CN119366695A

CN119366695A - An aerosol generating product

Info

Publication number: CN119366695A
Application number: CN202310934474.2A
Authority: CN
Inventors: 倪军; 李航; 魏明文; 汤建国; 金祖涛
Original assignee: Seymour International Holdings Ltd
Current assignee: Seymour International Holdings Ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2025-01-28

Abstract

The aerosol-generating product comprises a wrapping layer, a medium section and a functional section, wherein the medium section is of an integrated structure, at least one air passage hole is formed in the medium section, the functional section is arranged at one end of the medium section along a first direction, the wrapping layer wraps at least part of the medium section and at least part of the circumferential outer surface of the functional section, the portion, protruding out of the medium section along the first direction, of the wrapping layer is a first wrapping section, the functional section is at least partially arranged in the first wrapping section, and the first wrapping section and/or the functional section define an air inlet channel. In the suction process of the aerosol generating product, air in the external environment is introduced from the air inlet channel instead of directly introduced from the medium section, so that the probability of difference of aerosol components generated due to large atomization temperature change of the medium section caused by direct introduction of the air in the external environment from the medium section is reduced, and the aerosol can be cooled, so that the use temperature of the aerosol is more suitable.

Description

Aerosol-generating article

Technical Field

The application relates to the technical field of smoking articles, in particular to an aerosol-generating article.

Background

Smoking articles include smoking articles that form an aerosol by ignition and smoking articles that form an aerosol by heating without combustion, wherein in a typical heated without combustion smoking article, an aerosol-generating substrate is included that volatilizes upon heating to generate an aerosol, the aerosol-generating substrate is heated with an external heat source to just heat it to a degree sufficient to emit a flavour, the aerosol-generating substrate does not burn, but rather by loading an aerosol, the aerosol is released by high temperature heating when in use, forming a smoke.

In the related technology, in the sucking process, air in the external environment directly enters through the medium section, so that the temperature change of the medium section is large, the cracking reaction of the aerosol generating matrix is unstable, and the generated aerosol components are different, so that the use experience of a user is influenced.

Disclosure of Invention

In view of this, embodiments of the present application desire to provide an aerosol-generating article, in which air in the external environment does not directly pass through the medium segment, and the atomization consistency is high, so that the user experience is better.

To achieve the above object, an embodiment of the present application provides an aerosol-generating article comprising:

the medium section is used for generating aerosol, is of an integrated structure, and is internally provided with at least one air passage hole, and the air passage hole penetrates through at least one end of the medium section along a first direction;

the functional section is arranged at one end of the medium section along the first direction;

A wrapping layer wrapping at least part of the medium section and at least part of the circumferential outer surface of the functional section;

the part of the wrapping layer protruding out of the medium section along the first direction is a first wrapping section, the functional section is at least partially arranged in the first wrapping section, and the first wrapping section and/or the functional section define an air inlet channel.

In one embodiment, the first wrapping section has an air inlet aperture therethrough that forms an inlet to the air intake passage.

In one embodiment, the functional section is formed with a vent hole, one end of the vent hole penetrates through the outer circumferential surface of the functional section, the other end of the vent hole extends toward the inside of the functional section, the vent hole is in butt joint with the air inlet hole, and the vent hole forms a part of the air inlet channel.

In one embodiment, the functional section is of a hollow tubular structure and is provided with an inner wall surface and an outer wall surface, a hollow channel is formed in the periphery of the inner wall surface, a vent hole is formed in the side wall of the functional section, the vent hole at least penetrates through the outer wall surface, the vent hole is in butt joint with the air inlet hole, and the vent hole forms a part of the air inlet channel.

In one embodiment, the structure between the inner wall surface and the outer wall surface is a solid structure, and the vent hole penetrates through the inner wall surface and the outer wall surface.

In one embodiment, the circumferential surface of the functional section is provided with an air channel groove passing through at least one end of the functional section, the gap between the air channel groove and the first wrapping section constituting a part of the air intake channel.

In one embodiment, the functional section extends beyond the wrapping layer at an end remote from the media section.

In one embodiment, the dielectric segment is spaced from the functional segment to form a cavity.

In one embodiment, the first wrapping section is provided with an air inlet hole corresponding to the side wall of the cavity in a penetrating manner, and the air inlet hole forms an inlet of the air inlet channel.

In one embodiment, the functional section is of an integral structure, and the functional section is provided with at least one air guide channel inside, and the air guide channel penetrates through at least one end of the functional section along the first direction.

In one embodiment, at least a portion of the air guide channel communicates with the airway aperture.

In one embodiment, the medium section and the functional section are cylinders with consistent outer diameters and coaxially arranged, and the first direction is the axial direction of the medium section and the functional section.

According to the aerosol generating product provided by the embodiment of the application, the air inlet channel is arranged on the first wrapping section, or the air inlet channel is arranged on the functional section, or the air inlet channel is defined by the first wrapping section and the functional section, in the suction process, air in the external environment is taken in from the air inlet channel, and aerosol generated by atomizing the medium section is wrapped and flows out of the functional section, and does not directly enter the medium section, so that the temperature consistency of the medium section in atomizing is improved, the probability of difference of aerosol components caused by large change of the atomizing temperature of the medium section due to the fact that the air in the external environment directly enters the medium section is reduced, the functional section can guide out air flow on one hand, and on the other hand, the temperature of the aerosol can be reduced, so that the use temperature of the aerosol is more suitable, the use experience of a user is improved, and the structural arrangement of the aerosol generating product is reasonable and reliable.

Drawings

Fig. 1 is a schematic structural view of an aerosol-generating article according to a first embodiment of the application;

Fig. 2 is a cross-sectional view of the aerosol-generating article shown in fig. 1, wherein the dashed arrow indicates the flow direction of the airflow in the aerosol-generating article;

fig. 3 is a schematic structural view of an aerosol-generating article according to a second embodiment of the application;

fig. 4 is a schematic cross-sectional view of the aerosol-generating article shown in fig. 3, wherein the dashed arrow indicates the flow direction of the airflow in the aerosol-generating article;

Fig. 5 is a schematic cross-sectional view of an aerosol-generating article according to a third embodiment of the application;

fig. 6 is a schematic cross-sectional view of an aerosol-generating article according to a fourth embodiment of the application;

fig. 7 is a schematic cross-sectional view of an aerosol-generating article according to a fifth embodiment of the application;

fig. 8 is a schematic cross-sectional view of an aerosol-generating article according to a sixth embodiment of the application;

fig. 9 is a schematic cross-sectional view of an aerosol-generating article according to a seventh embodiment of the application.

Description of the reference numerals

10. Medium section, 10a, air passage hole, 20, functional section, 20a, air guide passage, 20b, ventilation hole, 20c, hollow passage, 20d, air passage groove, 30, wrapping layer, 31, first wrapping section, 31a, air inlet hole, 32, second wrapping section, 100, aerosol-generating article, 100a, cavity.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present application and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as unduly limiting the present application.

