Aerosol generating product and aerosol generating device

Abstract

Embodiments of the present application provide an aerosol generating product and an aerosol generating device. The aerosol generating product comprises a medium segment and a function segment; the function segment is arranged at one end of the medium segment in a first direction; the function segment includes a cooling segment and a filtering segment; the cooling segment is located between the filtering segment and the medium segment; the medium segment and the filtering segment are both of an integrated structure; at least one first air channel hole is formed in the medium segment; and at least one second air channel hole is formed in the filtering segment. The medium segment and the filtering segment of the aerosol generating product provided by the embodiments of the present application are both of an integrated structure, at least one first air channel hole is formed in the medium segment, and at least one second air channel hole is formed in the filtering segment, so that the porosity of the medium segment and the porosity of the filtering segment can be controlled; and the vaping resistance of the aerosol generating product can be adjusted by controlling the porosity of the medium segment and the porosity of the filtering segment. In addition, the porosity of the integrated structure is stable, so that the consistency of vaping resistance of the aerosol generating product can be improved.

Description

Aerosol generating product and aerosol generating device

[0001] This application is based on the Chinese patent application with application number 202310928585.2 and application date of July 26, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by reference. Technical Field

[0002] The present application relates to the technical field of smoking products, and in particular to an aerosol generating product and an aerosol generating device. Background Art

[0003] Smoking articles include smoking articles that form aerosols by ignition and smoking articles that form aerosols by heating without burning. In a typical heat-without-burning smoking article, it contains an aerosol-generating substrate that can evaporate when heated to generate an aerosol and a filter segment. The filter segment cooperates with the aerosol-generating substrate to achieve the inhalation of the aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated to a degree just sufficient to emit a fragrance. The aerosol-generating substrate does not burn, but instead releases the aerosol by loading an atomizer and heating it at high temperature to form smoke when used.

[0004] In the existing technology, the structures of the aerosol generating matrix and the filtering segment are quite different. For example, the aerosol matrix is ​​made of dispersed plant leaf shreds wrapped together, and the filtering segment is made of acetate fiber or material. The porosity of the two is used to adjust the draw resistance of the smoking product. The porosity of the dispersed structure is unstable, which affects the consistency of the draw resistance of the smoking product.

[0005] Summary of the Invention

[0006] In view of this, the present application hopes to provide an aerosol-generating product and an aerosol-generating device that can improve the consistency of draw resistance.

[0007] To achieve the above objectives, an embodiment of the present application provides an aerosol-generating article, comprising a medium segment and a functional segment, wherein the functional segment is provided at one end of the medium segment along a first direction, the functional segment comprising a cooling segment and a filtering segment, the cooling segment being located between the filtering segment and the medium segment, and the medium segment and the filtering segment being both integrally formed.

[0008] At least one first airway hole is provided inside the media segment, and the first airway hole passes through at least one end of the media segment along the first direction; at least one second airway hole is provided inside the filter segment, and the second airway hole passes through at least one end of the filter segment along the first direction.

[0009] In one embodiment, the medium section, the cooling section and the filtering section are separable structures.

[0010] In one embodiment, in a plane perpendicular to the first direction of the aerosol-generating article, the sum of the cross-sectional areas of all the first airway holes is greater than or equal to the sum of the cross-sectional areas of all the second airway holes.

[0011] In one embodiment, the number of the first airway holes is less than or equal to the number of the second airway holes.

[0012] In one embodiment, in a plane perpendicular to the first direction of the aerosol-generating article, the cross-sectional area of ​​a single first airway hole is greater than or equal to the cross-sectional area of ​​a single second airway hole.

[0013] In one embodiment, the hydraulic diameter of a single first airway hole is greater than or equal to the hydraulic diameter of a single second airway hole.

[0014] In one embodiment, the aerosol-generating article has at least one cavity defined therein.

[0015] In one embodiment, the medium section and the temperature reduction section are spaced apart to define the cavity.

[0016] In one embodiment, the filtering section and the cooling section are spaced apart to define the cavity.

[0017] In one embodiment, the cavity is provided at least at one end of the medium section away from the cooling section.

[0018] In one embodiment, the cavity is provided at least at one end of the filtering section away from the cooling section.

[0019] In one embodiment, a channel is provided inside the cooling section, the channel runs through both ends of the cooling section along the first direction, a corrugated structure is provided between the side wall of the channel and the outer wall of the cooling section, and the corrugated structure extends along the first direction of the cooling section.

[0020] In one embodiment, a groove is formed on the circumferential outer surface of the cooling section, and the groove runs through two opposite ends of the cooling section along the first direction.

[0021] In one embodiment, the cooling section is one of a hollow acetate fiber structure, a solid acetate fiber structure or a hollow paper tube.

[0022] In one embodiment, the suction resistance of the medium segment is less than or equal to the suction resistance of the filter segment.

[0023] In one embodiment, the absorption resistance of the dielectric segment ranges from 10Pa to 100Pa.

[0024] In one embodiment, the suction resistance of the filtration section ranges from 50Pa to 300Pa.

[0025] In one embodiment, the aerosol-generating article has a draw resistance in the range of 500 Pa to 1100 Pa.

[0026] In one embodiment, the medium section, the cooling section, and the filtering section are cylindrical and coaxially arranged, and the first direction is the axial direction of the three.

[0027] An embodiment of the present application further provides an aerosol generating device for use with the aerosol generating article described above. The aerosol generating device includes a heating component, which is used to heat the medium segment to generate an aerosol.

[0028] An embodiment of the present application provides an aerosol generating product, which includes a medium segment and a functional segment. The functional segment is provided at one end of the medium segment along a first direction. The functional segment includes a cooling segment and a filtering segment. The cooling segment is located between the filtering segment and the medium segment. The medium segment will generate aerosol when heated. The cooling segment is used to cool the aerosol to reduce the temperature of the aerosol and improve the "burning mouth" phenomenon when the user inhales the aerosol. The filtering segment is used to filter the aerosol after the cooling segment.

[0029] The aerosol-generating article provided in the embodiments of the present application comprises an integrated structure comprising both the media section and the filter section. By providing at least one first airway aperture within the media section and at least one second airway aperture within the filter section, the porosity of the media section and the filter section can be controlled. By controlling the porosity of the media section and the filter section, the draw resistance of the aerosol-generating article can be adjusted, thereby satisfying the user's sensory requirements for natural and smooth inhalation, smoke permeability, and comfort during inhalation, thereby enhancing the user's experience. Furthermore, since both the media section and the filter section are integrated, the porosity of the integrated structure is relatively stable, thereby improving the consistency of the draw resistance of the aerosol-generating article.

