Aerosol generating product

Abstract

The embodiment of the invention provides an aerosol generating product. The aerosol generating product comprises an aerosol generating matrix section and a functional section, at least one air passage is arranged in the aerosol generating matrix section, and the air passage penetrates through at least one of the two opposite ends of the aerosol generating matrix section in the first direction; the functional section is arranged at one end, in the first direction, of the aerosol generation matrix section, the functional section is provided with a supporting section, a cooling section and a filtering section which are sequentially arranged in the first direction, and the supporting section is located between the aerosol generation matrix section and the cooling section. According to the aerosol generation product, the aerosol extraction efficiency is high, the structural strength is high, and the suction experience feeling of a user can be well improved.

Description

Technical Field

[0001] The present application relates to the technical field of smoking products, and in particular to an aerosol generating product. Background Art

[0002] In the related art, there is an aerosol generating product provided with an aerosol generating substrate section and a filter section. The aerosol generating substrate section is used to generate aerosol by heating with an external heat source, and the aerosol is filtered by the filter section and then inhaled by the user.

[0003] However, the aerosol generating matrix segment in the related technology has a dense structure and low aerosol extraction efficiency, and the temperature of the aerosol generating product after heating is relatively high. When inhaling, the excessively high temperature can easily cause the filter segment to shrink and deform due to heat, affecting the inhalation experience. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide an aerosol generating product that can improve the smoking experience.

[0005] To achieve the above objectives, the present application provides an aerosol generating product, comprising:

[0006] an aerosol generating substrate segment, wherein the aerosol generating substrate segment has at least one air channel therein, and the air channel runs through at least one of two opposite ends of the aerosol generating substrate segment along a first direction;

[0007] A functional segment is arranged at one end of the aerosol generating matrix segment along a first direction, and the functional segment is provided with a supporting segment, a cooling segment and a filtering segment arranged in sequence along the first direction, and the supporting segment is located between the aerosol generating matrix segment and the cooling segment.

[0008] In one embodiment, at least one of the supporting section and the cooling section is a tubular structure.

[0009] In one embodiment, the tubular structure is a fiber tube or a metal tube.

[0010] In one embodiment, the support section is a support tube having a first hollow channel, and the cooling section is a cooling tube having a second hollow channel; the outer dimensions of the cross section of the support tube are the same as the outer dimensions of the cross section of the cooling tube.

[0011] In one embodiment, the support section is a support tube having a first hollow channel, and the cooling section is a cooling tube having a second hollow channel; the cross-sectional dimension of the first hollow channel is less than or equal to the cross-sectional dimension of the second hollow channel.

[0012] In one embodiment, the support section is a support tube having a first hollow channel and a first airflow channel, wherein the first airflow channel is located around the first hollow channel and passes through opposite ends of the support tube along the first direction.

[0013] In one embodiment, the cooling section is a cooling tube having a second hollow channel and a second air flow channel, and the second air flow channel is located on the peripheral side of the second hollow channel and runs through the opposite ends of the cooling tube along the first direction.

[0014] In one embodiment, the support section is the support tube, which includes a first outer circular layer, a first inner circular layer sleeved in the first outer circular layer, and a first corrugated layer connected between the first outer circular layer and the first inner circular layer, and the cross-section of the first corrugated layer is wavy; the interior of the first inner circular layer is a first hollow channel, and the first outer circular layer, the first inner circular layer and the first corrugated layer jointly define a plurality of the first airflow channels.

[0015] In one embodiment, the support segment is the support tube, and the aerosol generating article further comprises a flavoring substance disposed in the first airflow channel.

[0016] In one embodiment, the cooling section is the cooling tube, which includes a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer, and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, and the cross-section of the second corrugated layer is wavy; the interior of the second inner circular layer is a second hollow channel, and the second outer circular layer, the second inner circular layer and the second corrugated layer jointly define a plurality of second airflow channels.

[0017] In one embodiment, the cooling section is the cooling tube, and the aerosol generating product further includes a flavoring substance disposed in the second air flow channel.

[0018] In one embodiment, the support section is a support tube having a first hollow channel, and a portion of an outer side wall of the support tube is recessed to form a groove, and the groove runs through two opposite ends of the support tube along the first direction.

[0019] In one embodiment, the cooling section is a cooling tube having a second hollow channel, and a portion of the outer wall of the cooling tube is recessed to form a groove, and the groove runs through two opposite ends of the cooling tube along the first direction.

[0020] In one embodiment, the support section is a support tube having a first hollow channel, the support tube comprising a first tube wall and a metal coating, the first tube wall defines the first hollow channel, and at least one of the inner wall surface and the outer wall surface of the first tube wall is coated with the metal coating.

[0021] In one embodiment, the material of the metal coating is one of aluminum, copper and tin, or a combination of at least two thereof.

[0022] In one embodiment, the cooling section is a cooling tube having a second hollow channel, and the cross-sectional size of the first hollow channel is equal to or unequal to the cross-sectional size of the second hollow channel.

[0023] In one embodiment, the support section is a support tube having a first hollow channel, the support tube includes a first tube wall and a partition, the first tube wall defines the first hollow channel, and the partition is arranged in the first hollow channel to separate the first hollow channel into a plurality of third airflow channels.

