Heating assembly and aerosol generating apparatus

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, 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. A heat-not-burn aerosol generating device can atomize an aerosol generating product to generate an aerosol by simply heating a special heating assembly to about 350°C, and can significantly reduce harmful substances. Compared with other electronic atomization devices, the heat-not-burn aerosol generating device can control the firing temperature of the aerosol generating product by controlling the temperature of the heating assembly to form an aerosol, and is 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 is raised 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 along the axial direction of the aerosol generating product by dividing it (for example, dividing the aerosol generating product into two sections). Especially when using non-divided control integrated heating for an aerosol generating product with a long length, the local temperature is too high or too low, which affects the taste of the aerosol.

Summary of the Invention

[0005] The heating assembly and aerosol generating apparatus provided in this application aim to solve the problem that conventional heating assemblies cannot control the heating element to divide the aerosol generating product along its axial direction (for example, by dividing the aerosol generating product into two sections) in response to the actual temperature field requirements of the heating element, and that when using undivided, integrated heating, especially for long aerosols, local temperatures can become too high or too low, affecting the taste of the aerosol. [Means for solving the problem]

[0006] To solve the above technical problems, one technical solution employed by this application is as follows: A heating assembly is provided, which comprises a housing structure, a plurality of heating films, and a power supply assembly, wherein the housing structure has a proximal opening, which houses an aerosol-generating product through the proximal opening, and when heated, is used to heat the aerosol-generating product by emitting infrared radiation; the plurality of heating films are spaced apart in the housing structure 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 distributed in a linear manner; and the power supply assembly comprises at least three electrodes, each of which is coupled to a power supply assembly and is located at the first and / or second ends of the housing structure, with two of the electrodes forming a group and being electrically connected to one heating film to supply power to the corresponding heating film.

[0007] Here, each of the heating films 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 portion of the two heating wires is curved.

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

[0011] Here, the plurality of heating films include a first heating film and a second heating film, and 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 the first end of the housing structure and are electrically connected to the first heating film, and the third electrode and the fourth electrode are installed at the second end of the housing structure and are electrically connected to the second heating film.

[0012] Here, both ends of the multiple heating wires of the first heating film are extended to a position close to the first end of the housing structure and are electrically connected to the first electrode and the second electrode, respectively, and both ends of the multiple heating wires of the second heating film are extended to a position 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, second, third, and fourth electrodes includes a coupling portion and a connecting portion, the coupling portion being installed at the end of the housing structure and used to couple with a power supply assembly to supply power to the corresponding heating film, the connecting portion being electrically connected to the coupling portion and extending along the longitudinal direction of the housing structure away from the coupling portion and electrically connected to one end of each heating wire of the adjacent heating film.

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

[0015] Here, each heating film includes a first heating wire and a second heating wire, which are spaced apart, the first heating wire being a curve extending along the circumferential direction of the housing structure, and the second heating wire surrounding 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 connected in order, wherein the first portion is located on one side of the first heating wire along the circumferential direction of the housing structure, 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, and 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 part 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 include 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 electrically connected to the first heating film, the second electrode is installed at the second end of the housing structure and electrically connected to the second heating film, and 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 are arc-shaped structures extending along the circumferential direction of the housing structure, the third electrode includes a public coupling and a public connection, the public coupling and the first electrode, or the public coupling 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 public connection is electrically connected to the public coupling and extends along the longitudinal direction of the housing structure away from the public coupling, and is electrically connected to the first heating film and the second heating film, respectively.

[0020] Here, the multiple heating lines of the first heating film and the multiple heating lines of the second heating film are curves that extend along the longitudinal direction of the housing structure.

[0021] Here, the first heating film further includes a first connecting portion and a second connecting portion, the first end of each heating wire in the first heating film is connected to the first connecting portion and electrically connected to the first electrode via a part of the first connecting portion, the second end of each heating wire in the first heating film is connected to the second connecting portion and electrically connected to the third electrode via a part of the second connecting portion, and / or, the second heating film further includes a third connecting portion and a fourth connecting portion, the first end of each heating wire in the second heating film is connected to the second connecting portion and electrically connected to the second electrode via a part of the third connecting portion, the second end of each heating wire in the second heating film is connected to the third connecting portion and electrically connected to the third electrode via a part of the fourth connecting portion.

[0022] Here, the containment structure includes a substrate and a radiation layer, the substrate being hollow tubular and used to contain an aerosol-generating product, the radiation layer being installed on the inner surface of the side wall of the substrate and used to heat the aerosol-generating product by emitting infrared rays when heated, and here the heating film being installed on the side of the substrate away from the radiation layer.

[0023] Here, 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 emit infrared rays when heated to heat the aerosol generating product. Here, the heating film is installed on the side of the radiation layer away from the base body.

