An aerosol-generating article and an aerosol-generating device

Abstract

The application relates to the aerosol generating technical field and provides an aerosol generating article and an aerosol generating device. The aerosol generating article comprises a substrate section and a front plug section. The substrate section is used for generating an aerosol. The front plug section comprises a first part and a second part. The first part is arranged at one end of the substrate section along a first direction. The second part is connected to one end of the first part close to the substrate section, and the second part extends into the substrate section. The cross-sectional area of the second part is smaller than that of the first part in a cross section perpendicular to the first direction. The aerosol generating article provided by the application can improve the connection stability of the substrate section and the front plug section.

Description

Technical Field

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

[0002] This section is intended to provide background or context for embodiments of this application. The description herein is not intended to imply that it is prior art simply because it is included in this section.

[0003] In related technologies, aerosol-generating products include a matrix section and a pre-plug section. The matrix section can generate aerosols by heating without combustion. How to improve the connection stability between the matrix section and the pre-plug section is an important research direction in this field. Utility Model Content

[0004] In view of this, the present application aims to provide an aerosol generating article and an aerosol generating apparatus that can improve the connection stability of the matrix section and the forepump section.

[0005] The first aspect of this application provides an aerosol generating article, comprising:

[0006] The matrix segment is used to generate aerosols;

[0007] The front plug section includes a first portion and a second portion, the first portion being disposed at one end of the matrix section along a first direction, the second portion being connected to the end of the first portion near the matrix section, and the second portion extending into the matrix section;

[0008] The cross-section perpendicular to the first direction is used as the cross-section, and the cross-sectional area of ​​the second part is smaller than that of the first part.

[0009] In some embodiments, both the first and second portions are porous structures.

[0010] In some embodiments, the first part has a first region and a second region, the first region is connected to the second part, the suction resistance of the first region is less than the suction resistance of the second region, and the maximum suction resistance of the second part is less than the suction resistance of the first region.

[0011] In some embodiments, one end of the first region along a first direction is connected to the second portion, and the other end of the first region along the first direction is flush with the surface of the second region away from the matrix segment.

[0012] In some embodiments, the first region is a cavity structure.

[0013] In some embodiments, the ratio of the pull resistance of the first region to the pull resistance of the second region is 0 to 0.75.

[0014] In some embodiments, the first part has a first region and a second region, the suction resistance of the first region is less than that of the second region, the second part has a third region and a fourth region, the suction resistance of the third region is less than that of the fourth region, and the first region is connected to the third region.

[0015] In some embodiments, the ratio of the suction resistance of the third region to that of the fourth region is 0 to 0.75.

[0016] In some embodiments, the second portion is provided with pores that connect to the third region and penetrate the outer surface of the second portion.

[0017] In some embodiments, the matrix segment forms an air intake passage, the second portion extends into the air intake passage, and the vent connects the third region and the air intake passage.

[0018] In some embodiments, the first region is connected to the air intake duct, and the ratio of the maximum cross-sectional area of ​​the first region to the maximum cross-sectional area of ​​the air intake duct is 0.3 to 5.

[0019] In some embodiments, the third region is a cavity structure.

[0020] In some embodiments, the ratio of the cross-sectional area of ​​the first region to the minimum cross-sectional area of ​​the first part is 0.05 to 0.95.

[0021] In some embodiments, the ratio of the cross-sectional area of ​​the third region to the minimum cross-sectional area of ​​the second portion is 0.05 to 0.95.

[0022] In some embodiments, the suction resistance of the second portion increases from the direction away from the matrix segment to the direction closer to the matrix segment.

[0023] In some embodiments, the first portion has a protrusion on the side facing the matrix segment, the protrusion being accommodated within the airway of the matrix segment.

[0024] In some embodiments, a boss is formed on the peripheral sidewall of the second portion, the boss abutting against the wall of the air intake passage of the matrix section.

[0025] In some embodiments, the maximum circumference of the first portion around the first direction is 12 mm to 62 mm.

[0026] In some embodiments, the maximum circumference of the second portion around the first direction is 1.5 mm to 61 mm.

[0027] In some embodiments, the length of the first portion along the first direction is 3 mm to 45 mm.

[0028] In some embodiments, the length of the second portion along the first direction is 3 mm to 48 mm.

[0029] In some embodiments, the first portion is any one of columnar, frustum-shaped, and conical.

[0030] In some embodiments, the second portion is any one of columnar, frustum-shaped, and conical.

[0031] In some embodiments, the thermal conductivity of the second portion is not less than 1.4 mm. 2 / s.

[0032] In some embodiments, the second part is capable of generating heat.

[0033] In some embodiments, both the first and second portions contain flavoring substances.

[0034] A second aspect of this application provides an aerosol generating apparatus, including a heating element and an aerosol generating article as described in any of the preceding claims, wherein the heating element is used to heat the aerosol generating article to generate an aerosol.

[0035] The aerosol generation matrix provided in this application embodiment has a first portion disposed at the distal lip end of the matrix segment. The first portion is used to prevent aerosol backflow so that the user can draw in the aerosol. The second portion extends into the matrix segment. For example, at least a portion of the outer surface of the second portion can contact the matrix segment. This increases the connection area between the foreplug segment and the matrix segment, thereby improving the connection stability between the foreplug segment and the matrix segment. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of aerosol-generated articles provided in some embodiments of this application;

[0037] Figure 2 Schematic diagrams of the structure of aerosol-generated articles provided in other embodiments of this application;

[0038] Figure 3 for Figure 2 A schematic diagram of the structure shown from another perspective;

[0039] Figure 4 A schematic diagram of the structure of an aerosol-generated article provided in some embodiments of this application;

[0040] Figure 5 The diagram shows the structure of an aerosol-generated article provided in some embodiments of this application, wherein the first region and the third region are both cavity structures;

[0041] Figure 6The diagram shows the structure of an aerosol-generated article provided in some embodiments of this application, wherein the second part has pores and the third region has a cavity structure.

[0042] Figure 7 This is a schematic diagram of the structure of an aerosol-generated article provided in some embodiments of this application, wherein the second part has pores;

[0043] Figure 8 The diagram shows the structure of an aerosol-generating article provided in some embodiments of this application, wherein an airflow channel is formed in the first part and a boss is provided in the second part.

[0044] Figure 9 The diagram shows the structure of an aerosol-generating article provided in some embodiments of this application, wherein an airflow channel is formed in the first part and a protrusion is provided in the first part;

[0045] Figure 10 This is a schematic diagram of the structure of an aerosol-generating article provided in some embodiments of this application, wherein a protrusion is provided in the first part;

[0046] Figure 11 This is a schematic diagram of the structure of an aerosol generating apparatus provided in some embodiments of this application.

