Aerosol generation device

Abstract

An aerosol generation device 10 comprising a liquid storage device 1, including a first housing 11 defined with a first liquid storage cavity 12, a device body 2, including a second housing 21 defined

Description

TECHNICAL FIELD

[0001] Embodiments of this application relate to the field of aerosol generation technologies, and specifically, to an aerosol generation device. BACKGROUND

[0002] A liquid storage cavity of an aerosol generation device is usually in direct communication with an atomization assembly. After a liquid substrate is stored in the liquid storage cavity for a long time, atomization liquid may leak through a liquid guide member of the atomization assembly, affecting user experience. In the related art, when a user does not inhale the aerosol generation device, a manner of separating the liquid storage cavity and the atomization assembly is usually used to prevent liquid leakage. However, this manner leads to insufficient supply of the liquid substrate during an initial stage of user inhalation of the aerosol generation device, which easily results in dry heating of the atomization assembly, further affecting taste experience of the user. SUMMARY

[0003] To resolve problems of liquid leakage during transportation or static storage of an aerosol generation device and insufficient oil supply and poor taste experience during an initial stage of inhalation, an embodiment of this application provides an aerosol generation device. The aerosol generation device includes: a liquid storage device, including a first housing, where the first housing is defined with a first liquid storage cavity configured to store a liquid substrate; a device body, including a second housing, where the second housing is defined with a second liquid storage cavity configured to store a liquid substrate; a liquid storage member, filled in at least a partial space of the second liquid storage cavity, and configured to receive and retain the liquid substrate from the first liquid storage cavity; and an atomization assembly, arranged in the second housing and adjacent to the second liquid storage cavity, and configured to atomize the liquid substrate retained in the liquid storage member, to generate an aerosol, where a fluid channel communicating the first liquid storage cavity with the second liquid storage cavity is provided between the first liquid storage cavity and the second liquid storage cavity, and the fluid channel is configured with an open state and a closed state; when the fluid channel is in the closed state, the liquid substrate in the first liquid storage cavity is prevented from entering the second liquid storage cavity; and when the fluid channel is in the open state, the liquid substrate in the first liquid storage cavity is allowed to enter the second liquid storage cavity to be absorbed by the liquid storage member.

[0004] In an embodiment of this application, the first housing has a first position and a second position relative to the second housing; when the first housing is in the first position, the fluid channel is closed; and when the first housing is in the second position, the fluid channel is opened, and the liquid substrate in the first liquid storage cavity may enter the second liquid storage cavity.

[0005] In an embodiment of this application, the liquid storage device further includes at least one liquid guide column extending outward from the first liquid storage cavity, the liquid guide column is hollow and provided with at least one liquid guide hole, and when the first housing is in the second position, the liquid guide column is at least partially inserted into the second liquid storage cavity, enabling the liquid guide hole to communicate with the second liquid storage cavity.

[0006] In an embodiment of this application, the aerosol generation device further includes a first sealing member movably connected to the liquid guide column, where the first sealing member closes the liquid guide hole when the first housing is in the first position.

[0007] In an embodiment of this application, the first sealing member has a first sealing subportion and a second sealing sub-portion; the liquid guide hole has a closed state and an open state; when the liquid guide hole is in the closed state, the liquid guide hole is located between the first sealing sub-portion and the second sealing sub-portion; and when the liquid guide hole is in the open state, the second sealing sub-portion is located between the first sealing subportion and the liquid guide hole.

[0008] In an embodiment of this application, an aperture or a diameter of the liquid guide hole is in a range of 0.5 mm to 1.5 mm.

[0009] In an embodiment of this application, a distance between an outer side wall of the liquid guide column and an inner side wall of the holder is in a range of 0.1 mm to 1.0 mm; and / or a distance between an outer side wall of the liquid guide column and an outer side wall of the liquid storage member is in a range of 0.1 mm to 1.0 mm.

[0010] In an embodiment of this application, at least one liquid guide hole comprises two liquid guide columns.

[0011] In an embodiment of this application, the liquid guide hole is provided on a side wall of the liquid guide column.

[0012] In an embodiment of this application, an aperture of the liquid guide hole is smaller than an inner diameter of the hollow part of the liquid guide column.

[0013] In an embodiment of this application, a holder is provided in the second housing, the second liquid storage cavity defining in the holder, and the holder is provided with an insertion hole for the liquid guide column to insert.

[0014] In an embodiment of this application, the holder is further defined with a liquid flow cavity in communication with the insertion hole, and the liquid guide column can be partially inserted into the liquid flow cavity.

[0015] In an embodiment of this application, an opening of one end of the liquid flow cavity is blocked by the liquid storage member. In an embodiment of this application, the holder is defined with a gas cavity, the device body includes a support tube, the support tube is embedded in a mounting hole of the holder, an inner side wall of the mounting hole is provided with a first air channel, and the gas cavity communicates with atmospheric pressure through the first air channel.

[0016] In an embodiment of this application, the gas cavity includes a first gas cavity and a second gas cavity located on both longitudinal sides of the liquid storage member, an inner side wall of the holder is provided with a second air channel, and the second air channel enables gas communication between the first gas cavity and the second gas cavity.

[0017] In an embodiment of this application, the housing includes the first housing and the second housing, the first housing has a first buckle, and the second housing has a first slot and a second slot; when the first buckle is engaged in the first slot, the housing is in the first position; and when the first buckle is engaged in the second slot, the housing is in the second position.

[0018] In an embodiment of this application, a sealing valve body is provided between the first liquid storage cavity and the second liquid storage cavity, the sealing valve body includes a connection portion and a blocking portion, the blocking portion separates the first liquid storage cavity from the second liquid storage cavity, and the connection portion may be driven by the first housing or the second housing to pull the blocking portion to communicate the first liquid storage cavity with the second liquid storage cavity.

