Aerosol-generating device

Abstract

The utility model relates to an aerosol generating device, comprising: a main body comprising a first matching part, a second matching part and an atomizing core; the first module is internally provided with a first cavity, the first module further comprises a first limiting part and a second limiting part, the first module can be connected with the main body in the first direction and is positioned at a first holding position or a second holding position, and the first module can be operated to reversibly move between the first holding position and the second holding position; when the first module is located at the first holding position, the fluid channel between the atomizing core and the first cavity is disconnected, and the second matching part prevents the first module from moving in the first direction; when the first module is located at the second holding position, the fluid channel between the atomizing core and the first cavity is communicated, the second matching part prevents the first module from moving in the second direction, and the second direction is opposite to the first direction; the first matching part is used for preventing the first module from separating from the first holding position in the second direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device. BACKGROUND

[0002] An aerosol generating device is a device capable of atomizing a liquid preparation to form an aerosol. In some exemplary prior art, there is an aerosol generating device comprising a main body and a liquid storage compartment having a first chamber storing a liquid substrate, the main body comprising a second chamber for storing the liquid substrate and an atomizer for atomizing the liquid substrate to generate an aerosol. Before the aerosol generating device is used for the first time, the liquid storage compartment is connected to the main body at a first position, so that the liquid storage compartment remains in a sealed state, and thus the liquid substrate in the first chamber cannot be conducted to the second chamber. After the user operates the liquid storage compartment so that the liquid storage compartment is irreversibly moved from the first position to a second position, a fluid passage is formed between the first chamber and the second chamber.

[0003] However, from the time the aerosol generating device is used for the first time, the first chamber and the second chamber are always in fluid communication, which can easily cause the liquid substrate in the second chamber to be over-saturated, resulting in a greater risk of oil leakage from the main body. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide an aerosol generating device capable of preventing liquid substrate leakage.

[0005] At least one embodiment of the present application provides an aerosol generating device, comprising:

[0006] a main body comprising a first cooperating part, a second cooperating part, and an atomizer for atomizing a liquid substrate to generate an aerosol; and

[0007] a first module having a first chamber for storing the liquid substrate inside, the first module further comprising a first limiting part and a second limiting part, the first module being configured to be connectable to the main body and positionable at a first holding position or a second holding position in a first direction, and the first module being operable to reversibly move between the first holding position and the second holding position;

[0008] when the first module is located at the first holding position, the fluid passage between the atomization core and the first chamber is disconnected, and the second matching part is located at a side of the second limiting part facing a first direction to hinder movement of the first module in the first direction; when the first module is located at the second holding position, the fluid passage between the atomization core and the first chamber is connected, and the second matching part is located at a side of the second limiting part facing a second direction to hinder movement of the first module in the second direction, the second direction being opposite to the first direction;

[0009] The first matching part is configured to be always located at a side of the first limiting part facing the second direction to prevent the first module from moving away from the first holding position in the second direction.

[0010] As an example, during at least part of the movement of the first module from the first holding position to the second holding position, and / or during at least part of the movement of the first module from the second holding position to the first holding position, the second matching part interferes with the second limiting part in a third direction, the third direction being substantially perpendicular to the first direction.

[0011] As an example, when the first module is located at the first holding position, the first matching part and the second matching part are located between the first limiting part and the second limiting part, and the first matching part interferes with the first limiting part, and the second matching part interferes with the second limiting part.

[0012] As an example, when the first module is located at the second holding position, the second limiting part is located between the first matching part and the second matching part, and opposite sides of the second limiting part respectively interfere with the first matching part and the second matching part.

[0013] As an example, the first module further comprises a third limiting part, the third limiting part being configured to be always located in the second direction of the second matching part during reversible movement of the first module between the first holding position and the second holding position.

[0014] When the first module is located at the second holding position, the second matching part is located between the second limiting part and the third limiting part, and opposite sides of the second matching part respectively interfere with the second limiting part and the third limiting part.

[0015] As an example, when the first module is located at the first holding position, the first limiting portion and the second limiting portion are located between the first cooperating portion and the second cooperating portion, and the first cooperating portion interferingly cooperates with the first limiting portion, and the second cooperating portion interferingly cooperates with the second limiting portion.

[0016] As an example, when the first module is located at the second holding position, the second cooperating portion is located between the first limiting portion and the second limiting portion, and opposite sides of the second cooperating portion respectively interferingly cooperate with the first limiting portion and the second limiting portion.

[0017] As an example, a surface of the first limiting portion facing the first cooperating portion comprises a plane substantially perpendicular to the first direction; and / or

[0018] a surface of the first cooperating portion facing the first limiting portion comprises a plane substantially perpendicular to the first direction.

[0019] As an example, a surface of the second cooperating portion facing the first direction comprises a first cooperating inclined surface, and the second limiting portion is configured to slide along the first cooperating inclined surface in at least part of a stroke of the first module moving from the second holding position to the second direction; and / or

[0020] a surface of the second limiting portion facing the second direction comprises a first limiting inclined surface, and the second cooperating portion is configured to slide along the first limiting inclined surface in at least part of a stroke of the first module moving from the second holding position to the second direction.

[0021] As an example, a surface of the second cooperating portion facing the second direction comprises a second cooperating inclined surface, and the second limiting portion is configured to slide along the second cooperating inclined surface in at least part of a stroke of the first module moving from the first holding position to the first direction; and / or

[0022] a surface of the second limiting portion facing the first direction comprises a second limiting inclined surface, and the second cooperating portion is configured to slide along the second limiting inclined surface in at least part of a stroke of the first module moving from the first holding position to the first direction.

[0023] As an example, a moving distance L1 of the first module between the first holding position and the second holding position satisfies: 0.5mm≤L1≤5mm; or

[0024] The first matching part is configured to move between the first limiting part and the second limiting part during reversible movement of the first module between the first holding position and the second holding position, and the distance L2 between the first limiting part and the second limiting part satisfies: 0.5mm≤L2≤5mm; or

[0025] The first limiting part is configured to move between the first matching part and the second matching part during reversible movement of the first module between the first holding position and the second holding position, and the distance L3 between the first matching part and the second matching part satisfies: 0.5mm≤L3≤5mm.

