Aerosol generating product and aerosol generating system

Abstract

The embodiment of the invention provides an aerosol generating product and an aerosol generating system.The aerosol generating product comprises a coating layer, a medium section and a supporting piece, at least one air channel hole is formed in the medium section, the air channel hole penetrates through at least one end of the medium section, and the medium section is used for being heated to generate aerosol; the supporting piece is located at the far lip end of the medium section in the length direction and used for being in stopping fit with the medium section. And the coating layer coats the outer sides of the medium section and the supporting piece along the length direction. According to the aerosol generating product provided by the embodiment of the invention, through the backstop matching between the supporting piece and the medium section, the probability that the medium section shrinks and deforms after being heated and falls off from the coating layer is reduced; in addition, the supporting piece can adjust the suction resistance, and the probability that condensate generated after the aerosol is condensed flows out of the aerosol generating product is reduced.

Description

Technical Field

[0001] The present invention relates to the field of atomization technology, and in particular to an aerosol generating product and an aerosol generating system. Background Art

[0002] In recent years, with the advancement of the global tobacco control movement, new tobacco products represented by heated tobacco products have become increasingly popular among users.

[0003] Heat-not-burn (HTB) tobacco products, also known as aerosol-generating products, contain a media segment made of an aerosol-generating substrate. Aerosol-generating products are typically used in conjunction with an aerosol-generating device. The heating element in the aerosol-generating device heats the media segment to a temperature sufficient to atomize and generate an aerosol without combustion. The aerosol is then discharged from the aerosol-generating device for inhalation by the user.

[0004] During use and transportation, the medium segment may be deformed and fall off due to factors such as temperature changes and external vibrations. Summary of the Invention

[0005] In view of this, embodiments of the present application hope to provide an aerosol generating product and an aerosol generating system that can reduce the probability of medium segments falling off.

[0006] To achieve the above objectives, the technical solution of the embodiment of the present application is implemented as follows:

[0007] An embodiment of the present invention provides an aerosol generating product, comprising:

[0008] a medium segment, wherein at least one air passage hole is provided inside the medium segment, the air passage hole passing through at least one end of the medium segment, and the medium segment is used to be heated to generate aerosol;

[0009] a support member, located at a distal lip end of the media segment along the length direction, and configured to cooperate with the media segment stopper;

[0010] The covering layer covers the outer sides of the medium segment and the supporting member along the length direction.

[0011] In some embodiments, the distal lip end of the media segment along the length direction has a first end surface, and the support member is configured to engage with the first end surface for stopping.

[0012] In some embodiments, the support member includes a cylinder, and the outer circumferential surface of the cylinder and the outer circumferential surface of the medium segment are both in contact with the inner wall of the inner circumferential surface of the cladding layer.

[0013] In some embodiments, the wall thickness of the cylinder is not less than 5 mm.

[0014] In some embodiments, the support member includes a stopper, which is disposed inside the cylinder and connected to the cylinder.

[0015] In some embodiments, the blocking member is in the shape of a rib, and there are multiple blocking members. One end of the multiple blocking members is connected to each other, and the other end is connected to the cylinder. The multiple blocking members are radially distributed around the center of the cylinder.

[0016] In some embodiments, the baffle is a fiber filter structure, which fills the inner space of the cylinder and is fixed to the inner wall of the cylinder.

[0017] In some embodiments, the blocking member is in the shape of a screen.

[0018] In some embodiments, the support member is an integrated structure and is columnar, and the support member is provided with a plurality of first air flow holes passing through the support member along its length direction, and a plurality of airway holes are provided in the medium segment, and the airway holes at least pass through the medium segment toward one end of the support member, and the first air flow holes and the airway holes are connected.

[0019] In some embodiments, the support member is a membrane structure with breathable function.

[0020] In some embodiments, the aerosol-generating article includes a functional section, wherein the functional section includes a cooling section and a filtering section, wherein the cooling section and the filtering section are disposed within the coating layer and are located on one side of the proximal lip end of the media section along the length direction;

[0021] And\or, the functional section includes two cooling sections, the two cooling sections are arranged in the coating layer and located on one side of the lip end of the dielectric section along the length direction;

[0022] And\or, the functional segment includes two filter segments, and the two filter segments are arranged in the coating layer and located on one side of the lip end of the medium segment along the length direction.

[0023] In some embodiments, the cooling section is located between the medium section and the filtration section, and the medium section and the cooling section are spaced apart to form a first cavity;

[0024] and\or, the coating layer protrudes from the end surface of the filter segment on the side facing away from the medium segment to form a second cavity on the air outlet side of the filter segment;

[0025] And\or, the functional section is a two-section combined structure, and the two-section combined structure is spaced apart to form a third cavity.

