Heating assembly and aerosol generating device

Abstract

The utility model provides a heating assembly and an aerosol generating device. The heating assembly comprises a heating substrate; the heating layer is arranged on the heating base body, the heating base body is wound to form a cylinder, the heating layer comprises a first electrode, a second electrode and a plurality of heating units, the heating units are distributed at intervals in the axis direction of the winding direction of the heating base body, and each heating unit extends in the winding direction of the heating base body; and each heating unit is electrically connected with the first electrode and the second electrode. The heating assembly is provided with the multiple heating units extending in the winding direction of the heating base body, so that the area of the heating area is increased, the arrangement condition of the heating units can be set according to temperature distribution needed for heating the aerosol generating product, and the temperature distribution of the heating assembly is more uniform and controllable.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to a heating component of an aerosol generating device. Background Art

[0002] The aerosol generating device that heats but does not burn includes a heating component that can be inserted into the interior of an aerosol generating product to heat the aerosol generating product. The heating component can be provided with a heating layer on a support to heat the aerosol generating product.

[0003] In the past, the conductive coating of the heating component used a material with a high resistance temperature coefficient, and the aerosol generating device used the resistance temperature characteristics of the material to control the temperature. However, the temperature difference between the area without the conductive coating and the area with the conductive coating of the heating component was large. The temperature of the area farther away from the conductive pin was higher, and the temperature of the area closer to the conductive pin was lower. The temperature distribution of the heating component between the two conductive pins was uneven. In addition, the heating component is usually fixedly connected to the bracket, so that the area of ​​the heating component close to the bracket dissipates heat faster. The area of ​​the heating component close to the bracket dissipates heat faster than the area far from the bracket. The temperature of the shell is high, and the temperature distribution of the heating component is difficult to control. Utility Model Content

[0004] To solve the problems of small heating area, slow temperature rise and uncontrollable temperature distribution of heating components in the past.

[0005] The present application provides a heating component, comprising: a heating base; a heating layer, wherein the heating layer is arranged on the heating base, and the heating base is wound to form a column, the heating layer comprises a first electrode, a second electrode and a plurality of heating units, the plurality of heating units are spaced apart along the axial direction of the winding direction of the heating base, each of the heating units extends along the winding direction of the heating base, and each of the heating units is electrically connected to the first electrode and the second electrode.

[0006] The present application provides a heating component, wherein the dimension of the heating unit in the axial direction of the winding direction of the heating base is the width of the heating unit, and at least one heating unit has a different width from the other heating units; or

[0007] The dimensions of each of the heat generating units in the axial direction of the winding direction of the heat generating base are the same.

[0008] The present application provides a heating component, in which the widths of the plurality of heating units gradually change in the axial direction of the winding direction of the heating base.

[0009] The present application provides a heating component, wherein the distance between any two adjacent heating units in the axial direction of the winding direction of the heating substrate is L, wherein at least one L is not equal to the other L; or

[0010] In the axial direction of the winding direction of the heat-generating base, the distances between any two adjacent heat-generating units are equal.

[0011] The present application provides a heating component, in which the density of arrangement of the plurality of heating units gradually changes in the axial direction of the winding direction of the heating base.

[0012] The present application provides a heating component, wherein one end of each heating unit is electrically connected to the first electrode, and the other end is electrically connected to the second electrode.

[0013] The present application provides a heating component, wherein at least one of the first electrode and the second electrode extends along an axial direction of a winding direction of the heating substrate.

[0014] The present application provides a heating component. When the heating base is wound to form a columnar structure, the heating base includes at least one winding layer.

[0015] The present application provides a heating component, wherein the heating layer is wound with a number of turns of 0.8-3 turns.

[0016] The present application provides a heating component. When the heating substrate is wound to form a columnar structure, the heating layer is not provided on the innermost winding layer or the outermost winding layer.

[0017] The present application provides a heating component, wherein when at least one of the first electrode and the second electrode is located on a winding layer other than the outermost circle, or when at least one of the first electrode and the second electrode is located on the inner surface of the winding layer of the outermost circle, a first connection hole is provided on the corresponding first electrode or the second electrode, and a second connection hole is provided on the heating base at a position corresponding to the first connection hole.

[0018] The first connection hole and the second connection hole are used to electrically connect corresponding conductive pins.

[0019] The present application provides a heating component, at least one of the first electrode and the second electrode includes a first segment and a second segment connected to the first segment, the first segment is used to electrically connect the heating unit, the second segment extends along the winding direction of the heating base, and the first connection hole is provided on the second segment.

[0020] The present application provides a heating component, wherein the first connecting hole is a circular hole, an elliptical hole, an oblong hole or a long strip hole.

[0021] The present application provides a heating component, when at least one of the first electrode and the second electrode is located on the outer surface of the outermost winding layer, the first electrode or the second electrode is electrically connected to the corresponding conductive pin.

[0022] The present application provides a heating component, wherein the heating layer further includes a first conductive unit and a second conductive unit, wherein the first conductive unit is located between the heating unit and the first electrode so that the heating unit is electrically connected to the first electrode, and the second conductive unit is located between the heating unit and the second electrode so that the heating unit is electrically connected to the second electrode.

[0023] The present application provides a heating component, in which the heating base includes a first edge and a second edge relative to each other in the axial direction of the winding direction of the heating base, a distance L1 between the heating unit closest to the first edge and the first edge, and a distance L2 between the heating unit closest to the second edge and the second edge, and L1 and L2 are not equal.

[0024] The present application provides a heating component, further comprising a support member, and the heating substrate is wound around the support member to form a column.

[0025] The present application provides a heating component, wherein the support member includes an inserting portion and a supporting portion connected to the inserting portion, the heating base is wound around the supporting portion, and the inserting portion protrudes from the heating base.

[0026] The present application provides a heating component, wherein the inserting portion is conical.

[0027] The present application provides a heating component, wherein the length of the heating base in the axial direction of the winding direction of the heating base is greater than or equal to the length of the supporting portion.

[0028] The present application provides a heating component, wherein the length of the heating base in the axial direction of its winding direction is smaller than the length of the supporting portion.

[0029] The present application provides a heating component, wherein the length of the support portion in the axial direction of the winding direction of the heating base is greater than or equal to 3.5 mm.

[0030] The present application provides a heating component, wherein the support member is provided with an avoidance portion, the avoidance portion extends along the axis of the support member, and the edge of the heating base is provided at the avoidance portion.

