Aerosol generating product and aerosol generating system

Abstract

The embodiment of the invention provides an aerosol generating product and an aerosol generating system. The aerosol generating product comprises a medium section, a functional section, a cooling section and a filter tip section which are arranged in the first direction. The draw resistance of the functional section is different from that of the medium section; the number of at least one of the functional sections and the cooling sections is two, and the functional sections and the cooling sections are located between the medium section and the filter tip section. The medium section is of an integrated structure, at least one first air channel hole is formed in the medium section, and the first air channel hole penetrates through at least one end, in the first direction, of the medium section. According to the aerosol generating product provided by the embodiment of the invention, the suction resistance of the aerosol generating product is kept in a proper range by arranging the functional sections of which the suction resistance is different from that of the medium section, and the number of the functional sections and the number of the cooling sections are controlled, so that the number of at least one of the functional sections and the cooling sections is two; the suction resistance of the aerosol generating product and the temperature of the aerosol are conveniently controlled, and the use experience of a user is improved.

Description

Technical Field

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

[0002] This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] Smoking articles include smoking articles that form aerosols by ignition and smoking articles that form aerosols by heating without burning. In a typical smoking article that heats without burning, it contains an aerosol-generating substrate that can volatilize when heated to generate an aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated to a degree just sufficient to emit a fragrance. The aerosol-generating substrate does not burn, but instead loads an atomizer and releases the atomizer through high-temperature heating to form smoke when used.

[0004] Among them, the inhalation resistance of the smoking product during the inhalation process is an important indicator of the smoking product. In the prior art, the inhalation resistance of the smoking product is too small or too large, thereby reducing the user's use experience. Summary of the invention

[0005] In view of this, the present application hopes to provide an aerosol generating product and an aerosol generating system with suitable inhalation resistance.

[0006] To achieve the above-mentioned purpose, the embodiment of the present application provides an aerosol generating product, comprising a medium section, a functional section, a cooling section and a nozzle section arranged along a first direction;

[0007] The suction resistance of the functional segment is different from the suction resistance of the medium segment, and the mouthpiece segment can be used to filter and / or cool the aerosol;

[0008] The number of at least one of the functional section and the cooling section is two, and both the functional section and the cooling section are located between the medium section and the nozzle section;

[0009] The medium segment is an integrated structure, and has at least one first airway hole inside the medium segment, and the first airway hole penetrates at least one end of the medium segment along the first direction.

[0010] In one embodiment, the number of the cooling sections is two, one of which is a first cooling section, and the other is a second cooling section.

[0011] In one embodiment, the functional section is located between the first cooling section and the second cooling section; or, the first cooling section and the second cooling section are located between the functional section and the nozzle section.

[0012] In one embodiment, one of the first cooling section and the second cooling section is a first hollow structure, and the other is a second hollow structure; the first hollow structure has a first cavity running through both ends of the first hollow structure along a first direction, and the second hollow structure has a second cavity running through both ends of the second hollow structure along the first direction, and on a plane perpendicular to the first direction of the aerosol generating product, a cross-sectional area of ​​the second cavity is smaller than a cross-sectional area of ​​the first cavity.

[0013] In one embodiment, the first hollow structure further includes a barrier, which is disposed in the first cavity and divides the first cavity into a plurality of sub-cavities.

[0014] In one implementation, the number of the functional segments is two, one of which is a first functional segment, and the other is a second functional segment.

[0015] In one embodiment, the temperature reduction section is located between the first functional section and the second functional section; or, the first functional section and the second functional section are located between the temperature reduction section and the nozzle section.

[0016] In one embodiment, the functional segment is a mesh structure, a folded structure, a pleated structure or a tow structure.

[0017] In one embodiment, the medium segment, the functional segment, the cooling segment and the nozzle segment are separable structures, and the functional segment is an integrated structure.

[0018] In one embodiment, the functional segment has at least one second airway hole inside, and the second airway hole runs through at least one end of the functional segment along the first direction.

[0019] In one embodiment, the nozzle rod segment is a filter segment, or the nozzle rod segment is a third hollow structure, and the third hollow structure has a third cavity that runs through both ends of the third hollow structure along the first direction.

[0020] In one embodiment, the medium segment, the functional segment, the cooling segment and the nozzle segment are cylindrical and coaxially arranged, and the first direction is the axial direction of the medium segment, the functional segment, the cooling segment and the nozzle segment.

[0021] An embodiment of the present invention further provides an aerosol generating system, comprising an aerosol generating device and the aerosol generating product of any one of the aforementioned embodiments, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

[0022] The embodiment of the present application provides an aerosol generating product, which includes a medium segment, a functional segment, a cooling segment and a mouthpiece segment arranged along a first direction. The medium segment generates an aerosol when heated, and the mouthpiece segment can be used to filter and / or cool the aerosol. On the one hand, the embodiment of the present application sets a functional segment, and the suction resistance of the functional segment is different from the suction resistance of the medium segment, which is conducive to maintaining the suction resistance of the aerosol generating product within an appropriate range, that is, the suction resistance of the aerosol generating product can be made appropriate. On the other hand, by controlling the number of functional segments and cooling segments, so that the number of at least one of the functional segments and cooling segments is two, it is further convenient to control the suction resistance of the aerosol generating product and the temperature of the aerosol, thereby improving the user's experience. In addition, the medium segment is an integrated structure, for example, the medium segment can be molded by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment and improve the stability of aerosol release and suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0024] Figure 2 for Figure 1 A cross-sectional view of an aerosol-generating article shown, wherein the dashed arrows indicate the direction of airflow in the aerosol-generating article;

[0025] Figure 3 is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0026] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0027] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0028] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0029] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0030] Figure 8 is a schematic cross-sectional view of an aerosol generating article in a seventh embodiment of the present application;

[0031] Fig. 9 is a schematic cross-sectional view of an aerosol generating article in an eighth embodiment of the present application;

[0032] Fig.10 for Figure 5 The structural schematic diagram of the first cooling section shown;

[0033] Fig.11 for Figure 6 Schematic diagram of the structure of the functional segments shown in .

[0034] Description of Reference Numerals

[0035] 10. Medium section; 10a. First airway hole; 20. Functional section; 20a. Second airway hole; 20b. Interlayer airway; 20c. Fourth cavity; 21. First functional section; 22. Second functional section; 30. Cooling section; 30a. First cavity; 30b. Second cavity; 30c. Barrier; 31. First cooling section; 32. Second cooling section; 40. Mouthpiece section; 41. Third hollow structure; 41a. Third cavity; 50. Wrapping layer; 100. Aerosol generating product. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0037] In the description of this application, the "first direction" orientation or position relationship is based on the attached Figure 1 and Figure 2 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] The present application provides an aerosol generating product. Figures 1 to 10 , comprising a medium segment 10, a functional segment 20, a cooling segment 30 and a nozzle segment 40 arranged along a first direction, and the functional segment 20 and the cooling segment 30 are both located between the medium segment 10 and the nozzle segment 40. That is, the medium segment 10 and the nozzle segment 40 are respectively located at two ends of the aerosol generating article 100, wherein the medium segment 10 is the far lip end of the aerosol generating article 100, and the nozzle segment 40 is the near lip end of the aerosol generating article 100.

