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WO2023117428A1 - Ensemble de chauffage par induction pour un dispositif de génération d'aérosol - Google Patents

Ensemble de chauffage par induction pour un dispositif de génération d'aérosol Download PDF

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Publication number
WO2023117428A1
WO2023117428A1 PCT/EP2022/084792 EP2022084792W WO2023117428A1 WO 2023117428 A1 WO2023117428 A1 WO 2023117428A1 EP 2022084792 W EP2022084792 W EP 2022084792W WO 2023117428 A1 WO2023117428 A1 WO 2023117428A1
Authority
WO
WIPO (PCT)
Prior art keywords
susceptor
aerosol generating
openings
induction heating
heating assembly
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/EP2022/084792
Other languages
English (en)
Inventor
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 WO2023117428A1 publication Critical patent/WO2023117428A1/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
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • 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
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • 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 generally to an induction heating assembly for an aerosol generating device, and more particularly to an induction heating assembly for an aerosol generating device for heating an aerosol generating substrate to generate an aerosol for inhalation by a user.
  • Embodiments of the present disclosure also relate to an aerosol generating device.
  • Such devices can use one of a number of different approaches to provide heat to the substrate.
  • One such approach is to provide an aerosol generating device which employs an induction heating system.
  • a susceptor inductively couples with the electromagnetic field and generates heat, which is transferred, for example by conduction, to the substrate and an aerosol is generated as the substrate is heated for inhalation by a user of the device.
  • a shortcoming of the use of an induction heating system is that the generation of heat caused by the inductive coupling between the induction coil and the susceptor may be inefficient. There is, therefore, a need to address this shortcoming.
  • an induction heating assembly for an aerosol generating device, the induction heating assembly comprising: an induction coil; a heating compartment for receiving an aerosol generating substrate; a susceptor assembly, wherein the susceptor assembly comprises: a peripheral susceptor, wherein the peripheral susceptor is disposed in the heating compartment and arranged such that in use an aerosol generating substrate received in the heating compartment is surrounded by the peripheral susceptor; wherein the peripheral susceptor comprises: a susceptor tube having a tube wall, wherein the susceptor tube is substantially cylindrical and open-ended, wherein openings extend through the tube wall, wherein the openings are arranged in rows, each row extending around the circumference of the susceptor tube.
  • eddy currents induced in the peripheral susceptor by the induction coil can flow around the entire circumference of the susceptor tube which results in more efficient heat generation. Vaporisation of the aerosol generating substrate is facilitated by airflow through the openings. More efficient heat generation and improved vaporisation can allow for the design of smaller devices with reduced power consumption.
  • the openings in adjacent rows may be staggered.
  • the openings in each row may be uniformly spaced apart.
  • the openings may be distributed over the majority of the tube wall. Accordingly, in use airflow through the openings is evenly distributed about the aerosol generating substrate which increases the amount of vapour generated.
  • the rows may be spaced apart.
  • the rows may be uniformly spaced apart.
  • an uninterrupted path is defined through the material of the susceptor tube between respective adjacent rows of openings, each uninterrupted path extending around the circumference of the susceptor tube.
  • the peripheral susceptor may be arranged such that in use eddy currents induced in the peripheral susceptor by inductive coupling with the induction coil flow around respective uninterrupted paths. In use, eddy currents induced in the peripheral susceptor by the induction coil can flow around the uninterrupted paths directly around the entire circumference of the susceptor tube which further improves the efficiency of heat generation.
  • the openings may be elongated in a direction perpendicular to a longitudinal axis of the susceptor tube.
  • the openings are elliptical shaped openings, wherein the elliptical shaped openings are arranged such that the greatest distance across the elliptical shaped openings is perpendicular to a longitudinal axis of the susceptor tube.
  • Elongated openings, for instance elliptical shaped openings, orientated to have a greatest distance across the openings perpendicular to the longitudinal axis of the susceptor tube allow direct and uninterrupted paths to be defined through the material of the susceptor tube between respective adjacent rows but without reducing the size or number of openings which would otherwise reduce airflow to the aerosol generating substrate.
  • the peripheral susceptor may comprises a metal selected from the group consisting of mild steel, stainless steel and low carbon stainless steel.
