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WO2025073794A1 - Dispositif de génération d'aérosol - Google Patents

Dispositif de génération d'aérosol Download PDF

Info

Publication number
WO2025073794A1
WO2025073794A1 PCT/EP2024/077791 EP2024077791W WO2025073794A1 WO 2025073794 A1 WO2025073794 A1 WO 2025073794A1 EP 2024077791 W EP2024077791 W EP 2024077791W WO 2025073794 A1 WO2025073794 A1 WO 2025073794A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol generating
lightguide
chamber
generating device
aerosol
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
PCT/EP2024/077791
Other languages
English (en)
Inventor
Juraj LEHOCKY
Alec WRIGHT
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 WO2025073794A1 publication Critical patent/WO2025073794A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A24F40/46—Shape or structure of electric heating means
    • 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 aerosol generating devices.
  • the aerosol generating device is configured to receive a consumable article to be heated, for example resistively or inductively, to generate an inhalable aerosol.
  • the consumable article may comprise an aerosol precursor material being any one of a liquid, a gel, a solid, and comprising tobacco or not.
  • Aerosol generating devices are an alternative to conventional cigarettes. Instead of generating inhalable smoke by combustion of an aerosol generation material such as tobacco, they generate an aerosol which can be inhaled by a user, heating, without combusting, an aerosol precursor material of an aerosol generating substrate, the aerosol precursor material comprising an aerosol former component.
  • An aerosol generating device is a hand-held inhaler device having a casing to accommodate working components.
  • the casing of the aerosol generating device may be elongated in a shape for a user to hold. It typically comprises a housing for at least a portion of, or for a complete, consumable article, a heating unit and a power supply unit, such as a battery. Vaporization is achieved when the heating unit heats the consumable article to form an aerosol that is inhalable through a mouthpiece section or directly through the article.
  • an aerosol generating device for generating an aerosol from an aerosol generating substrate, comprising: a chamber for accommodating at least a portion of, or completely, an article comprising the aerosol generating substrate, a heater being configured to heat the aerosol generating substrate, when present in the chamber, in order to generate the aerosol, the heater comprising a light apparatus comprising a light emitting element, producing a light beam configured to generate heat, the heater further comprising a lightguide comprising a body through which the light beam passes, the lightguide being configured to direct the light beam onto the aerosol generating substrate when present in the chamber.
  • the heater may comprise a beam focusing lens being configured to concentrate the light beam produced by the light emitting element into the lightguide.
  • the focusing lens may be a distinct part from the light emitting element.
  • the focusing lens may be an add-on part for the light emitting element, or an add-on part for the lightguide.
  • the lightguide and the chamber may be aligned along an assembly axis.
  • the lightguide may comprise a bottom part surrounding the beam focusing lens.
  • the beam focusing lens is dome shaped.
  • the bottom part of the lightguide may comprise a complementary dome-shaped surface surrounding the beam focusing lens.
  • the lightguide may comprise a reflective coating applied onto at least a portion of an outer wall of the body.
  • a reflective coating preferably comprises an aluminized surface.
  • the body of the lightguide may comprise an elongated portion comprising a top portion forming a cover overlapping the elongated portion and having a curved edge extending in line with the elongated portion.
  • the aerosol generating device may comprise an auxiliary heater configured to heat the aerosol generating substrate.
  • the auxiliary heater may externally surround at least part, or completely, the chamber.
  • the auxiliary heater may comprise an auxiliary heating element chosen in the group of: a resistive heating element, an inductive heating element and a piezoelectric heating element, preferably a resistive heating element.
  • the light emitting element may be a Topological-cavity surface-emitting laser (TCSEL).
  • TCSEL Topological-cavity surface-emitting laser
  • the light emitting element may be a light emitting diode, preferably emitting infrared light.
  • Infrared LED (“Light Emitting Diodes”) may be more divergent than VCSEL.
  • the article of the aerosol generating system may be a stick.
  • the aerosol generating substrate may comprise compressed or reconstituted tobacco.
  • the article, the chamber and the lightguide in the aerosol generating system may meet one of the relative positions here-above indicated.
  • FIG. 1 is a schematic view in longitudinal section of an aerosol generating device according to an example
  • FIG. 2 is a schematic exploded view in perspective of an example of an aerosol generating device, that is to be assembled along an assembly axis A,
