# US 11,998,053 B2 · Aerosol-generating device and aerosol-generating system including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,053 B2 - Document ID: US11998053B2 - Status: Granted - Kind: B2 - Application number: 17/267,543 - Filed: 2020-12-08 - Published: 2022-12-29 - Granted: 2024-06-04 - Earliest claimed: 2019-12-17 - Assignees: Kt&G Corporation - Applicants: Kt&G Corporation - Inventors: Sung Wook Yoon; Yong Hwan Kim; Seung Won Lee; Dae Nam Han - Web page: https://patentgrep.com/patent/US11998053B2 ## CPC - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 40/465: specially adapted for induction heating - A24F 40/20: Devices using solid inhalable precursors - H05B 6/105: {using a susceptor} - H05B 6/108: {for heating a fluid} - A24F 40/46: Shape or structure of electric heating means - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract An aerosol-generating device includes a housing having an opening configured to receive an aerosol-generating article; an accommodating space configured to accommodate the aerosol-generating article inserted through the opening; a heat-dissipating structure comprising an inner wall forming the accommodating space, and an outer wall surrounding the inner wall such that an inner space is formed between the inner wall and the outer wall; and a coil arranged between the outer wall and the housing, and configured to generate an induced magnetic field, wherein the inner wall is configured to generate heat by the induced magnetic field generated from the coil. ## Claims ### Claim 1 An aerosol-generating device comprising: a housing having an opening configured to receive an aerosol-generating article; an accommodating space configured to accommodate the aerosol-generating article inserted through the opening; a heat-dissipating structure comprising an inner wall forming the accommodating space, and an outer wall surrounding the inner wall such that an inner space is formed between the inner wall and the outer wall; and a coil arranged between the outer wall and the housing, and configured to generate an induced magnetic field, wherein the inner wall is configured to generate heat based on the induced magnetic field, wherein the heat-dissipating structure has an upper wall and a lower wall which connect the outer wall and the inner wall, wherein the inner space of the heat-dissipating structure is a vacuum space such that heat is prevented from being transferred from the inner wall to the outer wall, and wherein the lower wall forms a closed bottom of the heat-dissipating structure, the lower wall of the heat-dissipating structure has a multi-wall structure, and a vacuum space is formed in the lower wall to prevent the heat generated by the inner wall from being transferred through the lower wall. ### Claim 2 (depends on 1) The aerosol-generating device of claim 1, wherein the inner wall comprises an extending portion extending into each of the upper wall and the lower wall. ### Claim 3 (depends on 2) The aerosol-generating device of claim 2, wherein the extending portion is formed along a circumference direction of the upper wall and the lower wall. ### Claim 4 (depends on 3) The aerosol-generating device of claim 3, wherein the extending portion includes a portion extending in a longitudinal direction that is a direction in which the aerosol-generating article is inserted. ### Claim 5 (depends on 1) The aerosol-generating device of claim 1, wherein the lower wall covers a gap between the inner wall and the outer wall at a bottom of the heat-dissipating structure. ### Claim 6 (depends on 1) The aerosol-generating device of claim 1, wherein the outer wall of the heat-dissipating structure is made of a non-metal material. ### Claim 7 An aerosol-generating device comprising: a housing having an opening configured to receive an aerosol-generating article; an accommodating space configured to accommodate the aerosol-generating article inserted through the opening; a heat-dissipating structure comprising an inner wall and an outer wall that surrounds the inner wall such that an inner space is formed between the inner wall and the outer wall; a coil arranged in the heat-dissipating structure and configured to generate an induced magnetic field; and a susceptor configured to generate heat based on the induced magnetic field, and arranged to surround the accommodating space such that the coil is disposed between the susceptor and the inner wall, wherein the heat-dissipating structure has an upper wall and a lower wall which connect the outer wall and the inner wall, wherein the inner space of the heat-dissipating structure is a vacuum space such that heat is prevented from being transferred from the inner wall to the outer wall, and wherein the lower wall forms a closed bottom of the heat-dissipating structure, the lower wall of the heat-dissipating structure has a multi-wall structure, and a vacuum space is formed in the lower wall such that heat is prevented from being transferred through the lower wall. ### Claim 8 (depends on 7) The aerosol-generating device of claim 7, wherein the lower wall is formed to cover a gap between the inner wall and the outer wall at a bottom of the heat-dissipating structure. ### Claim 9 (depends on 8) The aerosol-generating device of claim 8, wherein a through hole through which a wire passes is formed in the lower wall, and the coil is electrically connected to a controller of the aerosol-generating device through the wire. ### Claim 10 (depends on 7) The aerosol-generating device of claim 7, wherein the heat-dissipating structure includes a paramagnetic metal configured to block the induced magnetic field generated from the coil. ### Claim 11 (depends on 1) An aerosol-generating system comprising: the aerosol-generating device according to claim 1; and an aerosol-generating article accommodated in the aerosol-generating device.