WO2015177254A1 - Inductive heating device and system for aerosol-generation - Google Patents

Inductive heating device and system for aerosol-generation Download PDF

Info

Publication number
WO2015177254A1
WO2015177254A1 PCT/EP2015/061199 EP2015061199W WO2015177254A1 WO 2015177254 A1 WO2015177254 A1 WO 2015177254A1 EP 2015061199 W EP2015061199 W EP 2015061199W WO 2015177254 A1 WO2015177254 A1 WO 2015177254A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol
cavity
pin
induction coil
forming
Prior art date
Application number
PCT/EP2015/061199
Other languages
French (fr)
Inventor
Ihar Nikolaevich ZINOVIK
Oleg Mironov
Original Assignee
Philip Morris Products S.A.
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
Priority to DK15724271.0T priority Critical patent/DK3145341T3/en
Priority to LTEP15724271.0T priority patent/LT3145341T/en
Application filed by Philip Morris Products S.A. filed Critical Philip Morris Products S.A.
Priority to PL15724271T priority patent/PL3145341T3/en
Priority to MX2016015138A priority patent/MX2016015138A/en
Priority to RU2016138699A priority patent/RU2674612C2/en
Priority to ES15724271.0T priority patent/ES2682971T3/en
Priority to SG11201605728SA priority patent/SG11201605728SA/en
Priority to EP15724271.0A priority patent/EP3145341B1/en
Priority to CN201580019380.6A priority patent/CN106163309B/en
Priority to US15/121,554 priority patent/US10986869B2/en
Priority to UAA201610214A priority patent/UA120362C2/en
Priority to AU2015261877A priority patent/AU2015261877B2/en
Priority to RS20180841A priority patent/RS57516B1/en
Priority to CA2948727A priority patent/CA2948727A1/en
Priority to JP2016561286A priority patent/JP6684720B2/en
Priority to KR1020237005814A priority patent/KR20230030033A/en
Priority to KR1020167026396A priority patent/KR102516952B1/en
Priority to SI201530312T priority patent/SI3145341T1/en
Publication of WO2015177254A1 publication Critical patent/WO2015177254A1/en
Priority to ZA2016/04363A priority patent/ZA201604363B/en
Priority to PH12016501277A priority patent/PH12016501277B1/en
Priority to IL248951A priority patent/IL248951B/en

