Vaporization core, vaporizer, and electronic vaporization device

Abstract

A vaporization core applied to an electronic vaporization device includes: a porous substrate having a liquid guide part that has a liquid absorbing surface for absorbing a liquid substrate and a vaporization surface on which a heating element is disposed, the liquid guide part conducting the liquid substrate on a side of the liquid absorbing surface to the vaporization surface; the heating element; and a vent part connected to the liquid guide part, the vent part having a hydrophobic ventilation characteristic, the vent part having an air inlet surface and an air outlet surface, the air inlet surface being for contacting gas, the air outlet surface being exposed to a liquid storage cavity, and the vent part being for conducting gas on a side of the air inlet surface to the air outlet surface.

What is claimed is: 
     
         1 . A vaporization core applied to an electronic vaporization device, comprising:
 a porous substrate comprising a liquid guide part that has a liquid absorbing surface configured to absorb a liquid substrate and a vaporization surface on which a heating element is disposed, the liquid guide part being configured to conduct the liquid substrate on a side of the liquid absorbing surface to the vaporization surface;   the heating element; and   a vent part connected to the liquid guide part, the vent part having a hydrophobic ventilation characteristic, the vent part comprising an air inlet surface and an air outlet surface, the air inlet surface being configured to contact gas, the air outlet surface being configured to be exposed to a liquid storage cavity, and the vent part being configured to conduct gas on a side of the air inlet surface to the air outlet surface.   
     
     
         2 . The vaporization core of  claim 1 , wherein the porous substrate has a first surface and a second surface opposite the first surface, the liquid absorbing surface and the air outlet surface are both located on the first surface, and the air inlet surface and the vaporization surface are located on the second surface. 
     
     
         3 . The vaporization core of  claim 1 , wherein the vent part extends from the air outlet surface to the air inlet surface. 
     
     
         4 . The vaporization core of  claim 1 , wherein the porous substrate has a first surface, a second surface, and a side surface, the second surface being opposite the first surface, and the side surface is connected to the first surface and the second surface, and
 wherein both the liquid absorbing surface and the air outlet surface are located on the first surface, the air inlet surface is located on the side surface, and the vaporization surface is located on the second surface.   
     
     
         5 . The vaporization core of  claim 1 , wherein the porous substrate has a first surface, a second surface, and a side surface, the second surface is opposite the first surface, and the side surface is connected to the first surface and the second surface, and
 wherein the air outlet surface is located on the side surface, the air inlet surface and the vaporization surface are located on the second surface, and the liquid absorbing surface is located on the first surface and/or the side surface.   
     
     
         6 . The vaporization core of  claim 1 , wherein the porous substrate has a first surface, a second surface, and a side surface, the second surface is opposite the first surface, and the side surface is connected to the first surface and the second surface, and
 wherein both the air inlet surface and the air outlet surface are located on the side surface, the vaporization surface is located on the second surface, and the liquid absorbing surface is located on the first surface and/or the side surface.   
     
     
         7 . The vaporization core of  claim 1 , wherein the porous substrate has a first surface and a second surface opposite the first surface, the air inlet surface and the air outlet surface are both located on the first surface, the liquid absorbing surface is located on the first surface and/or the side surface, the vent part is spaced from the second surface, and the vaporization surface is located on the second surface. 
     
     
         8 . The vaporization core of  claim 2 , wherein the vent part is arranged in an annular shape around the outer surface of the liquid guide part, or
 wherein a plurality of vent parts are circumferentially spaced along the side surface of the porous substrate.   
     
     
         9 . The vaporization core of  claim 2 , wherein the porous substrate has a side surface, and two opposite sides of the side surface are respectively connected to the first surface and the second surface, and
 wherein the vent part is spaced from the side surface.   
     
     
         10 . The vaporization core of  claim 1 , wherein the liquid guide part comprises a body and a protrusion of an integrated structure, the body is provided with a groove, the heating element is disposed on the side of the protrusion facing away from the groove, and the vent part is disposed on an outer surface of the body. 
     
     
         11 . The vaporization core of  claim 1 , wherein the porous substrate comprises an integrally formed component. 
     
     
         12 . A vaporizer, comprising:
 the vaporization core of  claim 1 ; and   a liquid storage cavity formed in the vaporizer,   wherein the liquid absorbing surface and the air outlet surface are exposed to the liquid substrate in communication with the liquid storage cavity.   
     
     
         13 . An electronic vaporization device, comprising:
 a power supply component; and   the vaporizer of  claim 12 ,   wherein the power supply component is electrically connected to the vaporizer and is configured to supply power to the vaporization core of the vaporizer.