Heating element, atomization device and atomization equipment

Abstract

The utility model discloses a heating element, an atomization device and atomization equipment. The heating element comprises a first surface, a second surface and a side face, the side face is connected with the first surface and the second surface, the heating element is provided with a liquid guide hole and a ventilation hole, the liquid guide hole penetrates through the first surface and the second surface and is spaced from the side face, and the ventilation hole penetrates through the first surface, the second surface and the side face. Therefore, the ventilation hole can realize the balance of internal and external air pressure of the liquid storage chamber of the atomization device, the processing difficulty of the ventilation structure of the atomization device is reduced, the processing precision is high, and the consistency of batch production is ensured. In addition, the ventilation hole can be manufactured along with the liquid guide hole, so that the manufacturing cost of the heating element is low. Furthermore, the ventilation holes penetrate through the side face of the heating element, namely, the ventilation holes are formed in the edge of the heating element, and due to the fact that the temperature of the edge of the heating element is low, bubbles are small during ventilation, and large bubbles are not prone to occurring to hinder liquid supply of the heating element.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, and more particularly, to a heating element, an atomization device, and an atomization equipment. BACKGROUND

[0002] Currently, electronic atomization devices are increasingly widely used. The atomization area of an atomization device generally heats atomization liquid by heating, so that the atomization liquid is atomized to form an aerosol. In the related art, an atomization device includes a liquid storage chamber and a heating element. The atomization liquid in the liquid storage chamber flows to the heating element and is atomized to form an aerosol. As the amount of the atomization liquid in the liquid storage chamber decreases, the air pressure in the liquid storage chamber decreases, and the resistance of an aerosol generating substrate passing through the heating element increases, which easily leads to insufficient liquid supply and causes dry burning. In order to solve this problem, a gas exchange structure is usually arranged on the liquid storage chamber to communicate the outside air with the inside of the liquid storage chamber. However, the gas exchange structure is complex in structure and difficult to process. CONTENT

[0003] The present application provides a heating element, an atomization device, and an atomization equipment.

[0004] A heating element for an atomization device, the heating element comprising a first surface, a second surface, and a side surface connecting the first surface and the second surface, the heating element being provided with a liquid guide hole and a gas exchange hole, the liquid guide hole penetrating through the first surface and the second surface and being arranged in a spaced manner with the side surface, and the gas exchange hole penetrating through the first surface, the second surface, and the side surface.

[0005] The heating element described above is provided with the gas exchange hole, which can balance the air pressure inside and outside the liquid storage chamber of the atomization device, reduce the processing difficulty of the gas exchange structure of the atomization device, and has high processing precision, thereby ensuring the consistency of batch production. In addition, the gas exchange hole can be manufactured together with the liquid guide hole, so that the manufacturing cost of the heating element is relatively low. Furthermore, the gas exchange hole penetrates through the side surface of the heating element, that is, the gas exchange hole is arranged at the edge of the heating element. Since the temperature of the edge of the heating element is relatively low, the air bubbles are small during gas exchange, and large air bubbles are not easy to appear to hinder the liquid supply of the heating element.

[0006] In some embodiments, the gas exchange hole is arranged at a corner of the heating element. In this way, the corner is located far away from the liquid guide hole, so that the influence of the gas exchange hole on the liquid guide hole is low, which is beneficial to the liquid guidance of the liquid guide hole and enables the gas exchange hole to smoothly exchange liquid.

[0007] In some embodiments, all the corners of the heating element are provided with the gas exchange hole. In this way, the heating element can exchange gas at multiple positions, which is beneficial to the balance of the air pressure inside and outside the liquid storage chamber and improves the effect of the liquid guidance of the liquid guide hole.

[0008] In some embodiments, the side surface comprises two long sides and two short sides, the short sides connecting the long sides, and the long sides and / or the short sides are provided with the ventilation holes. In this way, the ventilation holes are easy to manufacture, and the manufacturing cost of the heating element can be reduced.

