Aerosol generation device

Abstract

Provided is an aerosol generation device. The aerosol generation device includes a device body and a heating element, the heating element includes a substrate and a heating element, the heating element is arranged on the substrate, a chamber is formed in the substrate, and a first heat conduction element and a second heat conduction element are arranged in the substrate. The first heat conduction element and the second heat conduction element separate the chamber to form a receiving chamber and a ventilation chamber, the side of the substrate is provided with an air inlet passage which is communicated with the ventilation chamber; a through hole is arranged on the first heat conduction element. The air that enters the ventilation chamber through the air inlet passage on the side of the substrate further flows into the through hole, and its flow direction changes, causing turbulence in the ventilation chamber. It can more fully exchange heat with the first heat conduction element, second heat conduction element and substrate, improving heat exchange efficiency and allowing the air to be effectively heated without increasing the power of the heating element. This prolongs the service life of the substrate, first heat conduction element, and second heat conduction element, making the device less prone to damage and more stable.

Description

Cross-reference to related applications

[0001] The present application claims the benefit of Chinese Patent Application No. 2023213206420, filed on May 26th, 2023, titled "Aerosol generation device", the contents of which are incorporated herein by reference in their entirety.Technical field

[0002] The application relates to the technical field of aerosol generation, in particular to an aerosol generation device.Background

[0003] The aerosol generation system usually consists of an aerosol generation device and an aerosol generation product. The aerosol generation product is inserted into the aerosol generation device, and the aerosol generation product is heated by the heating module of the aerosol generation device, so as to generate aerosol for users to inhale. Heating element is the key component of heating module. Generally, the substrate is made of materials with excellent thermal conductivity and stable properties. An air hole allowing air circulation is arranged inside the substrate, and a heating element is attached to the substrate. When in use, the heating element converts electric energy into heat energy and transmits it to the substrate, and the substrate further heats the air, and the heated air further heats the aerosol generation product, thereby generating aerosols.

[0004] However, in order to ensure that the air can be heated quickly, the existing substrate needs to increase the power of the heating element in order to maintain the substrate's continuous operation at a higher working temperature. This results in a short substrate service life, easy device damage, and poor stability.Summary

[0005] In order to solve the problems existing in the prior art, the present application provides an aerosol generation device.

[0006] The disclosure provides the following technical solutions.

[0007] Provided is an aerosol generation device, including a device body into which an aerosol generation product can be insert, and a heating element arranged in the device body and configured to heat the aerosol generation product, wherein the heating element includes a substrate and a heating element, the heating element is arranged on the substrate, and is characterized in that a chamber is formed in the substrate, and a first heat conductor and a second heat conduction element are arranged in the substrate; the first heat conduction element and the second heat conduction element separate the chamber to form a receiving chamber and a ventilation chamber, the receiving chamber is located at a side of the first heat conduction element facing away from the second heat conduction element, and the ventilation chamber is located between the first heat conduction element and the second heat conduction element; and a side surface of the substrate is provided with an air inlet passage, and the air inlet passage is communicated with the ventilation chamber; the first heat conduction element is provided with a through hole, and the through hole is communicated with the receiving chamber and the ventilation chamber respectively.

[0008] As a further alternative to the aerosol generation device, a side of the second heat conduction element facing the first heat conduction element is provided with a heat conducting part.

[0009] As a further alternative to the aerosol generation device, the first heat conduction element and the second heat conduction element are arranged along a central axis of the substrate.

[0010] As a further alternative to the aerosol generation device, the second heat conduction element is provided with a clamping block, and the first heat conduction element is provided with a clamping groove, and the clamping block is able to be embedded in the clamping groove.

[0011] As a further alternative to the aerosol generation device, the heating element further includes a structural part arranged at one side of the first heat conduction element or the second heat conduction element.

[0012] As a further alternative to the aerosol generation device, the aerosol generation device further includes a fixed assembly arranged in the device body, and the fixed assembly is provided with a receiving passage into which the aerosol generation product can be inserted; the device body includes a housing, the housing is provided with an opening, and the receiving passage is communicated with the opening.

[0013] As a further alternative to the aerosol generation device, the aerosol generation device further includes a base, the fixed assembly includes a first fixing part, and the first fixing part is embedded and fixed with the base.