In the description of the present application, the "first direction" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1 and 2, and it should be understood that these orientation terms are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

An embodiment of the present application provides an aerosol-generating article, see fig. 1-9, comprising a wrapper 30, a media segment 10 and a functional segment 20. The functional section 20 is disposed at one end of the medium section 10 along the first direction, and the wrapping layer 30 wraps the circumferential outer surfaces of the medium section 10 and the functional section 20. That is, the media segment 10 and the functional segment 20 are located at both ends of the aerosol-generating article 100, respectively, wherein the media segment 10 is the distal lip end of the aerosol-generating article 100 and the functional segment 20 is the proximal lip end of the aerosol-generating article 100.

The proximal lip end refers to the end of the aerosol-generating article 100 that is closer to the user when the user is using the aerosol-generating article 100, and the distal lip end refers to the end of the aerosol-generating article 100 that is farther from the user when the user is using the aerosol-generating article 100.

The functional segment 20 can be used for cooling the aerosol, the functional segment 20 being for example a cooling segment.

Of course, the functional segment 20 may also have the function of supporting and/or filtering and/or adjusting the resistance to suction.

The aerosol-generating article 100 relies on the media segment 10 to generate an aerosol, the functional segment 20 not being used to generate an aerosol.

It should be noted that the aerosol-generating article 100 according to the embodiment of the present application may be adapted to perform smoking by ignition or by heating without combustion. In the present embodiment, the aerosol-generating article 100 is described by way of example in which the smoking is performed in a manner suitable for heating without combustion.

The aerosol-generating article 100 is for use with an aerosol-generating device.

The media segment 10 is used to generate an aerosol for inhalation by a user when heated.

In an embodiment of the application, the media segments 10 are generally cylindrical. The column shape may be a column shape (i.e., a circular cross-sectional shape), a prismatic shape (i.e., a polygonal cross-sectional shape), an elliptical column shape (i.e., an elliptical cross-sectional shape), etc., without limitation.

The medium section 10 and the functional section 20 are of separable structures, and are not connected together through a mechanical structure, a physical structure or an adhesive, but can be contacted, namely the medium section 10 and the functional section 20 are of combined structures, so that different medium sections 10 and different functional sections 20 can be reasonably matched to meet different sucking demands of customers.

Illustratively, the media segment 10 is a particulate combination, also referred to as a powder combination, and is a reconstituted tobacco media, such as a reconstituted tobacco media containing components such as smoke agent, tobacco, and the like. The media segment 10 is a unitary structure that may be formed, for example, by an extrusion, injection molding, or die casting process. Extrusion molding is a processing method in which a raw material mixture is added into an extruder, and the raw material is pushed forward by a screw through the action between a barrel of the extruder and the screw, and continuously passes through a die of a discharge hole of the extruder to prepare various section products or semi-products. The dielectric structure formed by extrusion molding is strip-shaped. Thus, the medium section 10 is heated, pumped or stopped to be heated and is an integrated medium, the phenomenon of disintegration and dropping is not easy to occur, and the problems that the flaky, filiform or scattered particle medium section 10 in the prior art has the problems of loose flakes, filiform components, falling of particle components and difficult cleaning and the components are not uniform are solved.

The medium section 10 has at least one air passage hole 10a inside, and referring to fig. 2, 4 to 9, the air passage hole 10a penetrates at least one end of the medium section 10 in the first direction. The airway aperture 10a is used to direct aerosol to the air channel 20a.

The medium segment 10 has at least one air passage hole 10a therein, and the medium segment 10 may have one air passage hole 10a therein, or may have a plurality of air passage holes 10a therein.

It should be noted that, the plurality of the embodiments of the present application refers to two or more.

In some embodiments, the airway aperture 10a is closed through the same end of the media segment 10 in the first direction, and the other end is closed.

In other embodiments, a portion of the airway holes 10a pass through one end of the media segment 10 in the first direction and another portion of the airway holes 10a pass through the other end of the media segment 10 in the first direction.

In still other embodiments, referring to fig. 2 and 4-9, each of the air passage holes 10a extends through the media segment 10 at both ends thereof in the first direction, i.e., the air passage holes 10a extend in the first direction of the media segment 10, and air flow may flow from one end of the media segment 10 to the other end of the media segment 10 through the air passage holes 10 a. Preferably, the air passage holes 10a are parallel to the central axis of the media segment 10.

The inner surface of the medium section 10 is formed by the wall of the air passage hole 10a, the inner surface area of the medium section 10 can be increased by the air passage hole 10a, heat transfer is facilitated, and heating efficiency is improved. In addition, the medium section 10 generates aerosol through heating, the aerosol is collected in the air passage hole 10a, and is conveyed to the suction end under the action of suction negative pressure, and the air passage hole 10a can reduce suction resistance of suction of a user and promote user experience. It should be noted that, the suction resistance is positively related to the flow resistance of the aerosol, the smaller the flow resistance of the aerosol in the medium segment 10 is, the smaller the suction resistance experienced by the user is, and the larger the flow resistance of the aerosol in the medium segment 10 is, the larger the suction resistance experienced by the user is.

It should be noted that the shape of the air passage hole 10a is not limited herein, and the cross-sectional shape of the air passage hole 10a in a plane perpendicular to the first direction of the medium section 10 includes, but is not limited to, a circle (as in fig. 4 to 9), an ellipse, a racetrack, or a polygon, wherein the polygon includes a regular or irregular polygon.

The runway-shaped track is similar to a track and field runway, and is formed by alternately connecting two semicircles and two parallel straight edges.

Wherein the cross-sectional shape of the air passage hole 10a refers to the cross-sectional shape of the air passage hole 10a taken along a plane perpendicular to the first direction of the media segment 10.

In addition, the cross-sectional shapes of the air passage holes 10a may be identical, or the cross-sectional shapes of at least two air passage holes 10a may be different, for example, the cross-sectional shape of at least one air passage hole 10a may be circular, and the cross-sectional shape of at least one air passage hole 10a may be polygonal.

An embodiment of the present application also provides an aerosol-generating device for use with the sol-generating article provided by an embodiment of the present application, the aerosol-generating device comprising a heating assembly (not shown) for heating the media segment 10 to generate an aerosol.

The heating means of the heating component includes, but is not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc. The heat convection mode is to transfer heat, namely, a heating component is not in contact with the medium section 10, the heating component firstly heats air, and then the hot air is used for baking and heating the medium section 10. Heat conduction refers to the heating element contacting the media segment 10 and conducting heat to the media segment 10. Illustratively, resistive, electromagnetic heating primarily transfers heat to the media segment 10 in a thermally conductive or convective form. Infrared heating, microwave heating or laser heating primarily transfers heat to the media segment 10 in the form of thermal radiation. I.e. the heating assembly may heat the media segment 10 by one or more of heat conduction, heat convection and heat radiation.

In the embodiment of the present application, the first direction does not refer to the direction in which the appearance profile of the medium segment 10 is longest. Specifically, the direction in which the aerosol-generating article 100 is inserted into the receiving compartment, and the direction in which the aerosol-generating article 100 is removed from the receiving compartment, are all parallel to the first direction. The length of the media segment 10 in the first direction may be longer, or shorter, or the same as the length in the other directions.

