JP7760697B2 - Heating assembly and aerosol generating device - Google Patents

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
This application claims priority from Chinese patent application No. 2021108410964, filed on July 23, 2021, the entire contents of which are incorporated herein by reference.

This application relates to the technical field of electronic atomization devices, and more particularly to heating assemblies and aerosol generating devices.

Heated, non-combustion aerosol generators are attracting increasing attention due to their advantages of being safe, convenient, healthy, and environmentally friendly.

Conventional non-combustion aerosol generators typically 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 connected to a positive lead, 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, allowing the power source to power the heating assembly.

However, when using conventional heating assemblies, the wiring paths for the positive and/or negative leads are complex, resulting in high manufacturing costs and difficulty.

In light of this, the present application provides a heating assembly and an aerosol generating device that solves the problems of conventional heating assemblies, such as complex wiring paths for the positive and/or negative leads, high manufacturing costs, and high manufacturing difficulty.

To solve the above technical problems, the present application provides a first technical solution as follows: The present application provides a heating assembly, which includes a heating element, a conductive first electrode, and a conductive second electrode. The heating element contains 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 and has a first connecting portion. 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 portion, where the first connecting portion and the second connecting portion are located at the same end of the heating element and are connected to a power supply assembly.

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

Here, the heating element includes multiple sub-heating elements, each of which has a first sub-connection portion and/or a second sub-connection portion provided on its inner surface, with the first sub-connection portions on the multiple sub-heating elements forming the first connection portion, and the second connection portions on the multiple sub-heating elements forming the second connection portion.

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.

Here, the heating element includes a first sub-heating element and a second sub-heating element, and a first sub-connecting portion, a second sub-connecting portion, a first extension portion, and two second sub-extending 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-extending 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 and second sub-extending portions so that both the first and second sub-heating elements can heat the aerosol-generating matrix when energized.

Here, 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. 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 is 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 is electrically connected to the second sub-connection portion on each sub-heating element.

Here, the heating assembly further includes a fixing mechanism that is fitted into the outer wall of the heating element and is used to fix the multiple sub-heating elements to form the heating element. Here, the fixing mechanism includes a first fixing member and a second fixing member, the first fixing member being fitted into first ends of the multiple heating elements and used to fix the first ends of the multiple sub-heating elements, and the second fixing member being fitted into second ends of the multiple sub-heating elements and used to fix the second ends of the multiple sub-heating elements.

Here, the first connection portion extends along the circumferential direction of the heating element and has a notch.

Here, the second connection portion is positioned at the notch and is at the same height as the first connection portion in the axial direction of the heating element.

Here, the heating element has opposing first and second end portions, the first connection portion and the second connection portion are both provided at the first end portion 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 portion 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 portion of the heating element, and one heating region is formed between adjacent first and second extension portions.

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

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 and forming an even number of heating regions.

Here, the spacing between any adjacent first extension portion and second extension portion is the same.

Here, the first extension portion and the second extension portion extend along the circumferential direction of the heating element and are spiral-shaped, and the heating region is located between one first extension portion and one second extension portion, forming a spiral-shaped heating region.

Here, the extension direction of the first extension section and the extension direction of the second extension section coincide.

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.

Here, both the first and second connection parts are installed at a distance from the infrared heating layer of the heating element.

Here, the first connection portion, second connection portion, and third connection portion are all installed at a distance from the infrared heating layer of the heating element.

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. The restricting member has a restricting opening which communicates with 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 opening.

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 is 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 is electrically connected to the heating assembly and used to supply power to the heating assembly.

In the heating assembly and aerosol generating device provided by this application, the heating assembly has a first connection part for connecting to the positive lead and a second connection part for connecting to the negative lead located at the same end of the inner surface of the heating element, allowing the positive lead and negative lead to be connected to the same end of the heating element, eliminating the need to wire the positive lead or negative lead to the other end to connect to the corresponding electrode. This significantly simplifies the wiring path for the conductors compared to solutions that require wiring the positive lead and negative lead at both ends, thereby reducing the length of the conductors and effectively reducing manufacturing costs and difficulty.

