Aerosol generating device

Abstract

An aerosol-generating device (100) includes a holder (10) and a rotating assembly (20), a heating assembly (30), and a driving assembly (40) that are mounted on the holder (10). The rotating assembly (20) is configured to drive an aerosol-generating substrate (110) to rotate; the heating assembly (30) corresponds to at least one substrate portion (1101) of the aerosol-generating substrate (110); and the driving assembly (40) is configured to drive the rotating assembly (20) and / or the heating assembly (30) to rotate relative to the holder (10).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to and the benefit of Patent Application No. 202211525063. X, filed with the China National Intellectual Property Administration on November 30, 2022, which is incorporated by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the field of atomization device technologies, and more specifically, to an aerosol-generating device.BACKGROUND

[0003] Because of being healthy and having a high cost performance, an aerosol-generating device, for example, an electronic atomizer, is popular among a large number of users. A conventional aerosol-generating device usually heats an aerosol-generating substrate by using a heating assembly, to generate an aerosol for a user to inhale. However, during heating, the aerosol-generating substrate remains stationary. Therefore, the heating assembly heats only the fixed region of the aerosol-generating substrate. However, repeatedly heating the fixed region for a long time easily causes miscellaneous gas to be generated in the fixed region, affecting the taste of inhalation.SUMMARY

[0004] Implementations of this application provide an aerosol-generating device.

[0005] The aerosol-generating device in the implementations of this application includes a holder and a rotating assembly, a heating assembly, and a driving assembly that are mounted on the holder. The rotating assembly is configured to drive an aerosol-generating substrate to rotate, and the aerosol-generating substrate includes a plurality of substrate portions; the heating assembly corresponds to at least one substrate portion, and the heating assembly is configured to heat the corresponding substrate portion to generate an aerosol; and the driving assembly is configured to drive the rotating assembly and / or the heating assembly to rotate relative to the holder, so as to switch the at least one substrate portion corresponding to the heating assembly.

[0006] According to the aerosol-generating device in the implementations of this application, the driving assembly is configured to drive the rotating assembly and / or the heating assembly to rotate relative to the holder, so as to switch the at least one substrate portion of the aerosol-generating substrate corresponding to the heating assembly. In comparison with that the heating assembly heats the fixed region of the aerosol-generating substrate, the arrangement of the rotating assembly can avoid that the heating assembly repeatedly heats the fixed region, resulting in miscellaneous gas to be generated by the aerosol-generating substrate in the fixed region, thereby ensuring the inhalation taste of a user.

[0007] Additional aspects and advantages of this application will be given in the following description, some of which will become apparent from the following description or may be learned from practices of this application.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The foregoing and / or additional aspects and advantages of this application will become apparent and comprehensible in the description of the embodiments made with reference to the following accompanying drawings. FIG. 1 is a three-dimensional assembly schematic view of an aerosol-generating device according to some implementations of this application; FIG. 2 is a three-dimensional exploded schematic diagram of the aerosol-generating device shown in FIG. 1; FIG. 3 is a three-dimensional exploded schematic diagram of the aerosol-generating device shown in FIG. 1 from another perspective; FIG. 4 is a three-dimensional schematic diagram of a heating assembly in the aerosol-generating device shown in FIG. 1; FIG. 5 is a three-dimensional schematic diagram of the heating assembly shown in FIG. 4 from another perspective; FIG. 6 is a three-dimensional exploded schematic diagram of a part of a structure of the aerosol-generating device shown in FIG. 1; FIG. 7 is a three-dimensional exploded schematic diagram of the part of the structure of the aerosol-generating device shown in FIG. 6; FIG. 8 is a schematic cross-sectional view of the aerosol-generating device shown in FIG. 1; FIG. 9 is a schematic cross-sectional view of the aerosol-generating device shown in FIG. 1 from another perspective; FIG. 10 is a three-dimensional schematic diagram of an airflow detection assembly in the aerosol-generating device shown in FIG. 1; FIG. 11 is a schematic cross-sectional view of the airflow detection assembly shown in FIG. 10; FIG. 12 is a three-dimensional exploded schematic diagram of a part of a structure of the aerosol-generating device shown in FIG. 1; FIG. 13 is a three-dimensional schematic diagram of a decorative cover in a decorative assembly in the aerosol-generating device shown in FIG. 1; and FIG. 14 is a schematic flowchart of a control method according to some implementations of this application. DETAILED DESCRIPTION

[0009] To make the foregoing objects, features and advantages of this application more comprehensible, detailed description is made to specific implementations of this application below with reference to the accompanying drawings. In the following description, many specific details are described to give a full understanding of this application. However, this application may be implemented in many other manners different from those described herein. A person skilled in the art may make similar improvements without departing from the connotation of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0010] In the description of this application, it should be understood that, orientations or location relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are orientations or location relationship shown based on the accompanying drawings, and are merely used for describing this application and simplifying the description, rather than indicating or implying that the mentioned device or element should have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be construed as a limitation on this application.

[0011] In addition, terms "first" and "second" are only used for the purpose of description, and shall not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, "a plurality of" means at least two, for example, two and three unless it is specifically defined otherwise.

[0012] In this application, unless otherwise explicitly specified and defined, terms such as "mounted", "connected", "connection", and "fixed" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediate medium, or internal communication between two elements or mutual action relationship between two elements, unless otherwise clearly limited. A person of ordinary skill in the art may understand specific meanings of the foregoing terms in this application according to specific situations.

[0013] In this application, unless otherwise explicitly specified and defined, a first feature "on" or "under" a second feature may indicate that the first feature and the second feature are in direct contact, or the first feature and the second feature are in indirect contact through an intermediate medium. In addition, the first feature is "above", "over", and "on" the second feature may indicate that the first feature is directly above or obliquely above the second feature, or may merely indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under", and "beneath" the second feature may indicate that the first feature is directly below or obliquely below the second feature, or may merely indicate that the horizontal height of the first feature is lower than that of the second feature.

[0014] It should be noted that, when an element is referred to as "being fixed to" or "being arranged on" another element, the element may be directly on the other element, or an intermediate element may be present. When an element is considered to be "connected to" another element, the element may be directly connected to the other element, or an intermediate element may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this specification are merely used for the purpose of illustration but not indicate a unique implementation.

[0015] Because of being healthy and having a high cost performance, an aerosol-generating device, for example, an electronic atomizer, is popular among a large number of users. A conventional aerosol-generating device usually heats an aerosol-generating substrate by using a heating assembly, to generate an aerosol for a user to inhale. However, because the heating assembly needs to work based on a specific heating time and frequency, and the heating assembly heats only the fixed region of the aerosol-generating substrate, the aerosol-generating substrate cannot be adjusted when an amount of aerosol generated by heating the aerosol-generating substrate is excessively large or excessively small, which not only affects the inhalation taste of a user, but also causes a problem of insufficient liquid supply and dry heating of the heating assembly. Referring to FIG. 1, to resolve this problem, this application provides an aerosol-generating device 100.

[0016] Referring to FIG. 1 and FIG. 2, the aerosol-generating device 100 according to an implementation of this application includes a holder 10 and a rotating assembly 20, a heating assembly 30, and a driving assembly 40 that are mounted on the holder 10. The rotating assembly 20 is configured to drive an aerosol-generating substrate 110 to rotate, and the aerosol-generating substrate 110 includes a plurality of substrate portions 1101. The heating assembly 30 corresponds to at least one substrate portion 1101, and the heating assembly 30 is configured to heat the corresponding substrate portion 1101 to generate an aerosol. The driving assembly 40 is configured to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 corresponding to the heating assembly 30.

[0017] The aerosol-generating substrate 110 is an element that can generate the aerosol through heating, ultrasound, mechanical vibration, or the like. The aerosol is a multiphase fluid with gas as the continuous phase and solid or liquid as the dispersed phase. In some implementations, the aerosol-generating substrate 110 is an atomization substrate carrier loaded with e-liquid. The e-liquid is a mixed liquid in which a substance such as nicotine is dissolved, and a solute thereof is a common organic solute such as propylene glycol or vegetable glycerol and / or a common inorganic solute such as pure water. After being heated by the heating assembly 30, the e-liquid is dispersed into tiny mixed liquid droplets, and mixed with air to form the aerosol. In some other implementations, the aerosol-generating substrate 110 is a leaf atomization substrate. After being heated by the heating assembly 30, the leaf atomization substrate volatilizes out tiny solid particles, and mixed with air to form the aerosol. A location of the aerosol-generating substrate 110 corresponding to the heating assembly 30 includes a substrate portion 1101, where the substrate portion 1101 is a part of a structure of the aerosol-generating substrate 110 that corresponds to the heating assembly 30 and that can be heated by the heating assembly 30 to generate the aerosol. A cross-sectional shape of the substrate portion 1101 may be, but is not limited to, circular, square, fan-shaped, or the like.

[0018] In some implementations, the cross-sectional shape of the substrate portion 1101 may be circular, square, fan-shaped, or the like. This is not limited herein. The substrate portion 1101 corresponds to the heating assembly 30 and can be heated by the heating assembly 30 to generate the aerosol. In an embodiment, the plurality of substrate portions 1101 of the aerosol-generating substrate 110 may have the same areas and shapes. When the rotating assembly 20 rotates relative to the holder 10, the heating assembly 30 corresponds to different substrate portions 1101, and the arrangement of the plurality of equivalent substrate portions 1101 can enable the driving assembly 40 to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10 by the same angle each time, thereby simplifying a control program of the driving assembly 40.

[0019] In another embodiment, the plurality of substrate portions 1101 of the aerosol-generating substrate 110 may have different areas or shapes. For example, an area of one substrate portion 1101 is 1, an area of another substrate portion 1101 is 2, an area of yet another substrate portion 1101 is 3, and so on. The arrangement of the plurality of different substrate portions 1101 can enable the aerosol-generating device 100 to make the heating assembly 30 correspond to the different substrate portions 1101 according to an inhalation habit of the user (for example, the user likes to inhale a small amount of aerosols first and then inhales a large amount of aerosols), so that the aerosol-generating substrate 110 is prevented from generating an excessively large or excessively small amount of aerosols when being heated, thereby ensuring the inhalation taste of the user. It should be noted that, in some implementations, flavor types of the aerosol-generating substrate 110 corresponding to the plurality of substrate portions 1101 may be the same or different. When the plurality of substrate portions 1101 corresponds to different types of the aerosol-generating substrate 110, for example, a type of the aerosol-generating substrate 110 corresponding to one substrate portion 1101 is mint flavor, and a type of the aerosol-generating substrate 110 corresponding to another substrate portion 1101 is jasmine flower flavor, the user can experience a plurality of types of flavor when the heating assembly 30 corresponds to different substrate portions 1101, thereby improving user experience.

