Atomizer and aerosol generating device

Abstract

The embodiment of the utility model provides an atomizer and an aerosol generating device. The atomizer comprises a liquid storage space, a switch unit, an atomizing base assembly and an atomizing core. The liquid storage space comprises a standby bin and a lower liquid bin which are both used for storing aerosol generating matrixes. The switch unit comprises an open state and a closed state, in the open state, the standby bin is in liquid communication with the lower liquid bin, and in the closed state, the standby bin is not in liquid communication with the lower liquid bin. The atomization base assembly is provided with an atomization cavity. The atomizing core is arranged in the atomizing cavity, and the lower liquid bin is in liquid communication with the atomizing core. The switch unit comprises an elastic reset part and a suction part with an air outlet channel, the air outlet channel is used for discharging aerosol in the atomization cavity, and the suction part can move under the action of external force to be switched from a closed state to an open state and enables the elastic reset part to generate elastic deformation; and when the external force is removed, the suction piece is reset under the elastic force of the elastic reset piece. According to the atomizer, the problem of liquid leakage is solved, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an atomizer and an aerosol generating device. Background Art

[0002] This section is intended to provide a background or context to the embodiments described in this application. No description herein is admitted to be prior art by inclusion in this section.

[0003] An aerosol generating device is an electronic transmission system that controls the working state and smoke output through control circuits and atomizing elements for user use.

[0004] The existing atomization chamber and liquid storage space are connected by a liquid inlet channel, and the liquid storage space is connected to the outside through a ventilation channel to maintain the internal pressure balance of the liquid storage space. However, when the ambient temperature rises, due to the expansion of the air in the liquid storage space, the aerosol generating matrix in the liquid storage space may be squeezed out through the ventilation channel and the liquid inlet channel, thereby causing leakage and affecting the user experience. Utility Model Content

[0005] In view of this, the embodiments of the present application hope to provide a nebulizer and an aerosol generating device to improve the problem of liquid leakage and improve the user experience.

[0006] To achieve the above object, one aspect of an embodiment of the present application provides an atomizer, comprising:

[0007] A liquid storage space, including a spare tank and a lower liquid tank, both of which are used to store aerosol generating substrates;

[0008] The switch unit comprises an open state and a closed state, in which the standby tank is in liquid communication with the lower liquid tank in the open state, and in which the standby tank is in liquid communication with the lower liquid tank in the closed state;

[0009] An atomizing seat assembly is provided with an atomizing chamber;

[0010] An atomizing core is disposed in the atomizing chamber, the lower liquid reservoir is in liquid communication with the atomizing core, and the atomizing core is used to atomize an aerosol generating matrix to generate an aerosol;

[0011] In which, the switch unit includes an elastic return member and a suction member with an air outlet channel, the air outlet channel is used to discharge the aerosol in the atomization chamber, the suction member can move under the action of external force, switch from the closed state to the open state, and cause the elastic return member to produce elastic deformation; when the external force is removed, the suction member is reset under the elastic force of the elastic return member.

[0012] In some embodiments, the suction member can rotate under the action of an external force, or move along the axial direction of the atomizer, so that the switch unit is switched from the closed state to the open state.

[0013] In some embodiments, the standby tank and the lower liquid tank are arranged along the height direction of the atomizer.

[0014] In some embodiments, the standby tank and the lower liquid tank are arranged circumferentially along the center of the atomizer.

[0015] In some embodiments, the lower liquid tank is located in the spare tank.

[0016] In some embodiments, the atomizer further comprises a shell having a cavity, wherein at least a portion of the atomizer seat assembly is disposed in the cavity and defines the liquid storage space between the atomizer seat assembly and the cavity wall of the cavity; one end of the elastic return member is connected to the suction member, and the other end is connected to the shell.

[0017] In some embodiments, one of the suction member and the housing is provided with a sliding groove, and the other one is provided with a sliding portion, and the sliding portion is rotatably disposed in the sliding groove.

[0018] In some embodiments, the atomizer further comprises a partition and a housing having a cavity, at least a portion of the atomizer seat assembly is disposed in the cavity, and the liquid storage space is defined between the atomizer seat assembly and the cavity wall of the cavity;

[0019] The partition is arranged in the liquid storage space, and divides the liquid storage space into the standby bin and the lower liquid bin.

[0020] In some embodiments, a first via hole is provided on the partition, and a second via hole is provided on the switch unit. In the open state, the first via hole is liquid-connected with the second via hole, and in the closed state, the first via hole is liquid-unconnected with the second via hole.

[0021] In some embodiments, the suction member includes a switch member and an air outlet pipe having the air outlet channel, the switch member is provided with the second through hole, the switch member is arranged on the outer periphery of the air outlet pipe, and the air outlet pipe can drive the switch member to rotate relative to the atomizer seat assembly so that the switch unit switches between the closed state and the open state.

[0022] In some embodiments, the elastic return member is a torsion spring, which is sleeved on the air outlet pipe, one end of which is connected to the suction member, and the other end of which is connected to the housing; or

[0023] The elastic return member is a compression spring or a tension spring.

[0024] Another aspect of the embodiments of the present application provides an aerosol generating device, comprising a power supply assembly and the above-mentioned atomizer, wherein the power supply assembly is electrically connected to the atomizer.