[0030] Furthermore, the first airway hole increases the surface area of ​​the media segment, facilitating heat transfer and improving heating efficiency. The integrated filter segment, by providing a second airway hole, facilitates targeted filtration of aerosols, enhancing the on-demand delivery and transfer of aerosol active ingredients. This also addresses the issue of existing filter segments filtering aerosols through physical tow apertures, which can result in some active ingredients being filtered out. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is a schematic structural diagram of an aerosol generating article according to an embodiment of the present application;

[0032] FIG2 is a cross-sectional view of the aerosol-generating article shown in FIG1 , wherein dashed arrows indicate the direction of airflow in the aerosol-generating article;

[0033] FIG3 is a cross-sectional schematic diagram of an aerosol-generating article in a second embodiment of the present application;

[0034] FIG4 is a cross-sectional schematic diagram of an aerosol-generating article in a third embodiment of the present application;

[0035] FIG5 is a cross-sectional schematic diagram of an aerosol-generating article in a fourth embodiment of the present application;

[0036] FIG6 is a cross-sectional schematic diagram of an aerosol-generating article in a fifth embodiment of the present application;

[0037] FIG7 is a cross-sectional schematic diagram of an aerosol-generating article in a sixth embodiment of the present application;

[0038] FIG8 is a cross-sectional schematic diagram of an aerosol generating article in a seventh embodiment of the present application;

[0039] FIG9 is a schematic cross-sectional view of an aerosol-generating article in an eighth embodiment of the present application;

[0040] FIG10 is a schematic structural diagram of the cooling section shown in FIG6 ;

[0041] FIG11 is a schematic cross-sectional view of a groove according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0043] In the description of this application, the "first direction" orientation or position relationship is based on the orientation or position relationship shown in Figures 1 and 2. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on this application.

[0044] An embodiment of the present application provides an aerosol generating product, as shown in Figures 1 to 9, which includes a medium segment 10 and a functional segment 20.

[0045] It should be noted that the aerosol-generating article 100 relies on the medium segment 10 to generate aerosol, and the functional segment 20 is not used to generate aerosol.

[0046] It should be noted that the aerosol generating article 100 of the embodiment of the present application can be used for inhalation by ignition or by heat-without-combustion. In the embodiment of the present application, the aerosol generating article 100 used for inhalation by heat-without-combustion is described as an example.

[0047] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0048] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0049] In the embodiment of the present application, the dielectric segment 10 is generally cylindrical, which may be a cylindrical shape (i.e., a circular cross-section), a prismatic shape (i.e., a polygonal cross-section), an elliptical cylinder (i.e., an elliptical cross-section), etc., without limitation.

[0050] The functional section 20 includes a cooling section 21 and a filtering section 22. The cooling section 21 is located between the filtering section 22 and the medium section 10. The cooling section 21 is used to cool the aerosol to reduce the temperature of the aerosol and improve the "burning mouth" phenomenon when the user inhales the aerosol. The filtering section 22 is used to filter the aerosol after the cooling section 21. It can be understood that since the aerosol flows through the filtering section, the filtering section also has the function of further cooling the aerosol.

[0051] Exemplarily, the medium segment 10, the cooling segment 21 and the filter segment 22 are separable structures, and the three are not connected together by mechanical, physical structures or adhesives, but two of them may be in contact. The medium segment 10, the cooling segment 21 and the filter segment 22 are a combined structure. Therefore, different medium segments 10 and different filter segments 22 can be reasonably matched to meet customer needs for different suction resistances.

[0052] The media segment 10 and the filter segment 22 are both integrally formed. In one embodiment, the media segment 10 is an extruded integral structure, and the filter segment 22 is also an extruded integral structure. In other words, the media segment 10 and the filter segment 22 are manufactured using the same processing technology. Compared to the prior art where the media segment and the filter segment are manufactured using different processing technologies, the use of the same processing technology for the media segment and the filter segment improves the production efficiency of the aerosol-generating article.

[0053] In other embodiments, the medium segment 10 and the filter segment may also be an integral structure formed by injection molding, die casting or other processes.

[0054] 2 to 9 , at least one first air passage hole 10a is provided inside the medium segment 10 , and the first air passage hole 10a passes through at least one end of the medium segment 10 along the first direction. That is, the first air passage hole 10a extends along the first direction of the medium segment 10 .

[0055] It should be noted that the number of the first airway holes 10a is not limited, and can be one or more.

[0056] It should be noted that the multiple mentioned in the embodiments of the present application refers to a number of two or more.

[0057] The first air duct hole 10a passes through at least one end of the medium segment 10 along the first direction, which means that the first air duct hole 10a can be passed through the opposite ends of the medium segment 10 along the first direction (please refer to Figures 2 to 9), and the air flow can flow from one end of the medium segment 10 along the first direction to the other end of the medium segment 10 along the first direction through the first air duct hole 10a.

[0058] Of course, one end of the first airway hole 10a may extend through the end surface of the media segment 10 along the first direction, while the other end of the first airway hole 10a is a blind end. Each first airway hole 10a may extend through the same end of the media segment 10 along the first direction. In other embodiments, some first airway holes 10a may extend through one end of the media segment 10 along the first direction, while another portion of the first airway holes 10a extends through the other end of the media segment 10 along the first direction.

[0059] It can be understood that, compared with the first airway hole 10a penetrating one end of the medium segment 10 along the first direction, the first airway hole 10a penetrating both ends of the medium segment 10 along the first direction is more conducive to reducing the user's suction resistance.

[0060] The first airway hole 10a can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The aerosol in the first airway hole 10a is transported to the suction end under the action of the suction negative pressure. The first airway hole 10a can reduce the user's suction resistance and improve the user experience. It should be noted that the suction resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the medium segment 10, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the medium segment 10, the greater the suction resistance experienced by the user.

[0061] It should be noted that the medium segment 10 is a particle assembly, and micropores are formed between the particles of the particle assembly, that is, the gaps between the particles constitute micropores, and the micropores are connected to form micro airways connected to the first airway hole 10a.

[0062] The first airway holes 10a and the micro-airways can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. When the medium in the medium segment 10 is heated, it releases aerosols, which are collected in the first airway holes 10a through the gaps between the wall materials or the micro-airways. The aerosols released by the atomized medium exposed to the first airway holes 10a (i.e., the atomized medium located on the inner wall surface of the airway holes) can be directly released into the first airway holes 10a. The aerosols between adjacent first airway holes 10a can also circulate through the micro-airways and be transported to the suction end under the action of the suction negative pressure.