[0020] According to this application, the aerosol-generating device 100 uses the driving assembly 40 to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 of the aerosol-generating substrate 110 corresponding to the heating assembly 30. In comparison with that the heating assembly 30 heats the fixed region of the aerosol-generating substrate 110, the arrangement of the rotating assembly 20 can avoid that the heating assembly 30 repeatedly heats the fixed region, resulting in miscellaneous gas to be generated by the aerosol-generating substrate 110 in the fixed region, thereby ensuring the inhalation taste of the user.

[0021] The following further describes the aerosol-generating device 100 with reference to the accompanying drawings.

[0022] Referring to FIG. 1 and FIG. 2, in some implementations, the aerosol-generating device 100 includes a holder 10, a rotating assembly 20, a heating assembly 30, and a driving assembly 40. The rotating assembly 20, the heating assembly 30, and the driving assembly 40 are all mounted on the holder 10. The rotating assembly 20 is configured to load the aerosol-generating substrate 110. The heating assembly 30 is configured to heat the substrate portion 1101 corresponding to the heating assembly 30, so as to generate an aerosol for a user to inhale. The driving assembly 40 is configured to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch at least one substrate portion 1101 corresponding to the heating assembly 30.

[0023] In some implementations, when the aerosol-generating device 100 is inhaled, the heating assembly 30 heats the at least one substrate portion 1101 currently corresponding to the heating assembly 30. When the aerosol-generating device 100 is stopped from being inhaled, the heating assembly 30 stops heating the at least one substrate portion 1101 currently corresponding to the heating assembly 30, and the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 corresponding to the heating assembly 30.

[0024] Specifically, when the aerosol-generating device 100 is inhaled, the heating assembly 30 is activated and heats the substrate portion 1101 currently corresponding to the heating assembly 30, so that the corresponding substrate portion 1101 is heated to generate the aerosol for the user to inhale. When the aerosol-generating device 100 is stopped from being inhaled, the heating assembly 30 stops heating the substrate portion 1101 currently corresponding the heating assembly 30, and simultaneously, the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. When the aerosol-generating device 100 is inhaled next time, the heating assembly 30 is reactivated and heats a switched substrate portion 1101 corresponding to the heating assembly 30.

[0025] In an embodiment, the driving assembly 40 may drive only the rotating assembly 20 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. In comparison with that the driving assembly 40 drives the rotating assembly 20 and the heating assembly 30 to rotate relative to the holder 10 together, the driving assembly 40 drives only the rotating assembly 20 to rotate, so that work consumption of the driving assembly 40 can be reduced, and a problem of line winding when the heating assembly 30 rotates can be avoided. In another embodiment, the driving assembly 40 may drive the heating assembly 30 to rotate relative to the holder 10, to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. The driving assembly 40 directly drives the heating assembly 30 to rotate, so that accuracy of correspondence of the heating assembly 30 to different substrate portions 1101 can be ensured, thereby improving working efficiency of the aerosol-generating device 100. In this case, wireless control may be used for the heating assembly 30, or the driving assembly 40 may drive the heating assembly 30 to rotate in a forward and reverse driving manner, to avoid a problem of line winding during rotation of the heating assembly 30. In still some other embodiments, the driving assembly 40 may drive the rotating assembly 20 and the heating assembly 30 to rotate relative to the holder 10 together, to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. The rotating assembly 20 and the heating assembly 30 have different rotation speeds or rotation directions, to ensure that the heating assembly 30 can correspond to different substrate portions 1101.

[0026] In some implementations, the aerosol-generating device 100 may alternatively manually drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10. In other words, when the aerosol-generating device 100 is stopped from being inhaled, the heating assembly 30 stops heating the at least one substrate portion 1101 currently corresponding to the heating assembly 30, and simultaneously, the aerosol-generating device 100 manually drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. The manual driving can reduce power consumption of the aerosol-generating device 100, and simplify a structure of the aerosol-generating device 100. In addition, the manual driving can further improve interest of the aerosol-generating device 100, and improve use experience of the aerosol-generating device 100.

[0027] Referring to FIG. 2 and FIG. 3, in some implementations, the holder 10 includes a first sub-holder 11 and a second sub-holder 13 mounted on a top 113 of the first sub-holder 11. The rotating assembly 20 is mounted on a top 135 of the second sub-holder 13. The heating assembly 30 is located between the rotating assembly 20 and a bottom 115 of the first sub-holder 11. One part of the driving assembly 40 is located between the heating assembly 30 and the bottom 115 of the first sub-holder 11, and the other part of the driving assembly 40 extends through the heating assembly 30 and is connected to the rotating assembly 20. When the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, the heating assembly 30 can correspond to different substrate portions 1101 of the aerosol-generating substrate 110 in the rotating assembly 20. In an embodiment, the holder 10 may be made of a metal material such as aluminum alloy or stainless steel, that is, both the first sub-holder 11 and the second sub-holder 13 may be made of a metal material such as aluminum alloy or stainless steel, so that a heat dissipation effect of the aerosol-generating device 100 can be improved, and normal working of the aerosol-generating device 100 can be ensured. In another embodiment, the holder 10 may be made of a plastic material such as PC or PCTG, that is, both the first sub-holder 11 and the second sub-holder 13 may be made of a plastic material such as PC or PCTG, so that a weight of the holder 10 can be reduced, and the aerosol-generating device 100 is more lightweight. Certainly, in other embodiments, one of the first sub-holder 11 and the second sub-holder 13 may be made of a metal material such as aluminum alloy or stainless steel, and the other one of the sub-holder 11 and second sub-holder 13 may be made of a plastic material such as PC or PCTG.

[0028] In some implementations, the first sub-holder 11 and the second sub-holder 13 may be connected through a detachable mounting manner such as screws or engagement. In this way, assembly of the aerosol-generating device 100 can be facilitated, thereby improving production efficiency, and when a device (for example, the rotating assembly 20, the heating assembly 30, and the driving assembly 40) in the holder 10 is faulty, the faulty device may be conveniently disassembled for repair or replacement. In some other implementations, the first sub-holder 11 and the second sub-holder 13 may be connected in a non-detachable mounting manner such as welding, riveting, or gluing. In this way, mounting stability of the first sub-holder 11 and the second sub-holder 13 can be ensured, which avoids a risk that the holder 10 is disconnected or falls off during use of the aerosol-generating device 100.

[0029] Referring to FIG. 2 and FIG. 3, in some implementations, the rotating assembly 20 includes a bearing disk 21 and a bin cover 23. The bearing disk 21 is mounted on the top of the holder 10. The bin cover 23 is mounted on the top of the bearing disk 21, and jointly forms a storage bin 210 with the bearing disk 21. The storage bin 210 is configured to accommodate the aerosol-generating substrate 110.

[0030] Specifically, the bearing disk 21 is rotatably mounted on the top 135 of the second sub-holder 13, and the bin cover 23 is mounted on the top of the bearing disk 21. In some implementations, both the bearing disk 21 and the bin cover 23 may be made of a material of polyether ether ketone (PEEK), so as to prevent deformation and damage of the bearing disk 21 and the bin cover 23 caused by a high temperature generated when the heating assembly 30 heats the aerosol-generating substrate 110, thereby ensuring use safety of the aerosol-generating device 100. Certainly, in some other implementations, the bearing disk 21 and the bin cover 23 may alternatively be made of another material with high temperature resistance. This is not limited herein.

[0031] In an embodiment, the bearing disk 21 and the bin cover 23 may be connected in a detachable mounting manner such as screw connection, bolts, or snapping, to facilitate replacement when the aerosol-generating substrate 110 is exhausted. In another embodiment, the bearing disk 21 and the bin cover 23 may be connected in a non-detachable mounting manner such as welding, riveting, or gluing. In this way, working stability of the rotating assembly 20 is ensured.

[0032] In some implementations, the heating assembly 30 is configured to emit a laser toward the at least one substrate portion 1101 corresponding to the heating assembly 30, and the laser is configured to heat the at least one substrate portion 1101 corresponding to the heating assembly 30. A region of the bearing disk 21 corresponding to the substrate portion 1101 is a light-transmitting region 217 for the laser to pass through.

[0033] Specifically, when the aerosol-generating device 100 is inhaled, the heating assembly 30 is activated and emits the laser toward the at least one substrate portion 1101 corresponding to the heating assembly 30, so that the at least one substrate portion 1101 corresponding to the heating assembly 30 is heated to generate the aerosol for the user to inhale. When the aerosol-generating device 100 is stopped from being inhaled, the heating assembly 30 stops emitting the laser, and simultaneously or subsequently, the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the at least one substrate portion 1101 corresponding to the heating assembly 30. When the aerosol-generating device 100 is inhaled next time, the heating assembly 30 is reactivated and heats a switched substrate portion 1101. In comparison with heating manners of resistance heating and electromagnetic induction, the laser heating manner can reduce preheating time for the heating assembly 30 to heat the aerosol-generating substrate 110, thereby improving a speed at which the aerosol-generating substrate 110 generates the aerosol. Therefore, the aerosol-generating device 100 can ensure freshness of the aerosol generated during each inhalation by the user, thereby improving the inhalation taste of the user, and on-demand activation / deactivation upon inhalation can also be achieved, thereby improving inhalation experience of the user.

[0034] In some implementations, the light-transmitting region 217 may be a light-transmitting physical region. In other words, the light-transmitting region 217 may be made of a light-transmitting material such as glass or resin, so as to ensure that the laser emitted by the heating assembly 30 can pass through the light-transmitting region 217 to heat the corresponding substrate portion 1101, thereby reducing loss of the laser in a propagation path. In an embodiment, the light-transmitting region 217 of the bearing disk 21 is made of a light-transmitting material, and the remaining region of the bearing disk 21 is made of an opaque material, to prevent the laser from being irradiated to another substrate portion 1101, thereby ensuring an amount of aerosols generated during next inhalation. In another embodiment, the entire bearing disk 21 may be made of a light-transmitting material, which can ensure normal laser transmission, and enable the user to observe the remaining amount of the aerosol-generating substrate 110 and a generation status of the aerosol through the bearing disk 21.

