# US 2023/0141848 A1 · Aerosol generating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0141848 A1 - Document ID: US20230141848A1 - Status: Published application - Kind: A1 - Application number: 16/971,930 - Filed: 2020-04-23 - Published: 2023-05-11 - Earliest claimed: 2019-04-25 - Assignees: Kt&G Corporation - Applicants: Kt&G Corporation - Inventors: Sung Wook YOON - Web page: https://patentgrep.com/patent/US20230141848A1 ## CPC - A24F 40/46: Shape or structure of electric heating means - A24F 40/48: Fluid transfer means, e.g. pumps - A24F 40/90: Arrangements or methods specially adapted for charging batteries thereof - A24F 40/20: Devices using solid inhalable precursors - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract An aerosol generating device may include a heater configured to heat an aerosol generating article; a heater flange supporting one end of the heater; a heat barrier coupled to the heater flange and surrounding the heater without contact; and a housing accommodating the heater and the heat barrier, wherein a fastening member is formed on one of the heater flange and the heat barrier, and an accommodating portion for accommodating the fastening member is formed on the other of the heater flange and the heat barrier, and wherein the heater flange and the heat barrier are coupled to each other by the fastening member and the accommodating portion. ## Claims ### Claim at position 1 1: An aerosol generating device comprising: a heater configured to heat an aerosol generating article; a heater flange supporting one end of the heater; a heat barrier coupled to the heater flange and surrounding the heater without contact; and a housing accommodating the heater and the heat barrier, wherein a fastening member is formed on one of the heater flange and the heat barrier, and an accommodating portion accommodating the fastening member is formed on the other of the heater flange and the heat barrier, and wherein the heater flange and the heat barrier are coupled to each other by the fastening member and the accommodating portion. ### Claim at position 2 (depends on 1) 2: The aerosol generating device of claim 1, wherein an O-ring is disposed between the heat barrier and the heater flange such that fluid is prevented from leaking between the heat barrier and the heater flange. ### Claim at position 3 (depends on 1) 3: The aerosol generating device of claim 1, wherein the fastening member is a protrusion formed on an outer circumferential surface of the heater flange, and the accommodating portion is a groove formed on an inner circumferential surface of the heat barrier. ### Claim at position 4 (depends on 1) 4: The aerosol generating device of claim 1, wherein the fastening member is a protrusion formed on an inner circumferential surface of the heat barrier, and the accommodating portion is a groove formed on an outer circumferential surface of the heater flange. ### Claim at position 5 (depends on 1) 5: The aerosol generating device of claim 1, wherein the accommodating portion is formed in an extension portion extending from an end of the heat barrier such that a portion of the heater flange is exposed out of the heat barrier when the heater flange is coupled to the heat barrier, and the fastening member is formed at a position corresponding to the accommodating portion, on an outer circumferential surface of the heater flange. ### Claim at position 6 (depends on 1) 6: The aerosol generating device of claim 1, wherein a length of the heat barrier in a longitudinal direction of the heat barrier is 1 to 3 times a length of the heater in the longitudinal direction. ### Claim at position 7 (depends on 1) 7: The aerosol generating device of claim 1, wherein the heat barrier has a tube shape including a first wall facing the heater and a second wall facing the housing, and a space between the first wall and the second wall of the heat barrier is in a vacuum state. ### Claim at position 8 (depends on 1) 8: The aerosol generating device of claim 1, wherein the heat barrier includes at least one of graphite, ceramic, carbon nanotube, and glass fiber. ### Claim at position 9 (depends on 1) 9: The aerosol generating device of claim 1, further comprising a tubular member disposed between the heat barrier and the housing, and configured to block heat transfer from the heat barrier to the housing. ### Claim at position 10 (depends on 9) 10: The aerosol generating device of claim 9, wherein the tubular member is a pipe including aluminum. ### Claim at position 11 (depends on 9) 11: The aerosol generating device of claim 9, wherein an air gap is formed between the tubular member and the housing. ### Claim at position 12 (depends on 1) 12: The aerosol generating device of claim 1, wherein an air flow channel for fluid communication between outside of the housing and inside of the heat barrier is formed in the housing, wherein the air flow channel includes an air inlet located between an inner wall and an outer wall of the housing. ### Claim at position 13 (depends on 1) 13: An aerosol generating system comprising: the aerosol generating device according to claim 1; and a cradle configured to charge a battery of the aerosol generating device when combined with the aerosol generating device.