Medium segment and aerosol-generating article having same

Abstract

Disclosed in the embodiments of the present application are a medium segment and an aerosol-generating article having same. The medium segment comprises a substrate and a protruding structure, wherein a heating hole extending in a first direction is formed inside the substrate, and the heating hole runs through at least one end of the substrate in the first direction; the protruding structure is arranged on a wall of the heating hole, and when a heating member of an aerosol-generating device extends into the heating hole, the protruding structure is located on an outer peripheral side of the heating member; and the heating member is used for heating the medium segment, and the protruding structure can break or deform after being heated. In the embodiments of the present application, the medium segment facilitates the removal of the aerosol-generating article from the aerosol-generating device, and can also ensure the heating efficiency of the medium segment.

Description

Medium segment and aerosol generating article with same

[0001] Cross-reference to Related Applications

[0002] The present disclosure is based on and claims priority from Chinese Patent Application No. 202411104626.7 filed on August 12, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of smoking articles, in particular to a medium segment and an aerosol generating article with the same. BACKGROUND

[0004] Smoking articles include aerosol generating articles that form aerosols by being ignited and aerosol generating articles that form aerosols by being heated without being combusted, wherein in a typical aerosol generating article that is heated without being combusted, a medium segment that can volatilize to generate an aerosol when heated is heated by an external heat source to just a degree sufficient to emit a desired component and flavor, and the medium segment does not burn but forms an aerosol by loading an atomizing agent and releasing the atomizing agent by high-temperature heating when used.

[0005] In related technologies, the medium segment deforms when heated, and in particular for a medium segment that is heated from the center, the deformation of the medium segment can cause the heating element to be locked, which makes it difficult to pull out the aerosol generating article. To solve this problem, the diameter of the heating hole of the medium segment is enlarged in existing solutions, so that the medium segment still has a gap with the heating element after deformation, thereby preventing the locking. However, in this structure, the distance between the inner wall of the medium segment and the heating element is relatively large, which results in low heating efficiency, a relatively slow generation rate of the aerosol by the medium segment, and a relatively small generation amount of the aerosol, thereby affecting the smoking experience. SUMMARY

[0006] In view of this, the embodiments of the present application aim to provide a medium segment and an aerosol generating article with the same, which facilitate the pulling out of the aerosol generating article from an aerosol generating device and at the same time facilitate the guarantee of the heating efficiency of the medium segment.

[0007] To achieve the above-mentioned purpose, the technical solutions of the embodiments of the present application are as follows:

[0008] In a first aspect, the embodiments of the present application provide a medium segment, comprising:

[0009] a base body, wherein the base body is internally provided with a heating hole extending in a first direction, and the heating hole penetrates through at least one end of the base body in the first direction;

[0010] A protruding structure is provided on a hole wall of the heating hole, and in a state where the heating member of the aerosol generating device extends into the heating hole, the protruding structure is located at an outer circumferential side of the heating member.

[0011] The heating member is used to heat the medium section, and the protruding structure can be broken or deformed after being heated.

[0012] In one embodiment, the protruding structure includes a first structure body having a connecting end and a fitting end, the connecting end is connected with the hole wall of the heating hole, and the fitting end extends towards the axis of the heating hole.

[0013] In one embodiment, the protruding structure includes at least two first structure bodies, and the fitting end of each first structure body is directly or indirectly connected.

[0014] In one embodiment, the extension direction of the first structure body is a second direction, the direction passing through the connecting end of the first structure body and the axis of the heating hole is a third direction, and the second direction is arranged at an angle with the third direction.

[0015] In one embodiment, the angle between the second direction and the third direction is 5°-30°.

[0016] In one embodiment, the protruding structure further includes a second structure body, and along the radial direction of the heating hole, the second structure body is spaced apart from the hole wall of the heating hole, and the second structure body is connected with the fitting end of at least two first structure bodies.

[0017] In one embodiment, in a cross section perpendicular to the first direction, the cross section of the second structure body is in an arc shape, a straight line shape or a broken line shape.

[0018] In one embodiment, along the radial direction of the heating hole, any one of the two first structure bodies extends towards the other in a direction in which the other is closer.

[0019] In one embodiment, the number of protruding structures is multiple, each protruding structure is spaced apart along the circumferential direction of the heating hole, and with the axis of the heating hole as a projection center, the projection of all connecting ends on the hole wall of the heating hole and the projection of all fitting ends on the hole wall of the heating hole are staggered along the circumferential direction of the heating hole.

[0020] In one embodiment, the protruding structure further includes a second structure body, the second structure body is provided on the first structure body, and along the radial direction of the heating hole, the second structure body is spaced apart from the hole wall of the heating hole.

[0021] In a cross section perpendicular to the first direction, the cross section of the second structure extends along a circumferential direction of the heating hole.

[0022] In one embodiment, the fitting end is located between opposite ends of the cross section of the second structure along a circumferential direction of the heating hole; and / or,

[0023] The extending direction of the first structure is a second direction, and the direction passing through the connecting end of the first structure and the axis of the heating hole is a third direction, and the second direction is parallel to the third direction.

[0024] In one embodiment, the protruding structure is in contact with the heating element, or there is a gap between the protruding structure and the heating element.

[0025] In one embodiment, the gap between the protruding structure and the heating element is 0.02mm-0.5mm along a radial direction of the heating hole.

[0026] In one embodiment, the number of protruding structures is multiple, and each protruding structure is spaced along a circumferential direction of the heating hole.

[0027] In one embodiment, in a cross section perpendicular to the first direction, the cross section of the protruding structure includes at least one of a straight line shape, a broken line shape, and a T shape; or, the cross section of the protruding structure is arc-shaped near one end of the protruding structure close to the axis of the heating hole.

[0028] In one embodiment, the protruding structure and the base body are integrally formed.

[0029] In one embodiment, the base body is internally provided with an air passage hole extending along the first direction, and the air passage hole passes through at least one end of the base body along the first direction.

[0030] In one embodiment, the number of air passage holes is multiple, and all the air passage holes are divided into multiple groups, each air passage hole in any group is spaced along a circumferential direction of the heating hole, and each group of air passage holes is spaced along a radial direction of the heating hole.

[0031] In a second aspect, the embodiments of the present application provide an aerosol generating article, which includes the medium segment of any of the above embodiments, and the medium segment is used to generate an aerosol.

[0032] In one embodiment, the aerosol generating article further includes a functional segment, and the functional segment includes a front plug segment, and the front plug segment is arranged at a distal lip end of the medium segment along the first direction.