[0031] The present application provides a heating component, wherein the heating layer is arranged on the surface of the heating base.

[0032] The present application provides a heating component, wherein the heating layer is arranged on a radially inward surface or a radially outward surface of the heating base.

[0033] The present application provides a heating component, wherein the dimension of the heating layer along the axial direction of the winding direction is 6mm-15mm; and / or the dimension of the heating layer along the axial direction of the winding direction is 8mm-11mm.

[0034] The present application provides a heating component, wherein the dimension of the heating unit along the axial direction of the winding direction is greater than or equal to 0.20 mm.

[0035] The present application provides a heating component, wherein the distance between two adjacent heating units in the axial direction of the winding direction of the heating base is greater than or equal to 0.20 mm.

[0036] The present application provides a heating component, wherein the thickness of the heating layer is 5μm-30μm; and / or the thickness of the heating layer is 8μm-20μm; and / or the thickness of the heating layer is 10μm-18μm; and / or the thickness of the heating layer is 12μm-18μm.

[0037] The present application provides a heating component, wherein the thickness of the first electrode or the second electrode is 5μm-30μm; and / or the thickness of the first electrode or the second electrode is 8μm-20μm; and / or the thickness of the first electrode or the second electrode is 10μm-18μm; and / or the thickness of the first electrode or the second electrode is 12μm-18μm.

[0038] The present application provides a heating component, wherein the thickness of the heating base is 0.08 mm-0.35 mm; and / or the thickness of the heating base is 0.10 mm-0.20 mm.

[0039] The present application provides a heating component, the diameter of which is greater than or equal to 2 mm.

[0040] The present application provides a heating component, wherein the heating layer contains tungsten, silver or palladium.

[0041] The present application provides a heating component, wherein the first electrode and the second electrode include silver paste electrodes.

[0042] The present application provides an aerosol generating device, comprising a battery assembly and the above-mentioned heating assembly, wherein the battery assembly is used to provide electrical energy to the heating assembly.

[0043] The heating component provided in the present application has multiple heating units extending along the winding direction of the heating substrate, so that the area of ​​the heating region is increased, and the setting of the heating units can be set according to the required temperature distribution of the heated aerosol-generating product, so that the temperature distribution of the heating component is more uniform and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0045] Figure 1 A schematic diagram of a heating component according to an embodiment of the present application;

[0046] Figure 2 A schematic diagram of a heating component according to an embodiment of the present application;

[0047] Figure 3 A schematic diagram of a heating component according to an embodiment of the present application;

[0048] Figure 4 A schematic diagram of a support member according to an embodiment of the present application;

[0049] Figure 5 A schematic diagram of a heating component according to an embodiment of the present application;

[0050] Figure 6 A schematic diagram of a heating component according to an embodiment of the present application;

[0051] Figure 7 A schematic diagram of a method for preparing a heating component according to an embodiment of the present application;

[0052] Figure 8 This is a schematic diagram of an aerosol generating device according to one embodiment of the present application.

[0053] In the picture:

[0054] 10. Heating components;

[0055] 1. Heating base; 11. Second connection hole; 12. First edge; 13. Second edge;

[0056] 2. Heating layer; 21. First electrode; 22. Second electrode; 23. Heating unit; 24. First connection hole; 25. First segment; 26. Second segment; 27. First conductive unit; 28. Second conductive unit;

[0057] 3. Support member; 31. Insertion portion; 32. Support portion; 33. Avoidance portion;

[0058] 20. Battery components;

[0059] 100. Aerosol generating device. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0061] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting the quantity or order of the technical features indicated relative to importance or implicitly indicating the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment that includes a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0062] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be one or more intermediate elements in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0064] It should be noted that the embodiments of the present application provide a heating component and an aerosol generating device including the heating component. The aerosol generating device can be used in conjunction with an aerosol generating product, so that the aerosol generating product generates aerosol.

[0065] An aerosol-generating article may include a mouthpiece, a connecting segment, and a tobacco segment capable of generating an aerosol. The connecting segment is located between the mouthpiece and the tobacco segment and is configured to direct the aerosol toward the mouthpiece. The mouthpiece is adapted to be held in a user's mouth, and the user inhales the aerosol by sucking on the mouthpiece. The tobacco segment in the aerosol-generating article may contain an aerosol-generating substrate.

[0066] As used herein, the term "aerosol generating substrate" refers to a substrate that can release volatile substances to form an inhalable aerosol therefrom. The aerosol generating substrate may include a tobacco-containing material that contains volatile tobacco flavor compounds that are released from the substrate after heating. Specifically, the aerosol generating substrate may be an aerosol generating substrate containing tobacco or an aerosol generating substrate containing solid tobacco. Alternatively, the aerosol generating substrate may include a non-tobacco material. The aerosol generating substrate may also include an aerosol forming agent. Examples of suitable aerosol forming agents are glycerol and propylene glycol.

[0067] Optionally, the aerosol-generating substrate may contain additional tobacco or non-tobacco volatile flavor compounds that are released upon heating the aerosol-generating substrate. The aerosol-generating substrate may also contain microcapsules, for example, containing additional tobacco or non-tobacco volatile flavor compounds, and such microcapsules may melt during heating of the solid aerosol-generating substrate.

[0068] The aerosol-generating article may be a generally longitudinally extending rod-shaped structure. The mouthpiece may be disposed adjacent to a proximal end of the aerosol-generating article. The tobacco segment may be disposed adjacent to a distal end of the aerosol-generating article.

[0069] The heating element releases heat into the aerosol-generating article, causing the aerosol-generating substrate to produce volatile substances. The volatile substances combine with air flowing into the aerosol-generating substrate to form an aerosol. The air flowing into the aerosol-generating substrate and the aerosol generated by the aerosol-generating substrate can pass through the proximal end of the aerosol-generating substrate and be inhaled into the mouth of the user.

[0070] The present application provides a heating component 10, such as Figure 1As shown, it includes: a heating base 1 and a heating layer 2. The heating layer 2 is arranged on the heating base 1, and the heating base 1 is wound to form a column. The heating layer 2 includes a first electrode 21, a second electrode 22 and a plurality of heating units 23. The plurality of heating units 23 are spaced apart along the axis of the winding direction of the heating base 1. Each heating unit 23 extends along the winding direction of the heating base 1, and each heating unit 23 is electrically connected to the first electrode 21 and the second electrode 22.

