EP4384029A2 - Aerosolbereitstellungssystem - Google Patents

Aerosolbereitstellungssystem

Info

Publication number
EP4384029A2
EP4384029A2 EP22744503.8A EP22744503A EP4384029A2 EP 4384029 A2 EP4384029 A2 EP 4384029A2 EP 22744503 A EP22744503 A EP 22744503A EP 4384029 A2 EP4384029 A2 EP 4384029A2
Authority
EP
European Patent Office
Prior art keywords
air
receptacle
plenum chamber
air inlet
cartridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22744503.8A
Other languages
English (en)
French (fr)
Inventor
Jared ALLER
Tom Woodman
Ping Chou Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
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 Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of EP4384029A2 publication Critical patent/EP4384029A2/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—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
    • 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
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/51—Arrangement of sensors

Definitions

  • the present disclosure relates to aerosol provision systems such as, but not limited to, nicotine delivery systems (e.g. electronic cigarettes and the like).
  • nicotine delivery systems e.g. electronic cigarettes and the like.
  • Electronic aerosol provision systems often employ an electronic cigarette (e-cigarette) or more generally an aerosol provision device.
  • an aerosol provision device typically contains aerosolizable material, such as a reservoir of fluid or liquid containing a formulation, typically but not necessarily including nicotine, or a solid material such as a tobacco-based product, from which a vapour/aerosol is generated for inhalation by a user, for example through heat vaporisation.
  • an aerosol provision system will typically comprise an aerosol provision device comprising a vaporiser, e.g. a heating element, arranged to vaporise a portion of aerosolizable material to generate a vapour.
  • the vapour may be passed through flavoring material to add flavor to the vapour (if the aerosolizable material was not itself flavored), after which the (flavored) vapour may be then delivered to a user via a mouthpiece from the aerosol provision device.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material
  • the body comprising: a receptacle for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol
  • the receptacle comprises: at least one receptacle wall; at least one air inlet, wherein each air inlet extends through the at least one receptacle wall; and a plenum chamber; wherein the receptacle is configured for allowing the cartridge to engage against a portion of the plenum chamber when the receptacle is releasably receiving the cartridge, for then allowing a flow of air to pass from outside of the receptacle, through the at least one air inlet, into the receptacle, and then into the plenum chamber.
  • an aerosol provision system comprising the body according to the first aspect, the aerosol provision system further comprising a cartridge configured to contain aerosolizable material for aerosolising into the aerosol, wherein the aerosol provision system is configured for allowing the flow of air to pass from the plenum chamber into an air inlet of the cartridge, when the cartridge is engaged against the portion of the plenum chamber.
  • a method of directing a flow of air through an aerosol provision system comprises: causing a flow of air to pass through at least one air inlet from a body of the aerosol provision system; delivering the flow of air from the at least one air inlet into a plenum chamber of the body; and delivering the flow of air from the plenum chamber into an air inlet of a cartridge which is engaged against a portion of the plenum chamber.
  • Figure 1 schematically represents in perspective view an aerosol provision device comprising a cartridge and control unit (shown separated) in accordance with certain embodiments of the disclosure
  • Figure 2 schematically represents in exploded perspective view of components of the cartridge of the aerosol provision system of Figure 1;
  • Figures 3A to 3C schematically represent various cross-section views of a housing part of the cartridge of the aerosol provision device of Figure 1;
  • Figures 4A and 4B schematically represent a perspective view and a plan view of a dividing wall element of the cartridge of the aerosol provision device of Figure 1;
  • Figures 5 A to 5C schematically represent two perspective views and a plan view of a resilient plug of the cartridge of the aerosol provision device of Figure 1;
  • Figures 6A and 6B schematically represent a perspective view and a plan view of a bottom cap of the cartridge of the aerosol provision device of Figure 1;
  • Figure 7A schematically represents an embodiment of aerosol provision system, similar to those shown in Figures 1-6B, when in a first position, and which comprises a plenum chamber, in accordance with certain embodiments of the disclosure
  • Figure 7B schematically represents an embodiment of aerosol provision system, similar to that shown in Figure 7A, when in a second position, and which comprises a plenum chamber, in accordance with certain embodiments of the disclosure
  • Figure 7C schematically represents a sectional view of a portion of the aerosol provision system from Figure 7A when taken about plane 7C-7C from Figure 7A, in accordance with certain embodiments of the disclosure;
  • Figure 7D schematically represents a perspective view of a portion of the aerosol provision system from Figures 7A-7C, in accordance with certain embodiments of the disclosure
  • Figure 7E represents a perspective view of the plenum chamber illustrated in Figures 7A- 7D, in accordance with certain embodiments of the disclosure.
  • Figure 8 schematically represents a flowchart illustrating a potential method of air flow through the aerosol provision systems herein described, in accordance with certain embodiments of the disclosure.
  • a “non-combustible” aerosol provision device is one where a constituent aerosolizable material of the aerosol provision device (or component thereof) is not combusted or burned in order to facilitate delivery to a user.
  • Aerosolizable material which also may be referred to herein as aerosol generating material or aerosol precursor material, is material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way.
  • the aerosolizable material may also be flavored, in some embodiments.
  • e-cigarette or “electronic cigarette” may sometimes be used, but it will be appreciated this term may be used interchangeably with an aerosol provision device.
  • An electronic cigarette may also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosolizable material is not a requirement.
  • END electronic nicotine delivery system
  • the aerosol provision device is a hybrid device configured to generate aerosol using a combination of aerosolizable materials, one or a plurality of which may be heated.
  • the hybrid device comprises a liquid or gel aerosolizable material and a solid aerosolizable material.
  • the solid aerosolizable material may comprise, for example, tobacco or a non-tobacco product.
  • the (non-combustible) aerosol provision device may comprise a cartridge/consumable part and a body/ reusable part, which is configured to releasably engage with the cartridge/consumable part.
  • the aerosol provision device may be provided with a means for powering a vaporiser therein, and there may be provided an aerosolizable material transport element for receiving the aerosolizable material that is to be vaporised.
  • the aerosol provision device may also be provided with a reservoir for containing aerosolizable material, and in some embodiments a further reservoir for containing flavoring material for flavoring a generated vapour from the aerosol provision device.
  • the vaporiser may be a heater/heating element capable of interacting with the aerosolizable material so as to release one or more volatiles from the aerosolizable material to form a vapour/aerosol.
  • the vaporiser is capable of generating an aerosol from the aerosolizable material without heating.
  • the vaporiser may be capable of generating a vapour/aerosol from the aerosolizable material without applying heat thereto, for example via one or more of vibrational, mechanical, pressurisation or electrostatic means.
  • the substance to be delivered may be an aerosolizable material which may comprise an active constituent, a carrier constituent and optionally one or more other functional constituents.
  • the active constituent may comprise one or more physiologically and/or olfactory active constituents which are included in the aerosolizable material in order to achieve a physiological and/or olfactory response in the user.
  • the active constituent may for example be selected from nutraceuticals, nootropics, and psychoactives.
  • the active constituent may be naturally occurring or synthetically obtained.
  • the active constituent may comprise for example nicotine, caffeine, taurine, theine, a vitamin such as B6 or Bl 2 or C, melatonin, a cannabinoid, or a constituent, derivative, or combinations thereof.
  • the active constituent may comprise a constituent, derivative or extract of tobacco or of another botanical.
  • the active constituent is a physiologically active constituent and may be selected from nicotine, nicotine salts (e.g. nicotine ditartrate/nicotine bitartrate), nicotine-free tobacco substitutes, other alkaloids such as caffeine, or mixtures thereof.
  • the active constituent is an olfactory active constituent and may be selected from a "flavor” and/or "flavorant” which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers.
  • flavor and/or "flavorant” which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers.
  • such constituents may be referred to as flavors, flavorants, flavoring material, cooling agents, heating agents, and/or sweetening agents.
  • They may include naturally occurring flavor materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice (liquorice), hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian spices, herb, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot,
  • They may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, liquid such as an oil, solid such as a powder, or gasone or more of extracts (e.g., licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang- ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or a mint oil from any species of the genus Mentha), flavor enhancers
  • the flavoring material may comprise menthol, spearmint and/or peppermint.
  • the flavor comprises flavor components of cucumber, blueberry, citrus fruits and/or redberry.
  • the flavor comprises eugenol.
  • the flavor comprises flavor components extracted from tobacco.
  • the flavor may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
  • a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucalyptol, WS-3.
  • the carrier constituent may comprise one or more constituents capable of forming an aerosol.
  • the carrier constituent may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3- butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the one or more other functional constituents may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • aerosol provision devices may often comprise a modular assembly including both a reusable part (body) and a replaceable consumable (cartridge) part.
  • Devices conforming to this type of two-part modular configuration may generally be referred to as two-part devices.
  • electronic cigarettes it is also common for electronic cigarettes to have a generally elongate shape.
  • certain embodiments of the disclosure described herein may comprise this kind of generally elongate two-part device employing consumable parts.
  • FIG. 1 is a schematic perspective view of an example aerosol provision system / device (e-cigarette) 1 in accordance with certain embodiments of the disclosure.
  • Terms concerning the relative location of various aspects of the electronic cigarette e.g. terms such as upper, lower, above, below, top, bottom etc. are used herein with reference to the orientation of the electronic cigarette as shown in Figure 1 (unless the context indicates otherwise). However, it will be appreciated this is purely for ease of explanation and is not intended to indicate there is any required orientation for the electronic cigarette in use.
  • the e-cigarette 1 comprises two main components, namely a cartridge 2 and a control unit 4.
  • the control unit 4 and the cartridge 2 are shown separated in Figure 1, but are coupled together when in use.
  • the cartridge 2 and control unit 4 are coupled by establishing a mechanical and electrical connection between them.
  • the specific manner in which the mechanical and electrical connection is established is not of primary significance to the principles described herein and may be established in accordance with conventional techniques, for example based around a screw thread, bayonet, latched or friction-fit mechanical fixing with appropriately arranged electrical contacts / electrodes for establishing the electrical connection between the two parts as appropriate.
  • the cartridge comprises a mouthpiece 33, a mouthpiece end 52 and an interface end 54, and is coupled to the control unit by inserting an interface end portion 6 at the interface end of the cartridge into a corresponding receptacle 8 / receiving section of the control unit.
  • the interface end portion 6 of the cartridge is a close fit to be receptacle 8 and includes protrusions 56 which engage with corresponding detents in the interior surface of a receptacle wall 12 defining the receptacle 8 to provide a releasable mechanical engagement between the cartridge and the control unit.
  • An electrical connection is established between the control unit and the cartridge via a pair of electrical contacts on the bottom of the cartridge (not shown in Figure 1) and corresponding sprung contact pins in the base of the receptacle 8 (not shown in Figure 1).
  • the specific manner in which the electrical connection is established is not significant to the principles described herein, and indeed some implementations might not have an electrical connection between the cartridge and a control unit at all, for example because the transfer of electrical power from the reusable part to the cartridge may be wireless (e.g. based on electromagnetic induction techniques).
