Atomization core assembly and manufacturing method therefor, and aerosol generation device

Abstract

An atomization core assembly and a manufacturing method therefor, and an aerosol generation device are provided. The atomization core assembly includes a porous liquid guide body for absorbing and transferring a liquid substrate. The porous liquid guide body includes a liquid absorbing surface and an atomization surface opposite to each other in a longitudinal direction. and a side surface connected between the liquid absorbing surface and the atomization surface. The atomization core assembly further includes a heating element used as a resistive heating trajectory and extending on the atomization surface: and conductive leads connected to two ends of the heating element. A part of the conductive lead is embedded in the porous liquid guide body, and another part of the conductive lead extends away from the porous liquid guide body from the side surface in a direction substantially parallel to the atomization surface.

1 . An atomization core assembly comprising:
 a porous liquid guide body configured to absorb and transfer a liquid substrate, wherein the porous liquid guide body has a liquid absorbing surface and an atomization surface opposite to each other, and a side surface connected between the liquid absorbing surface and the atomization surface;   a heating element configured to heat a part of the liquid substrate, wherein the heating element comprises a resistive heating trajectory extending on the atomization surface; and   conductive leads connected to end portions of the heating element, wherein a part of the conductive lead is embedded in the porous liquid guide body, and another part of the conductive lead extends away from the porous liquid guide body from the side surface in a direction substantially parallel to the atomization surface.   
     
     
         2 . The atomization core assembly according to  claim 1 , wherein:
 the conductive leads comprise a first conductive lead and a second conductive lead; and   the first conductive lead and the second conductive lead are led out from a side surface on a same side of the porous liquid guide body.   
     
     
         3 . The atomization core assembly according to  claim 2 , wherein:
 a first lead groove and a second lead groove are provided on the porous liquid guide body;   the first conductive lead is accommodated in the first lead groove; and   the second conductive lead is accommodated in the second lead groove.   
     
     
         4 . The atomization core assembly according to  claim 3 , wherein:
 the heating element further comprises a first electrical connection portion and a second electrical connection portion connected to two ends of the heating trajectory;   the first electrical connection portion is configured to be in contact with at least a part of a surface of the first conductive lead and is configured to fix the first conductive lead; and   the second electrical connection portion is configured to be in contact with at least a part of a surface of the second conductive lead and is configured to fix the second conductive lead.   
     
     
         5 . The atomization core assembly according to  claim 4 , wherein:
 at least a part of the first electrical connection portion is filled into the first lead groove from the atomization surface and is combined around the first conductive lead; and   at least a part of the second electrical connection portion is filled into the second lead groove from the atomization surface and is combined around the second conductive lead.   
     
     
         6 . The atomization core assembly according to  claim 4 , wherein:
 a first groove and a second groove are further provided on the porous liquid guide body;   the first groove is in communication with the first lead groove; and   the second groove is in communication with the second lead groove.   
     
     
         7 . The atomization core assembly according to  claim 6 , wherein:
 a part of the first electrical connection portion is accommodated in the first groove and is configured to fix the first conductive lead; and   a part of the second electrical connection portion is accommodated in the second groove and is configured to fix the second conductive lead.   
     
     
         8 . The atomization core assembly according to  claim 6 , wherein:
 a recess depth of the first groove from the atomization surface is less than a recess depth of the first lead groove; and   a recess depth of the second groove from the atomization surface is less than a recess depth of the second lead groove.   
     
     
         9 . The atomization core assembly according to  claim 3 , wherein the first lead groove and the second lead groove are arranged in parallel. 
     
     
         10 . The atomization core assembly according to  claim 6 , wherein:
 the first groove and the first lead groove are combined to form a T-shaped groove; or   the second groove and the second lead groove are combined to form a T-shaped groove.   
     
     
         11 . The atomization core assembly according to  claim 3 , wherein:
 the porous liquid guide body comprises a main body portion and a boss portion arranged in a thickness direction;   a step is formed between the main body portion and the boss portion; and   the atomization surface is arranged on the boss portion.   
     
     
         12 . The atomization core assembly according to  claim 11 , wherein both the first lead groove and the second lead groove are provided on the boss portion. 
     
     
         13 . A manufacturing method for an atomization core assembly, the method comprising:
 preparing a porous liquid guide body, and forming a recessed first lead groove and a recessed second lead groove on an atomization surface of the porous liquid guide body;   placing a first conductive lead into the first lead groove, and placing a second conductive lead into the second lead groove; and   combining conductive paste with the atomization surface of the porous liquid guide body to form a resistive heating trajectory, filling a part of the conductive paste into the first lead groove and the second lead groove, embedding a part of the first conductive lead and a part of the second conductive lead into the porous liquid guide body through curing, and another part of the first conductive lead and another part of the second conductive lead extend away from the porous liquid guide body in a direction substantially parallel to the atomization surface.   
     
     
         14 . The manufacturing method for an atomization core assembly according to  claim 13 , wherein:
 a first groove and a second groove are provided on the porous liquid guide body;   the first groove is in communication with the first lead groove, and the second groove is in communication with the second lead groove; and   a part of the conductive paste is filled into the first groove and the second groove.   
     
     
         15 . The manufacturing method for an atomization core assembly according to  claim 14 , wherein:
 a width of a groove opening of the first lead groove and a width of a groove opening of the second lead groove located on the atomization surface is greater than a width of a groove bottom; or a width of a groove opening of the first groove and a width of a groove opening of the second groove located on the atomization surface is greater than a width of a groove bottom.   
     
     
         16 . An aerosol generation device comprising:
 a housing and a liquid storage cavity located in the housing, wherein the liquid storage cavity is configured to store a liquid substrate; and   the atomization core assembly according to  claim 1  arranged in the housing, wherein the atomization core assembly is configured to atomize the liquid substrate to generate an aerosol; wherein the atomization core assembly comprises an atomization surface, and an extending direction of the atomization surface is arranged in parallel with a longitudinal direction of the housing.