For example, when the outer contour of the media segment 10 is cylindrical, the first direction is the axial direction of the media segment 10, and it should be noted that, even when the axial length of the media segment 10 is smaller than the diameter thereof, the first direction of the media segment 10 is still the axial direction. For another example, when the exterior profile of the media segment 10 is rectangular, the first direction is still the direction defined above, i.e., the direction in which the cartridge takes out the aerosol-generating article 100, and the first direction of the media segment 10 may be any one of the length, width, and height of the rectangular.

The wrapping layer 30 wraps the circumferential outer surfaces of the medium section 10 and the functional section 20, the wrapping layer 30 provides installation space and protection for the medium section 10 and the functional section 20, the damage probability of the medium section 10 and the functional section 20 is reduced, the heat generated by heating the medium section 10 is not directly transferred to a user, and the use reliability of the aerosol generating product 100 is improved.

The wrapping layer 30 wraps the circumferential outer surfaces of the medium section 10 and the functional section 20, which may be that the wrapping layer 30 wraps all the circumferential outer surfaces of the medium section 10 and the functional section 20, or that the wrapping layer 30 wraps part of the circumferential outer surfaces of the medium section 10 and the functional section 20.

It will be appreciated that the material of the wrapper 30 has a structural strength to reduce the chance of deformation of the aerosol-generating article 100 during use due to the pressure of the air flow.

The specific material of the wrapping layer 30 is not limited, and may be, for example, one or more of fiber paper, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly (butyleneadipate-co-terephthalate), and the like.

It should be noted that, when the wrapping layer 30 wraps the entire circumferential outer surface of the functional section 20, the user may directly hold the wrapping layer 30 to suck aerosol, and when the wrapping layer 30 wraps a portion of the circumferential outer surface of the functional section 20, the user may directly hold the functional section 20 to extend beyond the portion outside the wrapping layer 30 to suck aerosol, and of course, the user may also cover the functional section 20 with a suction nozzle to suck aerosol through the suction nozzle.

The functional segment 20 has an air guide channel 20a, the air guide channel 20a being in communication with the air inlet channel, the air channel hole 10a being for guiding aerosol to the air guide channel 20a, the air guide channel 20a being for guiding air flow for inhalation by a user.

Referring to fig. 2 to 9, the portion of the wrapping layer 30 protruding from the medium section 10 along the first direction is a first wrapping section 31, the functional section 20 is disposed in the first wrapping section 31, the first wrapping section 31 and/or the functional section 20 define an air inlet channel, and the air guide channel 20a is communicated with the air inlet channel.

That is, when sucking, the medium segment 10 is atomized by heating, and the air in the external environment enters the air guide channel 20a through the air inlet channel, and the aerosol generated by the atomization is wrapped and sucked by the user. That is, the air in the external environment does not directly enter the medium segment 10, so that the temperature consistency of the medium segment 10 during atomization can be improved, the functional segment 20 can guide out the air flow for the user on one hand, and on the other hand, the temperature of the aerosol can be reduced, so that the temperature of the aerosol flowing out of the functional segment 20 is suitable, and the aerosol can be better used by the user.

The first wrapping segment 31 and/or the functional segment 20 define an air intake channel, which means that the first wrapping segment 31 may define an air intake channel, the functional segment 20 may define an air intake channel, or the first wrapping segment 31 and the functional segment 20 may jointly define an air intake channel.

It should be noted that, in the embodiment of the present application, the end of the medium segment 10 away from the functional segment 20 is in a closed state, so that a sufficient negative pressure can be generated to extract the aerosol for the user during the suction. The closed state includes a completely airtight condition, i.e., no oxygen, and also includes a condition of a small amount of ventilation, i.e., low oxygen.

The end of the medium section 10 far away from the functional section 20 is in a closed state, namely, the end of the medium section 10 far away from the functional section 20 is self-closed, that is, the medium section 10 is in a closed state at the end far away from the functional section 20 by means of the structure of the medium section 10, or the medium section 10 is in a closed state at the end far away from the functional section 20 by means of the assembly butt joint of any structure on the aerosol generating device, so that the medium section 10 can be in a negative pressure state during suction so as to facilitate the extraction of aerosol, in addition, the end of the medium section 10 far away from the functional section 20 is in a closed state, the probability that residues generated by atomization of the medium section 10 flow out to pollute a heating assembly or other structures of the aerosol generating device can be reduced, and cleaning of the aerosol generating product 100 is simpler and more convenient.

It will be appreciated that, in some embodiments, referring to fig. 2 to 9, the wrapping layer 30 further includes a second wrapping section 32, the medium section 10 is disposed in the second wrapping section 32, the first wrapping section 31 and the second wrapping section 32 together form the wrapping layer 30, and the first wrapping section 31 and the second wrapping section 32 may be integrally formed, that is, the wrapping layer 30 may be integrally formed, and the first wrapping section 31 and the second wrapping section 32 may also be separate components and form the wrapping layer 30 through assembly.

According to the aerosol-generating product provided by the embodiment of the application, the air inlet channel is arranged on the first wrapping section 31, or the air inlet channel is arranged on the functional section 20, or the air inlet channel is defined by the first wrapping section 31 and the functional section 20 together, and is communicated with the air guide channel 20a of the functional section 20, in the sucking process, air in the external environment is introduced from the air inlet channel, and aerosol atomized and generated by wrapping the medium section 10 flows out of the functional section 20, but not directly introduced through the medium section 10, so that the temperature consistency of the medium section 10 during atomization is improved, the probability of difference of aerosol components generated due to large atomization temperature change of the medium section 10 caused by direct introduction of the air in the external environment from the medium section 10 is reduced, the functional section 20 can guide out air flow, and on the other hand, the aerosol can be cooled, so that the use temperature of the aerosol is more suitable, the use experience of a user is improved, and the structural arrangement of the aerosol-generating product 100 is reasonable and reliable.

In the related art, the smoking material of the smoking article is, for example, granular, cut tobacco, sheet, etc., and is formed by integral filling, rolling or gathering molding. When a tobacco shred type smoking article is matched with a central heat source, the central material of the smoking article is easy to move upwards, so that a phenomenon of 'blocking' is caused. The granular fuming products are easy to have poor uniformity of the form of filling granules in the production and processing process, easy to fall off the seal in the use process, easy to absorb moisture and have the phenomenon of sticking and caking with the appliance.

The medium section 10 provided in the embodiment of the present application is an integral structure, for example, the integral structure can be formed by extrusion, die casting or injection molding, so as to improve the uniformity of the density of the medium section 10 and improve the stability of aerosol release and suction. In addition, the mass of the media segment 10 in the integral structure is relatively uniform, and the heating assembly does not squeeze the structure around the media segment 10 when heating the media segment 10, so that the media segment 10 maintains a relatively uniform matrix density. Furthermore, the integral structure of the medium section 10 is not easy to be stuck and agglomerated with the aerosol generating device.

The specific composition of the media segment 10 is not limited herein, and in one embodiment, the media segment 10 may include, for example, a plant component, an auxiliary component, a smoke agent component, an adhesive component, a flavor component, and the like.

