Functional segment, aerosol-generating article and aerosol-generating system

Abstract

This application discloses a functional segment, an aerosol generating article, and an aerosol generating system. The functional segment is at least capable of adsorbing or filtering aerosols. The functional segment has multiple suction resistance regions, each with a different suction resistance, and each suction resistance region extends from one end of the functional segment's axial direction to the other end. When applied to the aerosol generating article, the functional segment of this application can guide the flow of aerosols, thereby facilitating the adjustment of the suction resistance of the aerosol generating article, which helps improve the delivery efficiency of the aerosols and consequently enhances the user's suction experience.

Description

Technical Field

[0001] This application relates to the field of smoke-generating products technology, and in particular to a functional segment, an aerosol-generating product, and an aerosol-generating system. Background Technology

[0002] Smoking products include aerosol generating products that form aerosols by heating without combustion. In a typical heated but non-combustible aerosol generating product, it includes a matrix segment that can volatilize to generate an aerosol when heated. The matrix segment is heated by an external heat source to just the right temperature to release the desired components and aroma. The matrix segment does not burn but is loaded with an atomizing agent. During use, the atomizing agent is released by heating at high temperature to form an aerosol.

[0003] In related technologies, heated but non-combustible aerosol generators typically reach significantly lower temperatures than the combustion front temperatures of conventional ignition-based aerosol generators. This can affect nicotine release from the matrix segment and delivery of nicotine to the consumer. If the heating temperature is increased to attempt to enhance nicotine delivery, the generated aerosol usually needs to cool more extensively and rapidly before reaching the consumer. Based on this approach, a cooling and filtering section is typically required at the end of the aerosol generator near the lips. However, this can also have undesirable effects, potentially leading to a further decrease in nicotine delivery and even a simultaneous reduction in the amount of vapor produced by the aerosol generator. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide a functional segment, an aerosol generating article, and an aerosol generating system, which are designed to facilitate the adjustment of the suction resistance of the aerosol generating article in order to improve the delivery efficiency of the aerosol and thus enhance the user's suction experience.

[0005] To solve the above problems, the technical solution of this application embodiment is implemented as follows:

[0006] The first aspect of this application provides a functional segment applied to an aerosol generating article. The functional segment is at least capable of adsorbing or filtering aerosols. The functional segment has multiple adsorption resistance regions, each of which has a different adsorption resistance. Furthermore, each adsorption resistance region extends from one end of the functional segment's axial direction to the other end of the functional segment's axial direction.

[0007] In some embodiments, the filling materials of each of the suction regions are of different types, wherein the suction resistance of the different types of filling materials is different.

[0008] In some embodiments, the filling materials of each of the suction regions are of the same type but have different filling densities.

[0009] In some embodiments, the functional segment includes an adhesive for adjusting the filling density of the filler material in each of the suction resistance regions.

[0010] In some embodiments, the adhesive includes at least one of triacetin and triethylene glycol diacetate.

[0011] In some embodiments, the region with the lowest suction resistance is the region with the lowest suction resistance;

[0012] On the reference cross section of the functional segment, the cross-sectional area of ​​the region with the minimum suction resistance accounts for 3% to 50% of the area of ​​the reference cross section; wherein the reference cross section intersects the axial direction of the functional segment.

[0013] In some embodiments, on the reference cross section of the functional segment, the smallest area of ​​the suction region is the smallest area region, and the suction resistance of the smallest area region accounts for 2% to 40% of the total suction resistance of the functional segment; wherein, the reference cross section intersects the axial direction of the functional segment.

[0014] In some embodiments, the pull-in resistance of the functional segment is 10 Pa to 400 Pa.

[0015] In some embodiments, the suction resistance region includes a first suction resistance region and a second suction resistance region, the first suction resistance region being arranged to form a first receiving area, and in the circumferential direction of the functional segment, the first receiving area is a fully enclosed structure or a semi-enclosed structure; at least a portion of the second suction resistance region is disposed in the first receiving area.

[0016] In some embodiments, the first suction region and the second suction region are coaxially arranged.

[0017] In some embodiments, the suction resistance region further includes a third suction resistance region, and the first suction resistance region further surrounds a second receiving region. The second receiving region and the first receiving region are independent of each other. In the circumferential direction of the functional segment, the second receiving region is a fully enclosed structure or a semi-enclosed structure. At least a portion of the third suction resistance region is disposed in the second receiving region.

[0018] In some embodiments, the suction resistance region further includes a third suction resistance region, the second suction resistance region surrounds a sub-accommodating region, the sub-accommodating region constitutes a part of the first accommodating region, the third suction resistance region is disposed in the sub-accommodating region, and the first suction resistance region, the second suction resistance region and the third suction resistance region are coaxially arranged.

[0019] A second aspect of this application provides an aerosol generating article, the aerosol generating article comprising:

[0020] A matrix segment for generating aerosols, wherein the two ends of the matrix segment along the axis are a distal lip end and a proximal lip end, respectively;

[0021] The functional segment described in any of the above embodiments is provided at the proximal lip end and / or the distal lip end.

[0022] In some embodiments, the aerosol-generating article further includes a cooling section located near the lip end; wherein, when the functional section is located near the lip end, the functional section is located at the end of the cooling section away from the matrix section.

[0023] In some embodiments, the cooling section is configured to form a hollow region, and a through hole is provided on the peripheral sidewall of the cooling section, the through hole connecting the hollow region and the outside of the aerosol-generated product.

[0024] In some embodiments, the functional segment includes a first functional segment located at one end of the cooling segment away from the matrix segment, and the suction resistance region of the first functional segment includes a first suction resistance region and a second suction resistance region coaxially arranged, with the first suction resistance region surrounding the outer periphery of the second suction resistance region.

[0025] In some embodiments, the functional segment includes a fragrance carrier disposed in the second absorption region of the first functional segment, the fragrance carrier being used to release fragrance in a heated state.

[0026] In some embodiments, the functional segment further includes a second functional segment, which is located at the end of the first functional segment away from the cooling segment. The suction resistance region of the second functional segment includes a first suction resistance region, a second suction resistance region, and a third suction resistance region arranged coaxially. The second suction resistance region surrounds the outer periphery of the third suction resistance region, and the first suction resistance region surrounds the outer periphery of the second suction resistance region.

[0027] In some embodiments, the suction resistance of the first suction region of the first functional segment is greater than the suction resistance of the second suction region of the first functional segment; the suction resistance of the first suction region of the second functional segment, the suction resistance of the second suction region of the second functional segment, and the suction resistance of the third suction region of the second functional segment decrease sequentially.

