Heating device and aerosol generating equipment

Abstract

The utility model relates to the technical field of aerosol, in particular to a heating device and aerosol generating equipment, the heating device comprises a heating body and a heat conducting piece, the heating body can generate heat after being electrified, the heat conducting piece is provided with a heat conducting side wall, and the heat conducting side wall surrounds the axis of the heat conducting piece to form a heating channel; the heating body is arranged at one end of the heating channel so that the heat can be transmitted in the axial direction of the heat conduction piece. The heat conduction side wall is provided with a heat resistance part, and the heat resistance part is used for blocking the transmission of the heat in the axial direction of the heat conduction piece. As the heat resistance part can prevent heat from being transmitted in the axial direction of the heat conduction piece, and heat flowing through other parts after the heat is transmitted to the heat resistance part is reduced, the temperature of the part located behind the heat resistance part in the heat conduction direction is low, the range of a high-temperature area can be reduced, the aerosol generation matrix is prevented from being burnt, and the aerosol generation efficiency is improved. And the use taste and experience of the user are effectively improved.

Description

Technical Field

[0001] The present application relates to the field of aerosol technology, and more particularly to a heating device and an aerosol generating device. Background Art

[0002] Currently, the aerosol generating device in a heat-not-burn device generally includes a power supply component and a heating mechanism. The power supply component and the heating mechanism are electrically connected. The power supply component is used to supply electrical energy to the heating mechanism, and the heating mechanism finally converts the electrical energy supplied by the power supply component into heat energy, and then heats the aerosol forming matrix on the heating mechanism, so that the aerosol forming matrix is atomized by the heat-not-burn method to form an aerosol that can be inhaled by the user.

[0003] The existing heating mechanism generally includes a heat conducting member and a heating element. The heating element is generally connected to the heat conducting member, and the aerosol forming matrix is heated through the heat conducting member. Due to the relatively high heat conduction coefficient of the heat conducting member, through the heat conduction effect, the range of the high temperature area along the axis of the heat conducting member is relatively large, so that the phenomenon of the aerosol forming matrix being burnt and producing miscellaneous gas and burnt smell is likely to occur, thus affecting the user experience. Summary of the Utility Model

[0004] The present application provides a heating device and an aerosol generating device, which can reduce the high temperature area along the axis of the heat conducting member, reduce the possibility of the aerosol forming matrix being burnt, and improve the user experience.

[0005] The present application provides a heating device, including:

[0006] A heating element that can generate heat after being powered on; and

[0007] A heat conducting member having a heat conducting side wall that encloses to form a heating channel around the axis of the heat conducting member; the heating element is disposed at one end of the heating channel so that the heat can be transferred along the axis of the heat conducting member; a heat insulation portion is provided on the heat conducting side wall, and the heat insulation portion is used to block the transfer of the heat in the axial direction of the heat conducting member.

[0008] In one embodiment, at least two heat insulation portions are provided, and the at least two heat insulation portions are spaced apart along the axis of the heat conducting member.

[0009] In one embodiment, the heat insulation portion is a heat insulation groove disposed around the outer side surface of the heat conducting side wall.

[0010] In one embodiment, a plurality of heat insulation grooves are provided, and the plurality of heat insulation grooves are spaced apart along the axis of the heat conducting member; each heat insulation groove has a length and a depth; at least two of the plurality of heat insulation grooves have different lengths; at least two of the plurality of heat insulation grooves have different depths.

[0011] In one embodiment, the depth of each of the heat insulation grooves is less than the thickness of the heat conducting side wall.

[0012] In one embodiment, the heat insulation part includes an annular groove and a heat insulation medium. The annular groove is recessed on the outer side surface of the heat conducting side wall, and the heat insulation medium is filled in the annular groove; the heat conductivity coefficient of the heat insulation medium is less than that of the heat conducting member.

[0013] In one embodiment, the heating device further includes a heat exchange core and a first connecting member. The heating element is arranged between the heat exchange core and the heat conducting member, and the first connecting member is arranged between the heat exchange core and the heating element.

[0014] In one embodiment, the heating device further includes a second connecting member, and the second connecting member is arranged between the heat conducting member and the heating element.

