Aerosol-generating substrate segment and aerosol-generating article

Abstract

The embodiment of the invention provides an aerosol generating substrate section and an aerosol generating product, and the aerosol generating substrate section comprises a net-shaped framework and a plurality of plate-shaped channel walls; the reticular framework comprises a plurality of first plate-shaped dielectric walls arranged at intervals and a plurality of second plate-shaped dielectric walls arranged at intervals, and the plurality of first plate-shaped dielectric walls intersect with the plurality of second plate-shaped dielectric walls; the hollow-out area is located in the net-shaped framework, and the first air channels are distributed on the peripheral side of the hollow-out area. The multiple plate-shaped channel walls are arranged in the hollowed-out area in the circumferential direction of the hollowed-out area so as to define a heating channel with an opening in the circumferential side. According to the aerosol generating matrix section, the structural strength and the smoking experience feeling can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smoking, in particular to an aerosol generating substrate segment and an aerosol generating article. BACKGROUND

[0002] Generally, an aerosol generating article generates aerosol by heating without combustion. Specifically, an aerosol generating substrate segment is arranged in the aerosol generating article, and the aerosol generating article is heated by a heating element in an aerosol generating device, so that the aerosol generating substrate segment is just heated to a degree sufficient to release fragrance, but the aerosol generating substrate segment does not burn.

[0003] In the related art, one heating method is to insert a heating element into the inside of an aerosol generating substrate segment to bake and heat the aerosol generating substrate segment from the inside to the outside. However, the aerosol generating article using this heating method has the problems of easy deformation and charring during the heating process, which affects the smoking experience of the user. SUMMARY

[0004] Therefore, the embodiments of the present application aim to provide an aerosol generating substrate segment and an aerosol generating article capable of improving structural strength and smoking experience.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide an aerosol generating substrate segment, comprising:

[0006] A net-shaped framework, the net-shaped framework comprising a plurality of first plate-shaped medium walls arranged at intervals and a plurality of second plate-shaped medium walls arranged at intervals, the plurality of first plate-shaped medium walls intersecting with the plurality of second plate-shaped medium walls to define a hollow region located in the net-shaped framework and a plurality of first air passages distributed on the peripheral side of the hollow region;

[0007] A plurality of plate-shaped passage walls, the plurality of plate-shaped passage walls being arranged in the hollow region along the circumference of the hollow region to surround a heating passage having an opening on the peripheral side.

[0008] In one embodiment, the plurality of plate-shaped passage walls comprises independent passage walls, the independent passage walls being connected with the net-shaped framework and extending away from the net-shaped framework; wherein the number of the independent passage walls is a plurality, and at least part of the independent passage walls are adjacent and arranged at intervals to form the opening between the two adjacent independent passage walls.

[0009] In one embodiment, the plurality of plate-shaped passage walls comprises first connecting walls and second connecting walls, the first connecting walls intersecting with the second connecting walls.

[0010] In one embodiment, the first connecting wall and the second connecting wall intersect to form a corner, and the corner is used to surround the heating passage.

[0011] In one embodiment, the plurality of plate-shaped passage walls comprises an independent passage wall connected to the mesh framework and extending away from the mesh framework.

[0012] The first connecting wall is adjacent to and spaced apart from one of the independent passage walls, so that the opening is formed between the first connecting wall and the adjacent independent passage wall; and / or,

[0013] The second connecting wall is adjacent to and spaced apart from one of the independent passage walls, so that the opening is formed between the second connecting wall and the adjacent independent passage wall.

[0014] In one embodiment, the first connecting wall and the second connecting wall intersect, so that a part of the first connecting wall forms a first protruding portion protruding from the second connecting wall, and a part of the second connecting wall forms a second protruding portion protruding from the first connecting wall, and the first protruding portion and the second protruding portion are used to surround the heating passage.

[0015] In one embodiment, the plurality of plate-shaped passage walls comprises an independent passage wall connected to the mesh framework and extending away from the mesh framework.

[0016] The side of the first protruding portion away from the second connecting wall is provided with the independent passage wall spaced apart from the first protruding portion, and the opening is formed between the first protruding portion and the spaced-apart independent passage wall; and / or,

[0017] The side of the second protruding portion away from the first connecting wall is provided with the independent passage wall spaced apart from the second protruding portion, and the opening is formed between the second protruding portion and the spaced-apart independent passage wall.

