Atomizing core and electronic atomizer
By designing a multi-parallel connected heating section and an atomization core with an ordered arrangement of structures, the problems of fixing atomization amount and carbon deposits in existing electronic atomizers are solved, and flexible adjustment of atomization amount and extension of service life are achieved.
Patent Information
- Application Number
- CN202420673061.3
- 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
The atomization amount of existing electronic atomizers is fixed and cannot be adjusted according to user needs. The long-term use leads to the production of carbon volume of heating substrate, affecting the taste and service life.
Atomizing core is designed, and its heating body includes a plurality of heat generating parts connected in parallel. By controlling the number of circuits connected to the heating part, the atomization amount is freely switched, and through an orderly arrangement structure, the same heating part is avoided from working for a long time, thereby reducing carbon accumulation.
It realizes flexible adjustment of the atomization amount, avoids the generation of carbon deposits, ensures the atomization taste, and extends the service life of the atomization core.
Smart Images
Figure CN222622217U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic atomizers, in particular to an atomization core and an electronic atomizer. Background Art
[0002] Electronic atomizers are also known as virtual cigarettes, steam cigarettes, electronic cigarettes, aerosol generating devices, etc. They are mainly used to simulate the feeling of smoking without affecting health, so as to help people quit smoking or replace cigarettes. The atomizer core is one of the important components of the electronic atomizer, which is used to heat the atomized oil to generate smoke for users to inhale.
[0003] The atomizer core generally includes a porous ceramic substrate and a heating substrate arranged on the porous ceramic substrate. The heating substrate heats the porous ceramic substrate by direct contact, so that the tobacco oil in the porous ceramic substrate is heated and atomized. The current heating substrate generally adopts a single heating structure such as a heating wire or a heating net. Since the resistance value of the heating substrate is fixed, the heating power of the heating substrate is fixed under the rated voltage, so the atomization amount of the atomizer core is generally fixed; when the user needs to change the amount of atomization, the electronic atomizer cannot meet the demand. At the same time, when a single heating substrate works for a long time, carbon deposits are easy to form on its surface, which affects the atomization taste. Utility Model Content
[0004] The purpose of the utility model is to provide an atomizer core, which can freely switch the atomization amount of the atomizer core by controlling the number of heating parts connected to the circuit, and at the same time can avoid the same heating part from working for a long time, reduce carbon deposits, 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 total collecting portion and two heating groups respectively arranged on opposite sides of the total collecting portion, each of the heating groups comprises at least two heating portions arranged at intervals; one end of each of the heating portions is connected to the total collecting portion, and the other end of each of the heating portions is provided with a sub-collecting portion.
[0006] In one feasible manner, the porous matrix has a first direction and a second direction perpendicular to each other, and the two heating groups are respectively arranged on opposite sides of the total collecting portion along the first direction; the total collecting portion extends along the second direction, and the total collecting portion is arranged in the middle position of the porous matrix along the first direction; each heating portion extends along the first direction, and at least two heating portions in each heating group are arranged at intervals along the second direction.
[0007] In one achievable manner, the total collecting section includes an intermediate collecting section and a first collecting section and a second collecting section connected to the intermediate collecting section, the first collecting section and the second collecting section both extend along the second direction, and the first collecting section and the second collecting section are respectively arranged on opposite sides of the intermediate collecting section along the second direction; a part of the heating sections in each of the heating groups is connected to the first collecting section, and another part of the heating sections in each of the heating groups is connected to the second collecting section.
[0008] In one feasible manner, 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.
[0009] In one achievable manner, the heating element is disposed 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 some 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 notch 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 sub-collectors in the two heating groups are respectively arranged at opposite ends of the porous matrix;
[0013] The sub-collecting portion is completely located on the bottom surface of the porous matrix; or, a portion of the sub-collecting portion is located on the bottom surface of the porous matrix, and another portion of the sub-collecting portion is bent and located on the side wall of the porous matrix.
