Atomizer coil and atomizer

Abstract

This utility model discloses an atomizing core and an atomizer. The atomizing core includes a porous cup body, a first heating element, and a second heating element. The porous cup body includes an inner wall surface and an outer wall surface. The inner wall surface forms a cavity for containing the atomizing medium. At least a portion of the first heating element is disposed on the inner wall surface. The first heating element is used to preheat the atomizing medium in the cavity. The second heating element is disposed on the outer wall surface and is used to heat and atomize the atomizing medium seeping from the outer wall surface. The first heating element preheats the atomizing medium in the cavity, causing it to melt into an atomizing liquid. The atomizing liquid seeps out through the porous cup body to the outer wall surface. The second heating element heats and atomizes the seeping atomizing liquid to generate an aerosol. The preheating of the first heating element allows for a timely and stable supply of atomizing liquid to the second heating element, ensuring that the second heating element has sufficient contact with the atomizing liquid during the heating process. This effectively prevents the second heating element from dry burning and avoids core scorching.

Description

Technical Field

[0001] This utility model relates to the field of atomizers, and in particular to an atomizing core and an atomizer. Background Technology

[0002] An atomizing coil is a device that uses contact conduction heating to convert an atomizing medium into an inhalable aerosol, widely used in electronic cigarettes, medical atomization products, and more. The atomizing coil is a crucial component of an atomizer. It heats the atomizing medium, which is carried or transferred to the atomizing surface, via a heating element, causing the medium to atomize. In traditional paste atomizers (used for heating and atomizing paste), the paste cannot quickly melt into a liquid state and be transferred to the atomizing surface, easily causing the heating element to dry-burn, resulting in a burnt coil. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an atomizing core that, through the preheating of the first heating element, provides a timely and stable supply of atomizing liquid to the second heating element, effectively preventing the second heating element from dry-burning and causing the core to smother.

[0004] This utility model also proposes an atomizer having the above-mentioned atomizing core.

[0005] According to a first aspect of the present invention, the atomizing core includes:

[0006] A porous cup body includes an inner wall surface and an outer wall surface, wherein the inner wall surface forms a receiving cavity for containing an atomizing medium;

[0007] A first heating element, at least a portion of which is disposed on the inner wall surface, is used to preheat the atomizing medium within the accommodating cavity; and

[0008] A second heating element is disposed on the outer wall surface, and the second heating element is used to heat and atomize the atomizing medium seeping from the outer wall surface.

[0009] The atomizing core according to the first aspect of the present invention has at least the following beneficial effects:

[0010] In this invention, the atomizing medium within the receiving cavity is preheated by a first heating element, causing it to melt into an atomized liquid. This liquid then seeps outwards through the pores of the porous cup to the outer wall. A second heating element further heats and atomizes the seeping liquid, generating an aerosol. Thus, the preheating by the first heating element ensures a timely and stable supply of atomized liquid to the second heating element, allowing it to maintain sufficient contact with the liquid during heating. This effectively prevents the second heating element from dry-burning and avoids wick scorching. By placing heating elements on at least two different surfaces of the porous cup, this invention increases the heating area of ​​the atomizing medium, facilitating the melting of more of the medium and promoting rapid melting. Moreover, by placing at least a portion of the first heating element on the inner wall surface, the first heating element can directly contact the atomizing medium, allowing the heat generated by the first heating element to be quickly transferred to the atomizing medium. The atomizing medium can reach the preheating temperature in a very short time, causing it to melt into atomized liquid more quickly. This allows the atomized liquid to seep out through the porous cup body more quickly and be transferred to the outer wall surface to be heated and atomized by the second heating element. This can better prevent the second heating element from dry burning and significantly improve the anti-dry burning performance.

[0011] According to some embodiments of the present invention, one end of the porous cup body is provided with an opening, the inner wall surface includes a first bottom surface and an inner side surface connected to the first bottom surface, the first bottom surface is opposite to the opening, the first bottom surface and the inner side surface form at least part of the receiving cavity, and the first heating element includes a first heating element, the first heating element being disposed on the first bottom surface and / or the inner side surface.

[0012] According to some embodiments of the present invention, the first heating element includes a first heating part and a second heating part connected to the first heating part. The first heating part is disposed on the first bottom surface, and the second heating part is disposed on the inner side surface. The first heating part covers part of the first bottom surface, and the second heating part covers at least part of the inner side surface.

