Locking mechanism, battery and vehicle

Abstract

The utility model discloses a locking mechanism, a battery and a vehicle, the locking mechanism comprises a base, a locking assembly and an anti-rotation assembly, the locking assembly is arranged on the base, and the locking assembly is configured to be locked to a target component through rotation or unlocking of the locking assembly and the target component; the anti-rotation assembly comprises an anti-rotation piece, an elastic piece, a bearing piece and a retainer, the anti-rotation piece is movably connected to the locking assembly in the axial direction of the locking assembly, the elastic piece is clamped between the base and the bearing piece in the axial direction, and the anti-rotation piece is located on the side, away from the elastic piece, of the bearing piece and abuts against the bearing piece; the retainer is fixed to the base and located on the side, away from the bearing piece, of the anti-rotation piece, and the retainer is used for being matched with the anti-rotation piece and limiting rotation of the locking assembly through the anti-rotation piece. The bearing piece and the base are relatively fixed in the circumferential direction of the locking assembly. According to the locking mechanism, the reliability can be improved, and the service life can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a locking mechanism, a battery and a vehicle. Background Art

[0002] With the development of new energy technology, batteries are used more and more widely, for example, in mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes and electric tools, etc.

[0003] The development of battery technology must take into account many design factors at the same time. For example, in the process of connecting and locking the battery to the electrical device, how to improve the reliability and service life of the locking parts is an important research direction in the battery field. Utility Model Content

[0004] The present application provides a battery locking mechanism, a battery and a vehicle, which can improve reliability and service life.

[0005] In the first aspect, the present application provides a locking mechanism, including a base, a locking assembly and an anti-rotation assembly; the locking assembly is arranged on the base, and the locking assembly is configured to lock to a target component or release the lock between the locking assembly and the target component by rotation; the anti-rotation assembly includes an anti-rotation part, an elastic part, a supporting part and a stopper, the anti-rotation part is movably connected to the locking assembly along the axial direction of the locking assembly, the elastic part is clamped between the base and the supporting part in the axial direction, the anti-rotation part is located on a side of the supporting part away from the elastic part and is against the supporting part, the stopper is fixed to the base and is located on a side of the anti-rotation part away from the supporting part, the stopper is used to cooperate with the anti-rotation part and limit the rotation of the locking assembly through the anti-rotation part; wherein the supporting part and the base are relatively fixed in the circumferential direction of the locking assembly.

[0006] In the technical solution of the embodiment of the present application, when the locking assembly is switched between the locked state and the unlocked state by rotating, the anti-rotation part rotates with the locking assembly. The supporting part can separate the anti-rotation part from the elastic part, so as to reduce the force transmitted to the elastic part during the rotation of the anti-rotation part, reduce the speed difference between the two ends of the elastic part, reduce the risk of torsional failure of the elastic part and the risk of wear of the elastic part, and improve the stability and reliability of the locking mechanism.

[0007] According to some embodiments of the present application, in the circumferential direction of the locking assembly, the anti-rotation member and the locking assembly rotate synchronously, and the anti-rotation member and the supporting member are slidably matched. The supporting member can be slidably matched with the anti-rotation member to reduce friction between the two while providing axial support.

[0008] According to some embodiments of the embodiments of the present application, the supporting member includes a first supporting surface and a second supporting surface that are arranged opposite to each other in the axial direction, the first supporting surface is arranged toward the elastic member, and the surface roughness of the first supporting surface is greater than the surface roughness of the second supporting surface. The first supporting surface has a larger roughness, which can increase the friction between the supporting member and the elastic member and reduce the risk of the elastic member rotating relative to the supporting member. The second supporting surface has a smaller roughness, which can reduce the friction between the supporting member and the anti-rotation member, reduce the resistance to rotation of the anti-rotation member, reduce the wear of the supporting member and the anti-rotation member, and reduce heat generation.

[0009] According to some embodiments of the embodiments of the present application, the supporting member is arranged around the locking assembly, which can increase the contact area between the supporting member and the elastic member, improve the stability of the elastic member, and reduce the interference to the elastic member.

[0010] According to some embodiments of the present application, the base is enclosed to form a receiving cavity, one of the side wall of the receiving cavity and the outer peripheral surface of the supporting member is provided with a positioning portion, and the other is provided with a positioning groove, at least part of the positioning portion is accommodated in the positioning groove, and the positioning portion can move axially in the positioning groove. The positioning portion and the positioning groove form a concave-convex matching structure, so that the supporting member and the base are relatively stationary in the circumferential direction; by providing the positioning portion and the positioning groove, the contact area between the base and the supporting member can be increased, and the stability can be improved.

[0011] According to some embodiments of the present application, there are multiple positioning grooves and multiple positioning parts, the positioning grooves extend axially and are arranged at intervals in the circumferential direction of the locking assembly, and the positioning parts are arranged one by one in correspondence with the positioning grooves. Providing multiple groups of positioning parts and positioning grooves can improve reliability, and multiple positioning parts can share the force, so that the force on each positioning part is reduced and more uniform.

[0012] According to some embodiments of the present application, the positioning portion is provided on the supporting member and protrudes from the outer peripheral surface of the supporting member, and the positioning groove is provided on the base. Providing the protruding positioning portion on the supporting member can facilitate the processing of the positioning groove and the positioning portion, and can reduce the possibility of the positioning portion interfering with other components in the accommodating cavity.

[0013] According to some embodiments of the present application, at least one of the base and the supporting member is provided with a blocking structure, and at least a portion of the blocking structure is located between the elastic member and the locking assembly. The blocking structure can reduce the possibility of radial displacement of the elastic member, thereby reducing the possibility of friction between the elastic member and other components or torsional force due to the connection with the locking assembly.

[0014] According to some embodiments of the present application, the blocking structure is arranged around the locking assembly, which can increase the contact area between the blocking structure and the elastic member and further fix the position of the elastic member.

[0015] According to some embodiments of the present application, a blocking groove is provided on the side of the base facing the elastic member, and / or a blocking groove is provided on the side of the supporting member facing the elastic member, and the elastic member extends into the blocking groove; the side wall of the blocking groove close to the locking assembly is a blocking structure. The blocking structure can be further configured as a blocking groove structure to reduce the possibility of the elastic member detaching from the blocking structure.

[0016] According to some embodiments of the present application, the base is enclosed to form a housing cavity, which includes a first cavity and a second cavity arranged along the axial direction and interconnected, the diameter of the first cavity is smaller than the diameter of the second cavity; a blocking groove is provided on the connecting surface between the first cavity and the second cavity; and a blocking groove is provided on the surface of the supporting member close to the elastic member. The blocking groove is provided on the surface of the base and the supporting member where the extension direction intersects the axial direction, so that the elastic member can be easily inserted therein and the force on the elastic member can be stabilized.

[0017] According to some embodiments of the present application, the plurality of blocking grooves have the same width and are arranged correspondingly in the axial direction. The correspondingly arranged blocking grooves can further make the elastic member bear force evenly and reduce the possibility of tilting or misalignment of the elastic member.

[0018] According to some embodiments of the present application, the anti-rotation member is detachably connected to the locking assembly, and the two opposite sides of the anti-rotation member in the axial direction are respectively in contact with the supporting member and the stopper; the anti-rotation member and the stopper can switch between a disengaged state and a locked state by relative movement along the axial direction. The elastic member can be used to conveniently adjust the locking state of the locking assembly by contacting or separating the anti-rotation member and the stopper, thereby improving the locking and unlocking efficiency of the locking mechanism.

[0019] According to some embodiments of the present application, the anti-rotation member and the stop member are provided with meshing teeth on one side close to each other, and in the locked state, the anti-rotation member and the stop member mesh with each other. The provision of the meshing teeth can make the locking between the anti-rotation member and the stop member stable and reliable, and after either of them rotates, the locked state can be directly restored through axial movement.

