Heating structure, atomizing core and aerosol generating device
By setting the first and second conductive heating layers on the insulating substrate and designing them to partially overlap on the vertical projection plane, the problems of insufficient heating efficiency and effective heating area of the heating structure are solved, and a more efficient aerosol generation device atomization effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-05-19
AI Technical Summary
The existing heating structure has low heating efficiency and insufficient effective heating area, resulting in low atomization efficiency of the aerosol generation device, and the spacing of the conductive heating layer affects the heating effect.
The design employs a first and second conductive heating layer disposed on an insulating substrate. By partially overlapping the layers on the vertical projection plane, it is ensured that both layers can generate heat. Furthermore, the layers are connected in series or parallel to increase the effective heating area and improve the heating efficiency.
The heating efficiency and effective heating area of the heating structure are improved, enhancing the heating effect on the aerosol generation matrix and thus improving the atomization efficiency of the aerosol generation device.
Smart Images
Figure CN224250739U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of atomization technology, and more specifically, relates to a heating structure, an atomizing core, and an aerosol generating device. Background Technology
[0002] An aerosol generating device is a device used to heat an aerosol generating matrix, causing the matrix to atomize and form an aerosol. The aerosol formed from this atomized matrix can then be inhaled by a user.
[0003] Aerosol generating devices generally include a heating structure, which typically comprises an insulating substrate and a conductive heating layer disposed on the insulating substrate. During operation, the conductive heating layer of the heating structure generates heat when energized, which heats the aerosol generating matrix, causing it to atomize and form aerosols. The aerosols are then released into mist through air channels within the aerosol generating device.
[0004] In some cases, the heating efficiency of the heating structure is low. During the operation of the aerosol generating device, the heating structure mainly heats the aerosol generating matrix through the heat from the side of the heating structure closest to the aerosol generating matrix. However, when the aerosol is atomized with the air in the air passage, the air continuously carries away the heat from the side of the heating structure furthest from the aerosol generating matrix. The heat from the side of the heating structure closest to the aerosol generating matrix is continuously replenished to the side of the heating structure furthest from the aerosol generating matrix. This continuous heat loss affects the atomization efficiency of the aerosol generating device.
[0005] Furthermore, the gaps in the conductive heating layer effectively isolate it from the outside and facilitate heat dissipation. However, these gaps also reduce the effective heating area of the heating structure, affecting its heating effect on the aerosol generation matrix and consequently impacting the atomization efficiency of the aerosol generation device. Utility Model Content
[0006] One of the objectives of this application is to provide a heating structure, an atomizing core, and an aerosol generating device that can improve the heating efficiency and low effective heating area of the heating structure.
[0007] To solve the above-mentioned technical problems, the technical solution adopted in the embodiments of this application is as follows:
[0008] In a first aspect, embodiments of this application provide a heating structure, including:
[0009] Insulating substrate;
[0010] A first conductive heating layer is disposed on one side of the insulating substrate along the thickness direction, and the first conductive heating layer has a first gap.
[0011] The second conductive heating layer is disposed on the side of the insulating substrate away from the first conductive heating layer along the thickness direction; on the projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the second conductive heating layer coincides with at least a portion of the orthographic projection of the first gap.
[0012] In some embodiments, the first conductive heating layer and the second conductive heating layer are connected in series; or, the first conductive heating layer and the second conductive heating layer are connected in parallel.
[0013] In some embodiments, the second conductive heating layer is formed with a second gap; on a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating layer and at least a portion of the orthographic projection of the second gap coincide.
[0014] In some embodiments, the first conductive heating layer includes:
[0015] Multiple first conductive heating elements are spaced apart on an insulating substrate along a first direction, and any two adjacent first conductive heating elements are spaced apart to form a first gap;
[0016] Multiple second conductive heating elements are provided, and any two adjacent first conductive heating elements are connected by a second conductive heating element, so that the multiple first conductive heating elements are connected in series in sequence.
[0017] The second conductive heating layer includes:
[0018] Multiple third conductive heating elements are spaced apart on an insulating substrate along a first direction, and any two adjacent third conductive heating elements are spaced apart by a second gap.
