Locking device and electric device

Abstract

The utility model provides a locking device and a power utilization device, the locking device comprises a base body, a locking piece and a self-locking mechanism, the locking piece is rotatably connected to the base body, a containing groove used for containing a lock shaft is formed in the locking piece, the locking piece is provided with an unlocking position and a locking position, the self-locking mechanism is arranged on the base body and comprises a first elastic structure and a self-locking assembly, and the self-locking assembly comprises a second elastic structure and a second self-locking assembly. The self-locking assembly is connected to the base body and connected with the first elastic structure, and the self-locking assembly is configured to abut against the locking piece under the action of the elastic force of the first elastic structure and enable the locking piece to be kept at the locking position. According to the structure, the self-locking assembly can abut against the locking piece under the action of the elastic force of the first elastic structure, so that the locking piece is kept at the locking position, the locking shaft of the battery can be stably arranged in the containing groove of the locking piece and is not prone to disengagement, and the reliability of the locking device for locking the locking shaft of the battery is improved; and the battery locking reliability of the locking device can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a locking device and an electrical device. Background Art

[0002] Batteries have advantages such as high specific energy and high power density, and are widely used in electronic devices and transportation means, such as mobile phones, laptop computers, battery cars, electric vehicles, electric airplanes, electric ships, and electric tools, etc.

[0003] In the field of electric vehicles, batteries usually need to be locked to the vehicle frame for fixing the batteries and facilitating replacement. How to improve the reliability of battery locking has always attracted the attention of those skilled in the art. Summary of the Utility Model

[0004] In view of the above problems, the present application provides a locking device and an electrical device, and the locking device has good reliability in locking the battery.

[0005] In a first aspect, some embodiments of the present application provide a locking device for cooperating with a locking shaft of a battery. The locking device includes a base body, a locking member, and a self-locking mechanism. The locking member is rotatably connected to the base body. The locking member is formed with a receiving groove for receiving the locking shaft. The locking member has an unlocking position and a locking position. The self-locking mechanism is arranged on the base body and includes a first elastic structure and a self-locking assembly. The self-locking assembly is connected to the base body and is connected to the first elastic structure. The self-locking assembly is configured to abut against the locking member under the action of the elastic force of the first elastic structure and keep the locking member in the locking position.

[0006] In the above structure, since the self-locking assembly can abut against the locking member under the action of the elastic force of the first elastic structure, so that the locking member is kept in the locking position, the locking shaft of the battery can be stably placed in the receiving groove of the locking member and is not easy to come out, which is beneficial to improving the reliability of the locking device for locking the locking shaft of the battery and is beneficial to improving the reliability of the locking device for locking the battery.

[0007] According to the locking device provided by some embodiments of the present application, the self-locking assembly further includes a seat body, an operating member, and a transmission assembly. The seat body is fixed to the base body. The operating member is movably connected to the seat body and is connected to the first elastic structure and the transmission assembly. The transmission assembly is driven by the operating member to abut against the locking member or disengage from the locking member.

[0008] According to the locking device provided by some embodiments of the present application, the seat body is provided with a guiding hole. The operating member is movably arranged in the guiding hole. The first elastic structure is located in the guiding hole and sleeved on the operating member. By sleeving the first elastic structure outside the operating member and arranging it in the guiding hole, the space in the locking device can be fully utilized, which is beneficial to improving the structural compactness of the locking device.

[0009] According to the locking device provided in some embodiments of the present application, the actuating member is provided with a limiting structure, the limiting structure is located outside the guide hole, and the size of the limiting structure is larger than the size of the guide hole in the radial direction of the guide hole. By arranging the limiting structure outside the guide hole and making the size of the limiting structure in the radial direction of the guide hole larger than the size of the guide hole in its own radial direction, the limiting structure can be blocked at the guide hole of the seat body, so that the actuating member is not easy to retract too much into the guide hole.

[0010] According to the locking device provided in some embodiments of the present application, the transmission assembly includes a first member and a second member that are transmission-connected, the first member is rotatably connected to the base, the second member is rotatably connected to the base, the first member is connected to the actuating member, and the second member can abut against the locking member, so that the action force of the actuating member can act on the locking member via the first member and the second member.

[0011] According to the locking device provided in some embodiments of the present application, the first component is provided with a connection notch, and the second component includes a first part and a second part connected to each other, at least a portion of the first part is located in the connection notch, and the second part abuts against the locking member. By making at least a portion of the first part be disposed in the connection notch, the first part located in the connection notch can abut against the inner wall surface of the connection notch, so that the first component can drive the second component to rotate during the rotation process.

