Locking mechanism, battery, vehicle, locking and unlocking mechanism, and battery swapping station

Abstract

Disclosed in the present application are a locking mechanism, a battery, a vehicle, a locking and unlocking mechanism, and a battery swapping station. The locking mechanism comprises a base, a locking member and a locking retention component. The locking member fits with the base and is configured to lock or unlock a target component; and the locking retention component can be respectively coupled with the base and the locking member, and maintains the locking member and the target component in a locked state via coupling. During locking or unlocking, the locking retention component rotates synchronously with the locking member.

Description

Locking mechanism, battery, vehicle, locking and unlocking mechanism, and battery swap station

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application 202311872886.4 filed on December 29, 2023, entitled “Locking mechanism, battery, vehicle, locking and unlocking mechanism, and battery swap station,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of battery replacement, and in particular to a locking mechanism, a battery, a vehicle, a locking and unlocking mechanism, and a battery replacement station. Background Art

[0004] With the development of new energy technologies, more and more devices use batteries. When these devices run out of power, they often need to be connected to charging devices to replenish their energy. For example, electric vehicles can be connected to charging stations. However, charging can take a long time, affecting the user experience.

[0005] Compared to charging, battery swapping can replenish energy more quickly. Batteries typically have a locking mechanism that connects to the vehicle. Improving the stability of the connection between the locking mechanism and the vehicle is an important research direction in this field.

[0006] Summary of the Invention

[0007] The present application provides a locking mechanism, a battery, a vehicle, a locking and unlocking mechanism, and a battery swap station, which can provide reliability.

[0008] In a first aspect, the present application provides a locking mechanism comprising a base, a locking member, and a lock-retaining component. The locking member cooperates with the base and is used to establish a lock or release a lock with a target component. The lock-retaining component can couple with the base and the locking member, respectively, and, through the coupling, maintain the locking member and the target component in a locked state. During the process of establishing or releasing the lock, the lock-retaining component rotates synchronously with the locking member.

[0009] The locking and holding component is coupled with the base and the locking member to reduce the risk of the locking member loosening. During the process of establishing or releasing the lock, the locking and holding component rotates synchronously with the locking member, thereby reducing friction between the locking and holding component and the locking member during rotation.

[0010] In some embodiments, the locking member includes an axial body portion, wherein an anti-rotation structure is provided between at least a portion of the axial body portion and the locking and retaining component; and / or the locking and retaining component includes a first mating structure, and the locking member establishes or unlocks the lock with the target component through a locking and unlocking mechanism. During the process of establishing the lock or unlocking the lock, the locking and retaining component can achieve synchronous rotation of the locking and retaining component and the locking member through the coupling of the first mating structure and the locking and unlocking mechanism.

[0011] By providing an anti-rotation structure or a first matching structure, the locking holding component and the locking member can rotate synchronously during the process of establishing or releasing the lock, thereby reducing the friction between the locking holding component and the locking member during the rotation process.

[0012] In some embodiments, the outer peripheral surface of the shaft body is provided with a first limiting structure, and the locking and retaining component is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate to limit the rotation of the locking and retaining component relative to the shaft body; the dimension of the first limiting structure along the axial direction of the shaft body is greater than the stroke of relative movement of the locking and retaining component and the shaft body along the axial direction.

[0013] When the locking and retaining component moves in the axial direction relative to the shaft body, the first limiting structure can cooperate with the second limiting structure, thereby limiting the rotation of the locking and retaining component relative to the shaft body, reducing the friction between the locking and retaining component and the locking member, slowing down the wear of the locking and retaining component and the locking member, and improving the sealing.

[0014] In some embodiments, the first mating structure of the lock holding component includes a plurality of mating recesses, and the plurality of mating recesses are spaced apart along the circumference of the locking member.

[0015] The plurality of mating recesses can increase the contact area between the locking and retaining component and the locking and unlocking mechanism, reduce stress concentration, and lower the risk of separation between the locking and retaining component and the locking and unlocking mechanism.

[0016] In some embodiments, the base has a housing cavity, the base comprising a first wall and a second wall, respectively, located on either side of the housing cavity along a first direction. The first wall is provided with a first through-hole connected to the housing cavity, and the second wall is provided with a second through-hole connected to the housing cavity. A locking member is movably disposed on the base along the first direction. The locking member comprises a driving portion, a shaft portion, and a locking portion, sequentially arranged along the first direction. The shaft portion is configured to pass through the first through-hole. The locking portion is opposed to the second through-hole along the first direction. The locking member is capable of locking the locking portion extending through the second through-hole to a target component or releasing the locking portion from the target component by rotation. The driving portion is configured to connect to an external locking and unlocking mechanism. The projection of the driving portion is located within the projection of the shaft portion along the first direction. A locking and retaining member is housed within the housing cavity and sleeved on the shaft portion. The locking and retaining member is configured to abut against the first wall and cover at least a portion of the first through-hole. The locking and retaining member is capable of moving relative to the first wall and the shaft portion in the first direction. The first wall is configured to restrict rotation of the shaft portion via the locking and retaining member.

[0017] The locking and retaining component not only provides a seal but also limits the rotation of the shaft by cooperating with the first wall, thereby improving the stability of the connection between the locking component and the vehicle body, reducing the risk of battery detachment, and enhancing the reliability of the battery and vehicle. Unlocking the locking component requires pushing the locking and retaining component, which improves the battery's anti-theft capabilities. Along the first direction, the projection of the drive unit lies within the projection of the shaft. This prevents interference between the drive unit and the structure of the unlocking mechanism that pushes the locking and retaining component when unlocking the locking component.

[0018] In some embodiments, a groove is provided on a side of the first wall facing the second through hole, the first through hole extending through the bottom wall of the groove, and at least a portion of the locking and retaining component is accommodated within the groove. The locking and retaining component is provided with a third limiting structure, and a fourth limiting structure is provided on a side wall of the groove. The third limiting structure cooperates with the fourth limiting structure to limit rotation of the locking and retaining component relative to the first wall.

[0019] The recess can accommodate at least a portion of the locking and retaining component, thereby improving space utilization. The bottom wall of the recess can support the locking and retaining component, thereby reducing the risk of the locking and retaining component falling out of the accommodating cavity. A fourth limiting structure is provided on the side wall of the recess to facilitate the coordination of the fourth limiting structure with the third limiting structure.

[0020] In some embodiments, a projected profile of the driving portion is different from a projected profile of the shaft body portion, and a projected profile of the driving portion along the first direction is a non-regular polygon.

[0021] The projected outline of the driving part is different from the projected outline of the shaft part. The driving part and the shaft part have different shapes. The locking and unlocking mechanism needs to be adapted to the driving part and the shaft part at the same time to achieve unlocking, which can improve the anti-theft ability.

[0022] In some embodiments, the locking member further comprises a flange portion connecting the shaft portion and the locking portion, the flange portion being received in the accommodating cavity and protruding from the outer circumferential surface of the shaft portion. The locking mechanism further comprises a gasket secured to the second wall and separating the second wall from the flange portion. The gasket is provided with a third through-hole, the third through-hole being opposite to the second through-hole in the first direction, and the locking portion is capable of passing through the third through-hole.

[0023] The gasket can separate the flange from the second wall, thereby preventing the flange from directly squeezing the second wall during repeated locking and unlocking of the locking mechanism, reducing wear between the flange and the second wall, increasing the life of the locking member and the base, and improving reliability.

[0024] In some embodiments, the wall of the third through hole is provided with a receiving groove; the locking mechanism further includes a lubricating material received in the receiving groove. The lubricating material lubricates the locking portion, improving smoothness and convenience during repeated assembly and disassembly. The provision of the receiving groove provides storage space for the lubricating material.

[0025] In some embodiments, the locking member further comprises a flange portion connecting the shaft portion and the locking portion, the flange portion being received in the receiving cavity and protruding from the outer circumference of the shaft portion. The locking mechanism further comprises an elastic member, the elastic member being sleeved on the shaft portion and clamped between the flange portion and the locking and retaining component in the first direction.

[0026] The elastic member can exert an elastic force on the locking and retaining member to press the locking and retaining member tightly against the first wall, thereby enabling the first wall to restrict the rotation of the shaft portion through the locking and retaining member, reducing the risk of loosening the connection between the locking member and the target component due to rotation of the shaft portion, thereby improving the stability of the battery. When the battery vibrates, the elastic member can restrain the locking and retaining member, reducing the risk of foreign matter entering the accommodation chamber due to the locking and retaining member separating from the first wall.

[0027] In a second aspect, an embodiment of the present application further provides a battery, which includes the locking mechanism provided in any embodiment of the first aspect.

[0028] In a third aspect, embodiments of the present application further provide a vehicle comprising a vehicle body and the battery provided according to the second aspect, wherein the vehicle body includes a connector, a base is disposed on one side of the connector along a first direction, and a locking member is locked to the connector. The vehicle can achieve battery replacement, thereby rapidly replenishing power.

[0029] In some embodiments, the connector includes a threaded hole, into which the locking member extends and is threadedly connected. The vehicle body also includes a cover, which is disposed on a side of the connector away from the base and covers the threaded hole. The cover can provide a seal, reducing the entry of impurities into the threaded hole, reducing the risk of corrosion of the internal threads of the connector and the external threads of the locking portion, and improving the stability of the threaded connection.

[0030] In some embodiments, the vehicle body further includes a limiting member, and the connecting member is floatingly connected to the limiting member.

[0031] When the relative positions of the connecting member and the locking member deviate, the connecting member can float when subjected to the force of the locking member to adjust the relative positions of the connecting member and the locking member, thereby achieving locking of the connecting member and the locking member.

