EP3711512A1 - Dispositif de substitution du tabac avec carénage - Google Patents

Dispositif de substitution du tabac avec carénage Download PDF

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Publication number
EP3711512A1
EP3711512A1 EP19020142.6A EP19020142A EP3711512A1 EP 3711512 A1 EP3711512 A1 EP 3711512A1 EP 19020142 A EP19020142 A EP 19020142A EP 3711512 A1 EP3711512 A1 EP 3711512A1
Authority
EP
European Patent Office
Prior art keywords
smoking substitute
shroud
heating element
consumable
substitute device
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.)
Ceased
Application number
EP19020142.6A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Nerudia Ltd
Original Assignee
Nerudia Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nerudia Ltd filed Critical Nerudia Ltd
Priority to EP19020142.6A priority Critical patent/EP3711512A1/fr
Priority to EP20715743.9A priority patent/EP3941277A1/fr
Priority to PCT/EP2020/056863 priority patent/WO2020193229A1/fr
Priority to TW109109144A priority patent/TW202100039A/zh
Publication of EP3711512A1 publication Critical patent/EP3711512A1/fr
Priority to US17/481,889 priority patent/US20220095684A1/en
Ceased legal-status Critical Current

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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
    • 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
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present disclosure relates to the field of smoking tobacco.
  • the present disclosure relates to smoking substitute systems and particularly, although not exclusively, to a heat-not-burn (HNB) smoking substitute system.
  • HNB heat-not-burn
  • the present disclosure relates to a smoking substitute system having a shroud.
  • the smoking of tobacco is generally considered to expose a smoker to potentially harmful substances. It is generally thought that a significant amount of the potentially harmful substances are generated through the heat caused by the burning and/or combustion of the tobacco and the constituents of the burnt tobacco in the tobacco smoke itself.
  • Conventional combustible smoking articles such as cigarettes, typically comprise a cylindrical rod of tobacco comprising shreds of tobacco which is surrounded by a wrapper, and usually also a cylindrical filter axially aligned in an abutting relationship with the wrapped tobacco rod.
  • the filter typically comprises a filtration material which is circumscribed by a plug wrap.
  • the wrapped tobacco rod and the filter are joined together by a wrapped band of tipping paper that circumscribes the entire length of the filter and an adjacent portion of the wrapped tobacco rod.
  • a conventional cigarette of this type is used by lighting the end opposite to the filter, and burning the tobacco rod. The smoker receives mainstream smoke into their mouth by drawing on the mouth end or filter end of the cigarette.
  • Such smoking substitute systems can form part of nicotine replacement therapies aimed at people who wish to stop smoking and overcome a dependence on nicotine.
  • Smoking substitute systems include electronic systems that permit a user to simulate the act of smoking by producing an aerosol (also referred to as a "vapour") that is drawn into the lungs through the mouth (inhaled) and then exhaled.
  • aerosol also referred to as a "vapour”
  • the inhaled aerosol typically bears nicotine and/or flavourings without, or with fewer of, the odour and health risks associated with traditional smoking.
  • smoking substitute systems are intended to provide a substitute for the rituals of smoking, whilst providing the user with a similar experience and satisfaction to those experienced with traditional smoking and with combustible tobacco products.
  • Some smoking substitute systems use smoking substitute articles that are designed to resemble a traditional cigarette and are cylindrical in form with a mouthpiece at one end.
  • HNB heat not burn
  • a typical HNB smoking substitute system may include a device and a consumable.
  • the consumable may include the tobacco material.
  • the device and consumable may be configured to be physically coupled together.
  • heat may be imparted to the tobacco material by a heating element of the device, wherein airflow through the tobacco material causes moisture in the tobacco material to be released as vapour.
  • a vapour may also be formed from a carrier in the tobacco material (this carrier may for example include propylene glycol and/or vegetable glycerine) and additionally volatile compounds released from the tobacco. The released vapour may be entrained in the airflow drawn through the tobacco.
  • the vapour passes through the consumable (entrained in the airflow) from an inlet to a mouthpiece (outlet), the vapour cools and condenses to form an aerosol for inhalation by the user.
  • the aerosol will normally contain the volatile compounds.
  • HNB smoking substitute systems heating as opposed to burning the tobacco material is believed to cause fewer, or smaller quantities, of the more harmful compounds ordinarily produced during smoking. Consequently, the HNB approach may reduce the odour and/or health risks that can arise through the burning, combustion and pyrolytic degradation of tobacco.
  • the present disclosure relates to an aerosol-forming delivery system, e.g. a smoking substitute system such as an HNB system. More specifically, the present disclosure relates to a smoking substitute device having a shroud for thermally insulating or thermally separating a heating element, in particular an isolative, or insulated, shroud, in particular at least partially covering or surrounding a smoking substitute consumable.
  • a smoking substitute device having a shroud for thermally insulating or thermally separating a heating element, in particular an isolative, or insulated, shroud, in particular at least partially covering or surrounding a smoking substitute consumable.
