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WO2025229032A1 - Dispositif de fourniture d'aérosol et procédé de commande de chauffage - Google Patents

Dispositif de fourniture d'aérosol et procédé de commande de chauffage

Info

Publication number
WO2025229032A1
WO2025229032A1 PCT/EP2025/061778 EP2025061778W WO2025229032A1 WO 2025229032 A1 WO2025229032 A1 WO 2025229032A1 EP 2025061778 W EP2025061778 W EP 2025061778W WO 2025229032 A1 WO2025229032 A1 WO 2025229032A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
region
heating
aerosol
provision device
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/EP2025/061778
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 WO2025229032A1 publication Critical patent/WO2025229032A1/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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present application relates to the field of aerosol provision technology, and particularly relates to an aerosol provision device and a heating control method thereof.
  • An aerosol provision system may comprise an aerosol provision device and an aerosol-generating article (such as a tobacco product). By inserting the aerosol-generating article into the heating chamber of the aerosol provision device and heating the aerosolgenerating article through the aerosol provision device, an aerosol may be obtained.
  • an aerosol may be obtained.
  • the aerosolgenerating article may be continuously heated at a high temperature, and the concentration of the released aerosol may be high.
  • the effective components in the aerosol-generating article may be gradually released completely, and the concentration of the aerosol decreases. Due to the significant variation of the aerosol concentration during the puffing session as described above, there will be the problem of poor smoking taste.
  • an aerosol provision device and a heating control method for an aerosol provision device which may make the concentration of the aerosol released by the aerosol-generating article in each period during the puffing session close to each other.
  • an aerosol provision device comprising: a heating structure configured for heating an aerosol-generating article inserted into a device, wherein the heating structure comprises a first region and a second region; a first temperature sensor configured for detecting whether the temperature in the first region reaches a first preset temperature; a second temperature sensor configured for detecting whether the temperature in the second region reaches a second preset temperature; and a controller for controlling the heating operation of the heating structure.
  • the controller may be configured to control the heating operation of the heating structure based on the sensing result of the first temperature sensor, rather than the sensing result of the second temperature sensor, when the temperature in the first region reaches a first preset temperature, stopping heating the first region.
  • the controller may be configured to control the heating structure to continuously heat until the temperature of the first region reaches the first preset temperature.
  • the controller may be configured to control the heating operation of the heating structure based on the sensing result of the first temperature sensor instead of controlling the heating operation of the heating structure based on the sensing result of the second temperature sensor.
  • the controller may be configured to initiate heating of the first region when the temperature of the first region drops below the first preset temperature and to control the temperature of the first region at a first heating temperature, wherein the first heating temperature does not exceed the first preset temperature.
  • the controller may be configured to stop heating the first region after the second operating time reaches a preset duration.
  • the controller may be configured to control the heating operation of the heating structure based on the sensing result of the second temperature sensor instead of controlling the heating operation of the heating structure based on the sensing result of the first temperature sensor; the controller may control the temperature of the second region to be at a second heating temperature, wherein the second heating temperature does not exceed the second preset temperature.
  • the second heating temperature may be higher than the first heating temperature
  • the third operating time may begin after the end of the second operating time.
  • the third operating time partially may overlap with the second operating time.
  • the start time of the third operating time may be later than the start time of the second operating time. In embodiments of the or any of the above aerosol provision device, the third operating time may end simultaneously with the second operating time.
  • the first operating time and the second operating time may occur within the same single puffing.
  • the controller may control the heating operation of the heating structure by regulating the magnitude of the current applied to the heating structure.
  • the first region and the second region may be distributed along the length direction of the heating structure.
  • the first region and the second region may be adjacent and in contact with each other.
  • the heating structure may comprise an induction coil.
  • the induction coil may be configured to generate electromagnetic induction with the induction material provided in the aerosol-generating article, causing the induction material to heat up.
  • the first preset temperature may be the Curie temperature of the induction material arranged in the first region
  • the second preset temperature may be the Curie temperature of the induction material arranged in the second region.
  • the device may further comprise a containing chamber for accommodating the insertion of the aerosolgenerating article, and the induction coil may surround the containing chamber.
  • the induction coil may comprise a first coil and a second coil, the first coil and the second coil may be arranged along the length direction of the heating structure, the controller configured to control the first coil and the second coil separately.
  • the first coil surrounds the first region, and the first temperature sensor may be arranged on the first coil to sense whether the temperature of the first region has reached the first preset temperature.
  • the second coil surrounds the second region, and the second temperature sensor may be arranged on the second coil to sense whether the temperature of the second region has reached the second preset temperature.
  • the induction coil may comprise a first part corresponding to the first region and a second part corresponding to the second region
  • the controller may be configured to control the induction coil uniformly.
  • the first part surrounds the first region, and the first temperature sensor may be arranged on the first part to sense whether the temperature of the first region has reached the first preset temperature.
  • the second part surrounds the second region, and the second temperature sensor may be arranged on the second part to sense whether the temperature of the second region has reached the second preset temperature.
  • the aerosol provision device may comprise a heating structure.
  • the heating structure may comprise a first region and a second region.
  • the method comprises: detecting whether the temperature of the first region has reached a first preset temperature; detecting whether the temperature of the second region has reached a second preset temperature; during the first operating time, controlling the heating operation of the heating structure based on the temperature detection result of the first region instead of controlling the heating operation of the heating structure based on the temperature detection result of the second region; and when the temperature of the first region reaches the first preset temperature, stopping the heating of the first region.
  • the method may comprise, during the first operating time, controlling the heating structure to continuously heat until the temperature of the first region reaches the first preset temperature.
  • the method may comprise, during the second operating time that begins after the temperature of the first region reaches the first preset temperature and heating of the first region stops, controlling the heating operation of the heating structure based on the temperature detection result of the first region instead of controlling the heating operation of the heating structure based on the temperature detection result of the second region.
  • the temperature of the first region drops below the first preset temperature, initiating heating of the first region and maintaining the temperature of the first region at the first heating temperature, wherein the first heating temperature never exceeds the first preset temperature.
  • the method may comprise, when the second operating time reaches the preset duration, stopping heating the first region.
  • the method may comprise, during the third operating time, controlling the heating operation of the heating structure based on the temperature detection result of the second region instead of controlling the heating operation of the heating structure based on the temperature detection result of the first region; controlling the temperature of the second region to be at a second heating temperature, wherein the second heating temperature never exceeds the second preset temperature.
  • the second heating temperature may be higher than the first heating temperature.
  • the third operating time may begin after the end of the second operating time.
  • the start time of the third operating time may be later than the start time of the second operating time.
  • the third operating time may end simultaneously with the second operating time.
  • the first operating time and the second operating time may occur within the same puffing session.
