WO2023000858A1

WO2023000858A1 - Heating assembly and aerosol generating device

Info

Publication number: WO2023000858A1
Application number: PCT/CN2022/097723
Authority: WO
Inventors: 刘小力; 梁峰; 郭玉
Original assignee: 深圳麦时科技有限公司
Priority date: 2021-07-23
Filing date: 2022-06-08
Publication date: 2023-01-26
Also published as: CN113647691A

Abstract

Disclosed in the present invention are a heating assembly and an aerosol generating device. The heating assembly comprises a heating body, a conductive first electrode and a conductive second electrode. The heating body is used for accommodating and heating an aerosol generating substrate during power-on; the first electrode is arranged on an outer side surface of the heating body and has a first connection portion; and the second electrode is arranged, spaced apart from the first electrode, on the outer side surface of the heating body and has a second connecting portion, wherein the first connecting portion and the second connecting portion are located at the same end of the heating body. By means of the heating assembly and the aerosol generating device, a wiring path of a wire can be greatly simplified, the length of the wire can be shortened, and the manufacturing cost and difficulty can be effectively reduced.

Description

Heating assembly and aerosol generating device

Cross References to Related Applications

This application claims its priority based on Chinese patent application 2021108393386 submitted on July 23, 2021, and its entire description is incorporated herein by reference.

【Technical field】

The invention relates to the technical field of electronic atomization devices, in particular to a heating assembly and an aerosol generating device.

【Background technique】

Heat-not-burn aerosol generators have attracted more and more attention and favor because of their advantages of safety, convenience, health, and environmental protection.

Existing heat-not-burn aerosol generating devices generally include a heating component to heat and atomize the aerosol generating substrate when the heating component is energized; specifically, the heating component is provided with a first electrode and a second electrode, wherein , the first electrode is used to connect to the electrode lead, the second electrode is used to connect to the negative lead, and then communicates with the power supply through the positive lead and the negative lead, so that the power supply supplies power to the heating assembly.

However, when the existing heating assembly is used, the wiring path of the positive electrode wire and/or the negative electrode wire is relatively complicated, and the manufacturing cost is relatively high, which is relatively difficult.

【Content of invention】

The heating assembly and the aerosol generating device provided by the present invention can solve the problems of the existing heating assembly, the wiring path of the positive electrode wire and/or the negative electrode wire is relatively complicated, the production cost is high, and the difficulty is great.

In order to solve the above technical problems, a technical solution adopted by the present application is to provide a heating assembly, which includes a heating element, a conductive first electrode and a conductive second electrode. The heating element is used to accommodate and heat the aerosol-generating substrate when energized; the first electrode is arranged on the outer surface of the heating element and has a first connection part; the second electrode and the first electrode are arranged on the outer surface of the heating element at intervals, and There is a second connection part, wherein the first connection part and the second connection part are located at the same end of the heating body.

Wherein, the heating element has opposite first end and second end, and the first connecting part and the second connecting part are both arranged on the first end of the heating element; the first electrode also includes at least one first connecting part connected with the first An extension part, the first extension part extends from the first connection part toward the second end of the heating element; the second electrode further includes at least one second extension part connected to the second connection part, the second extension part extends from the second connection part toward The second end of the heating element is extended, and a heating area is formed between adjacent first and second extensions.

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

Wherein, one first extension part and one second extension part are arranged at intervals or a plurality of first extension parts are arranged at intervals with a plurality of second extension parts alternately, so as to divide the heating body to form an even number of heating regions.

Wherein, the distance between any adjacent first extension part and second extension part is the same.

Wherein, the second electrode further includes a third connection portion, the third connection portion is disposed at the second end of the heating element and connected to at least one second extension portion.

Wherein, the number of the first extension part and the second extension part is one, and the first extension part extends from the first connection part to the second end, and the second extension part extends from the second connection part to the second end, thereby forming Two heat zones.

Wherein, the number of the first extension part and the second extension part is two, and the two first extension parts are respectively located at the two ends of the first connection part, thereby forming four heating regions;

Wherein, the second electrode further includes a third connection part, one of the two second extension parts is connected to the second connection part; the third connection part connects the two second extension parts.

Wherein, the first extension part and the second extension part extend along the circumferential direction of the heating element and are in a spiral shape.

Wherein, the heating area is located between a first extending portion and a second extending portion and forms a spiral heating area.

Wherein, the extending directions of the first extending portion and the second extending portion are consistent.

