Atomization base, aerosol generating device and aerosol generating product

Abstract

An atomization base (13), an aerosol generating device (10) and an aerosol generating product (20). The atomization base (13) is provided with a mounting recess (13a) and an air inlet (13d) in communication with the mounting recess (13a), the mounting recess (13a) being used for accommodating at least part of the aerosol generating product (20). The aerosol generating product (20) comprises a plurality of first air channels (212). The atomization base (13) and the aerosol generating product (20) move relative to each other, such that the air inlet (13d) is in communication with some first air channels (212) among the plurality of first air channels (212).

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is based on a Chinese patent application with application number 202310988178.0 filed on August 7, 2023, and claims the priority of the Chinese patent application, the entire contents of which are hereby incorporated by reference.TECHNICAL FIELD

[0002] The present application relates to the technical field of smoking, in particular to an atomization base, an aerosol generating device and an aerosol generating article.BACKGROUND

[0003] An aerosol generating article generally produces an aerosol by heating without combustion. In particular, the aerosol generating article is provided with an aerosol generating substrate, the aerosol generating substrate is heated by an external heat source to a level just enough to emit a fragrance. The aerosol generating substrate does not burn, but is loaded with an atomizing agent, and the atomizing agent is released by heating when in use to form a smoke.

[0004] In the related art, there is a heating method in which an outer side wall of an aerosol generating substrate having a plurality of gas passages is subjected to a single-sided local heating. In this heating method, each time only a part of the outer side wall of the aerosol generating substrate is heated, and another part of the outer side wall is heated by rotating the aerosol generating substrate after the single heating is completed.

[0005] However, in the heating process, the aerosol is generated only in a few gas passages located near the heated outer side wall, and is hardly generated in other gas passages. In the inhaling process of the user, the outside gas flow will be dispersed into each gas passage, and only the gas flow entering the gas passage having the aerosol can carry the aerosol out, thereby resulting that it is difficult for about 50% of the aerosol to be stably sucked out, so that the capture rate of the aerosol is relatively low.SUMMARY

[0006] In view of this, in embodiments of the present application, it is desirable to provide an atomization base, an aerosol generating device, and an aerosol generating article, for improving the capture rate of aerosol.

[0007] In order to achieve the above object, an embodiment of the present application provides an atomization base for an aerosol generating device. The atomization base is formed with a mounting groove and a gas inlet in communication with the mounting groove. The mounting groove is configured to receive at least a portion of an aerosol generating article, and the aerosol generating article includes a plurality of first gas passages.

[0008] The atomization base and the aerosol generating article move relative to each other so that the gas inlet is in communication with part of the plurality of the first gas passages.

[0009] In one embodiment, the atomization base may include a bottom wall and a side wall located on a side of the bottom wall, the bottom wall and the side wall may form and enclose the mounting groove, and the gas inlet may be provided in the bottom wall or the side wall.

[0010] In one embodiment, the bottom wall may have an outer surface facing away from the mounting groove and an inner surface close to the mounting groove, the gas inlet may be provided in the bottom wall, the gas inlet may have a first opening located on the outer surface and a second opening located on the inner surface, and a cross-sectional dimension of the first opening may be smaller than a cross-sectional dimension of the second opening.

[0011] In one embodiment, the first opening may be circular.

[0012] In one embodiment, the second opening may be in a shape of an elongated strip extending in a circumferential direction of the bottom wall.

[0013] In one embodiment, the first opening may be circular, and the first opening may have a diameter ranging from 0.5 mm to 1.5 mm.

[0014] In one embodiment, the gas inlet may include a first segment having the first opening and a second segment having the second opening, and at least one of the first segment and the second segment may be provided as a constant cross-section structure.

[0015] In one embodiment, a cross-sectional dimension of the gas inlet may gradually increase from the first opening to the second opening.

[0016] In one embodiment, the gas inlet may be provided in the side wall, and the gas inlet may be in a shape of a circumferentially closed hole.

[0017] In one embodiment, the gas inlet may be provided in the side wall, an end of the mounting groove opposite to the bottom wall may have a mounting opening, and the gas inlet may be in a shape of a notch that is open on a side close to the mounting opening.

[0018] In one embodiment, the gas inlet may be provided in the side wall, and the gas inlet may extend in a circumferential direction of the side wall.

[0019] In one embodiment, the gas inlet may be provided in the side wall, and portions of the side wall may project into the mounting groove to form annular sealing ribs.

[0020] In one embodiment, the gas inlet may be provided in the side wall, the number of the annular sealing ribs may be at least two, and the annular sealing ribs may be respectively provided on a side of the gas inlet close to the mounting opening and on a side of the gas inlet away from the mounting opening.

[0021] In one embodiment, the bottom wall of the mounting groove may be provided with a driving mechanism avoidance opening.

[0022] Another embodiment of the present application provides an aerosol generating device including: a housing, an atomization base described above, a laser generating device provided in the housing, and a rotation driving mechanism.

[0023] The housing is provided with an insertion channel having an insertion port at an end of the insertion channel.

[0024] The atomization base is provided in the housing and is located at an end of the insertion channel opposite to the insertion port, and the mounting groove is in communication with the insertion channel.

[0025] The laser generating device is configured to heat a portion of an outer side wall of the aerosol generating article.

[0026] The rotation driving mechanism is configured to drive one of the atomization base and the aerosol generating article to rotate, so that the gas inlet is in communication with the first gas passages within an irradiation range of the laser generating device.

[0027] In one embodiment, the laser generating device may be positioned outside the insertion channel, and an emitting end of the laser generating device may face the insertion channel.

[0028] In one embodiment, the rotation driving mechanism may have a connection joint. The connection joint may be connected with the atomization base; or, the bottom wall of the mounting groove may be provided with a driving mechanism avoidance opening, and the connection joint may pass through the driving mechanism avoidance opening to extend into the mounting groove and connect with the aerosol generating article.

[0029] Still another embodiment of the present application provides an aerosol generating article including: an aerosol generating substrate, and a separation section.

[0030] The aerosol generating substrate has a gas intake side and a gas outlet side that are opposite to each other. The aerosol generating substrate includes a base portion and a plurality of first gas passages surrounding a circumference of the base portion, each of the first gas passages extends from the gas intake side towards the gas outlet side, and at least an end of each of the first gas passages close to the gas intake side is an open end.

[0031] The separation section is provided on the gas intake side, the separation section has a plurality of gas intake channels spaced apart from each other, the separation section separates the plurality of the first gas passages from each other by the gas intake channels, and each of the gas intake channels is in communication with at least one of the first gas passages.

[0032] In one embodiment, the gas intake channels may be in communication with the first gas passages in one-to-one correspondence.

[0033] In one embodiment, the number of the first gas passages may be at least three, and each of the gas intake channels may be in communication with two adjacent first gas passages of the first gas passages.

[0034] In one embodiment, the aerosol generating substrate may include a plurality of protrusions surrounding a circumference of the base portion, and each of the first gas passages may be formed between two adjacent protrusions of the protrusions.

[0035] In one embodiment, the base portion may be provided with a second gas passage inside the base portion, the second gas passage extending through the gas intake side and the gas outlet side. The separation section may include a separator and a rotation connector. The separator may include a shielding portion and the plurality of gas intake channels surrounding a circumference of the shielding portion, the shielding portion shields a gas passage port of the second gas passage on the gas intake side, and the rotation connector is provided on a side of the separator facing away from the aerosol generating substrate.

[0036] In one embodiment, the base portion may be provided with a second gas passage inside the base portion, the second gas passage extending through the gas intake side and the gas outlet side. The separation section may include a separator and a rotation connector. The separator may include a blocking channel and the plurality of gas intake channels surrounding a circumference of the blocking channel, the blocking channel is in communication with the second gas passage, and the rotation connector is provided at least in the blocking channel to block the second gas passage.

[0037] An embodiment of the present application provides an atomization base, an aerosol generating device, and an aerosol generating article, wherein the atomization base is formed with a mounting groove and a gas inlet in communication with the mounting groove, the mounting groove is configured to receive at least a part of the aerosol generating article having a plurality of first gas passages, and the atomization base and the aerosol generating article move relative to each other so that the gas inlet is in communication with part of the plurality of first gas passages. Taking the installation of the atomization base in the aerosol generating device having a laser generating device as an example, when the aerosol generating article having an aerosol generating substrate is inserted into the mounting groove of the atomization base, the gas inlet only communicates with part of the first gas passages of the aerosol generating substrate, and the external gas flow enters the first gas passages in communication with the gas inlet through the gas inlet. Further, since the rotation driving mechanism of the aerosol generating device drives one of the atomization base and the aerosol generating article to rotate, so that the gas inlet can be in communication with the first gas passages located within the irradiation range of the laser generating device, the aerosol generated by heating of the aerosol generating substrate will enter the first gas passages in communication with the gas inlet. That is, both the external gas flow and the aerosol generated by the heating of the aerosol generating substrate enter the first gas passages in communication with the gas inlet, a large amount of gas flow thus can carry the aerosol out of the first gas passages during the user's inhaling process, and the capture rate of the aerosol can reach over 90%, which can effectively improve the capture rate of the aerosol.BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG. 1 is a schematic structural view of an aerosol generating device according to an embodiment of the present application, which also shows an aerosol generating article, wherein a dashed arrow in the figure indicates a direction of gas flow, and side-by-side arrows located on a side of a laser generating device indicate a laser irradiation direction; FIG. 2 is a schematic structural view of a atomization base and a rotation driving mechanism shown in FIG. 1; FIG. 3 is a schematic structural view of the atomization base shown in FIG. 2; FIG. 4 is a cross-sectional view of the atomization base shown in FIG. 2; FIG. 5 is a schematic structural view of the aerosol generating article shown in FIG. 1; FIG. 6 is a schematic structural view of the aerosol generating article shown in FIG. 5 omitting an outer wrap layer; FIG. 7 is a schematic structural view of an aerosol generating substrate shown in FIG. 6; FIG. 8 is a schematic structural view of a separation section shown in FIG. 6; FIG. 9 is a schematic structural view of a separator shown in FIG. 8; FIG. 10 is a view taken along a direction A of FIG. 6 in which a functional section is omitted; FIG. 11 is a schematic view of the separation section shown in FIG. 6 and the aerosol generating substrate in another communication direction, the perspective of figure is the same as the direction A of FIG. 6; FIG. 12 is a schematic structural view of another separator according to an embodiment of the present application. FIG. 13 is a schematic structural view of another aerosol generating device according to an embodiment of the present application, which also shows an aerosol generating article, wherein a dashed arrow in the figure indicates a direction of gas flow, and side-by-side arrows located on a side of a laser generating device indicate a laser irradiation direction; FIG. 14 is a schematic structural view of a atomization base and a rotation driving mechanism shown in FIG. 13; FIG. 15 is a schematic structural view of the atomization base shown in FIG. 14; FIG. 16 is a schematic structural view of another atomization base according to an embodiment of the present application. FIG. 17 is a schematic structural view of the aerosol generating article shown in FIG. 13; FIG. 18 is a schematic structural view of the aerosol generating article shown in FIG. 17 omitting an outer wrapping layer; and FIG. 19 is a schematic structural view of a separation section shown in FIG. 18. DETAILED DESCRIPTION

[0039] Embodiments of the present application provide an aerosol generating device 10. Referring to FIGS. 1 to 19, the aerosol generating device 10 can be used in conjunction with an aerosol generating article 20 having a plurality of first gas passages 212.

