WO2024046879A1 - Appareil de génération d'aérosol - Google Patents

Appareil de génération d'aérosol Download PDF

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Publication number
WO2024046879A1
WO2024046879A1 PCT/EP2023/073302 EP2023073302W WO2024046879A1 WO 2024046879 A1 WO2024046879 A1 WO 2024046879A1 EP 2023073302 W EP2023073302 W EP 2023073302W WO 2024046879 A1 WO2024046879 A1 WO 2024046879A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol generating
generating apparatus
central aperture
consumable
internal
Prior art date
Application number
PCT/EP2023/073302
Other languages
English (en)
Inventor
Andrew Robert WALLACE
Original Assignee
Imperial Tobacco Limited
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 Imperial Tobacco Limited filed Critical Imperial Tobacco Limited
Publication of WO2024046879A1 publication Critical patent/WO2024046879A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors
    • 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 to an aerosol generating apparatus.
  • a typical aerosol generating apparatus may comprise a power supply, an aerosol generating unit that is driven by the power supply, an aerosol precursor, which in use is aerosolised by the aerosol generating unit to generate an aerosol, and a delivery system for delivery of the aerosol to a user.
  • a drawback with known aerosol generating apparatuses is inconsistent aerosol generation from the aerosol precursor.
  • the present disclosure provides an aerosol generating device or aerosol generating apparatus having a consumable holder defining a cup-shaped consumable receiving cavity, the cavity having a wall extending longitudinally from a base, wherein the base of the cavity is configured to provide improved air distribution across the base.
  • an aerosol generating apparatus comprising a heating element and a consumable holder defining a cup-shaped consumable receiving cavity for receiving and positioning a consumable relative to the heating element.
  • the cup-shaped cavity has a wall extending longitudinally from a base.
  • the base comprises a central aperture, through which the heating element extends; and a peripheral aperture spaced apart from the central aperture in a transverse direction.
  • Each of the central aperture and the peripheral aperture are configured to form an air inlet of the cavity of the consumable holder.
  • a consumable holder wherein the base comprises a central aperture and a peripheral aperture, each being configured to form an air inlet for the cavity, may provide improved air distribution across the base of the cavity. This may enable, for example, improved and more consistent aerosol generation by providing more uniform air passage through the consumable.
  • the central aperture may form an air inlet by having a larger surface area or radial extent than the heating element. This may provide an annular region of the central aperture surrounding the heating element to form an air inlet. Other arrangements of the central aperture and the heating element are also possible.
  • Each of the central aperture and the peripheral aperture are configured to form an air inlet of the cavity in that, in normal usage of the aerosol generating apparatus, air flows inwardly through each of the central aperture and the peripheral aperture into the cavity of the consumable holder.
  • the aerosol generating apparatus may comprise a plurality of peripheral apertures arranged about the central aperture. Having a plurality of peripheral apertures may further improve the air distribution into the consumable holder. Furthermore, the plurality of peripheral apertures may provide improved resilience against fouling of any of the apertures, for example due to debris or residue from a consumable, by providing an increased number of air flow paths into the consumable holder.
  • the peripheral apertures may be arranged in one or more rings (along one or more circular paths) about the central aperture.
  • the peripheral apertures may be arranged about the central aperture such that each respective peripheral aperture is equidistant between two nearest neighbour peripheral apertures. This represents a particular arrangement of the peripheral apertures that may provide improved air flow and distribution. In other examples, the peripheral apertures may be symmetrically distributed around the central aperture.
  • an external surface of the base of the consumable holder may comprise an external trench extending radially outwards from the central aperture.
  • the external trench may provide improved air flow into the central aperture. For example, it may provide a passage for air to reach the central aperture from an outer edge of the consumable holder.
  • each peripheral aperture may be arranged to coincide with a corresponding external trench. This may reduce or protect against a blockage or seal forming beneath the consumable holder, for example between the consumable holder and another component of the aerosol generating apparatus such as a baseplate surrounding the heating element. Similarly, even if the central aperture becomes blocked (for example by debris or residue on the heating element, air may still be able to enter the consumable holder cavity via the peripheral apertures arranged over the external trenches.
  • an aerosol generating apparatus comprising a heating element and a consumable holder defining a cup-shaped consumable receiving cavity for receiving and positioning a consumable relative to the heating element.
  • the cavity has a wall extending longitudinally from a base.