[0063] 2 to 9 , at least one second airway hole 22a is provided inside the filter section 22 , and the second airway hole 22a passes through at least one end of the filter section 22 along the first direction. That is, the second airway hole 22a extends along the first direction of the filter section 22 .

[0064] By setting the second airway hole 22a, the contact area between the filter section 22 and the airflow is increased, so that the filter section 22 can better adsorb impurities entrained in the airflow, improve the filtering effect, and thus improve the user experience. At the same time, by controlling the design parameters of the second airway hole 22a, it is convenient to adjust the suction resistance.

[0065] It should be noted that the number of the second airway holes 22a is not limited, and can be one or more.

[0066] The second air duct hole 22a passes through at least one end of the filter segment 22 along the first direction, which means that the second air duct hole 22a can be the opposite ends of the filter segment 22 along the first direction (please refer to Figures 2 to 9), and the air flow can flow from one end of the filter segment 22 along the first direction through the second air duct hole 22a to the other end of the filter segment 22 along the first direction.

[0067] Of course, one end of the second airway hole 22a may penetrate the end surface of the filter segment 22 along the first direction, while the other end of the second airway hole 22a is a blind end. In other embodiments, some of the second airway holes 22a may penetrate one end of the filter segment 22 along the first direction, while another portion of the second airway holes 22a may penetrate the other end of the filter segment 22 along the first direction.

[0068] It can be understood that, compared with the second airway hole 22a penetrating one end of the filter segment 22 along the first direction, the second airway hole 22a penetrating both ends of the filter segment 22 along the first direction is more conducive to reducing the user's suction resistance.

[0069] It should be noted that the first airway holes 10a and the second airway holes 22a are pores in the macroscopic sense, while the micropores are pores in the microscopic sense. The cross-sectional areas of the first airway holes 10a and the second airway holes 22a are much larger than those of the micropores. The size of the micropores is determined by the gaps between particles.

[0070] The filter segment 22 is an integrated structure, and at least one second airway hole 22a is provided inside the filter segment 22. The second airway hole 22a passes through at least one end of the filter segment 22 along the first direction. The porous structure of the filter segment 22 formed in this way has the functions of adjusting the draw resistance of the cigarette and targeted filtering of harmful components in the aerosol (harmful components such as carbon monoxide, tar, etc.).

[0071] Exemplarily, the medium segment 10 is a particle combination, also referred to as a powder combination, and is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing ingredients such as a smoke agent and tobacco. The medium segment 10 is an integrated structure, for example, an integrated structure that can be formed by an extrusion process. Wherein, extrusion molding refers to adding a raw material mixture into an extruder, wherein the material is heated and plasticized by the action between the extruder barrel and the screw, is pushed forward by the screw, and continuously passes through a mold of the extruder discharge port to be made into various cross-section products or semi-finished products. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium segment 10 is heated and pumped or stops being heated, it is an integrated medium, and is not prone to the phenomenon of disintegration and falling, which solves the problems of the thin slice, filamentous component, granular component falling off, and being difficult to clean in the thin slice, filamentous component, granular component falling off, and the problem of uneven components in the prior art.

[0072] The filter segment 22 can be made of filter materials, such as acetate materials or PET and other polymers, and easily degradable plastic materials are made into porous materials. The filter segment 22 is an integrated structure. The filter segment 22 formed in this way has the technical effect of adjusting the suction resistance and targeted filtering of harmful components in aerosols (carbon monoxide, tar, etc.).

[0073] Exemplarily, referring to FIG. 1 to FIG. 9 , the aerosol generating article 100 includes a wrapping layer 30 , which wraps around the circumferential exterior of the functional segment 20 and the medium segment 10 .

[0074] The wrapping layer 30 can provide a certain degree of protection for the medium segment 10, reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 becoming damp and deteriorating due to contact with air. At the same time, it also reduces the probability of the medium segment 10 being contaminated by contact with other components in the aerosol generating device.

[0075] It should be noted that the media segment 10 and the wrapping layer 30 can be an integral structure. That is, the media segment 10 and the wrapping layer 30 are different parts of a single integral structure. This, on the one hand, stabilizes the relative position of the media segment 10 and the wrapping layer 30, thereby reducing the probability of separation between the media segment 10 and the wrapping layer 30 due to factors such as temperature fluctuations and vibration during use of the aerosol-generating article 100. On the other hand, the media segment 10 and the wrapping layer 30 can be manufactured simultaneously, thereby reducing the number of manufacturing steps and improving production efficiency.

[0076] For example, the integral structure of the media portion and the wrapping layer 30 is formed by a co-extrusion process.

[0077] Of course, the medium segment 10 and the wrapping layer 30 may also be a separate structure.

[0078] An embodiment of the present application further provides an aerosol generating device for use with the sol generating product provided in the embodiment of the present application. The aerosol generating device includes a heating component (not shown), which is used to heat the medium segment 10 to generate an aerosol.

[0079] Specifically, the aerosol generating device includes a shell and a power supply assembly arranged in the shell. The shell has a storage chamber. The power output part of the power supply assembly is arranged in the storage chamber or around the side wall of the storage chamber. When the aerosol generating product 100 is inserted into the storage chamber at a position corresponding to the first direction range where the medium segment 10 is located, the power output part transmits power to the heating assembly in a contact or non-contact manner. The heating assembly receives energy from the outside and generates heat, thereby heating the medium segment 10 and generating an aerosol.

[0080] In the embodiments of the present application, the first direction does not specifically refer to the direction in which the outer contour of the dielectric segment 10 is longest. Specifically, the functional segment 20 and dielectric segment 10 are arranged in the same direction as the first direction; the direction in which the aerosol-generating article 100 is inserted into the heating chamber and the direction in which the aerosol-generating article 100 is removed from the heating chamber are both parallel to the first direction. The length of the dielectric segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0081] For example, when the media segment 10 has a cylindrical profile, the first direction is the axial direction of the media segment 10. It should be noted that even when the axial length of the media segment 10 is less than its diameter, the first direction of the media segment 10 is still the axial direction. For another example, when the media segment 10 has a rectangular profile, the first direction is still the direction defined above, i.e., the arrangement direction of the functional segments 20 and the media segment 10, or the direction in which the aerosol-generating article 100 is placed in or removed from the heating chamber. The first direction of the media segment 10 can be any of the length, width, or height of the rectangular parallelepiped.

