Electronic atomization device

Abstract

An electronic vaporization device includes a liquid storage part internally having a liquid storage chamber for storing a liquid substrate and an airflow channel isolated from the liquid storage chamber; a vaporization element for vaporizing the liquid substrate to generate aerosol; a first shell that defines an air outlet hole for the aerosol to escape from the electronic vaporization device; and a second shell connected to the liquid storage part and covering a second part of the outer surface of the liquid storage part; the liquid storage part includes a protrusion part protruding from the first or the second part of the outer surface, at least part of an outer surface of the protrusion part is not covered by the first shell nor by the second shell. During assembly, only the first shell and the second shell need to be fixedly connected to the liquid storage part respectively.

What is claimed is: 
     
         1 . An electronic vaporization device, comprising:
 a liquid storage part internally having a liquid storage chamber for storing a liquid substrate and an airflow channel for guiding an air flow, wherein the liquid storage chamber is isolated from the airflow channel;   a vaporization element configured to vaporize the liquid substrate from the liquid storage chamber to generate aerosol;   a first shell that defines an air outlet hole for the aerosol to escape from the electronic vaporization device, wherein the first shell is connected to the liquid storage part and covers a first part of an outer surface of the liquid storage part; and   a second shell connected to the liquid storage part and covering a second part of the outer surface of the liquid storage part;   wherein the liquid storage part comprises a protrusion part protruding from the first part or the second part of the outer surface, at least part of an outer surface of the protrusion part is not covered by the first shell and the second shell.   
     
     
         2 . The electronic vaporization device according to  claim 1 , wherein the protrusion part is configured substantially annular. 
     
     
         3 . The electronic vaporization device according to  claim 1 , wherein the protrusion part is transparent so that the liquid storage chamber and the airflow channel can be seen simultaneously through the outer surface of the protrusion part. 
     
     
         4 . The electronic vaporization device according to  claim 1 , wherein the first shell and the second shell are spaced apart by the protrusion part. 
     
     
         5 . The electronic vaporization device according to  claim 1 , wherein the height of the protrusion part protruding from the first part is substantially equal to the thickness of the first shell, and/or the height of the protrusion part protruding from the second part is substantially equal to the thickness of the second shell. 
     
     
         6 . The electronic vaporization device according to  claim 1 , wherein the liquid storage part comprises a chamber structure axially extending inside the liquid storage part, the liquid storage chamber is formed in the chamber structure, and the airflow channel is defined and formed between an outer wall of the chamber structure and an inner wall of a housing of the liquid storage part. 
     
     
         7 . The electronic vaporization device according to  claim 6 , wherein the airflow channel comprises a first airflow channel and a second airflow channel, and the first airflow channel and the second airflow channel are distributed on two sides of the liquid storage chamber. 
     
     
         8 . The electronic vaporization device according to  claim 7 , wherein in a same cross section, cross-sectional areas of the first airflow channel and the second airflow channel are substantially the same. 
     
     
         9 . The electronic vaporization device according to  claim 1 , wherein the liquid storage part has a liquid filling opening end, the liquid substrate can be filled into the liquid storage chamber through the liquid filling opening end, and the liquid storage part further comprises a second seal member for sealing the liquid filling opening end. 
     
     
         10 . The electronic vaporization device according to  claim 9 , wherein the airflow channel comprises an air outlet port adjacent to the liquid filing opening end, and the height of the air outlet port is less than that of the liquid filling opening end. 
     
     
         11 . The electronic vaporization device according to  claim 6 , wherein the chamber structure further defines a first accommodating chamber, the vaporization element is at least partially accommodated in the first accommodating chamber, and the liquid storage chamber communicates with the vaporization element. 
     
     
         12 . The electronic vaporization device according to  claim 11 , wherein the chamber structure is provided with a partition wall extending radially inside the chamber structure, and the partition wall divides an interior of the chamber structure into the liquid storage chamber and the first accommodating chamber. 
     
     
         13 . The electronic vaporization device according to  claim 11 , wherein a first seal member is arranged between an inner wall of the first accommodating chamber and the vaporization element, and a ventilation channel is defined and formed between the first seal member and the vaporization element or between the first seal member and the inner wall of the first accommodating chamber to provide a path for air to enter the liquid storage chamber. 
     
     
         14 . The electronic vaporization device according to  claim 13 , wherein the vaporization element comprises a porous body with a liquid absorbing surface, and the electronic vaporization device further comprises an air bubble guide part configured to guide air from the ventilation channel or air bubbles formed by the air into the liquid storage chamber in a direction away from the liquid absorbing surface. 
     
     
         15 . The electronic vaporization device according to  claim 14 , wherein the air bubble guide part is a part of the first seal member. 
     
     
         16 . The electronic vaporization device according to  claim 15 , wherein the air bubble guide part is configured as extending from a body of the first seal member toward the liquid storage chamber. 
     
     
         17 . The electronic vaporization device according to  claim 15 , wherein the air bubble guide part is provided with an axially extending air guide channel, and the air guide channel communicates an air outlet end of the ventilation channel with the liquid storage chamber. 
     
     
         18 . The electronic vaporization device according to  claim 1 , further comprising a bracket installed in the second shell and a third seal member arranged at a proximal end of the bracket, wherein the proximal end of the bracket is connected to the liquid storage part, and the proximal end of the bracket has a first vent hole communicating with the airflow channel; the third seal member has a third vent hole for air to enter the interior of the liquid storage part, and the third vent hole is staggered from the first vent hole. 
     
     
         19 . An electronic vaporization device, wherein, comprising:
 a liquid storage part internally having a liquid storage chamber for storing a liquid substrate and an airflow channel for guiding an air flow, wherein the liquid storage chamber is isolated from the airflow channel; wherein the liquid storage part also has a first accommodating chamber inside, and the first accommodating chamber is separated from the liquid storage chamber by a partition wall, and a liquid guide opening is formed in the partition wall;   a vaporization element at least partially accommodated in the first accommodating chamber to vaporize the liquid substrate from the liquid storage chamber to generate aerosol; and   a first seal member arranged between an inner surface of the first accommodating chamber and the vaporization element;   wherein the inner surface of the first accommodating chamber is provided with a groove communicating with the liquid guide opening, a ventilation channel for supplementing air to the liquid storage chamber is defined and formed between the groove and the first seal member, the groove comprises a first part and a second part communicating with the first part, the first part is located on a side wall of the first accommodating chamber, and the second part is located on the partition wall.   
     
     
         20 . The electronic vaporization device according to  claim 19 , further comprising the partition wall is provided with a partition plate spanning over the liquid guide opening, and the partition plate divides the liquid guide opening into two mutually isolated liquid outlets.