Heating assembly and aerosol-generating device

Abstract

The disclosure provides a heating assembly and an aerosol generating device. The heating assembly comprises a receiving structure, a plurality of heating films and a power supply assembly; the receiving structure has a proximal opening for receiving an aerosol generating article through the proximal opening and radiating infrared rays to heat the aerosol generating article when heated; the plurality of heating films are arranged on the receiving structure along the length direction of the receiving structure and are used to heat the receiving structure when powered on; each heating film is linearly distributed; the power supply assembly comprises at least three electrodes; the at least three electrodes are respectively used to be connected with a power supply assembly and are arranged at a first end and / or a second end of the receiving structure; and each two electrodes are a group and are electrically connected with a heating film to supply power to the corresponding heating film. The heating assembly can realize segmented heating, ensure the continuous release of aerosol and the smoking taste, and avoid the phenomenon of local temperature being too high or too low; at the same time, the energy consumption of the heating assembly is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization, in particular to a heating assembly and an aerosol generating device. BACKGROUND

[0002] Since traditional aerosol generating articles produce a large amount of harmful substances during combustion, a heat-not-burn aerosol generating device only needs to heat a specially designed heating assembly to about 350 DEG C to atomize the aerosol generating article to generate aerosol, and the harmful substances are greatly reduced. Compared with other electronic atomization devices, the heat-not-burn aerosol generating device controls the temperature of the heating assembly to control the baking temperature of the aerosol generating article to form aerosol, which is more popular with consumers.

[0003] The form of the heating assembly can be divided into two types: a central heating assembly inserted into the aerosol generating article, and a peripheral heating assembly wrapped around the aerosol generating article. At present, whether central heating or peripheral heating usually adopts the mode of raising the heating element as a whole to a certain temperature to heat the aerosol generating article along the axial length direction of the aerosol generating article. The problem brought by this is that the heating body cannot control the aerosol generating article along the axial direction respectively, for example, control in two sections, according to the actual temperature field demand of the heating body. Especially for the aerosol generating article with a longer length, if the non-segmented control integrated heating is adopted, it is easy to appear the phenomenon of local temperature being too high or too low, which affects the taste of aerosol. SUMMARY

[0004] The heating assembly and the aerosol generating device provided by the present disclosure aim to solve the problem that the existing heating assembly cannot control the aerosol generating article along the axial direction respectively, for example, control in two sections, according to the actual temperature field demand of the heating body. Especially for the aerosol generating article with a longer length, if the non-segmented control integrated heating is adopted, it is easy to appear the phenomenon of local temperature being too high or too low, which affects the taste of aerosol.

[0005] To solve the above technical problems, one technical solution adopted by the present disclosure is to provide a heating assembly. The heating assembly comprises a receiving structure, a plurality of heating films and a power supply assembly. The receiving structure has a proximal end opening for receiving an aerosol generating article through the proximal end opening and radiating infrared rays to heat the aerosol generating article when heated. The plurality of heating films are arranged on the receiving structure along the length direction of the receiving structure and are used to heat the receiving structure when powered on. Each heating film is in a linear distribution. The power supply assembly comprises at least three electrodes. The at least three electrodes are respectively connected with a power supply assembly and are arranged at the first end and / or the second end of the receiving structure. Each two electrodes are electrically connected with one heating film to supply power to the corresponding heating film.

[0006] Each of the heating films comprises at least one heating line.

[0007] Each of the heating films comprises at least two heating lines in parallel.

[0008] At least part of the at least two heating lines is a curve.

[0009] The curve is a U-shaped curve or an S-shaped curve.

[0010] The plurality of heating films comprises a first heating film and a second heating film.

[0011] The power supply assembly comprises a first electrode, a second electrode, a third electrode, and a fourth electrode; the first electrode and the second electrode are arranged at a first end of the receiving structure and are respectively electrically connected to the first heating film; the third electrode and the fourth electrode are arranged at a second end of the receiving structure and are respectively electrically connected to the second heating film.

[0012] The two ends of the plurality of heating lines of the first heating film respectively extend to positions close to the first end of the receiving structure to be respectively electrically connected to the first electrode and the second electrode.

[0013] The two ends of the plurality of heating lines of the second heating film respectively extend to positions close to the second end of the receiving structure to be respectively electrically connected to the third electrode and the fourth electrode.

[0014] Each of the first electrode, the second electrode, the third electrode, and the fourth electrode comprises a coupling portion and a connecting portion.

[0015] The coupling portion is arranged at an end of the receiving structure and is used to be coupled to a power supply assembly to supply power to the corresponding heating film; the connecting portion is electrically connected to the coupling portion and extends along the length direction of the receiving structure in a direction away from the coupling portion to be electrically connected to one end of each of the heating lines in the adjacent heating film.

[0016] The coupling portion is configured as an arc-shaped structure extending along the circumferential direction of the receiving structure.

[0017] Each of the heating films comprises a first heating line and a second heating line arranged at intervals; the first heating line is a curve extending along the circumferential direction of the receiving structure; and the second heating line surrounds the peripheral contour of the first heating line.

[0018] The second heating wire comprises a first part, a second part and a third part connected in sequence; the first part is located on one side of the first heating wire along the circumferential direction of the accommodating structure, and the third part is located on the other side of the first heating wire; the first part is a curve extending along the circumferential direction of the accommodating structure; and the third part is a straight line extending along the length direction of the accommodating structure.

[0019] The second part is located on the side of the first heating wire close to the central area of the accommodating structure, and the second part is a straight line extending along the circumferential direction of the accommodating structure.

[0020] The first part and the first heating wire are both U-shaped curves, and the size of each U-shaped structure is the same.

[0021] The plurality of heating films comprises a first heating film and a second heating film.

