WO2025139459A1 - Aerosol generation apparatus - Google Patents

Abstract

The present application relates to the technical field of aerosol generation, and provides an aerosol generation apparatus. The aerosol generation apparatus comprises a support, a first circuit board and a second circuit board; the support is provided with a first side and a second side that are opposite to each other in the thickness direction; the second circuit board is electrically connected to the first circuit board; one of the first circuit board and the second circuit board is arranged on the first side, and the other of the first circuit board and the second circuit board is arranged on the second side. The present application respectively arranges the first circuit board and the second circuit board on the two opposite sides of the support in the thickness direction, and fully uses the space of the support in the thickness direction, thereby increasing the area of the first circuit board and the area of the second circuit board, and being conducive to arrange electronic elements.

Description

An aerosol generating device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with application number 202311872347.0 and application date December 29, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference.

Technical Field

The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device.

Background Art

This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

The aerosol generating device is used to heat the aerosol generating substrate to generate an aerosol. In the related art, the aerosol generating device includes a plurality of circuit boards, which are electrically connected to each other through cables. The plurality of circuit boards occupy too much space in the aerosol generating device, resulting in low space utilization of the aerosol generating device, making it difficult to reduce the volume of the aerosol generating device, and not conforming to the development trend of making the aerosol generating device more portable.

Summary of the invention

In view of this, embodiments of the present application hope to provide an aerosol generating device that can reduce the volume.

To achieve the above objectives, the present application provides an aerosol generating device, comprising:

a bracket having a first side and a second side opposite to each other in a thickness direction;

a first circuit board;

The second circuit board is electrically connected to the first circuit board. One of the first circuit board and the second circuit board is arranged on the first side, and the other of the first circuit board and the second circuit board is arranged on the second side.

In some embodiments, the first circuit board is a control board, and the second circuit board is a flexible circuit board.

In some embodiments, a portion of the flexible circuit board that bypasses a side surface of the bracket along the width direction and extends to the first side is a connecting portion, and the connecting portion is connected to the control board.

In some embodiments, the aerosol generating device includes an indicating element and/or an operating element, and the indicating element and/or the operating element are arranged on a portion of the connecting portion located on a side of the bracket along the width direction.

In some embodiments, the aerosol generating device includes an adapter plate and an electrical interface, the adapter plate is electrically connected to the flexible printed circuit board, and the electrical interface is arranged on the adapter plate.

In some embodiments, the control board is disposed at the top of the bracket along the length direction, the adapter board is disposed at the bottom of the bracket along the length direction, and the flexible circuit board extends from where the control board is located to where the adapter board is located.

In some embodiments, the aerosol generating device includes a vibration element, and the vibration element is disposed at the bottom of the bracket and located on the adapter plate.

In some embodiments, the aerosol generating device includes a battery, and one of the first circuit board and the second circuit board and the battery are arranged along the length direction of the bracket.

In some embodiments, the bracket is formed with a placement groove on the first side which is open toward one side in the thickness direction, and the battery is placed in the placement groove.

In some embodiments, in the width direction, the distance between the side edge of the battery and the corresponding outer side edge of the bracket is 0.6 mm to 1 mm.

In some embodiments, at least a portion of the second circuit board is attached to a surface of the first side or a surface of the second side of the bracket.

In some embodiments, a groove is formed on one side of the bracket along the thickness direction, and at least a portion of the second circuit board is located in the groove.

In some embodiments, the second circuit board includes a first part and a second part, the groove includes a first area and a second area, the depth of the first area is greater than the depth of the second area, the first part is located in the first area, the second part is located in the second area, and the first part is used to set electronic components.

In some embodiments, a plane perpendicular to the thickness direction of the bracket is taken as a projection plane, and the projection of the first part is located within the projection range of the first circuit board.

In some embodiments, the aerosol generating device includes a heating component electrically connected to the first circuit board, and the heating component and the first circuit board are both arranged at the same end of the bracket along the length direction.