[0071] The heating component 10 provided in the present application has a plurality of heating units 23 extending along the winding direction of the heating substrate 1, so that the area of ​​the heating region is increased, and the setting of the heating units 23 can be set according to the required temperature distribution of the heated aerosol-generating product, so that the temperature distribution of the heating component 10 is more uniform and controllable.

[0072] In one embodiment of the present application, the heating unit 23 is made of a material with a higher resistivity than the first electrode 21 and the second electrode 22, and is used to generate heat to heat the aerosol-generating product. The first electrode 21 and the second electrode 22 are made of a material with a lower resistivity to guide the current. In one embodiment of the present application, the resistance of the first electrode 21 and the second electrode 22 is much smaller than the resistance of the heating unit 23. For example, the resistance of the heating unit 23 is three times or more than ten times the resistance of the first electrode 21 or the second electrode 22. In one embodiment of the present application, the width of the first electrode 21 or the second electrode 22 is greater than the width of the heating unit 23. The width of the heating unit 23 may be the width of the heating unit 23 in the axial direction of the winding direction of the heating substrate 1. The width of the first electrode 21 or the second electrode 22 may be the width of the first electrode 21 or the second electrode 22 in the winding direction of the heating substrate 1.

[0073] In one embodiment of the present application, the dimension of the heating unit 23 in the axial direction of the winding direction of the heating substrate 1 is the width of the heating unit 23, and at least one heating unit 23 has a different width from the other heating units 23. In this way, the resistance distribution on the heating substrate 1 can be adjusted according to needs, and the temperature field distribution of the heating substrate 1 can be made to meet the different heating requirements of the aerosol generating substrate.

[0074] For example, in one embodiment of the present application, the two ends of the heating base 1 are respectively a first end and a second end in the axial direction of the winding direction of the heating base 1. The width of the heating unit 23 located at the first end of the heating base 1 is larger, and the width of the heating unit 23 located at the second end of the heating base 1 is smaller. This makes the heating unit 23 located at the first end of the heating base 1 have a smaller resistance and generate more heat, while the heating unit 23 located at the second end of the heating base 1 has a larger resistance and generates less heat. In this way, the temperature is higher near the first end of the heating base 1, and lower near the second end of the heating base 1, thereby meeting the requirement of different temperature distributions at the two ends of the heating base 1.

[0075] For example, in one embodiment of the present application, the width of the heating unit 23 located in the middle of the heating base 1 is larger, and the width of the heating units located on both sides of the heating base 23 is smaller, so that the resistance of the heating unit 23 located in the middle of the heating base 1 is smaller and generates more heat, while the resistance of the heating units located on both sides of the heating base 23 is larger and generates less heat.

[0076] In one embodiment of the present application, each heating unit 23 has the same size in the axial direction of the winding direction of the heating base 1 , so that each heating unit 23 on the heating base 1 generates substantially the same amount of heat.

[0077] In one embodiment of the present application, the widths of the plurality of heating units 23 gradually change in the axial direction of the winding direction of the heating base 1. It should be noted that the width of the heating unit 23 is the width dimension of the heating unit 23 in the axial direction of the winding direction of the heating base 1. For example, in one embodiment of the present application, the widths of the plurality of heating units 23 gradually decrease or increase in the axial direction of the winding direction of the heating base 1. For another example, in one embodiment of the present application, the plurality of heating units 23 are divided into different groups in sequence in the axial direction of the winding direction of the heating base 1, and each group has a plurality of heating units 23. The number of heating units 23 in any two groups can be the same or different; the widths of the heating units 23 in the same group are the same, and the widths of the heating units 23 in different groups are different. In the axial direction of the winding direction of the heating base 1, the widths of the heating units 23 gradually decrease or increase regionally according to the division of the groups.

[0078] In one embodiment of the present application, the dimension of the heating unit 23 in the axial direction of the winding direction is greater than or equal to 0.2 mm, that is, in the axial direction of the winding direction of the heating base 1, the width of the heating unit 23 is greater than or equal to 0.2 mm. In one embodiment of the present application, the width of the heating unit 23 is 0.2 mm-0.7 mm. In one embodiment of the present application, the width of the heating unit 23 is 0.2 mm-0.35 mm. In one embodiment of the present application, the dimension of the heating unit 23 in the axial direction of the winding direction can be 0.20 mm, 0.23 mm, 0.25 mm, 0.27 mm, 0.28 mm, 0.29 mm, 0.30 mm, 0.31 mm, 0.32 mm, 0.33 mm, 0.34 mm, 0.35 mm, 0.50 mm, 0.55 mm, 0.60 mm or 0.70 mm.

[0079] In one embodiment of the present application, the number of heating units 23 is fourteen, the width of the first to fourth heating units 23 is 0.31 mm, the width of the fifth to seventh heating units 23 is 0.30 mm, the width of the eighth to tenth heating units 23 is 0.29 mm, the width of the eleventh to twelfth heating units 23 is 0.28 mm, and the width of the thirteenth to fourteenth heating units 23 is 0.27 mm; the distance between the two adjacent heating units 23 of the first heating unit 23 and the eleventh heating unit 23 is 0.27 mm, the distance between the eleventh heating unit 23 and the twelfth heating unit 23 is 0.35 mm, the distance between the twelfth heating unit 23 and the thirteenth heating unit 23 is 0.4 mm, and the distance between the thirteenth heating unit 23 and the fourteenth heating unit 23 is 0.44 mm; the axial dimension of the heating layer 2 along the winding direction is 8 mm.

[0080] In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the distance between any two adjacent heating units 23 is L, where at least one L is not equal to the other L. In one embodiment of the present application, the distance between two adjacent heating units 23 at one end of the heating base 1 is smaller, and the distance between two adjacent heating units 23 at the other end of the heating base 1 is larger, so that the heating units 23 at one end of the heating component 10 are densely distributed, and the heating units at the other end of the heating component 10 are sparsely distributed.

[0081] In one embodiment of the present application, the distance between two adjacent heating units 23 in the middle of the heating base 1 is small, while the distance between two adjacent heating units 23 at the ends of the heating base 1 is large, so that the heating units 23 in the middle of the heating component 10 are concentrated, while the heating units 23 at the ends of the heating component 10 are sparsely distributed. Therefore, the distribution of the temperature field of the heating component 10 can be adjusted by adjusting the density of the multiple heating units 23.