[0047] Explanation of reference numerals in the attached figures

[0048] 10. Aerosol-generating products;

[0049] 1. Matrix section; 1a. Intake airway; 1b. Airway;

[0050] 2. Front plug section;

[0051] 21. First part; 21a. Airflow channel; 211. First region; 212. Second region; 213. Protrusion;

[0052] 22. Second part; 22a. Pore; 221. Third region; 222. Fourth region; 223. Boss;

[0053] 3. Functional section; 31. Support section; 32. Cooling section; 33. Filtration section;

[0054] 4. Encapsulation layer. Detailed Implementation

[0055] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0056] In the description of the embodiments of this application, the "first direction" orientation or positional relationship is based on Figure 1 , Figure 2 and Figures 4 to 11 The orientation or positional relationship shown is for illustrative purposes only and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application.

[0057] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features / embodiments can form different implementation methods. To avoid unnecessary repetition, the various possible combinations of various specific technical features / embodiments in this application will not be described separately. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] It should be noted that in this application, "at least one" means one or more, and "multiple" means two or more.

[0059] In this application, the unit "mm" refers to millimeters. 2 / s means millimeters squared per second. The unit "W / (m·K)" means watts per meter per degree. The unit "Pa" means pascal. The unit "℃" means degree Celsius.

[0060] Please see Figures 1 to 11 This application provides an aerosol generating article 10, including a matrix section 1 and a front plug section 2. The matrix section 1 is used to generate aerosols. The front plug section 2 includes a first part 21 and a second part 22. The first part 21 is disposed at one end of the matrix section 1 along a first direction. The second part 22 is connected to the end of the first part 21 near the matrix section 1 and extends into the matrix section 1. Taking the cross section perpendicular to the first direction as the cross section, the cross-sectional area of ​​the second part 22 is smaller than the cross-sectional area of ​​the first part 21.

[0061] Matrix segment 1 is suitable for generating aerosols through heating without combustion. That is, matrix segment 1 is heated below its ignition point to generate aerosols without combustion. In other applications, matrix segment 1 can also be used to generate aerosols through ignition. The matrix segment 1 provided in this application primarily generates aerosols through heating without combustion.

[0062] The front plug section 2 is used to seal the distal lip of the matrix section 1 to prevent aerosol backflow, allowing the user to smoothly draw in the aerosol. Furthermore, the front plug section 2 can directly contact the matrix section 1, and it also serves to clean the matrix section 1 and prevent it from falling off.

[0063] It should be noted that the distal lip end refers to the direction away from the user's lips along the first direction, while the proximal lip end is the opposite direction to the distal lip end. The proximal lip end refers to the direction closer to the user's lips along the first direction.

[0064] Please see Figure 1 The first part 21 is located at the distal lip of the matrix segment 1, that is, the first part 21 is used to seal the matrix segment 1 to prevent aerosol backflow. The second part 22 extends into the matrix segment 1, and at least part of the outer surface of the second part 22 is in contact with the matrix segment 1. In this way, the connection area between the foreplug segment 2 and the matrix segment 1 can be increased, thereby improving the connection stability between the foreplug segment 2 and the matrix segment 1.

[0065] Please see Figure 2 and Figure 3 The cross-sectional area of ​​the second part 22 is smaller than that of the first part 21. In other words, the front plug section 2 is roughly T-shaped. Thus, by extending the second part 22 into the matrix section 1, it is easy to assemble the front plug section 2 with the matrix section 1.

[0066] In one embodiment, the cross-sectional area of ​​the first portion 21 is not less than the cross-sectional area of ​​the matrix section 1. Thus, the foreplug section 2 provides better barrier properties against the aerosols generated by the matrix section 1, effectively preventing aerosol backflow. For example, please refer to... Figure 1 The cross-sectional area of ​​the first part 21 is equal to the cross-sectional area of ​​the matrix segment 1.

[0067] The connection method of the first part 21 and the second part 22 is not limited. For example, the first part 21 and the second part 22 can be connected by physical means (such as riveting, mechanical adhesion, etc.) or chemical means (chelation at the interface, cross-linking, etc.).

[0068] The aerosol generation matrix provided in this embodiment has a first portion 21 disposed at the distal lip of the matrix segment 1. The first portion 21 is used to prevent aerosol backflow so that the user can aspirate the aerosol. A second portion 22 extends into the matrix segment 1. For example, at least a portion of the outer surface of the second portion 22 can contact the matrix segment 1, thereby increasing the connection area between the fore-plug segment 2 and the matrix segment 1, and thus improving the connection stability between the fore-plug segment 2 and the matrix segment 1.

[0069] In one embodiment, the matrix segment 1 includes at least one of sheet matrix, filament matrix, granular matrix and paste matrix.

[0070] For example, a sheet matrix refers to a flat matrix that is sheet-shaped.

[0071] Filamentous matrix refers to a matrix that is filamentous or strip-shaped.

[0072] Granular matrix refers to a matrix that is granular in shape.

[0073] Paste-like matrix refers to a matrix that has a toothpaste-like appearance.

[0074] In one embodiment, the front plug section 2 is a one-piece structure, meaning that the front plug section 2 is a single, indivisible physical unit that can maintain its overall state without the need for external components. This facilitates manufacturing and also provides durability. For example, the front plug section 2 can be manufactured using processes such as injection molding, blow molding, extrusion, or 3D printing.

[0075] In one embodiment, there can be multiple second portions 22, which are circumferentially spaced around the first portion 21 in the first direction. This can further increase the contact area between the front plug segment 2 and the matrix segment 1 and improve the connection stability between the front plug segment 2 and the matrix segment 1.

[0076] This application also provides an aerosol generating apparatus, including a heating element and an aerosol generating article 10 as described in any embodiment of this application. The heating element is used to heat the aerosol generating article 10 to generate aerosol.

[0077] Specifically, the heating element heats the substrate section 1 to generate an aerosol, and the specific method by which the heating element heats the substrate section 1 is not limited.

[0078] For example, the heating element is a resistance heating wire, which can be attached to the aerosol generating product 10. After the heating element is turned on, it transfers heat to the matrix segment 1 to generate aerosol in the matrix segment 1. As another example, the heating element is a laser heating device, which irradiates the aerosol generating product 10 with a high-energy laser to raise the temperature of the matrix segment 1, thereby generating aerosol in the matrix segment 1.

[0079] For example, a heating element may be disposed inside the second portion 22 to centrally heat the substrate segment 1. Central heating means that the heating element is inserted inside the second portion 22 to bake and heat the substrate segment 1 radially from the inside to the outside. A heating element may be disposed on the outer periphery of the substrate segment 1 to circumferentially heat the substrate segment 1. Circumferential heating means that the heating element may be disposed in a plurality of second portions 22 spaced apart circumferentially to bake and heat the substrate segment 1 radially from the outside to the inside. A heating element may be disposed at the distal lip end of the substrate segment 1 to bottom heat the substrate segment 1. Bottom heating means that the heating element is disposed at the bottom of the second portion 22, i.e., the distal lip end, to bake and heat the substrate segment 1 from the distal lip end to the proximal lip end.

[0080] It should be noted that the radial direction is perpendicular to the first direction, and the radial direction is the direction of a ray passing through the center line of the product segment in a plane perpendicular to the first direction. "Inner" refers to the side closer to the center line in the radial direction, while "outer" is the opposite direction, referring to the side farther from the center line in the radial direction.

