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EP4156996B1 - Konisches heizelement für ein elektronisches aerosolversorgungssystem - Google Patents

Konisches heizelement für ein elektronisches aerosolversorgungssystem Download PDF

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Publication number
EP4156996B1
EP4156996B1 EP21734212.0A EP21734212A EP4156996B1 EP 4156996 B1 EP4156996 B1 EP 4156996B1 EP 21734212 A EP21734212 A EP 21734212A EP 4156996 B1 EP4156996 B1 EP 4156996B1
Authority
EP
European Patent Office
Prior art keywords
conically shaped
heating element
vaporizable material
shaped heating
capsule
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.)
Active
Application number
EP21734212.0A
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English (en)
French (fr)
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EP4156996A1 (de
Inventor
Claude Zominy
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
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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 EP4156996A1 publication Critical patent/EP4156996A1/de
Application granted granted Critical
Publication of EP4156996B1 publication Critical patent/EP4156996B1/de
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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
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/44—Wicks
    • 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
    • A24F40/40—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
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the present disclosure relates to elements for an aerosol generating system and for producing an aerosol or vapor for inhalation by a user.
  • the present disclosure relates more particularly to an aerosol generating system with a conically shaped heating element and a corresponding vaporizable material cartridge for holding a vaporizable material to generate an aerosol or vapor.
  • the present disclosure also relates to a mesh structure located in a gap between the conically shaped heating element and the cavity surface of the cartridge, and designed to receive the vaporizable material.
  • aerosol generating systems also known as e-cigarettes, e-cigs (EC), electronic nicotine delivery systems (ENDS), electronic non-nicotine delivery systems (ENNDS), electronic smoking devices (ESDs), personal vaporizers (PV), inhalation devices, vapes, which can be used as an alternative to conventional smoking articles such as lit-end cigarettes, cigars, and pipes, is becoming increasingly popular and widespread.
  • e-cigarettes are usually battery powered and use a resistance heating element to heat and atomize a liquid containing nicotine and/or flavorants (also known as e-cigarette liquid, e-cig liquids, e-liquid, juice, vapor juice, smoke juice, e-juice, e-fluid, vape oil) (https://en.wikipedia.org/wiki/Construction_of_electronic_cigarettes" ⁇
  • nicotine and/or flavorants also known as e-cigarette liquid, e-cig liquids, e-liquid, juice, vapor juice, smoke juice, e-juice, e-fluid, vape oil
  • the liquid is put into contact with a resistance heating element after flowing through small channels, where it is heated and vaporized.
  • the flowing is realized for example via a wick, a mesh or another type of porous element, which has a plurality of small channels that transport the liquid from a reservoir to the heating element.
  • This heating element together with the porous element, a reservoir that contains the e-liquid, and a mouthpiece may be arranged within a disposable capsule, cartridge or pod, that is discarded or refilled once the e-liquid has been consumed by the user, and usually removably connects to a main body that includes a rechargeable battery.
  • US2018235278A1 discloses an example of an electrically resistive heating element to be inserted into a tobacco stick.
  • the heating element comprises a summit of a cone shaped blade and a base of the blade, configured such that, when an electrical current is passed through the heating element, the summit of the cone shaped blade is heated to a higher temperature than the base of the blade.
  • US22006430B2 discloses a conical shaped heater made of an electrically resistive track provided on a flexible substrate. The document further discloses that the heater is configured to be insertable into the recess of a capsule, the latter being frusto-conical in shape, and having a substantially circular cross-section.
  • US 2018/153209 A1 discloses an inhalant material container for electronic smoking device which is a tube-like storage container with an open top and an open bottom.
  • US 2020/046023 A1 discloses a method for providing an aerosol-generating device for use with a shape-transformable aerosol-forming substrate which comprises providing an aerosol-generating device comprising a device housing comprising a moulding cavity.
  • US 2018/332897 A1 discloses aerosol delivery devices, methods of forming such devices, and elements of such devices.
  • the present disclosure provides a heating member that can be formed of a heating element conformed to a heater substrate configured as a truncated cone (or similar shape) having a first end of a first size and a second end of greater size.
  • the present disclosure seeks to provide an alternative system, specifically one that works with a vaporizable material cartridge that holds a vaporizable material substance to generate aerosol.
  • the invention provides an aerosol generating device according to claim 1.
