Cooling component and aerosol generating product

Abstract

Embodiments of the present application provide a cooling component and an aerosol generating product. The cooling component comprises a rotating piece and a housing provided with a cooling channel. The rotating piece is rotatably disposed in the cooling channel so as to rotate under the action of airflow during inhalation of the aerosol generating product. The cooling component in the embodiments of the present application has a relatively good cooling effect.

Description

Cooling member and aerosol generating article

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202420710480.X, filed on April 8, 2024, the entire contents of which is incorporated herein by reference. TECHNICAL FIELD

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

[0004] Generally, an aerosol generating article generates aerosol by heating without combustion. Specifically, an aerosol generating substrate is arranged in the aerosol generating article, the aerosol generating article is loaded into an aerosol generating device, and the aerosol generating substrate is heated by a heating assembly in the aerosol generating device to a temperature sufficient to release flavor, but the aerosol generating substrate does not burn.

[0005] Since the temperature of the aerosol generated during the heating of the aerosol generating substrate is high, in order to reduce the temperature of the aerosol, the aerosol generating article generally has a cooling segment at one end of the aerosol generating substrate. The aerosol flowing out of the aerosol generating substrate is cooled in the cooling segment and then enters the user's oral cavity.

[0006] In related art, the cooling segment is cooled by the following two methods: 1. Adding a phase change material to the cooling segment, which absorbs heat from the aerosol through phase change, thereby cooling the aerosol; 2. Providing a bending passage for the aerosol to pass through in the cooling segment, which prolongs the diffusion path of the aerosol to cool the aerosol. Although these cooling methods can reduce the temperature of the aerosol, they also have certain defects. For example, the addition of phase change material makes the manufacturing process of the aerosol generating article more complex, increasing the cost of the aerosol generating article. In addition, the presence of phase change material enhances the moisture absorption capacity of the aerosol generating article, thereby reducing the stability of the aerosol generating article. In addition, the bending passage in the cooling segment not only has a high implementation difficulty in industry, but also has a long path that can absorb the aerosol, ultimately resulting in a low atomization amount of the aerosol generating article, affecting the user's experience. SUMMARY

[0007] Therefore, the embodiments of the present application aim to provide a cooling member and an aerosol generating article that can have a good cooling effect.

[0008] To achieve the above object, the present application provides a cooling member for an aerosol generating article, comprising:

[0009] a rotating member;

[0010] a housing having a cooling passage, the rotating member being rotatably disposed in the cooling passage to rotate by the action of airflow during the puffing of the aerosol generating article.

[0011] In one embodiment, the angle between the rotation axis of the rotating member and the extension direction of the cooling passage is not greater than 10 degrees.

[0012] In one embodiment, the rotating member includes a first rotating member including a main body and a plurality of blades, the plurality of blades being annularly disposed on the outer circumferential side of the main body.

[0013] In one embodiment, the number of blades is 3 to 7.

[0014] In one embodiment, the blades are inclined with respect to the rotation axis of the first rotating member, and the inclination angle of the blades with respect to the rotation axis is 1 to 45 degrees.

[0015] In one embodiment, the rotating member includes a second rotating member in the shape of a column, the second rotating member having a plurality of helical grooves spaced apart on the outer side wall thereof, each of the helical grooves extending through opposite ends of the second rotating member in the axial direction.

[0016] In one embodiment, the number of helical grooves is 2 to 7.

[0017] In one embodiment, the cooling member includes a rotating shaft extending into the cooling passage, the rotating member being rotatably disposed on the rotating shaft.

[0018] In one embodiment, a plurality of rotating members are disposed on the rotating shaft.

[0019] In one embodiment, the plurality of rotating members include a first rotating member and a second rotating member; the first rotating member includes a main body and a plurality of blades, the plurality of blades being annularly disposed on the outer circumferential side of the main body, the second rotating member being in the shape of a column, the second rotating member having a plurality of helical grooves spaced apart on the outer side wall thereof, each of the helical grooves extending through opposite ends of the second rotating member in the axial direction.

[0020] In one embodiment, the angle between the axial center line of the rotating shaft and the extension direction of the cooling passage is not greater than 10 degrees; the second rotating member is located on the side of the first rotating member away from the air inlet end of the cooling passage.

[0021] In one embodiment, the included angle between the axial center line of the rotating shaft and the extension direction of the cooling channel is not greater than 10 degrees; the second rotating member is located on the side of the first rotating member away from the air inlet end of the cooling channel; and the first rotating member is arranged on the opposite sides of the second rotating member.

[0022] In one embodiment, the side wall of the shell is provided with an air hole in communication with the cooling channel.

[0023] In one embodiment, the air hole is arranged close to the air inlet end or the air outlet end of the cooling channel.

[0024] In one embodiment, the hole surface area of the air hole is 0.01-0.2 mm 2 .

[0025] In one embodiment, at least part of the shell is a light-transmitting structure, and the light-transmitting structure is arranged at least corresponding to the arrangement position of the rotating member.

[0026] In one embodiment, the number of the rotating members is 1-4.

[0027] In one embodiment, the length of the rotating member along the extension direction of the rotating axis is 3-20 mm.