[0035] In an embodiment, the aerosol-generating substrate 110 may be directly carried at the bottom of the bearing disk 21. The plurality of substrate portions 1101 of the aerosol-generating substrate 110 respectively abut against the light-transmitting region 217, thereby reducing the distance between the heating assembly 30 and the corresponding substrate portion 1101 and ensuring heating efficiency of the heating assembly 30. In addition, the aerosol-generating substrate 110 is directly supported by the bottom of the bearing disk 21, which can also facilitate mounting and replacement of the aerosol-generating substrate 110, thereby improving assembly efficiency of the aerosol-generating device 100. In another embodiment, the aerosol-generating substrate 110 can be mounted to the side wall of the bearing disk 21 through a mounting member (not shown in the figure). In this case, the plurality of substrate portions 1101 of the aerosol-generating substrate 110 and the light-transmitting region 217 are spaced apart from each other, to prevent the bottom of the bearing disk 21 from being burned when the heating assembly 30 heats the corresponding substrate portion 1101, thereby ensuring safety performance of the aerosol-generating device 100. It should be noted that, in some implementations, the mounting member may be made of a material of polyether ether ketone (PEEK) or another material with high temperature resistance.

[0036] Referring to FIG. 2, in some implementations, the rotating assembly 20 may further include a bearing frame 25. The bearing frame 25 is accommodated in the storage bin 210 and is fixed between the bearing disk 21 and the bin cover 23. The bearing frame 25 is configured to carry the aerosol-generating substrate 110, so as to space apart the aerosol-generating substrate 110 from the bottom of the bearing disk 21. A region of the bearing frame 25 corresponding to the substrate portion 1101 is a light-transmitting region 251 for the laser to pass through.

[0037] Specifically, the bearing frame 25 may be directly supported by the bottom of the bearing disk 21, or the bearing frame 25 is fixed between the bearing disk 21 and the bin cover 23 through a mounting member (not shown in the figure). The aerosol-generating substrate 110 is arranged on the side of the bearing frame 25 that faces away from the bottom of the bearing disk 21, so as to space apart the aerosol-generating substrate 110 from the bottom of the bearing disk 21. The region of the bearing frame 25 corresponding to the substrate portion 1101 is the light-transmitting region 251 for the laser to pass through, so that the laser can pass through the bearing disk 21 and the bearing frame 25 to heat the aerosol-generating substrate 110. It should be noted that, in some implementations, the bearing frame 25 may be made of a material of polyether ether ketone (PEEK) or another material with high temperature resistance.

[0038] In an implementation, the light-transmitting region 251 on the bearing frame 25 may be a light-transmitting physical region. In other words, the light-transmitting region 251 may be made of a light-transmitting material such as glass or resin, so as to ensure that the laser emitted by the heating assembly 30 passes through the light-transmitting region 251 to heat the corresponding substrate portion 1101, thereby reducing loss of the laser in a propagation path. In an embodiment, the light-transmitting region 251 of the bearing frame 25 is made of a light-transmitting material, and the remaining region of the bearing frame 25 is made of an opaque material, so as to prevent the laser from being irradiated to another substrate portion 1101, thereby ensuring an amount of aerosols generated during next inhalation. In another embodiment, the entire bearing frame 25 may be made of a light-transmitting material, thereby ensuring normal laser transmission.

[0039] In another implementation, the light-transmitting region 251 on the bearing frame 25 is a light-transmitting window region. In other words, the light-transmitting region 251 is a through hole extending through the bearing frame 25, so that loss that occurs in a process in which the laser transmits through the bearing frame 25 can be further reduced, thereby ensuring the heating efficiency of the heating assembly 30.

[0040] In some implementations, the bearing frame 25 is provided with a plurality of bearing regions 252, each bearing region 252 corresponds to one substrate portion 1101, one cavity 220 is formed between each substrate portion 1101 and the bearing disk 21 (as shown in FIG. 6), and the cavity 220 is configured to accommodate an aerosol generated by the substrate portion 1101.

[0041] Specifically, the aerosol-generating substrate 110 is carried on the bearing frame 25. Each substrate portion 1101 corresponds to one bearing region 252, and each substrate portion 1101, the bearing disk 21, and the bearing region 252 corresponding to the substrate portion 1101 jointly form the cavity 220. The aerosol generated by the heating assembly 30 by heating the corresponding substrate portion 1101 is in the corresponding cavity 220, and the peripheral wall of the cavity 220 can prevent the aerosol from entering another cavity 220. Therefore, when the aerosol-generating device 100 is inhaled, the aerosol generated by the heating assembly 30 by heating the corresponding substrate portion 1101 is prevented from being diffused into the entire storage bin 210, which can ensure an amount of aerosols during each inhalation, thereby satisfying inhalation experience of the user, and can also ensure freshness of the aerosol generated during next inhalation, thereby improving the inhalation taste of the user.

[0042] Referring to FIG. 2 and FIG. 6, in some implementations, the shape and the dimension of the outer contour of the bearing frame 25 are the same as the shape and the dimension of the inner contour of the bearing disk 21, and the shape and the dimension of each bearing region 252 are the same as the shape and the dimension of the corresponding substrate portion 1101, so that sealing of the cavity 220 jointly formed by the substrate portion 1101, the corresponding bearing region 252, and the bearing disk 21 can be ensured, and the aerosol generated by heating the substrate portion 1101 is prevented from entering another cavity 220 or leaking. Specifically, in an implementation of this application, the bearing frame 25 includes an inner ring 253, an outer ring 254, and a plurality of connecting arms 255 connecting the inner ring 253 and the outer ring 254. The plurality of connecting arms 255 divides the bearing frame 25 into a plurality of bearing regions 252, and each bearing region 252 corresponds to one substrate portion 1101. One cavity 220 is formed between each substrate portion 1101 and the bearing disk 21. Specifically, two adjacent connecting arms 255, an inner ring side wall 2531 between the two adjacent connecting arms 255, an outer ring side wall 2541 between the two adjacent connecting arms 255, and the substrate portion 1101 jointly enclose one cavity 220, and the cavity 220 can prevent the aerosol from entering another cavity 220, thereby ensuring freshness of the aerosol generated during each inhalation and improving the inhalation taste.

[0043] Referring to FIG. 2, in some implementations, the bearing disk 21 may further include a limiting block 218. The bearing frame 25 may further include an opening 256. When the bearing frame 25 is mounted on the bearing disk 21, the limiting block 218 can cooperate with the opening 256 to facilitate positioning and mounting of the bearing frame 25.

[0044] Referring to FIG. 2, in some implementations, the heating assembly 30 includes a support 31, a circuit board 33, and a laser chip 35 mounted on the circuit board 33. The support 31 is accommodated in the holder 10. The circuit board 33 is connected to the support 31. The laser chip 35 is configured to emit a laser.

[0045] Specifically, the support 31, the circuit board 33, and the laser chip 35 are all located between the rotating assembly 20 and the holder 10. The support 31 may be accommodated in the holder 10 in a manner such as gluing, welding, screw connection, or interference fit. The circuit board 33 is connected to the support 31, the laser chip 35 is mounted on the side of the circuit board 33 that faces the rotating assembly 20, and the emitting end of the laser chip 35 faces the rotating assembly 20, thereby ensuring normal heating of the corresponding substrate portion 1101 by the heating assembly 30. A mounting manner between the circuit board 33 and the laser chip 35 may be gluing, welding, screw connection, or the like. This is not limited herein.

[0046] In some implementations, the laser chip 35 is configured to heat the corresponding substrate portion 1101, so that the aerosol-generating substrate 110 rapidly generates the aerosol, thereby ensuring freshness of the aerosol during each inhalation by the user. In some other implementations, the heating assembly 30 may alternatively heat the substrate portion 1101 in a rapid heating manner such as plasma.

[0047] In some implementations, the aerosol-generating substrate 110 is in the shape of a sheet, the aerosol-generating substrate 110 is accommodated in the rotating assembly 20, and the exit direction of the laser is substantially consistent with the rotation axis of the rotating assembly 20.

[0048] Specifically, the sheet-shaped aerosol-generating substrate 110 includes a plurality of substrate portions 1101, and is accommodated in the storage bin 210. When the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, the heating assembly 30 can correspond to different substrate portions 1101. In an embodiment, the exit direction of the laser is completely the same as the rotation axis of the rotating assembly 20, that is, the exit direction of the laser is parallel to the rotation axis of the rotating assembly 20, or the exit direction of the laser is perpendicular to the upper surface or the lower surface of the aerosol-generating substrate 110, so as to ensure that the distance for the laser to reach the aerosol-generating substrate 110 is the shortest, thereby improving heating efficiency of the heating assembly 30, reducing time required for the heating assembly 30 to heat a substrate portion 1101 currently corresponding to the heating assembly 30 to generate the aerosol when the aerosol-generating device 100 is inhaled, achieving on-demand activation / deactivation upon inhalation, and improving inhalation experience of the user. In another implementation, the exit direction of the laser forms a small predetermined angle with the rotation axis of the rotating assembly 20. The small predetermined angle may be less than or equal to 30°.

[0049] In some implementations, each substrate portion 1101 is a sheet-shaped structure with a fan-shaped cross section. It should be noted that, in some implementations, areas of the substrate portions 1101 may be the same or different, that is, angles of sectors of cross sections of the substrate portions 1101 may be the same or different.

[0050] In some implementations, the aerosol-generating substrate 110 is in the shape of a column, the aerosol-generating substrate 110 is arranged inside the rotating assembly 20, and the exit direction of the laser is substantially perpendicular to the rotation axis of the rotating assembly 20.

[0051] Specifically, the columnar aerosol-generating substrate 110 includes a plurality of substrate portions 1101, and the aerosol-generating substrate 110 is at least partially accommodated in the storage bin 210. When the driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, the heating assembly 30 can correspond to different substrate portions 1101 of the aerosol-generating substrate 110. In an embodiment, the exit direction of the laser is perpendicular to the rotation axis of the rotating assembly 20, to ensure that the distance for the laser to reach the aerosol-generating substrate 110 is the shortest, thereby improving heating efficiency of the heating assembly 30, reducing time required for the heating assembly 30 to heat a substrate portion 1101 currently corresponding to the heating assembly 30 to generate the aerosol when the aerosol-generating device 100 is inhaled, further achieving on-demand activation / deactivation upon inhalation, and improving inhalation experience of the user. In another implementation, the exit direction of the laser forms a small predetermined angle with the rotation axis of the rotating assembly 20. For example, the small predetermined angle is less than or equal to 30°.

[0052] In an embodiment, the support 31 may be made of a metal material such as aluminum alloy or stainless steel, so as to avoid a problem that the support 31 is damaged by heat generated in a working process of the heating assembly 30, thereby ensuring normal working of the aerosol-generating device 100. In another embodiment, the support 31 may be made of a plastic material such as PC or PCTG, so that a weight of the support 31 can be reduced, and the aerosol-generating device 100 is more lightweight.

