Atomizing core and electronic atomizer
By designing multiple heat generating parts connected in parallel in the atomization core, the problems of fixing atomization amount and carbon deposit in the existing atomization core are solved, and free switching of atomization amount and extension of service life are achieved.
Patent Information
- Application Number
- CN202420602747.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The amount of atomization of the existing atomization core is fixed, which cannot meet the changes in user needs. At the same time, the heating matrix can easily accumulate carbon when working for a long time, affecting the taste.
Atomizing core is designed, including a porous substrate and a heating element arranged on its surface. The heating element includes first and second heating parts connected in parallel. The resistance values are different, and can work independently or simultaneously to adjust the atomization amount, and avoid long-term work by switching the heating part.
The atomization amount of the atomization of the atomization core is achieved, which reduces the production of carbon deposits, ensures the atomization taste, and extends the service life of the atomization core.
Smart Images
Figure CN222751438U_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 current atomizer core generally includes a porous ceramic substrate and a heating substrate arranged on the porous ceramic substrate. The heating substrate is generally a structure such as a resistor film, a heating wire, or a heating mesh. The heating substrate heats the porous ceramic substrate by direct contact to heat and atomize the tobacco oil in the porous ceramic substrate.
[0004] 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 volume of the atomizer core is generally fixed; when the user needs to change the atomization volume, the electronic atomizer cannot meet the demand. At the same time, when the heating substrate works for a long time, carbon deposits are easy to form on its surface, thus affecting the atomization taste. Utility Model Content
[0005] The purpose of the utility model is to provide an atomizer core, which can freely switch heating parts with different resistance values for heating and atomization, so that the atomizer core can freely switch the atomization amount, 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.
[0006] The utility model provides an atomization core, comprising a porous substrate and a heating element arranged on the surface of the porous substrate, the heating element comprising a heating portion and a current collecting portion, the heating portion at least comprising a first heating portion and a second heating portion arranged at intervals, the current collecting portion at least comprising a first current collecting portion, a second current collecting portion and a third current collecting portion arranged at intervals, the first current collecting portion is simultaneously connected to one end of the first heating portion and one end of the second heating portion, the second current collecting portion is connected to the other end of the first heating portion, and the third current collecting portion is connected to the other end of the second heating portion; the resistance value of the first heating portion is greater than the resistance value of the second heating portion.
[0007] In an achievable manner, the difference between the resistance value of the first heating portion and the resistance value of the second heating portion is 20% to 30% of the resistance value of the second heating portion.
[0008] In one achievable manner, the first heat generating portion and the second heat generating portion are both disposed on the bottom surface of the porous substrate.
[0009] In one feasible manner, a plurality of liquid storage tanks are provided on the top surface of the porous substrate, and the plurality of liquid storage tanks include at least a first liquid storage tank and a second liquid storage tank which are spaced apart from each other, wherein the first liquid storage tank corresponds to the first heating portion, and the second liquid storage tank corresponds to the second heating portion.
[0010] In one achievable manner, the volume of the second liquid storage tank is greater than the volume of the first liquid storage tank.
[0011] In one achievable manner, the difference between the volume of the second liquid storage tank and the volume of the first liquid storage tank is 20% to 30% of the volume of the second liquid storage tank.
[0012] In one feasible manner, the porous matrix is a rectangular structure, the first collecting portion is arranged at one end of the porous matrix, and the second collecting portion and the third collecting portion are both arranged at the other end opposite to the porous matrix; a portion of the first collecting portion is arranged on the bottom surface of the porous matrix, and another portion of the first collecting portion is bent and arranged on the side wall of the porous matrix; a portion of the second collecting portion is arranged on the bottom surface of the porous matrix, and another portion of the second collecting portion is bent and arranged on the side wall of the porous matrix; a portion of the third collecting portion is arranged on the bottom surface of the porous matrix, and another portion of the third collecting portion is bent and arranged on the side wall of the porous matrix.
[0013] In one achievable manner, the first heating portion and the second heating portion are respectively arranged on surfaces on opposite sides of the porous matrix; or, the first heating portion and the second heating portion are respectively arranged on surfaces on adjacent sides of the porous matrix.
