Aerosol generating product and aerosol generating system

Abstract

Disclosed in the embodiments of the present application are an aerosol generating product and an aerosol generating system. The aerosol generating product is provided with a distal lip end and a proximal lip end; the aerosol generating product comprises a medium section, a front plug section and a wrapping layer, the medium section being used for generating an aerosol, the front plug section being arranged at one end of the medium section and located at the distal lip end of the aerosol generating product, the wrapping layer surrounding the outer circumference of the front plug section and the medium section and defining an outer circumferential air channel with the outer circumference of the front plug section, and the outer circumferential air channel being used for allowing external air to flow towards the medium section. In the aerosol generating product provided by the embodiments of the present application, even if the front plug section undergoes melting, shrinking and other phenomena due to heating, the external air can still flow towards the medium section via the outer circumferential air channel. Thus, the impact of an increased inhalation resistance on inhalation of aerosol due to heating of the front plug section can be reduced, thereby improving the use experience of users.

Description

Aerosol generating product and aerosol generating system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims the priority of Chinese patent application with application number 202410111880.3 and application date January 25, 2024. The entire content of the Chinese patent application is hereby incorporated into this disclosure by reference. Technical Field

[0003] The present application relates to the technical field of smoking products, and in particular to an aerosol generating product and an aerosol generating system. Background Art

[0004] This section is intended to provide a background or context to the embodiments presented in this application. No statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0005] Smoking articles include aerosol-generating products that form aerosols through ignition and those that form aerosols through heat-without-combustion. A typical heat-without-combustion aerosol-generating product includes a medium segment that volatilizes upon heating to generate an aerosol, and a front plug segment positioned upstream of the medium segment. The medium segment is heated by an external heat source to a temperature sufficient to release the desired ingredients and flavor. The medium segment does not burn, but instead carries an aerosol and releases the aerosol upon high-temperature heating to form an aerosol. The front plug segment typically serves to absorb condensed liquid from the aerosol within the aerosol-generating product, preventing the liquid from escaping the product and contaminating the heating mechanism.

[0006] The draw resistance of aerosol-generating products during inhalation is a key indicator of these products. In related technologies, the front plug segment is prone to melting and condensation when heated, blocking the airway within the segment. This significantly increases the draw resistance during aerosol inhalation, reducing the user experience. Summary of the Invention

[0007] In view of this, the embodiments of the present application hope to provide an aerosol generating product and an aerosol generating system, aiming to reduce the impact of the increased inhalation resistance after the front plug section is heated on the generation of inhaled aerosol, thereby improving the user experience.

[0008] To achieve the above objectives, the present invention provides an aerosol-generating article having a distal lip end and a proximal lip end. The aerosol-generating article includes:

[0009] a medium segment for generating aerosol;

[0010] a front plug segment, disposed at one end of the medium segment and located at the distal lip end of the aerosol generating article;

[0011] The wrapping layer is arranged around the periphery of the front plug segment and the medium segment and defines a peripheral air channel with the periphery of the front plug segment. The peripheral air channel is used for allowing external air flow to flow to the medium segment.

[0012] In one embodiment, the medium segment extends along a first direction, and the front plug segment is arranged at one end of the medium segment along the first direction. On a plane perpendicular to the first direction, the cross-section of the wrapping layer is in the shape of a circular ring, and the cross-section of the front plug segment is in the shape of a non-circular ring.

[0013] In one embodiment, on a plane perpendicular to the first direction, the cross-section of the front plug segment is in the shape of a polygon, a racetrack, a sector or an ellipse.

[0014] In one embodiment, the medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, the side wall of the front plug segment is recessed to form an air groove, the air groove extends along the first direction, and the peripheral air channel is defined between the groove wall of the air groove and the wrapping layer.

[0015] In one embodiment, on a plane perpendicular to the first direction, the cross-section of the air groove is V-shaped, arc-shaped, rectangular, or trapezoidal.

[0016] In one embodiment, on a plane perpendicular to the first direction, the cross-section of the air groove is V-shaped, there are multiple air grooves, and the air grooves are evenly distributed along the circumference of the front plug segment.

[0017] In one embodiment, the air groove extends linearly or spirally along the first direction.

[0018] In one embodiment, the medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, and the ratio of the size of the front plug segment along the first direction to the size of the aerosol generating article along the first direction is in the range of 1 / 12 to 1 / 3.

[0019] In one embodiment, the medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, and the ratio of the size of the front plug segment along the first direction to the size of the aerosol generating article along the first direction is in the range of 1 / 10 to 1 / 4.

[0020] In one embodiment, the ratio of the cross-sectional area of ​​the front plug segment to the cross-sectional area of ​​the medium segment is in the range of 0.4 to 0.95.

[0021] In one embodiment, the ratio of the cross-sectional area of ​​the front plug segment to the cross-sectional area of ​​the medium segment is in the range of 0.65 to 0.91.

[0022] In one embodiment, the front plug section is a gathered molding structure, an extruded molding structure or a cast molding structure.

[0023] In one embodiment, the material of the front plug segment includes at least one of CA, PET, PLA, PC and PA.

[0024] In one embodiment, the aerosol generating product further comprises a basic structure segment, which is arranged at an end of the medium segment away from the front plug segment, and the basic structure segment comprises at least one of a supporting segment, a filtering segment and a cooling segment.

[0025] In one embodiment, the medium segment is an integral structure, and has at least one air hole inside the medium segment, and the air hole passes through at least one end of the medium segment.

[0026] In one embodiment, there are multiple pores, and the multiple pores are distributed in a matrix on the end surface of the medium segment.

[0027] In one embodiment, the medium segment is provided with a heating hole along its axial extension, and the heating hole is used to avoid the heating element of the aerosol generating device. There are multiple air holes, and on the end surface of the medium segment, the multiple air holes are distributed in a ring shape around the heating hole.

[0028] In one embodiment, the heating hole is located at the center of the medium segment, and the hole wall of the heating hole is in contact with or spaced apart from the heating element.

[0029] In one embodiment, the cross-section of the pore is circular, polygonal, star-shaped or arc-shaped.

[0030] In one embodiment, the front plug segment has an internal channel, and the internal channel runs through an end of the front plug segment away from the medium segment and an end of the front plug segment close to the medium segment.

[0031] In one embodiment, the internal passage is configured to avoid a heating element of the aerosol generating device, so that the heating element can pass through the front plug segment and be inserted into the medium segment.

[0032] In one embodiment, the cross section of the internal channel is slit-shaped or hole-shaped.

[0033] Another aspect of an embodiment of the present application provides an aerosol generating system, which includes an aerosol generating device and the aerosol generating article described in any of the above embodiments. The aerosol generating device includes a heating element, which is used to heat the medium segment to generate an aerosol.

[0034] In one embodiment, the front plug segment has an internal channel, which runs through one end of the front plug segment away from the medium segment and one end close to the medium segment. The heating element is arranged in the internal channel, and at least part of the side wall of the internal channel is in contact with the peripheral wall of the heating element.

[0035] In one embodiment, the front plug segment has an internal channel, which runs through one end of the front plug segment away from the medium segment and one end close to the medium segment. The heating element is arranged in the internal channel, and at least part of the side wall of the internal channel is set at a gap with the heating element.

[0036] In one embodiment, the heating element passes through the internal channel and further extends into a heating hole of the medium segment corresponding to the internal channel, and the heating element is in contact with an inner wall of the heating hole or is provided with a gap therebetween.

[0037] In the aerosol generating product of the embodiment of the present application, the front plug segment is arranged at one end of the medium segment and is located at the distal lip end of the aerosol generating product. The wrapping layer is arranged around the periphery of the front plug segment and the medium segment and defines a peripheral airway with the periphery of the front plug segment. The external airflow can flow to the medium segment through the peripheral airway. On the one hand, the front plug section can reduce the probability of the medium section falling from the inside of the wrapping layer. After the aerosol generated by the medium section condenses, it is not easy to flow back into the storage chamber of the aerosol generating device under the action of the front plug section, which effectively reduces the problem of pollution and difficulty in cleaning in the storage chamber of the aerosol generating device. At the same time, it effectively avoids the problem of cross-flavoring when users inhale aerosol generating products with different flavors. On the other hand, since the peripheral airway is located at the periphery of the front plug section, even if the front plug section melts, condenses, etc. after being heated, the peripheral airway located at the periphery of the front plug section will not form a blockage, and may even increase slightly, effectively avoiding the problem of increased suction resistance when the user inhales the aerosol in this state. In this way, the influence of the increased suction resistance of the front plug section after being heated on the inhaled aerosol is reduced, thereby improving the user's experience. In other words, the aerosol generating product of the present application is a product that can prevent the medium section from falling off and has a good inhalation experience.

