Aerosol generation product and aerosol generation system

Abstract

An aerosol generation product and an aerosol generation system provided by the embodiments of the present application. The aerosol generation product comprises a medium section, a first functional section and a second functional section which are successively arranged in a first direction, one of the first functional section and the second functional section being a cooling section, the medium section being of an integrated structure, the medium section being internally provided with at least one aerosol passage hole, and the aerosol passage hole passing through at least one end of the medium section in the first direction. The medium section of the aerosol generation product provided by the embodiments of the present application generates aerosol when being heated, and the aerosol gathers in the aerosol passage hole and is conveyed to a vaping end under the action of vaping negative pressure. The aerosol passage hole can reduce the vaping resistance for users and achieves a relatively large amount of vapor, thus improving the stability of aerosol release and vaping. Moreover, the medium section is of an integrated structure so as to improve the density uniformity of the medium section, thereby further improving the stability of aerosol release and vaping.

Description

Aerosol generating product and aerosol generating system

[0001] This application is based on the Chinese patent application with application number 202310927503.2 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 introduced into this application as a 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 system. 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. 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.

[0004] In the prior art, when smoking a smoking product, the suction resistance is large, the aerosol release and the suction are unstable, which reduces the user's experience.

[0005] Summary of the Invention

[0006] In view of this, the present application hopes to provide an aerosol-generating product and an aerosol-generating system that can improve the stability of aerosol release and inhalation.

[0007] To achieve the above-mentioned object, an embodiment of the present application provides an aerosol generating article, comprising a medium segment, a first functional segment, and a second functional segment arranged in sequence along a first direction;

[0008] One of the first functional section and the second functional section is a temperature reduction section;

[0009] The medium segment is an integrated structure, and has at least one air passage hole inside the medium segment, and the air passage hole passes through at least one end of the medium segment along the first direction.

[0010] In one embodiment, the medium segment, the first functional segment, and the second functional segment are separable structures, the first functional segment is the cooling segment, and the second functional segment is the filtering segment.

[0011] In one embodiment, the first functional section is a filtration section, and the second functional section is the cooling section.

[0012] In one embodiment, the cooling section is a hollow tubular structure.

[0013] In one embodiment, the filter segment is a solid acetate fiber structure.

[0014] In one embodiment, one of the first functional segment and the second functional segment is a solid structure, and the other is a hollow structure.

[0015] In one embodiment, the aerosol-generating article comprises a wrapping layer, which wraps around the circumferential surfaces of the media segment, the first functional segment and the second functional segment.

[0016] In one embodiment, the medium segment and the first functional segment are spaced apart and define a first cavity together with the wrapping layer.

[0017] In one embodiment, the first functional section and the second functional section are spaced apart and define a second cavity together with the wrapping layer.

[0018] In one embodiment, the wrapping layer protrudes from the end surface of the dielectric segment on the side facing away from the first functional segment, and defines a third cavity together with the end surface of the dielectric segment.

[0019] In one embodiment, the wrapping layer protrudes from the end surface of the second functional segment on the side facing away from the first functional segment, and defines a fourth cavity together with the end surface of the medium segment.

[0020] In one embodiment, the aerosol-generating article comprises a coating layer coated on a circumferential surface of the media segment, wherein the coating layer is sandwiched between the wrapping layer and the media segment.

[0021] In one embodiment, two ends of the first functional segment along the first direction are in contact with the dielectric segment and the second functional segment respectively.

[0022] In one embodiment, at least one end surface of the dielectric segment, the first functional segment, or the second functional segment along the first direction is a first curved surface with a non-zero curvature.

[0023] In one embodiment, the end surface adjacent to the first curved surface in the dielectric segment, the first functional segment, or the second functional segment is a second curved surface adapted to the first curved surface, or is the first curved surface.

[0024] In one embodiment, the medium segment, the first functional segment, and the second functional segment are cylinders with the same outer diameter and coaxially arranged, and the first direction is the axial direction of the medium segment, the first functional segment, and the second functional segment.

