Aerosol-generating substrate segment and aerosol-generating article

Abstract

Embodiments of the present application provide an aerosol-generating substrate segment and an aerosol-generating article. The aerosol-generating substrate segment comprises a mesh skeleton and a plurality of plate-shaped channel walls; the mesh skeleton comprises a plurality of first plate-shaped medium walls arranged at intervals and a plurality of second plate-shaped medium walls arranged at intervals, and the plurality of first plate-shaped medium walls intersect with the plurality of second plate-shaped medium walls to define a hollow region located in the mesh skeleton and a plurality of first air channels distributed on the peripheral side of the hollow region; and the plurality of plate-shaped channel walls are circumferentially arranged in the hollow region, so as to define a heating channel having an opening on the peripheral side. The aerosol-generating substrate segment of the embodiments of the present application can improve the structural strength and vaping experience.

Description

Aerosol generation matrix segment and aerosol generation products

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202410780559.4, filed on June 17, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of smoke-generating products technology, and in particular to an aerosol-generating matrix segment and an aerosol-generating product. Background Technology

[0004] Aerosol generating products generally produce aerosols by heating without combustion. Specifically, the aerosol generating product is equipped with an aerosol generating matrix section. The aerosol generating product is heated by heating elements in the aerosol generating device until the aerosol generating matrix section is heated to a level sufficient to emit fragrance, but the aerosol generating matrix section does not burn.

[0005] In related technologies, one heating method involves inserting a heating element into the interior of the aerosol generation matrix section, baking and heating the aerosol generation matrix section from the inside out. However, aerosol generation products using this heating method are prone to deformation and scorching during the heating process, affecting the user's suction experience. Summary of the Invention

[0006] In view of this, the embodiments of this application aim to provide an aerosol generation matrix segment and an aerosol generation article that can improve structural strength and suction experience.

[0007] To achieve the above objectives, embodiments of this application provide an aerosol generation matrix segment, comprising:

[0008] A mesh skeleton, the mesh skeleton including a plurality of spaced first plate-shaped medium walls and a plurality of spaced second plate-shaped medium walls, the plurality of first plate-shaped medium walls intersecting with the plurality of second plate-shaped medium walls to define a hollow area located within the mesh skeleton and a plurality of first air passages distributed on the outer periphery of the hollow area;

[0009] Multiple plate-shaped channel walls are arranged circumferentially within the hollowed-out area to enclose a heating channel with openings on its periphery.

[0010] In one embodiment, the plurality of plate-shaped channel walls include independent channel walls connected to the mesh skeleton and extending in a direction away from the mesh skeleton; wherein, the number of independent channel walls is plurality of, and at least some of the independent channel walls are arranged adjacent to each other and spaced apart, so that the opening is formed between two adjacent independent channel walls.

[0011] In one embodiment, the plurality of plate-shaped channel walls include a first connecting wall and a second connecting wall, wherein the first connecting wall and the second connecting wall intersect.

[0012] In one embodiment, the first connecting wall and the second connecting wall intersect to form a corner, and the corner is used to enclose the heating channel.

[0013] In one embodiment, the plurality of plate-shaped channel walls include individual channel walls connected to the mesh skeleton and extending in a direction away from the mesh skeleton;

[0014] The first connecting wall is adjacent to and spaced apart from one of the independent channel walls, such that the opening is formed between the first connecting wall and the adjacent independent channel wall; and / or,

[0015] The second connecting wall is adjacent to and spaced apart from one of the independent channel walls, so that the opening is formed between the second connecting wall and the adjacent independent channel wall.

[0016] In one embodiment, the first connecting wall and the second connecting wall intersect, such that a portion of the first connecting wall forms a first protrusion protruding from the second connecting wall, and a portion of the second connecting wall forms a second protrusion protruding from the first connecting wall. The first protrusion and the second protrusion are used to enclose the heating channel.

[0017] In one embodiment, the plurality of plate-shaped channel walls include individual channel walls connected to the mesh skeleton and extending in a direction away from the mesh skeleton;

[0018] The first protrusion has an independent channel wall spaced apart from the second connecting wall on its side, and the opening is formed between the first protrusion and the spaced independent channel wall; and / or,

[0019] The second protrusion has an independent channel wall spaced apart from the first connecting wall on the side opposite to the second protrusion, and the opening is formed between the second protrusion and the spaced independent channel wall.

[0020] In one embodiment, the aerosol generating matrix segment has a plurality of connecting wall groups arranged circumferentially along the hollowed-out area, and each connecting wall group has an intersecting first connecting wall and a second connecting wall.

[0021] Multiple connecting wall assemblies are arranged diagonally in pairs; and / or,

[0022] At least two independent channel walls are provided between two adjacent connecting wall groups, and the opening is formed between two adjacent independent channel walls.

[0023] In one embodiment, the wall thickness of the plate-shaped channel wall and / or the mesh skeleton is 0.07 mm to 0.21 mm.

[0024] In one embodiment, the cross-sectional area of ​​a single first airway is 1 / 10 to 1 / 50 of the total cross-sectional area of ​​the airways in the aerosol generating matrix segment.

