CN218889296U

CN218889296U - Aerosol generating device

Info

Publication number: CN218889296U
Application number: CN202223124275.5U
Authority: CN
Inventors: 呙于波; 金祖涛; 梁峰; 刘洋
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-21
Anticipated expiration: 2032-11-23

Abstract

The embodiment of the application provides an aerosol generating device, wherein the aerosol generating device comprises a mounting bracket, an air inlet component and a circuit board component, the mounting bracket is provided with a mounting space, and an opening groove penetrating through the side wall of the mounting space is formed in the mounting bracket; the air inlet assembly is provided with an air inlet channel, and at least part of the air inlet assembly is arranged in the installation space; the circuit board assembly comprises at least one circuit board, the at least one circuit board is arranged on one side of the side wall opposite to the installation space, and heat on the circuit board can be transferred to the air inlet assembly through the opening groove. According to the aerosol generating device, the opening groove penetrating through the side wall of the installation space is formed in the installation support, the circuit board is arranged on the side wall of the installation space, which is opposite to the side wall of the installation space, heat exchange between the circuit board and the air inlet component is facilitated, and then the heat dissipation effect of the circuit board is improved.

Description

Aerosol generating device

Technical Field

The application relates to the field of atomization technology, in particular to an aerosol generating device.

Background

An aerosol generating device of a Heating Not Burn (HNB) controls an operation state and a smoke output amount by a control circuit and a heating component, and generates aerosols of different compositions according to aerosol generating substrates. During use of the aerosol-generating device, the circuit board of the circuit board assembly may generate heat, and the heat of the heat-generating assembly may also be transferred to the circuit board.

In the related art, heat on the circuit board is transferred to the shell to radiate the circuit board, and the radiating effect of the radiating scheme is poor.

Disclosure of Invention

In view of this, it is desirable to provide an aerosol-generating device with good heat dissipation.

To achieve the above object, an embodiment of the present application provides an aerosol-generating device, including:

a mounting bracket having a mounting space, the mounting bracket being formed with an open slot penetrating a sidewall of the mounting space;

an air inlet assembly having an air inlet passage, at least a portion of the air inlet assembly being disposed in the installation space;

and the circuit board assembly comprises at least one circuit board, at least one circuit board is arranged on one side of the side wall opposite to the installation space, and heat on the circuit board can be transferred to the air inlet assembly through the open slot.

In one embodiment, the opening groove is formed in a region of the side wall corresponding to the circuit board and extends in an axial direction of the air intake assembly.

In one embodiment, at least a portion of the devices on the circuit board are capable of extending into the open slot.

In one embodiment, the aerosol-generating device comprises a heat conducting member, at least part of the heat conducting member is arranged in the open slot, one side of the heat conducting member is abutted with the air inlet component, and the other side of the heat conducting member is abutted with the circuit board.

In one embodiment, the heat conducting member extends in an axial direction of the air intake assembly; and/or, the heat conducting piece is a metal piece.

In one embodiment, the shape of the side of the heat conducting member facing the air inlet component is adapted to the shape of the outer side wall of the air inlet component, and the heat conducting member is attached to the outer side wall of the air inlet component.

In one embodiment, the length of the open slot in the axial direction is greater than or equal to the length of the heat conducting member in the axial direction.

In one embodiment, the outer side wall of the air inlet component comprises a straight line section and an arc section, and two ends of the straight line section are smoothly connected with the arc section.

In one embodiment, at least a portion of the straight line segment is located at the open slot.

In one embodiment, the opening grooves are formed on two opposite sides of the mounting bracket, the circuit board assembly comprises at least two circuit boards, and the two circuit boards are respectively arranged on one sides of the two opening grooves.

In one embodiment, the aerosol-generating device comprises a mounting block with an air passage and a heating component with a heating cavity, wherein one end of the mounting block is in sealing fit with the heating component, the other end of the mounting block is in sealing fit with the air inlet component, and the heating cavity is communicated with the air inlet passage through the air passage.