In some embodiments, a notch is formed on one side of the bracket along the width direction, and at least a portion of the heating component is accommodated in the notch. A portion of the first circuit board and the heating component are arranged side by side along the width direction of the bracket, and another portion of the first circuit board extends to the bottom of the heating component.

In the aerosol generating device provided in the embodiment of the present application, the first circuit board and the second circuit board are respectively arranged on two opposite sides of the bracket along the thickness direction. On the one hand, to a certain extent, it is avoided that the first circuit board and the second circuit board are arranged in the width direction of the bracket, resulting in an excessive increase in the size of the aerosol generating device in the width direction, causing inconvenience for the user to hold it; on the other hand, it is avoided that the first circuit board and the second circuit board are arranged in the length direction of the bracket, resulting in the overall length of the aerosol generating device being too long, or the area of the first circuit board and the second circuit board being too small, resulting in difficulty in layout of electronic components; the present application fully utilizes the space of the bracket along the thickness direction by arranging the first circuit board and the second circuit board respectively on two opposite sides of the bracket along the thickness direction, and increases the area of the first circuit board and the second circuit board under the same layout space, so as to facilitate the arrangement of electronic components.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an aerosol generating device in one embodiment of the present application;

FIG2 is a schematic diagram of a partial structure of the aerosol generating device and an aerosol generating article shown in FIG1 ;

FIG3 is a schematic structural diagram of the structure shown in FIG2 from another perspective;

FIG4 is a schematic diagram of the structure of a bracket in an embodiment of the present application;

FIG5 is a schematic structural diagram of the bracket shown in FIG4 from another perspective;

FIG. 6 is a schematic diagram of the structure shown in FIG. 2 from another viewing angle.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

In this application, a plurality includes two and more than two. The unit "mm" is millimeter.

Referring to FIGS. 1 to 3 , an embodiment of the present application provides an aerosol generating device 2000 , which includes a bracket 1 , a first circuit board 2 and a second circuit board 3 , wherein the bracket 1 has a first side 1 d and a second side 1 f opposite to each other in a thickness direction. The second circuit board 3 is electrically connected to the first circuit board 2 .

Both the first circuit board 2 and the second circuit board 3 can be used to realize electrical functions.

One of the first circuit board 2 and the second circuit board 3 is disposed on the first side 1d, and the other of the first circuit board 2 and the second circuit board 3 is disposed on the second side 1f. Exemplarily, in one embodiment, the first circuit board 2 is disposed on the first side 1d, and the second circuit board 3 is disposed on the second side 1f. In another embodiment, the second circuit board 3 is disposed on the first side 1d, and the first circuit board 2 is disposed on the second side 1f.

Exemplarily, the aerosol generating device 2000 is a portable aerosol generating device. For example, the aerosol generating device 2000 may be a handheld aerosol generating device. The contour shape of the aerosol generating device 2000 may be roughly in the shape of a long strip. In this way, it is convenient for the user to hold the aerosol generating device 2000 in his hand.

In the aerosol generating device 2000 provided in the embodiment of the present application, the first circuit board 2 and the second circuit board 3 are respectively arranged on two opposite sides of the bracket 1 along the thickness direction. On the one hand, to a certain extent, it is avoided that the first circuit board 2 and the second circuit board 3 are arranged along the width direction of the bracket 1, resulting in an excessive increase in the size of the aerosol generating device 2000 along the width direction, making it inconvenient for the user to hold it; on the other hand, it is avoided that the first circuit board 2 and the second circuit board 3 are arranged along the length direction of the bracket 1, resulting in the overall length of the aerosol generating device 2000 being too long, or the area of the first circuit board 2 and the second circuit board 3 being too small, resulting in difficulty in layout of electronic components; the present application fully utilizes the space of the bracket 1 along the thickness direction by respectively arranging the first circuit board 2 and the second circuit board 3 on two opposite sides of the bracket 1 along the thickness direction, increases the area of the first circuit board 2 and the second circuit board 3, and facilitates the arrangement of electronic components.