[0012] According to the locking device provided in some embodiments of the present application, a blocking structure is convexly provided on the inner wall surface of the connection notch, and the blocking structure is located at the opening of the connection notch. By arranging the blocking structure at the opening of the connection notch, the connection notch is made to have a constricted structure, so that the first part located in the connection notch is not easy to escape from the connection notch, which is conducive to improving the stability of the transmission connection between the first component and the second component.

[0013] According to the locking device provided in some embodiments of the present application, the locking member includes a second elastic structure, a main body and a rotating shaft, the main body is rotatably connected to the base through the rotating shaft, and the second elastic structure is connected to the main body and the base; under the action of the elastic force of the second elastic structure, the main body is offset from the self-locking component or the locking member switches from the locked position to the unlocked position.

[0014] When the locking member is in the locked position, the main body can resist the self-locking assembly under the action of the elastic force of the second elastic structure, so that the main body can be stably maintained in the locked position. When the self-locking assembly is disengaged from the locking member, the main body can rotate under the action of the elastic force of the second elastic structure, thereby switching to the unlocked position, which is convenient for unlocking the battery.

[0015] According to the locking device provided by some embodiments of the present application, the main body is provided with an abutting portion, and the abutting portion abuts against the self-locking assembly. By protruding the abutting portion on the outer peripheral surface of the main body, the locking member abuts against the abutting portion, so that the locking member can stably abut against the locking member.

[0016] According to the locking device provided by some embodiments of the present application, the base body is provided with an avoidance groove. Along the axial direction of the locking shaft, at least a part of the projection of the avoidance groove coincides with the projection of the accommodating groove; the included angle between the orientation of the opening of the accommodating groove and the orientation of the opening of the avoidance groove is A. When the locking member is in the unlocked position, 0° ≤ A < 90°; when the locking member is in the locked position, 90° ≤ A ≤ 180°.

[0017] According to the locking device provided by some embodiments of the present application, along the first direction, the connection part between the locking member and the self-locking assembly and the avoidance groove are located on the same side of the rotation shaft of the locking member, and the first direction is perpendicular to the orientation of the opening of the avoidance groove.

[0018] In a second aspect, some embodiments of the present application provide an electrical device, which includes a battery and the locking device provided by any of the above technical solutions. The battery includes a locking shaft, and the locking shaft is accommodated in the accommodating groove of the locking member in the locking device.

[0019] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

[0020] Some embodiments of the present application provide a locking device for cooperating with the locking shaft of a battery. The locking device includes a base body, a locking member and a self-locking mechanism. The locking member is rotatably connected to the base body. The locking member is formed with an accommodating groove for accommodating the locking shaft. The locking member has an unlocked position and a locked position. The self-locking mechanism is arranged on the base body and includes a first elastic structure and a self-locking assembly. The self-locking assembly is connected to the base body and connected to the first elastic structure. The self-locking assembly is configured to abut against the locking member under the action of the elastic force of the first elastic structure and keep the locking member in the locked position. In the above structure, since the self-locking assembly can abut against the locking member under the action of the elastic force of the first elastic structure, the locking member is kept in the locked position, so that the locking shaft of the battery can be stably placed in the accommodating groove of the locking member and is not easy to come out, which is beneficial to improving the reliability of the locking of the locking shaft of the battery by the locking device and is beneficial to improving the reliability of the locking of the battery by the locking device.

[0021] The above description is only an overview of the technical solutions of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. Description of the Drawings

[0022] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components.

[0023] Figure 1 Schematic diagram of the structure of a vehicle provided by some embodiments of the present application;

[0024] Figure 2 Schematic diagram of the structure of a vehicle for installing a battery provided by some embodiments of the present application;

[0025] Figure 3 Schematic diagram of the disassembled structure of a battery provided by some embodiments of the present application;

[0026] Figure 4 Schematic diagram of the structure of a locking device provided by some embodiments of the present application;

[0027] Figure 5 is Figure 4 Enlarged view of part B in

[0028] In the drawings:

[0029] 100, battery; 10, box body; 101, first box body; 102, second box body; 20, battery cell; 30, locking shaft; 200, controller; 300, motor; 1000, vehicle; 1001, vehicle body; 1002, locking device; 1, base body; 11, avoidance groove; 2, locking member; 21, second elastic structure; 22, main body part; 221, receiving groove; 222, abutting part; 23, rotating shaft; 3, self-locking mechanism; 31, first elastic structure; 32, self-locking component; 321, seat body; 3211, guiding hole; 322, operating member; 3221, limiting structure; 323, transmission component; 3231, first member; 32311, connecting notch; 32312, blocking structure; 3232, second member; 32321, first part; 32322, second part; X, first direction. Detailed Embodiments

[0030] The following will describe in detail the embodiments of the technical solutions of the present application with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0031] It should be noted that unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meaning understood by those skilled in the art to which the embodiments of the present application belong.

