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WO2024245071A1 - Noyau d'atomisation et son procédé de fabrication, et appareil de génération d'aérosol - Google Patents

Noyau d'atomisation et son procédé de fabrication, et appareil de génération d'aérosol Download PDF

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Publication number
WO2024245071A1
WO2024245071A1 PCT/CN2024/094701 CN2024094701W WO2024245071A1 WO 2024245071 A1 WO2024245071 A1 WO 2024245071A1 CN 2024094701 W CN2024094701 W CN 2024094701W WO 2024245071 A1 WO2024245071 A1 WO 2024245071A1
Authority
WO
WIPO (PCT)
Prior art keywords
spiral portion
electrode
spiral
liquid inlet
atomizer core
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
PCT/CN2024/094701
Other languages
English (en)
Chinese (zh)
Inventor
刘斌
聂革
宋文正
李俊辉
胡勇齐
丁磊
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 Woody Vapes Technology Co Ltd
Original Assignee
Shenzhen Woody Vapes 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
Application filed by Shenzhen Woody Vapes Technology Co Ltd filed Critical Shenzhen Woody Vapes Technology Co Ltd
Publication of WO2024245071A1 publication Critical patent/WO2024245071A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

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
    • A24F40/10—Devices using liquid 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
    • A24F40/42—Cartridges or containers for inhalable precursors