[0013] According to some embodiments of the present invention, the material of the first heating element is the same as that of the second heating element, or the material of the first heating element is different from that of the second heating element.

[0014] According to some embodiments of the present invention, at least a portion of the cavity space of the receiving cavity is configured as an annular shape, and the inner side includes a first inner side and a second inner side that are respectively connected to the first bottom surface. The first inner side and the second inner side are opposite to each other and spaced apart, and the second heating element is disposed on the first inner side and / or the second inner side.

[0015] According to some embodiments of the present invention, the first heating element further includes a second heating element, which is disposed on the outer wall surface and connected to the first heating element through a connecting portion passing through the porous cup body.

[0016] According to some embodiments of the present invention, one end of the porous cup body is provided with an opening, the outer wall surface includes a second bottom surface and an outer side surface connected to the second bottom surface, the second bottom surface is opposite to the opening, and the second heating element is disposed on the second bottom surface and / or the outer side surface.

[0017] According to some embodiments of this utility model, the resistivity of the first heating element is 0-0.8 μΩ·m, the operating voltage is 0.5-2V, and the power is 0.4-7W; and / or,

[0018] The resistivity of the second heating element is 0-1.2 μΩ·m, the operating voltage is 2-8V, and the power is 4-64W.

[0019] According to some embodiments of the present invention, the thermal conductivity of the porous cup body is less than or equal to 1 W / (m·K);

[0020] And / or, the porous cup body includes a bottom wall plate with a thickness of 1 mm to 3 mm.

[0021] An atomizer according to a second aspect of the present invention includes a power module and an atomizing core as described in any of the above embodiments, wherein the power module is electrically connected to the atomizing core.

[0022] The atomizer according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0023] By employing the atomizing core of the first embodiment, the atomizing core preheats the atomizing medium within the receiving cavity via a first heating element, causing the atomizing medium to melt into an atomized liquid. The atomized liquid then seeps outward through the pores of the porous cup to the outer wall surface. A second heating element further heats and atomizes the seeping atomized liquid, generating an aerosol. Thus, the preheating by the first heating element ensures a timely and stable supply of atomized liquid to the second heating element, allowing it to maintain sufficient contact with the liquid during heating. This effectively prevents the second heating element from dry-burning and avoids core scorching. This invention increases the heating area of ​​the atomizing medium by providing heating elements on at least two different surfaces of the porous cup, which facilitates the melting of more atomizing medium and promotes rapid melting. Moreover, by placing at least a portion of the first heating element on the inner wall surface, the first heating element can directly contact the atomizing medium, allowing the heat generated by the first heating element to be quickly transferred to the atomizing medium. The atomizing medium can reach the preheating temperature in a very short time, causing it to melt into atomized liquid more quickly. This allows the atomized liquid to seep out through the porous cup body more quickly and be transferred to the outer wall surface to be heated and atomized by the second heating element. This can better prevent the second heating element from dry burning and significantly improve the anti-dry burning performance.

[0024] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a first-view structural schematic diagram of the atomizing core of the first embodiment of this utility model;

[0027] Figure 2 This is a second-view structural schematic diagram of the atomizing core of the first embodiment of this utility model;

[0028] Figure 3 This is a cross-sectional view of the atomizing core according to the first embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the first heating element according to the first embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the atomizing core according to the second embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the atomizing core according to the third embodiment of the present invention;

[0032] Figure 7This is a schematic diagram of the atomizing core according to the fourth embodiment of the present invention;

[0033] Figure 8 This is a cross-sectional view of the atomizing core according to the fourth embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the first connecting member of the atomizing core in the fourth embodiment of this utility model;

[0035] Figure 10 This is a schematic diagram of the atomizing core according to the fifth embodiment of this utility model;

[0036] Figure 11 This is a cross-sectional view of the atomizing core according to the fifth embodiment of this utility model;

[0037] Figure 12 This is a structural schematic diagram of the first connecting member of the atomizing core in the fifth embodiment of this utility model.