[0018] In one embodiment, the aerosol generating substrate section has a plurality of connecting wall groups spaced apart along the circumference of the hollowed-out area, and each of the connecting wall groups has the first connecting wall and the second connecting wall intersecting.

[0019] The plurality of connecting wall groups are diagonally arranged two by two; and / or,

[0020] At least two independent passage walls are arranged between two adjacent connecting wall groups, and the opening is formed between two adjacent independent passage walls.

[0021] In one embodiment, the plate-shaped passage wall and / or the wall thickness of the mesh framework is 0.07mm-0.21mm.

[0022] In an embodiment, a cross-sectional area of the single first air passage is 1 / 10-1 / 50 of a total cross-sectional area of the aerosol generating substrate section.

[0023] In an embodiment, in a projection plane perpendicular to an extension direction of the heating channel, the plurality of plate-shaped channel walls enclose a projection area in a shape of a circle, a polygon, an ellipse, or a racetrack, the projection area being a projection of a cross-section of the heating channel.

[0024] In an embodiment, an aperture of the heating channel is 0.5 mm-3 mm; and / or,

[0025] A cross-sectional area of the heating channel is 10-50 times of a cross-sectional area of the single first air passage.

[0026] The application also provides an aerosol generating article, comprising:

[0027] The aerosol generating substrate section as described above;

[0028] A functional section, the functional section being arranged at one end of the aerosol generating substrate along the extension direction of the heating channel, the functional section at least comprising a filter section for filtering aerosol;

[0029] An outer wrapping layer, the outer wrapping layer wrapping the functional section and an outer peripheral side of the aerosol generating substrate.

[0030] In an embodiment, the functional section further comprises at least one of a cooling section and a support section arranged between the aerosol generating substrate section and the filter section.

[0031] In an embodiment, the aerosol generating article further comprises a cleaning section, the cleaning section being arranged at an end of the aerosol generating substrate away from the functional section.

[0032] The aerosol generating substrate section and the aerosol generating article provided by the application can improve the structural strength of the aerosol generating substrate section by arranging the mesh-like framework, and can better prevent the aerosol generating substrate section from deforming. Meanwhile, since the micropores of the aerosol generating substrate section will shrink to a certain extent during the puffing process, the first plate-shaped medium wall and the second plate-shaped medium wall can also reduce the risk of excessive shrinkage of the aerosol generating substrate section caused by the puffing. By arranging the heating channel with the opening on the peripheral side by the plurality of plate-shaped channel walls, the heat generated by the heating element during the working process can be transmitted outward from the opening at a faster rate, so as to avoid the heat from gathering in the heating channel for a long time, thereby better preventing the aerosol generating substrate section from burning, and further improving the puffing experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure;

[0034] Figure 2 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure; Figure 1

[0035] Figure 3 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure; Figure 2

[0036] Figure 4 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure; Figure 3

[0037] Figure 5 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure;

[0038] Figure 6 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure;

[0039] Figure 7 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure; Figure 1

[0040] Figure 8 A structural schematic view of an aerosol generating article according to an embodiment of the present disclosure; Figure 7

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 10, aerosol generating article; 11, aerosol generating substrate segment; 11a, heating passage; 11b, opening; 11c, first air passage; 11d, second air passage; 11e, third air passage; 11f, fourth air passage; 11g, fifth air passage; 11h, sixth air passage; 111, mesh-like framework; 1111, first plate-like medium wall; 1112, second plate-like medium wall; 112, plate-like passage wall; 112a, independent passage wall; 112b, first connecting wall; 112b1, first protruding portion; 112c, second connecting wall; 112c1, second protruding portion; 112d, corner; 113, ring-like medium wall; 12, functional segment; 121, filtration segment; 122, temperature reduction segment; 123, support segment; 13, outer wrapper; 131, first wrapper; 132, second wrapper; 133, third wrapper; 14, cleaning segment; 20, aerosol generating device; 21, heating element. DETAILED DESCRIPTION ​​​​​

[0043] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms such as "extension direction" is based on the orientation or positional relationship shown in the drawings, and these orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application. Figure 3 The orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the embodiments of the present application.

[0044] The embodiments of the present application provide an aerosol generating substrate section 11, please refer to Figures 3 to 6 , the aerosol generating substrate section 11 includes a reticular framework 111 and a plurality of plate-shaped channel walls 112.

