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WO2024172273A1 - Dispositif de génération d'aérosol comprenant un dispositif de chauffage par résonance plasmonique de surface et dispositif de fabrication d'un dispositif de chauffage par résonance plasmonique de surface - Google Patents

Dispositif de génération d'aérosol comprenant un dispositif de chauffage par résonance plasmonique de surface et dispositif de fabrication d'un dispositif de chauffage par résonance plasmonique de surface Download PDF

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Publication number
WO2024172273A1
WO2024172273A1 PCT/KR2023/021215 KR2023021215W WO2024172273A1 WO 2024172273 A1 WO2024172273 A1 WO 2024172273A1 KR 2023021215 W KR2023021215 W KR 2023021215W WO 2024172273 A1 WO2024172273 A1 WO 2024172273A1
Authority
WO
WIPO (PCT)
Prior art keywords
heater
aerosol generating
generating device
wick
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2023/021215
Other languages
English (en)
Korean (ko)
Inventor
이원경
김민규
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KT&G Corp
Original Assignee
KT&G Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020230073908A external-priority patent/KR20240126385A/ko
Priority claimed from KR1020230139367A external-priority patent/KR20240126390A/ko
Application filed by KT&G Corp filed Critical KT&G Corp
Priority to EP23923072.5A priority Critical patent/EP4666890A1/fr
Priority to CN202380093001.2A priority patent/CN120659559A/zh
Publication of WO2024172273A1 publication Critical patent/WO2024172273A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/60—Devices with integrated user interfaces

Definitions

  • the disclosure relates to an aerosol generating device including a surface plasmon resonance heater.
  • the disclosure also relates to a device for manufacturing the surface plasmon resonance heater.
  • One aspect of the disclosure can provide a heater and an aerosol generating device including the same that increase light utilization efficiency and secure thermal stability.
  • One aspect of the disclosure can provide an improved device for manufacturing an SPR heater of a complex structure.
  • An aerosol-generating device may include a heater configured to heat an aerosol-generating article.
  • the heater may include a substrate comprising a first side and a second side opposite the first side, the first side including a curved surface, the first side defining a cavity, a surface plasmon resonance (SPR) structure configured to generate heat by SPR, the SPR structure being disposed on the first side, and an aperture configured to allow passage of light into the cavity, the aperture being defined by the first side.
  • SPR surface plasmon resonance
  • the first region of the first side can face a second region that is at least partially different from the first region of the first side.
  • the above first side can have a substantially constant curvature.
  • the heater may include an absorbing layer disposed on the second surface and configured to absorb light transmitting through the substrate.
  • the heater may include a reflective layer disposed on the second surface and configured to reflect light passing through the substrate.
  • the above heater may include a heat transfer member arranged on the second surface and configured to transfer the generated heat.
  • the heat transfer body may include a first material having first thermal properties, and a second material having second thermal properties different from the first thermal properties.
  • the above SPR structure may include a void region, and a plurality of prism regions defining the void region and arranged in a circumferential direction of the void region.
  • the above SPR structure may include a void region, and a metal prism defining the void region and extending along the entire perimeter of the void region.
  • the above SPR structure may include a plurality of metal particles of random size.
  • the aerosol generating device may include an optical fiber connected to the opening.
  • the aerosol generating device may include a wick configured to carry the aerosol generating material.
  • the wick may be thermally coupled to the SPR structure.
  • the aerosol generating device may include a cartridge containing the aerosol generating material.
  • the cartridge may include a hole facing the opening.
  • the aerosol generating device may include a light source configured to generate light.
  • the SPR heater can include a substrate.
  • the substrate can include a closed first end, an open second end opposite the first end, an interior side surface between the first end and the second end, and a hollow portion defined by the interior end surface of the first end and the interior side surface.
  • the apparatus can include a holder configured to support the substrate, a target disposed toward the holder, and an evaporator configured to generate a first deposition material from the target and deposit the first deposition material on the interior end surface and the interior side surface of the first end.
  • the above evaporator can deposit over the entire inner side face between the first end and the second end and over the entire inner end face.
  • the above evaporator can accelerate electrons toward the target.
  • the evaporator may include a power source and a cathode electrically connected to the power source.
  • the device may include a magnetic field generator configured to generate a magnetic field between the evaporator and the target.
  • the first deposition material may include metal particles.
  • the above evaporator is configured to generate a second deposition material different from the first deposition material and can deposit the second deposition material on the inner end face and the inner side face of the first end.
  • the above evaporator can deposit the second deposition material before depositing the first deposition material.
  • the second deposition material may include carbon black.
  • the holder may be configured to heat the substrate.
  • the device may include a chamber configured to accommodate the holder and the target.
  • the device may include a vacuum pump connected to the chamber.
  • the rate at which light (e.g., laser) escapes can be reduced.
  • thermal stability can be secured.
  • an SPR heater having a complex structure e.g., a hollow cylindrical structure
  • the effects of the heater and the aerosol generating device including the same according to one embodiment 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.
  • 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 cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 5 is an exploded cross-sectional view of a body and cartridge of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 6 is an exploded perspective view of a first container of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 7 is a bottom perspective view of a first container of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 8 is a cross-sectional view of a first container of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 9 is an exploded cross-sectional view of a first container and a second container of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 10 is a cross-sectional view of a joint of a first container and a second container of an aerosol generating device according to one embodiment of the present disclosure.
  • FIG. 11 is a cross-sectional view illustrating an airflow channel of an aerosol generating device according to one embodiment of the present disclosure.
  • Figure 12 is a perspective view of a heater according to one embodiment.
  • Fig. 13 is an enlarged view of a portion of the heater of Fig. 12.
  • Fig. 14 is a plan view of a part of the heater of Fig. 13.
  • Figure 15 is a cross-sectional view of the heater taken along line 15-15 of Figure 14.
  • FIG. 16 is a plan view of a portion of a heater according to one embodiment.
  • FIGS. 17 to 19 are drawings showing a method for manufacturing a heater according to one embodiment.
  • FIG. 17 shows that a plurality of metal particles are deposited on a substrate
  • FIG. 18 shows that an annealing process is performed on the structure of FIG. 17,
  • FIG. 19 shows a heater manufactured by the annealing process of FIG. 18.
  • FIG. 20 is a drawing of an aerosol generating device according to one embodiment.
  • FIG. 21 is a perspective view of a heater in an aerosol generating device according to one embodiment.
  • Fig. 22 is a cross-sectional view taken along line 22-22 of the heater of Fig. 21.
  • Figure 23 is an enlarged view of part A of Figure 22.
  • Figure 24 is a schematic drawing of an aerosol generating device according to one embodiment.
  • FIG. 25 is a drawing showing a portion of an SPR heater of an aerosol generating device according to one embodiment.
  • FIG. 26 is a drawing showing a device for manufacturing an SPR heater of an aerosol generating device according to one embodiment.
  • 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).
  • 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
  • at least one heater 18, 24
  • 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 components shown in Fig. 1 may be omitted or new components 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).
  • 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.
  • 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).
  • 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).
  • the temperature sensor (131) may be attached to one side of a battery, which is the power source (11).
  • 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.
  • 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 (1).
  • 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.
  • 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.
  • the characteristics of the current flowing in the coil may change according to Faraday's law of electromagnetic induction.
  • 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.
  • 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.
  • an electromagnetic characteristic 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.
  • 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.
  • the color of at least some of the wrappers may be a first color.
  • 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 capacitance-type 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 (1).
  • the motion detection sensor (137) can be implemented with at least one of an acceleration sensor and a gyro sensor.
  • 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.
  • the display (141) and the touch pad form a layer structure to form a touch screen
  • the display (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.
  • 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.
  • the display (141) can be in the form of an LED light-emitting element.
  • 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 tactilely provide information about the aerosol generating device (1) to the user.
  • 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.
  • 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.
  • 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.
  • the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto.
  • 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).
  • 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).
  • 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.
  • 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.
  • 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 at least one 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).
  • the cartridge heater (24) and/or the heater (18) may be formed of any suitable electrically resistive material.
  • 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.
  • 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 heater, and the like.
  • the heater (18) may be an induction heating type heater.
  • 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.
  • the input unit (15) can be a touch panel.
  • the touch panel can include at least one touch sensor that detects touch.
  • 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.
  • the touch panel may be inserted into the display (141) (on-cell type or in-cell type).
  • the touch panel may be added-on to the display (141).
  • 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 the user's smoking pattern.
  • the communication unit (16) may include at least one component for communicating with another electronic device.
  • 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.
  • 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.
  • 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.
  • a connection interface such as a USB (universal serial bus) interface
  • the control unit (12) can control the overall operation of the aerosol generating device (1).
  • 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.
  • 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 (not shown).
  • 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.
  • 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).
  • the power conversion circuit can include a buck converter that steps down the voltage output from the power source (11).
  • 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.
  • 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.
  • PWM pulse width modulation
  • PID proportional-integral-differential
  • 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.
  • 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.
  • the control unit (12) can control the operation of the power conversion circuit so that the supply of power to the cartridge heater (24) and/or the heater (18) is cut off based on the temperature of the cartridge heater (24) and/or the heater (18) exceeding a preset limit temperature.
  • 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.
  • 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).
  • 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).
  • 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.
  • 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 (134) 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) has not been used. For example, the control unit (12) can compare the sensing value of the signal of the reuse detection sensor (134) 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) has been used. If it is determined that the stick (S) has been 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 (135).
  • 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 (132). 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 (136).
  • 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 can 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), power 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 can include the time when the event occurred, log data corresponding to the event, etc.
  • the log data corresponding to the event can include data on the sensing value of the insertion detection sensor (133), etc.
  • 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.
  • the control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1).
  • 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 right to use 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 right to use.
  • control unit (12) can release the restriction on the use of at least one function of the aerosol generating device (1).
  • 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 a location search of the aerosol generating device (1).
  • 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.
  • the haptic unit (142) can generate vibration in response to the location search request.
  • 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.
  • 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 external 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 external 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).
  • ANN artificial neural network
  • 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 and 3 illustrate an aerosol generating device (1) according to embodiments of the present disclosure.
  • the aerosol generating device (1) may include a body (10) and a cartridge (19).
