Heating assembly and aerosol generating device

Abstract

The present application provides a heating assembly and an aerosol generating device. The heating assembly includes a heating element, a conductive first electrode, and a conductive second electrode. The heating element is used to heat an aerosol-generating matrix when energized, the first electrode is disposed on the inner surface of the heating element, and the first electrode has a first connection part, the second electrode and the first electrode are disposed on the inner surface of the heating element with a gap between them, and the second electrode has a second connection part, where the first connection part and the second connection part are located at the same end of the heating element and connected to a power supply assembly. The heating assembly and the aerosol generating device greatly simplify the wiring path of the conductor, not only shortening the length of the conductor, but also effectively reducing the manufacturing cost and difficulty.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from a Chinese patent application with application number 2021108410964 filed on July 23, 2021, the entire contents of which are incorporated herein by reference.

[0002] TECHNICAL FIELD This application relates to the field of electronic atomization devices, and more particularly to heating assemblies and aerosol generating devices. [Background technology]

[0003] Heat-based non-combustion aerosol generators have been attracting increasing attention due to their advantages of being safe, convenient, healthy, and environmentally friendly.

[0004] Conventional non-combustion aerosol generators generally include a heating assembly that, when energized, heats and atomizes an aerosol-generating matrix. Specifically, the heating assembly includes a first electrode and a second electrode. The first electrode is positive electrode The heating assembly is connected to a power source via the positive and negative leads, and the second electrode is connected to a negative lead. The heating assembly is further connected to a power source via the positive and negative leads, so that the power source can power the heating assembly.

[0005] However, when using conventional heating assemblies, the wiring paths of the positive and / or negative leads are complicated, resulting in high manufacturing costs and difficulties. Summary of the Invention [Problem to be solved by the invention]

[0006] In view of this, the present application provides a heating assembly and an aerosol generating device, which solves the problems of conventional heating assemblies, such as complicated wiring paths for the positive and / or negative leads, high manufacturing costs, and high manufacturing difficulties. [Means for solving the problem]

[0007] To solve the above technical problems, the present application provides a first technical solution as follows: The present application provides a heating assembly, the heating assembly including a heating element, a first conductive electrode, and a second conductive electrode, the heating element accommodates an aerosol-generating matrix and is used to heat the aerosol-generating matrix when energized, the first electrode is located on the inner surface of the heating element, the first electrode has a first connecting part, the second electrode and the first electrode are located on the inner surface of the heating element with a gap between them, and the second electrode has a second connecting part, the first connecting part and the second connecting part are located at the same end of the heating element and connected to a power supply assembly.

[0008] The heating element includes a substrate and an infrared heating layer. The substrate has a receiving cavity with an open end, the receiving cavity is used to receive an aerosol-generating matrix through the opening, a first electrode and a second electrode are both disposed on the inner surface of the receiving cavity, the infrared heating layer is disposed on the inner surface of the substrate and is connected to the first electrode and the second electrode, respectively, and the infrared heating layer generates infrared waves when energized to heat the aerosol-generating matrix. The heating assembly further includes an infrared reflecting layer, the infrared reflecting layer is disposed on the outer surface of the substrate and is used to reflect infrared rays emitted from the infrared heating layer.

[0009] Here, the heating element includes a plurality of sub-heating elements, each of which has a first sub-connection portion and / or a second sub-connection portion provided on its inner surface, and the first sub-connection portions on the plurality of sub-heating elements form the first connection portion, and the second connection portions on the plurality of sub-heating elements form the second connection portion.

[0010] Here, a first sub-connection portion and a second sub-connection portion are provided on the inner surface of each sub-heating element, and the first sub-connection portion and the second sub-connection portion of the same sub-heating element are each electrically connected to the infrared heating layer of the sub-heating element by an extension portion, thereby allowing the infrared heating layer of each sub-heating element to operate independently.

[0011] Here, the heating element includes a first sub-heating element and a second sub-heating element, and a first sub-connection portion, a second sub-connection portion, a first extension portion, and two second sub-extension portions are provided on both the inner surface of the first sub-heating element and the inner surface of the second sub-heating element, and the two second sub-extension portions installed opposite the first sub-heating element and the second sub-heating element form a second extension portion, and one heating region is formed between adjacent first extension portions and second sub-extension portions so that both the first sub-heating element and the second sub-heating element can heat the aerosol generating matrix when energized.

[0012] Here, a third sub-connection portion is provided on the inner surface of both the first sub-heating element and the second sub-heating element, and the third sub-connection portion is connected to the two second sub-extension portions of the same sub-heating element. Here, the heating assembly further includes a first conductive elastic piece and a second conductive elastic piece. The first conductive elastic piece is installed on the inner surface of the heating element and electrically connected to the first sub-connection portion on each sub-heating element, and / or the second conductive elastic piece is installed on the inner surface of the heating element and electrically connected to the second sub-connection portion on each sub-heating element.

[0013] Here, the heating assembly further includes a fixing mechanism, which is fitted to the outer wall of the heating element and is used to fix the plurality of sub-heating elements to form the heating element, wherein the fixing mechanism includes a first fixing member and a second fixing member, the first fixing member being fitted to first ends of the plurality of heating elements and used to fix the first ends of the plurality of sub-heating elements, and the second fixing member being fitted to second ends of the plurality of sub-heating elements and used to fix the second ends of the plurality of sub-heating elements.

[0014] Here, the first connection portion extends along the circumferential direction of the heat generating element and has a notch.

[0015] Here, the second connection portion is located at the position of the notch and coincides in height with the first connection portion in the axial direction of the heating element.

[0016] Here, the heating element has opposing first and second ends, the first connection portion and the second connection portion are both provided at the first end of the heating element, the first electrode further includes at least one first extension portion connected to the first connection portion, the first extension portion extending from the first connection portion toward the second end of the heating element, the second electrode further includes at least one second extension portion connected to the second connection portion, the second extension portion extending from the second connection portion toward the second end of the heating element, and one heating region is formed between adjacent first and second extension portions.

[0017] Here, the first extension portion and / or the second extension portion extend along the axial direction of the heating element and are linear.

[0018] Here, one first extension section and one second extension section are installed at a distance from each other, or multiple first extension sections and multiple second extension sections are installed alternately at a distance from each other, thereby dividing the heating element into an even number of heating regions.

[0019] Here, the distance between any adjacent first extension portion and second extension portion is the same.

[0020] Here, the first extension portion and the second extension portion extend along the circumferential direction of the heating element and have a spiral shape, and the heating region is located between one first extension portion and one second extension portion, and a spiral-shaped heating region is formed.

[0021] Here, the extension direction of the first extension portion and the extension direction of the second extension portion coincide with each other.

[0022] Here, the second electrode further includes a third connection portion, which is used to connect to the negative electrode lead, and the third connection portion is installed at the second end of the heating element and connected to at least one second extension portion.

[0023] Here, both the first connecting portion and the second connecting portion are disposed at intervals from the infrared heat generating layer of the heat generating element.

[0024] Here, the first connecting portion, the second connecting portion and the third connecting portion are all disposed at intervals from the infrared heat generating layer of the heat generating element.

[0025] Here, the heating element further includes a restricting member, which is provided on the base and is used to position the aerosol-generating matrix so that there is a gap between the outer surface of the aerosol-generating matrix and the inner surface of the storage cavity, and the restricting member has a restricting port, which is connected to the storage cavity and has a diameter smaller than the inner diameter of the storage cavity, and the aerosol-generating matrix is ​​stored in the storage cavity through the restricting port.