[0019] Multiple fourth conductive heating elements are connected to any two adjacent third conductive heating elements, so that the multiple third conductive heating elements are connected in series in sequence.
[0020] On the projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating element is located within the orthographic projection of the second gap, and at least a portion of the orthographic projection of the third conductive heating element is located within the orthographic projection of the first gap.
[0021] The first direction is perpendicular to the thickness direction.
[0022] In some embodiments, the first conductive heating element and the third conductive heating element are arranged alternately along a first direction.
[0023] In some embodiments, one of the first conductive heating elements of the first conductive heating layer and one of the third conductive heating elements of the second conductive heating layer are connected to conduct electricity.
[0024] In some embodiments, the first conductive heating layer and / or the second conductive heating layer are provided with a heat radiation layer for radiating heat.
[0025] In some embodiments, the first conductive heating layer is printed, coated, welded, or bonded to an insulating substrate;
[0026] And / or, the second conductive heating layer is printed, coated, welded or bonded to the insulating substrate.
[0027] Secondly, embodiments of this application provide an atomizing core, including a heating structure.
[0028] Thirdly, embodiments of this application provide an aerosol generating device, including an atomizing core.
[0029] The beneficial effects of the heating structure, atomizing core, and aerosol generating device provided in this application embodiment are as follows:
[0030] The heating structure provided in this application embodiment has a first conductive heating layer and a second conductive heating layer respectively disposed on opposite sides of an insulating substrate along the thickness direction. This allows both the first and second conductive heating layers to generate heat when energized, thereby heating the aerosol-generating matrix and improving the heating efficiency of the structure. By ensuring that at least a portion of the orthographic projection of the second conductive heating layer coincides with at least a portion of the orthographic projection of the first gap on a projection plane perpendicular to the thickness direction, at least a portion of the second conductive heating layer and the first gap are arranged directly opposite each other along the thickness direction. This allows the area of the heating structure with the first gap to be heated by the second conductive heating layer, effectively increasing the effective heating area of the heating structure. Therefore, the heating structure provided in this application embodiment has high heating efficiency and an effective heating area, which helps improve the heating effect of the heating structure on the aerosol-generating matrix, thus contributing to improving the atomization efficiency of the aerosol-generating device constructed from the heating structure.
[0031] The atomizing core provided in this application adopts the heating structure involved in the above embodiments, which has high heating efficiency and effective heating area, and helps to improve the heating effect of the heating structure on the aerosol generation matrix, thereby helping to improve the atomization efficiency of the atomizing core.
[0032] The aerosol generating device provided in this application, by employing the atomizing core involved in the above embodiments, has high heating efficiency and effective heating area, which helps to improve the heating effect of the heating structure on the aerosol generating matrix, thereby helping to improve the atomization efficiency of the aerosol generating device.
[0033] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0035] Figure 1 Schematic diagram of the heating structure provided in some embodiments of this application;
[0036] Figure 2 This is a schematic diagram of a heating structure provided for other embodiments of this application.
[0037] The following are the labeling elements in the figure:
[0038] 10 - Insulating substrate; 20 - First conductive heating layer; 201 - First gap; 21 - First conductive heating part; 22 - Second conductive heating part; 30 - Second conductive heating layer; 301 - Second gap; 31 - Third conductive heating part; 32 - Fourth conductive heating part; X - First direction; Y - Second direction. Detailed Implementation
[0039] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0040] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.
[0041] Unless otherwise specified, all technical features and optional technical features of the embodiments of this application can be combined with each other to form new technical solutions.
[0042] In the description of the embodiments of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.
[0043] 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.
[0044] In the description of the embodiments of this application, "multiple" means two or more, and unless otherwise explicitly specified, "two or more" includes two. Correspondingly, "multiple groups" means two or more groups, including two groups.
[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "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 or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0046] In the description of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three possibilities: A exists, A and B exist simultaneously, and B exists. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0047] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "proximity" and "adjacent" refer to proximity in location. For example, among three components A1, A2, and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1, meaning A2 is adjacent to B. Alternatively, B can be said to be adjacent to A2; in other words, A2 is adjacent to B. Similarly, when there are multiple components C, namely C1, C2, ... CN, if one component C, such as C2, is closer to component B than the other components C, then B is adjacent to C2; in other words, C2 is adjacent to B.
