WO2025238100A1

WO2025238100A1 - Aerosol provision device and aerosol provision system

Info

Publication number: WO2025238100A1
Application number: PCT/EP2025/063277
Authority: WO
Inventors: HanTing XIE; Weidong Gao
Original assignee: Nicoventures Trading Ltd
Current assignee: Nicoventures Trading Ltd
Priority date: 2024-05-14
Filing date: 2025-05-14
Publication date: 2025-11-20
Anticipated expiration: 2026-11-14
Also published as: CN120938153A

Abstract

Embodiments of the present application disclose an aerosol provision device and system. The device comprises: a housing, internally forming a containing chamber; an extractor or a heating tube, arranged in the containing chamber, the extractor or the heating tube having a hollow columnar structure for inserting an aerosol article, and the columnar structure having a predetermined area for accommodating an aerosol-generating substrate; an insulation structure, at least arranged around the periphery of the extractor or the heating tube, and the insulation structure completely covering the outer surface of the predetermined area.

Description

AEROSOL PROVISION DEVICE AND AEROSOL PROVISION SYSTEM

Technical Field

The present application relates to the field of aerosol provision technology, particularly to an aerosol provision device and an aerosol provision system.

Background

Heat-not-burn aerosol provision devices heat the cigarette stick to a certain high temperature during operation, and so in order to avoid the temperature of each structure of the device body exceeding the acceptable range due to the heat spillage during this process, certain measures need to be taken to control the outward diffusion of the high temperature from the heating chamber.

Summary

In accordance with some embodiments described herein, there is provided an aerosol provision device and system to, for example, improve the thermal insulation effect of the aerosol provision device.

In accordance with an aspect, there is provided an aerosol provision device. The device comprises: a housing internally forming a containing chamber; an extractor or a heating tube arranged in the containing chamber, wherein the extractor or the heating tube has a hollow columnar structure for inserting an aerosol article and the hollow columnar structure has a predetermined area for accommodating an aerosol-generating substrate; and an insulation structure at least arranged around the periphery of the extractor or the heating tube, wherein the insulation structure completely covers the outer surface of the predetermined area.

In embodiments, the insulation structure may be utilized to assist with providing a compact thermal insulation space for the aerosol article and the extractor or the heating tube inside it. The insulation structure may be set to completely cover the outer surface of the predetermined area, which may help to greatly increase the proportion of the closed coverage area of the insulation structure to the heat source, thereby helping to improve the thermal insulation effect, reduce the heat energy loss, and improve the electric energy utilization efficiency of the device.

In embodiments of the or any of the above aerosol provision device, the coverage area of the insulation structure on the periphery of the extractor or the heating tube may be larger than the outer surface of the predetermined area.

In embodiments of the or any of the above aerosol provision device, the insulation structure may completely cover the outer surface of the columnar structure.

It can be understood that the larger the coverage area of the insulation structure on the periphery of the extractor or the heating tube, the thermal insulation effect may be improved. In embodiments of the or any of the above aerosol provision device, the insulation structure may comprise an inner housing, an outer housing and a filling layer. The inner housing and the outer housing are assembled to form a hollow structure. The filling layer may be arranged in the hollow structure.

In embodiments of the or any of the above aerosol provision device, the inner housing and/or the outer housing may be a plastic layer, and/or the filling layer may be an aerogel.

In embodiments of the or any of the above aerosol provision device, the thickness of the filling layer may be at least 0.1 mm, and/or the longitudinal dimension of the filling layer in the insulation structure may extend at least beyond the top of the predetermined area and at least beyond the bottom of the predetermined area.

Through embodiments, the wrapping property of the filling layer in the longitudinal direction of the device is far beyond that of the conventional design, may assist with further improving the thermal insulation effect.

In embodiments of the or any of the above aerosol provision device, a first gap may be formed between the bottom of the insulation structure and the bottom wall of the containing chamber. The first gap may be in communication with the external environment.

In embodiments of the or any of the above aerosol provision device, a protrusion extending in the longitudinal direction of the device may be provided between the bottom of the insulation structure and the bottom wall of the accommodating chamber, so as to form the first gap between the bottom of the insulation structure and the bottom wall of the containing chamber.

In embodiments of the or any of the above aerosol provision device, the protrusions may be multiple and spaced apart along the circumferential direction of the insulation structure on the bottom wall of the containing chamber. The first gap may be formed between the adjacent protrusions.

In embodiments of the or any of the above aerosol provision device, the device may further comprise a base located at the bottom of the containing chamber, the bottom end of the extractor is supported on the top surface of the base, and the insulation structure is also sleeved on the outer peripheral wall of the base; and a second gap is formed between the inner wall of the insulation structure and the outer peripheral wall of the base, wherein the second gap is in communication with the first gap.

In embodiments of the or any of the above aerosol provision device, a rib extending along the length direction of the device may be arranged between the outer peripheral wall of the base and the inner wall of the insulation structure, so that the second gap is formed between the inner wall of the insulation structure and the outer peripheral wall of the base.

In embodiments of the or any of the above aerosol provision device, the ribs may be multiple and spaced along the circumferential direction of the base. The second gap may be formed between the adjacent ribs. In embodiments of the or any of the above aerosol provision device, the base may have a chamber. An insulation layer may be arranged around the inner peripheral wall of the chamber.

In embodiments of the or any of the above aerosol provision device, a third gap may be formed between the outer peripheral wall of the insulation structure and the housing. The third gap may be in communication with the first gap.

In embodiments of the or any of the above aerosol provision device, a spacer may be arranged between the housing and the insulation structure to form the third gap.

In embodiments of the or any of the above aerosol provision device, one end of the extractor or the heating tube away from the predetermined area may be snapped onto the housing. The insulation structure may be sleeved outside the extractor or the heating tube.

Through embodiments, the contact surface between the insulation structure and components such as the housing may be be minimised, to assist so that the heat conducted through the direct contact between the insulation structure and other components of the device can be controlled within a very small range. Furthermore, when the insulation structure is heated and its temperature rises under working conditions, a large part of the heat will be trapped within the insulation structure itself and will not be transferred out quickly.

In embodiments of the or any of the above aerosol provision device, the outer peripheral wall of the housing may be a hollowed-out structure, and the third gap may be in communication with the external environment through the hollowed-out structure.

