Aerosol generating product and aerosol generating system

Abstract

The invention provides an aerosol generating product and an aerosol generating system. The aerosol generating product comprises a medium section and a coating layer. At least one first air channel hole is formed in the medium section, and the first air channel hole penetrates through at least one end, in the first direction, of the medium section. The coating layer at least coats at least one end of the dielectric section along the first direction. According to the aerosol generating product and the aerosol generating system, the wrapping layer is arranged on the medium section of the aerosol generating product, and the wrapping layer at least wraps the at least one end of the medium section in the first direction. On one hand, the situation that aerosol overflows from the bottom of the medium section is reduced, so that the situation that the aerosol pollutes the containing bin is improved, and then the cleaning problem of the containing bin is improved. And on the other hand, the medium section can be prevented from falling into the containing bin due to heating shrinkage, and the cleaning problem of the containing bin can be further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smoking articles, in particular to an aerosol-generating article and an aerosol-generating system. BACKGROUND

[0002] The smoking article includes a smoking article that forms an aerosol by ignition and a smoking article that forms an aerosol by heating without combustion, wherein in a typical smoking article that heats without combustion, an aerosol-generating substrate that volatilizes upon heating to generate an aerosol and a functional segment that cooperates with the aerosol-generating substrate to achieve suction of the aerosol are included, the aerosol-generating substrate is heated by an external heat source to just a sufficient degree to emit a flavor, and the aerosol-generating substrate does not burn but is loaded with an atomizing agent, and the atomizing agent is released by heating at a high temperature during use to form smoke.

[0003] In the related art, the aerosol generated by the aerosol-generating substrate is mainly carried into the heating cavity by airflow passing through the area where the aerosol-generating substrate is located, which causes pollution of the heating cavity and affects the smoking taste, and there is a risk that the substrate will fall into the heating cavity during use, reducing the user's experience. SUMMARY

[0004] Therefore, the present application aims to provide an aerosol-generating article and an aerosol-generating system that improve the user's experience.

[0005] The first aspect of the present application provides an aerosol-generating article, which comprises:

[0006] A medium segment, an inside of the medium segment being provided with at least one first air passage hole, the first air passage hole passing through at least one end of the medium segment in a first direction;

[0007] A cladding layer, the cladding layer at least cladding at least one end of the medium segment in the first direction.

[0008] In some embodiments, the cladding layer comprises a first cladding part and a second cladding part, the second cladding part being connected to a circumferential side wall of the first cladding part, the first cladding part cladding one end of the medium segment in the first direction, and the second cladding part cladding a circumferential outside of the medium segment.

[0009] In some embodiments, the first cladding part is provided with at least one first through hole, the first through hole penetrating both ends of the first cladding part in the first direction and communicating with the first air passage hole.

[0010] In some embodiments, when projected onto a plane perpendicular to the first direction, at least a portion of the projection of the first through-hole is not located within the projection range of the first airway hole.

[0011] In some embodiments, the first through hole and the first air passage hole are offset on a plane perpendicular to the first direction.

[0012] In some embodiments, the aerosol generating article further includes a functional segment disposed at one end of the medium segment along a first direction, the functional segment having a flow channel communicating with the first air passage hole; the coating layer further includes a third coating portion covering the circumferential exterior of the functional segment.

[0013] In some embodiments, the second covering portion and the third covering portion are integrally formed.

[0014] In some embodiments, the third covering portion is provided with at least one second through hole, the second through hole penetrating the circumferential sidewall of the third covering portion and communicating with the flow channel.

[0015] In some embodiments, the sum of the flow cross-sectional areas of each of the first vias is less than or equal to half the sum of the flow cross-sectional areas of each of the second vias.

[0016] In some embodiments, the sum of the flow cross-sectional areas of each of the first vias is greater than or equal to twice the sum of the flow cross-sectional areas of each of the second vias.

[0017] In some embodiments, the cross-sectional shape of the medium segment in a plane perpendicular to the first direction is at least one of a circle, an ellipse, a racetrack shape, a polygon, and a sector.

[0018] A second aspect of this application provides an aerosol generation system, the aerosol generation system comprising an aerosol generation device and an aerosol generation article as described in any one of the preceding claims, the aerosol generation device comprising a heating element for heating the medium section to generate aerosol.

[0019] This application provides an aerosol generating article and an aerosol generating system. By providing a coating layer in the medium section of the aerosol generating article, the coating layer covers at least one end of the medium section along a first direction. On the one hand, this helps reduce the overflow of aerosols from the bottom of the medium section, thereby improving the situation of aerosol contamination of the containment chamber and thus improving the cleanliness of the containment chamber; on the other hand, it can prevent the medium section from falling into the containment chamber due to heating and shrinkage, further improving the cleanliness of the containment chamber. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application;

[0021] Figure 2 This is a cross-sectional view of an aerosol-generating article according to an embodiment of this application;

[0022] Figure 3 This is a cross-sectional view of an aerosol-generating article according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the first via hole in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the first via hole in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the first via hole in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the first via hole in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the first via hole in an embodiment of this application.