[0025] The atomizer provided in the embodiment of the present application sets the liquid storage space as a spare tank and a lower liquid tank, the spare tank is used to store the aerosol generating matrix to be used, the lower liquid tank is used to store the aerosol generating matrix in use, the atomizing core is connected to the liquid of the lower liquid tank, and is not connected to the liquid of the spare tank, and the spare tank and the lower liquid tank are selectively connected through the switch unit, so that the aerosol generating matrix in the lower liquid tank can be diverted to the atomizing core through the liquid inlet channel to be atomized and generate aerosol, and after the aerosol generating matrix in the lower liquid tank is used up, the switch unit can be controlled to be in an open state so that the aerosol generating matrix in the spare tank can be injected into the lower liquid tank. In other words, by setting the liquid storage space as a spare tank and a lower liquid tank, and the spare tank is not connected to the atomizing core liquid during use, it is conducive to increasing the capacity of the atomizer, and the air volume in the lower liquid tank does not increase, thereby improving the problem of liquid leakage and enhancing the user experience.

[0026] In addition, when the switch unit is in the closed state, the liquid between the spare tank and the lower liquid tank is not connected. While reducing the risk of leakage, it is beneficial for the aerosol generation matrix in the spare tank to always be kept fresh, thereby improving the user experience.

[0027] Furthermore, the switch unit is provided with an elastic reset member and a suction member. By providing the elastic reset member, when it is necessary to inject liquid into the lower liquid tank, an external force is applied to the suction member of the switch unit, so that the switch unit is switched from a closed state to an open state under the action of the external force, and the elastic reset member is elastically deformed. At this time, the standby tank and the lower liquid tank are connected by liquid, so that the aerosol-generating matrix in the standby tank is injected into the lower liquid tank. When the external force is cancelled, the suction member is reset under the elastic force of the elastic reset member, that is, the switch unit is switched from an open state to a closed state. At this time, the standby tank and the lower liquid tank are not connected by liquid. In other words, by providing the elastic reset member, manual reset is not required, which improves the user experience. At the same time, it can avoid the switch unit being in an open state due to forgetting to reset, that is, the standby tank and the lower liquid tank are in a liquid connected state, thereby increasing the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the atomizer in the first embodiment of the present application;

[0029] Figure 2 for Figure 1 The section view of Figure 1 The AA direction and the BB direction are both vertical;

[0030] Figure 3 for Figure 1 Sectional view in the AA direction;

[0031] Figure 4 for Figure 1 Cross-sectional view in the BB direction;

[0032] Figure 5 This is a cross-sectional view of the atomizer in the second embodiment of the present application, and the cutting direction is Figure 1 The middle BB has the same direction;

[0033] Figure 6 This is a schematic diagram of the connection structure between the air outlet pipe and the switch member in some embodiments of the present application;

[0034] Figure 7 This is a schematic diagram of the structure of the separation body of some embodiments of the present application;

[0035] Figure 8 This is a cross-sectional view of the atomizer in the third embodiment of the present application, and the cutting direction is Figure 1 The middle BB has the same direction;

[0036] Fig. 9 This is a cross-sectional view of the atomizer in the fourth embodiment of the present application, and the cutting direction is Figure 2 The cutting direction is the same.

[0037] Description of Reference Numerals

[0038] 10. atomizer core; 20. atomizer seat assembly; 21. atomizer seat; 21a. liquid inlet channel; 21b. atomizer chamber; 22. second sealing member; 30. switch unit; 31. switch member; 31a. second through hole; 32. suction member; 321. air outlet pipe; 321a. air outlet channel; 322. suction part; 322a. sliding part; 40. housing; 40a. cavity; 41. connecting pipe; 41a , sliding groove; 50, partition; 50a, accommodating groove; 50b, first through hole; 50c, limiting groove; 51, partition body; 52, first sealing member; 60, elastic reset member; 61, torsion spring; 611, first force arm; 612, second force arm; 62, tension spring; 70, third sealing member; 100, atomizer; 100a, liquid storage space; 100b, spare bin; 100c, lower liquid bin. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0040] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "top", "bottom" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or position relationship shown in the figure is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. The present application is further described in detail below in conjunction with the drawings and specific embodiments.

[0041] One aspect of an embodiment of the present application provides an aerosol generating device, comprising a power supply assembly and the atomizer 100 provided in any embodiment of the present application.

[0042] The power supply device is mainly used to supply power to the atomizer 100 and control the opening or closing of the entire aerosol generating device, and the atomizer 100 is mainly used to contain an aerosol generating substrate and heat and atomize the aerosol generating substrate after power is turned on. The aerosol generating substrate includes, but is not limited to, materials used for medical treatment, health preservation, health, beauty, and the like.

[0043] In some embodiments, see Figures 1 to 9 , the atomizer 100 and the power supply device can be mechanically and electrically connected together along the axial direction. Furthermore, the atomizer 100 and the power supply device can be connected together in a detachable manner such as a magnetic connection, a threaded connection, a snap connection, etc. The atomizer 100 and the power supply device can be replaced or upgraded separately, reducing the replacement cost and saving user expenses. Of course, in other embodiments, the atomizer 100 and the power supply device can also be connected together in a non-detachable manner.

[0044] In addition, the atomizer 100 and / or the power supply device are not limited to being cylindrical, and may also be in other shapes such as an elliptical column or a square column.