  • the susceptor assembly further comprises a central susceptor disposed in the heating compartment, wherein the peripheral susceptor is arranged spaced apart from and around the central susceptor such that an aerosol generating substrate received in the heating compartment is disposed between the central susceptor and the peripheral susceptor.
  • An airflow channel may fluidly connect an air inlet with the heating compartment enabling air to be drawn into a central portion of the heating compartment by passing through the openings extending through the tube wall of the peripheral susceptor.
  • the aerosol generating substrate may form part of an aerosol generating article, preferably a hollow aerosol generating article.
  • an aerosol generating device comprising an induction heating assembly according to any of the preceding paragraphs.
  • Figure 1 is a diagrammatic cross-sectional view of an aerosol generating device comprising a first example of an induction heating assembly and showing an aerosol generating substrate
  • Figure 2 is a diagrammatic cross-sectional view of the aerosol generating device of Figure 1, showing the aerosol generating substrate positioned in a heating compartment of the induction heating assembly;
  • Figure 3 is a diagrammatic illustration of a susceptor being inductively heated by an induction coil
  • Figure 4 is a perspective view of a first example of a susceptor
  • Figure 5 is a diagrammatic cross-sectional view of a second example of a susceptor
  • Figure 6 is a diagrammatic cross-sectional view of an aerosol generating device comprising a second example of an induction heating assembly and showing an aerosol generating substrate
  • Figure 7 is a diagrammatic cross-sectional view of the aerosol generating device of Figure 6, showing the aerosol generating substrate positioned in a heating compartment of the induction heating assembly.
  • an aerosol generating device 100 comprising a first example of an induction heating assembly 10 according to the present disclosure.
  • the aerosol generating device 100 may equally be referred to as a “heated tobacco device”, a “heat-not-bum tobacco device”, a “device for vaporising tobacco products”, and the like, with this being interpreted as a device suitable for achieving these effects.
  • the features disclosed herein are equally applicable to devices which are designed to vaporise any aerosol generating substrate.
  • the aerosol generating device 100 is a hand-held, portable, device, by which it is meant that a user is able to hold and support the device unaided, in a single hand.
  • the aerosol generating device 100 has a first (or proximal) end 52 and a second (or distal) end 54 and comprises a device housing 56.
  • the aerosol generating device 100 includes a controller 58.
  • the aerosol generating device 100 may include a user interface for controlling the operation of the aerosol generating device 100 via the controller 58.
  • the controller 58 is configured to detect the initiation of use of the aerosol generating device 100 in response to a user input, such as a button press to activate the aerosol generating device 100, or in response to a detected airflow through the aerosol generating device 100.
  • a user input such as a button press to activate the aerosol generating device 100
  • an airflow through the aerosol generating device 100 is indicative of a user inhalation or ‘puff .
  • the aerosol generating device 100 may, for example, include a puff detector, such as an airflow sensor (not shown), to detect an airflow through the aerosol generating device 100.
  • the controller 58 includes electronic circuitry.
  • the aerosol generating device 100 includes a power source 60, such as a battery.
  • the power source 60 and the electronic circuitry may be configured to operate at a high frequency.
  • the power source 60 and the electronic circuitry may be configured to operate at a frequency of between approximately 80 kHz and 500 kHz, possibly between approximately 150 kHz and 250 kHz, and possibly at approximately 200 kHz.
  • the power source 60 and the electronic circuitry could be configured to operate at a higher frequency, for example in the MHz range, if required.
  • the induction heating assembly 10 comprises a heating compartment 14 for receiving an aerosol generating substrate 16. Accordingly, the heating compartment 14 is arranged to receive an aerosol generating substrate 16. In some examples, the heating compartment 14 has a substantially cylindrical cross-section. The heating compartment 14 defines a cavity.
  • the heating compartment 14 has a first end 62 and a second end 64.
  • the heating compartment 14 includes an opening 66 at the first end 62 for receiving an aerosol generating substrate 16.
  • the heating compartment 14 includes a substantially cylindrical side wall 68, i.e., a side wall 68 which has a substantially circular cross-section.
  • the aerosol generating substrate 16 may be any type of solid or semi-solid material.
