Heating element, method of manufacturing a heating element, atomizer and atomizing apparatus

Abstract

This application discloses a heating element and its manufacturing method, an atomizing device, and an atomizing equipment. The heating element includes a first surface, a second surface, and a side surface, with the side surface connecting the first and second surfaces. The heating element has a liquid guiding hole and a venting hole. The liquid guiding hole penetrates the first and second surfaces and is spaced apart from the side surface, while the venting hole penetrates the first surface, the second surface, and the side surface. Thus, the venting hole can achieve pressure balance between the inside and outside of the liquid storage chamber of the atomizing device, reducing the processing difficulty of the venting structure of the atomizing device and ensuring high processing precision, thus guaranteeing consistency in mass production. Furthermore, the venting hole can be manufactured together with the liquid guiding hole, resulting in lower manufacturing costs for the heating element. Moreover, since the venting hole penetrates the side surface of the heating element, i.e., the venting hole is located at the edge of the heating element, the temperature at the edge of the heating element is lower, resulting in smaller bubbles during venting and reducing the likelihood of large bubbles obstructing the liquid supply to the heating element.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and more specifically, to a heating element and its manufacturing method, an atomizing device, and an atomizing equipment. Background Technology

[0002] Currently, electronic atomizing devices are increasingly widely used. The atomization zone of an atomizing device typically heats the atomizing liquid, causing it to atomize and form an aerosol. In related technologies, the atomizing device includes a liquid reservoir and a heating element. The atomizing liquid in the reservoir flows to the heating element and is atomized to form an aerosol. As the amount of atomizing liquid in the reservoir decreases, the air pressure inside the reservoir decreases, and the resistance of the aerosol-forming matrix passing through the heating element increases, easily leading to insufficient liquid supply and dry burning. To solve this problem, a ventilation structure connecting the external gas and the interior of the reservoir is usually installed on the reservoir. However, these ventilation structures are complex and difficult to manufacture. Summary of the Invention

[0003] This application provides a heating element and its manufacturing method, an atomizing device, and an atomizing equipment.

[0004] A heating element for an atomizing device includes a first surface, a second surface, and a side surface, the side surface connecting the first surface and the second surface, the heating element having a liquid guiding hole and a venting hole, the liquid guiding hole penetrating the first surface and the second surface and being spaced apart from the side surface, the venting hole penetrating the first surface, the second surface, and the side surface.

[0005] The aforementioned heating element is equipped with a vent, which helps to balance the internal and external air pressure within the liquid storage chamber of the atomizing device. This reduces the manufacturing difficulty of the venting structure and ensures high precision, guaranteeing consistency in mass production. Furthermore, the vent can be manufactured along with the liquid guiding holes, resulting in lower manufacturing costs for the heating element. Moreover, the vent extends through the side of the heating element, meaning it is located at the edge. Since the edge of the heating element has a lower temperature, smaller bubbles are generated during venting, reducing the likelihood of large bubbles obstructing the liquid supply to the heating element.

[0006] In some embodiments, the vent is located at a corner of the heating element. This corner is farther from the liquid guiding hole, minimizing the impact of the vent on the liquid guiding hole, facilitating liquid flow through the liquid guiding hole, and allowing the vent to easily exchange liquid.

[0007] In some embodiments, the heating element has ventilation holes at all corners. This allows for ventilation at multiple locations, which helps balance the internal and external air pressure of the liquid storage chamber and improves the smooth flow of liquid through the guide holes.

[0008] In some embodiments, the side surface includes two long sides and two short sides, the short sides connecting to the long sides, and the long sides and / or the short sides are provided with the ventilation holes. This makes the ventilation holes easy to manufacture, reducing the manufacturing cost of the heating element.

[0009] In some embodiments, the ventilation holes are provided on both of the long sides. Thus, the ventilation holes on the two long sides of the heating element allow for ventilation at multiple locations, which is beneficial for balancing the internal and external air pressure of the liquid storage chamber and improves the smooth flow of liquid through the liquid guide holes.

[0010] In some embodiments, the ventilation holes on the two long sides are symmetrically arranged along the width of the heating element. This symmetrical arrangement of the ventilation holes facilitates consistent ventilation throughout the liquid storage chamber, improving the pressure balance between the inside and outside of the chamber.