In embodiments of the or any of the above aerosol provision device, the housing material may be at least one of the following: metal, polymeric material, natural material or composite material.

According to an aspect, there is provided an aerosol provision system. The system at least comprises the aerosol provision device according to any one of the above.

According to an aspect, there is provided an aerosol provision device comprising: a housing defining a containing chamber; a tubular component, arranged in the containing chamber, the tubular component comprising a hollow columnar structure configured to receive an article comprising an aerosol-generating substrate portion, the hollow columnar structure defining a heating region configured to accommodate the aerosolgenerating substrate portion of the article; and an insulation structure; wherein the insulation structure extends to at least each of an axial extent and a circumferential extent of the heating region.

In embodiments of the or any of the above aerosol provision device, the insulation structure may extend to at least each of an axial extent and a circumferential extent of the columnar structure.

In embodiments of the or any of the above aerosol provision device, the insulation structure may comprise an inner housing, an outer housing and an intermediate layer. The inner housing and the outer housing may form a hollow structure, and the intermediate layer may be arranged in the hollow structure.

In an embodiment of the or any of the above aerosol provision device, the aerosol provision device comprises a heating member. The heating member may act as a heating element. In embodiments, the heating member may be in the containing chamber. The heating member may be a heating tube. The heating member may protrude in the containing chamber. The heating member may be a protruding member, such as a pin or blade.

In an embodiment of the or any of the above aerosol provision device, when the heating element is a protruding member, the heating region may correspond to the area of the tubular component surrounding the heating element. The axial extent of the heating region may correspond to the axial extent of the protruding member.

In an embodiment of the or any of the above aerosol provision device, when the heating element is a heating tube, the heating region may correspond to the heating area of the heating tube.

In an embodiment of the or any of the above aerosol provision device, the length of the heating area of the heating element is less than or equal to the overall length of the heating element.

According to an aspect, there is provided an aerosol provision system comprising an aerosol provision device according to any of the above, and an article comprising an aerosol-generating material portion.

In embodiments of the or any of the above aerosol provision device, a length of the heating region substantially corresponds with a length of the aerosol-generating material portion.

One or more of the above embodiments may have at least one or more of the following beneficial effects:

The aerosol provision device comprises: a housing, internally forming a containing chamber; an extractor or a heating tube, arranged in the containing chamber, the extractor or the heating tube having a hollow columnar structure for inserting an aerosol article, and the columnar structure having a predetermined area for accommodating an aerosolgenerating substrate; an insulation structure, at least arranged around the periphery of the extractor or the heating tube, and the insulation structure completely covering the outer surface of the predetermined area. The insulation structure can be used to provide a compact thermal insulation space for the aerosol article and the extractor or the heating tube inside it. Meanwhile, by setting the insulation structure to completely cover the outer surface of the predetermined area, the proportion of the closed coverage area of the insulation structure to the heat source may be greatly increased, thereby improving the thermal insulation effect, reducing the heat energy loss, and improving the electric energy utilization efficiency of the device. Additional aspects and advantages will be partially described in the following description, some will become apparent from the following description, and others will be learned through the practice of the application.

Brief Description of the Drawings

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. Moreover, similar numbers in the figures are used to represent similar components, wherein:

Fig. 1 is a schematic perspective view of an aerosol provision device and an aerosol article;

Fig. 2 is a sectional view of the aerosol provision device of Fig. 1 ;

Fig. 3 is an exploded view of the aerosol provision device of Fig. 1 ;

Fig. 4 is a schematic structural view of an extractor of the aerosol provision device of Fig. 1 ;

Fig. 5 is a schematic structural view of the extractor of the aerosol provision device of Fig. 1 ;

Fig. 6 is a schematic perspective view of the aerosol provision device of Fig. 1 ;

Fig. 7 is a schematic perspective view of the aerosol provision device of Fig. 1 ;

Fig. 8 is a schematic perspective view of a partial structure of the aerosol provision device of Fig 1 ;

Fig. 9 is a schematic perspective view of an aerosol provision device and an aerosol article;

Fig. 10 is a sectional view of the aerosol provision device of Fig. 9; and

Fig. 11 is an exploded view of the aerosol provision device of Fig. 9.

Description of Reference Numerals in the Drawings:

100, housing; 110, containing chamber; 120, hollowed-out structure; 200, extractor; 210, columnar structure; 211 , predetermined area; 220, opening; 230, air intake structure; 231 , first air intake hole; 232, second air intake hole; 233, auxiliary air passage; 240, concave-convex structure; 241 , recessed part; 242, protruded part; 250, grip ring; 251 , weight reduction groove; 300, 300', insulation structure; 310, 310', inner housing; 31T, first connecting piece; 312', third connecting piece; 313', flange; 320, 320', outer housing; 32T, second connecting piece; 330, 330', filling layer; 340, positioning block; 350, buckle; 360', top cover; 36T, fourth connecting piece; 400, heating module; 410, heating needle; 420, heat insulation base; 430, insulation layer; 500, aerosol article; 610, first gap; 620, second gap; 630, third gap; 700, protrusion; 800, base; 810, third connecting hole; 900, rib; 1000, spacer; 1100, light ring; 1200, button; 1300, fuselage; 1310, mounting hole; 1320, first connecting hole; 1330, second connecting hole; 1400, cover plate.

Detailed Description

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 and are not intended to limit the scope of protection.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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 aerosol-modifying agent.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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 aerosolgenerating 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. 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.

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. 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.

A consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user. A consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent. A consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use. The heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.

A susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field. The susceptor may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material. The heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material. The susceptor may be both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms. The device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.

An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol. The aerosolmodifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent. The aerosol-modifying agent may, for example, be an additive or a sorbent. The aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent. The aerosol-modifying agent may, for example, be a solid, a liquid, or a gel. The aerosolmodifying agent may be in powder, thread or granule form. The aerosol-modifying agent may be free from filtration material.

An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material. 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 aerosol-generating 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.

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.

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 aerosolgenerating 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.

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.

With existing heat-not-burn aerosol provision devices heat leakage caused by the poor thermal insulation ability will directly affect the battery life of the aerosol provision device.