[0024] In one embodiment, one of the supporting section and the cooling section is the tubular structure, and the other is a solid fiber structure.

[0025] In one embodiment, the filter segment is a solid fiber structure or a porous structure.

[0026] In one embodiment, the aerosol generating matrix segment, the supporting segment, the cooling segment and the filtering segment are coaxially arranged cylinders and the aerosol generating matrix segment is an integrated structure, and the first direction is the axial direction of the aerosol generating matrix segment, the supporting segment, the cooling segment and the filtering segment.

[0027] In one embodiment, the aerosol generating article further comprises an outer wrapping layer, wherein the outer wrapping layer is coated on the outer peripheral side of the aerosol generating substrate segment and the functional segment.

[0028] The embodiment of the present application provides an aerosol generating product, wherein the aerosol generating product is provided with an aerosol generating matrix section having an airway and a functional section located at one end of the aerosol generating matrix section along a first direction, wherein the functional section is provided with a supporting section, a cooling section and a filtering section arranged in sequence along the first direction, wherein the supporting section is located between the aerosol generating matrix section and the cooling section. The airway on the aerosol generating matrix section can extend the airflow path, increase the flow velocity of the airflow in the aerosol generating matrix section, thereby increasing the impact force of the airflow, allowing the aerosol to be evenly mixed, thereby increasing the extraction efficiency and uniformity of the aerosol in the aerosol generating matrix section, and improving the user's suction experience, the supporting section can increase the structural strength of the functional section, so as to better prevent the functional section from collapsing and deforming under the high temperature of the aerosol, the cooling section can cool the aerosol, so as to reduce the temperature to a level acceptable to the human body, the aerosol generating product has a high efficiency in extracting aerosols, a high structural strength, and can better improve the user's suction experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a first aerosol generating product according to an embodiment of the present application;

[0030] Figure 2 for Figure 1 A schematic diagram of the structure of the aerosol generating article shown with the outer wrapping layer omitted;

[0031] Figure 3 for Figure 1 a cross-sectional view of the aerosol-generating article shown;

[0032] Figure 4 is a cross-sectional view of a second aerosol generating article according to an embodiment of the present application;

[0033] Figure 5 for Figure 4 A schematic diagram of the structure of the support section shown;

[0034] Figure 6 is a cross-sectional view of a third aerosol generating article according to an embodiment of the present application;

[0035] Figure 7 is a cross-sectional view of a fourth aerosol generating article according to an embodiment of the present application;

[0036] Figure 8 is a cross-sectional view of a fifth aerosol generating article according to an embodiment of the present application;

[0037] Fig. 9 for Figure 8 A schematic diagram of the structure of the support section shown;

[0038] Fig.10 This is a cross-sectional view of a sixth aerosol-generating article according to an embodiment of the present application.

[0039] Fig.11 is a cross-sectional view of a seventh aerosol generating article according to an embodiment of the present application;

[0040] Fig.12 for Fig.11 A cross-sectional view of the cooling section is shown.

[0041] Description of Reference Numerals

[0042] 10. Aerosol generating matrix section; 10a. Airway; 20. Functional section; 21. Support section; 21a. First hollow channel; 21b. First airflow channel; 21c. Third airflow channel; 211. First tube wall; 212. Metal coating; 213. Separator; 214. First outer circular layer; 215. First inner circular layer; 216. First corrugated layer; 22. Cooling section; 22a. Second hollow channel; 22b. Second airflow channel; 22c. Groove; 23. Filter section; 30. Outer wrapping layer. DETAILED DESCRIPTION

[0043] In the description of the embodiments of the present application, it should be noted that the orientation or position relationship indicated by the term "first direction" or the like is based on the attached Figure 2 The orientation or positional relationship shown, these orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0044] The present application embodiment provides an aerosol generating product, please refer to Figures 1 to 4 , Figures 6 to 8 , Fig.10 The aerosol generating article comprises an aerosol generating substrate segment 10 and a functional segment 20.

[0045] The interior of the aerosol generating substrate segment 10 has at least one air channel 10a, and the air channel 10a runs through at least one of the two opposite ends of the aerosol generating substrate segment 10 along the first direction. The functional segment 20 is arranged at one end of the aerosol generating substrate segment 10 along the first direction, and the functional segment 20 is provided with a supporting segment 21, a cooling segment 22 and a filtering segment 23 arranged in sequence along the first direction, and the supporting segment 21 is located between the aerosol generating substrate segment 10 and the cooling segment 22.

[0046] The aerosol generating product is used in conjunction with an aerosol generating device having a heating component. Specifically, the heating component heats and atomizes the aerosol generating substrate segment 10 in the aerosol generating product to generate an aerosol for users to inhale or for use in medicine, beauty, etc.

[0047] There are many heating methods for the heating component. Exemplarily, the heating methods include central heating and peripheral heating. The central heating method refers to the heating component being inserted into the interior of the aerosol generating product to bake and heat the aerosol generating product from the inside out. The peripheral heating method refers to the heating component being arranged at the periphery of the aerosol generating product to bake and heat the aerosol generating product from the outside in. These heating methods may specifically be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc.