[0009] In some embodiments, both of the long sides are provided with the ventilation holes. In this way, the ventilation holes on both long sides of the heating element enable the heating element to achieve ventilation in multiple positions, which is conducive to balancing the internal and external air pressure of the liquid storage chamber and improving the effect of smoothly guiding liquid through the liquid guiding hole.

[0010] In some embodiments, the ventilation holes on both long sides are symmetrically arranged in the width direction of the heating element. In this way, the symmetrically arranged ventilation holes are conducive to the consistency of ventilation at each position of the liquid storage chamber and improve the balance of the internal and external air pressure of the liquid storage chamber.

[0011] In some embodiments, all the ventilation holes on both long sides are alternately arranged along the length direction of the heating element. In this way, the heating element can provide more positionally arranged ventilation holes, so that the 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 long side is a plurality, and the plurality of ventilation holes are arranged at intervals. In this way, the plurality of ventilation holes can improve the ventilation effect of the heating element and improve the liquid guiding capacity of the liquid guiding hole.

[0013] In some embodiments, both of the short sides are provided with the ventilation holes. In this way, the heating element can achieve the function of ventilation from the short sides.

[0014] In some embodiments, the aperture of the ventilation hole is larger than the aperture of the liquid guiding hole. In this way, the larger aperture of the ventilation hole can improve the ventilation efficiency.

[0015] In some embodiments, the opening profile of the ventilation hole on the first surface is in the shape of a circular arc. In this way, the ventilation hole is easy to manufacture, and the manufacturing cost of the heating element can be reduced.

[0016] In some embodiments, the opening profile is in the shape of a semicircular arc. In this way, the ventilation hole is easy to manufacture, and the consistency is good when the heating element is mass-produced.

[0017] In some embodiments, the opening profile of the ventilation hole on the first surface is in the shape of a broken line. In this way, the shape of the ventilation hole can adapt to different processing methods, making the heating element easier to manufacture.

[0018] In some embodiments, the ventilation hole has a pore size ranging from 200 μm to 500 μm. In this way, when the ventilation hole has a pore size within the above range, the ventilation hole can improve the ventilation efficiency and prevent liquid leakage.

[0019] In some embodiments, the liquid guiding hole has a pore size ranging from 10 μm to 100 μm. In this way, when the liquid guiding hole has a pore size within the above range, the liquid guiding hole can smoothly guide liquid, improve the atomization uniformity of the heating element, and prevent the heating element from leaking liquid when not in operation.

[0020] In some embodiments, the heating element includes a substrate and a heating film disposed on the substrate, and the liquid guiding hole and the ventilation hole both penetrate the substrate and the heating film. In this way, the heating film can heat the atomized liquid to form an aerosol.

[0021] An atomization device includes:

[0022] a housing provided with a liquid storage chamber; and

[0023] The heating element of any of the above embodiments, wherein the ventilation hole is in communication with the liquid storage chamber.

[0024] An atomization apparatus includes:

[0025] a battery assembly; and

[0026] The atomization device described above, wherein the battery assembly is electrically connected to the heating element.

[0027] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0029] Figure 1 is a perspective view of an atomization apparatus of an embodiment of the present application;

[0030] Figure 2 is a perspective view of an atomization apparatus of an embodiment of the present application;

[0031] Figure 3 is a cross-sectional view of the atomization apparatus of Figure 2 along III-III;

[0032] Figure 4 is a perspective view of a heating element of some embodiments of the present application;

[0033] Figure 5 is a perspective view of a heating element according to some embodiments of the present application;

[0034] Figure 6 is a perspective view of a heating element according to some embodiments of the present application;

[0035] Figure 7 is a perspective view of a heating element according to some embodiments of the present application;

[0036] Figure 8 is a perspective view of a heating element according to some embodiments of the present application;

[0037] Figure 9 is a perspective view of a heating element according to some embodiments of the present application;