[0045] It should be noted that the specific type of the aerosol generating device provided in the embodiments of the present application is not limited. By way of example, the aerosol generating device may be a medical atomization device, an air humidifier, or an atomization device such as an electronic cigarette.

[0046] Another aspect of the present application provides an atomizer. Figures 1 to 9, including a liquid storage space 100a, a switch unit 30, an atomizer seat assembly 20 and an atomizer core 10 arranged in an atomizer chamber 21b. The liquid storage space 100a includes a spare tank 100b and a lower liquid tank 100c, both of which are used to store an aerosol generating matrix. The switch unit 30 includes an open state and a closed state. In the open state, the spare tank 100b and the lower liquid tank 100c are in liquid communication, and in the closed state, the spare tank 100b and the lower liquid tank 100c are not in liquid communication. The atomizer seat assembly 20 is provided with an atomizer chamber 21b. The lower liquid tank 100c is in liquid communication with the atomizer core 10. The atomizer core 10 is used to atomize the aerosol generating matrix to generate an aerosol. Among them, the switch unit 30 includes an elastic reset member 60 and a suction member 32 having an air outlet channel 321a, the air outlet channel 321a is used to discharge the aerosol in the atomization chamber 21b, and the suction member 32 can move under the action of an external force, switch from a closed state to an open state, and cause the elastic reset member 60 to produce elastic deformation; when the external force is removed, the suction member 32 is reset under the elastic force of the elastic reset member 60.

[0047] The liquid connection between the standby chamber 100b and the lower liquid chamber 100c means that the aerosol generating substrate in the standby chamber 100b can flow into the lower liquid chamber 100c.

[0048] The lower liquid tank 100 c is in liquid communication with the atomizer core 10 , which means that the aerosol-generating substrate in the lower liquid tank 100 c can be directed to the atomizer core 10 .

[0049] The liquid storage space 100a includes a spare chamber 100b and a lower liquid chamber 100c, both of which are used to store aerosol generating substrates. The spare chamber 100b is used to store aerosol generating substrates to be used, and the lower liquid chamber 100c is used to store aerosol generating substrates in use.

[0050] It should be noted that the number of the spare bins 100b is not limited here, and can be one or more. The number of the lower liquid bins 100c is not limited here, and can be one or more.

[0051] In the embodiments of the present application, the plurality refers to a number of two or more.

[0052] It should be noted that the specific shape of the standby tank 100b is not limited here. The specific shape of the lower liquid tank 100c is not limited here. It can be any shape.

[0053] In the open state, the standby chamber 100b and the lower liquid chamber 100c are in liquid communication, that is, in the open state, the aerosol-generating substrate in the standby chamber 100b can be injected into the lower liquid chamber 100c.

[0054] In the closed state, the standby chamber 100b and the lower liquid chamber 100c are not liquid-connected, that is, in the closed state, the aerosol-generating matrix in the standby chamber 100b cannot be injected into the lower liquid chamber 100c, that is, the standby chamber 100b and the lower liquid chamber 100c are independent of each other.

[0055] The lower liquid tank 100c is in liquid communication with the atomizer core 10, that is, the aerosol-generating substrate in the lower liquid tank 100c can be directed to the atomizer core 10 through the liquid inlet channel 21a to be atomized and generate aerosol.

[0056] See also Figures 2 to 3 The atomizing core 10 is disposed in the atomizing chamber 21b. Specifically, the atomizing core 10 is disposed at the extended end of the liquid inlet channel 21a. The liquid inlet channel 21a is used to guide the aerosol generating substrate in the lower liquid tank 100c to the atomizing core 10. The atomizing core 10 is used to absorb and heat the atomized aerosol generating substrate and generate aerosol.

[0057] The atomizing core 10 blocks the flow of the aerosol-generating substrate in the liquid inlet channel 21 a , that is, the aerosol-generating substrate does not flow directly into the atomizing chamber 21 b .

[0058] In the related technology, the liquid storage space needs to be connected to the atmosphere through a ventilation channel to maintain the internal pressure balance of the liquid storage space. When the ambient temperature rises, the air in the liquid storage space begins to expand, which may cause the aerosol-generating matrix in the liquid storage space to be squeezed out through the ventilation channel and the liquid inlet channel, thereby causing leakage. The larger the air volume in the working liquid storage space (i.e., the space connected to the liquid in the atomizer core), the larger the volume of the air that expands after being heated. That is, the larger the cavity volume V0 in the initial equilibrium state, the larger the volume of the air that expands after being heated, and the more serious the leakage. The specific analysis is as follows. In the initial equilibrium state, the relationship between pressure, volume, and temperature is:

[0059] PV0=nRT0

[0060] Where: P is the gas pressure; V0 is the initial gas volume; T0 is the initial temperature;

[0061] When the temperature rises from T0 to T1, the corresponding volume becomes V1. In the new equilibrium state, the relationship between pressure, volume and temperature is:

[0062] PV1=nRT1

[0063] When the temperature rises from T0 to T1, the volume expansion in the new equilibrium state is:

[0064]

[0065] According to the above formula, when the temperature rises from T0 to T1, the volume expansion is proportional to the initial volume V0, that is, the larger the initial volume V0, the larger the volume ΔV of the air after expansion due to heating, and thus the larger the leakage amount.