[0026] To solve the above technical problems, the present application adopts another technical solution as follows: The present application provides an aerosol generating device, which includes a heating assembly and a power supply assembly, the heating assembly being used to heat the aerosol-generating matrix after being energized, the heating assembly being any of the heating assemblies described above, and the power supply assembly being electrically connected to the heating assembly and used to supply power to the heating assembly.

[0027] In the heating assembly and aerosol generating device provided by the present application, the heating assembly has a first connection part for connecting to the positive electrode lead and a second connection part for connecting to the negative electrode lead installed at the same end of the inner surface of the heating element, so that the positive electrode lead and the negative electrode lead can be connected to the same end of the heating element, and there is no need to wire the positive electrode lead or the negative electrode lead to the other end to connect to the corresponding electrode. Compared to solutions that require wiring the positive electrode lead and the negative electrode lead at both ends, this can greatly simplify the wiring path of the conductors, reduce the length of the conductors, and effectively reduce manufacturing costs and difficulty. [Brief explanation of the drawings]

[0028] In order to more clearly describe the technical solutions in the embodiments of the present application, the following briefly describes the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can obtain other drawings from these drawings without any creative efforts. [Figure 1] 1 is a schematic diagram of the overall structure of a heating assembly provided in a first embodiment of the present application; [Figure 2] 2 is a cross-sectional structural schematic diagram of the heating assembly shown in FIG. 1 along line A-A according to one embodiment of the present application. FIG. [Figure 3] 2 is a structural schematic diagram of an outer wall of the heating assembly shown in FIG. 1 extending along its axial direction according to one embodiment of the present application. FIG. [Figure 4] FIG. 2 is a schematic diagram of the overall structure of a heating assembly according to a second embodiment of the present application. [Figure 5] 5 is a cross-sectional structural schematic diagram of the heating assembly shown in FIG. 4 along line B-B according to one embodiment of the present application. [Figure 6] 5 is a structural schematic diagram of an outer wall of the heating assembly shown in FIG. 4 extending along its axial direction according to one embodiment of the present application. FIG. [Figure 7] FIG. 1 is a cross-sectional structural schematic diagram illustrating the insertion of an aerosol generating device according to one embodiment of the present application into a heating assembly. [Figure 8] FIG. 10 is a structural schematic diagram of an outer wall of a heating assembly provided by a third embodiment of the present application, the outer wall extending along its axial direction. [Figure 9] FIG. 10 is a structural schematic diagram of an outer wall of a heating assembly provided in a fourth embodiment of the present application, the outer wall extending along its axial direction. [Figure 10] FIG. 10 is a structural schematic diagram of an outer wall of a heating assembly provided in a fifth embodiment of the present application, the outer wall extending along its axial direction. [Figure 11] FIG. 10 is a structural schematic diagram of an outer wall of a heating assembly provided in a sixth embodiment of the present application, the outer wall extending along its axial direction. [Figure 12]1 is a schematic diagram of the overall structure of a sub-heating element and a circuit on the sub-heating element according to one embodiment of the present application; [Figure 13] FIG. 11 is a structural schematic diagram of an outer wall of a heating assembly provided by a seventh embodiment of the present application, the outer wall extending along its axial direction. [Figure 14] FIG. 13 is a schematic diagram showing the overall structure of a heating assembly according to an eighth embodiment of the present application. [Figure 15] 1 is a structural schematic diagram of an aerosol generating device according to one embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0029] The technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application, and it is obvious that the following embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of the present application, all other embodiments that a person skilled in the art can obtain without inventive efforts fall within the protection scope of the present application.

[0030] In the following description, specific details such as particular system architectures, interfaces, techniques, etc. are provided for purposes of explanation and not limitation, in order to provide a thorough understanding of the present application.

[0031] The terms "first," "second," "third," etc. in this application are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance or the number of technical features described. Therefore, a feature defined as "first," "second," or "third" can explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, e.g., two, three, etc., unless otherwise clearly and specifically defined. All directional indications (e.g., up, down, left, right, front, rear, etc.) in the embodiments of this application are used to interpret the relative positional relationship, movement status, etc. between each component in a specific position (e.g., as shown in the drawings), and if the specific position changes, the directionality changes accordingly. Furthermore, the terms "comprise," "have," and any variations thereof in the embodiments of this application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the recited steps or units, but may optionally further include steps or units that are not recited, or may optionally further include other steps or units that are specific to the process, method, product, or apparatus.

[0032] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described with reference to the embodiment may be included in at least one embodiment of the present application. The appearance of such a combination in various places in the specification does not necessarily refer to the same embodiment, nor does it mean that the embodiments are mutually exclusive, independent, or alternative embodiments. As will be understood by those skilled in the art, both explicitly and implicitly, the embodiments described herein can be combined with other embodiments.

[0033] Hereinafter, the present application will be described in detail with reference to the drawings and embodiments.

[0034] Referring to Figures 1, 2 and 3, Figure 1 provides a structural schematic diagram of the heating assembly 100 of the first embodiment, Figure 2 is a cross-sectional structural schematic diagram of the heating assembly 100 of Figure 1 along A-A, and Figure 3 is a structural schematic diagram of the outer wall of the heating assembly 100 of Figure 1 extending along its axial direction.

[0035] The present application provides a heating assembly 100, which, when energized, heats an aerosol-generating matrix contained therein. The aerosol-generating matrix may be, for example, a plant leaf substrate or a paste-like substrate, and the plant leaf substrate may further contain an aromatic component. The aerosol-generating matrix may be wrapped in aluminum foil or paper and used together.

[0036] Specifically, the heating assembly 100 includes a heating element 110, a first electrode 120, and a second electrode .

[0037] Here, the heating element 110 is used to contain the aerosol-generating matrix, and contains a heat-generating material that supports the aerosol-generating matrix contained therein and generates heat when energized, thereby heating the aerosol-generating matrix contained therein to form an aerosol for consumption by a user.

[0038] The first electrode 120 is connected to the positive lead and the second electrode 130 is connected to the negative lead, thereby heating The assembly can receive power from an external power source, thereby energizing and generating heat in the heating element 110. The heating element 110 has an outer surface 110a and an inner surface 110b, and the conductive first electrode 120 and the conductive second electrode 130 are spaced apart on the inner surface 110b of the heating element 110 and electrically connected by a conductive infrared heating layer. In other embodiments, the first electrode 120 and the second electrode 130 may be provided on the outer surface 110a of the heating element 110, and are not limited to being provided only on the inner surface 110b of the heating element 110.

[0039] The first electrode 120 has a first connection portion 121, which is used to connect to a positive electrode lead. The second electrode 130 has a second connection portion 131, which is used to connect to a negative electrode lead. The first connection portion 121 and the second connection portion 131 are installed at a distance from each other at the same end of the heating element 110. The same end of the heating element 110 refers to the first end or the second end of the heating element 110. Specifically, if a plane perpendicular to the axial direction of the heating element 110 and passing through the center point of the axial direction of the heating element 110 is taken as the limit, the portion of the heating element 110 located on one side of the plane is the first end 110c of the heating element 110, and the portion of the heating element 110 located on the other side of the plane is the second end 110d of the heating element 110. Specifically, the heating element 110 has a hollow columnar shape and has opposing first and second ends 110c and 110d, and the first and second connection parts 121 and 131 are disposed at a distance from each other at the first end 110c of the heating element 110. This allows both the positive and negative leads to be connected to the first and second connection parts 121 and 131, respectively, at the same end of the heating element 110. In other embodiments, the first connection part 121 may be connected to the negative lead, and the second connection part 131 may be connected to the positive lead.