[0038] Figure 10 is a perspective view of a heating element according to some embodiments of the present application;

[0039] Figure 11 is a perspective view of a heating element according to some embodiments of the present application;

[0040] Figure 12 is a perspective view of a heating element according to some embodiments of the present application;

[0041] Figure 13 is a perspective view of a heating element according to some embodiments of the present application;

[0042] Figure 14 is a perspective view of a heating element according to some embodiments of the present application;

[0043] Figure 15 is a schematic view of a manufacturing process of a heating element according to some embodiments of the present application;

[0044] Figure 16 is a flowchart of a manufacturing method of a heating element according to some embodiments of the present application.

[0045] Main Mark Description:

[0046] 1000 - atomization device, 200 - battery assembly, 100 - atomization device, 10 - shell, 11 - liquid storage chamber, 111 - side wall, 20 - heating element, 21 - first surface, 22 - second surface, 23 - side surface, 231 - long side surface, 232 - short side surface, 24 - liquid guide hole, 25 - air exchange hole, 26 - base body, 27 - heating film, 300 - plate body, 310 - heating unit, 320 - through hole, 330 - predetermined path. DETAILED DESCRIPTION

[0047] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to limit the present application as defined by the appended claims and their equivalents.

[0048] In the present application, unless specifically defined otherwise, a first feature "on" or "under" a second feature can include that the first and second features are directly in contact, or that the first and second features are not directly in contact but are in contact through another feature between them. Also, a first feature "over", "above" and "on top of" a second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0049] The disclosure that follows provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and acts of the various examples are arranged into specific configurations and described as being performed by, or comprising, specific components and / or in specific arrangements. In reality, the elements and acts can be combined in a plurality of possible configurations and performed by many different structures, and in different orders of acts than those described below. It will be apparent, however, to those skilled in the art that the application can be practiced without resorting to the details in the following description.

[0050] Referring to Figures 1-2 , an aerosol generating device 1000 is disclosed in embodiments of the present application, which is a device that forms an aerosol by heating or the like an aerosol generating substrate. The aerosol generating substrate used in embodiments of the present application can be a liquid, a solid, or a combination of solid and liquid that forms an aerosol. In addition, the aerosol generating substrate can be a medical aerosol generating agent or other types of substrates. Embodiments of the present application do not limit the specific type of the aerosol generating substrate. A user can inhale the generated aerosol by mouth or nose or the like.

[0051] Referring to Figures 1-2 , the aerosol generating 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 supply power to the atomizing device 100.

[0052] Referring to Figure 2 and Figure 3The atomization device 100 of the embodiment of the present application comprises a shell 10 and a heating element 20, the shell 10 is provided with a liquid storage chamber 11, and one surface of the heating element 20 faces the liquid storage chamber 11.

[0053] Specifically, the shell 10 is an appearance part of the atomization device 100, and the shell 10 forms an appearance surface of the atomization device 100. The shell 10 can be made of plastic, so that the shell 10 is easy to form a proper structure and shape. In the embodiment of the present application, the shell 10 is in a strip shape as a whole, or the ratio of the length to the width of the shell 10 can be greater than or equal to 1.5. The strip-shaped shell 10 facilitates the user to use the atomization device 100.

[0054] In addition, the shell 10 is also a basic component of the atomization device 100, and the shell 10 can carry other parts of the atomization device 100. The shell 10 is formed with the liquid storage chamber 11, and the atomization liquid is contained in the liquid storage chamber 11. The atomization liquid stored in the liquid storage chamber 11 is, for example, 5g, and the present application does not limit the specific capacity of the liquid storage chamber 11.

[0055] The side wall 111 of the liquid storage chamber 11 extends along the depth direction of the liquid storage chamber 11. The side wall 111 of the liquid storage chamber 11 can include a plurality of surfaces connected end to end. During the consumption of the atomization liquid in the liquid storage chamber 11, the liquid level of the atomization liquid drops along the side wall 111.

