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EP4537684A1 - Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol - Google Patents

Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol Download PDF

Info

Publication number
EP4537684A1
EP4537684A1 EP23834928.6A EP23834928A EP4537684A1 EP 4537684 A1 EP4537684 A1 EP 4537684A1 EP 23834928 A EP23834928 A EP 23834928A EP 4537684 A1 EP4537684 A1 EP 4537684A1
Authority
EP
European Patent Office
Prior art keywords
heating
heating device
cavity
air guide
tube portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23834928.6A
Other languages
German (de)
English (en)
Other versions
EP4537684A4 (fr
Inventor
Tao Wu
Wen ZHENG
Zuqiang QI
Zhongli XU
Yonghai LI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen FirstUnion Technology Co Ltd
Original Assignee
Shenzhen FirstUnion Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210800951.1A external-priority patent/CN117397876A/zh
Priority claimed from CN202320733081.0U external-priority patent/CN219556334U/zh
Application filed by Shenzhen FirstUnion Technology Co Ltd filed Critical Shenzhen FirstUnion Technology Co Ltd
Publication of EP4537684A1 publication Critical patent/EP4537684A1/fr
Publication of EP4537684A4 publication Critical patent/EP4537684A4/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating

Definitions

  • aerosol generating devices are increasingly more widely applied.
  • the most important component in the aerosol generating device is a heating device, and an aerosol generation article is heated through the heating device, so that the aerosol generation article can generate smoke.
  • a heating assembly is generally arranged at an air inlet end of the aerosol generation article for heating.
  • the "mounting” includes fixing or limiting an element or a device to a specific position or place in a manner such as welding, screwing, snapping, or bonding.
  • the element or the device may keep still at the specific position or place or move within a limited range.
  • the element or the device may or may not be disassembled after being fixed or limited to the specific position or place, which is not limited in the embodiments of this application.
  • the substantial attachment means that a distance L1 between the inner surface of the heat preservation assembly 10 and the circumferential outer surface of the aerosol generation article 2000 placed in the receiving cavity 11 is in a range of 0 mm ⁇ L1 ⁇ 2 mm. In some embodiments, the distance L1 satisfies 0.2 mm ⁇ L1 ⁇ 0.7 mm. In some embodiments, the distance L1 is 0.5 mm.
  • the airflow heating assembly 20 is configured to heat a gas flowing through the airflow heating assembly 20, so that the heated gas heats the aerosol generation article 2000 placed in the receiving cavity 11.
  • heat of the inner surface of the heat preservation assembly 10 heated by the airflow heating assembly 20 can be directly or indirectly transferred to an outer surface of the aerosol generation article 2000, so as to perform auxiliary heating on the aerosol generation article 2000 and make full use of the heat of the heat preservation assembly 10.
  • the heating device 100 further includes a temperature measurement element 30.
  • the temperature measurement element 30 is arranged inside the airflow heating assembly 20.
  • the temperature measurement element 30 is configured to measure a temperature of the airflow heating assembly 20, so as to facilitate real-time monitoring and control of the temperature of the airflow heating assembly 20.
  • the receiving cavity 11 is provided with a first chamber 111 and a second chamber 112, and the first chamber 111 and the second chamber 112 are in communication with each other along a first direction X.
  • the first direction X is parallel to a center line of the heat preservation assembly 10.
  • the first chamber 111 is configured to allow mounting of the airflow heating assembly 20, and the second chamber 112 is configured to allow mounting of the aerosol generation article 2000.
  • the air guide element 21 is made of graphite, and the air guide element 21 has good thermal conductivity, which is beneficial to improve heating efficiency.
  • the air guide element 21 is made of a graphite alloy.
  • the graphite alloy has good magnetic conductivity and relatively high thermal conductivity.
  • the good magnetic conductivity causes the heating element 22 to adopt an electromagnetic heating mode in addition to a resistive heating mode, so that the air guide element 21 can also generate heat, which increases an optional heating solution.
  • the relatively high thermal conductivity can effectively reduce time required for the heating element 22 to heat the air guide element 21 to a predetermined temperature, so as to improve heating efficiency of the airflow heating assembly 20.
  • the plurality of air guide channels 211 are in a shape of a cylinder, and a diameter D1 of each of the air guide channels 211 satisfies 0 ⁇ D1 ⁇ 0.5 mm.
  • the number of air guide channels 211 may be increased, and on the other hand, the heating efficiency of the gas flowing through the air guide channels 211 may be improved, to prevent a gas flow from being large and a poor gas heating effect as a result of an excessively large diameter of the air guide channel 211.
  • the air guide element 21 includes a first air guide block 213 and a second air guide block 214.
  • the first air guide block 213 is provided with a first groove 2131
  • the second air guide block 214 is provided with a second groove 2141.
  • the first groove 2131 and the second groove 2141 jointly define the above second mounting groove 212.