[0028] In some embodiments, the functional segment includes a third functional segment disposed at the distal lip end of the matrix segment, and the suction resistance region of the third functional segment includes a first suction resistance region and a second suction resistance region coaxially disposed, with the first suction resistance region surrounding the outer periphery of the second suction resistance region.

[0029] In some embodiments, the total length of the functional segment located near the lip end is 5% to 50% of the total length of the aerosol-generating article; and / or,

[0030] The percentage of the total length of the functional segment at the distal lip end to the total length of the aerosol-generated article is 7% to 20%.

[0031] A third aspect of this application provides an aerosol generation system, comprising:

[0032] Aerosol generating apparatus, including heating components;

[0033] In any of the above embodiments, the aerosol-generating article is wherein the matrix segment generates aerosol under the heating action of the heating component.

[0034] In this embodiment, the functional segment has different draw resistances for each draw resistance region. By adjusting parameters such as the filling material and filling density of the region with lower draw resistance, the nicotine retention rate of the region with lower draw resistance can be reduced. Furthermore, by adjusting the area ratio of each draw resistance region on the cross-section of the functional segment, the total draw resistance of the functional segment can be adjusted. That is, the draw resistance adjustment means of aerosol generation products is expanded. This facilitates the adjustment of the draw resistance of aerosol generation products and also facilitates the improvement of aerosol delivery efficiency, thereby improving the user's inhalation experience.

[0035] Furthermore, since aerosols tend to flow faster towards areas with lower draw resistance, adjusting the position of each draw resistance area can guide the flow of aerosols, which is beneficial for aerosol concentration and thus improves the inhalation experience. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the cross-section of a functional segment in the first embodiment of this application;

[0037] Figure 2 This is a schematic diagram of the cross-section of a functional segment according to the second embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the cross-section of a functional segment according to the third embodiment of this application;

[0039] Figure 4 This is a schematic diagram of the cross-section of a functional segment according to the fourth embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the cross-section of a functional segment according to the fifth embodiment of this application;

[0041] Figure 6 This is a schematic diagram of the cross-section of a functional segment in the sixth embodiment of this application;

[0042] Figure 7This is a schematic diagram of the cross-section of a functional segment in the seventh embodiment of this application;

[0043] Figure 8 This is a schematic diagram of the cross-section of a functional segment in the eighth embodiment of this application;

[0044] Figure 9 This is a schematic diagram of the structure of the aerosol-generating article according to the first embodiment of this application;

[0045] Figure 10 This is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this application;

[0046] Figure 11 This is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this application;

[0047] Figure 12 This is a schematic diagram of the structure of the aerosol-generated article according to the fourth embodiment of this application;

[0048] Figure 13 This is a schematic diagram of the structure of the aerosol-generated article according to the fifth embodiment of this application.

[0049] Explanation of reference numerals in the attached figures

[0050] 10. Functional section; 11. Suction resistance area; 111. First suction resistance area; 112. Second suction resistance area; 113. Third suction resistance area; 12. Fragrance carrier; 20. Matrix section; 20a. Proximal lip end; 20b. Distal lip end; 30. Outer wrapping layer; 40. Pre-plug section; 50. Cooling section; 50a. Hollow area; 50b. Through hole; 60. Filter section; 70. First functional section; 80. Second functional section; 90. Third functional section. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0052] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0055] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0057] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0058] Please see Figures 1 to 8 The first aspect of the embodiments of this application provides a functional segment.

[0059] Please see Figures 9 to 13 The second aspect of this application provides an aerosol generating article, which includes a matrix segment 20 and a functional segment 10 according to any embodiment of this application.

[0060] It should be noted that after the aerosol generating article adopts the functional segment 10 of any embodiment of this application, the aerosol generating article has all the advantages of the functional segment 10 of that embodiment, and its specific advantages are described in detail below.

[0061] Aerosol-generated products are suitable for extraction by heating without combustion.

[0062] The matrix segment 20 is used to generate aerosols. Specifically, the aerosol generating article is used in conjunction with an aerosol generating device, which includes a heating component and a power supply component. The power supply component provides electrical energy to the heating component, which converts the electrical energy into other forms of energy and applies them to the matrix segment 20, thereby heating the matrix segment 20 to generate aerosols.

[0063] There are various heating methods for the heating components. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating component being inserted into the matrix segment 20 to bake and heat the matrix segment 20 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol-generated article to bake and heat the matrix segment 20 from the outside in. These heating methods can specifically include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, plasma heating, etc., and are not specifically limited herein.

[0064] Please see Figures 9 to 13 The matrix segment 20 has two axial ends, namely a proximal lip end 20a and a distal lip end 20b. The proximal lip end 20a refers to the end of the matrix segment 20 that is closer to the user's lips when the user uses the aerosol-generated product, and the distal lip end 20b refers to the end of the matrix segment 20 that is farther away from the user's lips when the user uses the aerosol-generated product.

[0065] It is understandable that the proximal end of an aerosol-generating product refers to the end of the aerosol-generating product that is close to the user's lips when the user is using the aerosol-generating product, while the distal end of the aerosol-generating product refers to the end of the aerosol-generating product that is far away from the user's lips when the user is using the aerosol-generating product.

[0066] The proximal end 20a and / or distal end 20b of the matrix segment 20 are provided with functional segments 10.

[0067] For example, please refer to Figures 9 to 11 The matrix segment 20 has a functional segment 10 only on its near-lip end 20a.

[0068] For example, please refer to Figure 12 The matrix segment 20 has a functional segment 10 only at its distal lip end 20b.

[0069] For example, please refer to Figure 13 The matrix segment 20 has functional segments 10 at both its proximal end 20a and distal end 20b.

[0070] In some embodiments, please refer to Figure 9 , Figure 10 and Figure 12The aerosol-generated product also includes a filtration section 60, which is used to screen the particle size of the aerosol, thereby improving the taste of the aerosol.

[0071] In other embodiments, please refer to Figure 11 and Figure 13 The filter section 60 can also be replaced by the functional section 10, that is, the function of the filter section 60 is replaced by the functional section 10, which has the function of filtering and thus can filter aerosols.

[0072] In some embodiments, please refer to Figures 9 to 13 The aerosol generating product also includes a cooling section 50, which is located near the lip end 20a; wherein, with the functional section 10 located near the lip end 20a, the functional section 10 is located at the end of the cooling section 50 away from the matrix section 20.

