WO2017072284A1 - Dispositif à fumer électronique, cartomiseur et réservoir de liquide - Google Patents

Dispositif à fumer électronique, cartomiseur et réservoir de liquide Download PDF

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Publication number
WO2017072284A1
WO2017072284A1 PCT/EP2016/076049 EP2016076049W WO2017072284A1 WO 2017072284 A1 WO2017072284 A1 WO 2017072284A1 EP 2016076049 W EP2016076049 W EP 2016076049W WO 2017072284 A1 WO2017072284 A1 WO 2017072284A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid reservoir
liquid
piston
atomizer
smoking device
Prior art date
Application number
PCT/EP2016/076049
Other languages
English (en)
Inventor
Neha Daryani
Lutz Deichmann
Original Assignee
Fontem Holdings 1 B.V.
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 Fontem Holdings 1 B.V. filed Critical Fontem Holdings 1 B.V.
Priority to CN201680062841.2A priority Critical patent/CN108289506B/zh
Priority to US15/770,734 priority patent/US20180317551A1/en
Publication of WO2017072284A1 publication Critical patent/WO2017072284A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • 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
    • 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

Definitions

  • Some electronic smoking devices comprise a cartomizer which is a replaceable unit comprising the atomizer and the reservoir for the liquid.
  • a liquid reservoir for an electronic smoking device comprises a body forming a hollow tube surrounding a central passage connecting ports for attaching the liquid reservoir to further portions of the electronic cigarette.
  • the liquid reservoir further comprises a nozzle towards the central passage, the nozzle being configured to release liquid from the liquid reservoir only when pressure drop along the nozzle exceeds a threshold pressure.
  • a user can produce the pressure drop by sucking at an inhalation port of the electronic smoking device and/or by manually changing a length of the central passage thereby causing compression of the liquid reservoir.
  • FIG. 1 is a schematic cross-sectional illustration of an exemplary e-cigarette
  • FIG. 1 is an exemplary illustration of a liquid reservoir according to an aspect of the invention.
  • FIG. 1 is an exemplary illustration of the liquid reservoir of figure 2 partly dissembled; is a schematic cross-sectional illustration of figure 2 when the liquid reservoir is uncompressed;
  • FIG. 1 is a schematic cross-sectional illustration of figure 2 when the liquid reservoir is compressed
  • FIG. 1 is a schematic cross-sectional illustration of a further liquid reservoir according to an aspect of the invention.
  • FIG. 1 is a schematic cross-sectional illustration of a yet further liquid reservoir according to an aspect of the invention.
  • FIG. 1 is a schematic cross-sectional illustration of an even yet further liquid reservoir according to an aspect of the invention.
  • an electronic smoking device typically has a housing comprising a cylindrical hollow tube having an end cap 16.
  • the cylindrical hollow tube may be single piece or a multiple piece tube.
  • the cylindrical hollow tube is shown as a two piece structure having a battery portion 12 and an atomizer/liquid reservoir portion 14. Together the battery portion 12 and the atomizer/liquid reservoir portion 14 form a cylindrical tube which is approximately the same size and shape as a conventional cigarette, typically about 100 mm with a 7.5 mm diameter, although lengths may range from 70 to 150 or 180 mm, and diameters from 5 to 20 mm.
  • the battery portion 12 and atomizer/liquid reservoir portion 14 are typically made of steel or hardwearing plastic and act together with the end cap 16 to provide a housing to contain the components of the e-cigarette 10.
  • the battery portion 12 and an atomizer/liquid reservoir portion 14 may be configured to fit together by a friction push fit, a snap fit, or a bayonet attachment, magnetic fit, or screw threads.
  • the end cap 16 is provided at the front end of the battery portion 12.
  • the end cap 16 may be made from translucent plastic or other translucent material to allow an LED 20 positioned near the end cap to emit light through the end cap.
  • the end cap can be made of metal or other materials that do not allow light to pass.
  • a battery 18, a light emitting diode (LED) 20, control electronics 22 and optionally an airflow sensor 24 are provided within the cylindrical hollow tube battery portion 12.
  • the battery 18 is electrically connected to the control electronics 22, which are electrically connected to the LED 20 and the airflow sensor 24.
  • the LED 20 is at the front end of the battery portion 12, adjacent to the end cap 16 and the control electronics 22 and airflow sensor 24 are provided in the central cavity at the other end of the battery 18 adjacent the atomizer/liquid reservoir portion 14.
  • the airflow sensor 24 acts as a puff detector, detecting a user puffing or sucking on the atomizer/liquid reservoir portion 14 of the e-cigarette 10.
  • the airflow sensor 24 can be any suitable sensor for detecting changes in airflow or air pressure such a microphone switch including a deformable membrane which is caused to move by variations in air pressure.
  • the sensor may be a Hall element or an electro-mechanical sensor.
  • the central passage 32 is surrounded by a cylindrical liquid reservoir 34 with the ends of the wick 30 abutting or extending into the liquid reservoir 34.
  • the wick 30 may be a porous material such as a bundle of fiberglass fibers, with liquid in the liquid reservoir 34 drawn by capillary action from the ends of the wick 30 towards the central portion of the wick 30 encircled by the heating coil 28.