The embodiment of the application provides an aerosol generating device, and this aerosol generating device includes installing support, air inlet subassembly and circuit board subassembly, and the installing support is formed with the installation space, and the at least partial air inlet subassembly sets up in the installation space, and the installing support can be used for fixed air inlet subassembly promptly. In addition, the installing support is formed with the open slot that runs through the lateral wall of installation space, the circuit board subassembly includes at least one circuit board, at least one circuit board sets up in the installing support one side that forms the open slot, that is, through the open slot that forms the lateral wall that runs through installation space on the installing support, set up the circuit board in the lateral wall and the opposite side of installation space, namely the circuit board sets up in the outside of installation space, so, be favorable to the heat on the circuit board can transmit to the air inlet component, in the use of aerosol generating device, the in-process of aerosol generating device, external air can get into the heating chamber of the heating element of aerosol generating device through the air inlet channel of air inlet component, the air that flows through the air inlet channel can carry out the heat transfer with the lateral wall of air inlet component, and absorb the heat on the air inlet component lateral wall, thereby be favorable to carrying out the heat exchange between circuit board and the air inlet component, and then improved the radiating effect of circuit board. Meanwhile, the heat transferred to the air inlet component can heat the air flowing through the air inlet channel, so that the effect of preheating the air is achieved, the hot air flows to the heating cavity, and the heating atomization effect of the aerosol generating device is improved to a certain extent.

Drawings

Fig. 1 is a schematic structural view of an aerosol-generating device according to an embodiment of the present application;

fig. 2 is a schematic structural view of the aerosol-generating device shown in fig. 1, wherein portions of the circuit board and the heat-conducting member are omitted;

fig. 3 is a schematic structural view of the aerosol-generating device of fig. 1 from another perspective;

FIG. 4 isbase:Sub>A cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is an enlarged view at C in FIG. 4;

FIG. 6 is an enlarged view of FIG. 4 at D;

FIG. 7 is a cross-sectional view taken in the direction B-B of FIG. 4;

FIG. 8 is an enlarged view at E in FIG. 7;

FIG. 9 is a schematic structural view of a mounting base according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of an outer sleeve according to an embodiment of the present disclosure;

fig. 11 is an enlarged view of another embodiment of the present application, the enlarged portion being the same as at E of fig. 7.

Description of the reference numerals

10. A mounting bracket; 10a, an installation space; 10b, open slots; 10c, sidewalls; 20. an air intake assembly; 21. an air intake duct 21;21a, an intake passage; 22. an outer sleeve; 22a, a mounting cavity; 22b, straight line segments; 22c, arc segments; 30. a circuit board assembly; 31. a circuit board; 40. a heat conductive member; 50. a mounting base; 50a, a gas passing channel; 50b, mounting area; 50c, mounting grooves; 60. a heating component; 60a, a heating cavity; 70. sealing sleeve; 70a, a sealing body; 70b, a limiting part; 70c, an avoidance port; 80. a seal ring; 100. an aerosol-generating device.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and technical features in the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as undue limitation to the present application.

In the embodiments of the present application, the terms "upper," "lower," "top," "bottom" orientation or positional relationship are based on the orientation or positional relationship shown in fig. 3, and the "axial" is based on the top-bottom orientation shown in fig. 1, it should be understood that these orientation terms are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The present application will now be described in further detail with reference to the accompanying drawings and specific examples.

Referring to fig. 1-8, an aerosol-generating device 100 is provided, and includes a mounting bracket 10, an air intake assembly 20, and a circuit board assembly 30.

The aerosol-generating device 100 is for atomizing an aerosol-generating substrate to generate an aerosol for inhalation by a user. The aerosol-generating substrate includes, but is not limited to, a pharmaceutical product, a nicotine-containing material, or a nicotine-free material, etc.

Referring to fig. 1 to 5, the mounting bracket 10 has a mounting space 10a, the mounting bracket 10 is formed with an open slot 10b penetrating a sidewall 10c of the mounting space 10a, and at least a portion of the air intake assembly 20 is disposed in the mounting space 10a, i.e., the mounting bracket 10 may be used to fix the air intake assembly 20. Note that, at least a part of the air intake assembly 20 is disposed in the installation space 10a, and the air intake assembly 20 may be disposed entirely in the installation space 10a or may be disposed partially in the installation space 10a.

It should be noted that the specific number of the open grooves 10b is not limited herein, and in an exemplary embodiment, the number of the open grooves 10b is one.

