Aerosol generating product and aerosol generating device

Abstract

According to the aerosol generating product and the aerosol generating device, the aerosol generating product comprises the medium section and the functional section, the functional section is arranged at the end, in the first direction, of the medium section, the functional section comprises the cooling section and the filtering section, the cooling section is located between the filtering section and the medium section, and the medium section and the filtering section are both of an integrated structure; at least one first air passage hole is formed in the medium section; and at least one second air passage hole is formed in the filtering section. According to the aerosol generating product provided by the embodiment of the invention, the medium section and the filtering section are both of an integrated structure, the at least one first air passage hole is formed in the medium section, and the at least one second air passage hole is formed in the filtering section, so that the porosity of the medium section and the filtering section is favorably controlled, and the aerosol generating effect is improved by controlling the porosity of the medium section and the filtering section. And the draw resistance rate of the aerosol generation product can be adjusted. In addition, due to the fact that the porosity of the integrated structure is stable, the draw resistance consistency of the aerosol generating product can be improved.

Description

Technical Field

[0001] 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

[0002] Smoking articles include smoking articles that form aerosols by ignition and smoking articles that form aerosols by heating without burning. In a typical smoking article that heats without burning, 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 just heated to a degree 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.

[0003] In the prior art, 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 each 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. Summary of the invention

[0004] In view of this, the present application hopes to provide an aerosol generating product and an aerosol generating device capable of improving the consistency of inhalation resistance.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides an aerosol generating product, the aerosol generating product comprising 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 comprises a cooling segment and a filtering segment, 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;

[0006] 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.

[0007] In one embodiment, the medium section, the cooling section and the filtering section are separable structures.

[0008] 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.

[0009] In one embodiment, the number of the first airway holes is less than or equal to the number of the second airway holes.

[0010] 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.

[0011] 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.

[0012] In one embodiment, the interior of the aerosol-generating article is provided with at least one cavity.

[0013] In one embodiment, the medium section and the temperature reduction section are spaced apart to define the cavity.

[0014] In one embodiment, the filtering section and the cooling section are spaced apart to define the cavity.

[0015] In one embodiment, the cavity is provided at least at one end of the medium section away from the temperature reduction section.

[0016] In one embodiment, the cavity is provided at least at one end of the filtering section away from the cooling section.

[0017] In one embodiment, a channel is provided inside the cooling section, the channel runs through both ends of the cooling section along a 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.

[0018] 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.

[0019] In one embodiment, the cooling section is one of a hollow acetate fiber structure, a solid acetate fiber structure or a hollow paper tube.

[0020] In one embodiment, the suction resistance of the medium segment is less than or equal to the suction resistance of the filter segment.

[0021] In one embodiment, the absorption resistance of the medium segment ranges from 10Pa to 100Pa.

[0022] In one embodiment, the suction resistance of the filtration section ranges from 50Pa to 300Pa.

[0023] In one embodiment, the aerosol-generating article has a draw resistance in the range of 500Pa-1100Pa.

[0024] In one embodiment, the medium section, the cooling section and the filtering section are cylindrical and are coaxially arranged, and the first direction is the axial direction of the three.

[0025] The embodiment of the present application further provides an aerosol generating device for use with the aerosol generating product described above, wherein the aerosol generating device includes a heating component, and the heating component is used to heat the medium segment to generate an aerosol.

[0026] 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 generates 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.

[0027] The medium segment and filter segment of the aerosol generating product provided in the embodiment of the present application are both integrated structures. By providing at least one first airway hole inside the medium segment and at least one second airway hole inside the filter segment, it is beneficial to control the porosity of the medium segment and the filter segment. By controlling the porosity of the medium segment and the filter segment, it is beneficial to adjust the suction resistance of the aerosol generating product, so as to meet the sensory characteristics of the user's natural and smooth suction, smoke permeability, comfort, etc. during the suction process, and improve the user's use experience. In addition, since the medium segment and the filter segment are both integrated structures, the porosity of the integrated structure is relatively stable, which can improve the consistency of the suction resistance of the aerosol generating product.

