Atomizer and electronic atomization device

Abstract

An atomizer comprises a housing internally provided with: a liquid storage cavity for storing a liquid substrate; an elastic sealing member, which at least partially defines the liquid storage cavity, wherein the elastic sealing member is provided with an accommodation cavity, and one end of the elastic sealing member is provided with an opening in communication with the accommodation cavity; and an atomization assembly for atomizing the liquid substrate to generate an aerosol, wherein the atomization assembly can be accommodated in the accommodating cavity via the opening, and part of the outer surface of the atomization assembly is spaced apart from a surface of an inner wall of the elastic sealing member. The elastic sealing member is provided with the accommodating cavity for accommodating the atomization assembly, and a side wall of the atomization assembly is spaced apart from the inner wall of the elastic sealing member.

1 . An atomizer, comprising a housing, wherein the housing is internally provided with:
 a liquid storage cavity, for storing a liquid substrate;   an elastic sealing member, at least partially defining the liquid storage cavity, wherein the elastic sealing member is provided with an accommodating cavity, and one end of the elastic sealing member is provided with an opening in communication with the accommodating cavity; and   an atomization assembly, configured to atomize the liquid substrate to generate an aerosol, wherein   the atomization assembly is capable of being accommodated in the accommodating cavity through the opening, and a part of an outer surface of the atomization assembly is spaced apart from an inner wall surface of the elastic sealing member, to form an airflow channel.   
     
     
         2 . The atomizer according to  claim 1 , wherein the atomization assembly comprises a liquid guide element, wherein the liquid guide element has a first surface and a second surface that are opposite, and the airflow channel is configured to cause the aerosol to flow through side surfaces of the liquid guide element located between the first surface and the second surface. 
     
     
         3 . The atomizer according to  claim 2 , wherein the airflow channel comprises a first airflow channel adjacent to one side surface of the liquid guide element and a second airflow channel adjacent to another side surface of the liquid guide element. 
     
     
         4 . The atomizer according to  claim 2 , wherein the liquid guide element is rigid. 
     
     
         5 . The atomizer according to  claim 1 , wherein the inner wall surface of the elastic sealing member for defining the accommodating cavity is provided with a groove, to define the airflow channel with the part of the outer surface of the atomization assembly. 
     
     
         6 . The atomizer according to  claim 1 , wherein a part of the outer surface of the atomization assembly is in contact with an inner wall surface of the accommodating cavity, to provide a seal between the liquid storage cavity and the airflow channel. 
     
     
         7 . The atomizer according to  claim 1 , wherein a width dimension of the atomization assembly is larger than a width dimension of the accommodating cavity, and/or a thickness dimension of the atomization assembly is larger than a thickness dimension of the accommodating cavity. 
     
     
         8 . The atomizer according to  claim 1 , wherein the elastic sealing member further comprises an aerosol channel, wherein an upstream end of the aerosol channel abuts against or is spaced apart from the atomization assembly, and a downstream end of the aerosol channel is connected to a vapor output pipe in the housing. 
     
     
         9 . The atomizer according to  claim 1 , wherein the atomizer further comprises an air pressure balancing channel at least partially located between the elastic sealing member and the atomization assembly, wherein the air pressure balancing channel is in communication with the liquid storage cavity to replenish air into the liquid storage cavity. 
     
     
         10 . The atomizer according to  claim 9 , wherein the elastic sealing member further comprises a liquid channel in communication with the accommodating cavity and the liquid storage cavity, the air pressure balancing channel comprises an airflow groove arranged on an inner wall of the accommodating cavity, and the airflow groove extends into the liquid channel to be in communication with the liquid storage cavity through the liquid channel. 
     
     
         11 . The atomizer according to  claim 9 , wherein the elastic sealing member further comprises a liquid channel in communication with the accommodating cavity and the liquid storage cavity; and
 the air pressure balancing channel comprises an airflow groove arranged on an inner wall of the accommodating cavity and a through hole physically separated from the liquid channel.   
     
     
         12 . The atomizer according to  claim 1 , wherein the elastic sealing member further comprises a liquid channel in communication with the accommodating cavity and the liquid storage cavity. 
     
     
         13 . The atomizer according to  claim 1 , further comprising an electrode electrically connected to the atomization assembly, wherein one end of the electrode is exposed on the housing, and another end of the electrode is in contact with the atomization assembly to support the atomization assembly. 
     
     
         14 . The atomizer according to  claim 1 , wherein the housing comprises a main body and a bottom cap detachably connected to the main body, the elastic sealing member comprises a sleeve portion, and the sleeve portion is clamped between an inner wall of the main body and an outer side wall of the bottom cap. 
     
     
         15 . The atomizer according to  claim 1 , wherein the atomization assembly comprises a liquid guide element and an atomization element, wherein the atomization element is combined on a surface of the liquid guide element closer to the liquid storage cavity. 
     
     
         16 . The atomizer according to  claim 15 , wherein the atomization element comprises a heating element or an ultrasonic atomization piece. 
     
     
         17 . An electronic atomization device, comprising a power supply assembly and the atomizer according to  claim 1 .