In other embodiments, the number of open slots 10b is plural, and illustratively, the number of open slots 10b is two, and open slots 10b are formed on opposite sides of the mounting bracket 10. In this way, the heat radiation efficiency of the heat on the circuit board 31 transferred to the air intake assembly 20 through the open groove 10b is improved.

In the embodiment of the present application, the plurality of index numbers includes two and more than two.

The circuit board assembly 30 includes at least one circuit board 31, and at least one circuit board 31 is disposed on a side of the sidewall 10c opposite to the installation space 10a, i.e., the circuit board 31 is disposed outside the installation space 10a, and heat on the circuit board 31 can be transferred to the air intake assembly 20 in the installation space 10a through the open slot 10b. That is, by disposing the circuit board 31 on the side of the mounting bracket 10 where the open groove 10b is formed, heat on the circuit board 31 is advantageously transferred to the air intake assembly 20 through the open groove 10b.

It should be noted that the specific number of the circuit boards 31 is not limited herein, and in an exemplary embodiment, the circuit board assembly 30 includes one circuit board 31, and the circuit board 31 is disposed on one side of the mounting bracket 10 where the open slot 10b is formed.

In other embodiments, the circuit board assembly 30 includes at least two circuit boards 31, and as an example, referring to fig. 1, 2, 4 and 8, the circuit board assembly 30 includes two circuit boards 31, for example, two circuit boards 31 are disposed on one side of two open slots 10b, respectively. That is, the side wall 10c of the installation space 10a corresponding to each circuit board 31 is formed with the open groove 10b, that is, the opposite sides of the installation frame 10 are formed with the open grooves 10b, and the two circuit boards 31 are respectively disposed at one side of the two open grooves 10b, so that the heat dissipation efficiency of the heat on the circuit boards 31 transferred to the air intake assembly 20 through the open grooves 10b is improved.

The aerosol-generating device 100 comprises a power supply assembly (not shown), wherein the power supply assembly may comprise, for example, a battery, which is electrically connected to the circuit board 31 of the circuit board assembly 30.

In the related art, heat on the circuit board is dissipated through the aerosol generating device, or is transferred to the housing to dissipate heat, so that the heat dissipation environment of the circuit board is poor, or the heat dissipation effect is poor due to too long heat conduction path.

The embodiment of the application provides an aerosol-generating device, the aerosol-generating device 100 comprises a mounting bracket 10, an air inlet assembly 20 and a circuit board assembly 30, the mounting bracket 10 is formed with a mounting space 10a, at least part of the air inlet assembly 20 is arranged in the mounting space 10a, i.e. the mounting bracket 10 can be used for fixing the air inlet assembly 20. In addition, the mounting bracket 10 is formed with an open slot 10b penetrating through the side wall 10c of the mounting space 10a, the circuit board assembly 30 includes at least one circuit board 31, and the at least one circuit board 31 is disposed on one side of the mounting bracket 10 where the open slot 10b is formed, that is, by forming the open slot 10b penetrating through the side wall 10c of the mounting space 10a on the mounting bracket 10, the circuit board 31 is disposed on the side wall 10c opposite to the mounting space 10a, that is, the circuit board 31 is disposed on the outer side of the mounting space 10a, so that heat on the circuit board 31 can be transferred to the air inlet assembly 20 in the mounting space 10a, during the use of the aerosol generating device 100, air from the outside can enter the heating cavity 60a of the heating assembly 60 of the aerosol generating device 100 through the air inlet channel 21a of the air inlet assembly 20, and the air flowing through the air inlet channel 21a can exchange heat with the side wall 10c of the air inlet assembly 20 and absorb heat on the side wall of the air inlet assembly 20, thereby facilitating heat exchange between the circuit board 31 and the air inlet assembly 20, and further improving the heat dissipation effect of the circuit board 31. At the same time, the heat transferred to the air intake assembly 20 can heat the air flowing through the air intake passage 21a, thereby preheating the air, and the heated air will flow to the heating chamber 60a, thereby improving the heating and atomizing effects of the aerosol-generating device 100 to some extent.