[0015] In one embodiment, the heating device further includes a support member and a base. The support member has two opposite ports along the axial direction of the heat conducting member, and the base is inserted into one of the ports of the support member; a receiving channel is further provided in the support member, and the heat conducting member is arranged in the receiving channel.

[0016] The present application provides an aerosol generating device, which includes a housing, the heating device as described above, and a power supply assembly. The power supply assembly is arranged in the housing; the power supply assembly is electrically connected to the heating element to provide a working power supply for the heating element.

[0017] According to the heating device in the above embodiment, it includes a heating element and a heat conducting member. The heating element can generate heat after being powered on. The heat conducting member has a heat conducting side wall, and the heat conducting side wall encloses around the axis of the heat conducting member to form a heating channel. The heating element is arranged at one end of the heating channel so that the heat generated by the heating element when powered on can be transmitted along the axial direction of the heat conducting member. The aerosol generating substrate can be inserted into the heating channel. Through the heat conduction effect of the heat conducting member, the heat generated by the heating element can be transmitted along the axial direction of the heat conducting member, and the aerosol substrate inserted in the heating channel can be heated to generate aerosol. A heat insulation part is provided on the heat conducting side wall, and the heat insulation part is used to block the transmission of heat in the axial direction of the heat conducting member, so that the heat flowing to other parts after passing through the heat insulation part can be reduced. Since the heat insulation part can prevent the transmission of heat in the axial direction of the heat conducting member, the heat flowing to other parts after the heat is transmitted to the heat insulation part is reduced, so that along the heat conduction direction, the temperature of the part behind the heat insulation part is lower, forming a temperature gradient in the axial direction of the heat conducting member, thereby reducing the range of the high temperature area, avoiding the aerosol generating substrate from being burnt, and effectively improving the user's use taste and experience. Description of the Drawings

[0018] Figure 1 is a structural sectional view of an aerosol generating device in an embodiment;

[0019] Figure 2 is an exploded view of the structure of a heating device in an embodiment;

[0020] Figure 3 is a structural sectional view of an atomizing heating device in an embodiment;

[0021] Figure 4 is a schematic structural view of a heat conducting member in an embodiment;

[0022] Figure 5 is Figure 3 a partial enlarged schematic view at position C in

[0023] Wherein: 100, outer housing; 110, installation space; 200, heating device; 210, heating element; 220, heat conducting member; 221, heat conducting side wall; 222, heating channel; 223, heat insulation part; 2231, heat insulation groove; 2232, first heat insulation groove; 2233, second heat insulation groove; 230, heat exchange core; 231, pore structure; 240, first connecting member; 250, second connecting member; 260, support member; 261, first port; 262, second port; 263, accommodating channel; 270, base; 280, air flow channel; 300, power supply assembly; 310, PCB control circuit board; 320, battery; A, aerosol generating matrix. Specific embodiments

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many details are described to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by excessive description. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0025] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and the drawings are only for clearly describing a certain embodiment and do not mean a necessary composition and / or sequence.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any sequential or technical meaning. And as used in this application, "connection" and "coupling", unless otherwise specified, both include direct and indirect connection (coupling).

[0027] This application provides an aerosol generating device (hereinafter referred to as "generating device"), which can be used to heat an aerosol generating substrate A to generate an aerosol that can be used.

[0028] It should be noted that the aerosol referred to in the terms means a dispersion of solid particles or liquid particles in a gas. As used herein, "aerosol" generally can be used to refer to a substance that has been vaporized, atomized, in the form of a spray or jet, or otherwise converted from a solid or liquid form into an inhalable form containing suspended solid or liquid drug particles.

[0029] As used herein, the term "aerosol generating substrate A" refers to any suitable compound or mixture of compounds that facilitates the formation of an aerosol (such as a stable aerosol that is substantially resistant to thermal degradation at the operating temperature of the system) during use. Suitable aerosol generating substrates A are well known in the art and include, but are not limited to: polyols, such as triethylene glycol, 1,3 - butanediol, and glycerol; esters of polyols, such as glycerol mono-, di-, or triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.

[0030] The aerosol generating substrate A can include nicotine. The aerosol generating substrate A can include water. The aerosol generating substrate A can include glycerol (also known as glycerin) which has a boiling point higher than that of nicotine. The aerosol generating substrate A can include propylene glycol. The aerosol generating substrate A can include plant - based materials. The aerosol generating substrate A can include a homogeneous plant substrate. The homogeneous plant substrate can contain volatile compounds. These compounds can be released from the aerosol generating substrate A when heated. The aerosol generating substrate A can be contained in a container to form a columnar structure with a preset length, etc.

