Vaporizer and aerosol generation device

Abstract

This application discloses a vaporizer and an aerosol generation device. The vaporizer includes a housing having a liquid storage cavity, and a vaporization assembly. The vaporization assembly includes a heating element and a liquid guide element; and the liquid guide element includes a main body portion and at least one extension portion, and the heating element is connected to the main body portion. At least one liquid guide hole and an accommodation cavity configured to buffer a liquid substrate are defined in the vaporization assembly. The extension portion may extend into the accommodation cavity that is arranged away from the liquid storage cavity. In the vaporizer, the extension portion that may be configured to guide excessive liquid substrates is arranged on the liquid guide element, which can prevent excessive liquid substrates from accumulating; and the extension portion extends into the accommodation cavity that may further buffer the excessive liquid substrates.

1 . A vaporizer, comprising:
 a housing and a liquid storage cavity that is provided in the housing and that is configured to store a liquid substrate;   a vaporization assembly, configured to vaporize the liquid substrate, wherein the vaporization assembly comprises a heating element and a liquid guide element, the liquid guide element comprises a main body portion and at least one extension portion, and the heating element is connected to the main body portion; and   an accommodation cavity, configured to buffer the liquid substrate, wherein the extension portion extends from the main body portion into the accommodation cavity, and the accommodation cavity is farther away from the liquid storage cavity than the heating element in a longitudinal direction of the housing.   
     
     
         2 . The vaporizer according to  claim 1 , wherein the extension portion at least partially extends away from the liquid storage cavity in the longitudinal direction of the housing. 
     
     
         3 . The vaporizer according to  claim 1 , wherein a vaporization cavity is defined in the vaporization assembly, the main body portion is at least partially located inside the vaporization cavity, and the extension portion is located outside the vaporization cavity. 
     
     
         4 . The vaporizer according to  claim 1 , wherein the extension portion extends from the main body portion in a direction away from the liquid storage cavity. 
     
     
         5 . The vaporizer according to  claim 4 , wherein the extension portion extends substantially perpendicularly to the main body portion. 
     
     
         6 . The vaporizer according to  claim 4 , wherein the main body portion is constructed to be obliquely placed at an angle in an axial direction of the housing. 
     
     
         7 . The vaporizer according to  claim 1 , wherein the heating element comprises a tubular heating body or a spiral coil surrounding the main body portion. 
     
     
         8 . The vaporizer according to  claim 1 , wherein the vaporizer further comprises at least one liquid guide hole, the liquid guide hole is configured to provide a path for transferring the liquid substrate in the liquid storage cavity to the liquid guide element, a capillary element is accommodated in the liquid guide hole, and the capillary element at least partially extends in the longitudinal direction of the housing and is in contact with the liquid guide element. 
     
     
         9 . The vaporizer according to  claim 1 , wherein a position of the accommodation cavity corresponds to a position of the liquid guide hole, and the accommodation cavity is in fluid communication with the liquid guide hole. 
     
     
         10 . The vaporizer according to  claim 8 , wherein the extension portion comprises a first extension portion and a second extension portion, and the first extension portion and the second extension portion are arranged at two ends of the main body portion. 
     
     
         11 . The vaporizer according to  claim 10 , wherein the liquid guide hole comprises a first liquid guide hole and a second liquid guide hole; a first capillary element is accommodated in the first liquid guide hole, and a second capillary element is accommodated in the second liquid guide hole; and the first capillary element and the second capillary element are respectively in contact with the two ends of the main body portion. 
     
     
         12 . The vaporizer according to  claim 11 , wherein the first capillary element extends from an end portion of the main body portion in a direction away from the first extension portion, and the second capillary element extends from an end portion of the main body portion in a direction away from the second extension portion. 
     
     
         13 . The vaporizer according to  claim 1 , wherein the vaporizer further comprises a holder, the holder comprises at least one support arm configured to fix the liquid guide element, and the accommodation cavity is defined on the holder. 
     
     
         14 . The vaporizer according to  claim 13 , wherein the vaporizer further comprises a seal member, and the holder and the seal member jointly define at least one fixing hole to fix the liquid guide element. 
     
     
         15 . A vaporizer, comprising:
 a housing and a liquid storage cavity that is provided in the housing and that is configured to store a liquid substrate; and   a vaporization assembly, configured to vaporize the liquid substrate, wherein the vaporization assembly comprises a heating element and a liquid guide element; and the liquid guide element comprises a main body portion and at least one extension portion, and the heating element is connected to the main body portion, wherein:   the extension portion extends from the main body portion in a direction away from the liquid storage cavity.   
     
     
         16 . An aerosol generation device, comprising the vaporizer according to  claim 1  and a power supply device for providing electric drive for the vaporizer. 
     
     
         17 . The vaporizer according to  claim 6 , wherein a vaporization cavity is defined in the vaporization assembly, the main body portion is at least partially located inside the vaporization cavity, and the extension portion is located outside the vaporization cavity. 
     
     
         18 . The vaporizer according to  claim 17 , wherein the vaporizer further comprises at least one liquid guide hole, the liquid guide hole is configured to provide a path for transferring the liquid substrate in the liquid storage cavity to the liquid guide element, a capillary element is accommodated in the liquid guide hole, and the capillary element at least partially extends in the longitudinal direction of the housing and is in contact with the liquid guide element. 
     
     
         19 . The vaporizer according to  claim 18 , wherein the extension portion comprises a first extension portion and a second extension portion, and the first extension portion and the second extension portion are arranged at two ends of the main body portion. 
     
     
         20 . The vaporizer according to  claim 19 , wherein the liquid guide hole comprises a first liquid guide hole and a second liquid guide hole; a first capillary element is accommodated in the first liquid guide hole, and a second capillary element is accommodated in the second liquid guide hole; and the first capillary element and the second capillary element are respectively in contact with the two ends of the main body portion; the first capillary element extends from an end portion of the main body portion in a direction away from the first extension portion, and the second capillary element extends from an end portion of the main body portion in a direction away from the second extension portion.