An aerosol-generating article and aerosol-generating system

Abstract

This application provides an aerosol generation article and an aerosol generation system. The aerosol generation article includes a filter section, a functional section, a matrix section, and a pre-plug section arranged along a first direction. The matrix section is used to generate aerosols. The matrix section includes dispersed first matrix structures, each of which is an integral structure. By making the first matrix structures in the matrix section integral, on the one hand, the first matrix structure has better stability and is less prone to collapse, giving the matrix section a sustained-release effect; on the other hand, the first matrix structure has higher density and occupies a smaller volume, which helps to shorten the size of the matrix section, facilitates heat radiation into the interior of the matrix section, improves the heating uniformity of the matrix section, and enhances the user's suction experience. Furthermore, it can also improve the manufacturing efficiency of the aerosol generation article.

Description

Technical Field

[0001] This application relates to the field of 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 matrix section is filled with natural tobacco. Due to the loose structure of natural tobacco, it is prone to collapse during the user's inhalation, which affects the consistency of the aerosol generation product's draw resistance and reduces the user's inhalation experience. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol generating article and an aerosol generating system to improve the structural stability of the matrix segment, so as to ensure the consistency of the absorption resistance of the aerosol generating article.

[0005] One embodiment of this application provides an aerosol generating article, comprising: a filter section, a functional section, a matrix section, and a pre-plug section arranged along a first direction, wherein the matrix section is used to generate aerosols;

[0006] The matrix segment includes dispersed first matrix structures, wherein each of the first matrix structures is an integral structure.

[0007] In some embodiments, the first matrix structure is granular, strip-shaped, or sheet-like.

[0008] In some implementations, the first matrix structure is an extruded monolithic structure.

[0009] In some embodiments, the matrix segment includes a dispersed second matrix structure, wherein the true density of the first matrix structure is greater than the true density of the second matrix structure.

[0010] In some implementations, the second matrix structure is granular, strip-shaped, or sheet-like.

[0011] In some embodiments, the true density of the first matrix structure is 1.0 g / cm³. 3 ~1.50g / cm 3 .

[0012] In some embodiments, the filling density of the matrix segment does not exceed 0.7 g / cm3.

[0013] In some implementations, the first matrix structure is arranged in an ordered manner, or the first matrix structure is filled in a disordered manner.

[0014] In some implementations, the functional segment includes a cooling segment and / or a support segment.

[0015] In some embodiments, the dimensions of the aerosol-generated article along the first direction are 40 mm to 90 mm;

[0016] And / or, the aerosol-generated article is cylindrical, and the diameter of the aerosol-generated article is 5mm to 7mm;

[0017] And / or, the aerosol generating article is cylindrical, and the ratio of the diameter of the aerosol generating article to the dimension of the aerosol generating article along the first direction is 5.0 to 23.0;

[0018] And / or, the suction resistance of the aerosol-generated article is 15 mmWG to 50 mmWG.

[0019] In some implementations, the front plug section is provided with one or more first airflow channels, the first airflow channels passing through the end faces of both ends of the front plug section along the first direction;

[0020] 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 front plug section to the cross-sectional area of ​​the front plug section is 10% to 80%.

[0021] In some embodiments, the aerosol generating article further includes a coating layer covering the periphery of the fore plug section, the matrix section, the functional section, and the filter section;

[0022] The functional segment is provided with a second airflow channel and a side airflow channel. The second airflow channel passes through both ends of the functional segment 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.

[0023] In some implementations, the ratio of the sum of the flow areas of all the side airflow channels provided in the functional section to the sum of the flow areas of all the first airflow channels provided in the front plug section is 20% to 60%.

[0024] And / or, on the outer peripheral surface of the functional segment, the ratio of the sum of the flow areas of all the side airflow channels provided on the functional segment to the outer peripheral surface area of ​​the functional segment is 0.003% to 3%.

[0025] In some implementations, the distance between the end face of the filter section away from the functional section and the side airflow channel in the first direction is 4mm to 40mm.

[0026] 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 12%;

[0027] And / or, the ratio of the dimension of the matrix segment along the first direction to the dimension of the foreplug segment along the first direction is 1.0 to 10.0;

[0028] And / or, the ratio of the dimension of the functional segment along the first direction to the dimension of the matrix segment along the first direction is 0.4 to 5.0;

[0029] And / or, the ratio of the size of the filter segment along the first direction to the size of the functional segment along the first direction is 0.1 to 10.0.

[0030] In some embodiments, the front plug section has a dimension of 4 mm to 10 mm along the first direction;

[0031] And / or, the size of the matrix segment along the first direction is 8 mm to 40 mm;

[0032] And / or, the dimension of the functional segment along the first direction is 16mm to 36mm;

[0033] And / or, the size of the filter section along the first direction is 4mm to 15mm.