[0028] Figure Labels

[0029] 100. Aerosol generating product; 1. Medium section; 11. First air passage; 2. Coating layer; 21. First coating part; 211. First through hole; 22. Second coating part; 23. Third coating part; 231. Second through hole; 3. Functional section; 31. Support section; 311. Flow channel; 32. Filter section. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0031] In the description of this application, the "first direction" orientation or positional relationship is based on the appendix. Figure 2 and attached Figure 3 The directions or positional relationships shown, among which, are attached Figure 2 and attached Figure 3 The unidirectional arrows in the text indicate the airflow direction. It should be understood that these directional terms are for the convenience of describing this application and simplifying the description only, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] This application provides an aerosol generation system, which includes an aerosol generation device and an aerosol generation product. The aerosol generation device includes a heating element for heating a medium section to generate aerosols.

[0033] The aerosol generating device includes a housing and a power supply component disposed within the housing. The housing has a receiving chamber, and the power output section of the power supply component is disposed within the receiving chamber or around the side wall of the receiving chamber. When the aerosol generating article is inserted into the receiving chamber at a location corresponding to the first direction range where the medium section is located, the power output section transmits electrical energy to the heating component in a contact or non-contact manner. The heating component receives energy from the outside and generates heat, thereby heating the medium section and generating aerosol.

[0034] This application provides an aerosol generating article 100; please refer to [link / reference]. Figures 1 to 3 The aerosol-generating article 100 includes a medium segment 1 and a coating layer 2. The medium segment 1 has at least one first air passage 11 inside, the first air passage 11 passing through at least one end of the medium segment 1 along a first direction. The coating layer 2 covers at least one end of the medium segment 1 along the first direction.

[0035] The length of the aerosol generating article 100 is not limited here. In some embodiments, the length of the aerosol generating article 100 along the first direction is greater than or equal to 10 mm and less than or equal to 70 mm. For example, it can be 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, etc.

[0036] It is understandable that the length of the aerosol generating product 100 should not be too long to facilitate user carrying, nor should it be too short to result in a short medium section in the aerosol generating product 100, which would affect the aerosol generating effect.

[0037] Medium segment 1 is used to generate an aerosol upon heating for user suction. The specific structure of medium segment 1 is not limited here. For example, medium segment 1 can be circular, elliptical, square, etc.

[0038] The length of the medium segment 1 along the first direction is not limited here. In some embodiments, the length of the medium segment 1 is greater than or equal to 10 mm and less than or equal to 70 mm. For example, it can be 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, etc.

[0039] Understandably, the length of medium segment 1 should not be too long to facilitate user carrying, nor too short to affect the aerosol generation effect.

[0040] The aerosol generating article 100 provided in this application embodiment has a one-piece structure in its medium segment 1. For example, it can be formed into a one-piece structure by extrusion, die casting or injection molding process to improve the uniformity of the density of the medium segment 1 and improve the stability of aerosol release and suction.

[0041] Extrusion molding here refers to a processing method in which a mixture of raw materials is added to an extruder, and the material is pushed forward by the screw through the extruder barrel and screw, continuously passing through the die at the extruder outlet to form products or semi-finished products of various cross-sections. The media structure formed by extrusion molding is strip-shaped. In this way, the media in section 1 remains a single unit after being heated and drawn in or after heating stops, and it is not easy for it to disintegrate and fall off. This solves the problems of thin sheet, filament, or loose particle media section 1, such as loose sheet, filament, granular components falling off, difficulty in cleaning, and uneven composition.

[0042] Furthermore, the integrated medium segment 1 has a relatively uniform mass, and when the heating component heats the medium segment 1, it does not compress the surrounding structure, thus maintaining a relatively uniform matrix density. Moreover, the integrated medium segment 1 is less prone to adhesion or clumping with the aerosol generating device. In summary, the medium segment 1 in this embodiment has a simple structure, simplifying the structural design and process flow of the aerosol generating product 100 and reducing production costs.

[0043] The specific components of medium segment 1 are not limited here. For example, medium segment 1 may include plant components, auxiliary components, smoke-generating components, adhesive components, and fragrance components, etc.

[0044] Plant-based ingredients are used to generate aerosols upon heating. Additive ingredients provide skeletal support for the plant-based ingredients. Smoke-generating ingredients produce smoke upon heating. Binder ingredients bind the various raw material components together. Flavoring ingredients provide characteristic aromas. Thus, the plant-based and smoke-generating ingredients ensure sufficient aerosol generation, while the flavoring ingredients enhance aroma release during inhalation, improving the user experience. Additive ingredients not only improve the flowability of the mixture but also create a porous structure in media section 1, facilitating aerosol extraction and flow. The binder ingredients ensure a stable mixture of plant-based and additive ingredients, preventing a loose structure.

[0045] For example, the plant-based ingredients can be one or more of the following: raw tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants, which are powdered after being crushed. The plant-based ingredients are the core source of the aroma, and the endogenous substances within them can provide users with a sense of physiological satisfaction. Endogenous substances, such as alkaloids, enter the bloodstream and promote the pituitary gland to produce dopamine, thereby achieving physiological satisfaction.