[0014] In one achievable manner, the first heating part and the second heating part are both heating nets or both heating wires; or, one of the first heating part and the second heating part is a heating net, and the other is a heating wire.
[0015] The utility model also provides an electronic atomizer, comprising the above-mentioned atomization core.
[0016] The atomizer core provided by the utility model is configured to have a parallel connection structure between the first heating part and the second heating part in the heating element, and the resistance value of the first heating part is greater than the resistance value of the second heating part, so that the first heating part and the second heating part have different heating powers, and different atomization amounts can be generated when the first heating part and the second heating part work separately or simultaneously; by switching the first heating part and the second heating part to work alternately or simultaneously, the atomizer core can freely switch the atomization amount, and can avoid the same heating part working for a long time, reduce the generation of carbon deposits, ensure the atomization taste, and extend the service life of the atomizer core. At the same time, the first heating part and the second heating part share the same first collector, which can facilitate circuit connection and circuit control. 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 It is a bottom view of the atomizer core in another embodiment of the utility model.
[0021] Figure 5 for Figure 4 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 schematic diagram of the three-dimensional structure of the atomizer core in another embodiment of the utility model.
[0024] Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure in another direction.
[0025] Fig. 9 for Figure 7 Bottom view of . 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 utility model 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 3 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 matrix 1 and a heating element 2 arranged on the surface of the porous matrix 1, and the porous matrix 1 is a porous structure (that is, a plurality of micropores are arranged in the porous matrix 1); the porous matrix 1 can be specifically porous ceramic or porous glass, etc. The heating element 2 includes at least two heating parts and at least three collecting parts, and at least two heating parts are connected in parallel; and among the heating parts, at least two heating parts have different resistance values (or the resistance values of all the heating parts are different), so that they have different heating powers (because the heating parts are connected in parallel, according to the formula P=U 2 / R, the greater the resistance, the smaller the heating power). The heating part is used to generate heat after power is turned on to heat and atomize the atomized liquid (such as e-liquid), and the current collecting part is used to connect to the positive and negative electrodes of the power source (not shown).
[0030] The heating part at least includes a first heating part 21 and a second heating part 22 arranged at intervals (in this embodiment, the number of heating parts is two, and in other embodiments, the number of heating parts can also be more, such as three, four, etc.), the resistance value of the first heating part 21 is greater than the resistance value of the second heating part 22, that is, the heating power of the second heating part 22 is greater than the heating power of the first heating part 21. The current collecting part at least includes a first current collecting part 23, a second current collecting part 24 and a third current collecting part 25 arranged at intervals, the first current collecting part 23 is connected to one end of the first heating part 21 and one end of the second heating part 22 at the same time, the second current collecting part 24 is connected to the other end of the first heating part 21, and the third current collecting part 25 is connected to the other end of the second heating part 22. The first current collecting part 23 is used to connect to one of the positive and negative poles of the power supply (for example, the positive pole), and the second current collecting part 24 and the third current collecting part 25 are respectively used to connect to the other pole of the positive and negative poles of the power supply (for example, the negative pole), so as to realize the parallel connection of the first heating part 21 and the second heating part 22. Since the first heating part 21 and the second heating part 22 have different heating powers, the atomizer core can produce different atomization amounts when the first heating part 21 and the second heating part 22 work separately or simultaneously. Specifically, in this embodiment, the atomizer core can produce three different atomization amounts: when the first heating part 21 works alone, the atomizer core produces the least atomization amount; when the second heating part 22 works alone, the atomizer core produces more atomization amount than the first heating part 21 works alone; when the first heating part 21 and the second heating part 22 work simultaneously, the atomizer core produces more atomization amount than the second heating part 22 works alone. At this time, the atomizer core produces the largest atomization amount, which can meet the use requirements of large smoke volume. The atomization amount produced by the atomizer core is different, and the taste experience is also different.
