# US 2023/0263237 A1 · Vapor generation device and infrared emitter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0263237 A1 - Document ID: US20230263237A1 - Status: Published application - Kind: A1 - Application number: 18/014,160 - Filed: 2021-07-02 - Published: 2023-08-24 - Earliest claimed: 2020-07-03 - Assignees: Shenzhen First Union Technology Co., Ltd. - Applicants: Shenzhen First Union Technology Co., Ltd. - Inventors: LINJIAN HUANG; JIAN WU; ZHONGLI XU; YONGHAI LI - Web page: https://patentgrep.com/patent/US20230263237A1 ## CPC - A24F 40/57: Temperature control - H05B 3/04: Waterproof or air-tight seals for heaters - A24F 40/20: Devices using solid inhalable precursors - A24F 40/46: Shape or structure of electric heating means - A24F 40/51: Arrangement of sensors - G01K 13/00: Thermometers specially adapted for specific purposes - H05B 3/141: {Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds} - H05B 3/145: {Carbon only, e.g. carbon black, graphite} - H05B 3/148: {Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes} - H05B 3/46: heating conductor mounted on insulating base - H05B 2203/011: Heaters using laterally extending conductive material as connecting means - H05B 2203/013: Heaters using resistive films or coatings - H05B 2203/017: Manufacturing methods or apparatus for heaters - H05B 2203/02: Heaters using heating elements having a positive temperature coefficient - H05B 2203/022: Heaters specially adapted for heating gaseous material - H05B 2203/032: Heaters specially adapted for heating by radiation heating - 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 - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) ## Abstract A vapor generation device and an infrared emitter is provided. The vapor generation device includes a housing, where the housing is internally provided with: a cavity, configured to receive an inhalable material; an infrared emitter, including an infrared emission material, where the infrared emission material is configured to heat the inhalable material by radiating an infrared ray; a temperature sensing material, formed on the infrared emitter and insulated from the infrared emission material, where the temperature sensing material has a positive or negative resistance-temperature coefficient; and a circuit, configured to obtain a resistance value of the temperature sensing material and determine a temperature of the infrared emitter from the resistance value. The temperature of the infrared emitter can be determined by printing or depositing a temperature sensing material with a temperature sensor function on the infrared emitter itself and detecting the resistance of the temperature sensing material. ## Claims ### Claim 1 A vapor generation device, configured to heat an inhalable material to generate an aerosol for inhalation, comprising: a housing, wherein the housing is internally provided with: a cavity, configured to receive an inhalable material; an infrared emitter, comprising an infrared emission material, wherein the infrared emission material is configured to radiate an infrared ray to the inhalable material received in the cavity, so as to heat the inhalable material; a temperature sensing material, formed on the infrared emitter and insulated from the infrared emission material, wherein the temperature sensing material has a positive or negative resistance-temperature coefficient; and a circuit, configured to obtain a resistance value of the temperature sensing material and determine a temperature of the infrared emitter from the resistance value. ### Claim 2 (depends on 1) The vapor generation device according to claim 1, wherein the temperature sensing material comprises a conductive trajectory or a thermistor coating formed on the infrared emitter. ### Claim 3 (depends on 1) The vapor generation device according to claim 1, wherein the infrared emitter is configured to extend along an axial direction of the cavity and surround at least a part of the cavity. ### Claim 4 (depends on 3) The vapor generation device according to claim 3, wherein the infrared emitter further comprises: a base body, extending along the axial direction of the cavity and surrounding the cavity; and the infrared emission material is arranged to be a coating formed on the base body or a film wrapped or wound on the tubular base body. ### Claim 5 (depends on 4) The vapor generation device according to claim 4, wherein at least a part of a length of the temperature sensing material extending along the axial direction of the cavity covers a length of the infrared emission material extending along the axial direction of the cavity. ### Claim 6 (depends on 1) The vapor generation device according to claim 1, wherein the infrared emitter is configured in a shape of pin extending along an axial direction of the cavity, and is inserted into the inhalable material when the inhalable material is received in the cavity. ### Claim 7 (depends on 6) The vapor generation device according to claim 6, wherein the infrared emitter comprises: a base body, configured to be in a pin shape at least a part of which extends along the axial direction of the cavity, wherein the base body is provided with a hollow extending along the axial direction inside; and a substrate, accommodated in the hollow; and the infrared emission material is arranged to be a coating formed on a surface of the substrate or a film wrapped on the substrate. ### Claim 8 (depends on 7) The vapor generation device according to claim 7, wherein the temperature sensing material is formed on a surface of the base body. ### Claim 9 (depends on 2) The vapor generation device according to claim 2, wherein the conductive trajectory is configured in a winding, bending, or spiral shape extending along a length direction of the infrared emitter. ### Claim 10 (depends on 2) The vapor generation device according to claim 2, wherein the infrared emitter comprises: an electrothermal layer, comprising a first side and a second side facing away from each other along a thickness direction; the infrared emission material is positioned on the first side of the electrothermal layer and configured to radiate an infrared ray to the inhalable material received by the cavity when heated by the electrothermal layer; and the thermistor coating is positioned on the second side of the electrothermal layer. ### Claim 11 (depends on 10) The vapor generation device according to claim 10, wherein the infrared emitter further comprises: a first electrode layer, positioned on a first side of the electrothermal layer and electrically conductive with the electrothermal layer; a second electrode layer, positioned between the electrothermal layer and the thermistor coating and electrically conductive with both the electrothermal layer and the thermistor coating; and a third electrode layer, positioned on a side of the thermistor coating away from the electrothermal layer and electrically conductive with the thermistor coating. ### Claim 12 (depends on 11) The vapor generation device according to claim 11, wherein the first electrode layer and the second electrode layer are staggered from each other along a thickness direction of the electrothermal layer. ### Claim 13 An infrared emitter for a vapor generation device, comprising: an infrared emission material, configured to radiate an infrared ray to an inhalable material to heat the inhalable material; and a temperature sensing material, insulated from the infrared emission material and having a positive or negative resistance-temperature coefficient, so that a temperature of the infrared emitter is capable of being determined from a resistance value of the conductive trajectory or thermistor coating by measuring the resistance value. ### Claim 14 (depends on 2) The vapor generation device according to claim 2, wherein the infrared emitter is configured to extend along an axial direction of the cavity and surround at least a part of the cavity. ### Claim 15 (depends on 14) The vapor generation device according to claim 14, wherein the infrared emitter further comprises: a base body, extending along the axial direction of the cavity and surrounding the cavity; and the infrared emission material is arranged to be a coating formed on the base body or a film wrapped or wound on the tubular base body. ### Claim 16 (depends on 15) The vapor generation device according to claim 15, wherein at least a part of a length of the temperature sensing material extending along the axial direction of the cavity covers a length of the infrared emission material extending along the axial direction of the cavity. ### Claim 17 (depends on 2) The vapor generation device according to claim 2, wherein the infrared emitter is configured in a shape of pin extending along an axial direction of the cavity, and is inserted into the inhalable material when the inhalable material is received in the cavity. ### Claim 18 (depends on 17) The vapor generation device according to claim 17, wherein the infrared emitter comprises: a base body, configured to be in a pin shape at least a part of which extends along the axial direction of the cavity, wherein the base body is provided with a hollow extending along the axial direction inside; and a substrate, accommodated in the hollow; and the infrared emission material is arranged to be a coating formed on a surface of the substrate or a film wrapped on the substrate. ### Claim 19 (depends on 18) The vapor generation device according to claim 18, wherein the temperature sensing material is formed on a surface of the base body.