CN120836808A

CN120836808A - Aerosol generating products and aerosol supply systems

Info

Publication number: CN120836808A
Application number: CN202410524136.6A
Authority: CN
Inventors: 徐敏
Original assignee: Nicoventures Trading Ltd
Current assignee: Nicoventures Trading Ltd
Priority date: 2024-04-28
Filing date: 2024-04-28
Publication date: 2025-10-28
Also published as: WO2025228838A1

Abstract

The invention provides an aerosol-generating article and an aerosol-supply system. The aerosol-generating article comprises an aerosol-generating section comprising an aerosol-forming substrate and a heat-generating component, the aerosol-forming substrate forming an aerosol under heating, the heat-generating component comprising a circumferentially surrounding first portion and a second portion disposed within the first portion, the first portion and the second portion being circumferentially interconnected, and a wrapper surrounding the aerosol-forming substrate and the heat-generating component. The present disclosure can shorten the waiting time for re-suction and improve the suction mouthfeel by heating the air of the aerosol-generating section and the aerosol-forming substrate by the heat generating member.

Description

Aerosol-generating article and aerosol-supplying system

Technical Field

The present invention relates to the field of aerosol provision, and in particular to an aerosol-generating article and an aerosol provision system.

Background

The aerosol-supply system comprises an aerosol-supply device and an aerosol-generating article (such as a tobacco product), the aerosol-generating article being inserted into a heating chamber of the aerosol-supply device, and the aerosol being obtainable by heating the aerosol-generating article by the aerosol-supply device. The heating non-combustion technology enables the aerosol-generating product to release active ingredients in the carbonization stage before combustion, thereby reducing the generation of tar and harmful substances as much as possible.

The heating mode of the aerosol-supplying device is divided into external heating and internal heating, wherein the internal heating mode is generally that a needle-type or sheet-type heating element penetrates into a matrix section of the aerosol-generating product to enable heat to diffuse outwards from the center of the aerosol-generating product, and the external heating mode is generally that a cylindrical heating element is adopted to surround the matrix section of the aerosol-generating product to enable heat to diffuse inwards from the outside of the aerosol-generating product.

However, in both the external heating mode and the internal heating mode, the heat conduction requires a waiting time, but the hot air in the aerosol-generating product is taken away by the suction action, so that after each suction, the heat in the aerosol-generating product is insufficient, the aerosol-generating product can be raised to a temperature suitable for suction after a long enough waiting time, and if the waiting time is insufficient, the temperature and concentration of the aerosol sucked into the oral cavity of a user are low, and the taste is affected.

Disclosure of Invention

The present disclosure is directed to solving at least one of the technical problems existing in the prior art. The present disclosure provides an aerosol-generating article and an aerosol provision system that can reduce the waiting time for re-suction and improve the suction mouthfeel.

A first aspect of the present disclosure provides an aerosol-generating article comprising:

An aerosol-generating section comprising an aerosol-forming substrate and a heat-generating element, the aerosol-forming substrate forming an aerosol under heating, the heat-generating element comprising a circumferentially surrounding first portion and a second portion disposed within the first portion, the first portion and the second portion being circumferentially interconnected;

And the packing material is used for coating the aerosol forming substrate and the heating element.

Optionally, the heat generating element is located upstream of the aerosol-forming substrate and is configured to heat air upstream of the aerosol-forming substrate.

Optionally, the aerosol-generating section further comprises an end element upstream of the aerosol-forming substrate, the heat-generating element being provided at least one of:

Downstream of the end element;

an interior of the end member;

Nested with the end member.

Optionally, the first portion of the heat generating element surrounds the outer peripheral surface of the end member, and the second portion is inserted into the end member.

Optionally, the end element has a porosity of no more than 5 nanometers.

Optionally, the material of the end element is selected from at least one of polypropylene, cellulose acetate fiber and glass fiber.

Optionally, the first portion of the heat generating element is circumferentially surrounding the aerosol-forming substrate and the second portion of the heat generating element is embedded within the aerosol-forming substrate.

Optionally, the surface of the second portion forms an uneven surface.

Optionally, at least a second portion of the heat generating component comprises an electromagnetic induction material.

Optionally, the electromagnetic induction material includes iron, cobalt, nickel, gadolinium, erbium, aluminum and alloys thereof.

Optionally, the first portion comprises an insulating material.

Optionally, the insulating material comprises aerogel, paper, plastic or a composite thereof.

Optionally, the thermal conductivity of the first portion is less than 0.050w/m.k.

Optionally, the curie temperature of the heat generating element does not exceed 500 ℃.

Optionally, the wall thickness of the heating element is less than 0.5mm.

Optionally, the cross section of the heating element is in an "e" shape or a spiral shape.

Optionally, the aerosol-forming substrate has multiple sections and is arranged along the length direction, and each section of aerosol-forming substrate is correspondingly provided with a heating element.

A second aspect of the present disclosure provides an aerosol-supply system comprising an aerosol-supply device and the aerosol-generating article of the first aspect described above, the aerosol-supply device comprising:

a heating chamber for containing the aerosol-generating article, and

A coil for generating an electromagnetic field within the heating chamber.