[0020] According to some embodiments of the present application, the locking assembly includes a first locking member and a second locking member, the first locking member is movably arranged on the base along its own axial direction, the second locking member is connected to one end of the first locking member along the axial direction, and the second locking member is configured to lock the first locking member to the target component or release the lock between the first locking member and the target component by rotation. The locking mechanism can be conveniently switched between the locked state and the unlocked state by the rotation of the second locking member, thereby improving the locking and unlocking efficiency.

[0021] According to some embodiments of the present application, the second locking member is provided with a connecting hole extending in the axial direction, a portion of the first locking member extends into the connecting hole and is threadedly connected to the second locking member. The thread can conveniently realize the function of the second locking member rotating to drive the first locking member to move axially.

[0022] According to some embodiments of the present application, the first locking member includes a locking rod and a pressure head, the pressure head is connected to one end of the locking rod in the axial direction and is located outside the base, and the end of the locking rod away from the pressure head is accommodated in the base and connected to the second locking member; the outer peripheral surface of the pressure head includes a first surface and a second surface, and in the radial direction of the first locking member, the distance between the first surface and the locking rod is greater than the distance between the second surface and the locking rod. By providing a pressure head that at least partially protrudes in the radial direction, the first locking member can pass through the connection hole of the member to be connected, and then be pressed against the surface around the connection hole by rotating a preset angle.

[0023] In a second aspect, according to an embodiment of the present application, a battery is provided, comprising a box, a battery cell, and a locking mechanism in any embodiment of the first aspect, wherein a plurality of battery cells are arranged in the box, and a base in the locking mechanism is connected to the box. The locking mechanism is arranged in the battery box and can connect the box to other external components, thereby reducing the space required for the connection.

[0024] According to some embodiments of the present application, the battery includes a box, a plurality of battery cells and a locking mechanism, the battery cells are arranged in the box, the box is provided with a mounting hole, and the base is passed through the mounting hole. The locking mechanism is connected to the box through the base, so that the member to be connected is clamped between the first locking member and the base.

[0025] In a third aspect, according to an embodiment of the present application, a vehicle is provided, comprising a vehicle body and a battery in any embodiment of the second aspect, wherein the vehicle body comprises a fixing member, the battery is located at the lower side of the vehicle body, the first locking member is locked to the fixing member, and the battery is used to provide electrical energy. The locking mechanism is provided to reduce the space required for the connection.

[0026] According to some embodiments of the present application, the locking assembly includes a first locking member and a second locking member, the first locking member is movably arranged on the base along its own axial direction, the second locking member is connected to one end of the first locking member along the axial direction, the first locking member includes a locking rod and a pressure head, the pressure head is connected to one end of the locking rod along the axial direction and is located outside the base; the fixing member is provided with a fixing hole, and the pressure head is configured to be able to pass through the fixing hole; in the first direction, the size of the pressure head is larger than the size of the fixing hole; in the second direction, the size of the pressure head is smaller than the size of the fixing hole, and the first direction, the second direction and the axial direction are perpendicular to each other; in the axial direction, a part of the fixing member is clamped between the pressure head and the base. The pressure head can be transmitted from the hole, and then crimped to the area around the hole through rotation and axial displacement, so that it is easy to connect and fix. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0028] Figure 1 A simplified schematic diagram of a vehicle provided for some embodiments of the present application;

[0029] Figure 2 An exploded schematic diagram of a battery provided in some embodiments of the present application;

[0030] Figure 3 A schematic diagram of the structure of a locking mechanism provided in some embodiments of the present application;

[0031] Figure 4 for Figure 3 A cross-sectional view at AA' shown;

[0032] Figure 5 for Figure 4 A magnified view of the area P shown;

[0033] Figure 6 for Figure 3 Another cross-sectional view at AA' shown;

[0034] Figure 7 A schematic diagram of a partial structure of a locking and unlocking mechanism provided in some embodiments of the present application;

[0035] Figure 8 for Figure 7 A cross-sectional view taken along line BB' is shown.

[0036] Reference numerals:

[0037] 1000-Vehicles;

[0038] 100-locking mechanism; 200-battery; 300-controller; 400-motor; 500-fixing part; 600-locking and unlocking mechanism;

[0039] 10-base; 20-locking assembly; 30-anti-rotation assembly; 40-box; 50-battery monomer; 60-fixing hole;

[0040] 11-accommodating chamber; 21-first locking member; 22-second locking member; 31-anti-rotation member; 32-elastic member; 33-stop member; 34-supporting member; 35-blocking structure; 41-first box body; 42-second box body; 43-accommodating portion; 44-mounting hole;

[0041] 111-first cavity; 112-second cavity; 113-connecting surface; 211-locking rod; 212-pressing head; 213-first surface; 214-second surface; 221-connecting hole; 341-first supporting surface; 342-second supporting surface; 343-positioning portion; 344-positioning groove; 351-blocking groove;

[0042] X-axis direction; Y-first direction; Z-second direction. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] In the present application, the term "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; meanwhile, "vertical" includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering.

[0052] In electrical devices such as vehicles, batteries are usually equipped with a locking mechanism, which can be used to lock the battery in a preset position on the vehicle body. Usually, the locking member can switch the locking state and unlocking state between the locking member and the battery and the vehicle body by forward and reverse rotation, and an anti-rotation component is provided inside to prevent accidental rotation. However, the torque on both ends of the elastic member in the anti-rotation component is not uniform, resulting in greater wear and a reduced service life.

[0053] In view of this, an embodiment of the present application provides a locking mechanism, in which a supporting member can be set in the locking mechanism so that both ends of the elastic member are synchronously stationary with the base in the circumferential direction, thereby reducing the possibility of uneven torsional force at both ends during rotation, thereby improving reliability and service life.

[0054] The locking mechanism disclosed in the embodiment of the present application can be used for batteries or vehicles but is not limited thereto, and can also be used for other electrical equipment, such as drones, battery vehicles, electric ships, etc. The locking mechanism can also be used for other devices or equipment that need to be locked to a target component.

[0055] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries, such as mobile phones, portable devices, laptop computers, electric vehicles, electric cars, ships, spacecraft, electric toys and electric tools, etc., wherein spacecrafts include airplanes, rockets, space shuttles and spacecrafts, etc., electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc., and electric tools include metal cutting power tools, grinding power tools, assembly power tools and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers.

[0056] The battery described in the embodiments of the present application is not limited to being applicable to the electrical devices described above, but for the sake of simplicity, the following embodiments are all described using electric vehicles as examples.

[0057] See also Figure 1 , Figure 1 A simple schematic diagram of a vehicle provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 200 may be provided inside the vehicle 1000, and specifically, for example, a battery 200 may be provided at the bottom, front or rear of the vehicle 1000. The battery 200 may be used to power the vehicle 1000, for example, the battery 200 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 300 and a motor 400, and the controller 300 is used, for example, to control the battery to power the motor 400. The battery 200 may be used for starting and navigating the vehicle 1000, and of course, the battery 200 may also be used to drive the vehicle 1000, replacing or partially replacing fuel or natural gas to provide drive for the vehicle 1000.

[0058] Figure 2 Schematic diagram of an explosion of a battery provided in some embodiments of the present application. Figure 2 As shown, the battery 200 includes a case 40 and a battery cell 50 , wherein the battery cell 50 is accommodated in the case 40 .