  • the base comprises a central aperture, through which the heating element extends, the central aperture being configured to form an air inlet of the consumable holder cavity; and an internal trench extending radially outwards from the central aperture.
  • a trench opening to the central aperture and extending radially outward therefrom may receive and redirect some of the air entering the cavity via the central aperture air inlet to distribute the air across an end face of the consumable. For example, it may provide a passage for air to move across the face of the consumable. Air may thereby be drawn more evenly through the end face of the consumable and may thereby better generate and entrain an aerosol from the consumable for deliver to a user.
  • the internal trench may have a greater width at a radially outer end of the internal trench than at a radially inner end of the internal trench.
  • the internal trench may widen between the central aperture and the wall of the cavity. This may provide, for example, an improved airflow along the internal trench towards an outer end of the trench.
  • a side wall of the internal trench is slanted with respect to a base of the internal trench such that the internal trench is narrower at the base of the internal trench than at a top of the internal trench.
  • the walls of the internal trench may not be perpendicular to the base, but may instead splay outwards from the base towards the upper end of the trench. This splay or slant, sometimes referred to as a draft angle, may ease manufacturability of the consumable holder by providing a structure for the trench that is achievable via injection moulding of the consumable holder.
  • the internal trench may terminate at the wall of the consumable holder cavity.
  • the internal trench may extend from the central aperture to the outer edge of the base of the consumable holder. In this way, the trench may distribute air to an outer edge of the consumable holder to maximise the area across which air is guided or channelled.
  • the internal base surface of the consumable holder may comprise a plurality of internal trenches radially outwards from the central aperture.
  • the internal trenches may be arranged about the central aperture such that each respective internal trench is equidistant between two nearest neighbour internal trenches.
  • the trenches may be equally spaced in a circumferential direction of the consumable holder base. This represents a particular arrangement of the internal trenches that may provide improved air flow and distribution.
  • an external surface of the base of the consumable holder may comprise an external trench extending radially outwards from the central aperture.
  • the external trench may provide improved air flow into the central aperture.
  • the external trench may provide a passage for air to reach the central aperture from an outer edge of the consumable holder.
  • the external trench may extend radially outwards to an outer edge of the external base surface of the consumable holder cavity. This may reduce or protect against a blockage or seal forming beneath the consumable holder, for example between the consumable holder and another component of the aerosol generating apparatus such as a baseplate surrounding the heating element.
  • the external base surface of the consumable holder may comprise a plurality of external trenches extending radially outwards from the central aperture.
  • the external trenches may be arranged about the central aperture such that each respective external trench is equidistant between two nearest neighbour internal trenches.
  • the trenches may be equally spaced in a circumferential direction of the consumable holder base. This represents a particular arrangement of the external trenches that may provide better conveyance or guidance of air to the central aperture.
  • the internal and external trenches may be alternately arranged about the central aperture.
  • the internal and external trenches may alternate such that there is an external trench located between each pair of internal trenches, and an internal trench located between each pair of external trenches. This may improve the manufacturability of the consumable holder by enabling a more uniform thickness of the base of the consumable holder (since the internal and external trenches may not overlap in this example).
  • the consumable holder cavity may further comprise a peripheral aperture arranged radially outward of the central aperture.
  • Each of the central aperture and the peripheral aperture may be configured to form an air inlet of the consumable holder cavity. This combination of internal trenches and peripheral apertures may further enhance the uniform distribution of airflow into the consumable holder cavity and across the face of the consumable.
  • the consumable holder cavity may comprise a plurality of peripheral apertures and a plurality of internal trenches extending radially outwards of the central aperture. There may be an equal number of internal trenches and peripheral apertures. The peripheral apertures and the internal trenches may be alternately arranged about the central aperture. In this way, there may be a peripheral aperture located between each pair of internal trenches, and an internal trench located between each pair of peripheral apertures. This may provide a particular distribution of air across the face of the consumable, and may improve the uniformity of airflow into the consumable holder.
  • the aerosol generating apparatus defines a chamber for receiving the consumable holder, and wherein the chamber includes an air inlet.
  • the air inlet of the chamber may be located proximate the base of the consumable holder. Air may flow from the air inlet in a transverse direction of the aerosol generating apparatus to the air inlets of the consumable holder, and may thereby flow from an outer edge of the base of the consumable holder towards the central aperture.