  • Example types of aerosol generating solids include powder, granules, pellets, shreds, strands, particles, gel, strips, loose leaves, cut leaves, cut filler, porous material, foam material or sheets.
  • the aerosol generating substrate 16 may comprise plant derived material and in particular, may comprise tobacco. It may advantageously comprise reconstituted tobacco.
  • the aerosol generating substrate 16 may comprise an aerosol -former.
  • aerosolformers include polyhydric alcohols and mixtures thereof such as glycerine or propylene glycol.
  • the aerosol generating substrate 16 may comprise an aerosol-former content of between approximately 5% and approximately 50% on a dry weight basis.
  • the aerosol generating substrate 16 may comprise an aerosol-former content of between approximately 10% and approximately 20% on a dry weight basis, and possibly approximately 15% on a dry weight basis.
  • the aerosol generating substrate 16 may release volatile compounds.
  • the volatile compounds may include nicotine or flavour compounds such as tobacco flavouring.
  • the aerosol generating substrate 16 is comprised in an aerosol generating article 50. Accordingly, the aerosol generating substrate 16 forms part of an aerosol generating article 50.
  • the shape of the aerosol generating article 50 corresponds to the shape of the heating compartment 14.
  • the aerosol generating article 50 may be generally cylindrical or rod-shaped.
  • the aerosol generating article 50 may be formed substantially in the shape of a stick, and may broadly resemble a cigarette, having a tubular region with an aerosol generating substrate 16 arranged in a suitable manner.
  • the aerosol generating article 50 is a disposable and replaceable article which may, for example, contain tobacco as the aerosol generating substrate 16.
  • the aerosol generating article 50 has a first end 70 (or mouth end), a second end 72, and comprises a filter 74 at the first end 70.
  • the filter 74 acts as a mouthpiece and may comprise an air-permeable plug, for example comprising cellulose acetate fibres.
  • the aerosol generating substrate 16 and filter 74 may be circumscribed by a paper wrapper and may, thus, be embodied as an aerosol generating article 50.
  • the paper wrapper may be permeable, or at least semi-permeable.
  • the paper wrapper may be configured such that air can pass therethrough.
  • One or more vapour collection regions, cooling regions, and other structure may also be included in some designs.
  • a user inserts an aerosol generating article 50 through the opening 66 into the heating compartment 14, so that the second end 72 of the aerosol generating article 50 is positioned at the second end 64 of the heating compartment 14 and so that the filter 74 at the first end 70 of the aerosol generating article 50 projects from the first end 62 of the heating compartment 14 to permit engagement by a user’s lips.
  • This arrangement is illustrated in Figure 2.
  • the induction heating assembly 10 further comprises an induction coil 12 and a susceptor assembly 18.
  • the susceptor assembly 18 comprises a peripheral susceptor 20.
  • the peripheral susceptor 20 is disposed in the heating compartment 14 and arranged such that in use an aerosol generating substrate 16 received in the heating compartment 14 is surrounded by the peripheral susceptor 20, as illustrated in Figure 2.
  • the induction coil 12 is arranged to be energised to generate an alternating electromagnetic field 48.
  • an alternating electromagnetic field 48 With the application of an alternating electromagnetic field 48 in its vicinity, the peripheral susceptor 20 generates heat due to eddy currents 46 and magnetic hysteresis losses resulting in a conversion of energy from electromagnetic to heat.
  • the heat from the peripheral susceptor 20 is transferred to the aerosol generating substrate 16 of an aerosol generating article 50 positioned in the heating compartment 14, for example by conduction, radiation and convection, to heat the aerosol generating substrate 16 (without burning the aerosol generating substrate 16) and thereby generate a vapour which cools and condenses to form an aerosol for inhalation by a user of the aerosol generating device 100, for instance, through the filter 74.
  • vapour is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapour can be condensed to a liquid by increasing its pressure without reducing the temperature
  • aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas.
  • the induction coil 12 can be energised by the power source 58 and controller 60.
  • the induction coil 12 may comprise a Litz wire or a Litz cable. It will, however, be understood that other materials could be used.