[0024] Here, 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 emit infrared rays when heated to heat the aerosol generating product. 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 to supply power to the heating assembly.

[0027] The beneficial effects of the embodiments of this application differ from those of the prior art. This application provides a heating assembly and an aerosol generating apparatus, wherein the heating assembly comprises a containment structure and a plurality of heating films, wherein the plurality of heating films are installed at intervals along the longitudinal direction of the containment structure, and the heating films are distributed in a linear manner, heating the containment structure when power is applied, thereby heating the containment structure and emitting infrared rays, and the aerosol generating product contained in the containment structure is heated and atomized using these infrared rays. Here, the infrared heating method has a certain permeability, does not require a medium, has 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 outside of the aerosol generating product, thereby making the baking of the aerosol generating product more uniform and avoiding the problem of the aerosol generating product burning caused by localized high temperatures. Furthermore, by installing a power supply assembly, the power supply assembly includes at least three electrodes, each of which consists of two electrodes forming a group, and is electrically connected to a heating film. Power is supplied to the corresponding heating film via the electrode group, and multiple heating films, spaced apart, independently receive power from the power supply assembly via their corresponding electrode groups. This forms multiple heating regions along the longitudinal direction of the housing structure, enabling segmented heating of the heating assembly along the longitudinal direction. Moreover, the heating assembly controls the heating temperature of different heating regions according to the requirements of the actual temperature field, ensuring the continuous release of aerosols and consistency of the user's texture before and after aspiration, and avoiding localized temperatures that are 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 and other adjacent regions of the housing structure, 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] [Figure 1] It is a structural schematic diagram of an aerosol generation system according to an embodiment of the present application. [Figure 2] It is a structural schematic diagram of an aerosol generation device according to an embodiment of the present application. [Figure 3] It is a cross-sectional view of a heating assembly provided by the first embodiment of the present application. [Figure 4] It is a perspective view of a heating assembly according to an embodiment of the present application. [Figure 5a] It is a schematic exploded view of the heating assembly shown in FIG. 4 from the first visual angle. [Figure 5b] It is a schematic exploded view of the heating assembly shown in FIG. 4 from the second visual angle. [Figure 6] It is a cross-sectional view of a heating assembly according to a specific embodiment of the present application. [Figure 7] It is a schematic structural diagram of an aerosol generation product according to an embodiment of the present application being accommodated in a housing structure. [Figure 8] It is a schematic structural diagram of an aerosol generation product according to another embodiment of the present application being accommodated in a housing structure. [Figure 9a] It is a schematic diagram of the plurality of heating films and the power supply assembly shown in FIG. 4 being deployed along the circumferential direction of the housing structure [Figure 9b] Figure 9a shows a schematic diagram of the structure of the first heating film and the first and second electrodes. [Figure 10] This is a schematic diagram of a plurality of heating films and a power supply assembly after deployment according to another embodiment. [Figure 11] This is a perspective view of a heating assembly according to another embodiment of the present application. [Figure 12] Figure 11 is a schematic diagram of the exploded view of the heating assembly shown. [Figure 13] Figure 11 is a schematic diagram showing multiple heating films and power supply assemblies unfolded along the circumferential direction of the housing structure. [Figure 14] This is a schematic diagram of a plurality of unfolded heating films and a power supply assembly according to another embodiment. [Figure 15] This is a cross-sectional view of a heating assembly according to a second embodiment of this application. [Figure 16] This is a cross-sectional view of a heating assembly according to another specific embodiment of this application. [Figure 17] This is a cross-sectional view of a heating assembly according to the third embodiment of this application. [Modes for carrying out the invention]

[0029] The technical solutions of the embodiments of this application will be described clearly and completely below with reference to the drawings of the embodiments of this application. Clearly, the embodiments described are only a part of, and not all, of, the embodiments of this application. All other embodiments that a person skilled in the art can obtain based on the embodiments of this application without requiring inventive work are all within the scope of protection of this application.

[0030] In this application, terms such as “first,” “second,” and “third” are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance or the number of technical features shown. Accordingly, features defined as “first,” “second,” and “third” may explicitly or implicitly include at least one of those features. In the description of this application, “multiple” means at least two, e.g., two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of this application (e.g., up, down, left, right, front, back…) are used to interpret the relative positional relationships, motion, etc., between each part in a particular orientation (e.g., shown in the drawings), and if that particular orientation changes, the directional indications change accordingly. Furthermore, the terms “include,” “have,” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may further include steps or units that are not selectively listed, or may further include other steps or units specific to those processes, methods, products, or apparatus.

[0031] As used herein, “Embodiments” means that certain features, structures, or characteristics described with reference to an embodiment may be included in at least one embodiment of this application. The occurrence of such phrase in different parts of the specification does not necessarily refer to the same embodiment, nor does it represent mutually exclusive, independent, or alternative embodiments. The embodiments described herein can be combined with other embodiments, as will be explicitly and implicitly understood by those skilled in the art.