The plant component is used to generate an aerosol when heated. The adjunct ingredient is used to provide skeletal support for the plant ingredient. The smoke agent component is used to produce smoke when heated. The binder component is used to bind the raw material components. The fragrance component is used to provide a characteristic fragrance. Thus, the plant components and the smoke agent components can ensure the aerosol generation amount, and the spice components can promote the release of aroma in the sucking process, so that the user experience is improved. The auxiliary components not only can improve the fluidity of the mixed materials, but also can enable the medium section 10 to be in a porous structure so as to facilitate the extraction and flow of aerosol. The binder component ensures that the plant component and the auxiliary component and the like form a stable mixture, avoiding loosening of the structure.

Illustratively, the plant component may be one or more of tobacco leaf raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and powder formed by crushing fragrant plants. The plant components are core sources of fragrance, endogenous substances in the plant components can generate physiological satisfaction for users, and endogenous substances such as alkaloids enter human blood to promote the pituitary gland to generate dopamine, so that the physiological satisfaction is obtained.

Illustratively, the adjunct ingredient can be one or a combination of inorganic fillers, lubricants, emulsifiers. Wherein the inorganic filler comprises one or more of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talcum powder and diatomite. The inorganic filler can provide framework support for plant components, and at the same time, the inorganic filler also has micropores, so that the porosity of the medium section 10 can be improved, and the aerosol release rate is improved. The lubricant comprises one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity of the plant component powder, reduce the friction force among the plant component powder, ensure that the overall density of the plant component powder distribution is more uniform, reduce the pressure required in the extrusion molding process and reduce the abrasion of the die. The emulsifier comprises one or more of polyglycerol fatty acid ester, tween-80 and polyvinyl alcohol. The emulsifier can slow down the loss of the fragrant substances in the storage process to a certain extent, increase the stability of the fragrant substances and improve the sensory quality of the product.

Illustratively, the smoke agent component may include one or more combinations of monohydric alcohols (e.g., menthol), polyhydric alcohols (e.g., propylene glycol, glycerol, triethylene glycol, 1, 3-butylene glycol, and tetraethylene glycol), esters of polyhydric alcohols (e.g., glyceryl triacetate, triethyl citrate, glyceryl diacetate mixture, triethyl citrate, benzyl benzoate, tributyrin), monocarboxylic acids, dicarboxylic acids, polycarboxylic acids (e.g., lauric acid, myristic acid), or aliphatic esters of polycarboxylic acids (e.g., dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1, 3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, termitidine (Triactin), meso-erythritol, glyceryl diacetate mixture, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, lauryl acetate).

Illustratively, the binder component acts to bind the component materials, e.g., powders, liquids, etc., by making intimate contact with the component materials by interfacial wetting, creating intermolecular attractive forces. The binder component may be natural plant extracted, nonionic modified viscous polysaccharide, including one or more of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used for bonding the particles together, is not easy to loosen, and improves the water resistance of the medium section 10, and is harmless to human bodies.

Illustratively, the fragrance ingredient is used to provide a characteristic fragrance, such as a solid or liquid substance of hay, roasted sweet, nicotine. The flavoring component may include one or more combinations of tobacco or other plants, flavored plant extracts, essential oils, absolute oils, and the flavoring component may include one or more combinations of monomeric flavoring substances, such as megastigmatrienone, neophytadiene, geraniol, nerol, and the like.

The medium segment 10 is formed with micropores, and the micropores communicate with each other and form micro air passages communicating with the air passage holes 10 a. That is, the micro air passage communicates with the air passage hole 10a, and since the micro air passage is formed by communication between micro holes, the micro holes communicate with the micro air passage. In addition, it is understood that the micropores are communicated with each other, and may be partially communicated with each other, partially not communicated with each other, or all communicated with each other. For example, in embodiments where the media segment 10 is a particle combination, the pores are formed by particle-to-particle gaps. The size of the micropores is determined by the particle-to-particle gaps.

The air passage holes 10a and the micro air passages can increase the surface area of the medium section 10, facilitate heat transfer and improve heating efficiency. The medium of the medium section 10 is heated to release aerosol, the aerosol is collected to the air passage holes 10a through gaps among wall materials or micro air passages, the aerosol released by the atomized medium exposed to the air passage holes 10a (i.e. the atomized medium positioned on the inner wall surface of the air passage holes 10 a) can be directly released to the air passage holes 10a, and the aerosol between adjacent air passage holes 10a can also circulate through the micro air passages and be conveyed to the suction end under the action of suction negative pressure.

It should be noted that the specific form of the air intake passage is not limited herein, and in some embodiments, referring to fig. 1,2, and 5 to 9, the first wrapping section 31 has an air intake hole 31a penetrating through the first wrapping section 31, and the air intake hole 31a forms an inlet of the air intake passage. That is, the air in the external environment enters the air inlet channel through the air inlet hole 31a on the first wrapping section 31, and then enters the air guide channel 20a through the air inlet channel, and the aerosol generated by the wrapping atomization flows out for the user to suck.

The number of the air intake holes 31a is not limited, and may be one, two or more.

In some embodiments, the number of air intake holes 31a is 4-30, e.g., 4,5, 7, 8, 10, 13, 17, 20, 25, 28, 30, etc.

It should be noted that, if the number of the air intake holes 31a is too large, the air intake amount will be too large, the suction resistance will be small, and the content of the aerosol sucked will be small, and if the number of the air intake holes 31a is too small, the air intake amount will be too small, the suction resistance will be large, and the content of the aerosol sucked will be small, so as to affect the user experience.

In this embodiment, the number of the air intake holes 31a is suitable, the number of the air intake holes 31a is not too large, and the suction resistance is suitable, so that the content of aerosol sucked by a user is suitable, and the user experience is improved.

In other embodiments, referring to fig. 3 and 4, the circumferential surface of the functional segment 20 is provided with an air passage groove 20d, the air passage groove 20d passing through at least one end of the functional segment 20, and the gap between the air passage groove 20d and the first wrapping segment 31 constitutes at least a part of the air intake passage.

That is, in the present embodiment, after passing through the gap between the air passage groove 20d and the first wrapping section 31, the air in the external environment can be wrapped with the aerosol to flow out of the functional section 20, so that the perforating operation on the functional section 20 is not required, the extraction of the aerosol can be realized only by the cooperation of the self structure of the functional section 20 and the air inlet hole 31a, the structure of the aerosol generating product 100 is simpler, and the processing difficulty is small.

Specifically, after passing through the gap between the air passage groove 20d and the first wrapping section 31, the air in the external environment extracts the aerosol generated by the medium section 10 from the vicinity of the interface between the medium section 10 and the functional section 20, flows into the air guide channel 20a, and then the aerosol generated by the medium section 10 is wrapped and flows out of the functional section 20.

In this embodiment, the wrapping layer 30 does not need to be perforated, and the external air is directly introduced from the gap between the air passage groove 20d and the first wrapping section 31, so that the structure and the manufacturing process can be further simplified.