Wherein, each of the first connecting portion and the second connecting portion is spaced apart from the heating layer of the heating element.

Wherein, each of the first connecting portion, the second connecting portion and the third connecting portion is spaced apart from the heating layer of the heating element.

Wherein, the heating element is hollow tubular.

Wherein, the heating body includes a base body and a heating layer. The base body has a receiving cavity for storing the aerosol-generating substrate; the heating layer is arranged on the outer surface of the base body, and is respectively connected with the first electrode and the second electrode, and is used to generate heat to heat the aerosol-generating substrate when electrified.

Wherein, the substrate is a hollow cylinder and the material is quartz or glass.

Wherein, the heating layer is an infrared heating film.

Wherein, the heating element also includes at least one limiting member, at least one limiting member is arranged on the substrate, and the limiting member is used to limit the aerosol generating substrate, so that the outer surface of the aerosol generating substrate is in contact with the receiving chamber. There is a gap between the inner sides.

Wherein, the first connecting portion extends along the circumferential direction of the heating element and has a gap.

Wherein, the second connecting part is located at the position of the notch, and has the same height as the first connecting part in the axial direction of the heating element.

In order to solve the above technical problems, another technical solution adopted by the present application is to provide an aerosol generating device, including a heating component and a power supply component. The heating component is used to heat the aerosol-generating substrate after being energized; the heating component is any one of the above-mentioned heating components; the power supply component is electrically connected to the first connection part and the second connection part of the heating component, and is used to supply power to the heating component.

In the heating assembly and aerosol generating device provided by the present application, the heating assembly is provided at the same end on the side of the heating body by setting the first connection part for connecting to the positive lead and the second connection part for connecting to the negative lead, so that the positive electrode The lead wire and the negative electrode can be connected at the same end of the heating element, and there is no need for the positive electrode wire or the negative electrode wire to be further routed to the other end to communicate with the corresponding electrode. The routing path of the wire is greatly simplified, the length of the wire is reduced, and the manufacturing cost and difficulty are effectively reduced.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram of the overall structure of a heating assembly provided by an embodiment of the present application;

Fig. 2 is a schematic structural view of the outer wall of the heating assembly shown in Fig. 1 developed along its axial direction provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of the overall structure of a heating assembly provided by an embodiment of the present application;

Fig. 4 is a schematic structural view of the outer wall of the heating assembly developed along its axial direction provided by another embodiment of the present application;

Fig. 5 is a schematic structural view of the outer wall of the heating assembly developed along its axial direction according to another embodiment of the present application;

Fig. 6 is a schematic diagram of the overall structure of a heating assembly provided by another embodiment of the present application;

Fig. 7 is a schematic structural view of the outer wall of the heating assembly shown in Fig. 6 developed along its axial direction provided by another embodiment of the present application;

Fig. 8 is a schematic diagram of the overall structure of a heating assembly provided in another embodiment of the present application;

Fig. 9 is a schematic structural view of the outer wall of the heating assembly shown in Fig. 8 developed along its axial direction provided by another embodiment of the present application;

Fig. 10 is a schematic structural view of the aerosol generating device provided in the present application.

【detailed description】

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application.

The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include at least one of said features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the various components in a certain posture (as shown in the drawings) , sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or components inherent in those processes, methods, products, or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of a phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

The application will be described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 provides a schematic structural diagram of the heating assembly 100 in this embodiment, and FIG. 2 is a schematic diagram of the expansion of the heating assembly 100 in FIG. 1 . In this embodiment, a heating component 100 is provided, and the heating component 100 is specifically used to accommodate and heat the aerosol-forming substrate when energized; wherein, the aerosol-forming substrate can specifically be a plant grass-leaf substrate or a paste-like substrate, etc. . The aerosol-forming substrate can be wrapped inside aluminum foil or paper, etc., and used together.

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

Wherein, the heating element 110 is used for accommodating the aerosol-forming substrate, and the heating element 110 includes a heating material. The heating element 110 can not only support the aerosol-forming substrate contained therein, but also generate heat when energized, and heat the aerosol-forming substrate contained therein, thereby forming an aerosol for users.

The first electrode 120 is used to connect to the positive wire, and the second electrode 130 is used to connect to the negative wire, so that the heating element can receive the power provided by the external power supply, so that the heating element 110 can be energized to generate heat. The heating element 110 has an outer surface 110a and an inner surface 110b. The first conductive electrode 120 and the second conductive electrode 130 are spaced apart from the outer surface 110a of the heating element 110 and electrically connected through a conductive heating layer.