  • the electronic cigarette 1 (aerosol provision device) has a generally elongate shape extending along a longitudinal axis L.
  • the overall length of the electronic cigarette in this example is around 12.5 cm.
  • the overall length of the control unit is around 9 cm and the overall length of the cartridge is around 5 cm (i.e. there is around 1.5 cm of overlap between the interface end portion 6 of the cartridge and the receptacle 8 of the control unit when they are coupled together).
  • the electronic cigarette has a cross-section which is generally oval and which is largest around the middle of the electronic cigarette and tapers in a curved manner towards the ends.
  • the crosssection around the middle of the electronic cigarette has a width of around 2.5 cm and a thickness of around 1.7 cm.
  • the end of the cartridge has a width of around 2 cm and a thickness of around 0.6 mm, whereas the other end of the electronic cigarette has a width of around 2 cm and a thickness of around 1.2 cm.
  • the outer housing of the electronic cigarette is in this example is formed from plastic. It will be appreciated the specific size and shape of the electronic cigarette and the material from which it is made is not of primary significance to the principles described herein and may be different in different implementations. That is to say, the principles described herein may equally be adopted for electronic cigarettes having different sizes, shapes and / or materials.
  • the control unit 4 may in accordance with certain embodiments of the disclosure be broadly conventional in terms of its functionality and general construction techniques.
  • the control unit 4 comprises a plastic outer housing 10 including the receptacle wall 12 that defines the receptacle 8 for receiving the end of the cartridge as noted above.
  • the outer housing 10 of the control unit 4 in this example has a generally oval cross section conforming to the shape and size of the cartridge 2 at their interface to provide a smooth transition between the two parts.
  • the receptacle 8 and the end portion 6 of the cartridge 2 are symmetric when rotated through 180° so the cartridge can be inserted into the control unit in two different orientations.
  • the receptacle wall 12 includes two control unit air inlet openings 14 (i.e. holes in the wall).
  • openings 14 are positioned to align with an air inlet 50 for the cartridge when the cartridge is coupled to the control unit.
  • a different one of the openings 14 aligns with the air inlet 50 of the cartridge in the different orientations. It will be appreciated some implementations may not have any degree of rotational symmetry such that the cartridge is couplable to the control unit in only one orientation while other implementations may have a higher degree of rotational symmetry such that the cartridge is couplable to the control unit in more orientations.
  • the control unit further comprises a battery 16 for providing operating power for the electronic cigarette, control circuitry (also referenced as a controller) 18 for controlling and monitoring the operation of the electronic cigarette, a user input button 20, an indicator light 22, and a charging port 24.
  • control circuitry also referenced as a controller
  • the battery 16 in this example is rechargeable and may be of a conventional type, for example of the kind normally used in electronic cigarettes and other applications requiring provision of relatively high currents over relatively short periods.
  • the battery 16 may be recharged through the charging port 24, which may, for example, comprise a USB connector.
  • the input button 20 in this example is a conventional mechanical button, for example comprising a sprung mounted component which may be pressed by a user to establish an electrical contact in underlying circuitry.
  • the input button may be considered an input device for detecting user input, e.g. to trigger aerosol generation, and the specific manner in which the button is implemented is not significant.
  • other forms of mechanical button or touch-sensitive button e.g. based on capacitive or optical sensing techniques
  • the indicator light 22 is provided to give a user with a visual indication of various characteristics associated with the electronic cigarette, for example, an indication of an operating state (e.g. on / off / standby), and other characteristics, such as battery life or fault conditions. Different characteristics may, for example, be indicated through different colours and / or different flash sequences in accordance with generally conventional techniques.
  • the control circuitry / controller 18 is suitably configured / programmed to control the operation of the electronic cigarette to provide conventional operating functions in line with the established techniques for controlling electronic cigarettes.
  • the control circuitry (processor circuitry) 18 may be considered to logically comprise various sub-units / circuitry elements associated with different aspects of the electronic cigarette's operation.
  • the control circuitry 18 may comprises power supply control circuitry for controlling the supply of power from the battery/power supply to the cartridge in response to user input, user programming circuitry for establishing configuration settings (e.g.
  • control circuitry 18 can be provided in various different ways, for example using one or more suitably programmed programmable computer(s) and / or one or more suitably configured application-specific integrated circuit(s) / circuitry / chip(s) / chipset(s) configured to provide the desired functionality.
  • FIG. 2 is an exploded schematic perspective view of the cartridge 2 (exploded along the longitudinal axis L).
  • the cartridge 2 comprises a housing part 32, a mouthpiece 33, an air channel seal 34, a dividing wall element 36, an outlet tube 38, a vaporiser/heating element 40, an aerosolizable material transport element 42, a plug 44, and an end cap 48 with contact electrodes 46.
  • Figures 3 to 6 schematically represents some of these components in more detail.
  • Figure 3 A is a schematic cut-away view of the housing part 32 through the longitudinal axis L where the housing part 32 is thinnest.
  • Figure 3B is a schematic cut-away view of the housing part 32 through the longitudinal axis L where the housing part 32 is widest.
  • Figure 3C is a schematic view of the housing part along the longitudinal axis L from the interface end 54 (i.e. viewed from below in the orientation of Figures 3 A and 3B).
  • Figures 4 A is a schematic perspective view of the dividing wall element 36 as seen from below.
  • Figure 4B is a schematic cross-section through an upper part of the dividing wall element 36 as viewed from below.
  • Figure 5A is a schematic perspective view of the plug 44 from above and Figure 5B is a schematic perspective view of the plug 44 from below.
  • Figure 5C is a schematic view of the plug 44 along the longitudinal axis L seen from the mouthpiece end 52 of the cartridge (i.e. viewed from above for the orientation in Figures 1 and 2).
  • Figure 6A is a schematic perspective view of the end cap 48 from above.
  • Figure 6B is a schematic view of the end cap 48 along the longitudinal axis L seen from the mouthpiece end 52 of the cartridge (i.e. from above).
  • the housing part 32 in this example comprises a housing outer wall 64 and a housing inner tube 62 which in this example are formed from a single moulding of polypropylene.
  • the housing outer wall 64 defines the external appearance of the cartridge 2 and the housing inner tube 62 defines a part the air channel through the cartridge.
  • the housing part is open at the interface end 54 of the cartridge and closed at the mouthpiece end 52 of the cartridge except for a mouthpiece opening / aerosol outlet 60, from the mouthpiece 33, which is in fluid communication with the housing inner tube 62.
  • the housing part 32 includes an opening in a sidewall which provides the air inlet 50 for the cartridge.
  • the air inlet 50 in this example has an area of around 2 mm 2 .
  • the outer surface of the outer wall 64 of the housing part 32 includes the protrusions 56 discussed above which engage with corresponding detents in the interior surface of the receptacle wall 12 defining the receptacle 8 to provide a releasable mechanical engagement between the cartridge and the control unit.
  • the inner surface of the outer wall 64 of the housing part includes further protrusions 66 which act to provide an abutment stop for locating the dividing wall element 36 along the longitudinal axis L when the cartridge is assembled.
  • the outer wall 64 of the housing part 32 further comprises holes which provide latch recesses 68 arranged to receive corresponding latch projections 70 in the end cap to fix the end cap to be housing part when the cartridge is assembled.
  • the outer wall 64 of the housing part 32 includes a double-walled section 74 that defines a gap 76 in fluid communication with the air inlet 50.
  • the gap 76 provides a portion of the air channel through the cartridge.
  • the doubled-walled section 74 of the housing part 32 is arranged so the gap defines an air channel running within the housing outer wall 64 parallel to the longitudinal axis with a cross-section in a plane perpendicular to the longitudinal axis of around 3 mm 2 .
  • the gap / portion of air channel 76 defined by the double-walled section of the housing part extends down to the open end of the housing part 32.
  • the air channel seal 34 is a silicone moulding generally in the form of a tube having a through hole 80.
  • the outer wall of the air channel seal 34 includes circumferential ridges 84 and an upper collar 82.
  • the inner wall of the air channel seal 34 also includes circumferential ridges, but these are not visible in Figure 2.
  • the through hole 80 in the air channel seal has a diameter of around 5.8 mm in its relaxed state whereas the end of the housing inner tube 62 has a diameter of around 6.2 mm so that a seal is formed when the air channel seal 34 is stretched to accommodate the housing inner tube 62. This seal is facilitated by the ridges on the inner surface of the air channel seal 34.
  • the outlet tube 38 comprises a tubular section, for instance made of ANSI 304 stainless steel or polypropylene, with an internal diameter of around 8.6 mm and a wall thickness of around 0.2 mm.
  • the bottom end of the outlet tube 38 includes a pair of diametrically opposing slots 88 with an end of each slot having a semi-circular recess 90.
  • the aerosolizable material transport element 42 comprises a capillary wick and the vaporiser 40 comprises a resistance wire heater wound around the capillary wick.
  • the vaporiser comprises electrical leads 41 which pass through holes in the plug 44 to contact electrodes 46 mounted to the end cap 54 to allow power to be supplied to the vaporiser via the electrical interface the established when the cartridge is connected to a control unit.
  • the vaporiser leads 41 may comprise the same material as the resistance wire wound around the capillary wick, or may comprise a different material (e.g. lower-resistance material) connected to the resistance wire wound around the capillary wick.
  • the heater coil 40 comprises a nickel iron alloy wire and the wick 42 comprises a glass fibre bundle.
  • the vaporiser and aerosolizable material transport element may be provided in accordance with any conventional techniques and is may comprise different forms and / or different materials.
  • the wick may comprise fibrous or solid a ceramic material and the heater may comprise a different alloy.
  • the heater and wick may be combined, for example in the form of a porous and a resistive material. More generally, it will be appreciated the specific nature aerosolizable material transport element and vaporiser is not of primary significance to the principles described herein.
  • the wick 42 When the cartridge is assembled, the wick 42 is received in the semi-circular recesses 90 of the outlet tube 38 so that a central portion of the wick about which the heating coil is would is inside the outlet tube while end portions of the wick are outside the outlet tube 38.
  • the plug 44 in this example comprises a single moulding of silicone, may be resilient.
  • the plug comprises a base part 100 with an outer wall 102 extending upwardly therefrom (i.e. towards the mouthpiece end of the cartridge).
  • the plug further comprises an inner wall 104 extending upwardly from the base part 100 and surrounding a through hole 106 through the base part 100.
  • the outer wall 102 of the plug 44 conforms to an inner surface of the housing part 32 so that when the cartridge is assembled the plug in 44 forms a seal with the housing part 32.
  • the inner wall 104 of the plug 44 conforms to an inner surface of the outlet tube 38 so that when the cartridge is assembled the plug 44 also forms a seal with the outlet tube 38.
  • the inner wall 104 includes a pair of diametrically opposing slots 108 with the end of each slot having a semicircular recess 110. Extended outwardly (i.e. in a direction away from the longitudinal axis of the cartridge) from the bottom of each slot in the inner wall 104 is a cradle section 112 shaped to receive a section of the aerosolizable material transport element 42 when the cartridge is assembled.
