Aerosol generation article and aerosol provision system

Abstract

There is provided an aerosol generation article (10) and an aerosol provision system. The aerosol generation article (10) comprises: an aerosol generating substrate (101) that forms an aerosol under a heating condition, an end component (102) arranged upstream of the aerosol generating substrate (101) and made of an insulating material and having an airflow channel, with the aerosol generating substrate (101) is located on the outlet side of the end component (102), and a packaging material (103) covering the aerosol generating substrate (101) and the end component (102) externally. The aerosol generation article of the present disclosure has the effects of heat insulation and air permeability.

Description

[0001] AEROSOL GENERATION ARTICLE AND AEROSOL PROVISION SYSTEM

[0002] Technical Field

[0003] The present application relates to the field of aerosol provision technology, and particularly relates to an aerosol generation article and an aerosol provision system.

[0004] Background

[0005] An aerosol provision system comprises an aerosol provision device and an aerosol generation article (such as a tobacco article). By inserting the aerosol generation article into the heating cavity of the aerosol provision device and heating the aerosol generation article through the aerosol provision device, an aerosol can be obtained. This heat-not-burn technology enables the aerosol generation article to release active ingredients during the carbonization stage before combustion, minimizing the generation of tar and harmful substances as much as possible.

[0006] The typical design of an aerosol generation article is to use a packaging material to enclose an aerosol generating substrate. The packaging material is generally wound into a cylindrical shape, with openings at both ends for air ventilation.

[0007] Summary

[0008] In accordance with an aspect, there is provided an aerosol generation article. The article comprises: an aerosol generating substrate that forms an aerosol under a heating condition, an end component arranged upstream of the aerosol generating substrate and made of an insulating material and having an airflow channel, and a packaging material covering the aerosol generating substrate and the end component externally. The aerosol generating substrate is located on the outlet side of the end component.

[0009] Optionally, the thermal conductivity of the insulating material is less than 0.040

[0010] W / (m • K).

[0011] Optionally, the thermal conductivity of the insulating material is less than 0.030

[0012] W / (m • K).

[0013] Optionally, the thermal conductivity of the insulating material is less than 0.020

[0014] W / (m • K).

[0015] Optionally, the thermal conductivity of the insulating material is less than 0.010

[0016] W / (m • K).

[0017] Optionally, the thermal insulation material comprises aerogel.

[0018] Optionally, the end component further comprises a heating element, and the heating element is arranged in the end component. Optionally, the end component has an air inlet hole, and the air inlet hole is located at the end of the end component opposite to the aerosol generating substrate.

[0019] Optionally, the end component has an air inlet hole, and the air inlet hole is located on the peripheral surface of the end component.

[0020] Optionally, an area on the packaging material corresponding to the end component has at least one hole penetrating through the packaging material, and the air inlet hole of the end component is in communication with the hole of the packaging material.

[0021] Optionally, multiple holes are arranged circumferentially along the packaging material.

[0022] Optionally, the aerosol generation article further comprises an end cap, and the end cap is located at the end of the end component away from the aerosol generating substrate and seals the end.

[0023] Optionally, the end cap has an insertion hole, and the insertion hole is configured to transitionally or interference-fittingly engage with a piercing component when the piercing component passes through the insertion hole into the end component. The end component has a through-hole along its length direction, and the through-hole is in communication with the insertion hole, allowing the piercing component to penetrate the aerosol generating substrate through the through-hole.

[0024] Optionally, the through-hole is coaxially arranged with the insertion hole, and the diameter of the through-hole is larger than the diameter of the piercing component. When the piercing component is inserted into the aerosol generation article, there is a gap between the piercing component and the wall of the through-hole.

[0025] Optionally, the end component further comprises a liner. The liner is arranged within the through-hole of the end component. The liner has a hollow channel for insertion of the piercing component.

[0026] Optionally, the liner is a rigid hollow tubular component, and the end cap is made of deformable material.

[0027] Optionally, the insulating material is formed into the end component through winding and / or folding.

[0028] Optionally, the insulating material comprises a porous structure or an insulating sheet.

[0029] Optionally, the insulating material is an insulating sheet. The insulating sheet forms multiple insulating sleeves arranged concentrically with an inner and outer sleeve structure. A radial gap is provided between adjacent insulating sleeves. The radial gap forms at least part of the airflow channel.

