EP4284116A1 - Enroulement de bobine et dispositif de génération d'aérosol - Google Patents

Enroulement de bobine et dispositif de génération d'aérosol Download PDF

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Publication number
EP4284116A1
EP4284116A1 EP23170292.9A EP23170292A EP4284116A1 EP 4284116 A1 EP4284116 A1 EP 4284116A1 EP 23170292 A EP23170292 A EP 23170292A EP 4284116 A1 EP4284116 A1 EP 4284116A1
Authority
EP
European Patent Office
Prior art keywords
coils
support body
coil
coil winding
air
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
EP23170292.9A
Other languages
German (de)
English (en)
Inventor
Yongjie LUO
Baomin YANG
Jichang FAN
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 Smoore Technology Ltd
Original Assignee
Shenzhen Smoore Technology 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
Application filed by Shenzhen Smoore Technology Ltd filed Critical Shenzhen Smoore Technology Ltd
Publication of EP4284116A1 publication Critical patent/EP4284116A1/fr
Pending legal-status Critical Current

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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
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • 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
    • 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
    • H05B6/42—Cooling of coils
    • 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
    • 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
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating

Definitions

  • the present invention relates to the field of aerosol generating devices, in particular to an electromagnetic vaping device, and more particularly to a coil winding with an air interlayer and an aerosol generating device.
  • Aerosol is a colloidal dispersion formed by small solid or liquid masses dispersed and suspended in a gaseous medium. Since the aerosol can be absorbed by the human body through the respiratory system, it provides users with a new alternative absorption method, such as an atomization device that can bake and heat the aerosol-generating substrate of herbs or creams to generate aerosol, which is used in different fields to deliver inhalable aerosols to users, thus replacing conventional product forms and absorption methods.
  • the conventional baking-type aerosol generating device can also use the electromagnetic induction heating principle to enable the heating element to generate heat to bake and heat the atomized aerosol generating substrate.
  • the principle of electromagnetic induction heating is that an alternating current generated by an induction heating power supply passes through an inductor (i.e. coil) to produce an alternating magnetic field in which a conductive magnetic receptor (i.e. heating element) cuts alternating magnetic lines of force, thus generating an alternating current (i.e. eddy current) inside the heating element, which causes atoms inside the heating element to move at high speed and irregularly, and the atoms collide and rub against each other to generate heat, thereby further heating the aerosol-forming substrate.
  • an inductor i.e. coil
  • a conductive magnetic receptor i.e. heating element
  • a support body with fixed coil winding is directly wound, that is, coils are directly wound on the support body one by one, and the coils are in direct contact with the surface of the support body
  • a winding fixing support body is provided for winding the coils, and the inside of the winding fixing support body is a tubular support body.
  • the problem with the former is that the coil is in close contact with the support body, when the heating element inside the support body is heated, heat transfer occurs, causing a temperature of the coils to rise too fast and aggravating the wire loss, or when the inside is insulated, the coils self-heat, since the coils are closely arranged and are also close to the support body, there is no space for the coils to dissipate heat, so that the temperature is too high and the loss of the coils is aggravated.
  • the latter can separate the coil and the tubular support body to improve the heat dissipation of the coil, it leads to an increase in parts and a complex structure. More critically, the coil support body 1 dissipates heat too quickly and the energy loss is relatively large.
  • a coil referred to in the present invention refers to a circular wire winding, which especially relates to the field of inductance in the present invention.
  • a first aspect of the present invention provides a coil winding.
  • the coil winding includes a support body and coils, an outer surface of the support body is provided with an air groove, the coils are wound on the outer surface of the support body and at least partially cover the air groove, and an air interlayer is formed by the air groove between the support body and the coils.
  • a plurality of air grooves are provided.
  • the distribution of the plurality of air grooves is not limited, and can be evenly or unevenly distributed, more specially, the air grooves match the distribution of the coils wound on the support body. That is, the outer surface of the coils covering the support body corresponds to the air grooves, when the gap is provided between the coils, the outer surface of the support body does not need to be provided with the air grooves.
  • the coils completely cover the air groove. That is, the air groove is completely located between the support body and the coils, and the air groove is not exposed after the coils are wound on the support body.
  • an axial width of the air groove is less than an axial width of a coil of the coils, a radial depth of the air groove is greater than or equal to 0.1mm.
  • the axial width and radial depth of the air groove are limited, but the circumferential length of the air groove is not limited. That is, the air groove can be circumferentially extended for a short period.