Definitions

  • the present disclosure relates to the technical field of atomizers, and in particular to an atomizer core and a manufacturing method thereof, and an aerosol generating device.
  • An aerosol generating device is generally provided with an atomizer core, which is used to atomize the oil into an aerosol for the user to inhale. Therefore, the atomization effect of the atomizer core directly affects the user's experience.
  • the atomizer core generally includes a heating surface and an oil inlet surface.
  • the heating film of the existing atomizer core is generally attached to the heating surface and arranged horizontally. The distance between the heating surface and the oil inlet surface depends on the thickness of the substrate. When the thickness of the substrate is thicker, the atomization effect of the atomizer core is not ideal, and the user's inhalation experience is poor.
  • the present disclosure provides an atomizer core and a manufacturing method thereof, and an aerosol generating device, aiming to solve the problems of unsatisfactory atomization effect of the current atomizer core and poor user experience.
  • the present disclosure provides an atomizer core.
  • the atomizer core includes a porous matrix and a heating device.
  • One side of the porous matrix is a liquid inlet surface, and the other side of the porous matrix opposite to the liquid inlet surface is provided with an opening and a concave cavity corresponding to the opening, the inner wall of the concave cavity is an atomization surface, and the caliber of the concave cavity gradually decreases from the other side of the porous matrix toward the liquid inlet surface.
  • the heating device includes a heating element and a conductive component electrically connected to the heating element, the heating element is embedded in the atomization surface and fits the atomization surface, and the shape of the heating element is substantially consistent with the shape of the atomization surface.
  • the heating element includes a hollow spherical surface, the hollow spherical surface is provided with micropores for the aerosol after atomization to pass through, and the aerosol flows toward the opening after passing through the micropores.
  • the heating element includes a first spiral portion and a second spiral portion that are spaced apart, the first spiral portion and the second spiral portion spiral from the opening toward the liquid inlet surface, and the spiral directions of the first spiral portion and the second spiral portion are consistent.
  • the conductive component includes a first electrode and a second electrode arranged at intervals, the first spiral portion and the second spiral portion are both located between the first electrode and the second electrode, the first electrode is electrically connected to one end of the second spiral portion and the second electrode is electrically connected to one end of the first spiral portion, and the other end of the first spiral portion is electrically connected to the other end of the second spiral portion.
  • the other surface of the porous matrix includes two supporting surfaces, the two supporting surfaces are respectively located on both sides of the opening, and the first electrode and the second electrode are in sheet-like structures and are respectively attached to the two supporting surfaces.
  • the atomizer core further includes a plurality of liquid-conducting columns spaced apart and evenly distributed on the liquid inlet surface.
  • the diameter of the liquid-conducting column is in the range of 0.5 mm to 2 mm.
  • the height of the liquid-conducting column is in the range of 0.5 mm to 1.5 mm.
  • the distance between the inner wall of the cavity and the liquid inlet surface is smaller than the distance between the other surface of the porous matrix and the liquid inlet surface.
  • the present disclosure provides a method for manufacturing an atomizer core, comprising:
  • the atomizer core green body is degreased and sintered to obtain the atomizer core.
  • placing the heating film blank into a preset mold to obtain a heating film metal part includes: calculating the parameters required for the spiral figure according to a preset formula; making a first stamping mold and a second stamping mold according to the parameters; placing the heating mold blank into the first stamping mold to obtain a planar spiral body; and placing the planar spiral body into the second stamping mold to obtain a spiral spherical heating film metal part.
  • the present disclosure provides an aerosol generating device, which includes an oil storage tank, an oil inlet channel, a power supply device, and an atomizing core as described in any one of the above items.
  • the atomizer core is disposed below the oil storage bin and is connected to the oil storage bin through the oil inlet channel
  • the power supply device is disposed below the atomizer core and is connected to the heating device of the atomizer core.
  • the atomizing core and its manufacturing method and aerosol generating device provided by the present disclosure have one side of a porous substrate as a liquid inlet surface, and the other side opposite to the oil inlet surface is provided with a concave cavity, the inner wall of the concave cavity forms an atomizing surface, a heating element is embedded in the atomizing surface, the heat emitted by the heating element is concentrated in the concave cavity, and the distance between the liquid inlet surface and the inner wall of the concave cavity is short, so that oil is easy to enter the atomizing surface, thereby improving the atomization effect and the user's smoking experience.
  • FIG. 1 is a schematic diagram of the structure of an atomizer core provided in an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of the structure of a heating device provided in an embodiment of the present disclosure.
  • FIG. 3 is a top view of the heating device provided in an embodiment of the present disclosure.
  • FIG. 4 is a flow chart of a method for manufacturing an atomizer core provided in an embodiment of the present disclosure.
  • FIG5 is a schematic structural diagram of an aerosol generating device provided in an embodiment of the present disclosure.
  • Figure numerals 1000, aerosol generating device; 100, atomizing core; 10, porous matrix; 11, liquid inlet surface; 12, atomizing surface; 13, opening; 14, liquid guiding column; 15, cavity; 20, heating device; 21, heating element; 22, first spiral portion; 23, second spiral portion; 24, conductive component; 25, first electrode; 26, second electrode; 200, oil storage tank; 300, oil inlet channel; 400, power supply device; 500, aerosol channel; 600, base; 700, housing.
