Atomizing device and electronic cigarette having same

Abstract

An atomizing device of electronic cigarette is provided. The atomizing device includes an atomizing sleeve, a liquid reserving member and a heating coil fixed in the atomizing device, a mouthpiece, a screw sleeve, an electrode ring fixed in the screw sleeve, an insulted ring arranged between the screw sleeve and the electrode ring. The mouthpiece and the screw sleeve are respectively engaged to two ends of the atomizing sleeve tightly, and each of two ends of the heating coil respectively connects to the screw sleeve and the electrode ring. The liquid reserving member includes at least two layers with different densities. An electronic cigarette included the atomizing device is also disclosed.

What is claimed is: 
     
         1 . An atomizing device of an electronic cigarette, comprising:
 an atomizing sleeve;   a liquid reserving member received in the atomizing sleeve;   a heating coil received in the atomizing sleeve;   a mouthpiece;   a screw sleeve;   an electrode ring fixed in the screw sleeve;   an insulted ring arranged between the screw sleeve and the electrode ring;   wherein the mouthpiece and the screw sleeve are respectively engaged to two ends of the atomizing sleeve tightly, two ends of the heating coil are respectively connected to the screw sleeve and the electrode ring, the liquid reserving member comprises at least two layers with different densities.   
     
     
         2 . The atomizing device of electronic cigarette of  claim 1 , wherein the liquid reserving member comprises a first layer made of a cotton cloth and a second layer made of liquid absorbing cotton, and the first layer is denser but thinner than the second layer. 
     
     
         3 . The atomizing device of electronic cigarette of  claim 1 , wherein a knurling is formed at an outer wall of the screw sleeve and an external surface of the knurling is coated with a sealant to be connected to the atomizing sleeve tightly. 
     
     
         4 . The atomizing device of electronic cigarette of  claim 1 , wherein a space is formed between the mouthpiece and the liquid reserving member. 
     
     
         5 . The atomizing device of electronic cigarette of  claim 2 , further comprising an air pipe, wherein the liquid reserving member wraps around the air pipe and the first layer of the liquid reserving member with denser density directly wraps around the external surface of the air pipe. 
     
     
         6 . The atomizing device of electronic cigarette of  claim 5 , wherein the air pipe is connected to the screw sleeve, one end of the air pipe which is connected to the screw sleeve includes at least two connectors, a space is formed between the connectors; a ring-shaped groove is formed on the screw sleeve, and the connectors are inserted into the ring-shaped groove; two wedges are arranged in the ring-shaped groove via interference fit and press tightly on the external surface of the corresponding connectors. 
     
     
         7 . The atomizing device of electronic cigarette of  claim 1 , wherein the screw sleeve comprises one part having a knurling connected to the atomizing sleeve and another part having an outer screw. 
     
     
         8 . The atomizing device of electronic cigarette of  claim 7 , wherein the knurling is unified at an outer wall of the screw sleeve, and an inner screw is formed at an internal surface of the screw sleeve. 
     
     
         9 . The atomizing device of electronic cigarette of  claim 1 , a peripheral wall of the screw sleeve comprises a plurality of air channels. 
     
     
         10 . An electronic cigarette comprising the atomizing device of  claim 1 , and a battery assembly electronically connected to the atomizing device.