[0073] In some embodiments, the aerosol-generating article further includes a support section. The support section is disposed near the lip end 20a of the matrix section 20, and one end of the cooling section 50 is disposed at the end of the support section axially away from the matrix section 20.

[0074] The support section can connect and support the matrix section 20 and the cooling section 50 at both ends. The cooling section 50 is used to reduce the temperature of the aerosol so that the temperature of the aerosol flowing out from the filter section 60 or the functional section 10 is appropriate, thus avoiding the problem of the aerosol "scalding".

[0075] Of course, the positions of the support section and the cooling section 50 can also be interchanged, that is, the cooling section 50 is connected to one end of the matrix section 20 along the axis, and the two ends of the support section are respectively connected to the other end of the cooling section 50 and the filter section 60 or the functional section 10.

[0076] The structure of the support section is not limited. For example, it can be a hollow paper tube structure or a hollow aluminum foil tube structure. Hollow paper tube and hollow aluminum foil tube structures have good heat resistance, are not easily deformed by heat, and can maintain their shape after receiving heat conduction, which can increase the structural stability of aerosol-generated products. Alternatively, it can also be a hollow cellulose acetate structure or a hollow silicone structure.

[0077] The structure of the cooling section 50 is not limited. For example, it can be one of a hollow paper tube, a cellulose acetate tube, or an aluminum foil tube. That is, the cooling section 50 has a porous internal structure. When the airflow carrying aerosols passes through the cooling section 50, a Venturi effect is formed (the Venturi effect refers to the phenomenon that the fluid velocity increases when passing through a narrowed flow cross-section, and the velocity is inversely proportional to the flow cross-section). This allows the aerosols to pass through the cooling section 50 relatively quickly, thus enabling rapid aerosol extraction. The cooling section 50 has a large specific surface area, which allows for rapid cooling of the aerosols. Alternatively, the cooling section 50 can also be a corrugated paper tube, etc.

[0078] The support section and the cooling section 50 can also be an integrated structure, that is, the support section and the cooling section 50 are combined into one section, that is, the same structural component simultaneously realizes the functions of support and cooling. This type of support section and cooling section 50 is called the support and cooling section 50.

[0079] In some embodiments, please refer to Figures 9 to 13 Aerosol-generated products may include only the cooling section 50, excluding the support section.

[0080] In some embodiments, please refer to Figure 10 and Figure 11 The aerosol-generating article also includes a pre-plug section 40, which is located at the distal lip end 20b of the matrix section 20.

[0081] Generally, aerosol generating devices are equipped with a receiving chamber. The aerosol product is placed inside the receiving chamber for use, and the matrix segment 20 is heated inside the receiving chamber to generate aerosol. During the process of removing the aerosol product from the receiving chamber, the matrix segment 20 is prone to detaching and remaining inside the receiving chamber.

[0082] By setting a front plug section 40 at the distal lip end 20b of the matrix section 20, the force of pulling out the aerosol-generated product is transmitted to the front plug section 40, which can push the matrix section 20 away from the containment chamber. Thus, the problem of the matrix section 20 falling off can be effectively improved.

[0083] Furthermore, after suction stops, not all of the aerosol generated in the matrix section 20 may be used by the user. This portion of the aerosol may condense and flow back, causing contamination of the aerosol generating device. However, by providing a pre-stop section 40 at the distal lip 20b of the matrix section 20, the pre-stop section 40 can adsorb this condensed and flowing aerosol. This effectively prevents the aerosol from condensing and flowing downwards, remaining in the container of the aerosol generating device, causing contamination and making cleaning difficult. It also prevents cross-contamination of flavors when using aerosols from different brands.

[0084] In other embodiments, please refer to Figure 9 Aerosol-generated products may also be without the forepump section 40.

[0085] In some other embodiments, please refer to Figure 12 and Figure 13 The front plug section 40 can also be replaced by the functional section 10, that is, the function of the front plug section 40 is replaced by the functional section 10. The functional section 10 has an adsorption function, which can adsorb the condensed and returned aerosol, thus making it easier for the matrix section 20 to leave the containment chamber.

[0086] In some embodiments, please refer to Figures 9 to 13The aerosol-generating article also includes an outer coating layer 30, which covers at least a portion of the outer walls of each segmented structure. Here, each segmented structure can be, for example, at least one of the aforementioned matrix segment 20, functional segment 10, pre-plug segment 40, filter segment 60, support segment, and cooling segment 50. This improves the reliability of the connection between the segmented structures.

[0087] The outer wrapping layer 30 has a certain degree of hardness, which can play a certain protective role for the matrix section 20, reduce the surface area of ​​the matrix section 20 directly exposed to the outside world, thereby reducing the probability of the matrix section 20 becoming damp and deteriorating due to contact with air. At the same time, it helps to reduce the probability of the matrix section 20 coming into contact with other components of the aerosol generation device and causing pollution.

[0088] The specific material of the outer wrapping layer 30 is not limited, such as one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene (PE), polyethylene composite fiber paper, and PBAT (Poly(butylene adipate-co-terephthalate)).

[0089] When the outer wrapping layer 30 covers the entire circumferential outer surface of the filter section 60, the user can directly put the outer wrapping layer 30 in their mouth to inhale the aerosol. When the outer wrapping layer 30 covers part of the circumferential outer surface of the filter section 60, the user can directly put the part of the filter section 60 exposed outside the outer wrapping layer 30 in their mouth to inhale the aerosol. Of course, the user can also attach a mouthpiece to the filter section 60 and inhale the aerosol through the mouthpiece.

[0090] It should be noted that the outer wrapping layer 30 can be a single layer, that is, a single outer wrapping layer 30 can simultaneously wrap each segmented structure.

[0091] Of course, the outer wrapping layer 30 can also be multiple layers. Please refer to [link / reference]. Figures 9 to 13 Any segment of the segmented structure can be wrapped by at least one outer wrapping layer 30 to obtain multiple segments; or, at least two segments of the segmented structure can be wrapped by at least one outer wrapping layer 30 to obtain multiple segments, and the multiple segments can be wrapped by one or more outer wrapping layers 30 to obtain an aerosol-generated product.

[0092] Functional section 10 can at least be used to adsorb or filter aerosols. It is understood that when functional section 10 is used in place of filter section 60 in aerosol generating products, functional section 10 has at least the function of filtering aerosols; and when functional section 10 is used in place of pre-plug section 40 in aerosol generating products, functional section 10 has at least the function of adsorbing condensed and refluxed aerosols.

