Atomizing core and electronic atomizer
By providing multiple heat generating parts connected in parallel in the atomization core of the electronic atomizer, the problems of low atomization efficiency and carbon deposits in the prior art are solved, and higher atomization efficiency and longer service life are achieved.
Patent Information
- Application Number
- CN202420672721.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Due to the limitation of a single heating matrix, the atomization core of the existing electronic atomizer has low atomization efficiency and is prone to carbon deposits after a long period of use, which affects the taste and service life.
A plurality of heat generating parts connected in parallel are arranged on the porous substrate, including a first current collecting part and a second current collecting part. At least two heat generating parts are arranged at intervals to share the current collecting part to increase the heating power and reduce carbon deposits.
It improves the atomization efficiency of the atomization core, meets the use needs of large smoke, and reduces the carbon deposit in the heating part, ensures the atomization taste and extends the service life.
Smart Images
Figure CN222622216U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic atomizers, in particular to an atomizing core and an electronic atomizer. Background Art
[0002] Electronic vaporizers, also known as virtual cigarettes, steam cigarettes, e-cigarettes, and aerosol-generating devices, are primarily used to simulate the sensation of smoking without compromising health, either as a smoking cessation aid or as a cigarette replacement. The atomizer core is a key component of an electronic vaporizer, heating the atomized liquid to produce vapor for the user to inhale.
[0003] The atomizer core generally includes a porous ceramic substrate and a heating substrate disposed on the porous ceramic substrate. The heating substrate heats the porous ceramic substrate through direct contact, thereby heating and atomizing the e-liquid in the porous ceramic substrate. Current heating substrates generally use a single heating wire, heating mesh, or other heating structure. On the one hand, due to the limited heating power of a single heating substrate, the atomization efficiency of the atomizer core is limited, making it difficult to meet the demand for large smoke volumes. On the other hand, when a single heating substrate is working for a long time, its surface is prone to carbon deposits (when a single heating substrate is working at high heating power, its operating temperature is very high, which is more prone to carbon deposits), thereby affecting the atomized taste. Utility Model Content
[0004] The purpose of the utility model is to provide an atomizer core, whose heating element has higher heating power, so that the atomizer core has higher atomization efficiency, and can reduce the carbon deposits on the heating part, ensure the atomization taste, and extend the service life of the atomizer core.
[0005] The utility model provides an atomizing core, comprising a porous substrate and a heating element arranged on the surface of the porous substrate, wherein the heating element comprises a first collecting portion, a second collecting portion and at least two heating portions, wherein the first collecting portion and the second collecting portion are arranged in an alternating manner, and at least two heating portions are located between the first collecting portion and the second collecting portion, and at least two heating portions are arranged in an alternating manner; one end of each heating portion is connected to the first collecting portion, and the other end of each heating portion is connected to the second collecting portion.
[0006] In one feasible manner, the porous matrix has a first direction and a second direction perpendicular to each other, the first collecting portion and the second collecting portion are both extended along the second direction, and the first collecting portion and the second collecting portion are arranged at intervals along the first direction; each of the heat-generating portions is extended along the first direction, and at least two of the heat-generating portions are arranged at intervals along the second direction.
[0007] In one feasible embodiment, the porous matrix is a rectangular structure, the first direction is the length direction of the porous matrix, and the second direction is the width direction of the porous matrix; or, the first direction is the width direction of the porous matrix, and the second direction is the length direction of the porous matrix.
[0008] In one achievable manner, the resistance values of all the heating parts are the same; or, the resistance values of at least two of the heating parts are different.
[0009] In one feasible manner, the heating element is arranged on the bottom surface of the porous matrix, and a liquid storage tank is provided on the top surface of the porous matrix at a position corresponding to each heating portion, and the liquid storage tanks are spaced apart from each other.
[0010] In one feasible manner, at least two of the heating parts have different resistance values; among the two heating parts with different resistance values, the volume of the liquid storage tank corresponding to the heating part with a smaller resistance value is larger than the volume of the liquid storage tank corresponding to the heating part with a larger resistance value.
[0011] In one achievable manner, in a direction from the slot opening of the liquid storage tank to the bottom of the liquid storage tank, the cross-section of the liquid storage tank is an inverted trapezoidal structure with a gradually decreasing width.