[0026] In some embodiments, the cooling section is located between the medium section and the filtration section, both ends of the medium section are in contact with the support member and the cooling section respectively, and one end of the cooling section away from the medium section is in contact with the filtration section.

[0027] In some embodiments, the medium segment, the support member, the cooling segment and the filter segment are cylinders with the same outer diameter and are coaxially arranged, and the length direction is the axial direction of the medium segment, the support member, the cooling segment and the filter segment.

[0028] An embodiment of the present invention further provides an aerosol generating system, comprising an aerosol generating device and the aerosol generating article of any of the aforementioned embodiments, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

[0029] The aerosol-generating product in the embodiment of the present invention reduces the probability of the medium segment shrinking and deforming after heating and falling off from the covering layer through the stop cooperation between the support member and the medium segment; in addition, the support member can play a role in adjusting the suction resistance, reducing the probability of condensate generated after the aerosol condenses and flowing out of the aerosol-generating product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of an aerosol-generating article according to a first embodiment of the present invention;

[0031] Figure 2 for Figure 1 A cross-sectional diagram of an embodiment in FIG, wherein the dotted arrow indicates the direction of air flow;

[0032] Figure 3 is a schematic diagram of an aerosol-generating article according to a second embodiment of the present invention;

[0033] Figure 4 is a schematic cross-sectional view of an aerosol-generating article according to a third embodiment of the present invention;

[0034] Figure 5 is a schematic cross-sectional view of an aerosol-generating article according to a fourth embodiment of the present invention;

[0035] Figure 6 is a schematic cross-sectional view of an aerosol-generating article according to a fifth embodiment of the present invention;

[0036] Figure 7 is a schematic cross-sectional view of an aerosol-generating article according to a sixth embodiment of the present invention;

[0037] Figure 8 is a schematic cross-sectional view of an aerosol-generating article according to a seventh embodiment of the present invention;

[0038] Figure 9is a schematic cross-sectional view of an aerosol-generating article according to an eighth embodiment of the present invention;

[0039] Figure 10 is a schematic cross-sectional view of an aerosol-generating article according to a ninth embodiment of the present invention;

[0040] Figure 11 FIG2 is a schematic cross-sectional view of an aerosol-generating article according to a tenth embodiment of the present invention.

[0041] Description of Reference Numerals

[0042] Coating layer 10; dielectric section 20; air passage hole 20a; first end surface 20b; support member 30; first air flow hole 30a; cylinder 31; block member 32; functional section 40; first cavity 40a; second cavity 40b; third cavity 40c; cooling section 41; second air flow hole 41a; filter section 42 DETAILED DESCRIPTION

[0043] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0044] In the description of this application, the "longitudinal direction" orientation or position relationship is based on the attached Figure 2 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0045] An embodiment of the present invention provides an aerosol generating article for being loaded into an aerosol generating device to generate aerosol, see Figure 1 and Figure 2 The aerosol generating article includes a cover layer 10 , a medium segment 20 and a support member 30 .

[0046] At least a portion of the media segment 20 is composed of an aerosol-generating substrate, so that the media segment 20 can be heated to generate an aerosol for inhalation by a user.

[0047] At least one air passage hole 20a is defined within the media segment 20, extending through at least one end of the media segment 20. Aerosol generated by heating the aerosol-generating substrate is collected in the air passage hole 20a, and the airflow in the air passage hole 20a can entrain the aerosol and ultimately flow out of the aerosol-generating article.

[0048] The support member 30 is located at the distal lip end of the media segment 20 along the length direction.

[0049] The coating layer 10 is coated on the outer side of the medium segment 20 along the length direction. The coating layer 10 can protect the medium segment 20 and conduct heat.

[0050] It is understandable that the material of the covering layer 10 has a certain structural strength to avoid deformation due to airflow pressure during the suction process.

[0051] The specific material of the coating layer 10 is not limited, for example, one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT and the like.

[0052] The support member 30 is provided at the distal lip end of the medium segment 20 along the length direction, and is used to cooperate with the medium segment 20 to stop and restrict the range of movement of the medium segment 20 .

[0053] In related art, the dielectric segment 20 may shrink and deform after heating, and may develop a tendency to move under the influence of factors such as gravity. In the aerosol-generating article of the present invention, the stopper between the support member 30 and the dielectric segment 20 can restrain the deformed dielectric segment 20 to a certain extent, thereby reducing the probability of it falling out of the covering layer 10. Furthermore, the support member 30 can adjust the suction resistance and reduce the probability of condensate generated by aerosol condensation flowing out of the aerosol-generating article.

[0054] It should be noted that in the embodiments of the present invention, the length direction does not specifically refer to the direction in which the outer contour of the dielectric segment 20 is longest. The arrangement direction of the support member 30 and the dielectric segment 20 is consistent with the length direction; the direction in which the aerosol-generating article is inserted into the aerosol-generating device and the direction in which the aerosol-generating article is removed from the aerosol-generating device are both parallel to the length direction. The length of the dielectric segment 20 in the length direction may be longer, shorter, or the same as the length in other directions.