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.
1 is a schematic diagram of the overall structure of a heating assembly provided in a first embodiment of the present application; 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. 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. FIG. 2 is a schematic diagram of the overall structure of a heating assembly according to a second embodiment of the present application; FIG. 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. 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. 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. 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; 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; 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; FIG. 10 is a structural schematic diagram of an outer wall of a heating assembly provided by a sixth embodiment of the present application, the outer wall extending along its axial direction; 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; 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; FIG. 13 is a schematic diagram of the overall structure of a heating assembly according to an eighth embodiment of the present application. 1 is a structural schematic diagram of an aerosol generating device according to one embodiment of the present application.

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the following embodiments are only a part of the embodiments of the present application, and are not all of them. All other embodiments that a person skilled in the art can obtain based on the embodiments of the present application without any inventive efforts fall within the scope of protection of the present application.

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

The terms "first," "second," "third," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance or the number of technical features described. Accordingly, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. 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 relationships, movement situations, etc. between components in a specific position (e.g., as shown in the drawings). If the specific position changes, the directionality changes accordingly. Furthermore, the terms "include," "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 listed steps or units, but may optionally include additional steps or units that are not listed, or may optionally include additional steps or units that are specific to the process, method, product, or apparatus.

As used herein, the term "embodiment" 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. Appearances of such a combination in various places in the specification do not necessarily refer to the same embodiment, nor are they mutually exclusive, separate, 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.

The present application will now be described in detail with reference to drawings and embodiments.

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 taken along line 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.

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 aroma components may be added to the plant leaf substrate. The aerosol-generating matrix may be wrapped in aluminum foil or paper and used together.

Specifically, the heating assembly 100 includes a heating element 110, a first electrode 120, and a second electrode 130.

Here, the heating element 110 is used to house the aerosol-generating matrix, and contains a heat-generating material. The heating element 110 supports the aerosol-generating matrix housed therein and generates heat when energized, thereby heating the aerosol-generating matrix housed therein to form an aerosol for use by the user.

The first electrode 120 is connected to the positive lead, and the second electrode 130 is connected to the negative lead, allowing the heating assembly to receive power supplied from an external power source, thereby energizing the heating element 110 and causing it to generate heat. 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 are 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.

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. Here, 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. Here, the same end of the heating element 110 refers to the first end or the second end of the heating element 110. Specifically, taking 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 as the limit, the portion of the heating element 110 located on one side of the plane is the first end portion 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 portion 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, with the first and second connection portions 121 and 131 spaced apart from each other at the first end 110c of the heating element 110. This allows both the positive and negative electrode leads to be connected to the first and second connection portions 121 and 131, respectively, at the same end of the heating element 110. In other embodiments, the first connection portion 121 may be connected to the negative electrode lead, and the second connection portion 131 may be connected to the positive electrode lead.

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, or the like. 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.

The heating assembly 100 has a first connection part 121 for connecting to the positive lead and a second connection part 131 for connecting to the negative lead located at the same end of the inner surface 110b of the heating element 110, allowing the positive and negative leads to be connected at the same end of the heating element 110, eliminating the need to wire the positive or 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 located at opposite ends of the heating element 110 and the positive and negative leads must be connected at both ends, the wiring path for the conductors can be significantly simplified, the length of the conductors can be reduced, and manufacturing costs and difficulty can be effectively reduced.

The heating element 110 may be made entirely 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.

Here, the base 111 has a receiving cavity 1111, one end of which has an opening 11111. The receiving cavity 1111 is used to receive the 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, thereby allowing the aerosol-generating matrix to 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.

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.

Here, the base body 111 may have a hollow tubular shape. Furthermore, in the first embodiment, the body 111 is a hollow cylinder, and the containing cavity 1111 has a cylindrical shape. The thickness of the side wall of the base body 111 is a fixed value, which allows the heating element 110 to uniformly heat the aerosol-generating matrix. The first connecting portion 121 and the second connecting portion 131 both extend along the circumferential direction of the base body 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 body 111.

