WO2018126848A1 - Ensemble coton d'atomisation, structure de guidage de liquide à vapoter et atomiseur de cigarette électronique - Google Patents

Ensemble coton d'atomisation, structure de guidage de liquide à vapoter et atomiseur de cigarette électronique Download PDF

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Publication number
WO2018126848A1
WO2018126848A1 PCT/CN2017/115446 CN2017115446W WO2018126848A1 WO 2018126848 A1 WO2018126848 A1 WO 2018126848A1 CN 2017115446 W CN2017115446 W CN 2017115446W WO 2018126848 A1 WO2018126848 A1 WO 2018126848A1
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WO
WIPO (PCT)
Prior art keywords
cup
cotton
oil
shaped
atomizing
Prior art date
Application number
PCT/CN2017/115446
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English (en)
Chinese (zh)
Inventor
郭小义
代远刚
尹新强
易建华
钟科军
刘建福
黄炜
于宏
周永权
Original Assignee
湖南中烟工业有限责任公司
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.)
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Application filed by 湖南中烟工业有限责任公司 filed Critical 湖南中烟工业有限责任公司
Publication of WO2018126848A1 publication Critical patent/WO2018126848A1/fr

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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44Wicks
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors

Definitions

  • the invention belongs to the technical field of electronic cigarettes, and particularly relates to an electronic aerosolized cotton component, an oil guiding structure and an atomizer.
  • the electronic cigarette atomizer is provided with an oil storage tank, an oil guiding structure and an atomizing sheet, wherein the oil guiding structure comprises an oil storage cotton which is connected with the oil storage tank, an atomizing cotton which is connected with the oil storage cotton and the atomizing sheet, and is used for In the support for the oil storage cotton and the atomized cotton, the oil in the oil tank is sequentially guided to the surface of the atomized sheet by the oil storage cotton and the atomized cotton.
  • the components of the existing oil guiding structure are independent parts, and are not formed integrally, so assembly is difficult, especially for the oily cotton wool and the atomized cotton which are soft in material, in the assembly process, since it needs to be a separate component. It is assembled into the outer tube of the atomizer, so it is easy to deform and wrinkle, affecting the consistency of the oil guide and easy to accumulate oil, which leads to insufficient oil supply during continuous operation of the atomized piece, and long assembly time, high cost and low efficiency.
  • the object of the present invention is to provide an electronic aerosolized cotton component, an oil guiding structure and an atomizer for the above-mentioned deficiencies of the prior art, which is convenient and simple to assemble, and the atomized cotton and the oil storage cotton are not easily deformed, and the oil guiding effect is good.
  • the technical solution adopted by the present invention is:
  • An electronic aerosolized cotton component comprising a cup-shaped atomized cotton, the structural feature further comprising a cup-shaped support frame, the cup-shaped atomized cotton sleeve being fixed on the outside of the cup-shaped support frame, the cup-shaped atomized cotton
  • the inner side wall is in contact with the outer side wall of the cup-shaped support frame, and the inner bottom surface of the cup-shaped atomized cotton is in contact with the outer bottom surface of the cup-shaped support frame, and the cup-shaped support frame is provided with a fog through hole;
  • the outer side wall of the atomized cotton is in communication with the oil tank, and the outer bottom surface of the cup-shaped atomized cotton is in contact with the atomizing surface of the atomizing sheet.
  • the cup-shaped atomized cotton is not easily deformed and wrinkled during assembly, and is easy to assemble and has an excellent oil guiding effect.
  • a fog-through hole is formed in the cup-shaped support frame for allowing the smoke atomized by the ultrasonic waves to pass, so that the user can quickly smoke the smoke.
  • the method further comprises sleeved on the outer part of the cup-shaped atomized cotton and is cup-shaped
  • the support frame has an interference fit fastening ring, and the fastening ring has an oil leakage hole connecting the oil tank and the cup-shaped atomized cotton.
  • the second preferred embodiment further includes a fastening ring disposed outside the upper portion of the cup-shaped atomized cotton, and the fastening ring has an oil leakage hole connecting the oil cartridge and the cup-shaped atomized cotton, the fastening ring
  • the cup holder is integrally formed by a rolling process.
  • the cup-shaped atomized cotton is fixed to the outside of the cup-shaped support frame by high-temperature adhesive.
  • the cup-shaped atomized cotton is fixed on the cup-shaped support frame by an interference fit between the fastening ring and the cup-shaped support frame, a rolling process or a high-temperature adhesive bonding to form an integral atomizing cotton component. Make assembly more convenient, more efficient, and reduce the cost of use.
  • the oil leakage hole on the fastening ring is mainly used for allowing the oil in the oil storage cotton to be absorbed by the atomizing cotton through the oil leakage hole, so that the oil path is turned on.
  • a gap is formed in the sidewall of the cup-shaped support frame.
  • the side wall of the cup-shaped support frame is provided with a notch, so that the cup-shaped support frame has a certain telescopic deformation capability in the vertical direction, so that the atomized cotton effectively abuts on the atomizing sheet.