  • the conically shaped heating element of the aerosol-generating device and conically shaped alignment element of the capsule are complementary to each other to provide automatic alignment and adjustment of the capsule to the heating element in use, thereby preventing misconnections or misalignments, which may cause leakage of vaporizable material from the capsule in use.
  • the proper alignment of the capsule to the heating element through the conical engagement and the mating conical surfaces thereof ensures proper contacting of the capsule to the heating surface and better vaporizable material release and gradual heating thereof along the whole surface of the heating element, for a more efficient heating and aerosol generation.
  • the conical heating element of the device may be configured as a male element and the conical alignment element of the capsule may be configured as a complementary female receiving element for the heating element, or vice-versa, offering various device/capsule design opportunities without functional alteration to either the device or capsule.
  • the aerosol generating device further comprises a vaporizable material releasing means configured to enable the vaporizable material to flow from the vaporizable material capsule into a space located between a surface of the conically shaped alignment element and the conically shaped heating element at a time of mating.
  • the slanted surface of the conically shaped alignment element comprises at least a first groove enabling a flow of evaporated vaporizable material in use.
  • the e-liquid capsule further comprises a mesh structure located on the slanted surface of the conically shaped alignment element and configured to receive the e-liquid by capillarity and enabling an evaporation of e-liquid when heated.
  • the slanted surface of the conically shaped heating element further comprises at least a second groove enabling a flow of evaporated vaporizable material in use.
  • the mesh structure is located adjacently to the slanted surface of the conically shaped heating element.
  • the conical shape of any of the heating element or alignment element is any one of the list comprising a cone, a frusto-cone, a bullet, a frusto-bullet, an ogival shape, a frusto-ogival shape.
  • the aerosol generating device further comprises a body element configured to house a power source for the heat source, and an attaching means configured to attach the conically shaped heating element to the body element.
  • the attaching means is further configured to removably attach the conically shaped heating element to the body element.
  • the invention provides a vaporizable material capsule according to claim 8.
  • the conically shaped heating element is part of the vaporizable material capsule and comprises electrical connectors to connect said conically shaped heating element to a power source of an aerosol generating device.
  • the conically shaped heating element comprises at least a groove enabling a flow of evaporated vaporizable material.
  • vaporizable material will be used to designate any material that is vaporizable at a temperature up to 400°C, preferably up to 350°C. for example aerosol generating liquid, gel, wax and the like.
  • an aerosol generating device 001 comprises a body element 100, an vaporizable material capsule 200 and a conically shaped heating element 300.
  • the assembly of all three elements results in a device operated by a user (user not represented in Figure 1 ) through which an vaporizable material contained in the vaporizable material capsule 200 flows towards the conically shaped heating element 300 to be evaporated and becomes the aerosol (vaporizable material and aerosol not represented in Figure 1 ).
  • the aerosol generating device 001 further comprises a vapor conduit 220 configured to allow the aerosol circulation from an evaporation point at the heating element 300 to a mouthpiece 230.
  • the body element 100 may be designed to be held by hand and therewith operated by the user.
  • the body element may house a power source 110 for the conically shaped heating element (conically shaped heating element not represented in Figure 2 ) and features a first attaching means 120 configured to attach the conically shape heating element to it.
  • the vaporizable material capsule 200 of the aerosol generating device may comprise a chamber or reservoir 210 configured to contain or hold at least one vaporizable material (vaporizable material not represented in Figure 3 ).
  • the vaporizable material capsule further comprises the vapor conduit 220.
  • the vaporizable material capsule 200 is at the same time the receptacle of the vaporizable material, a part of a vaporization chamber of the aerosol, and an extremity of an inhalation device for the user, who may inhale the aerosol through the mouthpiece 230 located at an end of the vapor conduit 220.
  • the vaporizable material capsule 200 of Figure 3 further features a concave cavity 250 designed to mate with the conically shaped heating element (not represented in Figure 3 ).
  • the conically shaped, concave, cavity 250 advantageously forms an alignment element of the capsule that is complementary to the conically shaped heating element of the aerosol-generating device, which provides automatic alignment and adjustment of the capsule to the heating element in use.
  • alignment reduces leakage of vaporizable material from the capsule in use.