[0030] Optionally, at least one axial end of the insulating sleeve has a flanging, and there is an axial gap between the flangings of adjacent insulating sleeves. The axial gap communicates with the radial gap to form at least part of the airflow channel. Optionally, the insulating material is an insulating sheet, and the insulating sheet forms a spiral structure through spiral winding. An axial gap is arranged between radially adjacent layers of the spiral structure. The gap forms the airflow channel.

[0031] Optionally, the insulating material is an insulating sheet, and the insulating sheet is a pleated configuration. The pleated configuration comprises an alternating first pleated surface and a second pleated surface. A groove is formed between adjacent first pleated surface and second pleated surface, and the groove serves as at least part of the airflow channel.

[0032] Optionally, the aerosol generating substrate further comprises at least one electromagnetic induction heating element, and the electromagnetic induction heating element is configured to heat the aerosol generating substrate.

[0033] Optionally, one end of the electromagnetic induction heating element is integrated with the end component, while the other end enters the aerosol generating substrate.

[0034] Optionally, the electromagnetic induction heating element comprises a metal element.

[0035] In accordance with an aspect, there is provided an aerosol provision system comprising an aerosol provision device and an aerosol generation article. The aerosol provision device may comprise a housing with a cavity for accommodating the aerosol generation article.

[0036] In accordance with an aspect, there is provided an article for an aerosol generating device comprising: aerosol generating material; an upstream end and a downstream end, wherein air is configured to be drawn in a direction towards the downstream end from the upstream end; an end component, arranged upstream of the aerosol generating material, the end component comprising an insulating material and having an airflow channel, the aerosol generating material being located downstream of the end component; and a packaging material wrapped around the aerosol generating material and the end component

[0037] One or more of the above have at least one or more of the following beneficial effects: In embodiments, an end component may be provided upstream of the aerosol generating substrate, and then a packaging material is used to cover the aerosol generating substrate and the end component. The end component is provided with an airflow channel that is smaller than the openings at the ends of the packaging material, and the openings at the ends of the packaging material are partially shielded by the end component. This achieves the prevention of the heat inside the aerosol generation article from dissipating through the openings at the ends of the packaging material without blocking the air ventilation. Since the end component is made of a thermal insulation material, it can further prevent the heat from being conducted outside the aerosol generation article through the end component. The aerosol generation article of the present disclosure has the effects of heat insulation and air permeability. In embodiments, the end component can receive substances such as tar and tobacco debris generated after the aerosol generating substrate is heated, reducing the risk of these substances falling into the heating cavity and contaminating the heating cavity. Moreover, by arranging the end component upstream of the aerosol generating substrate, the air will be preheated in the end component before entering the aerosol generating substrate, which can improve the user's puffing taste.

[0038] Additional aspects and advantages will be partially described in the following description.

[0039] Brief Description of the Drawings

[0040] Referring to the accompanying drawings, the disclosure of the present application will become more understandable. Those skilled in the art can easily understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. Moreover, similar numbers in the figures are used to represent similar components, wherein:

[0041] Figure 1 is a schematic cross-sectional structure diagram of an aerosol generation article provided;

[0042] Figure 2 is a schematic cross-sectional structure diagram of another aerosol generation article;

[0043] Figure 3 is a schematic cross-sectional structure diagram of yet another aerosol generation article;

[0044] Figure 4 is a three-dimensional view of the end component of the aerosol generation article shown in Figure 3;

[0045] Figure 5 is a top view of the end component of the aerosol generation article shown in Figure 3;

[0046] Figure 6 is a schematic structural diagram of another aerosol generation article ;

[0047] Figure 7 is a schematic cross-sectional structure diagram of the aerosol generation article shown in Figure 6;

[0048] Figure 8 is a schematic cross-sectional structure diagram of yet another aerosol generation article;

[0049] Figure 9 is a schematic diagram of a partial structure of the aerosol generation article shown in Figure 8;

[0050] Figure 10 is a schematic cross-sectional structure diagram of an aerosol provision system; and

[0051] Figure 11 is a schematic cross-sectional structure diagram of another aerosol provision system. Description of reference numerals in the drawings:

[0052] 10 Aerosol generation article, 101 Aerosol generating substrate, 102 End component, 103 Packaging material, 104 Hollow channel, 105 Air inlet hole, 106 Hole, 107 First pleated surface, 108 Second pleated surface, 109 Groove, 110 End cap, 111 Through-hole, 112 Insertion hole, 113 Liner, 114 Electromagnetic induction heating element, 20 Aerosol provision device, 201 Housing, 202 Heating element, 203 Coil, 204 Energy supply module, 205 Piercing component.