[0032] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0033] In addition, the technical terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the embodiments of the present application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0035] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] Currently, from the perspective of the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only applied to energy storage power systems such as hydraulic, thermal, wind and solar power stations, but also widely used in electric transportation means such as electric bicycles, electric motorcycles, electric vehicles, as well as in many fields such as military equipment and aerospace.

[0037] The battery mentioned in the embodiments of the present application includes one or more battery modules. A battery module refers to a single physical module that includes one or more battery cells to provide a higher voltage and capacity.

[0038] The battery cell can be a secondary battery cell, which refers to a battery cell that can be activated by charging the active material after discharging the battery cell and can be used continuously.

[0039] The battery cell can be an ion battery cell, and the ion battery cell includes, but is not limited to, a lithium-ion battery cell, a sodium-ion battery cell, a sodium-lithium-ion battery cell, a magnesium-ion battery cell, and a calcium-ion battery cell.

[0040] With the development of electric vehicles, people's requirements for the driving range of electric vehicles are getting higher and higher. In order to quickly replenish the power lost by the electric vehicle during driving, battery swapping for electric vehicles has become a common method. In order to fix the battery in the vehicle and facilitate replacement, a locking device for cooperating with the locking shaft of the battery is usually provided in the vehicle.

[0041] However, when the locking device in the prior art is subjected to external forces such as vibration and bumps, the internal locking member is prone to rotate, resulting in a risk that the locking shaft of the battery disengages from the locking member, making the locking of the battery unreliable.

[0042] In order to improve the reliability of the locking device for locking the battery, some embodiments of the present application provide a locking device for cooperating with the locking shaft of the battery. The locking device includes a base body, a locking member, and a self-locking mechanism. The locking member is rotatably connected to the base body. The locking member is formed with a groove for accommodating the locking shaft. The locking member has an unlocking position and a locking position. The self-locking mechanism is provided on the base body and includes a first elastic structure and a self-locking component. The self-locking component is connected to the base body and connected to the first elastic structure. The self-locking component is configured to abut against the locking member under the elastic force of the first elastic structure and keep the locking member in the locking position. In the above structure, since the self-locking component can abut against the locking member under the elastic force of the first elastic structure, the locking member is kept in the locking position, so that the locking shaft of the battery can be stably placed in the groove of the locking member and is not easily disengaged, which is beneficial to improving the reliability of the locking device for locking the locking shaft of the battery and is beneficial to improving the reliability of the locking device for locking the battery.

[0043] The locking device described in the embodiments of the present application can be used, but is not limited to, locking the battery in an electrical device, and can also be used in other devices for cooperating with a locking shaft, which can improve the reliability of locking.

[0044] The electrical device can be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, etc. The vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range electric vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle, a spaceship, etc.; the electric toy includes a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric airplane toy, etc.; the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool and a railway electric tool, for example, an electric drill, an electric grinding wheel, an electric wrench, an electric screwdriver, a hammer drill, an impact electric drill, a concrete vibrator, a planer, etc.

[0045] For the convenience of description, the following embodiments take a vehicle 1000 of an embodiment of the present application as an example for description.

[0046] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of the vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range electric vehicle, etc. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be disposed at the bottom, the head or the tail of the vehicle 1000. The battery 100 can be used to supply power to the vehicle 1000. For example, the battery 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, for the working power requirements during the start, navigation and driving of the vehicle 1000.

[0047] In some embodiments of the present application, the battery 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0048] Please refer to Figure 2 , Figure 2 , which is a schematic connection diagram of the vehicle body 1001, the locking device 1002 and the battery 100 in the vehicle 1000 in some embodiments of the present application.

[0049] The locking device 1002 can be arranged at the bottom, head or tail of the vehicle body 1001. The battery 100 can include a locking shaft 30. The locking device 1002 can lock or unlock the locking shaft 30 to complete the battery swapping function of the vehicle. In some embodiments, the battery 100 can be configured with multiple locking shafts 30. For example, multiple locking shafts 30 can be arranged on the box body 10 of the battery 100. The locking shafts 30 are used to cooperate with the locking device 1002 to achieve the locking or unlocking between the battery 100 and the locking device 1002. The vehicle body 1001 is provided with multiple locking devices 1002, and each locking device 1002 is used to lock one locking shaft 30. The multiple locking devices 1002 can jointly carry one battery 100.