[0066] The atomizer 100 provided in the embodiment of the present application is configured such that the liquid storage space 100a is configured as a spare tank 100b and a lower liquid tank 100c. The spare tank 100b is used to store the aerosol generating matrix to be used, and the lower liquid tank 100c is used to store the aerosol generating matrix in use. The atomizer core 10 is in liquid communication with the lower liquid tank 100c, but not in liquid communication with the spare tank 100b. The spare tank 100b and the lower liquid tank 100c are selectively connected via a switch unit 30. In this way, the aerosol generating matrix in the lower liquid tank 100c can be guided to the atomizer core 10 through the liquid inlet channel 21a to be atomized and generate aerosol. After the aerosol generating matrix in the lower liquid tank 100c is used up, the switch unit 30 can be controlled to be in an open state so that the aerosol generating matrix in the spare tank 100b can be injected into the lower liquid tank 100c. That is to say, by setting the liquid storage space 100a as a spare tank 100b and a lower liquid tank 100c, and the spare tank 100b is not connected to the liquid of the atomizer core 10 during use, it is beneficial to increase the capacity of the atomizer 100, while the air volume in the lower liquid tank 100c does not increase, thereby improving the leakage problem and enhancing the user experience.

[0067] Furthermore, the switch unit 30 is provided with an elastic reset member 60 and a suction member 32. By providing the elastic reset member 60, when it is necessary to inject liquid into the lower liquid tank 100c, an external force is applied to the suction member 32 of the switch unit 30, so that the switch unit 30 is switched from a closed state to an open state under the action of the external force, and the elastic reset member 60 is elastically deformed. At this time, the standby tank 100b and the lower liquid tank 100c are in liquid communication, so that the aerosol-generating matrix in the standby tank 100b is injected into the lower liquid tank 100c. When the external force is cancelled, the suction member 32 is reset under the elastic force of the elastic reset member 60, that is, the switch unit 30 is switched from an open state to a closed state, and at this time, the standby tank 100b and the lower liquid tank 100c are not in liquid communication. That is to say, by providing the elastic reset member 60, manual reset is not required, thereby improving the user experience. At the same time, it can avoid the switch unit 30 being in the open state all the time due to forgetting to reset, that is, the spare tank 100b and the lower liquid tank 100c are in the liquid connected state at the same time, thereby increasing the risk of leakage.

[0068] In the related art, the taste of single-chamber products with large liquid injection volume seriously decays in the middle and back parts, and the user experience is poor.

[0069] In the atomizer 100 provided in the embodiment of the present application, when the switch unit 30 is in the closed state, the liquid between the spare chamber 100b and the lower liquid chamber 100c is not connected, which reduces the risk of leakage and helps the aerosol generating matrix in the spare chamber 100b to always be kept fresh, thereby improving the user experience.

[0070] It should be noted that the movement mode of the suction member 32 under the action of external force is not limited here.

[0071] For example, in some embodiments, the suction member 32 can be rotated under the action of an external force to switch the switch unit 30 from a closed state to an open state.

[0072] In some other embodiments, the suction member 32 can move along the axial direction of the atomizer 100 under the action of an external force, so that the switch unit 30 is switched from the closed state to the open state.

[0073] It should be noted that the arrangement of the spare tank 100b and the lower liquid tank 100c is not limited here.

[0074] In some embodiments, see Figures 2 to 3 , the standby bin 100b and the lower liquid bin 100c are arranged along the height direction of the atomizer 100. Exemplarily, the standby bin 100b is located above the lower liquid bin 100c, and the lower liquid bin 100c is located between the standby bin 100b and the atomizing core 10. In this way, the aerosol-generating substrate in the standby bin 100b is facilitated to flow into the lower liquid bin 100c under the action of gravity and pressure difference.

[0075] In some other embodiments, please refer to Figure 8 , the standby bin 100b and the lower liquid bin 100c are arranged along the circumferential direction of the center of the atomizer 100. That is, the standby bin 100b and the lower liquid bin 100c are arranged at intervals along the circumferential direction of the center of the atomizer 100.

[0076] In some other embodiments, please refer to Fig. 9 The lower liquid tank 100c is located in the spare tank 100b, that is, the spare tank 100b and the lower liquid tank 100c are arranged along the inside and outside directions of the atomizer 100.

[0077] It can be understood that the spare bin 100b and the lower liquid bin 100c include but are not limited to the above three arrangements. Of course, they can also include two or three of the above three arrangements at the same time.

[0078] It should be noted that the specific method of forming the spare tank 100b and the lower liquid tank 100c is not limited here.

[0079] In some embodiments, see Figure 2 and Figure 3The atomizer 100 further includes a partition 50 and a housing 40 having a cavity 40a. At least part of the atomizer seat assembly 20 is disposed in the cavity 40a, and defines a liquid storage space 100a between the partition 50 and the cavity wall of the cavity 40a. The partition 50 is disposed in the liquid storage space 100a, and divides the liquid storage space 100a into a standby bin 100b and a lower liquid bin 100c.

[0080] At least part of the atomizer seat assembly 20 is disposed in the cavity 40a. Part of the structure of the atomizer seat assembly 20 may be disposed in the cavity 40a, or the entire structure of the atomizer seat assembly 20 may be disposed in the cavity 40a.

[0081] That is, the partition 50 is provided to separate the liquid storage space 100a into a standby tank 100b and a lower liquid tank 100c.