[0032] The present application will be described in detail below with reference to the drawings and embodiments.

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

[0034] In this embodiment, an aerosol generating system is provided. The aerosol generating system includes an aerosol generating device 1 and an aerosol generating product 2 contained within the aerosol generating device 1. Here, the aerosol generating device 1 is used to heat and atomize the aerosol generating product 2 to form an aerosol for the user to inhale. The aerosol generating device 1 can be specifically used in the technical fields of medicine, beauty, healthcare, and electron atomization. Its specific structure and function can be found in the description of the aerosol generating device 1 provided in the following embodiments. The aerosol generating product 2 may use a solid matrix, which comprises one or more powders, granules, fragments, strips, or flakes of plant leaves such as tobacco, herb leaves, tea leaves, or mint leaves. Alternatively, the solid matrix may contain additional volatile flavor compounds released when the matrix is ​​heated. Of course, the aerosol generating product may also be a liquid matrix or a paste-like matrix such as oil and medicinal liquid with added aromatic components.

[0035] Referring to Figure 2, Figure 2 is a schematic diagram of an aerosol generating apparatus 1 according to one embodiment of this application.

[0036] This embodiment provides an aerosol generating device 1, which includes a heating assembly 10 and a power supply assembly 20. Here, the heating assembly 10 is used to contain and atomize the aerosol generating product 2 when energized to generate an aerosol. The specific structure and function of the heating assembly 10 can refer 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. The power supply assembly 20 may specifically be a lithium-ion battery.

[0037] Referring to Figures 3 and 4, Figure 3 is a cross-sectional view of a heating assembly provided by a first embodiment of the present application, and Figure 4 is a perspective view of a heating assembly provided by an 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 Figure 3, the containment structure 11 includes a base 111 and a radiation layer 112. The base 111 is hollow tubular in shape and has a containment cavity 110 and a proximal and distal openings communicating with the containment cavity 110, with the proximal and distal openings facing each other along the longitudinal direction C of the base 111. Hereinafter, the proximal opening is defined as being located at the first end a of the containment structure 11 and the distal opening as being located at the second end b of the containment structure 11. The containment cavity 110 is used to contain the aerosol-generating product 2. Specifically, the aerosol-generating product 2 is contained within or removed from the containment cavity 110 along the longitudinal direction C of the containment cavity 110 via the proximal opening. Here, the proximal opening is the end adjacent to the suction nozzle of the heating assembly 10. Specifically, the base body 111 may be a hollow tubular structure, and this hollow tubular structure is formed surrounding the housing cavity 110. Specifically, the outer diameter of the base body 111 is uniform along its longitudinal direction C. The shape of the base body 111 may specifically be a hollow cylindrical shape.

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

[0040] The radiating layer 112 is installed on the inner surface of the side wall of the substrate 111 and emits infrared radiation when heated. This infrared radiation is used to heat and atomize the aerosol generating product 2 contained in the containment cavity 110. The above method of heating the aerosol generating product 2 using infrared radiation does not require a medium because infrared radiation has a certain degree of permeability. It has high heating efficiency, effectively improves the preheating efficiency of the aerosol generating product 2, reduces 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 of the aerosol generating product 2 being burnt due to localized high temperatures. At the same time, by installing the radiating layer 112 on the inner surface of the substrate 111, the infrared radiation emitted from the radiating layer 112 can be radiated directly to the aerosol generating product 2 without passing through the substrate 111, resulting in a high utilization rate of infrared radiation.

[0041] Here, the radiating layer 112 can be specifically formed on the entire inner surface of the side wall of the substrate 111 using methods such as silkscreen printing, sputtering, coating, and printing. Specifically, the radiating layer 112 may be an infrared layer, and the material of the infrared layer includes at least one of high infrared emissivity materials such as perovskite, spinel, carbide, silicide, nitride, oxide, and rare earth materials.

[0042] Figures 3 to 5b together show that Figure 5a is a first-view exploded schematic diagram of the heating assembly shown in Figure 4, and Figure 5b is a second-view exploded schematic diagram of the heating assembly shown in Figure 4. Multiple heating films 12 are installed on the side of the substrate 111 away from the radiating layer 112, and are installed at intervals along the longitudinal direction C of the housing structure 11. They are used to generate heat to heat the radiating layer 112 when power is applied, causing the radiating layer 112 to heat up and emit infrared rays. Specifically, the heating films 12 are made of a resistive material that releases Joule heat when power is applied, such as a thick-film printed resistive layer, a thin-film printed resistive layer, or a nano-resistive layer.