  • the present invention also provides an electronic cigarette guiding oil structure, comprising an oil storage cotton in communication with an oil silo of the electronic cigarette, using the atomizing cotton assembly, the oil storage cotton and the cup shape The atomized cotton is in communication.
  • the oil storage cotton is sleeved outside the fastening ring; further comprising a limiting tube and a oil passage ring, the top of the limiting tube is provided a flange, the limiting tube extends into the cup-shaped support frame and has an interference fit with the cup-shaped support frame, the flange covering the top end surface of the atomizing cotton assembly and the top surface of the oil storage cotton;
  • the oil passage ring is sleeved outside the oil storage cotton, the outer side wall of the flange is interference fit with the top of the inner side wall of the oil passage ring, and the bottom of the oil passage ring is provided with a support portion for supporting the oil storage cotton, the support The end surface of the part is matched with the outer side wall of the atomizing cotton; the oil passage connecting the oil tank and the oil storage cotton is arranged on the oil passage ring.
  • the oil guiding structure is formed integrally, making it more convenient to assemble or replace, and reducing the use cost.
  • the present invention also provides an electronic cigarette atomizer comprising an oil storage assembly, a base assembly and the oil guiding structure;
  • the oil storage assembly comprising an outer tube, a nozzle holder and a suction nozzle,
  • the oil tank is connected to the oil storage cotton, and the top of the outer tube is fixedly connected to the suction nozzle through the nozzle holder;
  • the base assembly comprises a base, a connecting seat and an atomizing piece, and the connecting seat is fixed on the top of the base,
  • the atomizing sheet is horizontally fixed in the base;
  • the oil storage assembly and the base assembly are detachably connected to the connecting seat through the outer tube, and the top of the oil guiding assembly is stored
  • the oil components are in contact with each other, and the bottom of the oil guiding component is in contact with the top surface of the atomizing sheet; the air inlet hole and the suction nozzle of the electronic cigarette are connected to the inner surface of the cup-shaped atomizing cotton.
  • the electronic cigarette atomizer is composed of three components, and the oil guiding structure is fixed by the oil storage assembly and the base assembly, so that the replacement and maintenance of the oil guiding structure is more convenient.
  • the outer tube is provided with a first air tube
  • the bottom of the nozzle is provided with a second air tube connecting the nozzle and the cup-shaped atomizing cotton inner cavity
  • the air inlet hole is opened at the top of the nozzle holder
  • a bottom portion of the air pipe is fixed with a first step portion fixed to the top of the oil guiding structure
  • the connecting seat is provided with a second step portion fixed to the supporting portion; the outer tube, the first air pipe, the nozzle seat and the connecting portion
  • the oil compartment is enclosed between the seats, and the air inlet hole, the first air pipe, the cup-shaped atomizing cotton inner cavity, the second air pipe and the suction nozzle are sequentially connected.
  • the oil guiding assembly is disposed between the connecting seat of the base assembly and the first air pipe of the oil storage assembly, and the oil guiding structure is disassembled by the connection relationship between the oil storage assembly and the base assembly, and the disassembly is convenient.
  • the base assembly further includes a silicone seat, an inner electrode and an insulating ring.
  • the atomizing piece is fixed in the silicone seat through a silicone seat, the inner electrode is sleeved inside the base, and the inner electrode and the base are insulated. Ring insulated connection.
  • the invention is convenient and simple to assemble, the atomized cotton and the oil storage cotton are not easily deformed, the oil guiding effect is good, the work is reliable, and the use cost is low.
  • FIG. 1 is a perspective cross-sectional view of a first embodiment of an atomizing cotton assembly.
  • Figure 2 is an exploded view of Figure 1.
  • Figure 3 is a perspective cross-sectional view of the second embodiment of the atomized cotton assembly.
  • Figure 4 is an exploded view of Figure 3.
  • Fig. 5 is a schematic structural view of an embodiment of an oil guiding structure.
  • Figure 6 is a front cross-sectional view of an embodiment of an atomizer.
  • Figure 7 is an exploded view of the assembly of Figure 6.
  • Figure 8 is an exploded view of Figure 6.
  • 1 is an oil storage assembly
  • 11 is an outer tube
  • 12 is a nozzle holder
  • 121 is an air inlet hole
  • 13 is a suction nozzle
  • 14 is a first air tube
  • 141 is a first step portion
  • 15 is a second air tube
  • 16 For the oil tank, 2 for the base assembly, 21 for the base, 22 for the base, 221 for the second step, 23 for the atomizer, 24 for the silicone seat, 25 for the inner electrode, 26 for the insulation ring, 3 for the oil guide Structure
  • 31 is cup-shaped atomized cotton
  • 32 is cup-shaped support frame
  • 321 is fog-through through hole
  • 322 is notch
  • 33 is fastening ring
  • 331 is oil leakage hole
  • 34 is limit tube
  • 341 is flange
  • 35 is Through the oil ring
  • 351 is the support part
  • 352 is the oil sump
  • 36 is the oil storage cotton.
  • the first embodiment of the electronic aerosolized cotton assembly includes a cup-shaped atomized cotton 31 and a cup-shaped support frame 32, and the cup-shaped atomized cotton 31 is sleeved and fixed on the outside of the cup-shaped support frame 32.
