WO2016073709A1 - Dispositif de vapotage électronique - Google Patents

Dispositif de vapotage électronique Download PDF

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Publication number
WO2016073709A1
WO2016073709A1 PCT/US2015/059223 US2015059223W WO2016073709A1 WO 2016073709 A1 WO2016073709 A1 WO 2016073709A1 US 2015059223 W US2015059223 W US 2015059223W WO 2016073709 A1 WO2016073709 A1 WO 2016073709A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
axis
inner tube
flow constriction
vaping device
Prior art date
Application number
PCT/US2015/059223
Other languages
English (en)
Inventor
Ali A. Rostami
Gerd Kobal
Nicolas Castro
Original Assignee
Altria Client Services Llc
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 Altria Client Services Llc filed Critical Altria Client Services Llc
Priority to EP15856534.1A priority Critical patent/EP3214960A4/fr
Priority to CN201580057065.2A priority patent/CN107072293A/zh
Priority to EA201790981A priority patent/EA201790981A1/ru
Publication of WO2016073709A1 publication Critical patent/WO2016073709A1/fr
Priority to IL251557A priority patent/IL251557A0/en

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
    • A24F40/42—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

  • the present disclosure relates to an electronic vaping device and a method of forming an electronic vaping device that produces a vapor having two distinct particle size distributions.
  • An electronic vaping device includes a heater element, which vaporizes a pre-vapor formulation to produce a vapor.
  • the heater element may include a resistive heater coil, with a wick extending there through.
  • a cartridge of an electronic vaping device includes an outer tube extending in a longitudinal direction, an inner tube within the outer tube, the inner tube including a flow constriction along a portion of a length of the inner tube, a reservoir containing a pre-vapor formulation, a wick in communication with the reservoir, and a heater in communication with the wick.
  • the heater is configured to heat the pre-vapor formulation to a temperature sufficient to form a vapor.
  • the flow constriction is configured to reduce a temperature of the vapor, and the flow constriction positioned about 1 mm to about 5 mm from the heater.
  • the flow constriction comprises an insert friction fit in the inner tube.
  • the insert is formed of at least one of a metal, an alloy, a plastic, and a thermoplastic.
  • the material is at least one of polypropylene, polyetheretherketone (PEEK), ceramic, fiberglass, and polyethylene.
  • the cartridge also includes a mouth-end insert including four outlets. Each of the four outlets is at an end of an off-axis passage and each off-axis passage extending generally perpendicularly to adjacent off-axis passages.
  • the inner tube has an inner diameter ranging from about 3 mm to about 4 mm.
  • the flow constriction has an inner diameter ranging from about 1 mm to about 2.5 mm.
  • the flow constriction has a length ranging from about 3 mm to about 8 mm.
  • a cartridge of an electronic vaping device includes an outer tube extending in a longitudinal direction, an inner tube within the outer tube, a reservoir comprising a pre-vapor formulation, a wick in communication with the reservoir, a heater in communication with the wick, the heater configured to heat the pre-vapor formulation, and a mouth-end insert.
  • the mouth-end insert includes a first outlet at an end of a first off-axis passage, and a second outlet at an end of a second off-axis passage.
  • the first off-axis passage and the second off-axis passage each have a central axis extending from an inlet to the outlet, and the first off-axis passage and the second off-axis passage extend tangentially to a circumference surrounding a central, longitudinally extending axis of the electronic vaping device.
  • the mouth-end insert includes four outlets, each of the four outlets being at an end of an off- axis passage.
  • a cartridge of an electronic vaping device includes an outer tube extending in a longitudinal direction, an inner tube within the outer tube, the inner tube including a flow constriction along a portion of a length of the inner tube, a reservoir comprising a pre-vapor formulation, a wick in communication with the reservoir, a heater in communication with the wick, the heater configured to heat the pre-vapor formulation to form a vapor, and a mouth-end insert.
  • the mouth-end insert includes four outlets. Each of the four outlets is at an end of one of four off-axis passages.
  • the four off-axis passages each have a central axis extending from an inlet to the outlet, and the four off-axis passages each extend tangentially to a circumference surrounding a central, longitudinally extending axis of the electronic vaping device.
  • the flow constriction is between the mouth-end insert and the heater.
  • the flow constriction is an insert friction fit in the inner tube.
  • the insert is formed of at least one of a metal, an alloy, a plastic, and a thermoplastic.
  • the material is at least one of polypropylene, polyetheretherketone (PEEK), ceramic, fiberglass, and polyethylene.
  • PEEK polyetheretherketone