[0026] As an example, the main body comprises:

[0027] The second module comprises the atomizing core and a second cavity for storing liquid substrate, the second cavity is in fluid communication with the atomizing core, and a fluid channel for supplementing liquid substrate from the first cavity to the second cavity is open when the first module is in the second holding position; and

[0028] The third module comprises a power supply, and the power supply is used to establish a power supply path between the atomizing core when the third module is in a connected state with the second module.

[0029] As an example, the second module comprises the first matching part, so that the first module is non-removably connected on the second module.

[0030] As an example, the second module is removably connected on the third module, and the first module is configured to be provided to the user for operation to establish connection with the second module and to be able to drive the second module to be removed from the third module.

[0031] As an example, the third module comprises the first matching part, so that the first module is non-removably connected on the third module.

[0032] The aerosol-generating device provided by the above embodiments includes a main body, an atomization core for atomizing a liquid substrate to generate an aerosol, and a first module having a first cavity for storing the liquid substrate inside. The first module is configured to be connectable to the main body along a first direction and reversibly movable between a first holding position and a second holding position. When the first module is located at the first holding position, a second cooperation part on the main body is located at a side of a second limiting part on the first module facing the first direction, so that the second cooperation part can hinder the movement of the first module to the second holding position, and the first module can be more stably kept at the first holding position. When the first module is located at the second holding position, the second cooperation part is located at a side of the second limiting part facing the second direction, so that the second cooperation part can hinder the movement of the first module to the first holding position, and the first module can be more stably kept at the second holding position. When the first module is located at the first holding position, the fluid channel between the atomization core and the first cavity is disconnected, so that the first module can be prevented from providing the liquid substrate to the main body, and the over-saturation of the liquid substrate in the main body can be prevented. When the first module is located at the second holding position, the fluid channel between the atomization core and the first cavity is connected, so that the first module can supplement the liquid substrate to the main body, and the atomization core can work normally. Meanwhile, the first cooperation part on the main body is arranged to always be kept at a side of the first limiting part facing the second direction, so that the liquid substrate in the first cavity can be prevented from leaking after the first module moves along the second direction beyond the first holding position. Therefore, the first module can be reversibly moved between the first holding position and the second holding position, and can be stably kept at one of the first holding position and the second holding position. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0034] Figure 1 is a cross-sectional view of the aerosol-generating device when the first module is located at the first holding position according to some embodiments of the present application;

[0035] Figure 2 is another cross-sectional view of the aerosol-generating device from another perspective when the first module is located at the first holding position according to some embodiments of the present application;

[0036] Figure 3 is a cross-sectional view of the aerosol-generating device when the first module is located at the second holding position according to some embodiments of the present application;

[0037] Figure 4is another perspective view of the aerosol-generating device when the first module is located at the second holding position according to some embodiments of the present application;

[0038] Figure 5 is an exploded schematic view of the aerosol-generating device according to some embodiments of the present application;

[0039] Figure 6 is another perspective view of the aerosol-generating device according to some embodiments of the present application;

[0040] Figure 7 is an exploded schematic view of the aerosol-generating device according to some other embodiments of the present application;

[0041] Figure 8 is Figure 7 is a partial cross-sectional view when the first module is located at the first holding position in the first module;

[0042] Figure 9 is a schematic view of the flexible plug according to some embodiments of the present application;

[0043] in the figure:

[0044] 100 / 100a, aerosol-generating device;

[0045] 1 / 1a, first module; 11, housing; 111, first chamber; 12 / 12a, flow guide column; 121 / 121a, first flow guide hole; 122, second flow guide hole; 13 / 13a, first limiting portion; 131 / 131a, third limiting inclined surface; 14 / 14a, second limiting portion; 141 / 141a, first limiting inclined surface; 142 / 142a, second limiting inclined surface; 15, third limiting portion; 16 / 16a, mouthpiece; 161, air inlet;

[0046] 2, main body; 21 / 21a, second module; 211, atomizing core; 212, second chamber; 213 / 213a, flexible plug; 2131, butt joint hole; 2132, first protruding ring; 2133, second protruding ring; 22 / 22a, third module; 221, power supply; 222 / 222a, shell; 2221 / 2221a, receiving cavity; 23 / 23a, first matching portion; 24 / 24a, second matching portion; 241, first matching inclined surface; 242, second matching inclined surface;

[0047] 3, fiber element;

[0048] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0049] With reference to the drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0050] The terms "first", "second", "third" in the present application are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number or sequence of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used for explaining the relative position relationship or movement condition between components, and the like, in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0051] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0052] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to or "coupled" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustrative purposes only and are not intended to be limiting.

[0053] Please refer to Figures 1-6Some embodiments of the present application provide an aerosol generating device 100, which comprises a first module 1 and a main body 2. The first module 1 comprises a first chamber 111 inside which a liquid substrate is stored. The main body 2 comprises an atomizing core 211 capable of atomizing the liquid substrate to form an aerosol, and the main body 2 is provided with a first retaining position and a second retaining position located on the side of the first retaining position in a first direction X. The first module 1 is configured to be connected to the main body 2 in the first direction X, and the first module 1 is configured to be positioned on the first retaining position or the second retaining position. When the first module 1 is located on the first retaining position, the fluid channel between the atomizing core 211 and the first chamber 111 is disconnected, so that the liquid substrate stored in the first chamber 111 cannot be provided to the atomizing core 211 in the main body 2, which can prevent the atomizing core 211 from being excessively saturated and liquid substrate leakage. When the first module 1 is located on the second retaining position, the fluid channel between the atomizing core 211 and the first chamber 111 is connected, so that the first module 1 can supplement the liquid substrate for the main body 2, so that the atomizing core 211 can atomize the liquid substrate from the first chamber 111.

[0054] In addition, the first module 1 is configured to be reversibly movable between the first retaining position and the second retaining position, so that after the aerosol generating device 100 is used for the first time, if it is necessary to stop using the aerosol generating device 100 for a long time, for example, when it is necessary to charge the aerosol generating device 100, the first module 1 can be reset from the second retaining position to the first retaining position by operation to prevent liquid substrate leakage of the aerosol generating device 100.

[0055] In some embodiments, reference can be made to Figures 1-6 The main body 2 comprises a second module 21, the second module 211 comprises the atomizing core 211, and further comprises a second chamber 212 in fluid communication with the atomizing core 211, the second chamber 212 being capable of storing the liquid substrate. When the first module 1 is located on the second retaining position, the fluid channel between the first chamber 111 and the second chamber 212 is connected, and the liquid substrate in the first chamber 111 can be first introduced into the second chamber 212, and then guided from the second chamber 212 to the atomizing core 211, so as to be atomized by the atomizing core 211 to form an aerosol. The second chamber 212 is at least part of the fluid channel between the first chamber 111 and the atomizing core 211.