[0045] The reticular framework 111 includes a plurality of first plate-shaped medium walls 1111 arranged at intervals and a plurality of second plate-shaped medium walls 1112 arranged at intervals, and the plurality of first plate-shaped medium walls 1111 intersect with the plurality of second plate-shaped medium walls 1112 to define a hollow region (i.e. Figure 4 The region in the dashed-dotted box L) located in the reticular framework 111 and a plurality of first air passages 11c distributed on the peripheral side of the hollow region. The plurality of plate-shaped channel walls 112 are arranged in the hollow region along the circumference of the hollow region to surround the heating passage 11a having an opening 11b on the peripheral side.

[0046] Specifically, please refer to Figure 7 and Figure 8 , the aerosol generating substrate section 11 releases an aerosol for users to smoke or for medical, cosmetic, etc. after being heated and atomized by the heating element 21 arranged in the aerosol generating device 20.

[0047] The specific structure of the aerosol generating substrate section 11 is not limited here, and exemplarily, the aerosol generating substrate section 11 can be made of the atomization medium itself, for example, made of a smoking flavor medium. In other embodiments, the aerosol generating substrate section 11 can also include a substrate and an atomization medium arranged on the substrate, and the substrate can be, for example, a high-temperature-resistant carbon fiber. In this way, by arranging the substrate, the strength of the aerosol generating substrate section 11 can be improved, and a certain degree of high temperature can be withstood without producing an odor.

[0048] The specific composition of the aerosol generating substrate section 11 is not limited here, and exemplarily, in an embodiment, the aerosol generating substrate section 11 can include plant ingredients, auxiliary ingredient, smoking agent ingredients, adhesive ingredients, etc.

[0049] In an embodiment, the plant component is one or more combinations of powders formed from crushed tobacco leaves, tobacco stems, tobacco dust, flavor plants, etc. The plant component is the core source of the product flavor, and endogenous substances in the plant component, such as nicotine, enter the human bloodstream through atomization, promote the pituitary gland to produce dopamine, and thus obtain a physiological sense of satisfaction.

[0050] In an 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 diatomite. The inorganic fillers can provide support for the aerosol generating substrate segment 11 of the plant component, and the inorganic fillers also have micropores that can increase the porosity of the wall material after the plant component is formed, thereby increasing the aerosol release rate.

[0051] The lubricants include one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricants can increase the flowability of the particles, reduce the friction between the particles, make the overall density of the particle distribution more uniform, and reduce the pressure required for mold forming and the wear of the mold.

[0052] The emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. The emulsifiers can slow down the loss of flavor substances during storage to some extent, increase the stability of the flavor substances, and improve the sensory quality of the product. The emulsifiers (also known as surfactants) can reduce the interfacial tension between water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or a double electric layer on the surface of the droplets due to the charges given by the emulsifiers, thereby preventing the droplets from aggregating with each other and maintaining a uniform emulsion. The homogenization of two immiscible components can improve the consistency of the product quality.

[0053] The function of the smoking agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking product. In an embodiment, the smoking agent can include one or more combinations of monohydric alcohols (such as menthol), polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol), esters of polyhydric alcohols (such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate), monocarboxylic acids, polycarboxylic acids (such as lauric acid and myristic acid), or fatty esters of polycarboxylic acids (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso-erythritol, glycerol diacetate, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanillate, glycerol tributyrate, and lauryl acetate).

[0054] In an embodiment, the adhesive component is a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan, fucoidan, locust bean gum, guar gum, xyloglucan. The adhesive is in close contact by wetting the interface with the component materials of the product, generating intermolecular attraction, thereby playing a role in bonding the powders, liquids, etc. of the component materials. At the same time, the use of natural plant extracts, non-ionized adhesives can avoid the release of harmful substances such as methanol, formaldehyde, propylene aldehyde, etc. caused by colloid modification, and improve the safety of the product.

[0055] In an embodiment, the aerosol generating substrate segment 11 can also have a light absorbing material, which is a material with high absorption of laser light, and can be better adapted to laser heating.

[0056] Exemplarily, the aerosol generating substrate segment 11 can be a granular combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke generating agents and tobacco. The aerosol generating substrate segment 11 is a one-piece structure, for example, a one-piece structure formed by injection molding, compression molding or extrusion process. Extrusion molding refers to a processing method in which the raw material mixture is added to the extruder, the material is pushed forward by the screw through the action between the extruder barrel and the screw, and various cross-section products or semi-products are continuously formed through the head. The aerosol substrate formed by extrusion molding is in the form of a strip.

