EP4110115A1 - Capsule et joints d'étanchéité pour une cigarette électronique - Google Patents

Capsule et joints d'étanchéité pour une cigarette électronique

Info

Publication number
EP4110115A1
EP4110115A1 EP21709903.5A EP21709903A EP4110115A1 EP 4110115 A1 EP4110115 A1 EP 4110115A1 EP 21709903 A EP21709903 A EP 21709903A EP 4110115 A1 EP4110115 A1 EP 4110115A1
Authority
EP
European Patent Office
Prior art keywords
capsule
housing
fluid transfer
pair
transfer element
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
EP21709903.5A
Other languages
German (de)
English (en)
Inventor
Kentaro MATSUDA
Peter LOVEDAY
Manabu Yamada
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.)
JT International SA
Original Assignee
JT International SA
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 JT International SA filed Critical JT International SA
Publication of EP4110115A1 publication Critical patent/EP4110115A1/fr
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
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • 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
    • 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
    • A24F40/44—Wicks

Definitions

  • the present invention relates to personal vaporizing devices, such as electronic cigarettes.
  • the invention relates to capsules having seals, the capsules to be used with an electronic cigarette.
  • Electronic cigarettes are an alternative to conventional cigarettes. Instead of generating a combustion smoke, they vaporize a liquid, which can be inhaled by a user.
  • the liquid typically comprises an aerosol-forming substance, such as glycerin or propylene glycol that creates the vapor.
  • Other common substances in the liquid are nicotine and various flavorings.
  • the electronic cigarette is a hand-held inhaler system, comprising a mouthpiece section, a liquid store, a power supply unit. Vaporization is achieved by a vaporizer or heater unit which typically comprises a heating element in the form of a heating coil and a fluid transfer element. The vaporization occurs when as the heater heats up the liquid in the wick until the liquid is transformed into vapor.
  • the electronic cigarette may comprise a chamber in the mouthpiece section, which is configured to receive disposable consumables in the form of capsules. Capsules comprising the liquid store and the vaporizer are often referred to as “cartomizers”.
  • Conventional cigarette smoke comprises nicotine as well as a multitude of other chemical compounds generated as the products of partial combustion and/or pyrolysis of the plant material.
  • Electronic cigarettes deliver primarily an aerosolized version of an initial starting e-liquid composition comprising nicotine and various food safe substances such as propylene glycol and glycerine, etc., but are also efficient in delivering a desired Nicotine dose to the user.
  • the aerosol generated by an electronic cigarette is generally referred to as a vapor.
  • liquid leaking from the liquid store may travel to the power supply, or other electronics, and could cause the electrical circuitry to short out. This is dangerous and could potentially lead to injury of a user.
  • a capsule for an electronic cigarette having a first end configured to engage with an electronic cigarette device and a second end arranged as a mouthpiece portion having a vapour outlet.
  • the capsule comprises a liquid store configured to contain a liquid to be vaporized and a vaporizing housing arranged to house a heating element and a fluid transfer element, wherein the fluid transfer element is arranged to deliver liquid from the liquid store to the heating element, the heating element being configured to vaporize the received liquid and generate a vapor.
  • the capsule further comprises a main vapor flow channel extending between the vaporizing housing and the mouthpiece to allow the generated vapor to flow from the vaporizing housing to the mouthpiece.
  • the capsule further comprises an airflow passageway extending between the first end and the vaporizing housing.
  • the vaporizer housing comprises at least one aperture located within a sidewall of the vaporizer housing, the aperture forming part of the airflow passageway.
  • the airflow passageway allows air drawn from outside of the capsule to flow into the vaporizing housing.
  • This configuration provides an air entry point, in the form of the at least one aperture, which is located in a side portion of the vaporizer housing such that air can flow directly into an internal cavity of the vaporizer housing and to the fluid transfer element.
  • the aperture is positioned at distance above a lower rim of the vaporizing housing at the first end of the capsule.
  • the aperture is also positioned at a distance below an upper rim of the vaporizing housing at the second end of the capsule.
  • the vaporizer housing comprises a pair of apertures positioned at opposite sidewalls of the vaporizer housing.
