Locking mechanism of battery, battery and vehicle

Abstract

The utility model provides a locking mechanism of a battery, the battery and a vehicle. The locking mechanism comprises a base, a locking assembly and an anti-rotation assembly. The locking assembly is connected to the base, and the locking assembly is configured to be capable of rotating so as to be locked with the target component or unlocked from the target component. The anti-rotation assembly is arranged between the base and the locking assembly, the anti-rotation assembly comprises an anti-rotation piece and a retainer, and the anti-rotation piece is movably connected to the locking assembly in the first direction. Wherein at least one of the anti-rotation piece and the retainer comprises a magnetic adsorption material body, so that the anti-rotation piece and the retainer can be switched between a locking state and an unlocking state under the action of magnetic force. In the locking state, at least part of the anti-rotation piece and at least part of the stop piece are jointed and are fixed relative to each other. And in the unlocking state, the anti-rotation piece moves relative to the locking assembly in the first direction and is at least partially separated from the retainer, so that the locking assembly has a rotational degree of freedom relative to the retainer. The locking mechanism is beneficial for improving the reliability and prolonging the service life.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a locking mechanism, a battery, and a vehicle for a battery. Background Art

[0002] With the development of new energy technologies, batteries are increasingly widely used, such as in mobile phones, laptop computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools.

[0003] The development of battery technologies needs to consider various design factors simultaneously. For example, in the process of connecting a battery to an electrical device or removing it from an electrical device through a locking mechanism, how to improve the reliability and service life of the locking mechanism is an important research direction in the field of batteries. Summary of the Utility Model

[0004] In view of the above problems, the present application provides a locking structure, a battery, and a vehicle for a battery, which are beneficial to improving reliability and service life.

[0005] On the one hand, according to an embodiment of the present application, a locking mechanism for a battery is provided, including: a base; a locking component connected to the base, the locking component being configured to be able to rotate to lock or unlock with a target component; an anti-rotation component disposed between the base and the locking component, the anti-rotation component including an anti-rotation member and a stop member, the anti-rotation member being movably connected to the locking component along a first direction; wherein at least one of the anti-rotation member and the stop member includes a magnetically adsorbing material body, so that the anti-rotation member and the stop member can be switched between a locked state and an unlocked state under the action of magnetic force; in the locked state, at least a part of the anti-rotation member and the stop member are engaged and their relative positions are fixed; in the unlocked state, the anti-rotation member moves relative to the locking component along the first direction and is at least partially separated from the stop member, so that the locking component has a rotational degree of freedom relative to the stop member.

[0006] The locking mechanism provided by an embodiment of the present application can detachably connect a battery to a target component through the locking mechanism. By setting one of the anti-rotation member and the stop member to include a structure of a magnetically adsorbing material body, the magnetic force generated by the magnetically adsorbing material body can provide an axial force for the anti-rotation member along the first direction, so that it moves along the first direction to be at least partially engaged or separated from the stop member, so as to switch between the locked state and the unlocked state with the stop member. By adopting the magnetic force action scheme, the anti-rotation member can move under the action of magnetic force to avoid wear problems caused by mechanical contact, which is beneficial to improving the service life of the locking mechanism. Moreover, the magnetic force maintained by the magnetically adsorbing material body is more persistent, without the risk of elastic force decline and spring breakage, which is beneficial to improving the structural reliability of the locking mechanism.

[0007] According to one aspect of the embodiments of the present application, the magnetic adsorption material body includes any one of a permanent magnet and an electromagnet.

[0008] For the locking mechanism provided by an embodiment of the present application, through the above settings, it is beneficial to improve the use flexibility.

[0009] According to one aspect of the embodiments of the present application, the anti-rotation member is disposed around the locking assembly, and / or the stop member is disposed around the locking assembly.

[0010] For the locking mechanism provided by an embodiment of the present application, through the above settings, it is beneficial to improve the connection strength between the anti-rotation member and the locking assembly, so as to ensure the reliability that the anti-rotation member can limit the rotation of the locking assembly in the locked state. Moreover, it is also beneficial to improve the connection strength between the anti-rotation member and the stop member in the locked state to ensure the relative fixation of their positions, thereby ensuring the reliability that the anti-rotation member can limit the rotation of the locking assembly.

[0011] According to one aspect of the embodiments of the present application, the anti-rotation member and the locking assembly are slidably matched and arranged in a first direction.

[0012] For the locking mechanism provided by an embodiment of the present application, through the above settings, the structure is simple and convenient for assembly.

