Heating body, vaporizer, and electronic vaporization device

Abstract

A heating body for an electronic vaporization device having an aerosol-generation substrate is disclosed. The heating body comprises a dense substrate comprising a liquid absorbing surface and a vaporization surface arranged opposite to each other. The dense substrate further comprises a plurality of micropores arranged through the liquid absorbing surface and the vaporization surface. The vaporization surface is a wetting structure that is surface treated. The wetting structure is in communication with the plurality of micropores in a liquid guiding manner.

What is claimed is: 
     
         1 . A heating body for an electronic vaporization device having an aerosol-generation substrate, the heating body comprising:
 a dense substrate comprising a liquid absorbing surface and a vaporization surface arranged opposite to each other, the dense substrate further comprising a plurality of micropores arranged through the liquid absorbing surface and the vaporization surface, wherein:   the vaporization surface is a wetting structure that is surface treated, and   the wetting structure is in communication with the plurality of micropores in a liquid guiding manner.   
     
     
         2 . The heating body according to  claim 1 , wherein:
 the vaporization surface comprises a first concave-convex structure to form the wetting structure,   the first concave-convex structure comprises a plurality of first grooves, and   the plurality of first grooves are in communication with the plurality of micropores in a liquid guiding manner.   
     
     
         3 . The heating body according to  claim 2 , wherein:
 the plurality of first grooves are arranged in parallel to each other, and a length direction of each of the plurality of first grooves is in parallel to a first direction, and a first protruding bar is arranged between two adjacent first grooves; or   the plurality of first grooves are arranged in parallel to each other, and the length direction of each of the plurality of first grooves is in parallel to a second direction, and a second protruding bar is arranged between two adjacent first grooves; or   the plurality of first grooves comprise a plurality of first sub-grooves extending in the first direction and a plurality of second sub-grooves extending in the second direction, and the plurality of first sub-grooves and the plurality of second sub-grooves are provided in an intersecting manner, and a bump is arranged between two adjacent first sub-grooves and between two adjacent second sub-grooves, wherein   the second direction intersects with the first direction.   
     
     
         4 . The heating body according to  claim 3 , wherein the plurality of first grooves comprise the plurality of first sub-grooves and the plurality of second sub-grooves, and the plurality of first sub-grooves cooperate with the plurality of second sub-grooves to form a plurality of bumps distributed in an array. 
     
     
         5 . The heating body according to  claim 4 , wherein:
 the plurality of first grooves include bottom surfaces have disposed thereon a plurality of end openings of the plurality of micropores that are away from the liquid absorbing surface; or   The plurality of bumps include end surfaces that are away from the liquid absorbing surface have disposed thereon the plurality of end openings of the plurality of micropores; or   a part of the plurality of end openings of the plurality of micropores that are away from the liquid absorbing surface are provided on the bottom surfaces of the plurality of first grooves, and the other part are provided on the end surfaces of the plurality of bumps that are away from the liquid absorbing surface.   
     
     
         6 . The heating body according to  claim 5 , wherein:
 the plurality of end openings of the plurality of micropores that are away from the liquid absorbing surface are provided on the bottom surfaces of the plurality of first grooves,   the plurality of micropores are distributed in an array,   each of the plurality of first sub-grooves corresponds to one row of micropores,   each of the plurality of second sub-grooves correspond to one column of micropores,   a plurality of rows of bumps and a plurality of rows of micropores are provided alternately, and   a plurality of columns of bumps and a plurality of columns of micropores are provided alternately.   
     
     
         7 . The heating body according to  claim 1 , further comprising a heating film arranged on a surface of the wetting structure and configured to heat and vaporize the aerosol-generation substrate, wherein the heating film exposes corresponding micropores. 
     
     
         8 . The heating body according to  claim 3 , further comprising a heating film having a first part, a second part, a third part, and a fourth part, wherein:
 the first part is arranged on a side wall and a bottom wall of each of the plurality of first sub-grooves,   the second part is arranged on a side wall and a bottom wall of each of the plurality of second sub-grooves,   the third part is arranged on an end surface of each of the plurality of bumps that is away from the liquid absorbing surface, and   the fourth part extends to a pore wall of a corresponding micropore.   
     
     
         9 . The heating body according to  claim 2 , wherein a width of each of the plurality of first grooves ranges from 1 μm to 100 μm. 
     
     
         10 . The heating body according to  claim 2 , wherein a width of each of the plurality of first grooves is less than or equal to 1.2 times of a pore size of each of the plurality of micropores. 
     
     
         11 . The heating body according to  claim 2 , wherein a depth of each of the plurality of first grooves ranges from 1 μm to 200 μm. 
     
     
         12 . The heating body according to  claim 11 , wherein the depth of each of the plurality of first grooves ranges from 1 μm to 50 μm. 
     
