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WO2020212009A1 - Élément chauffant comprenant une ouverture de passage excentrique pour un système de fourniture d'un aérosol inhalable - Google Patents

Élément chauffant comprenant une ouverture de passage excentrique pour un système de fourniture d'un aérosol inhalable Download PDF

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Publication number
WO2020212009A1
WO2020212009A1 PCT/EP2020/055538 EP2020055538W WO2020212009A1 WO 2020212009 A1 WO2020212009 A1 WO 2020212009A1 EP 2020055538 W EP2020055538 W EP 2020055538W WO 2020212009 A1 WO2020212009 A1 WO 2020212009A1
Authority
WO
WIPO (PCT)
Prior art keywords
base body
heating element
element according
heating
heating structure
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
PCT/EP2020/055538
Other languages
German (de)
English (en)
Inventor
Matthias Muziol
Thomas Loose
Karlheinz Wienand
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.)
Yageo Nexensos GmbH
Original Assignee
Heraeus Nexensos GmbH
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 Heraeus Nexensos GmbH filed Critical Heraeus Nexensos GmbH
Publication of WO2020212009A1 publication Critical patent/WO2020212009A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material

Definitions

  • Heating element with eccentric through-opening for a system for providing an inhalable aerosol
  • the present invention relates to a heating element for a system for providing an inhalable aerosol, having a base body having a thermally conductive material, the base body being designed cylindrically with a round, eccentrically arranged through opening along an expansion axis of the base body for receiving a substance for generating the inhalable material Aerosols.
  • the present invention also relates to a system for providing an inhalable aerosol, as well as an evaporator unit for such a system.
  • Systems with heating elements for providing inhalable aerosols which heat a substance to form the aerosol are known from the prior art. These systems are often referred to as electronic cigarettes or just e-cigarettes. Such systems typically have a mouthpiece and an evaporator unit which includes a heating element.
  • the substance can comprise a nicotine-containing product such as tobacco or a tobacco-like product and can be liquid, gaseous or solid. However, a substance without nicotine can also be provided.
  • the aerosol that forms can then be directed past a nicotine-containing or nicotine-mixed body, or flow through this body in order to add nicotine to the aerosol.
  • the substance is not burned as in a conventional cigarette, but only heated in order to obtain the inhalable aerosol.
  • the heating element here heats the substance in a temperature range of approximately 200 ° C. to 400 ° C., so that the inhalable aerosol is created, which can be inhaled by the user of the system.
  • lance-shaped, tubular or rod-shaped heating elements are known from the prior art.
  • the substance that forms the aerosol is brought into contact with these heating elements.
  • US5665262A describes a tubular heating element which is formed from a metal sleeve, an insulation layer on the metal sleeve and a resistance element applied thereon.
  • JP2014216287A describes a heating element which is formed from a thin aluminum tube with an oxidized surface. A heating wire is wrapped around the thin aluminum tube.
  • US20170215474A1 describes a tubular heating element with a perforated aluminum cylinder as a thermal contact mediator between a NiCd heating wire that is wound around the aluminum cylinder.
  • the tubular heating element is filled with the substance to form the aerosol.
  • DE102016115574A1 describes a tubular heating element with a carrier material made of glass or a glass ceramic and with metallic heating conductor structures.
  • US6222166B1 describes a heating element made of a metal with a high thermal expansion coefficient of> 16x10E-16 / ° C, e.g. the material can be an aluminum material with a dielectric layer, e.g. AI203, and a thick film resistance heater applied to it.
  • the heating elements known from the prior art have the disadvantage that these heating elements have a long heating time and unevenly heat the substance to form the aerosol.
  • the object of the present invention is therefore to provide an improved heating element which overcomes the disadvantages of the prior art.
  • a heating element that can be manufactured inexpensively, has a short heating time and uniformly heats the substance to form the aerosol.
  • the heating element according to the invention for a system for providing an inhalable aerosol has for this purpose: a base body comprising a thermally conductive material, wherein the base body is cylindrical with a round, eccentrically arranged through opening along an expansion axis of the base body for receiving a substance for generating the inhalable aerosol; and
  • a heating structure arranged on an outer surface of the base body, the heating structure being arranged at least partially longitudinally along the expansion axis of the base body on a region of the base body with maximum wall thickness.
  • the base body ideally has high temperature stability and high thermal conductivity. Furthermore, the surface of the base body can have an electrically insulating material with good electrically insulating properties.