[0046] For example, the auxiliary components can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers provide skeletal support for the plant components and also have micropores, which can increase the porosity of medium section 1, thereby increasing 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 flowability of the plant component powder, reduce the friction between the plant component powders, make the overall density of the plant component powder distribution more uniform, and also reduce the pressure required for extrusion molding, 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 down the loss of aroma substances during storage, increase the stability of aroma substances, and improve the sensory quality of the product.

[0047] For example, the smoke-generating agent may include one or more combinations of: monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, glycerol, triethylene glycol, 1,3-butanediol, and tetraethylene glycol); esters of polyhydric alcohols (such as triacetin, triethyl citrate, mixtures of diacetins, triethyl citrate, methylbenzyl benzoate, and triglyceride); monocarboxylic acids; dicarboxylic acids; polycarboxylic acids (such as lauric acid and myristic acid) or aliphatic esters of polycarboxylic acids (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triacetin, mesoerythritol, mixtures of diacetins, diethyl octanoate, triethyl citrate, methylbenzyl benzoate, phenylacetic acid, ethyl vanillate, triglyceride, and lauryl acetate).

[0048] For example, the adhesive component achieves close contact with the component raw materials through wetting at the interface, generating intermolecular attraction, thereby binding the component raw materials, such as powders and liquids. The adhesive component can be one or more combinations of natural plant extracts, non-ionic modified viscous polysaccharides, including tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bind particles together, preventing them from easily falling apart, and also improves the water resistance of media segment 1, and is harmless to the human body.

[0049] For example, flavoring ingredients are used to provide characteristic aromas, such as hay, roasted sweetness, or solid or liquid substances of nicotine. Flavoring ingredients may include one or more combinations of tobacco or other plants, aromatic plant extracts, extracts, essential oils, and absolutes; flavoring ingredients may include one or more combinations of monomeric aroma substances, such as megastigmatrienone, neophytadiene, geraniol, nerol, etc.

[0050] The interior of medium section 1 has at least one first air passage 11, see [link / reference]. Figure 2 or Figure 3 The first airway hole 11 passes through at least one end of the medium section 1 along the first direction.

[0051] The interior of the medium section 1 has at least one first airway hole 11. The medium section 1 may have one first airway hole 11 or multiple first airway holes 11.

[0052] It should be noted that the "multiple" mentioned in the embodiments of this application refers to two or more.

[0053] In some embodiments, the first airway 11 penetrates one end of the medium section 1 along the first direction, while the other end is closed.

[0054] In other embodiments, a portion of the first airway hole 11 penetrates one end of the medium segment 1 along the first direction, and another portion of the first airway hole 11 penetrates the other end of the medium segment 1 along the first direction.

[0055] In some other embodiments, please refer to Figure 2 Each first air passage 11 penetrates both ends of the medium segment 1 along a first direction, meaning the first air passage 11 extends along the first direction of the medium segment 1, allowing airflow to flow from one end of the medium segment 1 through the first air passage 11 to the other end. Preferably, the first air passage 11 is parallel to the central axis of the medium segment 1.

[0056] It should be noted that the first airway pore 11 mentioned above is a pore in a macroscopic sense, while the micropore is a pore in a microscopic sense. The cross-sectional area of ​​the first airway pore 11 is much larger than that of the micropore. The size of the micropore is determined by the gap between particles.

[0057] It should be noted that the shape of the first air passage 11 is not limited here. For example, on a plane perpendicular to the first direction of the medium segment 1, the cross-sectional shape of the first air passage 11 may include, but is not limited to, a circle, an ellipse, a racetrack shape or a polygon, wherein the polygon includes regular or irregular polygons.

[0058] Among them, the track shape refers to a shape similar to an athletic track, which is formed by two semicircles and two parallel straight sides connected alternately.

[0059] The cross-sectional shape of the first airway hole 11 refers to the cross-sectional shape of the first airway hole 11 obtained by cutting along a plane perpendicular to the first direction of the medium segment 1.

[0060] In addition, the cross-sectional shape of each first airway hole 11 can be exactly the same, or at least two of the first airway holes 11 can have different cross-sectional shapes. For example, at least one of the first airway holes 11 can have a circular cross-sectional shape, and at least one of the first airway holes 11 can have a polygonal cross-sectional shape.

[0061] The coating layer 2 provides a certain degree of protection for the medium section 1, reducing the surface area of ​​the medium section 1 directly exposed to the outside world, thereby reducing the probability of the medium section 1 becoming damp and deteriorating due to contact with air. At the same time, it reduces the probability of the medium section 1 coming into contact with other components in the aerosol generating device and causing pollution.

[0062] The coating layer 2 covers at least one end of the medium segment 1 along the first direction. Due to the design of the first air passage 11 and the good heating effect in the receiving chamber, fine particles are most likely to detach from the medium segment 1 during heating, or easily fall into the receiving chamber due to the shrinkage of the medium segment 1 caused by heating. Furthermore, aerosols generated during heating can easily overflow into the receiving chamber from this point, causing contamination. By setting the coating layer 2 here, the end of the medium segment 1 most prone to fine particle generation during heating is connected to the receiving chamber, reducing the possibility of fine particles falling into the receiving chamber. At the same time, the blocking effect of the coating layer 2 guides the aerosols out of the first air passage 11, reducing the amount of aerosols flowing out from one end of the medium segment 1 into the receiving chamber and contaminating the receiving chamber.