The first electrode 120 has a first connection portion 121 for connecting to the positive wire; the second electrode 130 has a second connection portion 131 for connecting to the negative wire. Wherein, the first connecting portion 121 and the second connecting portion 131 are disposed at the same end of the heating element 110 at intervals. Wherein, the same end of the heating element 110 refers to the first end of the heating element 110 or the second end of the heating element 110; specifically, the direction perpendicular to the axial direction of the heating element 110 and passing through the heating element 110 along its axis The plane where the central point of the direction is located is the boundary, the part of the heating element 110 located on one side of the plane is the first end 110c of the heating element 110, and the part of the heating element 110 located on the other side of the plane is the second end 110d of the heating element 110 . Specifically, in this embodiment, the heating element 110 is a hollow column with opposite first ends 110c and second ends 110d, and the first connecting portion 121 and the second connecting portion 131 are arranged at intervals at the first end 110c of the heating element 110 . Therefore, both the positive electrode lead and the negative electrode lead can be connected to the first connecting portion 121 and the second connecting portion 131 at the same end of the heating element 110 . In other embodiments, it is also possible that the first connecting portion 121 is connected to the negative lead wire, and the second connecting portion 131 is connected to the positive lead wire.

The first electrode 120 and the second electrode 130 can be a conductive coating coated on the outer surface 110a of the heating element 110. The conductive coating can be a metal coating, a conductive silver paste or a conductive tape, etc., or it can be provided on the heating element. The metal conductive sheet on the outer surface 110a of the heating element 110 or the metal deposited on the outer surface 110a of the heating element 110, such as a gold film, an aluminum film or a copper film.

In the heating assembly 100 provided in this embodiment, the first connecting portion 121 for connecting to the positive lead and the second connecting portion 131 for connecting to the negative lead are arranged at the same end of the outer surface 110a of the heating element 110, so that the positive lead The negative electrode and the negative electrode can be connected at the same end of the heating element 110, and there is no need for the positive electrode wire or the negative electrode wire to be further routed to the other end to communicate with the corresponding electrode. Compared with the scheme in which the first connecting portion 121 and the second connecting portion 131 are arranged at the opposite ends of the outer wall of the heating element 110, the positive and negative lead wires need to be connected at both ends, which not only greatly simplifies the routing of the wires The path reduces the length of the wire, and effectively reduces the manufacturing cost and difficulty.

The heating element 110 can be entirely made of conductive materials, such as conductive ceramics, and can also include an insulating base and a conductive heating layer disposed on the surface of the insulating base. In this embodiment, the heating element 110 includes a base 111 and a heating layer 112 . The substrate 111 is made of an insulating material. The substrate 111 can be a high-temperature-resistant insulating material such as quartz glass, ceramics or mica, so as to prevent the short circuit between the first electrode 120 and the second electrode 130. When the substrate is quartz glass, the transparency of more than 80% can be selected. of quartz glass. The base body 111 has a housing cavity 1111 for housing an aerosol generating matrix. One end of the receiving chamber 1111 has an opening, so that the aerosol-generating substrate can be inserted into or withdrawn from the receiving chamber 1111 through the opening. The base body 111 can be hollow tubular. In this embodiment, the base body 111 is a hollow cylinder, the housing cavity 1111 is cylindrical, and the wall thickness of the side wall of the base body 111 is a fixed value, so that the heating element 110 can evenly dissipate the aerosol. Substrate heating is generated. Both the first connecting portion 121 and the second connecting portion 131 are arc-shaped along the circumferential extension of the base body 111 . same height.

In one embodiment, as shown in FIG. 3 , further, the end of the substrate 111 can also be provided with a limiting member 113 for limiting the aerosol-generating substrate, so that the aerosol-generating substrate can be inserted into the aerosol-generating substrate through the opening. When the cavity 1111 is used, there is an air gap between the aerosol generating substrate and the inner wall of the receiving chamber 1111, and the air gap can be used as a heat insulation layer to prevent the side wall of the substrate 111 from absorbing the heat of the aerosol generating substrate.

Specifically, the limiting member has a limiting hole 1131 communicating with the opening of the receiving cavity 1111, and the aperture of the limiting hole 1131 is smaller than the inner diameter of the cylindrical receiving cavity 1111; the center of the limiting hole 1131 can be set on the axis of the receiving cavity 1111 to limit the aerosol-generating substrate to the center of the heating element 110 .

