WO2025143442A1 - Aerosol-generating article comprising surface plasmon resonance heat source and aerosol-generating system comprising same - Google Patents

Abstract

This aerosol-generating article comprises a first segment, the first segment comprising a medium and a heat source generating heat via surface plasmon resonance, wherein the heat source may comprise a substrate and a plurality of metal particles disposed thereon.

Description

Aerosol generating article comprising surface plasma resonance heat source and aerosol generating system comprising same

The disclosure generally relates to aerosol-generating articles and aerosol-generating systems, for example, aerosol-generating articles and aerosol-generating systems comprising a surface plasmon resonance (SPR) heat source.

Technologies are being developed to introduce airflow into aerosol-generating articles to implement atomization performance. For example, an aerosol generating device of the type that generates aerosol from an aerosol-generating article in a non-combustible manner is being developed. The background technology described above is something that was possessed or acquired during the process of deriving the present disclosure, and cannot necessarily be considered as a publicly known technology disclosed to the general public prior to the filing of the present disclosure.

One aspect of the disclosure can provide an aerosol generating article that generates an aerosol with increased thermal efficiency. One aspect of the disclosure can provide an aerosol generating system that generates an aerosol with increased thermal efficiency.

An aerosol generating article comprises a first segment, the first segment comprising a medium and a heat source configured to generate heat by surface plasmon resonance, the heat source comprising a substrate and a plurality of metal particles disposed on the substrate.

The heat source may include an absorption layer disposed on the substrate and configured to absorb light passing through the substrate.

The heat source may include a reflective layer disposed on the substrate and configured to reflect light toward the substrate.

The above heat source may include a heat transfer member configured to transfer heat to the medium.

The substrate may include a first end facing upstream of the first segment, a second end facing downstream of the first segment, and a side extending between the first end and the second end.

The above first end may include an opening.

The second end may comprise a closed surface.

The first segment may include a plurality of heat sources distributed at arbitrary intervals across the width or diameter of the first segment.

The second segment may further include a second segment connected to the first segment, wherein the second segment may include a filter.

The third segment may further include a third segment connected to the second segment, wherein the third segment may be configured to cool the generated aerosol.

Further comprising a fourth segment connected to the third segment, wherein the fourth segment may comprise an acetate tow.

The substrate includes an outer surface and an inner surface opposite to the outer surface, the inner surface including a curved surface, and the inner surface can define a cavity.

The substrate may include a first end facing upstream of the first segment, and a side extending downstream from the first end, and may include a dome-shaped solid disposed downstream from the side.

The substrate may include a first end facing upstream of the first segment, a second end facing downstream of the first segment, a side extending between the first end and the second end, and at least one extension extending from the second end or the side.

An aerosol generating system comprises an aerosol generating article, and an aerosol generating device configured to generate an aerosol from the aerosol generating article, wherein the aerosol generating device can include a plurality of light sources.

According to one embodiment, the thermal efficiency of the aerosol generating article can be increased. According to one embodiment, the power required to heat the aerosol generating article can be reduced. The effects of the aerosol generating article and the aerosol generating system according to one embodiment of the aerosol generating article are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

The above and other aspects, features and advantages of specific embodiments of the present disclosure will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

FIG. 1 is a block diagram of an aerosol generating device according to one embodiment of the present disclosure.

FIG. 2 is a drawing illustrating an aerosol generating device according to one embodiment of the present disclosure.

FIG. 3 is a drawing illustrating an aerosol generating device according to another embodiment of the present disclosure.

FIG. 4 is a drawing illustrating an aerosol generating device according to another embodiment of the present disclosure.

FIG. 5 is a front perspective view of an aerosol generating device according to embodiments of the present disclosure.

FIG. 6 is an exploded cross-sectional view of the upper case and body of an aerosol generating device according to one embodiment of the present disclosure.

FIG. 7 is a cross-sectional view of the upper case and body of an aerosol generating device according to one embodiment of the present disclosure.

FIG. 8 is an exploded cross-sectional view of the upper case and body of an aerosol generating device according to another embodiment of the present disclosure.

FIG. 9 is a cross-sectional view of the upper case and body of an aerosol generating device according to another embodiment of the present disclosure.

FIG. 10 is an exploded cross-sectional view of an upper case, a body, and a heater holder of an aerosol generating device according to another embodiment of the present disclosure.

FIG. 11 is a cross-sectional view of an upper case, a body, and a heater holder combined in an aerosol generating device according to another embodiment of the present disclosure.

FIG. 12 is a cross-sectional view of a heater holder of an aerosol generating device according to another embodiment of the present disclosure.

FIG. 13 is an exploded perspective view of the upper case, body, and heater holder of an aerosol generating device according to another embodiment of the present disclosure.

FIG. 14 is a cross-sectional view of an upper case, a body, and a heater holder combined in an aerosol generating device according to another embodiment of the present disclosure.

FIG. 15 is a perspective view of an aerosol generating article according to one embodiment.

FIG. 16 is a cross-sectional view of an aerosol generating article according to one embodiment.

FIG. 17 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

FIG. 18 is a drawing showing a cross-section of a part of a heat source according to one embodiment.

FIG. 19 is a drawing showing a cross-section of a part of a heat source according to one embodiment.

FIG. 20 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

FIG. 21 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

FIG. 22 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

FIG. 23 is a diagram illustrating an aerosol generating system according to one embodiment.

FIG. 24 is a diagram illustrating an aerosol generating system according to one embodiment.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing symbols, identical or similar components will be given the same reference numerals and redundant descriptions thereof will be omitted.

The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing the specification, and do not have distinct meanings or roles in themselves.

In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present disclosure.

Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another.

When it is said that a component is "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components in between. On the other hand, when it is said that a component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

FIG. 1 is a block diagram of an aerosol generating device (1) according to one embodiment of the present disclosure.

The aerosol generating device (1) may include a power source (11), a control unit (12), a sensor (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and at least one heater (18, 24). However, the internal structure of the aerosol generating device (1) is not limited to that shown in Fig. 1. That is, a person having ordinary skill in the art related to the present embodiment will understand that some of the configurations shown in Fig. 1 may be omitted or new configurations may be added depending on the design of the aerosol generating device (1).

The sensor (13) can detect the status of the aerosol generating device (1) or the status around the aerosol generating device (1) and transmit the detected information to the control unit (12). Based on the detected information, the control unit (12) can control the aerosol generating device (1) so that various functions such as controlling the operation of the cartridge heater (24) and/or the heater (18), restricting smoking, determining whether a stick (S) and/or cartridge (19) is inserted, and displaying a notification are performed.

The sensor (13) may include at least one of a temperature sensor (131), a puff sensor (132), an insertion detection sensor (133), a reuse detection sensor (134), a cartridge detection sensor (135), a cap detection sensor (136), and a movement detection sensor (137).

The temperature sensor (131) can detect the temperature at which the cartridge heater (24) and/or the heater (18) is heated. The aerosol generating device (1) may include a separate temperature sensor that detects the temperature of the cartridge heater (24) and/or the heater (18), or the cartridge heater (24) and/or the heater (18) itself may serve as the temperature sensor.

The temperature sensor (131) can output a signal corresponding to the temperature of the cartridge heater (24) and/or the heater (18). For example, the temperature sensor (131) can include a resistance element whose resistance value changes in response to a change in the temperature of the cartridge heater (24) and/or the heater (18). It can be implemented by a thermistor, which is an element that utilizes the property of changing resistance depending on temperature. At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the resistance element as a signal corresponding to the temperature of the cartridge heater (24) and/or the heater (18). For example, the temperature sensor (131) can be configured as a sensor that detects the resistance value of the cartridge heater (24) and/or the heater (18). At this time, the temperature sensor (131) can output a signal corresponding to the resistance value of the cartridge heater (24) and/or the heater (18) as a signal corresponding to the temperature of the cartridge heater (24) and/or the heater (18).

The temperature sensor (131) may be placed around the power source (11) to monitor the temperature of the power source (11). The temperature sensor (131) may be placed adjacent to the power source (11). For example, the temperature sensor (131) may be attached to one side of a battery, which is the power source (11). For example, the temperature sensor (131) may be mounted on one side of a printed circuit board.

A temperature sensor (131) is placed inside the body (10) and can detect the internal temperature of the body (10).

The puff sensor (132) can detect the user's puff based on various physical changes in the airflow path. The puff sensor (132) can output a signal corresponding to the puff. For example, the puff sensor (132) can be a pressure sensor. The puff sensor (132) can output a signal corresponding to the internal pressure of the aerosol generating device. Here, the internal pressure of the aerosol generating device (1) can correspond to the pressure of the airflow path through which the gas flows. The puff sensor (132) can be arranged corresponding to the airflow path through which the gas flows in the aerosol generating device (1).

The insertion detection sensor (133) can detect insertion and/or removal of the stick (S). The insertion detection sensor (133) can detect a signal change according to the insertion and/or removal of the stick (S). The insertion detection sensor (133) can be installed around the insertion space. The insertion detection sensor (133) can detect the insertion and/or removal of the stick (S) according to a change in the dielectric constant inside the insertion space. For example, the insertion detection sensor (133) can be an inductive sensor and/or a capacitance sensor.

The inductive sensor may include at least one coil. The coil of the inductive sensor may be arranged adjacent to the insertion space. For example, when a magnetic field changes around a coil through which current flows, the characteristics of the current flowing in the coil may change according to Faraday's law of electromagnetic induction. Here, the characteristics of the current flowing in the coil may include the frequency of the alternating current, the current value, the voltage value, the inductance value, the impedance value, etc.

An inductive sensor can output a signal corresponding to the characteristics of the current flowing in the coil. For example, an inductive sensor can output a signal corresponding to the inductance value of the coil.

The capacitance sensor may include a conductor. The conductor of the capacitance sensor may be arranged adjacent to the insertion space. The capacitance sensor may output a signal corresponding to an electromagnetic characteristic of the surroundings, for example, an electrostatic capacitance of the surroundings of the conductor. For example, when a stick (S) including a wrapper made of a metal material is inserted into the insertion space, the electromagnetic characteristic of the surroundings of the conductor may be changed by the wrapper of the stick (S).

The reuse detection sensor (134) can detect whether the stick (S) is reused. The reuse detection sensor (134) can be a color sensor. The color sensor can detect the color of the stick (S). The color sensor can detect the color of a part of a wrapper that wraps the outside of the stick (S). The color sensor can detect a value for an optical characteristic corresponding to the color of an object based on light reflected from the object. For example, the optical characteristic can be a wavelength of light. The color sensor can be implemented as a single configuration with the proximity sensor, or can be implemented as a separate configuration distinct from the proximity sensor.

At least some of the wrappers constituting the stick (S) may change color due to the aerosol. The reuse detection sensor (134) may be arranged in response to a position where at least some of the wrappers whose color changes due to the aerosol are arranged when the stick (S) is inserted into the insertion space. For example, before the stick (S) is used by a user, the color of at least some of the wrappers may be a first color. At this time, as at least some of the wrappers are wetted by the aerosol generated by the aerosol generating device (1) while passing through the stick (S), the color of at least some of the wrappers may change to a second color. Meanwhile, the color of at least some of the wrappers may be maintained as the second color after changing from the first color to the second color.

The cartridge detection sensor (135) can detect the mounting and/or removal of the cartridge (19). The cartridge detection sensor (135) can be implemented by an inductance-based sensor, a capacitive sensor, a resistance sensor, a Hall sensor (hall IC) using the Hall effect, etc.

The cap detection sensor (136) can detect the attachment and/or removal of the cap. When the cap is separated from the body (10), a portion of the cartridge (19) and the body (10) covered by the cap may be exposed to the outside. The cap detection sensor (136) can be implemented by a contact sensor, a hall sensor (hall IC), an optical sensor, or the like.

The motion detection sensor (137) can detect the movement of the aerosol generating device. The motion detection sensor (137) can be implemented with at least one of an acceleration sensor and a gyro sensor.

In addition to the sensors (131 to 137) described above, the sensor (13) may further include at least one of a humidity sensor, a pressure sensor, a magnetic sensor, a position sensor (GPS), and a proximity sensor. Since the function of each sensor can be intuitively inferred from its name by a person skilled in the art, a detailed description thereof may be omitted.

The output unit (14) can output information on the status of the aerosol generating device (1) and provide it to the user. The output unit (14) can include at least one of a display (141), a haptic unit (142), and an audio output unit (143), but is not limited thereto. When the display (141) and the touch pad form a layer structure to form a touch screen, the display unit (141) can be used as an input device in addition to an output device.

The display (141) can visually provide information about the aerosol generating device (1) to the user. For example, the information about the aerosol generating device (1) can mean various information such as the charging/discharging status of the power supply (11) of the aerosol generating device (1), the preheating status of the heater (18), the insertion/removal status of the stick (S) and/or cartridge (19), the mounting/removal status of the cap, or the status in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal item), and the display (141) can output the information to the outside. For example, the display (141) can be in the form of an LED light-emitting element. For example, the display (141) can be a liquid crystal display panel (LCD), an organic light-emitting display panel (OLED), etc.

The haptic unit (142) can convert an electrical signal into a mechanical stimulus or an electrical stimulus to provide tactile information about the aerosol generating device (1) to the user. For example, the haptic unit (142) can generate a vibration corresponding to the completion of the initial preheating when the initial power is supplied to the cartridge heater (24) and/or the heater (18) for a set period of time. The haptic unit (142) can include a vibration motor, a piezoelectric element, or an electrical stimulation device.

The acoustic output unit (143) can provide information about the aerosol generating device (1) to the user audibly. For example, the acoustic output unit (143) can convert an electric signal into an acoustic signal and output it to the outside.

The power source (11) can supply power used to operate the aerosol generating device (1). The power source (11) can supply power so that the cartridge heater (24) and/or the heater (18) can be heated. In addition, the power source (11) can supply power required for the operation of other components provided in the aerosol generating device (1), such as a sensor (13), an output unit (14), an input unit (15), a communication unit (16), and a memory (17). The power source (11) can be a rechargeable battery or a disposable battery. For example, the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto.

Although not shown in FIG. 1, the aerosol generating device (1) may further include a power protection circuit. The power protection circuit may be electrically connected to a power source (11) and may include a switching element.