[0033] The medium section of the embodiment of the present application comprises a base body and a protruding structure. The base body is internally provided with a heating hole, and the protruding structure is arranged on the hole wall of the heating hole. After the heating piece is inserted into the heating hole, the protruding structure is located on the outer circumferential side of the heating piece. In the process of heating the medium section by the heating piece, both the base body and the protruding structure are heated by the heating piece, wherein at least the base body can be heated and generate aerosol for the user to use. After the base body is heated and shrinks, the hole wall of the heating hole gradually approaches the heating piece, thereby extruding the protruding structure together with the heating piece. While the protruding structure is heated by the heating piece, it is also extruded by the base body and the heating piece, thereby deforming or breaking, so that the extrusion force between the whole medium section and the heating piece can be effectively released, reducing the probability that the medium section is heated and shrinks by the heating piece and is locked on the heating piece. Thus, it is convenient for the aerosol generating article to be pulled out of the aerosol generating device. At the same time, the gap between the hole wall of the heating hole and the heating piece is filled by the protruding structure, which is conducive to shortening the distance between the inner wall of the medium section and the heating piece, thereby being conducive to ensuring the heating efficiency of the medium section, and the aerosol generating article can relatively quickly generate aerosol in the use process, thereby being conducive to improving the user's smoking experience. BRIEF DESCRIPTION OF DRAWINGS

[0034] Fig. 1 is a schematic view of the cross-sectional structure of an aerosol generating article according to an embodiment of the present application;

[0035] Fig. 2 is a schematic view of the cooperation structure between a heating piece and a first embodiment of a medium section;

[0036] Fig. 3 is a schematic view of the cooperation structure between a heating piece and a second embodiment of a medium section;

[0037] Fig. 4 is a schematic view of the structure of a medium section according to a first embodiment of the present application;

[0038] Fig. 5 is a schematic view of the cross section of the medium section shown in Fig. 4;

[0039] Fig. 6 is a schematic view of the structure of a medium section according to a second embodiment of the present application;

[0040] Fig. 7 is a schematic view of the cross section of the medium section shown in Fig. 6;

[0041] Fig. 8 is a schematic view of the structure of a medium section according to a third embodiment of the present application;

[0042] Fig. 9 is a schematic view of the cross section of the medium section shown in Fig. 8;

[0043] Fig. 10 is a schematic view of the structure of a medium section according to a fourth embodiment of the present application;

[0044] Fig. 11 is a schematic view of the cross section of the medium section shown in Fig. 10;

[0045] Fig. 12 is a schematic view of the structure of a medium section according to a fifth embodiment of the present application;

[0046] Fig. 13 is a cross-sectional view of the media segment shown in Fig. 12;

[0047] Fig. 14 is a structural schematic view of a media segment of a sixth embodiment of the present application;

[0048] Fig. 15 is a cross-sectional view of the media segment shown in Fig. 14. DETAILED DESCRIPTION

[0049] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and therefore only serve as examples, and cannot be used to limit the protection scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0051] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification are not necessarily all referring to the same embodiment, or are necessarily mutually exclusive or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0053] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the technical terms "mount", "connect", "connect", "fix", and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0054] In the description of the embodiments of the present application, unless specifically defined and limited otherwise, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, which can be contact between two elements without interaction force, or contact between two elements with interaction force.

[0055] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0056] Please refer to FIG. 1, the present application provides an aerosol generating article, the aerosol generating article 100 comprises the medium segment 10 of any one of the embodiments of the present application, and the medium segment 10 is used for generating aerosol.

[0057] The medium segment 10 has a distal lip end 10b and a proximal lip end 10a. The proximal lip end 10a refers to the end of the medium segment 10 close to the user when the user uses the aerosol generating article 100, and the distal lip end 10b refers to the end of the medium segment 10 away from the user when the user uses the aerosol generating article 100.

[0058] The aerosol generating article 100 is used in cooperation with an aerosol generating device. Exemplarily, please refer to FIGS. 1 to 3, the aerosol generating device comprises a housing, a power supply assembly and a heating element 200, the housing has a receiving cavity, the heating element 200 is arranged in the receiving cavity, the power supply assembly is used for supplying electric energy to the heating element 200, and the heating element 200 converts the electric energy into heat energy. When the aerosol generating article 100 is inserted into the receiving cavity, the power supply assembly transmits electric energy to the heating element 200 in a contact or non-contact manner, the heating element 200 receives the energy from the power supply assembly to generate heat, and then heats the medium segment 10 and generates aerosol. It can be understood that, during the process of inserting the aerosol generating article 100 into the receiving cavity, the distal lip end 10b of the medium segment 10 enters the receiving cavity earlier than the proximal lip end 10a thereof.

[0059] The way in which the heating element 200 heats the medium segment 10 is not limited. Exemplarily, please refer to FIGS. 2 and 3, based on a center heating type aerosol generating device, the heating element 200 is inserted into the inside of the medium segment 10 and heats the medium segment 10.

[0060] Referring to FIGS. 1-15, the embodiments of the present application also provide a medium section, which includes a base body 11 and a convex structure 12.

[0061] The components of the base body 11 may, for example, include plant components, auxiliary components, smoke agent components, adhesive components, and the like.

[0062] In some embodiments, the plant components are one or more combinations of powders formed by crushing tobacco raw materials, tobacco fragments, tobacco stems, tobacco fines, and the like. The plant components are the core source of product flavors, and endogenous substances in the plant components, such as nicotine, enter the human blood through atomization, promote the pituitary gland to produce dopamine, and thus obtain a physiological satisfaction.

[0063] In some embodiments, the plant components can include one or more of tobacco, tea leaves, tea stems, dandelion, eucalyptus, clove, cassia, turmeric, fungus, insulin wood, astragalus, Chinese date kernel, horse bean, kudzu root, fennel, rosemary, star anise, honeysuckle, chrysanthemum, rose, marigold, mugwort, olive, ginseng, American ginseng, green beans, red beans, dried tangerine or orange peel, nut shells, lily, coffee, agarwood, mint, hawthorn, licorice, cocoa, agaric, lotus seed, lotus leaf, cooling ginger, fresh ginger, bitter buckwheat, and wheat bran. The mass fraction of the plant components in the aerosol matrix can be 20%-80% (including the end point values).

[0064] In some embodiments, the auxiliary components can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers can include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc powder, and diatomite. The inorganic fillers can provide skeletal support for the plant components, and the inorganic fillers also have micropores, which can increase the porosity of the wall material after the plant components are formed, thereby increasing the aerosol release rate.