[0040] The first electrode 120 and the second electrode 130 may be a conductive coating applied to the inner surface 110b of the heating element 110. The conductive coating may be a metal coating, a conductive silver paste, a conductive strip, etc. The first electrode 120 and the second electrode 130 may be a metal conductive sheet provided on the inner surface 110b of the heating element 110 or a metal deposited on the outer surface 110a of the heating element 110, such as a gold film, an aluminum film, or a copper film.

[0041] In the heating assembly 100, the first connection part 121 for connecting to the positive lead and the second connection part 131 for connecting to the negative lead are disposed at the same end of the inner surface 110b of the heating element 110, so that the positive lead and the negative lead can be connected at the same end of the heating element 110, eliminating the need to wire the positive lead or the negative lead to the other end to connect to the corresponding electrode. Compared to a solution in which the first connection part 121 and the second connection part 131 are disposed at opposite ends of the heating element 110 and the positive lead and the negative lead must be connected at both ends, the wiring path of the conductors can be greatly simplified, the length of the conductors can be reduced, and manufacturing costs and difficulty can be effectively reduced.

[0042] The heating element 110 may be entirely made of a conductive material, such as a conductive ceramic. The heating element 110 may include an insulating substrate and a conductive infrared heating layer disposed on the surface of the insulating substrate. In one embodiment, the heating element 110 includes a substrate 111 and an infrared heating layer 112.

[0043] Here, the substrate 111 has a receiving cavity 1111, one end of which has an opening 11111. The receiving cavity 1111 is used to receive an aerosol-generating matrix through the opening 11111. Specifically, the diameter of the opening 11111 can be larger than or correspond to the outer diameter of the aerosol-generating matrix, and the inner diameter of the receiving cavity 1111 can be larger than or correspond to the outer diameter of the aerosol-generating matrix, so that the aerosol-generating matrix can be inserted into or removed from the receiving cavity 1111 through the opening 11111. Furthermore, in one embodiment, the outer wall of the aerosol-generating matrix and the inner wall of the receiving cavity 1111 can have some gap between them so that the aerosol-generating matrix can be more easily inserted into or removed from the receiving cavity 1111.

[0044] Furthermore, in one embodiment, the diameter of the opening 11111 can match the inner diameter of the accommodating cavity 1111. In another embodiment, the diameter of the opening 11111 is smaller than the inner diameter of the accommodating cavity 1111, and the central axis of the opening 11111 matches the central axis of the accommodating cavity, so that when the aerosol-generating matrix is ​​accommodated in the accommodating cavity 1111 through the opening 11111, the aerosol-generating matrix is ​​spaced apart from the inner wall surface of the accommodating cavity 1111, preventing the aerosol-generating matrix from damaging the first electrode 120 and / or the second electrode 130 located on the inner wall surface of the accommodating cavity 1111.

[0045] Here, the shape of the base 111 may be a hollow tube. Furthermore, in the first embodiment, the body 111 is a hollow cylinder, and the containing cavity 1111 is cylindrical. The thickness of the side wall of the base 111 is fixed, so that the heating element 110 can uniformly heat the aerosol-generating matrix. The first connecting portion 121 and the second connecting portion 131 both extend in the circumferential direction of the base 111 and have an arc shape. Preferably, the first connecting portion 121 and the second connecting portion 131 have the same length and are located at the same height along the axial direction of the base 111.

[0046] The first electrode 120 and the second electrode 130 are provided on the inner surface 110b of the base 111, the base 111 having opposing first and second ends 110c and 110d, and the first connecting portion 121 and the second connecting portion 131 are provided at a distance from each other at the same end of the inner surface 110b of the receiving cavity 1111. The base 111 may be made of a heat-resistant insulating material such as quartz glass, ceramic, or mica, which can prevent the first electrode 120 and the second electrode 130 from shorting out. If the base is made of quartz glass, quartz glass with a transparency of 80% or more can be selected.

[0047] When energized, the infrared heating layer 112 generates infrared waves to heat the aerosol generating matrix. Specifically, the infrared heating layer 112 may be surrounded by the inner surface 110b of the receiving cavity 1111 and connected to the first electrode 120 and the second electrode 130, respectively. After the first electrode 120 and the second electrode 130 are energized, a current flows through the infrared heating layer 112 located between the first electrode 120 and the second electrode 130, generating infrared rays. The infrared heating layer 112 may be a metal layer, a conductive ceramic layer, or a conductive carbon layer. The infrared heating layer 112 may be in the form of a continuous film, a porous mesh, or a stripe. The material, shape, and size of the infrared heating layer 112 can be determined as needed.

[0048] Here, the infrared heating layer 112 is installed on the inner surface 110b of the substrate 111, which means that the distance between the infrared heating layer 112 and the aerosol-generating matrix is ​​smaller than in the case where the infrared heating layer 112 is installed on the outer surface 110a of the substrate 111. In addition, the infrared waves generated by the infrared heating layer 112 do not need to be conducted through the side wall of the substrate 111, but can directly heat the aerosol-generating matrix. This effectively avoids the problem of heat loss caused by infrared rays passing through the side wall of the substrate 111, and effectively improves the heat transfer efficiency of the infrared heating layer 112 to the aerosol-generating matrix.

[0049] In a specific embodiment, the infrared heating layer 112 may be an infrared heating film. When the infrared heating film is energized, it emits infrared rays, thereby heating the aerosol-generating matrix in the receiving cavity 1111. As can be seen, when the infrared heating film is energized, the infrared rays emitted from the infrared heating film can directly heat the aerosol-generating matrix in the receiving cavity 1111 without passing through the side wall of the substrate 111, thereby improving the efficiency of infrared radiation. Due to the characteristics of the heated aerosol-generating matrix, the heating temperature usually needs to be 350°C or higher, and the extreme value of the energy radiation is mainly in the 3-5 μm range.

[0050] However, some of the infrared rays generated by the infrared heating film are radiated toward the outside of the substrate 111, and the infrared waves generated by the infrared heating film cannot be fully utilized. To solve this problem, in one embodiment, the heating assembly 100 further includes an infrared reflective layer 140. The infrared reflective layer 140 is attached to the outer surface 110a of the substrate 111 and is used to reflect the infrared rays emitted from the infrared heating film. Specifically, the infrared reflective layer 140 is used to reflect the infrared rays radiated toward the outside of the substrate 111 by the infrared heating film, so that this portion of the infrared rays can be reflected back into the substrate 111 and the aerosol-generating matrix can be heated by the infrared radiation, thereby effectively improving the heating efficiency of the infrared heating film.

[0051] In one embodiment, the infrared reflective layer 140 may be disposed over the entire outer surface 110a of the substrate 111, or may be disposed over only a portion of the outer surface 110a of the substrate 111. In a specific embodiment, at least a portion of the infrared reflective layer 140 is positioned opposite the infrared heating film to reflect infrared rays emitted from the infrared heating film.

[0052] Specifically, the infrared reflective layer 140 may be a high temperature resistant infrared reflective film that is applied to the outer surface 110 a of the substrate 111 .

[0053] As shown in Figures 4, 5 and 6, Figure 4 provides a structural schematic diagram of the heating assembly 100 in the second embodiment, Figure 5 is a cross-sectional structural schematic diagram of the heating assembly 100 in Figure 4 along the BB direction, and Figure 6 is a structural schematic diagram of the outer wall extending along the axial direction of the heating assembly 100 in Figure 4.