[0011] In some embodiments, all the ventilation holes on the two long sides are arranged alternately along the length of the heating element. This allows the heating element to provide more space for ventilation holes, ensuring that ventilation holes on the same long side do not interfere with each other.

[0012] In some embodiments, the number of ventilation holes on at least one of the long side surfaces is multiple, and the multiple ventilation holes are arranged at intervals. In this way, multiple ventilation holes can improve the ventilation effect of the heating element and help improve the liquid guiding capacity of the liquid guiding holes.

[0013] In some embodiments, the ventilation holes are provided on both of the short sides. This allows the heating element to ventilate from the short sides.

[0014] In some embodiments, the diameter of the vent is larger than the diameter of the liquid guiding hole. This larger vent diameter improves ventilation efficiency.

[0015] In some embodiments, the opening profile of the vent on the first surface is arc-shaped. This makes the vent easier to manufacture and reduces the manufacturing cost of the heating element.

[0016] In some embodiments, the opening profile is semi-circular. This makes the ventilation hole easier to manufacture and ensures better consistency during mass production of the heating element.

[0017] In some embodiments, the opening profile of the vent on the first surface is a polygonal shape. This allows the shape of the vent to be adapted to different processing methods, making the heating element easier to manufacture.

[0018] In some embodiments, the aperture of the ventilation hole ranges from 200 μm to 500 μm. Thus, when the aperture of the ventilation hole is within this range, it can both improve ventilation efficiency and prevent liquid leakage.

[0019] In some embodiments, the diameter of the liquid guiding hole ranges from 10 μm to 100 μm. This range allows for smooth liquid guiding, improves the atomization uniformity of the heating element, and prevents leakage when the heating element is not in operation.

[0020] In some embodiments, the heating element includes a substrate and a heating film disposed on the substrate, with the liquid guiding hole and the venting hole penetrating both the substrate and the heating film. Thus, the heating film can heat the atomized liquid, achieving the effect of forming an aerosol.

[0021] An atomizing device comprising:

[0022] The outer casing, wherein the outer casing is provided with a liquid storage chamber; and

[0023] In any of the above embodiments, the heating element has a ventilation hole that communicates with the liquid storage chamber.

[0024] An atomizing device comprising:

[0025] Battery components; and

[0026] In the atomizing device described above, the battery assembly is electrically connected to the heating element.

[0027] A method for manufacturing a heating element, comprising:

[0028] Provide a single plate;

[0029] Multiple repeating heating units are formed on the plate, each heating unit includes multiple liquid guiding holes, and the edge of the heating unit is provided with through holes, both the through holes and the liquid guiding holes penetrating the plate.

[0030] The plate is cut along a predetermined path so that each heating unit forms a heating element, the predetermined path passing through the through hole, and the side of the heating element has a ventilation hole formed by cutting through the through hole.

[0031] In the above manufacturing method, during the manufacturing process of the heating element, the ventilation hole of the heating element is formed by cutting through a through hole, which can improve the efficiency of mass production of heating elements.

[0032] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0034] Figure 1 This is a perspective view of the atomizing device according to an embodiment of this application;

[0035] Figure 2 This is a perspective view of the atomizing device according to an embodiment of this application;

[0036] Figure 3 yes Figure 2 A schematic diagram of the cross-section of the atomizing device along the III-III direction;

[0037] Figure 4 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0038] Figure 5 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0039] Figure 6 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0040] Figure 7 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0041] Figure 8 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0042] Figure 9 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0043] Figure 10 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0044] Figure 11 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0045] Figure 12 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0046] Figure 13 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0047] Figure 14 This is a three-dimensional schematic diagram of a heating element according to some embodiments of this application;

[0048] Figure 15This is a schematic diagram illustrating the manufacturing process of the heating element according to some embodiments of this application;

[0049] Figure 16 This is a schematic flowchart illustrating the manufacturing method of a heating element according to some embodiments of this application.