[0013] According to one aspect of the embodiments of the present application, one of the anti-rotation member and the locking assembly is provided with a sliding key extending in the first direction, and the other is provided with a sliding groove that matches the shape of the sliding key and is slidably matched therewith.

[0014] For the locking mechanism provided by an embodiment of the present application, through the above settings, it can not only ensure the movable connection between the anti-rotation member and the locking assembly in the first direction, but also ensure that the anti-rotation member can limit the rotation of the locking assembly in the locked state.

[0015] According to one aspect of the embodiments of the present application, the positive projection of a part of the locking assembly in the first direction is in a polygonal structure, and it is movably connected with the anti-rotation member in the first direction.

[0016] For the locking mechanism provided by an embodiment of the present application, through the above settings, it is beneficial to ensure that the anti-rotation member can limit the rotation of the locking assembly in the locked state, and the structure is simple and convenient for assembly.

[0017] According to one aspect of the embodiments of the present application, the anti-rotation member includes a magnetic adsorption material body, the stop member includes a first stop member, the first stop member is connected to the base and has a gap with the locking assembly in a second direction. In the locked state, at least a part of the anti-rotation member is engaged with the first stop member and their relative positions are fixed, and the second direction intersects with the first direction.

[0018] A locking mechanism provided by an embodiment of the present application, through the above-mentioned arrangement, the anti-rotation part and the first stop part can switch states under the action of magnetic force, which is beneficial to improving the reliability and service life of the locking mechanism, and there is a gap between the first stop part and the locking assembly, which is convenient for a tool to extend through the gap to push the anti-rotation part, so that the anti-rotation part and the first brake part are at least partially separated.

[0019] According to one aspect of the embodiment of the present application, in the locked state, one of the anti-rotation component and the first stopping component is at least partially inserted into the other and is engaged with each other.

[0020] A locking mechanism provided in an embodiment of the present application helps to improve the reliability of the anti-rotation member and the first stop member in a locked state by configuring the anti-rotation member and the first stop member as a snap-fit structure.

[0021] According to one aspect of the embodiment of the present application, a first meshing tooth is provided on a side of the anti-rotation member close to the first stopping member, and a second meshing tooth is provided on a side of the first stopping member close to the anti-rotation member. In a locked state, the first meshing tooth is meshed and connected with the second meshing tooth.

[0022] The locking mechanism provided in one embodiment of the present application helps to improve the reliability of the anti-rotation member and the first stop member in a locked state by arranging the anti-rotation member and the first stop member to be engaged with each other.

[0023] According to one aspect of an embodiment of the present application, the anti-rotation component has a first inclined surface, the first stopping component has a second inclined surface, the first inclined surface and the second inclined surface have the same extension direction and intersect with the first direction, the first inclined surface is provided with a first meshing tooth, and the second inclined surface is provided with a second meshing tooth.

[0024] A locking mechanism provided in an embodiment of the present application further improves the reliability of the two in a locked state by setting the extension direction of the meshing surface between the anti-rotation member and the first stop member to intersect with the first direction.

[0025] According to one aspect of an embodiment of the present application, the stop member also includes a second stop member, which is connected to the locking assembly and includes a magnetic adsorption material body. The second stop member is arranged on a side of the anti-rotation member away from the first stop member along the first direction and is spaced apart from the anti-rotation member. In the first direction, the orthographic projection of the anti-rotation member at least partially overlaps with the orthographic projection of the second stop member.

[0026] In a locking mechanism provided by an embodiment of the present application, the stopper also includes a second stop component that can be set to a magnetic adsorption material body, and there is a magnetic force between the anti-rotation component and the second stop component, which is beneficial to improving the flexibility of use of the locking mechanism.

[0027] According to one aspect of the embodiments of the present application, the locking assembly includes a locking body and a connecting flange connected to the circumferential side of the locking body. One side of the locking body along the first direction is configured to lock with or unlock from a target component, and the other side is movably connected to an anti-rotation member. The base, the connecting flange, and the second stop member are stacked in sequence along the first direction, or the base, the second stop member, and the connecting flange are stacked in sequence along the first direction.

[0028] For the locking mechanism provided by an embodiment of the present application, through the above settings, it is beneficial to improve the connection reliability between the locking assembly and the base, thereby facilitating the improvement of the reliability of the locking mechanism.

[0029] On the other hand, according to an embodiment of the present application, a battery is provided, including: a box body; a plurality of battery cells disposed in the box body; the locking mechanism in any one of the embodiments of the first aspect, and the base is connected to the box body.

