Heating structure and electronic atomizer

Abstract

The utility model provides a heating structure and an electronic atomizer, the heating structure comprises a heating structure, the heating structure is applied to the electronic atomizer, the heating structure comprises a first insulation sheet, the first insulation sheet is wound to be cylindrical and forms a containing space in a surrounding mode, and a heating body is arranged on the side, away from the containing space, of the first insulation sheet; the second insulating sheet is arranged on the periphery of the first insulating sheet in a surrounding mode, and a pair of conductors are correspondingly arranged on the side, facing the first insulating sheet, of the second insulating sheet; wherein the heating body comprises a plurality of first connecting ends and a plurality of second connecting ends, and the second insulating sheet is correspondingly attached to the first insulating sheet, so that one conductor is correspondingly connected with the plurality of first connecting ends, and the other conductor is correspondingly connected with the plurality of second connecting ends. According to the heating structure provided by the invention, the corresponding connection of the heating body and the pair of conductors can be realized by correspondingly attaching the first insulating sheet and the second insulating sheet, so that the connection time of the heating body and the conductors is saved, and the manufacturing efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic atomizers, and in particular relates to a heating structure and an electronic atomizer. Background Art

[0002] The working principle of the electronic vaporizer is to power the heating component through a battery, use the heating component to heat the liquid, and evaporate the liquid into steam. After the user inhales the steam, substances such as nicotine are absorbed into the body, thus producing an experience similar to smoking.

[0003] Existing electronic atomizer heating components typically use multiple metal heating wires. The battery is connected to each of these wires via a pair of conductors, forming a conductive loop. Because the conductors must be aligned with each end of the heating wire, and the large number of heating wires, manufacturing is time-consuming and inefficient. Utility Model Content

[0004] The embodiments of the present application provide a heating structure and an electronic atomizer to solve the problems of the existing electronic atomizer in which the conductor needs to be aligned when connected to one end of each metal heating wire, and the number of metal heating wires is large, resulting in long manufacturing time and low efficiency.

[0005] The present invention provides a heating structure for use in an electronic atomizer. The heating structure includes:

[0006] a first insulating sheet wound into a cylindrical shape and surrounding a receiving space, wherein a heating element is provided on a side of the first insulating sheet facing away from the receiving space;

[0007] A second insulating sheet is arranged around the outer periphery of the first insulating sheet, and a pair of conductors are respectively provided on a side of the second insulating sheet facing the first insulating sheet;

[0008] Wherein, the heating element includes multiple first connection ends and multiple second connection ends, and the second insulating sheet is correspondingly fitted with the first insulating sheet so that one conductor is correspondingly connected to multiple first connection ends, and another conductor is correspondingly connected to multiple second connection ends.

[0009] Optionally, a plurality of the first connection ends are distributed at intervals along a first direction, a plurality of the second connection ends are distributed at intervals along a second direction, one of the conductors extends correspondingly along the first direction, and another of the conductors extends correspondingly along the second direction.

[0010] Optionally, the first direction and the second direction are the same.

[0011] Optionally, the heating body includes multiple bundles of heating units, which are arranged at intervals along the axial direction of the first insulating sheet, and each bundle of the heating units extends along the circumference of the first insulating sheet, and each bundle of the heating units includes a first connecting end and a second connecting end opposite to each other.

[0012] Optionally, a plurality of insulating heat-conducting regions are provided on a side of the first insulating sheet facing the second insulating sheet, and one insulating heat-conducting region is sandwiched between each of two adjacent bundles of the heating units.

[0013] Optionally, the heating element includes a plurality of bundles of heating units, which are staggered and wound in a mesh shape, and the mesh-shaped plurality of bundles of heating units include a plurality of first connection ends and a plurality of second connection ends that are relatively arranged along the circumference of the first insulating sheet.

[0014] Optionally, the heating body includes multiple bundles of heating units, each bundle of the heating units is rectangular and has an opening, each bundle of the heating units includes a first connecting end and a second connecting end opposite to each other through the opening, multiple bundles of the heating units are arranged in sequence at intervals, and multiple openings are distributed at intervals along the same direction.