[0082] In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the spacing between any two adjacent heating units 23 is equal. That is, the multiple heating units 23 are evenly distributed. In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the density of the arrangement of the multiple heating units 23 gradually changes. It should be noted that the "density of the arrangement of the multiple heating units 23" here can be understood as the distribution of the multiple heating units 23. When the distribution of the multiple heating units 23 is relatively concentrated (the spacing between any two adjacent heating units 23 is small), the distribution of the multiple heating units 23 is relatively dense; when the distribution of the multiple heating units 23 is relatively dispersed (the spacing between any two adjacent heating units 23 is large), the distribution of the multiple heating units 23 is relatively sparse. The "relatively concentrated" and "relatively dispersed" here can be understood as relative concepts. In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the density of the multiple heating units 23 gradually decreases.

[0083] In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the spacing between any two adjacent heating units 23 is equal, and the multiple heating units 23 are divided into different groups. The widths of the heating units 23 in the same group are the same, and the widths of the heating units 23 in different groups gradually decrease.

[0084] In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the distance between two adjacent heating units 23 is greater than or equal to 0.20mm. In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the distance between two adjacent heating units 23 is 0.2mm-0.7mm. In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the distance between two adjacent heating units 23 is 0.2mm-0.35mm. In one embodiment of the present application, in the axial direction of the winding direction of the heating base 1, the distance between two adjacent heating units 23 can be 0.20mm, 0.23mm, 0.25mm, 0.27mm, 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.50mm, 0.55mm, 0.60mm or 0.70mm.

[0085] In one embodiment of the present application, one end of each heating unit 23 is electrically connected to the first electrode 21, and the other end is electrically connected to the second electrode 22. In one embodiment of the present application, when the heating base 1 is in the unfolded state, the first electrode 21 and the second electrode 22 are located at both ends of the heating unit 23, and the plurality of heating units 23 are connected in parallel. In other embodiments of the present application, when the heating base 1 is in the unfolded state, the first electrode 21 is connected to the middle of the heating unit 23, and the second electrode 22 is connected to one end of the heating unit 23. In other embodiments of the present application, when the heating base 1 is in the unfolded state, the first electrode 21 and the second electrode 22 are both located in the middle of the heating unit 23.

[0086] In one embodiment of the present application, at least one of the first electrode 21 and the second electrode 22 extends along the axis of the winding direction of the heat-generating substrate 1. In one embodiment of the present application, the heat-generating unit 23 extends along the winding direction. In one embodiment of the present application, when the heat-generating substrate 1 is in the unfolded state, the extension direction of the first electrode 21 and the second electrode 22 is substantially perpendicular to the extension direction of the heat-generating unit 23.

[0087] In one embodiment of the present application, when the heating base 1 is wound to form a columnar structure, the heating base 1 includes at least one layer of winding, so that the heating base 1 can be formed into a columnar shape after winding. The heating base 1 has a good supporting effect, which facilitates the arrangement of the heating layer 2 on the surface of the heating base 1. During winding, the heating layer 2 can be wound onto the radially inner surface of the winding layer, or the heating layer can be wound onto the radially outer surface of the winding layer.

[0088] It should be noted that the term "winding layer" herein can be understood as a cylindrical structure formed when the heating base 1 is wound. When the heating base 1 is wound multiple times, a corresponding number of winding layers can be formed. In one embodiment of the present application, the number of winding layers of the heating base 1 can be 1, 1.5, 1.8, 2, 2.2, 3, etc.

[0089] In one embodiment of the present application, the number of turns of the heating layer 2 is 0.8-3 turns. In one embodiment of the present application, the number of turns of the heating layer 2 is 0.8. At this time, when the heating base 1 is wound, the two ends of the heating unit 23 are still separated by a certain distance. The two ends of the heating unit 23 are respectively provided with a first electrode 21 and a second electrode 22, which facilitates the external current to enter the heating unit 23. In the process of heating the heating unit 23, the heat will radiate between the two ends of the heating unit 23, so that the heat of the heating component 10 can still be evenly distributed in the circumferential direction. In one embodiment of the present application, the number of turns of the heating layer 2 is 1, 2 or 3, so that the heating layer 2 is evenly distributed on the axis and in the circumferential direction, so that the heating of the heating component 10 is more uniform.

[0090] In one embodiment of the present application, when the heating base 1 is wound to form a columnar structure, the heating layer 2 is not provided on the innermost winding layer or the outermost winding layer. In one embodiment of the present application, when the heating base 1 is wound to form a columnar structure, the heating layer 2 is not provided on the innermost winding layer, so that the innermost winding layer of the heating base 1 supports the outer winding layer of the heating base 1, and the innermost winding layer of the heating base 1 forms a accommodating cavity for accommodating aerosol generating products. In one embodiment of the present application, when the heating base 1 is wound to form a columnar structure, the heating layer 2 is not provided on the outermost winding layer, and when the heating layer 2 is located on the radially outward surface of the heating base 1, the outermost circle of the heating base 1 without the heating layer 2 can insulate and protect the heating layer 2 on the inner circle winding layer of the heating base 1.

[0091] In one embodiment of the present application, when at least one of the first electrode 21 and the second electrode 22 is located on a winding layer that is not the outermost circle, or at least one of the first electrode 21 and the second electrode 22 is located on the inner surface of the winding layer of the outermost circle, a first connection hole 24 is provided on the corresponding first electrode 21 or the second electrode 22, and a second connection hole 11 is provided at a position corresponding to the first connection hole 24 on the heating base 1. The first connection hole 24 and the second connection hole 11 are used to electrically connect the corresponding conductive pins.

[0092] In one embodiment of the present application, a connector is provided in the first connection hole 24. The connector includes silver paste, solder, etc., which facilitates the connection between the first electrode 21 or the second electrode 22 and the conductive pin. In one embodiment of the present application, both the first connection hole 24 and the second connection hole 11 are provided with a connector. The connector includes silver paste, solder, etc., which facilitates the connection between the first electrode 21 or the second electrode 22 and the conductive pin.

[0093] In one embodiment of the present application, at least one of the first electrode 21 and the second electrode 22 includes a first segment 25 and a second segment 26 connected to the first segment 25. The first segment 25 is used to electrically connect to the heating unit 23, the second segment 26 extends along the winding direction of the heating base 1, and the first connection hole 24 is provided on the second segment 26. In one embodiment of the present application, the first segment 25 extends along the axial direction of the winding direction, and the second segment 26 extends along the winding direction, so that when the heating base 1 is wound, the first electrode 21 or the second electrode 22 retains a certain length in the winding direction, so that the second connection hole 11 of the heating base 1 is easily connected to the second segment 26.