  • the air guide element 21 adopts a split design, which may help the temperature measurement element 30 to be mounted in the second mounting groove 212 more easily, and improve assembly efficiency of the heating device 100.
  • a circumferential outer surface of the air guide element 21 is provided with a first mounting region 216 and a second mounting region 217.
  • the first mounting region 216 is configured to connect to the inner surface of the inner tube portion 12 of the heat preservation assembly 10 through interference fit, and the air guide element 21 is fixed to the inner tube portion 12 under the action of friction.
  • the first mounting region 216 is provided with a first protrusion 2161. The first protrusion 2161 abuts against the inner surface of the inner tube portion 12 of the heat preservation assembly 10 to form line contact or point contact.
  • the first mounting region 216 may be connected to the inner tube portion 12 in another connection manner, such as bonding.
  • the heating element 22 includes a resistive heating element 223, a first insulating layer 224, and a second insulating layer 225.
  • the resistive heating element 223 is at least partially arranged on the outer peripheral surface of the air guide element 21, the first insulating layer 224 is arranged between the air guide element 21 and the resistive heating element 223, and the second insulating layer 225 is arranged between the resistive heating element 223 and the inner surface of the inner tube portion 12 of the heat preservation assembly 10.
  • the resistive heating element 223 is electrically connected to the external power supply. When the external power supply supplies power to the resistive heating element 223, the resistive heating element 223 can generate heat, thereby heating the air guide element 21.
  • the first insulating layer 224 and the second insulating layer 225 are also adhesive to fix the resistive heating element 223 and the air guide element 21 in the first chamber 111 of the receiving cavity 11. Specifically, the first insulating layer 224 fixes the air guide element 21 to the resistive heating element 223, and the second insulating layer 225 fixes the resistive heating element 223 to the inner tube portion 12 of the heat preservation assembly 10.
  • the heating element 22 further includes a magnetic field shielding layer 228.
  • the magnetic field shielding layer 228 is arranged between the induction coil 226 and the inner tube portion 12 of the heat preservation assembly 10.
  • the magnetic field shielding layer 228 is configured to shield influence of the alternating magnetic field generated by the energized induction coil 226 on the inner tube portion 12, to reduce heat generated in the inner tube portion 12.
  • the first mounting groove 215 provided with the heating member 229 and the second mounting groove 212 provided with the temperature measurement element 30 are both located in the center of the air guide element 21, the first mounting groove 215 and the second mounting groove 212 are the same mounting groove.
  • the heating member 229 and the temperature measurement element 30 are both located in the mounting groove.
  • the temperature measurement element 30 performs temperature measurement by using a temperature coefficient of resistance (TCR).
  • TCR temperature coefficient of resistance
  • the temperature measurement element 30 may further perform temperature measurement by using a negative temperature coefficient (NTC), a thermistor, and a thermocouple.
  • the first thermal insulation member 23 is made of ZrO2 (zirconium dioxide) and a compound thereof, and the first thermal insulation member 23 has at least characteristics of high temperature resistance, low thermal conductivity, and corrosion resistance.
  • the first thermal insulation member 23 may also be made of a thermal insulation material such as metal and/or non-metal and a compound thereof.
  • the heat of the inner tube portion 12 can be transferred to part of the circumferential outer surface of the aerosol generation article 2000, to perform auxiliary heating on the aerosol generation article 2000, so that the aerosol generation article 2000 is heated more evenly.
  • the heating device 100 in the embodiments of this application includes a heat preservation assembly 10 and an airflow heating assembly 20.
  • the heat preservation assembly 10 is internally provided with a receiving cavity 11.
  • the receiving cavity 11 is configured to accommodate an aerosol generation article 2000.
  • the airflow heating assembly 20 is arranged in the receiving cavity 11.
  • the airflow heating assembly 20 is configured to heat a gas flowing through the airflow heating assembly 20, so that the heated gas heats the aerosol generation article 2000 placed in the receiving cavity 11.
  • an inner surface of the heat preservation assembly 10 is substantially attached to a circumferential outer surface of the aerosol generation article 2000, and heat of an inner wall surface of the heat preservation assembly 10 can be transferred to the circumferential outer surface of the aerosol generation article 2000 for auxiliary heating, so that the heat of the heat preservation assembly 10 is effectively used to heat an axial outer surface of the aerosol generation article 2000, and parts and components of the heating device 100 are reduced.
  • the fourth through hole 204 is configured for exposure of part of the circuit device 300, so that the external power supply can be electrically connected to the circuit device 300.
