A multi-core ceramic atomization core

Abstract

The invention discloses a multi-core ceramic atomizer core, on which a plurality of oil-conducting atomizer cores having oil-conducting and atomizing functions are distributed on a support body (110) of the ceramic atomizer core. The multi-core ceramic atomizer core of the invention comprehensively improves the structural strength, atomizing performance and oil-conducting capacity of the ceramic atomizer core.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco atomization, and in particular relates to a multi-core ceramic atomization core. Background Art

[0002] The atomizer core of an electronic cigarette needs to take into account the main functions of oil conduction, atomization, and support. The atomizer core needs to meet the requirements of strong oil conduction, high thermal conductivity of atomization, and stability of the support function. At present, the structure of the atomizer core of electronic cigarettes used on the market is mostly a ceramic atomizer chip with uniform material; for a single ceramic atomizer core with uniform material, these three functional requirements are mutually constrained. The ceramic structure with strong oil conduction has low strength, and improving the structural strength will reduce the oil conduction performance of the ceramic; effectively atomizing the smoke oil requires the ceramic matrix to have high thermal conductivity, and for the oil conduction function and structural support function, a low thermal conductivity ceramic matrix is ​​required to ensure the stability of oil conduction when the atomization temperature rises. Therefore, it is difficult for a ceramic atomizer chip with uniform material to take into account the above three functions at the same time, resulting in poor comprehensive performance of the ceramic atomizer core of the prior art, such as uneven atomization or leakage of atomized substances due to insufficient atomization, and it is difficult to further improve its comprehensive performance.

[0003] The present invention has been proposed to solve the above-mentioned problems. Summary of the invention

[0004] The invention discloses a multi-core ceramic atomizer core. The oil conducting performance, atomization performance and supporting function of the multi-core ceramic atomizer core of the invention are significantly improved.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention discloses a multi-core ceramic atomizer core. A plurality of oil-conducting atomizer cores having oil-conducting and atomizing functions are distributed on a support body 110 of the ceramic atomizer core.

[0007] Preferably, the oil-conducting atomization core comprises a liquid-conducting body 120 , an atomizing body 130 and a heating wire 140 ; ​​the liquid-conducting body 120 is wrapped around the periphery of the atomizing body 130 , the atomizing body 130 forms an airway 131 , and the heating wire 140 is arranged in the airway 131 .

[0008] Preferably, the liquid guide 120 and the atomizer 130 are cylindrical, regular polygonal cylindrical, elliptical cylindrical or special-shaped; the shape of the oil-conducting atomizer core can be designed as needed, in particular, it can be a special-shaped shape, such as a U-shaped, "concave" or semi-"concave" shape; the oil-conducting atomizer core can run through the entire support body 110, such as Figure 1 and Figure 2 Or the oil-conducting atomizing core is barrel-shaped on the support body 110, that is, it does not penetrate the support body 110, and has the bottom of the support body 110, such as Figure 6 .

[0009] Preferably, the heating wires 140 on all the oil-conducting atomization cores are connected in series or in parallel.

[0010] Preferably, the support body 110 has a porosity range of 20%-50%, a structural strength of 1.5kg-5kg, and a thermal conductivity of 0.1-50W / (m·K); the liquid-conducting body 120 has a porosity range of 50%-90%, a structural strength of 0.5kg-3kg, a thermal conductivity of 0.1-50W / (m·K), and a wall thickness range of 0.1-5mm; the atomizing body 130 has a porosity range of 40%-80%, a structural strength of 0.5kg-3kg, a thermal conductivity of 30-300W / (m·K), and a wall thickness range of 0.5-10mm.

[0011] Preferably, the material of the support body 110 is mainly aluminum oxide and zirconium oxide, and the rest are the residues of pore-forming material and binder material; the material of the liquid-conducting body 120 is aluminum oxide, and the rest are the residues of pore-forming material and binder material; the material of the atomizing body 130 is aluminum oxide and silicon nitride, and the rest are the residues of pore-forming material and binder material.