[0014] In a feasible 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 atomization core.
[0016] The atomizer core provided by the utility model has a heating element with multiple heating parts connected in parallel, and the multiple heating parts can work separately or simultaneously. By controlling the number of heating parts connected to the circuit, the atomization amount of the atomizer core can be freely switched, and the same heating part can be prevented from working for a long time, reducing the generation of carbon deposits, ensuring the atomization taste, and extending the service life of the atomizer core. At the same time, the heating element adopts an orderly arrangement structure, and the two heating groups are respectively arranged on the opposite sides of the total current collecting part, so that each heating part can share the same total current collecting part, which can not only facilitate circuit connection and circuit control, but also greatly reduce the setting area of the current collecting part, which is conducive to increasing the setting area and coverage area of the heating part, thereby improving the atomization area and heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the atomizer core in the embodiment of the utility model.
[0018] Figure 2 for Figure 1 Top view of the .
[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 It is a bottom view of the atomizer core in another embodiment of the utility model.
[0023] Figure 7 It is a cross-sectional schematic diagram of an atomizer core in another embodiment of the utility model. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples 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 the like (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 words such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the 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 only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection claimed by the utility model.
[0027] like Figures 1 to 5 As shown, the atomizer core provided by the embodiment of the utility model is used in an electronic atomizer. The atomizer core includes a porous substrate 1 and a heating element 2 arranged on the surface of the porous substrate 1. The porous substrate 1 is a porous structure (that is, a plurality of micropores are provided in the porous substrate 1); the porous substrate 1 can be specifically porous ceramic or porous glass, etc. The heating element 2 includes a total collecting portion 21 and two heating groups 22 respectively arranged on opposite sides of the total collecting portion 21. Each heating group 22 includes at least two heating portions 221 arranged at intervals, that is, at least four heating portions 221 are provided in the heating element 2. The heating portion 221 is used to generate heat after power is turned on to heat and atomize the atomized liquid (such as tobacco oil).
[0028] Each heating part 221 is connected in parallel, one end of each heating part 221 is connected to the total current collecting part 21, and the other end of each heating part 221 is provided with a sub-current collecting part 222. Among them, the total current collecting part 21 is used to connect to one of the positive and negative poles of the power supply (for example, the positive pole), and each sub-current collecting part 222 is used to connect to the other of the positive and negative poles of the power supply (for example, the negative pole), so as to realize the parallel connection of each heating part 221. The number of heating parts 221 connected to the circuit (that is, the number of heating parts 221 in working state) is different, the total heating power of the heating element 2 is different, the atomization amount of the atomization core is also different, and the taste experience is also different; the more the number of heating parts 221 connected to the circuit, the greater the total heating power of the heating element 2, the greater the atomization amount of the atomization core, and the greater the use demand of large smoke volume.
[0029] The atomizer core provided by the utility model has a heating element 2 which is provided with a plurality of heating parts 221 connected in parallel. The plurality of heating parts 221 can work separately or simultaneously. By controlling the number of heating parts 221 connected to the circuit, the atomization amount of the atomizer core can be freely switched, and the same heating part 221 can be prevented from working for a long time, so as to reduce the generation of carbon deposits, ensure the atomization taste, and extend the service life of the atomizer core. Moreover, since the heating element 2 has at least four heating parts 221, the atomizer core has a variety of different atomization modes. At the same time, the heating element 2 adopts an orderly arrangement structure, and the two heating groups 22 are respectively arranged on the opposite sides of the total collector 21, so that each heating part 221 can share the same total collector 21, which can not only facilitate circuit connection and circuit control, but also greatly reduce the setting area of the collector, which is conducive to increasing the setting area and coverage area of the heating part 221, thereby improving the atomization area and heating efficiency.
[0030] like Figures 1 to 3 As shown, as an implementation manner, the number of the heating parts 221 in the two heating groups 22 is the same. Of course, in other embodiments, the number of the heating parts 221 in the two heating groups 22 may also be different.