[0053] Detailed Description

[0054] The following describes some embodiments with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present application and are not intended to limit the scope of protection of the present application.

[0055] As used herein, 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 not comprise nicotine.

[0056] According to the present disclosure, 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.

[0057] In some embodiments, 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.

[0058] In some embodiments, 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.

[0059] According to the present disclosure, 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.

[0060] In some embodiments, the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.

[0061] In some embodiments, 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.

[0062] In some embodiments, 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.

[0063] In some embodiments, 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. In some embodiments, 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.

[0064] Typically, 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.

[0065] In some embodiments, 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.

[0066] In some embodiments, 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. In some embodiments, 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. In some embodiments, 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.

[0067] In some embodiments, 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.

[0068] In some embodiments, 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.

[0069] In some embodiments, the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised. As appropriate, 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.

[0070] In some embodiments, 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.

[0071] In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.

[0072] As noted herein, the active substance may comprise one or more constituents, derivatives or extracts of cannabis, such as one or more cannabinoids or terpenes.

[0073] As noted herein, the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof. As used herein, the term "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. Alternatively, 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 balm, lemon basil, chive, carvi, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab or any combination thereof. 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.

[0074] In some embodiments, 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.

[0075] 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 rooibos and fennel.

[0076] In some embodiments, the substance to be delivered comprises a flavour. As used herein, the terms "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. They 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, geranium, khat, naswar, betel, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, piment, ginger, coriander, coffee, hemp, a mint oil from any species of the genus Mentha, eucalyptus, star anise, cocoa, lemongrass, rooibos, flax, ginkgo biloba, hazel, hibiscus, laurel, mate, orange skin, rose, tea such as green tea or black tea, thyme, juniper, elderflower, basil, bay leaves, cumin, oregano, paprika, rosemary, saffron, lemon peel, mint, beefsteak plant, curcuma, cilantro, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm, lemon basil, chive, carvi, verbena, tarragon, limonene, thymol, camphene), flavour enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and / or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, botanicals, or breath freshening agents. They may be imitation, synthetic or natural ingredients or blends thereof. They may be in any suitable form, for example, liquid such as an oil, solid such as a powder, or gas.

[0077] In some embodiments, the flavour comprises menthol, spearmint and / or peppermint. In some embodiments, the flavour comprises flavour components of cucumber, blueberry, citrus fruits and / or redberry. In some embodiments, the flavour comprises eugenol. In some embodiments, the flavour comprises flavour components extracted from tobacco. In some embodiments, the flavour comprises flavour components extracted from cannabis.

[0078] In some embodiments, 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.

[0079] 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.

[0080] 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.

[0081] The aerosol-former material may comprise one or more constituents capable of forming an aerosol. In some embodiments, 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.

[0082] The one or more other functional materials may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and / or antioxidants.

[0083] 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. In some embodiments, the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or either side of the material.

[0084] 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.

[0085] 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.

[0086] 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 aerosol-modifying agent may be in powder, thread or granule form. The aerosol-modifying agent may be free from filtration material.

[0087] An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material. In some embodiments, 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. In some embodiments, the aerosol generator is configured to cause an aerosol to be generated from the aerosolgenerating material without heating. For example, the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.

[0088] The present disclosure relates to aerosol delivery systems (which may also be referred to as vapour delivery systems) such as nebulisers or e-cigarettes. Throughout the following description the term "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. Furthermore, and as is common in the technical field, the terms "aerosol" and "vapour", and related terms such as "vaporise", "volatilise" and "aerosolise", may generally be used interchangeably.

