Electronic vaporization device and vaporizer thereof

Abstract

A vaporizer includes: a heating top cover having an airway corner; a heating body; and a liquid return groove extending from the heating top cover to the heating body, the liquid return groove being arranged at the airway corner. In an embodiment, the vaporizer includes a main body and the main body includes a main airway. The heating top cover is arranged in the main body. A top cover airway is formed between the heating top cover and the main body. The top cover airway is in communication with the main airway through the airway corner.

What is claimed is: 
     
         1 . A vaporizer, comprising:
 a heating top cover comprising an airway corner;   a heating body; and   a liquid return groove extending from the heating top cover to the heating body, the liquid return groove being arranged at the airway corner.   
     
     
         2 . The vaporizer according to  claim 1 , wherein the vaporizer comprises a main body and the main body comprises a main airway,
 wherein the heating top cover is arranged in the main body,   wherein a top cover airway is formed between the heating top cover and the main body, and   wherein the top cover airway is in communication with the main airway through the airway corner.   
     
     
         3 . The vaporizer according to  claim 1 , wherein a groove side wall of the liquid return groove close to a vaporization surface of the heating body comprises a side wall opening, and
 wherein the side wall opening is configured for liquid to pass through.   
     
     
         4 . The vaporizer according to  claim 1 , wherein at least one groove side wall of the liquid return groove is provided with an inclined surface, and
 wherein the inclined surface is configured to guide liquid to flow to the heating body.   
     
     
         5 . The vaporizer according to  claim 4 , wherein at least a part of a structure of the heating body is accommodated in the liquid return groove, and
 wherein the inclined surface gradually approaches the heating body in a direction away from a bottom wall of the liquid return groove.   
     
     
         6 . The vaporizer according to  claim 1 , wherein the heating top cover is provided with a liquid guide groove in communication with the liquid return groove, and
 wherein the liquid guide groove is configured to guide liquid to flow to the liquid return groove.   
     
     
         7 . The vaporizer according to  claim 6 , wherein one end of the liquid guide groove is located at the airway corner, and an other end is located on a side of the heating top cover close to the vaporization surface. 
     
     
         8 . The vaporizer according to  claim 1 , wherein the plurality of liquid return grooves are spaced apart at the airway corner. 
     
     
         9 . The vaporizer according to  claim 1 , wherein a quantity of liquid return grooves located in a middle portion of the heating top cover is M,
 wherein a quantity of liquid return grooves located at an edge of the heating top cover is N, and   wherein M is greater than or equal to N.   
     
     
         10 . An electronic vaporization device, comprising:
 a power supply assembly; and   the vaporizer  claim 1 ,   wherein the power supply assembly is electrically connected to the heating body of the vaporizer.