[0022] The power supply assembly comprises a first electrode, a second electrode and a third electrode; the first electrode is arranged at the first end of the accommodating structure and electrically connected with the first heating film; the second electrode is arranged at the second end of the accommodating structure and electrically connected with the second heating film; and the third electrode is located at the same end of the accommodating structure as the first electrode or the second electrode and is electrically connected with the first heating film and the second heating film respectively.

[0023] The first electrode and / or the second electrode is an arc-shaped structure extending along the circumferential direction of the accommodating structure.

[0024] The third electrode comprises a common connection part and a common connecting part; the common connection part is located at the same end of the accommodating structure as the first electrode or the second electrode and is used for connecting with the power supply assembly; and the common connecting part is electrically connected with the common connection part and extends along the length direction of the accommodating structure away from the common connection part to be electrically connected with the first heating film and the second heating film respectively.

[0025] The plurality of heating lines of the first heating film and the plurality of heating lines of the second heating film are curves extending along the length direction of the accommodating structure respectively.

[0026] The first heating film further comprises a first connecting part and a second connecting part; the first end of each heating line in the first heating film is connected with the first connecting part respectively to be electrically connected with the first electrode through the part of the first connecting part; the second end of each heating line in the first heating film is connected with the second connecting part respectively to be electrically connected with the third electrode through the part of the second connecting part; and / or,

[0027] The second heating film further comprises 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 respectively, so as to be electrically connected to the third electrode through the part of the third connecting portion; the second end of each heating wire in the second heating film is connected to the fourth connecting portion respectively, so as to be electrically connected to the fourth electrode through the part of the fourth connecting portion.

[0028] The accommodation structure comprises:

[0029] The base body is in a hollow tubular shape and is used for accommodating the aerosol generating article;

[0030] The radiation layer is arranged on the inner surface of the side wall of the base body and is used for radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the side of the base body away from the radiation layer.

[0031] The accommodation structure comprises:

[0032] The base body is in a hollow tubular shape and is used for accommodating the aerosol generating article;

[0033] The radiation layer is arranged on the outer surface of the side wall of the base body and is used for radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the side of the radiation layer away from the base body.

[0034] The accommodation structure comprises:

[0035] The base body is in a hollow tubular shape and comprises a main body and an infrared radiation material dispersed in the main body; the base body is used for accommodating an aerosol generating substrate and radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the outer surface of the side wall of the base body.

[0036] The base body is a transparent base body.

[0037] To solve the above technical problems, another technical solution adopted by the present disclosure is to provide an aerosol generating device. The aerosol generating device comprises a heating assembly and a power supply assembly; wherein the heating assembly is the heating assembly described above; the power supply assembly is electrically connected to the heating assembly and is used for supplying power to the heating assembly.

[0038] The beneficial effects of the embodiments of the present disclosure are as follows: the heating assembly and the aerosol generating device provided by the present disclosure, by arranging the accommodation structure and the plurality of heating films, the plurality of heating films are arranged on the accommodation structure along the length direction of the accommodation structure, and each heating film is distributed in a linear shape, so that the plurality of heating films heat the accommodation structure when powered on, so that the accommodation structure is heated to radiate infrared rays, and the aerosol generating article accommodated in the accommodation structure is heated and atomized by the infrared rays. Among them, the heating method by infrared rays has certain penetration, does not need medium, and has high heating efficiency, which can effectively improve the preheating efficiency of the aerosol generating article, and can effectively reduce the temperature difference between the inside and outside of the aerosol generating article, so that the baking of the aerosol generating article is more uniform, and the problem of local high temperature causing the aerosol generating article to be burned is avoided. In addition, by arranging the power supply assembly, the power supply assembly includes at least three electrodes, and each two electrodes are a group and are electrically connected with a heating film, so that the corresponding heating film is powered by the electrode group, so that the plurality of heating films arranged at intervals can independently receive the electric power of the power supply assembly through the corresponding electrode group, to form a plurality of heating areas on the accommodation structure along the length direction of the accommodation structure, to realize the segmented heating of the heating assembly along the length direction, and then the heating temperature of different heating areas of the heating assembly can be controlled according to the actual temperature field demand, to ensure the continuous release of the aerosol and the consistency of the taste before and after the user smokes, and to avoid the phenomenon of local high or low temperature. In addition, by arranging the at least three electrodes used for coupling with the power supply assembly at the first end and / or the second end of the accommodation structure, the plurality of heating films can be powered respectively, the segmented heating function of the heating assembly is realized, and no electrode for coupling with the power supply is arranged in the middle region of the accommodation structure along the length direction, which effectively avoids the problem that the electrode in the middle region of the accommodation 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 consistency of the temperature of the middle region of the accommodation structure and the nearby other regions, improving the atomization effect of the aerosol generating article corresponding to the middle region of the accommodation structure, and enhancing the smoking taste and experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structural schematic diagram of an aerosol generating system provided by an embodiment of the present disclosure;

[0040] Figure 2 is a structural schematic diagram of an aerosol generating device provided by an embodiment of the present disclosure;

[0041] Figure 3 is a transverse sectional view of a heating assembly provided by a first embodiment of the present disclosure;

[0042] Figure 4 is a perspective view of a heating assembly provided by an embodiment of the present disclosure;

[0043] Figure 5a As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 4 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0044] Figure 5b As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 4 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0045] Figure 6 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0046] Figure 7 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0047] Figure 8 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0048] Figure 9a As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 4 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0049] Figure 9b As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 9a As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0050] Figure 10 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0051] Figure 11 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0052] Figure 12 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 11 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0053] Figure 13 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20. Figure 11 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0054] Figure 14 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0055] Figure 15 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0056] Figure 16 As shown in FIG. 1, the heating assembly comprises a plurality of heating films 10 and a power supply assembly 20.

[0057] Figure 17 A transverse sectional view of a heating assembly provided for a third embodiment of the present disclosure.