[0025] An embodiment of the present application further provides an aerosol generating system, comprising an aerosol generating device and the aerosol generating article described above, wherein the aerosol generating device comprises a heating element, and the heating element 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, a first functional segment, and a second functional segment arranged in sequence along a first direction. The medium segment generates an aerosol when heated. One of the first functional segment and the second functional segment is a cooling segment, which is used to cool the aerosol to avoid the problem of "burning the mouth". The other of the first functional segment and the second functional segment can have supporting and / or filtering and / or cooling functions to improve the user experience.

[0027] The medium segment of the aerosol-generating product provided in the embodiment of the present application is an integrated structure. The interior of the medium segment has at least one airway hole, and the airway hole passes through at least one end of the medium segment along the first direction. The hole wall of the airway hole constitutes the inner surface of the medium segment. The airway hole can increase the inner surface area of ​​the medium segment, facilitate heat transfer, and improve heating efficiency. The medium segment generates aerosol after heating, and the aerosol is collected in the airway hole and transported to the suction end under the action of the negative pressure of suction. The airway hole can reduce the user's suction resistance, the amount of smoke is large, and the stability of aerosol release and suction is improved. In addition, the medium segment is an integrated structure. For example, the integrated structure can be formed by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment, further improving the stability of aerosol release and suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic structural diagram of an aerosol generating article according to an embodiment of the present application;

[0029] 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;

[0030] FIG3 is a cross-sectional schematic diagram of an aerosol-generating article in a second embodiment of the present application;

[0031] FIG4 is a cross-sectional schematic diagram of an aerosol-generating article in a third embodiment of the present application;

[0032] FIG5 is a cross-sectional schematic diagram of an aerosol-generating article in a fourth embodiment of the present application;

[0033] FIG6 is a cross-sectional schematic diagram of an aerosol-generating article in a fifth embodiment of the present application;

[0034] FIG7 is a cross-sectional schematic diagram of an aerosol-generating article in a sixth embodiment of the present application;

[0035] FIG8 is a cross-sectional schematic diagram of an aerosol generating article in a seventh embodiment of the present application;

[0036] FIG9 is a schematic cross-sectional view of an aerosol-generating article in an eighth embodiment of the present application;

[0037] FIG10 is a schematic cross-sectional view of an aerosol-generating article according to a ninth embodiment of the present application. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] An embodiment of the present application provides an aerosol generating product, as shown in FIG. 1 to FIG. 10 , which includes a medium segment 10 , a first functional segment, and a second functional segment arranged in sequence along a first direction.

[0041] One of the first functional section and the second functional section is a cooling section 20 for cooling the aerosol.

[0042] The other one of the first functional section and the second functional section may have supporting and / or filtering and / or cooling functions.

[0043] The aerosol-generating article 100 relies on the medium segment 10 to generate aerosol, and the first functional segment and the second functional segment are not used to generate aerosol.

[0044] 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.

[0045] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0046] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0047] 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.

[0048] The medium segment 10, the first functional segment and the second functional segment are separable structures. 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 first functional segment and the second functional segment are a combined structure. Therefore, different medium segments 10, different first functional segments and different second functional segments can be reasonably matched to meet the different suction needs of customers.

[0049] The medium segment 10 is an integrated structure, for example, an integrated structure can be formed by extrusion, injection molding or die-casting. Extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder discharge port to form 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 sucked or stops being heated, it is an integrated medium, which is not prone to disintegration and falling off, solving the problems of the thin-sheet, filamentous or loose granular medium segment 10 in the prior art, such as loose flakes, falling off of filamentous components and granular components, and difficulty in cleaning, as well as the problem of uneven components.

[0050] The medium segment 10 has at least one air passage hole 10 a inside. Please refer to FIG. 2 to FIG. 10 . The air passage hole 10 a passes through at least one end of the medium segment 10 along the first direction.