[0048] The specific structure of the aerosol generating matrix segment 10 is not limited here. For example, in one embodiment, the aerosol generating matrix segment 10 can be made of the atomizing medium itself, for example, made of the smoke flavoring medium. In other embodiments, the aerosol generating matrix segment 10 can also include a matrix and an atomizing medium disposed on the matrix. The matrix can be, for example, high temperature resistant carbon fiber. In this way, by providing the matrix, the strength of the aerosol generating matrix segment 10 can be improved, and it can also withstand a certain degree of high temperature without generating odor.

[0049] The specific components of the aerosol-generating matrix segment 10 are not limited here. For example, in one embodiment, the aerosol-generating matrix segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, etc. In one embodiment, the plant components are one or more combinations of powders formed after crushing tobacco leaf raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of the flavor of the product. Endogenous substances in plant components, such as nicotine, enter the human blood through atomization, promote the pituitary gland to produce dopamine, and thus obtain physiological satisfaction.

[0050] In one embodiment, the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the wall material after the plant component is formed, thereby increasing the aerosol release rate.

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

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

[0053] The function of the smoke-generating agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke in the smoking product. 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 monoacetin, diacetin or triacetin); 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 diacetin glycerides, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, lauryl acetate). One or more combinations thereof.

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

[0055] Exemplarily, the aerosol generating matrix section 10 can be a particle combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agent and tobacco. The aerosol generating matrix section 10 is an integrated structure, for example, an integrated structure that can be formed by injection molding, compression molding or extrusion technology. Wherein extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and is continuously made into various cross-section products or semi-finished products through the die head. The aerosol matrix formed by extrusion molding is in strip shape.

[0056] Since the aerosol generating matrix segment 10 is a particle combination, it is an integrated medium when the aerosol generating matrix segment 10 is heated and sucked or stops being heated, and is not prone to disintegration and falling off. This solves the problems in the prior art of the thin sheet, filamentary or loose particle aerosol generating matrix segment 10, such as loose sheets, falling of filamentary components and particle components, and difficulty in cleaning.

[0057] In addition, the shape of the aerosol generating substrate segment 10 is not limited. For example, see Figure 2The aerosol generating matrix segment 10 may be columnar, and the cross-section of the columnar aerosol generating matrix segment 10 may be circular or in other shapes, such as polygonal (including but not limited to triangle, square, prism, etc.), elliptical, runway-shaped or irregular, etc., wherein irregular refers to other symmetrical or asymmetrical shapes other than the shapes listed above.

[0058] The first direction is the arrangement direction of the aerosol generating matrix segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23. The aerosol generating product is inserted into the aerosol generating device along the first direction, and the aerosol generating product is also taken out of the aerosol generating device along the first direction. The length of the aerosol generating matrix segment 10 along the first direction can be longer, shorter, or the same as the lengths in other directions.

[0059] For example, when the aerosol generating substrate segment 10 has a cylindrical appearance, the first direction is the axial direction of the aerosol generating substrate segment 10. It should be noted that the axial length of the aerosol generating substrate segment 10 may be smaller than its diameter.

[0060] For another example, when the appearance of the aerosol generating matrix segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the arrangement direction of the aerosol generating matrix segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23, or the direction of taking and placing the aerosol generating product on the aerosol generating device. The first direction of the aerosol generating matrix segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0061] For example, see Figure 2 The aerosol generating matrix segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23 can be coaxially arranged cylinders and the aerosol generating matrix segment 10 is an integrated structure. The first direction is the axial direction of the aerosol generating matrix segment 10, the supporting segment 21, the cooling segment 22 and the filtering segment 23.

[0062] Figure 3 The air channel 10a passes through the opposite ends of the aerosol generating substrate segment 10 along the first direction. In some embodiments, the air channel 10a may also only pass through one end of the aerosol generating substrate segment 10 close to the functional segment 20, while the other end is a closed end. Alternatively, the air channel 10a may also only pass through one end of the aerosol generating substrate segment 10 away from the functional segment 20, while the other end is a closed end.

[0063] Compared with the air passage 10a penetrating one end of the aerosol generating substrate segment 10 along the first direction, the air passage 10a penetrating both ends of the aerosol generating substrate segment 10 along the first direction is more conducive to reducing the inhalation resistance of the user.

[0064] The number of the air passage 10a may be one or more.

[0065] The airway 10a may be as follows Figure 3 The straight airway 10a shown is an airway 10a extending along a straight line, or in other words, the extending direction of the straight airway 10a is a straight line.

[0066] The airway 10a may also be a spiral airway 10a. The spiral airway 10a is an airway 10a whose curvature is not zero in at least a part of the area along the extension direction. For example, along the extension direction of the spiral airway 10a, the spiral airway 10a may have a structure with both a curve segment with a curvature not zero and a straight line segment with a curvature of zero, or may have only a curve segment with a curvature not zero and no straight line segment with a curvature of zero. In other words, from the starting point to the end point of the spiral airway 10a along the extension direction, the spiral airway 10a does not need to extend in a straight line.

[0067] When there are multiple air passages 10 a , some of the air passages 10 a may be straight air passages 10 a , and other air passages 10 a may be spiral air passages 10 a .

[0068] The shape of the cross section of the airway 10a is not limited. For example, the cross section may be circular, polygonal (including but not limited to triangle, square, prism, etc.), elliptical, racetrack-shaped or irregular-shaped.

[0069] The airway 10a can extend the airflow path and increase the flow speed of the airflow in the aerosol generating matrix segment 10, thereby increasing the impact force of the airflow and allowing the aerosol to be evenly mixed, thereby improving the extraction efficiency and uniformity of the aerosol in the aerosol generating matrix segment 10 and enhancing the user's inhalation experience.

[0070] The supporting segment 21 is mainly used to provide support for the functional segment 20 to improve the structural strength of the functional segment 20, especially the structural strength at high temperature.

[0071] Exemplarily, the supporting segment 21 may have good structural strength at least at a high temperature of 200°C.

[0072] In some scenarios, the support segment 21 can also provide a certain suction resistance.

[0073] The cooling section 22 is mainly used to cool the aerosol to avoid "burning the mouth" during the inhalation process.

[0074] Exemplarily, the cooling section 22 can reduce the temperature of the aerosol to 65° C. or below.

[0075] The supporting section 21 and the cooling section 22 may have the same structure or different structures.

[0076] The materials of the supporting section 21 and the cooling section 22 may be the same or different.

[0077] The filter section 23 is mainly used to filter harmful components in the aerosol and adjust the inhalation resistance.

[0078] For example, the filter section 23 may be a solid fiber structure, which is mainly composed of fibers, and the aerosol passes through the pores naturally formed between the fibers. The solid fiber structure does not have a macroscopic airflow channel, and the macroscopic airflow channel refers to a channel mainly formed by processing. The cross-sectional area and length of the airflow channel can be changed according to the design requirements, while the cross-sectional area and length of the pores between the fibers are mainly formed naturally during the processing.

[0079] The material of the solid fiber structure can be PET, acetate fiber, etc.

[0080] The solid fiber structure can directionally filter the aerosol to remove harmful components therein, and can also adjust the inhalation resistance to better prevent the aerosol-generating products from causing suction voids due to too small inhalation resistance, thereby affecting the suction experience.

[0081] Exemplarily, the filter segment 23 may also be a porous structure, where a porous structure refers to a structure having macroscopic air flow channels.

[0082] Exemplarily, the suction resistance of the filter segment 23 can be 100Pa~350Pa (including endpoint values). For example, the suction resistance of the filter segment 23 can be 100Pa, 150Pa, 170Pa, 200Pa, 230Pa, 260Pa, 280Pa, 320Pa, 350Pa, etc.

[0083] It should be noted that the aerosol generating product relies on the aerosol generating substrate segment 10 to generate aerosol, and the functional segment 20 does not generate aerosol.

[0084] See also Figure 1 and Figure 3 The aerosol generating product may further be provided with an outer wrapping layer 30 , which is coated on the outer peripheral side of the aerosol generating substrate segment 10 and the functional segment 20 .

[0085] The material of the outer wrapping layer 30 is not limited. For example, the outer wrapping layer 30 includes but is not limited to one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butylene adipate-co-terephthalate) and other materials.

[0086] Exemplarily, the outer wrapping layer 30 can be a one-layer or two-layer structure. For example, when the outer wrapping layer 30 is a one-layer structure, the aerosol generating matrix segment 10, the support segment 21, the cooling segment 22 and the filter segment 23 can be wrapped at the same time. When the outer wrapping layer 30 is a two-layer structure, the support segment 21, the cooling segment 22 and the filter segment 23 can be first wrapped by one outer wrapping layer 30, and then wrapped by another outer wrapping layer 30. Alternatively, the outer wrapping layer 30 can also be wrapped in other ways.

[0087] The aerosol generating matrix segment in the related technology has a dense structure and low aerosol extraction efficiency, and the heating temperature of the aerosol generating matrix segment during the heating process is about 300°C. During inhalation, the temperature at the outlet of the aerosol generating matrix segment is generally about 200°C or even higher. Excessively high temperature can easily cause the filter segment to shrink and deform due to heat, affecting the appearance and inhalation experience.

[0088] The aerosol generating product of the embodiment of the present application is provided with an aerosol generating matrix segment 10 having an airway 10a and a functional segment 20 located at one end of the aerosol generating matrix segment 10 along the first direction. The functional segment 20 is provided with a supporting segment 21, a cooling segment 22 and a filtering segment 23 arranged in sequence along the first direction, and the supporting segment 21 is located between the aerosol generating matrix segment 10 and the cooling segment 22. The airway 10a on the aerosol generating matrix segment 10 can extend the airflow path and increase the flow speed of the airflow in the aerosol generating matrix segment 10, thereby increasing the impact force of the airflow and allowing the aerosol to be evenly mixed, thereby increasing the extraction efficiency and uniformity of the aerosol in the aerosol generating matrix segment 10 and improving the user's inhalation experience. The supporting segment 21 can increase the structural strength of the functional segment 20 to better prevent the functional segment 20 from collapsing and deforming under the high temperature of the aerosol. The cooling segment 22 can cool the aerosol to reduce the temperature to a level acceptable to the human body. The aerosol generating product has a high efficiency in extracting aerosols and a high structural strength, which can better improve the user's inhalation experience.

[0089] In one embodiment, please refer to Figure 3 , Figure 4 , Figures 6 to 8 , Fig.10 At least one of the supporting section 21 and the cooling section 22 may be a tubular structure, where the tubular structure refers to a tubular structure having a hollow channel.

[0090] According to design requirements, the support section 21 may be a tubular structure and the cooling section 22 may be a non-tubular structure; the support section 21 may be a non-tubular structure and the cooling section 22 may be a tubular structure; or both the support section 21 and the cooling section 22 may be tubular structures.

[0091] The tubular structure has high structural strength, and the hollow channel of the tubular structure can facilitate smooth passage of aerosol.

[0092] Exemplarily, the tubular structure can be a fiber tube, such as an acetate tube (i.e., the material is acetate fiber), a PET (polyethylene terephthalate) tube (i.e., the material is PET), a paper tube (i.e., the material is plant fiber, non-plant fiber), etc.

[0093] Exemplarily, the tubular structure may be a metal tube, such as an aluminum tube.

[0094] In one embodiment, please refer to Figure 3 The supporting section 21 is a supporting tube having a first hollow channel 21a, and the cooling section 22 is a cooling tube having a second hollow channel 22a. That is to say, the supporting section 21 and the cooling section 22 can both be tubular structures, and the first hollow channel 21a is connected to the second hollow channel 22a to jointly form a channel for aerosol to pass through.

[0095] See also Figure 3 The outer dimensions of the cross section of the support tube can be the same as those of the cross section of the cooling tube, that is, the outer contour of the cross section of the support tube is exactly the same as the outer contour of the cross section of the cooling tube, so as to facilitate the compounding or splicing of the aerosol generating product.

[0096] See also Figure 3 , the cross-sectional dimension of the first hollow channel 21a can be smaller than the cross-sectional dimension of the second hollow channel 22a, that is, compared with the second hollow channel 22a, the space in the first hollow channel 21a is relatively narrow. This arrangement can cause a Venturi effect to occur between the first hollow channel 21a and the second hollow channel 22a (the Venturi effect refers to the phenomenon that the flow velocity of a fluid increases when the fluid passes through a reduced flow cross section, and the flow velocity is inversely proportional to the flow cross section), and the aerosol can pass through the first hollow channel 21a more quickly, thereby extracting the aerosol more quickly. The cross-sectional dimension of the second hollow channel 22a of the cooling tube is relatively large, so the cooling tube has a larger specific surface area, which can achieve rapid cooling of the aerosol.

[0097] Cross-sectional dimensions refer to the dimensions from which the cross-sectional area can be calculated, e.g. Figure 3 The cross-sections of the first hollow channel 21a and the second hollow channel 22a are both circular, so the cross-sectional size refers to the diameter or radius of the cross-sections of the first hollow channel 21a and the second hollow channel 22a.

[0098] In addition, when the outer dimensions of the cross section of the support tube are the same as or similar to the outer dimensions of the cross section of the cooling tube, if the cross-sectional dimension of the first hollow channel 21a is smaller than the cross-sectional dimension of the second hollow channel 22a, it is equivalent to that the wall thickness of the support tube is greater than the wall thickness of the cooling tube, and the support tube can provide better support for the functional section 20.

[0099] In some embodiments, the cross-sectional dimension of the first hollow channel 21 a may also be equal to or greater than the cross-sectional dimension of the second hollow channel 22 a .

[0100] exist Figure 3 In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least part of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the first hollow channel 21a, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the user's mouth. Figure 3 The cross-sectional dimension of the first hollow channel 21a is smaller than that of the second hollow channel 22a. Therefore, a Venturi effect is generated between the first hollow channel 21a and the second hollow channel 22a, and the aerosol can pass through the first hollow channel 21a more quickly, thereby extracting the aerosol more quickly. The cross-sectional dimension of the second hollow channel 22a of the cooling tube is relatively large. Therefore, the cooling tube has a larger specific surface area, which can achieve rapid cooling of the aerosol. In one embodiment, please refer to Figure 4 and Figure 5 The support tube may be provided with a first air flow channel 21 b, which is located at the peripheral side of the first hollow channel 21 a and passes through opposite ends of the support tube along the first direction.

[0101] The number of the first air flow channel 21 b may be one or more.

[0102] For example, see Figure 5 The support tube may include a first outer circular layer 214, a first inner circular layer 215 sleeved in the first outer circular layer 214, and a first corrugated layer 216 connected between the first outer circular layer 214 and the first inner circular layer 215, and the cross section of the first corrugated layer 216 is wavy. The interior of the first inner circular layer 215 is a first hollow channel 21a, and the first outer circular layer 214, the first inner circular layer 215 and the first corrugated layer 216 jointly define a plurality of first air flow channels 21b.

[0103] Figure 4The cooling section 22 is a cooling tube, and the first airflow channel 21b is connected to the second hollow channel 22a. That is, part of the aerosol can flow from the first airflow channel 21b into the second hollow channel 22a.

[0104] In some embodiments, the temperature reduction section 22 may not be a tubular structure.

[0105] During the heating process of the aerosol generating matrix segment 10, the external airflow will flow into the aerosol generating matrix segment 10 from the side of the aerosol generating matrix segment 10 away from the functional segment 20, and carry the aerosol generated by the aerosol generating matrix segment 10 to flow toward the functional segment 20. After the airflow carrying the aerosol enters the first hollow channel 21a and the first airflow channel 21b respectively, it can be buffered in the first hollow channel 21a and the first airflow channel 21b. Since the thermal conductivity efficiency of the external airflow is relatively low (the thermal conductivity is about 0.03W / (m·K)), the external airflow can exchange heat and cool the aerosol, thereby better preventing the support segment 21 from collapsing and deforming at high temperature, thereby ensuring that the support segment 21 can provide better support.

[0106] Furthermore, the aerosol generating product may be provided with flavoring substances in the first airflow channel 21b, and the flavoring substances may flow out along with the airflow flowing through the first airflow channel 21b to compensate for the smoke flavor and enhance the smoking taste.

[0107] In addition, aroma substances can also absorb a certain amount of heat. For example, aroma substances can generally effectively absorb more than 50 joules of heat. Therefore, setting up aroma substances can also better reduce the temperature of the aerosol.

[0108] exist Figure 4 and Figure 5In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases the aerosol. Since at least some of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the support tube, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the user's mouth. Among them, when passing through the support tube, a part of the airflow carrying aerosol enters the first hollow channel 21 and is buffered in the first hollow channel 21, and the other part of the airflow carrying aerosol enters the first airflow channel 21b and is buffered in the first airflow channel 21b. Since the thermal conductivity of the external airflow is relatively low (the thermal conductivity is about 0.03W / (m·K)), the external airflow can exchange heat and cool the aerosol, thereby better preventing the support segment 21 from collapsing and deforming at high temperature, thereby ensuring that the support segment 21 can provide better support.

[0109] In one embodiment, please refer to Figure 6 The cooling pipe may be provided with a second air flow channel 22b, and the second air flow channel 22b is located on the peripheral side of the second hollow channel 22a ( Figure 6 The structure of the cooling pipe can refer to Figure 5 The support tube structure shown in the figure) runs through the opposite ends of the cooling tube along the first direction.

[0110] The number of the second air flow channel 22b may be one or more.

[0111] Exemplarily, the cooling tube may include a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer, and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, wherein the cross section of the second corrugated layer is wavy. The interior of the second inner circular layer is a second hollow channel, and the second outer circular layer, the second inner circular layer, and the second corrugated layer together define a plurality of second air flow channels.

[0112] Figure 6 The support section 21 in the embodiment is a support tube, and the second airflow channel 22b is connected to the first hollow channel 21a. That is, part of the aerosol can flow from the first hollow channel 21a into the second airflow channel 22b.

[0113] That is to say, a second air flow channel 22b similar to the first air flow channel 21b can also be set on the cooling tube. After the air flow carrying aerosol enters the second hollow channel 22a and the second air flow channel 22b respectively, it can also be buffered and cooled in the second hollow channel 22a and the second air flow channel 22b. Therefore, the cooling effect of the cooling tube can be further improved.

[0114] Likewise, aroma substances may also be disposed in the second air flow channel 22b.

[0115] In addition, it should be noted that although Figure 4 The cooling pipe shown is not provided with the second air flow channel 22b. Figure 6 The support tube shown is not provided with the first air flow channel 21 b , but in some embodiments, the functional section 20 may also be provided with a support tube having the first air flow channel 21 b and a cooling tube having the second air flow channel 22 b .

[0116] exist Figure 6 In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least part of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the first hollow channel 21a, the cooling tube and the filter segment 23 in sequence, and finally flows into the user's oral cavity. Among them, when passing through the cooling tube, a part of the airflow carrying the aerosol enters the second airflow channel 22b and is buffered and cooled in the second airflow channel 22b, and another part of the airflow carrying the aerosol enters the second airflow channel 22b and is buffered and cooled in the second airflow channel 22b, thereby further improving the cooling effect of the cooling tube.

[0117] In one embodiment, the support tube may also be provided with a metal coating 212, for example, see Figure 7 For the convenience of description, the tube wall of the support tube defining the first hollow channel 21a may be referred to as the first tube wall 211, and at least one of the inner wall surface and the outer wall surface of the first tube wall 211 may be coated with a metal coating 212, that is, the metal coating 212 may be coated only on the inner wall surface of the first tube wall 211, or only on the outer wall surface of the first tube wall 211, or respectively on the inner wall surface and the outer wall surface of the first tube wall 211.

[0118] The metal coating 212 can not only improve the supporting strength of the support tube, but also has good temperature resistance. Therefore, the metal coating 212 can better prevent the support tube from thermal collapse and deformation at high temperatures.

[0119] Exemplarily, the material of the metal coating 212 may be one of aluminum, copper and tin, or a combination of at least two of them.

[0120] In addition, since the metal coating 212 can provide better support and temperature resistance, when the cooling section 22 is a cooling tube, the cross-sectional size of the first hollow channel 21a of the supporting tube can be larger than the cross-sectional size of the second hollow channel 22a of the cooling tube. In other words, the space inside the first hollow channel 21a is relatively large, so that more aerosol can be accommodated in the first hollow channel 21a. While improving the ability of the supporting tube to buffer aerosols, the efficiency of extracting aerosols can also be improved to a certain extent.

[0121] In some embodiments, the cooling tube may also be provided with a metal coating 212. For example, for ease of description, the tube wall of the cooling tube defining the second hollow channel 22a may be referred to as the second tube wall, and at least one of the inner wall surface and the outer wall surface of the second tube wall may be coated with a metal coating 212.

[0122] exist Figure 7 In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least some of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the first hollow channel 21a, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the user's mouth. Among them, the support tube is provided with a metal coating 212. The metal coating 212 can not only improve the support strength of the support tube, but also has good temperature resistance. Therefore, the metal coating 212 can better prevent the support tube from thermal collapse and deformation at high temperatures. At the same time, Figure 7 The cross-sectional dimension of the first hollow channel 21a of the middle support tube is larger than the cross-sectional dimension of the second hollow channel 22a of the cooling tube. The first hollow channel 21a can accommodate more aerosol, which can improve the aerosol extraction efficiency to a certain extent while improving the aerosol buffering capacity of the support tube.

[0123] In other embodiments, the cross-sectional dimension of the first hollow channel 21a may also be smaller than the cross-sectional dimension of the second hollow channel 22a of the cooling tube, or the cross-sectional dimension of the first hollow channel 21a may also be equal to the cross-sectional dimension of the second hollow channel 22a of the cooling tube.

[0124] In one embodiment, please refer to Figure 8 and Fig. 9 The support tube may further be provided with a partition 213, and the partition 213 is provided in the first hollow channel 21a to separate the first hollow channel 21a into a plurality of third air flow channels 21c.

[0125] The separator 213 can not only improve the supporting strength of the support tube to better prevent the support tube from thermal collapse and deformation at high temperature, but also filter and screen the condensate formed by the aerosol or large particles in the aerosol to relieve the filtering pressure of the filtering section 23, and can also prevent the aerosol generating matrix section 10 from shrinking due to heat and falling into the support tube or the cooling section 22, thereby better improving the user experience.

[0126] exist Figure 8 and Fig. 9 In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least part of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the support tube, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the user's mouth. Among them, when passing through the support tube, the airflow carrying the aerosol enters each third airflow channel 21c respectively. The separator 213 can not only improve the supporting strength of the support tube to better prevent the support tube from thermal collapse and deformation at high temperature, but also filter and screen the condensate formed by the aerosol or large particles in the aerosol to relieve the filtering pressure of the filtering section 23, and can also prevent the aerosol generating matrix section 10 from shrinking due to heat and falling into the support tube or the cooling section 22, thereby better improving the user experience.

[0127] In some embodiments, a partition 213 may also be disposed in the cooling tube. For example, the partition 213 may be disposed in the second hollow channel 22a to separate the second hollow channel 22a into a plurality of fourth air flow channels.

[0128] In one embodiment, one of the supporting section 21 and the cooling section 22 may be a tubular structure, and the other may be a solid fiber structure.

[0129] Fig.10 The support section 21 in the embodiment is a solid fiber structure, for example, the support section 21 may be solid acetate fiber or solid PET, and the cooling section 22 is a cooling tube.

[0130] exist Fig.10 In the aerosol generating product shown, when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least part of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the support segment 21, the second hollow channel 22a and the filter segment 23 in sequence, and finally flows into the user's mouth. Among them, the support segment 21 is a solid fiber structure. While playing a supporting role, the solid fiber structure can filter the aerosol in a directional manner to remove harmful components therein, and can also adjust the suction resistance to better prevent the aerosol generating product from causing suction cavities due to too small suction resistance and affecting the suction experience.

[0131] In other embodiments, the supporting section 21 may be a supporting tube, and the cooling section 22 may be a solid fiber structure.

[0132] When the supporting section 21 or the cooling section 22 is a solid fiber structure, the solid fiber structure can also provide an absorption resistance of 100Pa to 350Pa (including endpoint values). For example, the absorption resistance of the solid fiber structure can be 100Pa, 150Pa, 170Pa, 200Pa, 230Pa, 260Pa, 280Pa, 320Pa, 350Pa, etc.

[0133] In one embodiment, please refer to Fig.11 and Fig.12 Part of the outer wall of the cooling pipe can be recessed to form a groove 22c, and the groove 22c runs through the opposite ends of the cooling pipe along the first direction.

[0134] The number of the groove 22c may be one or more.

[0135] The groove 22c can increase the contact area between the aerosol and the cooling tube, reduce the flow rate of the aerosol, and is more conducive to reducing the temperature of the aerosol.

[0136] In addition, flavoring substances may also be provided in the groove 22c.

[0137] exist Fig.11 and Fig.12In the aerosol generating product shown in , when the aerosol generating matrix segment 10 is heated, the aerosol generating matrix segment 10 releases aerosol. Since at least part of the micropores or gaps in the wall material of the aerosol generating matrix segment 10 are connected to the airway 10a, the aerosol released by the aerosol generating matrix segment 10 when heated can enter the airway 10a through the micropores or gaps connected to the airway 10a. At the same time, the external airflow enters the airway 10a from the end of the aerosol generating matrix segment 10 away from the functional segment 20, and drives the aerosol to pass through the first hollow channel 21a, the cooling tube and the filter segment 23 in sequence, and finally flows into the user's oral cavity. Among them, when passing through the cooling tube, a part of the airflow carrying the aerosol enters the second airflow channel 22b and is buffered and cooled in the second airflow channel 22b, and another part of the airflow carrying the aerosol enters the groove 22c and is buffered and cooled in the groove 22c, thereby further improving the cooling effect of the cooling tube.

[0138] In other embodiments, a portion of the outer side wall of the support tube may also be recessed to form a groove, and the groove runs through two opposite ends of the support tube along the first direction.

[0139] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0140] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, characterized in that include: an aerosol generating substrate segment, wherein the aerosol generating substrate segment has at least one air channel therein, and the air channel runs through at least one of two opposite ends of the aerosol generating substrate segment along a first direction; A functional segment is arranged at one end of the aerosol generating matrix segment along a first direction, and the functional segment is provided with a supporting segment, a cooling segment and a filtering segment arranged in sequence along the first direction, and the supporting segment is located between the aerosol generating matrix segment and the cooling segment.

2. The aerosol-generating article according to claim 1, wherein At least one of the supporting section and the cooling section is a tubular structure.

3. The aerosol-generating article according to claim 2, wherein: The tubular structure is a fiber tube or a metal tube.

4. An aerosol generating article according to claim 2 or 3, characterized in that The supporting section is a supporting tube having a first hollow channel, and the cooling section is a cooling tube having a second hollow channel; The outer dimensions of the cross section of the support tube are the same as the outer dimensions of the cross section of the cooling tube; and / or, The cross-sectional dimension of the first hollow channel is smaller than or equal to the cross-sectional dimension of the second hollow channel.

5. An aerosol generating article according to claim 2 or 3, characterized in that The support section is a support tube having a first hollow channel and a first airflow channel, wherein the first airflow channel is located around the first hollow channel and passes through two opposite ends of the support tube along the first direction; and / or, The cooling section is a cooling tube having a second hollow channel and a second air flow channel. The second air flow channel is located around the second hollow channel and runs through two opposite ends of the cooling tube along the first direction.

6. An aerosol generating article according to claim 5, characterized in that The support section is the support tube; The support tube includes a first outer circular layer, a first inner circular layer sleeved in the first outer circular layer, and a first corrugated layer connected between the first outer circular layer and the first inner circular layer, wherein the cross section of the first corrugated layer is wavy; the interior of the first inner circular layer is a first hollow channel, and the first outer circular layer, the first inner circular layer and the first corrugated layer jointly define a plurality of the first airflow channels; and / or, The aerosol-generating article further comprises a flavourant disposed within the first airflow channel.

7. The aerosol-generating article of claim 5, wherein: The cooling section is the cooling pipe; The cooling tube includes a second outer circular layer, a second inner circular layer sleeved in the second outer circular layer, and a second corrugated layer connected between the second outer circular layer and the second inner circular layer, the cross-section of the second corrugated layer is wavy; the interior of the second inner circular layer is a second hollow channel, the second outer circular layer, the second inner circular layer and the second corrugated layer jointly define a plurality of second airflow channels; and / or the aerosol generating product also includes a fragrance substance arranged in the second airflow channel.

8. An aerosol generating article according to claim 2 or 3, characterized in that The support section is a support tube having a first hollow channel, a portion of the outer side wall of the support tube is recessed to form a groove, and the groove runs through two opposite ends of the support tube along the first direction; and / or, The cooling section is a cooling tube having a second hollow channel, and a portion of the outer wall of the cooling tube is recessed to form a groove, and the groove runs through two opposite ends of the cooling tube along the first direction.

9. An aerosol generating article according to claim 2 or 3, characterized in that The support section is a support tube having a first hollow channel, the support tube comprising a first tube wall and a metal coating, the first tube wall defines the first hollow channel, and at least one of the inner wall surface and the outer wall surface of the first tube wall is coated with the metal coating.

10. An aerosol-generating article according to claim 9, characterized in that The material of the metal coating is one of aluminum, copper and tin, or a combination of at least two of them.

11. The aerosol-generating article of claim 9, wherein: The cooling section is a cooling tube having a second hollow channel, and the cross-sectional size of the first hollow channel is equal to or unequal to the cross-sectional size of the second hollow channel.

12. An aerosol generating article according to claim 2 or 3, characterized in that The support section is a support tube having a first hollow channel, the support tube includes a first tube wall and a partition, the first tube wall defines the first hollow channel, and the partition is arranged in the first hollow channel to separate the first hollow channel into a plurality of third airflow channels.

13. An aerosol-generating article according to claim 2 or 3, characterized in that One of the supporting section and the cooling section is the tubular structure, and the other is a solid fiber structure.

14. An aerosol-generating article according to any one of claims 1 to 3, characterized in that The filter section is a solid fiber structure or a porous structure.

15. An aerosol-generating article according to any one of claims 1 to 3, characterized in that The aerosol generating matrix segment, the supporting segment, the cooling segment and the filtering segment are coaxially arranged cylinders and the aerosol generating matrix segment is an integrated structure, and the first direction is the axial direction of the aerosol generating matrix segment, the supporting segment, the cooling segment and the filtering segment.

16. An aerosol-generating article according to any one of claims 1 to 3, characterized in that The aerosol-generating article further comprises an outer wrapping layer, which covers the outer peripheral sides of the aerosol-generating substrate segment and the functional segment.

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