[0054] In one embodiment, the heating element 110 may further include a restricting member 113. The restricting member 113 is provided on the base 111 and is used to restrict the radial displacement of the aerosol-generating matrix so that, when the aerosol-generating matrix is ​​inserted into the receiving cavity 1111, a gap is formed between the outer surface 110a of the aerosol-generating matrix and the inner surface 110b of the receiving cavity 1111, thereby forming an airway between the aerosol-generating matrix and the receiving cavity 1111, and making it easy to adjust the resistance to drawing of the aerosol-generating matrix.

[0055] In one embodiment, the restricting member 113 may be disposed at one end of the base 111 having the opening 11111, and define a restricting opening 1131. The restricting opening 1131 communicates with the receiving cavity 1111, and the diameter of the restricting opening 1131 is smaller than the inner diameter of the receiving cavity 1111. The aerosol-generating matrix is ​​specifically received in the receiving cavity 1111 through the restricting opening 1131, thereby positioning the aerosol-generating matrix in the receiving cavity 1111 by the restricting opening 1131. In this case, to easily adjust the resistance to drawing of the aerosol-generating matrix, a gap is left between the outer surface 110a of the aerosol-generating matrix and the inner surface 110b of the receiving cavity 1111, forming an airway between the aerosol-generating matrix and the receiving cavity 1111.

[0056] Specifically, in this embodiment, the diameter of the restrictive opening 1131 may be larger than the outer diameter of the aerosol-generating matrix, so that the aerosol-generating matrix can be smoothly inserted into or removed from the accommodating cavity 1111 through the restrictive opening 1131.

[0057] Specifically, the material of the restricting member 113 may be the same as the material of the base 111. The restricting member 113 is integrally formed with the base 111, thereby simplifying the manufacturing process of the heating element 110. Of course, the material of the restricting member 113 does not have to be the same as the material of the base 111.

[0058] In one embodiment, the center of the restricting opening 1131 and the central axis of the receiving cavity 1111 are aligned on the same line, so that when the aerosol-generating matrix is ​​restricted in the radial direction of the receiving cavity 1111 by the restricting opening 1131 in the receiving cavity 1111, the distance between the outer wall of the aerosol-generating matrix and the inner wall of the receiving cavity 1111 is the same everywhere. This allows the infrared heating layer 112 installed on the inner wall of the receiving cavity 1111 to heat the aerosol-generating matrix uniformly in the circumferential direction, which helps to distribute heat uniformly during the heating process of the aerosol-generating matrix.

[0059] In one embodiment, as shown in Figure 7, Figure 7 is a cross-sectional structural schematic diagram illustrating the insertion of an aerosol-generating matrix into the heating assembly 100. The restricting member 113 is provided on the end surface of the base 111, which has the opening 11111. In this embodiment, the restricting opening 1131 defined by the restricting member 113 is distinct from the opening 11111 of the accommodating cavity 1111 and can be located above the opening 11111 of the accommodating cavity 1111. When the aerosol-generating matrix is ​​inserted into the accommodating cavity 1111, the aerosol-generating matrix enters the accommodating cavity 1111 sequentially through the restricting opening 1131 and the opening 11111 of the accommodating cavity 1111. Of course, in this embodiment, the restricting member 113 can be extended at an angle toward the interior of the accommodating cavity 1111, thereby defining the restricting opening 1131 at the opening 11111 of the accommodating cavity 1111. As can be seen, in this embodiment, the restricting member 1131 is an opening of the receiving cavity 1111 .

[0060] 4 and 5, the restricting member 113 may be installed on the inner surface 110b of the receiving cavity 1111 and positioned at the end of the receiving cavity 1111. Specifically, in this embodiment, the upper end surface of the restricting member 113 is flush with the upper end surface of the side wall of the base 111 and defines and forms the opening 11111 of the receiving cavity 1111. As can be understood, in this embodiment, the opening 11111 is located in the same plane as the limiting opening 1131, and the limiting opening 1131 defined and formed by the restricting member 113 is the opening 11111 of the receiving cavity 1111.

[0061] In one embodiment, the restricting member 113 may include convex rings extending at intervals along the circumferential direction of the receiving cavity 1111. As shown in Fig. 4, the convex rings may be installed on the inner wall surface of the receiving cavity 1111 and may be installed around the inner wall surface of the receiving cavity 1111. In this embodiment, a hollow area of ​​the convex rings away from the inner wall surface of the receiving cavity 1111 is formed as a restricting port 1131.

[0062] In another embodiment, the restricting member 113 may include a plurality of protrusions spaced apart along the circumferential direction of the accommodating cavity 1111. Preferably, the plurality of protrusions are disposed on the base 111 at equal intervals along the circumferential direction of the accommodating cavity 1111, thereby enabling the restricting member 113 to effectively position the aerosol-generating matrix in a plurality of radial directions. Furthermore, the plurality of protrusions have the same height in the axial direction of the accommodating cavity 1111, so that the restriction openings 1131 are formed at the same axial height of the accommodating cavity 1111.

[0063] Specifically, the shape of the limiting member 113 may be annular, arc-shaped, dot-shaped, block-shaped, strip-shaped, etc. For example, two arc-shaped strip structures may be equally spaced on the inner surface 110b of the receiving cavity 1111, or three block-shaped structures may be equally spaced on the end surface of the first end 110c of the base 111, and the limiting member 1131 is formed on the first end 110c of the base 111. The number, shape, structure, and installation position of the limiting member 113 are not limited to the several methods mentioned above.

[0064] For example, when there are multiple restricting members 113, the multiple restricting members 113 may be provided simultaneously at one end of the base 111, or at opposite ends of the base 111, or the multiple restricting members 113 may be distributed axially inside the accommodating cavity 1111. For example, there may be two restricting members 113, with one restricting member 113 provided at the first end 110c of the base 111 and the other restricting member 113 provided at the second end 110d of the base 111, thereby forming two restricting openings 1131 at the two ends of the base 111, and the opposite ends of the aerosol-generating matrix being positioned by the restricting members 1131.

[0065] The circuit pattern on the inner wall of the receiving cavity 1111 can be designed in various forms as needed. In one embodiment, as shown in FIG. 8, FIG. 8 is a structural schematic diagram of the outer wall of the heating assembly 100 of the third embodiment, extending in its axial direction. Here, the first connecting portion 121 is annular, extends along the circumferential direction of the heating element 110, and has a notch 1211, i.e., the first connecting portion 121 does not form a closed loop in the circumferential direction. The second connecting portion 131 is located near the first connecting portion 121, away from the end face of the first end portion 110c, so that the negative lead can be connected to the second connecting portion 131 through the notch 1211. The first connecting portion 121 forms the notch 1211, so that the negative lead can be connected to the second connecting portion 131 without contacting the first connecting portion 121, preventing the negative lead from contacting the first connecting portion 121 and causing a short circuit and facilitating wiring.

[0066] FIG. 8 shows three types of positional relationships between the first connecting portion 121 and the second connecting portion 131. When the second electrode 130 is in position a, the second connecting portion 131 is completely misaligned with the notch 1211 along the axial direction of the heating element 110. When the second electrode 130 is in position b, the second connecting portion 131 and the notch 1211 are located directly opposite each other in the axial direction of the heating element 110. When the second electrode 130 is in position c, the second connecting portion 131 is partially misaligned with the notch 1211 along the axial direction of the heating element 110. When the second electrode 130 is located in position b, the conductor is easily connected to the second connecting portion 131 via the notch 1211, making the wiring path for the conductor simpler.