  • the inner side wall of the cup-shaped atomized cotton 31 is in contact with the outer side wall of the cup-shaped support frame 32, and the inner bottom surface of the cup-shaped atomized cotton 31 is in contact with the outer bottom surface of the cup-shaped support frame 32, the cup shape A fog through hole 321 is defined in the support frame 32.
  • the outer side wall of the cup-shaped atomized cotton 31 communicates with the oil sump 16, and the outer bottom surface of the cup-shaped atomized cotton 31 is in contact with the atomizing surface of the atomizing sheet 23.
  • the electronic aerosolized cotton assembly further includes a fastening ring 33 disposed outside the upper portion of the cup-shaped atomizing cotton 31 and in an interference fit with the cup-shaped support frame 32, the fastening ring 33 is provided with a communication oil tank 16 and a cup-shaped mist.
  • the oil leakage hole 331 of the cotton 31 is provided outside the upper portion of the cup-shaped atomizing cotton 31 and in an interference fit with the cup-shaped support frame 32, the fastening ring 33 is provided with a communication oil tank 16 and a cup-shaped mist.
  • the cup-shaped atomized cotton 31 can also be fixed to the outside of the cup-shaped support frame 32 by high-temperature adhesive, and it is not necessary to sleeve the fastening ring 33 at this time.
  • the structure of the second embodiment of the electronic aerosolized cotton assembly is similar to that of the first embodiment, except that the fastening ring 33 and the cup-shaped support frame 32 are integrally formed by a rolling process to facilitate assembly.
  • a notch 322 is defined in the sidewall of the cup-shaped support frame 32.
  • the electronic cigarette guiding oil structure comprises an oil storage cotton 36 in communication with the oil silo 16 of the electronic cigarette, and the electronic aerosolized cotton assembly described in the first embodiment, the oil storage cotton 36 and the cup shape.
  • the atomized cotton 31 is in communication.
  • the oil storage cotton 36 is sleeved outside the fastening ring 33; further includes a limiting tube 34 and a oil passage ring 35.
  • the top of the limiting tube 34 is provided with a flange 341, and the limiting tube 34 extends into the
  • the cup-shaped support frame 32 has an interference fit with the cup-shaped support frame 32, and the flange 341 covers the top end surface of the atomizing cotton assembly and the top surface of the oil storage cotton 36;
  • the outer side wall of the flange 341 is disposed in an interference fit with the top of the inner side wall of the oil passage ring 35.
  • the bottom of the oil passage ring 35 is provided with a support portion 351 for supporting the oil storage cotton 36.
  • the support is provided.
  • the end surface of the portion 351 is in contact with the outer side wall of the cup-shaped atomized cotton 31; the oil passage 35 has an oil passage 352 that communicates with the oil reservoir 16 and the oil storage cotton 36.
  • the electronic cigarette atomizer includes an oil storage assembly 1, a base assembly 2, and the oil guiding structure 3;
  • the oil storage assembly 1 includes an outer tube 11, a nozzle holder 12, and a suction nozzle 13.
  • the outer tube 11 is provided with a oil tank 16 communicating with the oil storage cotton 36, and the top of the outer tube 11 is fixedly connected to the suction nozzle 13 through the nozzle holder 12;
  • the base assembly 2 includes a base 21, a connecting seat 22 and an atomizing sheet 23, the connecting seat 22 is fixed on the top of the base 21, the atomizing sheet 23 is horizontally fixed in the base 21;
  • the oil storage assembly 1 and the base assembly 2 are detachably connected to the connecting seat 22 through the outer tube 11, The bottom of the side wall of the outer tube 11 is screwed to the top of the connecting seat 22.
  • the top of the oil guiding assembly is in contact with the oil storage assembly 1, and the bottom of the oil guiding assembly is in contact with the top surface of the atomizing sheet 23; the air inlet hole 121 and the suction nozzle 13 of the electronic cigarette are both in contact with the inner surface of the cup-shaped atomizing cotton 31. Connected.
  • a first air pipe 14 is disposed in the outer tube 11, and a second air pipe 15 is disposed at the bottom of the suction nozzle 13 to communicate the suction nozzle 13 and the inner cavity of the cup-shaped atomizing cotton 31.
  • the air inlet hole 121 is defined in the nozzle seat 12
  • the top portion of the first air pipe 14 is provided with a first step portion 141 for fixing the top of the oil guiding structure 3
  • the connecting seat 22 is provided with a second step portion 221 for limiting the fixing portion 351; the oil guiding structure 3 is disposed Between the connecting seat 22 of the base assembly 2 and the first air pipe 14 of the oil storage assembly 1, the oil guiding structure 3 is fixed by tightening the base assembly 2, so that the oil guiding structure 3 is replaced and repaired more conveniently.
  • the outer tube 11, the first air tube 14, the nozzle holder 12 and the connecting seat 22 enclose an oil reservoir 16, the air inlet 121, the first air tube 14, the inner surface of the cup-shaped atomizing cotton 31, and the second
  • the air tube 15 and the suction nozzle 13 are in communication.
  • the direction indicated by the solid arrow is the direction of the oil guide
  • the direction indicated by the dotted arrow is the direction of the air flow.
  • the base assembly 2 further includes a silicone seat 24, an inner electrode 25 and an insulating ring 26.
  • the atomizing sheet 23 is fixed in the silicone seat 24 through a silicone seat 24, and the inner electrode 25 is sleeved inside the base 21, and the inner electrode 25 is insulated from the base 21 by an insulating ring 26.