[0051] The interior of the medium segment 10 has at least one airway hole 10 a . The interior of the medium segment 10 may have one airway hole 10 a or multiple airway holes 10 a .

[0052] It should be noted that the multiple mentioned in the embodiments of the present application refers to a number of two or more.

[0053] In some embodiments, the airway holes 10a pass through the same end of the medium segment 10 along the first direction, and the other end is closed.

[0054] In other embodiments, a portion of the air passage holes 10a passes through one end of the medium segment 10 along the first direction, and another portion of the air passage holes 10a passes through the other end of the medium segment 10 along the first direction.

[0055] In some further embodiments, referring to Figures 2 to 10 , each airway hole 10a passes through both ends of the media segment 10 along a first direction, i.e., the airway hole 10a extends along the first direction of the media segment 10, and airflow can flow from one end of the media segment 10 through the airway hole 10a to the other end of the media segment 10. Preferably, the airway hole 10a is parallel to the central axis of the media segment 10.

[0056] The pore walls of the airway holes 10a constitute the inner surface of the medium segment 10. The airway holes 10a can increase the inner surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. In addition, the medium segment 10 generates aerosol after heating. The aerosol is collected in the airway holes 10a and transported to the suction end under the action of the suction negative pressure. The airway holes 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.

[0057] It should be noted that the shape of the airway hole 10a is not limited here. For example, on a plane perpendicular to the first direction of the medium segment 10, the cross-sectional shape of the airway hole 10a includes but is not limited to a circle (as shown in Figures 5 and 8), an ellipse, a runway shape or a polygon, wherein the polygon includes a regular or irregular polygon.

[0058] Among them, the runway shape refers to: a shape similar to an athletic track, consisting of two semicircles and two parallel straight edges alternately connected.

[0059] The cross-sectional shape of the airway hole 10 a refers to the cross-sectional shape of the airway hole 10 a cut along a plane perpendicular to the first direction of the medium segment 10 .

[0060] In addition, the cross-sectional shapes of the airway holes 10a can be exactly the same, or the cross-sectional shapes of at least two of the airway holes 10a can be different. For example, the cross-sectional shape of at least one airway hole 10a can be circular, and the cross-sectional shape of at least one airway hole 10a can be polygonal.

[0061] Exemplarily, referring to FIG. 1 to FIG. 10 , the aerosol generating article 100 includes a wrapping layer 40 , which wraps around the circumferential surfaces of the medium segment 10 , the first functional segment, and the second functional segment.

[0062] The wrapping layer 40 has a certain hardness and 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 coming into contact with other components in the aerosol generating device and causing contamination.

[0063] It should be noted that the media segment 10 and the wrapping layer 40 can be an integrated structure. That is, the media segment 10 and the wrapping layer 40 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 40, thereby reducing the probability of separation between the media segment 10 and the wrapping layer 40 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 40 can be manufactured simultaneously, thereby reducing the number of manufacturing steps and improving production efficiency.

[0064] For example, the integral structure of the media portion and the wrapping layer 40 is formed by a co-extrusion process.

[0065] Of course, the medium segment 10 and the wrapping layer 40 may also be a separate structure.

[0066] An embodiment of the present application further provides an aerosol generating system, including an aerosol generating device and a sol generating product provided in an 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.

[0067] 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.

[0068] In the embodiments of the present application, the first direction does not specifically refer to the direction in which the outer contour of the media segment 10 is longest. Specifically, the direction in which the aerosol-generating article 100 is inserted into the storage chamber and the direction in which the aerosol-generating article 100 is removed from the storage chamber are both parallel to the first direction. The length of the media segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0069] 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 direction for placing the aerosol-generating article 100 in and out of the receiving chamber. The first direction of the media segment 10 can be any of the length, width, or height of the rectangular parallelepiped.