[0082] An embodiment of the present application provides an aerosol generating product, the aerosol generating product 100 includes a medium segment 10 and a functional segment 20. The functional segment 20 is provided at one end of the medium segment 10 along the first direction. The functional segment 20 includes a cooling segment 21 and a filtering segment 22. The cooling segment 21 is located between the filtering segment 22 and the medium segment 10. The medium segment 10 will generate aerosol when heated. The cooling segment 21 is used to cool the aerosol to reduce the temperature of the aerosol and improve the "hot mouth" phenomenon when the user inhales the aerosol. The filtering segment 22 is used to filter the aerosol after the cooling segment 21.

[0083] The media segment 10 and filter segment 22 of the aerosol-generating article 100 provided in the embodiments of the present application are both extruded, one-piece structures. By providing at least one first airway hole 10a within the media segment 10 and at least one second airway hole 22a within the filter segment 22, the porosity of the media segment 10 and the filter segment 22 can be controlled. By controlling the porosity of the media segment 10 and the filter segment 22, the draw resistance of the aerosol-generating article 100 can be adjusted, thereby satisfying the user's sensory requirements for natural and smooth inhalation, smoke permeability, and comfort during inhalation, thereby enhancing the user's experience. Furthermore, since the media segment 10 and the filter segment 22 are both one-piece structures, the porosity of the one-piece structure is relatively stable, thereby improving the draw resistance consistency of the aerosol-generating article 100.

[0084] Furthermore, the first airway holes 10a increase the surface area of ​​the media segment 10, facilitating heat transfer and improving heating efficiency. The integrated filter segment 22, by providing the second airway holes 22a, facilitates targeted filtration of aerosols, enhancing the on-demand delivery and transfer of aerosol active ingredients. This also addresses the issue of the prior art where the filter segment 22 filters aerosols through physical tow apertures, resulting in the partial filtration of active ingredients.

[0085] The specific components of the medium segment 10 are not limited here. For example, in one embodiment, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0086] The botanical ingredient is used to generate an aerosol when heated. The auxiliary ingredient provides a skeletal support for the botanical ingredient. The smoke-generating ingredient generates smoke when heated. The binder binds the various raw material components. The flavoring ingredient provides a characteristic aroma. In this way, the botanical ingredient and smoke-generating ingredient ensure aerosol production, while the flavoring ingredient enhances aroma release during inhalation, improving the user experience. The auxiliary ingredient not only improves the fluidity of the mixture but also makes the aerosol-generating matrix porous, facilitating aerosol extraction and flow. The binder ensures a stable mixture of the botanical ingredient and auxiliary ingredient, preventing a loose structure.

[0087] For example, the plant ingredients can be one or more combinations of powders formed from crushed tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust, and flavorful plants. Plant ingredients are the core source of flavor, and endogenous substances in plant ingredients can produce a physiological sense of satisfaction in users. Endogenous substances, such as alkaloids, enter the human bloodstream and stimulate the pituitary gland to produce dopamine, thereby achieving a physiological sense of satisfaction.

[0088] Illustratively, the auxiliary ingredient may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers can provide skeletal support for the plant ingredients and also have micropores, which can increase the porosity of the aerosol-forming matrix, thereby improving the aerosol release rate. Lubricants include one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the fluidity of the plant ingredient powder, reduce friction between the plant ingredient powders, and achieve a more uniform overall density distribution. They can also reduce the pressure required during the extrusion molding process, thereby reducing wear on the die 132. Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to a certain extent, slow the loss of flavoring substances during storage, increase the stability of flavoring substances, and enhance the sensory quality of the product.

[0089] Exemplarily, the smoke-generating agent component may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, tributyrin); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, lauryl acetate). One or more combinations thereof.

[0090] Illustratively, the adhesive component wets the interface of the component raw materials and forms close contact, generating intermolecular attraction, thereby bonding the component raw materials, such as powders and liquids. The adhesive component can be a combination of natural plant extracts, non-ionized modified viscous polysaccharides, including tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, preventing them from loosening. In addition, it improves the water resistance of the aerosol-generating matrix and is harmless to the human body.

[0091] For example, flavoring ingredients are used to provide characteristic aromas, such as hay, roasted sweet, or solid or liquid substances containing nicotine. Flavoring ingredients can include one or more combinations of tobacco or other plant, aromatic plant extracts, extracts, essential oils, and absolutes. Flavoring ingredients can also include monomeric flavoring substances, such as one or more combinations of megastigmatrienone, neophytadiene, geraniol, and nerol.

[0092] It should be noted that the filter segment 22 has the function of adjusting the suction resistance. Specifically, the filter segment 22 can adjust the suction resistance by controlling parameters such as the number of second airway holes 22a of the filter segment 22, the hydraulic diameter of the second airway holes 22a, and the cross-sectional area of ​​the filter segment 22.

[0093] In order to meet the user's sensory demands for natural and smooth inhalation, clear smoke, and comfort during the puffing process, and to enhance the user's experience, it is necessary to control the draw resistance range of the aerosol-generating article 100. It should be noted that the draw resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the aerosol-generating article 100, the smaller the draw resistance experienced by the user; the greater the flow resistance of the aerosol in the aerosol-generating article 100, the greater the draw resistance experienced by the user.

[0094] Illustratively, the aerosol-generating article 100 has a draw resistance in the range of 500 Pa to 1100 Pa, for example, 500 Pa, 550 Pa, 600 Pa, 650 Pa, 700 Pa, 750 Pa, 800 Pa, 850 Pa, 900 Pa, 950 Pa, 1000 Pa, 1050 Pa, 1100 Pa, etc.

[0095] When the suction resistance range of the aerosol-generating product 100 is greater than 1100 Pa, the flow resistance of the aerosol in the aerosol-generating product 100 is greater, the first airway hole 10a corresponding to the medium segment 10 and the second airway hole 22a corresponding to the filter segment 22 are relatively small, which will significantly increase the difficulty of the molding process. The sizes of the first airway hole 10a and the second airway hole 22a are difficult to control, which will increase the defective rate of the medium segment 10 and the filter segment 22.

[0096] When the draw resistance range of the aerosol generating product 100 is less than 500 Pa, the number of the first airway holes 10a corresponding to the medium segment 10 and the second airway holes 22a corresponding to the filter segment 22 is small, and the medium segment 10 is prone to burnt, and the medium segment 10 is prone to uneven aerosol release during the heating process (for example, the first two puffs release a large amount of aerosol, and the next few puffs release a small amount of aerosol), which affects the user's puffing experience.

[0097] When the suction resistance of the aerosol generating product 100 is within the range of 500Pa-1100Pa, the flow resistance of the medium segment 10 is relatively small (that is, the suction resistance is relatively small), and the flow rate of the aerosol is appropriate. The aerosol inside the medium segment 10 is easy to extract, the aerosol is released more evenly and the utilization rate is higher. The medium segment 10 is also less likely to burn, the user experience is relatively high, and it is also easy to process and manufacture.

