An aerosol-generating article and aerosol-generating system

Abstract

Embodiments of the present application provide an aerosol-generating article and an aerosol-generating system. The aerosol-generating article comprises, arranged in sequence along a first direction, a filter segment, a temperature-lowering segment, a support segment, a substrate segment, and a front plug segment. The substrate segment is configured to be heated by a heating element to generate an aerosol. The support segment and the front plug segment are respectively an integral forming structure, and the substrate segment comprises dispersed atomization medium. By respectively setting the support segment and the front plug segment as an integral forming structure, the integral forming structure has good stability, so that the airflow is not prone to collapse when flowing through the support segment and the front plug segment, which is conducive to improving the consistency of the resistance of the aerosol-generating article, improving the smoking experience of the user, and at the same time, the manufacturing efficiency of the aerosol-generating article can also be improved.

Description

Technical Field

[0001] This application relates to the field of atomized aerosol technology, and in particular to an aerosol generating product and an aerosol generating system. Background Technology

[0002] Aerosol generating products generally produce aerosols through heating without combustion. Specifically, aerosol generating products use an external heat source to heat the aerosol generating matrix in the product to produce aerosols. The aerosol generating matrix does not burn, but instead loads an atomizing agent. When used, the atomizing agent is released by heating to form smoke.

[0003] In related technologies, the stability of the front plug section and support section structure is poor, and they are prone to collapse during the user's suction process, which affects the consistency of the suction resistance of the aerosol generated products and reduces the user's suction experience. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol generating product and an aerosol generating system to ensure the consistency of the suction resistance of the aerosol generating product, so as to improve the user's suction experience.

[0005] One embodiment of this application provides an aerosol generating article, comprising: a filter section, a cooling section, a support section, a matrix section, and a front plug section arranged sequentially along a first direction, wherein the matrix section is used to be heated by a heating element to generate an aerosol;

[0006] The support section and the front plug section are integrally formed structures, and the matrix section includes a dispersed atomizing medium.

[0007] In some embodiments, the aerosol generating article further includes a coating layer covering the periphery of the fore-plug section, the matrix section, the support section, the cooling section, and the filter section.

[0008] In some embodiments, the matrix segment includes a coating layer that encapsulates the dispersed atomizing medium.

[0009] In some implementations, the filtration section is a one-piece molded structure; and / or, the cooling section is a one-piece molded structure.

[0010] In some implementations, the forepump section is provided with one or more first channels;

[0011] The one or more first channels include at least one straight channel that penetrates at least one end face of the foreplast section in the first direction; and / or, the one or more first channels include at least one spiral channel that extends spirally on the outer peripheral surface of the foreplast section or inside the foreplast section.

[0012] In some implementations, the forepump section is provided with one or more first channels;

[0013] On a plane perpendicular to the first direction, the ratio of the sum of the flow areas of all the first channels provided in the front plug section to the cross-sectional area of ​​the front plug section is 10% to 80%.

[0014] In some embodiments, the support segment is provided with one or more first airflow channels that pass through both ends of the support segment along the first direction;

[0015] The one or more first airflow channels include at least one straight channel; and / or, the one or more first airflow channels include at least one spiral channel, the spiral channel extending spirally on the outer peripheral surface of the support section or inside the support section.

[0016] In some implementations, the support segment is provided with one or more first airflow channels, the one or more first airflow channels passing through both ends of the support segment along the first direction;

[0017] On a plane perpendicular to the first direction, the ratio of the sum of the flow areas of all the first airflow channels provided in the support section to the cross-sectional area of ​​the support section is 5% to 85%.

[0018] In some embodiments, the aerosol generating article further includes a coating layer covering the periphery of the fore plug section, the matrix section, the support section, the cooling section, and the filter section;

[0019] The cooling section is provided with a second airflow channel and a side airflow channel. The second airflow channel passes through both ends of the cooling section along the first direction. The wrapping layer is provided with a first through hole. The side airflow channel connects the first through hole and the second airflow channel. The side airflow channel is used to guide the airflow from the first through hole to the second airflow channel.

[0020] In some implementations, the fore plug section, the matrix section, the support section, the cooling section, and the filter section are cylinders with the same outer diameter and coaxially arranged.

[0021] In some embodiments, the aerosol-generated article has a dimension of 35 mm to 90 mm along the first direction.

[0022] In some embodiments, the aerosol-generating article is cylindrical, and the ratio of the dimension of the aerosol-generating article along the first direction to the diameter of the aerosol-generating article is 5 to 23.

[0023] In some embodiments, the suction resistance of the aerosol-generating article ranges from 10 mmWG to 40 mmWG.

[0024] In some embodiments, the ratio of the dimension of the foreplug section along the first direction to the dimension of the aerosol-generating article along the first direction is 4% to 50%.

[0025] And / or, the ratio of the size of the matrix segment along the first direction to the size of the aerosol-generated article along the first direction is 8% to 80%;

[0026] And / or, the ratio of the dimension of the support segment along the first direction to the dimension of the aerosol-generated article along the first direction is 6% to 80%;

[0027] And / or, the ratio of the dimension of the cooling section along the first direction to the dimension of the aerosol-generated article along the first direction is 8% to 40%;

[0028] And / or, the ratio of the dimension of the filter section along the first direction to the dimension of the aerosol-generating article along the first direction is 4% to 50%.

