WO2024046869A1 - Dispositif de génération d'aérosol - Google Patents

Dispositif de génération d'aérosol Download PDF

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Publication number
WO2024046869A1
WO2024046869A1 PCT/EP2023/073263 EP2023073263W WO2024046869A1 WO 2024046869 A1 WO2024046869 A1 WO 2024046869A1 EP 2023073263 W EP2023073263 W EP 2023073263W WO 2024046869 A1 WO2024046869 A1 WO 2024046869A1
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WO
WIPO (PCT)
Prior art keywords
consumable
wall
heater
receiving cavity
aerosol generating
Prior art date
Application number
PCT/EP2023/073263
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 WO2024046869A1 publication Critical patent/WO2024046869A1/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
    • 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 device.
  • 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 heat generated using 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 that a portion of the heat generated using the aerosol generating unit may be lost to the environment. This may lead to reduced thermal efficiency, and lower power usage efficiency.
  • the present disclosure provides an aerosol generating device comprising a heater housing and a consumable engagement component located within the heater housing, the consumable engagement component comprising an inner wall defining a receiving cavity, the receiving cavity configured to house a heater and engage with a consumable, the consumable including an aerosol generating substrate for heating by the heater and an outer wall located between the inner wall and the heater housing, the outer wall defining an insulating cavity, the insulating cavity located between the receiving cavity and the heater housing to provide thermal insulation between the receiving cavity and the heater housing, wherein the inner wall and the outer wall are integrally formed from the same material.
  • the inner wall may delimit the receiving cavity.
  • the inner surface of the inner wall may delimit the receiving cavity.
  • the outer wall may delimit the insulating cavity.
  • the inner surface of the outer wall and the outer surface of the inner wall may together delimit the insulating cavity.
  • Integrally formed from the same material may include being formed together in a single mould.
  • the inner wall and the outer wall may be formed by injection moulding, transfer moulding or melt moulding.
  • the consumable engagement component further comprises an insulation opening into the insulating cavity, the insulation opening connecting the insulating cavity to the ambient atmosphere.
  • the insulating cavity is not fully enclosed.
  • the manufacture of the aerosol generating device may be simplified.
  • moulding of the consumable engagement component may be facilitated.
  • the mould from which the consumable engagement component may be formed may comprise a protruding element which creates the insulating cavity.
  • the protruding element may be connected to another portion of the mould, creating the insulation opening.
  • air has advantageous thermal insulation properties.
  • the insulating cavity and the receiving cavity open towards opposite directions.
  • the insulation opening and the consumable receiving opening face in opposite directions to one another, the consumable receiving opening being configured to receive the consumable therethrough.
  • Opposite directions may be directions which are antiparallel to one another.
  • Opposite directions may be directions which are approximately antiparallel to one another. In this way, the manufacture of the aerosol generating device may be simplified. In particular, moulding of the consumable engagement component may be facilitated.
  • the inner wall is tapered.
  • the inner wall is thicker at a first end of the inner wall than at a second end of the inner wall.
  • the first end of the inner wall may be adjacent the consumable receiving opening.
  • the second end of the inner wall may adjacent a base of the inner wall which is configured to engage with the device. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the outer wall is tapered.
  • the outer wall is thicker at a first end of the inner wall than at a second end of the outer wall.
  • the first end of the outer wall may be the end closest to the consumable receiving opening.
  • the second end of the outer wall may adjacent a base of the outer wall which is configured to engage with the device. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the insulating cavity is tapered. In other words, in some examples the insulating cavity is wider at a second end of the insulating cavity than at a first end of the insulating cavity.
  • the first end of the receiving cavity may be the end closest to the consumable receiving opening.
  • the second end of the receiving cavity may be adjacent a base of the outer wall which is configured to engage with the device. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the tapering of the insulating cavity is a result of the inner wall being tapered.
  • the tapering of the insulating cavity is a result of the outer wall being tapered.
  • the tapering of the insulating cavity is a result of both the inner wall and the outer wall being tapered.