[0019] In an embodiment of this application, the liquid storage member is provided with a groove, and the liquid guide column can be inserted into the groove of the liquid storage member.

[0020] In this application, the first liquid storage cavity and the second liquid storage cavity are arranged, and the second liquid storage cavity adjacent to the atomization assembly is provided with the liquid storage member, so that the liquid substrate in the second liquid storage cavity is absorbed into and is retained on the liquid storage member, and is not prone to leakage during static storage or transportation of the aerosol generation device. In addition, the liquid substrate in the liquid storage member may enter the atomization assembly in time during inhalation, to avoid dry heating and maintain an optimal taste experience. In addition, the first liquid storage cavity may communicate with the second liquid storage cavity through the fluid channel, so that the liquid substrate in the second liquid storage cavity is absorbed and retained by the liquid storage member without leakage. In addition, the liquid substrate in the first liquid storage cavity can also supplement the liquid substrate in the second liquid storage cavity, enabling the entire aerosol generation device to have a larger capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described with reference to the corresponding figures in the accompanying drawings, and the descriptions do not constitute a limitation to the embodiments. Components in the accompanying drawings that have same reference numerals are represented as similar components, and unless otherwise particularly stated, the figures in the accompanying drawings are not drawn to scale.

[0022] FIG. 1 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0023] FIG. 2 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0024] FIG. 3 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0025] FIG. 4 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0026] FIG. 5 is a partial enlarged view of FIG. 4;

[0027] FIG. 6 is a schematic diagram of a first valve body according to an embodiment of this application;

[0028] FIG. 7 is a schematic diagram of a first valve body according to an embodiment of this application;

[0029] FIG. 8 is a schematic diagram of a first sealing member according to an embodiment of this application;

[0030] FIG. 9 is a schematic diagram of a first sealing member according to an embodiment of this application;

[0031] FIG. 10 is a schematic diagram of an atomization assembly according to an embodiment of this application;

[0032] FIG. 11 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0033] FIG. 12 is a schematic diagram of an aerosol generation device according to an embodiment of this application;

[0034] FIG. 13 is a schematic diagram of a sealing valve body according to an embodiment of this application;

[0035] FIG. 14 is a schematic diagram of a sealing valve body according to an embodiment of this application;

[0036] FIG. 15 is a schematic diagram of a holder according to an embodiment of this application;

[0037] FIG. 16 is a schematic diagram of a holder according to an embodiment of this application;

[0038] FIG. 17 is a schematic diagram of a holder and a liquid storage member according to an embodiment of this application; and

[0039] FIG. 18 is a schematic diagram of a holder and a liquid storage member according to an embodiment of this application. In the drawings: 10: aerosol generation device; 1: liquid storage device; 11: first housing; 111: first buckle; 112: second buckle; 12: first liquid storage cavity; 123: fluid channel; 13: air tube; 2: device body; 12: second housing; 121: first slot; 122: second slot; 22: second liquid storage cavity; 23: liquid storage member; 231: groove; 24: holder; 241: insertion hole; 242: liquid flow cavity; 243: mounting hole; 244: first air channel; 245: second air channel; 246: gas cavity; 2461: first gas cavity; 2462: second gas cavity; 25: support tube; 251: liquid guide port; 3: atomization assembly; 31: liquid guide member; 311: liquid guide surface; 312: heating surface; 32: heating body; 33: atomization cavity; 4: first valve body; 41: sealing portion; 42: liquid guide column; 421: liquid guide cavity; 43: liquid guide hole; 44: first air vent; 51: first sealing member; 511: first sealing sub-portion; 512: second sealing sub-portion; 513: second air vent; 514: first sealing member mounting hole; 52: second sealing member; 6: sealing valve body; 61: connection portion; 62; blocking portion; 7: battery assembly; and 8: circuit board assembly. DETAILED DESCRIPTION

[0040] The following clearly and completely describes the technical solutions in embodiments of this application with reference to the accompanying drawings in embodiments of this application. It is clear that described embodiments are only of some embodiments of this application rather than all of embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

[0041] In this application, the terms "first", "second", and "third" are used merely for the purpose of description, and shall not be construed as indicating or implying the relative importance or implying a quantity or a sequence of indicated technical features. All directional indications (such as upper, lower, left, right, front, and back) in the embodiments of this application are only used for explaining the relative positional relationships or movements between components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indications change correspondingly. In addition, the terms "include", "have", and any variant thereof are intended to cover a non-exclusive inclusion. For example, processes, methods, systems, products, or devices including a series of steps or units is not limited to the listed steps or units, but instead, optionally include other steps or units not listed, or optionally include other steps or units inherent to the processes, methods, products, or devices.

[0042] An "embodiment" mentioned in this specification means that particular features, structures, or characteristics described with reference to this embodiment may be included in at least one embodiment of this application. The phrase shown at various positions in the specification may not necessarily refer to a same embodiment, nor an independent or optional embodiment exclusive from another embodiment. It is explicitly and implicitly understood by a person skilled in the art that embodiments described in this specification may be combined with another embodiment.

[0043] It should be noted that, when an element is referred to as "being fixed to" another element, the element may be directly on the another element, or there may be an intermediate element. When an element is considered to be "connected to" another element, the element may be directly connected to the another element, or one or more intervening elements may exist simultaneously. The terms "vertical", "horizontal", "left", "right", and similar expressions used in this specification are merely used for an illustrative purpose, and do not indicate a unique implementation.