  • the liquid reservoir 34 may alternatively include wadding soaked in liquid which encircles the central passage 32 with the ends of the wick 30 abutting the wadding.
  • the liquid reservoir 34 may comprise a toroidal cavity arranged to be filled with liquid and with the ends of the wick 30 extending into the toroidal cavity.
  • An air inhalation port 36 is provided at the back end of the atomizer/liquid reservoir portion 14 remote from the end cap 16.
  • the inhalation port 36 may be formed from the cylindrical hollow tube atomizer/liquid reservoir portion 14 or maybe formed in an end cap.
  • a user sucks on the e-cigarette 10.
  • This causes air to be drawn into the e-cigarette 10 via one or more air inlets, such as air inlets 38 and to be drawn through the central passage 32 towards the air inhalation port 36.
  • the change in air pressure which arises is detected by the airflow sensor 24 which generates an electrical signal that is passed to the control electronics 22.
  • the control electronics 22 activate the heating coil 28 which causes liquid present in the wick 30 to be vaporized creating an aerosol (which may comprise gaseous and liquid components) within the central passage 32.
  • this aerosol is drawn through the central passage 32 and inhaled by the user.
  • control electronics 22 also activate the LED 20 causing the LED 20 to light up which is visible via the translucent end cap 16 mimicking the appearance of a glowing ember at the end of a conventional cigarette.
  • the control electronics 22 also activate the LED 20 causing the LED 20 to light up which is visible via the translucent end cap 16 mimicking the appearance of a glowing ember at the end of a conventional cigarette.
  • liquid present in the wick 30 is converted into an aerosol more liquid is drawn into the wick 30 from the liquid reservoir 34 by capillary action and thus is available to be converted into an aerosol through subsequent activation of the heating coil 28.
  • Some e-cigarette are intended to be disposable and the electric power in the battery 18 is intended to be sufficient to vaporize the liquid contained within the liquid reservoir 34 after which the e-cigarette 10 is thrown away.
  • the battery 18 is rechargeable and the liquid reservoir 34 is refillable. In the cases where the liquid reservoir 34 is a toroidal cavity, this may be achieved by refilling the liquid reservoir 34 via a refill port.
  • the atomizer/liquid reservoir portion 14 of the e-cigarette 10 is detachable from the battery portion 12 and a new atomizer/liquid reservoir portion 14 can be fitted with a new liquid reservoir 34 thereby replenishing the supply of liquid.
  • replacing the liquid reservoir 34 may involve replacement of the heating coil 28 and the wick 30 along with the replacement of the liquid reservoir 34.
  • a replaceable unit comprising the atomizer 26 and the liquid reservoir 34 is called a cartomizer.
  • the LED 20 may be omitted.
  • the airflow sensor 24 may be placed adjacent the end cap 16 rather than in the middle of the e-cigarette.
  • the airflow sensor 24 may be replaced with a switch which enables a user to activate the e-cigarette manually rather than in response to the detection of a change in air flow or air pressure.
  • the atomizer may have a heating coil in a cavity in the interior of a porous body soaked in liquid.
  • aerosol is generated by evaporating the liquid within the porous body either by activation of the coil heating the porous body or alternatively by the heated air passing over or through the porous body.
  • the atomizer may use a piezoelectric atomizer to create an aerosol either in combination or in the absence of a heater.
  • Figure 2 is a schematic illustration of a liquid reservoir according to an aspect of the invention and in figure 3 the liquid reservoir of figure 2 is illustrated schematically in a partly dissembled state.
  • Figure 4 is a schematic cross-sectional illustration of figure 2 when the liquid reservoir is uncompressed and
  • Figure 5 is a schematic cross-sectional illustration of figure 2 when the liquid reservoir is compressed.
  • the liquid reservoir 34 comprises a body in form of a hollow cylinder 1 10 into which a tubal element 120 is inserted.
  • the tubal element 120 has an annularly protruding ring 121 on one end.
  • the ring's 121 outer diameter corresponds to the hollow cylinder's 1 10 inner diameter such that the hollow cylinder 1 10 can be closed at one end by insertion of the tubal element 120 into the hollow cylinder 1 10 with a toroidal cavity remaining between the tubal element 120 and the cylinder 1 10.
  • Cylinder 1 10, ring 121 and pin hole 123 are configured such that once assembled the cavity is water proof as long as pressure drop along the pin hole 123 does not exceed a threshold pressure. I.e. to get liquid to escape from the cavity, through the pin hole 123, pressure has to be build up in the cavity.
  • the cartomizer depicted in figures 2 and 3 further comprises a hollow piston 130.
  • the piston 130 is a further tubal element with an outer diameter corresponding to the inner diameter of the hollow cylinder 1 10 and, in addition, an inner diameter of the hollow piston 130 corresponds to an outer diameter of the tubal element 120 such that the hollow cylinder 1 10 can be closed at the other end by insertion of the piston 1 30 into the hollow cylinder 1 10 and onto the tubal element 120.
  • At an end of the piston 130 determined for insertion into the cylinder there are an inner gasket ring 132 at the inner surface of the tubal piston 130 and an outer gasket ring 131 at the outer surface of the piston 130.
  • a limiting element 140 is further comprised.
