Heating assembly and aerosol generating device

Abstract

The utility model relates to the technical field of atomization, in particular to a heating assembly and an aerosol generating device. The heating assembly comprises a heat conduction pipe fitting, an insulating part and a heating part, a mounting groove extending in the axis direction of the heat conduction pipe fitting is formed in the heat conduction pipe fitting, the heat conduction pipe fitting is mainly made of metal materials, the insulating part is embedded in the mounting groove and provided with a containing channel extending in the axis direction, and the heating part is arranged in the containing channel. The heating element is electrified for heating. Due to the arrangement of the insulating part, the circuit connection between the heating part and the heat conduction pipe fitting can be blocked, so that the risk of short circuit failure is avoided, and the use safety of the generating device is improved. Through the cooperation of the heating piece and the heat conduction pipe fitting, the risk of burning possibly caused by direct contact between the heating piece and the to-be-heated substance can be avoided, the heating area is increased, the heating temperature is uniform, and the good heating effect is achieved. Due to the arrangement of the mounting groove, the insulating part is convenient to assemble and fix, assembling procedures can be simplified, and cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and more specifically to a heating component and an aerosol generating device. Background Art

[0002] Aerosol-generating devices are gaining increasing attention and favor due to their safety, convenience, health, and environmental benefits. For example, heat-not-burn aerosol-generating devices (HBNs) are commonly found in aerosol-generating devices. These devices typically include a heating component and a power supply component. The heating component heats the aerosol-generating substrate when powered, while the power supply component supplies power to the heating component.

[0003] In the prior art, the heating assembly generally includes a metal outer shell and a heating wire arranged inside the metal outer shell. During operation, the heating wire and the metal outer shell are in contact with each other, which easily causes the risk of short circuit failure, affecting the safe use of the aerosol generating device. Utility Model Content

[0004] The present application provides a heating component and an aerosol generating device, which can not only effectively ensure the heating effect of the heating component, but also avoid the occurrence of short-circuit failure accidents.

[0005] The present application provides a heating component, including a heat-conducting pipe, an insulating member and a heating member. The heat-conducting pipe has an installation groove extending along its axial direction inside, and the heat-conducting pipe is mainly made of metal material; the insulating member is embedded in the installation groove, and the insulating member has an accommodating channel extending along the axial direction; the heating member is arranged in the accommodating channel, and the heating member is used to generate heat when powered.

[0006] In an optional embodiment, the heat-conducting pipe includes a base portion and an insertion portion, the base portion and the insertion portion are arranged in sequence along the axial direction, the insertion portion is used for the heating component to be inserted into the aerosol generating matrix, and the mounting groove is arranged on the base portion.

[0007] In an optional embodiment, the base portion has a head end and a tail end relatively arranged along the axial direction, and the mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove and the second mounting groove are arranged in sequence along the direction from the head end to the tail end, and the size of the first mounting groove is smaller than the size of the second mounting groove.

[0008] In an optional embodiment, the base portion includes a first heat-conducting segment and a second heat-conducting segment, the first heat-conducting segment and the second heat-conducting segment are arranged sequentially along the direction from the head end to the tail end, and the thermal conductivity coefficient of the first heat-conducting segment is greater than the thermal conductivity coefficient of the second heat-conducting segment.

[0009] In an optional embodiment, the heating component further includes at least one transition layer, wherein the transition layer is disposed between the insulating member and the heat-conducting pipe member; the heat-conducting pipe member and the insulating member are die-cast or welded.

[0010] In an optional embodiment, the heat-conducting pipe includes a plurality of heat-conducting layers, which are sequentially arranged from the inside to the outside along a direction perpendicular to the axis, and at least two of the plurality of heat-conducting layers have different thermal conductivity coefficients.

[0011] In an optional embodiment, the heat-conducting pipe includes a first heat-conducting layer and a second heat-conducting layer, and the first heat-conducting layer and the second heat-conducting layer are arranged sequentially from the inside to the outside along a direction perpendicular to the axis, and the thermal conductivity of the first heat-conducting layer is greater than the thermal conductivity of the second heat-conducting layer.

