Aerosol extraction section and aerosol generation product

Abstract

The embodiment of the invention provides an aerosol extraction section and an aerosol generating product, the aerosol extraction section is provided with an air flow channel and an air channel groove, the air flow channel is located in the aerosol extraction section and penetrates through the two opposite ends of the aerosol extraction section in the first direction; part of the outer surface of the aerosol extraction section sinks towards the interior of the aerosol extraction section to form the airway groove, the airway groove is provided with a first side and a second side which are opposite in the first direction, the first side is open, and the second side is closed. By adopting the aerosol extraction section provided by the embodiment of the invention, the heating temperature of the aerosol generation matrix section in the aerosol generation product can be well ensured not to be influenced by external airflow.

Description

TECHNICAL FIELD

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

[0002] Generally, an aerosol generating article generates aerosol by heating without combustion. Specifically, an aerosol generating substrate segment is arranged in the aerosol generating article, and the aerosol generating article is heated by a heating element in an aerosol generating device, so that the aerosol generating substrate segment is just heated to a degree sufficient to release fragrance, but the aerosol generating substrate segment does not burn.

[0003] During the heating process of the aerosol generating substrate segment, external airflow generally enters the aerosol generating substrate segment from one end of the aerosol generating substrate segment and flows out from the opposite end of the aerosol generating substrate segment, so as to extract the aerosol released by the heating of the aerosol generating substrate segment. However, the airflow passing through the aerosol generating substrate segment will cause the heating temperature of the aerosol generating substrate segment to drop, thereby not only affecting the consistency of smoking, but also bringing great difficulty to the temperature control of the aerosol generating device. SUMMARY

[0004] Therefore, the embodiments of the present application aim to provide an aerosol extraction segment and an aerosol generating article to solve the technical problem that external airflow has an adverse effect on the heating temperature of the aerosol generating substrate segment in the related art.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide an aerosol extraction segment, which has an airflow channel and an air channel groove. The airflow channel is located inside the aerosol extraction segment and penetrates through the aerosol extraction segment along opposite ends in a first direction. Part of the outer surface of the aerosol extraction segment is recessed towards the inside of the aerosol extraction segment to form the air channel groove. The air channel groove has a first side and a second side opposite to each other along the first direction. The first side is open, and the second side is closed.

[0006] In one embodiment, the first side of the air channel groove forms an opening, and the other sides of the air channel groove except the first side all have groove walls; or,

[0007] The second side of the air channel groove has a groove wall, and the other sides of the air channel groove except the second side all penetrate through the aerosol extraction segment.

[0008] In one embodiment, a cross section of the aerosol extraction segment perpendicular to the first direction has a first length dimension along a second direction and a second length dimension along a third direction. The second direction is perpendicular to the third direction, and the first length dimension is greater than the second length dimension.

[0009] In one embodiment, the ratio of the first length dimension to the second length dimension is 1.05 to 10.

[0010] In one embodiment, the gas passage groove is disposed on at least one of opposite sides of the aerosol extraction section along the second direction; and / or,

[0011] The gas passage groove is disposed on at least one of opposite sides of the aerosol extraction section along the third direction.

[0012] In one embodiment, the number of the gas passage groove is two, and the two gas passage grooves are respectively located on opposite sides of the aerosol extraction section.

[0013] In one embodiment, the depth of the gas passage groove recessed to the inside of the aerosol extraction section is 0.1 mm to 2.5 mm; and / or,

[0014] The area of the cross section of the gas passage groove perpendicular to the first direction is 0.5 mm 2 to 16 mm 2 ; and / or,

[0015] The area of the cross section of the airflow passage perpendicular to the first direction is 5% to 75% of the area of the cross section of the aerosol extraction section perpendicular to the first direction.

[0016] In one embodiment, along the first direction, the aerosol extraction section has a first section and a second section, and the gas passage groove is disposed on the outer surface of the first section;

[0017] The outer surface of the second section is a smooth surface; or,

[0018] The aerosol extraction section has a plurality of heat dissipation ribs, and the plurality of heat dissipation ribs are disposed on the outer surface of at least one of the first section and the second section along the peripheral side of the aerosol extraction section.

[0019] In one embodiment, the aerosol extraction section has a hollow region penetrating through the aerosol extraction section, the hollow region is located at one end of the airflow passage along the first direction, the penetrating direction of the hollow region penetrating through the aerosol extraction section is perpendicular to the first direction, and the side of the hollow region away from the airflow passage is open, and the airflow passage and the gas passage groove are both in communication with the hollow region.

[0020] In one embodiment, the volume of the hollow region is 10% to 65% of the total volume of the aerosol extraction section.

[0021] Another embodiment of the present application provides an aerosol generating article, comprising:

[0022] aerosol generating substrate segment;

[0023] a functional segment, the functional segment at least comprising the aerosol extraction segment mentioned above, the aerosol extraction segment being arranged at one side of the aerosol generating substrate segment, and the first side of the air channel groove facing the aerosol generating substrate segment;

[0024] an outer wrapper with air inlet holes, the outer wrapper being wrapped around the outer circumferential side of the functional segment and the aerosol generating substrate segment, the air inlet holes being in communication with the air channel groove.

[0025] In one embodiment, the functional segment further comprises a filter segment, the filter segment being arranged at the side of the aerosol extraction segment away from the aerosol generating substrate segment.

[0026] In one embodiment, the functional segment further comprises a temperature reduction segment, the temperature reduction segment being arranged between the aerosol extraction segment and the filter segment.