[0098] It is understood that in order to ensure that the aerosol within the media segment 10 is easily extracted, the aerosol is released more evenly and at a higher utilization rate, the media segment 10 is less likely to burn, and to facilitate the processing and manufacturing of the media segment 10, the media segment 10 must be within a certain draw resistance range. Thus, the draw resistance of the aerosol-generating article 100 can be adjusted by adjusting the draw resistance of the filter segment 22. For example, the draw resistance of the media segment 10 is less than or equal to the draw resistance of the filter segment 22. In this way, while ensuring that the aerosol within the media segment 10 is easily extracted, the aerosol is released more evenly and at a higher utilization rate, and the media segment 10 is less likely to burn, the user's sensory demands for natural and smooth inhalation, clear smoke, and comfort during the puffing process are met.

[0099] Preferably, the suction resistance of the media segment 10 is smaller than the suction resistance of the filter segment 22 .

[0100] Illustratively, the absorption resistance of the dielectric segment 10 ranges from 10 Pa to 100 Pa, for example, 10 Pa, 15 Pa, 20 Pa, 25 Pa, 30 Pa, 35 Pa, 40 Pa, 45 Pa, 50 Pa, 55 Pa, 60 Pa, 65 Pa, 70 Pa, 75 Pa, 80 Pa, 85 Pa, 90 Pa, 95 Pa, 100 Pa, etc.

[0101] Illustratively, the suction resistance of the filter section 22 is in the range of 50 Pa to 300 Pa, for example, 50 Pa, 55 Pa, 60 Pa, 65 Pa, 70 Pa, 75 Pa, 80 Pa, 85 Pa, 90 Pa, 95 Pa, 100 Pa, 110 Pa, 120 Pa, 130 Pa, 140 Pa, 150 Pa, 160 Pa, 170 Pa, 180 Pa, 190 Pa, 200 Pa, 210 Pa, 220 Pa, 230 Pa, 240 Pa, 250 Pa, 260 Pa, 270 Pa, 280 Pa, 290 Pa, 300 Pa, etc.

[0102] It should be noted that the draw resistance of the filter segment 22 can be adjusted by controlling parameters such as the number of second airway holes 22a in the filter segment 22, the hydraulic diameter of the second airway holes 22a, and the sum of the cross-sectional areas of all second airway holes 22a. The draw resistance of the media segment 10 can be adjusted by controlling parameters such as the number of first airway holes 10a in the media segment 10, the hydraulic diameter of the first airway holes 10a, and the sum of the cross-sectional areas of all first airway holes 10a.

[0103] Therefore, in order to achieve the goal of controlling the suction resistance of the medium segment 10 to be less than or equal to the suction resistance of the filter segment 22, parameters such as the number of second airway holes 22a in the filter segment 22, the hydraulic diameter of the second airway holes 22a, and the sum of the cross-sectional areas of all second airway holes 22a can be controlled, as well as parameters such as the number of first airway holes 10a in the medium segment 10, the hydraulic diameter of the first airway holes 10a, and the sum of the cross-sectional areas of all first airway holes 10a can be controlled.

[0104] For example, in a plane perpendicular to the first direction of the aerosol-generating article 100, the sum of the cross-sectional areas of all the first airway holes 10a is greater than or equal to the sum of the cross-sectional areas of all the second airway holes 22a. In this way, the draw resistance of the media segment 10 can be less than or equal to the draw resistance of the filter segment 22.

[0105] It can be understood that when the number of the first airway holes 10a is the same as the number of the second airway holes 22a, the suction resistance of the medium segment 10 and the filter segment 22 can be controlled by controlling the cross-sectional area of ​​the first airway holes 10a (i.e., the hydraulic diameter of the first airway holes 10a) and controlling the cross-sectional area of ​​the second airway holes 22a (i.e., the hydraulic diameter of the second airway holes 22a).

[0106] For example, referring to FIG2 , in a plane perpendicular to the first direction of the aerosol-generating article 100, the cross-sectional area (hydraulic diameter) of a single first airway hole 10a is greater than or equal to the cross-sectional area (hydraulic diameter) of a single second airway hole 22a. Thus, when the number of first airway holes 10a is less than or equal to the number of second airway holes 22a, the cross-sectional area (hydraulic diameter) of a single first airway hole 10a can be controlled to be greater than or equal to the cross-sectional area (hydraulic diameter) of a single second airway hole 22a, thereby achieving a sum of the cross-sectional areas of all first airway holes 10a greater than or equal to the sum of the cross-sectional areas of all second airway holes 22a. This can further achieve control of the draw resistance of the media segment 10 to be less than or equal to the draw resistance of the filter segment 22. Furthermore, by controlling the cross-sectional area (hydraulic diameter) of a single first airway hole 10a to be greater than or equal to the cross-sectional area (hydraulic diameter) of a single second airway hole 22a, it is more conducive to satisfying user demands for sensory characteristics such as natural and smooth inhalation, smoke permeability, and comfort during inhalation.

[0107] It is understood that, when the cross-sectional area of ​​a single first airway hole 10a (the hydraulic diameter of the first airway hole 10a) is greater than or equal to the cross-sectional area of ​​a single second airway hole 22a (the hydraulic diameter of the second airway hole 22a), the suction resistance of the media segment 10 and the filter segment 22 can be controlled by controlling the number of first airway holes 10a and the number of second airway holes 22a. For example, referring to Figures 2 and 3, the number of single first airway holes 10a is less than or equal to the number of single second airway holes 22a. In this way, when the cross-sectional area of ​​a single first airway hole 10a is greater than or equal to the cross-sectional area of ​​a single second airway hole 22a, by controlling the number of first airway holes 10a to be less than or equal to the number of second airway holes 22a, the sum of the cross-sectional areas of all first airway holes 10a can be made greater than or equal to the sum of the cross-sectional areas of all second airway holes 22a, thereby achieving the goal of controlling the suction resistance of the media segment 10 to be less than or equal to the suction resistance of the filter segment 22. In addition, by controlling the number of the first airway holes 10a to be less than or equal to the number of the second airway holes 22a, it is more conducive to satisfying the user's sensory characteristics such as natural and smooth inhalation, permeability of smoke, and comfort during the inhalation process.

[0108] Illustratively, at least one cavity 100a is provided inside the aerosol-generating article 100. It should be noted that the number of cavities 100a is not limited herein, that is, the number of cavities 100a can be one or more.