  • the slots 108 and semi-circular recesses 110 provided by the inner wall of the plug 44 and the slots 88 and semi-circular recesses 90 of the outlet tube 38 are aligned so that the slots 88 in the outlet tube 38 accommodate respective ones of the cradles 112 with the respective semi-circular recesses in the outlet tube and plug cooperating to define holes through which the aerosolizable material transport element passes.
  • the size of the holes provided by the semicircular recesses through which the aerosolizable material transport element passes correspond closely to the size and shape of the aerosolizable material transport element, but are slightly smaller so a degree of compression is provided by the resilience of the plug 44.
  • the plug 44 includes further openings 114 in the base part 100 through which the contact leads 41 for the vaporiser pass when the cartridge is assembled.
  • the bottom of the base part of the plug includes spacers 116 which maintain an offset between the remaining surface of the bottom of the base part and the end cap 48. These spacers 116 include the openings 114 through which the electrical contact leads 41 for the vaporiser pass.
  • the end cap 48 comprises a polypropylene moulding with a pair of gold-plated copper electrode posts 46 mounted therein.
  • the ends of the electrode posts 44 on the bottom side of the end cap are close to flush with the interface end 54 of the cartridge provided by the end cap 48. These are the parts of the electrodes to which correspondingly aligned sprung contacts in the control unit connect when the cartridge is assembled and connected to the control unit.
  • the ends of the electrode posts on the inside of the cartridge extend away from the end cap 48 and into the holes 114 in the plug 44 through which the contact leads 41 pass.
  • the electrode posts are slightly oversized relative to the holes 114 and include a chamfer at their upper ends to facilitate insertion into the holes 114 in the plug where they are maintained in pressed contact with the contact leads for the vaporiser by virtue of the plug.
  • the end cap has a base section 124 and an upstanding wall 120 which conforms to the inner surface of the housing part 32.
  • the upstanding wall 120 of the end cap 48 is inserted into the housing part 32 so the latch projections 70 engage with the latch recesses 68 in the housing part 32 to snap-fit the end cap 48 to the housing part when the cartridge is assembled.
  • the top of the upstanding wall 120 of the end cap 48 abuts a peripheral part of the plug 44 and the lower face of the spacers 116 on the plug also abut the base section 124 of the plug so that when the end cap 48 is attached to the housing part it presses against the resilient part 44 to maintain it in slight compression.
  • the base portion 124 of the end cap 48 includes a peripheral lip 126 beyond the base of the upstanding wall 112 with a thickness which corresponds with the thickness of the outer wall of the housing part at the interface end of the cartridge.
  • the end cap also includes an upstanding locating pin 122 which aligns with a corresponding locating hole 128 in the plug to help establish their relative location during assembly.
  • the dividing wall element 36 comprises a single moulding of polypropylene and includes a dividing wall 130 and a collar 132 formed by projections from the dividing wall 130 in the direction towards the interface end of the cartridge.
  • the dividing wall element 36 has a central opening 134 through which the outlet tube 38 passes (i.e. the dividing wall is arranged around the outlet tube 38).
  • the dividing wall element 36 may be integrally formed with the outlet tube 38.
  • the dividing wall 130 prevents the plug from being pushed too far into the housing part 32 - i.e. the dividing wall 130 is fixedly located along the longitudinal axis of the cartridge by the protrusions 66 in the housing part and so provides the plug with a fixed surface to push against.
  • the collar 132 formed by projections from the dividing wall includes a first pair of opposing projections / tongues 134 which engage with corresponding recesses on an inner surface of the outer wall 102 of the plug 44.
  • the protrusions from the dividing wall 130 further provide a pair of cradle sections 136 configured to engage with corresponding ones of the cradle sections 112 in the part 44 when the cartridge is assembled to further define the opening through which the aerosolizable material transport element passes.
  • an air channel extending from the air inlet 50 to the aerosol outlet 60 through the cartridge is formed.
  • a first section of the air channel is provided by the gap 76 formed by the double-walled section 74 in the outer wall 64 of the housing part 32 and extends from the air inlet 50 towards the interface end 54 of the cartridge and past the plug 44.
  • a second portion of the air channel is provided by the gap between the base of the plug 44 and the end cap 48.
  • a third portion of the air channel is provided by the hole 106 through the plug 44.
  • a fourth portion of the air channel is provided by the region within the inner wall 104 of the plug and the outlet tube around the vaporiser 40.
  • This fourth portion of the air channel may also be referred to as an aerosol/aerosol generation region, it being the primary region in which aerosol is generated during use.
  • the air channel from the air inlet 50 to the aerosol generation region may be referred to as an air inlet section of the air channel.
  • a fifth portion of the air channel is provided by the remainder of the outlet tube 38.
  • a sixth portion of the air channel is provided by the outer housing inner tube 62 which connects the air channel to the aerosol outlet 60, which is located at an end of the mouthpiece 33 .
  • the air channel from the aerosol generation region to be the aerosol outlet may be referred to as an aerosol outlet section of the air channel.
  • a reservoir 31 for aerosolizable material is formed by the space outside the air channel and inside the housing part 32. This may be filled during manufacture, for example through a filling hole which is then sealed, or by other means.
  • the specific nature of the aerosolizable material for example in terms of its composition, is not of primary significance to the principles described herein, and in general any conventional aerosolizable material of the type normally used in electronic cigarettes may be used.
  • the present disclosure may refer to a liquid as the aerosolizable material, which as mentioned above may be a conventional e-liquid.
  • any aerosolizable material which has the ability to flow may include a liquid, a gel, or a solid, where for a solid a plurality of solid particles may be considered to have the ability to flow when considered as a bulk.
  • the reservoir is closed at the interface end of the cartridge by the plug 44.
  • the reservoir includes a first region above the dividing wall 130 and a second region below the dividing wall 130 within the space formed between the air channel and the outer wall of the plug.
  • the aerosolizable material transport element (capillary wick) 42 passes through openings in the wall of the air channel provided by the semi-circular recesses 108, 90 in the plug 44 and the outlet tube 38 and the cradle sections 112, 136 in the plug 44 and the dividing wall element 36 that engage with one another as discussed above.
  • the ends of the aerosolizable material transport element extend into the second region of the reservoir from which they draw aerosolizable material through the openings in the air channel to the vaporiser 40 for subsequent vaporisation.
  • the cartridge 2 is coupled to the control unit 4 and the control unit activated to supply power to the cartridge via the contact electrodes 46 in the end cap 48. Power then passes through the connection leads 41 to the vaporiser 40.
  • the vaporiser is thus electrically heated and so vaporises a portion of the aerosolizable material from the aerosolizable material transport element in the vicinity of the vaporiser. This generates aerosol in the aerosol generation region of the air path. Aerosolizable material that is vaporised from the aerosolizable material transport element is replaced by more aerosolizable material drawn from the reservoir by capillary action. While the vaporiser is activated, a user inhales on the mouthpiece end 52 of the cartridge.
  • FIG. 7A-8 the present disclosure also provides for an aerosol provision system 200 whose features may include any or all of the features described with respect to the aerosol provision system disclosed in Figures 1-6B for instance. These features are illustrated in Figures 7A-8 by way of identical reference numerals to those reference numerals shown in any of Figures 1-6B.
  • the aerosol provision system 200 may comprise, as required, any of a reservoir 31 containing aerosolizable material; a vaporiser 40 for vaporising aerosolizable material (such as aerosolizable material originating from the reservoir 31); an aerosolizable material transport element 42 for transporting aerosolizable material from any present reservoir 31 to any employed vaporiser 40.
  • the aerosol provision system 200 may additionally /alternatively comprise an outlet tube 38;62 for receiving vaporised aerosolizable material; and/or an outlet 60 for delivering vaporised aerosolizable material to a user of the aerosol provision system 200.
  • the aerosol provision system 200 maybe configured for generating an aerosol from an aerosolizable material, just like for the aerosol provision systems 1 described previously with respect to Figures 1-6B.
  • a plenum chamber 202 for controlling the flow of air through the aerosol provision system 200.
  • the plenum chamber 202 may be located between at least one air inlet 14 from the aerosol provision system 200, and other portions of the aerosol provision system 200, such as in accordance with some embodiments any employed vaporiser 40; cartridge 2; and/or air inlet 50 of the cartridge 2.
  • herein disclosed is a method of directing a flow of air through an aerosol provision system 200, wherein the method comprises: causing a flow of air to pass through at least one air inlet 14 from a body 2 of the aerosol provision system 200; delivering the flow of air from the at least one air inlet 14 into a plenum chamber 202 of the body 2; and delivering the flow of air from the plenum chamber 202 into an air inlet 50 of a cartridge 2 which is engaged against a portion of the plenum chamber 202.
  • Such an embodiment can be seen best with reference to the embodiment from Figures 7A-7C, where this flow of air is depicted by the arrows D1-D3 passing from the air inlet 14 to the air inlet 50 of the cartridge 2.
  • the plenum chamber 202 in accordance with some embodiments may comprise a main chamber 204 and at least one entrance chamber 206. Each entrance chamber 206 may thus allow for a flow of air to enter from outside the plenum chamber 202 into the main chamber 204.
  • the at least one entrance chamber 206 may comprise a plurality of entrance chambers 206A;206B.
  • the at least one entrance chamber 206 may comprise a first entrance chamber 206A on a first side 202A of the plenum chamber, and comprise a second entrance chamber 206B on a second side 202B of the plenum chamber 202.
  • the main chamber 204 may be located between the first entrance chamber 206 A and the second entrance chamber 206B.
  • At least one principal operation of the plenum chamber 202 may be to better redirect the flow of air into the regions of the aerosol provision system 200 which are upstream of the vaporiser 40 and/or any provided aerosolizable material transport element 42. This can be seen with reference to Figures 7B and 7C at least, where the plenum chamber helps to effectively redirect the flow of air through a 90 degree angle into the regions upstream of the vaporiser 40 and/or any provided aerosolizable material transport element 42.
  • the cartridge 2 may be configured to engage a portion 210 of the plenum chamber 202, to allow the plenum chamber 202 to be covered by the cartridge 4.
  • the cartridge 2 may be configured to define a roof, or lid, covering the plenum chamber 202 when the cartridge 4 is engaged with the body 2.
  • the main chamber 204 and/or each entrance chamber 206 may be configured to be covered by the cartridge 2 when the cartridge is engaging the portion 210 of the plenum chamber 202.
  • the cartridge 4 engages with the plenum chamber 202
  • this provides an effective arrangement for passing a flow of air from the plenum chamber 202 into the cartridge 2 in a controlled manner.
  • this may then allow the plenum chamber 202 to be more easily cleaned in use, by simply removing the cartridge 4 to thus expose the plenum chamber 202 for cleaning.
  • the plenum chamber may comprise a surrounding wall 212, which is shown best with reference to the embodiment from Figure 7E.