[0057] Since the aerosol generating substrate segment 11 is a granular combination, it is a one-piece medium when heated for smoking or stopped heating, and is not prone to disintegration and falling off. The problem of thin sheet loosening, filamentous components, granular components falling off and difficulty in cleaning in the prior art is solved.

[0058] The shape of the aerosol generating substrate segment 11 is not limited, and exemplarily, the aerosol generating substrate segment 11 can be cylindrical. The cross-sectional shape of the cylindrical aerosol generating substrate segment 11 can be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, racetrack-shaped, irregular, etc., wherein irregular refers to other symmetrical or asymmetrical shapes other than the shapes listed above.

[0059] Please refer to Figures 3 to 6The 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] Figure 3 and Figure 4 The first plate-shaped medium wall 1111 and the second plate-shaped medium wall 1112 shown 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] Figure 3 and Figure 4 The mesh skeleton 111 shown is surrounded by an annular medium wall 113 on its outer periphery. In some embodiments, the annular medium wall 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 0.07mm to 0.21mm (including the endpoint values). For example, the wall thickness of the mesh skeleton 111 can be 0.07mm, 0.1mm, 0.15mm, 0.2mm, 0.21mm, etc.

[0063] Please see Figure 4 The hollowed-out area (i.e.) Figure 4 The area within the dashed box L is the space formed by the hollowing out of the mesh skeleton 111. The first air channel 11c is the space within each grid of 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 segment 11 when heated, and to make the aerosols flow along the first air channel 11c.

[0064] The cross-sectional area of the single first air passage 11c can be designed as required, but in order to ensure that the aerosol generating substrate section 11 can release aerosol more fully and the aerosol can be transported more stably through the first air passage 11c, preferably, the cross-sectional area of the single first air passage 11c can be 1 / 50-1 / 10 (including the end point value) of the total cross-sectional area of the air passages of the aerosol generating substrate section 11, for example, the cross-sectional area of the single first air passage 11c can be 1 / 50, 1 / 40, 1 / 20, 1 / 10, etc. of the total cross-sectional area of the air passages of the aerosol generating substrate section 11. Among them, the total cross-sectional area refers to the sum of the cross-sectional areas of all air passages (excluding the heating channel 11a) on the aerosol generating substrate section 11, including the first air passage 11c.

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

[0066] The wall thickness of the plate-shaped passage wall 112 can be designed as required, but if the wall thickness of the plate-shaped passage wall 112 is small, the strength of the plate-shaped passage wall 112 is low, and the aerosol is released quickly, if the wall thickness of the plate-shaped passage wall 112 is large, the aerosol is not fully released, and the utilization rate of the aerosol is low, therefore, preferably, the wall thickness of the plate-shaped passage wall 112 can be 0.07mm-0.21mm (including the end point value), for example, the wall thickness of the plate-shaped passage wall 112 can be 0.07mm, 0.1mm, 0.15mm, 0.2mm, 0.21mm, etc.

[0067] The heating channel 11a is a passage for inserting the heating element 21 in the aerosol generating device 20 into the aerosol generating substrate section 11, that is, the heating element 21 is inserted into the heating channel 11a to roast and heat the aerosol generating substrate section 11 from the inside to the outside. Such a heating method is generally referred to as center heating. The specific method of center heating can be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., which is not limited here.

[0068] Please continue to refer to Figures 3 to 6The heating channel 11a is actually part of the hollowed region, or in other words, the heating channel 11a and the plurality of plate-shaped channel walls 112 are located in the hollowed region, and all of the plate-shaped channel walls 112, all of the first plate-shaped medium walls 1111, all of the second plate-shaped medium walls 1112, and all of the first air passages 11c are located at the outer periphery of the heating channel 11a. The peripheral side of the heating channel 11a has an opening 11b, that is, the heating channel 11a surrounded by the plurality of plate-shaped channel walls 112 does not have a continuous inner wall surface in the circumferential direction, or in other words, the cross-sectional profile of the heating channel 11a (that is, the cross section perpendicular to the extension direction of the heating channel 11a) is not a closed ring, but a broken structure.