The power protection circuit can block the power path to the power source (11) according to a predetermined condition. For example, the power protection circuit can block the power path to the power source (11) when the voltage level of the power source (11) is equal to or higher than a first voltage corresponding to overcharge. For example, the power protection circuit can block the power path to the power source (11) when the voltage level of the power source (11) is lower than a second voltage corresponding to overdischarge.

The heater (18) can receive power from the power source (11) to heat the medium or aerosol generating material within the stick (S). Although not shown in FIG. 10, the aerosol generating device (1) may further include a power conversion circuit (e.g., a DC/DC converter) that converts power from the power source (11) and supplies it to the cartridge heater (24) and/or the heater (18). In addition, when the aerosol generating device (1) generates the aerosol by induction heating, the aerosol generating device (1) may further include a DC/AC converter that converts direct current power of the power source (11) into alternating current power.

The control unit (12), the sensor (13), the output unit (14), the input unit (15), the communication unit (16), and the memory (17) can receive power from the power supply (11) and perform their functions. Although not shown in FIG. 1, a power conversion circuit, for example, an LDO (low dropout) circuit or a voltage regulator circuit, which converts the power of the power supply (11) and supplies it to each component, may be further included. In addition, although not shown in FIG. 10, a noise filter may be provided between the power supply (11) and the heater (18). The noise filter may be a low pass filter. The low pass filter may include at least one inductor and a capacitor. The cutoff frequency of the low pass filter may correspond to the frequency of the high frequency switching current applied from the power supply (11) to the heater (18). By the low pass filter, it is possible to prevent high frequency noise components from being applied to a sensor (13), such as an insertion detection sensor (133).

In one embodiment, the cartridge heater (24) and/or the heater (18) may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials may be metals or metal alloys including, but not limited to, titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, and the like. Additionally, the heater (18) may be implemented as, but is not limited to, a metal wire, a metal plate having electrically conductive tracks arranged thereon, a ceramic heating element, and the like.

In another embodiment, the heater (18) may be an induction heating type heater. For example, the heater (18) may include a susceptor that heats the aerosol generating material by generating heat through a magnetic field applied by the coil.

The input unit (15) can receive information input from a user or output information to the user. For example, the input unit (15) can be a touch panel. The touch panel can include at least one touch sensor that detects touch. For example, the touch sensor can include, but is not limited to, a capacitive touch sensor, a resistive touch sensor, a surface acoustic wave touch sensor, an infrared touch sensor, etc.

The display (141) and the touch panel may be implemented as a single panel. For example, the touch panel may be inserted (on-cell type or in-cell type) into the display (141). For example, the touch panel may be added-on (add-on type) on the display panel (141).

Meanwhile, the input unit (15) may include, but is not limited to, buttons, key pads, dome switches, jog wheels, jog switches, etc.

The memory (17) is a hardware that stores various data processed in the aerosol generating device (1), and can store data processed and data to be processed in the control unit (12). The memory (17) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD or XD memory, etc.), a RAM (random access memory), a SRAM (static random access memory), a ROM (read-only memory), an EEPROM (electrically erasable programmable read-only memory), a PROM (programmable read-only memory), a magnetic memory, a magnetic disk, and an optical disk. The memory (17) may store data on the operation time of the aerosol generating device (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and a user's smoking pattern.

The communication unit (16) may include at least one component for communicating with another electronic device. For example, the communication unit (16) may include at least one of a short-range communication unit and a wireless communication unit.

The short-range wireless communication unit may include, but is not limited to, a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a Near Field Communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, a UWB (ultra wideband) communication unit, an Ant+ communication unit, etc.

The wireless communication unit may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a LAN or WAN) communication unit, etc.

Although not shown in FIG. 1, the aerosol generating device (1) further includes a connection interface, such as a USB (universal serial bus) interface, and can transmit and receive information or charge a power source (11) by connecting to another external device through a connection interface, such as a USB interface.

The control unit (12) can control the overall operation of the aerosol generating device (1). In one embodiment, the control unit (12) can include at least one processor. The processor can be implemented as an array of a plurality of logic gates, or can be implemented as a combination of a general-purpose microprocessor and a memory storing a program that can be executed in the microprocessor. In addition, it will be understood by those skilled in the art to which the present embodiment belongs that the processor can be implemented as other types of hardware.

The control unit (12) can control the temperature of the heater (18) by controlling the supply of power from the power source (11) to the heater (18). The control unit (12) can control the temperature of the cartridge heater (24) and/or the heater (18) based on the temperature of the cartridge heater (24) and/or the heater (18) sensed by the temperature sensor (131). The control unit (12) can adjust the power supplied to the cartridge heater (24) and/or the heater (18) based on the temperature of the cartridge heater (24) and/or the heater (18). For example, the control unit (12) can determine a target temperature for the cartridge heater (24) and/or the heater (18) based on a temperature profile stored in the memory (17).

The aerosol generating device (1) may include a power supply circuit (not shown) electrically connected to the power supply (11) between the power supply (11) and the cartridge heater (24) and/or the heater (18). The power supply circuit may be electrically connected to the cartridge heater (24), the heater (18), or the induction coil (181). The power supply circuit may include at least one switching element. The switching element may be implemented by a bipolar junction transistor (BJT), a field effect transistor (FET), or the like. The control unit (12) may control the power supply circuit.

The control unit (12) can control power supply by controlling the switching of the switching elements of the power supply circuit. The power supply circuit may be an inverter that converts direct current power output from the power source (11) into alternating current power. For example, the inverter may be configured as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements.

The control unit (12) can turn on the switching element so that power is supplied from the power source (11) to the cartridge heater (24) and/or the heater (18). The control unit (12) can turn off the switching element so that power is cut off to the cartridge heater (24) and/or the heater (18). The control unit (12) can control the current supplied from the power source (11) by controlling the frequency and/or duty ratio of the current pulse input to the switching element.

The control unit (12) can control the voltage output from the power source (11) by controlling the switching of the switching element of the power supply circuit. The power conversion circuit can convert the voltage output from the power source (11). For example, the power conversion circuit can include a buck converter that steps down the voltage output from the power source (11). For example, the power conversion circuit can be implemented through a buck-boost converter, a zener diode, etc.

The control unit (12) can control the on/off operation of the switching element included in the power conversion circuit to adjust the level of the voltage output from the power conversion circuit. When the on state of the switching element continues, the level of the voltage output from the power conversion circuit may correspond to the level of the voltage output from the power source (11). The duty ratio for the on/off operation of the switching element may correspond to the ratio of the voltage output from the power conversion circuit to the voltage output from the power source (11). As the duty ratio for the on/off operation of the switching element decreases, the level of the voltage output from the power conversion circuit may decrease. The heater (18) can be heated based on the voltage output from the power conversion circuit.

The control unit (12) can control power to be supplied to the heater (18) by using at least one of the pulse width modulation (PWM) method and the proportional-integral-differential (PID) method.

For example, the control unit (12) can control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (18) using the PWM method. The control unit (12) can control the power supplied to the heater (18) by adjusting the frequency and duty ratio of the current pulse.

For example, the control unit (12) can determine a target temperature that is a target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18) by using a PID method, which is a feedback control method using a difference value between the temperature of the heater (18) and the target temperature, a value obtained by integrating the difference value over time, and a value obtained by differentiating the difference value over time.

The control unit (12) can prevent the cartridge heater (24) and/or the heater (18) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit to cut off the supply of power to the cartridge heater (24) and/or the heater (18) based on the temperature of the cartridge heater (24) and/or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can reduce the amount of power supplied to the cartridge heater (24) and/or the heater (18) by a predetermined ratio based on the temperature of the cartridge heater (24) and/or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can determine that the aerosol generating material contained in the cartridge (19) is exhausted based on the temperature of the cartridge heater (24) exceeding a preset limit temperature, and can cut off the supply of power to the cartridge heater (24).

The control unit (12) can control the charging and discharging of the power supply (11). The control unit (12) can check the temperature of the power supply (11) based on the output signal of the temperature sensor (131).

When a power line is connected to the battery terminal of the aerosol generating device (1), the control unit (12) can check whether the temperature of the power source (11) is equal to or higher than the first limit temperature, which is a criterion for blocking charging of the power source (11). When the temperature of the power source (11) is lower than the first limit temperature, the control unit (12) can control the power source (11) to be charged based on a preset charging current. When the temperature of the power source (11) is equal to or higher than the first limit temperature, the control unit (12) can block charging of the power source (11).

When the power of the aerosol generating device (1) is turned on, the control unit (12) can check whether the temperature of the power source (11) is equal to or higher than the second limit temperature, which is a criterion for blocking discharge of the power source (11). If the temperature of the power source (11) is lower than the second limit temperature, the control unit (12) can control to use the power stored in the power source (11). If the temperature of the power source (11) is equal to or higher than the second limit temperature, the control unit (12) can stop using the power stored in the power source (11).

The control unit (12) can calculate the remaining capacity of the power stored in the power source (11). For example, the control unit (12) can calculate the remaining capacity of the power source (11) based on the voltage and/or current sensing values of the power source (11).

The control unit (12) can determine whether a stick (S) is inserted into the insertion space through the insertion detection sensor (133). The control unit (12) can determine that the stick (S) is inserted based on the output signal of the insertion detection sensor (133). If it is determined that the stick (S) is inserted into the insertion space, the control unit (12) can control to supply power to the cartridge heater (24) and/or the heater (18). For example, the control unit (12) can supply power to the cartridge heater (24) and/or the heater (18) based on the temperature profile stored in the memory (17).

The control unit (12) can determine whether the stick (S) is removed from the insertion space. For example, the control unit (12) can determine whether the stick (S) is removed from the insertion space through the insertion detection sensor (133). For example, the control unit (12) can determine that the stick (S) is removed from the insertion space when the temperature of the heater (18) is higher than a limited temperature or when the temperature change slope of the heater (18) is higher than a set slope. When it is determined that the stick (S) is removed from the insertion space, the control unit (12) can cut off the power supply to the cartridge heater (24) and/or the heater (18).

The control unit (12) can control the power supply time and/or power supply amount to the heater (18) according to the state of the stick (S) detected by the sensor (13). The control unit (12) can check the level range that includes the level of the signal of the capacitance sensor based on a lookup table. The control unit (12) can determine the moisture content of the stick (S) according to the checked level range.

When the stick (S) is in an over-humidified state, the control unit (12) can control the power supply time to the heater (18) to increase the preheating time of the stick (S) compared to the normal state.

The control unit (12) can determine whether the stick (S) inserted into the insertion space is reused through the reuse detection sensor (134). For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a first reference range that includes a first color, and if the sensing value is included in the first reference range, it can determine that the stick (S) is not used. For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor with a second reference range that includes a second color, and if the sensing value is included in the second reference range, it can determine that the stick (S) is used. If it is determined that the stick (S) is used, the control unit (12) can cut off the supply of power to the cartridge heater (24) and/or the heater (18).

The control unit (12) can determine whether the cartridge (19) is coupled and/or removed through the cartridge detection sensor (135). For example, the control unit (12) can determine whether the cartridge (19) is coupled and/or removed based on the sensing value of the signal of the cartridge detection sensor.

The control unit (12) can determine whether the aerosol generating material of the cartridge (19) is exhausted. For example, the control unit (12) can preheat the cartridge heater (24) and/or the heater (18) by applying power, and determine whether the temperature of the cartridge heater (24) exceeds a limit temperature during the preheating section. If the temperature of the cartridge heater (24) exceeds the limit temperature, the control unit (12) can determine that the aerosol generating material of the cartridge (19) is exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge (19) is exhausted, the control unit (12) can cut off the supply of power to the cartridge heater (24) and/or the heater (18).

The control unit (12) can determine whether the cartridge (19) is usable. For example, the control unit (12) can determine that the cartridge (19) cannot be used if the current number of puffs is greater than or equal to the maximum number of puffs set for the cartridge (19) based on data stored in the memory (17). For example, the control unit (12) can determine that the cartridge (19) cannot be used if the total time that the heater (24) has been heated is greater than or equal to the preset maximum time or the total amount of power supplied to the heater (24) is greater than or equal to the preset maximum amount of power.

The control unit (12) can perform a judgment regarding the user's inhalation through the puff sensor (132). For example, the control unit (12) can determine whether a puff has occurred based on the sensing value of the signal of the puff sensor. For example, the control unit (12) can determine the intensity of the puff based on the sensing value of the signal of the puff sensor (132). If the number of puffs reaches a preset maximum number of puffs or if no puffs are detected for a preset time or longer, the control unit (12) can cut off the supply of power to the cartridge heater (24) and/or heater (18).

The control unit (12) can determine whether the cap is attached and/or removed through the cap detection sensor (136). For example, the control unit (12) can determine whether the cap is attached and/or removed based on the sensing value of the signal of the cap detection sensor.

The control unit (12) can control the output unit (14) based on the result detected by the sensor (13). For example, when the number of puffs counted through the puff sensor (132) reaches a preset number, the control unit (12) can notify the user that the aerosol generating device (1) will soon be terminated through at least one of the display (141), the haptic unit (142), and the sound output unit (143). For example, the control unit (12) can notify the user through the output unit (14) based on the determination that the stick (S) does not exist in the insertion space. For example, the control unit (12) can notify the user through the output unit (14) based on the determination that the cartridge (19) and/or the cap is not mounted. For example, the control unit (12) can transmit information on the temperature of the cartridge heater (24) and/or the heater (18) to the user through the output unit (14).

The control unit (12) can store and update the history of the event that occurred in the memory (17) based on the occurrence of a predetermined event. The event may include operations such as detection of insertion of the stick (S), initiation of heating of the stick (S), detection of puff, termination of puff, detection of overheating of the cartridge heater (24) and/or the heater (18), detection of overvoltage application to the cartridge heater (24) and/or the heater (18), termination of heating of the stick (S), on/off of the aerosol generating device (1), initiation of charging of the power source (11), detection of overcharge of the power source (11), termination of charging of the power source (11), etc. The history of the event may include the time when the event occurred, log data corresponding to the event, etc. For example, when the predetermined event is detection of insertion of the stick (S), the log data corresponding to the event may include data on the sensing value of the insertion detection sensor (133), etc. For example, if a given event is overheating detection of the cartridge heater (24) and/or heater (18), log data corresponding to the event may include data on the temperature of the cartridge heater (24) and/or heater (18), the voltage applied to the cartridge heater (24) and/or heater (18), the current flowing to the cartridge heater (24) and/or heater (18), etc.

