CN119366679A - An aerosol generating product - Google Patents

Abstract

The aerosol generating product provided in the embodiment of the present application includes a medium segment and a functional segment. The functional segment is provided at one end of the medium segment along the first direction. The functional segment is used to cool the aerosol generated by the medium segment. The medium segment is an integrated structure, and at least one first airway hole is provided inside the medium segment. The first airway hole runs through at least one end of the medium segment along the first direction. The medium segment provided in the embodiment of the present application is an integrated structure, which can improve the uniformity of the density of the medium segment and improve the stability of aerosol release and suction. In addition, the functional segment of the embodiment of the present application has a simple structure, which simplifies the structural design and process flow of the aerosol generating product and reduces the production cost.

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 prior art, the smoking materials of the smoking articles are generally particle type, cut tobacco type and sheet type, but the smoking section materials in the related art have more problems in the use process of users, for example, 1. The sheet type aerosol generating substrate is easy to be adhered to an appliance heating device in the use process and is easy to generate uneven aerosol release in the suction process of users, 2. The cut tobacco type aerosol generating substrate is easy to generate substrate falling-off in the use process and is easy to generate 'blocking' in the use process when being matched with a central heating appliance, 3. The particle type aerosol generating substrate is easy to generate the phenomenon of large uniformity difference of filling particles in the production and processing process, and the phenomena of easy falling off of seals, easy moisture absorption, easy adhesion, agglomeration and the like are also generated in the use process.

In addition, the functional section structure design of the existing smoking article is complex, so that the process flow is complex, and the manufacturing cost is high.

Disclosure of Invention

In view of the above, it is desirable to provide an aerosol-generating article that can simplify the process flow and reduce the production costs.

To achieve the above object, an embodiment of the present application provides an aerosol-generating article, the aerosol-generating article includes a medium section and a functional section, one end of the medium section along a first direction is provided with the functional section, the functional section is configured to cool aerosol generated by the medium section, the medium section is in an integral structure, at least one first air passage hole is provided in the medium section, and the first air passage hole penetrates through at least one end of the medium section along the first direction.

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.

In one embodiment, the media segment and the functional segment are separable structures.

In one embodiment, the functional section is an integrated structure formed by extrusion, and the functional section is provided with at least one second air passage hole inside, and the second air passage hole penetrates through at least one end of the functional section along the first direction.

In one embodiment, the cross-sectional area of the second airway orifice is smaller than the cross-sectional area of the first airway orifice or the hydraulic diameter of the second airway orifice is smaller than the hydraulic diameter of the first airway orifice in a plane perpendicular to the first direction of the aerosol-generating article.

In one embodiment, at least a portion of the second airway orifice communicates with the first airway orifice.

In one embodiment, the circumferential outer surface of the functional segment is formed with air passage grooves penetrating opposite ends of the functional segment in the first direction.

In one embodiment, the composition of the functional segment is the same as the composition of the media segment.

In one embodiment, a channel is arranged in the functional section, and penetrates through two ends of the functional section along the first direction;

The cross-sectional area of the channel is greater than the cross-sectional area of the individual first airway holes or the hydraulic diameter of the channel is greater than the hydraulic diameter of the individual first airway holes in a plane perpendicular to the first direction of the aerosol-generating article.

In one embodiment, the functional section is of a solid structure and is provided with a plurality of micropores, or the medium section and the functional section are arranged at intervals so as to define a cavity.

In one embodiment, the aerosol-generating article comprises a coating layer that is coated circumferentially outside the media segment, the coating layer and the media segment being of unitary construction.

In one embodiment, the aerosol-generating article comprises a wrapping layer wrapped circumferentially outside the media segment and the functional segment.

The embodiment of the application provides an aerosol generating product, which comprises a medium section and a functional section, wherein the functional section is arranged at one end of the medium section along a first direction, the medium section generates aerosol when being heated, the functional section is used for cooling the aerosol generated by the medium section, the problem of mouth scalding is avoided, the functional section can also have the functions of supporting and/or filtering, and the use experience of a user is improved.

The medium section of the aerosol-generating product provided by the embodiment of the application is of an integrated structure, for example, the integrated structure can be formed by extrusion, die casting or injection molding process, so that the uniformity of the density of the medium section is improved, and the stability of aerosol release and suction is improved. In addition, 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.