The embodiments of the present application creatively propose a new aerosol provision device. The device is provided with an insulation structure arranged at least around the periphery of the extractor or the heating tube, and the insulation structure completely covers the outer surface of the predetermined area for accommodating the aerosol-generating substrate, greatly increasing the proportion of the closed coverage area of the insulation structure to the heat source, thereby improving the thermal insulation effect, reducing the heat energy loss, and improving the electric energy utilization efficiency of the device.

It should be noted that the aerosol provision device provided in the embodiments of the present application does not specifically limit the heating method it adopts, and it comprises but is not limited to the following methods: central needle heating (such as resistive type, inductive type, etc.), central plate heating (such as resistive type, inductive type, etc.), circumferential heating (such as resistive type, inductive type, infrared radiation type, etc.), hybrid heating (such as central/circumferential hybrid heating, etc.) and other heating methods (such as air flow heating, etc.).

Embodiment 1

Fig. 1 is a schematic perspective view of an aerosol provision device and an aerosol article, Fig. 2 is a sectional view of the aerosol provision device, and Fig. 3 is an exploded view of the aerosol provision device. An aerosol provision system 10 comprises the aerosol provision device 20 and the aerosol article 500. The aerosol article 500 is an article comprising aerosol generating material. The aerosol generating material is an aerosol generating material portion of the article.

As shown in Fig. 1 to Fig. 3, the aerosol provision device 20 generally comprises a housing 100, an extractor 200, an insulation structure 300, a heating module 400, etc. Among them, a containing chamber 110 is formed inside the housing 100, and components such as the extractor 200, the insulation structure 300, and the heating module 400 are all accommodated and arranged in the containing chamber 110. The extractor 200 has a columnar structure 210. The columnar structure 210 is a hollow structure. An internal space for inserting the aerosol article 500 is formed in the hollow structure. The extractor 200 acts as a tubular component. The term ‘tubular’ relates to a generally tubular configuration, and is not limited to any particular cross-sectional shape, such as circular. The tubular component acts as a hollow component. The tubular component may have one or more of a base, one or more cut outs, and other features such as protrusions, recesses, or flanges.

In embodiments, the extractor 200 is omitted. In embodiments the tubular component is a tubular member. The tubular component in embodiments is a heating member. The heating member may be a heating tube. The heating member acts as a heating element. In such an embodiment, the configuration of the heating tube may have the configuration of the extractor 200 as described herein. The extractor 200 in embodiments comprises the heating member. In embodiments, a heating member is in the containing chamber 110. The heating member in embodiments is the heating tube. In embodiments the heating member protrudes in the containing chamber 110. In embodiments the heating member is a pin or blade.

In embodiments, when the heating element is a protruding member, the heating region corresponds to the area of the tubular component surrounding the heating element. The axial extent of the heating region corresponds to the axial extent of the protruding member.

In embodiments, when the heating element is a heating tube, the heating region corresponds to the heating area of the heating tube. For example, in an induction heating system, the heating area corresponds to the extent of the heating tube surrounded by an induction coil.

In embodiments, the length of the heating area of the heating element is less than or equal to the overall length of the heating element.

In embodiments, the extractor 200 is configured to move in the containing chamber 110. In embodiments, the extractor 200 is movable relative to the heating member.

The containing chamber 110 defines a longitudinal axis. In embodiments, the extractor 200 is configured to move in the containing chamber 110 along the longitudinal axis. The longitudinal axis defines a longitudinal direction.

It can be understood that the aerosol article 500 comprises various rod-shaped or stripshaped structures that are used to be inserted into the extractor 200 and can be heated and atomized to generate an aerosol, such as those containing tobacco, those without tobacco but containing nicotine, and those without tobacco and without nicotine, etc., which will not be listed one by one here. The aerosol article 500 comprises an aerosol-generating substrate, and the aerosol-generating substrate can generate an aerosol for the user to inhale after being heated and atomized by the heating module 400. Among them, the columnar structure 210 has a predetermined area 211 , and the predetermined area 211 is used to accommodate the aerosolgenerating substrate of the aerosol article. The insulation structure 300 is at least arranged around the periphery of the extractor 200, and the insulation structure 300 completely covers the outer surface of the above-mentioned predetermined area 211. By setting the insulation structure 300 to completely cover the outer surface of the predetermined area 211 , the proportion of the closed coverage area of the insulation structure 300 to the heat source is greatly increased, thereby improving the thermal insulation effect, reducing the heat energy loss, and improving the electric energy utilization efficiency of the device.

In embodiments, the article comprises an aerosol-generating substrate portion. The aerosol-generating substrate portion comprises the aerosol-generating substrate. The aerosol-generating substrate comprises aerosol generating material.

In embodiments, the insulation structure entirely surrounds the outer surface of the predetermined area. The outer surface is entirely covered by the insulation structure in a circumferential direction. The term ‘completely covering’ refers to extending to at least each of an axial extent and a circumferential extent.

The predetermined area 211 acts as a heating region. The heating region is configured to accommodate the aerosol-generating substrate portion of the article.

The heating region may be of any suitable axial length. The length of the heating region in the axial direction corresponds to the length of the aerosol-generating substrate portion of the article. The first portion is defined by a portion of the axial length of the columnar structure. The axial length of the first portion is less than the axial length of the columnar structure.

It can be understood that the larger the coverage area of the insulation structure 300 on the periphery of the extractor 200, the better the thermal insulation effect. Therefore, in some embodiments, the coverage area of the insulation structure 300 on the periphery of the extractor 200 is optionally larger than the outer surface of the predetermined area 211. The insulation structure 300 may completely cover the outer surface of the columnar structure 210.

The insulation structure may extend axially beyond at least one end of the predetermined area or first portion. The axial length of the insulation structure may be larger than the axial length of the first portion.

Further referring to Fig. 3, the insulation structure 300 comprises an inner housing 310, an outer housing 320, and a filling layer 330. Among them, the inner housing 310 and the outer housing 320 cooperate to form a hollow structure, and the filling layer 330 is arranged in the hollow structure. It should be noted that in the embodiments, the assembly method between the inner housing 310 and the outer housing 320 is not specifically limited. For example, in some embodiments, the inner housing 310 and the outer housing 320 are integrally formed and a hollow structure is formed between them.