[0094] In one embodiment of the present application, the first connection hole 24 is provided in the second section 26. In one embodiment of the present application, the cross-sectional area of ​​the first connection hole 24 is larger than the cross-sectional area of ​​the second connection hole 11, so that after the heating base 1 is wound, the projection of the second connection hole 11 is at least partially located within the first connection hole 24, facilitating connection of the first electrode 21 or the second electrode 22 to the conductive pin.

[0095] In one embodiment of the present application, the first connection hole 24 is a circular hole, an elliptical hole, an oblong hole, or an elongated hole. In one embodiment of the present application, the second connection hole 11 is a circular hole.

[0096] In one embodiment of the present application, when at least one of the first electrode 21 and the second electrode 22 is located on the outer surface of the outermost winding (i.e., the radially outer surface of the winding), the first electrode 21 or the second electrode 22 is electrically connected to the corresponding conductive pin.

[0097] In one embodiment of the present application, Figure 1 As shown, when the heating layer 2 is located on the radially inner and outer surfaces of the heating base 1 (that is, the radially inner or outer surface of the heating base 1 in the winding direction), and the number of turns of the heating base 1 is 2 turns, the first electrode 21 located on the inner turn of the heating base 1 includes a first section 25 and a second section 26 connected to the first section 25. The first section 25 is used to electrically connect the heating unit 23, and the second section 26 extends along the winding direction of the heating base 1. The second electrode 22 is located on the inner surface of the outermost turn of the winding layer. The second section 26 and one end of the second electrode 22 are provided with a first connection hole 24, and a second connection hole 11 is provided at a position of the heating base 1 corresponding to the first connection hole.

[0098] In one embodiment of the present application, Figure 2 As shown, the heat-generating layer 2 further includes a first conductive unit 27 and a second conductive unit 28. The first conductive unit 27 is located between the heat-generating unit 23 and the first electrode 21 to electrically connect the heat-generating unit 23 to the first electrode 21. The second conductive unit 28 is located between the heat-generating unit 23 and the second electrode 22 to electrically connect the heat-generating unit 23 to the second electrode 22. The first conductive unit 27 has a large contact area with the first electrode 21, which reduces the contact resistance between the first electrode 21 and the heat-generating unit 23. The second conductive unit 28 has a large contact area with the second electrode 22, which reduces the contact resistance between the second electrode 22 and the heat-generating unit 23.

[0099] In one embodiment of the present application, the first conductive unit 27 and the second conductive unit 28 are made of the same material as the heating unit 23, but are wider than the first conductive unit 27 and the second conductive unit 28, and thus have a lower resistance. In one embodiment of the present application, the first conductive unit 27 and the second conductive unit 28 are disposed at both ends of the heating unit 23, so that multiple heating units are connected in parallel.

[0100] In one embodiment of the present application, the heating base 1 includes a first edge 12 and a second edge 13 relative to each other in the axial direction of the winding direction of the heating base 1. The spacing L1 between the heating unit 23 closest to the first edge 12 and the first edge 12, and the spacing L2 between the heating unit 23 closest to the second edge 13 and the second edge 13 are unequal. In one embodiment of the present application, L1 is smaller than L2, so that the heating unit 23 is located on the side of the heating base 1 close to the first edge 12, so that the heating area on the heating component 10 is concentrated on the side close to the first edge 12.

[0101] In one embodiment of the present application, Figure 3-Figure 4 As shown, the heating component 10 may further include a support member 3 , and the heating base 1 is wound around the support member 3 to form a column. The support member 3 supports the heating base 1 and increases the structural strength of the heating component 10 .

[0102] In other embodiments of the present application, the heating component 10 may not be provided with the support member 3 , and the heating base 1 may serve to support the heating layer 2 .

[0103] In one embodiment of the present application, the support member 3 may include an inserting portion 31 and a supporting portion 32 connected to the inserting portion 31 . The heat generating base 1 is wound around the supporting portion 32 , and the inserting portion 31 protrudes from the heat generating base 1 .

[0104] In one embodiment of the present application, the heating base 1 is rolled into a hollow tube, the support portion 3 is inserted into the hollow tube structure, and the insertion portion 31 is used to guide the aerosol generating product so that the heating component 10 is inserted into the interior of the aerosol generating product.

[0105] In one embodiment of the present application, the inserting portion 31 is tapered to facilitate insertion of the heating component 10 into the interior of the aerosol generating article. In one embodiment of the present application, the supporting member 3 is umbrella-shaped.

[0106] In one embodiment of the present application, the length of the heating base 1 in the axial direction of its winding direction is greater than or equal to the length of the support portion 32, and the heating base 1 has sufficient supporting strength for the heating layer 2. The support member 3 is mainly provided to the heating component 10 for inserting the insertion portion 31 inside the solvent-generating product, and the insertion portion 31 is connected to the heating base 1 through the support portion 32.

[0107] In one embodiment of the present application, Figure 5-6 As shown, the support member 3 may further be provided with an escape portion 33, which extends along the axis of the support member 3. The starting edge of the winding of the heating base 1 may be provided at the escape portion 33. In one embodiment of the present application, the starting point of the winding of the heating base 1 is located at the escape portion 33, and the escape portion 33 serves to limit and accommodate the starting portion of the heating base 1.

[0108] In one embodiment of the application, the heating substrate 1 is ceramic, which is formed by sintering a cast sheet, and the cast sheet includes ceramic powder, solvent, dispersant, plasticizer and functional additives.

[0109] It should be noted that there is a certain height difference between the end point of the heating substrate winding and the inner winding layer of the heating substrate winding, which makes the outer surface of the heating substrate after winding uneven. Based on this, in one embodiment of the present application, the outer surface of the heating substrate 1 after winding can be formed into a flat surface through an isostatic pressing process.

[0110] In one embodiment of the present application, if the heating base 1 is wound to form a hollow tube, the heating base 1 is wound around a winding jig and then subjected to an isostatic pressing process to make the outer surface of the wound heating base 1 smooth. The winding jig is then removed and the support member 3 is installed.