[0015] Optionally, a support tube is further included, the first insulating sheet is sleeved on the support tube, and the hardness of the support tube is higher than that of the first insulating sheet.

[0016] Optionally, a first positioning mark is provided on the first insulating sheet, and a second positioning mark is correspondingly provided on the second insulating sheet. When the first insulating sheet and the second insulating sheet are affixed, the first positioning mark and the second positioning mark are correspondingly affixed.

[0017] The present application also provides an electronic atomizer, comprising:

[0018] case;

[0019] The heating structure as mentioned above is arranged in the shell.

[0020] The heating structure provided in the embodiment of the present application is configured such that a heating element is arranged on a first insulating sheet and a pair of conductors is arranged on a second insulating sheet, and the heating element and the pair of conductors are arranged in correspondence with each other. Therefore, corresponding connections between the heating element and the pair of conductors can be achieved by correspondingly fitting the first insulating sheet and the second insulating sheet. There is no need to connect the pair of conductors to the multiple first connection ends and the multiple second connection ends of the heating element one by one, which greatly saves the connection time between the heating element and the pair of conductors and improves manufacturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0022] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0023] Figure 1 This is a schematic diagram of the first structure of the first insulating sheet and the heating element provided in an embodiment of the present application.

[0024] Figure 2 This is an exploded view of the first insulating sheet and the heating element provided in an embodiment of the present application.

[0025] Figure 3 This is a schematic diagram of the first structure of the second insulating sheet and the conductor provided in an embodiment of the present application.

[0026] Figure 4 This is an exploded view of the second insulating sheet and the conductor provided in an embodiment of the present application.

[0027] Figure 5 This is a first connection diagram of the first insulating sheet, heating element and conductor provided in an embodiment of the present application.

[0028] Figure 6 This is a schematic diagram of the first connection between the first insulating sheet and the support tube provided in an embodiment of the present application.

[0029] Figure 7 This is a second connection diagram of the first insulating sheet, heating element and conductor provided in an embodiment of the present application.

[0030] Figure 8 This is a schematic diagram of the second connection between the first insulating sheet and the support tube provided in an embodiment of the present application.

[0031] Figure 9 This is a third connection diagram of the first insulating sheet, heating element and conductor provided in an embodiment of the present application.

[0032] Figure 10 This is a schematic diagram of the third connection between the first insulating sheet and the support tube provided in an embodiment of the present application.

[0033] Figure 11 This is a schematic diagram of the connection between the second insulating sheet, the first insulating sheet and the support tube provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0035] The embodiments of the present application provide a heating structure and an electronic atomizer to solve the problems of the existing electronic atomizer in which the conductor needs to be aligned when connected to one end of each metal heating wire, and the large number of metal heating wires leads to long manufacturing time and low efficiency. The following will be explained with reference to the accompanying drawings.

[0036] The heating structure provided in the embodiment of the present application is applied to an electronic atomizer. Figures 1 to 11 The heating structure includes a first insulating sheet 1 and a second insulating sheet 2. The first insulating sheet 1 is wound into a cylindrical shape and enclosed to form a receiving space, and a heating element is provided on the side of the first insulating sheet 1 facing away from the receiving space; the second insulating sheet 2 is arranged around the outer periphery of the first insulating sheet 1, and a pair of conductors 21 are correspondingly provided on the side of the second insulating sheet 2 facing the first insulating sheet 1; wherein, the heating element includes a plurality of first connecting ends 111 and a plurality of second connecting ends 112, and the second insulating sheet 2 is correspondingly fitted with the first insulating sheet 1 so that one conductor 21 is correspondingly connected to the plurality of first connecting ends 111, and another conductor 21 is correspondingly connected to the plurality of second connecting ends 112.

[0037] The heating structure provided in the embodiment of the present application is configured by arranging a heating element on a first insulating sheet 1 and a pair of conductors 21 on a second insulating sheet 2, and the heating element and the pair of conductors 21 are arranged in correspondence with each other. Therefore, the corresponding connection between the heating element and the pair of conductors 21 can be achieved by correspondingly fitting the first insulating sheet 1 and the second insulating sheet 2. There is no need to connect the pair of conductors 21 to the multiple first connection ends 111 and the multiple second connection ends 112 of the heating element one by one, which greatly saves the connection time between the heating element and the pair of conductors 21 and improves manufacturing efficiency.