[0028] In one embodiment, the maximum diameter of the rotating member rotating around the rotating axis is 3-10 mm.

[0029] The present application also provides an aerosol generating article, comprising:

[0030] An aerosol generating substrate section;

[0031] The above-mentioned temperature reducing component is arranged at one end of the aerosol generating substrate section along the first direction.

[0032] In one embodiment, the aerosol generating article further comprises a functional section, the functional section is arranged at the end of the temperature reducing component away from the aerosol generating substrate section, and the functional section at least comprises a filter section.

[0033] The embodiment of the present application provides a cooling component and an aerosol generating article. The cooling component is provided with a rotating part and a shell with a cooling channel, and the rotating part is arranged in the cooling channel of the shell. In the smoking process of the aerosol generating article, the rotating part is rotated by the action of airflow. In the rotating process, the rotating part converts the internal energy of the aerosol into kinetic energy, and promotes the aerosol to fully exchange heat with the external airflow, so as to reduce the temperature of the aerosol. The cooling component has a simple structure and good cooling effect, and can effectively improve the comfort of the user in smoking. In addition, in the rotating process, the rotating part can not only scatter and reshape the aerosol, so that the aerosol forms a suitable particle size to improve the taste, but also separate the light and heavy components in the aerosol, so that the heavy components stay in the cooling channel, so as to reduce the harm of the aerosol to the human body. BRIEF DESCRIPTION OF DRAWINGS

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

[0035] Fig. 2 is a sectional view of the aerosol generating article shown in Fig. 1, and the dashed arrow in the figure indicates the direction of airflow;

[0036] Fig. 3 is a structural schematic view of a cooling component shown in Fig. 1;

[0037] Fig. 4 is a structural schematic view of a first rotating part shown in Fig. 3;

[0038] Fig. 5 is a front view of the first rotating part and a rotating shaft shown in Fig. 3;

[0039] Fig. 6 is a top view of Fig. 5;

[0040] Fig. 7 is another connection relationship between the first rotating part and the rotating shaft shown in Fig. 4;

[0041] Fig. 8 is a connection relationship between two kinds of first rotating parts and rotating shafts;

[0042] Fig. 9 is a structural schematic view of a second rotating part according to an embodiment of the present application;

[0043] Fig. 10 is a connection relationship between the second rotating part and the rotating shaft shown in Fig. 9;

[0044] Fig. 11 is a connection relationship between the first rotating part shown in Fig. 4, the second rotating part shown in Fig. 10 and the rotating shaft;

[0045] Fig. 12 is another connection relationship between the first rotating part shown in Fig. 4, the second rotating part shown in Fig. 10 and the rotating shaft. DETAILED DESCRIPTION

[0046] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms such as "first direction" is based on the orientation or positional relationship shown in Figure 1. These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] The embodiments of the present application provide an aerosol generating article. Referring to Figures 1 and 2, the aerosol generating article includes an aerosol generating substrate segment 20 and a temperature reduction component 10.

[0048] The aerosol generating article is used in cooperation with an aerosol generating device. Specifically, the aerosol generating device heats and atomizes the aerosol generating substrate segment 20 to generate an aerosol for a user to inhale or for medical, cosmetic, etc.

[0049] The specific structure of the aerosol generating substrate segment 20 is not limited here. For example, in an embodiment, the aerosol generating substrate segment 20 can be made of an atomization medium itself, such as a smoking flavor medium. In other embodiments, the aerosol generating substrate segment 20 can also include a substrate, such as a high-temperature-resistant carbon fiber, and an atomization medium disposed on the substrate. In this way, by providing the substrate, the strength of the aerosol generating substrate segment 20 can be improved, and the substrate can also withstand a certain degree of high temperature without producing an odor.

[0050] The specific composition of the aerosol generating substrate segment 20 is not limited here. For example, in an embodiment, the aerosol generating substrate segment 20 can include a plant component, an auxiliary component, a smoking agent component, a binder component, etc.

[0051] In an embodiment, the plant component is one or a combination of powders formed after crushing processing of tobacco raw materials, tobacco shreds, tobacco stems, tobacco fines, and flavor plants. The plant component is the core source of product flavor. Endogenous substances in the plant component, such as nicotine, enter the human body through atomization, promote the pituitary gland to produce dopamine, and thus obtain a physiological satisfaction.

[0052] In an embodiment, the auxiliary component can be one or a combination of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or a combination of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc powder, and diatomite. The inorganic fillers can provide skeletal support for the plant component, and the inorganic fillers also have micropores, which can improve the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0053] The lubricant includes one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, palmitic acid, or a combination thereof. The lubricant can increase the flowability of the particles, reduce the friction between the particles, make the overall density of the distribution of the particles more uniform, and reduce the pressure required for molding and the wear of the mold.

[0054] The emulsifier includes one or more of polyglycerin fatty acid ester, Tween-80, polyvinyl alcohol, or a combination thereof. The emulsifier can slow down the loss of flavoring substances during storage, increase the stability of the flavoring substances, and improve the sensory quality of the product. The emulsifier (also referred to as a surfactant) can reduce the interfacial tension between water-soluble and water-insoluble components in the mixed system, and form a relatively strong film on the surface of the droplets or a double electric layer on the surface of the droplets due to the charge given by the emulsifier, thereby preventing the droplets from gathering with each other and maintaining a uniform emulsion. The emulsification of two immiscible components can improve the consistency of the quality of the product.