[0056] The heating element 20 can be installed in the shell 10 through a support or the like, and the heating element 20 can heat the atomization liquid in the liquid storage chamber 11 to form an aerosol.

[0057] Please refer to Figure 4 and Figure 5 The heating element 20 of the embodiment of the present application comprises 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 guide hole 24 and an air exchange hole 25, the liquid guide hole 24 penetrates the first surface 21 and the second surface 22 and is spaced apart from the side surface 23, and the air exchange hole 25 penetrates the first surface 21, the second surface 22 and the side surface 23.

[0058] The heating element 20 of the embodiment of the present application is provided with the air exchange hole 25, which can realize the internal and external air pressure balance of the liquid storage chamber 11 of the atomization device 100, reduce the processing difficulty of the air exchange structure of the atomization device 100, and has high processing precision, thereby ensuring the consistency of batch production of the heating element 20. In addition, the air exchange hole 25 can be manufactured together with the liquid guide hole 24, so that the manufacturing cost of the heating element 20 is relatively low. Furthermore, the air exchange hole 25 penetrates the side surface 23 of the heating element 20, that is, the air exchange hole 25 is arranged at the edge of the heating element 20. Since the temperature of the edge of the heating element 20 is low, the air bubble is small during air exchange, and it is not easy to appear large air bubble to hinder the liquid supply of the heating element 20.

[0059] Specifically, the heating element 20 is in a sheet shape, which can be understood as a relative concept compared with a block shape, and the length to thickness ratio of the sheet shape is larger than that of the block shape. The heating element 20 is electrically connected with the battery assembly 200.

[0060] The first surface 21 and the second surface 22 are respectively two surfaces in the thickness direction of the heating element 20, and the first surface 21 and the second surface 22 can both be planes. The side surface 23 can be a plane or a curved surface. The number of the liquid guiding holes 24 is multiple, and the multiple liquid guiding holes 24 can be arranged in an array. The liquid guiding hole 24 can be a regular-shaped hole such as a circular hole, a square hole or a triangular hole, or can be an irregular-shaped hole, and the specific shape of the liquid guiding hole 24 is not limited herein. The atomized liquid can flow from the first surface 21 to the second surface 22 under the action of gravity, air pressure or the like.

[0061] The air exchange hole 25 is in communication with the liquid storage chamber 11. The air exchange hole 25 can balance the air pressure inside and outside the liquid storage chamber 11. It should be noted that the atomized liquid will not flow from the first surface 21 to the second surface 22 through the air exchange hole 25 under the action of the flow resistance of the atomized liquid along the air exchange hole 25, the surface tension of the atomized liquid itself and the like, that is, the air exchange hole 25 has a liquid locking effect on the atomized liquid. In the case that the air pressure inside the liquid storage chamber 11 is relatively low, external air can enter the liquid storage chamber 11 through the air exchange hole 25, thereby balancing the air pressure inside and outside the liquid storage chamber 11.

[0062] Please refer to Figures 4-6 In some embodiments, the air exchange hole 25 is arranged at a corner of the heating element 20. In this way, the corner is far away from the liquid guiding hole 24, so that the air exchange hole 25 has a lower influence on the liquid guiding hole 24, which is conducive to the liquid guiding of the liquid guiding hole 24 and enables the air exchange hole 25 to smoothly exchange liquid.

[0063] Specifically, the heating element 20 can be in a square sheet shape, and the heating element 20 has four corners, at least one of which is provided with an air exchange hole 25. It can be understood that when the air exchange hole 25 is arranged at the corner of the heating element 20, the air exchange hole 25 penetrates through two side surfaces 23 of the heating element 20 which are connected to each other.

[0064] As shown in Figure 6 In some embodiments, all the corners of the heating element 20 are provided with air exchange holes 25. In this way, the heating element 20 can achieve air exchange at multiple positions, which is conducive to balancing the air pressure inside and outside the liquid storage chamber 11 and improving the effect of smooth liquid guiding of the liquid guiding hole 24.

