Heating Assembly and Aerosol Generating Device

Abstract

The present application provides a heating assembly and an aerosol generating device. The heating assembly includes a housing structure, a plurality of heating films, and a power supply assembly. The housing structure has a proximal opening through which an aerosol generating product is received and heated to emit infrared rays for heating the aerosol generating product. The plurality of heating films are spaced apart from the housing structure along the longitudinal direction of the housing structure and are used for heating the housing structure when energized. Each heating film is linearly distributed. The power supply assembly includes at least three electrodes. The at least three electrodes are respectively coupled to a power supply assembly and are disposed at the first end and / or the second end of the housing structure. Two electrodes form a group and are electrically connected to one heating film to supply power to the corresponding heating film. The heating assembly realizes segmented heating, guarantees continuous emission of aerosol and the taste of suction, simultaneously avoids the phenomenon that the local temperature is too high or too low, and reduces the energy consumption of the heating assembly.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims priority from a Chinese patent application with the application number 202211132175.9 filed on September 16, 2022, and the entire content of the Chinese patent application is incorporated herein by reference in its entirety.

[0002] This application relates to the field of electronic atomization technology, and particularly to a heating assembly and an aerosol generating device.

Background Art

[0003] Conventional aerosol - generating products generate a large amount of harmful substances during the combustion process. Heat - not - burn aerosol - generating devices can atomize aerosol - generating products to generate aerosols by heating a special heating assembly to about 350 °C, and can significantly reduce harmful substances. Compared with other electronic atomization devices, heat - not - burn aerosol - generating devices can control the firing temperature of aerosol - generating products by controlling the temperature of the heating assembly to form aerosols, and are more popular among consumers.

[0004] The form of the heating assembly can be divided into two types: a central heating assembly inserted into the aerosol - generating product and a circumferential heating assembly wound around the outside of the aerosol - generating product. Currently, whether it is central heating or circumferential heating, generally the entire heating element rises to a certain temperature, and at the same time, the aerosol - generating product is heated along the axial direction and height direction of the aerosol - generating product. The problem caused thereby is that according to the requirements of the actual temperature field of the heating element, the heating element cannot be controlled to heat the aerosol - generating product by dividing it along the axial direction of the aerosol - generating product (for example, dividing the aerosol - generating product into two sections). Especially when using non - divided control integrated heating for aerosol - generating products with a long length, the local temperature is too high or too low, which affects the taste of the aerosol.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The heating assembly and the aerosol generating device provided by the present application are such that the conventional heating assembly cannot control the heating element to heat the aerosol generating product by dividing it along the axial direction of the aerosol generating product (for example, dividing the aerosol generating product into two sections) according to the requirements of the actual temperature field of the heating element. In particular, when using non-divided control integrated heating for aerosol generation with a long length, local temperatures are too high or too low, which affects the taste of the aerosol. The purpose is to solve this problem.

Means for Solving the Problems

[0006] To solve the above technical problems, one technical solution adopted by the present application is as follows. A heating assembly is provided, which includes a housing structure, a plurality of heating films, and a power supply assembly. Here, the housing structure has a proximal opening through which the aerosol generating product is accommodated and is used to heat the aerosol generating product by emitting infrared rays when heated. The plurality of heating films are installed at intervals along the longitudinal direction of the housing structure and are used to heat the housing structure when energized. Here, each heating film is linearly distributed. The power supply assembly includes at least three electrodes. At least three of the electrodes are respectively coupled to a power supply assembly and are arranged at the first end and / or the second end of the housing structure. Two of the electrodes form a group and are electrically connected to one heating film to supply power to the corresponding heating film.

[0007] Here, each heating film includes at least one heating wire.

[0008] Here, each heating film includes at least two heating wires connected in parallel.

[0009] Here, at least a part of the at least two heating wires is a curve.

[0010] Here, the curve is a U-shaped curve or an S-shaped curve.

[0011] Here, the plurality of heating films includes a first heating film and a second heating film. Here, the power supply assembly includes a first electrode, a second electrode, a third electrode, and a fourth electrode. The first electrode and the second electrode are installed at a first end of the housing structure and are electrically connected to the first heating film respectively. The third electrode and the fourth electrode are installed at a second end of the storage structure and are electrically connected to the second heating film respectively.

[0012] Here, both ends of the plurality of heating wires of the first heating film are extended to positions close to the first end of the housing structure and are electrically connected to the first electrode and the second electrode respectively. Both ends of the plurality of heating wires of the second heating film are extended to positions close to the second end of the housing structure and are electrically connected to the third electrode and the fourth electrode respectively.

[0013] Here, each of the first electrode, the second electrode, the third electrode, and the fourth electrode includes a coupling portion and a connection portion. The coupling portion is installed at an end of the housing structure and is used to couple with a power supply assembly to supply power to the corresponding heating film. The connection portion is electrically connected to the coupling portion and extends in a direction away from the coupling portion along the longitudinal direction of the housing structure and is electrically connected to one end of each heating wire of the adjacent heating film.

[0014] Here, the coupling portion is configured as an arc-shaped structure extending along the circumferential direction of the housing structure.

[0015] Here, each of the heating films includes a first heating wire and a second heating wire that are installed at intervals. The first heating wire is a curve extending along the circumferential direction of the housing structure, and the second heating wire surrounds the peripheral contour of the first heating wire.

[0016] Here, the second heating wire includes a first portion, a second portion, and a third portion that are connected in sequence. Along the circumferential direction of the housing structure, the first portion is located on one side of the first heating wire, the third portion is located on the other side of the first heating wire, the first portion is a curve extending along the circumferential direction of the housing structure, the third portion is a straight line extending along the longitudinal direction of the housing structure, the second portion is located on the side where the first heating wire approaches the central region of the housing structure, and the second portion is a straight line extending along the circumferential direction of the housing structure.

[0017] Here, both the first portion and the first heating wire are U-shaped curves, and the dimensions of each U-shaped structure are the same.

[0018] Here, the plurality of heating films includes a first heating film and a second heating film. The power supply assembly includes a first electrode, a second electrode, and a third electrode. The first electrode is installed at the first end of the housing structure and is electrically connected to the first heating film. The second electrode is installed at the second end of the housing structure and is electrically connected to the second heating film. The third electrode and the first electrode or the second electrode are located at the same end of the housing structure and are electrically connected to the first heating film and the second heating film, respectively.