[0082] In some embodiments, see Figure 2 and Figure 3 The partition 50 is provided with a accommodating groove 50a opening downward, a lower liquid storage bin 100c is defined between the groove wall of the accommodating groove 50a and the top wall of the atomizer seat assembly 20, and a spare storage bin 100b is defined between the top wall of the partition 50 and the cavity wall of the cavity 40a.

[0083] The partition 50 is in the shape of a basin. By setting the open end of the partition 50 downward and abutting against the top wall of the atomizer seat assembly 20, a lower liquid tank 100c is defined between the groove wall of the accommodating groove 50a and the top wall of the atomizer seat assembly 20. The lower liquid tank 100c is in liquid communication with the atomizer core 10 through the liquid inlet channel 21a. The side wall of the partition 50 is sealed with the cavity wall of the cavity 40a, and a spare tank 100b is defined between the top wall of the partition 50 and the cavity wall of the cavity 40a. In this way, the arrangement of the partition 50 divides the liquid storage space 100a into a spare tank 100b and a lower liquid tank 100c arranged along the height direction of the atomizer 100.

[0084] In some embodiments, see Figure 2 and Figure 3 The switch unit 30 is rotated to switch between the closed state and the open state. The partition 50 is provided with a first through hole 50b (see Figure 7 The switch unit 30 is provided with a second via hole 31a (see Figure 6 ). In the open state, the first via hole 50b is in liquid communication with the second via hole 31a. In the closed state, the first via hole 50b is not in liquid communication with the second via hole 31a.

[0085] There are many ways to switch the switch unit 30 between the closed state and the open state, such as by rotating to switch between the closed state and the open state.

[0086] The separator 50 is provided with a first via hole 50b, wherein the number of the first via holes 50b is not limited here, for example, it can be one or more. Figure 7 As shown, the number of the first via holes 50 b in the embodiment of the present application is two, and the two first via holes 50 b are symmetrically arranged on the separator 50 .

[0087] The switch unit 30 is provided with a second via hole 31a, wherein the number of the second via holes 31a is not limited here, for example, it can be one or more. Figure 6 As shown, the number of the second via holes 31 a in the embodiment of the present application is two, and the two second via holes 31 a are symmetrically arranged on the switch unit 30 .

[0088] In the open state, the first through hole 50b is in liquid communication with the second through hole 31a. That is, the aerosol generating substrate in the standby chamber 100b can be injected into the lower liquid chamber 100c through the first through hole 50b and the second through hole 31a in sequence.

[0089] The first via hole 50b and the second via hole 31a are in liquid communication. The first via hole 50b and the second via hole 31a can be completely aligned, that is, the projections of the centers of the first via hole 50b and the second via hole 31a in the height direction coincide with each other. The first via hole 50b and the second via hole 31a can be completely slightly offset from each other.

[0090] In the closed state, the first through hole 50b and the second through hole 31a are not in liquid communication, that is, the aerosol generating substrate in the standby chamber 100b cannot be injected into the lower liquid chamber 100c through the first through hole 50b and the second through hole 31a.

[0091] In some embodiments, see Figure 2 , Figure 3 and Figure 6 The suction member 32 includes a switch member 31 and an air outlet pipe 321 having an air outlet channel 321a. The air outlet channel 321a is used to discharge the aerosol in the atomizing chamber 21b. The switch member 31 is provided with a second through hole 31a. The switch member 31 is arranged on the outer periphery of the air outlet pipe 321. The air outlet pipe 321 can drive the switch member 31 to rotate relative to the atomizing seat assembly 20, so that the switch unit 30 is switched between the closed state and the open state.

[0092] Specifically, the air outlet pipe 321 is arranged along the top-bottom direction of the atomizer 100 , that is, the air outlet channel 321 a is arranged along the top-bottom direction of the atomizer 100 .

[0093] For example, in some embodiments, the housing 40 and the air outlet pipe 321 may be an integrated structure, for example, integrally injection molded. The integrated housing 40 and the air outlet pipe 321 can reduce the number of parts, reduce assembly time, and improve assembly efficiency.

[0094] In some other embodiments, the housing 40 and the air outlet pipe 321 may also be a split structure to facilitate production.

[0095] Please continue reading Figure 2 , Figure 3 and Figure 6 The switch element 31 is disposed on the outer periphery of the air outlet pipe 321 , and the air outlet pipe 321 can drive the switch element 31 to rotate relative to the atomizer seat assembly 20 , so that the switch unit 30 switches between the closed state and the open state.

[0096] For example, in some embodiments, see Figure 6 The switch member 31 and the air outlet pipe 321 can be an integrated structure, for example, an integrated injection molding. The integrated housing 40 and the air outlet pipe 321 can reduce the number of parts, reduce assembly time, and improve assembly efficiency.

[0097] In other embodiments, the switch member 31 and the air outlet pipe 321 may also be a split structure, which is convenient for manufacturing. The switch member 31 and the air outlet pipe 321 are anti-rotationally matched, so that the air outlet pipe 321 drives the switch member 31 to rotate relative to the atomizer seat assembly 20.

[0098] In some embodiments, see Figure 2 , Figure 3 and Figure 7 The top part of the separator 50 is recessed to form a limit groove 50c, and the switch 31 is rotatably disposed in the limit groove 50c. In this way, the limit groove 50c limits the switch 31, thereby improving the reliability of the cooperation between the switch unit 30 and the separator 50.