[0063] It should be noted that the dielectric segment 1 and the coating layer 2 can be an integral structure. That is, the dielectric segment 1 and the coating layer 2 are different parts of a single structure. In this way, on the one hand, the relative position of the dielectric segment 1 and the coating layer 2 is fixed, which can reduce the probability of the dielectric segment 1 and the coating layer 2 separating due to factors such as temperature changes and vibration during the use of the aerosol-generated product 100; on the other hand, the dielectric segment 1 and the coating layer 2 can be prepared simultaneously, thereby reducing manufacturing steps and improving production efficiency.

[0064] For example, the integrated structure of the medium segment 1 and the coating layer 2 is formed together by an extrusion process.

[0065] Of course, the dielectric segment 1 and the covering layer 2 can also be a separate structure.

[0066] The material of the covering layer 2 is not limited here; for example, it can be aluminum foil, paper, etc.

[0067] This application provides an aerosol generating article 100 and an aerosol generating system. By providing a coating layer 21 to the medium section 1 of the aerosol generating article 100, the coating layer 21 covers at least one end of the medium section 1 along a first direction. On the one hand, this helps to reduce the overflow of aerosols from the bottom of the medium section 1, thereby improving the situation of aerosol contamination of the container and thus improving the cleanliness of the container; on the other hand, it can prevent the medium section 1 from falling into the container due to heating and shrinkage, further improving the cleanliness of the container.

[0068] In some embodiments, please refer to Figures 1 to 3 The coating layer 2 includes a first coating portion 21 and a second coating portion 22. The second coating portion 22 is connected to the circumferential sidewall of the first coating portion 21. The first coating portion 21 covers one end of the medium segment 1 along the first direction, and the second coating portion 22 covers the circumferential outside of the medium segment 1.

[0069] The second covering part 22 is disposed on the circumferential sidewall of the first covering part 21. The first covering part 21 covers one end of the medium segment 1 along the first direction, and the second covering part 22 covers the circumferential exterior of the medium segment 1. That is, the second covering part 22 and the first covering part 21 together form a semi-closed cavity into which the medium segment 1 extends. The covering layer 2, composed of the first covering part 21 and the second covering part 22, protects the medium segment 1. In this way, the fine substances generated by the medium segment 1 during heating are constrained by the cavity formed by the covering layer 2, so that the fine substances retain their original shape of the medium segment 1 as much as possible and do not peel off, but remain connected to the medium segment 1 in an integral form. Even if the fine substances peel off, they will fall into the cavity defined by the covering layer 2, and the container can be cleaned simply by removing the covering layer. On the other hand, the cavity defined by the covering layer 2 also constrains the aerosols generated during heating, making it difficult for them to flow into the container and cause contamination.

[0070] The specific size of the first covering portion 21 is determined based on the size of one end of the medium segment 1 in the first direction. The first covering portion 21 needs to be larger than one end of the medium segment 1 in the first direction, so as to block fine substances. The size of the second covering portion 22 is determined based on the circumferential size of the first covering portion 21.

[0071] In some embodiments, to improve the covering effect of the covering layer 2, the first covering portion 21 is slightly larger than one end along the first direction of the medium segment 1, so that the two covering portions can be tightly attached to the circumferential outside of the medium segment 1, thereby improving the wrapping effect of the covering layer 2 on the medium segment 1.

[0072] Here, the coating layer 2 and the medium segment 1 can be separate structures. The cavity formed by the coating layer 2 and the medium segment 1 can be clearance-fitted, for example, the coating layer 2 and the medium segment 1 can be connected by edible glue. Alternatively, the cavity formed by the coating layer 2 and the medium segment 1 can be interference-fitted, for example, the coating layer 2 and its cavity can be processed first, and the medium segment 1 can be formed by filling the cavity with extrusion material.

[0073] Of course, the coating layer 2 and the medium section 1 can be an integral structure, formed together by the extrusion process.

[0074] In some embodiments, the second covering portion 22 may be slightly longer than the axial length of the medium segment 1, and when the aerosol product is in use, the covering layer 2 is exposed to the outside of the aerosol generating device. Thus, all the medium segments 1 are contained within the cavity defined by the covering layer 2, isolating all the medium segments 1 from the containing chamber and minimizing the impact of fine substances and aerosols on the containing chamber. Simultaneously, when removing the aerosol product, especially after heating, the force can be applied to the covering layer 2, reducing the possibility of the medium segment 1 breaking under stress.

[0075] It should be noted that, since the first covering layer 212 and the second covering layer 222 need to be in contact with the medium section 1 and the containment chamber, and need to transfer the heat of the containment chamber to the medium section 1, the first covering layer 212 and the second covering layer 222 need to be made of materials with good thermal conductivity and heat resistance, such as aluminum foil.