[0058] Legend of signs:

[0059] Aerosol generating device 1; aerosol generating article 2; heating assembly 10; power supply assembly 20; housing structure 11; base 111; housing cavity 110; first end a; second end b; radiation layer 112; first insulation layer 113; second insulation layer 114; heating film 12; first heating film 12a; second heating film 12b; first heating wire 121; second heating wire 122; first connecting part 123; second connecting part 124; third connecting part 125; fourth connecting part 126; power supply assembly 13; first electrode 131 / 136; second electrode 132 / 137; third electrode 133 / 138; fourth electrode 134; coupling part 135a; connecting part 135b; common coupling part 139a; common connecting part 139b. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present disclosure.

[0061] The terms "first", "second", "third" in the present disclosure are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present disclosure are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0062] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated in a combination of embodiments.

[0063] The disclosure will be described in detail in the following with reference to the drawings and embodiments.

[0064] Reference is made to Figure 1 , Figure 1 The schematic diagram of the aerosol generating system provided for an embodiment of the disclosure is shown in FIG. 1.

[0065] In the embodiment, an aerosol generating system is provided, which includes an aerosol generating device 1 and an aerosol generating article 2 received in the aerosol generating device 1. The aerosol generating device 1 is configured to heat and atomize the aerosol generating article 2 to form an aerosol for a user to inhale. The aerosol generating device 1 can be used in the technical fields of medicine, beauty, health care, electronic atomization, etc. The specific structure and function of the aerosol generating device 1 can be understood with reference to the description of the aerosol generating device 1 provided in the following embodiments. The aerosol generating article 2 can be a solid substrate, which can include one or more of powders, granules, fragments, fine strips, strips, or sheets of one or more of tobacco, vanilla leaves, tea leaves, mint leaves, etc. Alternatively, the solid substrate can contain additional volatile flavor compounds to be released when the substrate is heated. Of course, the aerosol generating article 2 can also be a liquid substrate or a paste-like substrate, such as an oil containing a fragrance component, a medicinal liquid, etc.

[0066] Reference is made to Figure 2 , Figure 2 The schematic diagram of the aerosol generating device 1 provided for an embodiment of the disclosure is shown in FIG. 1.

[0067] In the embodiment, an aerosol generating device 1 is provided, which includes a heating assembly 10 and a power supply assembly 20. The heating assembly 10 is configured to receive and atomize an aerosol generating article 2 to generate an aerosol when powered on. The specific structure and function of the heating assembly 10 can be understood with reference to the heating assembly 10 involved in any of the following embodiments. The power supply assembly 20 is electrically connected to the heating assembly 10 and configured to supply power to the heating assembly 10. The power supply assembly 20 can be a lithium ion battery.

[0068] Reference is made to Figure 3 and Figure 4 , Figure 3 The transverse sectional view of the heating assembly provided for the first embodiment of the disclosure is shown in FIG. 2. Figure 4This is a perspective view of a heating assembly provided according to an embodiment of the present disclosure; 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.

[0069] like Figure 3 As shown, the housing structure 11 includes a substrate 111 and a radiation layer 112. The substrate 111 is a hollow tubular structure and 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 arranged opposite each other along the length direction C of the substrate 111. Hereinafter, 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 article 2. Specifically, the aerosol generating article 2 is housed in or removed from the housing cavity 110 through the proximal opening along the length direction C of the housing cavity 110. The proximal opening is the end of the heating assembly 10 near the nozzle. Specifically, the substrate 111 may be a hollow tubular structure that surrounds and forms the housing cavity 110. Specifically, the outer diameter of the substrate 111 is uniform along its length direction C; the substrate 111 may specifically be a hollow cylinder.

[0070] Specifically, the substrate 111 can be made of an insulating material, such as a quartz tube, ceramic tube, or mica tube. Preferably, the substrate 111 can be a transparent quartz tube to allow infrared light to pass through. Of course, the substrate 111 can also be made of a non-insulating material, such as stainless steel or aluminum.

[0071] A radiation layer 112 is disposed on the inner surface of the sidewall of the substrate 111 and is used to radiate infrared rays when heated, thereby heating and atomizing the aerosol-generating product 2 housed in the receiving cavity 110 using infrared rays. The above-mentioned method of heating the aerosol-generating product 2 with infrared rays has high heating efficiency because infrared rays have a certain degree of penetrability, do not require a medium, and 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, and thus make the baking of the aerosol-generating product 2 more uniform, avoiding the problem of local high temperatures causing the aerosol-generating product 2 to burn. At the same time, by disposing of the radiation layer 112 on the inner surface of the substrate 111, the infrared rays radiated by the radiation layer 112 do not need to pass through the substrate 111 and can directly radiate to the aerosol-generating product 2, resulting in high utilization of infrared rays.

[0072] The radiating layer 112 can be formed on the entire inner surface of the sidewall of the substrate 111 by means of screen printing, sputtering, coating, printing, etc. The radiating layer 112 can be an infrared layer, and the material of the infrared layer includes at least one of the high infrared emissivity materials such as perovskite system, spinel system, carbide, silicide, nitride, oxide and rare earth materials.

[0073] Combining Figures 3 to 5b , Figure 5a As Figure 4 the disassembled schematic view of the heating assembly under the first vision; Figure 5b As Figure 4 the disassembled schematic view of the heating assembly under the second vision; a plurality of heating films 12 are arranged on the receiving structure 11 on the side away from the radiation layer 112 of the base body 111, and are arranged on the receiving structure 11 along the length direction C of the receiving structure 11, for generating heat when powered on, to heat the radiation layer 112, so that the radiation layer 112 is heated to radiate infrared rays. Specifically, the heating film 12 uses a resistive material that releases Joule heat when powered on, such as a thick film printed resistor layer, a thin film printed resistor layer, or a nano resistor layer, etc.