[0039] The proximal lip end refers to the end of the aerosol generating article 100 that is close to the user when the user uses the aerosol generating article 100 , and the distal lip end refers to the end of the aerosol generating article 100 that is far away from the user when the user uses the aerosol generating article 100 .

[0040] The draw resistance of the functional segment 20 is different from the draw resistance of the medium segment 10 , so the draw resistance of the aerosol generating article 100 can be kept within an appropriate range by controlling the draw resistance of the functional segment 20 itself.

[0041] It can be understood that, since the aerosol flows through the functional section 20 , the functional section 20 can also play a certain role in cooling the aerosol.

[0042] The cooling section 30 is located between the filter section and the medium section 10 , and may be, for example, a hollow paper tube, a hollow acetate fiber structure, a corrugated paper tube, etc. The cooling section 30 is mainly used to reduce the aerosol temperature.

[0043] The mouthpiece segment 40 can be used to filter and / or cool the aerosol.

[0044] The mouthpiece segment 40 is located at the proximal lip end of the aerosol generating product 100, and can be made of materials such as acetate fiber, PET (polyethylene terephthalate), polysaccharide, and acrylic fiber. It is mainly used for filtering and, together with the functional segment 20, adjusts the suction resistance of the aerosol generating product 100 so that the suction resistance of the aerosol generating product 100 meets the design requirements. The mouthpiece segment 40 can also directly use a hollow paper tube to extend the flow path of the aerosol and reduce the temperature of the aerosol.

[0045] The number of at least one of the functional sections 20 and the cooling sections 30 is two. For example, in some embodiments, the number of the functional sections 20 is two, and the number of the cooling sections 30 can be one or more. In other embodiments, the number of the cooling sections 30 is two, and the number of the functional sections 20 can be one or more.

[0046] The aerosol generating article 100 relies on the medium segment 10 to generate aerosol, and the functional segment 20, the cooling segment 30 and the mouthpiece segment 40 are not used to generate aerosol.

[0047] It should be noted that the aerosol generating product 100 of the embodiment of the present application can be used for inhalation by ignition or by heating without burning. In the embodiment of the present application, the aerosol generating product 100 is used for inhalation by heating without burning as an example.

[0048] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0049] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0050] In the embodiment of the present application, the medium segment 10 is substantially cylindrical, which may be a cylindrical shape (i.e., a circular cross-sectional shape), a prism shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder shape (i.e., an elliptical cross-sectional shape), etc., without limitation.

[0051] The medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40 are separable structures, and the multiple segments are not connected together by mechanical, physical structures or adhesives, but two of them can be in contact. The medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40 are a combined structure. Therefore, different medium segments 10, different functional segments 20, different cooling segments 30 and different nozzle segments 40 can be reasonably matched to meet the different suction needs of customers.

[0052] Exemplary, the medium section 10 is a particle combination, also referred to as a powder combination, a kind of reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agent, tobacco. The medium section 10 is an integrated structure, for example, an integrated structure can be formed by extrusion, injection molding or die-casting molding process. Wherein, extrusion molding refers to adding a raw material mixture into 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 a processing method of various cross-section products or semi-finished products by the mold of the extruder discharge port. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium section 10 is heated and sucked or stops being heated, it is an integrated medium, and it is not easy to disintegrate and fall, and the problem that the thin sheet, filament or scattered particle medium section 10 in the prior art appears, such as the problem of thin sheet loosening, filamentous component, particle component falling off, being difficult to clean, and the problem of uneven components.

[0053] The interior of the medium section 10 has at least one first airway hole 10a, see Figures 2 to 9 The first air channel hole 10a passes through at least one end of the medium segment 10 along the first direction.

[0054] The inside of the medium segment 10 has at least one first air passage hole 10 a . The inside of the medium segment 10 may have one first air passage hole 10 a , or the inside of the medium segment 10 may have multiple first air passage holes 10 a .

[0055] It should be noted that the “multiple” mentioned in the embodiments of the present application refers to a number of two or more.

[0056] In some embodiments, the first air channel holes 10a penetrate the same end of the medium segment 10 along the first direction, and the other end is closed.

[0057] In other embodiments, a portion of the first air passage holes 10a penetrates one end of the medium segment 10 along the first direction, and another portion of the first air passage holes 10a penetrates the other end of the medium segment 10 along the first direction.

[0058] In some other embodiments, please refer to Figures 2 to 9 Each first airway hole 10a runs through both ends of the medium segment 10 along the first direction, that is, the first airway hole 10a extends along the first direction of the medium segment 10, and the airflow can flow from one end of the medium segment 10 through the first airway hole 10a to the other end of the medium segment 10. Preferably, the first airway hole 10a is parallel to the central axis of the medium segment 10.

[0059] The hole wall of the first airway hole 10a constitutes the inner surface of the medium segment 10. The first airway hole 10a can increase the inner surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. In addition, the medium segment 10 generates aerosol after heating, and the aerosol is collected in the first airway hole 10a and transported to the suction end under the action of the suction negative pressure. The first airway hole 10a can reduce the suction resistance of the user and improve the user experience. It should be noted that the suction resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the medium segment 10, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the medium segment 10, the greater the suction resistance experienced by the user.

[0060] It should be noted that the shape of the first airway hole 10a is not limited here. For example, on a plane perpendicular to the first direction of the medium segment 10, the cross-sectional shape of the first airway hole 10a includes but is not limited to a circle (such as Figures 2 to 9 ), elliptical, racetrack or polygonal, wherein the polygon includes regular or irregular polygons.

[0061] Among them, the runway shape refers to: a shape similar to an athletics track, composed of two semicircles and two parallel straight edges alternately connected.

[0062] The cross-sectional shape of the first airway hole 10 a refers to the cross-sectional shape of the first airway hole 10 a cut along a plane perpendicular to the first direction of the medium segment 10 .

[0063] In addition, the shapes of the cross sections of the first airway holes 10a can be exactly the same, or the shapes of the cross sections of at least two of the first airway holes 10a can be different. For example, the shape of the cross section of at least one of the first airway holes 10a can be circular, and the shape of the cross section of at least one of the first airway holes 10a can be polygonal.

[0064] For example, see Figures 1 to 9 The aerosol generating article 100 includes a wrapping layer 50 , which wraps around the circumferential surface of the medium segment 10 , the functional segment 20 , the cooling segment 30 and the mouthpiece segment 40 .

[0065] The wrapping layer 50 has a certain hardness and can provide a certain degree of protection for the medium segment 10, thereby reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 coming into contact with the air and becoming damp and deteriorating. At the same time, it also reduces the probability of the medium segment 10 coming into contact with other components in the aerosol generating device and causing contamination.