[0027] In one embodiment, the aerosol extraction segment is in contact with the aerosol generating substrate segment; or,

[0028] a gap is formed between the aerosol extraction segment and the aerosol generating substrate segment.

[0029] In one embodiment, the aerosol generating substrate segment has a plurality of air channels, at least part of the air channels being in communication with the air channel groove.

[0030] The embodiments of the present application provide an aerosol extraction segment and an aerosol generating article. The aerosol extraction segment has an airflow channel inside, the airflow channel penetrating through the aerosol extraction segment along opposite ends in a first direction. Part of the outer surface of the aerosol extraction segment is recessed towards the inside of the aerosol extraction segment to form an air channel groove. The air channel groove has a first side and a second side opposite in the first direction. The first side is open, and the second side is closed. After the outer wrapper of the aerosol generating article is wrapped around the outer circumferential side of the functional segment and the aerosol generating substrate segment, the air inlet holes on the outer wrapper are in communication with the air channel groove of the aerosol extraction segment. After the external airflow entering the air channel groove from the air inlet holes of the outer wrapper flows out from the open end of the first side of the air channel groove, it will turn to flow into the airflow channel of the aerosol extraction segment. The airflow flowing out from the open end of the first side of the air channel groove will only pass through a small part of the region of the aerosol generating substrate segment near one end of the aerosol extraction segment, and will not pass through the main heating region of the aerosol generating substrate segment. Therefore, the heating temperature of the aerosol generating substrate segment will not be affected by the airflow, and the heating temperature of the aerosol generating substrate segment can be kept substantially constant. Thus, not only can the amount of smoke during smoking be improved, but the consistency is good, the sensory quality of smoking is better, the consistency before and after is better, the user has a better smoking experience, and the temperature control difficulty of the aerosol generating device is greatly reduced. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the first aerosol-generating article according to an embodiment of this application;

[0032] Figure 2 for Figure 1 The schematic diagram of the aerosol-generated product shown omits the outer coating layer.

[0033] Figure 3 for Figure 2 The diagram shows the structure of the aerosol extraction section.

[0034] Figure 4 for Figure 3 A schematic diagram of the cross-section of the aerosol extraction section is shown.

[0035] Figure 5 for Figure 4 AA section view;

[0036] Figure 6 for Figure 1 A cross-sectional view of the aerosol-generated product shown;

[0037] Figure 7 for Figure 1 The cross-sectional view of the aerosol-generated product shown is from another perspective. The arrows with dashed lines in the figure indicate the direction of airflow.

[0038] Figure 8 This is a schematic diagram of the structure of the second aerosol extraction section according to an embodiment of this application;

[0039] Figure 9 This is a schematic diagram of the structure of the second aerosol-generating article in this application embodiment, omitting the outer wrapping layer;

[0040] Figure 10 for Figure 9 A schematic diagram of the structure of the aerosol-generated product from another perspective;

[0041] Figure 11 This is a cross-sectional view of a third type of aerosol-generating article according to an embodiment of this application;

[0042] Figure 12 This is a schematic diagram of the fourth aerosol-generating article in this application, with the outer wrapping layer omitted;

[0043] Figure 13 This is a cross-sectional view of the fifth aerosol-generating article according to an embodiment of this application;

[0044] Figure 14 for Figure 13 The schematic diagram of the aerosol-generated product shown omits the outer coating layer.

[0045] Figure 15 for Figure 14 The diagram shown is a structural schematic of the third aerosol extraction section in an embodiment of this application.

[0046] Figure 16 This is a schematic diagram of the structure of the fourth aerosol extraction section according to an embodiment of this application;

[0047] Figure 17 This is a cross-sectional view of the sixth aerosol-generating article according to an embodiment of this application. The arrows with dashed lines in the figure indicate the direction of airflow.

[0048] Figure 18 for Figure 17 The schematic diagram of the aerosol-generated product shown omits the outer coating layer.

[0049] Figure 19 for Figure 18 The diagram shows a structural schematic of the fifth aerosol extraction section in an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures

[0051] 10. Functional section; 10a. Cavity; 11. Aerosol extraction section; 11a. Airflow channel; 11b. Airway groove; 11c. Opening; 11d. Groove wall; 11e. Heat dissipation fins; 11f. Hollowed-out area; 111. First section; 112. Second section; 12. Filtration section; 13. Cooling section; 20. Aerosol generation matrix section; 20a. Airway; 30. Outer wrapping layer; 30a. Air inlet; X1. First side; X2. Second side. Detailed Implementation

[0052] In the description of the embodiments in this application, it should be noted that the orientation or positional relationship indicated by terms such as "first direction" is based on the appendix. Figure 3 The indicated directions or positional relationships, such as "second direction" and "third direction," are based on the attached... Figure 4 The orientations or positional relationships shown are for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0053] This application provides an aerosol-generating article; please refer to [link / reference]. Figure 1 , Figure 2 , Figure 6 and Figure 7 The aerosol-generating product includes an aerosol-generating matrix segment 20, a functional segment 10, and an outer coating layer 30.

[0054] The aerosol generating product is used in conjunction with an electronic atomizing device with a heating element. Specifically, the heating element heats and atomizes the aerosol generating matrix section 20 to generate an aerosol for users to inhale or for use in medicine, beauty, etc.