[0048] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0049] The following detailed description is provided in conjunction with specific accompanying drawings and embodiments:
[0050] Please see Figure 1 , Figure 1 This is a schematic diagram of a heating structure provided in some embodiments of this application. Wherein, Figure 1 In the diagram, the second conductive heating layer 30 is shown in dashed lines. The heating structure provided in this embodiment includes an insulating substrate 10, a first conductive heating layer 20, and a second conductive heating layer 30. The first conductive heating layer 20 is disposed on one side of the insulating substrate 10 along its thickness direction, and a first gap 201 is formed in the first conductive heating layer 20. The second conductive heating layer 30 is disposed on the side of the insulating substrate 10 away from the first conductive heating layer 20 along its thickness direction. On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the second conductive heating layer 30 coincides with at least a portion of the orthographic projection of the first gap 201.
[0051] A heating structure is a structure used to generate heat when electricity is applied. The heat generated by the heating structure is primarily used to heat the aerosol-generating matrix, causing the matrix to atomize and form aerosols.
[0052] The insulating substrate 10 refers to a sheet structure with insulating properties. The insulating substrate 10 can be an insulating metal structure, a ceramic structure, a mica structure, etc.
[0053] Both the first conductive heating layer 20 and the second conductive heating layer 30 are structural layers with conductive properties used for heating. Specifically, both the first conductive heating layer 20 and the second conductive heating layer 30 can carry current and can generate heat when energized.
[0054] The heating structure is used in conjunction with a substrate to form an atomizing core. When used with a substrate, the substrate can be placed on the first conductive heating layer 20 of the heating structure, and the heating structure primarily uses the heat generated by the first conductive heating layer 20 to heat the aerosol generation matrix; alternatively, the substrate can be placed on the second conductive heating layer 30 of the heating structure, and the heating structure primarily uses the heat generated by the second conductive heating layer 30 to heat the aerosol generation matrix. The substrate can be a storage medium for storing the aerosol generation matrix, such as porous ceramics or a liquid storage surface; the substrate can also be a solid aerosol generation matrix.
[0055] The first gap 201 refers to the gap formed on the first conductive heating layer 20. The first gap 201 effectively achieves electrical isolation of the conductive heating layer, ensuring a clear current path for the first conductive heating layer 20, preventing interference with signal transmission, short circuits, or electrical noise; it also helps dissipate heat, avoiding excessive local heat in the heating structure that could lead to performance degradation. Furthermore, it facilitates a compact current path within the first conductive heating layer 20.
[0056] Understandably, the first conductive heating layer 20 and the second conductive heating layer 30 are respectively disposed on opposite sides of the insulating substrate 10 along the thickness direction. Here, the thickness direction refers to the thickness direction of the insulating substrate 10, or it can be the thickness direction of the first conductive heating layer 20, the thickness direction of the second conductive heating layer 30, i.e., the thickness direction of the heating structure. Unless otherwise specified below, the thickness direction can also be interpreted in this way.
[0057] On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the second conductive heating layer 30 and at least a portion of the orthographic projection of the first gap 201 coincide, meaning that at least a portion of the second conductive heating layer 30 and at least a portion of the first gap 201 are arranged facing each other along the thickness direction.
[0058] The heating structure provided in this application embodiment has a first conductive heating layer 20 and a second conductive heating layer 30 respectively disposed on opposite sides of the insulating substrate 10 along the thickness direction, so that both the first conductive heating layer 20 and the second conductive heating layer 30 can generate heat when energized, so as to heat the aerosol to generate a matrix, which helps to improve the heating efficiency of the heating structure.
[0059] It should be noted that when the substrate is located on the first conductive heating layer 20, the second conductive heating layer 30 is connected to the air passage of the aerosol generating device. During the operation of the aerosol generating device, the heating structure mainly heats the aerosol generating matrix through the heat generated by the first conductive heating layer 20 when energized. The aerosol generating matrix is heated and atomized to form aerosol, which is then released into the air passage. During this process, the air in the air passage carries away the heat from the second conductive heating layer 30, and the second conductive heating layer 30 can also generate heat when energized. Therefore, the heat generated by the first conductive heating layer 20 does not need to be replenished to the second conductive heating layer 30, allowing the heat generated by the first conductive heating layer 20 to be used to heat the aerosol generating matrix to the maximum extent. This helps to reduce the heat loss of the first conductive heating layer 20, thereby reducing the heat loss of the conductive heating layer mainly used for heating the aerosol generating matrix, improving the heating efficiency of the heating structure, and thus improving the atomization efficiency of the aerosol generating device.