[0066] It should be noted that the medium segment 10 and the wrapping layer 50 can be an integrated structure. That is, the medium segment 10 and the wrapping layer 50 are different parts of an integral structure. In this way, on the one hand, the relative position of the medium segment 10 and the wrapping layer 50 is fixed, which can reduce the probability of the medium segment 10 and the wrapping layer 50 being separated due to temperature changes, vibrations and other factors during the use of the aerosol generating product 100; on the other hand, the medium segment 10 and the wrapping layer 50 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0067] For example, the integral structure of the media portion and the wrap layer 50 is formed by a co-extrusion process.

[0068] Of course, the medium segment 10 and the wrapping layer 50 may also be a split structure.

[0069] An embodiment of the present invention further provides an aerosol generating system, including an aerosol generating device and an aerosol generating product provided in the embodiment of the present application. The aerosol generating device includes a heating element (not shown), which is used to heat the medium segment 10 to generate an aerosol.

[0070] Specifically, the aerosol generating device includes a shell and a power supply assembly arranged in the shell. The shell has a containing chamber. The power output part of the power supply assembly is arranged in the containing chamber or around the side wall of the containing chamber. When the aerosol generating product 100 is inserted into the containing chamber at a position corresponding to the first direction range where the medium segment 10 is located, the power output part transmits power to the heating assembly in a contact or non-contact manner. The heating assembly receives energy from the outside and generates heat, thereby heating the medium segment 10 and generating an aerosol.

[0071] In the embodiment of the present application, the first direction does not specifically refer to the direction in which the outer contour of the medium segment 10 is the longest. Specifically, the direction in which the aerosol generating article 100 is inserted into the containing chamber and the direction in which the aerosol generating article 100 is taken out of the containing chamber are both parallel to the first direction. The length of the medium segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0072] For example, when the appearance of the medium segment 10 is cylindrical, the first direction is the axial direction of the medium segment 10. It should be noted that even when the axial length of the medium segment 10 is less than its diameter, the first direction of the medium segment 10 is still the axial direction. For another example, when the appearance of the medium segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the direction in which the aerosol generating article 100 is taken out of the containing chamber. The first direction of the medium segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0073] The embodiment of the present application provides an aerosol generating product, the aerosol generating product 100 includes a medium segment 10, a functional segment 20, a cooling segment 30 and a mouthpiece segment 40 arranged along a first direction, the medium segment 10 generates an aerosol when heated, and the mouthpiece segment 40 can be used to filter and / or cool the aerosol. On the one hand, the embodiment of the present application sets the functional segment 20, and the suction resistance of the functional segment is different from the suction resistance of the medium segment, which is conducive to maintaining the suction resistance of the aerosol generating product 100 within an appropriate range, that is, the suction resistance of the aerosol generating product can be appropriate. On the other hand, by controlling the number of the functional segment 20 and the cooling segment 30, so that the number of at least one of the functional segment 20 and the cooling segment 30 is two, it is further convenient to control the suction resistance of the aerosol generating product 100 and the temperature of the aerosol, thereby improving the user experience. In addition, the medium segment 10 is an integrated structure, for example, the medium segment 10 can be formed by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment 10 and improve the stability of aerosol release and suction.

[0074] Exemplarily, the medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40 are separable structures, thus, different medium segments 10, different functional segments 20, different cooling segments 30 and different nozzle segments 40 can be reasonably matched to meet the customer's needs for different suction resistances and temperatures, further improving the user's experience.

[0075] The specific components of the medium segment 10 are not limited here. For example, in one embodiment, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0076] The plant component is used to generate an aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can enhance the release of aroma during the suction process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 10 porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component etc. constitute a stable mixture to avoid a loose structure.

[0077] Exemplarily, the plant component can be one or more combinations of powders formed after crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of flavor. Endogenous substances in plant components can produce physiological satisfaction for users. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0078] Exemplarily, 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, talcum powder, 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 medium section 10, thereby increasing the aerosol release rate. 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 plant component powder, reduce the friction between the plant component powders, make the overall density of the plant component powder distribution more uniform, and can also reduce the pressure required for the extrusion molding process and reduce the wear of the die. The emulsifier includes one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. The emulsifier 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 the product.

[0079] Exemplarily, the smoke-generating agent component may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, glyceryl tributyrate); a monocarboxylic acid; a dicarboxylic 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 esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) in one or more combinations.

[0080] Exemplarily, the adhesive component is in close contact with the interface of the component raw materials by wetting, generating intermolecular attraction, thereby playing a role in bonding the component raw materials, such as powders, liquids, etc. The adhesive component can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the medium segment 10 and is harmless to the human body.

[0081] Exemplarily, the flavor component is used to provide a characteristic aroma, such as hay aroma, roasted sweet aroma, solid or liquid substances of nicotine. The flavor component may include one or more combinations of tobacco or other plants, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor component may include monomeric flavor substances, such as one or more combinations of megastigmatriene, neophytadiene, geraniol, nerol, etc.

[0082] It should be noted that the medium segment 10 is formed with micropores, and the micropores are connected to each other and form a micro-airway connected to the first airway hole 10a. In other words, the micro-airway is connected to the first airway hole 10a, and since the micro-airway is formed by the connection between the micropores, the micropores are connected to the channel 10a. In addition, it can be understood that the connection between the micropores can be that some of the micropores are connected and some of the micropores are not connected; or all the micropores can be connected to each other. For example, in an embodiment in which the medium segment 10 is a particle combination, the gaps between the particles constitute the micropores. The size of the micropores is determined by the gaps between the particles.

[0083] The first airway hole 10a and the micro-airway can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium of the medium segment 10 releases aerosols when heated, and is collected to the first airway hole 10a through the gaps between the wall materials or the micro-airway. The aerosols released by the atomized medium exposed to the first airway hole 10a (i.e., the atomized medium located on the inner wall surface of the first airway hole 10a) can be directly released to the first airway hole 10a. The aerosols between adjacent first airway holes 10a can also circulate with each other through the micro-airway and be transported to the suction end under the action of the suction negative pressure.

[0084] For example, in some embodiments, please refer to Figure 7 and Figure 8 , the functional segment 20 can be an integrated structure. In one embodiment, the integrated functional segment 20 manufactured by the extrusion molding process has the function of adjusting the suction resistance, and also has the function of temperature resistance and preventing thermal collapse. In addition, according to the product style characteristics, flavors can be loaded to increase the richness of the aerosol. Among them, extrusion molding can be, for example, a processing method in which a raw material mixture constituting the functional segment 20 is added to an extruder, and the material mixture is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0085] In other embodiments, the functional section 20 may also be an integral structure formed by injection molding, die casting or other processes.

[0086] For example, in some embodiments, the composition of the functional segment 20 is the same as that of the medium segment 10. In this way, during use, the functional segment 20 will not bring bad smells and avoid affecting the taste of the aerosol. In addition, the composition of the functional segment 20 is the same as that of the medium segment 10, which is more conducive to the functional segment 20 and the medium segment 10 being manufactured by the same manufacturing process and raw materials, thereby improving production efficiency.