[0067] 3 , the first and second connecting portions 121 and 131 can both be considered to be annular structures with notches. Here, the first connecting portions 121 are disposed in the notches of the second connecting portions 131, or the second connecting portions 131 are disposed in the notches of the first connecting portions 121. For example, all of the second connecting portions 131 are exposed by the notches 1211 in the axial direction of the heating element 110, and the second connecting portions 131 are located in the notches 1211 and are at the same height as the first connecting portions 121 in the axial direction of the heating element 110. Furthermore, the first and second connecting portions 121 and 131 are flush with the end surface of the first end 110c of the heating element 110. As a result, the positive and negative leads can be directly connected to the first and second connecting portions 121 and 131, which simplifies the wiring path of the conductors and simplifies the wiring scheme of the heating assembly 100.

[0068] 3 , in one embodiment, the first electrode 120 further includes at least one first extension portion 122. One end of the first extension portion 122 is connected to the first connection portion 121, and the other end of the first extension portion 122 extends from the first connection portion 121 toward the second end 110d of the heating element 110. The second electrode 130 further includes at least one second extension portion 132. One end of the second extension portion 132 is connected to the second connection portion 131, and the other end of the second extension portion 132 extends from the second connection portion 131 toward the second end 110d of the heating element 110. The first extension portion 122 and the second extension portion 132 may extend to a position close to the second end 110d, or may extend to the end face of the second end 110d. Here, the first extension 122 and the second extension 132 are used to form or define at least one heating region in the infrared heating layer 112. The first extension 122 and the second extension 132 are spaced apart, and the infrared heating layer 112 between adjacent first extensions 122 and second extensions 132 forms one heating region. After the first electrode 120 and the second electrode 130 are energized, current flows through the heating region between the first extension 122 and the second extension 132, causing the heating region to heat up and the aerosol-generating matrix. The material of the first connection 121 may be the same as the material of the first extension 122. The first connection 121 and the first extension 122 may be formed at the same time by printing or deposition. The material of the second connection 131 and the second extension 132 may be the same. The second connection 131 and the second extension 132 may be formed at the same time by printing or deposition. In this application, the difference between the connection portion and the extension portion is that the dimensions of the connection portion can be larger than the dimensions of the extension portion to facilitate welding or adhesive fixing to an external connection lead.

[0069] The extension paths of the first extension portion 122 and the second extension portion 132 may be linear, bent, curved, or irregular. The extension directions of the first extension portion 122 and the second extension portion 132 may be along the axial direction, at any angle relative to the axial direction, or spirally along the circumferential direction.

[0070] In one embodiment, the first extension 122 and the second extension 132 are parallel, both extend along the axial direction of the heating element 110, and both have a linear structure, which makes the shape of the heating region between the first extension 122 and the second extension 132 regular and is advantageous for uniform current distribution between the first extension 122 and the second extension 132, so that the aerosol generating matrix is ​​uniformly heated in each heating region.

[0071] In the first embodiment, the first connecting portion 121 and the second connecting portion 131 are uniformly arranged along the circumferential direction at the first end 110c of the base 111. The number of each of the first extending portion 122 and the second extending portion 132 may be one. One end of the first extending portion 122 is provided at the center of the first connecting portion 121, and the other end of the first extending portion 122 extends to the end face of the second end 110d of the base 111. One end of the second extending portion 132 is provided at the center of the second connecting portion 131, and the other end of the second extending portion 132 extends to the end face of the second end 110d of the base 111. The first extending portion 122 and the second extending portion 132 are provided at opposite ends of the same diameter of the cylindrical base 111, spaced apart, and both extend along the axial direction of the heating element 110, and may both be linear structures. In other embodiments, the first extension 122 and / or the second extension 132 may have a curved structure as long as they do not intersect, and the present application is not limited thereto. Specifically, the first extension 122 and the second extension 132 are uniformly distributed along the circumferential direction, and the infrared heating layer 112 is divided into two heating regions of the same shape and size, so that the aerosol-generating matrix can be uniformly heated by the two heating regions. After the first electrode 120 and the second electrode 130 are energized, current flows in two opposite directions from the first extension 122 to the second extension 132, causing the two heating regions to heat up, thereby heating the aerosol-generating matrix. The circuit distribution of such a heating assembly is simple and realizes a same-end connection method, thereby heating The assembly has a simple wiring path, reducing manufacturing costs and difficulty.

[0072] In one embodiment, referring to FIG. 9, FIG. 9 provides a structural schematic diagram of the outer wall of the heating assembly 100 of the fourth embodiment, extending in its axial direction. The second electrode 130 further includes a third connection portion 133, which is used to connect to the negative lead. The third connection portion 133 is provided at the second end 110d of the heating element 110 and is connected to the second extension portion 132. The third connection portion 133 may extend circumferentially along the second end 110d of the heating element 110 to form a closed ring, a ring with a notch, or an arc-shaped structure. When connected, the positive lead may be connected to the first connection portion 121 at the first end 110c, and the negative lead may be connected to the second connection portion 131 at the first end 110c or the third connection portion 133 at the second end 110d. Thus, by providing the third connection portion 133, the heating assembly 100 can achieve both single-sided and double-sided connections. The heating assembly 100 provides multiple wiring methods, allowing users to select the connection method of the heating assembly 100 as needed. In another embodiment, the first electrode 120 may include a third connection portion 133, which is used to connect to a positive lead; heating The assembly can also provide single-sided and double-sided connection functions.

[0073] In one embodiment, at least one of the first connecting portion 121, the second connecting portion 131, and the third connecting portion 133 is disposed at a distance from the infrared heating layer 112 of the heating element 110. When the infrared heating layer 112 is connected to at least one of the first connecting portion 121, the second connecting portion 131, and the third connecting portion 133, a part of the current flows from the first connecting portion 121 to the second extending portion 132, or from the first extending portion 122 to the second connecting portion 131, or from the first extending portion 122 to the third connecting portion 133, resulting in an irregular current direction within the heating region and non-uniform heat generation in the heating region. Preferably, the first connecting portion 121, the second connecting portion 131, and the third connecting portion 133 are spaced apart from the infrared heating layer 112 of the heating element 110 to restrict the current flow direction in the heating region to the circumferential direction, thereby regularizing the current flow direction in the heating region, resulting in more uniform heat generation in the heating region and more uniform heating of the aerosol-generating matrix. Furthermore, the edge of the infrared heating layer 112 is flush with the end of the first extending portion 122 near the second end 110d. The first extending portion 122 completely divides the infrared heating layer 112 into two spaced-apart heating regions of the same shape and area, thereby regularizing the current flow direction in the heating region. It can be seen that, without the third connecting portion 133, the first connecting portion 121 and the second connecting portion 131 would be spaced apart from the infrared heating layer 112 of the heating element 110 and would be the same distance from the infrared heating layer 112 of the heating element 110.

[0074] In one embodiment, referring to FIG. 10 , FIG. 10 provides a structural schematic diagram of the outer wall of the heating assembly 100 of the fifth embodiment, which extends in its axial direction. The first electrode 120 includes a plurality of first extensions 122 connected to a first connection 121, and the second electrode 130 includes a plurality of second extensions 132 connected to a second connection 131. Adjacent first extensions 122 and second extensions 132 are spaced apart, forming a heating region between the adjacent first extensions 122 and second extensions 132. Furthermore, the plurality of first extensions 122 and the plurality of second extensions 132 are alternately spaced apart, thereby dividing the infrared heating layer 112 in the circumferential direction to form an even number of heating regions, each of which occupies a portion of the infrared heating layer 112.