  • the induction coil 12 extends around the heating compartment 14. Accordingly, the induction coil 12 is annular. In the illustrated example, the induction coil 12 is substantially helical in shape. In some examples, the circular cross-section of the helical induction coil 12 facilitates the insertion of an aerosol generating substrate 16, or for example an aerosol generating article 50 including the aerosol generating substrate 16, into the heating compartment 14 and ensures uniform heating of the aerosol generating substrate 16.
  • the peripheral susceptor 20 comprises an electrically conductive material.
  • the peripheral susceptor 20 may comprise one or more, but not limited to, of graphite, molybdenum, silicon carbide, niobium, aluminium, iron, nickel, nickel containing compounds, titanium, mild steel, stainless steel, low carbon steel and alloys thereof, e.g., nickel chromium or nickel copper, and composites of metallic materials.
  • the peripheral susceptor 20 comprises a metal selected from the group consisting of mild steel, stainless steel and low carbon stainless steel.
  • the induction coil 12 may be arranged to operate in use with an alternating electromagnetic field having a magnetic flux density of between approximately 20mT and approximately 2.0T at the point of highest concentration.
  • the peripheral susceptor 20 comprises a susceptor tube 22 having a tube wall 26.
  • the susceptor tube 22 is substantially cylindrical and open-ended.
  • the peripheral susceptor 20 is elongate and hollow.
  • the peripheral susceptor 20 therefore has a wrap-around structure defined by the susceptor tube 22.
  • the peripheral susceptor 20 has a ring-shaped crosssection. Eddy currents induced in the peripheral susceptor 20 by the induction coil 12 can flow around the entire circumference of the susceptor tube 22 which results in more efficient heat generation. More efficient heat generation can allow for the design of smaller devices 100 with reduced power consumption.
  • the induction coil 12 induces a flow of electrons in the same direction as the induction coil 12.
  • the maximum efficiency is achieved by not interrupting the flow of current in the peripheral susceptor 22 so it can continue its flow circumferentially.
  • the susceptor tube 22 may have an enlarged profiled end portion. In such examples, the susceptor tube 22 may be flared outwards towards the first end 52 of the device 100 so that the aerosol generating article can easily be inserted into the heating compartment 14.
  • Openings 24 extend through the tube wall 26 of the peripheral susceptor 20.
  • the openings 24 are apertures, through-holes, or perforations. Accordingly, the tube wall 26 comprises a plurality of openings 24. Vaporisation of the aerosol generating substrate 16 is facilitated by airflow through the openings 24. Improved vaporisation can allow for the design of smaller devices 100 with reduced power consumption.
  • the openings are substantially circular shaped openings.
  • the openings 24 may have a different shape, for instance, square shaped openings.
  • the openings 24 are distributed over the majority of the tube wall 26. Accordingly, in use airflow through the openings 24 is evenly distributed about the aerosol generating substrate 16 which increases the amount of vapour generated. Accordingly, there is a more homogeneous air supply to the aerosol generating substrate 16.
  • the aerosol generating substrate 16 is circumscribed by a paper wrapper and, thus, embodied as an aerosol generating article 50.
  • the paper wrapper is permeable, or at least semi -permeable. In such examples, in use, airflow through the openings 24 passes through the permeable or at least semi-permeable paper wrapper.
  • the openings 24 are arranged in rows 28. Each row 28 extends around the circumference of the susceptor tube 22. Accordingly, the openings 24 are arranged in circumferentially adjacent rows 28.
  • the openings 24 in adjacent rows 28 are staggered. Accordingly, the openings 24 in each row are axially offset from the openings 12 in circumferentially adjacent rows to provide a staggered arrangement of the openings 24.
  • the staggered arrangement of openings 24 facilitates an even distribution of airflow about the aerosol generating substrate 16.
  • the openings 24 in each row 28 are uniformly spaced apart. In the illustrated example, the rows 28 are uniformly spaced apart. The uniform spacing of openings 24 and/or rows 28 facilitates an even distribution of airflow about the aerosol generating substrate 16.
  • peripheral susceptor 32 is similar to the peripheral susceptor 20 described above and corresponding elements are designated using the same reference numerals.