[0019] Here, the first electrode and / or the second electrode is an arc-shaped structure extending along the circumferential direction of the housing structure. The third electrode includes a common coupling portion and a common connection portion. The common coupling portion and the first electrode, or the common coupling portion and the second electrode, are located at the same end of the housing structure and are used to be coupled to a power supply assembly. The common connection portion is electrically connected to the common coupling portion and extends in a direction away from the common coupling portion along the longitudinal direction of the housing structure, and is electrically connected to the first heating film and the second heating film, respectively.

[0020] Here, a plurality of heating wires of the first heating film and a plurality of heating wires of the second heating film are curves extending along the longitudinal direction of the housing structure, respectively.

[0021] Here, the first heating film further includes a first connection portion and a second connection portion. The first end portions of the respective heating wires in the first heating film are connected to the first connection portion respectively, and are electrically connected to the first electrode through a part of the first connection portion. The second end portions of the respective heating wires in the first heating film are connected to the second connection portion respectively, and are electrically connected to the third electrode through a part of the second connection portion. And / or, the second heating film further includes a third connection portion and a fourth connection portion. The first end portions of the respective heating wires in the second heating film are connected to the third connection portion respectively, and are electrically connected to the second electrode through a part of the third connection portion. The second end portions of the respective heating wires of the second heating film are connected to the fourth connection portion respectively, and are electrically connected to the third electrode through a part of the fourth connection portion.

[0022] Here, the housing structure includes a base body and a radiation layer. The base body has a hollow tubular shape and is used to accommodate an aerosol generating product. The radiation layer is installed on the inner surface of the side wall of the base body and is used to emit infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the side of the base body away from the radiation layer.

[0023] Here, the housing structure includes a base body and a radiation layer. The base body is in a hollow tubular shape and is used for containing an aerosol generating product. The radiation layer is installed on the outer surface of the side wall of the base body and is used for radiating infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the side away from the base body of the radiation layer.

[0024] Here, the housing structure includes a base body. The base body is in a hollow tubular shape, and the base body includes a main body and an infrared radiation material dispersed in the main body. The base body is used for containing an aerosol generating product and is used for radiating infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the outer surface of the side wall of the base body.

[0025] Here, the base body is a transparent base body.

[0026] To solve the above technical problems, another technical solution adopted by this application is as follows. An aerosol generating device is provided. The aerosol generating device includes a heating assembly and a power supply assembly. Here, the heating assembly is the above heating assembly, and the power supply assembly is electrically connected to the heating assembly and is used for supplying power to the heating assembly.

[0027] The beneficial effects of the embodiments of the present application are different from those of the prior art. The present application provides a heating assembly and an aerosol generating device. The heating assembly is provided with a housing structure and a plurality of heating films, and the plurality of heating films are installed in the housing structure at intervals along the longitudinal direction of the housing structure, and the heating films are distributed linearly. When the plurality of heating films are energized, the housing structure is heated, whereby the housing structure is heated and emits infrared rays, and the aerosol generating product accommodated in the housing structure is heated and atomized by using the infrared rays. Here, by the infrared heating method, the infrared rays have a certain permeability, do not require a medium, have high heating efficiency, can effectively improve the preheating efficiency of the aerosol generating product, and can effectively reduce the temperature difference between the inside and the outside of the aerosol generating product, whereby the baking of the aerosol generating product becomes more uniform, and the problem of burning of the aerosol generating product caused by local high temperature is avoided. In addition, by installing a power supply assembly, the power supply assembly includes at least three electrodes, and every two electrodes form a group and are electrically connected to one heating film, and power is supplied to the corresponding heating film through the electrode group. The plurality of heating films arranged at intervals independently receive the power of the power supply assembly by the corresponding electrode group, whereby a plurality of heating regions are formed in the housing structure along the longitudinal direction of the housing structure, realizing the divided heating of the heating assembly along the longitudinal direction. Furthermore, the heating assembly controls the heating temperature of different heating regions according to the requirements of the actual temperature field, guarantees the consistency of the user's taste before and after the continuous discharge and suction of the aerosol, and avoids the phenomenon that the local temperature is too high or too low.Moreover, by installing at least three electrodes for coupling with the power supply assembly at the first end and / or the second end of the housing structure, power can be supplied to each of the plurality of heating films, not only realizing the split heating function of the heating assembly, but also eliminating the need to separately provide an electrode coupled to the power supply in the central region of the housing structure along the longitudinal direction, effectively avoiding the problem that the electrode located in the intermediate region of the housing structure conducts heat to the outside due to contact with other metals, thereby not only reducing the energy consumption of the heating assembly, but also ensuring the temperature consistency between the intermediate region of the housing structure and other adjacent regions, improving the atomization effect of the aerosol-generating product corresponding to the intermediate region of the housing structure, and improving the suction texture and experience of the user.

Brief Description of the Drawings

[0028]

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Figure 5b

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Figure 9a

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Figure 17

MODE FOR CARRYING OUT THE INVENTION

[0029] Hereinafter, the technical solutions of the embodiments of the present application will be clearly and completely described with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present application.

[0030] In this application, terms such as "first", "second", "third", etc. are used only for illustrative purposes and should not be construed as indicating or implying relative importance or suggesting the number of the indicated technical features. Accordingly, features defined as "first", "second", "third" can include at least one of such features either explicitly or implicitly. In the description of this application, "a plurality" means at least two, for example two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are used to interpret the relative positional relationship, movement status, etc. between components in a specific posture (such as shown in the drawings). When the specific posture changes, the directionality changes accordingly. Also, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, and may optionally further include steps or units not listed, or may optionally further include other steps or units specific to these processes, methods, products or devices.

[0031] As used herein, the term "embodiment" means that a particular feature, structure or characteristic described with reference to an embodiment may be included in at least one embodiment of this application. The repeated occurrence of this associated term in each part of the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. As will be explicitly and implicitly understood by those skilled in the art, the embodiments described herein can be combined with other embodiments.

[0032] Hereinafter, this application will be described in detail with reference to the drawings and embodiments.

[0033] Referring to FIG. 1, FIG. 1 is a schematic diagram of an aerosol generation system according to an embodiment of this application.

