# US 10,869,507 B2 · Electronic cigarette and atomizer thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,507 B2 - Document ID: US10869507B2 - Status: Granted - Kind: B2 - Application number: 15/990,553 - Filed: 2018-05-25 - Published: 2018-11-29 - Granted: 2020-12-22 - Earliest claimed: 2017-05-27 - Assignees: Shenzhen First Union Technology Co., Ltd. - Applicants: Shenzhen First Union Technology Co., Ltd. - Inventors: Min Zheng; Zhongli Xu; Yonghai Li - Web page: https://patentgrep.com/patent/US10869507B2 ## CPC - H05B 1/0227: {Applications} - A24F 40/46: Shape or structure of electric heating means - A24F 40/48: Fluid transfer means, e.g. pumps - A24F 40/485: Valves; Apertures - H05B 3/44: heating conductor arranged within rods or tubes of insulating material - H05B 3/48: heating conductor embedded in insulating material - A24F 40/10: Devices using liquid inhalable precursors - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) ## Abstract An atomizer in an electronic cigarette is disclosed including an aerosol outlet tube; an air inlet tube; a heating element; an atomizing shell and a heating base; the air inlet tube is sleeved on the aerosol outlet tube and a first air inlet passage is formed between the air inlet tube and the aerosol outlet tube; a first aerosol outlet passage is formed inside the aerosol outlet tube; the heating element is disposed in the heating base; the atomizing shell is sleeved on the heating base; a second air inlet passage and a second aerosol outlet passage are spaced and arranged between the atomizing shell and the heating base, along a circumferential direction of the heating base; the first air inlet passage and the second air inlet passage are communicated to allow exterior air to pass through then to flow into the heating base. ## Claims ### Claim 1 An atomizer for an electronic cigarette comprising: an aerosol outlet tube; an air inlet tube; a heating element; an atomizing shell and a heating base; wherein, the air inlet tube is sleeved on the aerosol outlet tube and a first air inlet passage is formed between the air inlet tube and the aerosol outlet tube; a first aerosol outlet passage is formed inside the aerosol outlet tube; the heating element is disposed in the heating base; the atomizing shell is sleeved on the heating base; wherein, a second air inlet passage and a second aerosol outlet passage are spaced and arranged between the atomizing shell and the heating base, along a circumferential direction of the heating base; the first air inlet passage and the second air inlet passage are communicated with each other to allow exterior air to pass through and then to flow into the heating base; the first aerosol outlet passage and the second aerosol outlet passage are communicated with each other to allow the aerosol aerosolized by the heating element inside the heating base to pass through and then to flow out. ### Claim 2 (depends on 1) The atomizer according to claim 1, wherein the heating base and the atomizing shell are all cylindrical structures, and an outer circumferential surface of the heating base is divided along the circumferential direction thereof into an aerosol outlet area, an air inlet area and an abutting area; the aerosol outlet area and the air inlet area are separated by the abutting area; the abutting area abuts the atomizing shell; a clearance is formed between the aerosol outlet area and the atomizing shell to form the second air inlet passage and a clearance is formed between the air inlet area and the atomizing shell to form the second aerosol outlet passage. ### Claim 3 (depends on 2) The atomizer according to claim 2, wherein the abutting area is a curved surface, a diameter of the curved surface is equal to an inner diameter of the atomizing shell; the aerosol outlet area and the air inlet area are tangent planes set along an axial direction of the heating base. ### Claim 4 (depends on 2) The atomizer according to claim 2, wherein the heating base comprises an air inlet and an aerosol outlet respectively corresponding with the air inlet area and the aerosol outlet area, allowing exterior air inputted by the first air inlet passage and the second air inlet passage to flow into the heating base via the air inlet, as well as allowing the aerosol aerosolized in the heating base to flow into the second aerosol outlet passage and the first aerosol outlet passage via the aerosol outlet. ### Claim 5 (depends on 2) The atomizer according to claim 2, wherein the atomizer further comprises an atomizing shell cover, disposed at an end of the atomizing shell toward the aerosol outlet tube and the air inlet tube; the atomizing shell cover has a first hole; an end of the air inlet tube abuts outside the first hole, the aerosol outlet tube extends into the atomizing shell via the first hole; a clearance is formed between an outer surface of the aerosol tube and a side surface of the first hole, to allow the exterior air inputted by the first air inlet passage to pass through and then to flow into the atomizing shell. ### Claim 6 (depends on 5) The atomizer according to claim 5, wherein the atomizing shell cover has a flange disposed outside of the first hole; an end of the air inlet tube and the flange are elastically coupled with each other in a plug-in manner. ### Claim 7 (depends on 5) The atomizer according to claim 5, wherein the atomizer further comprises a sealing element, the sealing element is partially disposed in the atomizing shell and abuts between the heating base and the aerosol outlet tube; the sealing element has a second hole communicated with the first aerosol outlet passage; a surface of the heating base abutting the sealing element or a surface of the sealing element abutting the heating base has a groove, the groove is configured for communicating the second aerosol outlet passage and the second hole; the sealing element is further configured to seal the second aerosol outlet passage but expose the second air inlet passage, thus allowing the exterior air inputted by the first air inlet passage to flow into the second air inlet passage, while allowing the aerosol outputted by the second aerosol outlet passage to flow into