  • the capsule may further comprise a first seal comprising a pair of shoulder portions.
  • the vaporizer housing may comprise a pair of cut-outs.
  • the pair of shoulder portions and the pair of cutouts may be configured to cooperate with each other such that the fluid transfer element is held between the pair of shoulder portions and the pair of cutouts.
  • the seal and the vaporizer housing may therefore be considered as being in cooperation with each other such that the fluid transfer element is held between the seal and the vaporizer housing.
  • the fluid transfer element is arranged to be compressed between the pair of shoulder portions and the pair of cutouts. This may help apply pressure to the fluid transfer element.
  • the fluid transfer element is therefore tightly held between the seal and the vaporizer housing, helping prevent fluid from leaking from the fluid transfer element into the capsule.
  • the seal is able to apply a sufficient compressive force to the fluid transfer element when the fluid transfer element is held between the pair of shoulder portions and the pair of cutouts, helping prevent leakage from around the seal.
  • the fluid transfer element may extend beyond either the first shoulder portion, second shoulder portion, or both shoulder portions.
  • the fluid transfer element is generally held centrally between the first and second shoulder portions. In this case, there will be a substantially equal extension of the fluid transfer portion beyond both the first and second shoulder portions.
  • the fluid transfer element may be positioned off-center between the first and second shoulder portions such that an extension of the fluid transfer element beyond one of the shoulder portions is greater than an extension of the fluid transfer element beyond the other shoulder portion.
  • the fluid transfer element is arranged to be compressed in a radial direction of the fluid transfer element between the pair of shoulder portions and the pair of cutouts.
  • the tight fit achieved by having surfaces of both the shoulder portions and cutouts which cooperate with the ends of the fluid transfer element improves the ability of the seal to apply a suitable pressure to the fluid transfer element.
  • Each shoulder portion may comprise a substantially curved surface.
  • Each curved surface preferably has a curvature which substantially corresponds to a curvature of an external surface of the fluid transfer element. Having curved surfaces that substantially correspond to each other helps ensure a close fit between two neighboring surfaces when the capsule is constructed. This is important for preventing leakage because any gaps that are formed between or exist between components create a potential pathway for liquid to travel along and leak from the capsule.
  • the fluid transfer element may be substantially U-shaped, allowing for a tight, or snug, fit between the vaporizer housing and the seal in order to further reduce the chance of leakage.
  • the capsule further comprises a pair of posts arranged to provide an electrical connection between the main body and the capsule.
  • An interface may be formed between the vaporizer housing and the pair of posts.
  • the heating element may comprise first and second ends.
  • the first and second ends are located at the interface between the vaporizer housing and the pair of posts.
  • the first and second ends of the heating elements may be positioned between the vaporizer housing and the pair of posts.
  • the first and second ends of the heating element are held between the vaporizer housing and the pair of posts at the interface between the vaporizer housing and the pair of posts.
  • the first and second ends of the heating element may be compressed between the vaporizer housing and the pair of posts. at the interface.
  • the first and second ends of the heating element may form lead wires.
  • the lead wires may be attached to a heating wire of the heating element.
  • the first and second ends of the heating element, e.g. lead wires may be considered to be clamped, or squeezed, between the vaporizer housing and the pair of posts.
  • this clamping arrangement helps ensure that the heating element is held firmly and securely in place within the capsule.
  • the first and second ends of the heating element are prevented from coming in to contact with electrical components present in the electronic cigarette device, when the capsule is connected to the electronic cigarette device, reducing the likelihood of any liquid which may be present on the heating element causing potential short circuits.
  • the capsule may further comprise a first holder arranged to retain the vaporizer housing.
  • the first holder may therefore be considered as receiving the vaporizer housing, and may be configured to act as a support structure for the vaporizer housing.