  • Fig. 4 is a partial schematic view in longitudinal section of an aerosol generating system according to an example
  • Fig. 5 is an isolated schematic perspective view of a lightguide of an aerosol generating device according to an example
  • the casing 11 may feature an inhalation duct 13.
  • Such an inhalation duct 13 may be configured to allow an article to be introduced in the aerosol generating device when used.
  • the inhalation duct 13 may comprise for example a protruding tube-shaped part or, as illustrated here, a simple orifice in the casing 11 through which the article may be introduced as will be explained below.
  • the assembly 15 may comprise, from bottom to up: a heater 4 comprising a light emitting element 51 , a focusing lens 7, a lightguide 8, and, above the heater 4, a chamber 9 for accommodating an article 2 comprising an aerosol generating substrate 3, as shown in figures 2 and 3.
  • the inhalation duct 13 may be aligned with the assembly 15.
  • the chamber 9 has an elongated shape that extends along the assembly axis A.
  • the aerosol generating device 1 is shown in more detail in figure 2.
  • the chamber 9 may comprise a peripheral wall 99, which may be cylindrical, delimiting an interior space.
  • the chamber 9 may comprise an upper end 96 that is open.
  • the chamber 9 is designed to accommodate an article 2 comprising an aerosol generating substrate 3.
  • the chamber 9 may communicate with the inhalation duct 13 through the upper end 96, in such a way that an air flow initiated by inhalation of a user may cross the chamber 9 and evacuate through the inhalation duct 13 and the article 2.
  • the inhalation duct 13 and the upper end 96 may further be configured to let the article 2 at least partly into an interior space of the chamber 9, for example when recharging a used-up aerosol generating substrate.
  • the article 2 comprises an aerosol generating substrate 3 that may be in a liquid or in a solid form, being for example made from compressed or reconstituted tobacco.
  • the article 2 may be a stick, that may be known as a heat-not-burn stick (HTS) as shown in Figures 2 and 4, or a parallelepipedal cassette or in another shape.
  • the chamber 9 may be designed to accommodate one or more types of aerosol generating substrates. In the shown example, the chamber 9 is in the shape of a hollow stick in order to accommodate the stick-like article 2.
  • the heater 4 comprises a light apparatus 5 comprising the light emitting element 51 , producing the light beam 6 configured to generate heat.
  • the light emitting element 51 may comprise an infrared LED (Light Emitting Diode), or an EEL (Edge Emitting Laser), or a VCSEL (Vertical Cavity Surface Emitting Laser), or a TCSEL (Topological Cavity Surface Emitting Laser), or any other type of light emitting elements known to the skilled person.
  • the light emitting element 51 comprises a VCSEL.
  • the use of a VCSEL may be advantageous as being effective and having a more efficient manufacturing process which allows mass production at minimum cost.
  • the aerosol generating device 1 may further comprise a printed circuit board PCB connected to the energy storage device 12 and suited for controlling the light emitting element 51.
  • the PCB may be operated by a button, or any other type of user interface generally present on the casing 11 and designed to receive a command from a user of the aerosol generating device 1 .
  • the lightguide 8 is configured to be crossed by the light beam 6.
  • the lightguide 8 comprises a body 81 comprising transparent matter through which the light beam 6 passes.
  • the lightguide 8 may comprise an opened hollow passage that goes all the way through the lightguide 8 along the assembly axis A to direct the light beam 6. This may allow for improved compactness.
  • the light beam 6 is emitted from the light emitting element 51 and is reflected by the outer wall 86 of the body 81 having the reflective coating 82.
  • the light beam 6 is therefore confined into the boundaries of the lightguide 8 to be directed towards the chamber 9.
  • the assembly axis A may cross the light emitting element 51 , the focusing lens 7 and the lightguide 8.
  • the assembly axis A may in addition cross the chamber 9 and the inhalation duct 13.
  • the chamber 9 may comprise an elongated shape that extends in a direction parallel to the assembly axis A.
  • the lightguide 8 may comprise a body 81 comprising an elongated portion that extends along the assembly axis A, and the chamber 9 may comprise an elongated shape that extends in a direction parallel to the assembly axis A.
  • the lightguide 8 and the chamber 9 may both comprise elongated shapes, that extend along the assembly axis A, thus being aligned one after the other in a sequence along the assembly axis A.
  • the body 81 may comprise a hollow portion, for example a tunnel extending all the way through the elongated portion from its bottom end to an upper end of the lightguide 8, to let the light beam 6 through.
  • the body 81 comprises in this example a top portion 87 forming a cover overlapping the elongated portion and having a convex curved edge 83 extending in line with the elongated portion.
  • the curved edge 83 form a radius particularly visible on figure 5 that helps focusing the light beam inside the chamber 9 on the aerosol generating substrate 3.