[0055] There are various heating methods for heating elements. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating element being inserted into the aerosol generating matrix section 20 to bake and heat it. Peripheral heating refers to the heating element being positioned around the aerosol generating matrix section 20 to bake and heat it. These heating methods can specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., and are not specifically limited here.

[0056] Aerosol-generating products and Figure 3 The perimeter of the cross section perpendicular to the first direction shown can be designed as needed. However, when the perimeter of the cross section of the aerosol-generated article is less than 14 mm, the hardness and / or strength of the aerosol-generated article in the first direction is low, which is not conducive to user carrying and use. When the perimeter of the cross section of the aerosol-generated article is greater than 40 mm, the overall weight of the aerosol-generated article is high, which reduces the convenience of user use. Therefore, more preferably, the perimeter of the cross section of the aerosol-generated article can be 14 mm to 40 mm (including the endpoint value). For example, the perimeter of the cross section of the aerosol-generated article can be 14 mm, 16 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, etc. More preferably, the perimeter of the cross section of the aerosol-generated article can be 16 mm to 35 mm (including the endpoint value).

[0057] The length of the aerosol generating article along the first direction can also be designed as needed. However, when the length of the aerosol generating article along the first direction is less than 10 mm, the mass of the aerosol generating matrix segment 20 in the aerosol generating article is small, which can easily lead to a decrease in the user's inhalation experience. When the length of the aerosol generating article along the first direction is greater than 70 mm, the aerosol generating article is too long and not convenient for users to carry. Therefore, more preferably, the length of the aerosol generating article along the first direction can be 10 mm to 70 mm (including the endpoint value). For example, the length of the aerosol generating article along the first direction can be 10 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, etc. More preferably, the length of the aerosol generating article along the first direction can be 15 mm to 60 mm.

[0058] The specific structure of the aerosol generating matrix segment 20 is not limited here. Exemplarily, in one embodiment, the aerosol generating matrix segment 20 may be made of the atomizing medium itself, such as a smoky flavoring medium. In other embodiments, the aerosol generating matrix segment 20 may also include a matrix and an atomizing medium disposed on the matrix. The matrix may be, for example, high-temperature resistant carbon fiber. In this way, by providing a matrix, the strength of the aerosol generating matrix segment 20 can be improved, and it can withstand a certain degree of high temperature without producing odor.

[0059] The specific composition of the aerosol generating matrix segment 20 is not limited here. For example, in one embodiment, the aerosol generating matrix segment 20 may include plant components, auxiliary components, smoke-generating components, adhesive components, etc.

[0060] In one embodiment, the plant-based ingredients are one or more combinations of 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 product's aroma. Endogenous substances in the plant-based ingredients, such as nicotine, enter the bloodstream through atomization, promoting the pituitary gland to produce dopamine, thereby generating a sense of physiological satisfaction.

[0061] In one embodiment, the auxiliary component 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. The inorganic fillers provide skeletal support for the plant components, and their micropores increase the porosity of the wall material after molding, thereby improving the aerosol release rate.

[0062] Lubricants include one or more of the following: candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of particles, reduce friction between particles, result in a more uniform overall particle density, and also reduce the pressure required for mold forming, thus reducing mold wear.

[0063] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to some extent, slow down the loss of flavor substances during storage, increase the stability of flavor substances, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between water-soluble and water-insoluble components in a mixture, and form a more robust film on the surface of microdroplets or an electric double layer on the surface of microdroplets due to the charge given by the emulsifier, preventing microdroplets from agglomerating and maintaining a homogeneous emulsion. Homogenizing two immiscible components through emulsification can improve the consistency of product quality.

[0064] The function of the smoke-generating agent is to produce a large amount of vapor upon heating, thereby increasing the amount of smoke in the smoke-generating product. In one embodiment, the smoke-generating agent may include, for example, one or more combinations of: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, meso-erythritol, a mixture of diacetins, diethyl caprylate, triethyl citrate, methyl benzoate, phenylacetic acid methyl ester, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0065] In one embodiment, the adhesive component is a natural plant extract, a non-ionic modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive achieves close contact with the product component materials through wetting at the interface, generating intermolecular attraction, thereby binding the powder, liquid, or other components. Furthermore, the use of a natural plant extract and a non-ionic adhesive avoids the release of harmful substances such as methanol, formaldehyde, and acrolein associated with colloidal modification, thus improving the safety of the product.

[0066] For example, the aerosol generating matrix segment 20 can be a particulate aggregate, which is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing smoke-generating agents, tobacco, and other components. The particulate aggregate aerosol generating matrix segment 20 remains an integral medium after being heated and inhaled or after heating is stopped, and is not prone to disintegration and falling off. This solves the problems of thin sheet-like, filamentous, or loose particulate aerosol generating matrix segments in the prior art, such as loose sheet-like components, shedding of filamentous components, particulate components, and difficulty in cleaning.

[0067] The shape of the aerosol generating matrix segment 20 is not limited. For example, the aerosol generating matrix segment 20 can be columnar. The shape of the cross section of the columnar aerosol generating matrix segment 20 perpendicular to the first direction can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, racetrack-shaped, irregular, etc., where irregular refers to other symmetrical or asymmetrical shapes other than those listed above.

[0068] Please see Figure 9 , Figure 10 and Figure 13 The aerosol generation matrix section 20 can be equipped with an airway 20a. Figure 9 , Figure 10 and Figure 13The airway 20a extends through both ends of the aerosol generating matrix segment 20. In some embodiments, the airway 20a may extend through only one end of the aerosol generating matrix segment 20, while the other end is closed.