[0030] The battery provided by an embodiment of the present application includes a box body, a plurality of battery cells, and a locking mechanism. The locking mechanism is connected to the box body through the base to lock or unlock the battery from a target component.

[0031] On yet another aspect, according to an embodiment of the present application, a vehicle is provided, including: a vehicle body including a fixing member; the battery in any one of the embodiments of the second aspect, and the locking assembly is connected to the fixing member, and the battery is used to provide electrical energy.

[0032] For the vehicle provided by an embodiment of the present application, the locking assembly of the locking mechanism is connected to the fixing member, and the base of the locking mechanism is connected to the battery. The vehicle can lock or unlock from the battery through the locking mechanism, which is beneficial to improving the reliability of the vehicle.

[0033] According to one aspect of the embodiments of the present application, the vehicle further includes a support sleeve, and the support sleeve is sleeved on the outer periphery of the locking assembly and abuts between the fixing member and the base.

[0034] For the vehicle provided by an embodiment of the present application, by providing the support sleeve, it is beneficial to increase the connection strength between the fixing member and the base.

[0035] According to one aspect of the embodiments of the present application, the vehicle further includes a fastener, and the locking assembly is connected to the fixing member through the fastener.

[0036] For the vehicle provided by an embodiment of the present application, the locking assembly and the fastener can be rotatably connected to lock or unlock the locking assembly from the fixing member, which is convenient for processing and manufacturing.

[0037] The above description is only an overview of the technical solution of the present application. In order to better understand the technical means of the present application, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specific embodiments of the present application are given. Brief Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 is a schematic diagram of a vehicle according to an embodiment of the present application;

[0040] Figure 2 is a schematic structural diagram of a battery module according to an embodiment of the present application;

[0041] Figure 3 is an exploded structural diagram of a battery cell according to an embodiment of the present application;

[0042] Figure 4 is a partial cross-sectional view of a locking mechanism according to an embodiment of the present application;

[0043] Figure 5 is a partial cross-sectional view of a locking mechanism according to another embodiment of the present application;

[0044] Figure 6 is a schematic structural diagram of an anti-rotation member in a locking mechanism according to an embodiment of the present application;

[0045] Figure 7 is a schematic structural diagram of a locking component in a locking mechanism according to an embodiment of the present application;

[0046] Figure 8 is Figure 4 an enlarged schematic diagram of P out in

[0047] Figure 9 is a schematic structural diagram of a first stop member in a locking mechanism according to an embodiment of the present application;

[0048] Figure 10 is a schematic structural diagram of a second stop member in a locking mechanism according to an embodiment of the present application;

[0049] Figure 11 is a partial cross-sectional view of a locking mechanism according to yet another embodiment of the present application;

[0050] Figure 12Explosion structure schematic diagram of the battery according to an embodiment of the present application.

[0051] Wherein:

[0052] 1 - Vehicle; 1000 - Battery; 2000 - Controller; 3000 - Motor; 4000 - Fixing member; 5000 - Support sleeve; 6000 - Fastening member; 300 - Box body; 310 - First box body part; 320 - Second box body part; 330 - Accommodating part;

[0053] 200 - Battery cell; 300a - Battery module; 210 - Electrode terminal; 220 - Electrode assembly; 230 - Housing; 240 - End cover;

[0054] 100 - Locking mechanism; 10 - Base;

[0055] 20 - Locking component; 21 - Locking body; 22 - Connecting flange;

[0056] 30 - Anti - rotation component; 31 - Anti - rotation part; 311 - First inclined surface; 312 - First engaging tooth; 32 - Stopping part; 321 - First stopping member; 3211 - Second inclined surface; 3212 - Second engaging tooth; 322 - Second stopping member; aa - Gap;

[0057] X - First direction; Y - Second direction.

[0058] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale. Detailed implementation manners

[0059] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled 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" and any variations thereof in the specification and claims of this application and the above - mentioned drawings are intended to cover non - exclusive inclusion.

[0061] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary - secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two unless otherwise specifically defined.

[0062] Reference to "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment 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.

[0063] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. 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 document generally represents an "or" relationship between the associated objects before and after.

[0064] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0065] In the description of the embodiments of the present application, the orientation or positional relationships indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application.

[0066] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0067] The term "parallel" in the present application includes not only the case of absolute parallelism but also the case of approximately parallelism conventionally recognized in engineering; at the same time, "perpendicular" also includes not only the case of absolute perpendicularity but also the case of approximately perpendicularity conventionally recognized in engineering.

[0068] With the further development and popularization of battery technology, the battery swapping solution has gradually been recognized by the market and consumers. In power-consuming devices such as vehicles, the battery is usually provided with a locking mechanism, which can be used to lock the battery at a preset position on the vehicle body. By controlling the locking or unlocking of the locking mechanism with the vehicle body, the locking or separation of the battery from the vehicle body can be achieved.

[0069] Currently, the locking mechanism of the battery often has mechanical components such as springs. When the vehicle is running, that is, when the battery is connected to the vehicle body, the spring is compressed to limit the relative position of the locking mechanism to be fixed, so as to ensure its locking with the vehicle body, thereby ensuring that the battery can be fixed on the vehicle body and preventing the battery from loosening and causing safety problems. When the vehicle has a battery swapping requirement, by using a tool to further compress the spring, the locking mechanism has a rotational degree of freedom, so that it can release the locking with the vehicle body, and the battery is separated from the vehicle through the locking mechanism for battery maintenance or replacement. When assembling the maintained or new battery together with the locking mechanism on the vehicle, the spring automatically rebounds under its elastic force to continue to limit the relative position of the locking mechanism to be fixed. Under long-term use, the spring will often stretch and contract, resulting in easy wear and corrosion problems of the spring and the components in contact with it. Moreover, the spring may also fail due to a decrease in fatigue elastic force, thus unable to ensure the locking of the battery with the vehicle body and affecting driving safety.

[0070] In view of this, the embodiment of the present application provides a locking mechanism for a battery, including a base, a locking component, and an anti-rotation component. The locking component is connected to the base and is configured to be able to rotate to lock or unlock with a target component. The anti-rotation component is arranged between the base and the locking component, and the anti-rotation component includes an anti-rotation member and a stop member. The anti-rotation member is movably connected to the locking component along a first direction. Among them, at least one of the anti-rotation member and the stop member includes a magnetically adsorbing material body, so that the anti-rotation member and the stop member can be switched between a locked state and an unlocked state under the action of magnetic force. In the locked state, at least a part of the anti-rotation member and the stop member are engaged and their relative positions are fixed. In the unlocked state, the anti-rotation member moves relative to the locking component along the first direction and is at least partially separated from the stop member, so that the locking component has a rotational degree of freedom relative to the stop member. The locking mechanism provided by the embodiment of the present application can be switched between a locked state and an unlocked state under the action of magnetic force, avoiding wear caused by mechanical contact, and being beneficial to improving the structural reliability and service life.

[0071] The technical solutions described in the embodiments of the present application are applicable to various devices using batteries, such as mobile phones, portable devices, laptop computers, battery cars, electric toys, electric tools, electric vehicles, ships, and spacecrafts, etc. For example, spacecrafts include airplanes, rockets, space shuttles, and spaceships, etc.

[0072] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the above-described devices, but can also be applied to all devices using batteries. However, for the sake of brevity in description, the following embodiments will be described by taking a vehicle as an example.

[0073] For example, as Figure 1 shown, Figure 1 FIG. 1 is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application. The vehicle 1 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A motor 3000, a controller 2000, and a battery 10000 can be arranged inside the vehicle 1. The controller 2000 is used to control the power supply of the battery 1000 to the motor 3000. For example, the battery 1000 can be arranged at the bottom, the front end, or the rear end of the vehicle 1. The battery 1000 can be used for power supply of the vehicle 1. For example, the battery 1000 can be used as an operating power source of the vehicle 1 for the circuit system of the vehicle 1, such as for the working power requirements during starting, navigation, and operation of the vehicle 1. In another embodiment of the present application, the battery 1000 can not only be used as an operating power source of the vehicle 1, but also be used as a driving power source of the vehicle 1 to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1.

[0074] As Figure 2 shown, in order to meet different power usage requirements, the battery 10000 can include a plurality of battery cells 200. Among them, the plurality of battery cells 200 can be connected in series, in parallel, or in a series-parallel combination. The series-parallel combination means a combination of series and parallel connections. The battery 1000 can also be referred to as a battery pack. Optionally, the plurality of battery cells 200 can first be connected in series, in parallel, or in a series-parallel combination to form a battery module 300a, and then the plurality of battery modules 300a are connected in series, in parallel, or in a series-parallel combination to form the battery 1000. That is to say, the plurality of battery cells 200 can directly form the battery 1000, or can first form the battery module 300a, and then the battery modules form the battery 1000.

[0075] In the present application, the battery cell 200 can include a lithium-ion battery cell, a sodium-ion battery cell, a magnesium-ion battery cell, etc., and the embodiments of the present application do not limit this. The battery cell 200 can be in a cylindrical shape, a flat shape, a cuboid shape, or other shapes, and the embodiments of the present application also do not limit this. Generally, the battery cell 200 is divided into three types according to the encapsulation method: a cylindrical battery cell, a square battery cell, and a soft-pack battery cell, and the embodiments of the present application also do not limit this.

[0076] As Figure 3As shown in the figure, the battery cell 200 includes a housing 230, an electrode assembly 220, and an end cap 240. The housing 230 is a component for cooperating with the end cap 240 to form the internal environment of the battery cell 200. Among them, the formed internal environment can be used to accommodate the electrode assembly 220, the electrolyte (not shown in the figure), and other components. The housing 230 and the end cap 240 can be independent components. An opening can be provided on the housing 230, and the end cap 240 is covered at the opening to form the internal environment of the battery cell 200. Without limitation, the end cap 240 and the housing 230 can also be integrated. Specifically, the end cap 240 and the housing 230 can form a common connection surface before other components are put into the housing. When it is necessary to encapsulate the inside of the housing 230, the end cap 240 is then covered on the housing 230. The housing 230 can be of various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 230 can be determined according to the specific shape and size of the electrode assembly 220. The material of the housing 230 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. The embodiments of the present application do not make special restrictions on this.

[0077] The electrode assembly 220 is a component in the battery cell 200 where an electrochemical reaction occurs. One or more electrode assemblies 220 can be included in the housing 230. The electrode assembly 220 is mainly formed by winding or laminating a positive electrode sheet and a negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet. The parts of the positive electrode sheet and the negative electrode sheet with active substances constitute the main body of the electrode assembly, and the parts of the positive electrode sheet and the negative electrode sheet without active substances respectively constitute the electrode tabs (not shown in the figure). The positive electrode tab and the negative electrode tab can be located at one end of the main body together or at both ends of the main body respectively. During the charge and discharge process of the battery, the positive electrode active substance and the negative electrode active substance react with the electrolyte, and the electrode tabs are connected to the electrode terminals to form a current loop.

[0078] The end cap 240 refers to a component that covers the opening of the housing 230 to isolate the internal environment of the battery cell 200 from the external environment. Without limitation, the shape of the end cap 240 can be adapted to the shape of the housing 230 to cooperate with the housing 230.

[0079] In some embodiments, a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 200 reaches a threshold value can also be provided on the end cap 240. The material of the end cap 240 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. The embodiments of the present application do not make special restrictions on this.

[0080] In some embodiments, an insulating member can also be provided on the inner side of the end cap 240. The insulating member can be used to isolate the electrical connection components in the housing 230 from the end cap 240 to reduce the risk of short circuit. Exemplarily, the insulating member can be plastic, rubber, etc.

[0081] The housing 230 is a component for cooperating with the end cap 240 to form the internal environment of the battery cell 200, and the formed internal environment can be used to accommodate the electrode assembly 220, the electrolyte, and other components. The housing 230 and the end cap 240 can be independent components. An opening can be provided on the housing 230, and the end cap 240 is covered at the opening to form the internal environment of the battery cell 200.

[0082] In some examples, the housing 230 is a hollow structure with an opening on one side, and the end cap 240 is one and covers the opening of the housing 230. In other examples, the housing 230 is a hollow structure with openings on both sides, and the end cap 240 is two, and the two end caps 240 respectively cover the two openings of the housing 230.

[0083] The electrode assembly 220 is a component in the battery cell 200 where an electrochemical reaction occurs. The housing 230 can contain one or more electrode assemblies 220. The electrode assembly 220 is mainly formed by winding or laminating a positive electrode sheet and a negative electrode sheet, and a separator is usually provided between the positive electrode sheet and the negative electrode sheet. The portions of the positive electrode sheet and the negative electrode sheet having the active material constitute the main body of the electrode assembly 220, and the portions of the positive electrode sheet and the negative electrode sheet without the active material respectively constitute the electrode tabs. The positive electrode tab and the negative electrode tab can be located at one end of the main body together or at both ends of the main body respectively. During the charging and discharging process of the battery 1000, the positive electrode active material and the negative electrode active material react with the electrolyte, and the electrode tabs are connected to the electrode terminals 210 to form a current loop.

[0084] Please refer to Figure 4 and Figure 5 , an embodiment of the present application provides a locking mechanism 100 for a battery 1000, including a base 10, a locking component 20, and an anti-rotation component 30. The locking component 20 is connected to the base 10, and the locking component 20 is configured to be able to rotate to lock or unlock with a target component. The anti-rotation component 30 is disposed between the base 10 and the locking component 20. The anti-rotation component 30 includes an anti-rotation member 31 and a stop member 32. The anti-rotation member 31 is movably connected to the locking component 20 along the first direction X. Wherein, at least one of the anti-rotation member 31 and the stop member 32 includes a magnetically adsorbing material body, so that the anti-rotation member 31 and the stop member 32 can be switched between a locked state and an unlocked state under the action of magnetic force. In the locked state, at least a part of the anti-rotation member 31 and the stop member 32 are engaged and their relative positions are fixed. In the unlocked state, the anti-rotation member 31 moves relative to the locking component 20 along the first direction X and is at least partially separated from the stop member 32, so that the locking component 20 has a rotational freedom relative to the stop member 32.

[0085] The locking mechanism 100 provided by the embodiment of the present application can be applied to the battery 1000. Specifically, the locking mechanism 100 can be connected to the battery 1000 through the base 10 and connected to the target component through the locking component 20 to achieve a detachable connection between the battery 1000 and the target component. The target component can specifically be the body of the vehicle 1.

[0086] The base 10 can be used to provide support or bearing for the locking component 20 and the anti-rotation component 30. The locking component 20 is used for detachable connection with the target component to meet the requirement that it can be locked to the target component or unlocked from the target component. The anti-rotation component 30 is used to maintain the locking state between the locking component 20 and the target component and play a role in preventing reverse rotation and loosening.

[0087] Rotating the locking component 20 and moving it away from the side where the base 10 is located in the first direction X can lock the locking component 20 with the target component; rotating the locking component 20 and moving it closer to the side where the base 10 is located in the first direction X can unlock the locking component 20 from the target component. Optionally, the locking component 20 can include connection structures such as bolts, studs, and screws, and the locking component 20 can also include a combination formed by combining at least two connection structures such as bolts, studs, and screws.

[0088] The first direction X can be understood as the axial direction of the locking component 20, and the second direction Y can be understood as the radial direction of the locking mechanism 100.

[0089] The anti-rotation component 30 is arranged between the base 10 and the locking component 20, and can fix the relative position of the locking component 20 with respect to the base 10 in the circumferential direction. That is to say, the anti-rotation component 30 can lock the locking component 20 so that it cannot rotate, so that the position of the locking component 20 in the first direction X is fixed, thereby ensuring that the locking component 20 can stably maintain the locking state with the target component.

[0090] The anti-rotation component 30 can include an anti-rotation member 31 that is movably connected to the locking component 20 along the first direction X and can rotate synchronously with it along the first direction X, and a stop member 32 that is at least partially connected to the base 10 and is stationary synchronously with the base 10.

[0091] The anti-rotation member 31 and the stop member 32 are distributed along the first direction X, and the two can be switched between the locking state and the unlocking state under the action of magnetic force. The magnetic force action means that there can be a magnetic attraction force that attracts each other between the anti-rotation member 31 and the stop member 32. Of course, there can also be a magnetic repulsion force that repels each other between the anti-rotation member 31 and the stop member 32. It is not necessary for the anti-rotation member 31 and the stop member 32 to undergo elastic deformation, and only rely on the magnetic force action to switch states.

[0092] In the locked state, at least a part of the anti-rotation member 31 is engaged with the stop member 32 and the relative positions are fixed, so that the locking assembly 20 connected to the anti-rotation member 31 is also fixed in relative position with respect to the stop member 32. At this time, the locking assembly 20 does not have rotational freedom, so that it can maintain the locking relationship with the target component.

[0093] In the unlocked state, the anti-rotation member 31 can move relative to the stop member 32 in the first direction X, so that at least a part of it is separated from the stop member 32, and the locking assembly 20 connected to the anti-rotation member 31 has rotational freedom relative to the stop member 32. At this time, rotate the locking assembly 20 to release its locking relationship with the target component.

[0094] During the process of switching from the unlocked state to the locked state, the magnetic force between the anti-rotation member 31 and the stop member 32 can provide an axial force in the first direction X to the anti-rotation member 31, so that the anti-rotation member 31 moves in the first direction X and engages with at least a part of the stop member 32 to keep their relative positions fixed.

[0095] The at least partial engagement of the anti-rotation member 31 with the stop member 32 can be understood as that at least a part of the anti-rotation member 31 can contact and be connected as a whole with the stop member 32, so that the stop member 32 can limit the rotation of the anti-rotation member 31, thereby limiting the rotation of the locking assembly 20 to maintain the locking state between the locking assembly 20 and the target component.

[0096] The locking mechanism 100 provided by an embodiment of the present application can detachably connect the battery 1000 to the target component through the locking mechanism 100. By setting one of the anti-rotation member 31 and the stop member 32 to have a structure including a magnetic adsorption material body, the magnetic force generated by the magnetic adsorption material body can provide an axial force in the first direction X to the anti-rotation member 31, so that it moves in the first direction X to engage with or separate from at least a part of the stop member 32, so that it can be switched between the locked state and the unlocked state with the stop member 32. By adopting the magnetic force action scheme, the anti-rotation member 31 can move in the first direction X under the magnetic force to avoid wear problems caused by mechanical contact, which is beneficial to improving the service life of the locking mechanism 100. Moreover, there is no need to set mechanical elements such as springs, which is beneficial to reducing costs, simplifying the installation process, and also beneficial to improving space utilization. In addition, the magnetic force maintained by the magnetic adsorption material body is more persistent, without the risk of elastic decay and spring breakage, which is beneficial to improving the structural reliability of the locking mechanism 100.

[0097] Optionally, the base 10 may include any one of a beam structure, a plate-like structure, and a cylindrical structure. Of course, the base 10 may also include a combination formed by combining a beam structure, a plate-like structure, a cylindrical structure, etc.

[0098] Optionally, the base 10 can be an integrally formed structure, or can be assembled from two or more independently formed structures. 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.

[0099] Optionally, the base 10 can have a receiving cavity, and have a first through hole and a second through hole that communicate with the receiving cavity along the first direction X and are opposite to each other along the first direction X. A part of the locking component 20 is disposed in the receiving cavity and can extend out through the first through hole, and the anti-rotation component 30 is disposed in the receiving cavity and is located between the locking component 20 and the base 10.

[0100] Optionally, one of the anti-rotation member 31 and the stop member 32 can include a magnetic adsorption material body. Specifically, one of them can be entirely made of a magnetic adsorption material body. Of course, it can also be partially made of a magnetic adsorption material body; the anti-rotation member 31 and the stop member 32 can also both include a magnetic adsorption material body.

[0101] Optionally, as Figure 5 shown, the stop member 32 can only include the first stop part 321. In the locked state, the anti-rotation member 31 and the first stop part 321 are engaged under the action of magnetic force. One of the anti-rotation member 31 and the first stop part 321 can include a magnetic adsorption material body, and the other can include a material that can have a magnetic force action with the magnetic adsorption material body. Of course, both of them can also include a magnetic adsorption material body; as Figure 4 shown, the stop member 32 can include the first stop part 321 and the second stop part 322. In the locked state, the anti-rotation member 31 is engaged with the first stop part 321, and both the anti-rotation member 31 and the second stop part 322 can include a magnetic adsorption material body. Of course, the first stop part 321 can also include a magnetic adsorption material body. Of course, it can also be other structures.

[0102] The whole of the anti-rotation member 31 can be engaged with a part of the stop member 32, and a part of the anti-rotation member 31 can also be engaged with a part of the stop member 32. Of course, the whole of the anti-rotation member 31 can also be engaged with the whole of the stop member 32.

[0103] The anti-rotation member 31 is movably connected to the locking component 20 along the first direction X. Optionally, the anti-rotation member 31 and the locking component 20 can be movably connected along the first direction X through a gear rack, and the anti-rotation member 31 and the locking component 20 can also be arranged as a rolling connection or a sliding connection structure.

[0104] In some alternative embodiments, the magnetic adsorption material body includes any one of a permanent magnet and an electromagnet.

[0105] A permanent magnet can be understood as a magnet that can generate a stable magnetic field and can attract components made of metal materials such as iron, cobalt, nickel, etc. Optionally, the permanent magnet can include any one of neodymium magnets, samarium cobalt magnets, alnico magnets, and ferrite magnets.