  • the surrounding wall may comprise a first surrounding wall 212A surrounding a first portion of the plenum chamber 202, and a second surrounding wall 212B surrounding a second portion of the plenum chamber 202.
  • the first surrounding wall 212A may in some instances be distinct from the second surrounding wall 212B (as shown in Figure 7E).
  • the first surrounding wall 212A and the second surrounding wall 212B may be located on opposing sides of the plenum chamber (as shown in the embodiment on Figure 7E).
  • any employed surrounding wall 212 may serve a dual-purpose of being further configured to engage against the cartridge 2 when the cartridge 2 is received by the body 4 (and/or any employed receptacle 8 therefrom).
  • the surrounding wall 212 in accordance with some embodiments thereof, and potentially other embodiments, may be resilient. In this way, a better sealing engagement may be provided against the surrounding wall 212.
  • the surrounding wall 212 may be at least partially annular, and/or put differently, the surrounding wall may comprise an annular portion 214, which in a very particular embodiment may be an annular portion which surrounds the main chamber 204, and/or which may be an annular portion 214 which is configured to surround an air inlet 50 leading towards the vaporiser 40.
  • the annular portion 214 may be configured to surround the air inlet 50 from the cartridge 2 when the cartridge 2 is engaging the portion 210 of the plenum chamber 202.
  • the surrounding wall 212 may comprise a least one gap 214, wherein each gap 214 at least partially defines a respective inlet orifice 216 for allowing a flow of air to pass from the at least one air inlet 14 into the plenum chamber 202, as can be seen with reference to Figure 7E.
  • any such inlet orifice 216 could be formed without the involvement of provision of the surrounding wall 212, though using the surrounding wall 212 to define each inlet orifice(s) 216 may provide a particularly simple and effective arrangement for helping to define the operation of the plenum chamber 202.
  • any such inlet orifice(s) 216 of which there may be one or more than one as required, depending on the application of the plenum chamber 202, a function of the inlet orifice (along with any employed entrance chamber 206) is to better define/guide the flow of air passing from the air inlet(s) 14 of the aerosol provisions system 200 into the plenum chamber 202.
  • each inlet orifice 216 and/or entrance chamber 204 may be configured to define a flow restrictor which restricts the flow of air through the aerosol provision system 200.
  • the flow restrictor may throttle the air passing from each air inlet 14 to an introductory pressure which is best suited for entry into the plenum chamber and then into the components upstream of the vaporiser 40 (such as the air inlet 50 of any provided cartridge 2).
  • the above inlet orifice 216 and/or entrance chamber 204 may also have particular synergy in embodiments where the aerosol provision system 200 (and/or any body 2 and/or receptacle 8) comprises an air-flow receiving orifice 220 for allowing a flow of air to pass from the receptacle to an air-flow detection sensor 222 (as shown in the embodiment of Figure 7E).
  • an air-flow detection sensor 222 is typically used to control the operation of the aerosol provision system 200 and/or vaporiser 40 therefrom in instance when the air-flow detection sensor 222 detects a user sucking air through the aerosol provision system 200.
  • the air-flow receiving orifice 220 may be located at one of the at least one inlet orifice 216, and/or at one of the entrance chambers 206A;206B.
  • the air-flow detection sensor 222 may be able to better detect when the user is sucking air through the aerosol provision system 200, through the at least one inlet orifice 216, and/or at one of the flow-restricting entrance chambers 206A;206B, providing a more pronounced pressure drop across the air-flow detection sensor 222.
  • each inlet orifice 216, and/or each of the entrance chambers 206A;206B where employed, may be selected as noted above to provide an appropriate restriction of the flow of air into the plenum chamber 202, and which is better optimised for passing this flow of air into the rest of the plenum chamber 202 (such as the main chamber 204) and the downstream components from the plenum chamber 202 as discussed previously.
  • each entrance chamber 206 comprises an entrance chamber maximum width WENTRANCE, wherein the main chamber width is between 1.4 to 2.6 times the size of each entrance chamber maximum width [and/or, put differently, 1.4 to 2.6 times the size of a maximum width of each inlet orifice], and in accordance with some particular embodiments between 1.7 to 2.3 times the size of each entrance chamber maximum width [and/or, put differently, 1.7 to 2.3 times the size of a maximum width of each inlet orifice].
  • the above flow restricting functionally has been found to be even more effectively achieved through the main chamber 202 comprising a maximum height HMAIN which is taller than the maximum height HENTRANCE of each entrance chamber 204 (or taller than the maximum height of each inlet orifice 216).
  • the main chamber 204 may comprise a maximum height which is between 1.4 to 2.6 times the size of each entrance chamber maximum height [and/or, put differently, 1.4 to 2.6 times the size of a maximum height of each inlet orifice], and/or more specifically in some narrower embodiments, the main chamber 206 may comprise a maximum height which is between 1.7 to 2.3 times the size of each entrance chamber maximum height [and/or, put differently, 1.7 to 2.3 times the size of a maximum height of each inlet orifice].
  • the plenum chamber 202 in accordance with some embodiments has been found to work particularly well where the main chamber 204 comprises a maximum height which is between 0.5mm to 1.5mm , and/or where each entrance chamber 206 (and/or each inlet orifice 216) comprises a maximum height which is between 0.2mm to 0.45mm.
  • each entrance chamber may be substantially straight and/or elongate.
  • flow of air inside the plenum chamber 202 may also be better controlled, and relatively less turbid, where the main chamber 202 comprises a substantially circular cross section.
  • the main chamber in these respects, in accordance with some embodiments, may also/alternatively be substantially cylindrical in cross section.
  • Another function of the plenum chamber 202 may be to act as a feature for directing aerosolizable material which may leak from other parts of the aerosol provision system 200 (such as from any provided reservoir 31, any provided aerosolizable material transport element 42, and/or in respect of vaporised aerosolizable material which re-condenses down through any downstream location) from passing towards any provided air-flow detection sensor 222.
  • aerosolizable material reaches the air-flow detection sensor 222, this may cause inaccurate or incorrect outputs from the air-flow detection sensor 222, which is undesirable.
  • an aerosol provision system 200 (such as its body 4 or receptacle 8 in some narrower embodiments) which comprises an aerosolizable material directing portion 224 for directing aerosolizable material, leaking from the air inlet 50 of the cartridge 2, in a direction away from any provided air-flow receiving orifice 220.
  • the plenum chamber 202 may comprise the aerosolizable material directing portion 224 for helping to directing the aerosolizable material away from any provided air-flow receiving orifice 220.
  • the aerosolizable material directing portion 224 may comprise a basin 226, wherein the air-flow receiving orifice 220 is located outside of the basin 226.
  • the basin 226 may be located in the plenum chamber 202, such as in the main chamber 204.
  • the basin may better accommodate the aerosolizable material for inhibiting this aerosolizable material from passing into the air-flow receiving orifice 220.
  • the basin 226 in accordance with such embodiments may be at least 0.25mm deep, and/or no deeper than 1mm.
  • the body 4 comprises the aerosolizable material directing portion 224, for directing aerosolizable material, leaking from the air inlet 50 of the cartridge 2, in a direction away from the air-flow receiving orifice 220 when the cartridge 2 is releasably received by the body 4.
  • each entrance chamber 206 in some of these embodiments may comprise an interface surface 228 which is situated adjacent the main chamber 204.
  • each interface surface may define an inclined, or ramped, surface in accordance with some embodiments, and which in accordance with some very particular embodiments may transition a base (or bottom) surface 230 of the entrance chamber 206 with a base (or bottom) surface 232 of the main chamber 204.
  • the interface surface 228 for one of the plurality of entrance chambers may be steeper than the interface surface 228 for another of the plurality of entrance chambers 206. This can be seen in the embodiment of Figure 7E for instance. This differing steepness between the interface surfaces, may also be particularly advantageous where the air-flow receiving orifice 220 is located more proximal to a particular one entrance chamber 206 over any provided another entrance chamber(s) 206.
  • the interface surface 228 for the one of the plurality of entrance chambers 206B may be steeper than the interface surface 228 for another of the plurality of entrance chambers 206, for better directing any aerosolizable material which enters the main chamber 204 away from the air-flow receiving orifice 220.
  • the basin 226 in accordance with some embodiments may comprise a first surface 228A for directing aerosolizable material out of the basin in a direction Al away from the airflow receiving orifice 220.
  • the basin in accordance with some embodiments may then also comprise a second surface 228B which is located more proximal to the air-flow receiving orifice 220 than the first surface 228A is located to the air-flow receiving orifice 220, wherein the second surface 228B is steeper than the first surface 228A for encouraging aerosolizable material to flow out of the basin 226 via the first surface 228A than via the second surface 228B.
  • any provided plenum chamber 202 from the aerosol provision system 200 may be provided in this respect.
  • a plurality of air inlets 14 is employed, in accordance with some embodiments to help provide a more uniform and consistent flow of air into the plenum chamber 202 (as noted in the embodiment Figure 7C for instance), in accordance with some embodiments the plurality of air inlets may be all located on a same side, or half, Hl of the plenum chamber 202.
  • each air inlet 14 in accordance with some embodiments may comprise an air inlet channel 236.
  • the nature of any such air inlet channel 236 may depend on the particular arrangement of the aerosol provision system 200, and/or whether the plenum chamber 202 is provided, and if so, where the plenum chamber 202 is provided.
  • each air inlet channel 236 may be straight (as shown in the embodiments of Figures 7C and 7D), where the flow of air is configured to flow through the air inlet channel 236 about a particular direction (either direction DI or D2).
  • each air inlet channel 236 may comprise a cross sectional area XA1, for the passage of air, which is wider than it is tall(high).
  • each air inlet channel may comprise a maximum width (WCHANNEL) of between 1.5mm to 2.0mm; a maximum height (HCHANNEL) of between 0.5mm to 1.0mm; and/or a maximum length/thickness (LCHANNEL) of between 0.5mm to 1.5mm (the length/thickness direction being that about which the flow of air passes from a first; entry; end 244 of the air inlet channel, to a second; exit; end 246 of the air inlet channel 236).
  • WCHANNEL maximum width
  • HCHANNEL maximum height
  • LCHANNEL maximum length/thickness
  • each air inlet channel 236 may comprise a cross sectional area XA1, for the passage of air, which comprises a maximum width to maximum height ratio of at least 1.5 to 1.
  • each air inlet channel 236 in accordance with such embodiments may comprise a cross sectional area XA1, for the passage of air, which comprise a maximum width WCHANNEL and a maximum height HCHANNEL, wherein the maximum width WCHANNEL is larger than the maximum height HCHANNEL.
  • each air inlet channel 236 may comprise a cross sectional area XA1, for the passage of air, which is elongate or non-circular, and/or such that each air inlet defines a slot extending through the receptacle 8 (such as a second receptacle wall 254 of the receptacle 8, as will be described).
  • each air inlet channel 236 may extend through a wall of the receptacle 8, and may in a particular embodiment define a slot passing through a wall of the receptacle 8.