[0059] The box body 40 is used to accommodate the battery cell 50, and the box body 40 can be a variety of structures. In some embodiments, the box body 40 may include a first box body portion 41 and a second box body portion 42, the first box body portion 41 and the second box body portion 42 cover each other, and the first box body portion 41 and the second box body portion 42 jointly define a receiving portion 43 for accommodating the battery cell 50. The second box body portion 42 may be a hollow structure with one end open, the first box body portion 41 is a plate-like structure, and the first box body portion 41 covers the open side of the second box body portion 42 to form a box body 40 with a receiving portion 43; the first box body portion 41 and the second box body portion 42 may also be a hollow structure with one side open, and the open side of the first box body portion 41 covers the open side of the second box body portion 42 to form a box body 40 with a receiving portion 43. Of course, the first box body portion 41 and the second box body portion 42 may be a variety of shapes, such as a cylinder, a cuboid, etc.

[0060] In the battery 200, there can be one or more battery cells 50. If there are more than one battery cell 50, the battery cells 50 can be connected in series, in parallel, or in a mixed connection. A mixed connection means that the battery cells 50 are both connected in series and in parallel. The battery cells 50 can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the battery cells 50 can be accommodated in the box 40; of course, the battery cells 50 can also be connected in series, in parallel, or in a mixed connection to form a battery module, and then the battery modules can be connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box 40.

[0061] Next, combine with Figure 3 To Attachment Figure 8 The structure of the locking mechanism 100 will be described.

[0062] Please also read Figures 3 to 5 , Figure 3 A schematic diagram of the structure of a locking mechanism provided in some embodiments of the present application, Figure 4 for Figure 3 A cross-sectional view at AA' is shown, Figure 5 for Figure 4 Magnified view of area P shown.

[0063] In a first aspect, the present application provides a locking mechanism 100, comprising a base 10, a locking assembly 20 and an anti-rotation assembly 30; the locking assembly 20 is disposed on the base 10, and the locking assembly 20 is configured to lock to a target component or release the lock between the locking assembly 20 and the target component by rotation; the anti-rotation assembly 30 comprises an anti-rotation member 31, an elastic member 32, a supporting member 34 and a stopper 33, and the anti-rotation member 31 is movably connected to the locking assembly 20 along an axial direction X of the locking assembly 20 0, the elastic member 32 is clamped between the base 10 and the supporting member 34 in the axial direction X, the anti-rotation member 31 is located on the side of the supporting member 34 away from the elastic member 32 and abuts against the supporting member 34, the stop member 33 is fixed to the base 10 and is located on the side of the anti-rotation member 31 away from the supporting member 34, the stop member 33 is used to cooperate with the anti-rotation member 31 and limit the rotation of the locking assembly 20 through the anti-rotation member 31; wherein the supporting member 34 and the base 10 are relatively fixed in the circumferential direction of the locking assembly 20.

[0064] The locking mechanism 100 can be applied to a battery, and further applied to detachably connect the battery with other external components. The locking mechanism 100 includes a base 10 for providing support and bearing, a locking assembly 20 for achieving compression locking, and an anti-rotation assembly 30 for maintaining the locked state after locking.

[0065] Optionally, the base 10 may be cylindrical and at least partially surround the locking assembly 20 and the anti-rotation assembly 30 therein, so as to facilitate the locking assembly 20 to move along its own axial direction X. The base 10 may have an accommodating cavity, and through holes are respectively provided on two opposite sides of the accommodating cavity along the axial direction X, and both ends of the locking assembly 20 may be exposed to the outside through the through holes.

[0066] Optionally, the outer surface of the base 10 can be cylindrical or nearly cylindrical to facilitate installation. The base 10 can be an integrally formed structure or assembled from a plurality of independently formed parts. The base 10 can be made of metal or other high-strength materials. For example, the base 10 can be made of steel, aluminum alloy or other materials.

[0067] Optionally, the locking assembly 20 is disposed on the base 10 and can achieve compression locking and unlocking with the target component through axial X movement of its internal components.

[0068] Optionally, the anti-rotation assembly 30 is disposed between the locking assembly 20 and the base 10, and can fix the relative position of at least part of the structure in the locking assembly 20 with the base 10 in the circumferential direction, that is, the locking assembly 20 is locked so that it cannot rotate, thereby being able to stably drive at least part of the structure therein to move along the axial direction X. The anti-rotation assembly 30 can be optionally disposed at least partially around the locking assembly 20.

[0069] Exemplarily, the anti-rotation assembly 30 may include an anti-rotation part 31 connected to the locking assembly 20 and capable of synchronously rotating in the circumferential direction, a stopper 33 connected to the base 10 and synchronously stationary in the circumferential direction, an elastic part 32 for pressing the anti-rotation part 31 against the stopper 33, and a supporting part 34 clamped between the elastic part 32 and the anti-rotation part 31.

[0070] Optionally, the anti-rotation member 31 can be sleeved on the locking assembly 20, the locking assembly 20 can be configured as a polygon, and the anti-rotation member 31 can have a through hole of a corresponding shape, so that the two can rotate synchronously. Alternatively, one of the locking assembly 20 and the anti-rotation member 31 can be provided with a protruding portion protruding in the radial direction, and the other can be provided with a concave portion recessed in the radial direction, so that the protruding portion at least partially extends into the concave portion, so that the two can rotate synchronously.

[0071] Optionally, the stopper 33 is connected to the inner side of the base 10 and keeps synchronization with the base 10 in the circumferential direction. When any component in the locking assembly 20 rotates, the stopper 33 and the base 10 can keep synchronously stationary in the circumferential direction. Similar to the setting of the anti-rotation member 31, the stopper 33 can achieve synchronization in the circumferential direction by setting a protrusion / recess or setting it in a polygonal structure. Alternatively, the stopper 33 can be fixedly connected to the base 10 to achieve synchronization.

[0072] Optionally, the elastic member 32 is disposed on the side of the anti-rotation member 31 away from the stop member 33, and is used to press the anti-rotation member 31 against the stop member 33 in the axial direction X. The elastic member 32 extends as a whole along the axial direction X and can be compressed or expanded in this direction. One end of the elastic member 32 is indirectly pressed against the surface of the side of the anti-rotation member 31 away from the stop member 33 through the supporting member 34, and the other end opposite can abut against the base 10, so that it can exert a force along the axial direction X on the anti-rotation member 31 through its own compression, so that the anti-rotation member 31 and the stop member 33 are coupled to each other, and through this coupling relationship, the second locking member 22 is synchronized with the base 10 in the circumferential direction and is stationary, preventing the second locking member 22 from rotating.

[0073] Optionally, the elastic member 32 may be a spring and is sleeved on the second locking member 22 .

[0074] The supporting member 34 is sandwiched between the elastic member 32 and the anti-rotation member 31, and can transmit the force in the axial direction X. The supporting member 34 can move in the axial direction X relative to the locking assembly 20 and be synchronously stationary with the base 10 in the circumferential direction, thereby enabling the two ends of the elastic member 32 to abut against two relatively stationary components in the circumferential direction, thereby making the elastic member 32 evenly stressed in the circumferential direction, reducing the possibility of being twisted, reducing the wear of the elastic member 32, and increasing the service life.

[0075] In some optional embodiments, in the circumferential direction of the locking assembly 20 , the anti-rotation component 31 rotates synchronously with the locking assembly 20 , and the anti-rotation component 31 and the supporting component 34 are slidably matched.

[0076] Optionally, the side of the support member 34 close to the anti-rotation member 31 can be set as a sliding friction surface, so that the support member 34 and the anti-rotation member 31 are slidably matched and have a low friction force, so that when the anti-rotation member 31 and the locking assembly 20 rotate synchronously, the support member 34 can remain synchronously stationary with the base 10 in the circumferential direction. Sliding fit means that the surface of the support member 34 can abut against the surface of the anti-rotation member 31, and can move relatively in a sliding manner during the rotation of the anti-rotation member 31.