[0031] The atomizer core provided in this embodiment is configured to have a parallel connection structure between the first heating part 21 and the second heating part 22 in the heating element 2, and the resistance value of the first heating part 21 is greater than the resistance value of the second heating part 22, so that the first heating part 21 and the second heating part 22 have different heating powers, and different atomization amounts can be generated when the first heating part 21 and the second heating part 22 work separately or simultaneously; by switching the first heating part 21 and the second heating part 22 to work alternately or simultaneously, the atomizer core can freely switch the atomization amount, and at the same time, it can avoid the same heating part working for a long time, reduce the generation of carbon deposits, ensure the atomization taste, and extend the service life of the atomizer core. At the same time, the first heating part 21 and the second heating part 22 share the same first collector 23, which can facilitate circuit connection and circuit control (that is, the first collector 23, the second collector 24 and the third collector 25 are provided on the heating element 2. Compared with the four contacts, the number of wires can be reduced and the circuit connection structure can be simplified).
[0032] As an embodiment, the difference between the resistance value of the first heating part 21 and the resistance value of the second heating part 22 is 20% to 30% of the resistance value of the second heating part 22. For example, if the resistance value of the second heating part 22 is 1 ohm, the resistance value of the first heating part 21 is 1.2 ohms to 1.3 ohms.
[0033] like Figures 1 to 3 As shown, as an embodiment, the first heating part 21 and the second heating part 22 are arranged on the surface of the same side of the porous substrate 1. In this embodiment, the first heating part 21 and the second heating part 22 are both arranged on the bottom surface of the porous substrate 1. A plurality of liquid reservoirs for temporarily storing atomized liquid are provided on the top surface of the porous substrate 1 (i.e., on the surface on the side opposite to the first heating part 21 and the second heating part 22), and the plurality of liquid reservoirs correspond to the plurality of heating parts respectively. The plurality of liquid reservoirs at least include the first liquid reservoir 11 and the second liquid reservoir 12 arranged at intervals (in this embodiment, the number of liquid reservoirs is two, and in other embodiments, the number of liquid reservoirs can also be more, and the number of liquid reservoirs is the same as the number of heating parts and corresponds one to one), the first liquid reservoir 11 corresponds to the first heating part 21, and the second liquid reservoir 12 corresponds to the second heating part 22, so that the first heating part 21 and the second heating part 22 can heat and atomize the atomized liquid in the first liquid reservoir 11 and the second liquid reservoir 12 respectively.
[0034] Of course, in other embodiments, the first heating portion 21 and the second heating portion 22 may also be disposed on surfaces on different sides of the porous substrate 1. For example, the first heating portion 21 and the second heating portion 22 are respectively disposed on surfaces on opposite sides of the porous substrate 1; or, the first heating portion 21 and the second heating portion 22 are respectively disposed on surfaces on adjacent sides of the porous substrate 1.
[0035] As an implementation mode, since the heating power of the second heating part 22 is greater than the heating power of the first heating part 21, the volume of the second liquid storage tank 12 is greater than the volume of the first liquid storage tank 11, and the liquid storage capacity of the second liquid storage tank 12 is greater than the liquid storage capacity of the first liquid storage tank 11, so that the liquid storage capacity of the liquid storage tank matches the power of the heating part, thereby meeting the oil supply requirements of heating parts with different powers (the greater the heating power of the heating part, the faster the rate at which it consumes the tobacco oil, and the greater the oil supply requirement). Specifically, in order to make the volume of the second liquid storage tank 12 larger than the volume of the first liquid storage tank 11, the cross-sectional area of the second liquid storage tank 12 can be set to be larger than the cross-sectional area of the first liquid storage tank 11, and / or the depth of the second liquid storage tank 12 can be set to be larger than the depth of the first liquid storage tank 11.
[0036] As an embodiment, the difference between the volume of the second liquid reservoir 12 and the volume of the first liquid reservoir 11 is 20% to 30% of the volume of the second liquid reservoir 12. For example, if the volume of the second liquid reservoir 12 is 1 mL, the volume of the first liquid reservoir 11 is 0.7 mL to 0.8 mL.