Drawings

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

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

Fig. 5 is a schematic drawing in section of an aerosol-generating article according to a fourth embodiment of the application;

Fig. 6 is a schematic drawing in section of an aerosol-generating article according to a fifth embodiment of the application;

fig. 7 is a schematic drawing in section of an aerosol-generating article according to a sixth embodiment of the application;

Fig. 8 is a schematic drawing in section of an aerosol-generating article according to a seventh embodiment of the application.

Description of the reference numerals

10. Medium section 10a, first air passage hole 20, functional section 20a, second air passage hole 20b, passage 30, coating layer 40, coating layer 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. 1-8, comprising a media segment 10 and a functional segment 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 and/or filtering aerosols, the functional segment 20 being for example a cooling segment.

Of course, the functional section 20 may also be a filter section, and it is understood that the filter section is disposed at one end of the medium section and has a function of cooling the aerosol.

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.

Illustratively, the medium segment 10 and the functional segment 20 are in separable structures, which are not connected together by mechanical, physical structures or adhesives, but the medium segment 10 and the functional segment 20 can be in contact, and the medium segment 10 and the functional segment 20 are in combined structures, so that different medium segments 10 and different functional segments 20 can be reasonably matched to meet different sucking demands of customers.

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 segment 10 has at least one first air passage hole 10a therein, and referring to fig. 2 to 8, the first air passage hole 10a penetrates at least one end of the medium segment 10 along the first direction.

The medium segment 10 has at least one first air passage hole 10a therein, and the medium segment 10 may have one first air passage hole 10a therein, or may have a plurality of first 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 first air passage holes 10a extend through the same end of the media segment 10 in the first direction, and the other ends are all closed.

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

In still other embodiments, referring to fig. 2 to 8, each first air passage hole 10a extends through two ends of the medium segment 10 along the first direction, that is, the first air passage holes 10a extend along the first direction of the medium segment 10, and air flow may flow from one end of the medium segment 10 to the other end of the medium segment 10 through the first air passage holes 10 a. Preferably, the first air passage holes 10a are parallel to the central axis of the media segment 10.

The first gas passage holes 10a described above are holes in a macroscopic sense, the micropores are holes in a microscopic sense, and the cross-sectional area of the first gas passage holes 10a is much larger than the cross-sectional area of the micropores. The size of the micropores is determined by the particle-to-particle gaps.

It should be noted that the shape of the first air passage hole 10a is not limited herein, and illustratively, the cross-sectional shape of the first air passage hole 10a in a plane perpendicular to the first direction of the media segment 10 includes, but is not limited to, a circle (as in fig. 2 to 8), 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.

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

Specifically, the aerosol-generating device includes a housing and a power supply assembly disposed in the housing, the housing having a housing compartment, an electrical energy output portion of the power supply assembly being disposed in or around a sidewall of the housing compartment, and when the aerosol-generating article 100 is inserted into the housing compartment at a location corresponding to a first direction range in which the media segment 10 is located, the electrical energy output portion transmits electrical energy to a heating assembly in a contact or non-contact manner, and the heating assembly receives energy from the outside to generate heat, thereby heating the media segment 10 and generating aerosol.

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 embodiment of the application provides an aerosol generating product, the aerosol generating product 100 comprises a medium section 10 and a functional section 20, one end of the medium section 10 along a first direction is provided with the functional section 20, the medium section 10 generates aerosol when heated, the functional section 20 is used for cooling the aerosol generated by the medium section, the problem of mouth scalding is avoided, the functional section 20 can also have the functions of supporting and/or filtering, and the use experience of a user is improved.

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 of the aerosol-generating article according to the embodiment of the present application is an integral structure, for example, the integral structure may 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 unitary 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. Furthermore, 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.

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 first air passage holes 10a can increase the surface area of the medium section 10, facilitate heat transfer, and improve heating efficiency. Aerosol in the first air passage hole 10a is conveyed to the suction end under the action of suction negative pressure, and the first air passage hole 10a can reduce suction resistance of user suction 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.

