Aerosol generating product and aerosol generating system

Abstract

The embodiment of the invention provides an aerosol generating product and an aerosol generating system. The aerosol generating product comprises a medium section, a first functional section and a second functional section which are sequentially arranged along a first direction, one of the first functional section and the second functional section is a cooling section; the medium section is of an integrated structure, at least one air channel hole is formed in the medium section, and the air channel hole penetrates through at least one end, in the first direction, of the medium section. The medium section of the aerosol generating product provided by the embodiment of the invention is heated to generate aerosol, the aerosol is collected in the airway hole and is conveyed to the suction end under the action of suction negative pressure, the airway hole can reduce suction resistance of suction of a user, the amount of smoke is large, and the stability of aerosol release and suction is improved. Moreover, the medium section is of an integrated structure, so that the density uniformity of the medium section is improved, and the stability of aerosol release and suction is further 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 system. 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 volatilize when heated to generate an aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated to a degree just sufficient to emit a fragrance. The aerosol-generating substrate does not burn, but instead loads an atomizer and releases the atomizer through high-temperature heating to form smoke when used.

[0003] In the prior art, when smoking a smoking product, the suction resistance is relatively large, and the aerosol release and suction are unstable, which reduces the user's usage experience. Summary of the invention

[0004] In view of this, the present application hopes to provide an aerosol generating product and an aerosol generating system, which can improve the stability of aerosol release and inhalation.

[0005] To achieve the above-mentioned object, an embodiment of the present application provides an aerosol generating product, comprising a medium segment, a first functional segment, and a second functional segment arranged in sequence along a first direction;

[0006] One of the first functional section and the second functional section is a temperature reduction section;

[0007] 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.

[0008] 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.

[0009] In one embodiment, the first functional section is a filtering section, and the second functional section is the cooling section.

[0010] In one embodiment, the cooling section is a hollow tubular structure.

[0011] In one embodiment, the filter segment is a solid acetate fiber structure.

[0012] 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.

[0013] In one embodiment, the aerosol generating article comprises a wrapping layer, which wraps around the circumferential surfaces of the medium segment, the first functional segment and the second functional segment.

[0014] In one embodiment, the medium segment and the first functional segment are spaced apart from each other and define a first cavity together with the wrapping layer.

[0015] In one embodiment, the first functional section and the second functional section are spaced apart from each other and define a second cavity together with the wrapping layer.

[0016] In one embodiment, the wrapping layer protrudes from the end surface of the medium segment on the side facing away from the first functional segment, and defines a third cavity together with the end surface of the medium segment.

[0017] In one embodiment, the wrapping layer protrudes from an end surface of the second functional segment on a side facing away from the first functional segment, and defines a fourth cavity together with the end surface of the medium segment.

[0018] 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.

[0019] In one embodiment, two ends of the first functional segment along the first direction are in contact with the medium segment and the second functional segment respectively.

[0020] In one embodiment, 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.

[0021] In one embodiment, the end surface of the medium segment, the first functional segment, or the second functional segment adjacent to the first curved surface is a second curved surface matched with the first curved surface, or is the first curved surface.

[0022] In one embodiment, the medium segment, the first functional segment and the second functional segment are coaxially arranged cylinders with the same outer diameter, and the first direction is the axial direction of the medium segment, the first functional segment and the second functional segment.

[0023] An embodiment of the present application further provides an aerosol generating system, comprising an aerosol generating device and the aerosol generating product 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.

[0024] 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.

[0025] The medium segment of the aerosol generating product provided in the embodiment of the present application is an integrated structure, and 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, and 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 suction resistance of the user's suction, and the amount of smoke is large, which improves the stability of aerosol release and suction. In addition, the medium segment is an integrated structure, for example, an integrated structure can be formed by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment, and further improve the stability of aerosol release and suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0027] 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;

[0028] Figure 3 is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0029] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0030] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0031] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0032] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0033] Figure 8 is a schematic cross-sectional view of an aerosol generating article in a seventh embodiment of the present application;

[0034] Fig. 9 is a schematic cross-sectional view of an aerosol generating article in an eighth embodiment of the present application;

[0035] Fig.10 It is a schematic cross-sectional view of an aerosol generating article in the ninth embodiment of the present application.