[0034] In this embodiment, an aerosol generation system is provided. The aerosol generation system includes an aerosol generation device 1 and an aerosol generation product 2 housed in the aerosol generation device 1. Here, the aerosol generation device 1 is used to heat and atomize the aerosol generation product 2 to form an aerosol for the user to inhale. Specifically, the aerosol generation device 1 can be used in technical fields such as medical treatment, beauty, healthcare, and electronic atomization. For its specific structure and functions, reference can be made to the description of the aerosol generation device 1 provided in the following embodiments. The aerosol generation product 2 can use a solid matrix, and the solid matrix includes one or more powders, granules, fragments, strips or flakes of plant leaves such as tobacco, herb leaves, tea leaves, mint leaves, etc. Or the solid matrix can include additional volatile flavor compounds released when the matrix is heated. Of course, the aerosol generation product can also be a liquid matrix or a paste-like matrix such as oil and medicinal liquid added with aromatic components.

[0035] Referring to FIG. 2, FIG. 2 is a schematic diagram of an aerosol generation device 1 according to an embodiment of the present application.

[0036] In this embodiment, an aerosol generation device 1 is provided, and the aerosol generation device 1 includes a heating assembly 10 and a power supply assembly 20. Here, the heating assembly 10 is used to accommodate and atomize the aerosol generation product 2 when energized to generate an aerosol. For the specific structure and functions of the heating assembly 10, reference can be made to the heating assembly 10 according to any of the following embodiments. The power supply assembly 20 is electrically connected to the heating assembly 10 and is used to supply power to the heating assembly 10. Specifically, the power supply assembly 20 may be a lithium-ion battery.

[0037] Referring to FIGS. 3 and 4, FIG. 3 is a cross-sectional view of the heating assembly provided by the first embodiment of the present application, and FIG. 4 is a perspective view of the heating assembly provided by the embodiment of the present application. In the first embodiment, a heating assembly 10 is provided. The heating assembly 10 includes a housing structure 11, a plurality of heating films 12, and a power supply assembly 13.

[0038] As shown in FIG. 3, the housing structure 11 includes a base body 111 and a radiation layer 112. The shape of the base body 111 is a hollow tubular shape, and the base body 111 has a housing cavity 110 and a proximal opening and a distal opening communicating with the housing cavity 110. The proximal opening and the distal opening are oppositely arranged along the longitudinal direction C of the base body 111. Hereinafter, it is defined that the proximal opening is located at the first end a of the housing structure 11, and the distal opening is located at the second end b of the housing structure 11. The housing cavity 110 is used to house the aerosol generating product 2. The aerosol generating product 2 is specifically housed in or taken out of the housing cavity 110 along the longitudinal direction C of the housing cavity 110 through the proximal opening. Here, the proximal opening is one end close to the suction nozzle of the heating assembly 10. Specifically, the base body 111 may be a hollow tubular structure, and the hollow tubular structure is formed by surrounding the housing cavity 110. Specifically, the outer diameter of the base body 111 is uniform along its longitudinal direction C. Specifically, the shape of the base body 111 may specifically be a hollow cylindrical shape.

[0039] Specifically, the base body 111 may be manufactured from an insulating material. For example, the base body 111 may be a quartz tube, a ceramic tube, a mica tube, or the like. Preferably, the base body 111 may be a transparent quartz tube to facilitate the transmission of infrared rays. Of course, the base body 111 can also be manufactured using a non-insulating material, for example, made of a metal such as stainless steel or aluminum.

[0040] The radiation layer 112 is installed on the inner surface of the side wall of the base body 111, radiates infrared rays when heated, and is used to heat and atomize the aerosol generating product 2 accommodated in the accommodation cavity 110 by using the infrared rays. The above-mentioned method of heating the aerosol generating product 2 by using infrared rays does not require a medium because infrared rays have a certain permeability, has high heating efficiency, can effectively improve the preheating efficiency of the aerosol generating product 2, reduce the temperature difference between the inside and outside of the aerosol generating product 2, thereby making the baking of the aerosol generating product 2 more uniform, and avoiding the problem that the aerosol generating product 2 is charred due to local high temperature. At the same time, by installing the radiation layer 112 on the inner surface of the base body 111, the infrared rays radiated from the radiation layer 112 can directly irradiate the aerosol generating product 2 without passing through the base body 111, and the utilization rate of infrared rays is high.

[0041] Here, the radiation layer 112 can be specifically formed on the entire inner surface of the side wall of the base body 111 by using methods such as silk screen printing, sputtering, coating, printing, etc. The radiation layer 112 may specifically be an infrared layer, and the material of the infrared layer includes at least one of high infrared emissivity materials such as perovskite-based, spinel-based, carbides, silicides, nitrides, oxides, and rare earth materials.

[0042] Combining FIGS. 3 to 5b, FIG. 5a is a schematic exploded view of the heating assembly shown in FIG. 4 in a first visual angle, and FIG. 5b is a schematic exploded view of the heating assembly shown in FIG. 4 in a second visual angle. A plurality of heating films 12 are installed on the side away from the radiation layer 112 of the base body 111 and are installed at intervals along the longitudinal direction C of the accommodation structure 11, and are used to generate the heat quantity for heating the radiation layer 112 when energized, and the radiation layer 112 is heated to radiate infrared rays. Specifically, for the heating film 12, a resistive material that releases Joule heat when energized is used, such as a thick film printed resistive layer, a thin film printed resistive layer, or a nano resistive layer, etc.

[0043] Here, as shown in FIG. 3, when the substrate 111 is an insulating substrate 111, a plurality of heating films 12 are specifically installed on the surface of the substrate 111 on the side away from the radiation layer 112, and the amount of heat generated by the heating film 12 is thermally conducted to the radiation layer 112 through the substrate 111 to heat the radiation layer 112. In this embodiment, it will be understood that the heating film 12 is directly disposed on the surface of the housing structure 11, that is, the heating film 12 is in direct contact with the surface of the housing structure 11. When the substrate 111 is a non-insulating substrate 111, preferably, the substrate 111 is made of a metal material, for example, made of stainless steel. As shown in FIG. 6, FIG. 6 is a cross-sectional view of the heating assembly 10 according to a specific embodiment of the present application. A first heat-resistant insulating layer 113 is further formed on the surface of the substrate 111 on the side away from the radiation layer 112. The heating film 12 is specifically installed on the surface of the first insulating layer 113 on the side away from the substrate 111, thereby preventing a short circuit between the heating film 12 and the substrate 111. In this case, the heat generated by the heating film 12 is sequentially passed through the first insulating layer 113 and the substrate 111 and thermally conducted to the radiation layer 112 to heat the radiation layer 112. In this embodiment, it will be understood that the heating film 12 is disposed on the housing structure 11 through the first insulating layer 113, that is, the heating film 12 is indirectly in contact with the surface of the housing structure 11. In a specific embodiment, the first insulating layer 113 can use an enamel layer.