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
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • 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
    • 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
    • A24F47/00—Smokers' requisites not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00—Inhalators
    • A61M15/06—Inhaling appliances shaped like cigars, cigarettes or pipes
    • 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
    • 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
    • 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
    • H05B6/36—Coil arrangements
    • 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 invention relates to inductively heatable smoking devices, wherein an aerosol is generated by inductively heating an aerosol-forming substrate.
  • an inductive heating device for aerosol-generation.
  • the device comprises a device housing comprising a cavity having an internal surface for receiving at least a portion of an aerosol-forming insert comprising an aerosol-forming substrate and a susceptor.
  • the device housing further comprises a pin extending into the cavity.
  • the device further comprises an induction coil arranged along the pin and a power source connected to the induction coil and configured to provide a high frequency current to the induction coil.
  • Inductive heating is known to be an efficient way of heating since heat may be generated at the location where it is desired.
  • inductive heating allows for a contactless heating.
  • the induction coil may be kept separate from an aerosol-generating substrate. It may be kept separate from a susceptor provided for being heated by electromagnetic fields generated by the induction coil and for heating the aerosol- forming substrate. This facilitates a cleaning of the device.
  • no residues may condense on the induction coil, which may generate undesirable aerosols upon reuse of the device.
  • the arrangement of the induction coil along a pin, which pin extends into the cavity provided for accommodation of the aerosol-forming insert facilitates a good distribution of heat production in the aerosol-forming substrate.
  • the induction coil may be arranged at a position of the pin and may extend along a length of the pin such as to correspond to the extent of an aerosol-forming substrate provided in the aerosol-forming insert that shall be heated.
  • pin and induction coil are arranged such as to be at least partially surroundable by the aerosol-forming insert comprising the aerosol-forming substrate and the susceptor once the insert is accommodated in the cavity.
  • the device By arranging the induction coil in a center of the device rather than in a circumferential portion of the device, the device may be minimized. No circumferential space is required for the induction coil.
  • magnetic shielding is performed by the aerosol-forming insert or rather the susceptor provided with the insert. By this, no or a neglectable amount of electromagnetic radiation may leave the device and magnetic shielding of the device may be omitted.
  • a central arrangement of the induction coil bears the further advantage that an aerosol-forming substrate to be heated typically has a substantially ring-shaped cross section (or other outer forms but with an actual space for the pin) .
  • a thickness of the aerosol- forming substrate to be penetrated by the electromagnetic field is smaller than with for example entirely cylindrically shaped substrates. This may further support a homogeneous heating and a reduction in energy consumption.
  • the induction coil is arranged within the pin and is not in contact with the cavity.
  • the induction coil and a power source may be kept entirely separated from a cavity for accommodating the aerosol-forming insert. Replacement of an insert may thus be performed without contact to the induction coil, thus without the risk of altering the induction coil or electrical contacts. Also cleaning of the cavity is facilitated. No hard to reach coil windings have to be cleaned, which might otherwise possibly be harmed upon cleaning.
  • the pin may be constructed in a very solid manner. This may avoid the risk of bending or breaking for example an induction coil arranged in the cavity upon repeated introduction of an aerosol- forming insert.
  • a pin may for example also be used to prong an aerosol-forming insert when being inserted into the cavity.
  • a preformed opening in the aerosol-forming insert may be omitted and the insert may simply be pushed onto the pin.
  • the pin may be provided with a pointed distal tip in order to facilitate such a ⁇ pronging' .
  • a pointed tip may in general be provided to facilitate an alignment of the insert upon insertion into the cavity.
  • the induction coil is moulded into the pin.
  • the induction coil is wound around the pin.
  • an energy distribution along an entire cavity or only at a required location in the cavity may be provided.
  • the arrangement of the induction coil outside along the pin may enable a closer arrangement of the induction coil to the aerosol-forming insert.
  • Such an arrangement may be preferred depending on the design of the aerosol-forming insert, for example, if the aerosol-forming insert is a cartridge containing an aerosol-forming liquid.
  • a cartridge housing may serve as wall between induction coil and aerosol-forming substrate such that direct contact of the aerosol-forming substrate with the induction coil may be prevented.
  • the pin and the induction coil are arranged along a central longitudinal axis of the cavity.
  • a central arrangement allows for a regular, symmetric distribution of the electromagnetic field generated by the induction coil inside the cavity, from the magnetic axis of the induction coil to a periphery or circumference of the cavity.
  • a circumferential portion of the inner surface of the cavity or side walls and the pin are of cylindrical shape.
  • the electromagnetic field distribution is basically homogeneous throughout the cavity and thus allows for a symmetric or regular heating of the aerosol-forming insert accommodated in the cavity.
  • two of more induction coils are arranged along the pin and next to each other.
  • control of aerosol generation may be facilitated.
  • a variety of heating possibilities of an aerosol-forming insert accommodated in the cavity is provided.
  • different induction coils may be provided with different amounts of energy. The energy may be provided at different times, for example subsequently.
  • different areas of an aerosol-forming substrate may be heated and to different extents. If for example a tobacco containing aerosol-forming substrate is used, a smoking experience may be enhanced or a nicotine delivery may be altered during smoking.
  • the pin is integrally formed with the device housing. This may facilitate manufacturing of the device by reducing manufacturing step.
  • a separate joint between pin and device housing may be omitted.
  • the device housing as well as the pin is made of a plastics material. Pin and housing may for example be manufactured by injection moulding.
  • an aerosol-generating insert snugly fits into the cavity of the device housing such that it may be held by the internal surface of the cavity, or by the pin or by both.
  • the internal surface of the cavity, the pin or the device housing may also be formed to provide better hold for the inserted insert.
  • the device housing comprises retaining members for holding the aerosol-forming insert in the cavity when the aerosol-forming insert is accommodated in the cavity.
  • Such retaining members may for example be protrusions at the internal surface of the cavity and extending into the cavity.
  • protrusions are arranged in a distal region of the cavity, near or at an insertion opening where an aerosol-forming insert is inserted into the cavity of the device housing.
  • protrusion may have the form of circumferentially running ribs or partial ribs.
  • Protrusions may also serve as aligning members for supporting an introduction of the insert into the cavity.
  • aligning members have the form of longitudinal ribs extending longitudinally along the circumferential portion of the inner surface of the cavity.
  • Protrusions may also be arranged at the pin, for example extending in a radial direction.
  • retaining members provide for a certain grip of the insert such that the insert does not fall out of the cavity, even when the device is held upside down. However, the retaining members release the insert again preferably without damaging the insert, when a certain release force is exerted upon the insert .
  • an inductive heating and aerosol-generating system comprising a device as described in this application with pin and induction coil extending into a cavity in a device housing and comprises an aerosol-forming insert comprising an aerosol-forming substrate and a susceptor.
  • the aerosol-forming substrate is accommodated in the cavity of the device and arranged therein such that the susceptor of the aerosol-forming insert is inductively heatable by electromagnetic fields generated by the induction coil .
  • the aerosol-forming substrate is preferably a substrate capable of releasing volatile compounds that can form an aerosol.
  • the volatile compounds are released by heating the aerosol substrate.
  • the aerosol-forming substrate may be a solid or liquid or comprise both solid and liquid components.
  • the aerosol-forming substrate may comprise nicotine.
  • the nicotine containing aerosol-forming substrate may be a nicotine salt matrix.
  • the aerosol-forming substrate may comprise plant-based material.
  • the aerosol-forming substrate may comprise tobacco, and preferably the tobacco containing material contains volatile tobacco flavour compounds, which are released from the aerosol-forming substrate upon heating.
  • the aerosol-forming substrate may comprise homogenised tobacco material.
  • Homogenised tobacco material may be formed by agglomerating particulate tobacco. Where present, the homogenised tobacco material may have an aerosol-former content of equal to or greater than 5% on a dry weight basis, and preferably between greater than 5% and 30% by weight on a dry weight basis.
  • the aerosol-forming substrate may alternatively comprise a non-tobacco-containing material.
  • the aerosol-forming substrate may comprise homogenised plant-based material.
  • the aerosol-forming substrate may comprise at least one aerosol-former.
  • the aerosol-former may be any suitable known compound or mixture of compounds that, in use, facilitates formation of a dense and stable aerosol and that is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating device.
  • Suitable aerosol-formers are well known in the art and include, but are not limited to: polyhydric alcohols, such as triethylene glycol, 1 , 3-butanediol and glycerine; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate .
  • Particularly preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1 , 3-butanediol and, most preferred, glycerine.
  • the aerosol-forming substrate may comprise other additives and ingredients, such as flavourants.
  • the susceptor is a conductor that is capable of being inductively heated.
  • a susceptor is capable of absorbing electromagnetic energy and converting it to heat.
  • the changing electromagnetic field generated by the one or several induction coils heats the susceptor, which then transfers the heat to the aerosol-forming substrate of the aerosol-forming insert, mainly by conduction of heat.
  • the susceptor is in thermal proximity to the material of the aerosol forming substrate. Form, kind, distribution and arrangement of the or of the several susceptors may be selected according to a user' s need .
  • the high frequency current provided by the power source flowing through the induction coil may have frequencies in a range between 1 MHz to 30 MHz, preferably in a range between 1 MHz to 10 MHz, even more preferably in a range between 5 MHz to 7 MHz.
  • the term x in a range between' is herein understood as explicitly also disclosing the respective boundary values.
  • the aerosol-forming insert is a cartridge comprising a susceptor and containing a liquid, preferably comprising nicotine.
  • the aerosol-forming insert is a tobacco material containing unit comprising a susceptor.
  • the tobacco containing unit may be a unit comprising a susceptor and a tobacco plug made of a homogenized tobacco material.
  • the tobacco material containing unit may further comprise a filter arranged at a mouth end of the tobacco material containing unit.
  • Fig. 1 is a schematic drawing of an inductive heating device comprising a cavity for accommodating an aerosol-forming insert, wherein a central pin extends into the cavity;
  • Fig. 2 shows a cross-section section of an excerpt of an inductive heating device for example as shown in Fig. 1 with a central pin having an integrated induction coil;
  • Fig. 3 shows a cross-section of an excerpt of an inductive heating device with a central pin having an induction coil wound around the pin.
  • Fig. 1 schematically shows an inductive heating device 1 and an aerosol-forming insert 2 that in the mounted state of the aerosol-forming insert 2 form an inductive heating system.
  • the inductive heating device 1 comprises a device housing 10 with a distal end having electrical contacts 101 , for example a docking port comprising a pin, for connecting an internal electric power source 11 to an external power source (not shown), for example a charging device.
  • the internal power source 11, for example a rechargeable battery 11, is provided inside the device housing in a distal region of the housing 10.
  • the proximal end of the device housing has an insertion opening 102 for inserting the aerosol-forming insert 2 into a cavity 13.
  • the cavity 13 is formed inside the device housing in the proximal region thereof.
  • the cavity 13 is configured to removably receive the aerosol-forming insert 2 inside the cavity 13.
  • a pin 14 enclosing an induction coil 15 extends into the cavity coaxially to a longitudinal axis of the cavity 400, which axis in this embodiment corresponds to the longitudinal axis of the device housing.
  • Embodiments of the cavity and proximal region of the device housing will further be described in more detail in Fig. 2 and Fig. 3 below.
  • the device housing 10 further comprises electronics 12, for example a printed circuit board with circuitry.
  • the electronics 12 as well as the induction coil receive the required power from the internal power source 11.
  • the elements are interconnected accordingly.
  • Proximal and distal region of the device housing are separated by at least a bottom wall 131 of the cavity 13 or further separating housing walls.
  • any electric components may be kept separate from elements or processes in the cavity. This may be the unit itself but especially also residues emerging from the heating of the unit or of parts thereof and from an aerosol generating process.
  • the separation of the proximal region with the cavity and the distal region with electronics 12 and power source is fluid-tight.
  • ventilation openings for allowing an airflow into the proximal direction of the device 1 may be provided in cavity walls 130,131 and in the device housing or both.
  • the aerosol-forming insert 2 may for example comprise an aerosol-forming substrate, for example a tobacco material and an aerosol former containing plug 20.
  • the insert 2 comprises a susceptor for inductively heating the aerosol-forming substrate and may comprise a cigarette filter 21. Electromagnetic fields generated by the induction coil 15 inductively heat the susceptor in the aerosol-forming insert. The heat of the susceptor is transferred to the aerosol- forming substrate 20 thus evaporating components that may form an aerosol for inhalation by a user.
  • Fig. 2 shows an enlarged view onto a cross section of a cavity 13 with centrally arranged pin 14, for example the cavity of the inductive heating device of Fig. 1.
  • the cavity 13 has an internal surface, which is formed by cavity walls 130, 131, which may also be device housing walls (as shown in Fig. 1) .
  • One open end of the cavity 13 forms the insertion opening 102.
  • the pin 14 extends from the bottom wall 131 of the cavity 13 along a central longitudinal axis 400 of the cavity.
  • the induction coil 15 is arranged inside the pin and embedded therein (indicated by dotted lines) . By this, the induction coil 15 and electrical connections 150 to the induction coil have no contact to the cavity 13 or to a unit 2 accommodated in the cavity.
  • the induction coil 15 extends along substantially the entire length of the pin 14.
  • the induction coil is a helical coil and is preferably made of a copper wire.
  • the pin 14 has a length of about two third of the length of the cavity 13 and is arranged inside the cavity in its entirety.
  • an aerosol-forming unit 2 for example a tobacco plug or an aerosol-containing cartridge, may be inserted into the cavity 13.
  • the aerosol-forming unit 2 is arrangeable in the cavity 13 such that a susceptor of the unit when the unit is accommodated in the cavity is positioned such that the susceptor is inductively heatable by electromagnetic fields generated in the induction coil 15 and currents are induced in the susceptor.
  • the bottom wall 131 of the cavity 13 may serve as mechanical stop when introducing unit 2.
  • the pin 14 may be pointed at the distal tip to facilitate an alignment and insertion of the unit 2 in and into the cavity.
  • Outer surface of pin 14 or cavity 13 may in addition be provided with retentions 132 for holding the aerosol- forming unit 2 in the cavity.
  • pin 14 and cavity 13 are of cylindrical or tubular shape and are arranged concentrically.
  • Cavity walls 131 and pin 14 and preferably also the device housing 10 may be made of the same material and are preferably made of plastics material.
  • Preferably, cavity walls and pin are formed in one piece, for example by injection moulding.
  • Fig. 3 shows an enlarged view onto a cross section of a cavity 13 of an inductive heating device for example as described in Fig. 1.
  • the same reference numerals as in Fig. 2 are used for the same or similar elements.
  • the cavity 13 of Fig. 3 has a centrally arranged pin 14 extending into the cavity 13.
  • the induction coil 15 is wound around the pin and in contact with the cavity.
  • the induction coil 15 extends along the distal half of the pin 14.
  • pin 14 and cavity walls 130, 131 which may also be device walls, may be manufactured in one piece.
  • electric connections 150 from the induction coil 15 are led through the bottom wall 131 of the cavity 13 to a power supply in the inductive heating device.
  • feedthroughs are manufactured in an air-tight manner such as to not influence an airstream through or along an inserted aerosol-forming unit.
  • feedthroughs are manufactured such as to prevent components or substances generated in the cavity to reach the electronics 12 of the device 1.
  • Pin and induction coil arrangements as well as the inductive heating device are shown by way of example only. Variations, for example, length, number, location or thickness of an induction coil or pin, may be applied depending on a user' s need or on an aerosol-forming unit to be heated and used together with a device.