The number of limiter 113 can be one, for example, in the embodiment of Figure 3, the limiter is an annular flange on the inner surface of the receiving cavity 1111 near the end; the number of limiter 113 can also be multiple, A plurality of limiting members 113 are disposed on the base 111 at equal intervals along the circumferential direction of the receiving cavity 1111 , so that the limiting members 113 can effectively limit multiple radial directions of the aerosol-generating substrate. Further, the heights of the plurality of limiting members 113 in the axial direction of the receiving cavity 1111 are equal, so as to form the limiting holes 1131 at the same axial height of the receiving cavity 1111 .

The shape of the limiting member 113 may be in the shape of a ring, an arc, a point, a block, or a strip. For example, two arc-shaped stoppers 113 can be arranged at equal intervals on the inner surface 110b of the receiving cavity 1111; or, three block-shaped stoppers 113 can be arranged at equal intervals on the end surface of the first end 110c of the base body 111 , and a limiting hole 1131 is formed at the first end 110c of the base body 111 .

The heat generating layer 112 can generate heat when electrified to heat the aerosol generating substrate. The heat generating layer 112 is disposed around the outer surface 110 a of the substrate 111 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 heating layer 112 between the first electrode 120 and the second electrode 130 , thereby generating heat. The heating layer 112 can be a metal layer, a conductive ceramic layer or a conductive carbon layer. The shape of the heating layer 112 can be a continuous film, a porous mesh or a strip. In this embodiment, the heating layer 112 is an infrared heating film, and when the infrared heating film is electrified, it radiates infrared rays to heat the aerosol-generating substrate in the receiving chamber 1111 . Among them, the wavelength of infrared heating is 2.5um-20um. According to the characteristics of heating aerosol to form a matrix, the heating temperature usually needs to be above 350°C, and the extreme value of energy radiation is mainly in the 3-5um band.

In other embodiments, the first electrode 120 , the second electrode 130 and the heating layer 112 may also be disposed on the inner side 110 b of the heating body 110 , and are not limited to only being disposed on the outer side 110 a of the heating body 110 .

In one embodiment, as shown in FIG. 4 , the first connecting portion 121 is annular, extends along the circumferential direction of the heating element 110 and has a gap 1211 , that is, the first connecting portion 121 does not form a closed loop in the circumferential direction. . The second connecting portion 131 is located at a position away from the end surface of the first end 110 c of the first connecting portion 121 , and the negative lead wire can be connected to the second connecting portion 131 through the gap 1211 . The first connecting part 121 forms a notch 1211, which can make the negative lead lead connect to the second connecting part 131 without contacting the first connecting part 121, prevent the negative lead lead from contacting and shorting the first connecting part 121, and facilitate wiring.

FIG. 4 shows three longitudinal positional relationships between the first connecting portion 121 and the second connecting portion 131 . When the second electrode 130 is at position a, the second connecting portion 131 is completely misaligned with the notch 1211 along the axial direction of the heating element 110; The axial direction is oppositely arranged; when the second electrode 130 is at position c, the second connecting portion 131 is partially displaced from the notch 1211 along the axial direction of the heating element 110 . When the second electrode 130 is arranged at position b, the wire is more easily connected to the second connection portion 131 through the gap 1211 , and the wiring path of the wire is simpler.

In this embodiment, as shown in FIG. 2 , both the first connecting portion 121 and the second connecting portion 131 can be regarded as circular rings with gaps, wherein one of the first connecting portion 121 and the second connecting portion 131 is set at the other gap. For example, all of the second connecting portion 131 is exposed through the notch 1211 along the axial direction of the heating element 110, and the second connecting portion 131 is located at the position of the notch 1211, and is connected to the first connecting portion 121 in the axial direction of the heating element 110. highly consistent. Further, the first connecting portion 121 and the second connecting portion 131 are flush with the end surface of the first end 110 c of the heating element 110 . Thus, the positive lead and the negative lead can be directly connected to the first connecting portion 121 and the second connecting portion 131 , and the routing path of the wire is simpler, which simplifies the routing of the heating assembly 100 .