[0028] In addition, the first airway hole can increase the surface area of ​​the medium segment, facilitate heat transfer, and improve heating efficiency. The integrated filter segment is provided with a second airway hole, which is conducive to targeted filtration of aerosols and improves the on-demand delivery and transfer of aerosol active ingredients. At the same time, it solves the problem that the filter segment in the prior art filters aerosols through physical filament apertures, etc., resulting in the filtration of some active ingredients. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0030] Figure 2 for Figure 1 A cross-sectional view of an aerosol-generating article shown, wherein the dashed arrows indicate the direction of airflow in the aerosol-generating article;

[0031] Figure 3 is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0032] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0033] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0034] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0035] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0036] Figure 8 is a schematic cross-sectional view of an aerosol generating article in a seventh embodiment of the present application;

[0037] Fig. 9 is a schematic cross-sectional view of an aerosol generating article in an eighth embodiment of the present application;

[0038] Fig.10 for Figure 6 The structural schematic diagram of the cooling section shown;

[0039] Fig.11 Schematic cross-sectional view of a groove according to an embodiment of the present application.

[0040] Description of Reference Numerals

[0041] 10. Medium section; 10a. First airway hole; 20. Functional section; 21. Cooling section; 21a. Channel; 21b. Corrugated structure; 21c. Groove; 22. Filter section; 22a. Second airway hole; 30. Wrapping layer; 100. Aerosol generating product; 100a. Cavity. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present 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 the present application and should not be regarded as an improper limitation on the present application.

[0043] In the description of this application, the "first direction" orientation or position relationship is based on the attached Figure 1 and Figure 2 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present 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, and therefore should not be understood as a limitation on the present application.

[0044] The present application provides an aerosol generating product. Figures 1 to 9 , including 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 product 100 of the embodiment of the present application can be used for inhalation by ignition or by heating without burning. In the embodiment of the present application, the aerosol generating product 100 is used for inhalation by heating without burning 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 medium segment 10 is substantially cylindrical, which may be a cylindrical shape (i.e., a circular cross-sectional shape), a prism shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder shape (i.e., an elliptical cross-sectional shape), 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 filtering segment 22 are separable structures, and the three are not connected together by mechanical, physical structures or adhesives, but two of them can be in contact. The medium segment 10, the cooling segment 21 and the filtering segment 22 are a combined structure, so that different medium segments 10 and different filtering segments 22 can be reasonably matched to meet customer needs for different suction resistances.

[0052] The medium segment 10 and the filter segment 22 are both integral structures. In one embodiment, the medium segment 10 is an integral structure formed by extrusion, and the filter segment 22 is also an integral structure formed by extrusion. That is, the medium segment 10 and the filter segment 22 are manufactured using the same processing technology. Compared with the prior art in which the medium segment and the filter segment are manufactured using different processing technologies, the medium segment and the filter segment are manufactured using the same processing technology, thereby improving the production efficiency of the aerosol generating product.

[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] For example, see Figures 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 penetrates 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 may 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 passage hole 10a penetrates at least one end of the medium segment 10 along the first direction, which means that the first air passage hole 10a may penetrate the opposite ends of the medium segment 10 along the first direction (see Figures 2 to 9 ,), the airflow can flow from one end of the medium segment 10 along the first direction through the first airway hole 10a to the other end of the medium segment 10 along the first direction.

[0058] Of course, one end of the first airway hole 10a may penetrate the end surface of the medium segment 10 along the first direction, and the other end of the first airway hole 10a may be a blind end. Among them, each first airway hole 10a may penetrate the same end of the medium segment 10 along the first direction. In other embodiments, part of the first airway holes 10a may penetrate one end of the medium segment 10 along the first direction, and another part of the first airway holes 10a may penetrate the other end of the medium 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 suction resistance of the user.

[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 suction resistance of the user's suction 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 combination, and micropores are formed between the particles of the particle combination, 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 hole 10a and the micro-airway can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium of the medium segment 10 releases aerosols when heated, and is collected to the first airway hole 10a through the gaps between the wall materials or the micro-airway. The aerosols released by the atomized medium exposed to the first airway hole 10a (i.e., the atomized medium located on the inner wall surface of the airway hole) can be directly released to the first airway hole 10a. The aerosols between adjacent first airway holes 10a can also circulate with each other through the micro-airway and be transported to the suction end under the action of the suction negative pressure.

