Atomizer, electronic atomization device, and atomization assembly for atomizer

Abstract

An atomizer, an electronic atomization device, and an atomization assembly for an atomizer are provided. The atomizer includes: a liquid storage cavity, configured to store a liquid substrate; and a porous body, including a first surface, a second surface, and a third surface, where the first surface is constructed to be in fluid communication with the liquid storage cavity, for at least part of the liquid substrate to enter the porous body via the first surface; a coating layer that covers the second surface is formed on the second surface; the coating layer is combined with a heating element to heat the at least part of the liquid substrate in the porous body to generate an aerosol; and the third surface is an exposed surface, for releasing the aerosol. Different surfaces of the porous body absorb the liquid substrate and release the aerosol respectively.

1 . An atomizer, comprising:
 a liquid storage cavity, configured to store a liquid substrate; and   a porous body, comprising a first surface, a second surface, and a third surface, wherein   the first surface is constructed to be in fluid communication with the liquid storage cavity, for at least part of the liquid substrate to enter the porous body via the first surface;   a coating layer that covers the second surface is formed on the second surface; the coating layer is combined with a heating element to heat the at least part of the liquid substrate in the porous body to generate an aerosol; and   the third surface is an exposed surface, for releasing the aerosol.   
     
     
         2 . The atomizer according to  claim 1 , wherein the porous body comprises a porous ceramic. 
     
     
         3 . The atomizer according to  claim 1 , wherein the coating layer comprises a dense ceramic, glaze, a metal or an inorganic oxide or an inorganic nitride. 
     
     
         4 . (canceled) 
     
     
         5 . The atomizer according to  claim 1 , wherein the heating element is a heating element printed or deposited on the coating layer; or
 wherein the heating element is a planar heating element: or   wherein the heating element comprises a resistance heating trajectory formed on the coating layer; or   wherein the heating element is an inductive heating element penetrable by a changing magnetic field to generate heat.   
     
     
         6 . (canceled) 
     
     
         7 . (canceled) 
     
     
         8 . (canceled) 
     
     
         9 . The atomizer according to  claim 1 , wherein the third surface is arranged away from the coating layer. 
     
     
         10 . The atomizer according to  claim 9 , wherein a projection of the third surface on a surface of the coating layer covers the heating element. 
     
     
         11 . The atomizer according to  claim 9 , wherein a distance between the third surface and the first surface gradually decreases along a direction of the third surface away from the coating layer. 
     
     
         12 . The atomizer according to  claim 1 , wherein the first surface is constructed to extend along a circumferential direction of the porous body. 
     
     
         13 . The atomizer according to  claim 1 , wherein there is an angle between the first surface and the second surface. 
     
     
         14 . The atomizer according to  claim 1 , wherein the first surface at least partially extends between the second surface and the third surface. 
     
     
         15 . The atomizer according to  claim 1 , wherein the third surface is constructed to be obliquely arranged along a direction close to the second surface. 
     
     
         16 . The atomizer according to  claim 1 , wherein the third surface is substantially parallel to the second surface. 
     
     
         17 . The atomizer according to  claim 1 , wherein a distance between the third surface along an axial direction of the porous body and the second surface ranges from 0.01 mm to 0.5 mm; or a minimum distance between the third surface along an axial direction of the porous body and the second surface is 0.01 mm. 
     
     
         18 . (canceled) 
     
     
         19 . The atomizer according to  claim 1 , wherein the third surface is at least partially constructed as a curved surface. 
     
     
         20 . The atomizer according to  claim 1 , wherein the third surface is at least partially defined with a concave cavity. 
     
     
         21 . The atomizer according to  claim 20 , wherein the concave cavity is constructed to accommodate at least part of an atomization chamber of the aerosol. 
     
     
         22 . The atomizer according to  claim 20 , wherein the concave cavity is separated from the liquid storage cavity. 
     
     
         23 . The atomizer according to  claim 1 , wherein the coating layer is configured to prevent the liquid substrate or the aerosol from leaving the second surface. 
     
     
         24 . An electronic atomization device, comprising an atomizer configured to atomize a liquid substrate to generate an aerosol and a power supply assembly configured to supply power to the atomizer, wherein the atomizer comprises the atomizer according to  claim 1 . 
     
     
         25 . An atomization assembly for an atomizer, comprising:
 a porous body, comprising a first surface, a second surface, and a third surface, wherein the second surface and the third surface are arranged oppositely along an axial direction of the porous body, and the first surface is used to receive a liquid substrate, for the liquid substrate to enter the porous body;   a coating layer, covering the second surface; and   a heating element, combined on the coating layer, wherein   the third surface is an exposed surface, for releasing an aerosol.