     
         13 . The heating body according to  claim 1 , wherein:
 the plurality of micropores are provided in an array having columns of micropore parallel to a first direction,   the wetting structure comprises a plurality of first sub-grooves each extending in parallel to the first direction, and   each of the plurality of first sub-grooves at least corresponds to one of the columns of array parallel to the first direction.   
     
     
         14 . The heating body according to  claim 13 , wherein:
 the plurality of micropores are arranged in columns parallel to a second direction,   the wetting structure comprises a plurality of second sub-grooves,   an extending direction of each of the plurality of second sub-grooves is parallel to the second direction,   each of the plurality of second sub-grooves at least corresponds to one of the columns of micropores parallel to the second direction, and   the plurality of first sub-grooves and the plurality of second sub-grooves are communicated in an intersecting manner to form a mesh structure.   
     
     
         15 . The heating body according to  claim 7 , wherein:
 the heating body further comprises a positive electrode and a negative electrode,   two ends of the heating film are respectively electrically connected to the positive electrode and the negative electrode,   the first direction is a direction approaching the negative electrode and along the positive electrode.   
     
     
         16 . The heating body according to  claim 7 , wherein a surface of the heating film includes one of a lipophilic structure, a scrubbing structure, or a sandblasting structure. 
     
     
         17 . The heating body according to  claim 7 , wherein:
 a thickness of the heating film ranges from 200 nm to 5 μm, and   the heating film is made of one or more of aluminum and alloy thereof, copper and alloy thereof, silver and alloy thereof, nickel and alloy thereof, chromium and alloy thereof, platinum and alloy thereof, titanium and alloy thereof, zirconium and alloy thereof, palladium and alloy thereof, iron and alloy thereof, gold and alloy thereof, molybdenum and alloy thereof, niobium and alloy thereof, or tantalum and alloy thereof.   
     
     
         18 . The heating body according to  claim 7 , wherein a thickness of the heating film ranges from 200 nm to 10 μm, and the heating film is made of one or more of stainless steel, nickel-chromium iron alloy, or nickel-based corrosion-resistant alloy. 
     
     
         19 . The heating body according to  claim 1 , wherein the wetting structure includes at least one of a scrubbing structure or a sandblasting structure. 
     
     
         20 . The heating body according to  claim 1 , wherein the liquid absorbing surface is a scrubbing structure or a sandblasting structure. 
     
     
         21 . The heating body according to  claim 1 , wherein the liquid absorbing surface comprises a second concave-convex structure having a plurality of second grooves that are in communication with the plurality of micropores in a liquid guiding manner. 
     
     
         22 . The heating body according to  claim 1 , wherein the dense substrate is made of at least one of quartz, glass, or dense ceramic, and the plurality of micropores are ordered. 
     
     
         23 . The heating body according to  claim 1 , wherein the plurality of micropores are straight through holes, and an axis of each of the plurality of micropores is perpendicular to the dense substrate. 
     
     
         24 . The heating body according to  claim 1 , further comprising a liquid guiding member, wherein the liquid guiding member and the liquid absorbing surface of the dense substrate are in contact with each or are spaced to form a gap. 
     
     
         25 . The heating body according to  claim 24 , wherein:
 the liquid guiding member includes a porous ceramic or a cotton core, or   the liquid guiding member is made of a dense material and has a plurality of through holes disposed therein.   
     
     
         26 . The heating body according to  claim 1 , wherein:
 a plurality of transverse holes are further provided in the dense substrate,   the plurality of transverse holes communicate the plurality of micropores, and   an axis of each of the plurality of transverse holes intersects with an axis of each of the plurality of micropores.   
     
     
         27 . A vaporizer, comprising:
 a liquid storage cavity configured to store an aerosol-generation substrate; and   a heating body in fluid communication with the liquid storage cavity, the heating body comprising:
 a dense substrate comprising a liquid absorbing surface and a vaporization surface arranged opposite to each other, the dense substrate further comprising a plurality of micropores arranged through the liquid absorbing surface and the vaporization surface, wherein: 
 the vaporization surface is a wetting structure that is surface treated, and 
 the wetting structure is in communication with the plurality of micropores in a liquid guiding manner. 
   
     
     
         28 . An electronic vaporization device, comprising:
 a vaporizer; and   a main unit, configured to supply electric energy for operation of the vaporizer, wherein the vaporizer comprises:
 a liquid storage cavity configured to store an aerosol-generation substrate; and 
 a heating body in fluid communication with the liquid storage cavity, the heating body comprising:
 a dense substrate comprising a liquid absorbing surface and a vaporization surface arranged opposite to each other, the dense substrate further comprising a plurality of micropores arranged through the liquid absorbing surface and the vaporization surface, wherein: 
 the vaporization surface is a wetting structure that is surface treated, and 
 
 the wetting structure is in communication with the plurality of micropores in a liquid guiding manner.