[0069] Compared to the airway 20a penetrating one end of the aerosol generation matrix section 20, the airway 20a penetrating both ends of the aerosol generation matrix section 20 is more conducive to reducing the suction resistance of the user's inhalation.

[0070] The number of airway 20a can be one or more.

[0071] Airway 20a can be as follows Figure 13 The straight airway 20a shown is an airway 20a that extends in a straight line, or in other words, the direction of extension of the straight airway 20a is a straight line.

[0072] Airway 20a can also be a spiral airway 20a. A spiral airway 20a is an airway 20a in which at least a portion of its extension direction is a curve with a non-zero curvature. For example, along the extension direction of the spiral airway 20a, the spiral airway 20a can have a structure with both curved segments with a non-zero curvature and straight segments with a zero curvature, or it can have a structure with only curved segments with a non-zero curvature and no straight segments with a zero curvature. In other words, from the starting point to the ending point of the spiral airway 20a along the extension direction, the spiral airway 20a only needs to not extend along a straight line.

[0073] When there are multiple airways 20a, some airways 20a can be straight airways 20a, and other airways 20a can be spiral airways 20a.

[0074] The shape of the cross-section of the airway 20a perpendicular to the first direction is not limited. For example, the shape of the cross-section can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, racetrack-shaped, or irregular.

[0075] The airway 20a can gather aerosols to generate aerosols released by the matrix section 20 when heated, and make the aerosols flow along the airway 20a, thereby increasing the flow rate of the aerosols and thus improving the extraction efficiency of the aerosols.

[0076] In some other embodiments, the aerosol generation matrix segment 20 may not have an airway 20a.

[0077] Please continue reading. Figures 2 to 7The functional segment 10 includes an aerosol extraction segment 11, which has an airflow channel 11a and an airway groove 11b. The airflow channel 11a is located inside the aerosol extraction segment 11 and extends through both ends of the aerosol extraction segment 11 along a first direction. A portion of the outer surface of the aerosol extraction segment 11 is recessed into the interior of the aerosol extraction segment 11 to form the airway groove 11b. The airway groove 11b has a first side X1 and a second side X2 opposite to each other along the first direction, with the first side X1 open and the second side X2 closed.

[0078] The aerosol extraction section 11 is located on one side of the aerosol generation matrix section 20, and the first side X1 of the air channel groove 11b faces the aerosol generation matrix section 20, that is, the open part of the air channel groove 11b faces the aerosol generation matrix section 20.

[0079] During the user's suction process, the aerosol generated by the heating of the aerosol generation matrix section 20 passes through the functional section 10 and flows into the user's oral cavity.

[0080] The length ratio of the aerosol generating matrix segment 20 to the functional segment 10 along the first direction can be designed as needed. However, when the length ratio of the aerosol generating matrix segment 20 to the functional segment 10 along the first direction is less than 1:20, the length of the functional segment 10 is too long, which easily leads to condensation of aerosols in the functional segment 10, resulting in a low utilization rate of the aerosol generating matrix segment 20 and reducing the user's inhalation experience. When the length ratio of the aerosol generating matrix segment 20 to the functional segment 10 along the first direction is greater than 10:1, the cooling path of the aerosol is short, and the temperature of the aerosol flowing into the user's mouth is too high, affecting the user's inhalation experience. Therefore, more preferably, the length ratio of the aerosol generating matrix segment 20 to the functional segment 10 along the first direction can be 1:20 to 10:1 (including endpoint values). For example, the length ratio of the aerosol generating matrix segment 20 to the functional segment 10 along the first direction can be 1:20, 1:1, 2:1, 3:1, 5:1, 7:1, 10:1, etc.

[0081] The aerosol extraction section 11 can contact the aerosol generation matrix section 20, and a gap can also be formed between the aerosol extraction section 11 and the aerosol generation matrix section 20.

[0082] When a gap is formed between the aerosol extraction section 11 and the aerosol generation matrix section 20, the length of the gap along the first direction can be 0.1 mm to 4 mm (including the endpoint value), for example, the length of the gap along the first direction can be 0.1 mm, 0.2 mm, 0.5 mm, 1 mm, 2 mm, 3 mm, 4 mm, etc.

[0083] The material of the aerosol extraction section 11 is not limited, and may include, but is not limited to, one or more combinations of materials such as silicone, PLA (polylactic acid), PBAT (butylene adipate-co-terephthalate), graphite, plant-based materials, and metals.

[0084] The shape of the cross-section of the aerosol extraction section 11 perpendicular to the first direction is not limited; for example, please refer to [reference needed]. Figure 4 The cross-section of the aerosol extraction section 11 has a first length dimension H1 along a second direction and a second length dimension H2 along a third direction. The second direction is perpendicular to the third direction. The first length dimension H1 can be greater than the second length dimension H2. That is to say, the shape of the cross-section of the aerosol extraction section 11 has different length dimensions in the two perpendicular directions. For example, the shape of the cross-section of the aerosol extraction section 11 can be elliptical, racetrack-shaped, etc., rather than square, circle, or other shapes with the same length dimension in the two perpendicular directions.

[0085] The shape of the cross-section of the aerosol extraction section 11 is actually roughly consistent with the shape of the cross-section of the aerosol generating product. Therefore, when the first length dimension H1 of the cross-section of the aerosol extraction section 11 can be greater than the second length dimension H2, the cross-section of the aerosol generating product also has different length dimensions in the second and third directions. This shape of cross-section is more suitable for the user's lips, resulting in a better suction experience.