[0070] An embodiment of the present application provides an aerosol-generating product, wherein the aerosol-generating product 100 includes a medium segment 10, a first functional segment, and a second functional segment arranged in sequence along a first direction. The medium segment 10 generates an aerosol when heated. One of the first functional segment and the second functional segment is a cooling segment 20, which is used to cool the aerosol to avoid the problem of "burning the mouth". The other of the first functional segment and the second functional segment can have supporting and / or filtering and / or cooling functions to improve the user experience.

[0071] The medium segment 10 of the aerosol-generating article 100 provided in the embodiment of the present application is a one-piece structure. The medium segment 10 has at least one airway hole 10a inside, and the airway hole 10a passes through at least one end of the medium segment 10 along a first direction. The hole wall of the airway hole 10a constitutes the inner surface of the medium segment 10. The airway hole 10a can increase the inner surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium segment 10 is heated to generate an aerosol, which is collected in the airway hole 10a and transported to the suction end under the action of the negative suction pressure. The airway hole 10a can reduce the user's inhalation resistance, increase the amount of smoke, and improve the stability of aerosol release and suction. In addition, the medium segment 10 is a one-piece structure, for example, it can be formed into an one-piece structure through extrusion, die-casting, or injection molding to improve the uniformity of the density of the medium segment 10, further improving the stability of aerosol release and suction.

[0072] For example, the dielectric segment 10, the first functional segment, and the second functional segment are separable structures. Thus, different dielectric segments 10, different first functional segments, and different second functional segments can be reasonably matched to meet customers' requirements for different suction resistances and temperatures, further improving the user experience.

[0073] 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.

[0074] The plant component is used to generate an 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 enhance the release of aroma during the inhalation process, thereby improving the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 10 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.

[0075] 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.

[0076] 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 medium segment 10, 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, reducing die wear. 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.

[0077] 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.

[0078] Illustratively, the binder component wets the interface of the component materials, creating close contact and intermolecular attraction, thereby bonding the component materials, such as powders and liquids. The binder component can be a natural plant extract, a non-ionically modified viscous polysaccharide, or a combination thereof, including tamarind polysaccharide, guar gum, and modified cellulose (e.g., carboxymethyl cellulose). The binder serves to bond the particles together, preventing them from loosening. Furthermore, it improves the water resistance of the media segment 10 and is harmless to the human body.

[0079] 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.

[0080] It should be noted that the media segment 10 is formed with micropores, which are interconnected to form micro-airways that are connected to the first airway aperture 10a. In other words, the micro-airways are connected to the first airway aperture 10a. Since the micro-airways are formed by the interconnected micropores, the micropores are connected to the channel 10a. Furthermore, it is understood that the interconnected micropores can be partially interconnected while partially disconnected, or all micropores can be interconnected. For example, in an embodiment in which the media segment 10 is a particle assembly, the gaps between the particles constitute the micropores.

[0081] It should be noted that the above-mentioned airway holes 10a are holes in the macroscopic sense, and the micropores are holes in the microscopic sense. The cross-sectional area of ​​the airway holes 10a is much larger than the cross-sectional area of ​​the micropores. For example, the cross-sectional area of ​​the airway holes 10a is at least 20 times the cross-sectional area of ​​the micropores. When the size of the micropores remains roughly unchanged, when it is less than 20 times, the size of the first airway hole 10a will be too small, and the aerosol will not be easily released from the inner wall of the first airway hole 10a into the first airway hole 10a, and it will cause the user's suction resistance to be large, and the user's suction experience will be reduced. Therefore, in this embodiment, when the cross-sectional area of ​​the airway hole 10a is greater than or equal to 20 times the cross-sectional area of ​​the micropores, the rate of aerosol release from the inner wall of the airway hole 10a can be guaranteed, and the suction resistance can also be reduced, thereby improving the user's suction experience.