[0025] In one embodiment, on a projection plane perpendicular to the extension direction of the heating channel, a plurality of plate-shaped channel walls enclose a circular, polygonal, elliptical, or racetrack-shaped projection area, wherein the projection area is a projection of the cross-section of the heating channel.

[0026] In one embodiment, the aperture of the heating channel is 0.5 mm to 3 mm; and / or,

[0027] The cross-sectional area of ​​the heating channel is 10 to 50 times that of a single first air channel.

[0028] This application also provides an aerosol generating article, comprising:

[0029] The aforementioned aerosol generation matrix segment;

[0030] A functional section is disposed at one end of the aerosol generating matrix along the extension direction of the heating channel, and the functional section includes at least a filtration section for filtering aerosols.

[0031] An outer wrapping layer that wraps around the outer periphery of the functional segment and the aerosol generating matrix.

[0032] In one embodiment, the functional section further includes at least one of a cooling section and a support section disposed between the aerosol generating matrix section and the filtration section.

[0033] In one embodiment, the aerosol generating article further includes a cleaning section, which is disposed at one end of the aerosol generating matrix away from the functional section.

[0034] This application provides an aerosol generation matrix segment and an aerosol generation product. The aerosol generation matrix segment, by incorporating a mesh framework, enhances its structural strength and effectively prevents deformation. Furthermore, since the micropores within the aerosol generation matrix segment shrink during suction, the first and second plate-shaped media walls, through mutual support, reduce the risk of excessive shrinkage due to suction. By utilizing multiple plate-shaped channel walls to create a heating channel with openings on its periphery, the heat generated by the heating element during operation can be quickly transferred outwards from the openings, minimizing heat accumulation within the heating channel and effectively preventing scorching of the aerosol generation matrix segment, thereby improving the user's suction experience. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application;

[0036] Figure 2 is an exploded view of the aerosol-generated product shown in Figure 1;

[0037] Figure 3 is a schematic diagram of the structure of the aerosol generation matrix segment shown in Figure 2;

[0038] Figure 4 is a structural schematic diagram of the aerosol generation matrix section shown in Figure 3 from another perspective. The area within the dashed box L in the figure is the hollow area.

[0039] Figure 5 is a schematic diagram of the structure of the second aerosol generation matrix segment according to an embodiment of this application;

[0040] Figure 6 is a schematic diagram of the structure of the third aerosol generation matrix segment according to an embodiment of this application;

[0041] Figure 7 is a schematic diagram showing the relationship between the aerosol-generating product and the aerosol-generating device shown in Figure 1.

[0042] Figure 8 is a cross-sectional view of the aerosol-generating product and aerosol-generating apparatus shown in Figure 7. Detailed Implementation

[0043] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by terms such as "extension direction" is based on the orientation or positional relationship shown in Figure 3. These orientation terms are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0044] This application provides an aerosol generation matrix segment 11. Please refer to Figures 3 to 6. The aerosol generation matrix segment 11 includes a mesh skeleton 111 and a plurality of plate-shaped channel walls 112.

[0045] The mesh frame 111 includes a plurality of spaced-apart first plate-shaped medium walls 1111 and a plurality of spaced-apart second plate-shaped medium walls 1112. The plurality of first plate-shaped medium walls 1111 and the plurality of second plate-shaped medium walls 1112 intersect to define a hollow area within the mesh frame 111 (i.e., the area within the dashed box L in Figure 4) and a plurality of first air passages 11c distributed on the outer periphery of the hollow area. The plurality of plate-shaped channel walls 112 are arranged circumferentially within the hollow area to enclose a heating channel 11a with an opening 11b on its periphery.

[0046] Specifically, please refer to Figures 7 and 8. After the aerosol generating matrix section 11 is heated and atomized by the heating element 21 installed in the aerosol generating device 20, it releases aerosols for users to inhale or for use in medicine, beauty, etc.

[0047] The specific structure of the aerosol generating matrix segment 11 is not limited here. Exemplarily, the aerosol generating matrix segment 11 can be made of the atomizing medium itself, such as a smoky flavoring medium. In other embodiments, the aerosol generating matrix segment 11 may also include a matrix and an atomizing medium disposed on the matrix. The matrix may be, for example, high-temperature resistant carbon fiber. In this way, by providing a matrix, the strength of the aerosol generating matrix segment 11 can be improved, and it can withstand a certain degree of high temperature without producing odor.

[0048] The specific composition of the aerosol generating matrix segment 11 is not limited here. For example, in one embodiment, the aerosol generating matrix segment 11 may include plant components, auxiliary components, smoke-generating components, adhesive components, etc.

[0049] In one embodiment, the plant-based ingredients are one or more combinations of raw tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants, which are powdered after being crushed. The plant-based ingredients are the core source of the product's aroma. Endogenous substances in the plant-based ingredients, such as nicotine, enter the bloodstream through atomization, promoting the pituitary gland to produce dopamine, thereby generating a sense of physiological satisfaction.