In an embodiment, referring to fig. 1 and 2, the open slot 10b is formed in the region corresponding to the side wall 10c and the circuit board 31, so that the path between the heat of the circuit board 31 and the air intake assembly 20 is advantageously shortened, and the heat dissipation efficiency of the circuit board 31 can be improved.

It will be appreciated that the greater the open area of the open slot 10b, the greater the efficiency with which heat on the circuit board 31 is transferred through the open slot 10b to the air intake assembly 20. Thus, the open slot 10b shown in fig. 2 extends along the axial direction of the air intake assembly 20, so that the open area of the open slot 10b can be increased as much as possible, that is, the heat exchange area between the circuit board 31 and the air intake assembly 20 is increased, and the heat dissipation efficiency of the circuit board 31 is further improved.

In one embodiment, at least a portion of the devices on the circuit board 31 can extend into the open slot 10b. In this way, the path between the heat of the circuit board 31 and the air inlet assembly 20 can be shortened, the heat dissipation efficiency of the circuit board 31 can be improved, and the space can be utilized better, so that the aerosol generating device is compact.

In one embodiment, at least part of the devices on the circuit board 31 can extend into the open slot 10b and directly contact with the air inlet component, so as to further improve the heat dissipation efficiency of the circuit board 31.

In an embodiment, referring to fig. 7 and 8, the aerosol-generating device 100 includes a heat conducting member 40, at least a portion of the heat conducting member 40 is disposed in the open slot 10b, one side of the heat conducting member 40 abuts against the air intake assembly 20, and the other side abuts against the circuit board 31. That is, by disposing the heat conducting member 40 at the opening slot 10b, the heat conducting member 40 is sandwiched between the circuit board 31 and the air inlet assembly 20, so that the circuit board 31 can exchange heat with the heat conducting member 40, i.e. the heat on the circuit board 31 can be quickly transferred to the heat conducting member 40, and then exchange heat with the air inlet assembly 20 through the heat conducting member 40, i.e. the heat on the heat conducting member 40 can be quickly transferred to the air inlet assembly 20, so that the heat on the circuit board 31 can be transferred to the air inlet assembly 20 through the heat conducting member 40, thereby further improving the heat dissipation effect of the circuit board 31.

Note that at least a part of the heat conductive member 40 is disposed in the open groove 10b means that a part of the heat conductive member 40 may be disposed in the open groove 10b, or that all of the heat conductive member 40 may be disposed in the open groove 10b.

It will be appreciated that the higher the heat conduction efficiency of the heat conduction member 40, the better the heat dissipation effect of the circuit board 31, and thus, the heat dissipation effect of the circuit board 31 can be further improved by using a material with high heat conductivity for the heat conduction member 40, for example, a metal member. Of course, other materials with high thermal conductivity, such as thermal conductive glue, thermal grease, etc., may be used for the thermal conductive member 40.

In a specific embodiment, the mounting bracket 10 is formed with open slots 10b on opposite sides, the circuit board assembly 30 includes two circuit boards 31, the two circuit boards 31 are respectively disposed on one sides of the two open slots 10b, the aerosol generating device 100 includes a heat conducting member 40, at least a portion of the heat conducting member 40 is disposed in one of the open slots 10b, one side of the heat conducting member 40 is abutted with the air inlet assembly 20, and the other side is abutted with the circuit board 31.

In other embodiments, the aerosol-generating device 100 may also include two heat conducting members 40, where the two heat conducting members 40 are respectively disposed in the corresponding open slots 10b, so that heat on the two circuit boards 31 is transferred to two opposite sides of the air intake assembly 20 through the two heat conducting members 40, and the heat dissipation effect of the circuit boards 31 is further improved.