  • each air inlet channel 236 is disposed at particular predetermined locations of the receptacle 8 as will now be described.
  • the receptacle may comprise a first end 248; and a second, open, end 250 (which may be opposite the first end 248) for allowing a cartridge 2 to be inserted into the receptacle 8.
  • the receptacle may comprise a first receptacle wall 252 located at the first end 248 of the receptacle 8.
  • the receptacle may then also comprise at least one second receptacle wall 254 extending between the first end 248 and the second end 250 of the receptacle, as shown in the embodiment from Figures 7A-7D at least.
  • the first receptacle wall 252 may be substantially perpendicular to each of the at least one second receptacle wall 254.
  • each air inlet 14 may extend through the at least one second receptacle wall 254, and/or such that the first receptacle wall 252 does not comprise the at least one air inlet 14.
  • each air inlet (and/or air inlet channel) may be located no more than 10mm from the first end 248 of the receptacle and/or the first receptacle wall 252.
  • each air inlet (and/or air inlet channel) may be located no more than 8mm; no more than 5mm; and/or no more than 3mm; from the first end 248 of the receptacle 8 and/or from the first receptacle wall 252.
  • each air inlet 14 and/or each inlet channel 236 may be understood as meaning the entirety of each air inlet 14 and/or each inlet channel 236 as being no more than the specified distance away, as opposed to just a part of the air inlet 14 and/or each inlet channel 236 being the specified distance away.
  • each inlet channel 2366 may also provide, in some embodiments, each air inlet being effectively located closer to the first end 248 of the receptacle 8, than the air inlet 14 is located to the second end 250 of the receptacle 8.
  • the at least one air inlet 14 comprises a first air inlet 14A defining a first air inlet channel 236A extending about a first direction DI through a wall 254 of the receptacle 8, and where the at least one air inlet 14 comprises a second air inlet 14B defining a second air inlet channel 236B extending about a second direction D2 through a wall 254 of the receptacle 8.
  • the first direction DI may in accordance with some embodiments be not parallel to the second direction D2.
  • the angle of separation (a) between the first direction DI and the second direction DI may be between 50 degrees and 170 degrees (and in some instance not 90 degrees to avoid the two directions D1;D2 from directly intersecting with each other at right angles, which might otherwise provide a particularly turbid flow of air).
  • the receptacle wall 12 may in these instances also function to help re-direct the flow of air (or at least a portion of it), from each such air inlet into the plenum chamber 202, by allowing such flow of air to impinge the receptacle wall 12, and off from the receptacle wall 12, towards the plenum chamber 202.
  • This may be seen, for instance, in the area where the ‘a’ is illustrated in Figure 7C, i.e. in a location which is just upstream of one of the inlet orifices 216 from the plenum chamber 202.
  • this angle of separation (a) between the first direction DI and the second direction D2 has also found to have synergy with the geometry/location of each inlet channel 236, as shown best in the embodiment from Figure 7C, where each air inlet channel 236 comprises the first, entry, end, 244 for receiving a flow of air from outside of the receptacle 8 into the air inlet channel 236, and in particular where this first end 244 is located on a chamfered portion 258 of the second receptacle wall 254.
  • the presence of the chamfered portion 258 has been found to not only allow for the above angle ranges to be implemented, but has also been found to locate each air inlet channel 236 in a position which is less likely to be inadvertently blocked by the user’s hand, compared with if the chamfered portion 258 was not employed, and/or compared with when each air inlet channel 236 is located in another location of the receptacle (such as in the positions XI and X2 shown in the embodiment of Figure 7C which are not located on a chamfered portion, and which are more likely to be inadvertently covered by the user’s hand in use).
  • the chamfered portion 258 has been found to better ensure an air inlet channel is located in such a way that it is less likely to be covered by a user’s hand in use.
  • the receptacle 8 may thus comprise a non-circular cross section.
  • the cross section in accordance with some embodiments may equally be defined as comprising any combination of: i) a non-rectangular or non-square cross section; ii) a cross section with at least one line of symmetry; iii) a cross-section with no rotational symmetry; and/or iv) a cross section defining a polygon having at least five sides, such as a six sided polygon (as shown in the Figures).
  • the six sided polygon may comprise: a first side (the top side shown in Figure 7C); a second side (the bottom side shown in Figure 7C); a third side connected to, and extending in a direction away from, a first end of the first side (the side shown in Figure 7C comprising the the first air inlet 14A/first inlet channel 236A; i.e.
  • the fifth and sixth sides may in some embodiments be parallel with each other, and it may also be appreciated that the third and four sides may each be shorter in length than each of the first, second; fifth and sixth sides.
  • the chamfered portion 258 may comprise a first chamfered portion 260 which is located on an outer surface 262 of the second receptacle wall 254, and/or such that the second end of each air inlet channel 236 may be located on a second chamfered portion 264 of the second receptacle wall 254, which is a second chamfered portion 264 which in a particular embodiment may be located on an inner surface 266 of the second receptacle wall 254.
  • each chamfered portion 258 relating to each air inlet channel 236 has been found to not only provide an improved flow of air into the receptacle 8 (which is better directed towards any provided plenum chamber 202), but has also been found to allow each air inlet channel 236 to be located in a position which is less likely to be inadvertently covered by the user’s hand in use.
  • any provided chamfered portions 258; air inlets 14; or air inlet channels 236 may be located on the same side, or half Hl, of the plenum chamber 202 as the remaining chamfered portions 258; air inlets 14; and/or air inlet channels 236 to yet further help provide the advantages described above.
  • the airflow receiving orifice 220 may be located on a same side, or half Hl, of the plenum chamber 220 as the at least one air inlet 14, which may allow the air-flow receiving orifice 220 to receive a secondary (branched) flow of air from each air inlet 14, as opposed to it receiving a primary flow of air extending towards, and entering, the other half (H2) of the plenum chamber 202 as shown best with reference to Figure 7C.
  • the air-flow receiving orifice 220 may still well function through the branched flow of air without needing to necessarily rely on, and/or interfere with the primary flow of air extending towards, and entering, the other half (H2) of the plenum chamber 202.
  • each air inlet channel 236 may be configured for allowing a flow of air to pass from outside of the aerosol provision system 200 into both of the first and second inlet orifices 216 from any provided plenum chamber 202.
  • the remaining air inlet channel(s) 236 may still be able to advantageously provide a flow of air into each of the first and second inlet orifices 216 from the plenum chamber 202.
  • any provided main chamber 204 therefrom may be configured to be located underneath, or next to, the air inlet 50 of the cartridge 4, when the cartridge 4 is engaging the cartridge-engaging portion 210 of the plenum chamber 202. In this way, this may facilitate an easier, and less inhibited, flow of air from the plenum chamber 202 into the cartridge 4.
  • the plenum chamber 202 comprises the basin 226, this may also more optimally locate the basin at a location which is also located underneath, or next to, the air inlet 50 of the cartridge 4.
  • the basin 226 may be configured to more effectively collect any aerosolizable material which inadvertently leaks from the air inlet 50 of the cartridge 4.
  • the air-flow receiving orifice 220 may be located outside of the main chamber 204.
  • the air-flow receiving orifice 220 may be offset from a central portion 270 of the plenum chamber 202 (which may in a very particular embodiment be a central portion 270 which is comprised as part of the main chamber 204, and/or which may be a central portion 270 which is configured to located underneath, or next to, the air inlet 50 of the cartridge 4 when the cartridge 4 is engaging the cartridge-engaging portion 210 of the plenum chamber 202.
  • this may in accordance with some embodiments be substantially featureless, or smooth, as shown for instance in the embodiment of Figure 7E, to better ensure that it provides an appropriate air-redirection region for air to be redirected, from each entrance chamber 206, inside the main chamber 204 towards a direction D3 which extends out the main chamber 204 of the plenum chamber 202.
  • the plenum chamber 202 (and/or its main chamber 204) may be at least partially recessed into the first receptacle wall 252.
  • the receptacle is configured for releasably receiving a cartridge 2 which configured to contain aerosolizable material for aerosolising into the aerosol.
  • the receptacle may appropriately support the cartridge 2 to allow the air passing through the air inlet(s) 14 to effectively pass into the cartridge 2.
  • the receptacle 8 may comprise at least one cartridge-receiving surface 272 located between the first end 248 and the second end 250 of the receptacle 8, for allowing the cartridge to engage against the cartridge-receiving surface 272 when the receptacle 8 is receiving the cartridge 2.
  • each cartridge-receiving surface 272 may be substantially flat.
  • each cartridge-receiving surface 272 in accordance with some embodiments may also be substantially parallel to the first receptacle wall 252.
  • the aerosol provision system 200 may comprise a plane Pl (as shown in the embodiment of Figure 7B, by the dotdash-dot line forming this plane Pl) which intersects each of the at least one air inlet channel 236 and a portion of the plenum chamber 202 (such as a portion of the main chamber 202, and a portion of each entrance chamber 206 in accordance with some embodiments).
  • each of the at least one air inlet channel 236 may be interpreted as meaning the plane Pl intersects at least the first end 244 and the second end 246 of the air inlet channel 236, as opposed to just one of these ends 244;246.
  • the plane may also intersect any combination of the herein described surrounding wall 212; first surrounding wall 212A; second surrounding wall 212B; inlet orifices(s) 216; basin 226; second receptacle wall 254; and/or cavity 240, as required.
  • the at least one cartridge-supporting portion 273 may comprise a first cartridgesupporting portion 273A and a second cartridge-supporting portion 273B, wherein the plenum chamber 202 is located between the first cartridge-supporting portion 273A and the second cartridge-supporting portion 273B.
  • each cartridge-supporting portion 273 in accordance with some embodiments may extend from the first receptacle wall 252.
  • the aerosol provision system 200 where it comprises a plenum chamber 202, may be configured to allow a flow of air to pass from each air inlet 14 into the plenum chamber 202.
  • an outer chamber 276 between the at least one air inlet 14 and the plenum chamber 202 for channelling air from the at least one air inlet 14 towards the plenum chamber 202.
  • the outer chamber 276 may form part of the cavity 240, and the outer chamber 276 may additionally or alternatively extend around the plenum chamber 202; and/or comprise any employed cartridgesupporting portion(s) 273.
  • any provided plenum chamber 200 may more effectively allow the direction D1;D2 of air flow through each air inlet 14 / air inlet channel 236A;236B to be efficiently/effectively redirected to flow about a third direction D3 which is not parallel to, and/or which is substantially perpendicular to each of the direction D1;D2 of air flow through each air inlet 14 / air inlet channel 236A;236B.
  • each air inlet of the receptacle 8 may be configured, when the receptacle 8 is receiving the cartridge 2, to extend about a length direction D1;D2 which is not parallel to, and/or which is substantially perpendicular to, a length direction D3 of the air inlet 50 from the cartridge 2 (as shown in the embodiment from Figures 7B and 7C, for instance).