[0089] Aerosol delivery systems (e-cigarettes) often, though not always, comprise a modular assembly comprising a reusable device part and a replaceable (disposable / consumable) cartridge part. Often, 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. It will be appreciated these different parts may comprise further elements depending on functionality. For example, the reusable device part will often comprise a user interface for receiving user input and displaying operating status characteristics, and 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. When the aerosol-generating material in a cartridge is exhausted, or the user wishes to switch to a different cartridge having a different aerosol-generating material, 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.

[0090] It is common for electronic cigarettes to have a generally elongate shape. For the sake of providing a concrete example, certain embodiments of the disclosure will be taken to comprise this kind of generally elongate two-part system employing disposable cartridges. However, it will be appreciated that the underlying principles described herein may equally be adopted for different configurations, for example single-part systems or modular systems comprising more than two parts, refillable devices and single-use disposables, as well as other overall shapes, for example based on so-called box-mod high performance devices that typically have a boxier shape. More generally, it will be appreciated 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.

[0091] This embodiment provides an aerosol generation article. The aerosol generating article is an article for an aerosol provision system. In embodiments at least a portion of the article is received in an aerosol provision device. As shown in Figure 1 , the aerosol generation article 10 comprises an aerosol generating substrate 101 , an end component 102, and a packaging material 103. The aerosol generating substrate 101 is capable of forming an aerosol under heating conditions. The end component 102 is arranged upstream of the aerosol generating substrate 101.

[0092] The aerosol generating substrate comprises aerosol generating material.

[0093] By arranging the end component upstream of the aerosol generating substrate, the air can be preheated in the end component before entering the aerosol generating substrate, which can improve the user's puffing taste. The end component can receive substances such as tar and tobacco debris generated after the aerosol generating substrate is heated, reducing the risk of these substances falling into the heating cavity and contaminating the heating cavity.

[0094] The end component 102 is made of a thermal insulation material and has an airflow channel, and the aerosol generating substrate 101 is located on the outlet side of the end component 102. The packaging material 103 covers the aerosol generating substrate 101 and the end component 102 externally.

[0095] The packaging material 103 is wrapped around the aerosol generating substrate 101 and the end component 102. Since the end component is made of a thermal insulation material, it can help prevent the heat from being conducted outside the aerosol generation article through the end component. The aerosol generation article may have the effects of assisting with heat insulation and air permeability.

[0096] The packaging material may be a wrapping material. The packaging material may be in embodiments described as a wrapper or a wrap.

[0097] In embodiments, the airflow channel has a diameter which is smaller than an end opening of the packaging material 103, and the end opening of the packaging material 103 is partially shielded by the end component 102. This achieves the prevention of the heat inside the aerosol generation article 10 from dissipating through the end opening of the packaging material 103 without blocking the air ventilation. The thermal conductivity of the thermal insulation material is less than 0.040 W / (m • K). Optionally, the thermal conductivity of the thermal insulation material can be configured to be less than 0.030 W / (m • K), less than 0.020 W / (m • K), or less than 0.010 W / (m • K). Since the end component 102 is made of a thermal insulation material with a low thermal conductivity, it can further prevent the heat from being conducted outside the aerosol generation article 10.

[0098] The aerosol generating substrate 101 will release active ingredients when heated. The user draws air into the aerosol generating substrate 101 through a puffing action, which mixes with the active ingredients released by the aerosol generating substrate 101 before entering the oral cavity of the user. In order to allow air to enter the aerosol generating substrate 101 , an air inlet hole 105 that is in fluid communication with the aerosol generating substrate 101 is provided on the aerosol generation article 10. In this embodiment, the air inlet hole 105 is arranged upstream of the aerosol generating substrate 101. In embodiments, the air inlet hole

[0099] 105 is provided on the end component 102.

[0100] As used herein, the terms “upstream” and “downstream” will be understood in relation to the flow of air drawn through the article 10. The terms are relative to each other and other features. “Upstream” may mean further away from the end of the article 10 which during use is the closest to or in contact with the mouth of the user. Similarly, the terms “upstream end” and “downstream end” will be understood in relation to the direction of flow of air drawn through the article 10.

[0101] In one possible implementation, the air inlet hole 105 is located at the end of the end component 102 away from the aerosol generating substrate 101. As shown in Figures 1 , 2, and 3, air can enter from the bottom surface of the distal end of the aerosol generation article 10. The distal end of the aerosol generation article 10 is the furthest away from the away from the mouth of the user during use.