[0043] Here, as shown in Figure 3, if the substrate 111 is an insulating substrate 111, a plurality of heating films 12 are specifically placed on the surface of the substrate 111 away from the radiating layer 112, and the heat generated by the heating films 12 is conducted to the radiating layer 112 via the substrate 111, heating the radiating layer 112. In this embodiment, it will be understood that the heating films 12 are placed directly on the surface of the housing structure 11, i.e., the heating films 12 are in direct contact with the surface of the housing structure 11. If the substrate 111 is a non-insulating substrate 111, preferably the substrate 111 is made of a metallic material, for example, stainless steel. As shown in Figure 6, Figure 6 is a cross-sectional view of a heating assembly 10 according to a specific embodiment of this application. A further high-temperature resistant first insulating layer 113 is formed on the surface of the substrate 111 away from the radiating layer 112. The heating films 12 are specifically placed on the surface of the first insulating layer 113 away from the substrate 111, thereby preventing a short circuit between the heating films 12 and the substrate 111. In this case, the heat generated by the heating film 12 is conducted sequentially through the first insulating layer 113 and the substrate 111 to the radiating layer 112, thereby heating the radiating layer 112. In this embodiment, it is understood that the heating film 12 is placed on the housing structure 11 via 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 be a glaze 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, with reference to Figure 7, which is a schematic diagram of the structure in which the aerosol generating product 2 provided by the embodiment of this application is housed in a housing structure 11. When the aerosol generating product 2 is housed in the housing cavity 110, the aerosol generating product 2 is in direct contact with the inner surface of the side wall of the housing structure 11 (e.g., the surface of the radiating layer 112). This allows infrared rays to be radiated into the aerosol generating product 2, heating it, while the housing structure 11 (e.g., the radiating layer 112) can conduct heat from the heating film 12 to the aerosol generating product 2, thereby further heating the aerosol generating product 2 with this heat, improving the heat utilization rate, and accelerating the atomization efficiency and aerosol generation rate.

[0045] Of course, in other embodiments, as shown in Figure 8, Figure 8 is a schematic diagram of a structure in which an aerosol generating product 2 according to another embodiment of this application is housed in a housing structure 11. When the aerosol generating product 2 is housed in a housing cavity 110, the aerosol generating product 2 may be spaced apart from the inner surface of the side wall of the housing structure 11 (e.g., the radiation layer 112) to prevent the aerosol generating product 2 from damaging the radiation layer 112. In this embodiment, it will be understood that the aerosol generating product 2 is heated primarily by infrared radiation. Furthermore, a protective layer may be further coated on the surface of the heating film 12 and / or 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 to 100 μm. Preferably, the thickness of the radiation layer 112 is 20 to 40 μm. In this embodiment, the radiation layer 112 can be formed using a thick-film printing method. The material of the radiant layer 112 may include one or more of the following: black silicon, cordierite, transition metal oxide spinel, rare earth oxide, ion-co-doped perovskite, silicon carbide, zircon, and boron nitride. Of course, the thickness of the radiant layer 112 may be 1 to 10 μm, preferably 1 to 5 μm. In this embodiment, the radiant layer 112 is specifically a thin-film plating film. The material of the radiant layer 112 may be CrC, TiCN, or diamond-like carbon film (DLC).

[0046] Figure 9a, along with Figure 9a, is a schematic diagram of the multiple heating films and power supply assemblies shown in Figure 4, unfolded along the circumferential direction of the housing 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, each heating wire 121 / 122 being linear and extending along the longitudinal direction C (see Figure 13 below) or circumferential direction (see Figure 9a) of the housing structure 11. It can be seen that the length dimension of the linear heating wire 121 is much larger than its width dimension.

[0047] In one specific embodiment, as shown in Figure 9a, at least one of the two heating lines 121, 122 is curved. Specifically, at least two heating lines 121, 122 of each heating film 12 are both curved. The curves may be U-shaped or S-shaped. Of course, in other specific embodiments, each heating line 121, 122 may be any other curved irregular line, for example, a combination of S-shaped and U-shaped curves, and this application is not limited thereto.

[0048] As shown in Figures 4 and 9a, the power supply assembly 13 includes at least three electrodes. Each of the at least three electrodes is coupled to the power supply assembly 20, and each pair of electrodes forms a group, creating an independent power supply group, which is electrically connected to one of the multiple heating films 12, thereby supplying power to the corresponding heating film 12 via the power supply group. The power and heating time of each power supply group are controlled via the electronic control panel of the aerosol generator 1, and the multiple heating films 12, which are spaced apart, can independently receive power from the power supply assembly 20 via their corresponding power supply groups. This allows for the formation of multiple heating regions in the housing structure 11 along its longitudinal direction C, enabling the heating assembly 10 to achieve 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, ensuring continuous aerosol release and consistency of the user's taste before and after inhalation, and avoiding localized temperatures that are too high or too low. Here, each heating film 12 is connected to two corresponding electrodes. Each electrode can be made of a highly conductive metallic material such as silver, gold, copper, or an alloy containing gold, silver, and copper.