[0012] In an optional embodiment, the metal material includes aluminum alloy and / or copper alloy; and / or the insulating part includes ceramic material, and the ceramic material includes at least one of aluminum nitride, silicon nitride, aluminum oxide, boron nitride, boron oxide, magnesium oxide and silicon carbide; and / or the heating element includes one of a heating tube, a heating rod, a heating film layer, a metal wire or a metal mesh.

[0013] In an optional embodiment, the heating assembly further includes a temperature measuring element, and the temperature measuring element is used to measure the heating temperature of the heating element.

[0014] The present application provides an aerosol generating device, comprising an outer shell, a power supply component and the heating component as described above, wherein the power supply component and the heating component are arranged inside the outer shell, and the power supply component and the heating component are electrically connected to provide the power required for the operation of the heating component.

[0015] According to the heating component in this embodiment, the heating component includes a heat-conducting pipe, an insulating member and a heating element. The interior of the heat-conducting pipe has an installation groove extending along its axial direction. The heat-conducting pipe is mainly made of metal material. The insulating member is embedded in the installation groove. The insulating member has a receiving channel extending along the axial direction. The heating element is arranged in the receiving channel, and the heating element is used to generate heat when it is powered on. Since the heat-conducting pipe is made of metal material, the heat-conducting pipe can conduct heat and electricity. When the heating element is arranged inside the heat-conducting pipe, there is a risk of short circuit when the heating element contacts the heat-conducting pipe made of metal material. Due to the setting of the insulating member, the circuit connection between the heating element and the heat-conducting pipe can be blocked, thereby avoiding the risk of short circuit failure and improving the safety of the use of the generating device. At the same time, by cooperating with the heating element and the heat-conducting pipe, the heat-conducting pipe is used as the intermediate heat-conducting medium, which can avoid the risk of burning that may occur when the heating element directly contacts the material to be heated. The setting of the heat-conducting pipe can also increase the heating area and uniformly heat the temperature to obtain a good heating effect. The provision of the mounting groove facilitates the assembly and fixation of the insulating member, simplifies the assembly procedure, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of the structure of a heating component in one embodiment;

[0017] Figure 2 An exploded view of the structure of a heating assembly in one embodiment;

[0018] Figure 3 This is a cross-sectional view of the structure of the heat-conducting pipe in the first embodiment;

[0019] Figure 4 This is a schematic structural diagram of a heat-conducting pipe in the second embodiment;

[0020] Figure 5 A structural cross-sectional view of a heat-conducting pipe in a third embodiment;

[0021] Figure 6 It is a structural cross-sectional view of a heating component in another embodiment.

[0022] Among them: 100, heat-conducting pipe; 110, mounting groove; 111, first mounting groove; 112, second mounting groove; 120, base; 121, head end; 122, tail end; 123, first heat-conducting section; 124, second heat-conducting section; 125, first heat-conducting layer; 126, second heat-conducting layer; 130, insertion part; 200, insulating part; 210, accommodating channel; 300, heating element; 400, transition layer; 500, lead. DETAILED DESCRIPTION

[0023] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may 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. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0024] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0025] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0026] The present application provides an aerosol generating device (hereinafter referred to as "generating device"), which can heat an aerosol generating substrate to generate an aerosol that can be used.

[0027] It should be noted that the term aerosol refers to a dispersion of solid or liquid particles in a gas. As used herein, "aerosol" may generally 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.

[0028] As used herein, the term "aerosol-forming substrate" refers to any suitable compound or mixture of compounds that facilitates the formation of an aerosol (e.g., a stable aerosol that is substantially resistant to thermal degradation at the operating temperature of the system) during use. Suitable aerosol-forming substrates 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.

[0029] The aerosol-generating substrate may include nicotine. The aerosol-generating substrate may include water. The aerosol-generating substrate may include glycerol (also known as glycerol) having a higher boiling point than nicotine. The aerosol-generating substrate may include propylene glycol. The aerosol-generating substrate may include a plant-based material. The aerosol-generating substrate may include a homogenized plant-based material. The homogenized plant-based material may contain volatile compounds. These compounds may be released from the aerosol-generating substrate upon heating.

