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WO2025176859A1 - Dispositif de génération d'aérosol avec éléments miroir - Google Patents

Dispositif de génération d'aérosol avec éléments miroir

Info

Publication number
WO2025176859A1
WO2025176859A1 PCT/EP2025/054751 EP2025054751W WO2025176859A1 WO 2025176859 A1 WO2025176859 A1 WO 2025176859A1 EP 2025054751 W EP2025054751 W EP 2025054751W WO 2025176859 A1 WO2025176859 A1 WO 2025176859A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol
article
light
light source
generating 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.)
Pending
Application number
PCT/EP2025/054751
Other languages
English (en)
Inventor
Franck Pourrat
Dick Paul VOERMAN
Sebo POPKEN
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 WO2025176859A1 publication Critical patent/WO2025176859A1/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 light heating which is a non-contact heating method, heats an aerosol-generating substrate for producing aerosol.
  • a light source emits light which diverges from the light source and projects onto the aerosol generating substrate.
  • an aerosol generating system including an aerosol generating device and an aerosol generating article, that is adapted to provide an efficient light heating to the aerosol-generating substrate of the aerosol generating article.
  • an aerosolgenerating device having a non-coherent light source and one or more mirrors adapted to converge non-coherent light emitted by the light source on a portion of an aerosolgenerating article inserted into the device.
  • the one or more light sources are LEDs, in particular LEDs emitting blue light.
  • the visible light of the LED(s) can be absorbed by the aerosol generating substrate and heat the substrate to generate the aerosol.
  • the light having a wavelength of blue light is more efficiently absorbed, resulting in the generation of more heat and thus aerosol.
  • a wavelength of the non-coherent light extends from 415 nm up to and including 495 nm, preferably from 440 nm up to and including 465 nm, and most preferably from 450 nm up to and including 455 nm.
  • At least one, preferably all of the one or more mirrors are curved, preferably concave, more preferably dome-shaped, in a way such that a curved portion of the mirror can converge non-coherent light emitted by the light source on a portion of an aerosolgenerating article inserted into the device.
  • At least one, preferably all, of the one or more mirrors are, in at least one cross section, parabolic, or arc-shaped.
  • the mirror elements With such mirror elements, more light rays can be converged on the aerosol generating substrate such that it can be heated up effectively.
  • the mirror having a concave reflective surface the light maybe directed to the target area in which the aerosol generating substrate is arranged. In this way, any further optical elements for directing the light towards the target area may be omitted.
  • a focal point of at least one or more mirrors coincides with a portion of the aerosolgenerating article inserted into the device.
  • the light source and the light-source-side mirror are positioned in a way such that the light-source-side mirror encloses the light source.
  • one of the one or more mirrors is an article-side mirror, which is placed at a side of the article substantially opposite the light source.
  • one of the one or more mirrors is an article-side mirror, which is placed at a side of the article substantially opposite the light source, preferably, in a way such that the non-coherent light source and at least a portion of the aerosol-generating article inserted into the device are substantially surrounded by the article-side mirror and the light-source-side mirror.
  • Fig. 1 shows a schematic illustration of an aerosol generating device with a noncoherent light source and mirrors according to one embodiment of the invention
  • Fig. 2 shows a schematic illustration of an aerosol generating device with a light- source-side mirror according to an embodiment of the invention
  • Fig. 3 shows a schematic illustration of an aerosol generating device with a light- source-side mirror and an article-side mirror according to an embodiment of the invention
  • Figs. 5A and 5B show a cross section view of a part of an aerosol generating device having a light-source-side mirror and a light source, and a corresponding graph showing a relation between the central axis of the light source and its relative light density according to one embodiment of the invention.
  • the term “aerosol generating device” “vaporizer system”, “inhaler” or “electronic cigarette” may include an electronic cigarette configured to deliver an aerosol to a user, including an aerosol for smoking.
  • the illustrated embodiments of the aerosol generating system in this invention are schematic, and it is also possible to combine some of the parts into single units, such as aerosol inlet and outlet, operator or computer modules, which are apparent to a person skilled in the art.
  • An aerosol for smoking may refer to an aerosol with particle sizes of 0.5 - 7 microns. The particle size maybe less than 10 or 7 microns.
  • the electronic cigarette maybe portable and can be used in various orientations and positions by the user.
  • the aerosol generating system 1 comprises an aerosol generating device 10 and an aerosol generating article 20.
  • the aerosol generating system 1 can be used as a substitute for a conventional cigarette comprising shredded tobacco.
  • the aerosol generating article 20 has a tobacco substrate, preferably reconstituted tobacco.
  • the tobacco substrate may comprise tobacco strands or shreds or gathered tobacco sheets and binder.
  • the substrate generally contains tobacco predominantly made up from tobacco leaf (or lamina) and/or stem and/or reconstituted tobacco.
  • the substrate generally comprises an aerosol former.
  • the aerosol former constitutes generally at least 5%, e.g. between 5 and 20% of the tobacco substrate.
  • thermal and/ or light-conducting materials may be added into the substrate.
  • the aerosol generating device 10 further comprises an article container 114, an electronic control circuitry 116 configured to control an operation of the aerosol generating device 10, and a power source 117, preferably a lithium battery.