  • a smoking substitute device comprising a main body, a cavity and a heating element, wherein the cavity is arranged in the main body, wherein the heating element is arranged in the interior of the cavity, wherein the smoking substitute device is adapted for receiving a smoking substitute consumable, wherein the heating element is adapted for heating the smoking substitute consumable and wherein the smoking substitute device comprises a shroud at least partially surrounding the cavity, in particularly thermally insulating the heating element (14).
  • a smoking substitute system comprising a smoking substitute device in accordance with the present disclosure and a smoking substitute consumable.
  • a method of using a smoking substitute system comprising inserting a smoking substitute consumable into a smoking substitute device and heating the smoking substitute consumable using a heating element.
  • a smoking substitute system may comprise a smoking substitute device or an aerosol-forming device, which may be a heat-not-burn (HNB) smoking substitute device.
  • An HNB device is a device that is adapted for heating but not combusting the aerosol-forming substrate. This substrate may be made of tobacco material and may comprise additives assisting in the forming of the aerosol by the smoking substitute device.
  • the smoking substitute device may comprise a main body for housing a heating element.
  • the heating element may comprise an elongated, e.g. rod-shaped, tube-shaped or blade-shaped heating element. The heating element may project into or surround a cavity within the main body of the smoking substitute device, which cavity is for receiving a smoking substitute consumable.
  • the smoking substitute device may comprise an electrical power supply, e.g. a (rechargeable) battery for powering the heating element. It may further comprise a control unit to control the supply of power to the heating element.
  • an electrical power supply e.g. a (rechargeable) battery for powering the heating element.
  • It may further comprise a control unit to control the supply of power to the heating element.
  • the heating element may penetrate the smoking substitute consumable in an area of the consumable where the aerosol-forming substrate, e.g. tobacco material, is arranged.
  • the heating element is thus arranged inside of the smoking substitute consumable and in particular inside of the tobacco material.
  • the heating element is heated to a target temperature, preferably in the range above the vaporization temperature of nicotine contained in the tobacco material, but below the temperature where the tobacco material would start to burn or combust.
  • the heating element may be heated to a temperature of above 170°C, the vaporization temperature of nicotine, but below 400° C to avoid burning of the tobacco material in the consumable.
  • the target temperature may not exceed approx. 350°C.
  • isolating shroud insulating shroud
  • isolative shroud shroud
  • the smoking substitute device comprises a shroud.
  • the in particular isolative shroud may be arranged in the vicinity of the heating element and may be arranged for maintaining or keeping heat energy within the smoking substitute device and shielding the heat generated within the smoking substitute device from the outside, e.g. from a user holding the smoking substitute device.
  • the isolative shroud may be arranged to keep heat energy contained within its interior, which in particular may receive the smoking substitute consumable while maintaining a substantially lower outside temperature, e.g. a cooler temperature suitable for contact with skin of a user so as to avoid injury due to heat.
  • the isolative shroud may be embodied as an elongated, substantially cylindrical tube of suitable dimensions for receiving a smoking substitute consumable.
  • a consumable may be inserted into the cavity of the smoking substitute device and in particular into the isolative shroud surrounding the cavity.
  • a heating element may be arranged in a central part of the cavity and the isolative shroud respectively so as to provide a source of heat within the interior volume of the isolative shroud.
  • the heating element may penetrate the smoking substitute consumable in an appropriate area or region to come into contact with tobacco material or another aerosol-forming substrate situated within at least a part of the smoking substitute consumable.
  • the smoking substitute consumable in turn may be surrounded by the isolative shroud.
  • an inserted smoking substitute consumable may be sandwiched between the heating element and the isolative shroud.
  • Heat generated by the heating element and released to the tobacco material thus heats the tobacco material to a desired temperature of operation.
  • the heating element is arranged within the tobacco material.
  • tobacco material is substantially uniformly heated resulting in an outer surface area or peripheral region of the smoking substitute consumable to be heated to the temperature of operation as well.
  • the isolative shroud surrounding at least a part of the smoking substitute consumable prevents heat from exiting the volume contained within the isolative shroud at least partially.
  • the isolative shroud forms a protective barrier, in particular a heat barrier, between the interior of the isolative shroud containing the smoking substitute consumable and the heating element and the outside of the isolative shroud which may relate to an outside of the smoking substitute device with which a user may come into bodily contact with.
  • a protective barrier in particular a heat barrier
  • the shroud may be coated in a thermally reflective substance to reflect heat towards the consumable to encourage internal heating and insulate the outer surface.
  • the shroud may a tubular part into which the cavity for the consumable sits, in use.
  • the shroud may extend at least the full length of the heater rod, may be part of the device, and may include engagement means to releasably engage the cap.
  • the shroud may engage with the cavity, and may include a component (e.g. a hinged arm) that penetrates through the cavity wall for access from the cavity.