[0050] In one embodiment, the auxiliary component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic fillers provide support for the aerosol generation matrix segment 11 of the plant component, and also possess micropores, which can increase the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0051] Lubricants include one or more of the following: candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of particles, reduce friction between particles, result in a more uniform overall particle density, and also reduce the pressure required for mold forming, thus reducing mold wear.

[0052] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to some extent, slow down the loss of flavor substances during storage, increase the stability of flavor substances, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between water-soluble and water-insoluble components in a mixture, and form a more robust film on the surface of microdroplets or an electric double layer on the surface of microdroplets due to the charge given by the emulsifier, preventing microdroplets from agglomerating and maintaining a homogeneous emulsion. Homogenizing two immiscible components through emulsification can improve the consistency of product quality.

[0053] The function of the smoke-generating agent is to produce a large amount of vapor upon heating, thereby increasing the amount of smoke in the smoke-generating product. In one embodiment, the smoke-generating agent may include, for example, one or more combinations of: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, meso-erythritol, a mixture of diacetins, diethyl caprylate, triethyl citrate, methyl benzoate, phenylacetic acid methyl ester, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0054] In one embodiment, the adhesive component is a natural plant extract, a non-ionic modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive achieves close contact with the product component materials through wetting at the interface, generating intermolecular attraction, thereby binding the powder, liquid, or other components. Furthermore, the use of a natural plant extract and a non-ionic adhesive avoids the release of harmful substances such as methanol, formaldehyde, and acrolein associated with colloidal modification, thus improving the safety of the product.

[0055] In one embodiment, the aerosol generating matrix segment 11 may also contain a light-absorbing material, which is a material with a high absorption rate of laser light and can be better suited for laser heating.

[0056] For example, the aerosol generating matrix segment 11 can be a particle aggregate, which is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing smoke-generating agents, tobacco, and other components. The aerosol generating matrix segment 11 is a one-piece structure, for example, it can be a one-piece structure formed by injection molding, compression molding, or extrusion processes. 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, continuously passing through the die head to form products or semi-finished products of various cross-sections. The aerosol matrix formed by extrusion molding is in the form of strips.

[0057] Since the aerosol generating matrix section 11 is a particle aggregate, it remains an integral medium after being heated and drawn in or after the heating stops, and is not prone to disintegration and falling off. This solves the problems of thin sheet-like, filamentous, or loose particle aerosol generating matrix sections in the prior art, such as thin sheet loosening, filamentous components falling off, and particulate components falling off, and being difficult to clean.

[0058] The shape of the aerosol generating matrix segment 11 is not limited. For example, the aerosol generating matrix segment 11 can be columnar. The cross-sectional shape of the columnar aerosol generating matrix segment 11 can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, racetrack-shaped, irregular, etc., where irregular refers to other symmetrical or asymmetrical shapes other than those listed above.

[0059] Please refer to Figures 3 to 6. The mesh framework 111 is a mesh-like framework. The first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 are plate-shaped medium walls in the mesh framework 111. The first plate-shaped medium wall 1111 can be straight or curved, and similarly, the second plate-shaped medium wall 1112 can be straight or curved. The shapes of the first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 can be the same or different. The first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 intersect to form a mesh.

[0060] As shown in Figures 3 and 4, the first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 are perpendicular to each other. In other embodiments, the included angle between the first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 may also be greater than 0° and less than or equal to 90°.

[0061] The plurality of first plate-shaped medium walls 1111 can be arranged symmetrically or asymmetrically. Similarly, the plurality of second plate-shaped medium walls 1112 can be arranged symmetrically or asymmetrically.

[0062] The mesh skeleton 111 shown in Figures 3 and 4 is surrounded by annular medium walls 113 on its outer periphery. In some other embodiments, the annular medium walls 113 may not be provided on the outer periphery of the mesh skeleton 111. The wall thickness of the mesh skeleton 111 (i.e., the wall thickness of the first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112) can be designed as needed. However, if the wall thickness of the mesh skeleton 111 is small, the strength of the mesh skeleton 111 is low and the aerosol release is fast. If the wall thickness of the mesh skeleton 111 is large, the aerosol release is insufficient and the aerosol utilization rate is low. Therefore, preferably, the wall thickness of the mesh skeleton 111 can be 0.07 mm to 0.21 mm (including the endpoint values). For example, the wall thickness of the mesh skeleton 111 can be 0.07 mm, 0.1 mm, 0.15 mm, 0.2 mm, 0.21 mm, etc.

[0063] Please refer to Figure 4. The hollowed-out area (i.e., the area within the dashed box L in Figure 4) is the space formed by the hollowing out inside the mesh skeleton 111. The first air channel 11c is the space within each grid in the mesh skeleton 111. In other words, the space within one grid is one first air channel 11c. The first air channel 11c is used to collect the aerosols released by the aerosol generation matrix section 11 when heated, and to make the aerosols flow along the first air channel 11c.