[0060] When the substrate is located on the second conductive heating layer 30, the first conductive heating layer 20 is connected to the air passage of the aerosol generating device. During the operation of the aerosol generating device, the heating structure mainly heats the aerosol generating matrix through the heat generated by the second conductive heating layer 30 when energized. The aerosol generating matrix is heated and atomized to form aerosol, which is then released with the air in the air passage. During this process, the air in the air passage carries away the heat from the first conductive heating layer 20, and the first conductive heating layer 20 can also generate heat when energized. Therefore, the heat generated by the second conductive heating layer 30 does not need to be replenished to the first conductive heating layer 20, allowing the heat generated by the second conductive heating layer 30 to be used to maximize the heating of the aerosol generating matrix. This helps to reduce the heat loss of the second conductive heating layer 30, thereby reducing the heat loss of the conductive heating layer mainly used for heating the aerosol generating matrix, improving the heating efficiency of the heating structure, and thus improving the atomization efficiency of the aerosol generating device.
[0061] By aligning at least a portion of the orthographic projection of the second conductive heating layer 30 with at least a portion of the orthographic projection of the first gap 201 on a projection plane perpendicular to the thickness direction, the second conductive heating layer 30 and the first gap 201 are arranged facing each other along the thickness direction. This allows the area of the heating structure with the first gap 201 to be heated by the second conductive heating layer 30, effectively increasing the effective heating area of the heating structure. Understandably, the first conductive heating layer 20 with the first gap 201 may not generate sufficient heat, making it difficult to heat the aerosol-generating matrix located in the area of the first gap 201. By arranging at least a portion of the second conductive heating layer 30 facing the first gap 201 along the thickness direction, the area of the heating structure with the first gap 201 can be heated by the second conductive heating layer 30 to generate heat, thereby heating the aerosol-generating matrix in the area of the first gap 201, thus effectively increasing the effective heating area of the heating structure.
[0062] Furthermore, by arranging at least a portion of the second conductive heating layer 30 directly opposite the first gap 201 along the thickness direction, the effective heating area of the heating structure can be increased, which also helps to improve the overall heating uniformity of the heating structure and improve the heating efficiency of the aerosol generation matrix.
[0063] Therefore, the heating structure provided in this application embodiment has high heating efficiency and effective heating area, which helps to improve the heating effect of the heating structure on the aerosol generation matrix, thereby helping to improve the atomization efficiency of the aerosol generation device composed of the heating structure.
[0064] In some embodiments, please refer to Figure 1 Furthermore, in conjunction with other accompanying drawings, the first conductive heating layer 20 and the second conductive heating layer 30 are connected in series.
[0065] Understandably, current can pass through the first conductive heating layer 20 and the second conductive heating layer 30 in sequence, so that the first conductive heating layer 20 and the second conductive heating layer 30 are energized and generate heat.
[0066] This design helps simplify the overall structure of the heating element.
[0067] In some embodiments, the first conductive heating layer 20 and the second conductive heating layer 30 are arranged in parallel.
[0068] This configuration allows the currents on the first conductive heating layer 20 and the second conductive heating layer 30 to flow in parallel, so that the first conductive heating layer 20 and the second conductive heating layer 30 can generate heat through their respective currents.
[0069] In some embodiments, please refer to Figure 2 And in conjunction with other accompanying figures. Figure 2 This is a schematic diagram of the heating structure provided in some other embodiments of this application. Figure 2 In the diagram, the second conductive heating layer 30 is shown in dashed lines. The second conductive heating layer 30 has a second gap 301. On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating layer 20 and at least a portion of the orthographic projection of the second gap 301 coincide.