[0049] Specifically, as shown in Figure 4, at least three electrodes are installed at the first end a and / or second end b of the housing structure 11. Furthermore, by providing at least three electrodes at the first end a and / or second end b of the housing structure 11 for coupling with the power supply assembly 20, power can be supplied to each of the multiple heating films 12, enabling the segmented heating function of the heating assembly 10. Moreover, there is no need 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. This effectively avoids the problem of heat conduction to the outside due to contact between electrodes located in the central region of the housing structure 11 and other metals, thereby reducing the energy consumption of the heating assembly 10. It also ensures temperature consistency between the central region and other neighboring regions of the housing structure 11, improving the atomization effect of the aerosol generating product 2 corresponding to the central region of the housing structure 11, and enhancing the user's inhalation texture and experience.

[0050] In one embodiment, as shown in Figures 4 to 9a together, there are two heating films 12, which are a first heating film 12a and a second heating film 12b. The first heating film 12a and the second heating film 12b are spaced apart along the longitudinal direction C of the housing structure 11, and the first heating film 12a is positioned near the first end a of the housing structure 11. The second heating film 12b is positioned near the second end b of the housing structure 11. Specifically, the first heating film 12a and the second heating film 12b are positioned on both sides of the central cross section of the housing structure 11 and are distributed symmetrically along the central cross section. Here, the central cross section of the housing structure 11 refers to one cross section of the housing structure 11, and this cross section passes through the midpoint of the housing structure 11 along the longitudinal direction C of the housing structure 11.

[0051] Specifically, as shown in Figure 9a, the first heating film 12a and / or the second heating film 12b include two heating lines that are spaced apart. The following description will use the case where the first heating film 12a includes two heating lines, the first heating line 121 and the second heating line 122, that are spaced apart as an example. The first heating line 121 is a U-shaped curve that extends 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 line 122 has a gate structure and surrounds the peripheral contour of the first heating line 121.

[0052] Specifically, referring to Figure 9b, which is a schematic diagram of the structure of the first heating film, first electrode, and second electrode in Figure 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 along the longitudinal direction C of the housing structure 11 toward the first end a of the housing structure 11 and exhibits a linear shape.

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

[0055] The second portion 122b of the second heating element 122 is located on the side of the first heating element 121 closer to the central region of the housing structure 11, and the second portion 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 spaced apart, and its specific structure is the same as that of the first heating film 12a. Those skilled in the art will understand that the third portion 122c of the second heating wire 122 of the second heating film 12b extends toward the second end b of the housing structure 11.

[0057] Referring to Figure 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. 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 are extended to a position close to the first end a of the housing structure 11, thereby electrically connecting 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 are also extended to a position close to the first end a of the housing structure 11, thereby electrically connecting to the first electrode 131 and the second electrode 132, respectively. This ensures that multiple 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 a position close to the second end b of the housing structure 11, thereby electrically connecting them 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 a position close to the second end b of the housing structure 11, thereby electrically connecting them to the third electrode 133 and the fourth electrode 134, respectively. This ensures that multiple 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, as shown in Figure 9a, each of the electrodes, the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134, includes a coupling portion 135a and a connecting portion 135b. The coupling portion 135a is installed at the end of the housing structure 11 and is used to supply power to the corresponding heating film 12 by being coupled to the power supply assembly 20. 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 two electrodes located at the same end of the housing structure 11 are spaced apart.

[0061] Here, the coupling portion 135a connected to the power supply assembly 20 is installed at the end of the housing structure 11, and no coupling portion connected to the power supply assembly 20 is installed in the intermediate region along the longitudinal direction C of the housing structure 11. This effectively avoids the problem of heat transfer to the outside due to contact between the coupling portion located in the intermediate region of the housing structure 11 and other metals, thereby reducing the energy consumption of the heating assembly 10, as well as ensuring temperature uniformity between the intermediate region of the housing structure 11 and other nearby regions, and improving the atomization effect of the aerosol generating product 2 corresponding to the intermediate region of the housing structure 11.

[0062] The connecting portion 135b is electrically connected to the coupling portion 135a and protrudes along the longitudinal direction C of the housing structure 11 toward the coupling portion 135a to which it is connected, thereby electrically connecting to one end of each heating wire of the adjacent heating film 12.