The medium segment 10 is formed with micropores, and the micropores are communicated with each other and form micro air passages communicated with the first air passage holes 10 a. That is, the micro air passage communicates with the first air passage hole 10a, and since the micro air passage is formed by communication between micro holes, the micro holes communicate with the passage 10 a. 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 first 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 first air passage holes 10a through gaps among wall materials or micro air passages, the aerosol released by the atomized medium exposed to the first air passage holes 10a (i.e. the atomized medium positioned on the inner wall surface of the first air passage holes 10 a) can be directly released to the first air passage holes 10a, and the aerosol between adjacent first air passage holes 10a can also circulate mutually through the micro air passages and is conveyed to the suction end under the action of suction negative pressure.

Illustratively, the profile of the media segment 10 is the same as the profile of the functional segment 20. That is, the outer shape of the medium section 10 is the same as the outer shape of the functional section 20, and the outer shape of the medium section 10 is the same as the outer shape of the functional section 20, for example, when the outer shape of the medium section 10 and the outer shape of the functional section 20 are both cylindrical, the outer diameter of the medium section 10 is the same as the outer diameter of the functional section 20. In this way, the cooperation between the media segment 10 and the functional segment 20 is facilitated.

For example, in some embodiments, referring to fig. 4 and 5, 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.

Referring to fig. 4 and 5, the functional section 20 has at least one second air passage hole 20a therein, and the second air passage hole 20a penetrates at least one end of the functional section 20 along the first direction.

The functional section 20 has at least one second air passage hole 20a therein, and may have one second air passage hole 20a in the functional section 20 or may have a plurality of second air passage holes 20a in the functional section 20.

In some embodiments, the second air passage holes 20a are all closed through the same end of the functional segment 20 in the first direction.

In other embodiments, a portion of the second air passage holes 20a extend through one end of the functional segment 20 in the first direction, and another portion of the second air passage holes 20a extend through the other end of the functional segment 20 in the first direction.

In still other embodiments, referring to fig. 4 and 5, each of the second air passage holes 20a extends through the functional section 20 along the two ends of the first direction, that is, the second air passage holes 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 second air passage holes 20 a. Preferably, the second air passage hole 20a is parallel to the central axis of the functional segment 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 second air passage holes 20 a.

The first air passage hole 10a and the second air passage hole 20a described above are holes in a macroscopic sense, and the micropores are holes in a microscopic sense, and the cross-sectional area of the first air passage hole 10a is much larger than that of the micropores. The size of the micropores is determined by the particle-to-particle gaps.

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

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

It should be noted that the shape of the second air passage hole 20a is not limited herein, and illustratively, in a plane perpendicular to the first direction of the functional segment 20, the cross-sectional shape of the second air passage hole 20a includes, but is not limited to, at least one of a circle (as in fig. 4 and 5), an ellipse, a racetrack, an elongated shape, a polygon, and a fan shape, wherein the polygon includes a regular or irregular polygon.

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

In addition, the cross-sectional shapes of the second air passage holes 20a may be identical, or the cross-sectional shapes of at least two second air passage holes 20a may be different, for example, the cross-sectional shape of at least one second air passage hole 20a may be circular, and the cross-sectional shape of at least one second air passage hole 20a may be polygonal.

To facilitate the flow of aerosol generated by heating of the media segment 10 directly from the second airway aperture 20a of the functional segment 20 for user inhalation. Illustratively, at least a portion of the second airway aperture 20a communicates with the first airway aperture 10 a. I.e. projected on a plane perpendicular to the first direction of the aerosol-generating article 100, the second airway aperture 20a overlaps at least part of the orthographic projection of the first airway aperture 10 a.

It should be noted that, the communication between the second air passage hole 20a and the first air passage hole 10a described herein means direct communication.

Illustratively, the cross-sectional area of the single second airway orifice 20a is smaller than the cross-sectional area of the single first airway orifice 10a, or the hydraulic diameter of the single second airway orifice 20a is less than or equal to the hydraulic diameter of the single first airway orifice 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 second air passage holes 20a is greater than the number of first air passage holes 10a, and that a greater number of second air passage holes 20a with a smaller cross-sectional area is more advantageous for cooling and filtering the aerosol and for adjusting the resistance to draw of the aerosol-generating article 100.