[0050] Continue to refer to Figure 3 , the battery 100 includes a box body 10 and battery cells 20, and the battery cells 20 are accommodated in the box body 10. Among them, the box body 10 is used to provide an accommodation space for the battery cells 20. There can be multiple battery cells 20 in the battery 100. The multiple battery cells 20 can be connected in series, parallel or in a hybrid connection. A hybrid connection means that there are both series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 can be directly connected in series, parallel or in a hybrid connection together, and then the whole formed by the multiple battery cells 20 is accommodated in the box body 10. Of course, the battery 100 can also be that multiple battery cells 20 are first connected in series, parallel or in a hybrid connection to form a battery module form, and then multiple battery modules are connected in series, parallel or in a hybrid connection to form a whole and are accommodated in the box body 10.

[0051] The box body 10 can include a first box body 101 and a second box body 102. The first box body 101 and the second box body 102 cover each other to define a placement space for accommodating the battery cells 20. The first box body 101 and the second box body 102 can be of various shapes, such as a cuboid, a cylinder, etc. The first box body 101 can be a hollow structure with one side open, and the second box body 102 can also be a hollow structure with one side open. The open side of the second box body 102 covers the open side of the first box body 101, then the box body 10 with an accommodation space is formed.

[0052] Some embodiments of the present application provide a locking device 1002. Continue to refer to Figure 4 , the locking device 1002 is used to cooperate with the locking shaft 30 of the battery 100. The locking device 1002 includes a base body 1, a locking member 2 and a self-locking mechanism 3. The locking member 2 is rotatably connected to the base body 1. The locking member 2 is formed with a receiving groove 221 for receiving the locking shaft 30. The locking member 2 has an unlocking position and a locking position. The self-locking mechanism 3 is arranged on the base body 1 and includes a first elastic structure 31 and a self-locking component 32. The self-locking component 32 is connected to the base body 1 and is connected to the first elastic structure 31. The self-locking component 32 is configured to abut against the locking member 2 under the elastic force of the first elastic structure 31 and keep the locking member 2 in the locking position.

[0053] The locking device 1002 can be a mechanism installed on the vehicle body 1001, which can cooperate with the locking shaft 30 on the battery 100 to lock and unlock the battery 100 to achieve battery swapping.

[0054] Exemplarily, a bracket can be provided on the box body 10 of the battery 100, the locking shaft 30 is connected to the bracket, and the locking device 1002 locks the battery 100 by locking the locking shaft 30. The locking shaft 30 can be a shaft-like component connected to the box body 10 of the battery 100, which is used to cooperate with the locking member 2 in the locking device 1002 to achieve locking on the locking device 1002.

[0055] The base body 1 can be the main structure in the locking device 1002, which is used to carry other components such as the locking member 2 and the self-locking mechanism 3 in the locking device 1002. The base body 1 is connected to the vehicle 1000 main body, so that the battery 100 can be connected to the vehicle 1000 main body through the locking device 1002.

[0056] Exemplarily, the base body 1 can be a plate-like component with a preset thickness, so that it has a relatively large side area to set up mechanisms such as the locking member 2 and the self-locking mechanism 3.

[0057] The locking member 2 can be a component used to cooperate with the locking shaft 30, and it can be in direct contact with the locking shaft 30. The receiving groove 221 can be a groove-like structure provided on the locking member 2, and the receiving groove 221 is used to receive the locking shaft 30. The locking shaft 30 is fitted in the receiving groove 221 to realize the connection between the locking member 2 and the locking shaft 30.

[0058] By rotatably connecting the locking member 2 to the base body 1, the locking member 2 can change its position by rotation, so that the locking member 2 has an unlocking position and a locking position. The unlocking position can refer to the position where the locking shaft 30 can be disengaged from the receiving groove 221, so that the battery 100 can be unlocked from the locking member 2; the locking position can refer to the position where the locking shaft 30 is not easily disengaged from the receiving groove 221, and the battery 100 is not easily unlocked from the locking member 2.

[0059] The self-locking mechanism 3 can be a mechanism used to act on the locking member 2 to keep the locking member 2 in the locking position. By arranging the self-locking mechanism 3 on the base body 1, the self-locking mechanism 3 can easily act on the locking member 2 arranged on the base body 1.