[0031] Please refer to Figure 1, the generating device includes a housing 100, a heating device 200, and a power supply assembly 300. An installation space 110 is provided inside the housing 100. Both the heating device 200 and the power supply assembly 300 are arranged in the installation space 110. The power supply assembly 300 and the heating device 200 are electrically connected to provide the power required for the heating device 200 to operate and control its operation. The housing 100 can be understood as a collection of related components that constitute the overall outer contour of the generating device. For example, the housing 100 can be assembled by combining one or more components, and corresponding assembly structures are provided inside or on the wall of the housing 100 to assemble other components of the generating device to the housing 100. For example, the PCB control circuit board 310, battery 320, etc. in the power supply assembly 300 can be assembled inside the housing 100, and the operation buttons in the power supply assembly 300 can be installed on the housing 100 in a manner that is exposed outside the housing 100. With the help of the housing 100, users can carry, move, operate, and use the generating device.

[0032] It should be noted that the housing 100 and the power supply assembly 300 are technologies that have been publicly disclosed in the prior art and are not the core protected by this application, so they will not be elaborated here. The heating device 200 protected by this application will be introduced in detail below.

[0033] Please refer to Figures 2 to 5 , the heating device 200 includes a heating element 210 and a heat conducting member 220. The heating element 210 can generate heat after being powered on. The heat conducting member 220 has a heat conducting side wall 221. The heat conducting side wall 221 encloses around the axis ( Figure 3 the center line B therein) of the heat conducting member 220 to form a heating channel 222. The heating element 210 is arranged at one end of the heating channel 222 so that the heat generated by the heating element 210 when powered on can be transmitted along the axial direction of the heat conducting member 220 (the direction of the axis of the heat conducting member 220). The aerosol generating substrate A can be inserted into the heating channel 222. Through the heat conduction of the heat conducting member 220, the heat generated by the heating element 210 can be transmitted along the axial direction of the heat conducting member 220, and the aerosol substrate inserted into the heating channel 222 is heated to generate aerosol. A heat insulation portion 223 is provided on the heat conducting side wall 221. The heat insulation portion 223 is used to block the heat transmission in the axial direction of the heat conducting member 220, so as to reduce the heat transmitted to other parts after the heat flows through the heat insulation portion 223.

[0034] Since the heat conducting member 220 is generally made of aluminum alloy with a relatively high thermal conductivity (thermal conductivity of 201 W / (m·K)), the heat transfer efficiency along the axial direction of the heat conducting member 220 is relatively high, resulting in a relatively large range of the high-temperature region (the temperature range where the aerosol matrix can burn sufficiently or even be scorched) along the entire axial direction of the heat conducting member 220. As a result, the phenomenon that the aerosol matrix is scorched easily occurs, leading to the presence of miscellaneous gases and burnt smells in the aerosol inhaled by the user and affecting the user's experience.

[0035] It can be understood that during use, the aerosol generating matrix A is arranged along the axial direction of the heat conducting member 220, that is, they are coaxially arranged. The aerosol generating matrix A includes a matrix section, an air flow section, and a suction section along its axial direction. Generally, the section that can generate aerosol when heated is the matrix section, and the matrix section is arranged close to the heating element 210. The heat conducting member 220 is arranged around the matrix section so as to efficiently utilize the heat generated by the heating element 210. Due to the high heat conduction efficiency of the heat conducting member 220, heat accumulation results in a relatively large high-temperature region, and the matrix section in the high-temperature region is easily baked and scorched, generating miscellaneous gases and affecting the user's taste.

[0036] Since a heat insulation portion 223 is provided along the axial direction of the heat conducting member 220, the amount of heat flowing through other parts after the heat is transferred to the heat insulation portion 223 decreases. As a result, along the heat flow path, the temperature of the part located after the heat insulation portion 223 is lower, reducing the range of the high-temperature region, avoiding the aerosol generating matrix A from being scorched, and effectively improving the user's taste and experience.