[0077] Optionally, the two side surfaces of the supporting member 34 opposite to each other in the axial direction X may be perpendicular to the axial direction X, or the two side surfaces of the supporting member 34 may be conical surfaces so as to have a certain angle with the axial direction X.

[0078] Optionally, during the process of unlocking or locking using the locking mechanism 100 , the support member 34 and the anti-rotation member 31 may be lubricated by grease or the like to reduce friction loss therebetween.

[0079] In some optional embodiments, the supporting member 34 includes a first supporting surface 341 and a second supporting surface 342 which are arranged opposite to each other in the axial direction X, the first supporting surface 341 is arranged toward the elastic member 32, and the surface roughness of the first supporting surface 341 is greater than the surface roughness of the second supporting surface 342.

[0080] Optionally, in addition to the aforementioned method of providing lubricating grease, the surface roughness of the first supporting surface 341 may be reduced by grinding, polishing, etc., thereby reducing the friction between the supporting component 34 and the anti-rotation component 31 and further reducing friction loss.

[0081] Optionally, the supporting member 34 has a first supporting surface 341 facing the elastic member 32, and the first supporting surface 341 may have a certain degree of roughness to stabilize the relative position between the supporting member 34 and the elastic member 32. Meanwhile, the supporting member 34 has a second supporting surface 342 facing the anti-rotation member 31, and the second supporting surface 342 may be relatively smooth to enable the anti-rotation member 31 and the supporting member 34 to rotate relative to each other.

[0082] In some optional embodiments, the support member 34 is disposed around the locking assembly 20 .

[0083] Optionally, the supporting member 34 can be an annular gasket and is arranged around the locking assembly 20, so that the elastic member 32 can completely abut against the supporting member 34, avoiding the possibility of the elastic member 32 tilting or directly contacting the anti-rotation member 31 through the gap due to compression deformation, thereby improving the overall reliability of the locking mechanism 100.

[0084] Optionally, the supporting member 34 may be a circular ring washer with the same thickness at all locations, and is sleeved on the locking assembly 20 .

[0085] In some optional embodiments, the base 10 encloses a accommodating cavity 11, and one of the side walls of the accommodating cavity 11 and the outer peripheral surface of the supporting member 34 is provided with a positioning portion 343, and the other is provided with a positioning groove 344, at least a portion of the positioning portion 343 is accommodated in the positioning groove 344, and the positioning portion 343 can move along the axial direction X in the positioning groove 344.

[0086] Optionally, one of the base 10 and the supporting member 34 may be provided with a protruding positioning portion 343, and the other may be provided with a recessed positioning groove 344, so that the positioning portion 343 and the positioning groove 344 cooperate with each other to position the supporting member 34 in the circumferential direction, thereby increasing the possibility of the supporting member 34 and the base 10 being synchronously stationary or synchronously rotating in the circumferential direction.

[0087] Optionally, the positioning portion 343 may be in a hemispherical shape, a cylindrical shape, a rectangular parallelepiped shape, etc. that protrude in the radial direction, and the shape of the positioning groove 344 may match the corresponding positioning portion 343 .

[0088] Optionally, the positioning portion 343 may be a small structural member that can be compressed / popped out by a spring or other structure. In this case, the positioning groove 344 may be a groove with a relatively small extension in the axial direction X, and may not be connected to the openings at both ends of the base 10 and the supporting member 34 in the axial direction X. It is only necessary to make the positioning groove 344 have a space to accommodate the positioning portion 343 to move with the supporting member 34 in the axial direction X. When using the positioning portion 343, it may be first compressed into the supporting member 34 or the base 10, and then installed in alignment with the positioning groove 344, so that the positioning portion 343 pops out to a protruding state under the action of elastic force, and the alignment connection can be completed.

[0089] Alternatively, the positioning portion 343 may be integrally formed with the base 10 or the supporting member 34 , and the positioning groove 344 may be formed as a groove body extending along the axial direction X, so that the positioning portion 343 may slide from an opening on the axial direction X along the groove body into a preset position.

[0090] Optionally, one of the positioning portion 343 and the positioning groove 344 is provided on the supporting member 34. In the process of locking / unlocking the locking mechanism 100, the supporting member 34 needs to move a certain distance in the axial direction X together with the anti-rotation member 31 so that the anti-rotation member 31 and the stop member 33 are separated from each other. Therefore, the positioning groove 344 should have a certain extension dimension in the axial direction X so that the positioning portion 343 can move therein, thereby reducing the possibility of interference with the movement of the anti-rotation member 31.

[0091] In some optional embodiments, there are multiple positioning grooves 344 and multiple positioning portions 343 . The positioning grooves 344 extend along the axial direction X and are arranged at intervals in the circumferential direction of the locking assembly 20 . The positioning portions 343 and the positioning grooves 344 are arranged in a one-to-one correspondence.

[0092] Optionally, the base 10 and the supporting member 34 may be provided with a plurality of positioning portions 343 and a plurality of positioning grooves 344 , and the positioning portions 343 and the positioning grooves 344 may be provided in a one-to-one correspondence, so that the limiting in the circumferential direction is stable and reliable.

[0093] Optionally, multiple groups of positioning portions 343 and positioning grooves 344 can be arranged at intervals in the circumferential direction of the locking assembly 20 to improve the reliability of circumferential positioning through multiple groups of mutually cooperating positioning assemblies, while sharing the circumferential torsional force and improving the reliability of the overall structure.

[0094] Optionally, in an embodiment in which a plurality of positioning portions 343 and a plurality of positioning grooves 344 are provided, each positioning portion 343 may be provided on the supporting member 34, or each positioning portion 343 may be provided on the base 10, or a plurality of positioning portions 343 may be provided on the base 10 and the supporting member 34, respectively.

[0095] In some optional embodiments, the positioning portion 343 is disposed on the supporting member 34 and protrudes from the outer peripheral surface of the supporting member 34 , and the positioning groove 344 is disposed on the base 10 .

[0096] Optionally, the positioning portions 343 can be arranged on the supporting member 34. The supporting member 34 is small in size and has a simpler structure. Arranging the positioning portions 343 on the outer peripheral surface of the supporting member 34 can facilitate the processing of the supporting member 34 and the base 10, and at the same time can reduce the possibility of the positioning portions 343 protruding from the inside of the base 10 interfering with other components installed on the base 10.

[0097] Optionally, the plurality of positioning portions 343 may be distributed at equal intervals along the circumference of the supporting member 34 .

[0098] In some optional embodiments, at least one of the base 10 and the supporting member 34 is provided with a blocking structure 35 , and at least a portion of the blocking structure 35 is located between the elastic member 32 and the locking assembly 20 .

[0099] Optionally, the base 10 and the supporting member 34 are respectively abutted against the elastic member 32, and at least one of the abutting surfaces thereof may be provided with a blocking structure 35. The blocking structure 35 can radially limit the elastic member 32 through a partial area located between the elastic member 32 and the locking assembly 20, thereby reducing the possibility of radial misalignment of the elastic member 32.

[0100] Optionally, the barrier structure 35 may be a boss structure protruding in a direction close to the elastic member 32 , or the barrier structure 35 may be a groove wall portion accommodating at least a portion of the elastic member 32 .

[0101] Optionally, one side surface of the barrier structure 35 can be arranged around at least a portion of the locking assembly 20 and abut against the inner wall of the elastic member 32, so that the elastic member 32 is partially sleeved on the barrier structure 35 to provide a good limiting effect in the radial direction, thereby reducing the possibility of the elastic member 32 rotating due to contact with the locking assembly 20.

[0102] In some optional embodiments, the barrier structure 35 is disposed around the locking assembly 20 .