[0055] For example, when the dielectric segment 20 is cylindrical, the length direction is the axial direction of the dielectric segment 20. It should be noted that even when the axial length of the dielectric segment 20 is smaller than its diameter, the length direction of the dielectric segment 20 is still the axial direction.

[0056] For example, when the outer contour of the medium segment 20 is a rectangular parallelepiped, the length direction is still the direction defined above, that is, the arrangement direction of the functional segment 20 and the medium segment 20; or, in the direction of taking and placing the aerosol generating product, the length direction of the medium segment 20 can be any direction of the length, width, or height of the rectangular parallelepiped.

[0057] The lip-distal end refers to the end of the aerosol-generating article along its length that is farther from the user's lips during use; the lip-proximal end refers to the end of the aerosol-generating article along its length that is closer to the user's lips during use. It should be understood that the lip-distal end of the media segment 20 refers to the end of the media segment 20 along its length that is farther from the user's lips, while the lip-proximal end of the media segment 20 refers to the end of the media segment 20 along its length that is closer to the user's lips.

[0058] The specific components of the aerosol-generating matrix are not limited here. For example, the aerosol-generating matrix may include plant components, auxiliary components, smoke-generating components, adhesive components, etc.

[0059] In some embodiments, the plant component is one or more combinations of powders formed from crushed tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust, and flavorful plants. The plant component is the core source of the flavor of the product. Endogenous substances in the plant component, such as nicotine, enter the human bloodstream through aerosolization, promoting dopamine production in the pituitary gland, thereby achieving a sense of physiological satisfaction.

[0060] In some embodiments, the auxiliary ingredient may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers can provide skeletal support for the plant component and, because they have micropores, can increase the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0061] Lubricants include one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase particle flowability, reduce friction between particles, and achieve a more uniform particle density. They can also reduce mold pressure and reduce mold wear.

[0062] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers (also known as surfactants) reduce the interfacial tension between water-soluble and water-insoluble components in a mixed system and form a strong film on the surface of the droplets. Alternatively, due to the charge imparted by the emulsifier, an electrical double layer is formed on the droplet surface, preventing the droplets from agglomerating and maintaining a uniform emulsion. Emulsifying and homogenizing two immiscible components can improve the consistency of product quality.

[0063] The function of the smoke-generating agent component is to generate a large amount of vapor when heated, thereby increasing the amount of smoke produced by the smoking article. In one embodiment, the smoke-generating agent may include, for example, a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butylene glycol, 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 dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso-erythritol, a mixture of diacetyl glycerides, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, and lauryl acetate).

[0064] In some embodiments, the adhesive component is a natural plant-derived, non-ionically modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive wetting and intimately contacting the product's component materials creates intermolecular attraction, thereby bonding the powders and liquids of the component materials. The use of a natural plant-derived, non-ionic adhesive can prevent the release of harmful substances such as methanol, formaldehyde, and acrolein caused by colloid modification, thereby improving the safety of the product.

[0065] In some embodiments, see Figure 1 , the aerosol-generating product is columnar.

[0066] The specific manner of achieving the stop cooperation between the support member 30 and the medium segment 20 is not limited.

[0067] For example, the media segment 20 has a first end surface 20b at the distal lip end along its length, and the support member 30 is configured to engage with the first end surface 20b in a stoppered manner. In other words, the support member 30 can abut against the first end surface 20b to inhibit movement of the media segment 20 toward its distal lip end, thereby preventing the media segment 20 from separating from the coating. In this way, the support member 30 inhibits the media segment 20 from moving toward the distal lip end along its length.

[0068] The stopper cooperation between the support member 30 and the first end face 20b can be arranged at an interval between the two, and after the medium segment 20 moves a distance along the length direction toward its distal lip end, the support member 30 and the first end face 20b abut against each other; or the two always maintain an abutting state.

[0069] It is understandable that the manner of the stop cooperation between the support member 30 and the dielectric segment 20 is not limited to the aforementioned manner. In other embodiments, the support member 30 may also form a stop cooperation with the side surface of the dielectric segment 20 .

[0070] In some embodiments, the support member 30 is fixed to the cladding layer 10 so that the relative positions of the support member 30 and the cladding layer 10 are fixed, thereby better constraining the position of the dielectric segment 20 .

[0071] The specific method for securing the coating layer 10 to the support member 30 is not limited. For example, the coating layer 10 and the dielectric segment 20 may be secured by bonding. In another example, the inner circumferential surface of the coating layer 10 and the support member 30 may be secured by an interference fit or a transition fit, with the friction generated by the contact between the two.

[0072] It is understandable that there is a certain acting force between the dielectric segment 20 and the inner circumferential surface of the cladding layer 10 to suppress the tendency of the dielectric segment 20 to move.

[0073] For example, the outer circumferential surface of the medium segment 20 is in contact with the inner circumferential surface of the coating layer 10, and the position of the medium segment 20 is fixed by the friction between the outer circumferential surface of the medium segment 20 and the inner circumferential surface of the coating layer 10, thereby suppressing the movement of the medium segment 20 due to the shaking of the aerosol-generating product during transportation and use.

[0074] It is understandable that the outer circumferential surface of the dielectric segment 20 and the inner circumferential surface of the coating layer 10 are in an interference fit or a transition fit, so that compression occurs between the two to increase friction.

[0075] It can be understood that the support member 30 is at least partially located on the inner circumferential surface of the cover layer 10 .

[0076] It is understandable that the airflow may directly pass through the support member 30 or pass through the gap between the cover layer 10 and the support member 30 so that the airflow can enter the distal lip end of the media segment 20 .

[0077] In some embodiments, see Figure 2 、 Figure 3 、 Figure 5 and Figure 7 The support member 30 is provided with a plurality of first air flow holes 30 a extending along its length direction so that the air flow can directly pass through the support member 30 .

[0078] It can be understood that the first air flow holes 30 a are holes in a macroscopic sense, which can be directly identified by the naked eye.

[0079] It is understandable that the number of the first air flow hole 30a can be one or more.

[0080] The specific method of forming the first air flow holes 30 a is not limited.

[0081] For example, see Figure 2 The support member 30 includes a cylinder 31 , and the space inside the cylinder 31 forms a first air flow hole 30 a .

[0082] In some embodiments, see Figure 2 The outer circumferential surface of the cylinder 31 fits with the inner circumferential surface of the cladding layer 10. The friction between the outer circumferential surface of the cylinder 31 and the inner circumferential surface of the cladding layer 10 achieves the fixed relative position between the cylinder 31 and the cladding layer 10, thereby reducing the probability of the cylinder 31 separating from the cladding layer 10 under the push of the medium segment 20 and causing the medium segment 20 to fall out.

[0083] It can be understood that the outer circumferential surface of the cylinder 31 and the inner circumferential surface of the coating layer 10 are in an interference fit or a transition fit, so that extrusion occurs between the two, increasing the friction and making the connection between the cylinder 31 and the coating layer 10 stable.

[0084] Glue may be applied between the outer circumferential surface of the cylinder 31 and the inner circumferential surface of the coating layer 10 to bond the cylinder 31 and the coating layer 10 , thereby further improving the connection stability therebetween.

[0085] The cross-sectional shape of the cylinder 31 along the length direction is not limited and can be circular or polygonal.

[0086] It can be understood that the cross-sectional shape of the cylinder 31 along the vertical length direction is the same as the cross-sectional shape of the inner circumferential surface of the coating layer 10 along the vertical length direction.

[0087] In some embodiments, see Figure 1 and Figure 3 The cross-sectional shape of the outer circumferential surface of the cylinder 31 along the vertical length direction, the cross-sectional shape of the inner circumferential surface of the coating layer 10 along the vertical length direction, and the cross-sectional shape of the outer circumferential surface of the medium segment 20 along the vertical length direction are all circular, and the diameter of the outer circumferential surface of the cylinder 31 is the same as the diameter of the circumferential surface of the medium segment 20.

[0088] After the dielectric segment 20 shrinks and deforms due to heating, the support member 30 can still engage with the first end surface 20 b to prevent the dielectric segment 20 from falling out of the coating layer 10 .

[0089] In some embodiments, the wall thickness of the cylinder 31 is not less than 5 mm (millimeter), so that after the cross-section of the outer circumferential surface of the medium segment 20 along the vertical length direction shrinks to the maximum minimum size position at the rated operating temperature, the first end face 20b can still cooperate with the stopper of the support member 30 to prevent the medium segment 20 from falling out of the coating layer 10.

[0090] The specific value of the wall thickness of the cylinder 31 is not limited, for example, 5 mm, 6 mm, 7 mm, etc.

[0091] In other embodiments, see Figure 3 The support member 30 further includes a stopper 32, which is disposed within and connected to the cylinder 31. That is, even if the dielectric segment 20 contracts to its minimum size at the rated operating temperature, preventing the cylinder 31 from engaging with the first end surface 20b, the stopper 32 can still engage with the first end surface 20b, thereby preventing the dielectric segment 20 from being released from the coating 10. It is understood that in embodiments in which the stopper 32 is provided, the blocking effect of the stopper 32 requires a lower wall thickness for the cylinder 31. For example, the wall thickness of the cylinder 31 may be no less than 2 mm, and specific values ​​may be 2 mm, 3 mm, 4 mm, etc., to ensure the structural strength of the cylinder 31 while reducing its weight.