Abstract

The inductive heating device (1) for aerosol-generation comprises a device housing (10) comprising a cavity (13) having an internal surface for receiving at least a portion of an aerosol-forming insert (2) comprising an aerosol-forming substrate and a susceptor. The device housing (10) further comprises a pin (14) extending into the cavity (13). The device (1) further comprises an induction coil (15) arranged along the pin (14) and a power source (11) connected to the induction coil (15) and configured to provide a high frequency current to the induction coil (15).

Description

Inductive heating device and system for aerosol-generation
The invention relates to inductively heatable smoking devices, wherein an aerosol is generated by inductively heating an aerosol-forming substrate.
Prior art electric heating devices for aerosol generation are mostly large in size and have an energy consumption which is challenging for batteries available in the devices. While use of inductive heating bears advantages in view of energy efficiency, electromagnetic fields are generated that should be shielded.
Thus, there is a need for improved inductive heating devices for aerosol-generation that address at least some of the prior art drawbacks.
According to an aspect of the invention there is provided an inductive heating device for aerosol-generation. The device comprises a device housing comprising a cavity having an internal surface for receiving at least a portion of an aerosol-forming insert comprising an aerosol-forming substrate and a susceptor. The device housing further comprises a pin extending into the cavity. The device further comprises an induction coil arranged along the pin and a power source connected to the induction coil and configured to provide a high frequency current to the induction coil.
Inductive heating is known to be an efficient way of heating since heat may be generated at the location where it is desired. In addition, inductive heating allows for a contactless heating. In the device according to the invention, the induction coil may be kept separate from an aerosol-generating substrate. It may be kept separate from a susceptor provided for being heated by electromagnetic fields generated by the induction coil and for heating the aerosol- forming substrate. This facilitates a cleaning of the device. In addition, in some embodiments no residues may condense on the induction coil, which may generate undesirable aerosols upon reuse of the device. Yet further, the arrangement of the induction coil along a pin, which pin extends into the cavity provided for accommodation of the aerosol-forming insert, facilitates a good distribution of heat production in the aerosol-forming substrate. For example, the induction coil may be arranged at a position of the pin and may extend along a length of the pin such as to correspond to the extent of an aerosol-forming substrate provided in the aerosol-forming insert that shall be heated. Preferably, pin and induction coil are arranged such as to be at least partially surroundable by the aerosol-forming insert comprising the aerosol-forming substrate and the susceptor once the insert is accommodated in the cavity.
By arranging the induction coil in a center of the device rather than in a circumferential portion of the device, the device may be minimized. No circumferential space is required for the induction coil. In addition, with a centrally arranged induction coil, magnetic shielding is performed by the aerosol-forming insert or rather the susceptor provided with the insert. By this, no or a neglectable amount of electromagnetic radiation may leave the device and magnetic shielding of the device may be omitted.
A central arrangement of the induction coil bears the further advantage that an aerosol-forming substrate to be heated typically has a substantially ring-shaped cross section (or other outer forms but with an actual space for the pin) . Thus, in general, a thickness of the aerosol- forming substrate to be penetrated by the electromagnetic field is smaller than with for example entirely cylindrically shaped substrates. This may further support a homogeneous heating and a reduction in energy consumption.
According to an aspect of the device according to the invention, the induction coil is arranged within the pin and is not in contact with the cavity. In such an arrangement the induction coil and a power source may be kept entirely separated from a cavity for accommodating the aerosol-forming insert. Replacement of an insert may thus be performed without contact to the induction coil, thus without the risk of altering the induction coil or electrical contacts. Also cleaning of the cavity is facilitated. No hard to reach coil windings have to be cleaned, which might otherwise possibly be harmed upon cleaning. In addition, the pin may be constructed in a very solid manner. This may avoid the risk of bending or breaking for example an induction coil arranged in the cavity upon repeated introduction of an aerosol- forming insert. A pin may for example also be used to prong an aerosol-forming insert when being inserted into the cavity. In these embodiments, a preformed opening in the aerosol-forming insert may be omitted and the insert may simply be pushed onto the pin. The pin may be provided with a pointed distal tip in order to facilitate such a ^pronging' . A pointed tip may in general be provided to facilitate an alignment of the insert upon insertion into the cavity.
In some preferred embodiments, where the induction coil is not in contact with the cavity, the induction coil is moulded into the pin.
According to another aspect of the device according to the invention, the induction coil is wound around the pin. By this, an energy distribution along an entire cavity or only at a required location in the cavity may be provided. The arrangement of the induction coil outside along the pin may enable a closer arrangement of the induction coil to the aerosol-forming insert. Such an arrangement may be preferred depending on the design of the aerosol-forming insert, for example, if the aerosol-forming insert is a cartridge containing an aerosol-forming liquid. In these embodiments, a cartridge housing may serve as wall between induction coil and aerosol-forming substrate such that direct contact of the aerosol-forming substrate with the induction coil may be prevented.
According to a further aspect of the device according to the invention, the pin and the induction coil are arranged along a central longitudinal axis of the cavity. Such a central arrangement allows for a regular, symmetric distribution of the electromagnetic field generated by the induction coil inside the cavity, from the magnetic axis of the induction coil to a periphery or circumference of the cavity. Preferably, a circumferential portion of the inner surface of the cavity or side walls and the pin are of cylindrical shape. In combination with a central arrangement, the electromagnetic field distribution is basically homogeneous throughout the cavity and thus allows for a symmetric or regular heating of the aerosol-forming insert accommodated in the cavity.
According to another aspect of the device according to the invention, two of more induction coils are arranged along the pin and next to each other. By, this, control of aerosol generation may be facilitated. For example, a variety of heating possibilities of an aerosol-forming insert accommodated in the cavity is provided. For example, different induction coils may be provided with different amounts of energy. The energy may be provided at different times, for example subsequently. By this, different areas of an aerosol-forming substrate may be heated and to different extents. If for example a tobacco containing aerosol-forming substrate is used, a smoking experience may be enhanced or a nicotine delivery may be altered during smoking.
According to yet another aspect of the device according to the invention, the pin is integrally formed with the device housing. This may facilitate manufacturing of the device by reducing manufacturing step. In addition, a separate joint between pin and device housing may be omitted. Preferably, the device housing as well as the pin is made of a plastics material. Pin and housing may for example be manufactured by injection moulding.
Preferably an aerosol-generating insert snugly fits into the cavity of the device housing such that it may be held by the internal surface of the cavity, or by the pin or by both. The internal surface of the cavity, the pin or the device housing may also be formed to provide better hold for the inserted insert. According to another aspect of the device according to the invention, the device housing comprises retaining members for holding the aerosol-forming insert in the cavity when the aerosol-forming insert is accommodated in the cavity. Such retaining members may for example be protrusions at the internal surface of the cavity and extending into the cavity. Preferably, protrusions are arranged in a distal region of the cavity, near or at an insertion opening where an aerosol-forming insert is inserted into the cavity of the device housing. For example, protrusion may have the form of circumferentially running ribs or partial ribs. Protrusions may also serve as aligning members for supporting an introduction of the insert into the cavity. Preferably, aligning members have the form of longitudinal ribs extending longitudinally along the circumferential portion of the inner surface of the cavity. Protrusions may also be arranged at the pin, for example extending in a radial direction. Preferably, retaining members provide for a certain grip of the insert such that the insert does not fall out of the cavity, even when the device is held upside down. However, the retaining members release the insert again preferably without damaging the insert, when a certain release force is exerted upon the insert .
According to another aspect of the invention, there is also provided an inductive heating and aerosol-generating system. The system comprises a device as described in this application with pin and induction coil extending into a cavity in a device housing and comprises an aerosol-forming insert comprising an aerosol-forming substrate and a susceptor. The aerosol-forming substrate is accommodated in the cavity of the device and arranged therein such that the susceptor of the aerosol-forming insert is inductively heatable by electromagnetic fields generated by the induction coil .
Aspects and advantages of the device have been described above and will not be repeated.
The aerosol-forming substrate is preferably a substrate capable of releasing volatile compounds that can form an aerosol. The volatile compounds are released by heating the aerosol substrate. The aerosol-forming substrate may be a solid or liquid or comprise both solid and liquid components.