[0065] As shown in Figure 4 and Figure 5 Some of the corners of the heating element 20 are provided with air exchange holes 25.

[0066] Referring to Figure 7 and Figure 8 In some embodiments, the side surface 23 comprises two long side surfaces 231 and two short side surfaces 232, the short side surfaces 232 connecting the long side surfaces 231, the long side surfaces 231 and / or the short side surfaces 232 being provided with the air exchange holes 25. Alternatively, the long side surfaces 231 can be provided with the air exchange holes 25, as shown in Figure 7 ; the short side surfaces 232 can be provided with the air exchange holes 25; the long side surfaces 231 and the short side surfaces 232 can be provided with the air exchange holes 25 simultaneously, as shown in Figure 8 . In this way, the air exchange holes 25 are easy to manufacture, and the manufacturing cost of the heat generating element 20 can be reduced.

[0067] Specifically, the long side surface 231 is a side surface 23 of the heat generating element 20 with a longer length, and the length of the long side surface 231 is greater than the length of the short side surface 232. The long side surface 231 can form the length and the thickness of the heat generating element 20. The short side surface 232 can form the width and the thickness of the heat generating element 20. The long side surface 231 and the short side surface 232 can be perpendicular to each other.

[0068] Referring to Figure 8 and Figure 9 In some embodiments, both of the long side surfaces 231 are provided with the air exchange holes 25. In this way, the air exchange holes 25 of the two long side surfaces 231 of the heat generating element 20 enable the heat generating element 20 to achieve air exchange at multiple positions, which is conducive to balancing the internal and external air pressures of the liquid storage chamber 11 and improving the effect of smoothly guiding the liquid by the liquid guiding hole 24.

[0069] Referring to Figure 9 and Figure 10 In some embodiments, the air exchange holes 25 of the two long side surfaces 231 are symmetrically arranged in the width direction of the heat generating element 20. In this way, the symmetrically arranged air exchange holes 25 are conducive to the consistency of air exchange at each position of the liquid storage chamber 11 and improve the balancing of the internal and external air pressures of the liquid storage chamber 11.

[0070] Referring to Figure 11 In some embodiments, all of the air exchange holes 25 of the two long side surfaces 231 are alternately arranged in the length direction of the heat generating element 20. In this way, the heat generating element 20 can provide more positions for arranging the air exchange holes 25, so that the air exchange holes 25 located at the same long side surface 231 do not interfere with each other.

[0071] Referring to Figure 9 and Figure 10In some embodiments, the number of ventilation holes 25 on at least one long side 231 is multiple, and the multiple ventilation holes 25 are arranged at intervals. For example, one long side 231 is provided with multiple ventilation holes 25. For another example, both long sides 231 are provided with multiple ventilation holes 25. The number of ventilation holes 25 provided on the long side 231 can be 2, 3, 4, etc. In this way, the multiple ventilation holes 25 can improve the ventilation effect of the heating element 20, and help to improve the liquid guiding capability of the liquid guiding hole 24.

[0072] As shown in Figure 8 some embodiments, both short sides 232 are provided with ventilation holes 25. In this way, the heating element 20 can realize the function of ventilation from the short side 232. Specifically, the ventilation holes 25 on the two short sides 232 can be symmetrically arranged in the length direction of the heating element 20.

[0073] In some embodiments, the aperture of the ventilation hole 25 is larger than the aperture of the liquid guiding hole 24. In this way, the larger aperture of the ventilation hole 25 can improve the ventilation efficiency.

[0074] It should be noted that when the ventilation hole 25 and the liquid guiding hole 24 are both circular holes, the apertures of the ventilation hole 25 and the liquid guiding hole 24 are the diameters of the circular holes, and when the ventilation hole 25 and the liquid guiding hole 24 are both non-circular holes, the apertures of the ventilation hole 25 and the liquid guiding hole 24 are the diameters of the circumscribed circular holes.