[0030] The generating device includes an outer shell (not shown in the figure), a heating component and a power supply component (not shown in the figure). An installation space is provided in the outer shell, and the heating component and the power supply component are both arranged in the installation space. The power supply component and the heating component are electrically connected to provide the power required for the operation of the heating component. The outer shell can be understood as a collection of related structures that constitute the overall outer contour of the generating device. For example, the outer shell can be constructed by combining one or more components, and a corresponding assembly structure is provided inside the outer shell or on the shell wall so that other components of the generating device can be assembled in the outer shell. For example, the PCB control circuit board (not shown in the figure) and the battery (not shown in the figure) in the power supply component can be assembled in the interior of the outer shell, and the operating buttons in the power supply component can be installed on the outer shell in a manner that is exposed to the outer shell. With the help of the outer shell, the user can carry, move, operate and use the aerosol generating device.

[0031] Since the outer shell and power supply components in the generating device belong to the prior art and are not the focus of protection in this application, the heating component will be introduced in detail below.

[0032] See also Figures 1 to 6 The heating component includes a heat-conducting pipe 100, an insulating member 200 and a heating member 300. The interior of the heat-conducting pipe 100 has a mounting groove 110 extending along its axial direction. The heat-conducting pipe 100 is mainly made of metal material. The insulating member 200 is embedded in the mounting groove 110. The insulating member 200 has a receiving channel 210 extending along the axial direction. The receiving channel 210 passes through the insulating member 200. The heating member 300 is arranged in the receiving channel 210. The heating member 300 is used to generate heat when powered on. The heating component can be used in an aerosol generating device to heat and bake an aerosol matrix. Of course, it can also be used in other fields to heat and bake a target substance.

[0033] Since the heat-conducting pipe fitting 100 is made of a metal material, the heat-conducting pipe fitting 100 can conduct heat and electricity. When the heating element 300 is set inside the heat-conducting pipe fitting 100, there is a risk of short circuit when the heating element 300 contacts the heat-conducting pipe fitting 100 made of a metal material. In particular, the heat-conducting pipe fitting 100 with an outer diameter of less than 2.3 mm usually has a resistance wire wound inside the heat-conducting pipe fitting 100, which has a greater risk of short circuit. Due to the setting of the insulating member 200, the circuit connection between the heating element 300 and the heat-conducting pipe fitting 100 can be blocked, thereby avoiding the risk of short circuit failure and improving the safety of the use of the generating device. At the same time, by cooperating with the heating element 300 and the heat-conducting pipe fitting 100, the heat-conducting pipe fitting 100 is used as the intermediate heat-conducting medium, which can avoid the risk of burning that may occur when the heating element 300 directly contacts the material to be heated. The setting of the heat-conducting pipe fitting 100 can also increase the heating area and evenly heat the temperature to obtain a good heating effect. Due to the provision of the mounting groove 110 , the assembly and fixation of the insulating member 200 is facilitated, the assembly procedure can be simplified, and the cost can be reduced.

[0034] See also Figure 2 The heat-conducting pipe 100 includes a base portion 120 and an insert portion 130, which are arranged in sequence along the axial direction. The insert portion 130 is used for inserting the heating component into the aerosol generating matrix, and the mounting groove 110 is provided in the base portion 120. The base portion 120 and the insert portion 130 can be an integral structure to improve the consistency of the heat-conducting pipe 100. During assembly, the insulating member 200 enters the heat-conducting pipe 100 from the end of the base portion 120 away from the insert portion 130 and is nested in the mounting groove 110. Of course, the base portion 120 and the insert portion 130 can also be a separate structure. During assembly, the insulating member 200 can be inserted into the interior of the base portion 120 from one of the two ends of the base portion 120. After the insert portion 130 is installed, the base portion 120 and the insert portion 130 can be connected by welding or plugging. The insert portion 130 has a conical structure or a polygonal pyramid structure.

[0035] In one embodiment, the insertion portion 130 may also be a hollow structure, which may be connected to the mounting groove 110 and closed at one end away from the base portion 120, thereby reducing the weight of the heating component and reducing heat loss due to self-heating of the heating component.

