CN119366686A - An aerosol generating product - Google Patents

Abstract

The embodiment of the application provides an aerosol-generating product, which comprises an aerosol-generating substrate section and a functional section, wherein at least one air passage is arranged in the aerosol-generating substrate section, the air passage penetrates through at least one of two opposite ends of the aerosol-generating substrate section along a first direction, the functional section is arranged at one end of the aerosol-generating substrate section along the first direction, the functional section is provided with a supporting section, a cooling section and a filtering section which are sequentially arranged along the first direction, and the supporting section is positioned between the aerosol-generating substrate section and the cooling section. The aerosol generating product provided by the embodiment of the application has the advantages of higher aerosol extraction efficiency and higher structural strength, and can better improve the suction experience of a user.

Description

Aerosol-generating article

Technical Field

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

Background

In the related art, there is an aerosol-generating article provided with an aerosol-generating substrate section for heating with an external heat source to generate an aerosol, and a filter section through which the aerosol is filtered for inhalation by a user.

However, the aerosol generating substrate section in the related art has compact structure and low aerosol extraction efficiency, and the heated aerosol generating product has higher temperature, so that the excessive temperature easily causes the heated shrinkage and deformation of the filter section during suction, thereby influencing the suction experience.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an aerosol-generating article that is capable of improving the feel of the smoking experience.

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

An aerosol-generating substrate segment having at least one airway inside the aerosol-generating substrate segment, the airway extending through at least one of opposite ends of the aerosol-generating substrate segment in a first direction;

The function section, the function section sets up the one end along the first direction of aerosol generation matrix section, the function section is provided with along support section, cooling section and the filtration section of first direction range in proper order, the support section is located the aerosol generation matrix section with between the cooling section.

In one embodiment, at least one of the support section and the cooling section is a tubular structure.

In one embodiment, the tubular structure is a fiber tube or a metal tube.

In one embodiment, the support section is a support tube with a first hollow channel, the cooling section is a cooling tube with a second hollow channel, and the external dimension of the cross section of the support tube is the same as the external dimension of the cross section of the cooling tube.

In one embodiment, the support section is a support tube with a first hollow channel, the cooling section is a cooling tube with a second hollow channel, and the cross section size of the first hollow channel is smaller than or equal to the cross section size of the second hollow channel.

In one embodiment, the support section is a support tube having a first hollow passage and a first air flow passage located on a peripheral side of the first hollow passage and penetrating opposite ends of the support tube in the first direction.

In one embodiment, the cooling section is a cooling tube having a second hollow channel and a second air flow channel, where the second air flow channel is located at a peripheral side of the second hollow channel and penetrates through two opposite ends of the cooling tube along the first direction.

In one embodiment, the support section is the support tube, the support tube comprises a first outer circle layer, a first inner circle layer sleeved in the first outer circle layer, and a first corrugated layer connected between the first outer circle layer and the first inner circle layer, the cross section of the first corrugated layer is wavy, a first hollow channel is formed in the first inner circle layer, and the first outer circle layer, the first inner circle layer and the first corrugated layer jointly define a plurality of first air flow channels.

In one embodiment, the support section is the support tube, and the aerosol-generating article further comprises a flavour substance disposed within the first airflow channel.

In one embodiment, the cooling section is the cooling tube, the cooling tube includes a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer, and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, the cross section of the second corrugated layer is wavy, the interior of the second inner circular layer is a second hollow channel, and the second outer circular layer, the second inner circular layer and the second corrugated layer jointly define a plurality of second air flow channels.

In one embodiment, the temperature reduction section is the temperature reduction tube, and the aerosol-generating article further comprises a flavour substance disposed within the second airflow channel.

In one embodiment, the support section is a support tube having a first hollow passage, a portion of an outer sidewall of the support tube being recessed to form a channel extending through opposite ends of the support tube in the first direction.

In one embodiment, the cooling section is a cooling tube with a second hollow channel, and a part of the outer side wall of the cooling tube is sunken to form a groove, and the groove penetrates through two opposite ends of the cooling tube along the first direction.

In one embodiment, the support section is a support tube having a first hollow passage, the support tube comprising a first tube wall and a metal coating, the first tube wall defining the first hollow passage, and at least one of an inner wall surface and an outer wall surface of the first tube wall being coated with the metal coating.

In one embodiment, the metal coating is made of one or a combination of at least two of aluminum, copper and tin.

In one embodiment, the cooling section is a cooling tube having a second hollow channel, and the cross-sectional dimension of the first hollow channel is equal to or different from the cross-sectional dimension of the second hollow channel.

In one embodiment, the support section is a support tube having a first hollow passage, the support tube including a first tube wall defining the first hollow passage and a divider disposed in the first hollow passage to divide the first hollow passage into a plurality of third air flow passages.

In one embodiment, one of the support section and the cooling section is the tubular structure, and the other is a solid fiber structure.

In one embodiment, the filter segment is a solid fiber structure or a porous structure.

In one embodiment, the aerosol-generating substrate section, the support section, the cooling section and the filter section are coaxially arranged cylinders and the aerosol-generating substrate section is of an integral structure, and the first direction is the axial direction of the aerosol-generating substrate section, the support section, the cooling section and the filter section.