[0012] In one achievable manner, the porous matrix is a rectangular parallelepiped structure, and the first current collecting portion and the second current collecting portion are respectively arranged at opposite ends of the porous matrix;
[0013] The first collecting portion and the second collecting portion are both completely located on the bottom surface of the porous matrix; or, a portion of the first collecting portion is located on the bottom surface of the porous matrix, and another portion of the first collecting portion is bent and located on the side wall of the porous matrix, and a portion of the second collecting portion is located on the bottom surface of the porous matrix, and another portion of the second collecting portion is bent and located on the side wall of the porous matrix.
[0014] In one achievable manner, all of the heating parts are heating nets or heating wires; or, at least some of the heating parts are heating nets, and another part of the heating parts are heating wires.
[0015] The utility model also provides an electronic atomizer, comprising the above-mentioned atomizing core.
[0016] The atomizer core provided by the present invention has a heating element with at least two parallel-connected heating parts. On the one hand, the at least two heating parts can work simultaneously, so that the heating element has a higher heating power, thereby making the atomizer core have a higher atomization efficiency and meeting the use requirements of large smoke volume. On the other hand, because the at least two heating parts can share the heating work, the heating power of each heating part does not need to be set too high, thereby reducing the formation of carbon deposits on the heating part, ensuring the atomization taste and extending the service life of the atomizer core. At the same time, at least two heating parts share the same first and second collecting parts, which not only facilitates circuit connection and circuit control, but also reduces the installation area of the collecting parts, which is conducive to increasing the installation area and coverage area of the heating parts, thereby improving the atomization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the three-dimensional structure of the atomizer core in the embodiment of the present utility model.
[0018] Figure 2 for Figure 1 Top view of .
[0019] Figure 3 for Figure 1 Bottom view of .
[0020] Figure 4 for Figure 1 Schematic cross-section of .
[0021] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the heating element.
[0022] Figure 6 This is a bottom view of the atomizer core in another embodiment of the present invention.
[0023] Figure 7 Schematic cross-section of an atomizer core in another embodiment of the present invention. DETAILED DESCRIPTION
[0024] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] The terms "first", "second", "third", "fourth" and so on (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0026] The directional terms "up," "down," "left," "right," "front," "back," "top," and "bottom" (if any) used in the specification and claims of this utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are intended only for clarity and convenience in expressing the technical solution. It should be understood that the use of directional terms should not limit the scope of protection claimed in this utility model.
[0027] like Figures 1 to 5 As shown, the atomizer core provided by the embodiment of the present invention is used in an electronic atomizer. The atomizer core includes a porous matrix 1 and a heating element 2 arranged on the surface of the porous matrix 1. The porous matrix 1 is a porous structure (that is, a plurality of micropores are provided in the porous matrix 1); the porous matrix 1 can be specifically porous ceramics or porous glass, etc. The heating element 2 includes a first collecting portion 21, a second collecting portion 22 and at least two heating portions 23. The heating portion 23 is used to generate heat after power is turned on to heat and atomize the atomized liquid (such as tobacco oil). The first collecting portion 21 and the second collecting portion 22 are arranged at intervals, and at least two heating portions 23 are located between the first collecting portion 21 and the second collecting portion 22, and at least two heating portions 23 are arranged at intervals.
[0028] At least two heating parts 23 are connected in parallel, with one end of each heating part 23 connected to the first current collecting part 21, and the other end of each heating part 23 connected to the second current collecting part 22. One of the first current collecting part 21 and the second current collecting part 22 is used to connect to one of the positive and negative poles of the power supply (for example, the positive pole), and the other of the first current collecting part 21 and the second current collecting part 22 is used to connect to the other of the positive and negative poles of the power supply (for example, the negative pole), thereby achieving parallel connection of the heating parts 23. When the number of heating parts 23 connected in parallel is greater, the total heating power of the heating element 2 is also greater, and the atomization amount of the atomizer core is also greater.