[0044] An embodiment of this application provides an aerosol generation device 10. As shown in FIG. 1 to FIG. 5, the aerosol generation device 10 includes: a liquid storage device 1, including a first housing 11, where the first housing 11 is defined with a first liquid storage cavity 12 configured to store a liquid substrate; a device body 2, including a second housing 21, where the second housing 21 is defined with a second liquid storage cavity 22 configured to store a liquid substrate; a liquid storage member 23, filled in at least a partial space of the second liquid storage cavity 22, and configured to receive and retain the liquid substrate from the first liquid storage cavity 12; and an atomization assembly 3, arranged in the second housing 21 and adjacent to the second liquid storage cavity 22, and configured to atomize the liquid substrate retained in the liquid storage member 23, to generate an aerosol, where a fluid channel 123 communicating the first liquid storage cavity 12 with the second liquid storage cavity 22 is provided between the first liquid storage cavity 12 and the second liquid storage cavity 22, and the fluid channel 123 is configured with an open state and a closed state; when the fluid channel 123 is in the closed state, the liquid substrate in the first liquid storage cavity 12 is prevented from entering the second liquid storage cavity 22; and when the fluid channel 123 is in the open state, the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23.

[0045] In this application, the first liquid storage cavity 12 and the second liquid storage cavity 22 are arranged, and the second liquid storage cavity 22 adjacent to the atomization assembly 3 is provided with the liquid storage member 23, so that the liquid substrate in the second liquid storage cavity 22 is absorbed into and is retained on the liquid storage member 23, and is not prone to leakage during static storage or transportation of the aerosol generation device 10. In addition, the liquid substrate in the liquid storage member 23 may enter the atomization assembly 3 in time during inhalation, to avoid dry heating and maintain an optimal taste experience. In addition, the first liquid storage cavity 12 may communicate with the second liquid storage cavity 22 through the fluid channel 123, so that the liquid substrate in the second liquid storage cavity 22 is absorbed and retained by the liquid storage member 23 without leakage. In addition, the liquid substrate in the first liquid storage cavity 12 can also supplement the liquid substrate in the second liquid storage cavity 22, enabling the entire aerosol generation device 10 to have a larger capacity.

[0046] In an embodiment of this application, the liquid storage device 1 includes the first housing 11 and an air tube 13, the device body 2 includes the second housing 21, the liquid storage member 23, a holder 24, and a support tube 25, the holder 24 fits with the first housing 11, and the second housing 12 to form an appearance surface of the aerosol generation device 10, the holder 24 is snap-fit into the second housing 12, one end of the air tube 13 is connected to the first housing 11, and the other end of the air tube 13 is movably connected to the holder 24. The first housing 11, the holder 24, and the air tube 13 enclose to form the first liquid storage cavity 12. The support tube 25 is embedded in the holder 24, and the holder 24, the support tube 25, and the atomization assembly 3 are enclosed to form the second liquid storage cavity 22. In an embodiment of this application, the relative movement between the first housing 11 and the second housing 12 may drive the air tube 13 and the holder to move relative to each other.

[0047] In an embodiment of this application, the first housing 11 and the second housing 21 have a first position and a second position. As shown in FIG. 1, when the first housing 11 and the second housing 21 are in the first position, the fluid channel 123 is closed, and the liquid substrate is prevented from entering the second liquid storage cavity 22. As shown in FIG. 2 and FIG. 3, when the first housing 11 and the second housing 21 are in the second position, the fluid channel 123 is opened, and the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23. In an embodiment of this application, the first housing 11 is movably connected to the second housing 12, enabling relative positions of the first housing 11 and the second housing 12 to change, to drive the fluid channel 123 to open or close. Therefore, the liquid substrate in the first liquid storage cavity 12 can supplement the liquid substrate in the second liquid storage cavity 22, enabling the entire aerosol generation device 10 to have a larger capacity. In an embodiment of this application, when a user needs to use the aerosol generation device 10 for inhalation, the user may change the relative positions of the first housing 11 and the second housing 12, so that the housing 1 is in the second position, the fluid channel 123 is opened, and the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23. When the user does not need to use the aerosol generation device 10 for inhalation, the user may change the relative positions of the first housing 11 and the second housing 12, so that the housing 1 is in the first position, the fluid channel 123 is closed, and the liquid substrate is prevented from entering the second liquid storage cavity 22, preventing leakage of the liquid substrate during non-operation of the aerosol generation device 10.

[0048] In an embodiment of this application, the liquid storage member 23 is filled in at least a partial space of the second liquid storage cavity 22, and is configured to receive and retain the liquid substrate from the first liquid storage cavity 12. In an embodiment of this application, the liquid storage member 23 completely fills the second liquid storage cavity 22, and after entering the second liquid storage cavity 22, all the liquid substrate in the first liquid storage cavity 12 is absorbed by the liquid storage member 23. In an embodiment of this application, the liquid storage member 23 fills a partial space of the second liquid storage member 112, one part of the liquid substrate entering the second liquid storage cavity 22 from the first liquid storage cavity 12 is absorbed by the liquid storage member 23, and the other part of the liquid substrate is distributed in a space not filled by the liquid substrate in the second liquid storage cavity 22. All or part of the liquid substrate in the second liquid storage cavity 22 is received or retained by the liquid storage member 23, so that when during transportation or static storage of the aerosol generation device 10, the liquid substrate in the second liquid storage cavity 22 is not prone to leakage through the atomization assembly 3. In addition, when using the aerosol generation device 10, the user may obtain an optimal taste experience during an initial stage of inhalation.