In one embodiment, the thermally conductive member 40 extends in the axial direction of the air intake assembly 20. It will be appreciated that the greater the contact area of the heat conductive member 40 with the air intake assembly 20 and the circuit board 31, the greater the efficiency with which heat on the circuit board 31 is transferred to the air intake assembly 20 through the heat conductive member 40. Therefore, the heat conducting member 40 extends along the axial direction of the air inlet assembly 20, the larger the contact area between the heat conducting member 40 and the air inlet assembly 20 and the contact area between the heat conducting member and the circuit board 31 are, i.e. the heat exchange area between the circuit board 31 and the air inlet assembly 20 are increased, and the heat dissipation efficiency of the circuit board 31 is further improved. In addition, during the use of the aerosol-generating device 100, the air from the outside may enter the heating chamber 60a of the heat generating component 60 of the aerosol-generating device 100 through the air inlet channel 21a of the air inlet component 20, the air flowing through the air inlet channel 21a may exchange heat with the side wall of the air inlet component 20 and absorb heat on the side wall of the air inlet component 20, while the heat conducting member 40 extends along the axial direction of the air inlet component 20, and the air from the outside flows along the axial direction, so that the heat exchange between the circuit board 31 and the air inlet component 20 is further improved, and the heat dissipation effect of the circuit board 31 is further improved.

In an embodiment, the shape of the side of the heat conducting member 40 facing the air intake assembly 20 is adapted to the shape of the outer sidewall of the air intake assembly 20, and the heat conducting member 40 is attached to the outer sidewall of the air intake assembly 20. In this embodiment, the shape of the side of the heat conducting member 40 facing the air intake assembly 20 is set to be matched with the shape of the outer sidewall of the air intake assembly 20, so that the heat conducting member 40 can be attached to the outer sidewall of the air intake assembly 20, i.e. the contact area between the heat conducting member 40 and the outer sidewall of the air intake assembly 20 is increased as much as possible, and the heat transfer efficiency between the heat conducting member 40 and the air intake assembly 20 is further improved.

In other embodiments, the side of the heat conducting member 40 facing the air intake assembly 20 may have a flat or curved shape. For example, the side of the heat conductive member 40 facing the intake assembly 20 shown in fig. 8 is planar in shape.

In one embodiment, the length of the open slot 10b in the axial direction is greater than or equal to the length of the heat conducting member 40 in the axial direction. In this way, heat on the circuit board 31 can be transferred to the air inlet assembly 20 by heat conduction and heat radiation, and the heat dissipation efficiency of the circuit board 31 is improved. In addition, the installation space 10a can be saved by controlling the size of the heat conductor.

It should be noted that the specific shape of the air intake assembly 20 is not limited herein, and the cross-sectional shape of the air intake assembly 20 includes, but is not limited to, a cylinder, an elliptic cylinder, or a polygonal shape with a rounded cross section. For example, referring to fig. 7, 8 and 10, in one embodiment, the outer sidewall of the air intake assembly 20 includes a straight line segment 22b and a circular arc segment 22c, and two ends of the straight line segment 22b are smoothly connected with the circular arc segment 22 c. That is, the cross-sectional shape of the air intake assembly 20 is similar to an oval or rounded polygon, which is advantageous for better fitting of the air intake assembly 20 and the heat conductive member 40, i.e., for improved assembly stability of the heat conductive member 40 and the air intake assembly 20, and for improved heat transfer efficiency between the heat conductive member 40 and the air intake assembly 20. The cross-sectional shape of the intake assembly 20 refers to the cross-sectional shape of the intake assembly 20 taken along a plane perpendicular to the axial direction of the intake assembly 20.

In an embodiment, referring to fig. 11, the heat conducting member 40 includes a shape matching the straight line segment 22b and the circular arc segment 22c, for example, the heat conducting member 40 is disposed around the outer side wall of the air intake assembly 20, so that the heat conducting member 40 is better attached to the outer side wall of the air intake assembly 20, and further, the heat transfer efficiency between the heat conducting member 40 and the air intake assembly 20 is improved.

In one embodiment, at least a portion of straight section 22b is located at open slot 10b. That is, by disposing at least a portion of the straight line segment 22b of the air intake assembly 20 at the open slot 10b, that is, the air intake assembly 20 can be matched with the heat conducting member 40 through the straight line segment 22b, the air intake assembly 20 and the heat conducting member 40 can be better adhered, that is, the assembly stability of the heat conducting member 40 and the air intake assembly 20 can be improved, and meanwhile, the heat transfer efficiency between the heat conducting member 40 and the air intake assembly 20 can be improved.

In one embodiment, referring to fig. 4 and 5, the aerosol-generating device 100 comprises a heating assembly 60 having a heating chamber 60a, the heating chamber 60a being in communication with the air inlet passage 21 a.