[0038] Optionally, both the first insulating sheet 1 and the second insulating sheet 2 may be made of PI film. Furthermore, the PI film may be coated with PI glue. Since PI film generally refers to polyimide (PI) film, which is a high-performance thermoplastic film material, and polyimide is a material that is resistant to high temperatures, chemical corrosion, has high mechanical strength, and excellent electrical insulation properties, the use of PI film for the first insulating sheet 1 and the second insulating sheet 2 can provide the heating element with better electrical insulation and stability.

[0039] Optionally, the plurality of first connection ends 111 are spaced apart along the first direction, the plurality of second connection ends 112 are spaced apart along the second direction, one conductor 21 extends along the first direction, and the other conductor 21 extends along the second direction.

[0040] By distributing multiple first connection ends 111 along the first direction and multiple second connection ends 112 along the second direction, the conductor 21 can extend in a straight line, making the structure of the conductor 21 simpler and easier to align and connect with multiple first connection ends 111 or multiple second connection ends 112.

[0041] Furthermore, a plurality of first fool-proofing marks can be set on the first insulating sheet 1, and the setting positions of the plurality of first connection ends 111 and the plurality of second connection ends 112 of the heating element can be indicated by the plurality of first fool-proofing marks. A plurality of second fool-proofing marks can be correspondingly set on the second insulating sheet 2, and the setting positions of the conductor 21 can be indicated by the plurality of second fool-proofing marks, thereby simplifying the setting steps of the heating element and the conductor 21 and further improving the connection accuracy of the heating element and the conductor 21 when the first insulating sheet 1 and the second insulating sheet 2 are bonded.

[0042] The specific setting form of the first anti-fool mark and the second anti-fool mark is not further limited here. In some examples, the first anti-fool mark and the second anti-fool mark can be arrows or triangles and other marks pasted or printed on the first insulating sheet 1 and the second insulating sheet 2.

[0043] Optionally, the heating element and the first insulating sheet 1 can be crimped, and the first insulating sheet 1 and the second insulating sheet 2 can also be crimped.

[0044] Optionally, the first direction and the second direction are the same. That is, the pair of conductors 21 are parallel to each other, and the heating elements are more evenly arranged on the first insulating sheet 1, resulting in a better and more uniform heating effect. Furthermore, the first direction and the second direction can both be parallel to the axial direction of the cylindrical first insulating sheet 1. In this case, each conductor 21 also extends along the axial direction of the cylindrical first insulating sheet 1, making it easier for the conductors 21 to be placed outside the first insulating sheet 1 and connected to a power source.

[0045] As an alternative embodiment, the first direction and the second direction may also be different. In this case, the pair of conductors 21 are arranged at corresponding intervals and the extension lines of the pair of conductors 21 have an intersection.

[0046] It is understandable that there is a certain distance between each first connection end 111 and the corresponding second connection end 112 to avoid short circuit.

[0047] Optionally, see Figures 1 to 6 , Figure 1 This is a schematic diagram of the first structure of the first insulating sheet and the heating element provided in an embodiment of the present application. Figure 2This is an exploded view of the first insulating sheet and the heating element provided in the embodiment of the present application. Figure 3 This is a schematic diagram of the first structure of the second insulating sheet and the conductor provided in an embodiment of the present application. Figure 4 This is an exploded view of the second insulating sheet and the conductor provided in an embodiment of the present application. Figure 5 This is a first connection diagram of the first insulating sheet, the heating element and the conductor provided in an embodiment of the present application. Figure 6 This is a schematic diagram of the first connection between the first insulating sheet and the support tube provided in an embodiment of the present application. The heating element includes multiple bundles of heating units 11, which are spaced apart along the axial direction of the first insulating sheet 1. Each bundle of heating units 11 extends circumferentially along the first insulating sheet 1 and includes a first connecting end 111 and a second connecting end 112. In other words, the multiple bundles of heating units 11 are parallel to each other, resulting in more uniform heating of the heating element in the axial direction of the cylindrical first insulating sheet 1.