[0038] In addition, the peripheral airway is formed on the periphery of the front plug segment. After the external airflow flows through the peripheral airway to the medium segment, it can gradually flow from the periphery of the medium segment to the inside of the medium segment. This process can increase the utilization rate of the periphery of the medium segment and improve the suction performance of the aerosol generating product. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a schematic structural diagram of an aerosol generating article according to an embodiment of the present application;

[0040] FIG2 is a schematic cross-sectional view of an aerosol-generating article according to an embodiment of the present application;

[0041] Figure 3 is an enlarged schematic diagram of point B in Figure 2;

[0042] FIG4 is a cross-sectional view of a cross-section of an aerosol-generating article according to an embodiment of the present application, wherein the cutting direction is the AA direction shown in FIG2 ;

[0043] FIG5 is a schematic structural diagram of the front plug section of the first embodiment of the present application;

[0044] FIG6 is a schematic structural diagram of a front plug section according to a second embodiment of the present application;

[0045] FIG7 is a schematic structural diagram of a front plug section according to a third embodiment of the present application;

[0046] FIG8 is a schematic structural diagram of a front plug section according to a fourth embodiment of the present application;

[0047] FIG9 is a schematic structural diagram of a front plug section according to a fifth embodiment of the present application;

[0048] FIG10 is a schematic structural diagram of a front plug section according to a sixth embodiment of the present application;

[0049] FIG11 is a schematic structural diagram of a front plug section according to a seventh embodiment of the present application;

[0050] FIG12 is a schematic structural diagram of the front plug section of the eighth embodiment of the present application;

[0051] FIG13 is a schematic diagram of the distribution of pores on a dielectric segment according to an embodiment of the present application;

[0052] FIG14 is a schematic diagram of the distribution of pores on the dielectric segment of another embodiment of the present application

[0053] FIG15 is a schematic cross-sectional view of an aerosol-generating article according to another embodiment of the present application, wherein the cross-sectional view direction is consistent with the cross-sectional view direction of the aerosol-generating article according to the embodiment shown in FIG2 ;

[0054] FIG. 16 is a schematic diagram illustrating the cooperation between the aerosol generating article and the heating element according to the embodiment shown in FIG. 15 . DETAILED DESCRIPTION

[0055] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0056] In the embodiments of the present application, the "first direction" refers to the direction shown in Figures 1 and 2. It should be understood that these directional terms are merely for the purpose of facilitating the description of the present application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present application. The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] As shown in Figures 1 and 2 , one embodiment of the present application provides an aerosol-generating article. The aerosol-generating article 100 has a distal lip end and a proximal lip end. The aerosol-generating article 100 includes a dielectric segment 10, a front plug segment 20, and a wrapping layer 30. The dielectric segment 10 is configured to generate an aerosol. The front plug segment 20 is disposed at one end of the dielectric segment 10 and is located at the distal lip end of the aerosol-generating article 100. The wrapping layer 30 surrounds the front plug segment 20 and the periphery of the dielectric segment 10, defining a peripheral airway 100a with the periphery of the front plug segment 20. The peripheral airway 100a is configured to allow airflow from the outside to flow toward the dielectric segment 10.

[0058] As shown in Figures 1 to 16 , another embodiment of the present application provides an aerosol-generating system. The aerosol-generating system includes an aerosol-generating device and an aerosol-generating article 100 according to any embodiment of the present application. The aerosol-generating device includes a heater 200 for heating the medium segment 10 to generate an aerosol. The proximal lip end refers to the end of the aerosol-generating article 100 that is closer to the user when the user is using the aerosol-generating article 100, while the distal lip end refers to the end of the aerosol-generating article 100 that is farther away from the user when the user is using the aerosol-generating article 100.

[0059] In the embodiment of the present application, the dielectric segment 10 is generally cylindrical, which may be a cylindrical shape (i.e., a circular cross-section), a prismatic shape (i.e., a polygonal cross-section), an elliptical cylinder (i.e., an elliptical cross-section), etc., without limitation.

[0060] The heating element 200 is used to convert electrical energy into thermal energy. The thermal energy acts on the medium segment 10. After being heated, the medium segment 10 can generate aerosol for users to use.

[0061] There is no limitation on the manner in which the heating element 200 heats the medium segment 10. For example, in some embodiments, in a circumferential heating aerosol generating device, the heating element 200 is disposed around the periphery of the aerosol generating article 100 and heats the aerosol generating article 100.

[0062] In some other embodiments, as shown in FIG. 16 , a central heating type aerosol generating device is provided, in which a heating element 200 is inserted into the interior of the aerosol generating article 100 to heat the aerosol generating article 100 .

[0063] Specifically, the aerosol generating device includes a shell and a power supply assembly arranged in the shell. The shell has a storage chamber. The power output part of the power supply assembly is arranged in the storage chamber or around the side wall of the storage chamber. When the aerosol generating product 100 is inserted into the storage chamber, the power output part transmits power to the heating element 200 in a contact or non-contact manner. The heating element 200 receives energy from the outside and generates heat, thereby heating the medium segment 10 and generating an aerosol.

[0064] The wrapping layer 30 has a certain hardness and can provide a certain degree of protection for the medium segment 10, reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 becoming damp and deteriorating due to contact with air. At the same time, it also reduces the probability of the medium segment 10 coming into contact with other components in the aerosol generating device and causing contamination.

[0065] It should be noted that the media segment 10 and the wrapping layer 30 can be an integrated structure. That is, the media segment 10 and the wrapping layer 30 are different parts of a single integral structure. This, on the one hand, stabilizes the relative position of the media segment 10 and the wrapping layer 30, thereby reducing the probability of separation between the media segment 10 and the wrapping layer 30 due to factors such as temperature fluctuations and vibration during use of the aerosol-generating article 100. On the other hand, the media segment 10 and the wrapping layer 30 can be manufactured simultaneously, thereby reducing the number of manufacturing steps and improving production efficiency.

[0066] For example, the integral structure of the media portion and the wrapping layer 30 is formed by a co-extrusion process.

[0067] Of course, the medium segment 10 and the wrapping layer 30 may also be a separate structure.

[0068] The specific material of the wrapping layer 30 is not limited, such as fiber paper, metal foil, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly (butylene adipate-co-terephthalate, polybutylene adipate / terephthalate)) and other materials or a combination thereof.

[0069] The front plug segment 20 is disposed at one end of the medium segment 10 and is located at the distal lip end of the aerosol generating article 100. During use of the aerosol generating article 100, the front plug segment 20 can effectively reduce the probability of the medium segment 10 falling from the wrapping layer 30.

[0070] In addition, when the medium segment 10 is a porous structure, the front plug segment 20 is equivalent to being located at the distal lip end of the aerosol generating product 100. This effectively prevents the aerosol from condensing and flowing downward and remaining in the storage chamber of the aerosol generating device, causing internal contamination of the storage chamber and making it difficult to clean. In addition, the problem of cross-flavoring may occur when inhaling aerosol generating products 100 of different flavors.

[0071] In the related art, in a centrally heated aerosol generating device, after the heating element heats the medium segment, the medium segment may shrink, thereby causing adhesion between the medium segment and the heating element. During the replacement of the aerosol generating product, the medium segment may stick to the heating element and cannot be removed.

[0072] The aerosol generating product of the embodiment of the present application is provided with a front plug segment 20 at its distal lip end. In this way, even if adhesion occurs between the heating element 200 and the medium segment 10, when the aerosol generating product 100 is taken out, the front plug segment 20 can limit the medium segment from moving toward the distal lip end of the aerosol generating product 100, thereby facilitating the separation of the heating element 200 and the medium segment 10, and facilitating the removal of the aerosol generating product 100 from the storage chamber of the aerosol generating device.

[0073] The front plug segment 20 can be provided with an internal air channel, which generally runs through the axial ends of the front plug segment 20. Part of the external airflow can flow through the internal air channel of the front plug segment 20 to the medium segment 10, thereby carrying the aerosol generated by the medium segment 10 out of the medium segment 10.

[0074] In related technologies, the front plug section of aerosol-generating products is typically made of polymer materials such as PLA (polylactic acid), PET (polyethylene glycol terephthalate), and CA (cellulose acetate). During use, the front plug section is susceptible to melting and condensation when in contact with the heating element, blocking the internal airway of the front plug section. This significantly increases the draw resistance of the aerosol-generating product during inhalation, reducing the user experience. Therefore, developing an aerosol-generating product that can prevent the medium section from falling off and provide a good inhalation experience is highly desirable.

[0075] In the aerosol generating product of the embodiment of the present application, the front plug segment 20 is arranged at one end of the medium segment 10 and is located at the far lip end of the aerosol generating product 100, and the wrapping layer 30 is arranged around the periphery of the front plug segment 20 and the medium segment 10 and defines a peripheral airway 100a with the periphery of the front plug segment 20, so that the external airflow can flow to the medium segment 10 through the peripheral airway 100a. On the one hand, the front plug segment 20 can reduce the probability of the medium segment 10 falling from the inside of the wrapping layer 30. After the aerosol generated by the medium segment 10 condenses, it is not easy to flow back into the storage chamber of the aerosol generating device under the action of the front plug segment 20, which effectively reduces the problem of contamination and difficulty in cleaning in the storage chamber of the aerosol generating device. At the same time, it effectively avoids the problem of cross-flavoring when the user inhales the aerosol generating products 100 of different flavors. On the other hand, because the peripheral airway 100a is located at the periphery of the front plug segment 20, even if the front plug segment 20 melts or condenses after being heated, the peripheral airway 100a located at the periphery of the front plug segment 20 will not be blocked and may even be slightly enlarged, effectively avoiding the problem of increased draw resistance when the user inhales the aerosol in this state. In this way, the impact of the increased draw resistance of the front plug segment 20 after being heated on the inhaled aerosol is reduced, thereby improving the user's user experience. In other words, the aerosol generating product of the present application is a product that can prevent the medium segment 10 from falling off and provides a good inhalation experience.

[0076] In addition, the peripheral air channel 100a is formed on the periphery of the front plug segment 20. After the external airflow flows through the peripheral air channel 100a to the medium segment 10, it can gradually flow from the periphery of the medium segment 10 to the inside of the medium segment 10. This process can increase the utilization rate of the periphery of the medium segment 10 and improve the suction performance of the aerosol generating product 100.

[0077] In some embodiments, the media segment 10 is an integral structure, that is, the media segment 10 is integrally formed. Exemplarily, the media segment 10 is a particle combination, also known as a powder combination, and is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing a smoke-generating agent, tobacco, and other ingredients. The media segment 10 is an integral structure, and can be formed, for example, by extrusion, injection molding, or die-casting. Extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through a mold at the extruder outlet to form various cross-sectional products or semi-finished products. The media structure formed by extrusion molding is strip-shaped. In this way, the media segment 10 remains an integral medium even after being heated and pumped or after the heating stops, and is less likely to disintegrate and fall off. This solves the problems of thin-sheet, filamentous, or loose granular media segments 10 in the prior art, such as loose flakes, shedding of filamentous and granular components, difficulty in cleaning, and uneven composition.