[0038] Figure label:

[0039] 10. Atomizer coil; 100. Porous cup body; 101. Bottom wall plate; 102. Side wall plate; 103. Protruding post;

[0040] 110. Inner wall surface; 111. First bottom surface; 112. Inner side surface; 1121. First inner side surface; 1122. Second inner side surface;

[0041] 120. Outer wall surface; 121. Second bottom surface; 122. Outer side surface; 130. Receiving cavity; 200. First heating element;

[0042] 210. First heating element; 211. First heating section; 212. Second heating section; 220. Second heating element;

[0043] 300. Second heating element. Detailed Implementation

[0044] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0047] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0048] In the description of this utility model, the terms "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 that embodiment or example, which are included in at least one embodiment or example of this utility model. 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.

[0049] This invention provides an atomizing core. This atomizing core is mainly used for heating pastes, such as heating and atomizing tobacco paste. The following will primarily use tobacco paste as an example to describe the atomizing core in detail.

[0050] Please refer to Figures 1 to 4 The atomizing core 10 includes a porous cup body 100 and a heating element. The porous cup body 100 serves as a carrier for holding and containing the atomizing medium, and also supports the heating element. The porous cup body 100 has a receiving cavity 130 for containing the atomizing medium. The porous cup body 100 includes an inner wall surface 110 and an outer wall surface 120, with the inner wall surface 110 forming the receiving cavity 130. The porous cup body 100 can have various shapes; see references... Figure 1 , Figure 5 and Figure 6As shown, the porous cup body 100 can be cylindrical, elliptical, or square, etc., and this application embodiment does not limit this.

[0051] The porous cup 100 also serves as a transport component for the atomizing medium. Understandably, the porous cup 100 has numerous micropores and pores through which the atomizing medium within the receiving cavity 130 can seep out. Specifically, when the atomizing medium is e-liquid, the e-liquid can be heated and melted into e-liquid. The melted e-liquid seeps out through the pores of the porous cup 100 to be further heated and atomized into an aerosol by a heating element. By rationally controlling the pore size and porosity of the micropores in the porous cup 100, the e-liquid can seep out from the porous cup 100 stably, uniformly, and at a constant rate, achieving stable atomization into an aerosol.

[0052] In one embodiment, the porous cup 100 is configured with a porosity of 40-60% and a pore size of 15-35 micrometers. The porous cup 100 can be made of porous ceramic or porous glass.

[0053] In related technologies, traditional paste atomizers mostly only have heating elements on the atomizing surface of the atomizing coil. During use, the paste cannot be quickly melted into a liquid and transferred to the atomizing surface. In some cases, the paste may even be directly atomized into gas at high temperatures, which can easily cause the heating element to burn out, resulting in a burnt coil and affecting the atomization quality. For example, when the atomizer is used in electronic cigarettes, a burnt coil will seriously affect the user's inhalation experience.

[0054] To address the aforementioned issues, in this embodiment, the heating element includes a first heating element 200 and a second heating element 300. At least a portion of the first heating element 200 is disposed on the inner wall surface 110, and the first heating element 200 is used to preheat the atomizing medium within the receiving cavity 130. The second heating element 300 is disposed on the outer wall surface 120, and the second heating element 300 is used to heat and atomize the atomizing medium seeping from the outer wall surface 120. It is understood that the atomizing medium seeping from the outer wall surface is the contained atomizing liquid. The first heating element 200 and the second heating element 300 can be configured to generate heat when energized.

[0055] Taking e-liquid as an example, during the use of the atomizing core 10, the first heating element 200 preheats the e-liquid in the receiving cavity 130. The heat generated by the first heating element 200 melts the e-liquid into e-liquid. The melted e-liquid seeps out through the pores of the porous cup 100 to the outer wall surface 120. The second heating element 300 heats the e-liquid seeping from the outer wall surface 120. The heat generated by the second heating element 300 atomizes the e-liquid into an aerosol that can be inhaled by the user. It is understandable that the preheating temperature of the atomizing medium by the first heating element 200 is lower than the heating temperature of the atomizing medium by the second heating element 300, so that the atomizing medium in the receiving cavity 130 melts into an atomizing liquid, rather than being directly atomized.

[0056] In this invention, the first heating element 200 preheats the atomizing medium in the receiving cavity 130, causing the atomizing medium in the receiving cavity 130 to melt into atomized liquid. The atomized liquid seeps out through the pores of the porous cup 100 to the outer wall surface 120. The second heating element 300 further heats and atomizes the seeping atomized liquid to produce an aerosol. In this way, the preheating of the first heating element 200 can provide the second heating element 300 with a timely and stable supply of atomized liquid, so that the second heating element 300 can come into contact with sufficient atomized liquid during the heating process, thereby effectively preventing the second heating element 300 from dry burning and preventing the core from scorching.