The aerosol-forming substrate may comprise nicotine. The nicotine containing aerosol-forming substrate may be a nicotine salt matrix. The aerosol-forming substrate may comprise plant-based material. The aerosol-forming substrate may comprise tobacco, and preferably the tobacco containing material contains volatile tobacco flavour compounds, which are released from the aerosol-forming substrate upon heating. The aerosol-forming substrate may comprise homogenised tobacco material.
Homogenised tobacco material may be formed by agglomerating particulate tobacco. Where present, the homogenised tobacco material may have an aerosol-former content of equal to or greater than 5% on a dry weight basis, and preferably between greater than 5% and 30% by weight on a dry weight basis.
The aerosol-forming substrate may alternatively comprise a non-tobacco-containing material. The aerosol-forming substrate may comprise homogenised plant-based material.
The aerosol-forming substrate may comprise at least one aerosol-former. The aerosol-former may be any suitable known compound or mixture of compounds that, in use, facilitates formation of a dense and stable aerosol and that is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating device. Suitable aerosol-formers are well known in the art and include, but are not limited to: polyhydric alcohols, such as triethylene glycol, 1 , 3-butanediol and glycerine; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate . Particularly preferred aerosol formers are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1 , 3-butanediol and, most preferred, glycerine.
The aerosol-forming substrate may comprise other additives and ingredients, such as flavourants. The susceptor is a conductor that is capable of being inductively heated. A susceptor is capable of absorbing electromagnetic energy and converting it to heat. In the system according to the invention, the changing electromagnetic field generated by the one or several induction coils heats the susceptor, which then transfers the heat to the aerosol-forming substrate of the aerosol-forming insert, mainly by conduction of heat. For this, the susceptor is in thermal proximity to the material of the aerosol forming substrate. Form, kind, distribution and arrangement of the or of the several susceptors may be selected according to a user' s need .
The high frequency current provided by the power source flowing through the induction coil may have frequencies in a range between 1 MHz to 30 MHz, preferably in a range between 1 MHz to 10 MHz, even more preferably in a range between 5 MHz to 7 MHz. The term xin a range between' is herein understood as explicitly also disclosing the respective boundary values.
In some preferred embodiments, the aerosol-forming insert is a cartridge comprising a susceptor and containing a liquid, preferably comprising nicotine. In some other preferred embodiments, the aerosol-forming insert is a tobacco material containing unit comprising a susceptor. The tobacco containing unit may be a unit comprising a susceptor and a tobacco plug made of a homogenized tobacco material. The tobacco material containing unit may further comprise a filter arranged at a mouth end of the tobacco material containing unit.
The invention is further described with regard to embodiments, which are illustrated by means of the following drawings, wherein Fig. 1 is a schematic drawing of an inductive heating device comprising a cavity for accommodating an aerosol-forming insert, wherein a central pin extends into the cavity;
Fig. 2 shows a cross-section section of an excerpt of an inductive heating device for example as shown in Fig. 1 with a central pin having an integrated induction coil;
Fig. 3 shows a cross-section of an excerpt of an inductive heating device with a central pin having an induction coil wound around the pin.
Fig. 1 schematically shows an inductive heating device 1 and an aerosol-forming insert 2 that in the mounted state of the aerosol-forming insert 2 form an inductive heating system. The inductive heating device 1 comprises a device housing 10 with a distal end having electrical contacts 101 , for example a docking port comprising a pin, for connecting an internal electric power source 11 to an external power source (not shown), for example a charging device. The internal power source 11, for example a rechargeable battery 11, is provided inside the device housing in a distal region of the housing 10.
The proximal end of the device housing has an insertion opening 102 for inserting the aerosol-forming insert 2 into a cavity 13. The cavity 13 is formed inside the device housing in the proximal region thereof. The cavity 13 is configured to removably receive the aerosol-forming insert 2 inside the cavity 13. A pin 14 enclosing an induction coil 15 (indicated with dotted lines) extends into the cavity coaxially to a longitudinal axis of the cavity 400, which axis in this embodiment corresponds to the longitudinal axis of the device housing. Embodiments of the cavity and proximal region of the device housing will further be described in more detail in Fig. 2 and Fig. 3 below.
The device housing 10 further comprises electronics 12, for example a printed circuit board with circuitry. The electronics 12 as well as the induction coil receive the required power from the internal power source 11. The elements are interconnected accordingly. Proximal and distal region of the device housing are separated by at least a bottom wall 131 of the cavity 13 or further separating housing walls. By arranging the induction coil inside the pin, any electric components may be kept separate from elements or processes in the cavity. This may be the unit itself but especially also residues emerging from the heating of the unit or of parts thereof and from an aerosol generating process. Preferably, the separation of the proximal region with the cavity and the distal region with electronics 12 and power source is fluid-tight. However, ventilation openings for allowing an airflow into the proximal direction of the device 1 may be provided in cavity walls 130,131 and in the device housing or both.
The aerosol-forming insert 2 may for example comprise an aerosol-forming substrate, for example a tobacco material and an aerosol former containing plug 20. The insert 2 comprises a susceptor for inductively heating the aerosol-forming substrate and may comprise a cigarette filter 21. Electromagnetic fields generated by the induction coil 15 inductively heat the susceptor in the aerosol-forming insert. The heat of the susceptor is transferred to the aerosol- forming substrate 20 thus evaporating components that may form an aerosol for inhalation by a user.
Fig. 2 shows an enlarged view onto a cross section of a cavity 13 with centrally arranged pin 14, for example the cavity of the inductive heating device of Fig. 1. The cavity 13 has an internal surface, which is formed by cavity walls 130, 131, which may also be device housing walls (as shown in Fig. 1) . One open end of the cavity 13 forms the insertion opening 102. The pin 14 extends from the bottom wall 131 of the cavity 13 along a central longitudinal axis 400 of the cavity. The induction coil 15 is arranged inside the pin and embedded therein (indicated by dotted lines) . By this, the induction coil 15 and electrical connections 150 to the induction coil have no contact to the cavity 13 or to a unit 2 accommodated in the cavity.
The induction coil 15 extends along substantially the entire length of the pin 14. The induction coil is a helical coil and is preferably made of a copper wire. The pin 14 has a length of about two third of the length of the cavity 13 and is arranged inside the cavity in its entirety. Through the insertion opening 102, an aerosol-forming unit 2, for example a tobacco plug or an aerosol-containing cartridge, may be inserted into the cavity 13. The aerosol-forming unit 2 is arrangeable in the cavity 13 such that a susceptor of the unit when the unit is accommodated in the cavity is positioned such that the susceptor is inductively heatable by electromagnetic fields generated in the induction coil 15 and currents are induced in the susceptor. The bottom wall 131 of the cavity 13 may serve as mechanical stop when introducing unit 2.
The pin 14 may be pointed at the distal tip to facilitate an alignment and insertion of the unit 2 in and into the cavity. Outer surface of pin 14 or cavity 13 may in addition be provided with retentions 132 for holding the aerosol- forming unit 2 in the cavity.
Preferably, pin 14 and cavity 13 are of cylindrical or tubular shape and are arranged concentrically. Cavity walls 131 and pin 14 and preferably also the device housing 10 may be made of the same material and are preferably made of plastics material. Preferably, cavity walls and pin are formed in one piece, for example by injection moulding.
Fig. 3 shows an enlarged view onto a cross section of a cavity 13 of an inductive heating device for example as described in Fig. 1. The same reference numerals as in Fig. 2 are used for the same or similar elements. The cavity 13 of Fig. 3 has a centrally arranged pin 14 extending into the cavity 13. The induction coil 15 is wound around the pin and in contact with the cavity. The induction coil 15 extends along the distal half of the pin 14.
Also in this embodiment pin 14 and cavity walls 130, 131, which may also be device walls, may be manufactured in one piece. Preferably, electric connections 150 from the induction coil 15 are led through the bottom wall 131 of the cavity 13 to a power supply in the inductive heating device. Preferably, feedthroughs are manufactured in an air-tight manner such as to not influence an airstream through or along an inserted aerosol-forming unit. Preferably, feedthroughs are manufactured such as to prevent components or substances generated in the cavity to reach the electronics 12 of the device 1.
By the central arrangement of the pin 14 in the cavity 13 as shown in Figs. 2 and 3, basically a same amount of aerosol-forming substrate of an aerosol-forming unit 2 accommodated in the cavity 13 is to be heated in radial direction of the pin. Thus, a uniform heating is possible with the induction coil arrangement according to the invention. In addition, by a centrally arranged induction coil 15, the aerosol-forming unit or rather the susceptor provided in the unit serves as magnetic shield such that additional shielding may be omitted.
Pin and induction coil arrangements as well as the inductive heating device are shown by way of example only. Variations, for example, length, number, location or thickness of an induction coil or pin, may be applied depending on a user' s need or on an aerosol-forming unit to be heated and used together with a device.