[0034] This application provides an aerosol generation system according to a second embodiment, comprising:

[0035] An aerosol generating device having a receiving cavity;

[0036] 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.

[0037] The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

[0038] The aerosol generating article and aerosol generating system of this application, by setting the first matrix structure in the matrix segment as an integral structure, on the one hand, make the first matrix structure more stable and less prone to collapse, thereby improving the consistency of draw resistance. Moreover, compared with natural tobacco, the first matrix structure releases aerosols at a slower rate when heated, giving the matrix segment a slow-release effect and improving the user's smoking experience. On the other hand, the first matrix structure has higher density and occupies less volume than natural tobacco, which helps to shorten the size of the matrix segment and facilitates heat radiation into the interior of the matrix segment, thereby improving the heating uniformity of the matrix segment and improving the user's smoking experience. In addition, it also facilitates the manufacturing of the first matrix structure and can improve the manufacturing efficiency of the aerosol generating article. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of an aerosol-generating article provided in the first embodiment of this application;

[0040] Figure 2 A schematic diagram of the structure of an aerosol-generating article provided for the second embodiment of this application;

[0041] Figure 3 This is a schematic diagram of the structure of the matrix segment in an aerosol-generating product provided in the third embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the structure of the matrix segment in an aerosol-generating product provided in the fourth embodiment of this application;

[0043] Figure 5 This is a schematic diagram of an aerosol generation system provided in an embodiment of this application.

[0044] Explanation of reference numerals in the attached figures

[0045] 1. Aerosol generating product; 11. Forward plug section; 12. Matrix section; 121. First matrix structure; 122. Second matrix structure; 13. Functional section; 131. Support section; 132. Cooling section; 14. Filter section; 15. Coating layer; 15a. First through hole; 2. Aerosol generating device; 2a. Receiving cavity; 20. Outer shell; 21. Heating element; 22. Battery. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] One embodiment of this application provides an aerosol generating article 1, please refer to... Figure 1 and Figure 2 The aerosol generating article 1 includes a filter section 14, a functional section 13, a matrix section 12, and a pre-plug section 11 arranged along a first direction.

[0051] It should be noted that the first direction refers to Figure 1 The direction indicated by the middle arrow.

[0052] The matrix segment 12 is used to generate aerosols, for example, the matrix segment 12 releases aerosols when heated.

[0053] The aerosol generated by the matrix section 12 flows through the functional section 13 and the filter section 14 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 inhalation.

[0054] Functional section 13 and front plug section 11 are located at both ends of matrix section 12 along the first direction. Front plug section 11 can stop matrix section 12, effectively reducing the possibility of matrix section 12 shrinking and deforming and falling off after heating. In addition, front plug section 11 can also adsorb aerosols that flow back during non-vacuuming processes, reducing the possibility of backflowing aerosols overflowing from aerosol-generated product 1. Furthermore, front plug section 11 can also absorb condensate formed in matrix section 12, reducing the possibility of condensate flowing out of aerosol-generated product 1.

[0055] Filter section 14 is used to intercept large particles carried in aerosols, improving the user's suction experience.

[0056] Please refer to Figure 3 and Figure 4 The matrix segment 12 includes a dispersed first matrix structure 121.

[0057] It should be noted that the dispersed first matrix structure 121 refers to a large number of scattered first matrix structures 121 that are brought together by the constraints of other structures. The dispersed first matrix structure 121 itself cannot maintain the predetermined shape and structural strength, and needs to rely on other structures (such as the covering layer mentioned below) to maintain the predetermined shape.

[0058] Each of the first matrix structures 121 is an integral structure.

[0059] The aerosol-generating article 1 provided in this application embodiment, by setting the first matrix structure 121 in the matrix segment 12 as an integral structure, has the following advantages: Firstly, the first matrix structure 121 has better stability and is less prone to collapse, which improves the consistency of draw resistance. Moreover, compared with natural tobacco, the first matrix structure 121 releases aerosols more slowly when heated, giving the matrix segment 12 a slow-release effect and improving the user's smoking experience. Secondly, the first matrix structure 121 has higher density and occupies less volume than natural tobacco, which helps to shorten the size of the matrix segment 12 and facilitates heat radiation into the interior of the matrix segment 12, thereby improving the heating uniformity of the matrix segment 12 and improving the user's smoking experience. In addition, it also facilitates the manufacturing of the first matrix structure 121 and improves the manufacturing efficiency of the aerosol-generating article 1.

[0060] This application also provides an aerosol generation system; please refer to... Figure 5 The aerosol generation system includes an aerosol generation device 2 and an aerosol generation article 1 according to any embodiment.

[0061] 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.