[0055] The function of the smoking agent component is to generate a large amount of steam when heated, thereby increasing the amount of smoke of the smoking article. In an embodiment, the smoking agent may, for example, include one or more of monohydric alcohols (such as menthol), polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol), esters of polyhydric alcohols (such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate), monocarboxylic acids, polycarboxylic acids (such as lauric acid, myristic acid), or fatty esters of polycarboxylic acids (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso-erythritol, glycerol diacetate, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenyl acetate, ethyl vanillate, glycerol tributyrate, lauryl acetate).

[0056] In an embodiment, the binder component is a natural plant extract, a non-ionic modified viscous polysaccharide, and includes one or more of tamarind polysaccharide, pullulan, fucoidan, locust bean gum, guar gum, xyloglucan, or a combination thereof. The binder is in close contact with the interface of the material of the components of the product by wetting, generates intermolecular attraction, and thus plays a role in binding the powders, liquids, and the like of the component materials. At the same time, the use of a natural plant extract, a non-ionic binder can avoid the release of harmful substances such as methanol, formaldehyde, and propylene aldehyde caused by colloid modification, and improve the safety of the product.

[0057] In an embodiment, the aerosol-generating substrate section 20 can also have a light-absorbing material. The light-absorbing material is a material having a high absorption rate for laser light, and can be better adapted to laser heating.

[0058] Exemplarily, the aerosol generating substrate segment 20 can be a granule combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke generating agents and tobacco. The aerosol generating substrate segment 20 is a one-piece structure, for example, a one-piece structure formed by an injection molding, compression molding or extrusion process. The extrusion forming refers to a processing method in which a raw material mixture is added to an extruder, the material is pushed forward by the screw through the action between the extruder barrel and the screw, and various cross-section products or semi-products are continuously formed through the head. The aerosol substrate formed by extrusion forming is in the form of a strip.

[0059] Since the aerosol generating substrate segment 20 is a granule combination, it is a one-piece medium after being heated for smoking or stopping heating, and is not easy to fall apart, solving the problems of the existing thin sheet, filament or scattered granule aerosol generating substrate segment 20, such as sheet loosening, filament components, granule components falling off, and not easy to clean.

[0060] The shape of the aerosol generating substrate segment 20 is not limited, and exemplarily, the aerosol generating substrate segment 20 can be columnar. The cross-sectional shape of the columnar aerosol generating substrate segment 20 can be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), oval, racetrack-shaped, irregular, etc., wherein the irregular refers to other symmetrical or asymmetrical shapes other than the shapes listed above.

[0061] The aerosol generating substrate segment 20 can be provided with an air channel 20a. The air channel 20a in FIG. 2 extends through the aerosol generating substrate segment 20 along the opposite ends in the first direction. In some embodiments, the air channel 20a can also extend through only one end of the aerosol generating substrate segment 20 along the first direction, and the opposite end is a closed end.

[0062] Compared with the air channel 20a extending through one end of the aerosol generating substrate segment 20 along the first direction, the air channel 20a extending through both ends of the aerosol generating substrate segment 20 along the first direction is more conducive to reducing the resistance of the user's smoking.

[0063] The number of air channels 20a can be one or more.

[0064] The air channel 20a can be a straight-through air channel as shown in FIG. 2, which is an air channel extending along a straight line, or in other words, the extension direction of the straight-through air channel is a straight line.

[0065] The air passage 20a can also be a spiral air passage, which is an air passage in a curved shape with a curvature not equal to 0 in at least a partial region along the extension direction. For example, along the extension direction of the spiral air passage, the spiral air passage can be in a structure form with both a curved segment with a curvature not equal to 0 and a straight segment with a curvature equal to 0, or in a structure form with only a curved segment with a curvature not equal to 0 and without a straight segment with a curvature equal to 0. That is, as long as the spiral air passage is not extended along a straight line from the starting point to the ending point of the spiral air passage along the extension direction.

[0066] When the number of air passages 20a is multiple, some of the air passages 20a can be straight-through air passages, and some of the air passages 20a can be spiral air passages.

[0067] The shape of the cross section of the air passage 20a is not limited, for example, the shape of the cross section can be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), oval, runway-shaped, or special-shaped, etc.

[0068] The air passage 20a can extend the airflow path and increase the flow speed of the airflow in the aerosol generating substrate segment 20, so as to increase the impact force of the airflow, so that the aerosol can be uniformly mixed, thereby improving the extraction efficiency and uniformity of the aerosol in the aerosol generating substrate segment 20 and improving the smoking experience of the user.

[0069] Please continue to refer to FIGS. 1 to 3, the cooling component 10 of the embodiment of the present application is arranged at one end of the aerosol generating substrate segment 20 along the first direction. The cooling component 10 comprises a rotating member 11 and a shell 12 with a cooling channel 12a, and the rotating member 11 is rotatably arranged in the cooling channel 12a to rotate by the action of the airflow during the smoking process of the aerosol generating article.