[0076] By providing a second covering part 22, which is disposed on the circumferential sidewall of the first covering part 21, the first covering part 21 covers one end of the medium segment 1 along the first direction, and the second covering part 22 covers the circumferential exterior of the medium segment 1. The second covering part 22 and the first covering part 21 together form a semi-closed cavity into which the medium segment 1 extends. The covering layer 2 formed by the first covering part 21 and the second covering part 22 protects the medium segment 1, reducing contamination of the containment chamber by fine substances and aerosols when the medium segment 1 is heated.

[0077] In some embodiments, please refer to Figures 1 to 8 The first covering part 21 is provided with at least one first through hole 211, which penetrates both ends of the first covering part 21 along the first direction and communicates with the first airway hole 11.

[0078] The first through hole 211 is a hole structure that passes through both ends of the first covering part 21 along the first direction. When the suction resistance is large, the first through hole 211 can be provided on the first covering part 21. The first through hole is connected to the first air passage 11, so that more gas from the outside can enter the first air passage hole 11 through the first through hole 211, thereby reducing the suction resistance.

[0079] Here, the first through-hole 211 is a small-diameter hole. The first through-hole 211 allows gas to pass freely, but the fine particles generated by heating in the medium section 1 have difficulty passing through the first through-hole 211. In this way, while increasing the gas throughput of the first gas passage 11, it also reduces the possibility of fine particles falling into the containment chamber.

[0080] It should be noted that the aperture here refers to the equivalent diameter, which is the diameter of a circle with the same cross-sectional area as the object being measured.

[0081] The cross-sectional shape of the first via 211 is not limited here; for example, it can be circular, rhomboid, elliptical, racetrack-shaped, etc.

[0082] The number and arrangement of the first vias 211 are not limited here, and are specifically determined according to the actual aerosol generation product 100 suction resistance.

[0083] In some embodiments, please refer to Figure 4 Multiple circular first through holes 211 are evenly provided in the first covering part 21.

[0084] In some embodiments, please refer to Figure 5 Multiple racetrack-shaped first through holes 211 are evenly provided in the first covering part 21.

[0085] In some embodiments, please refer to Figure 6 Multiple circular first through holes 211 are uniformly arranged in the first covering part 21, and the area of ​​the first through holes gradually changes along the arrangement direction.

[0086] In some embodiments, please refer to Figure 7 Two sets of first through holes 211 are evenly arranged in the first covering part 21. Each set of first through holes 211 consists of multiple circular first through holes 211 evenly distributed to form a rhomboid through hole group.

[0087] In some embodiments, please refer to Figure 8 Multiple sets of staggered circular first through holes 211 are evenly provided in the first covering part 21.

[0088] By providing a first through hole 211 on the first covering part 21, which is connected to the first air passage hole 11, external gas can enter the first air passage hole 11 through the first through hole 211, which helps to reduce the suction resistance when the aerosol-generated product 100 is drawn in. At the same time, the diameter of the first through hole 211 is limited to a certain range, which facilitates the inflow of gas while making it difficult for fine substances generated by heating in the medium section 1 to pass through the first through hole 211, thus helping to keep the containment chamber clean.

[0089] In some embodiments, please refer to Figures 1 to 3When projected onto a plane perpendicular to the first direction, at least part of the projection of the first through hole 211 is not located within the projection range of the first air passage hole 11.

[0090] Because the surface area of ​​the medium section 1 in contact with the outside is large at the first through-hole 211, it is easier and faster to heat up and generate fine substances. When the substances peel off, it is difficult for them to pass through the first through-hole 211 into the receiving chamber. However, the accumulation of too many fine substances will cause blockage of the first through-hole 211, thereby increasing the suction resistance of the aerosol generating product 100.

[0091] At least a portion of the projection of the first through-hole 211 is not located within the projection range of the first air passage 11. Therefore, this portion of the first through-hole 211, which is outside the projection range of the first air passage 11, is unlikely to be blocked by fine material peeling off from the first direction. Even when the other first through-holes 211 are blocked, this portion of the through-hole can still allow gas to pass through, entering the first air passage 11 from the gap between the medium section 1 and the first covering part 21. This reduces the possibility of excessive suction resistance preventing suction, resulting in a simple and effective structure.

[0092] In some embodiments, please refer to Figures 1 to 3 On a plane perpendicular to the first direction, the first through hole 211 is offset from the first air passage hole 11.

[0093] Generally, the cross-sectional area of ​​the first through-hole 211 is smaller than that of the first air passage 11. This "misalignment" means that on a plane perpendicular to the first direction, the projection of the first through-hole 211 is not completely covered by the projection of the first air passage 11. In other words, the fine particles generated by heating the medium section 1 fall along the first direction, and the falling area is the projection area of ​​the first air passage 11 in the first direction. Since the fine particles cannot completely cover the first through-hole 211, it is difficult for the first through-hole 211 to be completely blocked by the fine particles; a portion of the first through-hole 211 that is not blocked by the fine particles can always allow gas to flow.