Exemplarily, in some embodiments, please refer to Figures 1 to 3, the aerosol generating device 2000 includes a housing 10, the bracket 1, the first circuit board 2 and the second circuit board 3 are all located in the housing 10, and a nozzle is formed at one end of the housing 10 along the length direction. The housing 10 is the appearance part of the aerosol generating device 2000, and provides protection for the bracket 1, the first circuit board 2 and the second circuit board 3. The nozzle is used for the user to inhale the aerosol. The contour shape of the housing 10 determines the contour shape of the aerosol generating device 2000. When the user is using the aerosol generating device 2000, the user holds the housing 10 in his hand and holds the nozzle in his mouth, with the first side 1d facing the user and the second side 1f away from the user, and the width direction is consistent with the left and right direction of the user.

It should be noted that the thickness direction of the bracket 1 is consistent with the thickness direction of the housing 10, the first side 1d of the bracket 1 is consistent with the first side of the housing 10, and the second side 1f of the bracket 1 is consistent with the second side of the housing 10. The length direction of the bracket 1 is consistent with the length direction of the housing 10, and the width direction of the bracket 1 is consistent with the width direction of the housing 10.

In one embodiment, referring to Figures 2 and 3, the first circuit board 2 is a control board 100, and the second circuit board 3 is a flexible circuit board 200. In this way, the space in the thickness direction is fully utilized, and the flexible circuit board 200 can increase the area for placing electronic components, solving the problem of insufficient area of the control board 100.

The control panel 100 is used to control the start and stop of the aerosol generating device 2000, heating, detection of aerosol generating substrate, etc. In other words, the control panel 100 can be used to control the whole operation of the aerosol generating device 2000 to realize automatic control of the aerosol generating device 2000.

The flexible printed circuit board 200 (FPCB) is flexible and can be bent and folded freely, and can be stretched and moved arbitrarily in three-dimensional space. The flexible printed circuit board 200 can realize the integration of assembly and wiring of electronic components, and has high flexibility. The flexible circuit is electrically connected to the control board 100, thereby reducing the cables used for electrical connection, improving space utilization, and further reducing the volume of the aerosol generating device 2000.

The control board 100 may be a hard PCB (Printed Circuit Board). Compared with FPC, hard PCB is harder than FPC and usually cannot be bent or folded freely.

Exemplarily, the thickness of the control board 100 is 0.6 mm-1.0 mm, for example, the thickness of the control board 100 is 0.6 mm, 0.8 mm or 1.0 mm, etc. The control board 100 has good support force so as to carry electronic components without deformation, and the thickness is not too large.

Exemplarily, the thickness of the flexible circuit board 200 is less than 0.6 mm, for example, the thickness of the flexible circuit board 200 is 0.15 mm, etc. The thickness of the flexible circuit board 200 is thinner than that of the control board 100, and the thickness can be reduced by about 0.5 mm to 0.8 mm compared to the electrical connection with a cable (the diameter of the cable is 0.5 mm to 1.0 mm), which is conducive to reducing the thickness of the whole machine while meeting the functions.

In some embodiments, the control board 100 can be a double-sided board, that is, both end surfaces of the control board 100 along the thickness direction can be used to set electronic components. In this way, with the plane perpendicular to the thickness direction as the projection surface, more electronic components can be set under the condition that the control board 100 has the same projection area.

Electronic components are basic elements in electronic circuits, usually in independent packages, and have two or more leads or metal contacts. Electronic components are arranged on the first circuit board 2 and/or the second circuit board 3 to form electronic circuits with specific functions.

In some embodiments, both the first circuit board 2 and the second circuit board 3 may be hard PCBs. For example, the first circuit board 2 is the control board 100, and the second circuit board 3 is the auxiliary control board. The auxiliary control board plays an auxiliary control role and provides auxiliary control functions for the control board 100.

