Aerosol generating device, atomizing core and heating element

Abstract

The utility model relates to the technical field of atomization devices, in particular to an aerosol generating device, an atomization core and a heating element. The heating element comprises a first electrode, a second electrode and a heating net, and the heating net is conductively connected with the first electrode and the second electrode. The heating net comprises a first heating section group and a second heating section group, and the first heating section group and the second heating section group are connected in parallel; the first heating section group comprises at least two first heating sections which are connected in series, the second heating section group comprises at least two second heating sections which are connected in series, and the first heating sections are separated from the second heating sections. The at least one first heating section comprises a first branch and a second branch which are connected in parallel. The two ends of the first branch are connected with the two ends of the second branch respectively, and the middle of the first branch and the middle of the second branch are bent in the direction away from each other. In this way, heat of the first branch and the second branch can act on a larger area, and therefore the problem that the heating element is poor in heating uniformity is solved.

Description

Technical Field

[0001] This application relates to the field of atomization device technology, specifically to an aerosol generating device, an atomizing core, and a heating element. Background Technology

[0002] An aerosol generating device is used to generate aerosols for users to inhale. One aerosol generating device generates aerosols by heating an aerosol generating matrix. The device includes an atomizing core, which includes a heating element. The heating element contacts the aerosol generating matrix, heating and atomizing the matrix to generate aerosols.

[0003] The heating element includes electrodes and a heating mesh connected to the electrodes. Currently, the heating area of ​​the heating mesh is usually curved and linear, with a small coverage area, poor heating uniformity, and areas with high temperature are prone to burning. Utility Model Content

[0004] This application provides a heating element to improve the problem of poor heating uniformity in current aerosol generating devices.

[0005] In addition, the purpose of this application is to provide an atomizing core using the above-mentioned heating element.

[0006] In addition, this application also aims to provide an aerosol generating device using the above-described atomizing core.

[0007] In a first aspect, one embodiment provides a heating element, comprising:

[0008] First electrode;

[0009] The second electrode, one of the first electrode and the second electrode is used to conduct to the positive electrode, and the other is used to conduct to the negative electrode;

[0010] A heating mesh is electrically connected to both the first and second electrodes. The heating mesh includes a first heating segment group and a second heating segment group, which are connected in parallel. The first heating segment group includes at least two first heating segments connected in series, and the second heating segment group includes at least two second heating segments connected in series. The first heating segments and the second heating segments are separate.

[0011] At least one of the first heating segments includes a first branch and a second branch, the first branch and the second branch being connected in parallel, and the middle portions of the first branch and the second branch being bent in a direction away from each other.

[0012] Furthermore, in one embodiment, at least one of the second heating segments includes a third branch and a fourth branch, the third branch being connected in parallel with the fourth branch, and the middle portions of the third branch and the fourth branch bending in a direction away from each other.

[0013] Furthermore, in one embodiment, each of the first heating segments includes a first branch and a second branch, and each of the second heating segments includes a third branch and a fourth branch, wherein the resistance values ​​of the first branch, the second branch, the third branch, and the fourth branch are all equal.

[0014] In a further embodiment, the heating grid includes heat dissipation strips, the first heating segment group includes a first connecting portion, the second heating segment group includes a second connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the second connecting portion is connected in series between two adjacent second heating segments, and at least one end of the heat dissipation strip is connected to the first connecting portion and the other end is connected to the second connecting portion.

[0015] In a further embodiment, the heating mesh includes heat dissipation strips, the second heating segment group includes a second connecting portion, the second connecting portion is connected in series between two adjacent second heating segments, the middle part of the third branch and the middle part of the fourth branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the second connecting portion in the first direction.

[0016] In a further embodiment, the heating mesh includes heat dissipation strips, the first heating segment group includes a first connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the middle part of the first branch and the middle part of the second branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the first connecting portion in the first direction.