[0062] 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 front plug section 11, which can improve the suction resistance when the user inhales and improve the user's inhalation experience.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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 14, the functional section 13, the matrix section 12, and the front plug section 11 is consistent with the first direction; the direction in which the aerosol generating article 1 is inserted into the aerosol generating device 2 and the direction in which the aerosol generating article 1 is removed from the aerosol generating device 2 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.

[0067] 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 14, the functional section 13, the matrix section 12, and the front plug section 11, or the direction in which the receiving cavity 2a takes in and places the aerosol generating article 1. The first direction of the aerosol generating article 1 can be any of the length, width, or height of the cuboid.

[0068] For example, the aerosol generating device 2 also includes a battery 22, which provides power to the heating element 21.

[0069] In some embodiments, the first matrix structure 121 is an extruded integral structure.

[0070] It should be noted that, in the embodiments of this application, the integral structure of extrusion refers to the structure formed by extrusion molding. Extrusion molding is a process in which materials are pushed by the screw through the action between the extruder barrel and the screw, and continuously passed through the die head to form products or semi-finished products of various cross-sections. For example, a first matrix structure 121 with approximately uniform quality is produced by physically recombining natural tobacco raw materials such as tobacco leaves, tobacco stems, and tobacco dust with liquid raw materials through processing and extrusion. Thus, the first matrix structure 121 has good stability and density.

[0071] In some embodiments, please refer to Figure 1 and Figure 2 The matrix segment 12 includes a coating layer that encapsulates the dispersed first matrix structure 121. It is understood that the coating layer can constrain the dispersed first matrix structure 121, improve the integrity of the matrix segment 12, and reduce the phenomenon of the first matrix structure 121 loosening and falling off.

[0072] In some embodiments, the filling density (in p) of the matrix segment 12 does not exceed 0.7 g / cm³. 3 (grams per cubic centimeter), i.e., p≤0.7g / cm³ 3 For example, p is 0.1 g / cm³. 3 0.2g / cm 3 0.3g / cm 3 0.4g / cm 3 0.5g / cm 3 0.6g / cm 3 or 0.7g / cm 3It is understandable that the reasonable filling density of the matrix segment 12 results in reasonable voids within the matrix segment 12, thereby ensuring reasonable suction resistance and improving the user's suction experience.

[0073] It should be noted that the filling density refers to the value obtained by dividing the mass m of the matrix segment 12 by the volume v of the outer contour of the matrix segment 12, that is, the filling density p = mass m ÷ volume v.

[0074] In some embodiments, the true density (denoted by p1) of the first matrix structure 121 is 1.0 g / cm³. 3 ~1.50g / cm 3 That is, 1.0 g / cm³ 3 ≤p1≤1.5g / cm 3 For example, p1 is 1.0 g / cm³. 3 1.1g / cm 3 1.2g / cm 3 1.3g / cm 3 1.4g / cm 3 Or 1.5g / cm 3 wait.

[0075] It should be noted that true density refers to the actual mass of the first matrix structure 121 per unit volume in a pore-free state, that is, the density after removing all pores. In other words, the volume here does not include the volume of the pores in the first matrix structure 121.

[0076] In related technologies, the density of tobacco shreds is 0.15 g / cm³. 3 ~0.30g / cm 3 It has a low true density, meaning that less tobacco can be packed into a unit volume, making it unsuitable for the long-term production of biosols.

[0077] In this embodiment, the first matrix structure 121 has a high true density, allowing more of it to fill the same volume of the matrix segment 12. This enables the matrix segment 12 to generate more aerosol for the user to inhale. Furthermore, it ensures good density of the first matrix structure 121, preventing it from collapsing. During heating, the first matrix structure 121 can slowly release aerosols, achieving a sustained-release effect and improving the user's inhalation experience.

[0078] It should be noted that the specific arrangement of the first matrix structure 121 in the matrix segment 12 is not limited.

[0079] In some embodiments, please refer to Figure 4 The first matrix structure 121 is arranged in an orderly manner.

[0080] It should be noted that ordered arrangement refers to the regular arrangement of the dispersed first matrix structures 121, for example, all the first matrix structures 121 extending along the first direction to form filaments.

[0081] For example, please refer to Figure 3 The first matrix structure 121 is randomly filled. Understandably, this is beneficial for improving the manufacturing efficiency of the matrix segment 12.

[0082] It should be noted that disordered filling refers to the random arrangement of the dispersed first matrix structure 121, for example, the random arrangement of the dispersed first matrix structure 121.

[0083] In some embodiments, the first matrix structure 121 is granular, strip-shaped, or sheet-shaped. That is, all the first matrix structures 121 may be granular, all the first matrix structures 121 may be strip-shaped, and all the first matrix structures 121 may be sheet-shaped.