  • the receiving cavity is tapered. In other words, in some examples the receiving cavity is wider at a first end of the receiving cavity than at a second end of the receiving cavity.
  • the first end of the receiving cavity may be adjacent the consumable receiving opening.
  • the second end of the receiving cavity may adjacent a base of the inner wall which is configured to engage with the device. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the tapering of the receiving cavity is a result of the inner wall being tapered.
  • the direction along which the insulating cavity is tapered is opposite to the direction along which the outer wall is tapered. In some examples, the direction along which the insulating cavity is tapered is opposite to the direction along which the inner wall is tapered.
  • the receiving cavity and the insulating cavity are longitudinally elongate along the same direction.
  • the respective longitudinal axes of the receiving cavity and the insulating cavity may be aligned. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the consumable engagement component and the heater housing comprise respective complementary interlocking elements.
  • the consumable engagement component and the heater housing comprise respective elements which allow the consumable engagement component and the heater housing to be fixed together. In this way the manufacture of the aerosol generating device may be simplified.
  • the consumable engagement component comprises interlocking grooves and the heater housing comprises complementary interlocking protrusions for interlocking with the interlocking grooves of the consumable engagement component.
  • the consumable engagement component comprises interlocking protrusions and the heater housing comprises complementary interlocking grooves for interlocking with the interlocking protrusions of the consumable engagement component.
  • the consumable engagement component is fixed within the heater housing with a screw. In some examples, the consumable engagement component is integrally formed from the same material. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the aerosol generating device comprises a heater.
  • the receiving cavity is configured to house the heater.
  • the heater extends from a body of the device to protrude into the receiving cavity.
  • the inner wall includes a heater-receiving aperture at a base of the inner wall through which the heater protrudes into the receiving cavity.
  • the base of the inner wall may be configured to engage with an end of a consumable inserted into the receiving cavity. For example, the end of the consumable may abut the base of the inner wall, in use.
  • the depth of the insulating cavity is approximately equal to the length of the portion of the heater which protrudes into the receiving cavity when the heater is housed within the receiving cavity. In this way, there may be reduced heat loss through the heater housing.
  • Approximately equal may mean that one value is greater than 70%, 71%, 72, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92, 93%, 94%, 95%, 96%, 97%, 98%, or 99% the size of the other value.
  • Approximately equal may mean that one value is less than 100%, 99%, 98%, 97%, 96%, 95%, 94%, 93%, 92%, 91%, 90%, 89%, 88%, 87%, 86%, 85%, 84%, 83%, 82%, 81 %, or 80% of the size of the other value.
  • Approximately equal may mean that one value is within 1 cm, 0.9 cm, 0.8 cm, 0.7 cm, 0.6 cm, 0.5 cm, 0.4 cm, 0.3 cm, 0.2 cm, or 0.1cm of the size of the other value.
  • the depth of the insulating cavity is longer than the length of the portion of the heater which protrudes into the receiving cavity when the heater is housed within the receiving cavity. In this way, there may be reduced heat loss through the heater housing.
  • the heater housing is the housing of a cap of the device.
  • the consumable engagement component may form part of a cap of the device.
  • the cap is movably coupled to the body. In this way, cleaning of the aerosol generating device may be facilitated.
  • the cap is slidably coupled to the body.
  • the inner wall and the outer wall are integrally formed from a thermoplastic material. In some examples, the inner wall and the outer wall are integrally formed from polyetheretherketone (PEEK). In this way, the consumable engagement component may be made from a thermally insulating material which is highly resistant to thermal degradation. In some examples, the inner wall may extend circumferentially around the circumference of the receiving cavity. In this way, a consumable inserted into the receiving cavity may be supported from all sides.
  • PEEK polyetheretherketone
  • the inner wall forms a receiving cavity with a tubular shape.
  • the shape of the inner wall may be a frustum.
  • a cross sectional shape of the receiving cavity perpendicular to the longitudinal axis of the receiving cavity is approximately circular.