[0017] In another embodiment, the middle portion of the first branch bends toward the direction of the second heating segment group, and the middle portion of the second branch bends toward the direction of the direction of the second heating segment group.

[0018] Furthermore, in one embodiment, the extension directions of each of the first heating segments in the same first heating segment group are consistent or arranged in a wavy pattern.

[0019] In a second aspect, one embodiment provides an atomizing core, including a liquid guiding component and a heating element, wherein the liquid guiding component is used to guide the aerosol generating liquid to the heating element;

[0020] The heating element includes:

[0021] First electrode;

[0022] The second electrode, one of the first electrode and the second electrode is used to conduct to the positive electrode, and the other is used to conduct to the negative electrode;

[0023] A heating mesh is electrically connected to both the first and second electrodes. The heating mesh includes a first heating segment group and a second heating segment group, which are connected in parallel. The first heating segment group includes at least two first heating segments connected in series, and the second heating segment group includes at least two second heating segments connected in series. The first heating segments and the second heating segments are separate.

[0024] At least one of the first heating segments includes a first branch and a second branch, the first branch and the second branch being connected in parallel, and the middle portions of the first branch and the second branch being bent in a direction away from each other.

[0025] Furthermore, in one embodiment, at least one of the second heating segments includes a third branch and a fourth branch, the third branch being connected in parallel with the fourth branch, and the middle portions of the third branch and the fourth branch bending in a direction away from each other.

[0026] Furthermore, in one embodiment, each of the first heating segments includes a first branch and a second branch, and each of the second heating segments includes a third branch and a fourth branch, wherein the resistance values ​​of the first branch, the second branch, the third branch, and the fourth branch are all equal.

[0027] In a further embodiment, the heating grid includes heat dissipation strips, the first heating segment group includes a first connecting portion, the second heating segment group includes a second connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the second connecting portion is connected in series between two adjacent second heating segments, and at least one end of the heat dissipation strip is connected to the first connecting portion and the other end is connected to the second connecting portion.

[0028] In a further embodiment, the heating mesh includes heat dissipation strips, the second heating segment group includes a second connecting portion, the second connecting portion is connected in series between two adjacent second heating segments, the middle part of the third branch and the middle part of the fourth branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the second connecting portion in the first direction.

[0029] In a further embodiment, the heating mesh includes heat dissipation strips, the first heating segment group includes a first connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the middle part of the first branch and the middle part of the second branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the first connecting portion in the first direction.

[0030] In another embodiment, the middle portion of the first branch bends toward the direction of the second heating segment group, and the middle portion of the second branch bends toward the direction of the direction of the second heating segment group.

[0031] Furthermore, in one embodiment, the extension directions of each of the first heating segments in the same first heating segment group are consistent or arranged in a wavy pattern.

[0032] Thirdly, in one embodiment, an aerosol generating device is provided, including a device housing and an atomizing core. The device housing has a liquid storage chamber for storing aerosol generating liquid supplied to the atomizing core. The atomizing core includes a liquid guiding element and a heating element, wherein the liquid guiding element is used to guide the aerosol generating liquid to the heating element.

[0033] The heating element includes:

[0034] First electrode;

[0035] The second electrode, one of the first electrode and the second electrode is used to conduct to the positive electrode, and the other is used to conduct to the negative electrode;

[0036] A heating mesh is electrically connected to both the first and second electrodes. The heating mesh includes a first heating segment group and a second heating segment group, which are connected in parallel. The first heating segment group includes at least two first heating segments connected in series, and the second heating segment group includes at least two second heating segments connected in series. The first heating segments and the second heating segments are separate.

[0037] At least one of the first heating segments includes a first branch and a second branch, the first branch and the second branch being connected in parallel, and the middle portions of the first branch and the second branch being bent in a direction away from each other.

[0038] Furthermore, in one embodiment, at least one of the second heating segments includes a third branch and a fourth branch, the third branch being connected in parallel with the fourth branch, and the middle portions of the third branch and the fourth branch bending in a direction away from each other.