[0084] It is understandable that the granular first matrix structure 121 has a small volume and large gaps between the granular first matrix structures, which makes the matrix segment 12 more breathable; the sheet-like first matrix structure 121 has high structural strength, which can improve the structural strength of the matrix segment 12; and the strip-like first matrix structure 121 is easy to manufacture, which can improve the manufacturing efficiency of the matrix segment 12.

[0085] For example, the first matrix structure 121 includes two or three of the following: a strip-shaped first matrix structure 121, a sheet-shaped first matrix structure 121, and a granular first matrix structure 121.

[0086] It should be noted that the specific structure of the matrix segment 12 is not limited. For example, the matrix segment 12 may include only the first matrix structure 121, or it may include matrix structures other than the first matrix structure 121.

[0087] In some embodiments, the matrix segment 12 includes a dispersed second matrix structure 122. It is understood that the matrix segment 12 includes a first matrix structure 121 and a second matrix structure 122, both of which can generate aerosols upon heating, allowing the user to inhale the aerosols generated by the two matrix structures, thus enriching the user's experience and improving the inhalation experience.

[0088] In this embodiment, the ratio of all first matrix structures 121 to all second matrix structures 122 in the matrix segment 12 is not limited; for example, the mass ratio of all first matrix structures 121 to all second matrix structures 122 is 10%.

[0089] It should be noted that the specific structure of the second matrix structure 122 is not limited. For example, the second matrix structure 122 may be a matrix structure obtained by the slurry method, the sheet method, the roll pressing method, or the cutting of natural tobacco leaves, etc., and there are no restrictions on this.

[0090] For example, the second matrix structure 122 is strip-shaped. It is understood that the strip-shaped second matrix structure 122 facilitates mixing with the first matrix structure 121, so that the first matrix structure 121 and the second matrix structure 122 can be heated evenly to improve the user's suction experience.

[0091] For example, the second matrix structure 122 is sheet-like. It is understood that the sheet-like second matrix structure 122 has high structural strength, and the mixing of the sheet-like second matrix structure 122 with the first matrix structure 121 can improve the structural strength of the matrix segment 12, so as to ensure the shape of the matrix segment 12 during the heated suction process.

[0092] For example, the second matrix structure 122 is granular. It is understood that the granular second matrix structure 122 can fill the gaps between the dispersed first matrix structures 121, and can fill more matrix structures when the volume of the matrix segment 12 remains unchanged, so that the matrix segment 12 can generate more aerosols.

[0093] It should be noted that the second matrix structure 122 being granular means that the shape of the second matrix structure 122 is granular. For example, the second matrix structure 122 is a regular or irregular particle with a size (which can be understood as particle size) between 0.5 mm and 3 mm in any direction.

[0094] For example, the second matrix structure 122 is strip-shaped, sheet-shaped, or granular. That is, all the second matrix structures 122 may be strip-shaped, all the second matrix structures 122 may be sheet-shaped, and all the second matrix structures 122 may be granular.

[0095] For example, all the second matrix structures 122 include two or three of the following: strip-shaped second matrix structure 122, sheet-shaped second matrix structure 122, and granular second matrix structure 122.

[0096] It should be noted that in embodiments where the matrix segment 12 includes a first matrix structure 121 and a second matrix structure 122, the first matrix structure 121 and the second matrix structure 122 may be randomly filled (see reference). Figure 3 The first matrix structure 121 and the second matrix structure 122 can also be ordered (see reference). Figure 4 ).

[0097] In some embodiments, the true density of the first matrix structure 121 is greater than the true density of the second matrix structure 122.

[0098] Understandably, during the heating process of the matrix segment 12, the first matrix structure 121, which has a higher density, generates aerosols at a slower rate after heating, while the second matrix structure 122, which has a lower density, generates aerosols at a faster rate after heating. This makes the aerosol generation rate of the matrix segment 12 more uniform during the heating process, thereby improving the user's suction experience.

[0099] The specific composition of the matrix segment 12 is not limited herein. Exemplarily, in one embodiment, the matrix segment 12 may include a smoke-generating agent component, etc. For example, the smoke-generating agent component accounts for 17% of the mass of the matrix segment 12.

[0100] It should be noted that the specific structure of functional segment 13 is not limited.

[0101] In some embodiments, please refer to Figure 2 Functional segment 13 includes cooling segment 132 and / or support segment 131.

[0102] Understandably, the support section 131 serves a supporting function. During the heating process of the aerosol-generated product 1, the support section 131 can maintain its own structural strength and shape, thereby achieving the supporting function for the aerosol-generated product 1. The cooling section 132 serves a cooling function. During the suction process, the airflow from the external environment can enter the cooling section 132 and mix with the aerosol, reducing the temperature of the aerosol.