[0049] In an embodiment of this application, the liquid storage member 23 may be made of an elastic organic porous material. The liquid storage member 23 may have a hardness or flexibility between generally soft plant-based cotton / non-woven fabrics (Shore hardness less than 20A) and rigid porous ceramics / microporous metals (Shore hardness greater than 80A). This ensures structure stability with minimal expansion after absorption and infiltration of the liquid substrate, while the liquid storage member 23 maintaining a specific hardness, making it easy to fix and retain. In an embodiment of this application, the liquid storage member 23 may be rigid rayon. In an embodiment of this application, the atomization assembly 3 is embedded in the support tube 25. As shown in FIG. 8, the atomization assembly 3 includes a liquid guide member 31 and a heating body 32. The liquid guide member 31 has a liquid guide surface 311 and a heating surface 312 that are arranged opposite to each other. The liquid guide surface 311 is arranged opposite to the liquid storage member 23, and is in fluid communication with the second liquid storage cavity 22. The liquid guide member 31 guides the liquid substrate from the liquid guide surface 311 to the heating surface 312. One side of the heating surface 312 is an atomization cavity 33. The liquid substrate is heated by the heating body 32 on the heating surface 312 and atomized, to generate the aerosol to enter the atomization cavity 33. The support tube 25 is connected to the air tube 13 by an interference fit, so that the aerosol generated by heating the liquid substrate on the heating surface 312 of the liquid guide member 31 may enter the air tube 13 from the atomization cavity 33, to be inhaled by the user. The support tube 25 is further provided with a liquid guide port 251. The liquid guide port 251 is in fluid communication with the second liquid storage cavity 22 and the liquid guide member 31. The liquid substrate in the second liquid storage cavity 22 may enter the liquid guide member 31 through the liquid guide port 251.

[0050] In an embodiment of this application, the liquid guide member 31 of the atomization assembly 3 extends in the support tube 25 along an axial direction of the support tube 25, and the heating body 32 is adhered to the heating surface 312 of the liquid guide member 31, for example, the heating body 32 may be integrated on the surface of the liquid guide member 31 in manners such as printing, deposition, sintering, and physical assembly. In an embodiment of this application, the heating body 32 is a heating mesh, and the liquid guide member 31 is made of porous ceramic.

[0051] In an embodiment of this application, the atomization assembly 3 further includes a conductive pin 34, the heating body 32 is electrically connected to a battery assembly 7 and a circuit board assembly 8 of the aerosol generation device 10 through the conductive pin 34, the battery assembly 7 is configured to provide electric energy for the aerosol generation device 10, and the circuit board assembly 8 may control a current and a voltage provided by the battery assembly 7 to the atomization assembly 3, and control a heating state of the atomization assembly 3. The heating body 32 includes a first heating body 321 and a second heating body 322. Heating states of the first heating body 321 and the second heating body 322 are controlled through the circuit board assembly 8. For example, the first heating body 321 and the second heating body 322 may be heated simultaneously, so that the liquid substrate on the heating surface 312 is atomized more quickly. Only one of the first heating body 321 or the second heating body 322 may be in the heating state, to avoid dry heating caused by an excessively high heating speed of the heating body 32. The first heating body 321 and the second heating body 322 are separately heated during an initial stage of user inhalation, heated together during a middle stage, and separately heated during a later stage, to avoid dry heating of the heating body 32. In another embodiment, operating states of the first heating body 321 and the second heating body 322 may also be set based on a specific situation.

[0052] In an embodiment of this application, as shown in FIG. 1 to FIG. 5, the liquid storage device 1 includes a first valve body 4, the first valve body 4 is located between the first liquid storage cavity 12 and the second liquid storage cavity 22, the first valve body 4 includes a sealing portion 41 and a liquid guide column 42, the sealing portion 41 is configured to separate the first liquid storage cavity 12 from the second liquid storage cavity 22, and the liquid guide column 42 is provided with a liquid guide hole 43. The liquid storage device 1 includes at least one liquid guide column 42 extending outward from the first liquid storage cavity 12. The liquid guide column 42 is hollow and provided with at least one liquid guide hole 43. When the first housing 11 is in the second position, the liquid guide column 42 is at least partially inserted into the second liquid storage cavity 22, enabling the liquid guide hole 43 to communicate with the second liquid storage cavity 22. The liquid storage device 1 further includes a first sealing member 41 movably connected to the liquid guide column 42. The first sealing member 41 closes the liquid guide hole when the first housing 11 is in the first position. The liquid guide hole 43 may be for the liquid substrate in the first liquid storage cavity 12 to flow into the second liquid storage cavity 22. In an embodiment of this application, the first valve body 4 is clamped between the first housing 11 and the air tube 13, the first valve body 4 is provided with a first air vent 44, and the air tube 13 is in gas communication with the atomization cavity 33 through the first air vent 44. In an embodiment of this application, the first housing 11 and the second housing 12 are substantially cylindrical, the first liquid storage cavity 12 and the second liquid storage cavity 22 are also substantially cylindrical, and a projection of the sealing portion 41 of the first valve body 4 on an axial direction of the aerosol generation device 10 is substantially annular. In an embodiment of this application, the liquid guide column 42 is a hollow cylindrical body protruding from the sealing portion 41, the liquid guide column 42 has a liquid guide cavity 421, the liquid guide cavity 421 is in fluid communication with the first liquid storage cavity 12, and the liquid guide cavity 421 is filled with the liquid substrate. The liquid guide cavity 421 may be in fluid communication with the second liquid storage cavity through the liquid guide hole 43. When the liquid guide hole 43 is closed, the liquid substrate in the liquid guide cavity 421 is prevented from entering the second liquid storage cavity 22. When the liquid guide hole 43 is open, the liquid substrate in the liquid guide cavity 421 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23.

[0053] In an embodiment of this application, there may be a plurality of liquid guide columns 42, and the number of liquid guide holes 43 corresponds to the number of liquid guide columns 42. In an embodiment of this application, the quantity of liquid guide columns 42 is two, and the quantity of liquid guide holes 43 is also two. In another embodiment of this application, the quantity of liquid guide columns 42 may be three, and the quantity of liquid guide holes 43 is also three. In another embodiment of this application, the quantity of liquid guide columns 42 may be four, and the quantity of liquid guide holes 43 is also four. In an embodiment of this application, the quantity of liquid guide columns 42 is two. When the liquid substrate in the liquid guide hole 43 of one of the liquid guide columns 42 enters the second liquid storage cavity 22 from the liquid guide cavity 421, air pressure in the first liquid storage cavity 12 decreases. In this case, air in the second liquid storage cavity 22 may enter the first liquid storage cavity 12 through the liquid guide hole 43 of the other liquid guide column 42, to prevent the liquid substrate in the first liquid storage cavity 12 from failing to enter the second liquid storage cavity 22 due to the decrease in air pressure.