  • a base of the consumable holder is substantially planar.
  • the base is not bowl shaped, but rather has a substantially flat internal and external surface aside from the trenches and/or peripheral and central apertures. This may enable, for example, better engagement with a rod-shaped consumable having a generally flat end face.
  • the heating element may be rod-shaped and extend along a longitudinal axis of the aerosol generating apparatus through the central aperture of the consumable holder.
  • the central aperture and the heating element may each have a circular cross section in a transverse direction of the longitudinal axis.
  • a radius of the central aperture may be, for example, more than 10% greater than a radius of the heating element, more than 20% greater, more than 30% greater, more than 40% greater, more than 50% greater, more than 60% greater, more than 70% greater, more than 80% greater, more than 90% greater, or more than 100% greater.
  • a greater difference between the radius of the heating element and the radius of the central aperture may provide increased airflow through the air inlet into the consumable holder.
  • a radius of the central aperture may be, for example, less than 200% greater than a radius of the heating element, less than 190% greater, less than 180% greater, less than 170% greater, less than 160% greater, less than 150% greater, less than 140% greater, less than 130% greater, less than 120% greater, or less than 110% greater.
  • a lesser difference between the radius of the heating element and the radius of the central aperture may lead to improved retention of the consumable within the cavity by the base of the consumable holder.
  • the difference between the radii may be selected as required to meet the particular airflow requirements of the aerosol generating apparatus.
  • a surface area of each peripheral aperture may be approximately equal to the surface area of the central aperture that is not occupied by the heating element.
  • the surface area of each peripheral aperture may be within 10% of the surface area of central aperture not occupied by the heating element.
  • a consumable holder for use with an aerosol generating apparatus according to the first or second aspects.
  • Fig. 1 is a block system diagram showing an example aerosol generating apparatus.
  • Fig. 2 is a block system diagram showing an example implementation of the apparatus of Fig. 1 , where the aerosol generating apparatus is configured to generate aerosol from a solid precursor.
  • Fig. 3 is a schematic diagram showing an example implementation of the apparatus of Fig. 2.
  • Fig. 4 is a cross-sectional view of a consumable holder according to the present disclosure.
  • Fig. 5 is a top view of a consumable holder according to the present disclosure.
  • Fig. 6 is a top view of another consumable holder according to the present disclosure.
  • Fig. 7 is a top view of a third consumable holder according to the present disclosure
  • Fig. 8 is a cross-section showing a base portion of a consumable holder according to the present disclosure
  • Fig. 9 is a consumable holder according to the present disclosure.
  • Fig. 10 is an exploded view of a cap and a consumable holder according to the present disclosure.
  • Fig. 11 is a cross-sectional view of an aerosol generating apparatus.
  • an "aerosol generating apparatus” may be an apparatus configured to deliver an aerosol to a user for inhalation by the user.
  • the apparatus may add itional ly/alternatively be referred to as a “smoking substitute apparatus”, if it is intended to be used instead of a conventional combustible smoking article.
  • a combustible “smoking article” may refer to a cigarette, cigar, pipe or other article, that produces smoke (an aerosol comprising solid particulates and gas) via heating above the thermal decomposition temperature (typically by combustion and/or pyrolysis).
  • An aerosol generated by the apparatus may comprise an aerosol with particle sizes of 0.2 - 7 microns, or less than 10 microns, or less than 7 microns. This particle size may be achieved by control of one or more of: heater temperature; cooling rate as the vapour condenses to an aerosol; flow properties including turbulence and velocity.
  • the generation of aerosol by the aerosol generating apparatus may be controlled by an input device.
  • the input device may be configured to be user-activated, and may for example include or take the form of an actuator (e.g. actuation button) and/or an airflow sensor.
  • Each occurrence of the aerosol generating apparatus being caused to generate aerosol for a period of time may be referred to as an “activation” of the aerosol generating apparatus.
  • the aerosol generating apparatus may be arranged to allow an amount of aerosol delivered to a user to be varied per activation (as opposed to delivering a fixed dose of aerosol), e.g. by activating an aerosol generating unit of the apparatus for a variable amount of time, e.g. based on the strength/duration of a draw of a user through a flow path of the apparatus (to replicate an effect of smoking a conventional combustible smoking article).
  • the aerosol generating apparatus may be portable. As used herein, the term "portable" may refer to the apparatus being for use when held by a user.