[0078] Of course, the media segment 10 may also not be an integral structure. For example, it may be in the form of disordered tobacco (formed by directly shredding plant leaves), ordered sheets (formed by using plant leaves or other materials through a papermaking process), or granules (formed by using plant leaves or other materials through a granulation process). The peripheral air channel 100a can also introduce external airflow into the media segment 10 that does not adopt an integral structure.

[0079] It should be noted that the front plug segment 20, the medium segment 10 and the wrapping layer 30 can also be an integrally formed structure.

[0080] As shown in Figures 13 and 14 , the interior of the media segment 10 has at least one air hole 10a, which passes through at least one end of the media segment 10. The air hole 10a is used to collect and circulate aerosol. For example, as shown in Figure 15 , the air hole 10a extends through both the end of the media segment 10 away from the front plug segment 20 and the end of the media segment 10 near the front plug segment 20.

[0081] It should be noted that the media segment 10 is formed with micropores, which are interconnected to form micro-airways. It is understood that the interconnectedness of the micropores may mean that some micropores are interconnected while others are not, or all micropores are interconnected. For example, in an embodiment in which the media segment 10 is a particle assembly, the gaps between the particles constitute the micropores. The size of the micropores is determined by the gaps between the particles.

[0082] The micro-airways can increase the surface area of ​​the medium segment 10, facilitating heat transfer and improving heating efficiency. When heated, the medium in the medium segment 10 releases aerosols, which are then collected through the gaps between the wall materials or the micro-airways and then released through the pores 10a within the medium segment 10. Aerosols released by the atomized medium exposed to the pores 10a (i.e., the atomized medium located on the inner wall surface of the pores 10a) can be released directly into the pores 10a. Aerosols between adjacent pores 10a can also circulate through the micro-airways and be transported to the suction end under the action of the negative suction pressure.

[0083] The shape of the pore 10a is not limited. In some embodiments, the cross-section of the pore 10a is circular, polygonal, star-shaped, or arc-shaped.

[0084] The circular air holes 10 a can increase the lateral support strength of the medium segment 10 and improve the reprocessing performance of the medium segment 10 .

[0085] The specific shape of the polygon is not limited. As shown in FIG13 , for example, it can be a rhombus. The rhombus-shaped air holes 10a can improve the lateral cutting performance of the medium segment 10 and reduce the deformation of the medium segment 10 caused by cutting during processing.

[0086] Of course, it can also be a regular hexagon. The regular hexagon is the best topological structure covering a two-dimensional plane. The regular hexagonal pores 10a can divide the cross section of the middle part of the medium segment 10 more evenly.

[0087] Star-shaped or arc-shaped air holes 10 a can also facilitate the release of aerosol from the medium segment 10 .

[0088] The number of the air holes 10a can be one or more. It should be noted that the "more" in the embodiment of the present application refers to two or more.

[0089] It should be noted that when there are multiple pores 10 a , the pores 10 a may have the same cross-section or different cross-sections.

[0090] Specifically, the distribution of the multiple pores 10a of the dielectric segment 10 is not limited. For example, as shown in FIG13 , in some embodiments, the number of pores 10a is multiple, and the pores 10a are distributed in a matrix pattern on the end surface of the dielectric segment 10. In this way, the aerosol generated by the dielectric segment 10 can flow relatively evenly along the axial direction of the aerosol-generating article 100. Such an aerosol-generating article 100 can be used in either a peripherally heated aerosol-generating device or a centrally heated aerosol-generating device.

[0091] The cross-sectional shape of the air hole 10a in this embodiment can be various shapes such as circular, polygonal or star-shaped.

[0092] In other embodiments, as shown in Figures 14 to 16, based on a central heating type aerosol generating device, the medium segment 10 is provided with a heating hole 10b along its axial extension. The heating hole 10b is used to avoid the heating element 200 of the aerosol generating device. There are multiple air holes 10a, and on the end face of the medium segment 10, the multiple air holes 10a are distributed in a ring shape around the heating hole 10b.

[0093] It should be noted that, in the embodiment of the present application, the axial direction of the dielectric segment 10 is parallel to the first direction.

[0094] The heating element 200 can be inserted into the heating hole 10b and heat the dielectric segment 10. On the end surface of the dielectric segment 10, the air holes 10a are distributed in a circumferential pattern. Specifically, the air holes 10a are divided into multiple layers, each of which is evenly distributed around the circumference of the heating hole 10b. The layers are spaced radially apart from each other along the dielectric segment 10. In this embodiment, the cross-section of the air holes 10a can be arcuate.

[0095] It should be noted that the number of layers of the pores 10a is not limited. For example, as shown in FIG14 , the pores 10a are divided into four layers.

[0096] As shown in FIG. 14 to FIG. 16 , in some embodiments, the heating hole 10 b is located at the center of the dielectric segment 10 , and the hole wall of the heating hole 10 b is in contact with the heating element 200 or is spaced apart therefrom.

[0097] Specifically, as shown in Figure 16, the front plug segment 20 has an internal passage 20b that runs through both the end of the front plug segment 20 away from the media segment 10 and the end of the front plug segment 20 closer to the media segment 10. The heating element 200 passes through the internal passage 20b and extends into the heating hole 10b to heat the media segment 10. Heat is applied to the interior of the media segment 10, making it less likely to dissipate outside the media segment 10, thereby improving the atomization efficiency of the media segment 10.

[0098] The heating hole 10b is located at the center of the medium segment 10, which means that the axis of the heating hole 10b coincides with the axis of the medium segment 10. In this way, heat can be evenly diffused from the center of the medium segment 10 to the outer peripheral wall of the medium segment, and the medium segment 10 as a whole is heated more evenly.

[0099] It should be noted that, in the configuration of the heater 200 and aerosol-generating article 100 shown in FIG16 , the heater 200 contacts both the sidewalls of the internal channel 20b and the walls of the heating hole 10b. This configuration is applicable to heaters 200 that utilize heating methods such as resistive, electromagnetic, or light wave heating. These types of heaters 200 generate relatively high amounts of heat, and after use, some adhesive residue may remain on the heater 200. Since the heater 200 contacts the sidewalls of the internal channel 20b, the sidewalls of the internal channel 20b can scrape against the heater 200 to clean it when the aerosol-generating article 100 is removed.

[0100] Of course, the side wall of the inner channel 20 b may not be in contact with the heating element 200 .

[0101] In other embodiments, the heating element 200 can cooperate with the aerosol-generating article 100 so that the heating element 200 does not contact the heating hole 10b. This cooperation structure is suitable for heating elements 200 that utilize heating methods such as microwave heating. In this type of heating element 200, the heating element 200 is spaced apart from the dielectric segment 10, and the heat applied to the heating element 200 is relatively small, making it less likely to leave adhesive residue. In this embodiment, the heating element 200 can be in partial contact, full contact, or no contact with the sidewall of the internal channel 20b.

[0102] It should be noted that the specific components of the medium segment 10 are not limited here. For example, in some embodiments, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0103] The plant component is used to generate an aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can enhance the release of aroma during the inhalation process, thereby improving the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 10 porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component, etc., constitute a stable mixture to avoid a loose structure.

[0104] For example, the plant ingredients can be one or more combinations of powders formed from crushed tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust, and flavorful plants. Plant ingredients are the core source of flavor, and endogenous substances in plant ingredients can produce a physiological sense of satisfaction in users. Endogenous substances, such as alkaloids, enter the human bloodstream and stimulate the pituitary gland to produce dopamine, thereby achieving a physiological sense of satisfaction.

[0105] Illustratively, the auxiliary ingredient may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers can provide skeletal support for the plant ingredients and also have micropores, which can increase the porosity of the medium segment 10, thereby improving the aerosol release rate. Lubricants include one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the fluidity of the plant ingredient powder, reduce friction between the plant ingredient powders, and achieve a more uniform overall density distribution. They can also reduce the pressure required during the extrusion molding process, reducing die wear. Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to a certain extent, slow the loss of flavoring substances during storage, increase the stability of flavoring substances, and enhance the sensory quality of the product.

[0106] Exemplarily, the smoke-generating agent component may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, tributyrin); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, lauryl acetate). One or more combinations thereof.

[0107] Illustratively, the binder component wets the interface of the component materials, creating close contact and intermolecular attraction, thereby bonding the component materials, such as powders and liquids. The binder component can be a natural plant extract, a non-ionically modified viscous polysaccharide, or a combination thereof, including tamarind polysaccharide, guar gum, and modified cellulose (e.g., carboxymethyl cellulose). The binder serves to bond the particles together, preventing them from loosening. Furthermore, it improves the water resistance of the media segment 10 and is harmless to the human body.

[0108] For example, flavoring ingredients are used to provide characteristic aromas, such as hay, roasted sweet, or solid or liquid substances containing nicotine. Flavoring ingredients can include one or more combinations of tobacco or other plant, aromatic plant extracts, extracts, essential oils, and absolutes. Flavoring ingredients can also include monomeric flavoring substances, such as one or more combinations of megastigmatrienone, neophytadiene, geraniol, and nerol.

[0109] It should be noted that there is no limitation on the manner in which the peripheral air channel 100a is formed between the front plug segment 20 and the wrapping layer 30. For example, in some embodiments, the medium segment 10 extends along a first direction, the front plug segment 20 is disposed at one end of the medium segment 10 along the first direction, and in a plane perpendicular to the first direction, the cross-section of the wrapping layer 30 is annular, while the cross-section of the front plug segment 20 is non-circular.