The first electrode 120 and the second electrode 130 are provided on the inner surface 110b of the base 111, which has opposing first and second ends 110c and 110d, and the first connection portion 121 and the second connection portion 131 are provided at a distance from each other on the same end of the inner surface 110b of the accommodating cavity 1111. The base 111 may be made of a heat-resistant insulating material such as quartz glass, ceramic, or mica, thereby preventing 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.

When energized, the infrared heating layer 112 generates infrared waves that heat the aerosol-generating matrix. Specifically, the infrared heating layer 112 may be surrounded by the inner surface 110b of the containing 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 stripes. The material, shape, and size of the infrared heating layer 112 can be determined as needed.

Here, the infrared heating layer 112 is installed on the inner surface 110b of the substrate 111. Compared to a solution in which the infrared heating layer 112 is installed on the outer surface 110a of the substrate 111, the distance between the infrared heating layer 112 and the aerosol-generating matrix is smaller, and 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.

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 do not need to pass through the side wall of the substrate 111, but can directly heat the aerosol-generating matrix in the receiving cavity 1111, thereby improving the efficiency of infrared radiation. The infrared heating wavelength is 2.5 μm to 20 μm. 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 energy radiation is mainly in the 3 μm to 5 μm range.

Here, 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, thereby reflecting this portion of the infrared rays back into the substrate 111 and heating the aerosol-generating matrix through infrared radiation, thereby effectively improving the heating efficiency of the infrared heating film.

In one embodiment, the infrared reflective layer 140 may be disposed over the entire outer surface 110a of the substrate 111, or over 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.

Specifically, the infrared reflective layer 140 may be an infrared reflective film that can withstand high temperatures, and the infrared reflective film is applied to the outer surface 110a of the base 111.

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 taken along the B-B direction, and Figure 6 is a structural schematic diagram of the outer wall of the heating assembly 100 in Figure 4 extending along the axial direction.

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 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.

In one embodiment, the restricting member 113 may be installed 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 inhalation 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.

Specifically, in this embodiment, the diameter of the restricting 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 storage cavity 1111 through the restricting opening 1131.

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.

In one embodiment, the center of the restriction opening 1131 and the central axis of the containing cavity 1111 are located on the same straight line, so that when the aerosol-generating matrix is restricted in the radial direction of the containing cavity 1111 by the restriction opening 1131 in the containing cavity 1111, the distance between the outer wall of the aerosol-generating matrix and the inner wall of the containing cavity 1111 is the same everywhere. This allows the infrared heating layer 112 installed on the inner wall of the containing 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.

In one embodiment, as shown in FIG. 7, which 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 in the receiving cavity 1111.

In another embodiment, as shown in Figures 4 and 5, the restricting member 113 can be installed on the inner surface 110b of the accommodating cavity 1111 and positioned at the end of the accommodating 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 accommodating cavity 1111. As can be understood, in this embodiment, the opening 11111 is located in the same plane as the restricting opening 1131, and the restricting opening 1131 defined and formed by the restricting member 113 is the opening 11111 of the accommodating cavity 1111.

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 entire inner wall surface of the receiving cavity 1111. In this embodiment, the hollow area of the convex rings away from the inner wall surface of the receiving cavity 1111 is formed as the restricting port 1131.

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 mounted 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 restricting openings 1131 are formed at the same axial height of the accommodating cavity 1111.

Specifically, the shape of the restricting member 113 may be annular, arc-shaped, dot-shaped, block-shaped, strip-shaped, etc. For example, two arc-shaped strip structures may be installed at equal intervals on the inner surface 110b of the accommodating cavity 1111, or three block-shaped structures may be installed at equal intervals on the end surface of the first end 110c of the base 111, and a restricting member 1131 may be formed on the first end 110c of the base 111. The number, shape, structure, and installation position of the restricting members 113 are not limited to the several methods mentioned above.

For example, if there are multiple restricting members 113, the multiple restricting members 113 may be simultaneously provided at one end of the base 111, or may be provided 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 installed at the first end 110c of the base 111 and the other restricting member 113 installed 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.

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, which 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.

