WO2023231626A1 - Bobine de chauffage électromagnétique, ensemble de chauffage et dispositif d'atomisation électronique - Google Patents

Bobine de chauffage électromagnétique, ensemble de chauffage et dispositif d'atomisation électronique Download PDF

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Publication number
WO2023231626A1
WO2023231626A1 PCT/CN2023/089210 CN2023089210W WO2023231626A1 WO 2023231626 A1 WO2023231626 A1 WO 2023231626A1 CN 2023089210 W CN2023089210 W CN 2023089210W WO 2023231626 A1 WO2023231626 A1 WO 2023231626A1
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic heating
heating coil
coil
electromagnetic
axis
Prior art date
Application number
PCT/CN2023/089210
Other languages
English (en)
Chinese (zh)
Inventor
范吉昌
杨保民
罗永杰
Original Assignee
深圳麦克韦尔科技有限公司
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
Application filed by 深圳麦克韦尔科技有限公司 filed Critical 深圳麦克韦尔科技有限公司
Publication of WO2023231626A1 publication Critical patent/WO2023231626A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • 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

Definitions

  • the present application relates to the field of atomization technology, and in particular to an electromagnetic heating coil, heating assembly and electronic atomization device.
  • Aerosol is a colloidal dispersion system formed by small solid or liquid particles dispersed and suspended in a gas medium. Aerosol can be absorbed by the human body through the respiratory system, providing users with a new alternative absorption method. For example, electronic atomization devices that can bake and heat herbal or ointment aerosol-generating substrates to generate aerosols are used in different fields to deliver inhalable aerosols to users, replacing conventional product forms and absorption Way.
  • the electronic atomization device uses a heating component to heat the aerosol-generating substrate to generate aerosol for the user to inhale.
  • the heating components include electromagnetic heating coils and heating elements.
  • the electromagnetic heating coil is energized to generate a magnetic field.
  • the heating element is located in the magnetic field generated by the electromagnetic heating coil and heats up.
  • the aerosol generates a matrix and a heating element. When in contact, the heating element heats and atomizes the aerosol-generating substrate.
  • Electromagnetic heating coils are usually formed by spirally surrounding wires.
  • the traditional spiral coil has a larger radial size, which makes the entire electronic atomization device larger in the radial direction, which is not conducive to the miniaturization of the electronic atomization device.
  • the present application provides an electromagnetic heating coil for use in an electronic atomization device.
  • the electromagnetic heating coil is formed by at least one wire bundle spirally extending along an axis. In the extension direction of the axis, the electromagnetic heating coil includes at least A turn coil; each wire bundle includes at least two strands of wires;
  • Each turn coil has a first dimension in the extension direction of the axis and a second dimension in a first direction perpendicular to the extension direction of the axis, and the first dimension is larger than the second dimension.
  • each turn coil is rectangular or elliptical.
  • the number of wires included in each wire bundle is 15-300 strands, and the diameter of each wire is 0.02mm-0.5mm.
  • the electromagnetic heating coil includes 1-3 wire bundles, each wire bundle includes 100 strands of wire, each The diameter of the stranded wire is 0.1mm.
  • the present application provides a heating component, including a heating element and an electromagnetic heating coil as described above.
  • the electromagnetic heating coil is arranged outside the heating body;
  • the heating body is provided with an accommodating cavity, and the heating body is provided with an opening communicating with the accommodating cavity in the extending direction of the axis.
  • the heating assembly further includes a mounting frame, the electromagnetic heating coil is arranged around the outside of the mounting frame, and the heating element is located in the mounting frame and is at least partially opposite to the electromagnetic heating coil in the first direction.
  • the heating component further includes a magnetic shield, and the magnetic shield is disposed outside the electromagnetic heating coil.
  • the frequency of the operating current of the electromagnetic heating coil is 20KHZ-1MHZ.
  • the frequency of the operating current of the electromagnetic heating coil is 100KHZ-600KHZ.
  • An electronic atomization device includes a heating component as described above.
  • the size of each coil in the radial direction is smaller than the size in the axial direction.
  • the cross-section of each sub-coil of the electromagnetic heating coil is circular. , reducing the size of the electromagnetic heating coil in the radial direction, thereby reducing the size of the electronic atomization device in the radial direction, which is beneficial to the miniaturization of the electronic atomization device.
  • Figure 1 is a isometric view of an electronic atomization device provided by an embodiment of the present application.
  • Figure 2 is a cross-sectional view of the electronic atomization device shown in Figure 1;
  • Figure 3 is a cross-sectional view of the heating assembly of the electronic atomization device shown in Figure 1;
  • FIG. 4 is a cross-sectional view of the electromagnetic heating coil of the heating assembly shown in FIG. 3 .
  • Electromagnetic heating coil 21. Sub-coil; H, first size; W, second size;
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
  • the traditional electromagnetic heating coil has a large size in the radial direction, which results in a large size of the entire electronic atomization device in the radial direction, which is not conducive to the miniaturization of the electronic atomization device.
