Electronic cigarette vaporization apparatus and electronic cigarette

Abstract

Provided are an electronic cigarette vaporization apparatus and an electronic cigarette. The electronic cigarette vaporization apparatus includes: a housing, an e-liquid storage tank and a vaporization assembly being arranged in the housing, and an airflow channel in communication with external air being provided on the housing; and the vaporization assembly including a porous body and a heating body arranged on the vaporization surface, the porous body including a liquid absorbing surface and a vaporization surface that are oppositely arranged, at least one vent channel being provided on the porous body, the vent channel having an end in communication with the e-liquid storage tank, and an other end in communication with the external air; and a first seal member sleeved on the vaporization assembly and including at least one seal portion corresponding to the vent channel; and the seal portion opening and closing the vent channel.

What is claimed is: 
     
         1 . An electronic cigarette vaporization apparatus, comprising:
 a housing, an e-liquid storage tank and a vaporization assembly being arranged in the housing, and an airflow channel in communication with external air being provided on the housing; and   the vaporization assembly comprising a porous body and a heating body, the porous body comprising a liquid absorbing surface and a vaporization surface that are oppositely arranged, the heating body being arranged on the vaporization surface, at least one vent channel being provided on the porous body, an end of the vent channel being in communication with the e-liquid storage tank, and an other end of the vent channel being in communication with the external air; and   a first seal member, the first seal member being sleeved on the vaporization assembly, the first seal member comprising at least one seal portion corresponding to the vent channel, and the seal portion opening and closing the vent channel to allow the external air to enter the e-liquid storage tank and prevent liquid in the e-liquid storage tank from flowing out.   
     
     
         2 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein the vent channel passes through along an extending direction from the liquid absorbing surface to the vaporization surface. 
     
     
         3 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein
 the seal portion is switchable between a first state and a second state, and in the first state, the seal portion closes the vent channel, to prevent the liquid in the e-liquid storage tank from flowing out; and   in the second state, the seal portion opens the vent channel, to allow the external air to enter the e-liquid storage tank.   
     
     
         4 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein a first cover body and a second cover body are further arranged in the housing, the first cover body and the second cover body define an accommodating cavity, the vaporization assembly is arranged in the accommodating cavity, an avoidance groove and a liquid flowing hole are provided in the first cover body, and the avoidance groove is in communication with the liquid flowing hole. 
     
     
         5 . The electronic cigarette vaporization apparatus according to  claim 3 , wherein in the second state, the seal portion is deformed toward the e-liquid storage tank to open the vent channel, to allow the external air to enter the e-liquid storage tank; and in the first state, the seal portion is deformed toward the vaporization assembly to close the vent channel. 
     
     
         6 . The electronic cigarette vaporization apparatus according to  claim 1 , further comprising: a second seal member, wherein the second seal member is arranged in the housing, and an outer edge of the second seal member abuts against an inner wall of the housing to enclose and form the e-liquid storage tank. 
     
     
         7 . The electronic cigarette vaporization apparatus according to  claim 3 , wherein when an air pressure in the e-liquid storage tank is greater than or equal to an external atmospheric pressure, the seal portion is in the first state; and when the air pressure in the e-liquid storage tank is less than the external atmospheric pressure, the seal portion is in the second state. 
     
     
         8 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein an upper edge of the first seal member abuts against the vaporization assembly, and the seal portion is located on an inner wall of the upper edge of the first seal member. 
     
     
         9 . The electronic cigarette vaporization apparatus according to  claim 4 , wherein a quantity of vent channels is more than one, the vent channels are spaced along the heating body, and a quantity of seal portions and a quantity of avoidance grooves respectively correspond to the quantity of the vent channels. 
     
     
         10 . The electronic cigarette vaporization apparatus according to  claim 9 , wherein when the seal portions are in the first state, each seal portion covers a vent channel corresponding to the seal portion. 
     
     
         11 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein the vent channel is a groove provided on an outer surface of the porous body, and the groove passes through the porous body along the extending direction from the liquid absorbing surface to the vaporization surface. 
     
     
         12 . The electronic cigarette vaporization apparatus according to  claim 11 , wherein the first seal member is sleeved on the vaporization assembly, and the groove matches an inner wall of the first seal member to form the vent channel. 
     
     
         13 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein the vent channel is a through hole running through the porous body along the extending direction from the liquid absorbing surface to the vaporization surface. 
     
     
         14 . The electronic cigarette vaporization apparatus according to  claim 12 , wherein the quantity of vent channels is more than one, and the vent channels are spaced on an outer side wall of the porous body. 
     
     
         15 . The electronic cigarette vaporization apparatus according to  claim 12 , wherein the quantity of vent channels is more than one, and the vent channels are spaced on an inner edge of an outer periphery of the porous body. 
     
     
         16 . The electronic cigarette vaporization apparatus according to  claim 1 , wherein a quantity of seal portions and arrangement positions of the seal portions are in a one-to-one correspondence with the quantity of vent channels and arrangement positions of the vent channels. 
     
     
         17 . The electronic cigarette vaporization apparatus according to  claim 16 , wherein using the extending direction from the liquid absorbing surface to the vaporization surface as a preset direction, a cross section of the first seal member perpendicular to the preset direction is an elongated structure, and multiple seal portions are located on two ends of the elongated structure. 
     
     
         18 . The electronic cigarette vaporization apparatus according to  claim 4 , wherein a vaporization cavity is formed between the vaporization surface of the porous body and the second cover body, and a vent hole in communication with the airflow channel is provided on the second cover body. 
     
     
         19 . The electronic cigarette vaporization apparatus according to  claim 18 , further comprising: a lower cover, wherein the lower cover is arranged on a lower end of the second cover body and matches the housing, an air inlet hole is provided on the lower cover, and the air inlet hole is in communication with the vent hole. 
     
     
         20 . An electronic cigarette, comprising the electronic cigarette vaporization apparatus according to  claim 1 .