[0093] The functional segment 10 has multiple suction regions 11, each with different suction resistance, and each suction region 11 extends from one end of the functional segment 10 along the axial direction to the other end of the functional segment 10.

[0094] Please see Figures 1 to 8 That is to say, on any cross-section of the functional segment 10, each suction region 11 occupies a portion of that cross-section.

[0095] It should be noted that the cross section of functional segment 10 is the section perpendicular to its axis.

[0096] It should be noted that during the flow of aerosols through functional section 10, there is a tendency for the aerosols to accelerate their flow towards areas with lower suction resistance.

[0097] In related technologies, heated but non-combustible aerosol generators typically reach significantly lower temperatures than the combustion front temperatures of conventional ignition-based aerosol generators. This can affect nicotine release from the matrix segment and delivery of nicotine to the consumer. If the heating temperature is increased to attempt to enhance nicotine delivery, the generated aerosol usually needs to cool more extensively and rapidly before reaching the consumer. Based on this approach, a cooling and filtering section is typically required at the end of the aerosol generator near the lips. However, this can also have undesirable effects, potentially leading to a further decrease in nicotine delivery and even a simultaneous reduction in the amount of vapor produced by the aerosol generator.

[0098] In the functional segment 10 of this application embodiment, the suction resistance of each suction resistance region 11 is set to be different. By adjusting parameters such as the filling material and filling density of the region with lower suction resistance, the nicotine retention rate of the region with lower suction resistance 11 can be reduced. Furthermore, by adjusting the area ratio of each suction resistance region 11 on the cross-section of the functional segment 10, the total suction resistance of the functional segment 10 can be adjusted. That is, the means of adjusting the suction resistance of the aerosol-generated product are expanded. This facilitates the adjustment of the suction resistance of the aerosol-generated product and also facilitates the improvement of aerosol delivery efficiency, thereby improving the user's inhalation experience.

[0099] Furthermore, since aerosols tend to flow faster towards areas with lower suction resistance, adjusting the position of each suction resistance area 11 can guide the flow of aerosols, which is beneficial for aerosol concentration and thus improves the inhalation experience of aerosols.

[0100] It should be noted that there are no restrictions on adjusting the suction resistance of each suction resistance region 11 in different ways.

[0101] In some embodiments, the filling materials of each suction region 11 are of different types, wherein the suction resistance of the different types of filling materials is different.

[0102] The filling materials for the suction resistance region 11 with low suction resistance include, but are not limited to, cellulose acetate, polyethylene terephthalate, polylactic acid, corrugated paper, silicone parts, and integral extrusion structures with polysaccharide and other compounds as the skeleton.

[0103] The filling material for the suction resistance region 11 with high suction resistance includes, but is not limited to, cellulose acetate, polyethylene terephthalate, polylactic acid, silicone parts, etc.

[0104] For example, the filling material of the suction resistance region 11 with lower suction resistance can be corrugated paper, and the filling material of the suction resistance region 11 with higher suction resistance can be polyethylene terephthalate.

[0105] For example, the filling material of the absorption resistance region 11 with lower absorption resistance can be polyethylene terephthalate, and the filling material of the absorption resistance region 11 with higher absorption resistance can be cellulose acetate.

[0106] In this embodiment, by changing the filling material of each suction resistance region 11, the effect of different suction resistance of each suction resistance region 11 can be achieved. Thus, the operation is relatively simple and facilitates the molding of the functional segment 10.

[0107] In other embodiments, the filling materials of each suction region 11 are of the same type but have different filling densities.

[0108] It is understandable that, when using the same type of filler material, the higher the filler density, the greater the suction resistance.

[0109] In this embodiment, the functional segment 10 uses fewer types of filling materials, making it easier to obtain production materials, which in turn helps to improve the production efficiency of the functional segment 10.

[0110] In some embodiments, functional segment 10 includes an adhesive for adjusting the filling density of the filler material in each suction region 11.

[0111] The type of adhesive is not limited. For example, the adhesive includes at least one of triacetin and triethylene glycol diacetate.

[0112] The adhesive facilitates the aggregation of filler material, thereby making it easier to adjust the filling density of the filler material in each suction resistance region 11.

[0113] The shape of the cross-section of functional segment 10 is not restricted.

[0114] For example, please refer to Figures 1 to 3 , Figures 6 to 8 The cross-section of functional segment 10 is circular, that is, functional segment 10 is cylindrical.

[0115] For example, please refer to Figure 4 The cross-section of functional segment 10 is polygonal star-shaped, that is, functional segment 10 is a prism.

[0116] For example, please refer to Figure 5 The cross-section of functional segment 10 is elliptical, that is, functional segment 10 is an elliptical cylinder.

[0117] In some embodiments, the region 11 with the lowest suction resistance is the region with the lowest suction resistance; on the reference cross-section of the functional segment 10, the cross-sectional area of ​​the region with the lowest suction resistance accounts for 3% to 50% of the area of ​​the reference cross-section; wherein, the reference cross-section intersects the axial direction of the functional segment 10. For example, it can be 3%, 6%, 9%, 12%, 15%, 18%, 21%, 24%, 27%, 30%, 33%, 36%, 39%, 42%, 45%, 48%, 50%, etc.

[0118] It should be noted that the cross section mentioned above is a special type of reference cross section.

[0119] Here, on the reference cross section, the region of minimum suction resistance has a certain area, which is beneficial for guiding a sufficient amount of aerosol to flow through the region of minimum suction resistance.

[0120] It is understandable that when there are fewer suction regions 11 (e.g., two), the cross-sectional area of ​​the region with the smallest suction resistance is larger on the reference cross-section. However, as the number of suction regions 11 continues to increase, the cross-sectional area of ​​the region with smaller suction resistance will decrease.

[0121] Preferably, on the reference cross-section of functional segment 10, the cross-sectional area of ​​the region with the minimum resistance accounts for no more than 20% of the area of ​​the reference cross-section; wherein the reference cross-section intersects the axial direction of functional segment 10. For example, it can be 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, etc.

[0122] In some embodiments, on the reference cross-section of functional segment 10, the smallest suction region 11 is the smallest area region, and the suction resistance of the smallest area region accounts for 2% to 40% of the total suction resistance of functional segment 10; wherein, the reference cross-section intersects the axial direction of functional segment 10. For example, it is 2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, etc.

[0123] In this way, on the reference section, it is easy to make the suction resistance of each suction resistance region 11 have a certain difference, which is beneficial to guiding the flow direction of aerosol.