[0039] Furthermore, in one embodiment, each of the first heating segments includes a first branch and a second branch, and each of the second heating segments includes a third branch and a fourth branch, wherein the resistance values ​​of the first branch, the second branch, the third branch, and the fourth branch are all equal.

[0040] In a further embodiment, the heating grid includes heat dissipation strips, the first heating segment group includes a first connecting portion, the second heating segment group includes a second connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the second connecting portion is connected in series between two adjacent second heating segments, and at least one end of the heat dissipation strip is connected to the first connecting portion and the other end is connected to the second connecting portion.

[0041] In a further embodiment, the heating mesh includes heat dissipation strips, the second heating segment group includes a second connecting portion, the second connecting portion is connected in series between two adjacent second heating segments, the middle part of the third branch and the middle part of the fourth branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the second connecting portion in the first direction.

[0042] In a further embodiment, the heating mesh includes heat dissipation strips, the first heating segment group includes a first connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the middle part of the first branch and the middle part of the second branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the first connecting portion in the first direction.

[0043] In another embodiment, the middle portion of the first branch bends toward the direction of the second heating segment group, and the middle portion of the second branch bends toward the direction of the direction of the second heating segment group.

[0044] Furthermore, in one embodiment, the extension directions of each of the first heating segments in the same first heating segment group are consistent or arranged in a wavy pattern.

[0045] According to the heating element of the above embodiment, the first heating segment group and the second heating segment group of the heating element are connected in parallel, and in the first heating segment group, at least one first heating segment includes a first branch and a second branch connected in parallel. The two ends of the first branch are respectively connected to the two ends of the second branch, and the middle part is bent in a direction away from each other. This allows the heat of the first branch and the second branch to act on a larger area, thereby improving the problem of poor heating uniformity of the heating element. Attached Figure Description

[0046] Figure 1 This is a partial structural schematic diagram of an aerosol generating device in one embodiment (power supply module not shown);

[0047] Figure 2 This is a schematic diagram of the atomizing core of an aerosol generating device in one embodiment.

[0048] Figure 3 This is a schematic diagram of the structure of the heating element in one embodiment;

[0049] Figure 4 This is a schematic diagram of the structure of the heating mesh after it has been unfolded in one embodiment.

[0050] List of feature names corresponding to the reference numerals in the figure: 1. Device shell; 11. Liquid storage chamber; 2. Atomizing core; 21. Atomizing core shell; 211. Liquid guide hole; 22. Support; 23. Atomizing core seat; 3. Liquid guide component; 4. Heating element; 5. First electrode; 6. Second electrode; 7. Heating mesh; 71. First heating segment group; 711. First heating segment; 7111. First branch; 7112. Second branch; 712. First connecting part; 72. Second heating segment group; 721. Second heating segment; 7211. Third branch; 7212. Fourth branch; 722. Second connecting part; 73. Heat dissipation strip.

[0051] Explanation of reference numerals in parentheses in the accompanying drawings: The feature referred to by the reference numerals in parentheses in the accompanying drawings is the feature represented by both the number inside the parentheses and the number outside the parentheses. Detailed Implementation

[0052] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0053] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0054] In the description herein, it should be understood that the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0056] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, an abutment, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] The embodiments described in the detailed implementation can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different embodiments. In order to avoid unnecessary repetition, the various possible combinations of the embodiments will not be described separately.

[0059] To address the issue of poor heating uniformity in current aerosol generating devices, this application provides a heating element in which at least one heating segment comprises a first branch and a second branch connected in parallel. The parallel connection of the first and second branches increases the number of heating points, and the middle portions of the first and second branches bend away from each other, resulting in a more dispersed distribution of heating points and better heating uniformity. The heating element, atomizing core, and aerosol generating device of this application are further described below with reference to the accompanying drawings.

