E-cigarette atomization core and its preparation method

Abstract

The present invention relates to the technical field of electronic cigarettes, and particularly relates to an atomization core for an electronic cigarette and a preparation method thereof. The atomization core for an electronic cigarette includes a heating element and an oil storage body connected to the heating element. The heating element includes a first ceramic block and a heating mesh piece embedded in the first ceramic block. The heating mesh piece includes electrodes, a heating wire assembly connected between the electrodes, and fixed pins. The depth at which the electrodes and the heating wire assembly are embedded in the first ceramic block is 0.5 to 1 times the thickness of the heating mesh piece. The depth at which the fixed pins are embedded inside the first ceramic block is 0 to 1 times the thickness of the first ceramic block. The included angle between the fixed pins and the heating wire assembly is 0 to 180°. By the above method, it is possible to prevent the heating mesh piece from being easily separated from the first ceramic block when heated, reduce the material selection requirements for the heating mesh piece and the first ceramic block, and at the same time, reduce the preparation process requirements for the heating element and improve the production yield.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and particularly relates to an atomization core for an electronic cigarette and a preparation method thereof. Background Art

[0002] A ceramic heating element is a safe and reliable electric heating element that generates heat on the plate surface after being energized, is not charged, and has no open flame. The current main form of the ceramic heating element is a heating element produced by printing electronic paste on ceramics, baking at high temperature, and then processing electrodes and leads. However, heating elements with printed heating circuits generally have technical defects such as slow heating rate, uneven temperature distribution, easy breakage of heating circuits, easy warping, deformation, and even cracking of ceramic chips, poor use experience, and short service life.

[0003] At present, some heating elements are inlaid with stainless steel heating mesh sheets on the ceramic surface. Although it can solve problems such as slow heating rate, uneven temperature distribution, easy breakage of heating circuits, easy warping, deformation, and even cracking of ceramic chips in heating elements with printed heating circuits, the thermal expansion of the heating mesh sheet is generally larger than that of the ceramic, which has strict requirements for the selection of materials for the heating mesh sheet and the ceramic. During forming and sintering, the heating mesh sheet is easily separated from the ceramic blank. When energized, the heating mesh sheet will heat up, expand, and deform, resulting in the separation of the heating mesh sheet from the ceramic body, causing dry burning and even burning out the atomization core assembly.

[0004] In view of this, overcoming the above defects in the prior art and providing a new atomization core for an electronic cigarette and a preparation method thereof have become urgent technical problems in this field. Summary of the Invention

[0005] The purpose of the present invention is to provide an atomization core for an electronic cigarette and a preparation method thereof in view of the above-mentioned defects of the prior art.

[0006] The purpose of the present invention can be achieved by the following technical measures:

[0007] An embodiment of the present invention provides an atomization core for an electronic cigarette, which includes: a heating element and an oil storage body connected to the heating element;

[0008] The heating element includes a first ceramic block and a heating mesh sheet inlaid on the first ceramic block. The heating mesh sheet includes electrodes, a heating wire assembly connected between the electrodes, and fixed pins. The depth at which the electrodes and the heating wire assembly are inlaid in the first ceramic block is 0.5 to 1 times the thickness of the heating mesh sheet. The depth at which the fixed pins are inlaid inside the first ceramic block is 0 to 1 times the thickness of the first ceramic block. The included angle between the fixed pins and the heating wire assembly is 0 to 180°.

[0009] According to an embodiment of the present invention, the shape of the fixed pins includes at least one of I-shaped, L-shaped, inverted T-shaped, inverted Y-shaped, inverted "dry"-shaped, and inverted "individual"-shaped.

[0010] According to an embodiment of the present invention, the length of the first ceramic block is 1 to 2 times that of the heating mesh sheet, and the width of the first ceramic block is 1 to 2 times that of the heating mesh sheet.

[0011] According to an embodiment of the present invention, the oil storage body includes a second ceramic block. Both the first ceramic block and the second ceramic block are porous ceramics, and the first ceramic block and the second ceramic block are made of the same or different materials.

[0012] According to an embodiment of the present invention, the porosity of the first ceramic block is 10 to 70%, the pore diameter is 5 to 70 μm, the porosity of the second ceramic block is 20 to 90%, and the pore diameter is 10 to 100 μm.