[0099] See also Figure 7 , the first through hole 50b passes through the bottom wall of the limiting groove 50c.

[0100] Please note that Figure 2 and Figure 3 The partition 50 includes a partition body and a first sealing member 52 sleeved on the partition body. The first sealing member 52 is sealed and clamped between the partition body and the switch member 31, the air outlet pipe 321 and the wall of the cavity 40a, and is used to seal the installation gap between the partition body and the switch member 31, the air outlet pipe 321 and the wall of the cavity 40a.

[0101] See also Figure 2 and Figure 3 The atomizer seat assembly 20 includes an atomizer seat 21 and a second sealing member 22 sleeved on the atomizer seat 21. The second sealing member 22 is sealingly clamped between the atomizer seat 21 and the partition 50, the air outlet pipe 321 and the cavity wall of the cavity 40a, and is used to seal the installation gap between the atomizer seat 21 and the partition 50, the air outlet pipe 321 and the cavity wall of the cavity 40a.

[0102] In some embodiments, see Figure 2 and Figure 3 The suction member 32 further includes a suction portion 322. The suction portion 322 is disposed at one end of the air outlet pipe 321 away from the atomizing chamber 21b.

[0103] See also Figure 4 and Figure 5 One of the suction member 32 and the housing 40 is provided with a sliding groove 41 a, and the other one is provided with a sliding portion 322 a, and the sliding portion 322 a is rotatably disposed in the sliding groove 41 a.

[0104] The suction member 32 is, for example, a nozzle, that is, the user can inhale the aerosol generating device through the nozzle. The suction member 32 includes an air outlet pipe 321 and a suction portion 322, that is, the user can hold the suction portion 322 in the mouth to inhale the aerosol generating device. The suction portion 322 can be rotated to drive the air outlet pipe 321 to rotate.

[0105] For example, in some embodiments, the air outlet pipe 321 and the suction part 322 may be an integrated structure, for example, integrally injection molded. The integrated air outlet pipe 321 and the suction part 322 can reduce the number of parts, reduce assembly time, and improve assembly efficiency.

[0106] In other embodiments, the air outlet pipe 321 and the suction part 322 may also be a split structure, which is convenient for manufacturing. The air outlet pipe 321 and the suction part 322 are anti-rotationally matched, so that the suction part 322 drives the air outlet pipe 321 to rotate relative to the atomizer seat assembly 20.

[0107] See also Figures 2 to 5 One of the suction piece 32 and the shell 40 is provided with a sliding groove 41a, and the other is provided with a sliding portion 322a. The shell 40 can be provided with the sliding portion 322a, and the suction piece 32 is provided with the sliding groove 41a. Alternatively, the shell 40 can be provided with the sliding groove 41a, and the suction piece 32 is provided with the sliding portion 322a, and the sliding portion 322a is rotatably provided in the sliding groove 41a.

[0108] The suction member 32 is provided with a sliding portion 322 a , and the sliding portion 322 a may be provided on the air outlet pipe 321 or on the suction portion 322 .

[0109] For example, see Figures 2 to 3The housing 40 is provided with a connecting pipe 41 extending along the air outlet channel 321a. The air outlet pipe 321 is sequentially arranged in the connecting pipe 41 and the partition 50, and is communicated with the atomizing chamber 21b. The air outlet channel 321a is used to discharge the aerosol in the atomizing chamber 21b. In this embodiment, the housing assembly is provided with a suction piece 32 having an air outlet pipe 321, and a connecting pipe 41 is arranged in the housing 40, so that the air outlet pipe 321 is arranged in the connecting pipe 41, and the air outlet pipe 321 is inserted into the connecting pipe 41 from the top of the housing 40, so that the air outlet channel 321a can be communicated with the atomizing chamber 21b, and the air outlet pipe 321 can rotate relative to the housing 40.

[0110] Specifically, a portion of the inner tube wall of the connecting tube 41 is recessed radially outward to form a sliding groove 41 a , and the connecting tube 41 is protruded radially outward to be provided with a sliding portion 322 a .

[0111] For example, see Figures 2 to 3 The atomizer 100 includes a third sealing member 70 , which is sealingly clamped between the connecting tube 41 and the switch member 31 to seal the installation gap between the connecting tube 41 and the switch member 31 .

[0112] It is understandable that the rotation angle between the suction member 32 and the atomizer seat assembly 20 can be controlled by the extension length or extension distance of the sliding slot 41a, or the central angles corresponding to the two ends of the sliding slot 41a along the extension direction.

[0113] The depth of the sliding groove 41a recessed radially outward is in the range of 0.3 mm to 10 mm, and the height of the sliding groove 41a along the height direction of the atomizer 100 is in the range of 0.3 mm to 40 mm.

[0114] The width of the sliding portion 322a protruding outward in the radial direction ranges from 0.3mm to 10mm, the height of the sliding portion 322a along the height direction of the atomizer 100 ranges from 1mm to 40mm, and the thickness of the sliding portion 322a ranges from 0.3mm to 5mm.

[0115] It should be noted that the rotation direction of the suction member 32 is not limited herein. For example, the suction member 32 can rotate clockwise or counterclockwise.

[0116] The rotation angle between the suction member 32 and the atomizer seat assembly 20 is not limited here. For example, the rotation angle is P, where the range of P is 0°<P≤359°. The rotation angle of the suction member 32 in the embodiment of the present application is 90°.