In one embodiment, referring to FIGS. 2 to 4 , the portion of the flexible circuit board 200 that bypasses one side of the bracket 1 along the width direction and extends to the first side 1d is the connecting portion 230, and the connecting portion 230 is connected to the control board 100. That is, the connecting portion 230 is folded to one side of the bracket 1 along the width direction and is electrically connected to the control board 100. By utilizing the flexibility of the flexible circuit board 200, a portion of the flexible circuit board 200 bypasses one side of the bracket 1 along the width direction, so that the electrical connection between the flexible circuit board 200 and the control board 100 can be achieved without setting a cable.

In one embodiment, the flexible printed circuit board 200 can be plugged into or welded with the control board 100 to achieve electrical connection.

In one embodiment, referring to FIGS. 1 to 3 , the aerosol generating device 2000 includes an indicating element 4 and/or an operating element 11, and the indicating element 4 and/or the operating element 11 are arranged on the portion of the connecting portion 230 located on the side of the bracket 1 along the width direction. That is, the indicating element 4 is located on one side of the bracket 1 along the width direction and is electrically connected to the flexible circuit board 200. In this way, by using the flexible circuit board 200 to realize the assembly of the indicating element 4, the circuit board for installing the indicating element 4 can be saved, and the cables and electrical plugs of the circuit board of the indicating element 4 can be reduced, so as to avoid increasing the difficulty of assembly. Arranging the indicating element 4 on one side of the bracket 1 along the width direction can not only avoid increasing the thickness of the aerosol generating device 2000, but also facilitate the user to visually view the indicating element 4 when using the aerosol generating device 2000, which meets the visual requirements of ergonomics.

The types of indicating elements 4 include, but are not limited to, indicator lights, for example, may be LEDs (Lighting Emitting Diodes).

The operating element 11 may be a button, such as a physical button or a touch button. The operating element 11 may be used to start or stop the aerosol generating device 2000 or to implement other functions.

In one embodiment, referring to FIGS. 1 to 3 , the aerosol generating device 2000 includes an adapter plate 5 and an electrical interface 6, the adapter plate 5 is electrically connected to the flexible circuit board 200, and the electrical interface 6 is disposed on the adapter plate 5. Specifically, the electrical interface 6 is electrically connected to the adapter plate 5. The electrical interface 6 can be used to electrically connect to external electrical devices. The electrical interface 6 can be used to supply power and/or transmit information. In this way, the flexible circuit board 200 can be used to realize the electrical connection between the control board 100 and the adapter plate 5, saving the cables between the control board 100 and the adapter plate 5 and reducing the difficulty of assembly.

Exemplarily, the adapter board 5 may also be a hard PCB board. In this way, the adapter board 5 can provide support for the electrical interface 6 to ensure that the electrical connection is stable and reliable.

Exemplarily, in one embodiment, the electrical interface 6 can be used for power supply, and the electrical interface 6 can be used to charge the battery 8 of the aerosol generating device 2000 and/or to power the control board 100. The type of the electrical interface 6 is not limited, and exemplary, the electrical interface 6 includes but is not limited to a USB (Universal Serial Bus) interface, a Micro Usb interface, a Type-C interface, or a Lighting interface, etc.

In one embodiment, referring to FIG. 2 and FIG. 3 , the control board 100 is disposed at the top of the bracket 1 along the length direction, the adapter board 5 is disposed at the bottom of the bracket 1 along the length direction, and the flexible circuit board 200 extends from where the control board 100 is located to where the adapter board 5 is located. Specifically, the electrical interface 6 is located at the bottom of the bracket 1 along the length direction. The control board 100 and the adapter board 5 are respectively disposed at the top and bottom ends of the bracket 1 along the length direction, which improves the space utilization of the whole machine and reduces the thickness of the whole machine.