[0081] In some embodiments, both the first portion 21 and the second portion 22 are porous structures. In other words, the front plug section 2 has a porous structure, which means that the interior of the front plug section 2 has multiple interconnected pores that communicate with each other and with the outer surface of the front plug section 2. The pores in the porous structure facilitate gas flow, and the pores can have capillary force, which can guide the airflow to the matrix section 1, thereby increasing the air intake of the matrix section 1.

[0082] In this way, both the first part 21 and the second part 22 have multiple holes. Since the second part 22 is located inside the matrix section 1, the external airflow can flow into the matrix section 1 through the multiple interconnected holes, passing through the first part 21 and the second part 22 in sequence. The second part 22 has a large contact area with the matrix section 1, so the airflow can flow into the matrix section 1 as much as possible and mix thoroughly with the aerosol generated by the matrix section 1, thereby improving the aerosol extraction efficiency, ensuring that users can inhale a rich-tasting aerosol, and improving the user experience.

[0083] In some embodiments, please refer to Figure 1 and Figures 4 to 10 The first part 21 has a first region 211 and a second region 212. The first region 211 is connected to the second part 22. The suction resistance of the first region 211 is less than the suction resistance of the second region 212. The maximum suction resistance of the second part 22 is less than the suction resistance of the first region 211.

[0084] For example, please refer to Figures 4 to 10 The second region 212 surrounds the first region 211 along the first direction on a circumferential surface. The first region 211 and the second region 212 have a large contact area, which can improve the connection stability of the first region 211 and the second region 212.

[0085] The suction resistance of the first region 211 is lower than that of the second region 212, and the first region 211 connects to the second part 22. In this way, most of the external airflow will preferentially flow to the first region 211, then through the first region 211 to the second part 22, and finally into the matrix section 1. Thus, a large amount of airflow mixes with the aerosol, improving aerosol extraction efficiency and enhancing the user experience.

[0086] The maximum suction resistance of the second part 22 is less than that of the first region 211. As a result, the airflow resistance is smaller, and the airflow can flow smoothly to the second part 22.

[0087] In some embodiments, please refer to Figure 1 and Figure 4 One end of the first region 211 along the first direction is connected to the second part 22, and the other end of the first region 211 along the first direction is flush with the surface of the second region 212 away from the matrix segment 1.

[0088] For details, please continue reading Figure 1 and Figure 4 The surfaces of the first region 211 and the second region 212 are flush at the distal lip end. In this way, the surface of the first region 211 is exposed, and the external airflow does not need to flow through the second region 212 to the first region 211. The airflow can flow directly into the first region 211, so a large amount of airflow can flow smoothly into the first region 211, thereby increasing the air intake of the first region 211.

[0089] In some embodiments, please refer to Figure 5 The first region 211 is a cavity structure. A cavity structure refers to a hollow region with multiple clearly defined boundaries, in which no structures are placed. In other words, there are no other structures within the first region 211, allowing external airflow to flow more smoothly through the first region 211 to the second part 22.

[0090] In one embodiment, please refer to Figure 5 The first region 211 extends along the first direction, that is to say, the cavity structure extends along the first direction. In this way, the airflow flows roughly along the first direction, which helps to reduce the flow resistance of the airflow and allows the gas to flow smoothly.

[0091] In some embodiments, the ratio of the suction resistance of the first region 211 to the suction resistance of the second region 212 is 0 to 0.75. It should be understood that when the ratio of the suction resistance of the first region 211 to the suction resistance of the second region 212 is 0, the suction resistance of the first region 211 is 0, that is, the first region 211 is a cavity structure.

[0092] The ratio of the suction resistance of the first region 211 to that of the second region 212 is within the aforementioned range, which makes the first region 211 have a stronger airflow traction capability, which is conducive to smooth airflow.

[0093] For example, the ratio of the pull resistance of the first region 211 to the pull resistance of the second region 212 can be any value or a range of any two values ​​from 0, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, and 0.75. Preferably, it is between 0 and 0.6.

[0094] In some embodiments, please refer to Figure 1 and Figures 4 to 10 The second part 22 has a third region 221 and a fourth region 222. The suction resistance of the third region 221 is less than that of the fourth region 222. The first region 211 is connected to the third region 221.

[0095] For example, please refer to Figures 4 to 10The fourth region 222 surrounds the third region 221 along the circumferential surface in the first direction. The third region 221 and the fourth region 222 have a large contact area, which can improve the connection stability between the third region 221 and the fourth region 222.

[0096] The suction resistance of the third region 221 is less than that of the fourth region 222, and the first region 211 is connected to the third region 221. In this way, the airflow in the first region 211 will preferentially flow to the third region 221, and then flow into the matrix section 1 via the third region 221.

[0097] In one embodiment, the surfaces of the third region 221 and the fourth region 222 are flush with the ends of the first region 211 away from the first region along the first direction. That is, the surface of the third region 221 is exposed to facilitate the flow of air into the matrix section 1.

[0098] In some embodiments, please refer to Figure 5 The third region 221 is a cavity structure. That is to say, there are no other structures in the third region 221, and the airflow can flow more smoothly into the matrix section 1 through the third region 221.

[0099] In one embodiment, please refer to Figure 5 The third region 221 extends along the first direction, which means that the cavity structure extends along the first direction. In this way, the airflow flows roughly along the first direction, which helps to reduce the flow resistance of the airflow and allows the gas to flow smoothly.

[0100] Please continue reading. Figure 5 With a plane perpendicular to the first direction as the projection plane, at least part of the projections of the first region 211 and the third region 221 overlap, and both the first region 211 and the third region 221 extend along the first direction. In this way, the airflow flows approximately along the first direction in both the first part 21 and the second part 22, which can further reduce the flow resistance of the airflow.

[0101] In some embodiments, the third region 221 is a hollow structure, and at least a portion of the heating element is housed within the third region 221. This simplifies the manufacturing process, allowing the heating element to be placed within the third region 221 before assembling the front plug section 2 to the matrix section 1, compared to installing the heating element separately into the matrix section 1. Furthermore, since the matrix section 1 is prone to shrinkage and deformation during heating, the hollow third region 221 provides ample installation space for the heating element, preventing the shrinking matrix section 1 from locking the heating element and making separation between the heating element and the matrix section 1 difficult.

[0102] In some embodiments, the front plug section 2 includes one or more combinations of titanium alloy fibers, tungsten copper gradient composite materials, silicon carbide whiskers, zirconia toughened alumina ceramics, short-cut carbon fibers / polyether ether ketones, and graphene-reinforced magnesium-based composite materials. This can enhance the mechanical strength of the second part 22 and prevent the second part 22 from shrinking after the matrix section 1 is heated, which would cause the second part 22 to seize the heating element, making it difficult to separate the heating element from the third region 221.

[0103] In one embodiment, both the first region 211 and the third region 221 have a cavity structure. This facilitates the installation of the heating element into the third region 221 via the first region 211, and also facilitates the removal of the heating element from the third region 221, making the process convenient and quick.