Claims

Claims
1. Inductive heating device for aerosol-generation, the device comprising:
- a device housing comprising a cavity having an internal surface for receiving at least a portion of an aerosol-forming insert comprising an aerosol- forming substrate and a susceptor, the device housing further comprising a pin extending into the cavity;
- an induction coil arranged along the pin; and
- a power source connected to the induction coil and configured to provide a high frequency current to the induction coil.
2. Device according to claim 1, wherein the induction coil is arranged within the pin and is not in contact with the cavity.
3. Device according to claim 2, wherein the induction coil is moulded into the pin.
4. Device according to claim 1, wherein the induction coil is wound around the pin.
5. Device according to any one of the preceding claims, wherein the pin and the induction coil are arranged along a central longitudinal axis of the cavity.
6. Device according to any one of the preceding claims, wherein a circumferential portion of the inner surface of the cavity and the pin are of cylindrical shape.
7. Device according to any one of the preceding claims, wherein two of more induction coils are arranged along the pin and next to each other.
8. Device according to any one of the preceding claims, wherein the pin is integrally formed with the device housing .
9. Device according to any one of the preceding claims, wherein the device housing comprises retaining members for holding the aerosol-forming insert in the cavity when the aerosol-forming insert is accommodated in the cavity .
10. Inductive heating and aerosol-generating system
comprising a device according to any one of the preceding claims and an aerosol-forming insert
comprising an aerosol-forming substrate and a
susceptor, wherein the aerosol-forming substrate is accommodated in the cavity of the device and arranged therein such that the susceptor of the aerosol-forming insert is inductively heatable by electromagnetic fields generated by the induction coil.
11. System according to claim 10, wherein the aerosol- forming insert is one of
a cartridge comprising a susceptor and containing a liquid, preferably comprising nicotine and
a tobacco material containing unit comprising a susceptor .
PCT/EP2015/061199 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation WO2015177254A1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
KR1020237005814A KR20230030033A (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
US15/121,554 US10986869B2 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol generation
PL15724271T PL3145341T3 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
MX2016015138A MX2016015138A (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation.
RU2016138699A RU2674612C2 (en) 2014-05-21 2015-05-21 Inductive heating device and aerosol generation system
ES15724271.0T ES2682971T3 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol generation
SG11201605728SA SG11201605728SA (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
EP15724271.0A EP3145341B1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
AU2015261877A AU2015261877B2 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
DK15724271.0T DK3145341T3 (en) 2014-05-21 2015-05-21 INDUCTIVE HEATER AND AEROSOL GENERATION SYSTEM
UAA201610214A UA120362C2 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
CN201580019380.6A CN106163309B (en) 2014-05-21 2015-05-21 Induction heating device and system for generating aerosol
RS20180841A RS57516B1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
CA2948727A CA2948727A1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
JP2016561286A JP6684720B2 (en) 2014-05-21 2015-05-21 Induction heating device and system for aerosol generation
LTEP15724271.0T LT3145341T (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
KR1020167026396A KR102516952B1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
SI201530312T SI3145341T1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation
ZA2016/04363A ZA201604363B (en) 2014-05-21 2016-06-28 Inductive heating device and system for aerosol-generation
PH12016501277A PH12016501277B1 (en) 2014-05-21 2016-06-29 Inductive heating device and system for aerosol-generation
IL248951A IL248951B (en) 2014-05-21 2016-11-14 Inductive heating device and system for aerosol-generation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14169190.7 2014-05-21
EP14169190 2014-05-21

Publications (1)

Publication Number Publication Date
WO2015177254A1 true WO2015177254A1 (en) 2015-11-26

Family

ID=50732943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/061199 WO2015177254A1 (en) 2014-05-21 2015-05-21 Inductive heating device and system for aerosol-generation

Country Status (27)