[0012] Beneficial effects of the present invention:

[0013] 1. Compared with the atomizer core of uniform material in the prior art, the multi-core ceramic atomizer core of the present invention comprehensively improves the structural strength, atomization performance and oil conduction capacity of the ceramic atomizer core by arranging multiple oil-conducting atomization cores with oil-conducting and atomization functions on the support body of the atomizer core; it solves the problem that the ceramic atomizer chip of uniform material in the prior art is difficult to simultaneously take into account the three functions of strong oil conduction, good thermal conductivity and stable supporting function.

[0014] 2. The oil-conducting atomizing core of the multi-core ceramic atomizing core of the present invention can penetrate the entire support body 110, such as Figure 1 and Figure 2 Or the oil-conducting atomizing core is barrel-shaped on the support body 110, that is, it does not penetrate the support body 110, and has the bottom of the support body 110, such as Figure 6 . It can be used in different smoking utensils according to actual needs.

[0015] 3. The multi-core ceramic atomization core of the present invention may include multiple oil-conducting atomization cores including a liquid-conducting body 120 and an atomizing body 130, and may include multiple heating wires 140 for atomization. Multiple heating wires 140 for atomization may be connected in parallel or in series, which can generate more smoke, achieve a better atomization effect, and better satisfy the consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a vertical cross-sectional view of the multi-core ceramic atomizer core of the present invention having only one oil-conducting atomizer core.

[0017] Figure 2 It is an exploded view of the ceramic atomizer core of the present invention having three oil-conducting atomizer cores in a cylindrical shape; the oil-conducting atomizer core is transparent from top to bottom on the chip of the support body.

[0018] Figure 3 It is a horizontal plan view of the multi-core ceramic atomizer core of the present invention having three oil-conducting atomizer cores in a cylindrical shape.

[0019] Figure 4 Schematic diagram of the steps for preparing the multi-core ceramic atomizer core of the present invention using 3D printing technology.

[0020] Figure 5 It is an exploded view of the cylindrical multi-core ceramic atomizer core of the present invention having three oil-conducting atomizer cores which are quadrilaterals.

[0021] Figure 6 It is a vertical cross-sectional view of a cylindrical multi-core ceramic atomizer core having three oil-conducting atomization cores in the form of quadrilaterals of the present invention. The oil-conducting atomization core does not penetrate the support body and has a bottom of the support body; that is, the oil-conducting atomization core is not transparent from top to bottom on the chip of the support body.

[0022] The reference numerals in the drawings are: 110, support body; 120, liquid-conducting body; 130, atomizing body; 131, airway; 140, heating wire. DETAILED DESCRIPTION

[0023] The content of the present invention is further explained below in conjunction with the drawings and embodiments, but the protection scope of the present invention is not limited thereto. Example

[0024] A multi-core ceramic atomizer core of the present invention has a plurality of oil-conducting atomizer cores including a liquid-conducting liquid 120 and an atomizing body (130) distributed on a support body 110 of the ceramic atomizer core. Figure 1 The vertical cross-section diagram of an oil-conducting atomizing core is shown, in which the liquid-conducting liquid 120 is wrapped around the periphery of the atomizing body 130, and the atomizing body 130 forms an air channel 131, and a heating wire 140 for atomization is arranged in the air channel 131; the liquid-conducting liquid 120 and the atomizing body 130 are both cylindrical.

[0025] like Figure 2 and Figure 3The ceramic atomizer core shown has three oil-conducting atomizer cores, all of which are cylindrical and run through the entire support body, that is, the oil-conducting atomizer core is transparent from top to bottom on the chip of the support body; the heating wire 140 is connected in series; the porosity range of the support body 110 is between 23% and 28%, the average structural strength is 4.6 kg, and its thermal conductivity is 9.2 W / (m·K); the porosity range of the liquid-conducting body 120 is 56%-62%, and the average structural strength is 1.9kg, its thermal conductivity is 9.5W / (m·K), and its average wall thickness is 2.4mm; the porosity range of the atomizer 130 is 43%-48%, the average structural strength range is 2.1kg, its thermal conductivity is 135W / (m·K), and its average wall thickness range is 1.8mm; the material of the support body 110 is aluminum oxide and zirconium oxide; the material of the liquid conductor 120 is aluminum oxide; the material of the atomizer 130 is aluminum oxide and silicon nitride.