[0103] It should be noted that the structure of the aforementioned functional segment 13 includes the following types: First, functional segment 13 includes a cooling segment 132; second, functional segment 13 includes a support segment 131; third, please refer to... Figure 2 Functional section 13 includes cooling section 132 and support section 131.

[0104] For example, please refer to Figure 1 and Figure 2 The aerosol generating article 1 also includes a coating layer 15, which covers the outer periphery of the filter section 14, the functional section 13, the matrix section 12, and the pre-plug section 11. It can be understood that the coating layer 15 can connect the filter section 14, the cooling section 132, the support section 131, the matrix section 12, and the pre-plug section 11, thereby improving the overall stability of the aerosol generating article 1.

[0105] It should be noted that the specific thickness of the wrapping layer 15 is not limited; for example, the thickness of the wrapping layer 15 is 0.06 mm.

[0106] The material of the wrapping layer 15 is not limited. For example, the wrapping layer 15 includes, but is not limited to, one or more of the following materials: fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butylene adipate-co-terephthalate).

[0107] In an embodiment where functional segment 13 includes cooling segment 132 and support segment 131, wrapping layer 15 covers the periphery of filter segment 14, cooling segment 132, support segment 131, matrix segment 12 and foreplug segment 11.

[0108] In an embodiment where functional segment 13 includes cooling segment 132, wrapping layer 15 covers the periphery of filter segment 14, cooling segment 132, matrix segment 12 and foreplug segment 11.

[0109] In an embodiment where functional segment 13 includes support segment 131, wrapping layer 15 covers the periphery of filter segment 14, support segment 131, matrix segment 12, and pre-plug segment 11.

[0110] In some embodiments, please refer to Figure 1 and Figure 2 The aerosol-generated product 1 is cylindrical. This improves the uniformity of the contour of the aerosol-generated product 1 along the first direction, which on the one hand enhances the appearance of the aerosol-generated product 1, and on the other hand facilitates the coating layer 15 to better cover the front plug section 11, matrix section 12, support section 131, cooling section 132 and filter section 14, thereby reducing the manufacturing difficulty of the aerosol-generated product 1.

[0111] 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 functional section 13, and the filter section 14. The front plug section 11, the matrix section 12, the functional section 13, and the filter section 14 are all cylindrical, and their axial directions coincide.

[0112] It should be noted that the diameter of the cylinder is not limited, for example, the diameter is 5mm to 7mm, such as 5mm, 5.4mm, 6mm, 6.8mm or 7mm, etc.

[0113] It should be noted that the pre-plug section 11, matrix section 12, functional section 13 and filter section 14 can all be passed through by airflow. For example, during the suction process, the external airflow passes through the pre-plug section 11 and enters the matrix section 12. After the airflow extracts the aerosol generated by the matrix section 12, it flows out through the functional section 13 and then out of the filter section 14.

[0114] In some embodiments, please refer to Figure 1and Figure 2 The dimension (hereinafter referred to as H) of the aerosol generating article 1 along the first direction is 40mm to 90mm. That is, 40mm ≤ H ≤ 90mm, for example, H is 40mm, 45mm, 48mm, 54mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm or 90mm. It is understandable that a reasonable length of the aerosol generating article 1 ensures that the user can smoothly draw in the aerosol while the aerosol has sufficient path for cooling, thereby improving the user's drawing experience.

[0115] In some embodiments, please refer to Figure 1 and Figure 2 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, 7.5, 10, 11.02, 11.11, 15, 20, or 23, etc. This makes the thickness of the aerosol generating article 1 reasonable, ensuring that the aerosol generating article 1 is not easily broken while not having a large volume, thus facilitating the carrying and transportation of the aerosol generating article 1.

[0116] 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 15 mmWG to 50 mmWG (mmWG, a unit of static pressure representing millimeters of water column), that is, 15 mmWG ≤ RTD ≤ 50 mmWG. For example, RTD can be 15 mmWG, 16 mmWG, 17 mmWG, 18 mmWG, 19 mmWG, 20 mmWG, 25 mmWG, 30 mmWG, 35 mmWG, 40 mmWG, 45 mmWG, or 50 mmWG, etc.

[0117] 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.

[0118] In some embodiments, please refer to Figure 1 and Figure 2The ratio of the dimension of the front plug section 11 along the first direction (hereinafter referred to as H1) to the dimension of the aerosol generating product 1 along the first direction is 4% to 12%, that is, 4% ≤ H1 / H ≤ 12%. For example, H1 / H is 4%, 5%, 8%, 10%, 11%, or 12%, etc. 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 receiving cavity 2a of the aerosol generating device 2 caused by the backflowing aerosols, maintaining the cleanliness of the receiving cavity 2a of the aerosol generating device 2, and also ensuring that the suction resistance of the front plug section 11 is reasonable, so as not to affect the airflow from the front plug section 11 into the matrix section 12, thereby ensuring the extraction efficiency of aerosols in the matrix section 12 during the suction process.