Country Link
US (1) US10986869B2 (en)
EP (1) EP3145341B1 (en)
JP (1) JP6684720B2 (en)
KR (2) KR20230030033A (en)
CN (1) CN106163309B (en)
AR (1) AR100540A1 (en)
AU (1) AU2015261877B2 (en)
CA (1) CA2948727A1 (en)
DK (1) DK3145341T3 (en)
ES (1) ES2682971T3 (en)
HU (1) HUE039427T2 (en)
IL (1) IL248951B (en)
LT (1) LT3145341T (en)
MX (1) MX2016015138A (en)
MY (1) MY179957A (en)
PH (1) PH12016501277B1 (en)
PL (1) PL3145341T3 (en)
PT (1) PT3145341T (en)
RS (1) RS57516B1 (en)
RU (1) RU2674612C2 (en)
SG (1) SG11201605728SA (en)
SI (1) SI3145341T1 (en)
TR (1) TR201810446T4 (en)
TW (1) TWI667964B (en)
UA (1) UA120362C2 (en)
WO (1) WO2015177254A1 (en)
ZA (1) ZA201604363B (en)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106418703A (en) * 2016-09-06 2017-02-22 深圳市合元科技有限公司 Electronic cigarette and atomizer thereof
WO2017186455A1 (en) * 2016-04-27 2017-11-02 Philip Morris Products S.A. Aerosol-generating device with securing means
WO2017207674A1 (en) * 2016-05-31 2017-12-07 Philip Morris Products S.A. Electrically operated aerosol-generating system with tubular aerosol-generating article having improved airflow
JP2018502586A (en) * 2015-12-22 2018-02-01 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generation system cartridge and aerosol generation system including cartridge
WO2018019738A1 (en) * 2016-07-29 2018-02-01 Philip Morris Products S.A. Aerosol-generating system comprising a gel containing cartridge and a device for heating the cartridge
JP2018502587A (en) * 2015-12-22 2018-02-01 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generation system cartridge and aerosol generation system including cartridge
EP2753203B1 (en) 2011-09-06 2018-03-28 British American Tobacco (Investments) Ltd Heating smokable material
WO2018146071A1 (en) * 2017-02-07 2018-08-16 Philip Morris Products S.A. Inductively heated aerosol-generating device comprising a reusable susceptor
WO2018184787A1 (en) * 2017-04-05 2018-10-11 Philip Morris Products S.A. Susceptor for use with an inductively heated aerosol-generating device or system
US10104912B2 (en) 2016-01-20 2018-10-23 Rai Strategic Holdings, Inc. Control for an induction-based aerosol delivery device
WO2018220558A1 (en) * 2017-05-31 2018-12-06 Philip Morris Products S.A. Heating component in aerosol generating devices
US10524508B2 (en) 2016-11-15 2020-01-07 Rai Strategic Holdings, Inc. Induction-based aerosol delivery device
US10582726B2 (en) 2015-10-21 2020-03-10 Rai Strategic Holdings, Inc. Induction charging for an aerosol delivery device
US10729176B2 (en) 2011-09-06 2020-08-04 British American Tobacco (Investments) Limited Heating smokeable material
US10820630B2 (en) 2015-11-06 2020-11-03 Rai Strategic Holdings, Inc. Aerosol delivery device including a wirelessly-heated atomizer and related method
US10881138B2 (en) 2012-04-23 2021-01-05 British American Tobacco (Investments) Limited Heating smokeable material
US10945456B2 (en) 2017-08-09 2021-03-16 Philip Morris Products S.A. Aerosol generating system with multiple inductor coils
US11039644B2 (en) 2013-10-29 2021-06-22 Nicoventures Trading Limited Apparatus for heating smokeable material
US11141548B2 (en) 2016-07-26 2021-10-12 British American Tobacco (Investments) Limited Method of generating aerosol
US11324259B2 (en) 2017-08-09 2022-05-10 Philip Morris Products S.A. Aerosol generating system with non-circular inductor coil
US11363840B2 (en) 2017-08-09 2022-06-21 Philip Morris Products S.A. Aerosol-generating device with removable susceptor
US11375753B2 (en) 2017-08-09 2022-07-05 Philip Morris Products S.A. Aerosol-generating device having an inductor coil with reduced separation
US11382358B2 (en) 2017-08-09 2022-07-12 Philip Morris Products S.A. Aerosol-generating device with susceptor layer
US11388932B2 (en) 2017-08-09 2022-07-19 Philip Morris Products S.A. Aerosol-generating device with flat inductor coil
AU2020217428B2 (en) * 2015-01-28 2022-07-28 Nicoventures Trading Limited Apparatus for heating aerosol generating material
US11503676B2 (en) 2017-01-17 2022-11-15 Nicoventures Trading Limited Apparatus for heating smokable material
USD977705S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
USD977706S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
USD977704S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
US11576424B2 (en) 2017-04-05 2023-02-14 Altria Client Services Llc Susceptor for use with an inductively heated aerosol-generating device or system
USD986482S1 (en) 2020-10-30 2023-05-16 Nicoventures Trading Limited Aerosol generator
USD986483S1 (en) 2020-10-30 2023-05-16 Nicoventures Trading Limited Aerosol generator
US11659863B2 (en) 2015-08-31 2023-05-30 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
USD989384S1 (en) 2021-04-30 2023-06-13 Nicoventures Trading Limited Aerosol generator
US11672279B2 (en) 2011-09-06 2023-06-13 Nicoventures Trading Limited Heating smokeable material
USD990765S1 (en) 2020-10-30 2023-06-27 Nicoventures Trading Limited Aerosol generator
US11707092B2 (en) 2016-12-30 2023-07-25 Jt International S.A. Aerosol generating apparatuses with locating member and substantially surrounding airflow path of consumable unit
US11793239B2 (en) 2017-08-09 2023-10-24 Philip Morris Products S.A. Aerosol generating system with multiple susceptors
US11896055B2 (en) 2015-06-29 2024-02-13 Nicoventures Trading Limited Electronic aerosol provision systems
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160345631A1 (en) 2005-07-19 2016-12-01 James Monsees Portable devices for generating an inhalable vapor
GB201217067D0 (en) 2012-09-25 2012-11-07 British American Tobacco Co Heating smokable material
US10279934B2 (en) 2013-03-15 2019-05-07 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
US10058129B2 (en) 2013-12-23 2018-08-28 Juul Labs, Inc. Vaporization device systems and methods
USD825102S1 (en) 2016-07-28 2018-08-07 Juul Labs, Inc. Vaporizer device with cartridge
US10076139B2 (en) 2013-12-23 2018-09-18 Juul Labs, Inc. Vaporizer apparatus
US10159282B2 (en) 2013-12-23 2018-12-25 Juul Labs, Inc. Cartridge for use with a vaporizer device
USD842536S1 (en) 2016-07-28 2019-03-05 Juul Labs, Inc. Vaporizer cartridge
US20160366947A1 (en) 2013-12-23 2016-12-22 James Monsees Vaporizer apparatus
FI3491948T4 (en) 2013-12-23 2024-05-06 Juul Labs International Inc Vaporization device systems
GB2527597B (en) 2014-06-27 2016-11-23 Relco Induction Dev Ltd Electronic Vapour Inhalers
GB2546934B (en) * 2014-11-11 2018-04-11 Jt Int Sa Electronic vapour inhalers
EP3821735A1 (en) 2014-12-05 2021-05-19 Juul Labs, Inc. Calibrated dose control
TWI703936B (en) 2015-03-27 2020-09-11 瑞士商菲利浦莫里斯製品股份有限公司 A paper wrapper for an electrically heated aerosol-generating article
US20170055575A1 (en) 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Material for use with apparatus for heating smokable material
US20170119046A1 (en) 2015-10-30 2017-05-04 British American Tobacco (Investments) Limited Apparatus for Heating Smokable Material
US20170119047A1 (en) 2015-10-30 2017-05-04 British American Tobacco (Investments) Limited Article for Use with Apparatus for Heating Smokable Material
EP3413960B1 (en) 2016-02-11 2021-03-31 Juul Labs, Inc. Fillable vaporizer cartridge and method of filling
SG11201806801VA (en) 2016-02-11 2018-09-27 Juul Labs Inc Securely attaching cartridges for vaporizer devices
US10405582B2 (en) 2016-03-10 2019-09-10 Pax Labs, Inc. Vaporization device with lip sensing
US10258088B2 (en) * 2016-04-06 2019-04-16 MNA Holdings, LLC Diffuser device, system and method
USD849996S1 (en) 2016-06-16 2019-05-28 Pax Labs, Inc. Vaporizer cartridge
USD836541S1 (en) 2016-06-23 2018-12-25 Pax Labs, Inc. Charging device
USD851830S1 (en) 2016-06-23 2019-06-18 Pax Labs, Inc. Combined vaporizer tamp and pick tool
US10758686B2 (en) 2017-01-31 2020-09-01 Altria Client Services Llc Aerosol-generating device and aerosol-generating system
JP7019705B2 (en) * 2017-01-31 2022-02-15 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generator and aerosol generator
EP3664634B1 (en) * 2017-08-09 2021-11-17 Philip Morris Products S.A. Aerosol-generating device with detachably insertable heating compartment
USD887632S1 (en) 2017-09-14 2020-06-16 Pax Labs, Inc. Vaporizer cartridge
CN207754542U (en) * 2017-10-30 2018-08-24 深圳市合元科技有限公司 The apparatus for aerosol creation of adjustable heating region
US10517332B2 (en) 2017-10-31 2019-12-31 Rai Strategic Holdings, Inc. Induction heated aerosol delivery device
CN111656862B (en) * 2017-11-30 2023-07-04 戴纳威普有限责任公司 Portable induction heater
WO2019129637A1 (en) * 2017-12-28 2019-07-04 Jt International Sa Induction heating assembly for a vapour generating device
US10750787B2 (en) 2018-01-03 2020-08-25 Cqens Technologies Inc. Heat-not-burn device and method
US11019850B2 (en) 2018-02-26 2021-06-01 Rai Strategic Holdings, Inc. Heat conducting substrate for electrically heated aerosol delivery device
CN108323823A (en) * 2018-04-17 2018-07-27 威滔电子科技（深圳）有限公司 A kind of aerosol generating system and aerosol generating device for improving air-flow
US11730199B2 (en) 2018-06-07 2023-08-22 Juul Labs, Inc. Cartridges for vaporizer devices
RU2753909C1 (en) * 2018-06-14 2021-08-24 Филип Моррис Продактс С.А. Performed with the possibility of draining heater for aerosol generating device
CN108617042A (en) * 2018-07-05 2018-10-02 湖北中烟工业有限责任公司 A kind of smoking apparatus of induced inside heating
KR102131617B1 (en) * 2018-07-20 2020-07-08 (주)엠티아이지 Heater module for electronic cigarette using Titanium
CN112312782A (en) * 2018-07-26 2021-02-02 菲利普莫里斯生产公司 System for generating an aerosol
GB201812490D0 (en) * 2018-07-31 2018-09-12 Nicoventures Trading Ltd Consumable for use with apparatus for heating aerosolisable material
KR20210099572A (en) * 2018-12-10 2021-08-12 제이티 인터내셔널 소시에떼 아노님 Aerosol generating devices and systems
CN109714849B (en) * 2018-12-19 2021-05-18 京信通信系统（中国）有限公司 Hand-held type heating device
JP2022525090A (en) * 2019-03-11 2022-05-11 ニコベンチャーズ トレーディング リミテッド Aerosol generation device
WO2020182743A1 (en) * 2019-03-11 2020-09-17 Nicoventures Trading Limited Aerosol provision device
EA202190997A1 (en) * 2019-08-08 2021-07-21 ДжейТи ИНТЕРНЭШНЛ С.А. AEROSOL GENERATING DEVICE AND HEATING CHAMBER FOR IT
CN113455712A (en) * 2021-06-21 2021-10-01 深圳麦时科技有限公司 Heating element assembly and aerosol generating device
WO2023007525A1 (en) * 2021-07-26 2023-02-02 日本たばこ産業株式会社 Aerosol generation system
KR20230102970A (en) * 2021-12-30 2023-07-07 주식회사 케이티앤지 Device for generating aerosol