[0069] Please continue to refer to Figure 8 The heating element 21 can be in contact with at least part of the plurality of plate-shaped channel walls 112, or can not be in contact with any of the plate-shaped channel walls 112, that is, a gap is formed between the heating element 21 and all of 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. Exemplarily, in the projection plane perpendicular to the extension direction of the heating channel 11a, the cross-sectional profile shape (the cross-sectional profile shape refers to the connecting line of one end of each plate-shaped channel wall 112 close to the center of the aerosol generating substrate section 11) surrounded by the plurality of plate-shaped channel walls 112 is a circular (please refer to Figure 4 ), polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, or a projection area of a racetrack-shaped projection area, which is the projection of the cross section of the heating channel 11a. That is, the plurality of plate-shaped channel walls 112 can roughly surround a space with a circular, polygonal, elliptical, or racetrack-shaped cross-sectional shape, and this space is the heating channel 11a.

[0070] The aperture of the heating channel 11a can be designed as needed, and exemplarily, the aperture of the heating channel 11a can be 0.5mm-3mm (including the end point value), such as 0.5mm, 1mm, 1.5mm, 2mm, 3mm, etc.

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

[0072] The cross-sectional area of the single first air passage 11c in relation to the cross-sectional area of the heating channel 11a can be designed as required, but in order to ensure that the aerosol generating substrate section 11 can release aerosol more fully and the aerosol can be transported more stably through the first air passage 11c, preferably, the cross-sectional area of the heating channel 11a can be 10 to 50 times (including the end values) the cross-sectional area of the single first air passage 11c, for example, the cross-sectional area of the heating channel 11a can be 10 times, 15 times, 20 times, 30 times, 50 times, etc. the cross-sectional area of the single first air passage 11c.

[0073] The embodiments of the present application also provide an aerosol generating article 10, please refer to Figure 1 and Figure 2 The aerosol generating article 10 includes a functional section 12, an outer wrapping layer 13, and the aerosol generating substrate section 11 provided by any of the embodiments of the present application. The functional section 12 is arranged at one end of the aerosol generating substrate along the extension direction of the heating channel 11a, and the functional section 12 at least includes a filter section 121 for filtering aerosol. The outer wrapping layer 13 is wrapped around the functional section 12 and the outer circumferential side of the aerosol generating substrate.

[0074] The filter section 121 is used to contact the user's oral cavity when the user smokes, so as to filter the aerosol.

[0075] The material of the filter section 121 includes but is not limited to one or more combinations of PE (polyethylene), PLA (Polylactic acid, also known as polylactide), PBAT (butylene adipate-co-terephthalate), PP (Polypropylene), acetate fiber, propylene fiber material.

[0076] It should be noted that the aerosol generating article 10 relies on the aerosol generating substrate section 11 to generate aerosol, and the functional section 12 does not generate aerosol.

[0077] Figure 2 The functional section 12 shown also has a cooling section 122 and a support section 123, which are located between the aerosol generating substrate section 11 and the filter section 121.

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

[0079] The material of the cooling section 122 includes but is not limited to one or more combinations of PE, PLA, PBAT, PP, acetate fiber, propylene fiber material.

[0080] The material of the cooling segment 122 and the filtering segment 121 can be the same or different.

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

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

[0083] In some scenarios, the support segment 123 can also provide a certain suction resistance.

[0084] The material of the support segment 123 includes but is not limited to acetate fiber, PET (polyethylene terephthalate), plant fiber, non-plant fiber, etc.

[0085] The support segment 123 can be arranged between the cooling segment 122 and the aerosol generating substrate segment 11, or arranged between the cooling segment 122 and the filtering segment 121.

[0086] In other embodiments, the functional segment 12 can only have the cooling segment 122 without the support segment 123, or only have the support segment 123 without the cooling segment 122, or have neither the cooling segment 122 nor the support segment 123.

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

[0088] The outer wrapping layer 13 can have multiple layers, for example, please refer to Figure 1 and Figure 2 The outer wrapping layer 13 can 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 substrate segment 11, the second wrapping layer 132 wraps the aerosol generating substrate segment 11, the cooling segment 122, and the support segment 123, and the third wrapping layer 133 wraps the filtering segment 121 and part of the cooling segment 122.

[0089] In other embodiments, the outer wrapping layer 13 can also have only one layer.

[0090] Please refer to Figure 2 and Figure 8In some embodiments, the aerosol generating article 10 can further comprise a cleaning segment 14 arranged at the end of the aerosol generating substrate away from the functional segment 12 to prevent the aerosol generating substrate segment 11 from shrinking and falling off after being heated and to prevent the aerosol from flowing back.