[0102] In another possible implementation, the air inlet hole 105 is located on the peripheral surface of the end component 102. As shown in Figures 6 to 8, air can enter from the peripheral wall of the distal end of the aerosol generation article 10. Wherein, when the peripheral surface of the end component 102, where the air inlet hole 105 is provided, is covered by the packaging material 103, an area of the packaging material 103 corresponding to the air inlet hole 105 is further provided with a hole 106 penetrating through the packaging material 103. The air inlet hole 105 of the end component 102 communicates with the hole

[0103] 106 of the packaging material 103, and external air can enter the aerosol generating substrate 101 through the hole 106 of the packaging material 103 and through the air inlet hole 105 of the end component 102. In embodiments, one or more holes are provided on the packaging material 103. When there are multiple holes 106 provided through the packaging material 103, these are arranged circumferentially along the packaging material 103. Optionally, the holes 106 on the packaging material 103 correspond one-to-one with and are in communication with the air inlet hole 105 of the end component 102.

[0104] In this embodiment, the thermal insulation material is a porous structure or an insulating sheet. When the thermal insulation material is a porous structure, the holes on the thermal insulation material form the airflow channel. When the thermal insulation material is an insulating sheet, the thermal insulation material forms the end component 102 by winding and / or folding. The thermal insulation material is wound or folded into shape.

[0105] In one possible implementation, the insulating sheet forms multiple insulating sleeves arranged concentrically with an inner and outer sleeve structure. The length direction of the insulating sleeves is consistent with the length direction of the aerosol generation article 10. There is a radial gap between two adjacent insulating sleeves, and the radial gap forms at least part of the airflow channel. Optionally, at least one axial end of the insulating sleeve has a flanging, and there is an axial gap between the flangings of adjacent insulating sleeves. The axial gap communicates with the radial gap to form at least part of the airflow channel.

[0106] In another possible implementation, the insulating sheet is spirally wound to form a spiral structure. There is an axially penetrating gap between two radially adjacent layers of the spiral structure, and these gaps form the airflow channel. Optionally, grooves can also be provided on the insulating sheet. When the insulating sheet is wound into a spiral structure, if two radially adjacent layers are in close contact, these grooves can form the axially extending gaps.

[0107] In another possible implementation, the insulating sheet has a pleated configuration. The pleated configuration comprises alternating first pleated surfaces 107 and second pleated surfaces 108. A groove 109 is formed between adjacent first pleated surfaces 107 and second pleated surfaces 108. The groove 109 serves as at least part of the airflow channel. As shown in Figures 4 and 5, the insulating sheet with a pleated configuration is wound into a spiral structure. Even if two radially adjacent layers of the spiral structure are in close contact, the groove 109 between the first pleated surface 107 and the second pleated surface 108 can still allow air to pass through. Moreover, the structure of the pleated configuration plus spiral winding in Figure 4 has good supporting strength, and the aerosol generation article 10 is not easy to break or bend when inserted into the aerosol provision device 20.

[0108] The aerosol generation article 10 may further comprise an end cap 110. The end cap 110 is located at the end of the end component 102 away from the aerosol generating substrate 101 and seals that end. The air inlet hole 105 is provided on the peripheral surface of the end component 102. Referring to Figures 6 to 8, the end cap 110 has an insertion hole 112. The end component 102 is provided with a through-hole 111 along its length. The through-hole 111 is in fluid communication with the insertion hole 112. The through-hole 111 is coaxially arranged with the insertion hole 112. When the aerosol generation article 10 is received by and / or into the aerosol provision device 20, a piercing component 205 of the aerosol provision device 20 sequentially passes through the insertion hole 112 on the end cap 110 and through the through-hole 111 of the end component 102 before entering the aerosol generating substrate 101. The end cap 110 is made of a deformable material. When the piercing component 205 is inserted into the aerosol generation article 10, a transitional fit or an interference fit is formed between the piercing component 205 and the insertion hole 112.