[0050] Key marker descriptions:

[0051] 1000-Atomizing device, 200-Battery assembly, 100-Atomizing device, 10-Shell, 11-Liquid storage chamber, 111-Side wall, 20-Heating element, 21-First surface, 22-Second surface, 23-Side side, 231-Long side, 232-Short side, 24-Liquid guide hole, 25-Ventilation hole, 26-Substrate, 27-Heating film, 300-Plate, 310-Heating unit, 320-Through hole, 330-Predetermined path. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0053] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples and settings are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0055] Please see Figures 1-2This application discloses an atomizing device 1000, which is a device that forms an aerosol from an aerosol-generating matrix by heating or other methods. The aerosol-generating matrix used in this application embodiment can be a liquid, solid, or solid-liquid combination that forms an aerosol. Furthermore, the aerosol-generating matrix can also be a medical atomizing reagent or other types of matrix. This application embodiment does not limit the specific type of aerosol-generating matrix. Users can inhale the generated aerosol through mouth inhalation or nasal inhalation.

[0056] Please see Figures 1-2 The atomizing device 1000 includes a battery assembly 200 and an atomizing device 100. The atomizing device 100 is connected to the battery assembly 200. The battery assembly 200 can provide electrical power to the atomizing device 100.

[0057] Please see Figure 2 and Figure 3 The atomizing device 100 of this application includes a housing 10 and a heating element 20. The housing 10 is provided with a liquid storage chamber 11, and one surface of the heating element 20 faces the liquid storage chamber 11.

[0058] Specifically, the outer casing 10 is the external part of the atomizing device 100, forming the external surface of the atomizing device 100. The outer casing 10 can be made of plastic to facilitate the formation of a suitable structure and shape. In this embodiment, the outer casing 10 is generally strip-shaped, or in other words, the ratio of the length to the width of the outer casing 10 can be greater than or equal to 1.5. The strip-shaped outer casing 10 facilitates user operation of the atomizing device 100.

[0059] In addition, the outer casing 10 is also a basic component of the atomizing device 100, and the outer casing 10 can support other parts of the atomizing device 100. The outer casing 10 has a liquid storage chamber 11, in which the atomizing liquid is contained. The liquid storage chamber 11 stores, for example, 5g of atomizing liquid, and this application does not limit the specific capacity of the liquid storage chamber 11.

[0060] The sidewall 111 of the liquid storage chamber 11 extends along the depth direction of the liquid storage chamber 11. The sidewall 111 of the liquid storage chamber 11 may include multiple surfaces connected end to end. During the consumption of the atomizing liquid in the liquid storage chamber 11, the liquid level of the atomizing liquid decreases along the sidewall 111.

[0061] The heating element 20 can be installed inside the housing 10 by means of a bracket or other components. The heating element 20 can heat the atomized liquid in the liquid storage chamber 11 to form an aerosol.

[0062] Please see Figure 4 and Figure 5The heating element 20 of this application includes a first surface 21, a second surface 22 and a side surface 23. The side surface 23 connects the first surface 21 and the second surface 22. The heating element 20 is provided with a liquid guiding hole 24 and a ventilation hole 25. The liquid guiding hole 24 penetrates the first surface 21 and the second surface 22 and is spaced apart from the side surface 23. The ventilation hole 25 penetrates the first surface 21, the second surface 22 and the side surface 23.

[0063] The heating element 20 of this embodiment is provided with a vent 25. The vent 25 can achieve pressure balance between the inside and outside of the liquid storage chamber 11 of the atomizing device 100, reducing the processing difficulty of the venting structure of the atomizing device 100 and ensuring high processing precision, thus guaranteeing the consistency of mass production of the heating element 20. In addition, the vent 25 can be manufactured together with the liquid guiding hole 24, resulting in a lower manufacturing cost of the heating element 20. Furthermore, the vent 25 penetrates the side 23 of the heating element 20, that is, the vent 25 is located at the edge of the heating element 20. Since the temperature at the edge of the heating element 20 is lower, the bubbles are smaller during venting, and large bubbles are less likely to obstruct the liquid supply of the heating element 20.

[0064] Specifically, the heating element 20 is sheet-shaped. It can be understood that "sheet-shaped" is relative to a block shape; the length-to-thickness ratio of the sheet is larger than that of a block. The heating element 20 is electrically connected to the battery assembly 200.

[0065] The first surface 21 and the second surface 22 are two surfaces along the thickness direction of the heating element 20, and both the first surface 21 and the second surface 22 can be planar. The side surface 23 can be planar or curved. There are multiple liquid guiding holes 24, which can be arranged in an array. The liquid guiding holes 24 can be regular-shaped holes such as circular holes, square holes, or triangular holes, or they can be irregular-shaped holes. The specific shape of the liquid guiding holes 24 is not limited here. The atomizing liquid can flow from the first surface 21 to the second surface 22 under the action of gravity, air pressure, etc.