[0091] It should be noted that the aerosol generating substrate segment 11 of the embodiments of the present application is not limited to use in the aerosol generating article 10 with the functional segment 12. In some embodiments, the aerosol generating article 10 can not comprise the functional segment 12 (the end of the aerosol generating substrate segment 11 away from the functional segment 12 can also not comprise the cleaning segment 14 or other structures). For example, the aerosol generating device 20 can comprise a mouthpiece that can be reusable or disposable, which can be used in combination with the aerosol generating article 10 without the functional segment 12 to replace the functional segment 12.

[0092] The aerosol generating substrate segment 11 of the embodiments of the present application can improve the structural strength of the aerosol generating substrate segment 11 by arranging the mesh-like framework 111 to better prevent the aerosol generating substrate segment 11 from deforming. In addition, since the pores of the aerosol generating substrate segment 11 can shrink to a certain extent during the puffing process, the first plate-like medium wall 1111 and the second plate-like medium wall 1112 can also reduce the risk of the aerosol generating substrate segment 11 shrinking too much due to the puffing. By surrounding the heating channel 11a with the plurality of plate-like channel walls 112, the heat generated by the heating element 21 during the working process can be quickly transferred out of the opening 11b to avoid the heat from being accumulated in the heating channel 11a for a long time, thereby better preventing the aerosol generating substrate segment 11 from burning and improving the user's puffing experience.

[0093] In addition, for the heating scheme in which the heating element 21 contacts at least part of the plurality of plate-like channel walls 112, in the related art, the heating element directly contacts the annular inner wall of the heating channel, and the contact area between the heating element and the aerosol generating substrate segment is large, which can easily cause the aerosol generating substrate segment to burn. Since the heating channel 11a with the opening 11b at the circumferential side is surrounded by the plurality of plate-like channel walls 112, the contact area between the heating element 21 and the aerosol generating substrate segment 11 can be reduced, which can prevent the aerosol generating substrate segment 11 from burning. In addition, the heat generated by the heating element 21 during the working process can be transferred in the form of heat convection from the opening 11b and in the form of heat conduction by contacting the plate-like channel walls 112, and the heat transfer rate is high, thereby improving the extraction efficiency of the aerosol and better improving the puffing experience.

[0094] In an embodiment, referring to Figures 3 to 6 The plurality of plate-shaped channel walls 112 can include independent channel walls 112a, which are one of the plate-shaped channel walls 112, that is, the plate-shaped channel walls 112 can have other channel walls in addition to the independent channel walls 112a. The naming of the independent channel walls 112a is only for the purpose of distinguishing from other channel walls.

[0095] Please continue to refer to Figures 3 to 6 The independent channel walls 112a are connected to the mesh framework 111 and extend away from the mesh framework 111, that is, the independent channel walls 112a are independently arranged on the mesh framework 111 and are not connected or intersected with other channel walls.

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

[0097] Exemplarily, referring to Figures 3 to 6 When the number of independent channel walls 112a is more than one, at least part of the independent channel walls 112a can be arranged adjacent to and spaced apart from each other, so that an opening 11b is formed between the two adjacent independent channel walls 112a.

[0098] That is, the mesh framework 111 and the two adjacent independent channel walls 112a can surround a second air passage 11d which communicates with the corresponding opening 11b, and 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 heat convection, thereby also preventing the aerosol generating substrate segment 11 from being burnt.

[0099] In an embodiment, referring to Figures 3 to 6 The plurality of plate-shaped channel walls 112 can include first connecting walls 112b and second connecting walls 112c, and the first connecting walls 112b and the second connecting walls 112c intersect.

[0100] Specifically, the first connecting walls 112b and the second connecting walls 112c are plate-shaped channel walls 112, and the first connecting walls 112b and the second connecting walls 112c are channel walls of the plate-shaped channel walls 112 for intersection. The naming of the first connecting walls 112b and the second connecting walls 112c is also only for the purpose of distinguishing from other channel walls. That is, at least part of the plurality of plate-shaped channel walls 112 surrounding the heating channel 11a can intersect to improve the structural strength of the aerosol generating substrate segment 11.