[0044] In this embodiment, in order to improve the heat utilization rate of the heating assembly 10 and further improve the heating efficiency of the aerosol-generating product 2, referring to FIG. 7, FIG. 7 is a schematic structural diagram of the aerosol-generating product 2 provided by the embodiment of the present application being accommodated in the accommodation structure 11. When the aerosol-generating product 2 is accommodated in the accommodation cavity 110, the aerosol-generating product 2 is in direct contact with the inner surface of the side wall of the accommodation structure 11 (for example, the surface of the radiation layer 112). Thereby, infrared rays are radiated into the aerosol-generating product 2 to heat the aerosol-generating product 2. At the same time, the heat of the heating film 12 can be conducted to the aerosol-generating product 2 by the accommodation structure 11 (for example, the radiation layer 112), whereby the aerosol-generating product 2 is further heated by the heat, improving the heat utilization rate and accelerating the atomization efficiency and the generation rate of the aerosol.

[0045] Of course, in other embodiments, as shown in FIG. 8, FIG. 8 is a schematic structural view of an aerosol generating product 2 according to another embodiment of the present application being accommodated within an accommodation structure 11. When the aerosol generating product 2 is accommodated within the accommodation cavity 110, the aerosol generating product 2 may be disposed at a distance from the inner surface of the side wall of the accommodation structure 11 (for example, the radiation layer 112), thereby preventing the problem of the aerosol generating product 2 damaging the radiation layer 112. In this embodiment, it will be understood that the aerosol generating product 2 is mainly heated by infrared radiation. Further, a protective layer may be further coated on the surface of the heating film 12 or / and the radiation layer 112, and the protective layer may specifically be a glaze layer. Here, the thickness of the radiation layer 112 may be 10 - 100 μm. Preferably, the thickness of the radiation layer 112 is 20 - 40 μm. In this embodiment, the radiation layer 112 can be formed using a thick film printing method. The material of the radiation layer 112 can include one or more of black silicon, cordierite, transition metal oxide-based spinel, rare earth oxide, ion co-doped perovskite, silicon carbide, zircon, and boron nitride. Of course, the thickness of the radiation layer 112 may be 1 - 10 μm, and preferably, the thickness of the radiation layer 112 is 1 - 5 μm. In this embodiment, the radiation layer 112 is specifically a thin film plating film. The material of the radiation layer 112 may be CrC, TiCN, or a diamond-like carbon film (DLC).

[0046] Combined with FIG. 9a, FIG. 9a is a schematic view of a plurality of heating films and a power supply assembly shown in FIG. 4, developed along the circumferential direction of the accommodation structure 11. Each heating film 12 includes at least one heating wire. In one specific embodiment, each heating film 12 includes at least two heating wires 121, 122 connected in parallel, and each heating wire 121 / 122 is linear and extends along the longitudinal direction C of the accommodation structure 11 (refer to FIG. 13 below) or the circumferential direction (refer to FIG. 9a). It can be understood that the length dimension of the linear heating wire 121 is much larger than the width dimension.

[0047] In one specific embodiment, as shown in FIG. 9a, at least one of the at least two heating wires 121 and 122 is curved. Specifically, at least two of the heating wires 121 and 122 in each heating film 12 are both curved. The curve may be a U-shaped curve or an S-shaped curve. Of course, in other specific embodiments, each heating wire 121 and 122 may further be any irregularly curved line, for example, a curve combining an S shape and a U shape, and the present application is not limited thereto.

[0048] As shown in FIGS. 4 and 9a, the power supply assembly 13 includes at least three electrodes. The at least three electrodes are respectively coupled to the power supply assembly 20, and each two electrodes form a group, forming an independent power supply group and being electrically connected to one of the plurality of heating films 12, thereby supplying power to the corresponding heating film 12 through the power supply group, and controlling the power and heating time of each power supply group respectively through the electronic control panel of the aerosol generating device 1. The plurality of heating films 12 arranged at intervals can independently receive the power of the power supply assembly 20 through the corresponding power supply group, whereby a plurality of heating regions can be formed in the housing structure 11 along the longitudinal direction C of the housing structure 11, the heating assembly 10 realizes segmented heating along its longitudinal direction C, the heating assembly 10 can control the heating temperature of different heating regions according to the requirements of the actual temperature field, ensure the consistency of the user's taste before and after the continuous release and suction of the aerosol, and avoid the phenomenon that the local temperature is too high or too low. Here, each heating film 12 is connected to the corresponding two electrodes. Each electrode can specifically be composed of a highly conductive metal material such as silver, gold, copper, or an alloy containing gold, silver, and copper.

[0049] Specifically, as shown in FIG. 4, at least three electrodes are installed at the first end a and / or the second end b of the housing structure 11. Further, by providing at least three electrodes for coupling with the power supply assembly 20 at the first end a and / or the second end b of the housing structure 11, not only can power be supplied to each of the plurality of heating films 12 to realize the segmented heating function of the heating assembly 10, but it is also not necessary to provide additional electrodes coupled to the power supply in the central region of the housing structure 11 along the longitudinal direction C of the housing structure 11, effectively avoiding the problem that the electrodes located in the central region of the housing structure 11 conduct heat to the outside due to contact with other metals. Thereby, not only can the energy consumption of the heating assembly 10 be reduced, but also the temperature consistency between the central region and other adjacent regions of the housing structure 11 can be ensured, improving the atomization effect of the aerosol generating product 2 corresponding to the central region of the housing structure 11, and improving the suction texture and experience of the user.