[0065] The lubricants can include one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricants can increase the flowability of the particles, reduce the friction between the particles, make the overall density of the particle distribution more uniform, and reduce the pressure required for mold forming and the wear of the mold.

[0066] The emulsifier includes one or more of polyglycerin fatty acid ester, Tween-80, polyvinyl alcohol in combination. The emulsifier can slow down the loss of flavoring substances during storage to some extent, increase the stability of flavoring substances, and improve the sensory quality of the product. The emulsifier (also known as a surfactant) can reduce the interfacial tension between water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or a double electric layer on the surface of the droplets due to the charge given by the emulsifier, preventing the droplets from aggregating with each other and maintaining a uniform emulsion. The emulsification of two incompatible components can improve the consistency of product quality.

[0067] The function of the smoking agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking article. In some embodiments, the smoking agent may, for example, include one or more of monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyhydric alcohols (such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate); monocarboxylic acids; polycarboxylic acids (such as lauric acid, myristic acid), or fatty esters of polycarboxylic acids (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, glycerol diacetate mixture, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanillate, glycerol tributyrate, lauryl acetate).

[0068] The function of the smoking agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking article. In some embodiments, the smoking agent may, for example, include one or more of monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyhydric alcohols (such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate); monocarboxylic acids; polycarboxylic acids (such as lauric acid, myristic acid), or fatty esters of polycarboxylic acids (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, glycerol diacetate mixture, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanillate, glycerol tributyrate, lauryl acetate).

[0069] In some embodiments, the adhesive component is a natural plant extract, a non-ionic modified adhesive polysaccharide, including one or more of tamarind polysaccharide, pullulan, fucoidan, locust bean gum, guar gum, xyloglucan. The adhesive is in close contact with the interface wetting of the component materials of the product, generating intermolecular attraction, thereby playing a role in bonding the powders, liquids, etc. of the component materials. At the same time, the selection of natural plant extracts, non-ionic adhesive can avoid the release of harmful substances such as methanol, formaldehyde, and propylene aldehyde caused by colloid modification, and improve the safety of the product.

[0070] The base body 11 and the protruding structure 12 can be an integrally formed structure, for example, formed by an extrusion process, at which time the composition of the protruding structure 12 is consistent with that of the base body 11, and the heating element 200 heats the base body 11 and the protruding structure 12 to generate an aerosol.

[0071] Alternatively, the base body 11 and the protruding structure 12 can also be a split structure. At this time, the composition of the protruding structure 12 can also be different from that of the base body 11.

[0072] The base body 11 is internally provided with a heating hole 11a extending in a first direction. Exemplarily, the first direction is indicated by L1 in FIG. 1, FIG. 4, FIG. 6, FIG. 8, FIG. 10, FIG. 12 or FIG. 14.

[0073] The heating hole 11a penetrates at least one end of the base body 11 in the first direction. That is, the heating hole 11a can be a blind hole penetrating only one end of the base body 11 in the first direction, or a through hole penetrating opposite ends of the base body 11 in the first direction.

[0074] Referring to FIG. 2 and FIG. 3, the protruding structure 12 is provided on the hole wall of the heating hole 11a, and is located at the outer circumferential side of the heating element 200 in a state where the heating element 200 of the aerosol generating device extends into the heating hole 11a. That is, there is a gap between the heating element 200 and the side wall of the heating hole 11a.

[0075] The protruding structure 12 is located at the outer circumferential side of the heating element 200, that is, the hole wall of the heating hole 11a surrounds the outer circumference of the heating element 200.

[0076] The shape of the heating element 200 is not limited. For example, it can be cylindrical, sheet-shaped, needle-shaped, etc. When the heating element 200 is cylindrical, the protruding structure is located radially outward of the heating element 200.

[0077] The heating element 200 is used to heat the medium section 10, and the protruding structure 12 can be broken or deformed after being heated. Specifically, the protruding structure 12 is broken or deformed in a state of being heated by the heating element 200 and being pressed by the base body 11 and the heating element 200.

[0078] The deformation of the protruding structure 12 means that the shape of the protruding structure 12 changes, but it still maintains a connection relationship with the base body 11.

[0079] The breaking of the protruding structure 12 means that the whole protruding structure 12 falls off from the base body 11; or the protruding structure 12 is broken into multiple parts, one of which has neither a direct connection relationship nor an indirect connection relationship with the base body 11.

[0080] It can be understood that during the heating of the medium section 10 by the heating element 200, both the base body 11 and the protruding structure 12 are heated by the heating element 200. The base body 11 shrinks under the action of the heating element 200, and the hole wall of the heating hole 11a gradually approaches the heating element 200, thereby pressing the protruding structure 12 together with the heating element 200. The protruding structure 12 is deformed or broken under the pressing action of the base body 11 and the heating element 200 after being heated, so that the pressing force between the medium section 10 as a whole and the heating element 200 can be released, thereby facilitating the pulling out of the aerosol generating article 100 from the aerosol generating device.

[0081] It should be noted that the protruding structure 12 can become soft after being heated by the heating element 200, so as to facilitate the breaking or deformation of the protruding structure 12.

[0082] In the related art, in the process of cooperating with the aerosol generating article, the heating element of the center heating type aerosol generating device needs to be inserted into the inside of the medium section. The contraction of the medium section can cause the heating element to be locked, which makes the aerosol generating article difficult to pull out. In order to solve this problem, the existing solution is to enlarge the diameter of the heating hole of the medium section. After the medium section is deformed due to contraction, there is still a gap between the heating element and the medium section to prevent locking. However, the medium section with such a structure has a long distance between the inner wall of the medium section and the heating element, which results in low heating efficiency, relatively slow generation rate and relatively small generation amount of aerosol by the medium section, and affects the smoking experience.

[0083] The medium section of the present application includes a base body 11 and a protruding structure 12. The inside of the base body 11 is provided with a heating hole 11a, and the protruding structure 12 is arranged on the hole wall of the heating hole 11a. After the heating element 200 is inserted into the heating hole 11a, the protruding structure 12 is located on the outer circumferential side of the heating element 200. In the process of heating the medium section 10, both the base body 11 and the protruding structure 12 are heated by the heating element 200, and at least the base body 11 can be heated and generate aerosol for the user to use. After the base body 11 is heated and shrinks, the hole wall of the heating hole 11a gradually approaches the heating element 200, thereby pressing the protruding structure 12 together with the heating element 200. The protruding structure 12 is heated by the heating element 200 and is also pressed by the base body 11 and the heating element 200, thereby deforming or breaking, so that the extrusion force between the medium section 10 and the heating element 200 can be effectively released, reducing the probability of the medium section 10 being heated and shrunk by the heating element 200 and being locked on the heating element 200. Thus, the aerosol generating article 100 is facilitated to be pulled out of the aerosol generating device. At the same time, the gap between the hole wall of the heating hole 11a and the heating element 200 is filled by the protruding structure 12, which is conducive to shortening the distance between the inner wall of the medium section 10 and the heating element 200, thereby facilitating to ensure the heating efficiency of the medium section 10. In the process of use, the aerosol generating article 100 can relatively quickly generate aerosol, thereby facilitating to improve the smoking experience of the user.