[0060] In one embodiment, please refer to Figure 1 and Figure 2 The aerosol generating device includes a housing 1 and an atomizing core 2. The atomizing core 2 includes a liquid guiding component 3 and a heating element 4. The liquid guiding component 3 guides the aerosol generating liquid to the heating element 4. The housing 1 has a liquid storage chamber 11 for storing the aerosol generating liquid supplied to the atomizing core 2. The liquid guiding component 3 is a porous component, which can be either liquid-guiding cotton or porous ceramic. In one embodiment, the aerosol generating device further includes a power module (…). Figure 1 (Not shown), the power module supplies power to the atomizing core 2.

[0061] In one embodiment, please refer to Figure 3 and Figure 4 The heating element 4 includes a first electrode 5, a second electrode 6, and a heating mesh 7. One of the first electrode 5 and the second electrode 6 is connected to the positive electrode, and the other is connected to the negative electrode. The heating mesh 7 is electrically connected to both the first electrode 5 and the second electrode 6.

[0062] The heating network 7 includes a first heating segment group 71 and a second heating segment group 72, with the first heating segment group 71 and the second heating segment group 72 connected in parallel; the first heating segment group 71 includes at least two first heating segments 711 connected in series, and the second heating segment group 72 includes at least two second heating segments 721 connected in series, with the first heating segments 711 and the second heating segments 721 being separated.

[0063] At least one first heating section 711 includes a first branch 7111 and a second branch 7112, with the first branch 7111 and the second branch 7112 connected in parallel. The two ends of the first branch 7111 are respectively connected to the two ends of the second branch 7112, and the middle portions of the first branch 7111 and the middle portions of the second branch 7112 are bent in a direction away from each other.

[0064] Since at least one first heating segment 711 includes a first branch 7111 and a second branch 7112 connected in parallel, the first and last ends of the first branch 7111 are respectively connected to the first and last ends of the second branch 7112, and the middle part is bent in a direction away from each other, the heat of the first branch 7111 and the second branch 7112 can be applied to a larger area, thereby improving the problem of poor heating uniformity of the heating element 4.

[0065] It should be noted that the heating grid 7 in this application is an electric heating grid, and the first heating segment group 71 and the second heating segment group 72 generate heat after being energized.

[0066] It should be noted that in this application, the middle portions of the first branch 7111 and the second branch 7112 bend in a direction away from each other, wherein the bent first branch 7111 and the bent second branch 7112 do not protrude from the heating network 7. Specifically, in one embodiment, the middle portion of the first branch 7111 bends towards the second heating section group 72, and the middle portion of the second branch 7112 bends away from the second heating section group 72.

[0067] Of course, in some special cases, the first branch 7111 after bending can also protrude to one side of the heating network 7, and the second branch 7112 after bending can also protrude to the other side of the heating network 7.

[0068] Furthermore, in one embodiment, please refer to Figure 4 At least one second heating section 721 includes a third branch 7211 and a fourth branch 7212, with the third branch 7211 and the fourth branch 7212 connected in parallel. The first end of the third branch 7211 is connected to the first end of the fourth branch 7212, and the last end of the third branch 7211 is connected to the last end of the fourth branch 7212. Furthermore, the middle portions of the third branch 7211 and the middle portions of the fourth branch 7212 are bent in a direction away from each other. This further improves the heating uniformity of the heating mesh 7.

[0069] In one embodiment, please refer to Figure 4 Each first heating segment 711 includes a first branch 7111 and a second branch 7112, and each second heating segment 721 includes a third branch 7211 and a fourth branch 7212. The resistance values ​​of the first branch 7111, the second branch 7112, the third branch 7211, and the fourth branch 7212 are all equal. This ensures more consistent heat generation across the branches, resulting in more uniform heating across the entire heating network 7. In some other embodiments, the first branch 7111, the second branch 7112, the third branch 7211, and the fourth branch 7212 can also have different resistance values, depending on actual needs.

[0070] Of course, in some other embodiments, each first heating segment 711 may include a first branch 7111 and a second branch 7112, and the first heating segment 711 may be an integral structure.