[0064] The cross-sectional area of ​​a single first airway 11c can be designed as needed. However, to ensure that the aerosol generating matrix section 11 can release aerosols sufficiently and that the aerosols can be stably transported through the first airway 11c, preferably, the cross-sectional area of ​​a single first airway 11c can be 1 / 50 to 1 / 10 (including endpoint values) of the total cross-sectional area of ​​the airways in the aerosol generating matrix section 11. For example, the cross-sectional area of ​​a single first airway 11c can be 1 / 50, 1 / 40, 1 / 20, 1 / 10, etc., of the total cross-sectional area of ​​the airways in the aerosol generating matrix section 11. The total cross-sectional area of ​​the airways refers to the sum of the cross-sectional areas of all airways (excluding the heating channel 11a) on the aerosol generating matrix section 11, including the first airway 11c.

[0065] Please refer to Figures 3 to 6. The plate-shaped channel wall 112 is also a plate-shaped medium wall. The plate-shaped channel wall 112 can be a straight plate or a curved plate.

[0066] The wall thickness of the plate-shaped channel wall 112 can be designed as needed. However, if the wall thickness of the plate-shaped channel wall 112 is small, the strength of the plate-shaped channel wall 112 is low and the aerosol release is fast. If the wall thickness of the plate-shaped channel wall 112 is large, the aerosol release is insufficient and the utilization rate of aerosol is low. Therefore, preferably, the wall thickness of the plate-shaped channel wall 112 can be 0.07mm to 0.21mm (including the endpoint value). For example, the wall thickness of the plate-shaped channel wall 112 can be 0.07mm, 0.1mm, 0.15mm, 0.2mm, 0.21mm, etc.

[0067] Heating channel 11a is a channel through which the heating element 21 in the aerosol generating device 20 is inserted into the aerosol generating matrix section 11. In other words, the heating element 21 is inserted into heating channel 11a to bake and heat the aerosol generating matrix section 11 from the inside out. This heating method is generally called center heating. Specific methods of center heating can include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., and are not specifically limited here.

[0068] Please refer to Figures 3 through 6. The heating channel 11a is actually part of the hollowed-out area. In other words, the heating channel 11a and the multiple plate-shaped channel walls 112 are all located within the hollowed-out area. All plate-shaped channel walls 112, all first plate-shaped medium walls 1111, all second plate-shaped medium walls 1112, and all first air passages 11c are located on the outer periphery of the heating channel 11a. The heating channel 11a has an opening 11b on its periphery. That is, the heating channel 11a enclosed by the multiple plate-shaped channel walls 112 does not have a continuous inner wall surface along the circumference. In other words, the cross-sectional profile of the heating channel 11a (i.e., the section perpendicular to the extension direction of the heating channel 11a) is not a closed ring, but a discontinuous structure.

[0069] Referring to Figure 8, the heating element 21 may contact at least a portion of the multiple plate-shaped channel walls 112, or it may not contact any of the plate-shaped channel walls 112, which is equivalent to forming a gap between the heating element 21 and all the plate-shaped channel walls 112. The shape of the cross-section of the heating channel 11a can be designed as needed, as long as the heating element 21 can be inserted into the heating channel 11a. For example, on the projection plane perpendicular to the extension direction of the heating channel 11a, the cross-sectional outline shape (the cross-sectional outline shape refers to the line connecting the ends of each plate-shaped channel wall 112 near the center of the aerosol generating matrix segment 11) enclosed by the multiple plate-shaped channel walls 112 is a circular (see Figure 4), polygonal (including but not limited to triangles, squares, rhombuses, etc.), elliptical, or racetrack-shaped projection area, which is the projection of the cross-section of the heating channel 11a. That is to say, the multiple plate-shaped channel walls 112 can roughly enclose a space with a cross-sectional shape of a circle, polygon, ellipse, or racetrack, and this space is the heating channel 11a.

[0070] The aperture of the heating channel 11a can be designed as needed. For example, the aperture of the heating channel 11a can be 0.5mm to 3mm (including the endpoint value). For instance, the aperture of the heating channel 11a can be 0.5mm, 1mm, 1.5mm, 2mm, 3mm, etc.

[0071] It should be noted that the aperture refers to the dimension used to calculate the cross-sectional area of ​​the heating channel 11a. When the cross-sectional shape of the heating channel 11a is circular, the aperture refers to the diameter of the cross-section. When the cross-sectional shape of the heating channel 11a is non-circular, there are generally multiple dimensions for calculating the cross-sectional area, and the aperture refers to the largest of these dimensions.

[0072] The relationship between the cross-sectional area of ​​a single first airway 11c and the cross-sectional area of ​​the heating channel 11a can be designed as needed. However, in order to ensure that the aerosol generation matrix section 11 can release aerosols more fully and that the aerosols can be transported more stably through the first airway 11c, preferably, the cross-sectional area of ​​the heating channel 11a can be 10 to 50 times (including the endpoint value) the cross-sectional area of ​​a single first airway 11c. For example, the cross-sectional area of ​​the heating channel 11a can be 10, 15, 20, 30, or 50 times the cross-sectional area of ​​a single first airway 11c.