The heating element 60 has a heating chamber 60a, and the heating element 60 is configured to heat the aerosol-generating substrate for atomization, for example, by placing the heated aerosol-generating substrate in the heating chamber 60a.

It should be noted that the specific structure and shape of the heat generating component 60 are not limited herein, and the heat generating component 60 is illustratively in the form of a hollow cylindrical tube having a hollow internal heating cavity 60a into which an aerosol generating substrate is inserted for heating in use.

It should be noted that the specific heating manner of the heat generating component 60 is not limited herein, and includes, for example, induction heating by emitting infrared radiation, an infrared heater element, or a resistive heating element formed of, for example, a resistive electric winding.

In one embodiment, referring to fig. 4, 5 and 9, the aerosol-generating device 100 includes a mounting base 50 having an air passage 50a and a heat generating component 60 having a heating chamber 60a, one end of the mounting base 50 is in sealing engagement with the heat generating component 60, the other end is in sealing engagement with the air intake component 20, and the heating chamber 60a is in communication with the air passage 21a via the air passage 50 a. That is, by providing the mount 50 with the air passage 50a, both the heat generating component 60 and the air intake component 20 are sealingly engaged with the mount 50 such that the heating chamber 60a communicates with the air intake passage 21a through the air passage 50a, and during use of the aerosol-generating device 100, ambient air may enter the heating chamber 60a through the air intake passage 21 a. I.e., the mounting block 50, is provided for mounting the heat generating component 60 and the air intake assembly 20.

Of course, in other embodiments, the mounting base 50 may not be provided, and the heat generating component 60 may be directly connected to the air intake component 20, so that the heating chamber 60a communicates with the air intake passage 21a through the air passage 50 a.

In one embodiment, referring to fig. 4 and 5, the aerosol-generating device 100 includes a sealing sleeve 70, the sealing sleeve 70 includes a sealing body 70a and a limiting portion 70b disposed at one end of the sealing body 70a, and the limiting portion 70b is formed with a relief opening 70c. The mounting seat 50 has a mounting region 50b communicating with the overair passage 50a, one end of the air intake assembly 20 extends into the mounting region 50b, the seal body 70a is sandwiched between the air intake assembly 20 and the side wall 10c of the mounting region 50b, the stopper 70b is sandwiched between the end of the air intake assembly 20 and the top wall of the mounting region 50b, and the air intake passage 21a communicates with the overair passage 50a through the escape opening 70c.

That is, the aerosol-generating device 100 improves the sealing performance between the mount pad 50 and the air intake assembly 20 by providing the sealing sleeve 70, and the mount pad 50 is in sealing engagement with the air intake assembly 20 by the sealing sleeve 70, i.e., by providing the sealing sleeve 70 to seal the gap between the mount pad 50 and the air intake assembly 20.

Specifically, referring to fig. 4 and 5, the mounting seat 50 has a mounting area 50b communicating with the overair channel 50a, one end of the air intake assembly 20 extends into the mounting area 50b, the sealing body 70a is sandwiched between the air intake assembly 20 and the side wall 10c of the mounting area 50b, for example, the air intake assembly 20 is disposed in the sealing body 70a in an interference manner, that is, by disposing the sealing body 70a to seal the gap between the side wall 10c of the mounting area 50b and the air intake assembly 20, the sealing performance between the mounting seat 50 and the air intake assembly 20 is improved. In addition, the limiting portion 70b is in sealing fit with the top wall of the mounting area 50b, that is, by setting a gap between the top wall of the mounting area 50b and the top of the sealing sleeve 70 sealed by the limiting portion 70b, the sealing performance between the mounting seat 50 and the sealing sleeve 70 is improved, the gap between the outer side wall of the air inlet assembly 20 and the mounting seat 50 when the aerosol generating device 100 is used is effectively improved, and the condition that the aerosol or residual liquid enters the mounting bracket 10 is improved, so that the service life and user experience of the aerosol generating device 100 are improved.