  • each air inlet channel 236, as discussed previously, may comprise a cross sectional area XA1, for the passage of air, which comprises a width direction (such as the maximum width WCHANNEL) and a height direction (such as the maximum height HCHANNEL), such that this width is larger than this height.
  • a width direction such as the maximum width WCHANNEL
  • a height direction such as the maximum height HCHANNEL
  • any provided receptacle 8 may extend between the first end 248 and the second end 250 about a longitudinal axis L (as shown best with reference to Figures 7A and 7B for instance), in accordance with some embodiments thereof, the width direction (such as the maximum width WCHANNEL) of the cross sectional area XA1 may be perpendicular to the longitudinal axis L, and such that the height direction (such as the maximum height H- CHANNEL) of the cross sectional area XA1 may be parallel to the longitudinal axis L.
  • this geometry therefore, this has been found to provide a particularly effective set of pressure conditions inside the plenum chamber 202.
  • the provision of the cross sectional area XA1 where the width direction (e.g. the maximum width WCHANNEL) of each air inlet channel 236 is largely perpendicular to the longitudinal axis L of the receptacle 8 has been found to be particularly advantageous at creating more optimal pressure conditions inside the plenum chamber 202, compared with other geometries for the cross sectional area XAl/air inlet channel 236.
  • the above referenced longitudinal axis L could also be applicable to the body 4 of the aerosol provision system 200, as opposed to the receptacle 8.
  • the body 4 may comprise a first end; and a second end, opposite the first end, for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into an aerosol; the body 4 may be configured to extend between the first end and the second end about the longitudinal axis L, as shown best with reference to Figures 7A and 7B for instance.
  • the width direction (such as the maximum width WCHANNEL) of the cross sectional area XA1 for each air inlet channel 236 may be then perpendicular to the longitudinal axis L, and such that the height direction (such as the maximum height HCHANNEL) of the cross sectional area XA1 for each air inlet channel 236 is parallel to the longitudinal axis L.
  • each air inlet channel 236 may be also perpendicular to the longitudinal axis L (as can be seen in the embodiments from Figures 7A and 7B, for instance).
  • an aerosolizable material directing portion for directing aerosolizable material, leaking from an upstream location (such as an air inlet of a cartridge), in a direction away from any employed air-flow receiving orifice which is useable for operating the aerosol provision system 200.
  • Figure 8 discloses the steps of a method of directing a flow of air through an aerosol provision system 200, wherein the method comprises: causing a flow of air to pass through at least one air inlet 14 from a body 4 of the aerosol provision system 200; delivering the flow of air from the at least one air inlet into a plenum chamber 202 of the body 4; and (optionally, hence the lines in dotted from Figure 8) delivering the flow of air from the plenum chamber 202 into an air inlet 50 of a cartridge 2 which is engaged against a portion of the plenum chamber 202.
  • the method may further comprise: delivering the flow of air from the at least one air inlet 14 into a receptacle 8 of the body 4, wherein the receptacle 8 is configured for releasably receiving the cartridge 2, and wherein the receptacle comprises the plenum chamber 202; and delivering the flow of air from the receptacle 8 into the plenum chamber 202 of the body 2.
  • the method may also comprise the steps of: delivering the flow of air from the at least one air inlet into an outer chamber 276 (or cavity 240) of the receptacle 8; and delivering the flow of air from the outer chamber 276 (or cavity 240) into the plenum chamber 202.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material
  • the body comprising: a receptacle for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol
  • the receptacle comprises: at least one receptacle wall; at least one air inlet, wherein each air inlet extends through the at least one receptacle wall; and a plenum chamber; wherein the receptacle is configured for allowing the cartridge to engage against a portion of the plenum chamber when the receptacle is releasably receiving the cartridge, for then allowing a flow of air to pass from outside of the receptacle, through the at least one air inlet, into the receptacle, and then into the plenum chamber.
  • an aerosol provision system comprising the body as described above, the aerosol provision system further comprising a cartridge configured to contain aerosolizable material for aerosolising into the aerosol, wherein the aerosol provision system is configured for allowing the flow of air to pass from the plenum chamber into an air inlet of the cartridge, when the cartridge is engaged against the portion of the plenum chamber.
  • a method of directing a flow of air through an aerosol provision system comprises: causing a flow of air to pass through at least one air inlet from a body of the aerosol provision system; delivering the flow of air from the at least one air inlet into a plenum chamber of the body; and delivering the flow of air from the plenum chamber into an air inlet of a cartridge which is engaged against a portion of the plenum chamber.
  • the body 4 comprises a receptacle 8 for releasably receiving a cartridge 2.
  • the receptacle 8 comprises at least one air inlet 14 and a plenum chamber 202.
  • the receptacle 8 is configured for allowing the cartridge 2 to engage against a portion of the plenum chamber 202 when the receptacle 8 is releasably receiving the cartridge 2, for then allowing a flow of air to pass from outside of the receptacle 8, through the at least one air inlet 14, into the receptacle 8, and then into the plenum chamber 202.
  • any of the herein described plenum chamber 202, air inlets 14, air inlet channels 236, and/or basin 226, at least) need not expressly be used as part of a body 2/cartridge 4 type arrangement, such that any required components for the aerosol provision system 200 could equally in accordance with some embodiments be employed as part of a single aerosol provision device.
  • the components from the cartridge may be powered using either the power supply 16 (as shown in the embodiment of Figure 1), or powered with its own power source (not shown in the Figures).
  • the receptacle 8 may further comprise at least one electrode 46A which is configured, in use, for supplying electrical power to a cartridge 2 received in the receptacle 8, e.g. by providing the power to the contact electrode from the cartridge (as shown in the embodiment of Figure 7B for instance).
  • each electrode(s) 46A may be located between the plenum chamber 202 and one of the at least one cartridge-supporting portion 273.
  • any provided plenum chamber 202 in accordance with some embodiments may comprise at least one line of symmetry (as is clear from the embodiment in Figure 7C, where there is a line of symmetry bisecting the centre of the plenum chamber 202 and which bisects the angle a in a direction towards the second surface 228B.
  • first air inlet 14A/first inlet channel 236A and the second air inlet 14B/second air inlet channel 236B in some of these embodiments the first air inlet 14A (or first inlet channel 236A) may be the same distance away from the plenum chamber 202 as the second air inlet 14B (or second air inlet channel 236B) is from the plenum chamber 202.
  • first air inlet 14A (or first inlet channel 236A) is symmetrically opposed from the second air inlet 14B (or second air inlet channel 236B) about a line of symmetry which extends therebetween.
  • this line of symmetry may bisect the plenum chamber 202 (i.e. be a same line of symmetry as a line of symmetry for the plenum chamber 202 as noted above).
  • plenum chamber 202 As well, in accordance with some embodiments which may assist in preventing moisture or detritus ingress into the plenum chamber 202 through any provided air inlet or air inlet channel, it may be appreciated that in accordance with some embodiments, there may be a minimum separation of 1mm; 2mm; 3mm; 4mm; 5mm; 6mm; or in some yet narrower embodiments 8mm, between the plenum chamber 202 and each air inlet (or each air inlet channel).
  • minimum separation here, this may be understood as meaning that there is at least the specified distance between each air inlet (or each air inlet channel) and any portion of the plenum chamber 202.
  • At least one surrounding wall 212 may be located between the main chamber 204 of the plenum chamber 202 and each air inlet or air inlet channel.
  • any given air inlet or air inlet channel it may be appreciated that in such embodiments, at least one surrounding wall 212 from the plenum chamber 202 may bisect this straight line. Or put yet further differently, it may be appreciated that there may not be a direct line-of-sight between any provided air inlet (or air inlet channel) and either of i) interior of the plenum chamber 202 and/or ii) the main chamber 204 of the plenum chamber 202. In this way, moisture or detritus ingress into the plenum chamber 202 may be inhibited.
  • the maximum width of each surrounding wall in accordance with some embodiments may comprise no more than 8mm; no more than 6mm; no more than 5mm; no more than 4mm; no more than 3mm; more than 2mm; or in some narrower embodiments no more than 1mm.
  • this main chamber 204 in accordance with some embodiments may be featureless.
  • this main chamber 204 does not comprise any electrode(s) 46A or other components from the aerosol provision system which might otherwise interfere/obstruct the airflow which is located inside this main chamber 204 when the main chamber 204 is in use.
  • a first/bottom surface of the main chamber 204 may be flat and/or smooth.
  • This first/bottom surface is shown, for instance from Figures 7A and 7B, as being the surface which is configured to be located underneath the air inlet 50 of the cartridge 2 when the cartridge 2 is engaged against a portion of the plenum chamber 202.
  • a plenum chamber for use in an aerosol provision system, the plenum chamber comprising: at least one entrance chamber, wherein each entrance chamber comprises at least one inlet orifice configured for receiving a flow of air; a main chamber for receiving air from each entrance chamber; and a surrounding wall, wherein the surrounding wall comprises a first surrounding wall surrounding a first portion of the plenum chamber, and a second surrounding wall surrounding a second portion of the plenum chamber, wherein the first surrounding wall is distinct from the second surrounding wall.
  • each entrance chamber comprises one of the at least one inlet orifice; wherein the surrounding wall at least partly defines each inlet orifice.
  • the at least one entrance chamber comprises a first entrance chamber and a second entrance chamber; wherein each of the first surrounding wall and the second surrounding wall at least partially borders both the first entrance chamber and the second entrance chamber.
  • each entrance chamber comprises an interface surface which is situated adjacent the main chamber.
  • each entrance chamber comprises an interface surface which is situated adjacent the main chamber.
  • the main chamber comprises a substantially flat portion at a central portion, or inner portion, of the main chamber.
  • the main chamber comprises a substantially featureless portion, or smooth portion, at a central portion, or inner portion, of the main chamber.
  • a maximum width of the main chamber is configured to progressively increase as the main chamber extends away from each of the at least one entrance chamber towards a central portion of the main chamber.
  • a maximum width of the main chamber is configured to not decrease as the main chamber extends away from each of the at least one entrance chamber towards a central portion of the main chamber.
  • the main chamber comprises a central portion which is: at least partially surrounded by a first concave portion, from the first surrounding wall, which is exposed to the main chamber; and at least partially surrounded by a second concave portion, from the second surrounding wall, which is exposed to the main chamber.
  • each of the first and second surrounding wall comprises: a straight portion bordering each entrance chamber; and a curved portion bordering the main chamber.
  • plenum chamber comprises: a first minimum separation between the straight portion of the first surrounding wall and the straight portion of the second surrounding wall; and a second minimum separation between the curved portion of the first surrounding wall and the curved portion of the second surrounding wall; wherein the first minimum separation is smaller than the second minimum separation.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising: the plenum chamber according to any preceding clause; a cartridge, configured to contain aerosolizable material for aerosolising into the aerosol, wherein the cartridge comprises an air inlet; wherein the first surrounding wall and the second surrounding wall are each configured to engage against the cartridge when the cartridge is received by the receptacle.
