Atomizing core, atomizer, and electronic atomization device

Abstract

An atomizing core includes: a substrate having an atomization surface; a heating member arranged on the atomization surface, a region of an orthographic projection of the heating member on the atomization surface forming a first atomization region, the atomization surface including a second atomization region arranged around a periphery of the first atomization region; and a blocking member arranged in the second atomization region for blocking an aerosol-forming medium from being atomized in the second atomization region.

What is claimed is: 
     
         1 . An atomizing core, comprising:
 a substrate comprising an atomization surface;   a heating member arranged on the atomization surface, a region of an orthographic projection of the heating member on the atomization surface forming a first atomization region, the atomization surface comprising a second atomization region arranged around a periphery of the first atomization region; and   a blocking member arranged in the second atomization region and configured to block an aerosol-forming medium from being atomized in the second atomization region.   
     
     
         2 . The atomizing core of  claim 1 , wherein surfaces of the substrate other than the atomization surface are exposed to an outer side of the atomizing core. 
     
     
         3 . The atomizing core of  claim 1 , wherein the blocking member comprises a dense member. 
     
     
         4 . The atomizing core of  claim 1 , wherein the heating member comprises a porous heating member,
 wherein the blocking member comprises a porous blocking member, and   wherein a porosity of the heating member is greater than a porosity of the blocking member.   
     
     
         5 . The atomizing core of  claim 4 , wherein the porosity of the blocking member is less than 20%, and
 wherein the porosity of the heating member ranges from 20% to 70%.   
     
     
         6 . The atomizing core of  claim 1 , wherein the heating member and the blocking member are integrally formed. 
     
     
         7 . The atomizing core of  claim 1 , wherein the second atomization region comprises a first boundary, the first boundary being not adjacent to the first atomization region,
 wherein the orthographic projection of the blocking member on the second atomization region forms a projection region, and   wherein the first boundary and the projection region are spaced apart from each other.   
     
     
         8 . The atomizing core of  claim 1 , wherein the blocking member and the heating member are spaced apart from each other. 
     
     
         9 . The atomizing core of  claim 8 , wherein the heating member comprises a heating element having a curved shape,
 wherein the blocking member is arranged in a bend of the heating element, and   wherein the blocking member is spaced apart from the heating element along a peripheral direction thereof.   
     
     
         10 . An atomizer, comprising:
 the atomizing core of  claim 1 .   
     
     
         11 . The atomizer of  claim 10 , the substrate comprises a liquid absorbing surface,
 wherein the atomizer further comprises a sealing member, and   wherein the sealing member covers surfaces of the substrate other than the liquid absorbing surface and the atomization surface.   
     
     
         12 . An electronic atomization device, comprising:
 the atomizer of  claim 10 .