[0075] When the number of first extensions 122 and second extensions 132 is the same, the first extensions 122 and second extensions 132 are alternately spaced apart, thereby fully utilizing the infrared heating layer 112 and dividing it into an even number of heating regions for heating the aerosol-generating matrix. When the number of first extensions 122 and second extensions 132 is different, two first extensions 122 or two second extensions 132 may be adjacent, and the electrodes of two adjacent first extensions 122 and two adjacent second extensions 132 may have the same polarity, preventing current from flowing between them. This means that no heating region can be formed between two adjacent first extensions 122 or two adjacent second extensions 132, and therefore the infrared heating layer 112 cannot be fully utilized. As a result, when the number of first extension portions 122 and second extension portions 132 is the same, the first extension portions 122 and the second extension portions 132 are installed alternately at intervals, thereby making full use of the infrared heating layer 112 and avoiding a situation where part of the infrared heating layer 112 cannot form a heating area.

[0076] Furthermore, the distance between any adjacent first extension portions 122 and second extension portions 132 is the same, and the first extension portions 122 and second extension portions 132 are extended axially and linearly, so that the plurality of first extension portions 122 and the plurality of second extension portions 132 are uniformly distributed circumferentially on the outer surface 110a of the heating element 110, and the shapes and sizes of the heat-generating regions between adjacent first extension portions 122 and second extension portions 132 are identical, and the equivalent resistance of each heat-generating region is the same. As a result, the amount of heat released from each heat-generating region after energization is approximately the same, and each heat-generating region can heat the aerosol-generating matrix uniformly in each direction.

[0077] When the number of the first extensions 122 and the second extensions 132 is plural, the second electrode 130 includes a third connection portion 133. The first connection portion 121 is connected to the positive electrode lead and is also used to connect the plural first extensions 122. The third connection portion 133 is connected to the negative electrode lead and is also used to connect the plural second extensions 132. That is, the first electrode 120 and the second electrode 130 form a tooth-shaped electrode. Preferably, the third connection portion 133 is connected to each second extension 132, and the third connection portion 133 is Heating element The second end 110d of the heater 110 is formed in a ring shape, so that each of the heat generating regions can be energized and operated.

[0078] In the fifth embodiment, the number of first extensions 122 and second extensions 132 is two. The two first extensions 122 are located at both ends of the first connection portion 121. One second extension 132 is connected to the second connection portion 131 and the third connection portion 133, respectively, and the other second extension 132 is located between the two first extensions 122 and connected only to the third connection portion 133. The third connection portion 133 is ring-shaped and is located at the second end 110d of the heating element 110, and is connected to two second extensions 132, respectively. The two first extensions 122 and the two second extensions 132 are alternately located at intervals, extend along the axial direction of the heating element 110, and are linear. The two first extensions 122 and the two second extensions 132 are uniformly distributed in the circumferential direction, and the infrared heating layer 112 is divided into four heating regions of the same shape and size, so that the four heating regions can uniformly heat the aerosol-generating matrix. Compared to a heating assembly 100 in which the infrared heating layer 112 is divided into two heating regions by a circuit, the heating assembly 100 with four heating regions has a smaller equivalent resistance and a larger heating power, thereby improving the heating efficiency of the heating assembly 100 for the aerosol-generating matrix.

[0079] 11, which provides a structural schematic diagram of the outer wall of the heating assembly 100 according to the sixth embodiment, extending in its axial direction. In the sixth embodiment, there is only one first extension 122 and one second extension 132. The first extension 122, the second extension 132, and the infrared heating layer 112 all extend spirally along the circumferential direction of the heating element 110, extending from the first end 110c to the second end 110d of the heating element 110.

[0080] The first extending portion 122 and the second extending portion 132 extend spirally from the first end 110c to the second end 110d of the heating element 110, so that both ends of the first extending portion 122 can be used as the first connecting portion 121, and both ends of the second extending portion 132 can be used as the second connecting portion 131. Alternatively, the first connecting portion 121 and the second connecting portion 131 are provided at both the first end 110c and the second end 110d, and the first connecting portion 121 is connected to one end of the first extending portion 122, and the second connecting portion 131 is connected to one end of the second extending portion 132.

[0081] Here, the infrared heating layer 112 is located between the first extension 122 and the second extension 132, and forms a spiral heating region. Preferably, the spiral extension directions of the first extension 122 and the second extension 132 are the same, the distances between the first extension 122 and the second extension 132 are the same, and the first extension 122 and the second extension 132 are uniformly distributed on the outer surface 110a of the heating element 110, so that the infrared heating layer 112 can uniformly heat the aerosol-generating matrix.

[0082] In one embodiment, as shown in FIGS. 12 and 13 , the heating element 110 includes multiple sub-heating elements 114, which can be joined together to form a single heating element 110. Electrodes are provided on the inner surfaces 110b of the multiple sub-heating elements 114, and after joining the multiple sub-heating elements 114, the electrodes of the multiple sub-heating elements 114 can be joined to form a circuit for the heating element 110. The heating element 110 may include multiple sub-heating elements 114 having the same size and shape, or multiple sub-heating elements 114 having different sizes and shapes. When the heating element 110 is a hollow cylinder, the shapes of the multiple sub-heating elements 114 may be multiple hollow arcs. 12 provides a structural schematic diagram of the sub-heating element 114. In this embodiment, the sub-heating element 114 has a hollow semi-cylindrical shape, and two hollow semi-cylindrical sub-heating elements 114 can be joined to form one complete hollow cylindrical heating element 110.

[0083] In the present application, the first electrode 120, the second electrode 130, and the infrared heat generating layer 112 are all disposed on the inner surface 110b of the base 111. heating During the assembly process, it is inconvenient to apply the electrodes and infrared heating layer 112 to the receiving cavity 1111 from the outside. Therefore, the heating element 110 needs to be divided into multiple sub-heating elements 114, and the electrodes and infrared heating layer 112 are applied to each sub-heating element 114, and finally, the sub-heating elements 114 are joined to form the complete heating element 110.

[0084] Specifically, a first sub-connection portion 123 and / or a second sub-connection portion 134 is provided on the inner surface 110b of each sub-heating element 114. The first sub-connections 123 on the plurality of sub-heating elements 114 are joined to form the first connection portion 121, and the second sub-connections 134 on the plurality of sub-heating elements 114 are joined to form the second connection portion 131. Preferably, the first sub-connection portion 123 and the second sub-connection portion 134 are provided on the inner surface 110b of each sub-heating element 114, and the first sub-connection portion 123 and the second sub-connection portion 134 of the same sub-heating element 114 are electrically connected to the infrared heating layer 112 of the sub-heating element 114 by extension portions, respectively, so that the infrared heating layer 112 of each sub-heating element 114 can operate independently. That is, not only can the aerosol-generating matrix be heated as a whole after the multiple sub-heating elements 114 are joined together, but the multiple sub-heating elements 114 can also be used independently as heating elements 110 without being joined together, and can heat the aerosol-generating matrix after being energized. When the multiple sub-heating elements 114 are used independently as heating elements 110 to heat the aerosol-generating matrix, multiple sets of positive and negative electrode leads can be used, and the multiple sets of positive and negative electrode leads can be connected to the first sub-connection part 123 and the second sub-connection part 134 of each sub-heating element 114, respectively.