  • the first operating time and the second operating time may occur within the same single puffing.
  • the method may comprise controlling the heating operation of the heating structure by regulating the magnitude of the current applied to the heating structure.
  • the first preset temperature may be the Curie temperature of the induction material inside the first region
  • the second preset temperature may be the Curie temperature of the induction material inside the second region
  • an aerosol provision device comprising a heating structure configured to heat an article comprising aerosol generating material received by the aerosol provision device, wherein the heating structure comprises a first region and a second region; a first temperature sensor configured to detect when the temperature in the first region reaches a first preset temperature; a second temperature sensor configured to detect when the temperature in the second region reaches a second preset temperature; and a controller configured to control the heating operation of the heating structure; wherein, in a firstoperating period, the controller is configured to control the heating operation of the heating structure in dependence on the sensing result of the first temperature sensor, instead of the sensing result of the second temperature sensor, so as to stop heating the first region when the temperature in the first region reaches the first preset temperature.
  • a method of heating control for an aerosol provision device comprising a heating structure having a first region and a second region
  • the method comprises: determining whether the temperature of the first region has reached a first preset temperature; determining whether the temperature of the second region has reached a second preset temperature; during a first operating period, controlling the heating operation of the heating structure in dependence on the determined temperature of the first region instead of the determined temperature of the second region; when the temperature of the first region reaches the first preset temperature, stopping the heating of the first region.
  • the temperature of the first region of the heating structure may be collected through the first temperature sensor and the temperature of the second region of the heating structure through the second temperature sensor.
  • the heating operation of the heating structure may be controlled based on the temperature of the first region, and the heating of the first region may be stopped when the temperature of the first region reaches the first preset temperature.
  • the temperature of the first region may be rapidly increased at the beginning of the puffing session, the aerosol concentration may be increased, and the puffing taste at the beginning of the puffing session may be improved.
  • the heating operation of the heating structure may be controlled based on the temperature of the second region. Moreover, when the temperature of the first region cools down to be lower than the first preset temperature, the heating of the first region may be restarted and the heating temperature may be controlled to be lower than the first preset temperature.
  • the aerosol-generating article may continuously output aerosol with a concentration close to that in the first operating time during the second operating time.
  • the heating operation of the heating structure may be controlled based on the temperature of the second region, and the heating temperature may be controlled to be lower than the second preset temperature.
  • Part or all of the third operating time occurs after the second operating time.
  • the first region may be heated at a temperature lower than the first preset temperature
  • the second region may be heated at a temperature lower than the second preset temperature.
  • the aerosol-generating article may continuously output aerosol with a concentration close to that in the second operating time.
  • the present disclosure heats the aerosol-generating article in different regions and at different times, so that the aerosol-generating article may continuously output aerosol with a close concentration during the entire puffing session, thereby improving the puffing taste.
  • Figure 1 is a cross-sectional view of an aerosol provision system
  • Figure 2 is a perspective view of an aerosol-generating article
  • Figure 3 is a cross-sectional view of the aerosol-generating article shown in Figure 2;
  • Figure 4 is a schematic structural diagram of an aerosol-generating article
  • Figure 5 is a flowchart of a heating control method for an aerosol provision device
  • Figure 6 is a partial structural schematic diagram of an aerosol provision system
  • Figure 7 is a temperature curve of the aerosol provision system shown in Figure 5 during the puffing session
  • Figure 8 is a current curve of the aerosol provision system shown in Figure 5 during the puffing session
  • Figure 9 is a partial structural schematic diagram of an aerosol provision system
  • Figure 10 is a temperature curve of the aerosol provision system shown in Figure 9 during the puffing session
  • Figure 11 is a current curve of the aerosol provision system shown in Figure 9 during the puffing session
  • Figure 12 is a partial structural schematic diagram of an aerosol provision system
  • Figure 13 is a temperature curve of the aerosol provision system shown in Figure 12 during the puffing session
  • Figure 14 is a current curve of the aerosol provision system shown in Figure 12 during the puffing session
  • Figure 15 is a partial structural schematic diagram of an aerosol provision system
  • Figure 16 is a temperature curve of the aerosol provision system shown in Figure 15 during the puffing session.
  • Figure 17 is a current curve of the aerosol provision system shown in Figure 15 during the puffing session.
  • 101 Housing; 102, Induction coil; 103, First coil; 104, Second coil; 105, First temperature sensor; 106, Second temperature sensor; 107, Battery assembly; 108, Controller; 109, Magnetic sensor; 110, Containing chamber; 111 , Insertion port; 112, Temperature sensor; 20, Aerosol-generating article;
  • Aerosol-forming substrate 202
  • Heating element 203
  • End element 204
  • Packaging material 205
  • Flow guiding section 206
  • Cooling section 207
  • 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 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. In some alternative embodiments, 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, ora gel.
  • the aerosol-modifying 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 aerosolgenerating 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.
  • the present disclosure relates to aerosol delivery systems (which may also be referred to as 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 / device and electronic aerosol delivery system / 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.
  • an aerosol provision device may comprise a housing 101, a heating structure, a first temperature sensor 105, a second temperature sensor 106, a battery assembly 107, and a controller 108.
  • the housing 101 may be provided with a containing chamber 110 for accommodating the insertion of an aerosol-generating article 20.
  • the heating structure may be configured to heat the aerosol-generating article 20 inserted into the containing chamber 110.
  • the heating structure has a first region and a second region, and the first region and the second region may be distributed along the length direction of the heating structure.
  • the first region may be adjacent to the second region, and the first region may be in contact with the second region or there may be a gap between them.
  • the first temperature sensor 105 may be arranged on the inner wall of the containing chamber 110 and may be located between the aerosol provision device 10 and the first region of the heating structure. The first temperature sensor 105 may be used to detect whether the temperature of the first region reaches a first preset temperature.
  • the second temperature sensor 106 may be arranged on the inner wall of the containing chamber 110 and may be located between the aerosol provision device 10 and the second region of the heating structure. The second temperature sensor 106 may be used to detect whether the temperature of the second region reaches a second preset temperature.
  • the controller 108 may be electrically connected to the battery assembly 107 and the heating structure and may be used to control the heating operation of the heating structure. Specifically, the controller 108 controls the heating operation of the heating structure by regulating the magnitude of the current applied to the heating structure.
  • the heating structure may comprise an induction coil 102.
  • the induction coil 102 surrounds the containing chamber 110, and the induction coil 102 may be configured to generate electromagnetic induction with the induction material provided in the aerosolgenerating article 20, causing the induction material to heat up.
  • the induction coil 102 may comprise a first coil 103 and a second coil 104.
  • the first coil 103 and the second coil 104 may be arranged along the length direction of the heating structure.