[0074] Among them, as Figure 3 shown, when the base body 111 is an insulating base body 111, a plurality of heating films 12 are arranged on the side surface away from the radiation layer 112 of the base body 111, and the heat generated by the heating film 12 is conducted to the radiation layer 112 through the base body 111 to heat the radiation layer 112. It can be understood that in this embodiment, the heating film 12 is arranged directly on the surface of the receiving structure 11, that is, the heating film 12 is in direct contact with the surface of the receiving structure 11. When the base body 111 is a non-insulating base body 111, preferably, the base body 111 is made of a metal material, for example, made of stainless steel, as Figure 6 shown, Figure 6 is a transverse sectional view of the heating assembly 10 provided by a specific embodiment of the present disclosure; the side surface of the base body 111 away from the radiation layer 112 is also formed with a high-temperature-resistant first insulating layer 113, and the heating film 12 is arranged on the side surface of the first insulating layer 113 away from the base body 111, to prevent short circuit between the heating film 12 and the base body 111; at this time, the heat generated by the heating film 12 is sequentially conducted to the radiation layer 112 through the first insulating layer 113 and the base body 111 to heat the radiation layer 112. It can be understood that in this embodiment, the heating film 12 is arranged on the receiving structure 11 through the first insulating layer 113, that is, the heating film 12 is indirectly in contact with the surface of the receiving structure 11. In a specific embodiment, the first insulating layer 113 can be a glaze layer.

[0075] In this embodiment, in order to improve the heat utilization rate of the heating assembly 10, to further improve the heating efficiency of the aerosol generating article 2; refer to Figure 7 , Figure 7The structure diagram of the aerosol generating article 2 provided by an embodiment of the present disclosure is housed in the housing structure 11; when the aerosol generating article 2 is housed in the housing cavity 110, the aerosol generating article 2 is in direct contact with the inner surface of the side wall of the housing structure 11 (such as the surface of the radiation layer 112). In this way, while heating the inside of the aerosol generating article 2 by infrared radiation, the heat of the heating film 12 can be simultaneously conducted to the aerosol generating article 2 through the housing structure 11 (such as the radiation layer 112) to further heat the aerosol generating article 2 by the heat, thereby improving the heat utilization rate, accelerating the atomization efficiency and the generation speed of the aerosol.

[0076] Of course, in other embodiments, as shown in Figure 8 , Figure 8 The structure diagram of the aerosol generating article 2 provided by another embodiment of the present disclosure is housed in the housing structure 11; when the aerosol generating article 2 is housed in the housing cavity 110, the aerosol generating article 2 can also be arranged spaced apart from the inner surface of the side wall of the housing structure 11 (such as the radiation layer 112) to prevent the problem of scratching or smearing the radiation layer 112. It can be understood that in this embodiment, the aerosol generating article 2 is mainly heated by infrared radiation. Further, the surface of the heating film 12 or / and the radiation layer 112 can be further coated with a protective layer, and the protective layer can specifically adopt a glaze layer. The thickness of the radiation layer 112 can be 10-100 microns. Preferably, the thickness of the radiation layer 112 is 20-40 microns. In this embodiment, the radiation layer 112 can be made by thick film printing. The material of the radiation layer 112 can include one or more of black silicon, cordierite, transition metal oxide series spinel, rare earth oxide, ion co-doped perovskite, silicon carbide, zircon and boron nitride. Of course, the thickness of the radiation layer 112 can also be 1-10 microns; preferably, the thickness of the radiation layer 112 is 1-5 microns. In this embodiment, the radiation layer 112 is specifically a thin film coating. The material of the radiation layer 112 can be CrC, TiCN, diamond-like thin film (DLC).

[0077] In combination Figure 9a , Figure 9a For Figure 4 The schematic diagram of the plurality of heating films and power supply assemblies shown in the above embodiment is spread along the circumferential direction of the housing structure 11; each heating film 12 includes at least one heating wire. In a specific embodiment, each heating film 12 includes at least two heating wires 121, 122 connected in parallel, and each heating wire 121 / 122 extends along the length direction C (see below Figure 13 ) or the circumferential direction (such as Figure 9a ) of the housing structure 11 in a line shape. It can be understood that the length dimension of the heating wire 121 in a line shape is much larger than the width dimension.

[0078] In a specific embodiment, as shown in Figure 9a Specifically, at least two heating lines 121, 122 in each heating film 12 are curved. The curve can be a U-shaped curve or an S-shaped curve. Of course, in other specific embodiments, each heating line 121, 122 can also be any other irregularly curved line, such as a curve combining S-shaped and U-shaped curves; the present disclosure does not limit this.

[0079] In combination with Figure 4 and Figure 9a Specifically, the power supply assembly 13 includes at least three electrodes; the at least three electrodes are respectively used to be coupled with the power supply assembly 20, and each two electrodes form a group to form an independent power supply group and are electrically connected with one of the plurality of heating films 12, so as to supply power to the corresponding heating film 12 through the power supply group, so that the power and heating time of each power supply group are respectively controlled by the electric control board of the aerosol generating device 1, so that the plurality of heating films 12 arranged at intervals can independently receive the electric power of the power supply assembly 20 through the corresponding power supply group, so as to form a plurality of heating areas on the accommodation structure 11 along the length direction C of the accommodation structure 11, to realize the segmented heating of the heating assembly 10 along the length direction C thereof, and further to control the heating temperature of different heating areas according to the actual temperature field demand, so as to ensure the continuous release of the aerosol and the consistency of the taste before and after the user smokes, and to avoid the phenomenon of local temperature being too high or too low. Each heating film 12 is correspondingly connected with two electrodes. Each electrode can specifically adopt a metal material with high conductivity, such as silver, gold, copper, and an alloy containing gold, silver, and copper.