[0063] For example, see Figures 2 to 9 At least one second airway hole 22a is provided inside the filter section 22, and the second airway hole 22a penetrates 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 absorb 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 may be one or more.

[0066] The second air passage hole 22a penetrates at least one end of the filter segment 22 along the first direction, which means that the second air passage hole 22a may penetrate the two opposite ends of the filter segment 22 along the first direction (see Figures 2 to 9 ), the airflow can flow from one end of the filter segment 22 along the first direction to the other end of the filter segment 22 along the first direction through the second airway hole 22a.

[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, and the other end of the second airway hole 22a may be a blind end. Among them, each second airway hole 22a may penetrate the same end of the filter segment 22 along the first direction. In other embodiments, part of the second airway holes 22a may penetrate one end of the filter segment 22 along the first direction, and another part 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 suction resistance of the user.

[0069] It should be noted that the first airway hole 10a and the second airway hole 22a are holes in the macroscopic sense, and the micropores are holes in the microscopic sense. The cross-sectional area of ​​the first airway hole 10a and the second airway hole 22a is much larger than that 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 penetrates 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 inhalation resistance of the cigarette and targeted filtering of harmful components in the aerosol (harmful components such as carbon monoxide, tar, etc.).

[0071] Exemplary, the medium section 10 is a particle combination, also referred to as a powder combination, a kind of reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agent and tobacco. The medium section 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, and the material is heated and plasticized by the action between the extruder barrel and the screw, and is pushed forward by the screw, and is continuously made into a processing method of various cross-section products or semi-finished products by the mold of the extruder discharge port. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium section 10 is heated and sucked or stops being heated, it is an integrated medium, and it is not easy to disintegrate and fall, and the problem that the thin sheet, filament or scattered particle medium section 10 in the prior art appears, such as the problem of thin sheet loosening, filamentous component, particle component falling off, being difficult to clean, and the problem of uneven components.

[0072] The filter segment 22 can be made of filter materials, such as acetate materials or polymers such as PET, and a porous material made of easily degradable plastic 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] For example, see Figures 1 to 9 The aerosol generating article 100 includes a wrapping layer 30 , which wraps around the circumferential outside of the functional segment 20 and the medium segment 10 .

[0074] The wrapping layer 30 can provide some protection for the medium segment 10, reducing the surface area of ​​the medium segment 10 directly exposed to the outside, thereby reducing the probability of the medium segment 10 becoming damp and deteriorating due to contact with the air, and at the same time, reducing 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 medium segment 10 and the wrapping layer 30 can be an integrated structure. That is, the medium segment 10 and the wrapping layer 30 are different parts of an integral structure. In this way, on the one hand, the relative position of the medium segment 10 and the wrapping layer 30 is fixed, which can reduce the probability of the medium segment 10 and the wrapping layer 30 being separated due to temperature changes, vibrations and other factors during the use of the aerosol generating product 100; on the other hand, the medium segment 10 and the wrapping layer 30 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0076] For example, the integral structure of the media portion and the wrap 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 split 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 containing chamber. The power output part of the power supply assembly is arranged in the containing chamber or around the side wall of the containing chamber. When the aerosol generating product 100 is inserted into the containing 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 embodiment 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 the longest. Specifically, the arrangement direction of the functional segment 20 and the dielectric segment 10 is consistent with the first direction; the direction in which the aerosol generating product 100 is inserted into the heating chamber and the direction in which the aerosol generating product 100 is taken out of 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 appearance of the medium segment 10 is cylindrical, the first direction is the axial direction of the medium segment 10. It should be noted that even when the axial length of the medium segment 10 is less than its diameter, the first direction of the medium segment 10 is still the axial direction. For another example, when the appearance of the medium segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the arrangement direction of the functional segment 20 and the medium segment 10, or the direction of the heating chamber to take out and put the aerosol generating product 100. The first direction of the medium segment 10 can be any direction of the length, width, and 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 a 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 generates 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 medium segment 10 and the filter segment 22 of the aerosol generating product 100 provided in the embodiment of the present application are both one-piece structures formed by extrusion. By providing at least one first airway hole 10a inside the medium segment 10 and at least one second airway hole 22a inside the filter segment 22, it is helpful to control the porosity of the medium segment 10 and the filter segment 22. By controlling the porosity of the medium segment 10 and the filter segment 22, it is helpful to adjust the suction resistance of the aerosol generating product 100, so as to meet the sensory characteristics of the user's natural and smooth suction, smoke permeability, comfort, etc. during the suction process, and improve the user's use experience. In addition, since the medium segment 10 and the filter segment 22 are both one-piece structures, the porosity of the one-piece structure is relatively stable, so that the suction resistance consistency of the aerosol generating product 100 can be improved.