In one embodiment, referring to FIG. 2 and FIG. 3 , the aerosol generating device 2000 includes a vibration element 7, which is disposed at the bottom of the bracket 1 and located on the adapter plate 5. Specifically, the vibration element 7 is electrically connected to the adapter plate 5. The vibration element 7 is electrically connected to the control board 100 through the flexible circuit board 200 and the adapter plate 5, so that the control board 100 controls the vibration element 7.

The vibration element 7 is used to provide vibration feedback. For example, the vibration feedback of the vibration element 7 can be used to prompt the user, for example, the vibration element 7 vibrates to indicate the start or stop of the aerosol generating device 2000.

The vibration element 7 includes, but is not limited to, a vibration motor.

In one embodiment, referring to Figures 2 and 3, the aerosol generating device 2000 includes a battery 8, and one of the first circuit board 2 and the second circuit board 3 and the battery 8 are arranged along the length direction of the bracket 1. The first circuit board 2 and the second circuit board 3 and the battery 8 are arranged along the length direction of the bracket 1, so that the battery 8 can have a larger area and the capacity of the battery 8 is as large as possible.

In one embodiment, referring to FIG. 2 and FIG. 3 , the battery 8 and the control board 100 are arranged on the same side of the bracket 1 in the thickness direction, and the control board 100 and the battery 8 are arranged in the length direction of the bracket 1. On the one hand, the thickness of the battery 8 is usually greater than the thickness of the control board 100, and the battery 8 and the control board 100 are both arranged on the same side of the bracket 1 in the thickness direction. The common thickness of the electronic components on the control board 100 and the control board 100 is roughly equivalent to the thickness of the battery 8. Through reasonable layout, the limited space in the housing 10 can be fully utilized to achieve a thin and light product. In addition, the distance between the battery 8 and the control board 100 is relatively close, which facilitates the electrical connection between the battery 8 and the control board 100 to power the whole machine. On the other hand, the control board 100 and the battery 8 are arranged in the length direction of the bracket 1, so that the control board 100 and the battery 8 have a large area, and the capacity of the battery 8 is as large as possible.

In one embodiment, please refer to FIG. 6 , in the width direction, the distance H between the side of the battery 8 and the corresponding outer side of the bracket 1 is 0.6 mm to 1 mm. That is to say, with the plane perpendicular to the thickness direction as the projection plane, the distance H between the side line of the battery 8 projection and the outer side line corresponding to the bracket 1 projection is 0.6 mm to 1 mm. In other words, the difference between the size of the bracket 1 along the width direction and the size of the battery 8 along the width direction is 1.2 mm to 2 mm. In this way, under the condition that the bracket 1 can wrap the side of the battery 8 along the width direction, the size of the battery 8 is as large as possible, thereby increasing the capacity of the battery 8.

In one embodiment, referring to FIGS. 2 to 4 , the bracket 1 is formed with a placement groove 1a on the first side 1d, which is open toward one side in the thickness direction, and the battery 8 is placed in the placement groove 1a. For example, the battery 8 can be placed in the placement groove 1a through the opening of the placement groove 1a toward one side in the thickness direction. In this way, the surface of the battery 8 and the control board 100 along the thickness direction can be as flush as possible to meet the requirements of being light and thin.

In one embodiment, referring to Figures 3 to 5, at least a portion of the second circuit board 3 is attached to the surface of the first side 1d or the surface of the second side 1f of the bracket 1. The bracket 1 provides support for the second circuit board 3 to prevent the second circuit board 3 from being deformed by force.

The second circuit board 3 may be a flexible circuit board 200. In one embodiment, referring to FIGS. 3 to 5 , at least a portion of the flexible circuit board 200 is attached to the surface of the first side 1d or the surface of the second side 1f of the bracket 1. The bracket 1 provides support for the flexible circuit board 200 to prevent the flexible circuit board 200 from being deformed by force.