[0048] Optionally, the first insulating sheet 1 is provided with multiple insulating heat-conducting regions on the side facing the second insulating sheet 2, with one insulating heat-conducting region sandwiched between each of two adjacent bundles of heating units 11. The insulating heat-conducting regions fill the non-heat-generating gaps between adjacent heating units 11, achieving both insulation separation and utilizing the heat from the heating units 11 to even out the space between them, further enhancing the heating efficiency of the heating element. The insulating heat-conducting regions can be applied to the first insulating sheet 1.

[0049] The insulating heat-conducting area may be made of silicone resin, polyimide, graphene, aluminum oxide (Al2O3), boron nitride (BN), polytetrafluoroethylene (PTFE), or polyphenylene sulfide (PPS).

[0050] Optionally, a thermal insulation layer may be provided on the second insulating sheet 2 to achieve a better shrinkage effect. The specific location of the thermal insulation layer is not further limited here, and it may be provided on the side of the second insulating sheet 2 facing the first insulating sheet 1, or on the side of the second insulating sheet 2 facing away from the first insulating sheet 1.

[0051] Among them, the insulation layer can be made of rock wool, glass wool, mineral wool, rock wool board, aluminum silicate or rubber plastic.

[0052] Optionally, see Figures 9 and 10 , Figure 9 This is a third connection diagram of the first insulating sheet, the heating element, and the conductor provided in an embodiment of the present application. Figure 10This is a third schematic diagram of the connection between the first insulating sheet and the support tube provided in an embodiment of the present application. The heating element includes multiple bundles of heating units 11, which are interlaced and wound in a mesh pattern. The meshed multiple heating units 11 include multiple first connection ends 111 and multiple second connection ends 112 arranged oppositely along the circumference of the first insulating sheet 1. The meshed heating element further increases the coverage of the heating element on the first insulating sheet 1, thereby improving the heating effect of the first insulating sheet 1 with the same area.

[0053] Optionally, see Figures 7 and 8 , Figure 7 This is a second connection diagram of the first insulating sheet, the heating element and the conductor provided in an embodiment of the present application. Figure 8 This is a schematic diagram of the second connection between the first insulating sheet and the support tube provided in an embodiment of the present application. The heating element includes multiple bundles of heating units 11. Each bundle of heating units 11 is rectangular and has an opening. Each bundle of heating units 11 includes a first connection end 111 and a second connection end 112 that are opposite to each other through the opening. The multiple bundles of heating units 11 are spaced apart in sequence, and the multiple openings are spaced apart along the same direction. That is, the heating element is a plurality of rectangular frames that are spaced apart one by one, and the rectangular frames include a first connection end 111 and a second connection end 112 that are oppositely arranged, and the first connection end 111 and the second connection end 112 are clamped by brackets to form an opening. The gaps between two adjacent heating units 11 can be the same.

[0054] Of course, the heating unit 11 can also be set in other forms, such as the extension direction of each bundle of heating units 11 is at an angle of 45° with the axial and circumferential directions of the cylindrical first insulating sheet 1, that is, it is set obliquely on the first insulating sheet 1. No further examples are given here.

[0055] The number of the heating units 11 is not further limited here and can be further limited according to the specific heating capacity requirement. The length of each bundle of heating units 11 can be between 15 mm and 30 mm.

[0056] Optionally, a connection reinforcement portion may be provided on each first connection end 111 and each second connection end 112 to strengthen the connection strength between the plurality of first connection ends 111 and the plurality of second connection ends 112 and the pair of conductors 21, thereby improving the stability of the connection. The form of the connection reinforcement portion is not further limited herein; for example, it may be solder.