[0094] The form of the offset is not limited here. For example, it can be partially offset, that is, on a plane perpendicular to the first direction, the projection of the first through hole 211 and the projection of the first air passage 11 intersect, but the projection of the first air passage 11 is not completely contained within the projection of the first air passage 11. It can also be completely offset, that is, on a plane perpendicular to the first direction, the projection of the first through hole 211 and the projection of the first air passage 11 do not intersect. In this way, the probability of fine substances generated by heating the medium section 1 falling and blocking the first through hole 211 is minimized.

[0095] By setting the first through hole 211 and the first air passage hole 11 separately on a plane perpendicular to the first direction, it is beneficial that the fine substances generated by heating the medium section 1 do not completely block the first through hole 211 after falling along the first direction, and there are still some gaps to allow gas to flow. This is beneficial for controlling the suction resistance when using aerosol-generated products 100 for a long time.

[0096] In some embodiments, please refer to Figures 1 to 3 The aerosol generating product 100 also includes a functional section 3, which is disposed at one end of the medium section 1 along the first direction. The functional section 3 has a flow channel 311, which is connected to the first air passage 11. The coating layer 2 also includes a third coating part 23, which covers the circumferential outside of the functional section 3.

[0097] It should be noted that the aerosol generating product 100 generates aerosols by relying on the aerosol generating matrix, while functional segment 3 does not generate aerosols.

[0098] Functional segment 3 is connected to one end of media segment 1 and has one or more functions; the specific types of functions are not limited here. Generally speaking, functional segment 3 may include functions such as cooling, adjusting suction resistance, and filtration.

[0099] The ratio of the length of the medium segment 1 in the first direction to the length of the functional segment 3 in the first direction (length of medium segment 1 / length of functional segment 3) is greater than or equal to 1 / 20 and less than or equal to 10. Within this range, the length of the functional segment is moderate, which is beneficial for reducing the condensation of aerosols on the functional segment 3 and for cooling the aerosols.

[0100] The flow channel 311 is a cavity in functional section 3 for supplying aerosol flow. By controlling the flow of aerosol, such as temperature or flow rate, the function of functional section 3 can be realized.

[0101] In some embodiments, by changing the length of the flow channel 311 in the first direction, the residence time of the aerosol in the flow channel 311 is increased, allowing more heat to be transferred to the outside, thereby cooling the aerosol and improving the "burning" sensation when the user inhales the aerosol. In other embodiments, the cooling effect of the aerosol is improved by incorporating high-performance materials into the functional segment 3.

[0102] In some embodiments, an airflow guide or airflow obstruction structure is added to the flow channel 311 to reduce or increase suction resistance. The specific guide or obstruction structure is not limited here.

[0103] In some embodiments, functional segment 3 may further include a support segment 31, which has a certain structural strength and provides a limiting effect on the aerosol generating article 100 along its axial direction (i.e., the first direction). The support segment 31 may also define a flow channel 311. At the same time, the length of the aerosol generating article 100 can be increased by increasing the length of the support segment 31 in the first direction, making it easier for the user to hold.

[0104] In some embodiments, functional segment 3 may further include a filter segment 32 for filtering aerosols.

[0105] The location of the filter section 32 is not limited here. It only needs to be set on the path where the aerosol flows out of the aerosol-generated product 100, so that the aerosol can be filtered through the filter section 32.

[0106] For example, please refer to Figure 2 Functional segment 3 is provided with a filter segment 32 and a support segment 31 along the first direction, and the support segment 31 defines a flow channel 311. The end of the support segment 31 away from the filter segment 32 is connected to the medium segment 1, so that the filter segment is close to the aerosol suction port.

[0107] For example, please refer to Figure 3 Alternatively, the end of the filter section 32 away from the flow channel 311 can be connected to the medium section 1, so that the filter section is closer to the medium section 1 and the flow channel is closer to the aerosol suction port.

[0108] Here, the filter section 32 can be connected to the end face of the support section 31. Alternatively, the filter section 32 can be disposed within the cavity defined by the support section 31. In this case, the remaining cavity defined by the support section 31 is the flow channel 311. Furthermore, the connection here can refer to a tight connection or a spaced connection through other components, such as being covered by the covering layer 2, with the functional cavity and the medium section 1 connected at intervals.

[0109] The material and structure of the filter section 32 are not limited here. For example, it can be a hollow cellulose acetate structure or a solid cellulose acetate structure to filter and cool aerosols.

[0110] In some embodiments, the medium section 1 and the functional section 3 are both integral structures. The functional section 3 is an integral structure with a flow channel 311. For example, the integral structure of the functional section 3 is formed by any one or a combination of materials such as inorganic materials such as calcium carbonate, alumina, diatomaceous earth, and calcined kaolin, food-grade silicone, microcrystalline cellulose, konjac gum, starch, and plant polysaccharides, as well as polymers such as LDPE (low-density polyethylene), PP (polypropylene), TPE (thermoplastic elastomer), PLA (polylactic acid), TPE-modified PP, and TPE-modified PE (polyethylene). This integral structure of the functional section 3 improves the high-temperature resistance of the functional section 3, thereby improving the structural stability of the functional section 3. It is not easy to deform and melt after being heated. To a certain extent, it can improve the situation of releasing impurities, affecting the suction resistance, and blocking the air passage, thereby improving the user's experience.