[0082] In some embodiments, the cross-sectional area of ​​the airway pores 10a is 20 to 60,000 times the cross-sectional area of ​​the micropores. If the cross-sectional area of ​​the airway pores 10a exceeds 60,000 times the cross-sectional area of ​​the micropores, the area of ​​the airway pores 10a will be too large, the overall quality of the generated aerosol will be reduced, the utilization rate of the aerosol generation substrate will be low, and the heating rate will be high, making the aerosol easily released from the micropores into the environment.

[0083] Illustratively, the cross-sectional area of ​​the airway pore 10a is 100 to 40,000 times the cross-sectional area of ​​the micropore.

[0084] In some embodiments, the diameter of the airway holes 10a ranges from 0.05 mm (millimeter) to 6 mm. When the diameter of the airway holes 10a is less than 0.05 mm, the manufacturing cost of the medium segment 10 is high and problems such as high suction resistance and low medium utilization are likely to occur. When the diameter of the airway holes 10a is greater than 6 mm, the cross-sectional area is large, and the airflow velocity under the same volume is lower under suction. Aerosol is easily deposited, resulting in low aerosol utilization.

[0085] The specific value of the aperture of the airway hole 10a is not limited, for example, 0.05mm, 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 6mm, etc.

[0086] It should be noted that the aperture of the airway hole 10a refers to its equivalent diameter.

[0087] The equivalent diameter refers to the diameter of a circle with the same cross-sectional area as the object being measured.

[0088] The airway holes 10a and 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 airway holes 10a through the gaps between the wall materials or the micro-airways. The aerosols released by the atomized medium exposed to the airway holes 10a (i.e., the atomized medium located on the inner wall surface of the airway holes 10a) can be directly released into the airway holes 10a. The aerosols between adjacent airway holes 10a can also circulate through the micro-airways and be transported to the suction end under the action of the negative suction pressure.

[0089] More specifically, as illustrated in FIG2 , the media segment 10 has micropores within it, and the micropores are at least partially connected to each other and to the airway holes 10a. When the media segment 10 is heated, external airflow, such as air, can enter the media segment 10 through the airway holes 10a and diffuse. The aerosol generated by the media of the media segment 10 surrounding the airway holes 10a (i.e., the portion of the media segment 10 exposed to the airway holes 10a) directly enters the airway holes 10a, and the aerosol generated by other parts of the media segment 10 (i.e., the portion of the media segment not exposed to the airway holes 10a) can be collected into the airway holes 10a through the micropores. Thus, during the inhalation process, the aerosol collected in the airway holes 10a flows into the central airway 20a of the cooling segment 20, and finally enters the user's mouth after being filtered by the filter segment 30.

[0090] It should be noted that one of the first and second functional sections is the cooling section 20, and the other of the first and second functional sections can be the cooling section 20, the support section, or the filtration section 30. The cooling section 20 has a cooling function, the support section has a support function, and the filtration section 30 has a filtration function. Referring to Figures 2 to 10, the embodiments of this application are described using an example in which one of the first and second functional sections is the cooling section 20, and the other of the first and second functional sections is the filtration section 30.

[0091] It is understandable that, since the aerosol flows through the support section or the filter section 30 , the support section or the filter section 30 can also play a certain role in cooling the aerosol.

[0092] For example, in some embodiments, referring to Figures 2, 3, 5, 6, 9, and 10, the first functional section is the cooling section 20, and the second functional section is the filtration section 30. That is, the aerosol generated by the heating medium section 10 first flows through the cooling section 20 for cooling. After cooling, the aerosol then flows through the filtration section 30, which filters out large particles and undesirable impurities in the aerosol. In other words, the aerosol generated by the heating medium section 10 passes through the cooling section 20 and the filtration section 30, sequentially cooling and filtering, before being inhaled by the user.

[0093] In other embodiments, as shown in Figures 4, 7, and 8, the first functional section is the filtration section 30, and the second functional section is the cooling section 20. Specifically, the aerosol generated by the heating medium section 10 first flows through the filtration section 30 for filtration, which removes large particles and undesirable impurities from the aerosol. The filtered aerosol then flows through the cooling section 20 for cooling. In other words, the aerosol generated by the heating medium section 10 passes through the filtration section 30 and the cooling section 20, where it is filtered and cooled, before being inhaled by the user.