[0013] According to an embodiment of the present invention, the length of the second ceramic block is 1 to 2 times that of the first ceramic block, and the width of the second ceramic block is 1 to 2 times that of the first ceramic block.

[0014] According to an embodiment of the present invention, the second ceramic block is in a strip shape, a groove shape, a bowl shape, a square tubular shape, a circular tubular shape, or a semi-circular tubular shape.

[0015] According to an embodiment of the present invention, the electrode is treated by laser engraving or screen printing silver paste.

[0016] According to an embodiment of the present invention, the heating wire assembly includes at least one heating wire, and multiple heating wires are connected in parallel.

[0017] An embodiment of the present invention also provides a method for preparing an electronic cigarette atomization core, which includes:

[0018] Preparing a first ceramic block feedstock and a second ceramic block feedstock according to a first ceramic block formula and a second ceramic block formula respectively;

[0019] Placing the heating mesh sheet at a preset position in the mold, injecting the first ceramic block feedstock and the second ceramic block feedstock at the positions of the heating body and the oil storage body in the mold respectively, cooling and solidifying to form a green body, and pushing out the heating mesh sheet and the green body together. The heating mesh sheet is embedded in the green body;

[0020] Laying the green body flat on a sintering plate or filling it with alumina powder in a crucible, and sintering in air at a temperature of 400 to 900 °C to obtain the atomization core.

[0021] According to an embodiment of the present invention, the first ceramic block formulation and the second ceramic block formulation each include the following components by mass fraction: ceramic powder: 30-90%, paraffin wax: 10-40%, glass powder: 5-80%, pore former: 5-60%, modifier: 0-10%.

[0022] An embodiment of the present invention also provides a method for preparing an electronic cigarette atomizing core, which includes:

[0023] Weigh according to the mass fraction of each component as follows: ceramic powder: 30-90%, paraffin wax: 10-40%, glass powder: 5-80%, pore former: 5-60%, modifier: 0-10%. Roll and dry mix the weighed ceramic powder, paraffin wax, glass powder and pore former for 5-24 hours to obtain a mixed material; stir and heat the mixed material to make the paraffin wax reach a molten state, add the formulated modifier, and stir for another 1-10 hours to obtain a ceramic feedstock;

[0024] Place the heating mesh in the preset position of the mold, inject the ceramic feedstock into the mold at a temperature of 40-100°C. After the feedstock cools and solidifies, a green body is formed. Push out the heating mesh and the green body together, and the heating mesh is embedded in the green body;

[0025] Lay the green body flat on a bearing plate or bury it in a crucible with alumina powder, and sinter it in air at a temperature of 400-900°C to obtain the atomizing core.

[0026] In the electronic cigarette atomizing core and its preparation method of the present invention, the electrode and the heating wire assembly are embedded in the first ceramic block to a certain depth. At the same time, fixed pins are designed and embedded in the first ceramic block on the heating mesh, so that the heating mesh is not easily separated from the first ceramic block when heated, reducing the material selection requirements for the heating mesh and the first ceramic block. At the same time, the preparation process requirements of the heating element are reduced, and the production yield is improved. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the electronic cigarette atomizing core according to the first embodiment of the present invention.

[0028] Figure 2 is Figure 1 the sectional view of

[0029] Figure 3 is a schematic structural diagram of the electronic cigarette atomizing core according to the second embodiment of the present invention.

[0030] Figure 4 is Figure 3 the sectional view of

[0031] Figure 5 is a schematic structural diagram of the heating mesh according to the first embodiment of the present invention.

[0032] Figure 6 is Figure 5 the structural schematic diagram after the heating mesh is inverted.

[0033] Figure 7 is Figure 5 the top view.

[0034] Figure 8 is the structural schematic diagram of the heating mesh of the second embodiment of the present invention.

[0035] Figure 9 is the structural schematic diagram of the electronic cigarette atomization core of the third embodiment of the present invention.

[0036] Figure 10 is Figure 9 the sectional view.

[0037] Figure 11 is the structural schematic diagram of the electronic cigarette atomization core of the fourth embodiment of the present invention.

[0038] Figure 12 is Figure 11 the sectional view.

[0039] Figure 13 is the structural schematic diagram of the electronic cigarette atomization core of the fifth embodiment of the present invention.

[0040] Figure 14 is Figure 13 the sectional view.

[0041] Figure 15 is the structural schematic diagram of the electronic cigarette atomization core of the sixth embodiment of the present invention.