The control unit (12) can control to form a communication link with an external device, such as a user's mobile terminal. When data regarding authentication is received from the external device through the communication link, the control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1). Here, the data regarding authentication can include data indicating completion of user authentication for a user corresponding to the external device. The user can perform user authentication through the external device. The external device can determine whether user data is valid based on the user's birthday, a unique number indicating the user, etc., and can receive data regarding the use authority of the aerosol generating device (1) from an external server. The external device can transmit data indicating completion of user authentication to the aerosol generating device (1) based on the data regarding the use authority. When the user authentication is completed, the control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1). For example, the control unit (12) can release the restriction on the use of the heating function that supplies power to the heater (18) when user authentication is completed.

The control unit (12) can transmit data on the status of the aerosol generating device (1) to the external device through a communication link formed with the external device. Based on the received status data, the external device can output the remaining capacity of the power supply (11) of the aerosol generating device (1), the operation mode, etc. through the display of the external device.

The external device can transmit a location search request to the aerosol generating device (1) based on an input that initiates location search of the aerosol generating device (1). When receiving a location search request from the external device, the control unit (12) can control at least one of the output devices to perform an operation corresponding to the location search based on the received location search request. For example, the haptic unit (142) can generate vibration in response to the location search request. For example, the display (141) can output an object corresponding to the location search and the end of the search in response to the location search request.

The control unit (12) can control to perform a firmware update when receiving firmware data from an external device. The external device can check the current version of the firmware of the aerosol generating device (1) and determine whether a new version of the firmware exists. When an input requesting firmware download is received, the external device can receive a new version of the firmware data and transmit the new version of the firmware data to the aerosol generating device (1). The control unit (12) can control to perform a firmware update of the aerosol generating device (1) when receiving a new version of the firmware data.

The control unit (12) can transmit data on the sensing value of at least one sensor (13) to an external server (not shown) through the communication unit (16), and receive and store a learning model generated by learning the sensing value through machine learning such as deep learning from the server. The control unit (12) can perform an operation of determining a user's inhalation pattern, an operation of generating a temperature profile, etc., using the learning model received from the server. The control unit (12) can store, in the memory (17), the sensing value data of at least one sensor (13) and data for learning an artificial neural network (ANN). For example, the memory (17) can store a database for each component equipped in the aerosol generating device (1) for learning the artificial neural network (ANN), and weights and biases forming the artificial neural network (ANN) structure. The control unit (12) can learn data on the sensing values of at least one sensor (13), the user's suction pattern, temperature profile, etc., stored in the memory (17), and generate at least one learning model used for determining the user's suction pattern, generating a temperature profile, etc.

FIGS. 2 to 4 illustrate aerosol generating devices according to various embodiments of the present disclosure.

Referring to FIG. 2, an aerosol generating device (1) according to embodiments of the present disclosure may include at least one of a power source (11), a control unit (12), a sensor (13), and a heater (18). At least one of the power source (11), the control unit (12), the sensor (13), and the heater (18) may be disposed inside a body (10) of the aerosol generating device (1). The body (10) may provide a space opened upwardly so that a stick (S), which is an aerosol generating article, may be inserted. The space opened upwardly may be referred to as an insertion space. The insertion space may be formed by being sunken toward the inside of the body (10) by a predetermined depth so that at least a portion of the stick (S) may be inserted. The depth of the insertion space may correspond to the length of a region in the stick (S) into which an aerosol generating material and/or medium is included. The lower end of the stick (S) is inserted into the inside of the body (10), and the upper end of the stick (S) can protrude outside of the body (10). The user can put the upper end of the stick (S) exposed to the outside in his mouth and inhale air.

The heater (18) can heat the stick (S). The heater (18) can be extended upwardly in a space where the stick (S) is inserted. For example, the heater (18) can include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element. The heater (18) can be inserted into the lower part of the stick (S). The heater (18) can include an electrical resistance heater and/or an induction heating heater.

For example, referring to FIG. 2, the heater (18) may be a resistive heater. For example, the heater (18) may include an electrically conductive track, and the heater (18) may be heated as current flows through the electrically conductive track. The heater (18) may be electrically connected to a power source (11). The heater (18) may be directly heated by receiving current from the power source (11).

For example, the heater (18) may be a multi-heater. The heater (18) may include a first heater (18A) and a second heater (18B). The first and second heaters (18A, 18B) may be arranged side by side along the longitudinal direction. The first and second heaters (18A, 18B) may be heated sequentially or simultaneously.

For example, referring to FIG. 3, the aerosol generating device (1) may include an induction coil (181) surrounding a heater (18). The induction coil (181) may heat the heater (18). The heater (18) is a susceptor, and the heater (18) may be heated by a magnetic field generated by an AC current flowing through the induction coil (181). The magnetic field may penetrate the heater (18) and generate an eddy current within the heater (18). The current may generate heat in the heater (18).

For example, referring to FIG. 4, a susceptor (SS) may be included inside the stick (S), and the susceptor (SS) inside the stick (S) may be heated by a magnetic field generated by an AC current flowing through an induction coil (181). The susceptor (SS) may be arranged inside the stick (S) and may not be electrically connected to the aerosol generating device (1). The susceptor (SS) may be inserted into the insertion space together with the stick (S) and may be removed from the insertion space together with the stick (S). The stick (S) may be heated by the susceptor (SS) inside the stick (S). At this time, the aerosol generating device (1) may not be equipped with a heater (18).

The power source (11) can supply power to operate components of the aerosol generating device (1). The power source (11) can be referred to as a battery. The power source (11) can supply power to at least one of the control unit (12), the sensor (13), and the heater (18). The power source (11) can supply power to the induction coil (181).

The control unit (12) can control the overall operation of the aerosol generating device (1). The control unit (12) can be mounted on a printed circuit board (PCB). The control unit (12) can control the operation of at least one of the power supply (11), the sensor (13), and the heater (18). The control unit (12) can control the operation of the induction coil (181). The control unit (12) can control the operation of the display, motor, etc. installed in the aerosol generating device (1). The control unit (12) can check the status of each of the components of the aerosol generating device (1) to determine whether the aerosol generating device (1) is in an operable state.

The control unit (12) can analyze the results detected by the sensor (13) and control the processes to be performed thereafter. For example, the control unit (12) can control the power supplied to the heater (18) so that the operation of the heater (18) is started or ended based on the results detected by the sensor (13). For example, the control unit (12) can control the amount of power supplied to the heater (18) and the time for which the power is supplied so that the heater (18) can be heated to a predetermined temperature or maintained at an appropriate temperature based on the results detected by the sensor (13).

The sensor (13) may include at least one of a temperature sensor, a puff sensor, an insertion detection sensor, and an acceleration sensor. For example, the sensor (13) may sense at least one of a temperature of a heater (18), a temperature of a power source (11), and a temperature inside and outside the body (10). For example, the sensor (13) may sense a puff of a user. For example, the sensor (13) may sense whether a stick (S) is inserted into an insertion space. For example, the sensor (13) may sense a movement of an aerosol generating device (1).

FIG. 5 is a front perspective view of an aerosol generating device according to embodiments of the present disclosure.

Referring to FIG. 5, the upper case (40) can be detachably coupled to the body (10). The upper case (40) can be coupled to the upper side of the body (10). The upper case (40) can cover the upper periphery of the body (10). The upper case (40) can have an insertion port (44). A stick (S) can be inserted into the insertion port (44). The upper case (40) can include a cap (45) for opening and closing the insertion port (44). The cap (45) can slide laterally to open and close the insertion port (44).

The upper case (40) may include an upper case wing (42). The upper case wing (42) may extend downward from both sides of the upper case body (41). The upper case wing (42) may be called an upper case grip (42).

The body (10) may include a body wing (116). The body wing (116) may extend upward from an edge of the upper portion of the body (10). The body wings (116) may be formed as a pair facing each other with the upper portion of the body (10) as the center. The body wings (116) may be formed at a position misaligned with the upper case wings (42).

When the upper case (40) is coupled to the body (10), the upper case (40) can form the upper outer surface of the aerosol generating device. When the upper case (40) is coupled to the body (10), the body wing (116) can cover the side portion of the upper case (40) exposed between the upper case wings (42). When the upper case (40) is coupled to the body (10), the upper case wing (42) can cover the outer wall of the body (10).

FIG. 6 is an exploded cross-sectional view of an upper case and a body of an aerosol generating device according to an embodiment of the present disclosure, and FIG. 7 is a combined cross-sectional view of an upper case and a body of an aerosol generating device according to an embodiment of the present disclosure.

Referring to FIG. 6, an aerosol generating device according to an embodiment of the present disclosure may include at least one of a battery (A101), a control unit (A102), and a sensor (A103). At least one of the battery (A101), the control unit (A102), and the sensor (A103) may be disposed inside a body (A10) of the aerosol generating device. The features of the battery (A101), the control unit (A102), and the sensor (A103) may be applied identically to the contents of the battery (101), the control unit (102), and the sensor (103) described above with reference to FIGS. 1 and 2.

The body (A10) may have a pipe (A11, A12) forming a first insertion space (A14). The first insertion space (A14) may be formed at an upper portion of the body (A10). The first insertion space (A14) may be opened upward. The first insertion space (A14) may have a cylindrical shape that is elongated in the vertical direction. The first side wall (A11) of the pipe (A11, A12) may surround a side of the first insertion space (A14). The first flange (A12) of the pipe (A11, A12) may cover a lower portion of the first insertion space (A14).

The extractor (A20) may have a second insertion space (A24) therein. The second insertion space (A24) may be opened toward the upper side of the extractor (A20). The second insertion space (A24) may have a cylindrical shape that is extended vertically. The second side wall (A21) of the extractor (A20) may surround the side of the second insertion space (A24). The second flange (A22) of the extractor (A20) may cover the lower part of the second insertion space (A24). The through hole (A23) may be formed by opening the center of the second flange (A22).

Referring to FIG. 7, the extractor (A20) can be inserted into the first insertion space (A14). When the extractor (A20) is inserted into the first insertion space (A14), the second insertion space (A24) can be arranged inside the first insertion space (A14). The second insertion space (A24) can be opened toward the upper side of the body (A10). The diameter of the second insertion space (A24) can be smaller than the diameter of the first insertion space (A14). The first insertion space (A14) and the second insertion space (A24) can be communicated with each other through a through hole (A23).

The heater assembly (A30) can be fixed to the body (A10). The heater assembly (A30) can protrude upwardly from the first flange (A12) in a long manner in the first insertion space (A14). The heater assembly (A30) can pass through the through hole (A23). The upper portion of the heater assembly (A30) can be placed in the second insertion space (A24) through the through hole (A23). The heater assembly (A30) can heat the second insertion space (A24).

The heater assembly (A30) may include a heater rod (A31) and a heater (A33). The heater rod (A31) may protrude upward from the first flange (A12) toward the first insertion space (A14). The heater rod (A31) may extend vertically. The body of the heater rod (A31) may have a cylindrical shape. The upper end of the heater rod (A31) may be formed to be pointed upward.

The heater (A33) can be inserted into the hollow (A34) of the heater rod (A31). The heater (A33) can be fixed to the inside of the heater rod (A31). The hollow (A34) is opened downward, but can be filled by a heater cap (A35). The heater mount (A15) can be formed by the first flange (A12) being sunken downward. The lower end of the heater rod (A31) and the heater cap (A35) can be fixed to the heater mount (A15).

The heater (A33) may be a resistive heater. When the heater (A33) is heated, the heat may pass through the heater rod (A31) to heat the second insertion space (A24). The induction coil (A13) may heat the heater (A33). The induction coil (A13) may be wound around the first side wall (A11) upwardly and downwardly and may surround the first insertion space (A14) and the heater (A33). The heater (A33) is a susceptor, and the heater (A33) may be heated by a magnetic field generated by an AC current flowing through the induction coil (A13). The magnetic field may pass through the heater (A33) and generate an eddy current within the heater (A33). The current may generate heat in the heater (A33). Alternatively, unlike as illustrated, the heater (A33) may be directly supplied with power and heated.

The upper case (A40) can be detachably coupled to the body (A10). The upper case (A40) can cover the upper portion of the body (A10) around the first insertion space (A14). The extractor (A20) is coupled to the upper case (A40) and can operate integrally with the upper case (A40). When the upper case (A40) is coupled to the body (A10), the extractor (A20) can be inserted into the first insertion space (A14), and the heater assembly (A30) can pass through the through hole (A23) of the second flange (A22) and be positioned within the second insertion space (A24).

The upper case (A40) may have an insertion port (A44). The insertion port (A44) may be aligned with the second insertion space (A24) on the upper side of the second insertion space (A24) of the extractor (A20). The insertion port (A44) may have a circular cross-section. The cover (A45) may be movably installed on the upper case (A40). The cover (A45) may open and close the insertion port (A44) and the second insertion space (A24).

The sensor (A103) can sense the temperature of the heater (A33). The control unit (A102) can control the temperature of the heater (A33) based on the temperature of the heater (A33) sensed by the sensor (A103).

The stick (S) can be inserted into the second insertion space (A24). The stick (S) can be inserted into the second insertion space (A24) through the insertion port (A44). The upper side of the stick (S) can be exposed to the upper side of the extractor (A20) and the upper case (A40). The stick (S) can be supported by the second side wall (A21) and the second flange (A22) in the second insertion space (A24). The heater rod (A31) penetrating the through hole (A23) can be inserted into the lower part of the stick (S) inserted into the second insertion space (A24). The stick (S) can be heated by the heater (A33) inside the heater rod (A31) to generate aerosol.

A user can inhale air by placing one end of the stick (S) exposed to the outside in his/her mouth. The air can be drawn into the stick (S) through the penetration hole (A23), entrained in an aerosol, and provided to the user.

FIG. 8 is an exploded cross-sectional view of an upper case and a body of an aerosol generating device according to another embodiment of the present disclosure, and FIG. 9 is a combined cross-sectional view of an upper case and a body of an aerosol generating device according to another embodiment of the present disclosure.