[0060] The first elastic structure 31 can be a structure that can undergo elastic deformation, and it can stably provide an elastic force outward in the state of elastic deformation.

[0061] The self-locking component 32 can be a component connected to the base 1 and used to lock the cooperation between the locking member 2 and the lock shaft 30. By connecting the self-locking component 32 to the first elastic structure 31, the self-locking component 32 can be driven by the first elastic structure 31, and the self-locking component 32 can be driven by the elastic force of the first elastic structure 31 to abut against the locking member 2, so that the locking member 2 is kept in the locked position and is not easy to change position, so that the lock shaft 30 is not easy to escape from the receiving groove 221, and the battery 100 is not easy to be unlocked from the locking member 2.

[0062] In the above structure, since the self-locking component 32 can resist the locking member 2 under the action of the elastic force of the first elastic structure 31, the locking member 2 is maintained in the locked position, so that the locking shaft 30 of the battery 100 can be stably placed in the receiving groove 221 of the locking member 2 and is not easy to fall out, which is beneficial to improve the reliability of the locking device 1002 locking the locking shaft 30 of the battery 100, and is beneficial to improve the reliability of the locking device 1002 locking the battery 100.

[0063] In some embodiments, the self-locking component 32 also includes a base body 321, an actuating member 322 and a transmission component 323. The base body 321 is fixed to the base body 1. The actuating member 322 is movably connected to the base body 321 and is connected to the first elastic structure 31 and the transmission component 323. The transmission component 323 is driven by the actuating member 322 to resist against or disengage from the locking member 2.

[0064] The seat body 321 may be a seat-shaped component in the self-locking component 32, which is fixedly connected to the base 1. The action member 322 may be a component in the self-locking component 32 that can be actuated under the action of the first elastic structure 31 or an external force. The transmission component 323 may be a component that is transmission-connected to the action member 322, which can abut against the locking member 2, and the transmission component 323 can abut against the locking member 2 under the drive of the action member 322.

[0065] The actuating member 322 is movably connected to the base body 321 , so that the actuating member 322 can move relative to the base body 1 , and the actuating member 322 can drive the transmission assembly 323 to move through its own movement.

[0066] The moving member 322 is connected to the first elastic structure 31, so that the moving member 322 can move under the drive of the first elastic structure 31. The moving member 322 is connected to the transmission assembly 323, so that the moving member 322 can drive the transmission assembly 323 to act. Under the action of the elastic force of the first elastic structure 31, the moving member 322 can drive the transmission assembly 323 to make the transmission assembly 323 abut against the locking member 2, so that the locking member 2 is kept in the locking position, so that the locking shaft 30 of the battery 100 can be stably placed in the receiving groove 221 of the locking member 2 and is not easily disengaged. The moving member 322 can also act under the action of an external force, driving the transmission assembly 323 to disengage from the abutment against the locking member 2, so that the locking member 2 is in the unlocking position, so that the locking shaft 30 of the battery 100 can be disengaged from the receiving groove 221, realizing the unlocking of the battery 100 by the locking device 1002.

[0067] In some embodiments, the base body 321 is provided with a guiding hole 3211, the moving member 322 is movably arranged in the guiding hole 3211, and the first elastic structure 31 is located in the guiding hole 3211 and sleeved on the moving member 322.

[0068] The guiding hole 3211 may be a hole-like structure provided in the base body 321, which is used to guide the movement of the moving member 322. The moving member 322 is movably arranged in the guiding hole 3211, which may be that at least a part of the moving member 322 is received in the guiding hole 3211 and can move along the extending direction of the guiding hole 3211 in the guiding hole 3211, so that the moving member 322 can move in a preset direction to realize its own function.

[0069] By sleeving the first elastic structure 31 outside the moving member 322 and arranging it in the guiding hole 3211, the space in the locking device 1002 can be fully utilized, which is beneficial to improving the structural compactness of the locking device 1002.

[0070] Exemplarily, the first elastic structure 31 may be a spring extending along the axial direction of the moving member 322, or may be a cylinder extending along the axial direction of the moving member 322.

[0071] In some embodiments, referring to Figure 5 , the moving member 322 is provided with a limiting structure 3221, the limiting structure 3221 is located outside the guiding hole 3211, and in the radial direction of the guiding hole 3211, the size of the limiting structure 3221 is larger than the size of the guiding hole 3211.

[0072] The limiting structure 3221 may be a structure for restricting the movement of the moving member 322, which is used to restrict the moving member 322 from being overly retracted into the guiding hole 3211 under the action of the first elastic structure 31, so that the transmission assembly 323 can provide a suitable abutting force to the locking member 2.