In this 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 is from the first connection portion 121 toward the second end of the heating element 110 110d extended. 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 extends from the second connection portion 131 toward the second end 110 d 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 an end surface of the second end 110d. Wherein, the first extension portion 122 and the second extension portion 132 are used to form or define at least one heat generation area on the heat generation layer 112 . The first extension portion 122 and the second extension portion 132 are spaced apart, and the heat generation layer 112 between the adjacent first extension portion 122 and the second extension portion 132 forms a heat generation area. After the first electrode 120 and the second electrode 130 are energized, a current flows through the heating area between the first extension part 122 and the second extension part 132, and the heating area generates heat and heats the aerosol generating substrate. The first connecting portion 121 and the first extending portion 122 may be made of the same material, and are formed by printing or depositing once. The second connecting portion 131 and the second extending portion 132 may be made of the same material, and are formed by printing or depositing once. In this application, the difference between the connection part and the extension part is that the size of the connection part may be larger than that of the extension part, which is convenient for welding or bonding with the external wire.

Wherein, the extending paths of the first extending portion 122 and the second extending portion 132 can be linear, broken line, curved or irregular; the extending direction of the first extending portion 122 and the second extending portion 132 can be along the axial direction It can also extend in any angle direction with the axial direction, or extend helically in the circumferential direction.

In one embodiment, the first extension part 122 and the second extension part 132 are parallel, both extend along the axial direction of the heating element 110, and both are linear, so that the first extension part 122 and the second extension part 132 The regular shape of the heating zones in between is beneficial to make the current distribution between the first extension part 122 and the second extension part 132 uniform, so that each heating zone can evenly heat the aerosol-generating substrate. In this embodiment, the extension part is vertically connected to the connection part. In the embodiment shown in FIG. 1 and FIG. 2 , the first connecting portion 121 and the second connecting portion 131 are evenly distributed on the first end 110c of the base body 111 in the circumferential direction. The number of the first extension part 122 and the second extension part 132 can be one. One end of the first extension portion 122 is located in the middle of the first connecting portion 121 , and the other end extends to the end surface of the second end 110 d of the base body 111 . In other embodiments, the other end can also extend to a position close to the end surface. One end of the second extension portion 132 is located in the middle of the second connecting portion 131 , and the other end extends to the end surface of the second end 110 d of the base body 111 . In other embodiments, the other end can also extend to a position close to the end surface. The first extension portion 122 and the second extension portion 132 are arranged at opposite ends of the same diameter of the cylindrical base 111 at intervals, both extend along the axial direction of the heating element 110, and both can be linear; of course, in other embodiments In the present application, the first extension part 122 and/or the second extension part 132 may also be in a curved shape, as long as the two do not intersect; specifically, the first extension part 122 and the second extension part The portion 132 is evenly distributed along the circumferential direction, and divides the heat generating layer 112 into two heat generating regions with the same shape and size, so that the two heat generating regions can evenly heat the aerosol-generating substrate. After the first electrode 120 and the second electrode 130 are energized, the current flows from the first extension part 122 to the second extension part 132 in two opposite directions. Substrate heating. The circuit distribution of the heating component is simple, and the wiring mode of the same end is realized, so that the wiring path of the heating component is relatively simple, and the manufacturing cost and difficulty are reduced.

Please refer to FIG. 5 . FIG. 5 provides a schematic diagram of an expanded structure of another heating assembly 100 . In one embodiment, the second electrode 130 further includes a third connection part 133, and the third connection part 133 is used for connecting with the negative lead. The third connection portion 133 is disposed on the second end 110 d of the heating element 110 and connected to the second extension portion 132 . The third connecting portion 133 may extend circumferentially along the second end 110d of the heating element 110 to form a closed loop, a loop with a gap, or an arc. During wiring, the positive wire is connected to the first connection portion 121 of the first end 110c, and the negative wire can be connected to the second connection portion 131 of the first end 110c or to the third connection portion 133 of the second end 110d. . Therefore, setting the third connection portion 133 can enable the heating assembly 100 to realize both single-side wiring and double-side wiring. Way. In other embodiments, it is also possible that the first electrode 120 includes a third connection portion 133, and the third connection portion 133 is used to connect with the positive electrode wire, and also realize the function that the heating element can be connected on one side or on both sides. .