  • this ensures proper contacting of the capsule to the heating surface and better vaporizable material release and gradual heating thereof along the whole surface of the heating element, as will be described hereinafter.
  • the conical heating element of the device may be configured as a female, cavity element with a complementary male alignment element of the capsule.
  • the conically shaped heating element 300 may comprise a convex slanted surface 310.
  • the conically shaped heating element 300 may further house a heat source 320 configured to provide a heat gradient along the convex slanted surface 310, when in use.
  • the conically shaped heating element 300 may be configured to be first attached to the body element's first attaching means (not represented in Figure 4 ) through a second attaching means 330 and then be mated with the vaporizable material capsule (not represented in Figure 4 ).
  • the conically shaped heating element 300 is configured to be mated first with the vaporizable material capsule, by introduction into the concave cavity (not represented in Figure 4 ) and then attached to the body element by means of the second attaching means 330. Both preferred embodiments allow to implement a procedure that leads to the same result of the assembly of all three elements to obtain the aerosol generating device.
  • the conically shaped heating element 300 may have a shape taken for example of the list containing a cone, a frusto-cone, a bullet, a frusto-bullet, an ogival shape, a frusto-ogival shape.
  • the conically shaped heating element 300 may be made out of ceramics.
  • a gap 410 is obtained between the convex slanted surface 310 of the conically shaped heating element 300 and the concave slanted surface 250 of the cavity of the vaporizable material capsule.
  • a mesh structure 400 is located in the gap between the convex slanted surface 310 of the conically shaped heating element and the concave slanted surface 250 of the cavity of the vaporizable material capsule. This mesh structure 400 is fixed on the concave slanted surface 250 of the cavity of the vaporizable material capsule.
  • the mesh structure 400 is designed to receive the vaporizable material from the vaporizable material capsule by capillarity and to enable the vaporizable material to evaporate by bringing it towards the conically shaped heating element 300.
  • the heat source 320 of the conically shaped heating element 300 produces heat through resistive heat dissipation of current from the current supply, by means of an electric resistance inside, and in a known fashion (the electric resistance inside the heat source, and the connections to the current supply are not represented in the Figure).
  • the design following which the electric resistance is positioned inside the conically shaped heating element 300 enables, by design, the provision of a heat gradient along the convex slanted surface, for instance hotter at the base than at the tip of the conically shaped heating element 300. This heat gradient enables to selectively evaporate distinct components of the vaporizable material when received by the mesh structure and brought towards the convex slanted surface of the conically shaped heating element.
  • the heat source of the conically shaped heating element generates an aerosol through evaporation.
  • the aerosol is generated within the mesh 400 located in the gap 410 between the convex slanted surface of the conically shaped heating element and the concave slanted surface of the cavity of the vaporizable material capsule. It ultimately leaves the aerosol generating device through the vapor conduit 220. From the mesh structure to the vapor conduit, the aerosol flow is led through at least one groove 251 located on the concave slanted surface 250 of the cavity of the vaporizable material capsule (see Figure 7 ).
  • the aerosol flow may be led through at least one groove 311 located on the convex slanted surface 310 of the conically shaped heating element 300 (see Figure 6 ) or within the gap created by the mating of the conically shaped heating element with the vaporizable material capsule, or a combination of the two.
  • Figure 6 shows schematically a radial cross section of the conically-shaped heating element 300, whereby of course the vapor conduit, as constantly disclosed in the examples herein, is part of the vaporizable material capsule (latter not represented in Figure 6).
  • Figure 7 shows schematically a radial cross-section of the vaporizable material capsule 200 mated with the heating element 300. Different embodiments in which the vapor conduit is located elsewhere may also be realized.
  • the aerosol circulates from the mesh 400 through the groves 311 and/or 251 to the vapor conduit 220 partly at least by suction pressure created by the user inhaling through the mouthpiece located at the extremity of the vaporizable material capsule (both not shown in Figures 6 and 7 ).
  • the groves 311 and/or 251 provide an advantage in that they may shorten the time required for the aerosol to circulate from the mesh where it is produced, to the vapor conduit, because when entering the groves, the aerosol encounters less resistance to its circulation than it does in the mesh. As a consequence, it is also easier for the user to inhale the aerosol from the vapor conduit when it circulates through the groves as compared to the case where the aerosol would have to circulate directly from the mesh into the vapor conduit.