  • the air grooves are provided at all places covered by the coil along the extension direction of the coils.
  • the outer surface of the support body is further provided with a protrusion arranged between at least two coils of the coils.
  • a plurality of protrusions are provided.
  • a radial height of the protrusion is less than or equal to or greater than a radial height of the coils. That is, the number, position, axial width, radial depth, and circumferential length of the protrusions are not limited, as long as the protrusions can be arranged to match the positioning and winding of the coil and the coil can be fixed on the support body. In addition, the positioning of the coil is also conducive to the correspondence between the position of the coil and the air groove.
  • a gap is provided between at least two coils of the coils.
  • the gaps may be provided between all adjacent coils, optionally only some adjacent coils are provided with gaps, and the gaps can facilitate the heat dissipation of the coils.
  • the function of the protrusion is to position the coil, which ensures that the coil can be arranged in a combination of dense winding and sparse winding, thereby ensuring the stability of the gap.
  • a second aspect of the present invention provides an aerosol generating device, including the coil winding provided with an air interlayer according to the first aspect of the present invention and a heating element provided inside the support body.
  • a shielding layer is provided outside the coils.
  • a top of the support body is provided with an upper cover, and a bottom of the support body is provided with a lower cover.
  • a temperature measuring component is provided on a surface of the heating element to detect a temperature of the surface of the heating element.
  • the aerosol generating device of the present invention is an electromagnetic aerosol generating device.
  • the aerosol generating device of the present invention also includes conventional power supplies, controllers, casings, etc. for smoking appliances in the field.
  • the outer surface of the support body of the coil winding of the present invention is provided with the air groove, and the coils are wound on the outer surface of the support body and at least partially cover the air groove, and the air interlayer between the coils and the support body is formed by opening the air groove in the support body, so that an air heat insulation layer is formed between the support body and the coils to reduce heat transferring to the coils and reduce the energy loss of the coils.
  • the outer surface of the support body is further provided with the protrusion, which can position and fix the coils.
  • the positioning of the coils is conducive to the correspondence between the position of the coil and the air groove.
  • the gap is provided between at least two coils, thaus the heat of the coils can be dissipated through the gap.
  • the support body with the air grooves in the present invention is compared with the support body with no air grooves in a normal solution, the surface temperature of the coil winding (that is, the temperature of the outermost layer of the heating element) is reduced by 6.53°C, and the surface temperature of a coil lead of the coils is reduced by 4.43°C, which effectively reduces the surface temperature of the coils, thereby achieving the effect of reducing energy loss.
  • the support body with the air grooves in the present invention is about 14mwh lower in energy consumption than a normal solution with the winding fixing support for winding coils, which further reduces the overall energy consumption.
  • plural means two or more.
  • the orientation or state relationship indicated by the terms “inner”, “upper” and “lower” are based on the orientation or status relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
  • the terms "mount”, “connection” and “provide” should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary.
  • a conventional electromagnetic aerosol generating device which has no air grooves or protrusions on a surface of a coil support. Corresponding coils are directly and closely wound on the coil support in circles, and the coils are in direct contact with the surface of the support.
  • a conventional electromagnetic aerosol generating device which has a winding fixing support for winding coils.
  • the winding fixing support has a tubular support, on which the coils are closely wound.
  • an embodiment of the present invention provides a coil winding and an aerosol generating device including the coil winding.
  • the coil winding includes a support body 1 and coils 3.
  • An air groove 2 is provided on an outer surface of the support body 1, and the coils 3 are wound on the outer surface of the support body 1 and at least partially cover the air groove 2.
  • An air interlayer is formed by the air groove 2 between the support body 1 and the coils 3.
  • an air heat insulation layer is formed between the support body 1 and the coils 3 to reduce heat transferring to the coils 3 and reduce the energy loss of the coils 3.
  • a plurality of air grooves 2 are provided, which matches the distribution of the coils 3 wound on the support body 1. That is, the outer surface of the support body 1 covered by the coils 3 is correspondingly provided with the air grooves 2, and the outer surface of the support body 1 not covered by the coils 3 is not provided with the air grooves 2. For example, in an embodiment, when a gap 5 is provided between two coils of the coils 3, no air groove 2 is provided on the outer surface of the support body 1 corresponding to the gap 5.
  • the coils 3 completely cover the air groove 2. Since the air groove 2 has been completely covered, the air interlayer between the coils 3 and the support body 1 is relatively airtight, thereby forming the air heat insulation layer between the coils 3 and the support body 1, which can better reduce heat transferring from the support body 1 to the coils 3 and reduce the energy loss of the coils 3.