In one embodiment, at least one of the first connecting portion 121 , the second connecting portion 131 and the third connecting portion 133 is spaced apart from the heating layer 112 of the heating element 110 . When the 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, part of the current will flow from the first connecting portion 121 to the second extending portion 132, or from the second extending portion 132 An extension part 122 flows to the second connection part 131 , or flows from the first extension part 122 to the third connection part 133 , so that the direction of current in the heating area is irregular, and the heat generation in the heating area is uneven. Preferably, the first connecting part 121, the second connecting part 131 and the third connecting part 133 are all spaced apart from the heating layer 112 of the heating element 110, so that the direction of current flow in the heating area is defined as the circumferential direction, so that the current flow in the heating area The trend is regular, which makes the heating of the heating area more uniform, and the heating of the aerosol-generating substrate is more uniform. Further, the edge of the heat generating layer 112 is flush with the end of the first extension 122 near the second end 110d, and the first extension 122 completely separates the heat generating layer 112 into two spaced heat generating areas with the same shape and area, so as to Make the trend of the current in the heating area more regular. It can be understood that when there is no third connecting portion 133 , both the first connecting portion 121 and the second connecting portion 131 are spaced apart from the heating layer 112 of the heating element 110 , and have the same distance from the heating layer 112 of the heating element 110 .

In one embodiment, please refer to FIG. 6 and FIG. 7 , FIG. 6 provides a schematic perspective view of another heating assembly 100 , and FIG. 7 is an expanded schematic view of the heating assembly 100 in FIG. 6 . The first electrode 120 includes a plurality of first extensions 122 connected to the first connection part 121 , and the second electrode 130 includes a plurality of second extensions 132 connected to the second connection part 131 . Adjacent first extension parts 122 and second extension parts 132 are arranged at intervals, and a heating area is formed between adjacent first extension parts 122 and second extension parts 132 . Further, the plurality of first extensions 122 and the plurality of second extensions 132 are alternately arranged to separate the heat generation layer 112 in the circumferential direction to form an even number of heat generation areas, and each heat generation area has a part of the heat generation layer 112 .

When the number of the first extensions 122 and the second extensions 132 are the same, the first extensions 122 and the second extensions 132 are alternately arranged at intervals, so that the heat generation layer 112 can be fully utilized and divided into an even number of heat generation areas: Aerosols generate substrate heating. When the numbers of the first extensions 122 and the second extensions 132 are different, two first extensions 122 are adjacent or two second extensions 132 are adjacent, and the two adjacent first extensions The electrodes of the two adjacent extension parts 122 are of the same polarity, the electrodes of two adjacent second extension parts 132 are of the same polarity, and no current can be conducted between them, that is, the adjacent two first extension parts 122 or the adjacent two A heat generating area cannot be formed between the two second extension parts 132, and the heat generating layer 112 cannot be fully utilized. Therefore, when the number of the first extension part 122 and the second extension part 132 are the same, the first extension part 122 and the second extension part 132 are alternately arranged at intervals, so that the heat generation layer 112 can be fully utilized, and the occurrence of part of the heat generation layer 112 can be avoided. The case where a hot zone cannot be formed.

Further, any adjacent first extension part 122 and second extension part 132 have the same spacing distance, and the first extension part 122 and the second extension part 132 extend along the axial direction and are linear, so that a plurality of first extension parts The extension part 122 and the plurality of second extension parts 132 are evenly distributed circumferentially on the outer surface 110a of the heating element 110, and the shape and size of the heat generation area between adjacent first extension parts 122 and second extension parts 132 are the same , the equivalent resistance of each heating zone is the same. Therefore, the magnitude of heat emitted by each heating area can be basically the same after electrification, and each heating area can evenly heat all directions of the aerosol-generating substrate.

When the number of the first extension part 122 and the second extension part 132 is multiple, the second electrode 130 includes a third connection part 133 . The first connecting part 121 is used for connecting with the positive lead wire and also for connecting multiple first extension parts 122; the third connecting part 133 is used for connecting with the negative lead wire and also for connecting multiple second extending parts 132 , that is, the first electrode 120 and the second electrode 130 form a spline electrode. Preferably, the third connection part 133 is connected to each second extension part 132, and the third connection part 133 forms a closed loop at the second end 110d of the heating body, so that each heating area can be energized and operated.