[0053] Referring to FIG. 1 and FIG. 3, in some implementations, the heating assembly 30 may further include a heat dissipation piece 37 mounted in the holder 10. The heat dissipation piece 37 is configured to dissipate heat for another element inside the heating assembly 30.

[0054] Specifically, the heat dissipation piece 37 may be mounted in the holder 10 in a manner such as bonding, welding, snap-fit, or interference fit. The heat dissipation piece 37 is at least partially supported by the second sub-holder 13. The heat dissipation piece 37 may be made of a material with high temperature resistance and a fast heat conduction speed, for example, a polyether ether ketone (PEEK) material, a high-melting-point metal, or ceramics with high temperature resistance. This is not limited herein. The arrangement of the heat dissipation piece 37 can dissipate heat for the circuit board 33 and the laser chip 35, so as to prevent the circuit board 33 and the laser chip 35 from being damaged due to an excessively high temperature in a working process, thereby ensuring normal working and use safety of the aerosol-generating device 100. It should be noted that, in some implementations, the heat dissipation piece 37 may be one or more of devices such as a heat dissipation block 371 and a heat dissipation fin. Certainly, in some other implementations, the heat dissipation piece 37 may alternatively be one or more of a heat dissipation fan, a heat dissipation tube, and the like.

[0055] With reference to FIG. 4 and FIG. 5, in some implementations, the heat dissipation piece 37 includes the heat dissipation block 371, the circuit board 33 is connected to the support 31 through the heat dissipation block 371, and the heat dissipation block 371 is configured to conduct heat generated by the laser chip 35 to the support 31 and the holder 10.

[0056] The heat dissipation block 371 includes a first side 3711 and a second side 3713 opposite to each other. The second side 3713 of the heat dissipation block 371 is opposite to the support 31 and can abut against the support 31. The circuit board 33 is arranged on the first side 3711 of the heat dissipation block 371. The shape and the dimension of a cross-section of the heat dissipation block 371 is basically the same as the shape and the dimension of a cross section of the second sub-holder 13, so that when the heat dissipation block 371 is mounted in the second sub-holder 13, the side wall of the heat dissipation block 371 abuts against the inner wall of the second sub-holder 13. Therefore, heat generated by the laser chip 35 can be conducted to the holder 10 and the support 31 through the heat dissipation block 371 for heat dissipation. In addition, the shape and the dimension of the cross section of the heat dissipation block 371 is basically the same as the shape and the dimension of the cross section of the second sub-holder 13, which can also enlarge a contact area between the heat dissipation block 371 and the second sub-holder 13, thereby improving a heat dissipation effect. In an embodiment, the heat dissipation block 371 and the support 31 may be connected in a detachable mounting manner such as screw connection, bolts, or snapping. In another embodiment, the heat dissipation block 371 and the support 31 may be connected in a non-detachable mounting manner such as welding, riveting, or gluing.

[0057] In some embodiments, the circuit board 33 is directly supported by the first side 3711 of the heat dissipation block 371, and the second side 3713 of the heat dissipation block 371 abuts against the holder 10, so that heat generated by the laser chip 35 is conducted to the support 31 and the holder 10 through the heat dissipation block 371. In addition, this mounting manner can also simplify assembly steps of the heating assembly 30, thereby improving assembly efficiency of the aerosol-generating device 100. In another embodiment, the heat dissipation block 371 may include an accommodating groove 37111 formed by being recessed from the first side 3711 of the heat dissipation block 371 to the second side 3713 of the heat dissipation block 371. The circuit board 33 and the laser chip 35 are arranged in the accommodating groove 37111. The arrangement of the accommodating groove 37111 can enlarge a contact area between the heat dissipation block 371 and the laser chip 35 when the side wall of the circuit board 33 and / or the laser chip 35 is in contact with the side wall of the accommodating groove 37111, to enlarge a heat dissipation area, thereby improving a heat dissipation effect of the heat dissipation block 371. The arrangement of the accommodating groove 37111 can also facilitate adjustment of a focal length of the laser chip 35, and improve heating efficiency of the corresponding substrate portion 1101 by the laser chip 35.

[0058] In some implementations, the heat dissipation piece 37 may further include a heat dissipation boss 37131 provided on the second side 3713 of the heat dissipation block 371, and the heat dissipation boss 37131 may be in contact with the support 31. The heat dissipation boss 37131 extends from the second side 3713 of the heat dissipation block 371 toward the direction away from the heat dissipation block 371, and extends through the bottom 133 of the second sub-holder 13 to be in contact with the support 31. The arrangement of the heat dissipation boss 37131 can enlarge a heat dissipation area of the heat dissipation piece 37, thereby improving a heat dissipation effect, and further ensuring normal working of the circuit board 33 and the laser chip 35.

[0059] In an embodiment, the heat dissipation boss 37131 and the support 31 may be connected in a detachable mounting manner such as screw connection, bolts, or snapping. In another embodiment, the heat dissipation boss 37131 and the support 31 may be connected in a non-detachable mounting manner such as welding, riveting, or gluing. Specifically, the heat dissipation boss 37131 may be provided with a threaded hole 37135, and the support 31 may be provided with a through hole 311 (as shown in FIG. 3). A screw extends through the through hole 311 of the support and is locked into the threaded hole 37135 of the heat dissipation boss 37131, to fixedly connect the heat dissipation block 371 to the support 31.

[0060] When the aerosol-generating device 100 works, shaking of the heat dissipation piece 37 causes a problem that the aerosol-generating device 100 generates noise or a laser direction of the laser chip 35 deviates. Therefore, the heat dissipation piece 37 is fixedly connected to the support 31, which can ensure stability of the heat dissipation piece 37, thereby avoiding generation of the noise, and ensuring heating efficiency of the laser chip 35.

[0061] Referring to FIG. 2 and FIG. 3, the driving assembly 40 includes a driving member 41 and a connecting component 43. The driving member 41 is located between the heating assembly 30 and the bottom of the holder 10. The connecting component 43 extends through the heating assembly 30.

[0062] In an implementation, an output shaft 411 of the driving member 41 may be connected to the heating assembly 30 through the connecting component 43, and the driving member 41 is configured to drive the heating assembly 30 to rotate relative to the holder 10. Specifically, the driving member 41 is accommodated in the holder 10, and is located between the heating assembly 30 and the bottom 115 of the first sub-holder 11. The heating assembly 30 heats the substrate portion 1101 currently corresponding to the heating assembly 30 when the aerosol-generating device 100 is inhaled. When the aerosol-generating device 100 is stopped from being inhaled, the output shaft 411 of the driving member 41 rotates to drive the heating assembly 30 to rotate relative to the holder 10, so as to switch the substrate portion 1101 corresponding to the heating assembly 30. In some implementations, the driving member 41 may be a motor.

[0063] In another implementation, the output shaft 411 of the driving member 41 may be connected to the bearing disk 21 of the rotating assembly 20 through the connecting component 43, and the driving member 41 is configured to drive the bearing disk 21 to rotate relative to the holder 10. Specifically, the heating assembly 30 heats the substrate portion 1101 currently corresponding to the heating assembly 30 when the aerosol-generating device 100 is inhaled. When the aerosol-generating device 100 is stopped from being inhaled, the output shaft 411 of the driving member 41 rotates, to drive the bearing disk 21 to rotate relative to the holder 10, to switch the substrate portion 1101 corresponding to the heating assembly 30. In an embodiment, when the bearing disk 21 rotates, the bin cover 23 and the bearing disk 21 rotate relative to the holder 10 together. In comparison with that the bearing disk 21 rotates alone, co-rotation of the bin cover 23 and the bearing disk 21 can prevent friction from occurring between the bin cover 23 and the bearing disk 21 when the bearing disk 21 rotates alone, which affects the sealing performance between the bin cover 23 and the bearing disk 21 in a long run. In another embodiment, when the bearing disk 21 rotates, the bin cover 23 is fixed relative to the bearing disk 21. In comparison with that the bin cover 23 and the bearing disk 21 rotate relative to the holder 10 together, power consumption required for the driving member 41 to drive the rotating assembly 20 to rotate relative to the holder 10 can be reduced, and the endurance of the aerosol-generating device 100 can be prolonged.

[0064] Still referring to FIG. 2 and FIG. 3, in some implementations, the connecting component 43 may include a connecting shaft 431, a shaft sleeve 433, and a connector 435. The connecting shaft 431 extends through the second sub-holder 13 and the heat dissipation piece 37, and one end of the connecting shaft 431 is connected to the output shaft 411 of the driving member 41. The shaft sleeve 433 extends through the bearing disk 21 and is sleeved on the other end of the connecting shaft 431. The connector 435 is fixedly connected to the shaft sleeve 433 and the other end of the connecting shaft 431.

[0065] Specifically, the connecting shaft 431 is rotatably extended through the second sub-holder 13 and the heat dissipation piece 37, and the shaft sleeve 433 extends through the bearing disk 21 and is sleeved on the other end of the connecting shaft 431. Therefore, when the output shaft 411 of the driving member 41 rotates, the connecting shaft 431 rotates to drive the shaft sleeve 433 and the bearing disk 21 to rotate relative to the holder 10 together, to switch the substrate portion 1101 corresponding to the heating assembly 30. It should be noted that, in some implementations, the connector 435 may be a connecting component such as a screw or a bolt. This is not limited herein.

[0066] In some implementations, when the output shaft 411 of the driving member 41 is connected to the heating assembly 30 through the connecting component 43, the connecting shaft 431 extends through the second sub-holder 13 and the heat dissipation piece 37, one end of the connecting shaft 431 is connected to the output shaft 411 of the driving member 41, and the shaft sleeve 433 extends through the heat dissipation piece 37 and is sleeved on the other end of the connecting shaft 431. When the output shaft 411 of the driving member 41 rotates, the connecting shaft 431 rotates to drive the shaft sleeve 433 and the heat dissipation piece 37 to rotate relative to the holder 10 together, so that the heating assembly 30 corresponds to different substrate portions 1101.

[0067] Referring to FIG. 2 and FIG. 8, in some implementations, the aerosol-generating device 100 further includes a mouthpiece 50, one end of the mouthpiece 50 extends into the rotating assembly 20, and the other end of the mouthpiece 50 is exposed from the rotating assembly 20. The aerosol-generating device 100 is provided with an air inlet passage 130, and the mouthpiece 50, the rotating assembly 20, the side wall 131 of the second sub-holder 13, and the substrate portion 1101 corresponding to the heating assembly 30 jointly form the air inlet passage 130. The air inlet passage 130 is configured to allow the aerosol to flow out of the aerosol-generating device 100.

[0068] Specifically, one end of the mouthpiece 50 extending into the rotating assembly 20 is in communication with the cavity 220 of the rotating assembly 20, so that the aerosol in the cavity 220 can be inhaled by the user. The mouthpiece 50, the rotating assembly 20, the side wall 131 of the second sub-holder 13, and the substrate portion 1101 corresponding to the heating assembly 30 jointly form the air inlet passage 130. The air inlet passage 130 can allow an external air to enter the rotating assembly 20, so that air pressure inside and outside of the rotating assembly 20 is balanced when the user inhales, thereby ensuring that the aerosol can be normally inhaled.

[0069] With reference to FIG. 6 and FIG. 7, in some implementations, the bearing disk 21 includes a bearing plate 211, a first inner tube 212, a first outer tube 213, a second inner tube 214, and a second outer tube 215. The bearing plate 211 includes a first side 2111 and a second side 2113 opposite to each other. The first inner tube 212 and the first outer tube 213 extend from the first side 2111 of the bearing plate 211 toward the direction away from the second side 2113 of the bearing plate 211. The first outer tube 213 surrounds the first inner tube 212. The second inner tube 214 and the second outer tube 215 extend from the first side 2111 of the bearing plate 211 toward the direction away from the first side 2111 of the bearing plate 211. The second outer tube 215 surrounds the second inner tube 214. The first inner tube 212 is in communication with the second inner tube 214 through a through hole 2115 extending through the bearing plate, the first inner tube 212 is in communication with a through hole 231 of the bin cover, and the first outer tube 213 is supported by the top 135 of the second sub-holder 13. The outer contour dimension of the second outer tube 215 is less than the outer contour dimension of the first outer tube 213, and the second outer tube 215 extends into the holder 10.

[0070] Specifically, the bearing plate 211 is located at the top 135 of the second sub-holder 13, the first inner tube 212 and the first outer tube 213 are located at the first side 2111 of the bearing plate 211, and the second inner tube 214 and the second outer tube 215 are located at the second side 2113 of the bearing plate 211. The aerosol-generating substrate 110 is located between the first outer tube 213 and the first inner tube 212, and jointly forms a plurality of cavities 220 with the first outer tube 213 and the first inner tube 212. The first inner tube 212 is in communication with the second inner tube 214 through the through hole 231 of the bin cover. The second inner tube 214 extends into the second sub-holder 13. The shaft sleeve 433 is at least partially mounted to the second inner tube 214 and is connected to the connecting shaft 431. The outer contour dimension of the second outer tube 215 is less than the outer contour dimension of the first outer tube 213, so that the second outer tube 215 can extend into the second sub-holder 13, thereby facilitating mounting and positioning of the bearing disk 21. It should be noted that, in some implementations, central axes of the first inner tube 212, the first outer tube 213, the second inner tube 214, and the second outer tube 215 may coincide with each other, which can ensure stability of the bearing disk 21 when the driving assembly 40 drives the bearing disk 21 to rotate, and prevent the bearing disk 21 from being deviated in a rotation process, to avoid that the heating assembly 30 cannot correspond to (be aligned with) the substrate portion 1101, thereby ensuring normal working of the aerosol-generating device 100. In some other implementations, central axes of the first inner tube 212, the first outer tube 213, the second inner tube 214, and the second outer tube 215 may not completely coincide with each other. For example, central axes of the first inner tube 212 and the second inner tube 214 do not coincide with each other, so that the first inner tube 212 or the second inner tube 214 can be prevented from interfering with another component when the aerosol-generating device 100 is assembled, which ensures normal assembly of the aerosol-generating device 100. In some implementations, outer contours of the first outer tube 213 and the second outer tube 215 may be in the shape of a circle, an ellipse, a square, or the like. This is not limited herein.

[0071] Referring to FIG. 2, FIG. 7, and FIG. 8, in some implementations, the air inlet passage 130 includes an inner cavity 51 of the mouthpiece, an inner cavity 2121 of the first inner tube, a through hole 2123 on the side wall of the first inner tube 212, the cavity 220 corresponding to the heated substrate portion 1101, a through hole 2151 extending from the outer side of the second outer tube 215 to the first side 2111 of the bearing plate 211, and an air inlet hole 1311 on the side wall 131 of the second sub-holder 13. In other words, when the user performs inhalation, the external air enters the cavity 220 corresponding to the heated substrate portion 1101 from the air inlet hole 1311 and the through hole 2151 on the side wall 131 of the second sub-holder 13, and drives the aerosol in the cavity 220 to sequentially pass through the through hole 2123 on the side wall of the first inner tube 212, the inner cavity 2121 of the first inner tube, and the inner cavity 51 of the mouthpiece and then be inhaled by the user. The through hole 2123 is provided on the side wall of the first inner tube 212 corresponding to each cavity 220, and the through hole 2151 is provided on each cavity 220. In some embodiments, the number of through holes 2123 corresponding to each cavity 220 may be one or more. The arrangement of the plurality of through holes 2123 can improve the amount of aerosols inhaled during inhalation, and ensure the inhalation experience of the user.

[0072] With reference to FIG. 6, in some implementations, the rotating assembly 20 may further include a first sealing member 27. The first sealing member 27 is sleeved on the second outer tube 215, and is located between the side wall 131 of the second sub-holder 13 and the second outer tube 215. An air guide gap 270 is provided between the first sealing member 27 and the side wall 131 of the second sub-holder 13. The first sealing member 27 is provided with a perforation 271, the perforation 271 corresponds to and is in communication with the through hole 2151, the perforation 271 is staggered with the air inlet hole 1311 in a circumferential direction of the holder 10, and the perforation 271 is in communication with the air inlet hole 1311 through the air guide gap 270. In this case, the air inlet passage 130 further includes the air guide gap 270.

[0073] Specifically, the first sealing member 27 is located between the inner side of the side wall 131 of the second sub-holder 13 and the second outer tube 215, the air guide gap 270 is provided between the first sealing member 27 and the inner side of the side wall 131 of the second sub-holder 13, and the air inlet hole 1311 is in communication with the air guide gap 270. In an embodiment, the inner side of the side wall 131 of the second sub-holder 13 is recessed in a direction away from the first sealing member 27 to form the air guide gap 270, the perforation 271 is provided at a location in which the first sealing member 27 corresponds to the air guide gap 270, and the perforation 271 is in communication with the air inlet hole 1311 through the air guide gap 270. The corresponding location is staggered with the air inlet hole 1311, that is, the corresponding location is not aligned with the air inlet hole 1311. In another embodiment, the outer side of the first sealing member 27 is recessed in a direction away from the side wall 131 of the second sub-holder 13 to form the air guide gap, the perforation 271 is further provided at a location in which the first sealing member 27 corresponds to the air guide gap, and the perforation 271 is in communication with the air inlet hole 1311 through the air guide gap. Similarly, the corresponding location is staggered with the air inlet hole 1311, that is, the corresponding location is not aligned with the air inlet hole 1311. In another embodiment, the inner side of the side wall 131 of the second sub-holder 13 is recessed in a direction away from the first sealing member 27 to form a first groove (not shown in the figure), and the outer side of the first sealing member 27 is recessed in a direction away from the side wall 131 of the second sub-holder 13 to form a second groove (not shown in the figure). The first groove and the second groove cooperate to form the air guide gap. The air inlet hole 1311 is aligned and in communication with one end of the air guide gap, and the perforation 271 is aligned and in communication with the other end of the air guide gap, so that the perforation 271 is in communication with the air inlet hole 1311 through the air guide gap 270, and the perforation 271 is staggered with the air inlet hole 1311.

[0074] The air inlet passage 130 further includes the air guide gap 270. In other words, the air inlet passage 130 includes the inner cavity 51 of the mouthpiece, the inner cavity 2121 of the first inner tube, the through hole 2123 on the side wall of the first inner tube 212, the cavity 220 corresponding to the heated substrate portion 1101, the through hole 2151 extending from the outer side of the second outer tube 215 to the first side 2111 of the bearing plate 211, the perforation 271 of the first sealing member 27, the air guide gap 270, and the air inlet hole 1311 on the side wall 131 of the second sub-holder 13. The staggered arrangement of the perforation 271 and the air inlet hole 1311 can reduce or even avoid poor appearance and feel of air leakage in the aerosol-generating device 100 caused by a reverse flow of the generated aerosol out of the air inlet hole 1311 through the air inlet passage 130 when the generated aerosol is not completely inhaled. In addition, the first sealing member 27 is configured to seal a gap between the bearing disk 21 and the side wall 131 of the second sub-holder 13, thus preventing the aerosol from leaking.

[0075] Referring to FIG. 2, FIG. 6, and FIG. 7, in some implementations, the rotating assembly 20 may further include a second sealing member 28. The second sealing member 28 is sleeved on the bin cover 23, and the second sealing member 28 is located between the bearing disk 21 and the bin cover 23 to seal a gap between the bearing disk 21 and the bin cover 23. The arrangement of the second sealing member 28 can prevent the aerosol from leaking, thereby ensuring the inhalation taste of the user. In addition, impurities such as external dust can also be prevented from entering the storage bin 210, thereby ensuring purity of the aerosol.

[0076] In some implementations, the bin cover 23 includes a bin cover plate 232, a flange portion 233, and a sleeve portion 234. The bin cover plate 232 includes a first side 2321 and a second side 2323 opposite to each other. The bin cover plate 232 extends into the first outer tube 213 of the bearing disk 21, and the second sealing member 28 is sleeved on the outer side of the bin cover plate 232 and located between the first outer tube 213 and the bin cover plate 232. The flange portion 233 is an annular structure extending outward from the first side 2321 of the bin cover plate, and the flange portion 233 is supported by the top of the first outer tube 213. The sleeve portion 234 extends through the first side 2321 of the bin cover plate and the second side 2323 of the bin cover plate, and the flange portion 233 surrounds the sleeve portion 234. The first inner tube 212 of the bearing disk 21 extends from the second side 2323 of the bin cover plate into the sleeve portion 234. One end of the mouthpiece 50 extends into the sleeve portion 234 from the first side 2321 of the bin cover plate, and the other end thereof is exposed from the sleeve portion 234, and the inner cavity of the mouthpiece 50 is in communication with the inner cavity of the first inner tube 212. The arrangement of the flange portion 233 can enable the mounting between the bin cover 23 and the bearing disk 21 to be more stable. In addition, the flange portion 233 is supported by the top of the first outer tube 213, so that sealing performance between the bearing disk 21 and the bin cover 23 can further be ensured.

[0077] In some implementations, the mouthpiece 50 and the sleeve portion 234 may be mounted in an interference fit manner, to ensure the sealing performance between the mouthpiece 50 and the bin cover 23, and to prevent the aerosol from leaking, thereby ensuring the amount of aerosols inhaled by the user, and further ensuring the inhalation taste.