[0110] In the embodiments of the present application, the first direction does not specifically refer to the direction in which the outer contour of the media segment 10 is longest. Specifically, the direction in which the aerosol-generating article 100 is inserted into the storage chamber and the direction in which the aerosol-generating article 100 is removed from the storage chamber are both parallel to the first direction. The length of the media segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0111] For example, when the media segment 10 has a cylindrical profile, the first direction is the axial direction of the media segment 10. It should be noted that even when the axial length of the media segment 10 is less than its diameter, the first direction of the media segment 10 is still the axial direction. For another example, when the media segment 10 has a rectangular profile, the first direction is still the direction defined above, i.e., the direction for placing the aerosol-generating article 100 in and out of the receiving chamber. The first direction of the media segment 10 can be any of the length, width, or height of the rectangular parallelepiped.

[0112] In this embodiment, the cross-sectional shape of the wrapping layer 30 is a circular ring, as shown in FIG4 . The term "circular ring" refers to the thickness of the wrapping layer 30, resulting in a circular cross-sectional shape between the inner and outer circumferential walls. It is understood that the wrapping layer 30 is typically made of paper and has a relatively small thickness, for example, less than 1 mm, so its cross-sectional shape can also be considered circular.

[0113] Since the cross-section of the front plug segment 20 is non-circular, the outer wall of the front plug segment 20 cannot be completely fitted with the inner wall of the wrapping layer 30, and a gap will be formed between the outer wall of the front plug segment 20 and the inner wall of the wrapping layer 30. This gap constitutes the peripheral airway 100a.

[0114] The wrapping layer 30 with a circular cross-section and the front plug segment 20 with a non-circular cross-section, and the outer wall of the front plug segment 20 and the inner wall of the wrapping layer 30 can form a certain contact, thereby enhancing the stability of the front plug segment 20 installed inside the wrapping layer 30.

[0115] Of course, in other embodiments, when the cross-section of the wrapping layer 30 is annular in a plane perpendicular to the first direction, the front plug segment 20 may also be annular. In this structure, the wrapping layer 30 and the front plug segment 20 need to be connected to the dielectric segment 10, i.e., a gap is formed between the circumferential sidewalls of the front plug segment 20 and the inner sidewalls of the wrapping layer 30.

[0116] It should be noted that when the cross-section of the wrapping layer 30 is circular in a plane perpendicular to the first direction, the specific shape of the non-circular cross-section of the front plug segment 20 is not limited. For example, in some embodiments, the cross-section of the front plug segment 20 is polygonal, racetrack-shaped, sector-shaped, or elliptical.

[0117] Among them, the runway shape refers to: a shape similar to an athletic track, consisting of two semicircles of the same radius and two parallel straight sides alternately connected.

[0118] As shown in FIG. 4 and FIG. 5 , the front plug section 20 is an elliptical cylindrical structure.

[0119] A polygon can have any number of sides and can be a regular polygon or a polygon with unequal sides.

[0120] As shown in FIG6 , on a plane perpendicular to the first direction, the front plug segment 20 has five edges for defining the formation of the peripheral airway 100a. The five edges for defining the formation of the peripheral airway 100a are evenly distributed along the circumference of the front plug segment 20, and there is a connecting edge between any two edges for defining the formation of the peripheral airway 100a (the connecting edge can be a straight edge of uniform length or an arc edge of uniform shape, that is, it can be understood that each corner of a regular hexagon is a right angle or a rounded corner). The connecting edge is used to connect the front plug segment 20 to the wrapping layer 30 to ensure the stable installation of the front plug segment 20. The remaining five edges for defining the formation of the peripheral airway 100a can be arranged to form a shape similar to a regular pentagon. In this embodiment, the number of peripheral airways 100a is at least five.

[0121] As shown in FIG7 , on a plane perpendicular to the first direction, the front plug segment 20 has six edges for defining the formation of the peripheral airway 100a. The six edges for defining the formation of the peripheral airway 100a are evenly distributed along the circumference of the front plug segment 20, and there is a connecting edge between any two edges for defining the formation of the peripheral airway 100a (the connecting edge can be a straight edge of uniform length or an arc edge of uniform shape, that is, it can be understood that each corner of a regular hexagon is a right angle or a rounded corner). The connecting edge is used to connect the front plug segment 20 to the wrapping layer 30 to ensure the stable installation of the front plug segment 20. The remaining six edges for defining the formation of the peripheral airway 100a can be arranged to form a shape similar to a regular hexagon. In this embodiment, the number of peripheral airways 100a is at least six.

[0122] As shown in FIG8 , on a plane perpendicular to the first direction, the front plug segment 20 has twelve edges for defining the formation of the peripheral airway 100 a. The twelve edges for defining the formation of the peripheral airway 100 a are evenly distributed along the circumference of the front plug segment 20, and there is a connecting edge between any two edges for defining the formation of the peripheral airway 100 a (the connecting edge can be a straight edge of uniform length or an arc edge of uniform shape, that is, it can be understood that each corner of a regular hexagon is a right angle or a rounded corner). The connecting edge is used to connect the front plug segment 20 to the wrapping layer 30 to ensure the stable installation of the front plug segment 20. The remaining twelve edges for defining the formation of the peripheral airway 100 a can be arranged to form a regular dodecagon. In this embodiment, the number of peripheral airways 100 a is at least twelve.

[0123] As shown in Figures 9 to 12, in some embodiments, the medium segment 10 extends along the first direction, the front plug segment 20 is arranged at one end of the medium segment 10 along the first direction, the side wall of the front plug segment 20 is recessed to form an air groove 20a, the air groove 20a extends along the first direction, and the groove wall of the air groove 20a and the wrapping layer 30 define a peripheral air channel 100a.

[0124] In this embodiment, the outer wall of the front plug section 20 except the groove wall of the air groove 20a can be connected to the inner wall of the wrapping layer 30. In this way, the space of the air groove 20a can basically be used as the space of the peripheral air channel 100a.

[0125] It should be noted that, in this embodiment, the specific shape of the wrapping layer 30 is not limited. Since the side wall of the front plug segment 20 is recessed to form the air groove 20a, as long as the front plug segment 20 and the wrapping layer 30 are installed, the inner side wall of the wrapping layer 30 does not occupy all the space in the air groove 20a. In this way, a peripheral air channel 100a is formed between the inner side wall of the wrapping layer 30 and the groove wall of the air groove 20a.

[0126] The number of air slots 20a is not limited. It can be one or more. More than one refers to any number of two or more.

[0127] When there are multiple air grooves 20a, the multiple air grooves 20a are spaced apart along the circumference of the front plug section 20. Of course, they can be distributed at equal intervals or at irregular intervals.

[0128] Since the outer peripheral wall of the front plug section 20 is recessed to form an air groove 20a, the molding of the peripheral air channel 100a is facilitated, and the requirements for the wrapping layer 30 are reduced. In this way, the wrapping layer 30 only needs to meet the size of the medium section 10, and the structure of the wrapping layer 30 is more unified, which reduces the production cost of the aerosol generating product 100 and makes the appearance of the aerosol generating product 100 more beautiful.

[0129] It should be noted that the shape of the air groove 20a is not limited. For example, in some embodiments, on a plane perpendicular to the first direction, the cross-section of the air groove 20a is V-shaped, arc-shaped, rectangular, or trapezoidal.

[0130] Specifically, as shown in FIG9 and FIG10 , the cross-sectional shape of the air groove 20 a is V-shaped, which means that the cross-sectional shape of the air groove 20 a is composed of two substantially straight sides on a plane perpendicular to the first direction.

[0131] The arc shape means that on a plane perpendicular to the first direction, the cross section of the air groove 20a is composed of a side that is substantially an arc line.

[0132] The rectangle and trapezoid are similar and will not be described in detail in this application.

[0133] In this embodiment, the shape of the air groove 20 a is relatively more regular, which facilitates the creation of the air groove 20 a.

[0134] Of course, the cross-section of the air groove 20a is not limited to the above-mentioned shapes. The edges of the air groove 20a can also be formed by a combination of various lines. In this way, an air groove 20a with an irregular cross-section shape is formed on a plane perpendicular to the first direction.

[0135] In some embodiments, on a plane perpendicular to the first direction, the cross-section of the air groove 20 a is V-shaped, there are multiple air grooves 20 a , and the air grooves 20 a are evenly distributed along the circumference of the front plug segment 20 .

[0136] Specifically, as shown in Figure 9, the number of air grooves 20a is five, and the five V-shaped air grooves 20a are evenly spaced along the circumference of the front plug segment 20. On the plane perpendicular to the first direction, the other parts of the front plug segment 20 except the V-shaped edges constituting the air grooves 20a are connecting edges (the connecting edges can be straight edges with consistent lengths or arc edges with consistent shapes, that is, it can be understood that each corner of a regular hexagon is a right angle or a rounded corner). The connecting edges can be used to connect with the wrapping layer 30, thereby improving the installation stability between the wrapping layer 30 and the front plug segment 20. Without considering the connecting edges, the cross-section of the front plug segment 20 composed of the five V-shaped edges is roughly in the shape of a five-pointed star.

[0137] As shown in Figure 10, the number of air grooves 20a is six, and the six V-shaped air grooves 20a are evenly spaced along the circumference of the front plug segment 20. On the plane perpendicular to the first direction, the other parts of the front plug segment 20 except the V-shaped edges constituting the air grooves 20a are connecting edges (the connecting edges can be straight edges with consistent lengths or arc edges with consistent shapes, that is, it can be understood that each corner of a regular hexagon is a right angle or a rounded corner). The connecting edges can be used to connect with the wrapping layer 30, thereby improving the installation stability between the wrapping layer 30 and the front plug segment 20. Without considering the connecting edges, the cross-section of the front plug segment 20 composed of the six V-shaped edges is roughly in the shape of a hexagonal star.