[0050] In one embodiment, referring to FIGS. 4 to 9a together, the number of the plurality of heating films 12 is two, and the heating films 12 are the first heating film 12a and the second heating film 12b respectively. The first heating film 12a and the second heating film 12b are installed at intervals along the longitudinal direction C of the housing structure 11, and the first heating film 12a is installed at a position close to the first end a of the housing structure 11. The second heating film 12b is arranged at a position close to the second end b of the housing structure 11. Specifically, the first heating film 12a and the second heating film 12b are installed on both sides of the central cross-section of the housing structure 11 and are symmetrically distributed along the central cross-section. Here, the central cross-section of the housing structure 11 refers to a cross-section of the housing structure 11, and this cross-section passes through the midpoint of the housing structure 11 along the length direction C of the housing structure 11.

[0051] Specifically, as shown in FIG. 9a, the first heating film 12a and / or the second heating film 12b includes two heating wires installed at intervals. Hereinafter, the case where the first heating film 12a includes two heating wires, the first heating wire 121 and the second heating wire 122, installed at intervals will be described as an example. The first heating wire 121 is a U-shaped curve extending along the circumferential direction of the housing structure 11, and the opening direction of each U-shaped structure of the U-shaped curve is parallel to the longitudinal direction C of the housing structure 11. The second heating wire 122 presents a gate structure and surrounds the peripheral contour of the first heating wire 121.

[0052] Specifically, referring to FIG. 9b, FIG. 9b is a schematic structural diagram of the first heating film, the first electrode, and the second electrode in FIG. 9a. The second heating wire 122 includes a first portion 122a, a second portion 122b, and a third portion 122c. One end of the first portion 122a is electrically connected to the first electrode 131, and the other end is connected to the second portion 122b. One end of the third portion 122c is electrically connected to the second electrode 132, and the other end is electrically connected to the second portion 122b.

[0053] In a specific embodiment, along the circumferential direction of the housing structure 11, the first portion 122a of the second heating wire 122 is installed on one side of the first heating wire 121, the third portion 122c of the second heating wire 122 is installed on the other side of the first heating wire 121, and the third portion 122c of the second heating wire 122 extends in a direction approaching the first end a of the housing structure 11 along the longitudinal direction C of the housing structure 11 and presents a straight line shape.

[0054] The first portion 122a of the second heating wire 122 is a U-shaped curve extending along the circumferential direction of the housing structure 11. Specifically, the first portion 122a and the first heating wire 121 are located at the same height position along the longitudinal direction of the housing structure 11, and both the first portion 122a and the first heating wire 121 are U-shaped curves, and the dimensions of each U-shaped structure are the same.

[0055] The second part 122b of the second heating wire 122 is located closer to the central region of the housing structure 11 of the first heating wire 121, and the second part 122b extends in a straight line along the circumferential direction of the housing structure 11 and is configured as an arc-shaped structure.

[0056] The second heating film 12b includes two heating wires arranged at intervals, and its specific structure is the same as that of the first heating film 12a. Those skilled in the art can understand that the third part 122c of the second heating wire 122 of the second heating film 12b extends in a direction close to the second end b of the housing structure 11.

[0057] Combined with FIG. 9a, the power supply assembly 13 includes four electrodes, which are the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134, respectively. Here, the first electrode 131 and the second electrode 132 are installed at the first end a of the housing structure 11 and are electrically connected to the first heating film 12a, respectively. The third electrode 133 and the fourth electrode 134 are installed at the second end b of the housing structure 11 and are electrically connected to the second heating film 12b, respectively.

[0058] In a specific embodiment, both ends of the first heating wire 121 of the first heating film 12a extend to positions close to the first end a of the housing structure 11, and thereby are electrically connected to the first electrode 131 and the second electrode 132, respectively. Both ends of the second heating wire 122 of the first heating film 12a also extend to positions close to the first end a of the housing structure 11, and thereby are electrically connected to the first electrode 131 and the second electrode 132, respectively. Thereby, it is realized that a plurality of heating wires of the first heating film 12a are electrically connected to the first electrode 131 and the second electrode 132, respectively.

[0059] Both ends of the first heating wire 121 of the second heating film 12b are extended to positions close to the second end b of the housing structure 11, whereby they are electrically connected to the third electrode 133 and the fourth electrode 134, respectively. Both ends of the second heating wire 122 of the second heating film 12b are also extended to positions close to the second end b of the housing structure 11, whereby they are electrically connected to the third electrode 133 and the fourth electrode 134, respectively. Thereby, it is realized that a plurality of heating wires of the second heating film 12b are electrically connected to the third electrode 133 and the fourth electrode 134, respectively.

[0060] In a specific embodiment, referring to FIG. 9a, each of the electrodes of the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134 includes a coupling portion 135a and a connection portion 135b. The coupling portion 135a is installed at the end of the housing structure 11 and is used to be coupled to the power supply assembly 20 to supply power to the corresponding heating film 12. Specifically, the coupling portion 135a is configured as an arc-shaped structure extending along the circumferential direction of the housing structure 11. The coupling portions 135a of the two electrodes located at the same end of the housing structure 11 are installed at intervals.

[0061] Here, the coupling portion 135a coupled to the power supply assembly 20 is installed at the end of the housing structure 11, and no coupling portion coupled to the power supply assembly 20 is installed in the middle region along the length direction C of the housing structure 11, effectively avoiding the problem of heat transfer to the outside due to the contact between the coupling portion located in the middle region of the housing structure 11 and other metals. Thereby, not only the energy consumption of the heating assembly 10 is reduced, but also the temperature uniformity between the middle region of the housing structure 11 and other adjacent regions is ensured, and the atomization effect of the aerosol generating product 2 corresponding to the middle region of the housing structure 11 is improved.

[0062] The connection portion 135b is electrically connected to the coupling portion 135a and protrudes along the longitudinal direction C of the housing structure 11 in a direction away from the coupled coupling portion 135a, whereby it is electrically connected to one end of each heating wire of the adjacent heating film 12.