  • the limiting element 140 is formed to be hollow and cylindrical and comprises a plate 142 at one end.
  • An axial hole 1 19 is provided through the plate 142, the axial hole 1 19 having a diameter corresponding to an outer diameter of the piston 120.
  • the limiting element 140 has an inner diameter corresponding to the outer diameter of the hollow cylinder 1 10 such that the limiting element 140 can be fit on the hollow cylinder 1 10.
  • the limiting element 140 comprises a female thread and the hollow cylinder 1 10 comprises a male thread such that the limiting element 140 and the hollow cylinder 1 10 can be screwed together.
  • the piston 130 comprises a thickened part 134, also called annular protrusion throughout this specification, which has an outer diameter larger than the axial hole 1 19. Hence the thickened part 134 cannot pass through the axial hole 1 19.
  • the limiting element thereby limits movement of the piston 130.
  • a resilient element which in the example illustrated is a spring 150.
  • the piston passes through the spring.
  • the user when pushing the piston for reducing the volume of the cavity, compresses the spring which, once the user stops holding the piston, moves the piston back.
  • the limiting element prevents the piston from escaping from the hollow cylinder. Moving the piston into the hollow cylinder increases the pressure therein with liquid squirting through the pin hole once the pressure increase exceeds a threshold pressure. When the spring moves back the piston air enters into the cavity through the pin hole 123.
  • a heating coil is an integral part of a battery portion of the electronic smoking device and the liquid reservoir is detachable from the battery portion.
  • the atomizer is an integral part of the cartomizer and the cartomizer is detachable from the battery portion.
  • the atomizer is detachable from both the liquid reservoir and the battery portion.
  • the atomizer, respectively the cartomizer, and the battery portion comprise elements for electrically connecting the atomizer, respectively the cartomizer, to a battery comprised in the battery portion when being attached thereto.
  • the elements and the counter-elements can be a pair of female and male coaxial threads, for instance.
  • the spring is arranged between the plate 142 of the limiting element 140 and the thickened part 134 of the piston 130.
  • the user when pulling the piston 130, increases the volume of the cavity with air entering through the pin hole 123 and compresses the spring 150. Once the user stops holding the piston 130, the spring moves the piston 130 back thereby reducing the volume again and squirting out liquid trough the pin hole 123.
  • Figure 7 is a schematic cross-sectional illustration of a further cartomizer comprising a liquid reservoir according to an embodiment of the invention.
  • the cartomizer 100 comprises a hollow cylinder 1 10 having a plate 1 1 1 with an axial hole 1 19 at one end. Through the axial hole 1 19 and fitting thereto passes a piston 130.
  • the piston 130 has an annularly protruding ring 121 on one end 122.
  • the ring's 121 outer diameter corresponds to the hollow cylinder's 1 10 inner diameter such that the hollow cylinder 1 10 can be closed at one end by insertion of the piston 130 into the hollow cylinder 1 10 with a toroidal cavity remaining between the piston 130 and the cylinder 1 10.
  • Around the ring there are an outer gasket ring, for instance in an annular furrow. At an inner surface of the axial hole 1 19 there is an outer gasket ring.
  • the inner gasket ring seals the piston 130 with respect to the plate.
  • the outer gasket ring seals the piston 130 with respect to the hollow cylinder 1 10.
  • inner gasket ring is provided in the axial hole 1 19 and/or the outer gasket ring is provided in the hollow cylinder.
  • the gasket rings may be positioned in an annular furrow.
  • Cylinder, ring, gasket and pin hole are configured such that once assembled the cavity is water proof as long as pressure drop along the pin hole does not exceed a threshold pressure. I.e. to get liquid to escape from the cavity, through the pin hole, pressure has to be build up in the cavity.
  • the piston 130 can be moved in the hollow cylinder 1 10.
  • the user then can change volume of the cavity and thus the pressure in the cavity.
  • a limiting element 140 is further comprised.
  • the limiting element 140 is hollow and cylindrical and comprises a plate 142 at one end.
  • An axial hole 143 is provided through the plate 142, the axial hole 143 having a diameter corresponding to an outer diameter of the piston 130.
  • the limiting element 140 has an inner diameter corresponding to the outer diameter of the hollow cylinder 1 10 such that the limiting element 140 can be fit on the hollow cylinder 1 10.
  • the limiting element 140 comprises a female thread and the hollow cylinder 1 10 comprises a male thread such that the limiting element 140 and the hollow cylinder 1 10 can be screwed together.
  • Exemplary other ways of fitting comprise press-fit, snap-fit and the like.
  • the piston 130 comprises a thickened part 134, also called annular protrusion throughout this specification, which has an outer diameter larger than the axial holes 1 19 and 143. Hence the thickened part 134 cannot pass through the axial holes. The limiting element thereby limits, together with the plate of the hollow cylinder, movement of the piston 130.
  • Figure 8 shows another exemplary embodiment of the invention, the spring is arranged between the hollow cylinder and the thickened part 134 of the piston 130.
  • the user when pushing the piston 130, increases the volume of the cavity with air entering through the pin hole 123 and compresses the spring 150. Once the user stops holding the piston 130, the spring 150 moves the piston 130 back thereby reducing the volume again and squirting out liquid trough the pin hole 123.