  • An approximate circle may be a rounded shape wherein the smallest diameter is between 80% and 100% the size of the largest diameter.
  • An approximate circle may be a rounded shape wherein the smallest diameter is between 90% and 100% the size of the largest diameter.
  • An approximate circle may be a rounded shape wherein the smallest diameter is between 95% and 100% the size of the largest diameter.
  • the shape of the receiving cavity is complementary to the shape of a consumable for insertion within the receiving cavity.
  • the outer wall extends circumferentially around a circumference of the inner wall. In this way, there may be reduced heat loss through the heater housing.
  • the insulation opening extends circumferentially around a circumference of the inner wall. In this way, the manufacture of the aerosol generating device may be simplified. In particular, the moulding of the consumable engagement component may be facilitated.
  • the aerosol generating device is a heat-not-burn device which is configured to generate aerosol by a heat-not-burn process
  • the present disclosure provides a consumable engagement component for use in an aerosol generating device, the consumable engagement component comprising an inner wall defining a receiving cavity, the receiving cavity configured to house a heater and engage with a consumable, the consumable including an aerosol generating substrate for heating with the heater and an outer wall located adjacent the inner wall externally to the receiving cavity, the outer wall defining an insulating cavity, the insulating cavity located between the inner wall and the outer wall to provide thermal insulation to an external surface of the inner wall, wherein the inner wall and the outer wall are integrally formed from the same material.
  • the consumable engagement component includes one or more of the features disclosed herein with reference to the aerosol generating device disclosed herein.
  • the present disclosure provides an aerosol generating system comprising an aerosol generating device, the aerosol generating device including one or more of the features disclosed herein.
  • the aerosol generating system further comprises a consumable the consumable including an aerosol forming substrate for heating with a heater, and the consumable insertable into the receiving cavity of the consumable engagement component.
  • the present disclosure provides a method of manufacturing an aerosol generating device, the aerosol generating device including one or more of the features disclosed herein, wherein the method includes manufacturing a consumable engagement component, the consumable engagement component including one or more of the features disclosed herein.
  • 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 cut away view of an example embodiment of a consumable engagement component.
  • Fig. 5 is a cut away view of an example embodiment of an aerosol generating device.
  • Fig. 6 is a perspective view of an example embodiment of a consumable engagement component.
  • 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 itionally/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.
  • 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.
  • the heating element may be referred to as a “heater”.
  • 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-liquid 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 54 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.
  • 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 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 apparatus 1 includes a cap 51 .
  • the cap 51 In use the cap 51 is engaged at a top end 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 50 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.
  • the present disclosure provides an aerosol generating device 100 that comprises a consumable engagement component 102.
  • Fig. 4 shows a cut-away view of an example embodiment of a consumable engagement component 102 which may be included in the aerosol generating device 100.
  • the aerosol generating device 100 comprises a heater housing 104 (not shown in Fig. 4).
  • An example of a heater housing 104 is shown in Fig. 5, as discussed below, within which the consumable engagement component 102 is located.
  • the consumable engagement component 102 comprises an inner wall 106 defining a receiving cavity 108.
  • the receiving cavity 108 is configured to house a heater 54 and to engage with a consumable 70.
  • the receiving cavity 108 is configured to house a heater 54 which protrudes through a heater receiving aperture 110 in the base of the inner wall 106, and the receiving cavity 108 is configured to engage with a consumable 70 by the shape of the receiving cavity 108 being complementary to the shape of a consumable 70 for insertion within the receiving cavity 108 (as discussed further below with reference to Fig. 9).
  • a consumable 70 can be inserted into the receiving cavity 108 through a consumable receiving opening (not visible in the figures) in the consumable engagement component 102.
  • the consumable engagement component 102 further comprises an outer wall 114 located between the inner wall 106 and the heater housing 104 (not shown in Fig. 4, but an example of a heater housing 104 is shown in Fig. 5 as discussed below).