[0119] For example, please refer to Figure 1 and Figure 2 The dimension H1 of the front plug section 11 along the first direction is 4mm to 10mm, that is, 4mm≤H1≤10mm. For example, H1 is 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm.

[0120] It should be noted that the dimension of the front plug section 11 along the first direction is the distance between the two opposite ends of the front plug section 11 along the first direction, and also relative to the length dimension of the front plug section 11.

[0121] In some embodiments, the front plug section 11 is provided with one or more first airflow channels, which penetrate the end faces of both ends of the front plug section 11 along a first direction. It is understood that the first airflow channels penetrating the end faces of opposite ends of the front plug section 11 along the first direction helps to improve the air permeability of the front plug section 11, making it easier for airflow from the external environment to enter the matrix section 12 to extract aerosols and facilitate suction by the user.

[0122] For example, 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 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 is 10%, 20%, 30%, 40%, 50%, 60%, 65%, 70%, 75%, or 80%, etc.

[0123] It is understandable that the ratio of the sum of the flow areas S1 of all the first airflow channels to the cross-sectional area S2 of the front plug section 11 is reasonable, so that the first airflow channels have a reasonable cross-sectional area. While improving the air permeability of the front plug section 11, it can also ensure that the aerosols that flow back during non-suction processes can be adsorbed by the front plug section 11 as much as possible.

[0124] It should be noted that the sum of the flow areas S1 of the first airflow channels mentioned above refers to the sum of the areas enclosed by the outer contours of the largest cross-section of all the first airflow channels.

[0125] In some embodiments, please refer to Figure 1 and Figure 2 The ratio of the dimension of the matrix segment 12 along the first direction (hereinafter referred to as H2) to the dimension H1 of the foreplug segment 11 along the first direction is 1.0 to 10.0, that is, 1 ≤ H2 / H1 ≤ 10. For example, H2 / H1 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, etc. This ensures that the length of the matrix segment 12 is reasonable, so that the aerosol generating product 1 has a sufficient matrix segment 12 to generate sufficient aerosol. In addition, it also ensures that the suction resistance of the matrix segment 12 is reasonable, which is beneficial for the user to extract aerosols during the suction process.

[0126] For example, please refer to Figure 1 and Figure 2 The size of the matrix segment 12 along the first direction is 8mm to 40mm, that is, 8mm≤H2≤40mm. For example, H2 is 8mm, 9mm, 10mm, 15mm, 20mm, 25mm, 28mm, 30mm, 35mm or 40mm.

[0127] It should be noted that the dimension of the matrix segment 12 along the first direction is the distance between the two opposite ends of the matrix segment 12 along the first direction, and also relative to the length dimension of the matrix segment 12.

[0128] In some embodiments, please refer to Figure 1 and Figure 2 The ratio of the dimension of functional segment 13 along the first direction (hereinafter referred to as H3) to the dimension H2 of matrix segment 12 along the first direction is 0.4 to 5.0, that is, 0.4 ≤ H3 / H2 ≤ 5. For example, H3 / H2 is 0.4, 1, 2, 3, 4, or 5, etc. This makes the length of functional segment 13 reasonable, ensuring that functional segment 13 can effectively cool aerosols while reducing the probability of aerosols being condensed and trapped prematurely at functional segment 13, improving the aerosol transmission efficiency of functional segment 13, and improving the user's suction experience.

[0129] For example, please refer to Figure 1 and Figure 2 The dimension H3 of functional segment 13 along the first direction is 16mm to 36mm, that is, 16mm≤H3≤36mm. For example, H3 is 16mm, 20mm, 25mm, 26mm, 30mm, 35mm or 36mm.

[0130] It should be noted that the dimension of functional segment 13 along the first direction is the distance between the two opposite ends of functional segment 13 along the first direction, and also relative to the length dimension of functional segment 13.

[0131] It should be noted that, in the embodiment where functional segment 13 includes cooling segment 132 and support segment 131, the dimension H3 of functional segment 13 along the first direction is the sum of the dimension of cooling segment 132 along the first direction and the dimension of support segment 131 along the first direction; in the embodiment where functional segment 13 includes cooling segment 132, the dimension H3 of functional segment 13 along the first direction is the dimension of cooling segment 132 along the first direction; in the embodiment where functional segment 13 includes support segment 131, the dimension H3 of functional segment 13 along the first direction is the dimension of support segment 131 along the first direction.