  • the hollow cylinder 1 10 may be made of transparent material. Then the remaining liquid in the liquid reservoir 34 is well visible.
  • An aspect of the invention concerns a liquid reservoir 34 for an electronic smoking device 10.
  • the liquid reservoir 34 has a body 1 10 forming a hollow tube surrounding a central passage 32 connecting an air inhalation port 36 with a further port for attaching the liquid reservoir 34 to a further portion of the electronic cigarette 10.
  • the liquid reservoir 34 further has a nozzle 132 towards the central passage 32, the nozzle 32 being configured to release liquid from the reservoir 34 only when pressure drop along the nozzle 32 exceeds a threshold pressure.
  • a user can produce the pressure drop by sucking at an air inhalation port 36 of the electronic smoking device 10 and/or by manually changing a length of the central passage 32 thereby causing compression of the liquid reservoir 34.
  • the pressure drop can be produced only by the user sucking at the air inhalation port 36.
  • the pressure drop can be produced only by compressing the liquid reservoir 34 such that a pressure in the liquid reservoir 34 is increased at least by the threshold pressure.
  • the liquid reservoir 34 may comprise a hollow cylindrical body 1 10 closed on one end with a plate 121 in which the nozzle 123 is arranged and having an open opposite end opposite to the one end.
  • a piston 130 may be inserted through the open end into the hollow cylindrical body 1 10 for closing the open end. The user may be enabled to move the piston 130 with respect to the hollow cylindrical body 1 10 for causing compression of the liquid reservoir 34.
  • the user may be enabled to compress the liquid reservoir 34 from having a first volume to having a smaller second volume.
  • a resilient element 150 may be present for expanding the compressed liquid reservoir 34 to the first volume once the user stops compressing the liquid reservoir 34.
  • the resilient element 150 may comprise a spring arranged between the open end and an annular protrusion 134 around the hollow rod 133 of the piston 130.
  • a limiting element 140 may be further comprised. The limiting element 140 may be configured to preventing the piston 130 from exiting through the open end.
  • the user may be enabled to reduce a length of the central passage 12 for compressing the liquid reservoir 34.
  • Another aspect of the invention concerns a cartomizer.
  • the cartomizer comprises a liquid reservoir 34 and an electrically operable atomizer 26 configured for vaporizing or atomizing liquid supplied from the liquid reservoir 34 and for providing vaporized or atomized liquid as an aerosol.
  • the liquid reservoir 34 comprises a body 1 10 forming a hollow tube surrounding a central passage 32 connecting ports for attaching the liquid reservoir 34 to further portions of the electronic cigarette 10.
  • the liquid reservoir 34 has a nozzle 123 towards the central passage 32.
  • the nozzle 123 is configured to release liquid from the liquid reservoir 34 only when pressure drop along the nozzle 123 exceeds a threshold pressure.
  • a length of the central passage 32 can be changed manually by a user thereby causing compression of the liquid reservoir 34 such that a pressure in the liquid reservoir 34 is increased at least by the threshold pressure.
  • the atomizer/liquid reservoir 14 portion comprises a liquid reservoir 34 and an electrically operable atomizer 26 configured for vaporizing or atomizing liquid supplied from the liquid reservoir 34 and for providing vaporized or atomized liquid as an aerosol.
  • the liquid reservoir 34 comprises a body 1 10 forming a hollow tube surrounding a central passage 32 connecting ports.
  • the liquid reservoir 34 has a nozzle 123 towards the central passage 32.
  • the nozzle 123 is configured to release liquid from the liquid reservoir 34 only when pressure drop along the nozzle 123 exceeds a threshold pressure.
  • a length of the central passage 32 can be changed manually by a user thereby causing compression of the liquid reservoir 34 such that a pressure in the liquid reservoir 34 is increased at least by the threshold pressure.
  • the electronic smoking device 10 comprises one of: (a) a cartomizer comprising a liquid reservoir 34, (b) an atomizer/liquid reservoir portion 14 comprising a liquid reservoir 34, and (c) a liquid reservoir 34 and an electrically operable atomizer 26 configured for vaporizing or atomizing liquid supplied from the liquid reservoir 34 and for providing vaporized or atomized liquid as an aerosol where the atomizer 26 is operable when connected to a battery 18 of the electronic smoking device 10 to atomize liquid stored in the liquid reservoir 34 as an aerosol.
  • the liquid reservoir 34 comprises a body 1 10 forming a hollow tube surrounding a central passage 32 connecting ports 36, 38.
  • the liquid reservoir 34 has a nozzle 123 towards the central passage 32.
  • the nozzle 123 is configured to release liquid from the liquid reservoir 34 only when pressure drop along the nozzle 123 exceeds a threshold pressure.
  • a length of the central passage 32 can be changed manually by a user thereby causing compression of the liquid reservoir 34 such that a pressure in the liquid reservoir 34 is increased at least by the threshold pressure.
  • the electronic smoking device may further comprise a battery portion 12 adapted for accommodation of one or more batteries 18 to which the cartomizer, the atomizer/liquid reservoir portion or the liquid reservoir may be releasably attached.