[0031] like Figures 1 to 3 As shown, as an implementation, each heating group 22 is provided with two heating parts 221, and the total number of heating parts 221 is four. Of course, in other embodiments, each heating group 22 can also be provided with more heating parts 221, and the total number of heating parts can also be more.
[0032] like Figures 1 to 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, and the two heating groups 22 are respectively arranged on opposite sides of the total collecting portion 21 along the first direction X. The total collecting portion 21 is a long sheet structure, the total collecting portion 21 extends along the second direction Y, and the total collecting portion 21 is arranged in the middle position of the porous matrix 1 along the first direction X. Each heating portion 221 extends along the first direction X, and at least two heating portions 221 in each heating group 22 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, there is a certain angle between the first direction X and the second direction Y, and the angle is greater than or equal to 60° and less than 90°.
[0033] like Figures 1 to 3 As shown, as an embodiment, the total current collecting section 21 includes an intermediate current collecting section 211 and a first current collecting section 212 and a second current collecting section 213 connected to the intermediate current collecting section 211, the first current collecting section 212 and the second current collecting section 213 both extend along the second direction Y, and the first current collecting section 212 and the second current collecting section 213 are respectively arranged on opposite sides of the intermediate current collecting section 211 along the second direction Y; the intermediate current collecting section 211 is used to be connected to a power source. A portion of the heating sections 221 in each heating group 22 is connected to the first current collecting section 212, and another portion of the heating sections 221 in each heating group 22 is connected to the second current collecting section 213. In this embodiment, each heating group 22 is provided with two heating sections 221, one heating section 221 in each heating group 22 is connected to the first current collecting section 212, and another heating section 221 in each heating group 22 is connected to the second current collecting section 213.
[0034] like Figures 1 to 3 As shown, as an embodiment, the width of the first current collecting part 212 is equal to the width of the second current collecting part 213, and the width of the middle current collecting part 211 is greater than the width of the first current collecting part 212 and the width of the second current collecting part 213, thereby facilitating the electrical connection between the middle current collecting part 211 and the power supply.
[0035] like Figures 1 to 3 As shown, as an implementation mode, along the first direction X, two heating groups 22 are symmetrically arranged about the main collecting part 21.
[0036] like Figures 1 to 3 As shown in the figure, as an embodiment, the porous matrix 1 is a rectangular block 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. Of course, in other embodiments, the first direction X can also be the width direction of the porous matrix 1, and the second direction Y can also be the length direction of the porous matrix 1.
[0037] like Figures 1 to 5 As shown, as an embodiment, the sub-collecting portions 222 in the two heating groups 22 are respectively arranged at opposite ends of the porous matrix 1 along the first direction X, and the sub-collecting portions 222 are sheet structures, and the sub-collecting portions 222 are completely located on the bottom surface of the porous matrix 1.
[0038] like Figure 7 As shown, as another embodiment, the sub-collecting parts 222 in the two heating groups 22 are respectively arranged at the opposite ends of the porous substrate 1 along the first direction X, a part of each sub-collecting part 222 is located on the bottom surface of the porous substrate 1, and the other part of each sub-collecting part 222 is bent and located on the side wall of the porous substrate 1. Such an arrangement can not only reduce the space occupied by the sub-collecting part 222 on the bottom surface of the porous substrate 1, increase the setting area and coverage area of the heating part 221, and thus improve the atomization area and heating efficiency, but also increase the contact area between the sub-collecting part 222 and the porous substrate 1. At the same time, the sub-collecting parts 222 in the two heating groups 22 form a structure that clamps the porous substrate 1 from both sides, thereby improving the tightness of the combination between the heating element 2 and the porous substrate 1, and the heating element 2 can play a certain supporting and strengthening role on the porous substrate 1, reduce or avoid damage to the porous substrate 1, so that the atomization core has a higher structural strength and prolongs its service life.