[0070] The second gap 301 refers to the gap formed on the second conductive heating layer 30. The second gap 301 effectively achieves electrical isolation of the conductive heating layer, ensuring a clear current path for the second conductive heating layer 30, preventing interference with signal transmission, short circuits, or electrical noise; it also helps dissipate heat, avoiding excessive local heat in the heating structure that could lead to performance degradation. Furthermore, it facilitates a more compact current path in the first conductive heating layer 20.
[0071] On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating layer 20 and at least a portion of the orthographic projection of the second gap 301 coincide, meaning that at least a portion of the first conductive heating layer 20 and at least a portion of the second gap 301 are arranged facing each other along the thickness direction.
[0072] This configuration allows the area with the first gap 201 in the heating structure to be heated through the second conductive heating layer 30, and the area with the second gap 301 to be heated through the first conductive heating layer 20. This effectively increases the effective heating area of the heating structure and also helps improve the overall heating uniformity of the heating structure. This, in turn, helps improve the heating effect of the heating structure on the aerosol generation matrix, thereby improving the atomization efficiency of the aerosol generation device composed of the heating structure.
[0073] In other embodiments, the second conductive heating layer 30 may be a heat sheet without gaps.
[0074] In some embodiments, please refer to Figure 2 And in conjunction with other accompanying drawings, the first conductive heating layer 20 includes a plurality of first conductive heating elements 21 and a plurality of second conductive heating elements 22. The plurality of first conductive heating elements 21 are spaced apart along a first direction X on the insulating substrate 10, and any two adjacent first conductive heating elements 21 are spaced apart to form a first gap 201. Any two adjacent first conductive heating elements 21 are connected by a second conductive heating element 22, so that the plurality of first conductive heating elements 21 are connected in series.
[0075] The first conductive heating element 21 and the second conductive heating element 22 are both parts of the first conductive heating layer 20. Multiple first conductive heating elements 21 and multiple second conductive heating elements 22 are arranged in a pattern of first conductive heating element 21, second conductive heating element 22, first conductive heating element 21, second conductive heating element 22... so that current can pass sequentially through the first conductive heating element 21, second conductive heating element 22, first conductive heating element 21, second conductive heating element 22... thereby allowing current to pass sequentially through multiple first conductive heating elements 21.
[0076] Understandably, the first conductive heating layer 20 is formed with a plurality of first gaps 201, and the plurality of first gaps 201 are spaced apart along the first direction X.
[0077] In some embodiments, please refer to Figure 2 And in conjunction with other accompanying drawings. The second conductive heating layer 30 includes a plurality of third conductive heating elements 31 and a plurality of fourth conductive heating elements 32. The plurality of third conductive heating elements 31 are spaced apart along the first direction X on the insulating substrate 10, and a second gap 301 is formed between any two adjacent third conductive heating elements 31. A fourth conductive heating element 32 is connected between any two adjacent third conductive heating elements 31, so that the plurality of third conductive heating elements 31 are connected in series.
[0078] Both the third conductive heating element 31 and the fourth conductive heating element 32 are parts of the second conductive heating layer 30. Multiple third conductive heating elements 31 and multiple fourth conductive heating elements 32 are arranged in a pattern of third conductive heating element 31, fourth conductive heating element 32, third conductive heating element 31, fourth conductive heating element 32..., so that current can pass sequentially through the third conductive heating element 31, fourth conductive heating element 32, third conductive heating element 31, fourth conductive heating element 32... and thus sequentially through multiple third conductive heating elements 31.
[0079] Understandably, the second conductive heating layer 30 is formed with a plurality of first gaps 201 and a plurality of second gaps 301 are spaced apart along the first direction X.
[0080] The first direction X is perpendicular to the thickness direction. The heating structure may also have a second direction Y, which is perpendicular to the first direction X and perpendicular to the thickness direction.
[0081] On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating element 21 lies within the orthographic projection of the second gap 301, and at least a portion of the orthographic projection of the third conductive heating element 31 lies within the orthographic projection of the first gap 201. This means that at least a portion of the first conductive heating element 21 is directly opposite to at least a portion of the second gap 301, and at least a portion of the third conductive heating element 31 is directly opposite to at least a portion of the first gap 201. In other words, in the first direction X, a third conductive heating element 31 is provided between two adjacent first conductive heating elements 21, and a first conductive heating element 21 is provided between two adjacent third conductive heating elements 31.