[0036] Description of Reference Numerals

[0037] 10. Medium section; 10a. Airway hole; 20. Cooling section; 20a. Central airway; 30. Filter section; 40. Wrapping layer; 50. Coating layer; 100. Aerosol generating product; 100a. Cavity; 100b. First curved surface; 100c. Second curved surface. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] The present application provides an aerosol generating product. Figures 1 to 10 , including a dielectric 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 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.

[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 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.

[0048] The medium segment 10, the first functional segment and the second functional segment are separable structures, and the three are not connected together by mechanical, physical structure or adhesive, 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, so different medium segments 10, different first functional segments and different second functional segments can be reasonably matched to meet 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 outlet 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 easy to disintegrate and fall off, and solves the problems of the thin sheet, filamentous component, granular component falling off, and difficulty in cleaning in the prior art of the thin sheet, filamentous component or loose granular medium segment 10. And the problem of uneven components.

[0050] The interior of the medium section 10 has at least one air passage hole 10a, see Figures 2 to 10 The airway hole 10a passes through at least one end of the medium segment 10 along the first direction.

[0051] The inside of the medium segment 10 has at least one air passage hole 10 a . The inside of the medium segment 10 may have one air passage hole 10 a , or the inside of the medium segment 10 may have multiple air passage 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 airway holes 10a passes through one end of the medium segment 10 along the first direction, and another portion of the airway holes 10a passes through the other end of the medium segment 10 along the first direction.

[0055] In some other embodiments, please refer to Figures 2 to 10 Each airway hole 10a passes through both ends of the medium segment 10 along the first direction, that is, the airway hole 10a extends along the first direction of the medium segment 10, and the airflow can flow from one end of the medium segment 10 through the airway hole 10a to the other end of the medium segment 10. Preferably, the airway hole 10a is parallel to the central axis of the medium segment 10.

[0056] 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. In addition, the medium segment 10 generates aerosol after heating, and the aerosol is collected in the airway hole 10a and transported to the suction end under the action of the suction negative pressure. The airway hole 10a can reduce the suction resistance of the user 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 (such as Figure 5 and Figure 8 ), elliptical, racetrack or polygonal, wherein the polygon includes regular or irregular polygons.

[0058] Among them, the runway shape refers to: a shape similar to an athletics track, composed 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] For example, see Figures 1 to 10 The aerosol generating article 100 includes a wrapping layer 40, which wraps around the circumferential surface 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, thereby reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 coming into contact with the air and becoming damp and deteriorating. 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 medium segment 10 and the wrapping layer 40 can be an integrated structure. That is, the medium segment 10 and the wrapping layer 40 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 40 is fixed, which can reduce the probability of the medium segment 10 and the wrapping layer 40 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 40 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0064] For example, the integral structure of the media portion and the wrap 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 split 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, wherein the aerosol generating device includes a heating component (not shown), and the heating component 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 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.

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

[0069] 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 direction in which the aerosol generating article 100 is taken out of the containing chamber. The first direction of the medium segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0070] An embodiment of the present application provides an aerosol generating product. 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 product 100 provided in the embodiment of the present application is an integrated structure, and the inside of the medium segment 10 has at least one airway hole 10a, and the airway hole 10a passes through at least one end of the medium segment 10 along the first direction, and the hole wall of the airway hole 10a constitutes the inner surface of the medium segment 10, and 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 generates aerosol after heating, and the aerosol is collected in the airway hole 10a and transported to the suction end under the action of the suction negative pressure. The airway hole 10a can reduce the suction resistance of the user's suction, and the amount of smoke is large, which improves the stability of aerosol release and suction. In addition, the medium segment 10 is an integrated structure, for example, an integrated structure can be formed by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment 10, and further improve 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. Therefore, different dielectric segments 10, different first functional segments and different second functional segments can be reasonably matched to meet the needs of customers 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 suction process and enhance 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] 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.

[0076] 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, talcum powder, 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 medium section 10, 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. 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.

[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, 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.

[0078] 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 polysaccharide, 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 medium segment 10 and is harmless to the human body.

[0079] 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.