[0084] In addition, the first airway hole 10a can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The integrated filter segment 22 is provided with the second airway hole 22a, which is conducive to targeted filtration of aerosols and improves the on-demand delivery and transfer of aerosol active ingredients. At the same time, it solves the problem that the filter segment 22 in the prior art filters the aerosol through physical filament apertures, etc., resulting in the filtration of some 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 plant component is used to generate aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can increase the release of aroma during the inhalation process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the aerosol generation matrix porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component etc. constitute a stable mixture to avoid a loose structure.

[0087] Exemplarily, the plant component can be one or more combinations of powders formed after crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of flavor. Endogenous substances in plant components can produce physiological satisfaction for users. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0088] Exemplarily, the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the aerosol generation matrix, thereby increasing the aerosol release rate. The lubricant includes one or more combinations 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 between the plant component powders, make the overall density of the plant component powder distribution more uniform, and can also reduce the pressure required for the extrusion molding process, and reduce the wear of the die 132. The emulsifier includes one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. The emulsifier can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve 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, glyceryl tributyrate); 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, glyceryl tributyrate, lauryl acetate) in one or more combinations.

[0090] Exemplarily, the adhesive component is in close contact with the interface of the component raw materials by wetting, generating intermolecular attraction, thereby playing a role in bonding the component raw materials, such as powders, liquids, etc. The adhesive component can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the aerosol generating matrix and is harmless to the human body.

[0091] Exemplarily, the flavor component is used to provide a characteristic aroma, such as hay aroma, roasted sweet aroma, solid or liquid substances of nicotine. The flavor component may include one or more combinations of tobacco or other plants, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor component may include monomeric flavor substances, such as one or more combinations of megastigmatriene, neophytadiene, geraniol, nerol, etc.

[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 satisfy the user's demands for sensory characteristics such as natural and smooth inhalation, smoke permeability, and comfort during the inhalation process and improve the user's use experience, it is necessary to control the inhalation resistance range of the aerosol generating product 100. It should be noted that the inhalation resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the aerosol generating product 100, the smaller the inhalation resistance experienced by the user; the greater the flow resistance of the aerosol in the aerosol generating product 100, the greater the inhalation resistance experienced by the user.

[0094] Exemplarily, the aerosol-generating article 100 has a draw resistance in the range of 500 Pa-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 smaller, 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 not easy to control, which will increase the defective rate of the medium segment 10 and the filter segment 22.

[0096] When the suction resistance range of the aerosol generating product 100 is less than 500Pa, 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, 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 last few puffs release a small amount of aerosol), which affects the user's smoking 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 release is more uniform and the utilization rate is higher. The medium segment 10 is not prone to burning, the user experience is relatively high, and it is also easy to process and manufacture.

[0098] It is understandable that in order to ensure that the aerosol inside the medium segment 10 is easy to extract, the aerosol release is more uniform and the utilization rate is high, the medium segment 10 is not easy to be burnt, and it is also convenient for the processing and manufacturing of the medium segment 10, the medium segment 10 needs to be determined within a certain suction resistance range. Therefore, the suction resistance of the aerosol generating product 100 can be adjusted by matching different suction resistances of the filter segment 22. For example, the suction resistance of the medium segment 10 is less than or equal to the suction resistance of the filter segment 22. In this way, while ensuring that the aerosol inside the medium segment 10 is easy to extract, the aerosol release is more uniform and the utilization rate is higher, and the medium segment 10 is not easy to be burnt, the sensory characteristics of the user's natural and smooth suction, smoke permeability, comfort, etc. during the suction process are met.

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

[0100] Exemplarily, the absorption resistance of the medium segment 10 is in the range of 10Pa-100Pa, for example, 10Pa, 15Pa, 20Pa, 25Pa, 30Pa, 35Pa, 40Pa, 45Pa, 50Pa, 55Pa, 60Pa, 65Pa, 70Pa, 75Pa, 80Pa, 85Pa, 90Pa, 95Pa, 100Pa, etc.