[0087] Of course, in other embodiments, the composition of the functional segment 20 is different from that of the medium segment 10. The functional segment 20 can be made of different materials such as plant materials, polysaccharides, silica gel, resin, etc.

[0088] The functional section 20 has at least one second airway hole 20a inside, see Figure 7 and Figure 8 The second airway hole 20a passes through at least one end of the functional segment 20 along the first direction.

[0089] The functional segment 20 has at least one second airway hole 20 a inside. The functional segment 20 may have one second airway hole 20 a inside, or may have multiple second airway holes 20 a inside.

[0090] In some embodiments, the second airway holes 20a penetrate the same end of the functional section 20 along the first direction, and the other end is closed.

[0091] In other embodiments, a portion of the second airway holes 20a penetrates one end of the functional segment 20 along the first direction, and another portion of the second airway holes 20a penetrates the other end of the functional segment 20 along the first direction.

[0092] In some other embodiments, please refer to Figure 7 and Figure 8 Each second airway hole 20a runs through both ends of the functional segment 20 along the first direction, that is, the second airway hole 20a extends along the first direction of the functional segment 20, and the airflow can flow from one end of the functional segment 20 through the second airway hole 20a to the other end of the functional segment 20. Preferably, the second airway hole 20a is parallel to the central axis of the functional segment 20.

[0093] It should be noted that the first airway hole 10a and the second airway hole 20a are holes in a macroscopic sense, and the micropores are holes in a microscopic sense. The cross-sectional area of ​​the first airway hole 10a is much larger than that of the micropores.

[0094] It should be noted that the inhalation resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the functional segment 20, the smaller the inhalation resistance experienced by the user. The greater the flow resistance of the aerosol in the functional segment 20, the greater the inhalation resistance experienced by the user.

[0095] The functional segment 20 adjusts the suction resistance by setting the second airway holes 20a and controlling the design parameters of the second airway holes 20a, for example, by controlling the number of the second airway holes 20a of the functional segment 20, the cross-sectional area (hydraulic diameter) of the second airway holes 20a, the cross-sectional area of ​​the functional segment 20 and other parameters.

[0096] When the functional section 20 is provided with a plurality of second airway holes 20a, the aerosol can exchange heat with the hole walls of the second airway holes 20a when flowing through the second airway holes 20a. The temperature of the aerosol can be effectively reduced by using multi-airway heat exchange.

[0097] It should be noted that the shape of the second airway hole 20a is not limited here. For example, on a plane perpendicular to the first direction of the functional section 20, the cross-sectional shape of the second airway hole 20a includes but is not limited to a circle (such as Figure 7 and Figure 8 ), at least one of an ellipse, a racetrack, a strip, a polygon and a fan, wherein the polygon includes a regular or irregular polygon.

[0098] The cross-sectional shape of the second airway hole 20 a refers to the cross-sectional shape of the second airway hole 20 a cut along a plane perpendicular to the first direction of the functional section 20 .

[0099] In addition, the shapes of the cross sections of the second airway holes 20a can be exactly the same, or the shapes of the cross sections of at least two of the second airway holes 20a can be different. For example, the shape of the cross section of at least one of the second airway holes 20a can be circular, and the shape of the cross section of at least one of the second airway holes 20a can be polygonal.

[0100] Exemplarily, the functional section 20 may be a mesh structure, a folded structure, a pleated structure, a solid acetate fiber structure, or a hollow acetate fiber structure.

[0101] The functional segment 20 of the mesh structure, that is, the size of the functional segment 20 along the first direction is small, and a plurality of second airway holes 20a extending along the first direction are formed thereon. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating article 100, the size of the functional segment 20 along the first direction can be effectively reduced, thereby facilitating the reduction of the overall size of the aerosol generating article 100 and making the structure more compact.

[0102] The specific method of forming the functional segment 20 of the mesh-like structure is not limited. For example, it is formed by interweaving a plurality of crisscrossing filamentary structures, and the second airway holes 20a are formed between the interlaced filamentary structures.

[0103] For another example, the functional segment 20 of the mesh structure is in the shape of a thin plate, and the second airway hole 20 a penetrates the functional segment 20 along the thickness direction of the functional segment 20 .

[0104] In other embodiments, when the functional segment 20 of the mesh structure is in the shape of a thin plate, a flange may be formed at the edge of the functional segment 20, and the functional segment 20 abuts against the medium segment 10, the cooling segment 30 or the nozzle segment 40 through the flange.

[0105] The specific material of the functional segment 20 of the mesh structure is not limited. For example, the material can be a metal mesh, a first hollow structure covered with high-permeability paper / film, etc., so that the functional segment 20 has a certain temperature resistance. A plurality of second airway holes 20a are arranged in the functional segment 20, and the aperture of the second airway hole 20a is smaller than the aperture of the first airway hole 10a, so that the functional segment 20 has the function of adjusting the suction resistance of the aerosol generating product 100. At the same time, the aerosol can collide and exchange heat with the functional segment 20, thereby having a cooling and / or filtering effect on the aerosol.

[0106] See also Figure 6 and Fig.11The functional section 20 is a folding structure or a pleated structure, and the folding structure or the pleated structure has an interlayer air channel 20b extending along the first direction. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating product 100, the flow path of the aerosol and the contact area with the functional section 20 can be lengthened, thereby having the effect of initially cooling the aerosol. In addition, the functional section 20 of the folding structure or the pleated structure also has a supporting and filtering function.

[0107] It should be noted that the specific material of the functional segment 20 of the foldable structure or the pleated structure is not limited here. For example, polylactic acid (PLA), paper, etc. can be selected and gathered to form a shape. By controlling the porosity, the suction resistance of the aerosol generating product 100 can be adjusted.

[0108] The functional section 20 of the foldable structure can be folded from acetate paper or the like. Acetate paper is formed by weaving acetate fibers. Acetate fibers, also known as cellulose acetate or cellulose acetate, are chemically modified polymer compounds obtained by esterifying the hydroxyl groups in cellulose molecules with acetate, including diacetate fibers and triacetate fibers, which have good acid and alkali resistance and organic solvent resistance.

[0109] The functional segment 20 of the pleated structure can be formed by gathering polylactic acid (PLA), paper material, etc. to form a curved wavy interlayer air channel 20b, or an interlayer air channel 20b with pleats on the surface of the air channel.

[0110] In addition, the functional section 20 can be supported by a phase change material, which absorbs heat by phase change to enhance the effect of lowering the aerosol temperature. The phase change material is, for example, polylactic acid (PLA), which can phase change, melt and absorb heat when a 120°C steam flow passes through.

[0111] The functional segment 20 is a tow-type structure, for example, a tow-type structure formed by arranging a plurality of tows side by side and bundling them.

[0112] For example, see Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 The tow-type structure is, for example, a solid acetate fiber structure. The functional segment 20 of the solid acetate fiber structure may be a solid structure formed by arranging a plurality of acetate fiber tows side by side. The gaps between the tows of the solid acetate fiber structure form airflow pores, and the aerosol generated by the medium segment 10 can pass through the solid acetate fiber structure through the airflow pores.

[0113] See also Figure 3 , Figure 8 and Fig. 9The tow-type structure is, for example, a hollow acetate fiber structure. The functional segment 20 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber tows side by side. The gaps between the tows of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a fourth cavity 20c that runs through both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium segment 10 can pass through the hollow acetate fiber structure through the airflow pores and the fourth cavity 20c.

[0114] It should be noted that the air flow pores formed in the solid acetate fiber structure and the hollow acetate fiber structure can be pores in the macroscopic sense; they can also be pores in the microscopic sense, that is, they cannot be directly identified by the naked eye.

[0115] For example, see Figures 2 to 7 , the number of cooling sections 30 is two, one of the cooling sections 30 is a first cooling section 31, and the other cooling section 30 is a second cooling section 32. At this time, the number of functional sections 20 can be one or more. When the number of cooling sections 30 is two, the embodiment of the present application is described by taking the number of functional sections 20 as one as an example.

[0116] The structures of the two cooling sections 30 may be the same or different.

[0117] By providing two cooling sections 30, the cooperation of the two cooling sections 30 can help to buffer the aerosol and reduce the temperature of the aerosol, and make the aerosol fully mixed before entering the oral cavity. In other words, by providing two cooling sections 30, it is easy to meet the design requirements for temperature.

[0118] It should be noted that the locations of the two cooling sections 30 and the functional section 20 are not limited here. Figures 2 to 6 , the functional section 20 is located between the first cooling section 31 and the second cooling section 32. That is, the aerosol generating article 100 includes the medium section 10, the first cooling section 31, the functional section 20, the second cooling section 32 and the mouthpiece section 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 includes the medium section 10, the first cooling section 31, the functional section 20, the second cooling section 32 and the mouthpiece section 40 from the far lip end to the near lip end.

[0119] The aerosol generated by the heating medium section 10 first flows through the first cooling section 31 for cooling, then flows through the functional section 20 for adjusting the inhalation resistance, and then flows through the second cooling section 32 for cooling again. After cooling again, the aerosol flows through the mouthpiece section 40, which can filter out large particle components and undesirable impurities in the aerosol and / or cool the aerosol. That is, the aerosol generated by the heating medium section 10 is cooled, adjusted for inhalation resistance, cooled again, filtered and / or cooled by the user in sequence through the first cooling section 31, the functional section 20, the second cooling section 32 and the mouthpiece section 40.

[0120] In some other embodiments, please refer to Figure 7 , the first cooling section 31 and the second cooling section 32 are located between the functional section 20 and the mouthpiece section 40. That is, the aerosol generating article 100 comprises the medium section 10, the functional section 20, the first cooling section 31, the second cooling section 32 and the mouthpiece section 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 is the medium section 10, the functional section 20, the first cooling section 31, the second cooling section 32 and the mouthpiece section 40 from the far lip end to the near lip end.

[0121] That is, the aerosol generated by the heating medium segment 10 first flows through the functional segment 20 for adjusting the inhalation resistance, then flows through the first cooling segment 31 and the second cooling segment 32 for two coolings, and the aerosol after two coolings flows through the mouthpiece segment 40, which can filter out large particle components and undesirable impurities in the aerosol and / or cool the aerosol. That is, the aerosol generated by the heating medium segment 10 passes through the functional segment 20, the first cooling segment 31, the second cooling segment 32 and the mouthpiece segment 40 in sequence for adjusting the inhalation resistance, two coolings and filtering and / or cooling before being inhaled by the user.

[0122] See also Figures 2 to 7 One of the first cooling section 31 and the second cooling section 32 is a first hollow structure, and the other is a second hollow structure; the first hollow structure has a first cavity 30a that runs through both ends of the first hollow structure along the first direction, and the second hollow structure has a second cavity 30b that runs through both ends of the second hollow structure along the first direction, and on a plane perpendicular to the first direction of the aerosol generating article 100, a cross-sectional area of ​​the second cavity 30b is smaller than a cross-sectional area of ​​the first cavity 30a.

[0123] The first hollow structure and the second hollow structure can be used to buffer the aerosol and reduce the temperature of the aerosol by respectively providing the first cavity 30a and the second cavity 30b.

[0124] In a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the second cavity 30b is smaller than the cross-sectional area of ​​the first cavity 30a. That is, the wall thickness of the second hollow structure is greater than the wall thickness of the first hollow structure, and thus, the structural strength of the second hollow structure is greater than the structural strength of the first hollow structure. In other words, the second hollow structure can not only buffer the aerosol and reduce the temperature of the aerosol, but also enhance the supporting function.

[0125] For example, see Figure 5 and Fig.10The first hollow structure further includes a barrier 30c, which is disposed in the first cavity 30a and divides the first cavity 30a into a plurality of sub-cavities. By providing the barrier 30c, on the one hand, the structural strength of the first hollow structure can be improved, thereby increasing the supporting force of the first hollow structure and preventing the medium segment 10 from moving during the suction process. In addition, by providing the barrier 30c to divide the first cavity 30a into a plurality of sub-cavities, heat exchange can be performed using the plurality of sub-cavities, thereby improving the cooling effect.

[0126] Specifically, the barrier 30c is in the shape of a rib, and there are multiple barrier members 30c. One ends of the multiple barrier members 30c are connected to each other, and the other ends are connected to the side wall of the first cavity 30a. The multiple barrier members 30c are radially distributed from the center of the first cavity 30a, and divide the first cavity 30a into multiple sub-cavities.

[0127] For example, see Figure 8 and Fig. 9 , the number of functional segments 20 is two, one of which is a first functional segment 2120, and the other functional segment 20 is a second functional segment 2220. At this time, the number of cooling segments 30 can be one or more. When the number of functional segments 20 is two, the embodiment of the present application is described by taking the number of cooling segments 30 as one as an example.

[0128] The structures of the two functional sections 20 may be the same or different.

[0129] By providing two functional sections 20 , the two functional sections 20 cooperate with each other, which can help to adjust the suction resistance, thereby making it easier to meet the design requirements for the suction resistance.

[0130] It should be noted that the locations of the two functional sections 20 and the cooling section 30 are not limited here. Figure 8 , the cooling section 30 is located between the first functional section 2120 and the second functional section 2220. That is, the aerosol generating article 100 includes the medium section 10, the first functional section 2120, the cooling section 30, the second functional section 2220 and the mouthpiece section 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 includes the medium section 10, the first functional section 2120, the cooling section 30, the second functional section 2220 and the mouthpiece section 40 from the far lip end to the near lip end.

[0131] The aerosol generated by the heating medium segment 10 first flows through the first functional segment 2120 for suction resistance adjustment, then flows through the cooling segment 30 for cooling, then flows through the second functional segment 2220 for suction resistance adjustment again, and the aerosol after passing through the second functional segment 2220 flows through the mouthpiece segment 40, which can filter out large particle components and undesirable impurities in the aerosol and / or cool the aerosol. That is, the aerosol generated by the heating medium segment 10 passes through the first functional segment 2120, the cooling segment 30, the second functional segment 2220 and the mouthpiece segment 40 in sequence for suction resistance adjustment, cooling, suction resistance adjustment again, filtering and / or cooling before being inhaled by the user.