[0029] This application provides an aerosol generation system according to a second embodiment, comprising:

[0030] An aerosol generating device having a receiving cavity;

[0031] and the aerosol-generating article as described in any of the above embodiments; at least a portion of the aerosol-generating article is housed in the receiving cavity.

[0032] The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

[0033] The aerosol generating product and aerosol generating system of this application embodiment are made into an integrally molded structure by setting the support section and the front plug section into an integrally molded structure. The integrally molded structure has better stability and is not easy to collapse, which helps to improve the consistency of the suction resistance of the aerosol generating product, improve the user's suction experience, and at the same time, can also improve the manufacturing efficiency of the aerosol generating product. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of an aerosol-generating article provided in the first embodiment of this application;

[0035] Figure 2 A schematic diagram of the structure of an aerosol-generating article provided for the second embodiment of this application;

[0036] Figure 3 A schematic diagram of the structure of an aerosol-generating article provided for the third embodiment of this application;

[0037] Figure 4 for Figure 1 A schematic diagram of the front plug section in the middle;

[0038] Figure 5 for Figure 2 A schematic diagram of the front plug section in the middle;

[0039] Figure 6 for Figure 3 A schematic diagram of the front plug section in the middle;

[0040] Figure 7 for Figure 6 Another perspective illustration;

[0041] Figure 8 for Figure 1 A schematic diagram of the supporting section in the middle;

[0042] Figure 9 for Figure 2 A schematic diagram of the front plug section in the middle;

[0043] Figure 10 for Figure 3 A schematic diagram of the supporting section in the middle;

[0044] Figure 11 for Figure 10 Internal structure diagram;

[0045] Figure 12 This is a schematic diagram of an aerosol generation system provided in an embodiment of this application.

[0046] Explanation of reference numerals in the attached figures

[0047] 1. Aerosol generating product; 11. Front plug section; 11a. First channel; 12. Matrix section; 12a. Coating layer; 12b. Atomizing medium; 13. Support section; 13a. First airflow channel; 14. Cooling section; 14a. Second airflow channel; 15. Filter section; 16. Coating layer; 2. Aerosol generating device; 2a. Receiving cavity; 20. Outer shell; 21. Heating element; 22. Battery. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0050] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0051] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0052] This application provides an aerosol-generating article 1, please refer to... Figure 1 , Figure 4 and Figure 7 The aerosol-generating product 1 includes a filter section 15, a cooling section 14, a support section 13, a matrix section 12, and a front plug section 11 arranged sequentially along a first direction.

[0053] It should be noted that the first direction refers to Figure 1 The direction indicated by the middle arrow.

[0054] The matrix segment 12 is used to be heated by the heating element 21 to generate an aerosol. For example, the matrix segment 12 releases an aerosol when heated.

[0055] The aerosol generated by the matrix section 12 flows through the support section 13, the cooling section 14 and the filtration section 15 in sequence before entering the user's mouth. The multi-segment structure can extend the flow path of the aerosol and gradually reduce the temperature of the aerosol, which can reduce the problem of "burning the mouth" for the user during the inhalation process.

[0056] The support section 13 provides support and improves the structural strength of the aerosol-generated product 1.

[0057] The support section 13 and the front plug section 11 are located at both ends of the matrix section 12 along the first direction. The front plug section 11 can seal the matrix section 12, effectively reducing the possibility of the matrix section 12 shrinking and deforming and falling off after heating. In addition, the front plug section 11 can also adsorb aerosols that flow back during the process when the user is not performing suction, reducing the possibility of backflowing aerosols overflowing from the aerosol-generated product 1. Furthermore, the front plug section 11 can also absorb the condensate formed in the matrix section 12, reducing the possibility of condensate flowing out of the aerosol-generated product 1.

[0058] The support section 13 and the front plug section 11 are both integrally formed structures. That is, the support section 13 is an integrally formed structure, and the front plug section 11 is an integrally formed structure. The support section 13 and the front plug section 11 are separate structures, and the support section 13 and the front plug section 11 are manufactured and formed independently.

[0059] Understandably, the one-piece molded structure has better stability and is less prone to collapse, which can improve the suction resistance consistency of the aerosol-generated product 1, thereby improving the user's suction experience.

[0060] It should be noted that there are no restrictions on the specific processing method for one-piece molding, such as extrusion molding, die molding, roll forming, freeze molding, spray drying molding, gel molding, injection molding, die casting, and one-piece molding of composite materials.

[0061] The matrix segment 12 includes a dispersed atomizing medium 12b. It is understood that the dispersed atomizing medium 12b facilitates uniform heating, which can improve the aerosol generation capacity of the matrix segment 12, enabling the matrix segment 12 to stably supply aerosols and improve the user's inhalation experience.

[0062] It should be noted that the dispersed atomizing medium 12b refers to numerous scattered atomizing media 12b aggregated together by constraints from other structures. The dispersed atomizing medium 12b itself cannot maintain a predetermined shape and structural strength, and requires the assistance of other structures (such as the coating layer 12a mentioned below) to maintain its predetermined shape. For example, the atomizing medium 12b can be one or a combination of multiple of the following: filamentous structure, sheet-like structure, granular structure, powdered structure, or porous solid structure.