[0070] The first direction can be any one direction of the aerosol generating substrate segment 20, for example, please refer to FIG. 1, the first direction can be the height direction of the aerosol generating substrate segment 20, in other embodiments, the first direction can also be the length direction or the width direction of the aerosol generating substrate segment 20 (wherein the height direction, the length direction and the width direction are perpendicular to each other), and the first direction can also be arranged obliquely relative to at least two of the length direction, the width direction and the height direction of the aerosol generating substrate segment 20.

[0071] Exemplarily, please refer to FIG. 1, for the aerosol generating substrate segment 20 in a columnar shape, the first direction can be the elongation direction (i.e. the height direction) of the aerosol generating substrate segment 20.

[0072] The shell 12 mainly plays a supporting role, and exemplarily, the shell 12 can be made of paper or a high polymer material, etc. The shell 12 can also be a hard tube or a soft tube, and the inside of the shell 12 has a cavity forming the cooling channel 12a.

[0073] The cooling component 10 is mainly used to cool the aerosol. Specifically, the cooling channel 12a has an air inlet end and an air outlet end, the air inlet end is in communication with the aerosol generating substrate section 20, when the aerosol generating substrate section 20 is heated, the aerosol generating substrate section 20 releases the aerosol, and during the user's puffing, the external airflow carries the aerosol into the cooling channel 12a from the air inlet end, and then flows out from the air outlet end. It should be noted that for the aerosol generating substrate section 20 provided with the air channel 20a, since at least part of the micropores or gaps in the wall material of the aerosol generating substrate section 20 are in communication with the air channel 20a, the aerosol released by the aerosol generating substrate section 20 can enter the air channel 20a through the micropores or gaps in communication with the air channel 20a, and then enter the cooling channel 12a from the air channel 20a, and for the aerosol generating substrate section 20 without the air channel 20a, the aerosol released by the aerosol generating substrate section 20 can directly enter the cooling channel 12a. The airflow can exert a driving force on the rotating member 11 when passing through the cooling channel 12a, so as to realize the rotation of the rotating member 11.

[0074] The rotating member 11 can be casted from metals such as iron, cobalt, nickel, and their corresponding alloys, or can be prepared from one material or a mixture of multiple materials such as PEEK (poly(ether-ether-ketone)), ABS (Acrylonitrile Butadiene Styrene plastic), PA (polyamide resin), PLA (Polylactic acid), PET (polyethylene terephthalate), etc. by extrusion, film pressing, hot pressing, or injection molding, etc.

[0075] The number of the rotating member 11 can be one or more than one, but when the number of the rotating member 11 is too large, the trapping rate of the aerosol is too large, which can reduce the utilization rate of the aerosol, therefore, preferably, the number of the rotating member 11 can be 1-4 (including the end values), for example, the number of the rotating member 11 can be 1, 2, 3, or 4. More preferably, the number of the rotating member 11 can be 1-2 (including the end values).

[0076] The structure of the rotating member 11 is not limited as long as it can rotate. When the number of the rotating member 11 is more than one, all the rotating members 11 can adopt the same structure, or at least two different structures.

[0077] Please refer to FIG. 2 and FIG. 5, the rotation axis Z of the rotating member 11 can be parallel to the extension direction of the cooling channel 12a, or can intersect the extension direction of the cooling channel 12a, as long as the rotating member 11 can rotate by the action of the airflow.

[0078] More preferably, the angle between the rotation axis Z of the rotating member 11 and the extension direction of the cooling channel 12a is not greater than 10 degrees, that is, the angle between the rotation axis Z of the rotating member 11 and the extension direction of the cooling channel 12a can be equal to 0 degrees (that is, the rotation axis Z can be parallel to the extension direction of the cooling channel 12a), or the angle between the rotation axis Z of the rotating member 11 and the extension direction of the cooling channel 12a can be greater than 0 degrees and less than or equal to 10 degrees (that is, the rotation axis Z can be substantially parallel to the extension direction of the cooling channel 12a).

[0079] It should be noted that the extension direction of the cooling channel 12a can be parallel to the first direction, that is, the cooling channel 12a can extend along the first direction, or the angle between the extension direction of the cooling channel 12a and the first direction can be greater than 0 degrees and less than or equal to 10 degrees.

[0080] In order to facilitate the installation of the rotating member 11, for example, please refer to FIG. 2 and FIG. 3, the cooling member 10 can be provided with a rotating shaft 13, the rotating shaft 13 extends into the cooling channel 12a, and the rotating member 11 is rotatably arranged on the rotating shaft 13, that is, the rotating member 11 can rotate around the rotating shaft 13.

[0081] Please refer to FIG. 2 and FIG. 3, the cooling member 10 can be provided with a mounting bracket 14 at the air outlet end of the cooling channel 12a, the mounting bracket 14 can be connected with the shell 12, and the rotating shaft 13 is mounted on the mounting bracket 14.

[0082] In other embodiments, the mounting bracket 14 can also be arranged at the air inlet end of the cooling channel 12a.

[0083] Please refer to FIG. 2, for the cooling member 10 in which the angle between the rotation axis Z of the rotating member 11 and the extension direction of the cooling channel 12a is not greater than 10 degrees, the angle between the axial center line of the rotating shaft 13 and the extension direction of the cooling channel 12a is also not greater than 10 degrees.