[0036] In one embodiment, the outer shape of the insulating member 200 is a block-shaped or sheet-shaped rectangular parallelepiped or cylindrical shape, and the cross-section of the insulating member 200 is circular, elliptical, rectangular, triangular or polygonal. Adaptively, the mounting groove 110 is a cylindrical groove or a rectangular parallelepiped groove, matching the outer shape of the insulating member 200, so that the insulating member 200 is embedded in the mounting groove 110. Since the function of the mounting groove 110 is to fix the insulating member 200, the insulating member 200 also extends along the axial direction of the thermal conductive pipe 100. Therefore, the extension length of the mounting groove 110 can be less than the extension length of the insulating member 200. During assembly, the mounting groove 110 is arranged close to the insertion portion 130, so that part of the structure of the insulating member 200 is arranged in the mounting groove 110, which can also fix the insulating member 200. Of course, the extension length of the mounting groove 110 can be the same as the extension length of the insulating member 200, or greater than the extension length of the insulating member 200.

[0037] See also Figure 3 In one embodiment, the base portion 120 has a head end 121 and a tail end 122 that are relatively arranged along the axial direction, and the mounting groove 110 includes a first mounting groove 111 and a second mounting groove 112. The first mounting groove 111 and the second mounting groove 112 are arranged in sequence along the direction from the head end 121 to the tail end 122, and the size of the first mounting groove 111 is smaller than the size of the second mounting groove 112.

[0038] It should be further explained that the dimensions of the first mounting groove 111 and the second mounting groove 112 described above refer to the dimensions in the radial direction of the heat-conducting pipe 100, that is, the dimensions in the direction perpendicular to the axis. When the first mounting groove 111 and the second mounting groove 112 are cylindrical grooves, that is, the radius dimensions of the first mounting groove 111 and the second mounting groove 112, since the first mounting groove 111 is smaller than the second mounting groove 112, the first mounting groove 111 can secure the insulating member 200, and the second mounting groove 112 can thin the heat-conducting pipe 100, forming a thin-walled tube structure, thereby reducing the mass of the entire heat-conducting pipe 100, reducing the energy required to heat the heat-conducting pipe 100, thereby increasing the heating rate and improving the heat conduction effect of the heat-conducting pipe 100.

[0039] See also Figure 4 The base portion 120 includes a first heat-conducting segment 123 and a second heat-conducting segment 124, which are arranged sequentially from the leading end 121 to the trailing end 122. The thermal conductivity of the first heat-conducting segment 123 is greater than that of the second heat-conducting segment 124, i.e., the thermal conductivity is higher at the end closer to the insertion portion 130, resulting in better thermal conductivity. This effectively ensures heat conduction, improves heat utilization, and reduces costs. The first and second heat-conducting segments 123, 124 can be connected into a single structure through splicing or riveting, a mature process that helps further reduce processing costs.

[0040] In one embodiment, the metal material used to make the heat-conducting pipe 100 includes at least one of aluminum alloy, copper alloy, stainless steel alloy, titanium alloy and conductive ceramic. The first heat-conducting section 123 can be selected from at least one of aluminum alloy and copper alloy with large thermal conductivity, and the second heat-conducting section 124 can be selected from at least one of stainless steel alloy, titanium alloy and conductive ceramic with small thermal conductivity.

[0041] Of course, in other embodiments, the heat-conducting pipe 100 is not limited to including only two different heat-conducting sections (i.e., the first heat-conducting section 123 and the second heat-conducting section 124). The heat-conducting pipe 100 may include more than two heat-conducting sections. The heat-conducting pipe 100 may be provided with a thermal conductivity gradient along its axial direction according to its thermal conductivity characteristics. That is, along the direction from the head end 121 to the tail end 122, by using different materials, the thermal conductivity of the entire heat-conducting pipe 100 may decrease linearly.

[0042] The material for making the insulating member 200 is preferably a ceramic material with good thermal conductivity, including but not limited to at least one of aluminum nitride (AlN), silicon nitride (Si3N4), aluminum oxide (Al2O3), boron nitride (BN), boron nitride (BeO), magnesium oxide and silicon carbide (SiC).

[0043] To effectively ensure the integrity of the thermally conductive pipe 100 and the insulating member 200, the thermally conductive pipe 100 and the insulating member 200 are die-cast. For example, a metal die-casting process can be used. The insulating member 200, with the internal heating element 300, is placed in a mold and preheated. Then, the aluminum alloy or copper alloy thermally conductive pipe 100 is die-cast in the mold. The thermally conductive pipe 100 and the insulating member 200 can also be connected by welding. For example, brazing material or brazing strip is applied between the outer surface of the insulating member 200 and the thermally conductive pipe 100. After high-temperature treatment, the insulating member 200 and the thermally conductive pipe 100 are welded together.