[0039] As an implementation mode, the resistance values of all the heating parts 221 are the same.
[0040] As another embodiment, at least some of the heating parts 221 have different resistance values. Specifically, in each heating group 22, at least some of the heating parts 221 have different resistance values (for example, when the heating group 22 is provided with two heating parts 221, the resistance values of the two heating parts 221 are different. For another example, when the heating group 22 is provided with three heating parts 221, the resistance values of the two heating parts 221 located on the outermost sides are the same, and the resistance value of the heating part 221 located in the middle position is different from the resistance value of the two heating parts 221 located on the outermost sides); and / or, in two heating groups 22, at least some of the heating parts 221 of one heating group 22 have different resistance values from at least some of the heating parts 221 of the other heating group 22. When the resistance values of the heating parts 221 are different, they have different heating powers (since the heating parts 221 are connected in parallel, according to the formula P=U 2 / R, the larger the resistance, the smaller the heating power), the corresponding atomization amount is different, and the atomization effect is also different.
[0041] As an embodiment, in two heating parts 221 with different resistance values, the difference between the resistance values of the two heating parts 221 is 20% to 30% of the resistance value of the heating part 221 with a smaller resistance value. For example, if the resistance value of the heating part 221 with a smaller resistance value is 1 ohm, the resistance value of the heating part 221 with a larger resistance value is 1.2 ohms to 1.3 ohms.
[0042] like Figures 1 to 4 As shown, as an embodiment, the heating element 2 is arranged on the bottom surface of the porous substrate 1, and a liquid storage tank 11 for temporarily storing atomized liquid is provided on the top surface of the porous substrate 1 at a position corresponding to each heating portion 221 (that is, a plurality of liquid storage tanks 11 are provided on the top surface of the porous substrate 1, and the plurality of liquid storage tanks 11 correspond one by one to the plurality of heating portions 221 respectively), and the liquid storage tanks 11 are arranged at intervals from each other, so that each heating portion 221 can heat and atomize the atomized liquid in the corresponding liquid storage tank 11 respectively.
[0043] like Figure 4 As shown, as an embodiment, in the direction from the notch 111 of the liquid storage tank 11 to the bottom 112 of the liquid storage tank 11 (i.e., from top to bottom), the cross section of the liquid storage tank 11 is an inverted trapezoidal structure with a gradually decreasing width. Such a configuration is conducive to increasing the volume of the liquid storage tank 11 on the one hand, and on the other hand, it can make the atomized liquid flow downward along the inner wall of the liquid storage tank 11 more smoothly, reducing the adhesion of the atomized liquid on the inner wall of the liquid storage tank 11.
[0044] like Figures 1 to 4 As shown, as an implementation mode, the resistance values of all the heating parts 221 are the same, and the volumes of all the liquid storage tanks 11 are the same.
[0045] As another embodiment, at least some of the heating parts 221 have different resistance values; among two heating parts 221 with different resistance values, the volume of the liquid storage tank 11 corresponding to the heating part 221 with a smaller resistance value is larger than the volume of the liquid storage tank 11 corresponding to the heating part 221 with a larger resistance value.
[0046] Specifically, since the heating power of the heating part 221 with a small resistance value is greater than the heating power of the heating part 221 with a large resistance value, the volume of the liquid storage tank 11 corresponding to the heating part 221 with a small resistance value is set larger, so that the liquid storage capacity of the liquid storage tank 11 matches the power of the heating part 221, thereby meeting the oil supply requirements of the heating parts 221 with different powers (the greater the heating power of the heating part 221, the faster the rate at which it consumes the tobacco oil, and the greater the oil supply requirements). In order to make the volume of the liquid storage tank 11 different, the volume of the liquid storage tank 11 can be adjusted by changing the cross-sectional area, depth and other dimensions of the liquid storage tank 11.
[0047] 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.