[0094] It should be noted that the composition of the first and second functional segments differs from that of the media segment 10. For example, in some embodiments, the first and second functional segments are formed of cellulose acetate. The filter segment 30 formed of cellulose acetate can filter large particles and undesirable impurities in the aerosol, while the cooling segment 20 formed of cellulose acetate effectively reduces the temperature of the aerosol.

[0095] Exemplarily, the outer diameters of the medium segment 10, the first functional segment, and the second functional segment are the same, which makes molding and use easier.

[0096] For example, the cooling section 20 can be a hollow tubular structure. The hollow tubular structure can be, for example, a hollow paper tube, a cellulose acetate tube, or an aluminum foil tube. Specifically, the cooling section 20 has a central airway 20a with a relatively large aperture. The central airway 20a passes through both ends of the cooling section 20 along the first direction. The aerosol generated by the medium section 10 can flow through the central airway 20a for cooling, which facilitates the aerosol to gather toward the center for inhalation, resulting in better aerosol clumping.

[0097] For example, the filter segment 30 is a solid acetate fiber structure. That is, the filter segment 30 is a solid structure formed of acetate fiber material, and the filter segment 30 is provided with filter holes, which are micropores. In other words, the filter holes are pores in the microscopic sense. In other words, the "solid structure" in this application refers to a structure with only micropores and no macroscopic pores.

[0098] At the microscopic level, the filter segment 30 has multiple structures stacked together to form micropores, which increases the surface area of ​​the filter segment 30, thereby improving the effect of filtering impurities and effectively absorbing aerosol particles with excessively large diameters, thereby improving the user's taste.

[0099] For example, one of the first and second functional sections is a solid structure, while the other is a hollow structure. The solid structure, for example, is the filter section 30. The solid filter section 30 can improve the reliability of aerosol filtration and, to a certain extent, ensure that all aerosols are filtered at least once. The hollow structure, for example, is the cooling section 20. The hollow cooling section 20 can increase the contact area between the aerosol and the cooling section 20 and reduce the resistance to draw. Thus, by configuring one of the first and second functional sections as a solid structure and the other as a hollow structure, the functions of cooling, filtering, and adjusting the resistance to draw can be achieved simultaneously.

[0100] Exemplarily, referring to FIG. 2 , FIG. 9 and FIG. 10 , both ends of the first functional segment 20 of the aerosol-generating article 100 along the first direction are in contact with the medium segment 10 and the second functional segment 30 , respectively.

[0101] 3 to 8 , the aerosol-generating article 100 has at least one cavity 100a disposed therein. It should be noted that the number of cavities 100a is not limited, that is, the number of cavities 100a may be one or more.

[0102] It should be noted that the specific location and formation method of cavity 100a are not limited herein. For example, it can be formed between any two of the dielectric segment 10, the first functional segment, and the second functional segment; it can also be formed at the end of the dielectric segment 10 away from the first functional segment; or it can be formed at the end of the second functional segment away from the first functional segment. The material of the wrapping layer 40 has a certain hardness, which provides the cavity 100a structure with good support strength.

[0103] For example, in some embodiments, as shown in Figures 5 and 8 , the dielectric segment 10 and the first functional segment are spaced apart and, together with the wrapping layer 40, define a first cavity 100a. Specifically, the dielectric segment 10 and the first functional segment are spaced apart and, together with the wrapping layer 40 surrounding the dielectric segment 10 and the first functional segment, form the first cavity 100a. It is understood that by forming the first cavity 100a between the dielectric segment 10 and the first functional segment, aerosol generated by heating the dielectric segment 10 can flow into the first cavity 100a. The provision of the first cavity 100a can buffer the aerosol generated by the dielectric segment 10, facilitating aerosol extraction and improving the utilization rate of the dielectric segment 10. Furthermore, the provision of the first cavity 100a can achieve a better cooling effect by increasing the internal surface area. It can also prevent aerosol deposition and adsorption on the contact surface caused by direct contact between the dielectric segment 10 and the first functional segment, thereby reducing aerosol loss during transmission.