[0032] In some embodiments, the limiting member includes a first limiting plate, a second limiting plate, and a connecting plate, wherein the second limiting plate is located on a side of the first limiting plate away from the base along the first direction, and the connecting plate connects the first limiting plate and the second limiting plate. The first limiting plate is provided with a first channel, and the second limiting plate is provided with a second channel. The connecting member includes a connecting body and a connecting flange protruding from the outer periphery of the connecting body. In the first direction, at least a portion of the connecting flange is located between the first limiting plate and the second limiting plate. The locking member passes through the first channel and is connected to the connecting body. The connecting body passes through the second channel; in at least one direction perpendicular to the first direction, the size of the second channel is larger than the size of the connecting body.

[0033] The first channel allows for the locking member to be secured to the connecting body. The first and second limiting plates limit the connection flange in a first direction, while the second limiting plate limits the connecting body from the periphery, reducing the risk of the connecting member falling off the limiting member. The connecting body can float within the second channel in at least one direction perpendicular to the first direction.

[0034] In some embodiments, the vehicle body further includes a body structure, with the connector and the base located on either side of the body structure, and the connector connected to the body structure. The body structure includes a rocker beam. The rocker beam has high structural strength, and mounting the battery on the rocker beam can improve battery stability.

[0035] In a fourth aspect, embodiments of the present application further provide a locking and unlocking mechanism for locking or unlocking a locking member of the locking mechanism provided in any embodiment of the first aspect with a target component. The locking and unlocking mechanism includes a coupling portion and a supporting portion connected to each other. The supporting portion is configured to drive the lock-retaining component to move and decouple the lock-retaining component from the base. The coupling portion is configured to engage with the locking member and drive the locking member to rotate when the lock-retaining component is decoupled from the base.

[0036] The support portion can release the coupling between the locking retaining component and the base before the engaging portion engages with the locking member, thereby releasing the anti-rotation limit on the locking member. The unlocking mechanism requires the support portion to unlock the locking member, which can improve the anti-theft capability of the battery.

[0037] In some embodiments, the support portion is a cylindrical structure, and a clamping groove is provided on a side of the clamping portion facing the support portion, and the clamping groove is connected to an avoidance channel formed by the cylindrical structure.

[0038] The cylindrical shape of the support portion can increase the contact area between the support portion and the locking and holding component, improve the uniformity of the force applied to the locking and holding component, and reduce the risk of the locking and holding component and the locking member becoming stuck. The locking groove can accommodate the end of the locking member to achieve the locking connection between the locking member and the engaging portion.

[0039] In some embodiments, the locking and unlocking mechanism further includes a second matching structure, which is provided at an end of the support portion away from the engaging portion and is used for plugging and matching with the locking and retaining component.

[0040] By setting up a second matching structure, the locking and holding component can be engaged with the unlocking mechanism; the unlocking mechanism can be locked with the locking and holding component and the locking member at the same time, so that the locking and holding component and the locking member rotate synchronously, thereby reducing the friction between the locking and holding component and the locking member during the rotation process.

[0041] In the fifth aspect, an embodiment of the present application further provides a battery swap station, which includes the locking and unlocking mechanism provided by any embodiment of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0043] FIG1 is a schematic diagram of a locking mechanism provided in some embodiments of the present application before unlocking;

[0044] FIG2 is a schematic cross-sectional view taken along the AA direction in FIG1 ;

[0045] FIG3 is a schematic diagram of a locking mechanism during an unlocking process provided by some embodiments of the present application;

[0046] FIG4 is another schematic diagram of the locking mechanism during the unlocking process provided by some embodiments of the present application;

[0047] FIG5 is an exploded schematic diagram of the structure shown in FIG1 ;

[0048] FIG6 is a schematic structural diagram of a locking member of a locking mechanism provided in some embodiments of the present application;

[0049] FIG7 is a schematic structural diagram of a locking and retaining component of a locking mechanism provided in some embodiments of the present application;

[0050] FIG8 is another schematic structural diagram of a locking and retaining component of a locking mechanism provided in some embodiments of the present application;

[0051] FIG9 is a schematic structural diagram of a cover plate of a locking mechanism provided in some embodiments of the present application;

[0052] FIG10 is a schematic cross-sectional view of a gasket of a locking mechanism provided in some embodiments of the present application;

[0053] FIG11 is a schematic structural diagram of a battery provided in some embodiments of the present application;

[0054] FIG12 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0055] FIG13 is a schematic structural diagram of a vehicle cover provided by some embodiments of the present application;

[0056] FIG14 is a schematic structural diagram of a connecting member and a limiting member of a vehicle provided in some embodiments of the present application;

[0057] FIG15 is an enlarged schematic diagram of the box in FIG2;

[0058] FIG16 is a schematic structural diagram of a locking and unlocking mechanism provided in some embodiments of the present application;

[0059] FIG17 is a schematic cross-sectional view of the locking and unlocking mechanism shown in FIG16 ;

[0060] FIG18 is a schematic structural diagram of a locking and retaining component of a locking mechanism provided in other embodiments of the present application;

[0061] FIG19 is a schematic structural diagram of a locking and unlocking mechanism provided in other embodiments of the present application;

[0062] FIG20 is a schematic structural diagram of a locking member of a locking mechanism provided in other embodiments of the present application;

[0063] FIG21 is a schematic diagram of a locking mechanism provided in other embodiments of the present application during the locking and unlocking process;

[0064] Figure 22 is a schematic diagram of a battery swap station provided in some embodiments of the present application.

[0065] Description of the accompanying drawings: 1. Locking mechanism; 11. Base; 111. Mounting seat; 1111. Second through hole; 111a. Second wall; 112. Cover plate; 1121. First through hole; 1122. Fourth limiting structure; 1123. Recess; 1124. Cover plate protrusion; 1125. Mounting hole; 112a. First wall; 11a. Accommodating cavity; 12. Locking member; 121. Shaft body; 122. Flange; 123. Locking portion; 124. First limiting structure; 125. First limiting boss; 126. Guide portion; 127. Driving portion; 13. Locking and holding component; 131. Second limiting structure; 132. Third limiting structure; 133. Sealing body; 134. Second limiting boss; 135. Sealing through hole; 136. First matching structure; 14. Elastic member; 15. Gasket; 151. Third through hole; 152. Accommodating groove; 16. Lubricating material; 2. Connector; 21. Threaded hole; 22. Connecting body; 23. Connecting flange; 2a. Target component; 3. Locking and unlocking mechanism; 31. Engaging portion; 311. Engaging groove; 32. Supporting portion; 321. Avoidance channel; 33. Connecting end; 34. Second matching structure; 4. Vehicle; 41. Battery; 411. Box; 5. Vehicle body; 6. Cover; 7. Limiting member; 71. First limiting plate; 711. First channel; 72. Second limiting plate; 721. Second channel; 722. Limiting sub-plate; 723. Limiting groove; 73. Connecting plate; 8. Vehicle body structure; 9. Battery swap station; 91. Support platform; 92. Battery compartment; 93. Battery swap equipment; 94. Stacker; P1, the first convex part; P2, the second convex part; P3, the matching convex part; R1, the first concave part; R2, the second concave part; R3, the matching concave part; X, the second direction; Y, the third direction; Z, the first direction. DETAILED DESCRIPTION

[0066] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0067] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0068] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0070] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0071] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0072] The term "plurality" used in this application refers to two or more (including two).

[0073] In the embodiments of the present application, "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "vertical" includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering.

[0074] Batteries typically have a locking mechanism, which includes a locking element that can be locked to the vehicle body. Typically, the locking element can be switched between a locked and unlocked state with the vehicle body by rotating it forward and reverse. However, during vehicle operation, the locking element may rotate due to vibration, which could cause the locking element to separate from the vehicle body and the battery to fall off, affecting vehicle reliability.

[0075] In view of this, an embodiment of the present application provides a locking mechanism, which utilizes the locking and retaining components of the locking mechanism to limit the rotation of the locking member, thereby improving the stability of the connection between the locking member and the vehicle body, reducing the risk of battery detachment, and improving the reliability of the battery and the vehicle.

[0076] The locking mechanism disclosed in the embodiments of the present application can be used for, but is not limited to, batteries or vehicles, and can also be used for other electrical equipment, such as drones, battery vehicles, electric boats, etc. The locking mechanism can also be used for other devices or equipment that need to be locked to a target component.

[0077] Figure 1 is a schematic diagram of the locking mechanism provided in some embodiments of the present application before unlocking; Figure 2 is a schematic cross-sectional view of Figure 1 taken along the AA direction; Figure 3 is a schematic diagram of the locking mechanism provided in some embodiments of the present application during the unlocking process; Figure 4 is another schematic diagram of the locking mechanism provided in some embodiments of the present application during the unlocking process; Figure 5 is an exploded schematic diagram of the structure shown in Figure 1; Figure 6 is a structural schematic diagram of the locking part of the locking mechanism provided in some embodiments of the present application; Figure 7 is a structural schematic diagram of the locking and retaining component of the locking mechanism provided in some embodiments of the present application; Figure 8 is another structural schematic diagram of the locking and retaining component of the locking mechanism provided in some embodiments of the present application; Figure 9 is a structural schematic diagram of the cover plate of the locking mechanism provided in some embodiments of the present application; Figure 10 is a sectional schematic diagram of the gasket of the locking mechanism provided in some embodiments of the present application.

[0078] 1 to 10 , some embodiments of the present application provide a locking mechanism 1 for connecting to a target component 2 a to fix a device including the locking mechanism 1 to the target component 2 a .

[0079] As an example, the locking mechanism 1 can be used for a battery. As an example, the locking mechanism 1 is used to lock to a vehicle body so as to fix the battery to the vehicle body.