  • the aerosol generating device (1) may include at least one of a power source (11), a control unit (12), and a sensor (13). At least one of the power source (11), the control unit (12), and the sensor (13) may be disposed inside the body (10).
  • the body (10) may be equipped with a cartridge (19), which is an aerosol generating article. A user may inhale the aerosol by putting a mouthpiece provided at one end of the cartridge (19) in his/her mouth.
  • the cartridge (19) can contain an aerosol generating material in any one of a liquid state, a solid state, a gaseous state, or a gel state, within a chamber (C0) therein.
  • the aerosol generating material can include a liquid composition.
  • the liquid composition can be a liquid including a tobacco-containing material including a volatile tobacco flavoring component, or can be a liquid including a non-tobacco material.
  • the cartridge (19) can be detachably coupled to the body (10).
  • the cartridge (19) can be mounted on the body (10) by being inserted into the body (10).
  • the body (10) can be formed in a structure in which outside air can flow into the interior of the body (10) while the cartridge (19) is inserted. At this time, the outside air that flows into the body (10) can pass through the cartridge (19) and flow into the user's oral cavity through the airflow channel (CN).
  • the cartridge (19) may include a chamber (C0) containing an aerosol generating material and/or a heater (24) for heating the aerosol generating material in the chamber (C0).
  • a liquid delivery means (25) impregnated with (contained) the aerosol generating material may be disposed inside the chamber (C0).
  • the liquid delivery means (25) may include a wick such as cotton fiber, ceramic fiber, glass fiber, porous ceramic, etc.
  • the electrically conductive track of the heater (24) may be formed in a coil-shaped structure that winds the liquid delivery means (25) or a structure that contacts one side of the liquid delivery means (25).
  • the heater (24) may be referred to as a cartridge heater.
  • the cartridge (19) can generate an aerosol.
  • an aerosol can be generated.
  • the generated aerosol can be inhaled into the user's oral cavity through the airflow channel (CN).
  • An airflow channel (CN) may be provided in the cartridge (19).
  • the airflow channel (CN) may communicate with a chamber (C1, see FIG. 3) in which a heater (24) of the cartridge (19) is arranged and the outside of the cartridge (19).
  • One end of the airflow channel (CN) may be opened to the chamber (C1) in which the heater (24) is arranged and the other end may be communicated with the mouthpiece (35).
  • the airflow channel (CN) may extend along the length of the cartridge (19) from one side of the chamber (C0) of the cartridge (19).
  • the airflow channel (CN) may extend along the length of the cartridge (19) by penetrating the chamber (C0) of the cartridge (19).
  • 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 cartridge heater (24).
  • 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 cartridge (19).
  • the control unit (12) can control the operation of a display, a 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 cartridge heater (24) so that the operation of the cartridge heater (24) 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 cartridge heater (24) and the time for which the power is supplied so that the cartridge heater (24) 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, a cartridge detection sensor, and a movement detection sensor.
  • the sensor (13) may sense at least one of the temperature of the cartridge heater (24), the temperature of the power source (11), and the temperature inside and outside the body (10).
  • the sensor (13) may sense a puff of a user.
  • the sensor (13) may sense whether a cartridge (19) is mounted.
  • the sensor (13) may sense the movement of the aerosol generating device (1).
  • FIG. 4 is a cross-sectional view of an aerosol generating device according to one embodiment of the present disclosure.
  • an aerosol generating device (1) may include a body (10) and a cartridge (19).
  • the cartridge (19) may include a first container (20) and a second container (30).
  • the cartridge (19) may be coupled to the body (10).
  • the body (10) can accommodate a power source (11) and a control unit (12).
  • the power source (11) can supply power required for the configuration to operate.
  • the power source (11) can be referred to as a battery (11).
  • the control unit (12) can control the operation of the configuration.
  • the first container (20) may provide a first chamber (C1) therein.
  • the first container (20) may have a wick (25).
  • the wick (25) may be placed in the first chamber (C1).
  • the upper end of the wick (25) may protrude from the first chamber (C1) to the upper side of the first container (20).
  • the first container (20) may be provided with a heater (2531).
  • the heater (2531) may be placed in the first chamber (C1).
  • the heater (2531) may heat the wick (25).
  • the heater (2531) may be attached to the wick (25).
  • the first container (20) may be provided with a terminal (223) therein.
  • the terminal (223) may be exposed to the lower portion of the first container (20).
  • the terminal (223) may be electrically connected to the heater (2531).
  • the first container (20) may be referred to as a lower container (20) or a heating module (20).
  • the first container (20) may be provided with a first air inlet (241) formed by opening the first chamber (C1).
  • the first container (20) may be provided with a first air outlet (242) formed by opening the first chamber (C1).
  • the second container (30) may provide a second chamber (C2) therein.
  • the second container (30) may store liquid in the second chamber (C2).
  • the second container (30) may have an air discharge passage (340). Both ends (341, 342) of the air discharge passage (340) may be open.
  • the air discharge passage (340) may be partitioned from the second chamber (C2).
  • the second container (30) may be referred to as an upper container (30) or a liquid storage section (30).
  • the mouthpiece (35) can be coupled to the upper side of the second container (30).
  • the mouthpiece (35) can cover the upper part of the second container (30).
  • the mouthpiece (35) can have a second airflow outlet (354) therein.
  • the second airflow outlet (354) can be connected to the other end (342) of the airflow outlet path (340).
  • the first container (20) can be coupled to the body (10).
  • the first container (20) can be inserted into the interior of the body (10).
  • the heater (2531) can be electrically connected to a power source (11) through the terminal (223).
  • the heater (2531) can be supplied with power from the power source (11) and generate heat.
  • the heater (2531) can be a resistive heater.
  • the second container (30) may be coupled to the upper side of the first container (20).
  • the coupling of the second container (30) to the first container (20) may include the second container (30) being directly coupled to the first container (20) and the second container (30) being indirectly coupled to the first container (20) by being coupled to the body (10).
  • the second container (30) When the second container (30) is coupled to the first container (20), the second container (30) can supply the stored liquid to the wick (25).
  • the wick (25) can receive and absorb the liquid from the second container (30).
  • the heater (2531) can heat the wick (25) that has absorbed the liquid to generate an aerosol in the first chamber (C1).
  • the body (10) may be provided with a second air inlet (141) that is open on one side.
  • the first air inlet (241) may be connected to the second air inlet (141).
  • the second container (30) is coupled to the first container (20)
  • one end (341) of the air discharge path (340) and the first air discharge path (242) may be connected. Accordingly, a path through which air flows may be formed.
  • the user may put the mouthpiece (35) in his mouth and inhale air.
  • the outside air can be provided to the user by sequentially passing through the second air inlet (141), the first air inlet (241), the first chamber (C1), the first air outlet (242), the air outlet path (340), and the second air outlet (354).
  • the air can flow together with the aerosol generated in the first chamber (C1).
  • the first container (20) and the second container (30) can be replaced independently of each other.
  • the consumption cycle of the liquid stored in the second container (30) and the appropriate replacement cycle of the first container (20) may be different from each other, and the user may separately replace only the second container (30) or separately replace only the first container (20).
  • the consumption cycle of the liquid stored in the second container (30) may be shorter than the appropriate replacement cycle of the first container (20), and when the second container (30) is replaced multiple times, the first container (20) may be replaced only once. Accordingly, the first container (20) can be used for a longer period of time, and the cost of replacing the cartridge can be reduced.
  • FIG. 5 is an exploded cross-sectional view of a body and cartridge of an aerosol generating device according to one embodiment of the present disclosure.
  • the first container (20) can be detachably coupled to the body (10).
  • the first coupler (151) can detachably couple the first container (20) and the body (10).
  • the first coupler (151) can include a hook groove (225) and a hook (125) detachably fastened to the hook groove (225).
  • the hook (125) can be formed of a material such as rubber or silicone to seal between the body around the second airflow inlet (141) and the first container (20).
  • the first coupler (151) can couple the first container (20) and the body (10) through magnetic force.
  • the second container (30) can be detachably coupled to the first container (20).
  • the second container (30) can be coupled to the upper side of the first container (20).
  • the second container (30) can be coupled to the body (10) and indirectly coupled to the first container (20).
  • the second coupler (152) can detachably couple the second container (30) and the body (10).
  • the second coupler (152) can include a hook groove (325) and a hook (125) detachably fastened to the hook groove (325).
  • the second coupler (152) can couple the second container (30) and the body (10) through magnetic force.
  • FIG. 6 is an exploded perspective view of a first container of an aerosol generating device according to an embodiment of the present disclosure
  • FIG. 7 is a bottom perspective view of the first container of the aerosol generating device according to an embodiment of the present disclosure.
  • the first container (20) may include a case (21), a wick (25), and a heater (2531, see FIG. 7).
  • the case (21) may include a first case (22) and a second case (23).
  • the second case (23) can be coupled to the upper side of the first case (22).
  • the first case (22) can be opened upwardly and have a space (224) forming a first chamber (C1).
  • the second case (23) can be opened downwardly and have a space (234) forming a first chamber (C1).
  • the first case (22) and the second case (23) can be coupled upwardly and downwardly to form a first chamber (C1) therein.
  • the terminal (223) may be fixed to the bottom of the first case (22) and exposed to the lower part of the first case (22).
  • the terminal (223) may protrude upward from the first case (22) toward the first chamber (C1).
  • the terminals (223) may be provided as a pair spaced apart from each other horizontally.
  • the first air inlet (241) may be formed at the bottom of the first case (22).
  • the first air inlet (241) may be formed in multiple numbers to form a multi-hole shape.
  • the first air inlet (241) may be spaced apart from the terminal (223) in a horizontal direction.
  • the first air inlet (241) may be formed by opening the lateral wall of the first case (22) and/or the lateral wall of the second case (23).
  • the case (21) may have one configuration of the first coupler (151).
  • the hook home (225) may be formed by recessing the lower periphery of the first case (22).
  • the hook (125) may be formed by protruding the lower periphery of the first case (22).
  • the first case (21) may have a magnet or a ferromagnetic body.
  • the first airflow outlet (242) may be formed on the upper wall of the second case (23). As another example, the first airflow outlet (242) may be formed on the side wall of the second case (23). The first airflow outlet (242) may be formed at a position facing the first airflow inlet (241).
  • the liquid inlet (235) may be formed on the upper wall of the second case (23).