In the embodiment shown in FIG. 6 and FIG. 7 , the number of the first extension part 122 and the number of the second extension part 132 are both two. The two first extension parts 122 are respectively located at two ends of the first connecting part 121 . One second extension portion 132 is respectively connected to the second connection portion 131 and the third connection portion 133 , and the other second extension portion 132 is disposed between the two first extension portions 122 and only connected to the third connection portion 133 . The third connecting portion 133 is annularly disposed on the second end 110d of the heating element 110 and connected to the two second extending portions 132 respectively. The two first extensions 122 and the two second extensions 132 are alternately arranged at intervals, both 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 evenly distributed along the circumferential direction, and the heat generation layer 112 is divided into four heat generation areas with the same shape and size, so that the four heat generation areas can evenly heat the air. The sol generates matrix heating. Compared with the heating assembly 100 in which the circuit divides the heating layer 112 into two heating areas, the equivalent resistance of each heating area in the heating assembly 100 of the four heating areas is smaller, and the heating power of each heating area is larger. The assembly 100 is more efficient at heating the aerosol-generating substrate.

Please refer to FIG. 8 and FIG. 9 , FIG. 8 provides a schematic perspective view of another heating assembly 100 , and FIG. 9 is an expanded schematic view of the heating assembly 100 in FIG. 8 . In the embodiment shown in FIG. 8 and FIG. 9 , the number of the first extension part 122 and the number of the second extension part 132 is one. Both the first extension portion 122 and the second extension portion 132 extend helically along the circumferential direction of the heating element 110 , and extend from the first end 110 c to the second end 110 d of the heating element 110 .

Wherein, the heat generating layer 112 is located between the first extending portion 122 and the second extending portion 132 and forms a spiral heat generating area. Preferably, the helical extension directions of the first extension part 122 and the second extension part 132 are consistent, and the distances between the first extension part 122 and the second extension part 132 are equal everywhere, and the first extension part 122 and the second extension part 132 and the heating layer 112 are evenly distributed on the outer surface 110a of the heating element 110, so that the heating layer 112 evenly heats the aerosol generating substrate.

Since the first end 110c of the heating element 110 spirally extends to the second end 110d of the first extension part 122 and the second extension part 132, both ends of the first extension part 122 can be used as the first connecting part 121, and the second extension part Both ends of 132 can be used as the second connection part 131 . Alternatively, the first connecting portion 121 and the second connecting portion 131 are both provided at the first end 110c and the second end 110d, and the first connecting portion 121 is connected to one end of the first extension portion 122, and the second connecting portion 131 is connected to the second end. One end of the extension part 132 is connected.

FIG. 10 is a schematic structural diagram of an aerosol generating device 200 provided by an embodiment of the present application. In this embodiment, an aerosol generating device 200 is provided, and the aerosol generating device 200 may include a heating assembly 100 and a power supply assembly 230 .

Wherein, the heating assembly 100 can specifically be the heating assembly 100 involved in any of the above-mentioned embodiments, and its specific structure and function can refer to the relevant description of the heating assembly 100 in the above-mentioned embodiments, and can achieve the same or similar technical effects. This will not be repeated here.

Wherein, the aerosol generating device 200 may further include a casing 210 and a mounting seat 220 . The mounting base 220 is used to fix the heating assembly 100 on the housing 210; specifically, the mounting base 220 includes a mounting body, and a through hole is provided on the mounting body, and the heating assembly 100 is specifically plugged into the through hole to be connected with the mounting base 220. Installation; in a specific embodiment, an avoidance groove may also be provided on the side wall of the through hole, and the positive and negative lead wires specifically extend into the mounting seat 220 through the avoiding groove so as to be connected with the first part of the heating element 110 away from the mounting seat 220. The electrode 120 is connected to the second electrode 130 . Further, at least two clamping parts are provided on the installation body, and the mounting base 220 is fixed to the housing 210 of the aerosol forming device through the clamping parts.

Wherein, the aerosol generating device 200 may also include a controller (not shown in the figure), the controller is respectively connected with 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 and Control the heating power of the heating component 100, the heating duration, and the like.

Wherein, the power supply assembly 230 is electrically connected with the first connection part 121 and the second connection part 131 of the heating assembly 100, and is used to supply power to the heating assembly 100; and in one embodiment, the power supply assembly 230 may specifically include rechargeable lithium ion Battery.

The aerosol generating device 200 provided in this embodiment is provided with a heating assembly 100, and the heating assembly 100 is configured to generate heat by setting the first connecting portion 121 for connecting to the positive lead wire and the second connecting portion 131 for connecting to the negative lead wire. The same end of the outer surface 110a of the body 110, so that the positive wire and the negative wire can be connected at the same end of the heating body 110, without the need for the positive wire or the negative wire to be further routed to the other end to communicate with the corresponding electrode. Compared with the scheme in which the first connecting portion 121 and the second connecting portion 131 are arranged at the opposite ends of the outer wall of the heating element 110, the positive and negative lead wires need to be connected at both ends, which not only greatly simplifies the routing of the wires The path reduces the length of the wire, and effectively reduces the manufacturing cost and difficulty.