[0080] In some embodiments, the locking mechanism 1 includes a base 11, a locking member 12, and a lock-retaining component 13. As an example, the base 11 is used to carry and install the locking member 12 and the lock-retaining component 13.

[0081] In some embodiments, the locking member 12 cooperates with the base 11 and is used to establish locking or unlocking with the target component 2 a.

[0082] In some embodiments, the locking and holding component 13 can be coupled to the base 11 and the locking member 12 respectively, and maintain the locking member 12 and the target component 2 a in a locked state via the coupling.

[0083] In some embodiments, during the process of establishing the lock or releasing the lock, the lock holding component 13 and the locking element 12 rotate synchronously.

[0084] The lock-retaining member 13 is coupled to the base 11 and the locking member 12, thereby reducing the risk of the locking member 12 becoming loose. During the locking process or the unlocking process, the lock-retaining member 13 rotates synchronously with the locking member 12, thereby reducing friction between the lock-retaining member 13 and the locking member 12 during the rotation process.

[0085] In some embodiments, the base 11 has a receiving cavity 11a. The base 11 includes a first wall 112a and a second wall 111a located on either side of the receiving cavity 11a along a first direction Z. The first wall 112a defines a first through hole 1121 communicating with the receiving cavity 11a, and the second wall 111a defines a second through hole 1111 communicating with the receiving cavity 11a.

[0086] The base 11 may be an integrally formed structure, or may be assembled from a plurality of independently formed components.

[0087] As an example, the first direction Z may be parallel to the vertical direction. Optionally, the first wall 112a may be located at a lower side of the second wall 111a.

[0088] The material of the base 11 can be metal or other high-strength materials. For example, the material of the base 11 can be steel, aluminum alloy or other materials.

[0089] As an example, the first through hole 1121 penetrates the first wall 112a along the first direction Z, and the second through hole 1111 penetrates the second wall 111a along the first direction Z. In the first direction Z, the first through hole 1121 and the second through hole 1111 at least partially overlap.

[0090] The first through hole 1121 can be a circular hole, a square hole, or a hole of other shapes. The second through hole 1111 can be a circular hole, a square hole, or a hole of other shapes.

[0091] For example, the first through hole 1121 and the second through hole 1111 are both circular holes. The diameter of the first through hole 1121 can be larger than, smaller than, or equal to the diameter of the second through hole 1111.

[0092] In some embodiments, the locking member 12 is movably disposed on the base 11 along the first direction Z.

[0093] The locking member 12 may be directly connected to the base 11 or indirectly connected to the base 11 through other components.

[0094] In some embodiments, the locking member 12 includes a shaft portion 121 , and an anti-rotation structure is provided between at least a portion of the shaft portion 121 and the locking and retaining component 13 .

[0095] In some embodiments, the locking member 12 is movably disposed on the base 11 along the first direction Z. The locking member 12 includes a driving portion 127, a shaft portion 121, and a locking portion 123, which are sequentially arranged along the first direction Z. The shaft portion 121 is configured to pass through the first through hole 1121. The locking portion 123 is opposed to the second through hole 1111 along the first direction Z. The locking member 12 can rotate to lock the locking portion 123 extending from the second through hole 1111 to the target component 2a or rotate to release the locking portion 123 from the target component 2a. The driving portion 127 is configured to connect to the external locking and unlocking mechanism 3.

[0096] For example, the rotation axis of the locking member 12 is parallel to the first direction Z.

[0097] The shaft portion 121 and the locking portion 123 may be directly connected or indirectly connected via other parts of the locking member 12 .

[0098] As an example, the shaft portion 121 can extend along the first direction Z to guide the movement of the lock-retaining component 13. The driving portion 127 can be used to connect with the external locking and unlocking mechanism 3 to transmit torque from the locking and unlocking mechanism 3. The locking and unlocking mechanism 3 can drive the driving portion 127 to rotate and translate along the first direction Z. The shaft portion 121 can extend outside the base 11 through the first through hole 1121 to facilitate connection between the driving portion 127 and the locking and unlocking mechanism 3.

[0099] The locking portion 123 can be locked to the target component 2 a by snapping, threading or other means.

[0100] In some embodiments, the locking and holding component 13 is accommodated in the accommodating cavity 11 a and sleeved on the shaft body 121 . The locking and holding component 13 is used to abut against the first wall 112 a and cover at least a portion of the first through hole 1121 .

[0101] The locking and retaining component 13 can cover at least part of the second through hole 1111, thereby reducing impurities entering the accommodating cavity 11a through the second through hole 1111, reducing the risk of corrosion of the locking portion 123, extending the life of the locking portion 123, and improving the stability of the connection between the locking portion 123 and the target component 2a.

[0102] As an example, in the first direction Z, the locking and holding component 13 covers the gap between the shaft body 121 and the hole wall of the first through hole 1121 .

[0103] In some embodiments, the locking and holding component 13 is movable along the first direction Z relative to the first wall 112 a and the shaft body 121 , and the first wall 112 a is configured to restrict rotation of the shaft body 121 through the locking and holding component 13 .

[0104] When the lock holding member 13 abuts against the first wall 112 a , the first wall 112 a restricts the rotation of the shaft portion 121 through the lock holding member 13 .

[0105] In some examples, when the locking and retaining component 13 abuts against the first wall 112a along the first direction Z, the first wall 112a and the locking and retaining component 13 are relatively fixed along the rotation direction of the shaft body 121, and the locking and retaining component 13 and the shaft body 121 are relatively fixed along the rotation direction of the shaft body 121.

[0106] Optionally, when the locking and holding component 13 abuts against the first wall 112a, the first wall 112a engages with the locking and holding component 13 to limit the rotation of the locking and holding component 13; alternatively, when the locking and holding component 13 abuts against the first wall 112a, the first wall 112a limits the rotation of the locking and holding component 13 through magnetic force.

[0107] Optionally, the locking and holding component 13 is engaged with the shaft body 121 to limit the rotation of the shaft body 121 .

[0108] In some embodiments, the projection of the driving portion 127 is located within the projection of the shaft body 121 along the first direction Z. The driving portion 127 is unlikely to interfere with the structure of the locking and unlocking mechanism 3 for pushing the lock holding component 13 .

[0109] Referring to Figures 1 and 2, when it is necessary to release the lock between the locking member 12 and the target component 2a, the external locking and unlocking mechanism 3 can first push the locking and retaining component 13 in the first direction Z to separate the locking and retaining component 13 from the first wall 112a. The first wall 112a no longer restricts the rotation of the shaft portion 121. The locking and unlocking mechanism 3 then drives the driving portion 127 to rotate, causing the locking portion 123 to rotate and disengage from the target component 2a, thereby releasing the lock between the locking mechanism 1 and the target component 2a. After unlocking is completed, the locking and unlocking mechanism 3 can move in the first direction Z away from the locking and retaining component 13, thereby separating from the locking member 12 and the locking and retaining component 13.

[0110] For example, the locking and holding member 13 may be pressed against the first wall 112 a under the action of gravity or other components. The first wall 112 a again limits the rotation of the shaft body 121 through the locking and holding member 13 .

[0111] Correspondingly, when it is necessary to lock the locking member 12 with the target component 2a, the locking and unlocking mechanism 3 can first push the locking and holding component 13 along the first direction Z to separate the locking and holding component 13 from the first wall 112a. The first wall 112a no longer restricts the rotation of the shaft body 121; then, the locking and unlocking mechanism drives the driving part 127 to rotate so that the locking part 123 rotates and locks to the target component 2a. After the locking is completed, the locking and unlocking mechanism 3 can move along the first direction Z in a direction away from the locking and holding component 13, thereby separating from the locking member 12 and the locking and holding component 13. The locking and holding component 13 can be offset against the first wall 112a under the action of gravity or other components, and the first wall 112a again restricts the rotation of the shaft body 121 through the locking and holding component 13.

[0112] In the embodiment of the present application, the locking and retaining component 13 can, while performing a sealing function, limit the rotation of the shaft portion 121 by cooperating with the first wall 112a, thereby improving the stability of the connection between the locking member 12 and the vehicle body, reducing the risk of the battery falling off, and improving the reliability of the battery and the vehicle. Unlocking the locking member 12 requires pushing the locking and retaining component 13 first, which can enhance the anti-theft capability of the battery. Along the first direction Z, the projection of the driving portion 127 is located within the projection of the shaft portion 121. When unlocking the locking member 12, the driving portion 127 is not likely to interfere with the structure of the unlocking mechanism 3 used to push the locking and retaining component 13.

[0113] In some embodiments, the lock maintaining component 13 is configured to rotate synchronously with the locking member 12 during the process of establishing the lock or during the process of releasing the lock.

[0114] During the process of locking the locking portion 123 to the target component 2a and the process of unlocking the locking portion 123 from the target component 2a, the locking member 12 needs to rotate. During the rotation of the locking member 12, the locking retaining member 13 can rotate synchronously with the locking member 12. This can reduce the friction between the locking retaining member 13 and the locking member 12, slow down the wear of the locking retaining member 13 and the locking member 12, improve the sealing performance, and extend the life of the locking mechanism 1.

[0115] In some embodiments, the projected profile of the driving portion 127 is different from the projected profile of the shaft portion 121. The driving portion 127 and the shaft portion 121 have different shapes, and the locking and unlocking mechanism 3 needs to be adapted to both the driving portion 127 and the shaft portion 121 to achieve unlocking, which can improve the anti-theft capability.

[0116] In some embodiments, the projection of the driving portion 127 along the first direction Z has a non-regular polygonal shape.

