Atomizing core and electronic atomizer
By designing atomization core of multiple parallel heating units, the problems of fixing atomization amount and carbon deposits in the prior art are solved, and flexible adjustment of atomization amount and extension of service life are achieved.
Patent Information
- Application Number
- CN202420730894.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Due to the limitation of a single heating matrix, the atomization core of the existing electronic atomizer is difficult to meet the needs of large smoke, and the atomization volume cannot be adjusted freely. Long-term work leads to carbon accumulation, affecting the taste and service life.
Atomization core is designed, and its heating body includes a total current collector and at least two parallel heating parts arranged at intervals. Each heating part consists of at least two heating wires arranged at intervals. By controlling the number of heating parts of the access circuit, the atomization amount is freely switched, and the same heating part is avoided working for a long time and reducing carbon deposits.
It realizes flexible adjustment of the atomization amount of the atomization core, meets the demand for large smoke, extends the service life, reduces the generation of carbon deposits, and ensures the atomization taste.
Smart Images
Figure CN222751439U_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 e-liquid 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. On the one hand, due to the limited heating power of the single heating substrate, the atomization efficiency of the atomizer core is limited, and it is difficult to meet the use requirements of a large amount of smoke; on the other hand, 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 size of the atomization amount, the electronic atomizer cannot meet the demand at this time; on the other hand, when a single heating substrate works for a long time, its surface is prone to carbon deposition (when a single heating substrate works at a high heating power, its working temperature is very high, and it is more likely to produce carbon deposition), thereby affecting 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 atomizer core, comprising a porous substrate and a heating element arranged on the surface of the porous substrate, wherein the heating element comprises a total current collecting portion and at least two heating portions arranged at intervals, one end of each of the heating portions is connected to the total current collecting portion, and the other end of each of the heating portions is provided with a sub-collecting portion; each of the heating portions comprises at least two heating wires arranged at intervals, and the two ends of each of the heating wires are respectively connected to the total current collecting portion and the corresponding sub-collecting portion.
[0006] In one achievable manner, at least two heating wires in each heating portion are arranged in parallel and at intervals.
[0007] In one achievable manner, in each of the heating parts, two adjacent heating wires are connected via an intermediate connecting part.
[0008] In one achievable manner, a bending structure is provided on the heating portion; in each heating portion, two adjacent heating wires are connected at the bending structure via the intermediate connecting portion.
[0009] In a feasible manner, at least a portion of the bending structure on the heating portion is provided with a hook connected to the middle connecting portion, and the hook is embedded in the porous matrix.
[0010] 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.
[0011] 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.
[0012] 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.
[0013] 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.
[0014] In an achievable manner, the porous matrix is a rectangular parallelepiped structure, and the total current collecting portion and the sub-current collecting portion are respectively arranged at two opposite ends of the porous matrix;
[0015] The total collecting portion and the sub-collecting portion are both completely located on the bottom surface of the porous matrix; or, a portion of the total collecting portion is located on the bottom surface of the porous matrix, and another portion of the total collecting portion is bent and located on the side wall of the porous matrix, and 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.
[0016] The utility model also provides an electronic atomizer, comprising the above-mentioned atomization core.
[0017] The atomizer core provided by the utility model has a heating element which is provided with at least two heating parts connected in parallel, each heating part can work separately or simultaneously, and by controlling the number of heating parts connected to the circuit, the atomization amount of the atomizer core can be freely switched, and at the same time, the same heating part can be prevented from working for a long time, carbon deposits can be reduced, the atomization taste can be ensured, and the service life of the atomizer core can be extended. Moreover, each heating part includes at least two heating wires connected in parallel, which can not only make each heating part have a higher heating power, but also at least two heating wires in each heating part can undertake heating work mutually, so the heating power of each heating wire does not need to be set too large, which can further reduce the carbon deposits on the heating part, and prevent the working temperature of the heating wire from being too high and causing the phenomenon of wire breaking. At the same time, at least two heating parts share the same total collector, which can not only facilitate circuit connection and circuit control, but also reduce the setting area of the collector, which is conducive to increasing the setting area and coverage area of the heating part, thereby improving the atomization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the atomizer core in the embodiment of the utility model.
[0019] Figure 2 for Figure 1 Top view of the .
[0020] Figure 3 for Figure 1 Bottom view of .
[0021] Figure 4 for Figure 1 Schematic cross-section of .
[0022] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the heating element.