[0056] The liquid substrate can include a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, and can be a liquid containing a non-tobacco substance. The liquid substrate can include water, a medicinal liquid, a solvent, ethanol, a plant extract, a flavoring, a flavoring agent, or a vitamin mixture, etc. The flavoring can include menthol, peppermint, spearmint oil, various fruit flavor components, etc., but is not limited thereto. The flavoring agent can include components that can provide various flavors or tastes to a user. The vitamin mixture can be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but is not limited thereto. Based on different properties of the liquid substrate, the aerosol-generating device can be used in different fields, such as medical, electronic aerosol atomization, etc.

[0057] In some embodiments, the atomizing core 211 includes a liquid absorbing element and a heating element, and the heating element is disposed on the liquid absorbing element. The liquid absorbing element can be a porous body for guiding the liquid substrate into the atomization range of the heating element. The heating element is used to heat the atomized aerosol substrate to generate an aerosol. The porous body can be a fiber, such as a cotton fiber, a polypropylene fiber, a polyester fiber, or a nylon fiber, etc. The porous body can be a porous ceramic or a porous metal, and the structure and composition of the porous body are not limited in the present application.

[0058] In some embodiments, the atomizing core 211 can include an ultrasonic element capable of generating ultrasonic waves, and the atomizing core 211 atomizes the liquid substrate into an aerosol using the ultrasonic waves. Of course, the atomizing core 211 can also include other elements capable of atomizing the liquid substrate into an aerosol.

[0059] In some embodiments, the second chamber 212 is capable of storing the liquid substrate, and the amount of the liquid substrate stored therein can be less than or equal to 2 ml, but is not limited thereto.

[0060] In order to prevent liquid leakage of the second module 21, the second module 21 further includes a fiber element 3 disposed in the second chamber 212, capable of absorbing the liquid substrate and capable of retaining at least part of the liquid substrate absorbed thereby. The fiber element 3 includes but is not limited to one of the following materials: a cotton fiber, a polypropylene fiber, a polyester fiber, a nylon fiber, a porous ceramic material, a high molecular fiber, or various combinations of the above materials.

[0061] The second module 21 can further include an air guide tube in air communication with the atomizing core 211 for guiding the aerosol generated by the atomizing core 211 out of the second module 21. The air guide tube can pass through the second chamber 212, and the fiber element 3 can be disposed around the air guide tube. In one example, the atomizing core 211 can be disposed in the air guide tube.

[0062] It should be noted that the second module 21 includes the fiber element 3 is optional rather than mandatory. In some embodiments, the fiber element 3 can also be arranged in the first chamber 111 of the first module 1 to prevent liquid leakage of the first chamber 111.

[0063] In some embodiments, the capacity of the first chamber 111 is greater than the capacity of the second chamber 212, and the first chamber 111 can store less than or equal to 10 ml of liquid substrate, but not limited thereto. The liquid substrate stored in the first chamber 111 can have the same taste as the liquid substrate stored in the second chamber 212, or can have different tastes. Please refer to Figures 1-4 The first module 1 includes a housing 11, and the housing 11 defines at least part of the boundary of the first chamber 111.

[0064] In some embodiments, the fluid channel between the atomizing core 211 and the first chamber 111 can be repeatedly disconnected and conducted during reversible movement of the first module 1 between the first holding position and the second holding position.

[0065] Based on this, in some embodiments, please refer to Figure 1 and Figure 3 The main body 2 includes a flow guide column 12 with a flow guide channel inside, and the flow guide column 12 is provided with a first flow guide hole 121 and a second flow guide hole 122. The second flow guide hole 122 is arranged corresponding to the first chamber 111, and the second flow guide hole 122 is used to guide the liquid substrate in the first chamber 111 into the inside of the flow guide column 12. The first flow guide hole 121 is arranged corresponding to the second chamber 212, and the first flow guide hole 121 is used to guide the liquid substrate inside the flow guide column 12 out, so that the flow guide column 12 can guide the liquid substrate in the first chamber 111 into the second chamber 212.

[0066] Please refer to Figure 6 and Figure 9 The second module 21 further includes a flexible plug 213, which is made of flexible material, for example, made of silica gel. The flexible plug 213 is provided with a butt joint hole 2131, and the hole wall of the butt joint hole 2131 is provided with a first convex ring 2132. Please refer to Figure 1 and Figure 8 When the first module 1 is located at the first holding position, the first flow guide hole 121 and the second chamber 212 are located on opposite sides of the first convex ring 2132, and the first convex ring 2132 provides a sealing connection between the flexible plug 213 and the flow guide column 12, so that the second chamber 212 is isolated from the first flow guide hole 121, and the fluid channel between the first chamber 111 and the second chamber 212 is disconnected. Please refer to Figure 3 and Figure 8When the first module 1 is located at the second holding position, the first flow guide hole 121 penetrates through the docking hole 2131 and is located outside the docking hole 2131, and the fluid passage between the first chamber 111 and the second chamber 212 is thus conducted.

[0067] In some embodiments, the fluid passage between the first chamber 111 and the second chamber 212 can be arranged at least one, as shown in the embodiments of Figure 1 、 Figure 3 and Figure 9 , the hole wall of the docking hole 2131 can further have a second convex ring 2133 located on the side of the first convex ring 2132 facing the second direction Y. When the first module 1 is located at the first holding position, the first flow guide hole 121 is located between the first convex ring 2132 and the second convex ring 2133, the second convex ring 2133 is located between the first chamber 111 and the first flow guide hole 121, and both the first convex ring 2132 and the second convex ring 2133 provide a sealing connection between the flexible plug 213 and the flow guide column 12 to prevent the liquid matrix in the first chamber 111 from leaking through the first flow guide hole 121. For details, please refer to Figure 3 When the first module 1 is located at the second holding position, the first convex ring 2132 and the second convex ring 2133 are located on the same side of the first flow guide hole 121, and the first convex ring 2132 and the second convex ring 2133 still provide a sealing connection between the flexible plug 213 and the flow guide column 12.

[0068] It should be noted that in other embodiments, the first convex ring 2132 and / or the second convex ring 2133 can be provided on the outer wall of the flow guide column 12.

[0069] During reversible movement of the first module 1 between the first holding position and the second holding position, at least part of the flow guide column 12 can reciprocate in the first flow guide hole 121 along the central axis of the first flow guide hole 121.

[0070] In some embodiments, the fluid passage between the first chamber 111 and the second chamber 212 can be arranged at least one, as shown in the embodiments of Figure 1 and Figure 3 , the fluid passage between the first chamber 111 and the second chamber 212 has two.

[0071] In some embodiments, at least one fluid passage is configured to provide a liquid path for the liquid matrix in the first chamber 111 to flow into the second chamber 212, wherein the liquid path is configured to be disconnected when the air pressure in the first chamber 111 is lower than the air pressure in the second chamber 212; at least one fluid passage is configured to provide an air path to connect the first chamber 111 and the second chamber 212, so that the air pressure between the first chamber 111 and the second chamber 212 is balanced, wherein the air path is disconnected when the first module 1 is located at the first holding position, and is conducted when the first module 1 is located at the second holding position.

[0072] To simplify the structure, at least a part of the liquid path and the gas path can coincide, at least a part of the liquid path allows the gas flow through, or at least a part of the gas path allows the liquid substrate to pass through. Of course, the liquid path and the gas path can also be independent of each other.

[0073] After the first module is removed from the main body, or when the first flow guide hole is moved to between the second protruding ring and the first chamber in the second direction, the first flow guide hole is exposed, and the sealing state of the first chamber is released, so that the liquid substrate in the first chamber leaks through the flow guide column.

[0074] To solve this problem, in some embodiments, with reference to Figure 2 , Figure 4 , Figure 5 and Figure 8 , the main body 2 further comprises a first cooperation part 23, and the first module 1 further comprises a first limiting part 13, and the first cooperation part 23 is configured to always be on the side of the first limiting part 13 towards the second direction Y during the reversible movement of the first module 1 between the first holding position and the second holding position, and can prevent the first module 1 from continuing to move in the second direction Y when interfering with the first limiting part 13, thereby preventing over operation and preventing the sealing state of the first chamber 111 from being released during the movement of the first module 1 in the second direction Y.

[0075] More specifically, when the first cooperation part 23 is in contact with the first limiting part 13, the second protruding ring 2133 is located between the first flow guide hole 121 and the first chamber 111. Preferably, when the first cooperation part 23 is in contact with the first limiting part 13, the first module 1 is located at the first holding position.

[0076] In some embodiments, with reference to Figure 2 and Figure 4 , the surface of the first limiting part 13 towards the first cooperation part 23 comprises a plane substantially perpendicular to the first direction X. Thus, when the first module 1 moves in the second direction Y to make the first limiting part 14 contact the first cooperation part 23, the plane of the first limiting part 13 towards the first cooperation part 23 substantially perpendicular to the first direction X can provide an effective stop to prevent the first limiting part 13 from continuing to move in the second direction Y beyond the first cooperation part 23.

[0077] In some embodiments, with reference to Figure 2 and Figure 4The surface of the first engaging portion 23 facing the first limiting portion 13 comprises a plane substantially perpendicular to the first direction X. Thus, when the first module 1 is moved in the second direction Y to the position where the first limiting portion 13 contacts the first engaging portion 23, the plane of the first engaging portion 23 facing the first limiting portion 13 can provide an effective stop to prevent the first limiting portion 13 from moving further in the second direction Y beyond the first engaging portion 23.

[0078] Preferably, the surface of the first limiting portion 13 facing the first engaging portion 23 comprises a plane substantially perpendicular to the first direction X, and the surface of the first engaging portion 23 facing the first limiting portion 13 comprises a plane substantially perpendicular to the first direction X. When the first module 1 is moved in the second direction Y to the position where the first limiting portion 13 contacts the first engaging portion 23, the plane of the first engaging portion 23 facing the first limiting portion 13 contacts the plane of the first limiting portion 13 facing the first engaging portion 23.

[0079] In some embodiments, reference can be made to Figure 2 When the first module 1 is in the first holding position, the first engaging portion 23 is adjacent to the first limiting portion 13, which means that the first engaging portion 23 contacts the first limiting portion 13, or there is a small gap between the first engaging portion 23 and the first limiting portion 13. Reference can be made to Figure 4 When the first module 2 is in the second holding position, the gap between the first limiting portion 13 and the first engaging portion 23 is increased, so that when the first module 1 is moved from the second holding position to the first holding position, the gap between the first engaging portion 23 and the first limiting portion 13 is gradually reduced, and even when the first module 1 is in the first holding position, the first engaging portion 23 and the first limiting portion 13 can be pressed against each other in the first direction X or the second direction Y to generate interference.

[0080] In some embodiments, the first module 1 is configured to be operable to reversibly move the first module 1 between the first holding position and the second holding position by operating the first module 1. In embodiments as shown in Figures 1-4 The first module 1 is at least partially formed on the surface of the aerosol generating device 100, so as to be exposed for user operation.

[0081] In some embodiments, the first module 1 and the second module 21 are independent of each other. It should be noted that the second module 21 and the first module 1 are independent of each other, so that the second module 21 and the first module 1 need to be assembled together under the operation of the user, and therefore the user can select the first module 1 connected with the second module 21. Different first modules 1 can be different, for example, the first chambers 111 in different first modules 1 can have different capacities, or different first modules 1 can store liquid substrates of different flavors in the first chambers 111; of course, different first modules 1 can also be completely the same.

[0082] The first module 1 can be connected with the second module 21 by operating the first module 1. In some embodiments, after the connection between the first module 1 and the second module 21 is established, the two are inseparable or difficult to separate.

[0083] In some embodiments, referring to Figures 1-6 , the main body 2 can further include a third module 22, and the third module 22 includes a power supply 221. The power supply 221 is configured to establish an electric power supply path between the power supply 221 and the atomizing core 211 when the third module 22 is in a connected state with the second module 21, so that the power supply 221 can provide electric power for the atomizing core 211 to atomize the liquid substrate.

[0084] In some embodiments, the second module 21 includes a first end and a second end arranged opposite to each other, and the first end is located on one side of the second end facing the second direction Y. When the third module 22 is connected with the second end of the second module 21, the power supply 221 and the atomizing core 211 establish the electric power supply path. The first module 1 is configured to be connected with the first end of the second module 21.

