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WO2025224345A1 - Système et dispositif de fourniture d'aérosol - Google Patents

Système et dispositif de fourniture d'aérosol

Info

Publication number
WO2025224345A1
WO2025224345A1 PCT/EP2025/061433 EP2025061433W WO2025224345A1 WO 2025224345 A1 WO2025224345 A1 WO 2025224345A1 EP 2025061433 W EP2025061433 W EP 2025061433W WO 2025224345 A1 WO2025224345 A1 WO 2025224345A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol
heating element
provision device
protrusions
article
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
PCT/EP2025/061433
Other languages
English (en)
Inventor
Min Xu
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 WO2025224345A1 publication Critical patent/WO2025224345A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating

Definitions

  • the present application relates to the field of aerosol provision, and more particularly relates to an aerosol provision device and an aerosol provision system.
  • An aerosol provision system comprises an aerosol provision device and an aerosolgenerating article (such as a tobacco article).
  • the aerosol-generating article is inserted into a heating chamber of the aerosol provision device, and an aerosol may be obtained by heating the aerosol-generating article through the aerosol provision device.
  • This heat-not-burn technology enables the aerosol-generating article to release active ingredients during a pre - combustion carbonization stage prior to combustion, thereby reducing the generation of tar and harmful substances.
  • Heating modes of the aerosol provision device include external heating and internal heating, wherein in the internal heating mode, a needle-type or plate-type heating body generally penetrates into a substrate segment of the aerosol-generating article to diffuse heat from a centre of the aerosol-generating article outwards; and in the external heating mode, a barrel-shaped heating body is generally adopted to enclose the substrate segment of the aerosol-generating article to diffuse heat from an exterior of the aerosol-generating article inwards.
  • an aerosol provision device comprising a heating element, having a heating chamber for containing an aerosol-generating article, the heating element being configured to heat the aerosol-generating article received in the heating chamber to generate an aerosol; and a protrusion structure, arranged on an inner wall of the heating element, the protrusion structure comprising multiple protrusion components spaced apart along a length direction of the heating element, each protrusion component comprising multiple protrusions spaced apart along a circumferential direction of the heating element.
  • a gap may be formed between the aerosol-generating article and the inner wall of the heating element, allowing airflow to flow along the circumferential and length directions of the heating element.
  • the protrusion structure may be configured to make point contact with the aerosol-generating article received in the heating chamber.
  • each protrusion may comprise a first guiding portion for guiding the aerosol-generating article into the heating chamber, an abutting portion for abutting the aerosol-generating article and a second guiding portion for guiding the aerosol-generating article out of the heating chamber.
  • the protrusions may be configured to be tangent to an outer wall of the aerosol-generating article received in the heating chamber.
  • the protrusions may be configured to press against the aerosol-generating article along a radial direction of the aerosol-generating article.
  • a force exerted on the aerosolgenerating article by the protrusions may not greater than 2N.
  • a friction force between the protrusions and the aerosol-generating article in the process of the aerosol-generating article exiting the heating chamber along the length direction, may be 0.6N to 1.5N.
  • the protrusions may be hemispherical in shape.
  • a height of the protrusions protrusion from the inner wall of the heating element may be 0.1mm to 0.3mm.
  • each protrusion component may comprise 10 to 12 protrusions.
  • a distance between adjacent protrusion components may be 3mm to 5mm.
  • the distance between adjacent protrusions may be 3mm to 5mm.
  • a surface area of the protrusions may be 0.1mm 2 to 0.4mm 2 .
  • a ratio of a heating area of the aerosol-generating article accommodated in the heating element to a total surface area of all protrusions on the heating element may be 49:1 to 45:1.
  • the protrusion structure may be integrally formed with the heating element.
  • the inner wall and/or an outer wall of the heating element may be rough surfaces.
  • a surface of the heating element may be a rough surface obtained through laser texturing or chemical etching treatment.
  • the heating element may have an insertion interface for the insertion of the aerosol-generating article, the insertion interface may be in communication with the heating chamber, and the insertion interface may be provided with a guiding surface to guide the aerosol-generating article into the heating chamber; and the heating element may be constructed in a cylindrical shape.