In one embodiment, referring to Figures 3 to 5, a groove 1b is formed on one side of the bracket 1 along the thickness direction, and at least a portion of the second circuit board 3 is located in the groove 1b. The groove 1b can minimize the extent to which the second circuit board 3 protrudes from the first side or the second side of the bracket 1, and can further reduce the thickness of the aerosol generating device 2000.

In one embodiment, referring to FIGS. 3 to 5 , a groove 1b is formed on one side of the bracket 1 along the thickness direction, and at least a portion of the flexible circuit board 200 is located in the groove 1b. Exemplarily, the flexible circuit board 200 is embedded in the groove 1b and attached to the groove wall surface of the groove 1b. The groove 1b can minimize the extent to which the flexible circuit board 200 protrudes from the first side or the second side of the bracket 1, and can further reduce the thickness of the aerosol generating device 2000.

In one embodiment, please refer to Figures 3 to 5, the second circuit board 3 includes a first part 210 and a second part 220, the groove 1b includes a first area 1ba and a second area 1bb, the depth of the first area 1ba is greater than the depth of the second area 1bb, the first part 210 is located in the first area 1ba, the second part 220 is located in the second area 1bb, and the first part 210 is used to set electronic components. The first part 210 is used to set electronic components and realize the function of assembling electronic components, which is equivalent to increasing the area of the circuit board that can be used to arrange electronic components and reducing the pressure of the first circuit board 2 to arrange electronic components. The depth of the first area 1ba is relatively deep, so as to avoid the electronic components arranged in the first part 210 from increasing the thickness of the aerosol generating device 2000 to a certain extent, taking into account the layout requirements and thinness requirements of electronic components.

In one embodiment, referring to FIGS. 3 to 5 , the flexible circuit board 200 includes a first portion 210 and a second portion 220, the groove 1b includes a first area 1ba and a second area 1bb, the depth of the first area 1ba is greater than the depth of the second area 1bb, the first portion 210 is located in the first area 1ba, the second portion 220 is located in the second area 1bb, and the first portion 210 is used to set electronic components. The first portion 210 is used to set electronic components to realize the function of assembling electronic components of the flexible circuit board 200, which is equivalent to increasing the area of the circuit board that can be used to arrange electronic components and reducing the pressure of the control board 100 to arrange electronic components. The depth of the first area 1ba is relatively deep, so as to avoid the electronic components arranged in the first portion 210 from increasing the thickness of the aerosol generating device 2000 to a certain extent, taking into account the layout requirements and thinness requirements of the electronic components.

In one embodiment, referring to FIG. 2 and FIG. 3 , the projection plane is perpendicular to the thickness direction of the bracket 1, and the projection of the first part 210 is located within the projection range of the first circuit board 2. In this way, the projection of the first part 210 can be misaligned with the projection of the battery 8, thereby avoiding increasing the thickness of the part where the battery 8 is located, making the thickness of each part as consistent as possible, and realizing the reasonable use of the space in the housing 10.

In one embodiment, referring to FIG. 2 and FIG. 3 , the projection plane is perpendicular to the thickness direction of the bracket 1, and the projection of the first part 210 is located within the projection range of the control board 100. In this way, the projection of the first part 210 can be misaligned with the projection of the battery 8, thereby avoiding increasing the thickness of the part where the battery 8 is located, making the thickness of each part as consistent as possible, and realizing the reasonable use of the space in the housing 10.

In one embodiment, referring to Fig. 3, the adapter plate 5 and the flexible circuit board 200 are located on the same side of the bracket 1 along the thickness direction. In this way, the electrical connection between the flexible circuit board 200 and the adapter plate 5 is facilitated.

For example, in some embodiments, the flexible printed circuit board 200 and the adapter board 5 can be electrically connected by welding or plugging.