  • the fourth through hole 204 is further configured to allow an external gas to enter the first accommodating cavity 2011, so as to enter the heating device 100 to be heated.
  • the charging interface 303 may not be provided, and the battery module 302 may use a detachable lithium battery, or the like.
  • two or more PCB circuit boards 301 are arranged. The two or more PCB circuit boards 301 are stacked in parallel in the first accommodating cavity 2011, and the PCB circuit boards 301 and the sheath 400 are arranged in the first accommodating cavity 2011 in a left-to-right direction, so that a layout of the PCB circuit boards 301 and the sheath 400 is more reasonable.
  • sealing treatment may be performed between the first accommodating cavity 2011 and the second accommodating cavity 2012 based on actual requirements, to prevent a gas generated by the air guide element 21 in the first accommodating cavity 2011 heating the aerosol generation article 2000 from entering the second accommodating cavity 2012 and affecting the operating performance of the battery module 302.
  • the aerosol generating device 1000 further includes a second thermal insulation member 600.
  • the second thermal insulation member 600 is arranged on a side of the end cap 500 facing the heating device 100, that is, the second thermal insulation member 600 is located between the air guide element 21 and the end cap 500.
  • the second thermal insulation member 600 is made of a material with low thermal conductivity.
  • the second thermal insulation member 600 is configured to reduce heat transferred from the air guide element 21 to the end cap 500.
  • the second thermal insulation member 600 is provided with a third through hole 601 and a fourth convex rib 602.
  • the second thermal insulation member 600 and the end cap 500 are arranged between the air guide element 21 and the cavity bottom of the first mounting cavity 401 for double thermal insulation, and the second thermal insulation member 600 is connected to the air guide element 21 and the end cap 500, and the end cap 500 is connected to the cavity bottom both in a manner of point contact, thereby effectively reducing the heat directly transferred by the air guide element 21 to the lower shell 403.
  • the sheath 400 can operate in a relatively low temperature environment, thereby effectively prolonging a service life of the sheath 400.
  • the heat loss of the air guide element 21 can be effectively reduced, and the thermal efficiency of the air guide element 21 is improved.
  • the second thermal insulation member 600 and the end cap 500 may be integrally formed.
  • the airflow heating assembly 20a is configured to heat the air flowing through the airflow channel 30a into hot air, and the hot air may flow into an interior of the aerosol generation article 2000 from a distal end of the aerosol generation article 2000 to heat a tobacco section in the aerosol generation article 2000 to generate an aerosol.
  • the hot air may flow into the interior of the aerosol generation article 2000 from a side wall of the aerosol generation article 2000.
  • An end of the tubular body 10a is provided with a first opening 111a, and at least part of the aerosol generation article 2000 is inserted into the containing cavity for accommodation through the first opening 111a.
  • the end with the first opening in the tubular body is defined as a proximal end m1 of the heating device, and a distal end m2 of the heating device is arranged opposite to the proximal end m1. It may be understood that for other parts and components such as the airflow heating assembly and the proximal end m1 and the distal end m2 of the airflow channel, reference may also be made to the above definition.
  • the first tubular body 11a may be made of metal, so that it is convenient to perform stamping processing on the first tubular body 11a, for example, stamping outward to form the outwardly arched second portion 113a, or stamping inward to form the inwardly tightened first portion 112a.
  • the second protrusion 14a When the minimum inner diameter of the second protrusion 14a is greater than the inner containing diameter of the first containing cavity 114a, the second protrusion 14a does not come into contact with the end portion of the aerosol generation article, so that the heat directly transferred from the second protrusion 14a to the end portion of the aerosol generation article may be further reduced.
  • the end portion of the aerosol generation article 2000 inserted into the second containing cavity 115a may be caused not to directly contact the tubular body 10a, and the end portion of the aerosol generation article 2000 is directly heated through hot air, so that an effect of more uniform heating is achieved, to avoid a situation that the end portion of the aerosol generation article 2000 generates smoke as a result of burning due to local overheating, thereby effectively improving the quality of the generated aerosol.
  • the aerosol generating device includes the above heating device 100a, and further includes a power supply assembly.
  • the power supply assembly may include any power supply that can provide electric energy for heat generation of the heating device 100a.
  • the power supply may be any suitable battery.
  • the power supply assembly may further include a control panel.
  • the power supply may be electrically connected to the heating device 100a through the control panel.
  • the control panel may control an operation of the aerosol generating device, including but not limited to controlling a heating power, a heating current, a heating voltage, or the like of the heating device 100a.