[0080] Specifically, as shown in Figure 4 Specifically, the at least three electrodes are arranged at the first end a and / or the second end b of the accommodation structure 11. By arranging the at least three electrodes for being coupled with the power supply assembly 20 at the first end a and / or the second end b of the accommodation structure 11, not only can the plurality of heating films 12 be respectively supplied with power to realize the segmented heating function of the heating assembly 10, but also there is no need to additionally arrange electrodes for being coupled with the power supply at the middle region of the accommodation structure 11 along the length direction C thereof, so as to effectively avoid the problem that the electrodes located at the middle region of the accommodation structure 11 conduct heat to the outside due to contact with other metals, and further to not only reduce the energy consumption of the heating assembly 10, but also ensure the consistency of the temperature of the middle region of the accommodation structure 11 and the temperature of the nearby other regions, improve the atomization effect of the aerosol generating article 2 corresponding to the middle region of the accommodation structure 11, and enhance the taste and experience of the user during smoking.

[0081] In one embodiment, in combination with Figures 4 to 9a, the number of the plurality of heating films 12 is two, and the two heating films 12 are respectively a first heating film 12a and a second heating film 12b; the first heating film 12a and the second heating film 12b are arranged at intervals along a length direction C of the accommodation structure 11, and the first heating film 12a is arranged at a position close to the first end a of the accommodation structure 11. The second heating film 12b is arranged at a position close to the second end b of the accommodation structure 11. Specifically, the first heating film 12a and the second heating film 12b are arranged at two sides of a central section of the accommodation structure 11 and symmetrically distributed along the central section. The central section of the accommodation structure 11 refers to a transverse section of the accommodation structure 11, which passes through a midpoint of the accommodation structure 11 along the length direction C.

[0082] Specifically, as shown in Figure 9a , the first heating film 12a and / or the second heating film 12b includes two heating lines arranged at intervals. Hereinafter, taking the first heating film 12a including two heating lines of a first heating line 121 and a second heating line 122 arranged at intervals as an example for description. The first heating line 121 is a U-shaped curve extending along a circumferential direction of the accommodation structure 11, and each U-shaped structure of the U-shaped curve is open toward a direction parallel to the length direction C of the accommodation structure 11. The second heating line 122 surrounds an outer contour of the first heating line 121 in a door-shaped structure.

[0083] Specifically, referring to Figure 9b , Figure 9b , a structure diagram of the first heating film and the first electrode and the second electrode in Figure 9a . The second heating line 122 includes a first part 122a, a second part 122b, and a third part 122c. One end of the first part 122a is electrically connected to the first electrode 131, and the other end is connected to the second part 122b; one end of the third part 122c is electrically connected to the second electrode 132, and the other end is electrically connected to the second part 122b.

[0084] In a specific embodiment, along the circumferential direction of the accommodation structure 11, the first part 122a of the second heating line 122 is arranged at one side of the first heating line 121, the third part 122c of the second heating line 122 is arranged at the other side of the first heating line 121, and the third part 122c of the second heating line 122 extends along the length direction C of the accommodation structure 11 toward a direction close to the first end a of the accommodation structure 11 and is in a straight line type.

[0085] The first part 122a of the second heating line 122 is a U-shaped curve extending along the circumferential direction of the accommodation structure 11. Specifically, the first part 122a and the first heating line 121 are located at the same height position along the length direction of the accommodation structure 11; and the first part 122a and the first heating line 121 are both U-shaped curves, and the size of each U-shaped structure is the same.

[0086] The second portion 122b of the second heating wire 122 is located on one side of the first heating wire 121 close to the central area of the accommodation structure 11, and extends linearly along the circumferential direction of the accommodation structure 11 and is configured as an arc structure.

[0087] The second heating film 12b includes two heating wires arranged at intervals, and the specific structure is similar to that of the first heating film 12a. Those skilled in the art can understand that the third portion 122c of the second heating wire 122 in the second heating film 12b extends towards the direction close to the second end b of the accommodation structure 11.

[0088] In combination Figure 9a The power supply assembly 13 includes four electrodes, namely a first electrode 131, a second electrode 132, a third electrode 133, and a fourth electrode 134. Among them, the first electrode 131 and the second electrode 132 are arranged at the first end a of the accommodation structure 11 and are respectively electrically connected with the first heating film 12a. The third electrode 133 and the fourth electrode 134 are arranged at the second end b of the accommodation structure 11 and are respectively electrically connected with the second heating film 12b.

[0089] In a specific embodiment, the two ends of the first heating wire 121 of the first heating film 12a respectively extend to the position close to the first end a of the accommodation structure 11 to be respectively electrically connected with the first electrode 131 and the second electrode 132. The two ends of the second heating wire 122 of the first heating film 12a also respectively extend to the position close to the first end a of the accommodation structure 11 to be respectively electrically connected with the first electrode 131 and the second electrode 132, so as to realize the electrical connection of the plurality of heating wires of the first heating film 12a with the first electrode 131 and the second electrode 132 respectively.

[0090] The two ends of the first heating wire 121 of the second heating film 12b respectively extend to the position close to the second end b of the accommodation structure 11 to be respectively electrically connected with the third electrode 133 and the fourth electrode 134. The two ends of the second heating wire 122 of the second heating film 12b also respectively extend to the position close to the second end b of the accommodation structure 11 to be respectively electrically connected with the third electrode 133 and the fourth electrode 134, so as to realize the electrical connection of the plurality of heating wires of the second heating film 12b with the third electrode 133 and the fourth electrode 134 respectively.

[0091] In a specific embodiment, in combination Figure 9aEach 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 connecting portion 135b. The coupling portion 135a is disposed at the end of the housing structure 11 for coupling with 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 in 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 spaced apart.

[0092] Since the coupling part 135a coupled to the power supply component 20 is located at the end of the housing structure 11, and the middle region of the housing structure 11 along its length direction C does not have a coupling part to be coupled to the power supply component 20, the problem of heat conduction to the outside is effectively avoided by the coupling part located in the middle region of the housing structure 11 coming into contact with other metals. This not only reduces the energy consumption of the heating component 10, but also ensures the temperature consistency between the middle region of the housing structure 11 and other nearby regions, thereby improving the atomization effect of the aerosol generating product 2 corresponding to the middle region of the housing structure 11.