In one embodiment, referring to Figures 2 to 5, the aerosol generating device 2000 includes a heating component 9 electrically connected to the first circuit board 2, and the heating component 9 and the first circuit board 2 are both arranged at the same end of the bracket 1 along the length direction. Exemplarily, the heating component 9 and the control board 100 are both arranged at the same end of the bracket 1 along the length direction. The distance between the heating component 9 and the first circuit board 2 is relatively close, so that the two are electrically connected, cables are saved, and the heating component 9 is prevented from occupying the space of the battery 8, so that the battery 8 is as large as possible to meet the endurance requirements.

In one embodiment, referring to FIGS. 2 to 5 , a notch 1c is formed on one side of the bracket 1 along the width direction, at least a portion of the heating component 9 is accommodated in the notch 1c, a portion of the first circuit board 2 and the heating component 9 are arranged side by side along the width direction of the bracket 1, and another portion of the first circuit board 2 extends to the bottom of the heating component 9. On the one hand, the heating component 9 is arranged in the notch 1c to avoid the bracket 1 blocking the heating component 9, so that the heating component 9 is large enough. On the other hand, with the plane perpendicular to the thickness direction of the bracket 1 as the projection plane, the projection of the control board 100 is roughly L-shaped, which can make full use of the space in the housing 10, and make the area of the control board 100 large enough without increasing the width, so as to facilitate the arrangement of electronic components.

In one embodiment, referring to FIG. 2 and FIG. 3 , the heating assembly 9 includes a heating tube 91, which is used to place and heat the aerosol generating substrate of the aerosol generating product 1000. With a plane perpendicular to the length direction as the cross section, the cross-sectional shape of the heating tube 91 is an ellipse or an oval extending along the width direction. In this way, the heating tube 91 is prevented from increasing the thickness of the aerosol generating device 2000.

A round circle is a closed figure formed by dividing a circle into two semicircular arcs through the center of the circle and translating them in opposite directions, and connecting the endpoints of the two semicircular arcs with two parallel lines of equal length.

The heating methods of the heating component 9 include, but are not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating or laser heating. The heating tube 91 can heat the aerosol generating substrate in one or more of the three forms of heat conduction, heat convection and heat radiation. The heat transfer in the form of heat convection means that the heating tube 91 is not in contact with the aerosol generating substrate, the heating tube 91 first heats the air, and then the hot air bakes and heats the aerosol generating substrate. Heat conduction means that the heating tube 91 is in contact with the aerosol generating substrate and conducts heat to the aerosol generating substrate. Exemplarily, resistance and electromagnetic heating mainly transfer heat to the aerosol generating substrate in the form of heat conduction or heat convection. Infrared heating, microwave heating or laser heating mainly transfer heat to the aerosol generating substrate in the form of thermal radiation.

Taking electromagnetic heating as an example, the heating assembly 9 also includes a coil, which is sleeved on the outer circumference of the heating tube 91. The coil and the heating tube 91 can be electromagnetic heating elements. In other words, the coil can be an electromagnetic coil, and the heating tube 91 generates eddy current self-heating in the magnetic field of the coil.

The aerosol generating article 1000 is used in conjunction with the aerosol generating device 2000, please refer to Figures 2 and 3, the aerosol generating article 1000 includes an aerosol generating substrate. The aerosol generating substrate is used to be heated to generate an aerosol. Exemplarily, the aerosol generating substrate can be suitable for generating aerosol in a heating-not-burning manner. That is, the aerosol generating substrate is heated to below the ignition point to generate an aerosol. The aerosol generating substrate does not burn during the process of generating the aerosol. The aerosol generating substrate may include tobacco material.

The aerosol generating device 2000 is used for a user to inhale the aerosol generated by the aerosol generating substrate. When the user inhales the aerosol, the aerosol flows toward the mouthpiece (see FIGS. 1 and 2 ).

The aerosol-forming substrate may be in a solid state.