[0042] Figure 16 is Figure 15 the sectional view.

[0043] Figure 17 is the structural schematic diagram of the electronic cigarette atomization core of the seventh embodiment of the present invention.

[0044] Figure 18 is Figure 17 the sectional view.

[0045] Figure 19 is the process schematic diagram of the preparation method of the electronic cigarette atomization core of the first embodiment of the present invention.

[0046] Figure 20 is the process schematic diagram of the preparation method of the electronic cigarette atomization core of the second embodiment of the present invention. Specific embodiments

[0047] To make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0048] To make the description of the present disclosure more detailed and complete, the following provides an illustrative description of the embodiments and specific examples of the present invention; however, this is not the only form for implementing or applying the specific examples of the present invention. The embodiments cover the features of multiple specific examples and the method steps and their sequences for constructing and operating these specific examples. However, other specific examples can also be used to achieve the same or equivalent functions and step sequences.

[0049] Figures 1 to 4 An electronic cigarette atomizing core is shown, and the electronic cigarette atomizing core includes: a heating element 10 and an oil storage body 20. The heating element 10 and the oil storage body 20 are tightly connected. The heating element 10 and the oil storage body 20 can be integrally formed during preparation, as Figure 1 and Figure 2 shown, or can be formed separately one after another, as Figure 3 and Figure 4 shown.

[0050] Further, please refer to Figure 1 , the heating element 10 includes a first ceramic block 101 and a heating mesh 102 embedded in the first ceramic block 101. Please refer to FIGS. 5 to Figure 7 , the heating mesh 102 includes electrodes 1020, a heating wire assembly 1021 connected between the electrodes 1020, and fixed pins 1022. The depth at which the electrodes 1020 and the heating wire assembly 1021 are embedded in the first ceramic block 101 is 0.5 to 1 times the thickness of the heating mesh 102. The depth at which the fixed pins 1022 are embedded inside the first ceramic block 101 is 0 to 1 times the thickness of the first ceramic block 101. The included angle between the fixed pins 1022 and the heating wire assembly 1021 is 0 to 180°.

[0051] In this embodiment, the electrodes 1020 and the heating wire assembly 1021 are embedded in the first ceramic block 101 to a certain depth. At the same time, fixed pins 1022 embedded in the first ceramic block 101 are designed on the heating mesh 102, so that the heating mesh 102 is not easily separated from the first ceramic block 101 when heated, reducing the material selection requirements for the heating mesh 102 and the first ceramic block 101. At the same time, the preparation process requirements of the heating element 10 are reduced, and the production yield is improved.

[0052] Furthermore, the shape of the fixing pin 1022 includes at least one of: I-shaped, L-shaped, inverted T-shaped, inverted Y-shaped, inverted "stem" shape and inverted "individual" shape. Preferably, the fixing pin 1022 is L-shaped or inverted T-shaped, which is easy to process and not easy to deform when producing porous ceramic blanks. In this embodiment, Figure 5 and Figure 6 As shown, the fixing pin 1022 connected to the electrode 1020 is L-shaped, and the fixing pin 1022 connected to the heating wire assembly 1021 is T-shaped. A plurality of fixing pins 1022 are provided, and at least four fixing pins 1022 are embedded in the first ceramic block 101, so that the heating mesh 102 is more firmly connected to the first ceramic block 101, and the heating mesh 102 is prevented from being separated from the first ceramic block 101 when heated.

[0053] Furthermore, the electrode 1020 is processed by laser engraving or silk-screen silver paste to reduce contact resistance.

[0054] Furthermore, the heating wire assembly 1021 includes at least one heating wire, and the plurality of heating wires are connected in parallel, and the line width of the heating wire is 0.05 to 1 mm. Figures 5 to 7 As shown; in another embodiment, the heating wire assembly 1021 includes two heating wires connected in parallel, such as Figure 8 Furthermore, the material of the heating wire includes: one of nickel-chromium alloy, iron-chromium-aluminum alloy, stainless steel, pure nickel, titanium, and nickel-iron.

[0055] Furthermore, the length of the first ceramic block 101 is 1 to 2 times that of the heating mesh 102, the width of the first ceramic block 101 is 1 to 2 times that of the heating mesh 102, and the thickness of the first ceramic block 101 is 0.1 to 5 mm. If the area of ​​the first ceramic block 101 is much larger than the area of ​​the heating mesh 102, uneven heating will be caused, resulting in poor atomization effect. If the first ceramic block 101 is too thick, the oil supply will not keep up, resulting in dry burning or burning. If the heating element is too thin, it will cause oil leakage.