  • Such a concentrated light beam 6 allows for a more localized heating that, in some cases, may prevent burning surrounding parts.
  • the article 2 may comprise paper surrounding a stick shaped aerosol generating substrate 3, the curved edge 83 may prevent the light beam from burning the surrounding paper which would create a displeasing burning taste for the user.
  • the top portion 87 may comprise a flat part 88 that is in the center of the top portion 87, in this example.
  • the flat part 88 may be perpendicular to the assembly axis A.
  • the curved edge 83 may join the elongated portion of the body 81 to the flat part 88 by forming a radius, as shown in particular in figures 5 and 6.
  • the chamber 9 may comprise a recipient 94 which is for example opened at the upper end 96, designed to accommodate the aerosol generating substrate 3.
  • the recipient 94 may have a shape of a cylinder of a diameter substantially equal to the article 2 to avoid the aerosol generating substrate 3 from moving inside it.
  • the chamber 9 may further comprise a bottom cup holder 91 and a top cup holder 92 configured to fasten the recipient 94 to a structure part 14 of the device.
  • the bottom and the top cup holders 91 , 92 are used to fasten the recipient 94 to the structure part 14 that is itself fastened to the casing 11 of the aerosol generating device 1 .
  • the chamber 9 may further comprise a top seal 93 that is configured to avoid leakage of air and/or humidity by the inhalation duct 13 inside the casing 11 .
  • the top seal 93 may for example extend between the top cup holder 92 and the casing 11 . It may be in any material allowing for a sealing function such as a rubber or an elastomer.
  • the structure part 14 may comprise a structural body 141 elongated along the assembly axis A.
  • the additional structure part 14 may comprise first fastening portions configured to cooperate with second fastening portions of the casing 11 of the aerosol generating device 1 .
  • the structure part 14 may comprise a plurality of third fastening portions configured to hold the chamber 9, for example via holding the bottom cup holder 91 and the top cup holder 92, and to hold the lightguide 8, and/or to hold the light apparatus 5.
  • the plurality of third fastening parts may be configured to align the lightguide 8 and the chamber 9 along the assembly axis A.
  • the chamber 9 may comprise a bottom portion 97 with an aperture 98, or a transparent portion, configured to let the focused light beam 6 penetrate the chamber 9 in order to heat the aerosol generating substrate 3.
  • the lightguide 8 penetrates into the chamber 9 through the aperture 98 at the bottom portion 97 of the chamber 9, said opening may for example be arranged in a bottom of the recipient 94 and/or in the bottom cup holder 91 , in this example in both the bottom of the recipient 94 and the bottom cup holder 91.
  • the top portion 87 of the body 81 may extend through the aperture 98 within the bottom portion 97 of the chamber 9.
  • the bottom portion 97 of the chamber 9 may comprise an aperture 98 not only for light, but also to let air through.
  • the casing 11 may comprise an air inlet to let in some air from the outside when a user inhales.
  • the air inlet may be an orifice or at least one slot arranged in the casing (not represented). The air may then pass through the opening at the bottom portion 97 of the chamber 9 to charge itself with aerosol and create an air flow through the inhalation duct 13 to the mouth of a user.
  • the light apparatus 5 may comprise the light emitting element 51 and a support plate 52, arranged for example in an example particularly shown in figure 3, extending in this example substantially perpendicularly to the assembly axis A.
  • the lightguide 8 may be fastened to the light apparatus 5, via an at least partially plane surface of the support plate 52, for example an upper surface of the support plate 52.
  • the lightguide 8 may be fixed to the light apparatus 5 with a high-temperature silicone glue, in order to withstand the high functioning temperatures of the device.
  • the lightguide 8 may be fastened in another way.
  • the lightguide 8 may be maintained at a distance of the light apparatus 5 by fastening means to the structure part 14 or may comprise any other fastening solution known to the skilled person.
  • the PCB may for example be fastened on a PCB support wall 53.
  • the PCB support wall 53 may be made of material with the support plate 52.
  • the aerosol generating device may further comprise an auxiliary heater 95 configured to heat the aerosol generating substrate 3 in addition to the heater 4 comprising the light apparatus 5.
  • auxiliary heater 95 may be proven effective to help perform a more consistent heating of the aerosol generating substrate 3.
  • the auxiliary heater 95 may be arranged at close distance to the chamber 9 for energetic efficiency, for example it may be externally surrounding, at least in part or completely the peripheral wall 99 delimiting the chamber 9.
  • the auxiliary heater 95 may comprise an auxiliary heating element chosen in the group: a resistive heating element, an inductive heating element and a piezoelectric heating element.
  • the auxiliary heating element 95 comprises a resistive heating element.