[0054] In an embodiment of this application, the liquid guide hole 43 is provided on a side wall of the liquid guide column 42. In an embodiment of this application, an aperture of the liquid guide hole 43 is smaller than an inner diameter of the hollow part of the liquid guide column 42. The aperture of the liquid guide hole 43 is small than the inner diameter of the hollow part of the liquid guide column 42, which slows down a speed at which the liquid substrate flows out of the hollow part of the liquid guide column 42, thereby preventing leakage of the liquid substrate from the atomization assembly 3 after excessive liquid substrate is retained in the liquid storage member 23 of the second liquid storage cavity 22.

[0055] In an embodiment of this application, the aperture or a diameter of the liquid guide hole 43 is in a range of 0.5 mm to 1.5 mm. In an embodiment of this application, the shape of the liquid guide hole 43 is circular, elongated, or other shaped opening. The aperture or the diameter of the liquid guide hole 43 is in a range of 0.5 mm to 1.5 mm, enabling the liquid guide hole 43 to have a capillarity effect. When the aerosol generation device 10 is inhaled by the user, the air pressure in the second liquid storage cavity 22 decreases, while air pressure in the first liquid storage cavity 12 remains unchanged, so that the liquid substrate in the first liquid storage cavity 12 enters the second liquid storage cavity 22 through the first valve body 4. When the aerosol generation device 10 is not in operation, the air pressure in the first liquid storage cavity 12 and the air pressure in the second liquid storage cavity 22 remain balanced. The liquid guide hole 43 has a capillarity effect on the liquid substrate therein, and the liquid substrate is retained in the liquid guide hole 43, to prevent the liquid substrate from continuously entering the second liquid storage cavity 22 when the aerosol generation device 10 is not in operation, thereby preventing leakage of the liquid substrate through the atomization assembly 3. In an embodiment of this application, the aperture or the diameter of the liquid guide hole may be 0.5 mm, 0.8 mm, 1.0 mm, 1.2 mm, or 15 mm.

[0056] In an embodiment of this application, a distance between an outer side wall of the liquid guide column 42 and an inner side wall of the holder 24 is in a range of 0.1 mm to 1.0 mm. In this case, there is also a capillarity effect between the outer side wall of the liquid guide column 42 and the holder 24. When the aerosol generation device 10 is inhaled by the user, the air pressure in the second liquid storage cavity 22 decreases, while the air pressure in the first liquid storage cavity 12 remains unchanged, so that the liquid substrate in the first liquid storage cavity 12 enters the second liquid storage cavity 22 through the first valve body 4. When the aerosol generation device 10 is not in operation, the air pressure in the first liquid storage cavity 12 and the air pressure in the second liquid storage cavity 22 remain balanced. The outer side wall of the liquid guide column 42 and the holder 24 have a capillarity effect on the liquid substrate therein. The liquid substrate is retained between the outer side wall of the liquid guide column 42 and the holder 24, to prevent the liquid substrate from continuously entering the second liquid storage cavity 22 when the aerosol generation device 10 is not in operation, thereby preventing leakage of the liquid substrate through the atomization assembly 3. In an embodiment of this application, a distance between the outer side wall of the liquid guide column 42 and the inner side wall of the holder 24 may be 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, or 1.0 mm.

[0057] In an embodiment of this application, a distance between the outer side wall of the liquid guide column 42 and an outer side wall of the liquid storage member 23 is in a range of 0.1 mm to 1.0 mm. Similarly, there is a capillarity effect between the outer side wall of the liquid guide column 42 and the outer side wall of the liquid storage member 23. When the aerosol generation device 10 is inhaled by the user, the air pressure in the second liquid storage cavity 22 decreases, while the air pressure in the first liquid storage cavity 12 remains unchanged, so that the liquid substrate in the first liquid storage cavity 12 enters the second liquid storage cavity 22 through the first valve body 4. When the aerosol generation device 10 is not in operation, the air pressure in the first liquid storage cavity 12 and the air pressure in the second liquid storage cavity 22 remain balanced. The outer side wall of the liquid guide column 42 and the outer side wall of the liquid storage member 23 have a capillarity effect on the liquid substrate therein. The liquid substrate is retained between the outer side wall of the liquid guide column 42 and the outer side wall of the liquid storage member 23, to prevent the liquid substrate from continuously entering the second liquid storage cavity 22 when the aerosol generation device 10 is not in operation, thereby preventing leakage of the liquid substrate through the atomization assembly 3. In an embodiment of this application, a distance between the outer side wall of the liquid guide column 42 and the outer side wall of the liquid storage member 23 may be 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, or 1.0 mm.

[0058] In an embodiment of this application, the sealing portion 41 and the liquid guide column 42 of the first valve body 4 are integrally formed, which is beneficial to improving sealing performance of the liquid guide cavity 421, so that the first liquid storage cavity 12 and the second liquid storage cavity 22 are in fluid communication only when the liquid guide hole 43 is open, and the liquid substrate in the liquid guide cavity 421 is prevented from entering the second liquid storage cavity 22 when the liquid guide hole 43 is closed.

[0059] In an embodiment of this application, the holder 24 is provided in the first housing 11, the holder 24 is defined with the second liquid storage cavity 22, and the holder 24 is provided with an insertion hole 241 for the liquid guide column 42 to insert. In an embodiment of this application, the holder 24 further is defined with a liquid flow cavity 242 in communication with the insertion hole 241, the liquid guide column 42 can be partially inserted into the liquid flow cavity 242, and the liquid flow cavity 242 is in fluid communication with the second liquid storage cavity 22.