[0103] Optionally, the barrier structure 35 can be annular and completely extend in the circumferential direction of the locking assembly 20 to provide support and positioning in all radial directions, thereby further improving the reliability of radial limitation of the elastic member 32 and reducing the possibility of misalignment of the elastic member 32 due to multiple compressions and stretches.

[0104] In some optional embodiments, a blocking groove 351 is provided on the side of the base 10 facing the elastic member 32, and / or a blocking groove 351 is provided on the side of the supporting member 34 facing the elastic member 32, and the elastic member 32 extends into the blocking groove 351; the side wall of the blocking groove 351 close to the locking assembly 20 is a blocking structure 35.

[0105] Optionally, the blocking structure 35 can be in the form of being arranged in a blocking groove 351, that is, a blocking groove 351 is arranged on the side of the base 10 or the supporting member 34 facing the elastic member 32, the end of the elastic member 32 extends into the blocking groove 351, and the inner side wall of the blocking groove 351 is used as the blocking structure 35.

[0106] Optionally, the opening of the blocking groove 351 is located on the aforementioned abutting surface and is recessed along the axial direction X, and the width thereof may be slightly greater than the width of the elastic member 32 in the radial direction.

[0107] Optionally, the depth of the blocking groove 351 is set according to the extension dimension of the elastic member 32 in the axial direction X, so that the elastic member 32 is still in a compressed state when the anti-rotation member 31 abuts against the stop member 33, and the size of the elastic member 32 after being fully compressed is greater than the depth of the blocking groove 351.

[0108] Optionally, the central axis of the blocking groove 351 may coincide with the central axis of the locking assembly 20 .

[0109] By configuring the blocking structure 35 as a side wall of the blocking groove 351 , the radial limiting can be further stabilized and reliable, thereby improving the overall reliability of the locking mechanism 100 .

[0110] In some optional embodiments, the base 10 encloses a accommodating cavity 11, which includes a first cavity 111 and a second cavity 112 arranged along the axial direction and interconnected, the diameter of the first cavity 111 is smaller than the diameter of the second cavity 112; a blocking groove 351 is provided on the connecting surface 113 between the first cavity 111 and the second cavity 112; and a blocking groove 351 is provided on the side surface of the supporting member 34 close to the elastic member 32.

[0111] Optionally, the base 10 is a cylindrical structure and encloses a receiving cavity 11. The receiving cavity 11 can be cylindrical or composed of multiple cylindrical cavities of different diameters connected together. The side wall of the receiving cavity 11 can be provided with a protruding structure or a concave structure for connection or limiting.

[0112] Optionally, the accommodating cavity 11 includes a first cavity 111 and a second cavity 112, which are interconnected and have different diameters. Thus, the side wall enclosing the accommodating cavity 11 forms a connecting surface 113 at the connection between the two cavities, the extension direction of which intersects the axial direction X. The connecting surface 113 can be annular and constitute a partial wall surface of the second cavity 112 with a larger diameter.

[0113] Optionally, the anti-rotation assembly 30 is disposed in the second cavity 112 with a larger diameter so that it has sufficient rotation space. The elastic member 32 in the anti-rotation assembly 30 can abut against the connecting surface 113 and be supported in the axial direction X through the connecting surface 113 .

[0114] Optionally, the blocking groove 351 on the base 10 may be disposed on the connecting surface 113 , and the opening of the blocking groove 351 is located on the connecting surface 113 and is recessed in a direction away from the elastic member 32 .

[0115] A blocking groove is arranged on the surface where the extension direction of the base and the supporting member intersects with the axial direction, so as to facilitate the elastic member to extend therein.

[0116] In some optional embodiments, the plurality of blocking grooves 351 have the same width and are correspondingly arranged in the axial direction X.

[0117] Optionally, in an embodiment where blocking grooves 351 are provided at both ends of the elastic member 32 in the axial direction X, the blocking grooves 351 on both sides may be provided opposite to each other in the axial direction X so that the elastic member 32 is evenly stressed and is not easily bent or tilted.

[0118] Optionally, each blocking groove 351 can have the same width, diameter and depth; or, the blocking groove 351 arranged on the supporting member 34 can have a shallower depth to reduce the thickness of the supporting member 34 and thereby reduce the size of the locking mechanism 100 in the axial direction X.

[0119] In some optional embodiments, the anti-rotation component 31 is detachably connected to the locking assembly 20, and the anti-rotation component 31 is respectively abutted against the supporting component 34 and the stop component 33 on opposite sides in the axial direction X; the anti-rotation component 31 and the stop component 33 can switch between a disengaged state and a locked state through relative movement along the axial direction X.

[0120] Optionally, the anti-rotation component 31 can abut against the stop component 33 in the axial direction X and cooperate with each other to limit the locking assembly 20 in the circumferential direction. After the anti-rotation component 31 moves along the axial direction X and disengages from the stop component 33, the coupling between the two can be invalidated, and the stop component 33 no longer restricts the rotation of the anti-rotation component 31.

[0121] Optionally, one of the anti-rotation member 31 and the stop member 33 may be provided with a protrusion, and the other may be provided with a recessed portion, the protrusion being inserted into the recessed portion so that the anti-rotation member 31 and the stop member 33 are synchronized in the circumferential direction, and one or more protrusions and recessed portions may be provided, and the two may be provided in a one-to-one correspondence. Optionally, the protrusion may extend along the axial direction X, or the protrusion may extend in a direction having a certain angle with the axial direction X, so that the abutment surface between the anti-rotation member 31 and the stop member 33 extends in an oblique direction.

[0122] In the locking mechanism 100 , the locking state of the locking assembly 20 can be conveniently adjusted by the abutment or separation of the anti-rotation member 31 and the stop member 33 through the cooperation of the elastic member 32 .

[0123] In some optional embodiments, the anti-rotation member 31 and the stop member 33 are respectively provided with meshing teeth on one side close to each other, and in the locked state, the anti-rotation member 31 and the stop member 33 are meshed with each other.

[0124] On the basis that the anti-rotation member 31 and the stop member 33 are coupled to each other, both of them may be provided with meshing teeth, and the meshing teeth respectively provided on the two members can mesh with each other and realize connection and fixation in the circumferential direction.

[0125] Optionally, the meshing surface between the anti-rotation component 31 and the stopper 33 may be a plane perpendicular to the axial direction X, or the meshing surface may be a funnel-shaped curved surface having a certain angle with the axial direction X.

[0126] Arranging the anti-rotation member 31 and the stop member 33 to be connected through tooth engagement can make the locking between the anti-rotation member 31 and the stop member 33 stable and reliable, and after the anti-rotation member 31 rotates with the second locking member 22, the anti-rotation member 31 can still smoothly engage and position with the stop member 33, eliminating the step of finding the corresponding position for docking, thereby improving the reliability of the locking mechanism 100.

[0127] In some optional embodiments, the locking assembly 20 includes a first locking member 21 and a second locking member 22. The first locking member 21 is movably disposed on the base 10 along its own axial direction X, and the second locking member 22 is connected to one end of the first locking member 21 along the axial direction X. The second locking member 22 is configured to lock the first locking member 21 to the target component or release the lock between the first locking member 21 and the target component by rotation.

[0128] Optionally, the locking assembly 20 includes a first locking member 21 and a second locking member 22 that can be rotatably connected, both of which are mounted on the base 10. The base 10 can have a accommodating cavity, and through holes are respectively provided on two opposite sides of the accommodating cavity along the axial direction X. The first locking member 21 can extend from one of the through holes, and the second locking member 22 can be at least partially exposed to the outside through the other through hole.