[0063] Of course, in other embodiments, with reference to Figure 10, which is a schematic diagram of a plurality of heating films and power supply assemblies after deployment provided in another embodiment. The coupling portion 135a of the first electrode 131, the coupling portion 135a of the second electrode 132, the coupling portion 135a of the third electrode 133, and the coupling portion 135a of the fourth electrode 134 may be located at the same end of the housing structure 11. For example, the coupling portion 135a of the first electrode 131, the coupling portion 135a of the second electrode 132, the coupling portion 135a of the third electrode 133, and the coupling portion 135a of the fourth electrode 134 are all located at the second end b of the housing structure 11. In this embodiment, the coupling portion 135b of the first electrode 131 and the coupling portion 135b of the second electrode 132 can extend toward the first end a of the housing structure 11 and be electrically connected to one end of each 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 are extended along the circumferential direction of the housing structure 11, and this application is not limited thereto.

[0064] In other embodiments, with reference to Figures 11 to 13, Figure 11 is a perspective view of a heating assembly provided in another embodiment of the present application, Figure 12 is an exploded schematic view of the heating assembly shown in Figure 11, and Figure 13 is a schematic view of the plurality of heating films and power supply assemblies shown in Figure 11 unfolded along the circumferential direction of the housing structure. Another heating assembly 10 is provided, which differs from the heating assembly 10 provided in the first embodiment 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 Figure 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 that extends 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 that extends 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. To understand this, one of the first electrode 136 and the third electrode 138 is electrically connected to the positive terminal of the power supply, and the other is electrically connected to the negative terminal of the power supply. Both the first electrode 136 and the second electrode 137 are electrically connected to either the positive or negative terminal of the power supply.

[0067] Referring to Figure 13, the third electrode 138 specifically includes a public coupling portion 139a and a public connection portion 139b. The public coupling portion 139a and the first electrode 136 are located at the same end of the housing structure 11, or the public coupling portion 139a and the second electrode 137 are located at the same end of the housing structure 11 and are used to couple with the power supply assembly 20. Specifically, the common coupling portion 139a may be located at the second end b of the housing structure 11. The public connection portion 139b is electrically connected to the public coupling portion 139a and extends along the longitudinal direction C of the housing structure 11 away from the public coupling portion 139a, thereby electrically connecting to the first heating film 12a and the second heating film 12b, respectively. Specifically, the public 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 Figure 13, the multiple heating lines of the first heating film 12a and the multiple heating lines of the second heating film 12b are curves that extend along the longitudinal direction C of the housing structure 11. For example, the first heating line 121 and the second heating line 122 in the first heating film 12a, and the first heating line 121 and the second heating line 122 in the second heating film 12b are U-shaped curves that extend along the longitudinal direction of the housing structure 11, 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 distributed symmetrically 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 distributed symmetrically along the central axis N in the width direction of the second heating film 12b.

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

[0071] Specifically, the first heating film 12a may further include a first connecting portion 123 which extends along the circumferential direction of the housing structure 11, and the first end of the first heating wire 121 and the first end of the second heating wire 122 of the first heating film 12a are connected to the first connecting portion 123, respectively, and are electrically connected to the first electrode 136 via a portion of the first connecting portion 123 that protrudes toward the first electrode 136.

[0072] Specifically, the first heating film 12a may further include a second connecting portion 124 which extends along the circumferential direction of the housing structure 11, and the second end of the first heating wire 121 and the second end of the second heating wire 122 of the first heating film 12a are connected to the second connecting portion 124, respectively, and are electrically connected to one end of the public connection portion 139b away from the common connection portion 139a via a portion of the second connecting portion 124.

[0073] Similarly, the second heating film 12b may further include a third connecting portion 125 which extends along the circumferential direction of the housing structure 11, and the first end of the first heating wire 121 and the first end of the second heating wire 122 of the second heating film 12b are connected to the third connecting portion 125, respectively, and are electrically connected to the second electrode 137 via portions of the third connecting portion 125 that protrude toward the second electrode 137.

[0074] Specifically, the second heating film 12b may further include a fourth connecting portion 126 which extends along the circumferential direction of the housing structure 11, and the second ends of the first heating wire 121 and the second heating wire 122 of the second heating film 12b are connected to the fourth connecting portion 126, respectively, and are electrically connected to one end of the public connecting portion 139b away from the common connection portion 139a via a portion of the fourth connecting portion 126. Here, the fourth connecting portion 126 and the second connecting portion 124 are installed adjacent to each other along the longitudinal direction C of the housing structure 11.

[0075] In another embodiment, referring to Figure 14, which is a schematic diagram of a plurality of heating films and power supply assemblies after deployment provided in yet another embodiment. The first electrode 136 or the second electrode 137 may also include couplings and connectors. The coupling of the first electrode 136, the coupling of the second electrode 137, and the public coupling 139a of the third electrode 138 may be located at the same end of the housing structure 11. For example, the coupling of the first electrode 136, the coupling of the second electrode 137, and the public coupling 139a of the third electrode 138 are all located at the second end b of the housing structure 11. In this embodiment, the connector of the first electrode 136 extends toward the first end a of the housing structure 11 and can be electrically connected to the first connector 123 of the first heating film 12a.