  • An uninterrupted path 30 is defined through the material of the susceptor tube 22 between respective adjacent rows 28 of openings 24. Each uninterrupted path 30 extends around the circumference of the susceptor tube 22. Accordingly, each uninterrupted path 30 extends circumferentially. In the illustrated example, each uninterrupted path 30 extends directly around the circumference of the susceptor tube 22.
  • the peripheral susceptor 32 is arranged such that in use eddy currents 46 induced in the peripheral susceptor 32 by inductive coupling with the induction coil 12 flow around respective uninterrupted paths 30. Eddy currents induced in the peripheral susceptor 20 by the induction coil 12 can flow around the uninterrupted paths 30 directly around the entire circumference of the susceptor tube 22 which further improves the efficiency of heat generation.
  • the openings 24 in the second example of the peripheral susceptor 32 are elongated in a direction perpendicular to the longitudinal axis 34 of the susceptor tube 22. Accordingly, the distance across the openings 24 is greatest in a direction extending around the circumference of the susceptor tube 22.
  • the openings 24 are elliptical shaped openings 36.
  • the elliptical shaped openings 36 are arranged such that the greatest distance across the elliptical shaped openings 36 is perpendicular to the longitudinal axis 34 of the susceptor tube 22.
  • the openings 24 may be rectangular shaped openings.
  • the rectangular shaped openings may have two longer sides and two shorter sides.
  • the rectangular shaped openings are arranged such that the greatest distance across the rectangular shaped openings is perpendicular to the longitudinal axis 34 of the susceptor tube 22.
  • Elongated openings 24, for instance elliptical or rectangular shaped openings, orientated to have a greatest distance across the openings 24 perpendicular to the longitudinal axis 34 of the susceptor tube 22 allow direct and uninterrupted paths to be defined through the material of the susceptor tube 22 between respective adjacent rows 28. This is achieved without reducing the size or number of openings 24 which would otherwise reduce airflow to the aerosol generating substrate 16.
  • FIG. 6 there is shown a second example of an induction heating assembly 76 according to the present disclosure.
  • the induction heating assembly 76 is similar to the induction heating assembly 10 described above and corresponding elements are designated using the same reference numerals.
  • the induction heating assembly 76 is also configured for use with a vapour generating device 100 as described above.
  • the susceptor assembly 18 of the second example of an induction heating assembly 76 further comprises a central susceptor 38 disposed in the heating compartment 14.
  • the peripheral susceptor 20 is arranged spaced apart from and around the central susceptor 38 such that an aerosol generating substrate 16 received in the heating compartment 14 is disposed between the central susceptor 38 and the peripheral susceptor 20.
  • the aerosol generating article 50 comprising the aerosol generating substrate 16 is hollow so that it can be sandwiched between the central susceptor 38 and the peripheral susceptor 20. Accordingly, in such examples an outer surface of the aerosol generating substrate 16 is heated by the peripheral susceptor 20 and an inner surface of the aerosol generating substrate 16 is heated by the central susceptor 38.
  • the peripheral susceptor 20 and central susceptor 38 are arranged around a central longitudinal axis of the heating compartment 14. Accordingly, the peripheral susceptor 20 and the central susceptor 38 are coaxially arranged. The central susceptor 38 is arranged within the peripheral susceptor 20.
  • the peripheral susceptor 20 and central susceptor 38 may be arranged to inductively couple with the same induction coil 12, i.e., with a common induction coil 12. Alternatively, the peripheral susceptor 20 and central susceptor 38 may be arranged to inductively couple with different respective induction coils 12.
  • the central susceptor 38 may comprise a susceptor tube 78 having a tube wall 80. Openings (i.e., perforations) may extend through the tube wall 80 (not shown).
  • the susceptor tube 78 may have a ring-shaped cross-section. Accordingly, the central susceptor 38 may be porous. Alternatively, in some examples the central susceptor 38 may comprise at least two susceptor parts (not show).
  • the central portion 44 is defined within the central susceptor 38.
  • airflow may be enabled through the central susceptor 38 into the central portion 44.
  • airflow may be through openings (i.e., perforations) in the tube wall 80 of the central susceptor 38.
  • airflow may be through gaps between the at least two susceptor parts of the central susceptor 38. In such examples, air flowing through the substrate 16 subsequently flows through the central susceptor 38 into the central portion 44.