[0109] In this embodiment, the thermal insulation material is a porous material. It is desirable to prevent the piercing component from directly contacting the thermal insulation material as this generates an unpleasant odor and affects the puffing taste. In one possible implementation, as shown in Figure 7, the diameter of the through-hole 111 is set to be larger than the diameter of the piercing component 205. When the piercing component 205 is inserted into the aerosol generation article 10, there is a gap between the piercing component 205 and the wall of the through-hole 111 such that the piercing component 205 does not directly contact the thermal insulation material. In another possible implementation manner, as shown in Figures 8 and 9, a liner 113 is provided in the through-hole 111 of the end component 102. The liner 113 has a hollow channel 104 for receiving the piercing component 205. The piercing component 205 is received into the hollow channel 104 of the liner 113, and the liner 113 serves to isolate the piercing component 205 from the thermal insulation material. In embodiments, the liner 113 is a rigid hollow tubular component. As such component has a good structural stability, the liner 113 will not be extruded and deformed during the insertion process of the piercing component 205.

[0110] In one possible implementation, the end component 102 further comprises a heating element. The heating element is arranged inside the end component 102. During the process of heating the aerosol generation article 10, the heating element generates heat, thereby preheating the air entering the end component 102 and improving the user's puffing taste. The heating element is made of an electromagnetic induction material and can generate heat in an electromagnetic field. The electromagnetic induction material may be, for example, iron, cobalt, nickel, gadolinium, erbium or their alloys.

[0111] In one possible implementation, at least one electromagnetic induction heating element 114 is further provided in the aerosol generating substrate 101. The electromagnetic induction heating element 114 is configured to heat the aerosol generating substrate 101.

[0112] In order to facilitate the manufacture of the aerosol generation article, the electromagnetic induction heating element 114 may be integrated with the end component 102. As shown in Figure 2, one end of the electromagnetic induction heating element 114 is integrated with the end component 102. The other end of the electromagnetic induction heating element 114 is received into the aerosol generating substrate 101. When the aerosol generation article 10 is in an electromagnetic field, the electromagnetic induction heating element 114 generates heat and can heat the aerosol generating substrate 101. Further, a part of the electromagnetic induction heating element 114 can also be arranged in the end component 102. When the aerosol generation article 10 is in an electromagnetic field, the part of the electromagnetic induction heating element 114 located in the aerosol generating substrate 101 can heat the aerosol generating substrate 101 , and the part of the electromagnetic induction heating element 114 located in the end component 102 can preheat the air that is about to enter the aerosol generating substrate 101.

[0113] Since the electromagnetic induction heating element can heat the aerosol generating substrate from the inside, when used in conjunction with an aerosol provision device that heats from the periphery, the inside and outside of the aerosol generating substrate can be heated simultaneously, which has high heating efficiency, and the aerosol generating substrate is uniformly heated, which can improve the puffing taste. In addition, since the aerosol generating substrate can be heated by the electromagnetic induction heating element, even if the piercing component on the aerosol provision device is removed, an aerosol can still be successfully generated.

[0114] This embodiment also provides an aerosol provision system. The system comprises an aerosol provision device and the above-mentioned aerosol generation article. The aerosol provision device comprises a housing. The housing is provided with a cavity for receiving the aerosol generation article. The aerosol generation article is removably arranged in the cavity. The heating method of the aerosol provision device is a resistance heating method and / or an electromagnetic induction heating method.

[0115] Referring to Figure 10, the aerosol provision system comprises an aerosol provision device 20 and an aerosol generation article 10. The aerosol provision device 20 comprises a shell, a heating module and an energy supply module 204. The heating module and the energy supply module 204 are arranged inside the shell. The shell is provided with a cavity for receiving the aerosol generation article 10. The heating module comprises a piercing component 205. The piercing component 205 at least partially protrudes into the cavity. The energy supply module 204 is electrically connected to the piercing component 205. When the aerosol generation article 10 is received in the cavity, the piercing component 205 passes through the end component 102 and enters the aerosol generating substrate 101. After the piercing component 205 is powered on, it generates heat, thereby heating the aerosol generation article 10.

[0116] Referring to Figure 11 , the aerosol provision system comprises an aerosol provision device 20 and an aerosol generation article 10. The aerosol provision device 20 comprises a shell, a heating module and an energy supply module 204. The heating module and the energy supply module 204 are arranged inside the shell. The shell is provided with a cavity for receiving the aerosol generation article 10. The heating module includes a heating element 202 and a coil 203. The heating element 202 is arranged in the cavity, the coil 203 is wound outside the cavity, and the energy supply module 204 is electrically connected to the coil 203. The heating element 202 is made of a magnetic induction material. When the aerosol generation article 10 is received in the cavity, the heating element 202 surrounds the aerosol generation article 10. After the coil 203 is powered on, the heating element 202 is in the electromagnetic field generated by the coil 203 and generates heat, thereby heating the aerosol generation article 10.