[0080] It should be noted that the medium segment 10 is formed with micropores, and the micropores are connected to each other and form a micro-airway connected to the first airway hole 10a. In other words, the micro-airway is connected to the first airway hole 10a. Since the micro-airway is formed by the connection between the micropores, the micropores are connected to the channel 10a. In addition, it can be understood that the connection between the micropores can be that some of the micropores are connected and some of the micropores are not connected; or all the micropores are connected to each other. For example, in the embodiment where the medium segment 10 is a particle combination, the gaps between the particles constitute the micropores.

[0081] It should be noted that the above-mentioned airway hole 10a belongs to a hole in the macroscopic sense, and the micropore belongs to a hole in the microscopic sense. The cross-sectional area of ​​the airway hole 10a is much larger than the cross-sectional area of ​​the micropore. Exemplarily, the cross-sectional area of ​​the airway hole 10a is at least 20 times the cross-sectional area of ​​the micropore. When the size of the micropore 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 decrease. 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 micropore, the rate at which the aerosol is released 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 hole 10a is 20 to 60,000 times the cross-sectional area of ​​the micropore. If the cross-sectional area of ​​the airway hole 10a exceeds 60,000 times the cross-sectional area of ​​the micropore, the area of ​​the airway hole 10a will be too large, the overall quality of the generated aerosol will decrease, the utilization rate of the aerosol generation substrate will be low, and the heating rate will be large, and the aerosol will be easily released from the micropore into the environment.

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

[0084] In some embodiments, the diameter of the airway hole 10a ranges from 0.05 mm (millimeter) to 6 mm. When the diameter of the airway hole 10a is less than 0.05 mm, the processing cost of the medium segment 10 is high and it is easy to have problems such as large suction resistance and low medium utilization. When the diameter of the airway hole 10a is greater than 6 mm, the cross-sectional area is large, the flow rate of the airflow is smaller under the same volume in the suction state, and the aerosol is prone to deposition, 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 the micro-airways 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 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 to the airway holes 10a. The aerosols between adjacent airway holes 10a can also circulate with each other through the micro-airways and be transported to the suction end under the action of the suction negative pressure.

[0089] More specifically, Figure 2 For explanation, the medium segment 10 has micropores inside, and the micropores are at least partially connected to each other and connected to the airway hole 10a. When the medium segment 10 is heated, external airflow such as air can enter the medium segment 10 through the airway hole 10a to diffuse, and the aerosol generated by the medium of the medium segment 10 surrounding the airway hole 10a (i.e., the part of the medium segment 10 exposed to the airway hole 10a) directly enters the airway hole 10a, and the aerosol generated by other parts of the medium segment 10 (i.e., the part of the medium segment not exposed to the airway hole 10a) can be collected into the airway hole 10a through the micropores. In this way, during the suction process, the aerosol collected in the airway hole 10a flows to 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 functional section and the second functional section is the cooling section 20, and the other of the first functional section and the second functional section can be the cooling section 20, the supporting section or the filtering section 30. The cooling section 20 has a cooling function, the supporting section has a supporting function, and the filtering section 30 has a filtering function. Figures 2 to 10 In the embodiment of the present application, one of the first functional section and the second functional section is the cooling section 20, and the other of the first functional section and the second functional section is the filtering 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 implementations, see Figure 2 , Figure 3 , Figure 5 , Figure 6 , Fig. 9 and Fig.10, the first functional section is the cooling section 20, and the second functional section is the filtering section 30. That is to say, the aerosol generated by the heating medium section 10 first flows through the cooling section 20 for cooling, and then flows through the filtering section 30 after cooling, and the filtering section 30 can filter out large particles and undesirable impurities in the aerosol. That is, the aerosol generated by the heating medium section 10 is cooled and filtered by the cooling section 20 and the filtering section 30 in turn before being inhaled by the user.

[0093] For other implementations, see Figure 4 , Figure 7 and Figure 8 , the first functional section is the filtering section 30, and the second functional section is the cooling section 20. That is to say, the aerosol generated by the heating medium section 10 first flows through the filtering section 30 for filtration, and the filtering section 30 can filter out large particles and undesirable impurities in the aerosol, and the filtered aerosol then flows through the cooling section 20 for cooling. That is, the aerosol generated by the heating medium section 10 is filtered and cooled by the filtering section 30 and the cooling section 20 in turn before being inhaled by the user.