[0056] Based on the above embodiments, further see Figures 1 to 4 The oil storage body 20 includes a second ceramic block 201. The first ceramic block 101 and the second ceramic block 201 are both porous ceramics. The first ceramic block 101 and the second ceramic block 201 are made of the same or different materials.

[0057] Furthermore, the porosity of the first ceramic block 101 is 10-70%, and the pore size is 5-70 μm. Preferably, the porosity of the first ceramic block 101 is 20-60%, and the pore size is 5-40 μm. The porosity of the second ceramic block 201 is 20-90%, and the pore size is 10-100 μm. Preferably, the porosity of the second ceramic block 201 is 40-70%, and the pore size is 10-50 μm.

[0058] In this embodiment, the heating element 10 and the oil storage body 20 are formed successively with different materials, so that the heating element 10 and the oil storage body 20 with different pore diameters and porosities can be obtained. The oil storage body 20 with larger pore diameter and porosity provides sufficient e-liquid for the heating element 10 to prevent the heating wire from dry burning, and the heating element 10 with smaller pore diameter and porosity smoothly guides the atomized e-liquid and effectively prevents oil leakage.

[0059] Furthermore, the length of the second ceramic block 201 is 1 to 2 times that of the first ceramic block 101, the width of the second ceramic block 201 is 1 to 2 times that of the first ceramic block 101, and the thickness of the second ceramic block 201 is 0.1 to 10 mm. If the oil storage body 20 is too thin or smaller than the heating element 10, it will lead to insufficient oil supply. If the oil storage body 20 is too thick or much larger than the heating element 10, it will cause oil leakage.

[0060] Furthermore, the second ceramic block 201 is in a strip shape (such as Figure 9 and Figure 10 ), a groove shape (such as Figure 11 and Figure 12 ), a square tube shape (such as Figure 13 and Figure 14 ), a bowl shape (such as Figure 3 and Figure 4 ), a circular tube shape (such as Figure 15 and Figure 16 ), or a semi-circular tube shape (such as Figure 17 and Figure 18 ). Preferably, the second ceramic block 201 is in a groove shape, a bowl shape or a semi-circular tube shape, which has a larger area in contact with the e-liquid and makes the e-liquid atomization effect better.

[0061] In the preparation process of separately forming the heating element 10 and the oil storage body 20, only the components of the oil storage body 20 part need to be replaced on the mold to produce the oil storage body 20 with different shapes, so as to obtain atomization cores with different shapes, without the need to open a separate mold, which can not only meet the actual needs but also save costs.

[0062] Figure 19 is the preparation method of the electronic cigarette atomization core according to the first embodiment of the present invention. The preparation method includes:

[0063] Step S101: Prepare the first ceramic block feedstock and the second ceramic block feedstock respectively according to the first ceramic block formula and the second ceramic block formula.

[0064] In step S101, the first ceramic block formulation and the second ceramic block formulation may be the same or different. In this embodiment, the formulations of the two are the same. Specifically, the first ceramic block formulation and the second ceramic block formulation each include the following components according to a mass fraction ratio: ceramic powder: 30-90%, paraffin wax: 10-40%, glass powder: 5-80%, pore former: 5-60%, modifier: 0-10%. Preferably, ceramic powder: 40-70%, paraffin wax: 20-30%, glass powder: 10-40%, pore former: 20-40%, modifier: 0.1-5%.

[0065] Further, the ceramic powder includes one or a combination of two or more of diatomite, fly ash, aluminum nitride, silicon nitride, and zirconia.

[0066] Further, the pore former includes an organic pore former and an inorganic pore former. Among them, the organic pore former includes: PMMA, PS, PP, PE, PV, PC, PVA, PVB, PVC, PVD, flour, starch, corn flour, soybean flour, etc. Preferably, the organic pore former includes: PS, starch, flour. The inorganic pore former includes: carbon powder, charcoal powder, carbonate, nitrate, ammonium salt, etc. Preferably, the inorganic pore former includes: charcoal powder, carbonate. The particle size of the pore former is: 5-500 μm. Preferably, the particle size of the pore former is: 10-100 μm. More preferably, the particle size of the pore former is: 40-60 μm.