[0048] like Figure 3 As shown, as an implementation mode, all the heating parts 221 have the same structure, and all the heating parts 221 are heating nets. Of course, in other embodiments, all the heating parts 221 can also be heating wires.
[0049] like Figure 6 As shown, as another embodiment, among all the heating parts 221, at least some of the heating parts 221 have different structures; at least some of the heating parts 221 are heating nets, and other parts of the heating parts 221 are heating wires. For example, in two heating groups 22, the heating parts 221 of one heating group 22 are all heating nets, and the heating parts 221 of the other heating group 22 are all heating wires. For another example, in each heating group 22, some of the heating parts 221 are heating nets, and other parts of the heating parts 221 are heating wires. When the heating parts 221 are required to have different resistance values, the structures of the heating parts 221 can be set to be different; or the structures of the heating parts 221 can be set to be the same, but the materials, thicknesses, etc. of the heating parts 221 are different, so that they have different resistance values.
[0050] like Figure 1 and Figure 5As shown, as an embodiment, a plurality of hooks 23 are provided on the heating element 2 (specifically, hooks 23 are provided on the total collecting portion 21, the sub-collecting portion 222 and the heating portion 221), and the hooks 23 are embedded in the porous matrix 1 to improve the bonding tightness between the heating element 2 and the porous matrix 1.
[0051] As an implementation manner, 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.
[0052] As an implementation mode, the porous substrate 1 is a porous ceramic body; the porosity of the porous substrate 1 is 55% to 65%, and the median pore size of the porous substrate 1 is 25 micrometers to 40 micrometers.
[0053] As an embodiment, the components of the porous matrix 1 include a skeleton material, a high-temperature sintering aid and a nano-toughening material. The skeleton material is one or more of diatomite, cordierite, silicon powder, quartz powder, kaolin, alumina, silicon carbide, and silicon nitride. The high-temperature sintering aid is a glass powder (for example, SiO2-B2O3-ZnO glass powder, Tg temperature is 450°C-550°C), and the nano-toughening material can be white carbon black. The weight percentages of each component are: 30-70% for the skeleton material, 15-55% for the high-temperature sintering aid, and 5%-30% for the nano-toughening material. By adding the nano-toughening material to the composition of the porous matrix 1, the nano-toughening material can be filled between the skeleton material particles, increase the bonding strength between the skeleton material particles, and thus improve the structural strength of the porous matrix 1; at the same time, the nano-toughening material can play a role in high-temperature sintering, and liquid phase sintering is likely to occur during the sintering process, thereby reducing the sintering temperature.
[0054] 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 nano-toughening material, a pore-forming agent, paraffin and stearic acid. The skeleton material is one or more of diatomaceous earth, cordierite, silicon micropowder, quartz powder, kaolin, alumina, silicon carbide and silicon nitride, the high-temperature sintering aid is glass powder (for example, SiO2-B2O3-ZnO glass powder, Tg temperature is 450℃-550℃), the nano-toughening material is white carbon black, 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: 20-60% of the skeleton material, 5%-50% of the high temperature sintering agent, 1%-20% of the nano toughening material, 10%-50% of the pore-forming agent, 10%-20% of the paraffin wax, 2%-10% of the stearic acid, and the sum of the weight percentages of the components is 100%.
[0055] As an embodiment, the preparation method of the atomizer core is:
[0056] S10: mixing and ball-milling a certain amount of skeleton material, high-temperature sintering aid, nano-toughening material and pore-forming agent (specifically, the skeleton material, high-temperature sintering aid, nano-toughening material 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 mixed ball-milling time can be 1-8 hours, preferably 2-4 hours;
[0057] S20: mixing the above mixed powder with a certain amount of paraffin wax and stearic acid to obtain a ceramic slurry; the mixing and stirring temperature is 60° C.-120° C., and the mixing and stirring time is 2-8 hours;
[0058] 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 die casting;
[0059] S40: Dewaxing and sintering the ceramic green body at a preset temperature, and obtaining an atomizing core after cooling.