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027411A1 (en) * 1994-04-08 1995-10-19 Philip Morris Products Inc. Inductive heating systems for smoking articles
EP2444112A1 (en) * 2009-06-19 2012-04-25 Wenbo Li High-frequency induction atomization device
EP2609821A1 (en) * 2011-12-30 2013-07-03 Philip Morris Products S.A. Method and apparatus for cleaning a heating element of aerosol-generating device
WO2013102609A2 (en) * 2012-01-03 2013-07-11 Philip Morris Products S.A. An aerosol generating device and system with improved airflow
WO2014048745A1 (en) * 2012-09-25 2014-04-03 British American Tobacco (Investments) Limited Heating smokable material

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144962A (en) * 1989-12-01 1992-09-08 Philip Morris Incorporated Flavor-delivery article
US5902501A (en) * 1997-10-20 1999-05-11 Philip Morris Incorporated Lighter actuation system
US6615840B1 (en) * 2002-02-15 2003-09-09 Philip Morris Incorporated Electrical smoking system and method
US20050172976A1 (en) * 2002-10-31 2005-08-11 Newman Deborah J. Electrically heated cigarette including controlled-release flavoring
US6803550B2 (en) * 2003-01-30 2004-10-12 Philip Morris Usa Inc. Inductive cleaning system for removing condensates from electronic smoking systems
US7185659B2 (en) * 2003-01-31 2007-03-06 Philip Morris Usa Inc. Inductive heating magnetic structure for removing condensates from electrical smoking device
EP2211645A4 (en) * 2007-09-28 2013-01-16 Vector Tobacco Inc Reduced risk tobacco products and use thereof
CN201522075U (en) * 2009-10-16 2010-07-07 陈家显 Built-in electromagnetic induction heating device
CN101791198B (en) 2009-12-16 2011-08-31 岑延华 Electrolyzed and magnetized drinking fountain and electromagnetic water heater
EP2340730A1 (en) * 2009-12-30 2011-07-06 Philip Morris Products S.A. A shaped heater for an aerosol generating system
EP2460422A1 (en) * 2010-12-03 2012-06-06 Philip Morris Products S.A. An aerosol generating system with provention of condensate leakage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995027411A1 (en) * 1994-04-08 1995-10-19 Philip Morris Products Inc. Inductive heating systems for smoking articles
EP2444112A1 (en) * 2009-06-19 2012-04-25 Wenbo Li High-frequency induction atomization device
EP2609821A1 (en) * 2011-12-30 2013-07-03 Philip Morris Products S.A. Method and apparatus for cleaning a heating element of aerosol-generating device
WO2013102609A2 (en) * 2012-01-03 2013-07-11 Philip Morris Products S.A. An aerosol generating device and system with improved airflow
WO2014048745A1 (en) * 2012-09-25 2014-04-03 British American Tobacco (Investments) Limited Heating smokable material