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  • Catching Or Destruction (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un réservoir de liquide pour un dispositif à fumer électronique. Le réservoir de liquide (34) comprend un corps (110) formant un tube creux entourant un passage central (32) reliant un orifice d'inhalation d'air (36) à un autre orifice pour fixer le réservoir de liquide (34) sur une autre partie de la cigarette électronique (10). Le réservoir de liquide (34) comporte en outre une buse (132) vers le passage central (32), la buse (132) étant configurée pour libérer un liquide du réservoir (34) uniquement lorsqu'une chute de pression dans la buse (132) dépasse une pression seuil. Un utilisateur peut produire la chute de pression par aspiration au niveau de l'orifice d'inhalation d'air (36) et/ou par changement manuel d'une longueur du passage central (32), provoquant ainsi la compression du réservoir de liquide (34).
PCT/EP2016/076049 2015-10-28 2016-10-28 Dispositif à fumer électronique, cartomiseur et réservoir de liquide WO2017072284A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680062841.2A CN108289506B (zh) 2015-10-28 2016-10-28 电子吸烟装置、雾化烟弹及液体储存器
US15/770,734 US20180317551A1 (en) 2015-10-28 2016-10-28 Electronic smoking device, cartomizer and liquid reservoir

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15191933.9A EP3162227B1 (fr) 2015-10-28 2015-10-28 Dispositif à fumer électronique, atomiseur et réservoir de liquide
EP15191933.9 2015-10-28

Publications (1)

Publication Number Publication Date
WO2017072284A1 true WO2017072284A1 (fr) 2017-05-04

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Application Number Title Priority Date Filing Date
PCT/EP2016/076049 WO2017072284A1 (fr) 2015-10-28 2016-10-28 Dispositif à fumer électronique, cartomiseur et réservoir de liquide

Country Status (4)

Country Link
US (1) US20180317551A1 (fr)
EP (1) EP3162227B1 (fr)
CN (1) CN108289506B (fr)
WO (1) WO2017072284A1 (fr)

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US12053024B2 (en) 2018-11-05 2024-08-06 Juul Labs, Inc. Cartridges for vaporizer devices
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US20180317551A1 (en) 2018-11-08
EP3162227A1 (fr) 2017-05-03
EP3162227B1 (fr) 2023-07-12
CN108289506B (zh) 2022-02-18

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