Referring to FIG. 8, in an aerosol generating device according to another embodiment of the present disclosure, a heater assembly (B10) may be extended vertically. The heater assembly (B10) may include a cylindrical shape. An upper end of the heater assembly (B10) may be formed pointedly. The heater assembly (B10) may provide a space into which a heater (B16) may be inserted. The heater assembly (B10) may have high heat resistance. For example, the heater assembly (B10) may be manufactured from a ceramic material.

The heater assembly (B10) may have heater fins (B11, 12). The heater fins (B11, 12) may have fin bodies (B11). The fin bodies (B11) may be extended vertically. The fin bodies (B11) may have a cylindrical shape. The fin bodies (B11) may be formed with a hollow interior (B14). The lower portion of the heater assembly (B10) may be open and communicate with the hollow interior (B14). The hollow interior (B14) may be extended vertically.

The heater fins (B11, 12) may have pin tips (B12). The pin tips (B12) may form the upper end of the heater assembly (B10). The pin tips (B12) may be formed integrally with the pin body (B11) on the upper end of the pin body (B11). The pin tips (B12) may have a shape that gradually narrows toward the upper end. The pin tips (B12) may have a pointed top. Accordingly, the heater assembly (B10) may penetrate the stick (S) to secure the stick (S).

The heater (B16) may be formed to be elongated in the vertical direction. The heater (B16) may be inserted into the hollow (B14) of the heater assembly (B10). The heater (B16) is a magnetic body and may be heated by an induced current. The heater (B16) may have a shape in which a thin plate is rolled up. The heater (B16) may have a cylindrical shape with one side cut vertically.

The reinforcement (B17) can block or fill the opening of the hollow (B14). The reinforcement (B17) can be placed on the lower side of the heater (B16). The reinforcement (B17) can support the lower part of the heater (B16) within the hollow (B14).

The pipe (B20) may have a pipe body (B21). The pipe body (B21) may be extended vertically. The pipe body (B21) may be formed in a hollow cylindrical shape. The pipe body (B21) may provide an insertion space (B24) that is opened upward.

The pipe (B20) may be provided with a catch (B26). The catch (B26) may protrude laterally or radially outwardly from the outer surface of the rim formed on the upper portion of the pipe (B20). The catch (B26) may be provided in multiple numbers. The multiple catch (B26) may be arranged circumferentially apart from each other along the periphery of the rim.

The pipe (B20) may have a bottom portion (B23). The bottom portion (B23) may be formed at the bottom of the pipe (B20). The bottom portion (B23) may be located at the lower side of the pipe body (B21). The bottom portion (B23) may be formed integrally with the pipe body (B21). The bottom portion (B23) may cover the bottom or bottom of the insertion space (B24). The bottom portion (B23) may be referred to as the bottom (B23) of the pipe (B20).

The inflow hole (B234) may be formed by opening the bottom portion (B23). The inflow hole (B234) may be located at the lower side of the insertion space (B24). The inflow hole (B234) may be opened toward the insertion space (B24). The inflow hole (B234) may be communicated with the insertion space (B24). The inflow hole (B234) may communicate the insertion space (B24) with the outside.

The pipe (B20) may be provided with a mount (B25). The mount (B25) may protrude downward from the bottom portion (B23). The mount (B25) may be formed at the center of the bottom portion (B23). The lower portion of the mount (B25) may be opened to form a mount hole (B254).

The inlet holes (B234) may be provided in multiple numbers. The multiple inlet holes (B234) may be formed around the mount (B25). The multiple inlet holes (B234) may be arranged spaced apart from each other in a circumferential direction centered on the mount (B25). The multiple inlet holes (B234) may be arranged radially centered on the mount (B25). The inlet holes (B234) may be located above the bottom of the mount (B25).

The heater assembly (B10) can be fixed to the pipe (B20). The lower part of the heater assembly (B10) is fixed to the bottom part (B23) or around the bottom part (B23), and the upper part of the heater assembly (B10) can protrude into the insertion space (B24).

The flange (B15) and the reinforcement (B17) can be inserted into and joined to the mount groove of the mount (B25). The mount (B25) and the bottom portion (B23) can be elastic bodies having a certain degree of elasticity. For example, the pipe (B20) can be made of plastic. When the flange (B15) and the reinforcement (B17) are inserted into the mount groove, the mount shape around the mount groove is deformed and then returns to its original position, and the flange (B15) and the reinforcement (B17) can be pressed in. The flange (B15) and the reinforcement (B17) can be joined to the mount (B25) by bonding.

The pin body (B11) can be placed in the insertion space (B24). The pin body (B11) can be placed lengthwise along the length of the insertion space (B24). The pin tip (B12) can face the opening of the insertion space (B24).

Accordingly, the heater assembly (B10) can be fixed to the pipe (B20). In addition, the heater assembly (B10) can be prevented from rotating in the circumferential direction. In addition, the heater assembly (B10) can be prevented from being separated from the pipe (B10) in the vertical direction.

The heater (B16) can be spaced apart from the upper surface of the bottom portion (B23) by a predetermined height. Accordingly, the influence of the heat generated from the heater (B16) on the bottom portion (B23) of the pipe (B20) can be reduced. In addition, the bottom portion (B23) of the pipe (B20) can be prevented from being thermally deformed and a gap can be generated or widened between the bottom portion (B23) of the pipe (B20) and the heater assembly (B10), and foreign substances such as liquid can be prevented from leaking through the gap.

The pipe (B20) can be combined with the upper case (B30). The upper case (B30) can have an insertion port (B34) communicating with the insertion space (B24). The upper case (B30) can be formed by combining a first upper case (B31) and a second upper case (B32). The first upper case (B31) can form the exterior of the upper case (B30), and the second upper case (B32) can form the interior of the upper case (B30). The first upper case (B31) can be combined on the upper side or the exterior side of the second upper case (B32). The rim and the catch (B26) of the pipe (B20) can be arranged and combined between the first upper case (B31) and the second upper case (B32).

The first upper case (B31) may have an upper frame (B311). The upper frame (B311) may be formed transversely parallel to the pipe (B20). The upper frame (B311) may form an upper outer shape of the upper case (B30). The insertion hole (B34) may be formed by opening one side of the upper frame (B311).

The upper case (B30) may be provided with a cap (B35) for opening and closing the insertion port (B34). The cap (B35) may be movably installed on the upper frame (B311) of the upper case (B30). The upper portion of the cap (B35) may be exposed to the outside of the first upper case (B31). The lower portion of the cap (B35) may be located between the first upper case (B31) and the second upper case (B32). When the cap (B35) opens the insertion port (B34), the insertion space (B24) may also be opened to the outside through the insertion port (B34). When the cap (B35) closes the insertion port (B34), the insertion space (B24) may also be closed by the cap (B35). The cap (B35) may be slidably or pivotally movable. Accordingly, the pipe (B20) can move together with the upper case (B30). In addition, the pipe (B20) can be prevented from rotating circumferentially with respect to the upper case (B30).

The body (B100) may have a pipe groove (B104). The pipe groove (B104) may be formed by the upper surface (B103) of the body (B100) being sunken downward. The pipe groove (B104) may be opened upward. The pipe groove (B104) may be extended vertically. The pipe groove (B104) may be named a groove (B104).

Referring to FIG. 9, the upper case (B30) can cover the upper part of the body (B100). The upper case (B30) can cover the body (B100) so as to surround the groove (B104). The upper case (B30) can be detachably coupled to the body (B100). When the upper case (B30) is coupled to the body (B100), the pipe (B20) can be inserted into the pipe groove (B104).

The body cover (B107) can surround the side of the body (B100). The body cover (B107) can protrude upward from the edge of the body (B100) above the upper surface (B103) of the body (B100). The body cover (B107) can form a cover groove into which an upper case cover (B37) can be inserted on one side and the other side of the body (B100). The cover groove can be in contact with the side (B102) of the body (B100). The cover groove can have a layout and shape corresponding to those of the upper case cover (B37). The upper case cover (B37) can be guided to be inserted into the cover groove by coming into contact with the body cover (B107).

When the upper case (B30) is coupled to the body (B100), the lower frame (B321) of the upper case (B30) can cover the upper surface (B103) of the body (B100). When the upper case (B30) is coupled to the body (B100), the upper case cover (B37) can be inserted into the cover home to cover the side surfaces (B102) of the body (B100).

The user can open the insertion port (B34) and the insertion space (B24) by moving the cap (B35). The stick (S) can be inserted into the insertion port (B34) and the insertion space (B24) and protrude upward from the upper case (B30). The user can put the stick (S) in his mouth and inhale air.

Accordingly, the user can separate the upper case (B30) and the pipe (B20) together from the body (B100). In addition, the pipe (B20) can be separated from the body (B100) to facilitate cleaning inside the pipe (B20). In addition, foreign substances can be prevented from entering around the groove (B104) of the pipe (B20) and the body (B100) through the upper case (B30).

The body (B100) can have a container (B101). The container (B101) can provide a pipe groove (B104). The pipe groove (B104) can be surrounded by the container (B101). The pipe groove (B104) can be extended vertically. The pipe groove (B104) can be opened upward. The container bottom (B1011) can cover the lower part of the pipe groove (B104). The container bottom (B1011) can be the bottom (B1011) of the pipe groove (B104). When the upper case (B30) is coupled to the body (B100), the pipe (B20) can be inserted into the pipe groove (B104).

The induction coil (B109) can be wound multiple times around the container (B101). The induction coil (B109) can be arranged from the periphery of the container bottom (B1011) to the periphery of the opening of the pipe groove (B104). When the upper case (B30) is coupled to the body (B100), the heater (B16) is arranged in the pipe groove (B104), and the induction coil (B109) can surround the periphery of the heater (B16). The heater (B16) can be heated by the induction coil (B109).

A sensor (B105) may be placed inside the body (B100). The sensor (B105) may sense information about the temperature of the heater (B16), whether the stick (BS) is inserted into the insertion space (B24), whether the pipe (B20) is inserted into the pipe groove (B104), etc. The sensor (B105) may sense the above information according to a change in dielectric constant inside the pipe groove (B104). For example, the sensor (B105) may be a capacitance sensor. The sensor (B105) may be installed around the pipe groove (B104).

For example, the sensor (B105) can detect a change in permittivity around the heater (B16) and indirectly estimate the temperature of the heater (B16). For example, a memory installed inside the device can store information about a look-up table for a correlation between a change in permittivity around the heater (B16) detected by the sensor (B105) and the heating temperature of the heater (B16). For example, a control unit installed inside the device can receive a signal about a change in permittivity from the sensor (B105) and estimate the temperature of the heater (B16) using the look-up table.

Accordingly, the sensor (B105) can sense the temperature of the heater (B16) even without a lead wire connecting from the heater (B16) to the interior of the body (B100).

The inner surface of the pipe body (B21) may have a tapered shape that gradually narrows from the periphery of the insertion port (B34) toward the bottom portion (B23) of the pipe (B20). The stick (S) may be guided to pass through the insertion port (B34) and be settled into the interior of the insertion space (B24) by the inner surface of the pipe body (B21).

When the upper case (B30) is connected to the body (B100), the upper case (B30) can separate the pipe (B20) from the container (B101).

When the pipe (B20) is inserted into the pipe groove (B104), the mount (B25) can be located at the bottom of the pipe groove (B104). The mount (B25) can be spaced apart from the container bottom (B1011) by a first distance upward. The inlet hole (B234) can be spaced apart from the container bottom (B1011) by a second distance upward. The second distance can be greater than the first distance.

The side of the pipe body (B21) and the container (B101) can be spaced apart. The first flow path (B1041) can be formed between the side of the pipe body (B21) and the container (B101). The first flow path (B1041) can circumferentially surround the pipe body (B21). The first flow path can be formed on one side of the pipe groove (B104).

The second flow path (B1041) may be formed between the inlet hole (B234) and the bottom of the container (B101). The second flow path (B1041) may be surrounded by the bottom of the container (B101), the mount (B25), and the bottom (B23) of the pipe (B20). The second flow path (B1041) may circumferentially surround the mount (B25). The second flow path (B1041) may be communicated with the first flow path. The second flow path (B1041) may be located at the bottom of the first flow path. The second flow path (B1041) may be located at the bottom of the inlet hole (B234). The second flow path (B1041) may be communicated with the inlet hole (B234). The second flow path (B1041) may be formed on the other side of the pipe groove (B104). The second flow path (B1041) may be named an inlet chamber (B1041).

When a user inhales air, air can flow from the first flow path to the second flow path (B1041). The air flowed into the second flow path (B1041) can pass through the inlet hole (B234) and be supplied to the stick (S) inserted into the insertion space (B24).

Accordingly, foreign substances such as liquid existing at the bottom of the container (B101) can be prevented from being deposited on the lower part of the pipe (B20), such as the mount (B25) or the bottom (B23). In addition, air is collected in the second flow path (B1041) and then introduced into the inlet hole (B234), so that the airflow can be stabilized and the flow efficiency can be improved.

FIG. 10 is an exploded cross-sectional view of an upper case, a body, and a heater holder of an aerosol generating device according to another embodiment of the present disclosure, FIG. 11 is a combined cross-sectional view of an upper case, a body, and a heater holder of an aerosol generating device according to another embodiment of the present disclosure, and FIG. 12 is a cross-sectional view of a heater holder of an aerosol generating device according to another embodiment of the present disclosure.

Referring to FIG. 10, an aerosol generating device according to another embodiment of the present disclosure may have a body (C10) that is elongated vertically. The body (C10) may provide a first insertion space (C14) therein. The first insertion space (C14) may be opened upward. The first insertion space (C14) may have a cylindrical shape that is elongated vertically. The first insertion space (C14) may be defined by a body pipe (C11) formed inside the body (C10). The body pipe (C11) may include a lateral wall (C111) surrounding the periphery of the first insertion space (C14) and a lower wall (C112) covering the bottom of the first insertion space (C14). The lower wall (C112) may be formed at the bottom of the body pipe (C11). The side wall (C111) of the body pipe (C11) may be named the inner lateral wall (C111) of the body (C10).