  • an "aerosol generating system” may be a system that includes an aerosol generating apparatus and optionally other circuitry/components associated with the function of the apparatus, e.g. one or more external devices and/or one or more external components (here “external” is intended to mean external to the aerosol generating apparatus).
  • an “external device” and “external component” may include one or more of a: a charging device, a mobile device (which may be connected to the aerosol generating apparatus, e.g. via a wireless or wired connection); a networked-based computer (e.g. a remote server); a cloud-based computer; any other server system.
  • An example aerosol generating system may be a system for managing an aerosol generating apparatus.
  • Such a system may include, for example, a mobile device, a network server, as well as the aerosol generating apparatus.
  • an "aerosol” may include a suspension of precursor, including as one or more of: solid particles; liquid droplets; gas. Said suspension may be in a gas including air.
  • An aerosol herein may generally refer to/include a vapour.
  • An aerosol may include one or more components of the precursor.
  • a “precursor” may include one or more of a: liquid; solid; gel; loose leaf material; other substance.
  • the precursor may be processed by an aerosol generating unit of an aerosol generating apparatus to generate an aerosol.
  • the precursor may include one or more of: an active component; a carrier; a flavouring.
  • the active component may include one or more of nicotine; caffeine; a cannabidiol oil; a non-pharmaceutical formulation, e.g. a formulation which is not for treatment of a disease or physiological malfunction of the human body.
  • the active component may be carried by the carrier, which may be a liquid, including propylene glycol and/or glycerine.
  • flavouring may refer to a component that provides a taste and/or a smell to the user.
  • the flavouring may include one or more of: Ethylvanillin (vanilla); menthol, Isoamyl acetate (banana oil); or other.
  • the precursor may include a substrate, e.g. reconstituted tobacco to carry one or more of the active component; a carrier; a flavouring.
  • a "storage portion” may be a portion of the apparatus adapted to store the precursor. It may be implemented as fluid-holding reservoir or carrier for solid material depending on the implementation of the precursor as defined above.
  • a "flow path" may refer to a path or enclosed passageway through an aerosol generating apparatus, e.g. for delivery of an aerosol to a user.
  • the flow path may be arranged to receive aerosol from an aerosol generating unit.
  • upstream and downstream may be defined in respect of a direction of flow in the flow path, e.g. with an outlet being downstream of an inlet.
  • a "delivery system” may be a system operative to deliver an aerosol to a user.
  • the delivery system may include a mouthpiece and a flow path.
  • a "flow" may refer to a flow in a flow path.
  • a flow may include aerosol generated from the precursor.
  • the flow may include air, which may be induced into the flow path via a puff by a user.
  • a “puff” (or “inhale” or “draw”) by a user may refer to expansion of lungs and/or oral cavity of a user to create a pressure reduction that induces flow through the flow path.
  • an "aerosol generating unit” may refer to a device configured to generate an aerosol from a precursor.
  • the aerosol generating unit may include a unit to generate a vapour directly from the precursor (e.g. a heating system or other system) or an aerosol directly from the precursor (e.g. an atomiser including an ultrasonic system, a flow expansion system operative to carry droplets of the precursor in the flow without using electrical energy or other system).
  • a plurality of aerosol generating units to generate a plurality of aerosols may be present in an aerosol generating apparatus.
  • a “heating system” may refer to an arrangement of at least one heating element, which is operable to aerosolise a precursor once heated.
  • the at least one heating element may be electrically resistive to produce heat from the flow of electrical current therethrough.
  • the at least one heating element may be arranged as a susceptor to produce heat when penetrated by an alternating magnetic field.
  • the heating system may be configured to heat a precursor to below 300 or 350 degrees C, including without combustion.
  • a "consumable” may refer to a unit that includes a precursor.
  • the consumable may include an aerosol generating unit, e.g. it may be arranged as a cartomizer.
  • the consumable may include a mouthpiece.
  • the consumable may include an information carrying medium.
  • liquid or gel implementations of the precursor e.g. an e-liquid
  • the consumable may be referred to as a “capsule” or a “pod” or an “e-liqu id consumable”.
  • the capsule/pod may include a storage portion, e.g. a reservoir or tank, for storage of the precursor.
  • solid material implementations of the precursor e.g.
  • the consumable may be referred to as a “stick” or “package” or “heat-not-burn consumable”.