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  • Radiation-Therapy Devices (AREA)

Abstract

La présente invention concerne un dispositif de génération d'aérosol (1) destiné à générer un aérosol à partir d'un substrat de génération d'aérosol (3), ledit dispositif comprenant : - une chambre (9) destinée à recevoir au moins une partie, ou la totalité, d'un article (2) comprenant le substrat de génération d'aérosol (3), - un dispositif de chauffage (4) étant conçu pour chauffer le substrat de génération d'aérosol (3), lorsqu'il est présent dans la chambre (9), pour générer l'aérosol, le dispositif de chauffage (4) comprenant un appareil lumineux (5) comprenant un élément électroluminescent (51) produisant un faisceau lumineux (6) conçu pour générer de la chaleur, le dispositif de chauffage (4) comprenant en outre un guide de lumière (8) comprenant un corps (81) à travers lequel passe le faisceau lumineux (6), le guide de lumière (8) étant conçu pour diriger le faisceau lumineux (6) sur le substrat de génération d'aérosol (3) lorsqu'il est présent dans la chambre (9).
PCT/EP2024/077791 2023-10-06 2024-10-02 Dispositif de génération d'aérosol Pending WO2025073794A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23202049.5 2023-10-06
EP23202049 2023-10-06

Publications (1)

Publication Number Publication Date
WO2025073794A1 true WO2025073794A1 (fr) 2025-04-10

Family

ID=88295793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/077791 Pending WO2025073794A1 (fr) 2023-10-06 2024-10-02 Dispositif de génération d'aérosol

Country Status (1)

Country Link
WO (1) WO2025073794A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998017130A1 (fr) * 1996-10-22 1998-04-30 Philip Morris Products Inc. Systeme electronique a base d'un briquet et d'une cigarette
WO2016184783A1 (fr) * 2015-05-15 2016-11-24 British American Tobacco (Investments) Limited Article et appareil de génération d'un aérosol
WO2020148213A1 (fr) * 2019-01-14 2020-07-23 Philip Morris Products S.A. Élément générateur d'aérosol chauffé par infrarouge
EP4091477A1 (fr) * 2020-01-18 2022-11-23 Shenzhen First Union Technology Co., Ltd. Dispositif de génération d'aérosol
EP4133955A1 (fr) * 2021-03-29 2023-02-15 KT&G Corporation Dispositif de génération d'aérosol par laser et procédé de commande de chauffage associé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998017130A1 (fr) * 1996-10-22 1998-04-30 Philip Morris Products Inc. Systeme electronique a base d'un briquet et d'une cigarette
WO2016184783A1 (fr) * 2015-05-15 2016-11-24 British American Tobacco (Investments) Limited Article et appareil de génération d'un aérosol
WO2020148213A1 (fr) * 2019-01-14 2020-07-23 Philip Morris Products S.A. Élément générateur d'aérosol chauffé par infrarouge
EP4091477A1 (fr) * 2020-01-18 2022-11-23 Shenzhen First Union Technology Co., Ltd. Dispositif de génération d'aérosol
EP4133955A1 (fr) * 2021-03-29 2023-02-15 KT&G Corporation Dispositif de génération d'aérosol par laser et procédé de commande de chauffage associé

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