[0063] Of course, in other embodiments, referring to FIG. 10, FIG. 10 is a schematic diagram of a plurality of heating films and a power supply assembly after deployment provided by another embodiment. The connection portions 135a of the first electrode 131, the connection portions 135a of the second electrode 132, the connection portions 135a of the third electrode 133, and the connection portions 135a of the fourth electrode 134 may be arranged at the same end of the housing structure 11. For example, the connection portions 135a of the first electrode 131, the connection portions 135a of the second electrode 132, the connection portions 135a of the third electrode 133, and the connection portions 135a of the fourth electrode 134 are all located at the second end b of the housing structure 11. In this embodiment, the connection portions 135b of the first electrode 131 and the connection portions 135b of the second electrode 132 can extend toward the first end a of the housing structure 11 and are electrically connected to one end of each heating wire of the plurality of heating wires of the first heating film 12a. Of course, in this embodiment, both ends of each heating wire of the first heating film 12a extend along the circumferential direction of the housing structure 11, and this application is not limited thereto.

[0064] In other embodiments, referring to FIGS. 11 to 13, FIG. 11 is a perspective view of a heating assembly provided by another embodiment of the present application, FIG. 12 is an exploded schematic view of the heating assembly shown in FIG. 11, and FIG. 13 is a schematic view of a plurality of heating films and a power supply assembly shown in FIG. 11 being deployed along the circumferential direction of a housing structure. Another heating assembly 10 is provided, and the difference between the heating assembly 10 and the heating assembly 10 provided in the first embodiment is as follows. The power supply assembly 13 includes a first electrode 136, a second electrode 137, and a third electrode 138.

[0065] As shown in FIG. 11, the first electrode 136 is installed at the first end a of the housing structure 11 and is electrically connected to the first heating film 12a. Specifically, the first electrode 136 is an arc-shaped structure extending along the circumferential direction of the housing structure 11. The second electrode 137 is installed at the second end b of the housing structure 11 and is electrically connected to the second heating film 12b. Specifically, the second electrode 137 is an arc-shaped structure extending along the circumferential direction of the housing structure 11.

[0066] The third electrode 138 and the first electrode 136 or the second electrode 137 are located at the same end of the housing structure 11 and are electrically connected to the first heating film 12a and the second heating film 12b respectively. As can be understood, one of the first electrode 136 and the third electrode 138 is electrically connected to the positive electrode of the power supply, and the other is electrically connected to the negative electrode of the power supply. Both the first electrode 136 and the second electrode 137 are electrically connected to the positive electrode or the negative electrode of the power supply.

[0067] Combined with FIG. 13, specifically, the third electrode 138 includes a common coupling portion 139a and a common connection portion 139b. The common coupling portion 139a and the first electrode 136 are located at the same end of the housing structure 11, or the common coupling portion 139a and the second electrode 137 are located at the same end of the housing structure 11 and are used for coupling with the power supply assembly 20. Specifically, the common coupling portion 139a can be located at the second end b of the housing structure 11. The common connection portion 139b is electrically connected to the common coupling portion 139a, and the common connection portion 139b extends along the longitudinal direction C of the housing structure 11 in a direction away from the common coupling portion 139a, thereby being electrically connected to the first heating film 12a and the second heating film 12b respectively. Specifically, the common connection portion 139b extends to a position between the first heating film 12a and the second heating film 12b.

[0068] Specifically, in this embodiment, as shown in FIG. 13, the plurality of heating wires of the first heating film 12a and the plurality of heating wires of the second heating film 12b are curves extending along the longitudinal direction C of the housing structure 11 respectively. For example, the first heating wire 121 and the second heating wire 122 in the first heating film 12a, and the first heating wire 121 and the second heating wire 122 in the second heating film 12b are U-shaped curves extending along the longitudinal direction of the housing structure 11 respectively, and the opening direction of each U-shaped structure of the U-shaped curve is perpendicular to the longitudinal direction C of the housing structure 11.

[0069] Specifically, the first heating lines 121 and the second heating lines 122 in the first heating film 12a are symmetrically distributed along the central axis M in the width direction of the first heating film 12a, and / or the first heating lines 121 and the second heating lines 122 in the second heating film 12b are symmetrically distributed along the central axis N in the width direction of the second heating film 12b.

[0070] In a specific embodiment, as shown in FIG. 13, among the plurality of heating lines in the first heating film 12a, the first ends of each heating line are connected to each other and then electrically connected to the first electrode 136. The second ends of each heating line are connected to each other and then electrically connected to one end away from the common connection portion 139a of the common connection portion 139b. For example, the first end of the first heating line 121 of the first heating film 12a is connected to the first end of the second heating line 122 of the first heating film 12a. The second end of the first heating line 121 of the first heating film 12a is connected to the second end of the second heating line 122 of the first heating film 12a.

[0071] Specifically, the first heating film 12a can further include a first connection portion 123. The first connection portion 123 extends along the circumferential direction of the housing structure 11. The first ends of the first heating line 121 and the second heating line 122 of the first heating film 12a are respectively connected to the first connection portion 123 and are electrically connected to the first electrode 136 through a portion of the first connection portion 123 that protrudes toward the first electrode 136.

[0072] Specifically, the first heating film 12a can further include a second connection portion 124. The second connection portion 124 extends along the circumferential direction of the housing structure 11. The second ends of the first heating line 121 and the second heating line 122 of the first heating film 12a are respectively connected to the second connection portion 124 and are electrically connected to one end away from the common connection portion 139a of the common connection portion 139b through a part of the second connection portion 124.

[0073] Similarly, the second heating film 12b can further include a third connection portion 125. The third connection portion 125 extends along the circumferential direction of the housing structure 11. The first ends of the first heating wire 121 and the second heating wire 122 of the second heating film 12b are respectively connected to the third connection portion 125, and are electrically connected to the second electrode 137 through a portion of the third connection portion 125 that protrudes toward the second electrode 137.

[0074] Specifically, the second heating film 12b can further include a fourth connection portion 126. The fourth connection portion 126 extends along the circumferential direction of the housing structure 11. The second ends of the first heating wire 121 and the second heating wire 122 of the second heating film 12b are respectively connected to the fourth connection portion 126, and are electrically connected to one end of the common connection portion 139b that is away from the common coupling portion 139a through a part of the fourth connection portion 126. Here, the fourth connection portion 126 and the second connection portion 124 are adjacently installed along the longitudinal direction C of the housing structure 11.