[0092] It is understandable that when the medium segment 20 shrinks to the minimum size at the rated operating temperature, in the projection along the length direction, at least part of the projection of the blocking member 32 is located within the projection range of the medium segment 20 .

[0093] The specific structure of the blocking member 32 is not limited.

[0094] In some embodiments, see Figure 3 The stopper 32 is in the shape of a rib, and there are multiple stoppers 32. One ends of the multiple stoppers 32 are connected to each other, and the other ends are connected to the cylinder 31. The multiple stoppers 32 are radially distributed around the center of the cylinder 31, so that when the medium segment 20 shrinks and deforms and the cylinder 31 and the medium segment 20 cannot stop and cooperate, the stopper 32 can still achieve stop cooperation with the medium segment 20, thereby preventing the medium segment 20 from falling off.

[0095] Understandably, see Figure 3 A plurality of first air flow holes 30 a are formed between each stopper 32 and the cylinder 31. Moreover, after the medium segment 20 shrinks to the minimum size at the rated operating temperature, the cross-sectional size of the largest one of the first air flow holes 30 a is still smaller than the cross-sectional size of the medium segment 20, so as to prevent the medium segment 20 from falling out of the first air flow holes 30 a.

[0096] The end of the stopper 32 facing the medium segment 20 is flush with the end of the cylinder 31 facing the medium segment 20, so that after the medium segment 20 shrinks in size, it will not be displaced due to the release of the stop fit between the first end face 20b and the cylinder 31, thereby causing part of the aerosol generating matrix of the medium segment 20 to fall off.

[0097] The end of the blocking member 32 away from the medium segment 20 may be flush with the end of the cylinder 31 away from the medium segment 20 or may not be flush with each other.

[0098] In some embodiments, see Figure 4 The stopper 32 is a fiber filter structure, which is filled in the inner space of the cylinder 31. On the one hand, the fibers in the fiber filter structure can form a stop fit with the first end face 20b, so that when the medium segment 20 shrinks and deforms and the cylinder 31 and the medium segment 20 cannot stop fit, the fibers can still achieve a stop fit with the medium segment 20, thereby preventing the medium segment 20 from falling off; on the other hand, air flow pores are formed between the fibers in the fiber filter structure, and the air flow passes through the air flow pores and flows to the far lip end of the medium segment 20. In the process of passing through the air flow pores, due to the large surface area of ​​the fiber filter structure, it can filter the air flow, thereby reducing the impurities carried by the air flow entering the medium segment 20 and improving the user experience. At the same time, the fiber filter structure can adjust the resistance of the air flow suction, and the fiber filter structure can prevent the condensate formed after the aerosol condenses from flowing out of the aerosol generating product and having an adverse effect on other devices in the aerosol generating device.

[0099] The fiber filter structure is connected to the inner wall of the cylinder 31 to fix the fiber filter structure.

[0100] It is understandable that the airflow pores formed in the fiber filtration structure can be pores in a macroscopic sense; or they can be pores in a microscopic sense, that is, they cannot be directly identified by the naked eye.

[0101] The specific method of connecting the fiber filter structure to the inner wall of the cylinder 31 is not limited, for example, bonding.

[0102] The specific method of forming the fiber filtration structure is not limited.

[0103] Illustratively, the baffle 32 is filled with acetate tow.

[0104] Acetate tow includes acetate fiber. Acetate fiber, also known as cellulose acetate or cellulose acetate, is a chemically modified polymer obtained by esterifying the hydroxyl groups in cellulose molecules with acetate. It includes diacetate and triacetate fibers and exhibits excellent resistance to acids, alkalis, and organic solvents.

[0105] In some embodiments, see Figure 7The stopper 32 is mesh-shaped. This mesh-shaped design means that the stopper 32 is relatively small along its length and is formed with a plurality of first airflow holes 30a extending therethrough. This effectively reduces the length of the stopper 32 while ensuring a stopper fit with the heat-shrunken medium segment 20. This helps reduce the overall size of the aerosol-generating article and makes its structure more compact.

[0106] The specific method of forming the baffle 32 into a sieve shape is not limited. For example, the baffle 32 is formed by interweaving a plurality of crisscrossing filamentary structures, and the first air flow hole 30a is formed between the interwoven filamentary structures; for another example, the baffle 32 is in the shape of a thin plate, and the first air flow hole 30a passes through the baffle 32 along the thickness direction of the baffle 32.

[0107] In some embodiments, the stopper 32 and the cylinder 31 are split structures so that they can be assembled and disassembled separately.

[0108] In some embodiments, the support member 30 is an integrated structure, which facilitates assembly and disassembly of the support member 30 , helps simplify the manufacturing process of the support member 30 , and improves the overall structural strength of the support member 30 .