[0094] It should be noted that the components of the first functional segment and the second functional segment are different from the components of the medium segment 10. For example, in some embodiments, the first functional segment and the second functional segment are formed of cellulose acetate material. The filter segment 30 formed of cellulose acetate material can filter large particles and undesirable impurities in the aerosol, and the cooling segment 20 formed of cellulose acetate material 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] Exemplarily, the cooling section 20 may be a hollow tubular structure. The hollow tubular structure may be, for example, a hollow paper tube, a cellulose acetate tube, or an aluminum foil tube. That is, the cooling section 20 is provided with a central airway 20a having a larger aperture inside, and 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, and the aerosol is conducive to gathering toward the center and being sucked, and the aerosol has better agglomeration.

[0097] Exemplarily, the filter section 30 is a solid acetate fiber structure, that is, the filter section 30 is a solid structure formed of acetate fiber material, and filter holes are provided in the filter section 30, and the filter holes are micropores. In other words, the filter holes are microscopic holes, that is, the "solid structure" in this application refers to a structure with only micropores inside and no macroscopic holes.

[0098] At the microscopic level, the filter segment 30 has multiple structures stacked to form micropores to increase the surface area of ​​the filter segment 30, thereby improving the effect of filtering impurities and effectively absorbing aerosol particles with too large a diameter to improve the user's taste.

[0099] Exemplarily, one of the first functional segment and the second functional segment is a solid structure, and the other is a hollow structure. The solid structure is, for example, the filter segment 30. The filter segment 30 with a solid structure can improve the reliability of aerosol filtration and, to a certain extent, can ensure that the aerosol is filtered at least once. The hollow structure is, for example, the cooling segment 20. The cooling segment 20 with a hollow structure can increase the contact area between the aerosol and the cooling segment 20, and reduce the inhalation resistance. Therefore, by setting one of the first functional segment and the second functional segment as a solid structure and the other as a hollow structure, the effects of cooling, filtering and adjusting the inhalation resistance can be taken into account.

[0100] For example, see Figure 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] For example, see Figures 3 to 8 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.

[0102] It should be noted that the specific position and formation method of the cavity 100a are not limited here. For example, it can be formed between any two of the dielectric segment 10, the first functional segment and the second functional segment, or it can be formed at one end of the dielectric segment 10 away from the first functional segment, or it can be formed at one end of the second functional segment away from the first functional segment. The material of the wrapping layer 40 has a certain hardness, so that the cavity 100a structure has a good supporting force.

[0103] For example, in some implementations, see Figure 5 and Figure 8, the medium segment 10 and the first functional segment are spaced apart, and together with the wrapping layer 40, define a first cavity 100a. That is to say, the medium segment 10 and the first functional segment are spaced apart, and the first cavity 100a is formed by the wrapping layer 40 wrapped around the medium segment 10 and the first functional segment. It can be understood that by forming the first cavity 100a between the medium segment 10 and the first functional segment, the aerosol generated by heating the medium segment 10 can flow into the first cavity 100a, and the setting of the first 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 first cavity 100a can achieve a better cooling effect by increasing the inner surface area, and can also avoid the deposition and adsorption of the aerosol on the contact surface caused by the direct contact between the medium segment 10 and the first functional segment, thereby reducing the loss of the aerosol during the transmission process.

[0104] For example, in some implementations, see Figure 6 and Figure 7 , the first functional segment and the second functional segment are spaced apart, and define a second cavity 100a together with the wrapping layer 40. That is to say, the first functional segment and the second functional segment are spaced apart, and the second cavity 100a is formed by the wrapping layer 40 wrapped around the first functional segment and the second functional segment. It can be understood that by forming the second cavity 100a between the first functional segment and the second functional segment, the aerosol generated by heating the medium segment 10 can flow to the first functional segment, and then flow to the second cavity 100a for buffering. The setting of the second cavity 100a can buffer 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 second cavity 100a can achieve a better cooling effect by increasing the inner surface area, and can also avoid the deposition and adsorption of the aerosol on the contact surface caused by the direct contact between the first functional segment and the second functional segment, thereby reducing the loss of the aerosol during the transmission process.