Of course, in other embodiments, the first wrapping section 31 may also be provided with an air inlet hole 31a, and the air inlet hole 31a is disposed at a portion of the first wrapping section 31 for covering the air passage slot 20 d. That is, in the present embodiment, after the air in the external environment enters the air channel 20d through the air inlet hole 31a, the air can flow out of the functional section 20 through the aerosol.

The number of the air passage grooves 20d is not limited, and one air passage groove 20d may be provided, or a plurality of air passage grooves 20d may be provided. When the functional segment 20 is provided with a plurality of air passage grooves 20d, the air passage grooves 20d are provided at intervals on the circumferential outer surface of the functional segment 20.

The specific configuration of the air guide passage 20a is not limited.

In some embodiments, the functional segment 20 is formed with a vent hole 20b, one end of the vent hole 20b passes through the outer circumferential surface of the functional segment 20, the other end extends toward the inside of the functional segment 20, the vent hole 20b forms a part of the intake passage, the vent hole 20b is abutted (aligned and communicated) with the intake hole 31a, and the air guide passage 20a communicates with the intake hole 31a through the vent hole 20 b. Wherein, one end of the vent hole 20b passes through the outer peripheral surface of the functional section 20, and the other end extends toward the inside of the functional section 20, including the case where the vent hole 20b radially passes through the functional section 20, and also including the case where the vent hole 20b passes through only the outer peripheral surface of the functional section 20.

In some embodiments, referring to fig. 1 to 5 and fig. 9, the functional section 20 has a hollow tubular structure with an inner wall surface and an outer wall surface, and a hollow channel 20c is defined by the inner wall surface.

Referring to fig. 2, 5 and 6, the side wall of the functional section 20 is provided with a vent hole 20b, the vent hole 20b constitutes a part of the intake passage, the vent hole 20b passes through at least the outer wall surface, and the air guide passage 20a communicates with the air intake hole 31a through the vent hole 20 b. Wherein the hollow passage 20c constitutes at least a part of the air guide passage 20 a.

That is, air in the external environment can directly enter the functional section 20 through the vent hole 20b after passing through the air inlet hole 31a, aerosol generated after being wrapped and atomized flows out of the functional section 20 through the hollow channel 20c for being sucked by a user, the hollow channel 20c can buffer the aerosol, the buffer capacity of the aerosol is obviously improved, the aerosol can be stably released, the mouth-by-mouth consistency of the aerosol generating product 100 is good, the flowing stroke of the aerosol can be improved, and the rapid cooling is realized.

The vent hole 20b passes through at least the outer wall surface, and the vent hole 20b may pass through only the outer wall surface, or the vent hole 20b may pass through both the outer wall surface and the inner wall surface. That is, a case where the vent hole 20b penetrates the functional section 20 radially is included, as well as a case where the vent hole 20b penetrates only the outer wall surface of the functional section 20.

Illustratively, the functional segment 20 is, for example, a solid acetate fiber structure, the vent 20b may extend through only the outer wall surface of the functional segment 20, or the vent 20b may extend through both the outer wall surface and the inner wall surface, i.e., radially through the functional segment 20.

In some embodiments, referring to fig. 2, the structure between the inner wall surface and the outer wall surface is a solid structure, and the vent hole 20b penetrates the inner wall surface and the outer wall surface.

The solid structure described herein may refer to that an air flow pore is formed by gaps among tows of the solid acetate fiber structure, external air flow enters the air flow pore in the functional section 20 through the air inlet and the vent hole 20b, and the aerosol in the air flow pore is wrapped and drawn out of the functional section 20 for the user to suck, and the size of the air flow pore is smaller than that of the air passage hole 10a, so that the air flow pore has the function of adjusting suction resistance. In this embodiment, the air flow apertures in the solid acetate fiber structure form the air guide channels 20a of the functional section 20.

The solid structure may be a hollow tubular structure having no air flow hole formed therein, such as a paper tube or an aluminum foil tube, and the hollow passage 20c may be connected to the air intake hole 31a through the vent hole 20b by providing the vent hole 20b to penetrate the inner wall surface and the outer wall surface.

In this embodiment, the ventilation hole 20b passes through both the outer wall surface and the inner wall surface, and air in the external environment enters through the air inlet hole 31a and the ventilation hole 20b and is entrained with the aerosol to flow out of the functional section 20 from the hollow channel 20c for the user to suck.

In one embodiment, referring to fig. 2, air in the external environment enters the hollow channel 20c through the air inlet hole 31a and the air vent hole 20b, and part of the air entering the hollow channel 20c flows to the bottom of the hollow channel 20c, and the aerosol is wrapped around and flows out of the functional section 20 from the hollow channel 20c for the user to suck.

It can be appreciated that in this embodiment, the functional section 20 may be a hollow paper tube structure or a hollow aluminum foil tube structure, which is light in weight, so as to reduce the overall weight of the aerosol-generating article 100, and can reduce the temperature of the aerosol by using the hollow area thereof.

Of course, the functional segment 20 may also be a hollow acetate fiber structure (as shown in fig. 5 and 9), a hollow silica gel structure, a hollow PET (polyethylene glycol terephthalate, polyethylene terephthalate) structure, etc., without limitation.

It is understood that acetate fiber refers to acetate fiber, also called cellulose acetate or cellulose acetate, which is a chemically modified polymer compound obtained by esterifying hydroxyl groups in cellulose molecules with acetic acid, and includes diacetate fiber and triacetate fiber, which have good acid and alkali resistance and organic solvent resistance.

The functional section 20 of the hollow acetate fiber structure may be a hollow structure formed by arranging a plurality of acetate fiber tows side by side. The gaps among the tows of the hollow acetate fiber structure form air flow pores, and the hollow acetate fiber structure is provided with a hollow channel 20c penetrating through two ends of the hollow acetate fiber structure along the first direction, and aerosol generated by the medium section 10 can flow out of the hollow acetate fiber structure through the air flow pores and the hollow channel 20c for sucking by a user.

In some embodiments, referring to fig. 5 and 6, the functional section 20 is formed with a vent hole 20b, one end of the vent hole 20b passes through the outer circumferential surface of the functional section 20, the other end extends toward the inside of the functional section 20, the vent hole 20b forms a part of an intake passage, and the air guide passage 20a communicates with the air intake hole 31a through the vent hole 20 b. Ambient air flows into the air guide channel 20a inside the functional section 20 through the air inlet and the vent hole 20b, and the aerosol in the air guide channel 20a is wrapped and flows out of the functional section 20 for the user to suck.

Referring to fig. 6, in this embodiment, the functional section 20 is, for example, a solid acetate fiber structure, and an air flow hole is formed through the gaps between tows of the solid acetate fiber structure, and an external air flow enters the air flow hole inside the functional section 20 through the air inlet and the vent hole 20b, and the aerosol in the air flow hole is wrapped and drawn out of the functional section 20 for the user to suck, and the size of the air flow hole is smaller than that of the air passage hole 10a, so that the function of adjusting the suction resistance is provided.

In this embodiment, the air flow apertures in the solid acetate fiber structure form the air guide channels 20a of the functional section 20.