[0084] Please refer to FIG. 2, FIG. 5, FIG. 7, and FIG. 8, one rotating member 11 can be arranged on the rotating shaft 13, or multiple rotating members 11 can be arranged on the rotating shaft 13.

[0085] When the number of rotating members 11 is greater than one, the cooling member 10 can be provided with only one rotating shaft 13 as shown in FIGS. 7 and 8, all the rotating members 11 can be arranged on the same rotating shaft 13, or the cooling member 10 can be provided with multiple rotating shafts 13, and at least one rotating member 11 is arranged on each rotating shaft 13. However, arranging all the rotating members 11 on the same rotating shaft 13 can facilitate the installation of the rotating members 11 and is more conducive to the airflow passing through the cooling channel 12a.

[0086] Referring to FIG. 5, the length H of the rotating member 11 along the extension direction of the rotating axis Z can be designed as needed, and exemplarily, the length H of the rotating member 11 along the extension direction of the rotating axis Z can be 3 mm to 20 mm (including the end point value), such as 3 mm, 5 mm, 10 mm, 12 mm, 15 mm, 20 mm, etc. However, when the length H is greater than 13 mm, the diffusion path of the aerosol is relatively long, and the resistance is relatively large, and when the length H is less than 5 mm, the diffusion path of the aerosol is too short, and the cooling effect is poor. Therefore, more preferably, the length H of the rotating member 11 along the extension direction of the rotating axis Z can be 5 mm to 13 mm (including the end point value).

[0087] Referring to FIG. 6, the maximum diameter D of the rotating member 11 rotating around the rotating axis Z can also be designed as needed, and exemplarily, the maximum diameter D of the rotating member 11 rotating around the rotating axis Z can be 3 mm to 10 mm (including the end point value), such as 3 mm, 5 mm, 8 mm, 10 mm, etc. However, when the maximum diameter D is less than 4 mm, the resistance is large, and the suction experience is poor, and when the maximum diameter D is greater than 9 mm, the suction is weak, and the suction experience is also poor. Therefore, more preferably, the maximum diameter D of the rotating member 11 rotating around the rotating axis Z can be 4 mm to 9 mm (including the end point value), and more preferably, the maximum diameter D of the rotating member 11 rotating around the rotating axis Z can be 5 mm to 8.5 mm (including the end point value).

[0088] The cooling member 10 of the embodiment of the present application can rotate the rotating member 11 by means of the airflow during the suction process of the aerosol generating article by arranging the rotating member 11 in the cooling channel 12a of the shell 12, and the rotating member 11 can convert the internal energy of the aerosol into kinetic energy during the rotation process, and promote the aerosol to exchange heat with the external airflow sufficiently to reduce the temperature of the aerosol. The cooling member 10 has a simple structure and good cooling effect, and can effectively improve the comfort of the user during suction. In addition, the rotating member 11 can not only disperse and reshape the aerosol during the rotation process to form a suitable particle size to improve the taste, but also separate the light and heavy components in the aerosol to make the heavy components stay in the cooling channel 12a to reduce the harm of the aerosol to the human body.

[0089] For the aerosol generating substrate segment 20 of the embodiment of the present application, since the aerosol generating substrate segment 20 has a porous structure, the extraction efficiency of the aerosol is high, and the flow rate of the airflow carrying the aerosol entering the cooling channel 12a is fast, therefore, the aerosol generating substrate segment 20 cooperates with the cooling component 10, and a better cooling effect can be achieved.

[0090] It should be noted that the cooling component 10 of the embodiment of the present application is not limited to being used in cooperation with the aerosol generating substrate segment 20 of the embodiment of the present application, according to design needs, the cooling component 10 can also be used in cooperation with other types of aerosol generating substrate segments 20 (such as thin sheet, filament or loose granular aerosol generating substrate segments 20), which is not limited herein.

[0091] In an embodiment, referring to FIGS. 3 and 4, for the convenience of description, a rotating member 11 of one structure can be referred to as a first rotating member 11a, the first rotating member 11a includes a main body 11a1 and a plurality of blades 11a2, and the plurality of blades 11a2 are annularly arranged on the outer circumferential side of the main body 11a1.

[0092] The number of blades 11a2 is not limited, but when the number of blades 11a2 is less than 3, the particle size of the aerosol after passing through the cooling component 10 is 1 nm to 300 nm (including the end point value), the color of the aerosol is cyan or blue, and the taste of the inlet is relatively poor, and when the number of blades 11a2 is greater than 7, the particle size of the aerosol after passing through the cooling component 10 is greater than 0.9 μm, the particle size of the aerosol is too large, and the aerosol is easy to settle in the inside of the aerosol generating article, thereby causing the utilization rate of the aerosol to decrease, therefore, preferably, the number of blades 11a2 can be 3 to 7 (including the end point value), for example, the number of blades 11a2 can be 3, 4, 5, 7, etc. More preferably, the number of blades 11a2 can be 3 to 5 (including the end point value).