[0063] The aerosol generating product 1 provided in this application embodiment has a good stability. The support section 13 and the front plug section 11 are respectively set as an integral molding structure. The integral molding structure is not easy to collapse. This is conducive to improving the consistency of the suction resistance of the aerosol generating product 1, improving the user's suction experience, and also improving the manufacturing efficiency of the aerosol generating product 1.

[0064] Please refer to Figure 12One embodiment of this application provides an aerosol generation system, which includes an aerosol generation device 2 and an aerosol generation article 1 according to any embodiment.

[0065] The aerosol generating apparatus 2 has a receiving cavity 2a, in which at least a portion of the aerosol generating article 1 is contained. It is understood that the receiving cavity 2a provides space for the aerosol generating article 1, which may be entirely contained within the receiving cavity 2a, or partially contained within the receiving cavity 2a while the other part is located outside the receiving cavity 2a.

[0066] The aerosol generating device 2 provided in this application embodiment allows external gas to enter the receiving cavity 2a. The gas can enter the aerosol generating product 1 through the gap between the receiving cavity 2a and the aerosol generating product 1 via the front plug section 11, which can improve the suction resistance when the user inhales and improve the user's inhalation experience.

[0067] For example, the aerosol generating device 2 includes a housing 20, which can form the appearance of the aerosol generating device 2 and can also form a receiving cavity 2a. In addition, the housing 20 can also protect the internal components of the aerosol generating device 2.

[0068] The aerosol generating device 2 includes a heating element 21, which heats the matrix segment 12 housed in the receiving cavity 2a to generate an aerosol. It is understood that the heat generated by the heating element 21 can heat and atomize the matrix segment 12, thereby generating an aerosol that can be inhaled by a user or used in medicine, beauty, etc.

[0069] The heating element 21 can be heated in various ways. For example, the heating methods include center heating and peripheral heating. Center heating refers to the heating element 21 being inserted into the aerosol-generating product 1 to bake and heat the aerosol-generating product 1 from the inside out. Peripheral heating refers to the heating element 21 being positioned around the aerosol-generating product 1 to bake and heat the aerosol-generating product 1 from the outside in. These heating methods can specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc.

[0070] It should be noted that, in this embodiment, the first direction does not specifically refer to the direction in which the aerosol generating article 1 has the longest external outline. Specifically, the arrangement direction of the filter section 15, cooling section 14, support section 13, matrix section 12, and front plug section 11 is consistent with the first direction; the direction in which the aerosol generating article 1 is inserted into the device and the direction in which the aerosol generating article 1 is removed from the device are both parallel to the first direction. The length of the aerosol generating article 1 along the first direction can be longer, shorter, or the same as its length in other directions.

[0071] For example, when the aerosol generating article 1 has a cylindrical outline, the first direction is the axial direction of the aerosol generating article 1. It should be noted that even when the axial length of the aerosol generating article 1 is less than its diameter, the first direction of the aerosol generating article 1 is still the axial direction. As another example, when the aerosol generating article 1 has a cuboid outline, the first direction is still the direction defined above, that is, the arrangement direction of the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11, or the direction in which the aerosol generating article 1 is placed or removed from the receiving cavity. The first direction of the aerosol generating article 1 can be any of the length, width, or height of the cuboid.

[0072] For example, the aerosol generating device 2 also includes a battery 22, which provides power to the aerosol generating device 2.

[0073] It should be noted that the specific structure of the matrix segment 12 is not limited here. Exemplarily, in one embodiment, the matrix segment 12 may be made of the atomizing medium 12b itself, for example, of a smoky flavoring medium. In other embodiments, the matrix segment 12 may also include a matrix and an atomizing medium 12b disposed on the matrix. The matrix may be, for example, high-temperature resistant carbon fiber. Thus, by providing a matrix, the strength of the matrix segment 12 can be improved, and it can withstand a certain degree of high temperature without producing odor.

[0074] The specific composition of the matrix segment 12 is not limited here. For example, in one embodiment, the matrix segment 12 may include plant components, smoke-generating agent components, etc.

[0075] The function of the smoke-generating agent is to produce a large amount of vapor upon heating, thereby increasing the amount of smoke in the smoke-generating product. In one embodiment, the smoke-generating agent may include, for example, one or more combinations of: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, meso-erythritol, a mixture of diacetins, diethyl caprylate, triethyl citrate, methyl benzoate, phenylacetic acid methyl ester, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0076] For example, the weight of the smoke-generating agent component in the matrix segment 12 accounts for no less than 10% of the total weight of the matrix segment 12. This ensures that the aerosol generated by the matrix segment 12 has a reasonable amount of smoke.

[0077] Furthermore, the shape of the matrix segment 12 is not limited; for example, please refer to... Figure 1 The matrix segment 12 can be columnar, and the cross-sectional shape of the columnar matrix segment 12 can be circular or other shapes, such as polygons (including but not limited to triangles, squares, rhombuses, etc.), ellipses, racetracks, or irregular shapes, etc. Among them, irregular shapes refer to other symmetrical or asymmetrical shapes other than the shapes listed above.