[0085] In some embodiments, the third module 22 and the second module 21 are independent of each other, so that the second module 21 and the third module 22 can be assembled together under the operation of the user. The second module 21 is configured to be removably connected with the third module 22, so that the second module 21 can be separated from the third module 22.

[0086] In some embodiments, referring to Figure 2 , Figures 4-6 , the second module 21 includes a first matching part 23, so that the first module 1 is non-removably connected on the second module 21, or so that the connection force between the first module 1 and the second module 21 is greater than the connection force between the second module 21 and the third module 22, and the first module 1 can be operated to drive the second module 21 to separate from the third module 22. The user can operate the first module 1 to drive the second module 21 to move, so that the second module 21 separates from the third module 22, and therefore the first module 1 and the second module 21 can be removed and replaced together.

[0087] For example, the user can pull the first module 1 in the second direction Y to drive the second module 21 to move in the second direction Y, so that the second module 21 is separated from the third module 22.

[0088] More specifically, reference can be made to Figure 6 The third module 22 further includes a housing 222 with an open proximal end, and the housing 222 has a receiving cavity 2221 inside, which is arranged adjacent to the proximal end of the housing 222; wherein the second module 21 is removably retained in the receiving cavity 2221, and part of the first module 1 can be removably retained in the receiving cavity 2221 and exposed outside the housing 222 for the user to operate. The user can separate the second module 21 completely shielded by the housing 222 from the third module 22 and out of the receiving cavity 2221 by operating the part of the first module 1 exposed outside the housing 222.

[0089] In some embodiments, the second module 21 and the third module 22 are removably connected, and the connection force between the second module 21 and the third module 22 is greater than the resistance required to reversibly move the first module 1 between the first retaining position and the second retaining position, so that the second module 21 and the third module 22 can remain stably connected during the reversible movement of the first module 1 between the first retaining position and the second retaining position, so that the power supply path between the power supply 221 and the atomizing core 211 can be stably maintained.

[0090] In some embodiments, the second module 21 is configured to be non-detachably connected with the third module 22, so that the second module 21 can always remain connected with the third module 22.

[0091] In some embodiments, reference can be made to Figure 7 and Figure 8 The third module 22a includes a first fitting part 23a, so that the first module 1a is non-removably connected to the third module 22a.

[0092] In some embodiments, the aerosol generating device 100 further includes a fourth module (not shown), and the first end of the second module 21 is configured to be detachably connected with the fourth module, and the first end of the second module 21 is exposed after the fourth module is removed to be connected with the first module 1.

[0093] In other words, in the initial state of the aerosol generating device 100, the fourth module is detachably connected with the first end of the second module 21, and when the aerosol generating device 100 needs to be used, or when the second cavity 212 needs to be supplied with a liquid substrate, the fourth module can be removed from the second module 21 first, and then the first module 1 is connected to the first end instead of the fourth module.

[0094] The fourth module can seal the second chamber 212 when the fourth module is connected to the second module 21, so as to prevent the liquid substrate in the second chamber 212 from leaking through the first end.

[0095] The first flow guide hole 121 is sealed when the first module 1 is not connected to the first end, so as to seal the first chamber 111 and prevent the liquid substrate in the first chamber 111 from leaking.

[0096] In some embodiments, the first module 1 can further comprise a mouthpiece 16, which can be integrally formed with the housing 11 or fixed to the housing 11. The mouthpiece 16 is used for a user to hold in the mouth, and has an air inlet 161. The user can draw the aerosol generated by the second module 21 by sucking the air inlet 161, so the air inlet 161 is in fluid communication with the air guide pipe in the second module 21. Figures 1-6

[0097] Based on this, when the fourth module is connected to the second module 21, the air guide pipe can be kept clean and the air convection between the second module 21 and the outside air can be reduced, which is beneficial to prevent the liquid substrate in the second chamber 212 from leaking and deteriorating. In some embodiments, the fourth module can also seal the air guide pipe, so as to prevent the air pressure inside the second module 21 from being affected by the air pressure outside, which helps to prevent the fiber element 3 in the second chamber 212 from swelling and the liquid substrate in the second chamber 212 from leaking; for example, when the air pressure around the aerosol generating device in the initial state decreases, the liquid substrate in the second chamber 212 can be prevented from flowing out automatically.

[0098] In some embodiments, the first module 1 is configured to be relatively stably retained in the first retaining position. It should be noted that when the first module 1 is in the first retaining position, if the first chamber 111 in the first module 1 is in a good sealing state, and the first module 1 is at least partially connected to the main body 2 and remains relatively stationary, the first module 1 needs to overcome a relatively large resistance to move from the first retaining position to the second retaining position in the first direction X or to move away from the first retaining position in the second direction Y, and then the first module 1 can be said to be relatively stably retained in the first retaining position.

[0099] In order to enable the first module 1 to be relatively stably retained in the first retaining position, in some embodiments, the main body 2 can further comprise a second cooperating part 24, and the first module 1 can further comprise a second limiting part 14. Figure 2 Figures 4-6

[0100] In some embodiments, the first module 1 can further comprise a mouthpiece 16, which can be integrally formed with the housing 11 or fixed to the housing 11. The mouthpiece 16 is used for a user to hold in the mouth, and has an air inlet 161. The user can draw the aerosol generated by the second module 21 by sucking the air inlet 161, so the air inlet 161 is in fluid communication with the air guide pipe in the second module 21. Figure 2 ​​​When the first module 1 is located at the first holding position, the second engaging portion 24 is located at the side of the second limiting portion 14 facing the first direction X, so as to hinder the first module 1 from moving along the first direction X, thereby assisting to overcome the gravity of the first module 1 so that the first module 1 is kept at the first holding position, preventing the first module 1 from moving to the second holding position automatically or unexpectedly, preventing the fluid passage between the atomizing core 211 and the first chamber 111 from being conducted, and preventing the atomizing core 211 and / or the second chamber 212 from being over-saturated. For example, the second engaging portion 24 can be located at the side of the second limiting portion 14 facing the first direction X when the first module 1 is located at the first holding position. Figure 4 When the first module 1 is located at the second holding position, the second engaging portion 24 is located at the side of the second limiting portion 14 facing the second direction Y, so as to hinder the first module 1 from moving along the second direction Y, preventing the first module 1 from moving to the first holding position automatically or unexpectedly, preventing the fluid passage between the atomizing core 211 and the first chamber 111 from being disconnected, so that the first module 1 can be kept at the second holding position.