[0073] By arranging the limiting structure 3221 outside the guiding hole 3211 and making the dimension of the limiting structure 3221 in the radial direction of the guiding hole 3211 larger than the dimension of the guiding hole 3211 in its own radial direction, the limiting structure 3221 can block at the guiding hole 3211 of the seat body 321, so that the moving part 322 is not likely to retract too much into the guiding hole 3211.

[0074] In some embodiments, the transmission assembly 323 includes a first member 3231 and a second member 3232 that are drivingly connected. The first member 3231 is rotatably connected to the base body 1, the second member 3232 is rotatably connected to the base body 1, the first member 3231 is connected to the moving part 322, and the second member 3232 can abut against the locking member 2.

[0075] The first member 3231 and the second member 3232 may be components in the transmission assembly 323, and the two are drivingly connected to transmit the acting force of the moving part 322 to the locking member 2. The first member 3231 is rotatably connected to the base body 1, the second member 3232 is rotatably connected to the base body 1, the first member 3231 is connected to the moving part 322, and the second member 3232 can abut against the locking member 2, so that the acting force of the moving part 322 can act on the locking member 2 via the first member 3231 and the second member 3232.

[0076] In some embodiments, the first member 3231 is provided with a connecting notch 32311, and the second member 3232 includes a first part 32321 and a second part 32322 that are connected to each other. At least a part of the first part 32321 is located in the connecting notch 32311, and the second part 32322 abuts against the locking member 2.

[0077] The connecting notch 32311 may be a notch structure formed on the first member 3231 for connecting with the second member 3232. The first part 32321 and the second part 32322 may be two parts of the second member 3232 that are connected to each other. The first part 32321 may be the part for connecting with the first member 3231, and the second part 32322 may be the part for abutting against the locking member 2.

[0078] By arranging at least a part of the first part 32321 in the connecting notch 32311, the first part 32321 located in the connecting notch 32311 can abut against the inner wall surface of the connecting notch 32311, so that the first member 3231 can drive the second member 3232 to rotate during the rotation process.

[0079] In some embodiments, a blocking structure 32312 is protruded on the inner wall surface of the connecting notch 32311, and the blocking structure 32312 is located at the opening of the connecting notch 32311.

[0080] The blocking structure 32312 can be a structure used to block the first part 32321 located in the connection notch 32311, and it can reduce the possibility of the first part 32321 disengaging from the connection notch 32311 by blocking.

[0081] By protruding the blocking structure 32312 from the inner wall surface of the connection notch 32311, the blocking structure 32312 can block the first part 32321. By arranging the blocking structure 32312 at the opening of the connection notch 32311, the connection notch 32311 is in a constricted structure, making it difficult for the first part 32321 located in the connection notch 32311 to disengage from the connection notch 32311, which is beneficial to improving the stability of the transmission connection between the first component 3231 and the second component 3232.

[0082] In some embodiments, the locking member 2 includes a second elastic structure 21, a main body portion 22, and a rotating shaft 23. The main body portion 22 is rotatably connected to the base body 1 through the rotating shaft 23, and the second elastic structure 21 is connected to the main body portion 22 and the base body 1; under the action of the elastic force of the second elastic structure 21, the main body portion 22 abuts against the self-locking assembly 32 or the locking member 2 switches from the locking position to the unlocking position.

[0083] The main body portion 22 can be the main structure of the locking member 2, and a receiving groove 221 is formed on the main body portion 22. The rotating shaft 23 can be a shaft-like structure connected to the main body portion 22 in the locking member 2. The main body portion 22 is rotatably connected to the base body 1 through the rotating shaft 23, enabling the locking member 2 to rotate relative to the base body 1 to switch between the unlocking position and the locking position.

[0084] The second elastic structure 21 can be a structure that can provide torque for the main body portion 22, enabling the main body portion 22 to rotate around the rotating shaft 23 under the action of the second elastic structure 21. By connecting the second elastic structure 21 to the main body portion 22 and the base body 1, the second elastic structure 21 can use its own elastic force to provide torque for the main body portion 22.

[0085] When the locking member 2 is in the locking position, the main body portion 22 can abut against the self-locking assembly 32 under the action of the elastic force of the second elastic structure 21, enabling the main body portion 22 to stably remain in the locking position. When the self-locking assembly 32 disengages from the abutment against the locking member 2, the main body portion 22 can rotate under the action of the elastic force of the second elastic structure 21, thereby switching to the unlocking position for facilitating the unlocking of the battery 100.