[0084] In some embodiments, in the state that the heating element 200 is inserted into the heating hole 11a, the protruding structure 12 can be in direct contact with the heating element 200, so that heat can be transmitted to the base body 11 through the protruding structure 12. The heat conduction efficiency of the protruding structure 12 is higher than that of air, thereby facilitating to generate aerosol quickly.

[0085] In some other embodiments, the protruding structure 12 can not be in contact with the heating element 200 when the heating element 200 is inserted into the heating hole 11a, i.e., the protruding structure 12 and the heating element 200 are spaced apart along the radial direction of the heating hole 11a. In this way, the heating element 200 can be inserted into the heating hole 11a with relatively small resistance, which facilitates the insertion of the heating element 200 into the heating hole 11a.

[0086] Referring to FIG. 1, in some embodiments, the aerosol generating article 100 further includes a functional segment 20, which includes a front plug segment 21 arranged at the distal end 10b of the medium segment 10 along the first direction.

[0087] The front plug segment 21 can be made of a high molecular material such as PLA (Polylactic acid), PET (Polyethylene glycol terephthalate), CA (Cellulose acetate), or the like.

[0088] By arranging the front plug segment 21 at the distal end 10b of the medium segment 10, on the one hand, after the protruding structure 12 is broken, the debris formed after the breakage can be blocked by the front plug segment 21, which is conducive to reducing the probability of the debris remaining in the accommodation cavity of the aerosol generating device. On the other hand, when the aerosol generating article 100 is pulled out, the front plug segment 21 can push the medium segment 10 to move away from the accommodation cavity, thereby facilitating the separation of the medium segment 10 and the heating element 200, i.e., facilitating the pulling out of the aerosol generating article 100 from the accommodation cavity of the aerosol generating device.

[0089] In addition, the front plug segment 21 can effectively avoid the problem that the condensed aerosol flows downward and remains in the accommodation cavity of the aerosol generating device, causing internal pollution of the accommodation cavity and being difficult to clean. In addition, different flavors of aerosol generating articles 100 can cause cross-contamination problems.

[0090] In some embodiments, the functional segment 20 further includes at least one of a support segment 22, a filter segment 24, and a cooling segment 23.

[0091] Specifically, as shown in FIG. 1, the support segment 22 is arranged at one end of the medium segment 10 away from the front plug segment 21 along the first direction, one end of the cooling segment 23 is arranged at one end of the support segment 22 away from the medium segment 10 along the first direction, and the filter segment 24 is arranged at the other end of the cooling segment 23. The support segment 22 can connect and support the medium segment 10 and the cooling segment 23 at both ends. The cooling segment 23 is used to reduce the temperature of the aerosol, so that the temperature of the aerosol flowing out of the filter segment 24 is appropriate, and the problem of “burning mouth” of the aerosol can be avoided.

[0092] Of course, the positions of the support section 22 and the cooling section 23 can also be exchanged, i.e. the cooling section 23 is connected to the medium section 10 at the end away from the front plug section 21, and the two ends of the support section 22 are connected to the other end of the cooling section 23 and the filter section 24, respectively.

[0093] The structure of the support section 22 is not limited. For example, it can be a hollow paper tube structure or a hollow aluminum foil tube structure. The hollow paper tube structure or the hollow aluminum foil tube structure has good heat resistance and is not easily deformed by heat. After receiving heat conduction, it can still maintain its shape and increase the structural stability of the aerosol generating article 100. Of course, it can also be a hollow acetate tube structure, a hollow aluminum foil paper tube structure, a hollow silica gel structure, etc.

[0094] The cooling section 23 can be one of a hollow paper tube, an acetate tube, or an aluminum foil tube, for example. That is, the cooling section 23 is formed in a porous structure inside. When the airflow carrying the aerosol passes through the cooling section 23, a Venturi effect occurs, i.e. the flow rate of the fluid increases when passing through a reduced flow cross section, and the flow rate is inversely proportional to the flow cross section. The aerosol can pass through the cooling section 23 relatively quickly, so that the aerosol can be extracted relatively quickly. The cooling section 23 has a large specific surface area, which can achieve rapid cooling of the aerosol.

[0095] Of course, the cooling section 23 can also be one of a hollow paper tube, a hollow acetate, or a corrugated paper tube.

[0096] As shown in FIG. 1, in some embodiments, the aerosol generating article 100 further includes an outer wrapping layer 30 surrounding the outer periphery of the medium section 10.

[0097] The outer wrapping layer 30 has a certain hardness and can protect the medium section 10 to some extent. It reduces the surface area of the medium section 10 exposed directly to the outside, thereby reducing the risk of the medium section 10 being dampened and deteriorated by contact with air, and reducing the risk of the medium section 10 being contaminated by contact with other components in the aerosol generating device.

[0098] It should be noted that the medium section 10 and the outer wrapping layer 30 can be an integrated structure. That is, the medium section 10 and the outer wrapping layer 30 are different parts of one whole structure. In this way, on the one hand, the relative position of the medium section 10 and the outer wrapping layer 30 is fixed, which can reduce the risk of the medium section 10 and the outer wrapping layer 30 being separated due to factors such as temperature changes and vibrations during use of the aerosol generating article 100. On the other hand, the medium section 10 and the outer wrapping layer 30 can be prepared synchronously, thereby reducing the manufacturing steps and improving the production efficiency.

[0099] For example, the integrated structure of the medium section and the outer wrapping layer 30 is formed by a co-extrusion process.

[0100] Of course, the medium segment 10 and the outer wrapper 30 can also be a split structure.

[0101] The specific material of the outer wrapper 30 is not limited, for example, one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly(butylene adipate-co-terephthalate), and the like.

[0102] The outer wrapper 30 also wraps the outer periphery of the functional segment 20. For example, in the embodiment in which the functional segment 20 includes the front plug segment 21, since the front plug segment 21 is disposed at the distal lip end 10b of the medium segment 10, the front plug segment 21 can effectively reduce the probability of the medium segment 10 falling out of the outer wrapper 30 during use of the aerosol generating article 100.