[0037] like Figure 1 and Figure 3 As shown, as an implementation mode, the first heating part 21 and the second heating part 22 have different structures (that is, they are different heating structures), one of the first heating part 21 and the second heating part 22 is a heating net, and the other is a heating wire (in the present embodiment, the first heating part 21 is a heating net, and the second heating part 22 is a heating wire; of course, it can also be other heating structures), so that the first heating part 21 and the second heating part 22 have different heating power and heating effect.
[0038] Of course, in other embodiments, the structures of the first heating part 21 and the second heating part 22 may be the same (i.e., they are the same heating structure). In this case, the materials, thickness, etc. of the two parts may be adjusted to be different so that the first heating part 21 and the second heating part 22 have different heating powers and heating effects. Figure 4 and Figure 5 As shown, the first heating part 21 and the second heating part 22 are both heating wires; at the same time, the heating element 2 is provided with a plurality of hooks 26, which are embedded in the porous matrix 1 to improve the tightness of the combination between the heating element 2 and the porous matrix 1. Figure 6 As shown, the first heating part 21 and the second heating part 22 are both heating nets.
[0039] like Figures 1 to 3 As shown, as an embodiment, the porous matrix 1 is a rectangular block structure, the first collecting portion 23 is arranged at one end of the porous matrix 1, the second collecting portion 24 and the third collecting portion 25 are both arranged at the other end opposite to the porous matrix 1, and the first collecting portion 23, the second collecting portion 24 and the third collecting portion 25 are all completely located on the bottom surface of the porous matrix 1.
[0040] Specifically, the porous substrate 1 has a length direction L, a width direction W and a thickness direction T. The first heating portion 21 and the second heating portion 22 both extend along the length direction L, and the first heating portion 21 and the second heating portion 22 are arranged at intervals along the width direction W. The first collector 23 is arranged at one end of the porous substrate 1 along the length direction L, and the second collector 24 and the third collector 25 are both arranged at the other end of the porous substrate 1 along the length direction L. The first liquid reservoir 11 and the second liquid reservoir 12 are both rectangular parallelepiped structures, and the first liquid reservoir 11 and the second liquid reservoir 12 both extend along the length direction L, and the first liquid reservoir 11 and the second liquid reservoir 12 are arranged at intervals along the width direction W.
[0041] like Figures 7 to 9 As shown, as another embodiment, the first collecting portion 23 is arranged at one end of the porous substrate 1, and the second collecting portion 24 and the third collecting portion 25 are both arranged at the other end opposite to the porous substrate 1; and a part of the first collecting portion 23 is arranged on the bottom surface of the porous substrate 1, and another part of the first collecting portion 23 is bent and arranged on the side wall of the porous substrate 1; a part of the second collecting portion 24 is arranged on the bottom surface of the porous substrate 1, and another part of the second collecting portion 24 is bent and arranged on the side wall of the porous substrate 1; a part of the third collecting portion 25 is arranged on the bottom surface of the porous substrate 1, and another part of the third collecting portion 25 is bent and arranged on the side wall of the porous substrate 1. Such arrangement not only allows the first heating portion 21 and the second heating portion 22 to extend to both sides as much as possible to increase the setting area and coverage area of the first heating portion 21 and the second heating portion 22, thereby improving the atomization area and heating efficiency, but also can increase the contact area between the first collecting portion 23, the second collecting portion 24 and the third collecting portion 25 and the porous matrix 1. At the same time, the first collecting portion 23, the second collecting portion 24 and the third collecting portion 25 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.
[0042] 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.
[0043] 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.
[0044] 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.
[0045] 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%.
[0046] As an embodiment, the preparation method of the atomizer core is:
[0047] 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;
[0048] 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;
[0049] 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;
[0050] S40: Dewaxing and sintering the ceramic green body at a preset temperature, and obtaining an atomizing core after cooling.
[0051] As an embodiment, the above-mentioned S30 step specifically includes: placing the heating support 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.
[0052] 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.
[0053] This embodiment also provides an electronic atomizer, including the above-mentioned atomization core.