The technical scheme disclosed by the disclosure at least has one or more of the following beneficial effects:

According to the air heating device, the heating piece is arranged on the aerosol generating section, the heating piece can heat the aerosol generating section, after the hot air in the aerosol generating product is taken away through the suction action, the heating piece can rapidly heat the surrounding air, the overall temperature of the air in the aerosol generating product is improved, the waiting time for re-suction is shortened, and the suction taste is improved. In addition, the heating element continuously heats in the aerosol generating product, so that the release of active ingredients of the aerosol forming substrate can be quickened, and the energy consumption is saved.

The first portion of the heat-generating component circumferentially surrounds the second portion, and the structural design provides the heat-generating component with sufficient support strength, either nested with the aerosol-forming substrate or the end member, or separately located upstream or downstream of the aerosol-forming substrate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It is to be understood by persons of ordinary skill in the art that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. Moreover, like numerals in the figures are used to designate like parts, wherein:

fig. 1 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 2 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a heat generating component of the aerosol-generating article of fig. 2;

fig. 4 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 5 is a schematic structural view of a heat generating component of the aerosol-generating article of fig. 4;

Fig. 6 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 7 is a schematic view of the structure of the aerosol-generating article of fig. 6 after the heat-generating component and the end-piece have been combined;

fig. 8 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 9 is a schematic structural view of the aerosol-generating article of fig. 8 after the heat-generating component and the end-piece have been combined;

fig. 10 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 11 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

fig. 12 is a schematic structural view of an aerosol-generating article provided by an embodiment of the present disclosure;

13-16 are schematic structural views of heat generating components provided by embodiments of the present disclosure;

fig. 17 is a schematic structural view of an aerosol provision system provided by an embodiment of the present disclosure.

Reference numerals illustrate:

10 aerosol-generating article, 110 aerosol-forming substrate, 120 heat-generating article, 121 first part, 122 second part, 130 wrapper, 140 end component, 150 flow-guiding section, 160 cool-down section, 170 mouthpiece section,

20 Aerosol provision device, 201 housing, 202 battery assembly, 203 controller, 204 heating chamber, 205 coil.

Detailed Description

Some embodiments of the invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.

As used herein, the term "supply system" is intended to encompass a system that delivers at least one substance to a user in use, and includes:

Combustible aerosol supply systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for self-wrapping or for self-manufacturing cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable materials);

A non-combustible aerosol supply system that releases compounds from an aerosol-generating material without burning the aerosol-generating material, such as an electronic cigarette, a tobacco heating product, and a mixing system, to generate an aerosol using a combination of aerosol-generating materials, and

An aerosol-free delivery system delivers at least one substance to a user orally, nasally, transdermally, or otherwise without forming an aerosol, including but not limited to lozenges, chewing gums, patches, products including inhalable powders, and oral products (e.g., oral tobacco including snuff or wet snuff), wherein the at least one substance may or may not include nicotine.

In accordance with the present disclosure, a "combustible" aerosol supply system is an aerosol supply system in which the constituent aerosol-generating materials of the aerosol supply system (or components thereof) are combusted or ignited during use in order to deliver at least one substance to a user.

In some embodiments, the supply system is a combustible sol supply system, such as a system selected from the group consisting of cigarettes, cigarillos, and cigars.

In some embodiments, the present disclosure relates to a component for use in a combustible sol supply system, such as a filter, a filter rod, a filter segment, a tobacco rod, an overflow, an aerosol modifier release component (e.g., a capsule, a thread, or a bead), or a paper (e.g., a plug wrap, a tipping paper, or a cigarette paper).

According to the present disclosure, a "non-combustible" aerosol supply system is an aerosol supply system in which the constituent aerosol-generating materials of the aerosol supply system (or components thereof) do not burn or ignite to deliver at least one substance to a user.

In some embodiments, the supply system is a non-combustible sol supply system, e.g., a powered non-combustible sol supply system.

In some embodiments, the non-combustible aerosol delivery system is an electronic cigarette, also known as a vapor smoke device or electronic nicotine delivery system (END), but it should be noted that the presence of nicotine in the aerosol generating material is not required.

In some embodiments, the non-combustible sol supply system is an aerosol generating material heating system, also referred to as a heated non-combustion system. One example of such a system is a tobacco heating system.

In some embodiments, the non-combustible aerosol supply system is a hybrid system that generates an aerosol using a combination of aerosol-generating materials, wherein one or more of the aerosol-generating materials may be heated. Each aerosol-generating material may be in the form of a solid, liquid or gel, for example, and may or may not contain nicotine. In some embodiments, the mixing system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may comprise, for example, a tobacco or non-tobacco product.

In general, a non-combustible sol supply system may include a non-combustible sol supply device and a consumable for use with the non-combustible sol supply device.

In some embodiments, the present disclosure relates to consumables that include an aerosol-generating material and are configured for use with a non-combustible sol supply device. These consumables are sometimes referred to in this disclosure as articles of manufacture.

In some embodiments, a non-combustible sol supply system, such as a non-combustible sol supply device thereof, may include a power source and a controller. The power source may be, for example, an electrical power source or an exothermic source. In some embodiments, the heat-generating source comprises a carbon matrix that may be energized to distribute power in the form of heat to the aerosol-generating material or the heat-transfer material in proximity to the heat-generating source.