  • the inventor's research found that the root cause of the above problems is that the electronic atomization device using electromagnetic heating
  • the heating component includes an electromagnetic heating coil and a heating body.
  • the electromagnetic heating coil is sleeved on the heating body and extends spirally along an axis.
  • the cross-sectional shape of each coil is circular. This will result in a larger radial size of the electromagnetic heating coil, resulting in a larger radial size of the entire electronic atomization device. Large, it is not conducive to the miniaturization of electronic atomization devices.
  • FIG. 1 is an isometric view of the electronic atomization device 100 provided by an embodiment of the present application.
  • the present application provides an electronic atomization device 100.
  • the electronic atomization device 100 can be used to heat and atomize a mosaic, herbal, or synthetic liquid, solid, or pasty aerosol-generating matrix 300.
  • FIG. 2 is a cross-sectional view of the electronic atomization device 100 shown in FIG. 1
  • FIG. 3 is a cross-sectional view of the heating assembly 200 of the electronic atomization device 100 shown in FIG. 1
  • the electronic atomization device 100 includes a heating component 200.
  • the heating component 200 includes a heating element 10 and an electromagnetic heating coil 20 that is set outside the heating element 10.
  • the electromagnetic heating coil 20 is energized to generate a magnetic field, and the heating element 10 is in the magnetic field generated by the electromagnetic heating coil 20.
  • the aerosol generating substrate 300 generates heat in the magnetic field.
  • the heating element 10 is provided with an accommodating cavity 11 , and the heating element 10 is provided with an opening 12 communicating with the accommodating cavity 11 , and the aerosol generating matrix 300 can be accommodated in the accommodating cavity 11 through the opening 12 .
  • the electromagnetic heating coil 20 is energized to generate a magnetic field, and the heating element 10 generates heat when it is in the magnetic field. Since the aerosol generating matrix 300 is accommodated in the containing cavity 11, at this time, the heating element 10 transfers heat to the aerosol generating matrix 300, and the aerosol is generated. The temperature of the substrate 300 increases and atomizes to form an aerosol.
  • the electromagnetic heating coil 20 is formed by at least one wire bundle spirally extending along an axis, and the opening 12 is provided at one end of the heating element 10 in the extending direction of the axis.
  • each wire bundle includes at least two strands of wires, that is, each wire bundle includes at least two wires, and each wire bundle is formed by twisting at least two strands (two wires).
  • FIG. 4 is a cross-sectional view of the electromagnetic heating coil 20 of the heating assembly 200 shown in FIG. 3 .
  • the electromagnetic heating coil 20 includes at least one turn coil 21 , that is, in the axial direction of the electromagnetic heating coil 20 , the electromagnetic heating coil 20 includes at least one turn coil 21 .
  • Each turn coil 21 has a first dimension H in the extension direction of the axis, and a second dimension W in a first direction (radial direction) perpendicular to the extension direction of the axis.
  • the first dimension H is larger than the second dimension W.
  • each coil 21 in the radial direction is smaller than the size in the axial direction.
  • the cross section of each coil 21 is circular (when the electromagnetic heating coil When the cross section of 20 is circular and the radial size and axial size of each turn coil 21 are equal), it has the following advantages:
  • the size of the electromagnetic heating coil 20 in the radial direction is reduced, thereby reducing the size of the electronic atomization device 100 in the radial direction (lateral space), which is beneficial to the miniaturization of the electronic atomization device 100.
  • the outer circumference is larger, which is more conducive to the heat dissipation of the electromagnetic heating coil 20, reduces the temperature of the electromagnetic heating coil 20 and the loss of the electromagnetic heating coil 20, and improves the efficiency of the electromagnetic heating coil 20. service life.
  • the electromagnetic heating coil 20 is positioned at the same level as the heating element 10.
  • the orthographic projection of the surface has a larger projection area, which can increase the heating area and improve the uniformity of the magnetic field.
  • the electromagnetic heating coil 20 provided in this embodiment is formed by at least one wire bundle spirally extending along the above-mentioned axis, and each wire bundle includes at least two strands of wires.
  • each wire bundle includes at least two strands of wires.
  • the spirally extended metal strip can reduce the AC resistance of the electromagnetic heating coil 20 under high-frequency current and reduce the energy loss of the electronic atomization device 100 itself.
  • the cross-sectional shape of each turn coil 21 is rectangular. Since the length of one set of sides of a rectangle is greater than the length of another set of sides, when the cross-sectional shape of each turn coil 21 is set to be a rectangle, a set of long sides of the rectangle is set along the extension direction of the axis, and a set of short sides are set along the first direction ( (radial direction) arrangement can ensure that the size of each turn coil 21 in the axial direction is larger than the size in the radial direction, that is, ensuring that the first size H is larger than the second size W.