[0124] For example, please refer to Figures 1 to 5 When there are two suction regions 11 (i.e., the first suction region 111 and the second suction region 112) on the reference cross section, the suction resistance of one suction region 11 accounts for 2% to 40% of the total suction resistance of the functional section 10, while the suction resistance of the other suction region 11 accounts for 60% to 98% of the total suction resistance of the functional section 10. Therefore, there is a certain difference in the suction resistance of the first suction region 111 and the second suction region 112, which facilitates the guidance of aerosol flow.

[0125] Preferably, on the reference cross section of functional segment 10, the smallest suction region 11 is the smallest area region, and the suction resistance of the smallest area region accounts for no more than 25% of the total suction resistance of functional segment 10; wherein, the reference cross section intersects the axial direction of functional segment 10. For example, it is 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, etc.

[0126] In some embodiments, the pull-in resistance of functional segment 10 is 10 Pa to 400 Pa. For example, it is 10 Pa, 30 Pa, 50 Pa, 70 Pa, 90 Pa, 110 Pa, 130 Pa, 150 Pa, 170 Pa, 190 Pa, 210 Pa, 230 Pa, 250 Pa, 270 Pa, 290 Pa, 310 Pa, 330 Pa, 350 Pa, 370 Pa, 390 Pa, 400 Pa, etc.

[0127] In this embodiment, the suction resistance of functional segment 10 can be controlled within a suitable range, which helps to reduce the difficulty for users to aspirate aerosols and thus improves the user's aspiration experience.

[0128] In some embodiments, please refer to Figures 1 to 8 The suction resistance region 11 includes a first suction resistance region 111 and a second suction resistance region 112. The first suction resistance region 111 is arranged to form a first receiving area. In the circumferential direction of the functional segment 10, the first receiving area is a fully enclosed structure or a semi-enclosed structure. At least a portion of the second suction resistance region 112 is located in the first receiving area.

[0129] When the first accommodating area is a fully enclosed structure, the second suction region 112 is completely located within the first accommodating area.

[0130] When the first receiving area is a semi-enclosed structure, at least part of the outer wall of the second suction region 112 is not blocked by the first suction region 111.

[0131] In some embodiments, please refer to Figures 1 to 3The first suction region 111 and the second suction region 112 are coaxially arranged. Here, the first receiving area is a fully enclosed structure.

[0132] The magnitudes of the suction resistance of the first suction resistance region 111 and the suction resistance of the second suction resistance region 112 are not limited.

[0133] For example, the suction resistance of the first suction region 111 may be less than that of the second suction region 112. In the aerosol generating article based on the peripheral heating method, the components for generating aerosols in the matrix section 20 are mainly distributed on the outer periphery of the matrix section 20. Thus, when the functional section 10 is applied to the distal lip end 20b of the matrix section 20 of this type of aerosol generating article, it is convenient to guide the airflow from the outer periphery of the aerosol generating article along the axial direction of the aerosol generating article. In this way, the aerosol generated by the matrix section 20 can be delivered quickly, facilitating the release of the aerosol.

[0134] For example, the suction resistance of the first suction region 111 may be greater than that of the second suction region 112. In the aerosol generating article based on the central heating method, the components for generating aerosols in the matrix section 20 are mainly distributed in the central region of the matrix section 20. Thus, when the functional section 10 is applied to the distal lip end 20b of the matrix section 20 of this type of aerosol generating article, it is convenient to guide the airflow from the central region of the aerosol generating article along the axial direction of the aerosol generating article. In this way, the aerosol generated by the matrix section 20 can be delivered quickly, facilitating the release of the aerosol.

[0135] In summary, coaxial arrangement of the first suction resistance region 111 and the second suction resistance region 112 is beneficial for the application of the functional segment 10 to aerosol generating products that are heated peripherally or heated centrally.

[0136] Furthermore, based on the functional segment 10 applied to the lip end 20a of the matrix segment 20, the first suction resistance region 111 of the functional segment 10 has a greater suction resistance than the second suction resistance region 112, thereby allowing the aerosol to be enriched and flow out from the central region of the aerosol-generated product, which is beneficial to improving the aerosol's sucking experience.

[0137] In some embodiments, please refer to Figure 6 The suction region 11 also includes a third suction region 113. The first suction region 111 further encloses a second receiving area. The second receiving area and the first receiving area are independent of each other. In the circumferential direction of the functional segment 10, the second receiving area is a fully enclosed structure or a semi-enclosed structure. At least a portion of the third suction region 113 is located in the second receiving area.

[0138] When the second receiving area is a fully enclosed structure, the third suction area 113 is completely located within the second receiving area.

[0139] When the second receiving area is a semi-enclosed structure, at least part of the outer wall of the third suction region 113 is not blocked by the first suction region 111.

[0140] In this embodiment, the second suction region 112 and the third suction region 113 are independent of each other. That is, the first suction region 111, the second suction region 112, and the third suction region 113 are freely distributed on the reference cross section. This facilitates the filling of the filling material in each suction region 11 and helps to reduce the production difficulty of the functional section 10.

[0141] Furthermore, based on the aerosol generation device that can be heated at a fixed point, such as laser heating, the functional segment 10 of this embodiment can be provided with a suction resistance region 11 according to the position of the fixed-point heating, so as to facilitate the placement of the suction resistance region 11 with smaller suction resistance at the heating position, so as to quickly deliver the aerosol generated by the matrix segment 20 and facilitate the release of the aerosol.

[0142] In some embodiments, please refer to Figure 7 and Figure 8 The suction resistance region 11 also includes a third suction resistance region 113. The second suction resistance region 112 is arranged to form a sub-accommodating region, which constitutes part of the first accommodating region. The third suction resistance region 113 is located in the sub-accommodating region. The first suction resistance region 111, the second suction resistance region 112 and the third suction resistance region 113 are coaxially arranged.

[0143] In other words, on the reference cross section, the first suction region 111, the second suction region 112, and the third suction region 113 constitute a three-layer structure, and the suction resistance value of each of the three suction regions 11 is not limited in this application.

[0144] For example, when applied to a centrally heated aerosol-generating article, the suction resistance of the first suction resistance region 111, the second suction resistance region 112, and the third suction resistance region 113 decreases sequentially.

[0145] For example, when applied to a peripherally heated aerosol-generated article, the suction resistance of the first suction resistance region 111, the second suction resistance region 112, and the third suction resistance region 113 increases sequentially.

[0146] In some embodiments, please refer to Figures 9 to 13 The cooling section 50 is configured to form a hollow region 50a. A through hole 50b is provided on the peripheral wall of the cooling section 50, which connects the hollow region 50a and the outside of the aerosol-generated product.