Abstract

La présente invention concerne un ensemble coton d'atomisation, une structure de guidage de liquide à vapoter (3) et un atomiseur d'une cigarette électronique. L'ensemble coton d'atomisation d'une cigarette électronique comprend un coton d'atomisation en forme de coupelle (31) et un cadre de support en forme de coupelle (32) ; le coton d'atomisation en forme de coupelle (31) est emmanché et fixé à l'extérieur du cadre de support en forme de coupelle (32) ; la paroi latérale interne du coton d'atomisation en forme de coupelle (31) est fixée à la paroi latérale externe du cadre de support en forme de coupelle (32) ; la surface inférieure interne du coton d'atomisation en forme de coupelle (31) est fixée à la surface inférieure externe du cadre de support en forme de coupelle (32) ; le cadre de support en forme de coupelle (32) est doté d'un trou traversant de sortie de vapeur (321) ; la paroi latérale externe du coton d'atomisation en forme de coupelle (31) est en communication avec un compartiment de liquide à vapoter (16) ; la surface inférieure externe du coton d'atomisation en forme de coupelle (31) est reliée à une surface d'atomisation d'une feuille d'atomisation (23). L'ensemble coton d'atomisation, la structure de guidage de liquide à vapoter (3) et l'atomiseur de la cigarette électronique sont pratiques et faciles à assembler ; le coton d'atomisation en forme de coupelle (31) et le coton de stockage de liquide à vapoter (36) ne se déforment pas facilement, et ont un bon effet de guidage de liquide à vapoter, une fiabilité de fonctionnement élevée et de faibles coûts d'utilisation.
PCT/CN2017/115446 2017-01-09 2017-12-11 Ensemble coton d'atomisation, structure de guidage de liquide à vapoter et atomiseur de cigarette électronique WO2018126848A1 (fr)