[0085] 13, which is a schematic diagram of the sidewall expansion structure of a heating element 110 formed by joining two sub-heating elements 114 shown in FIG. 11 according to the seventh embodiment. Here, the heating element 110 includes a first sub-heating element 115 and a second sub-heating element 116, and both the first sub-heating element 115 and the second sub-heating element 116 have a hollow semi-cylindrical shape. After the first sub-heating element 115 and the second sub-heating element 116 are joined together, a single hollow cylindrical heating element 110 can be formed. A first sub-connecting portion 123, a second sub-connecting portion 134, a first extending portion 122, and two second sub-extending portions 1321 are provided on the inner surface 110b of the first sub-heating element 115 and the inner surface 110b of the second sub-heating element 116. The adjacent second sub-extensions 1321 on the first sub-heating element 115 and the adjacent second sub-extensions 1321 on the second sub-heating element 116 form one second extension 132, and the two second sub-extensions 1321 on the first sub-heating element 115 and the two second sub-extensions 1321 on the second sub-heating element 116 form two second extensions 132. A heating region is formed between the adjacent first extension 122 and the adjacent second sub-extension 1321, so that both the first sub-heating element 115 and the second sub-heating element 116 can heat the aerosol-generating matrix when energized.

[0086] Furthermore, a third sub-connection portion 1331 is provided on the inner surface 110b of the first sub-heating element 115 and the inner surface 110b of the second sub-heating element 116, and the third sub-connection portion 1331 is connected to the two second sub-extensions 1321 of the same sub-heating element 114. The third sub-connection portions 1331 on each sub-heating element 114 are joined to form the third connection portion 133. By providing the third sub-connection portion 1331, the circuit on each sub-heating element 114 can achieve both single-sided and double-sided connections. The heating assembly 100 provides multiple wiring methods, allowing the connection method of the heating assembly 100 to be selected as needed.

[0087] In one embodiment, the heating assembly 100 may further include a first conductive elastic piece, a second conductive elastic piece, and a third conductive elastic piece. Preferably, the first conductive elastic piece, the second conductive elastic piece, and the third conductive elastic piece are all installed at the junctions of the plurality of sub-heating elements 114.

[0088] In the process of joining the sub-heating elements 114, poor contact between the electrodes of the sub-heating elements 114 may occur. However, by providing the first conductive elastic piece, the second conductive elastic piece, and the third conductive elastic piece, the electrodes on the different sub-heating elements 114 can be electrically connected. heating The assembly is operable to heat the aerosol-generating matrix.

[0089] The first conductive elastic piece is disposed on the inner surface 110b of the heating element 110 and is electrically connected to the first sub-connecting portions 123 on each sub-heating element 114. There may be a plurality of first conductive elastic pieces, and each first conductive elastic piece is connected to two adjacent first sub-connecting portions 123. Specifically, the first conductive elastic piece contacts and connects to the first sub-connecting portions 123 on each sub-heating element 114, thereby electrically connecting the first sub-connecting portions 123 on each sub-heating element 114. Alternatively, the first conductive elastic piece may contact and connect to the first extension portions 123 on each sub-heating element 114, thereby electrically connecting the first sub-connecting portions 123 on each sub-heating element 114.

[0090] The second conductive elastic piece is disposed on the inner surface 110b of the heating element 110 and communicates with the second sub-connecting portions 134 on each sub-heating element 114. There may be a plurality of second conductive elastic pieces, and each second conductive elastic piece is connected to two adjacent first sub-connecting portions 123. Specifically, the second conductive elastic piece contacts and connects with the second sub-connecting portions 134 on each sub-heating element 114, thereby electrically connecting the second sub-connecting portions 134 on each sub-heating element 114. Alternatively, 2The conductive elastic piece can be in contact with and connected to the second sub-extension portion 1321 on each sub-heating element 114, thereby electrically connecting the second sub-connection portion 134 on each sub-heating element 114.

[0091] In one embodiment, the third conductive elastic pieces are installed on the inner surface 110b of the heating element 110 and connected to the third sub-connections 1331 on each of the sub-heating elements 114, thereby communicating and electrically connecting the second sub-connections 134 on each of the sub-heating elements 114. There may be multiple third conductive elastic pieces, and each third conductive elastic piece is connected to two adjacent third sub-connections 1331.

[0092] In one embodiment, as shown in Figure 14, Figure 14 is a structural schematic diagram of a heating assembly 100 of an eighth embodiment. The heating assembly 100 further includes a fixing mechanism 150. The fixing mechanism 150 is fitted to the outer wall of the heating element 110 and is used to fix and position the multiple sub-heating elements 114. At the same time, the fixing mechanism 150 can also join the multiple sub-heating elements 114 to form the heating element 110, thereby heating The assembly can function normally.

[0093] In one embodiment, the fixing mechanism 150 further includes a first fixing member 151 and a second fixing member 152. The first fixing member 151 is fitted over the first ends 110c of the sub-heating elements 114 to fix the first ends 110c of the sub-heating elements 114. The second fixing member 152 is fitted over the second ends 110d of the sub-heating elements 114 to fix the second ends 110d of the sub-heating elements 114. The first fixing member 151 and the second fixing member 152 may have limiting grooves, and the first ends 110c of the sub-heating elements 114 are respectively fitted into the limiting grooves of the first fixing member 151, and the second ends 110d of the sub-heating elements 114 are respectively fitted into the limiting grooves of the second fixing member 152, thereby positioning the sub-heating elements 114.

[0094] 14, the first fixing member 151 is a cylindrical upper cover, and the second fixing member 152 is a cylindrical base. The heating element 110 includes two sub-heating elements 114, and the upper cover is fitted onto one end of the two sub-heating elements 114, and the base is fitted onto the other end of the two sub-heating elements 114, thereby fixing the two sub-heating elements 114 to the upper cover and the base. Furthermore, the upper cover and the base position the two sub-heating elements 114, and the two sub-heating elements 114 are joined to form a single heating element 110, which can heat the aerosol-generating matrix after the heating element 110 is energized.

[0095] 14, the fixing mechanism 150 further has a through-hole 153, the diameter of which is smaller than the inner diameter of the accommodating cavity 1111 of the heating element 110. That is, the fixing mechanism 150 further functions as a restricting member 113 to position the aerosol-generating matrix in the accommodating cavity 1111, thereby forming a gap between the outer surface 110a of the aerosol-generating matrix and the inner surface 110b of the accommodating cavity 1111, forming an airway between the aerosol-generating matrix and the accommodating cavity 1111, and reducing the suction resistance of the aerosol-generating matrix. of It becomes easier to adjust.

[0096] 15 is a structural schematic diagram of an aerosol generating device 200 according to one embodiment of the present application. The present application also provides an aerosol generating device 200. The aerosol generating device 200 can include a heating assembly 100 and a power supply assembly 230.

[0097] Here, the heating assembly 100 may specifically be the heating assembly 100 according to any of the above embodiments, and its specific structure and function may refer to the relevant description of the heating assembly 100 in the above embodiments, and the same or similar technical effects may be achieved, so the description will be omitted here.

[0098] Here, the aerosol generating device 200 may further include a housing 210 and a mounting seat 220. The mounting seat 220 is used to fix the heating assembly 100 to the housing 210. Specifically, za 220 includes a mounting body, with a through-hole 153 formed in the mounting body, and the heating assembly 100 is inserted into the through-hole 153 and mounted on the mounting seat 220. In a specific embodiment, a recess may be further formed in the side wall of the through-hole 153, and the positive and negative electrode leads specifically extend into the mounting seat 220 through the recess to be connected to the first electrode 120 and the second electrode 130 on the heating element 110, which are located away from the mounting seat 220. Furthermore, at least two locking portions are formed on the mounting body, and the mounting seat 220 specifically is fixed to the housing 210 of the aerosol generating device by the locking portions.