[0104] In one embodiment, the cross-sectional shapes of the first region 211, the third region 221, and the heating element are similar, so that the front plug section 2 that matches the shape of the heating element can be produced according to requirements, which facilitates the loading and unloading of the heating element.

[0105] For example, the minimum cross-sectional area in the first region 211 and the third region 221 is greater than the maximum cross-sectional area of ​​the heating element. As a result, there will be virtually no jamming problem during the loading and unloading of the heating element, further improving the convenience of loading and unloading the heating element.

[0106] In some embodiments, the ratio of the suction resistance of the third region 221 to that of the fourth region 222 is 0 to 0.75. It should be understood that when the ratio of the suction resistance of the third region 221 to that of the fourth region 222 is 0, the suction resistance of the third region 221 is 0, that is, the third region 221 is a cavity structure.

[0107] The ratio of the suction resistance of the third region 221 to that of the fourth region 222 is within the aforementioned range, which gives the third region 221 a stronger airflow traction capability, which is conducive to smooth airflow.

[0108] For example, the ratio of the pull resistance of the third region 221 to the pull resistance of the fourth region 222 can be any value or a range of any two values ​​from 0, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, and 0.75. Preferably, it is between 0 and 0.6.

[0109] In some embodiments, please refer to Figure 6 and Figure 7 The second part 22 has pores 22a, which are connected to the third region 221 and penetrate the outer surface of the second part 22.

[0110] Please continue reading. Figure 6 and Figure 7Ventilation 22a penetrates the fourth region 222. This facilitates the flow of air in the third region 221 into the matrix section 1 via ventilation 22a.

[0111] In one embodiment, please refer to Figure 6 and Figure 7 There can be multiple pores 22a, and multiple pores 22a are spaced apart on the peripheral sidewall of the second part 22, so as to increase the air intake of the matrix section 1.

[0112] The arrangement of pores 22a is not limited. For example, pores 22a can be arranged in an ordered manner or in a disordered manner. An ordered arrangement means that multiple pores 22a are arranged according to a set rule or order, while a disordered arrangement means that multiple pores 22a are randomly distributed without a set rule.

[0113] In some embodiments, please refer to Figure 1 The matrix section 1 has an air inlet channel 1a, and the second part 22 extends into the air inlet channel 1a. An air vent 22a connects the third region 221 and the air inlet channel 1a. In this way, on the one hand, the cooperation between the second part 22 and the air inlet channel 1a facilitates the assembly of the front plug section 2 and the matrix section 1, with the air inlet channel 1a serving a positioning function and reducing assembly difficulty. On the other hand, the airflow in the third region 221 can directly flow into the air inlet channel 1a, thereby fully mixing with the aerosol generated by the matrix section 1 and improving aerosol extraction efficiency.

[0114] It should be noted that when the matrix segment 1 includes at least one of sheet matrix, filament matrix, granular matrix and paste matrix, the matrix segment 1 will not form the intake air passage 1a.

[0115] In one embodiment, please refer to Figure 1 Both the second part 22 and the air intake duct 1a extend along the first direction, which makes it easier to assemble the second part 22 into the air intake duct 1a and reduces the difficulty of production.

[0116] In one embodiment, at least a portion of the circumferential surface of the second portion 22 surrounding the first direction abuts against the cavity wall surface of the intake passage 1a. The abutting fit between the second portion 22 and the intake passage 1a means that the front plug section 2 and the matrix section 1 achieve precise positioning and fit through mutual contact (abutment) during assembly. The circumferential surface of the second portion 22 abuts against the wall surface of the intake passage 1a, which improves the connection stability between the front plug section 2 and the matrix section 1.

[0117] In some embodiments, please refer to Figure 1The first region 211 is connected to the air intake duct 1a, and the ratio of the maximum cross-sectional area of ​​the first region 211 to the maximum cross-sectional area of ​​the air intake duct 1a is 0.3 to 5. That is to say, part of the airflow can flow directly into the air intake duct 1a through the first region 211, thus further increasing the air intake volume and thereby improving the aerosol extraction efficiency.

[0118] The ratio of the maximum cross-sectional area of ​​the first region 211 to the maximum cross-sectional area of ​​the intake duct 1a is within the range of 0.3 to 5, which allows for the adjustment of the airflow velocity within the first region 211 and the airflow channel to suit different application scenarios. For example, the ratio of the maximum cross-sectional area of ​​the first region 211 to the maximum cross-sectional area of ​​the intake duct 1a can be any value from 0.3, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, or 5, or a value within a range of any two values.

[0119] In some embodiments, please refer to Figure 1 The air intake duct 1a passes through at least one end face of the matrix segment 1 along the first direction. For example, the air intake duct 1a passes through the end face of the distal lip of the matrix segment 1, so that the airflow in the first region 211 can flow directly into the air intake duct, and the second part 22 extends into the air intake duct 1a. Alternatively, the air intake duct 1a passes through both end faces of the matrix segment 1 along the first direction, so that the airflow can flow more smoothly through the air intake duct 1a, the aerosol can be delivered in an orderly manner, the aerosol flow resistance is lower, the controllability is better, effectively improving the aerosol extraction efficiency and enhancing the user's suction experience.

[0120] In some embodiments, please refer to Figure 1 , Figure 8 and Figure 9 The first part 21 has an airflow channel 21a, and the matrix section 1 has an airway 1b. At least one airflow channel 21a is connected to the airway 1b. In this way, part of the airflow can flow into the airway 1a through the first region 211, and another part of the airflow can flow into the airway 1b through the airflow channel 21a, thereby increasing the air intake volume and air intake efficiency, and further improving the aerosol extraction efficiency.

[0121] For example, continuing to refer to the figure, there are multiple airflow channels 21a and multiple airflow channels 1b, with each multiple airflow channel 21a and multiple airflow channels 1b corresponding one-to-one.

[0122] In some embodiments, the ratio of the cross-sectional area of ​​the first region 211 to the minimum cross-sectional area of ​​the first portion 21 is 0.05 to 0.95.

[0123] The ratio of the cross-sectional area of ​​the first region 211 to the minimum cross-sectional area of ​​the first part 21 is within the above range, which can ensure the structural strength of the first part 21 and prevent the first region 211 from becoming blocked, thus facilitating smooth airflow.

[0124] For example, the ratio of the cross-sectional area of ​​the first region 211 to the minimum cross-sectional area of ​​the first portion 21 can be any value or a range of any two values ​​from 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, or 0.95. Preferably, it is between 0.2 and 0.8.

[0125] In one embodiment, the first region 211 has a uniform cross-sectional structure, meaning that the cross-sectional areas of the first region 211 in the first direction are equal, which facilitates manufacturing. For example, the first region 211 may be cylindrical or rectangular, etc.

[0126] In another embodiment, the first region 211 may also be a structure with unequal cross-sections, that is, the first region 211 has at least one cross-sectional area in the first direction that is not equal to the cross-sectional areas of the others. For example, the first region 211 is frustum-shaped or conical, etc.