[0117] It should be noted that there are many types of switch units 30, which can be controlled manually or by a controller, as long as they can control the connection or disconnection between the spare tank 100b and the lower liquid tank 100c.

[0118] In some embodiments, see Figures 2 to 5 The atomizer 100 further includes an elastic reset member 60. The switch unit 30 is switched from the closed state to the open state under the action of an external force, and the elastic reset member 60 is elastically deformed. When the external force is removed, the switch unit 30 is reset under the elastic force of the elastic reset member 60.

[0119] By setting the elastic reset member 60, when it is necessary to inject liquid into the lower liquid tank 100c, an external force is applied to the switch unit 30, so that the switch unit 30 is switched from the closed state to the open state under the action of the external force, and the elastic reset member 60 is elastically deformed, at this time, the standby tank 100b and the lower liquid tank 100c are in liquid communication, so that the aerosol generating matrix in the standby tank 100b is injected into the lower liquid tank 100c. When the external force is cancelled, the switch unit 30 is reset under the elastic force of the elastic reset member 60, that is, the switch unit 30 is switched from the open state to the closed state, and at this time, the standby tank 100b and the lower liquid tank 100c are not in liquid communication. In other words, by setting the elastic reset member 60, manual reset is not required, which improves the user experience. At the same time, it can avoid forgetting to reset, which causes the switch unit 30 to be in the open state all the time, that is, the standby tank 100b and the lower liquid tank 100c are in the liquid communication state, thereby increasing the risk of leakage.

[0120] It should be noted that the specific location of the elastic reset member 60 is not limited herein. For example, in some embodiments, refer to Figure 4 and Figure 5 One end of the elastic reset member 60 is connected to the suction member 32, and the other end is connected to the housing 40. In other embodiments, the elastic reset member 60 is disposed in the sliding groove 41a.

[0121] The specific type of the elastic return member 60 is not limited here. The elastic return member 60 is, for example, a spring, and the spring may be, for example, a torsion spring 61 , a compression spring or a tension spring 62 .

[0122] Exemplarily, the number of springs is, for example, 1-3.

[0123] Exemplarily, the length of the spring is, for example, 1 mm-30 mm.

[0124] Exemplarily, the number of turns of the spring is, for example, 1 turn to 25 turns.

[0125] Exemplarily, the radius of the spring is, for example, 1 mm-30 mm.

[0126] For example, in some embodiments, see Figures 2 to 4The elastic return member 60 is a torsion spring 61 , which is sleeved on the air outlet pipe 321 , with one end of the torsion spring 61 connected to the suction member 32 , and the other end of the torsion spring 61 connected to the housing 40 .

[0127] It can be understood that the torsion spring 61 includes a free state, a squeezed working state, and a stretched working state. Specifically, the torsion spring 61 includes a first force arm 611 and a second force arm 612. The free state refers to the state of the torsion spring 61 when it is not subjected to external force; the squeezed working state refers to the torsion spring 61 being subjected to external squeezing force, so that the distance between the first force arm 611 and the second force arm 612 is smaller than the distance in the free state; the stretched working state refers to the torsion spring 61 being subjected to external tension, so that the distance between the first force arm 611 and the second force arm 612 is larger than the distance in the free state.

[0128] Therefore, when the switch unit 30 is in the open state, the torsion spring 61 can be in a compressed working state or in a stretched working state, which is not limited here.

[0129] It can be understood that when the switch unit 30 switches between the closing direction and the opening direction, the direction of the force applied by the torsion spring 61 to the switch unit 30 is opposite, that is, when the switch unit 30 is in the closed state, the torque applied by the torsion spring 61 to the switch unit 30 can also be zero, and the torsion spring 61 is in a free state.

[0130] For example, in some embodiments, see Figures 2 to 4 The first force arm 611 of the torsion spring 61 is connected to the suction member 32, and the second force arm 612 is connected to the housing 40. The suction member 32 changes the distance between the first force arm 611 and the second force arm 612 by rotating.

[0131] In some embodiments, see Figure 2 and Figure 5 The elastic return member 60 is a tension spring 62 , and the tension spring 62 is disposed in the sliding groove 41 a . For example, one end of the tension spring 62 is connected to the suction member 32 , and the other end is connected to the housing 40 .

[0132] When the switch unit 30 switches from the closed state to the open state under the action of external force, the tension spring 62 is stretched and elastically deformed, and the external force is cancelled. The switch unit 30 is reset under the elastic force of the tension spring 62, that is, the switch unit 30 switches from the open state to the closed state.

[0133] In some embodiments, the elastic reset member 60 is a compression spring, which is disposed in the sliding groove 41a. For example, the compression spring may be connected to the suction member 32 at one end and connected to the housing 40 at the other end. Of course, the compression spring may also be disposed between the suction member 32 and the housing 40.

[0134] When the switch unit 30 is switched from a closed state to an open state under the action of an external force, the suction piece 32 and the housing 40 compress the compression spring and cause the compression spring to undergo elastic deformation, and when the external force is removed, the switch unit 30 is reset under the elastic force of the compression spring, i.e., the switch unit 30 is switched from an open state to a closed state.

[0135] In some embodiments, the capacity of the spare chamber 100b is 0.1 ml-100 ml, for example, 0.1 ml, 10 ml, 20 ml, 30 ml, 40 ml, 50 ml, 60 ml, 70 ml, 80 ml, 90 ml or 100 ml, etc.