[0014] As a further alternative to the aerosol generation device, the fixed assembly further includes a second fixing part, and the substrate is arranged between the first fixing part and the second fixing part.

[0015] As a further alternative to the aerosol generation device, the fixed assembly further includes a third fixing part, and the third fixing part is arranged between the second fixing part and the housing.

[0016] As a further alternative to the aerosol generation device, the second fixing part is sleeved on the substrate from top to bottom, a second limit boss is arranged at the top of the second fixing part, and the second limit boss abuts against the top of the substrate.

[0017] As a further alternative to the aerosol generation device, the first fixing part is provided with an air hole, and the air hole is communicated with the air inlet passage.

[0018] As a further alternative to the aerosol generation device, the aerosol generation device further includes an isolation assembly arranged in the device body, and the isolation assembly is arranged at the periphery of the heating element.

[0019] The embodiments of the present application have the following beneficial effect.

[0020] In the aerosol generation device, the air inlet passage is communicated with the ventilation chamber, and the ventilation chamber is communicated with the receiving chamber via the through hole on the first heat conduction element, thus forming an airflow channel. The heating element arranged on the substrate heats the substrate, and the substrate transfers the heat to the first heat conduction element and second heat conduction element. The air that enters the ventilation chamber through the air inlet passage on the side of the substrate further flows into the through hole, and its flow direction changes, causing turbulence in the ventilation chamber. It can more fully exchange heat with the first heat conduction element, second heat conduction element and substrate, improving heat exchange efficiency and allowing the air to be effectively heated without increasing the power of the heating element. This avoids the continuous operation of the substrate, first heat conduction element, and second heat conduction element at higher working temperatures, which is beneficial in terms of extending the service life of the substrate, first heat conduction element, and second heat conduction element, thereby making the device less susceptible to damage and more stable.

[0021] To make the foregoing objects, features, and advantages of the present application more evident and understandable, a detailed description of preferred embodiments, along with the drawings, is provided below.Brief description of drawings

[0022] In order to explain the technical solution of the embodiments of this application more clearly, the drawings described in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings in the present application and their accompanying detailed description are directed to merely exemplary embodiments of the application. For those of ordinary skill in this field, other drawings may be obtained according to these drawings without any creative effort. Fig. 1 is an overall structural schematic diagram of an aerosol generation device according to an embodiment of the present application. Fig. 2 is a partial structural schematic diagram of an aerosol generation device according to an embodiment of the present application. Fig. 3 is a structural schematic diagram of a heating element in an aerosol generation device according to an embodiment of the present application. Fig. 4 is a schematic sectional view of a heating element in an aerosol generation device according to an embodiment of the present application. Fig. 5 is a schematic diagram of the internal structure of a heating element in an aerosol generation device according to an embodiment of the present application. Fig. 6 is a schematic diagram of the distribution of the air inlet passage in an aerosol generation device according to an embodiment of the present application. Fig. 7 is a structural schematic diagram of a heating element in an aerosol generation device according to another embodiment of the present application. Fig. 8 is a schematic sectional view of a heating element in an aerosol generation device according to another embodiment of the present application. Fig. 9 is a schematic sectional view of a heating element in an aerosol generation device according to another embodiment of the present application from another perspective. Fig. 10 is a schematic sectional view of a heating element in an aerosol generation device according to another embodiment of the present application.

[0023] The reference signs in the drawings are as follows. 100-Device body; 110-Housing; 111-Opening; 112-Air inlet hole; 120-Base; 121-First sealing ring; 200-Heating element; 210-Substrate; 211-Air inlet passage; 212-First heat conduction element; 212a-Through hole; 212b-Clamping groove; 213-Second heat conduction element; 213a-Heat conducting part; 213b-Clamping block; 214-Receiving chamber; 215-Ventilation chamber; 216-Positioning groove; 220-Heating element; 221-First heating area; 222-Second heating area; 223-Third heating area; 230-Structural part; 300-Fixed assembly; 301-Receiving passage; 310-First fixing part; 311-Air hole; 312-First limit boss; 312a-Positioning part; 320-Second fixing part; 321-Second limit boss; 330-Third fixing part; 331-Second sealing ring; 400-Isolation assembly.Detailed description

[0024] The embodiments of the present application will be described in detail below, with examples provided in the attached drawings. The same or similar reference signs represent the same or similar elements, or elements that perform the same or similar funcions throughout. The embodiments described below with reference to the drawings are example and serve solely to explain the present application; they should not be interpreted as limiting the present application.