[0103] It should be noted that the functional segment 20, the medium segment 10, and the outer wrapper 30 can also be a one-piece structure.

[0104] It should be noted that when the outer wrapper 30 wraps the entire circumferential outer surface of the filter segment 24, the user can directly hold the outer wrapper 30 in the mouth to use the aerosol. When the outer wrapper 30 wraps part of the circumferential outer surface of the filter segment 24, the user can directly hold the part of the filter segment 24 exposed outside the outer wrapper 30 in the mouth to smoke the aerosol. Of course, the user can also wrap a mouthpiece around the filter segment 24 to smoke the aerosol through the mouthpiece.

[0105] It should be noted that the outer wrapper 30 can be one layer, i.e., one layer of the outer wrapper 30 simultaneously wraps the medium segment 10 and the functional segment 20.

[0106] Of course, the outer wrapper 30 can also be multiple layers. Any one of the medium segment 10, the front plug segment 21, the support segment 22, the cooling segment 23, and the filter segment 24 can be wrapped by at least one layer of the outer wrapper 30 to obtain a multi-segment structure after being wrapped respectively; or at least two of the medium segment 10, the front plug segment 21, the support segment 22, the cooling segment 23, and the filter segment 24 are wrapped by at least one layer of the outer wrapper 30 to obtain a multi-segment structure after being wrapped respectively. The multi-segment structure is then wrapped by one or more layers of the outer wrapper 30 to obtain the aerosol generating article 100.

[0107] The manner in which the protruding structure 12 cooperates with the heating element 200 is not limited. In some embodiments, as shown in FIG. 2, the protruding structure 12 is in contact with the heating element 200. In this way, the heating element 200 can directly transfer heat to the medium segment 10, thereby facilitating an increase in the generation rate and the generation amount of the aerosol of the aerosol generating article 100.

[0108] In some other embodiments, as shown in FIG. 3, the protruding structure 12 has a gap with the heating element 200. On one hand, the gap is conducive to controlling the heat received by the medium segment 10 within a proper range, thereby facilitating reduction of the probability of the medium segment 10 being burnt, even the occurrence of a bright fire phenomenon, and the medium segment 10 being more unlikely to be bonded to the heating element 200 after use of the aerosol generating article 100, and facilitating reduction of the generation of carbon deposition; on the other hand, the gap is also conducive to reducing the resistance received by the aerosol generating article 100 when inserted into the accommodating cavity.

[0109] It should be noted that the size of the gap between the protruding structure 12 and the heating element 200 is not limited. Exemplarily, as shown in FIG. 3, the gap D1 between the protruding structure 12 and the heating element 200 is 0.02mm-0.5mm along the radial direction of the heating hole 11a. For example, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.12mm, 0.14mm, 0.16mm, 0.18mm, 0.2mm, 0.23mm, 0.26mm, 0.29mm, 0.3mm, 0.34mm, 0.38mm, 0.4mm, 0.45mm, 0.5mm, and the like.

[0110] In the embodiment, the gap between the protruding structure 12 and the heating element 200 is reasonable. On one hand, the protruding structure 12 has a certain gap with the heating element 200, thereby facilitating control of the heat received by the medium segment 10 within a proper range, and facilitating reduction of the resistance received by the aerosol generating article 100 when inserted into the accommodating cavity; on the other hand, the gap between the protruding structure 12 and the heating element 200 is not too large, thereby facilitating guarantee of the generation rate and the generation amount of the aerosol of the aerosol generating article 100, and thereby facilitating guarantee of the taste during smoking by the user.

[0111] The number of the protruding structure 12 is not limited. In some embodiments, the number of the protruding structure 12 is multiple, and each protruding structure 12 is distributed at intervals along the circumferential direction of the heating hole 11a.

[0112] It should be noted that the multiple in the embodiments of the present application refers to any number of two or more.

[0113] By arranging a plurality of protruding structures 12, the protruding structures 12 are evenly spaced along the circumference of the heating hole 11a, and the protruding structures 12 jointly limit the position of the heating element 200 in the heating hole 11a. In particular, after arranging at least three protruding structures 12, the radial swinging of the heating element 200 along the heating hole 11a will not directly contact the hole wall of the heating hole 11a, that is, the heating element 200 can form a gap along the circumference between the hole wall of the heating hole 11a, and in the process of heating, the medium section 10 utilizes the gap and deforms or breaks the protruding structure 12, thereby further reducing the possibility of the medium section 10 being stuck to the heating element 200.

[0114] In other embodiments, the protruding structure 12 can also have only one.

[0115] In some embodiments, the protruding structure 12 includes a first structure body 121, the first structure body 121 has a connecting end 121a and a matching end 121b, the connecting end 121a is connected to the hole wall of the heating hole 11a, and the matching end 121b extends towards the axis of the heating hole 11a. In the state of being heated by the heating element 200 and being pressed by the base body 11 and the heating element 200, the first structure body 121 deforms or breaks.

[0116] The number of first structure bodies 121 of one protruding structure 12 is not limited. In some embodiments, referring to FIGS. 4 and 5, one protruding structure 12 includes one first structure body 121. In this embodiment, the first structure body 121 is not restricted by other structures when deforming or breaking, thereby facilitating the deformation or breaking of the protruding structure 12, so as to release the pressing force between the medium section 10 and the heating element 200.

[0117] In other embodiments, referring to FIGS. 6-9 and 12-15, one protruding structure 12 includes at least two first structure bodies 121, and the matching ends 121b of the first structure bodies 121 are directly or indirectly connected.

[0118] In this embodiment, the connecting position of one protruding structure 12 to the hole wall of the heating hole 11a is at least two, thereby relatively increasing the connecting strength of the protruding structure 12 to the hole wall of the heating hole 11a, so as to facilitate the extrusion forming of the protruding structure 12.

[0119] It should be noted that in the production process of the medium section 10, the medium strip is generally obtained by continuously extruding the extruder, and the length of the medium strip is relatively large, and therefore, the medium strip needs to be cut by a cutting device to obtain the medium section 10 with a proper size. In this embodiment, the connecting strength of the protruding structure 12 to the base body 11 is relatively high, thereby reducing the probability of the protruding structure 12 breaking in the process of cutting the medium strip, that is, facilitating the improvement of the yield of the medium section 10.