[0129] Optionally, the locking assembly 20 includes a first locking member 21 and a second locking member 22, wherein at least the first locking member 21 is capable of moving relative to the base 10 along the axial direction X, and the second locking member 22 can be optionally kept fixed in relative position with the base 10 in this direction, so as to facilitate the relative movement between the first locking member 21 and the base 10 through the relative movement between the first and second locking members.

[0130] Optionally, moving the first locking member 21 toward the base 10 can clamp the component to be connected between the first locking member 21 and the base 10, thereby achieving a state of being locked to the target component; moving the first locking member 21 away from the base 10 can release the lock from the target component.

[0131] Optionally, the second locking member 22 and the first locking member 21 may be connected by a threaded connection, a rack and pinion connection, or the like, so that the second locking member 22 can adjust the relative position of the first locking member 21 and the base 10 in the axial direction X by rotating itself.

[0132] Optionally, the anti-rotation assembly 30 is disposed between the second locking member 22 and the base 10, and can fix the relative position of the second locking member 22 to the base 10 in the circumferential direction, that is, lock the second locking member 22 so that it cannot rotate, thereby fixing the position of the first locking member 21 in the axial direction X, that is, the first locking member 21 can stably stay in the locked state or the unlocked state. The anti-rotation assembly 30 can be optionally disposed at least partially around the second locking member 22.

[0133] For example, when the locking mechanism 100 is used and unlocking is required, the external unlocking and locking mechanism 600 can be used to first push the anti-rotation member 31 along the axial direction X so that the anti-rotation member 31 is separated from the stop member 33, and the stop member 33 no longer restricts the rotation of the anti-rotation member 31 and the second locking member 22. Then, the unlocking and locking mechanism 600 can drive the second locking member 22 to rotate so that the first locking member 21 moves away from the second locking member 22 and disengages from the target component, thereby releasing the lock between the locking mechanism 100 and the target component. After unlocking is completed, the unlocking and locking mechanism 600 can move along the axial direction X in a direction away from the anti-rotation member 31, so that the anti-rotation member 31 resumes coupling with the stop member 33, and the unlocking and locking mechanism 600 is separated from the anti-rotation member 31 and the second locking member 22.

[0134] Correspondingly, when locking is required, the anti-rotation member 31 is also first pushed to separate the anti-rotation member 31 from the stop member 33, and then the second locking member 22 is driven to rotate in the opposite direction, so that the first locking member 21 moves in the direction close to the second locking member 22 and presses the target component between the first locking member 21 and the base 10, thereby completing the locking. Finally, the unlocking mechanism 600 is disengaged along the axial direction X, so that the anti-rotation member 31 resumes the coupling with the stop member 33, so that the stop member 33 again restricts the rotation of the anti-rotation member 31 and the second locking member 22. In some optional embodiments, the second locking member 22 is provided with a connecting hole 221 extending along the axial direction X, and a portion of the first locking member 21 extends into the connecting hole 221 and is threadedly connected to the second locking member 22.

[0135] Optionally, the second locking member 22 has a connection hole 221 that is recessed on one side away from the first locking member 21 along the axial direction X, and the connection hole 221 may be provided with an internal thread. One end of the first locking member 21 extends into the connection hole 221, and a portion of the first locking member 21 near the end is provided with an external thread, so that the first locking member 21 and the second locking member 22 are threadedly connected to each other.

[0136] In the embodiment in which the first and second locking members are threadedly connected, the first locking member 21 can be limited circumferentially. At this time, rotating the second locking member 22 can conveniently achieve relative movement between the first locking member 21 and the second locking member 22, so that the locking mechanism 100 can conveniently switch between the locked and unlocked states.

[0137] Optionally, in the radial direction of the first locking member 21, the orthographic projection of the connecting hole 221 may at least partially overlap with the orthographic projection of the elastic member 32, so as to reduce the space required for the locking mechanism 100 as a whole in this direction by sharing the space in the axial direction X, thereby improving the practicality of the locking mechanism 100.

[0138] In some optional embodiments, the first locking member 21 includes a locking rod 211 and a pressure head 212, the pressure head 212 is connected to one end of the locking rod 211 along the axial direction X and is located on the outside of the base 10, and the end of the locking rod 211 away from the pressure head 212 is accommodated in the base 10 and connected to the second locking member 22; the outer peripheral surface of the pressure head 212 includes a first surface 213 and a second surface 214, and in the radial direction of the first locking member 21, the distance between the first surface 213 and the locking rod 211 is greater than the distance between the second surface 214 and the locking rod 211.

[0139] Optionally, the first locking member 21 includes a locking rod 211 and a pressing head 212 , wherein one end of the locking rod 211 is connected to the pressing head 212 , and the two can be welded or integrally arranged, and the other end of the locking rod 211 is connected to the second locking member 22 .

[0140] Optionally, the press head 212 has a first surface 213 that protrudes radially from the second surface 214, that is, at least a portion of the press head 212 protrudes radially from an adjacent area. In a cross section perpendicular to the axial direction X, the cross-sectional shape formed by the press head 212 can be rectangular, triangular, Y-shaped, elliptical, etc., so that after the press head 212 passes through the hole on the target component, the press head 212 can be pressed against the surface of the target component by rotating it to a certain angle.

[0141] Optionally, when setting the components such as the limit groove and the limit pin for limiting the rotation angle of the first locking member 21, the design can be made according to the shape of the pressure head 212. For example, the cross section of the pressure head 212 is rectangular, so it can be rotated 90°, and the cross section of the pressure head 212 is an equilateral triangle, so it can be rotated 60°. By setting the rotation angle accordingly, the pressing area between the pressure head 212 and the external component can be increased, making the connection more stable.

[0142] Optionally, the pressing head 212 may be in the form of a cuboid to facilitate processing, and the cuboid can have a larger pressing area after being rotated 90°.

[0143] Optionally, a sealing groove and a sealing ring at least partially embedded in the sealing groove may be provided on one side surface of the base 10 facing the pressure head 212. The sealing groove may be annular and arranged around the locking rod 211. The sealing ring may be made of rubber and is used to prevent external dust and other impurities from entering the accommodating cavity formed by the base 10.

[0144] Optionally, the diameter of the sealing ring may be smaller than the maximum diameter of the pressure head 212 .

[0145] In the second aspect, according to an embodiment of the present application, a battery 200 is proposed, including a box body 40, a battery cell 50 and a locking mechanism 100 in any embodiment of the first aspect, wherein a plurality of battery cells 50 are arranged in the box body 40, and a base 10 in the locking mechanism 100 is connected to the box body 40.

[0146] In some embodiments, the battery 200 includes a plurality of battery cells 50 and a case 40 for accommodating and supporting the battery cells 50 . The case 40 is provided with a locking mechanism 100 for connecting the battery 200 to an external component.

[0147] Optionally, the base 10 in the locking mechanism 100 is connected to the box body 40 , and the target component can be clamped between the first locking member 21 and the base 10 through the first locking member 21 , thereby achieving connection with an external component.

[0148] Optionally, the locking mechanism 100 may be installed on the longitudinal beam and / or transverse beam of the box body 40 by threading, riveting, welding or other methods.

[0149] In some optional embodiments, the box body 40 is provided with a mounting hole 44 , and the base 10 is passed through the mounting hole 44 .

[0150] Optionally, the box body 40 has side beams extending along its edges, and the side beams may be provided with mounting holes 44 penetrating along the thickness direction. One or more mounting holes 44 may be provided at the same time, and these mounting holes 44 may be evenly spaced around the circumference of the box body 40 .

[0151] Optionally, the base 10 is passed through the mounting hole 44, and is detachably connected to the box body 40 through flanges or bolt holes, pin controls and other structures on the base 10, so that the locking mechanism 100 is connected and fixed to the box body 40, which facilitates the connection between the battery 200 and the external target component by clamping the external target component between the first locking member 21 and the base 10.

[0152] In the third aspect, according to an embodiment of the present application, a vehicle 1000 is provided, comprising a vehicle body and a battery 200 in any embodiment of the second aspect, the vehicle body comprising a fixing member 500, the battery 200 being located on the lower side of the vehicle body, the first locking member 21 being locked to the fixing member 500, and the battery 200 being used to provide electrical energy.

[0153] Optionally, the battery 200 may be applied to the vehicle 1000 and used to provide electrical energy for the vehicle 1000 , and the vehicle body includes a fixing member 500 , which may be a supporting beam of the vehicle body.

[0154] The battery 200 is detachably connected to the fixing member 500 via the locking mechanism 100, and at least a portion of the structure of the fixing member 500 is clamped between the first locking member 21 and the base 10. Optionally, a portion of the structure of the box body 40 may be abutted against the fixing member 500 and clamped between the first locking member 21 and the base 10 to ensure a stable connection.

[0155] The locking mechanism 100 is provided for connection, so that the space required for connection can be reduced, and the first locking member 21 can be inserted into a closed cavity having only a connection hole for connection, which has good applicability.

[0156] See also Figure 6 , Figure 6 for Figure 3 Another cross-sectional view at A-A' is shown. In some optional embodiments, the locking assembly 20 includes a first locking member 21 and a second locking member 22, the first locking member 21 is movably arranged on the base 10 along its own axial direction X, the second locking member 22 is connected to one end of the first locking member 21 along the axial direction X, the first locking member 21 includes a locking rod 211 and a pressing head 212, the pressing head 212 is connected to one end of the locking rod 211 along the axial direction X and is located on the outside of the base 10; the fixing member 500 is provided with a fixing hole 60, and the pressing head 212 is configured to be able to pass through the fixing hole 60; in the first direction Y, the size of the pressing head 212 is larger than the size of the fixing hole 60; in the second direction Z, the size of the pressing head 212 is smaller than the size of the fixing hole 60, and the first direction Y, the second direction Z and the axial direction X are perpendicular to each other; in the axial direction X, a part of the fixing member 500 is clamped between the pressing head 212 and the base 10.

[0157] As mentioned above, the first locking member 21 may include a rod-shaped locking rod 211 extending along the axial direction X and a pressing head 212 connected to the locking rod 211 and protruding from the locking rod 211 in the radial direction.

[0158] When the locking mechanism 100 is connected to the fixing member 500, the angle of the pressing head 212 is adjusted so that the pressing head 212 and part of the locking rod 211 can pass through the fixing hole 60 of the fixing member 500. When locking, the first locking member 21 is rotated by a certain angle. After the rotation, its orthographic projection on the axial direction X can overlap with part of the area around the fixing hole 60.

[0159] Specifically, in the locked state, in the first direction Y, the size of the pressing head 212 can be made larger than the size of the fixing hole 60, and in the second direction Z, the size of the pressing head 212 can be made smaller than the fixing hole 60, so that the pressing head 212 can pass through the fixing hole 60 and can be rotated to have a certain size of clamping area between the pressing head 212 and the fixing member 500.

[0160] Taking the example that the pressing head 212 is a rectangular parallelepiped and the fixing hole 60 is a rectangular hole, the length of the pressing head 212 should be smaller than the length of the fixing hole 60, and the width of the pressing head 212 should be smaller than the width of the fixing hole 60, so that the pressing head 212 can pass through the fixing hole 60. At the same time, after rotating and locking, the pressing head 212 can be rotated 90°, and the length of the pressing head 212 can be greater than the width of the fixing hole 60, so that the two ends of the pressing head 212 can be pressed tightly on the fixing member 500.

[0161] The battery 200 and the vehicle 1000 provided in the embodiment of the present application have all the beneficial effects of the locking mechanism 100 in any of the embodiments of the first aspect mentioned above. For details, please refer to the specific description of the locking mechanism 100 in the above embodiments, and this embodiment will not be repeated here.

[0162] Please also read Figures 7 and 8 , Figure 7 A partial structural diagram of a locking and unlocking mechanism provided in some embodiments of the present application, Figure 8 for Figure 7 A cross-sectional view taken along line BB' is shown.

[0163] The vehicle 1000 includes a battery 200, and is locked and connected or unlocked and disassembled by a locking mechanism 100. Specifically, during the unlocking process, the vehicle 1000 can be moved to a battery swap station, the battery swap equipment of the battery swap station rises, and the locking and unlocking mechanism 600 in the battery swap equipment lifts the anti-rotation part 31 and engages with the second locking part 22, and the anti-rotation part 31 compresses the elastic part 32 and disengages from the stopper 33 along the axial direction X.

[0164] Subsequently, the unlocking mechanism 600 rotates the second locking member 22, and the first locking member 21 is driven to move by the rotation of the second locking member 22. The first locking member 21 can be optionally raised linearly first and then spirally raised, thereby releasing the lock between the first locking member 21 and the fixing member 500.

[0165] Finally, the unlocking mechanism 600 descends and disengages from the second locking member 22 and the anti-rotation member 31, and the battery 200 is removed from the chassis of the vehicle 1000. The battery exchange equipment transfers the battery 200 to the battery compartment and receives the fully charged battery.

[0166] Correspondingly, during the locking process, the battery 200 can be lifted by the battery replacement device, and the pressure head 212 can pass through the fixing hole 60 on the fixing member 500, and the locking and unlocking mechanism 600 lifts the anti-rotation member 31 and engages with the second locking member 22, and the anti-rotation member 31 compresses the elastic member 32 and disengages from the stop member 33;

[0167] Subsequently, the locking and unlocking mechanism 600 rotates the second locking member 22 and the second locking member 22 drives the first locking member 21 to move. Optionally, the locking member 21 is first rotated and then linearly descended along the axial direction X until the pressure head 212 is tightly pressed on the fixing 500.

[0168] Then, the battery exchange equipment descends, and the unlocking mechanism 600 disengages from the second locking member 22 and the anti-rotation member 31. The anti-rotation member 31 engages with the stop member 33 under the elastic force of the elastic member 32, thereby realizing the anti-rotation locking of the locking mechanism 100.

[0169] Optionally, the locking and unlocking mechanism 600 can be applied to a battery swap station that provides services for electric devices such as the vehicle 1000. The battery swap station can be used to replace the battery 41 of the electric device, for example, the battery 41 of the vehicle 4.

[0170] Optionally, the battery swap station may include a support platform, a battery compartment and a battery swap device. The support platform is used to support the vehicle. The battery compartment is used to store and charge the battery 200. The battery swap device is configured to be able to move between the support platform and the battery compartment. The battery swap device may include the aforementioned locking and unlocking mechanism 600 and is used to replace the battery 200 of the vehicle 1000.

[0171] Exemplarily, the battery swap station may replace the battery 200 according to the following steps:

[0172] Ⅰ) After the vehicle 1000 enters the support platform, the battery exchange device can be moved to the lower side of the vehicle 1000, the unlocking mechanism 600 releases the lock between the first locking member 21 and the fixing member 500, and the battery 200 is removed from the vehicle body;

[0173] II) The battery exchange device transfers the removed battery 200 to be charged to the battery compartment for charging, and receives the fully charged battery 200 stored in the battery compartment;

[0174] III) The battery exchange device moves with the fully charged battery 200 to the lower side of the vehicle 1000, and the unlocking mechanism 600 locks the first locking member 21 in the fully charged battery 200 to the fixing member 500 of the vehicle body, so as to install the fully charged battery 200 on the vehicle 1000;

[0175] IV) The vehicle 1000 leaves the supporting platform.