[0073] This application also provides an aerosol generating article 10, as shown in Figures 1 and 2. The aerosol generating article 10 includes a functional segment 12, an outer coating layer 13, and an aerosol generating matrix segment 11 as provided in any embodiment of this application. The functional segment 12 is disposed at one end of the aerosol generating matrix along the extending direction of the heating channel 11a, and the functional segment 12 includes at least a filter segment 121 for filtering aerosols. The outer coating layer 13 wraps around the functional segment 12 and the outer periphery of the aerosol generating matrix.

[0074] The filter section 121 is designed to come into contact with the user's mouth during inhalation to filter aerosols.

[0075] The materials of filter section 121 include, but are not limited to, one or more combinations of PE (polyethylene), PLA (polylactic acid), PBAT (butylene adipate-co-terephthalate), PP (polypropylene), cellulose acetate, and propylene fiber.

[0076] It should be noted that the aerosol generating product 10 generates aerosols by means of the aerosol generating matrix section 11, while the functional section 12 does not generate aerosols.

[0077] The functional segment 12 shown in Figure 2 is also provided with a cooling segment 122 and a support segment 123, which are located between the aerosol generation matrix segment 11 and the filtration segment 121.

[0078] The cooling section 122 is used to cool the aerosol before the filtration section 121 filters it, so as to reduce the temperature of the aerosol and improve the "burning mouth" phenomenon when the user inhales the aerosol.

[0079] The materials for the cooling section 122 include, but are not limited to, one or more combinations of PE, PLA, PBAT, PP, cellulose acetate, and propylene fiber.

[0080] The cooling section 122 and the filter section 121 can be made of the same material or different materials.

[0081] The support section 123 is mainly used to provide support for the functional section 12 in order to improve the structural strength of the functional section 12, especially the structural strength at high temperatures.

[0082] For example, the support segment 123 can have good structural strength at a high temperature of at least 200°C.

[0083] In some scenarios, support section 123 can also provide a certain amount of suction resistance.

[0084] The materials of the support section 123 include, but are not limited to, cellulose acetate, PET (polyethylene terephthalate), plant fibers, and non-plant fibers.

[0085] The support section 123 can be set between the cooling section 122 and the aerosol generation matrix section 11, or it can be set between the cooling section 122 and the filtration section 121.

[0086] In other embodiments, functional segment 12 may only have cooling segment 122 without supporting segment 123, or only supporting segment 123 without cooling segment 122, or neither cooling segment 122 nor supporting segment 123 may be provided.

[0087] The material of the outer wrapping layer 13 is not limited, for example, including but not limited to one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT, etc.

[0088] The outer wrapping layer 13 may have multiple layers. For example, referring to Figures 1 and 2, the outer wrapping layer 13 may include a first wrapping layer 131, a second wrapping layer 132, and a third wrapping layer 133. The first wrapping layer 131 wraps the aerosol generating matrix section 11, the second wrapping layer 132 wraps the aerosol generating matrix section 11, the cooling section 122, and the support section 123, and the third wrapping layer 133 wraps the filtration section 121 and a portion of the cooling section 122.

[0089] In other embodiments, the outer wrapping layer 13 may also be a single layer.

[0090] Please refer to Figures 2 and 8. In some embodiments, the aerosol generating article 10 may also be provided with a cleaning section 14. The cleaning section 14 is provided at one end of the aerosol generating matrix away from the functional section 12, so as to prevent the aerosol generating matrix section 11 from shrinking and falling off after heating and to adsorb the backflowing aerosol.

[0091] It should be noted that the aerosol generating matrix segment 11 in this application embodiment is not limited to use in the aerosol generating article 10 configured with the functional segment 12. In some embodiments, the aerosol generating article 10 may not have the functional segment 12 (the end of the aerosol generating matrix segment 11 away from the functional segment 12 may also not have a cleaning segment 14 or other structures). For example, the aerosol generating device 20 may be provided with a suction nozzle, which can be reused or used once. The suction nozzle is used in conjunction with the aerosol generating article 10 without the functional segment 12 to replace the functional segment 12.

[0092] The aerosol generating matrix segment 11 in this embodiment of the application improves its structural strength by providing a mesh framework 111, effectively preventing deformation. Simultaneously, since the micropores within the aerosol generating matrix segment 11 shrink during suction, the first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 mutually support each other, reducing the risk of excessive shrinkage due to suction. Furthermore, by using multiple plate-shaped channel walls 112 to enclose a heating channel 11a with openings 11b on its periphery, the heat generated by the heating element 21 during operation can be quickly transferred outwards from the openings 11b, minimizing heat accumulation within the heating channel 11a for extended periods. This effectively prevents scorching of the aerosol generating matrix segment 11, thereby improving the user's suction experience.