[0078] In some embodiments, the draw resistance (RTD, which refers to the resistance encountered by air when it passes through the aerosol generating article 1 during smoking) of the aerosol generating article 1 ranges from 10 mmWG to 40 mmWG (mmWG is a unit of static pressure, representing millimeters of water column), that is, 10 mmWG ≤ RTD ≤ 40 mmWG. For example, RTD can be 10 mmWG, 11 mmWG, 12 mmWG, 13 mmWG, 14 mmWG, 15 mmWG, 16 mmWG, 17 mmWG, 18 mmWG, 19 mmWG, 20 mmWG, 25 mmWG, 30 mmWG, 35 mmWG, or 40 mmWG, etc.

[0079] Understandably, the aerosol generating product 1 should have a reasonable suction resistance so that external airflow can pass smoothly through it, reducing the difficulty of suction for users and improving the suction experience of the aerosol generating product 1.

[0080] For example, please refer to Figure 1 The aerosol generating article 1 also includes a coating layer 16, which covers the outer periphery of the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11. It is understood that the coating layer 16 serves to connect the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11, thereby improving the overall stability of the aerosol generating article 1.

[0081] The material of the wrapping layer 16 is not limited. For example, the wrapping layer 16 includes, but is not limited to, one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butylene adipate-co-terephthalate).

[0082] It should be noted that the specific size of the aerosol-generated product 1 is not limited.

[0083] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7The dimension (hereinafter referred to as H) of the aerosol generating article 1 along the first direction is 35mm to 90mm (mm, a unit of length, representing millimeters), that is, 35mm≤H≤90mm. For example, H can be 35mm, 40mm, 45mm, 48mm, 54mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, or 90mm, etc. It is understandable that a reasonable length for the aerosol generating article 1 ensures that the user can smoothly inhale the aerosol while providing sufficient path for cooling, thus improving the user's inhalation experience.

[0084] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7 The aerosol generating article 1 is cylindrical. The ratio of the dimension H of the aerosol generating article 1 along the first direction to the diameter (D) of the aerosol generating article 1 is 5 to 23, that is, 5 ≤ H / D ≤ 23. For example, H / D is 5, 6.67, 7.5, 8.82, 10, 15, 20, or 23, etc. This makes the aerosol generating article 1 reasonably sized, ensuring that it is not easily broken while not having a large volume, thus facilitating its carrying and transportation.

[0085] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7 The ratio of the dimension of the front plug section 11 along the first direction (hereinafter referred to as H1) to the dimension H of the aerosol generating article 1 along the first direction is 4% to 50%, that is, 4% ≤ H1 / H ≤ 50%. For example, H1 / H is 4%, 8%, 10%, 11%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%, etc.

[0086] This ensures that the length of the front plug section 11 is reasonable and the structural strength of the front plug section 11 is appropriate, which can ensure that the aerosols that flow back during non-suction processes can be adsorbed by the front plug section 11 as much as possible, reducing the possibility of condensate accumulation in the containment cavity 2a of the aerosol generating device 2 caused by the backflow of aerosols, and maintaining the cleanliness of the containment cavity 2a of the aerosol generating device 2.

[0087] In some embodiments, please refer to Figure 2 , Figure 5 , Figure 7 , Figure 8 and Figure 9 The front plug section 11 is provided with one or more first channels 11a. The first channels 11a help to reduce the material used in the front plug section 11, improve the air permeability of the front plug section 11, and facilitate the user's suction.

[0088] Exemplarily, all first channels 11a include at least one straight channel that penetrates at least one end face of the front plug section 11 in the first direction. For example, in some embodiments, the straight channel penetrates one end face of the front plug section 11 in the first direction, and the other end of the straight channel is a closed section, thus blocking material scattered from the matrix section; in other embodiments, the straight channel penetrates the end faces of opposite ends of the front plug section 11 in the first direction, thus facilitating manufacturing. And / or, all first channels 11a include at least one helical channel that extends helically on the outer peripheral surface of the front plug section 11 or inside the front plug section 11. The helical channel may penetrate at least one end face of the front plug section 11 in the first direction, or the helical channel may not penetrate any end face of the front plug section 11 in the first direction.

[0089] The above technical solutions include the following: the first type, such as... Figure 2 As shown, all first channels 11a are straight channels; the second type, all first channels 11a are spiral channels; the third type, as shown... Figure 5 As shown, when there are multiple first channels 11a, some first channels 11a are straight channels, and other first channels 11a are spiral channels.

[0090] A straight passage refers to a passage that extends along a straight line. A straight passage can be parallel to the first direction or it can be set at an angle to the first direction.

[0091] A straight passageway facilitates processing and manufacturing.

[0092] The spiral channel of the front plug section 11 can extend the airflow path, effectively filter large molecules in the airflow, and improve the user's suction comfort. In addition, with the spiral channel penetrating the two end faces of the front plug section 11 at opposite ends in the first direction, the spiral channel can improve the air permeability of the front plug section 11, effectively absorb backflowing aerosols, and intercept impurities entering the spiral channel.