[0044] It should be noted that the die casting mentioned above is also called pressure casting, which is a metal casting process characterized by the use of a mold cavity to apply high pressure to the melted metal. The mold is usually made of a higher strength alloy, and this process is somewhat similar to injection molding. Most die castings are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, lead-tin alloys and their alloys. Depending on the type of die casting, a cold chamber die casting machine or a hot chamber die casting machine is required. In this application, a hot chamber die casting machine can be used to directly die-cast the insulating part 200 and the heat-conducting pipe 100.

[0045] In one embodiment, the heat-conducting pipe 100 includes multiple (two or more) heat-conducting layers, which are arranged in sequence from the inside to the outside along the vertical axis direction. At least two of the multiple heat-conducting layers have different thermal conductivity coefficients, and the multiple heat-conducting layers can be spliced ​​into an integrated structure.

[0046] See also Figure 5 The heat-conducting pipe 100 includes a first heat-conducting layer 125 and a second heat-conducting layer 126. The first heat-conducting layer 125 and the second heat-conducting layer 126 are arranged in sequence from the inside to the outside along the vertical axis. The thermal conductivity of the first heat-conducting layer 125 is greater than the thermal conductivity of the second heat-conducting layer 126. The arrangement of the first heat-conducting layer 125 can improve the heat conduction effect. The arrangement of the second heat-conducting layer 126 can prevent the temperature of the contact surface with the aerosol generating matrix from being too high, thereby preventing the aerosol generating matrix from being burned due to excessive temperature.

[0047] In one embodiment, the heating element 300 is disposed in contact with the inner wall of the insulating member 200 and is electrically connected to the power supply assembly via a lead 500. One end of the lead 500 is connected to the heating element 300, and the other end is led along the end surface of the insulating member 200 near the tail end 122 to the inner wall of the thermally conductive pipe 100, and then led along the inner wall of the thermally conductive pipe 100. Alternatively, the thermally conductive pipe 100 is used as a partial conductive structure, and the lead 500 is disposed at the tail end 122 of the thermally conductive pipe 100, and the portion of the heating element 300 near the tail end 122 is electrically connected to the thermally conductive pipe 100. The heating element 300 includes one of a heating pipe, a heating rod, a heating film layer, a metal wire, or a metal mesh. For example, the heating element 300 may be a heating layer coated on the insulating element 200 made of ceramic, so that the heating element 300 and the insulating element 200 form a ceramic-based thick film heating element, and the heating layer slurry includes at least one of tungsten slurry, titanium slurry, silver palladium slurry, platinum slurry, iron-nickel alloy slurry, nickel-chromium alloy slurry, graphite slurry and nickel slurry. The heating element 300 may also be a heating film formed on the surface of the insulating element 200 made of ceramic, so that the heating element 300 and the insulating element 200 form a ceramic-based thin film heating element, and the material of the heating film includes a metal film such as titanium film or tungsten film, or a transparent conductive oxide film such as ITO or AZO, or other nitride or carbide conductive film. The heating element 300 may also be a heating element in which a metal wire or mesh is packaged with a ceramic as a whole, and the material of the metal wire or mesh includes but is not limited to titanium, iron-nickel alloy, SUS316, SUS904, constantan alloy, manganese-copper alloy, germanium-manganese-copper alloy, nickel-chromium alloy, iron-chromium-aluminum alloy, tungsten, etc., or carbon wire, conductive SiC wire, etc.