[0057] This invention increases the heating area of ​​the atomizing medium by providing a first heating element 200 on the inner wall surface 110 and a second heating element 300 on the outer wall surface 120, i.e., heating elements are provided on at least two different surfaces of the porous cup body 100. This facilitates the melting of more atomizing medium and promotes rapid melting. Furthermore, by placing at least a portion of the first heating element 200 on the inner wall surface 110, the first heating element 200 can directly contact the atomizing medium, allowing the heat generated by the first heating element 200 to be quickly transferred to the atomizing medium. This enables the atomizing medium to reach its preheating temperature in a very short time, allowing it to melt into an atomized liquid more quickly. The atomized liquid then seeps out of the porous cup body 100 more rapidly and is transferred to the outer wall surface 120 where it is heated and atomized by the second heating element 300. This better prevents the second heating element 300 from dry-burning, significantly improving its anti-dry-burning performance and effectively avoiding wick burning.

[0058] The first heating element 200 is used to preheat the atomizing medium. The first heating element 200 only needs a relatively low heating temperature to melt the tobacco paste. The heating temperature of the first heating element 200 can be 50℃-120℃. In one embodiment, the heating temperature of the first heating element 200 is 60℃-80℃.

[0059] The second heating element 300 is used to heat and atomize the atomizing medium. The heating temperature of the second heating element 300 is relatively high, needing to reach the atomization temperature at which the tobacco paste can be atomized into an aerosol. The heating temperature of the second heating element 300 can be 150℃-350℃. In one embodiment, the heating temperature of the second heating element 300 is 200℃-300℃.

[0060] The first heating element 200 and the second heating element 300 are configured to generate heat when energized. By controlling the energization status of the first heating element 200 and the second heating element 300, the first heating element 200 and the second heating element 300 can reach different heating temperatures. In some embodiments, the operating voltage of the first heating element 200 is a first voltage, and the operating voltage of the second heating element 300 is a second voltage, wherein the first voltage is less than the second voltage.

[0061] In one embodiment, the first heating element 200 operates at a voltage of 0.5-2V, and the second heating element 300 operates at a voltage of 2-8V. The first heating element 200 and the second heating element 300 can be electrically connected to the power module of the atomizer, and the power module can regulate the operating voltage of the first heating element 200 and the second heating element 300 through a control circuit.

[0062] Of course, in other embodiments, the energizing state of the first heating element 200 and the second heating element 300 can be controlled by setting their resistivity, power, etc., so that they are at different heating temperatures. In one embodiment, the resistivity of the first heating element 200 is 0-0.8 μΩ·m, and the resistivity of the second heating element is 0-1.2 μΩ·m. In another embodiment, the power of the first heating element is set to 0.4-7 W, and the power of the second heating element is set to 4-64 W.

[0063] The material of the first heating element 200 has a certain TCR (temperature resistivity). The power module of the atomizer can include an MCU chip. The first heating element 200 can be connected to the MCU chip through a control circuit. The MCU chip dynamically adjusts the output voltage / power to match the resistance change curve, so that the heating temperature of the first heating element 200 can always be kept constant (with very small temperature fluctuations). When the temperature is high, the MCU chip can output control to automatically cut off the heating circuit, while when the temperature is low, it will start heating to achieve the best preheating effect and better preheat the atomizing medium.

[0064] The porous cup body 100 is designed in the shape of a cup, with an opening (not shown) at one end. In some embodiments, the inner wall surface 110 includes a first bottom surface 111 and an inner side surface 112 connected to the first bottom surface 111. The first bottom surface 111 is opposite to the opening, and the first bottom surface 111 is the inner bottom surface of the receiving cavity 130. The first bottom surface 111 and the inner side surface 112 form at least a portion of the receiving cavity 130. The first heating element 200 includes a first heating element 210, which is disposed on the first bottom surface 111 and / or the inner side surface 112.

[0065] In some embodiments, the outer wall surface 120 includes a second bottom surface 121 and an outer side surface 122 connected to the second bottom surface 121. The second bottom surface 121 is opposite to the opening. The second bottom surface 121 is the outer bottom surface of the porous cup body 100. The second heating element 300 is disposed on the second bottom surface 121 and / or the outer side surface 122.