[0075] In another embodiment, referring to FIG. 14, FIG. 14 is a schematic diagram of a plurality of heating films and a power supply assembly after being unfolded provided in still another embodiment. The first electrode 136 or the second electrode 137 can also include a coupling portion and a connection portion. The coupling portion of the first electrode 136, the coupling portion of the second electrode 137, and the common coupling portion 139a of the third electrode 138 can be located at the same end of the housing structure 11. For example, the coupling portion of the first electrode 136, the coupling portion of the second electrode 137, and the common coupling portion 139a of the third electrode 138 are all located at the second end b of the housing structure 11. In this embodiment, the connection portion of the first electrode 136 extends toward the first end a of the housing structure 11 and can be electrically connected to the first connection portion 123 of the first heating film 12a.

[0076] In the heating assembly 10 provided by the above two embodiments, by installing the housing structure 11 and a plurality of heating films 12, the plurality of heating films 12 are installed at intervals along the longitudinal direction C of the housing structure 11 in the housing structure 11, and each heating film 12 is distributed in a linear shape. When the plurality of heating films 12 are energized, the housing structure 11 is heated, and the housing structure 11 emits infrared rays when heated. Thereby, the aerosol generating product 2 accommodated in the housing structure 11 is heated and atomized by using the infrared rays. Here, in the infrared heating method, since infrared rays have a certain permeability, no medium is required, the heating efficiency is high, the preheating efficiency of the aerosol generating product 2 can be effectively improved, and the temperature difference between the inside and the outside of the aerosol generating product 2 can be effectively reduced. Thereby, the baking of the aerosol generating product 2 is made more uniform, and the problem of burning of the aerosol generating product 2 due to local high temperature is avoided. Further, by installing the power supply assembly 13, the power supply assembly 13 includes at least three electrodes, and each two electrodes form a group, and one of the plurality of heating films 12 is electrically connected, thereby supplying power to the corresponding heating film 12 through the electrode group. As a result, the plurality of heating films 12 arranged at intervals receive the power of the power supply assembly 20 independently by the corresponding electrode groups, and a plurality of heating regions are formed along the longitudinal direction C of the housing structure 11 in the housing structure 11, realizing the divided heating of the heating assembly 10. The heating assembly 10 controls the heating temperature of different heating regions according to the requirements of the actual temperature field, ensuring the continuous discharge of the aerosol and the consistency of the user's taste before and after inhalation, and avoiding the phenomenon that the local temperature is too high or too low.Moreover, by disposing at least three electrodes for coupling with the power supply assembly 20 at the first end portion a and / or the second end portion b of the accommodating structure 11, not only can power be supplied to the plurality of heating films 12 respectively, but also the segmented heating function of the heating assembly 10 can be realized, and there is no need to separately provide an electrode coupled to the power supply in the central region of the accommodating structure 11 along the longitudinal direction, effectively avoiding the problem that the electrode located in the central region of the accommodating structure 11 conducts heat to the outside due to contact with other metals. Thereby, not only the energy consumption of the heating assembly 10 is reduced, but also the temperature consistency between the central region and other adjacent regions of the accommodating structure 11 is ensured, the atomization effect of the aerosol-generating product 2 corresponding to the central region of the accommodating structure 11 is improved, and the user's suction texture and experience are improved.

[0077] In the second embodiment, referring to FIG. 15, FIG. 15 is a cross-sectional view of the heating assembly 10 provided by the second embodiment of the present application. The heating assembly 10 is provided, and the heating assembly 10 of the second embodiment is different from the heating assembly 10 provided in the first embodiment as follows. The radiation layer 112 is installed on the outer surface of the side wall of the substrate 111.

[0078] In this embodiment, as shown in FIG. 15, when the radiation layer 112 is an insulating radiation layer 112, the heating film 12 is specifically installed on the surface of the radiation layer 112 away from the substrate 111. The heat generated after the heating film 12 is energized is directly thermally conducted to the radiation layer 112, the radiation layer 112 is heated to generate infrared rays, and the infrared rays pass through the transparent substrate 111 and enter the accommodation cavity 110 to heat the aerosol-generating product 2 accommodated in the accommodation cavity 110. In this embodiment, the aerosol-generating product 2 may be in direct contact with the transparent substrate 111, thereby directly conducting the heat of the substrate 111 to the aerosol-generating product 2 to heat the aerosol-generating product 2, or the aerosol-generating product 2 is disposed at a distance from the substrate 111.

[0079] When the radiation layer 112 is a non-insulating material, as shown in FIG. 16, which is a cross-sectional view of a heating assembly provided in another specific embodiment of the present application. To avoid a short circuit of the heating film 12, a second insulating layer 114 is further provided on the surface of the radiation layer 112 away from the substrate 111, and the second insulating layer 114 is disposed between the radiation layer 112 and the heating film 12.

[0080] In the third embodiment, referring to FIG. 17, which is a cross-sectional view of a heating assembly provided in the third embodiment of the present application. Yet another heating assembly 10 is provided, and the heating assembly 10 of the third embodiment is different from the heating assembly 10 provided in the above embodiment as follows. The housing structure 11 includes a base body 111, and the heating film 12 is specifically installed on the outer surface of the side wall of the base body 111.

[0081] The base body 111 has a hollow tubular shape, and the base body 111 includes a main body and an infrared radiation material dispersed in the main body. The main body forms a housing cavity 110 and a proximal opening communicating with the housing cavity 110 for housing the aerosol generating product 2. When the base body 111 is heated, it irradiates infrared rays to heat the aerosol generating product 2. As can be understood, in this embodiment, when the base body 111 itself is heated, it emits infrared rays, and no infrared layer is installed on the surface of the base body 111. The base body 111 may specifically be a quartz tube.

[0082] Of course, in order to increase the amount of infrared rays emitted and increase the heating rate, a radiation infrared layer can be further installed on the surface of the base body 111. For details, refer to the above, and the description is omitted here.

[0083] The above is only a part of the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent device or equivalent process conversion performed using the content of the specification and drawings of the present application, or any application directly or indirectly applied to other related technical fields, is similarly included within the patent protection scope of the present application.