In some embodiments, the non-combustible aerosol supply system may include a region for receiving a consumable, an aerosol generator, an aerosol generating region, a housing, a mouthpiece, a filter, and/or an aerosol modifier.

In some embodiments, a consumable for use with a non-combustible aerosol supply device may include an aerosol generating material, an aerosol generating material storage area, an aerosol generating material delivery component, an aerosol generator, an aerosol generating area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol modifier.

In some embodiments, the delivery system is an aerosol-free delivery system that delivers at least one substance orally, nasally, transdermally, or otherwise to a user without forming an aerosol, including but not limited to lozenges, chewing gums, patches, products including inhalable powders, and oral products (e.g., oral tobacco including snuff or wet snuff), wherein the at least one substance may or may not include nicotine.

In some embodiments, the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolized. Any of the materials may include one or more active components, one or more flavoring agents, one or more aerosol former materials, and/or one or more other functional materials, as appropriate.

In some embodiments, the substance to be delivered comprises an active substance. An 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, nootropic agents, psychoactive substances. The active substance may be naturally occurring or synthetically obtained. The active may include, for example, nicotine, caffeine, taurine, caffeine, vitamins (e.g., B6 or B12 or C), melatonin, or a component, derivative, or combination thereof. The active substance may comprise one or more components, derivatives or extracts of tobacco or other plants.

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

As described herein, the active substance may comprise or be derived from one or more plants or components, derivatives or extracts thereof. As used herein, the term "plant" includes any material derived from a plant, including, but not limited to, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, hulls, husks, and the like. Or the material may comprise an active compound naturally occurring in plants, which is obtained synthetically. The material may be in the form of a liquid, gas, solid, powder, dust, crushed particles, granules, pellets, chips, strips, flakes, or the like.

Examples of plants are tobacco, eucalyptus, star anise, hemp, cocoa, fennel, lemon grass, peppermint, spearmint, black leaf tea, chamomile, flax, ginger, ginkgo, hazelnut, hibiscus, bay, licorice, green tea, mate, orange peel, papaya, rose, sage, tea (e.g. green tea or black tea), thyme, clove, cinnamon, coffee, star anise (fennel), basil, bay leaf, cardamon, coriander, cumin, nutmeg, oregano, red pepper, rosemary, saffron, lavender, cinnamon, coffee, green tea (e.g. green tea or black tea) lemon peel, peppermint, juniper, elder, vanilla, wintergreen, perilla, turmeric root powder, sandalwood, coriander leaf, bergamot, orange flower, myrtle, blackcurrant, valerian, spanish sweet pepper, nutmeg, dammarlin, marjoram, olive, lemon mint, lemon basil, chive, carvacrol, verbena, tarragon, geranium, mulberry, ginseng, theanine, tetramethyl uric acid, maca, indian ginseng, damia, guanna tea, chlorophyll, monkey tree, or any combination thereof. The mint may be selected from the group consisting of spearmint, peppermint c.v., egypt, peppermint, basil c.v., peppermint c.v., spearmint, peppermint, pineapple, calyx mint, spearmint c.v., and apple mint.

In some embodiments, the active substance comprises or is derived from one or more plants or components, derivatives or extracts thereof, and the plant is tobacco. In some embodiments, the active substance comprises or is derived from one or more plants or components, derivatives or extracts thereof, and the plants are selected from eucalyptus, star anise, cocoa.

In some embodiments, the active substance comprises or is derived from one or more plants or components, derivatives or extracts thereof, and the plants are selected from the group consisting of camellia sinensis and fennel.

In some embodiments, the substance to be delivered comprises a flavoring agent. As used herein, the terms "flavoring" and "fragrance" refer to materials that can be used to create a desired taste, aroma, or other somatosensory in a product for an adult consumer, as permitted by local regulations. Which may include naturally occurring flavor materials, plants, extracts of plants, synthetically obtained materials, or combinations thereof (e.g., tobacco, licorice, hydrangea, eugenol, japanese magnolia leaf, chamomile, fenugreek, clove, maple, green tea, menthol, japanese mint, star anise (fennel), cinnamon, turmeric, indian spice, asian spice, herb, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, citrus, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruit, du Linbiao wine, paraguay whiskey, scotch whiskey, juniper, tequila, rum, spearmint, peppermint, lavender, aloe, cardamom, celery, bitter orange peel, nutmeg, sandalwood, bergamot, geranium, arabian tea, sorghum, nutmeg, papaya, and the like) betel leaf, coriander, pine, honey essence, rose oil, vanilla, lemon oil, orange flower, cherry blossom, cinnamon, coriander, cognac, jasmine, ylang, sage, fennel, mustard, green pepper, ginger, coriander, coffee, peppermint oil from any variety of mentha plants, eucalyptus, star anise, cocoa, lemon grass, red bean, flax, ginkgo leaf, hazelnut, hibiscus, bay, mate, orange peel, rose, tea (e.g., green tea or black tea), thyme, juniper, elder, basil, bay leaf, cumin, oregano, capsicum, rosemary, saffron, lemon peel, peppermint, steak plant, turmeric, coriander, myrtle, black currant, valerian, spanish pepper, nutmeg dried skin, damianne, marjoram, olive, orange peel, rose, tea (e.g., green tea or black tea) Lemon balm, lemon basil, northleontopod, carvi, verbena, tarragon, limonene, thymol, camphene), flavor enhancers, bitter taste receptor site blockers, sensory receptor site activators or stimulators, sugar and/or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and other additives such as charcoal, chlorophyll, minerals, plants, or breath fresheners. It may be a imitation, synthetic or natural ingredient or a mixture thereof. It may be in any suitable form, for example, a liquid such as an oil, a solid such as a powder, or a gas.