  • a method of directing a flow of air through an aerosol provision system comprises: causing a flow of air to pass from at least one entrance chamber of a plenum chamber from the aerosol provision system into a main chamber of the plenum chamber; directing the flow of air inside the plenum chamber using a surrounding wall from the plenum chamber, wherein the surrounding wall comprises a first surrounding wall surrounding a first portion of the plenum chamber, and a second surrounding wall surrounding a second portion of the plenum chamber, wherein the first surrounding wall is distinct from the second surrounding wall.
  • a plenum chamber for use in an aerosol provision system, the plenum chamber comprising: at least one entrance chamber, wherein each entrance chamber comprises at least one inlet orifice configured for receiving a flow of air; a main chamber for receiving the air from each entrance chamber; and a surrounding wall, wherein the surrounding wall comprises a first surrounding wall surrounding a first portion of the plenum chamber, and a second surrounding wall surrounding a second portion of the plenum chamber, wherein each of the first and second surrounding walls is configured to engage against a cartridge comprising aerosolizable material.
  • plenum chamber according to any preceding clause, wherein the main chamber comprises a basin for accommodating aerosolizable material.
  • plenum chamber according to any preceding clause, wherein the main chamber comprises a maximum height which is between 0.5mm to 1.5mm.
  • the at least one entrance chamber comprises a first entrance chamber and a second entrance chamber.
  • plenum chamber according to any preceding clause, wherein the first and second surrounding walls terminate at each inlet orifice. 10. The plenum chamber according to any preceding clause, wherein a maximum width of the main chamber is configured to progressively increase as the main chamber extends away from each of the at least one entrance chamber towards a central portion of the main chamber.
  • a maximum width of the main chamber is configured to not decrease as the main chamber extends away from each of the at least one entrance chamber towards a central portion of the main chamber.
  • the main chamber comprises a central portion which is: at least partially surrounded by first concave portion, from the first surrounding wall, which is exposed to the main chamber; and at least partially surrounded by a second concave portion, from the second surrounding wall, which is exposed to the main chamber.
  • each of the first and second surrounding wall comprises: a straight portion bordering each entrance chamber; and a curved portion bordering the main chamber.
  • plenum chamber comprises: a first minimum separation between the straight portion of the first surrounding wall and the straight portion of the second surrounding wall; and a second minimum separation between the curved portion of the first surrounding wall and the curved portion of the second surrounding wall; wherein the first minimum separation is smaller than the second minimum separation.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising: the plenum chamber according to any preceding clause; a cartridge, configured to contain aerosolizable material for aerosolising into the aerosol, wherein the cartridge comprises an air inlet; a body for releasably receiving the cartridge, wherein the body comprises the plenum chamber.
  • the receptacle comprises a first end, and comprises a second, open, end for allowing the cartridge to be inserted into the receptacle, wherein the receptacle comprises a first receptacle wall located at the first end of the receptacle, and wherein the first receptacle wall comprises the plenum chamber.
  • a method of directing a flow of air through an aerosol provision system comprises: engaging a cartridge, configured to contain aerosolizable material for aerosolising into an aerosol, against first and second surrounding walls from a surrounding wall of a plenum chamber from the aerosol provision system; and delivering a flow of air from an inlet orifice from an entrance chamber of the plenum chamber into a main chamber of the plenum chamber.
  • the at least one air inlet channel comprises a first air inlet channel and a second air inlet channel.
  • delivering the flow of air from the inlet orifice from the entrance chamber of the plenum chamber into the main chamber of the plenum chamber comprises: delivering a first flow of air from a first inlet orifice from a first entrance chamber of the plenum chamber into the main chamber of the plenum chamber; and delivering a second flow of air from a second inlet orifice from a second entrance chamber of the plenum chamber into the main chamber of the plenum chamber.
  • delivering the flow of air from the at least one air inlet channel to the inlet orifice comprises: delivering a first portion of the flow of air to the first inlet orifice for allowing this first portion of the flow of air to be delivered as part of the first flow of air; and delivering a second portion of the flow of air to the second inlet orifice for allowing this second portion of the flow of air to be delivered as part of the second flow of air.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising: a cartridge, configured to contain aerosolizable material for aerosolising into the aerosol, wherein the cartridge comprises an air inlet; a body for releasably receiving the cartridge, wherein the body comprises an air-flow receiving orifice for allowing a flow of air to pass to an air-flow detection sensor; wherein the body comprises an aerosolizable material directing portion for directing aerosolizable material, leaking from the air inlet of the cartridge, in a direction away from the air-flow receiving orifice when the cartridge is releasably received by the body.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising: a reservoir of aerosolizable material for aerosolising into the aerosol; an air-flow receiving orifice for allowing a flow of air to pass to an air-flow detection sensor; and an aerosolizable material directing portion for directing aerosolizable material, leaking from the reservoir towards the air-flow receiving orifice, in a direction away from the air-flow receiving orifice, wherein the aerosolizable material directing portion is located between the reservoir and the air-flow receiving orifice.
  • the aerosolizable material directing portion comprises a basin, wherein the air-flow receiving orifice is located outside of the basin.
  • the basin comprises: a first surface for directing aerosolizable material out of the basin in a direction away from the air-flow receiving orifice; and a second surface which is located more proximal to the air-flow receiving orifice than the first surface is located to the air-flow receiving orifice; wherein the second surface is steeper than the first surface for encouraging aerosolizable material to flow out of the basin via the first surface than via the second surface.
  • the aerosol provision system comprises a plenum chamber for directing a flow of air through the aerosol provision system, wherein the plenum chamber comprises the aerosolizable material directing portion.
  • the plenum chamber comprises a main chamber; a first entrance chamber; and a second entrance chamber.
  • the plenum chamber comprises, for each entrance chamber, an interface surface which is situated adjacent the main chamber; wherein the interface surface for the first entrance chamber comprises the first surface, and wherein the interface surface for the second entrance chamber comprises the second surface, for encouraging aerosolizable material to flow out of the basin via the first surface than via the second surface.
  • a method of directing aerosolizable material in an aerosol provision system comprising a cartridge containing aerosolizable material for aerosolising into an aerosol, and a body for releasably receiving the cartridge, wherein the method comprises: directing aerosolizable material, leaking from the air inlet of the cartridge when the cartridge is releasably received by the body, using an aerosolizable material directing portion, in a direction away from an air-flow receiving orifice from the body, wherein the air-flow receiving orifice is for allowing a flow of air to pass to an air-flow detection sensor.
  • a method of directing aerosolizable material in an aerosol provision system comprising: directing aerosolizable material, leaking from a reservoir of the aerosolizable material, using an aerosolizable material directing portion, in a direction away from an air-flow receiving orifice, wherein the air-flow receiving orifice is for allowing a flow of air to pass to an air-flow detection sensor; wherein the aerosolizable material directing portion is located between the reservoir and the air-flow receiving orifice.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising: at least one air inlet channel; and a plenum chamber; wherein the aerosol provision system is configured for allowing a flow of air to pass from outside of the aerosol provision system, through the at least one air inlet channel, and then into the plenum chamber; wherein the aerosol provision system comprises a plane which intersects each of the at least one air inlet channel and a portion of the plenum chamber.
  • each air inlet channel comprises: a first, entry, end for allowing a flow of air to enter the air inlet channel; and a second, exit, end for allowing a flow of air to exit the air inlet channel; wherein the plane intersects the first end, and the second end, of each air inlet channel.
  • each air inlet channel defines a slot extending through a wall of the aerosol provision system.
  • the aerosol provision system comprises a receptacle, for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol; wherein the receptacle comprises the wall.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which is wider than it is tall.
  • each air inlet channel comprises a first air inlet channel and a second air inlet channel.
  • the plenum chamber comprises at least one inlet orifice for allowing a flow of air to pass from the at least one air inlet channel into the plenum chamber; wherein the at least one inlet orifice comprises a first inlet orifice on a first side of the plenum chamber, and comprises a second inlet orifice on a second side of the plenum chamber; wherein each air inlet channel is configured for allowing a flow of air to pass from outside of the aerosol provision system, and into both of the first and second inlet orifices.
  • the aerosol provision system further comprises an air-flow receiving orifice, for allowing a flow of air to pass to an airflow detection sensor; wherein the air-flow inlet orifice is located more proximal to the first inlet orifice, than the air-flow inlet orifice is located to the second inlet orifice, for allowing a flow of air passing through the first inlet orifice to also pass over the air-flow receiving orifice.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width to maximum height ratio of at least 1.5 to 1.
  • each air inlet channel comprises a maximum width of between 1.5mm to 2.0mm. 17. The aerosol provision system according to any preceding clause, wherein each air inlet channel comprises a maximum height of between 0.5mm to 1.0mm.
  • each air inlet channel comprises a maximum length, from a first end of the channel to a second end of the channel, of between 0.5mm to 1.5mm.
  • the plenum chamber is configured to receive a flow of air, from outside of the plenum chamber, about at least one first direction, and is configured redirect the flow of air to exit the plenum chamber about a second direction which is substantially perpendicular to each first direction.
  • the aerosol provision system further comprises: a first end; and a first receptacle wall located at the first end of the receptacle; a second, open, end for allowing a cartridge to be inserted into the receptacle; a second receptacle wall extending between the first end and the second end of the receptacle, wherein the second receptacle wall is configured for surrounding the cartridge when the receptacle is releasably receiving the cartridge; wherein the at least one air inlet channel extends through the second receptacle wall.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width and a maximum height, wherein the maximum width is larger than the maximum height, and wherein the maximum width is perpendicular to the longitudinal axis, and wherein the maximum height is parallel to the longitudinal axis.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising: at least one air inlet channel; and a plenum chamber; wherein the aerosol provision system is configured for allowing a flow of air to pass from outside of the aerosol provision system, through the at least one air inlet channel, and then into the plenum chamber; wherein the aerosol provision system comprises a plane which intersects each of the at least one air inlet channel and a portion of the plenum chamber.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width and a maximum height, wherein the maximum width is larger than the maximum height, and wherein the maximum width is perpendicular to the longitudinal axis, and wherein the maximum height is parallel to the longitudinal axis.
  • a receptacle for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol wherein the receptacle comprises: a first end; and a first receptacle wall located at the first end of the receptacle; a second, open, end for allowing a cartridge to be inserted into the receptacle; a second receptacle wall extending between the first end and the second end of the receptacle, wherein the second receptacle wall is configured for surrounding the cartridge when the receptacle is releasably receiving the cartridge; at least one air inlet channel extending through the second receptacle wall; wherein each air inlet channel comprises a first, entry, end, wherein the first end of each air inlet channel is for receiving a flow of air from outside of the receptacle into the air inlet channel, wherein the first end of each air inlet channel is located on a chamfered portion of the second re
  • chamfered portion comprises a first chamfered portion which is located on an outer surface of the second receptacle wall.
  • each air inlet channel comprises a second, exit, end, wherein the second end of each air inlet channel is for allowing the flow of air to pass out from the air inlet channel, wherein the second end of each air inlet channel is located on a second chamfered portion of the second receptacle wall.