  • the shroud may have an aperture for cleaning of the rod heater base. The aperture may be small enough to prevent a finger touching the rod heater. Increased isolation and heat retention may increase battery efficiency and may prevent reaching an outside of the device from going above a desired, in particular safe operating or handling temperature.
  • the heating element may be arranged as a heater rod disposed with the main body and wherein the shroud (38) may enclose at least a portion of the heater rod so as to thermally isolate or insulate the heater rod.
  • the cavity may be adapted for receiving the smoking substitute consumable and the isolative shroud may be at least partially surrounding at least a part of the received smoking substitute consumable.
  • heat contained within aerosol generating material e.g. tobacco material within the smoking substitute consumable, may be maintained inside of the isolative shroud while maintaining cooler surroundings.
  • the heating element may be adapted for penetrating the outer surface of the smoking substitute consumable to get into contact with tobacco material located inside the smoking substitute consumable upon insertion of the smoking substitute consumable into the smoking substitute device, for heating the tobacco material.
  • the tobacco material is thus sandwiched between the heating element and the isolative shroud to provide a volume of preferred heat transmission into the tobacco material while maintaining a cooler surrounding area.
  • the isolative shroud may be thermally insulating the interior of the isolative shroud from the exterior of the isolative shroud.
  • the isolative shroud is thus constituting a thermal barrier within the smoking substitute device, separating a volume of higher temperature in the interior of the isolative shroud from an outside with a reduced temperature.
  • the isolative shroud may be made of a polymer material, in particular may be made of polyether ether ketone (PEEK).
  • PEEK polyether ether ketone
  • a polymer material may be a preferred material for forming an insulating element.
  • PEEK is a linear, semicrystalline, thermoplastic high performance plastic (high performance material) with a very high melting temperature of over 330°C.
  • PEEK has a very high temperature resistance and good chemical resistance.
  • PEEK is resistant to almost all organic and inorganic chemicals, even to hydrolysis up to about 280°C. It has a very high continuous service temperature of up to 260°C and very high strength, very high rigidity and high toughness.
  • PEEK has excellent abrasion resistance and excellent sliding properties as well as a low coefficient of linear thermal expansion.
  • the plastic is flame retardant and self-extinguishing and produces very little smoke in the event of fire.
  • the interior of the isolative shroud may be coated with a thermally reflective coating for reflection of thermal energy towards the smoking substitute consumable.
  • An according heat reflecting coating may further enhance the barrier functionality of the isolative shroud insulating an interior of the shroud from an outside of the shroud.
  • the smoking substitute device may further comprise a second heating element, wherein the second heating element may be arranged between the smoking substitute consumable and the isolative shroud for heating at least a part of the outer surface of the smoking substitute consumable.
  • the smoking substitute consumable may be heat a smoking substitute consumable from both sides, i.e. from within by the first heating element as well as from the outside by the second heating element. Such may contribute to a more uniform heating of the tobacco material within the smoking substitute consumable.
  • the second heating element may form integral part of the isolative shroud, or may be arranged as two separate devices which may be removable separate from each other from the smoking substitute device.
  • the heating element may be a rod-shaped heating element and the length of the isolative shroud may be at least the length of the rod-shaped heating element.
  • the isolative shroud may substantially completely encompass the heating element arranged within its interior, within the cavity respectively.
  • the length of the isolative shroud may thus correspond to the length of the heating element.
  • the isolative shroud may comprise an aperture for allowing access to the interior of the cavity.
  • the aperture may allow access to the inside of the cavity for allowing access to the heating element.
  • the heating element may be cleaned.
  • the heating element may be cleaned by removing access or old tobacco material stuck to the heating element upon removal of the smoking substitute consumable.
  • the aperture may be located distal from an outward facing opening of the cavity.
  • the outward facing opening allows insertion of the smoking substitute consumable into the cavity while the aperture is arranged distal from said opening, e.g. at the base of the cavity close to the emerging heating element.
  • arranging an aperture at the bottom of the cavity allows readily access to the heating element for cleaning purposes.
  • the aperture may be arranged in size such that a user of the smoking substitute device may not come into bodily contact with the heating element, in particular wherein the aperture on the shroud is sized to prevent finger access.
  • the aperture may be sized to accommodate a cleaning element while being too small to allow a user the touching of the heating elements, e.g. with their hands, in particular with a finger.
  • the smoking substitute device may be a heat-not-burn smoking substitute device.
  • the smoking substitute device may be a heat-not-burn smoking substitute device.
  • Fig. 1 shows a view of an exemplary embodiment of a smoking substitute device 10, here exemplarily an HNB device 10.
  • the HNB device 10 comprises a rod-shaped heating element 12, which projects into a cavity 14 within the main body 16 of the device 10.