[0093] Furthermore, in the heating scheme where the heating element 21 contacts at least a portion of the plate-shaped channel walls 112, in related technologies, the heating element directly contacts the annular inner wall of the heating channel, resulting in a large contact area between the heating element and the aerosol generation matrix section, making the aerosol generation matrix section more prone to scorching. However, since this application utilizes multiple plate-shaped channel walls 112 to enclose a heating channel 11a with openings 11b on its periphery, the contact area between the heating element 21 and at least a portion of the plate-shaped channel walls 112 can be reduced, making the aerosol generation matrix section 11 less prone to scorching. Simultaneously, the heat generated by the heating element 21 during operation can be transferred through heat convection at the openings 11b or through heat conduction in contact with the plate-shaped channel walls 112, resulting in a higher heat transfer rate. This improves the aerosol extraction efficiency and, consequently, enhances the suction experience.

[0094] In one embodiment, referring to Figures 3 to 6, the plurality of plate-shaped channel walls 112 may include independent channel walls 112a. Independent channel walls 112a are one type of plate-shaped channel walls 112, that is, in addition to independent channel walls 112a, the plate-shaped channel walls 112 may also have other channel walls. The naming of independent channel walls 112a is only for the convenience of distinguishing them from other channel walls.

[0095] Please continue to refer to Figures 3 to 6. The independent channel wall 112a is connected to the mesh skeleton 111 and extends in a direction away from the mesh skeleton 111. That is to say, the independent channel wall 112a is set on the mesh skeleton 111 alone, without being connected to or intersecting with other channel walls.

[0096] It should be noted that the multiple plate-shaped channel walls 112 can all be independent channel walls 112a, or they can be a combination of independent channel walls 112a and other channel walls. When an independent channel wall 112a is combined with other channel walls, the number of independent channel walls 112a can be one or more.

[0097] For example, please refer to Figures 3 to 6. When there are multiple independent channel walls 112a, at least some of the independent channel walls 112a can be arranged adjacently and at intervals so that an opening 11b is formed between two adjacent independent channel walls 112a.

[0098] In other words, a second air passage 11d can be formed between the mesh skeleton 111 and the two adjacent independent channel walls 112a, which is connected to the corresponding opening 11b. The heat generated by the heating element 21 during operation can enter the second air passage 11d from the corresponding opening 11b to achieve heat transfer through thermal convection, thereby also preventing the aerosol generation matrix section 11 from scorching.

[0099] In one embodiment, referring to Figures 3 to 6, the plurality of plate-shaped channel walls 112 may include a first connecting wall 112b and a second connecting wall 112c, wherein the first connecting wall 112b and the second connecting wall 112c intersect.

[0100] Specifically, both the first connecting wall 112b and the second connecting wall 112c are plate-shaped channel walls 112, and the first connecting wall 112b and the second connecting wall 112c are the channel walls among the plate-shaped channel walls 112 that intersect. The naming of the first connecting wall 112b and the second connecting wall 112c is only for easy distinction from other channel walls. That is to say, among the multiple plate-shaped channel walls 112 that enclose the heating channel 11a, at least some of the plate-shaped channel walls 112 can intersect to improve the structural strength of the aerosol generation matrix section 11.

[0101] In one embodiment, referring to Figures 3 to 5, the first connecting wall 112b and the second connecting wall 112c can intersect to form a corner 112d, which is used to enclose the heating channel 11a. That is, the heat generated by the heating element 21 during operation can be transferred through the corner 112d.

[0102] The corner 112d can be a rounded corner as shown in Figures 3 and 4, that is, the first connecting wall 112b and the second connecting wall 112c transition through an arc surface at the junction. The corner 112d can be a sharp corner as shown in Figure 5, that is, the first connecting wall 112b and the second connecting wall 112c form a boundary line at the junction.

[0103] For sharp corners and rounded corners, after the heating element 21 is inserted into the heating channel 11a, if it comes into contact with the corner 112d, the heating element 21 is essentially in line contact with the corner 112d. This can effectively prevent the heating element 21 from making excessive contact with the corner 112d and causing scorching.

[0104] Please refer to Figures 3 to 5. The first connecting wall 112b can be adjacent to and spaced apart from an independent channel wall 112a, so that an opening 11b is formed between the first connecting wall 112b and the adjacent independent channel wall 112a. That is, the mesh skeleton 111, the first connecting wall 112b and the independent channel wall 112a adjacent to the first connecting wall 112b form a third air passage 11e that communicates with the corresponding opening 11b. The heat generated by the heating element 21 during operation can enter the third air passage 11e from the corresponding opening 11b. In other words, the heating element 21 and the third air passage 11e can transfer heat through thermal convection, which can better prevent the aerosol generation matrix section 11 from scorching.

[0105] Similarly, referring to Figures 3 to 5, the second connecting wall 112c can also be arranged adjacent to and spaced apart from an independent channel wall 112a, so that an opening 11b is formed between the second connecting wall 112c and the adjacent independent channel wall 112a. That is, a fourth air passage 11f communicating with the corresponding opening 11b can also be formed between the mesh skeleton 111, the second connecting wall 112c and the independent channel wall 112a adjacent to the second connecting wall 112c. The heat generated by the heating element 21 during operation can enter the fourth air passage 11f from the corresponding opening 11b to achieve heat transfer through thermal convection, thereby better preventing the aerosol generation matrix section 11 from scorching.

[0106] As shown in Figures 3 to 5, the aerosol generation matrix section 11 is provided with independent channel walls 112a that are adjacent to and spaced apart from the first connecting wall 112b, and also with independent channel walls 112a that are adjacent to and spaced apart from the second connecting wall 112c. In some other embodiments, only independent channel walls 112a that are adjacent to and spaced apart from the first connecting wall 112b may be provided, without the independent channel walls 112a that are adjacent to and spaced apart from the second connecting wall 112c. Alternatively, only independent channel walls 112a that are adjacent to and spaced apart from the second connecting wall 112c may be provided, without the independent channel walls 112a that are adjacent to and spaced apart from the first connecting wall 112b.

[0107] In another embodiment, referring to FIG6, the first connecting wall 112b and the second connecting wall 112c can intersect, such that a portion of the first connecting wall 112b forms a first protrusion 112b1 protruding from the second connecting wall 112c, and a portion of the second connecting wall 112c forms a second protrusion 112c1 protruding from the first connecting wall 112b. The first protrusion 112b1 and the second protrusion 112c1 are used to enclose the heating channel 11a.

[0108] Specifically, please refer to Figure 6. Since the first protrusion 112b1 protrudes from the second connecting wall 112c and the second protrusion 112c1 protrudes from the first connecting wall 112b, when the heating element 21 is inserted into the heating channel 11a, an air passage gap can be formed between the first protrusion 112b1, the second protrusion 112c1 and the heating element 21. The heat generated by the heating element 21 during operation can enter the air passage gap to achieve heat transfer through thermal convection. Thus, it can also better prevent the aerosol generation matrix section 11 from scorching.

[0109] Further, referring to Figure 6, an independent channel wall 112a spaced apart from the first protrusion 112b1 can be provided on the side of the first protrusion 112b1 away from the second connecting wall 112c. An opening 11b is formed between the first protrusion 112b1 and the spaced independent channel wall 112a. That is, a fifth air passage 11g communicating with the corresponding opening 11b can also be formed between the mesh skeleton 111, the second connecting wall 112c, the first protrusion 112b1 and the independent channel wall 112a spaced apart from the first protrusion 112b1. The heat generated by the heating element 21 during operation can enter the fifth air passage 11g from the corresponding opening 11b to achieve heat transfer through thermal convection, thereby better preventing the aerosol generation matrix section 11 from scorching.

[0110] Similarly, referring to Figure 6, an independent channel wall 112a spaced apart from the second protrusion 112c1 can also be provided on the side of the second protrusion 112c1 away from the first connecting wall 112b. An opening 11b is formed between the second protrusion 112c1 and the spaced independent channel wall 112a. That is, a sixth air passage 11h communicating with the corresponding opening 11b can also be formed between the mesh skeleton 111, the first connecting wall 112b, the second protrusion 112c1 and the independent channel wall 112a spaced apart from the second protrusion 112c1. The heat generated by the heating element 21 during operation can enter the sixth air passage 11h from the corresponding opening 11b to achieve heat transfer through thermal convection, thereby better preventing the aerosol generation matrix section 11 from scorching.

[0111] As shown in Figure 6, the aerosol generation matrix section 11 is provided with independent channel walls 112a spaced apart from the first protrusion 112b1 and also with independent channel walls 112a spaced apart from the second protrusion 112c1. In some other embodiments, only the independent channel walls 112a spaced apart from the first protrusion 112b1 may be provided, without the independent channel walls 112a spaced apart from the second protrusion 112c1. Alternatively, only the independent channel walls 112a spaced apart from the second protrusion 112c1 may be provided, without the independent channel walls 112a spaced apart from the first protrusion 112b1.

[0112] Referring to Figures 3 to 6, the aerosol generating matrix section 11 can be provided with multiple connecting wall groups. Each connecting wall group has an intersecting first connecting wall 112b and a second connecting wall 112c. That is, the first connecting wall 112b and the second connecting wall 112c in each connecting wall group intersect, while the first connecting wall 112b and the second connecting wall 112c of different connecting wall groups do not intersect. Referring further to Figures 3 to 6, the multiple connecting wall groups can be arranged at circumferential intervals along the hollowed-out area. That is, the space between two adjacent connecting wall groups can be used to form an opening 11b.

[0113] Please refer to Figures 3 to 6. Multiple connecting wall groups can be arranged diagonally in pairs, that is, one connecting wall group is arranged diagonally with another connecting wall group. This arrangement allows the connecting wall groups to be distributed more evenly around the perimeter of the heating channel 11a, so that the heat generated by the heating element 21 during operation can be evenly transferred through each connecting wall group.

[0114] Referring to Figures 3 to 6, at least two independent channel walls 112a can be provided between two adjacent connecting wall groups, and an opening 11b is formed between two adjacent independent channel walls 112a. That is, an opening 11b can be formed between the connecting wall group and the independent channel wall 112a closest to the connecting wall group, as well as between two adjacent independent channel walls 112a. The heat generated by the heating element 21 during operation can be transferred outward from multiple openings 11b, thereby better preventing the aerosol generation matrix section 11 from scorching.