Illustratively, the circumferential outer surface of the functional segment 20 is formed with air passage grooves extending through opposite ends of the functional segment 20 in the first direction. The arrangement of the air passage groove can increase the contact area of the aerosol and the functional section 20, reduce the flow velocity of the aerosol, and is more beneficial to reducing the temperature of the aerosol.

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

Referring to fig. 1,2 and 8, the functional section 20 is provided with a channel 20b inside, and the channel 20b penetrates through two ends of the functional section 20 along the first direction. Preferably, the center line of the channel 20b coincides or substantially coincides with the center axis of the functional segment 20 in the first direction.

Illustratively, the cross-sectional area of the passageway 20b is greater than the cross-sectional area of the single first airway aperture 10a in a plane perpendicular to the first direction of the aerosol-generating article 100. Or the hydraulic diameter of the passage 20b is larger than that of the single first air passage hole 10 a.

That is, the functional section 20 is internally provided with the channels 20b with larger apertures, the channels 20b penetrate through the two ends of the functional section 20 along the first direction, the aerosol generated by the medium section 10 can flow into the channels 20b for cooling, and the aerosol is favorable for gathering towards the center and being pumped, the aerosol agglomerating property is better, and the aerosol generated by the medium section 10 can be effectively extracted from the channels 20b of the functional section 20 for user pumping.

In particular, in order to facilitate the aerosol generated by the heating of the media segment 10 to flow directly from the channel 20b of the functional segment 20 for user inhalation. Referring to fig. 1,2 and 8, at least a portion of the first airway aperture 10a is in communication with the channel 20 b. I.e. projected on a plane perpendicular to the first direction of the aerosol-generating article 100, the channel 20b overlaps at least part of the orthographic projection of the first gas passage hole 10 a.

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

Illustratively, in some embodiments, the functional segment 20 is internally provided with a channel 20b, the channel 20b extending through both ends of the functional segment 20 in the first direction, and a corrugated structure is provided between the side wall of the channel 20b and the outer side wall of the functional segment 20, the corrugated structure extending in the first direction of the functional segment 20. That is, both the channels 20b and the corrugated structure extend in a first direction, and the aerosol generated by the media segment 10 is able to flow through the channels 20b or the corrugated structure for cooling.

The corrugated structure 21b is, for example, a structure that is located between the side wall of the passage 20b and the outer side wall of the functional section 20 and has a wavy cross section.

A corrugated structure is arranged between the side wall of the channel 20b and the outer side wall of the functional section 20, and the corrugated structure is uniformly distributed on the periphery of the channel 20b, so that the functions of supporting and cooling are realized, and in addition, the function of adjusting the absorption resistance is realized.

For example, referring to fig. 3, 6-8, the functional segment 20 is a tow-type structure. In some embodiments, referring to fig. 6 and 7, the tow-type structure is, for example, a solid acetate fiber structure, and an airflow aperture is formed through a gap between tows of the solid acetate fiber structure, so that aerosol generated by the medium section 10 can pass through the airflow aperture to be sucked by a user, and the size of the airflow aperture is smaller than that of the first air passage hole 10a, so that the aerosol has a function of adjusting the suction resistance.

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.

Referring to fig. 3 and 8, the tow-type structure is, for example, a hollow acetate fiber structure. 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 between the tows of the hollow acetate fiber structure form air flow pores, and the hollow acetate fiber structure is provided with channels 20b penetrating through the two ends of the hollow acetate fiber structure along the first direction, and aerosol generated by the medium section 10 can pass through the hollow acetate fiber structure through the air flow pores and the channels 20 b.

It should be noted that the air flow pores formed in the solid acetate fiber structure and the hollow acetate fiber structure may be macroscopic pores or microscopic pores, i.e. pores which cannot be directly identified by naked eyes.

When the functional section 20 is of a hollow acetate fiber structure or a solid acetate fiber structure, the support and cooling functions are realized, and aerosol is extracted rapidly.

Referring to fig. 2, when the functional section 20 is of a hollow structure, such as a hollow paper tube, the supporting and cooling functions are advantageously realized, a larger channel 20b structure is formed, and the function of buffering aerosol is provided, which is advantageous for increasing the total amount of aerosol generated.