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  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Catching Or Destruction (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Finger-Pressure Massage (AREA)

Claims (10)

  1. Aerosolerzeugungsvorrichtung (001), die Folgendes umfasst:
    ein konisch geformtes Heizelement (300), ausgelegt zum Erzeugen eines Aerosols durch Verdampfen eines verdampfbaren Materials auf einer geneigten Oberfläche (310) des konisch geformten Heizelements (300), und eine Wärmequelle (320), ausgelegt zum Erwärmen des konisch geformten Heizelements (300) in Verwendung, in einer Weise, dass entlang der geneigten Oberfläche (310) ein Wärmegradient bereitgestellt wird,
    wobei die Aerosolerzeugungsvorrichtung (001) ferner Folgendes umfasst:
    eine Kapsel mit verdampfbarem Material (200),
    wobei die Kapsel mit verdampfbarem Material (200) ein konisch geformtes Ausrichtungselement mit einer geneigten Oberfläche (250) umfasst, die ausgelegt ist zum Zusammenfügen mit dem konisch geformten Heizelement (300) der Aerosolerzeugungsvorrichtung (001),
    wobei die geneigte Oberfläche (250) des konisch geformten Ausrichtungselements zumindest eine erste Nut (251) umfasst, die einen Strom von verdampftem verdampfbarem Material ermöglicht,
    wobei die Kapsel mit verdampfbarem Material (200) ferner eine Gitterstruktur (400) umfasst, die sich auf der geneigten Oberfläche (250) des konisch geformten Ausrichtungselements befindet und ausgelegt ist zum Aufnehmen des verdampfbaren Materials durch Kapillarität und Ermöglichen der Verdampfung des verdampfbaren Materials, wenn dieses erwärmt wird.
  2. Aerosolerzeugungsvorrichtung (001) nach Anspruch 1, die ferner Folgendes umfasst:
    ein Mittel zur Freisetzung von verdampfbarem Material, dazu ausgelegt, dem verdampfbaren Material zu ermöglichen, aus der Kapsel mit verdampfbarem Material (200) in einen Raum (410) zu strömen, der sich zu einem Zeitpunkt des Zusammenfügens zwischen einer Oberfläche des konisch geformten Ausrichtungselements und dem konisch geformten Heizelement (300) befindet.
  3. Aerosolerzeugungsvorrichtung (001) nach Anspruch 1, wobei
    die geneigte Oberfläche (310) des konisch geformten Heizelements (300) ferner zumindest eine zweite Nut (311) umfasst, die einen Strom von verdampftem verdampfbarem Material ermöglicht.
  4. Aerosolerzeugungsvorrichtung (001) nach einem der Ansprüche 1 bis 3, wobei
    die Gitterstruktur (400) angrenzend an die geneigte Oberfläche (310) des konisch geformten Heizelements (300) befindlich ist.
  5. Aerosolerzeugungsvorrichtung (001) nach einem der Ansprüche 1 bis 4, wobei
    die konische Form eines beliebigen aus dem Heizelement (300) und dem Ausrichtungselement ein beliebiges aus der Liste ist, die einen Kegel, einen Kegelstumpf, ein Projektil, einen Projektilstumpf, eine Ogivenform, eine Ogivenstumpfform umfasst.
  6. Aerosolerzeugungsvorrichtung (001) nach einem der Ansprüche 1 bis 5, ferner umfassend ein Körperelement (100), ausgelegt zum Beherbergen einer Leistungsquelle (110) für die Wärmequelle (320), und ein Befestigungsmittel (120), ausgelegt zum Befestigen des konisch geformten Heizelements (300) am Körperelement (100).
  7. Aerosolerzeugungsvorrichtung (001) nach Anspruch 6, wobei
    das Befestigungsmittel (120) ferner dazu ausgelegt ist, das konisch geformte Heizelement (300) entfernbar am Körperelement (100) zu befestigen.
  8. Kapsel mit verdampfbarem Material (200) für eine Aerosolerzeugungsvorrichtung, umfassend einen Behälter (210), der eine Ladung von verdampfbarem Material enthält, wobei die Kapsel (200) ferner Folgendes umfasst:
    ein konisch geformtes Ausrichtungselement, ausgelegt zum Zusammenfügen mit einem entsprechenden konisch geformten Heizelement (300), und
    wobei eine geneigte Oberfläche (250) des konisch geformten Ausrichtungselements zumindest eine Nut (251) umfasst, die einen Strom von verdampftem verdampfbarem Material ermöglicht,
    wobei die Kapsel (200) eine Gitterstruktur (400) umfasst, die sich an einer Wand des konisch geformten Ausrichtungselements befindet und ausgelegt ist zum Aufnehmen von verdampfbarem Material aus dem Behälter (210) durch Kapillarität und Ermöglichen einer Verdampfung von verdampfbarem Material, wenn dieses durch das konisch geformte Heizelement (300) erwärmt wird.
  9. Kapsel mit verdampfbarem Material (200) nach Anspruch 8, wobei
    das konisch geformte Heizelement (300) Teil der Kapsel mit verdampfbarem Material (200) ist und elektrische Verbinder umfasst, um das konisch geformte Heizelement (300) mit einer Leistungsquelle (110) einer Aerosolerzeugungsvorrichtung zu verbinden.
  10. Kapsel mit verdampfbarem Material (200) nach Anspruch 9, wobei
    das konisch geformte Heizelement (300) zumindest eine Nut (311) umfasst, die einen Strom von verdampftem verdampfbarem Material ermöglicht.
EP21734212.0A 2020-05-28 2021-05-26 Konisches heizelement für ein elektronisches aerosolversorgungssystem Active EP4156996B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20177049 2020-05-28
PCT/IB2021/054585 WO2021240390A1 (en) 2020-05-28 2021-05-26 Conical heating element for electronic aerosol provision system