The filling layer 330 acts as an intermediate layer. The hollow structure comprises a cavity, defined by the inner housing and outer housing. The filling layer is disposed in the cavity, between the inner housing and outer housing.

In some embodiments, the inner housing 310 and/or the outer housing 320 is a plastic layer. It can be understood that both the inner housing 310 and the outer housing 320 are made of high-temperature-resistant plastic materials, such as polyetheretherketone (PEEK), etc., which are not specifically limited here.

In some embodiments, the filling layer 330 is an aerogel thermal insulation material, such as silica aerogel, etc., which is also not specifically limited here.

In embodiments, the thickness of the filling layer 330 is at least 0.1 mm. The thickness of the filling layer 330 can be any value between 0.1 and 1.5 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm,

1.4 mm, 1.5 mm, etc. The thickness of the filling layer 330 can be any value between 1.0 and

1.5 mm, such as 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc., which will not be exhaustively listed here. Setting the thickness of the filling layer 330 to any value between 1 .0 and 1.5 mm, compared with the conventional design (usually 0.5 to 1.0 mm), it is thicker, so the thermal insulation effect will be better.

Further referring to Fig. 3, in embodiments, the insulation structure 300 further comprises a positioning block 340 and a buckle 350 arranged on the outer side wall of the outer housing 320. The positioning block 340 makes surface contact with the housing 100, thereby ensuring the coaxiality between the insulation structure 300 and the axis of the aerosol article. The buckle 350 cooperates with the pre-set slot on the housing 100 to form a buckle fixation, fixing the position of the insulation structure 300 in the device. At the same time, it also enables the integrally designed insulation structure 300 to be conveniently removed from the device when necessary, without affecting other fasteners of the device during the removal process, improving the cleaning efficiency.

It can be understood that through the above settings, when the insulation structure 300 is fixed, the contact surfaces with other components of the device are only the small-area contact surfaces between the positioning block 340 and the buckle 350 and the housing 100, and the small-area contact surfaces with the protrusions on the bottom wall. The sum of the areas of the above contact surfaces is a very small proportion compared to the total surface area of the insulation structure 300, thus forming a fixing method that can be analogized to a suspended type. This setting method, on the one hand, can control the heat conducted through the direct contact between the insulation structure 300 and other components of the device within a very small range. Furthermore, when the insulation structure 300 is heated and its temperature rises under working conditions, a large part of the heat will be trapped within the insulation layer itself and will not be transferred out quickly. In simple terms, even if the temperature of the insulation structure 300 rises significantly, it cannot drive the surrounding components to heat up rapidly together with it. On the other hand, there is still a part of the heat diffusion of the insulation structure 300 to the outside. However, in the above design, this part of the heat can only be transmitted through infrared thermal radiation and convection with the outside air. With the assistance of the specially designed housing 100, these two heat transfer methods will not cause the rapid temperature rise of the housing 100 and other components, nor will they significantly increase the contact perception temperature when the user holds the fuselage.

The number of the positioning block 340 and the buckle 350 can be set according to the actual product requirements. The positioning block 340 and the buckle 350 in the embodiments comprise multiple ones, and the multiple positioning blocks 340 and buckles 350 are arranged at intervals on the outer side wall of the outer housing 320 along the circumferential direction of the insulation structure 300.

In embodiments, the longitudinal dimension of the filling layer 330 in the insulation structure 300 extends at least beyond the top of the predetermined area 211 and at least beyond the bottom of the predetermined area 211 . The longitudinal dimension of the filling layer 330 in the insulation structure 300 can extend at least 10 mm beyond the top of the predetermined area 211 and at least 5 mm beyond the bottom of the predetermined area 211. It can be understood that the heating module 400 of the aerosol provision device with the central needle heating method usually comprises a heating needle 410, and the heating needle 410 is used to be inserted into the aerosol-generating substrate of the aerosol article 500 to heat it to generate an aerosol. The longitudinal dimension of the filling layer 330 in the insulation structure 300 extends at least beyond the top of the heating needle 410, optionally at least 10 mm, and at least beyond the bottom of the heating needle 410, optionally at least 5 mm, so that the wrapping property of the filling layer 330 in the length direction of the device is also far beyond the conventional design, further improving the thermal insulation effect.

Further referring to Fig. 3 and Fig. 4, it is different from the extractor of the conventional centrally heated aerosol provision device in that the air intake method of the extractor 200 in the embodiments is designed to be from bottom to top, and the external gas enters the hollow columnar structure 210 for inserting the aerosol article from the bottom of the extractor 200. In embodiments, the extractor 200 further comprises an opening 220 communicating with the internal space of the columnar structure 210 and an air intake structure 230 arranged at one end far away from the opening 220. Since the air channel design from bottom to top is adopted, there is no need to set the groove/protrusion structure for accommodating the air flow on the wall surface of the extractor 200, so that the inner and outer wall surfaces of the columnar structure 210 of the extractor 200 can be set as a simple and smooth standard cylindrical shape.

It can be understood that by setting the extractor 200 to adopt the air channel design from bottom to top, the air flow inside it flows from bottom to top. According to the thermodynamic principle, under a certain pressure, the density of hot air is slightly less than that of cold air. Therefore, in the absence of severe external disturbances, if there is a temperature difference in the air flow field, the hot air flow will tend to move upward, and the cold air flow will tend to move downward. In most normal working conditions of the aerosol provision device, the aerosol 1 article, that is, the heat source, is always located at the upper end position relative to the cold air in the initial section of the air intake channel. This means that the hot air in the columnar structure 210 or at the end of the air channel will not spontaneously flow out of the air intake channel upward from the end of the air intake channel like the hot air in the air intake channel from top to bottom, resulting in continuous heat energy loss.

In embodiments, the diameter of the inner wall of the columnar structure 210 is set to be slightly smaller than the diameter of the aerosol article to be heated. Thus, a slight interference fit will be generated after the aerosol article is inserted, and then the aerosol article will be fully attached to the inner wall of the columnar structure 210, avoiding the existence of gaps that cause air to stay. At the same time, the smooth outer wall of the columnar structure 210 can be fully attached to the inner wall of the insulation structure 300, improving the overall ability of the extractor 200 and the insulation structure 300 to control heat leakage, and further improving the thermal insulation effect of the aerosol article. In addition, the smooth inner and outer walls of the columnar structure 210 also contribute to improving the cleanability of the extractor 200 and its processability during production.