[0057] Optionally, the heating unit 11 can be made of carbon fiber material. The carbon fiber can be selected from filamentary continuous fibers or fiber bundles. The fiber bundle specifications can be selected including but not limited to 1K, 2K, 3K, 6K, 12K, 24K, 48K, etc. Carbon fiber materials have many advantages, such as high electrothermal conversion rate. The electrothermal conversion rate of carbon fiber bundles can reach over 95%, which is much higher than that of traditional metal heating elements. This means that more electrical energy can be converted into thermal energy, improving energy utilization efficiency; far-infrared radiation. During the heating process, carbon fiber emits far-infrared radiation. This radiation can penetrate the medium and be directly absorbed by the human body, thus having a good heating effect; rapid heating. The carbon fiber bundle heats up quickly, usually reaching a high temperature within a few seconds; uniform heating. Due to the good thermal conductivity of the carbon fiber bundle, the heat is uniform and will not cause local overheating like some metal heating elements; corrosion resistance. Carbon fiber has good corrosion resistance and is not easily affected by moisture and chemicals, so it is suitable for a variety of environments. Lightweight and high strength. The density of carbon fiber is much lower than that of metal, and it has high tensile strength, making the carbon fiber bundle both light and strong as a heating element. When carbon fiber is used as a heating material in working condition, the main way of heating is thermal radiation. 90% of the wavelengths generated by carbon fiber are in the infrared region of 2.5 to 13 μm thermal radiation wavelength. These infrared radiations can directly heat objects and reduce the loss of heat energy. At the same time, the carbon fiber electric heater is composed of a stable large molecular weight long chain carbon structure. There is no diffuse local breakdown problem in the electrothermal conversion process, which makes the electric heating power of the carbon fiber electric heater stable during use and will not attenuate.

[0058] Therefore, the heating unit 11 is made of carbon fiber material to improve the electrothermal conversion efficiency. Compared with the electrothermal conversion efficiency of traditional metal resistance wire, which is usually only 30% to 40%, the electrothermal conversion efficiency of carbon fiber bundles can reach 99%.

[0059] Optionally, the conductor 21 may be made entirely of pure metal or alloy material such as silver, copper, aluminum, nickel, etc.

[0060] As an alternative embodiment, the conductor 21 may also include a substrate and a conductive layer. The conductive layer is coated on the periphery of the substrate to achieve the conductive function. The conductive layer can be made of pure metal or alloy materials such as silver, copper, aluminum, nickel, etc., and the substrate can be made of a material with higher hardness.

[0061] Optionally, the heating structure provided in the embodiment of the present application further includes a support tube 3 , the first insulating sheet 1 is sleeved on the support tube 3 , and the hardness of the support tube 3 is higher than that of the first insulating sheet 1 .

[0062] By providing the support tube 3 , a mounting structure is provided for the winding of the first insulating sheet 1 , so that the first insulating sheet 1 can be wound and formed according to a target shape, thereby improving the manufacturing accuracy of the first insulating sheet 1 .

[0063] Optionally, the support tube 3 may be made of stainless steel such as SUS304, SUS3316, etc., and the wall thickness of the support tube 3 may be within the range of 0.1 mm.

[0064] Optionally, a first positioning mark is provided on the first insulating sheet 1 and a second positioning mark is correspondingly provided on the second insulating sheet 2. When the first insulating sheet 1 and the second insulating sheet 2 are affixed, the first positioning mark and the second positioning mark are correspondingly affixed.

[0065] By setting the first positioning mark and the second positioning mark, the installation steps of the first insulating sheet 1 and the second insulating sheet 2 are simplified, that is, after aligning the first positioning mark and the second positioning mark, the first insulating sheet 1 and the second insulating sheet 2 can be directly attached. At this time, the multiple first connection ends 111 and the second connection ends 112 of the heating element can be connected to the pair of conductors 21 accordingly, avoiding the situation that after the first insulating sheet 1 and the second insulating sheet 2 are attached, the multiple first connection ends 111 and the second connection ends 112 of the heating element can be misaligned and not connected to the pair of conductors 21.

[0066] In some examples, the first positioning mark and the second positioning mark may both be positioning holes; in other examples, the first positioning mark may be a positioning hole, and the second positioning mark may be a corresponding positioning protrusion, and the positioning protrusion is plugged into the positioning hole.