[0117] For example, the outline of the projection of the driving portion 127 along the first direction Z may be a rectangle, a trapezoid, a star, or other irregular polygons. Optionally, the star may be a five-pointed star, a six-pointed star, or the like.

[0118] The driving portion 127 has an irregular shape, and only specific structures that meet the requirements can cooperate with the driving portion 127, thereby further improving the anti-theft capability.

[0119] In some embodiments, when viewed from the side where the driving portion 127 is located along the first direction Z, the driving portion 127 is smaller than the shaft portion 121 .

[0120] In some alternative embodiments, the driving portion 127 may also be a regular polygon when viewed from the first direction Z. Optionally, the driving portion 127 is a hexagonal head.

[0121] In some embodiments, the locking member 12 further includes a flange portion 122 connecting the shaft portion 121 and the locking portion 123 . The flange portion 122 is accommodated in the accommodating cavity 11 a and protrudes from the outer circumference of the shaft portion 121 .

[0122] In some embodiments, the locking and retaining component 13 at least partially overlaps with the flange portion 122 in the first direction Z. When the locking portion 123 is separated from the target component 2a, the locking and retaining component 13 can stop the flange portion 122, reducing the risk of the locking member 12 falling off through the first through hole 1121.

[0123] In some embodiments, the flange portion 122 further protrudes from the outer circumference of the locking portion 123 .

[0124] In some embodiments, the outer surface of the shaft body 121 is provided with a first limiting structure 124, and the locking and retaining component 13 is provided with a second limiting structure 131. The first limiting structure 124 cooperates with the second limiting structure 131 to limit the rotation of the locking and retaining component 13 relative to the shaft body 121.

[0125] Exemplarily, the first limiting structure 124 and the second limiting structure 131 form an anti-rotation structure between the shaft body and the locking and retaining component.

[0126] The first limiting structure 124 and the second limiting structure 131 can be matched in various ways. For example, the first limiting structure 124 and the second limiting structure 131 can be engaged with each other.

[0127] By setting the first limiting structure 124 and the second limiting structure 131, the relative rotation between the locking and retaining component 13 and the shaft body 121 can be limited, the friction between the locking and retaining component 13 and the locking member 12 can be reduced, the wear of the locking and retaining component 13 and the locking member 12 can be slowed down, and the sealing performance can be improved.

[0128] In some embodiments, one of the first limiting structure 124 and the second limiting structure 131 includes a first recess R1 , and the other of the first limiting structure 124 and the second limiting structure 131 includes a first protrusion P1 , and at least a portion of the first protrusion P1 is accommodated in the first recess R1 .

[0129] There may be one or more first protrusions P1 , and there may be one or more first recesses R1 .

[0130] In some examples, the first limiting structure 124 includes a first protrusion P1 , and the second limiting structure 131 includes a first recess R1 . The first protrusion P1 is inserted into the first recess R1 to limit relative rotation between the locking and holding component 13 and the shaft body 121 .

[0131] In other examples, the first limiting structure 124 includes a first recess R1 , and the second limiting structure 131 includes a first protrusion P1 , which is inserted into the first recess R1 to limit relative rotation between the locking and holding component 13 and the shaft body 121 .

[0132] In some other examples, the first limiting structure 124 includes a first protrusion P1 and a first recess R1, the second limiting structure 131 includes a first protrusion P1 and a first recess R1, the first protrusion P1 of the first limiting structure 124 is inserted into the first recess R1 of the second limiting structure 131, and the first protrusion P1 of the second limiting structure 131 is inserted into the first recess R1 of the first limiting structure 124.

[0133] The shaft body 121 and the locking and holding component 13 are fixed in relative position in the rotation direction through the matching structure of the first protrusion P1 and the first recess R1, thereby reducing friction and wear between the shaft body 121 and the locking and holding component 13.

[0134] In some embodiments, the dimension of the first limiting structure 124 along the first direction Z is greater than the relative movement stroke of the locking and retaining component 13 and the shaft body 121 along the first direction Z. Exemplarily, the first direction Z is parallel to the axial direction of the shaft body 121 .

[0135] The relative movement stroke of the locking and holding component 13 and the shaft body 121 along the first direction Z may refer to the maximum relative displacement of the locking and holding component 13 and the shaft body 121 along the first direction Z during the locking and unlocking processes of the locking mechanism 1 .

[0136] When the locking and holding component 13 moves relative to the shaft body 121 along the first direction Z, the first limiting structure 124 can maintain cooperation with the second limiting structure 131, thereby reducing the rotation of the locking and holding component 13 relative to the shaft body 121.

[0137] In some embodiments, the first limiting structure 124 includes a first protrusion P1 extending along the first direction Z. The second limiting structure 131 includes a first recess R1. In the first direction Z, the first protrusion P1 of the first limiting structure 124 is larger than the first recess R1 of the second limiting structure 131.

[0138] In some embodiments, the first limiting structure 124 and the second limiting structure 131 are spline-coupled. The spline coupling can increase the contact surface between the locking and retaining component 13 and the shaft body 121, reduce stress concentration, and increase the difficulty of relative rotation between the locking and retaining component 13 and the shaft body 121. At the same time, the spline coupling has good guidance performance, reducing the risk of the locking and retaining component 13 and the driving member getting stuck when they move relative to each other along the first direction Z.

[0139] As can be understood, the first retaining structure 124 includes a plurality of first protrusions P1 spaced apart, with first recesses R1 formed between adjacent first protrusions P1; and the second retaining structure 131 includes a plurality of first protrusions P1 spaced apart, with first recesses R1 formed between adjacent first protrusions P1. The plurality of first protrusions P1 of the first retaining structure 124 form the external splines of the shaft body 121, while the plurality of first protrusions P1 of the second retaining structure 131 form the internal splines of the locking and retaining component 13.

[0140] In some embodiments, the locking and retaining component 13 is provided with a third limiting structure 132, and the first wall 112a is provided with a fourth limiting structure 1122. The third limiting structure 132 cooperates with the fourth limiting structure 1122 to limit the rotation of the locking and retaining component 13 relative to the first wall 112a. Exemplarily, the locking and retaining component 13 is coupled to the base 11 via the third limiting structure 132 and the fourth limiting structure 1122.

[0141] The third limiting structure 132 and the fourth limiting structure 1122 can be matched in various ways, for example, the third limiting structure 132 and the fourth limiting structure 1122 can be engaged with each other.

[0142] By setting the third limiting structure 132 and the fourth limiting structure 1122, the relative rotation between the first wall 112a and the locking and retaining component 13 can be limited, so that the first wall 112a can limit the rotation of the shaft body 121 through the locking and retaining component 13, thereby reducing the risk of loosening the connection between the locking member 12 and the target component 2a due to the rotation of the shaft body 121, improving the stability of the battery, and reducing the risk of the battery falling off.

[0143] In some embodiments, one of the third limiting structure 132 and the fourth limiting structure 1122 includes a second protrusion P2, and the other of the third limiting structure 132 and the fourth limiting structure 1122 includes a second recess R2, and at least a portion of the second protrusion P2 is accommodated in the second recess R2.

[0144] There may be one or more second protrusions P2 , and there may be one or more second recesses R2 .

[0145] In some examples, the third limiting structure 132 includes a second protrusion P2, and the fourth limiting structure 1122 includes a second recess R2. The second protrusion P2 is inserted into the second recess R2 to limit the relative rotation between the locking and holding component 13 and the first wall 112a.

[0146] In other examples, the third limiting structure 132 includes a second recess R2, and the fourth limiting structure 1122 includes a second protrusion P2, which is inserted into the second recess R2 to limit the relative rotation between the locking and holding component 13 and the first wall 112a.

[0147] In some other examples, the third limiting structure 132 includes a second protrusion P2 and a second recess R2, the fourth limiting structure 1122 includes a second protrusion P2 and a second recess R2, the second protrusion P2 of the third limiting structure 132 is inserted into the second recess R2 of the fourth limiting structure 1122, and the second protrusion P2 of the fourth limiting structure 1122 is inserted into the second recess R2 of the third limiting structure 132.

[0148] The first wall 112a and the locking and retaining component 13 fix their relative positions in the rotation direction through the matching structure of the second protrusion P2 and the second recess R2, so that the first wall 112a can limit the rotation of the shaft portion 121 through the locking and retaining component 13, thereby improving the stability of the connection between the locking member 12 and the vehicle body and reducing the risk of the battery falling off.

[0149] In some embodiments, the third limiting structure 132 and the fourth limiting structure 1122 are spline-coupled. The spline coupling can increase the contact surface between the locking and retaining component 13 and the first wall 112a, making it more difficult for the locking and retaining component 13 and the first wall 112a to rotate relative to each other, thereby improving the stability of the connection between the locking member 12 and the vehicle body.

[0150] It can be understood that the third retaining structure 132 includes a plurality of second protrusions P2 spaced apart, with second recesses R2 formed between adjacent second protrusions P2; and the fourth retaining structure 1122 includes a plurality of second protrusions P2 spaced apart, with second recesses R2 formed between adjacent second protrusions P2. The plurality of second protrusions P2 of the third retaining structure 132 constitute the external splines of the locking and retaining component 13, while the plurality of second protrusions P2 of the fourth retaining structure 1122 constitute the internal splines of the first wall 112a.

[0151] In some embodiments, a groove 1123 is provided on the side of the first wall 112a facing the second through hole 1111, the first through hole 1121 passes through the bottom wall of the groove 1123, at least part of the locking and retaining component 13 is accommodated in the groove 1123, and the fourth limiting structure 1122 is formed on the side wall of the groove 1123.