[0060] In an embodiment of this application, the holder 24 is defined with a gas cavity 246, the device body 2 includes the support tube 25, the support tube 25 is embedded in a mounting hole 243 of the holder 24, an inner side wall of the mounting hole 243 is provided with a first air channel 244, and the gas cavity 246 communicates with atmospheric pressure through the first air channel 244. When the user uses the aerosol generation device 10 for inhalation, the liquid substrate in the second liquid storage cavity 22 is consumed. Air pressure in the second liquid storage cavity 22 is less than atmospheric pressure in the air tube 13. Gas in the air tube 13 may enter the gas cavity 246 along the first air channel 244, to balance the air pressure the second liquid storage cavity 22 with gas pressure in the air tube 13, thereby ensuring that the liquid storage cavity 22 normally provides the liquid substrate to the atomization assembly 3. In an embodiment of this application, an end surface of the liquid storage member 23 close to the liquid storage device 1 abuts against the holder, and the gas cavity 246 is in gas communication with the first air channel 244 through micro-pores of the liquid storage member 23.

[0061] In an embodiment of this application, the gas cavity 246 includes a first gas cavity 2461 and a second gas cavity 2462 located on both longitudinal sides of the liquid storage member 23, an inner side wall of the holder 24 is provided with a second air channel 245, and the second air channel 245 enables gas communication between the first gas cavity 2461 and the second gas cavity 2462. When the user uses the aerosol generation device 10 for inhalation, the liquid substrate in the second liquid storage cavity 22 is consumed. In this case, air pressure in the first gas cavity 2461 and air pressure in the second gas cavity 2462 decrease, and the gas in the air tube 13 may enter the first gas cavity 2461 or the second gas cavity 2462 along the first air channel 244, to balance the air pressure in the first gas cavity 2461 or the air pressure in the second gas cavity 2462 with the air pressure in the air tube 13. In addition, the air pressure in the first gas cavity 2461 and the air pressure in the second gas cavity 2462 can be balanced through the second air channel 245, so that air pressure on both sides of the liquid storage member 23 is balanced, and a liquid substrate absorbed at both ends of the liquid storage member 23 along a mounting direction of the liquid storage device 1 and the device body 2 may be heated by the atomization assembly 3 to generate the aerosol. In an embodiment of this application, the first gas cavity 2461 is in gas communication with the first air channel 244, and the first gas cavity 2461 is in gas communication with the second gas cavity 2462 through the second air channel 245.

[0062] In an embodiment of this application, the liquid storage member 23 is filled in a partial space of the second liquid storage cavity 22, and when the liquid guide hole 43 is closed or open, the liquid guide column 42 is not in contact with the liquid storage member 23. In an embodiment of this application, the liquid storage member 23 is filled in a partial space of the second liquid storage cavity 22, when the liquid guide hole 43 is closed, the liquid guide column 42 is not in contact with the liquid storage member 23, and when the liquid guide hole 43 is open, the liquid guide column 42 is just in contact with the liquid storage member 23. In an embodiment of this application, the liquid storage member 23 is provided with a groove 231, the liquid storage member 23 is filled in a partial space of the second liquid storage cavity 22, when the liquid guide hole 43 is closed, the liquid guide column 42 is not in contact with the liquid storage member 23, and when the liquid guide hole 43 is open, the liquid guide column 42 is located in the groove 231 of the liquid storage member 23. In an embodiment of this application, the first valve body 4 is in contact with the liquid storage member 23, the liquid storage member 23 is provided in the groove 231, the liquid storage member 23 is filled in the entire space of the second liquid storage cavity 22, when the liquid guide hole 43 is closed, the liquid guide column 42 is in contact with the liquid storage member 23, and when the liquid guide hole 43 is open, the liquid guide column 42 presses the liquid storage member 23 to form the groove 231, and the liquid guide column 42 is located in the groove 231 of the liquid storage member 23. In an embodiment of this application, the liquid storage member 23 includes a first liquid storage member and a second liquid storage member, and when the liquid guide hole 43 is in an open state, the liquid guide column 42 is located between the first liquid storage member and the second liquid storage member.

[0063] In an embodiment of this application, a tail end of the liquid guide column 42 is tapered, facilitating the insertion of the liquid guide column 42 into the liquid storage member 23.

[0064] In an embodiment of this application, the liquid storage member 23 completely fills the second liquid storage cavity 22, and after entering the second liquid storage cavity 22, all the liquid substrate in the first liquid storage cavity 12 is absorbed by the liquid storage member 23. In an embodiment of this application, one part of the liquid substrate entering the second liquid storage cavity 22 from the first liquid storage cavity 12 is absorbed by the liquid storage member 23, and the other part of the liquid substrate is distributed in a space not filled by the liquid storage member 23 in the second liquid storage cavity 22.

[0065] In an embodiment of this application, a first sealing member 51 is arranged around the liquid guide column 42, and the first sealing member 52 is movably connected to the liquid guide column 42. In an embodiment of this application, as shown in FIG. 6 and FIG. 7, the first sealing member 51 has a first sealing sub-portion 511 and a second sealing sub-portion 512; the liquid guide hole 43 has a closed state and an open state; when the liquid guide hole 43 is in the closed state, the liquid guide hole 43 is located between the first sealing sub-portion 511 and the second sealing sub-portion 512; and when the liquid guide hole 43 is in the open state, the second sealing sub-portion 512 is located between the first sealing sub-portion 511 and the liquid guide hole 43. In an embodiment of this application, the first sealing member 51 is nested in the holder 24, the holder 24 is clamped in the second housing 12, the first valve body 4 is clamped in the air tube 13, and the relative movement of the first housing 11 and the second housing 12 may drive the air tube 13 and the holder 24 to move relative to each other, to drive the first valve body 4 and the first sealing member 51 to move relative to each other. In an embodiment of this application, the first sealing member 51 is provided with a second air vent 513, the second air vent 513 is in gas communication with the first air vent 44, and the first air vent 513 is a through-hole located at the center of the first sealing member 51. In an embodiment of this application, the first sealing member 51 further includes a first sealing member mounting hole 514, the first sealing member mounting hole 514 may be for the liquid guide column 42 to pass through, and the number of first sealing member mounting holes 514 corresponds to the quantity of liquid guide columns 42.