  • a smoking substitute consumable 20 may be inserted into the cavity 14 of the main body 12 of the device 10 such that the heating rod 12 penetrates an aerosol-forming substrate, e.g. tobacco material in one outer part, e.g. the lower part of the smoking substitute consumable 20, distal from an outward facing opening 42 of cavity 14.
  • Heating of e.g. reconstituted tobacco in the aerosol-forming substrate is effected by powering the heating element 12, with a power source 18, e.g. a rechargeable battery 18 incorporated in the smoking substitute device 10.
  • moisture and volatile compounds e.g. nicotine
  • a humectant are released as a vapour and entrained within an airflow generated by inhalation by the user.
  • Heating of the tobacco by the heating element 12 may be activated by the user pressing an actuator 26, here exemplarily activation switch 26, on a side surface of the main body 16 of the smoking substitute device 10.
  • Display element 28, here exemplarily a number of LEDs, is arranged in the vicinity of the activation switch 26 on the side surface of main body 16.
  • the charging connector 30 may be embodied as a standard USB connector, e.g. mini-USB or micro-USC.
  • the charging connector 30 is embedded as a symmetrical connector, like a USB-C connector.
  • the charging connector 30 may be embodied as a lightning connector.
  • the charging connector 30 may provide a connection for either energy or data or both.
  • FIG. 2 an exemplary embodiment of a smoking substitute device in accordance with the present invention is depicted.
  • Smoking substitute device 10 embodied as a heat-not-burn smoking substitute device, comprises main body 16 with a protruding heating element 12. Part of the main body 16 extends in the area of the heating element 12 thereby forming the cavity 14 for receiving a smoking substitute consumable 20. Smoking substitute consumable 20 is only indicated and about to be inserted into the cavity 14, indicated by the downward arrow in Fig. 2 . Surrounding the cavity 14 is a shroud 38 substantially surrounding the cavity 14.
  • the shroud 38 When the smoking substitute consumable 20 is inserted into the cavity 14, the shroud 38 covers an outer circumferential area of the smoking substitute consumable 20 thereby separating or isolating the outside of the shroud 38 from heat generated within the shroud 38 and in particular within the cavity 14 by heating element 12 for heating of aerosol releasing material within the smoking substitute consumable 20.
  • the isolative shroud is providing a heat barrier between a heated smoking substitute consumable 20 and the outside of the smoking substitute device 10 such that a user of the smoking substitute device 10 may not come in contact with the heated smoking substitute consumable 20 or in case the area of the isolative shroud is indeed touched by the user, receives only a moderate heat not resulting in injury.
  • Shroud 38 comprises aperture 40 which is arranged distal from the outward facing opening 42 of cavity 14 and is thus arranged in the vicinity of heating element 12.
  • the aperture may be used for cleaning heating element 12 e.g. by insertion of a suitable cleaning element into aperture 40 to scrub off excess tobacco material or residue tobacco material from heating element 12.
  • aperture 40 is small enough and distant enough from heating element 12 so that a user may not reach or come in contact with heating element 12 through aperture 40.
  • a control element 26 e.g. a button or activation switch, is provided which can further comprise a display element 28 for display of operation or other information to a user of the smoking substitute device 10.
  • FIG. 3 shows a schematics of an exemplary embodiment of a smoking substitute device in accordance with the present invention.
  • Smoking substitute device 10 comprises a main body 16 or housing and a power source 18, e.g. a rechargeable battery. Further provided is a control unit 32, which may include a microprocessor. Memory 34 is provided for storing e.g. control instructions for control unit 32 or the microprocessor. Memory 34 is preferably provided as non-volatile memory.
  • Smoking substitute device 10 may further comprise a display element 28, which may be embodied as a single or a plurality of LEDs or organic LEDs. The LEDs are possibly adapted for displaying different colours in accordance with instructions from the control unit 32 and memory 34, depicting different modes of operation with different colours of smoking substitute device 10 or generally different information directed to the user operating the smoking substitute device 10.
  • a control element 26 is provided, e.g. an actuator or activation switch, with which the smoking substitute device may be switched on and off, an operation may be initiated and/or a mode of operation may be set.
  • an electrical interface 30 or charging connector 30 is provided, which may be incorporated in the main body 16 and which may include one or more electrical contacts.
  • the electrical interface 30 may be located in, and preferably at the bottom of, an aperture in an end section of the main body 16. Electrical interface 30 may be adapted to be coupled with an external charging station to receive power for charging the power source 18.
  • electrical interface 30 may be embodied as a charging connector 30, which may be a USB or lightning connection.
  • the charging connector 30 is embodied as a USB-C connector, which is an example of a symmetrical connector.
EP19020142.6A 2019-03-22 2019-03-22 Dispositif de substitution du tabac avec carénage Ceased EP3711512A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP19020142.6A EP3711512A1 (fr) 2019-03-22 2019-03-22 Dispositif de substitution du tabac avec carénage
EP20715743.9A EP3941277A1 (fr) 2019-03-22 2020-03-13 Dispositif de substitution pour fumeurs avec enveloppe
PCT/EP2020/056863 WO2020193229A1 (fr) 2019-03-22 2020-03-13 Dispositif de substitution pour fumeurs avec enveloppe
TW109109144A TW202100039A (zh) 2019-03-22 2020-03-19 具有護罩的吸煙替代設備
US17/481,889 US20220095684A1 (en) 2019-03-22 2021-09-22 Smoking Substitute System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19020142.6A EP3711512A1 (fr) 2019-03-22 2019-03-22 Dispositif de substitution du tabac avec carénage