[0111] In one embodiment of the present application, the heat-generating layer 2 is disposed on the surface of the heat-generating base 1. In other embodiments of the present application, the heat-generating layer 2 is disposed in an inner interlayer of the heat-generating base 1.

[0112] In one embodiment of the present application, the heat-generating layer 2 is provided on the radially inward surface or the radially outward surface of the heat-generating base 1 .

[0113] In one embodiment of the present application, the dimension of the heating layer 2 along the axial direction of the winding direction is 6 mm to 15 mm. In one embodiment of the present application, the dimension of the heating layer 2 along the axial direction of the winding direction is 8 mm to 11 mm. In one embodiment of the present application, the dimension of the heating layer 2 along the axial direction of the winding direction is 6 mm, 7 mm, 7.5 mm, 8 mm, 8.8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm.

[0114] In one embodiment of the present application, the size of the heating layer 2 in the axis direction of the winding direction is equal to or less than the length of the tobacco segment of the aerosol generating article, and the corresponding heating region of the heating layer 2 is equal to or less than the length of the tobacco segment. In one embodiment of the present application, the size of the heating layer 2 in the axis direction of the winding direction is equal to or less than the length of the portion of the aerosol generating article excluding the filter segment, and the corresponding heating region of the heating layer 2 is equal to or less than the length of the portion of the aerosol generating article excluding the filter segment.

[0115] In one embodiment of the present application, the size of the heating unit 23 in the winding direction is an integer multiple of the circumference of the support portion 32. In one embodiment of the present application, the size of the heating unit 23 in the winding direction is 1, 2, 3, 4, etc. times the circumference of the support portion 32.

[0116] In one embodiment of the present application, the thickness of the heating layer 2 is 5 μm to 30 μm. In one embodiment of the present application, the thickness of the heating layer 2 is 8 μm to 18 μm. In one embodiment of the present application, the thickness of the heating layer 2 is 5 μm, 6 μm, 7 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 25 μm, 27 μm, 28 μm, 30 μm.

[0117] In one embodiment of the present application, the thickness of the heating unit 23 is 5 μm to 30 μm. In one embodiment of the present application, the thickness of the heating unit 23 is 8 μm to 20 μm. In one embodiment of the present application, the thickness of the heating unit 23 is 10 μm to 18 μm. In one embodiment of the present application, the thickness of the heating unit 23 is 12 μm to 18 μm. In one embodiment of the present application, the thickness of the heating unit 23 is 5 μm, 6 μm, 7 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 25 μm, 27 μm, 28 μm, 30 μm.

[0118] In one embodiment of the present application, the thickness of the first conductive unit 27 or the second conductive unit 28 is 5 μm to 30 μm. In one embodiment of the present application, the thickness of the first conductive unit 27 or the second conductive unit 28 is 8 μm to 20 μm. In one embodiment of the present application, the thickness of the first conductive unit 27 or the second conductive unit 28 is 10 μm to 18 μm. In one embodiment of the present application, the thickness of the first conductive unit 27 or the second conductive unit 28 is 12 μm to 18 μm. In one embodiment of the present application, the thickness of the first conductive unit 27 or the second conductive unit 28 is 5 μm, 6 μm, 7 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 25 μm, 27 μm, 28 μm, 30 μm.

[0119] In an embodiment of the present application, the first conductive unit 27, the second conductive unit 28 and the heat generating unit 23 have the same thickness.

[0120] In an embodiment of the present application, the first electrode 21 or the second electrode 22 has a thickness of 5-30 μm. In an embodiment of the present application, the first electrode 21 or the second electrode 22 has a thickness of 8-20 μm. In an embodiment of the present application, the first electrode 21 or the second electrode 22 has a thickness of 10-18 μm. In an embodiment of the present application, the first electrode 21 or the second electrode 22 has a thickness of 12-18 μm. In an embodiment of the present application, the first electrode 21 or the second electrode 22 has a thickness of 5 μm, 6 μm, 7 μm, 8 μm, 10 μm, 12 μm, 15 μm, 18 μm, 20 μm, 25 μm, 27 μm, 28 μm, 30 μm.

[0121] In an embodiment of the present application, the heat generating substrate 1 has a thickness of 0.08-0.35 mm; in an embodiment of the present application, the heat generating substrate 1 has a thickness of 0.10-0.20 mm. In an embodiment of the present application, the heat generating substrate 1 has a thickness of 0.08 mm, 0.10 mm, 0.12 mm, 0.15 mm, 0.18 mm, 0.20 mm, 0.25 mm, 0.28 mm, 0.30 mm, 0.33 mm, 0.35 mm.

[0122] In an embodiment of the present application, the heat generating assembly 10 has a diameter of 2 mm or more. In an embodiment of the present application, the diameter of the heat generating assembly 10 is related to the diameter of the aerosol generating article; when the heat generating assembly 10 is centrally heated, the diameter of the heat generating assembly 10 is smaller than the diameter of the aerosol generating article; when the heat generating assembly 10 is peripherally heated, the diameter of the heat generating assembly 10 is larger than the diameter of the aerosol generating article. In an embodiment of the present application, the diameter of the heat generating assembly 10 is 2 mm, 2.13 mm, 2.15 mm, 2.20 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 6 mm, 7 mm, 8 mm, 8.5 mm.

[0123] Another embodiment of the present application provides a method for manufacturing a heat generating assembly, as shown in Figure 7 The method comprises:

[0124] obtaining a cast sheet as a heat generating substrate;

[0125] printing a heat generating layer on the surface of the heat generating substrate;

[0126] winding the cast sheet to form a green body; and sintering the green body to obtain the heat generating assembly.

[0127] In one embodiment of the present application, the step of printing a heating layer on the surface of a heating substrate specifically includes:

[0128] A plurality of heating units are printed on the surface of the heating substrate, and the plurality of heating units are arranged at intervals;

[0129] A first electrode and a second electrode are printed on both ends of the plurality of heating units respectively.

[0130] In one embodiment of the present application, before the cast sheet is wound to form a green body, a support member is provided, and the cast sheet is wound along the circumference of the support member. In one embodiment of the present application, when the cast sheet is wound along the circumference of the support member, the support member can be machined to form an escape portion, so that the starting end of the cast sheet can be received at the escape portion and winding can begin, thereby avoiding interference between the second turn of the cast sheet during the winding process and the starting end of the cast sheet, and avoiding the problem of cracking at the intersection of the second turn of the cast sheet during the winding process and the starting end of the cast sheet after sintering.