[0066] The vent 25 is connected to the liquid storage chamber 11. The vent 25 enables pressure balance between the inside and outside of the liquid storage chamber 11. It should be noted that the vent 25 provides resistance to the atomized liquid. Due to frictional resistance and surface tension, the atomized liquid will not flow from the first surface 21 to the second surface 22 through the vent 25; that is, the vent 25 acts as a liquid-locking mechanism. When the pressure inside the liquid storage chamber 11 is low, external gas can enter the liquid storage chamber 11 through the vent 25, thereby achieving pressure balance between the inside and outside of the liquid storage chamber 11.

[0067] Please see Figures 4-6In some embodiments, the vent 25 is located at a corner of the heating element 20. This corner is far from the liquid guiding hole 24, minimizing the impact of the vent 25 on the liquid guiding hole 24, which facilitates liquid guiding through the liquid guiding hole 24 and allows the vent 25 to exchange liquid smoothly.

[0068] Specifically, the heating element 20 can be square-shaped, with four corners, and at least one corner is provided with a ventilation hole 25. It can be understood that when the ventilation hole 25 is provided at a corner of the heating element 20, the ventilation hole 25 penetrates through the two interconnected sides 23 of the heating element 20.

[0069] like Figure 6 As shown, in some embodiments, ventilation holes 25 are provided at all corners of the heating element 20. In this way, the heating element 20 can achieve ventilation at multiple locations, which is conducive to the balance of air pressure inside and outside the liquid storage chamber 11 and improves the effect of smooth liquid guiding through the liquid guiding hole 24.

[0070] like Figure 4 and Figure 5 As shown, ventilation holes 25 are provided at some corners of the heating element 20.

[0071] Please see Figure 7 and Figure 8 In some embodiments, side 23 includes two long side surfaces 231 and two short side surfaces 232, with the short side surfaces 232 connected to the long side surfaces 231. The long side surfaces 231 and / or the short side surfaces 232 are provided with ventilation holes 25. Alternatively, the long side surfaces 231 may be provided with ventilation holes 25, such as... Figure 7 As shown; the short side 232 may be provided with a ventilation hole 25; the long side 231 and the short side 232 may be provided with ventilation holes 25 simultaneously, such as Figure 8 As shown. In this way, the ventilation hole 25 is easy to process and manufacture, which can reduce the manufacturing cost of the heating element 20.

[0072] Specifically, the longer side 231 is the side 23 of the heating element 20 with a longer length than the shorter side 232. The longer side 231 can form the length and thickness of the heating element 20. The shorter side 232 can form the width and thickness of the heating element 20. The longer side 231 and the shorter side 232 can be perpendicular to each other.

[0073] Please see Figure 8 and Figure 9 In some embodiments, both long sides 231 are provided with ventilation holes 25. In this way, the ventilation holes 25 on the two long sides 231 of the heating element 20 allow the heating element 20 to be ventilated at multiple locations, which is beneficial to the pressure balance inside and outside the liquid storage chamber 11 and improves the effect of smooth liquid guiding through the liquid guiding hole 24.

[0074] Please see Figure 9 and Figure 10 In some embodiments, the ventilation holes 25 on the two long sides 231 are symmetrically arranged in the width direction of the heating element 20. In this way, the symmetrical arrangement of the ventilation holes 25 is conducive to the uniformity of ventilation in all positions of the liquid storage chamber 11 and improves the pressure balance inside and outside the liquid storage chamber 11.

[0075] Please see Figure 11 In some embodiments, all the ventilation holes 25 on the two long sides 231 are arranged alternately along the length of the heating element 20. In this way, the heating element 20 can provide more space for the ventilation holes 25, so that the ventilation holes 25 located on the same long side 231 will not interfere with each other.

[0076] Please see Figure 9 and Figure 10 In some embodiments, at least one long side 231 has multiple ventilation holes 25, which are arranged at intervals. For example, one long side 231 may have multiple ventilation holes 25. Alternatively, both long side 231 may have multiple ventilation holes 25. The number of ventilation holes 25 on the long side 231 can be two, three, four, or similar. Thus, multiple ventilation holes 25 can improve the ventilation effect of the heating element 20, which is beneficial for improving the liquid guiding capacity of the liquid guiding hole 24.