  • the first coil 103 surrounds the first region, and the first temperature sensor 105 may be arranged on the first coil 103 to sense whether the temperature of the first region has reached the first preset temperature.
  • the second coil 104 surrounds the second region, and the second temperature sensor 106 may be arranged on the second coil 104 to sense whether the temperature of the second region has reached the second preset temperature.
  • the controller 108 may be configured to control the first coil 103 and the second coil 104 separately.
  • the induction coil 102 may comprise a first part corresponding to the first region and a second part corresponding to the second region.
  • the first part surrounds the first region, and the first temperature sensor 105 may be arranged on the first part to sense whether the temperature of the first region has reached the first preset temperature.
  • the second part surrounds the second region, and the second temperature sensor 106 may be arranged on the second part to sense whether the temperature of the second region has reached the second preset temperature.
  • the controller 108 may be configured to control the induction coil 102 uniformly.
  • the aerosol-generating article 20 may comprise an aerosol-generating section and a packaging material 204.
  • the aerosol-generating section may comprise an aerosol-forming substrate 201 and a heating element 202.
  • the packaging material 204 covers the aerosolforming substrate 201 and the heating element 202.
  • the aerosol-forming substrate 201 forms an aerosol under heating conditions; the heating element 202 may comprise an induction material, and the induction material may generate heat in the electromagnetic field generated after the induction coil 102 is powered on.
  • the heating element 202 is located in the first region and the second region of the heating structure.
  • the first preset temperature may be the Curie temperature of the induction material located in the first region
  • the second preset temperature may be the Curie temperature of the induction material located in the second region.
  • the heating element 202 may be nested with the aerosolforming substrate 201, and the heating element 202 may be used to heat the aerosol-forming substrate 201.
  • the aerosol-generating section may further include an end element 203.
  • the end element 203 may be arranged upstream of the aerosol-forming substrate 201.
  • the heating element 202 may be nested with the aerosol-forming substrate 201, and the heating element 202 arranged in the aerosol-forming substrate 201 may be used to heat the aerosol-forming substrate 201.
  • the end element 203 may be used to receive the by-products after the aerosol-forming substrate 201 is heated. These by-products include shredded tobacco, tobacco oil, condensate, etc.
  • the aerosol-generating section may include an end element 203.
  • the end element 203 may be arranged upstream of the aerosol-forming substrate 201. Both the aerosol-forming substrate 201 and the end element 203 may be nested with the heating element 202.
  • the heating element 202 arranged in the end element 203 may be used to heat the air upstream of the aerosol-forming substrate 201
  • the heating element 202 arranged in the aerosol-forming substrate 201 may be used to heat the aerosol-forming substrate 201.
  • the multiple heating elements 202 may be arranged in the aerosol-forming substrate 201.
  • the multiple heating elements 202 may be arranged along the length direction of the aerosol-generating article 20, and the Curie temperatures of all the heating elements 202 may be not completely the same.
  • a part of the heating elements 202 arranged in the aerosol-forming substrate 201 corresponds to the first region, and another part of the heating elements 202 corresponds to the second region. Since the Curie temperatures of at least two heating elements 202 in the aerosol-forming substrate 201 are different, when the temperature of some heating elements 202 reaches their Curie temperatures and stops heating, other heating elements 202 may continue to generate heat.
  • the heating element 202 may comprise a circumferentially surrounding first part and a second part arranged inside the first part, and the first part and the second part may be connected to each other in the circumferential direction.
  • the first part of the heating element 202 surrounds the outer peripheral surface of the end element 203, and the second part may be inserted into the end element 203.
  • the heating element 202 is nested with the aerosolforming substrate 201
  • the first part of the heating element 202 surrounds the outer peripheral surface of the aerosol-forming substrate 201, and the second part may be inserted into the aerosol-forming substrate 201.
  • the cross-section of the heating element 202 may be in the shape of an "e" or a spiral shape.
  • the second part of the heating element 202 may be an induction material, and the first part may be a heat insulation material.
  • the second part may be used to heat the aerosol-forming substrate 201 , and the first part may be used to prevent the internal heat of the aerosol-forming substrate 201 from being conducted outward; or both the first part and the second part of the heating element 202 may be induction materials, and both the first part and the second part may be used to heat the aerosol-forming substrate 201 ; or both the first part and the second part of the heating element 202 may be induction materials, and the Curie temperatures of the first part and the second part may be different.
  • the induction materials include iron, cobalt, nickel, gadolinium, erbium, aluminum and their alloys, and the Curie temperature does not exceed 500°C.
  • the heat insulation material may include aerogel, paper, plastic or their composite materials, and the thermal conductivity may be less than 0.050 w/m.k.
  • the end element 203 may be made of a porous material, and the pore size is not greater than 5 nanometers.
  • the material of the end element 203 may be selected from at least one of polypropylene, cellulose acetate fiber and glass fiber.
  • the aerosol-generating article 20 may further comprise a flow guiding section 205, a cooling section 206 and a mouthpiece section 207.
  • the aerosol-generating section, the flow guiding section 205, the cooling section 206 and the mouthpiece section 207 may be arranged along the length direction of the aerosolgenerating article 20, and the packaging material 204 covers the outer sides of the aerosolgenerating section, the flow guiding section 205, the cooling section 206 and the mouthpiece section 207.
  • the airflow flows from the upstream to the downstream of the aerosol-generating article 20, passing through the aerosol- generating section, the flow guiding section 205, the cooling section 206 in sequence, and then flowing out from the mouthpiece section 207.
  • the aerosol-forming substrate 201 releases the effective components under heating conditions.
  • the airflow passes through the aerosolgenerating section, carries the effective components released by the aerosol-forming substrate 201 into the flow guiding section 205 and mixes them in the flow guiding section 205, then enters the cooling section 206 for cooling, and finally enters the user's mouth after being filtered by the mouthpiece section 207.
  • controller 108 controlling the heating operation of the heating structure comprises:
  • the controller 108 may be configured to control the heating operation of the heating structure based on the sensing result of the first temperature sensor 105, rather than based on the sensing result of the second temperature sensor 106.
  • the heating of the first region may be stopped.
  • the controller 108 may be configured to control the heating structure to continuously heat until the temperature of the first region reaches the first preset temperature.
  • the controller 108 may be configured to control the heating operation of the heating structure based on the sensing result of the first temperature sensor 105, rather than based on the sensing result of the second temperature sensor 106.
  • the controller 108 may be configured to start heating the first region when the temperature of the first region decreases and is lower than the first preset temperature, and control the temperature of the first region at the first heating temperature that does not exceed the first preset temperature.
  • controller 108 may be configured to stop heating the first region after the second operating time reaches the preset duration.