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

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

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

[0104] For example, on 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 medium 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, see Figure 2 , on 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. In this way, 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, so that 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, and the suction resistance of the medium segment 10 can be controlled to be less than or equal to the suction resistance of the filter segment 22. In addition, 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 the user's sensory characteristics such as natural and smooth suction, smoke permeability, and comfort during the suction process.

[0107] It is understandable that, when the cross-sectional area of ​​a single first airway hole 10a (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 (hydraulic diameter of the second airway hole 22a), the suction resistance of the medium segment 10 and the filter segment 22 can be controlled by controlling the number of the first airway holes 10a and the number of the second airway holes 22a. For example, see Figure 2 and Figure 3 , the number of a single first airway hole 10a is less than or equal to the number of a single second airway hole 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 greater than or equal to the sum of the cross-sectional areas of all second airway holes 22a, thereby achieving the control of the suction resistance of the medium segment 10 to be less than or equal to the suction resistance of the filter segment 22. In addition, by controlling 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 satisfying the user's demands for sensory characteristics such as natural and smooth suction, smoke permeability, and comfort during the suction process.

[0108] Exemplarily, 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 here, 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 herein. 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 one end of the medium segment 10 away from the cooling segment 21, or it can be formed at one end of the filtering segment 22 away from the cooling segment 21.

[0110] By arranging the combined structure of the 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 implementations, see Figure 5 , the medium segment 10 and the cooling segment 21 are spaced apart to define a cavity 100a. That is, the medium segment 10 and the cooling segment 21 are spaced apart, and the cavity 100a is formed by the wrapping layer 30 wrapped around the medium segment 10 and the cooling segment 21. It can be 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 setting of the cavity 100a can cache the aerosol generated by the medium segment 10, which can be beneficial to the extraction of the aerosol and improve the utilization rate of the medium segment 10. In addition, the setting of the cavity 100a can increase the contact area between the airflow flowing out of the medium segment 10 and the aerosol generating product 100, thereby achieving a better cooling effect; at the same time, it avoids direct contact between the cooling segment 21 and the medium segment 10, so as to reduce the probability of aerosol deposition on the end faces of the cooling segment 21 and the medium segment 10, thereby reducing the loss of aerosol during transmission.

[0112] For example, in some implementations, see Figure 6 , the filter section 22 and the cooling section 21 are spaced apart to define a cavity 100a. That is to say, the filter section 22 and the cooling section 21 are spaced apart, and the cavity 100a is formed by the wrapping layer 30 wrapped around the filter section 22 and the cooling section 21. It can be 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. Therefore, in the process of transporting the aerosol, the flow path of the aerosol is increased, thereby having a rapid cooling effect. At the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium section 10.

[0113] It should be noted that in some other embodiments, please refer to Figure 7A cavity 100a is provided between the medium section 10 and the cooling section 21, and between the filter section 22 and the cooling section 21. The cavity 100a provided in this embodiment has the functions of aerosol buffering and cooling, and is conducive to the rapid extraction of aerosol. And under the premise of giving priority to the aerosol buffering function, a cavity 100a is provided between the medium section 10 and the cooling section 21, and between the filter section 22 and the cooling section 21, that is, through the alternating combination of the cavity 100a structure, the aerosol extraction rate and buffering function are further improved.

[0114] For example, in some implementations, see Figure 8 , the medium segment 10 is provided with a cavity 100a at least at one end away from the cooling segment 21. That is, at least the cavity 100a is provided at the far lip end of the medium segment 10, which increases the cavity area between the medium segment 10 and the air, and is conducive 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 conducive to the generation of aerosol.

[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 implementations, see Fig. 9 , the filter section 22 is provided with a cavity 100a at least at one end away from the cooling section 21. That is, at least the cavity 100a is provided at the near-lip end of the filter section 22, and the area of ​​the cavity 100a at the near-lip end of the filter section 22 is increased to reduce 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 contact with the air, that is, the heat conduction efficiency of the air is relatively low, and the aerosol meets the cold air outside to achieve rapid heat exchange and cooling, thereby improving the "hot" problem of the smoke and facilitating the aerosol extraction and cooling function.