  • Figure 1 is a schematic diagram of the structure of the atomizer core 100 provided in an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of the structure of the heating device 20 provided in an embodiment of the present disclosure
  • Figure 3 is a top view of the heating device 20 provided in an embodiment of the present disclosure.
  • the atomizer core 100 includes a porous substrate 10 and a heating device 20.
  • One side of the porous substrate 10 is configured as a liquid inlet surface 11.
  • the other side of the porous substrate 10 opposite to the liquid inlet surface 11 is provided with an opening 13 and a concave cavity 15 corresponding to the opening 13.
  • the inner wall of the concave cavity 15 is formed as an atomization surface 12, and the caliber of the concave cavity 15 gradually decreases from the other side of the porous substrate 10 toward the liquid inlet surface 11.
  • the heating device 20 includes a heating element 21 and a conductive component 24 electrically connected to the heating element 21.
  • the heating element 21 is embedded in the atomization surface 12 and fits the atomization surface 12, and the shape of the heating element 21 is substantially consistent with the shape of the atomization surface 12.
  • the porous matrix 10 is the main body of the atomizing core 100, and a plurality of tiny openings are provided on its surface, the aperture of the openings is between 20 ⁇ m and 50 ⁇ m, and the porosity is between 55% and 70%.
  • the plurality of openings are evenly distributed on the surface of the porous matrix 10, which can increase the flow rate of the oil.
  • the porous matrix 10 includes an upper surface and a lower surface, the upper surface is a liquid inlet surface 11, and a concave cavity 15 is provided on the lower surface opposite to the upper surface.
  • the inner wall of the concave cavity 15 is an atomizing surface 12, and the caliber of the concave cavity 15 gradually decreases from the lower surface to the upper surface, that is, the shape of the concave cavity 15 is similar to an inverted bowl, which is convenient for concentrating heat.
  • the distance between the inner wall of the concave cavity 15 and the liquid inlet surface 11 is less than the distance between the lower surface and the liquid inlet surface 11.
  • the heating device 20 includes a heating element 21 and a conductive component 24 electrically connected to the heating element 21.
  • the heating element 21 is embedded in the atomizing surface 12 and is attached to the atomizing surface 12.
  • the conductive component 24 is used to provide electrical energy to the heating element 21.
  • the heating element 21 is used to heat the atomizing surface 12 and atomize the oil on the atomizing surface 12 into an aerosol. As shown by the arrow in FIG1 , the generated aerosol first flows downward, then flows out along the opening 13, then flows along the two sides of the porous matrix 10, and finally flows upward into the user's mouth. The time from the generation of the aerosol to the entry into the user's mouth is relatively long. During the flow of the aerosol, the temperature of the aerosol slowly decreases, which can prevent the user from burning his mouth when inhaling the aerosol.
  • the heating element 21 includes a hollow spherical surface, and the hollow spherical surface is provided with micropores for the aerosol after atomization to pass through, and the aerosol flows toward the opening 13 after passing through the micropores.
  • the heating element 21 may include a hollow spherical surface, the shape of which may be adapted to the shape of the concave cavity 15, so that the hollow spherical surface fits the inner wall of the concave cavity 15.
  • a plurality of micropores are provided on the hollow spherical surface, and the micropores are used for aerosol to pass through.
  • the heating element 21 atomizes the oil into aerosol, and the aerosol flows along the micropores to the opening 13, and flows from the opening 13 to both sides.
  • the heating element 21 includes a first spiral portion 22 and a second spiral portion 23 that are spaced apart, the first spiral portion 22 and the second spiral portion 23 spiral from the opening 13 toward the liquid inlet surface 11 , and the spiral directions of the first spiral portion 22 and the second spiral portion 23 are consistent.
  • the heating element 21 may also include a first spiral portion 22 and a second spiral portion 23 which are arranged at intervals, and the first spiral portion 22 and the second spiral portion 23 spiral from the opening 13 toward the liquid inlet surface 11, and the spiral directions of the first spiral portion 22 and the second spiral portion 23 are consistent.
  • the first spiral portion 22 and the second spiral portion 23 are both used as heating bodies, which are used to heat the atomization surface 12 so as to atomize the oil into an aerosol, and the gap between the first spiral portion 22 and the second spiral portion 23 can allow the aerosol to pass through.
  • the volume of the first spiral portion 22 and the second spiral portion 23 themselves is relatively small, the total area in contact with the atomization surface 12 is also relatively small, which can reduce the heat generation and avoid the core sticking phenomenon caused by too fast atomization speed and too high atomization temperature.
  • the conductive component 24 includes a first electrode 25 and a second electrode 26 that are spaced apart, the first spiral portion 22 and the second spiral portion 23 are both located between the first electrode 25 and the second electrode 26, the first electrode 25 is electrically connected to one end of the second spiral portion 23 and the second electrode 26 is electrically connected to one end of the first spiral portion 22, and the other end of the first spiral portion 22 is electrically connected to the other end of the second spiral portion 23.
  • the conductive component 24 may include a first electrode 25 and a second electrode 26 arranged at intervals, and the first spiral portion 22 and the second spiral portion 23 are arranged between the first electrode 25 and the second electrode 26, that is, the concave cavity 15 is located between the first electrode 25 and the second electrode 26.
  • the end of the first spiral portion 22 is connected to the second electrode 26, the end of the second spiral portion 23 is connected to the first electrode 25, and the tail of the first spiral portion 22 is connected to the tail of the second spiral portion 23.