  • the flow constriction is about 1 mm to about 5 mm from the heater.
  • the flow constriction has an inner diameter ranging from about 1 mm to about 2.5 mm.
  • the flow constriction has a length ranging from about 3 mm to about 8 mm.
  • Figure 1 is a top planar view of an electronic vaping device according to at least one example embodiment.
  • Figure 2 is a side, cross-sectional view of at least one example embodiment of an electronic vaping device.
  • Figure 3 is a bottom view of a mouth-end insert according to at least one example embodiment.
  • Figure 4 is a top view of a mouth-end insert according to at least one example embodiment.
  • Figure 5 is a side, cross-sectional view of at least one example embodiment of an electrical vaping device as described herein.
  • Figure 6 is a truncated side, cross-sectional view of a first section of an electrical vaping device according to at least one example embodiment.
  • Figure 7 is a perspective view of an inner tube (chimney) according to at least one example embodiment.
  • Figure 8 is a perspective view of an inner tube (chimney) according to at least one example embodiment.
  • Figure 9 is a perspective view of a bottom of a mouth-end insert according to at least one example embodiment.
  • first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers, and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of example embodiments.
  • spatially relative terms e.g., "beneath,” “below,” “lower,” “above,” “upper,” and the like
  • the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the term “below” may encompass both an orientation of above and below.
  • the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
  • Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of example embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/ or tolerances, are to be expected. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
  • At least one example embodiment is related to an electronic vaping device, which may include at least one of mouth-end insert and a flow constriction.
  • the flow constriction may be between a heater and the mouth-end insert.
  • the mouth-end insert may include two or more holes that are rotationally and radially angled so as to distribute vapor in a diverging and swirling pattern as the vapor exits the electronic vaping device.
  • the diverging and swirling pattern reduces vapor temperature before exiting the electronic vaping device.
  • the flow constriction downstream of the heater may reduce vapor temperature before exiting the electronic vaping device.
  • the electronic vaping device produces a vapor upon heating a pre-vapor formulation.
  • the pre-vapor formulation may be a material or combination of materials that may be transformed into a vapor.
  • the pre-vapor formulation may be a liquid, solid and/or gel formulation including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and/ or vapor formers, such as glycerin and propylene glycol.
  • Figure 1 is a top planar view of an electronic vaping device according to at least one example embodiment.
  • Figure 2 is a side, cross- sectional view of an electronic vaping device according to at least one example embodiment.
  • the electronic vaping device 60 comprises a cartridge (or first section) 70 and a fixture (or second section) 72, which are coupled together at a threaded joint 74 or by other connector or mechanism such as a snug-fit, snap-fit, detent, clamp and/or clasp.
  • the first section 70 may house a mouth-end insert 20, a heater 319, a flexible, filamentary wick 328, and a reservoir 314.
  • the second section 72 may house a power supply 12, a control circuit 1 1, and optionally a puff sensor 16.
  • the first section 70 and the second section 72 include an outer housing 22 extending in a longitudinal direction along a length of the electronic vaping device 60.
  • the electronic vaping device 60 may be disposable and includes only one section (not shown).
  • the first section 70 may include a refillable reservoir 314 or the first section 70 may be disposable and the second section 72 may include a rechargeable battery.
  • the electronic vaping device 60 includes a heater 319 and a filamentary wick 328.
  • the first section 70 includes the outer housing 22 extending in a longitudinal direction and an inner tube (or chimney) 362 coaxially positioned within the outer housing 22.
  • a nose portion 361 of an upstream gasket (or seal) 320 is fitted into a first end portion 365 of the inner tube 362, such that an outer perimeter 367 of the gasket 320 provides a liquid-tight seal with an interior surface 397 of the outer housing 22.
  • the gasket 320 also includes a central, longitudinal air passage 315, which opens into an interior of the inner tube 362 that defines a central channel 321.
  • a transverse channel 333 at a portion of the gasket 320 intersects and communicates with the central, longitudinal air passage 315 of the gasket 320.
  • This channel 333 assures communication between the central, longitudinal air passage 315 and a space 335 defined between the gasket 320 and a threaded connection 74.
  • a nose portion 393 of a second gasket 310 is fitted into a second end portion 381 of the inner tube 362.