[0054] The atomizer core provided in this embodiment is configured to have a parallel connection structure between the first heating part 21 and the second heating part 22 in the heating element 2, and the resistance value of the first heating part 21 is greater than the resistance value of the second heating part 22, so that the first heating part 21 and the second heating part 22 have different heating powers, and different atomization amounts can be generated when the first heating part 21 and the second heating part 22 work separately or simultaneously; by switching the first heating part 21 and the second heating part 22 to work alternately or simultaneously, the atomizer core can freely switch the atomization amount, and can avoid the same heating part working for a long time, reduce the generation of carbon deposits, ensure the atomization taste, and extend the service life of the atomizer core. At the same time, the first heating part 21 and the second heating part 22 share the same first collector 23, which can facilitate circuit connection and circuit control.
[0055] 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 heating portion and a current collecting portion; the heating portion comprises at least a first heating portion (21) and a second heating portion (22) arranged at intervals; the current collecting portion comprises at least a first current collecting portion (23), a second current collecting portion (24) and a third current collecting portion (25) arranged at intervals; the first current collecting portion (23) is connected to one end of the first heating portion (21) and one end of the second heating portion (22) at the same time; the second current collecting portion (24) is connected to the other end of the first heating portion (21); and the third current collecting portion (25) is connected to the other end of the second heating portion (22); the resistance value of the first heating portion (21) is greater than the resistance value of the second heating portion (22).
2. The atomizer core according to claim 1, characterized in that: The difference between the resistance value of the first heating portion (21) and the resistance value of the second heating portion (22) is 20% to 30% of the resistance value of the second heating portion (22).
3. The atomizer core according to claim 1, characterized in that: The first heating portion (21) and the second heating portion (22) are both arranged on the bottom surface of the porous substrate (1).
4. The atomizer core according to claim 3, characterized in that: A plurality of liquid storage tanks are provided on the top surface of the porous substrate (1), and the plurality of liquid storage tanks at least include a first liquid storage tank (11) and a second liquid storage tank (12) which are arranged at intervals, the first liquid storage tank (11) corresponding to the first heating portion (21), and the second liquid storage tank (12) corresponding to the second heating portion (22).
5. The atomizer core according to claim 4, characterized in that: The volume of the second liquid storage tank (12) is greater than the volume of the first liquid storage tank (11).
6. The atomizer core according to claim 5, characterized in that: The difference between the volume of the second liquid storage tank (12) and the volume of the first liquid storage tank (11) is 20% to 30% of the volume of the second liquid storage tank (12).
7. The atomizer core according to claim 3, characterized in that: The porous substrate (1) is a rectangular parallelepiped structure, the first current collecting portion (23) is arranged at one end of the porous substrate (1), and the second current collecting portion (24) and the third current collecting portion (25) are both arranged at the other end of the porous substrate (1) opposite thereto; a portion of the first current collecting portion (23) is arranged on the bottom surface of the porous substrate (1), and another portion of the first current collecting portion (23) is bent and arranged on the side wall of the porous substrate (1); a portion of the second current collecting portion (24) is arranged on the bottom surface of the porous substrate (1), and another portion of the second current collecting portion (24) is bent and arranged on the side wall of the porous substrate (1); a portion of the third current collecting portion (25) is arranged on the bottom surface of the porous substrate (1), and another portion of the third current collecting portion (25) is bent and arranged on the side wall of the porous substrate (1).
8. The atomizer core according to claim 1, characterized in that: The first heating portion (21) and the second heating portion (22) are respectively arranged on the surfaces of two opposite sides of the porous matrix (1); or, the first heating portion (21) and the second heating portion (22) are respectively arranged on the surfaces of two adjacent sides of the porous matrix (1).
9. The atomizer core according to any one of claims 1 to 8, characterized in that: The first heating part (21) and the second heating part (22) are both heating nets or both heating wires; or, one of the first heating part (21) and the second heating part (22) is a heating net and the other is a heating wire.
10. An electronic atomizer, characterized in that: The invention comprises an atomizing core as claimed in any one of claims 1 to 9.