[0023] Figure 6 It is a bottom view of the atomizer core in another embodiment of the utility model.
[0024] Figure 7 It is a bottom view of the atomizer core in another embodiment of the utility model.
[0025] Figure 8 It is a cross-sectional schematic diagram of an atomizer core in another embodiment of the utility model. DETAILED DESCRIPTION
[0026] 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.
[0027] 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.
[0028] 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.
[0029] 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 arranged in the porous substrate 1); the porous substrate 1 can be specifically porous ceramic or porous glass. The heating element 2 includes a total collector 22 and at least two heating elements 21 arranged at intervals. The heating element 21 is used to generate heat after power is turned on to heat and atomize the atomized liquid (such as tobacco oil).
[0030] Each heating part 21 is connected in parallel, one end of each heating part 21 is connected to the total current collecting part 22, and the other end of each heating part 21 is provided with a sub-current collecting part 23. Among them, the total 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 each sub-current collecting part 23 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 21. The number of heating parts 21 connected to the circuit (that is, the number of heating parts 21 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 21 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.
[0031] Each heating part 21 includes at least two heating wires 211 arranged at intervals, and the two ends of each heating wire 211 are respectively connected to the main collecting part 22 and the corresponding sub-collecting part 23 (that is, one end of each heating wire 211 is connected to the main collecting part 22, and the other end of each heating wire 211 is connected to the corresponding sub-collecting part 23), that is, at least two heating wires 211 in each heating part 21 are connected in parallel.
[0032] The atomizer core provided by the utility model has a heating element 2 with at least two heating parts 21 connected in parallel, and each heating part 21 can work separately or simultaneously. By controlling the number of heating parts 21 connected to the circuit, the atomization amount of the atomizer core can be freely switched, and at the same time, the same heating part 21 can be prevented from working for a long time, thereby reducing the generation of carbon deposits, ensuring the atomization taste, and extending the service life of the atomizer core. Moreover, each heating portion 21 includes at least two heating wires 211 connected in parallel, which not only enables each heating portion 21 to have a higher heating power, but also at least two heating wires 211 in each heating portion 21 can undertake the heating work for each other, so the heating power of each heating wire 211 does not need to be set too large, which can further reduce the generation of carbon deposits on the heating portion 21 and prevent the heating wire 211 from breaking due to excessive operating temperature (if only one heating wire 211 is provided in the heating portion 21, the heating wire 211 needs to have a higher heating power and a higher operating temperature; and when multiple heating wires 211 are provided in the heating portion 21, the heating power of each heating wire 211 can be appropriately reduced, and the operating temperature of each heating wire 211 can be appropriately reduced when the total heating power of the heating portion 21 remains unchanged or appropriately increased). At the same time, at least two heating parts 21 share the same total 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 21, thereby improving the atomization efficiency.
[0033] like Figure 3 and Figure 5 As shown, as an embodiment, at least two heating wires 211 in each heating portion 21 are arranged in parallel and spaced apart (it should be noted that the "parallel spacing" here means that the spacing between the two heating wires 211 at each position is equal, and does not limit the entire heating wire 211 to a linear structure. For example, when the heating wire 211 has both a straight segment and a bending segment, the spacing between the straight segments of the two heating wires 211 is equal to the spacing between the bending segments of the two heating wires 211). For example, when two heating wires 211 are provided in the heating portion 21, the two heating wires 211 are arranged in parallel and spaced apart. For another example, when three heating wires 211 are provided in the heating portion 21, the three heating wires 211 can all be arranged in parallel and spaced apart, or the heating wires 211 located on both sides are arranged in parallel and spaced apart, while the heating wire 211 located in the middle is not arranged in parallel (for example, the heating wire 211 located in the middle is a wavy structure).
[0034] like Figure 3 and Figure 5 As shown, as an implementation mode, the heating wires 211 in each heating portion 21 are arranged in parallel and spaced apart. Of course, in other embodiments, the heating wires 211 in each heating portion 21 may also be arranged in non-parallel.
[0035] like Figure 3 and Figure 5 As shown, as an implementation mode, in each heating portion 21, two adjacent heating wires 211 are connected by an intermediate connecting portion 212, and the intermediate connecting portion 212 and the heating wire 211 are an integral structure. The intermediate connecting portion 212 can not only improve the structural strength of the heating portion 21 and reduce the phenomenon of wire breakage of the heating wire 211, but also help maintain the shape of the heating wire 211, avoid bending, warping, etc. of the heating wire 211 due to thermal stress during operation, and ensure the adhesion between the heating wire 211 and the surface of the porous substrate 1.