Claims

**Claim 1** A heating assembly including a housing structure, a plurality of heating films, and a power supply assembly, wherein the housing structure has a proximal opening through which an aerosol generating product is received and heated, and which is used to heat the aerosol generating product by emitting infrared rays when heated, the plurality of heating films are spaced apart along the longitudinal direction of the housing structure and are used to heat the housing structure when energized, wherein each of the heating films is linearly distributed, the power supply assembly includes at least three electrodes, at least three of the electrodes are respectively coupled to a power supply assembly, and are disposed at a first end and / or a second end of the housing structure, and each two of the electrodes form a group and are electrically connected to one of the heating films to supply power to the corresponding heating film. A heating assembly characterized by this. **Claim 2** The heating assembly according to claim 1, wherein each of the heating films includes at least one heating wire. **Claim 3** The heating assembly according to claim 2, wherein each of the heating films includes at least two heating wires connected in parallel. **Claim 4** The heating assembly according to claim 3, wherein at least a part of at least two of the heating wires are curved. **Claim 5** The heating assembly according to claim 4, wherein the curve is a U-shaped curve or an S-shaped curve. **Claim 6** The plurality of heating films include a first heating film and a second heating film, the power supply assembly includes a first electrode, a second electrode, a third electrode, and a fourth electrode, the first electrode and the second electrode are disposed at a first end of the housing structure and are respectively electrically connected to the first heating film, and the third electrode and the fourth electrode are disposed at a second end of the housing structure and are respectively electrically connected to the second heating film. The heating assembly according to claim 1, characterized by this. **Claim 7** Both ends of the plurality of heating wires of the first heating film are respectively extended to positions close to the first end of the housing structure and are respectively electrically connected to the first electrode and the second electrode, Both ends of the plurality of heating wires of the second heating film are each extended to a position close to the second end of the housing structure and are each electrically connected to the third electrode and the fourth electrode. The heating assembly according to claim 6, characterized in that.

8. Each of the first electrode, the second electrode, the third electrode, and the fourth electrode includes a coupling portion and a connection portion. The coupling portion is installed at an end of the housing structure and is used to couple with a power supply assembly to supply power to the corresponding heating film. The connection portion is electrically connected to the coupling portion and extends in a direction away from the coupling portion along the longitudinal direction of the housing structure and is electrically connected to one end of each heating wire of the adjacent heating film. The heating assembly according to claim 7, characterized in that.

9. The coupling portion is configured as an arc-shaped structure extending along the circumferential direction of the housing structure. The heating assembly according to claim 8, characterized in that.

10. Each heating film includes a first heating wire and a second heating wire installed at intervals. The first heating wire is a curve extending along the circumferential direction of the housing structure, and the peripheral contour of the first heating wire is surrounded by the second heating wire. The heating assembly according to claim 7, characterized in that.

11. The second heating wire includes a first portion, a second portion, and a third portion connected in sequence. Along the circumferential direction of the housing structure, the first portion is located on one side of the first heating wire, the third portion is located on the other side of the first heating wire, the first portion is a curve extending along the circumferential direction of the housing structure, the third portion is a straight line extending along the longitudinal direction of the housing structure. The second portion is located on the side close to the central region of the housing structure of the first heating wire, and the second portion is a straight line extending along the circumferential direction of the housing structure. The heating assembly according to claim 10, characterized in that.

12. Both the first portion and the first heating wire are U-shaped curves, and the dimensions of each U-shaped structure are the same. The heating assembly according to claim 11, characterized in that.

13. The plurality of heating films includes a first heating film and a second heating film. The power supply assembly includes a first electrode, a second electrode, and a third electrode. The first electrode is installed at a first end of the housing structure and is electrically connected to the first heating film. The second electrode is installed at a second end of the housing structure and is electrically connected to the second heating film. The third electrode and the first electrode, or the third electrode and the second electrode are located at the same end of the housing structure and are electrically connected to the first heating film and the second heating film respectively. The heating assembly according to claim 1, characterized in that.

14. The first electrode and / or the second electrode is an arc-shaped structure extending along the circumferential direction of the housing structure. The third electrode includes a common coupling portion and a common connection portion. The common coupling portion and the first electrode, or the common coupling portion and the second electrode are located at the same end of the housing structure and are used for being coupled to a power supply assembly. The common connection portion is electrically connected to the common coupling portion and extends in a direction away from the common coupling portion along the longitudinal direction of the housing structure and is electrically connected to the first heating film and the second heating film respectively. The heating assembly according to claim 13, characterized in that.

15. The plurality of heating wires of the first heating film and the plurality of heating wires of the second heating film are curves extending along the longitudinal direction of the housing structure respectively. The heating assembly according to claim 14, characterized in that.

16. The first heating film further includes a first connection portion and a second connection portion. The first end of each heating wire in the first heating film is connected to the first connection portion respectively, and is electrically connected to the first electrode through a part of the first connection portion. The second end of each heating wire in the first heating film is connected to the second connection portion respectively, and is electrically connected to the third electrode through a part of the second connection portion, and / or The second heating film further includes a third connection portion and a fourth connection portion. The first end of each heating wire in the second heating film is connected to the third connection portion respectively, and is electrically connected to the second electrode through a part of the third connection portion. The second end of each heating wire in the second heating film is connected to the fourth connection portion respectively, and is electrically connected to the third electrode through a part of the fourth connection portion. The heating assembly according to claim 15, characterized in that.

17. The housing structure includes a base body and a radiation layer, The base body has a hollow tubular shape and is used to contain an aerosol generating product. The radiation layer is installed on the inner surface of the side wall of the base body and is used to radiate infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the side away from the radiation layer of the base body. The heating assembly according to claim 1, characterized in that.

18. The housing structure includes a base body and a radiation layer, The base body has a hollow tubular shape and is used to contain an aerosol generating product. The radiation layer is installed on the outer surface of the side wall of the base body and is used to radiate infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the side away from the base body of the radiation layer. The heating assembly according to claim 1, characterized in that.

19. The housing structure includes a base body. The base body has a hollow tubular shape, and the base body includes a main body and an infrared radiation material dispersed in the main body. The base body is used to contain an aerosol generating product and is used to radiate infrared rays to heat the aerosol generating product when heated. Here, the heating film is installed on the outer surface of the side wall of the base body. The heating assembly according to claim 1, characterized in that.

20. The base body is a transparent base body. The heating assembly according to claim 17, characterized in that.

21. An aerosol generating device including a heating assembly and a power supply assembly, The heating assembly is the heating assembly according to any one of claims 1 to 20, The power supply assembly is electrically connected to the heating assembly and is used to supply power to the heating assembly. The aerosol generating device, characterized in that.

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