[0176] Optionally, a stacker is provided in the battery compartment, and the stacker is used to transfer the batteries 200 to be charged that are removed from the battery swapping device to the charging position of the battery compartment for charging, and to place the fully charged batteries 200 stored in the battery compartment on the battery swapping device.

[0177] In some embodiments, the support platform includes a lifting mechanism, which is used to lift the vehicle 1000 to facilitate moving the battery exchange equipment to the lower side of the vehicle 1000.

[0178] In the first aspect, the present application provides a locking mechanism 100, including a base 10, a locking assembly 20 and an anti-rotation assembly 30; the locking assembly 20 is arranged on the base 10, and the locking assembly 20 is configured to lock to a target component or release the lock between the locking assembly 20 and the target component by rotation; the anti-rotation assembly 30 includes an anti-rotation part 31, an elastic part 32, a supporting part 34 and a stopper 33, the anti-rotation part 31 is movably connected to the locking assembly 20 along the axial direction X of the locking assembly 20, and the elastic part 32 is clamped between the base 10 and the supporting part in the axial direction X. The anti-rotation member 31 is located on the side of the supporting member 34 away from the elastic member 32 and is against the supporting member 34. The stop member 33 is fixed to the base 10 and is located on the side of the anti-rotation member 31 away from the supporting member 34. The stop member 33 is used to cooperate with the anti-rotation member 31 and limit the rotation of the locking assembly 20 through the anti-rotation member 31; wherein the supporting member 34 and the base 10 are relatively fixed in the circumferential direction of the locking assembly 20, and in the circumferential direction of the locking assembly 20, the anti-rotation member 31 rotates synchronously with the locking assembly 20, and the anti-rotation member 31 and the supporting member 34 are slidably matched.

[0179] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A locking mechanism, characterized in that: include: Pedestal; A locking assembly, disposed on the base, the locking assembly being configured to lock to a target component or release the locking of the locking assembly from the target component by rotation; An anti-rotation assembly, comprising an anti-rotation member, an elastic member, a supporting member and a stop member, wherein the anti-rotation member is movably connected to the locking assembly along the axial direction of the locking assembly, the elastic member is sandwiched between the base and the supporting member in the axial direction, the anti-rotation member is located on a side of the supporting member away from the elastic member and abuts against the supporting member, the stop member is fixed to the base and is located on a side of the anti-rotation member away from the supporting member, the stop member is used to cooperate with the anti-rotation member and limit the rotation of the locking assembly through the anti-rotation member; Wherein, the supporting member and the base are relatively fixed in the circumferential direction of the locking assembly.

2. The locking mechanism according to claim 1, characterized in that: In the circumferential direction of the locking assembly, the anti-rotation component rotates synchronously with the locking assembly, and the anti-rotation component is slidably matched with the supporting component.

3. The locking mechanism according to claim 2, characterized in that: The supporting member includes a first supporting surface and a second supporting surface which are arranged opposite to each other in the axial direction. The first supporting surface is arranged toward the elastic member. The surface roughness of the first supporting surface is greater than the surface roughness of the second supporting surface.

4. The locking mechanism according to claim 1, characterized in that: The supporting member is arranged around the locking assembly.

5. The locking mechanism according to claim 1, characterized in that: The base encloses a receiving cavity, one of the side wall of the receiving cavity and the outer peripheral surface of the supporting member is provided with a positioning portion, and the other is provided with a positioning groove, at least part of the positioning portion is accommodated in the positioning groove, and the positioning portion can move along the axial direction in the positioning groove.

6. The locking mechanism according to claim 5, characterized in that: There are a plurality of positioning grooves and a plurality of positioning portions. The positioning grooves extend along the axial direction and are arranged at intervals in the circumferential direction of the locking assembly. The positioning portions are arranged in a one-to-one correspondence with the positioning grooves.

7. The locking mechanism according to claim 5, characterized in that: The positioning portion is arranged on the supporting member and protrudes from the outer peripheral surface of the supporting member, and the positioning groove is arranged on the base.

8. The locking mechanism according to claim 1, characterized in that: At least one of the base and the supporting member is provided with a blocking structure, and at least a part of the blocking structure is located between the elastic member and the locking assembly.

9. The locking mechanism according to claim 8, characterized in that: The blocking structure is arranged around the locking assembly.

10. The locking mechanism according to claim 8 or 9, characterized in that: The base is provided with a blocking groove on one side facing the elastic member, and / or the supporting member is provided with a blocking groove on one side facing the elastic member, and the elastic member extends into the blocking groove; The side wall of the blocking groove close to the locking assembly is the blocking structure.

11. The locking mechanism according to claim 10, characterized in that: The base is enclosed to form a receiving cavity, and the receiving cavity includes a first cavity and a second cavity arranged along the axial direction and connected to each other, and the diameter of the first cavity is smaller than the diameter of the second cavity; the connecting surface between the first cavity and the second cavity is provided with the blocking groove; The blocking groove is arranged on a surface of one side of the supporting member close to the elastic member.

12. The locking mechanism according to claim 11, characterized in that: The plurality of blocking grooves have the same width and are correspondingly arranged in the axial direction.

13. The locking mechanism according to claim 1, characterized in that: The anti-rotation member is detachably connected to the locking assembly, and the anti-rotation member is respectively in contact with the supporting member and the stop member on two opposite sides in the axial direction; The anti-rotation member and the stop member can be switched between a disengaged state and a locked state by relative movement along the axial direction.

14. The locking mechanism according to claim 13, characterized in that: The anti-rotation member and the stop member are respectively provided with meshing teeth on one side close to each other. In the locked state, the anti-rotation member and the stop member are meshed with each other.

15. The locking mechanism according to claim 1, characterized in that: The locking assembly includes a first locking member and a second locking member, wherein the first locking member is movably arranged on the base along its own axial direction, the second locking member is connected to one end of the first locking member along the axial direction, and the second locking member is configured to lock the first locking member to a target component or release the lock of the first locking member and the target component by rotating.

16. The locking mechanism according to claim 15, characterized in that: The second locking member is provided with a connecting hole extending along the axial direction, and a portion of the first locking member extends into the connecting hole and is threadedly connected to the second locking member.

17. The locking mechanism according to claim 15, characterized in that: The first locking member includes a locking rod and a pressure head, wherein the pressure head is connected to one end of the locking rod along the axial direction and is located outside the base, and one end of the locking rod away from the pressure head is accommodated in the base and connected to the second locking member; The outer peripheral surface of the pressure head includes a first surface and a second surface. In the radial direction of the first locking member, the distance between the first surface and the locking rod is greater than the distance between the second surface and the locking rod.

18. A battery, characterized in that: include: Box; A plurality of battery cells are arranged in the box body, The locking mechanism according to any one of claims 1 to 17, wherein the base is connected to the box.

19. The battery according to claim 18, characterized in that The box body is provided with a mounting hole, and the base is passed through the mounting hole.

20. A vehicle, characterized in that: include: body, including fixings; The battery as described in any one of claims 18-19 is located on the lower side of the vehicle body, the first locking member is locked to the fixing member, and the battery is used to provide electrical energy.

21. The vehicle according to claim 20, characterized in that The locking assembly comprises a first locking member and a second locking member, wherein the first locking member is movably arranged on the base along its own axial direction, the second locking member is connected to one end of the first locking member along the axial direction, the first locking member comprises a locking rod and a pressing head, the pressing head is connected to one end of the locking rod along the axial direction and is located outside the base; The fixing member is provided with a fixing hole, and the pressing head is configured to be able to pass through the fixing hole; In the first direction, the size of the pressure head is larger than the size of the fixing hole; in the second direction, the size of the pressure head is smaller than the size of the fixing hole, and the first direction, the second direction and the axial direction are perpendicular to each other; In the axial direction, a portion of the fixing member is clamped between the pressing head and the base.

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