[0040] Specifically, the aerosol generating device 10 heats and atomizes the aerosol generating article 20 to generate an aerosol for a user to inhale it or for use it in medicine, beauty, or the like.

[0041] Referring to FIGS. 1 and 13, the aerosol generating device 10 includes a housing 11, an atomization base 13, a laser generating device 12, and a rotation driving mechanism 14.

[0042] The housing 11 is provided with an insertion channel 11a, the insertion channel has an insertion port 11b at an end of the insertion channel, and the aerosol generating article 20 is inserted into the insertion channel 11a through the insertion port.

[0043] Referring to FIGS. 1 and 13, after the aerosol generating article 20 is inserted into the insertion channel 11a, at least a portion of the aerosol generating article 20 is located in the insertion channel 11a.

[0044] Referring to FIGS. 2 to 4 and 14 to 16, the atomization base 13 is formed with a mounting groove 13a and a gas inlet 13d in communication with the mounting groove 13a. The mounting groove 13a is configured to receive at least a portion of the aerosol generating article 20.

[0045] The atomization base 13 is arranged in the housing 11, and is located at an end of the insertion channel 11a opposite to the insertion port 11b, and the mounting groove 13a is in communication with the insertion channel 11a.

[0046] The mounting groove 13a of the atomization base 13 is configured to limit the displacement of the aerosol generating article 20. Specifically, the mounting groove 13a has a mounting opening 13b on an end of the mounting groove, the mounting opening 13b faces the insertion port 11b, and an end of the aerosol generating article 20 extends into the mounting groove 13a from the mounting opening 13b.

[0047] The material of the atomization base 13 is not limited. For example, the material of the atomization base 13 may be silica gel, TPU (Thermoplastic Urethane), PLA (polylactic acid), PC (Polycarbonate), PEEK (polyetheretherketone), PTFE (Polytetrafluoroethylene), or the like.

[0048] The gas inlet 13d is configured for allowing outside gas flow to flow into the first gas passages 212. Specifically, the atomization base 13 and the aerosol generating article 20 move relative to each other, so that the gas inlet 13d is in communication with part of the plurality of first gas passages 212. That is, the atomization base 13 may remain stationary and the aerosol generating article 20 may move relative to the atomization base 13; or, the aerosol generating article 20 may remain stationary and the atomization base 13 may move relative to the aerosol generating article 13. In short, the gas inlet 13d will only be in communication with part of the first gas passages 212, but not all of the first gas passages 212.

[0049] Further, it is noted that the number of first gas passages 212 in communication with the gas inlet 13d may be one or more.

[0050] By way of example, referring to FIGS. 2 to 4 and 14 to 16, the atomization base 13 includes a bottom wall 131 and a side wall 132 located on a side of the bottom wall 131, the bottom wall 131 and the side wall 132 form and enclose the mounting groove 13a, the mounting opening 13b is located on a side of the mounting groove 13a opposite to the bottom wall 131, and the gas inlet 13d may be provided in the bottom wall 131 as shown in FIG. 3, or in the side wall 132 as shown in FIGS. 15 and 16.

[0051] With continued reference to FIGS. 1 and 13, the laser generating device 12 is provided within the housing 11 and is configured to heat a portion of an outer side wall of the aerosol generating article 20.

[0052] Specifically, the laser generating device 12 is configured to generate laser for single-sided local heating of the aerosol generating article 20.

[0053] By single-sided local heating, it means that a heating assembly in the aerosol generating device 10 (such as the laser generating device 12 shown in FIGS. 1 and 13) is provided on a periphery of the aerosol generating article 20 to bake and heat the aerosol generating article 20 from the outside to the inside, in which the heating assembly only heats a part of the outer side wall of the aerosol generating article 20 each time, and then heats another part of the outer side wall of the aerosol generating article 20 by rotating the aerosol generating article 20 or the atomization base 13 after the single heating is completed.

[0054] Referring to FIGS. 1 and 13, since the laser is configured for the single-sided local heating of the aerosol generating article 20, only some of the first gas passages 212 are located within the irradiation range of the laser during the heating process.

[0055] By way of example, referring to FIGS. 1 and 13, the laser generating device 12 may be provided outside the insertion channel 11a, and an emitting end of the laser generating device 12 faces the insertion channel 11a to achieve the single-sided local heating of the aerosol generating article 20.

[0056] It is noted that the heating method for the single-sided local heating is not limited to laser, for example, the single-sided local heating may be performed by a heating method such as resistance heating, electromagnetic heating, infrared heating, or microwave heating. Thus, the atomization base 13 is not limited to being provided in the aerosol generating device 10 having the laser generating device 12, and the atomization base 13 described in the embodiment of the present application may be provided in any other aerosol generating device 10 using the single-sided local heating.

[0057] Referring to FIGS. 1 and 13, the rotation driving mechanism 14 drives one of the atomization base 13 and the aerosol generating article 20 to rotate, so that the gas inlet 13d is in communication with the first gas passages 212 located within the irradiation range of the laser generating device 12.

[0058] That is, the rotation driving mechanism 14 may drive the aerosol generating article 20 to rotate relative to the atomization base 13, or may drive the atomization base 13 to rotate relative to the aerosol generating article 20, so that the gas inlet 13d can communicate with the first gas passages 212 located within the irradiation range of the laser generating device 12.

[0059] It is noted that, when the number of the first gas passages 212 located within the irradiation range of the laser generating device 12 is more than one, the gas inlet 13d may communicate with some of the first gas passages 212 or may communicate with all of the first gas passages 212 within the irradiation range.

[0060] By way of example, referring to FIGS. 1 to 4, 13, and 16, the rotation driving mechanism 14 has a connection joint 14a, a driving mechanism avoidance opening 13c may be provided in the bottom wall 131 of the mounting groove 13a, and the connection joint 14a passes through the driving mechanism avoidance opening 13c to extend into the mounting groove 13a and connect with the aerosol generating article 20, whereby the rotation driving mechanism 14 can drive the aerosol generating article 20 to rotate relative to the atomization base 13.

[0061] By way of example, the aerosol generating device 10 may be provided with a plurality of laser generating devices 12, for heating outer side walls of the aerosol generating article 20 located in different regions in a circumferential direction of the aerosol generating article 20, the connection joint 14a of the rotation driving mechanism 14 may be connected to the atomization base 13, and the rotation driving mechanism 14 may drive the atomization base 13 to rotate relative to the aerosol generating article 20, so that the gas inlet 13d is in communication with the first gas passages 212 within the irradiation range of the corresponding laser generating device 12.

[0062] Hereinafter, the aerosol generating device 10 described in the embodiment of the present application will be further described in detail with reference to the aerosol generating article 20 shown in FIGS. 1 and 13. It should be noted that the aerosol generating device 10 described in the embodiment of the present application is not limited to be used in conjunction with the aerosol generating article 20 shown in FIGS. 1 and 13, and the aerosol generating device 10 can also be used in conjunction with other aerosol generating articles 20 having gas passages.

[0063] Referring to FIGS. 5-9 and 17-19, an aerosol generating article 20 for use in conjunction with the aerosol generating device 10 includes an aerosol generating substrate 21 and a separation section 22.

[0064] The aerosol generating device 10 is configured to heat the aerosol generating substrate 21, so that the aerosol generating substrate 21 can generate an aerosol.

[0065] The aerosol generating substrate 21 includes a gas intake side X1 and a gas outlet side X2 which are arranged opposite to each other. The aerosol generating substrate 21 includes a base portion 211 and a plurality of first gas passages 212 surrounding a circumference of the base portion 211. Each of the first gas passages 212 extends from the gas intake side X1 to the gas outlet side X2. At least an end of each of the first gas passages 212 close to the gas intake side X1 is an open end, that is, at least an end of each of the first gas passages 212 close to the gas intake side X1 is in communication with external environment, and an end of each of the first gas passages 212 close to the gas outlet side X2 may be an open end or a closed end that does not communicate with the external environment.

[0066] The specific structure of the aerosol generating substrate 21 is not limited herein, and by way of example, in one embodiment, the aerosol generating substrate 21 may be made from the atomizing medium itself, for example from a smoking flavored spice medium. In other embodiments, the aerosol generating substrate 21 may also include a matrix and an atomizing medium provided on the matrix, and the matrix may be, for example, high-temperature resistant carbon fiber. Thus, by providing the matrix, the strength of the aerosol generating substrate 21 can be improved, and the aerosol generating substrate can withstand a certain degree of high temperature without generating peculiar smell.

[0067] Specific components of the aerosol generating substrate 21 are not limited herein, and by way of example, in one embodiment, the aerosol generating substrate 21 may include a plant component, an auxiliary component, a smoking agent component, a binder component, and the like.

[0068] In one embodiment, the plant component may be powder formed by crushing treatment of one or a combination of some of tobacco leaf raw material, tobacco leaf fragments, tobacco stalks, tobacco powders, and flavored plants. The plant component is the core source of the flavor of the article. Endogenous substances in the plant component, such as nicotine, enter the human blood through atomization, which promotes the pituitary gland to produce dopamine, thus obtaining physiological satisfaction.

[0069] In one embodiment, the auxiliary component may be one or a combination of some of an inorganic filler, a lubricant, or an emulsifier. The inorganic filler includes one or a combination of some of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, or diatomaceous earth. The inorganic filler can provide skeleton support for the plant component, and the inorganic filler also has micro pores, which can improve the porosity of the wall material after the plant component is molded, thereby increasing the aerosol release rate.

[0070] The lubricant may include one or a combination of some of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, or palmitic acid. The lubricant can increase the mobility of particles, reduce the friction between particles, make the overall density of particle distribution more uniform, reduce the pressure required for mold forming, and reduce mold wear.

[0071] The emulsifier may include one or a combination of some of polyglycerol fatty acid esters, Tween-80, or polyvinyl alcohol. To a certain extent, the emulsifier can slow down the loss of flavor substances during storage, increase the stability of flavor substances and improve the sensory quality of articles. The emulsifier (also referred to as surfactant) can reduce the interfacial tension of water-soluble and water-insoluble components in the mixed system, and form a stronger film on a surface of each of the droplets or form an electric double layer on the surface of each of the droplets due to charges given by the emulsifier, preventing the droplets from aggregating with each other, while maintaining a uniform emulsion. Emulsification and homogenization of two incompatible components can improve the consistency of article quality.

[0072] The function of the smoking agent component is to generate a large amount of vapor when heated, thereby increasing the amount of smoke of the smoking article. In one embodiment, the smoking agent may include, for example, one of or a combination of some of monoalcohols (such as menthol); polyols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyols (such as monoglycerides, diglycerides, or triacetins); monocarboxylic acid; 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, racemic erythritol, glycerol diacetate mixture, diethyl octanoate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillic acid, glyceryl tributoate, and lauryl acetate).

[0073] In one embodiment, the binder component is a non-ionized modified viscous polysaccharide extracted from natural plants, including one of or a combination of some of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, or xyloglucan. The binder is in close contact with the component material of the article by interface wetting, resulting in intermolecular attraction, thereby playing the role of binding the powder, liquid, etc. of the component material. Further, the use of the non-ionic modified binder extracted from natural plants can avoid the release of harmful substances such as methanol, formaldehyde, and acrolein caused by modification of the binder, to improve the safety of articles.

[0074] In one embodiment, the aerosol generating substrate 21 may further include a light-absorbing material, and the light-absorbing material is a material having a higher absorptivity for laser light, which may be better suitable for laser heating.

[0075] By way of example, the aerosol generating substrate 21 may be a particular combination, which is a recombined tobacco medium, for example, a recombined tobacco medium containing ingredients such as smoking agents, tobacco, and the like. The aerosol generating substrate 21 is an integral structure, for example, an integral structure that can be formed by an injection molding, compression molding, or extrusion molding. Among them, the extrusion molding refers to a processing method in which the raw material mixture is added into the extruder and then is pushed forward by a screw through the action between an extruder barrel and the screw, to continuously pass through a machine head to form various cross-sectional articles or semi-finished articles. The aerosol substrate formed by extrusion molding is in the shape of a strip.

[0076] Since the aerosol generating substrate 21 is a particulate combination, the aerosol generating substrate 21 is an integrated medium after being heated and inhaled or stopped being heated, and the phenomenon of disintegration and falling is not easy to occur, thus solving the problems of aerosol generating substrate 21 in the form of flaky, filamentous or loose particulates in the prior art, such as flake loosening, detachment of filamentous and particulate components, and difficulty in cleaning.

[0077] The shape of the aerosol generating substrate 21 is also not limited as long as the first gas passages 212 can be formed. By way of example, referring to FIG. 6, the aerosol generating substrate 21 may be columnar. The cross-section of the columnar aerosol generating substrate 21 may be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.. The special-shape refers to other symmetrical or asymmetrical shapes other than those listed above.

[0078] The gas intake side X1 of the aerosol generating substrate 21 is an end of the aerosol generating substrate 21 through which the outside gas flow flows into the aerosol generating substrate 21, and the gas outlet side X2 of the aerosol generating substrate 21 is an end of the aerosol generating substrate 21 through which the gas flow flows out of the aerosol generating substrate 21, that is, the flow direction of the gas flow is from the gas intake side X1 to the gas outlet side X2 of the aerosol generating substrate 21.

[0079] Each of the first gas passages 212 is a passage for gas flow to pass through the aerosol generating substrate 21, and the aerosol released during heating of the aerosol generating substrate 21 may also enter the first gas passages 212.

[0080] The number of the first gas passages 212 may be two or more.

[0081] By way of example, referring to FIG. 7, the aerosol generating substrate 21 may include a plurality of protrusions 213 surrounding a circumference of the base portion 211, and the first gas passage 212 is formed between two adjacent protrusions 213.

[0082] By way of example, a plurality of first gas passages 212 may also be formed inside the aerosol generating substrate 21.

[0083] Please continue to refer to FIGS. 6 to 10, the separation section 22 is provided on the gas intake side X1, the separation section 22 includes a plurality of gas intake channels 2211 spaced apart from each other, the separation section 22 separates the plurality of first gas passages 212 from each other by the gas intake channels 2211, and each of the gas intake channels 2211 is in communication with at least one of the first gas passages 212.

[0084] The separation section 22 extends into the atomization base 13 and is connected to the connection joint 14a.

[0085] By way of example, the separation section 22 may be provided with a rotation connector 222 and a separator 221 having a plurality of gas intake channels 2211, and the connection joint 14a can be connected with the rotation connector 222.

[0086] The material of the separator 221 may be food silica gel, PLA, PEEK, or the like.

[0087] The material of the rotation connector 222 may be a high-density filter cotton.

[0088] Referring to FIGS. 8 to 10, the separator 221 may be provided with a plurality of grille bars 2212, and the gas intake channel 2211 is formed between adjacent grille bars 2212.

[0089] By way of example, the length of the grid bar 2212 may range from 2 mm to 10 mm (inclusive of the endpoint values), for example, the length of the grid bar 2212 may be 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc.

[0090] Referring to FIG. 12, the separator 221 may also be provided with a main body 2214 having an annular hollowed-out region, and the gas intake channels 2211 may be formed by providing a corrugated structure 2215 within the hollowed-out region.

[0091] In other embodiments, the corrugated structure 2215 may also be replaced with relatively loose filter cotton.

[0092] The gas intake channel 2211 is in communication with the gas inlet 13d, and the outside gas flow enters the gas intake channel 2211 from the gas inlet 13d, and then enters the first gas passage 212 in communication with the gas intake channel 2211 from the gas intake channel 2211.

[0093] Each gas intake channel 2211 can only communicate with some of the first gas passages 212 of the aerosol generating substrate 21, and none of the gas intake channels 2211 can communicate with all of the first gas passages 212 of the aerosol generating substrate 21 at the same time.

[0094] By way of example, referring to FIG. 10, the gas intake channels 2211 may communicate with the first gas passages 212 in one-to-one correspondence, that is, the number of the gas intake channels 2211 is the same as the number of the first gas passages 212, each of the gas intake channels 2211 is in communication with only one first gas passage 212, and the same first gas passage 212 does not communicate with two or more gas intake channels 2211.

[0095] By way of example, referring to FIG. 11, when the number of first gas passages 212 is at least three, each of the gas intake channels 2211 may also communicate with two adjacent first gas passages 212.

[0096] Referring to FIGS. 1 and 13, after the separation section 22 is connected to the connection joint 14a, the gas inlet 13d of the atomization base 13 will only communicate with part of the gas intake channels 2211, that is, the gas inlet 13d may communicate with one gas intake channel 2211 or communicate with more than one gas intake channels 2211, but may not communicate with all the gas intake channels 2211, and the outside gas flow mainly flows into the first gas passages 212 in communication with the gas inlet 13d, but hardly flows into the other first gas passages 212.

[0097] Referring to FIGS. 6 and 18, the aerosol generating article 20 may also be provided with a functional section 23 on the gas outlet side X2 of the aerosol generating substrate 21, and the functional section 23 may be provided with only a filter section for filtering the aerosol, or may be provided with a filter section and a cooling section. For the functional section 23 provided with the cooling section, the cooling section is provided between the filter section and the aerosol generating substrate 21, for cooling the aerosol before the filter section filters the aerosol, so as to reduce the temperature of the aerosol and improve the phenomenon of "burning the mouth" when the user inhales the aerosol.

[0098] Referring to FIGS. 5 and 17, the aerosol generating article 20 may further be provided with an outer wrapping layer 24 that wraps around the outer periphery of each of the aerosol generating substrate 21, the separation section 22, and the functional section 23.

[0099] Further, referring to FIG. 17, for the atomization base 13 in which the gas inlet 13d is provided on the side wall 132, pores 24a in communication with the gas intake channels 2211 may be provided in the outer wrapping layer 24, and the gas inlet 13d is in communication with the gas intake channels 2211 through the pores 24a.

[0100] Taking the aerosol generating device 10 shown in FIGS. 1 and 13 as an example, in the process of loading the aerosol generating article 20 into the aerosol generating device 10, an end of the aerosol generating article 20 provided with the separation section 22 is inserted into the insertion channel 11a from the insertion port 11b, and moves along the insertion channel 11a towards the atomization base 13, and finally the separation section 22 enters the mounting groove 13a from the mounting opening 13b of the atomization base 13 and is connected to the connection joint 14a.

[0101] Referring to FIGS. 1 and 13, since the gas inlet 13d can communicate with the first gas passages 212 located within the irradiation range of the laser generating device 12, the aerosol generated by the heating of the aerosol generating substrate 21 will enter the first gas passages 212 in communication with the gas inlet 13d. That is, both the outside gas flow and the aerosol generated by the heating of the aerosol generating substrate 21 enter the first gas passages 212 in communication with the gas inlet 13d. Therefore, during the user's inhaling process, a large amount of gas flow can carry the aerosol out of the first gas passages 212, and the capture rate of the aerosol can reach over 90%, which can effectively improve the capture rate of the aerosol.

[0102] In one embodiment, referring to FIGS. 1, 7 and 13, a second gas passage 214 may be provided inside the base portion 211, the second gas passage 214 extends through the gas inlet side X1 and the gas outlet side X2, and the second gas passage 214 may collect aerosol generated by heating of the base portion 211, so that the aerosol can flow through the second gas passage 214 to improve the aerosol extraction efficiency.

[0103] For the aerosol generating substrate 21 provided with the second gas passage 214, by way of example, referring to FIGS. 1, 6 and 8, the separator 221 may be provided with a blocking channel 2216, the plurality of gas intake channels 2211 surround the circumference of the blocking channel 2216, the blocking channel 2216 is in communication with the second gas passage 214, and the rotation connector 222 may be provided at least in the blocking channel 2216, that is, the rotation connector 222 may be provided only in the blocking channel 2216 as shown in FIGS. 1, 6 and 8, or in both the blocking channel 2216 and the second gas passage 214 to block the second gas passage 214. In other words, the rotation connector 222 has both functions of connecting to the connection joint 14a of the rotation driving mechanism 14 and blocking the second gas passage 214.

