Atomizer and e-cigarette comprising the same

Abstract

An atomizer, including an end cover, the end cover including a main body. The main body includes an outer peripheral wall, and the outer peripheral wall includes an annular recess for air circulation. The annular recess includes a wall including an air inlet and/or an air vent.

What is claimed is: 
     
         1 . An atomizer, comprising an end cover, the end cover comprising a main body; the main body comprising an outer peripheral wall, and the outer peripheral wall comprising an annular recess for air circulation; and the annular recess comprising a wall comprising an air inlet and/or an air vent. 
     
     
         2 . The atomizer of  claim 1 , wherein the main body further comprises an air passage; the air inlet communicates with the air passage; the air passage extends from a proximal end toward a distal end of the main body; and a first tube is disposed on the distal end of the main body and communicates with the air passage. 
     
     
         3 . The atomizer of  claim 1 , wherein the main body further comprises an air hole through which external air flows into the annular recess. 
     
     
         4 . The atomizer of  claim 2 , wherein the air hole extends from the proximal end of the main body into the annular recess; and a second tube is disposed on the wall of the annular recess and communicates with the air hole. 
     
     
         5 . The atomizer of  claim 4 , wherein the main body further comprises an e-liquid channel communicating with the air vent disposed on the wall of the annular recess. 
     
     
         6 . The atomizer of  claim 5 , wherein the e-liquid channel is disposed on the distal end of the main body and comprises an open end communicating with an e-liquid tank and a blind end; and a third tube is disposed on the distal end of the main body and communicates with the e-liquid channel. 
     
     
         7 . The atomizer of  claim 1 , wherein the wall of the annular recess further comprises a first recess and the air vent communicates with the first recess. 
     
     
         8 . The atomizer of  claim 7 , wherein a side wall of the first recess comprises an air channel extending along a depth direction of the first recess. 
     
     
         9 . The atomizer of  claim 8 , wherein the air vent is disposed on the side wall of the first recess and a second recess is disposed on a bottom wall of the first recess; one end of the second recess communicates with the air vent and the other end of the second recess communicates with the air channel; or the air vent is disposed on the bottom wall of the first recess and communicates with the air channel. 
     
     
         10 . The atomizer of  claim 8 , wherein the air channel is less than or equal to 0.5 mm in depth and is less than or equal to 3 mm in width. 
     
     
         11 . The atomizer of  claim 1 , wherein a cross-sectional area of the air vent is less than or equal to 7 mm 2 . 
     
     
         12 . The atomizer of  claim 1 , wherein the main body further comprises a first fill hole extending from the proximal end toward the distal end of the main body. 
     
     
         13 . The atomizer of  claim 2 , wherein the atomizer further comprises an e-liquid tank; the main body is disposed on one end of the e-liquid tank; and the annular recess and an inside wall of the e-liquid tank forms a closed space; or the end cover comprises a seal wall for sealing the annular recess of the main body; the seal wall is integrated with or detachably connected to the main body; and the end cover is connected to one end of the e-liquid tank. 
     
     
         14 . The atomizer of  claim 13 , wherein the atomizer further comprises an atomizing assembly comprising a hollow position limiter and a heating element; one end of the hollow position limiter is disposed in the air passage and the other end of the hollow position limiter is disposed in the e-liquid tank; the hollow position limiter comprises at least one second fill hole; the at least one second fill hole is in the e-liquid tank; the heating element is disposed in the hollow position limiter and is opposite to the at least one second fill hole. 
     
     
         15 . The atomizer of  claim 14 , wherein a proximal end of the air passage is sealed with a holder; the holder is disposed on one end of the hollow position limiter and the heating element is fixedly disposed on the holder; the heating element comprises a pin; one end of the holder away from the hollow position limiter comprises a fastener, and the pin of the heating element is fixed on the fastener. 
     
     
         16 . The atomizer of  claim 14 , wherein the e-liquid tank comprises a mouthpiece and a vapor channel communicating with the mouthpiece; one end of the position limiter abuts against the vapor channel, and is disposed in or outside the vapor channel. 
     
     
         17 . The atomizer of  claim 7 , wherein an absorber is disposed in the air vent or is disposed on the bottom wall of the first recess. 
     
     
         18 . The atomizer of  claim 17 , wherein a filling plug is disposed in the bottom wall of the first recess and is disposed on the absorber. 
     
     
         19 . The atomizer of  claim 16 , wherein a first seal is disposed on the distal end of the main body to seal a gap between the main body and the end cover; a second seal is disposed between an inner wall of the air passage and an outer wall of the position limiter; a third seal is disposed between the vapor channel and the position limiter; an oil plug is disposed on the first fill hole; and a protective cover is disposed on the proximal end of the main body. 
     
     
         20 . An electronic cigarette, comprising the atomizer of  claim 1  and a battery assembly.