[0060] 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-die casting the ceramic slurry, wherein the preset pressure range can specifically be 0.3-0.8Mpa.
[0061] As an embodiment, in the above step S40, the wax is drained by siphoning, the wax draining temperature is 180℃-280℃, and the wax draining time is 1-6 hours; preferably, the wax draining temperature is 200℃-250℃, and the wax draining time is 2-4 hours. The sintering temperature is 500℃-800℃, and the sintering time is 2-8 hours; preferably, the sintering temperature is 600℃-750℃, and the sintering time is 3-5 hours.
[0062] This embodiment also provides an electronic atomizer, including the above-mentioned atomization core.
[0063] The atomizer core provided in this embodiment has a heating element 2 which is provided with a plurality of heating parts 221 connected in parallel. The plurality of heating parts 221 can work separately or simultaneously. By controlling the number of heating parts 221 connected to the circuit, the atomization amount of the atomizer core can be freely switched, and the same heating part 221 can be prevented from working for a long time, so as to reduce the generation of carbon deposits, ensure the atomization taste, and extend the service life of the atomizer core. At the same time, the heating element 2 adopts an orderly arrangement structure, and the two heating groups 22 are respectively arranged on the opposite sides of the total current collecting part 21, so that each heating part 221 can share the same total current collecting part 21, which can not only facilitate circuit connection and circuit control, but also greatly reduce the setting area of the current collecting part, which is conducive to increasing the setting area and coverage area of the heating part 221, thereby improving the atomization area and heating efficiency.
[0064] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope 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), wherein the heating element (2) comprises a total current collecting portion (21) and two heating groups (22) respectively arranged on opposite sides of the total current collecting portion (21), and each of the heating groups (22) comprises at least two heating portions (221) arranged at intervals; one end of each of the heating portions (221) is connected to the total current collecting portion (21), and the other end of each of the heating portions (221) is provided with a sub-current collecting portion (222).
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 two heating groups (22) are respectively arranged on opposite sides of the total collecting portion (21) along the first direction (X); the total collecting portion (21) extends along the second direction (Y), and the total collecting portion (21) is arranged at a middle position of the porous matrix (1) along the first direction (X); each heating portion (221) extends along the first direction (X), and at least two heating portions (221) in each heating group (22) are arranged at intervals along the second direction (Y).
3. The atomizer core according to claim 2, characterized in that: The total collecting section (21) comprises an intermediate collecting section (211) and a first collecting section (212) and a second collecting section (213) connected to the intermediate collecting section (211); the first collecting section (212) and the second collecting section (213) both extend along the second direction (Y), and the first collecting section (212) and the second collecting section (213) are respectively arranged on opposite sides of the intermediate collecting section (211) along the second direction (Y); a part of the heating sections (221) in each of the heating groups (22) is connected to the first collecting section (212), and another part of the heating sections (221) in each of the heating groups (22) is connected to the second collecting section (213).
4. 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).
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 (221), 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 some of the heating parts (221) have different resistance values; among the two heating parts (221) having different resistance values, the volume of the liquid storage tank (11) corresponding to the heating part (221) with a smaller resistance value is greater than the volume of the liquid storage tank (11) corresponding to the heating part (221) 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 sub-collecting portions (222) in the two heating groups (22) are respectively arranged at two opposite ends of the porous matrix (1); The sub-collecting portion (222) is completely located on the bottom surface of the porous matrix (1); or, a portion of the sub-collecting portion (222) is located on the bottom surface of the porous matrix (1), and another portion of the sub-collecting portion (222) is bent and located on the side wall of the porous matrix (1).
9. The atomizer core according to any one of claims 1 to 8, characterized in that: All of the heating parts (221) are heating nets or heating wires; or, at least some of the heating parts (221) are heating nets, and another part of the heating parts (221) 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.