[0132] In some other embodiments, please refer to Fig. 9 , the first functional segment 2120 and the second functional segment 2220 are located between the cooling segment 30 and the mouthpiece segment 40. That is, the aerosol generating article 100 comprises the medium segment 10, the cooling segment 30, the first functional segment 2120, the second functional segment 2220 and the mouthpiece segment 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 is the medium segment 10, the cooling segment 30, the first functional segment 2120, the second functional segment 2220 and the mouthpiece segment 40 from the far lip end to the near lip end.

[0133] That is, the aerosol generated by the heating medium segment 10 first flows through the cooling segment 30 for cooling, then flows through the first functional segment 2120 and the second functional segment 2220 in sequence for two suction resistance adjustments, and the aerosol after passing through the second functional segment 2220 flows through the mouthpiece segment 40, which can filter out large particle components and undesirable impurities in the aerosol and / or cool the aerosol. That is, the aerosol generated by the heating medium segment 10 is cooled, suction resistance adjusted and filtered, and / or cooled by the user after passing through the cooling segment 30, the first functional segment 2120, the second functional segment 2220, and the mouthpiece segment 40 in sequence.

[0134] The specific structure of the nozzle rod segment 40 is not limited here. For example, in one embodiment, please refer to Figures 2 to 8 The mouthpiece section 40 is a filter section, which can be made of materials such as acetate fiber, PET (polyethylene terephthalate), polysaccharide, and acrylic fiber. When it is a solid acetate fiber structure formed by a plurality of acetate fiber bundles arranged side by side, the gaps between the bundles of the solid acetate fiber structure form airflow pores. When the airflow passes through the airflow pores, due to the large surface area of ​​the solid acetate fiber structure, it can filter the airflow, thereby filtering the impurities carried by the airflow, and jointly controlling the suction resistance of the aerosol generating product 100 with the functional section 20, so that the aerosol generating product 100 meets the design requirements and improves the user experience.

[0135] For other implementations, see Fig. 9The nozzle section 40 is a third hollow structure 41, and the third hollow structure 41 has a third cavity 41a that runs through both ends of the third hollow structure 41 along the first direction. The third cavity 41a can extend the flow path of the aerosol and has the effect of reducing the temperature of the aerosol.

[0136] The third hollow structure 41 may be, for example, a hollow paper tube, a hollow acetate fiber structure, a corrugated paper tube, or the like.

[0137] Exemplarily, the medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40 are cylindrical and coaxially arranged, and the first direction is the axial direction of the medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40. By configuring the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 to be cylindrical and arranging them in sequence along the axial direction of the medium segment 10, the functional segment 20, the cooling segment 30 and the nozzle segment 40, the structure of the aerosol generating article 100 can be made more compact, thereby improving the user experience.

[0138] Eight specific embodiments are briefly introduced below with reference to the accompanying drawings.

[0139] First embodiment

[0140] See also Figure 2 In this embodiment, the number of the cooling sections 30 is two, one of which is a first cooling section 31, and the other is a second cooling section 32. The number of the functional section 20 is one.

[0141] The aerosol generating article 100 comprises a medium section 10, a first cooling section 31, a functional section 20, a second cooling section 32 and a mouthpiece section 40 which are sequentially arranged along a first direction. The medium section 10, the first cooling section 31, the functional section 20, the second cooling section 32 and the mouthpiece section 40 are separable structures, that is, the aerosol generating article 100 is a five-section combined structure which is sequentially combined by the medium section 10, the first cooling section 31, the functional section 20, the second cooling section 32 and the mouthpiece section 40.

[0142] The functional segment 20 is a tow structure, for example, a solid acetate fiber structure. The functional segment 20 of the solid acetate fiber structure may be a solid structure formed by arranging a plurality of acetate fiber tows side by side. The gaps between the tows of the solid acetate fiber structure form airflow pores, and the aerosol generated by the medium segment 10 can pass through the solid acetate fiber structure through the airflow pores, which has the effect of adjusting the suction resistance.

[0143] The first cooling section 31 is a first hollow structure having a first cavity 30a running through both ends of the first hollow structure along a first direction, which can be used to buffer aerosol and reduce the temperature of aerosol. The first hollow structure is, for example, a hollow paper tube.

[0144] The second cooling section 32 is a second hollow structure having a second cavity 30b penetrating both ends of the second hollow structure along the second direction, which can be used to buffer aerosol and reduce the temperature of aerosol. The second hollow structure is, for example, a hollow tube.

[0145] On a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the second cavity 30b is smaller than the cross-sectional area of ​​the first cavity 30a. That is, the wall thickness of the second hollow structure is greater than the wall thickness of the first hollow structure, and thus, the structural strength of the second hollow structure is greater than the structural strength of the first hollow structure. In other words, the second hollow structure can not only buffer the aerosol and reduce the temperature of the aerosol, but also strengthen the support for the aerosol generating article 100. In addition, since the cross-sectional area of ​​the second cavity 30b is smaller than the cross-sectional area of ​​the first cavity 30a, the airflow flows from a larger space to a smaller space, which can increase the flow rate of the aerosol, that is, it has the effect of quickly extracting the aerosol.

[0146] The mouthpiece section 40 is a filter section, which can be made of materials such as acetate fiber, PET (polyethylene terephthalate), polysaccharide, and acrylic fiber. When it is a solid acetate fiber structure formed by a number of acetate fiber bundles arranged side by side, the gaps between the bundles of the solid acetate fiber structure form airflow pores. When the airflow passes through the airflow pores, due to the large surface area of ​​the solid acetate fiber structure, it can filter the airflow, thereby filtering the impurities carried by the airflow, and jointly adjusting the suction resistance of the aerosol generating product 100 with the functional section 20, so that the aerosol generating product 100 meets the design requirements and improves the user experience.

[0147] At least one first air passage hole 10a is provided inside the medium segment 10, and the first air passage hole 10a penetrates at least one end of the medium segment 10 along the first direction.

[0148] Among them, the medium segment 10 is an integrated structure containing a macroscopic and / or microscopic porous structure prepared by processes such as extrusion, injection molding or die-casting. The suction resistance of the medium segment 10 mainly depends on its own porosity, that is, the pore size and number of the first airway holes 10a. The upper end adopts a four-section structural design consisting of a first cooling section 31, a functional section 20, a second cooling section 32 and a mouthpiece section 40. While ensuring effective cooling and extraction of smoke, the suction resistance adjustment function is taken into account, so that the suction resistance of the aerosol generating product 100 meets the design requirements.

[0149] Second embodiment

[0150] See also Figure 3 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the differences mainly include: in this embodiment, the functional section 20 is a hollow acetate fiber structure.