[0138] Of course, the number of the air slots 20a may also be seven, eight, etc.

[0139] In some embodiments, the air groove 20a extends linearly or spirally along the first direction.

[0140] Specifically, as shown in Figure 11 , the air groove 20a extends linearly along the first direction, and the peripheral air channel 100a also extends linearly along the first direction. Thus, the peripheral air channel 100a has a lower suction resistance.

[0141] As shown in Figure 12, the air groove 20a extends spirally along a first direction. The spiral extension means that the extension direction of the air groove 20a can be decomposed into a linear direction along the first direction and a circumferential direction along the front plug segment 20. In this way, after the peripheral air channel 100a is defined between the air groove 20a and the wrapping layer 30, the length of the peripheral air channel 100a can be appropriately increased under the condition that the length of the front plug segment 20 along the first direction is constant. In the event of condensation and reflux of aerosol, and after reflux into the peripheral air channel 100a, the risk of the aerosol forming a condenser refluxing into the storage chamber of the aerosol generating device can be further reduced.

[0142] At the same time, after the airflow flows through the spirally extended peripheral air channel 100a to the medium section 10, a gas turbulence phenomenon can be formed inside the medium section 10, thereby improving the aerosol extraction efficiency.

[0143] As shown in FIG2 , in some embodiments, the media segment 10 extends along a first direction, the front plug segment 20 is disposed at one end of the media segment 10 along the first direction, and the ratio of the dimension L1 of the front plug segment 20 along the first direction to the dimension L2 of the aerosol-generating article 100 along the first direction ranges from 1 / 12 to 1 / 3, for example, 1 / 12, 1 / 11, 1 / 10, 1 / 9, 1 / 8, 1 / 7, 1 / 6, 1 / 5, 1 / 4, 1 / 3, and the like.

[0144] On the one hand, the ratio of the dimension L1 of the front plug segment 20 along the first direction to the dimension L2 of the aerosol generating product 100 along the first direction is controlled within a range of not less than 1 / 12. In this way, the front plug segment 20 has a sufficiently long size to ensure the filtering and adsorption effect of the front plug segment 20 on the backflow or reflux aerosol, thereby ensuring the cleaning effect in the containing chamber of the aerosol generating device. At the same time, the front plug segment 20 has a suitable size and is easy to process, that is, the processing performance is relatively good, thereby improving the yield rate of the front plug segment 20 during the production process.

[0145] On the other hand, the ratio of the dimension L1 of the front plug segment 20 along the first direction to the dimension L2 of the aerosol generating article 100 along the first direction is controlled within a range of no more than 1 / 3. In this way, the suction resistance generated by the front plug segment 20 during the aerosol inhalation process can be controlled within an appropriate range. The suction resistance of the front plug segment 20 will not be too large, that is, the impact on the user's aerosol inhalation process is small, effectively avoiding the problem of a decrease in user experience.

[0146] Furthermore, in some embodiments, the media segment 10 extends along the first direction, the front plug segment 20 is disposed at one end of the media segment 10 along the first direction, and the ratio of the dimension L1 of the front plug segment 20 along the first direction to the dimension L2 of the aerosol-generating article 100 along the first direction ranges from 1 / 10 to 1 / 4. For example, the ratio is 1 / 10, 2 / 19, 1 / 9, 2 / 17, 1 / 8, 2 / 15, 2 / 7, 2 / 13, 1 / 6, 2 / 11, 1 / 5, 2 / 9, 1 / 4, etc. In this way, the front plug segment 20 has a more suitable size.

[0147] In some embodiments, the ratio of the cross-sectional area of ​​the front plug segment 20 to the cross-sectional area of ​​the media segment 10 is in the range of 0.4 to 0.95, for example, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, etc.

[0148] It should be noted that the cross-sectional area of ​​the front plug segment 20 refers to the area of ​​the cross section of the front plug segment 20 on a plane perpendicular to the first direction.

[0149] The cross-sectional area of ​​the dielectric segment 10 is also the area of ​​the cross section of the dielectric segment 10 on a plane perpendicular to the first direction.

[0150] It can be understood that the cross-sectional area of ​​the dielectric segment 10 is substantially equal to the area of ​​the region enclosed by the inner sidewall of the wrapping layer 30 .

[0151] On the one hand, the ratio of the cross-sectional area of ​​the front plug segment 20 to the cross-sectional area of ​​the medium segment 10 is controlled within a range of not less than 0.4, and the size of the peripheral air channel 100a defined and formed between the front plug segment 20 and the wrapping layer 30 will not be too large. In this way, the concentration of the airflow flowing through the peripheral air channel 100a to the medium segment 10 is relatively high, thereby improving the extraction efficiency of the airflow for the aerosol. At the same time, the suction resistance of the front plug segment 20 can be controlled within an appropriate range, so that the aerosol generating product 100 has a certain suction resistance during the inhalation process, reducing the probability of air inhalation when the user inhales the aerosol.

[0152] On the other hand, by controlling the ratio of the cross-sectional area of ​​the front plug segment 20 to the cross-sectional area of ​​the medium segment 10 within a range not exceeding 0.95, the size of the peripheral air channel 100a defined and formed between the front plug segment 20 and the wrapping layer 30 will not be too small. Thus, even if the peripheral surface of the front plug segment 20 is heated to cause condensation, melting, etc., the probability of the peripheral air channel 100a being completely blocked is reduced, and the external airflow can still flow from the peripheral air channel 100a to the medium segment 10, so that the user can normally inhale the aerosol generated by the medium segment 10, which effectively reduces the probability of the user having difficulty or being unable to inhale the aerosol in the aerosol generating product 100.

[0153] Furthermore, in some embodiments, the ratio of the cross-sectional area of ​​the front plug segment 20 to the cross-sectional area of ​​the media segment 10 ranges from 0.65 to 0.91, such as 0.65, 0.67, 0.69, 0.71, 0.73, 0.75, 0.77, 0.79, 0.81, 0.83, 0.85, 0.87, 0.89, 0.91, etc. In this way, the peripheral air channel 100a formed between the front plug segment 20 and the wrapping layer 30 has a more appropriate size.

[0154] It should be noted that the molding method of the front plug segment 20 is not limited. For example, in some embodiments, the front plug segment 20 is a gathered molded structure, an extruded molded structure, or a cast molded structure. In this way, the front plug segment 20 is integrally formed, and the components of the front plug segment 20 are more uniform, and the structure is more stable.

[0155] Of course, the front plug section 20 can also be formed by a split molding structure or other integral molding methods.

[0156] It should be noted that the material of the front plug segment 20 is not limited. For example, in some embodiments, the material of the front plug segment 20 includes at least one of CA (Cellulose acetate), PET (Polyethylene glycol terephthalate), PLA (Polylactic acid), PC (Polycarbonate), and PA (polyamide fiber or nylon).

[0157] It is understandable that the front plug segment 20 can be made of any one of the above materials, or a mixture of the above materials, and this application does not limit this.

[0158] Of course, the material of the front plug section 20 is not limited to the materials mentioned above. For example, it can also be silicone, plant materials, etc., which can be selected according to actual conditions.

[0159] In some embodiments, the aerosol generating article 100 further includes a basic structure segment 40 , which is disposed at an end of the medium segment 10 away from the front plug segment 20 , and the basic structure segment 40 includes at least one of a support segment 41 , a filter segment 43 , and a cooling segment 42 .

[0160] Specifically, as shown in Figure 2, the media segment 10 extends along a first direction, the front plug segment 20 is disposed at one end of the media segment 10 along the first direction, and the base structure segment 40 includes a support segment 41, a cooling segment 42, and a filter segment 43. The support segment 41 is disposed at the end of the media segment 10 away from the front plug segment 20 along the first direction. The cooling segment 42 is disposed at one end of the support segment 41 away from the media segment 10 along the first direction. The filter segment 43 is disposed at the other end of the cooling segment 42. The support segment 41 connects and supports the media segment 10 and the cooling segment 4214 at both ends. The cooling segment 42 is used to reduce the temperature of the aerosol to ensure that the aerosol flowing out of the filter segment 43 is at an appropriate temperature, thereby avoiding the problem of aerosol "burning the mouth."

[0161] Of course, the positions of the support section 41 and the cooling section 42 can also be exchanged, that is, the cooling section 42 is connected to the end of the medium section 10 away from the front plug section 20, and the two ends of the support section 41 are respectively connected to the other end of the cooling section 42 and the filtering section 43.

[0162] The structure of the support section 41 is not limited. For example, it can be a hollow paper tube structure or a hollow aluminum foil tube structure. Hollow paper tube structures and hollow aluminum foil tube structures have excellent heat resistance, are not easily deformed by heat, and can maintain their shape after heat conduction, thereby increasing the structural stability of the aerosol generating article 100.

[0163] Of course, it can also be a hollow acetate fiber structure, a hollow aluminum foil paper tube structure, a hollow silicone structure, etc.

[0164] The cooling section 42 can be, for example, a hollow paper tube, a cellulose acetate tube, or an aluminum foil tube. Specifically, the cooling section 42 has a porous interior. When the airflow, carrying the aerosol, passes through the cooling section 42, a Venturi effect is created (the Venturi effect refers to the phenomenon in which a fluid increases in velocity when passing through a reduced flow area, with the velocity being inversely proportional to the flow area). This allows the aerosol to pass through the cooling section 42 more quickly, thereby enabling faster aerosol extraction. The cooling section 42 has a large specific surface area, enabling rapid cooling of the aerosol.

[0165] Of course, the cooling section 42 can also be a hollow paper tube, a hollow acetate fiber or a corrugated paper tube.

[0166] The wrap layer 30 may wrap around the outer circumference of the chassis segment 40 .

[0167] It should be noted that when the wrapping layer 30 wraps the entire circumferential outer surface of the filter segment 43, the user can directly hold the wrapping layer 30 in the mouth to use the aerosol. When the wrapping layer 30 wraps part of the circumferential outer surface of the filter segment 43, the user can directly hold the filter segment 43 exposed outside the wrapping layer 30 in the mouth to inhale the aerosol. Of course, the user can also install a suction nozzle on the outer surface of the filter segment 43 and inhale the aerosol through the suction nozzle.

[0168] It should be noted that the wrapping layer 30 can be a single layer, that is, a single wrapping layer 30 wraps the medium segment 10 , the front plug segment 20 and the basic structure segment 40 at the same time.

[0169] Of course, the wrapping layer 30 may also be multiple layers. Any of the dielectric segment 10, the front plug segment 20, and the base structure segment 40 may be wrapped by at least one layer of the wrapping layer 30, resulting in a multi-segment structure. Alternatively, at least two of the dielectric segment 10, the front plug segment 20, and the base structure segment 40 may be wrapped by at least one layer of the wrapping layer 30, resulting in a multi-segment structure. The multi-segment structure may then be further wrapped by one or more layers of the wrapping layer 30 to form the aerosol generating article 100.

[0170] In some embodiments, as shown in FIG. 3 and FIG. 4 to FIG. 11 , the front plug segment 20 has an internal channel 20 b , which runs through an end of the front plug segment 20 away from the medium segment 10 and an end of the front plug segment 20 close to the medium segment 10 .

[0171] It should be noted that, in the implementation of this application, the end away from the dielectric segment 10 and the end close to the dielectric segment 10 are the two ends in the first direction.

[0172] Internal channel 20b can serve as the aforementioned internal airway of media segment 10, specifically, directing external airflow toward media segment 10, thereby facilitating the extraction of aerosol generated by media segment 10. Internal channel 20b synergizes with peripheral airway 100a to improve aerosol extraction efficiency. For example, in a periphery-heating aerosol generating device, the heater 200 is positioned at the periphery of media segment 10. Under the influence of negative suction pressure, external airflow enters internal channel 20b and flows toward media segment 10.

[0173] Of course, for a periphery heating type aerosol generating device, the front plug section 20 may not be provided with the internal channel 20b. As shown in FIG12 , the aerosol generating article 100 guides the external airflow to the medium section 10 through the peripheral air channel 100a.

[0174] In other embodiments, the internal channel 20 b is used to avoid the heating element 200 of the aerosol generating device, so that the heating element 200 can pass through the front plug segment 20 and be inserted into the medium segment 10 .

[0175] Specifically, based on the central heating type aerosol generating device, the heating element 200 needs to be inserted into the interior of the medium segment 10 to heat the medium segment 10 , and the internal channel 20 b can facilitate the insertion of the heating element 200 into the interior of the medium segment 10 .

[0176] In the related art, since the heating element is arranged in the internal channel of the front plug section, the suction resistance of the front plug section will increase, affecting the user's smoking experience.

[0177] In the embodiment of the present application, a peripheral air channel 100 a is defined between the front plug section 20 and the wrapping layer 30 . The peripheral air channel 100 a can reduce the suction resistance of the front plug section 20 , facilitate the extraction of aerosols, and improve the user's smoking experience.

[0178] In addition, the peripheral air channel 100a can guide the external airflow to the periphery of the medium segment 10 (ie, guide the external airflow to the part of the medium segment 10 away from the heating element 200), and the medium segment 10 can release the aerosol more fully.

[0179] Specifically, the medium segment 10 is provided with at least one heating hole 10 b , and the heating element 200 is inserted into the heating hole 10 b after passing through the internal channel 20 b , thereby being able to heat the medium segment 10 .

[0180] In this embodiment, when the cross-section of the wrapping layer 30 is annular, the cross-section of the front plug segment 20 may be non-circular. In this way, after at least a portion of the sidewall of the front plug segment 20 is connected to the wrapping layer 30, the peripheral air channel 100a is defined between the front plug segment 20 and the wrapping layer 30. That is, while ensuring the installation stability of the front plug segment 20 on the wrapping layer 30, the formation of the peripheral air channel 100a is also facilitated.

[0181] It will be appreciated that the specific number of internal channels 20b is not limited and can be designed to match the number of heating elements 200. For example, when the aerosol-generating article 100 is used with an aerosol-generating device having three heating elements 200, the front plug section 20 can accordingly define at least three internal channels 20b.

[0182] It should be noted that the specific shape of the internal channel 20b is not limited. For example, in some embodiments, the cross section of the internal channel 20b is slit-shaped.

[0183] The slit-shaped internal channel 20b is narrow and long in cross section, so that the internal channel 20b can be suitable for a sheet-shaped heating element 200. After the heating element 200 is inserted into the internal channel 20b, the slit-shaped internal channel 20b can prevent the aerosol generating article 100 from rotating in the receiving chamber.

[0184] In other embodiments, the cross section of the internal channel 20b is in the shape of a hole.

[0185] The specific shape of the hole is not limited, for example, it can be a star-shaped hole, a round hole or a square hole.

[0186] The circular hole-shaped internal passage 20b allows the heater 200 to be inserted into the internal passage 20b without requiring a specific insertion angle when the aerosol-generating article 100 is placed into the receiving chamber. In other words, the circular hole-shaped internal passage 20b facilitates the mating of the aerosol-generating article 100 and the heater 200.

[0187] When the star-shaped or square-shaped internal channel 20b cooperates with the heating element 200, the aerosol generating product 100 can effectively prevent the aerosol generating product 100 from rotating in the receiving chamber during use.

[0188] In some embodiments, as shown in FIG. 16 , the heating element 200 is disposed in the internal channel 20 b , and at least a portion of the sidewall of the internal channel 20 b is in contact with the peripheral wall of the heating element 200 .

[0189] It can be understood that the heating element 200 based on heating types such as resistance, electromagnetic or light wave heating has a relatively large amount of heat itself. After the heating element 200 is inserted into the dielectric segment 10, it contacts the hole wall of the pore 10a of the dielectric segment 10. During the use of the aerosol generating system, some adhesive may remain on the dielectric segment 10 on the heating element 200. By fitting at least part of the side wall of the internal channel 20b with the peripheral wall of the heating element 200, when the aerosol generating product 100 is taken out, scraping can be generated between the heating element 200 and the side wall of the internal channel 20b, thereby facilitating the effective removal of the adhesive.

[0190] The specific manner in which at least a portion of the sidewall of the internal channel 20b is bonded to the peripheral wall of the heating element 200 is not limited. For example, the front plug segment 20 may be made of an elastic material, and in a plane perpendicular to the first direction, at least a portion of the projection of the heating element 200 is located outside the projection of the internal channel 20b. During the insertion of the heating element 200 into the internal channel 20b, the sidewall of the internal channel 20b undergoes elastic deformation. In this way, this portion of the sidewall wraps around the periphery of the heating element 200 under the action of the elastic force, and the wrapping effect is improved under the action of the elastic force. During the withdrawal of the heating element 200 from the internal channel 20b, this portion of the sidewall of the internal channel 20b also provides a better scraping effect on the heating element 200.

[0191] Of course, the front plug section 20 can also be made of non-elastic material. The diameter of the internal channel 20b of the front plug section 20 of this material can match the heating element 200, so that the side wall of the heating element 200 can contact at least part of the side wall of the internal channel 20b.

[0192] In other embodiments, the front plug segment 20 has an internal channel 20b, which runs through one end of the front plug segment 20 away from the medium segment 10 and the other end close to the medium segment 10. The heating element 200 is arranged in the internal channel 20b, and at least part of the side wall of the internal channel 20b is set in a gap with the heating element 200.

[0193] That is, the peripheral wall of the heating element 200 may not be in contact with the side wall of the internal channel 20b.

[0194] For example, after the microwave-heating heating element 200 is inserted into the dielectric segment 10, a gap can be set between it and the heating hole 10 of the dielectric segment 10. This reduces the amount of heat applied to the heating element 200, and the likelihood of residual adhesive from the dielectric segment 10 adhering to the heating element 200 is relatively small. The peripheral wall of the heating element 200 does not contact the sidewalls of the internal channel 20b. Thus, a gap is formed between the heating element 200 and the sidewalls of the internal channel 20b along the circumference. This gap facilitates the guidance of external airflow toward the dielectric segment 10, thereby improving the efficiency of aerosol extraction. Furthermore, the internal channel 20b does not generate friction on the heating element 200. This reduces the risk of the front plug segment 20 scraping against the heating element 200 and causing structural wear during the insertion or removal of the heating element 200 from the internal channel 20b.

[0195] As shown in Figures 14 to 16, in some embodiments, the heating element 200 penetrates the internal channel 20b and further extends into the heating hole 10b of the medium segment 10 corresponding to the internal channel 20b. The heating element 200 contacts the inner wall of the heating hole 10b or is provided with a gap.

[0196] The heating hole 10b of the dielectric segment 10 corresponding to the inner channel 20b means that the inner channel 20b and the heating hole 10b are coaxially arranged.

[0197] It should be noted that, in the matching structure shown in FIG16 , the heating element 200 contacts the inner wall of the heating hole 10 b . This matching structure can be applied to the heating element 200 that adopts heating methods such as resistance, electromagnetic or light wave heating.

[0198] Of course, a gap may also be provided between the heating element 200 and the inner wall of the heating hole 10b. This matching structure may be applicable to the heating element 200 that adopts a heating method such as microwave heating.

[0199] The following is a brief introduction to eight specific embodiments with reference to the accompanying drawings.