  • an axial width of the air groove 2 is defined as H1, and an axial width of one coil 3 is defined as H2.
  • the coil of the coils 3 can relatively seal the air groove 2 on the support body 1.
  • a relatively sealed air groove 2 is formed between the coils 3 and the support body 1 to achieve the technical effect of using air to insulate heat.
  • the axial width H2 of the coil is 1.65 mm
  • the axial width H1 of the air groove 2 is 1.0 mm, which is less than the axial width H2 of the coil 3.
  • a radial depth of the air groove 2 is defines as T, which is 0.3mm.
  • the outer surface of the support body 1 is further provided with a protrusion 4, and the protrusion 4 is arranged between at least two coils of the coils 3.
  • One or more protrusions 4 may be provided.
  • the protrusion 4 is configured to assist the winding of the coils 3, and plays a role in fixing and positioning the coil winding.
  • the positioning of the coils 3 facilitates the correspondence between the coils 3 and the air groove 2.
  • spacing is provided between the coils 3 of the coil winding, so as to achieve a better heat dissipation effect of the coils 3 with self-heating. By configuring the position and size of the protrusions 4, the spacing between two coils of the coil winding can be controlled during winding.
  • the position and size of the protrusion 4 match the size of the coils 3 of the coil winding, so as to achieve a better heat dissipation effect.
  • a radial height H3 of the protrusion 4 is 0.5mm
  • a radial height H4 of the coil is 0.8mm.
  • the radial height H3 of the protrusion 4 is less than the radial height H4 of the coil, so as to better position the coil. Since the protrusion 4 is a part of the support body 1, it will also conduct part of the heat.
  • the radial height H3 of the protrusion 4 is less than the radial height H4 of the coil, so that the protrusion 4 can position the coil winding and keep the contact between the coils 3 and the support body 1 as small as possible, thus increasing the heat dissipation area of the coils 3 and reducing the heat transfer from the support body 1 to the coils 3.
  • the gap 5 is provided between at least two coils of the coils 3.
  • the heat of the coils 3 can be dissipated through the gap 5.
  • a plurality of gaps 5 are provided, and the plurality of the gaps 5 may be uniformly or non-uniformly distributed.
  • the coils 3 can be roughly divided into three portions in axial direction thereof, three to four coils are wound at an upper portion and a lower portion, and one coil is wound in a middle portion.
  • One gap 5 is provided between a middle layer coil and upper and lower layer coils, respectively, and the protrusions 4 are provided on both sides of the corresponding middle layer coil. The positioning of the coils 3 and the configuration of the gap 5 are implemented through the protrusions 4.
  • the gap 5 between the upper layer coil or the lower layer coil is less than the gap 5 between the upper layer coil and the middle layer coil, or the lower layer coil and the middle layer coil. That is, the upper and lower layer coils are relatively closely wound, the middle layer coil are sparsely wound, and the spacing between the coils can be gradually changed.
  • the coils 3 are arranged in a combination of dense winding and sparse winding.
  • the gap 5 can allow the self-heating of the coils to obtain better heat dissipation, so that different heat dissipation methods can be designed according to different products.
  • the aerosol generating device provided by an embodiment of the present invention includes the coil winding 1 described in the above embodiment.
  • a heating element 6 is provided inside the support body 1.
  • a shielding layer 9 is provided outside the coils 3.
  • a top of the support body 1 is provided with an upper cover 7, and a bottom of the support body 1 is provided with a lower cover 8.
  • a temperature measuring component 10 is also provided on the surface of the heating element 6 to detect a temperature of the surface of the heating element 6.
  • the support body 1 with the air grooves 2 in the present invention is compared with the support body 1 with no air grooves 2 in Comparative example 1, the surface temperature of the coil winding (that is, the temperature of the outermost layer of the heating element) is reduced by 6.53°C, and the surface temperature of a coil lead of the coils is reduced by 4.43°C.
  • Table 1 Temperature comparison between the Comparative example 1 and the present invention Unit: °C Comparative example 1 the present invention with the air layer difference surface of the coil winding 91.63 85.10 6.53 surface of the coil lead 84.70 80.27 4.43
  • the support body 1 with the air grooves 2 in the present invention is about 14mwh lower in energy consumption than Comparative example 2 with the winding fixing support for winding coils.
  • Table 2 Energy consumption comparison between Comparative example 2 and the present invention. Unit: mwh No. 1 No. 2 No. 3 average difference Comparative example 2 342 344 341 14 the present invention with the air layer 328 327 330
  • the air layer is formed between the coils 3 and the support body 1 by providing the air grooves on the outer surface of the support body 1, thereby reducing the heat transferring from the support body 1 to the coil.
  • the gaps 5 are provided between individual coils through the protrusions 4, which is beneficial to the heat dissipation of the coils 3 and reduces energy loss. Compared with the prior art, the energy consumption and the temperature of the coil winding can be significantly reduced, and the energy loss is reduced.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Motor Or Generator Cooling System (AREA)
EP23170292.9A 2022-05-23 2023-04-27 Enroulement de bobine et dispositif de génération d'aérosol Pending EP4284116A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210563546.2A CN114931239A (zh) 2022-05-23 2022-05-23 设置有空气夹层的线圈绕组及气溶胶生成装置