  • Providing a support structure for the vaporizing housing advantageously helps ensure that the vaporizing housing is held firmly and in its correct position within the capsule.
  • the capsule comprises a second holder configured to receive the first holder.
  • An interface may be formed between the first and second holders.
  • the second holder may comprise at least one airflow inlet arranged to allow intake air to flow into the vaporizing housing.
  • the airflow inlet forms part of the airflow passage way.. Providing an airflow passageway which extends into the vaporizer chamber helps ensures that intake air is delivered to the appropriate part of the capsule i.e. the vaporizer chamber.
  • an electronic cigarette comprising a main body and a capsule wherein the main body comprises a power supply unit, electrical circuitry, and a capsule seating configured to connect with the capsule.
  • the capsule comprises a liquid store configured to contain a liquid to be vaporized and a vaporizing housing arranged to house a heating element and a fluid transfer element, wherein the fluid transfer element is arranged to deliver liquid from the liquid store to the heating element, the heating element being configured to vaporize the received liquid and generate a vapor.
  • the capsule also comprises a main vapor flow channel extending between the vaporizing housing and the mouthpiece to allow the generated vapor to flow from the vaporizing housing to the mouthpiece.
  • the capsule further comprises an airflow passageway extending between the first end and the vaporizing housing.
  • the vaporizer housing comprises at least one aperture located within a sidewall of the vaporizer housing, the aperture forming part of the airflow passageway.
  • the electronic cigarette may be configured to connect with a capsule according to any of the previously described capsules.
  • Figure 1A is a schematic perspective view of an electronic cigarette
  • Figure 1B is a schematic perspective side view of the electronic cigarette of Figure 1A;
  • Figure 1C is a schematic cross-sectional view of the electronic cigarette of Figures 1A and 1B;
  • Figure 2A is a schematic perspective view of the electronic cigarette in Figures 1A and 1B, wherein the capsule has been disconnected from the electronic cigarette;
  • Figure 2B is a schematic perspective view of a capsule seating
  • Figure 3A is a schematic view of a capsule
  • Figure 3B is a schematic side view of the capsule of Figure 3A;
  • Figure 4 is an exploded schematic view of a capsule
  • Figure 5 is an exploded schematic view of a capsule
  • Figure 6 is a schematic cross-sectional view of Figure 5 in an assembled state
  • Figure 7 is a schematic sideways cross-sectional view of Figure 5 in an assembled state
  • Figure 8 is a schematic cross-sectional view of a capsule
  • Figure 9A is a bottom-up view of a part of a capsule
  • Figure 9B is a bottom-up view of another part of a capsule; and Figure 9C is a bottom-up view of another part of a capsule.
  • an aerosol for smoking may refer to an aerosol with particle sizes of 0.5 - 7 microns.
  • the particle size may be less than 10 or 7 microns.
  • the electronic cigarette may be portable.
  • an electronic cigarette 2 for vaporizing a liquid L is illustrated.
  • the electronic cigarette 2 can be used as a substitute for a conventional cigarette.
  • the electronic cigarette 2 has a main body 4 comprising a power supply unit 6, electrical circuitry 8 and a capsule seating 12.
  • the capsule seating 12 is configured to receive removable capsules 16 comprising a vaporizing liquid L
  • the liquid L may comprise an aerosol forming substance such as propylene glycol and/or glycerol and may contain other substances such as nicotine and acids.
  • the liquid L may also comprise flavorings such as e.g. tobacco, menthol or fruit flavor.
  • the capsule seating 12 is preferably in the form of a cavity configured to receive the capsule 16.
  • the capsule seating 12 is provided with a connection portion 21 configured to hold the capsule 16 firmly to the capsule seating 12.
  • the connection portion 21 could for instance be an interference fit, a snap fit, a screw fit, a bayoneted fit or a magnetic fit.
  • the capsule seating 12 further comprises a pair of electrical connectors 14 configured to engage with corresponding power terminals 45 on the capsule 16.
  • the capsule 16 comprises a housing 18, a liquid store 32, a vaporizing unit 34 and power terminals 45.
  • the housing 18 has a mouthpiece portion 20 provided with a vapor outlet 28.
  • the mouthpiece portion 20 may have a tip-shaped form to correspond to the ergonomics of the user’s mouth.
  • another connection portion 22 is located on the opposite side of mouthpiece portion 20, another connection portion 22 is located.
  • the mouthpiece connection portion 22 is configured to connect with the connection portion 21 in the capsule seating 12.
  • the connection portion 22 on the capsule 16 may comprise a metallic plate, configured to magnetically connect to a magnetic surface in the capsule seating 12.