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11672279B2 (en) 2011-09-06 2023-06-13 Nicoventures Trading Limited Heating smokeable material
US11051551B2 (en) 2011-09-06 2021-07-06 Nicoventures Trading Limited Heating smokable material
US10729176B2 (en) 2011-09-06 2020-08-04 British American Tobacco (Investments) Limited Heating smokeable material
EP2753203B1 (en) 2011-09-06 2018-03-28 British American Tobacco (Investments) Ltd Heating smokable material
US10881138B2 (en) 2012-04-23 2021-01-05 British American Tobacco (Investments) Limited Heating smokeable material
US11039644B2 (en) 2013-10-29 2021-06-22 Nicoventures Trading Limited Apparatus for heating smokeable material
AU2020217428B2 (en) * 2015-01-28 2022-07-28 Nicoventures Trading Limited Apparatus for heating aerosol generating material
US11896055B2 (en) 2015-06-29 2024-02-13 Nicoventures Trading Limited Electronic aerosol provision systems
US11659863B2 (en) 2015-08-31 2023-05-30 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US10582726B2 (en) 2015-10-21 2020-03-10 Rai Strategic Holdings, Inc. Induction charging for an aerosol delivery device
US10820630B2 (en) 2015-11-06 2020-11-03 Rai Strategic Holdings, Inc. Aerosol delivery device including a wirelessly-heated atomizer and related method
US10334883B2 (en) 2015-12-22 2019-07-02 Philip Morris Products S.A. Cartridge for an aerosol-generating system and an aerosol-generating system comprising a cartridge
US10645973B2 (en) 2015-12-22 2020-05-12 Philip Morris Products S.A. Cartridge for an aerosol-generating system and an aerosol-generating system comprising a cartridge
JP2018502587A (en) * 2015-12-22 2018-02-01 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generation system cartridge and aerosol generation system including cartridge
JP2018502586A (en) * 2015-12-22 2018-02-01 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol generation system cartridge and aerosol generation system including cartridge
US10104912B2 (en) 2016-01-20 2018-10-23 Rai Strategic Holdings, Inc. Control for an induction-based aerosol delivery device
CN109068738A (en) * 2016-04-27 2018-12-21 菲利普莫里斯生产公司 Apparatus for aerosol creation with fixing component
US11388929B2 (en) 2016-04-27 2022-07-19 Philip Morris Products S.A. Aerosol generating device with securing means
KR20180134914A (en) 2016-04-27 2018-12-19 필립모리스 프로덕츠 에스.에이. Aerosol generating device with fixing means
RU2728255C2 (en) * 2016-04-27 2020-07-28 Филип Моррис Продактс С.А. Aerosol-generating device with fixing means
KR20220134053A (en) 2016-04-27 2022-10-05 필립모리스 프로덕츠 에스.에이. Aerosol generating device with securing means
WO2017186455A1 (en) * 2016-04-27 2017-11-02 Philip Morris Products S.A. Aerosol-generating device with securing means
CN109068738B (en) * 2016-04-27 2022-04-12 菲利普莫里斯生产公司 Aerosol-generating device with securing member
US11116248B2 (en) 2016-05-31 2021-09-14 Philip Morris Products S.A. Electrically operated aerosol-generating system with tubular aerosol-generating article having improved airflow
WO2017207674A1 (en) * 2016-05-31 2017-12-07 Philip Morris Products S.A. Electrically operated aerosol-generating system with tubular aerosol-generating article having improved airflow
RU2765425C2 (en) * 2016-05-31 2022-01-31 Филип Моррис Продактс С.А. Electrically controlled aerosol-generating system with a tubular aerosol-generating article, having an improved air flow
US11141548B2 (en) 2016-07-26 2021-10-12 British American Tobacco (Investments) Limited Method of generating aerosol
EP3490392B1 (en) 2016-07-29 2022-11-23 Philip Morris Products S.A. Aerosol-generating system comprising a gel containing cartridge and a device for heating the cartridge
RU2760356C2 (en) * 2016-07-29 2021-11-24 Филип Моррис Продактс С.А. Aerosol generating system that contains cartridge containing gel and device for heating cartridge
WO2018019738A1 (en) * 2016-07-29 2018-02-01 Philip Morris Products S.A. Aerosol-generating system comprising a gel containing cartridge and a device for heating the cartridge
US11291248B2 (en) 2016-07-29 2022-04-05 Altria Client Services Llc Aerosol-generating system including a cartridge containing a gel and a device for heating the cartridge
CN106418703A (en) * 2016-09-06 2017-02-22 深圳市合元科技有限公司 Electronic cigarette and atomizer thereof
US10524508B2 (en) 2016-11-15 2020-01-07 Rai Strategic Holdings, Inc. Induction-based aerosol delivery device
US11588350B2 (en) 2016-11-15 2023-02-21 Rai Strategic Holdings, Inc. Induction-based aerosol delivery device
US11707092B2 (en) 2016-12-30 2023-07-25 Jt International S.A. Aerosol generating apparatuses with locating member and substantially surrounding airflow path of consumable unit
US11503676B2 (en) 2017-01-17 2022-11-15 Nicoventures Trading Limited Apparatus for heating smokable material
WO2018146071A1 (en) * 2017-02-07 2018-08-16 Philip Morris Products S.A. Inductively heated aerosol-generating device comprising a reusable susceptor
JP7053675B2 (en) 2017-02-07 2022-04-12 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Induction heating aerosol generator with reusable susceptor
JP2020505077A (en) * 2017-02-07 2020-02-20 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Induction heating aerosol generator with reusable susceptor
RU2751032C2 (en) * 2017-02-07 2021-07-07 Филип Моррис Продактс С.А. Inductively heated aerosol generating device containing a reusable current collector
US11576424B2 (en) 2017-04-05 2023-02-14 Altria Client Services Llc Susceptor for use with an inductively heated aerosol-generating device or system
WO2018184787A1 (en) * 2017-04-05 2018-10-11 Philip Morris Products S.A. Susceptor for use with an inductively heated aerosol-generating device or system
US11871790B2 (en) 2017-04-05 2024-01-16 Altria Client Services Llc Susceptor for use with an inductively heated aerosol-generating device or system
WO2018220558A1 (en) * 2017-05-31 2018-12-06 Philip Morris Products S.A. Heating component in aerosol generating devices
US11452180B2 (en) 2017-05-31 2022-09-20 Philip Morris Products S.A. Heating component in aerosol generating devices
US11266182B2 (en) 2017-08-09 2022-03-08 Philip Morris Products S.A. Aerosol generating system with multiple inductor coils
US11324259B2 (en) 2017-08-09 2022-05-10 Philip Morris Products S.A. Aerosol generating system with non-circular inductor coil
US11350667B2 (en) 2017-08-09 2022-06-07 Philip Morris Products S.A. Aerosol generating system with multiple inductor coils
US11363840B2 (en) 2017-08-09 2022-06-21 Philip Morris Products S.A. Aerosol-generating device with removable susceptor
US10945456B2 (en) 2017-08-09 2021-03-16 Philip Morris Products S.A. Aerosol generating system with multiple inductor coils
US11375753B2 (en) 2017-08-09 2022-07-05 Philip Morris Products S.A. Aerosol-generating device having an inductor coil with reduced separation
US11793239B2 (en) 2017-08-09 2023-10-24 Philip Morris Products S.A. Aerosol generating system with multiple susceptors
US11382358B2 (en) 2017-08-09 2022-07-12 Philip Morris Products S.A. Aerosol-generating device with susceptor layer
US11388932B2 (en) 2017-08-09 2022-07-19 Philip Morris Products S.A. Aerosol-generating device with flat inductor coil
USD990765S1 (en) 2020-10-30 2023-06-27 Nicoventures Trading Limited Aerosol generator
USD977706S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
USD986483S1 (en) 2020-10-30 2023-05-16 Nicoventures Trading Limited Aerosol generator
USD986482S1 (en) 2020-10-30 2023-05-16 Nicoventures Trading Limited Aerosol generator
USD977705S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
USD977704S1 (en) 2020-10-30 2023-02-07 Nicoventures Trading Limited Aerosol generator
USD989384S1 (en) 2021-04-30 2023-06-13 Nicoventures Trading Limited Aerosol generator

Also Published As

Publication number Publication date
EP3145341B1 (en) 2018-07-04
KR20170003909A (en) 2017-01-10
KR20230030033A (en) 2023-03-03
PL3145341T3 (en) 2019-02-28
KR102516952B1 (en) 2023-04-03
SI3145341T1 (en) 2018-08-31
AU2015261877B2 (en) 2019-03-07
ZA201604363B (en) 2019-01-30
TR201810446T4 (en) 2018-08-27
TW201600032A (en) 2016-01-01
US20170119054A1 (en) 2017-05-04
IL248951A0 (en) 2017-01-31
AR100540A1 (en) 2016-10-12
MX2016015138A (en) 2017-03-27
CA2948727A1 (en) 2015-11-26
RS57516B1 (en) 2018-10-31
UA120362C2 (en) 2019-11-25
IL248951B (en) 2019-07-31
MY179957A (en) 2020-11-19
SG11201605728SA (en) 2016-08-30
RU2016138699A (en) 2018-06-21
RU2674612C2 (en) 2018-12-11
RU2016138699A3 (en) 2018-08-30
JP2017515461A (en) 2017-06-15
ES2682971T3 (en) 2018-09-24
EP3145341A1 (en) 2017-03-29
CN106163309A (en) 2016-11-23
DK3145341T3 (en) 2018-08-13
HUE039427T2 (en) 2018-12-28
PT3145341T (en) 2018-11-08
US10986869B2 (en) 2021-04-27
CN106163309B (en) 2020-02-28
JP6684720B2 (en) 2020-04-22
TWI667964B (en) 2019-08-11
AU2015261877A1 (en) 2016-07-21
PH12016501277A1 (en) 2016-08-15
LT3145341T (en) 2018-08-27
PH12016501277B1 (en) 2016-08-15

Similar Documents

Publication Publication Date Title
AU2015261877B2 (en) Inductive heating device and system for aerosol-generation
US9717277B2 (en) Inductive heating device and system for aerosol-generation
CN111132565A (en) Consumable cartridge for an aerosol-generating device
US20230380502A1 (en) Aerosol provision device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15724271

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12016501277

Country of ref document: PH

ENP Entry into the national phase

Ref document number: 2015261877

Country of ref document: AU

Date of ref document: 20150521

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 15121554

Country of ref document: US

ENP Entry into the national phase

Ref document number: 20167026396

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2016561286

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: A201610214

Country of ref document: UA

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112016021372

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 2948727

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 248951

Country of ref document: IL

WWE Wipo information: entry into national phase

Ref document number: MX/A/2016/015138

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2016/1130.1

Country of ref document: KZ

REEP Request for entry into the european phase

Ref document number: 2015724271

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015724271

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2016138699

Country of ref document: RU

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 112016021372

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20160916