Publications (1)

Publication Number Publication Date
EP4284116A1 true EP4284116A1 (fr) 2023-11-29

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Application Number Title Priority Date Filing Date
EP23170292.9A Pending EP4284116A1 (fr) 2022-05-23 2023-04-27 Enroulement de bobine et dispositif de génération d'aérosol

Country Status (5)

Country Link
EP (1) EP4284116A1 (fr)
JP (1) JP2023172914A (fr)
KR (1) KR20230163291A (fr)
CN (1) CN114931239A (fr)
WO (1) WO2023226587A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114931239A (zh) * 2022-05-23 2022-08-23 深圳麦克韦尔科技有限公司 设置有空气夹层的线圈绕组及气溶胶生成装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3020292A1 (fr) * 2014-11-14 2016-05-18 Shenzhen First Union Technology Co., Ltd. Dispositif d'atomisation et cigarette electronique comportant celui-ci
US20190191782A1 (en) * 2016-08-31 2019-06-27 China Tobacco Yunnan Industrial Co.,Ltd Press and snorting type smoking paraphernalia for heating cigarettes
WO2020182754A1 (fr) * 2019-03-11 2020-09-17 Nicoventures Trading Limited Dispositif de fourniture d'aérosol
WO2021190214A1 (fr) * 2020-03-26 2021-09-30 深圳麦克韦尔科技有限公司 Dispositif de génération d'aérosol et ensemble de chauffage électromagnétique associé

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CN207754555U (zh) * 2017-12-22 2018-08-24 深圳市合元科技有限公司 一种加热装置及烟具
CN109330030A (zh) * 2018-11-08 2019-02-15 深圳市合元科技有限公司 烟支加热器、电加热吸烟装置及隔热组件
JP2022524405A (ja) * 2019-03-11 2022-05-02 ニコベンチャーズ トレーディング リミテッド エアロゾル供給デバイス
CN211047283U (zh) * 2019-11-15 2020-07-17 深圳因味科技有限公司 一种磁加热线圈结构
CN111449292A (zh) * 2020-05-26 2020-07-28 深圳市吉迩科技有限公司 气溶胶生成装置、气溶胶生成系统及气溶胶生成方法
CN113693294A (zh) * 2021-08-30 2021-11-26 惠州市新泓威科技有限公司 具有感应发热管的气溶胶生成装置
CN114931239A (zh) * 2022-05-23 2022-08-23 深圳麦克韦尔科技有限公司 设置有空气夹层的线圈绕组及气溶胶生成装置
CN217722703U (zh) * 2022-05-23 2022-11-04 深圳麦克韦尔科技有限公司 设置有空气夹层的线圈绕组及气溶胶生成装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3020292A1 (fr) * 2014-11-14 2016-05-18 Shenzhen First Union Technology Co., Ltd. Dispositif d'atomisation et cigarette electronique comportant celui-ci
US20190191782A1 (en) * 2016-08-31 2019-06-27 China Tobacco Yunnan Industrial Co.,Ltd Press and snorting type smoking paraphernalia for heating cigarettes
WO2020182754A1 (fr) * 2019-03-11 2020-09-17 Nicoventures Trading Limited Dispositif de fourniture d'aérosol
WO2021190214A1 (fr) * 2020-03-26 2021-09-30 深圳麦克韦尔科技有限公司 Dispositif de génération d'aérosol et ensemble de chauffage électromagnétique associé
US20230015720A1 (en) * 2020-03-26 2023-01-19 Shenzhen Smoore Technology Limited Aerosol generating device and electromagnetic heating assembly thereof

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Publication number Publication date
KR20230163291A (ko) 2023-11-30
WO2023226587A1 (fr) 2023-11-30
JP2023172914A (ja) 2023-12-06
CN114931239A (zh) 2022-08-23

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RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR