Aerosol-generating substrate and aerosol-generating article

Abstract

The present application relates to the technical field of aerosol generating products, and provides an aerosol generating substrate and an aerosol generating product. The aerosol generating substrate includes a plurality of monomers. At least some of the monomers are different in at least one parameter. Each parameter includes the material of the monomers, the quantity of airways, the shape of the airways, the hydraulic diameter of the airways, the cross-sectional area of the airways, and the arrangement of the airways. The airways penetrate through at least one end of each monomer in a length direction. The quantity of airways is a natural number. At least some of the monomers are different in at least one parameter, which can provide richer flavors. The materials of the monomers and the compositions of the airways are adjusted, so as to adjust aerosol compositions generated by the aerosol generating substrate and heat accumulation in a heating process, thereby improving aerosol aroma and release consistency.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is proposed and claims priority to Chinese Patent Application No. 202310181684.9 filed on February 20, 2023, which is incorporated by reference in its entirety.TECHNICAL FIELD

[0002] The present application relates to the technical field of aerosol generating products, and in particular to, an aerosol generating substrate and an aerosol generating product.BACKGROUND

[0003] Aerosol generating products include an aerosol generating product that generates an aerosol by ignition and an aerosol generating product that generates an aerosol by heating not burning. A typical heat-not-burn aerosol generating product includes an aerosol generating substrate that includes a tobacco material, an aroma material, and / or an atomizing agent and that may be volatilized during heating to generate an aerosol. The aerosol generating product is heated by an external heat source until the aerosol generating substrate is just heated to output an aerosol. The aerosol generating substrate does not burn, but the aerosol generating substrate has an atomizing agent. During use, the aerosol generating substrate is heated at a high temperature to release the atomizing agent, thus forming an aerosol.

[0004] In the related art, composition components of parts of the aerosol generating substrate are the same. The parts of the aerosol generating substrate have no difference or have a very small difference. The aerosol generated by the aerosol generating substrate has a single flavor. Off-flavors are easily generated after the aerosol generating substrate is heated for a long time, which affects the inhalation experience of a user.SUMMARY

[0005] In view of this, embodiments of the present application aim to provide an aerosol generating substrate and an aerosol generating product, which can improve a flavor.

[0006] To achieve the above objectives, an embodiment of the present application provides an aerosol generating substrate, including a plurality of monomers. At least some of the monomers are different in at least one parameter. Each parameter includes the material of the monomers, the quantity of airways, the shape of the airways, the hydraulic diameter of the airways, the cross-sectional area of the airways, and the arrangement of the airways. The airways penetrate through at least one end of each monomer in a length direction, The quantity of airways is a natural number.

[0007] In some embodiments, the plurality of monomers are superposed one by one in the length directions of the monomers.

[0008] In some embodiments, the monomers are provided with the airways; and at least one airway of one of two adjacent monomers and at least one airway of the other monomer are at least partially aligned and communicated.

[0009] In some embodiments, the plurality of monomers are sleeved one by one in an inside-to-outside direction.

[0010] In some embodiments, a gap is reserved between two adjacent monomers in the inside-to-outside direction.

[0011] In some embodiments, the plurality of monomers are spliced one by one in a circumferential direction.

[0012] In some embodiments, the airways include air holes; and the air holes are provided inside the monomers.

[0013] In some embodiments, the air holes penetrate through the two end surfaces of the monomers in the length directions.

[0014] In some embodiments, the air holes penetrate through one end surface of each monomer in the length direction and the circumferential surface of the monomer.

[0015] In some embodiments, the air holes are linear holes extending along a straight line.

[0016] In some embodiments, the center line of each linear hole is intersected with the central axis of each monomer in the length direction.

[0017] In some embodiments, a plurality of linear holes are formed in a single monomer; and the distance between the first ends of the linear holes in the single monomer and the central axis of the monomer is greater than the distance between the second ends of the linear holes and the central axis of the monomer.

[0018] In some embodiments, the center line of each linear hole is parallel to the central axis of each monomer in the length direction.

[0019] In some embodiments, the air holes are curved holes; and the hole segment of each curved hole is at least partially in the curve shape with the curvature not equal to 0.

[0020] In some embodiments, the curved holes are in the spiral line shape.

[0021] In some embodiments, 1 to 730 air holes are formed in a single monomer.

[0022] In some embodiments, the airways include grooves; and the grooves are formed in the circumferential surfaces of the monomers.

[0023] In some embodiments, at least one monomer is formed with a plurality of airways, and the shapes of at least some of the airways of a single monomer are the same.

[0024] In some embodiments, the airways are formed in the monomers, and the shape of at least one airway of the monomers is different.

[0025] In some embodiments, 2 to 30 monomers are included.

[0026] The present application further provides an aerosol generating product, including: the aerosol generating substrate; a functional section, arranged at one end of the aerosol generating substrate in a length direction and at least including a filtering section for filtering an aerosol; and an outer wrapping layer, wrapping around the outer periphery of the functional section and the outer periphery of the aerosol generating substrate.

[0027] In some embodiments, the functional section further includes a cooling section; and the cooling section is located between the filtering section and the aerosol generating substrate.

[0028] According to the aerosol generating substrate provided in the embodiments of the present application, at least some of the monomers are different in at least one parameter, which can provide richer flavors. The different materials of the monomers can implement combinations of different flavors and enrich the inhalation experience. Since the flow velocity of an air flow is related to extraction of an aerosol, the quantities of airways in the monomers, the shapes of the airways, the hydraulic diameters of the airways, the cross-sectional areas of the airways, and / or the arrangements of the airways are different. The flow velocity and / or the flow rate of the air flow can be adjusted, thereby adjusting the aerosol extraction rate. In this way, the materials of the monomers and the compositions of the airways are adjusted, so as to adjust aerosol compositions generated by the aerosol generating substrate and heat accumulation in a heating process, thereby improving aerosol aroma and release consistency.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a schematic structural diagram of a first type of aerosol generating product according to an embodiment of the present application; FIG. 2 is a schematic sectional view of the aerosol generating product shown in FIG. 1; FIG. 3 is a schematic structural diagram of a second type of aerosol generating product according to an embodiment of the present application; FIG. 4 is a schematic structural diagram of a third type of aerosol generating product according to an embodiment of the present application; FIG. 5 is a schematic structural diagram of a fourth type of aerosol generating product according to an embodiment of the present application; FIG. 6 is a schematic structural diagram of a first type of aerosol generating substrate according to an embodiment of the present application; FIG. 7 is a perspective view of the aerosol generating substrate shown in FIG. 6; FIG. 8 is a perspective view of a second type of aerosol generating substrate according to an embodiment of the present application; FIG. 9 is a perspective view of a third type of aerosol generating substrate according to an embodiment of the present application; FIG. 10 is a perspective view of a fourth type of aerosol generating substrate according to an embodiment of the present application; FIG. 11 is a schematic structural diagram of a fifth type of aerosol generating substrate according to an embodiment of the present application; FIG. 12 is a perspective view of the fifth type of aerosol generating substrate shown in FIG. 11; FIG. 13 is a perspective view of a sixth type of aerosol generating substrate according to an embodiment of the present application; FIG. 14 is a perspective view of a seventh type of aerosol generating substrate according to an embodiment of the present application; FIG. 15 is a perspective view of an eighth type of aerosol generating substrate according to an embodiment of the present application; FIG. 16 is a perspective view of a ninth type of aerosol generating substrate according to an embodiment of the present application; FIG. 17 is a perspective view of a tenth type of aerosol generating substrate according to an embodiment of the present application; FIG. 18 is a perspective view of an eleventh type of aerosol generating substrate according to an embodiment of the present application; FIG. 19 is a schematic structural diagram of a twelfth type of aerosol generating substrate according to an embodiment of the present application; FIG. 20 is a perspective view of the twelfth type of aerosol generating substrate shown in FIG. 19; FIG. 21 is a schematic structural diagram of a thirteenth type of aerosol generating substrate according to an embodiment of the present application; FIG. 22 is a schematic sectional view of a fourteenth type of aerosol generating substrate according to an embodiment of the present application; FIG. 23 is a schematic sectional view of a fifteenth type of aerosol generating substrate according to an embodiment of the present application; FIG. 24 is a schematic sectional view of a sixteenth type of aerosol generating substrate according to an embodiment of the present application; FIG. 25 is a schematic sectional view of a seventeenth type of aerosol generating substrate according to an embodiment of the present application; and FIG. 26 is a schematic structural diagram of an eighteenth type of aerosol generating substrate according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] It should be noted that, embodiments and technical features in the embodiments in the present application may be combined without conflicts. Detailed descriptions in specific implementations should be understood as explanatory notes for the purpose of the present application and should not be regarded as improper limitations on the present application.