[0117] For example, in some implementations, see Figures 5 to 10 , a channel 21a is provided inside the cooling section 21, the channel 21a runs through both ends of the cooling section 21 along the first direction, a corrugated structure 21b is provided between the side wall of the channel 21a and the outer side wall of the cooling section 21, and 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 for cooling.

[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 side wall of the cooling section 21. The corrugated structure 21b is evenly distributed around the channel 21a, which is beneficial to achieving the supporting and cooling functions. In addition, it also has the function of adjusting the suction resistance.

[0120] For example, see Fig.11 The circumferential outer surface of the cooling section 21 is formed with a groove 21c, which runs through the two opposite ends of the cooling section 21 along the first direction. The arrangement of the groove 21c can increase the contact area between the aerosol and the cooling section 21, reduce the flow rate of the aerosol, and is more conducive to reducing the temperature of the aerosol. It also has the function of carrying fragrance in the groove.

[0121] It should be noted that the number of the grooves 21c is not limited, that is, one groove 21c or multiple grooves 21c may be provided. When the cooling section 21 is provided with multiple grooves 21c, the grooves 21c are arranged 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] See also Figure 2 and Figure 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] See also Figure 4 When the cooling section 21 is a hollow paper tube, it is beneficial to realize the supporting and cooling functions, forming a larger channel 21a structure, which has an aerosol buffering function and is beneficial to increasing the total amount of aerosol generated.

[0125] See also Figures 2 to 9 The aerosol generating product 100 adopts a three-section structure of a filter section 22 formed by extrusion, a cooling section 21, and a medium section 10 formed by extrusion. 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] Exemplarily, the medium segment 10, the cooling segment 21 and the filtering segment 22 are cylindrical and coaxially arranged, and the first direction is the axial direction of the three. By configuring the medium segment 10, the functional segment 20 and the filtering segment 30 to be cylindrical and arranging them in sequence along the axial direction of the medium segment 10, the cooling segment 21 and the filtering segment 22, the structure of the aerosol generating article 100 can be made more compact, thereby improving the user experience.

[0127] Eight specific embodiments are briefly introduced below with reference to the accompanying drawings.

[0128] First embodiment

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

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

[0131] The filter segment 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 segment 22 filters the aerosols through physical filament pore size, etc., resulting in a part of the effective ingredients being filtered out.

[0132] See also Figure 2 At least one first airway hole 10a is provided inside the medium segment 10, and the first airway hole 10a penetrates at least one end of the medium segment 10 along the first direction. At least one second airway hole 22a is provided inside the filter segment 22, and the second airway hole 22a penetrates at least one end of the filter segment 22 along the first direction. The provision of the first airway hole 10a and the second airway hole 22a can play a role in adjusting the suction resistance.

[0133] On 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 suction resistance of the medium segment 10 is less than or equal to the suction 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; the number of the first airway holes 10a is less than or equal to the number of the second airway holes 22a. This is conducive to adjusting the suction 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] See also Figure 3In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: 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; 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 medium segment 10 and the filter segment 22 can be completely identical in structure, but different in material, which is beneficial to the stability of the axial release of the aerosol and the use of a common extrusion processing mold, that is, the filter segment 22 and the medium segment 10 can be obtained using the same extrusion mold, further improving the production efficiency of the aerosol generating product 100.

[0137] It can be understood that the difference between the second embodiment and the first embodiment lies in the difference 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 greater 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 size of the suction resistance and targeted filtering of harmful components of the aerosol.

[0138] Third embodiment

[0139] See also Figure 4 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the second embodiment, and the main differences include: in this embodiment, the cooling section 21 can be a hollow paper tube, which is conducive to achieving the support and cooling functions while having a larger channel 21a structure, so as to be more conducive to caching the aerosol and to increasing the total amount of aerosol generated.

[0140] It can be understood that the difference between the third embodiment and the first embodiment lies in the difference 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 greater 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 size of the suction resistance and targeted filtration of harmful components of the aerosol. The third embodiment, by setting the cooling section 21 as a hollow paper tube, has a larger channel 21a structure while being conducive to achieving the support and cooling functions, so that it is more conducive to caching the aerosol and increasing the total amount of aerosol generated.