[0099] Here, the aerosol generating device 200 may further include a controller (not shown), which is connected to the heating assembly 100 and the power supply assembly 230, and is used to control the power supply assembly 230 to supply power to the heating assembly 100 after receiving an activation signal, and to control the heating power, heating time, etc. of the heating assembly 100.

[0100] Here, the power supply assembly 230 is connected to the heating assembly 100 and is used to supply power to the heating assembly 100. In one embodiment, the power supply assembly 230 may specifically include a rechargeable lithium-ion battery.

[0101] The aerosol generating device 200 provided by this embodiment includes a heating assembly 100. The heating assembly 100 has a first connector 121 for connecting to a positive lead and a second connector 131 for connecting to a negative lead, which are located at the same end of the outer surface 110a of the heating element 110. This allows the positive lead and the negative lead to be connected at the same end of the heating element 110, eliminating the need to wire the positive lead or the negative lead to the other end to communicate with the corresponding electrode. Compared to a solution in which the first connector 121 and the second connector 131 are located at two opposite ends of the outer wall of the heating element 110, requiring the positive lead and the negative lead to be connected to two ends, this not only significantly simplifies the wiring path of the leads, but also reduces the length of the leads, effectively reducing manufacturing costs and difficulty.

[0102] The above are only some of the embodiments of the present application and do not limit the patent scope of the present application. Any equivalent device or equivalent process conversion made by using the contents of the specification and drawings of the present application, or any directly or indirectly applicable to other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating assembly including a heating element, a first conductive electrode, and a second conductive electrode, the heating element contains an aerosol-generating matrix and is used to heat the aerosol-generating matrix when energized; The first electrode is disposed on an inner surface of the heating element, and the first electrode has a first connection portion; a heating assembly characterized in that the second electrode and the first electrode are installed on an inner surface of the heating element with a gap between them, the second electrode has a second connection portion, the first connection portion and the second connection portion are located at the same end of the heating element and are connected to a power supply assembly, the first connection portion is annular and extends along the circumferential direction of the heating element and has a notch, and the second connection portion is located at a position of the first connection portion away from an end face of the first end of the heating element.

2. the heating element includes a substrate and an infrared heating layer; the substrate has a receiving cavity and an opening at one end of the receiving cavity, the receiving cavity being adapted to receive an aerosol-generating matrix through the opening, the first electrode and the second electrode both being disposed on an inner surface of the receiving cavity; 2. The heating assembly of claim 1, wherein the infrared heating layer is disposed on the inner surface of the substrate and is connected to the first electrode and the second electrode, respectively, and the infrared heating layer generates infrared waves when energized to heat the aerosol generating matrix.

3. 3. The heating assembly of claim 2, wherein the heating element includes an infrared reflective layer, the infrared reflective layer being disposed on the outer surface of the base and used to reflect infrared rays generated from the infrared heating layer.

4. 2. The heating assembly of claim 1, wherein the heating element includes a plurality of sub-heating elements, each of which has a first sub-connecting portion and / or a second sub-connecting portion on an inner surface thereof, the first sub-connecting portions installed on the plurality of sub-heating elements being joined together to form a first connecting portion, and the second connecting portions installed on the plurality of sub-heating portions being joined together to form a second connecting portion.

5. The heating assembly of claim 4, wherein the first sub-connection portion and the second sub-connection portion are provided on the inner surface of each sub-heating element, and the first sub-connection portion and the second sub-connection portion of the same sub-heating element are each electrically connected to the infrared heating layer of the sub-heating element by an extension portion, so that the infrared heating layer of each sub-heating element operates independently.

6. 5. The heating assembly of claim 4, wherein the heating element includes a first sub-heating element and a second sub-heating element, the first sub-connecting portion, the second sub-connecting portion, a first extension portion, and two second sub-extension portions are provided on both the inner surface of the first sub-heating element and the inner surface of the second sub-heating element, the two second sub-extension portions installed opposite the first sub-heating element and the second sub-heating element form a second extension portion, and one heating region is formed between the adjacent first extension portion and second sub-extension portion so that both the first sub-heating element and the second sub-heating element heat the aerosol-generating matrix when energized.

7. The heating assembly of claim 6, wherein a third sub-connection portion is provided on both the inner surface of the first sub-heating element and the inner surface of the second sub-heating element, and the third sub-connection portion is connected to the two second sub-extension portions of the same sub-heating element.

8. the heating assembly further includes a first conductive elastic piece and a second conductive elastic piece; The heating assembly of claim 4, wherein the first conductive elastic piece is installed on the inner surface of the heating element and electrically connected to the first sub-connection on each of the sub-heating elements, and / or the second conductive elastic piece is installed on the inner surface of the heating element and electrically connected to the second sub-connection on each of the sub-heating elements.

9. The heating assembly of claim 4, further comprising a fixing mechanism, the fixing mechanism being fitted to the outer wall of the heating element and used to fix the plurality of sub-heating elements to form the heating element.

10. 10. The heating assembly of claim 9, wherein the fixing mechanism includes a first fixing member and a second fixing member, the first fixing member being fitted to first ends of the plurality of sub-heating elements and used to fix the first ends of the plurality of sub-heating elements, and the second fixing member being fitted to second ends of the plurality of sub-heating elements and used to fix the second ends of the plurality of sub-heating elements.

11. 2. The heating assembly of claim 1, wherein the heating element has opposing second and first ends, the first connection portion and the second connection portion are both provided at the first end of the heating element, the first electrode further includes at least one first extension portion connected to the first connection portion, the first extension portion extending from the first connection portion toward the second end of the heating element, the second electrode further includes at least one second extension portion connected to the second connection portion, the second extension portion extending from the second connection portion toward the second end of the heating element, and one heating region is formed between adjacent first and second extension portions.

12. The heating assembly according to claim 11, wherein the first extension portion and / or the second extension portion extends along the axial direction of the heating element and is linear.

13. 13. The heating assembly of claim 12, wherein one first extension and one second extension are spaced apart, or a plurality of first extensions and a plurality of second extensions are alternately spaced apart, thereby dividing the heating element to form an even number of heating regions.

14. 13. The heating assembly of claim 12, wherein the distance between any adjacent first extension and second extension is the same.

15. The heating assembly of claim 12, characterized in that the second electrode further includes a third connection portion, which is used to connect to a negative lead, and the third connection portion is installed at a second end of the heating element and connected to at least one of the second extension portions.

16. The heating assembly according to claim 2 , wherein both the first and second connecting portions are spaced apart from the infrared heating layer of the heating element.

17. 3. The heating assembly of claim 2, wherein the heating element further includes a restricting member, the restricting member being provided on the base and used to position the aerosol-generating matrix so that there is a gap between the outer surface of the aerosol-generating matrix and the inner surface of the storage cavity, the restricting member having a restricting port, the restricting port being connected to the storage cavity, and the diameter of the restricting port being smaller than the inner diameter of the storage cavity, and the aerosol-generating matrix being accommodated in the storage cavity through the restricting port.

18. 1. An aerosol generating device comprising a heating assembly and a power assembly, The heating assembly is used to heat the aerosol-generating matrix after energization, the heating assembly being the heating assembly of claim 1 , The aerosol generating device, 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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