[0120] Specifically, in some embodiments, as shown in FIG. 14 and FIG. 15, the two mating ends 121b of the two first structures 121 are directly connected. It should be noted that the protruding structure 12 in this structure is roughly triangular in the cross section of the protruding structure 12 and the area surrounded by the hole wall of the heating hole 11a in the plane perpendicular to the first direction. The stability of the triangle is relatively high, and the stability of the protruding structure 12 is relatively good during the slitting process of the medium strip, thereby facilitating the improvement of the yield of the medium segment 10.

[0121] Further, based on the protruding structure 12 of this embodiment, as shown in FIG. 15, in one protruding structure 12, the connection positions of the two mating ends 121b are located between the two connecting ends 121a along the circumference of the heating hole 11a. Since the heat radiation generated by the heating element 200 is roughly divergent along the radial direction of the heating element 200, in this embodiment, the hole wall of the heating hole 11a can well receive heat radiation in other areas except the area between the connecting ends 121a of the two first structures 121, and the two first structures 121 can also well receive heat radiation, that is, heat can be uniformly radiated on the inner surface of the medium segment 10, thereby improving the heating area of the medium segment 10, thereby facilitating the improvement of the generation rate and the generation amount of aerosol of the medium segment 10.

[0122] In other embodiments, as shown in FIG. 6 to FIG. 9, FIG. 12 and FIG. 13, the two mating ends 121b of the two first structures 121 are indirectly connected.

[0123] In some embodiments, the extension direction of the first structure 121 is the second direction. Exemplarily, the second direction is the direction indicated by L2 in FIG. 5. It should be noted that when determining the second direction, the side wall of the first structure 121 along one side of the heating hole 11a can be taken as the reference, that is, the second direction is parallel to the side wall.

[0124] The direction through the connecting end 121a of the first structure 121 and the axis of the heating hole 11a is the third direction. Exemplarily, the third direction is the direction indicated by L3 in FIG. 5. That is, the third direction is the radial direction of the heating hole 11a through the connecting end 121a of the first structure 121.

[0125] It can be understood that in the process of shrinking the medium segment 10, the first structure 121 is approaching the heating element 200 along the third direction, that is, the extrusion force formed by the base body 11 and the heating element 200 on the first structure 121 is parallel to the third direction during the shrinking process of the medium segment 10.

[0126] The second direction and the third direction are arranged at an angle. It should be noted that the plane in which the second direction and the third direction are located is perpendicular to the first direction. The extrusion force formed by the base body 11 and the heating element 200 on the first structure 121 is at an angle with the extension direction of the first structure 121, and the first structure 121 is more likely to produce a deflection deformation relative to the connecting end 121a under the action of the extrusion force, that is, the first structure 121 is facilitated to produce a deformation, thereby effectively preventing the medium section 10 from being locked on the heating element 200.

[0127] In addition, in the present embodiment, the stress generated in the first structure 121 during the contraction process is relatively small, and the first structure 121 is more likely to deform rather than break, that is, it is less likely to produce debris, and after the aerosol generating article 100 is used up and pulled out of the accommodating cavity of the aerosol generating device, the cleanliness of the accommodating cavity is better.

[0128] In some embodiments, the angle between the second direction and the third direction is 5° to 30°. Exemplarily, the angle between the second direction and the third direction is shown as α in FIG. 5, for example, 5°, 6°, 7°, 8°, 9°, 10°, 12°, 14°, 16°, 18°, 20°, 25°, 30°, and the like.

[0129] It can be understood that if α is too small, the first structure 121 is relatively difficult to produce a tilting deformation, thereby possibly causing the first structure 121 to be locked on the heating element 200; and if α is too large, if the medium section 10 includes a plurality of protruding structures 12, the two adjacent first structures 121 after tilting deformation can be overlapped together, thereby reducing the contraction space of the base body 11, that is, it can also cause the medium section 10 to be locked on the heating element 200, and at the same time, on the same circle with the axis of the heating hole 11a as the center, the extension length of the first structure 121 is also relatively large, thereby reducing the number of protruding structures 12, and it is also not convenient to design the mold of the medium section 10.

[0130] It is more reasonable for the value of α to be in the range of 5° to 30°. On the one hand, it is convenient for the first structure 121 to produce a tilting deformation along the circumference of the heating hole 11a, thereby reducing the probability of the first structure 121 being extruded and locked on the heating element 200; on the other hand, it is convenient to design a reasonable number of protruding structures 12, and it is also convenient to design the mold of the medium section 10, and after the first structure 121 produces a tilting deformation, it is beneficial to reduce the probability of the adjacent first structures 121 being overlapped, thereby reducing the probability of the medium section 10 being locked on the heating element 200.

[0131] In some embodiments, referring to FIGS. 6-9, 12 and 13, the protruding structure 12 further comprises a second structure 122, which is spaced apart from the hole wall of the heating hole 11a along the radial direction of the heating hole 11a, and which is connected with the fitting end 121b of at least two first structures 121. That is, the fitting ends 121b of the two first structures 121 are indirectly connected.

[0132] Compared with the embodiment in which the fitting ends 121b of the two first structures 121 are directly connected, in the embodiment, the stress generated in the protruding structure 12 after being extruded during the heating and shrinking of the medium section 10 by the heating member 200 is relatively small, and the protruding structure 12 is more likely to deform, thereby facilitating the reduction of the probability of the medium section 10 being stuck on the heating member 200.

[0133] It should be noted that in the embodiment, the extension direction of any first structure 121 of the protruding structure 12 can be arranged at an angle with the third direction corresponding to the first structure 121. For example, referring to FIGS. 6 and 7, the extension direction of each of the two first structures 121 is arranged at an angle with the third direction corresponding to the first structure 121, and both of the two first structures 121 deflect in the same direction along the circumferential direction of the heating hole 11a. When the medium section 10 is heated and shrunk by the heating member 200, the base body 11 and the heating member 200 extrude the protruding structure 12, and the stress generated in the protruding structure 12 after being extruded is relatively small. The two first structures 121 of the protruding structure 12 can deflect and deform in the same direction along the circumferential direction of the heating hole 11a, and are not likely to be stacked together, thereby facilitating the further reduction of the probability of the medium section 10 being stuck on the heating member 200.

[0134] It should be noted that the specific angle of the angle between the extension direction of the two first structures 121 and the third direction corresponding to the first structure 121 can be the same or different. Specifically, the angle between the extension direction of any first structure 121 and the third direction corresponding to the first structure 121 can be kept within the range of 5°-30°.

[0135] In some embodiments, the shape of the section of the second structure 122 is arc-shaped, straight-line-shaped or broken-line-shaped in the section perpendicular to the first direction.