[0082] This configuration allows the area with the first gap 201 in the heating structure to be heated by the second conductive heating layer 30, and the area with the second gap 301 to be heated by the first conductive heating layer 20. This effectively increases the effective heating area of the heating structure and also helps improve the overall heating uniformity. Furthermore, the structures of the first conductive heating layer 20 and the second conductive heating layer 30 are very simple, which is beneficial for the molding of the heating structure.
[0083] In some embodiments, please refer to Figure 2 Furthermore, in conjunction with other accompanying drawings, the first conductive heating element 21 and the third conductive heating element 31 are arranged alternately along the first direction X.
[0084] Understandably, among the plurality of first conductive heating elements 21 and the plurality of third conductive heating elements 31, each first conductive heating element 21 and each third conductive heating element 31 are arranged alternately along the first direction X. That is, the plurality of first conductive heating elements 21 and the plurality of third conductive heating elements 31 are arranged along the first direction X in the pattern of first conductive heating element 21, third conductive heating element 31, first conductive heating element 21, third conductive heating element 31...
[0085] With this configuration, multiple first conductive heating elements 21 and multiple third conductive heating elements 31 can be evenly arranged along the first direction X, which helps to improve the heating uniformity of the heating structure.
[0086] In some embodiments, please refer to Figure 2 And in conjunction with other accompanying drawings, the first conductive heating element 21 and the third conductive heating element 31 are arranged at intervals along the first direction X.
[0087] In some embodiments, please refer to the following: Figure 1 and Figure 2 And in conjunction with other accompanying drawings. One of the first conductive heating elements 21 of the first conductive heating layer 20 and one of the third conductive heating elements 31 of the second conductive heating layer 30 are connected to conduct electricity.
[0088] This configuration allows the first conductive heating layer 20 and the second conductive heating layer 30 to be connected in series, and makes the structure of the heating structure very simple.
[0089] In some embodiments, the first conductive heating layer 20 is provided with a thermal radiation layer for radiating heat.
[0090] A thermal radiation layer is a structural layer used for radiating heat.
[0091] This configuration can improve the heat radiation efficiency on the first conductive heating layer 20, thereby helping to improve the heat generation efficiency of the heating structure.
[0092] In some embodiments, the second conductive heating layer 30 is provided with a thermal radiation layer for radiating heat.
[0093] A thermal radiation layer is a structural layer used for radiating heat.
[0094] This configuration can improve the heat radiation efficiency on the second conductive heating layer 30, thereby helping to improve the heat generation efficiency of the heating structure.
[0095] In some embodiments, the thermal radiation layer includes at least one of a graphene layer, a silicon carbide layer, and an indium silicide layer.
[0096] Understandably, a thermal radiation layer refers to a structural layer made of a material with high infrared emissivity, which helps to improve the thermal radiation efficiency of the heating structure, thereby increasing the heating efficiency of the heating structure.
[0097] In some embodiments, the first conductive heating layer 20 is printed, coated, welded or bonded to the insulating substrate 10.
[0098] The first conductive heating layer 20 can be a printed circuit layer printed on the insulating substrate 10, such as a thick film printed circuit.
[0099] The first conductive heating layer 20 can also be a coated circuit layer coated on the insulating substrate 10.
[0100] The first conductive heating layer 20 can also be a metal or metal alloy structure with conductive heating properties, and is fixed to the insulating substrate 10 by welding, bonding or other methods. For example, the first conductive heating layer 20 can be a heating wire.
[0101] In some embodiments, the second conductive heating layer 30 is printed, coated, welded or bonded to the insulating substrate 10.
[0102] The second conductive heating layer 30 can be a printed circuit layer printed on the insulating substrate 10, such as a thick film printed circuit.
[0103] The second conductive heating layer 30 can also be a coated circuit layer coated on the insulating substrate 10.
[0104] The second conductive heating layer 30 can also be a metal or metal alloy structure with conductive heating properties, and is fixed to the insulating substrate 10 by welding, bonding or other methods. For example, the second conductive heating layer 30 can be a heating wire or a heating element.