Exemplarily, in some embodiments, the aerosol generating article 1000 includes a functional segment and a wrapping layer, wherein the functional segment is disposed on one side of the aerosol generating substrate along the length direction, and the wrapping layer wraps around the periphery of the aerosol generating substrate and the periphery of the functional segment. The wrapping layer can protect both the aerosol generating substrate and the functional segment.

The functional segment can provide at least one of the functions of aerosol gathering, dilution, cooling, interception and compensation.

In some embodiments, the cross-sectional shape of the aerosol generating article 1000 is an ellipse or an oval extending along the width direction, with the plane perpendicular to the length direction as the cross-sectional shape. In this way, the cross-sectional shape of the aerosol generating article 1000 is compatible with the cross-sectional shape of the heating tube 91 (see FIGS. 2 and 3 ).

In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims (16)

An aerosol generating device, comprising: a bracket having a first side and a second side opposite to each other in a thickness direction; a first circuit board; The second circuit board is electrically connected to the first circuit board. One of the first circuit board and the second circuit board is arranged on the first side, and the other of the first circuit board and the second circuit board is arranged on the second side. The aerosol generating device according to claim 1, wherein the first circuit board is a control board and the second circuit board is a flexible circuit board. The aerosol generating device according to claim 2, wherein a portion of the flexible circuit board that bypasses a side surface of the bracket along the width direction and extends to the first side is a connecting portion, and the connecting portion is connected to the control board. The aerosol generating device according to claim 3, wherein the aerosol generating device comprises an indicating element and/or an operating element, and the indicating element and/or the operating element are arranged on a part of the connecting portion located on a side of the bracket along the width direction. The aerosol generating device according to claim 2, wherein the aerosol generating device comprises an adapter plate and an electrical interface, the adapter plate is electrically connected to the flexible printed circuit board, and the electrical interface is arranged on the adapter plate. The aerosol generating device according to claim 5, wherein the control board is arranged at the top of the bracket along the length direction, the adapter plate is arranged at the bottom of the bracket along the length direction, and the flexible circuit board extends from the control board to the adapter plate. The aerosol generating device according to claim 5, wherein the aerosol generating device comprises a vibration element, and the vibration element is arranged at the bottom of the bracket and located on the adapter plate. An aerosol generating device according to any one of claims 1 to 7, wherein the aerosol generating device comprises a battery, and one of the first circuit board and the second circuit board and the battery are arranged along the length direction of the bracket. The aerosol generating device according to claim 8, wherein the bracket is formed with a placement groove on the first side which is open to one side in the thickness direction, and the battery is placed in the placement groove. The aerosol generating device according to claim 8, wherein in the width direction, the distance between the side edge of the battery and the corresponding outer side edge of the bracket is 0.6 mm to 1 mm. An aerosol generating device according to any one of claims 1 to 7, wherein at least a portion of the second circuit board is attached to a surface of the first side or a surface of the second side of the bracket. An aerosol generating device according to any one of claims 1 to 7, wherein a groove is formed on one side of the bracket along the thickness direction, and at least a portion of the second circuit board is located in the groove. An aerosol generating device according to claim 12, wherein the second circuit board includes a first part and a second part, the groove includes a first area and a second area, the depth of the first area is greater than the depth of the second area, the first part is located in the first area, the second part is located in the second area, and the first part is used to set electronic components. An aerosol generating device according to claim 13, wherein, taking a plane perpendicular to the thickness direction of the bracket as a projection plane, the projection of the first part is located within the projection range of the first circuit board. An aerosol generating device according to any one of claims 1 to 7, wherein the aerosol generating device comprises a heating component electrically connected to the first circuit board, and the heating component and the first circuit board are both arranged at the same end of the bracket along the length direction. The aerosol generating device according to claim 15, wherein a notch is formed on one side of the bracket along the width direction, at least a portion of the heating component is accommodated in the notch, a portion of the first circuit board and the heating component are arranged side by side along the width direction of the bracket, and another portion of the first circuit board extends to the bottom of the heating component.