  • the cross-sectional shape of each turn coil 21 is elliptical. Since the ellipse has a long axis and a short axis, when the cross-sectional shape of each turn coil 21 is set to be elliptical, the long axis is set along the extension direction of the axis, and the short axis is set along the first direction (radial direction), so that It is ensured that the size of each turn coil 21 in the axial direction is greater than the size in the radial direction, that is, it is ensured that the first size H is greater than the second size W.
  • each turn coil 21 is not limited to the above-mentioned rectangular and elliptical shapes, and can be set as needed.
  • the electromagnetic heating coil 20 is formed by a wire bundle spirally extending along the above-mentioned axis.
  • Each wire bundle includes 15-300 wires, and the diameter of each wire is 0.02mm-0.5mm.
  • each wire bundle includes 100 wires, and the diameter of each wire is 0.1 mm.
  • the electromagnetic heating coil 20 is composed of multiple wire bundles extending spirally along the above-mentioned axis. Each wire bundle includes 15-300 wires, and the diameter of each wire is 0.02mm-0.5mm. Specifically, the electromagnetic heating coil 20 is formed by three wire bundles extending spirally along the above-mentioned axis. Each wire bundle includes 100 wires, and the diameter of each wire is 0.1 mm.
  • first 100 strands of wires with a diameter of 0.1 mm are twisted together to form a wire bundle, then three bundles of wires are twisted together, and the twisted wires are twisted together using special equipment. The wire bundle is pressed into a required shape, and finally the three wire bundles pressed into a specific shape are spirally extended along the axis to form the electromagnetic heating coil 20.
  • the electromagnetic heating coil 20 is formed by two wire bundles extending spirally along the above-mentioned axis. Each wire bundle includes 150 wires, and the diameter of each wire is 0.05 mm.
  • the heating component 200 further includes a mounting frame 30 , the electromagnetic heating coil 20 is arranged around the mounting frame 30 , and the heating element 10 is mounted in the mounting frame 30 and is in contact with the mounting frame 30 in the first direction.
  • the electromagnetic heating coils 20 are at least partially opposed. In this way, the assembly and fixation of the heating element 10 and the electromagnetic heating coil 20 are facilitated.
  • the heating assembly 200 also includes a magnetic shield 40 , which is disposed outside the electromagnetic heating coil 20 .
  • the magnetic shield 40 can fix the electromagnetic heating coil 20, and the magnetic shield 40 can prevent the electromagnetic heating coil 20 from radiating electromagnetism to the outside world.
  • the frequency of the operating current of the electromagnetic heating coil 20 is 20KHZ-1MHZ. In this way, the electromagnetic heating coil 20 is operated under a medium-low frequency current, and the current density is relatively high at this frequency. This allows current to flow through the conductor located in the middle of the electromagnetic heating coil 20 and effectively utilizes the conductor.
  • the frequency of the working current of the electromagnetic heating coil 20 is 100KHZ-600KHZ. In this way, it is ensured that the electromagnetic heating coil 20 operates under a current of appropriate frequency to ensure that current flows through all the wires included in the electromagnetic heating coil 20, further improving the utilization rate of the wires.
  • Another embodiment of the present application also provides a heating component 200 included in the above-mentioned electronic atomization device 100.
  • the electromagnetic heating coil 20 is formed by at least one wire bundle spirally extending along an axis, and each wire bundle includes at least two strands of wires. In the extending direction of the axis, the electromagnetic heating coil 20 includes at least one turn coil 21 .
  • Each turn coil 21 has a first dimension H in the extension direction of the axis, and a second dimension W in a first direction perpendicular to the extension direction of the axis. The first dimension H is larger than the second dimension W.
  • each sub-coil 21 in the radial direction is smaller than the size in the axial direction. Compared with the prior art situation where the cross-section of each sub-coil 21 of the electromagnetic heating coil 20 is circular, the size is smaller.
  • the size of the electromagnetic heating coil 20 in the radial direction is reduced, thereby reducing the size of the electronic atomization device 100 in the radial direction (lateral space), which is beneficial to the miniaturization of the electronic atomization device 100.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne une bobine de chauffage électromagnétique (20), un ensemble de chauffage (200) et un dispositif d'atomisation électronique (100). La bobine de chauffage électromagnétique (20) est formée par extension en spirale d'au moins un faisceau de fils le long d'un axe, et chaque faisceau de fils comprend au moins deux brins de fils ; dans la direction d'extension de l'axe, la bobine de chauffage électromagnétique comprend au moins une spire de sous-bobine (21), et la taille de chaque spire de sous-bobine (21) dans une direction radiale est inférieure à la taille de celles-ci dans une direction axiale. Par comparaison avec la situation dans laquelle la section transversale de chaque spire de sous-bobine de la bobine de chauffage électromagnétique actuelle est circulaire, la taille de la bobine de chauffage électromagnétique (20) dans la direction radiale est réduite, de telle sorte que la taille du dispositif d'atomisation électronique (100) dans la direction radiale soit réduite, ce qui facilite la miniaturisation du dispositif d'atomisation électronique (100).
PCT/CN2023/089210 2022-06-02 2023-04-19 Bobine de chauffage électromagnétique, ensemble de chauffage et dispositif d'atomisation électronique WO2023231626A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221366482.9U CN217695285U (zh) 2022-06-02 2022-06-02 电磁加热线圈、加热组件及电子雾化装置
CN202221366482.9 2022-06-02