[0037] In one embodiment, the heating element 210 is arranged at one end of the heating channel 222 and is arranged inside the heating channel 222, that is, at least part of the structure of the heat conducting member 220 can be wrapped around the heating element 210. The heat generated by the heating element 210 is transferred through solid-solid heat conduction, with high heat conduction efficiency and low heat loss, which can improve the utilization rate of heat.

[0038] Furthermore, the heating element 210 is completely arranged inside the heat conducting member 220 and is completely wrapped by the heat conducting member 220, which can increase the heat transfer area and further effectively increase the heat conduction efficiency.

[0039] Furthermore, the heat conducting member 220 has a cylindrical or tubular structure, and an installation space 110 matching the size and shape of the heat conducting member 220 is formed inside the outer housing 100.

[0040] In one embodiment, there are at least two heat insulation portions 223, and the at least two heat insulation portions 223 are arranged at intervals along the axial direction of the heat conducting member 220, so as to form a temperature gradient along the axial direction of the heat conducting member 220 and reduce the range of the high-temperature region.

[0041] It should be further noted that the at least two mentioned above, that is, the number of the heat insulation parts 223 can be set to 2, 3, 4 or even more, so as to better form a temperature gradient with decreasing values in sequence.

[0042] Please refer to Figure 3 , the heat insulation part 223 is a heat insulation groove 2231 that is arranged around the outer side surface of the heat conduction side wall 221.

[0043] Specifically, in the heat conduction phenomenon, the amount of heat passing through a given cross-section per unit time is proportional to the temperature change rate perpendicular to the heat conduction direction and the cross-sectional area, and the heat conduction direction is opposite to the direction of temperature increase. The calculation formula for the heat flux in the heat transfer process is:

[0044] q = -kA(dT / dx)

[0045] In the formula: q is the heat flux density, with the unit W / m2; k is the thermal conductivity, with the unit W / (m·K); A is the cross-sectional area perpendicular to the heat conduction direction, with the unit m2; dT / dx is the temperature change rate of the object along the x direction (heat conduction direction).

[0046] Due to the setting of the heat insulation groove 2231, the cross-sectional area along the heat conduction direction decreases, so that the heat flux passing along the heat conduction direction decreases, and the temperature increase amplitude along the heat conduction direction also decreases, thus achieving the purpose of reducing the high-temperature area along the heat conduction direction.

[0047] It can be understood that the above-mentioned heat conduction direction is parallel to the axial direction of the heat conduction member 220, and the specific direction is the X direction shown in Figure 3 and Figure 4 , which is also the direction of the aerosol-forming substrate A from the substrate section to the suction section.

[0048] It can be understood that since the heat conduction side walls 221 of the heat conduction member 220 enclose to form a heating channel 222, during operation, the aerosol-forming substrate A is inserted into the heating channel 222, and the inner side surface of the heat conduction side wall 221 contacts the aerosol-forming substrate A. When the heat insulation groove 2231 is arranged on the inner side surface of the heat conduction side wall 221, the heat insulation groove 2231 blocks the heat transfer, so that the corresponding substrate section may not be heated sufficiently. Therefore, arranging the heat insulation groove 2231 on the heat conduction side wall 221 can not only block the heat transfer to reduce the high-temperature area, but also enable the heat conduction member 220 to contact the aerosol-forming substrate A and heat the aerosol-forming substrate A through heat conduction, effectively ensuring that the aerosol-forming substrate A can be heated evenly.

[0049] In one embodiment, a plurality of heat insulation grooves 2231 are provided, and the plurality of heat insulation grooves 2231 are arranged at intervals along the axial direction of the heat conducting member 220; each heat insulation groove 2231 has a length and a depth, and the lengths and depths of the plurality of heat insulation grooves 2231 are the same.

[0050] Please refer to Figure 4 , in one embodiment, the heat insulation groove 2231 includes a first heat insulation groove 2232 and a second heat insulation groove 2233. The first heat insulation groove 2232 and the second heat insulation groove 2233 are arranged at intervals along the axial direction of the heat conducting member 220, and the length and depth of the first heat insulation groove 2232 are the same as those of the second heat insulation groove 2233. For example, the depths of both the first heat insulation groove 2232 and the second heat insulation groove 2233 are 0.2 mm, and the lengths are both 1.6 mm.