[0104] By way of example, referring to FIGS. 13, 18 and 19, the separation section 22 may also be provided with a separator 221 having a shielding portion 2213, a plurality of gas intake channels 2211 surround a circumference of the shielding portion 2213, the shielding portion 2213 shields a gas passage port of the second gas passage 214 on the gas intake side X1, that is, the shielding portion 2213 blocks the outside gas flow from flowing into the second gas passage 214, and the rotation connector 222 is provided on a side of the separator 221 facing away from the aerosol generating substrate 21.

[0105] Specifically, the second gas passage 214 extends through the gas intake side X1 and the gas outlet side X2, which can facilitate machining of the second gas passage 214, but during the heating process of the laser generating device 12, the aerosol mainly enters the first gas passages 212 in communication with the gas inlet 13d, and only a small amount of aerosol enters the second gas passage 214, so that the gas passage port of the second gas passage 214 on the gas intake side X1 can be shielded or blocked to prevent the outside gas flow from flowing into the second gas passage 214.

[0106] In addition, it should be noted that although the outside gas flow cannot flow into the second gas passage 214, the aerosol in the second gas passage 214 can still flow out of the second gas passage 214 during the inhaling process, but the effect is relatively poor compared with the use of the outside gas flow to extract the aerosol.

[0107] In one embodiment, referring to FIGS. 2 to 4, the bottom wall 131 has an outer surface 131a facing away from the mounting groove 13a and an inner surface 131b close to the mounting groove 13a, and for the atomization base 13 in which the gas inlet 13d is provided on the bottom wall 131, the gas inlet 13d has a first opening 13dla located on the outer surface 131a and a second opening 13d2a located on the inner surface 131b, and the cross-sectional dimension of the first opening 13d1a may be smaller than the cross-sectional dimension of the second opening 13d2a.

[0108] Specifically, since the bottom wall 131 has a certain thickness, and thus after the gas inlet 13d extends through the bottom wall 131, the first opening 13dla is formed on the outer surface 131a of the bottom wall 131, and the second opening 13d2a is formed on the inner surface 131b of the bottom wall 131.

[0109] When the outside gas flow passes through the gas inlet 13d, it enters the gas inlet 13d from the first opening 13d1a and flows out from the second opening 13d2a.

[0110] The cross-sectional dimension of the first opening 13d1a is smaller than the cross-sectional dimension of the second opening 13d2a, which can play a role in adjusting the inhaling resistance to meet the inhaling resistance requirement during inhaling.

[0111] The shape of the first opening 13d1a is not limited, for example, the first opening 13d1a shown in FIGS. 2 and 3 is circular. The circular first opening 13d1a is convenient for machining and manufacturing.

[0112] By way of example, a diameter of the first opening 13d1a may range from 0.5 mm to 1.5 mm (including endpoint values), for example, the diameter of the first opening 13d1a may be 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, or the like.

[0113] In other embodiments, the first opening 13d1a may also be polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.

[0114] The shape of the second opening 13d2a is not limited. For example, the second opening 13d2a may have an elongated strip shape extending in the circumferential direction of the bottom wall 131 as shown in FIGS. 2 and 3. The elongated strip shape extending in the circumferential direction of the bottom wall 131 may facilitate the gas inlet 13d to communicate with the plurality of first gas passages 212 located within the irradiation range of the laser.

[0115] In other embodiments, the second opening 13d2a may also be polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.

[0116] Referring to FIGS. 2 to 4, the gas inlet 13d may include a first segment 13d1 having a first opening 13d1a and a second segment 13d2 having a second opening 13d2a, and at least one of the first segment 13d1 and the second segment 13d2 may be provided as a constant cross-section structure.

[0117] The constant cross-section structure refers to a structure having a cross-sectional dimension unchanged.

[0118] In FIGS. 2 to 4, both the first segment 13d1 and the second segment 13d2 are provided as constant cross-section structures, that is, the cross-sectional size of the entire first segment 13d1 is the same as that of the first opening 13d1a, and the cross-sectional size of the entire second segment 13d2 is the same as that of the second opening 13d2a.

[0119] Both the first segment 13d1 and the second segment 13d2 are provided as constant cross-section structures, which can facilitate machining of the gas inlet 13d.

[0120] In other embodiments, one of the first segment 13d1 and the second segment 13d2 may be provided as a constant cross-section structure. For example, the first segment 13d1 may be provided as a constant cross-section structure, and the second segment 13d2 may be provided as a variable cross-section structure; or the first segment 13d1 may be provided as a variable cross-section structure, and the second segment 13d2 may be provided as a constant cross-section structure. The variable cross-section structure refers to a structure having a cross-sectional dimension varied, that is, the cross-sectional dimension, at at least one position, of the variable cross-section structure is different from cross-sectional dimensions at other positions of the variable cross-section structure.

[0121] In other embodiments, the cross-sectional dimension of the gas inlet 13d may also gradually increase from the first opening 13d1a to the second opening 13d2a, that is, the gas inlet 13d is not clearly segmented, and the cross-sectional dimension of the gas inlet 13d gradually changes from the first opening 13d1a to the second opening 13d2a.

[0122] In one embodiment, referring to FIGS. 14 and 15, for the atomization base 13 in which the gas inlet 13d is provided on the side wall 132, the gas inlet 13d may be a circumferentially closed hole, that is, the side wall 132 may be formed with the gas inlet 13d by making a hole in the side wall.

[0123] In another embodiment, referring to FIG. 16, the gas inlet 13d may is in the shape of a notch that is open on a side close to the mounting opening 13b.

[0124] Referring to FIGS. 14 to 16, regardless of whether the gas inlet 13d is in the shape of a hole or a notch, the gas inlet 13d may extend in the circumferential direction of the side wall 132 so that the gas inlet 13d can communicate with the plurality of first gas passages 212 located within the irradiation range of the laser.

[0125] Referring to FIGS. 14 to 16, a portion of the side wall 132 may also protrude into the mounting groove 13a to form an annular sealing rib 132a.

[0126] The annular sealing rib 132a is configured to be in sealing contact with the aerosol generating article 20 to improve the sealing of the aerosol generating article 20 with the atomization base 13.

[0127] The annular sealing rib 132a may be a circumferentially closed ring, or may be a ring having an opening.

[0128] By way of example, referring to FIGS. 14 to 16, at least two annular sealing ribs 132a may be provided, and the annular sealing ribs 132a may be provided on a side of the gas inlet 13d close to the mounting opening 13b and on a side of the gas inlet 13d facing away from the mounting opening 13b, respectively, to improve the sealing performance.

[0129] In other embodiments, a portion of the outer side wall of the support tube may also be recessed to form a recess, and the recess extends through opposite ends of the support tube in the first direction.

[0130] In the description of the present application, descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in still other embodiments" or "by way of example" mean that specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic expression of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. Furthermore, those skilled in the art can combine different embodiments or examples described in the present application and features of different embodiments or examples without contradicting each other.

[0131] The above description merely involves preferred embodiments of the present application, and is not intended to limit the present application, and various modifications and variations may be made to those skilled in the art. Any modification, equivalent substitution, and improvement, etc. made within the spirit and principle of the present application are included within the scope of protection of the present application.

Examples

Embodiment Construction

[0039]Embodiments of the present application provide an aerosol generating device 10. Referring to FIGS. 1 to 19, the aerosol generating device 10 can be used in conjunction with an aerosol generating article 20 having a plurality of first gas passages 212.

[0040]Specifically, the aerosol generating device 10 heats and atomizes the aerosol generating article 20 to generate an aerosol for a user to inhale it or for use it in medicine, beauty, or the like.

[0041]Referring to FIGS. 1 and 13, the aerosol generating device 10 includes a housing 11, an atomization base 13, a laser generating device 12, and a rotation driving mechanism 14.

[0042]The housing 11 is provided with an insertion channel 11a, the insertion channel has an insertion port 11b at an end of the insertion channel, and the aerosol generating article 20 is inserted into the insertion channel 11a through the insertion port.

[0043]Referring to FIGS. 1 and 13, after the aerosol generating article 20 is inserted into the inserti...

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is based on a Chinese patent application with application number 202310988178.0 filed on August 7, 2023, and claims the priority of the Chinese patent application, the entire contents of which are hereby incorporated by reference.TECHNICAL FIELD

[0002] The present application relates to the technical field of smoking, in particular to an atomization base, an aerosol generating device and an aerosol generating article.BACKGROUND

[0003] An aerosol generating article generally produces an aerosol by heating without combustion. In particular, the aerosol generating article is provided with an aerosol generating substrate, the aerosol generating substrate is heated by an external heat source to a level just enough to emit a fragrance. The aerosol generating substrate does not burn, but is loaded with an atomizing agent, and the atomizing agent is released by heating when in use to form a smoke.

[0004] In the related art, there is a heating method in which an outer side wall of an aerosol generating substrate having a plurality of gas passages is subjected to a single-sided local heating. In this heating method, each time only a part of the outer side wall of the aerosol generating substrate is heated, and another part of the outer side wall is heated by rotating the aerosol generating substrate after the single heating is completed.

[0005] However, in the heating process, the aerosol is generated only in a few gas passages located near the heated outer side wall, and is hardly generated in other gas passages. In the inhaling process of the user, the outside gas flow will be dispersed into each gas passage, and only the gas flow entering the gas passage having the aerosol can carry the aerosol out, thereby resulting that it is difficult for about 50% of the aerosol to be stably sucked out, so that the capture rate of the aerosol is relatively low.SUMMARY

[0006] In view of this, in embodiments of the present application, it is desirable to provide an atomization base, an aerosol generating device, and an aerosol generating article, for improving the capture rate of aerosol.

[0007] In order to achieve the above object, an embodiment of the present application provides an atomization base for an aerosol generating device. The atomization base is formed with a mounting groove and a gas inlet in communication with the mounting groove. The mounting groove is configured to receive at least a portion of an aerosol generating article, and the aerosol generating article includes a plurality of first gas passages.

[0008] The atomization base and the aerosol generating article move relative to each other so that the gas inlet is in communication with part of the plurality of the first gas passages.

[0009] In one embodiment, the atomization base may include a bottom wall and a side wall located on a side of the bottom wall, the bottom wall and the side wall may form and enclose the mounting groove, and the gas inlet may be provided in the bottom wall or the side wall.

[0010] In one embodiment, the bottom wall may have an outer surface facing away from the mounting groove and an inner surface close to the mounting groove, the gas inlet may be provided in the bottom wall, the gas inlet may have a first opening located on the outer surface and a second opening located on the inner surface, and a cross-sectional dimension of the first opening may be smaller than a cross-sectional dimension of the second opening.

[0011] In one embodiment, the first opening may be circular.

[0012] In one embodiment, the second opening may be in a shape of an elongated strip extending in a circumferential direction of the bottom wall.

[0013] In one embodiment, the first opening may be circular, and the first opening may have a diameter ranging from 0.5 mm to 1.5 mm.

[0014] In one embodiment, the gas inlet may include a first segment having the first opening and a second segment having the second opening, and at least one of the first segment and the second segment may be provided as a constant cross-section structure.

[0015] In one embodiment, a cross-sectional dimension of the gas inlet may gradually increase from the first opening to the second opening.

[0016] In one embodiment, the gas inlet may be provided in the side wall, and the gas inlet may be in a shape of a circumferentially closed hole.

[0017] In one embodiment, the gas inlet may be provided in the side wall, an end of the mounting groove opposite to the bottom wall may have a mounting opening, and the gas inlet may be in a shape of a notch that is open on a side close to the mounting opening.

[0018] In one embodiment, the gas inlet may be provided in the side wall, and the gas inlet may extend in a circumferential direction of the side wall.

[0019] In one embodiment, the gas inlet may be provided in the side wall, and portions of the side wall may project into the mounting groove to form annular sealing ribs.

[0020] In one embodiment, the gas inlet may be provided in the side wall, the number of the annular sealing ribs may be at least two, and the annular sealing ribs may be respectively provided on a side of the gas inlet close to the mounting opening and on a side of the gas inlet away from the mounting opening.

[0021] In one embodiment, the bottom wall of the mounting groove may be provided with a driving mechanism avoidance opening.

[0022] Another embodiment of the present application provides an aerosol generating device including: a housing, an atomization base described above, a laser generating device provided in the housing, and a rotation driving mechanism.

[0023] The housing is provided with an insertion channel having an insertion port at an end of the insertion channel.

[0024] The atomization base is provided in the housing and is located at an end of the insertion channel opposite to the insertion port, and the mounting groove is in communication with the insertion channel.

[0025] The laser generating device is configured to heat a portion of an outer side wall of the aerosol generating article.

[0026] The rotation driving mechanism is configured to drive one of the atomization base and the aerosol generating article to rotate, so that the gas inlet is in communication with the first gas passages within an irradiation range of the laser generating device.

[0027] In one embodiment, the laser generating device may be positioned outside the insertion channel, and an emitting end of the laser generating device may face the insertion channel.

[0028] In one embodiment, the rotation driving mechanism may have a connection joint. The connection joint may be connected with the atomization base; or, the bottom wall of the mounting groove may be provided with a driving mechanism avoidance opening, and the connection joint may pass through the driving mechanism avoidance opening to extend into the mounting groove and connect with the aerosol generating article.

[0029] Still another embodiment of the present application provides an aerosol generating article including: an aerosol generating substrate, and a separation section.

[0030] The aerosol generating substrate has a gas intake side and a gas outlet side that are opposite to each other. The aerosol generating substrate includes a base portion and a plurality of first gas passages surrounding a circumference of the base portion, each of the first gas passages extends from the gas intake side towards the gas outlet side, and at least an end of each of the first gas passages close to the gas intake side is an open end.

[0031] The separation section is provided on the gas intake side, the separation section has a plurality of gas intake channels spaced apart from each other, the separation section separates the plurality of the first gas passages from each other by the gas intake channels, and each of the gas intake channels is in communication with at least one of the first gas passages.

[0032] In one embodiment, the gas intake channels may be in communication with the first gas passages in one-to-one correspondence.

[0033] In one embodiment, the number of the first gas passages may be at least three, and each of the gas intake channels may be in communication with two adjacent first gas passages of the first gas passages.

[0034] In one embodiment, the aerosol generating substrate may include a plurality of protrusions surrounding a circumference of the base portion, and each of the first gas passages may be formed between two adjacent protrusions of the protrusions.

[0035] In one embodiment, the base portion may be provided with a second gas passage inside the base portion, the second gas passage extending through the gas intake side and the gas outlet side. The separation section may include a separator and a rotation connector. The separator may include a shielding portion and the plurality of gas intake channels surrounding a circumference of the shielding portion, the shielding portion shields a gas passage port of the second gas passage on the gas intake side, and the rotation connector is provided on a side of the separator facing away from the aerosol generating substrate.

[0036] In one embodiment, the base portion may be provided with a second gas passage inside the base portion, the second gas passage extending through the gas intake side and the gas outlet side. The separation section may include a separator and a rotation connector. The separator may include a blocking channel and the plurality of gas intake channels surrounding a circumference of the blocking channel, the blocking channel is in communication with the second gas passage, and the rotation connector is provided at least in the blocking channel to block the second gas passage.

[0037] An embodiment of the present application provides an atomization base, an aerosol generating device, and an aerosol generating article, wherein the atomization base is formed with a mounting groove and a gas inlet in communication with the mounting groove, the mounting groove is configured to receive at least a part of the aerosol generating article having a plurality of first gas passages, and the atomization base and the aerosol generating article move relative to each other so that the gas inlet is in communication with part of the plurality of first gas passages. Taking the installation of the atomization base in the aerosol generating device having a laser generating device as an example, when the aerosol generating article having an aerosol generating substrate is inserted into the mounting groove of the atomization base, the gas inlet only communicates with part of the first gas passages of the aerosol generating substrate, and the external gas flow enters the first gas passages in communication with the gas inlet through the gas inlet. Further, since the rotation driving mechanism of the aerosol generating device drives one of the atomization base and the aerosol generating article to rotate, so that the gas inlet can be in communication with the first gas passages located within the irradiation range of the laser generating device, the aerosol generated by heating of the aerosol generating substrate will enter the first gas passages in communication with the gas inlet. That is, both the external gas flow and the aerosol generated by the heating of the aerosol generating substrate enter the first gas passages in communication with the gas inlet, a large amount of gas flow thus can carry the aerosol out of the first gas passages during the user's inhaling process, and the capture rate of the aerosol can reach over 90%, which can effectively improve the capture rate of the aerosol.BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG. 1 is a schematic structural view of an aerosol generating device according to an embodiment of the present application, which also shows an aerosol generating article, wherein a dashed arrow in the figure indicates a direction of gas flow, and side-by-side arrows located on a side of a laser generating device indicate a laser irradiation direction; FIG. 2 is a schematic structural view of a atomization base and a rotation driving mechanism shown in FIG. 1; FIG. 3 is a schematic structural view of the atomization base shown in FIG. 2; FIG. 4 is a cross-sectional view of the atomization base shown in FIG. 2; FIG. 5 is a schematic structural view of the aerosol generating article shown in FIG. 1; FIG. 6 is a schematic structural view of the aerosol generating article shown in FIG. 5 omitting an outer wrap layer; FIG. 7 is a schematic structural view of an aerosol generating substrate shown in FIG. 6; FIG. 8 is a schematic structural view of a separation section shown in FIG. 6; FIG. 9 is a schematic structural view of a separator shown in FIG. 8; FIG. 10 is a view taken along a direction A of FIG. 6 in which a functional section is omitted; FIG. 11 is a schematic view of the separation section shown in FIG. 6 and the aerosol generating substrate in another communication direction, the perspective of figure is the same as the direction A of FIG. 6; FIG. 12 is a schematic structural view of another separator according to an embodiment of the present application. FIG. 13 is a schematic structural view of another aerosol generating device according to an embodiment of the present application, which also shows an aerosol generating article, wherein a dashed arrow in the figure indicates a direction of gas flow, and side-by-side arrows located on a side of a laser generating device indicate a laser irradiation direction; FIG. 14 is a schematic structural view of a atomization base and a rotation driving mechanism shown in FIG. 13; FIG. 15 is a schematic structural view of the atomization base shown in FIG. 14; FIG. 16 is a schematic structural view of another atomization base according to an embodiment of the present application. FIG. 17 is a schematic structural view of the aerosol generating article shown in FIG. 13; FIG. 18 is a schematic structural view of the aerosol generating article shown in FIG. 17 omitting an outer wrapping layer; and FIG. 19 is a schematic structural view of a separation section shown in FIG. 18. DETAILED DESCRIPTION

[0039] Embodiments of the present application provide an aerosol generating device 10. Referring to FIGS. 1 to 19, the aerosol generating device 10 can be used in conjunction with an aerosol generating article 20 having a plurality of first gas passages 212.

[0040] Specifically, the aerosol generating device 10 heats and atomizes the aerosol generating article 20 to generate an aerosol for a user to inhale it or for use it in medicine, beauty, or the like.

[0041] Referring to FIGS. 1 and 13, the aerosol generating device 10 includes a housing 11, an atomization base 13, a laser generating device 12, and a rotation driving mechanism 14.

[0042] The housing 11 is provided with an insertion channel 11a, the insertion channel has an insertion port 11b at an end of the insertion channel, and the aerosol generating article 20 is inserted into the insertion channel 11a through the insertion port.

[0043] Referring to FIGS. 1 and 13, after the aerosol generating article 20 is inserted into the insertion channel 11a, at least a portion of the aerosol generating article 20 is located in the insertion channel 11a.

[0044] Referring to FIGS. 2 to 4 and 14 to 16, the atomization base 13 is formed with a mounting groove 13a and a gas inlet 13d in communication with the mounting groove 13a. The mounting groove 13a is configured to receive at least a portion of the aerosol generating article 20.

[0045] The atomization base 13 is arranged in the housing 11, and is located at an end of the insertion channel 11a opposite to the insertion port 11b, and the mounting groove 13a is in communication with the insertion channel 11a.

[0046] The mounting groove 13a of the atomization base 13 is configured to limit the displacement of the aerosol generating article 20. Specifically, the mounting groove 13a has a mounting opening 13b on an end of the mounting groove, the mounting opening 13b faces the insertion port 11b, and an end of the aerosol generating article 20 extends into the mounting groove 13a from the mounting opening 13b.

[0047] The material of the atomization base 13 is not limited. For example, the material of the atomization base 13 may be silica gel, TPU (Thermoplastic Urethane), PLA (polylactic acid), PC (Polycarbonate), PEEK (polyetheretherketone), PTFE (Polytetrafluoroethylene), or the like.

[0048] The gas inlet 13d is configured for allowing outside gas flow to flow into the first gas passages 212. Specifically, the atomization base 13 and the aerosol generating article 20 move relative to each other, so that the gas inlet 13d is in communication with part of the plurality of first gas passages 212. That is, the atomization base 13 may remain stationary and the aerosol generating article 20 may move relative to the atomization base 13; or, the aerosol generating article 20 may remain stationary and the atomization base 13 may move relative to the aerosol generating article 13. In short, the gas inlet 13d will only be in communication with part of the first gas passages 212, but not all of the first gas passages 212.