In one embodiment, the aerosol-generating article further comprises an outer wrapper layer wrapping around the outer peripheral sides of the aerosol-generating substrate segment and the functional segment.

The embodiment of the application provides an aerosol-generating product, which is provided with an aerosol-generating substrate section with an air passage and a functional section positioned at one end of the aerosol-generating substrate section along a first direction, wherein the functional section is provided with a supporting section, a cooling section and a filtering section which are sequentially arranged along the first direction, and the supporting section is positioned between the aerosol-generating substrate section and the cooling section. The air passage on the aerosol generating substrate section can prolong the air flow path, improve the flow speed of the air flow in the aerosol generating substrate section, so that the impact force of the air flow can be improved, the aerosol can be uniformly mixed, the extraction efficiency and uniformity of the aerosol in the aerosol generating substrate section can be improved, the suction experience of a user can be improved, the structural strength of the functional section can be improved by the supporting section, collapse and deformation of the functional section at the high temperature of the aerosol can be better prevented, the temperature of the aerosol can be reduced by the temperature reducing section, the human body can accept the temperature, the efficiency of extracting the aerosol by the aerosol generating product is higher, the structural strength is higher, and the suction experience of the user can be better improved.

Drawings

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

Fig. 2 is a schematic structural view of the aerosol-generating article of fig. 1 with the outer wrapper omitted;

fig. 3 is a cross-sectional view of the aerosol-generating article shown in fig. 1;

fig. 4 is a cross-sectional view of a second aerosol-generating article according to an embodiment of the application;

FIG. 5 is a schematic view of the support section of FIG. 4;

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

Fig. 7 is a cross-sectional view of a fourth aerosol-generating article according to an embodiment of the application;

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

FIG. 9 is a schematic view of the support section of FIG. 8;

fig. 10 is a cross-sectional view of a sixth aerosol-generating article according to an embodiment of the application.

Fig. 11 is a cross-sectional view of a seventh aerosol-generating article according to an embodiment of the application;

fig. 12 is a cross-sectional view of the cooling section shown in fig. 11.

Description of the reference numerals

10. Aerosol-generating substrate segments 10a, airways 20, functional segments 21, support segments 21a, first hollow channels 21b, first air channels 21c, third air channels 211, first tube walls 212, metal coating 213, separators 214, first outer circumferential layer 215, first inner circumferential layer 216, first corrugated layer 22, cooling segments 22a, second hollow channels 22b, second air channels 22c, grooves 23, filter segments 30, outer wrapping layer.

Detailed Description

In describing embodiments of the present application, it should be noted that the azimuth or positional relationship indicated by the term "first direction" or the like is based on the azimuth or positional relationship shown in fig. 2, and these azimuth terms are merely for convenience in describing embodiments of the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the embodiments of the present application.

An embodiment of the present application provides an aerosol-generating article, see fig. 1 to 4, 6 to 8, 10, comprising an aerosol-generating substrate section 10 and a functional section 20.

The interior of the aerosol-generating substrate segment 10 has at least one air passage 10a, the air passage 10a extending through at least one of the opposite ends of the aerosol-generating substrate segment 10 in the first direction. The functional section 20 is arranged at one end of the aerosol-generating substrate section 10 in a first direction, the functional section 20 is provided with a support section 21, a cooling section 22 and a filter section 23 arranged in sequence in the first direction, the support section 21 being located between the aerosol-generating substrate section 10 and the cooling section 22.

The aerosol-generating article is for use with an aerosol-generating device having a heating assembly, in particular a heating assembly for heating and atomizing an aerosol-generating substrate segment 10 in the aerosol-generating article to produce an aerosol for inhalation by a user or for use in medicine, cosmesis, etc.

There are various heating modes of the heating member, and exemplary heating modes include center heating and circle heating, and center heating mode means that the heating member is inserted into the inside of the aerosol-generating article to bake the aerosol-generating article from inside to outside. The circumferential heating means that the heating member is disposed at the periphery of the aerosol-generating article to perform outside-in bake heating of the aerosol-generating article. The heating modes can be specifically resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating and the like.

The particular structure of the aerosol-generating substrate segment 10 is not limited herein, and in an exemplary embodiment, the aerosol-generating substrate segment 10 may be made from the aerosolization medium itself, such as from a fumigant flavor medium. In other embodiments, the aerosol-generating substrate segment 10 may also comprise a substrate, such as carbon fibers, which may be high temperature resistant, and an atomizing medium disposed on the substrate, such that the strength of the aerosol-generating substrate segment 10 may be increased and the aerosol-generating substrate segment may be subjected to a degree of high temperature without generating an odor.

The specific composition of the aerosol-generating substrate segment 10 is not limited herein, and in an exemplary embodiment, the aerosol-generating substrate segment 10 may comprise a plant component, an adjunct component, a smoke agent component, an adhesive component, and the like. In one embodiment, the plant component is one or more of tobacco leaf raw material, tobacco leaf fragments, tobacco stems, tobacco powder, and powder formed by crushing fragrant plants. The plant components are core sources of product fragrance, endogenous substances in the plant components, such as nicotine, enter human blood through atomization, and the pituitary gland is promoted to produce dopamine, so that physiological satisfaction is obtained.