[0104] For example, in some embodiments, as shown in Figures 6 and 7 , the first and second functional segments are spaced apart and, together with the wrapping layer 40, define a second cavity 100a. Specifically, the first and second functional segments are spaced apart and, together with the wrapping layer 40 surrounding the first and second functional segments, form the second cavity 100a. It is understood that by forming the second cavity 100a between the first and second functional segments, the aerosol generated by the heated dielectric segment 10 can flow to the first functional segment and then to the second cavity 100a for buffering. The provision of the second cavity 100a can buffer the aerosol generated by the dielectric segment 10, facilitating aerosol extraction and improving the utilization rate of the dielectric segment 10. Furthermore, the provision of the second cavity 100a can achieve a better cooling effect by increasing the internal surface area. It can also prevent aerosol deposition and adsorption on the contact surface caused by direct contact between the first and second functional segments, thereby reducing aerosol loss during transmission.

[0105] For example, in some embodiments, the wrapping layer 40 protrudes from the end surface of the media segment 10 facing away from the first functional segment, and defines a third cavity 100a with the end surface of the media segment 10. That is, the third cavity 100a is provided at least at the distal lip end of the media segment 10. The provision of the third cavity 100a facilitates the natural diffusion of aerosol generated by the heated media segment 10 and facilitates the slitting process of the aerosol-generating article 100.

[0106] 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.

[0107] For example, in some embodiments, as shown in Figures 3 and 4 , the wrapping layer 40 protrudes from the end surface of the second functional segment facing away from the first functional segment, and defines a fourth cavity 100a with the end surface of the dielectric segment 10. Specifically, the fourth cavity 100a is provided at least at the proximal lip end of the second functional segment, increasing the area of ​​contact with air near the proximal lip end of the second functional segment and reducing heat conduction efficiency. As a result, after the aerosol flows out of the inlet lip end of the second functional segment, it can quickly come into contact with air. Taking advantage of the relatively low thermal conductivity of air, the aerosol quickly exchanges heat and cools down when it encounters the cool external air, thus alleviating the "scalding" problem of the smoke, facilitating aerosol extraction and cooling functions, and reducing draw resistance.

[0108] For example, referring to FIG. 9 , the aerosol-generating article 100 includes a coating layer 50 covering the circumferential surface of the dielectric segment 10, with the coating layer 50 interposed between the wrapping layer 40 and the dielectric segment 10. In other words, in addition to the coating layer 40 covering the circumferential surfaces of the dielectric segment 10, the first functional segment, and the second functional segment, the dielectric segment 10 also includes a separate internal coating layer 50 interposed between the wrapping layer 40 and the dielectric segment 10. This coating layer 50 can better prevent aerosol leakage and improve aerosol extraction efficiency and utilization.

[0109] For example, referring to Figure 10 , at least one end surface of the media segment 10, the first functional segment, or the second functional segment along the first direction comprises a first curved surface 100b having a non-zero curvature. The provision of the first curved surface 100b can increase the contact area between the media segment 10 and / or the aerosol and the air, or increase the contact area between the media segment 10, the first functional segment, or the second functional segment, thereby improving aerosol extraction efficiency and achieving better aerosol extraction, cooling, and filtration effects.

[0110] The first curved surface 100b with non-zero curvature can be a curved surface convex toward the proximal lip end, a curved surface concave toward the proximal lip end, a curved surface convex toward the distal lip end, or a curved surface concave toward the distal lip end.

[0111] At least one end face of the dielectric segment 10, the first functional segment or the second functional segment along the first direction refers to at least one end face of the two end faces of the dielectric segment 10 along the first direction, the two end faces of the first functional segment along the first direction, and the two end faces of the second functional segment along the first direction.