  • an airflow channel 40 fluidly connects an air inlet 42 with the heating compartment 14.
  • air from the surrounding environment is drawn into a central portion 44 of the heating compartment 14 by passing through the openings 24 which extend through the tube wall 26 of the peripheral susceptor 20. Accordingly, in use, air flows through the openings 24 directly to the substrate 16.
  • the substrate 16 may be porous such that air flows through the substrate 16 into the central portion 44.
  • the vaporisation of the aerosol generating substrate 16 is facilitated by the addition of air from the surrounding environment through the air inlet 42.
  • the aerosol generating substrate 16 is circumscribed by a permeable, or at least semi-permeable paper wrapper, in use, airflow through the openings 24 passes through the permeable or at least semi-permeable paper wrapper.
  • the central portion 44 of the heating compartment 14 extends along a longitudinal central axis of the heating compartment 14.
  • a second airflow channel fluidly connects a second air inlet directly with the central portion 44 (not shown).
  • the vaporisation of the aerosol generating substrate 16 is further facilitated by the addition of air from the surrounding environment directly to the central portion 44.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne un ensemble de chauffage par induction (10) pour un dispositif de génération d'aérosol (100). L'ensemble de chauffage par induction (10) comprend une bobine d'induction (12), un compartiment de chauffage (14) destiné à recevoir un substrat de génération d'aérosol (16), et un ensemble suscepteur (18). L'ensemble suscepteur (18) comprend un suscepteur périphérique (20). Le suscepteur périphérique (20) est disposé dans le compartiment de chauffage (14) et agencé de telle sorte que, lors de l'utilisation, un substrat de génération d'aérosol (16) reçu dans le compartiment de chauffage (14) soit entouré par le suscepteur périphérique (20). Le suscepteur périphérique (20) comprend un tube suscepteur (22) ayant une paroi de tube (26). Le tube suscepteur (22) est sensiblement cylindrique et ouvert aux extrémités. Des ouvertures (24) s'étendent dans la paroi de tube (26), les ouvertures (24) étant disposées en rangées (28), chaque rangée (28) s'étendant autour de la circonférence du tube suscepteur (22).
PCT/EP2022/084792 2021-12-22 2022-12-07 Ensemble de chauffage par induction pour un dispositif de génération d'aérosol Ceased WO2023117428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21217149.0 2021-12-22
EP21217149 2021-12-22

Publications (1)

Publication Number Publication Date
WO2023117428A1 true WO2023117428A1 (fr) 2023-06-29

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3217817A1 (fr) * 2014-11-11 2017-09-20 JT International SA Inhalateurs de vapeur électroniques
WO2019030168A1 (fr) * 2017-08-09 2019-02-14 Philip Morris Products S.A. Dispositif générateur d'aérosol doté d'un dispositif de chauffage par induction avec une bobine d'induction conique
CN209376694U (zh) * 2018-11-27 2019-09-13 深圳市新宜康科技股份有限公司 基于多孔发热网的陶瓷雾化芯
WO2021001267A1 (fr) * 2019-07-04 2021-01-07 Philip Morris Products S.A. Agencement de chauffage par induction avec élément chauffant par induction segmenté
WO2021249912A1 (fr) * 2020-06-10 2021-12-16 Jt International Sa Cartouche pour un dispositif de génération de vapeur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3217817A1 (fr) * 2014-11-11 2017-09-20 JT International SA Inhalateurs de vapeur électroniques
WO2019030168A1 (fr) * 2017-08-09 2019-02-14 Philip Morris Products S.A. Dispositif générateur d'aérosol doté d'un dispositif de chauffage par induction avec une bobine d'induction conique
CN209376694U (zh) * 2018-11-27 2019-09-13 深圳市新宜康科技股份有限公司 基于多孔发热网的陶瓷雾化芯
WO2021001267A1 (fr) * 2019-07-04 2021-01-07 Philip Morris Products S.A. Agencement de chauffage par induction avec élément chauffant par induction segmenté
WO2021249912A1 (fr) * 2020-06-10 2021-12-16 Jt International Sa Cartouche pour un dispositif de génération de vapeur

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