In one embodiment, the auxiliary component may be one or more of an inorganic filler, a lubricant, and an emulsifier. 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 skeleton supporting function for plant components, and has micropores, so that the porosity of the wall material formed by the plant components can be improved, and the release rate of aerosol 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 particles, reduce the friction force among the particles, ensure that the overall density of the particle distribution is more uniform, reduce the pressure required by the molding of the die 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. Emulsifiers (also known as surfactants) reduce the interfacial tension of water-soluble and water-insoluble components in the mixed system and form stronger films on the surface of the droplets or double layers on the surface of the droplets due to the charge given by the emulsifier, preventing the droplets from aggregating with each other while maintaining a uniform emulsion. The consistency of product quality can be improved by emulsifying and homogenizing the two immiscible components.

The function of the smoke agent component is to generate a significant amount of steam upon heating, thereby enhancing the smoke content of the smoking article. In one embodiment, the smoking agent may include, for example, one or more of a monohydric alcohol (e.g., menthol), a polyhydric alcohol (e.g., propylene glycol, triethylene glycol, 1, 3-butanediol, and glycerol), an ester of a polyhydric alcohol (e.g., glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate), a monocarboxylic acid, a polycarboxylic acid (e.g., lauric acid, myristic acid), or an aliphatic ester of a polycarboxylic acid (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 vanillic acid, tributyrin, lauryl acetate).

In one embodiment, the binder component is a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more of tamarind polysaccharide, pullulan polysaccharide, algal polysaccharide, locust bean gum, guar gum, xyloglucan. The adhesive is in close contact with the interface of the component materials of the product by wetting, and generates intermolecular attraction force, thereby playing a role of bonding the powder, liquid and the like of the component materials. And meanwhile, natural plant extraction and nonionic adhesive are selected, so that the release of harmful substances such as methanol, formaldehyde and acrolein caused by colloid modification can be avoided, and the safety of the product is improved.

Illustratively, the aerosol-generating substrate segment 10 may be a particulate combination, which is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing components of a smoking agent, tobacco or the like. The aerosol-generating substrate segments 10 are of unitary construction, for example, a unitary construction that may be formed by injection molding, compression molding or extrusion processes. Extrusion molding refers to 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 machine head to be manufactured into various section products or semi-products. The aerosol matrix formed by extrusion molding is in a strip shape.

Because the aerosol-generating substrate segment 10 is a particle combination, the aerosol-generating substrate segment 10 is an integral medium after being heated, sucked or stopped being heated, the phenomenon of disintegration and dropping is not easy to occur, and the problems that the flake-shaped, filament-shaped or scattered particle aerosol-generating substrate segment 10 in the prior art is loose, filament-shaped components, particle components fall off and is not easy to clean are solved.

In addition, the shape of the aerosol-generating substrate segment 10 is not limited, and referring to fig. 2, for example, the aerosol-generating substrate segment 10 may be cylindrical, and the cross-section of the cylindrical aerosol-generating substrate segment 10 may be circular, or may be other shapes, such as polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, racetrack, or shaped, wherein shaped refers to other symmetrical or asymmetrical shapes other than those listed above.

The first direction is the direction of arrangement of the aerosol-generating substrate segments 10, the support segments 21, the cooling segments 22 and the filter segments 23, the aerosol-generating article is inserted into the aerosol-generating device in the first direction, the aerosol-generating article is also removed from the aerosol-generating device in the first direction, and the length of the aerosol-generating substrate segments 10 in the first direction may be longer, shorter, or the same than the length in the other directions.

For example, when the outer contour of the aerosol-generating substrate segment 10 is cylindrical, the first direction is the axial direction of the aerosol-generating substrate segment 10, it is noted that the axial length of the aerosol-generating substrate segment 10 may be smaller than its diameter.

For another example, when the outer contour of the aerosol-generating substrate section 10 is rectangular parallelepiped, the first direction may still be the direction defined above, i.e. the direction in which the aerosol-generating substrate section 10, the support section 21, the cooling section 22 and the filter section 23 are arranged, or the direction in which the aerosol-generating article is to be taken out of the aerosol-generating device, the first direction of the aerosol-generating substrate section 10 may be any one of the length, width, height of the rectangular parallelepiped.

For example, referring to fig. 2, the aerosol-generating substrate segment 10, the support segment 21, the cooling segment 22 and the filter segment 23 may be coaxially arranged cylinders and the aerosol-generating substrate segment 10 is of unitary construction, the first direction being the axial direction of the aerosol-generating substrate segment 10, the support segment 21, the cooling segment 22 and the filter segment 23.

The airway 10a in fig. 3 extends through opposite ends of the aerosol-generating substrate segment 10 in the first direction, in some embodiments the airway 10a may extend through only one end of the aerosol-generating substrate segment 10 near the functional segment 20 and the other end is closed, or the airway 10a may extend through only one end of the aerosol-generating substrate segment 10 facing away from the functional segment 20 and the other end is closed.

The passage 10a extends through both ends of the aerosol-generating substrate segment 10 in the first direction more advantageously reduces the resistance to inhalation by the user than the passage 10a extends through one end of the aerosol-generating substrate segment 10 in the first direction.

The number of the air passages 10a may be one or a plurality.