In addition, in the process that the aerosol passes through the airflow pores, the surface area of the tow-type structure is large, so that the aerosol can be filtered, impurities wrapped in the aerosol can be filtered, and the use experience of a user is improved. At the same time, the resistance to air flow draw can be adjusted by the tow-type structure, and the tow-type structure can prevent condensate formed after aerosol condensation from flowing out of the aerosol-generating article 100 and adversely affecting other devices in the aerosol-generating device.

The number, size, and depth of the ventilation holes 20b are not limited herein, and are determined according to circumstances. The ventilation rate of the aerosol-generating article 100 can be controlled by controlling the number, size, and depth of the ventilation holes 20b and provide sufficient air to effectively extract the aerosol generated by the heating of the media segment 10.

Illustratively, the vent hole 20b may extend in a radial direction of the functional segment 20 and extend to a central axis of the functional segment 20. In this embodiment, one end of the vent hole 20b passes through the outer peripheral surface of the functional section 20, and the other end extends toward the central axis of the functional section 20, or the vent hole 20b passes through the central axis and then continues to pass through the outer peripheral surface of the other side of the functional section 20, or a plurality of vent holes 20b communicate at the central axis.

In some embodiments, referring to fig. 7-9, the media segment 10 is spaced from the functional segment 20 to form a cavity 100a. For example, there is a space between the media segment 10 and the functional segment 20, and an internal cavity 100a is formed under the wrapping of the wrapping layer 30 having a certain hardness. The cavity 100a has a large space, and can increase a contact area with the aerosol so as to lower the temperature of the aerosol and further facilitate the storage of the aerosol.

In some embodiments, referring to fig. 7 to 9, the side wall of the first wrapping section 31 corresponding to the cavity 100a is provided with an air inlet hole 31a in a penetrating manner, the air inlet hole 31a forms an inlet of an air inlet channel, that is, air in the external environment flows out of the functional section 20 for sucking by a user after entering the cavity 100a through the air inlet hole 31a, so that the air in the external environment can promote the cooling effect of the cavity 100a, the probability of depositing the aerosol on the contact surface of the medium section 10 and the functional section 20 can be reduced, the extraction rate of the aerosol is high, the aerosol is cooled through the cavity 100a first, and then the use temperature of the aerosol is reduced through the functional section 20, so that the use temperature of the aerosol is more suitable.

In some embodiments, the functional segments 20 are solid acetate structures, or polyester resin structures, or porous filter structures. On one hand, impurities or harmful substances wrapped in aerosol can be filtered, condensate or large-particle liquid drops formed by condensation of the aerosol are adsorbed, so that the aerosol is kept dry and comfortable, the user experience is improved, and on the other hand, the suction resistance can be regulated, so that the content of the aerosol generated in unit time is more reasonable.

The material of the functional segment 20 is not limited, and for example, the material of the functional segment 20 includes, but is not limited to, one or more of PE (polyethylene), PLA (Polylactic acid, polylactic acid, also called polylactide), PBAT (Poly (butyleneadipate-co-terephthalate), PP (Polypropylene), acetate fiber, and acryl fiber.

In some embodiments, the media segment 10 and the functional segment 20 are the same in cross-sectional shape and the same in cross-sectional size. In this way, the fit between the media segment 10 and the functional segment 20 is facilitated, and the requirements on the dimensions of the wrapping layer 30 can also be reduced, increasing the reliability of the installation of the aerosol-generating article 100.

For example, in some embodiments, referring to fig. 8, the functional segment 20 may be an extruded, unitary structure. The functional section 20 of the integrated structure manufactured by the extrusion molding process has the functions of temperature resistance and thermal collapse prevention besides the cooling function. The extrusion molding may be, for example, a processing method in which a raw material mixture constituting the functional section 20 is fed into an extruder, and the raw material mixture is pushed forward by a screw by an action between a barrel of the extruder and the screw, and continuously passes through a die of a discharge port of the extruder to be manufactured into various cross-section products or semi-products.

Illustratively, in some embodiments, the composition of the functional segment 20 is the same as the composition of the media segment 10. Thus, during use, the functional segment 20 does not cause undesirable smell and avoids affecting the mouthfeel of the aerosol. In addition, the components of the functional section 20 are identical to those of the medium section 10, which is more advantageous for the functional section 20 and the medium section 10 to be manufactured through the same manufacturing process and raw materials, thereby improving the production efficiency.

Of course, in other embodiments, the composition of functional segment 20 is different from the composition of media segment 10. The functional segments 20 may be manufactured from different materials such as plant materials, polysaccharides, silica gel, resins, etc.

The functional section 20 has at least one air guide channel 20a inside, the air guide channel 20a passing through at least one end of the functional section 20 in the first direction.

The functional section 20 has at least one air guide channel 20a therein, and may have one air guide channel 20a therein or may have a plurality of air guide channels 20a therein in the functional section 20.

In some embodiments, the air guide channels 20a are closed through the same end of the functional segment 20 in the first direction, and the other end is closed.

In other embodiments, a portion of the air guide channels 20a pass through one end of the functional segment 20 in the first direction, and another portion of the air guide channels 20a pass through the other end of the functional segment 20 in the first direction.

In still other embodiments, referring to fig. 8, each air guide channel 20a extends through two ends of the functional section 20 along the first direction, that is, the air guide channels 20a extend along the first direction of the functional section 20, and the air flow can flow from one end of the functional section 20 to the other end of the functional section 20 through the air guide channels 20 a. Preferably, the air guide channel 20a is parallel to the central axis of the functional section 20.

It will be appreciated that the interior of the extruded integral functional segment 20 also has micropores that communicate with each other and form micro air passages that communicate with the air guide channels 20 a.

The air passage hole 10a and the air guide passage 20a described above are holes in a macroscopic sense, the micro-holes are holes in a microscopic sense, and the cross-sectional area of the air passage hole 10a is much larger than that of the micro-holes.

Illustratively, the cross-sectional area of airway aperture 10a and air guide channel 20a is at least 20 times the cross-sectional area of the microwells. In the case where the size of the micro-holes is kept substantially unchanged, when it is less than 20 times, it may cause the size of the air passage hole 10a and the air guide passage 20a to be too small, aerosol is not easily released from the inner wall of the air passage hole 10a into the air passage hole 10a, and it may cause the suction resistance of the user to be large, and the user's suction feeling to be deteriorated. Therefore, in this embodiment, when the cross-sectional area of the air passage hole 10a is greater than or equal to 20 times of the cross-sectional area of the micro-hole, the release rate of the aerosol from the inner wall of the air passage hole 10a can be ensured, the suction resistance can be reduced, and the user suction experience is improved.

In some embodiments, the cross-sectional area of airway aperture 10a is 20-60000 times the cross-sectional area of the microwell. If the cross-sectional area of the air passage hole 10a exceeds 60000 times the cross-sectional area of the micro-hole, the area of the air passage hole 10a will be excessively large, the overall quality of the generated aerosol will be reduced, the aerosol generating substrate will be utilized less, and the heating rate will be increased, so that the aerosol will be easily released from the micro-hole into the environment.