[0026] The preparation methods of the above three ceramic atomizer cores of the oil-conducting atomizer core are as follows: Figure 4 As shown, the following steps are included:

[0027] ① After winding, fix the heating wire 140 for atomization on the workbench of the 3D printer;

[0028] ② respectively preparing the raw materials required for forming the support body 110, the liquid guide 120 and the atomizer 130 of the multi-core ceramic atomizer core;

[0029] Among them, the raw materials required for forming the support body 110 are: 50 parts by weight of a mixture of aluminum oxide powder and zirconium oxide powder; 30 parts by weight of a mixture of polymethyl methacrylate and sucrose, wherein the mass ratio of polymethyl methacrylate to sucrose is 1:1, and the mixture of polymethyl methacrylate and sucrose is a pore-forming agent material; 10 parts by weight of a mixture of paraffin, low-temperature glass and dibutyl phthalate, wherein the mass ratio of paraffin, low-temperature glass and dibutyl phthalate is 1:2:1, and paraffin, low-temperature glass and dibutyl phthalate are binder materials; 4 parts by weight of a catalyst, wherein the catalyst is high-temperature glass; 6 parts by weight of other additives, wherein the other additives are a mixture of diatomaceous earth, clay and aluminum oxide; the above materials are mixed evenly and ground into a powder with a particle size of 100 microns; the obtained powder is then mixed with water to prepare a mixed slurry with a certain fluidity; wherein the weight ratio of the powder to water is 1:1;

[0030] The raw materials required for forming the liquid-conducting agent 120 are: 68 parts by weight of alumina powder; 20 parts by weight of a mixture of polystyrene balls and starch, wherein the mass ratio of polystyrene balls to starch is 1:1, and the mixture of polystyrene balls and starch is a pore-forming agent material; 5 parts by weight of a mixture of paraffin wax, starch and low-temperature glass, wherein the mass ratio of paraffin wax, starch and low-temperature glass is 1:1:1, and the mixture of paraffin wax, starch and low-temperature glass is a binder material; 2 parts by weight of a catalyst, wherein the catalyst is a mixture of high-temperature glass and talc, wherein the mass ratio of high-temperature glass to talc is 1:1; 5 parts by weight of other additives, wherein the other additives are a mixture of diatomaceous earth and clay; the above materials are mixed evenly and ground into a powder with a particle size of 100 microns; the obtained powder is then mixed with water to prepare a mixed slurry with a certain fluidity; wherein the weight ratio of the powder to water is 1:1;

[0031] The raw materials required for forming the atomizer 130 are: 60 parts by weight of a mixture of aluminum oxide powder and silicon nitride powder; 30 parts by weight of a mixture of starch and carbon powder, wherein the ratio of starch to carbon powder is 1:1, and the mixture of starch and carbon powder is a pore-forming agent material; 2 parts by weight of a mixture of carboxymethyl cellulose, paraffin and low-temperature glass, wherein the ratio of carboxymethyl cellulose, paraffin and low-temperature glass is 1:1:1, and the mixture of carboxymethyl cellulose, paraffin and low-temperature glass is a binder material; 1 part by weight of a catalyst, wherein the catalyst is high-temperature glass and white feldspar, and the mass ratio thereof is 1:1; 7 parts by weight of other additives, wherein the other additives are a mixture of diatomaceous earth, clay and aluminum oxide; the above materials are mixed evenly and then ground into a powder with a particle size of 100 microns; the obtained powder is then mixed with water to prepare a mixed slurry with a certain fluidity; wherein the weight ratio of the powder to water is 1:1;

[0032] ③ Place the raw materials required for the support body 110, the liquid guide 120 and the atomizer 130 in step ② into the raw material receiving area of ​​the 3D printer respectively; input the 3D structural models of the support body 110, the liquid guide 120 and the atomizer 130 into the 3D printer;

[0033] ④ The nozzle of the 3D printer continuously ejects materials to form the green embryo of the multi-core ceramic atomization core layer by layer;