In some embodiments, the flavoring agent comprises menthol, spearmint, and/or peppermint. In some embodiments, the flavoring includes a flavoring component of cucumber, blueberry, citrus fruit, and/or raspberry. In some embodiments, the flavoring agent comprises eugenol. In some embodiments, the flavoring includes a flavoring component extracted from tobacco.

In some embodiments, the flavoring agent may include a sensate intended to achieve a somatosensory that is generally chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in lieu of the aromatic or gustatory nerve, and these may include agents that provide a heating, cooling, tingling, numbing effect. Suitable thermal agents may be, but are not limited to, vanillyl ether, and suitable coolants may be, but are not limited to, eucalyptol, WS-3.

An aerosol-generating material is a material that is capable of generating an aerosol, for example, when heated, irradiated or energized in any other manner. The aerosol-generating material may for example be in solid, liquid or gel form, which may or may not contain an active substance and/or a fragrance. 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. Amorphous solids are solid materials that can retain some fluid (e.g., liquid) within their interior. In some embodiments, the aerosol-generating material may comprise, for example, from about 50wt%, 60wt%, or 70wt% amorphous solids to about 90wt%, 95wt%, or 100wt% amorphous solids.

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 materials.

The aerosol former material may comprise one or more components capable of forming an aerosol. In some embodiments, the aerosol former material may include one or more of glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1, 3-butanediol, erythritol, meso-erythritol, ethyl vanillic acid, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, a mixture of diacetin, benzyl benzoate, benzyl phenyl acetate, glycerol tributyrate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

The one or more other functional materials may include one or more of pH adjusters, colorants, preservatives, binders, fillers, stabilizers, and/or antioxidants.

The material may be present on or in a carrier to form a matrix. The carrier may be or comprise, for example, paper, card, cardboard, recombinant material, plastic material, ceramic material, composite material, glass, metal or metal alloy. In some embodiments, the carrier 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 an aerosol-generating material, part or all of which is intended to be consumed by a user during use. The consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol-generating area, a housing, a wrapper, a mouthpiece, a filter, and/or an aerosol modifier. The consumable may also comprise an aerosol generator, such as a heater, which in use releases heat to cause the aerosol-generating material to generate an aerosol. The heater may for example comprise a combustible material, a material which is heatable by electrical conduction, or a susceptor.

A susceptor is a material that can be heated by penetration with a varying magnetic field (e.g., an alternating magnetic field). The susceptor may be an electrically conductive material such that its penetration by a varying magnetic field results in inductive heating of the heating material. The heating material may be a magnetic material such that penetration thereof by a varying magnetic field results in hysteresis heating of the heating material. The susceptor may be electrically conductive and magnetic such that the susceptor may be heated by two heating mechanisms. The device configured to generate a varying magnetic field is referred to herein as a magnetic field generator.

An aerosol-modifying agent is a substance typically located downstream of the aerosol-generating region that is configured to modify the generated aerosol, for example by altering the taste, flavor, acidity or another characteristic of the aerosol. The aerosol modifier may be disposed in an aerosol modifier release member operable to selectively release the aerosol modifier. For example, the aerosol modifier may be an additive or an adsorbent. For example, the aerosol modifiers may include one or more of fragrances, colorants, water, and carbon adsorbents. For example, the aerosol modifier may be a solid, a liquid, or a gel. The aerosol modifier may be in powder, wire or particulate form. The aerosol modifier may be free of filter material.

An aerosol generator is a device configured to cause the generation of an aerosol from an aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to subject the aerosol-generating material to thermal energy in order 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 generation of an aerosol 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 supply systems (which may also be referred to as vapor supply systems), such as nebulizers or e-cigarettes. In the following description, the term "e-cigarette" or "e-cigarette" may be used at times, but it will be understood that this term may be used interchangeably with aerosol supply system/device and electronic aerosol supply system/device. Furthermore, as is common in the art, the terms "aerosol" and "vapor" and related terms such as "evaporation," "aerosolization," and "aerosolization" are often used interchangeably.

Aerosol delivery systems (e-cigarettes) typically, although not always, comprise a modular assembly comprising a reusable device portion and replaceable (disposable/consumable) cartridge components. Typically, the replaceable cartridge component will include an aerosol-generating material and a vaporiser (which may be collectively referred to as a "vaporiser"), and the reusable device portion will include a power supply (e.g. a rechargeable power supply) and control circuitry. It will be understood that these different parts may include additional elements depending on the function. For example, the reusable device portion will typically include a user interface for receiving user input and displaying operating status features, and the replaceable cartridge device portion in some cases includes a temperature sensor for helping control temperature. The cartridge is electrically and mechanically coupled to the control unit for use, for example using threads, bayonet or magnetic coupling with suitably arranged electrical contacts. When the aerosol-generating material in the cartridge is exhausted, or when the user wishes to switch to a different cartridge having a different aerosol-generating material, the cartridge may be removed from the reusable component and a replacement cartridge attached in its place. Systems and devices conforming to this type of two-piece modular configuration may generally be referred to as two-piece systems/devices.