In an embodiment, referring to fig. 4 to 8, the air intake assembly 20 includes an air intake duct 21 having an air intake passage 21a, heat on the circuit board 31 can be transferred to the air intake duct 21 through the open slot 10b, during the use of the aerosol-generating device 100, external air can enter the heating cavity 60a of the heating assembly 60 of the aerosol-generating device 100 through the air intake passage 21a of the air intake duct 21, and the air flowing through the air intake passage 21a can exchange heat with the side wall of the air intake assembly 20 and absorb heat on the side wall of the air intake duct 21, so that heat exchange between the circuit board 31 and the air intake duct 21 is facilitated, and further the heat dissipation effect of the circuit board 31 is improved. At the same time, the heat transferred to the air intake assembly 20 can heat the air flowing through the air intake passage 21a, thereby preheating the air, and the heated air will flow to the heating chamber 60a, thereby improving the heating and atomizing effects of the aerosol-generating device 100 to some extent.

One end of the air intake duct 21 extends into the mounting area 50b and is in sealing engagement with the sealing body 70a, for example, the air intake duct 21 is disposed in the sealing body 70a in an interference manner, that is, by disposing a gap between the side wall 10c of the sealing body 70a and the air intake duct 21, which seals the mounting area 50b, the sealing performance between the mounting seat 50 and the air intake duct 21 is improved.

In one embodiment, referring to fig. 4 to 8 and fig. 10, the air intake assembly 20 includes an outer sleeve 22 disposed in the installation space 10a, the outer sleeve 22 has an installation cavity 22a with two open ends, and the air intake pipe 21 is detachably disposed in the installation cavity 22a through the opening. By providing the outer sleeve 22, the air inlet duct 21 is detachably arranged in the mounting cavity 22a through the opening, which is advantageous for the detachable connection of the air inlet duct 21 with the outer sleeve 22. At this time, the air intake assembly 20 can be attached to the heat conducting member 40 through the outer sleeve 22, which is beneficial to improving the heat transfer efficiency between the heat conducting member 40 and the air intake assembly 20.

It should be noted that, the specific manner in which the air inlet duct 21 is detachably disposed in the mounting cavity 22a through the opening is not limited herein, for example, a gap or an abutment is formed between the air inlet duct 21 and the outer sleeve 22, so that the air inlet duct 21 is convenient to be detached.

It will be appreciated that when the aerosol or residual liquid in the heating chamber 60a flows toward the air inlet channel 21a of the air inlet duct 21, aerosol condensate or residual liquid is formed on the inner wall of the air inlet duct 21, the user can take out the air inlet duct 21 from the mounting chamber 22a, and the taken out air inlet duct 21 can be washed with water or cleaned by other cleaning tools and then put back into the mounting chamber 22a, so that the air inlet duct 21 can be cleaned conveniently.

In other embodiments, the air intake duct 21 is made of a material capable of absorbing condensate, so that when the aerosol or residual liquid in the heating chamber 60a flows into the air intake duct 21 and is absorbed by the air intake duct 21, the air intake duct 21 can be directly replaced after the aerosol generating device 100 is used for a certain period of time, thereby achieving the effect of cleaning-free and improving the service life and user experience of the aerosol generating device 100.

One end of the outer sleeve 22 extends into the mounting region 50b and is in sealing engagement with the sealing body 70a, for example, the outer sleeve 22 is disposed in the sealing body 70a in an interference manner, that is, by disposing a gap between the side wall 10c of the sealing body 70a and the sealing mounting region 50b and the outer sleeve 22, the sealing performance between the mounting seat 50 and the outer sleeve 22 is improved.

Of course, the outer sleeve 22 may not be provided, and the air intake duct 21 may be detachably connected directly to the mounting bracket 10 or the heating element 60.

It will be appreciated that the higher the heat conduction efficiency of the air intake assembly 20, the better the heat dissipation effect of the circuit board 31, and the better the heat exchange efficiency of the air intake assembly 20 and the air flowing through the air intake passage 21a, so that the air intake duct 21 and the outer jacket 22 can further improve the heat dissipation effect of the circuit board 31 by using a material with high thermal conductivity, and the air intake duct 21 and the outer jacket 22 are, for example, metal members. Of course, other materials of high thermal conductivity may be used for the air intake duct 21 and the outer jacket tube 22.