The heater holder (C20) can be detachably inserted into the first insertion space (C14). The heater holder (C20) can provide a second insertion space (C24) therein. The second insertion space (C24) can be opened upward. The second insertion space (C24) can have a cylindrical shape. The second insertion space (C24) can be defined by a pipe (C20') of the heater holder (C20). The pipe (C20') can include a side wall (C21) surrounding the periphery of the second insertion space (C24) and a bottom wall (C22) covering the bottom of the second insertion space (C24). The bottom wall (C22) of the pipe (C20') can be named a bottom (C22) or a mount (C22). The lower wall (C22) of the pipe (C20') can form the bottom (C22) of the heater holder (C20). The heater (C50) can be coupled or fixed to the heater holder (C20). The pipe (C20') can be named a heater holder pipe (C20').

The extractor (C30) can be detachably inserted into the second insertion space (C24). The extractor (C30) can provide a third insertion space (C34) therein. The third insertion space (C34) can be opened to one side. The third insertion space (C34) can have a cylindrical shape. The third insertion space (C34) can be defined by a side wall (C31) and a lower wall (C32) of the extractor (C30). The outer surface of the extractor (C30) can have a cylindrical shape.

The lower end of the stick (S) is inserted into the third insertion space (C34), and the upper end of the stick (S) can protrude outside the aerosol generating device. The heater (C50) can heat the first insertion space (C14), the second insertion space (C24), and the third insertion space (C34). The heater (C50) can heat the stick (S) inserted into the third insertion space (C34).

Accordingly, the heater (C50) can be easily replaced. The sizes of the heaters (C50) placed in the insertion spaces (C14, C24, C34) and the insertion spaces (C14, C24, C34) are very small, so replacement may be difficult. However, the user can easily replace the heater (C50) by separating the heater holder (C20) from the aerosol generating device and placing a new heater holder (C20) in the aerosol generating device.

In addition, foreign substances generated from the stick (S) do not remain around the heater (C50) and the heater holder (C20), but can be extracted through the extractor (C30). Accordingly, cleaning of the aerosol generating device around the heater (C50) becomes easy, and convenience of management can be improved. In addition, factors that reduce the performance of the heater (C50) can be reduced, and the durability of the heater (C50) can be improved, thereby extending the replacement cycle of the heater (C50). In addition, factors that alter the taste of the stick (S) can be reduced.

The lower end of the heater (C50) may be fixed to the mount (C22). The heater (C50) may be extended long toward the opening of the second insertion space (C24). The heater (C50) may be formed in a cylindrical shape, and the upper end may be pointed upward. As another example, the heater (C50) may have a shape extending in a circumferential direction and may be coupled to the side wall (C21) of the heater holder (C20). However, this is only an example, and the shape of the heater (C50) is not limited to that described above or illustrated, and may be coupled to the heater holder (C20) so as to heat the stick (S) inserted into the third insertion space (C34).

The heater holder (C20) can be formed by insert injection into the heater (C50). The heater holder (C20) can have high heat resistance and excellent rigidity. For example, the heater holder (C20) can be formed of polyetheretherketone (PEEK). However, the material of the heater holder (C20) is not limited thereto.

The through hole (C35) can be formed by opening the lower wall (C32) of the extractor (C30). The through hole (C35) can be opened upwardly and downwardly. When the extractor (C30) is inserted into the second insertion space (C24), the heater (C50) can penetrate the through hole (C35) and protrude into the third insertion space (C34). When the stick (S) is inserted into the third insertion space (C34), the heater (C50) can be inserted into the lower part of the stick (S).

The induction coil (C15) can surround the first insertion space (C14). The induction coil (C15) can be wound around the side wall (C111) of the body pipe (C11). The induction coil (C15) can surround the heater (C50). The induction coil (C15) can heat the heater (C50). As another example, the heater (C50) can be directly electrically connected to a power supply source through a terminal formed in the heater holder (C20) to receive power and generate heat.

Accordingly, the stick (S) can be easily separated from the heater (C50). The user can easily separate the stick (S) from the heater (C50) by separating the extractor (C30) and the heater holder (C20) from each other. The stick (S) inserted into the interior of the extractor (C30) can be more easily separated from the extractor (C30) by separating it from the heater (C50). The stick (S) can be separated even when the extractor (C30) and the heater holder (C20) are not separated from each other.

In addition, foreign substances generated from the stick (S) do not remain around the heater (C50) and the heater holder (C20), but can be extracted through the extractor (C30). Accordingly, cleaning of the aerosol generating device around the heater (C50) becomes easy, and convenience of management can be improved. In addition, factors that reduce the performance of the heater (C50) can be reduced, and the durability of the heater (C50) can be improved, thereby extending the replacement cycle of the heater (C50). In addition, factors that alter the taste of the stick (S) can be reduced.

The heater holder (C20) may be placed between the body (C10) and the extractor (C30). The side wall (C111) of the body pipe (C11) may surround the side wall (C21) of the heater holder (C20). The lower wall (C112) of the body pipe (C11) may face the lower wall (C22) of the heater holder (C20). The side wall (C21) of the heater holder (C20) may surround the side wall (C31) of the extractor (C30). The lower wall (C22) of the heater holder (C20) may face the lower wall (C32) of the extractor (C30).

The side wall (C31) of the extractor (C30) can be spaced inwardly from the side wall (C21) of the heater holder (C20). The lower wall (C32) of the extractor (C30) can be spaced upwardly from the lower wall (C22) of the heater holder (C20). Air can flow between the extractor (C30) and the heater holder (C20), pass through the through hole (C35), and then be provided to the stick (S) inserted into the third insertion space (C34).

An upper wall (C12) of the body (C10) may extend outwardly in a horizontal direction from an upper end of the body pipe (C11). The upper wall (C12) of the body (C10) may cover an upper end of an induction coil (C15). An outer lateral wall (C13) of the body (C10) may extend downwardly from an outer end of the upper wall (C12) of the body (C10). The outer lateral wall (C13) of the body (C10) may face a side wall (C111) of the body pipe (C11). The outer lateral wall (C13) of the body (C10) may be spaced outwardly from the body pipe (C11). The induction coil (C15) may be arranged between the body pipe (C11) and the outer lateral wall (C13) of the body (C10).

The upper case (C40) can be detachably coupled to the body (C10). The upper case (C40) can be coupled to the upper side of the body (C10). The upper case (C40) can cover the periphery of the first insertion space (C14) and the upper periphery of the body (C10). The upper case (C40) can have an insertion port (C44). The stick (S) can be inserted into the insertion port (C44). The upper case (C40) can include a cap (C45) for opening and closing the insertion port (C44). The cap (C45) can slide laterally to open and close the insertion port (C44). The heater holder (C20) can be arranged between the body (C10) and the upper case (C40).

The upper case (C40) may include an upper case body (C41). The insertion hole (C44) may be formed by the upper case body (C41) being opened upward and downward. The insertion hole (C44) may be formed at a position that is offset to one side from the center of the upper case body (C41). The lower surface of the upper case body (C41) may have a shape corresponding to the upper wall (C12) of the body (C10). The lower surface of the upper case body (C41) may extend horizontally in parallel with the upper wall (C12) of the body (C10). The cap (C45) may be installed so as to be slidable on the upper surface of the upper case body (C41).

The upper case (C40) may include an upper case wing (C42). The upper case wing (C42) may extend downward from both sides of the upper case body (C41). A part of the side portion of the upper case body (C41) may be exposed between the pair of upper case wings (C42). The upper case wing (C42) may be referred to as an upper case grip (C42).

The extractor (C30) can be coupled to the upper case (C40). The upper end of the extractor (C30) is coupled to the upper case (C40), and the lower end of the extractor (C30) can protrude downward from the upper case (C40). The extractor (C30) can be coupled to a position corresponding to the insertion port (C44). The insertion port (C44) can be located above the third insertion space (C34). The insertion port (C44) can communicate the third insertion space (C34) with the outside of the aerosol generating device.

The upper end of the extractor (C30) can be coupled to the upper case body (C41). The extractor (C30) can extend downward from the upper case body (C41). The extractor (C30) can be placed between a pair of upper case wings (C42).

The body (C10) may include a body wing (C16). The body wing (C16) may extend upward from an edge of an upper wall (C12) of the body (C10). The body wings (C16) may be formed as a pair facing each other with the upper portion of the body (C10) as the center. The body wings (C16) may be formed at a position misaligned with the upper case wing (C42).

When the upper case (C40) is coupled to the body (C10), the upper case (C40) can form an upper outer surface of the aerosol generating device. When the upper case (C40) is coupled to the body (C10), the body wing (C16) can cover a side portion of the upper case body (C41) exposed between the upper case wings (C42). When the upper case (C40) is coupled to the body (C10), the upper case wing (C42) can cover an outer wall (C13) of the body (C10).

Accordingly, the user can more easily separate the extractor (C30) from the body (C10). The user can separate the extractor (C30) inserted into the second insertion space (C24) without the inconvenience of gripping the extractor (C30) by holding the outer surface of the upper case (C40) and separating it from the body (C10). For example, the user can easily separate the upper case (C40) and the extractor (C30) from the body (C10) by holding a pair of upper case wings (C42) and pulling them from the body (C10).

The extractor (C30) may be provided with a catch (C37). The catch (C37) may protrude outwardly in a horizontal direction from the upper outer surface of the extractor (C30). The catch (C37) may be provided in multiple numbers. The multiple catch (C26) may be arranged spaced apart from each other in the circumferential direction. The catch (C37) may be inserted into and caught in a groove formed in the upper case body (C41) around the insertion port (C44), thereby fixing the extractor (C30) to the upper case (C40). The catch (C37) may be circumferentially engaged with the upper case body (C41).

Accordingly, during the insertion and separation process of the stick (S), the extractor (C30) can be prevented from rotating in the circumferential direction with respect to the upper case (C40).

The heater holder (C20) may include an extension (C23). The extension (C23) may be formed at the upper end of the heater holder (C20). The extension (C23) may extend outwardly in a horizontal direction from the upper end of the pipe (C20'). The extension (C23) may have a plate shape. The extension (C23) may be formed such that one side is longer with respect to the pipe (C20'). The extension (C23) may be named a heater holder extension (C23).

The extension (C23) may have a shape corresponding to the upper wall (C12) of the body (C10). The extension (C23) may be formed horizontally on the upper wall (C12) of the body (C10). When the pipe (C20') is inserted into the first insertion space (C14), the extension (C23) may be supported or settled on the upper wall (C12) of the body (C10). The upper wall (C12) of the body (C10) may support the extension, and the extension (C23) may support the pipe (C20'). The pipe (C20') may be suspended from the extension (C23) and spaced upward from the bottom (C112) of the body pipe (C11) to form an air gap. The outer surface of the pipe (C20') can be spaced inward from the side wall (C111) of the body pipe (C11) to form an air gap.

The extension (C23) may have a shape corresponding to the lower surface of the upper case body (C41). The extension (C23) may be formed horizontally on the lower surface of the upper case body (C41). When the upper case (C40) is coupled to the body (C10) and the extractor (C30) is inserted into the inside of the pipe (C20'), the extension (C23) may come into contact with the lower surface of the upper case body (C41).

The first coupling member (C27) can be fixed to the heater holder (C20). For example, the first coupling member (C27) can be fixed to the extension member (C23). The first coupling member (C27) can be fixed to the inner or outer surface of the extension member (C23). The heater holder (C20) can be insert-molded into the first coupling member (C27) and the heater (C50).

The extension portion (C23) may include a first extension portion (C231) and a second extension portion (C232). The first extension portion (C231) may extend from the pipe (C20') to one side, and the second extension portion (C232) may extend from the pipe (C20') to the other side. The first extension portion (C231) may extend longer than the second extension portion (C232). The circumference of the first extension portion (C231) may be larger than the circumference of the second extension portion (C232). The first extension portion (C231) may be formed to be wider in the horizontal direction than the second extension portion (C232). With respect to a pipe (C20') extending downward from a plate-shaped extension (C23), one side may be defined as a first extension (C231) and the other side may be defined as a second extension (C232). The pipe (C20') may extend downward from a portion that is offset to one side from the center of the extension (C23).

The first coupling member (C27) may be fixed to a first extension member (C231) that is extended longer on one side from the pipe (C20') among the extension members (C23). The first coupling member (C27) may have a plate shape. The first coupling member (C27) may be widely arranged in a horizontal direction on the first extension member (C23). The position at which the first coupling member (C27) is arranged is not limited thereto. For example, the first coupling member (C27) may be fixed to the pipe (C20').

The first joining member (C27) may be formed of a magnetic material. The first joining member (C27) may be a ferromagnetic material. For example, the first joining member (C27) may be formed of stainless steel. However, the material of the first joining member (C27) is not limited thereto.

The second coupling member (C47) may be fixed to the upper case (C40). The second coupling member (C47) may be fixed to the inside of the upper case body (C41). The second coupling member (C47) may be adjacent to the lower surface of the upper case body (C41). However, the position at which the second coupling member (C47) is arranged is not limited thereto. For example, the second coupling member (C47) may be fixed to the upper case wing (C42). As another example, the second coupling member (C47) may be fixed to the extractor (C30). The second coupling member (C47) may be arranged at a position corresponding to the first coupling member (C27).

The second coupling member (C47) can exert an attractive force on the first coupling member (C27). For example, the first coupling member (C27) can be a ferromagnetic material, and the second coupling member (C47) can be a magnet. However, the materials of the first coupling member (C27) and the second coupling member (C47) are not limited thereto.

The third coupling member (C17) may be fixed to the inside of the body (C10). The third coupling member (C17) may be adjacent to the upper wall (C12) of the body (C10). The third coupling member (C17) may be arranged at a position corresponding to the first coupling member (C27). However, the position at which the third coupling member (C17) is arranged is not limited thereto. For example, the third coupling member (C17) may be adjacent to the side wall (C111) of the body pipe (C11). The third coupling member (C17) may exert an attractive force with the first coupling member (C27). For example, the first coupling member (C27) may be a ferromagnetic material, and the third coupling member (C17) may be a magnet. However, the materials of the first joining member (C27) and the third joining member (C17) are not limited thereto.