The air passage 10a may be a straight air passage 10a as shown in fig. 3, and the straight air passage 10a is an air passage 10a extending along a straight line, or the extending direction of the straight air passage 10a is a straight line.

The air passage 10a may also be a spiral air passage 10a, and the spiral air passage 10a is a curved air passage 10a with curvature other than 0 along at least a partial area of the extending direction, for example, the spiral air passage 10a may be a structure with a curved section with curvature other than 0 and a straight section with curvature 0 along the extending direction of the spiral air passage 10a, or may be a structure with a curved section with curvature other than 0 and a straight section without curvature of 0. That is, the spiral air passage 10a may extend from the start point to the end point of the spiral air passage 10a in the extending direction, not along a straight line.

When the number of the air passages 10a is plural, it is possible that a part of the air passages 10a is the through air passage 10a and another part of the air passages 10a is the spiral air passage 10a.

The cross-sectional shape of the airway 10a is not limited, and for example, the cross-sectional shape may be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, racetrack, or contoured, etc.

The air passage 10a can prolong the air flow path and improve the flow speed of the air flow in the aerosol-generating substrate segment 10, so that the impact force of the air flow can be improved, the aerosol can be uniformly mixed, the extraction efficiency and uniformity of the aerosol in the aerosol-generating substrate segment 10 can be improved, and the suction feeling of a user can be improved.

The support section 21 is mainly used for providing a supporting effect for the functional section 20 to improve the structural strength of the functional section 20, in particular at high temperatures.

Illustratively, the support section 21 may have a good structural strength at least at high temperatures of 200 ℃.

In some cases, the support section 21 may also provide some resistance to draw.

The cooling section 22 is mainly used for cooling the aerosol so as to avoid the condition of scalding the mouth in the sucking process.

Illustratively, the cool-down section 22 may reduce the temperature of the aerosol to 65 ℃ and below.

The supporting section 21 and the cooling section 22 may have the same structure or may have different structures.

The materials of the support section 21 and the cooling section 22 may be the same or different.

The filter section 23 is mainly used for filtering harmful components in aerosol and adjusting the suction resistance.

Illustratively, the filter segments 23 may be a solid fiber structure consisting essentially of fibers with aerosols passing through naturally occurring pores between the fibers. The solid fiber structure is not provided with macroscopic air flow channels, the macroscopic air flow channels are channels which are mainly formed by machining, the cross-sectional area, the length and other dimensions of the air flow channels can be changed according to design requirements, and the cross-sectional area, the length and other dimensions of pores among fibers are mainly formed naturally in the machining process.

The material of the solid fiber structure can be PET, acetate fiber and the like.

The solid fiber structure can be used for directionally filtering aerosol to remove harmful components in the aerosol, and can also be used for adjusting the suction resistance so as to better prevent the aerosol generating product from influencing the suction experience due to suction cavities caused by too small suction resistance.

The filter segment 23 may also be, for example, a porous structure, which refers to a structure with macroscopic air flow channels.

Illustratively, the suction resistance of the filter segment 23 may be 100pa to 350pa (including the end point value), for example, the suction resistance of the filter segment 23 may be 100pa, 150pa, 170pa, 200pa, 230pa, 260pa, 280pa, 320pa, 350pa, and the like.

It should be noted that the aerosol-generating article relies on the aerosol-generating substrate segment 10 to generate an aerosol, and the functional segment 20 does not generate an aerosol.

Referring to fig. 1 and 3, the aerosol-generating article may further be provided with an outer wrapper 30, the outer wrapper 30 wrapping around the outer peripheral sides of the aerosol-generating substrate segments 10 and the functional segments 20.

The material of the outer wrapping layer 30 is not limited, and for example, the outer wrapping layer 30 includes, but is not limited to, one or more of fiber paper, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butyleneadipate-co-terephthalate, polybutylene terephthalate-adipate) and the like.

Illustratively, the outer wrapping layer 30 may be a one-layer or two-layer structure, for example, when the outer wrapping layer 30 is a one-layer structure, the aerosol-generating substrate segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23 may be wrapped simultaneously, when the outer wrapping layer 30 is a two-layer structure, the supporting segment 21, the cooling segment 22 and the filtering segment 23 may be wrapped by one outer wrapping layer 30, and then the aerosol-generating substrate segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23 may be wrapped by another outer wrapping layer 30, or other wrapping methods may be adopted for the outer wrapping layer 30.

The aerosol generating substrate section in the related art has compact structure and low aerosol extraction efficiency, the heating temperature of the aerosol generating substrate section in the heating process is about 300 ℃, the temperature at the outlet of the aerosol generating substrate section is generally about 200 ℃ during suction, even higher, and the excessive temperature easily causes the heated shrinkage and deformation of the filtering section to influence the appearance and suction experience.