  • the controller 108 may be configured to control the heating operation of the heating structure based on the sensing result of the second temperature sensor 106, rather than based on the sensing result of the first temperature sensor 105; the controller 108 controls the temperature of the second region to be at the second heating temperature that does not exceed the second preset temperature.
  • the second heating temperature may be higher than the first heating temperature.
  • the operating time may be an operating period.
  • the operating period for example the first operating period may not be a preset time period and may be dependent on another attribute, for example a predetermined temperature being achieved.
  • the third operating time starts after the second operating time ends. In other embodiments, the third operating time at least partially overlaps with the second operating time. Exemplarily, the start time of the third operating time may be later than the start time of the second operating time, and it ends after the second operating time ends; or the start time of the third operating time may be later than the start time of the second operating time, and it ends simultaneously with the second operating time.
  • first operating time and second operating time may occur within the same puffing session.
  • first operating time and the second operating time may also occur within the same single puffing.
  • the aerosol provision device 10 may comprise a heating structure, and the heating structure may comprise a first region and a second region.
  • the heating control method for the aerosol provision device 10 comprises the following steps.
  • S105 During the first operating time, controlling the heating operation of the heating structure based on the temperature detection result of the first region, rather than based on the temperature detection result of the second region. If the temperature of the first region has not reached the first preset temperature, control the heating structure to continuously heat until the temperature of the first region reaches the first preset temperature.
  • S109 During the second operating time that begins after the temperature of the first region reaches the first preset temperature and the heating of the first region stops, controlling the heating operation of the heating structure based on the temperature detection result of the first region, rather than based on the temperature detection result of the second region. Moreover, when the temperature of the first region decreases and is lower than the first preset temperature, start heating the first region, and control the temperature of the first region at the first heating temperature that does not exceed the first preset temperature. If the second operating time has not reached the preset duration, continuously heat the first region until the heating duration of the first region reaches the preset duration.
  • the first operating time may be a first operating period.
  • the first operating time may be a first operating mode.
  • the second operating mode may be a second operating period or mode.
  • the third operating mode may be a third operating period or mode.
  • the controller controls the heating operation of the heating structure based on the output of the first temperature sensor only.
  • the controller may control the heating operation of the heating structure based on the output of the first temperature sensor only.
  • the controller may control the heating operation of the heating structure based on the output of the second temperature sensor only.
  • the detection result of the temperature sensor is an output of the temperature sensor.
  • the heating control method for the aerosol provision device 10 may further comprise: during the third operating time, control the heating operation of the heating structure based on the temperature detection result of the second region, rather than based on the temperature detection result of the first region; control the temperature of the second region to be at the second heating temperature that does not exceed the second preset temperature.
  • the second heating temperature may be higher than the first heating temperature.
  • the third operating time starts after the second operating time ends. In some embodiments, the third operating time at least partially overlaps with the second operating time. Exemplarily, the start time of the third operating time may be later than the start time of the second operating time, and it ends after the second operating time ends; or the start time of the third operating time may be later than the start time of the second operating time, and it ends simultaneously with the second operating time.
  • first operating time and second operating time may occur within the same puffing session.
  • first operating time and the second operating time may also occur within the same single puffing.
  • the controller 108 controlling the heating operation of the heating structure may be: controlling the heating operation of the heating structure by regulating the magnitude of the current applied to the heating structure.
  • the heating object of the heating structure may be the aerosol-generating article 20.
  • the aerosol-generating article 20 may be provided with an induction material.
  • the induction material is in the heating structure.
  • the first preset temperature may be the Curie temperature of the induction material in the first region
  • the second preset temperature may be the Curie temperature of the induction material in the second region.
  • the temperature of the first region of the heating structure may be collected by the first temperature sensor 105
  • the temperature of the second region of the heating structure may be collected by the second temperature sensor 106.
  • the heating operation of the heating structure may be controlled based on the temperature of the first region, and the heating of the first region may be stopped when the temperature of the first region reaches the first preset temperature.
  • the temperature of the first region may be rapidly increased at the beginning of the puffing session, the aerosol concentration may be increased, and the puffing taste at the beginning of the puffing session may be improved.
  • the heating operation of the heating structure may be controlled based on the temperature of the second region. Moreover, when the temperature of the first region cools down to be lower than the first preset temperature, the heating of the first region may be restarted and the heating temperature may be controlled to be lower than the first preset temperature.
  • the aerosol-generating article 20 may continuously output aerosol with a concentration close to that in the first operating time during the second operating time.
  • the heating operation of the heating structure may be controlled based on the temperature of the second region, and the heating temperature may be controlled to be lower than the second preset temperature.
  • Part or all of the third operating time occurs after the second operating time.
  • the first region may be heated at a temperature lower than the first preset temperature
  • the second region may be heated at a temperature lower than the second preset temperature.
  • the aerosol-generating article 20 may continuously output aerosol with a concentration close to that in the second operating time.
  • the heating structure is not limited to the above-mentioned first region and second region. Other regions may also be added on the basis of the first region and the second region. For example, the heating structure may also be provided with a third region, a fourth region, a fifth region, etc.
  • temperature sensors may be added adaptively. In some embodiments, the added temperature sensors may correspond one-to-one to the added regions and may be used to detect the temperature of the added regions specifically. In other embodiments, the added sensors and the added regions may not form a one-to-one correspondence relationship, and it is allowed that some added regions are not equipped with temperature sensors.
  • each region of the heating structure corresponds to one or more heating elements.
  • the controller controls the heating operation of the heating structure based on the temperature detection results fed back by one or more temperature sensors and in combination with the preset logic during each operating time, ensuring that there are heating elements generating heat at any time period of the puffing session, and the aerosol-forming substrate can volatilize gradually, so that the concentration of the aerosol released by the aerosol-forming substrate during the puffing session is relatively uniform.
  • the preset logic includes but is not limited to the following examples: restarting the heating after the temperature cools down to below the Curie temperature, stopping the heating after heating for the preset duration, and controlling the temperature of some heating regions to be lower than that of other heating regions.
  • the present disclosure heats the aerosol-generating article 20 in different regions and at different times, so that the aerosol-generating article 20 may continuously output aerosol with a close concentration during the entire puffing session, thereby improving the puffing taste.
  • Embodiment 1 The present application will be described in detail below through specific embodiments. Embodiment 1
  • FIG 6 shows the structure of an aerosol provision system.
  • the aerosol provision system comprises an aerosol provision device 10 and an aerosol-generating article 20.
  • the aerosol provision device 10 may comprise a housing 101, and a heating structure, a first temperature sensor 105, a second temperature sensor 106, a battery assembly 107 and a controller 108 arranged inside the housing 101.
  • the housing 101 may be provided with a containing chamber 110 for receiving the aerosol-generating article 20, and an insertion port 111 communicating with the containing chamber 110 may be provided at the top of the housing 101.