[0151] The functional segment 20 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber bundles side by side. The gaps between the bundles of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a fourth cavity 20c that runs through both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium segment 10 can pass through the hollow acetate fiber structure through the airflow pores and the fourth cavity 20c, which has the effect of adjusting the suction resistance.

[0152] In a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the fourth cavity 20c is smaller than the cross-sectional area of ​​the first cavity 30a. As a result, the airflow can produce a Venturi effect when it enters the fourth cavity 20c from the first cavity 30a, thereby improving the cooling effect on the aerosol. The Venturi effect is manifested in that when the restricted flow passes through a reduced flow cross section, the flow velocity of the fluid increases, and the flow velocity is inversely proportional to the flow cross section.

[0153] Third embodiment

[0154] See also Figure 4 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the differences mainly include: In this embodiment, the aerosol generating article 100 includes a medium section 10, a second cooling section 32, a functional section 20, a first cooling section 31 and a mouthpiece section 40 arranged in sequence along a first direction. The medium section 10, the second cooling section 32, the functional section 20, the first cooling section 31 and the mouthpiece section 40 are separable structures, that is, the aerosol generating article 100 is a five-section combined structure composed of the medium section 10, the second cooling section 32, the functional section 20, the first cooling section 31 and the mouthpiece section 40 in sequence.

[0155] Fourth embodiment

[0156] See also Figure 5 and Fig.10 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the first hollow structure also includes a barrier 30c, and the barrier 30c is arranged in the first cavity 30a and divides the first cavity 30a into a plurality of sub-cavities.

[0157] By setting the barrier 30c, on the one hand, the structural strength of the first hollow structure can be improved, thereby improving the supporting force of the first hollow structure and preventing the medium segment 10 from moving during the suction process. In addition, by setting the barrier 30c to divide the first cavity 30a into multiple sub-cavities, multiple sub-cavities can be used for heat exchange, thereby improving the cooling effect.

[0158] Specifically, the barrier 30c is in the shape of a rib, and there are multiple barrier members 30c. One ends of the multiple barrier members 30c are connected to each other, and the other ends are connected to the side wall of the first cavity 30a. The multiple barrier members 30c are radially distributed from the center of the first cavity 30a, and divide the first cavity 30a into multiple sub-cavities.

[0159] Fifth embodiment

[0160] See also Figure 6 and Fig.11 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, and the main differences include: in this embodiment, the functional section 20 is a folding structure or a pleated structure, and the folding structure or the pleated structure has an interlayer air channel 20b extending along the first direction. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating article 100, the flow path of the aerosol and the contact area with the functional section 20 can be lengthened, thereby having the effect of initially cooling the aerosol. In addition, the functional section 20 of the folding structure or the pleated structure also has a supporting and filtering function.

[0161] It should be noted that the specific material of the functional segment 20 of the foldable structure or the pleated structure is not limited here. For example, polylactic acid (PLA), paper, etc. can be selected and gathered to form a shape. By controlling the porosity, the suction resistance of the aerosol generating product 100 can be adjusted.

[0162] The functional section 20 of the foldable structure can be folded from acetate paper or the like. Acetate paper is formed by weaving acetate fibers. Acetate fibers, also known as cellulose acetate or cellulose acetate, are chemically modified polymer compounds obtained by esterifying the hydroxyl groups in cellulose molecules with acetate, including diacetate fibers and triacetate fibers, which have good acid and alkali resistance and organic solvent resistance.

[0163] The functional segment 20 of the pleated structure can be formed by gathering polylactic acid (PLA), paper material, etc. to form a curved wavy interlayer air channel 20b, or an interlayer air channel 20b with pleats on the surface of the air channel.

[0164] In addition, the functional section 20 can be supported by a phase change material, which absorbs heat by phase change to enhance the effect of lowering the aerosol temperature. The phase change material is, for example, polylactic acid (PLA), which can phase change, melt and absorb heat when a 120°C steam flow passes through.

[0165] Sixth embodiment

[0166] See also Figure 7In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the differences mainly include: in this embodiment, the aerosol generating article 100 includes a medium segment 10, a functional segment 20, a first cooling segment 31, a second cooling segment 32, and a mouthpiece segment 40 arranged in sequence along a first direction. The medium segment 10, the functional segment 20, the first cooling segment 31, the second cooling segment 32, and the mouthpiece segment 40 are separable structures, that is, the aerosol generating article 100 is a five-segment combination structure composed of the medium segment 10, the functional segment 20, the first cooling segment 31, the second cooling segment 32, and the mouthpiece segment 40 in sequence.

[0167] The functional segment 20 can be an integral structure formed by extrusion. The integral structure functional segment 20 manufactured by the extrusion molding process has the functions of adjusting the suction resistance, temperature resistance, and preventing thermal collapse. In addition, it can also be loaded with flavors according to the product style characteristics to increase the richness of the aerosol. Among them, extrusion molding can be, for example, a processing method in which a raw material mixture constituting the functional segment 20 is added to an extruder, and the material mixture is plasticized by heat through the action between the extruder barrel and the screw, and is pushed forward by the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0168] For example, in some embodiments, the composition of the functional segment 20 is the same as that of the medium segment 10. In this way, during use, the functional segment 20 will not bring bad smells and avoid affecting the taste of the aerosol. In addition, the composition of the functional segment 20 is the same as that of the medium segment 10, which is more conducive to the functional segment 20 and the medium segment 10 being manufactured by the same manufacturing process and raw materials, thereby improving production efficiency.

[0169] Of course, in other embodiments, the composition of the functional segment 20 is different from that of the medium segment 10. The functional segment 20 can be made of different materials such as plant materials, polysaccharides, silica gel, resin, etc.

[0170] The functional segment 20 has at least one second airway hole 20 a inside, and the second airway hole 20 a passes through at least one end of the functional segment 20 along the first direction.

[0171] The functional segment 20 adjusts the suction resistance by setting the second airway holes 20a and controlling the design parameters of the second airway holes 20a, for example, by controlling the number of the second airway holes 20a of the functional segment 20, the cross-sectional area (hydraulic diameter) of the second airway holes 20a, the cross-sectional area of ​​the functional segment 20 and other parameters.

[0172] When the functional section 20 is provided with a plurality of second airway holes 20a, the aerosol can exchange heat with the hole walls of the second airway holes 20a when flowing through the second airway holes 20a. The temperature of the aerosol can be effectively reduced by using multi-airway heat exchange.

[0173] Seventh embodiment

[0174] See also Figure 8 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: the number of the cooling section 30 is one, the number of the functional sections 20 is two, one of the functional sections 20 is the first functional section 2120, and the other functional section 20 is the second functional section 2220.

[0175] The cooling section 30 is located between the first functional section 2120 and the second functional section 2220. That is, the aerosol generating article 100 includes the medium section 10, the first functional section 2120, the cooling section 30, the second functional section 2220 and the mouthpiece section 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 includes the medium section 10, the first functional section 2120, the cooling section 30, the second functional section 2220 and the mouthpiece section 40 from the far lip end to the near lip end.