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

In one embodiment, as shown in FIG. 3 , the first connecting portion 121 and the second connecting portion 131 can both be considered to be annular structures with notches. Here, the first connecting portion 121 is disposed in the notch of the second connecting portion 131, or the second connecting portion 131 is disposed in the notch of the first connecting portion 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 the same height as the first connecting portions 121 in the axial direction of the heating element 110. Furthermore, the first connecting portions 121 and the second connecting portions 131 are flush with the end surface of the first end 110c of the heating element 110. This allows the positive and negative leads to be directly connected to the first connecting portions 121 and the second connecting portions 131, simplifying the wiring path of the conductors and simplifying the wiring method of the heating assembly 100.

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 fixation to an external connection conductor.

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

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 linear structures, 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, thereby uniformly heating the aerosol-generating matrix in each heating region.

In the first embodiment, the first connecting portion 121 and the second connecting portion 131 are uniformly arranged along the circumferential direction of 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 in 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 in 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. Both may 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, but 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, thereby allowing the two heating regions to uniformly heat the aerosol-generating matrix. 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 and heat the aerosol-generating matrix. This heating assembly has a simple circuit distribution and can be connected at the same end, which simplifies the wiring path of the heating assembly and reduces manufacturing costs and complexity.

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 loop, a notched loop, 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. 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 the connection method of the heating assembly 100 to be selected as needed. In another embodiment, the first electrode 120 may include a third connection portion 133, which is used to connect to the positive electrode lead, thereby allowing the heating assembly to similarly achieve both single-sided and double-sided connection functions.

In one embodiment, at least one of the first connection portion 121, the second connection portion 131, and the third connection portion 133 is installed 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 connection portion 121, the second connection portion 131, and the third connection portion 133, a portion of the current flows from the first connection portion 121 to the second extension portion 132, or from the first extension portion 122 to the second connection portion 131, or from the first extension portion 122 to the third connection portion 133, resulting in irregular current directions within the heating region and uneven heat generation in the heating region. Preferably, the first connecting portion 121, the second connecting portion 131, and the third connecting portion 133 are all 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 heating 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. As can be seen, without the third connecting portion 133, the first connecting portion 121 and the second connecting portion 131 would all 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.

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, extending 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.

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 may be adjacent to each other, or two second extensions 132 may be adjacent to each other. 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 a heating region cannot be formed between two adjacent first extensions 122 or two adjacent second extensions 132, and 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 second extension portions 132 are installed alternately at intervals, thereby making full use of the infrared heat generating layer 112 and avoiding a situation where part of the infrared heat generating layer 112 is unable to form a heat generating area.

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 extend axially and are linear. Therefore, multiple first extension portions 122 and multiple 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 uniformly heat the aerosol generating matrix in each direction.

When there are a plurality of first extensions 122 and a plurality of second extensions 132, 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 plurality of first extensions 122. The third connection portion 133 is connected to the negative electrode lead and is also used to connect the plurality of second extensions 132. That is, the first electrode 120 and the second electrode 130 form a toothed electrode. Preferably, the third connection portion 133 is connected to each second extension 132, and the third connection portion 133 forms a ring shape at the second end 110d of the heating element , so that each heating region is electrically connected to operate each heating region.

In the fifth embodiment, the number of first extension portions 122 and second extension portions 132 is two. The two first extension portions 122 are located at both ends of the first connection portion 121. One second extension portion 132 is connected to the second connection portion 131 and the third connection portion 133, respectively, and the other second extension portion 132 is located between the two first extension portions 122 and is connected only to the third connection portion 133. The third connection portion 133 is ring-shaped and is installed at the second end 110d of the heating element 110, and is respectively connected to two second extension portions 132. The two first extension portions 122 and the two second extension portions 132 are installed alternately at intervals, all extend along the axial direction of the heating element 110, and all are linear. The two first extensions 122 and the two second extensions 132 are uniformly distributed along the circumferential direction, and the infrared heating layer 112 is divided into four heating regions of the same shape and size, allowing the four heating regions to 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 equivalent resistance of each heating region in the heating assembly 100 with four heating regions is smaller and the heating power of each heating region is greater, thereby improving the heating efficiency of the heating assembly 100 for the aerosol-generating matrix.