[0105] This arrangement allows the first conductive heating layer 20 and the second conductive heating layer 30 to be flexibly arranged on the insulating substrate 10, thus enabling the fabrication of the heating structure in a very flexible manner.
[0106] The atomizing core provided in this embodiment includes a heating structure. Optionally, the atomizing core further includes a substrate, and the heating structure is disposed on the substrate. The atomizing core is used to heat the aerosol generation matrix, wherein the aerosol generation matrix includes a solid or liquid aerosol generation matrix. The heating structure in this embodiment is the same as the heating structures in the above embodiments; please refer to the relevant descriptions of the heating structures in the above embodiments for details, which will not be repeated here.
[0107] The atomizing core provided in this application adopts the heating structure involved in the above embodiments, which has high heating efficiency and effective heating area, and helps to improve the heating effect of the heating structure on the aerosol generation matrix, thereby helping to improve the atomization efficiency of the atomizing core.
[0108] The aerosol generating device provided in this application includes an atomizing core. The atomizing core in this embodiment is the same as that in the previous embodiments; please refer to the relevant descriptions of the atomizing cores in the previous embodiments for details, which will not be repeated here.
[0109] The aerosol generating device provided in this application, by employing the atomizing core involved in the above embodiments, has high heating efficiency and effective heating area, which helps to improve the heating effect of the heating structure on the aerosol generating matrix, thereby helping to improve the atomization efficiency of the aerosol generating device.
[0110] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A heating structure, characterized in that, include: Insulating substrate; A first conductive heating layer is disposed on one side of the insulating substrate along the thickness direction, and the first conductive heating layer has a first gap. The second conductive heating layer is disposed on the side of the insulating substrate away from the first conductive heating layer along the thickness direction; on the projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the second conductive heating layer coincides with at least a portion of the orthographic projection of the first gap.
2. The heating structure according to claim 1, characterized in that, The first conductive heating layer and the second conductive heating layer are connected in series; or, the first conductive heating layer and the second conductive heating layer are connected in parallel.
3. The heating structure according to claim 1, characterized in that, The second conductive heating layer has a second gap; on a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating layer and at least a portion of the orthographic projection of the second gap coincide.
4. The heating structure according to claim 3, characterized in that, The first conductive heating layer includes: Multiple first conductive heating elements are spaced apart on the insulating substrate along a first direction, and any two adjacent first conductive heating elements are spaced apart to form the first gap; Multiple second conductive heating elements are provided, and any two adjacent first conductive heating elements are connected by a second conductive heating element, so that the multiple first conductive heating elements are connected in series in sequence. The second conductive heating layer includes: Multiple third conductive heating elements are spaced apart on the insulating substrate along a first direction, and any two adjacent third conductive heating elements are spaced apart by the second gap. Multiple fourth conductive heating elements are provided, and any two adjacent third conductive heating elements are connected by the fourth conductive heating elements, so that the multiple third conductive heating elements are connected in series in sequence. On a projection plane perpendicular to the thickness direction, at least a portion of the orthographic projection of the first conductive heating element lies within the orthographic projection of the second gap, and at least a portion of the orthographic projection of the third conductive heating element lies within the orthographic projection of the first gap. Wherein, the first direction is perpendicular to the thickness direction.
5. The heating structure according to claim 4, characterized in that, The first conductive heating element and the third conductive heating element are arranged alternately along the first direction.
6. The heating structure according to claim 4, characterized in that, One of the first conductive heating elements of the first conductive heating layer and one of the third conductive heating elements of the second conductive heating layer are connected to conduct electricity.
7. The heating structure according to any one of claims 1-6, characterized in that, The first conductive heating layer and / or the second conductive heating layer are provided with a heat radiation layer for radiating heat.
8. The heating structure according to any one of claims 1-6, characterized in that, The first conductive heating layer is printed, coated, welded, or bonded to the insulating substrate; And / or, the second conductive heating layer is printed, coated, welded or bonded to the insulating substrate.
9. An atomizing core, characterized in that, include: The heating structure according to any one of claims 1-8.
10. An aerosol generating device, characterized in that, Includes the atomizing core according to claim 9.