[0111] In some embodiments, the media segment 1 and the functional segment 3 are separate structures, and can be quickly disassembled and assembled. This allows for the replacement of different functional segments 3 to meet the needs of different users. Furthermore, this quick-assembly and disassembly configuration enables the functional segment 3 to be recycled, reducing waste.

[0112] The third covering part 23 covers the circumferential exterior of the functional section 3, protecting the connection between the functional section 3 and the medium section 1, while reducing external contamination of the aerosol generating product 100.

[0113] By setting up functional section 3, which is connected to medium section 1 through third covering part 23, and the flow channel 311 on functional section 3 is connected to first air passage hole 11, the aerosol generated on medium section 1 can enter functional section 3 and perform functions such as cooling, filtration and suction resistance adjustment through functional section 3. The suction experience of aerosol generation product 100 can be adjusted simply by changing the structure of functional section 3. The structure is simple and helps to reduce costs.

[0114] In some embodiments, please refer to Figures 1 to 3 The second covering part 22 and the third covering part 23 are integrally formed.

[0115] In some embodiments, the third covering portion 23 extends along one side of the first direction, and the first covering portion 21, the second covering portion 22, and the third covering portion 23 completely cover the circumferential portions of the medium segment 1 and the functional segment 3, as well as one end of the medium segment 1. That is, the aerosol generating article 100 has only one end face without the covering layer 2, which can be understood as the suction outlet left by the aerosol generating article 100 for aerosols.

[0116] By making the second covering part 22 and the third covering part 23 integrally molded, there is no connection gap between the second covering part 22 and the third covering part 23. Thus, the first covering part 21, the second covering part 22 and the third covering part 23 together form a large cavity to accommodate the medium section 1 and the functional section 3. In this way, the fine substances generated by heating the medium section 1 are all contained in this large cavity, and the aerosol is also left from the suction outlet under the constraint of this cavity, which helps to improve the cleanliness of the containment chamber.

[0117] In some embodiments, please refer to Figures 1 to 3 The third covering part 23 is provided with at least one second through hole 231, which penetrates the circumferential sidewall of the third covering part 23 and communicates with the flow channel 311.

[0118] The second through-hole 231 penetrates the circumferential sidewall of the third covering part 23 and communicates with the flow channel 311, meaning that the second through-hole 231 also penetrates the functional section 3. The cross-sectional shape of the second through-hole 231 is not limited here; for example, it can be circular, rhomboid, elliptical, racetrack-shaped, etc.

[0119] The number of second vias 231 is not limited here, and is determined according to the design size of the suction resistance.

[0120] The location of the second via 231 is not limited here. In some embodiments, in the first direction, the distance between the second via 231 and the end face of the medium section 1 is greater than or equal to 0 mm and less than or equal to 40 mm. For example, it can be 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm and 40 mm, etc.

[0121] In some embodiments, please refer to Figure 2 The unidirectional arrows in the diagram indicate the airflow direction. By providing the second through-hole 231, during the suction of the aerosol-generated product 100, the gas flows in the direction indicated by the arrows due to negative pressure. The gas passes through the first through-hole 211, flows through the first air passage 11, and carries the substance that has been heated and volatilized from the medium section 1 in the containment chamber into the flow channel 311. The air entering from the second through-hole 231 mixes with the air entering from the first through-hole 211 and passing through the first air passage 11 within the flow channel 311, flowing along the flow channel 311 towards the suction port. After cooling through the flow channel 311, it passes through the filter short and is discharged from the aerosol-generated product 100.

[0122] By setting the second through hole 231, the air passing through the second through hole 231 can mix with the air passing through the first air passage hole 11 in the flow channel 311, which is beneficial for diluting and cooling the aerosol. At the same time, it also reduces the suction resistance of the aerosol generating product 100, making the aerosol easier for users to inhale.

[0123] In some embodiments, please refer to Figures 1 to 3 The sum of the flow cross-sectional areas of each first via 211 is less than or equal to half the sum of the flow cross-sectional areas of each second via 231.

[0124] The flow cross-sectional area refers to the area enclosed by a section perpendicular to the direction of fluid flow. Here, it refers to the cross-sectional area of ​​the first through hole 211 and the second through hole 231 along their respective opening directions.

[0125] When the sum of the cross-sectional areas of the first through holes 211 is less than or equal to half the sum of the cross-sectional areas of the second through holes 231, the second through holes 231 are the main source of air intake. In other words, the gas entering through the second through holes 231 is greater than the gas entering through the first through holes 211.

[0126] In some embodiments, the sum of the cross-sectional areas of the first vias 211 is greater than or equal to 0 mm. 2 And less than or equal to 2.5mm 2 For example, it could be 0.2mm 2 0.4mm 2 0.6mm 2 0.8mm 2 1mm 2 1.2mm 2 1.4mm 2 1.6mm 2 1.8mm 2 2mm 2 2.2mm 2 2.4mm 2 and 2.5mm 2 etc.