[0093] Referring to FIGS. 7 and 8, when the cooling component 10 is provided with a plurality of first rotating members 11a, the number of blades 11a2 of all the first rotating members 11a can be the same, or the number of blades 11a2 of at least two first rotating members 11a can be different, for example, the number of blades 11a2 of the two first rotating members 11a shown in FIG. 7 is 3, and the number of blades 11a2 of two first rotating members 11a among the three first rotating members 11a shown in FIG. 8 is 4, and the number of blades 11a2 of the third first rotating member 11a is 3.

[0094] Referring to FIG. 5, the vane 11a2 can be arranged obliquely relative to the rotation axis Z of the first rotating member 11a. Since the efficiency of converting the internal energy of the aerosol into kinetic energy is relatively low when the oblique angle θ of the vane 11a2 relative to the rotation axis Z is too small or too large, the oblique angle θ of the vane 11a2 relative to the rotation axis Z is preferably 1° to 45° (including the end values), for example, the oblique angle θ can be 1°, 15°, 10°, 20°, 30°, 40°, 45°, etc. More preferably, the oblique angle θ of the vane 11a2 relative to the rotation axis Z is 20° to 35° (including the end values).

[0095] For example, in a specific embodiment, the angle between the axial center line of the rotating shaft 13 and the extension direction of the cooling channel 12a is equal to 10 degrees, three first rotating members 11a are arranged on the rotating shaft 13, the length of the first rotating member 11a along the extension direction of the rotation axis Z is 15 mm, the rotating diameter of the first rotating member 11a is 7.2 mm, each first rotating member 11a has three vanes 11a2, the material of the vane 11a2 is iron, and the oblique angle of the vane 11a2 relative to the rotation axis Z is 45°. The aerosol generating article with the cooling member 10 is inserted into the aerosol generating device for heating, and the aerosol generating substrate section 20 generates aerosol with a relatively high temperature after being heated. During the user's puffing, the airflow carrying the aerosol with a relatively high temperature enters the cooling channel 12a, causing the first rotating member 11a to rotate. The first rotating member 11a converts the internal energy of the aerosol into kinetic energy during rotation, and the temperature of the aerosol decreases. The aerosol flowing out of the cooling channel 12a is detected, and the detection result is that the temperature of the aerosol is <45℃, and the particle size of the aerosol is 0.56 μm to 0.7 μm. Compared with the aerosol generating article without the cooling member 10, the temperature decreases by more than 15℃, the user does not feel the mouth burning during puffing, and the puffing experience is good.

[0096] In another specific embodiment, the angle between the axial center line of the rotating shaft 13 and the extension direction of the cooling channel 12a is equal to 10 degrees, three first rotating members 11a are arranged on the rotating shaft 13, the length of the first rotating member 11a along the extension direction of the rotating axis Z is 13 mm, the rotating diameter of the first rotating member 11a is 6.5 mm, each first rotating member 11a has four blades 11a2, the material of the blade 11a2 is polyamide resin, and the inclination angle of the blade 11a2 relative to the rotating axis Z is 35°. The other structure of the aerosol generating article with the cooling member 10 is the same as that of the aerosol generating article described in the previous specific embodiment. The detection results are that the temperature of the aerosol is <45℃, and the particle size of the aerosol is 0.6 μm-0.75 μm by using the same detection method as the previous specific embodiment. Compared with the aerosol generating article without the cooling member 10, the temperature drops by more than 15℃, the user does not feel the mouth burning when smoking, and the smoking experience is good.

[0097] In another embodiment, for ease of description, the rotating member of the second structure can be referred to as a second rotating member 11b. The second rotating member 11b is in the shape of a column, and a plurality of helical grooves 11b1 are arranged on the outer side wall of the second rotating member 11b. Each helical groove 11b1 extends through the opposite ends of the second rotating member 11b in the axial direction, and the axial direction of the second rotating member 11b is actually the extension direction of the rotating axis Z of the second rotating member 11b.

[0098] The curvature of at least part of the extension direction of the helical groove 11b1 is not 0. For example, as shown in FIG. 9, the entire helical groove 11b1 can be in the shape of a helix with a curvature not equal to 0 along the extension direction of the helical groove 11b1. In other embodiments, the helical groove 11b1 can have a curvature not equal to 0 along part of the extension direction, and a curvature equal to 0 along another part, that is, the other part can extend linearly.

[0099] The number of helical grooves 11b1 is not limited. However, when the number of helical grooves 11b1 is too small, the efficiency of converting the internal energy of the aerosol into kinetic energy is low, and when the number of helical grooves 11b1 is too large, the aerosol trapping rate is large. Therefore, preferably, the number of helical grooves 11b1 can be 2-7 (including the end point value), for example, the number of helical grooves 11b1 can be 2, 4, 5, 7, etc. More preferably, the number of helical grooves 11b1 can be 3-5 (including the end point value).

[0100] When the cooling member 10 is provided with a plurality of second rotating members 11b, the number of helical grooves 11b1 of all the second rotating members 11b can be the same, or the number of helical grooves 11b1 of at least two second rotating members 11b can be different.