  • the mouthpiece may be implemented as a filter and the consumable may be arranged to carry the precursor.
  • the consumable may be implemented as a dosage or pre-portioned amount of material, including a loose-leaf product.
  • an "information carrying medium” may include one or more arrangements for storage of information on any suitable medium. Examples include: a computer readable medium; a Radio Frequency Identification (RFID) transponder; codes encoding information, such as optical (e.g. a bar code or QR code) or mechanically read codes (e.g. a configuration of the absence or presents of cut-outs to encode a bit, through which pins or a reader may be inserted).
  • RFID Radio Frequency Identification
  • heat-not-burn may refer to the heating of a precursor, typically tobacco, without combustion, or without substantial combustion (i.e. localised combustion may be experienced of limited portions of the precursor, including of less than 5% of the total volume).
  • an example aerosol generating apparatus 1 includes a power supply 2, for supply of electrical energy.
  • the apparatus 1 includes an aerosol generating unit 4 that is driven by the power supply 2.
  • the power supply 2 may include an electric power supply in the form of a battery and/or an electrical connection to an external power source.
  • the apparatus 1 includes a precursor 6, which in use is aerosolised by the aerosol generating unit 4 to generate an aerosol.
  • the apparatus 2 includes a delivery system 8 for delivery of the aerosol to a user.
  • Electrical circuitry (not shown in figure 1 ) may be implemented to control the interoperability of the power supply 4 and aerosol generating unit 6.
  • the power supply 2 may be omitted since, e.g. an aerosol generating unit implemented as an atomiser with flow expansion may not require a power supply.
  • Fig. 2 shows an implementation of the apparatus 1 of Fig. 1 , where the aerosol generating apparatus 1 is configured to generate aerosol by a-heat not-burn process.
  • the apparatus 1 includes a device body 50 and a consumable 70.
  • the body 50 includes the power supply 4 and a heating system 52.
  • the heating system 52 includes at least one heating element 54.
  • the body may additionally include any one or more of electrical circuitry 56, a memory 58, a wireless interface 60, one or more other components 62.
  • the electrical circuitry 56 may include a processing resource for controlling one or more operations of the body 50, e.g. based on instructions stored in the memory 58.
  • the wireless interface 60 may be configured to communicate wirelessly with an external (e.g. mobile) device, e.g. via Bluetooth.
  • an external (e.g. mobile) device e.g. via Bluetooth.
  • the other component(s) 62 may include an actuator, one or more user interface devices configured to convey information to a user and/or a charging port, for example (see e.g. Fig. 3).
  • the body 50 is configured to engage with the consumable 70 such that the at least one heating element 54 of the heating system 52 penetrates into the solid precursor 6 of the consumable.
  • a user may activate the aerosol generating apparatus 1 to cause the heating system 52 of the body 50 to cause the at least one heating element 54 to heat the solid precursor 6 of the consumable (without combusting it) by conductive heat transfer, to generate an aerosol which is inhaled by the user.
  • Fig. 3 shows an example implementation of the aerosol generating apparatus 1 of Fig. 2.
  • the consumable 70 is implemented as a stick, which is engaged with the body 50 by inserting the stick into an aperture at a top end 53 of the body 50, which causes the at least one heating element 54 of the heating system 52 to penetrate into the solid precursor 6.
  • the consumable 70 includes the solid precursor 6 proximal to the body 50, and a filter distal to the body 50.
  • the filter serves as the mouthpiece of the consumable 70 and thus the apparatus 1 as a whole.
  • the solid precursor 6 may be a reconstituted tobacco formulation.
  • the at least one heating element 54 is a rod-shaped element with a circular transverse profile. Other heating element shapes are possible, e.g. the at least one heating element may be blade-shaped (with a rectangular transverse profile) or tube-shaped (e.g. with a hollow transverse profile).
  • the body 50 includes a cap 51 .
  • the cap 51 In use the cap 51 is engaged at a top end 53 of the body 50.
  • the cap 51 is moveable relative to the body 50.
  • the cap 51 is slidable and can slide along a longitudinal axis of the body 50.
  • the body 50 also includes an actuator 55 on an outer surface of the body 50.
  • the actuator 55 has the form of a button.
  • the body 50 also includes a user interface device configured to convey information to a user.
  • the user interface device is implemented as a plurality of lights 57, which may e.g. be configured to illuminate when the apparatus 1 is activated and/or to indicate a charging state of the power supply 4.