It can be understood that as small a gap as possible can be reserved between the insulation structure 300 and the extractor 200, which is used for taking out and putting in the extractor. Therefore, the insulation structure 300 and the extractor 200 can be regarded as being closely matched, so that the insulation structure 300 can provide a compact thermal insulation space for the aerosol article 500 and the extractor 200 at the axial center position, reducing the heat accumulation and heat leakage caused by redundant structures.

Further referring to Fig. 4, in the embodiments, the air intake structure 230 comprises a first air intake hole 231 , a second air intake hole 232, and an auxiliary air passage 233. The first air intake hole 231 is arranged at the central position of the bottom wall of the columnar structure 210, communicating the internal space of the columnar structure 210 with the external environment. The second air intake hole 232 is arranged at the edge position of the bottom wall of the columnar structure 210, also communicating the internal space of the columnar structure 210 with the external environment. The auxiliary air passage 233 extends radially along the bottom wall of the columnar structure 210, and one end of the auxiliary air passage 233 is communicated with the first air intake hole 231 , and the other end is communicated with the external environment. With such a setting, the air intake structure 230 can have the characteristics of a compact structure, high air intake efficiency, excellent supporting effect, and less heat loss in the air intake passage.

In embodiments, the second air intake holes 232 comprise multiple ones, and the multiple second air intake holes 232 are arranged at intervals along the circumferential direction of the columnar structure 210 on the edge of the bottom wall of the columnar structure 210.

In embodiments, the auxiliary air passages 233 comprise multiple ones, and the multiple auxiliary air passages 233 are arranged at intervals along the circumferential direction of the columnar structure 210 on the bottom wall of the columnar structure 210.

Referring to Fig. 5, the extractor 200 further comprises a concave-convex structure 240 arranged on the bottom wall of the internal space of the columnar structure 210. In embodiments, the concave-convex structure 240 comprises recessed parts 241 and protruded parts 242 arranged at intervals, the recessed parts 241 are communicated with the second air intake holes 232, and the protruded parts 242 are abutted against the aerosol article. With such a setting, on the one hand, it can reduce the retention of substances such as soot and condensate in the internal space (i.e. , the heating chamber) of the columnar structure 210 during use. On the other hand, when the user takes out the extractor 200 from the device after suctioning, the aerosol article can obtain uniform supporting force on the entire bottom of the internal space of the columnar structure 210, thus minimizing the residue of the aerosol-generating substrate on the heating needle and the falling off of the aerosol-generating substrate in the extractor.

In some embodiments, both the recessed parts 241 and the protruded parts 242 comprise multiple ones, and the multiple recessed parts 241 and the multiple protruded parts 242 are arranged at intervals. Each recessed part 241 is communicated with at least one second air intake hole 232.

Further referring to Fig. 3 and Fig. 4, in embodiments, the extractor 200 further comprises a grip ring 250. The grip ring 250 extends radially outward along the columnar structure 210 at the opening 220. The diameter of the grip ring 250 is set to be larger than the diameter of the columnar structure 210, and the thickness of the grip ring 250 is set to be greater than the thickness of the side wall of the columnar structure 210. It can be understood that the grip ring

250 with a large diameter and a large thickness can improve the structural rigidity of the entire extractor 200, especially the grip part at the top, so that when the user holds the extractor 200 with force or the extractor 200 falls and collides with the entire device, its own deformation can be reduced, and the stability and integrity of the overall structure can be maintained.

In some embodiments, a weight reduction groove 251 is arranged on the surface of the grip ring 250 facing the air intake structure 230. The arrangement of the weight reduction groove

251 can reduce the structural weight of the grip ring 250 while ensuring its high strength and high rigidity. At the same time, the existence of the grip ring 250 significantly reduces the cross- sectional area (heat conduction area) in all directions of the grip ring 250, thereby reducing the diffusion speed of the high temperature at the center of the extractor to the grip ring 250, and thus reducing the contact perception temperature of the user to the grip ring 250 after the heating cycle. It should be noted that in the embodiments, the shape and size of the weight reduction groove 251 are not specifically limited, and can be set according to the actual product requirements.

In embodiments, one end of the extractor 200 away from the predetermined area 211 (i.e., the end of the extractor 200 where the grip ring 250 is arranged) is snapped onto the housing 100. The extractor 200 is snapped onto the housing 100 through the grip ring 250. The extractor is mounted to the housing by the grip ring. The insulation structure 300 is sleeved outside the extractor. The insulation structure surrounds the extractor or heating tube. In some embodiments, the insulation structure 300 has an interference fit with the rib 900, so that the insulation structure 300 has no contact with the housing 100, thereby reducing the heat transferred to the housing 100 through the insulation structure 300. In other embodiments, the insulation structure 300 can be connected to the housing by means of a buckle, etc., so that there is only minimal contact between the insulation structure 300 and the housing 100, thereby reducing the heat transferred to the housing 100 through the insulation structure 300.

Referring to Fig. 6, in embodiments, a first gap 610 is formed between the bottom of the insulation structure 300 and the bottom wall of the containing chamber 110, and the first gap 610 is in communication with the external environment. It can be understood that, in the embodiments, the first gap 610 is set to be communicated with the air intake structure 230, so that the air intake structure 230 is communicated with the external environment through the first gap 610, enabling the air in the external environment to enter the air intake structure 230 through the first gap 610, and then enter the internal space of the columnar structure 210 through the air intake structure 230.

Referring to Fig. 7, in some embodiments, a protrusion 700 is provided between the bottom of the insulation structure 300 and the bottom wall of the containing chamber 110. The protrusion 700 extends in the longitudinal direction of the device on the bottom wall of the containing chamber 110, so as to form the above-mentioned first gap 610 between the bottom of the insulation structure 300 and the bottom wall of the containing chamber 110.