[0141] Fourth embodiment

[0142] See also Figure 5In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: 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; the number of first airway holes 10a is less than or equal to the number of second airway holes 22a. This is conducive to adjusting the inhalation resistance of the aerosol generating article 100.

[0143] Also, see Fig.10 , a channel 21a is provided inside the cooling section 21, the channel 21a runs through both ends of the cooling section 21 along the first direction, a corrugated structure 21b is provided between the side wall of the channel 21a and the outer side wall of the cooling section 21, and the corrugated structure 21b extends along the first direction of the cooling section 21. In other words, the channel 21a and 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 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 beneficial to achieving the supporting 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 to say, the medium segment 10 and the cooling segment 21 are arranged at intervals, and the cavity 100a is formed by the wrapping layer 30 wrapped around the medium segment 10 and the cooling segment 21. It can be 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 setting of the cavity 100a can cache the aerosol generated by the medium segment 10, which can be beneficial to the extraction of the aerosol and improve the utilization rate of the medium segment 10. In addition, the setting of the cavity 100a can increase the contact area between the airflow flowing out of the medium segment 10 and the aerosol generating product 100, thereby achieving a better cooling effect; at the same time, it avoids direct contact between the cooling segment 21 and the medium segment 10, so as to reduce the probability of aerosol deposition on the end faces of the cooling segment 21 and the medium segment 10, and reduce the loss of aerosol during transmission.

[0147] Fifth embodiment

[0148] See also Figure 6 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, and the main differences include: in this embodiment, the cavity 100a is arranged 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 from each other, and the cavity 100a is formed by the wrapping layer 30 wrapped around the filter section 22 and the cooling section 21. It can be 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, in the process of transporting the aerosol, the flow path of the aerosol is increased, thereby having a rapid cooling effect. At the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium section 10.

[0150] Sixth embodiment

[0151] See also Figure 7 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the fourth embodiment, and the main differences include: 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 has the functions of aerosol buffering and cooling, and is conducive to the rapid extraction of aerosol. Under the premise of giving priority to the aerosol buffering function, the cavity 100a is provided between the medium section 10 and the cooling section 21, and between the filter section 22 and the cooling section 21, that is, the aerosol extraction rate and buffering function are further improved through the alternating combination of the cavity 100a structure.

[0153] Seventh embodiment

[0154] See also Figure 8 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, and the main differences include: in this embodiment, the cavity 100a is arranged 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 zone, which is beneficial to the generation of aerosol.

[0156] Eighth embodiment

[0157] See also Fig. 9 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fourth embodiment, and the main differences include: in this embodiment, the cavity 100a is arranged at one 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 meets 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 the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means 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 the present application, the schematic representation of the above terms does 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 the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0160] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, characterized in that The aerosol generating article comprises 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 of an integrated structure; 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 article according to claim 1, wherein The medium section, the cooling section and the filtering section are separable structures.

3. The aerosol-generating article according to claim 2, wherein: 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.

4. The aerosol-generating article according to claim 3, wherein: The number of the first airway holes is less than or equal to the number of the second airway holes.

5. The aerosol-generating article according to claim 3, wherein: 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; Alternatively, 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: The aerosol-generating article has at least one cavity defined therein.

7. An aerosol generating article according to claim 6, characterized in that The medium section and the cooling section are spaced apart to define the cavity; and / or the filtering section and the cooling section are spaced apart to define the cavity.

8. The aerosol-generating article of claim 6, wherein: The cavity is disposed at least at one end of the medium section away from the cooling section; and / or the cavity is disposed at least at one end of the filter section away from the cooling section.

9. The aerosol-generating article of claim 1, wherein: A channel is provided inside the cooling section, the channel runs through two 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 article of 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. The aerosol-generating article of claim 1 , wherein: The suction resistance of the medium segment is less than or equal to the suction resistance of the filter segment.

12. An aerosol-generating article according to claim 11, characterized in that The absorption resistance range of the medium section is 10Pa-100Pa; and / or the absorption resistance range of the filter section is 50Pa-300Pa.

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

14. The aerosol-generating article of claim 1, wherein: The medium section, the cooling section and the filtering section 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, characterized in that: The aerosol generating device comprises a heating assembly for heating the media segment to generate an aerosol.

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