The outer surface of the side wall (C21) of the pipe (C20') can form a plurality of angles in the circumferential direction. The cross-section of the outer surface of the side wall (C21) of the pipe (C20') can be a polygon. The outer surface of the side wall (C21) of the pipe (C20') can be formed of a plurality of surfaces that are each extended vertically and arranged to form angles along the circumferential direction. The outer surface of the pipe (C20') can be spaced inwardly from the side wall (C111) of the body pipe (C11) to form an air gap. The heater (C50) can be surrounded by the extractor (C30) and the pipe (C20'). The extractor (C30) and the pipe (C20') can be spaced apart to form an air gap.

Accordingly, the amount of heat generated from the heater (C50) transferred to the body pipe (C11) through the pipe (C20') can be reduced, thereby reducing the phenomenon of the aerosol generating device being overheated.

The upper case (C40) can be separated from the body (C10). The heater holder (C20) can be detachably coupled to the upper case (C40). When the upper case (C40) is separated from the body (C10), the heater holder (C20) can be separated from the body (C10) together with the upper case (C40) while being coupled to the upper case (C40). While the upper case (C40) to which the heater holder (C20) is coupled is separated from the body (C10), the heater holder (C20) can be separated from the upper case (C40).

As another example, the heater holder (C20) may be detachably coupled to the extractor (C30). When separated from the extractor (C30) and the body, the heater holder (C20) may be coupled with the extractor (C30) and separated from the body (C10) together with the extractor (C30). When the extractor (C30) to which the heater holder (C20) is coupled is separated from the body (C10), the heater holder (C20) may be separated from the extractor (C30).

The first coupling member (C27) and the second coupling member (C47) can exert an attractive force on each other. The first coupling member (C27) and the second coupling member (C47) can detachably couple the heater holder (C20) to the upper case (C40) and/or the extractor (C30). For example, the first coupling member (C27) and the second coupling member (C47) can be magnets that exert an attractive force on each other. As another example, one of the first coupling member (C27) and the second coupling member (C47) can be a ferromagnetic body and the other can be a magnet. However, without being limited to the above, the first coupling member (C27) and the second coupling member (C47) may have a configuration that exerts an attractive force on each other through an electric force or a magnetic force.

The extension portion (C23) can form a horizontal surface corresponding to the lower surface of the upper case body (C41). The first extension portion (C231) can form a horizontal surface corresponding to the lower surface of the upper case body (C41). The upper surface of the extension portion (C23) can be supported horizontally to the upper case body (C41). The first extension portion (C231) can have a larger area supported on the upper case body (C41) than the second extension portion (C232).

The first connecting member (C27) may have a plate shape. The first connecting member (C47) may be horizontally fixed to the first extension portion (C231). The second connecting member (C47) may be arranged adjacent to the lower surface of the upper case body (C41). The second connecting member (C47) may be formed at a position corresponding to the first connecting member (C27). By the attractive force between the first connecting member (C27) and the second connecting member (C47), the first extension portion (C231) may come into contact with the lower surface of the upper case body (C41).

As another example, the heater holder (C20) may be detachably coupled to the upper case (C40) by a screw coupling method. At this time, the heater holder (C20) may be rotated in the circumferential direction to be detached or coupled to the upper case (C40) by a screw coupling method. Alternatively, the heater holder (C20) and the upper case (C40) may be detachably coupled using a fastening screw. As another example, the heater holder (C20) may be detachably coupled to the upper case (C40) by a snap-fit coupling method. At this time, one of the heater holder (C20) and the upper case (C40) may be provided with a coupling hook, and the other may be provided with a groove into which the hook is coupled. This is only an example, and the manner in which the heater holder (C20) is detachably connected to the upper case (C40) is not limited to what has been described above, and the heater holder (C20) can be detachably connected to the upper case (C40) in various known ways.

The heater holder (C20) coupled to the upper case (C40) can protrude downwardly from the upper case (C40). The heater holder (C20) can be arranged between a pair of upper case wings (C42). The pipe (C20') can protrude downwardly further from the upper case body (C41) than the upper case wings (C42). Accordingly, the heater holder (C20) can be easily held.

Accordingly, the heater holder (C20) can be easily separated from the upper case (C40) while being stably attached to the upper case (C40). In addition, the heater (C50) can be conveniently replaced.

In addition, the stick (S) can be easily separated from the heater (C50). The user can easily separate the stick (S) from the heater (C50) by separating the extractor (C30) and the heater holder (C20) from each other. The stick (S) inserted into the inside of the extractor (C30) can be more easily separated from the extractor (C30) by separating it from the heater (C50).

The heater holder (C20) can be detachably coupled to the body (C10). While the heater holder (C20) is coupled to the body (C10), the upper case (C40) and/or the extractor (C30) can be separated from the body (C10) and the heater holder (C20). While the upper case (C40) and/or the extractor (C30) are separated from the body (C10) and the heater holder (C20), the heater holder (C20) can be separated from the body (C10).

The first coupling member (C27) and the third coupling member (C17) can exert an attractive force on each other. The first coupling member (C27) and the third coupling member (C17) can detachably couple the heater holder (C20) to the body (C10). For example, the first coupling member (C27) and the third coupling member (C17) may be magnets that exert an attractive force on each other. As another example, one of the first coupling member (C27) and the third coupling member (C17) may be a ferromagnetic body and the other may be a magnet. However, without being limited to the above, the first coupling member (C27) and the third coupling member (C17) may have a configuration that exerts an attractive force on each other through an electric force or a magnetic force.

The extension (C23) covers the upper wall (C12) of the body (C10), and the pipe (C20') can be inserted into the first insertion space (C14). The extension (C23) can form a horizontal surface corresponding to the upper wall (C12) of the body (C10). The first extension (C231) can correspond to one upper wall (C12) of the body (C10), and the second extension (C232) can correspond to the other upper wall (C12) of the body (C10). The lower surface of the extension (C23) can be supported horizontally on the upper wall (C12) of the body (C10). The first extension (C231) can have a larger area supported on the body (C10) than the second extension (C232).

The first coupling member (C27) may have a plate shape. The first coupling member (C47) may be horizontally fixed to the first extension portion (C231). The third coupling member (C17) may be arranged adjacent to the upper wall (C12) of the body (C10). The third coupling member (C17) may be formed at a position corresponding to the first coupling member (C27). The first coupling member (C27) may be arranged at the first extension portion (C231), and the third coupling member (C17) may be arranged adjacent to one upper wall (C12) of the body (C10) covered by the first extension portion (C231). By the attractive force between the first connecting member (C27) and the third connecting member (C47), the first extension member (C231) can come into contact with the upper wall (C12) of the body (C10).

As another example, the heater holder (C20) may be detachably coupled to the body (C10) by a screw coupling method. At this time, the heater holder (C20) may be rotated in the circumferential direction to be detached or coupled to the body (C10) by a screw coupling method. Alternatively, the heater holder (C20) and the body (C10) may be detachably coupled using a fastening screw. As another example, the heater holder (C20) may be detachably coupled to the body (C10) by a snap-fit coupling method. At this time, one of the heater holder (C20) and the body (C10) may be provided with a coupling hook, and the other may be provided with a groove into which the hook is coupled. This is merely an example, and the manner in which the heater holder (C20) is detachably coupled to the body (C10) is not limited to what has been described above, and the heater holder (C20) may be detachably coupled to the body (C10) by various known methods.

The extension (C23) coupled to the body (C10) can be exposed upward from the body (C10). The extension (C23) can be arranged between a pair of body wings (C16). The extension (C23) can be arranged between a pair of body wings (C16), adjacent to an outer lateral wall (C13) of the body (C10), or in a position vertically parallel to the outer lateral wall (C13). Accordingly, the heater holder (C20) can be easily held.

Accordingly, the heater holder (C20) can be easily separated from the body (C10) while being stably attached to the body (C10). In addition, the heater (C50) can be conveniently replaced.

In addition, the stick (S) can be easily separated from the heater (C50). The user can easily separate the stick (S) from the heater (C50) by separating the extractor (C30) and the heater holder (C20) from each other. The stick (S) inserted into the inside of the extractor (C30) can be more easily separated from the extractor (C30) by separating it from the heater (C50).

Referring to FIG. 11, the first coupling member (C27) may be arranged between the second coupling member (C47) and the third coupling member (C17). The first coupling member (C27) and the second coupling member (C47) may exert an attractive force on each other, and the first coupling member (C27) and the third coupling member (C17) may exert an attractive force on each other. For example, each of the second coupling member (C47) and the third coupling member (C17) may be a magnet, and the first coupling member (C27) may be a magnet that exerts an attractive force on each of the second coupling member (C47) and the third coupling member (C17) between the first coupling member (C47) and the third coupling member (C17). As another example, the first coupling member (C27) may be a ferromagnetic material, and each of the second coupling member (C47) and the third coupling member (C17) may be a magnet. However, without being limited to the above, the first coupling member (C27) may be configured to exert an attractive force on each of the second coupling member (C47) and the third coupling member (C17) through an electric force or a magnetic force.

Accordingly, the user can selectively attach the heater holder (C20) to either the body (C10) or the extractor (C30) side while separating the upper case (C40) and/or the extractor (C30) from the body (C10). In addition, the upper case (C40) and/or the extractor (C30) can be attached to the body (C10) more easily and stably.

The attractive force between the first connecting member (C27) and the second connecting member (C47) and the attractive force between the first connecting member (C27) and the third connecting member (C17) may be different from each other. For example, the attractive force between the first connecting member (C27) and the second connecting member (C47) may be greater than the attractive force between the first connecting member (C27) and the third connecting member (C17).

Accordingly, when the upper case (C40) and/or the extractor (C30) are separated from the body (C10), the heater holder (C20) can be separated from the body (C10) together. In addition, when the upper case (C40) and/or the extractor (C30) are coupled to the body (C10) while the heater holder (C20) is coupled to the upper case (C40) and/or the extractor (C30), the upper case (C40) can be more easily coupled to the body (C10) by the attractive force between the first coupling member (C27) and the third coupling member (C17), and a more stable coupling state can be maintained.

As another example, the attractive force between the first coupling member (C27) and the second coupling member (C47) may be greater than the attractive force between the first coupling member (C27) and the third coupling member (C17). Accordingly, when the upper case (C40) and/or the extractor (C30) are separated from the body, the heater holder (C20) remains coupled to the body (C10), and the stick (S) can be detached from the heater (C50) and more easily separated from the extractor (C30).

Referring to FIG. 12, the guide portion (C25) may be formed on the upper inner surface of the pipe (C20'). The guide portion (C25) may be positioned between the pipe (C20') and the extension portion (C23). The guide portion (C25) may be in contact with the opening of the second insertion space (C24). The guide portion (C25) may be extended downwardly and inclined. The guide portion (C25) may be extended circumferentially to surround the opening of the second insertion space (C24).

Accordingly, the guide portion (C25) can contact the lower portion of the extractor (C30) to guide the extractor (C30) to be easily inserted into the second insertion space (C24).

The lower end of the heater (C50) may be inserted into and fixed to the mount (C22). The heater (C50) may include a heater rod (C51). The heater rod (C51) may form an outer appearance of the heater (C50). The heater rod (C51) may be extended vertically. The heater rod (C51) may have a cylindrical shape. The heater rod (C51) may have a hollow portion opened downward. The hollow portion may be extended vertically. The hollow portion inside the heater rod (C51) may be formed in a cylindrical shape. The upper end of the heater rod (C51) may be formed to be pointed upward. The heater rod (C51) may have high thermal expandability, excellent thermal insulation, and low thermal conductivity. The heater rod (C51) may have high rigidity. For example, the heater rod (C51) may be formed of zirconia. However, the material of the heater rod (C51) is not limited to this.

The heater (C50) may include a heating member (C52). The heating member (C52) may be inserted into a hollow portion inside the heater rod (C51). The heating member (C52) may be extended vertically. The heating member (C52) may be formed in a cylindrical shape. The heating member (C52) may be formed of a resistive metal. Heat generated from the heating member (C52) may be transferred to the outside of the heater (C50) through the heater rod (C51). The heating member (C52) may be arranged at a height corresponding to the third insertion space (C34) (see FIG. 6). The lower end of the heating member (C52) may be adjacent to the lower end of the through hole (C35).

The heater (C50) may include a support (C53). The support (C53) may be inserted into the hollow of the heater rod (C51). The support (C53) may be arranged on the lower side of the heating part (C52). The support (C53) may be fixed to the heater rod (C51) in the hollow. The support (C53) may support the lower part of the heating part (C52). The lower end of the support (C53) may be supported by the bottom (C22a) of the mount (C22). The hole (C22c) formed in the center of the mount (C22) may be formed by a process of insert-molding the heater holder (C20). The width of the hole (C22c) may be formed smaller than the width of the support (C53) to prevent the support (C53) from being detached. The hole (C22c) may be absent. The support (C53) may have high heat resistance. The support (C53) may not be thermally deformed due to heat generation from the heating part (C52). The support (C53) may be formed of polyamide. However, the material of the support (C53) is not limited thereto.

The heater (C50) may include a flange (C55). The flange (C55) may be formed at the lower end of the heater rod (C51). The flange (C55) may extend outwardly in a horizontal direction from an outer surface of the lower end of the heater rod (C51). The flange (C55) may extend in a circumferential direction of the heater rod (C51). The lower end of the heater rod (C51) and the flange (C55) may be inserted into a mount (C22). The mount (C22) may be integrally connected to the flange (C55) by insert-molding the heater holder (C20) into the heater (C50).

The cross-section of the outer surface of the flange (C55) may have a non-circular shape. The inner surface of the mount (C22) may have a shape corresponding to the outer surface of the flange (C55). The inner surface of the mount (C22) and the outer surface of the flange (C55) may be interlocked with each other in the circumferential direction. Accordingly, when the stick (S) is separated or inserted into the heater (C50), the heater (C50) can be prevented from rotating in the circumferential direction with respect to the heater holder (C20).

The flange (C55) may include a first engaging portion (C55a). The first engaging portion (C55a) may protrude outwardly from the periphery of the flange (C55). The first engaging portion (C55a) may be formed at the lower portion of the flange (C55). The first engaging portion (C55a) may extend along the periphery of the flange (C55).

The mount (C22) may include a second catch (C22b). The second catch (C22b) may protrude inwardly toward the groove of the mount (C22). The second catch (C22b) may have a shape corresponding to the first catch (C55a). The first catch (C55a) may be located below the second catch (C22b). The first catch (C55a) and the second catch (C22b) may overlap vertically. The second catch (C22a) may support the first catch (C55a) to prevent the flange (C55) from being separated upwardly from the mount (C22).