Whereas the aerosol-generating article of the embodiment of the application is provided with an aerosol-generating substrate section 10 having an air channel 10a and a functional section 20 at one end of the aerosol-generating substrate section 10 in a first direction, the functional section 20 is provided with a support section 21, a cooling section 22 and a filter section 23 arranged in sequence in the first direction, the support section 21 being located between the aerosol-generating substrate section 10 and the cooling section 22. The air passage 10a on the aerosol-generating substrate section 10 can prolong the air flow path, improve the flow speed of the air flow in the aerosol-generating substrate section 10, so that the impact force of the air flow can be improved, the aerosol can be uniformly mixed, the extraction efficiency and uniformity of the aerosol in the aerosol-generating substrate section 10 can be improved, the suction feeling of a user can be improved, the structural strength of the functional section 20 can be improved by the supporting section 21, collapse and deformation of the functional section 20 at the high temperature of the aerosol can be better prevented, the temperature of the aerosol can be reduced by the cooling section 22, the temperature can be reduced to the acceptable degree of a human body, the efficiency of extracting the aerosol by the aerosol-generating product is higher, the structural strength is also higher, and the suction experience of the user can be better improved.

In one embodiment, referring to fig. 3, 4, 6-8 and 10, at least one of the supporting section 21 and the cooling section 22 may be a tubular structure, which refers to a tubular shape with a hollow channel.

According to design needs, the support section 21 can be of a tubular structure, the cooling section 22 can be of a non-tubular structure, the support section 21 can be of a non-tubular structure, the cooling section 22 can be of a tubular structure, and the support section 21 and the cooling section 22 can be of tubular structures.

The tubular structure has high structural strength, and the hollow passage of the tubular structure can facilitate the smooth passage of aerosol.

Illustratively, the tubular structure may be a fiber tube, such as a acetate tube (i.e., of acetate), a PET (polyethylene terephthalate ) tube (i.e., of PET), a paper tube (i.e., of vegetable, non-vegetable) or the like.

Illustratively, the tubular structure may be a metal tube, such as an aluminum tube or the like.

In an embodiment, referring to fig. 3, the support section 21 is a support tube having a first hollow channel 21a, the cooling section 22 is a cooling tube having a second hollow channel 22a, that is, the support section 21 and the cooling section 22 may be both in a tubular structure, and the first hollow channel 21a and the second hollow channel 22a are communicated to form a channel through which the aerosol passes together.

Referring to fig. 3, the external dimension of the cross section of the support tube may be the same as the external dimension of the cross section of the cooling tube, that is, the external contour of the cross section of the support tube is exactly the same as the external contour of the cross section of the cooling tube, so as to facilitate the compounding or rubbing molding of the aerosol-generating article.

Referring to fig. 3, the cross-sectional dimension of the first hollow passage 21a may be smaller than the cross-sectional dimension of the second hollow passage 22a, that is, the space within the first hollow passage 21a is relatively narrow compared to the second hollow passage 22 a. This arrangement allows a venturi effect (venturi effect means that when a fluid passes through a reduced flow cross section, the flow velocity of the fluid increases and is inversely proportional to the flow cross section) to be generated between the first hollow passage 21a and the second hollow passage 22a, and thus aerosol can be extracted more rapidly through the first hollow passage 21 a. And the cross-sectional dimension of the second hollow passage 22a of the cooling tube is relatively large, so that the cooling tube has a large specific surface area, and rapid cooling of the aerosol can be realized.

The cross-sectional dimension refers to a dimension in which the cross-sectional area of the cross-section can be calculated, for example, the cross-sections of the first hollow passage 21a and the second hollow passage 22a in fig. 3 are both circular, and thus the cross-sectional dimension refers to the diameter or radius of the cross-sections of the first hollow passage 21a and the second hollow passage 22 a.

In addition, when the external dimension of the cross section of the support tube is the same as or similar to the external dimension of the cross section of the cooling tube, if the cross section dimension of the first hollow passage 21a is smaller than the cross section dimension of the second hollow passage 22a, the wall thickness of the support tube is equal to that of the cooling tube, and the support tube can provide better support for the functional section 20.

In some embodiments, the cross-sectional dimension of the first hollow passage 21a may also be equal to or greater than the cross-sectional dimension of the second hollow passage 22 a.

In the aerosol-generating article shown in fig. 3, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to sequentially pass through the first hollow channel 21a, the second hollow channel 22a and the filtering segment 23, and finally flow into the oral cavity of the user. Since the cross-sectional dimension of the first hollow passage 21a is smaller than that of the second hollow passage 22a in fig. 3, a venturi effect is generated between the first hollow passage 21a and the second hollow passage 22a, and aerosol can pass through the first hollow passage 21a more rapidly, whereby aerosol can be extracted more rapidly. And the cross-sectional dimension of the second hollow passage 22a of the cooling tube is relatively large, so that the cooling tube has a large specific surface area, and rapid cooling of the aerosol can be realized. In an embodiment, referring to fig. 4 and 5, the support tube may be provided with a first air flow channel 21b, and the first air flow channel 21b is located at a peripheral side of the first hollow channel 21a and penetrates through opposite ends of the support tube along the first direction.

The number of the first air flow passages 21b may be one or a plurality.

For example, referring to fig. 5, the support tube may include a first outer circumferential layer 214, a first inner circumferential layer 215 sleeved in the first outer circumferential layer 214, and a first corrugated layer 216 connected between the first outer circumferential layer 214 and the first inner circumferential layer 215, the first corrugated layer 216 having a wave-shaped cross section. Inside the first inner circular layer 215 is a first hollow channel 21a, and the first outer circular layer 214, the first inner circular layer 215 and the first corrugated layer 216 together define a plurality of first air flow channels 21b.