[0101] Further, during at least part of the movement of the first module 1 from the first holding position to the second holding position, and / or during at least part of the movement of the first module 1 from the second holding position to the first holding position, the second engaging portion 24 interferes with the second limiting portion 14 in a third direction, which is substantially perpendicular to the first direction and the second direction. For example, during the at least part of the movement, at least part of the surface of the second engaging portion 24 slides against at least part of the surface of the second limiting portion 14, or at least part of the surface of the second limiting portion 14 slides against at least part of the surface of the second engaging portion 24.

[0102] Therefore, during the movement of the second engaging portion 24 from the side of the second limiting portion 14 facing the first direction X to the side of the second limiting portion 14 facing the second direction Y, or during the movement of the second engaging portion 24 from the side of the second limiting portion 14 facing the second direction Y to the side of the second limiting portion 14 facing the first direction X, the interference between the second engaging portion 24 and the second limiting portion 14 can generate a damping feeling, which can form a prompt signal. When driving the first module 1 to move from the first holding position to the second holding position, the user can determine whether the first module 1 has reached the second holding position based on the generated damping feeling; when driving the first module 1 to move from the second holding position to the first holding position, the user can determine whether the first module 1 has reached the first holding position based on the generated damping feeling.

[0103] In some embodiments, the second engaging portion 24 can be located at the side of the second limiting portion 14 facing the first direction X when the first module 1 is located at the first holding position, and the second engaging portion 24 can be located at the side of the second limiting portion 14 facing the second direction Y when the first module 1 is located at the second holding position. Figure 2When the first module 1 is located at the first holding position, the first engaging portion 23 and the second engaging portion 24 are located between the first limiting portion 13 and the second limiting portion 14, and the first engaging portion 23 interferingly engages with the first limiting portion 13 and the second engaging portion 24 interferingly engages with the second limiting portion 14. Thus, the first engaging portion 23 and the second engaging portion 24 are more stably held between the first limiting portion 13 and the second limiting portion 14, so that the first module 1 can be moved in the first direction X only by overcoming the interference resistance between the second engaging portion 24 and the second limiting portion 14 in the first direction X or in the second direction Y, and it is helpful to prevent the first module 1 from shaking in the first direction X or the second direction Y at the first holding position.

[0104] For example, a groove, a blind hole or a through hole can be formed between the first limiting portion 13 and the second limiting portion 14, the first engaging portion 23 and the second engaging portion 24 can be opposite two side sections of a protruding structure, or the first engaging portion 23 and the second engaging portion 24 can both be protrusions and be spaced apart, and when the first module 1 is located at the second holding position, the first engaging portion 23 and the second engaging portion 24 are embedded in the groove, the blind hole or the through hole between the first limiting portion 13 and the second limiting portion 14.

[0105] In some embodiments, reference can be made to Figure 4 When the first module 1 is located at the second holding position, the second limiting portion 14 is located between the first engaging portion 23 and the second engaging portion 24, and opposite sides of the second limiting portion 14 respectively interferingly engage with the first engaging portion 23 and the second engaging portion 24. Thus, the second limiting portion 14 is more stably held between the first engaging portion 23 and the second engaging portion 24, so that the first module 1 can be moved in the second direction Y only by overcoming the interference resistance between the second engaging portion 24 and the second limiting portion 14 in the first direction X or in the second direction Y, and it is helpful to prevent the first module 1 from shaking in the first direction X or the second direction Y at the second holding position.

[0106] For example, a groove, a blind hole or a through hole can be formed between the first engaging portion 23 and the second engaging portion 24, and the second limiting portion 14 can be substantially protruding, and when the first module 1 is located at the second holding position, the second limiting portion 14 is embedded in the groove, the blind hole or the through hole between the first engaging portion 23 and the second engaging portion 24.

[0107] In some embodiments, reference can be made to Figure 2 and Figure 4The first module 1 further comprises a third limiting portion 15 configured to be always kept on one side of the second engaging portion 24 in the second direction Y during reversible movement of the first module 1 between the first holding position and the second holding position; when the first module 1 is located at the second holding position, the second engaging portion 24 is located between the second limiting portion 14 and the third limiting portion 15, and the opposite sides of the second engaging portion 24 are respectively in interference fit with the second limiting portion 14 and the third limiting portion 15. Thus, the resistance to be overcome by the first module 1 when moving from the first holding position to the second holding position is smaller than the resistance to be overcome by the first module 1 when moving from the second holding position to the first holding position. This enables the first module 1 to be more easily moved from the first holding position to the second holding position, so that the fluid passage between the atomizing core 211 and the first chamber 111 can be more easily and stably maintained in conduction. It also prevents the user from overstraining when pulling the first module 1 from the second holding position to the first holding position by sucking the mouthpiece 16 on the first module 1.

[0108] For example, a groove, a blind hole or a through hole can be formed between the second limiting portion 14 and the third limiting portion 15, and the second engaging portion 24 can be substantially a protrusion, which is fitted in the groove, the blind hole or the through hole between the second limiting portion 14 and the third limiting portion 15 when the first module 1 is located at the second holding position.

[0109] It should be noted that the resistance to be overcome by the first module 1 when moving from the first holding position to the second holding position can also be made smaller than the resistance to be overcome by the first module 1 when moving from the second holding position to the first holding position by other means.

[0110] In some embodiments, reference can be made to Figure 7 and Figure 8 When the first module 1a is located at the first holding position, the first limiting portion 13a and the second limiting portion 14a are located between the first engaging portion 23a and the second engaging portion 24a, and the first engaging portion 23a is in interference fit with the first limiting portion 13a, and the second engaging portion 24a is in interference fit with the second limiting portion 14a. Thus, the first limiting portion 13a and the second limiting portion 14a are more stably kept between the first engaging portion 23a and the second engaging portion 24a, so that the interference resistance between the second engaging portion 24a and the second limiting portion 14a in the first direction X or in the second direction Y needs to be overcome to move the first module 1a in the first direction X, and this helps to prevent the first module 1a from shaking in the first direction X or the second direction Y at the first holding position.