[0075] In some embodiments, the opening profile of the ventilation hole 25 on the first surface 21 is in the shape of a circular arc. Or in other words, in the direction perpendicular to the thickness direction of the heating element 20, the cross-sectional profile of the ventilation hole 25 is in the shape of a circular arc. The cross-sectional profile of the ventilation hole 25 can be in the shape of a major arc, a minor arc, a semicircle, etc. In this way, the ventilation hole 25 is easy to process and manufacture, and the manufacturing cost of the heating element 20 can be reduced.

[0076] In some embodiments, the opening profile of the ventilation hole 25 on the first surface 21 is in the shape of a semicircular arc. In this way, the ventilation hole 25 is easy to process, and when the heating element 20 is mass-produced, the consistency is good.

[0077] Please refer to Figures 12-14 In some embodiments, the opening profile of the ventilation hole 25 on the first surface 21 is in the shape of a broken line. In this way, the shape of the ventilation hole 25 can adapt to different processing methods, making the heating element easier to process and manufacture.

[0078] In some embodiments, the ventilation hole 25 has a pore size ranging from 200 μm to 500 μm. For example, the ventilation hole 25 can have a pore size of 200 μm, 300 μm, 400 μm, 500 μm, or the like. In this way, when the ventilation hole 25 has a pore size within this range, the ventilation hole 25 can improve the ventilation efficiency while preventing liquid leakage. Specifically, when the ventilation hole 25 has a pore size greater than 500 μm, there is a risk of liquid leakage. When the ventilation hole 25 has a pore size less than 200 μm, the ventilation hole 25 cannot achieve a good ventilation effect, thereby affecting the liquid flow rate and the atomization efficiency.

[0079] The pore size of the ventilation hole 25 can be matched with the atomized liquid. The viscosity of the atomized liquid can be greater than 10,000 cps at room temperature (25°C). In the embodiments of the present application, the viscosity is measured according to the method of GBT 17473.5-1998, which is a method for measuring the viscosity of precious metal paste for thick film microelectronics technology. The greater the viscosity of the atomized liquid, the weaker the flowability of the atomized liquid, and the greater the flow resistance. In this case, a hole with a larger pore size can be provided.

[0080] In some embodiments, the liquid guide hole 24 has a pore size ranging from 10 μm to 100 μm. For example, the liquid guide hole 24 can have a pore size of 10 μm, 20 μm, 30 μm, 40 μm, 60 μm, 88 μm, 100 μm (microns), or the like. When the pore size of the liquid guide hole 24 is less than 10 μm, the liquid guide hole 24 has a greater adsorption force on the atomized liquid, which is not conducive to the flow of the atomized liquid through the liquid guide hole 24. In addition, the liquid guide hole 24 with a pore size less than 10 μm is also difficult to manufacture, which increases the manufacturing cost of the heating element 20. When the pore size of the liquid guide hole 24 is greater than 100 μm, the liquid guide hole 24 has poor flow stabilization and liquid locking capabilities, which is not conducive to the uniformity of the atomization of the heating element 20, and can cause the atomization device 100 to leak liquid when not in operation.

[0081] In this way, when the pore size of the liquid guide hole 24 is within the above range, the liquid guide hole 24 can smoothly guide the liquid, improve the uniformity of the atomization of the heating element 20, and prevent the heating element 20 from leaking liquid when not in operation.

[0082] Please refer again to Figure 7 In some embodiments, the heating element 20 includes a substrate 26 and a heating film 27 disposed on the substrate 26, and the liquid guide hole 24 and the ventilation hole 25 both penetrate the substrate 26 and the heating film 27. In this way, 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, and the substrate 26 makes the installation of the heating film 27 more stable. The substrate 26 can be made of glass, dense ceramic, or the like, and the present application does not make any further limitation on the specific material of the substrate 26.