[0067] Further, the modifier includes one of stearic acid, oleic acid, and edible oil.

[0068] In one embodiment, step S101 is specifically: weighing and proportioning the ceramic powder, paraffin wax, glass powder, and pore former, then rolling and dry mixing for 5-24 hours to make the ceramic powder, paraffin wax, glass powder, and pore former disperse evenly to obtain a mixture, stirring and heating the mixture to make the paraffin wax reach a molten state, adding the proportioned modifier, and then stirring for 1-10 hours to obtain a ceramic feedstock.

[0069] Step S102: Place the heating mesh in the preset position of the mold, inject the first ceramic block feedstock and the second ceramic block feedstock at the positions of the heating element and the oil storage body in the mold respectively, cool and solidify to form a green body, push out the heating mesh and the green body together, and the heating mesh is embedded in the green body.

[0070] In step S102, in one embodiment, the first ceramic block is formed first, and the second ceramic block is formed later. Specifically, the heating mesh is placed at the preset position in the mold, and the first ceramic block feedstock is injected into the position of the heating element in the mold at a temperature of 40 - 100°C. After the first ceramic block feedstock cools and solidifies, the second ceramic block feedstock is then injected into the oil storage body position of the mold at a temperature of 40 - 100°C. After the second ceramic block feedstock cools and solidifies, a green body is formed, and the heating mesh and the green body are pushed out together, with the heating mesh embedded in the green body. In another embodiment, the second ceramic block is formed first, and the first ceramic block is formed later. Specifically, the heating mesh is placed at the preset position in the mold, and the second ceramic block feedstock is injected into the oil storage body position of the mold at a temperature of 40 - 100°C. After the second ceramic block feedstock cools and solidifies, the first ceramic block feedstock is then injected into the heating element position of the mold at a temperature of 40 - 100°C. After the first ceramic block feedstock cools and solidifies, a green body is formed, and the heating mesh and the green body are pushed out together, with the heating mesh embedded in the green body.

[0071] Step S103: Lay the green body flat on the carrier plate or bury it in the crucible with alumina powder, and sinter it in air at a temperature of 400 - 900°C to obtain the atomization core.

[0072] In step S103, the sintering temperature is preferably 550 - 700°C.

[0073] The preparation method of the electronic cigarette atomization core according to the first embodiment of the present invention can prepare an atomization core with a porosity of 20 - 60% and a pore diameter of 5 - 40μm for the heating element, and a porosity of 40 - 70% and a pore diameter of 10 - 50μm for the oil storage body. As Figures 3 - 18 shown, the porosity and pore diameter of the heating element are smaller than those of the oil storage body, which can effectively supply oil to the heating wire and prevent oil leakage.

[0074] Figure 20 The preparation method of the electronic cigarette atomization core according to the first embodiment of the present invention includes:

[0075] Step S201: Weigh according to the following mass fraction ratios of each component: ceramic powder: 30 - 90%, paraffin: 10 - 40%, glass powder: 5 - 80%, pore former: 5 - 60%, modifier: 0 - 10%. Roll and dry mix the weighed ceramic powder, paraffin, glass powder, and pore former for 5 - 24 hours to make the ceramic powder, paraffin, glass powder, and pore former evenly dispersed to obtain a mixed material. Stir and heat the mixed material to make the paraffin reach the molten state, add the proportioned modifier, and stir for another 1 - 10 hours to obtain the ceramic feedstock.

[0076] Figure 20 The step S201 of Figure 19 Compared with the step S101 of Figure 20 The step S201 ofFigure 19 In step S101, two ceramic feeds are prepared, and the other contents are similar, so they will not be elaborated here one by one.

[0077] Step S202: Place the heating mesh in the preset position of the mold, inject the ceramic feed into the mold at a temperature of 40 - 100 °C. After the feed cools and solidifies, a green body is formed. Then, push out the heating mesh and the green body together, and the heating mesh is embedded in the green body.

[0078] In step S202, the heating element and the oil storage body are prepared from the same material and formed integrally.

[0079] Step S203: Lay the green body flat on the carrier plate or bury it in the sagger with alumina powder, and sinter it in the air at a temperature of 400 - 900 °C to obtain the atomization core.