The extension portion (C23) may be extended longer on one side with respect to the pipe (C20') or the second insertion space (C24). With respect to the one-side horizontal direction, the length (L1) of the first extension portion (C231) may be greater than the length (L2) of the second extension portion (C232). The length (L1) of the first extension portion (C231) may be greater than the diameter (L0) of the second insertion space (C24). Alternatively, the length (L1) of the first extension portion (C231) may be closer to the diameter (L0) of the second insertion space (C24) than the length (L2) of the second extension portion (C232). The first coupling member (C47) may have a plate shape. The first coupling member (C47) may be horizontally fixed to the first extension portion (C23).

FIG. 13 is an exploded perspective view of an upper case, a body, and a heater holder of an aerosol generating device according to another embodiment of the present disclosure, and FIG. 14 is a combined cross-sectional view of an upper case, a body, and a heater holder of an aerosol generating device according to another embodiment of the present disclosure.

Referring to FIG. 13, the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can together define a fourth insertion space (C340, see FIG. 13) that is opened upward. Each of the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can cover at least one side of the fourth insertion space (C340). The side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can together form a side perimeter of the fourth insertion space (C340).

The side wall (C210) of the heater holder (C200) can be extended vertically. The side wall (C310) of the extractor (C300) can be extended vertically. The side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can be spaced apart from the center of the fourth insertion space (C340) by the same distance in the radial direction. The side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can be positioned on the same peripheral extension line of the fourth insertion space (C340). Each of the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can be curved and extended circumferentially along the perimeter of the fourth insertion space (C340).

For example, the side walls (C210) of the heater holder (C200) may be arranged in multiples along the perimeter of the lower wall (C22) of the heater holder (C200). Between each of the multiple side walls (C210) of the heater holder (C200), a first slit (C214) that is opened upward and extends vertically may be formed. The multiple side walls (C210) and the multiple first slits (C214) of the heater holder (C200) may be arranged alternately in the circumferential direction along the perimeter of the fourth insertion space (C340).

For example, the side walls (C210) of the heater holder (C200) may be formed in two pieces, and may be formed to face each other with the fourth insertion space (C340) as the center. Between the two side walls (C210) of the heater holder (C200), two first slits (C214) may be formed to face each other with the fourth insertion space (C340) as the center. However, the number of the side walls (C210) and the first slits (C214) of the heater holder (C200) is not limited thereto, and may be single or three or more.

For example, the side walls (C310) of the extractor (C300) may be arranged in multiples along the periphery of the lower wall (C32) of the extractor (C300). A second slit (C314) extending vertically may be formed between each of the multiple side walls (C310) of the extractor (C300). The multiple side walls (C310) and the multiple second slits (C314) of the extractor (C300) may be arranged alternately in the circumferential direction along the periphery of the fourth insertion space (C340).

For example, the side walls (C310) of the extractor (C300) may be formed in two pieces, and may be formed to face each other with the fourth insertion space (C340) as the center. Between the two side walls (C310) of the extractor (C300), two second slits (C314) may be formed to face each other with the fourth insertion space (C340) as the center. However, the number of the side walls (C310) and the second slits (C314) of the extractor (C300) is not limited thereto, and may be single or three or more.

The extractor (C300) can be inserted into the inside of the heater holder (C200). When the extractor (C300) is inserted into the inside of the heater holder (C200), the side wall (C210) of the heater holder (C200) can be placed in the second slit (C314), and the side wall (C310) of the extractor (C300) can be placed in the first slit (C214).

Accordingly, the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can form a fourth insertion space (C340). In addition, by reducing the thickness of the wall between the induction coil (C15) and the heater (C50), the heat generation efficiency of the heater (C50) can be improved.

The lower wall (C32) of the extractor (C300) can cover the lower part of the fourth insertion space (C340). The lower wall (C22) of the heater holder (C200) is arranged on the lower side of the lower wall (C32) of the extractor (C300) and can cover the lower side of the lower wall (C32) of the extractor (C300). The heater (C50) fixed to the lower wall (C22) of the heater holder (C200) and protruding can penetrate the through hole (C35) formed in the lower wall (C32) of the extractor (C300) and be exposed to the fourth insertion space (C340).

The lower wall (C22) of the heater holder (C200) may be spaced upwardly from the lower wall (C112) of the body pipe (C11). An air gap may be formed between the lower wall (C22) of the heater holder (C200) and the lower wall (C112) of the body pipe (C11). The lower wall (C32) of the extractor (C300) may be spaced upwardly from the lower wall (C22) of the heater holder (C200). An air gap may be formed between the lower wall (C32) of the extractor (C300) and the lower wall (C22) of the heater holder (C200). Some of the heat generated from the heater (C50) may be transferred from the lower wall (C22) of the heater holder (C200) to the side wall (C210) and then to the lower wall (C112) and the side wall (C111) of the body pipe (C11), and the heat may be dispersed. In addition, some of the heat generated from the heater (C50) may be dispersed through the air gap formed between the heater holder (C200) and the extractor (C300) around the heater (C50).

Accordingly, the amount of heat generated from the heater (C50) that is conducted to components inside the aerosol generating device can be reduced, and failure of the aerosol generating device can be prevented. In addition, the amount of heat generated from the heater (C50) that is conducted to the outside of the aerosol generating device can be reduced, thereby reducing the phenomenon of heat being transferred to the user.

The side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can be radially engaged. The side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can support each other in the direction inside and outside the radius.

Accordingly, the heater holder (C200) and the extractor (C300) can be stably positioned without being misaligned or shaking in the radial direction.

For example, each of the side walls (C210) of the heater holder (C200) may have a first recessed portion that is recessed circumferentially from both ends. Each of the side walls (C210) of the heater holder (C200) may protrude circumferentially more than the first recessed portion. The first recessed portion may be formed on the inner peripheral surface side of the side wall (C210) of the heater holder (C200), but may also be formed on the outer peripheral surface side. The end of the side wall (C210) of the heater holder (C200) may be referred to as a first protrusion portion.

Each of the side walls (C310) of the extractor (C300) may have a second recessed portion that is recessed circumferentially from both ends. Each of the side walls (C310) of the extractor (C300) may protrude circumferentially more than the second recessed portion. The second recessed portion may be formed on the outer peripheral surface side, but may also be formed on the inner peripheral surface side. The end of the side walls (C310) of the extractor (C300) may be referred to as a second protrusion portion.

The first recessed portion and the second protrusion may be positioned at positions corresponding to each other in the radial direction. The second protrusion may be arranged in the first recessed portion. The first protrusion and the second recessed portion may be positioned at positions corresponding to each other in the radial direction. The first protrusion may be arranged in the second recessed portion. The second protrusion may overlap the first protrusion in the radial direction.

Accordingly, the first protrusion and the second protrusion support each other radially, and the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) can be stably positioned relative to each other.

This form is only an example, and the form in which the side wall (C210) of the heater holder (C200) and the side wall (C310) of the extractor (C300) are radially interlocked is not limited thereto.

In this document, terms such as "substantially," "approximately," "typically," and "about" when referring to a given parameter, property, or condition may include the extent to which a person of ordinary skill in the art would understand the given parameter, property, or condition to be satisfied with a small degree of variance, such as within acceptable manufacturing tolerances. For example, a particular parameter that is substantially satisfied may be at least about 90% satisfied, at least about 95% satisfied, or at least 99% satisfied.

FIG. 15 is a perspective view of an aerosol generating article according to one embodiment. FIG. 16 is a cross-sectional view of an aerosol generating article according to one embodiment. FIG. 17 is a cross-sectional view of a portion of an aerosol generating article according to one embodiment.

Referring to FIGS. 15 to 17, the aerosol generating article (301) may include a first segment (302).

As used herein, "upstream" or "upstream direction" means away from the user's mouth, and "downstream" or "downstream direction" means toward the user's mouth. The terms upstream and downstream may be used to describe the relative positions of elements that make up an aerosol-generating article.

The first segment can comprise a medium (M). The medium (M) can have various shapes. For example, the medium (M) can comprise at least one of a sheet or a strand, or a combination thereof. The medium (M) can comprise a cut sheet. The medium (M) can comprise an aerosol generating material (e.g., tobacco). The medium (M) can comprise at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, or oleyl alcohol, or a combination thereof. The medium (M) can comprise a flavorant, a humectant, and/or an organic acid. The medium (M) can comprise a flavor. The medium (M) can comprise an aerosol generating material (e.g., tobacco), a humectant (e.g., glycerin), or a flavorant, or a combination thereof.

The aerosol generating article (301) may include a second segment (303). The second segment (303) may be positioned downstream of the first segment (302). The second segment (303) may be directly connected to the first segment (302). In an embodiment not shown, the aerosol generating article (301) may include an additional segment between the first segment (302) and the second segment (303).

The second segment (303) may include a filter (F). For example, the filter (F) may include a cellulose acetate filter. In an embodiment not shown, the second segment (303) may include a structure having a hollow tube shape. The structure may reduce or prevent a herniation phenomenon of the medium (M) and/or the heat source (310). The structure may be configured to cool the airflow passing through the second segment (303).

The aerosol generating article (301) may include a third segment (304). The third segment (304) may be positioned downstream of the second segment (303). The third segment (304) may be directly connected to the second segment (303). In an embodiment not shown, the aerosol generating article (301) may include an additional segment between the second segment (303) and the third segment (304).

The third segment (304) may be configured to cool the airflow passing through the third segment (304). The third segment (304) may be configured to cool the generated aerosol. For example, the third segment (304) may include a tube (P). The tube may vortex the airflow and absorb thermal energy.

The aerosol generating article (301) can include a fourth segment (305). The fourth segment (305) can include a filter comprising acetate tow. The fourth segment (305) can be positioned downstream of the third segment (304). The fourth segment (305) can be directly connected to the third segment (304). In an embodiment not shown, the aerosol generating article (301) can include an additional segment between the third segment (304) and the fourth segment (305).

The first segment (302) may include a heat source (310). The heat source (310) may be configured to generate heat by surface plasmon resonance (SPR). "Surface plasmon resonance" refers to a collective oscillation of electrons propagating along an interface of metal particles with a medium. For example, the collective oscillation of electrons of the metal particles may be generated by light propagating from outside the heat source (310). Excitation of the electrons of the metal particles generates thermal energy, and the generated thermal energy may be transferred within an environment to which the heat source (310) is applied.

Heat generated from the heat source (310) is transferred to the medium (M) and can cause the aerosol generating material to change phase into an aerosol.

The heat source (310) can include a substrate (311). The substrate (311) can include a first end (311A) disposed upstream of the first segment (302). The first end (311A) can be at least partially open. For example, the first end (311A) can include an opening (311A1). The substrate (311) can include a second end (311B) disposed downstream of the first segment (302). The second end (311B) can be positioned opposite the first end (311A). The second end (311B) can be a substantially closed surface or can include a substantially closed surface. The second end (311B) can substantially prevent light from passing through the second end (311B). The substrate (311) may include a side portion (311C) extending between a first end portion (311A) and a second end portion (311B). The first end portion (311A), the second end portion (311B), and the side portion (311C) may substantially define a cylindrical shape of the substrate (311). The cylindrical shape of the substrate (311) may allow heat generated from a heat source (310) to be evenly transferred to the medium (M).

The substrate (311) may include an outer surface (F1). At least a portion of the outer surface (F1) (e.g., an outer side surface) may at least partially face the medium (M). The substrate (311) may include an inner surface (F2). The inner surface (F2) may be positioned opposite the outer surface (F1). The inner surface (F2) may define a cavity (311D). The cavity (311D) may have a substantially cylindrical space.

The substrate (311) may be formed of various materials. For example, the substrate (311) may be formed of a metal material such as aluminum, glass, silicon (Si), silicon oxide (SiO ₂ ), sapphire, polystyrene, polymethyl methacrylate, and/or any other suitable material. The substrate (311) may be formed of any one of glass, silicon (Si), silicon oxide (SiO ₂ ), and sapphire, or a combination thereof. The substrate (311) may include a material having a relatively low heat transfer coefficient. This may allow heat to be transferred only to some areas on the substrate (311).

The substrate (311) may exhibit electrical conductivity. The substrate (311) may also exhibit electrical insulation.

The substrate (311) can be formed of a material having any thermal conductivity suitable for use in an environment in which the heat source (310) is placed. For example, the substrate (311) can have a thermal conductivity of about 0.6 W/mK or less, about 1 W/mK to about 2 W/mK, about 2 W/mK to about 5 W/mK, about 5 W/mK to about 10 W/mK, about 10 W/mK to about 100 W/mK, about 100 W/mK to about 200 W/mK at a pressure of 1 bar and a temperature of 25° C. The substrate (311) can have a thermal conductivity of about 0.6 W/mK or less, about 1.3 W/mK, about 148 W/mK, or about 46.06 W/mK at a pressure of 1 bar and a temperature of 25° C.

FIG. 18 is a drawing showing a cross-section of a part of a heat source according to one embodiment.

Referring to FIG. 18, the heat source (310) may include a metal layer (312) disposed on the inner surface (F2). Light entering the cavity (311D) may be transmitted to the metal layer (312). The metal layer (312) may include a plurality of metal particles. Electrons constituting each of the plurality of metal particles may collectively oscillate when receiving light. Excitation of the electrons may generate thermal energy. The plurality of metal particles may have a nano-scale size. For example, the plurality of metal particles may have an average maximum diameter of about 1 ㎛ or less. The plurality of metal particles may have an average maximum diameter of about 700 nm or less, about 600 nm or less, about 500 nm or less, about 400 nm or less, about 300 nm or less, about 200 nm or less, about 150 nm or less, or about 100 nm or less.

The plurality of metal particles can be formed of any material suitable for generating heat. For example, the plurality of metal particles can include at least one or a combination of gold, silver, copper, palladium, platinum, aluminum, titanium, nickel, chromium, iron, cobalt, manganese, rhodium, and ruthenium.