[0078] In some implementations, the first inner tube 212 partially extends into the sleeve portion 234, and the first inner tube 212 and the sleeve portion 234 may be mounted in an interference fit manner, so as to ensure the sealing performance between the first inner tube 212 and the sleeve portion 234, thereby avoiding that the amount of aerosols inhaled by the user is reduced when the aerosol enters other locations in the storage bin 210 than the cavity 220 (as shown in FIG. 8), and ensuring the inhalation taste. In some other implementations, a sealing member (not shown in the figure) may be further arranged between the first inner tube 212 and the sleeve portion 234, to ensure the sealing performance between the first inner tube 212 and the sleeve portion 234.

[0079] Referring to FIG. 2 and FIG. 8, in some implementations, the aerosol-generating device 100 may further include a protective cover 60. The protective cover 60 is mounted in the bearing disk 21, and the protective cover 60 is configured to cover the connector 435, to prevent the aerosol in the air inlet passage 130 from flowing to the connector 435.

[0080] Specifically, with reference to FIG. 6, the protective cover 60 is mounted in the first inner tube 212, and is configured to cover the connector 435. Therefore, when the user performs inhalation, and in a process in which the aerosol flows out to the mouthpiece 50 through the through hole 2123 on the side wall of the first inner tube 212 and the inner cavity 2121 of the first inner tube, the protective cover 60 can isolate the connector 435 from contact with the aerosol, so as to prevent the aerosol from causing corrosion on the connector 435 and another functional component, or prevent the aerosol from condensing into charred material on the connector 435 and another functional component, thereby affecting normal working of the connector 435 and another functional component. Therefore, the arrangement of the protective cover 60 can prevent the connector 435 and another functional component from being damaged, thereby ensuring normal working of the connector 435 and another functional component (for example, the driving assembly 40), and can also facilitate cleaning because the charred material formed by the condensation of the aerosol is located on the surface of the protective cover 60.

[0081] In some implementations, the protective cover 60 is made of a material with high temperature resistance and corrosion resistance, so that an effect of protecting the connector 435 and another component by the protective cover 60 can be enhanced. In some implementations, the protective cover 60 may be made of at least one material of rigid glue, flexible glue, rigid-flex glue, metal, ceramics, or glass.

[0082] In an embodiment, the protective cover 60 is in a close fit with the first inner tube 212. In other words, the protective cover 60 may abut against the inner wall of the first inner tube 212 in an interference fit manner, thereby ensuring the sealing performance of a space jointly formed by the protective cover 60, the first inner tube 212, and another component.

[0083] In another embodiment, the protective cover 60 is connected to the inner wall of the first inner tube 212 through at least one of gluing, ultrasonic welding, or laser welding, so that the sealing performance of the protective cover 60 can further be improved, thereby improving an effect of protecting the connector 435 and another component by the protective cover 60.

[0084] In another embodiment, the protective cover 60 is connected to the top of the shaft sleeve 433 through at least one of gluing, ultrasonic welding, or laser welding. Therefore, the protective cover 60 and the shaft sleeve 433 are formed into an integral structure, which can ensure an effect of protecting the connector 435 and another component by the protective cover 60 while facilitating the mounting of the protective cover 60, thereby simplifying an assembly process, and improving assembly efficiency of the aerosol-generating device 100.

[0085] Referring to FIG. 2 and FIG. 9, in some implementations, the aerosol-generating device 100 may further include an airflow detection assembly 70. The airflow detection assembly 70 is mounted on the heating assembly 30, and the airflow detection assembly 70 is configured to detect whether the aerosol-generating device 100 is inhaled. The mouthpiece 50, the rotating assembly 20, and the airflow detection assembly 70 jointly form a detection airway 140, and the airflow detection assembly 70 determines whether the aerosol-generating device 100 is inhaled based on an air pressure in the detection airway 140.

[0086] Specifically, with reference to FIG. 8, when the user performs inhalation through the mouthpiece 50, the air pressure in the detection airway 140 gradually decreases as compared with the external air pressure to form a negative pressure. The airflow detection assembly 70 detects a change of the air pressure in the detection airway 140, to determine that the aerosol-generating device 100 is in an inhaled state. A control assembly 90 of the aerosol-generating device 100 controls the heating assembly 30 to heat the corresponding substrate portion 1101 to generate the aerosol, and the generated aerosol is inhaled by the user through the air inlet passage 130. When the user stops inhalation, the external air enters the detection airway 140 through the air inlet passage 130, so that the air pressure in the detection airway 140 is the same as the external air pressure. The airflow detection assembly 70 detects that the air pressure in the detection airway 140 changes and returns to a positive pressure, it can be determined that the aerosol-generating device 100 is in a non-inhaled state, and the control assembly 90 controls the heating assembly 30 to stop heating the corresponding substrate portion 1101. In addition, the control assembly 90 controls the driving assembly 40 to drive the rotating assembly 20 and / or the heating assembly 30 to rotate, to switch the substrate portion 1101 corresponding to the heating assembly 30. Therefore, the aerosol-generating device 100 can achieve on-demand activation / deactivation upon inhalation, thereby improving user experience.

[0087] Referring to FIG. 4, FIG. 5, FIG. 10, and FIG. 11, in some implementations, the airflow detection assembly 70 may include a support base 71, an airflow-sensor cover 73, and an airflow-sensor 75. The airflow detection assembly 70 is further provided with an airflow-sensor channel 710. The support base 71 is mounted on the first side 3711 of the heat dissipation block 371. The support base 71 includes a first side 713 and a second side 715 opposite to each other, the support base 71 is provided with a first channel 711 extending through the first side 713 of the support base and the second side 715 of the support base, and one end of the first channel 711 is an annular opening 7111. The airflow-sensor cover 73 is connected to the other end of the first channel 711. The airflow-sensor cover 73 is arranged inside the heat dissipation block 371, the airflow-sensor cover 73 is provided with a second channel 731 extending therethrough, the second channel 731 is in communication with the first channel 711, the airflow-sensor channel 710 includes the first channel 711 and the second channel 731, and the airflow-sensor 75 is mounted at one end of the airflow-sensor cover 73 away from the support base 71 and corresponds to the second channel 731.

[0088] Specifically, the annular opening 7111 is at least partially in communication with one end of the first channel 711. The airflow-sensor cover 73 is arranged in the heat dissipation block 371, one end of the airflow-sensor cover 73 located on the first side 3711 of the heat dissipation block 371 is in communication with the first channel 711, and one end of the airflow-sensor cover 73 located on the second side 3713 of the heat dissipation block 371 is connected to the airflow-sensor 75. The airflow-sensor cover 73 is provided with the second channel 731 extending therethrough. One side of the airflow-sensor 75 abuts against one end of the second channel 731 away from the support base 71, and the other side of the airflow-sensor 75 faces the bottom 115 of the first sub-holder 11. When the air in the airflow-sensor channel 710 flows out toward the rotating assembly 20 through the annular opening 7111 at one end of the first channel 711, the air pressure in the airflow-sensor channel 710 changes. In this case, air pressures on opposite sides of the airflow-sensor 75 are different, so that the airflow-sensor 75 can send a signal to the control assembly 90 (as shown in FIG. 3), to enable the control assembly 90 to control the heating assembly 30 to work. In some implementations, the airflow-sensor 75 may be an air pressure sensor, or the like.

[0089] In some implementations, the airflow-sensor 75 includes a terminal portion 751 and a main body portion 753 connected to each other. The airflow detection assembly 70 further includes a sealing gasket 77. The sealing gasket 77 is arranged between the airflow-sensor 75 and the airflow-sensor cover 73. The sealing gasket 77 surrounds the second channel 731 to seal one end of the airflow-sensor channel 710. Specifically, the sealing gasket 77 is arranged between the main body portion 753 of the airflow-sensor 75 and the airflow-sensor cover 73, to seal a joint between the airflow-sensor 75 and the airflow-sensor cover 73, thereby avoiding that the airflow-sensor 75 cannot accurately detect an air pressure in the airflow-sensor channel 710 due to leakage of air in the airflow-sensor channel 710, and ensuring normal working of the aerosol-generating device 100 (as shown in FIG. 1).

[0090] In some implementations, the second side 3713 of the heat dissipation block 371 is recessed toward the first side 3711 of the heat dissipation block 371 to form a groove 37133, and one end of the airflow-sensor cover 73 away from the support base 71 and the main body portion 753 of the airflow-sensor 75 are accommodated in the groove 37133. In an embodiment, the dimension and the shape of the groove 37133 match the dimension and the shape of the main body portion 753, that is, the main body portion 753 of the airflow-sensor 75 can be exactly accommodated in the groove 37133, and abut against one end of the second channel 731 of the airflow-sensor cover 73, so that sealing effects between the airflow-sensor 75 and the airflow-sensor cover 73 and between the airflow-sensor 75 and the holder 10 can be further improved, and accuracy of detecting the air pressure in the airflow-sensor channel 710 by the airflow-sensor 75 is ensured, and an area of a space occupied by the airflow detection assembly 70 can be reduced, thereby achieving miniaturization of the aerosol-generating device 100.

[0091] With reference to FIG. 2, in some implementations, the bottom 133 of the second sub-holder 13 is further provided with an avoidance hole 1331, and the terminal portion 751 of the airflow-sensor 75 is at least partially located in the avoidance hole 1331.

[0092] Referring to FIG. 2, FIG. 6, FIG. 7, FIG. 9, and FIG. 11, in some implementations, the rotating assembly 20 may further include a sealing ring 29 fixedly connected to the bearing disk 21. The mouthpiece 50 is in communication with the first inner tube 212. The bearing disk 21 is further provided with an air guide hole 216, and the air guide hole 216 extends from the side wall of the first inner tube 212 to a limiting block 218 and reaches the second side 2113 of the bearing plate 211. The sealing ring 29 is provided with a through vent hole 291, and the vent hole 291 is in communication with the air guide hole 216 correspondingly. The airflow-sensor channel 710 includes a first end 7101 and a second end 7103. The first end 7101 of the airflow-sensor channel 710 is an annular opening 7111, the annular opening 7111 is always in communication with the vent hole 291, and the airflow-sensor 75 is arranged at the second end 7103 of the airflow-sensor channel 710. The detection airway 140 includes the airflow-sensor channel 710, the vent hole 291, the air guide hole 216, an inner cavity 2121 of the first inner tube, and an inner cavity 51 of the mouthpiece.