The cooling section 22 in fig. 4 is a cooling tube, and the first air flow channel 21b communicates with the second hollow channel 22 a. That is, a part of the aerosol can flow from the first air flow passage 21b into the second hollow passage 22 a.

In some embodiments, the cooling section 22 may not be a tubular structure.

During the heating process of the aerosol-generating substrate segment 10, external air flows into the aerosol-generating substrate segment 10 from the side of the aerosol-generating substrate segment 10 away from the functional segment 20, and carries the generated aerosol of the aerosol-generating substrate segment 10 to flow towards the functional segment 20, after the air flow carrying the aerosol enters the first hollow channel 21a and the first air flow channel 21b respectively, the air flow carrying the aerosol can be buffered in the first hollow channel 21a and the first air flow channel 21b, and because the heat conduction efficiency of the external air flow is relatively low (the heat conductivity is about 0.03W/(m·k)), the external air flow can exchange heat and cool the aerosol, thereby better preventing the support segment 21 from collapsing and deforming at high temperature, and further ensuring that the support segment 21 can provide better support effect.

Further, the aerosol-generating article may further comprise a flavour substance disposed within the first airflow channel 21b, which may flow out with the airflow through the first airflow channel 21b to act as smoke flavour compensation and to enhance the taste of the suction.

In addition, the fragrance material can absorb a certain amount of heat, for example, the fragrance material can absorb more than 50 joules effectively, so that the temperature of the aerosol can be reduced better by arranging the fragrance material.

In the aerosol-generating article shown in fig. 4 and 5, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to pass through the support tube, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the oral cavity of the user. When passing through the support tube, a part of air flow carrying aerosol enters the first hollow channel 21 and is buffered in the first hollow channel 21, and another part of air flow carrying aerosol enters the first air flow channel 21b and is buffered in the first air flow channel 21b, and because the heat conduction efficiency of the external air flow is relatively low (the heat conductivity is about 0.03W/(m.K)), the external air flow can exchange heat and cool the aerosol, thereby better preventing the support section 21 from collapsing and deforming at high temperature and further ensuring that the support section 21 can provide better support effect.

In an embodiment, referring to fig. 6, the cooling tube may be provided with a second airflow channel 22b, where the second airflow channel 22b is located at a peripheral side of the second hollow channel 22a (the structure of the cooling tube in fig. 6 may refer to the structure of the support tube shown in fig. 5), and penetrates through opposite ends of the cooling tube along the first direction.

The number of the second air flow passages 22b may be one or a plurality.

Illustratively, the cooling tube may include a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer, and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, the cross section of the second corrugated layer being wavy. The second inner circular layer is internally provided with a second hollow channel, and the second outer circular layer, the second inner circular layer and the second corrugated layer jointly define a plurality of second airflow channels.

The support section 21 in fig. 6 is a support tube, and the second air flow passage 22b communicates with the first hollow passage 21 a. That is, part of the aerosol may flow from the first hollow passage 21a into the second airflow passage 22 b.

That is, the cooling pipe may also be provided with a second air flow channel 22b similar to the first air flow channel 21b, and after the air flow carrying the aerosol enters the second hollow channel 22a and the second air flow channel 22b, the air flow carrying the aerosol may also be buffered and cooled in the second hollow channel 22a and the second air flow channel 22b, thereby further improving the cooling effect of the cooling pipe.

Similarly, a fragrance material may be disposed in the second airflow passage 22 b.

In addition, it should be noted that, although the cooling tube shown in fig. 4 is not provided with the second air flow channel 22b, and the support tube shown in fig. 6 is not provided with the first air flow channel 21b, in some embodiments, the functional section 20 may be provided with both the support tube having the first air flow channel 21b and the cooling tube having the second air flow channel 22 b.

In the aerosol-generating article shown in fig. 6, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to sequentially pass through the first hollow channel 21a, the cooling tube and the filtering segment 23, and finally flow into the oral cavity of the user. When passing through the cooling pipe, one part of air flow carrying aerosol enters the second air flow channel 22b and is buffered and cooled in the second air flow channel 22b, and the other part of air flow carrying aerosol enters the second air flow channel 22b and is buffered and cooled in the second air flow channel 22b, so that the cooling effect of the cooling pipe can be further improved.

In an embodiment, the support tube may further be provided with a metal coating 212, for example, referring to fig. 7, for convenience of description, a tube wall of the support tube defining the first hollow channel 21a may be referred to as a first tube wall 211, and at least one of an inner wall surface and an outer wall surface of the first tube wall 211 may be coated with the metal coating 212, that is, only the inner wall surface of the first tube wall 211 may be coated with the metal coating 212, only the outer wall surface of the first tube wall 211 may be coated with the metal coating 212, and also only the inner wall surface and the outer wall surface of the first tube wall 211 may be coated with the metal coating 212.

The metal coating 212 not only can improve the supporting strength of the supporting tube, but also has better temperature resistance, so that the metal coating 212 can better prevent the supporting tube from thermal collapse and deformation at high temperature.

Illustratively, the metal coating 212 may be made of one or a combination of at least two of aluminum, copper, and tin.