[0152] Recess 1123 can accommodate at least a portion of the locking and retaining member 13, thereby improving space utilization. The bottom wall of recess 1123 supports the locking and retaining member 13, thereby reducing the risk of the locking and retaining member 13 being dislodged from the accommodating cavity 11a. A fourth retaining structure 1122 is provided on the sidewall of recess 1123 to facilitate coordination between the fourth retaining structure 1122 and the third retaining structure 132.

[0153] In some embodiments, the groove 1123 is a tapered groove, with the larger end of the groove 1123 facing away from the bottom wall of the groove 1123. The tapered groove can serve as a guide to guide the cooperation between the fourth limiting structure 1122 and the third limiting structure 132.

[0154] In some embodiments, the locking and holding component 13 is generally a conical structure, and a second protrusion P2 and a second recess R2 are provided on the conical surface of the locking and holding component 13 .

[0155] In some embodiments, the locking mechanism 1 further includes an elastic member 14 . The elastic member 14 is sleeved on the shaft portion 121 and clamped between the flange portion 122 and the locking and holding component 13 in the first direction Z.

[0156] The elastic member 14 includes but is not limited to a spring, a sleeve made of elastic material or other elastic components.

[0157] The elastic member 14 can exert an elastic force on the locking and retaining member 13 to press the locking and retaining member 13 against the first wall 112a, thereby allowing the first wall 112a to limit the rotation of the shaft portion 121 through the locking and retaining member 13. This reduces the risk of loosening the connection between the locking member 12 and the target component 2a due to rotation of the shaft portion 121, thereby improving the stability of the battery. When the battery vibrates, the elastic member 14 can restrain the locking and retaining member 13, reducing the risk of foreign matter entering the accommodating cavity 11a due to the locking and retaining member 13 separating from the first wall 112a.

[0158] When the locking and unlocking mechanism 3 pushes the locking and holding component 13 along the first direction Z, the locking and holding component 13 presses the elastic member 14; the elastic member 14 can be compressed and deformed. By providing the elastic member 14, the anti-theft capability of the battery can also be improved.

[0159] In some embodiments, the elastic member 14 includes a spring, and the shaft portion 121 passes through the spring.

[0160] In some embodiments, the locking member 12 further includes a first limiting boss 125 disposed around the shaft body 121 . The first limiting boss 125 is connected to the flange portion 122 , and one end of the elastic member 14 that abuts against the flange portion 122 surrounds the first limiting boss 125 .

[0161] The first limiting boss 125 can limit the elastic member 14 , thereby reducing the displacement of the elastic member 14 and improving stability.

[0162] In some embodiments, the first limiting boss 125 protrudes from the first protrusion P1 in the radial direction of the shaft body 121. The first limiting boss 125 has a larger diameter, which can effectively limit the elastic member 14.

[0163] In some embodiments, the outer diameter of the first limiting boss 125 is slightly smaller than the inner diameter of the elastic member 14 .

[0164] In some embodiments, the locking and retaining component 13 includes a sealing body 133 and a second limiting boss 134, the second limiting boss 134 protrudes from the side of the sealing body 133 facing the flange portion 122, the shaft portion 121 passes through the sealing body 133 and the second limiting boss 134, and the end of the elastic member 14 that is against the sealing body 133 surrounds the second limiting boss 134.

[0165] The second limiting boss 134 can limit the elastic member 14 , thereby reducing the displacement of the elastic member 14 and improving stability.

[0166] In some embodiments, the third limiting structure 132 is disposed on the sealing body 133 .

[0167] In some embodiments, the locking and retaining component 13 is provided with a sealing through hole 135 , which penetrates the sealing body 133 and the second limiting boss 134 along the first direction Z, and the shaft portion 121 passes through the sealing through hole 135 .

[0168] The first protrusion P1 and the second recess R2 of the second limiting structure 131 are formed on the hole wall of the sealing through hole 135 .

[0169] In some embodiments, the elastic member 14 comprises a spring, which has low cost, good elasticity, and is easy to assemble.

[0170] In some embodiments, the locking member 12 further includes a guide portion 126, which is connected to an end of the locking portion 123 away from the shaft portion 121. A cross-section of the guide portion 126 perpendicular to the first direction Z gradually decreases in a direction away from the locking portion 123. Exemplarily, the guide portion 126 is conical, pyramidal, truncated cone, or truncated pyramidal.

[0171] The guide portion 126 can guide the locking portion 123 to connect with the target component 2 a. By providing the guide portion 126 , the difficulty of connecting the locking portion 123 with the target component 2 a can be reduced.

[0172] In some embodiments, the locking portion 123 is threadedly connected to the target component 2a. Exemplarily, the locking portion 123 has external threads.

[0173] In some embodiments, the first limiting structure 124 is disposed on the shaft portion 121 .

[0174] In some embodiments, the base 11 includes a mounting seat 111 and a cover plate 112, the mounting seat 111 includes a second wall 111a, the mounting seat 111 has an opening at one end away from the second wall 111a along the first direction Z, the cover plate 112 is connected to the mounting seat 111 and covers the opening, the cover plate 112 and the mounting seat 111 define a accommodating cavity 11a, and the cover plate 112 includes a first wall 112a.

[0175] The mounting seat 111 and the cover plate 112 are separately provided, which can facilitate the assembly of the locking and holding component 13 and the locking member 12 .

[0176] In some embodiments, the cover plate 112 may be connected to the mounting base 111 by threading, welding, clamping, bonding or other methods.

[0177] In some embodiments, the side of the cover 112 facing the base 11 may have a cover protrusion 1124, which can be inserted into the opening of the base 11. The cover protrusion 1124 can play a positioning role. Exemplarily, the cover protrusion 1124 can be a sidewall of the groove 1123.

[0178] In some embodiments, the cover 112 is detachably connected to the mounting base 111 to facilitate maintenance.

[0179] In some embodiments, the cover plate 112 is provided with a mounting hole 1125 , through which a bolt can pass to fasten the cover plate 112 to the mounting base 111 .

[0180] In some embodiments, the locking mechanism 1 further includes a gasket 15, which is fixed to the second wall 111a and separates the second wall 111a from the flange portion 122. The gasket 15 defines a third through hole 151, which is opposite to the second through hole 1111 along the first direction Z. The locking portion 123 can pass through the third through hole 151.

[0181] The gasket 15 can separate the flange portion 122 from the second wall 111a, thereby preventing the flange portion 122 from directly squeezing the second wall 111a during repeated locking and unlocking of the locking mechanism 1, reducing the wear between the flange portion 122 and the second wall 111a, increasing the life of the locking member 12 and the base 11, and improving reliability.

[0182] In some embodiments, the gasket 15 is a wear-resistant steel pad.

[0183] In some embodiments, the gasket 15 is fixed to the second wall 111 a , thereby maintaining the position of the gasket 15 in the unlocked state and reducing the risk of the gasket 15 moving up and down in the accommodating cavity 11 a .

[0184] In some embodiments, the gasket 15 is bonded to the second wall 111 a .

[0185] In some embodiments, when the flange portion 122 is in close contact with the gasket 15 , the locking member 12 moves into position, and the locking portion 123 is locked with the target component 2 a .

[0186] In some embodiments, a receiving groove 152 is formed on the wall of the third through hole 151 . The locking mechanism 1 further includes a lubricating material 16 received in the receiving groove 152 .

[0187] There may be one or more receiving grooves 152. For example, the receiving groove 152 is an annular groove.

[0188] Illustratively, the lubricating material 16 may include lubricating oil or lubricating grease.

[0189] The lubricating material 16 can lubricate the locking portion 123, thereby improving the smoothness and convenience of the locking portion 123 during repeated assembly and disassembly.

[0190] FIG11 is a schematic diagram of the structure of a battery provided in some embodiments of the present application.

[0191] As shown in FIG. 11 , an embodiment of the present application further provides a battery 41 , which includes the locking mechanism 1 provided in any of the aforementioned embodiments.

[0192] In some embodiments, the battery 41 includes a box body 411 and a battery cell (not shown) accommodated in the box body 411 , and the locking mechanism 1 is mounted on the box body 411 .

[0193] The battery cells can be lithium-ion battery cells, sodium-ion battery cells, sodium-lithium-ion battery cells, lithium metal battery cells, sodium metal battery cells, lithium-sulfur battery cells, magnesium-ion battery cells, nickel-hydrogen battery cells, nickel-cadmium battery cells, lead-acid battery cells, etc.

[0194] In some embodiments, the mounting base 111 is fixed to the box 411 .

[0195] In some embodiments, the box body 411 includes a longitudinal beam and a transverse beam, and the mounting seat 111 can be installed on the longitudinal beam or the transverse beam.

[0196] Optionally, the mounting seat 111 is mounted on the longitudinal beam or the transverse beam by screw connection, riveting, welding or other methods.

[0197] In some embodiments, the battery 41 includes multiple locking mechanisms 1 .

[0198] Figure 12 is a structural schematic diagram of a vehicle provided in some embodiments of the present application; Figure 13 is a structural schematic diagram of a cover body of a vehicle provided in some embodiments of the present application; Figure 14 is a structural schematic diagram of connecting parts and limiting parts of a vehicle provided in some embodiments of the present application; Figure 15 is an enlarged schematic diagram of the box in Figure 2.

[0199] 1-5 and 12-15 , the present invention also provides a vehicle 4 including a vehicle body 5 and a battery 41 . The vehicle body 5 includes a connector 2 . A base 11 is disposed on one side of the connector 2 along a first direction Z, and a locking member 12 is locked to the connector 2 .

[0200] Exemplarily, the connecting member 2 may be a target component 2 a connected to the locking portion 123 .