[0093] For example, in an embodiment where there are multiple first channels 11a, and some are straight channels and others are spiral channels, please refer to... Figure 5 The straight channel is located inside the front plug section 11, while the spiral channel is located on the outer wall of the front plug section 11. Thus, by utilizing the difference in air permeability between the straight and spiral channels, users can experience a layered sensation of the aerosol during inhalation, enhancing their inhalation experience.

[0094] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7On a plane perpendicular to the first direction, the ratio of the sum of the flow areas of all the first channels 11a provided in the front plug section 11 (hereinafter referred to as S1) to the cross-sectional area of ​​the front plug section 11 (hereinafter referred to as S2) is 10% to 80%, that is, 10% ≤ S1 / S2 ≤ 80%. For example, S1 / S2 can be 10%, 12%, 14%, 16%, 20%, 25%, 28%, 30%, 35%, 40%, 50%, 51%, 54%, 60%, 70%, 76%, or 80%, etc. In this way, the first channels 11a have a reasonable flow area, which improves the air permeability of the front plug section 11 while ensuring the structural strength of the front plug section 11, improving the aerosol extraction efficiency, and thus improving the user's suction experience.

[0095] It should be noted that the cross-sectional area of ​​the front plug section 11 refers to the area enclosed by the outer contour of the cross-section of the front plug section 11.

[0096] It should be noted that the flow area of ​​the first channel 11a mentioned above refers to the area enclosed by the outer contour at the maximum cross-section of the first channel 11a.

[0097] For example, please refer to Figure 1 , Figure 4 and Figure 7 The ratio of the dimension of the matrix segment 12 along the first direction (hereinafter referred to as H2) to the dimension H of the aerosol-generated article 1 along the first direction is 8% to 80%, that is, 8% ≤ H2 / H ≤ 80%. For example, H2 / H is 8%, 10%, 12%, 14%, 16%, 20%, 25%, 28%, 30%, 35%, 40%, 50%, 60%, 70%, or 80%, etc.

[0098] This design ensures that the matrix segment 12 has a reasonable length, providing the aerosol-generating product 1 with sufficient matrix segment 12 to produce adequate aerosols. It also allows for ample space within the matrix segment 12 to accommodate aroma expression substances, enhancing the user's experience during inhalation. Furthermore, it ensures that the matrix segment 12 has a reasonable draw resistance, facilitating aerosol extraction during inhalation.

[0099] In some embodiments, please refer to Figure 1 The matrix segment 12 includes a coating layer 12a, which encapsulates the dispersed atomizing medium 12b. It is understood that the coating layer 12a can constrain the dispersed atomizing medium 12b, improve the integrity of the matrix segment 12, and reduce the phenomenon of the internal atomizing medium 12b loosening and falling off.

[0100] For example, please refer to Figure 1 , Figure 4 and Figure 7The ratio of the dimension of the support section 13 along the first direction (hereinafter referred to as H3) to the dimension H of the aerosol-generating article 1 along the first direction is 6% to 80%, that is, 6% ≤ H3 / H ≤ 80%. For example, H3 / H is 6%, 10%, 12%, 13%, 14%, 16%, 20%, 22%, 23%, 25%, 28%, 30%, 35%, 40%, 50%, 60%, 70%, or 80%, etc.

[0101] This makes the length of the support section 13 reasonable. When the aerosol extracted from the matrix section 12 flows through the support section 13, it can not only accumulate at the support section 13, but also avoid the phenomenon of aerosol stagnation. This prevents the aerosol from being condensed and trapped in advance, thereby improving the aerosol transmission efficiency of the support section 13.

[0102] For example, the support segment 13 includes a functional component. This provides sufficient space in the support segment 13 to hold the functional component, which facilitates its continuous and slow release during inhalation, thus improving the user's inhalation experience. It should be noted that the functional component can be an aroma substance.

[0103] In some embodiments, please refer to Figure 3 , Figure 6 and Figure 10 The support section 13 is provided with one or more first airflow channels 13a, which penetrate both ends of the support section 13 along the first direction. It can be understood that the first airflow channels 13a penetrating the end faces of the opposite ends of the support section 13 along the first direction helps to improve the air permeability of the support section 13 and improve the user's suction experience.

[0104] One or more first airflow channels 13a include at least one straight channel; and / or, one or more first airflow channels 13a include at least one spiral channel, the spiral channel extending spirally on the outer peripheral surface of the support section 13 or inside the support section 13.

[0105] The above technical solutions include the following: the first type, such as... Figure 3 and Figure 6 As shown, all first airflow channels 13a are straight channels; secondly, all first airflow channels 13a are spiral channels; thirdly, as shown... Figure 10 As shown, when there are multiple first airflow channels 13a, some of the first airflow channels 13a are straight channels, and the other part of the first airflow channels 13a are spiral channels.

[0106] Understandably, the spiral channel of the support section 13 can extend the airflow path, effectively filter large molecules in the airflow, improve user comfort during inhalation, and enhance the air permeability of the support section 13 while also improving its cooling capacity for aerosols. In embodiments where the support section 13 includes functional components, it also facilitates full contact between the airflow and the functional components, allowing the functional components to enter the airflow and enabling the user to feel the functional components during inhalation, thus improving the user's inhalation experience.