the groove, and then to flow into the first aerosol outlet passage via the second hole. ### Claim 8 (depends on 2) The atomizer according to claim 2, wherein the atomizer further comprises a housing, sleeved on the atomizing shell, a liquid storage chamber is formed between the housing and the atomizing shell; the atomizing shell and the heating base corresponding to the abutting area have an liquid inlet, allowing the tobacco liquid from the liquid storage chamber to flow into the heating base via the liquid inlet. ### Claim 9 (depends on 8) The atomizer according to claim 8, wherein the atomizer further comprises an absorbing body abutting between the heating element and the heating base, and configured for absorbing the tobacco liquid from the liquid inlet and supplying the tobacco liquid to the heating element for aerosolizing. ### Claim 10 An electronic cigarette comprising: an atomizer comprising: an aerosol outlet tube; an air inlet tube; a heating element; an atomizing shell and a heating base; wherein, the air inlet tube is sleeved on the aerosol outlet tube and a first air inlet passage is formed between the air inlet tube and the aerosol outlet tube; a first aerosol outlet passage is formed inside the aerosol outlet tube; the heating element is disposed in the heating base; the atomizing shell is sleeved on the heating base; wherein, a second air inlet passage and a second aerosol outlet passage are spaced and arranged between the atomizing shell and the heating base, along a circumferential direction of the heating base; the first air inlet passage and the second air inlet passage are communicated with each other to allow exterior air to pass through and then to flow into the heating base; the first aerosol outlet passage and the second aerosol outlet passage are communicated with each other to allow the aerosol aerosolized by the heating element inside the heating base to pass through and then to flow out. ### Claim 11 (depends on 10) The electronic cigarette according to claim 10, wherein the heating base and the atomizing shell are all cylindrical structures, and an outer circumferential surface of the heating base is divided along the circumferential direction thereof into an aerosol outlet area, an air inlet area and an abutting area; the aerosol outlet area and the air inlet area are separated by the abutting area; the abutting area abuts the atomizing shell; a clearance is formed between the aerosol outlet area and the atomizing shell to form the second air inlet passage and a clearance is formed between the air inlet area and the atomizing shell to form the second aerosol outlet passage. ### Claim 12 (depends on 11) The electronic cigarette according to claim 11, wherein the abutting area is a curved surface, a diameter of the curved surface is equal to an inner diameter of the atomizing shell; the aerosol outlet area and the air inlet area are tangent planes set along an axial direction of the heating base. ### Claim 13 (depends on 11) The electronic cigarette according to claim 11, wherein the heating base comprises an air inlet and an aerosol outlet respectively corresponding with the air inlet area and the aerosol outlet area, allowing exterior air inputted by the first air inlet passage and the second air inlet passage to flow into the heating base via the air inlet, as well as allowing the aerosol aerosolized in the heating base to flow into the second aerosol outlet passage and the first aerosol outlet passage via the aerosol outlet. ### Claim 14 (depends on 11) The electronic cigarette according to claim 11, wherein the atomizer further comprises an atomizing shell cover, disposed at an end of the atomizing shell toward the aerosol outlet tube and the air inlet tube; the atomizing shell cover has a first hole; an end of the air inlet tube abuts outside the first hole, the aerosol outlet tube extends into the atomizing shell via the first hole; a clearance is formed between an outer surface of the aerosol tube and a side surface of the first hole, to allow the exterior air inputted by the first air inlet passage to pass through and then to flow into the atomizing shell. ### Claim 15 (depends on 14) The electronic cigarette according to claim 14, wherein the atomizing shell cover has a flange disposed outside of the first hole; an end of the air inlet tube and the flange are elastically coupled with each other in a plug-in manner. ### Claim 16 (depends on 14) The electronic cigarette according to claim 14, wherein the atomizer further comprises a sealing element, the sealing element is partially disposed in the atomizing shell and abuts between the heating base and the aerosol outlet tube; the sealing element has a second hole communicated with the first aerosol outlet passage; a surface of the heating base abutting the sealing element or a surface of the sealing element abutting the heating base has a groove, the groove is configured for communicating the second aerosol outlet passage and the second hole; the sealing element is further configured to seal the second aerosol outlet passage but expose the second air inlet passage, thus allowing the exterior air inputted by the first air inlet passage to flow into the second air inlet passage, while allowing the aerosol outputted by the second aerosol outlet passage to flow into the groove, and then to flow into the first aerosol outlet passage via the second hole. ### Claim 17 (depends on 11) The electronic cigarette according to claim 11, wherein the atomizer further comprises a housing, sleeved on the atomizing shell, a liquid storage chamber is formed between the housing and the atomizing shell; the atomizing shell and the heating base corresponding to the abutting area have an liquid inlet, allowing the tobacco liquid from the liquid storage chamber to flow into the heating base via the liquid inlet. ### Claim 18 (depends on 17) The electronic cigarette according to claim 17, wherein the atomizer further comprises an absorbing body abutting between the heating element and the heating base, and configured for absorbing the tobacco liquid from the liquid inlet and supplying the tobacco liquid to the heating element for aerosolizing.