[0086] The ratio of the first length dimension H1 to the second length dimension H2 of the aerosol extraction section 11 can be designed as needed. However, when the ratio of the first length dimension H1 to the second length dimension H2 is less than 1.05, a gap is easily generated between the aerosol-generated product and the user's lips, resulting in a decrease in the user's inhalation experience. When the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol extraction section 11 is greater than 10, the yield rate of the aerosol-generated product during the production process is low, which easily leads to increased costs. Therefore, more preferably, the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol extraction section 11 can be 1.05 to 10 (including the endpoint value). For example, the ratio of the first length dimension H1 to the second length dimension H2 can be 1.05, 2, 5, 6, 8, 10, etc. More preferably, the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol extraction section 11 can be 2 to 6 (including the endpoint value).

[0087] In addition, generally speaking, the shape of the cross-section of the aerosol generating matrix section 20 is roughly consistent with the shape of the cross-section of the aerosol extraction section 11. Therefore, when the first length dimension H1 of the cross-section of the aerosol extraction section 11 can be greater than the second length dimension H2, the cross-section of the aerosol generating matrix section 20 also has different length dimensions in the second and third directions. The aerosol generating matrix section 20 has a larger thermal contact area during the heating process, which can improve the heating efficiency of the aerosol generating matrix section 20, shorten the waiting time required during the heating process, and thus improve the user's suction experience.

[0088] In other embodiments, the cross-sectional shape of the aerosol extraction section 11 may also be a square, a circle, or other shape with the same length dimension in two perpendicular directions.

[0089] The aerosol extraction section 11 works in conjunction with the outer wrapping layer 30 to achieve aerosol extraction.

[0090] Specifically, both the airflow channel 11a and the air passage 11b are used for airflow passage. The air passage 11b is open on the first side X1 along the first direction, while the second side X2 is closed. That is to say, the airflow in the air passage 11b can flow out from the open part, but cannot flow out from the closed second side X2.

[0091] The specific structural form of the airway groove 11b is not limited; for example, please refer to [link to relevant documentation]. Figures 3 to 5 The first side X1 of the airway groove 11b can form an opening 11c. The other sides of the airway groove 11b, except for the first side X1, have groove walls 11d. That is, the airway groove 11b can be formed by the groove walls 11d. The first side X1 is open in the form of the opening 11c. The enclosing groove walls 11d not only close the second side X2 of the airway groove 11b, but also close the other sides of the airway groove 11b except for the first side X1 and the second side X2.

[0092] For example, please refer to Figure 8 The airway groove 11b can also have a groove wall 11d on the second side X2. The airway groove 11b, except for the second side X2, extends through the aerosol extraction section 11. In other words, the airway groove 11b can also have a groove wall 11d only on the second side X2 to seal the second side X2 of the airway groove 11b. The airway groove 11b, except for the second side X2, has neither a groove wall 11d nor an opening 11c on the other sides.

[0093] Please see Figure 1The outer wrapping layer 30 has an air inlet 30a for allowing airflow from the outside to pass through. There can be one or more air inlets 30a. The outer wrapping layer 30 wraps around the outer periphery of the functional section 10 and the aerosol generating matrix section 20, and the air inlet 30a communicates with the air passage groove 11b.

[0094] Please continue reading. Figure 7 After the outer wrapping layer 30 is wrapped around the outer periphery of the functional section 10 and the aerosol generating matrix section 20, the outer wrapping layer 30 can block the periphery of the airway groove 11b, making the airway groove 11b a relatively closed flow channel. At the same time, since the air inlet 30a on the outer wrapping layer 30 is connected to the airway groove 11b, during the user's suction process, the external airflow can enter the airway groove 11b through the air inlet 30a under the action of negative pressure, and then flow out from the open part of the airway groove 11b located on the first side X1. At the junction of the functional section 10 and the aerosol generating matrix section 20, the heated aerosol is extracted and carried into the airflow channel 11a of the aerosol extraction section 11. Therefore, the airflow can carry the aerosol out of the airflow channel 11a and flow into the user's mouth, thereby realizing the extraction of aerosol.

[0095] The number of airflow channels 11a can be one or more, and the number of airway slots 11b can also be one or more. When there are multiple airway slots 11b, the outer wrapping layer 30 is provided with air inlet holes 30a that are connected to each airway slot 11b.

[0096] For example, please refer to Figures 3 to 5 , Figure 7 The aerosol extraction section 11 can be provided with two air channel slots 11b, which are located on opposite sides of the aerosol extraction section 11, so that the airflow can flow on opposite sides of the aerosol extraction section 11, thereby improving the uniformity of airflow and aerosol mixing.

[0097] For aerosol extraction segment 11 where the first length dimension H1 is greater than the second length dimension H2, please refer to [link / reference]. Figures 3 to 5 An airway groove 11b may be provided on at least one side of opposite sides of the aerosol extraction section 11 along the second direction. Please refer to [reference needed]. Figure 13 and Figure 15 Alternatively, an airway groove 11b can be provided on at least one of the opposite sides along the third direction of the aerosol extraction section 11.

