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CN-116406825-B - Porous body, atomizer, and electronic atomizing device

CN116406825BCN 116406825 BCN116406825 BCN 116406825BCN-116406825-B

Abstract

The application discloses a porous body, an atomizer and an electronic atomization device, wherein the atomizer comprises a liquid storage cavity for storing a liquid matrix, a porous body in fluid communication with the liquid storage cavity for receiving the liquid matrix, a heating element combined on the porous body for heating at least part of the liquid matrix in the porous body to generate aerosol, and the volume of micropores with the pore diameter of more than 30 mu m in the porous body accounts for more than 40% of the volume of all micropores in the porous body. The above-mentioned atomizer uses a porous body having a pore diameter larger than that of a conventional micropore, and aerosol particles having a larger particle diameter than that of aerosol generated by atomization are easily attached to the taste bud receptor of the oral cavity, which is advantageous in improving taste sensation.

Inventors

  • CHEN MING
  • Lei baoling
  • XU ZHONGLI
  • LI YONGHAI

Assignees

  • 深圳市合元科技有限公司

Dates

Publication Date
20260505
Application Date
20211231

Claims (16)

  1. 1. An atomizer for the use in a spray gun, characterized by comprising the following steps: A liquid storage chamber for storing a liquid matrix; a porous body in fluid communication with the reservoir to receive a liquid matrix; A heating element coupled to the porous body to heat at least a portion of the liquid matrix within the porous body to generate an aerosol; The pore diameter of the micropores in the porous body ranges from 1 mu m to 300 mu m, the average pore diameter of the micropores in the porous body ranges from 35 mu m to 70 mu m, the volume of the micropores with the pore diameter of more than 30 mu m in the porous body accounts for more than 60% of the volume of all micropores in the porous body, the volume of the micropores with the pore diameter of more than 30 mu m and less than 65 mu m in the porous body accounts for more than 50% of the volume of all micropores in the porous body, and the volume of the micropores with the pore diameter of more than 10 mu m and less than 30 mu m in the porous body accounts for 5-20% of the volume of all micropores in the porous body.
  2. 2. The nebulizer of claim 1, wherein the volume of micropores with a pore size greater than 70 μm in the porous body is 15% or more of the volume of all micropores in the porous body.
  3. 3. The nebulizer of claim 1 or 2, wherein the volume of micropores with a pore size greater than 100 μm in the porous body is 2% -10% of the volume of all micropores in the porous body.
  4. 4. The nebulizer of claim 1 or 2, wherein the volume of micropores in the porous body having a pore size of less than 30 μm accounts for 30% or less of the volume of all micropores in the porous body.
  5. 5. The nebulizer of claim 1 or 2, wherein the volume of micropores with a pore size of less than 10 μm in the porous body is 5% or less of the volume of all micropores in the porous body.
  6. 6. The nebulizer of claim 1 or 2, wherein the porous body has a porosity of 35% to 75%.
  7. 7. The nebulizer of claim 1 or 2, wherein the porous body has a water absorption of 30% -70%.
  8. 8. The atomizer of claim 1 or 2, wherein the proportion of substantially spherical micropores of said porous body is not less than 30% of the total micropores.
  9. 9. The nebulizer of claim 1 or 2, wherein the porous body is rigid.
  10. 10. The nebulizer of claim 1 or 2, wherein the porous body is a porous ceramic body.
  11. 11. The nebulizer of claim 1 or 2, wherein the heating element is a conductive track printed, deposited on the porous body.
  12. 12. The atomizer of claim 1 or 2 wherein said porous body has a planar elongated atomizing face, said heating element being a planar heating element bonded to said atomizing face, said heating element having an elongated dimension along a length of said atomizing face that is greater than 75% of a length dimension of said atomizing face.
  13. 13. The nebulizer of claim 1 or 2, wherein the porous body further comprises a liquid channel extending lengthwise through the porous body; At least a portion of the inner surface of the liquid channel is configured as a wicking surface in fluid communication with the liquid storage chamber for wicking a liquid matrix.
  14. 14. The atomizer of claim 1 or 2 wherein said porous body has first and second opposed surfaces, wherein, The first surface is configured as a liquid absorbing surface in fluid communication with the liquid storage cavity and is used for absorbing liquid matrix, the second surface is configured as an atomizing surface, the heating element is combined with the second surface, and the distance between the first surface and the second surface is 1-5 mm.
  15. 15. An electronic atomising device comprising an atomiser for atomising a liquid substrate to produce an aerosol, and a power supply mechanism for supplying power to the atomiser, characterised in that the atomiser comprises an atomiser according to any one of claims 1 to 14.
  16. 16. A porous body for an atomizer, characterized in that the average pore diameter of micropores in the porous body is 35-70 [ mu ] m, the pore diameter of micropores in the porous body ranges from 1-300 [ mu ] m, the volume of micropores with a pore diameter of more than 30 [ mu ] m in the porous body accounts for 60% or more of the volume of all micropores of the porous body, the volume of micropores with a pore diameter of more than 30 [ mu ] m and less than 65 [ mu ] m in the porous body accounts for 50% or more of the volume of all micropores of the porous body, and the volume of micropores with a pore diameter of more than 10 [ mu ] m and less than 30 [ mu ] m in the porous body accounts for 5-20% of the volume of all micropores of the porous body.