[0117] In the description of this specification, 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 of the present application. In this specification, the indicative expression of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable way in any one or more embodiments or examples.

[0118] Moreover, 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. Thus, the characteristics defined as "first," "second," etc., may explicitly or implicitly comprise at least one such characteristic. In the description of the present application, the term "multiple" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0119] In the present application, unless explicitly defined and limited, terms such as "mounting," "connecting," "connection," "fixing," etc., should be understood broadly. For instance, the connection can be a fixed connection or a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary medium, it can be the internal communication of two components or the interaction between two components, unless explicitly defined otherwise. Those skilled in the art can understand the specific meanings of these terms in the context of the application based on the circumstances.

[0120] Although the embodiments of the application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be considered as limiting the application. Those skilled in the art within the scope of the application can make variations, modifications, replacements, and variations to the abovedescribed embodiments.

Claims

Claims1. An article for an aerosol generating device comprising: aerosol generating material; an upstream end and a downstream end, wherein air is configured to be drawn in a direction towards the downstream end from the upstream end; an end component, arranged upstream of the aerosol generating material, the end component comprising an insulating material and having an airflow channel, the aerosol generating material being located downstream of the end component; a packaging material wrapped around the aerosol generating material and the end component.

2. The article according to claim 1, wherein the thermal conductivity of the insulating material is less than 0.040 W / (m- K).

3. The article according to claim 1 or 2, comprising a heating element arranged in the end component.

4. The article according to claim 1 , 2 or 3, wherein the end component has an air inlet hole located at an end of the end component away from the aerosol generating material.

5. The article according to claim 1 , 2 or 3, wherein the end component has an air inlet hole located on a peripheral surface of the end component.

6. The article according to claim 5, wherein a portion of the packaging material provided around the end component comprises a hole extending through the packaging material such that the hole is in fluid communication with the air inlet hole of the end component.

7. The article according to claim 6, wherein a plurality of holes are arranged circumferentially along the packaging material.

8. The article according to claim 6 or 7, wherein the aerosol generation article comprises an end cap located upstream of the end component.

9. The article according to claim 8, wherein the end cap has an insertion hole configured to transitionally or interference-fittingly engage with a piercing component received by the insertion hole and the end component has a through-hole along its length direction, wherein the through-hole is in communication with the insertion hole.

10. The article according to claim 9, comprising a liner arranged within the through- hole of the end component, the liner having a hollow channel for receiving the piercing component.

11. The article according to claim 10, wherein the liner is a rigid hollow tubular component and wherein the end cap is made of deformable material.

12. The article according to any of claims 1 to 11 , wherein the insulating material is formed into the end component through winding and / or folding.

13. The article according to any of claims 1 to 12, wherein the insulating material comprises a porous structure or an insulating sheet.

14. The article according to claim 13, wherein the insulating material is an insulating sheet, the insulating sheet forming multiple insulating sleeves arranged concentrically with an inner and outer sleeve structure, a radial gap being provided between adjacent insulating sleeves, the radial gap forming at least part of the airflow channel.

15. The article according to claim 13, wherein the insulating material is an insulating sheet, the insulating sheet forms a spiral structure through spiral winding, an axial gap is arranged between radially adjacent layers of the spiral structure, the gap forms the airflow channel.

16. The article according to claim 13, wherein the insulating material is an insulating sheet, the insulating sheet is a pleated configuration, the pleated configuration comprises an alternating first pleated surface and a second pleated surface, a groove is formed between adjacent first pleated surface and second pleated surface, the groove serves as at least part of the airflow channel.

17. The article according to any of claims 1 to 16, wherein the aerosol generating material comprises an electromagnetic induction heating element.

18. The article according to claim 17, wherein one end of the electromagnetic induction heating element is integrated with the end component, while the other end is in the aerosol generating material.

19. An aerosol provision system comprising: an aerosol provision device; and an article according to any one of claims 1 to 18.

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