[0036] like Figure 3 and Figure 5 As shown, as an embodiment, a bending structure 210 is provided on the heating portion 21 (i.e., the heating wire 211 is bent or curved at the bending structure 210; i.e., the heating wire 211 is not a straight strip structure); in each heating portion 21, two adjacent heating wires 211 are connected at the bending structure 210 through an intermediate connecting portion 212. Since the thermal stress generated by the heating wire 211 during operation is concentrated at the bending structure 210, the two adjacent heating wires 211 are connected at the bending structure 210 through the intermediate connecting portion 212, so as to avoid the bending, warping, wire breaking, etc. of the heating wire 211 at the bending structure 210 as much as possible. Of course, in other embodiments, the intermediate connecting portion 212 can also be set at other positions.
[0037] like Figure 3 and Figure 5 As shown, as an implementation mode, the heating portion 21 is in an S-shaped structure as a whole, that is, each heating wire 211 is in an S-shaped structure, and the middle connecting portion 212 is arranged at the S-shaped bending position of the heating wire 211.
[0038] like Figure 6 As shown, as another embodiment, the heating portion 21 has a mesh structure as a whole, and each heating wire 211 has a wavy structure (that is, the heating wire 211 is formed by connecting a plurality of V-shaped or inverted V-shaped units), and the intermediate connecting portion 212 is arranged at the crest position and the trough position of the heating wire 211 (that is, the intermediate connecting portion 212 is arranged at the V-shaped or inverted V-shaped bending position of the heating wire 211).
[0039] like Figure 7 As shown in the figure, as another embodiment, the heating portion 21 is in a bow-shaped structure that bends back and forth as a whole, and each heating wire 211 is in a bow-shaped structure that bends back and forth (that is, the heating wire 211 is formed by connecting a plurality of U-shaped or inverted U-shaped units), and the intermediate connecting portion 212 is arranged at the U-shaped or inverted U-shaped bending position of the heating wire 211. Of course, in other embodiments, the heating portion 21 and the heating wire 211 can also be in other shapes and structures.
[0040] like Figure 3 and Figure 5 As shown, as an implementation mode, the number of heating wires 211 in each heating portion 21 is the same. Of course, in other embodiments, the number of heating wires 211 in each heating portion 21 may also be different.
[0041] like Figure 3 and Figure 5 As shown, as an embodiment, the heating element 2 is provided with two heating portions 21 disposed at intervals. Of course, in other embodiments, the heating element 2 can also be provided with more heating portions 21 disposed at intervals.
[0042] like Figure 3 and Figure 5 As shown, as an implementation mode, each heating portion 21 is provided with two heating wires 211 arranged at intervals. Of course, in other embodiments, each heating portion 21 can also be provided with more heating wires 211 arranged at intervals.
[0043] As an implementation mode, the resistance values of all the heating parts 21 are the same, that is, the heating power of each heating part 21 is the same. As an implementation mode, the resistance value of each heating part 21 is 1.0 ohm to 1.3 ohm.
[0044] As another embodiment, at least two heating parts 21 have different resistance values, so that they have different heating powers (because the heating parts 21 are connected in parallel, according to the formula P = U 2 / R, the larger the resistance, the smaller the heating power), the corresponding amount of atomization generated is different, and the atomization effect is also different. For example, the number of heating parts 21 is two, and the resistance values of the two heating parts 21 are different. For another example, the number of heating parts 21 is greater than or equal to three, and the resistance value of the heating part 21 located in the middle position is less than the resistance value of the two heating parts 21 located on the outermost sides (that is, the heating power of the heating part 21 located in the middle position is greater, so that the heat can be quickly conducted from the middle to both sides). As an embodiment, in two heating parts 21 with different resistance values, the difference between the resistance values of the two heating parts 21 is 20% to 30% of the resistance value of the heating part 21 with a small resistance value. For example, if the resistance value of the heating part 21 with a small resistance value is 1 ohm, then the resistance value of the heating part 21 with a large resistance value is 1.2 ohms to 1.3 ohms.
[0045] like Figure 3 and Figure 5 As shown, as an implementation mode, the structures of all the heating parts 21 are the same. Specifically, in this embodiment, both heating parts 21 are S-shaped structures.