[0127] It should be noted that when the first region 211 has an unequal cross-sectional structure, the ratio of the maximum cross-sectional area of ​​the first region 211 to the minimum cross-sectional area of ​​the first part 21 is 0.05 to 0.95.

[0128] In some embodiments, the ratio of the cross-sectional area of ​​the third region 221 to the minimum cross-sectional area of ​​the second portion 22 is 0.05 to 0.95.

[0129] The ratio of the cross-sectional area of ​​the third region 221 to the minimum cross-sectional area of ​​the second part 22 is within the above range, which can ensure the structural strength of the second part 22 and prevent the third region 221 from becoming blocked, thus facilitating smooth airflow.

[0130] For example, the ratio of the cross-sectional area of ​​the third region 221 to the minimum cross-sectional area of ​​the second portion 22 can be any value or a range of any two values ​​from 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, or 0.95. Preferably, it is between 0.2 and 0.8.

[0131] In one embodiment, the third region 221 has a uniform cross-sectional structure, meaning that the cross-sectional areas of the third region 221 in the first direction are equal, which facilitates manufacturing. For example, the third region 221 may be cylindrical or rectangular, etc.

[0132] In another embodiment, the third region 221 may also be a structure with unequal cross-sections, that is, the third region 221 has at least one cross-sectional area in the first direction that is not equal to the other cross-sectional areas. For example, the third region 221 is frustum-shaped or conical, etc.

[0133] It should be noted that when the third region 221 has an unequal cross-sectional structure, the ratio of the maximum cross-sectional area of ​​the third region 221 to the minimum cross-sectional area of ​​the first part 21 is 0.05 to 0.95.

[0134] In some embodiments, the suction resistance of the second portion 22 increases from the direction away from the matrix segment 1 to the direction closer to the matrix segment 1. That is, the cross-sectional suction resistance of the second portion 22 gradually increases from the distal lip end to the proximal lip end. This ensures that the amount of air flowing into the matrix segment 1 through the second portion 22 is moderate, preventing excessive air intake from affecting the temperature of the matrix segment 1 and thus affecting the aerosol generation efficiency.

[0135] The cross-sectional suction resistance refers to the suction resistance of each cross section of the second part 22 along the first direction.

[0136] In some embodiments, please refer to Figure 9 and Figure 10 A protrusion 213 is formed on the side of the first part 21 facing the matrix section 1, and the protrusion 213 is accommodated within the air passage 1b of the matrix section 1. In this way, the air passage 1b plays a positioning role, and the assembly of the foreplug section 2 and the matrix section 1 is facilitated by the cooperation between the protrusion 213 and the air passage 1b. In addition, it can also improve the connection stability between the foreplug section 2 and the matrix section 1.

[0137] In one embodiment, the circumferential surface of the protrusion 213 along the first direction abuts against the wall of the airway 1b. This improves the connection stability between the front plug section 2 and the matrix section 1.

[0138] The specific shape of the rectangle of the protrusion 213 is not limited. For example, the protrusion 213 can be triangular, quadrilateral, semi-circular, gear-shaped, black hole-shaped, or irregular in shape, etc.

[0139] In one embodiment, the length of the protrusion 213 along the first direction is from 0.2 mm to 4 mm. Having the length of the protrusion 213 within this range balances connection strength and manufacturing cost. Exemplarily, the length of the protrusion 213 along the first direction can be any value or a range of any two values ​​selected from 0.2 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm. Preferably, it is from 0.3 mm to 1 mm.

[0140] In one embodiment, please refer to Figure 9 and Figure 10 The number of protrusions 213 is multiple, and the matrix segment 1 forms multiple air passages 1b. The multiple protrusions 213 are spaced apart along the first direction, and each protrusion 213 is accommodated in its corresponding air passage 1b. In this way, the connection stability between the forepump segment 2 and the matrix segment 1 can be further improved.

[0141] In some embodiments, please refer to Figure 8 The second part 22 has a boss 223 formed on its peripheral sidewall, which abuts against the wall of the intake passage 1a of the matrix section 1. Thus, during the assembly of the front plug section 2 and the matrix section 1, the boss 223 abuts against the wall of the intake passage 1a, and the interaction between the protrusion 213 and the wall of the intake passage 1a can improve the connection stability of the front plug section 2 and the matrix section 1.

[0142] In one embodiment, please refer to Figure 8 The number of protrusions 223 is multiple, and the multiple protrusions 223 are arranged at intervals around the peripheral sidewall of the second part 22 in the first direction. In this way, the connection stability between the front plug section 2 and the matrix section 1 can be further improved.

[0143] In some embodiments, the maximum circumference of the first portion 21 around the first direction is 12 mm to 62 mm. The maximum circumference refers to the circumference corresponding to the largest cross-section of the first portion 21 in the first direction.

[0144] The maximum circumference of the first portion 21 around the first direction is within the aforementioned range, facilitating processing and application. The maximum circumference of the first portion 21 around the first direction can be any value or a range between any two values ​​selected from 12mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, or 62mm. Preferably, it is between 14mm and 58mm, and more preferably, it is between 14mm and 32mm.

[0145] In some embodiments, the second portion 22 has a maximum circumference of 1.5 mm to 61 mm around the first direction.

[0146] The maximum circumference of the second portion 22 around the first direction is within the aforementioned range, facilitating processing and application. The maximum circumference of the second portion 22 around the first direction can be any value or a range consisting of any two values ​​from 1.5mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, or 61mm. Preferably, it is between 1.5mm and 58mm, and more preferably, it is between 1.5mm and 32mm.

[0147] It is understandable that, since the cross-sectional area of ​​the second part 22 is smaller than that of the first part 21, the maximum circumference of the second part 22 around the first direction should be smaller than the maximum circumference of the first part 21 around the first direction for the cross-section corresponding to the connection between the first part 21 and the second part 22.

[0148] In some embodiments, the length of the first portion 21 along the first direction is 3 mm to 45 mm.

[0149] The length of the first portion 21 along the first direction is within the aforementioned range, facilitating production. For example, the length of the first portion 21 along the first direction can be any value or a range consisting of any two of the following: 3mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, or 45mm. Preferably, it is between 5mm and 38mm, and more preferably, between 6mm and 35mm.

[0150] In some embodiments, the length of the second portion 22 along the first direction is 3 mm to 48 mm.

[0151] The length of the second portion 22 along the first direction is within the aforementioned range, facilitating production. For example, the length of the second portion 22 along the first direction can be any value or a range consisting of any two of the following: 3mm, 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, or 48mm. Preferably, it is 6mm to 32mm, and more preferably, it is 6mm to 18mm.

[0152] It should be noted that the length relationship between the first part 21 and the second part 22 along the first direction is not limited. It can be that the length of the first part 21 along the first direction is greater than the length of the second part 22 along the first direction; it can also be that the length of the first part 21 along the first direction is less than the length of the second part 22 along the first direction; or it can be that the length of the first part 21 along the first direction is equal to the length of the second part 22 along the first direction.