[0136] In some embodiments, the capacity of the lower liquid tank 100c is 0.1 ml-100 ml, for example, 0.1 ml, 10 ml, 20 ml, 30 ml, 40 ml, 50 ml, 60 ml, 70 ml, 80 ml, 90 ml or 100 ml, etc.

[0137] In some embodiments, the flow cross-section area of ​​the first via hole 50b is 0.1 mm 2 -30mm 2 For example, 0.1 mm 2 , 1mm 2 , 2mm 2 , 3mm 2 , 5mm 2 , 7mm 2 , 10mm 2 、13mm 2 、16mm 2 , 20mm 2 , 25mm 2 、27mm 2 、28mm 2 or 30mm 2 etc.

[0138] The flow cross section is a cross section orthogonal to all streamlines of the elementary flow or total flow, i.e., the aerosol generating substrate, that is, a plane perpendicular to the flow velocity cluster. The size of the flow cross section is positively correlated with the flow velocity of the aerosol generating substrate.

[0139] By setting the flow cross-section area of ​​the first via hole 50b to 0.1 mm 2 -30mm 2 , which is beneficial to control the aerosol-generating matrix in the spare bin 100b to be smoothly injected into the lower liquid bin 100c, and is beneficial to control the injection speed.

[0140] In some embodiments, the area of ​​the flow cross section of the second via hole 31a is 0.1 mm 2 -30mm2 For example, 0.1 mm 2 , 1.5mm 2 , 2.6mm 2 , 4mm 2 , 5mm 2 , 8mm 2 , 10mm 2 , 12mm 2 , 15mm 2 , 20mm 2 , 23mm 2 、26mm 2 、29mm 2 or 30mm 2 etc.

[0141] By setting the flow cross-section area of ​​the second via hole 31a to 0.1 mm 2 -30mm 2 , which is beneficial to control the aerosol-generating matrix in the spare bin 100b to be smoothly injected into the lower liquid bin 100c, and is beneficial to control the injection speed.

[0142] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0143] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An atomizer, characterized in that: include: A liquid storage space, including a spare tank and a lower liquid tank, both of which are used to store aerosol generating substrates; The switch unit comprises an open state and a closed state, in which the standby tank is in liquid communication with the lower liquid tank in the open state, and in which the standby tank is in liquid communication with the lower liquid tank in the closed state; An atomizing seat assembly is provided with an atomizing chamber; An atomizing core is disposed in the atomizing chamber, the lower liquid reservoir is in liquid communication with the atomizing core, and the atomizing core is used to atomize an aerosol generating matrix to generate an aerosol; In which, the switch unit includes an elastic return member and a suction member with an air outlet channel, the air outlet channel is used to discharge the aerosol in the atomization chamber, the suction member can move under the action of external force, switch from the closed state to the open state, and cause the elastic return member to produce elastic deformation; when the external force is removed, the suction member is reset under the elastic force of the elastic return member.

2. The atomizer according to claim 1, characterized in that The suction member can be rotated under the action of an external force, or can be moved along the axial direction of the atomizer, so that the switch unit is switched from the closed state to the open state.

3. The atomizer according to claim 1, characterized in that The spare bin and the lower liquid bin are arranged along the height direction of the atomizer; or, the spare bin and the lower liquid bin are arranged along the circumference of the center of the atomizer; or, the lower liquid bin is located in the spare bin.

4. The atomizer according to any one of claims 1 to 3, characterized in that: The atomizer also includes a shell having a cavity, at least part of the atomizer seat assembly is arranged in the cavity, and defines the liquid storage space between the atomizer seat assembly and the cavity wall of the cavity; one end of the elastic return member is connected to the suction member, and the other end is connected to the shell.

5. The atomizer according to claim 4, characterized in that One of the suction piece and the housing is provided with a sliding groove, and the other one is provided with a sliding portion, and the sliding portion is rotatably provided in the sliding groove.

6. The atomizer according to any one of claims 1 to 3, characterized in that: The atomizer further comprises a partition and a shell having a cavity, wherein at least a portion of the atomizer seat assembly is disposed in the cavity and defines the liquid storage space between the atomizer seat assembly and the cavity wall of the cavity; The partition is arranged in the liquid storage space, and divides the liquid storage space into the standby bin and the lower liquid bin.

7. The atomizer according to claim 6, characterized in that The separator is provided with a first via hole, and the switch unit is provided with a second via hole. In the open state, the first via hole is in liquid communication with the second via hole, and in the closed state, the first via hole is not in liquid communication with the second via hole.

8. The atomizer according to claim 7, characterized in that The suction member includes a switch member and an air outlet pipe having the air outlet channel, the switch member is provided with the second through hole, the switch member is arranged on the outer periphery of the air outlet pipe, and the air outlet pipe can drive the switch member to rotate relative to the atomizer seat assembly so that the switch unit switches between the closed state and the open state.

9. The atomizer according to claim 8, characterized in that The elastic return member is a torsion spring, which is sleeved on the air outlet pipe, one end of the torsion spring is connected to the suction member, and the other end is connected to the shell.

10. An aerosol generating device, characterized in that: It comprises a power supply assembly and the atomizer according to any one of claims 1 to 9, wherein the power supply assembly is electrically connected to the atomizer.

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