[0200] First embodiment

[0201] Referring to Figures 1 to 5 , a front plug segment 20 is disposed at one end of the media segment 10, and a base structure segment 40 is disposed at the other end. In this embodiment, the front plug segment 20 is an elliptical cylindrical structure measuring 1 / 8 to 1 / 5 the length of the aerosol generating article 100. The front plug segment 20 is made of PA and is formed by a process of forming. The cross-sectional area ratio of the front plug segment 20 to the media segment 10 is 0.69 to 0.91:1. The media segment 10 is made from tea leaves, and the base structure segment 40 comprises a support segment 41, a cooling segment 42, and a filtration segment 43. During use, the aerosol generating device heats the medium segment 10 via the heating element 200 to generate an aerosol. The pressure generated by suction forces airflow through the peripheral airway 100a formed by the gap between the front plug segment 20 and the wrapping layer 30, toward the medium segment 10. The aerosol generated by the medium segment 10 is extracted, passed through the support segment 41 and the cooling segment 42 of the base structure segment 40, and then exits through the filtration segment 43 for consumption by the user. After the suction is completed, the suction pressure applied by the user dissipates, and the front plug segment 20 filters and absorbs the condensate formed by the aerosol, reducing the backflow of condensate into the aerosol generating device and preventing contamination of the aerosol generating device.

[0202] The front plug segment 20 is provided with an internal channel 20b, which runs through both axial ends of the front plug segment. Based on a centrally heated aerosol generating device, the internal channel 20b facilitates the heating element 200 to pass through the internal channel 20b and contact the medium segment 10, thereby heating the medium segment 10 and generating aerosol. The internal channel 20b also serves as the internal airway of the front plug segment 20. In this way, it cooperates with the peripheral airway 100a to guide the external airflow into the medium segment 10, further reducing the inhalation resistance of the front plug segment 20 and improving the aerosol extraction efficiency.

[0203] Based on the central heating type aerosol generating device, for example, a heating element 200 using a heating method such as resistance, electromagnetic or light wave heating, the heating element 200 generates a large amount of heat, and adhesive residues are easily left on the heating element 200. At least part of the side wall of the internal channel 20b can be in contact with the peripheral wall of the heating element 200. In this way, during the process of withdrawing the heating element 200 from the internal channel 20b, the front plug section 20 can clean the adhesive residues on the heating element 200 by scraping the heating element 200. For example, for a heating element 200 using a heating method such as microwave heating, the heat on the heating element 200 is relatively small, and adhesive residues are not easily left on the heating element 200. The side walls of the channel 20b may not contact the peripheral walls of the heating element 200. In this way, when the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, a gap is formed between the heating element 200 and the side walls of the internal channel 20b in the circumferential direction. This gap facilitates the external airflow to be guided to the medium segment 10, thereby improving the aerosol extraction efficiency. At the same time, the internal channel 20b does not generate friction on the heating element 200. When the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, the risk of the front plug segment 20 scraping the heating element 200 and causing wear on the structure of the heating element 200 can also be reduced.

[0204] Second embodiment

[0205] Referring to Figures 1, 2, and 6, a front plug segment 20 is disposed at one end of the media segment 10, and a base structure segment 40 is disposed at the other end. In this embodiment, the front plug segment 20 is a pentagonal, columnar structure, and its length is 1 / 6 to 9 / 40 of the length of the aerosol-generating article 100. The front plug segment 20 is made of PLA and is formed by a process of forming. The cross-sectional area ratio of the front plug segment 20 to the media segment 10 is 0.75 to 0.85:1. The media segment 10 is processed from tobacco raw material, and the base structure segment 40 comprises a support segment 41, a cooling segment 42, and a filter segment 43. During use, the aerosol generating device heats the medium segment 10 via the heating element 200 to generate an aerosol. The pressure generated by suction forces airflow through the peripheral airway 100a formed by the gap between the front plug segment 20 and the wrapping layer 30, toward the medium segment 10. The aerosol generated by the medium segment 10 is extracted, passed through the support segment 41 and the cooling segment 42 of the base structure segment 40, and then exits through the filtration segment 43 for consumption by the user. After the suction is completed, the suction pressure applied by the user dissipates, and the front plug segment 20 filters and absorbs the condensate formed by the aerosol, reducing the backflow of condensate into the aerosol generating device and preventing contamination of the aerosol generating device.

[0206] The front plug segment 20 is provided with an internal channel 20b, which runs through both axial ends of the front plug segment. Based on a centrally heated aerosol generating device, the internal channel 20b facilitates the heating element 200 to pass through the internal channel 20b and contact the medium segment 10, thereby heating the medium segment 10 and generating aerosol. The internal channel 20b also serves as the internal airway of the front plug segment 20. In this way, it cooperates with the peripheral airway 100a to guide the external airflow into the medium segment 10, further reducing the inhalation resistance of the front plug segment 20 and improving the aerosol extraction efficiency.

[0207] Based on the central heating type aerosol generating device, for example, a heating element 200 using a heating method such as resistance, electromagnetic or light wave heating, the heating element 200 generates a large amount of heat, and adhesive residues are easily left on the heating element 200. At least part of the side wall of the internal channel 20b can be in contact with the peripheral wall of the heating element 200. In this way, during the process of withdrawing the heating element 200 from the internal channel 20b, the front plug section 20 can clean the adhesive residues on the heating element 200 by scraping the heating element 200. For example, for a heating element 200 using a heating method such as microwave heating, the heat on the heating element 200 is relatively small, and adhesive residues are not easily left on the heating element 200. The side walls of the channel 20b may not contact the peripheral walls of the heating element 200. In this way, when the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, a gap is formed between the heating element 200 and the side walls of the internal channel 20b in the circumferential direction. This gap facilitates the external airflow to be guided to the medium segment 10, thereby improving the aerosol extraction efficiency. At the same time, the internal channel 20b does not generate friction on the heating element 200. When the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, the risk of the front plug segment 20 scraping the heating element 200 and causing wear on the structure of the heating element 200 can also be reduced.

[0208] Third embodiment

[0209] 1 , 2 and 7 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, with the main differences including that the front plug section 20 is a hexagonal columnar structure.

[0210] Fourth embodiment

[0211] 1 , 2 and 8 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, with the main differences including that the front plug section 20 is a dodecagonal columnar structure.

[0212] Fifth embodiment

[0213] Referring to Figures 1, 2, and 9, a front plug segment 20 is disposed at one end of the media segment 10, and a base structure segment 40 is disposed at the other end. In this embodiment, the front plug segment 20 is a five-pointed star-like columnar structure, and its length is 1 / 7 to 1 / 4 the length of the aerosol-generating article 100. The front plug segment 20 is made of PET and is cast. The cross-sectional area ratio of the front plug segment 20 to the media segment 10 is 0.77 to 0.87:1. The media segment 10 is processed from tobacco raw material, and the base structure segment 40 includes a support segment 41, a cooling segment 42, and a filter segment 43. During use, the aerosol generating device heats the medium segment 10 via the heating element 200 to generate an aerosol. The pressure generated by suction forces airflow through the peripheral air channel 100a formed between the walls of the air slot 20a and the wrapping layer 30, toward the medium segment 10. The aerosol generated by the medium segment 10 is extracted, passed through the support section 41 and the cooling section 42 of the base structure section 40, and then exits through the filtration section 43 for consumption by the user. After the suction is completed, the suction pressure applied by the user dissipates, and the front plug section 20 filters and absorbs the condensate formed by the aerosol, reducing the backflow of condensate into the aerosol generating device and preventing contamination of the aerosol generating device.

[0214] The front plug segment 20 is provided with an internal channel 20b, which runs through both axial ends of the front plug segment. Based on a centrally heated aerosol generating device, the internal channel 20b facilitates the heating element 200 to pass through the internal channel 20b and contact the medium segment 10, thereby heating the medium segment 10 and generating aerosol. The internal channel 20b also serves as the internal airway of the front plug segment 20. In this way, it cooperates with the peripheral airway 100a to guide the external airflow into the medium segment 10, further reducing the inhalation resistance of the front plug segment 20 and improving the aerosol extraction efficiency.

[0215] Based on the central heating type aerosol generating device, for example, a heating element 200 using a heating method such as resistance, electromagnetic or light wave heating, the heating element 200 generates a large amount of heat, and adhesive residues are easily left on the heating element 200. At least part of the side wall of the internal channel 20b can be in contact with the peripheral wall of the heating element 200. In this way, during the process of withdrawing the heating element 200 from the internal channel 20b, the front plug section 20 can clean the adhesive residues on the heating element 200 by scraping the heating element 200. For example, for a heating element 200 using a heating method such as microwave heating, the heat on the heating element 200 is relatively small, and adhesive residues are not easily left on the heating element 200. The side walls of the channel 20b may not contact the peripheral walls of the heating element 200. In this way, when the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, a gap is formed between the heating element 200 and the side walls of the internal channel 20b in the circumferential direction. This gap facilitates the external airflow to be guided to the medium segment 10, thereby improving the aerosol extraction efficiency. At the same time, the internal channel 20b does not generate friction on the heating element 200. When the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, the risk of the front plug segment 20 scraping the heating element 200 and causing wear on the structure of the heating element 200 can also be reduced.

[0216] Sixth embodiment

[0217] 1 , 2 and 10 , in this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fifth embodiment, with the main differences including that the front plug section 20 is shaped like a hexagonal star columnar structure.