[0086] Exemplarily, the second elastic structure 21 is a torsion spring sleeved on the rotating shaft 23, with one end connected to the base body 1 and the other end connected to the main body portion 22.

[0087] In some embodiments, the main body portion 22 is provided with an abutting portion 222, and the abutting portion 222 abuts against the self-locking assembly 32.

[0088] The abutting portion 222 may be a structure provided on the main body portion 22, which is used to abut against the self-locking assembly 32 so that the locking member 2 is held in the locked position.

[0089] By protruding the abutting portion 222 on the outer peripheral surface of the main body portion 22, the locking member 2 abuts against the abutting portion 222, so that the locking member 2 can stably abut against the locking member 2.

[0090] Exemplarily, the abutting portion 222, the main body portion 22 and the rotating shaft 23 are integrally formed structures, so that the locking member 2 has a strong bearing capacity and can bear a battery 100 with a large weight.

[0091] In some embodiments, the base body 1 is provided with an avoidance groove 11. Along the axial direction of the locking shaft 30, the projection of the avoidance groove 11 coincides with at least a part of the projection of the receiving groove 221; the included angle between the opening direction of the receiving groove 221 and the opening direction of the avoidance groove 11 is A. When the locking member 2 is in the unlocked position, 0° ≤ A < 90°; when the locking member 2 is in the locked position, 90° ≤ A ≤ 180°.

[0092] The avoidance groove 11 may be a groove-like structure provided on the base body 1, which is used to accommodate the locking shaft 30 of the battery 100. By making the projection of the avoidance groove 11 along the axial direction of the locking shaft 30 coincide with at least a part of the projection of the receiving groove 221 along the axial direction of the locking shaft 30, the locking shaft 30 of the battery 100 can be placed in both the avoidance groove 11 and the receiving groove 221 at the same time, so that when the locking shaft 30 is assembled into the receiving groove 221, it is not easy to interfere with the base body 1.

[0093] By setting the range of the included angle A between the opening direction of the receiving groove 221 and the opening direction of the avoidance groove 11 to be A, 0° ≤ A < 90° when the locking member 2 is in the unlocked position, when the locking shaft 30 is disengaging from the receiving groove 221, it is not easy to be blocked by the inner wall of the avoidance groove 11, making it convenient for the locking shaft 30 to disengage from the receiving groove 221.

[0094] By setting the range of the included angle A between the opening direction of the receiving groove 221 and the opening direction of the avoidance groove 11 to be A, 90° ≤ A ≤ 180° when the locking member 2 is in the locked position, when the locking shaft 30 is placed in the receiving groove 221, the inner wall of the avoidance groove 11 can block the locking shaft 30 from disengaging from the receiving groove 221, making it not easy for the locking shaft 30 to disengage from the receiving groove 221, which is beneficial to improving the locking reliability of the locking device 1002 for the locking shaft 30.

[0095] In some embodiments, along the first direction X, the connection between the locking member 2 and the self-locking assembly 32 and the avoidance groove 11 are on the same side of the rotation axis 23 of the locking member 2, and the first direction X is perpendicular to the orientation of the opening of the avoidance groove 11.

[0096] The first direction X can be a direction perpendicular to the orientation of the opening of the avoidance groove 11. By making the connection between the locking member 2 and the self-locking assembly 32 and the avoidance groove 11 on the same side of the rotation axis 23 of the locking member 2, the locking member 2 can adjust the included angle between the orientation of the opening of the receiving groove 221 and the orientation of the opening of the avoidance groove 11 by rotating around the rotation axis 23, so as to realize the switching of the locking member 2 between the locking position and the unlocking position.

[0097] Some embodiments of the present application further provide an electrical device, which includes a battery 100 and the locking device 1002 provided in any of the foregoing technical solutions. The battery 100 includes a locking shaft 30, and the locking shaft 30 is received in the receiving groove 221 of the locking member 2 in the locking device 1002.

[0098] The locking shaft 30 of the battery 100 is received on the receiving groove 221 of the locking member 2 in the locking device 1002, so that the battery 100 can be installed on the locking device 1002, and the battery 100 can be installed in the electrical device through the locking device 1002.

[0099] The electrical device can be a vehicle 1000 or any device provided in the foregoing technical solutions.