[0025] Referring to Figure 1, this embodiment describes an aerosol generation device that includes a device body 100 and a heating element 200. When in use, the aerosol generation product is inserted into the device body 100, and the heating element 200 heats the aerosol generation product to generate aerosol or smoke.

[0026] Referring to Figure 2, specifically, the device body 100 is composed of a housing 110 and a base 120.

[0027] The housing 110 is tubular in shape, and one end of the housing 110 is provided with an opening 111 and an air inlet hole 112. The aerosol generation product is inserted through the opening 111, and the air inlet hole 112 allows external air to enter the interior of the housing 110.

[0028] The base 120 is arranged in the housing 110, which divides the interior of the housing 110 into two areas. The heating element 200 is installed in the area facing the opening 111 side of the base 120. The area of the base 120 facing away from the opening 111 is configured for installation of electronic devices such as power supply and control board.

[0029] In this embodiment, a first sealing ring 121 is provided around the base 120 to ensure that the heating element 200 is isolated from electronic devices such as the power supply, as well as to prevent the generated aerosol or smoke from corroding the electronic devices. The first sealing ring 121 abuts against the inner wall of the housing 110 to enhance the sealing performance of the joint between the base 120 and the housing 110.

[0030] Referring to Figure 3, specifically, the heating element 200 includes a substrate 210 and a heating element 220, and the heating element 220 is disposed on the substrate 210.

[0031] When in use, the heating element 220 converts electric energy into heat energy, which is then transmitted to the substrate 210. The substrate 210 further heats the air, and the aerosol generation product is heated by the hot air, thereby generating aerosol.

[0032] Please refer to Figure 4 and Figure 5. Specifically, the substrate 210 is structured in a tubular shape, and a chamber is formed inside the substrate 210. The side of the substrate 210 is provided with an air inlet passage 211 communicating with the chamber, and the substrate 210 is provided with a first heat conduction element 212 and a second heat conduction element 213. When the heating element 220 heats the substrate 210, the substrate 210 would transfer heat to the first heat conduction element 212 and the second heat conduction element 213, so that the first heat conduction element 212 and the second heat conduction element 213 are heated.

[0033] In this embodiment, the substrate 210 is a circular tube, the chamber inside the substrate 210 is cylindrical, and the central axis of the chamber coincides with the central axis of the substrate 210. Accordingly, the air inlet passage 211 is arranged perpendicular to the axial direction of the substrate 210.

[0034] Specifically, the first heat conduction element 212 and the second heat conduction element 213 are arranged along the central axis of the substrate 210, and the chamber is separated to form a receiving chamber 214 and a ventilation chamber 215. The receiving chamber 214 is located at the side of the first heat conduction element 212 facing away from the second heat conduction element 213, and communicates with the opening 111, and at least part of the aerosol generation product is embedded in the receiving chamber 214. The ventilation chamber 215 is located between the first heat conduction element 212 and the second heat conduction element 213, and the air inlet passage 211 communicates with the ventilation chamber 215.

[0035] Furthermore, the first heat conduction element 212 is provided with a through hole 212a. One end of the through hole 212a communicates with the receiving chamber 214, and the other end of the through hole 212a communicates with the ventilation chamber 215. The number of through holes 212a may be one or more.

[0036] In this embodiment, the first heat conduction element 212 and the second heat conduction element 213 are both arranged in a plate shape, the central axes of the first heat conduction element 212 and the second heat conduction element 213 coincide with the central axis of the substrate 210, and the through hole 212a is arranged along the central axis direction of the substrate 210, which is represented by Direction X in the figure.

[0037] The outside air entering the housing 110 flows into the ventilation chamber 215 via the air inlet passage 211 on the side of the substrate 210, and then flows into the receiving chamber 214 via the through hole 212a. In this process, the air exchanges heat with the substrate 210, first heat conduction element 212 and second heat conduction element 213, and heats up after absorbing the heat from the substrate 210, first heat conduction element 212 and second heat conduction element 213, thereby heating the aerosol generation product.