[0051] It should be further noted that the length of the heat insulation groove 2231 mentioned in this application is the dimension of the heat insulation groove 2231 along the axial direction of the heat conducting member 220; the depth of the heat insulation groove 2231 is the dimension of the heat insulation groove 2231 along the radial direction of the heat conducting member 220.

[0052] In another embodiment, a plurality of heat insulation grooves 2231 are provided, and the plurality of heat insulation grooves 2231 are arranged at intervals along the axial direction of the heat conducting member 220; each heat insulation groove 2231 has a length and a depth; at least two of the plurality of heat insulation grooves 2231 have different lengths; at least two of the plurality of heat insulation grooves 2231 have different depths.

[0053] In one embodiment, in order to effectively ensure the uniform heating of the aerosol generating matrix A and ensure its sufficient contact with the heat conducting member 220, the heat insulation groove 2231 is a non-through structure, that is, the depth of each heat insulation groove 2231 is less than the thickness of the heat conducting side wall 221, so that along the radial direction of the heat conducting member 220, a heat insulation area and a heat conducting area can be formed in the area where the heat insulation groove 2231 is provided. The heat insulation area is used to reduce heat transfer, and the heat conducting area is used to contact the aerosol generating matrix A and fully heat the aerosol production matrix.

[0054] In another embodiment, the heat insulation part 223 includes an annular groove and a heat insulation medium. The annular groove is recessed on the outer side surface of the heat conducting side wall 221, and the heat insulation medium is filled in the annular groove; the thermal conductivity of the heat insulation medium is less than the thermal conductivity of the heat conducting member 220. For example, the heat insulation medium can be air or ceramic material. The thermal conductivity of air is 0.0267 W / (m·K), and the thermal conductivity of ceramic material is 3.4 W / (m·K).

[0055] The smaller the thermal conductivity, the lower the heat conduction efficiency. Since the heat insulation part 223 is arranged along the axial direction of the heat conduction part 220, and the heat insulation part 223 is composed of an annular groove and a heat insulation medium arranged in the annular groove, the whole heat conduction part 220 is divided into a high thermal conductivity area and a low thermal conductivity area, and the two are distributed along the radial direction of the heat conduction part 220. Due to the setting of the low thermal conductivity area, the total heat transferred along the heat conduction direction is reduced, thereby reducing the high temperature area in the heat conduction direction.

[0056] In one embodiment, the heating device 200 further includes a heat exchange core 230 and a first connecting member 240. The heating element 210 is arranged between the heat exchange core 230 and the heat conduction part 220, that is, the heat exchange core 230 is arranged inside the heating element 210. A part of the heat generated by the heating element 210 is transferred through the heat conduction part 220, and a part is transferred to the heat exchange core 230. The heat exchange core 230 includes a plurality of pore structures 231, and the pore structures 231 generally extend along the axial direction of the heat conduction part 220. After the outside air enters the pore structures 231, it can be heated to form a hot air flow, and the hot air flow flows along the axial direction of the heat conduction part 220 (the axial direction of the aerosol generating substrate A), and can heat the aerosol generating substrate A. By comprehensively using the heating methods of heat conduction and hot air flow, the uniformity of heating can be effectively guaranteed and the heating length in the axial direction of the heat conduction part 220 can be increased.

[0057] Furthermore, the first connecting member 240 is arranged between the heat exchange core 230 and the heating element 210 to fix the heat exchange core 230 and the heating element 210. The first connecting member 240 can be made of a material with high temperature resistance and specific adhesive effect, such as ceramic glue. Through the sintering process, the heat exchange core 230 and the heating element 210 are connected into an integral structure, with firm connection and strong sealing performance.

[0058] In one embodiment, the heating device 200 further includes a second connecting member 250. The second connecting member 250 is arranged between the heat conduction part 220 and the heating element 210 to fix the heat conduction part 220 and the heating element 210. The second connecting member 250 can also be made of a material with high temperature resistance and specific adhesive effect, such as ceramic glue. Through the sintering process, the heat exchange core 230 and the heating element 210 are connected into an integral structure, with firm connection and strong sealing performance.

[0059] In one embodiment, the heating element 210 includes a heating mesh, a heating tube or a heating coil. The heating element 210 is fixedly attached to the inner side surface of the heat conduction side wall 221 and fixedly attached to the outer side wall of the heat exchange core 230, and generates heat after being powered on.