[0100] Some embodiments of the present application provide a locking device 1002, which includes a base 1, a locking piece 2 and a self-locking mechanism 3. The base 1 is provided with an avoidance groove 11. The locking piece 2 is rotatably connected to the base 1 and forms a receiving groove 221. The lock shaft 30 of the battery 100 is accommodated in the receiving groove 221 and the avoidance groove 11. The self-locking mechanism 3 includes a first elastic structure 31, a base 321, an action piece 322, a first component 3231 and a second component 3232. The base 321 is provided with a guide hole 3211. The action piece 322 is movably arranged in the guide hole 3211. The first elastic structure 31 is located in the guide hole 3211 and is sleeved on the action piece 322. The action piece 322, the first component 3231 and the second component 3232 are sequentially connected in transmission. Under the action of the elastic force of the first elastic structure 31, the action piece 322 can drive the second component 3232 to resist the locking piece 2 and keep the locking piece 2 in the locked position. In the above structure, since the second component 3232 can resist the locking member 2 under the action of the elastic force of the first elastic structure 31, the locking member 2 is maintained in the locked position, so that the locking shaft 30 of the battery 100 can be stably placed in the receiving groove 221 of the locking member 2 and is not easy to fall out, which is beneficial to improving the reliability of the locking device 1002 locking the locking shaft 30 of the battery 100, and is beneficial to improving the reliability of the locking device 1002 locking the battery 100.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A locking device for cooperating with the locking shaft of a battery, characterized in that, Comprising: A base body; A locking member rotatably connected to the base body, the locking member being formed with a receiving groove for receiving the locking shaft, the locking member having an unlocking position and a locking position; A self-locking mechanism disposed on the base body and including a first elastic structure and a self-locking assembly, the self-locking assembly being connected to the base body and connected to the first elastic structure, the self-locking assembly being configured to abut against the locking member under the action of the elastic force of the first elastic structure and keep the locking member in the locking position.

2. The locking device according to claim 1, characterized in that, The self-locking assembly further includes a seat body, an operating member and a transmission assembly, the seat body being fixed to the base body, the operating member being movably connected to the seat body and connected to the first elastic structure and the transmission assembly, the transmission assembly being driven by the operating member to abut against the locking member or disengage from the locking member.

3. The locking device according to claim 2, characterized in that, The seat body is provided with a guiding hole, the operating member is movably disposed in the guiding hole, and the first elastic structure is located in the guiding hole and sleeved on the operating member.

4. The locking device according to claim 3, characterized in that, The operating member is provided with a limiting structure located outside the guiding hole, and in the radial direction of the guiding hole, the size of the limiting structure is larger than the size of the guiding hole.

5. The locking device according to claim 2, characterized in that, The transmission assembly includes a first member and a second member that are in transmission connection, the first member is rotatably connected to the base body, the second member is rotatably connected to the base body, the first member is connected to the operating member, and the second member can abut against the locking member.

6. The locking device according to claim 5, characterized in that, The first member is provided with a connecting notch, the second member includes a first part and a second part that are connected to each other, at least part of the first part is located in the connecting notch, and the second part abuts against the locking member.

7. The locking device according to claim 6, characterized in that, A blocking structure is convexly provided on the inner wall surface of the connecting notch, and the blocking structure is located at the opening of the connecting notch.

8. The locking device according to claim 1, characterized in that, The locking member includes a second elastic structure, a main body part and a rotating shaft, the main body part is rotatably connected to the base body through the rotating shaft, and the second elastic structure is connected to the main body part and the base body; Under the action of the elastic force of the second elastic structure, the main body part abuts against the self-locking assembly or the locking member switches from the locking position to the unlocking position.

9. The locking device according to claim 8, characterized in that, The main body part is provided with an abutting part, and the abutting part abuts against the self-locking assembly.

10. The locking device according to claim 1, characterized in that, The base body is provided with an avoidance groove, and along the axial direction of the locking shaft, at least part of the projection of the avoidance groove coincides with the projection of the receiving groove; the included angle between the orientation of the opening of the receiving groove and the orientation of the opening of the avoidance groove is A, and in the state where the locking member is in the unlocking position, 0°≤A<90°; in the state where the locking member is in the locking position, 90°≤A≤180°.

11. The locking device according to claim 10, characterized in that, Along a first direction, the connection part between the locking member and the self-locking assembly and the avoidance groove are on the same side of the rotating shaft of the locking member, and the first direction is perpendicular to the orientation of the opening of the avoidance groove.

12. An electrical device, characterized in that, Comprising: The locking device according to any one of claims 1-11; And A battery including a locking shaft, the locking shaft being received in the receiving groove of the locking member in the locking device.

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