  • an aerosol provision system comprising an aerosol provision device as claimed in the first aspect described above and a removable aerosol-generating article arranged in the aerosol provision device.
  • an aerosol provision device comprising: a heating element, having a heating chamber configured to receive at least a portion of an article comprising aerosol generating material, the heating element being configured to heat the article to generate an aerosol; and a protrusion structure on an inner surface of the heating element, the protrusion structure comprising multiple protrusion components spaced apart along a longitudinal direction of the heating element, each protrusion component comprising multiple protrusions spaced apart along a circumferential direction of the heating element.
  • the protrusion structure is arranged on the inner wall of the heating element, the protrusion structure comprises multiple protrusion components spaced apart along the length (e.g. longitudinal) direction of the heating element, and each protrusion component comprises multiple protrusions spaced apart along the circumferential direction of the heating element, so that when the aerosol-generating article is inserted into the heating element, the protrusions abut the peripheral surface of the aerosol-generating article to clamp and limit the article, which may prevent the aerosol-generating article from falling off.
  • Each protrusion on the protrusion structure makes contact with the aerosolgenerating article, the heating element directly transfers heat to the aerosol-generating article through the protrusions, and a part of the inner wall of the heating element which does not make direct contact with the aerosol-generating article may bake the aerosol-generating article, thereby improving the heating efficiency of the heating element. Additionally, due to gaps between the protrusions, air heated by the heating element may circulate between the gaps, so that temperatures of air between the inner wall of the heating element and the aerosol-generating article tend to be consistent, thereby ensuring uniform heating of the aerosol-generating article.
  • the protrusions of the protrusion structure are uniformly distributed on the inner wall of the heating element, and clamping forces exerted on the aerosolgenerating article by the protrusions are equal. Due to a small contact area and a small friction force between the protrusions and the aerosol-generating article, in the process of inserting or extracting the aerosol-generating article, the aerosol-generating article may be less likely to be bent.
  • the surface of the heating element By machining the surface of the heating element to be the rough surface, electrical resistance of the heating element may be increased, which may improve the heating efficiency. Compared with a heating element with a smooth surface, this improvement can save the energy consumption of the aerosol provision device.
  • FIG. 1 is a schematic structural diagram of a heating module of an aerosol provision device
  • FIG. 2 is a schematic cross-sectional structural diagram of the heating module shown in FIG. 1;
  • FIG. 3 and FIG. 4 are schematic structural diagrams of a heating element of the aerosol provision device
  • FIG. 5 is a cross-sectional diagram of the heating element of the aerosol provision device
  • FIG. 6 is a schematic structural diagram of an aerosol-generating article received in the heating module.
  • FIG. 7 is a schematic partial diagram of the structure shown in FIG. 6.
  • 10 aerosol provision device 100 housing, 101 containing chamber, 102 accommodating opening, 103 gap, 200 heating element, 201 heating chamber, 202 insertion interface, 203 air inlet, 204 guiding surface, 205 protrusion, 206 first guiding portion, 207 second guiding portion, 208 abutting portion, 300 coil, and 20 aerosol-generating article.
  • the term “delivery system” is intended to encompass systems that deliver at least one substance to a user in use, and includes: combustible aerosol provision systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for roll-your-own or for make-your-own cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material); non-combustible aerosol provision systems that release compounds from an aerosolgenerating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials; and aerosol-free delivery systems that deliver the at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may
  • a “combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is combusted or burned during use in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a combustible aerosol provision system, such as a system selected from the group consisting of a cigarette, a cigarillo and a cigar.
  • the disclosure relates to a component for use in a combustible aerosol provision system, such as a filter, a filter rod, a filter segment, a tobacco rod, a spill, an aerosol-modifying agent release component such as a capsule, a thread, or a bead, or a paper such as a plug wrap, a tipping paper or a cigarette paper.