[0031] An embodiment of the present application provides an aerosol generating substrate 10. The aerosol generating substrate 10 is configured to be heated to generate an aerosol.

[0032] As an example, the aerosol generating substrate 10 may be applicable to generating an aerosol by heating and burning. The aerosol generating substrate 10 may alternatively be applicable to generating an aerosol by heating without burning. That is, the aerosol generating substrate 10 is heated to be below an ignition point to generate an aerosol. In the process of generating the aerosol, the aerosol generating substrate 10 does not burn.

[0033] Referring to FIG. 6 to FIG. 26, the aerosol generating substrate 10 includes a plurality of monomers 11, and at least some of the monomers 11 are different in at least one parameter. Each parameter includes the material of the monomer 11, the quantity of airways 11a, the shape of each airway 11a, the hydraulic diameter of each airway 11a, the cross-sectional area of each airway 11a, and the arrangement of the airways 11a. The airways 11a penetrate through at least one end of each monomer 11 in a length direction, The quantity of airways 11a is a natural number.

[0034] The airways 11a are configured to aggregate and circulate the aerosols. As an example, in an embodiment, referring to FIG. 23 and FIG. 24, each airway 11a penetrates through one end of each monomer 11 in the length direction, and the other end of the airway 11a is closed. The airways 11a may play a role of adjusting a heating rate of the monomers 11 in a heating process, and may play a role in temporarily storing an aerosol and accelerating aerosol precipitation. In a non-inhaled state, an aerosol may be released into the airways 11a for storage. During inhalation, since an air flow at the lip-close sides of the monomers 11 has the large flow velocity, namely, the low air pressure, aerosols stored in the airways 11a will be precipitated for inhalation by a user. In the inhalation process, the user may have free time or rest time. Within this free time, a condition is provided to replenish aerosols into the airways 11a. When the free time is too long, the aerosols in the airways 11a may overflow into the monomers 11, thereby ensuring uniform aerosol vectors in the airways 11a and ensuring consistent inhalation of the user.

[0035] As an example, in another embodiment, referring to FIG. 6 to FIG. 22, each airway 11a penetrates through the two opposite ends of each monomer 11 in the length direction. The air flow may flow from one end of the monomer 11 to the other end of the monomer 11. In this way, air flow formed by air carrying the aerosols can flow more smoothly and has lower flowing resistance, so that inhalation resistance in an inhalation process can be reduced significantly, and the inhalation experience can be improved.

[0036] The natural number includes zero and positive integers. That is, in some embodiments, referring to FIG. 19, the monomers 11 may have no airways 11a. In some other embodiments, referring to FIG. 6 to FIG. 18, each monomer 11 includes one or more airways 11a.

[0037] It should be noted that, in the present application, two or more airways are included.

[0038] As an example, in some embodiments, at least some of the monomers 11 are different in one parameter. The parameter may be one of the material of the monomers 11, the quantity of airways 11a, the shape of the airways 11a, the hydraulic diameter of the airways 11a, the cross-sectional area of the airways 11a, and the arrangement of the airways 11a. For example, the materials of at least some of the monomers 11 are different. For all the monomers 11, the quantities of airways 11a, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, and the arrangements of the airways 11a are all the same. Three monomers 11 are taken as an example. The materials of two monomers 11 are different from the material of the other monomer 11. For the three monomers 11, the quantities of airways 11a, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, and the arrangements of the airways 11a are all the same.

[0039] In some other embodiments, at least some of the monomers 11 are different in a plurality of parameters. The parameters may be at least two of the material of the monomers 11, the quantity of airways 11a, the shape of the airways 11a, the hydraulic diameter of the airways 11a, the cross-sectional area of the airways 11a, and the arrangement of the airways 11a. For example, at least some of the monomers 11 are different in the quantities of airways 11a and the shapes of the airways 11a. For all the monomers 11, the materials, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, and the arrangements of the airways 11a are all the same.

[0040] The material of each monomer 11 includes compositions and proportions of the compositions.

[0041] The shape of each airway 11a includes a cross-sectional shape of the airway 11a and a space shape of the airway 11a. A cross section is a plane perpendicular to the length direction of the monomer 11. The cross-sectional shape of the airway 11a means a shape presented by cutting away a single airway 11a along the cross section.

[0042] The hydraulic diameter means a ratio of four times of the flow cross-sectional area to the perimeter. A flow cross section is a cross section taken from a flow line cluster perpendicular to a fluid. For example, if the cross-sectional shape of the airway 11a is a right quadrangle, the hydraulic diameter is a ratio of four times of the cross-sectional area of the right quadrangle-shaped airway 11a to the perimeter of the right quadrangle. For another example, if the cross-sectional shape of the airway 11a is a circle, the hydraulic diameter is the diameter of the circular airway 11a.

[0043] The arrangement of the airways 11a means the distribution form of the airways 11a on the monomer 11.

[0044] According to the aerosol generating substrate 10 provided in the embodiments of the present application, at least some of the monomers 11 are different in at least one parameter, which can provide richer flavors. The different materials of the monomers 11 can implement combinations of different flavors and enrich the inhalation experience. Since the flow velocity of an air flow is related to extraction of an aerosol, the quantities of airways 11a in the monomers, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, and / or the arrangements of the airways 11a are different. The flow velocity and / or the flow rate of the air flow can be adjusted, thereby adjusting the aerosol extraction rate. In this way, the materials of the monomers 11 and the compositions of the airways 11a are adjusted, so as to adjust aerosol compositions generated by the aerosol generating substrate 10 and heat accumulation in a heating process, thereby improving aerosol aroma and release consistency.

[0045] The aerosol generating substrate 10 provided in this embodiment of the present application is applied to an aerosol generating product. Referring to FIG. 1 to FIG. 5, the aerosol generating product includes the aerosol generating substrate 10, a functional section 20, and an outer wrapping layer 30. The functional section 20 is arranged at one end of the aerosol generating substrate 10 in a length direction. The functional section 20 includes a filtering section 21 for filtering an aerosol. The outer wrapping layer 30 wraps around the outer periphery of the functional section 20 and the outer periphery of the aerosol generating substrate 10.

[0046] The filtering section 21 is configured to filter an aerosol generated by the aerosol generating substrate 10.

[0047] The aerosol generating product is configured to allow a user to inhale the aerosol generated by the aerosol generating substrate 10. For example, the user may inhale the filtered aerosol by holding the filtering section 21 in the mouth. Under the action of a negative inhalation pressure, the aerosol generated by the aerosol generating substrate 10 is conveyed to the filtering section 21 through the airways 11a.

[0048] In some embodiments, referring to FIG. 2, the functional section 20 may be provided with the filtering section 21 only.

[0049] In some other embodiments, referring to FIG. 3, the functional section 20 further includes a cooling section 22, and the cooling section 22 is located between the filtering section 21 and the aerosol generating substrate 10. The cooling section 22 is configured to cool the aerosol before the filtering section 21 filters the aerosol. The cooling section 22 can improve a phenomenon of "mouth burning" when a user inhales the aerosol.

[0050] The outer wrapping layer 30 includes, but is not limited to, one or a combination of more materials such as fiber paper, a metal foil, a metal foil composite fiber paper, polyethylene composite fiber paper, polyethylene (PE), and polybutylene adipate terephthalate (PBAT).

[0051] A cooling material employed by the cooling section 22 includes, but is not limited to, one or a combination of more materials such as PE, polylactic acid (PLA), PBAT, polypropylene (PP), a cellulose acetate fiber, and an acrylic acid fiber.

[0052] A filtering material employed by the filtering section 21 includes, but is not limited to, one or a combination of more materials such as PE, PLA, PBAT, PP, a cellulose acetate fiber, and an acrylic acid fiber.

[0053] The material of the cooling section 22 and the material of the filtering section 21 may be the same or different.

[0054] The monomer 11 is in a solid state. The compositions of the monomer 11 are not limited herein. As an example, in one embodiment, the compositions of the monomer 11 may include a plant component, an additive component, an aerosol producing agent component, a binder component, and the like.

[0055] In one embodiment, the plant component is one or a combination of more of powder obtained by crushing a tobacco material, a tobacco fragment, a tobacco stem, tobacco powder, and an aroma plant, the like. The plant component is configured to generate an aerosol having for example nicotine when the plant component is heated.

[0056] In one embodiment, the additive component may be one or a combination of more of an inorganic filler, a lubricating agent, and an emulsifying agent. The inorganic filling agent includes one or a combination of more of heavy calcium carbonate, light calcium carbonate, zeolites, attapulgite, talc powder, and diatomite. The inorganic filler can provide a skeleton support for the plant component. Meanwhile, the inorganic filler also has micro-pores, which can increase the porosity of a wall material after the plant component is formed, thereby improving the aerosol release rate.

[0057] The lubricating agent includes one or a combination of more of candle wax, Brazilian palm wax, lac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricating agent can improve the mobility of particles, reduce the friction between the particles, make the overall density of particle distribution more uniform, and also reduce a load on mold forming, thereby reducing the wear on a mold.

[0058] The emulsifying agent includes one or a combination of more of polyglycerol fatty acid ester, Tween-80, and polyvinyl alcohol. The emulsifying agent (also referred to as a surfactant) can reduce the interfacial tensions of water-soluble and water-insoluble components in a mixed system, and form a stronger film on the surfaces of droplets or an electrical double layer on the surfaces of the droplets due to charges provided by the emulsifying agent, to prevent the droplets from aggregating with each other and maintaining uniform emulsion. Emulsifying and homogenizing the two incompatible components can improve the quality consistency of the product.

[0059] The function of the aerosol producing agent component is to generate a large amount of steam during heating, thereby increasing the aerosol amount of an aerosol generating product. In one embodiment, the aerosol producing agent component may include, for example: monohydric alcohol (such as menthol); polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); ester of polyhydric alcohol (such as monoglyceride, diglyceride, or triacetin); monocarboxylic acid; and one or a combination of more of polycarboxylic acid (such as lauric acid and myristic acid) or fatty ester of polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso erythritol, a glycerol diacetate mixture, diethyl octanoate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillic acid, glyceryl tributoate, and lauryl acetate).

[0060] In one embodiment, the binder component is a natural plant extract: non-ionized modified viscous polysaccharide, including one or a combination of more of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The binder is used to bond the particles together, without looseness. In addition, the water resistance of the aerosol generating substrate 10 is improved. The binder is harmless to the human body and has the health benefit.

[0061] In one embodiment, the plurality of monomers 11 are independent of each other. Being independent of each other means that each monomer 11 is produced and manufactured separately.

[0062] In one embodiment, the plurality of monomers 11 may be connected to form a whole. For example, the plurality of monomers 11 may be connected to form a whole by compounding, adhesion, warping, or interference connection.

[0063] In one embodiment, the monomer 11 is of an integrally formed structure. For example, the monomers 11 may be a one-piece structure formed by a process such as injection, compression, or extrusion. Extrusion forming means a processing method in which a raw material mixture is added into an extruder, and the raw material mixture is heated to be plasticized by the action between a barrel and a screw rod of the extruder, is pushed forwards by the screw rod, and is continuously prepared into products with various cross sections or semi-products through a mold at a material outlet of the extruder. The aerosol substrate formed by extrusion is strip-shaped. In this way, the monomers 11 are all integrated media after inhalation during heating or after the heating is stopped, so that the problem of disintegration and falling is not likely to occur, thereby solving the problems of looseness of a thin sheet, falling of a filiform component and a particle component, and difficulty in cleaning in thin-sheet-like, dispersed particle-like, and filiform aerosol generating substrates 10 in the related art.

[0064] In one embodiment, referring to FIG. 6 to FIG. 18, the plurality of monomers 11 are superposed one by one in the length directions of the monomers 11. The air flow flows in the length directions of the monomers 11 from the far-lip side to the close-lip side. The plurality of monomers 11 are superposed one by one in the length directions, and aerosols generated by the monomers 11 on the far-lip side are recombined with aerosols generated by the monomers 11 on the close-lip side, so that the overall aerosol flavor is more uniform and stronger.

[0065] It should be understood that the far-lip side is the side far away from the lips of a user, and the close-lip side is opposite to the far-lip side. It should be noted that, in this embodiment of the present application, the length direction does not specifically a direction in which the appearance contour of the monomer 11 is the longest. In a case that the aerosol generating product has the functional section 20, the arrangement direction of the functional section 20 and the aerosol generating substrate 10 is consistent with the length direction. A direction in which the aerosol generating product is inserted into a heater and a direction in which the aerosol generating product is removed from the heater are both parallel to the length direction. The length of each monomer 11 in the length direction may be greater than, less than, or the same as the length in other directions.

[0066] For example, when the appearance contour of each monomer 11 is cylindrical, the length direction is the axial direction of the monomer 11. It should be noted that, even when the axial length of each monomer 11 is less than its diameter, the length direction of the monomer 11 is still the axial direction. For another example, when the appearance contour of each monomer 11 is cuboid, the length direction is still the direction defined above, that is, the arrangement direction of the functional section 20 and the aerosol generating substrate 10, or the direction in which the aerosol generating product is placed or removed. The length direction of the aerosol generating substrate 10 may be any direction along the length, the width, and the height of the cuboid.

[0067] When each monomer 11 is used alone, that is, when it is not combined with the functional section 20, the length direction is perpendicular to a distance between the two ends of the monomer 11. For example, when the monomer 11 is cylindrical, the length direction is perpendicular to a distance between the two end surfaces. For example, when the monomer 11 is columnar, with a triangular, polygonal, fan-shaped, oval, or elliptical cross section, the length direction is the axial direction. When the monomer 11 is cuboid, the length direction of the monomer 11 may be any direction along the length, the width, and the height of the cuboid.

[0068] The aerosol generating product is used in conjunction with an aerosol generating device with a heater. Specifically, the heater heats and atomizes the aerosol generating substrate 10 to generate an aerosol.

[0069] The heating modes of the heater include but are not limited to resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, and the like.

[0070] As an example, in one embodiment, the heater includes a plurality of independently controlled heating elements which are arranged in a spacing manner in the length direction. Each heating element correspondingly heats one monomer 11. The heating elements can provide thermal energy. Since the heating elements selectively heat the monomers 11, aerosols of different monomers 11 can be directionally selectively released. For example, aerosols with different flavors can be directionally selectively released, and odors generated by repeated heating can be avoided, thereby ensuring that the aerosol inhaled in each puff is fresh and improving the inhalation consistency.

[0071] In one embodiment, the heater includes one heating element, and the heating element and the aerosol generating substrate 10 may move relative to each other in the length direction. In this way, since one heating element selectively heats the monomers 11, aerosols of different monomers 11 can be directionally selectively released, thereby reducing the quantity of heating elements and saving structural members.

[0072] A power source of the heating element is not limited. For example, in one embodiment, the heating element is manually operated. That is, the heating element is moved by a hand. In another embodiment, the electronic atomization device includes a driving source that drives the heating element or the aerosol generating substrate 10 to move.

[0073] The driving source includes but is not limited to a motor.

[0074] In one embodiment, referring to FIG. 6 to FIG. 18, the monomers 11 are provided with airways 11a. At least one airway 11a of one of two adjacent monomers 11 is at least partially aligned and communicated with at least one airway 11a of the other monomer 11. That is, for two adjacent monomers 11, at least one part airway 11a of one monomer 11 is aligned and communicated with the airway 11a of the other monomer 11. In other words, in the length direction of each monomer 11, two airways 11a are located in two adjacent monomers 11. The projection of the port of one airway 11a on the adjacent port of the other airway 11a at least partially overlaps. In this way, in the length direction of the monomer 11, the aerosol in one airway 11a can smoothly enter the other airway 11a. The air flow has low flowing resistance, and the inhalation resistance during inhalation by a user is low. This has the effects of adjusting and improving aerosols, to make aerosol release more uniform and more stable.