  • each air inlet channel is configured to supply a flow of air into a chamber or cavity inside the receptacle, wherein the chamber is at least partly defined by the first receptacle wall and the second receptacle wall.
  • the at least one air inlet channel comprises: a first air inlet channel extending about a first direction through the second wall of the receptacle; and a second air inlet channel extending about a second direction through the second wall of the receptacle.
  • each air inlet defines a slot extending through the second receptacle wall.
  • each air inlet channel is straight.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which is wider than it is tall.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width to maximum height ratio of at least 1.5 to 1.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising the receptacle according to any preceding clause.
  • An aerosol provision system for generating an aerosol from an aerosolizable material, the aerosol provision system comprising the receptacle according to any of clauses 1-19.
  • a receptacle for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol wherein the receptacle comprises: a first end; and a first receptacle wall located at the first end of the receptacle; a second, open, end for allowing a cartridge to be inserted into the receptacle; a second receptacle wall extending between the first end and the second end of the receptacle, wherein the second receptacle wall is configured for surrounding the cartridge when the receptacle is releasably receiving the cartridge; at least one air inlet channel extending through the second receptacle wall; wherein the receptacle extends between the first end and the second end about a longitudinal axis; wherein each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width and a maximum height, wherein the maximum width is larger than the maximum height, and wherein the maximum
  • each air inlet channel is straight.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width to maximum height ratio of at least 1.5 to 1.
  • each air inlet channel comprises a maximum width of between 1.5mm to 2.0mm.
  • each air inlet channel comprises a maximum height of between 0.5mm to 1.0mm.
  • each air inlet channel comprises a maximum length/thickness of between 0.5mm to 1.5mm.
  • the maximum length is perpendicular to the longitudinal axis.
  • each air inlet channel is located no more than 10mm from the first end of the receptacle.
  • the at least one air inlet channel comprises a plurality of air inlets channels.
  • the at least one air inlet channel comprises: a first air inlet channel extending about a first direction through the second receptacle wall; and a second air inlet channel extending about a second direction through the second receptacle wall.
  • each air inlet channel comprises a first, entry, end, wherein the first end of each air inlet channel is for receiving a flow of air from outside of the receptacle into the air inlet channel, wherein the first end of each air inlet channel is located on a chamfered portion of the receptacle.
  • chamfered portion comprises a first chamfered portion which is located on an outer surface of the receptacle.
  • each air inlet channel comprises a second, exit, end, wherein the second end of each air inlet channel is for allowing the flow of air to pass out from the air inlet channel, wherein the second end of each air inlet channel is located on a second chamfered portion of the receptacle.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising a first end; and a second end, opposite the first end, for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into an aerosol; at least one air inlet channel; wherein the body extends between the first end and the second end about a longitudinal axis; wherein each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width and a maximum height, wherein the maximum width is larger than the maximum height, and wherein the maximum width is perpendicular to the longitudinal axis, and wherein the maximum height is parallel to the longitudinal axis.
  • a body for an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising: a receptacle for releasably receiving a cartridge configured to contain aerosolizable material for aerosolising into the aerosol, wherein the receptacle comprises: at least one air inlet; and a plenum chamber; wherein the receptacle is configured for allowing the cartridge to engage against a portion of the plenum chamber when the receptacle is releasably receiving the cartridge, for then allowing a flow of air to pass from outside of the receptacle, through the at least one air inlet, into the receptacle, and then into the plenum chamber.
  • the plenum chamber comprises at least one inlet orifice for allowing a flow of air to pass from the at least one air inlet into the plenum chamber.
  • the receptacle comprises an airflow receiving orifice for allowing a flow of air to pass from the receptacle to an air-flow detection sensor.
  • the air-flow receiving orifice is located at, or next to, one of the at least one inlet orifice.
  • the plenum chamber comprises a surrounding wall.
  • the surrounding wall comprises: a first surrounding wall surrounding a first portion of the plenum chamber; and a second surrounding wall surrounding a second portion of the plenum chamber; wherein the first surrounding wall is distinct from the second surrounding wall.
  • the receptacle comprises: a first end; and a second, open, end for allowing a cartridge to be inserted into the receptacle; and a first receptacle wall located at the first end of the receptacle.
  • each air inlet extends through the at least one second receptacle wall.
  • the receptacle comprises at least one cartridge-receiving surface located between the first end and the second end of the receptacle, wherein the receptacle is configured for allowing the cartridge to engage against the cartridge-receiving surface when the receptacle is receiving the cartridge.
  • each cartridge-receiving surface is at least one of i) substantially flat and/or ii) resilient.
  • each cartridge-receiving surface is substantially parallel to the first receptacle wall.
  • each air inlet is located closer to the first end of the receptacle, than the air inlet is located to the second end of the receptacle.
  • each air inlet is located no more than 10mm from the first end of the receptacle.
  • each air inlet defines a slot extending through the second receptacle wall.
  • each air inlet comprises an air inlet channel.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which is wider than it is tall.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprises a maximum width to maximum height ratio of at least 1.5 to 1.
  • each air inlet channel comprises a maximum width of between 1.5mm to 2.0mm.
  • each air inlet channel comprises a maximum height of between 0.5mm to 1.0mm.
  • each air inlet channel comprises a maximum length/thickness of between 0.5mm to 1.5mm.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which is elongate or non-circular.
  • each air inlet channel comprises a cross sectional area, for the passage of air, which comprise a maximum width and a maximum height, wherein the maximum width is larger than the maximum height.
  • each air inlet channel defines a slot passing through a wall of the receptacle.
  • the at least one air inlet comprises: a first air inlet defining a first air inlet channel extending about a first direction through a wall of the receptacle; and a second air inlet defining a second air inlet channel extending about a second direction through a wall of the receptacle.
  • each entrance chamber comprises one of the at least one inlet orifice.
  • each entrance chamber comprises an entrance chamber maximum width, wherein the main chamber maximum width is between 1.4 to 2.6 times the size of each entrance chamber maximum width.
  • each entrance chamber comprises a maximum height which is between 0.2mm to 0.45mm.
  • each entrance chamber is substantially straight.
  • each entrance chamber is elongate.
  • each entrance chamber is also configured to be covered by the cartridge when the cartridge is engaging the portion of the plenum chamber.
  • plenum chamber is configured to be covered by the cartridge when the cartridge is engaging the portion of the plenum chamber.
  • the aerosolizable material directing portion comprises a basin, wherein the air-flow receiving orifice is located outside of the basin.
  • the receptacle further comprises an outer chamber between the at least one air inlet and the plenum chamber.
  • the at least one cartridge-supporting portion comprises a first cartridge-supporting portion and a second cartridge-supporting portion, wherein the plenum chamber is located between the first cartridge-supporting portion and the second cartridge-supporting portion.
  • each cartridge-supporting portion extends from the first receptacle wall.
  • the receptacle further comprises at least one electrode which is configured, in use, for supplying electrical power to a cartridge received in the receptacle.
  • each electrode is located between the plenum chamber and one of the at least one cartridgesupporting portion.
  • the body further comprises a plane which intersects each of the at least one air inlet and a portion of the plenum chamber.
  • each air inlet comprises an air inlet channel; wherein each air inlet channel comprises a first, entry, end, wherein the first end of each air inlet channel is for receiving a flow of air from outside of the receptacle into the air inlet channel, wherein the first end of each air inlet channel is located on a chamfered portion of the receptacle.
  • chamfered portion comprises a first chamfered portion which is located on an outer surface of the receptacle.
  • each air inlet channel comprises a second, exit, end, wherein the second end of each air inlet channel is for allowing the flow of air to pass out from the air inlet channel, wherein the second end of each air inlet channel is located on a second chamfered portion of the receptacle.
  • each air inlet of the receptacle is configured, when the receptacle is receiving the cartridge, to extend through a wall of the receptacle about a length direction which is not parallel to a length direction of the air inlet from the cartridge.
  • each air inlet of the receptacle is configured, when the receptacle is receiving the cartridge, to extend about a length direction which is substantially perpendicular to a length direction of the air inlet from the cartridge.
  • a method of directing a flow of air through an aerosol provision system comprises: causing a flow of air to pass through at least one air inlet from a body of the aerosol provision system; delivering the flow of air from the at least one air inlet into a plenum chamber of the body; and delivering the flow of air from the plenum chamber into an air inlet of a cartridge which is engaged against a portion of the plenum chamber.
  • a method according to clause 98 wherein the method further comprises: delivering the flow of air from the at least one air inlet into a receptacle of the body, wherein the receptacle is configured for releasably receiving the cartridge, and wherein the receptacle comprises the plenum chamber; and delivering the flow of air from the receptacle into the plenum chamber of the body.
  • a plenum chamber for use in an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising any feature, or any combination or permutation of features, as described in any of clauses 1-100 and/or as recited in any of the clauses from the first-sixth sets of clauses.
  • a body for use in an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising any feature, or any combination or permutation of features, as described in any of clauses 1-100 and/or as recited in any of the clauses from the first-sixth sets of clauses.
  • a receptacle for use in an aerosol provision system for generating an aerosol from an aerosolizable material, the body comprising any feature, or any combination or permutation of features, as described in any of clauses 1-100 and/or as recited in any of the clauses from the first-sixth sets of clauses.
  • An aerosol provision system for generating an aerosol from an aerosolizable material comprising any feature, or any combination or permutation of features, as described in any of clauses 1-100 and/or as recited in any of the clauses from the first-sixth sets of clauses.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
EP22744503.8A 2021-08-13 2022-07-11 Aerosolbereitstellungssystem Pending EP4384029A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17/445,050 US20230045836A1 (en) 2021-08-13 2021-08-13 Aerosol provision system
PCT/GB2022/051784 WO2023017236A2 (en) 2021-08-13 2022-07-11 Aerosol provision system

Publications (1)

Publication Number Publication Date
EP4384029A2 true EP4384029A2 (de) 2024-06-19

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Application Number Title Priority Date Filing Date
EP22744503.8A Pending EP4384029A2 (de) 2021-08-13 2022-07-11 Aerosolbereitstellungssystem

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US (2) US20230045836A1 (de)
EP (1) EP4384029A2 (de)
KR (1) KR20240031373A (de)
CN (1) CN117915794A (de)
CA (1) CA3224627A1 (de)
GB (1) GB202116543D0 (de)
WO (1) WO2023017236A2 (de)

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CN121548361A (zh) * 2023-07-24 2026-02-17 菲利普莫里斯生产公司 具有受限部分的气溶胶生成系统

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Publication number Publication date
GB202116543D0 (en) 2021-12-29
US20240268469A1 (en) 2024-08-15
CA3224627A1 (en) 2023-02-16
KR20240031373A (ko) 2024-03-07
US20230045836A1 (en) 2023-02-16
CN117915794A (zh) 2024-04-19
WO2023017236A2 (en) 2023-02-16
WO2023017236A3 (en) 2023-03-23

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