[0093] The connecting portion 135b is electrically connected to the coupling portion 135a and protrudes along the length direction C of the housing structure 11 in a direction away from the coupling portion 135a to which it is connected, so as to be electrically connected to one end of each heating wire of the adjacent heating film 12.

[0094] Of course, in other embodiments, see Figure 10 , Figure 10 This is a schematic diagram of the unfolded plurality of heating films and power supply components provided for another embodiment; the coupling portions 135a of the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134 may also be located at the same end of the housing structure 11. For example, the coupling portions 135a of the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134 are all located at the second end b of the housing structure 11. In this embodiment, the connecting portion 135b of the first electrode 131 and the connecting portion 135b of the second electrode 132 may 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 extend along the circumferential direction of the housing structure 11, and this disclosure does not limit this.

[0095] In another embodiment, see Figures 11 to 13 , Figure 11 A perspective view of a heating assembly provided in another embodiment of this disclosure; Figure 12 for Figure 11A disassembled schematic view of the heating assembly shown;

[0096] Figure 13 For Figure 11 A schematic view of the plurality of heating films and the power supply assembly shown deployed along the circumferential direction of the receiving structure. Another heating assembly 10 is provided, which differs from the heating assembly 10 provided in the first embodiment described above in that the power supply assembly 13 comprises a first electrode 136, a second electrode 137 and a third electrode 138.

[0097] As Figure 11 shown, the first electrode 136 is disposed at the first end a of the receiving structure 11 and is electrically connected to the first heating film 12a. The first electrode 136 is specifically an arc-shaped structure extending along the circumferential direction of the receiving structure 11. The second electrode 137 is disposed at the second end b of the receiving structure 11 and is electrically connected to the second heating film 12b; the second electrode 137 is specifically an arc-shaped structure extending along the circumferential direction of the receiving structure 11.

[0098] The third electrode 138 is located at the same end of the receiving structure 11 as the first electrode 136 or the second electrode 137 and is electrically connected to the first heating film 12a and the second heating film 12b, respectively. It can be understood that one of the first electrode 136 and the third electrode 138 is electrically connected to the positive pole of the power supply, and the other is electrically connected to the negative pole of the power supply; both the first electrode 136 and the second electrode 137 are electrically connected to the positive pole or the negative pole of the power supply.

[0099] In combination Figure 13 , the third electrode 138 specifically comprises a common connection portion 139a and a common connection portion 139b; the common connection portion 139a is located at the same end of the receiving structure 11 as the first electrode 136 or the second electrode 137, and is used to connect to the power supply assembly 20. Specifically, the common connection portion 139a can be located at the second end b of the receiving structure 11. The common connection portion 139b is electrically connected to the common connection portion 139a, and the common connection portion 139b extends along the length direction C of the receiving structure 11 towards a direction away from the common connection portion 139a, to be 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.

[0100] Specifically, in this embodiment, as Figure 13As shown, the plurality of heating lines of the first heating film 12a and the plurality of heating lines of the second heating film 12b are respectively curves extending along the length direction C of the accommodation 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 respectively U-shaped curves extending along the length direction of the accommodation structure 11, and each U-shaped structure of the U-shaped curve faces the length direction C of the accommodation structure 11.

[0101] Specifically, the first heating line 121 and the second heating line 122 in the first heating film 12a are symmetrically distributed along the middle axis M of the width direction of the first heating film 12a; and / or the first heating line 121 and the second heating line 122 in the second heating film 12b are symmetrically distributed along the middle axis N of the width direction of the second heating film 12b.

[0102] In specific embodiments, as shown, Figure 13 As shown, the first ends of the plurality of heating lines in the first heating film 12a are connected together, and then electrically connected to the first electrode 136. The second ends of the plurality of heating lines are connected together, and then electrically connected to the one end of the common connecting portion 139b away from the common connecting portion 139a. For example, the first ends of the first heating line 121 in the first heating film 12a and the second heating line 122 in the first heating film 12a are connected together. The second ends of the first heating line 121 in the first heating film 12a and the second heating line 122 in the first heating film 12a are connected together.

[0103] Specifically, the first heating film 12a can further include a first connecting portion 123 extending along the circumferential direction of the accommodation structure 11, and 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 connecting portion 123, so as to be electrically connected to the first electrode 136 through the part of the first connecting portion 123 protruding towards the first electrode 136.

[0104] Specifically, the first heating film 12a can further include a second connecting portion 124 extending along the circumferential direction of the accommodation structure 11, and 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 connecting portion 124, so as to be electrically connected to the one end of the common connecting portion 139b away from the common connecting portion 139a through the part of the second connecting portion 124.

[0105] Similarly, the second heating film 12b can further include a third connecting portion 125 extending along the circumferential direction of the accommodating structure 11, and the first end of the first heating line 121 and the first end of the second heating line 122 of the second heating film 12b are respectively connected to the third connecting portion 125, so as to be electrically connected to the second electrode 137 through the portion of the third connecting portion 125 protruding towards the second electrode 137.

[0106] Specifically, the second heating film 12b can further include a fourth connecting portion 126 extending along the circumferential direction of the accommodating structure 11, and the second end of the first heating line 121 and the second end of the second heating line 122 of the second heating film 12b are respectively connected to the fourth connecting portion 126, so as to be electrically connected to one end of the common connecting portion 139b away from the common connecting portion 139a through the portion of the fourth connecting portion 126. Wherein, the fourth connecting portion 126 and the second connecting portion 124 are adjacently arranged along the length direction C of the accommodating structure 11.