  • the capsule housing 18 may be in a transparent material, whereby the liquid level of the capsule 16 is clearly visible to the user.
  • the housing 18 may be formed in a polymeric or plastic material, such as polyester.
  • the capsule 16 may be assembled from a plurality of different parts.
  • the illustrated embodiment is schematic and it is also possible to combine some of the parts to single units which will be apparent to a person skilled in the art.
  • the present configuration of a plurality of different parts enables an efficient assembly of the capsule 16.
  • the capsule housing 18 may be formed from a top housing 18a and a bottom housing 18b or a base 18b. The parts can be assembled together by a friction fit between the top housing 18a and a bottom housing 18b. Additionally, or alternatively, the top housing 18a and a bottom housing 18b can be joined together by ultrasonic welding. Optionally, as illustrated in the figure, the top housing 18a may comprise the mouthpiece portion 20 as a separate part that is assembled to the top housing 18a of the capsule.
  • the vaporizing chamber 30 is located at the opposite distal end of the capsule 16 to the mouthpiece portion 20 and houses the vaporizing unit 34.
  • a main vapor channel 24 is defined which may have a tubular cross-section.
  • the main vapor channel 24 can be formed from a tube or chimney 24 which extends distally away from the mouthpiece where it may be sealingly connected to the vaporizing chamber 30.
  • the tube or chimney 24 can formed integrally with the top housing. This part can for instance be produced by injection molding or molding. Once the tube or chimney 24 is connected to the vaporizing chamber 30, the main vapor channel is formed.
  • the vaporizing chamber 30 is surrounded by the liquid store 32. It is sealed such that it only receives liquid through a liquid delivery channel 33, receives intake air from an air inlet 35, and delivers vapor through the main vapor channel (via tube or chimney 24). To this effect, the vaporizing unit 34 is accommodated inside a tubular vaporizer housing 40.
  • Liquid may also leak from the liquid store 32 or from the fluid transfer element 38 into the air inlet 35 and out through the capsule 16 and potentially into the capsule seating 12 in which the electrical circuitry 8 is housed. This could potentially cause the electrical circuitry 8 to short circuit.
  • the capsule 16 comprises a sealing assembly 44.
  • the sealing assembly comprises a seal 50, a first holder 60 which may also be referred to as an isolation holder 60, and a second holder 70 which may also be referred to as a heating holder 70.
  • the sealing assembly 44 is configured to surround the vaporizer housing 40 and the vaporizer unit 34, as can be seen in Figure 5.
  • the vaporizer housing 40 has an upper rim 42a and a lower rim 42b, the upper rim 42a being in contact with the seal 50, which may also be referred to as a gasket 50, and the lower rim 42b being in contact with the isolation holder 60.
  • the seal 50 is typically made of a resilient or compressible material, for example silicon, to minimize leakage through the connections.
  • the heating holder 70 is configured to seal around the outer circumference of the tubular vaporizer housing 40, as can be seen in Figure 5.
  • the vaporizing unit 34 comprises a heating element 36 and a fluid transfer element 38.
  • the fluid transfer element 38 is configured to transfer the liquid L by capillary action from the liquid store 32 to the heating element 36.
  • the fluid transfer element 38 can be a fibrous or porous element such as a wick made from twined cotton or silica. Alternatively, the fluid transfer element 38 can be any other suitable porous element.
  • the vaporizing chamber 30 is fluidly connected to the liquid store 32 by the fluid transfer element 38. Hence, the liquid inlet to the vaporization chamber 30 is provided solely through the fluid transfer element 38 and through the passages 33 formed from the porous structures of the fluid transfer element 38.
  • the fluid transfer element 38 has a first end 38a and a second end 38b.
  • the fluid transfer element 38 is provided with a substantially elongated main body portion, and the first and second ends are provided substantially perpendicularly to the main body portion, as shown in Figure 5.
  • the fluid transfer element 38 takes the form of a rectangular “u”-shape.
  • the first and second ends of the fluid transfer element 38 extend in a downward direction, substantially parallel to a longitudinal axis of the capsule 16, while the main body portion of the fluid transfer element 38 extends in a substantially horizontal direction, substantially perpendicular to a longitudinal axis of the capsule 16.
  • the fluid transfer element 38 is arranged with its longitudinal extension perpendicular or traverse to the longitudinal direction of the cartridge 16.