  • An outer perimeter 382 of the second gasket 310 provides a seal with an interior surface 397 of the outer housing 22.
  • the second gasket 310 includes a central channel 384 disposed between the central passage 321 of the inner tube 362 and the mouth-end insert 20.
  • the reservoir 314 is contained in an annulus between the inner tube 362 and the outer housing 22 and between the first gasket 320 and the second gasket 310.
  • the reservoir 314 at least partially surrounds the central air passage 321.
  • the reservoir 314 comprises a pre-vapor formulation and optionally a storage medium (not shown) configured to store the pre- vapor formulation therein.
  • the heater 319 extends through the central air passage 321 of the inner tube 362.
  • the heater 319 is in contact with the filamentary wick 328, which extends between opposing sections of the reservoir 314 so as to deliver the pre-vapor formulation from the reservoir 314 to the heater 319.
  • the electronic vaping device 60 may include at least one air inlet 440 arranged at the threaded joint 74 and/or between the threaded joint 74 and the heater 319.
  • the power supply 12 may include a battery arranged in the electronic vaping device 60.
  • the power supply 12 is configured to apply voltage across the heater 319 associated with the filamentary wick 328.
  • the heater 319 vaporizes the pre- vapor formulation according to a power cycle of a desired (or, alternatively a predetermined) time period, such as a 2 to 10 second period of time.
  • the battery may be disposable or rechargeable.
  • the electronic vaping device 60 may include the control circuit 1 1 , which may be on a printed circuit board.
  • the control circuit 1 1 may also include a heater activation light 27 that is configured to glow when the heater 319 is activated.
  • An end cap 45 may be positioned at an end or along the housing 22 of the electronic vaping device 60.
  • the outer housing 22 of the electronic vaping device 60 may be formed of any suitable material or combination of materials.
  • the outer housing 22 may be generally cylindrical and may be formed at least partially of metal. Although the housing 22 is described herein as cylindrical, other forms and shapes are contemplated.
  • a mouth-end insert 20 includes two or more, for example four outlets (holes) 21, that are rotationally and radially angled about a circumference of a downstream face of the mouth-end insert 20. As vapor exits the electronic vaping device 60 through the mouth-end insert 20, the vapor passes through the four outlets 21 so that the vapor expands outwardly when in use.
  • Each of the outlets may be located at an end off a corresponding off-axis passage 23 that is angled with respect to the longitudinal axis of the electronic vaping device 60. Moreover, each off- axis passage 23 extends generally perpendicular to each adjacent off-axis passage 23.
  • the outlets 21 are substantially uniformly distributed about the perimeter of mouth-end insert 20 so as to substantially uniformly distribute vapor during vaping and create a greater perception of fullness in the mouth.
  • the vapor enters the mouth and moves in different directions so as to provide a full mouth feel.
  • the off-axis passages 23 are angled at about 5° to about 60° with respect to the central, longitudinal axis of the outer housing 22 so as to more completely distribute vapor during vaping and to remove droplets. In at least one example embodiment, there are four off-axis passages 23, each at an angle of about 40° to about 50° with respect to the central, longitudinal axis of the outer housing 22, or about 40° to about 45°, or about 42°.
  • each of the off-axis passages 23, each inlet 3, and each outlet 21 has a diameter ranging from about 0.015 inch to about 0.090 inch (e.g., about 0.020 inch to about 0.040 inch or about 0.028 inch to about 0.038 inch).
  • the size of the off-axis passages 23 and outlets 21 and the number of off-axis passages 23 and outlets 21 may be selected to adjust the resistance to draw (RTD) of the electronic vaping article 60, if desired.
  • the mouth-end insert 20 may be integrally affixed within the outer housing 22 of the first section 70.
  • the mouth-end insert 20 may be formed of a polymer, such as low-density polyethylene, high-density polyethylene, polypropylene, polyvinylchloride, polyetheretherketone (PEEK), and/or combinations of polymers.
  • the mouth-end insert 20 may also be colored if desired.
  • the mouth-end insert 20 disperses and changes the direction of the vapor as it is drawn from the electronic vaping device 60 so as to provide a fuller mouth feel. As vapor is formed, it passes through the central channel 321 in the inner tube 362 and through the central channel 384 in the second gasket 310.
  • the inner tube 362 has an inner diameter ranging from about 3 mm to about 4 mm, or about 3.5 mm.
  • Figure 3 is a bottom view of a mouth-end insert according to at least one example embodiment.
  • Figure 4 is a top view of a mouth-end insert according to at least one example embodiment.
  • each off-axis passage 23 has a central axis extending from an inlet 3 to the outlet 21.