The plurality of metal particles can be formed of any material suitable for generating heat by interacting with light of a particular wavelength band (e.g., a visible light wavelength band, i.e., from about 380 nm to about 780 nm). For example, the plurality of metal particles can include at least one of gold, silver, copper, palladium, and platinum, or a combination thereof.

The plurality of metal particles can be formed of a metal material having an average maximum absorbance. Here, the average maximum absorbance can be defined as an absorbance having a peak substantially according to a specific wavelength band. The specific wavelength band corresponding to the absorbance can be understood as a wavelength band in which the plurality of metal particles resonate. For example, the plurality of metal particles can be formed of a metal material having an average maximum absorbance in a wavelength band of between about 310 nm and about 450 nm, between about 480 nm and about 500 nm, between about 490 nm and about 510 nm, between about 500 nm and about 520 nm, between about 550 nm and about 570 nm, between about 600 nm and about 620 nm, between about 620 nm and about 640 nm, between about 630 nm and about 650 nm, between about 640 nm and about 660 nm, between about 680 nm and about 700 nm, or between about 700 nm and about 750 nm. The average maximum absorbance of the plurality of metal particles may depend on the type of the substrate (311), the size of the metal layer (312), and/or the shape of the metal layer (312) in addition to the metal material.

The metal layer (312) may be about 10 nm or less. If the metal layer (312) has a thickness exceeding 10 nm, it may reduce the exothermic reaction of the plurality of metal particles forming the metal layer (312), and consequently reduce the thermal efficiency of the heat source (310).

The heat source (310) may include an absorption layer (313) configured to absorb light. The absorption layer (313) may be configured to absorb light that transmits through the substrate (311) in a direction from the inner surface (F2) of the substrate (311) toward the outer surface (F1). The absorption layer (313) may increase the light utilization efficiency of the heat source (310). The absorption layer (313) may be disposed on or over the outer surface (F1). The absorption layer (313) may be disposed substantially over the entire area of the outer surface (F1). The absorption layer (313) may also be disposed on a local area of the outer surface (F1) (e.g., the outer side surface). The absorption layer (313) may be attached to the outer surface (F1). The absorption layer (313) may include a material having a color having a relatively high saturation (e.g., black). For example, the absorption layer (313) may have a heat resistance of about 800 degrees Celsius.

The heat source (310) may include a reflective layer (314). The reflective layer (314) may be configured to reflect light transmitting through the substrate (311) in a direction from the inner surface (F2) of the substrate (311) toward the outer surface (F1) toward the inner surface (F2). The reflective layer (314) may be disposed on the absorbing layer (313). In an embodiment not shown, the reflective layer (314) may be spaced apart from the absorbing layer (313) by a gap. The reflective layer (314) may be disposed substantially over the entire area of the absorbing layer (313). The reflective layer (314) may also be disposed in a localized area of the absorbing layer (313). The reflective layer (314) may include any material suitable for reflecting light. For example, the reflective layer (314) may include at least one or a combination of gold, silver, copper, or any other metal material suitable for reflection. The reflective layer (314) may have any thickness suitable for reflecting light. For example, the thickness of the reflective layer (314) may be about 10 nm or less.

The heat source (310) may include a heat transfer agent (315). The heat transfer agent (315) may be configured to transfer heat generated by surface plasmon resonance to the medium (M). The heat transfer agent (315) may transfer heat in a conductive manner. In an embodiment not shown, a gap may be formed between the heat transfer agent (315) and the medium (M), and the heat transfer agent (315) may transfer heat to the medium (M) in a convective or radiative manner. The heat transfer agent (315) may include a metal material. For example, the heat transfer agent (315) may include aluminum or copper.

FIG. 19 is a drawing showing a cross-section of a part of a heat source according to one embodiment.

Referring to FIG. 19, the aerosol generating article (301-1) may include a heat source (310-1). The heat source (310-1) may include a substrate (311). The heat source (310) may include a metal layer (312) disposed on an inner surface (F2). Light entering the cavity (311D) may be transmitted to the metal layer (312). The heat source (310) may include an absorption layer (313). The absorption layer (313) may be attached on an outer surface (F1). The heat source (310) may not include a reflective layer (314).

FIG. 20 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

Referring to FIG. 20, the aerosol generating article (301-2) may include a first segment (302-2) and a second segment (303). The first segment (302-2) may include a medium (M) and a heat source (310-2). The heat source (310-2) may include a substrate (311-2). The substrate (311-2) may include a first end (311A), an outer surface (F1-2), and an inner surface (F2-2). The first end (311A) of the substrate (311-2) may include an opening (311A1).

The inner surface (F2-2) of the substrate (311-2) may include a curved surface. The inner surface (F2-2) may define a cavity (311D-2). For example, the inner surface (F2-2) may define a cavity (311D-2) having a substantially hemispherical shape. The inner surface (F2-2) may be substantially continuous over the entire area. Some areas of the inner surface (F2-2) may be discontinuous with other areas. The inner surface (F2-2) may have a radius of curvature (R) that is substantially constant over the entire area. The radius of curvature (R) of some areas of the inner surface (F2-2) may be different from the radius of curvature (R) of other areas.

The outer surface (F1-2) of the substrate (311-2) may include a curved surface. The outer surface (F1-2) may be substantially parallel to the inner surface (F2-2). Some areas of the outer surface (F1-2) may not be parallel to some areas of the inner surface (F2-2) that the areas face. In an embodiment not shown, at least some areas of the outer surface (F1-2) may be substantially flat.

The substrate (311-2) may be implemented as a three-dimensional solid that can be expressed in terms of an azimuth angle and an altitude angle. For example, the substrate (311-2) may include a dome-shaped solid. For example, the substrate (311-2) may be implemented as a three-dimensional solid having an azimuth angle of substantially 360 degrees and an altitude angle in the range of about -60 degrees to 90 degrees.

The dome shape of the substrate (311-2) can enable heat generated from the heat source (310) to be evenly transferred to the medium (M).

FIG. 21 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

Referring to FIG. 21, the aerosol generating article (301-3) may include a first segment (302-3) and a second segment (303). The first segment (302-3) may include a medium (M) and a heat source (310-3). The heat source (310-3) may include a substrate (311-3). The substrate (311-3) may include a first end (311A), an outer surface (F1-3), and an inner surface (F2-3). The first end (311A) of the substrate (311-2) may include an opening (311A1).

The substrate (311-3) can include a side portion (311C-3) extending downstream from the first end portion (311A). An inner surface (F2-3) of the substrate (311-3) can include a curved surface disposed downstream from an end of the side portion (311C) that is closer to the downstream end (e.g., an end opposite the first end (311A)). The inner surface (F2-3) can define a cavity (311D-3). For example, the inner surface (F2-3) can define a substantially cylindrical cavity in an area where the side portion (311C-3) is present, and can define a dome-shaped cavity in an area where the curved surface is disposed downstream from the cylindrical solid.

The substrate (311-3) may include a cylindrical solid, and a dome-shaped solid arranged downstream from the cylindrical solid. For example, the substrate (311-3) may include a bulb-shaped solid.

The bulb shape of the substrate (311-3) can enable heat generated from the heat source (310) to be evenly transferred to the medium (M).

FIG. 22 is a drawing showing a cross-section of a portion of an aerosol generating article according to one embodiment.

Referring to FIG. 22, the aerosol generating article (301-4) may include a first segment (302-4) and a second segment (303). The first segment (302-4) may include a medium (M) and a heat source (310-4). The heat source (310-4) may include a substrate (311-4). The substrate (311-4) may include a first end (311A), a second end (311B), an outer surface (F1-4), and an inner surface (F2-4). The first end (311A) of the substrate (311-4) may include an opening (311A1).

The substrate (311-4) may include a branch shape. The substrate (311-4) may include at least one branch (B) extending in any direction from the side (311C) or the second end (311B). The at least one branch (B) may increase a surface area facing the medium (M). The branch shape of the substrate (311) may allow heat generated from the heat source (310) to be evenly transferred to the medium (M).

FIG. 23 is a diagram illustrating an aerosol generating system according to one embodiment.

Referring to FIG. 23, an aerosol generating system (300) may include an aerosol generating article (301), and an aerosol generating device (306) configured to generate an aerosol from the aerosol generating article (301). The aerosol generating article (301) may include a first segment (302) and a second segment (303). The first segment (302) may include a medium (M) and a heat source (310). The heat source (310) may include a substrate (311). In embodiments not shown, the substrate (311) may include various shapes (e.g., substrate (311-2) of FIG. 20, substrate (311-3) of FIG. 21, or substrate (311-4) of FIG. 22, etc.).

When the heat source (310) is included in the aerosol generating article (301), the size of the aerosol generating device (306) can be reduced compared to when the heat source (310) is included in the aerosol generating device (306).

The aerosol generating device (306) may include a light source (307) configured to emit light. For example, the light source (307) may include a laser light source. The light source (307) may emit light in the ultraviolet, visible, and/or infrared bands.

The light source (307) may be positioned so that light emitted from the light source (307) is transmitted to the heat source (310). For example, when the aerosol generating article (301) is inserted into the aerosol generating device (306), the light source (307) may be positioned in the cavity (311D). In an embodiment not shown, the light source (307) may be positioned so as to transmit light from outside the cavity (311D) to the heat source (310).

In an embodiment not shown, the aerosol generating system (300) may utilize an external light source external to the aerosol generating device (306) without an internal light source of the aerosol generating device (306).

In an embodiment not shown, the aerosol generating device (306) may include an optical fiber (not shown). The optical fiber may be configured to transmit light generated from a light source (307) to a heat source (310). The optical fiber may be coupled to an aperture (311A1). Light passing through the aperture (311A1) via the optical fiber may enter the cavity (311D) and travel toward an inner surface of the substrate (311). The optical fiber may be tightly coupled to the aperture (311A1). This may increase the efficiency of light passing through the optical fiber to be transmitted to the cavity (311D) to about 99%. This may allow the amount of light utilized from the heat source (310) to be controlled at a predictable level, which may result in reduced heat loss from the heat source (310) and improved thermal stability of the heat source (310).

FIG. 24 is a diagram illustrating an aerosol generating system according to one embodiment.

Referring to FIG. 24, the aerosol generating system (300-5) may include an aerosol generating article (301-5) and an aerosol generating device (306-5). The aerosol generating article (301-5) may include a first segment (302-5), a medium (M), and a heat source (310).

The aerosol generating device (306-5) may include a plurality of light sources (307) configured to emit light. The plurality of light sources (307) may be configured to transmit light to the heat source (310). Some of the plurality of light sources (307) may be positioned around the first segment (302-5) to transmit light to the first segment (302-5). For example, the aerosol generating device (306-5) may include a cylindrical light source (307) that is positioned around the first segment (302-5) when the aerosol generating article (301) is inserted into the aerosol generating device (306-5). For example, the light source (307) may be positioned around the first segment (302-5) to transmit light to the first segment (302-5). Light transmitted to the first segment (302-5) can be transmitted to a heat source (310).

In an embodiment not shown, the first segment (302-5) may include a plurality of heat sources (310). The plurality of heat sources (310) may be distributed at arbitrary intervals across the width or diameter of the first segment (302-5). The plurality of heat sources (310) may allow heat generated from the plurality of heat sources (310) to be evenly transferred to the medium (M). Each of the plurality of heat sources (310) may include a substrate of various shapes (e.g., the substrate (311) of FIG. 17, the substrate (311-2) of FIG. 20, the substrate (311-3) of FIG. 21, or the substrate (311-4) of FIG. 22, etc.).

In an embodiment not shown, the aerosol generating device (306-5) may include a single light source (307) and multiple heat sources (310).

Any of the embodiments or other embodiments of the present disclosure described above are not mutually exclusive or distinct. Any of the embodiments or other embodiments of the present disclosure described above may be combined or used in combination with each other in their respective configurations or functions.

For example, it means that a configuration A described in a particular embodiment and/or drawing can be combined with a configuration B described in another embodiment and/or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

The above detailed description should not be construed as restrictive in all respects but should be considered as illustrative. The scope of the invention should be determined by a reasonable interpretation of the appended claims, and all changes coming within the equivalent scope of the invention are intended to be embraced within the scope of the invention.

Claims (15)

Contains the first segment, The above first segment, Medium, and A heat source configured to generate heat by surface plasmon resonance, said heat source comprising: substrate, and A plurality of metal particles arranged on the above substrate An aerosol generating article comprising: In paragraph 1, An aerosol generating article, wherein the heat source further comprises an absorbing layer disposed on the substrate and configured to absorb light passing through the substrate. In paragraph 1, An aerosol generating article, wherein the heat source further comprises a reflective layer disposed on the substrate and configured to reflect light toward the substrate. In paragraph 1, An aerosol generating article wherein the heat source further comprises a heat transfer member configured to transfer heat to the medium. In paragraph 1, The above substrate is, A first end facing upstream of the first segment, a second end facing downstream of the first segment, and An aerosol generating article comprising a side extending between said first end and said second end. In paragraph 5, An aerosol generating article wherein the first end comprises an opening. In paragraph 5, An aerosol generating article wherein the second end comprises a closed surface. In paragraph 1, An aerosol generating article, wherein the first segment comprises a plurality of heat sources distributed at arbitrary intervals across the width or diameter of the first segment. In paragraph 1, An aerosol generating article further comprising a second segment connected to the first segment, the second segment including a filter. In Article 9, An aerosol generating article further comprising a third segment connected to the second segment, the third segment being configured to cool the generated aerosol. In Article 10, An aerosol generating article further comprising a fourth segment connected to the third segment, wherein the fourth segment comprises acetate tow. In paragraph 1, The above substrate is, External surface, and Inner surface opposite to the outer surface above Including, An aerosol generating article, wherein the inner surface comprises a curved surface, and the inner surface defines a cavity. In paragraph 1, The above substrate is, a first end facing upstream of the first segment, and comprising a side extending downstream from the first end; An aerosol generating article comprising a dome-shaped solid positioned downstream from the side. In paragraph 1, The above substrate is, A first end facing upstream of the first segment, A second end facing downstream of the first segment, a side extending between the first end and the second end, and At least one extension extending from the second end or the side end An aerosol generating article comprising: Aerosol generating articles according to Article 1, and An aerosol generating device configured to generate an aerosol from the aerosol generating article, The above aerosol generating device is an aerosol generating system comprising a plurality of light sources.

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