  • the fluid transfer element 38 has a liquid uptake portion 39a located inside the liquid store 32 and a liquid delivery portion 39b in contact with the heating element 36 inside the vaporization chamber 30.
  • the liquid uptake portion 39a corresponds to the first end 38a and the second end 38b of the fluid transfer element 38.
  • the heating element 36 is positioned on the liquid delivery portion 39b of the fluid transfer element 38.
  • the liquid delivery portion 39b corresponds to the center portion of the fluid transfer element 38. That is to say, the delivery portion 39b corresponds to the main body portion of the fluid transfer element 38.
  • the heating element 36 is provided on the outside circumference of the main body portion of the fluid transfer element 38.
  • the vaporizer housing 40 is further provided with a pair of cutouts 48 through which the first and the second ends 38a, 38b of the fluid transfer element 38 are received.
  • the seal 50 is located in the connection between the vaporization chamber 30 and the fluid transfer element 38.
  • the seal 50 has a contact surface S1 that corresponds to the shape of the upper rim 42a of the vaporizer housing 40.
  • the seal 50 is further provided with an aperture 51 through which the vapor can flow from the vaporization chamber 30 to the main vapor flow channel.
  • the seal 50 comprises a pair of radially extending shoulder portions 52, which extend in a direction substantially perpendicular to a longitudinal axis of the electronic cigarette 2.
  • the shoulder portions 52 are generally curved in shape, for example taking the form of an arc or semi-circle as can be seen for example in Figures 5 and 9A, and having an inwardly curving surface 52a, which may be thought of as a concave surface 52a, and an outwardly curving surface 52b, which may be thought of as a convex surface 52b.
  • the concave surface 52a is located below the convex surface 52b such that the shoulder portions may be described as substantially “n”- shaped.
  • the inwardly curved surface 52a of the shoulder portions 52 is shaped to correspond to the shape of the first and second ends 38a, 38b of the fluid transfer element 38.
  • the curvature of the first and second ends of the fluid transfer element 38 substantially corresponds to the curvature of the inwardly curving surface 52a of the shoulder portions 52.
  • Having curved surfaces that substantially corresponds to each other ensures a close fit between the two neighboring surfaces, which in this case are the surface of the fluid transfer element 38 and the concave surface of the shoulder portion 52, when the electronic cigarette 2 is constructed. This is important for preventing leakage, as any gaps or “wiggle room” created through loose fitting parts creates a potential pathway for liquid to travel along and leak from the capsule 16.
  • the shoulder portions 52 are configured to press against, i.e. apply pressure to, the fluid transfer element 38 when the capsule 16 is assembled.
  • the seal 50 is configured to compress the fluid transfer element 38 in the radial direction of the fluid transfer element 38. The tight fit achieved by having complementary adjacent surfaces of the ends of the fluid transfer element 38 and the concave surfaces 52a of the seal 50 improves the ability of the seal 50 to apply a suitable pressure to the fluid transfer element 38.
  • the seal 50 is able to apply a sufficient compressive force to the fluid transfer element 38 when the fluid transfer element 38 is held within the cutouts 48, between the seal 50 and the vaporizer housing 40, helping prevent leakage from around the seal.
  • the fluid transfer element 38 By compressing the fluid transfer element 38, the liquid flow from the liquid store 32 to the vaporization chamber 30 is guided through the fluid transfer element 38. Hence, leakage around the fluid transfer element 38 is prevented.
  • the fluid transfer element 38 When assembled, the fluid transfer element 38 is tightly held between the seal 50 and the vaporizer chamber 40, within the cutouts 48 in the vaporizer housing 40, as shown in Figure 6.
  • the seal 50 and the vaporizer housing 40 cooperate with each other in order to clamp the fluid transfer element 38 between these two components and retain it within the cutouts 48. This configuration helps prevent fluid from leaking from the fluid transfer element 38 into the electronic cigarette 2.
  • the seal 50 comprises a base portion 50c which acts, in combination with the main body of the seal 50, to house components of the capsule such as the vaporizer housing 40.
  • the main body of the seal can therefore be thought of as defining an internal cavity portion.
  • the base portion 50c is also configured to receive, and retain, the holder 60, also known as the isolation holder 60, such that the holder 60 is located within the base portion 50c.