[0112] Exemplarily, the end surface adjacent to the first curved surface 100b in the dielectric segment 10, the first functional segment or the second functional segment is the second curved surface 100c adapted to the first curved surface 100b, or is the first curved surface 100b.

[0113] For example, when the first curved surface 100b is a curved surface convex toward the proximal lip end, the second curved surface 100c can be a curved surface concave toward the proximal lip end; when the first curved surface 100b is a curved surface convex toward the distal lip end, the second curved surface 100c can be a curved surface concave toward the distal lip end.

[0114] It is understood that when the dielectric segment 10, the first functional segment, or the second functional segment directly contacts each other, the first curved surface 100b can cooperate with the second curved surface 100c to increase the contact area between the two, thereby achieving better aerosol extraction, cooling, and filtration effects. Furthermore, the curved surface contact can also improve the connection stability between the two.

[0115] For example, the medium segment 10 and the first or second functional segment are cylindrical bodies having the same outer diameter and are coaxially arranged. The first direction is the axial direction of the medium segment 10, the first or second functional segment. By configuring the medium segment 10, the first or second functional segment as cylindrical bodies and arranging them sequentially along the axial direction of the medium segment 10, the first or second functional segment, the structure of the aerosol-generating article 100 can be made more compact, thereby improving the user experience.

[0116] 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.

[0117] 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 article, comprising a medium segment, a first functional segment and a second functional segment arranged in sequence along a first direction; One of the first functional section and the second functional section is a temperature reduction section; The medium segment is an integrated structure, and has at least one airway hole inside the medium segment, and the airway hole passes through at least one end of the medium segment along the first direction.

2. According to the aerosol generating product according to claim 1, the medium segment, the first functional segment and the second functional segment are separable structures, the first functional segment is the cooling segment, and the second functional segment is the filtering segment; or, the first functional segment is the filtering segment, and the second functional segment is the cooling segment.

3. According to the aerosol generating product of claim 2, the cooling section is a hollow tubular structure; and / or the filtering section is a solid acetate fiber structure. 4 . The aerosol-generating article according to claim 1 , wherein one of the first functional segment and the second functional segment is a solid structure, and the other is a hollow structure. 5 . The aerosol-generating article according to claim 1 , comprising a wrapping layer, wherein the wrapping layer wraps around the circumferential surfaces of the media segment, the first functional segment, and the second functional segment.

6. According to the aerosol generating product according to claim 5, the medium segment and the first functional segment are spaced apart and together with the wrapping layer define a first cavity; and / or the first functional segment and the second functional segment are spaced apart and together with the wrapping layer define a second cavity.

7. According to the aerosol generating product according to claim 5, the wrapping layer protrudes from the end surface of the medium segment on the side away from the first functional segment, and defines a third cavity together with the end surface of the medium segment; and / or the wrapping layer protrudes from the end surface of the second functional segment on the side away from the first functional segment, and defines a fourth cavity together with the end surface of the medium segment.

8. The aerosol generating article according to claim 5, comprising a coating layer coated on the circumferential surface of the medium segment, wherein the coating layer is sandwiched between the wrapping layer and the medium segment. 9 . The aerosol-generating article according to claim 1 , wherein two ends of the first functional segment along the first direction are in contact with the medium segment and the second functional segment respectively.

10. The aerosol-generating article according to claim 1, wherein at least one end surface of the medium segment, the first functional segment or the second functional segment along the first direction is a first curved surface with a non-zero curvature.

11. The aerosol generating article according to claim 10, wherein the end surface adjacent to the first curved surface in the medium segment, the first functional segment or the second functional segment is a second curved surface matched with the first curved surface, or is the first curved surface.

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

13. An aerosol generating system, comprising an aerosol generating device and the aerosol generating article according to any one of claims 1 to 12, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

Images