Publications (2)

Publication Number Publication Date
EP4156996A1 EP4156996A1 (de) 2023-04-05
EP4156996B1 true EP4156996B1 (de) 2025-02-19

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EP21734212.0A Active EP4156996B1 (de) 2020-05-28 2021-05-26 Konisches heizelement für ein elektronisches aerosolversorgungssystem

Country Status (7)

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US (1) US20230189887A1 (de)
EP (1) EP4156996B1 (de)
JP (1) JP2023527617A (de)
KR (1) KR20230016616A (de)
CN (1) CN115460941A (de)
CA (1) CA3169933A1 (de)
WO (1) WO2021240390A1 (de)

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CN114652022A (zh) * 2022-04-13 2022-06-24 深圳市大迈发展有限公司 雾化结构件、雾化器及气溶胶生成装置

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Publication number Priority date Publication date Assignee Title
EP2984952B1 (de) * 2014-08-12 2018-10-03 Shenzhen First Union Technology Co., Ltd. Zerstäuber und elektronische zigarette damit
EP3711601A1 (de) * 2019-03-21 2020-09-23 Nerudia Limited Aerosolerzeugungsvorrichtung und aerosolabgabesystem

Also Published As

Publication number Publication date
KR20230016616A (ko) 2023-02-02
WO2021240390A1 (en) 2021-12-02
EP4156996A1 (de) 2023-04-05
CA3169933A1 (en) 2021-12-02
JP2023527617A (ja) 2023-06-30
US20230189887A1 (en) 2023-06-22
CN115460941A (zh) 2022-12-09

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