  • the holder 60 is for receiving the vaporizer housing 40, acting as a support for the vaporizer housing 40, as shown in Figure 6. Specifically, the lower rim 42b of the vaporizer housing 40 is received by the holder 60 so that the vaporizer housing 40 is held firmly and in its correct position within the capsule 16.
  • the heating holder 70 is arranged to be connected to the base portion 50c of the seal 50 for example by a push fit or snap fit connection.
  • Both the heating holder 70 and the isolation holder 60 comprise a pair of through holes 62, 72 or apertures 62, 72 as shown in Figures 9B and 9C.
  • These apertures 62, 72 are arranged to receive a pair of posts 80, for example as shown in Figure 8.
  • These posts 80 ensure that the components are connected together and do not come apart from each other. Furthermore, these posts 80 help ensure that the first and second ends 36a, 36b of the heating element are held sufficiently tightly between the isolation holder 60 and the heating holder 70.
  • the posts 80 also act as electrical connectors for the transfer of current between the capsule seating 12 and the capsule 16.
  • the posts 80 are therefore made of any suitable material which is able to transfer current, for example a metal such as copper.
  • the holder 60 is itself received and retained by the heating holder 70, as shown in Figure 6, such that an interface is formed between a surface of the isolation holder 60 and the heating holder 70. This interface also corresponds to an interface formed between the surface of the isolation holder 60 and the posts 80.
  • the heating element has first and second ends 36a, 36b which are held between the isolation holder 60 and the posts 80 at the interface between the isolation holder 60 and the posts 80. The first and second ends 36a, 36b of the heating element are therefore clamped, or squeezed, between the isolation holder 60 and the posts 80. This ensures that the heating element 36 is held firmly in place within the capsule 16.
  • the heating holder 70 comprises a pair of air holes 71, in the form of two through bores passing through the main body of the heating holder 70, arranged to allow air to flow into the vaporizing chamber 30 via the air inlet 35 in the vaporizer unit 34, as shown in Figure 7.
  • the vaporizer housing 40 comprises a pair of air holes 41, in the form of two through bores passing through the main body of the vaporizer housing 40.
  • the pair of air holes 41 extends through the side walls of the vaporizer housing 40, as shown in Figure 5 and 7.
  • the air holes 41 are arranged to allow air to flow into the vaporizing chamber 30.
  • Both pairs of air holes 62, 71 therefore comprise part of the airflow passageway.
  • the capsule therefore comprises an airflow passageway in which air flows along an external side of the vaporizer housing 40 and a main vapor channel 24 in which vapor as generated in vaporizer unit flows along an internal portion of the vaporizer housing 40, as show in Figure 7.
  • the heating element 36 comprises a heating wire 36, which is wound around the fluid transfer element 38 and so takes the form of a heating coil.
  • the heating wire 36 is configured to heat the fluid transfer element 38 by resistive heating.
  • the heating element 36 is not directly connected to the electrodes 80 but is instead indirectly connected to the electrodes 80 via a plurality of lead wires, which act as an intermediate between the heating element 36 and the electrodes 80.
  • the heating element 36 is connected to the lead wires generally near the fluid transfer element 38.
  • the heating element 36 therefore comprises the heating wire 36 (also known as a heating coil) and lead wires, typically two lead wires.
  • the heating wire 36 is generally connected to each lead wire by spot welding or clipper.
  • the lead wires, specifically first and second lead wires, of the heating element may also be referred to as first and second ends of the heating element.
  • the material of the heating wire 36 can be titanium. Titanium has a steep resistance to temperature curve in comparison with e.g. stainless steel or nickel. Hence, the resistance of the heating wire 36 increases relatively rapidly with an increasing coil temperature.
  • other materials such as Stainless steel, Nickel, Chrome or Aluminium or alloys thereof are also possible.
  • the main body 4 is configured via the posts 80 to supply power to the heating element 36 of the capsule and to control the overall operation of the vaporization.
  • the main body 4 can be configured as a compact device in comparison to most prior art electronic cigarettes. Preferably, the device is provided with a dimension that it will fit into the palm of a hand.
  • the electrical circuitry 8 of the main body 4 is configured to operate the electronic cigarette 2 and may comprise a flow sensor 10 or a manual activation switch, a memory 11 and a controller 13.
  • the electrical circuitry 8 may advantageously be grouped onto a main printed circuit board.