[0147] In this way, external air can enter the hollow region 50a through the through-hole 50b, mix with the aerosol, and then enter the downstream functional section 10 or the filter section 60. The external air can be used to cool the aerosol and can also adjust the suction resistance of the aerosol-generated product, thus improving the user's suction experience.

[0148] In some embodiments, please refer to Figures 9 to 11 , Figure 13 Functional segment 10 includes a first functional segment 70, which is located at the end of cooling segment 50 away from matrix segment 20. The suction resistance region 11 of the first functional segment 70 includes a first suction resistance region 111 and a second suction resistance region 112 arranged coaxially, with the first suction resistance region 111 surrounding the outer periphery of the second suction resistance region 112.

[0149] In this way, the first functional segment 70 can be adapted to either a centrally heated aerosol generating product or a peripherally heated aerosol generating product, facilitating the rapid extraction of aerosols generated by the matrix segment 20.

[0150] In some embodiments, please refer to Figure 10 Functional segment 10 includes a fragrance carrier 12, which is located in the second suction region 112 of the first functional segment 70. The fragrance carrier 12 is used to release fragrance when heated.

[0151] The type of fragrance carrier 12 is not limited. For example, it can be fragrance carrier particles, fragrance carrier gel, fragrance carrier burst beads, etc.

[0152] For example, the fragrance carrier 12 is a fragrance burst bead, which contains a fragrance substance. The fragrance burst bead is released under the action of external force. By designing the structure of the fragrance burst bead, the fragrance substance can be released into the absorption resistance region 11 with lower absorption resistance, thereby effectively increasing the utilization rate of the fragrance substance.

[0153] The fragrance carrier 12 is located in the second suction resistance region 112. After the fragrance substance inside it is released, it will be covered by the filling material in the first suction resistance region 111 of the first functional section 70. This helps to improve the problem of fragrance substance leakage and contamination of the aerosol generating device.

[0154] In this embodiment, the first functional segment 70 can also enhance the aroma of the aerosol-generated product, thereby improving the user's inhalation experience.

[0155] In some embodiments, please refer to Figure 11 and Figure 13 Functional segment 10 also includes a second functional segment 80, which is located at the end of the first functional segment 70 away from the cooling segment 50. The suction resistance region 11 of the second functional segment 80 includes a first suction resistance region 111, a second suction resistance region 112 and a third suction resistance region 113 arranged coaxially. The second suction resistance region 112 surrounds the outer periphery of the third suction resistance region 113 and the first suction resistance region 111 surrounds the outer periphery of the second suction resistance region 112.

[0156] Here, by adjusting the length combination of the second functional segment 80 and the first functional segment 70, as well as the proportion of each filling material in the first functional segment 70 and the second functional segment 80, the absorption resistance of the aerosol-generated product can be effectively adjusted.

[0157] In some embodiments, please refer to Figure 11 and Figure 13 The suction resistance of the first suction region 111 of the first functional segment 70 is greater than that of the second suction region 112 of the first functional segment 70; the suction resistance of the first suction region 111, the second suction region 112, and the third suction region 113 of the second functional segment 80 decrease sequentially.

[0158] Here, as the aerosol flows through the first functional section 70 and the second functional section 80, the flow direction of the aerosol gradually concentrates towards the center of the aerosol-generated product, which is beneficial to improving the inhalation experience of the aerosol.

[0159] In some embodiments, please refer to Figure 12 and Figure 13 Functional segment 10 includes a third functional segment 90, which is located at the distal lip end 20b of matrix segment 20. The suction region 11 of the third functional segment 90 includes a first suction region 111 and a second suction region 112 arranged coaxially, with the first suction region 111 surrounding the outer periphery of the second suction region 112.

[0160] For example, please refer to Figure 12 The suction resistance of the first suction resistance region 111 is less than that of the second suction resistance region 112. As a result, the airflow preferentially enters from the periphery of the aerosol generating product, which is beneficial to the generation of aerosols in the periphery-heated aerosol generating product.

[0161] For example, please refer to Figure 13 The suction resistance of the first suction resistance region 111 is greater than that of the second suction resistance region 112. As a result, the airflow preferentially enters from the central region of the aerosol generating product, which is beneficial to the generation of aerosols in the centrally heated aerosol generating product.

[0162] In some embodiments, the total length of the functional segment 10 located near the lip end 20a is 5% to 50% of the total length of the aerosol-generated article. Exemplarily, it can be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, etc.

[0163] For example, please refer to Figure 11 and Figure 13 When functional segment 10 includes a first functional segment 70 and a second functional segment 80, the total length of the first functional segment 70 and the second functional segment 80 accounts for 5% to 50% of the total length of the aerosol-generated product.

[0164] In some embodiments, the total length of the functional segment 10 located at the distal lip end 20b is 7% to 20% of the total length of the aerosol-generated article. Exemplarily, it can be 7%, 9%, 11%, 13%, 15%, 17%, 19%, 20%, etc.

[0165] It is understood that the distal lip end 20b of the matrix segment 20 may also not be provided with the functional segment 10. In this embodiment, it is considered that the total length of the functional segment 10 provided at the distal lip end 20b is 0% of the total length of the aerosol-generated article.

[0166] In this embodiment, the total length of the functional segment 10 located at the distal lip end 20b is relatively reasonable, which facilitates controlling the suction resistance of the aerosol-generated product within a reasonable range.

[0167] The present application will be further described below with reference to eight embodiments.

[0168] Example 1:

[0169] Please see Figure 1 The functional segment 10 is strip-shaped with a circular cross-section. The suction-resistance region 11 includes a first suction-resistance region 111 and a second suction-resistance region 112 coaxially arranged. The first suction-resistance region 111 is annular, and the second suction-resistance region 112 is disk-shaped. The area ratio of the first suction-resistance region 111 to the second suction-resistance region 111 on the cross-section of the functional segment 10 is 25:24. The filling material of the first suction-resistance region 111 is cellulose acetate, and the filling material of the second suction-resistance region 112 is polyethylene terephthalate. The suction resistance of the first suction-resistance region 111 is greater than that of the second suction-resistance region 112, and the ratio of the suction resistance of the first suction-resistance region 111 to the total suction resistance of the functional segment 10 is 1:1.18.

