Atomizer and electronic cigarette comprising the same

Abstract

An atomizer includes an outer glass tube, a heating element, and an inner glass tube. The inner glass tube is disposed in and is integrated with the outer glass tube; the inner wall of the outer glass tube and the outer wall of the inner glass tube form a cavity for accommodating e-liquid. The heating element is disposed in the outer glass tube and below the inner glass tube and the cavity; and when in use, the heating element atomizes the e-liquid to produce vapor flowing from the inner glass tube to the outer glass tube for inhaling by a user.

What is claimed is: 
     
         1 . An atomizer, comprising an outer glass tube, a heating element, and an inner glass tube; wherein the inner glass tube is disposed in and is integrated with the outer glass tube; an inner wall of the outer glass tube and an outer wall of the inner glass tube form a cavity for accommodating e-liquid; the heating element is disposed in the outer glass tube and below the inner glass tube and the cavity; and when in use, the heating element atomizes the e-liquid to produce vapor flowing from the inner glass tube to the outer glass tube for inhaling by a user. 
     
     
         2 . The atomizer of  claim 1 , wherein the heating element is in the shape of a hollow round cake, and an edge of an upper surface of the round cake is provided with a plurality of grooves as air outlets. 
     
     
         3 . The atomizer of  claim 2 , wherein one end of the outer glass tube is provided with a fixing sleeve; the fixing sleeve comprises at least one notch; the heating element is disposed in the fixing sleeve and the plurality of grooves is partially covered by the fixing sleeve; the plurality of grooves is below the at least one notch; and the cavity for accommodating e-liquid is above the at least one notch. 
     
     
         4 . The atomizer of  claim 1 , wherein the atomizer further comprises a first silica ring; the first silica ring is hollow and disposed between the heating element and a bottom end of the inner glass tube; a central hollow part of the first silica ring, a central hollow part of the heating element and the inner glass tube communicates with one another to function as an air passage. 
     
     
         5 . The atomizer of  claim 3 , wherein the atomizer further comprises a leak-proof ring disposed in the fixing sleeve and below the heating element to fix and support the heating element. 
     
     
         6 . The atomizer of  claim 3 , wherein the atomizer further comprises a fixed ring and a base; the fixed ring is screwed on the base to support the outer glass tube; a bottom end of the outer glass tube and the fixing sleeve are both disposed on the base. 
     
     
         7 . The atomizer of  claim 6 , wherein the base comprises a plurality of air inlets. 
     
     
         8 . An electronic cigarette, comprising the atomizer of  claim 1  and a battery assembly.