Illustratively, the cross-sectional area of the airway aperture 10a is 100 times to 40000 times the cross-sectional area of the microwell.

In some embodiments, the aperture of airway aperture 10a ranges from 0.05mm (millimeter, millimeters) to 6mm. When the diameter of the air passage hole 10a is smaller than 0.05mm, the processing cost of the medium section 10 is high and problems of large suction resistance and low medium utilization rate easily occur. When the diameter of the air passage hole 10a is larger than 6mm, the sectional area is large, the flow rate of the air flow in the suction state of the same volume is smaller, and the aerosol is easy to deposit, so that the utilization rate of the aerosol is low.

The specific value of the aperture of the airway hole 10a is not limited, and is, for example, 0.05mm, 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 6mm, or the like.

The aperture of the airway hole 10a refers to its equivalent diameter.

Equivalent diameter refers to the diameter of a circle having the same cross-sectional area as the measurement object.

When the functional section 20 is provided with a plurality of air guide channels 20a, the aerosol can exchange heat with the hole walls of the air guide channels 20a when flowing through the air guide channels 20a, and the temperature of the aerosol can be effectively reduced by utilizing multi-air-passage heat exchange.

The function section 20 adjusts the functions of cooling, filtering, and adjusting the suction resistance by providing the air guide passage 20a, by controlling the design parameters of the air guide passage 20a, for example, by controlling the number of the air guide passages 20a of the function section 20, the cross-sectional area (hydraulic diameter) of the air guide passage 20a, the cross-sectional area of the function section 20, and the like.

It should be noted that the shape of the air guide channel 20a is not limited herein, and illustratively, the cross-sectional shape of the air guide channel 20a on a plane perpendicular to the first direction of the functional section 20 includes, but is not limited to, at least one of a circle (as in fig. 8), an ellipse, a racetrack, an elongated shape, a polygon including regular or irregular polygons, and a pentagram.

The cross-sectional shape of the air guide passage 20a refers to the cross-sectional shape of the air guide passage 20a taken along a plane perpendicular to the first direction of the functional section 20.

The cross-sectional shapes of the respective air guide passages 20a may be identical, or the cross-sectional shapes of at least two air guide passages 20a may be different, for example, the cross-sectional shape of at least one air guide passage 20a may be circular, and the cross-sectional shape of at least one air guide passage 20a may be polygonal.

In order to facilitate the aerosol generated by the heating of the medium section 10 to flow directly out of the air guide channel 20a of the functional section 20 for user suction. Illustratively, at least a portion of the air conduction path 20a communicates with the airway aperture 10 a. I.e. projected on a plane perpendicular to the first direction of the aerosol-generating article 100, the air-guide channel 20a overlaps at least part of the orthographic projection of the airway aperture 10 a.

It should be noted that, the communication between the air guide passage 20a and the air passage hole 10a refers to direct communication.

Illustratively, the cross-sectional area of the air guide channel 20a is smaller than the cross-sectional area of the airway aperture 10a, or the hydraulic diameter of the air guide channel 20a is smaller than or equal to the hydraulic diameter of the airway aperture 10a, in a plane perpendicular to the first direction of the aerosol-generating article 100. In this manner, the cooling, filtering, and resistance to draw of the aerosol-generating article 100 are facilitated.

In the present examples, hydraulic diameter refers to the ratio of four times the area of the flow cross section to the perimeter.

It will be appreciated that the number of air guide channels 20a is greater than the number of air passage holes 10a, and that a greater number of air guide channels 20a with a smaller cross-sectional area facilitates cooling and filtering of the aerosol and also adjusts the resistance to draw of the aerosol-generating article 100.

Illustratively, the media segment 10 and the functional segment 20 are cylinders having uniform outer diameters and coaxially disposed, and the first direction is the axial direction of the media segment 10 and the functional segment 20. Through setting the medium section 10 and the functional section 20 to be cylinders with the same outer diameter, and the axial of the medium section 10 and the functional section 20 are arranged in sequence, the structure of the aerosol-generating article 100 can be more compact, and the use experience of a user is improved. The functional section of the embodiment of the application has simple structure, simplifies the structural design and the technological process of the aerosol generating product and reduces the production cost.

Seven specific embodiments are briefly described below with reference to the drawings.

First embodiment

Referring to fig. 1 and 2, in this embodiment, an aerosol-generating article 100 comprises a wrapper 30, a media segment 10 and a functional segment 20. The wrapping layer 30 wraps the circumferential outer surfaces of the media segment 10 and the functional segment 20, and the functional segment 20 is located at one end of the media segment 10 along the first direction. That is, the media segment 10 and the functional segment 20 are located at both ends of the aerosol-generating article 100, respectively, wherein the media segment 10 is the distal lip end of the aerosol-generating article 100 and the functional segment 20 is the proximal lip end of the aerosol-generating article 100.

The media segment 10 and the functional segment 20 are separable structures, i.e. the aerosol-generating article 100 is a two-segment combined structure of the media segment 10 and the functional segment 20.

The functional segment 20 has an air guide channel 20a, the air guide channel 20a communicating with the air inlet channel for guiding the air flow out for the user to suck.

The part of the wrapping layer 30 protruding out of the medium section 10 along the first direction is a first wrapping section 31, the functional section 20 is arranged in the first wrapping section 31, an air inlet channel is formed between the first wrapping section 31 and the functional section 20, and the air guide channel 20a is communicated with the air inlet channel.

At least one air passage hole 10a is provided in the interior of the medium section 10, the air passage hole 10a penetrating at least one end of the medium section 10 in the first direction.

The medium section 10 is an integral structure containing macroscopic and/or microscopic porous structures, which is prepared by adopting extrusion, injection molding or die casting and other processes, the suction resistance of the medium section 10 mainly depends on the porosity of the medium section, namely the aperture and the number of the air passage holes 10a, and the upper end of the medium section is provided with the functional section 20, so that the suction resistance adjusting function is considered while the effective extraction of the temperature reduction and the smoke amount is ensured, and the suction resistance of the aerosol generating product 100 meets the design requirement.

The first wrapping section 31 has an intake hole 31a passing through the first wrapping section 31, the intake hole 31a constituting an inlet of the intake passage. That is, the air in the external environment enters the air inlet channel through the air inlet hole 31a on the first wrapping section 31, and then enters the air guide channel 20a through the air inlet channel, and the aerosol generated by the wrapping atomization flows out for the user to suck.

The functional section 20 is of a hollow tubular structure and has an inner wall surface and an outer wall surface, a hollow channel 20c is surrounded on the inner wall surface, a vent hole 20b is arranged on the side wall of the functional section 20, the vent hole 20b forms a part of an air inlet channel, the vent hole 20b at least penetrates through the outer wall surface, and the air guide channel 20a is communicated with the air inlet hole 31a through the vent hole 20 b. Wherein the hollow passage 20c constitutes at least a part of the air guide passage 20 a.

The structure between the inner wall surface and the outer wall surface is a solid structure, and the vent hole 20b penetrates the inner wall surface and the outer wall surface. The functional segments 20 are for example hollow paper tube structures or hollow aluminium foil tube structures.