  • the cylindrical base body can have a diameter of less than or equal to 20 mm.
  • the round through opening can extend along the expansion axis from a first end of the base body to a second end of the base body.
  • the round through opening is eccentric, i. the center of the through opening is arranged at a distance from the center of the base body.
  • base body can be understood to mean an elongated hollow body with an uneven wall thickness.
  • heating structure can be understood to mean a heating resistor which is arranged on the outer surface of the base body and, in its simplest embodiment, has a metal wire, also called a heating conductor.
  • the heating structure can also be designed in the form of a conductor track which, for example, runs in a meandering manner. When a current flows through the conductor track, the intrinsic resistance of the conductor track generates heat.
  • the heating power of the heating structure can be determined depending on the current flowing through the conductor track.
  • the heating structure is arranged on the outer surface of the base body in an area along the circumference of the base body with a maximum wall thickness of the base body between the outer surface and the inner surface.
  • the heating structure can be arranged on the base body, for example, by screen printing and / or tape casting, or as a free-standing structure.
  • the substance for forming the aerosol can be arranged on the inner surface of the base body or in the passage opening.
  • the invention is based on the surprising finding that, because of the eccentrically arranged passage opening, the substance for forming the aerosol can be heated more evenly and a heating element with a shorter heating time is provided.
  • the thermally conductive material comprises a metal, a metal alloy or a ceramic, in particular silver, aluminum, aluminum oxide, or steel.
  • the heating structure is arranged on a maximum of 20% of a circumferential surface of the base body.
  • the heating structure is arranged on the base body on the area with maximum wall thickness and adjacent areas with decreasing wall thickness. Tests have shown that the heating structure does not have to be arranged over the entire surface of the base body, but that an arrangement of the heating structure on 20% of the circumferential surface is sufficient to achieve sufficient and even heating of the substance to generate the inhalable aerosol.
  • the eccentric through opening is arranged in such a way that the minimum wall thickness of the base body corresponds to 5% -50% of the average wall thickness of the base body.
  • a flat section is arranged on the outer surface of the base body in the region of the base body with maximum wall thickness for arranging the heating structure on the base body.
  • a flat section or a flat surface is produced in the outer surface of the base body in the area with maximum wall thickness by removing or pressing in material of the base body, so that after the introduction of the flat surface, two areas with maximum wall thickness on the sides of the flat surface.
  • the flat section extends along the extension direction from the first end of the main body to the second end of the main body.
  • the heating structure can advantageously be arranged on the flat section in a particularly simple and secure manner. This also advantageously enables good thermal contact between the sleeve and the chip.
  • the flat section is arranged longitudinally on the outer surface of the base body and comprises a curve chord.
  • the heating structure is:
  • the heating structure can be arranged particularly quickly and efficiently on the base body by means of a printing or vapor deposition process.
  • the conductor track is arranged as a structured metal foil
  • the structured metal foil can have a meander and at least a partial area of a conductor track of the meander can have a rounding that corresponds to a rounding of an outer diameter of the base body.
  • the electrical insulation layer comprises a metal oxide, a ceramic or a glass.
  • the heating structure is applied as a thin-film structure on a carrier substrate.
  • the carrier substrate can comprise aluminum oxide.
  • chips that have already been manufactured comprising at least one heating structure and optionally an additional temperature sensor, which are located on a common, rigid and flat carrier substrate, can advantageously be simply connected to the base body.
  • the heating element has at least one temperature sensor, arranged on the base body next to the heating structure.
  • the temperature sensor can for example be connected to evaluation electronics and transmit the current temperature of the heating structure to the evaluation electronics.
  • the temperature sensor has at least one supply line, the supply line being designed as a flat ribbon supply line or wire supply line, and wherein the supply line comprises at least a platinum material, a nickel material, an iron material, a copper material or a brass material, the supply line with gold is preferred, Silver or platinum coated.
  • the temperature sensor described in this example with flat leads advantageously allows a particularly space-saving arrangement.
  • the heating structure is designed in a meandering shape and has a structured steel alloy, a nickel-iron alloy, a nickel-chromium alloy or a platinum alloy, in particular with a resistance of 0.4 to 3 ohms, preferably 0.6 ohms .