[0066] In an embodiment of this application, when the second sealing sub-portion 512 is located between the first sealing sub-portion 511 and the liquid guide hole 43, the liquid guide hole 43 is in the open state, the fluid channel 123 is open, and the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23. When the liquid guide hole 43 is located between the first sealing sub-portion 511 and the second sealing sub-portion 512, the liquid guide hole 43 is in the closed state, the fluid channel 123 is closed, and the liquid substrate in the first liquid storage cavity 12 is prevented from entering the second liquid storage cavity 22.

[0067] In an embodiment of this application, a second sealing member 52 is further arranged around the sealing portion 41 of the first valve body 4. The second sealing member 52 is located between the first valve body 4 and the air tube 13, enabling excellent sealing performance between the first valve body and the air tube 13, and the movement of the air tube 13 may drive the first valve body 4 to move through the second sealing member 52.

[0068] In an embodiment of this application, the first sealing member 51 and the second sealing member 52 are materials having excellent expansion performance, for example, silicone. The first sealing member 51 is nested in and interference-fitted with the holder 24, and the second sealing member 52 is interference-fitted between the first valve body 4 and the air tube 13.

[0069] In an embodiment of this application, as shown in FIG. 4 and FIG. 5, the first housing 11 has a first buckle 111, the second housing 12 has a first slot 121 and a second slot 122, and when the first buckle 111 is engaged in the first slot 111, the housing 1 is in the first position, the liquid guide hole 43 is located between the first sealing sub-portion 511 and the second sealing sub-portion 512, the liquid guide hole 43 is in the closed state, the fluid channel 123 is closed, the liquid substrate is prevented from entering the second liquid storage cavity 22, and the aerosol generation device 10 is in a pre-mounting state. When the first buckle Illis engaged in the second slot 122, the housing 1 is in the second position, the second sealing sub-portion 512 is located between the first sealing sub-portion 511 and the liquid guide hole 43, the liquid guide hole 43 is in the open state, the fluid channel 123 is open, the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23, and the aerosol generation device 10 is in an assembled state. The user may change the position of the housing 1 by changing the position of the first buckle 111. In an embodiment of this application, a guide rail structure is provided between the liquid storage device 1 and the device body 2, the device body 2 is provided with a slide rail, and the liquid storage device 1 is provided with a slider, so that the liquid storage device 1 is directionally mounted to the device body 2, enabling the liquid guide column 42 to be mounted in alignment with the insertion hole 241 of the holder 24. In an embodiment of this application, the device body 2 is provided with a slider, and the liquid storage device 1 is provided with a slide rail, so that the liquid storage device 1 is directionally mounted to the device body 2, enabling the liquid guide column 42 to be mounted in alignment with the insertion hole 241 of the holder 24.

[0070] In an embodiment of this application, a sealing valve body 6 is provided between the first liquid storage cavity 12 and the second liquid storage cavity 22, the sealing valve body 6 includes a connection portion 61 and a blocking portion 62, the blocking portion 62 separates the first liquid storage cavity 12 from the second liquid storage cavity 22, and the connection portion 61 may be driven by the first housing 11 or the second housing 21 to pull the blocking portion 62 to communicate the first liquid storage cavity 12 with the second liquid storage cavity 22.

[0071] In an embodiment of this application, as shown in FIG. 11 and FIG. 12, the holder 24 is provided with the fluid channel 123, a shape of an opening of the fluid channel 123 facing the direction of the first liquid storage cavity 12 matches a shape of the blocking portion 62, and a projection area of an opening of the fluid channel 123 facing the direction of the second liquid storage cavity 22 in an axial direction of the aerosol generation device 10 is smaller than a projection area of the opening of the fluid channel 123 facing the direction of the first liquid storage cavity in the axial direction of the aerosol generation device 10, so that the liquid substrate can be prevented from entering the second liquid storage cavity 22 when the blocking portion 62 is located in the fluid channel 123. In an embodiment of this application, the fluid channel 123 is funnel-shaped. In an embodiment of this application, the fluid channel 123 is formed by two sections with different diameters. In an embodiment of this application, a crosssectional area of one side of the blocking portion 62 facing the fluid channel 123 is smaller than a cross-sectional area of one side away from the fluid channel 123.

[0072] In an embodiment of this application, the first housing 11 has a second buckle 112, and the second buckle 112 may be in contact with the connection portion 61, to press the connection portion 61 to deform, and pull the blocking portion 62 to communicate the first liquid storage cavity 12 with the second liquid storage cavity 22.

[0073] In an embodiment of this application, when the liquid substrate in the liquid storage member 23 in the second liquid storage cavity 22 is consumed or is low in content, the user may change the relative positions of the first housing 11 and the second housing 12, enabling the second buckle 112 to come into contact with the connection portion 61, to press the connection portion 61 and pull the blocking portion 62 to open the fluid channel 123, so that the liquid substrate in the first liquid storage cavity 12 is allowed to enter the second liquid storage cavity 22 to be absorbed by the liquid storage member 23. When the liquid substrate in the liquid storage member 23 in the second liquid storage cavity 22 is saturated, the user changes the relative positions of the first housing 11 and the second housing 12, enabling the second buckle 112 to be away from the connection portion 61, to restore the connection portion 61 its original shape, so that the blocking portion 62 closes the fluid channel 123 again, and the liquid substrate is prevented from entering the second liquid storage cavity 22.