[0029] The atomizer core provided by the present invention has a heating element 2 provided with at least two heating parts 23 connected in parallel. On the one hand, the at least two heating parts 23 can work simultaneously, so that the heating element 2 has a higher heating power, thereby making the atomizer core have a higher atomization efficiency and can meet the use requirements of large vapor volume. On the other hand, because the at least two heating parts 23 can share the heating work, the heating power of each heating part 23 does not need to be set too large (if only one heating part 23 is provided, the heating power of the heating part 23 needs to be higher and its operating temperature is higher; and when there are multiple heating parts 23, the heating power of each heating part 23 can be appropriately reduced and the operating temperature of each heating part 23 can be appropriately lowered under the condition that the total heating power of the multiple heating parts 23 remains unchanged or is appropriately increased). Therefore, the generation of carbon deposits on the heating part 23 can be reduced, the atomization taste is guaranteed, and the service life of the atomizer core is extended. At the same time, at least two heating parts 23 share the same first collecting part 21 and the second collecting part 22, which not only facilitates circuit connection and circuit control, but also reduces the setting area of the collecting part, which is conducive to increasing the setting area and coverage area of the heating part 23, thereby improving the atomization efficiency.
[0030] like Figure 1 and Figure 3 As shown, as an embodiment, the porous matrix 1 has a first direction X and a second direction Y that are perpendicular to each other, the first collecting portion 21 and the second collecting portion 22 are both long strip-shaped sheet structures, the first collecting portion 21 and the second collecting portion 22 are both extended along the second direction Y, and the first collecting portion 21 and the second collecting portion 22 are arranged at intervals along the first direction X. Each heating portion 23 is extended along the first direction X, and at least two heating portions 23 are arranged at intervals along the second direction Y. Of course, in other embodiments, the first direction X and the second direction Y may not be perpendicular, for example, the first direction X and the second direction Y may form a certain angle between them, and the angle is greater than or equal to 60° and less than 90°.
[0031] like Figures 1 to 3 As shown in FIG. 1 , as an embodiment, the porous substrate 1 is a rectangular block structure, the first direction X is the length direction of the porous substrate 1, and the second direction Y is the width direction of the porous substrate 1. Of course, in other embodiments, the first direction X may also be the width direction of the porous substrate 1, and the second direction Y may also be the length direction of the porous substrate 1.
[0032] like Figure 1 and Figure 3As shown, as an embodiment, all heating elements 23 have the same resistance value, that is, the heating power of each heating element 23 is the same. In this embodiment, there are two heating elements 23 (in other embodiments, the number of heating elements 23 can also be more, such as three or four), and the two heating elements 23 have the same resistance value. As an embodiment, the resistance value of each heating element 23 is 1.0 ohm to 1.3 ohm.
[0033] As another embodiment, at least two heating parts 23 have different resistance values, so that they have different heating powers (because the heating parts 23 are connected in parallel, according to the formula P=U 2 / R, the greater the resistance, the smaller the heating power), corresponding to different atomization amounts and different atomization effects. For example, there are two heating parts 23, and the resistance values of the two heating parts 23 are different. For another example, there are three or more heating parts 23, and the resistance value of the heating part 23 in the middle position is smaller than the resistance values of the two heating parts 23 on the outermost sides (i.e., the heating power of the heating part 23 in the middle position is greater, allowing heat to be quickly transferred from the middle to the two sides).
[0034] As an embodiment, for two heating portions 23 having different resistance values, the difference in resistance between the two heating portions 23 is 20% to 30% of the resistance of the heating portion 23 with the smaller resistance value. For example, if the resistance of the heating portion 23 with the smaller resistance value is 1 ohm, the resistance of the heating portion 23 with the larger resistance value is 1.2 ohms to 1.3 ohms.
[0035] like Figures 1 to 4 As shown, as an embodiment, the heating element 2 is arranged on the bottom surface of the porous matrix 1, and a liquid storage tank 11 for temporarily storing the atomized liquid is provided on the top surface of the porous matrix 1 corresponding to each heating part 23 (that is, a plurality of liquid storage tanks 11 are provided on the top surface of the porous matrix 1, and the plurality of liquid storage tanks 11 correspond one by one to the plurality of heating parts 23 respectively). The liquid storage tanks 11 are arranged at intervals from each other, so that each heating part 23 can heat and atomize the atomized liquid in the corresponding liquid storage tank 11 respectively.