  • the aerosol-generating article 20 is arranged to be replaceable within the article container 114. In use, after the user places the aerosol-generating article 10 within the article container 114, the aerosol-generating article 20 is ready to be heated within the article container 114.
  • the article container 114 is configured to contain and heat the aerosol generating article 20 so as to generate aerosol for the user to consume.
  • the article container 114 comprises a light source 120 and light converging means 118, 119 configured to converge the light emitted by the light source 120 to at least a portion of the aerosol generating article 20, when the aerosol generating article 20 is fully received within or inserted into the article container 114.
  • the heating module may further comprise article support means (not shown)configured to securely contain and fix the article 20 within the aerosol generating device 10.
  • the article support means may be made of metal, plastic or any other suitable material.
  • the article support means 121 is a bracket.
  • the bracket body has a shape corresponding to the shape of the aerosol generating article 20.
  • the bracket body is designed to accommodate various shapes and sizes of the aerosol generating article 20, such as a rectangular shape or a square shape.
  • the bracket body is configured to engage with a part of the aerosol generating article and provide a stable support.
  • the bracket body is designed to support the edges of the aerosol generating article 20 only, so that the remaining area of the outer surface of the aerosol generating article 20 is not obstructed by the bracket body.
  • the bracket 121 allows the aerosol generating article 20 to be substantially exposed to the light source 120 and the light converging means 118, 119, which is beneficial for the heating of the aerosol generating article 20.
  • the light source 120 is arranged at a position of the aerosol generating device 10 such that the light source 120 faces at least one side of the aerosol generating article 20 when received within the device 10.
  • the light source is arranged next to the article support means 121.
  • the light source 120 is a non-coherent light source.
  • the non-coherent light sources 120 also commonly known as lamp or incoherent light sources
  • the light emitted from the noncoherent light source 120 diffuses, unlike in the case of a laser. This results in a divergence of the emitted light from the light source 120.
  • the non-coherent light source 217 is a high-power LED light source. High power LEDs are known at near infra-red (850 nm) and ultraviolet (405 nm) spectra.
  • the LED light source emits blue light (380 to 500 nm wavelength).
  • High power LEDs can generate heat to a degree such that an aerosol can be formed from the aerosol generating article 10 after being radiated by the light.
  • one LED is set as the non-coherent light source 120. In other embodiments, multiple LEDs are set as the non-coherent light source 120.
  • the article container 114 comprises one or more mirror(s) 118, i.e., the light-source-side mirror, placed at a side of the light source 120 substantially opposite the aerosol generating article 20 when fully received (or the article support means 121).
  • the light source 120 maybe arranged between the aerosol generating article 20 (or the article support means 121) and the light-source-side mirror 118.
  • the non-coherent light source 120 and the light-source-side mirror 118 are positioned in a way such that the light-source-side mirror encloses the non-coherent light source 120.
  • the non-coherent light source 120 is positioned within the volume of the light-source-side mirror 118, or is interior to the concave shape of the light-source-side mirror 118, but the light-source-side mirror 118 does not completely surround or enclose either the non-coherent light source 120 or the aerosol generating article 20.
  • the light source 120 maybe arranged on the mirror 118 (Fig. 5A).
  • the concave mirror has a reflective surface that is curved in a way such that the light beams that travel towards directions away from the aerosol generating article 20 are reflected to be redirected by the reflective surface of the mirror 118 and towards the aerosol generating article 20.
  • the light from the non-coherent light source 120 can be substantially converged on at least one surface of the aerosol generating article 20 that is facing the light-source-side mirror 118 when in use.
  • the light-source-side mirror 118 and the noncoherent light source 120 may be arranged in a way such that at least one focal point of the light-source-side mirror 118 coincides with a portion of the aerosol generating article 20.
  • At least one section of the light-source-side mirror 118 represents a parabolic as shown in the figures. Accordingly, the non-coherent light source 120 is arranged at or adjacent to the apex or the peak of the parabolic shape of the light-source-side mirror 118. As shown in Fig. 5B, the mirror 118 with a parabolic shape as shown in Fig. 5A produces or distributes a higher light intensity to the central axis AA’, so that the light from the light source 117 can substantially converge onto the aerosol generating article 20 that is arranged close to the light-source-side mirror 118 when in use.
  • the article container 114 further comprises one or more mirror(s) 119, i.e., the article-side mirror 119, placed at a side of the article 20 (or the article support means 121) substantially opposite the light source 120.
  • the aerosol generating article 20 (or the article support means 121) is arranged between the light source 120 and the article-side mirror 119.
  • the article-side mirror 119 and the non-coherent light source 120 are arranged in a way such that the light from the non-coherent light source 120 can be reflected and converged onto at least the side(s) of the aerosol generating article 20 facing away from the non-coherent light source 120.
  • the configuration with both the article side mirror 119 and the light source side mirror 118 is advantageous because it provides more flexibility to the arrangement of the mirrors, the light source 120 and the aerosol generating article 20. Consequently, the manufacturing tolerance can also be reduced.
  • the article side mirror 119 comprises a larger reflective surface, i.e., a greater mirror diameter, than the light source side mirror 118.