[0109] It should be noted that the specific position and formation method of the cavity 100a are not limited here. For example, it can be formed between any two of the medium segment 10, the cooling segment 21 and the filtering segment 22, or it can be formed at the end of the medium segment 10 away from the cooling segment 21, or it can be formed at the end of the filtering segment 22 away from the cooling segment 21.

[0110] By arranging the combined structure of cavities 100a at different positions, the flow path of the aerosol can be increased, the airflow channel can be enlarged, and by utilizing technical principles such as heat exchange and combining the cavity 100a structure as needed, beneficial effects can be achieved in improving aerosol formation, caching and cooling.

[0111] For example, in some embodiments, as shown in FIG5 , the medium segment 10 and the cooling segment 21 are spaced apart to define a cavity 100a. Specifically, the medium segment 10 and the cooling segment 21 are spaced apart and, together with the wrapping layer 30 surrounding the medium segment 10 and the cooling segment 21, form the cavity 100a. It will be appreciated that the formation of the cavity 100a between the medium segment 10 and the cooling segment 21 allows the aerosol generated by heating the medium segment 10 to flow into the cavity 100a. The provision of the cavity 100a serves to buffer the aerosol generated by the medium segment 10, facilitating aerosol extraction and improving the utilization of the medium segment 10. In addition, the provision of the cavity 100a can increase the contact area between the airflow flowing out of the dielectric segment 10 and the aerosol generating article 100, thereby achieving a better cooling effect; at the same time, it avoids direct contact between the cooling segment 21 and the dielectric segment 10, thereby reducing the probability of aerosol deposition on the end faces of the cooling segment 21 and the dielectric segment 10, and reducing the loss of aerosol during transmission.

[0112] For example, in some embodiments, referring to FIG6 , the filter section 22 and the cooling section 21 are spaced apart to define a cavity 100a. That is, the filter section 22 and the cooling section 21 are spaced apart and enclosed by the wrapping layer 30 wrapped around the filter section 22 and the cooling section 21 to form the cavity 100a. It is understood that by forming the cavity 100a between the filter section 22 and the cooling section 21, the aerosol generated by heating the medium section 10 can flow to the filter section 22 and then flow to the cavity 100a for buffering. Thus, during the aerosol transport process, the flow path of the aerosol is increased, thereby achieving a rapid cooling effect. At the same time, the provision of the cavity 100a can also buffer the aerosol generated by the medium section 10.

[0113] It should be noted that in other embodiments, as shown in Figure 7 , a cavity 100a is provided between the media section 10 and the cooling section 21, and between the filtration section 22 and the cooling section 21. The cavity 100a provided in this embodiment provides both aerosol buffering and cooling functions, and facilitates rapid aerosol extraction. Furthermore, while prioritizing the aerosol buffering function, the cavity 100a is provided between the media section 10 and the cooling section 21, and between the filtration section 22 and the cooling section 21. This alternating arrangement of cavities 100a further enhances the aerosol extraction rate and buffering function.

[0114] For example, in some embodiments, as shown in FIG8 , a cavity 100 a is provided at least at one end of the medium segment 10 distal from the cooling section 21. Specifically, the cavity 100 a is provided at least at the distal end of the medium segment 10. This increases the cavity area between the medium segment 10 and the air, facilitating the natural diffusion of aerosols formed by heating the medium segment 10. The aerosols generated by heating the medium segment 10 can carry away components of the medium not produced by the heat in the heating zone, thereby facilitating aerosol generation.

[0115] The distal lip end of the media segment 10 refers to the end of the media segment 10 that is away from the user when the user uses the aerosol-generating article 100.

[0116] For example, in some embodiments, as shown in FIG9 , a cavity 100a is provided at least at one end of the filter segment 22 distal from the cooling segment 21. Specifically, the cavity 100a is provided at least near the lip end of the filter segment 22. This increases the area of ​​the cavity 100a near the lip end of the filter segment 22 and reduces heat conduction efficiency. As a result, after the aerosol flows out of the inlet lip end of the filter segment 22, it can quickly come into contact with the air. This allows the aerosol to rapidly exchange heat and cool down when it encounters the cool outside air, taking advantage of the relatively low thermal conductivity of air. This alleviates the "hot" problem of the flue gas and facilitates both aerosol extraction and cooling functions.

[0117] For example, in some embodiments, referring to Figures 5 to 10 , a channel 21a is provided within the cooling section 21. The channel 21a extends through both ends of the cooling section 21 along a first direction. A corrugated structure 21b is provided between the sidewalls of the channel 21a and the outer sidewalls of the cooling section 21. The corrugated structure 21b extends along the first direction of the cooling section 21. In other words, the channel 21a and / or the corrugated structure 21b both extend along the first direction, and the aerosol generated by the medium section 10 can flow through the channel 21a or the corrugated structure 21b to be cooled.

[0118] The corrugated structure 21 b is, for example, located between the side wall of the channel 21 a and the outer side wall of the cooling section 21 , and has a wave-shaped cross section.

[0119] A corrugated structure 21b is provided between the side wall of the channel 21a and the outer wall of the cooling section 21. The corrugated structure 21b is evenly distributed around the channel 21a, which is beneficial for achieving support and cooling functions, and also has the function of adjusting suction resistance.

[0120] For example, referring to Figure 11 , the cooling section 21 is formed with grooves 21c on its circumferential outer surface. Grooves 21c extend through opposite ends of the cooling section 21 along a first direction. The provision of grooves 21c increases the contact area between the aerosol and the cooling section 21, reduces the aerosol flow rate, and further facilitates lowering the aerosol temperature. The grooves also function as a fragrance carrier.

[0121] It should be noted that the number of grooves 21c is not limited here, that is, one groove 21c can be provided, or multiple grooves 21c can be provided. When the cooling section 21 is provided with multiple grooves 21c, the grooves 21c are provided at intervals on the circumferential outer surface of the cooling section 21.

[0122] Exemplarily, the cooling section 21 is one of a hollow acetate fiber structure, a solid acetate fiber structure or a hollow paper tube.

[0123] Please refer to FIG. 2 and FIG. 3 . When the cooling section 21 is a hollow acetate fiber structure or a solid acetate fiber structure, it is beneficial to achieve the supporting and cooling functions and quickly extract the aerosol.

[0124] Please refer to FIG4 . When the cooling section 21 is a hollow paper tube, it is beneficial to realize the supporting and cooling functions, forming a larger channel 21 a structure with an aerosol buffering function, which is beneficial to increase the total amount of aerosol generated.