  • the heating structure may include a first region and a second region. The first region corresponds to the part of the containing chamber 110 close to the insertion port 111, and the second region corresponds to the part of the containing chamber 110 away from the insertion port 111.
  • the heating structure may also include a first coil 103 and a second coil 104.
  • the first coil 103 surrounds the first region
  • the second coil 104 surrounds the second region.
  • the first temperature sensor 105 may be arranged on the inner surface of the containing chamber 110 corresponding to the first region and may be used to detect the temperature of the first region.
  • the second temperature sensor 106 may be arranged on the inner surface of the containing chamber 110 corresponding to the second region and may be used to detect the temperature of the second region.
  • the controller 108 may be electrically connected to the battery assembly 107 and the heating structure and may be used to control the heating operation of the heating structure.
  • the aerosol-generating article 20 may comprise an aerosol-generating section and a packaging material 204.
  • the aerosol-generating section may comprise an end element 203, an aerosol-forming substrate 201, and a heating element 202.
  • the packaging material 204 covers the end element 203, the aerosol-forming substrate 201 , and the heating element 202.
  • the end element 203 may be located upstream of the aerosol-forming substrate 201 , and both the end element 203 and the aerosol-forming substrate 201 may be nested with the heating element 202.
  • the aerosol-forming substrate 201 may be sleeved with a plurality of heating elements 202.
  • the heating element 202 may include an induction material, and the induction material may generate heat in an electromagnetic field.
  • the Curie temperatures of at least two heating elements 202 among all the heating elements 202 may be different. When the temperature of some heating elements 202 reaches their Curie temperatures, they will no longer generate heat due to demagnetization, but other heating elements 202 may still continue to work because they have not reached their Curie temperatures, and the aerosolforming substrate 201 may be continuously heated to provide sufficient aerosol.
  • the Curie temperature of the heating element 202 may be 500°C or lower, optionally 450°C or lower, more optionally 400°C or lower, more optionally 350°C or lower, more optionally 300°C or lower, more optionally 250°C or lower, more optionally 200°C or lower, more optionally 150°C or lower, more optionally 100°C or lower, more optionally 50°C or lower.
  • the heating element 202 may be formed by winding a sheet material, and the cross- sectional shape of the heating element 202 may be spiral or in the shape of an "e".
  • the wall thickness of the heating element 202 may be 0.5 mm or smaller, optionally 0.2 mm or smaller, more optionally 0.1 mm or smaller, more optionally 0.08 mm or smaller, more optionally 0.06 mm or smaller, more optionally 0.04 mm or smaller, more optionally 0.02 mm or smaller.
  • the end element 203 may be made of a porous material, which may be any one or more of PP, cellulose acetate fiber, and glass fiber.
  • the diameter of the end element 203 may be less than 5 nanometers. Fresh air molecules with a diameter less than 5 nanometers can pass through, but other particles/aerosol molecules with a size exceeding 5 nanometers cannot pass through.
  • the controller 108 controls the battery assembly 107 to supply power to the heating structure.
  • the first coil 103 and the second coil 104 will generate a magnetic field. Due to the eddy current effect, the heating element 202 in the aerosol-generating article 20 will generate heat.
  • the aerosol-forming substrate 201 or the air around the heating element 202 may be heated by the heating element 202, and then aerosol may be generated when the user puffs the aerosol-generating article 20.
  • the heating element 202 When the temperature of the heating element 202 reaches its Curie temperature, the heating element 202 will be demagnetized and stop transferring heat to the aerosol-forming substrate 201. During this process, the first temperature sensor 105 will detect the temperature of the first region, and the second temperature sensor 106 will detect the temperature of the second region.
  • the end element 203 may be located within the magnetic field range generated by the second coil 104.
  • the heating element 202 nested with the end element 203 generates heat, thereby heating the fresh air when the fresh air passes through. Since the end element 203 is made of a porous material, while allowing fresh air to pass through, the end element 203 will prevent any aerogel containing tobacco particles or liquid molecules from passing through; the liquid molecules will be heated and pass through the end element 203. In this way, the containing chamber 110 on the aerosol provision device 10 will not be soiled by condensed water.
  • Figures 7 and 8 show the temperature and current change curves of the aerosol provision system shown in Figure 6 during a puffing session.
  • the controller 108 controls the battery assembly 107 to provide a current with a value of Ic to the first coil 103, causing the first coil 103 to generate a variable magnetic field.
  • the induction material in the aerosolgenerating article 20 generates eddy current heat due to electromagnetic induction. From 0 seconds to tT, the current value in the circuit may be Ic.
  • the controller 108 controls the battery assembly 107 to provide a current with a value of 11 to the first coil 103, so that the induction material in the aerosol-generating article 20 may be heated to the Curie temperature Tc, and the induction material stops working.
  • the controller 108 When the temperature of the first region detected by the first temperature sensor 105 is Tc, and at the same time the controller 108 receives that the temperature of the first region transmitted by the first temperature sensor 105 is Tc, the power supply to the first coil 103 is interrupted, and the induction material no longer generates heat. After the induction material cools for a period of time until t2, the controller 108 controls the battery assembly 107 to provide a current with a value of I2 to the first coil 103. The induction material senses the variable magnetic field, and continues to provide a current with a value of I2 to the first coil 103 until t3. The first coil 103 generates a changing magnetic field, and the induction material close to the first coil 103 starts to generate heat, and the temperature rises to T2.
  • a current with a value of I3 may be provided to the first coil 103, so that the temperature of the first region detected by the first temperature sensor 105 is T2.
  • the current provided to the first coil 103 may be increased to I4, so that the induced current quickly generates more heat to T4.
  • a current with a value of I5 may be provided to the first coil 103, so that the temperature of the first region detected by the first temperature sensor 105 may be maintained at T4.
  • a current with a value of I6 may be provided to the second coil 104.
  • the induction material in the aerosol-generating article 20 corresponding to the second coil 104 generates eddy current heat due to electromagnetic induction, and the temperature rises to T3.
  • a current with a value of I7 may be provided to the second coil 104, so that the temperature of the second region detected by the second temperature sensor 106 is maintained at T3.
  • the current flowing through the second coil 104 changes from I7 to I8, and the corresponding induction material generates more heat, so that the temperature of the second region detected by the second temperature sensor 106 reaches T5.
  • a current with a value of I9 may be provided to the second coil 104.
  • the induction material corresponding to the second coil 104 generates heat, so that the temperature of the second region detected by the second temperature sensor 106 may be maintained at T5.
  • FIG 9 shows the structure of an aerosol provision system.
  • the aerosol provision system comprises an aerosol provision device 10 and an aerosol-generating article 20.