  • the outer wall 114 defines an insulating cavity 116 which is located between the receiving cavity 108 and the heater housing 104.
  • the insulating cavity 116 provides thermal insulation between the receiving cavity 108 and the heater housing 104.
  • the insulation is provided around the receiving cavity 108.
  • the insulating cavity 116 reduces heat passing from the receiving cavity 108 to the heater housing 104 when a heater 54 housed within the receiving cavity 108 is heating a consumable 70 engaged within the receiving cavity 108.
  • the insulating cavity 116 reduces heat loss and restricts the heater housing 104 from heating up.
  • the inner wall 106 and the outer wall 114 are integrally formed of the same material.
  • the integral formation of the inner wall 106 and the outer wall 114 facilitates the manufacture of the aerosol generating device 100. In this way, thermal insulation is provided around the receiving cavity 108 without a complex inner structure of the aerosol generating device or a separate thermal insulation component.
  • the consumable engagement component 102 further comprises an insulation opening 118 into the insulating cavity 116.
  • the insulation opening 118 connects the insulating cavity 116 to the ambient atmosphere.
  • the presence of the insulation opening 118 allows the manufacture of the consumable engagement component 102 to be simplified, as open cavities may be easier to mould than closed cavities. Furthermore, the presence of air in the insulating cavity 116 provides a thermal insulating effect.
  • the insulating cavity 116 and the receiving cavity 108 open towards opposite directions.
  • the insulation opening 118 and a consumable receiving opening face in opposite directions to one another.
  • the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of the consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the inner wall 106 is tapered. In this way, the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of the consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the outer wall 114 is tapered. In this way, the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of the consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the insulating cavity 116 is tapered. In this way, the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of the consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the tapering of the insulating cavity 116 is caused by the tapering of the inner wall 106 and the outer wall 114.
  • the receiving cavity 108 is tapered.
  • the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of the consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the tapering of the insulating cavity 116 is caused by the tapering of the inner wall 106 and the tapering of the outer wall 1 14.
  • the receiving cavity 108 and the insulating cavity 116 are longitudinally elongate along the same direction. In this way, the moulding of the consumable engagement component 102 is facilitated, as the removal of the mould (used to create the shape of a consumable engagement component 102) from the moulded consumable engagement component 102 is facilitated.
  • the consumable engagement component 102 comprises interlocking grooves 120a and interlocking protrusions 122a which allow the consumable engagement component 102 to be mechanically fixed within the heater housing 104, as is described in more detail below with reference to Fig. 5.
  • Fig. 5 shows a cut away view of a portion of an aerosol generating device 100 according to an example embodiment.
  • the consumable engagement component 102 is located within a heater housing 104 of the aerosol generating device 100.
  • the heater housing 104 is the housing of a cap 51 of the device.
  • the aerosol generating device 100 comprises a heater 54 which extends from a body 50 of the device. The heater 54 is shown protruding through the heater receiving aperture 110 in the base of the inner wall 106 of the consumable engagement component 102.
  • the cap 51 is slidably coupled to the body 50.
  • a body engaging portion 124 of the cap 51 slides within a cap engaging portion 126 of the body 50.
  • the cap 51 is slidable between an open position in which access is provided to the heater 54, and a closed position in which the cap 51 partially encloses the heater 54. In this way, a portion of the heater 54 can be accessed when the cap 51 is slid upwards away from the body 50, thus facilitating cleaning of the heater 54.
  • the heater 54 moves through the heater receiving aperture 110.
  • the depth of the insulating cavity 116 is approximately equal to the length of the portion of the heater 54 which protrudes into the receiving cavity 108. In this way, heat loss through the heater housing 104 is inhibited, as approximately the whole length of the heater 54 is surrounded by the insulating cavity 116.
  • the consumable engagement component 102 and the heater housing 104 comprise respective complementary interlocking grooves 120a/b and interlocking protrusions 122a/b which allow the consumable engagement component 102 and the heater housing 104 to be mechanically fixed together. In this way the manufacture of the aerosol generating device 100 may be simplified.