Landscapes

  • Resistance Heating (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
EP23834928.6A 2022-07-08 2023-07-06 Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol Pending EP4537684A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202210800951.1A CN117397876A (zh) 2022-07-08 2022-07-08 加热装置、气溶胶生成装置及气溶胶生成系统
CN202320733081.0U CN219556334U (zh) 2023-03-24 2023-03-24 加热机构及气溶胶生成装置
PCT/CN2023/106156 WO2024008162A1 (fr) 2022-07-08 2023-07-06 Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol

Publications (2)

Publication Number Publication Date
EP4537684A1 true EP4537684A1 (fr) 2025-04-16
EP4537684A4 EP4537684A4 (fr) 2025-09-24

Family

ID=89454445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23834928.6A Pending EP4537684A4 (fr) 2022-07-08 2023-07-06 Dispositif de chauffage, dispositif de génération d'aérosol et système de génération d'aérosol

Country Status (2)

Country Link
EP (1) EP4537684A4 (fr)
WO (1) WO2024008162A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120938154A (zh) * 2024-05-14 2025-11-14 尼科创业贸易有限公司 一种气溶胶供应装置及系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2534213B (en) * 2015-01-19 2018-02-21 Ngip Res Ltd Aerosol-generating device
CN108323823A (zh) * 2018-04-17 2018-07-27 威滔电子科技（深圳）有限公司 一种改进气流的气溶胶发生系统和气溶胶发生装置
SG11202112673QA (en) * 2019-05-16 2021-12-30 Xiamen Fengtao Ceramics Co Ltd Non-contact heat not burn heating device
CN111772246A (zh) * 2020-08-03 2020-10-16 惠州市沛格斯科技有限公司 加热模组及发烟装置
WO2021189799A1 (fr) * 2020-09-28 2021-09-30 云南中烟工业有限责任公司 Appareil à fumer pour chauffage par induction à l'extrémité avant d'une cigarette
CN112089113B (zh) * 2020-10-13 2024-11-19 惠州市沛格斯科技有限公司 加热模组及发烟装置
CN214547173U (zh) * 2021-02-03 2021-11-02 惠州市沛格斯科技有限公司 加热模组及发烟装置
CN216701667U (zh) * 2021-11-16 2022-06-10 深圳市合元科技有限公司 混合加热装置和气溶胶产生装置
CN216701668U (zh) * 2021-11-19 2022-06-10 深圳市合元科技有限公司 气溶胶生成装置
CN216601677U (zh) * 2021-12-31 2022-05-27 深圳华宝协同创新技术研究院有限公司 一种电操作气溶胶生成系统
CN217986691U (zh) * 2022-07-08 2022-12-09 深圳市合元科技有限公司 加热装置、气溶胶生成装置及气溶胶生成系统

Also Published As

Publication number Publication date
WO2024008162A1 (fr) 2024-01-11
EP4537684A4 (fr) 2025-09-24

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