It can be understood that since the bottom of the insulation structure 300 only makes contact with the protrusion 700 on the bottom wall of the containing chamber 110, and the contact area is much smaller than the area of the bottom surface of the insulation structure 300, a structure similar to a suspended support is formed between the insulation structure 300 and the bottom wall of the containing chamber 110. Thus, the heat conducted through the direct contact between the insulation structure 300 and other components of the device can be controlled within a very small range. Furthermore, when the insulation structure 300 is heated and its temperature rises under working conditions, a large part of the heat will be trapped within the insulation layer itself and will not be transferred out quickly.

It should be noted that in the embodiments, the number of the protrusions 700 is not specifically limited, and it can be set according to the actual product requirements. The protrusions 700 in the embodiments comprise multiple ones. The multiple protrusions 700 are arranged at intervals on the bottom wall of the containing chamber 110 along the circumferential direction of the insulation structure 300, and the above-mentioned first gap 610 is formed between the adjacent protrusions 700.

Further referring to Fig. 2, Fig. 3 and Fig. 7, in embodiments, the device further comprises a base 800, and the base 800 is arranged at the bottom of the containing chamber 110. On the one hand, the bottom end of the extractor 200 is supported on the top surface of the base 800. On the other hand, the insulation structure 300 is sleeved on the outer peripheral wall of the base 800, and a second gap 620 is formed between the inner wall of the insulation structure 300 and the outer peripheral wall of the base 800. The insulation structure may surround a portion of the outer peripheral wall. The second gap 620 is communicated with the first gap 610, so that the second gap 620 is in communication with the external environment. It can be understood that, in the embodiments, the second gap 620 is set to be communicated with the air intake structure 230, so that the air intake structure 230 is successively communicated with the external environment through the second gap 620 and the first gap 610, enabling the air in the external environment to enter the air intake structure 230 successively through the first gap 610 and the second gap 620, and then enter the internal space of the columnar structure 210 through the air intake structure 230.

Further referring to Fig. 7, in some embodiments, a rib 900 is arranged between the outer peripheral wall of the base 800 and the inner wall of the insulation structure 300. The rib 900 extends along the length direction of the device, so as to form the above-mentioned second gap 620 between the inner wall of the insulation structure 300 and the outer peripheral wall of the base 800. It should be noted that in the embodiments, the number of the ribs 900 is not specifically limited, and it can be set according to the actual product requirements. The ribs 900 in the embodiments comprise multiple ones. The multiple ribs 900 are arranged at intervals on the outer peripheral wall of the base 800 along the circumferential direction of the base 800, and the above-mentioned second gap 620 is formed between the adjacent ribs 900.

In some embodiments, a light ring 1100 is arranged between the base 800 and the bottom of the containing chamber 110. Further, the light ring 1100 is arranged close to the air intake structure 230, so that the air intake structure 230 can also serve as a light inlet. Thus, even when the extractor 200 has been placed inside the housing, the light ring 1100 can provide illumination for the inside of the extractor 200. The circular surface of the light ring 1100 is arranged parallel to the lower end surface of the extractor 200. The device is provided with multiple different light effect areas. When the installation state of the extractor 200 is different, the light ring 1100 will illuminate different light effect areas, enabling the user to conveniently and intuitively check the condition of the internal area of the aerosol provision device at any time, so as to promptly eliminate abnormal situations such as foreign objects or cigarette stick residues in the chamber.

It should be noted here that in the embodiments, the setting form of the light effect area is not limited, and the user can set it according to the actual product requirements. In embodiments, some buttons can also be set on the device to control the opening or closing of the light ring 1100. Among them, in some embodiments, the button can be one or a combination of more than one of a mechanical rebound button, a capacitive touch button, a capacitive touch and vibration feedback button, etc. In other embodiments, the button can also be one or a combination of more than one of a mechanical knob, a mechanical roller, an electromagnetic roller, etc., which is not specifically limited here.

In some embodiments, the base 800 can be made of high-temperature-resistant PEEK plastic, which is not specifically limited.

Referring to Fig. 2, a third gap 630 is formed between the outer peripheral wall of the insulation structure 300 and the housing 100, and the third gap 630 is communicated with the first gap 610. It can be understood that, in the embodiments, the third gap 630 is set to be communicated with the external environment, so that the first gap 610 is communicated with the external environment through the third gap 630, enabling the air in the external environment to enter the first gap 610 through the third gap 630.

Further referring to Fig. 1 and Fig. 2, in embodiments, the outer peripheral wall of the housing 100 is a hollowed-out structure 120, and the third gap 630 is communicated with the external environment through the hollowed-out structure 120, enabling the air in the external environment to enter the third gap 630 through the hollowed-out structure 120.

In embodiments, the material of the housing 100 is at least one of metal, polymeric material, natural material or composite material, which is not specifically limited here, and the user can set it according to the actual requirements. Among them, metal materials comprise stainless steel, titanium alloy, aluminum-magnesium alloy, etc., polymeric materials comprise various engineering plastics, PEEK, PC, PP, etc., and natural materials comprise natural stone, natural crystal, etc., which will not be listed one by one here.

Further referring to Fig. 3, in some embodiments, a spacer 1000 is arranged between the housing 100 and the insulation structure 300, so as to form the above-mentioned third gap 630 between the housing 100 and the insulation structure 300. It should be noted that in the embodiments, the setting position, shape, size, etc. of the spacer 1000 are not specifically limited, and can be set according to the actual product requirements. In some embodiments, the spacer 1000 can be arranged on the inner wall of the housing 100 or integrally formed with the inner wall of the housing 100; in other embodiments, the spacer 1000 can be arranged on the outer side wall of the insulation structure 300 or integrally formed with the outer side wall of the insulation structure 300.

In embodiments, the spacer 1000 can be integrally formed with the positioning block 340, that is, the positioning block 340 is used as the spacer between the housing 100 and the insulation structure 300, which can further reduce the contact area between the housing 100 and the insulation structure 300 and reduce the heat transfer between the insulation structure 300 and the housing.