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un dispositif de génération d'aérosol ayant une source de lumière non cohérente et un ou plusieurs miroirs conçus pour faire converger la lumière non cohérente émise par la source de lumière sur une partie d'un article de génération d'aérosol inséré dans le dispositif. La présente invention concerne également un procédé de chauffage d'au moins une partie d'un article de génération d'aérosol dans le dispositif de génération d'aérosol et un système de génération d'aérosol comprenant le dispositif et un article de génération d'aérosol.
PCT/EP2025/054751 2024-02-22 2025-02-21 Dispositif de génération d'aérosol avec éléments miroir Pending WO2025176859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP24159080.1 2024-02-22
EP24159080 2024-02-22

Publications (1)

Publication Number Publication Date
WO2025176859A1 true WO2025176859A1 (fr) 2025-08-28

Family

ID=90054194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/054751 Pending WO2025176859A1 (fr) 2024-02-22 2025-02-21 Dispositif de génération d'aérosol avec éléments miroir

Country Status (1)

Country Link
WO (1) WO2025176859A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2641533Y (zh) * 2003-06-02 2004-09-15 中国科学院金属研究所 一种新型光学点状区域加热装置
WO2016112579A1 (fr) * 2015-01-14 2016-07-21 深圳市百康光电有限公司 Cigarette électronique à chauffage optique
WO2020148214A1 (fr) * 2019-01-14 2020-07-23 Philip Morris Products S.A. Système de génération d'aérosol chauffé par rayonnement, cartouche, élément de génération d'aérosol et procédé associé
KR20210137833A (ko) * 2020-05-11 2021-11-18 주식회사 케이티앤지 에어로졸 생성 장치 및 에어로졸 생성 시스템

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2641533Y (zh) * 2003-06-02 2004-09-15 中国科学院金属研究所 一种新型光学点状区域加热装置
WO2016112579A1 (fr) * 2015-01-14 2016-07-21 深圳市百康光电有限公司 Cigarette électronique à chauffage optique
WO2020148214A1 (fr) * 2019-01-14 2020-07-23 Philip Morris Products S.A. Système de génération d'aérosol chauffé par rayonnement, cartouche, élément de génération d'aérosol et procédé associé
KR20210137833A (ko) * 2020-05-11 2021-11-18 주식회사 케이티앤지 에어로졸 생성 장치 및 에어로졸 생성 시스템

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