  • the liquid inlet (235) may be formed on the upper side of the first chamber (C1).
  • the liquid inlet (235) may be separated from the second airflow outlet (242).
  • the liquid inlet (235) may be formed on one side of the upper wall of the second case (23), and the second airflow outlet (242) may be formed on the other side of the upper wall of the second case (23).
  • the liquid inlet (235) may be formed on a side corresponding to the terminal (223) and the supporter (227), and the first airflow outlet (242) may be formed on a side corresponding to the first airflow inlet (241).
  • the wick (25) may include a first wick part (251) and a second wick part (252).
  • the first wick part (251) may be placed in the first chamber (C1) between the first case (22) and the second case (23).
  • the lower edge of the first wick part (252) may be supported by a supporter (227).
  • the second wick part (252) can protrude upward from the first wick part (251).
  • the second wick part (252) can be exposed to the outside of the first chamber (C1) through the liquid inlet (235).
  • the second wick part (252) can protrude upward by penetrating the liquid inlet (235) and the first wick sealing portion (265).
  • a heater (2531) can be coupled to a first wick part (251).
  • the heater (2531) can heat the first wick part (251).
  • a first terminal (2533) formed at both ends of the heater (2531) can be in contact with a second terminal (223), thereby electrically connecting the heater (2531) and the second terminal (223).
  • the supporter (227) may protrude upward from the bottom of the first case (22).
  • the supporter (227) may be formed around the terminal (223).
  • the supporters (227) may be provided in multiple numbers and arranged around the terminal (223).
  • the supporter (227) may include a first supporter (227a) and a second supporter (227b).
  • the first supporter (227a) and the second supporter (227b) may be arranged in an area corresponding to a lower edge of the first core part (251).
  • the first supporter (227a) and the second supporter (227b) may be spaced apart from each other.
  • the second supporter (227b) may be formed at a position adjacent to the first air inlet (242).
  • the second supporter (227b) may be formed between the terminal (223) and the first air inlet (241).
  • the second supporters (227b) may be formed as a pair.
  • the pair of second supporters (227b) may be spaced apart from each other to form a first gap (227c) therebetween.
  • the first supporter (227a) and the second supporter (227b) may be spaced apart from each other to form a second gap (227d) therebetween.
  • the sealer (26) can be coupled to the upper side of the first container (20).
  • the sealing plate (261) of the sealer (26) can cover the upper surface of the case (21).
  • the sealer (26) can be formed of an elastic material.
  • the sealer (26) can be formed of a rubber or silicone material.
  • the sealer (26) may include a first wick sealing portion (265).
  • the first wick sealing portion (265) may be formed by opening a sealing plate (261) at a position corresponding to the liquid inlet (235).
  • the first wick sealing portion (265) may form an inner circumferential surface of the sealing plate (261).
  • the first wick sealing portion (265) may have a shape corresponding to a circumferential surface (235a) surrounding the liquid inlet (235).
  • the first wick sealing portion (265) may protrude downward from the sealing plate (261) and be in close contact with the inner side of the circumferential surface (235a) of the liquid inlet (235).
  • the second wick part (252) can pass through the first wick sealing part (265) and protrude above the liquid inlet (235).
  • the sealer (26) may include a second wick sealing portion (262).
  • the second wick sealing portion (262) may protrude downward from the lower surface of the sealing plate (261).
  • the second wick sealing portion (262) may be formed on the lower side of the first wick sealing portion (265) or on the lower side around the first wick sealing portion (265).
  • the second wick sealing portion (262) may extend along the perimeter of the first wick sealing portion (265).
  • the sealer (26) may include a sealing wall (266, 267) protruding upward from the upper surface of the sealing plate (261).
  • the sealing wall (266, 267) may surround the periphery of the liquid inlet (235) and the first wick sealing portion (265).
  • the sealing wall (266, 267) may extend along the periphery of the first wick sealing portion (265) to form a periphery.
  • the sealing walls (266, 267) may be formed in plurality.
  • the sealing walls (266, 267) may include a first sealing wall (266) adjacent to the periphery of the first wick sealing portion (265) and a second sealing wall (267) spaced outwardly from the first sealing wall (266).
  • the second sealing wall (267) may protrude higher upward than the first sealing wall (266).
  • the second sealing wall (267) may surround the first sealing wall (266).
  • the sealer (26) may include an airflow sealing portion (268).
  • the airflow sealing portion (268) may surround the periphery of the first airflow outlet (242).
  • the airflow sealing portion (268) may protrude upward from the upper surface of the sealing plate (261).
  • the second sealing wall (267) may protrude higher than the airflow sealing portion (268).
  • the airflow sealing portion (268) may be formed on the outer side of the sealing walls (266, 267).
  • the wick (25) may be formed of a porous rigid body that absorbs liquid.
  • the wick (25) may be formed of a porous ceramic.
  • the wick (25) may be stronger or more heat-resistant than a cotton wick.
  • the wick (25) can be implemented in various shapes with little or no deformation.
  • the durability of the wick (25) is improved, and the replacement cycle of the first container (20) equipped with the wick (25) can be increased.
  • the first wick part (251) may be extended in one horizontal direction.
  • the first wick part (251) may have a hexahedral shape.
  • the upper surface of the first wick part (251) may be formed horizontally.
  • the lower surface of the first wick part (251) may be formed horizontally.
  • the side surface of the first wick part (251) may be formed between the upper surface perimeter and the lower surface perimeter, thereby defining the perimeter of the first wick part (251).
  • the side surface of the first wick part (251) may be named the perimeter surface of the first wick part (251).
  • the second wick part (252) may protrude upward from the center of the upper surface of the first wick part (251).
  • the second wick part (252) may extend long in the horizontal direction.
  • the second wick part (252) may have a hexahedral shape.
  • the upper surface of the second wick part (252) may be formed horizontally.
  • the lower surface of the second wick part (252) may be formed horizontally.
  • the lower surface of the second wick part (252) may overlap the upper surface of the first wick part (251).
  • the side surface of the second wick part (252) may be formed between the upper surface perimeter and the lower surface perimeter to define the perimeter of the second wick part (252).
  • the side surface of the second wick part (252) can be named the peripheral surface of the second wick part (252).
  • the first wick part (251) may be larger than the second wick part (252).
  • the perimeter of the upper surface of the first wick part (251) may be larger than the perimeter of the upper surface of the second wick part (252).
  • the height of the first wick part (251) may be larger than the height of the second wick part (252).
  • the length of the first wick part (251) may be larger than the length of the second wick part (252).
  • the width of the first wick part (251) may be larger than the width of the second wick part (252).
  • the first wick part (251) can protrude horizontally outwardly from the lower surface of the second wick part (252) by a certain width.
  • the second wick part (252) can protrude from the inner side of the perimeter of the upper surface of the first wick part (251).
  • the perimeter of the upper surface of the first wick part (251) can protrude outward from the lower surface of the second wick part (252).
  • the heater (2531) can be attached to the first wick part (251).
  • the heater (2531) can form a pattern on the lower surface of the first wick part (251).
  • the heater (2531) can form various patterns along the longitudinal direction of the first wick part (251). Both ends of the heater (2531) can be adjacent to both ends of the first wick part (251).
  • a pair of first terminals (2533) may be formed at opposite ends of the heater (2531).
  • the first terminals (2533) may be coupled to the lower surface of the first wick part (251).
  • the pair of first terminals (2533) may be adjacent to opposite ends of the first wick part (251).
  • the first terminals (2533) may protrude downward from the first wick part (251).
  • FIG. 8 is a cross-sectional view of a first container of an aerosol generating device according to one embodiment of the present disclosure.
  • the first air inlet (241) may be formed on the lower side of the first chamber (C1).
  • the first air outlet (242) may be formed on the upper side of the first chamber (C1).
  • the first air inlet (241) and the first air outlet (242) may be formed in a vertically parallel manner.
  • the wick (25) may be arranged on the right side of the first chamber (C1), and the first air inlet (241) and the first air outlet (242) may be formed on the left side of the first chamber (C1).
  • the first channel (CN1) may be formed on the left side of the first chamber (C1) and may be provided with the first air inlet (241) and the first air outlet (242). Air can be introduced into the first channel (CN1) through the first air inlet (241) and discharged through the first air outlet (242).
  • the first terminal (2533) can be in contact with the second terminal (223) to electrically connect the heater (2531) and the second terminal (223).
  • the second terminal (223) can support the first terminal (2533) and the lower surface (2513) of the first wick part (251).
  • the lower part of the first wick part (251) may be supported by the supporter (227).
  • the upper surface (2511) of the first wick part (251) may be supported by the lower part of the second case (23) and/or the second wick sealing part (262) around the liquid inlet (235).
  • the periphery of the side (2522) of the second wick part (252) may be supported by the periphery surface (235a) of the liquid inlet (235) and/or the inner surface of the first wick sealing part (265).
  • the wick (25) can be fixed to the first container (20).
  • the supporter (227) can separate the first wick part (2511) from the bottom of the first chamber (C1) upwardly.
  • the supporter (227) can be arranged around the heater (2513).
  • the supporter (227) can form a gap (227c, 227d) that connects the heater (2531) attached to the lower surface (2513) of the first wick part (2511) to the first chamber (C1).
  • the supporter (227) can be opened between the first channel (CN1) and the heater (2531) to form the first gap (227c).
  • the supporter (227) may include a first supporter (227a) and a second supporter (227b).
  • the second supporter (227b) may be positioned closer to the first air inlet (241) and the first air outlet (242) than the first supporter (227a).
  • the first air inlet (241) and the first air outlet (242) may be adjacent to the left side of the first wick part (251).
  • the first supporter (227a) may be extended along the right edge between the lower surface (2513) and the side surface (2512) of the first wick part (251).
  • the first supporter (227a) can support the area around the right edge between the lower surface (2513) and the side surface (2512) of the first core part (251).
  • a pair of second supporters (227b) can support the area around the left vertex of the first core part (251).
  • a pair of second supporters (227b) may be spaced apart from each other to form a first gap (227c) through which air may flow between the periphery of the heater (2531) and the first air inlet (242).
  • the first supporter (227a) and the second supporter (227b) may be spaced apart from each other to form a second gap (227d) through which air may flow between the periphery of the heater (2531) and the first air inlet (242).