[0066] For example, in one embodiment, the first heating element 210 is disposed only on the first bottom surface 111. The first heating element 210 can preheat the bottom part of the e-liquid, causing the bottom part of the e-liquid to melt. The melted e-liquid can seep downward from the first bottom surface 111 to the second bottom surface 121 under the action of gravity. In this embodiment, the second heating element 300 can be disposed on the second bottom surface 121.

[0067] In another embodiment, the first heating element 210 is only disposed on the inner surface 112. The first heating element 210 can preheat the peripheral portion of the e-liquid, causing the peripheral portion of the e-liquid to melt. The melted e-liquid can seep outward from the inner surface 112, or it can flow downward under gravity to the first bottom surface 111, and then continue to seep downward from the first bottom surface 111 to the second bottom surface 121. In this embodiment, the second heating element 300 can be disposed only on the second bottom surface 121, or only on the outer surface 122, or both the second bottom surface 121 and the outer surface 122 can be disposed.

[0068] In another embodiment, the first heating element 210 is disposed on the first bottom surface 111 and the inner surface 112. The first heating element 210 can preheat both the bottom and peripheral portions of the e-liquid, allowing both to melt. The melted e-liquid seeps outward from the inner surface 112, while some seeps downward from the first bottom surface 111 to the second bottom surface 121 under gravity. In this embodiment, the second heating element 300 can be disposed only on the second bottom surface 121, or it can be disposed on both the second bottom surface 121 and the outer surface 122.

[0069] In one embodiment, please refer to Figure 3 and Figure 4 The first heating element 200 is disposed on both the first bottom surface 111 and the inner side surface 112. The first heating element 210 includes a first heating part 211 and a second heating part 212 connected to the first heating part 211. The first heating part 211 is disposed on the first bottom surface 111, and the second heating part 212 is disposed on the inner side surface 112. The first heating part 211 covers a portion of the first bottom surface 111 and preheats the bottom part of the e-liquid, causing the melted e-liquid at the bottom of the e-liquid to seep downwards from the first bottom surface 111.

[0070] The second heating element 212 covers at least a portion of the inner surface 112. It is understood that the second heating element 212 may cover a portion of the inner surface 112 or the entire inner surface 112. When the second heating element 212 covers a portion of the inner surface 112, the e-liquid preheated and melted by the second heating element 212 on the periphery of the e-liquid can directly seep outwards from the inner surface 112; when the second heating element 212 covers the entire inner surface 112, the e-liquid preheated and melted on the periphery of the e-liquid can flow downwards to the first bottom surface 111 under gravity and seep downwards from the first bottom surface 111.

[0071] Since the first heating element 211 and the second heating element 212 preheat different parts of the e-liquid, the preheating temperature of the first heating element 211 and the preheating temperature of the second heating element 212 can be the same or different, depending on the functional requirements of the atomizer product. For example, the first heating element 211 can be configured to heat to a first preheating temperature so that the bottom part of the e-liquid can melt quickly, thereby rapidly supplying e-liquid to the second heating element 300. The second heating element 212 can be configured to heat to a second preheating temperature, which can preheat and maintain the e-liquid at a certain temperature to facilitate continuous melting of the e-liquid. For example, the preheating temperatures of the first heating element 211 and the second heating element 212 can be controlled to be the same or different by setting the materials of the two elements.

[0072] In one embodiment, the material of the first heating element 211 is the same as that of the second heating element 212.

[0073] In another embodiment, the material of the first heating element 211 is different from that of the second heating element 212.

[0074] It is understood that the receiving cavity 130 can be designed in various shapes, and depending on the shape of the receiving cavity 130, the inner surface 112 may include one or more surfaces. For example, in some embodiments, please refer to... Figure 7 and Figure 8 At least a portion of the cavity space of the receiving cavity 130 is annular, and the inner side 112 includes a first inner side 1121 and a second inner side 1122 that are respectively connected to the first bottom surface 111. The first inner side 1121 and the second inner side 1122 are opposite to each other and spaced apart. The second heating part 212 may be disposed on the first inner side 1121 and / or the second inner side 1122.