[0060] Of course, in other embodiments, the heating element 210 may also be an electromagnetic coil. A metal material with good magnetic conductivity is provided in the heat exchange core 230, or the heat exchange core 230 is made of a metal material with good magnetic conductivity. After the electromagnetic coil generates heat to produce a magnetic field, the metal material can generate heat.

[0061] In one embodiment, the heating device 200 further includes a support member 260 and a base 270. The support member 260 has two opposite ports along the axial direction of the heat conducting member 220, namely a first port 261 and a second port 262. Between the first port 261 and the second port 262, the support member 260 further has a receiving channel 263. The base 270 is inserted into the second port 262 of the support member 260. The base 270 can close the second port 262, that is, a receiving channel 263 with one end closed is formed. The heat conducting member 220 is disposed in the receiving channel 263. The aerosol generation matrix A is inserted into the support member 260 from the first port 261, and at least part of its structure is inserted into the heat conducting member 220, and finally abuts against part of the heat exchange core 230. The support member 260 can fix the heat conducting member 220. Since the temperature of the heat conducting member 220 is relatively high, in order to prevent the support member 260 from failing structurally due to high temperature, the support member 260 is made of a high-temperature resistant PEEK material.

[0062] In one embodiment, the support member 260 is in clearance fit with the aerosol generation matrix A. When the aerosol generation matrix A is inserted into the support member 260 from the first port 261, an air flow channel 280 is formed between the aerosol generation matrix A and the support member 260. External air flows in through the air flow channel 280 and is heated by the heat exchange core 230 into hot air flow, which can be used to heat the aerosol generation matrix A.

[0063] The above uses specific examples to elaborate on the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the technical field to which the present application pertains, based on the idea of the present application, several simple deductions, deformations or substitutions can also be made.

Claims

1. A heating device, characterized in that, Comprising: A heating element which can generate heat after being powered on; And A heat conducting member having a heat conducting side wall which encloses around the axis of the heat conducting member to form a heating channel; the heating element is arranged at one end of the heating channel so that the heat can be transferred along the axial direction of the heat conducting member; a heat blocking portion is provided on the heat conducting side wall for blocking the transfer of the heat in the axial direction of the heat conducting member.

2. The heating device according to claim 1, wherein There are at least two heat blocking portions, and the at least two heat blocking portions are arranged at intervals along the axial direction of the heat conducting member.

3. The heating device according to claim 1 or 2, characterized in that, The heat blocking portion is a heat blocking groove arranged around the outer side surface of the heat conducting side wall.

4. The heating device according to claim 3, characterized in that, There are a plurality of heat blocking grooves, and the plurality of heat blocking grooves are arranged at intervals along the axial direction of the heat conducting member; each heat blocking groove has a length and a depth; at least two of the plurality of heat blocking grooves have different lengths; at least two of the plurality of heat blocking grooves have different depths.

5. The heating device according to claim 4, characterized in that, The depth of each heat blocking groove is less than the thickness of the heat conducting side wall.

6. The heating device according to claim 1 or 2, characterized in that, The heat blocking portion includes an annular groove and a heat blocking medium. The annular groove is recessed on the outer side surface of the heat conducting side wall, and the heat blocking medium is filled in the annular groove; the heat conduction coefficient of the heat blocking medium is less than that of the heat conducting member.

7. The heating device according to claim 1, characterized in that The heating device further includes a heat exchange core and a first connecting member. The heating element is arranged between the heat exchange core and the heat conducting member, and the first connecting member is arranged between the heat exchange core and the heating element.

8. The heating device according to claim 1 or 7, characterized in that, The heating device further includes a second connecting member, and the second connecting member is arranged between the heat conducting member and the heating element.

9. The heating device according to claim 1, wherein The heating device further includes a support member and a base. The support member has two opposite ports along the axial direction of the heat conducting member, and the base is inserted into one of the ports of the support member; an accommodating channel is further provided in the support member, and the heat conducting member is arranged in the accommodating channel.

10. An aerosol generating device, characterized in that, Comprising: An outer housing; The heating device according to any one of claims 1-9; And A power supply assembly arranged in the outer housing; the power supply assembly is electrically connected to the heating element for providing a working power supply for the heating element.

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