[0071] In one embodiment, please refer to Figure 4 The heating grid 7 includes heat dissipation strips 73, the first heating segment group 71 includes a first connecting part 712, the second heating segment group 72 includes a second connecting part 722, and the second connecting part 722 is connected in series between two adjacent second heating segments 721.

[0072] To further improve the heating uniformity of the heating mesh 7, in one embodiment, please refer to... Figure 4 The first connecting portion 712 is connected in series between two adjacent first heating sections 711. The middle of the first branch 7111 and the middle of the second branch 7112 are arranged at intervals in the first direction. Heat dissipation strips 73 are provided on both sides of the first connecting portion 712 in the first direction. The heat dissipation strips 73 can dissipate the heat generated by the first heating section group 71 in a timely manner, improving the phenomenon of excessive local temperature.

[0073] In one embodiment, please refer to Figure 4 The middle portions of the third branch 7211 and the fourth branch 7212 are spaced apart in the first direction, and the second connecting portion 722 is provided with heat dissipation strips 73 on both sides in the first direction. The heat dissipation strips 73 can dissipate the heat generated by the second heating section group 72 in a timely manner, improving the phenomenon of excessively high local temperature.

[0074] Of course, the heat sink 73 can also connect the first connecting portion 712 and the second connecting portion 722 simultaneously. For one embodiment, please refer to... Figure 4 At least one heat sink 73 is connected at one end to the first connecting portion 712 and at the other end to the second connecting portion 722.

[0075] In one embodiment, please refer to Figure 4 Multiple heat dissipation slats 73, a first connecting portion 712, and a second connecting portion 722 are arranged linearly. In one embodiment, please refer to... Figure 4 The heating mesh 7 is integrally formed, and the specific forming methods include stamping, casting or etching.

[0076] In one embodiment, please refer to Figure 4 The first branch 7111 and the second branch 7112 are arranged in a polygonal or elliptical shape. For details, please refer to [reference needed]. Figure 4 The first branch 7111 and the second branch 7112 are hexagonal. In some other embodiments, the first branch 7111 and the second branch 7112 may also be quadrilateral, pentagonal, heptagonal, etc. Similarly, in one embodiment, please refer to... Figure 4The third branch 7211 and the fourth branch 7212 can also be arranged in a polygonal or elliptical shape.

[0077] Furthermore, in one embodiment, please refer to Figure 4 Each first heating segment 711 in the same first heating segment group 71 extends in the same direction. Specifically, each first heating segment 711 in the same first heating segment group 71 can be arranged in a straight line or in an arc. In some other embodiments, each first heating segment 711 in the same first heating segment group 71 is arranged in a wave-like pattern, that is, two adjacent first heating segments 711 are arranged in a V-shape.

[0078] Similarly, in one embodiment, please refer to Figure 4 In the same second heating segment group 72, the extension directions of each second heating segment 721 are consistent. Specifically, the second heating segments 721 in the same second heating segment group 72 can be arranged in a straight line or in an arc. In some other embodiments, the second heating segments 721 in the same second heating segment group 72 are arranged in a wave-like pattern, that is, two adjacent second heating segments 721 are arranged in a V-shape.

[0079] In one embodiment, please refer to Figure 4 There are two of each of the first heating segment group 71 and the second heating segment group 72. It should be noted that the terms "first" and "second" in the first heating segment group 71 and the second heating segment group 72 used in this application are merely for the convenience of describing the relationship between the heating segment groups and do not constitute a substantial limitation on the structure of the heating segment groups. In fact, the structure of the first heating segment group 71 and the structure of the second heating segment group 72 can be the same or different. Of any two parallel heating segment groups, one can be named the first heating segment group 71, and the other can be named the second heating segment group 72.

[0080] In some other embodiments, the number of heating element groups can be any number other than four, such as two, three, or five.