[0080] Figure 20 Step S203 of Figure 19 is similar to step S103 of

[0081] The preparation method of the electronic cigarette atomization core according to the second embodiment of the present invention prepares an integrally formed atomization core. As shown in Figure 1 and Figure 2 , the heating element and the oil storage body have the same pore diameter and porosity. Compared with the separately formed atomization core prepared by the preparation method of the first embodiment, the requirements for the selection of ceramics and the porcelain-forming process are higher.

[0082] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An e-cigarette atomizing core, characterized in that, it includes: a heating element and an oil storage body connected to the heating element; the heating element includes a first ceramic block and a heating mesh sheet embedded on the first ceramic block, the heating mesh sheet includes electrodes, a heating wire assembly connected between the electrodes and fixed pins, the depth at which the electrodes and the heating wire assembly are embedded in the first ceramic block is 0.5 to 1 times the thickness of the heating mesh sheet, the depth at which the fixed pins are embedded inside the first ceramic block is 0 to 1 times the thickness of the first ceramic block, and the included angle between the fixed pins and the heating wire assembly is 0 to 180°; the length of the first ceramic block is 1 to 2 times that of the heating mesh sheet, and the width of the first ceramic block is 1 to 2 times that of the heating mesh sheet; the shape of the fixed pins includes at least one of: L-shaped, inverted T-shaped, inverted Y-shaped, inverted "dry"-shaped and inverted "one"-shaped; the oil storage body includes a second ceramic block, both the first ceramic block and the second ceramic block are porous ceramics, and the first ceramic block and the second ceramic block are made of the same or different materials.

2. The atomizing core according to claim 1, characterized in that, the porosity of the first ceramic block is 10 to 70%, the pore diameter is 5 to 70 μm, the porosity of the second ceramic block is 20 to 90%, and the pore diameter is 10 to 100 μm.

3. The atomizing core according to claim 1, characterized in that, the length of the second ceramic block is 1 to 2 times that of the first ceramic block, and the width of the second ceramic block is 1 to 2 times that of the first ceramic block.

4. The atomizing core according to claim 1, characterized in that, the second ceramic block is in a long strip shape, groove shape, bowl shape, square tubular shape, circular tubular shape or semi-circular tubular shape.

5. The atomizing core according to claim 1, characterized in that, the electrodes are treated by laser engraving or screen printing silver paste.

6. The atomizing core according to claim 1, characterized in that, the heating wire assembly includes at least one heating wire, and multiple heating wires are connected in parallel.

7. A preparation method of the e-cigarette atomizing core according to any one of claims 1-6, characterized in that, it includes: respectively preparing a first ceramic block feedstock and a second ceramic block feedstock according to a first ceramic block formula and a second ceramic block formula; placing the heating mesh sheet at a preset position in a mold, injecting the first ceramic block feedstock and the second ceramic block feedstock at the positions of the heating element and the oil storage body in the mold respectively, cooling and solidifying to form a green body, and pushing out the heating mesh sheet and the green body together, and the heating mesh sheet is embedded in the green body; laying the green body flat on a firing plate or filling it with alumina powder in a crucible, and sintering in air at a temperature of 400 to 900 °C to obtain the atomizing core.

8. The preparation method according to claim 7, characterized in that, both the first ceramic block formula and the second ceramic block formula include the following components according to a mass fraction ratio: ceramic powder: 30 to 90%, paraffin: 10 to 40%, glass powder: 5 to 80%, pore former: 5 to 60%, modifier: 0 to 10%.

9. A method for preparing an e-cigarette atomization core as described in any one of claims 1-6, characterized in that, it includes: Weigh according to the mass fraction ratio of the following components: ceramic powder: 30-90%, paraffin: 10-40%, glass powder: 5-80%, pore former: 5-60%, modifier: 0-10%. Roll and dry mix the weighed ceramic powder, paraffin, glass powder and pore former for 5-24 hours to obtain a mixed material; stir and heat the mixed material to make the paraffin reach the molten state, add the formulated modifier, and stir for another 1-10 hours to obtain a ceramic feedstock; Place the heating mesh in the preset position of the mold, inject the ceramic feedstock into the mold at a temperature of 40-100°C. After the feedstock cools and solidifies, a green body is formed. Push out the heating mesh and the green body together, and the heating mesh is embedded in the green body; Lay the green body flat on a bearing plate or bury it in a crucible with alumina powder, and sinter it in air at a temperature of 400-900°C to obtain an atomization core.

Images