[0101] In a specific embodiment, the cooling member 10 is provided with a second rotating member 11b, the angle between the axial center line of the rotating shaft 13 and the extension direction of the cooling channel 12a is equal to 10 degrees, the length of the second rotating member 11b along the extension direction of the rotating axis Z is 12 mm, the rotating diameter of the second rotating member 11b is 7.2 mm, and the second rotating member 11b has four spiral grooves 11b1. The other structure of the aerosol generating article with the cooling member 10 is the same as that of the aerosol generating article in the previous specific embodiment. The detection result is that the temperature of the aerosol is <45℃, and the particle size of the aerosol is 0.44 μm-0.68 μm by using the same detection method as in the previous specific embodiment. Compared with the aerosol generating article without the cooling member 10, the temperature drops by more than 15℃, the user will not feel the mouth burning when smoking, and the smoking experience is better.

[0102] It should be noted that when the number of rotating members 11 provided in the cooling member 10 is greater than one, the rotating members 11 are not limited to one structure form, and the rotating members 11 can be a combination of multiple different structure forms. For example, referring to FIGS. 11 and 12, the cooling member 10 can be provided with a first rotating member 11a and a second rotating member 11b at the same time.

[0103] For the cooling member 10 with the rotating shaft 13 and the angle between the axial center line of the rotating shaft 13 and the extension direction of the cooling channel 12a is not greater than 10 degrees, for example, referring to FIG. 11, the first rotating member 11a and the second rotating member 11b can be provided on the same rotating shaft 13, and the second rotating member 11b can be located on the side away from the air inlet end of the cooling channel 12a.

[0104] For example, referring to FIG. 12, the first rotating member 11a can also be provided on each of the opposite sides of the second rotating member 11b.

[0105] It should be noted that the first rotating member 11a and the second rotating member 11b are not limited to the above two setting modes, and in other embodiments, the first rotating member 11a and the second rotating member 11b can also adopt other arrangement modes.

[0106] In an embodiment, at least part of the shell 12 can be a light-transmitting structure, and the setting position of the light-transmitting structure at least corresponds to the setting position of the rotating member 11.

[0107] The light-transmitting structure refers to a structure through which light can pass, so that the user can see the structure inside the cooling channel 12a. According to the design needs, part of the shell 12 can be a light-transmitting structure, which is equivalent to separately providing a light-transmitting window on the shell 12, or the entire shell 12 can be a light-transmitting structure.

[0108] For the convenience of processing and manufacturing, the entire shell 12 can adopt a light-transmitting structure. For example, the shell 12 can adopt transparent formed paper, polylactic acid film, glass paper, or other transparent paper materials.

[0109] The setting position of the light-transmitting structure at least corresponds to the setting position of the rotating member 11, which means that the user can see the rotating member 11 in the cooling channel 12a through the light-transmitting structure. Thus, in the user's smoking process, the user can appreciate the rotating rotating member 11 to bring the user a visual experience.

[0110] In an embodiment, referring to FIG. 2, the sidewall of the shell 12 is provided with an air hole 12b in communication with the cooling channel 12a.

[0111] The purpose of setting the air hole 12b is to make the external airflow enter the cooling channel 12a from the air hole 12b and mix with the aerosol in the cooling channel 12a in the user's smoking process.

[0112] The number of air holes 12b can be one or more. Preferably, the number of air holes 12b can be 2-12.

[0113] When the number of air holes 12b is multiple, the multiple air holes 12b can be uniformly distributed along the circumference of the shell 12, or other distribution modes such as random distribution can be adopted.

[0114] The setting position of the air hole 12b on the sidewall of the shell 12 is not limited. For example, the setting position of the air hole 12b can be close to the air inlet end of the cooling channel 12a, or close to the air outlet end of the cooling channel 12a, that is, the setting position of the air hole 12b can be close to the aerosol generating substrate section 20, or away from the aerosol generating substrate section 20.

[0115] When the number of air holes 12b is multiple, a part of the air holes 12b can be set close to the air inlet end of the cooling channel 12a, and the other part of the air holes 12b can be set close to the air outlet end of the cooling channel 12a.

[0116] The shape of the cross section of the air hole 12b is not limited. For example, the shape of the cross section of the air hole 12b can be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, racetrack-shaped, special-shaped, etc.

[0117] The hole surface area of the air hole 12b can be 0.01mm 2 -0.2mm 2 (including the end value), for example, the hole surface area can be 0.01mm 2 , 0.05mm 2 , 0.1mm 2 , 0.15mm 2 , 0.2mm2 However, when the hole surface area of the air hole 12b is less than 0.04 mm 2 , the ventilation amount is small, and when the hole surface area is greater than 0.12 mm 2 , the ventilation amount is too large, which reduces the concentration of the aerosol and thus affects the smoking experience, and therefore, preferably, the hole surface area of the air hole 12b can be 0.04 mm 2 ~ 0.12 mm 2 (inclusive of the end values).

[0118] Since the particle size of the aerosol is 1 nm ~ 300 nm (inclusive of the end values), the mouthfeel of the inlet is relatively poor, and therefore, by providing the air hole 12b, the airflow from the outside can enter the cooling channel 12a from the air hole 12b and mix with the aerosol in the cooling channel 12a under the action of the rotating member 11, thereby not only improving the uniformity of the mixing of the aerosol and the airflow and making the distribution of the aerosol more uniform, but also enabling the particle size of the aerosol to be controlled within the range of 0.38 μm ~ 0.78 nm (inclusive of the end values), thereby better improving the smoking experience of the user.