[0105] For example, in some embodiments, the wrapping layer 40 protrudes from the end surface of the medium segment 10 on the side away from the first functional segment, and defines a third cavity 100a with the end surface of the medium segment 10. That is, the third cavity 100a is provided at least at the distal lip end of the medium segment 10, and the provision of the third cavity 100a is conducive to the natural diffusion of the aerosol generated by the medium segment 10 when heated, and is conducive to 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 implementations, see Figure 3 and Figure 4 , the wrapping layer 40 protrudes from the end face of the second functional segment on the side away from the first functional segment, and defines a fourth cavity 100a with the end face of the medium segment 10. That is, at least the fourth cavity 100a is provided at the proximal lip end of the second functional segment, increasing the area of ​​the proximal lip end of the second functional segment in contact with the air, reducing the heat conduction efficiency, so that after the aerosol flows out from the inlet lip end of the second functional segment, it can quickly contact with the air, that is, taking advantage of the relatively low heat conduction efficiency of the air, the aerosol can quickly exchange heat and cool down when it meets the cold air outside, improving the "hot" problem of the smoke, facilitating the aerosol extraction and cooling function, and reducing the inhalation resistance.

[0108] For example, see Fig. 9 The aerosol generating article 100 includes a coating layer 50 coated on the circumferential surface of the medium segment 10, and the coating layer 50 is sandwiched between the wrapping layer 40 and the medium segment 10. That is, in addition to the wrapping layer 40 wrapped on the circumferential surface of the medium segment 10, the first functional segment and the second functional segment, there is also a separate internal coating layer 50 in the medium segment 10, and the coating layer 50 is sandwiched between the wrapping layer 40 and the medium segment 10, which can better prevent the aerosol from leaking out, and improve the extraction efficiency and utilization rate of the aerosol.

[0109] For example, see Fig.10 At least one end surface of the medium segment 10, the first functional segment or the second functional segment along the first direction is a first curved surface 100b with a non-zero curvature. The first curved surface 100b can increase the contact area between the medium segment 10 and / or the aerosol and the air, or increase the contact area between the medium segment 10, the first functional segment or the second functional segment, thereby improving the aerosol extraction efficiency and achieving better aerosol extraction effect, cooling effect and filtering effect.

[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 matched with 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 may 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 may be a curved surface concave toward the distal lip end.

[0114] It is understandable that when the medium segment 10, the first functional segment or the second functional segment are in direct contact, the first curved surface 100b can cooperate with the second curved surface 100c to increase the contact surface area between the two, thereby achieving better aerosol extraction, cooling and filtering effects. In addition, the connection stability between the two can also be improved through the contact of the curved surface.

[0115] Exemplarily, the medium segment 10, the first functional segment or 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 10, the first functional segment or the second functional segment. By configuring the medium segment 10, the first functional segment or the second functional segment as cylinders and arranging them in sequence along the axial direction of the medium segment 10, the first functional segment or the 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 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.

[0117] 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, 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. The aerosol-generating article according to claim 1, wherein 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. The aerosol-generating article according to claim 2, wherein: The cooling section is a hollow tubular structure; and / or the filtering section is a solid acetate fiber structure.

4. The aerosol-generating article of claim 1, wherein: One of the first functional section and the second functional section is a solid structure, and the other is a hollow structure.

5. The aerosol-generating article of claim 1, wherein: 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.

6. An aerosol generating article according to claim 5, characterized in that The medium segment and the first functional segment are spaced apart and define a first cavity together with the wrapping layer; and / or the first functional segment and the second functional segment are spaced apart and define a second cavity together with the wrapping layer.

7. The aerosol-generating article of claim 5, wherein: 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 of claim 5, wherein: 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.

9. The aerosol-generating article of 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 of 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. An aerosol-generating article according to claim 10, characterized in that 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 article of claim 1, wherein: The medium segment, the first functional segment and the second functional segment are cylinders with the same outer diameter and are 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, characterized in that: The aerosol generating system comprises 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 for heating the medium segment to generate an aerosol.

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