Further referring to Fig. 2 and Fig. 3, in embodiments, the heating module 400 comprises a heating needle 410, a heat insulation base 420 and an insulation layer 430. The heating needle 410 is arranged at the central position of the end of the heat insulation base 420 facing the extractor 200, the base 800 is surrounded outside the heat insulation base 420, and the insulation layer 430 is filled between the base 800 and the heat insulation base 420. The insulation layer 430 can be made of aerogel thermal insulation material. The arrangement of the insulation layer 430 can greatly reduce the ability of a small part of the heat freely wandering in the air intake passage to diffuse towards the side wall of the air intake passage.

It can be understood that for the cross-section of the second gap 620 along the transverse direction of the device, its outer ring is surrounded by the insulation structure 300, and the inner ring is also surrounded by the insulation layer 430. Therefore, the higher-temperature air in the second gap 620 is surrounded by the thermal insulation material on both sides, which greatly reduces the rate of heat transfer outward through the higher-temperature air in the second gap 620 and improves the overall thermal insulation efficiency of the system.

It should be noted that the embodiments do not specifically limit the heat insulation base 420, and it can be set according to the actual requirements. For example, the heat insulation base 420 may be a ceramic base, etc.

It should be noted that the aerosol provision device provided in the embodiments, in addition to the components described above, also comprises a fuselage 1300, and the above- mentioned components are all assembled on the fuselage 1300. It can be understood that some other components for the aerosol provision device are also integrated in the fuselage 1300, such as a microcontroller (MCU), a battery, a control circuit, etc., which will not be described in detail here.

Referring to Fig. 8, in the embodiments, a mounting hole 1310 is arranged at the bottom of the fuselage 1300. A first connecting hole 1320 and a second connecting hole 1330 are arranged along the circumferential direction of the mounting hole 1310 at the edge of the mounting hole 1310. The first connecting hole 1320 extends along the longitudinal direction of the fuselage, and the second connecting hole 1330 extends along the transverse direction of the fuselage. A third connecting hole 810 is arranged at one end of the base 800 away from the heating needle 410. After the heating module 400 is assembled into the base 800, the base 800 is placed in the mounting hole 1310 of the fuselage 1300, and then the first connecting hole 1320 and the third connecting hole 810 are connected with a connecting piece such as a bolt, so as to assemble and fix the base 800 on the fuselage 1300.

It can be understood that, in order to improve the installation stability of the base 800 and the fuselage 1300, in some embodiments, the number of the first connecting holes 1320 and the second connecting holes 1330 both comprises multiple ones. In some embodiments, the device may further comprise a cover plate 1400. The cover plate 1400 is adapted to the mounting hole 1310. After the base 800 is assembled and fixed on the fuselage 1300, the cover plate 1400 is placed in the mounting hole 1310, and then the cover plate 1400 is assembled and fixed on the fuselage 1300 with a connecting piece such as a bolt. In other embodiments, the aerosol provision device may also adopt the circumferential heating method. It can be understood that when the aerosol provision device adopts the circumferential heating method, it does not have the extractor 200 and the heating needle, but has a heating tube. The structure of the heating tube can refer to the structure of the extractor in the embodiments. In addition, the other structures of the aerosol provision device are the same as the relevant structures in the above embodiments, and the specific content can refer to the relevant content described above, which will not be described in detail here.

Embodiment 2

The difference from Embodiment 1 lies in that, in the embodiments, the assembly method of the insulation structure 300' is different from that in Embodiment 1.

Referring to Fig. 9 to Fig. 11 , in the embodiments, the inner housing 310' and the outer housing 320' are two independent components, which are connected together and cooperate to form a hollow structure between them. The inner housing 310' is provided with a first connecting piece 31 T, and the outer housing 320' is provided with a second connecting piece 32T. The first connecting piece 31 T and the second connecting piece 32T can be connected by means of snap-fitting, so as to realize the connection between the inner housing 310' and the outer housing 320'.

It should be noted that in the embodiments, the implementation of the first connecting piece 31T and the second connecting piece 32T is not limited, and it can be set according to the actual product requirements. In embodiments, the first connecting piece 31T can be a connecting block, which is formed by extending in a direction away from the inner housing 310' along the transverse direction of the inner housing 310' on the outer side wall of the inner housing 310'. The second connecting piece 32T can be a clamping groove. When the inner housing 310' and the outer housing 320' are assembled together, the connecting block can be snapped into the clamping groove, so as to fix the inner housing 310' and the outer housing 320' together.

It should be noted that in the embodiments, the number of the first connecting piece 31 T and the second connecting piece 32 T is not limited, and the user can set it according to the actual product requirements. It can be understood that, in order to improve the reliability of the connection between the inner housing 310' and the outer housing 320', the number of the first connecting piece 31T and the second connecting piece 32T may be set to be at least 2.

Further referring to Fig. 11, the insulation structure 300' in the embodiments further comprises a top cover 360'. Both the inner housing 310' and the outer housing 320' are in the shape of a hollow cylinder, the top cover 360' is in the shape of a ring, the diameter of the inner housing 31 O' is smaller than that of the outer housing 320'. After the inner housing 31 O' and the outer housing 320' are assembled together, a hollow structure is formed between them, the filling layer 330' is filled in the hollow structure, and the top cover 360' is arranged at one end of the inner housing 310' and the outer housing 320' away from the heating module 400 to close the opening at one end of the above-mentioned hollow structure away from the heating module 400. Further referring to Fig. 11 , a flange 313' is arranged at one end of the inner housing 310' close to the heating module 400. The flange 313' is formed by extending in a direction away from the inner housing 31 O' along the transverse direction of the inner housing 31 O' on the outer side wall of the inner housing 310'. When the inner housing 310' and the outer housing 320' are assembled together, the flange 313' closes the opening at one end of the above-mentioned hollow structure close to the heating module 400.

In some embodiments, a third connecting piece 312' is further arranged on the inner housing 310', and a fourth connecting piece 36T is arranged on the top cover 360'. The third connecting piece 312' and the fourth connecting piece 361 ' can be connected by means of snapfitting, so as to realize the connection between the inner housing 310' and the top cover 360'. It should be noted that in the embodiments, the implementation of the third connecting piece 312' and the fourth connecting piece 36T is not limited, and it can be set according to the actual product requirements. In embodiments, the third connecting piece 312' can be a connecting block, and the fourth connecting piece 36T can be a clamping groove. When the inner housing 310' and the top cover 360' are assembled together, the connecting block can be snapped into the clamping groove, so as to fix the inner housing 310' and the top cover 360' together.