  • the aerosol provision device 10 may comprise a housing 101, and a heating structure, a first temperature sensor 105, a second temperature sensor 106, a battery assembly 107 and a controller 108 arranged inside the housing 101.
  • the housing 101 may be provided with a containing chamber 110 for receiving the aerosol-generating article 20, and an insertion port 111 communicating with the containing chamber 110 may be provided at the top of the housing 101.
  • the heating structure may include a first region and a second region. The first region corresponds to the part of the containing chamber 110 close to the insertion port 111 , and the second region corresponds to the part of the containing chamber 110 away from the insertion port 111.
  • the heating structure may also include an induction coil 102, and the induction coil 102 surrounds the first region and the second region.
  • the first temperature sensor 105 may be arranged on the inner surface of the containing chamber 110 corresponding to the first region and may be used to detect the temperature of the first region.
  • the second temperature sensor 106 may be arranged on the inner surface of the containing chamber 110 corresponding to the second region and may be used to detect the temperature of the second region.
  • the controller 108 may be electrically connected to the battery assembly 107 and the heating structure and may be used to control the heating operation of the heating structure.
  • the aerosol-generating article 20 may comprise an aerosol-generating section and a packaging material 204.
  • the aerosol-generating section may comprise an end element 203, an aerosol-forming substrate 201, and a heating element 202.
  • the packaging material 204 covers the end element 203, the aerosol-forming substrate 201 , and the heating element 202.
  • the end element 203 may be located upstream of the aerosol-forming substrate 201 , and both the end element 203 and the aerosol-forming substrate 201 may be nested with the heating element 202.
  • the aerosol-forming substrate 201 may be sleeved with a plurality of heating elements 202.
  • the heating element 202 may include an induction material, and the induction material may generate heat in an electromagnetic field.
  • the Curie temperatures of at least two heating elements 202 among all the heating elements 202 may be different. When the temperature of some heating elements 202 reaches their Curie temperatures, they will no longer generate heat due to demagnetization, but other heating elements 202 may still continue to work because they have not reached their Curie temperatures, and the aerosolforming substrate 201 may be continuously heated to provide sufficient aerosol.
  • the Curie temperature of the heating element 202 may be 500°C or lower, optionally 450°C or lower, more optionally 400°C or lower, more optionally 350°C or lower, more optionally 300°C or lower, more optionally 250°C or lower, more optionally 200°C or lower, more optionally 150°C or lower, more optionally 100°C or lower, more optionally 50°C or lower.
  • the heating element 202 may be formed by winding a sheet material, and the cross- sectional shape of the heating element 202 may be spiral or in the shape of an "e".
  • the wall thickness of the heating element 202 may be 0.5 mm or smaller, optionally 0.2 mm or smaller, more optionally 0.1 mm or smaller, more optionally 0.08 mm or smaller, more optionally 0.06 mm or smaller, more optionally 0.04 mm or smaller, more optionally 0.02 mm or smaller.
  • the end element 203 may be made of a porous material, which may be any one or more of PP, cellulose acetate fiber, and glass fiber.
  • the diameter of the end element 203 may be less than 5 nanometers. Fresh air molecules with a diameter less than 5 nanometers can pass through, but other particles/aerosol molecules with a size exceeding 5 nanometers cannot pass through.
  • the controller 108 controls the battery assembly 107 to supply power to the heating structure.
  • the induction coil 102 will generate a magnetic field. Due to the eddy current effect, the heating element 202 in the aerosol-generating article 20 will generate heat.
  • the aerosol-forming substrate 201 or the air around the heating element 202 may be heated by the heating element 202, and then aerosol may be generated when the user puffs the aerosol-generating article 20.
  • the heating element 202 When the temperature of the heating element 202 reaches its Curie temperature, the heating element 202 will be demagnetized and stop transferring heat to the aerosol-forming substrate 201. During this process, the first temperature sensor 105 will detect the temperature of the first region, and the second temperature sensor 106 will detect the temperature of the second region.
  • the end element 203 may be located within the magnetic field range generated by the induction coil 102.
  • the heating element 202 nested with the end element 203 generates heat, thereby heating the fresh air when the fresh air passes through.
  • the end element 203 is made of a porous material, while allowing fresh air to pass through, the end element 203 will prevent any aerogel containing tobacco particles or liquid molecules from passing through; the liquid molecules will be heated and pass through the end element 203. In this way, the containing chamber 110 on the aerosol provision device
  • Figures 10 and 11 show the temperature and current change curves of the aerosol provision system shown in Figure 9 during a puffing session.
  • the controller 108 controls the battery assembly 107 to provide a current with a value of Ic to the induction coil 102 to make it generate a variable magnetic field.
  • the induction material in the aerosol-generating article 20 generates eddy current heat due to electromagnetic induction. From 0 seconds to tT, the current value in the induction coil 102 is Ic. To save energy consumption, from tT to t1 , a current with a value of
  • the induction coil 11 may be provided to the induction coil 102, so that the induction material in the aerosolgenerating article 20 may be heated to the Curie temperature Tc, and the induction material starts to stop working.
  • the controller 108 receives that the temperature of the first region transmitted by the first temperature sensor 105 is Tc
  • the power supply to the induction coil 102 may be interrupted, and the induction material no longer generates heat.
  • a current with a value of I2 may be provided to the induction coil 102.
  • the induction material senses the variable magnetic field, and continues to provide a current with a value of I2 to the first induction coil 102 until t3, so that the heating temperature rises to T2.
  • a current with a value of I3 may be provided to the induction coil 102, so that the temperature of the first region detected by the first temperature sensor 105 may be T2.
  • the second temperature sensor 106 starts to work, and at this time the temperature of the second region detected by the second temperature sensor 106 is T3.
  • the current provided to the induction coil 102 may be increased to I4, so that the induction material generates more heat until T4.
  • a current with a value of I5 may be continuously provided to the induction coil 102, so that the temperature of the second region detected by the second temperature sensor 106 is T4.
  • FIG 12 shows the structure of an aerosol provision system.
  • the aerosol provision system may comprise an aerosol provision device 10 and an aerosolgenerating article 20.
  • the aerosol provision device 10 may comprise a housing 101, and a heating structure, a temperature sensor 112, a battery assembly 107 and a controller 108 arranged inside the housing 101.
  • the housing 101 may be provided with a containing chamber 110 for receiving the aerosol-generating article 20, and an insertion port 111 communicating with the containing chamber 110 may be provided at the top of the housing 101.
  • the heating structure may include an induction coil 102, and the induction coil 102 surrounds the containing chamber 110.
  • the temperature sensor 112 may be arranged on the inner surface of the containing chamber 110 and may be used to detect the temperature of the inner surface of the containing chamber 110.
  • the controller 108 may be electrically connected to the battery assembly 107 and the heating structure and may be used to control the heating operation of the heating structure.