[0125] Referring to Figures 2 to 9, the aerosol generating product 100 adopts a three-section structure comprising an extruded filter section 22, a cooling section 21, and an extruded medium section 10. By increasing the contact area between the medium section 10 and the air, the problem of low aerosol extraction efficiency and low aerosol generation is solved.

[0126] For example, the media segment 10, cooling segment 21, and filtration segment 22 are cylindrical and coaxially arranged, with the first direction being the axial direction of the three segments. By configuring the media segment 10, functional segment 20, and filtration segment 30 as cylindrical segments and arranging them sequentially along the axial directions of the media segment 10, cooling segment 21, and filtration segment 22, the aerosol-generating article 100 can be made more compact, thereby improving the user experience.

[0127] The following is a brief introduction to eight specific embodiments with reference to the accompanying drawings.

[0128] First embodiment

[0129] Please refer to Figure 2. In this embodiment, the aerosol generating article 100 includes a medium section 10, a cooling section 21 and a filter section 22. The medium section 10, the cooling section 21 and the filter section 22 are separable structures, that is, the aerosol generating article 100 is a three-section combination structure composed of the medium section 10, the cooling section 21 and the filter section 22 combined in sequence.

[0130] The medium segment 10 and the filter segment 22 are both integral structures.

[0131] The filter section 22 is an integrated structure, which is conducive to targeted filtration of aerosols and improves the on-demand delivery and transfer of effective ingredients in aerosols. At the same time, it solves the problem in the prior art that the filter section 22 filters the aerosol through physical filament pore size, etc., resulting in some effective ingredients being filtered out.

[0132] Referring to Figure 2 , at least one first airway hole 10a is defined within the media segment 10, extending through at least one end of the media segment 10 along a first direction. At least one second airway hole 22a is defined within the filter segment 22, extending through at least one end of the filter segment 22 along the first direction. The provision of the first and second airway holes 10a, 22a, can adjust suction resistance.

[0133] In a plane perpendicular to the first direction of the aerosol-generating article 100, the sum of the cross-sectional areas of all the first airway holes 10a is greater than or equal to the sum of the cross-sectional areas of all the second airway holes 22a, so that the draw resistance of the media segment 10 is less than or equal to the draw resistance of the filter segment 22; the hydraulic diameter of a single first airway hole 10a is greater than the hydraulic diameter of a single second airway hole 22a; and the number of first airway holes 10a is less than or equal to the number of second airway holes 22a. This facilitates adjusting the draw resistance of the aerosol-generating article 100.

[0134] The cooling section 21 is a hollow acetate fiber structure, which is conducive to achieving support and cooling functions and quickly extracting aerosols.

[0135] Second embodiment

[0136] Referring to FIG. 3 , the structure of the aerosol-generating article 100 in this embodiment is substantially the same as that in the first embodiment, with the following key differences: in this embodiment, the hydraulic diameter of a single first airway hole 10a is equal to the hydraulic diameter of a single second airway hole 22a; the number of first airway holes 10a is equal to the number of second airway holes 22a; and the sum of the cross-sectional areas of all first airway holes 10a is greater than or equal to the sum of the cross-sectional areas of all second airway holes 22a. In other words, the media segment 10 and the filter segment 22 can be identical in structure but made of different materials. This facilitates the stability of the aerosol's axial release and allows for the use of a common extrusion die. This means that the filter segment 22 and the media segment 10 can be produced using the same extrusion die, further improving the production efficiency of the aerosol-generating article 100.

[0137] It is understood that the difference between the second embodiment and the first embodiment lies in the number of second airway holes 22a, the hydraulic diameter of the second airway holes 22a, the number of first airway holes 10a, and the hydraulic diameter of the first airway holes 10a. By setting the hydraulic diameter of a single first airway hole 10a to be larger than the hydraulic diameter of a single second airway hole 22a, and the number of first airway holes 10a to be less than or equal to the number of second airway holes 22a, this facilitates adjusting the inhalation resistance and targeted filtration of harmful aerosol components.

[0138] Third embodiment

[0139] Referring to FIG. 4 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, with the main differences including: in this embodiment, the cooling section 21 may be a hollow paper tube, which facilitates both support and cooling functions while having a larger channel 21a structure, thereby being more conducive to caching aerosols and increasing the total amount of aerosols generated.

[0140] It is understandable that the difference between the third embodiment and the first embodiment lies in the differences in parameters such as the number of second airway holes 22a, the hydraulic diameter of the second airway holes 22a, the number of first airway holes 10a, and the hydraulic diameter of the first airway holes 10a. By setting the hydraulic diameter of a single first airway hole 10a to be larger than the hydraulic diameter of a single second airway hole 22a, and the number of first airway holes 10a to be less than or equal to the number of second airway holes 22a, it is more conducive to adjusting the suction resistance and targeted filtration of harmful components in the aerosol. The third embodiment, by configuring the cooling section 21 as a hollow paper tube, not only facilitates the support and cooling functions, but also has a larger channel 21a structure, which is more conducive to caching the aerosol and helps increase the total amount of aerosol generated.

[0141] Fourth embodiment

[0142] Referring to FIG. 5 , the structure of the aerosol-generating article 100 in this embodiment is substantially the same as that of the first embodiment, with the following main differences: in this embodiment, the hydraulic diameter of a single first airway hole 10a is greater than or equal to the hydraulic diameter of a single second airway hole 22a; and the number of first airway holes 10a is less than or equal to the number of second airway holes 22a. This facilitates adjusting the draw resistance of the aerosol-generating article 100.

[0143] In addition, referring to Figure 10 , the cooling section 21 is provided with a channel 21a extending through both ends of the cooling section 21 along a first direction. A corrugated structure 21b is provided between the sidewalls of the channel 21a and the outer sidewalls of the cooling section 21. The corrugated structure 21b extends along the first direction of the cooling section 21. In other words, both the channel 21a and the corrugated structure 21b extend along the first direction, allowing the aerosol generated by the medium section 10 to flow through the channel 21a or the corrugated structure 21b for cooling.

[0144] A corrugated structure 21b is provided between the side wall of the channel 21a and the outer side wall of the cooling section 21. The corrugated structure 21b is evenly distributed around the channel 21a, which is conducive to achieving support and cooling functions. In addition, it also has the function of adjusting the suction resistance.

[0145] In addition, in this embodiment, the medium section 10 and the temperature reduction section 21 are spaced apart to define a cavity 100a.