[0153] In some embodiments, please refer to Figures 1 to 10The first part 21 can be any one of columnar, frustum, or cone shape.

[0154] Using a plane parallel to the first direction as the projection plane, a cylindrical shape means that the projected shape of the first part 21 is rectangular, that is, the areas of multiple cross-sections of the first part 21 along the first direction are all equal; a frustum shape means that the projected shape of the first part 21 is trapezoidal, that is, the areas of multiple cross-sections of the first part 21 along the first direction gradually decrease or gradually increase from the distal lip to the proximal lip; a cone shape means that the projected shape of the first part 21 is triangular. In this way, the first part 21 can adopt different shapes according to requirements to suit different application scenarios.

[0155] In one embodiment, the first part 21 is columnar, preferably cylindrical, to facilitate processing and production.

[0156] In some embodiments, please refer to Figures 1 to 10 The second part 22 can be any one of the following shapes: columnar, frustum, or cone. In this way, the second part 22 can adopt different shapes according to requirements to suit different application scenarios.

[0157] In one embodiment, the second part 22 is frustum-shaped, preferably frustum-shaped, which facilitates functional expansion and improves the applicability of the second part 22.

[0158] In some embodiments, the thermal conductivity of the second portion 22 is not less than 1.4 mm. 2 / s. In this way, the second part 22 has good thermal conductivity. After the heating element in the second part 22 releases heat, the second part 22 can quickly transfer the heat to the matrix section 1, thereby improving the atomization efficiency.

[0159] For example, the thermal conductivity of the second part 22 can be 1.4 mm. 2 / s, 1.6mm 2 / s, 1.8mm 2 / s or 2mm 2 / s etc.

[0160] In some embodiments, the second part 22 is capable of generating heat. That is, the second part 22 can be made of a material with heating properties. When stimulated by an energy field (such as electromagnetic, microwave, etc.), the second part 22 can generate heat to heat the matrix section 1 to generate aerosol, thereby further improving the atomization efficiency.

[0161] In some embodiments, both the first portion 21 and the second portion 22 contain a flavoring substance. A flavoring substance is a substance that can add aroma-producing components to the aerosol. Thus, both the first portion 21 and the second portion 22 have a flavoring function, thereby enhancing the aroma of the aerosol and improving the user experience.

[0162] In one embodiment, the flavoring substances in both the first part 21 and the second part 22 are the same, which can further enhance the aroma of the aerosol and improve the user experience.

[0163] In another embodiment, the flavoring substances in the first part 21 and the second part 22 are different, so that the user can inhale aerosols containing different fragrances at the same time, thus improving the user experience.

[0164] In some embodiments, the flavoring agent includes any one or more combinations of menthol microcapsules, roasted sweet aroma precursors, vanillin-β-cyclodextrin inclusion complexes, ethyl maltol / silica nanocore-shells, activated carbon fiber felt, metal-organic frameworks for aroma storage, paraffin-based complex fragrances, and shape memory polymers.

[0165] For example, the methods of adding flavoring substances include, but are not limited to, ion spraying, chemical vapor infiltration, direct addition to the formulation, and chemical reaction modification.

[0166] In some embodiments, the first part 21 includes any one or more combinations of fibrous structures (cellulose acetate, paper fiber, etc.), polymer materials (polylactic acid, polypropylene, and polyetheretherketone, etc.), ceramic structures (porous ceramics, ceramic fibers), metal structures (porous metals, metal foils), biological structures, and composite structures with biomaterials as the main matrix (algae-based materials, herb-based materials).

[0167] In some embodiments, the second part 22 includes any one or more combinations of fibrous structures (cellulose acetate, paper fiber, etc.), polymer materials (polylactic acid, polypropylene, and polyetheretherketone, etc.), ceramic structures (porous ceramics, ceramic fibers), metal structures (porous metals, metal foils), biological structures, and composite structures with biomaterials as the main matrix (algae-based materials, herb-based materials).

[0168] It should be noted that the materials of the first part 21 and the second part 22 can be the same or different.

[0169] In some embodiments, the foreplug section 2 includes any one or more combinations of aluminum nitride, silicon carbide fibers, yttrium-stabilized zirconium oxide, alumina whiskers, porous graphene aerogel, and boron carbide coating, thereby improving the heat resistance of the foreplug section 2.

[0170] In other embodiments, the thermal stability of the forepump section 2 is enhanced by interface optimization processes such as molybdenum-titanium gradient transition layer and silane coupling agent modification, thereby preventing heat dissipation and affecting atomization efficiency.

[0171] In some embodiments, the first portion 21 comprises any one or more combinations of silica aerogel, vacuum insulation board, alumina fiber needled felt, mullite-cordierite multiphase ceramic, fatty acid / expanded graphite composite, and metal-organic framework encapsulated salt. This improves the thermal insulation performance of the first portion 21 and reduces heat loss.

[0172] In other embodiments, the first part 21 can also improve its thermal insulation performance by setting gradient structures such as metal-microporous ceramic gradient layers and carbon fiber / aerogel sandwich structures.

[0173] In some embodiments, the second portion 22 further includes any one or more combinations of silver nanowires, copper-diamond composite particles, hexagonal boron nitride nanosheets, graphene / aluminum layered composite materials, silicon carbide whiskers, and aluminum nitride nanoparticles. This improves the thermal conductivity of the second portion 22, thereby enhancing atomization efficiency.

[0174] In other embodiments, the thermal conductivity of the second part 22 is further improved by interface optimization processes such as constructing a titanium-graphene transition layer and adding a gallium-based liquid metal wetting agent.

[0175] In some embodiments, the heat resistance temperature of the second portion 22 is not less than that of the first portion 21. The heat resistance temperature refers to the highest temperature that both the first portion 21 and the second portion 22 can withstand without a significant decrease in mechanical strength. Thus, since the second portion 22 extends into the substrate segment 1, and its heat resistance temperature is higher than that of the first portion 21, it ensures that the second portion 22 maintains good mechanical strength during the heating process of the substrate segment 1, preventing the heating element from seizing up.

[0176] In one embodiment, the heat resistance temperature of the first part 21 is not lower than 250°C. Exemplarily, the heat resistance temperature of the first part 21 can be 250°C, 260°C, 270°C, 280°C, 290°C, or 300°C, etc.

[0177] In one embodiment, the heat resistance temperature of the second part 22 is not lower than 300°C. Exemplarily, the heat resistance temperature of the second part 22 can be 300°C, 310°C, 320°C, 330°C, 340°C, or 350°C, etc.

[0178] Based on the foregoing description, the front plug section 2 of the aerosol generating article 10 provided in this application will be further described below with reference to specific embodiments.

[0179] Example 1: The first part 21 is cylindrical, with a length of 10 mm and a diameter of 8 mm, i.e., a maximum circumference of 25.12 mm. The first part 21 is made of porous ceramic with a thermal conductivity of 2.5 W / (m·K) and a heat resistance temperature of not less than 500℃. The first region 211 has a cavity structure with a uniform cross-section, and the ratio of the cross-sectional area of ​​the first region 211 to the cross-sectional area of ​​the first part 21 is 0.3. The sidewall of the first part 21 has at least one micropore (pore diameter of 50 μm), and the absorption resistance of the first part 21 is 150 Pa.