  • the first gap (227c) and the second gap (227d) may be formed around the lower surface (2513) of the first wick part (251).
  • the aerosol generated from the wick (25) and the air surrounding it can flow smoothly through a pair of multiple supporters (227) toward the first airflow outlet (242).
  • the first wick sealing portion (265) can be arranged between the circumferential surface (2522) of the second wick part (252) and the circumferential surface (235a) of the liquid inlet (235).
  • the inner circumferential surface of the first wick sealing portion (265) can be in close contact with the circumferential surface (2522) of the second wick part (252).
  • the first wick sealing portion (265) can seal between the circumferential surface (2522) of the second wick part (252) and the circumferential surface (235a) of the liquid inlet (235).
  • the circumference of the upper surface (2511) of the first wick part (251) may be larger than the circumference of the liquid inlet (235).
  • the circumference of the upper surface (2511) of the first wick part (251) may be formed horizontally further outside the circumference of the liquid inlet (235).
  • the edge portion of the first wick part (251) may absorb liquid leaking between the liquid inlet (235) and the circumference surface (2522) of the second wick part (252).
  • the second wick sealing portion (262) can protrude downward from the periphery of the liquid inlet (235) toward the upper surface (2511) of the first wick part (251).
  • the second wick sealing portion (262) can be in close contact with the upper surface (2511) of the first wick part (251).
  • the second wick sealing portion (262) can support the upper surface (2511) of the first wick part (251).
  • the liquid supplied from the second container (30) to the wick (25) can be prevented from leaking into the first chamber (C1) through the circumferential surface (235a) of the second wick part (252) and the liquid inlet (235) without being absorbed by the wick (25).
  • FIG. 9 is an exploded cross-sectional view of a first container and a second container of an aerosol generating device according to an embodiment of the present disclosure
  • FIG. 10 is a combined cross-sectional view of the first container and the second container of an aerosol generating device according to an embodiment of the present disclosure
  • FIG. 11 is a cross-sectional view illustrating an airflow channel of an aerosol generating device according to an embodiment of the present disclosure.
  • the second container (30) can provide a second chamber (C2) for storing liquid.
  • the liquid discharge port (314) can be formed by opening the second chamber (C2).
  • the liquid discharge port (314) can be formed at the bottom of the second chamber (C2).
  • the liquid discharge port (314) can be composed of a plurality of holes.
  • the liquid stored in the second chamber (C2) can be discharged through the liquid discharge port (314).
  • the absorbent portion (316) can block the lower portion of the liquid discharge port (314).
  • the absorbent portion (316) can absorb liquid that has passed through the liquid discharge port (314).
  • the absorbent portion (316) can be formed of a felt material.
  • the bracket (317) may protrude from the periphery of the liquid discharge port (314) toward the lower side of the second container (30).
  • the bracket (317) may surround the side periphery of the absorbent portion (316).
  • the absorbent portion (316) may be exposed from the bracket (317) toward the lower side of the second container (30).
  • the bracket (317) may secure the absorbent portion (316) to the lower side of the first container (30).
  • the bracket (317) may support the lower periphery of the absorbent portion (316) in a hook shape.
  • the film can be detachably attached to the lower surface of the absorbent portion (316).
  • the edge of the film can be attached to the lower surface of the bracket (317).
  • the film can be formed of a waterproof material. The film can prevent liquid from leaking from the absorbent portion (316). Before attaching the second container (30) to the first container (20), the user can detach the film from the absorbent portion (316).
  • the recessed portion (315) can be formed by recessing the lower surface (312) of the second container (30) upward.
  • the groove formed by the recessed portion (315) can surround the bracket (317).
  • the second container (30) may have one configuration of the second coupler (152).
  • the hook home (325) may be formed by recessing the outer wall of the second container (30).
  • the hook (125) may be formed by protruding the outer wall of the second container (30).
  • the second container (30) may have a magnet or a ferromagnetic material.
  • the second container (30) can provide an air discharge path (340).
  • the air discharge path (340) can be partitioned from the second chamber (C2) by the inner wall of the second container (30).
  • the air discharge path (340) can be defined by the outer wall and the inner wall of the second container (30). Both ends of the air discharge path (340) can be open. One end of the air discharge path (340) can be opened downward. The other end of the air discharge path (340) can be opened upward.
  • One end of the air discharge path (340) can be formed by opening the lower surface (312) of the second container (30).
  • the other end of the air discharge path (340) may be connected to a second air discharge port (354) formed inside the mouthpiece (35).
  • the air discharge path (340) may be named a second channel (CN2).
  • the first container (20) can be detachably coupled to the body (10).
  • the first coupler (151) can detachably couple the first container (20) and the body (10).
  • the second container (30) can be detachably coupled to the first container (20).
  • the second container (30) can be indirectly coupled to the first container (20) by being coupled to the body (10) via the second coupler (152).
  • the second container (30) can be coupled to the upper side of the first container (20).
  • the second container (30) When the second container (30) is combined with the first container (20), the second container (30) can supply liquid to the wick (25).
  • the liquid stored in the second chamber (C2) passes through the liquid discharge port (314) and is absorbed by the absorption part (316), and the absorption part (316) that has absorbed the liquid can contact the second wick part (252) to transfer the liquid.
  • the liquid absorbed by the second wick part (252) can spread to the first wick part (251).
  • the heater (2531) can heat the first wick part (251) that has absorbed the liquid to generate an aerosol.
  • the sealer (26) can seal the periphery of the liquid inlet (235) where the wick (25) is exposed from the first chamber (C1). When the second container (30) is coupled to the upper side of the first container (20), the sealer (26) can seal between the first container (20) and the second container (30).
  • the sealing wall (266, 267) may protrude toward the second container (30).
  • the sealing wall (266, 267) may be in close contact with the second container (30).
  • the sealing wall (266, 267) may surround the liquid inlet (235).
  • the first sealing wall (266) can surround the liquid inlet (235) and the perimeter (2522) of the second wick part (252).
  • the first sealing wall (266) can be in close contact with the lower part of the second container (30).
  • the first sealing wall (266) can be in close contact with a protruding portion formed on the inner side of the recessed portion (315).
  • the first sealing wall (266) can be in close contact with the bracket (317).
  • the bracket (317) and the first sealing wall (266) can surround the perimeter (2522) of the second wick part (252). Accordingly, the bracket (317) can not only secure the absorption portion (316), but also pressurize the first sealing wall (266) to seal the area around the second wick part (252) and the liquid inlet (235).
  • the second sealing wall (267) may protrude higher than the first sealing wall (266).
  • the second sealing wall (267) may be arranged on the horizontal outer side of the first sealing wall (266) and may surround the first sealing wall (266).
  • the second sealing wall (267) may be in close contact with the lower part of the second container (30).
  • the second sealing wall (267) may be inserted into a groove formed by the recessed portion (315) and may be in close contact with the recessed portion (315).
  • the first sealing wall (266) can seal the area around the second wick part (252) and the liquid inlet (235). In addition, even if the liquid flows out of the first sealing wall (266), it can be sealed by the second sealing wall (267).
  • the first channel (CN1) may be formed on the left side of the first chamber (C1).
  • the wick (25) and the heater (2531) may be arranged on the right side of the first chamber (C1).
  • the first channel (CN1) may have a first air inlet (241) and a first air outlet (242).
  • the first air inlet (241) may be formed at one end of the first channel (CN1).
  • the first air outlet (242) may be formed at the other end of the first channel (CN1).
  • the first channel (CN1) may be misaligned from the wick (25) with respect to the vertical direction.
  • the wick (25) may be spaced apart from the first air inlet (241) and the second air inlet (242). Unlike the one shown, at least one of the first air inlet (241) and the first air outlet (242) may be formed by opening the side wall of the first container (20) in the first channel (CN1).
  • the second air inlet (141) formed by opening one side of the body (10) can be communicated with the first air inlet (241).
  • the area between the body (10) and the first container (20) can be sealed.
  • the hook (125) can seal the area between the body (10) and the first container (20) around the second air inlet (141).
  • the lower end of the first airflow outlet (242) and the second channel (CN2) can be connected.
  • the first channel (CN1) and the second channel (CN2) can be connected to form one flow path (CN).
  • the second channel (CN2) can be connected to the second airflow outlet (354).
  • the size of the flow path can be reduced by allowing air to flow only to one side of the first chamber (C1), and the size of the aerosol generating device can be reduced or optimized.
  • the air flow resistance from the structure supporting the wick (25) can be reduced.
  • the airflow sealing portion (268) can be in close contact with the lower portion of the second container (30) around the lower portion of the second channel (CN2).
  • the airflow sealing portion (268) can surround the lower portion of the second channel (CN2) and the first airflow discharge port (242).
  • the airflow sealing portion (268) can seal between the first container (20) and the second container (30) around the lower portion of the airflow discharge path (340) and the first airflow discharge port (242).
  • air passing through the air discharge path (340) from the first air discharge port (242) can be prevented from leaking between the first container (20) and the second container (30), and the air flow efficiency can be improved.
  • 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.
  • 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. 12 is a perspective view of a heater according to one embodiment.
  • FIG. 13 is an enlarged view of a portion of the heater of FIG. 12.
  • FIG. 14 is a plan view of a portion of the heater of FIG. 13.
  • FIG. 15 is a cross-sectional view of the heater taken along line 15-15 of FIG. 14.
  • the heater (550) can be configured to generate heat by surface plasmon resonance.
  • Surface plasmon resonance refers to the collective oscillation of electrons propagating along the interface of metal particles with a medium.
  • the collective oscillation of electrons of the metal particles can be generated by light propagating from the outside of the heater (550). Excitation of the electrons of the metal particles generates thermal energy, and the generated thermal energy can be transferred within an environment to which the heater (550) is applied.
  • the heater (550) can be configured to heat another object (e.g., an aerosol-generating article) by transferring the generated heat to the object.
  • the heater (550) may include a substrate (551) having a first side (551A) (e.g., a side oriented in the +Z direction) and a second side (551B) opposite to the first side (551A) (e.g., a side oriented in the -Z direction).
  • a substrate 551 having a first side (551A) (e.g., a side oriented in the +Z direction) and a second side (551B) opposite to the first side (551A) (e.g., a side oriented in the -Z direction).