[0131] In one embodiment of the present application, after the cast sheet is wound to form a green billet, a support member is provided, and the support member is inserted into the green billet. In one embodiment of the present application, the cast sheet is wound along a winding jig, and is detached from the winding jig after being wound to form a green billet. In one embodiment of the present application, after the cast sheet is wound to form a green billet, a support member is provided, and the support member is inserted into the green billet, the support member includes a supporting portion and an inserting portion, the supporting portion is inserted into the green billet, the inserting portion is exposed outside the green billet, and is used to guide the heating component to be inserted into the aerosol generating product, wherein the length of the support portion along the axial direction is less than the length of the green billet along the axial direction, at this time, the green billet has a certain structural strength after sintering, and the support member provides the heating component with an inserting portion for inserting into the aerosol generating product.

[0132] In one embodiment of the present application, the cast sheet is wound at least once. In one embodiment of the present application, the cast sheet is wound 1, 2 or 3 times.

[0133] In one embodiment of the present application, the step of sintering the green compact to obtain the heating component specifically includes:

[0134] First sintering;

[0135] After cooling, the second sintering is carried out.

[0136] In one embodiment of the present application, the first sintering process is used to sinter the heating unit, the first electrode and the second electrode on the surface of the heating substrate, and the second sintering process is used to sinter the solder to facilitate the connection of the first electrode and the second electrode to the conductive pin.

[0137] In one embodiment of the present application, a plurality of heating units are printed on the surface of the heating substrate and then dried for about 30 minutes, and then a first electrode and a second electrode are printed at both ends of the plurality of heating units and then dried for about 30 minutes.

[0138] In one embodiment of the present application, after the second sintering, the heating element is coated with a protective medium and then sintered a third time to form a protective layer. The protective layer can enhance the surface structural strength of the heating element and also insulate the heating element from the outside. In one embodiment of the present application, the protective layer includes an enamel layer and an anti-stick coating.

[0139] In one embodiment of the present application, the cast sheet may include a high-temperature cast sheet or a low-temperature cast sheet. It should be noted that the sintering temperature of the high-temperature cast sheet is higher than that of the low-temperature cast sheet. In one embodiment of the present application, the sintering temperature of the high-temperature cast sheet is 1500°C-1600°C, and the sintering temperature of the low-temperature cast sheet is 800°C-1000°C.

[0140] In one embodiment of the present application, the cast sheet comprises a high-temperature cast sheet, and the high-temperature cast sheet comprises silica, alumina, zirconia, aluminum nitride, silicon nitride, or silicon carbide. In one embodiment of the present application, the high-temperature cast sheet comprises zirconium oxide-toughened alumina ceramic. In this case, the heating element may be tungsten slurry, and the temperature of the first sintering is 1500°C-1600°C. In one embodiment of the present application, when the heating element is tungsten slurry, the atmosphere of the first sintering is a reducing atmosphere.

[0141] In one embodiment of the present application, the cast sheet includes a low-temperature cast sheet, and the low-temperature cast sheet includes glass powder and one or more of aluminum oxide, zirconium oxide, aluminum nitride, or silicon carbide. In one embodiment of the present application, the low-temperature cast sheet includes a low-temperature co-fired ceramic substrate. In this case, the heating unit can be a silver-palladium paste, and the temperature of the first sintering is 800°C-1000°C or 850°C-950°C. In one embodiment of the present application, when the heating unit is a silver-palladium paste, the first sintering can be performed in an air atmosphere.

[0142] In one embodiment of the present application, after the first sintering, the preparation method of the heating component also includes: punching a first connecting hole at one end of the first electrode and the second electrode, filling the first connecting hole with silver paste, and then performing a second sintering. The second sintering temperature is 800℃-1000℃, and the silver paste facilitates the connection of the first electrode and the second electrode to the conductive pin.

[0143] In one embodiment of the present application, when at least one of the first electrode and the second electrode is located on a winding layer other than the outermost circle, or at least one of the first electrode and the second electrode is located on the inner surface of the winding layer of the outermost circle, it is also necessary to open a second connection hole at the first connection hole corresponding to the heating substrate, fill the first connection hole and the second connection hole with silver paste, and then perform a second sintering. The second sintering temperature is 800℃-1000℃. The first connection hole and the second connection hole are used to electrically connect the corresponding conductive pins, and the silver paste facilitates the connection of the first electrode and the second electrode to the conductive pins.

[0144] In one embodiment of the present application, after the cast sheet is wound to form a green body, the method further includes performing an isostatic pressing process on the green body. The isostatic pressing process can mechanically form the outer surface of the heating component into a uniform plane, so that the heating component is Figure 5 The status becomes Figure 6 status.

[0145] In one embodiment of the present application, before printing the first electrode and the second electrode at both ends of the plurality of heating units to form a cast sheet, the method may further include printing the first conductive unit and the second conductive unit at both ends of the heating unit. In one embodiment of the present application, the first conductive unit and the second conductive unit are made of the same material as the heating unit, but the width of the first conductive unit and the second conductive unit is larger, so the resistance of the first conductive unit and the second conductive unit is smaller and less heat is generated. The contact area between the first conductive unit and the first electrode is larger, so that the contact resistance between the first electrode and the heating unit is reduced, and the contact area between the second conductive unit and the second electrode is larger, so that the contact resistance between the second electrode and the heating unit is reduced.

[0146] In one embodiment of the present application, before printing the first electrode and the second electrode, the process further includes printing a first transition layer and a second transition layer on the surfaces of the first conductive unit and the second conductive unit. The first transition layer makes the contact between the first conductive layer and the first electrode closer and more secure, and the second transition layer makes the contact between the second conductive layer and the second electrode closer and more secure.

[0147] One embodiment of the present application further provides an aerosol generating device 100, such as Figure 8 As shown, it includes a battery assembly 20 and the above-mentioned heating assembly 10, and the battery assembly 20 provides electrical energy to the heating assembly 10.

[0148] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A heating component, characterized in that: include: Heating substrate; A heating layer is provided on the heating base, the heating base is wound to form a column, the heating layer includes a first electrode, a second electrode and a plurality of heating units, the plurality of heating units are spaced apart along the axial direction of the winding direction of the heating base, each heating unit extends along the winding direction of the heating base, and each heating unit is electrically connected to the first electrode and the second electrode.