[0107] The straight channel of the support section 13 can reduce the amount of manufacturing material used in the support section 13, and the structure is simple and easy to manufacture. It can also improve the air permeability of the front plug section 11, making it easier for users to perform suction.

[0108] For example, in an embodiment where the support section 13 includes a plurality of first airflow channels 13a, and a portion is a straight channel and the other portion is a spiral channel, please refer to Figure 10 The center of the straight channel coincides with the centerline of the support section 13 along the first direction, and the spiral channel is located on the outer periphery of the straight channel. In this way, by utilizing the difference in air permeability between the spiral channel and the straight channel, the user can feel the layering of the aerosol during the suction process, thus improving the user's suction experience.

[0109] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7 On a plane perpendicular to the first direction, the ratio of the sum of the flow areas of all the first airflow channels 13a provided on the support section 13 (hereinafter referred to as S3) to the cross-sectional area of ​​the support section 13 (hereinafter referred to as S4) is 5% to 85%, that is, 5% ≤ S3 / S4 ≤ 85%. For example, S3 / S4 is 5%, 9%, 10%, 12%, 14%, 16%, 20%, 25%, 28%, 30%, 35%, 40%, 50%, 51%, 54%, 60%, 70%, 74%, 80%, 84%, or 85%, etc.

[0110] This design ensures that the first airflow channel 13a has a reasonable flow area, improving the permeability of the support section 13 while maintaining its structural strength. Furthermore, it allows the aerosol generated by the matrix section 12 to flow through the support section 13 at a reasonable flow rate, reducing the possibility of aerosol accumulation in the support section 13 and preventing excessive flow. This facilitates a stable supply of aerosol from the matrix section 12 to the user's suction, improving suction consistency.

[0111] It should be noted that the cross-sectional area of ​​the support segment 13 refers to the area enclosed by the outer contour of the cross-section of the support segment 13.

[0112] It should be noted that the flow area of ​​the first airflow channel 13a mentioned above refers to the area enclosed by the outer contour at the maximum cross-section of the first airflow channel 13a.

[0113] For example, please refer to Figure 1 , Figure 4 and Figure 7 The ratio of the dimension of the cooling section 14 along the first direction (hereinafter referred to as H4) to the dimension H of the aerosol-generating product 1 along the first direction is 8% to 40%, that is, 8% ≤ H4 / H ≤ 40%. For example, H4 / H is 8%, 10%, 11%, 15%, 20%, 25%, 26%, 30%, 35%, or 40%, etc.

[0114] This makes the length of the cooling section 14 reasonable, ensuring that the cooling section 14 can effectively cool the aerosol while reducing the probability that the aerosol will be condensed and trapped in the cooling section 14 in advance, improving the transmission efficiency of the cooling section 14 for the aerosol, and improving the user's suction experience.

[0115] For example, the cooling section 14 is a one-piece molded structure. It is understood that a one-piece molded structure offers better stability, ensuring the structural strength of the cooling section 14 and its ability to cool the aerosol, thereby improving the user's suction experience. Furthermore, it facilitates the manufacturing of the cooling section 14 on a factory production line, improving the manufacturing efficiency of the aerosol-generated product 1.

[0116] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7 The cooling section 14 is provided with a second airflow channel 14a and a side airflow channel (not shown in the figure). The second airflow channel 14a passes through both ends of the cooling section 14 in the first direction. The wrapping layer 16 is provided with a first through hole, and the side airflow channel connects the first through hole and the second airflow channel 14a. The side airflow channel is used to guide the airflow from the first through hole to the second airflow channel 14a. It can be understood that the external airflow entering through the first through hole can flow into the second airflow channel 14a through the side airflow channel. The external airflow can cool the aerosol in the second airflow channel 14a, improve the cooling capacity of the cooling section 14, and reduce the problem of "burning the mouth" for the user during suction.

[0117] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7On a plane perpendicular to the first direction, the ratio of the flow area of ​​the second airflow channel 14a (hereinafter referred to as S5) to the cross-sectional area of ​​the cooling section 14 (hereinafter referred to as S6) is 50% to 95%, that is, 50% ≤ S5 / S6 ≤ 95%. For example, S5 / S6 can be 50%, 60%, 65%, 70%, 75%, 80%, 85%, 89%, 91%, or 95%, etc.

[0118] This design ensures that the second airflow channel 14a has a reasonable flow area, improving the permeability of the cooling section 14 while maintaining its structural strength. Furthermore, it ensures a reasonable flow rate of aerosol through the cooling section 14. On one hand, the flow rate is not too low, reducing the possibility of premature condensation; on the other hand, the flow rate is not too high, facilitating effective cooling of the aerosol and reducing the risk of burns during suction.

[0119] It should be noted that the cross-sectional area of ​​the cooling section 14 refers to the area enclosed by the outer contour of the cross-section of the cooling section 14.