  • the substrate (551) may have a plate shape.
  • the first surface (551A) and/or the second surface (551B) may be formed as substantially flat surfaces.
  • the substrate (551) may have any shape suitable for generating heat.
  • the substrate (551) may be implemented as a substantially cylindrical shape with the first surface (551A) as the outer surface and the second surface (551B) as the inner surface.
  • the substrate (551) may be formed of various materials.
  • the substrate (551) 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 (551) may be formed of any one or a combination of glass, silicon (Si), silicon oxide (SiO 2 ), and sapphire.
  • the substrate (551) may include a material having a relatively low heat transfer coefficient. This may allow heat to be transferred to only some areas on the substrate (551).
  • the substrate (551) may exhibit electrical conductivity.
  • the substrate (551) may also exhibit electrical insulation.
  • the substrate (551) can be formed of any material having a thermal conductivity suitable for use in an environment in which the heater (550) is placed.
  • the substrate (551) 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 (551) 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.
  • the heater (550) may include a plurality of metal prisms (554) positioned on a first surface (551A) of a substrate (551).
  • the plurality of metal prisms (554) may include a plurality of metal particles deposited on the substrate (551) via any suitable deposition process (e.g., physical vapor deposition).
  • the plurality of metal particles forming the plurality of metal prisms (554) may have a nano-scale size.
  • the plurality of metal particles may have an average maximum diameter of about 1 ⁇ m 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.
  • 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).
  • a particular wavelength band e.g., a visible light wavelength band, i.e., from about 380 nm to about 780 nm.
  • 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.
  • 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.
  • the plurality of metal particles can be formed of a metal material having an average maximum absorbance in a wavelength band of between about 430 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 a plurality of metal particles may vary depending on the type of substrate (551), the size of the metal prism (554) formed by the plurality of metal particles, and/or the shape of the metal prism (554), in addition to the metal material.
  • a plurality of metal prisms (554) can define a void area (VA) surrounded by the plurality of metal prisms (554) on the first surface (551A) of the substrate (551).
  • the void area (VA) can have a substantially circular or elliptical shape, and the plurality of metal prisms (554) can be arranged along the circumferential direction of the void area (VA).
  • the void region (VA) can have an average maximum diameter of at least about 10 nm, at least about 50 nm, at least about 90 nm, at least about 100 nm, at least about 150 nm, at least about 200 nm, at least about 300 nm, at least about 350 nm, at least about 450 nm, or at least about 500 nm.
  • the void region (VA) can have an average maximum diameter of at least about 450 nm.
  • the void region (VA) can have an average maximum diameter of at least about 350 nm.
  • the void region (VA) can have an average maximum diameter of about 1,000 nm or less, about 900 nm or less, about 800 nm or less, about 700 nm or less, about 600 nm or less, or about 550 nm or less.
  • the plurality of metal prisms (554) may each include a first base surface (554A) facing the first surface (551A) of the substrate (551) (e.g., a lower base surface), a second base surface (554B) opposite to the first base surface (554A) (e.g., an upper base surface), and a plurality of side surfaces (554C1, 554C2, 554C3) between the first base surface (554A) and the second base surface (554B).
  • a first base surface (554A) facing the first surface (551A) of the substrate (551) e.g., a lower base surface
  • a second base surface (554B) opposite to the first base surface (554A) e.g., an upper base surface
  • a plurality of side surfaces (554C1, 554C2, 554C3 between the first base surface (554A) and the second base surface (554B).
  • the first base surface (554A) and the second base surface (554B) can be substantially parallel to each other.
  • the first base surface (554A) and/or the second base surface (554B) may be substantially flat.
  • the distance between the first base surface (554A) and the second base surface (554B) may be less than or equal to about 10 nm.
  • a thickness of the metal prism (554) greater than 10 nm may reduce the exothermic reaction of the plurality of metal particles forming the metal prism (554), thereby reducing the thermal efficiency of the heater (550).
  • the plurality of side faces (554C1, 554C2, 554C3) can be oriented in different directions.
  • the first side face (554C1) can be oriented in a first direction (e.g., a first radial direction)
  • the second side face (554C2) can be connected to the first side face (554C1) and oriented in a second direction (e.g., a second radial direction)
  • the third side face (554C3) can be connected to the first side face (554C1) and the second side face (554C3) and oriented in a third direction (e.g., a third radial direction).
  • At least one of the plurality of side faces (554C1, 554C2, 554C3) may be formed as a substantially curved surface.
  • the plurality of side faces (554C1, 554C2, 554C3) may be formed as curved surfaces having substantially the same curvature.
  • the curvature of one of the plurality of side faces (554C1, 554C2, 554C3) may be different from the curvature of another side face.
  • the plurality of side faces (554C1, 554C2, 554C3) may be formed as a curved surface that is concavely formed toward the center of the metal prism (554). At least one side face among the plurality of side faces (554C1, 554C2, 554C3) may be formed as a curved surface that is convexly formed from the center of the metal prism (554).
  • the plurality of metal prisms (554) may include two side faces.
  • the metal prisms (554) may have a substantially semicircular or nearly semicircular shape.
  • a plurality of metal prisms (554) may be positioned physically separated from each other on the first surface (551A) of the substrate (551).
  • the plurality of metal prisms (554) may be spaced apart from each other at a set interval along the perimeter (e.g., circumference) of the void area (VA).
  • the plurality of metal prisms (554) may be spaced apart from each other at substantially the same interval.
  • the interval between any adjacent pair of metal prisms (554) among the plurality of metal prisms (554) may be different from the interval between other adjacent pairs of metal prisms (554).
  • FIG. 16 is a plan view of a portion of a heater according to one embodiment.
  • the heater (650) may include a substrate (651) and a metal prism (654) positioned on the substrate (651).
  • the metal prism (654) may define a plurality of void regions (VA) as a substantially single structure.
  • the metal prism (654) may define substantially the entire perimeter of the plurality of void regions (VA).
  • the metal prism (654) may include a first prism region (6541) at one location on the perimeter (e.g., circumference) of the void region (VA), a second prism region (6542) at another location on the perimeter (e.g., circumference) of the void region (VA), and a third prism region (6543) between the first prism region (6541) and the second prism region (6542).
  • the first prism region (6541), the second prism region (6542), and the third prism region (6543) can be seamlessly connected as one unit.
  • FIGS. 17 to 19 are drawings showing a method for manufacturing a heater according to one embodiment.
  • FIG. 17 shows that a plurality of metal particles are deposited on a substrate
  • FIG. 18 shows that an annealing process is performed on the structure of FIG. 17,
  • FIG. 19 shows a heater manufactured by the annealing process of FIG. 18.
  • a method for manufacturing a heater (750) may include an operation of providing a substrate (751).
  • the substrate (751) may have a plate shape having opposing faces. At least one face of the substrate (751) may be substantially flat. At least one face of the substrate (751) may be curved.
  • a method for manufacturing a heater (750) may include forming a metal layer (753) on one surface (e.g., the upper surface in FIG. 17) of a substrate (751).
  • the metal layer (753) may be formed by applying metal particles onto the one surface of the substrate (751).
  • the metal particles may be deposited by sputtering, ion beam deposition, thermal deposition, chemical deposition, plasma deposition, and/or any other suitable deposition method.
  • the metal layer (753) may also be formed by disposing a film on the one surface of the substrate (751).
  • the metal layer (753) may have a thickness of about 10 nm or less.
  • the metal layer (753) When the metal layer (753) is formed on the substrate (751) to a thickness exceeding 10 nm, an exothermic reaction may be reduced in a structure formed by the metal layer (753) (e.g., the metal particles P1, P2, P3, and P4).
  • a thickness of the structure formed by the metal layer (753) exceeding 10 nm may increase the possibility of heat being lost to the surroundings of the heater (750), thereby reducing the thermal efficiency of the heater (750).
  • a method for manufacturing a heater (750) may include annealing a metal layer (753) on a substrate (751). Annealing the metal layer (753) may form a boundary (B) (e.g., a grain boundary) between adjacent metal segments (S1, S2, S3, S4).
  • a heating temperature of the metal layer (753) may be about 150° C. or higher, about 160° C. or higher, about 170° C. or higher, about 180° C. or higher, about 190° C. or higher, about 200° C. or higher, about 210° C. or higher, about 220° C. or higher, about 230° C. or higher, or about 240° C. or higher.
  • a plurality of metal segments (S1, S2, S3, S4) on the substrate (751) may be deformed with respect to the boundary (B).
  • a flux is applied to adjacent metal segments (S1, S2, S3, S4) arranged on both sides with respect to a boundary (B), and dewetting of a plurality of metal segments (S1, S2, S3, S4) can be induced.
  • a plurality of metal particles can be formed on a substrate (751) by dewetting.
  • the plurality of metal particles (P1, P2, P3, P4) can be partitioned based on a boundary (B).
  • the plurality of metal particles (P1, P2, P3, P4) can have random sizes.
  • the size of any one of the plurality of metal particles (P1, P2, P3, P4) can be different from the size of the other metal particle.
  • the plurality of metal particles (P1, P2, P3, P4) can have a nano-scale size.
  • the plurality of metal particles (P1, P2, P3, P4) can have random sizes within an average maximum diameter range of about 1 ⁇ m or less.
  • the plurality of metal particles (P1, P2, P3, P4) can have a random size within a range of 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 (P1, P2, P3, P4) may not bond to each other across the boundary (B).
  • FIG. 20 is a drawing of an aerosol generating device according to one embodiment.
  • an aerosol-generating device (800) can include at least one heater (850) configured to heat an aerosol-generating article (e.g., heater (450) and/or heaters (550, 650, 750)), and at least one light source (855) configured to emit light toward the at least one heater (850).
  • the aerosol-generating device (800) can include a plurality of reservoirs (830) configured to contain a liquid composition, and a wick (860) configured to carry the liquid composition from the plurality of reservoirs (830).
  • the wick (860) can be connected to the plurality of reservoirs (830) so as to be in fluid communication with the plurality of reservoirs (830).
  • the at least one heater (850) can be thermally coupled to the wick (860).
  • the liquid composition contained in the wick (860) can be vaporized by the heater (850) and can escape to the outside of the aerosol generating device (800) through the mouth end along the passage defined between the plurality of reservoirs (830).