[0098] Since the first length dimension H1 along the second direction is greater than the second length dimension H2 along the third direction, therefore, please refer to Figures 3 to 5When an airway groove 11b is provided on at least one side of the opposite sides of the aerosol extraction section 11 along the second direction, a more spacious area can be provided for the setting of the airway groove 11b. The length dimension of the airway groove 11b along the second direction can be appropriately increased, which is conducive to improving the aerosol extraction efficiency and thus improving the utilization rate of the aerosol generation matrix section 20.

[0099] Please see Figure 13 and Figure 15 When an air channel groove 11b is provided on at least one of the opposite sides along the third direction in the aerosol extraction section 11, the flow velocity of the airflow flowing along the air channel groove 11b is relatively large during the suction process. As a result, the mixing intensity can be increased, the particle size range of the aerosol can be reduced, and thus the aroma quality of the aerosol can be improved.

[0100] The shape of the cross section of the airflow channel 11a perpendicular to the first direction is not limited. For example, the shape of the cross section can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, runway-shaped, or irregular.

[0101] The cross-sectional area of ​​the airflow channel 11a can be designed as needed. However, when the cross-sectional area of ​​the airflow channel 11a is less than 5% of the cross-sectional area of ​​the aerosol extraction section 11, the airflow channel 11a is relatively narrow, resulting in greater suction resistance during aspiration, which is not conducive to user aspiration. When the cross-sectional area of ​​the airflow channel 11a is greater than 75% of the cross-sectional area of ​​the aerosol extraction section 11, the wall thickness of the airflow channel 11a is thinner, resulting in lower support. At the same time, the cross-sectional area of ​​the airflow channel 11a is relatively large, resulting in lower suction resistance. During aspiration, it is easy to generate a "vacuum" phenomenon, which is also not conducive to user aspiration. Therefore, more preferably, the cross-sectional area of ​​the airflow channel 11a can be 5% to 75% (including the endpoint value) of the cross-sectional area of ​​the aerosol extraction section 11. For example, the cross-sectional area of ​​the airflow channel 11a can be 5%, 10%, 30%, 40%, 50%, 60%, 75%, etc. of the cross-sectional area of ​​the aerosol extraction section 11.

[0102] The depth of the indentation of the airway groove 11b into the aerosol extraction section 11 can be designed as needed. However, when the depth of the indentation of the airway groove 11b into the aerosol extraction section 11 is less than 0.1 mm, the resistance of the airflow through the airway groove 11b is relatively large, resulting in a large suction resistance during aspiration. When the depth of the indentation of the airway groove 11b into the aerosol extraction section 11 is greater than 2.5 mm, the dimension of the aerosol extraction section 11 in the indentation direction of the airway groove 11b needs to be increased accordingly to support the airway groove 11b, thereby reducing aerosol generation. The dimensions of the product in the recessed direction of the airway groove 11b also need to be increased accordingly. Gaps are easily generated between the aerosol-generating product and the user's lips, resulting in a decrease in the suction experience. Therefore, more preferably, the depth of the recess of the airway groove 11b into the aerosol extraction section 11 is 0.1mm to 2.5mm (including the endpoint value). For example, the depth of the airway groove 11b can be 0.1mm, 0.5mm, 1mm, 2mm, 2.5mm, etc. More preferably, the depth of the airway groove 11b can be 0.5mm to 1mm (including the endpoint value).

[0103] The area of ​​the cross-section of the air passage groove 11b perpendicular to the first direction can be designed as needed; however, when the area of ​​the cross-section of the air passage groove 11b is less than 0.5 mm²... 2 When the cross-sectional area of ​​the airway groove 11b is relatively small, the airflow extraction of aerosols is less effective, and the suction resistance during aspiration is greater. 2 At this time, the cross-sectional area of ​​the airway groove 11b is relatively large, which easily leads to over-condensation when the airflow comes into contact with the aerosol. Furthermore, the suction resistance during suction is low, making it prone to "cavitation" during the suction process, which is also detrimental to user suction. Therefore, more preferably, the cross-sectional area of ​​the airway groove 11b can be 0.5 mm². 2 ~16mm 2 (Including endpoint values), for example, the cross-sectional area of ​​the airway groove 11b can be 0.5 mm. 2 1mm 2 5mm 2 7mm 2 10mm 2 15mm 2 16mm 2 wait.

[0104] Please see Figure 9 and Figure 10For an aerosol generation matrix segment 20 with multiple air channels 20a, at least some of the air channels 20a can be connected to the air channel groove 11b. That is, the airflow flowing out of the air channel groove 11b can flow into the air channel 20a connected to the air channel groove 11b, and carry the aerosol in the air channel 20a into the airflow channel 11a. This method can improve the aerosol extraction efficiency and improve the consistency before and after aspiration.

[0105] The material of the outer wrapping layer 30 is not limited, for example, including but not limited to one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT, etc.

[0106] The outer wrapping layer 30 can be a single layer or multiple layers.

[0107] Additionally, it should be noted that functional segment 10 can be as follows: Figure 2 The diagram shows only the aerosol extraction section 11. Other sections can be added in addition to the aerosol extraction section 11. For an example, please refer to [link to example diagram]. Figure 11 Functional section 10 can be equipped with a filter section 12, which is located on the side of aerosol extraction section 11 away from aerosol generation matrix section 20.

[0108] The filter section 12 is designed to come into contact with the user's mouth during inhalation to filter the aerosol.

[0109] The materials of the filter section 12 include, but are not limited to, one or more combinations of PE, PLA, PBAT, PP (Polypropylene), cellulose acetate, and propylene fiber.