The material of the functional segment 20 is, for example, acetate, PET (polyethylene terephthalate), resin, or the like.

In some embodiments, referring to fig. 6 and 7, the functional segment 20 is solid in structure and is provided with a plurality of micro-holes.

Micropores are microscopic in the sense of pores.

The micro-holes are communicated with each other and form micro-air passages, at least part of the micro-air passages directly penetrate through the two ends of the functional section 20 along the first direction, so that air flow can pass through the functional section 20 through the micro-air passages.

The micro air passage formed by the micro holes can adjust the suction resistance, and increase the surface area in the functional section 20, so that the filtering effect of the functional section 20 is improved, and meanwhile, the cooling effect on aerosol is improved, and the user experience is improved.

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.

The solid construction of the functional segment 20 is advantageous in that the structural strength of the functional segment 20 is improved so that it can lengthen the length of the gas medium segment 10 as much as possible while shortening the length of the functional segment 20 on the basis of the unchanged length dimension of the aerosol-generating article 100.

Illustratively, the media segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

That is, the medium segment 10 and the functional segment 20 are disposed at a distance from each other, and the medium segment 10 and the functional segment 20 are surrounded by the wrapping layer 30 on the peripheral sides thereof to form a cavity 100a. It can be appreciated that by forming the cavity 100a between the medium segment 10 and the functional segment 20, the aerosol generated by heating the medium segment 10 can flow into the cavity 100a, and the aerosol generated by the medium segment 10 can be buffered by the arrangement of the cavity 100a, so that extraction of the aerosol can be facilitated, and the utilization rate of the medium segment 10 can be improved. In addition, the arrangement of the cavity 100a can increase the contact area between the air flow flowing out of the medium section 10 and the aerosol-generating product 100, thereby playing a better cooling effect, and meanwhile, the function section 20 is prevented from being in direct contact with the medium section 10, so that the probability of deposition of the aerosol on the end surfaces of the function section 20 and the medium section 10 is reduced, and the loss of the aerosol in the transmission process is reduced.

For example, referring to fig. 1-8, an aerosol-generating article 100 includes a wrapping layer 30, the wrapping layer 30 wrapping around the circumferential surfaces of the media segment 10 and the functional segment 20.

The wrapping layer 30 has a certain hardness, can play a certain role in protecting the medium section 10, and reduces the surface area of the medium section 10 directly exposed to the outside, so that the probability of moisture deterioration caused by contact of the medium section 10 with air is reduced, and meanwhile, the probability of pollution caused by contact of the medium section 10 with other components in the aerosol generating device is reduced.

Illustratively, referring to fig. 8, the aerosol-generating article 100 comprises a coating 40 applied to the circumferential surface of the media segment 10. Can better prevent the aerosol from extravasation and improve the extraction efficiency and the utilization rate of the aerosol.

The cover 40 is sandwiched between the cover 30 and the media segment 10. That is, in addition to the wrapping 30 wrapping the circumferential surfaces of the media segment 10 and the functional segment 20, there is a separate inner wrapping 40 on the media segment 10, the wrapping 40 being sandwiched between the wrapping 30 and the media segment 10,

It should be noted that the medium section 10 and the cladding layer 40 may be a unitary structure. That is, the media segment 10 and the cover 40 are different portions of a unitary structure. In this way, on one hand, the relative positions of the medium section 10 and the coating layer 40 are fixed, so that the probability of detachment of the medium section 10 and the coating layer 40 due to temperature change, vibration and other factors in the use process of the aerosol-generating product 100 can be reduced, and on the other hand, the medium section 10 and the coating layer 40 can be synchronously prepared, so that manufacturing steps are reduced, and production efficiency is improved.

For example, in some embodiments, the unitary structure of the media segment 10 and the cladding 40 is formed by a coextrusion process. Compared with the wrapping layer 40 wrapped and rolled outside the circumference of the medium section 10, the co-extrusion process is simpler to process, the function section 20 is tightly attached to the medium section 10, and the energy utilization rate is higher.

In other embodiments, the media segment 10 and the cover 40 may be molded separately and secondarily compounded.

In still other embodiments, the media segment 10 and the cover 40 may be of a split construction.

The specific material of the coating layer 40 is not limited, and may be a functional material, such as aluminum foil, light absorbing material, heat conducting material, etc.