It should be noted that in the embodiments, the number of the third connecting piece 312' and the fourth connecting piece 36T is also not limited, and the user can set it according to the actual product requirements. It can be understood that, in order to improve the reliability of the connection between the inner housing 310' and the top cover 360', the number of the third connecting piece 312' and the fourth connecting piece 36T may be set to be at least 2.

It can be understood that the shape of the filling layer 330' can be adjusted adaptively according to the shape of the hollow structure formed between the inner housing 310' and the outer housing 320'. For example, notches for accommodating the first connecting piece 31 T and the second connecting piece 32T are reserved on the filling layer 330', etc., which will not be described in detail here.

As an illustrative rather than a restrictive description, when the insulation structure 300' in the embodiments is assembled, the filling layer 330' can be first sleeved on the inner housing 310', then the outer housing 320' is sleeved on the outer periphery of the filling layer 330', and is assembled and fixed through the first connecting piece 31 T and the second connecting piece 32T. After the inner housing 310' and the outer housing 320' are assembled, the top cover 360' and the inner housing 310' are assembled and fixed through the third connecting piece 312' and the fourth connecting piece 36T to form a closed cavity.

Further referring to Fig. 9, in the embodiments, the device further comprises a button 1200, and the button 1200 is configured to control the opening or closing of the light ring 1100. Among them, in some embodiments, the button can be one or a combination of more than one of a mechanical rebound button, a capacitive touch button, a capacitive touch and vibration feedback button, etc. In other embodiments, the button can also be one or a combination of more than one of a mechanical knob, a mechanical roller, an electromagnetic roller, etc., which is not specifically limited here.

Embodiment 3

Corresponding to Embodiment 1 or 2 above, an aerosol provision system is provided, which comprises at least the aerosol provision device described in any one of Embodiment 1. In this embodiment, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above introduction, and will not be repeated hereinafter.

Each embodiment in this specification is described in a progressive manner, and for the same or similar parts among the various embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for the relevant parts, reference can be made to the partial description of the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed over multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

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. In this specification, the indicative expression of the above-mentioned 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.

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, the term "multiple" means at least two, such as two, three, etc., unless otherwise specifically defined.

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 based on the circumstances.

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

Claims

1. An aerosol provision device comprising: a housing defining a containing chamber; a tubular component, arranged in the containing chamber, the tubular component comprising a hollow columnar structure configured to receive an article comprising an aerosol-generating substrate portion, the hollow columnar structure defining a heating region configured to accommodate the aerosol-generating substrate portion of the article; and an insulation structure; wherein the insulation structure extends to at least each of an axial extent and a circumferential extent of the heating region.

2. The aerosol provision device according to claim 1 , wherein the axial extent of the insulation structure is greater than the axial extent of the heating region.

3. The aerosol provision device according to claim 1 or claim 2, wherein the insulation structure extends to at least each of an axial extent and a circumferential extent of the columnar structure.

4. The aerosol provision device according to any one of claims 1 to 3, wherein the insulation structure comprises an inner housing, an outer housing and an intermediate layer, wherein the inner housing and the outer housing form a hollow structure, and the intermediate layer is arranged in the hollow structure.

5. The aerosol provision device according to claim 4, wherein the inner housing and/or the outer housing is a plastic layer; and/or the intermediate layer is an aerogel.

6. The aerosol provision device according to claim 4 or claim 5, wherein the thickness of the intermediate layer is at least 0.1 mm; and/or, the longitudinal dimension of the intermediate layer in the insulation structure extends at least beyond a first end of the heating region and at least beyond a second end of the heating region.

7. The aerosol provision device according to any one of claims 1 to 6, wherein a first gap is formed between an end of the insulation structure and a base of the containing chamber, wherein the first gap is in fluid communication with an external environment.

8. The aerosol provision device according to claim 7, comprising a protrusion extending in a longitudinal direction of the device and extending between an end of the insulation structure and the base of the containing chamber, so as to form the first gap.

9. The aerosol provision device according to claim 8, wherein the protrusion is one of a plurality of protrusions spaced apart along the circumferential direction of the insulation structure on the bottom wall of the containing chamber, the first gap being formed between adjacent protrusions.

10. The aerosol provision device according to claim 9, wherein the tubular component is supported on the base, the insulation structure being sleeved on an outer peripheral wall of the base; and a second gap is formed between an inner wall of the insulation structure and the outer peripheral wall of the base, wherein the second gap is in fluid communication with the first gap.

11. The aerosol provision device according to claim 10, comprising a rib extending along the length direction of the device and arranged between the outer peripheral wall of the base and the inner wall of the insulation structure, so that the second gap is formed between the inner wall of the insulation structure and the outer peripheral wall of the base.

12. The aerosol provision device according to claim 11 , wherein the rib is one of a plurality of ribs spaced along the circumferential direction of the base, wherein the second gap is formed between adjacent ribs of the plurality of ribs.

13. The aerosol provision device according to claim 10 or 11 , wherein the base has a chamber, and an insulation layer is arranged around an inner peripheral wall of the chamber.

14. The aerosol provision device according to any one of claims 7 to 13, comprising a third gap formed between the outer peripheral wall of the insulation structure and the housing, the third gap being in fluid communication with the first gap.

15. The aerosol provision device according to claim 14, comprising a spacer arranged between the housing and the insulation structure to form the third gap.

16. The aerosol provision device according to claim 14 or 15, wherein an end of the tubular component away from the heating region is mounted to the housing, and wherein the insulation structure is sleeved outside the extractor or the heating tube.

17. The aerosol provision device according to any of claims 14 to 16, wherein the outer peripheral wall of the housing comprises a hollowed-out structure, and the third gap is in fluid communication with the external environment through the hollowed-out structure.

18. The aerosol provision device according to any one of claims 1 to 17, wherein the housing material comprises at least one of the following: metal, polymeric material, natural material or composite material.

19. An aerosol provision system comprising an aerosol provision device according to any one of claims 1 to 18, and an article comprising an aerosol-generating material portion.

20. The aerosol provision system of claim 19, wherein a length of the heating region substantially corresponds with a length of the aerosol-generating material portion.