[0036] like Figure 4 As shown in FIG. 1 , as an embodiment, the cross-section of the liquid reservoir 11 is an inverted trapezoidal structure with a gradually decreasing width, from the notch 111 of the liquid reservoir 11 toward the bottom 112 of the liquid reservoir 11 (i.e., from top to bottom). This configuration, on the one hand, helps increase the volume of the liquid reservoir 11, and on the other hand, allows the atomized liquid to flow more smoothly downward along the inner wall of the liquid reservoir 11, reducing the adhesion of the atomized liquid to the inner wall of the liquid reservoir 11.
[0037] As an embodiment, the resistance values of all the heating parts 23 are the same, and the volumes of all the liquid storage tanks 11 are the same.
[0038] As another embodiment, at least some of the heating parts 23 have different resistance values; among two heating parts 23 with different resistance values, the volume of the liquid storage tank 11 corresponding to the heating part 23 with a smaller resistance value is larger than the volume of the liquid storage tank 11 corresponding to the heating part 23 with a larger resistance value.
[0039] Specifically, because the heating power of the heating portion 23 with a low resistance value is greater than the heating power of the heating portion 23 with a high resistance value, by setting the volume of the liquid reservoir 11 corresponding to the heating portion 23 with a low resistance value to be larger, the liquid storage capacity of the liquid reservoir 11 is matched to the power of the heating portion 23, thereby meeting the oil supply requirements of heating portions 23 with different power (the greater the heating power of the heating portion 23, the faster it consumes the e-liquid, and the greater the oil supply requirement). In order to adjust the volume of the liquid reservoir 11, the volume of the liquid reservoir 11 can be controlled by changing the cross-sectional area, depth, and other dimensions of the liquid reservoir 11.
[0040] As an embodiment, in two liquid storage tanks 11 with different volumes, the difference between the volumes of the two liquid storage tanks 11 is 20% to 30% of the volume of the larger liquid storage tank 11. For example, if the volume of the larger liquid storage tank 11 is 1 mL, the volume of the smaller liquid storage tank 11 is 0.7 mL to 0.8 mL.
[0041] like Figure 3 As shown in FIG. 1 , as an embodiment, all the heating parts 23 have the same structure; specifically, all the heating parts 23 are heating nets. Of course, in other embodiments, all the heating parts 23 can also be heating wires.
[0042] like Figure 6 As shown, as another embodiment, at least some of the heating parts 23 have different structures; for example, at least some of the heating parts 23 are heating meshes, while others are heating wires. When the heating parts 23 need to have different resistance values, the structures of the heating parts 23 can be different; or the structures of the heating parts 23 can be the same, but the materials, thickness, etc. of the heating parts 23 can be different to achieve different resistance values.
[0043] like Figure 3 and Figure 4 As shown, as an embodiment, the first collecting portion 21 and the second collecting portion 22 are respectively arranged at opposite ends of the porous matrix 1 along the first direction X, and the first collecting portion 21 and the second collecting portion 22 are both completely located on the bottom surface of the porous matrix 1.
[0044] like Figure 7As shown, as another embodiment, the first collecting portion 21 and the second collecting portion 22 are respectively arranged at the opposite ends of the porous matrix 1 along the first direction X, and a portion of the first collecting portion 21 is located on the bottom surface of the porous matrix 1, and another portion of the first collecting portion 21 is located on the side wall of the porous matrix 1 after being bent; a portion of the second collecting portion 22 is located on the bottom surface of the porous matrix 1, and another portion of the second collecting portion 22 is located on the side wall of the porous matrix 1 after being bent. Such a configuration can not only reduce the space occupied by the first collecting portion 21 and the second collecting portion 22 on the bottom surface of the porous matrix 1, increase the setting area and coverage area of the heating portion 23, and thus improve the atomization efficiency, but also increase the contact area between the first collecting portion 21 and the second collecting portion 22 and the porous matrix 1. At the same time, the first collecting portion 21 and the second collecting portion 22 form a structure that clamps the porous matrix 1 from both sides, thereby improving the tightness of the combination between the heating element 2 and the porous matrix 1, and the heating element 2 can play a certain supporting and reinforcing role on the porous matrix 1, reducing or avoiding damage to the porous matrix 1, so that the atomization core has a higher structural strength and extends its service life.