[0075] Please refer to Figure 7 , Figure 8 and Figure 9The porous cup body 100 includes a side wall plate 102, a bottom wall plate 101, and a protruding post 103 protruding from the bottom wall plate 101. The side wall plate 102 is connected to the bottom wall plate 101 and surrounds the protruding post 103. The outer peripheral surface of the protruding post 103 is opposite to the inner peripheral surface of the side wall plate 102. The first inner surface 1121 is the inner peripheral surface of the side wall plate 102, and the second inner surface 1122 is the outer peripheral surface of the protruding post 103. In one embodiment, as shown... Figure 8 As shown, the first heating element 211 is disposed on the first bottom surface 111, and the second heating element 212 is disposed on the second inner surface 1122.

[0076] Of course, the first heating element 200 is not limited to being disposed on the inner wall surface 110. When the first heating element 210 of the first heating element 200 is disposed on the inner wall surface 110, part of the structure of the first heating element 200 can also be disposed on the outer wall surface 120, so that part of the structure of the first heating element 200 can also preheat the tobacco paste on the outside of the porous cup body 100.

[0077] For example, in some embodiments, please refer to Figures 10 to 12 The first heating element 200 also includes a second heating element 220, which is disposed on the outer wall surface 120. The heat generated by the second heating element 220 is transferred to the porous cup 100, causing the temperature of the porous cup 100 to gradually increase. The temperature of the porous cup 100 is used to preheat and melt the tobacco paste, thus enabling the second heating element 220 to preheat the tobacco paste on the outside of the porous cup 100. It is understandable that the second heating element 220, disposed on the outer wall surface 120, can also maintain the temperature of the porous cup 100, stabilizing the temperature of the porous cup 100 at a certain level, allowing the tobacco paste to continue melting and preventing it from adhering to the inner wall surface 110.

[0078] In one embodiment, reference Figure 10 and Figure 11 As shown, the first heating element 210 of the first heating element 200 is disposed on the first bottom surface 111, the second heating element 220 of the first heating element 200 is disposed on the outer side surface 122, and the second heating element 300 is disposed on the second bottom surface 121.

[0079] like Figure 11 and Figure 12 As shown, to facilitate power supply to the first heating element 200, the second heating element 220 and the first heating element 210 can be connected as a whole. Specifically, the second heating element 220 can be connected to the first heating element 210 through a connecting part (not shown) that passes through the porous cup body 100.

[0080] To avoid affecting the temperature of the atomization zone, the porous cup 100 is required to have a low thermal conductivity. The porous cup 100 can be made of a material with low thermal conductivity. By configuring the porous cup 100 to have a low thermal conductivity, the heat generated by the second heating element 300 can be prevented from being rapidly transferred to the porous cup 100, thus avoiding affecting the temperature of the atomization zone between the second heating element 300 and the outer wall surface 120. This effectively ensures that the atomization zone can reach the temperature required for the atomized liquid to atomize into an aerosol.

[0081] In one embodiment, the thermal conductivity of the porous cup 100 is less than or equal to 1 W / (m·K).

[0082] In one embodiment, the porous cup body 100 includes a bottom wall plate 101, which is a wall plate opposite to the opening of the porous cup body 100. The thickness of the bottom wall plate 101 is 1 mm to 3 mm, that is, the distance between the first bottom surface 111 and the second bottom surface 121 is 1 mm to 3 mm.

[0083] Since the atomizing liquid mainly seeps downwards in a vertical direction due to gravity, in some embodiments, the second heating element 300 is mainly disposed on the second bottom surface 121. The second heating element 300 generates an aerosol by heating and atomizing the atomizing liquid seeping from the second bottom surface 121.

[0084] The distance between the first bottom surface 111 and the second bottom surface 121 affects the leakage rate of the atomizing liquid. When the thickness of the bottom wall plate 101 is less than 1 mm, the distance between the first bottom surface 111 and the second bottom surface 121 is too small, and the leakage rate of the atomizing liquid will be very fast, resulting in an excessively rapid supply of atomizing liquid. The atomizing liquid will continuously carry away the heat generated by the second heating element 300, which may cause the temperature in the atomization area to fail to reach the atomization temperature, thus affecting the atomization effect. When the thickness of the bottom wall plate 101 is greater than 3 mm, the distance between the first bottom surface 111 and the second bottom surface 121 is too large, and the leakage rate of the atomizing liquid slows down, resulting in a slower supply of atomizing liquid. This may lead to insufficient supply of atomizing liquid, causing the second heating element 300 to dry-burn and resulting in a scorched core.