[0136] For example, as shown in FIGS. 12 and 13, the shape of the section of the second structure 122 is arc-shaped. The protruding structure 12 of the embodiment has a relatively simple structure, and is convenient for extrusion molding.

[0137] For example, as shown in FIGS. 6-9, the shape of the section of the second structure 122 is straight-line-shaped. That is, in the plane perpendicular to the first direction, the section of the protruding structure 12 and the region enclosed by the hole wall of the heating hole 11a are substantially quadrangular.

[0138] The shape of the cross section of the second structure 122 is a broken line shape. That is, in a plane perpendicular to the first direction, the cross section of the protruding structure 12 and the area surrounded by the hole wall of the heating hole 11a are substantially a pentagon or a polygon with more than five sides.

[0139] In some embodiments, referring to FIGS. 8 and 9, along the radial direction of the heating hole 11a, any one of the two first structures 121 extends towards the other in a direction of approaching the other. Specifically, the opposite ends of the second structure 122 are connected to the fitting ends 121b of the two first structures 121, respectively.

[0140] In the present embodiment, the two fitting ends 121b are located between the two connecting ends 121a, that is, the second structure 122 is also located between the two connecting ends 121a. Since the heat radiation generated by the heating element 200 is substantially divergent along the radial direction of the heating element 200, in the present embodiment, the hole wall of the heating hole 11a can better receive heat radiation in the area other than the area between the connecting ends 121a of the two first structures 121, and the two first structures 121 and the second structure 122 can also better receive heat radiation, that is, heat can be more uniformly radiated on the inner surface of the medium section 10, thereby increasing the heating area of the medium section 10, which is conducive to improving the generation rate and the generation amount of aerosol of the medium section 10.

[0141] In some embodiments, referring to FIGS. 4 and 5, the number of protruding structures 12 is a plurality, and each protruding structure 12 is spaced apart along the circumferential direction of the heating hole 11a. With the axis of the heating hole 11a as the projection center, the projections of all the connecting ends 121a on the hole wall of the heating hole 11a and the projections of all the fitting ends 121b on the hole wall of the heating hole 11a are staggered along the circumferential direction of the heating hole 11a.

[0142] That is, along the same direction of the circumferential direction of the heating hole 11a, each first structure 121 generates a deflection relative to its corresponding third direction. Taking the medium section 10 shown in FIG. 5 as an example, in the perspective shown in the figure, each first structure 121 extends along the radial direction passing through its corresponding connecting end 121a, and at the same time generates a deflection in the counterclockwise direction. When the medium section 10 is heated and shrunk by the heating element 200, the substrate 11 and the heating element 200 press the first structures 121, and after being pressed, the first structures 121 generate relatively small stress inside, and can all deflect and deform in the counterclockwise direction of the heating hole 11a, and are not easy to stack together, thereby facilitating further reducing the probability of the medium section 10 being stuck on the heating element 200.

[0143] In some embodiments, referring to FIGS. 10 and 11, the protruding structure 12 further comprises a second structure 122, which is arranged on the first structure 121 and is spaced apart from the hole wall of the heating hole 11a along the radial direction of the heating hole 11a. In a cross section in a plane perpendicular to the first direction, the cross section of the second structure 122 extends along the circumferential direction of the heating hole 11a.

[0144] In this embodiment, by arranging the second structure 122, the contact area between the protruding structure 12 and the heating element 200 is increased during the contraction of the medium section 10, so that the heating element 200 and the base 11 can better extrude the protruding structure 12, thereby causing the protruding structure 12 to deform or break.

[0145] In some embodiments, referring to FIGS. 10 and 11, the fitting end 121b of the first structure 121 is located between the opposite ends of the cross section of the second structure 122 along the circumferential direction of the heating hole 11a.

[0146] The extrusion force between the base 11 and the heating element 200 on the protruding structure 12 acts on the second structure 122, the fitting end 121b of the first structure 121 acts as the fulcrum of the second structure 122, and the opposite ends of the second structure 122 are mutually restrained, so as to facilitate the transmission of the extrusion force to the first structure 121, thereby facilitating the deformation or breakage of the first structure 121.

[0147] In some embodiments, referring to FIGS. 10 and 11, the extension direction of the first structure 121 is the second direction, and the direction passing through the connecting end 121a of the first structure 121 and the axis of the heating hole 11a is the third direction, and the second direction is parallel to the third direction.

[0148] In this embodiment, the extrusion force between the base 11 and the heating element 200 on the protruding structure 12 is parallel to the extension direction of the first structure 121 during the heating and contraction of the medium section 10 by the heating element 200, and the stress generated inside the protruding structure 12 is relatively large under the action of the extrusion force, thereby facilitating the breakage and deformation of the first structure 121.

[0149] In some embodiments, in a cross section in a plane perpendicular to the first direction, the cross section of the protruding structure 12 comprises at least one of a straight line shape, a broken line shape, and a T shape.

[0150] For example, referring to FIGS. 4 to 5, the cross section of the protruding structure 12 is in a straight line shape. That is, the protruding structure 12 comprises a first structure 121.

[0151] Exemplarily, the cross section of the convex structure 12 is in the shape of a broken line. That is, the cross section of the convex structure 12 and the area surrounded by the hole wall of the heating hole 11a are approximately in the shape of a polygon. For example, the approximately quadrangular structure shown in FIGS. 6-9, or the approximately triangular structure shown in FIGS. 14 and 15.

[0152] Exemplarily, referring to FIGS. 10 and 11, the cross section of the convex structure 12 is in the shape of a T.

[0153] In other embodiments, referring to FIGS. 12 and 13, the cross section of the convex structure 12 is in the shape of an arc near one end of the heating hole 11a.

[0154] In some embodiments, referring to FIGS. 1-3, the base body 11 is internally provided with an air channel hole 11b extending in the first direction, and the air channel hole 11b passes through at least one end of the base body 11 in the first direction.

[0155] The air channel hole 11b passes through at least one end of the base body 11 in the first direction. That is, the air channel hole 11b can pass through only one end of the base body 11 in the first direction to form a blind hole, or can pass through opposite ends of the base body 11 in the first direction to form a through hole.

[0156] The atomized medium in the base body 11 is heated and released by the heating element 200 to release aerosol, and is collected through the gap between the wall materials or the micro air channel and enters the air channel hole 11b. The aerosol released by the atomized medium exposed to the air channel hole 11b (i.e., the atomized medium on the inner wall surface of the air channel hole 11b) can be directly released to the air channel hole 11b, and the aerosol between adjacent air channel holes 11b can also flow through the micro air channel and be transported to the suction end under the action of the suction negative pressure.