Wherein, the light absorbing material can be made of materials containing titanium dioxide, carbon powder, aluminum oxide, iron powder, aluminum and the like.

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. 2, in this embodiment, the aerosol-generating article 100 comprises a media segment 10 and a functional segment 20 arranged along a first direction. 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.

At least one first air passage hole 10a is formed in the medium section 10, and the first air passage hole 10a penetrates through at least one end of the medium section 10 along 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 first 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 functional segments 20 are hollow structures, for example hollow paper tubes.

The inside of the functional section 20 is provided with a passage 20b, the passage 20b penetrating both ends of the functional section 20 in the first direction. Preferably, the center line of the channel 20b coincides or substantially coincides with the center axis of the functional segment 20 in the first direction.

Illustratively, the cross-sectional area of the passageway 20b is greater than the cross-sectional area of the first airway aperture 10a in a plane perpendicular to the first direction of the aerosol-generating article 100. Or the hydraulic diameter of the passage 20b is larger than the hydraulic diameter of the first airway orifice 10 a.

That is, the functional section 20 is internally provided with the channels 20b with larger apertures, the channels 20b penetrate through the two ends of the functional section 20 along the first direction, the aerosol generated by the medium section 10 can flow into the channels 20b for cooling, and the aerosol is favorable for gathering towards the center and being pumped, the aerosol agglomerating property is better, and the aerosol generated by the medium section 10 can be effectively extracted from the channels 20b of the functional section 20 for user pumping.

In particular, in order to facilitate the aerosol generated by the heating of the media segment 10 to flow directly from the channel 20b of the functional segment 20 for user inhalation. Illustratively, at least a portion of the first airway aperture 10a communicates with the channel 20 b. I.e. projected on a plane perpendicular to the first direction of the aerosol-generating article 100, the channel 20b overlaps at least part of the orthographic projection of the first gas passage hole 10 a.

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

The medium section 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, external air flow such as air can enter the medium section 10 through the first air passage hole 10a to diffuse, aerosol generated by a medium (namely, a part of the medium section 10 exposed to the first air passage hole 10 a) surrounded by the first air passage hole 10a of the medium section 10 directly enters the first air passage hole 10a, and aerosol generated by other parts (namely, a part of the medium section not exposed to the first air passage hole 10 a) of the medium section 10 can be collected into the first air passage hole 10a through micropores. As such, during the suction process, the aerosol collected within the first airway aperture 10a flows into the channel 20b of the functional segment 20, is cooled/filtered, and then enters the user's mouth.

Second embodiment

Referring to fig. 3, 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 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 between the tows of the hollow acetate fiber structure form air flow pores, and the hollow acetate fiber structure is provided with channels 20b penetrating through the two ends of the hollow acetate fiber structure along the first direction, and aerosol generated by the medium section 10 can pass through the hollow acetate fiber structure through the air flow pores and the channels 20 b.

It should be noted that the air flow pores formed in the solid acetate fiber structure and the hollow acetate fiber structure may be macroscopic pores or microscopic pores, i.e. pores which cannot be directly identified by naked eyes.

Third embodiment

Referring to fig. 4, the aerosol-generating article 100 of this embodiment is generally identical in structure to the first embodiment, except that the functional segments 20 of this embodiment may be extruded as a 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.

Referring to fig. 4, the functional segment 20 has at least one second air passage hole 20a therein, and the second air passage hole 20a penetrates at least one end of the functional segment 20 along the first direction.

The functional section 20 has at least one second air passage hole 20a therein, and may have one second air passage hole 20a in the functional section 20 or may have a plurality of second air passage holes 20a in the functional section 20.

To facilitate the flow of aerosol generated by heating of the media segment 10 directly from the second airway aperture 20a of the functional segment 20 for user inhalation. Illustratively, at least a portion of the second airway aperture 20a communicates with the first airway aperture 10 a. I.e. projected on a plane perpendicular to the first direction of the aerosol-generating article 100, the second airway aperture 20a overlaps at least part of the orthographic projection of the first airway aperture 10 a.

It should be noted that, the communication between the second air passage hole 20a and the first air passage hole 10a described herein means direct communication.