The above is only the implementation mode of this application, and does not limit the scope of patents of this application. Any equivalent structure or equivalent process transformation made by using the contents of this application specification and drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present application in the same way.

Claims

A heating assembly, comprising:

A heating element for containing and heating the aerosol-generating substrate when energized;

a conductive first electrode, disposed on the outer surface of the heating element, and has a first connecting portion;

The conductive second electrode is spaced apart from the first electrode on the outer surface of the heating element and has a second connection portion, wherein the first connection portion and the second connection portion are located on the heating element the same end.
The heating assembly according to claim 1, wherein the heating element has a first end and a second end opposite to each other, and the first connecting portion and the second connecting portion are both provided on the first end of the heating element. end; the first electrode further includes at least one first extension connected to the first connection part, and the first extension extends from the first connection part toward the second end of the heating element; The second electrode further includes at least one second extension part connected to the second connection part, the second extension part extends from the second connection part toward the second end of the heating element, and all adjacent A heat generating area is formed between the first extension part and the second extension part.
The heating assembly according to claim 2, wherein 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 according to claim 3, wherein one of the first extensions is spaced apart from one of the second extensions, or a plurality of the first extensions are alternately spaced from a plurality of the second extensions It is set to divide the heating body to form an even number of the heating regions.
The heating assembly according to claim 4, wherein the distance between any adjacent first extension part and the second extension part is the same.
The heating assembly according to claim 2, wherein the second electrode further includes a third connecting portion, the third connecting portion is arranged at the second end of the heating element and extends with the at least one second department connection.
The heating assembly according to claim 2, wherein the number of the first extension part and the number of the second extension part is one, and the first extension part extends from the first connection part to the second extension part. Two ends, the second extension part extends from the second connecting part to the second end, thereby forming two heating regions.
The heating assembly according to claim 6, wherein the number of the first extension part and the second extension part is two, and the two first extension parts are respectively located at two ends of the first connection part, Thus, four heat generating areas are formed; the third connecting portion connects the two second extending portions.
The heating assembly according to claim 2, wherein the first extending portion and the second extending portion extend along a circumferential direction of the heating body and are in a spiral shape.
The heating assembly according to claim 9, wherein the number of the first extension part and the number of the second extension part is one, and the heating area is located between the first extension part and the second extension part Between and form a spiral heating zone.
The heating assembly according to claim 9, wherein the extending directions of the first extending portion and the second extending portion are consistent.
The heating assembly according to claim 1, wherein each of the first connecting portion and the second connecting portion is spaced apart from the heating layer of the heating element.
The heating assembly according to claim 6, wherein each of the first connecting portion, the second connecting portion and the third connecting portion is spaced apart from the heat generating layer of the heat generating body.
The heating assembly according to claim 1, wherein the heating element is in the shape of a hollow tube.
The heating assembly according to claim 1, wherein the heating element comprises:

The base body has a housing cavity for housing the aerosol generating matrix;

The heat generating layer is arranged on the outer surface of the substrate and connected to the first electrode and the second electrode respectively, and is used to generate heat to heat the aerosol generating substrate when electrified.
The heating assembly of claim 15, wherein:

The base body is a hollow cylinder and the material is quartz or glass.
The heating assembly according to claim 15, wherein the heating layer is an infrared heating film.
The heating assembly according to claim 15, wherein the heating element further comprises at least one limiting member, the at least one limiting member is arranged on the base body, and the limiting member is used for controlling the aerosol The substrate is limited so that there is a gap between the outer surface of the aerosol-generating substrate and the inner surface of the accommodating chamber.
The heating assembly according to claim 1, wherein the first connecting portion extends along the circumferential direction of the heating element and has a notch.
The heating assembly according to claim 19, wherein the second connection part is located at the position of the notch, and has the same height as the first connection part in the axial direction of the heating element.
An aerosol generating device, comprising:

A heating component, used for heating the aerosol-generating substrate after being energized; the heating component is the heating component according to claim 1;

The power supply component is electrically connected to the first connection part and the second connection part of the heating component, and is used to supply power to the heating component.