[0034] ⑤ The green embryo obtained in step ④ is calcined and sintered to obtain the multi-core ceramic atomizer core; the calcination and sintering steps are: placing the green embryo in a high-temperature furnace, first heating it to 200°C and keeping it warm for 2 hours; then heating it to 700°C and keeping it warm for 2 hours; finally, raising the furnace temperature to 1200°C and sintering it for 2 hours; cooling it to room temperature to obtain the multi-core ceramic atomizer core. Example

[0035] like Figure 5 and Figure 6The three oil-conducting atomization cores of the ceramic atomizer cores shown are all quadrilateral cylindrical cores, and the oil-conducting atomizer cores do not penetrate the entire support body, that is, the oil-conducting atomizer cores are not transparent from top to bottom on the chip of the support body, and are sealed at the bottom of the support body 110; the heating wires 140 are connected in parallel.

[0036] The rest is the same as in Example 1.

[0037] The three ceramic atomizer cores of the oil-conducting atomizer cores obtained in Examples 1-2 were compared with a control sample of a ceramic atomizer core of the prior art (purchased from the market), and the results are shown in Table 1 below.

[0038]

[0039] It can be seen from the data in Table 1 that the multi-core ceramic atomizer core of the present invention has significantly improved performance compared with the existing ceramic atomizer cores on the market, and the structural strength, atomization performance and oil conduction capacity are all significantly improved.

[0040] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art 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. A multi-core ceramic atomizer core, It is characterized in that A plurality of oil-conducting atomizing cores having oil-conducting and atomizing functions are distributed on a support body (110) of a ceramic atomizing core; the oil-conducting atomizing core comprises a liquid-conducting body (120), an atomizing body (130), and a heating wire (140); the liquid-conducting body (120) is wrapped around the periphery of the atomizing body (130), the atomizing body (130) forms an airway (131), and the heating wire (140) is arranged in the airway (131); The preparation method of the multi-core ceramic atomizer core comprises the following steps: ① After the heating wire (140) for atomization is wound, it is fixed on the workbench of the 3D printer; ② respectively preparing the raw materials required for forming the support body (110), the liquid guide body (120) and the atomizing body (130) of the multi-core ceramic atomizing core; ③ The raw materials required for the support body (110), the liquid guiding body (120) and the atomizing body (130) of step ② are respectively placed in the raw material receiving area of ​​the 3D printer; the 3D structural models of the support body (110), the liquid guiding body (120) and the atomizing body (130) are input into the 3D printer; ④ The nozzle of the 3D printer continuously ejects materials to form the green embryo of the multi-core ceramic atomization core layer by layer; ⑤ The green embryo obtained in step ④ is calcined and sintered to obtain the multi-core ceramic atomizer core; the calcination and sintering steps are: placing the green embryo in a high-temperature furnace, first heating it to 200°C and keeping it warm for 2 hours; then heating it to 700°C and keeping it warm for 2 hours; finally, raising the furnace temperature to 1200°C and sintering it for 2 hours; cooling it to room temperature to obtain the multi-core ceramic atomizer core.

2. The multi-core ceramic atomizer core according to claim 1, It is characterized in that The liquid-conducting body (120) and the atomizing body (130) are cylindrical, regular polygonal cylindrical, elliptical cylindrical, or irregularly shaped.

3. The multi-core ceramic atomizer core according to claim 1, It is characterized in that The heating wires (140) on all the oil-conducting atomization cores are connected in series or in parallel.

4. The multi-core ceramic atomizer core according to claim 1, It is characterized in that The support body (110) has a porosity range of 20%-50%, a structural strength of 1.5kg-5kg, and a thermal conductivity of 0.1-50W / (m·K); the liquid-conducting body (120) has a porosity range of 50%-90%, a structural strength of 0.5kg-3kg, a thermal conductivity of 0.1-50W / (m·K), and a wall thickness range of 0.1-5mm; the atomizing body (130) has a porosity range of 40%-80%, a structural strength of 0.5kg-3kg, a thermal conductivity of 30-300W / (m·K), and a wall thickness range of 0.5-10mm.

5. The multi-core ceramic atomizing core according to claim 3, It is characterized in that The material of the support body (110) is aluminum oxide and zirconium oxide; the material of the liquid conducting body (120) is aluminum oxide; and the material of the atomizing body (130) is aluminum oxide and silicon nitride.

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