[0120] It should be noted that the flow area of ​​the second airflow channel 14a mentioned above refers to the area enclosed by the outer contour at the maximum cross-section of the second airflow channel 14a. For example, there are multiple side airflow channels, which are arranged at circumferential intervals along the cooling section 14. This increases the flow rate of air through the side airflow channels to the second airflow channel 14a, not only improving the cooling efficiency of the airflow on the aerosol within the second airflow channel 14a, but also making the aerosol entering the user's mouth more uniform, thereby improving the user's suction experience.

[0121] For example, on the outer peripheral surface of the cooling section 14, the sum of the flow areas of multiple side airflow channels (hereinafter referred to as S) c ) and the outer peripheral surface area of ​​cooling section 14 (hereinafter referred to as S) w The ratio is 0.1% to 0.5%, that is, 0.1% ≤ S c / S w ≤0.5%. For example, S c / S w The percentages are 0.1%, 0.2%, 0.3%, 0.4%, or 0.5%, etc.

[0122] This ensures that all side airflow channels have a reasonable flow area, resulting in a reasonable flow rate of external airflow into the cooling section 14. On the one hand, the flow rate of external airflow into the cooling section 14 is not too low, which is beneficial for the cooling section 14 to cool the aerosol and reduce the problem of "burning the mouth" for users during the suction process. On the other hand, the flow rate of external airflow into the cooling section 14 is not too high, which can reduce the possibility of premature condensation of aerosol in the cooling section 14.

[0123] It should be noted that the outer circumferential surface area of ​​the cooling section 14 refers to the area of ​​the cooling section 14 unfolded circumferentially.

[0124] For example, please refer to Figure 1 , Figure 4 and Figure 7 The ratio of the dimension of the filter section 15 along the first direction (hereinafter referred to as H5) to the dimension H of the aerosol generating article 1 along the first direction is 4% to 50%, that is, 4% ≤ H5 / H ≤ 50%. For example, H5 / H is 4%, 8%, 10%, 11%, 13%, 15%, 16%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%, etc.

[0125] This makes the length of the filter section 15 reasonable, ensuring that the filter section 15 can effectively screen large molecules in the aerosol while maintaining the permeability of the aerosol, reducing the possibility of the aerosol being trapped in the filter section 15, improving the transmission efficiency of the filter section 15 for the aerosol, and improving the user's suction experience.

[0126] In some embodiments, the filter section 15 is a one-piece molded structure. It is understood that a one-piece molded structure has better stability, which can ensure the structural strength of the filter section 15 and its filtration capacity for aerosols, thereby improving the user's suction experience and increasing the manufacturing efficiency of the aerosol-generating product 1.

[0127] In some embodiments, the filter section 15 is provided with one or more third airflow channels (not shown in the figure), which pass through both ends of the filter section 15 along the first direction. It is understood that having the third airflow channels pass through the end faces of the opposite ends of the filter section 15 along the first direction helps to reduce the suction resistance of the filter section 15 and improve the user's suction experience.

[0128] On a plane perpendicular to the first direction, the ratio of the sum of the flow areas of one or more third airflow channels (hereinafter referred to as S7) to the cross-sectional area of ​​the filter section 15 (hereinafter referred to as S8) is 50% to 95%, that is, 50% ≤ S7 / S8 ≤ 95%. For example, S7 / S8 is 50%, 60%, 65%, 70%, 75%, 80%, 85%, 89%, 91%, 93%, or 95%, etc.

[0129] This design ensures a reasonable flow area for the third airflow channel, improving the permeability of the filter section 15 while maintaining its structural strength. Furthermore, it guarantees that the filter section 15 can effectively filter large molecular impurities in the aerosol, enhancing the user's suction experience.

[0130] It should be noted that the cross-sectional area of ​​filter section 15 refers to the area enclosed by the outer contour of the cross-section of filter section 15.

[0131] It should be noted that the flow area of ​​the third airflow channel mentioned above refers to the area enclosed by the outer contour at the maximum cross-section of the third airflow channel.

[0132] In some embodiments, please refer to Figure 1 , Figure 4 and Figure 7 The front plug section 11, matrix section 12, support section 13, cooling section 14, and filter section 15 are all cylinders with the same outer diameter and coaxially arranged. This improves the uniformity of the contour of the aerosol-generating article 1 along the first direction, which on the one hand improves the cleanliness of the appearance of the aerosol-generating article 1, and on the other hand, facilitates the coating layer 16 to better cover the front plug section 11, matrix section 12, support section 13, cooling section 14, and filter section 15, reducing the manufacturing difficulty of the aerosol-generating article 1.

[0133] It should be noted that, in this embodiment, the first direction is the axial direction of the front plug section 11, the matrix section 12, the support section 13, the cooling section 14, and the filter section 15. The front plug section 11, the matrix section 12, the support section 13, the cooling section 14, and the filter section 15 are all cylindrical, and their axial directions coincide.

[0134] It should be noted that the front plug section 11, matrix section 12, support section 13, cooling section 14 and filter section 15 all need to be supplied with airflow. For example, during the suction process, the external airflow passes through the front plug section 11 and enters the matrix section 12. After the airflow extracts the aerosol generated by the matrix section 12, it flows out of the filter section 15 through the support section 13 and the cooling section 14.