In addition, since the metal coating 212 can perform better supporting and temperature resisting functions, when the cooling section 22 is a cooling pipe, the cross-sectional dimension of the first hollow channel 21a of the supporting pipe can be larger than the cross-sectional dimension of the second hollow channel 22a of the cooling pipe, that is, the space in the first hollow channel 21a is relatively larger, so that more aerosol can be accommodated in the first hollow channel 21a, and the efficiency of extracting aerosol can be improved to a certain extent while the capability of buffering aerosol of the supporting pipe is improved.

In some embodiments, the cooling tube may also be provided with a metal coating 212, for example, for convenience of description, a tube wall of the cooling tube defining the second hollow passage 22a may be referred to as a second tube wall, and at least one of an inner wall surface and an outer wall surface of the second tube wall may be coated with the metal coating 212.

In the aerosol-generating article shown in fig. 7, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to sequentially pass through the first hollow channel 21a, the second hollow channel 22a and the filtering segment 23, and finally flow into the oral cavity of the user. Wherein, the stay tube is provided with metal coating 212, and metal coating 212 not only can improve the support intensity of stay tube, and it still has better temperature resistance, therefore, metal coating 212 can prevent better that the stay tube from appearing thermal collapse and deformation under high temperature. Meanwhile, the cross section size of the first hollow channel 21a of the support tube in fig. 7 is larger than that of the second hollow channel 22a of the cooling tube, more aerosol can be contained in the first hollow channel 21a, and the aerosol extraction efficiency can be improved to a certain extent while the aerosol caching capacity of the support tube is improved.

In other embodiments, the cross-sectional dimension of the first hollow passage 21a may also be smaller than the cross-sectional dimension of the second hollow passage 22a of the cooling tube, or the cross-sectional dimension of the first hollow passage 21a may also be equal to the cross-sectional dimension of the second hollow passage 22a of the cooling tube.

In an embodiment, referring to fig. 8 and 9, the support tube may further be provided with a partition 213, and the partition 213 is disposed in the first hollow passage 21a to partition the first hollow passage 21a into a plurality of third air flow passages 21c.

The separator 213 not only can improve the supporting strength of the supporting tube to better prevent the supporting tube from thermal collapse and deformation at high temperature, but also can filter and screen the condensate formed by aerosol or large particles in aerosol to relieve the filtering pressure of the filtering section 23, and can prevent the aerosol generating substrate section 10 from being heated and contracted and falling into the supporting tube or the cooling section 22, thereby better improving the experience of users.

In the aerosol-generating article shown in fig. 8 and 9, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to pass through the support tube, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the oral cavity of the user. Wherein the aerosol-carrying gas flows enter the respective third gas flow passages 21c while passing through the support tube. The separator 213 not only can improve the supporting strength of the supporting tube to better prevent the supporting tube from thermal collapse and deformation at high temperature, but also can filter and screen the condensate formed by aerosol or large particles in aerosol to relieve the filtering pressure of the filtering section 23, and can prevent the aerosol generating substrate section 10 from being heated and contracted and falling into the supporting tube or the cooling section 22, thereby better improving the experience of users.

In some embodiments, a divider 213 may also be disposed within the cooling tube, for example, the divider 213 may be disposed in the second hollow passage 22a to divide the second hollow passage 22a into a plurality of fourth air flow passages.

In one embodiment, one of the support section 21 and the cooling section 22 may be a tubular structure, with the other being a solid fiber structure.

The support section 21 in fig. 10 is a solid fiber structure, for example, the support section 21 may be solid acetate fiber, solid PET, and the cooling section 22 is a cooling tube.

In the aerosol-generating article shown in fig. 10, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the air channel 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to sequentially pass through the support segment 21, the second hollow channel 22a and the filter segment 23, and finally flow into the oral cavity of the user. Wherein, the supporting section 21 is a solid fiber structure, and the solid fiber structure can perform directional filtration on aerosol while playing a supporting role so as to remove harmful components therein, and can also adjust the suction resistance so as to better prevent the aerosol generating product from influencing the suction experience due to suction cavities caused by too small suction resistance.

In other embodiments, the support section 21 may be a support tube, and the cooling section 22 may be a solid fiber structure.

When the support section 21 or the cooling section 22 is a solid fiber structure, the solid fiber structure can also provide 100pa to 350pa (including the end point value), for example, the solid fiber structure can have 100pa, 150pa, 170pa, 200pa, 230pa, 260pa, 280pa, 320pa, 350pa, and the like.

In an embodiment, referring to fig. 11 and 12, a portion of the outer sidewall of the cooling tube may be recessed to form a groove 22c, and the groove 22c penetrates through opposite ends of the cooling tube along the first direction.

The number of the grooves 22c may be one or a plurality.

The grooves 22c can increase the contact area between the aerosol and the cooling tube, reduce the flow rate of the aerosol, and are more beneficial to reducing the temperature of the aerosol.

In addition, a fragrance material may be provided in the groove 22 c.