[0132] In some embodiments, please refer to Figure 1 and Figure 2 Functional segment 13 is provided with a second airflow channel and a side airflow channel. The second airflow channel runs through both ends of functional segment 13 along the first direction. The wrapping layer 15 is provided with a first through-hole 15a. The side airflow channel connects the first through-hole 15a and the second airflow channel, and is used to guide the airflow from the first through-hole 15a to the second airflow channel. It is understood that external airflow entering through the first through-hole 15a can flow into the second airflow channel via the side airflow channel. The external airflow can cool the aerosol in the second airflow channel, improving the cooling capacity of functional segment 13 and reducing the problem of users experiencing "burning their mouths" during suction.

[0133] In some embodiments, the ratio of the sum of the flow areas of all the side airflow channels provided in the functional section 13 (hereinafter referred to as S3) to the sum of the flow areas of all the first airflow channels provided in the front plug section 11, S2, is 20% to 60%, that is, 20% ≤ S3 / S1 ≤ 60%. For example, S3 / S1 is 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, or 60%, etc.

[0134] This design ensures that the side airflow channel has a reasonable flow area, allowing for a reasonable flow rate of external airflow entering the second airflow channel. On one hand, the flow rate of external airflow into the second airflow channel is not excessive, reducing the possibility of excessive dilution of the aerosol by the external airflow and ensuring the extraction efficiency of the aerosol during the suction process, thus guaranteeing the user's suction experience. On the other hand, the flow rate of external airflow into the second airflow channel is not too low, which is beneficial for the functional section 13 to cool the aerosol, reducing the problem of "burning the mouth" for the user during suction.

[0135] For example, on the outer peripheral surface of functional segment 13, the ratio of the sum of the flow areas S3 of all the side airflow channels provided in functional segment 13 to the outer peripheral surface area of ​​functional segment 13 (hereinafter referred to as S4) is 0.003% to 3%, that is, 0.003% ≤ S3 / S4 ≤ 3%. For example, S3 / S4 is 0.003%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, or 3.0%, etc.

[0136] It should be noted that the outer peripheral surface area of ​​functional segment 13 refers to the area of ​​functional segment 13 unfolded circumferentially.

[0137] In some embodiments, please refer to Figure 1 and Figure 2 The ratio of the dimension of the filter section 14 along the first direction (hereinafter referred to as H4) to the dimension of the functional section 13 along the first direction H3 is 0.1 to 10.0, that is, 0.1≤H4 / H3≤10. For example, H3 / H2 is 0.1, 0.2, 0.3, 0.4, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc.

[0138] This makes the length of the filter section 14 reasonable, ensuring that the filter section 14 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 14, improving the transmission efficiency of the filter section 14 for aerosols, and improving the user's suction experience.

[0139] For example, please refer to Figure 1 and Figure 2 The size of the filter section 14 along the first direction is 4mm to 15mm, that is, 4mm≤H4≤15mm. For example, H4 is 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, etc.

[0140] It should be noted that the dimension of the filter section 14 along the first direction is the distance between the two opposite ends of the filter section 14 along the first direction, and also relative to the length dimension of the filter section 14.

[0141] In some embodiments, please refer to Figure 1 and Figure 2 The distance between the end face of the filter section 14 away from the functional section 13 and the side airflow channel in the first direction (hereinafter referred to as H5) is 4mm to 40mm, that is, 4mm≤H5≤40mm. For example, H4 is 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 15mm, 20mm, 25mm, 26mm, 30mm, 35mm or 40mm, etc.

[0142] This design ensures that the distance between the mixing point of the external airflow and aerosol in the second airflow channel and the end face of the filter section 14 away from the functional section 13 is reasonable. On the one hand, during the user's inhalation process, the mixing point of the external airflow and aerosol is not too close to the user's mouth, ensuring that the external airflow can fully mix with the aerosol, which is beneficial for cooling the aerosol and can reduce the problem of "burning the mouth" during inhalation. On the other hand, the mixing point of the external airflow and aerosol is not too far from the user's mouth, which can reduce the possibility of premature condensation of the aerosol in the second airflow channel, improve the transmission efficiency of the functional section 13 for the aerosol, and improve the user's inhalation experience.

[0143] In some specific embodiments, please refer to Figure 1 and Figure 4 Functional section 13 includes a support section 131 or a cooling section 132. The aerosol generating product 1 is cylindrical with a diameter of 5.4 mm and a dimension of 60 mm along the first direction. The dimensions of the filter section 14, the support section 131 or cooling section 132, the matrix section 12, and the pre-plug section 11 along the first direction are 8 mm, 26 mm, 20 mm, and 6 mm, respectively. The matrix section 12 includes a dispersed first matrix structure 121, which is arranged in an orderly manner. The filling density of the matrix section 12 is 0.611 g / cm³. 3 .