  • FIG. 20 illustrates that the aerosol generating device (800) includes a control unit (810) configured to control the heater (850) and/or the light source (855), and a battery (840) configured to supply electric energy to the control unit (810), but other components may be included or omitted.
  • the aerosol generating device (800) may include a single heater (850).
  • the heater (850) may at least partially surround a cavity in which an aerosol generating article may be positioned.
  • the heater (850) may have a structure in which, for example, the substrate (551, 651, 751) is at least partially curved.
  • the aerosol generating device (800) may include a plurality of heaters (850).
  • the plurality of heaters (850) may be positioned at different locations relative to the cavity in which the aerosol generating article may be positioned.
  • the metal materials of the metal prisms included in the plurality of heaters (850) may be the same or different from each other.
  • the light source (855) may be configured to transmit an optical signal at a predetermined angle toward the heater (850).
  • the light source (855) may transmit an optical signal at an angle such that total reflection may occur at a surface of the heater (850) (e.g., a surface of the substrate (551, 651, 751) and/or a surface (654B, 654C1, 654C2, 654C3) of the metal prism (554, 654, 754).
  • the light source (855) may transmit an optical signal at an arbitrary angle toward the heater (850).
  • the light source (855) may be configured to transmit light in the ultraviolet band, the visible band, and/or the infrared band. In some embodiments, the light source (855) may be configured to transmit light in the visible band (e.g., from about 380 nm to about 780 nm).
  • the light source (855) may be configured to transmit light of a band corresponding to the material of the metal particles of the metal prism (e.g., the metal prism (554, 654, 754)) included in the heater (850).
  • the light source (855) may transmit light of a wavelength band corresponding to an average maximum absorbance according to the material of the metal particles.
  • the light source (855) may transmit light having a wavelength of about 630 nm or about 800 nm.
  • the light source (855) can transmit light at any suitable output.
  • the light source (855) can transmit light at an output of about 1,000 mW.
  • the light source (855) may include a light emitting diode and/or a laser.
  • the light emitting diode and/or laser may be of a type and/or size suitable for inclusion in the aerosol generating device (800).
  • the laser may include a solid state laser and/or a semiconductor laser.
  • the aerosol generating device (800) may include a plurality of light sources (855).
  • the plurality of light sources (855) may be implemented as the same type of light source. At least some of the plurality of light sources (855) may be implemented as different types of light sources.
  • At least one of the plurality of light sources (855) may be configured to irradiate a portion of the heater (850).
  • a portion of the heater (850) irradiated by one of the plurality of light sources (855) may be different from a portion of the heater (850) irradiated by another light source (855).
  • the plurality of light sources (855) may irradiate different portions of a single heater (850) or may irradiate each of the plurality of heaters (850).
  • the plurality of light sources (855) may be configured to irradiate substantially simultaneously.
  • the irradiation time of one of the plurality of light sources (855) may be different from the irradiation time of another light source (855).
  • the plurality of light sources (855) can irradiate the heater (850) for substantially the same amount of time.
  • the irradiation time of one of the plurality of light sources (855) may be different from the irradiation time of another light source (855).
  • the plurality of light sources (855) can transmit light of substantially the same wavelength band.
  • the band of light irradiated by one of the plurality of light sources (855) may be different from the band of light irradiated by another light source (855).
  • the plurality of light sources (855) can irradiate the heater (850) with substantially the same illuminance.
  • the illuminance of one of the plurality of light sources (855) may be different from the illuminance of another light source (855).
  • Fig. 21 is a perspective view of a heater in an aerosol generating device according to one embodiment.
  • Fig. 22 is a cross-sectional view along line 22-22 of the heater of Fig. 21.
  • Fig. 23 is an enlarged view of portion A of Fig. 22.
  • the aerosol generating device (900) may include a cartridge (905).
  • the cartridge (905) may include at least one reservoir (see FIG. 20) configured to hold a liquid composition therein.
  • the cartridge (905) may be built into the aerosol generating device (900) during manufacture of the aerosol generating device (900).
  • the cartridge (905) may not be included in the aerosol generating device (900) during manufacture of the aerosol generating device (900).
  • the cartridge (905) may be provided to the aerosol generating device (900) and may be removed from the aerosol generating device (900).
  • the cartridge (905) may include a hole (911).
  • the hole (911) may be positioned on one surface of the cartridge (e.g., an outer bottom surface in the -Z direction).
  • the aerosol generating device (900) may include a heater (950).
  • the heater (950) may be configured to generate heat.
  • the generated heat may be transferred to an aerosol generating material.
  • the aerosol generating material may be heated to a target temperature (e.g., about 350° C.) by the transferred heat.
  • the aerosol generating material in an aerosol form may be carried by a carrier (e.g., air) introduced through at least one vent provided in the aerosol generating device (900) and then transferred to a user through a mouth end of the aerosol generating device (900).
  • a carrier e.g., air
  • the heater (950) may include a substrate (951).
  • the substrate (951) may include a first side (951A) and a second side (951B) opposite the first side (951A).
  • a first surface (951A) of the substrate (951) can include a curved surface.
  • the first surface (951A) can define a cavity (CV).
  • the first surface (951A) can define a cavity (CV) that is substantially hemispherical in shape.
  • the first surface (951A) can be substantially continuous over the entire area. Some areas of the first surface (951A) can be discontinuous with other areas.
  • the first surface (951A) can have a radius of curvature (R) that is substantially constant over the entire area. The radius of curvature (R) of some areas of the first surface (951A) can be different from the radius of curvature (R) of other areas.
  • the second surface (951B) of the substrate (951) can include a curved surface.
  • the second surface (951B) can be substantially parallel to the first surface (951A). Some areas of the second surface (951B) may not be parallel to some areas of the first surface (951A) that it faces. In an embodiment not shown, at least some areas of the second surface (951B) can be substantially flat.
  • the substrate (951) may be implemented as a three-dimensional solid that can be expressed in terms of an azimuth angle and an altitude angle.
  • the substrate (951) may include a solid in a dome shape. Any first region (A1) of the substrate (951) may face any second region (A2) that is at least partially different from (e.g., does not at least partially overlap with) the first region (A1).
  • the substrate (951) may be implemented as a three-dimensional solid having an azimuth angle of substantially 360 degrees and an elevation angle in a range of about -60 degrees to 90 degrees.
  • the heater (950) may include an aperture (952).
  • the aperture (952) may be configured to allow passage of light into the cavity (CV).
  • the aperture (952) may be defined by at least one edge of the first side (951A) of the substrate (951).
  • the aperture (952) may be substantially aligned with the hole (911).
  • the heater (950) may include a surface plasmon resonance (SPR) structure (953) configured to generate heat by SPR.
  • the SPR structure (953) may include a plurality of prisms (554) as described with reference to FIGS. 12 to 15.
  • the SPR structure (953) may also include a metal prism (654) as described with reference to FIG. 16.
  • the SPR structure (953) may also include a plurality of metal particles (P1, P2, P3, P4) as described with reference to FIGS. 17 to 19.
  • the SPR structure (953) may include a film of a metal material (e.g., gold (Au)) having a specific thickness (e.g., a thickness of about 10 nm or less).
  • a metal material e.g., gold (Au)
  • the SPR structure (953) may be disposed on a first surface (951A) of a substrate (951).
  • the SPR structure (953) can be disposed substantially over the entire area of the first surface (951A).
  • the SPR structure (953) can also be disposed in a local area of the first surface (951A).
  • the heater (950) may include an absorption layer (954).
  • the absorption layer (954) may be configured to absorb light transmitting through the substrate (951) in a direction from the first side (951A) of the substrate (951) toward the second side (951B).
  • the absorption layer (954) may also be configured to absorb light reflected within the heater (950).
  • the absorption layer (954) may increase the light utilization efficiency of the heater (950).
  • the absorbent layer (954) can be disposed on or over the second surface (951B).
  • the absorbent layer (954) can be disposed substantially over the entire area of the second surface (951B).
  • the absorbent layer (954) can also be disposed in a local area of the second surface (951B).
  • the absorbent layer (954) can be attached to the second surface (951B).
  • the absorbent layer (954) can be separated from the aerosol-generating material contained in the reservoir of the cartridge (905). Accordingly, the safety of the aerosol inhaled by the user can be ensured.
  • the absorbent layer (954) may include a material having a color with relatively high saturation (e.g., black).
  • the absorbent layer (954) may have a heat resistance of about 800 degrees Celsius.
  • the heater (950) may include a reflective layer (955).
  • the reflective layer (955) may be configured to reflect light transmitting through the substrate (951) in a direction from the first side (951A) of the substrate (951) toward the second side (951B) of the substrate (951) toward the substrate (951) or toward the absorbing layer (954).
  • the reflective layer (955) may be spaced apart from the absorbing layer (954) by a gap (G).
  • the reflective layer (955) may be disposed substantially over the entire area of the absorbing layer (954).
  • the reflective layer (955) may also be disposed in a local area of the absorbing layer (954).
  • the reflective layer (955) may be disposed on the absorbing layer (954) without a gap (G). In an embodiment not shown, the reflective layer (955) may be disposed on the second side (951B) of the substrate (951), and the absorbing layer (954) may be disposed on the reflective layer (955).
  • the reflective layer (955) may include any material suitable for reflecting light.
  • the reflective layer (955) may include at least one or a combination of gold, silver, copper, or any other metal material suitable for reflection.
  • the reflective layer (955) may have any thickness suitable for reflecting light.
  • the thickness of the reflective layer (955) may be about 10 nm or less.
  • the heater (950) may include a heat transfer member (956).
  • the heat transfer member (956) may be configured to transfer heat generated by the SPR structure (953) to the aerosol generating material.
  • the heat transfer member (956) may include an enclosure portion (956A) that substantially surrounds the substrate (951), the SPR structure (953), the absorbent layer (954), and the reflective layer (955), and a non-enclosure portion (956B) that does not surround them.
  • the enclosure portion (956A) may include a shape corresponding to the shape of the cavity (CV), such as a dome shape.
  • the non-enclosure portion (956B) may extend or expand along one surface (e.g., an inner bottom surface) of the cartridge (905) from the enclosure portion (956A).
  • the heat transfer element (956) can transfer heat in a conductive manner.