  • Other user interface devices are possible, e.g. to convey information haptically or audibly to a user.
  • the body may also include an airflow sensor which detects airflow in the aerosol generating apparatus 1 (e.g. caused by a user inhaling through the consumable 70). This may be used to count puffs, for example.
  • an airflow sensor which detects airflow in the aerosol generating apparatus 1 (e.g. caused by a user inhaling through the consumable 70). This may be used to count puffs, for example.
  • the consumable 70 includes a flow path which transmits aerosol generated by the at least one heating element 54 to the mouthpiece of the consumable.
  • the aerosol generating unit 4 is provided by the above-described heating system 52 and the delivery system 8 is provided by the above-described flow path and mouthpiece of the consumable 70.
  • Fig. 4 illustrates a side-view
  • Fig. 5 a top view of an embodiment of a consumable holder 100.
  • the consumable holder includes a cup shaped cavity 110 having walls 120 and a base 130.
  • the base 130 of this embodiment comprises a central aperture 140, a plurality of peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f, and a plurality of internal trenches 160a, 160b, 160c, 160d, 160e, 160f.
  • the central aperture 140 and the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f each form an air inlet of the cavity 110.
  • the number of peripheral apertures 150 and/or internal trenches 160 may be different from the illustrated embodiment.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f may be omitted, such that the consumable holder includes only the central aperture 140 and peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f (see Fig. 6).
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f may be omitted, such that the consumable holder includes only the central aperture 140 and internal trenches 160a, 160b, 160c, 160d, 160e, 160f (see Fig. 7).
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f, and/or internal trenches 160a, 160b, 160c, 160d, 160e, 160f are each arranged to surround the central aperture 140, and are equally spaced about the central aperture.
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f and/or internal trenches 160a, 160b, 160c, 160d, 160e, 160f are arranged along a circular path.
  • Each peripheral aperture is equidistant to the two nearest neighbouring peripheral apertures.
  • Each internal trench is equidistant to the two nearest neighbouring peripheral apertures.
  • the internal trenches and peripheral apertures alternate with one another.
  • the spacing may not be uniform, for example, to better direct or channel airflow across the base 130 of the consumable holder 100.
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f are of uniform size (i.e. cross-sectional area) and shape.
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f may be of a non-uniform size.
  • some of the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f may be of a different shape, or may be of a different size to some of the others of the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f. This may better direct air into the cavity 110, for example by introducing a directionality or vorticity into the airflow.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f extend from the central aperture 140 to the wall 120 of the cavity 1 10. In other words, the internal trenches extend from the central aperture 140 to an outer edge of the base 130 of the consumable holder 100.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f may not extend to the wall 130.
  • the internal trenches may extend only 75% of the distance to the wall 130, or only 50% of the distance to the wall 130.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f may be of different lengths. For example some of the internal trenches 160a, 160b, 160c, 160d, 160e, 160f may extend to the wall 130, while others may extend only part way to the wall 130.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f broaden or flare towards an outer end of the internal trenches 160a, 160b, 160c, 160d, 160e, 160f (i.e. the end of the internal trenches 160a, 160b, 160c, 160d, 160e, 160f proximate the wall 130).
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f have a slanted wall, such that each of the internal trenches 160a, 160b, 160c, 160d, 160e, 160f is narrower at a base end of the internal trench 160a, 160b, 160c, 160d, 160e, 160f than at a top end of the internal trench 160a, 160b, 160c, 160d, 160e, 160f.
  • Fig. 8 further illustrates that the consumable holder 100 includes external trenches 170a, 170b, 170c, 170d, 170e, 170f on an outer surface of the base 130 (on the central portions of 170a, b, and c are visible in Fig. 8). This is also shown in Fig. 9.
  • the external trenches 170a, 170b, 170c, 170d, 170e, 170f extend outwards from the central aperture 140, and are arranged to direct air from an air inlet of the aerosol generating apparatus 1 to the air inlet(s) of the consumable holder 100.
  • air may flow inwards along the external trenches 170a, 170b, 170c, 170d, 170e, 170f towards the central aperture 140.
  • the external trenches 170a, 170b, 170c, 170d, 170e, 170f are arranged to be equidistant to the two nearest neighbouring external trenches.