[0109] The specific method of forming the support member 30 into an integrated structure is not limited.

[0110] For example, see Figure 5 The support member 30 is cylindrical and has a plurality of first airflow holes 30a extending along its length. The first airflow holes 30a are connected to the airway holes 20a. In other words, the first airflow holes 30a are arranged in a corresponding manner with the airway holes 20a. This allows the airflow from the first airflow holes 30a to flow quickly into the airway holes 20a, thereby improving aerosol extraction efficiency and adjusting the airflow resistance, thereby enhancing the user experience.

[0111] The number of the first air flow hole 30a and the airway hole 20a is not limited, and can be one or more, and the number of the two is the same.

[0112] The airway holes 20a are holes in a macroscopic sense.

[0113] The support member 30 can be formed into an integral structure by extrusion, die casting or injection molding, and the first air flow holes 30 a can be formed simultaneously, thereby improving production efficiency.

[0114] For example, see Figure 6The support member 30 is a breathable membrane structure. The membrane structure is provided with numerous micropores, allowing airflow to pass through the membrane structure. This effectively reduces the length of the support member 30 while ensuring a stop fit with the heated and shrunken dielectric segment 20, thereby reducing the overall size of the aerosol-generating article and making the structure more compact.

[0115] Micropores are pores in a microscopic sense.

[0116] The connection method between the membrane structure and the cylinder 31 is not limited, such as bonding.

[0117] The specific material of the membrane structure is not limited, such as polytetrafluoroethylene.

[0118] It is understandable that the stopper 32 and the cylinder 31 can form an integrated structure.

[0119] In some embodiments, micropores are formed in the aerosol generating matrix of the medium segment 20, and at least some of the micropores are connected to each other and form micro airways connected to the airway holes 20a. In addition, it can be understood that the connection between the micropores can be that some of the micropores are connected and some of the micropores are not connected; or all of the micropores are connected to each other. The airway holes 20a and micropores in the aerosol generating matrix in the embodiment of the present invention can increase the surface area of ​​the aerosol generating matrix, facilitate heat transfer, and improve heating efficiency. When the aerosol generating matrix is ​​heated, a part of it is collected in the airway hole 20a through the micropores and is transported to the near-lip end under the action of the suction negative pressure, and the other part is directly transported to the near-lip end through the micro airways. The airway hole 20a can reduce the user's suction resistance and improve the user experience.

[0120] It should be noted that the airway pores 20a are pores in the macroscopic sense, while the micropores are pores in the microscopic sense. The cross-sectional area of ​​the airway pores 20a is much larger than the cross-sectional area of ​​the micropores. In the embodiment where the media segment 10 is a particle assembly, the size of the micropores is determined by the gaps between the particles.

[0121] It is understood that, given the dimensions of the media segment 20, the number of airway holes 20a is negatively correlated with the thickness of the media wall between adjacent airway holes 20a. The greater the number of airway holes 20a, the greater the specific surface area of ​​the airway holes 20a, the lower the flow resistance of the generated aerosol, and the higher the heat transfer efficiency. The thinner the media wall between adjacent airway holes 20a, the more conducive heat penetration or diffusion is. The thinner the media wall between adjacent airway holes 20a, the lower the overall quality of the aerosol-generating matrix. The reduction in base material also has a relatively reduced impact on puff quality and overall aerosol release. Furthermore, the thickness of the media wall between adjacent airway holes 20a affects the structural strength of the media segment 20: the thinner the wall thickness, the lower the overall structural strength.

[0122] The medium segment 20 can be formed into an integral structure by extrusion, die casting or injection molding, and the airway hole 20a can be formed simultaneously, thereby improving production efficiency.

[0123] It is understandable that the aerosol discharged from the proximal lip end of the medium segment 20 needs to be processed before being provided to the user for inhalation, so as to enhance the user experience.

[0124] In some embodiments, see Figure 2 The aerosol generating article includes a functional section 40 , which includes a cooling section 41 and a filtering section 42 . The functional section 40 is arranged in the covering layer 10 and is located on one side of the proximal lip end of the medium section 20 .

[0125] The cooling section 41 is provided with a plurality of second air flow holes 41a which pass through the cooling section 41 in the length direction. The second air flow holes 41a can extend the flow path of the airflow and increase the contact area between the airflow and the cooling section 41, thereby improving the heat exchange efficiency between the airflow and the cooling section 41, thereby reducing the temperature of the aerosol during the flow process, reducing the chance of the aerosol burning the mouth, and improving the user experience.

[0126] Filter segment 42 is provided with a plurality of micropores, at least some of which are interconnected to form micro-airways that extend through filter segment 42 along its length, allowing airflow to pass through filter segment 42. The provision of micropores increases the contact area between filter segment 42 and airflow, enabling filter segment 42 to better absorb impurities entrained in the airflow, thereby improving the user experience.