[0049] Further, it is noted that the number of first gas passages 212 in communication with the gas inlet 13d may be one or more.

[0050] By way of example, referring to FIGS. 2 to 4 and 14 to 16, the atomization base 13 includes a bottom wall 131 and a side wall 132 located on a side of the bottom wall 131, the bottom wall 131 and the side wall 132 form and enclose the mounting groove 13a, the mounting opening 13b is located on a side of the mounting groove 13a opposite to the bottom wall 131, and the gas inlet 13d may be provided in the bottom wall 131 as shown in FIG. 3, or in the side wall 132 as shown in FIGS. 15 and 16.

[0051] With continued reference to FIGS. 1 and 13, the laser generating device 12 is provided within the housing 11 and is configured to heat a portion of an outer side wall of the aerosol generating article 20.

[0052] Specifically, the laser generating device 12 is configured to generate laser for single-sided local heating of the aerosol generating article 20.

[0053] By single-sided local heating, it means that a heating assembly in the aerosol generating device 10 (such as the laser generating device 12 shown in FIGS. 1 and 13) is provided on a periphery of the aerosol generating article 20 to bake and heat the aerosol generating article 20 from the outside to the inside, in which the heating assembly only heats a part of the outer side wall of the aerosol generating article 20 each time, and then heats another part of the outer side wall of the aerosol generating article 20 by rotating the aerosol generating article 20 or the atomization base 13 after the single heating is completed.

[0054] Referring to FIGS. 1 and 13, since the laser is configured for the single-sided local heating of the aerosol generating article 20, only some of the first gas passages 212 are located within the irradiation range of the laser during the heating process.

[0055] By way of example, referring to FIGS. 1 and 13, the laser generating device 12 may be provided outside the insertion channel 11a, and an emitting end of the laser generating device 12 faces the insertion channel 11a to achieve the single-sided local heating of the aerosol generating article 20.

[0056] It is noted that the heating method for the single-sided local heating is not limited to laser, for example, the single-sided local heating may be performed by a heating method such as resistance heating, electromagnetic heating, infrared heating, or microwave heating. Thus, the atomization base 13 is not limited to being provided in the aerosol generating device 10 having the laser generating device 12, and the atomization base 13 described in the embodiment of the present application may be provided in any other aerosol generating device 10 using the single-sided local heating.

[0057] Referring to FIGS. 1 and 13, the rotation driving mechanism 14 drives one of the atomization base 13 and the aerosol generating article 20 to rotate, so that the gas inlet 13d is in communication with the first gas passages 212 located within the irradiation range of the laser generating device 12.

[0058] That is, the rotation driving mechanism 14 may drive the aerosol generating article 20 to rotate relative to the atomization base 13, or may drive the atomization base 13 to rotate relative to the aerosol generating article 20, so that the gas inlet 13d can communicate with the first gas passages 212 located within the irradiation range of the laser generating device 12.

[0059] It is noted that, when the number of the first gas passages 212 located within the irradiation range of the laser generating device 12 is more than one, the gas inlet 13d may communicate with some of the first gas passages 212 or may communicate with all of the first gas passages 212 within the irradiation range.

[0060] By way of example, referring to FIGS. 1 to 4, 13, and 16, the rotation driving mechanism 14 has a connection joint 14a, a driving mechanism avoidance opening 13c may be provided in the bottom wall 131 of the mounting groove 13a, and the connection joint 14a passes through the driving mechanism avoidance opening 13c to extend into the mounting groove 13a and connect with the aerosol generating article 20, whereby the rotation driving mechanism 14 can drive the aerosol generating article 20 to rotate relative to the atomization base 13.

[0061] By way of example, the aerosol generating device 10 may be provided with a plurality of laser generating devices 12, for heating outer side walls of the aerosol generating article 20 located in different regions in a circumferential direction of the aerosol generating article 20, the connection joint 14a of the rotation driving mechanism 14 may be connected to the atomization base 13, and the rotation driving mechanism 14 may drive the atomization base 13 to rotate relative to the aerosol generating article 20, so that the gas inlet 13d is in communication with the first gas passages 212 within the irradiation range of the corresponding laser generating device 12.

[0062] Hereinafter, the aerosol generating device 10 described in the embodiment of the present application will be further described in detail with reference to the aerosol generating article 20 shown in FIGS. 1 and 13. It should be noted that the aerosol generating device 10 described in the embodiment of the present application is not limited to be used in conjunction with the aerosol generating article 20 shown in FIGS. 1 and 13, and the aerosol generating device 10 can also be used in conjunction with other aerosol generating articles 20 having gas passages.

[0063] Referring to FIGS. 5-9 and 17-19, an aerosol generating article 20 for use in conjunction with the aerosol generating device 10 includes an aerosol generating substrate 21 and a separation section 22.

[0064] The aerosol generating device 10 is configured to heat the aerosol generating substrate 21, so that the aerosol generating substrate 21 can generate an aerosol.

[0065] The aerosol generating substrate 21 includes a gas intake side X1 and a gas outlet side X2 which are arranged opposite to each other. The aerosol generating substrate 21 includes a base portion 211 and a plurality of first gas passages 212 surrounding a circumference of the base portion 211. Each of the first gas passages 212 extends from the gas intake side X1 to the gas outlet side X2. At least an end of each of the first gas passages 212 close to the gas intake side X1 is an open end, that is, at least an end of each of the first gas passages 212 close to the gas intake side X1 is in communication with external environment, and an end of each of the first gas passages 212 close to the gas outlet side X2 may be an open end or a closed end that does not communicate with the external environment.

[0066] The specific structure of the aerosol generating substrate 21 is not limited herein, and by way of example, in one embodiment, the aerosol generating substrate 21 may be made from the atomizing medium itself, for example from a smoking flavored spice medium. In other embodiments, the aerosol generating substrate 21 may also include a matrix and an atomizing medium provided on the matrix, and the matrix may be, for example, high-temperature resistant carbon fiber. Thus, by providing the matrix, the strength of the aerosol generating substrate 21 can be improved, and the aerosol generating substrate can withstand a certain degree of high temperature without generating peculiar smell.

[0067] Specific components of the aerosol generating substrate 21 are not limited herein, and by way of example, in one embodiment, the aerosol generating substrate 21 may include a plant component, an auxiliary component, a smoking agent component, a binder component, and the like.

[0068] In one embodiment, the plant component may be powder formed by crushing treatment of one or a combination of some of tobacco leaf raw material, tobacco leaf fragments, tobacco stalks, tobacco powders, and flavored plants. The plant component is the core source of the flavor of the article. Endogenous substances in the plant component, such as nicotine, enter the human blood through atomization, which promotes the pituitary gland to produce dopamine, thus obtaining physiological satisfaction.

[0069] In one embodiment, the auxiliary component may be one or a combination of some of an inorganic filler, a lubricant, or an emulsifier. The inorganic filler includes one or a combination of some of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, or diatomaceous earth. The inorganic filler can provide skeleton support for the plant component, and the inorganic filler also has micro pores, which can improve the porosity of the wall material after the plant component is molded, thereby increasing the aerosol release rate.

[0070] The lubricant may include one or a combination of some of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, or palmitic acid. The lubricant can increase the mobility of particles, reduce the friction between particles, make the overall density of particle distribution more uniform, reduce the pressure required for mold forming, and reduce mold wear.

[0071] The emulsifier may include one or a combination of some of polyglycerol fatty acid esters, Tween-80, or polyvinyl alcohol. To a certain extent, the emulsifier can slow down the loss of flavor substances during storage, increase the stability of flavor substances and improve the sensory quality of articles. The emulsifier (also referred to as surfactant) can reduce the interfacial tension of water-soluble and water-insoluble components in the mixed system, and form a stronger film on a surface of each of the droplets or form an electric double layer on the surface of each of the droplets due to charges given by the emulsifier, preventing the droplets from aggregating with each other, while maintaining a uniform emulsion. Emulsification and homogenization of two incompatible components can improve the consistency of article quality.

[0072] The function of the smoking agent component is to generate a large amount of vapor when heated, thereby increasing the amount of smoke of the smoking article. In one embodiment, the smoking agent may include, for example, one of or a combination of some of monoalcohols (such as menthol); polyols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyols (such as monoglycerides, diglycerides, or triacetins); monocarboxylic acid; 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, racemic erythritol, glycerol diacetate mixture, diethyl octanoate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillic acid, glyceryl tributoate, and lauryl acetate).

[0073] In one embodiment, the binder component is a non-ionized modified viscous polysaccharide extracted from natural plants, including one of or a combination of some of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, or xyloglucan. The binder is in close contact with the component material of the article by interface wetting, resulting in intermolecular attraction, thereby playing the role of binding the powder, liquid, etc. of the component material. Further, the use of the non-ionic modified binder extracted from natural plants can avoid the release of harmful substances such as methanol, formaldehyde, and acrolein caused by modification of the binder, to improve the safety of articles.

[0074] In one embodiment, the aerosol generating substrate 21 may further include a light-absorbing material, and the light-absorbing material is a material having a higher absorptivity for laser light, which may be better suitable for laser heating.

[0075] By way of example, the aerosol generating substrate 21 may be a particular combination, which is a recombined tobacco medium, for example, a recombined tobacco medium containing ingredients such as smoking agents, tobacco, and the like. The aerosol generating substrate 21 is an integral structure, for example, an integral structure that can be formed by an injection molding, compression molding, or extrusion molding. Among them, the extrusion molding refers to a processing method in which the raw material mixture is added into the extruder and then is pushed forward by a screw through the action between an extruder barrel and the screw, to continuously pass through a machine head to form various cross-sectional articles or semi-finished articles. The aerosol substrate formed by extrusion molding is in the shape of a strip.

[0076] Since the aerosol generating substrate 21 is a particulate combination, the aerosol generating substrate 21 is an integrated medium after being heated and inhaled or stopped being heated, and the phenomenon of disintegration and falling is not easy to occur, thus solving the problems of aerosol generating substrate 21 in the form of flaky, filamentous or loose particulates in the prior art, such as flake loosening, detachment of filamentous and particulate components, and difficulty in cleaning.