[0093] The sealing ring 29 is arranged on the second side 213 of the bearing plate, and is sleeved on the second inner tube 214. When the driving assembly 40 drives the bearing disk 21 to rotate relative to the holder 10, the sealing ring 29 rotates together with the bearing disk 21. In addition, in a process in which the bearing disk 21 and the sealing ring 29 rotate together, the vent hole 291 is always in communication with the air guide hole 216, and the annular opening 7111 is always in communication with the vent hole 291, so that air in the airflow-sensor channel 710 can sequentially flow out through the annular opening 7111, the vent hole 291, the air guide hole 216, the inner cavity 2121 of the first inner tube, and the inner cavity 51 of the mouthpiece to the outside of the aerosol-generating device 100 when the user performs inhalation through the mouthpiece 50. That is, the airflow-sensor channel 710, the vent hole 291, the air guide hole 216, the inner cavity 2121 of the first inner tube, and the inner cavity 51 of the mouthpiece jointly form the detection airway 140. Therefore, the air pressure in the airflow-sensor channel 710 changes, to facilitate detection of the airflow-sensor 75.

[0094] In some implementations, the side of the sealing ring 29 that faces away from the bearing disk 21 is provided with an annular air groove 293, the annular air groove 293 is in communication with the annular opening 7111 correspondingly, and the annular opening 7111 is always in communication with the vent hole 291 through the annular air groove 293. One end of the vent hole 291 is in communication with the air guide hole 216, and the other end of the vent hole 291 is in communication with the annular air groove 293. The arrangement of the annular air groove 293 can enable the sealing ring 29 to fit the annular opening 7111 more tightly when the sealing ring 29 rotates relative to the holder 10, thereby improving a sealing effect of the detection airway 140 and ensuring accuracy of detecting the air pressure by the airflow-sensor 75.

[0095] Referring to FIG. 2, FIG. 12, and FIG. 13, in some implementations, the aerosol-generating device 100 may further include a decorative assembly 80. The decorative assembly 80 is mounted on the rotating assembly 20, the decorative assembly 80 and the heating assembly 30 are respectively located on opposite sides of the rotating assembly 20, and the decorative assembly 80 is configured to rotate relative to the holder 10 under driving of an external force.

[0096] The decorative assembly 80 is mounted on the first side 2111 of the bearing plate 211, the heating assembly 30 is mounted on the second side 2113 of the bearing plate 211, and the decorative assembly 80 can rotate relative to the holder 10 under driving of the external force. In an example, the decorative assembly 80 may be driven by a device such as an electric motor or a motor. In another example, the decorative assembly 80 may be driven by a user applying a driving force to the decorative assembly 80.

[0097] In an implementation, the decorative assembly 80 includes a decorative member 81. The decorative member 81 is fixedly connected to the sleeve portion 234. When the driving assembly 40 drives the rotating assembly 20 to rotate relative to the holder 10, the decorative member 81 and the rotating assembly 20 synchronously rotate relative to the holder 10 together. Specifically, the decorative member 81 is located on the first side 2111 of the bearing plate 211 and is fixedly sleeved on the sleeve portion 234, so that when the driving assembly 40 drives the rotating assembly 20 to rotate relative to the holder 10, the decorative member 81 and the rotating assembly 20 synchronously rotate relative to the holder 10 together. That is, when the user does not perform inhalation, the decorative member 81 can rotate relative to the holder 10, thereby making use of the aerosol-generating device 100 more interesting.

[0098] In some implementations, the decorative assembly 80 includes a decorative member 81 and a bearing 83. The decorative member 81 is sleeved and mounted on the sleeve portion 234 through the bearing 83. The decorative member 81 is fixedly in a close fit with an outer ring of the bearing 83, and the sleeve portion 234 is fixedly in a close fit with an inner ring of the bearing 83.

[0099] Specifically, the decorative member 81 is located on the first side 2111 of the bearing plate 211, and is rotatably sleeved and mounted on the sleeve portion 234 of the bin cover 23 through the shaft sleeve 433. The decorative member 81 is fixedly in a close fit with the outer ring of the bearing 83, and the sleeve portion 234 is fixedly in a close fit with the inner ring of the bearing 83, so that the decorative member 81 can rotate relative to the sleeve portion 234 when the decorative assembly 80 is driven by the external force.

[0100] In some implementations, the single-side interference between the decorative member 81 and the bearing 83 is [0.01 mm, 0.20 mm]. The amount of interference is a relationship between tolerance zones of a hole and an axis that fit each other and that have identical basic dimensions. The magnitude of the interference determines the tightness of the fit. When the dimension of the outer diameter of the bearing 83 is greater than the dimension of the inner diameter of the decorative assembly 81, a difference between maximum limit dimensions of the bearing 83 and the decorative member 81 is maximum interference, and otherwise, is minimum interference.

[0101] The single-side interference between the decorative member 81 and the bearing 83 may be any one of 0.01 mm, 0.04 mm, 0.06 mm, 0.08 mm, 0.10 mm, 0.13 mm, 0.15 mm, 0.17 mm, 0.19 mm, or 0.20 mm or any value between any two thereof. When the single-side interference between the decorative member 81 and the bearing 83 is less than 0.01 mm, a combination between the decorative member 81 and the bearing 83 is not tight enough, and slippage may occur between the decorative member 81 and the bearing 83, or the bearing 83 may fall off the decorative member 81. When the single-side interference between the decorative member 81 and the bearing 83 is greater than 0.20 mm, the decorative member 81 and the bearing 83 may be difficult to be mounted to each other or even cannot be mounted to each other. Therefore, when the single-side interference between the decorative member 81 and the bearing 83 is [0.01 mm, 0.20 mm], it can be ensured that the decorative member 81 can be normally mounted on the sleeve portion 234, the decorative member 81 normally rotates relative to the sleeve portion 234, and it can be prevented the decorative member 81 from falling off in a rotation process, so that an entire structure is more stable. In addition, in some implementations, the single-side interference between the sleeve portion 234 and the bearing 83 is [0.01 mm, 0.20 mm], an effect is the same as that described above, and details are not described herein again.

[0102] In some implementations, the decorative member is provided with a sound maker cavity 810. The decorative assembly 80 further includes a sound maker 85. The sound maker 85 is accommodated in the sound maker cavity 810. When the decorative member 81 rotates relative to the holder 10, the sound maker 85 is configured to collide with the cavity wall of the sound maker cavity 810 to make a sound.

[0103] Referring to FIG. 1 and FIG. 3, in some implementations, the aerosol-generating device 100 may further include a control assembly 90. The control assembly 90 includes a main board 91, a power supply 93, and a button 95. Both the main board 91 and the power supply 93 are arranged in the first sub-holder 11, and are located on the side of the support 31 that faces away from the heat dissipation piece 37. The power supply 93 can supply power to the main board 91 and another functional component. The main board 91 is configured to control operations of components such as the heating assembly 30 and the driving assembly 40. The button 95 is arranged on the side wall 111 of the first sub-holder, and is electrically connected to the main board 91. The button 95 is connected to turn on and turn off the aerosol-generating device 100.

[0104] Specifically, the user presses the button 95 to turn on the aerosol-generating device 100. When the user starts inhalation, the airflow detection assembly 70 detects a change of the air pressure in the detection airway 140 and outputs a signal to the main board 91. The main board 91 controls the heating assembly 30 to heat the corresponding substrate portion 1101 to generate the aerosol. When the user stops inhalation, the airflow detection assembly 70 detects a change of the air pressure in the detection airway 140 and outputs a signal to the main board 91. The main board 91 controls the heating assembly 30 to stop heating, and the main board 91 controls the driving assembly 40 to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so that the heating assembly 30 corresponds to different substrate portions 1101. The foregoing steps are repeated until the user presses the button 95 again to turn off the aerosol-generating device 100.

[0105] Referring to FIG. 2 and FIG. 14, an implementation of this application further provides a control method of an aerosol-generating device 100. The aerosol-generating device 100 includes a holder 10 and a rotating assembly 20, a heating assembly 30, and a driving assembly 40 that are mounted on the holder 10. The control method includes: 01: When it is detected that the aerosol-generating device 100 is inhaled, the heating assembly 30 heats a substrate portion 1101 currently corresponding to the heating assembly 30. 03: When it is detected that the aerosol-generating device 100 is stopped from being inhaled, the heating assembly 30 stops heating the substrate portion 1101 currently corresponding to the heating assembly 30. 05: The driving assembly 40 drives the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch a substrate portion 1101 corresponding to the heating assembly 30.

[0106] The control method in the implementation of this application may be implemented by the aerosol-generating device 100 in the implementation of this application. Specifically, the heating assembly 30 may be configured to implement the methods in 01 and 03, and the driving assembly 40 is configured to implement the method in 05. In other words, a heating device may be used, so that the heating assembly 30 heats the substrate portion 1101 currently corresponding to the heating assembly 30. The heating device may be further used, when it is detected that the aerosol-generating device 100 is inhaled, the heating assembly 30 stops heating the substrate portion 1101 currently corresponding to the heating assembly 30. The driving assembly 40 may be configured to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch the substrate portion 1101 corresponding to the heating assembly 30. A specific structure of the aerosol-generating device 100 has been described in detail in the foregoing embodiment, and details are not detailed herein again.

[0107] According to the control method of an aerosol-generating device 100 in this implementation of this application, the driving assembly 40 is used to drive the rotating assembly 20 and / or the heating assembly 30 to rotate relative to the holder 10, so as to switch at least one substrate portion 1101 of the aerosol-generating substrate 110 corresponding to the heating assembly 30. In comparison with that the heating assembly 30 heats the fixed region of the aerosol-generating substrate 110, the arrangement of the rotating assembly 20 can avoid that the heating assembly 30 repeatedly heats the fixed region, resulting in miscellaneous gas to be generated by the aerosol-generating substrate 110 in the fixed region, thereby ensuring the inhalation taste of the user.

[0108] The technical features in the foregoing embodiments may be randomly combined. For concise description, not all possible combinations of the technical features in the embodiments are described. However, provided that combinations of the technical features do not conflict with each other, the combinations of the technical features are considered as falling within the scope recorded in this specification. Meanwhile, another implementation may be derived from the foregoing embodiments, so that structural and logical replacements and changes may be made without departing from the scope of the present disclosure.

[0109] The foregoing embodiments only describe several implementations of this application, which are described specifically and in detail, but cannot be construed as a limitation to the patent scope of this application. A person of ordinary skill in the art may make various changes and improvements without departing from the ideas of this application, which shall all fall within the protection scope of this application. Therefore, the protection scope of this patent application is subject to the protection scope of the appended claims.