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WO2023231626A1 true WO2023231626A1 (fr) 2023-12-07

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PCT/CN2023/089210 WO2023231626A1 (fr) 2022-06-02 2023-04-19 Bobine de chauffage électromagnétique, ensemble de chauffage et dispositif d'atomisation électronique

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EP (1) EP4287768A1 (fr)
JP (1) JP7635295B2 (fr)
KR (1) KR20230167702A (fr)
CN (1) CN217695285U (fr)
WO (1) WO2023231626A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217695285U (zh) * 2022-06-02 2022-11-01 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置
CN116437513A (zh) * 2023-04-19 2023-07-14 湖北中烟工业有限责任公司 一种电磁感应线圈、电磁感应装置及卷烟加热烟具

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CN213719923U (zh) * 2020-10-21 2021-07-20 比亚迪股份有限公司 电子烟
CN113812211A (zh) * 2019-03-11 2021-12-17 尼科创业贸易有限公司 气溶胶供应装置
CN113853128A (zh) * 2019-03-11 2021-12-28 尼科创业贸易有限公司 气溶胶供应装置
US20220142254A1 (en) * 2019-03-11 2022-05-12 Nicoventures Trading Limited Aerosol provision device
CN114983024A (zh) * 2022-06-02 2022-09-02 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置
CN217695285U (zh) * 2022-06-02 2022-11-01 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置
CN218650275U (zh) * 2022-06-02 2023-03-21 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置

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AU2017320216A1 (en) 2016-08-31 2018-12-06 Philip Morris Products S.A. Aerosol generating device with inductor
CN111526746A (zh) 2017-12-28 2020-08-11 Jt国际公司 用于蒸气产生装置的感应加热组件
EP3793381B1 (fr) * 2018-05-17 2023-01-25 Philip Morris Products S.A. Dispositif de génération d'aérosol avec bobine d'inductance améliorée
CN114828674A (zh) 2019-12-11 2022-07-29 菲利普莫里斯生产公司 具有多导线感应线圈的感应加热式气溶胶生成装置

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Publication number Priority date Publication date Assignee Title
CN113812211A (zh) * 2019-03-11 2021-12-17 尼科创业贸易有限公司 气溶胶供应装置
CN113853128A (zh) * 2019-03-11 2021-12-28 尼科创业贸易有限公司 气溶胶供应装置
US20220142254A1 (en) * 2019-03-11 2022-05-12 Nicoventures Trading Limited Aerosol provision device
CN213719923U (zh) * 2020-10-21 2021-07-20 比亚迪股份有限公司 电子烟
CN114983024A (zh) * 2022-06-02 2022-09-02 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置
CN217695285U (zh) * 2022-06-02 2022-11-01 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置
CN218650275U (zh) * 2022-06-02 2023-03-21 深圳麦克韦尔科技有限公司 电磁加热线圈、加热组件及电子雾化装置

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JP7635295B2 (ja) 2025-02-25
CN217695285U (zh) 2022-11-01
KR20230167702A (ko) 2023-12-11
JP2023178216A (ja) 2023-12-14
EP4287768A1 (fr) 2023-12-06

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