[0157] The shape of the air channel hole 11b is not limited. In some embodiments, the cross section of the air channel hole 11b is in the shape of a circle, a polygon, a star, or an arc.

[0158] The circular air channel hole 11b can improve the lateral support strength of the medium section 10 and improve the reprocessing performance of the medium section 10.

[0159] The specific shape of the polygon is not limited. For example, it can be a rhombus, and the rhombic air channel hole 11b can improve the lateral cutting performance of the medium section 10 and reduce the deformation phenomenon caused by cutting during the processing of the medium section 10.

[0160] Of course, it can also be a regular hexagon, and the regular hexagonal air channel hole 11b can more uniformly divide the cross section of the middle part of the medium section 10.

[0161] The star-shaped or arc-shaped air channel hole 11b can also facilitate the release of aerosol by the medium section 10.

[0162] The number of air passage holes 11b can be one or more. It should be noted that the plurality in the embodiments of the present application refers to two or more.

[0163] It should be noted that when the number of air passage holes 11b is more than one, the cross sections of the air passage holes 11b can be the same or different.

[0164] Specifically, the distribution of the plurality of air passage holes 11b of the base body 11 is not limited. For example, as shown in FIG. 2, in some embodiments, all the air passage holes 11b are divided into multiple groups, the air passage holes 11b in any group are distributed along the circumference of the heating hole 11a, and the air passage holes 11b of each group are arranged along the radial direction of the heating hole 11a.

[0165] That is to say, on the cross section of the medium section 10, the air passage holes 11b in each group are arranged to form a ring structure, and the centers of the ring structures formed by the air passage holes 11b of each group overlap with the center of the heating hole 11a.

[0166] In the embodiments, the air passage holes 11b are relatively uniformly distributed on the outer periphery of the heating hole 11a, so that the generated aerosol can be sufficiently and uniformly released, and the user can relatively uniformly inhale the aerosol.

[0167] Further, the heating hole 11a is located at the center of the base body 11, that is, the axis of the heating hole 11a coincides with the axis of the base body 11, so that the heat can be uniformly diffused from the center of the base body 11 to the outer peripheral wall of the base body 11, and the base body 11 is heated more uniformly as a whole.

[0168] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or the conveying section or all the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A medium segment, comprising: a base body, the base body being internally provided with a heating hole extending along a first direction, the heating hole penetrating through at least one end of the base body along the first direction; a protruding structure provided on a hole wall of the heating hole, the protruding structure being located at an outer circumferential side of a heating element of an aerosol generating device in a state where the heating element extends into the heating hole; the heating element being used to heat the medium segment, the protruding structure being capable of being broken or deformed after being heated.

2. The media segment of claim 1, wherein, the protruding structure comprises a first structure body, the first structure body having a connecting end and a matching end, the connecting end being connected with the hole wall of the heating hole, and the matching end extending towards an axis of the heating hole.

3. The media segment of claim 2, wherein, the protruding structure comprises at least two first structure bodies, the matching end of each first structure body being directly connected or indirectly connected.

4. The media section of claim 2 or 3, wherein, an extending direction of the first structure body is a second direction, a direction passing through the connecting end of the first structure body and the axis of the heating hole is a third direction, and the second direction is arranged at an angle with the third direction.

5. The media segment of claim 4, wherein, the angle between the second direction and the third direction is 5°-30°.

6. The media segment of claim 3, wherein, the protruding structure further comprises a second structure body, the second structure body being spaced apart from the hole wall of the heating hole along a radial direction of the heating hole, and the second structure body being connected with the matching end of at least two first structure bodies.

7. The media segment of claim 6, wherein, in a cross section perpendicular to the first direction, a cross section of the second structure body is in an arc shape, a straight line shape or a broken line shape.

8. The media segment of claim 3 or 6, wherein, any one of the two first structure bodies extends towards the other one along a direction of approaching inwardly along the radial direction of the heating hole.

9. The media segment of claim 2 or 6, wherein, the number of the protruding structures is multiple, each protruding structure is spaced apart along a circumferential direction of the heating hole, and projections of all the connecting ends on the hole wall of the heating hole and projections of all the matching ends on the hole wall of the heating hole are staggered along the circumferential direction of the heating hole with the axis of the heating hole as a projection center.

10. The media segment of claim 2, wherein, the protruding structure further comprises a second structure body, the second structure body being provided on the first structure body and being spaced apart from the hole wall of the heating hole along a radial direction of the heating hole; in a cross section in a plane perpendicular to the first direction, a cross section of the second structure body extends along the circumferential direction of the heating hole.

11. The media segment of claim 10, wherein, along the circumferential direction of the heating hole, the matching end is located between opposite ends of the cross section of the second structure body; and / or an extending direction of the first structure body is a second direction, a direction passing through the connecting end of the first structure body and the axis of the heating hole is a third direction, and the second direction is parallel to the third direction.

12. The media segment of claim 1, wherein, the protruding structure is in contact with the heating element, or there is a gap between the protruding structure and the heating element.

13. The media segment of claim 1, wherein, along the radial direction of the heating hole, the gap between the protruding structure and the heating element is 0.02mm-0.5mm.

14. The media segment of claim 1, wherein, the number of the protruding structures is multiple, and each protruding structure is spaced apart along the circumferential direction of the heating hole.

15. The media segment of claim 1, wherein, In a cross section in a plane perpendicular to the first direction, the cross section of the protruding structure comprises at least one of a straight line shape, a broken line shape and a T shape; or, the cross section of the protruding structure is arc-shaped near an end of the protruding structure close to the axis of the heating hole.

16. The media segment of claim 1, wherein, The protruding structure and the base body are integrally formed.

17. The media segment of claim 1, wherein, The base body is internally provided with an air passage hole extending along the first direction, the air passage hole penetrating through at least one end of the base body along the first direction.

18. The media segment of claim 17, wherein, The number of the air passage holes is multiple, all the air passage holes are divided into multiple groups, the air passage holes in any one group are distributed along the circumferential direction of the heating hole, and the air passage holes in each group are arranged along the radial direction of the heating hole.

19. An aerosol generating article comprising the medium segment of any one of claims 1-18, the medium segment being used to generate an aerosol.

20. An aerosol-generating article according to claim 19, wherein, The aerosol generating article further comprises a functional segment, the functional segment comprising a front plug segment, the front plug segment being arranged at a distal lip end of the medium segment along the first direction.

Images