[0201] The vehicle 4 of the present application can realize battery replacement, thereby quickly replenishing electrical energy.

[0202] Optionally, the first direction Z is parallel to the vertical direction. The base 11 is located at the lower side of the connecting member 2 .

[0203] In some embodiments, the connecting member 2 includes a threaded hole 21 , and the locking member 12 extends into the threaded hole 21 and is threadedly connected to the connecting member 2 .

[0204] Exemplarily, the locking portion 123 is provided with an external thread, and the locking portion 123 extends into the threaded hole 21 and is threadedly connected to the connecting member 2 .

[0205] The threaded connection has high connection strength and is easy to assemble and disassemble.

[0206] In some embodiments, the vehicle body 5 further includes a cover 6 , which is disposed on a side of the connector 2 away from the base 11 and covers the threaded hole 21 .

[0207] The cover 6 can play a sealing role, reduce the impurities that enter the threaded hole 21, reduce the risk of corrosion of the internal thread of the connector 2 and the external thread of the locking portion 123, and improve the stability of the threaded connection.

[0208] For example, the cover body 6 and the lock holding member 13 can be sealed from both sides to improve the sealing performance.

[0209] In some embodiments, the cover body 6 and the connector 2 are formed independently, and the two are fixed by welding, riveting, clamping or other means.

[0210] Optionally, the cover body 6 and the connector 2 are both metal parts, and the cover body 6 and the connector 2 are fixed by welding or riveting. The embodiment of the present application can reduce the difficulty of installing the cover body 6 and improve the convenience of the cover body 6 installation process.

[0211] Alternatively, the cover 6 may be a non-metallic part, which may be fixed to the connector 2 by injection molding or snap-fitting. Using a non-metallic material can reduce weight and meet lightweight requirements.

[0212] In other embodiments, the cover body 6 and the connecting member 2 are integrally formed.

[0213] In some embodiments, the hardness of the connecting member 2 is 430HV-480HV. The connecting member 2 has a relatively high hardness and good wear resistance, which can improve the reliability of repeated assembly and disassembly of the connecting member 2 and the locking member 12.

[0214] In some embodiments, the locking member 12 is a bolt and the connecting member 2 is a nut.

[0215] In some embodiments, the vehicle body 5 further includes a limiting member 7 , and the connecting member 2 is floatingly connected to the limiting member 7 .

[0216] For example, the floating connection may mean that the connecting member 2 can move slightly relative to the limiting member 7 .

[0217] Exemplarily, the connecting member 2 may float relative to the limiting member 7 in one direction, or may float relative to the limiting member 7 in multiple directions.

[0218] During the process of locking the locking member 12 to the connecting member 2, the relative positions of the connecting member 2 and the locking member 12 may deviate (for example, because the vehicle body 5 is tilted); at this time, the connecting member 2 can float when subjected to the force of the locking member 12 to adjust the relative positions of the connecting member 2 and the locking member 12, thereby achieving the locking of the connecting member 2 and the locking member 12.

[0219] In some embodiments, the locking member 12 is provided with a guide portion 126. Even if the position of the connecting member 2 is offset, the guide portion 126 can be inserted into the threaded hole 21 and drive the connecting member 2 to float, thereby aligning and engaging the locking portion 123 with the threaded hole 21.

[0220] In some embodiments, the limiting member 7 includes a first limiting plate 71, a second limiting plate 72, and a connecting plate 73. The second limiting plate 72 is located on a side of the first limiting plate 71 away from the base 11 along the first direction Z. The connecting plate 73 connects the first limiting plate 71 and the second limiting plate 72. The first limiting plate 71 defines a first channel 711, and the second limiting plate 72 defines a second channel 721. The connecting member 2 includes a connecting body 22 and a connecting flange 23 protruding from the outer periphery of the connecting body 22.

[0221] In the first direction Z, at least a portion of the connecting flange 23 is located between the first limiting plate 71 and the second limiting plate 72. The locking member 12 passes through the first passage 711 and is connected to the connecting body 22. The connecting body 22 passes through the second passage 721. In at least one direction perpendicular to the first direction Z, the second passage 721 is larger than the connecting body 22.

[0222] The first channel 711 allows the locking member 12 to be secured to the locking portion 123 of the locking member 12. The first and second limiting plates 71 and 72 limit the connection flange 23 in the first direction Z, while the second limiting plate 72 limits the connection body 22 from the periphery, thereby reducing the risk of the connector 2 falling off the limiting member 7. The connection body 22 can float within the second channel 721 in at least one direction perpendicular to the first direction Z.

[0223] In some embodiments, the second limiting plate 72 includes two limiting sub-plates 722 arranged along the second direction X, and two connecting plates 73. The two limiting sub-plates 722 are respectively connected to the first limiting plate 71 via the two connecting plates 73. The second direction X is perpendicular to the first direction Z. The limiting sub-plates 722 include limiting grooves 723. The limiting grooves 723 of the two limiting sub-plates 722 are opposite to each other along the second direction X. The second channel 721 includes two limiting grooves 723.

[0224] The two limiting sub-plates 722 may abut against each other along the second direction X, or may be spaced apart along the second direction X. The two limiting sub-plates 722 may be connected or separated.

[0225] In some embodiments, the limiting member 7 can be formed by bending.

[0226] The two limiting sub-plates 722 can limit the connection body 22 in the second direction X. In the third direction Y, the two limiting sub-plates 722 can limit the connection body 22 in the third direction Y.

[0227] In some embodiments, the vehicle body 5 further includes a vehicle body structure 8 , the connecting member 2 and the base 11 are respectively located on both sides of the vehicle body structure 8 , and the connecting member 2 is connected to the vehicle body structure 8 .

[0228] For example, the vehicle body structural member 8 may be a cross beam, a longitudinal beam, a floor or other structural members of the vehicle body 5 .

[0229] In some embodiments, the vehicle body structural member 8 includes a rocker beam of the vehicle body 5. The rocker beam has high structural strength, and installing the battery 41 on the rocker beam can improve the stability of the battery 41.

[0230] In some embodiments, the limiting member 7 can be fixed to the vehicle body structural member 8 by screwing, riveting, welding or other methods.

[0231] FIG16 is a schematic structural diagram of a locking and unlocking mechanism provided in some embodiments of the present application; FIG17 is a schematic cross-sectional diagram of the locking and unlocking mechanism shown in FIG16 .

[0232] 1-5 and 16-17 , the embodiment of the present application further provides a locking and unlocking mechanism 3 for locking or unlocking the locking member 12 of the locking mechanism 1 and the target member 2a. The locking and unlocking mechanism 3 includes a coupling portion 31 and a supporting portion 32 connected to each other. The supporting portion 32 is used to drive the lock-retaining member 13 to move and decouple the lock-retaining member 13 from the base 11. The coupling portion 31 is configured to engage with the locking member 12 and drive the locking member 12 to rotate when the lock-retaining member 13 is decoupled from the base 11.

[0233] Illustratively, the locking and unlocking mechanism 3 is used to lock the locking portion 123 to the target component 2a or unlock the locking portion 123 from the target component 2a. The locking and unlocking mechanism 3 is configured to rotate and move along a first direction Z. The locking and unlocking mechanism 3 includes an engaging portion 31 and a supporting portion 32 arranged along the first direction Z. The supporting portion 32 is configured to pass through the first through-hole 1121 and drive the lock-retaining component 13 to move along the first direction Z. The engaging portion 31 is configured to engage with the driving portion 127 and drive the driving portion 127 to rotate when the lock-retaining component 13 is disengaged from the first wall 112a.

[0234] The support portion 32 may be one or more. In some examples, the support portion 32 may be one and have a cylindrical structure. In other examples, the support portion 32 may be multiple and the multiple support portions 32 may be spaced apart along the rotation direction of the locking and unlocking mechanism 3.

[0235] For example, when the locking element 12 needs to be released from the target component 2a, the locking and unlocking mechanism 3 moves below the base 11 and faces the first through-hole 1121. The locking and unlocking mechanism 3 then moves upward in the first direction Z. The support portion 32 contacts the lock-retaining component 13 and lifts the lock-retaining component 13 upward, separating the lock-retaining component 13 from the first wall 112a, thereby releasing the lock-retaining component 13 from the first wall 112a. As the locking and unlocking mechanism 3 continues to move, the engaging portion 31 engages with the driving portion 127. The locking and unlocking mechanism 3 then simultaneously drives the driving portion 127 to rotate and move downward, causing the locking portion 123 to rotate and disengage from the target component 2a, thereby releasing the locking mechanism 1 from the target component 2a. After unlocking is complete, the locking and unlocking mechanism 3 can move in the first direction Z away from the lock-retaining component 13, thereby separating from the locking element 12 and the lock-retaining component 13. The locking and holding component 13 moves downward under the elastic force of the elastic member 14 and abuts against the first wall 112 a , thereby locking the shaft portion 121 and reducing the risk of the shaft portion 121 rotating.

[0236] For example, when locking the locking member 12 and the target component 2a, the locking and unlocking mechanism 3 moves below the base 11 and faces the first through-hole 1121. The locking and unlocking mechanism 3 then moves upward in the first direction Z. The support portion 32 contacts the lock-retaining component 13 and lifts the lock-retaining component 13 upward, separating the lock-retaining component 13 from the first wall 112a and releasing the lock from the first wall 112a. As the locking and unlocking mechanism 3 continues to move, the engaging portion 31 engages with the driving portion 127. The locking and unlocking mechanism 3 then simultaneously drives the driving portion 127 to rotate and move the driving portion 127 upward, causing the locking portion 123 to rotate and lock onto the target component 2a. After locking is complete, the locking and unlocking mechanism 3 can move downward in the first direction Z, separating from the locking member 12 and the lock-retaining component 13. The locking and holding component 13 can be pressed against the first wall 112 a under the elastic force of the elastic member 14 , and the first wall 112 a again limits the rotation of the shaft body 121 through the locking and holding component 13 , while achieving sealing.