[0127] It should be noted that when the medium section 1 of the aerosol generating product 100 is short enough, or the suction resistance of the aerosol generating product 100 is small enough, only the second through hole 231 can be provided, that is, the sum of the flow cross-sectional areas of the first through hole 211 is 0, and the aerosol generating product 100 enters the air through the second through hole 231.

[0128] For example, when the length of the medium segment 1 along the first direction is less than 20 mm, only the second through hole 231 needs to be provided, that is, the sum of the flow cross-sectional areas of the first through holes 211 is 0, and the aerosol generating product 100 enters the air through the second through hole 231. When the length of the medium segment 1 along the first direction is greater than or equal to 20 mm, the first through hole 211 needs to be provided to assist in air intake in order to reduce suction resistance.

[0129] In some embodiments, please refer to Figures 1 to 3 The sum of the flow cross-sectional areas of each first via 211 is greater than or equal to twice the sum of the flow cross-sectional areas of each second via 231.

[0130] When the sum of the cross-sectional areas of the first through holes 211 is greater than or equal to twice the sum of the cross-sectional areas of the second through holes 231, the first through holes are the main source of air intake, that is, the amount of gas entering through the first through hole is greater than the amount of gas entering through the second through hole 231.

[0131] By controlling the sum of the cross-sectional areas of the first through hole 211 and the sum of the cross-sectional areas of the second through hole 231, the proportion of gas entering the aerosol generating product 100 from the first through hole 211 and the second through hole can be changed to adapt to aerosol generating products 100 with different structures and different suction resistances. The structure is simple and the manufacturing cost is low.

[0132] In some embodiments, please refer to Figures 1 to 3 On a plane perpendicular to the first direction, the cross-sectional shape of the medium segment 1 is at least one of a circle, an ellipse, a racetrack shape, a polygon, and a sector.

[0133] It should be noted that the outer contour of the aerosol generating product 100 can also correspond to the shape of the medium segment 1. That is to say, the shapes of the functional segment 3 and the coating layer can be adapted to the shape of the medium segment 1, such as circles, ellipses, racetracks, polygons, and fan shapes, etc. In this way, the structure is simple and aesthetically pleasing. Of course, the functional segment 3 and the coating layer can also be designed into other shapes according to the actual situation, which is not limited here.

[0134] By setting the cross-sectional shape of the medium segment 1 to at least one of the following: circular, elliptical, racetrack-shaped, polygonal, and fan-shaped, it is convenient to design and manufacture various types of aerosol generating products 100 to meet the personalized needs of users. At the same time, the above-mentioned shapes also improve the surface area of ​​the medium segment 1, allowing the medium segment 1 to be heated uniformly, thereby facilitating the heating and aerosol generation of the medium segment 1.

[0135] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0136] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. An aerosol-generating product, characterized in that, include: A medium segment, wherein the interior of the medium segment is provided with at least one first air passage hole, the first air passage hole passing through at least one end of the medium segment along a first direction; A covering layer, wherein the covering layer covers at least one end of the medium segment along a first direction.

2. The aerosol-produced product according to claim 1, characterized in that, The coating layer includes a first coating portion and a second coating portion. The second coating portion is connected to the circumferential sidewall of the first coating portion. The first coating portion covers one end of the medium segment along a first direction, and the second coating portion covers the circumferential outside of the medium segment.

3. The aerosol-generating product according to claim 2, characterized in that, The first covering portion is provided with at least one first through hole, the first through hole passing through both ends of the first covering portion along the first direction and communicating with the first airway hole.

4. The aerosol-generating product according to claim 3, characterized in that, Projected onto a plane perpendicular to the first direction, at least a portion of the projection of the first through hole is not located within the projection range of the first airway hole.

5. The aerosol-generating article according to claim 3 or 4, characterized in that, On a plane perpendicular to the first direction, the first through hole is offset from the first air passage hole.

6. The aerosol-generating product according to claim 2, characterized in that, The aerosol generating product further includes a functional section, which is disposed at one end of the medium section along a first direction. The functional section has a flow channel that communicates with the first air passage. The coating layer further includes a third coating portion that covers the circumferential exterior of the functional section.

7. The aerosol-generating product according to claim 6, characterized in that, The second covering part and the third covering part are integrally formed.

8. The aerosol-generating product according to claim 6, characterized in that, The third covering part is provided with at least one second through hole, which penetrates the circumferential sidewall of the third covering part and communicates with the flow channel.

9. The aerosol-generating product according to claim 8, characterized in that, The sum of the flow cross-sectional areas of each of the first vias is less than or equal to half the sum of the flow cross-sectional areas of each of the second vias.

10. The aerosol-generating article according to claim 8, characterized in that, The sum of the flow cross-sectional areas of each of the first vias is greater than or equal to twice the sum of the flow cross-sectional areas of each of the second vias.

11. The aerosol-generating product according to claim 1, characterized in that, On a plane perpendicular to the first direction, the cross-sectional shape of the medium segment is at least one of a circle, an ellipse, a racetrack shape, a polygon, and a sector.

12. An aerosol generation system, characterized in that, The aerosol generation system includes an aerosol generation device and an aerosol generation article according to any one of claims 1-11. The aerosol generation device includes a heating element for heating the medium section to generate aerosol.

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