[0085] In this embodiment, by setting the thickness of the bottom wall plate 101 to 1mm to 3mm, the distance between the first bottom surface 111 and the second bottom surface 121 is appropriate. This allows the atomizing liquid to seep out at an appropriate rate and ensures a sufficient supply of atomizing liquid. This not only ensures that the temperature of the atomizing area reaches the atomizing temperature, but also effectively prevents the second heating element 300 from dry burning, thus preventing the core from scorching and ensuring a good atomizing effect.

[0086] In some embodiments, the porous cup body 100 is integrated with the first heating element 200 and the second heating element 300 into a single structure. By making the porous cup body 100, the first heating element 200, and the second heating element 300 into a single structure, on the one hand, the first heating element 200 and the second heating element 300 are firmly and stably disposed on the porous cup body 100, which can effectively prevent the first heating element 200 and the second heating element 300 from falling off the porous cup body 100. On the other hand, it eliminates the need for the first heating element 200 and the second heating element 300 to be connected to the porous cup body 100 separately, simplifying the assembly of the atomizing core 10.

[0087] In one embodiment, the porous cup body 100, the first heating element 200, and the second heating element 300 are integrally formed by sintering.

[0088] This invention also provides an atomizer, which includes a power module and an atomizing core 10 based on any of the above embodiments, wherein the power module is electrically connected to the atomizing core 10. The atomizer provided by this invention can be used in electronic cigarettes and also in medical atomization products.

[0089] Since the atomizer adopts all the technical solutions of the atomizing core 10 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments.

[0090] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. An atomizing core, characterized in that, include: A porous cup body includes an inner wall surface and an outer wall surface, wherein the inner wall surface forms a receiving cavity for containing an atomizing medium; A first heating element, at least a portion of which is disposed on the inner wall surface, is used to preheat the atomizing medium within the accommodating cavity; and A second heating element is disposed on the outer wall surface, and the second heating element is used to heat and atomize the atomizing medium seeping from the outer wall surface.

2. The atomizer core of claim 1, wherein, One end of the porous cup body is provided with an opening, the inner wall surface includes a first bottom surface and an inner side surface connected to the first bottom surface, the first bottom surface is opposite to the opening, the first bottom surface and the inner side surface form at least part of the receiving cavity, the first heating element includes a first heating element, the first heating element is disposed on the first bottom surface and / or the inner side surface.

3. The atomizer core of claim 2, wherein, The first heating element includes a first heating part and a second heating part connected to the first heating part. The first heating part is disposed on the first bottom surface, and the second heating part is disposed on the inner side surface. The first heating part covers a portion of the first bottom surface, and the second heating part covers at least a portion of the inner side surface.

4. The atomizer core of claim 3, wherein, The material of the first heating element is the same as that of the second heating element, or the material of the first heating element is different from that of the second heating element.

5. The atomizer core of claim 3, wherein, At least a portion of the cavity space is annular, and the inner side includes a first inner side and a second inner side that are respectively connected to the first bottom surface. The first inner side and the second inner side are opposite to each other and spaced apart. The second heating element is disposed on the first inner side and / or the second inner side.

6. The atomizer core of claim 2, wherein, The first heating element further includes a second heating element, which is disposed on the outer wall surface and is connected to the first heating element through a connecting part passing through the porous cup body.

7. The atomizer core according to any one of claims 1 to 6, characterized in that The porous cup body has an opening at one end, and the outer wall surface includes a second bottom surface and an outer side surface connected to the second bottom surface. The second bottom surface is opposite to the opening, and the second heating element is disposed on the second bottom surface and / or the outer side surface.

8. The atomizer wick of any of claims 1-6, wherein, The first heating element has a resistivity of 0-0.8 μΩ·m, an operating voltage of 0.5-2V, and a power of 0.4-7W; and / or, The resistivity of the second heating element is 0-1.2 μΩ·m, the operating voltage is 2-8V, and the power is 4-64W.

9. The atomizer wick of any of claims 1-6, wherein, The thermal conductivity of the porous cup body is less than or equal to 1 W / (m·K); And / or, the porous cup body includes a bottom wall plate with a thickness of 1 mm to 3 mm.

10. Nebulizer, characterized in that It includes a power module and an atomizing core as described in any one of claims 1 to 9, wherein the power module is electrically connected to the atomizing core.

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