  • a component for use in a combustible aerosol provision system such as a filter, a filter rod, a filter segment, a tobacco rod, a spill, an aerosol-modifying agent release component such as a capsule, a thread, or a bead, or a paper such as a plug wrap, a tipping paper or a cigarette paper.
  • a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
  • the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
  • END electronic nicotine delivery system
  • the non-combustible aerosol provision system is an aerosolgenerating material heating system, also known as a heat-not-burn system.
  • An example of such a system is a tobacco heating system.
  • the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
  • Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.
  • the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
  • the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non-combustible aerosol provision device.
  • the disclosure relates to consumables comprising aerosolgenerating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
  • the non-combustible aerosol provision system such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller.
  • the power source may, for example, be an electric power source or an exothermic power source.
  • the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
  • the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosolmodifying agent.
  • the delivery system is an aerosol-free delivery system that delivers at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may not comprise nicotine.
  • the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised.
  • either material may comprise one or more active constituents, one or more flavours, one or more aerosolformer materials, and/or one or more other functional materials.
  • the substance to be delivered comprises an active substance.
  • the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
  • the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
  • the active substance may be naturally occurring or synthetically obtained.
  • the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
  • the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
  • the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.
  • the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
  • botanical includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
  • Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, Wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon
  • the mint may be chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.
  • the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco. In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp.
  • the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
  • the substance to be delivered comprises a flavour.
  • flavour and “flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers.
  • flavour materials may include naturally occurring flavour 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,
  • the flavour comprises menthol, spearmint and/or peppermint.
  • the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry.
  • the flavour comprises eugenol.
  • the flavour comprises flavour components extracted from tobacco.
  • the flavour comprises flavour components extracted from cannabis.
  • the flavour 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 eucolyptol, WS-3.
  • Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants. In some embodiments, the aerosol-generating material may comprise an “ amorphous solid ” , which may alternatively be referred to as a “monolithic solid ” (i.e. non-fibrous). In some embodiments, the amorphous solid may be a dried gel. The amorphous solid is a solid material that may retain some fluid, such as liquid, within it. In some embodiments, the aerosol-generating material may for example comprise from about 50wt%, 60wt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or 100wt% of amorphous solid.
  • the aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • the aerosol-former material may comprise one or more constituents capable of forming an aerosol.
  • the aerosol-former material may comprise one or more of 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 materials may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the material may be present on or in a support, to form a substrate.
  • the support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy.
  • the support comprises a susceptor.
  • the susceptor is embedded within the material.
  • the susceptor is on one or either side of the material.
  • a consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use.
  • the heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.
  • a susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field.
  • the susceptor may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material.
  • the heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material.
  • the susceptor may be both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms.
  • the device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.
  • An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol.
  • the aerosolmodifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent.
  • the aerosol-modifying agent may, for example, be an additive or a sorbent.
  • the aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent.
  • the aerosol-modifying agent may, for example, be a solid, a liquid, or a gel.
  • the aerosolmodifying agent may be in powder, thread or granule form.
  • the aerosol-modifying agent may be free from filtration material.
  • An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material.
  • the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy, so as to release one or more volatiles from the aerosol-generating material to form an aerosol.
  • the aerosol generator is configured to cause an aerosol to be generated from the aerosol-generating material without heating.
  • the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.
  • Aerosol delivery systems may also be referred to as vapour delivery systems such as nebulisers or e-cigarettes.
  • vapour delivery systems such as nebulisers or e-cigarettes.
  • e-cigarette or “electronic cigarette” may sometimes be used, but it will be appreciated this term may be used interchangeably with aerosol delivery system I device and electronic aerosol delivery system I device.
  • aerosol and vapour and related terms such as “vaporise”, “volatilise” and “aerosolise”, may generally be used interchangeably.
  • Aerosol delivery systems e-cigarettes
  • a modular assembly comprising a reusable device part and a replaceable (disposable/consumable) cartridge part.
  • the replaceable cartridge part will comprise the aerosol-generating material and the vaporiser (which may collectively be called a “ cartomizer” ) and the reusable device part will comprise the power provision (e.g. rechargeable power source) and control circuitry.