[0045] like Figure 1 and Figure 5 As shown, as an embodiment, a plurality of hooks 24 are provided on the heating element 2 (specifically, hooks 24 are provided on the first collecting portion 21, the second collecting portion 22 and the heating portion 23), and the hooks 24 are embedded in the porous matrix 1 to improve the bonding tightness between the heating element 2 and the porous matrix 1.
[0046] like Figures 1 to 5 As shown, as an embodiment, the atomizer core further includes two electrode rods 3, which are respectively connected to the first collecting part 21 and the second collecting part 22, and the two electrode rods 3 are respectively used to connect to the positive and negative poles of the power supply.
[0047] As an embodiment, the heating element 2 can be made of metal materials such as stainless steel (such as 310 stainless steel, 316 stainless steel, etc.), titanium, chromium, nickel-chromium, iron-chromium-aluminum, etc.
[0048] As an embodiment, the porous substrate 1 is a porous ceramic body; the porosity of the porous substrate 1 is 55% to 65%, and the median pore diameter of the porous substrate 1 is 25 microns to 40 microns.
[0049] As an embodiment, the porous substrate 1 is composed of a framework material and a high-temperature sintering aid. The framework material is one or more of diatomaceous earth, cordierite, silica powder, quartz powder, and kaolin. The high-temperature sintering aid is glass powder (e.g., SiO2-B2O3-ZnO glass powder with a Tg temperature of 450°C-550°C). The weight percentages of the components are: 45-70% for the framework material and 30-55% for the high-temperature sintering aid.
[0050] As an embodiment, the porous matrix 1 is formed by dewaxing and sintering a ceramic green body; the components of the ceramic green body include a skeleton material, a high-temperature sintering aid, a pore-forming agent, paraffin wax, and stearic acid. The skeleton material is one or more of diatomaceous earth, cordierite, silica powder, quartz powder, and kaolin; the high-temperature sintering aid is glass powder (for example, SiO2-B2O3-ZnO glass powder with a Tg temperature of 450°C-550°C); and the pore-forming agent is one or more of PMMA, PS balls, starch, lignin, graphite, and carbon powder. The weight percentages of the components are as follows: skeleton material is 30-60%, high-temperature sintering aid is 10%-50%, pore-forming agent is 30%-50%, paraffin wax is 10%-20%, and stearic acid is 2%-10%, with the sum of the weight percentages of the components being 100%.
[0051] As an embodiment, the preparation method of the atomizer core is:
[0052] S10: Mixing and ball-milling a certain amount of framework material, high-temperature sintering aid, and pore-forming agent (specifically, the framework material, high-temperature sintering aid, and pore-forming agent can be placed in the same container, and then zirconium balls are added for mixed ball-milling) to obtain a mixed powder; the mixing and ball-milling time can be 3-8 hours;
[0053] S20: mixing the mixed powder with a certain amount of paraffin wax and stearic acid to obtain a ceramic slurry; the mixing temperature is 60° C. to 120° C., and the mixing time is 2 to 8 hours;
[0054] S30: placing the heating element 2 in a slip casting machine in advance, then injecting the ceramic slurry into the slip casting machine, and obtaining a ceramic green body by hot pressing;
[0055] S40: The ceramic green body is dewaxed and sintered at a preset temperature, and an atomizing core is obtained after cooling.
[0056] As an embodiment, the above-mentioned S30 step specifically includes: placing the heating element 2 in a grouting machine in advance, and then injecting the above-mentioned ceramic slurry into the grouting machine; setting the insulation temperature of the grouting machine to 55°C-80°C, stirring and degassing for 30-60 minutes; under a preset pressure, hot-pressing the ceramic slurry into a mold, wherein the preset pressure range can specifically be 0.3-0.8Mpa.
[0057] As an embodiment, in the above step S40, the wax is drained by siphoning, the drain temperature is 180°C-280°C, and the drain time is 1-6 hours; preferably, the drain temperature is 200°C-250°C, and the drain time is 2-4 hours. The sintering temperature is 500°C-800°C, and the sintering time is 2-8 hours; preferably, the sintering temperature is 600°C-750°C, and the sintering time is 3-5 hours.
[0058] This embodiment also provides an electronic atomizer, including the above-mentioned atomizing core.