It should be noted that the specific shape of the outer sleeve 22 is not limited herein, and the cross-sectional shape of the outer sleeve 22 includes, but is not limited to, a cylindrical shape, an elliptic cylindrical shape, or a polygonal shape with a rounded cross section. In an exemplary embodiment, referring to fig. 4 to 8 and fig. 10, the outer sidewall of the outer sleeve 22 includes a straight line segment 22b and a circular arc segment 22c, and two ends of the straight line segment 22b are smoothly connected with the circular arc segment 22 c. That is, the cross-sectional shape of the outer sleeve 22 is similar to an oval shape or a rounded polygon shape, which is advantageous for better fitting of the outer sleeve 22 and the heat conducting member 40, i.e., for improving the assembling stability of the heat conducting member 40 and the outer sleeve 22, and at the same time, for improving the heat transfer efficiency between the heat conducting member 40 and the outer sleeve 22. The cross-sectional shape of the outer sleeve 22 refers to the cross-sectional shape of the intake assembly 20 taken along a plane perpendicular to the axial direction of the intake assembly 20.

It should be noted that the specific shape of the air intake duct 21 is not limited herein, and the cross-sectional shape of the air intake duct 21 includes, but is not limited to, a cylindrical shape, an elliptic cylindrical shape, or a polygonal shape with a rounded cross section. Illustratively, in an embodiment, the cross-sectional shape of the air inlet duct 21 is adapted to the cross-sectional shape of the outer sleeve 22, i.e. the cross-sectional shape of the air inlet duct 21 corresponds to the cross-sectional shape of the outer sleeve 22, such that the air inlet duct 21 is advantageously detachably arranged within the outer sleeve 22.

In one embodiment, referring to fig. 4, 6 and 9, the mounting seat 50 has a mounting groove 50c formed on an outer side wall thereof, and the aerosol-generating device 100 includes a sealing ring 80, and the sealing ring 80 is sandwiched between a groove wall of the mounting groove 50c and a side wall of the heating chamber 60a. That is, the aerosol-generating device 100 improves the sealing performance between the mount 50 and the heat generating component 60 by providing the seal ring 80, and the mount 50 and the heat generating component 60 are hermetically engaged with each other by the seal ring 80, that is, by providing the seal ring 80 to seal the gap between the mount 50 and the heat generating component 60.

The various embodiments/implementations provided herein may be combined with one another without conflict.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application are included in the protection scope of the present application.

Claims

1. An aerosol-generating device, comprising:

2. An aerosol-generating device according to claim 1, wherein the open slot is formed in a region of the side wall corresponding to the circuit board and extends in an axial direction of the air inlet assembly.

3. An aerosol-generating device according to claim 1, wherein at least part of the devices on the circuit board are able to extend into the open slot.

4. An aerosol-generating device according to claim 1, comprising a thermally conductive member, at least part of which is arranged in the open slot, one side of the thermally conductive member being in abutment with the air inlet assembly and the other side being in abutment with the circuit board.

5. An aerosol-generating device according to claim 4, wherein the thermally conductive member extends in an axial direction of the air inlet assembly; and/or, the heat conducting piece is a metal piece.

6. An aerosol-generating device according to claim 4, wherein the shape of the side of the heat-conducting member facing the air inlet assembly is adapted to the shape of the outer side wall of the air inlet assembly, for the heat-conducting member to be attached to the outer side wall of the air inlet assembly.

7. An aerosol-generating device according to claim 4, wherein the length of the open slot in the axial direction is greater than or equal to the length of the thermally conductive member in the axial direction.

8. An aerosol-generating device according to any of claims 1-7, wherein the outer side wall of the air inlet assembly comprises a straight segment and a circular segment, the two ends of the straight segment being smoothly connected to the circular segment.

9. An aerosol-generating device according to claim 8, wherein at least part of the straight line segment is located at the open slot.

10. An aerosol-generating device according to any one of claims 1 to 7, wherein the mounting bracket is formed with the open slot on opposite sides thereof, and the circuit board assembly comprises at least two circuit boards arranged on respective sides of the open slots.

11. An aerosol-generating device according to any one of claims 1 to 7, comprising a mounting cup having an air passage through which the heating chamber communicates with the air inlet passage, and a heating component having a heating chamber, one end of the mounting cup being in sealing engagement with the heating component and the other end being in sealing engagement with the air inlet component.