  • a gap can be formed on either side of the heat transfer element (956), and heat can be transferred in a convective or radiative manner.
  • the heat transfer material (956) may include a metallic material.
  • the heat transfer material (956) may include aluminum or copper.
  • the heat transfer element (956) may have different materials.
  • an enclosure portion (956A) corresponding to an area of the substrate (951) where light is irradiated e.g., a curved area
  • a non-enclosure portion (956B) not corresponding to the area may have a second material.
  • the enclosure portion (956A) and the non-enclosure portion (956B) may have different thermal properties.
  • the thermal conductivity (e.g., 401 W/mK) of a first material (e.g., copper) forming the enclosure portion (956A) may be greater than the thermal conductivity (e.g., 237 W/mK) of a second material (e.g., aluminum) forming the non-enclosure portion (956B).
  • the thermal capacity of the enclosure portion (956A) may be less than the thermal capacity of the non-enclosure portion (956B).
  • the aerosol generating device (900) may include a wick (960).
  • the wick (960) may be configured to transfer aerosol generating material contained in a reservoir of the cartridge (905) to the heater (950).
  • the wick (960) may be connected to at least one portion that stores the aerosol generating material.
  • the wick (960) may include an extended region (960A) extending along one surface of the cartridge (e.g., an inner bottom surface), and a covered region (960B) covering a portion or substantially the entire area of the exterior of the heater (950).
  • the extended region (960A) may be disposed on the non-enclosed portion (956B).
  • the covered region (960B) may be disposed on the enclosed region (956A).
  • the extended region (960A) and the covered region (960B) may be connected to each other in fluid communication.
  • the contact area between the heater (950) and the cover area (960B) can be increased.
  • the contact area between the wick (960) and the carrier e.g., air) can be increased.
  • the aerosol generating device (900) may include an optical fiber (970).
  • the optical fiber (970) may be configured to transmit light generated from a light source (e.g., the light source (855) of FIG. 20) to the heater (950).
  • the optical fiber (970) may be directly connected to the light source.
  • At least one optical element e.g., a lens, a mirror, and/or a collimator
  • the optical fiber (970) may be connected to the hole (911).
  • the optical fiber (970) may extend into the aperture (952).
  • the optical fiber (970) may be tightly coupled to the hole (911) and/or the aperture (952).
  • Fig. 24 is a schematic drawing of an aerosol generating device according to one embodiment.
  • Fig. 25 is a drawing of a part of an SPR heater of an aerosol generating device according to one embodiment.
  • the aerosol generating device (1000) may include a housing (1010), which may be referred to as a “body.”
  • the housing (1010) may include a mouth end (1011), and a device end (not shown) opposite the mouth end (1011).
  • the housing (1010) may include a mouthpiece (1012).
  • the mouthpiece (1012) may be positioned at or adjacent to the mouth end (1011).
  • the housing (1010) may include an airflow path leading to the mouthpiece (1012).
  • the aerosol generating device (1000) may include a chamber (1020).
  • the chamber (1020) may be configured to be coupled into and/or decoupled from the housing (1010).
  • the chamber (1020) may include a first reservoir (1021).
  • the first reservoir (1021) may contain a first aerosol generating material (M1).
  • the first aerosol generating material (M1) may comprise a first liquid composition.
  • the chamber (1020) may include a second reservoir (1022).
  • the second reservoir (1022) may contain a second aerosol generating material (M2).
  • the second aerosol generating material (M2) may comprise a second liquid composition.
  • the first liquid composition and the second liquid composition may comprise at least partially identical components.
  • the first liquid composition and the second liquid composition may be composed of different components.
  • the first storage (1021) and the second storage (1022) can be arranged in a circumferential direction of the housing (1010) (e.g., in a circumferential direction with respect to the Z-axis).
  • the first storage (1021) and the second storage (1022) can be spaced apart from each other.
  • the chamber (1020) may include a single reservoir (1021 or 1022). In an embodiment not shown, the chamber (1020) may include three or more reservoirs.
  • the aerosol generating device (1000) may include a heater (1030).
  • the heater (1030) may be configured to generate heat by surface plasmon resonance (SPR).
  • SPR surface plasmon resonance
  • “Surface plasmon resonance” refers to the collective oscillation of electrons propagating along the interface of metal particles with a medium.
  • the collective oscillation of electrons of the metal particles may be generated by light propagating from outside the heater (1030). 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 heater (1030) is applied.
  • the heater (1030) may include a substrate (1031).
  • the substrate (1031) may include a first end (1031A) positioned toward the mouth end (1011) or the mouthpiece (1012).
  • the first end (1031A) may be a substantially closed surface or may include a substantially closed surface.
  • the first end (1031A) may substantially prevent light from passing through the first end (1031A).
  • the substrate (1031) may include a second end (1031B) positioned toward the device end (not shown).
  • the second end (1031B) may be positioned opposite the first end (1031A).
  • the second end (1031B) may be at least partially open.
  • the second end (1031B) can include an opening (1031B1).
  • the substrate (1031) can include a side (1031C) extending between the first end (1031A) and the second end (1031B).
  • the first end (1031A), the second end (1031B), and the side (1031C) can substantially define a cylindrical shape of the substrate (1031).
  • the substrate (1031) can include an exterior surface (F1). At least a portion of the exterior surface (F1) (e.g., an exterior side surface) can at least partially face at least one of the first reservoir (1021) and the second reservoir (1022).
  • the substrate (1031) can include an interior surface (F2).
  • the interior surface (F2) can be positioned opposite the exterior surface (F1).
  • the inner surface (F2) may include an inner end surface (e.g., a -Z direction surface) of the first end portion (1031A) and an inner side surface of the side portion (1031C).
  • the inner surface (F2) may define a hollow portion (1031D).
  • the hollow portion (1031D) may have a substantially cylindrical space.
  • the substrate (1031) may have a relatively small volume.
  • the diameter or width of the side portion (1031C) may be about 1 mm
  • the distance between the first end (1031A) and the second end (1031B) e.g., the length of the substrate (1031)
  • the length of the substrate (1031) may be about 5 mm to about 10 mm.
  • the substrate (1031) may be formed of various materials.
  • the substrate (1031) may be formed of a metal material such as aluminum, glass, silicon (Si), silicon oxide (SiO2), sapphire, polystyrene, polymethyl methacrylate, and/or any other suitable material.
  • the substrate (1031) may be formed of any one or a combination of glass, silicon (Si), silicon oxide (SiO2), and sapphire.
  • the substrate (1031) may include a material having a relatively low heat transfer coefficient. This may allow heat to be transferred to only some areas on the substrate (1031).
  • the substrate (1031) may exhibit electrical conductivity.
  • the substrate (1031) may also exhibit electrical insulation.
  • the substrate (1031) can be formed of any material having a thermal conductivity suitable for use in an environment in which the heater (1030) is placed.
  • the substrate (1031) 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 (1031) 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.
  • the heater (1030) may include a metal layer (1032) disposed on the inner surface (F2).
  • the metal layer (1032) may include a plurality of metal particles. Electrons constituting each of the plurality of metal particles may collectively vibrate when receiving light. Excitation of the electrons may generate thermal energy.
  • the plurality of metal particles can have a nanoscale size.
  • the plurality of metal particles can have an average maximum diameter of less than about 1 ⁇ m.
  • the plurality of metal particles can have an average maximum diameter of less than about 700 nm, less than about 600 nm, less than about 500 nm, less than about 400 nm, less than about 300 nm, less than about 200 nm, less than about 150 nm, or less than about 100 nm.
  • the plurality of metal particles can be formed of any material suitable for generating heat.
  • 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).
  • a particular wavelength band e.g., a visible light wavelength band, i.e., from about 380 nm to about 780 nm.
  • 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.
  • 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.
  • the plurality of metal particles can be formed of a metal material having an average maximum absorbance in a wavelength band of between about 430 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 can depend on the type of the substrate (1031), the size of the metal layer (1032), and/or the shape of the metal layer (1032) in addition to the metal material.
  • the metal layer (1032) may have a thickness of about 10 nm or less. If the metal layer (1032) has a thickness exceeding 10 nm, it may reduce the exothermic reaction of the plurality of metal particles forming the metal layer (1032), and consequently reduce the thermal efficiency of the heater (1030).
  • the heater (1030) may include an absorbing layer (1033) configured to absorb light.
  • the absorbing layer (1033) may be configured to absorb light transmitting through the substrate (1031) in a direction from the inner surface (F2) of the substrate (1031) toward the outer surface (F1).
  • the absorbing layer (1033) may increase light utilization efficiency of the heater (1030).
  • the absorbing layer (1033) may be disposed on or over the outer surface (F1).
  • the absorbing layer (1033) may be disposed substantially over the entire area of the outer surface (F1).
  • the absorbing layer (1033) may also be disposed on a local area of the outer surface (F1), such as an outer side surface.
  • the absorbing layer (1033) may be attached to the outer surface (F1).
  • the absorbent layer (1033) may be spaced apart from the first reservoir (1021) and the second reservoir (1022). This may ensure the safety of the aerosol inhaled by the user.
  • the absorbent layer (1033) may include a material having a color with relatively high saturation (e.g., black).
  • the absorbent layer (1033) may include a material capable of forming a black matrix, such as carbon black.
  • the absorbent layer (1033) may have a heat resistance of about 800 degrees Celsius.
  • the heater (1030) may include a reflective layer (1034).
  • the reflective layer (1034) may be configured to reflect light transmitting through the substrate (1031) in a direction from the inner surface (F2) of the substrate (1031) toward the outer surface (F1) toward the inner surface (F2).
  • the reflective layer (1034) may be disposed on the absorbing layer (1033). In an embodiment not shown, the reflective layer (1034) may be spaced apart from the absorbing layer (1033) by a gap.
  • the reflective layer (1034) may be disposed substantially over the entire area of the absorbing layer (1033).
  • the reflective layer (1034) may be disposed on a localized area of the absorbing layer (1033).
  • the reflective layer (1034) may include any material suitable for reflecting light.
  • the reflective layer (1034) can include at least one or a combination of gold, silver, copper, or any other suitable metallic material for reflection.
  • the reflective layer (1034) can have any thickness suitable for reflecting light.
  • the thickness of the reflective layer (1034) can be about 10 nm or less.