[0170] Example 2:

[0171] Please see Figure 2 The functional segment 10 is strip-shaped with a circular cross-section. The suction-resistance region 11 includes a first suction-resistance region 111 and a second suction-resistance region 112 coaxially arranged. The first suction-resistance region 111 is annular, and the second suction-resistance region 112 is disk-shaped. The area ratio of the second suction-resistance region 112 to the first suction-resistance region 111 is 25:24. The filling material of the first suction-resistance region 111 is polyethylene terephthalate, and the filling material of the second suction-resistance region 112 is cellulose acetate. The suction resistance of the first suction-resistance region 111 is less than that of the second suction-resistance region 112, and the ratio of the suction resistance of the first suction-resistance region 111 to the total suction resistance of the functional segment 10 is 1:6.26.

[0172] Example 3:

[0173] Functional segment 10 is strip-shaped with an elliptical cross-section. The suction-resistance region 11 includes a first suction-resistance region 111 and a second suction-resistance region 112 coaxially arranged. The outer edge of the second suction-resistance region 112 is a regular hexagon. The area ratio of the first suction-resistance region 111 to the second suction-resistance region 112 is 10:3. The filling material of the first suction-resistance region 111 is cellulose acetate, and the filling material of the second suction-resistance region 112 is polyethylene terephthalate. The ratio of the suction resistance of the first suction-resistance region 111 to the total suction resistance of functional segment 10 is 1:1.08.

[0174] Example 4:

[0175] Functional segment 10 is strip-shaped with a circular cross-section. The suction-resistance region 11 includes a first suction-resistance region 111, a second suction-resistance region 112, and a third suction-resistance region 113 arranged coaxially. On the cross-section of functional segment 10, the area ratio of the first suction-resistance region 111 to the second suction-resistance region 112 to the third suction-resistance region 113 is 24:16:9. The filling material of the first suction-resistance region 111 is corrugated paper, the filling material of the second suction-resistance region 112 is polyethylene terephthalate, and the filling material of the third suction-resistance region 113 is cellulose acetate. The suction resistance of the first suction-resistance region 111, the second suction-resistance region 112, and the third suction-resistance region 113 gradually increases, with the suction resistance of the first suction-resistance region 111 accounting for 40% of the total suction resistance of functional segment 10.

[0176] Example 5:

[0177] Please see Figure 9 From the proximal end to the distal end of the aerosol generating product, the aerosol generating product sequentially includes a filtration section 60, a first functional section 70, a cooling section 50, and a matrix section 20.

[0178] The first functional segment 70 is the same as the functional segment 10 in Embodiment 1, and the cooling segment 50 has a through hole 50b. The longitudinal centers of each structure are aligned. The outer wrapping layer 30 includes a wrapping material one connecting the filter segment 60, the first functional segment 70 and part of the cooling segment 50, and a wrapping material two connecting the cleaning segment, the medium segment and part of the cooling segment 50.

[0179] The filter section 60 is made of polylactic acid, the cooling section 50 is made of corrugated paper tube, the matrix section 20 is an extruded one-piece cigarette structure, the first wrapping material is tipping paper, and the second wrapping material is cigarette paper.

[0180] The total length of the aerosol-generated product is 60mm, of which the length of the first functional segment 70 is 10mm.

[0181] Example 6:

[0182] Please see Figure 10From the proximal end to the distal end of the aerosol generating product, the aerosol generating product sequentially includes a filtration section 60, a first functional section 70, a cooling section 50, a matrix section 20, and a pre-plug section 40.

[0183] The first functional segment 70 is the same as the functional segment 10 in Example 1. The second suction region 112 of the first functional segment 70 contains flavor-enhancing capsules that improve aerosol flavor. The cooling segment 50 has through holes 50b. All structures are longitudinally aligned. The outer wrapping layer 30 includes a first wrapping material connecting the filter segment 60, the first functional segment 70, and part of the cooling segment 50, and a second wrapping material connecting the front plug segment 40, the matrix segment 20, and part of the cooling segment 50.

[0184] The filter section 60 is made of cellulose acetate, the cooling section 50 is made of corrugated paper tube, the matrix section 20 is made of tobacco sheet, the pre-stop section 40 is made of paper stick, the first wrapping material is cork paper, and the second wrapping material is cigarette paper.

[0185] The total length of the aerosol-generated product is 54 mm, of which the length of the first functional segment 70 is 10 mm.

[0186] Example 7:

[0187] Please see Figure 11 From the proximal end to the distal end of the aerosol-generating product, the aerosol-generating product sequentially includes a second functional section 80, a first functional section 70, a cooling section 50, a matrix section 20, and a pre-plug section 40.

[0188] In this design, the first functional segment 70 is functional segment 10 of Embodiment 2, the second functional segment 80 is functional segment 10 of Embodiment 4, and the cooling segment 50 is provided with a through hole 50b. The suction resistance of the second functional segment 80 is less than that of the first functional segment 70, and the suction resistance of the filling material in the third suction resistance region 113 of the second functional segment 80 is less than that of the filling material in the second suction resistance region 112 of the first functional segment 70. The outer wrapping layer 30 includes a wrapping material one connecting the second functional segment 80, the first functional segment 70, and part of the cooling segment 50, and a wrapping material two connecting the front plug segment 40, the matrix segment 20, and part of the cooling segment 50.

[0189] The cooling section 50 is made of paper tube, the matrix section 20 is an extruded one-piece cigarette structure, the front plug section 40 is made of silicone, the first wrapping material is tipping paper, and the second wrapping material is cigarette paper.

[0190] The total length of the aerosol-generated product is 82mm, of which the length of the first functional segment 70 is 8mm and the length of the second functional segment 80 is 10mm.

[0191] Example 8:

[0192] Please see Figure 13From the proximal end to the distal end of the aerosol-generating article, the aerosol-generating article sequentially includes a second functional section 80, a first functional section 70, a cooling section 50, a matrix section 20, and a third functional section 90.

[0193] In this embodiment, the first functional segment 70 is functional segment 10 of Example 2, the second functional segment 80 is functional segment 10 of Example 4, the third functional segment 90 is functional segment 10 of Example 2, and the cooling segment 50 is provided with a through hole 50b. The suction resistance of the second functional segment 80 is less than that of the first functional segment 70, and the suction resistance of the filling material in the third suction resistance region 113 of the second functional segment 80 is less than that of the filling material in the second suction resistance region 112 of the first functional segment 70. The outer wrapping layer 30 includes a wrapping material one connecting the second functional segment 80, the first functional segment 70, and part of the cooling segment 50, and a wrapping material two connecting the third functional segment 90, the matrix segment 20, and part of the cooling segment 50.