Referring to Figure 11, Figure 11 provides a structural schematic diagram of the outer wall of the heating assembly 100 of the sixth embodiment, which extends in its axial direction. In the sixth embodiment, the number of the first extension portion 122 and the second extension portion 132 is one. The first extension portion 122, the second extension portion 132, and the infrared heating layer 112 all extend spirally along the circumferential direction of the heating element 110, and extend from the first end 110c to the second end 110d of the heating element 110.

The first extension portion 122 and the second extension 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 extension portion 122 can be used as the first connection portion 121, and both ends of the second extension portion 132 can be used as the second connection portion 131. Alternatively, the first connection portion 121 and the second connection portion 131 are provided at both the first end 110c and the second end 110d, and the first connection portion 121 is connected to one end of the first extension portion 122, and the second connection portion 131 is connected to one end of the second extension portion 132.

Here, the infrared heating layer 112 is located between the first extension portion 122 and the second extension portion 132, and forms a spiral heating region. Preferably, the spiral extension directions of the first extension portion 122 and the second extension portion 132 are the same, the distance between the first extension portion 122 and the second extension portion 132 is the same, and the first extension portion 122 and the second extension portion 132 are uniformly distributed on the outer surface 110a of the heating element 110, allowing the infrared heating layer 112 to uniformly heat the aerosol-generating matrix.

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. Each of the multiple sub-heating elements 114 has an electrode on its inner surface 110 b. 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 multiple sub-heating elements 114 may have the shape of multiple hollow arcs. FIG. 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 a complete hollow cylindrical heating element 110.

In the present application, the first electrode 120, the second electrode 130, and the infrared heating layer 112 are all installed on the inner surface 110b of the base 111, so during the manufacturing process of the heating assembly, it is inconvenient to apply the electrodes and the infrared heating layer 112 from the outside to the receiving cavity 1111. Therefore, it is necessary to divide the heating element 110 into a plurality of sub-heating elements 114, apply the electrodes and the infrared heating layer 112 to each sub-heating element 114, and finally bond the sub-heating elements 114 to form the complete heating element 110.

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-connection portions 123 on multiple sub-heating elements 114 are joined to form the first connection portion 121, and the second sub-connection portions 134 on multiple 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, allowing the infrared heating layer 112 of each sub-heating element 114 to operate independently. That is, not only can the aerosol-generating matrix be heated as a whole after multiple sub-heating elements 114 are joined together, but the multiple sub-heating elements 114 can also be used individually as heating elements 110 without being joined together, and can heat the aerosol-generating matrix after being energized. When multiple sub-heating elements 114 are used individually 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 portion 123 and second sub-connection portion 134 of each sub-heating element 114, respectively.

As shown in FIG. 13, FIG. 13 is a schematic diagram of the side wall expansion structure of the heating element 110 formed by joining two sub-heating elements 114 shown in FIG. 11 provided in the seventh embodiment. Here, the heating element 110 includes a first sub-heating element 115 and a second sub-heating element 116, and the first sub-heating element 115 and the second sub-heating element 116 are both hollow semi-cylindrical in shape. After the first sub-heating element 115 and the second sub-heating element 116 are joined, a single hollow cylindrical heating element 110 can be formed. The inner surface 110b of the first sub-heating element 115 and the inner surface 110b of the second sub-heating element 116 are each provided with a first sub-connecting portion 123, a second sub-connecting portion 134, a first extension portion 122, and two second sub-extension portions 1321. 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.

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-extension portions 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 circuits on each sub-heating element 114 can be connected on both one side and two sides. This allows the heating assembly 100 to provide multiple wiring methods, allowing the connection method of the heating assembly 100 to be selected as needed.

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 multiple sub-heating elements 114.

During the process of joining multiple sub-heating elements 114, poor contact between the electrodes of the multiple sub-heating elements 114 may occur, but by installing the first conductive elastic piece, the second conductive elastic piece, and the third conductive elastic piece, each electrode on the different sub-heating elements 114 can be electrically connected, so that the heating assembly can operate normally and heat the aerosol generating matrix.