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

[0102] The corner 112d can be a Figure 3 fillet, that is, the first connecting wall 112b and the second connecting wall 112c are transitioned by an arc at the junction, or the corner 112d can be a Figure 4 sharp corner, that is, the first connecting wall 112b and the second connecting wall 112c form a junction line at the junction. Figure 5 For both the sharp corner and the fillet, if the heating element 21 is inserted into the heating passage 11a and contacts the corner 112d, the heating element 21 is in line contact with the corner 112d, thereby preventing excessive contact between the heating element 21 and the corner 112d and causing charring.

[0103] Please continue to refer to

[0104] , the first connecting wall 112b can be adjacent to and spaced apart from a separate passage wall 112a, so that an opening 11b is formed between the first connecting wall 112b and the adjacent separate passage wall 112a. That is, the mesh framework 111, the first connecting wall 112b, and the separate passage wall 112a adjacent to the first connecting wall 112b surround a third air channel 11e that communicates with the corresponding opening 11b. The heat generated by the heating element 21 during operation can enter the third air channel 11e from the corresponding opening 11b, that is, heat transfer between the heating element 21 and the third air channel 11e can be achieved by heat convection, thereby preventing the aerosol generating substrate segment 11 from charring. Figures 3 to 5 Similarly, referring to

[0105] , the second connecting wall 112c can also be adjacent to and spaced apart from a separate passage wall 112a, so that an opening 11b is formed between the second connecting wall 112c and the adjacent separate passage wall 112a. That is, the mesh framework 111, the second connecting wall 112c, and the separate passage wall 112a adjacent to the second connecting wall 112c can also surround a fourth air channel 11f that communicates with the corresponding opening 11b. The heat generated by the heating element 21 during operation can enter the fourth air channel 11f from the corresponding opening 11b to achieve heat transfer by heat convection, thereby preventing the aerosol generating substrate segment 11 from charring. Figures 3 to 5

[0106] Figures 3 to 5 ​The illustrated aerosol generating substrate section 11 is provided with both the independent passage wall 112a adjacent to and spaced from the first connecting wall 112b and the independent passage wall 112a adjacent to and spaced from the second connecting wall 112c. In other embodiments, only the independent passage wall 112a adjacent to and spaced from the first connecting wall 112b can be provided without the independent passage wall 112a adjacent to and spaced from the second connecting wall 112c, or only the independent passage wall 112a adjacent to and spaced from the second connecting wall 112c can be provided without the independent passage wall 112a adjacent to and spaced from the first connecting wall 112b.

[0107] In another embodiment, referring to Figure 6 , the first connecting wall 112b and the second connecting wall 112c can intersect, with a portion of the first connecting wall 112b forming a first protruding portion 112b1 protruding from the second connecting wall 112c and a portion of the second connecting wall 112c forming a second protruding portion 112c1 protruding from the first connecting wall 112b, and the first protruding portion 112b1 and the second protruding portion 112c1 are used to surround the heating passage 11a.

[0108] Specifically, referring to Figure 6 , since the first protruding portion 112b1 protrudes from the second connecting wall 112c and the second protruding portion 112c1 protrudes from the first connecting wall 112b, when the heating element 21 is inserted into the heating passage 11a, an air channel gap can be formed between the first protruding portion 112b1, the second protruding portion 112c1, and the heating element 21, and the heat generated by the heating element 21 during operation can enter the air channel gap to achieve heat transfer through thermal convection, thereby preventing the aerosol generating substrate section 11 from being burnt.

[0109] Further, referring to Figure 6 , the side of the first protruding portion 112b1 away from the second connecting wall 112c can be provided with the independent passage wall 112a spaced from the first protruding portion 112b1, and an opening 11b can be formed between the first protruding portion 112b1 and the spaced independent passage wall 112a, that is, the mesh framework 111, the second connecting wall 112c, the first protruding portion 112b1, and the independent passage wall 112a spaced from the first protruding portion 112b1 can also surround the fifth air channel 11g in communication with the corresponding opening 11b, and the heat generated by the heating element 21 during operation can enter the fifth air channel 11g from the corresponding opening 11b to achieve heat transfer through thermal convection, thereby preventing the aerosol generating substrate section 11 from being burnt.

[0110] Similarly, referring to Figure 6, the side of the second protruding portion 112c1 away from the first connecting wall 112b can also be provided with an independent passage wall 112a spaced from the second protruding portion 112c1, and an opening 11b is formed between the second protruding portion 112c1 and the independent passage wall 112a spaced therefrom, that is, the mesh framework 111, the first connecting wall 112b, the second protruding portion 112c1, and the independent passage wall 112a spaced from the second protruding portion 112c1 can also be surrounded to form a sixth air passage 11h in communication with the corresponding opening 11b, and 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 generating substrate section 11 from burning.