[0077] The shape of the aerosol generating substrate 21 is also not limited as long as the first gas passages 212 can be formed. By way of example, referring to FIG. 6, the aerosol generating substrate 21 may be columnar. The cross-section of the columnar aerosol generating substrate 21 may be circular, polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.. The special-shape refers to other symmetrical or asymmetrical shapes other than those listed above.

[0078] The gas intake side X1 of the aerosol generating substrate 21 is an end of the aerosol generating substrate 21 through which the outside gas flow flows into the aerosol generating substrate 21, and the gas outlet side X2 of the aerosol generating substrate 21 is an end of the aerosol generating substrate 21 through which the gas flow flows out of the aerosol generating substrate 21, that is, the flow direction of the gas flow is from the gas intake side X1 to the gas outlet side X2 of the aerosol generating substrate 21.

[0079] Each of the first gas passages 212 is a passage for gas flow to pass through the aerosol generating substrate 21, and the aerosol released during heating of the aerosol generating substrate 21 may also enter the first gas passages 212.

[0080] The number of the first gas passages 212 may be two or more.

[0081] By way of example, referring to FIG. 7, the aerosol generating substrate 21 may include a plurality of protrusions 213 surrounding a circumference of the base portion 211, and the first gas passage 212 is formed between two adjacent protrusions 213.

[0082] By way of example, a plurality of first gas passages 212 may also be formed inside the aerosol generating substrate 21.

[0083] Please continue to refer to FIGS. 6 to 10, the separation section 22 is provided on the gas intake side X1, the separation section 22 includes a plurality of gas intake channels 2211 spaced apart from each other, the separation section 22 separates the plurality of first gas passages 212 from each other by the gas intake channels 2211, and each of the gas intake channels 2211 is in communication with at least one of the first gas passages 212.

[0084] The separation section 22 extends into the atomization base 13 and is connected to the connection joint 14a.

[0085] By way of example, the separation section 22 may be provided with a rotation connector 222 and a separator 221 having a plurality of gas intake channels 2211, and the connection joint 14a can be connected with the rotation connector 222.

[0086] The material of the separator 221 may be food silica gel, PLA, PEEK, or the like.

[0087] The material of the rotation connector 222 may be a high-density filter cotton.

[0088] Referring to FIGS. 8 to 10, the separator 221 may be provided with a plurality of grille bars 2212, and the gas intake channel 2211 is formed between adjacent grille bars 2212.

[0089] By way of example, the length of the grid bar 2212 may range from 2 mm to 10 mm (inclusive of the endpoint values), for example, the length of the grid bar 2212 may be 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc.

[0090] Referring to FIG. 12, the separator 221 may also be provided with a main body 2214 having an annular hollowed-out region, and the gas intake channels 2211 may be formed by providing a corrugated structure 2215 within the hollowed-out region.

[0091] In other embodiments, the corrugated structure 2215 may also be replaced with relatively loose filter cotton.

[0092] The gas intake channel 2211 is in communication with the gas inlet 13d, and the outside gas flow enters the gas intake channel 2211 from the gas inlet 13d, and then enters the first gas passage 212 in communication with the gas intake channel 2211 from the gas intake channel 2211.

[0093] Each gas intake channel 2211 can only communicate with some of the first gas passages 212 of the aerosol generating substrate 21, and none of the gas intake channels 2211 can communicate with all of the first gas passages 212 of the aerosol generating substrate 21 at the same time.

[0094] By way of example, referring to FIG. 10, the gas intake channels 2211 may communicate with the first gas passages 212 in one-to-one correspondence, that is, the number of the gas intake channels 2211 is the same as the number of the first gas passages 212, each of the gas intake channels 2211 is in communication with only one first gas passage 212, and the same first gas passage 212 does not communicate with two or more gas intake channels 2211.

[0095] By way of example, referring to FIG. 11, when the number of first gas passages 212 is at least three, each of the gas intake channels 2211 may also communicate with two adjacent first gas passages 212.

[0096] Referring to FIGS. 1 and 13, after the separation section 22 is connected to the connection joint 14a, the gas inlet 13d of the atomization base 13 will only communicate with part of the gas intake channels 2211, that is, the gas inlet 13d may communicate with one gas intake channel 2211 or communicate with more than one gas intake channels 2211, but may not communicate with all the gas intake channels 2211, and the outside gas flow mainly flows into the first gas passages 212 in communication with the gas inlet 13d, but hardly flows into the other first gas passages 212.

[0097] Referring to FIGS. 6 and 18, the aerosol generating article 20 may also be provided with a functional section 23 on the gas outlet side X2 of the aerosol generating substrate 21, and the functional section 23 may be provided with only a filter section for filtering the aerosol, or may be provided with a filter section and a cooling section. For the functional section 23 provided with the cooling section, the cooling section is provided between the filter section and the aerosol generating substrate 21, for cooling the aerosol before the filter section filters the aerosol, so as to reduce the temperature of the aerosol and improve the phenomenon of "burning the mouth" when the user inhales the aerosol.

[0098] Referring to FIGS. 5 and 17, the aerosol generating article 20 may further be provided with an outer wrapping layer 24 that wraps around the outer periphery of each of the aerosol generating substrate 21, the separation section 22, and the functional section 23.

[0099] Further, referring to FIG. 17, for the atomization base 13 in which the gas inlet 13d is provided on the side wall 132, pores 24a in communication with the gas intake channels 2211 may be provided in the outer wrapping layer 24, and the gas inlet 13d is in communication with the gas intake channels 2211 through the pores 24a.

[0100] Taking the aerosol generating device 10 shown in FIGS. 1 and 13 as an example, in the process of loading the aerosol generating article 20 into the aerosol generating device 10, an end of the aerosol generating article 20 provided with the separation section 22 is inserted into the insertion channel 11a from the insertion port 11b, and moves along the insertion channel 11a towards the atomization base 13, and finally the separation section 22 enters the mounting groove 13a from the mounting opening 13b of the atomization base 13 and is connected to the connection joint 14a.

[0101] Referring to FIGS. 1 and 13, since the gas inlet 13d can communicate with the first gas passages 212 located within the irradiation range of the laser generating device 12, the aerosol generated by the heating of the aerosol generating substrate 21 will enter the first gas passages 212 in communication with the gas inlet 13d. That is, both the outside gas flow and the aerosol generated by the heating of the aerosol generating substrate 21 enter the first gas passages 212 in communication with the gas inlet 13d. Therefore, during the user's inhaling process, a large amount of gas flow can carry the aerosol out of the first gas passages 212, and the capture rate of the aerosol can reach over 90%, which can effectively improve the capture rate of the aerosol.

[0102] In one embodiment, referring to FIGS. 1, 7 and 13, a second gas passage 214 may be provided inside the base portion 211, the second gas passage 214 extends through the gas inlet side X1 and the gas outlet side X2, and the second gas passage 214 may collect aerosol generated by heating of the base portion 211, so that the aerosol can flow through the second gas passage 214 to improve the aerosol extraction efficiency.

[0103] For the aerosol generating substrate 21 provided with the second gas passage 214, by way of example, referring to FIGS. 1, 6 and 8, the separator 221 may be provided with a blocking channel 2216, the plurality of gas intake channels 2211 surround the circumference of the blocking channel 2216, the blocking channel 2216 is in communication with the second gas passage 214, and the rotation connector 222 may be provided at least in the blocking channel 2216, that is, the rotation connector 222 may be provided only in the blocking channel 2216 as shown in FIGS. 1, 6 and 8, or in both the blocking channel 2216 and the second gas passage 214 to block the second gas passage 214. In other words, the rotation connector 222 has both functions of connecting to the connection joint 14a of the rotation driving mechanism 14 and blocking the second gas passage 214.

[0104] By way of example, referring to FIGS. 13, 18 and 19, the separation section 22 may also be provided with a separator 221 having a shielding portion 2213, a plurality of gas intake channels 2211 surround a circumference of the shielding portion 2213, the shielding portion 2213 shields a gas passage port of the second gas passage 214 on the gas intake side X1, that is, the shielding portion 2213 blocks the outside gas flow from flowing into the second gas passage 214, and the rotation connector 222 is provided on a side of the separator 221 facing away from the aerosol generating substrate 21.

[0105] Specifically, the second gas passage 214 extends through the gas intake side X1 and the gas outlet side X2, which can facilitate machining of the second gas passage 214, but during the heating process of the laser generating device 12, the aerosol mainly enters the first gas passages 212 in communication with the gas inlet 13d, and only a small amount of aerosol enters the second gas passage 214, so that the gas passage port of the second gas passage 214 on the gas intake side X1 can be shielded or blocked to prevent the outside gas flow from flowing into the second gas passage 214.

[0106] In addition, it should be noted that although the outside gas flow cannot flow into the second gas passage 214, the aerosol in the second gas passage 214 can still flow out of the second gas passage 214 during the inhaling process, but the effect is relatively poor compared with the use of the outside gas flow to extract the aerosol.

[0107] In one embodiment, referring to FIGS. 2 to 4, the bottom wall 131 has an outer surface 131a facing away from the mounting groove 13a and an inner surface 131b close to the mounting groove 13a, and for the atomization base 13 in which the gas inlet 13d is provided on the bottom wall 131, the gas inlet 13d has a first opening 13dla located on the outer surface 131a and a second opening 13d2a located on the inner surface 131b, and the cross-sectional dimension of the first opening 13d1a may be smaller than the cross-sectional dimension of the second opening 13d2a.

[0108] Specifically, since the bottom wall 131 has a certain thickness, and thus after the gas inlet 13d extends through the bottom wall 131, the first opening 13dla is formed on the outer surface 131a of the bottom wall 131, and the second opening 13d2a is formed on the inner surface 131b of the bottom wall 131.

[0109] When the outside gas flow passes through the gas inlet 13d, it enters the gas inlet 13d from the first opening 13d1a and flows out from the second opening 13d2a.

[0110] The cross-sectional dimension of the first opening 13d1a is smaller than the cross-sectional dimension of the second opening 13d2a, which can play a role in adjusting the inhaling resistance to meet the inhaling resistance requirement during inhaling.

[0111] The shape of the first opening 13d1a is not limited, for example, the first opening 13d1a shown in FIGS. 2 and 3 is circular. The circular first opening 13d1a is convenient for machining and manufacturing.

[0112] By way of example, a diameter of the first opening 13d1a may range from 0.5 mm to 1.5 mm (including endpoint values), for example, the diameter of the first opening 13d1a may be 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, or the like.

[0113] In other embodiments, the first opening 13d1a may also be polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.