[0180] The second part 22 is frustum-shaped, with a length of 8 mm, a diameter of 6 mm at the distal lip, and a diameter of 3 mm at the proximal lip, resulting in a maximum circumference of 18.84 mm. This meets the design requirement that the cross-sectional area of ​​the second part 22 is smaller than that of the first part 21. The second part 22 is made of a high thermal conductivity ceramic composite material, including aluminum nitride and graphite, with a thermal conductivity of 2.5 W / (m·K) and a thermal diffusivity of not less than 5 mm. 2 / s, where thermal diffusivity refers to the ability of the second part 22 to achieve a uniform temperature across all locations during heating or cooling. The suction resistance of the second part 22 increases from the distal lip end to the proximal lip end; specifically, the suction resistance at the distal lip end of the second part 22 is 100 Pa, and the suction resistance at the proximal lip end of the second part 22 is 250 Pa.

[0181] The first part 21 and the second part 22 are made into porous ceramic structures using 3D printing technology, and after high-temperature sintering, they form the front plug section 2. After sintering, a silver layer is plated on the peripheral sidewall of the second part 22 to enhance its thermal conductivity.

[0182] Example 2: The first part 21 is a square column with a length of 12 mm and a side length of 7 mm, i.e., a maximum perimeter of 28 mm. The first part 21 is made of polyetheretherketone (PEEK) with a heat resistance temperature of 300℃. The first region 211 has a cavity structure with a uniform cross-section. The ratio of the cross-sectional area of ​​the first region 211 to the cross-sectional area of ​​the first part 21 is 0.4. A stainless steel filter screen is installed inside the first region 211 to prevent clogging. The suction resistance of the first part 21 is 200 Pa.

[0183] The second part 22 is conical in shape, with a length of 6 mm and a diameter of 5 mm at the distal lip, resulting in a maximum circumference of 15.7 mm. This meets the design requirement that the cross-sectional area of ​​the second part 22 is smaller than that of the first part 21. The second part 22 is made of ferrite composite material, meaning it can generate heat under electromagnetic field excitation, with a thermal conductivity of 1.6 W / (m·K). The second part 22 has multiple pores 22a, each with a diameter of 1 mm and a spacing of 2 mm, arranged in an array. The suction resistance at the distal lip of the second part 22 is 150 Pa, and the suction resistance at the proximal lip is 400 Pa.

[0184] The first part 21 is injection molded, and the second part 22 is sintered using powder metallurgy. The first part 21 and the second part 22 are threaded together, that is, part of the second part 22 is housed within the first region 211, and the connection is sealed with high-temperature resistant adhesive (silicone).

[0185] Example 3: The first part 21 is cylindrical, with a length of 8 mm and a diameter of 9 mm, i.e., a maximum circumference of 28.26 mm. The first part 21 is made of alginate and paper fiber composite material, with a heat resistance temperature of 250℃. The first region 211 is a cavity structure with a uniform cross-section, and the ratio of the cross-sectional area of ​​the first region 211 to the cross-sectional area of ​​the first part 21 is 0.2. The absorption resistance of the first part 21 is 175 Pa. In this example, the first part 21 and the second part 22 are asymmetrically connected, that is, the centerline of the first part 21 and the centerline of the second part 22 are misaligned.

[0186] The second part 22 is frustum-shaped, 5 mm long, with a diameter of 4 mm at the distal end and 2 mm at the proximal end, resulting in a maximum circumference of 12.56 mm. This meets the design requirement that the cross-sectional area of ​​the second part 22 is smaller than that of the first part 21. The second part 22 is made of gradient density PLA foam material, wherein the porosity of the second part 22 decreases from 60% to 30% from the distal end to the proximal end, and the absorption resistance increases from 75 Pa to 250 Pa. The second part 22 also includes flavoring substances extracted from natural plants.

[0187] The front plug section 2 is a one-piece structure, with the first part 21 and the second part 22 formed by foam injection molding.

[0188] Example 4: Please refer to Figure 8 The first part 21 is cylindrical, the first region 211 is cylindrical, and the ratio of the suction resistance of the first region 211 to that of the second region 212 is 0.5. The matrix section 1 has an air intake passage 1a, and the first region 211 is connected to the air intake passage 1a. The ratio of the cross-sectional area of ​​the first region 211 to that of the air intake passage 1a is 0.5. The second part 22 is frustum-shaped, the third region 221 is frustum-shaped, and the ratio of the suction resistance of the third region 221 to that of the fourth region 222 is 0.4.

[0189] The first part 21 is made of polyetheretherketone and its mechanical strength is enhanced by silicon carbide fibers. The second part 22 includes porous graphene aerogel to improve thermal conductivity. Thus, by setting up the air inlet channel 1a, airflow can be rapidly introduced into the matrix section 1, improving aerosol extraction efficiency.

[0190] Example 5: Please refer to Figure 9The first part 21 has a protrusion 213, which is approximately L-shaped and has a length of 0.5 mm along the first direction. The matrix section 1 has an air passage 1b, which is approximately gear-shaped. This allows the L-shaped protrusion 213 to hook onto the wall of the gear-shaped air passage 1b, further enhancing the connection stability between the front plug section 2 and the matrix section 1. The second part 22 is frustum-shaped, and the third region 221 has a cross-sectional shape similar to that of the heating element. The ratio of the minimum cross-sectional area of ​​the third region 221 to the maximum cross-sectional area of ​​the heating element is 1.2:1.

[0191] The first part 21 includes chopped carbon fibers to enhance mechanical strength, and the second part 22 is made of zirconia-toughened alumina ceramic. In this embodiment, the L-shaped protrusion 213 and the gear-shaped air passage 1b work together to prevent misalignment of the front plug section 2 and the matrix section 1 during transportation or heating, and to ensure that the heating element is accurately positioned within the third region 221.

[0192] Example 6: Both the first part 21 and the second part 22 are frustum-shaped, and both the first region 211 and the third region 221 are cylindrical. The first part 21 is filled with silica aerogel to improve thermal insulation performance. The second part 22 is provided with a titanium-graphene gradient transition layer, and the outer surface of the second part 22 is provided with a boron carbide coating to improve the thermal stability and heat resistance of the second part 22.

[0193] Furthermore, the first part 21 incorporates a fatty acid / expanded graphite composite to achieve phase change energy storage. The second part 22 also includes silver nanowires to enhance thermal conductivity. In this embodiment, improvements to the first part 21 and the second part 22 can shorten the heating time by 20% and improve atomization efficiency.

[0194] Furthermore, at least one of the first part 21 and the second part 22 includes a flavoring substance, such as menthol microcapsules, so that the user's experience is greatly improved when inhaling the aerosol containing the refreshing flavor of menthol.