[0077] like Figure 8 As shown, in some embodiments, both short sides 232 are provided with ventilation holes 25. In this way, the heating element 20 can achieve ventilation through the short sides 232. Specifically, the ventilation holes 25 on the two short sides 232 can be arranged symmetrically along the length of the heating element 20.

[0078] In some embodiments, the diameter of the vent 25 is larger than the diameter of the liquid guiding hole 24. This larger diameter of the vent 25 improves ventilation efficiency.

[0079] It should be noted that when both the vent hole 25 and the liquid guiding hole 24 are circular holes, the diameter of the vent hole 25 and the liquid guiding hole 24 is the diameter of the circular hole. When both the vent hole 25 and the liquid guiding hole 24 are non-circular holes, the diameter of the vent hole 25 and the liquid guiding hole 24 is the diameter of the external circular hole.

[0080] In some embodiments, the opening profile of the vent 25 on the first surface 21 is arc-shaped. Alternatively, the cross-sectional profile of the vent 25 in the direction perpendicular to the thickness of the heating element 20 is arc-shaped. The cross-sectional profile of the vent 25 can be a superior arc, a inferior arc, a semicircle, or other shapes. This makes the vent 25 easier to manufacture and reduces the manufacturing cost of the heating element 20.

[0081] In some embodiments, the opening profile of the vent 25 on the first surface 21 is semi-circular. This makes the vent 25 easier to manufacture and ensures better consistency during mass production of the heating element 20.

[0082] Please see Figures 12-14 In some embodiments, the opening profile of the vent 25 on the first surface 21 is a zigzag shape. Thus, the shape of the vent 25 can be adapted to different processing methods, making the heating element easier to manufacture.

[0083] In some embodiments, the pore size of the vent 25 ranges from 200 μm to 500 μm. For example, the pore size of the vent 25 can be 200 μm, 300 μm, 400 μm, 500 μm, etc. Thus, when the pore size of the vent 25 is within this range, the vent 25 can improve ventilation efficiency and prevent liquid leakage. Specifically, if the pore size of the vent 25 is greater than 500 μm, there may be a risk of leakage; if the pore size of the vent 25 is less than 200 μm, it cannot achieve a good ventilation effect, thereby affecting the liquid dispensing rate and atomization efficiency.

[0084] The aperture of the vent 25 can be adjusted to match the atomizing fluid, which has a viscosity greater than 10000 cps at room temperature (25℃). In this embodiment, the viscosity is measured using GB / T 17473.5-1998, "Viscosity Measurement of Noble Metal Slurries for Thick Film Microelectronics Technology". Higher viscosity of the atomizing fluid indicates weaker fluidity and greater flow resistance; therefore, a larger aperture can be used.

[0085] In some embodiments, the pore size of the liquid guiding hole 24 ranges from 10 μm to 100 μm. For example, the pore size of the liquid guiding hole 24 can be 10 μm, 20 μm, 30 μm, 40 μm, 60 μm, 88 μm, or 100 μm (micrometers). When the pore size of the liquid guiding hole 24 is less than 10 μm, the liquid guiding hole 24 has a large adsorption force on the atomizing liquid, which is not conducive to the flow of the atomizing liquid through the liquid guiding hole 24. At the same time, the liquid guiding hole 24 with a pore size of less than 10 μm is also more difficult to manufacture, resulting in an increase in the manufacturing cost of the heating element 20. When the pore size of the liquid guiding hole 24 is greater than 100 μm, the liquid guiding hole 24 has poor flow stabilization and liquid retention capabilities, which is not conducive to the atomization uniformity of the heating element 20 and can easily cause leakage when the atomizing device 100 is not in operation.

[0086] Thus, with the aperture of the liquid guiding hole 24 within the above range, the liquid guiding hole 24 can smoothly guide the liquid, which can improve the atomization uniformity of the heating element 20 and prevent the heating element 20 from leaking when it is not working.

[0087] Please refer to it again. Figure 7 In some embodiments, the heating element 20 includes a substrate 26 and a heating film 27 disposed on the substrate 26, with the liquid guiding hole 24 and the ventilation hole 25 penetrating both the substrate 26 and the heating film 27. Thus, the heating film 27 can heat the atomized liquid to achieve the effect of forming an aerosol. Specifically, the substrate 26 can serve as a carrier for the heating film 27, making the installation of the heating film 27 more stable. The substrate 26 can be made of materials such as glass or dense ceramic; this application does not further limit the specific material of the substrate 26.