[0107] Of course, in other embodiments, referring to Figure 14 , Figure 14 The schematic diagram of the plurality of heating films and the power supply assembly provided by yet another embodiment after being unfolded; the first electrode 136 or the second electrode 137 can also include a connecting portion and a connecting portion, and the connecting portion of the first electrode 136, the connecting portion of the second electrode 137 and the common connecting portion 139a of the third electrode 138 can be located at the same end of the accommodating structure 11. For example, the connecting portion of the first electrode 136, the common connecting portion 139a of the second electrode 137 and the third electrode 138 are all located at the second end b of the accommodating structure 11. In this embodiment, the connecting portion of the first electrode 136 can extend towards the first end a of the accommodating structure 11 and be electrically connected to the first connecting portion 123 of the first heating film 12a.

[0108] The heating assembly 10 provided in the above two embodiments is provided with the accommodation structure 11 and the plurality of heating films 12, the plurality of heating films 12 are arranged on the accommodation structure 11 along the length direction C of the accommodation structure 11, and each heating film 12 is linearly distributed, so that the accommodation structure 11 is heated by the plurality of heating films 12 when powered to radiate infrared rays, so as to heat and atomize the aerosol generating article 2 accommodated in the accommodation structure 11 by the infrared rays. Among them, the heating mode by infrared rays has certain penetration, does not need medium, and has high heating efficiency, which can effectively improve the preheating efficiency of the aerosol generating article 2, and can effectively reduce the temperature difference between the inside and outside of the aerosol generating article 2, so that the baking of the aerosol generating article 2 is more uniform, and the problem of local high temperature causing the aerosol generating article 2 to be burned is avoided. In addition, the power supply assembly 13 is provided, the power supply assembly 13 includes at least three electrodes, and each two electrodes form a group and are electrically connected with one heating film 12 of the plurality of heating films 12, so as to supply power to the corresponding heating film 12 through the electrode group, so that the plurality of heating films 12 arranged at intervals can independently receive the electric power of the power supply assembly 20 through the corresponding electrode group, to form a plurality of heating areas on the accommodation structure 11 along the length direction C of the accommodation structure 11, to realize the segmented heating of the heating assembly 10, and then the heating assembly 10 can control the heating temperature of different heating areas according to the actual temperature field demand, to ensure the continuous release of aerosol and the consistency of taste before and after the user smokes, and to avoid the phenomenon of local temperature being too high or too low. In addition, the at least three electrodes used for coupling with the power supply assembly 20 are arranged at the first end a and / or the second end b of the accommodation structure 11, which not only can supply power to the plurality of heating films 12 respectively to realize the segmented heating function of the heating assembly 10, but also does not need to additionally arrange electrodes coupled with the power supply in the middle region of the accommodation structure 11 along the length direction, effectively avoiding the problem that the electrodes in the middle region of the accommodation structure 11 conduct heat to the outside due to contact with other metals, thereby not only reducing the energy consumption of the heating assembly 10, but also ensuring the consistency of the temperature of the middle region of the accommodation structure 11 and the temperature of the nearby other regions, improving the atomization effect of the aerosol generating article 2 corresponding to the middle region of the accommodation structure 11, and enhancing the taste and experience of the user during smoking.

[0109] In the second embodiment, referring to Figure 15 , Figure 15 the transverse sectional view of the heating assembly 10 provided in the second embodiment of the present disclosure is provided; a second heating assembly 10 is provided, which is different from the heating assembly 10 provided in the above first embodiment in that the radiation layer 112 is arranged on the outer surface of the side wall of the base body 111.

[0110] In this embodiment, as Figure 15As shown, when the radiation layer 112 is an insulating radiation layer 112, the heating film 12 is specifically arranged on the side surface of the radiation layer 112 away from the substrate 111. After the heating film 12 is powered on, the heat generated by the heating film 12 is directly conducted to the radiation layer 112, the radiation layer 112 is heated to generate infrared rays, the infrared rays penetrate the transparent substrate 111 into the accommodation cavity 110 to heat the aerosol generating article 2 accommodated in the accommodation cavity 110. In this embodiment, the aerosol generating article 2 can also be directly in contact with the transparent substrate 111 to directly conduct the heat of the substrate 111 to the aerosol generating article 2 for heating; or, the aerosol generating article 2 is arranged in a spaced manner with the substrate 111.

[0111] When the radiation layer 112 is a non-insulating material, for example, Figure 16 As shown, Figure 16 a transverse sectional view of a heating assembly provided by another specific embodiment of the present disclosure; in order to avoid short circuit of the heating film 12, a second insulating layer 114 is further arranged on the surface of the radiation layer 112 away from the substrate 111, and the second insulating layer 114 is located between the radiation layer 112 and the heating film 12.

[0112] In a third embodiment, referring to Figure 17 , Figure 17 a transverse sectional view of a heating assembly provided by a third embodiment of the present disclosure; another kind of heating assembly 10 is provided, which is different from the heating assembly 10 provided by the above-mentioned embodiments in that: the accommodation structure 11 includes the substrate 111; and the heating film 12 is specifically arranged on the outer surface of the side wall of the substrate 111.

[0113] The substrate 111 is in a hollow tubular shape, and the substrate 111 includes a main body and an infrared radiation material dispersed in the main body. The main body forms the accommodation cavity 110 and the proximal opening communicating with the accommodation cavity 110 to accommodate the aerosol generating article 2. The substrate 111 radiates infrared rays when heated to heat the aerosol generating article 2. It can be understood that this embodiment is that the substrate 111 itself radiates infrared rays, and the surface of the substrate 111 does not additionally have an infrared layer. The substrate 111 can specifically be a quartz tube.

[0114] Of course, in order to improve the amount of radiated infrared rays and improve the heating speed, an infrared radiation layer can also be further arranged on the surface of the substrate 111; specific contents can be referred to the above, and will not be described here.

[0115] The above is only an embodiment of the present disclosure, and does not limit the patent scope of the present disclosure, and any equivalent structure or equivalent process transformation made by using the content of the present disclosure and the drawings, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present disclosure.