  • the first electrode 25 is used to provide electrical energy to the second spiral portion 23, and the second electrode 26 is used to provide electrical energy to the first spiral portion 22.
  • the first spiral portion 22 and the second spiral portion 23 convert electrical energy into thermal energy to heat the atomizing surface 12.
  • the other side of the porous matrix 10 includes two support surfaces, the two support surfaces are respectively located on both sides of the opening 13, and the first electrode 25 and the second electrode 26 are in a sheet structure and are respectively attached to one of the corresponding support surfaces of the two support surfaces.
  • the two support surfaces can be understood as support areas.
  • the two support surfaces may be on the same plane or not, and this application does not limit it.
  • the two support surfaces are connected to each other.
  • the lower surface of the porous substrate 10 may be constructed with two support surfaces and a concave cavity 15, the concave cavity 15 is located between the two support surfaces, and an electrode is provided on each support surface.
  • the first electrode 25 is provided on the support surface on the right side
  • the second electrode 26 is provided on the support surface on the left side.
  • the first electrode 25 and the second electrode 26 are both sheet electrodes, so that the first electrode 25 and the second electrode 26 can be attached to the corresponding support surface.
  • the atomizer core 100 further includes a plurality of liquid-conducting columns 14 that are spaced apart and evenly distributed on the liquid inlet surface 11 .
  • the liquid inlet surface 11 may be provided with a plurality of liquid guiding columns 14 at intervals.
  • the number of liquid guiding columns 14 is related to the oil inlet efficiency. If a higher oil guiding efficiency is required, more liquid guiding columns 14 may be provided.
  • the diameter of the liquid guiding column 14 may be between 0.5 mm and 2 mm, and the height may be between 0.5 mm and 1.5 mm.
  • the present disclosure further provides a method for manufacturing an atomizer core.
  • the method for manufacturing an atomizer core includes operations S110-S130.
  • the prefabricated heating mold base is placed in a preset mold, and the preset mold is punched to obtain a heating film metal piece.
  • the preset mold is mainly used to limit the shape of the heating film metal piece so that the shape of the heating film metal piece obtained is the required shape.
  • the heating film metal part is placed in the injection mold and molded.
  • the base material is poured into the barrel of the injection molding machine.
  • the base material can be ceramic, and after being melted at 80°C, it is pushed into the injection mold by the injection molding machine screw at a pressure of 30 bar and a speed of 20 mm/s. After cooling and solidification, the injection mold is opened to obtain the atomizer core embryo combined with the base and the heating film.
  • the prepared atomizer core embryo is finally placed in a degreasing and sintering integrated furnace for burning and debonding to obtain an atomizer core.
  • a binder is usually added. Therefore, in order to ensure the purity of the matrix components, it is necessary to remove the binder by degreasing. After the binder is removed, the atomizer core embryo is fragile, and the pores between the powder particles can be eliminated by sintering to improve the density of the atomizer core embryo, thereby obtaining an atomizer core.
  • the flat spiral body is placed into a second stamping die to obtain a spiral spherical heating film metal part.
  • the heating mold base it is necessary to prepare the heating mold base in advance.
  • the parameters of the heating mold base can be set according to the specific substrate. For example, a 10mm*5mm*0.1mm iron-nickel metal sheet can be prepared as the heating mold base, and the sheet flatness of the iron-nickel metal sheet is controlled within 0.005mm.
  • the first stamping die and the second stamping die are designed according to the obtained length, width, and height.
  • the heating mold base is placed in the first stamping die, and is taken out after being stamped and cut by the first stamping die, thereby obtaining a planar spiral body.
  • the plane spiral body is then placed into a second stamping die, and the second stamping die is used to perform spherical bending, thereby obtaining a spiral spherical heating film metal part.
  • the present disclosure further provides an aerosol generating device 1000.
  • the aerosol generating device 1000 includes an oil storage tank 200, an oil inlet channel 300, a power supply device 400, and the atomizing core 100 in the above embodiment.
  • the atomizer core 100 is disposed below the oil storage bin 200 and communicates with the oil storage bin 200 through the oil inlet channel 300.
  • the power supply device 400 is disposed below the atomizer core 100 and connected to the heating device 20 of the atomizer core 100.
  • the aerosol generating device 1000 further includes an aerosol channel 500, a housing 700, and a base 600.
  • Oil storage bins 200 are provided on both sides of the housing 700, and the oil storage bins 200 store oil.
  • An atomizing core 100 is provided below the oil storage bin 200, and the oil storage bin 200 is connected to the liquid inlet surface 11 of the atomizing core 100 through the oil inlet channel 300.
  • the oil in the oil storage bin 200 can flow into the liquid inlet surface 11 of the atomizing core 100 through the oil inlet channel 300.
  • a heating device 20 is provided on the lower surface of the atomizing core 100, and the heating device 20 is connected to the power supply device 400.
  • the power supply device 400 is provided on the base 600, and the power supply device 400 provides electrical energy to the heating device 20, and the heating device 20 converts electrical energy into thermal energy to heat the atomizing surface 12, thereby atomizing the oil on the atomizing surface 12 into an aerosol.
  • the generated aerosol flows toward the opening 13, flows out from the opening 13, flows to the aerosol passage 500 from both sides of the porous substrate 10, and enters the user's mouth through the aerosol passage 500.
  • the time from the generation of the aerosol to the aerosol entering the user is relatively long, and during the flow of the aerosol, the temperature gradually decreases, which can prevent the user from burning the mouth.