[0083] The heat generating film 27 can be made of a material that is electrically conductive and easy to generate heat, such as a metal or an alloy. For example, the material of the heat generating film 27 can be platinum, palladium, palladium-copper alloy, gold-silver-platinum alloy, gold-silver alloy, palladium-silver alloy, gold-platinum alloy, or the like. The heat generating film 27 can be provided on the surface of the base 26 by printing, plating, pasting, sputtering, or the like.

[0084] Referring to Figure 15 and Figure 16 The manufacturing method of the heat generating element 20 of the embodiment includes:

[0085] S10, providing a plate body 300;

[0086] S20, forming a plurality of heat generating units 310 arranged repeatedly on the plate body 300, each of the heat generating units 310 including a plurality of liquid guide holes 24, and an edge of the heat generating unit 310 being provided with a through hole 320, the through hole 320 and the liquid guide hole 24 both penetrating the plate body 300;

[0087] S30, cutting the plate body 300 along a predetermined path 330 to form each of the heat generating units 310 into a heat generating element 20, the predetermined path 330 passing through the through hole 320, and the side surface 23 of the heat generating element 20 having an air exchange hole 25 formed by the cutting of the through hole 320.

[0088] In the description of the embodiments of the present application, the terms "first", "second", "third", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0089] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A heating element for an atomisation device, characterised in that, The heating element comprises a first surface, a second surface and a side surface connecting the first surface and the second surface, and is provided with a liquid guiding hole and an air exchange hole, the liquid guiding hole penetrating through the first surface and the second surface and being arranged apart from the side surface, and the air exchange hole penetrating through the first surface, the second surface and the side surface.

2. A heat generating element according to claim 1, characterised in that The air exchange hole is arranged at a corner of the heating element.

3. A heat generating element according to claim 2, characterised in that All corners of the heating element are provided with the air exchange hole.

4. The heat-generating element according to claim 1, characterized in that The side surface comprises two long side surfaces and two short side surfaces, the short side surfaces connecting the long side surfaces, and the long side surfaces and / or the short side surfaces being provided with the air exchange hole.

5. A heat generating element according to claim 4, characterised in that, Both of the long side surfaces are provided with the air exchange hole.

6. A heat-generating element according to claim 5, characterised in that The air exchange holes of the two long side surfaces are symmetrically arranged in a width direction of the heating element.

7. The heat-generating element according to claim 5, characterized in that All the air exchange holes of the two long side surfaces are alternately arranged in a length direction of the heating element.

8. The heat-generating element according to claim 5, characterized in that The number of the air exchange holes on at least one of the long side surfaces is multiple, and the multiple air exchange holes are arranged apart.

9. The heat-generating element according to claim 4, characterized in that Both of the short side surfaces are provided with the air exchange hole.

10. The heat generating element according to claim 1, characterized in that The air exchange hole has a larger aperture than the liquid guiding hole.

11. The heat generating element according to claim 1, characterized in that An opening profile of the air exchange hole on the first surface is in a circular arc shape.

12. A heat generating element according to claim 11, characterised in that The opening profile is in a semi-circular arc shape.

13. The heat generating element according to claim 1, characterized in that The opening profile of the air exchange hole on the first surface is in a zigzag shape.

14. The heat generating element according to claim 1, characterized in that The air exchange hole has an aperture ranging from 200 μm to 500 μm.

15. The heat generating element according to claim 1, characterized in that The liquid guiding hole has an aperture ranging from 10 μm to 100 μm.

16. The heat generating element according to claim 1, characterized in that The heating element comprises a substrate and a heating film arranged on the substrate, and the liquid guiding hole and the air exchange hole both penetrate through the substrate and the heating film.

17. An atomising device characterised in that Comprise: a housing provided with a liquid storage chamber; and The heating element of any one of claims 1-16, wherein the air exchange hole is in communication with the liquid storage chamber.

18. An atomising device characterised in that Comprise: a battery assembly; and The atomization device of claim 17, wherein the battery assembly is electrically connected with the heating element.

Images