  • the reusable device part will often comprise a user interface for receiving user input and displaying operating status characteristics
  • the replaceable cartridge device part in some cases comprises a temperature sensor for helping to control temperature.
  • Cartridges are electrically and mechanically coupled to the control unit for use, for example using a screw thread, bayonet, or magnetic coupling with appropriately arranged electrical contacts.
  • the cartridge may be removed from the reusable part and a replacement cartridge attached in its place.
  • Systems and devices conforming to this type of two-part modular configuration may generally be referred to as two-part systems/devices.
  • certain embodiments of the disclosure are based on aerosol delivery systems which are operationally configured to provide functionality in accordance with the principles described herein and the constructional aspects of systems configured to provide the functionality in accordance with certain embodiments of the disclosure is not of primary significance.
  • the present disclosure provides an aerosol provision device and system which achieve the clamping and fixing of the aerosol-generating article without the need for the additional arrangement of new components or increasing operation steps through an improved design of a structure of the heating element.
  • An aerosol provision device 10 comprises a shell, a heating module and an energy supply module, wherein the heating module and the energy supply module are arranged in the shell, the heating module comprises a heating element having a heating chamber for accommodating an aerosol-generating article 20, the energy supply module is electrically connected to the heating element, and the heating element can generate heat in the case of electrical conduction, so as to heat the aerosol-generating article 20 accommodated in the heating chamber to generate an aerosol.
  • the heating module comprises a housing 100, a heating element 200 and a coil 300, wherein the housing 100 is internally provided with a containing chamber 101, a top of the housing 100 is provided with an accommodating opening 102 in communication with the containing chamber 101, the heating element 200 is arranged in the containing chamber 101, the heating element 200 is internally provided with a heating chamber 201, a top of the heating element 200 is provided with an insertion interface 202, the insertion interface 202 is in communication with the accommodating opening 102 and the heating chamber 201 , and the coil 300 is arranged around the heating element 200 and located between an outer wall of the heating element 200 and an inner wall of the housing 100.
  • the outer wall of the heating element 200 may be provided as an outer surface of the (e.g. wall of) the heating element 200.
  • the inner wall of the housing 100 may be provided as an inner surface of the (e.g. wall of) the housing 100.
  • the aerosol-generating article 20 can enter the heating chamber 201 through the accommodating opening 102 and the insertion interface 202 sequentially.
  • the heating element 200 is made of a magnetic induction material, and when the coil 300 is energized to generate an induction magnetic field, the heating element 200 located in the induction magnetic field heats up, thereby heating the aerosol-generating article 20 accommodated therein.
  • a protrusion 205 structure is arranged on the inner wall of the heating element 200, the protrusion 205 structure comprises multiple protrusion 205 components spaced apart along a length direction of the heating element 200, and each protrusion 205 component comprises multiple protrusions 205 spaced apart along a circumferential direction of the heating element 200.
  • the inner wall of the heating element 200 may be provided as an inner surface of the (e.g. wall) of the heating element 200.
  • the heating element 200 is in a cylindrical shape, and the protrusion 205 structure is arranged on the inner wall of the cylindrical heating element 200.
  • An insertion interface 202 in a top of the cylindrical heating element 200 is further provided with a guiding surface 204 to guide the aerosol-generating article 20 into the heating chamber 201.
  • Each protrusion 205 component comprises 10 to 12 protrusions 205.
  • a distance between adjacent protrusions 205 components is 3mm to 5mm.
  • the distance between adjacent protrusions 205 is 3mm to 5mm.
  • the protrusion 205 structure may be integrally formed with the heating element 200.
  • the protrusions 205 may be constructed on an inner surface of the heating element 200 by a stamping process.
  • the protrusions 205 in the protrusion 205 structure may have same or different shapes and sizes.
  • the length direction is provided as the longitudinal direction of the heating element 200.