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  • Resistance Heating (AREA)

Abstract

La présente invention concerne un noyau d'atomisation et son procédé de fabrication, et un appareil de génération d'aérosol. Le noyau d'atomisation comprend un substrat poreux et un appareil de chauffage. Une surface du substrat poreux est une surface d'admission de liquide, et une ouverture et une cavité concave correspondant à l'ouverture sont disposées sur l'autre surface du substrat poreux à l'opposé de la surface d'admission de liquide. Une paroi interne de la cavité concave est une surface d'atomisation, et le diamètre de la cavité concave diminue progressivement de l'autre surface du substrat poreux à la surface d'admission de liquide. L'appareil de chauffage comprend un corps chauffant et un ensemble conducteur électriquement connecté au corps chauffant. Le corps chauffant est intégré dans la surface d'atomisation et fixé à la surface d'atomisation, et la forme du corps chauffant est sensiblement cohérente avec la forme de la surface d'atomisation.
PCT/CN2024/094701 2023-06-02 2024-05-22 Noyau d'atomisation et son procédé de fabrication, et appareil de génération d'aérosol Pending WO2024245071A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310648203.0A CN116548675A (zh) 2023-06-02 2023-06-02 雾化芯及其制作方法以及气溶胶产生装置
CN202310648203.0 2023-06-02

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WO2024245071A1 true WO2024245071A1 (fr) 2024-12-05

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WO (1) WO2024245071A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116548675A (zh) * 2023-06-02 2023-08-08 深圳市吉迩科技有限公司 雾化芯及其制作方法以及气溶胶产生装置

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CN204191592U (zh) * 2014-10-21 2015-03-11 朱晓春 一种电子烟雾化器发热组件
CN212393869U (zh) * 2020-03-30 2021-01-26 深圳麦克韦尔科技有限公司 电子雾化装置及其雾化器和雾化组件
CN114652022A (zh) * 2022-04-13 2022-06-24 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置
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CN115363255A (zh) * 2021-10-29 2022-11-22 深圳市华诚达精密工业有限公司 加热雾化组件、雾化装置及其电子雾化器
CN116548675A (zh) * 2023-06-02 2023-08-08 深圳市吉迩科技有限公司 雾化芯及其制作方法以及气溶胶产生装置

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CN115226950A (zh) * 2022-08-18 2022-10-25 阿特麦哲(东莞)科技有限公司 一种储油体、具有该储油体的雾化芯及其制备方法

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Publication number Priority date Publication date Assignee Title
CN204191592U (zh) * 2014-10-21 2015-03-11 朱晓春 一种电子烟雾化器发热组件
CN212393869U (zh) * 2020-03-30 2021-01-26 深圳麦克韦尔科技有限公司 电子雾化装置及其雾化器和雾化组件
CN115363255A (zh) * 2021-10-29 2022-11-22 深圳市华诚达精密工业有限公司 加热雾化组件、雾化装置及其电子雾化器
CN114652022A (zh) * 2022-04-13 2022-06-24 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置
CN115281385A (zh) * 2022-07-29 2022-11-04 深圳麦克韦尔科技有限公司 电子雾化装置及其雾化器、雾化芯和雾化芯的制造方法
CN116548675A (zh) * 2023-06-02 2023-08-08 深圳市吉迩科技有限公司 雾化芯及其制作方法以及气溶胶产生装置

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