  • the heater (1030) may include a heat transfer plate (1035).
  • the heat transfer plate (1035) may be configured to transfer heat generated by surface plasmon resonance to the wick (1040).
  • the heat transfer plate (1035) may transfer heat in a conductive manner.
  • a gap may be formed between the heat transfer plate (1035) and the wick (1040), and the heat transfer plate (1035) may transfer heat to the wick (1040) in a convective or radiative manner.
  • the heat transfer plate (1035) may include a metal material.
  • the heat transfer plate (1035) may include aluminum or copper.
  • the heater (1030) may be configured to be separated from the chamber (1020).
  • the heater (1030) may not be included in a cartridge (e.g., cartridge (19) of FIGS. 1 to 11) including the chamber (1020). This may reduce the manufacturing cost of the cartridge when manufacturing the cartridge, and may enable semi-permanent use of the heater (1030).
  • the aerosol generating device (1000) may include a wick (1040).
  • the wick (1040) may be configured to transfer an aerosol generating material from the chamber (1020) to the heater (1030). Heat generated from the heater (1030) may cause the aerosol generating material held in the wick (1040) to change phase into an aerosol.
  • the wick (1040) may include a first wick end (1041) connected to at least one of a first reservoir (1021) and a second reservoir (1022).
  • the wick (1040) may include a second wick end (1042) opposite the first wick end (1041).
  • the second wick end (1042) may be substantially coplanar with a second surface (1042) of the substrate (1031).
  • the second wick end (1042) can be at any location on the outer face (F1).
  • the wick (1040) can include a wick extension (1043) extending along the outer face (F1) (e.g., the outer side face) between the first wick end (1041) and the second wick end (1042).
  • the wick extension (1043) can be in at least partial contact with the outer face (F1).
  • the aerosol generating device (1000) may include an optical fiber (1050).
  • the optical fiber (1050) may be configured to transmit light generated from a light source (not shown) to the heater (1030).
  • the optical fiber (1050) may be coupled to the aperture (1031B1). Light passing through the aperture (1031B1) via the optical fiber (1050) may enter the hollow portion (1031D) and may travel toward the inner surface of the substrate (1031).
  • the optical fiber (1050) can be tightly coupled to the opening (1031B1). This can increase the efficiency of light passing through the optical fiber (1050) to be transmitted to the hollow portion (1031D) to about 99%. This allows the amount of light used in the heater (1030) to be controlled to a predictable level, which in turn reduces heat loss from the heater (1030) and secures thermal stability of the heater (1030).
  • the aerosol generating device (1000) may include an internal light source (not shown) configured to emit light.
  • the internal light source may include a laser light source.
  • the internal light source may emit light in the ultraviolet, visible, and/or infrared bands.
  • the aerosol generating device (1000) may also utilize an external light source located outside the aerosol generating device (1000) without an internal light source.
  • FIG. 26 is a drawing showing a device for manufacturing an SPR heater of an aerosol generating device according to one embodiment.
  • the manufacturing device (1100) can manufacture an SPR heater (e.g., heater (1030)) of an aerosol generating device (e.g., the aerosol generating device (1000) of FIGS. 24 and 25).
  • an SPR heater e.g., heater (1030)
  • an aerosol generating device e.g., the aerosol generating device (1000) of FIGS. 24 and 25.
  • the manufacturing device (1100) may include a holder (1104).
  • the holder (1104) may be configured to support a substrate (1102) (e.g., substrate (1031) of FIGS. 24 and 25).
  • the holder (1104) may include a substantially circular or oval disk, but is not limited thereto, and may include disks of various shapes (e.g., polygonal).
  • the holder (1104) can be configured to rotate about a rotation axis defined in the holder (1104).
  • a substrate (1102) disposed on one surface of the holder (1104) can rotate about the rotation axis.
  • the rotation of the holder (1104) can enable uniform deposition of the substrate (1102).
  • the holder (1104) may be configured to heat the substrate (1102).
  • the substrate (1102) disposed on one surface of the holder (1104) may be deposited with one or more deposition materials in a defined temperature environment.
  • the substrate (1102) may be preheated to about 800° C. to 1,100° C.
  • the manufacturing device (1100) can include a target (1106).
  • the target (1106) can accommodate at least one type of deposition material (DM) (e.g., metal particles such as gold (Au) or silver (Ag), carbon black, etc.).
  • the target (1106) can deposit at least one type of deposition material (DM) in a gaseous state onto one surface of the substrate (1102) (e.g., the inner surface of the first end (1031A) and the inner side surface of the side (1031C) of FIGS. 24 and 25).
  • the target (1106) can be oriented toward the holder (1104) for uniform deposition on the substrate (1106).
  • the manufacturing device (1100) may include an evaporator (1108).
  • the evaporator (1108) may change a deposition material (DM) into a gas phase to be deposited on a substrate (1102) on a holder (1104).
  • the evaporator (1108) may include a high voltage power supply (1110) and a cathode (1112) electrically connected to the high voltage power supply (1110).
  • the cathode (1112) may accelerate electrons to form an electron beam (E).
  • the electron beam (E) generated from the cathode (1112) may be transmitted onto a target (1106) and toward the deposition material (DM) on the target (1106) under a magnetic field (B) of a predetermined strength and direction.
  • the deposition material (DM) may be changed into a gas phase by thermal energy generated by the electron beam (E).
  • Deposition using an electron beam (E) can be advantageous for deposition of complex small structures (e.g., cylindrical substrates (1031) of FIGS. 24 and 25).
  • a general vapor deposition method can form an uneven deposition layer in the deposition of complex structures. Therefore, when depositing a hollow cylindrical structure with both ends open, deposition should be performed on the substrate (1102) in a direction toward one end, and then the orientation of the substrate (1102) should be changed so that the opposite end faces the target (1106), and then deposition should be performed on the substrate (1102) in a direction toward the opposite end.
  • an impregnation method of a deposition material should be used.
  • deposition using an electron beam (E) enables uniform deposition over the entire inner surface of the first end (1031A) and the entire inner side surface of the side portion (1031C) without changing the orientation with respect to the substrate (1102) and without an impregnation process of the deposition material (DM), for example, in the structure of the substrate (1031) of FIGS. 24 and 25.
  • the evaporator (1108) can be configured to evaporate various types of deposition materials (DM).
  • the evaporator (1108) can evaporate a first deposition material (e.g., carbon black) on a target (1106) and deposit it first on a substrate (1102) to form a first layer (e.g., an absorption layer (1033) of FIGS. 24 and 25), and then evaporate a second deposition material (e.g., metal particles) on the target (1106) and deposit it on the first layer to form a second layer (e.g., a metal layer (1032) of FIGS. 24 and 25).
  • a first deposition material e.g., carbon black
  • a second deposition material e.g., metal particles
  • the manufacturing device (1100) may include a magnetic field generator (1114).
  • the magnetic field generator (1114) may be configured to generate a magnetic field (B) of any strength and direction suitable to cause the electron beam (E) to move from the cathode (1112) toward the target (1106) and the deposition material (DM).
  • the manufacturing device (1100) may include a chamber (1116) configured to accommodate a holder (1104), a target (1106), and at least partially an evaporator (1108).
  • the chamber (1116) may have a vacuum environment.
  • the chamber (1116) may have an atmosphere at a pressure of about 10 -2 to about 10 -4 Pa.
  • the manufacturing device (1100) may include a vacuum pump (1118).
  • the vacuum pump (1118) may be configured to exhaust gas from the chamber (1116) so as to maintain a defined vacuum environment in the chamber (1116).
  • 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 have their respective configurations or functions combined or used together.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Catching Or Destruction (AREA)
  • Resistance Heating (AREA)

Abstract

Ce dispositif de chauffage peut comprendre : un substrat comprenant une première surface et une seconde surface opposée à la première surface, la première surface comprenant une surface incurvée et la première surface définissant une cavité ; une structure de résonance plasmonique de surface (RPS) qui est conçue pour générer de la chaleur au moyen d'une RPS et qui est disposée sur la première surface ; et une ouverture qui est conçue pour permettre à la lumière de passer à travers la cavité et est définie par la première surface.
PCT/KR2023/021215 2023-02-13 2023-12-21 Dispositif de génération d'aérosol comprenant un dispositif de chauffage par résonance plasmonique de surface et dispositif de fabrication d'un dispositif de chauffage par résonance plasmonique de surface Ceased WO2024172273A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23923072.5A EP4666890A1 (fr) 2023-02-13 2023-12-21 Dispositif de génération d'aérosol comprenant un dispositif de chauffage par résonance plasmonique de surface et dispositif de fabrication d'un dispositif de chauffage par résonance plasmonique de surface
CN202380093001.2A CN120659559A (zh) 2023-02-13 2023-12-21 包括表面等离子体共振加热器的气溶胶生成装置及用于制造表面等离子体共振加热器的装置

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR20230018498 2023-02-13
KR10-2023-0018498 2023-02-13
KR20230018489 2023-02-13
KR10-2023-0018489 2023-02-13
KR10-2023-0073908 2023-06-09
KR1020230073908A KR20240126385A (ko) 2023-02-13 2023-06-09 발열체 및 이를 포함하는 에어로졸 발생 장치
KR10-2023-0139367 2023-10-18
KR1020230139367A KR20240126390A (ko) 2023-02-13 2023-10-18 표면 플라즈몬 공명 히터를 제조하기 위한 장치

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EP (1) EP4666890A1 (fr)
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CN118945970B (zh) * 2024-10-14 2024-12-10 中国矿业大学(北京) 碳基能源层原位转化用的等离子体发生器和方法

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US20210294009A1 (en) * 2017-12-25 2021-09-23 National University Corporation Hokkaido University Light absorbing device, manufacturing method thereof, and photoelectrode
KR20210142466A (ko) * 2020-05-18 2021-11-25 주식회사 케이티앤지 에어로졸 생성 장치 및 이를 포함하는 에어로졸 생성 시스템
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KR20210078347A (ko) * 2019-12-18 2021-06-28 주식회사 케이티앤지 에어로졸 생성 장치
KR20210142466A (ko) * 2020-05-18 2021-11-25 주식회사 케이티앤지 에어로졸 생성 장치 및 이를 포함하는 에어로졸 생성 시스템
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