  • Each off-axis passage extends tangentially with respect to a concentric arc or a circumference "C" about a longitudinally extending, central axis of the mouth-end insert, which may coincide with a central, longitudinal axis of the electronic vaping device 60.
  • the off-axis passages 23 are both rotationally and radially positioned about the mouth-end insert 20 as shown, and the passages 23 do not intersect the longitudinally extending, central axis.
  • the electronic vaping device 60 may also include a flow constriction 445 positioned between the heater 319 the second gasket 310 within the inner tube 362.
  • the flow constriction 445 may be a separate insert that is friction fit in the inner tube 362.
  • the inner diameter may be decreased at a portion of the inner tube 362 into which the flow constriction 445 is inserted.
  • the flow constriction 445 and/or the inner tube 362 may be formed of any suitable material or combination of materials.
  • suitable materials include metals, alloys, plastics or composite materials containing one or more of those materials, or thermoplastics that are suitable for food or pharmaceutical applications, for example polypropylene, polyetheretherketone (PEEK), ceramic, fiberglass, and polyethylene.
  • PEEK polyetheretherketone
  • the material is light and non- brittle.
  • the flow constriction 445 when included, is about 3 mm to about 8 mm in length, or about 3 mm to about 7 mm (e.g., about 4 mm to about 6 mm).
  • the flow constriction 445 may be positioned about 1 mm to about 5 mm from the heater (e.g., about 1 mm to about 3 mm or about 2 mm to about 4 mm).
  • the flow constriction 445 may have an inner diameter of about 1 mm to about 2.5 mm, or about 2 mm.
  • the inner diameter of the inner tube 362 adjacent the flow constriction 445 and along the remaining length of the inner tube 362 not including the flow constriction 445 may range from about 3 mm to about 4 mm, or about 3.5 mm.
  • the flow constriction 445 is about 1 mm to about 5 mm from the heater 319 (e.g., about 1.5 mm to about 4.5 mm, about 2 mm to about 4 mm, or about 2.5 mm to about 3.5 mm).
  • Figure 7 is a perspective view of an inner tube for use in the electronic vaping device 60 of Figure 2 according to at least one example embodiment.
  • the inner tube 362 may have a same diameter along an outer surface.
  • Figure 3 is a bottom view of a mouth-end insert according to at least one example embodiment.
  • Figure 4 is a top view of a mouth-end insert according to at least one example embodiment.
  • each passage 23 there are four off-axis passages 23, which are oriented orthogonally to one another so as to provide a substantially uniform distribution of vapor.
  • its inlet 3 and its outlet 21 are mutually spaced along a tangent of a concentric arc "C" and the passages 23 are equally spaced about the arc "C" orthogonal or 90° from one another.
  • the mouth-end insert may include three holes instead of four, and the same relationships would apply: for each passage 23, the inlet 3 and outlet 21 would be mutually spaced along a tangent along a concentric arc "C" and the passages 23 would be equally spaced about the arc "C", for example about 120° from one another.
  • an interior surface 2 of the mouth-end insert 20 is generally dome-shaped.
  • the off-axis passages 23 are arranged and include interior surfaces 2, such that droplets of unvaporized pre-vapor formulation, if any, that may be entrained in the vapor impact the interior surfaces 2 of the mouth-end insert 20. As a result, such droplets are substantially removed or broken apart so as to enhance the vapor.
  • Figure 5 is a side, cross-sectional view of at least one example embodiment of an electrical vaping device as described herein.
  • the electronic vaping device 60 is generally the same as the electronic vaping device of Figure 2, except that the flow constriction 445 is integrally formed with the inner tube 362, such that the inner tube 362 has contoured walls, which cause the central air channel 321 to have a reduced diameter downstream of the heater 319.
  • Figure 6 is a truncated side, cross-sectional view of a first section of an electrical vaping device according to at least one example embodiment.
  • the reservoir 314 has an increased size due to the narrowed diameter of the inner tube 362 along the flow constriction 445, which allows for a larger volume of pre-vapor formulation to be contained in the electronic vaping device 60.
  • Figure 8 is a perspective view of an inner tube (chimney) according to at least one example embodiment.
  • the inner tube 362 can include a narrowed portion that acts as the flow constriction 445.
  • the electronic vaping device 60 may include only the mouth-end insert 20, as described herein, or only the flow constriction 445.
  • both the mouth-end insert 20, as described herein, and the flow constriction 445 are effective to reduce the temperature of vapor before exiting the electronic vaping device 60 when included individually in the electronic vaping device 60. Moreover, when used in combination, the mouth-end insert 20 and the flow constriction 445 reduce the temperature of the vapor even more than when only the mouth-end insert 20 or only the flow constriction 445 is included in the electronic vaping device 60.