  • the multiple protrusions 205 are arranged on the inner wall of the heating element 200, when the aerosol-generating article 20 is accommodated in the heating chamber 201, these protrusions 205 abut the peripheral surface of the aerosol-generating article 20, and under the action of a friction force between the two, the aerosol-generating article 20 does not detach from the heating element 200 in the absence of a pulling force. There are multiple contact positions between the aerosol-generating article 20 and the heating element 200, allowing the heat generated by the heating element 200 to be rapidly transferred to the aerosol-generating article 20. Since these protrusions 205 are substantially distributed throughout the heating element 200, the heating element 200 can uniformly dissipate heat, thereby ensuring that the heat received by various regions of the aerosolgenerating article 20 is similar, and achieving uniform heating.
  • a gap 103 is formed between the aerosol-generating article 20 and the inner wall of the heating element 200, and the gap 103 extends along the circumferential and length directions of the heating element 200, allowing air to freely circulate in the gap 103.
  • the heating element 200 heats the air in the gap 103, so that a part of the aerosol-generating article 20 located in the heating chamber 201 is uniformly wrapped by hot air, and more uniform heating of the aerosol-generating article 20 is achieved.
  • a height of the protrusions 205 protruding from the inner wall of the heating element 200 is 0.1mm to 0.3mm, and a width of the gap 103 is consistent with the height of the protrusions 205 protruding from the inner wall of the heating element 200.
  • the protrusions 205 may be in any shape, but in order to prevent the protrusions 205 from puncturing a packaging material of the aerosol-generating article 20, the protrusions 205 are provided with gentle guiding surfaces at least in an insertion direction and an extraction direction of the aerosol-generating article 20, and the guiding surfaces may be, for example, inclined surfaces or curved surfaces. Depending on different shapes of the protrusions 205, the protrusions 205 may make surface contact, point contact or line contact with the aerosol-generating article 20.
  • each protrusion 205 comprises a first guiding portion 206, a second guiding portion 207 and an abutting portion 208, wherein the first guiding portion 206 is used for guiding the aerosol-generating article 20 into the heating chamber 201 , the abutting portion 208 is used for abutting the aerosol-generating article 20, and the second guiding portion 207 is used for guiding the aerosol-generating article 20 out of the heating chamber 201.
  • the protrusions 205 are hemispherical in shape.
  • the protrusions 205 are tangential to the outer wall of the aerosol-generating article 20.
  • the outer wall of the aerosol-generating article 20 may be provided as an outer surface of the (e.g. wall of) the aerosol-generating article 20.
  • the protrusions 205 press against the aerosol-generating article 20 along a radial direction of the aerosol-generating article 20, wherein when the protrusions 205 press against the aerosol-generating article 20, a force exerted on the aerosol-generating article 20 by the protrusions 205 is not greater than 2N.
  • a friction force between the protrusions 205 and the aerosolgenerating article 20 is 0.6N to 1.5N.
  • the protrusions 205 abut the aerosol-generating article 20 and exert the force on the aerosol-generating article 20, so that the aerosol-generating article 20 can be limited in the heating chamber 201 and prevented from falling off in the absence of pulling.
  • the aerosol-generating article 20 may be taken out only by exerting a relatively small pulling force, thereby being easy for the user to operate and less likely to break the article.
  • a surface area of a single protrusion 205 is 0.1mm 2 to 0.4mm 2 .
  • a ratio of a heating area of the aerosol-generating article 20 to a total surface area of all protrusions 205 is 49:1 to 45:1.
  • the surface area of each protrusion 205 is 0.2mm 2
  • the total surface area of all the protrusions on the heating element is 16mm 2 .
  • the heating area of the aerosol-generating article is 787.1mm 2
  • the ratio of the heating area of the aerosolgenerating article to the total surface area of all the protrusions is 787.1:16, approximately 49:1
  • the heating area of the aerosol-generating article refers to a surface area of a part of the aerosol-generating article into the heating chamber 201 , and this part can be heated by the heating element 200.
  • the protrusion 205 structure on the inner wall of the heating element 200, the surface area of the inner wall of the heating element 200 is increased, allowing the heating element 200 to release more heat.