Publications (1)

Publication Number Publication Date
EP3711512A1 true EP3711512A1 (fr) 2020-09-23

Family

ID=65954994

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19020142.6A Ceased EP3711512A1 (fr) 2019-03-22 2019-03-22 Dispositif de substitution du tabac avec carénage
EP20715743.9A Pending EP3941277A1 (fr) 2019-03-22 2020-03-13 Dispositif de substitution pour fumeurs avec enveloppe

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20715743.9A Pending EP3941277A1 (fr) 2019-03-22 2020-03-13 Dispositif de substitution pour fumeurs avec enveloppe

Country Status (3)

Country Link
EP (2) EP3711512A1 (fr)
TW (1) TW202100039A (fr)
WO (1) WO2020193229A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023128490A1 (fr) * 2021-12-30 2023-07-06 Kt&G Corporation Dispositif de génération d'aérosol

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140216485A1 (en) * 2011-09-06 2014-08-07 British American Tobacco (Investments) Limited Insulating
WO2017194763A2 (fr) * 2016-05-13 2017-11-16 British American Tobacco (Investments) Limited Appareil pour le chauffage d'un matériau destiné à être fumé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140216485A1 (en) * 2011-09-06 2014-08-07 British American Tobacco (Investments) Limited Insulating
WO2017194763A2 (fr) * 2016-05-13 2017-11-16 British American Tobacco (Investments) Limited Appareil pour le chauffage d'un matériau destiné à être fumé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023128490A1 (fr) * 2021-12-30 2023-07-06 Kt&G Corporation Dispositif de génération d'aérosol

Also Published As

Publication number Publication date
EP3941277A1 (fr) 2022-01-26
WO2020193229A1 (fr) 2020-10-01
TW202100039A (zh) 2021-01-01

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