Electronic cigarettes typically have a generally elongated shape. To provide a specific example, some embodiments of the present disclosure will be considered to include such a generally elongated two-piece system employing disposable cartridges. However, it will be appreciated that the basic principles described herein may equally be applied to different configurations, such as single-piece systems or modular systems comprising more than two parts, refillable devices and single-use disposable articles, as well as other general shapes, for example based on so-called box-mode high performance devices that typically have a box-like shape. More generally, it will be understood that certain embodiments of the present disclosure are based on aerosol provision systems that are operatively configured to provide functionality in accordance with the principles described herein, and that the constructional aspects of the system configured to provide functionality in accordance with certain embodiments of the present disclosure are not of primary importance.

The structure of the aerosol-generating article and the aerosol-supply system of the present invention will be described in detail below by way of specific examples.

Referring to fig. 1-15, the present embodiment provides an aerosol-generating article comprising an aerosol-generating section and a wrapper 130, the aerosol-generating section comprising an aerosol-forming substrate 110 and a heat-generating member 120, the wrapper 130 encasing the aerosol-forming substrate 110 and the heat-generating member 120. The aerosol-forming substrate 110 forms an aerosol under heating, the heat generating component 120 comprises a circumferentially surrounding first portion 121 and a second portion 122 disposed within the first portion 121, the first portion 121 and the second portion 122 being circumferentially interconnected.

At least the second portion 122 of the heat generating element 120 comprises an electromagnetic inducing material, and the heat generating element 120 is capable of generating heat under the influence of an electromagnetic field when the aerosol-supplying device 20 heats the aerosol-generating article 10 by electromagnetic heating. The heat generating member 120 may be provided upstream of the aerosol-forming substrate 110, downstream of the aerosol-forming substrate 110, or in the aerosol-forming substrate 110. Depending on the direction of the air flow at the time of suction, the side from which the air flow flows is downstream of the aerosol-forming substrate 110, and the side from which the air flow flows is upstream of the aerosol-forming substrate 110. When the heat generating element 120 is located upstream of the aerosol-forming substrate 110, the heat generating element 120 may preheat the air that is about to enter the aerosol-forming substrate 110. When the heat generating element 120 is provided to the aerosol-forming substrate 110, the heat generating element 120 may heat the aerosol-forming substrate 110 and the air entering the aerosol-forming substrate 110. When the heat generating member 120 is located downstream of the aerosol-forming substrate 110, the heat generating member 120 may heat the aerosol of the mixed air flowing out of the aerosol-forming substrate 110. It can be seen that the temperature of the air flowing through the sol generating section can be raised by providing the heat generating member 120 in this embodiment, and the suction taste can be improved.

The material of the first portion 121 may be the same as or different from the material of the second portion 122. When the first part 121 and the second part 122 are made of different materials, the first part 121 and the second part 122 are fixed by adhesion or electrostatic adhesion.

Optionally, the second portion 122 of the heat generating component 120 includes an electromagnetic induction material, and the surface of the second portion 122 forms a concave-convex surface, so that the surface area of the second portion 122 is increased, the resistance is increased, and the heat generating efficiency of the second portion 122 is improved. In some examples, the first portion 121 of the heat generating member 120 does not include an electromagnetic induction material, and the second portion 122 includes an electromagnetic induction material and forms an uneven surface. In some examples, the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material, and the surface of the second portion 122 forms an uneven surface. In some examples, the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material, and the surfaces of the first portion 121 and the second portion 122 each form an uneven surface, but the density of the pattern constituted by the uneven surface on the second portion 122 is greater than the density of the pattern constituted by the uneven surface on the first portion 121.

Fig. 12 to 15 show the surface structure of the heat generating element 120 after being unfolded, wherein the surface of the second portion 122 is a concave-convex surface, and the surface of the first portion 121 is a smooth surface. The relief structures on the surface of the second portion 122 may be grooves, dots, pits, etched grooves, or metal printed embossments, which form a pattern such as a maze, lattice, checkerboard, honeycomb, etc.

In one possible implementation, referring to fig. 1-4, an aerosol-generating article 10 includes an aerosol-forming substrate 110, a wrapper 130, and a heat-generating component 120, the heat-generating component 120 being disposed upstream of the aerosol-forming substrate 110, the wrapper 130 surrounding the aerosol-forming substrate 110 and the heat-generating component 120. The second portion 122 of the heat generating member 120 includes an electromagnetic induction material, or the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material, or the second portion 122 of the heat generating member 120 includes an electromagnetic induction material and forms an uneven surface, or the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material and only the first portion 121 forms an uneven surface. The electromagnetic induction material comprises iron, cobalt, nickel, gadolinium, erbium, aluminum and alloys thereof. The curie temperature of the heat generating member 120 may be 500 ℃ or less, preferably 450 ℃ or less, more preferably 400 ℃ or less, more preferably 350 ℃ or less, more preferably 250 ℃ or less, more preferably 200 ℃ or less, more preferably 150 ℃ or less, more preferably 100 ℃ or less, more preferably 50 ℃ or less. The cross-sectional shape of the heat generating member 120 may be an "e" shape as shown in fig. 3 or a spiral shape as shown in fig. 4. The wall thickness of the first portion 121 and the second portion 122 of the heat generating member 120 may be the same or different. The wall thickness of the first portion 121 or the second portion 122 of the heat generating member 120 may be 0.5mm or less, preferably 0.2mm or less, more preferably 0.1mm or less, more preferably 0.08mm or less, more preferably 0.06mm or less, more preferably 0.04mm or less, more preferably 0.02mm or less.