[0046] As another embodiment, among all the heating parts 21, at least some of the heating parts 21 have different structures. For example, at least some of the heating parts 21 are S-shaped structures, and other parts of the heating parts 21 are mesh structures or bow-shaped structures. When the heating parts 21 are required to have different resistance values, the structures of the heating parts 21 can be set to be different; or the structures of the heating parts 21 can be set to be the same, but the materials, thicknesses, etc. of the heating wires 211 in the heating parts 21 are different, so that they have different resistance values.
[0047] As an implementation manner, the resistance values of the heating wires 211 in each heating portion 21 are the same. Of course, in other embodiments, the resistance values of the heating wires 211 in each heating portion 21 may also be different.
[0048] 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 atomized liquid is provided on the top surface of the porous matrix 1 at a position corresponding to each heating part 21 (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 21 respectively), and the liquid storage tanks 11 are arranged at intervals from each other, so that each heating part 21 can heat and atomize the atomized liquid in the corresponding liquid storage tank 11 respectively.
[0049] 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.
[0050] like Figures 1 to 4 As shown, as an implementation mode, the resistance values of all the heating parts 21 are the same, and the volumes of all the liquid storage tanks 11 are the same.
[0051] As another embodiment, at least two heating parts 21 have different resistance values. Among the two heating parts 21 with different resistance values, the volume of the liquid storage tank 11 corresponding to the heating part 21 with a smaller resistance value is larger than the volume of the liquid storage tank 11 corresponding to the heating part 21 with a larger resistance value.
[0052] Specifically, since the heating power of the heating part 21 with a small resistance value is greater than the heating power of the heating part 21 with a large resistance value, the volume of the liquid storage tank 11 corresponding to the heating part 21 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 21, thereby meeting the oil supply requirements of the heating parts 21 with different powers (the greater the heating power of the heating part 21, the faster the rate at which it consumes the tobacco oil, and the greater the oil supply requirement). 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.
[0053] 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.
[0054] like Figures 1 to 4 As shown, as an embodiment, the porous matrix 1 is a rectangular block structure, the total collecting portion 22 and the sub-collecting portion 23 are both sheet structures, the total collecting portion 22 and the sub-collecting portion 23 are respectively arranged at the opposite ends of the porous matrix 1, and the total collecting portion 22 and the sub-collecting portion 23 are both completely located on the bottom surface of the porous matrix 1.
[0055] Specifically, the porous substrate 1 has a length direction L, a width direction W and a thickness direction T. The main collector 22 and the subcollector 23 are respectively arranged at opposite ends of the porous substrate 1 along the length direction L thereof, and at least two heat generating parts 21 are arranged in intervals along the width direction W.
[0056] like Figure 8 As shown, as another embodiment, the total collecting portion 22 and the sub-collecting portion 23 are respectively arranged at opposite ends of the porous matrix 1, and a part of the total collecting portion 22 is located on the bottom surface of the porous matrix 1, and another part of the total collecting portion 22 is located on the side wall of the porous matrix 1 after being bent; a part of the sub-collecting portion 23 is located on the bottom surface of the porous matrix 1, and another part of the sub-collecting portion 23 is located on the side wall of the porous matrix 1 after being bent. Such an arrangement can not only reduce the space occupied by the total collecting portion 22 and the sub-collecting portion 23 on the bottom surface of the porous matrix 1, increase the setting area and coverage area of the heating portion 21, and thus improve the atomization area and heating efficiency, but also increase the contact area between the total collecting portion 22 and the sub-collecting portion 23 and the porous matrix 1. At the same time, the total collecting portion 22 and the sub-collecting portion 23 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, reduce or avoid damage to the porous matrix 1, and make the atomization core have a higher structural strength, thereby extending its service life.
[0057] 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 total collecting portion 22, the sub-collecting portion 23 and the heating portion 21), 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.
[0058] like Figure 5 As shown, as an embodiment, the hooks 24 arranged on the heating part 21 are all connected to the heating wire 211; a part of the hooks 24 are arranged on the straight section (not numbered in the figure) of the heating wire 211, and another part of the hooks 24 are arranged at the bending structure 210 of the heating wire 211.
[0059] As another embodiment, at least part of the bending structure 210 on the heating portion 21 is provided with a hook 24 connected to the middle connecting portion 212, and the hook 24 is embedded in the porous matrix 1, thereby improving the tightness of the bonding between the heating wire 211 and the porous matrix 1 at the bending structure 210, and further avoiding the heating wire 211 from bending, warping, wire breakage, etc. at the bending structure 210.