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  • Catching Or Destruction (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

La présente invention concerne un dispositif de vapotage électronique comprend un tube externe s'étendant dans une direction longitudinale, un tube interne à l'intérieur du tube externe, un réservoir comprenant une formulation de pré-vapeur, une mèche en communication avec le réservoir, et un dispositif de chauffage en communication avec la mèche. Le dispositif de vapotage électronique peut comprendre en outre au moins l'un d'un insert d'extrémité buccale comprenant quatre sorties et un étranglement d'écoulement dans le tube interne. Chaque sortie est à une extrémité d'un passage hors axe qui s'étend d'une entrée à la sortie. Chaque passage hors axe s'étend de façon tangentielle à une circonférence entourant un axe central s'étendant longitudinalement du dispositif de vapotage électronique.
PCT/US2015/059223 2014-11-05 2015-11-05 Dispositif de vapotage électronique WO2016073709A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15856534.1A EP3214960A4 (fr) 2014-11-05 2015-11-05 Dispositif de vapotage électronique
CN201580057065.2A CN107072293A (zh) 2014-11-05 2015-11-05 电子烟装置
EA201790981A EA201790981A1 (ru) 2014-11-05 2015-11-05 Электронное вейпинговое устройство
IL251557A IL251557A0 (en) 2014-11-05 2017-04-04 Electronic inhaler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462075417P 2014-11-05 2014-11-05
US62/075,417 2014-11-05

Publications (1)

Publication Number Publication Date
WO2016073709A1 true WO2016073709A1 (fr) 2016-05-12

Family

ID=55851220

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/059223 WO2016073709A1 (fr) 2014-11-05 2015-11-05 Dispositif de vapotage électronique

Country Status (6)

Country Link
US (1) US20160120228A1 (fr)
EP (1) EP3214960A4 (fr)
CN (1) CN107072293A (fr)
EA (1) EA201790981A1 (fr)
IL (1) IL251557A0 (fr)
WO (1) WO2016073709A1 (fr)

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EP3214960A4 (fr) 2018-10-10
EP3214960A1 (fr) 2017-09-13
EA201790981A1 (ru) 2017-08-31
IL251557A0 (en) 2017-05-29
US20160120228A1 (en) 2016-05-05

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