[0076] The heating assembly 10 provided in the two embodiments described above includes a containment 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 containment structure 11, and each heating film 12 is distributed in a linear pattern. When power is applied, the containment structure 11 is heated by the plurality of heating films 12, and the containment structure 11 is heated and emits infrared rays. These infrared rays are then used to heat and atomize the aerosol generating product 2 contained within the containment structure 11. Here, because infrared heating has a certain degree of permeability, it does not require a medium, has high heating efficiency, can effectively improve the preheating efficiency of the aerosol generating product 2, and can effectively reduce the temperature difference between the inside and outside of the aerosol generating product 2. This makes the baking of the aerosol generating product 2 more uniform and avoids the problem of the aerosol generating product 2 burning due to localized high temperatures. Furthermore, by installing the power supply assembly 13, the power supply assembly 13 includes at least three electrodes, each of two electrodes forming a group, and is electrically connected to one of the multiple heating films 12, thereby supplying power to the corresponding heating film 12 via the electrode group. As a result, multiple spaced heating films 12 independently receive power from the power supply assembly 20 by their corresponding electrode groups, and multiple heating regions are formed in the housing structure 11 along the longitudinal direction C of the housing structure 11, realizing segmented heating of the heating assembly 10. The heating assembly 10 can control the heating temperature of different heating regions according to the requirements of the actual temperature field, ensuring continuous aerosol release and consistency of taste for the user before and after inhalation, and avoiding localized temperatures that are too high or too low.Furthermore, by positioning at least three electrodes for coupling with the power supply assembly 20 at the first end a and / or second end b of the housing structure 11, power can be supplied to each of the multiple heating films 12, and the segmented heating function of the heating assembly 10 can be realized. This eliminates the need to separately provide electrodes coupled to the power supply in the central region of the housing structure 11 along the longitudinal direction, effectively avoiding the problem of heat being conducted to the outside by contact with other metals if the electrodes located in the central region of the housing structure 11 come into contact with other metals. This not only reduces the energy consumption of the heating assembly 10, but also ensures temperature consistency between the central region of the housing structure 11 and other nearby regions, improving the atomization effect of the aerosol generating product 2 corresponding to the central region of the housing structure 11, and enhancing the user's inhalation texture and experience.

[0077] In the second embodiment, with reference to Figure 15, which is a cross-sectional view of the heating assembly 10 provided in the second embodiment of this application, the heating assembly 10 of the second embodiment is provided, and differs from the heating assembly 10 provided in the first embodiment as follows: The radiating layer 112 is installed on the outer surface of the side wall of the substrate 111.

[0078] In this embodiment, as shown in Figure 15, when the radiating layer 112 is an insulating radiating layer 112, the heating film 12 is specifically placed on the surface of the radiating layer 112 that is away from the substrate 111. The heat generated after the heating film 12 is energized is directly conducted to the radiating layer 112, which is heated and generates infrared rays. These infrared rays pass through the transparent substrate 111 and enter the containment cavity 110, heating the aerosol generating product 2 contained within the containment cavity 110. In this embodiment, the aerosol generating product 2 may be in direct contact with the transparent substrate 111, thereby directly conducting heat from the substrate 111 to the aerosol generating product 2 and heating it, or the aerosol generating product 2 may be positioned at a distance from the substrate 111.

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

[0080] In a third embodiment, with reference to Figure 17, which is a cross-sectional view of a heating assembly provided in a third embodiment of the present application. Yet another heating assembly 10 is provided, which differs from the heating assembly 10 provided in the above embodiments in the following ways: The housing structure 11 includes a base 111, and the heating film 12 is specifically placed on the outer surface of the side wall of the base 111.

[0081] The substrate 111 is hollow and tubular, and comprises a body and infrared emitting material dispersed within the body. The body forms a containment cavity 110 and a proximal opening communicating with the containment cavity 110 for containing the aerosol-generating product 2. When heated, the substrate 111 irradiates infrared radiation to heat the aerosol-generating product 2. As can be understood, in this embodiment, the substrate 111 itself emits infrared radiation when heated, and no infrared layer is formed on the surface of the substrate 111. The substrate 111 may specifically be a quartz tube.

[0082] Of course, an additional infrared radiation layer can be added to the surface of the substrate 111 to increase the amount of infrared radiation emitted and thus increase the heating rate. See above for details; a detailed explanation is omitted here.

[0083] The above describes only a portion of the embodiments of this application and does not limit the scope of the patent. Equivalent devices or equivalent process transformations, or other related technical applications, that are directly or indirectly applied using the contents of the specification and drawings of this application are all similarly included within the scope of the patent protection of this application.