[0144] In other specific embodiments, please refer to Figure 2 and Figure 3 Functional section 13 includes a support section 131 and a cooling section 132. The aerosol generating product 1 is cylindrical with a diameter of 6.8 mm and a dimension of 75 mm along the first direction. The dimensions of the filtration section 14, cooling section 132, support section 131, matrix section 12, and pre-plug section 11 along the first direction are 6 mm, 10 mm, 25 mm, 28 mm, and 6 mm, respectively. The matrix section 12 includes a dispersed first matrix structure 121 and a second matrix structure 122. The second matrix structure 122 is strip-shaped, and the dispersed first matrix structure 121 and second matrix structure 122 are randomly filled. The filling density of the matrix section 12 is 0.355 g / cm³. 3 .

[0145] 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.

[0146] 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, include: A filter section, a functional section, a matrix section, and a pre-plug section are arranged along a first direction, wherein the matrix section is used to generate aerosols; The matrix segment includes dispersed first matrix structures, wherein each of the first matrix structures is an integral structure.

2. An aerosol-generating article according to claim 1, wherein, The first matrix structure is granular, strip-shaped, or sheet-like.

3. An aerosol-generating article according to claim 1, wherein, The first matrix structure is an extruded integral structure.

4. An aerosol-generating article according to claim 1, wherein, The matrix segment includes a dispersed second matrix structure, wherein the true density of the first matrix structure is greater than the true density of the second matrix structure.

5. An aerosol-generating article according to claim 4, wherein, The second matrix structure is granular, strip-shaped, or sheet-like.

6. An aerosol-generating article according to claim 1, wherein, The first matrix structure has a true density of 1.0 g / cm 3 ~ 1.50 g / cm 3 .

7. An aerosol-generating article according to claim 1, wherein, The packing density of the substrate section is not more than 0.7 g / cm 3 .

8. The aerosol-generating article according to claim 1, wherein, The first matrix structure is arranged in an ordered manner, or the first matrix structure is filled in a disordered manner.

9. An aerosol-generating article according to any one of claims 1 to 8, wherein, The functional section includes a cooling section and / or a support section.

10. An aerosol-generating article according to any one of claims 1 to 8, wherein, The aerosol-generated product has a dimension of 40 mm to 90 mm along the first direction; And / or, the aerosol-generated article is cylindrical, and the diameter of the aerosol-generated article is 5mm to 7mm; And / or, the aerosol generating article is cylindrical, and the ratio of the diameter of the aerosol generating article to the dimension of the aerosol generating article along the first direction is 5.0 to 23.0; And / or, the suction resistance of the aerosol-generated article is 15 mmWG to 50 mmWG.

11. An aerosol-generating article according to any one of claims 1 to 8, wherein, The front plug section is provided with one or more first airflow channels, the first airflow channels passing through the end faces of both ends of the front plug section along the first direction; 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 front plug section to the cross-sectional area of ​​the front plug section is 10% to 80%.

12. An aerosol-generating article according to claim 11, wherein, The aerosol-generating article further includes a coating layer, which covers the outer periphery of the fore plug section, the matrix section, the functional section, and the filter section; The functional segment is provided with a second airflow channel and a side airflow channel. The second airflow channel passes through both ends of the functional segment 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.

13. An aerosol-generating article according to claim 12, wherein, The ratio of the sum of the flow areas of all the side airflow channels in the functional section to the sum of the flow areas of all the first airflow channels in the front plug section is 20% to 60%. And / or, on the outer peripheral surface of the functional segment, the ratio of the sum of the flow areas of all the side airflow channels provided on the functional segment to the outer peripheral surface area of ​​the functional segment is 0.003% to 3%.

14. An aerosol-generating article according to claim 12, wherein, The distance between the end face of the filter section away from the functional section and the side airflow channel in the first direction is 4mm to 40mm.

15. An aerosol-generating article according to any one of claims 1 to 8, wherein, The ratio of the dimension of the fore plug section along the first direction to the dimension of the aerosol-generated article along the first direction is 4% to 12%. And / or, the ratio of the dimension of the matrix segment along the first direction to the dimension of the foreplug segment along the first direction is 1.0 to 10.0; And / or, the ratio of the dimension of the functional segment along the first direction to the dimension of the matrix segment along the first direction is 0.4 to 5.0; And / or, the ratio of the size of the filter segment along the first direction to the size of the functional segment along the first direction is 0.1 to 10.

0.

16. An aerosol-generating article according to any one of claims 1 to 8, wherein, The front plug section has a dimension of 4mm to 10mm along the first direction; And / or, the size of the matrix segment along the first direction is 8 mm to 40 mm; And / or, the dimension of the functional segment along the first direction is 16mm to 36mm; And / or, the size of the filter section along the first direction is 4mm to 15mm.

17. An aerosol-generating system comprising: include: An aerosol generating device having a receiving cavity; And the aerosol-generating articles according to any one of claims 1-16; At least a portion of the aerosol-generated article is contained within the receiving cavity. The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

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