[0067] During the manufacturing process of the heating structure provided by the present application, a sheet-like first insulating sheet 1 and a second insulating sheet 2 are taken. The heating element can be crimped to a preset position on the first insulating sheet 1, and the conductor 21 can be crimped to a preset position on the second insulating sheet 2. Then, the first insulating sheet 1 and the second insulating sheet 2 are aligned and crimped by using the first marking 12 and the second marking 22, so that the multiple first connecting ends 111 and the second connecting ends 112 of the heating element are respectively connected to one conductor 21 for conduction. Finally, the crimped first insulating sheet 1 and the second insulating sheet 2 are wound on the support tube 3 for shaping. Please refer to Figure 11 , Figure 11 A schematic diagram of the connection between the second insulating sheet, the first insulating sheet and the support tube provided in the embodiment of the present application is provided to complete the installation.

[0068] As an alternative embodiment, the heating element may also be provided on the second insulating sheet 2 , and the pair of conductors 21 may be provided on the first insulating sheet 1 , which will not be further described here.

[0069] The embodiment of the present application further provides an electronic atomizer, comprising a housing and the heating structure as described above. The heating structure is disposed in the housing.

[0070] The types of electronic vaporizers are not further limited here. For example, it can be a disposable vaporizer that is discarded after use, which is convenient but more expensive; or a rechargeable vaporizer that can be recharged and used repeatedly, which is less expensive but requires regular cleaning and replacement of the vaporizer core; or a mechanical vaporizer that generates heat through manual rotation and is generally considered a safer choice.

[0071] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0072] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features.

[0073] The above is a detailed introduction to the heating structure and electronic atomizer provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heating structure, applied to an electronic atomizer, characterized in that: The heating structure comprises: a first insulating sheet wound into a cylindrical shape and surrounding a receiving space, wherein a heating element is provided on a side of the first insulating sheet facing away from the receiving space; A second insulating sheet is arranged around the outer periphery of the first insulating sheet, and a pair of conductors are respectively provided on a side of the second insulating sheet facing the first insulating sheet; Wherein, the heating element includes multiple first connection ends and multiple second connection ends, and the second insulating sheet is correspondingly fitted with the first insulating sheet so that one conductor is correspondingly connected to multiple first connection ends, and another conductor is correspondingly connected to multiple second connection ends.

2. The heating structure according to claim 1, characterized in that: A plurality of the first connection ends are distributed at intervals along a first direction, a plurality of the second connection ends are distributed at intervals along a second direction, one of the conductors extends correspondingly along the first direction, and another of the conductors extends correspondingly along the second direction.

3. The heating structure according to claim 2, characterized in that: The first direction and the second direction are the same.

4. The heating structure according to claim 1, characterized in that: The heating body includes multiple bundles of heating units, which are arranged at intervals along the axial direction of the first insulating sheet, and each bundle of the heating units extends along the circumference of the first insulating sheet. Each bundle of the heating units includes a first connecting end and a second connecting end opposite to each other.

5. The heating structure according to claim 4, characterized in that: A plurality of insulating heat-conducting areas are provided on a side of the first insulating sheet facing the second insulating sheet, and one insulating heat-conducting area is sandwiched between two adjacent bundles of the heating units.

6. The heating structure according to claim 1, characterized in that: The heating element includes a plurality of bundles of heating units, which are staggered and wound in a mesh shape. The mesh-shaped plurality of bundles of heating units include a plurality of first connection ends and a plurality of second connection ends that are relatively arranged along the circumference of the first insulating sheet.

7. The heating structure according to claim 1, characterized in that: The heating body includes multiple bundles of heating units, each bundle of the heating units is rectangular and has an opening, each bundle of the heating units includes a first connecting end and a second connecting end opposite to each other through the opening, multiple bundles of the heating units are arranged in sequence at intervals, and multiple openings are distributed at intervals along the same direction.

8. The heating structure according to claim 1, characterized in that: It also includes a support tube, the first insulating sheet is sleeved on the support tube, and the hardness of the support tube is higher than that of the first insulating sheet.

9. The heating structure according to claim 1, characterized in that: The first insulating sheet is provided with a first positioning mark, and the second insulating sheet is correspondingly provided with a second positioning mark. When the first insulating sheet and the second insulating sheet are attached to each other, the first positioning mark and the second positioning mark are correspondingly attached to each other.

10. An electronic atomizer, characterized in that: include: case; The heating structure according to any one of claims 1 to 9 is arranged in the shell.

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