[0048] See also Figure 6The heating component also includes at least one transition layer 400. Multiple (two or more) transition layers 400 are sequentially arranged between the insulating member 200 and the thermally conductive pipe 100 from the inside to the outside along the axis direction perpendicular to the thermally conductive pipe 100. The expansion coefficient of the transition layer 400 is between the expansion coefficient of the thermally conductive pipe 100 and the expansion coefficient of the insulating member 200. When the thermally conductive pipe 100 and the insulating member 200 are combined by welding or high-temperature die-casting, the shrinkage difference between the two can be buffered, thereby making the bonding effect between the thermally conductive pipe 100 and the insulating member 200 better, and ensuring the contact heat transfer effect of the insulating member 200 to the thermally conductive pipe 100 after nesting, and ensuring good thermal expansion coefficient matching. The transition layer 400 is a metal layer with conductive properties. Therefore, the transition layer 400 is arranged near the area of ​​the insulating member 200 where the lead 500 is not led out to avoid the risk of short circuit due to contact with the lead 500. Before formal assembly, the assembly surface is flattened to improve the assembly surface fitting effect, improve the assembly stability, and ensure uniform heat conduction, so that the temperature of the entire surface of the heat-conducting pipe 100 is uniform, thereby uniformly heating the aerosol generating matrix.

[0049] In one embodiment, the heating assembly further includes a temperature measuring element (not shown in the figure) for measuring the heating temperature of the heating element 300. The temperature measuring element can sense the temperature by measuring the change in the resistance value of the heating element 300. Of course, a temperature sensor can also be used to directly monitor the temperature to achieve control of the heating temperature.

[0050] The above specific examples are used to illustrate 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 art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.

Claims

1. A heating component, characterized in that: include: A heat-conducting pipe, wherein the heat-conducting pipe has an installation groove extending along the axial direction thereof, and the heat-conducting pipe is mainly made of metal material; an insulating member, the insulating member being embedded in the mounting groove and having an accommodating channel extending along the axial direction; as well as A heating element is provided in the accommodating channel and is used for generating heat when powered on.

2. The heating assembly according to claim 1, wherein The heat-conducting pipe comprises a base portion and an insertion portion, the base portion and the insertion portion are sequentially arranged along the axial direction, the insertion portion is used for the heating component to be inserted into the aerosol generating matrix, and the mounting groove is arranged on the base portion.

3. The heating assembly according to claim 2, characterized in that The base portion has a head end and a tail end that are relatively arranged along the axial direction, and the mounting groove includes a first mounting groove and a second mounting groove. The first mounting groove and the second mounting groove are arranged in sequence along the direction from the head end to the tail end, and the size of the first mounting groove is smaller than the size of the second mounting groove.

4. The heating assembly according to claim 3, characterized in that The base portion includes a first heat-conducting segment and a second heat-conducting segment, the first heat-conducting segment and the second heat-conducting segment are arranged sequentially along the direction from the head end to the tail end, and the thermal conductivity of the first heat-conducting segment is greater than the thermal conductivity of the second heat-conducting segment.

5. The heating assembly according to claim 1, wherein: The heating component further comprises at least one transition layer, wherein the transition layer is arranged between the insulating component and the heat-conducting pipe component; the heat-conducting pipe component and the insulating component are die-cast or welded.

6. The heating assembly according to claim 1, wherein The heat-conducting pipe comprises a plurality of heat-conducting layers, which are sequentially arranged from the inside to the outside along a direction perpendicular to the axis, and at least two of the plurality of heat-conducting layers have different thermal conductivities.

7. The heating assembly according to claim 6, characterized in that The heat-conducting pipe includes a first heat-conducting layer and a second heat-conducting layer. The first heat-conducting layer and the second heat-conducting layer are sequentially arranged from the inside to the outside along a direction perpendicular to the axis. The thermal conductivity of the first heat-conducting layer is greater than that of the second heat-conducting layer.

8. The heating assembly according to claim 1, wherein: The metal material includes aluminum alloy and / or copper alloy; and / or the insulating part includes ceramic material, and the ceramic material includes at least one of aluminum nitride, silicon nitride, aluminum oxide, boron nitride, boron oxide, magnesium oxide and silicon carbide; and / or the heating element includes one of a heating tube, a heating rod, a heating film layer, a metal wire or a metal mesh.

9. The heating assembly according to claim 1, wherein: The heating assembly further includes a temperature measuring element, which is used to measure the heating temperature of the heating element.

10. An aerosol generating device, characterized in that: It comprises an outer shell, a power supply component and a heating component as described in any one of claims 1 to 9, wherein the power supply component and the heating component are arranged inside the outer shell, and the power supply component and the heating component are electrically connected to provide the power required for the operation of the heating component.

Images