[0110] Figure 11 The filter section 12 and the aerosol extraction section 11 are arranged at intervals so that a cavity 10a is formed at the interval. The cavity 10a can cool the airflow carrying aerosol to a certain extent and improve the "burning mouth" phenomenon when the user inhales aerosol.

[0111] In other embodiments, the filtration section 12 may also contact the aerosol extraction section 11.

[0112] For example, please refer to Figures 12 to 14 The functional section 10 can also be equipped with a cooling section 13 between the aerosol extraction section 11 and the filtration section 12. The cooling section 13 is used to cool the aerosol before the filtration section 12 filters the aerosol, so as to reduce the inlet temperature of the aerosol and improve the "burning mouth" phenomenon when the user inhales the aerosol.

[0113] The materials of the cooling section 13 include, but are not limited to, one or more combinations of PE, PLA, PBAT, PP, cellulose acetate, and propylene fiber.

[0114] The cooling section 13 and the filter section 12 can be made of the same material or different materials.

[0115] For aerosol generating products without a filter section 12, a separate mouthpiece that comes into contact with the user's mouth can be provided for the aerosol generating product. The mouthpiece can be a disposable mouthpiece or a reusable mouthpiece.

[0116] Because the aerosol generating article of this application embodiment is provided with an aerosol extraction section 11 having an internal airflow channel 11a and an external air channel groove 11b, the external airflow entering the air channel groove 11b from the air inlet 30a of the outer wrapping layer 30 will flow into the airflow channel 11a of the aerosol extraction section 11 after exiting from the opening of the first side X1 of the air channel groove 11b. The airflow exiting from the opening of the first side X1 of the air channel groove 11b will only pass through a small part of the aerosol generating matrix section 20 near the end of the aerosol extraction section 11, and will not pass through the main heating area of ​​the aerosol generating matrix section 20. Therefore, the heating temperature of the aerosol generating matrix section 20 is basically not affected by the airflow, and the heating temperature of the aerosol generating matrix section 20 can be kept roughly constant. This not only increases the amount of smoke during inhalation, but also provides good continuity, better sensory quality, and better consistency, giving users a better inhalation experience. At the same time, it also greatly reduces the difficulty of temperature control of the aerosol generating device.

[0117] In addition, since the temperature of the outside airflow is relatively low, while the temperature of the aerosol released by the aerosol generation matrix section 20 is relatively high, when the relatively high-temperature aerosol mixes with the relatively low-temperature airflow in the airflow channel 11a, the aerosol can achieve a cooling effect by exchanging heat with the airflow. At the same time, the aerosol extraction section 11 can also conduct some of the heat of the aerosol to the outside environment. Therefore, the aerosol extraction section 11 of this embodiment can also reduce the inlet temperature of the aerosol and improve the "burning mouth" phenomenon when the user inhales the aerosol.

[0118] In one embodiment, please refer to Figure 3 Along the first direction, the aerosol extraction section 11 has a first section 111 and a second section 112. The air channel groove 11b is disposed on the outer surface of the first section 111. The outer surface of the second section 112 can be a smooth surface, that is, the outer surface of the second section 112 is roughly flat and has no grooves, protrusions or other structures.

[0119] The outer surface of the second segment 112 is set as a smooth surface, which can fit well with the outer wrapping layer 30, so that the outer wrapping layer 30 can tightly wrap the aerosol extraction segment 11, thereby improving the sealing of the airway groove 11b.

[0120] In one embodiment, please refer to Figure 16 The aerosol extraction section 11 can be provided with multiple heat dissipation fins 11e, which can be arranged along the outer periphery of the aerosol extraction section 11 on the outer surface of the second section 112. Figure 16 Multiple heat dissipation fins 11e surround the outer periphery of the second section 112. In other embodiments, the multiple heat dissipation fins 11e may only be provided in a portion of the second section 112. The heat dissipation fins 11e can play a good role in heat dissipation, thereby improving the cooling effect of the aerosol extraction section 11.

[0121] In another embodiment, please refer to Figure 15 In addition to providing heat dissipation fins 11e on the outer surface of the second segment 112, heat dissipation fins 11e can also be provided on the outer surface of the first segment 111. Figure 15 Some of the heat dissipation fins 11e are simultaneously provided on the outer surfaces of the first segment 111 and the second segment 112. In other embodiments, the heat dissipation fins 11e of the first segment 111 and the second segment 112 may also be provided separately.

[0122] Heat dissipation fins 11e are provided on the outer surfaces of both the first section 111 and the second section 112, which can expand the heat dissipation area of ​​the heat dissipation fins 11e and thus further improve the cooling effect of the aerosol extraction section 11.

[0123] In other embodiments, heat dissipation ribs 11e may be provided only on the outer surface of the first segment 111, while heat dissipation ribs 11e may not be provided on the outer surface of the second segment 112.

[0124] In one embodiment, please refer to Figures 17 to 19 The aerosol extraction section 11 may be provided with a hollow area 11f that penetrates the aerosol extraction section 11. The hollow area 11f is located at one end of the airflow channel 11a along the first direction. The penetration direction of the hollow area 11f through the aerosol extraction section 11 is perpendicular to the first direction. The side of the hollow area 11f away from the airflow channel 11a is open. The airflow channel 11a and the air channel groove 11b are both connected to the hollow area 11f.