[0038] Please see Figure 6. In this embodiment, the substrate 210 is vertically arranged, and the first heat conduction element 212 is located above the second heat conduction element 213. The air inlet passages 211 is arranged at a sidewall bottom of the substrate 210 and communicated with a bottom end face of the substrate 210, and there are three air inlet passages 211 along the circumferential direction of the substrate 210. In addition, the second heat conduction element 213 is aligned with the middle of the air inlet passage 211 in Direction X, and the cross section of the part of the air inlet passage 211 higher than the second heat conduction element 213 is an effective flow cross section.

[0039] In this embodiment, the cross section of the through hole 212a is circular.

[0040] In this embodiment, the shape of the cross section of the through hole 212a may also be polygon, including but not limited to quadrangle, hexagon and octagon.

[0041] In the above aerosol generation device, the air inlet passage 211, the ventilation chamber 215, the through hole 212a and the receiving chamber 214 together form an airflow channel. The arrangement of the first heat conduction element 212 and the second heat conduction element 213 increases the heat exchange area in the airflow channel, thereby improving the heat exchange efficiency.

[0042] In addition, as air flows into and out of the ventilation chamber 215, the air flow direction changes, which helps to generate of turbulence in the ventilation chamber 215. On the one hand, the air in direct contact with the substrate 210, the first heat conduction element 212, and the second heat conduction element 213 is constantly changing, resulting in a sufficiently large temperature difference and a higher conduction and heat exchange intensity, which can improve heat exchange efficiency. On the other hand, the intensity of convective heat transfer in turbulent flow is greater than that in laminar flow, resulting in a higher heat exchange efficiency in the air.

[0043] Optionally, the cross-sectional area of the air inlet passage 211 is larger than that of the through hole 212a.

[0044] Because the cross-sectional area of the through hole 212a is smaller, the resistance of air flowing in the whole airflow channel is increased, so the air flowing into the ventilation chamber 215 can only slowly pass through the through hole 212a. Accordingly, the air can absorb more heat and be heated to a higher temperature in the ventilation chamber 215. When the air enters the receiving chamber 214, the aerosol generation product can be heated more quickly.

[0045] Referring to Figures 4 and 5, optionally, the side of the second heat conduction element 213 facing the first heat conduction element 212 is provided with a heat conducting part 213a. The number of heat conducting parts 213a may be one or more.

[0046] The heat conducting part 213a protrudes from the surface of the second heat conduction element 213, which can not only increase the heat exchange area between the second heat conduction element 213 and the air, but also disturb the air entering the ventilation chamber 215 and enhance the turbulence in the ventilation chamber 215.

[0047] Specifically, the heating element 220 is arranged on the outer side wall of the substrate 210, and the surface of the heating element 220 is provided with an anti-corrosion protection layer.

[0048] In addition, the second heat conduction element 213 has a back surface facing away from the first heat conduction element 212. The heating element 220 is distributed on the side of the back surface facing the first heat conduction element 212, and mainly heats the section of the substrate 210 where the ventilation chamber 215 is located, which can reduce unnecessary energy loss.

[0049] Optionally, the heating element 220 is composed of a first heating area 221, a second heating area 222 and a third heating area 223.

[0050] The first heating area 221 is flush with the first heat conduction element 212, the second heating area 222 is flush with the second heat conduction element 213, and the third heating area 223 connects the first heating area 221 and the second heating area 222.

[0051] When heating, the heat generated by the first heating area 221 can be directly and efficiently transferred to the first heat conduction element 212, and the heat generated by the second heating area 222 can be directly and efficiently transferred to the second heat conduction element 213, further improving the heat exchange efficiency.

[0052] Please refer to Figure 1 and Figure 2. Optionally, the aerosol generation device further includes a fixed assembly 300 arranged in the device body 100. The fixed assembly 300 is located in the area facing the opening 111 side of the base 120, and the heating element 200 is fixed to the housing 110 via the fixed assembly 300.

[0053] In addition, the fixed assembly 300 is formed with a receiving passage 301 to allow the aerosol generation product to be inserted. One end of the receiving passage 301 in Direction X communicates with the opening 111 on the housing 110, while the heating element 200 is exposed at the other end of the receiving passage 301 in Direction X, and the receiving chamber 214 on the heating element 200 communicates with the opening 111 via the receiving passage 301.