[0075] In one embodiment, referring to FIG. 7, FIG. 11 to FIG. 13, and FIG. 15 to FIG. 18, the quantities of the airways 11a of the monomers 11 are equal, and the airways 11a of the monomers 11 are aligned and communicated one by one. As an example, the cross-sectional shapes and cross-sectional areas of the ports of the airways 11a of the monomers 11 are the same, and the ports of the airways 11a of the monomers 11 are aligned and communicated one by one. In this way, the air flow in the airways 11a of the monomers 11 on the far-lip side can directly enter the aligned and communicated airways 11a of the monomers 11 on the close-lip side, so that the air flow loss is small.

[0076] In one embodiment, referring to FIG. 8, FIG. 9, and FIG. 10, the quantities of the airways 11a in two adjacent monomers 11 are not equal, and each airway 11a of one monomer 11 is aligned and communicated with the plurality of airways 11a of the other monomer 11. As an example, for two adjacent monomers 11, the cross-sectional area of the port of each airway 11a of one monomer 11 is larger than the cross-sectional area of the port of each airway 11a of the other monomer 11, and the ports of the plurality of the airways 11a with the smaller cross-sectional areas are aligned with the port of one airway 11a with the larger cross-sectional area. In this way, the air flow in the airways 11a with the smaller cross-sectional areas can be gathered in the airway 11a with the larger cross-sectional area, or the air flow in the airway 11a with the larger cross-sectional area can be dispersed into the airways 11a with the smaller cross-sectional areas.

[0077] In one embodiment, referring to FIG. 19 to FIG. 25, the plurality of monomers 11 are sleeved one by one in an inside-to-outside direction. In this way, it is convenient to enable the monomers 11 to respectively release the aerosols over time based on different heating modes. For example, heat is transferred from the center to the edge over time based on a center heating mode, or heat is transferred from the edge to the center over time based on a circumferential heating mode. This can adjust the flavors of the aerosols released by the monomers 11 to bring a brand-new inhalation experience to a user.

[0078] It should be noted that, the inside means a direction close to the center of the aerosol generating substrate 10, while the outside is opposite to the inside.

[0079] In one embodiment, referring to FIG. 19 to FIG. 25, a gap 11b is reserved between two adjacent monomers 11 in the inside-to-outside direction. The gap 11b may be empty, meaning that the gap 11b is not filled with a solid material, but filled with air. Air is a poor conductor of heat, and the gap 11b can provide heat insulation. In a heating process, after one monomer 11 reaches the release temperature and releases an aerosol, a next medium may be gradually heated. The monomers 11 may respectively release the aerosols to reduce the impact of the monomers 11 that is releasing the aerosols on the monomers 11 that do not release the aerosols. This means that the monomers 11 that release the aerosols are fresh after a period of time, thereby releasing the specific flavors of the aerosols layer by layer or releasing the single flavor layer by layer. The flavors of the aerosols can be adjusted or the aerosols are purer, thereby reducing the impact of the previously heated monomers 11 on the release of aerosols by the subsequently heated monomers 11.

[0080] In one embodiment, referring to FIG. 26, the plurality of monomers 11 are spliced one by one in a circumferential direction. In this way, it is convenient to enable the monomers 11 to respectively release the aerosols over time based on different heating modes to directionally selectively release aerosols with different flavors and further avoid odors generated by repeated heating on the aerosol generating substrate 10, thereby ensuring that the aerosol inhaled on each puff is fresh and improving the inhalation consistency.

[0081] As an example, in one embodiment, the heater includes a plurality of independently controlled heating elements which are arranged in a spacing manner around the circumferential direction of the aerosol generating substrate 10. Each heating element correspondingly heats one monomer 11. Since the heating elements selectively heat the monomers 11, aerosols of different monomers 11 can be directionally selectively released. For example, aerosols with different flavors can be directionally selectively released, and odors generated by repeated heating can be avoided, thereby ensuring that the aerosol inhaled in each puff is fresh and improving the inhalation consistency.

[0082] As an example, in one embodiment, the heater includes one heating element. The heating element and the aerosol generating substrate 10 may rotate relative to each other in the circumferential direction of the aerosol generating substrate 10. In this way, while reducing the quantity of heating elements and saving structural members, different monomers 11 are respectively heated.

[0083] As an example, in one embodiment, the heating element or the aerosol generating substrate 10 is manually operated. That is, the heating element or the aerosol generating substrate 10 is manually operated to rotate. In another embodiment, the driving source drives the heating element or the aerosol generating substrate 10 to rotate.

[0084] In one embodiment, referring to FIG. 7 to FIG. 26, the airways 11a include air holes 111a, and the air holes 111a are provided inside the monomers 11. The air holes 111a are configured to aggregate and circulate the aerosols. The air holes 111a can enlarge the inner surface areas of the monomers 11, thereby improving the aerosol extraction rate.

[0085] In one embodiment, referring to FIG. 7 to FIG. 10, FIG. 13, FIG. 25, and FIG. 26, the air holes 111a penetrate through the two end surfaces of the monomers 11 in the length directions. In an inhalation process, air enters the air holes 111a from the far-lip sides of the monomers 11 and flows out to the close-lip sides. The air flow can quickly bring away the aerosols in the air holes 111a to accelerate the precipitation of the aerosols and reduce the flowing resistance of the air flow.

[0086] In one embodiment, referring to FIG. 11 and FIG. 12, the air holes 111a penetrate through one end surface of each monomer 11 in the length direction and the circumferential surface of the monomer 11. This design can not only enlarge the contact area between the air flow and the outer surface of a medium, facilitate heat exchange between the air holes 111a and the circumferential surfaces of the monomers 11, and reduce the heat accumulation of the monomers 11, but also facilitate the flowing of the aerosols between the air holes 111a and the circumferential surfaces of the monomers 11 and increase the flow rate of the air flow on the circumferential surfaces of the monomers 11, thereby improving the heating efficiency and the aerosol release uniformity.

[0087] In one embodiment, referring to FIG. 7 to FIG. 14, the air holes 111a are linear holes 1111a extending along a straight line. The linear holes 1111a are easily formed, which can reduce the manufacturing difficulty. The flowing resistance of the air flow inside the linear holes 1111a is low.

[0088] In one embodiment, referring to FIG. 11 to FIG. 14, the center line of each linear hole 1111a is intersected with the central axis of each monomer 11 in the length direction. In this design, the air flow has the longer flow path in the linear holes 1111a, which can prolong the contact duration between the air flow and the wall surfaces of the linear holes 1111a, thereby improving the aerosol extraction rate. It should be noted that, the center line of each air hole 111a is a connecting line of the geometric centers of the flow cross sections of the air hole 111a. For example, the center line of each linear hole 1111a is a connecting line of the geometric centers of the flow cross sections of the linear hole 1111a, and the center line of the linear hole 1111a is a straight line. The central axis of each monomer 11 is a connecting line of the geometric centers of the two end surfaces of the monomer 11 in the length direction. An example in which each monomer 11 is a cylinder is used. The central axis of the monomer 11 is a connecting line of circle centers of the two circular end surfaces of the monomer 11 in the length direction.

[0089] In one embodiment, referring to FIG. 12 and FIG. 13, a plurality of linear holes 1111a are formed in a single monomer 11. The distance between the first ends of the linear holes 1111a in the single monomer 11 and the central axis of the monomer 11 is greater than the distance between the second ends of the linear holes 1111a and the central axis of the monomer 11. That is, the first ends of the plurality of linear holes 1111a are all far away from the central axis of the monomer 11, and the second ends of the plurality of linear holes 1111a are all close to the central axis of the monomer 11. The first ends of the plurality of linear holes 1111a are diverged outwards, while the second ends of the plurality of linear holes 1111a are converged inwards. In this way, the linear holes 1111a can aggregate or diffuse the air flow, thereby providing a user with different inhalation experiences.

[0090] In one embodiment, referring to FIG. 7 to FIG. 10, the center line of each linear hole 1111a is parallel to the central axis of each monomer 11 in the length direction. In this way, the air flow path of the air flow in the linear holes 1111a is short, making it easier for the aerosols to quickly reach the close-lip side.

[0091] In one embodiment, referring to FIG. 15 to FIG. 18, the air holes 111a are curved holes 1112a; and the hole segment of each curved hole 1112a is at least partially in the curve shape with the curvature not equal to 0. The curved holes 1112a can significantly increase the flow path of the air flow to a large extent without significantly increasing the length of the monomer 11. This can prolong the contact duration between the air flow and the wall surfaces of the curved holes 1112a, thereby improving the aerosol extraction rate.

[0092] In one embodiment, referring to FIG. 15 to FIG. 18, the curved holes 1112a are in the spiral line shape. That is, the three-dimensional shape of each curved hole 1112a is the spatial spiral line shape. For example, during the manufacturing of the monomers 11, the monomers 11 are formed through plastic rotation. A connecting line of any point of each spiral line-shaped curved hole 1112a and a starting point has an inclination angle relative to the axis of the curved hole. The spiral line-shaped curved hole 1112a can greatly extend the flow path of the air flow, so that the aerosol is precipitated from the monomer 11 into the curved hole 1112a, to increase the flow velocity of the aerosol in the monomer 11, thereby increasing the impact force of the air flow, implementing uniform mixing of the aerosol, improving the uniformity of the aerosol, and enhancing the inhalation experience of a user.

[0093] In one embodiment, referring to FIG. 17, the axis of each spiral line-shaped curved hole 1112a is parallel to the central axis of the monomer 11 in which the curved hole is located. In another embodiment, referring to FIG. 16, the axis of each spiral line-shaped curved hole 1112a overlaps the central axis of the monomer 11 in which the curved hole is located. This can increase the flowing volume of the air flow inside the monomer 11, increase the flow velocity of the aerosol air flow, and enlarge the contact area between the air flow and a medium, thereby improving the medium heating uniformity and the aerosol release uniformity.

[0094] In one embodiment, 1 to 730 air holes 111a are provided in a single monomer 11. As an example, 1, 2, 5, 10, 15, 20, 25, 100, 200, 250, 300, 400, 600, or 730 air holes 111a are provided in a single monomer 11. In a case that the size of the monomer 11 is constant, a smaller number of air holes 111a reflects a thicker wall between two adjacent air holes 111a, and a larger number of air holes 111a reflects the larger specific surface area of the air holes 111a, the lower flowing resistance of the aerosol inside the monomer 11, and a thinner wall between two adjacent air holes 111a. In a case that the quantity of air holes 111a is less than 1, the flowing resistance inside the monomer 11 is high, leading to the high inhalation resistance, so that it is difficult to extract the aerosol in the monomer 11, and the aerosol utilization rate is reduced. In a case that the quantity of air holes 111a is greater than 730, the wall between two adjacent air holes 111a is too thin, so that the medium quality of the monomer 11 is low, and the aerosol release time is too short. Thus, the heat can be easily dispersed or diffused, and a burning phenomenon easily occurs. In addition, non-uniform release of the aerosol easily occurs in the heating process, such as a non-uniform release phenomenon: in the inhalation process, the release amount of the aerosol is large in the previous two instances of inhalation and the release amount of the aerosol is small in the later instances of inhalation.

[0095] In one embodiment, 4 to 92 air holes 111a are provided in a single monomer 11. Further, 9 to 75 air holes 111a are formed in a single monomer 11. In this design, the structural strength of the monomer 11 is good, which can stably maintain the overall shape. This can not only balance the flowing resistance of the aerosol and the overall quality and heating uniformity of the monomer 11, but also reduce the burning phenomenon and the non-uniform aerosol release phenomenon, thereby enhancing the inhalation experience of a user. Preferably, 9 to 60 air holes 111a are formed in a single monomer 11. In this way, the wall between two adjacent air holes 111a has a moderate thickness; the manufacturing difficulty of the monomer 11 is moderate; the collapse of the air holes 111a during the manufacturing is avoided; and the product yield is improved.

[0096] In one embodiment, referring to FIG. 21 and FIG. 25, the airways 11a include grooves 112a; and the grooves 112a are formed in the circumferential surfaces of the monomers 11. Specifically, the grooves 112a have notches that are opened outwards. As an example, the partial regions of the circumferential surfaces of the monomers 11 are recessed to form the grooves 112a. It is equivalent to being able to see the grooves 112a on the circumferential surfaces of the monomers 11. On the one hand, the grooves 112a can enlarge the outer surface areas of the monomers 11, improve the heat conduction efficiency, and facilitate the extraction of aerosols. As an example, if a heating mode is circumferential heating, a heat transfer area can also be enlarged through the grooves 112a, thereby improving the overall heating rate of the monomers 11. On the other hand, as an example, since the outer wrapping layer 30 wraps around the peripheries of the monomers 11, the outer wrapping layer 30 can seal the notches of the grooves 112a. The outer wrapping layer 30 cooperates with the grooves 112a to form holes, thereby playing a flow guiding role in restricting the aerosol and external air from flowing in the length direction, which can improve the aerosol extraction efficiency.

[0097] The cross section of each groove 112a is in the shape of a semicircle, a polygon, or the like. The polygon includes but is not limited to a triangle, a right quadrangle, a trapezoid, or the like.

[0098] In one embodiment, referring to FIG. 21 and FIG. 25, the grooves 112a penetrate through the two end surfaces of the monomers 11 in the length direction. In this way, the outer wrapping layer 30 can seal the notches of the grooves 112a to form through holes that penetrate through the two end surfaces of the monomers 11 in the length direction.

[0099] In some embodiments, referring to FIG. 7 to FIG. 26, at least one monomer 11 is formed with a plurality of airways 11a, and the shapes of at least some of the airways 11a of a single monomer 11 are the same. As an example, in one embodiment, the shapes of some of the airways 11a of a single monomer 11 are the same. The airways 11a with the different shapes can provide different inhalation resistances and release different aerosols, thus enhancing the inhalation experience through combinations of the airways 11a with the various shapes. In another embodiment, the shapes of all the airways 11a of a single monomer 11 are the same. If the airways 11a on the single monomer 11 have the more diverse shapes, the manufacturing is more complex, and higher requirements are put forward to a manufacturing process. The shapes of all the airways 11a of the single monomer 11 are the same, which not only reduces the manufacturing difficulty and the manufacturing costs, but also adjusts the inhalation resistance and the release of aerosols by adjusting the quantity of airways 11a and the arrangement of the airways 11a.

[0100] In some embodiments, referring to FIG. 15 to FIG. 18, the airways 11a are formed in the monomers 11, and the shape of at least one airway 11a of the monomers 11 is different. Due to the portability requirement of the aerosol generating product for being held by a user, the size of each monomer 11 is limited. By using the airways 11a with different shapes, the shapes of the airways 11a can be flexibly designed under the limited size of the monomer 11. This not only facilitates the adjustment on the flowing resistance of aerosols, namely, the adjustment on the inhalation resistance during inhalation by a user, but also facilitates the adjustment on the mass distribution of media at different positions of the monomer 11, thereby improving the heating rate and the heating uniformity and reducing burning or the like caused by insufficient or excessive heating. The aerosols can be uniformly released as much as possible.

[0101] In some embodiments, referring to FIG. 7 to FIG. 18, a plurality of airways 11a are formed in all the monomers 11. The shapes of all the airways 11a of a single monomer 11 are the same, and the airways 11a of the monomers 11 are different. As an example, in one embodiment, two monomers 11 are included. All the airways 11a of one monomer 11 are linear holes 1111a, while all the airways 11a of the other monomer 11 are curved holes 1112a.

[0102] In some embodiments, 2 to 30 monomers 11 are included. As an example, 2, 3, 5, 10, 15, 20, 25, 26, 27, or 30 monomers 11 are included. Preferably, the quantity of monomers 11 is between 2 and 20. Since the size of the aerosol generating substrate 10 is limited, a larger quantity of monomers 11 indicates the smaller size of each monomer 11, a more complex process, higher manufacturing difficulty, and higher costs. When the quantity of monomers 11 is greater than 30, the size of each monomer 11 is excessively small, so that the production efficiency is excessively low, and costs are excessively high. If the quantity of monomers 11 is between 2 and 30, the difficulty of manufacturing the monomers 11 is low, and the product yield is high.

[0103] The present application is explained more clearly below by using a plurality of specific embodiments, and the specific embodiments are specifically described as follows: In a first specific embodiment, referring to FIG. 6 and FIG. 7, an aerosol generating substrate 10 includes a first monomer 11 and a second monomer 11, that is, two monomers 11 are included. The first monomer 11 and the second monomer 11 are superposed in the length directions of the monomers 11. The material of the first monomer 11 and the material of the second monomer 11 are different. For the first monomer 11 and the second monomer 11, the quantities of airways 11a, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, and the arrangements of the airways 11a are all the same. Specifically, either of the first monomer 11 and the second monomer 11 includes four airways 11a. The airways 11a are linear holes 1111a. The linear holes 1111a penetrate through the two end surfaces of the monomer 11 in the length direction. The center lines of the linear holes 1111a are parallel to the central axis of the monomer 11 in the length direction. The cross sections of the airways 11a are circular. The linear holes 1111a of the first monomer 11 are aligned and communicated with the linear holes 1111a of the second monomer 11 one by one. In this way, aerosols in the linear holes 1111a of the first monomer 11 smoothly enter the aligned linear holes 1111a of the second monomer 11, so that the aerosols can be adjusted and improved, and the release of the aerosols is more uniform and more stable. The materials of the two monomers 11 are different. For example, the compositions and / or the composing proportions of the monomers 11 are different. In one case, a one heating element is provided to synchronously heat the two monomers 11. An aerosol generated by the first monomer 11 is recombined through the second monomer 11, so that the overall aroma of the aerosol is more uniform and stronger. In another case, a plurality of independent heating elements are provided to respectively heat the two monomers 11, or a single heating element moves relative to the aerosol generating substrate 10 to respectively heat the two monomers 11, to implement directionally selective release aerosols with different flavors. In addition, odors and off-flavors that are generated by repeated heating on the single monomer 11 can be avoided, thereby ensuring that the aerosol inhaled on each puff are fresh, and improve puff consistency.

[0104] In a second specific embodiment, referring to FIG. 8, an aerosol generating substrate 10 includes a third monomer 11 and a fourth monomer 11, that is, two monomers 11 are included. The third monomer 11 and the fourth monomer 11 are superposed in the length directions of the monomers 11. The material of the third monomer 11 and the material of the fourth monomer 11 are the same. The third monomer 11 includes four airways 11a that are linear holes 1111a. The linear holes 1111a penetrate through the two end surfaces of the third monomer 11 in the length direction. The center lines of the linear holes 1111a are parallel to the central axis of the third monomer 11 in the length direction. The cross sections of the linear holes 1111a are square. The cross-sectional shapes and hydraulic diameters of the four linear holes 1111a of the third monomer 11 are the same. The fourth monomer 11 includes 16 airways 11a that are linear holes 1111a. The linear holes 1111a penetrate through the two end surfaces of the fourth monomer 11 in the length direction. The center lines of the linear holes 1111a are parallel to the central axis of the fourth monomer 11 in the length direction. The cross sections of the linear holes 1111a are circular. The cross-sectional shapes and hydraulic diameters of the 16 linear holes 1111a of the fourth monomer 11 are the same. Four circular linear holes 1111a of the fourth monomer 11 form one group, and the 16 circular linear holes 1111a are classified into four groups. Each group is aligned and communicated with one square linear hole 1111a. In this way, for the third monomer 11 and the fourth monomer 11, the quantities of airways 11a, the hydraulic diameters of the airways 11a, the cross-sectional areas of the airways 11a, the cross-sectional shapes of the airways 11a, and the arrangements of the airways 11a are all different. An air flow can be adjusted, thereby adjusting the aerosol extraction rate. For example, the third monomer 11 may be placed on the far-lip side of the fourth monomer 11. In this design, an air flow exiting each square linear hole 1111a can be roughly uniformly divided into four strands. Each strand enters four circular linear holes 1111a. The flow cross section of the circular linear hole 1111a is smaller than that of the square linear hole 1111a. According to the Venturi effect, the flow velocity of the air flow in the circular linear hole 1111a increases, to drive the air flow in the square linear hole 1111a to flow. A higher flow velocity makes it easier for aerosol precipitation. Therefore, the monomer 11 in which the square linear holes 1111a are located release more aerosols into the square linear holes 1111a. As the air flow rate increases, the disturbance of the air flow at the junction of the two monomers 11 increases, so that the air flows slow down and are mixed at the junction of the two monomers 11, causing the aerosol exiting the monomer 11 on the close-lip side to be more concentrated and more stable and reducing, to an extent, the temperature of the aerosol existing the monomer 11 on the close-lip side.

[0105] In a third specific embodiment, referring to FIG. 9, an aerosol generating substrate 10 includes a fifth monomer 11 and a sixth monomer 11, that is, two monomers 11 are included. The fifth monomer 11 and the sixth monomer 11 are superposed in the length directions of the monomers 11. The material of the fifth monomer 11 and the material of the sixth monomer 11 are the same. The fifth monomer 11 includes one airway 11a. The airway 11a is linear hole 1111a. The linear hole 1111a penetrates through the two end surfaces of the fifth monomer 11 in the length direction. The center line of the linear hole 1111a is parallel to the central axis of the fifth monomer 11 in the length direction. The cross section of the linear hole 1111a is circular. The sixth monomer 11 includes seven airways 11a that are linear holes 1111a. The linear holes 1111a penetrate through the two end surfaces of the sixth monomer 11 in the length direction. The center lines of the linear holes 1111a are parallel to the central axis of the sixth monomer 11 in the length direction. The cross sections of the linear holes 1111a are circular. The cross-sectional shapes and hydraulic diameters of the seven linear holes 1111a of the sixth monomer 11 are the same. The seven circular linear holes 1111a of the sixth monomer 11 are aligned and communicated with one circular linear hole 1111a of the fifth monomer 11. As an example, the fifth monomer 11 may be placed on the far-lip side of the sixth monomer 11. In this way, an air flow exiting the linear hole 1111a of the fifth monomer 11 is uniformly divided into a plurality of strands entering the sixth monomer 11. The seven circular linear holes 1111a of the sixth monomer 11 can greatly enlarge the total inner surface area. The total inner surface area of the sixth monomer 11 is larger than the inner surface area of the fifth monomer 11. The linear holes 1111a of the sixth monomer 11 enlarge the contact area between the air flow and a medium, accelerate precipitation and release of an effective component, i.e. an aerosol, in the sixth monomer 11, also increase the velocity of the air flow in the airways 11a of the sixth monomer 11, and plays a cooling role.

[0106] In a fourth specific embodiment, referring to FIG. 10, an aerosol generating substrate 10 includes two fifth monomers 11 and one sixth monomer 11. The two fifth monomers 11 are located on the two sides of the sixth monomer 11 in the length direction. That is, the three monomers 11 are superposed in the length direction to form a three-section structure. That is, an air flow exiting linear holes 1111a of the fifth monomers 11 on the far-lip side is uniformly divided into a plurality of strands entering the sixth monomer 11 located in the middle, and is then aggregated to linear holes 1111a of the fifth monomer 11 on the close-lip side. The linear holes 1111a of the three monomers 11 of the three-section structure jointly form a Venturi-like airway 11a. In a heating process, when a hot aerosol generated by the fifth monomer 11 on the far-lip side passes through the sixth monomer 11, a contact specific surface area with the linear holes 1111a of the sixth monomer 11 is enlarged. This can transfer the internal energy of the aerosol to a medium of the sixth monomer 11 to heat the sixth monomer 11. The linear holes 1111a of the fifth monomer 11 on the close-lip side can reduce the flow velocity of the aerosol, thereby causing a loss in the internal energy of the aerosol in the linear holes 1111a of the sixth monomer 11 on the close-lip side, improving the overall heating uniformity and medium heating efficiency of the aerosol generating substrate 10, and effectively reducing the temperature of the aerosol flowing out of the aerosol generating substrate 10.

[0107] In a fifth specific embodiment, referring to FIG. 11 and FIG. 12, an aerosol generating substrate 10 includes a seventh monomer 11 and an eighth monomer 11, that is, two monomers 11 are included. The two monomers 11 are superposed in the length direction. For the seventh monomer 11 and the eighth monomer 11, the quantities of airways 11a, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, and the cross-sectional areas of the airways 11a are all the same. Either of the seventh monomer 11 and the eighth monomer 11 includes: four airways 11a that are linear holes 1111a. The linear holes 1111a of the seventh monomer 11 and the linear holes 1111a of the eighth monomer 11 are aligned and communicated one by one. The linear holes 1111a of the seventh monomer 11 penetrate through the circumferential surface of the seventh monomer 11 from a junction between the two monomers. The linear holes 1111a of the eighth monomer 11 penetrate through the circumferential surface of the eighth monomer 11 from the junction between the two monomers. As an example, the eighth monomer 11 is located on the close-lip side of the seventh monomer 11. In this way, on the one hand, the contact area between an air flow and the circumferential surfaces of the monomers 11 can be enlarged; the flow rate of the air flow on the circumferential surfaces of the monomers 11 can be increased; and the accumulation of heat on media on the circumferential surfaces of the monomers 11 can be reduced, thereby improving the consistency and uniformity of aerosol release in the heating process. On the other hand, the extension path of the four linear holes 1111a of the seventh monomer 11 tends to converge in the length direction, which can aggregate and gather an aerosol generated by the seventh monomer 11, so that the aerosols can be "aggregated" in the inhalation process of a user and are not dispersed, thus enhancing the inhalation experience of the user. The extension path of the four linear holes 1111a of the eighth monomer 11 tends to be diffused in the length direction. By the diffusion design, the flow velocity of the air flow in the seventh monomer 11 can be reduced; the retention time of the air flow in the seventh monomer 11 can be prolonged; and the heating uniformity of the seventh monomer 11 can be improved, thereby making the aerosols uniform and consistent.

[0108] In a sixth specific embodiment, referring to FIG. 13, an aerosol generating substrate 10 includes a ninth monomer 11 and a tenth monomer 11, that is, two monomers 11 are included. The two monomers 11 are superposed in the length direction. For the ninth monomer 11 and the tenth monomer 11, the quantities of airways 11a, the shapes of the airways 11a, the hydraulic diameters of the airways 11a, and the cross-sectional areas of the airways 11a are all the same. Either of the ninth monomer 11 and the tenth monomer 11 includes: four airways 11a that are linear holes 1111a. The linear holes 1111a of the ninth monomer 11 and the linear holes 1111a of the tenth monomer 11 are aligned and communicated one by one. The linear holes 1111a of both the ninth monomer 11 and the tenth monomer 11 penetrate through the two end surfaces in the length direction, and the center lines of the linear holes 1111a are intersected with the central axes of the monomers 11 in which the linear holes are located. The tenth monomer 11 is located on the close-lip side of the ninth monomer 11. The arrangement of the airways 11a of the tenth monomer 11 and the arrangement of the airways 11a of the ninth monomer 11 are different. For the ninth monomer 11: the distance between the first ends of the linear holes 1111a and the central axis of the monomer 11 is less than the distance between the second ends of the linear holes 1111a and the central axis of the monomer 11. For the tenth monomer 11: the distance between the first ends of the linear holes 1111a and the central axis of the monomer 11 is greater than the distance between the second ends of the linear holes 1111a and the central axis of the monomer 11. The extension path of the four linear holes 1111a of the ninth monomer 11 tends to be diffused in the length direction, while the extension path of the four linear holes 1111a of the tenth monomer 11 tends to converge in the length direction. In this way, the flowing volume of an air flow inside each monomer 11 is increased, so that better consistency is implemented during heating and inhalation, and the aerosol release uniformity is improved.

[0109] In a seventh specific embodiment, referring to FIG. 14, an aerosol generating substrate 10 includes an eighth monomer 11 and a fifth monomer 11. Four linear holes 1111a of the eighth monomer 11 are aligned and communicated with one circular linear hole 1111a of the fifth monomer 11. The fifth monomer 11 may be placed on the far-lip side of the eighth monomer 11. In this way, an air flow exiting the linear hole 1111a of the fifth monomer 11 is uniformly divided into a plurality of strands entering the linear holes 1111a of the eighth monomer 11. This achieves enlarges the contact surface area between the linear holes 1111a of the eighth monomer 11 and a medium and increases the overall medium utilization rate. In addition, the extension path of the four linear holes 1111a of the eighth monomer 11 tends to be diffused in the length direction. By the diffusion design, the flow velocity of the air flow in the eighth monomer 11 can be reduced; the retention time of the air flow in the eighth monomer 11 can be prolonged; and the heating uniformity can be improved, thereby making the aerosols uniform and consistent.

[0110] In an eighth specific embodiment, referring to FIG. 15, an aerosol generating substrate 10 includes a first monomer 11 and an eleventh monomer 11. The eleventh monomer 11 includes four airways 11a. The airways 11a are spiral line-shaped curved holes 1112a with the circular cross section. The curved holes 1112a penetrate through the two end surfaces of the eleventh monomer 11 in the length direction. The four curved holes 1112a of the eleventh monomer 11 are aligned and communicated with the four linear holes 1111a of the first monomer 11 one by one, and the axis of each curved hole 1112a overlaps the center line of the corresponding linear hole 1111a. As an example, the first monomer 11 may be placed on the far-lip side of the eleventh monomer 11. This has an effect of adjusting and improving an air flow, making the aerosol release more uniform and more stable. Further, the curved holes 1112a can enlarge the inner surface area of the eleventh monomer 11, so that heat can enter a medium from the surface. Compared with a structure that directly conduct heat internally, this can improve the heating efficiency. In addition, at an aerosol inhalation capacity, the curved hole 1112a can extend the path of the air flow and increase the flow velocity of the aerosol in the eleventh monomer 11, thereby increasing the impact force of the air flow, implementing uniform mixing of the aerosol, improving the aerosol extraction efficiency, improving the uniformity of the aerosol, and enhancing the inhalation experience of a user.

[0111] In a ninth specific embodiment, referring to FIG. 16, an aerosol generating substrate 10 includes a first monomer 11 and a twelfth monomer 11. A difference between the twelfth monomer 11 and the eleventh monomer 11 is that: The curvature of each curved hole 1112a of the twelfth monomer 11 is different from the curvature of each curved hole 1112a of the eleventh monomer 11, and the axes of the four curved holes 1112a of the twelfth monomer 11 overlap the central axis of the twelfth monomer 11. As an example, the first monomer 11 may be placed on the far-lip side of the twelfth monomer 11. In this way, the flowing volume of an air flow inside each monomer 11 is increased, so that the aerosol generating substrate 10 has the better consistency during heating and inhalation, and the aerosol release uniformity is improved.

[0112] In a tenth specific embodiment, referring to FIG. 17, an aerosol generating substrate 10 includes a thirteenth monomer 11 and a tenth monomer 11. A difference between the thirteenth monomer 11 and the twelfth monomer 11 is that: The curvature of each curved hole 1112a of the thirteenth monomer 11 is different from the curvature of each curved hole 1112a of the twelfth monomer 11, and the center lines of the four curved holes 1112a of the thirteenth monomer 11 is parallel to the central axis of the thirteenth monomer 11. The four curved holes 1112a of the thirteenth monomer 11 are aligned and communicated with the four linear holes 1111a of the tenth monomer 11 one by one. As an example, the tenth monomer 11 may be placed on the far-lip side of the thirteenth monomer 11. In this way, the curved holes 1112a can increase the flow velocity of the aerosol air flow and enlarge the contact area between the air flow and a medium, thereby improving the heating uniformity and the aerosol release consistency.

[0113] In an eleventh specific embodiment, referring to FIG. 18, an aerosol generating substrate 10 includes a twelfth monomer 11 and a tenth monomer 11. Four curved holes 1112a of the twelfth monomer 11 are aligned and communicated with four linear holes 1111a of the tenth monomer 11. As an example, the tenth monomer 11 may be placed on the far-lip side of the twelfth monomer 11. In this way, the spiral line-shaped curved holes 1112a can increase the flow velocity of the aerosol air flow and enlarge the contact area between the air flow and a medium, thereby improving the heating uniformity and the aerosol release consistency.