[0135] It should be noted that the aforementioned pre-plug section 11, matrix section 12, support section 13, cooling section 14, and filter section 15 are all provided with micropores. The micropores are interconnected to form micro-air channels.

[0136] The first channel 11a, the first airflow channel 13a, the second airflow channel 14a, and the third airflow channel mentioned above are all pores in a macroscopic sense, while micropores are pores in a microscopic sense. The shape and size of micropores are determined by the manufacturing process, rather than being pores processed using tools or molds. The cross-sectional area of ​​the first channel 11a, the first airflow channel 13a, the second airflow channel 14a, or the third airflow channel is much larger than the cross-sectional area of ​​the micropore. For example, the diameter of the first channel 11a is at least 20 times that of the micropore.

[0137] In some embodiments, the filter section 15 may only have micropores and no third airflow channel. The front plug section 11 may only have micropores and no first channel 11a.

[0138] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0139] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An aerosol-generating article, characterised in that, Comprise: The filter section, the cooling section, the support section, the substrate section and the front plug section are arranged in sequence along the first direction, and the substrate section is used for being heated by a heating element to generate an aerosol; The support section and the front plug section are respectively an integral structure, and the substrate section comprises dispersed atomization medium.

2. An aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises a wrapping layer, and the wrapping layer is wrapped around the outer periphery of the front plug section, the substrate section, the support section, the cooling section and the filter section.

3. An aerosol-generating article according to claim 1, wherein, The substrate section comprises a wrapping layer, and the wrapping layer wraps the dispersed atomization medium.

4. An aerosol-generating article according to claim 1, wherein, The filter section is an integral structure; and / or, the cooling section is an integral structure.

5. The aerosol-generating article according to claim 1, wherein, The front plug section is provided with one or more first channels; The one or more first channels comprise at least one straight-through channel, and the straight-through channel penetrates at least one end face of the front plug section in the first direction; and / or, the one or more first channels comprise at least one spiral channel, and the spiral channel spirally extends on the outer peripheral surface of the front plug section or in the interior of the front plug section.

6. An aerosol-generating article according to claim 1, wherein, The front plug section is provided with one or more first channels; In a plane perpendicular to the first direction, the ratio of the sum of flow areas of all the first channels provided in the front plug section to the cross-sectional area of the front plug section is 10% to 80%.

7. An aerosol-generating article according to claim 1, wherein, The support section is provided with one or more first airflow channels, and the one or more first airflow channels penetrate both ends of the support section along the first direction; The one or more first airflow channels comprise at least one straight-through channel; And / or, the one or more first airflow channels comprise at least one spiral channel, and the spiral channel spirally extends on the outer peripheral surface of the support section or in the interior of the support section.

8. The aerosol-generating article according to claim 1, wherein, The support section is provided with one or more first airflow channels, and the one or more first airflow channels penetrate both ends of the support section along the first direction; In a plane perpendicular to the first direction, the ratio of the sum of flow areas of all the first airflow channels provided in the support section to the cross-sectional area of the support section is 5% to 85%.

9. The aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises a wrapping layer, and the wrapping layer is wrapped around the outer periphery of the front plug section, the substrate section, the support section, the cooling section and the filter section. The cooling section is provided with a second airflow channel and a side airflow channel, the second airflow channel penetrates both ends of the cooling section along the first direction; the wrapping layer is provided with a first through hole, and the side airflow channel communicates the first through hole and the second airflow channel, and the side airflow channel is used for guiding the airflow of the first through hole to the second airflow channel.

10. An aerosol-generating article according to claim 1, wherein, The front plug section, the substrate section, the support section, the cooling section and the filter section are cylindrical bodies with consistent outer diameters and coaxial arrangement.

11. An aerosol-generating article according to claim 1, wherein, The aerosol generating article has a size of 35mm to 90mm along the first direction.

12. An aerosol-generating article according to claim 1, wherein, The aerosol generating article is a cylindrical body, and the ratio of the size of the aerosol generating article along the first direction to the diameter of the aerosol generating article is 5 to 23.

13. An aerosol-generating article according to claim 1, wherein, The resistance of the aerosol generating article ranges from 10mmWG to 40mmWG.

14. An aerosol-generating article according to claim 1, wherein, a ratio of a dimension of the front plug segment in the first direction to a dimension of the aerosol generating article in the first direction is 4% to 50%; and / or, a ratio of a dimension of the substrate segment in the first direction to a dimension of the aerosol generating article in the first direction is 8% to 80%; and / or, a ratio of a dimension of the support segment in the first direction to a dimension of the aerosol generating article in the first direction is 6% to 80%; and / or, a ratio of a dimension of the temperature reduction segment in the first direction to a dimension of the aerosol generating article in the first direction is 8% to 40%; and / or, a ratio of a dimension of the filter segment in the first direction to a dimension of the aerosol generating article in the first direction is 4% to 50%.

15. An aerosol-generating system comprising: comprising: an aerosol-generating device having a receiving cavity; and an aerosol-generating article according to any one of claims 1 to 14; at least a portion of the aerosol-generating article is received in the receiving cavity, wherein the aerosol-generating device comprises a heating element for heating the substrate segment received in the receiving cavity to generate an aerosol.

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