  • the consumable engagement component 102 is integrally formed from the same material. That is, the outer wall 114, the inner wall 106, and the interlocking grooves 120a/b and interlocking protrusions 122a/b are integrally formed from the same material. In this way, the manufacture of the consumable engagement component 102 is simplified.
  • the consumable engagement component 102 is integrally formed from polyetheretherketone (PEEK) which is thermally insulating and highly resistant to thermal degradation.
  • Fig. 6 is a perspective view of an example embodiment of a consumable engagement component 102.
  • the inner wall 106 forms a tubular shape extending circumferentially around the entire circumference of the receiving cavity 108 (not visible in Fig. 6), such that the cross section of the receiving cavity 108 taken perpendicular to the longitudinal axis of the receiving is approximately a circle.
  • the tubular shape of the inner wall 106 is a frustum.
  • a consumable 70 inserted into the receiving cavity 108 may be supported from all sides by the inner wall 106.
  • the shape of the receiving cavity 108 is designed to be complementary to the shape of a consumable 70 for insertion within the receiving cavity 108.
  • the outer wall 114 extends circumferentially around the entire circumference of the inner wall 106. In this way, heat loss may be reduced around the entire circumference of the receiving cavity 108.
  • the insulation opening 118 also extends circumferentially around the entire circumference of the inner wall 106. In this way, the moulding of the consumable engagement component 102 is facilitated.
  • the aerosol generating device may have smaller dimensions.

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  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un dispositif de génération d'aérosol comprenant un boîtier de dispositif chauffant et un élément de mise en prise de consommable (102) situé à l'intérieur du boîtier de dispositif chauffant. L'élément de mise en prise de consommable comprend une paroi interne (106) définissant une cavité de réception (108). La cavité de réception est configurée pour recevoir un dispositif chauffant et venir en prise avec un consommable, le consommable comprenant un substrat de génération d'aérosol pour une chauffe par le dispositif chauffant. L'élément de mise en prise de consommable comprend en outre une paroi externe (114) située entre la paroi interne et le boîtier de dispositif chauffant, la paroi externe définissant une cavité isolante (1116). La cavité isolante est située entre la cavité de réception et le boîtier de dispositif chauffant pour fournir une isolation thermique entre la cavité de réception et le boîtier de dispositif chauffant. La paroi interne et la paroi externe sont formées d'un seul tenant à partir du même matériau.
PCT/EP2023/073263 2022-08-31 2023-08-24 Dispositif de génération d'aérosol WO2024046869A1 (fr)

Applications Claiming Priority (2)

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EP22193258 2022-08-31
EP22193258.5 2022-08-31

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WO2024046869A1 true WO2024046869A1 (fr) 2024-03-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200093177A1 (en) * 2016-12-16 2020-03-26 Kt & G Corporation Aerosol generation method and apparatus
WO2020193178A1 (fr) * 2019-03-22 2020-10-01 Nerudia Limited Système de substitution pour fumeurs
WO2021162224A1 (fr) * 2020-02-14 2021-08-19 Kt&G Corporation Dispositif de génération d'aérosol et système de génération d'aérosol
CN216568340U (zh) * 2021-11-05 2022-05-24 深圳市卓力能技术有限公司 内托支架、气溶胶发生装置及气溶胶形成基质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200093177A1 (en) * 2016-12-16 2020-03-26 Kt & G Corporation Aerosol generation method and apparatus
WO2020193178A1 (fr) * 2019-03-22 2020-10-01 Nerudia Limited Système de substitution pour fumeurs
WO2021162224A1 (fr) * 2020-02-14 2021-08-19 Kt&G Corporation Dispositif de génération d'aérosol et système de génération d'aérosol
CN216568340U (zh) * 2021-11-05 2022-05-24 深圳市卓力能技术有限公司 内托支架、气溶胶发生装置及气溶胶形成基质

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