  • the protrusions 205 are distributed throughout the inner wall of the heating element 200, a contact area between the single protrusion 205 and the aerosol-generating article 20 is not large, so that the force exerted on the aerosol-generating article 20 by each protrusion 205 is relatively small, a force required to insert and extract the aerosol-generating article 20 is also relatively small, and more air circulating spaces are also constructed between the aerosol-generating article 20 and the inner wall of the heating element 200 simultaneously.
  • the heating element 200 is further provided with an air inlet 203, and a position of the air inlet 203 matches an airflow passage of the aerosol provision device 10. If the airflow passage of the aerosol provision device 10 passes through the containing chamber 101 from bottom to top, the bottom of the heating element 200 is provided with the air inlet 203, allowing fresh air to enter the heating chamber 201 through the air inlet 203 from the bottom of the heating element 200. If the airflow passage of the aerosol provision device 10 is in communication with the containing chamber 101 from a side surface, a side wall of the heating element 200 may be provided with the air inlet 203, allowing fresh air to enter the heating chamber 201 through the side wall of the heating element 200.
  • FIG. 3 and FIG. 4 show a structure of the heating element 200.
  • the heating element 200 is internally provided with the heating chamber 201
  • the top of the heating element 200 is provided with an insertion interface 202
  • the bottom of the heating element 200 is provided with the air inlet 203
  • the protrusions 205 protruding towards the heating chamber 201 are arranged on the inner wall of the heating element 200.
  • the entire heating element 200 has a length of 34mm, and from the bottom of the heating element 200, one protrusion 205 component is arranged at an interval of 4mm, wherein each protrusion 205 component comprises 10 to 12 protrusions 205 of the same sizes and shapes distributed along the circumferential direction of the heating element 200, and the height of each protrusion 205 protruding from the inner wall of the heating element 200 is 0.2mm.
  • a diameter of the aerosol-generating article 20 is precisely tangent to the protrusions 205, the force exerted on the aerosol-generating article 20 by the protrusions 205 is within 2N, and the force required to extract the aerosol-generating article 20 is 0.6N to 1 ,5N.
  • the surface of the heating element may be a smooth surface or a rough surface, and the protrusion structure is arranged on the smooth surface or the rough surface.
  • the rough surface may act as a textured surface.
  • the inner wall or the outer wall of the heating element is the rough surface, or both the inner wall and the outer wall of the heating element are rough surfaces.
  • the surface of the heating element may be roughened through a laser texturing treatment method or a chemical etching process.
  • a sheet material for preparing the heating element may be subjected to laser texturing treatment in advance to obtain the sheet material having a rough surface, then protrusions are formed on the surface of the sheet material through a stamping process, and subsequently the sheet material is rolled into the heating element.
  • the protrusions may be firstly formed on the surface of the sheet material through the stamping process, then the sheet material is rolled into a cylindrical shape, and subsequently the cylindrical heating element is chemically etched to roughen the surface of the heating element.
  • the heating element having the rough surface requires a smaller current to achieve the same heating temperature, thereby reducing the energy consumption, and enabling the aerosol provision device to have a prolonged battery life and increased durability.
  • This example further provides an aerosol provision system, comprising an aerosol provision device 10 and an aerosol-generating article 20, wherein the aerosol-generating article 20 is removably arranged in the aerosol provision device 10.
  • an aerosol provision system comprising an aerosol provision device 10 and an aerosol-generating article 20, wherein the aerosol-generating article 20 is removably arranged in the aerosol provision device 10.
  • a substrate segment of the aerosol-generating article 20 sequentially passes through an accommodating opening 102 in the top of the housing 100 and an insertion interface 202 in the top of the heating element 200 to enter the heating chamber 201.
  • the protrusions 205 on the inner wall of the heating element 200 abut the outer wall of the aerosol-generating article 20, so as to limit the aerosol-generating article 20 in the heating chamber 201 and prevent the article from detaching.
  • the heating element 200 After the coil 300 is energized, the heating element 200 generates heat, a part of the heat is directly transferred to the aerosol-generating article 20 through the protrusions 205, a part of the heat heats air between the aerosol-generating article 20 and the inner wall of the heating element 200, and the heated air circulates between the protrusions 205, so that the temperature of the air surrounding the periphery of the aerosol-generating article 20 tends to be consistent. Due to the enclosure of the hot air, a part of the aerosol-generating article 20 which does not make contact with the protrusions 205 is indirectly heated.