[0059] The atomizer core provided in this embodiment has a heating element 2 provided with at least two parallel-connected heating sections 23. On the one hand, the at least two heating sections 23 can operate simultaneously, resulting in a higher heating power for the heating element 2, thereby increasing the atomization efficiency of the atomizer core and meeting the requirements for high vapor volume. On the other hand, since the at least two heating sections 23 can mutually share the heating work, the heating power of each heating section 23 does not need to be set too high, thereby reducing the formation of carbon deposits on the heating section 23, ensuring a good atomization taste and extending the service life of the atomizer core. Furthermore, the at least two heating sections 23 share the same first manifold 21 and second manifold 22, which not only facilitates circuit connection and circuit control, but also reduces the installation area of the manifold, which is conducive to increasing the installation area and coverage area of the heating section 23, thereby improving atomization efficiency.
[0060] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. An atomizer core, characterized in that: The invention comprises a porous substrate (1) and a heating element (2) arranged on the surface of the porous substrate (1); the heating element (2) comprises a first current collecting portion (21), a second current collecting portion (22) and at least two heating portions (23); the first current collecting portion (21) and the second current collecting portion (22) are arranged in an alternating manner; at least two heating portions (23) are located between the first current collecting portion (21) and the second current collecting portion (22); and at least two heating portions (23) are arranged in an alternating manner; one end of each heating portion (23) is connected to the first current collecting portion (21), and the other end of each heating portion (23) is connected to the second current collecting portion (22).
2. The atomizer core according to claim 1, characterized in that: The porous matrix (1) has a first direction (X) and a second direction (Y) which are perpendicular to each other; the first current collecting portion (21) and the second current collecting portion (22) are both extended along the second direction (Y), and the first current collecting portion (21) and the second current collecting portion (22) are arranged at intervals along the first direction (X); each of the heat generating portions (23) is extended along the first direction (X), and at least two of the heat generating portions (23) are arranged at intervals along the second direction (Y).
3. The atomizer core according to claim 2, characterized in that: The porous matrix (1) is a rectangular parallelepiped structure, the first direction (X) is the length direction of the porous matrix (1), and the second direction (Y) is the width direction of the porous matrix (1); or, the first direction (X) is the width direction of the porous matrix (1), and the second direction (Y) is the length direction of the porous matrix (1).
4. The atomizer core according to claim 1, characterized in that: The resistance values of all the heating parts (23) are the same; or, the resistance values of at least two of the heating parts (23) are different.
5. The atomizer core according to claim 1, characterized in that: The heating element (2) is arranged on the bottom surface of the porous matrix (1), and a liquid storage tank (11) is provided on the top surface of the porous matrix (1) at a position corresponding to each heating portion (23), and the liquid storage tanks (11) are arranged at intervals from each other.
6. The atomizer core according to claim 5, characterized in that: At least two of the heating parts (23) have different resistance values; among the two heating parts (23) having different resistance values, the volume of the liquid storage tank (11) corresponding to the heating part (23) with a smaller resistance value is greater than the volume of the liquid storage tank (11) corresponding to the heating part (23) with a larger resistance value.
7. The atomizer core according to claim 5, characterized in that: In the direction from the notch (111) of the liquid storage tank (11) to the bottom (112) of the liquid storage tank (11), the cross section of the liquid storage tank (11) is an inverted trapezoidal structure with a gradually decreasing width.
8. The atomizer core according to claim 5, characterized in that: The porous matrix (1) is a rectangular parallelepiped structure, and the first current collecting portion (21) and the second current collecting portion (22) are respectively arranged at two opposite ends of the porous matrix (1); The first current collecting portion (21) and the second current collecting portion (22) are both completely located on the bottom surface of the porous substrate (1); or, a portion of the first current collecting portion (21) is located on the bottom surface of the porous substrate (1), and another portion of the first current collecting portion (21) is bent and located on the side wall of the porous substrate (1), and a portion of the second current collecting portion (22) is located on the bottom surface of the porous substrate (1), and another portion of the second current collecting portion (22) is bent and located on the side wall of the porous substrate (1).
9. The atomizer core according to any one of claims 1 to 8, characterized in that: All of the heating parts (23) are heating nets or heating wires; or, at least some of the heating parts (23) are heating nets, and another part of the heating parts (23) are heating wires.
10. An electronic atomizer, characterized in that: The invention comprises an atomizing core as claimed in any one of claims 1 to 9.