  • the invention also proposes an evaporator unit for a system for providing an inhalable aerosol, having a heating element according to the invention.
  • the invention also proposes a system for providing an inhalable aerosol, having a heating element according to the invention.
  • Figures 1a and 1b a schematic perspective view and a schematic
  • Figures 2a and 2b a schematic perspective view and a schematic
  • FIG. 3 shows a schematic cross-sectional view of a heating element according to a further embodiment of the invention.
  • FIGS. 1a and 1b show a heating element 1 for a system for providing an inhalable aerosol, as is known from the prior art.
  • the heating element 1 comprises a tubular base body 4 made of a thermally conductive material and a heating structure 6 arranged on the base body 4.
  • the heating structure 6 is arranged on the outside of the base body 4.
  • the substance for forming the aerosol can be arranged in the interior of the tubular base body 4.
  • the round through opening extends along the expansion axis from a first end of the base body 4 to a second end of the base body 4.
  • the round through opening is in the middle of the Base body 4 arranged, ie the center point of the through opening is also the center point of the base body 4.
  • the wall thickness is therefore the same along the circumference of the base body 4.
  • the heating element 1 shown in FIGS. 1 a and 1 b has the disadvantage that this heating element 1 has a long heating time and the substance for forming the aerosol is heated unevenly.
  • FIGS. 1a and 1b show a schematic perspective view and a schematic cross-sectional view of a heating element 10 according to an embodiment of the invention.
  • the heating element 10 shown differs from that shown in FIGS. 1a and 1b Heating element 10 in that the through opening 12 is arranged eccentrically or off-center in the base body 14.
  • the through-opening 12 is typically arranged in a range from 0.1 to 0.5 mm off-center, the base body 14 having an outer diameter in a range from 6 to 10 mm.
  • the base body 14 has a length and an outer diameter of 8 mm and a through opening 12 with a diameter of 7.1 mm, which is arranged 0.3 mm off the center.
  • the heating structure 16 shown runs along the extension direction of the base body 14 and in the embodiment shown has a width of 3 mm (shown in dashed lines in FIG. 2b). In embodiments of the invention, the heating structure 16 is arranged on a maximum of 20% of a circumferential surface of the base body 14.
  • the terms peripheral surface, perimeter, and outer surface 18a can be used interchangeably.
  • the heating structure 16 comprises a metal wire, also called a heating conductor.
  • the heating structure 16 can also be designed in the form of a conductor track which, for example, runs in a meandering manner. When a current flows through the conductor track, the intrinsic resistance of the conductor track generates heat.
  • the heating power of the heating structure 16 can be determined as a function of the current flowing through the conductor track.
  • the heating structure 16 is arranged on the outer surface of the base body 14 in an area along the circumference of the base body 14 with a maximum wall thickness of the base body 14 between the outer surface 18a and an inner surface 18b of the base body 14.
  • Figure 3 shows a schematic cross-sectional view of a heating element 10 'according to a further embodiment of the invention.
  • a flat section 20 ' is arranged on the outer surface 18a' of the base body 14 'with through opening 12' in the region of the base body 14 'with maximum wall thickness for the simplified arrangement of the heating structure 16' on the base body 14 '.
  • the flat section can be created, for example, by removing or pressing in material from the base body 14 '. After the flat section 20 'has been introduced, the area with the maximum wall thickness disappears, but two areas with maximum wall thickness are created on the sides of the flat section 20'.
  • the flat section 20 ′ extends along the direction of extent from the first end of the base body 14 ′ to the second end of the base body 14 ′.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention concerne un élément chauffant pour un système de fourniture d'un aérosol inhalable, présentant : un corps de base comprenant un matériau thermoconducteur, le corps de base étant conçu cylindrique avec une ouverture de passage ronde excentrique le long d'un axe d'extension du corps de base pour la réception d'une substance pour la génération de l'aérosol inhalable. Une structure de chauffage est disposée sur la face extérieure du corps de base, la structure de chauffage étant au moins partiellement disposée longitudinalement le long de l'axe d'extension du corps de base sur une zone du corps de base ayant une épaisseur de paroi maximale.
PCT/EP2020/055538 2019-04-15 2020-03-03 Élément chauffant comprenant une ouverture de passage excentrique pour un système de fourniture d'un aérosol inhalable Ceased WO2020212009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019001693.7U DE202019001693U1 (de) 2019-04-15 2019-04-15 Heizelement mit exzentrischer Durchgangsöffnung für ein System zur Bereitstellung eines inhalierbaren Aerosols
DE202019001693.7 2019-04-15