[0088] The heating film 27 can be made of conductive and easily heated materials such as metals or alloys. For example, the material of the heating film 27 can be platinum, palladium, palladium-copper alloy, gold-silver-platinum alloy, gold-silver alloy, palladium-silver alloy, gold-platinum alloy, etc. The heating film 27 can be applied to the surface of the substrate 26 by printing, electroplating, lamination, sputtering, etc.

[0089] Please see Figure 15 and Figure 16 The manufacturing method of the heating element 20 according to the embodiments of this application includes:

[0090] S10, providing a 300-ton plate;

[0091] S20, a plurality of repeating heating units 310 are formed on the plate 300. Each heating unit 310 includes a plurality of liquid guiding holes 24. The edge of the heating unit 310 is provided with through holes 320. Both the through holes 320 and the liquid guiding holes 24 penetrate the plate 300.

[0092] S30, the plate 300 is cut along a predetermined path 330 so that each heating unit 310 forms a heating element 20. The predetermined path 330 passes through a through hole 320. The side 23 of the heating element 20 has a ventilation hole 25 formed by cutting through the through hole 320.

[0093] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A heating element for an atomizing device, characterized in that, The heating element includes a first surface, a second surface, and a side surface. The side surface connects the first surface and the second surface. The heating element is provided with a liquid guiding hole and a ventilation hole. The liquid guiding hole passes through the first surface and the second surface and is spaced apart from the side surface. The ventilation hole passes through the first surface, the second surface, and the side surface.

2. The heating element according to claim 1, characterized in that, The ventilation hole is located at the corner of the heating element.

3. The heating element according to claim 2, characterized in that, The heating element is provided with ventilation holes at all corners.

4. The heating element according to claim 1, characterized in that, The side includes two long sides and two short sides, the short sides are connected to the long sides, and the long sides and / or the short sides are provided with the ventilation holes.

5. The heating element according to claim 4, characterized in that, The ventilation holes are provided on both of the long sides.

6. The heating element according to claim 5, characterized in that, The ventilation holes on the two long sides are arranged symmetrically in the width direction of the heating element.

7. The heating element according to claim 5, characterized in that, All the ventilation holes on the two long sides are arranged alternately along the length of the heating element.

8. The heating element according to claim 5, characterized in that, The number of ventilation holes on at least one of the long sides is multiple, and the multiple ventilation holes are arranged at intervals.

9. The heating element according to claim 4, characterized in that, The ventilation holes are provided on both of the short sides.

10. The heating element according to claim 1, characterized in that, The diameter of the ventilation hole is larger than the diameter of the liquid guiding hole.

11. The heating element according to claim 1, characterized in that, The opening contour of the ventilation hole on the first surface is arc-shaped.

12. The heating element according to claim 11, characterized in that, The opening has a semi-circular shape.

13. The heating element according to claim 1, characterized in that, The opening profile of the ventilation hole on the first surface is a broken line shape.

14. The heating element according to claim 1, characterized in that, The pore size of the ventilation holes ranges from 200μm to 500μm.

15. The heating element according to claim 1, characterized in that, The diameter of the liquid guiding hole ranges from 10μm to 100μm.

16. The heating element according to claim 1, characterized in that, The heating element includes a substrate and a heating film disposed on the substrate, and the liquid guiding hole and the air exchange hole both penetrate the substrate and the heating film.

17. An atomizing device, characterized in that, include: The outer casing has a liquid storage chamber; and The heating element according to any one of claims 1-16, wherein the vent is connected to the liquid storage chamber.

18. An atomizing device, characterized in that, include: Battery components; and The atomizing device of claim 17, wherein the battery assembly is electrically connected to the heating element.

19. A method for manufacturing a heating element, characterized in that, include: Provide a single plate; Multiple repeating heating units are formed on the plate, each heating unit includes multiple liquid guiding holes, and the edge of the heating unit is provided with through holes, both the through holes and the liquid guiding holes penetrating the plate. The plate is cut along a predetermined path so that each heating unit forms a heating element, the predetermined path passing through the through hole, and the side of the heating element has a ventilation hole formed by cutting through the through hole.

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