In one possible implementation, the aerosol-generating section further comprises an end element 140, the end element 140 being provided upstream of the aerosol-forming substrate 110. Upstream of the aerosol-forming substrate 110, an end member 140 is provided, the end member 140 being adapted to receive debris from the aerosol-forming substrate 110 and to heat the aerosol-forming substrate 110 to produce a flow of tobacco tar, condensate, etc., which is prevented from entering the heating chamber 204 of the aerosol-supplying device 20.

The end member 140 is provided with an air flow channel through which external air may enter the aerosol-forming substrate 110. The air flow path in the end member 140 may be achieved by a structural design, such as by providing the end member 140 in a spiral wound configuration, with air flow through the gap between the spiral faces. The air flow passages in the end member 140 may also be formed from a specially constructed material, such as a porous material, for example, to provide air flow through the apertures in the material.

In some embodiments, the end member 140 is made of a porous material. The material of the end member 140 is selected from one or a combination of more of polypropylene, cellulose acetate fibers and glass fibers. The pores of the end element 140 are 5 nanometers or less, fresh air molecules having a diameter less than 5 nanometers can pass through, but other particles/aerosol molecules having a size exceeding 5 nanometers cannot pass through. The pores of the end member 140 are preferably 4 nanometers or less, more preferably 3 nanometers or less, more preferably 2 nanometers or less, and more preferably 1 nanometer or less.

The end member 140 and heat generating member 120 are both disposed upstream of the aerosol-forming substrate 110. Wherein the heat generating element 120 is disposed downstream of the end member 140, and wherein the interior of the end member 140 is nested with the end member 140. The second portion 122 of the heat generating member 120 includes an electromagnetic induction material, or the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material, or the second portion 122 of the heat generating member 120 includes an electromagnetic induction material and forms an uneven surface, or the first portion 121 and the second portion 122 of the heat generating member 120 each include an electromagnetic induction material and only the first portion 121 forms an uneven surface. The electromagnetic induction material comprises iron, cobalt, nickel, gadolinium, erbium, aluminum and alloys thereof. The curie temperature of the heat generating member 120 may be 500 ℃ or less, preferably 450 ℃ or less, more preferably 400 ℃ or less, more preferably 350 ℃ or less, more preferably 250 ℃ or less, more preferably 200 ℃ or less, more preferably 150 ℃ or less, more preferably 100 ℃ or less, more preferably 50 ℃ or less. The cross-sectional shape of the heat generating member 120 may be an "e" shape or a spiral shape. The wall thickness of the first portion 121 and the second portion 122 of the heat generating member 120 may be the same or different. The wall thickness of the first portion 121 or the second portion 122 of the heat generating member 120 may be 0.5mm or less, preferably 0.2mm or less, more preferably 0.1mm or less, more preferably 0.08mm or less, more preferably 0.06mm or less, more preferably 0.04mm or less, more preferably 0.02mm or less.

In some embodiments, the heat generating element 120 is nested with the end element 140, the first portion 121 of the heat generating element 120 surrounds the outer peripheral surface of the end element 140, and the second portion 122 is inserted into the end element 140. Referring to fig. 6, the heat generating element 120 has an "e" shape in cross section, the second portion 122 of the heat generating element 120 is embedded in the end element 140, and the first portion 121 extends out of the end element 140 and covers the outer side wall of the end element 140. Referring to fig. 8, the heat generating element 120 has a spiral cross section, the second portion 122 of the heat generating element 120 is embedded in the end element 140, and the first portion 121 extends out of the end element 140 and covers the outer side wall of the end element 140. Providing the heat generating element 120 nested with the end element 140 facilitates reducing the length of the aerosol-generating section compared to providing the heat generating element 120 separately from the end element 140.

In one possible implementation, the heat generating component 120 is provided to the aerosol-forming substrate 110. Specifically, the first portion 121 of the heat-generating component 120 is circumferentially surrounded by the aerosol-forming substrate 110, and the second portion 122 of the heat-generating component 120 is embedded within the aerosol-forming substrate 110. The first portion 121 and the second portion 122 are preferably composed of an electromagnetic induction material, and the surface of the second portion 122 is a concave-convex surface. The provision of the concavo-convex surface increases the surface area of the second portion 122, enabling the second portion 122 to generate more heat, and at the same time, a material having a relatively low curie temperature may be selected for the heat generating member 120, so that the wrapper 130 will not overheat, but will ensure a relatively high temperature inside the aerosol-forming substrate 110.