[0060] 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.
[0061] 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.
[0062] 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.
[0063] 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%.
[0064] As an embodiment, the preparation method of the atomizer core is:
[0065] 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;
[0066] 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;
[0067] 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;
[0068] S40: Dewaxing and sintering the ceramic green body at a preset temperature, and obtaining an atomizing core after cooling.
[0069] 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.
[0070] 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.
[0071] This embodiment also provides an electronic atomizer, including the above-mentioned atomization core.
[0072] The atomizer core provided in this embodiment has a heating element 2, which is provided with at least two heating parts 21 connected in parallel, and each heating part 21 can work separately or simultaneously. By controlling the number of heating parts 21 connected to the circuit, the atomization amount of the atomizer core can be freely switched, and the same heating part 21 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. Moreover, each heating part 21 includes at least two heating wires 211 connected in parallel, which not only enables each heating part 21 to have a higher heating power, but also at least two heating wires 211 in each heating part 21 can undertake heating work mutually, so the heating power of each heating wire 211 does not need to be set too large, which can further reduce the generation of carbon deposits on the heating part 21, and prevent the working temperature of the heating wire 211 from being too high and causing the phenomenon of wire breakage. At the same time, at least two heating parts 21 share the same total collector 22, which can not only facilitate circuit connection and circuit control, but also reduce the setting area of the collector, which is conducive to increasing the setting area and coverage area of the heating part 21, thereby improving the atomization efficiency.
[0073] 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); the heating element (2) comprises a total current collecting portion (22) and at least two heating portions (21) arranged at intervals; one end of each heating portion (21) is connected to the total current collecting portion (22); and the other end of each heating portion (21) is provided with a sub-current collecting portion (23); each heating portion (21) comprises at least two heating wires (211) arranged at intervals; two ends of each heating wire (211) are respectively connected to the total current collecting portion (22) and the corresponding sub-current collecting portion (23).
2. The atomizer core according to claim 1, characterized in that: In each of the heating parts (21), at least two heating wires (211) are arranged in parallel and at intervals.
3. The atomizer core according to claim 1, characterized in that: In each of the heating parts (21), two adjacent heating wires (211) are connected via an intermediate connecting part (212).
4. The atomizer core according to claim 3, characterized in that: The heating portion (21) is provided with a bending structure (210); in each heating portion (21), two adjacent heating wires (211) are connected at the bending structure (210) via the intermediate connecting portion (212).
5. The atomizer core according to claim 4, characterized in that: At least part of the bent structure (210) on the heating portion (21) is provided with a hook (24) connected to the middle connecting portion (212), and the hook (24) is embedded in the porous matrix (1).
6. The atomizer core according to any one of claims 1 to 5, characterized in that: The heating element (2) is arranged on the bottom surface of the porous substrate (1), and a liquid storage tank (11) is arranged on the top surface of the porous substrate (1) at a position corresponding to each heating portion (21), and the liquid storage tanks (11) are arranged at intervals from each other; The resistance values of all the heating parts (21) are the same; or, the resistance values of at least two of the heating parts (21) are different.
7. The atomizer core according to claim 6, characterized in that: At least two of the heating parts (21) have different resistance values; among the two heating parts (21) having different resistance values, the volume of the liquid storage tank (11) corresponding to the heating part (21) with a smaller resistance value is greater than the volume of the liquid storage tank (11) corresponding to the heating part (21) with a larger resistance value.
8. The atomizer core according to claim 6, 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.
9. The atomizer core according to claim 6, characterized in that: The porous matrix (1) is a rectangular parallelepiped structure, and the total current collecting portion (22) and the sub-current collecting portion (23) are respectively arranged at two opposite ends of the porous matrix (1); The total current collecting portion (22) and the sub-current collecting portion (23) are both completely located on the bottom surface of the porous matrix (1); or, a portion of the total current collecting portion (22) is located on the bottom surface of the porous matrix (1), and another portion of the total current collecting portion (22) is bent and located on the side wall of the porous matrix (1), and a portion of the sub-current collecting portion (23) is located on the bottom surface of the porous matrix (1), and another portion of the sub-current collecting portion (23) is bent and located on the side wall of the porous matrix (1).
10. An electronic atomizer, characterized in that: The invention comprises an atomizing core as claimed in any one of claims 1 to 9.