[0054] Specifically, the fixed assembly 300 is composed of a first fixing part 310, a second fixing part 320 and a third fixing part 330, and the first fixing part 310, the second fixing part 320 and the third fixing part 330 are sequentially connected along Direction X. the first fixing part 310 and the base 120 are embedded and fixed. The third fixing part 330 is arranged between the second fixing part 320 and the housing 110, and serves as the connecting part of the whole fixed assembly 300 and the housing 110.

[0055] In addition, the substrate 210 of the heating element 200 is disposed between the first fixing part 310 and the second fixing part 320.

[0056] In this embodiment, taking the drawing's angle as an example, the first fixing part 310 is sleeved on the substrate 210 from bottom to top. The side of the first fixing part 310 is provided with an air hole 311, and the air hole 311 is communicated with the air inlet passage 211. The bottom of the first fixing part 310 is provided with a first limit boss 312, and the first limit boss 312 abuts against the bottom of the substrate 210.

[0057] Accordingly, the second fixing part 320 is sleeved on the substrate 210 from top to bottom. The top of the second fixing part 320 is provided with a second limit boss 321, and the second limit boss 321 abuts against the top of the substrate 210.

[0058] In addition, the first limit boss 312 has a positioning part 312a, and a positioning groove 216 is correspondingly arranged at the bottom of the substrate 210 (see Figure 7). When the first fixing part 310 is sleeved on the substrate 210, the positioning part 312a is clamped into the positioning groove 216 to position the substrate 210.

[0059] Therefore, the first fixing part 310 cooperates with the second fixing part 320 to fully limit and fix the substrate 210, and the first fixing part 310 and the second fixing part 320 arranged separately are easy to process and assemble.

[0060] Optionally, the aerosol generation device further includes an isolation assembly 400 arranged in the device body 100. The isolation assembly 400 is arranged at the periphery of the heating element 200, and wraps the heating element 200 and the fixed assembly 300 to prevent the heat generated by the heating element 200 from being transferred to the device body 100.

[0061] In addition, there is a gap between the isolation assembly 400 and the housing 110, and the gap communicates with the air inlet hole 112. When in use, the outside air flows into the gap between the isolation assembly 400 and the housing 110 via the air inlet hole 112, and flows reversely in Direction X until the isolation assembly 400 is bypassed.

[0062] Then, the outside air first flows between the isolation assembly 400 and the first fixing part 310 along Direction X, and then flows through the air hole 311 and the air inlet passage 211 in turn along the direction perpendicular to the axial direction of the substrate 210 until it enters the ventilation chamber 215 and is heated by the heating element 200.

[0063] Optionally, the heated air flows into the receiving chamber 214 via the through hole 212a along Direction X, and then flows into the receiving passage 301. In this process, the air is continuously heated, and then heat the aerosol generation product to generate aerosol or smoke.

[0064] Finally, the air is entrained with aerosol or smoke and discharged from the opening 111.

[0065] In this embodiment, the third fixing part 330 is provided with a second sealing ring 331. The second sealing ring 331 abuts against the inner wall of the isolation assembly 400 to enhance the sealing performance of the joint between the third fixing part 330 and the isolation assembly 400.

[0066] In brief, when the aerosol generation device is used, air can more thoroughly exchange heat with the first heat conduction element 212, the second heat conduction element 213 and the substrate 210 in the ventilation chamber 215, so that the heat exchange efficiency is improved and the energy loss is reduced. The air can be effectively heated without increasing the power of the heating element 220. This avoids the continuous operation of the substrate 210, first heat conduction element 212, and second heat conduction element 213 at higher working temperatures, which is beneficial in terms of extending the service life of the substrate 210, first heat conduction element 212, and second heat conduction element 213, thereby making the device less susceptible to damage and more stable.

[0067] Please refer to Figure 7 and Figure 8. In this embodiment, the air inlet passage 211 is located between the first heat conduction element 212 and the second heat conduction element 213.

[0068] Please refer to Figure 9. In a specific implementation of this embodiment, the side of the second heat conduction element 213 facing the first heat conduction element 212 is provided with a clamping block 213b, and the side of the first heat conduction element 212 facing the second heat conduction element 213 is correspondingly provided with a clamping groove 212b. The clamping block 213b is embedded in the clamping groove 212b and attached to the inner wall of the substrate 210.

