Atomizer and electronic atomization device

Abstract

An atomizer and an electronic atomization device are provided. The atomizer includes an outer housing with therein: a liquid storage cavity; a heating element, configured to heat at least part of a liquid substrate to generate an aerosol; a capillary element, including a first portion coupled to the heating element and a second portion extending from the first portion toward the liquid storage cavity, the second portion to absorb a liquid substrate from the liquid storage cavity and deliver it to the first portion; and a support, configured to hold the capillary element, the support including a recess to accommodate at least part of the capillary element, the support provided with a first trench formed on a recess surface, and the first trench extends in parallel with the second portion of the capillary element and is adjacent to an outer surface of the second portion.

1 . An atomizer, configured to atomize a liquid substrate to generate an aerosol, and comprising an outer housing, wherein the outer housing has arranged therein:
 a liquid storage cavity, configured to store a liquid substrate;   a heating element, configured to heat at least part of the liquid substrate to generate an aerosol;   a capillary element, comprising a first portion coupled to the heating element and a second portion extending from the first portion toward the liquid storage cavity, wherein the second portion is constructed to absorb the liquid substrate from the liquid storage cavity and deliver the liquid substrate to the first portion; and   a support, configured to hold the capillary element, wherein the support comprises a recess configured to accommodate at least part of the capillary element, the support is provided with a first trench formed on a surface of the recess, and the first trench extends in parallel with the second portion of the capillary element and is adjacent to an outer surface of the second portion.   
     
     
         2 . The atomizer according to  claim 1 , wherein the recess comprises a first holding recess configured to accommodate at least part of the first portion and a second holding recess configured to accommodate at least part of the second portion. 
     
     
         3 . The atomizer according to  claim 2 , wherein the first trench extends from a surface of the second holding recess to the first holding recess. 
     
     
         4 . The atomizer according to  claim 2 , wherein the second holding recess and the first holding recess are discrete. 
     
     
         5 . The atomizer according to  claim 1 , wherein the surface of the recess comprises two discrete portions. 
     
     
         6 . The atomizer according to  claim 1 , wherein the first trench is a capillary trench. 
     
     
         7 . The atomizer according to  claim 1 , wherein the first trench is constructed to be in fluid communication with the liquid storage cavity. 
     
     
         8 . The atomizer according to  claim 1 , wherein at least part of the first trench is constructed to be bent. 
     
     
         9 . The atomizer according to  claim 1 , wherein a second trench is arranged on the surface of the recess. 
     
     
         10 . The atomizer according to  claim 9 , wherein the second trench is arranged perpendicular to an extension direction of the first portion. 
     
     
         11 . The atomizer according to  claim 10 , wherein the first trench extends to be in communication with the second trench. 
     
     
         12 . The atomizer according to  claim 1 , wherein the capillary element is rigid. 
     
     
         13 . (canceled) 
     
     
         14 . The atomizer according to  claim 1 , wherein the first portion has an atomization surface facing away from the liquid storage cavity, and the heating element is coupled to the atomization surface. 
     
     
         15 . (canceled) 
     
     
         16 . The atomizer according to c  claim 1 , wherein the outer housing further has arranged therein:
 a first liquid guide element, constructed to extend in a direction perpendicular to a longitudinal direction of the outer housing and arranged between the liquid storage cavity and the capillary element in the longitudinal direction of the outer housing, wherein the first liquid guide element has a first surface close to the liquid storage cavity in the longitudinal direction of the outer housing and a second surface facing away from the first surface, and the first surface is configured to be in fluid communication with the liquid storage cavity to absorb the liquid substrate in the liquid storage cavity; and   the second portion is constructed to be in contact with the second surface to absorb the liquid substrate.   
     
     
         17 . The atomizer according to  claim 16 , further comprising:
 an air channel, configured to provide a fluid path for air to cross the first liquid guide element in the longitudinal direction of the outer housing to enter the liquid storage cavity, wherein   the first trench is constructed to be in fluid communication with the air channel to form fluid communication with the liquid storage cavity.   
     
     
         18 . The atomizer according to  claim 17 , wherein the air channel comprises a first channel portion formed between the first liquid guide element and the outer housing, and a second channel portion formed between the first support and the first liquid guide element, and the first trench is in communication with the second channel portion. 
     
     
         19 . The atomizer according to  claim 18 , wherein the second channel portion comprises a groove formed on the second surface of the first liquid guide element adjacent to the support. 
     
     
         20 . The atomizer according to  claim 16 , wherein a rigidity of the capillary element is greater than a rigidity of the first liquid guide element. 
     
     
         21 . The atomizer according to  claim 1 , wherein the outer housing further has arranged therein:
 a first liquid guide element, constructed to extend in a direction perpendicular to a longitudinal direction of the outer housing and arranged between the liquid storage cavity and the capillary element in the longitudinal direction of the outer housing, wherein   the second portion is constructed to at least partially run through the first liquid guide element in the longitudinal direction of the outer housing.   
     
     
         22 . An electronic atomization device, comprising the atomizer according to  claim 1 , and a power supply assembly configured to supply power to the atomizer.