[0111] For example, a groove, a blind hole or a through hole can be formed between the first engaging portion 23a and the second engaging portion 24a, the first limiting portion 13a and the second limiting portion 14a can be opposite two side sections of a protruding structure, or the first limiting portion 13a and the second limiting portion 14a can both be protrusions and are spaced apart, and when the first module 1a is located at the second holding position, the first limiting portion 13a and the second limiting portion 14a are fitted in the groove, the blind hole or the through hole between the first engaging portion 23a and the second engaging portion 24a.

[0112] In some embodiments, reference can be made to Figure 7 and Figure 8 , and when the first module 1a is located at the second holding position, the second engaging portion 24a is located between the first limiting portion 13a and the second limiting portion 14a, and opposite sides of the second engaging portion 24a respectively interfere with the first limiting portion 13a and the second limiting portion 14a.

[0113] In some embodiments, reference can be made to Figure 2 and Figure 4 , the surface of the second engaging portion 24a facing the first direction X includes a first engaging slope 241, and the second limiting portion 14 is configured to slide along the first engaging slope 241 during at least part of the movement of the first module 1 from the second holding position to the second direction Y. The first engaging slope 241 can provide a certain force to prevent the first module 1 from moving from the second holding position to the second direction Y, so that the first module 1 remains in the second holding position, while when the force applied on the first module 1 is large enough, the first engaging slope 241 can guide the second limiting portion 14 to pass the second engaging portion 24, so that the first module 1 can move to the first holding position.

[0114] In some embodiments, reference can be made to Figure 2 and Figure 4 , the surface of the second limiting portion 14 facing the second direction Y includes a first limiting slope 141, and the second engaging portion 24 is configured to slide along the first limiting slope 141 during at least part of the movement of the first module 1 from the second holding position to the second direction. The first limiting slope 141 can provide a certain force to prevent the first module 1 from moving from the second holding position to the second direction Y, so that the first module 1 remains in the second holding position, while when the force applied on the first module 1 is large enough, the first limiting slope 141 can guide the second limiting portion 14 to pass the second engaging portion 24, so that the first module 1 can move to the first holding position.

[0115] Preferably, when the first module 1 is located at the second holding position, the first limiting slope 141 is in surface contact with the first engaging slope 241.

[0116] In some embodiments, reference can be made to Figure 2and Figure 4 The surface of the second engaging portion 24 facing the second direction Y comprises a second engaging slope 242, and the second limiting portion 14 is configured to slide along the second engaging slope 242 during at least part of the movement of the first module 1 from the first holding position to the first direction X. The second engaging slope 242 is capable of providing a certain force to resist the movement of the first module 1 from the first holding position to the first direction X, so that the first module 1 is kept in the first holding position, while the second engaging slope 242 is capable of guiding the second limiting portion 14 to pass the second engaging portion 24 when the force applied on the first module 1 is large enough, so that the first module 1 is capable of moving to the second holding position.

[0117] In some embodiments, reference can be made to Figure 2 and Figure 4 The surface of the second limiting portion 14 facing the first direction X comprises a second limiting slope 142, and the second engaging portion 24 is configured to slide along the second limiting slope 142 during at least part of the movement of the first module 1 from the first holding position to the first direction X. The second limiting slope 142 is capable of providing a certain force to resist the movement of the first module 1 from the first holding position to the first direction X, so that the first module 1 is kept in the first holding position, while the second limiting slope 142 is capable of guiding the second limiting portion 14 to pass the second engaging portion 24 when the force applied on the first module 1 is large enough, so that the first module 1 is capable of moving to the second holding position.

[0118] Preferably, the second limiting slope 142 is in surface contact with the second engaging slope 242 when the first module 1 is in the first holding position.

[0119] In some embodiments, the angle between the first engaging slope 241 and the first direction X is larger than the angle between the second engaging slope 242 and the first direction X, so that the slope of the first engaging slope 241 is larger than the slope of the second engaging slope 242. Thus, the resistance that the first module 1 needs to overcome when moving from the first holding position to the second holding position is smaller than the resistance that the first module 1 needs to overcome when moving from the second holding position to the first holding position. This makes the fluid passage between the atomizing core 211 and the first chamber 111 more easily and stably conductive. It also prevents the user from overstraining when pulling the first module 1 from the second holding position to the first holding position by drawing the mouthpiece 16 on the first module 1.

[0120] In some embodiments, reference can be made to Figure 7 and Figure 8The surface of the first limiting portion 13a facing the first direction X includes a third limiting slope 131a, and the first limiting portion 13a is always kept in the second direction of the second cooperating portion 24a. When the first module 1 is located in the first holding position, the first limiting portion 13a is spaced apart from the second cooperating portion 24a.

[0121] The surface of the second limiting portion 14a facing the second direction Y includes a second limiting slope 142a, and the surface of the second limiting portion 14a facing the first direction X includes a first limiting slope 141a. When the first module 1a is located in the second holding position, the second cooperating portion 24a is located between the second limiting slope 142a and the third limiting slope 131a, and the second cooperating portion 24a contacts the second limiting slope 142a.

[0122] In some embodiments, the first limiting slope 141a and the first direction X form an angle, and the second limiting slope 142a and the first direction X form an angle. Figure 7 and Figure 8 The angle between the first limiting slope 141a and the first direction X is greater than the angle between the second limiting slope 142a and the first direction X, so that the slope of the first limiting slope 141a is greater than the slope of the second limiting slope 142a. Thus, the resistance that the first module 1 needs to overcome when moving from the first holding position to the second holding position is less than the resistance that the first module 1a needs to overcome when moving from the second holding position to the first holding position. The fluid channel between the atomizing core and the first chamber can be more easily opened and more stably maintained. It can also prevent the user from overexerting when sucking the mouthpiece 16a on the first module 1a containing the cartridge, thereby pulling the first module 1a from the second holding position to the first holding position.

[0123] In some embodiments, the moving distance L1 of the first module 1 between the first holding position and the second holding position satisfies: 0.5mm≤L1≤5mm. Preferably, 1mm≤L1≤3mm. For example, L1 can be equal to 2mm, or L1 can be equal to 2.5mm.

[0124] In some embodiments, during the reversible movement of the first module 1 between the first holding position and the second holding position, the first cooperating portion 23 moves between the first limiting portion 13 and the second limiting portion 14, and the distance L2 between the first limiting portion 13 and the second limiting portion 14 satisfies: 0.5mm≤L2≤5mm. Preferably, 1mm≤L2≤3mm. For example, L2 can be equal to 2mm, or L2 can be equal to 2.5mm.