In the aerosol-generating article shown in fig. 11 and 12, when the aerosol-generating substrate segment 10 is heated, the aerosol-generating substrate segment 10 releases the aerosol, and since at least some of the micropores or gaps in the wall material of the aerosol-generating substrate segment 10 are connected to the air channel 10a, the aerosol released by heating the aerosol-generating substrate segment 10 can enter the air channel 10a through the micropores or gaps connected to the air channel 10a, and at the same time, the external airflow enters the aerosol 10a from the end of the aerosol-generating substrate segment 10 facing away from the functional segment 20, and drives the aerosol to pass through the first hollow channel 21a, the cooling tube and the filtering segment 23 in sequence, and finally flows into the oral cavity of the user. When passing through the cooling pipe, one part of air flow carrying aerosol enters the second air flow channel 22b and is buffered and cooled in the second air flow channel 22b, and the other part of air flow carrying aerosol enters the groove 22c and is buffered and cooled in the groove 22c, so that the cooling effect of the cooling pipe can be further improved.

In other embodiments, portions of the outer side walls of the support tube may also be recessed to form grooves extending through opposite ends of the support tube in the first direction.

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 (16)

1. An aerosol-generating article comprising:

An aerosol-generating substrate segment having at least one airway inside the aerosol-generating substrate segment, the airway extending through at least one of opposite ends of the aerosol-generating substrate segment in a first direction;

The function section, the function section sets up the one end along the first direction of aerosol generation matrix section, the function section is provided with along support section, cooling section and the filtration section of first direction range in proper order, the support section is located the aerosol generation matrix section with between the cooling section.

2. An aerosol-generating article according to claim 1, wherein at least one of the support section and the cooling section is a tubular structure.

3. An aerosol-generating article according to claim 2, wherein the tubular structure is a fibre tube or a metal tube.

4. An aerosol-generating article according to claim 2 or 3, wherein the support section is a support tube having a first hollow passage and the cooling section is a cooling tube having a second hollow passage;

the external dimension of the cross section of the supporting tube is the same as the external dimension of the cross section of the cooling tube, and/or,

The cross-sectional dimension of the first hollow passage is less than or equal to the cross-sectional dimension of the second hollow passage.

5. An aerosol-generating article according to claim 2 or 3, wherein the support section is a support tube having a first hollow channel and a first air flow channel located circumferentially of the first hollow channel and extending through opposite ends of the support tube in the first direction, and/or,

The cooling section is a cooling pipe with a second hollow channel and a second airflow channel, and the second airflow channel is positioned at the periphery of the second hollow channel and penetrates through the cooling pipe along the opposite ends of the first direction.

6. An aerosol-generating article according to claim 5, wherein the support section is the support tube;

The support tube comprises a first outer circular layer, a first inner circular layer sleeved in the first outer circular layer and a first corrugated layer connected between the first outer circular layer and the first inner circular layer, wherein the cross section of the first corrugated layer is wavy, a first hollow channel is formed in the first inner circular layer, the first outer circular layer, the first inner circular layer and the first corrugated layer jointly define a plurality of first air flow channels, and/or,

The aerosol-generating article further comprises a flavour substance disposed within the first airflow channel.

7. An aerosol-generating article according to claim 5, wherein the cooling section is the cooling tube;

The cooling tube comprises a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, the cross section of the second corrugated layer is wavy, a second hollow channel is formed in the second inner circular layer, the second outer circular layer, the second inner circular layer and the second corrugated layer jointly define a plurality of second airflow channels, and/or the aerosol generating product further comprises fragrance substances arranged in the second airflow channels.

8. An aerosol-generating article according to claim 2 or 3, wherein the support section is a support tube having a first hollow passage, a portion of an outer sidewall of the support tube being recessed to form a groove extending through opposite ends of the support tube in the first direction, and/or,

The cooling section is a cooling pipe with a second hollow channel, a part of the outer side wall of the cooling pipe is sunken to form a groove, and the groove penetrates through the cooling pipe along the opposite ends of the first direction.

9. An aerosol-generating article according to claim 2 or 3, wherein the support section is a support tube having a first hollow channel, the support tube comprising a first tube wall and a metal coating, the first tube wall defining the first hollow channel, and at least one of an inner wall surface and an outer wall surface of the first tube wall being coated with the metal coating.

10. An aerosol-generating article according to claim 9, wherein the metal coating is of one or a combination of at least two of aluminium, copper and tin.

11. An aerosol-generating article according to claim 9, wherein the cooling section is a cooling tube having a second hollow channel, the first hollow channel having a cross-sectional dimension equal to or unequal to the cross-sectional dimension of the second hollow channel.

12. An aerosol-generating article according to claim 2 or 3, wherein the support section is a support tube having a first hollow passage, the support tube comprising a first tube wall defining the first hollow passage and a divider disposed in the first hollow passage to divide the first hollow passage into a plurality of third air flow passages.

13. An aerosol-generating article according to claim 2 or 3, wherein one of the support section and the cooling section is of the tubular structure, the other of which is of solid fibrous structure.

14. An aerosol-generating article according to any of claims 1-3, wherein the filter segments are of solid fibrous or porous structure.

15. An aerosol-generating article according to any of claims 1-3, wherein the aerosol-generating substrate section, the support section, the cooling section and the filter section are coaxially arranged cylinders and the aerosol-generating substrate section is of unitary construction, the first direction being axial of the aerosol-generating substrate section, the support section, the cooling section and the filter section.

16. An aerosol-generating article according to any of claims 1-3, further comprising an outer wrapping layer wrapping the outer peripheral side of the aerosol-generating substrate segment and the functional segment.