  • the internal trenches 160a, 160b, 160c, 160d, 160e, 160f and external trenches 170a, 170b, 170c, 170d, 170e, 170f in this configuration are alternately arranged about the base 130 of the consumable holder 100.
  • the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f are arranged to coincide with the external trenches 170a, 170b, 170c, 170d, 170e, 170f such that the external trenches 170a, 170b, 170c, 170d, 170e, 170f may channel air to the peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f and into the cavity 110 of the consumable holder 100.
  • peripheral apertures 150a, 150b, 150c, 150d, 150e, 150f, internal trenches 160a, 160b, 160c, 160d, 160e, 160f and external trenches 170a, 170b, 170c, 170d, 170e, 170f are also possible.
  • Figs. 10 and 11 illustrate the arrangement of the consumable holder within the cap 51 of an aerosol generating apparatus 1.
  • the heating element 54 extends from the body 51 of the aerosol generating apparatus 1 and through the central aperture 140 to the cavity 110 of the consumable holder 100.
  • An air inlet 64 to the aerosol generating apparatus 1 is formed between the body 50 and the cap 51 , and air may be drawn into the air inlet 64 and in a transverse direction to the air inlet(s) of the consumable holder 100.
  • the external trenches 170a, 170b, 170c, 170d, 170e, 170f may improve this airflow by reducing the effect of fouling or debris between the consumable holder 100 and an end face 66 of the body 50.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne des configurations d'un support de consommable (100) pour une distribution d'air améliorée à travers une base (130) du support de consommable (100) pour ainsi améliorer l'écoulement d'air à travers un consommable (70). L'invention concerne un appareil de génération d'aérosol (1), l'appareil de génération d'aérosol (1) étant allongé et ayant un axe longitudinal et un axe transversal perpendiculaire à l'axe longitudinal. L'appareil de génération d'aérosol (1) comprend un élément chauffant (54) et un support de consommable (100) définissant une cavité de réception de consommable en forme de coupelle (110) pour recevoir et positionner un consommable (70) par rapport à l'élément chauffant (54). La cavité (110) a une paroi (120) s'étendant longitudinalement à partir d'une base (130). La base (130) comprend une ouverture centrale (140) à travers laquelle s'étend l'élément chauffant (54) ; et une ouverture périphérique (150) espacée de l'ouverture centrale (140) dans une direction transversale. L'ouverture centrale (140) et de l'ouverture périphérique (150) sont conçues pour former une entrée d'air de la cavité (110) du support de consommable (100). L'invention concerne également un support de consommable (100), la base (130) comprenant une ouverture centrale (140), et une tranchée interne (160) s'étendant radialement vers l'extérieur à partir de l'ouverture centrale.
PCT/EP2023/073302 2022-08-31 2023-08-24 Appareil de génération d'aérosol WO2024046879A1 (fr)

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EP22193271 2022-08-31
EP22193271.8 2022-08-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104576A1 (fr) * 2017-11-30 2019-06-06 惠州市吉瑞科技有限公司深圳分公司 Dispositif d'atomisation électronique
WO2020226458A2 (fr) * 2019-05-08 2020-11-12 Kt&G Corporation Dispositif de génération d'aérosol et système de génération d'aérosol
EP3799745A1 (fr) * 2018-06-29 2021-04-07 China Tobacco Guangdong Industrial Co., Ltd. Dispositif de chauffage électrique ayant un canal d'écoulement d'air amélioré
US20220095684A1 (en) * 2019-03-22 2022-03-31 Nerudia Limited Smoking Substitute System
WO2022114682A1 (fr) * 2020-11-25 2022-06-02 Kt&G Corporation Dispositif de génération d'aérosol

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104576A1 (fr) * 2017-11-30 2019-06-06 惠州市吉瑞科技有限公司深圳分公司 Dispositif d'atomisation électronique
EP3799745A1 (fr) * 2018-06-29 2021-04-07 China Tobacco Guangdong Industrial Co., Ltd. Dispositif de chauffage électrique ayant un canal d'écoulement d'air amélioré
US20220095684A1 (en) * 2019-03-22 2022-03-31 Nerudia Limited Smoking Substitute System
WO2020226458A2 (fr) * 2019-05-08 2020-11-12 Kt&G Corporation Dispositif de génération d'aérosol et système de génération d'aérosol
WO2022114682A1 (fr) * 2020-11-25 2022-06-02 Kt&G Corporation Dispositif de génération d'aérosol

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