[0114] The shape of the second opening 13d2a is not limited. For example, the second opening 13d2a may have an elongated strip shape extending in the circumferential direction of the bottom wall 131 as shown in FIGS. 2 and 3. The elongated strip shape extending in the circumferential direction of the bottom wall 131 may facilitate the gas inlet 13d to communicate with the plurality of first gas passages 212 located within the irradiation range of the laser.

[0115] In other embodiments, the second opening 13d2a may also be polygonal (including but not limited to triangular, square, prismatic, etc.), elliptical, track-shaped, special-shaped, etc.

[0116] Referring to FIGS. 2 to 4, the gas inlet 13d may include a first segment 13d1 having a first opening 13d1a and a second segment 13d2 having a second opening 13d2a, and at least one of the first segment 13d1 and the second segment 13d2 may be provided as a constant cross-section structure.

[0117] The constant cross-section structure refers to a structure having a cross-sectional dimension unchanged.

[0118] In FIGS. 2 to 4, both the first segment 13d1 and the second segment 13d2 are provided as constant cross-section structures, that is, the cross-sectional size of the entire first segment 13d1 is the same as that of the first opening 13d1a, and the cross-sectional size of the entire second segment 13d2 is the same as that of the second opening 13d2a.

[0119] Both the first segment 13d1 and the second segment 13d2 are provided as constant cross-section structures, which can facilitate machining of the gas inlet 13d.

[0120] In other embodiments, one of the first segment 13d1 and the second segment 13d2 may be provided as a constant cross-section structure. For example, the first segment 13d1 may be provided as a constant cross-section structure, and the second segment 13d2 may be provided as a variable cross-section structure; or the first segment 13d1 may be provided as a variable cross-section structure, and the second segment 13d2 may be provided as a constant cross-section structure. The variable cross-section structure refers to a structure having a cross-sectional dimension varied, that is, the cross-sectional dimension, at at least one position, of the variable cross-section structure is different from cross-sectional dimensions at other positions of the variable cross-section structure.

[0121] In other embodiments, the cross-sectional dimension of the gas inlet 13d may also gradually increase from the first opening 13d1a to the second opening 13d2a, that is, the gas inlet 13d is not clearly segmented, and the cross-sectional dimension of the gas inlet 13d gradually changes from the first opening 13d1a to the second opening 13d2a.

[0122] In one embodiment, referring to FIGS. 14 and 15, for the atomization base 13 in which the gas inlet 13d is provided on the side wall 132, the gas inlet 13d may be a circumferentially closed hole, that is, the side wall 132 may be formed with the gas inlet 13d by making a hole in the side wall.

[0123] In another embodiment, referring to FIG. 16, the gas inlet 13d may is in the shape of a notch that is open on a side close to the mounting opening 13b.

[0124] Referring to FIGS. 14 to 16, regardless of whether the gas inlet 13d is in the shape of a hole or a notch, the gas inlet 13d may extend in the circumferential direction of the side wall 132 so that the gas inlet 13d can communicate with the plurality of first gas passages 212 located within the irradiation range of the laser.

[0125] Referring to FIGS. 14 to 16, a portion of the side wall 132 may also protrude into the mounting groove 13a to form an annular sealing rib 132a.

[0126] The annular sealing rib 132a is configured to be in sealing contact with the aerosol generating article 20 to improve the sealing of the aerosol generating article 20 with the atomization base 13.

[0127] The annular sealing rib 132a may be a circumferentially closed ring, or may be a ring having an opening.

[0128] By way of example, referring to FIGS. 14 to 16, at least two annular sealing ribs 132a may be provided, and the annular sealing ribs 132a may be provided on a side of the gas inlet 13d close to the mounting opening 13b and on a side of the gas inlet 13d facing away from the mounting opening 13b, respectively, to improve the sealing performance.

[0129] In other embodiments, a portion of the outer side wall of the support tube may also be recessed to form a recess, and the recess extends through opposite ends of the support tube in the first direction.

[0130] In the description of the present application, descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in still other embodiments" or "by way of example" mean that specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic expression of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. Furthermore, those skilled in the art can combine different embodiments or examples described in the present application and features of different embodiments or examples without contradicting each other.

[0131] The above description merely involves preferred embodiments of the present application, and is not intended to limit the present application, and various modifications and variations may be made to those skilled in the art. Any modification, equivalent substitution, and improvement, etc. made within the spirit and principle of the present application are included within the scope of protection of the present application.

Examples

Embodiment Construction

[0039]Embodiments of the present application provide an aerosol generating device 10. Referring to FIGS. 1 to 19, the aerosol generating device 10 can be used in conjunction with an aerosol generating article 20 having a plurality of first gas passages 212.

[0040]Specifically, the aerosol generating device 10 heats and atomizes the aerosol generating article 20 to generate an aerosol for a user to inhale it or for use it in medicine, beauty, or the like.

[0041]Referring to FIGS. 1 and 13, the aerosol generating device 10 includes a housing 11, an atomization base 13, a laser generating device 12, and a rotation driving mechanism 14.

[0042]The housing 11 is provided with an insertion channel 11a, the insertion channel has an insertion port 11b at an end of the insertion channel, and the aerosol generating article 20 is inserted into the insertion channel 11a through the insertion port.

[0043]Referring to FIGS. 1 and 13, after the aerosol generating article 20 is inserted into the inserti...

Claims

1. An atomization base for an aerosol generating device, characterized in that the atomization base is formed with a mounting groove and a gas inlet in communication with the mounting groove, the mounting groove is configured to receive at least a portion of an aerosol generating article, and the aerosol generating article comprises a plurality of first gas passages; wherein the atomization base and the aerosol generating article move relative to each other so that the gas inlet is in communication with part of the plurality of the first gas passages.

2. The atomization base according to claim 1, characterized in that the atomization base comprises a bottom wall and a side wall located on a side of the bottom wall, the bottom wall and the side wall form and enclose the mounting groove, and the gas inlet is provided in the bottom wall or the side wall.

3. The atomization base according to claim 2, characterized in that the bottom wall has an outer surface facing away from the mounting groove and an inner surface close to the mounting groove, the gas inlet is provided in the bottom wall, the gas inlet has a first opening located on the outer surface and a second opening located on the inner surface, and a cross-sectional dimension of the first opening is smaller than a cross-sectional dimension of the second opening.

4. The atomization base according to claim 3, characterized in that the first opening is circular; and / or the second opening is in a shape of an elongated strip extending in a circumferential direction of the bottom wall.

5. The atomization base according to claim 4, characterized in that the first opening is circular, and the first opening has a diameter ranging from 0.5 mm to 1.5 mm.

6. The atomization base according to any one of claims 3 to 5, characterized in that the gas inlet comprises a first segment having the first opening and a second segment having the second opening, wherein at least one of the first segment and the second segment is provided as a constant cross-section structure; or, a cross-sectional dimension of the gas inlet gradually increases from the first opening to the second opening.

7. The atomization base according to claim 2, characterized in that the gas inlet is provided in the side wall; the gas inlet is in a shape of a circumferentially closed hole; or, an end of the mounting groove opposite to the bottom wall has a mounting opening, and the gas inlet is in a shape of a notch that is open on a side close to the mounting opening.

8. The atomization base according to claim 7, characterized in that the gas inlet extends in a circumferential direction of the side wall.

9. The atomization base according to claim 7 or 8, characterized in that portions of the side wall project into the mounting groove to form annular sealing ribs.

10. The atomization base according to claim 7, characterized in that the number of the annular sealing ribs is at least two, and the annular sealing ribs are respectively provided on a side of the gas inlet close to the mounting opening and on a side of the gas inlet away from the mounting opening.

11. The atomization base according to claim 1, characterized in that the bottom wall of the mounting groove is provided with a driving mechanism avoidance opening.

12. An aerosol generating device, characterized in that the aerosol generating device comprises: a housing, wherein the housing is provided with an insertion channel having an insertion port at an end of the insertion channel; an atomization base according to any one of claims 1 to 11, wherein the atomization base is provided in the housing and is located at an end of the insertion channel opposite to the insertion port, and the mounting groove is in communication with the insertion channel; a laser generating device provided in the housing, wherein the laser generating device is configured to heat a portion of an outer side wall of the aerosol generating article; a rotation driving mechanism configured to drive one of the atomization base and the aerosol generating article to rotate, so that the gas inlet is in communication with the first gas passages within an irradiation range of the laser generating device.

13. The aerosol generating device according to claim 12, characterized in that the laser generating device is positioned outside the insertion channel, and an emitting end of the laser generating device faces the insertion channel.

14. The aerosol generating device according to claim 12 or 13, characterized in that the rotation driving mechanism has a connection joint; the connection joint is connected with the atomization base; or, the bottom wall of the mounting groove is provided with a driving mechanism avoidance opening, and the connection joint passes through the driving mechanism avoidance opening to extend into the mounting groove and connect with the aerosol generating article.

15. An aerosol generating article, characterized in that the aerosol generating article comprises: an aerosol generating substrate having a gas intake side and a gas outlet side that are opposite to each other, wherein the aerosol generating substrate comprises a base portion and a plurality of first gas passages surrounding a circumference of the base portion, each of the first gas passages extends from the gas intake side towards the gas outlet side, and at least an end of each of the first gas passages close to the gas intake side is an open end; a separation section provided on the gas intake side, wherein the separation section has a plurality of gas intake channels spaced apart from each other, the separation section separates the plurality of the first gas passages from each other by the gas intake channels, and each of the gas intake channels is in communication with at least one of the first gas passages.

16. The aerosol generating article according to claim 15, characterized in that the gas intake channels are in communication with the first gas passages in one-to-one correspondence; or, the number of the first gas passages is at least three, and each of the gas intake channels is in communication with two adjacent first gas passages of the first gas passages.

17. The aerosol generating article according to claim 15 or 16, characterized in that the aerosol generating substrate comprises a plurality of protrusions surrounding a circumference of the base portion, wherein each of the first gas passages is formed between two adjacent protrusions of the protrusions.

18. An aerosol generating article according to claim 15 or 16, characterized in that the base portion is provided with a second gas passage inside the base portion, the second gas passage extending through the gas intake side and the gas outlet side, wherein the separation section comprises a separator and a rotation connector; and wherein the separator comprises a shielding portion and the plurality of gas intake channels surrounding a circumference of the shielding portion, the shielding portion shields a gas passage port of the second gas passage on the gas intake side, and the rotation connector is provided on a side of the separator facing away from the aerosol generating substrate; or, the separator comprises a blocking channel and the plurality of gas intake channels surrounding a circumference of the blocking channel, the blocking channel is in communication with the second gas passage, and the rotation connector is provided at least in the blocking channel to block the second gas passage.

Images