Claims

1. A heating assembly, characterized by, The heating assembly comprises: a receiving structure having a proximal opening for receiving an aerosol generating article through the proximal opening and radiating infrared rays to heat the aerosol generating article when heated; a plurality of heating films including a first heating film and a second heating film, which are arranged on the receiving structure along a length direction of the receiving structure and used to heat the receiving structure when powered on; wherein each of the heating films is in a linear distribution; the first heating film and the second heating film are arranged on both sides of a central section of the receiving structure and symmetrically distributed along the central section; a power supply assembly including at least three electrodes; the at least three electrodes are respectively used to be coupled with a power supply assembly and arranged at a first end and / or a second end of the receiving structure; and each group of two electrodes is electrically connected with one of the heating films to supply power to the corresponding heating film; wherein each of the heating films includes at least two heating lines in parallel.

2. The heating assembly according to claim 1, wherein at least part of the heating lines in the at least two heating lines are curves.

3. The heating assembly according to claim 2, wherein the curves are U-shaped curves or S-shaped curves.

4. The heating assembly according to any one of claims 1-3, 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 are arranged at the first end of the receiving structure and respectively electrically connected with the first heating film; the third electrode and the fourth electrode are arranged at the second end of the receiving structure and respectively electrically connected with the second heating film.

5. The heating assembly according to claim 4, wherein two ends of the plurality of heating lines of the first heating film respectively extend to positions close to the first end of the receiving structure to be respectively electrically connected with the first electrode and the second electrode; two ends of the plurality of heating lines of the second heating film respectively extend to positions close to the second end of the receiving structure to be respectively electrically connected with the third electrode and the fourth electrode.

6. The heating assembly according to claim 5, wherein each of the first electrode, the second electrode, the third electrode and the fourth electrode includes a coupling portion and a connecting portion; the coupling portion is arranged at an end of the receiving structure and used to be coupled with a power supply assembly to supply power to the corresponding heating film; the connecting portion is electrically connected with the coupling portion and extends along a length direction of the receiving structure towards a direction away from the coupling portion to be electrically connected with one end of each of the heating lines in the adjacent heating film.

7. The heating assembly according to claim 6, wherein the coupling portion is configured as an arc-shaped structure extending along a circumferential direction of the receiving structure.

8. The heating assembly according to claim 5, wherein each of the heating films includes a first heating line and a second heating line arranged in a spaced manner; the first heating line is a curve extending along a circumferential direction of the receiving structure; and the second heating line surrounds a peripheral contour of the first heating line.

9. The heating assembly according to claim 8, wherein the second heating wire comprises a first portion, a second portion and a third portion connected in sequence; the first portion is located on one side of the first heating wire along the circumferential direction of the accommodating structure, and 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 accommodating structure; and the third portion is a straight line extending along the length direction of the accommodating structure. The second portion is located on the side of the first heating wire close to the central region of the accommodating structure, and the second portion is a straight line extending along the circumferential direction of the accommodating structure.

10. The heating assembly according to claim 9, wherein the first portion and the first heating wire are both U-shaped curves, and the size of each U-shaped structure is the same.

11. The heating assembly according to any one of claims 1-3, wherein the power supply assembly comprises a first electrode, a second electrode and a third electrode; the first electrode is arranged at the first end of the accommodating structure and electrically connected with the first heating film; the second electrode is arranged at the second end of the accommodating structure and electrically connected with the second heating film; and the third electrode is located at the same end of the accommodating structure as the first electrode or the second electrode and is electrically connected with the first heating film and the second heating film, respectively.

12. The heating assembly according to claim 11, wherein the first electrode and / or the second electrode is an arc-shaped structure extending along the circumferential direction of the accommodating structure; and the third electrode comprises a common connecting portion and a common connecting portion; the common connecting portion is located at the same end of the accommodating structure as the first electrode or the second electrode and is used for connecting with the power supply assembly; and the common connecting portion is electrically connected with the common connecting portion and extends along the length direction of the accommodating structure away from the common connecting portion to be electrically connected with the first heating film and the second heating film, respectively.

13. The heating assembly according to claim 12, wherein 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 length direction of the accommodating structure, respectively.

14. The heating assembly according to claim 13, wherein the first heating film further comprises a first connecting portion and a second connecting portion; the first end of each heating wire in the first heating film is connected with the first connecting portion, respectively, to be electrically connected with the first electrode through the part of the first connecting portion; the second end of each heating wire in the first heating film is connected with the second connecting portion, respectively, to be electrically connected with the third electrode through the part of the second connecting portion; and / or ​ ​ ​ ​ ​ ​ ​ The second heating film further comprises a third connecting portion and a fourth connecting portion; the first end of each heating wire in the second heating film is connected with the third connecting portion respectively, so as to be electrically connected with the second electrode through the part of the third connecting portion; the second end of each heating wire in the second heating film is connected with the fourth connecting portion respectively, so as to be electrically connected with the third electrode through the part of the fourth connecting portion.

15. The heating assembly of claim 1, wherein, The accommodation structure comprises: a base body in a hollow tubular shape for accommodating the aerosol generating article; a radiation layer arranged on the inner surface of the side wall of the base body for radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the side of the base body away from the radiation layer.

16. The heating assembly of claim 1, wherein, The accommodation structure comprises: a base body in a hollow tubular shape for accommodating the aerosol generating article; a radiation layer arranged on the outer surface of the side wall of the base body for radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the side of the radiation layer away from the base body.

17. The heating assembly of claim 1, wherein, The accommodation structure comprises: a base body in a hollow tubular shape; and the base body comprises a main body and an infrared radiation material dispersed in the main body; the base body is used for accommodating an aerosol generating substrate and radiating infrared rays to heat the aerosol generating article when heated; wherein the heating film is arranged on the outer surface of the side wall of the base body.

18. The heating assembly of any of claims 15-17, wherein, The base body is a transparent base body.

19. An aerosol-generating device comprising: It comprises: a heating assembly as claimed in any one of claims 1-18; a power supply assembly electrically connected with the heating assembly for supplying power to the heating assembly.

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