Description

Porous body, atomizer, and electronic atomizing device Technical Field The embodiment of the application relates to the technical field of electronic atomization, in particular to a porous body, an atomizer and an electronic atomization device. Background Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release the compounds without burning. An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are aerosol provision articles, for example, so-called electronic atomizing devices. These devices typically contain a liquid that is heated to vaporize it, producing an inhalable aerosol. The liquid may comprise nicotine and/or a fragrance and/or an aerosol generating substance (e.g. glycerol). Known e-cigarette devices typically do not contain a fragrance other than the fragrance in the liquid. Disclosure of Invention One embodiment of the present application provides an atomizer, comprising: A liquid storage chamber for storing a liquid matrix; a porous body in fluid communication with the reservoir to receive a liquid matrix; A heating element coupled to the porous body to heat at least a portion of the liquid matrix within the porous body to generate an aerosol; the volume of micropores with the pore diameter of more than 30 μm in the porous body accounts for more than 40% of the volume of all micropores of the porous body. In a preferred embodiment, the micropores present in the porous body have an average pore size of from 35 μm to 70 μm. In a preferred embodiment, the pores in the porous body have a pore size in the range of 1 μm to 300. Mu.m. In a preferred embodiment, the volume of micropores of the porous body having a pore diameter of between 30 μm and 65 μm accounts for 50% or more of the volume of all micropores of the porous body. In a preferred embodiment, the volume of micropores of the porous body having a pore diameter of between 30 μm and 100 μm accounts for 60% or more of the volume of all micropores of the porous body. In a preferred embodiment, the volume of micropores with a pore size greater than 70 μm in the porous body is 15% or more of the volume of all micropores in the porous body. In a preferred implementation, the volume of micropores with the pore diameter greater than 100 μm in the porous body accounts for 2% -10% of the volume of all micropores in the porous body. In a preferred embodiment, the volume of micropores with a pore diameter of less than 30 μm in the porous body accounts for 30% or less of the volume of all micropores in the porous body. In a preferred embodiment, the volume of micropores with a pore diameter of 10-30 μm in the porous body accounts for 5-20% of the volume of all micropores in the porous body. In a preferred embodiment, the volume of micropores with a pore size of less than 10 μm in the porous body is 5% or less of the volume of all micropores in the porous body. In a preferred embodiment, the porosity of the porous body is 35% -75%. In a preferred embodiment, the porous body has a water absorption of 30% to 70%. In a more preferred embodiment, the number of substantially spherical micropores in the porous body 30/30a/30b is not less than 30% of the total number of micropores. I.e., the proportion of particles in the pore-forming agent that are substantially spherical is not less than 30% of the total particles in the preparation, is advantageous in promoting uniform delivery of the liquid matrix. The pore-forming agent or micropore which is basically in a round sphere shape is pore-forming agent particles or micropore with sphericity more than 0.8. Wherein the term "sphericity" is a parameter characterizing the morphology of an object, such as the above particle or pore, which can be calculated by the ratio of the surface area of a sphere to the surface area of the particle or pore of the same volume. The sphericity of the standard sphere is equal to 1, the sphericity of other objects is less than 1, and the sphericity of particles or holes which are closer to the sphere in appearance is closer to 1. In a preferred embodiment, the porous body is rigid. In a preferred embodiment, the porous body is a porous ceramic body. In a preferred implementation, the heating element is a conductive track printed, deposited on the porous body. In a preferred embodiment, the porous body has a planar extended atomizing surface, and the heating element is a planar heating element bonded to the atomizing surface, and the heating element has an extension along the length of the atomizing surface that is greater than 75% of the length of the atomizing surface. In a preferred embodiment, the porous body further comprises a liquid channel or gr