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

The second conductive elastic piece is disposed on the inner surface 110b of the heating element 110 and communicates with the second sub-connection portion 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-connection portions 123. Specifically, the second conductive elastic piece contacts and connects to the second sub-connection portion 134 on each sub-heating element 114, thereby electrically connecting the second sub-connection portion 134 on each sub-heating element 114. Alternatively, the second conductive elastic piece may contact and connect 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.

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

In one embodiment, as shown in Figure 14, which is a structural schematic diagram of a heating assembly 100 according to 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 allows the multiple sub-heating elements 114 to be joined together to form the heating element 110, so that the heating assembly can operate normally.

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 onto the first ends 110c of the sub-heating elements 114 and is used to fix the first ends 110c of the sub-heating elements 114. The second fixing member 152 is fitted onto the second ends 110d of the sub-heating elements 114 and is used 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, such that 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.

In the eighth embodiment, as shown in FIG. 14, the first fixing member 151 is a cylindrical top cover, and the second fixing member 152 is a cylindrical base. The heating element 110 includes two sub-heating elements 114, with the top cover fitted onto one end of the two sub-heating elements 114 and the base fitted onto the other end of the two sub-heating elements 114, thereby fixing the two sub-heating elements 114 to the top cover and base. Furthermore, the top cover and 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.

14, the fixing mechanism 150 further includes 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, thereby forming an airway between the aerosol-generating matrix and the accommodating cavity 1111, and making it easier to adjust the resistance to inhalation of the aerosol-generating matrix.

Figure 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 may include a heating assembly 100 and a power supply assembly 230.

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 embodiment, and the same or similar technical effects may be achieved, so further description will be omitted here.

Here, the aerosol generating device 200 may further include a housing 210 and a mounting seat 220. The mounting seat 220 is used to secure the heating assembly 100 to the housing 210. Specifically, the mounting seat 220 includes a mounting body having a through-hole 153 formed therein, and the heating assembly 100 is inserted into the through-hole 153 to be mounted on the mounting seat 220. In a specific embodiment, a recess may be further formed on the side wall of the through-hole 153, and the positive and negative electrode leads may specifically extend into the mounting seat 220 through the recess to connect 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, the mounting body may have at least two locking portions, and the mounting seat 220 may specifically be fixed to the housing 210 of the aerosol generating device by the locking portions.

Here, the aerosol generating device 200 may further include a controller (not shown). The controller is connected to the heating assembly 100 and the power supply assembly 230, respectively, 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.

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.

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

The above are only some of the embodiments of this application and do not limit the patent scope of this application. Any equivalent device or equivalent process transformation made using the contents of the specification and drawings of this application, or anything directly or indirectly applicable to other related technical fields, is similarly included within the patent protection scope of this application.

Claims (18)

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 . 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. 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. The heating assembly of claim 1, wherein 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, the first sub-connection portions installed on the plurality of sub-heating elements being joined to form a first connection portion, and the second connection portions installed on the plurality of sub-heating elements being joined to form a second connection portion. The heating assembly described in claim 4, characterized in that 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, allowing the infrared heating layer of each sub-heating element to operate independently. 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, the first extension portion, and two second sub-extending 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-extending 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-extending portion so that both the first sub-heating element and the second sub-heating element heat the aerosol generating matrix when energized. The heating assembly of claim 6, characterized in that 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. 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. The heating assembly of claim 4, further comprising a fixing mechanism that is fitted into the outer wall of the heating element and is used to fix multiple sub-heating elements to form the heating element. 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. 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. The heating assembly described in claim 11, characterized in that the first extension portion and/or the second extension portion extend along the axial direction of the heating element and are linear. The heating assembly of claim 12, wherein one first extension and one second extension are spaced apart, or multiple first extensions and multiple second extensions are alternately spaced apart, thereby dividing the heating element and forming an even number of heating regions. The heating assembly of claim 12, wherein the distance between any adjacent first extension and second extension is the same. 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 electrode lead, and the third connection portion is located at a second end of the heating element and is connected to at least one of the second extension portions. The heating assembly of claim 2, wherein both the first connection portion and the second connection portion are installed at a distance from the infrared heating layer of the heating element. The heating assembly of claim 2, wherein the heating element further includes a restricting member, the restricting member being attached to 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 opening that communicates with 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 opening. 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.