Claims

1. An aerosol-generating device, comprising a holder and a rotating assembly, a heating assembly, and a driving assembly that are mounted on the holder; wherein the rotating assembly is configured to drive an aerosol-generating substrate to rotate, and the aerosol-generating substrate comprises a plurality of substrate portions; wherein the heating assembly corresponds to at least one substrate portion, and the heating assembly is configured to heat the corresponding substrate portion to generate an aerosol; wherein the driving assembly is configured to drive the rotating assembly and / or the heating assembly to rotate relative to the holder, so as to switch the at least one substrate portion corresponding to the heating assembly.

2. The aerosol-generating device of claim 1, wherein the heating assembly is configured to emit a laser toward the corresponding substrate portion, and the laser is configured to heat the substrate portion corresponding to the heating assembly.

3. The aerosol-generating device of claim 1, wherein the aerosol-generating substrate is in a shape of a sheet, the aerosol-generating substrate is accommodated in the rotating assembly, and an exit direction of the laser emitted by the heating assembly is substantially consistent with a direction of a rotation axis of the rotating assembly; or wherein the aerosol-generating substrate is in a shape of a column, the aerosol-generating substrate extends through the rotating assembly, and an exit direction of the laser is substantially perpendicular to a direction of a rotation axis of the rotating assembly.

4. The aerosol-generating device of claim 1, wherein the rotating assembly comprises: a bearing disk mounted on a top of the holder; and a bin cover mounted on a top of the bearing disk and jointly forming a storage bin with the bearing disk, wherein the storage bin is configured to accommodate the aerosol-generating substrate, and a region of the bearing disk corresponding to the substrate portion is a light-transmitting region for a laser emitted by the heating assembly to pass through.

5. The aerosol-generating device of claim 4, wherein the rotating assembly further comprises: a bearing frame accommodated in the storage bin and fixed between the bearing disk and the bin cover, wherein the bearing frame is configured to carry the aerosol-generating substrate, so as to space apart the aerosol-generating substrate from a bottom of the bearing disk, and a region of the bearing frame corresponding to the substrate portion is the light-transmitting region for the laser to pass through.

6. The aerosol-generating device of claim 5, wherein the bearing frame is provided with a plurality of bearing regions, each bearing region corresponds to one substrate portion, one cavity is formed between each substrate portion and the bearing disk, and the cavity is configured to accommodate the aerosol generated by the substrate portion.

7. The aerosol-generating device of claim 6, further comprising a mouthpiece, wherein one end of the mouthpiece extends into the rotating assembly, and the other end of the mouthpiece is exposed from the rotating assembly; and the aerosol-generating device is provided with an air inlet passage, and the mouthpiece, the rotating assembly, a side wall of a top of the holder, and the substrate portion corresponding to the heating assembly jointly form the air inlet passage.

8. The aerosol-generating device of claim 7, wherein the bearing disk comprises a bearing plate, a first inner tube, a first outer tube, a second inner tube, and a second outer tube, the bearing plate comprises a first side and a second side opposite to each other, the first inner tube and the first outer tube extend from the first side of the bearing plate toward a direction away from the second side of the bearing plate, the first outer tube surrounds the first inner tube, the second inner tube and the second outer tube extend from the first side of the bearing plate toward a direction away from the first side of the bearing plate, the second outer tube surrounds the second inner tube, the first inner tube is in communication with the second inner tube through a through hole extending through the bearing plate, the first inner tube is in communication with a through hole of the bin cover, the first outer tube is supported by the top of the holder, an outer contour dimension of the second outer tube is less than an outer contour dimension of the first outer tube, and the second outer tube extends into the holder; and the air inlet passage comprises an inner cavity of the mouthpiece, an inner cavity of the first inner tube, a through hole on a side wall of the first inner tube, the cavity corresponding to the heated substrate portion, a through hole extending from an outer side of the second outer tube to the first side of the bearing plate, and an air inlet hole on a side wall of the holder.

9. The aerosol-generating device of claim 8, wherein the rotating assembly further comprises: a first sealing member sleeved on the second outer tube and located between the side wall of the holder and the second outer tube, wherein an air guide gap is provided between the first sealing member and the side wall of the holder, the first sealing member is provided with a perforation, the perforation corresponds to and is in communication with the through hole, the perforation is staggered with the air inlet hole in a circumferential direction of the holder, and the perforation is in communication with the air inlet hole through the air guide gap; and the air inlet passage further comprises the air guide gap.

10. The aerosol-generating device of claim 4, wherein the rotating assembly further comprises: a second sealing member sleeved on the bin cover, wherein the second sealing member is located between the bearing disk and the bin cover and configured to seal a gap between the bearing disk and the bin cover.

11. The aerosol-generating device of claim 10, further comprising a mouthpiece; wherein the bin cover comprises: a bin cover plate comprising a first side and a second side opposite to each other, wherein the bin cover plate extends into a first outer tube of the bearing disk, and the second sealing member is sleeved on an outer side of the bin cover and located between the first outer tube and the bin cover plate; an annular flange portion extending outward from a first side of a periphery of the bin cover plate, wherein the flange portion is supported by a top of the first outer tube; and a sleeve portion extending through the first side of the bin cover plate and the second side of the bin cover plate, wherein the flange portion surrounds the sleeve portion, a first inner tube of the bearing disk extends into the sleeve portion from the second side of the bin cover plate, one end of the mouthpiece extends into the sleeve portion from the first side of the bin cover plate, and the other end thereof is exposed from the sleeve portion, and an inner cavity of the mouthpiece is in communication with an inner cavity of the first inner tube.

12. The aerosol-generating device of claim 1, wherein the rotating assembly is arranged at a top of the holder, the heating assembly is located between the rotating assembly and a bottom of the holder; and the heating assembly comprises: a support accommodated in the holder; a circuit board connected to the support; and a laser chip mounted on the circuit board, wherein the laser chip is configured to emit a laser.

13. The aerosol-generating device of claim 12, wherein the heating assembly further comprises a heat dissipation piece mounted in the holder; and the heat dissipation piece is configured to dissipate heat for the circuit board and the laser chip.

14. The aerosol-generating device of claim 13, wherein the heat dissipation piece comprises a heat dissipation block, the circuit board is connected to the support through the heat dissipation block, and the heat dissipation block is configured to conduct heat generated by the laser chip to the support and the holder.

15. The aerosol-generating device of claim 1, wherein the rotating assembly is arranged at a top of the holder, the heating assembly is located between the rotating assembly and the bottom of the holder; and the driving assembly comprises: a driving member located between the heating assembly and a bottom of the holder; and a connecting component extending through the heating assembly, wherein an output shaft of the driving member is connected to the heating assembly through the connecting component, and the driving member is configured to drive the heating assembly to rotate relative to the holder.

16. The aerosol-generating device of claim 1, wherein the rotating assembly is arranged at a top of the holder, the heating assembly is located between the rotating assembly and a bottom of the holder; and the driving assembly comprises: a driving member located between the heating assembly and the bottom of the holder; and a connecting component extending through the heating assembly, wherein an output shaft of the driving member is connected to a bearing disk of the rotating assembly through the connecting component, and the driving member is configured to drive the bearing disk to rotate relative to the holder.

17. The aerosol-generating device of claim 16, wherein the holder comprises a first sub-holder and a second sub-holder mounted on a top of the first sub-holder, a support of the heating assembly is fixedly connected to a heat dissipation piece of the heating assembly, the support and the heat dissipation piece jointly clamp the second sub-holder; and the connecting component comprises: a connecting shaft extending through the second sub-holder and the heat dissipation piece, wherein one end of the connecting shaft is connected to the output shaft of the driving member; a shaft sleeve extending through the bearing disk and sleeved on the other end of the connecting shaft; and a connector fixedly connected to the shaft sleeve and the other end of the connecting shaft.

18. The aerosol-generating device of claim 16, wherein when the aerosol-generating device is inhaled, the heating assembly heats the at least one substrate portion currently corresponding to the heating assembly; and when the aerosol-generating device is stopped from being inhaled, the heating assembly stops heating the substrate portion currently corresponding to the heating assembly, and the driving assembly drives the rotating assembly and / or the heating assembly to rotate relative to the holder, so as to switch the at least one substrate portion corresponding to the heating assembly.

19. The aerosol-generating device of claim 1, further comprising: an airflow detection assembly mounted on the heating assembly, wherein the airflow detection assembly is configured to detect whether the aerosol-generating device is inhaled.

20. The aerosol-generating device of claim 19, wherein the aerosol-generating device further comprises a mouthpiece extending through the rotating assembly; the mouthpiece, the rotating assembly, and the airflow detection assembly jointly form a detection airway, and the airflow detection assembly determines whether the aerosol-generating device is inhaled based on an air pressure in the detection airway.

21. The aerosol-generating device of claim 20, wherein the rotating assembly comprises a bearing disk and a sealing ring fixedly connected to the bearing disk, the bearing disk comprises a bearing plate and a first inner tube extending from a first side of the bearing plate, the mouthpiece is in communication with the first inner tube, the bearing disk is provided with an air guide hole, the air guide hole extends from a side wall of the first inner tube to a limiting block and reaches a second side of the bearing plate, the sealing ring is provided with a through vent hole, and the vent hole is in communication with the air guide hole correspondingly; the airflow detection assembly comprises an airflow-sensor and is provided with an airflow-sensor channel, a first end of the airflow-sensor channel is an annular opening, the annular opening is always in communication with the vent hole, the airflow-sensor is arranged at a second end of the airflow-sensor channel; and the detection airway comprises the airflow-sensor channel, the vent hole, the air guide hole, an inner cavity of the first inner tube, and an inner cavity of the mouthpiece.

22. The aerosol-generating device of claim 21, wherein a side of the sealing ring that faces away from the bearing disk is provided with an annular air groove, the annular air groove is in communication with the annular opening correspondingly, and the annular opening is always in communication with the vent hole through the annular air groove.

23. The aerosol-generating device of claim 21, wherein the heating assembly comprises a heat dissipation block; and the airflow detection assembly further comprises: a support base mounted on a first side of the heat dissipation block, wherein the support base comprises a first side and a second side opposite to each other, the support base is provided with a first channel extending through the first side and the second side of the support base, and one end of the first channel is the annular opening; and an airflow-sensor cover connected to the other end of the first channel, wherein the airflow-sensor cover is arranged inside the heat dissipation block, the airflow-sensor cover is provided with a second channel extending therethrough, the second channel is in communication with the first channel, the airflow-sensor channel comprises the first channel and the second channel, and the airflow-sensor is mounted at one end of the airflow-sensor cover away from the support base and corresponds to the second channel.

24. The aerosol-generating device of claim 23, wherein the airflow detection assembly further comprises: a sealing gasket arranged between the airflow-sensor and the airflow-sensor cover, wherein the sealing gasket surrounds the second channel and is configured to seal the detection airway.

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