[0081] For one embodiment, please refer to Figure 3 In one embodiment, the heating mesh 7 is cylindrical, and the liquid guiding element 3 is wrapped around the heating mesh 7. In another embodiment, the heating mesh 7 is planar, and the liquid guiding element 3 is also planar.

[0082] It should be noted that the above embodiments focus on the heating element 4 in this application, while the atomizing core 2 and the aerosol generating device can adopt any feasible method in the prior art. The basic structure of the atomizing core 2 is briefly described below:

[0083] Please refer to Figure 1 and Figure 2The atomizing core 2 includes an atomizing core shell 21, a support 22, and an atomizing core base 23, with the atomizing core shell 21 fixed to the atomizing core base 23. A liquid guiding component 3 is installed between the support 22 and the heating element 4. The atomizing core shell 21 has a liquid guiding hole 211, which connects the liquid guiding component 3 in the atomizing core shell 21 to the liquid storage chamber 11, allowing the aerosol-generated liquid in the liquid storage chamber 11 to enter the liquid guiding component 3 and, guided by the liquid guiding component 3, contact the heating element 4.

[0084] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A heating element, characterized in that, include: First electrode; The second electrode, one of the first electrode and the second electrode is used to conduct to the positive electrode, and the other is used to conduct to the negative electrode; A heating mesh is electrically connected to both the first and second electrodes. The heating mesh includes a first heating segment group and a second heating segment group, which are connected in parallel. The first heating segment group includes at least two first heating segments connected in series, and the second heating segment group includes at least two second heating segments connected in series. The first heating segments and the second heating segments are separate. At least one of the first heating segments includes a first branch and a second branch, the first branch and the second branch being connected in parallel, and the middle portions of the first branch and the second branch being bent in a direction away from each other.

2. The heating element as described in claim 1, characterized in that, At least one of the second heating segments includes a third branch and a fourth branch, the third branch being connected in parallel with the fourth branch, and the middle portions of the third branch and the fourth branch bending in a direction away from each other.

3. The heating element as described in claim 2, characterized in that, Each of the first heating segments includes a first branch and a second branch, and each of the second heating segments includes a third branch and a fourth branch. The resistance values ​​of the first branch, the second branch, the third branch, and the fourth branch are all equal.

4. The heating element as described in claim 2, characterized in that, The heating grid includes heat dissipation strips. The first heating segment group includes a first connecting portion, and the second heating segment group includes a second connecting portion. The first connecting portion is connected in series between two adjacent first heating segments, and the second connecting portion is connected in series between two adjacent second heating segments. At least one end of the heat dissipation strip is connected to the first connecting portion, and the other end is connected to the second connecting portion.

5. The heating element as described in claim 2, characterized in that, The heating grid includes heat dissipation strips, the second heating segment group includes a second connecting portion, the second connecting portion is connected in series between two adjacent second heating segments, the middle part of the third branch and the middle part of the fourth branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the second connecting portion in the first direction.

6. The heating element according to any one of claims 1-4, characterized in that, The heating grid includes heat dissipation strips, the first heating segment group includes a first connecting portion, the first connecting portion is connected in series between two adjacent first heating segments, the middle part of the first branch and the middle part of the second branch are arranged at intervals in a first direction, and the heat dissipation strips are provided on both sides of the first connecting portion in the first direction.

7. The heating element according to any one of claims 1-5, characterized in that, The middle part of the first branch bends toward the second heating segment group, and the middle part of the second branch bends away from the second heating segment group.

8. The heating element according to any one of claims 1-5, characterized in that, The extension directions of each of the first heating segments in the same first heating segment group are consistent or arranged in a wavy pattern.

9. An atomizing core, characterized in that, It includes a liquid guiding component and a heating element as described in any one of claims 1-8, wherein the liquid guiding component is used to guide the aerosol generating liquid to the heating element.

10. An aerosol generating device, characterized in that, The device includes a housing and an atomizing core as described in claim 9, wherein the housing has a liquid storage chamber for storing an aerosol generating liquid supplied to the atomizing core.

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