Illustratively, the cross-sectional area of the second airway orifice 20a is smaller than the cross-sectional area of the first airway orifice 10a, or the hydraulic diameter of the second airway orifice 20a is smaller than or equal to the hydraulic diameter of the first airway orifice 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 second air passage holes 20a is greater than the number of first air passage holes 10a, and that a greater number of second air passage holes 20a with a smaller cross-sectional area is more advantageous for cooling and filtering the aerosol and for adjusting the resistance to draw of the aerosol-generating article 100.

Fourth embodiment

Referring to fig. 5, 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.

Fifth embodiment

Referring to fig. 6, the aerosol-generating article 100 according to the present embodiment has a structure substantially the same as that of the first embodiment, except that in the present embodiment, the functional section 20 has a solid structure and a plurality of micropores, or the functional section 20 has a tow-type structure, such as a solid acetate fiber structure.

Micropores are microscopic in the sense of pores.

The micro-holes are communicated with each other and form micro-air passages, at least part of the micro-air passages directly penetrate through the two ends of the functional section 20 along the first direction, so that air flow can pass through the functional section 20 through the micro-air passages.

The functional segments 20 of the solid acetate fiber structure may be a solid structure formed by a plurality of acetate fiber tows arranged side by side. The gaps among tows of the solid acetate fiber structure form airflow pores, and aerosol generated by the medium section 10 can pass through the solid acetate fiber structure through the airflow pores, so that the aerosol has the function of adjusting the absorption resistance.

Sixth embodiment

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

Seventh embodiment

Referring to fig. 8, the structure of the aerosol-generating article 100 according to this embodiment is substantially the same as that of the second embodiment, except that in this embodiment, the aerosol-generating article 100 includes a coating layer 40, the coating layer 40 is coated on the circumferential outer portion of the medium section 10, and the coating layer 40 and the medium section 10 are integrally formed.

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 (11)

1. The aerosol generating product is characterized by comprising a medium section and a functional section, wherein one end of the medium section along a first direction is provided with the functional section, the functional section is used for cooling and/or filtering aerosol generated by the medium section, the medium section is of an integrated structure, at least one first air passage hole is formed in the medium section, and the first air passage hole penetrates through at least one end of the medium section along the first direction.

2. An aerosol-generating article according to claim 1, wherein the media segment and the functional segment are cylinders of uniform outer diameter and coaxially arranged, the first direction being axial of the media segment and the functional segment.

3. An aerosol-generating article according to claim 1, wherein the media segment and the functional segment are separable structures.

4. An aerosol-generating article according to any of claims 1-3, wherein the functional segment is of unitary construction and has at least one second airway aperture in the interior thereof extending through at least one end of the functional segment in the first direction.

5. An aerosol-generating article according to claim 4, wherein,

In a plane perpendicular to the first direction of the aerosol-generating article, the cross-sectional area of a single second airway orifice is smaller than the cross-sectional area of a single first airway orifice, or the hydraulic diameter of a single second airway orifice is smaller than the hydraulic diameter of a single first airway orifice.

6. An aerosol-generating article according to claim 4, wherein at least part of the second airway aperture is in communication with the first airway aperture.

7. An aerosol-generating article according to claim 4, wherein the circumferential outer surface of the functional segment is formed with air passage grooves extending through opposite ends of the functional segment in the first direction and/or wherein the composition of the functional segment is the same as the composition of the media segment.

8. An aerosol-generating article according to claim 1, wherein the functional segment is internally provided with channels extending through both ends of the functional segment in a first direction;

The cross-sectional area of the channel is greater than the cross-sectional area of the individual first airway holes or the hydraulic diameter of the channel is greater than the hydraulic diameter of the individual first airway holes in a plane perpendicular to the first direction of the aerosol-generating article.

9. An aerosol-generating article according to claim 1, wherein the functional segments are of solid construction and are provided with a plurality of micro-holes, or wherein the media segments and the functional segments are spaced apart to define a cavity.

10. An aerosol-generating article according to claim 1, comprising a coating layer that is coated circumferentially outside the media segment, the coating layer and the media segment being of unitary construction.

11. An aerosol-generating article according to claim 1, comprising a wrapping layer wrapped circumferentially outside the media segment and the functional segment.