  • the aerosol-generating article 20 may comprise an aerosol-generating section and a packaging material 204.
  • the aerosol-generating section may comprise an end element 203, an aerosol-forming substrate 201, and a heating element 202.
  • the packaging material 204 covers the end element 203, the aerosol-forming substrate 201 , and the heating element 202.
  • the end element 203 may be located upstream of the aerosol-forming substrate 201 , and both the end element 203 and the aerosol-forming substrate 201 may be nested with the heating element 202.
  • the aerosol-forming substrate 201 may be sleeved with a plurality of heating elements 202.
  • the heating element 202 may include an induction material, and the induction material may generate heat in an electromagnetic field.
  • the Curie temperatures of at least two heating elements 202 among all the heating elements 202 may be different. When the temperature of some heating elements 202 reaches their Curie temperatures, they will no longer generate heat due to demagnetization, but other heating elements 202 may still continue to work because they have not reached their Curie temperatures, and the aerosolforming substrate 201 may be continuously heated to provide sufficient aerosol.
  • the Curie temperature of the heating element 202 may be 500°C or lower, optionally 450°C or lower, more optionally 400°C or lower, more optionally 350°C or lower, more optionally 300°C or lower, more optionally 250°C or lower, more optionally 200°C or lower, more optionally 150°C or lower, more optionally 100°C or lower, more optionally 50°C or lower.
  • the heating element 202 may be formed by winding a sheet material, and the cross- sectional shape of the heating element 202 is spiral or in the shape of an "e".
  • the wall thickness of the heating element 202 may be 0.5 mm or smaller, optionally 0.2 mm or smaller, more optionally 0.1 mm or smaller, more optionally 0.08 mm or smaller, more optionally 0.06 mm or smaller, more optionally 0.04 mm or smaller, more optionally 0.02 mm or smaller.
  • the end element 203 may be made of a porous material, which may be any one or more of PP, cellulose acetate fiber, and glass fiber.
  • the diameter of the end element 203 may be less than 5 nanometers. Fresh air molecules with a diameter less than 5 nanometers can pass through, but other particles/aerosol molecules with a size exceeding 5 nanometers cannot pass through.
  • the controller 108 controls the battery assembly 107 to supply power to the heating structure.
  • the induction coil 102 will generate a magnetic field. Due to the eddy current effect, the heating element 202 in the aerosol-generating article 20 will generate heat.
  • the aerosol-forming substrate 201 or the air around the heating element 202 may be heated by the heating element 202, and then aerosol may be generated when the user puffs the aerosol-generating article 20.
  • PEEK plastic
  • the temperature of the heating element 202 reaches its Curie temperature, the heating element 202 will be demagnetized and stop transferring heat to the aerosol-forming substrate 201. During this process, the temperature sensor will detect the temperature of the inner surface of the containing chamber 110.
  • the end element 203 may be located within the magnetic field range generated by the induction coil 102.
  • the heating element 202 nested with the end element 203 generates heat, thereby heating the fresh air when the fresh air passes through. Since the end element 203 is made of a porous material, while allowing fresh air to pass through, the end element 203 will prevent any aerogel containing tobacco particles or liquid molecules from passing through; the liquid molecules will be heated and pass through the end element 203. In this way, the containing chamber 110 on the aerosol provision device 10 will not be soiled by condensed water.
  • Figures 13 and 14 show the temperature and current change curves of the aerosol provision system shown in Figure 12 during a puffing session.
  • the controller 108 controls the battery assembly 107 to provide a current with a value of Ic to the induction coil 102 to make it generate a variable magnetic field.
  • the induction material in the aerosol-generating article 20 generates eddy current heat due to electromagnetic induction. From 0 seconds to tT, the current value in the induction coil 102 may be Ic. To save energy consumption, from t1' to t1, a current with a value of 11 may be provided to the induction coil 102, so that the induction material in the aerosol-generating article 20 may be heated to the Curie temperature Tc, and the induction material starts to stop working.
  • the power supply to the induction coil 102 may be interrupted, and the induction material no longer generates heat.
  • a current with a value of I2 may be provided to the induction coil 102.
  • the induction material senses the variable magnetic field, and continues to provide a current with a value of 12 to the induction coil 102 until t3, so that the heating temperature rises to T2.
  • a current with a value of I3 may be provided to the induction coil 102, so that the temperature of the inner surface of the containing chamber 110 detected by the temperature sensor 112 is T2.
  • FIG 15 shows the structure of an aerosol provision system.
  • the aerosol provision system may comprise an aerosol provision device 10 and an aerosolgenerating article 20.
  • the aerosol provision device 10 may comprise a housing 101, and a heating structure, a magnetic sensor 109, a battery assembly 107 and a controller 108 arranged inside the housing 101.
  • the housing 101 may be provided with a containing chamber 110 for receiving the aerosol-generating article 20, and an insertion port 111 communicating with the containing chamber 110 may be provided at the top of the housing 101.
  • the heating structure may include an induction coil 102, and the induction coil 102 surrounds the containing chamber 110.
  • the magnetic sensor 109 may be arranged within the magnetic field range of the induction coil 102 and may be used to detect the magnetic field change of the induction coil 102.
  • the controller 108 may be electrically connected to the battery assembly 107 and the heating structure and may be used to control the heating operation of the heating structure.
  • the aerosol-generating article 20 may include an aerosol-generating section and a packaging material 204.
  • the aerosol-generating section may include an end element 203, an aerosol-forming substrate 201 , and a heating element 202.
  • the packaging material 204 covers the end element 203, the aerosol-forming substrate 201 , and the heating element 202.
  • the end element 203 may be located upstream of the aerosol-forming substrate 201 , and both the end element 203 and the aerosol-forming substrate 201 may be nested with the heating element 202.
  • the aerosol-forming substrate 201 may be sleeved with a plurality of heating elements 202.
  • the heating element 202 may include an induction material, and the induction material may generate heat in an electromagnetic field.
  • the Curie temperatures of at least two heating elements 202 among all the heating elements 202 may be different. When the temperature of some heating elements 202 reaches their Curie temperatures, they will no longer generate heat due to demagnetization, but other heating elements 202 may still continue to work because they have not reached their Curie temperatures, and the aerosolforming substrate 201 may be continuously heated to provide sufficient aerosol.
  • the Curie temperature of the heating element 202 may be 500°C or lower, optionally 450°C or lower, more optionally 400°C or lower, more optionally 350°C or lower, more optionally 300°C or lower, more optionally 250°C or lower, more optionally 200°C or lower, more optionally 150°C or lower, more optionally 100°C or lower, more optionally 50°C or lower.
  • the heating element 202 may be formed by winding a sheet material, and the cross- sectional shape of the heating element 202 is spiral or in the shape of an "e".