[0069] The heat of the substrate 210 can be transferred to the first heat conduction element 212 and the second heat conduction element 213 via the clamping block 213b. Through the clamping block 213b, the heat can also be transferred between the first heat conduction element 212 and the second heat conduction element 213. This allows the heat to be spread evenly over the first heat conduction element 212 and the second heat conduction element 213, which is also beneficial to improving the heat exchange efficiency.

[0070] In addition, there are at least two clamping blocks 213b, and the number of air inlet passages 211 is the same as that of clamping blocks 213b. The air inlet passage 211 and clamping block 213b are alternately distributed along the circumferential direction of the substrate 210.

[0071] Optionally, the number of air inlet passages 211 and the number of clamping blocks 213b are both two.

[0072] In another implementation of this embodiment, the clamping block 213b may also be arranged on the side of the first heat conduction element 212 facing the second heat conduction element 213; the clamping groove 212b is correspondingly arranged on the side of the second heat conduction element 213 facing the first heat conduction element 212. This can also help to distribute heat uniformly over the first heat conduction element 212 and the second heat conduction element 213.

[0073] It should be noted that the heating element 220 used in various embodiments of the present application includes, but is not limited to, heating wires, heating lines, or other objects that generate heat when electrified. The arrangement of heating circuit includes but is not limited to printing, spraying, etc. Moreover, the heating circuit may be arranged outside the substrate 210, inside the substrate 210, or at other positions as required. In addition, the heating element 200 in each embodiment of the present application includes, but is not limited to, ceramic heating element, honeycomb ceramic heating element and other heating elements with heat conduction function, as well as heating elements composed of other heating elements, all of which have excellent heat conduction performance and stable properties. Specifically, the first heat conduction element 212, the second heat conduction element 213 and the substrate 210 include, but are not limited to, ceramic heating elements, honeycomb ceramic heating elements and other heating elements with heat conduction functions, or heating elements composed of other heating elements.

[0074] Referring to Figure 10, in this embodiment, the heating element 200 of the present application further includes a structural part 230, which is arranged at one side of the first heat conduction element 212 or the second heat conduction element 213.

[0075] Understandably, when the present application is in use, an aerosol generation product or cigarette is inserted into the device body 100 and abuts against the heating element 200, and in some cases, the aerosol generation product or cigarette abuts against the substrate 210 of the present application; in other cases, the aerosol generation product or cigarette abuts against the first heat conduction element 212 or the second heat conduction element 213. In either case, the heating condition of the aerosol generation product or cigarette is related to the relative position of the aerosol generation product or cigarette and the heating element 220 arranged on the substrate 210. The structural part 230 is configured to adjust the relative position between the aerosol generation product or cigarette and the heating element 200.

[0076] Understandably, the structural part 230 may be arranged on the substrate 210, and the structural part 230 may also be arranged on the first heat conduction element 212 or the second heat conduction element 213. The substrate 210 includes, but is not limited to, a ring shape, a column shape or a block shape, and a combination thereof.

[0077] In this embodiment, when the structural part 230 is arranged inside the substrate 210, that is, in the chamber of the substrate 210, and the structural part 230 is annular. The bottom of the structural part 230 abuts against the first heat conduction element 212 or the second heat conduction element 213, and the outer side of the structural part 230 abuts against the inner wall of the chamber of the substrate 210. In the case that the length of the structural part 230 in Direction X is less than the distance from the first heat conduction element 212 or the second heat conduction element 213 to the position of the chamber opening of the substrate 210, when the aerosol generation product or cigarette abuts against the structural part 230, it can be heated by both bottom air heating and substrate 210 circumferential heating.

[0078] Understandably, the device body 100 in the embodiment of the present application is also provided with a power supply, a control panel, a switch button, an indicator light, a charging and data interface, and the like.

[0079] The aforementioned are just a few embodiments of the present application, and their descriptions are more specific and extensive, but they should not be interpreted as restricting the scope of the present application. It should be noted that for those skilled in the art, a number of variations and improvements can be made without departing from the concept of this disclosure, all of which are within the protection scope of this disclosure.Industrial applicability

[0080] In the aerosol generation device, the air inlet passage is communicated with the ventilation chamber, and the ventilation chamber is communicated with the receiving chamber via the through hole on the first heat conduction element, thus forming an airflow channel. The heating element arranged on the substrate heats the substrate, and the substrate transfers the heat to the first heat conduction element and second heat conduction element. The air that enters the ventilation chamber through the air inlet passage on the side of the substrate further flows into the through hole, and its flow direction changes, causing turbulence in the ventilation chamber. It can more fully exchange heat with the first heat conduction element, second heat conduction element and substrate, improving heat exchange efficiency and allowing the air to be effectively heated without increasing the power of the heating element. This avoids the continuous operation of the substrate, first heat conduction element, and second heat conduction element at higher working temperatures, which is beneficial in terms of extending the service life of the substrate, first heat conduction element, and second heat conduction element, thereby making the device less susceptible to damage and more stable.