[0114] In a twelfth specific embodiment, referring to FIG. 19 and FIG. 20, an aerosol generating substrate 10 includes a fourteenth monomer 11 and a fifteenth monomer 11. The fourteenth monomer 11 includes seven linear holes 1111a. One of the seven linear holes 1111a is located on the central axis of the fourteenth monomer 11, and the other six linear holes 1111a are annularly distributed around the central axis. The cross sections of the linear holes 1111a are circular. Each linear hole 1111a penetrates through the two end surfaces of the fourteenth monomer 11 in the length direction, and the center lines of the linear holes 1111a are parallel to the central axis of the fourteenth monomer 11. The fifteenth monomer 11 is provided with no airway 11a. The fourteenth monomer 11 is sleeved inside the fifteenth monomer 11. A gap 11b is reserved between the fourteenth monomer 11 and the fifteenth monomer 11 in an inside-to-outside direction. Specifically, the fifteenth monomer 11 has a through cavity that penetrates through the two end surfaces in the length direction of the s, and the fourteenth monomer 11 is sleeved inside the through cavity. In this way, in a heating process, the two monomers 11 may gradually release aerosols to reduce the impact of a monomer 11 that is releasing an aerosol on a monomer 11 that does not release an aerosol, thereby improving the aerosol release consistency and uniformity. That is, after one monomer 11 reaches the release temperature and releases an aerosol, a next monomer 11 is gradually heated. The gap 11b between the monomers 11 is equivalent to a heat insulation wall, which means that the monomer 11 that releases an aerosol is new after a period of time.

[0115] In a thirteenth specific embodiment, referring to FIG. 21, an aerosol generating substrate 10 includes a fourteenth monomer 11 and a sixteenth monomer 11. A difference between the sixteenth monomer 11 and the fifteenth monomer 11 is that: The sixteenth monomer 11 has grooves 112a. The fourteenth monomer 11 is sleeved inside the sixteenth monomer 11. A gap 11b is reserved between the fourteenth monomer 11 and the sixteenth monomer 11 in an inside-to-outside direction. Specifically, the sixteenth monomer 11 has a through cavity that penetrates through the two end surfaces in the length direction of the s, and the fourteenth monomer 11 is sleeved inside the through cavity. The grooves 112a can enlarge the outer surface area, improve the heat conduction efficiency, and is more conductive for extraction of an effective component.

[0116] In a fourteenth specific embodiment, referring to FIG. 22, an aerosol generating substrate 10 includes a seventeenth monomer 11 and a fifteenth monomer 11. A difference between the seventeenth monomer 11 and the fourteenth monomer 11 is that: The center lines of the linear holes 1111a of the seventeenth monomer 11 are intersected with the central axis of the seventeenth monomer 11. The seventeenth monomer 11 is sleeved inside the fifteenth monomer 11. A gap 11b is reserved between the seventeenth monomer 11 and the fifteenth monomer 11 in an inside-to-outside direction. Specifically, the seventeenth monomer 11 is sleeved inside the through cavity of the fifteenth monomer 11.

[0117] In a fifteenth specific embodiment, referring to FIG. 25, an aerosol generating substrate 10 includes a seventeenth monomer 11 and a sixteenth monomer 11. The seventeenth monomer 11 is sleeved inside the sixteenth monomer 11. A gap 11b is reserved between the seventeenth monomer 11 and the sixteenth monomer 11 in an inside-to-outside direction. Specifically, the seventeenth monomer 11 is sleeved inside the through cavity.

[0118] In a sixteenth specific embodiment, referring to FIG. 26, an aerosol generating substrate 10 includes four eighteenth monomers 11. The cross section of each eighteenth monomer 11 is fan-shaped. The four eighteenth monomers 11 are spliced into a cylinder in the circumferential direction. Each eighteenth monomer 11 includes three linear holes 1111a. The cross sections of the linear holes 1111a are circular. Each linear hole 1111a of the eighteenth monomer 11 penetrates through the two end surfaces of the monomer in the length direction, and the center lines of the linear holes 1111a are parallel to the central axis of the eighteenth monomer 11. The eighteenth monomers 11 can be used in conjunction with a heater. By respectively heating the monomers 11 in different regions in the circumferential direction, aerosols with different flavors can be directionally selectively released. It can further avoid odors generated by repeated heating on a medium, thereby ensuring that the medium inhaled on each puff is fresh and improving the inhalation consistency. The heater may be, for example, a laser heater. A laser emitter rotates relative to the aerosol generating substrate 10 to implement regional heating.

[0119] In the descriptions of the present application, descriptions using reference terms "an embodiment", "some embodiments", "some other embodiments", "yet other embodiments", or "as an example" mean that specific features, structures, materials, or characteristics described with reference to the embodiments or examples are included in at least one embodiment or example of the embodiments of the present application. In the present application, exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Besides, the specific features, the structures, the materials or the characteristics that are described may be combined in proper manners in any one or more embodiments or examples. Additionally, without mutual contradiction, those skilled in the art may combine different embodiments or examples described in the present application, as well as features of the different embodiments or examples.

[0120] The above contents are merely preferred embodiments of the present application and are not used for limiting the present application, and the present application may be variously modified and changed for those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall fall within the scope of protection of the present application.

Claims

1. An aerosol generating substrate, comprising a plurality of monomers, wherein at least some of the monomers are different in at least one parameter; each parameter comprises the material of the monomers, the quantity of airways, the shape of the airways, the hydraulic diameter of the airways, the cross-sectional area of the airways, and the arrangement of the airways; the airways penetrate through at least one end of each monomer in a length direction; and the quantity of airways is a natural number.

2. The aerosol generating substrate of claim 1, wherein the plurality of monomers are superposed one by one in the length directions of the monomers.

3. The aerosol generating substrate of claim 2, wherein the monomers are provided with the airways; and at least one airway of one of two adjacent monomers and at least one airway of the other monomer are at least partially aligned and communicated.

4. The aerosol generating substrate of claim 1, wherein the plurality of monomers are sleeved one by one in an inside-to-outside direction.

5. The aerosol generating substrate of claim 4, wherein a gap is reserved between two adjacent monomers in the inside-to-outside direction.

6. The aerosol generating substrate of claim 1, wherein the plurality of monomers are spliced one by one in a circumferential direction.

7. The aerosol generating substrate of claim 1, wherein the airways comprise air holes; and the air holes are provided inside the monomers.

8. The aerosol generating substrate of claim 7, wherein the air holes penetrate through the two end surfaces of the monomers in the length directions.

9. The aerosol generating substrate of claim 7, wherein the air holes penetrate through one end surface of each monomer in the length direction and the circumferential surface of the monomer.

10. The aerosol generating substrate of claim 7, wherein the air holes are linear holes extending along a straight line.

11. The aerosol generating substrate of claim 10, wherein the center line of each linear hole is intersected with the central axis of each monomer in the length direction.

12. The aerosol generating substrate of claim 11, wherein a plurality of linear holes are formed in a single monomer; and the distance between the first ends of the linear holes in the single monomer and the central axis of the monomer is greater than the distance between the second ends of the linear holes and the central axis of the monomer.

13. The aerosol generating substrate of claim 10, wherein the center line of each linear hole is parallel to the central axis of each monomer in the length direction.

14. The aerosol generating substrate of claim 7, wherein the air holes are curved holes; and the hole segment of each curved hole is at least partially in the curve shape with the curvature not equal to 0.

15. The aerosol generating substrate of claim 14, wherein the curved holes are in the spiral line shape.

16. The aerosol generating substrate of claim 7, wherein 1 to 730 air holes are formed in a single monomer.

17. The aerosol generating substrate of claim 1, wherein the airways comprise grooves; and the grooves are formed in the circumferential surfaces of the monomers.

18. The aerosol generating substrate of claim 1, wherein at least one monomer is formed with a plurality of airways, and the shapes of at least some of the airways of a single monomer are the same.

19. The aerosol generating substrate of claim 1, wherein the airways are formed in the monomers, and the shape of at least one airway of the monomers is different.

20. The aerosol generating substrate of claim 1, wherein 2 to 30 monomers are comprised.

21. An aerosol generating product, comprising: the aerosol generating substrate according to any one of claims 1 to 20; a functional section, arranged at one end of the aerosol generating substrate in a length direction and at least comprising a filtering section for filtering an aerosol; and an outer wrapping layer, wrapping around the outer periphery of the functional section and the outer periphery of the aerosol generating substrate.

22. The aerosol generating product of claim 21, wherein the functional section further comprises a cooling section; and the cooling section is located between the filtering section and the aerosol generating substrate.

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