  • the wall thickness of the heating element 202 may be 0.5 mm or smaller, optionally 0.2 mm or smaller, more optionally 0.1 mm or smaller, more optionally 0.08 mm or smaller, more optionally 0.06 mm or smaller, more optionally 0.04 mm or smaller, more optionally 0.02 mm or smaller.
  • the end element 203 may be made of a porous material, which may be any one or more of PP, cellulose acetate fiber, and glass fiber.
  • the diameter of the end element 203 may be less than 5 nanometers. Fresh air molecules with a diameter less than 5 nanometers can pass through, but other particles/aerosol molecules with a size exceeding 5 nanometers cannot pass through.
  • the controller 108 controls the battery assembly 107 to supply power to the heating structure.
  • the induction coil 102 will generate a magnetic field. Due to the eddy current effect, the heating element 202 in the aerosol-generating article 20 will generate heat.
  • the aerosol-forming substrate 201 or the air around the heating element 202 may be heated by the heating element 202, and then aerosol may be generated when the user puffs the aerosol-generating article 20.
  • the heating element 202 When the temperature of the heating element 202 reaches its Curie temperature, the heating element 202 will be demagnetized and stop transferring heat to the aerosol-forming substrate 201. During this process, the magnetic sensor 109 will detect the magnetic field change of the induction coil 102.
  • the end element 203 may be located within the magnetic field range generated by the induction coil 102.
  • the heating element 202 nested with the end element 203 generates heat, thereby heating the fresh air when the fresh air passes through. Since the end element 203 is made of a porous material, while allowing fresh air to pass through, the end element 203 will prevent any aerogel containing tobacco particles or liquid molecules from passing through; the liquid molecules will be heated and pass through the end element 203. In this way, the containing chamber 110 on the aerosol provision device 10 will not be soiled by condensed water.
  • Figures 16 and 17 show the temperature and current change curves of the aerosol provision system shown in Figure 15 during a puffing session.
  • the controller 108 controls the battery assembly 107 to provide a current with a value of Ic to the induction coil 102 to make it generate a variable magnetic field.
  • the induction material in the aerosol-generating article 20 generates eddy current heat due to electromagnetic induction. From 0 seconds to t1', the current value in the induction coil 102 may be Ic. To save energy consumption, from tT to t1, a current with a value of 11 may be provided to the induction coil 102, so that the induction material in the aerosol-generating article 20 may be heated to the Curie temperature Tc, and the induction material starts to stop working.
  • the power supply to the induction coil 102 may be interrupted, and the induction material no longer generates heat.
  • a current with a value of I2 may be provided to the induction coil 102.
  • the induction material senses the variable magnetic field, and continues to provide a current with a value of I2 to the induction coil 102 until t3, so that the heating temperature rises to T2.
  • a current with a value of I3 may be provided to the induction coil 102, so that the temperature of the heating structure is T2.
  • the current provided to the induction coil 102 may be increased to I4, so that the induction material generates more heat until T4.
  • a current with a value of I5 may be continuously provided to the induction coil 102, so that the temperature of the heating structure is T3.
  • 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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Abstract

L'invention concerne un dispositif de fourniture d'aérosol et son procédé de commande de chauffage. Le dispositif de fourniture d'aérosol comprend : une structure de chauffage conçue pour chauffer un article de génération d'aérosol inséré dans le dispositif, et la structure de chauffage a une première région et une seconde région ; un premier capteur de température conçu pour détecter si la température de la première région atteint une première température prédéfinie ; un second capteur de température conçu pour détecter si la température de la seconde région atteint une seconde température prédéfinie ; et un dispositif de commande conçu pour commander l'opération de chauffage de la structure de chauffage. Pendant le premier temps de fonctionnement, le dispositif de commande peut être conçu pour commander l'opération de chauffage de la structure de chauffage sur la base du résultat de détection du premier capteur de température, et lorsque la température de la première région atteint la première température prédéfinie, arrêter le chauffage de la première région.
PCT/EP2025/061778 2024-04-30 2025-04-29 Dispositif de fourniture d'aérosol et procédé de commande de chauffage Pending WO2025229032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410543913.1A CN120859223A (zh) 2024-04-30 2024-04-30 气溶胶供应装置及其加热控制方法
CN2024105439131 2024-04-30

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WO2025229032A1 true WO2025229032A1 (fr) 2025-11-06

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CN (1) CN120859223A (fr)
WO (1) WO2025229032A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180325179A1 (en) * 2017-05-10 2018-11-15 Shenzhen First Union Technology Co., Ltd. Electronic cigarette of electromagnetic induction heating capable of calibrating temperature
WO2022079050A1 (fr) * 2020-10-16 2022-04-21 Nicoventures Trading Limited Système de chauffage de dispositif de fourniture d'aérosol
US20220183377A1 (en) * 2019-03-11 2022-06-16 Nicoventures Trading Limited Apparatus for aerosol generating device
EP3760063B1 (fr) * 2019-07-04 2022-12-14 Philip Morris Products S.A. Procédé de fonctionnement d'un système de génération d'aérosol chauffé par induction
WO2023285486A1 (fr) * 2021-07-12 2023-01-19 Philip Morris Products S.A. Système de génération d'aérosol avec une pluralité de modes de fonctionnement
US20230055109A1 (en) * 2020-09-16 2023-02-23 Kt&G Corporation Aerosol generating device and aerosol generating system
WO2023194232A1 (fr) * 2022-04-06 2023-10-12 Philip Morris Products S.A. Dispositif et système de génération d'aérosol et procédé de commande associé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180325179A1 (en) * 2017-05-10 2018-11-15 Shenzhen First Union Technology Co., Ltd. Electronic cigarette of electromagnetic induction heating capable of calibrating temperature
US20220183377A1 (en) * 2019-03-11 2022-06-16 Nicoventures Trading Limited Apparatus for aerosol generating device
EP3760063B1 (fr) * 2019-07-04 2022-12-14 Philip Morris Products S.A. Procédé de fonctionnement d'un système de génération d'aérosol chauffé par induction
US20230055109A1 (en) * 2020-09-16 2023-02-23 Kt&G Corporation Aerosol generating device and aerosol generating system
WO2022079050A1 (fr) * 2020-10-16 2022-04-21 Nicoventures Trading Limited Système de chauffage de dispositif de fourniture d'aérosol
WO2023285486A1 (fr) * 2021-07-12 2023-01-19 Philip Morris Products S.A. Système de génération d'aérosol avec une pluralité de modes de fonctionnement
WO2023194232A1 (fr) * 2022-04-06 2023-10-12 Philip Morris Products S.A. Dispositif et système de génération d'aérosol et procédé de commande associé

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