Claims

1. A heating assembly comprising a housing structure, a plurality of heating films, and a power supply assembly, The containment structure has a proximal opening, and is used to contain an aerosol-generating product through the proximal opening and to heat the aerosol-generating product by emitting infrared radiation when heated. Multiple heating films are installed at intervals along the longitudinal direction of the housing structure on both sides of the central cross-section of the housing structure and are used to heat the housing structure when energized, and each heating film is distributed in a linear manner. The heating assembly is characterized in that the power supply assembly includes at least three electrodes, each of which is coupled to a power supply assembly and positioned at the first and / or second ends of the housing structure, two of the electrodes are electrically connected to one of the heating films as an electrode group to supply power to the corresponding heating films, and the multiple heating films independently receive power from the power supply assembly by the corresponding electrode groups, thereby achieving segmented heating of the heating assembly.

2. The heating assembly according to claim 1, characterized in that each of the heating films includes at least one heating wire.

3. The heating assembly according to claim 2, characterized in that each of the heating films includes at least two heating wires connected in parallel.

4. The heating assembly according to claim 3, characterized in that at least a portion of the two heating wires is curved.

5. The heating assembly according to claim 4, characterized in that the curve is a U-shaped curve or an S-shaped curve.

6. The plurality of heating films include a first heating film and a second heating film. The heating assembly according to claim 1, wherein 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 being installed at the first end of the housing structure and each electrically connected to the first heating film, and the third electrode and the fourth electrode being installed at the second end of the housing structure and each electrically connected to the second heating film.

7. Both ends of the plurality of heating wires of the first heating film are extended to a position close to the first end of the housing structure and are electrically connected to the first electrode and the second electrode, respectively. The heating assembly according to claim 6, characterized in that both ends of the plurality of heating wires of the second heating film are extended to a position close to the second end of the housing structure and are electrically connected to the third electrode and the fourth electrode, respectively.

8. Each of the first electrode, second electrode, third electrode, and fourth electrode includes a coupling portion and a connecting portion. The heating assembly according to claim 7, wherein the coupling portion is installed at the 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 along the longitudinal direction of the housing structure toward away from the coupling portion and is electrically connected to one end of each heating wire of the adjacent heating film.

9. The heating assembly according to claim 8, characterized in that the connecting portion is configured as an arc-shaped structure that extends circumferentially along the outer surface of the housing structure, along the cross-section of the housing structure.

10. The heating assembly according to claim 7, wherein 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.

11. The second heating element includes a first part, a second part, and a third part connected in order, wherein the first part is located on one side of the first heating element along the circumferential direction of the housing structure, the third part is located on the other side of the first heating element, the first part is a curve extending along the circumferential direction of the housing structure, and the third part is a straight line extending along the longitudinal direction of the housing structure. The heating assembly according to claim 10, characterized in that the second portion is located on the side of the housing structure that approaches the central region of the first heating wire, and the second portion is an arc-shaped structure that extends circumferentially along the cross-section of the housing structure and on the outer surface of the housing structure.

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

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

14. The first electrode and / or the second electrode are arc-shaped structures that extend circumferentially along the cross-section of the housing structure and along the outer surface of the housing structure. The heating assembly according to claim 13, wherein the third electrode includes a public coupling portion and a public connection portion, the public coupling portion and the first electrode, or the public coupling portion and the second electrode are located at the same end of the housing structure and are used to be coupled to the power supply assembly, the public connection portion is electrically connected to the public coupling portion and extends along the longitudinal direction of the housing structure toward away from the public coupling portion, and is electrically connected to the first heating film and the second heating film, respectively.

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

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

17. The aforementioned containment structure includes a substrate and a radiation layer, The aforementioned substrate has a hollow tubular shape and is used to contain aerosol-generating products. The heating assembly according to claim 1, wherein the radiating layer is installed on the inner surface of the side wall of the substrate and, when heated, emits infrared rays to heat the aerosol generating product, and the heating film is installed on the side of the substrate away from the radiating layer.

18. The aforementioned containment structure includes a substrate and a radiation layer. The aforementioned substrate has a hollow tubular shape and is used to contain aerosol-generating products. The heating assembly according to claim 1, wherein the radiating layer is installed on the outer surface of the side wall of the substrate and, when heated, emits infrared rays to heat the aerosol generating product, and the heating film is installed on the side of the radiating layer away from the substrate.

19. The heating assembly according to claim 1, wherein the housing structure includes a substrate, the substrate is hollow and tubular in shape, and the substrate includes a main body and an infrared radiating material dispersed within the main body, the substrate is used to house an aerosol generating product, and when heated, emits infrared rays to heat the aerosol generating product, wherein the heating film is installed on the outer surface of the side wall of the substrate.

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

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

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