[0146] That is, the medium segment 10 and the cooling segment 21 are spaced apart and, together with the wrapping layer 30 surrounding the medium segment 10 and the cooling segment 21, form a cavity 100a. It is understood that by forming the cavity 100a between the medium segment 10 and the cooling segment 21, the aerosol generated by heating the medium segment 10 can flow into the cavity 100a. The provision of the cavity 100a can buffer the aerosol generated by the medium segment 10, facilitate aerosol extraction, and improve the utilization rate of the medium segment 10. Furthermore, the provision of the cavity 100a increases the contact area between the airflow flowing out of the medium segment 10 and the aerosol-generating article 100, thereby achieving a better cooling effect. At the same time, it prevents direct contact between the cooling segment 21 and the medium segment 10, thereby reducing the probability of aerosol deposition on the end surfaces of the cooling segment 21 and the medium segment 10, and reducing aerosol loss during transmission.

[0147] Fifth embodiment

[0148] Referring to FIG. 6 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, with the main differences including: in this embodiment, the cavity 100 a is disposed between the filtering section 22 and the cooling section 21 .

[0149] That is, the filter section 22 and the cooling section 21 are spaced apart and, together with the wrapping layer 30 surrounding the filter section 22 and the cooling section 21, form a cavity 100a. It is understood that by forming the cavity 100a between the filter section 22 and the cooling section 21, the aerosol generated by the heated medium section 10 can flow to the filter section 22 and then to the cavity 100a for buffering. This increases the aerosol flow path during aerosol transport, thereby achieving a rapid cooling effect. Furthermore, the provision of the cavity 100a also buffers the aerosol generated by the medium section 10.

[0150] Sixth embodiment

[0151] Please refer to Figure 7. In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, with the main differences including: in this embodiment, a cavity 100a is provided between the medium section 10 and the cooling section 21, and between the filtering section 22 and the cooling section 21.

[0152] The cavity 100a provided in this embodiment provides both aerosol buffering and cooling functions, facilitating rapid aerosol extraction. Prioritizing the aerosol buffering function, cavities 100a are provided between the media section 10 and the cooling section 21, and between the filter section 22 and the cooling section 21. This alternating arrangement of cavities 100a further enhances both the aerosol extraction rate and the buffering function.

[0153] Seventh embodiment

[0154] Referring to FIG. 8 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, with the main differences including: in this embodiment, the cavity 100 a is disposed at an end of the medium section 10 away from the cooling section 21 .

[0155] In this embodiment, a cavity 100a is provided at one end of the medium segment 10 away from the cooling segment 21 to increase the contact area between the medium segment 10 and the air, which is beneficial to the natural diffusion of the aerosol formed by the heating of the medium segment 10. The aerosol generated by the heating of the medium segment 10 can carry out the components of the medium that are not produced by the heat in the heating area, which is beneficial to the generation of aerosol.

[0156] Eighth embodiment

[0157] Referring to FIG. 9 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, with the main differences including: in this embodiment, the cavity 100 a is disposed at the end of the filtering section 22 away from the cooling section 21 .

[0158] In this embodiment, a cavity 100a is provided at one end of the filter section 22 away from the cooling section 21, thereby increasing the area of ​​the cavity 100a near the lip end of the filter section 22 and reducing the heat conduction efficiency. As a result, after the aerosol flows out from the inlet lip end of the filter section 22, it can quickly come into contact with the air. That is, the air has a relatively low thermal conductivity efficiency, and the aerosol can quickly exchange heat and cool down when it encounters the cold air outside, thereby improving the "hot" problem of the smoke and facilitating the aerosol extraction and cooling functions.

[0159] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0160] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An aerosol generating product, comprising a medium segment and a functional segment, wherein the functional segment is provided at one end of the medium segment along a first direction, wherein the functional segment comprises a cooling segment and a filtering segment, wherein the cooling segment is located between the filtering segment and the medium segment, and the medium segment and the filtering segment are both integrated structures; At least one first airway hole is provided inside the media segment, and the first airway hole passes through at least one end of the media segment along the first direction; at least one second airway hole is provided inside the filter segment, and the second airway hole passes through at least one end of the filter segment along the first direction.

2. The aerosol generating product according to claim 1, wherein the medium segment, the cooling segment and the filtering segment are separable structures.

3. The aerosol generating article according to claim 2, wherein, on a plane perpendicular to the first direction of the aerosol generating article, the sum of the cross-sectional areas of all the first airway holes is greater than or equal to the sum of the cross-sectional areas of all the second airway holes.

4. An aerosol-generating article according to claim 3, the number of the first airway holes being less than or equal to the number of the second airway holes.

5. According to the aerosol generating article according to claim 3, on a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​a single first airway hole is greater than or equal to the cross-sectional area of ​​a single second airway hole; or, the hydraulic diameter of a single first airway hole is greater than or equal to the hydraulic diameter of a single second airway hole.

6. The aerosol-generating article of claim 1, wherein at least one cavity is provided in the interior of the aerosol-generating article.

7. The aerosol generating product according to claim 6, wherein the medium segment and the cooling segment are spaced apart to define the cavity; and / or the filtering segment and the cooling segment are spaced apart to define the cavity.

8. The aerosol generating product according to claim 6, wherein the cavity is provided at least at one end of the medium segment away from the cooling segment; and / or the cavity is provided at least at one end of the filter segment away from the cooling segment.

9. The aerosol generating product according to claim 1, wherein a channel is provided inside the cooling section, the channel runs through both ends of the cooling section along the first direction, a corrugated structure is provided between the side wall of the channel and the outer side wall of the cooling section, and the corrugated structure extends along the first direction of the cooling section; and / or, A groove is formed on the circumferential outer surface of the temperature reduction section, and the groove runs through two opposite ends of the temperature reduction section along the first direction.

10. The aerosol generating product according to claim 1, wherein the cooling section is one of a hollow acetate fiber structure, a solid acetate fiber structure or a hollow paper tube.

11. An aerosol-generating article according to claim 1, the draw resistance of the media segment being less than or equal to the draw resistance of the filter segment.

12. The aerosol generating article according to claim 11, wherein the medium segment has a suction resistance in the range of 10Pa-100Pa; and / or the filter segment has a suction resistance in the range of 50Pa-300Pa.

13. The aerosol-generating article according to claim 1, wherein the aerosol-generating article has a draw resistance in the range of 500 Pa to 1100 Pa.

14. The aerosol generating product according to claim 1, wherein the medium segment, the cooling segment and the filtering segment are cylindrical and are coaxially arranged, and the first direction is the axial direction of the three.

15. An aerosol generating device for use with the aerosol generating article according to any one of claims 1 to 14, the aerosol generating device comprising a heating component for heating the medium segment to generate an aerosol.

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