[0125] In some embodiments, during reversible movement of the first module 1 between the first holding position and the second holding position, the first limiting portion 13 moves between the first engaging portion 23 and the second engaging portion 24, and the distance L3 between the first engaging portion 23 and the second engaging portion 24 satisfies: 0.5mm≤L3≤5mm. Preferably, 1mm≤L3≤3mm. For example, L3 can be equal to 2mm, or L3 can be equal to 2.5mm.

[0126] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification, and further, for those skilled in the art, can be improved or changed according to the above description, and all these improvements and changes shall belong to the protection scope of the claims of the present application.

Claims

1. An aerosol-generating device, characterized by, Comprising: a main body comprising a first mating portion, a second mating portion, and an atomization core for atomizing a liquid substrate to generate an aerosol; and a first module having a first chamber inside for storing the liquid substrate, the first module further comprising a first limiting portion and a second limiting portion, the first module being configured to be connectable with the main body and positionable in a first holding position or a second holding position along a first direction, and the first module being operable to reversibly move between the first holding position and the second holding position; when the first module is in the first holding position, a fluid passage between the atomization core and the first chamber is disconnected, and the second mating portion is located on a side of the second limiting portion facing the first direction to hinder movement of the first module in the first direction; when the first module is in the second holding position, the fluid passage between the atomization core and the first chamber is connected, and the second mating portion is located on a side of the second limiting portion facing a second direction to hinder movement of the first module in the second direction, the second direction being opposite to the first direction; wherein the first mating portion is configured to always remain on a side of the first limiting portion facing the second direction to prevent the first module from moving away from the first holding position in the second direction.

2. The aerosol-generating device of claim 1, wherein, During at least part of the travel of the first module from the first holding position to the second holding position, and / or during at least part of the travel of the first module from the second holding position to the first holding position, the second mating portion interferes with the second limiting portion in a third direction, the third direction being substantially perpendicular to the first direction.

3. The aerosol-generating device of claim 1, wherein, When the first module is in the first holding position, the first mating portion and the second mating portion are located between the first limiting portion and the second limiting portion, and the first mating portion interferes with the first limiting portion, and the second mating portion interferes with the second limiting portion.

4. The aerosol-generating device of claim 3, wherein, When the first module is in the second holding position, the second limiting portion is located between the first mating portion and the second mating portion, and opposite sides of the second limiting portion respectively interfere with the first mating portion and the second mating portion.

5. The aerosol-generating device according to claim 3 or 4, wherein, The first module further comprises a third limiting portion, the third limiting portion being configured to always remain in the second direction of the second mating portion during reversible movement of the first module between the first holding position and the second holding position; When the first module is in the second holding position, the second mating portion is located between the second limiting portion and the third limiting portion, and opposite sides of the second mating portion respectively interfere with the second limiting portion and the third limiting portion.

6. The aerosol-generating device of claim 1, wherein, When the first module is in the first holding position, the first limiting portion and the second limiting portion are located between the first mating portion and the second mating portion, and the first mating portion interferes with the first limiting portion, and the second mating portion interferes with the second limiting portion.

7. The aerosol-generating device of claim 6, wherein, When the first module is located at the second holding position, the second engaging portion is located between the first limiting portion and the second limiting portion, and opposite sides of the second engaging portion are respectively in interference fit with the first limiting portion and the second limiting portion.

8. The aerosol-generating device of claim 1, wherein, The surface of the first limiting portion facing the first engaging portion comprises a plane substantially perpendicular to the first direction; and / or The surface of the first engaging portion facing the first limiting portion comprises a plane substantially perpendicular to the first direction. 9.The aerosol-generating device of claim 1, wherein, The surface of the second engaging portion facing the first direction comprises a first engaging inclined surface, and the second limiting portion is configured to slide along the first engaging inclined surface during at least part of the movement of the first module from the second holding position to the second direction; And / or The surface of the second limiting portion facing the second direction comprises a first limiting inclined surface, and the second engaging portion is configured to slide along the first limiting inclined surface during at least part of the movement of the first module from the second holding position to the second direction. 10.The aerosol-generating device of claim 1, wherein, The surface of the second engaging portion facing the second direction comprises a second engaging inclined surface, and the second limiting portion is configured to slide along the second engaging inclined surface during at least part of the movement of the first module from the first holding position to the first direction; And / or The surface of the second limiting portion facing the first direction comprises a second limiting inclined surface, and the second engaging portion is configured to slide along the second limiting inclined surface during at least part of the movement of the first module from the first holding position to the first direction. 11.The aerosol-generating device of claim 1, wherein, The movement distance L1 of the first module between the first holding position and the second holding position satisfies: 0.5mm≤L1≤5mm; or The first engaging portion is configured to move between the first limiting portion and the second limiting portion during reversible movement of the first module between the first holding position and the second holding position, and the distance L2 between the first limiting portion and the second limiting portion satisfies: 0.5mm≤L2≤5mm; or The first limiting portion is configured to move between the first engaging portion and the second engaging portion during reversible movement of the first module between the first holding position and the second holding position, and the distance L3 between the first engaging portion and the second engaging portion satisfies: 0.5mm≤L3≤5mm.

12. Aerosol-generating device according to any of claims 1 to 4 and 6 to 11, characterized in that, The main body comprises: A second module comprising a second cavity for storing liquid substrate and an atomization core, the second cavity being in fluid communication with the atomization core, and a fluid channel from the first cavity to the second cavity being open when the first module is located at the second holding position; and A third module comprising a power supply, the power supply being configured to establish an electrical power supply path between the atomization core when the third module is in a connected state with the second module.

13. The aerosol-generating device of claim 12, wherein, The second module comprises the first engaging portion, so that the first module is non-removably connected to the second module.

14. The aerosol-generating device of claim 13, wherein, The second module is removably connected to the third module, and the first module is configured to be operable by a user to establish a connection with the second module and to cause the second module to be removed from the third module. 15.The aerosol-generating device of claim 12, wherein, The third module includes the first engagement portion, such that the first module is non-removably connected to the third module.

16. The aerosol-generating device of claim 5, wherein, The main body includes: a second module including the atomizing core and a second chamber for storing a liquid substrate, the second chamber being in fluid communication with the atomizing core, a fluid passage from the first chamber to the second chamber being open when the first module is in the second holding position; and a third module including a power source for establishing a power supply path between the atomizing core when the third module is in a connected state with the second module.

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