  • the protrusions 205 are uniformly distributed on the heating element 200 and the hot air smoothly circulates in the gap 103 between the aerosol-generating article 20 and the inner wall of the heating element, the substrate segment of the aerosol-generating article 20 is uniformly heated, thereby improving the heating efficiency and the puffing experience of the user. After puffing is completed, the user may hold and pull the aerosol-generating article 20 out. Since the heating element 200 makes multi-point contact with the aerosol-generating article 20, the force exerted on any region of the aerosol-generating article 20 by the protrusions 205 is not large, thereby being less likely to break the aerosol-generating article 20 during extraction.
  • the referential terminology “an embodiment,” “some embodiments,” “example,” “specific example,” or “some examples” means that specific features, structures, materials, or characteristics described in connection with the embodiment or example are comprised in at least one embodiment or example.
  • the indicative expression of the above-mentioned terms does not necessarily refer to the same embodiment or example.
  • the described specific features, structures, materials, or characteristics may be combined in any suitable way in any one or more embodiments or examples.
  • the terms “first,” “second,” etc. are used merely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.
  • the characteristics defined as “first,” “second,” etc. may explicitly or implicitly comprise at least one such characteristic.
  • the term “multiple” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • connection may be a fixed connection or a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary medium, it may be the internal communication of two components or the interaction between two components, unless explicitly defined otherwise.
  • connection may be a fixed connection or a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary medium, it may be the internal communication of two components or the interaction between two components, unless explicitly defined otherwise.

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  • Resistance Heating (AREA)

Abstract

L'invention concerne un système et un dispositif de fourniture d'aérosol (10). Le dispositif de fourniture d'aérosol (10) comprend : un élément chauffant (200) ayant une chambre de chauffage (201) destinée à contenir un article de génération d'aérosol (20), l'élément chauffant (200) étant conçu pour chauffer l'article de génération d'aérosol (20) reçu dans la chambre de chauffage (201) pour générer un aérosol ; et une structure en saillie (205) disposée sur une paroi interne de l'élément chauffant (200), la structure en saillie (205) comprenant de multiples composants en saillie (205) espacés dans le sens de la longueur (par exemple longitudinal) de l'élément chauffant (200), chaque composant en saillie (205) comprenant de multiples saillies (205) espacées dans le sens circonférentiel de l'élément chauffant (200).
PCT/EP2025/061433 2024-04-26 2025-04-25 Système et dispositif de fourniture d'aérosol Pending WO2025224345A1 (fr)

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CN2024208941869 2024-04-26
CN202420894186.9U CN222382647U (zh) 2024-04-26 2024-04-26 气溶胶供应装置及系统

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021044023A1 (fr) * 2019-09-06 2021-03-11 Jt International S.A. Dispositif de génération d'aérosol et chambre de chauffage associée
EP4091472A1 (fr) * 2020-01-16 2022-11-23 Shenzhen First Union Technology Co., Ltd. Dispositif de chauffage
US20230329342A1 (en) * 2020-09-25 2023-10-19 Shenzhen First Union Technology Co., Ltd. Vapor generation device
EP4285758A1 (fr) * 2021-01-29 2023-12-06 Shenzhen Smoore Technology Limited Dispositif de génération d'aérosol

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021044023A1 (fr) * 2019-09-06 2021-03-11 Jt International S.A. Dispositif de génération d'aérosol et chambre de chauffage associée
EP4091472A1 (fr) * 2020-01-16 2022-11-23 Shenzhen First Union Technology Co., Ltd. Dispositif de chauffage
US20230329342A1 (en) * 2020-09-25 2023-10-19 Shenzhen First Union Technology Co., Ltd. Vapor generation device
EP4285758A1 (fr) * 2021-01-29 2023-12-06 Shenzhen Smoore Technology Limited Dispositif de génération d'aérosol

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