[0218] Seventh embodiment

[0219] Referring to Figures 1, 2, and 11, a front plug segment 20 is disposed at one end of the media segment 10, and a base structure segment 40 is disposed at the other end. In this embodiment, an air groove 20a is defined on the periphery of the front plug segment 20. The air groove 20a extends linearly along a first direction and can be square, arcuate, circular, or other regular or irregular shapes. The walls of the air groove 20a and the wrapping layer 30 define an outer peripheral air channel 100a. The length of the front plug segment 20 is 1 / 6 to 1 / 4 of the length of the aerosol-generating article 100. The front plug segment 20 is made of PET by casting, but can also be extruded from silicone or plant materials. The cross-sectional area ratio of the front plug segment 20 to the media segment 10 is 0.67 to 0.88:1. The media segment 10 is made of tobacco raw material. The base structure segment 40 comprises a support segment 41, a cooling segment 42, and a filter segment 43. During use, the aerosol generating device heats the medium segment 10 via the heating element 200 to generate an aerosol. The pressure generated by suction forces airflow through the peripheral air channel 100a formed between the walls of the air slot 20a and the wrapping layer 30, toward the medium segment 10. The aerosol generated by the medium segment 10 is extracted, passed through the support section 41 and the cooling section 42 of the base structure section 40, and then exits through the filtration section 43 for consumption by the user. After the suction is completed, the suction pressure applied by the user dissipates, and the front plug section 20 filters and absorbs the condensate formed by the aerosol, reducing the backflow of condensate into the aerosol generating device and preventing contamination of the aerosol generating device.

[0220] The front plug segment 20 is provided with an internal channel 20b, which runs through both axial ends of the front plug segment. Based on a centrally heated aerosol generating device, the internal channel 20b facilitates the heating element 200 to pass through the internal channel 20b and contact the medium segment 10, thereby heating the medium segment 10 and generating aerosol. The internal channel 20b also serves as the internal airway of the front plug segment 20. In this way, it cooperates with the peripheral airway 100a to guide the external airflow into the medium segment 10, further reducing the inhalation resistance of the front plug segment 20 and improving the aerosol extraction efficiency.

[0221] Based on the central heating type aerosol generating device, for example, a heating element 200 using a heating method such as resistance, electromagnetic or light wave heating, the heating element 200 generates a large amount of heat, and adhesive residues are easily left on the heating element 200. At least part of the side wall of the internal channel 20b can be in contact with the peripheral wall of the heating element 200. In this way, during the process of withdrawing the heating element 200 from the internal channel 20b, the front plug section 20 can clean the adhesive residues on the heating element 200 by scraping the heating element 200. For example, for a heating element 200 using a heating method such as microwave heating, the heat on the heating element 200 is relatively small, and adhesive residues are not easily left on the heating element 200. The side walls of the channel 20b may not contact the peripheral walls of the heating element 200. In this way, when the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, a gap is formed between the heating element 200 and the side walls of the internal channel 20b in the circumferential direction. This gap facilitates the external airflow to be guided to the medium segment 10, thereby improving the aerosol extraction efficiency. At the same time, the internal channel 20b does not generate friction on the heating element 200. When the heating element 200 is inserted into the internal channel 20b or removed from the internal channel 20b, the risk of the front plug segment 20 scraping the heating element 200 and causing wear on the structure of the heating element 200 can also be reduced.

[0222] Eighth embodiment

[0223] Referring to Figures 1, 2, and 12, a front plug segment 20 is disposed at one end of the media segment 10, and a base structure segment 40 is disposed at the other end. In this embodiment, the front plug segment 20 is provided with an air groove 20a on its periphery. The air groove 20a extends spirally in a first direction. In a plane perpendicular to the first direction, the cross-section of the air groove 20a can be square, arcuate, circular, or other regular or irregular shapes. The walls of the air groove 20a and the wrapping layer 30 define a peripheral air channel 100a. The length of the front plug segment 20 is 1 / 8 to 1 / 5 of the length of the aerosol-generating article 100. The front plug segment 20 is made of silicone and is manufactured by spiral extrusion. The cross-sectional area ratio of the front plug segment 20 to the media segment 10 is 0.66 to 0.91:1. The media segment 10 is processed from tea leaves. The base structure segment 40 comprises a support segment 41, a cooling segment 42, and a filtration segment 43. During use, the aerosol generating device heats the medium segment 10 via the heating element 200 to generate an aerosol. The pressure generated by suction forces airflow through the peripheral air channel 100a formed between the walls of the air slot 20a and the wrapping layer 30, toward the medium segment 10. The aerosol generated by the medium segment 10 is extracted, passed through the support section 41 and the cooling section 42 of the base structure section 40, and then exits through the filtration section 43 for consumption by the user. After the suction is completed, the suction pressure applied by the user dissipates, and the front plug section 20 filters and absorbs the condensate formed by the aerosol, reducing the backflow of condensate into the aerosol generating device and preventing contamination of the aerosol generating device.

[0224] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations 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 a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0225] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An aerosol-generating article having a distal lip end and a proximal lip end, wherein: The aerosol-generating article comprises: a medium segment for generating aerosol; a front plug segment, disposed at one end of the medium segment and located at the distal lip end of the aerosol generating article; The wrapping layer is arranged around the periphery of the front plug segment and the medium segment and defines a peripheral air channel with the periphery of the front plug segment. The peripheral air channel is used for allowing external air flow to flow to the medium segment.

2. The aerosol-generating article according to claim 1, wherein The medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, and on a plane perpendicular to the first direction, the cross-section of the wrapping layer is circular, and the cross-section of the front plug segment is non-circular.

3. The aerosol-generating article according to claim 2, wherein On a plane perpendicular to the first direction, the cross-section of the front plug segment is in the shape of a polygon, a racetrack, a sector or an ellipse.

4. The aerosol-generating article according to claim 1 , wherein The medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, the side wall of the front plug segment is recessed to form an air groove, the air groove extends along the first direction, and the peripheral air channel is defined between the groove wall of the air groove and the wrapping layer.

5. The aerosol-generating article according to claim 4, wherein On a plane perpendicular to the first direction, the cross-section of the air groove is V-shaped, arc-shaped, rectangular or trapezoidal.

6. The aerosol-generating article according to claim 5, wherein On a plane perpendicular to the first direction, the cross-section of the air groove is V-shaped. There are multiple air grooves, and the air grooves are evenly distributed along the circumference of the front plug segment.

7. The aerosol-generating article according to claim 4, wherein The air groove extends linearly or spirally along the first direction.

8. The aerosol-generating article of claim 1 , wherein: The medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, and the ratio of the size of the front plug segment along the first direction to the size of the aerosol generating article along the first direction is in the range of 1 / 12 to 1 / 3.

9. The aerosol-generating article of claim 1 , wherein: The medium segment extends along a first direction, the front plug segment is arranged at one end of the medium segment along the first direction, and the ratio of the size of the front plug segment along the first direction to the size of the aerosol generating article along the first direction is in the range of 1 / 10 to 1 / 4.

10. The aerosol-generating article of claim 1, wherein The ratio of the cross-sectional area of the front plug segment to the cross-sectional area of the medium segment is in the range of 0.4 to 0.

95.

11. The aerosol-generating article of claim 1 , wherein: The ratio of the cross-sectional area of the front plug segment to the cross-sectional area of the medium segment is in the range of 0.65 to 0.

91.

12. The aerosol-generating article of claim 1 , wherein: The front plug section is a gathering-molding structure, an extrusion-molding structure or a casting-molding structure.

13. The aerosol-generating article of claim 1 , wherein: The material of the front plug section includes at least one of CA, PET, PLA, PC and PA.

14. The aerosol-generating article of claim 1 , wherein: The aerosol generating article further comprises a basic structure segment, which is arranged at one end of the medium segment away from the front plug segment, and the basic structure segment comprises at least one of a supporting segment, a filtering segment and a cooling segment.

15. The aerosol-generating article of claim 1 , wherein: The medium segment is an integral structure, and has at least one air hole inside the medium segment, and the air hole passes through at least one end of the medium segment.

16. An aerosol-generating article according to claim 15, wherein There are multiple pores, and the pores are distributed in a matrix on the end surface of the medium segment.

17. An aerosol-generating article according to claim 15, wherein The medium segment is provided with a heating hole along its axial extension, and the heating hole is used to avoid the heating element of the aerosol generating device. There are multiple air holes, and on the end surface of the medium segment, the multiple air holes are distributed in a ring shape around the heating hole.

18. An aerosol-generating article according to claim 17, wherein The heating hole is located at the center of the medium segment, and the hole wall of the heating hole is in contact with or spaced from the heating element.

19. The aerosol-generating article of claim 15, wherein The cross-section of the air hole is in the shape of a circle, a polygon, a star or an arc.

20. An aerosol-generating article according to any one of claims 1 to 19, wherein The front plug segment has an internal channel, and the internal channel runs through one end of the front plug segment away from the media segment and one end close to the media segment.

21. An aerosol-generating article according to claim 20, wherein The internal passage is used to avoid the heating element of the aerosol generating device so that the heating element can pass through the front plug segment and be inserted into the medium segment.

22. An aerosol-generating article according to claim 21, wherein The cross section of the internal channel is in the shape of a slit or a hole.

23. An aerosol generating system, wherein: The aerosol generating system comprises an aerosol generating device and the aerosol generating article according to any one of claims 1 to 22, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

24. An aerosol generating system according to claim 23, wherein The front plug segment has an internal channel, which runs through one end of the front plug segment away from the medium segment and one end close to the medium segment. The heating element is arranged in the internal channel, and at least part of the side wall of the internal channel is in contact with the peripheral wall of the heating element.

25. An aerosol generating system according to claim 23, wherein The front plug segment has an internal channel, which runs through one end of the front plug segment away from the medium segment and one end close to the medium segment. The heating element is arranged in the internal channel, and at least part of the side wall of the internal channel is set at a gap with the heating element.

26. An aerosol generating system according to claim 24 or 25, wherein The heating element passes through the internal channel and further extends into the heating hole of the medium section corresponding to the internal channel. The heating element is in contact with the inner wall of the heating hole or is provided with a gap therebetween.

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