Wherein the curie temperature of the electromagnetic inducing material may be 500 ℃ or less, preferably 450 ℃ or less, more preferably 400 ℃ or less, more preferably 350 ℃ or less, more preferably 250 ℃ or less, more preferably 200 ℃ or less, more preferably 150 ℃ or less, more preferably 100 ℃ or less, more preferably 50 ℃ or less. The wall thickness of the first portion 121 and the second portion 122 of the heat generating member 120 may be the same or different. The wall thickness of the first portion 121 or the second portion 122 of the heat generating member 120 may be 0.5mm or less, preferably 0.2mm or less, more preferably 0.1mm or less, more preferably 0.08mm or less, more preferably 0.06mm or less, more preferably 0.04mm or less, more preferably 0.02mm or less.

In one possible implementation, the heat generating component 120 is provided to the aerosol-forming substrate 110. Specifically, the first portion 121 of the heat-generating component 120 is circumferentially surrounded by the aerosol-forming substrate 110, and the second portion 122 of the heat-generating component 120 is embedded within the aerosol-forming substrate 110. The second portion 122 includes an electromagnetic induction material, or the second portion 122 includes an electromagnetic induction material, and the surface of the second portion 122 is a concave-convex surface. The electromagnetic induction material comprises iron, cobalt, nickel, gadolinium, erbium, aluminum and alloys thereof. The curie temperature of the electromagnetic induction material may be 500 ℃ or less, preferably 450 ℃ or less, more preferably 400 ℃ or less, more preferably 350 ℃ or less, more preferably 250 ℃ or less, more preferably 200 ℃ or less, more preferably 150 ℃ or less, more preferably 100 ℃ or less, more preferably 50 ℃ or less. The first portion 121 includes an insulating material. The insulating material comprises aerogel, paper, plastic or a composite thereof. The thermal conductivity of the insulating material is 0.050w/m.k or less, preferably 0.040w/m.k or less, more preferably 0.030w/m.k or less, still more preferably 0.020w/m.k or less, still more preferably 0.010w/m.k or less. The wall thickness of the first portion 121 and the second portion 122 of the heat generating member 120 may be the same or different. The wall thickness of the first portion 121 or the second portion 122 of the heat generating member 120 may be 0.5mm or less, preferably 0.2mm or less, more preferably 0.1mm or less, more preferably 0.08mm or less, more preferably 0.06mm or less, more preferably 0.04mm or less, more preferably 0.02mm or less. The second portion 122 is used to heat the aerosol-forming substrate 110 in this embodiment, and the first portion 121 reduces heat transfer from the interior of the aerosol-forming substrate 110 to the exterior.

In some embodiments, the aerosol-generating segment comprises a length of aerosol-forming substrate 110, and the heat-generating element 120 is disposed on the aerosol-forming substrate 110. In other embodiments, the aerosol-generating segment comprises a plurality of segments of aerosol-forming substrate 110, the segments of aerosol-forming substrate 110 being arranged along the length of the aerosol-generating article 10, each segment of aerosol-forming substrate 110 being provided with a heat-generating component 120, which heat-generating components 120 may be identical or different. For example, the curie temperature of the heat generating element 120 corresponding to each segment of the aerosol-forming substrate 110 may be different, and when some heat generating elements 120 reach the curie temperature and stop generating heat during the heating of the aerosol-generating article 10 by the aerosol-supplying device 20, other heat generating elements 120 still can continue to generate heat, so as to realize the segmented heating of the aerosol-forming substrate 110.

In some embodiments, the aerosol-generating article 10 comprises at least one segment of aerosol-forming substrate 110 and a heat-generating component 120 nested with each segment of aerosol-forming substrate 110, the end of the aerosol-generating article 10 being devoid of end elements 140, as shown in fig. 9.

In some embodiments, the aerosol-generating article 10 comprises an end element 140, at least one segment of aerosol-forming substrate 110, and a heat-generating component 120 disposed nested with each segment of aerosol-forming substrate 110, the end element 140 being disposed at an upstream end of the aerosol-generating article 10, as shown in fig. 10.

In some embodiments, the aerosol-generating article 10 comprises at least one segment of aerosol-forming substrate 110 and a heat-generating component 120 disposed nested with each segment of aerosol-forming substrate 110, and further comprises an end element 140 and a heat-generating component 120 disposed in correspondence with the end element 140, the end element 140 being disposed at an upstream end of the aerosol-generating article 10, the heat-generating component 120 being disposed upstream, downstream of the end element 140 or nested with the end element 140. As shown in fig. 11, both the aerosol-forming substrate 110 and the end member 140 are provided with a heat generating element 120.

In this embodiment, the heating element 120 is provided in the aerosol-generating section, the heating element 120 can heat the aerosol-generating section, and after the hot air in the aerosol-generating product 10 is taken away by the suction action, the heating element 120 can rapidly heat the surrounding air, so as to raise the overall temperature of the air in the aerosol-generating product 10, shorten the waiting time for re-suction, and improve the suction taste.