[0111] Figure 6 The aerosol generating substrate section 11 shown is provided with both the independent passage wall 112a spaced from the first protruding portion 112b1 and the independent passage wall 112a spaced from the second protruding portion 112c1. In other embodiments, only the independent passage wall 112a spaced from the first protruding portion 112b1 can be provided, and the independent passage wall 112a spaced from the second protruding portion 112c1 can not be provided, or only the independent passage wall 112a spaced from the second protruding portion 112c1 can be provided, and the independent passage wall 112a spaced from the first protruding portion 112b1 can not be provided.

[0112] Please refer to Figures 3 to 6 , the aerosol generating substrate section 11 can be provided with a plurality of connecting wall groups, each of which has intersecting first connecting walls 112b and second connecting walls 112c, that is, the first connecting walls 112b and the second connecting walls 112c in each connecting wall group intersect, and the first connecting walls 112b and the second connecting walls 112c of different connecting wall groups do not intersect. Please continue to refer to Figures 3 to 6 , the plurality of connecting wall groups can be spaced apart along the circumference of the hollowed-out area, that is, the two adjacent connecting wall groups can be used to form the opening 11b.

[0113] Please refer to Figures 3 to 6 , the plurality of connecting wall groups can be diagonally arranged two by two, that is, one connecting wall group is diagonally arranged with another connecting wall group. This arrangement can make the connecting wall groups more evenly distributed on the circumferential side of the heating passage 11a, so that the heat generated by the heating element 21 during operation can be uniformly transmitted through the connecting wall groups.

[0114] Please refer to Figures 3 to 6, at least two independent channel walls 112a can be arranged between two adjacent connecting wall groups, and an opening 11b is formed between two adjacent independent channel walls 112a. That is, the opening 11b can be formed between the connecting wall group and the independent channel wall 112a closest to the connecting wall group, and between two adjacent independent channel walls 112a, respectively. The heat generated by the heating element 21 during operation can be transferred outward from the multiple openings 11b, so that the aerosol generating substrate segment 11 can be better prevented from being burnt.

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

[0116] In the description of the present application, the description with reference to the terms “in an embodiment”, “in some embodiments”, “in other embodiments”, “in yet other embodiments”, or “exemplary” means that the specific features, structures, materials or characteristics described in connection 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 exemplary description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined by those skilled in the art without contradiction.

[0117] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. An aerosol generation matrix segment, characterized in that, include: 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, characterized in that, The plurality of plate-shaped channel walls include individual channel walls connected to the mesh skeleton and extending away from the mesh skeleton; wherein, there are a plurality of individual channel walls, and at least some of the individual channel walls are arranged adjacent to each other and spaced apart, so that the opening is formed between two adjacent individual channel walls.

3. The aerosol generation matrix segment according to claim 1, characterized in that, The multiple plate-shaped channel walls include a first connecting wall and a second connecting wall, which intersect.

4. The aerosol generation matrix segment according to claim 3, characterized in that, The first connecting wall and the second connecting wall intersect to form a corner, which is used to enclose the heating channel.

5. The aerosol generation matrix segment according to claim 4, characterized in that, The plurality of plate-shaped channel walls include individual channel walls, which are connected to the mesh skeleton and extend 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, so 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 generation matrix segment according to claim 3, characterized in that, 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.

7. The aerosol generation matrix segment according to claim 6, characterized in that, The plurality of plate-shaped channel walls include individual channel walls, which are connected to the mesh skeleton and extend 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, characterized in that, The aerosol generating matrix section has a plurality of connecting wall groups arranged circumferentially along the hollow area, and each connecting wall group 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, characterized in that, The wall thickness of the plate-like channel 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 segment according to any one of claims 1-3, characterized in that, 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, which is a projection of the cross-section of the heating channel.

11. The aerosol generation matrix segment according to claim 10, characterized in that, The diameter of the heating channel is 0.5mm to 3mm; 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 product, characterized in that, include: 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 product according to claim 12, characterized in that, The functional section further includes at least one of a cooling section and a support section disposed between the aerosol generation matrix section and the filtration section.

14. The aerosol-generating article according to claim 12 or 13, characterized in that, The aerosol generating product further includes a cleaning section, which is disposed at one end of the aerosol generating matrix away from the functional section.

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