[0127] Micropores are pores in a microscopic sense.

[0128] The material of the cooling section 41 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, and acrylic fiber materials.

[0129] The material of the filter section 42 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, and acrylic fiber materials.

[0130] The materials of the cooling section 41 and the filtering section 42 may be the same or different.

[0131] Understandably, see Figure 2 and Figure 4 The cooling section 41 is arranged between the filtering section 42 and the medium section 20 to improve the filtering effect of the filtering section 42.

[0132] In some embodiments, the functional section 40 includes two cooling sections 41, which are disposed within the coating 10 and located on one side of the proximal lip end of the dielectric section 20 along the longitudinal direction. Providing multiple cooling sections 41 can achieve a better cooling effect and enhance the user experience.

[0133] In some embodiments, the functional segment 40 includes two filter segments 42 . The two filter segments 42 are disposed in the cover layer 10 and located on one side of the proximal lip end of the medium segment 20 along the length direction.

[0134] By adjusting the number and size of the second airway holes 20a and the micro holes, the purpose of adjusting the suction resistance can be further achieved.

[0135] It is understandable that the functional segment 40 and the dielectric segment 20 may be in contact with each other along the length direction, or may be spaced apart along the length direction.

[0136] by Figure 2In the illustrated embodiment, the support member 30 has a first airflow hole 30a. When the media segment 10 is heated, external airflow, such as air, can enter the interior of the media segment 20 through the first airflow hole 30a and diffuse. The media segment 20 has micropores, which are at least partially interconnected and connected to the airway hole 20a. Aerosols generated by the media of the media segment 10 surrounding the airway hole 20a (i.e., the portion of the media segment 20 exposed to the airway hole 20a) directly enter the airway hole 20a, while aerosols generated by other parts of the media segment 20 (i.e., the portion of the media segment not exposed to the airway hole 20a) can be collected into the airway hole 20a through the micropores. Thus, during the inhalation process, air entering through the first airflow hole 30a can entrain the aerosol collected in the first airway hole 10a to flow to the second airflow hole 41a of the cooling section 41, and finally enter the user's mouth after being filtered by the filter section 42.

[0137] In some embodiments, see Figure 8 and Figure 9 The dielectric segment 20 and the functional segment 40 are at least partially spaced apart to form a first cavity 40a. The first cavity 40a increases the contact area between the airflow from the dielectric segment 20 and the aerosol-generating article, thereby achieving a better cooling effect. At the same time, direct contact between the functional segment 40 and the dielectric segment 20 is avoided, thereby reducing the probability of aerosol deposition on the end surfaces of the functional segment 40 and the dielectric segment 20, and reducing aerosol loss during transmission.

[0138] In some embodiments, see Figure 9 and Figure 10 The functional section 40 is a two-section combined structure, and the two sections of the combined structure are spaced apart to form a third cavity 40c.

[0139] The two-stage combination structure means that the functional section 40 includes two filtering sections 42; or, two cooling sections 41; or, has both one filtering section 42 and one cooling section 41.

[0140] The third cavity 40c can increase the contact area between the airflow and the aerosol-generating product, thereby achieving a better cooling effect; at the same time, it avoids direct contact between the various segments in the functional segment 40, thereby reducing the probability of aerosol deposition on the end faces of each segment and reducing the loss of aerosol during transmission.

[0141] In some embodiments, see Figure 9 The cooling section 41 is spaced apart from the medium section 20 and the filtering section 42 along the length direction.

[0142] In some embodiments, see Figure 11The covering layer 10 protrudes from the end surface of the functional segment 40 on the side away from the dielectric segment 20 to form a second cavity 40b on the air outlet side of the functional segment 40 to improve the cooling effect of the airflow and at the same time reduce the suction resistance and improve the user experience.

[0143] In some embodiments, see Figure 1 and Figure 2 The media segment 20, support member 30, cooling segment 41, and filter segment 42 are cylindrical bodies with the same outer diameter and are coaxially arranged. The longitudinal direction is the axial direction of the media segment 20, support member 30, cooling segment 41, and filter segment 42. Thus, the cross-sections perpendicular to the longitudinal directions of the media segment 20, support member 30, cooling segment 41, and filter segment 42 are all circular. This, on the one hand, helps reduce the likelihood of stress concentration and, at the same time, provides support for the coating layer 10, thereby improving the structural strength of the aerosol-generating article and reducing the likelihood of damage during use. On the other hand, it helps improve the consistency of the production process of the media segment 20, support member 30, cooling segment 41, and filter segment 42, thereby increasing production efficiency and reducing costs.