Publications (1)

Publication Number Publication Date
WO2020212009A1 true WO2020212009A1 (fr) 2020-10-22

Family

ID=67145023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/055538 Ceased WO2020212009A1 (fr) 2019-04-15 2020-03-03 Élément chauffant comprenant une ouverture de passage excentrique pour un système de fourniture d'un aérosol inhalable

Country Status (2)

Country Link
DE (1) DE202019001693U1 (fr)
WO (1) WO2020212009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021100441A1 (de) 2021-01-12 2022-07-14 Smokerstore Gmbh Erfassung der Temperatur eines Heizelements einer E-Zigarette

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665262A (en) 1991-03-11 1997-09-09 Philip Morris Incorporated Tubular heater for use in an electrical smoking article
US6222166B1 (en) 1999-08-09 2001-04-24 Watlow Electric Manufacturing Co. Aluminum substrate thick film heater
JP2014216287A (ja) 2013-04-30 2014-11-17 清水　和彦 無煙喫煙冶具用ヒーター
EP3020292A1 (fr) * 2014-11-14 2016-05-18 Shenzhen First Union Technology Co., Ltd. Dispositif d'atomisation et cigarette electronique comportant celui-ci
US20170215474A1 (en) 2016-02-02 2017-08-03 Lrider Technology Co.,Ltd Annular stereoscopic-heating electronic cigarette with replaceable inner container
DE102016115574A1 (de) 2016-08-23 2018-04-05 Schott Ag Heizelemente für elektronische Zigaretten
EP3424354A2 (fr) * 2017-10-27 2019-01-09 Shenzhen First Union Technology Co., Ltd. Vaporisateur et ensemble à fumer combiné à basse température

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665262A (en) 1991-03-11 1997-09-09 Philip Morris Incorporated Tubular heater for use in an electrical smoking article
US6222166B1 (en) 1999-08-09 2001-04-24 Watlow Electric Manufacturing Co. Aluminum substrate thick film heater
JP2014216287A (ja) 2013-04-30 2014-11-17 清水　和彦 無煙喫煙冶具用ヒーター
EP3020292A1 (fr) * 2014-11-14 2016-05-18 Shenzhen First Union Technology Co., Ltd. Dispositif d'atomisation et cigarette electronique comportant celui-ci
US20170215474A1 (en) 2016-02-02 2017-08-03 Lrider Technology Co.,Ltd Annular stereoscopic-heating electronic cigarette with replaceable inner container
DE102016115574A1 (de) 2016-08-23 2018-04-05 Schott Ag Heizelemente für elektronische Zigaretten
EP3424354A2 (fr) * 2017-10-27 2019-01-09 Shenzhen First Union Technology Co., Ltd. Vaporisateur et ensemble à fumer combiné à basse température

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021100441A1 (de) 2021-01-12 2022-07-14 Smokerstore Gmbh Erfassung der Temperatur eines Heizelements einer E-Zigarette
WO2022153190A1 (fr) 2021-01-12 2022-07-21 Smokerstore Gmbh Détection de la température d'un élément chauffant d'une cigarette électronique
DE102021100441B4 (de) 2021-01-12 2022-08-04 Smokerstore Gmbh Erfassung der Temperatur eines Heizelements einer E-Zigarette

Also Published As

Publication number Publication date
DE202019001693U1 (de) 2019-06-17

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