Vaporizer and electronic vaporization device

Abstract

An atomizer and an electronic atomization device. An atomizer ( 100 ) comprises: a liquid storage cavity ( 12 ); an atomization assembly, which is in fluid communication with the liquid storage cavity ( 12 ) so as to obtain a liquid matrix and heat the liquid matrix to generate aerosol; a first sealing element ( 70, 70 b ) at least partially sealing the liquid storage cavity ( 12 ); a support ( 60, 60 a , 60 b ), which is used for supporting the first sealing element ( 70, 70 b ), so as to make the first sealing element ( 70, 70 b ) at least partially positioned between the support ( 60, 60 a, 60 b ) and the liquid storage cavity ( 12 ), wherein a first through hole ( 65, 65 a, 65 b ) is provided on the support ( 60, 60 a, 60 b ); and first air guide elements ( 80, 90, 80 a, 90 a, 80 b ), at least part of which extend into the first through hole ( 65, 65 a, 65 b ), with a first air channel being defined between the first air guide elements ( 80, 90, 80 a, 90 a, 80 b ) and the first through hole ( 65, 65 a, 65 b ) or defined by the first air guide elements ( 80, 90, 80 a, 90 a, 80 b ), so as to provide a first flow path for air to enter the liquid storage cavity ( 12 ). According to the atomizer ( 100 ), the first through hole ( 65, 65 a, 65 b ) is provided on the support ( 60, 60 a, 60 b ), and the first air guide elements ( 80, 90, 80 a, 90 a, 80 b ) at least partially arranged in the first through hole ( 65, 65 a, 65 b ) jointly define an air channel for external air to enter the liquid storage cavity ( 12 ), such that when the negative pressure of the liquid storage cavity ( 12 ) exceeds a certain threshold value, air is supplemented into the liquid storage cavity ( 12 ), so as to relieve the negative pressure of the liquid storage cavity ( 12 ).

What is claimed is: 
     
         1 . A vaporizer, configured to vaporize a liquid substrate to generate an aerosol, and comprising:
 a liquid storage cavity used for storing the liquid substrate;   a vaporization assembly, in fluid communication with the liquid storage cavity to obtain the liquid substrate and heat the liquid substrate to generate the aerosol;   a first sealing element, at least partially sealing the liquid storage cavity;   a support, used for supporting the first sealing element, a first through hole being provided in the support or the first sealing element; and   a first air guiding element, at least partially extending in the first through hole, and defining first air channels together with the first through hole or by itself to provide first flow paths for air to enter the liquid storage cavity.   
     
     
         2 . The vaporizer according to  claim 1 , wherein first grooves extending in an axial direction of the first through hole are provided in a surface of the first air guiding element, and the first air channels are defined between the first grooves and an inner wall of the first through hole. 
     
     
         3 . The vaporizer according to  claim 1 , wherein the first through hole is configured to extend in a longitudinal direction of the vaporizer. 
     
     
         4 . The vaporizer according to any of  claims 1  to  3 , wherein the first air guiding element is configured to be substantially in a column shape. 
     
     
         5 . The vaporizer according to  claim 4 , wherein the first air guiding element comprises a first section and a second section in an axial direction; and the first section is close to the liquid storage cavity and has a cross-sectional area greater than that of the second section. 
     
     
         6 . The vaporizer according to any of  claims 1  to  3 , wherein the first air guiding element is flexible. 
     
     
         7 . The vaporizer according to any of  claims 1  to  3 , wherein the support comprises a first portion adjacent to the liquid storage cavity in the longitudinal direction of the vaporizer, and a second portion facing away from the first portion; wherein
 the first portion is configured to support the first sealing element; 
 the second portion is configured to at least partially accommodate and hold the vaporization assembly; and 
 the through hole is arranged to be located in the first portion. 
 
     
     
         8 . The vaporizer according to  claim 7 , wherein the first through hole is configured to avoid the second portion in the longitudinal direction of the vaporizer. 
     
     
         9 . The vaporizer according to  claim 7 , wherein the first sealing element is provided with first liquid guiding holes for the liquid substrate in the liquid storage cavity to flow towards the vaporization assembly; and the first air channels are provided with air outlet ends close to the liquid storage cavity, and the air outlet ends are located in the first liquid guiding holes. 
     
     
         10 . The vaporizer according to any of  claims 1  to  3 , further comprising:
 a vaporization chamber, providing a space for release of the aerosol, air inlet ends of the first air channels communicating with the vaporization chamber. 
 
     
     
         11 . The vaporizer according to any of  claims 1  to  3 , wherein the first air guiding element is formed by at least part of the first sealing element extending into the first through hole. 
     
     
         12 . The vaporizer according to any of  claims 1  to  3 , wherein the first groove has a depth of less than 2 mm. 
     
     
         13 . The vaporizer according to  claim 1 , wherein the support comprises:
 a first surface, at least partially defining a liquid guiding channel, the vaporization assembly being in fluid communication with the liquid storage cavity through the liquid guiding channel; and   a second surface, facing away from the liquid storage cavity, the through hole extending between the first surface and the second surface.   
     
     
         14 . The vaporizer according to  claim 1 , wherein the first sealing element is provided with a wall used for defining a hollow capable of at least partially accommodating the vaporization assembly, and the air guiding element extends from the wall and is located outside the hollow. 
     
     
         15 . A vaporizer, configured to vaporize a liquid substrate to generate an aerosol, and comprising:
 a liquid storage cavity used for storing the liquid substrate;   a porous body, comprising a liquid channel penetrating through the porous body in a length direction and being in fluid communication with the liquid storage cavity through the liquid channel to suck the liquid substrate;   a heating element, bonded to the porous body and used for heating at least part of the liquid substrate in the porous body to generate the aerosol;   a support, used for holding the porous body, the support being provided with a second through hole opposite to the liquid channel; and   a second air guiding element, at least partially extending in the second through hole, and defining second air channels together with the second through hole or by itself to provide second flow paths for air to enter the liquid storage cavity.   
     
     
         16 . The vaporizer according to  claim 15 , wherein the second through hole is configured to extend in a longitudinal direction perpendicular to the vaporizer. 
     
     
         17 . The vaporizer according to  claim 15 , wherein the second air guiding element is configured to be substantially in a column shape. 
     
     
         18 . The vaporizer according to  claim 15 , wherein second grooves extending in an axial direction of the second through hole are provided in a surface of the second air guiding element, and the second air channels are defined between the second grooves and an inner wall of the second through hole. 
     
     
         19 . The vaporizer according to  claim 15 , wherein the support comprises a holding space, and the porous body is at least partially accommodated and held in the holding space; and
 the second through hole is configured to extend between an inner surface of the holding space and an outer surface of the support.   
     
     
         20 . The vaporizer according to  claim 15 , wherein the support comprises a first portion adjacent to the liquid storage cavity in the longitudinal direction of the vaporizer, and a second portion facing away from the first portion; wherein
 the first portion is provided with a first liquid guiding channel in fluid communication with the liquid storage cavity, and a liquid channel of the porous body is in fluid communication with the liquid storage cavity through the first liquid guiding channel;   the second portion is configured to at least partially accommodate and hold the porous body; and   the second through hole is formed in the second portion.   
     
     
         21 . The vaporizer according to  claim 15 , further comprising:
 a second sealing element, located between the support and the porous body and configured to wrap at least part of an outer surface of the porous body and avoid the second through hole.   
     
     
         22 . An electronic vaporization device, comprising a vaporization device used for vaporizing a liquid substrate to generate an aerosol, and a power supply device supplying power to the vaporization device, the vaporization device comprising the vaporizer according to any of  claims 1  to  21 .