[0237] In the embodiment of the present application, the support portion 32 can separate the first wall 112 a from the locking and holding component 13 before the engaging portion 31 engages with the driving portion 127 , thereby releasing the anti-rotation limit on the shaft portion 121 .

[0238] The locking and unlocking mechanism 3 needs to be provided with a support portion 32 in order to unlock the locking member 12 , which can improve the anti-theft capability of the battery 41 .

[0239] In some embodiments, the support portion 32 is a cylindrical structure, and a clamping groove 311 is provided on a side of the engaging portion 31 facing the support portion 32 . The clamping groove 311 is connected to an avoidance channel 321 formed by the cylindrical structure.

[0240] The cylindrical shape of the support portion 32 increases the contact area between the support portion 32 and the locking and retaining member 13, improves the uniformity of the force applied to the locking and retaining member 13, and reduces the risk of the locking and retaining member 13 becoming stuck with the shaft portion 121. The engaging groove 311 can accommodate the end of the shaft portion 121, thereby achieving a locking connection between the shaft portion 121 and the engaging portion 31.

[0241] Exemplarily, the escape channel 321 is a cylindrical channel. When viewed along the first direction Z, the diameter of the escape channel 321 is greater than the diameter of the circumscribed circle of the shaft body 121 , the diameter of the escape channel 321 is greater than the diameter of the circumscribed circle of the driving portion 127 , and the diameter of the escape channel 321 is smaller than the diameter of the locking and retaining component 13 .

[0242] Exemplarily, the outer diameter of the support portion 32 is smaller than the diameter of the first through hole 1121 . The support portion 32 can pass through the first through hole 1121 .

[0243] In some embodiments, the slot 311 is used to accommodate the driving portion 127 of the shaft portion 121 .

[0244] In some embodiments, the dimension of the support portion 32 along the first direction Z is larger than the dimension of the locking slot 311 along the first direction Z. The larger dimension of the support portion 32 can lift the locking and holding component 13 to a greater height, thereby reducing the risk of failure of the locking and holding component 13 to separate from the first wall 112a.

[0245] In some embodiments, when the shaft body 121 enters the avoidance channel 321 , the support portion 32 is separated from the shaft body 121 , and the support portion 32 is spaced apart from the first limiting structure 124 , which can reduce friction.

[0246] In some embodiments, the locking and unlocking mechanism 3 further includes a connecting end 33, which is located on a side of the engaging portion 31 away from the supporting portion 32. The connecting end 33 is configured to connect to a power mechanism, such as a motor, which drives the locking and unlocking mechanism 3 to rotate and translate.

[0247] Figure 18 is a structural schematic diagram of the locking and retaining components of the locking mechanism provided in other embodiments of the present application; Figure 19 is a structural schematic diagram of the locking and unlocking mechanism provided in other embodiments of the present application; Figure 20 is a structural schematic diagram of the locking part of the locking mechanism provided in other embodiments of the present application; Figure 21 is a schematic diagram of the locking mechanism provided in other embodiments of the present application during the locking and unlocking process.

[0248] 18 to 21 , in some embodiments, a first matching structure 136 is provided on a side of the locking and retaining component 13 facing the first through hole 1121 .

[0249] The locking member 12 establishes a lock or unlocks the lock with the target member 2a through the locking and unlocking mechanism 3. During the process of establishing the lock or unlocking the lock, the locking and holding member 13 can achieve synchronous rotation with the locking member 12 by coupling the first matching structure 136 with the locking and unlocking mechanism 3.

[0250] Exemplarily, the first matching structure 136 is used for snap-fitting with the locking and unlocking mechanism 3 .

[0251] Exemplarily, the first matching structure 136 may include a protrusion, a recess or other structures capable of engaging with the locking and unlocking mechanism 3 .

[0252] By setting the first matching structure 136, the locking and retaining component 13 can be engaged with the locking and unlocking mechanism 3; the locking and unlocking mechanism 3 can be locked with the locking and retaining component 13 and the locking member 12 at the same time to drive the locking and retaining component 13 and the locking member 12 to rotate synchronously, thereby reducing the friction between the locking and retaining component 13 and the locking member 12 during the rotation process.

[0253] In some embodiments, the locking and unlocking mechanism 3 further includes a second matching structure 34 , which is disposed at one end of the support portion 32 away from the engaging portion 31 and is configured to be plugged and matched with the locking and retaining component 13 .

[0254] By setting a second matching structure 34, the locking and retaining component 13 can be engaged with the locking and unlocking mechanism 3; the locking and unlocking mechanism 3 can be locked with the locking and retaining component 13 and the locking member 12 at the same time, so that the locking and retaining component 13 and the locking member 12 rotate synchronously, thereby reducing the friction between the locking and retaining component 13 and the locking member 12 during the rotation process.

[0255] In some embodiments, the first mating structure 136 and the second mating structure 34 are mated. One of the first mating structure 136 and the second mating structure 34 includes a mating protrusion P3, and the other of the first mating structure 136 and the second mating structure 34 includes a mating recess R3. The mating protrusion P3 can be inserted into the mating recess R3 to engage the lock and retaining component 13 with the locking and unlocking mechanism 3.

[0256] In some examples, the first mating structure 136 includes a mating protrusion P3 , and the second mating structure 34 includes a mating recess R3 , and the mating protrusion P3 is inserted into the mating recess R3 .

[0257] In other examples, the first mating structure 136 includes a mating recess R3 , and the second mating structure 34 includes a mating protrusion P3 , and the mating protrusion P3 is inserted into the mating recess R3 .

[0258] In some other examples, the first mating structure 136 includes a mating protrusion P3 and a mating recess R3, the second mating structure 34 includes a mating protrusion P3 and a mating recess R3, the mating protrusion P3 of the first mating structure 136 is inserted into the mating recess R3 of the second mating structure 34, and the mating protrusion P3 of the second mating structure 34 is inserted into the mating recess R3 of the first mating structure 136.

[0259] In some embodiments, the first mating structure 136 includes a plurality of mating recesses R3, which are spaced apart along the circumference of the locking member 12. The plurality of mating recesses R3 can increase the contact area between the locking and retaining component 13 and the locking and unlocking mechanism 3, reduce stress concentration, and lower the risk of separation between the locking and retaining component 13 and the locking and unlocking mechanism 3.

[0260] As shown in Figures 20-21, in some embodiments, a section of the shaft portion 121 close to the flange portion 122 may be an optical axis without the first limiting structure 124. This can reduce the size of the first limiting structure 124 along the first direction Z, reduce the weight of the locking member 12, and reduce the difficulty of molding the locking member 12.

[0261] Alternatively, the shaft body 121 may be an optical axis without the first limiting structure 124. This can reduce the size of the first limiting structure 124 along the first direction Z, reduce the weight of the locking member 12, and reduce the difficulty of molding the locking member 12. In this case, there is no limiting retaining structure between the locking and retaining component 13 and the shaft body 121.

[0262] When the support part 32 lifts the locking and retaining component 13, even if the second limiting structure 131 of the locking and retaining component 13 is separated from the first limiting structure 124, or even if there is no limiting and retaining structure between the locking and retaining component 13 and the shaft body 121, the locking and retaining component 13 can still rotate synchronously with the shaft body 121 under the drive of the locking and unlocking mechanism 3.

[0263] Figure 22 is a schematic diagram of a battery swap station provided in some embodiments of the present application.

[0264] 22 , an embodiment of the present application further provides a battery swap station 9 , which includes the locking and unlocking mechanism 3 provided in any of the aforementioned embodiments.

[0265] Exemplarily, the battery swap station 9 may be used to replace the battery 41 of an electrical device, for example, the battery 41 of a vehicle 4 .

[0266] In some embodiments, the battery swap station 9 includes a support platform 91, a battery compartment 92, and a battery swap device 93. The support platform 91 is used to support the vehicle 4. The battery compartment 92 is used to store and charge the battery 41. The battery swap device 93 is configured to be movable between the support platform 91 and the battery compartment 92. The battery swap device 93 may include a locking and unlocking mechanism 3 and is used to replace the battery 41 of the vehicle 4.

[0267] Exemplarily, the battery swap station 9 of the embodiment of the present application can replace the battery 41 according to the following steps: Ⅰ) After the vehicle 4 enters the support platform 91, the battery swap device 93 can be moved to the lower side of the vehicle 4, the locking and unlocking mechanism 3 releases the lock between the locking part 12 and the connecting part 2, and removes the battery 41 from the vehicle body 5; Ⅱ) The battery swap device 93 transfers the removed battery 41 to be charged to the battery compartment 92 for charging, and receives the fully charged battery 41 stored in the battery compartment 92; Ⅲ) The battery swap device 93 moves to the lower side of the vehicle 4 with the fully charged battery 41, and the locking and unlocking mechanism 3 locks the locking part 12 of the fully charged battery 41 to the connecting part 2 of the vehicle body 5 to install the fully charged battery 41 on the vehicle 4; Ⅳ) The vehicle 4 leaves the support platform 91.

[0268] In some embodiments, a stacker 94 is provided in the battery compartment 92, and the stacker 94 is used to transfer the batteries to be charged 41 removed from the battery exchange device 93 to the charging position of the battery compartment 92 for charging, and place the fully charged batteries 41 stored in the battery compartment 92 on the battery exchange device 93.