[0119] In addition, when the particle size of the aerosol is 1 nm ~ 300 nm, the color of the aerosol is cyan or blue, and within this particle size range, the smaller the particle size, the more obvious the blue color, and when the particle size of the aerosol is 0.38 μm ~ 0.78 nm, the color of the aerosol is white, and within this particle size range, the larger the particle size, the more obvious the white color, and therefore, for the aerosol generating substrate segment 20 of the shell 12 at least in the region of the light-transmitting structure, by providing the air hole 12b, the aerosol in the cooling channel 12a can also be ensured to present white color, thereby improving the visual experience of the user.

[0120] In an embodiment, referring to FIGS. 1 and 2, the aerosol generating article further includes a functional segment 30, which is provided at one end of the temperature lowering member 10 away from the aerosol generating substrate segment 20, and the functional segment 30 at least includes a filter segment 31.

[0121] The filter segment 31 is used to contact the user's oral cavity when the user smokes, so as to filter the aerosol.

[0122] The material of the filter segment 31 includes but is not limited to one or more combinations of polyethylene (PE), PLA, butylene adipate-co-terephthalate (PBAT), polypropylene (PP), acetate fiber, and propylene fiber material.

[0123] It should be noted that the aerosol-generating article relies on the aerosol-generating substrate segment 20 to generate aerosol, and the functional segment 30 does not generate aerosol.

[0124] In some embodiments, the aerosol-generating article can be free of the functional segment 30, for example, the aerosol-generating device can be provided with a mouthpiece which can be reusable or disposable, and the mouthpiece is used in cooperation with the aerosol-generating article free of the functional segment 30 to replace the functional segment 30.

[0125] In the description of the present application, the description with reference to the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet some embodiments", or "exemplary" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the exemplary description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, a person skilled in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0126] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A cooling component for an aerosol-generating product, comprising: rotating parts; The housing has a cooling channel, and the rotating member is rotatably arranged in the cooling channel to rotate under the action of airflow during the inhalation process of the aerosol-generating article. 2 . The cooling component according to claim 1 , wherein an angle between the rotation axis of the rotating member and the extension direction of the cooling channel is no greater than 10 degrees. 3 . The cooling component according to claim 1 , wherein the rotating member comprises a first rotating member, the first rotating member comprises a main body and a plurality of blades, and the plurality of blades are arranged around an outer circumference of the main body.

4. The cooling component according to claim 3, wherein the number of the blades is 3 to 7; and / or, The blades are arranged to be tilted relative to the rotation axis of the first rotating member, and the tilt angle of the blades relative to the rotation axis is 1° to 45°.

5. The cooling component according to claim 1 or 2, wherein the rotating member comprises a second cylindrical rotating member, and the outer side wall of the second rotating member has a plurality of spiral grooves arranged at intervals, and each of the spiral grooves passes through two opposite ends of the second rotating member in the axial direction. The cooling component according to claim 5 , wherein the number of the spiral grooves is 2 to 7. 7 . The cooling component according to claim 1 , comprising a rotating shaft extending into the cooling channel, and the rotating member is rotatably disposed on the rotating shaft. The cooling component according to claim 7 , wherein a plurality of rotating members are provided on the rotating shaft.

9. The cooling component according to claim 8, the multiple rotating parts include a first rotating part and a second rotating part; the first rotating part includes a main body and a plurality of blades, the plurality of blades are arranged on the outer peripheral side of the main body, the second rotating part is columnar, and the outer side wall of the second rotating part has a plurality of spiral grooves arranged at intervals, and each of the spiral grooves passes through the opposite ends of the axial direction of the second rotating part.

10. The cooling component according to claim 9, wherein the angle between the axial centerline of the rotating shaft and the extension direction of the cooling channel is not greater than 10 degrees; The second rotating member is located on a side of the first rotating member away from the air inlet end of the cooling channel; or The first rotating members are respectively disposed on two opposite sides of the second rotating member. The cooling component according to claim 1 or 2, wherein a side wall of the shell is provided with an air hole communicating with the cooling channel.

12. The cooling component according to claim 11, wherein the air hole is provided near an air inlet end or an air outlet end of the cooling channel; and / or The surface area of ​​the pores is 0.01 to 0.2 mm 2 .

13. The cooling component according to claim 1 or 2, wherein at least a portion of the housing is a light-transmitting structure, and a location of the light-transmitting structure at least corresponds to a location of the rotating member.

14. The cooling component according to claim 1 or 2, wherein the number of the rotating parts is 1 to 4; and / or, The length of the rotating member along the extension direction of the rotation axis is 3 mm to 20 mm; and / or, The maximum diameter of the rotating member rotating around the rotation axis is 3 mm to 10 mm.

15. An aerosol-generating article comprising: aerosol-generating matrix segment; The cooling component according to any one of claims 1 to 14 is arranged at one end of the aerosol generating substrate segment along the first direction.

16. The aerosol-generating article according to claim 15, further comprising a functional segment, wherein the functional segment is arranged at an end of the cooling component away from the aerosol-generating substrate segment, and the functional segment at least comprises a filtering segment.

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