2. The heating component according to claim 1, characterized in that The dimension of the heating unit in the axial direction of the winding direction of the heating substrate is the width of the heating unit, and at least one heating unit has a different width from the other heating units; or, The dimensions of each of the heat generating units in the axial direction of the winding direction of the heat generating base are the same.

3. The heating component according to claim 1, characterized in that The widths of the plurality of heat generating units gradually change in the axial direction of the winding direction of the heat generating base.

4. The heating component according to claim 1, characterized in that In the axial direction of the winding direction of the heating substrate, the distance between any two adjacent heating units is L, wherein at least one L is not equal to the other L; or In the axial direction of the winding direction of the heat-generating base, the distances between any two adjacent heat-generating units are equal.

5. The heating component according to claim 1, characterized in that In the axial direction of the winding direction of the heat-generating base, the density of arrangement of the plurality of heat-generating units gradually changes.

6. The heating component according to claim 1, characterized in that One end of each heating unit is electrically connected to the first electrode, and the other end is electrically connected to the second electrode.

7. The heating component according to claim 6, characterized in that At least one of the first electrode and the second electrode extends along an axial direction of a winding direction of the heat generating substrate.

8. The heating component according to claim 1, characterized in that When the heat generating base is wound to form a columnar structure, the heat generating base includes at least one winding layer.

9. The heating component according to claim 8, characterized in that: The heating layer is wound around 0.8 to 3 turns.

10. The heating component according to claim 8, characterized in that: When the heat generating substrate is wound to form a columnar structure, the heat generating layer is not provided on the innermost winding layer or the outermost winding layer.

11. The heating component according to claim 8, characterized in that When at least one of the first electrode and the second electrode is located on a winding layer other than the outermost circle, or at least one of the first electrode and the second electrode is located on the inner surface of the winding layer of the outermost circle, a first connection hole is provided on the corresponding first electrode or the second electrode, and a second connection hole is provided on the heating base at a position corresponding to the first connection hole. The first connection hole and the second connection hole are used to electrically connect corresponding conductive pins.

12. The heating component according to claim 11, characterized in that: At least one of the first electrode and the second electrode includes a first segment and a second segment connected to the first segment, the first segment is used to electrically connect the heating unit, the second segment extends along the winding direction of the heating substrate, and the first connection hole is provided on the second segment.

13. The heating component according to claim 12, characterized in that: The first connecting hole is a circular hole, an elliptical hole, an oblong hole or a long strip hole.

14. The heating component according to claim 8, characterized in that When at least one of the first electrode and the second electrode is located on the outer surface of the outermost winding layer, the first electrode or the second electrode is electrically connected to the corresponding conductive pin.

15. The heating component according to claim 6, characterized in that: The heating layer further includes a first conductive unit and a second conductive unit, wherein the first conductive unit is located between the heating unit and the first electrode so that the heating unit is electrically connected to the first electrode, and the second conductive unit is located between the heating unit and the second electrode so that the heating unit is electrically connected to the second electrode.

16. The heating component according to claim 1, characterized in that In the axial direction of the winding direction of the heating base, the heating base includes a first edge and a second edge relative to each other, a distance L1 between the heating unit closest to the first edge and the first edge, and a distance L2 between the heating unit closest to the second edge and the second edge, and L1 and L2 are not equal.

17. The heating component according to claim 1, characterized in that A support member is also included, and the heat-generating substrate is wound around the support member to form a column.

18. The heating component according to claim 17, characterized in that: The support member includes an inserting portion and a supporting portion connected to the inserting portion, the heat generating base is wound around the supporting portion, and the inserting portion protrudes from the heat generating base.

19. The heating component according to claim 18, characterized in that The inserting portion is tapered.

20. The heating component according to claim 18, characterized in that In the axial direction of the winding direction of the heat generating base, the length of the heat generating base is greater than or equal to the length of the supporting portion.

21. The heating component according to claim 18, characterized in that The length of the heat generating base in the axial direction of the winding direction is smaller than the length of the supporting portion.

22. The heating component according to claim 18, characterized in that The length of the support portion in the axial direction of the winding direction of the heat generating base is greater than or equal to 3.5 mm.

23. The heating component according to claim 17, characterized in that The support member is provided with an escape portion, the escape portion extends along the axis of the support member, and the edge of the heat generating base is arranged at the escape portion.

24. The heating component according to claim 1, characterized in that The heat generating layer is arranged on the surface of the heat generating base.

25. The heating component according to claim 1, characterized in that The heat generating layer is provided on a radially inward surface or a radially outward surface of the heat generating base.

26. The heating component according to claim 1, characterized in that The dimension of the heat-generating layer in the axial direction along the winding direction is 6 mm to 15 mm; and / or the dimension of the heat-generating layer in the axial direction along the winding direction is 8 mm to 11 mm.

27. The heating component according to claim 1, characterized in that The dimension of the heating unit along the axial direction of the winding direction is greater than or equal to 0.20 mm.

28. The heating component according to claim 1, characterized in that In the axial direction of the winding direction of the heat-generating substrate, the distance between two adjacent heat-generating units is greater than or equal to 0.20 mm.

29. The heating component according to claim 1, characterized in that The thickness of the heating layer is 5 μm-30 μm; and / or the thickness of the heating layer is 8 μm-20 μm; and / or the thickness of the heating layer is 10 μm-18 μm; and / or the thickness of the heating layer is 12 μm-18 μm.

30. The heating component according to claim 1, characterized in that The thickness of the first electrode or the second electrode is 5μm-30μm; and / or the thickness of the first electrode or the second electrode is 8μm-20μm; and / or the thickness of the first electrode or the second electrode is 10μm-18μm; and / or the thickness of the first electrode or the second electrode is 12μm-18μm.

31. The heating component according to claim 1, characterized in that The thickness of the heating substrate is 0.08 mm to 0.35 mm; and / or the thickness of the heating substrate is 0.10 mm to 0.20 mm.

32. The heating component according to claim 1, characterized in that The diameter of the heating component is greater than or equal to 2 mm.

33. The heating component according to claim 1, characterized in that The heating layer contains tungsten, silver or palladium.

34. The heating component according to claim 1, characterized in that The first electrode and the second electrode include silver paste electrodes.

35. An aerosol generating device, characterized in that It comprises a battery assembly and the heating assembly according to any one of claims 1 to 34, wherein the battery assembly is used to provide electrical energy to the heating assembly.

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