Electronic Cigarette Atomization Assembly and Manufacturing Method Therefor

Abstract

An electronic cigarette atomization assembly includes a porous matrix for conducting cigarette liquid and a heating layer for heating and atomizing the cigarette liquid. The heating layer is disposed on the porous matrix, and connecting portions electrically connected to an electronic cigarette power supply are disposed at two ends of the heating layer, respectively. According to the atomization assembly of the invention, the heating layer and the connecting portions are disposed on the porous matrix, and compared with heating wires in the prior art, the contact area between the heating layer and the porous matrix is larger, so that the atomization area is larger, and the atomization effect is improved. The atomization assembly is simple in structure, the production process is simple, modular, mass and automatic production of the atomization assemblies is realized, the production efficiency is high, and the consistency of the manufactured atomization assemblies is good.

1 . An electronic cigarette atomization assembly, comprising a porous matrix for conducting cigarette liquid and a heating layer for heating and atomizing the cigarette liquid;
 wherein the heating layer is disposed on the porous matrix, and connecting portions configured to be electrically connected to an electronic cigarette power supply are provided at two ends of the heating layer, respectively.   
     
     
         2 . The electronic cigarette atomization assembly according to  claim 1 , wherein the heating layer is prepared from electronic paste, carbon powder or metal powder that is disposed on a surface or inside of the porous matrix by at least one of printing, coating, spraying, soaking, vacuum plating and sandwiching. 
     
     
         3 . The electronic cigarette atomization assembly according to  claim 2 , wherein the electronic paste comprises at least one of carbon-containing paste, stainless steel-containing paste, silver-containing paste, gold-containing paste, nickel-containing paste, titanium-containing paste, aluminum-containing paste, and copper-containing paste. 
     
     
         4 . The electronic cigarette atomization assembly according to  claim 1 , wherein the porous matrix is made of a porous ceramic material, a carbon material or a foam metal. 
     
     
         5 . The electronic cigarette atomization assembly according to  claim 1 , wherein the heating layer comprises one or multiple heating tapes. 
     
     
         6 . The electronic cigarette atomization assembly according to  claim 1 , wherein the connecting portions and the heating layer are formed integrally. 
     
     
         7 . The electronic cigarette atomization assembly according to  claim 1 , wherein conductors for being electrically connected to the electronic cigarette power supply are disposed on the connecting portions. 
     
     
         8 . A manufacturing method for the electronic cigarette atomization assembly according to  claim 1 , wherein the manufacturing method comprises the following steps:
 S 1 : disposing a heating material layer on a whole piece of porous matrix;   S 2 : processing the heating material layer into multiple heating layers that are arranged at intervals, and connecting portions being formed at two ends of each connecting layer, respectively; and   S 3 : cutting the whole piece of porous matrix into multiple independent porous matrixes corresponding to the heating layers and the connecting portions at the two ends of the heating layers, each of the porous matrixes with the heating layer and the connecting portions formed thereon forming one said electronic cigarette atomization assembly.   
     
     
         9 . The manufacturing method for the electronic cigarette atomization assembly according to  claim 8 , wherein in Step S 1 , carbon powder or metal powder is disposed on a surface of the whole piece of porous matrix by vacuum plating or spraying. 
     
     
         10 . The manufacturing method for the electronic cigarette atomization assembly according to  claim 8 , wherein in Step S 1 , a heating material layer is disposed on a surface of one or two green bodies;
 Step S 2  further comprises: combining the two green bodies to form a whole with the heating material layer sandwiched between the two green bodies; and sintering the green bodies at 300° C.-1000° C. to form the porous matrix; and   in the atomization assembly obtained in Step S 3 , the heating layer is located inside the porous matrix, and the connecting portions at the two ends of the heating layer are exposed out of two opposite ends of the porous matrix.   
     
     
         11 . The electronic cigarette atomization assembly according to  claim 2 , wherein the metal powder comprises at least one of stainless steel, nickel, titanium, and nichrome. 
     
     
         12 . The electronic cigarette atomization assembly according to  claim 4 , wherein the porous ceramic material comprises at least one of mullite, aluminum oxide, silicon dioxide, silicon carbide and diatomite. 
     
     
         13 . The electronic cigarette atomization assembly according to  claim 5 , wherein the multiple heating tapes are parallelly distributed at intervals, or connected in a crossed manner. 
     
     
         14 . The electronic cigarette atomization assembly according to  claim 1 , wherein the heating layer is mesh-shaped or spiral-shaped. 
     
     
         15 . The manufacturing method for the electronic cigarette atomization assembly according to  claim 8 , wherein the Step  51  comprises:
 electronic paste being disposed on the surface of the whole piece of porous matrix by printing, coating, spraying or soaking, and then baked at a high temperature of 300° C.-1000° C. to be cured to form the heating material layer. 
 
     
     
         16 . The manufacturing method for the electronic cigarette atomization assembly according to  claim 8 , wherein the Step S 2  comprises:
 separating the heating material layer into multiple heating layers by laser cutting or chemical etching.