[0269] In some embodiments, the support platform 91 includes a lifting mechanism, which is used to lift the vehicle 4 so that the battery exchange device 93 can be moved to the lower side of the vehicle 4.

[0270] 1 to 5 , an embodiment of the present application provides a locking mechanism 1 for a battery 41 , which includes a base 11 , a locking member 12 , a locking and retaining component 13 , an elastic member 14 and a gasket 15 .

[0271] The base 11 includes a mounting base 111 and a cover plate 112. The mounting base 111 is used to be mounted on the box 411 of the battery 41. The mounting base 111 has an opening at one end along the first direction Z. The cover plate 112 is connected to the mounting base 111 and covers the opening. The cover plate 112 and the mounting base 111 define a receiving cavity 11a.

[0272] The cover plate 112 defines a first through hole 1121 communicating with the accommodating cavity 11a. The mounting base 111 includes a second wall 111a opposite to the cover plate 112 along the first direction Z. The second wall 111a defines a second through hole 1111 communicating with the accommodating cavity 11a.

[0273] The locking member 12 includes a driving portion 127, a shaft portion 121, a flange portion 122, and a locking portion 123, which are sequentially arranged along the first direction Z. The flange portion 122 is accommodated in the accommodating cavity 11a and protrudes from the outer circumference of the shaft portion 121. The shaft portion 121 passes through the first through hole 1121. The locking portion 123 is opposite the second through hole 1111 along the first direction Z. The driving portion 127 is used to connect to the external locking and unlocking mechanism 3.

[0274] The lock-retaining member 13 is housed within the accommodating cavity 11a and sleeved around the shaft portion 121. The shaft portion 121 and the lock-retaining member 13 are spline-coupled, allowing relative sliding movement between the two members along a first direction Z. The lock-retaining member 13 and the shaft portion 121 are relatively fixed along the rotational direction of the shaft portion 121; during locking and unlocking of the locking mechanism 1, the lock-retaining member 13 and the shaft portion 121 rotate synchronously.

[0275] The elastic member 14 is sleeved around the shaft portion 121 and clamped between the flange portion 122 and the locking and retaining member 13, so that the locking and retaining member 13 abuts against the cover plate 112. The locking and retaining member 13 abuts against the cover plate 112 along the first direction Z and is spline-connected. The locking and retaining member 13 covers at least a portion of the first through-hole 1121. The cover plate 112 can restrict the rotation of the shaft portion 121 through the locking and retaining member 13.

[0276] The locking portion 123 has an external thread. The locking member 12 can lock the locking portion 123 extending from the second through hole 1111 to the connecting member 2 of the vehicle 4 by rotating or unlock the locking portion 123 from the connecting member 2 of the vehicle 4 by rotating.

[0277] The gasket 15 is received in the receiving cavity 11 a and fixed to the second wall 111 a to separate the second wall 111 a from the flange portion 122 . The locking portion 123 passes through the gasket 15 .

[0278] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims

1. A locking mechanism, comprising: A base; A locking member, cooperating with the base, for establishing or releasing a lock with a target component; A locking holding member, capable of being coupled to the base and the locking member respectively, and maintaining the locking member and the target component in a locked state via the coupling; Wherein, during the process of establishing the lock or the process of releasing the lock, the locking holding member and the locking member rotate synchronously.

2. The locking mechanism according to claim 1, wherein, The locking member includes a shaft body portion, and an anti-rotation structure is provided between at least a part of the shaft body portion and the locking holding member; and / or, The locking holding member includes a first mating structure, and the locking member establishes or releases a lock with the target component through a locking and unlocking mechanism. During the process of establishing the lock or the process of releasing the lock, the locking holding member can achieve synchronous rotation with the locking member through the coupling of the first mating structure and the locking and unlocking mechanism.

3. The locking mechanism according to claim 2, wherein, A first limiting structure is provided on the outer peripheral surface of the shaft body portion, and a second limiting structure is provided on the locking holding member. The first limiting structure cooperates with the second limiting structure to limit the rotation of the locking holding member relative to the shaft body portion; The dimension of the first limiting structure in the axial direction of the shaft body portion is greater than the stroke of the relative movement of the locking holding member and the shaft body portion in the axial direction.

4. The locking mechanism according to claim 2, wherein, The first mating structure of the locking holding member includes a plurality of mating recesses, and the plurality of mating recesses are arranged at intervals in the circumferential direction of the locking member.

5. The locking mechanism according to any one of claims 1 to 4, wherein, The base has a receiving cavity. The base includes a first wall and a second wall respectively located on both sides of the receiving cavity along a first direction. The first wall is provided with a first through hole communicating with the receiving cavity, and the second wall is provided with a second through hole communicating with the receiving cavity; The locking member is movably arranged on the base along the first direction. The locking member includes a driving portion, a shaft body portion and a locking portion arranged in sequence along the first direction. The shaft body portion is used to pass through the first through hole, and the locking portion is opposite to the second through hole along the first direction. The locking member can lock the locking portion extending out of the second through hole to the target component by rotation or release the lock between the locking portion and the target component by rotation. The driving portion is used to connect with an external locking and unlocking mechanism. Along the first direction, the projection of the driving portion is located within the projection of the shaft body portion; The locking holding member is received in the receiving cavity and sleeved on the shaft body portion. The locking holding member is used to abut against the first wall and cover at least a part of the first through hole. The locking holding member can move relative to the first wall and the shaft body portion along the first direction. The first wall is configured to limit the rotation of the shaft body portion through the locking holding member.

6. The locking mechanism according to claim 5, wherein, A groove is provided on one side of the first wall facing the second through hole. The first through hole penetrates the bottom wall of the groove, and at least a part of the locking holding member is received in the groove; The locking and holding member is provided with a third limiting structure, and the side wall of the groove is provided with a fourth limiting structure. The third limiting structure cooperates with the fourth limiting structure to limit the rotation of the locking and holding member relative to the first wall.

7. The locking mechanism according to claim 5 or 6, wherein, The contour of the projection of the driving part is different from the contour of the projection of the shaft body part, and the contour of the projection of the driving part along the first direction is a non-regular polygon.

8. The locking mechanism according to any one of claims 5-7, wherein, The locking member further includes a flange portion connecting the shaft body portion and the locking portion. The flange portion is received in the receiving cavity and protrudes from the outer peripheral surface of the shaft body portion; The locking mechanism further includes a gasket. The gasket is fixed to the second wall and separates the second wall from the flange portion; The gasket is provided with a third through hole. The third through hole is opposite to the second through hole along the first direction, and the locking portion can pass through the third through hole.

9. The locking mechanism according to claim 8, wherein, The hole wall of the third through hole is provided with a receiving groove; The locking mechanism further includes a lubricating material received in the receiving groove.

10. The locking mechanism according to any one of claims 5-9, wherein, The locking member further includes a flange portion connecting the shaft body portion and the locking portion. The flange portion is received in the receiving cavity and protrudes from the outer peripheral surface of the shaft body portion; The locking mechanism further includes an elastic member. The elastic member is sleeved on the shaft body portion and is clamped between the flange portion and the locking and holding member in the first direction.

11. A battery, comprising the locking mechanism according to any one of claims 1-10.

12. A vehicle, comprising: A vehicle body, including a connecting member; The battery according to claim 11, wherein the base is disposed on one side of the connecting member along a first direction, and the locking member is locked to the connecting member.

13. The vehicle according to claim 12, wherein, The connecting member includes a threaded hole, and the locking member extends into the threaded hole and is threadedly connected to the connecting member; The vehicle body further includes a cover body. The cover body is disposed on a side of the connecting member away from the base and covers the threaded hole.

14. The vehicle according to claim 12 or 13, wherein, The vehicle body further includes a limiting member. The connecting member is floatingly connected to the limiting member.

15. The vehicle according to claim 14, wherein, The limiting member includes a first limiting plate, a second limiting plate and a connecting plate. The second limiting plate is located on a side of the first limiting plate away from the base along the first direction, and the connecting plate connects the first limiting plate and the second limiting plate; The first limiting plate is provided with a first channel, and the second limiting plate is provided with a second channel; The connecting member includes a connecting body and a connecting flange protruding from the outer periphery of the connecting body. In the first direction, at least a part of the connecting flange is located between the first limiting plate and the second limiting plate; The locking member passes through the first channel and is connected to the connecting body; The connecting body passes through the second channel; in at least one direction perpendicular to the first direction, The size of the second channel is larger than the size of the connecting body.

16. The vehicle according to any one of claims 12 to 15, wherein, The vehicle body further includes a vehicle body structural member. The connecting member and the base are respectively located on two sides of the vehicle body structural member, and the connecting member is connected to the vehicle body structural member; The vehicle body structural member includes a sill beam of the vehicle body.

17. A locking and unlocking mechanism is used to establish or release the locking between the locking member of the locking mechanism according to any one of claims 1-10 and the target component. The locking and unlocking mechanism includes an engaging portion and a supporting portion connected to each other. The supporting portion is used to drive the locking and holding member to move and release the coupling between the locking and holding member and the base. The engaging portion is configured to engage with the locking member and drive the locking member to rotate when the locking and holding member is decoupled from the base.

18. The unlocking and locking mechanism according to claim 17, wherein, The supporting portion is a cylindrical structure. A card slot is provided on one side of the engaging portion facing the supporting portion, and the card slot communicates with an avoidance channel formed by enclosing the cylindrical structure.

19. The unlocking and locking mechanism according to claim 17 or 18, wherein, The locking and unlocking mechanism further includes a second matching structure, which is arranged at one end of the supporting portion away from the engaging portion and is used for plugging and matching with the locking and holding member.

20. A battery swapping station includes the locking and unlocking mechanism according to any one of claims 17-19.

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