[0144] An embodiment of the present invention also provides an aerosol generating system, which includes an aerosol generating device and an aerosol generating product according to any of the aforementioned embodiments. The aerosol generating device includes a heating element, which is used to heat the medium segment 20 to generate an aerosol. The airflow enters from one end of the aerosol generating product along the length direction, passes through the support member 30, enters the medium segment 20 from the distal lip end of the medium segment 20, and is discharged from the proximal lip end of the medium segment 20 entrained with the aerosol.

[0145] The specific form of the heating element is not limited. For example, the heating element is a resistor / electromagnetic heating wire / sheet / needle / tube, and the heating element is attached to the coating layer 10. After the heating element is turned on, it transfers heat to the coating layer 10, and the coating layer 10 then transfers heat to the medium segment 20 to enable the aerosol-generating matrix to generate aerosol; for another example, the heating element is an infrared / microwave / laser heating device, and the laser heating device irradiates high-energy infrared rays / microwaves / laser to the coating layer 10 to heat up the coating layer 10, and the coating layer 10 then transfers heat to the medium segment 20 to enable the aerosol-generating matrix to generate aerosol.

[0146] It will be appreciated that the aerosol-generating article is loaded into the aerosol-generating device so that the heating element can heat the aerosol-generating article, and after the aerosol-generating substrate in the aerosol-generating article is exhausted, the aerosol-generating article is removed from the aerosol-generating device and replaced with a new aerosol-generating article.

[0147] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction.

[0148] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An aerosol generating product, characterized in that include: A medium segment, wherein at least one airway hole is provided inside the medium segment, and the airway hole passes through at least one end of the medium segment, and the medium segment is used to be heated to generate aerosol; A support member, located at the distal lip end of the medium segment along the length direction, and used to cooperate with the medium segment stopper; The coating layer is coated on the outer sides of the medium segment and the support member along the length direction.

2. The aerosol-generating article according to claim 1, wherein The distal lip end of the media segment along the length direction has a first end surface, and the support member is used to cooperate with the first end surface stopper.

3. The aerosol-generating article according to claim 1, wherein The support member comprises a cylinder, and the outer circumferential surface of the cylinder and the outer circumferential surface of the medium segment are both in contact with the inner circumferential surface of the cladding layer.

4. The aerosol-generating article according to claim 3, wherein: The wall thickness of the cylinder is not less than 5 mm.

5. The aerosol-generating article according to claim 3, wherein: The support member includes a stopper, which is arranged inside the cylinder and connected to the cylinder.

6. An aerosol generating article according to claim 5, characterized in that The blocking member is in the shape of a rib, and there are multiple blocking members, one end of the multiple blocking members is connected to each other, and the other end is connected to the cylinder, and the multiple blocking members are radially distributed around the center of the cylinder.

7. The aerosol-generating article of claim 5, wherein: The blocking member is a fiber filtering structure, which is filled in the inner space of the cylinder and fixed to the inner wall of the cylinder.

8. The aerosol-generating article of claim 5, wherein: The blocking member is in the shape of a screen.

9. The aerosol-generating article of claim 1, wherein: The support member is an integrated structure and is columnar. The support member is provided with a plurality of first air flow holes extending along its length direction. The medium segment is provided with a plurality of airway holes. The airway holes at least pass through the medium segment toward one end of the support member, and the first air flow holes are connected to the airway holes.

10. The aerosol-generating article of claim 1, wherein: The supporting member is a membrane structure with air permeability function.

11. The aerosol-generating article of claim 1 , wherein: The aerosol generating article comprises a functional section, wherein the functional section comprises a cooling section and a filtering section, wherein the cooling section and the filtering section are arranged in the coating layer and are located on one side of the proximal lip end of the medium section along the length direction; And\or, the functional section includes two cooling sections, the two cooling sections are arranged in the coating layer and located on one side of the lip end of the medium section along the length direction; And\or, the functional segment includes two filter segments, and the two filter segments are arranged in the coating layer and located on one side of the proximal lip end of the medium segment along the length direction.

12. An aerosol-generating article according to claim 11, characterized in that The medium segment and the functional segment are at least partially spaced apart to form a first cavity; and\or, the housing protrudes from an end surface of the functional section on a side away from the medium section to form a second cavity on the gas outlet side of the functional section; And\or, the functional section is a two-section combined structure, and the two-section combined structure is spaced apart to form a third cavity.

13. The aerosol-generating article of claim 11, wherein: The medium segment, the support member, the cooling segment and the filtering segment are cylinders with the same outer diameter and are coaxially arranged, and the length direction is the axial direction of the medium segment, the support member, the cooling segment and the filtering segment.

14. An aerosol generating system, characterized in that: The aerosol generating system comprises an aerosol generating device and the aerosol generating article according to any one of claims 1 to 13, wherein the aerosol generating device comprises a heating element for heating the medium segment to generate an aerosol.

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