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Application Number Priority Date Filing Date Title
CN201720018551.XU CN206433760U (zh) 2017-01-09 2017-01-09 一种电子烟雾化棉组件、导油结构及雾化器
CN201720018551.X 2017-01-09

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206433760U (zh) * 2017-01-09 2017-08-25 湖南中烟工业有限责任公司 一种电子烟雾化棉组件、导油结构及雾化器
CN108451041A (zh) * 2018-04-20 2018-08-28 惠州市新泓威科技有限公司 具有保温杯的烘烤型电子烟加热装置
WO2021121356A1 (fr) * 2019-12-20 2021-06-24 湖南中烟工业有限责任公司 Atomiseur à ultrasons et céramique de guidage d'huile

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203234038U (zh) * 2013-03-04 2013-10-16 刘秋明 电子烟
CN203676145U (zh) * 2014-02-12 2014-07-02 刘秋明 电子烟
CN204070572U (zh) * 2014-08-20 2015-01-07 深圳市合元科技有限公司 雾化器及电子烟
WO2015010291A1 (fr) * 2013-07-24 2015-01-29 吉瑞高新科技股份有限公司 Cigarette électronique
CN204217901U (zh) * 2014-07-22 2015-03-25 向高峰 液体电子雾化器
CN204670383U (zh) * 2015-03-27 2015-09-30 惠州市吉瑞科技有限公司 雾化器及电子烟
CN105559151A (zh) * 2016-03-21 2016-05-11 湖南中烟工业有限责任公司 一种超声波雾化器及电子烟
WO2016082180A1 (fr) * 2014-11-28 2016-06-02 惠州市吉瑞科技有限公司 Élément d'atomisation et cigarette électronique
CN105876873A (zh) * 2016-06-30 2016-08-24 湖南中烟工业有限责任公司 一种组合式超声雾化器及其雾化方法、电子烟
CN206433760U (zh) * 2017-01-09 2017-08-25 湖南中烟工业有限责任公司 一种电子烟雾化棉组件、导油结构及雾化器

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203234038U (zh) * 2013-03-04 2013-10-16 刘秋明 电子烟
WO2015010291A1 (fr) * 2013-07-24 2015-01-29 吉瑞高新科技股份有限公司 Cigarette électronique
CN203676145U (zh) * 2014-02-12 2014-07-02 刘秋明 电子烟
CN204217901U (zh) * 2014-07-22 2015-03-25 向高峰 液体电子雾化器
CN204070572U (zh) * 2014-08-20 2015-01-07 深圳市合元科技有限公司 雾化器及电子烟
WO2016082180A1 (fr) * 2014-11-28 2016-06-02 惠州市吉瑞科技有限公司 Élément d'atomisation et cigarette électronique
CN204670383U (zh) * 2015-03-27 2015-09-30 惠州市吉瑞科技有限公司 雾化器及电子烟
CN105559151A (zh) * 2016-03-21 2016-05-11 湖南中烟工业有限责任公司 一种超声波雾化器及电子烟
CN105876873A (zh) * 2016-06-30 2016-08-24 湖南中烟工业有限责任公司 一种组合式超声雾化器及其雾化方法、电子烟
CN206433760U (zh) * 2017-01-09 2017-08-25 湖南中烟工业有限责任公司 一种电子烟雾化棉组件、导油结构及雾化器

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