[0195] In some embodiments, please refer to Figure 11 The aerosol generating article 10 includes at least one functional segment 3, and the matrix segment 1 and the functional segment 3 are arranged along a first direction.

[0196] As an example, functional segment 3 may provide at least one of the following: filtration function, adsorption function, aroma enhancement function, dilution function, cooling function, and resistance adjustment function.

[0197] Filtration function refers to the function of filtering out at least some of the particulate matter in aerosols.

[0198] Adsorption function refers to the ability to adsorb at least some impurities in aerosols. It can be understood that these impurities are substances that remove the active ingredients from the aerosol; the active ingredients are those that need to be provided to the user.

[0199] The aroma-enhancing function refers to the function of adding aroma-producing components to aerosols.

[0200] The dilution function refers to the function of reducing the concentration of active ingredients in aerosols.

[0201] Cooling function refers to the function of reducing the temperature of aerosols.

[0202] The suction resistance adjustment function refers to the function of reducing or increasing suction resistance. In this way, the flow rate and distribution of aerosols can be controlled, and the suction resistance and aerosol uniformity can be optimized.

[0203] In one embodiment, please refer to Figure 11 Functional segment 3 includes a support segment 31, which can withstand the temperature of the aerosol from matrix segment 11 and maintain its shape. The support segment 31 serves a supporting function.

[0204] In one embodiment, please refer to Figure 11 Functional section 3 includes a cooling section 32, which is used to reduce the temperature of the aerosol. This makes the aerosol suitable for users to inhale, avoiding the problem of "scalding the mouth".

[0205] In one embodiment, please refer to Figure 1 and Figure 11 Functional segment 3 includes a filter segment 33, which is used to filter aerosols. For example, the filter segment 33 can block substances of a target particle size and can also adjust the suction resistance. For instance, the filter segment 33 can filter large-diameter particles, similar to powdery substances. Aerosols filtered through the filter segment 33 have a higher particle size uniformity and a smoother taste.

[0206] In one embodiment, please refer to Figure 11 Functional segment 3 includes front plug segment 2.

[0207] In one embodiment, please refer to Figure 11 The fore plug section 2, the matrix section 1, the support section 31, the cooling section 32, and the filter section 33 are connected sequentially along the first direction.

[0208] In one embodiment, please refer to Figure 1The aerosol generating article 10 includes a coating layer 4, which covers the outer periphery of the matrix section 1 and the outer periphery of the functional section 3. For example, the functional section 3 includes a pre-plug section 2, a support section 31, a cooling section 32, and a filter section 33. The coating layer 4 covers the outer periphery of both the matrix section 1 and the functional section 3. That is, the outer peripheries of the pre-plug section 2, matrix section 1, support section 31, cooling section 32, and filter section 33 are all covered by the coating layer 4. The coating layer 4 can be a single layer, or two or more layers can be designed according to the design requirements and manufacturing process of the aerosol generating article 10. For example, during manufacturing, the support section 31, cooling section 32, and filter section 33 can be first wrapped with a single coating layer 4, and then another layer of coating layer 4 can be used to wrap the matrix section 1 and the pre-plug section 2. Of course, other combinations are also possible.

[0209] In the description of this specification, the references to "an embodiment," "another embodiment," "some embodiments," "other embodiments," and "exemplary" 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 specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0210] The various embodiments / implementations provided in this application can be combined with each other without creating contradictions. The above descriptions are merely preferred embodiments of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An aerosol-generating product, characterized in that, include: The matrix segment is used to generate aerosols; The front plug section includes a first portion and a second portion, the first portion being disposed at one end of the matrix section along a first direction, the second portion being connected to the end of the first portion near the matrix section, and the second portion extending into the matrix section; The cross-section perpendicular to the first direction is used as the cross-section, and the cross-sectional area of ​​the second part is smaller than that of the first part.

2. The aerosol-generating product according to claim 1, characterized in that, Both the first and second parts have porous structures.

3. The aerosol-generating product according to claim 1, characterized in that, The first part has a first region and a second region, the first region is connected to the second part, the suction resistance of the first region is less than the suction resistance of the second region, and the maximum suction resistance of the second part is less than the suction resistance of the first region.

4. The aerosol-generating product according to claim 3, characterized in that, One end of the first region along the first direction is connected to the second part, and the other end of the first region along the first direction is flush with the surface of the second region away from the matrix segment.

5. The aerosol-generating product according to claim 3, characterized in that, The first region is a cavity structure.

6. The aerosol-generating product according to claim 3, characterized in that, The ratio of the suction resistance of the first region to that of the second region is 0 to 0.

75.

7. The aerosol-generating product according to claim 1, characterized in that, The first part has a first region and a second region, the suction resistance of the first region is less than that of the second region, the second part has a third region and a fourth region, the suction resistance of the third region is less than that of the fourth region, and the first region is connected to the third region.

8. The aerosol-generating product according to claim 7, characterized in that, The ratio of the suction resistance of the third region to that of the fourth region is 0 to 0.

75.

9. The aerosol-generating product according to claim 7, characterized in that, The second part has pores that connect to the third region and penetrate the outer surface of the second part.

10. The aerosol-generating article according to claim 9, characterized in that, The matrix section forms an air intake channel, the second part extends into the air intake channel, and the air hole connects the third region and the air intake channel.

11. The aerosol-generating article according to claim 10, characterized in that, The first region is connected to the air intake duct, and the ratio of the maximum cross-sectional area of ​​the first region to the maximum cross-sectional area of ​​the air intake duct is 0.3 to 5.

12. The aerosol-generating product according to claim 7, characterized in that, The third region is a cavity structure.

13. The aerosol-generating article according to claim 7, characterized in that, The ratio of the cross-sectional area of ​​the first region to the minimum cross-sectional area of ​​the first part is 0.05 to 0.95; and / or, The ratio of the cross-sectional area of ​​the third region to the minimum cross-sectional area of ​​the second part is 0.05 to 0.

95.

14. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The suction resistance of the second part increases from the direction away from the matrix segment to the direction closer to the matrix segment.

15. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The first portion has a protrusion formed on the side facing the matrix segment, the protrusion being accommodated within the airway of the matrix segment; and / or, The second part has a protrusion formed on its peripheral sidewall, and the protrusion abuts against the wall of the air intake passage of the matrix section.

16. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The maximum circumference of the first portion around the first direction is 12mm to 62mm; and / or, The maximum circumference of the second part around the first direction is 1.5 mm to 61 mm.

17. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The length of the first portion along the first direction is 3 mm to 45 mm; and / or, The length of the second part along the first direction is 3mm to 48mm.

18. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The first portion is any one of columnar, frustum-shaped, and conical; and / or, The second part can be any one of columnar, frustum-shaped, or conical.

19. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The thermal conductivity of the second part is not less than 1.4 mm. 2 / s.

20. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The second part is capable of generating heat; and / or, Both the first and second parts contain flavoring substances.

21. An aerosol generating device, characterized in that, It includes a heating element and an aerosol generating article according to any one of claims 1 to 20, wherein the heating element is used to heat the aerosol generating article to generate an aerosol.

Images