Claims

1. An aerosol generation device, comprising a device body into which the aerosol generation product is insertable, and a heating element arranged in the device body and configured to heat the aerosol generation product, wherein the heating element comprises a substrate and a heating element, the heating element is arranged on the substrate, and the aerosol generation device is characterized in that a chamber is formed in the substrate, and a first heat conduction element and a second heat conduction element are arranged in the substrate; the first heat conduction element and the second heat conduction element separate the chamber to form a receiving chamber and a ventilation chamber, the receiving chamber is located at a side of the first heat conduction element facing away from the second heat conduction element, and the ventilation chamber is located between the first heat conduction element and the second heat conduction element; and a side surface of the substrate is provided with an air inlet passage, and the air inlet passage is communicated with the ventilation chamber; the first heat conduction element is provided with a through hole, and the through hole is communicated with the receiving chamber and the ventilation chamber respectively.

2. The aerosol generation device of claim 1, wherein a side of the second heat conduction element facing the first heat conduction element is provided with a heat conducting portion.

3. The aerosol generation device of any one of claims 1-2, wherein the first heat conduction element and the second heat conduction element are arranged along a central axis of the substrate.

4. The aerosol generation device of any one of claims 1-3, wherein the second heat conduction element is provided with a clamping block, and the first heat conduction element is provided with a clamping groove, and the clamping block is able to be embedded in the clamping groove.

5. The aerosol generation device of any one of claims 1-4, wherein the heating element further comprises a structural part arranged at one side of the first heat conduction element or the second heat conduction element.

6. The aerosol generation device of any one of claims 1-5, further comprising a fixed assembly arranged in the device body, and the fixed assembly is provided with a receiving passage into which the aerosol generation product is insertable; the device body comprises a housing, the housing is provided with an opening, and the receiving passage is communicated with the opening.

7. The aerosol generation device of claim 6, the device body further comprises a base, the fixed assembly comprises a first fixing part, and the first fixing part is embedded and fixed with the base.

8. The aerosol generation device of claim 7, wherein the fixed assembly further comprises a second fixing part, and the substrate is arranged between the first fixing part and the second fixing part.

9. The aerosol generation device of claim 8, wherein the fixed assembly further comprises a third fixing part, and the third fixing part is arranged between the second fixing part and the housing.

10. The aerosol generation device of any one of claims 8-9, wherein the second fixing part is sleeved on the substrate from top to bottom, a second limit boss is arranged at the top of the second fixing part, and the second limit boss abuts against the top of the substrate.

11. The aerosol generation device of any one of claims 7-10, wherein the first fixing part is provided with an air hole, and the air hole is communicated with the air inlet passage.

12. The aerosol generation device of any one of claims 1-11, further comprising an isolation assembly arranged in the device body, and the isolation assembly is arranged at the periphery of the heating element.

13. The aerosol generation device of any one of claims 1-12, wherein the first heat conduction element and the second heat conduction element are both plate-shaped, central axes of the first heat conduction element and the second heat conduction element coincide with a central axis of the substrate, and the through hole is arranged along a central axis direction of the substrate.

14. The aerosol generation device of any one of claims 1-13, wherein a cross-sectional area of the air inlet passage is larger than that of the through hole.

15. The aerosol generation device of any one of claims 1-14, wherein the substrate is vertically arranged, the first heat conduction element is located above the second heat conduction element, and the air inlet passage is arranged at a sidewall bottom of the substrate and communicated with a bottom end face of the substrate.

16. The aerosol generation device of any one of claims 1-15, wherein the second heat conduction element has a back surface facing away from the first heat conduction element, the heating element is distributed on a side of the back surface facing the first heat conduction element, and the heating element is mainly used for heating a section of the substrate where the ventilation chamber is located.

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