The present embodiment also provides an aerosol-supply system comprising an aerosol-supply device 20 and the aerosol-generating article 10 described above. The aerosol provision device 20 comprises a housing 201, and a heating module and an energy supply module arranged in the housing 201, wherein the housing 201 is provided with a receiving cavity, the heating module comprises a coil 205 and a heating element, the heating element is arranged in the receiving cavity and is made of electromagnetic materials, the heating element is made of electromagnetic materials, the coil 205 is arranged around the heating cavity 204, the energy supply module comprises a battery assembly 202 and a controller 203, and the battery assembly 202 and the controller 203 are respectively electrically connected with the coil 205. Referring to fig. 16, the aerosol-generating article 10 includes a wrapper 130, an aerosol-generating section, a flow guiding section 150, a cooling section 160 and a nozzle section 170, wherein the aerosol-generating section, the flow guiding section 150, the cooling section 160 and the nozzle section 170 are disposed along the length direction of the aerosol-generating article 10, and the wrapper 130 wraps the aerosol-generating section, the flow guiding section 150, the cooling section 160 and the nozzle section 170. As the user draws the aerosol-generating article 10, the airflow passes through the aerosol-generating section, the flow-directing section 150, the temperature-reducing section 160, and then out of the mouthpiece section 170 in that order. The structure of the aerosol-generating section is referred to above and is not described in detail herein.

The aerosol-generating article 10 is disposed on the aerosol-supplying device 20, so that the aerosol-generating section of the aerosol-generating article 10 is accommodated in the heating chamber 204, the battery assembly 202 is controlled by the controller 203 to supply power to the coil 205, an electromagnetic field is generated after the coil 205 is energized, the heating element heats and conducts heat from the outside to the inside of the aerosol-generating article 10, and at the same time, the heating element 120 of the aerosol-generating section heats under electromagnetic action to heat the air and the aerosol-forming substrate 110 in the aerosol-generating article 10, and the inside and the outside of the aerosol-generating article 10 are heated simultaneously, which is beneficial to reducing the temperature difference of each region of the aerosol-generating article 10 and improving the smoking taste.

Referring to fig. 17, in the case where the aerosol-forming substrate 110 is provided with the heat generating member 120, since the heat generating member 120 is capable of generating heat in an electromagnetic field to heat the aerosol-forming substrate 110, the heat generating member on the aerosol-supplying device 20 may be omitted, and the receiving cavity of the housing 201 constitutes the heating cavity 204 for receiving the aerosol-generating article 10. When the aerosol-generating article 10 is received by the aerosol-supplying device 20, the coil 205 is energized to heat the heat-generating element 120, and the heat-generating element 120 heats the aerosol-forming substrate 110 from inside the aerosol-generating article 10 to generate an aerosol.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. An aerosol-generating article, comprising:

an aerosol-generating section, the aerosol-generating section comprising an aerosol-forming substrate and a heating element; the aerosol-forming substrate forms an aerosol under heating conditions; the heating element comprises a circumferentially surrounding first portion and a second portion disposed within the first portion; the first portion and the second portion are circumferentially connected to each other;

The packaging material covers the aerosol-forming matrix and the heating element.

2. An aerosol-generating article according to claim 1, wherein the heating element is located upstream of the aerosol-forming substrate and is configured to heat the air upstream of the aerosol-forming substrate.

3. An aerosol-generating article according to claim 2, wherein the aerosol-generating section further comprises an end element, the end element being located upstream of the aerosol-forming substrate, and the heating element being provided at at least one of the following locations:

downstream of said end element;

the interior of the end member;

Nested with the end elements.

4. The aerosol generating article according to claim 3, wherein the first portion of the heating element surrounds the outer circumference of the end element, and the second portion is inserted into the end element.

5. An aerosol-generating article according to claim 3, wherein the pores of the end element are no larger than 5 nanometers.

6. The aerosol-generating article of claim 3, wherein the material of the end element is selected from at least one of polypropylene, cellulose acetate fiber, and glass fiber.

7. An aerosol-generating article according to claim 1, characterized in that a first portion of the heating element circumferentially surrounds the aerosol-forming substrate, and a second portion of the heating element is embedded in the aerosol-forming substrate.

8. The aerosol-generating article according to any one of claims 1 to 7, wherein the surface of the second portion forms a concave-convex surface.

9. An aerosol-generating article according to claim 1, wherein at least a second portion of the heating element comprises an electromagnetic induction material.

10. The aerosol-generating article of claim 9, wherein the electromagnetic induction material comprises iron, cobalt, nickel, gadolinium, erbium, aluminum, and alloys thereof.

11. An aerosol-generating article according to claim 9, wherein the first portion comprises a thermally insulating material.

12. An aerosol-generating article according to claim 11, wherein the thermally insulating material comprises aerogel, paper, plastic or a composite thereof.

13. An aerosol-generating article according to claim 11, wherein the thermal conductivity of the first portion is less than 0.050 W/m.K.

14. The aerosol-generating article of claim 9, wherein the Curie temperature of the heating element does not exceed 500°C.

15. An aerosol-generating article according to claim 1, wherein the wall thickness of the heating element is less than 0.5 mm.

16. The aerosol-generating article according to claim 1, wherein the cross-section of the heating element is "e"-shaped or spiral-shaped.

17. An aerosol-generating article according to claim 2, wherein the aerosol-forming substrate has multiple sections arranged along the length direction, and each section of the aerosol-forming substrate is correspondingly provided with a heating element.

18. An aerosol supply system, comprising an aerosol supply device and the aerosol-generating article according to any one of claims 1 to 17; the aerosol supply device comprising:

a heating chamber for housing the aerosol-generating article; and

A coil for generating an electromagnetic field within the heating chamber.