[0194] The cooling section 50 is made of corrugated paper tube, the matrix section 20 is an extruded one-piece cigarette structure, the first wrapping material is cork paper, and the second wrapping material is cigarette paper.

[0195] The total length of the aerosol-generated product is 82mm, of which the length of the first functional segment 70 is 8mm, the length of the second functional segment 80 is 10mm, and the length of the third functional segment 90 is 6mm.

[0196] A third aspect of this application provides an aerosol generation system, which includes an aerosol generation device and an aerosol generation article according to any embodiment of this application. The aerosol generation device includes a heating component, and the matrix section 20 generates aerosols under the action of the heating component.

[0197] It should be noted that after the aerosol generation system adopts the aerosol generation article of any embodiment of this application, the aerosol generation system has all the advantages of the aerosol generation article of that embodiment, which will not be repeated here.

[0198] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A functional segment applied to aerosol-generating products, characterized in that, The functional segment is at least capable of adsorbing or filtering aerosols, wherein the functional segment has multiple adsorption resistance regions, each adsorption resistance region having a different adsorption resistance, and each adsorption resistance region extends from one end of the functional segment's axial direction to the other end of the functional segment's axial direction.

2. The functional segment according to claim 1, characterized in that, The filling materials of each of the aforementioned suction regions are of different types, and the suction resistance of the different types of filling materials is different.

3. The functional segment according to claim 1, characterized in that, The filling materials in each of the aforementioned suction regions are of the same type but have different filling densities.

4. The functional segment according to claim 3, characterized in that, The functional segment includes an adhesive used to adjust the filling density of the filling material in each of the suction resistance regions.

5. The functional segment according to claim 4, characterized in that, The adhesive includes at least one of triacetin and triethylene glycol diacetate.

6. The functional segment according to claim 1, characterized in that, The region with the lowest suction resistance is the region of lowest suction resistance. On the reference cross section of the functional segment, the cross-sectional area of ​​the region with the minimum suction resistance accounts for 3% to 50% of the area of ​​the reference cross section; wherein the reference cross section intersects the axial direction of the functional segment.

7. The functional segment according to claim 1, characterized in that, On the reference cross section of the functional segment, the smallest area of ​​the suction resistance region is the smallest area region, and the suction resistance of the smallest area region accounts for 2% to 40% of the total suction resistance of the functional segment; wherein, the reference cross section intersects the axial direction of the functional segment.

8. The functional segment according to claim 1, characterized in that, The suction resistance of the functional section is 10 Pa to 400 Pa.

9. The functional segment according to any one of claims 1-8, characterized in that, The suction resistance area includes a first suction resistance area and a second suction resistance area. The first suction resistance area is arranged to form a first accommodating area. In the circumferential direction of the functional segment, the first accommodating area is a fully enclosed structure or a semi-enclosed structure. At least a portion of the second suction resistance area is disposed in the first accommodating area.

10. The functional segment according to claim 9, characterized in that, The first suction resistance region and the second suction resistance region are arranged coaxially.

11. The functional segment according to claim 9, characterized in that, The suction resistance area also includes a third suction resistance area, and the first suction resistance area further surrounds and forms a second accommodating area. The second accommodating area and the first accommodating area are independent of each other. In the circumferential direction of the functional segment, the second accommodating area is a fully enclosed structure or a semi-enclosed structure. At least part of the third suction resistance area is located in the second accommodating area.

12. The functional segment according to claim 9, characterized in that, The suction resistance region further includes a third suction resistance region. The second suction resistance region is arranged to form a sub-accommodating region. The sub-accommodating region constitutes a part of the first accommodating region. The third suction resistance region is located in the sub-accommodating region. The first suction resistance region, the second suction resistance region, and the third suction resistance region are coaxially arranged.

13. An aerosol-generating product, characterized in that, The aerosol-generating product includes: A matrix segment for generating aerosols, wherein the two ends of the matrix segment along the axis are a distal lip end and a proximal lip end, respectively; The functional segment according to any one of claims 1-12, wherein the proximal lip end and / or the distal lip end are provided with the functional segment.

14. The aerosol-generating article according to claim 13, characterized in that, The aerosol-generating product further includes a cooling section, which is located near the lip end; wherein, when the functional section is located near the lip end, the functional section is located at the end of the cooling section away from the matrix section.

15. The aerosol-generating article according to claim 14, characterized in that, The cooling section forms a hollow area, and a through hole is provided on the peripheral sidewall of the cooling section, which connects the hollow area and the outside of the aerosol-generated product.

16. The aerosol-generating article according to claim 14, characterized in that, The functional segment includes a first functional segment, which is located at the end of the cooling segment away from the matrix segment. The suction resistance region of the first functional segment includes a first suction resistance region and a second suction resistance region arranged coaxially, with the first suction resistance region surrounding the outer periphery of the second suction resistance region.

17. The aerosol-generating article according to claim 16, characterized in that, The functional segment includes a fragrance carrier, which is disposed in the second absorption region of the first functional segment, and the fragrance carrier is used to release fragrance when heated.

18. The aerosol-generating article according to claim 16, characterized in that, The functional segment further includes a second functional segment, which is located at the end of the first functional segment away from the cooling segment. The suction resistance area of ​​the second functional segment includes a first suction resistance area, a second suction resistance area, and a third suction resistance area arranged coaxially. The second suction resistance area surrounds the outer periphery of the third suction resistance area, and the first suction resistance area surrounds the outer periphery of the second suction resistance area.

19. The aerosol-generating article according to claim 18, characterized in that, The suction resistance of the first suction region of the first functional segment is greater than that of the second suction region of the first functional segment; the suction resistance of the first suction region of the second functional segment, the second suction region of the second functional segment, and the third suction region of the second functional segment decrease sequentially.

20. The aerosol-generating article according to claim 13, characterized in that, The functional segment includes a third functional segment, which is located at the distal lip end of the matrix segment. The suction resistance region of the third functional segment includes a first suction resistance region and a second suction resistance region arranged coaxially, with the first suction resistance region surrounding the outer periphery of the second suction resistance region.

21. The aerosol-generating article according to claim 13, characterized in that, The percentage of the total length of the functional segment near the lip end to the total length of the aerosol-generating article is set to 5% to 50%; and / or, The percentage of the total length of the functional segment at the distal lip end to the total length of the aerosol-generated article is 7% to 20%.

22. An aerosol generation system, characterized in that, include: Aerosol generating apparatus, including heating components; The aerosol generating article according to any one of claims 13-21, wherein the matrix segment generates aerosol under the heating action of the heating component.

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