[0074] In an embodiment of this application, the sealing valve body 6 is made of a material with good elasticity, such as silicone, the connection portion 61 and the blocking portion 62 of the sealing valve body 6 are integrally formed, and the connection portion 61 is elastic and may be deformed and restored to its original shape.

[0075] It should be noted that, the specification of this application and the accompanying drawings thereof illustrate preferred embodiments of this application, but this application is not limited to the embodiments described in the specification. Further, a person of ordinary skill in the art may make improvements or variations according to the foregoing descriptions, and such improvements and variations shall all fall within the protection scope of the appended claims of this application.

Claims

1. An aerosol generation device, comprising:a liquid storage device, comprising a first housing, wherein the first housing is defined with a first liquid storage cavity configured to store a liquid substrate;a device body, comprising a second housing, wherein the second housing is defined with a second liquid storage cavity configured to store a liquid substrate;a liquid storage member, filled in at least a partial space of the second liquid storage cavity, and configured to receive and retain the liquid substrate from the first liquid storage cavity; andan atomization assembly, arranged in the second housing and adjacent to the second liquid storage cavity, and configured to atomize the liquid substrate retained in the liquid storage member, to generate an aerosol, whereina fluid channel communicating the first liquid storage cavity with the second liquid storage cavity is provided between the first liquid storage cavity and the second liquid storage cavity, and the fluid channel is configured with an open state and a closed state;when the fluid channel is in the closed state, the liquid substrate in the first liquid storage cavity is prevented from entering the second liquid storage cavity; andwhen the fluid channel is in the open state, the liquid substrate in the first liquid storage cavity is allowed to enter the second liquid storage cavity to be absorbed by the liquid storage member.

2. The aerosol generation device according to claim 1, wherein:the first housing has a first position and a second position relative to the second housing;when the first housing is in the first position relative to the second housing, the fluid channel is closed; andwhen the first housing is in the second position relative to the second housing, the fluid channel is opened, and the liquid substrate in the first liquid storage cavity enters the second liquid storage cavity.

3. The aerosol generation device according to claim 2, wherein:the liquid storage device further comprises at least one liquid guide column extending outward from the first liquid storage cavity;the liquid guide column is hollow and provided with at least one liquid guide hole; andwhen the first housing is in the second position, the liquid guide column is at least partially inserted into the second liquid storage cavity, enabling the liquid guide hole to communicate with the second liquid storage cavity.

4. The aerosol generation device according to claim 3, further comprising a first sealing member movably connected to the liquid guide column, wherein the first sealing member closesthe liquid guide hole when the first housing is in the first position.

5. The aerosol generation device according to claim 4, wherein:the first sealing member has a first sealing sub-portion and a second sealing sub-portion;the liquid guide hole has a closed state and an open state;when the liquid guide hole is in the closed state, the liquid guide hole is located between the first sealing sub-portion and the second sealing sub-portion; andwhen the liquid guide hole is in the open state, the second sealing sub-portion is located between the first sealing sub-portion and the liquid guide hole.

6. The aerosol generation device according to claim 3, wherein an aperture of the liquid guide hole is in a range of 0.5 mm to 1.5 mm.

7. The aerosol generation device according to claim 3, wherein the at least one liquid guide column comprises two liquid guide columns.

8. The aerosol generation device according to claim 3, wherein the liquid guide hole is provided on a side wall of the liquid guide column.

9. The aerosol generation device according to claim 3, wherein an aperture of the liquid guide hole is smaller than an inner diameter of the hollow part of the liquid guide column.

10. The aerosol generation device according to claim 3, wherein:a holder is provided in the second housing, the second liquid storage cavity defining in the holder; andthe holder is provided with an insertion hole for the liquid guide column to insert.

11. The aerosol generation device according to claim 10, wherein:the holder is further defined with a liquid flow cavity in communication with the insertion hole, andthe liquid guide column is partially inserted into the liquid flow cavity.

12. The aerosol generation device according to claim 11, wherein an opening of one end of the liquid flow cavity is blocked by the liquid storage member.

13. The aerosol generation device according to claim 11, wherein an outer side wall of the liquid guide column and an inner side wall of the liquid flow cavity maintain a distance between 0.1 mm to 1.0 mm.

14. The aerosol generation device according to claim 10, wherein:the holder is defined with a gas cavity;the device body comprises a support tube, and the support tube is embedded in a mounting hole of the holder;an inner side wall of the mounting hole is provided with a first air channel; andthe gas cavity communicates with atmospheric pressure through the first air channel.

15. The aerosol generation device according to claim 14, wherein:the gas cavity comprises a first gas cavity and a second gas cavity located on both longitudinal sides of the liquid storage member;an inner side wall of the holder is provided with a second air channel; andthe second air channel enables gas communication between the first gas cavity and the second gas cavity.

16. The aerosol generation device according to claim 2, wherein:the first housing has a first buckle, and the second housing has a first slot and a second slot;when the first buckle is engaged in the first slot, the first housing is in the first position; andwhen the first buckle is engaged in the second slot, the first housing is in the second position.

17. The aerosol generation device according to claim 1, wherein:a sealing valve body is provided between the first liquid storage cavity and the second liquid storage cavity;the sealing valve body comprises a connection portion and a blocking portion;the blocking portion separates the first liquid storage cavity from the second liquid storage cavity; andthe connection portion is driven by the first housing or the second housing to pull the blocking portion to communicate the first liquid storage cavity with the second liquid storage cavity.

18. The aerosol generation device according to claim 3, wherein the liquid storage member is provided with a groove, and the liquid guide column is inserted into the groove of the liquid storage member.

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