[0176] The cooling section 30 is a first hollow structure having a first cavity 30a that runs through both ends of the first hollow structure along a first direction, which can be used to buffer aerosol and reduce the temperature of aerosol. The first hollow structure is, for example, a hollow paper tube.

[0177] The first functional section 2120 may be an integral structure formed by extrusion.

[0178] The first functional section 2120 of the one-piece structure manufactured by the extrusion molding process has the function of adjusting the suction resistance, and also has the function of temperature resistance and preventing thermal collapse. In addition, it can also be loaded with fragrances according to the product style characteristics to increase the richness of the aerosol. Among them, extrusion molding can be, for example, a processing method in which the raw material mixture constituting the first functional section 2120 is added to an extruder, and the material mixture is plasticized by heat through the action between the extruder barrel and the screw, and is pushed forward by the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0179] The first functional segment 2120 has at least one second airway hole 20a inside, and the second airway hole 20a passes through at least one end of the functional segment 20 along the first direction.

[0180] The second functional section 2220 is a hollow acetate fiber structure.

[0181] The second functional segment 2220 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber bundles side by side. The gaps between the bundles of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a fourth cavity 20c that runs through both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium segment 10 can pass through the hollow acetate fiber structure through the airflow pores and the fourth cavity 20c, which has the effect of adjusting the suction resistance.

[0182] In a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the fourth cavity 20c is smaller than the cross-sectional area of ​​the first cavity 30a. As a result, the airflow can produce a Venturi effect when it enters the fourth cavity 20c from the first cavity 30a, thereby improving the cooling effect on the aerosol. The Venturi effect is manifested in that when the restricted flow passes through a reduced flow cross section, the flow velocity of the fluid increases, and the flow velocity is inversely proportional to the flow cross section.

[0183] Eighth embodiment

[0184] See also Fig. 9 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the seventh embodiment, and the differences mainly include:

[0185] The first functional segment 2120 and the second functional segment 2220 are located between the cooling segment 30 and the mouthpiece segment 40. That is, the aerosol generating article 100 includes the medium segment 10, the cooling segment 30, the first functional segment 2120, the second functional segment 2220 and the mouthpiece segment 40 arranged in sequence along the first direction. That is, the aerosol generating article 100 is the medium segment 10, the cooling segment 30, the first functional segment 2120, the second functional segment 2220 and the mouthpiece segment 40 from the far lip end to the near lip end.

[0186] The first functional section 2120 is a hollow acetate fiber structure.

[0187] The first functional section 2120 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber bundles side by side. The gaps between the bundles of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a fourth cavity 20c that runs through both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium section 10 can pass through the hollow acetate fiber structure through the airflow pores and the fourth cavity 20c, which has the effect of adjusting the suction resistance.

[0188] In a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the fourth cavity 20c is smaller than the cross-sectional area of ​​the first cavity 30a. As a result, the airflow can produce a Venturi effect when it enters the fourth cavity 20c from the first cavity 30a, thereby improving the cooling effect on the aerosol. The Venturi effect is manifested in that when the restricted flow passes through a reduced flow cross section, the flow velocity of the fluid increases, and the flow velocity is inversely proportional to the flow cross section.

[0189] The second functional segment 2220 is a tow-type structure, for example, a solid acetate fiber structure.

[0190] The gaps between the fiber bundles of the solid acetate structure form airflow pores. When the airflow passes through the airflow pores, the solid acetate structure has a large surface area and can filter the airflow, thereby filtering impurities carried by the airflow. It can also adjust the suction resistance of the aerosol generating product 100 together with the functional segment 20, so that the aerosol generating product 100 meets the design requirements and improves the user experience.

[0191] The nozzle section 40 is a third hollow structure 41, and the third hollow structure 41 has a third cavity 41a that runs through both ends of the third hollow structure 41 along the first direction. The provision of the third cavity 41a can extend the flow path of the aerosol and has the effect of reducing the temperature of the aerosol.

[0192] The third hollow structure 41 may be, for example, a hollow paper tube, a hollow acetate fiber structure, a corrugated paper tube, or the like.

[0193] 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.

[0194] 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 The aerosol generating article comprises a medium section, a functional section, a cooling section and a nozzle section arranged along a first direction; The suction resistance of the functional segment is different from the suction resistance of the medium segment, and the mouthpiece segment can be used to filter and / or cool the aerosol; The number of at least one of the functional section and the cooling section is two, and both the functional section and the cooling section are located between the medium section and the nozzle section; The medium segment is an integrated structure, and has at least one first airway hole inside the medium segment, and the first airway hole penetrates at least one end of the medium segment along the first direction.

2. The aerosol-generating article according to claim 1, wherein The number of the cooling sections is two, one of which is a first cooling section, and the other is a second cooling section.

3. The aerosol-generating article according to claim 2, wherein: The functional section is located between the first cooling section and the second cooling section; or, the first cooling section and the second cooling section are located between the functional section and the nozzle section.

4. The aerosol-generating article according to claim 3, wherein: One of the first cooling section and the second cooling section is a first hollow structure, and the other is a second hollow structure; the first hollow structure has a first cavity running through both ends of the first hollow structure along a first direction, and the second hollow structure has a second cavity running through both ends of the second hollow structure along the first direction, and on a plane perpendicular to the first direction of the aerosol generating product, a cross-sectional area of ​​the second cavity is smaller than a cross-sectional area of ​​the first cavity.

5. An aerosol generating article according to claim 4, characterized in that The first hollow structure further includes a barrier, which is disposed in the first cavity and divides the first cavity into a plurality of sub-cavities.

6. The aerosol-generating article of claim 1, wherein: The number of the functional segments is two, one of which is a first functional segment, and the other is a second functional segment.

7. An aerosol-generating article according to claim 6, characterized in that The temperature reduction section is located between the first functional section and the second functional section; or, the first functional section and the second functional section are located between the temperature reduction section and the nozzle section.

8. The aerosol-generating article of claim 1, wherein: The functional segment is a mesh structure, a folded structure, a pleated structure or a tow structure.

9. The aerosol-generating article of claim 1, wherein: The medium section, the functional section, the cooling section and the nozzle section are separable structures, and the functional section is an integrated structure.

10. An aerosol-generating article according to claim 9, characterized in that The functional segment has at least one second airway hole inside, and the second airway hole passes through at least one end of the functional segment along the first direction.

11. The aerosol-generating article of claim 1 , wherein: The nozzle rod segment is a filter segment, or the nozzle rod segment is a third hollow structure, and the third hollow structure has a third cavity that runs through both ends of the third hollow structure along the first direction.

12. The aerosol-generating article of claim 1, wherein: The medium segment, the functional segment, the cooling segment and the nozzle segment are cylindrical and coaxially arranged, and the first direction is the axial direction of the medium segment, the functional segment, the cooling segment and the nozzle segment.

13. An aerosol generating system, characterized in that: The aerosol generating system comprises an aerosol generating device and the aerosol generating article according to any one of claims 1 to 12, wherein the aerosol generating device comprises a heating element for heating the medium segment to generate an aerosol.

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