[0125] The hollowed-out area 11f is used to mix the airflow from the air channel 11b and the aerosol released by the heated aerosol generation matrix section 20. That is, the airflow from the air channel 11b enters the hollowed-out area 11f through the connection between the air channel 11b and the hollowed-out area 11f, and the aerosol released by the heated aerosol generation matrix section 20 enters the hollowed-out area 11f through the open part on the side of the hollowed-out area 11f away from the airflow channel 11a. The airflow and aerosol are mixed and then flow into the airflow channel 11a, which can further improve the aerosol extraction efficiency and thus improve the user's suction experience.

[0126] The volume of the hollow region 11f can be designed as needed. However, when the volume of the hollow region 11f is less than 10% of the total volume of the aerosol extraction section 11, the volume of the hollow region 11f is relatively small, and the aerosol extraction effect is relatively poor. When the volume of the hollow region 11f is greater than 65% of the total volume of the aerosol extraction section 11, the volume of the hollow region 11f is relatively large, and the aerosol is prone to condensation in the hollow region 11f, resulting in a decrease in the utilization rate of the aerosol. Therefore, more preferably, the volume of the hollow region 11f can be 10% to 65% (including the endpoint value) of the total volume of the aerosol extraction section 11. For example, the volume of the hollow region 11f can be 10%, 20%, 30%, 40%, 50%, 65% of the total volume of the aerosol extraction section 11, etc.

[0127] 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.

[0128] 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 extraction section, characterized in that, The aerosol extraction section has an airflow channel and an airway groove. The airflow channel is located inside the aerosol extraction section and extends through both ends of the aerosol extraction section along a first direction. A portion of the outer surface of the aerosol extraction section is recessed into the interior of the aerosol extraction section to form the airway groove. The airway groove has a first side and a second side opposite to each other along the first direction. The first side is open and the second side is closed.

2. The aerosol extraction section according to claim 1, characterized in that, An opening is formed on the first side of the airway groove, and all other sides of the airway groove, except for the first side, have groove walls; or, The second side of the airway groove has a groove wall, and the other sides of the airway groove, except for the second side, all penetrate the aerosol extraction section.

3. The aerosol extraction section according to claim 1 or 2, characterized in that, The aerosol extraction section has a cross-section perpendicular to the first direction, having a first length dimension along a second direction and a second length dimension along a third direction, wherein the second direction is perpendicular to the third direction, and the first length dimension is greater than the second length dimension.

4. The aerosol extraction section according to claim 3, characterized in that, The ratio of the first length dimension to the second length dimension is 1.05 to 10.

5. The aerosol extraction section according to claim 3, characterized in that, The aerosol extraction section has the airway groove provided on at least one side of opposite sides along the second direction; and / or, The aerosol extraction section has the air channel groove provided on at least one side of the opposite sides along the third direction.

6. The aerosol extraction section according to claim 1 or 2, characterized in that, The number of airway slots is two, and the two airway slots are located on opposite sides of the aerosol extraction section.

7. The aerosol extraction section according to claim 1 or 2, characterized in that, The depth of the indentation of the airway groove into the aerosol extraction section is 0.1 mm to 2.5 mm; and / or, The area of ​​the cross-section of the airway groove perpendicular to the first direction is 0.5 mm. 2 ~16mm 2 ; and / or, The area of ​​the cross-section of the airflow channel perpendicular to the first direction is 5% to 75% of the area of ​​the cross-section of the aerosol extraction section perpendicular to the first direction.

8. The aerosol extraction section according to claim 1 or 2, characterized in that, Along the first direction, the aerosol extraction section has a first section and a second section, and the air channel groove is disposed on the outer surface of the first section; The outer surface of the second segment is a smooth surface; or, The aerosol extraction section has a plurality of heat dissipation ribs, which are disposed along the outer periphery of the aerosol extraction section on the outer surface of at least one of the first section and the second section.

9. The aerosol extraction section according to claim 1 or 2, characterized in that, The aerosol extraction section has a hollow area that penetrates the aerosol extraction section. The hollow area is located at one end of the airflow channel along the first direction. The penetrating direction of the hollow area through the aerosol extraction section is perpendicular to the first direction, and the side of the hollow area away from the airflow channel is open. The airflow channel and the air channel groove are both connected to the hollow area.

10. The aerosol extraction section according to claim 9, characterized in that, The volume of the hollowed-out area is 10% to 65% of the total volume of the aerosol extraction section.

11. An aerosol-generating product, characterized in that, include: Aerosol generation matrix segment; The functional segment includes at least the aerosol extraction segment as described in any one of claims 1-10, wherein the aerosol extraction segment is disposed on one side of the aerosol generation matrix segment, and the first side of the air channel groove faces the aerosol generation matrix segment. An outer wrapping layer with an air inlet is wrapped around the outer periphery of the functional section and the aerosol generating matrix section, and the air inlet is connected to the air channel groove.

12. The aerosol-generating article according to claim 11, characterized in that, The functional section also includes a filtration section, which is located on the side of the aerosol extraction section opposite to the aerosol generation matrix section.

13. The aerosol-generating product according to claim 12, characterized in that, The functional section also includes a cooling section, which is located between the aerosol extraction section and the filtration section.

14. The aerosol-generating article according to claim 11 or 12, characterized in that, The aerosol extraction section is in contact with the aerosol generation matrix section; or... A gap is formed between the aerosol extraction section and the aerosol generation matrix section.

15. The aerosol-generating article according to claim 11 or 12, characterized in that, The aerosol generating matrix section has multiple air channels, and at least some of the air channels are connected to the air channel groove.

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