The aerosol flow pattern in this embodiment is specifically described, and the medium segment 10 has micropores therein, which are at least partially communicated with each other and with the first gas passage holes 10 a. When the medium section 10 is heated, air in the external environment enters the hollow channel 20c through the air inlet hole 31a on the first wrapping section 31 and the air vent hole 20b arranged on the side wall of the functional section 20, and aerosol generated by wrapping and atomizing flows out for being sucked by a user. First, the

Two embodiments

Referring to fig. 5, the aerosol-generating article 100 of this embodiment has a structure substantially identical to that of the first embodiment, except that the functional segments 20 of this embodiment are of a tow-type structure, such as a hollow acetate fiber structure.

The vent hole 20b penetrates the inner wall surface and the outer wall surface.

Third embodiment

Referring to fig. 6, the aerosol-generating article 100 of this embodiment has a structure substantially identical to that of the first embodiment, except that the functional segments 20 of this embodiment are of a tow-type structure, such as a solid acetate fiber structure.

The functional section 20 is formed with a ventilation hole 20b, one end of the ventilation hole 20b penetrates the outer peripheral surface of the functional section 20, the other end extends toward the inside of the functional section 20, the ventilation hole 20b constitutes a part of an intake passage, and the air guide passage 20a communicates with the intake hole 31a through the ventilation hole 20 b. Ambient air flows into the air guide channel 20a inside the functional section 20 through the air inlet and the vent hole 20b, and the aerosol in the air guide channel 20a is wrapped and flows out of the functional section 20 for the user to suck.

The vent hole 20b may extend in a radial direction of the functional section 20 and extend to a central axis of the functional section 20.

Fourth embodiment

Referring to fig. 7, the aerosol-generating article 100 of this embodiment is generally identical in construction to the third embodiment, except that in this embodiment the media segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

The air inlet holes 31a pass through the first wrapping section 31 to correspond to the side walls of the cavity 100 a.

Fifth embodiment

Referring to fig. 8, the aerosol-generating article 100 of this embodiment has a structure substantially identical to that of the fourth embodiment, except that the functional segments 20 of this embodiment are extruded and formed as a unitary structure.

Sixth embodiment

Referring to fig. 9, the aerosol-generating article 100 of this embodiment is generally identical in construction to the second embodiment, except that in this embodiment the media segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

The air inlet hole 31a penetrates through the first wrapping section 31 to correspond to the side wall of the cavity 100 a.

Seventh embodiment

Referring to fig. 3 and 4, the aerosol-generating article 100 according to this embodiment has a substantially identical structure to that of the first embodiment, and mainly includes that in this embodiment, the circumferential surface of the functional section 20 is provided with an air passage groove 20d, the air passage groove 20d passes through at least one end of the functional section 20, an air inlet hole 31a is provided at a portion of the first wrapping section 31 for covering the air passage groove 20d, and the air passage groove 20d defines at least a portion of the air inlet passage.

That is, in the present embodiment, after the air in the external environment enters the air channel 20d through the air inlet hole 31a, the air can be wrapped with the aerosol to flow out of the functional section 20, so that the perforating operation on the functional section 20 is not needed, the extraction of the aerosol can be realized only by the cooperation of the self structure of the functional section 20 and the air inlet hole 31a, the structure of the aerosol generating product 100 is simpler, and the processing difficulty is small.

The functional section 20 has a hollow tubular structure and has an inner wall surface and an outer wall surface, and a hollow passage 20c is defined in the inner wall surface.

The end of the functional section 20 far away from the medium section 10 extends beyond the wrapping layer 30, that is, a part of the structure of the functional section 20 is arranged in the wrapping layer 30, and the other part of the structure is exposed outside the wrapping layer 30, so that a user can directly use aerosol through the part of the functional section 20 exposed outside the wrapping layer 30, and can also use aerosol by sleeving a suction nozzle outside the functional section 20.

In the description of the present application, reference to the term "one embodiment," "in some embodiments," "in other embodiments," "in yet other embodiments," or "exemplary" 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 application. In the present application, the schematic representations of the above terms are not necessarily for the same embodiment or example. 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 various embodiments or examples described in the present application and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, comprising:

A medium segment for generating aerosol, wherein the medium segment is an integral structure, and at least one airway hole is provided inside the medium segment, and the airway hole passes through at least one end of the medium segment along a first direction;

A functional segment, disposed at one end of the medium segment along the first direction;

A wrapping layer, wrapping around at least a portion of the dielectric segment and at least a portion of the functional segment's circumferential outer surface;

The portion of the wrapping layer protruding from the medium segment along the first direction is a first wrapping segment, the functional segment is at least partially disposed in the first wrapping segment, and the first wrapping segment and/or the functional segment define an air inlet channel.

2. An aerosol generating article according to claim 1, characterized in that the first wrapping section has an air inlet hole running through the first wrapping section, and the air inlet hole constitutes the entrance of the air inlet channel.

3. The aerosol generating product according to claim 2 is characterized in that the functional segment is formed with a ventilation hole, one end of the ventilation hole passes through the outer peripheral surface of the functional segment, and the other end extends toward the interior of the functional segment, the ventilation hole is connected to the air inlet hole, and the ventilation hole constitutes a part of the air inlet channel.

4. The aerosol generating product according to claim 2 is characterized in that the functional section is a hollow tubular structure having an inner wall and an outer wall, the inner wall enclosing a hollow channel, and the side wall of the functional section is provided with ventilation holes, the ventilation holes at least pass through the outer wall, the ventilation holes are connected to the air inlet holes, and the ventilation holes constitute a part of the air inlet channel.

5 . The aerosol generating product according to claim 4 , wherein the structure between the inner wall surface and the outer wall surface is a solid structure, and the ventilation hole penetrates the inner wall surface and the outer wall surface.

6. The aerosol generating product according to claim 1 is characterized in that an airway groove is provided on the circumferential surface of the functional segment, the airway groove passes through at least one end of the functional segment, and the gap between the airway groove and the first wrapping segment constitutes a part of the air inlet channel.

7. An aerosol generating article according to claim 6, characterized in that the end of the functional segment away from the medium segment extends beyond the wrapping layer.

8. An aerosol generating article according to claim 1, characterized in that the medium segment and the functional segment are spaced apart to form a cavity.

9. The aerosol generating product according to claim 8, characterized in that an air inlet hole is provided through the side wall of the first wrapping section corresponding to the cavity, and the air inlet hole constitutes the entrance of the air inlet channel.

10. The aerosol generating product according to claim 1, characterized in that the functional segment is an integrated structure, and has at least one air-guiding channel inside the functional segment, and the air-guiding channel passes through at least one end of the functional segment along the first direction.

11. An aerosol generating article according to claim 10, characterized in that at least part of the air-conducting channel is in communication with the airway hole.

12. The aerosol generating product according to claim 1, characterized in that the medium segment and the functional segment are cylinders with the same outer diameter and coaxially arranged, and the first direction is the axial direction of the medium segment and the functional segment.