[0115] In other embodiments, at least two independent channel walls 112a may be provided only between two partially adjacent connecting wall groups, or the aerosol generating matrix segment 11 may be provided only with multiple connecting wall groups without providing independent channel walls 112a.

[0116] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions 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. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An aerosol generation matrix segment, comprising: A mesh skeleton, the mesh skeleton including a plurality of spaced first plate-shaped medium walls and a plurality of spaced second plate-shaped medium walls, the plurality of first plate-shaped medium walls intersecting with the plurality of second plate-shaped medium walls to define a hollow area located within the mesh skeleton and a plurality of first air passages distributed on the outer periphery of the hollow area; Multiple plate-shaped channel walls are arranged circumferentially within the hollowed-out area to enclose a heating channel with openings on its periphery.

2. The aerosol generation matrix segment according to claim 1, wherein the plurality of plate-shaped channel walls include independent channel walls, the independent channel walls being connected to the mesh framework and extending in a direction away from the mesh framework; wherein, The number of independent channel walls is multiple, and at least some of the independent channel walls are arranged adjacently and at intervals, so that the opening is formed between two adjacent independent channel walls.

3. The aerosol generation matrix segment according to claim 1, wherein the plurality of plate-shaped channel walls include a first connecting wall and a second connecting wall, wherein the first connecting wall and the second connecting wall intersect.

4. In the aerosol generating matrix section according to claim 3, the first connecting wall and the second connecting wall intersect to form a corner, and the corner is used to enclose the heating channel.

5. The aerosol generation matrix segment according to claim 4, wherein the plurality of plate-shaped channel walls include independent channel walls, the independent channel walls being connected to the mesh skeleton and extending in a direction away from the mesh skeleton; The first connecting wall is adjacent to and spaced apart from one of the independent channel walls, such that the opening is formed between the first connecting wall and the adjacent independent channel wall; and / or, The second connecting wall is adjacent to and spaced apart from one of the independent channel walls, so that the opening is formed between the second connecting wall and the adjacent independent channel wall.

6. The aerosol generating matrix section according to claim 3, wherein the first connecting wall and the second connecting wall intersect, such that a portion of the first connecting wall forms a first protrusion protruding from the second connecting wall, and a portion of the second connecting wall forms a second protrusion protruding from the first connecting wall, the first protrusion and the second protrusion being used to enclose the heating channel.

7. The aerosol generation matrix segment according to claim 6, wherein the plurality of plate-shaped channel walls include independent channel walls, the independent channel walls being connected to the mesh skeleton and extending in a direction away from the mesh skeleton; The first protrusion has an independent channel wall spaced apart from the second connecting wall on its side, and the opening is formed between the first protrusion and the spaced independent channel wall; and / or, The second protrusion has an independent channel wall spaced apart from the first connecting wall on the side opposite to the second protrusion, and the opening is formed between the second protrusion and the spaced independent channel wall.

8. The aerosol generation matrix segment according to claim 3, wherein the aerosol generation matrix segment has a plurality of connecting wall groups arranged circumferentially along the hollow area, and each of the connecting wall groups has an intersecting first connecting wall and a second connecting wall; Multiple connecting wall assemblies are arranged diagonally in pairs; and / or, At least two independent channel walls are provided between two adjacent connecting wall groups, and the opening is formed between two adjacent independent channel walls.

9. The aerosol generation matrix segment according to any one of claims 1-3, wherein the wall thickness of the plate-like channel wall and / or the mesh skeleton is 0.07 mm to 0.21 mm; and / or, The cross-sectional area of ​​a single first airway is 1 / 10 to 1 / 50 of the total cross-sectional area of ​​the airways in the aerosol generation matrix segment.

10. The aerosol generation matrix section according to any one of claims 1-3, wherein on a projection plane perpendicular to the extension direction of the heating channel, a plurality of plate-shaped channel walls enclose a circular, polygonal, elliptical, or racetrack-shaped projection area, wherein the projection area is a projection of the cross-section of the heating channel.

11. The aerosol generation matrix section according to claim 10, wherein the pore size of the heating channel is 0.5 mm to 3 mm; and / or, The cross-sectional area of ​​the heating channel is 10 to 50 times that of a single first air channel.

12. An aerosol-generating article, comprising: The aerosol generation matrix segment according to any one of claims 1-11; A functional section is disposed at one end of the aerosol generating matrix along the extension direction of the heating channel, and the functional section includes at least a filtration section for filtering aerosols. An outer wrapping layer that wraps around the outer periphery of the functional segment and the aerosol generating matrix.

13. The aerosol generating article according to claim 12, wherein the functional section further comprises at least one of a cooling section and a support section disposed between the aerosol generating matrix section and the filtration section.

14. The aerosol generating article according to claim 12 or 13, wherein the aerosol generating article further comprises a cleaning section disposed at one end of the aerosol generating matrix away from the functional section.

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