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Abstract

L'invention concerne une capsule pour une cigarette électronique. Dans un mode de réalisation, la capsule a une première extrémité conçue pour venir en prise avec un dispositif de cigarette électronique et une seconde extrémité disposée comme partie d'embout buccal ayant une sortie de vapeur, la capsule comprenant en outre : un réservoir de liquide conçu pour contenir un liquide à vaporiser ; un boîtier de vaporisation conçu pour loger un élément chauffant et un élément de transfert de fluide, l'élément de transfert de fluide étant conçu pour distribuer le liquide du réservoir de liquide à l'élément chauffant, l'élément chauffant étant conçu pour vaporiser le liquide reçu et générer une vapeur ; un canal d'écoulement de vapeur principal s'étendant entre le boîtier de vaporisation et l'embout buccal pour permettre à la vapeur générée de s'écouler du boîtier de vaporisation à l'embout buccal ; un passage d'écoulement d'air s'étendant entre la première extrémité et le boîtier de vaporisation ; le boîtier de vaporisateur comprenant au moins une ouverture située à l'intérieur d'une paroi latérale du boîtier de vaporisateur, l'ouverture faisant partie du passage d'écoulement d'air.
EP21709903.5A 2020-02-28 2021-02-25 Capsule et joints d'étanchéité pour une cigarette électronique Pending EP4110115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2020077282 2020-02-28
PCT/EP2021/054769 WO2021170768A1 (fr) 2020-02-28 2021-02-25 Capsule et joints d'étanchéité pour une cigarette électronique

Publications (1)

Publication Number Publication Date
EP4110115A1 true EP4110115A1 (fr) 2023-01-04

Family

ID=74858389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21709903.5A Pending EP4110115A1 (fr) 2020-02-28 2021-02-25 Capsule et joints d'étanchéité pour une cigarette électronique

Country Status (4)

Country Link
US (1) US20230112161A1 (fr)
EP (1) EP4110115A1 (fr)
CN (1) CN115190769A (fr)
WO (1) WO2021170768A1 (fr)

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US20230114975A1 (en) * 2020-02-28 2023-04-13 Jt International Sa Airflow Chimney
WO2023041446A1 (fr) * 2021-09-15 2023-03-23 Nerudia Limited Composant, dispositif et système de distribution d'aérosol

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MX2019006399A (es) * 2016-12-02 2019-09-04 Vmr Products Llc Sistema de cartucho vaporizador.
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