[0106] Optionally, as Figure 5 shown, the stopper 32 only includes the first stopper member 321. In some embodiments, the anti-rotation member 31 includes a permanent magnet, and the first stopper member 321 can include a material that can have a magnetic force interaction with the permanent magnet. In other embodiments, the first stopper member 321 includes a permanent magnet, and the anti-rotation member 31 includes a material that can have a magnetic force interaction with the permanent magnet. The magnetic attraction force between the anti-rotation member 31 and the first stopper member 321 will cause the anti-rotation member 31 to move along the first direction X so that it is joined with the first stopper member 321 as a whole, to limit the rotation of the anti-rotation member 31 and the locking assembly 20. Under the action of the magnetic attraction force, the anti-rotation member 31 will always have a tendency to move along the first direction X towards the first stopper member 321, ensuring the effectiveness of their joining and maintaining a fixed relative position, which is beneficial to ensuring the reliability of the locking of the locking assembly 20 with the target component, and thus beneficial to improving the reliability of the locking mechanism 100; when there is a need for battery swapping, an external tool can be used to push against the anti-rotation member 31 to overcome the magnetic attraction force between the anti-rotation member 31 and the first stopper member 321, so that the anti-rotation member 31 moves relative to the locking assembly 20 along the first direction X and is at least partially separated from the first stopper member 321, so that the locking assembly 20 has a rotational freedom relative to the stopper 32; when the locking mechanism 100 is assembled to the target component, the anti-rotation member 31 will automatically move along the first direction X towards the first stopper member 321 under the action of the magnetic attraction force to be joined with the first stopper member 321.

[0107] Of course, both the anti-rotation member 31 and the first stopper member 321 can also include permanent magnets, and the magnetic poles on the sides of the anti-rotation member 31 and the first stopper member 321 facing each other are opposite, that is, one side of one of the anti-rotation member 31 and the first stopper member 321 facing the other is the south pole, and the side of the other of the anti-rotation member 31 and the first stopper member 321 facing the one is the north pole. The magnetic attraction force between the anti-rotation member 31 and the first stopper member 321 will cause the anti-rotation member 31 to move along the first direction X so that it is joined with the first stopper member 321 as a whole; when there is a need for battery swapping, an external tool can be used to push against the anti-rotation member 31 to overcome the magnetic attraction force between the anti-rotation member 31 and the first stopper member 321.

[0108] Optionally, as Figure 4As shown, the stopper 32 includes a first stopper member 321 and a second stopper member 322. In some embodiments, the anti-rotation member 31 and the second stopper member 322 include permanent magnets. The magnetic poles on the sides of the anti-rotation member 31 and the second stopper member 322 facing each other are the same, that is, both the side of the anti-rotation member 31 and the side of the second stopper member 322 facing each other are south poles or both are north poles. The magnetic repulsive force between the anti-rotation member 31 and the second stopper member 322 can make it always tend to move away from the side where the second stopper member 322 is located along the first direction X, ensuring the reliability of the engagement between the anti-rotation member 31 and the first stopper member 321. When there is a need for battery swapping, an external tool can be used to push against the anti-rotation member 31 to overcome the magnetic repulsive force between the anti-rotation member 31 and the second stopper member 322. When the locking mechanism 100 is assembled to the target component, the anti-rotation member 31 will automatically move away from the side where the second stopper member 322 is located along the first direction X under the action of the magnetic repulsive force to engage with the first stopper member 321.

[0109] Of course, the anti-rotation member 31, the first stopper member 321, and the second stopper member 322 may also all include permanent magnets. The magnetic poles on the sides of the anti-rotation member 31 and the first stopper member 321 facing each other are opposite, and the magnetic poles on the sides of the anti-rotation member 31 and the first stopper member 321 facing each other are the same. In the locked state, the attractive force between the anti-rotation member 31 and the first stopper member 321 can promote the anti-rotation member 31 to move closer to the first stopper 32 to prevent them from separating. Moreover, the repulsive force between the anti-rotation member 31 and the second stopper member 322 can also promote the anti-rotation member 31 to move closer to the first stopper 32, further improving the reliability of the locking mechanism 100.

[0110] Optionally, the shape of the permanent magnet can be any one of a square magnet, a tile magnet, a ring magnet, a disc magnet, and a special-shaped magnet.

[0111] An electromagnet is a device that generates an electromagnetic field when an electric current is applied. The electromagnet may include an iron core and a conductive coil wound around the outside of the iron core. An electric current is passed through the wire coil to magnetize the iron core to have magnetism, and moreover, the magnetic force it has can be adjusted by adjusting the current. In addition, different directions of the applied current can also change the magnetic pole direction of the electromagnet.

[0112] Optionally, as Figure 5As shown, the stopper 32 only includes the first stopper member 321. In some embodiments, the anti-rotation member 31 includes an electromagnet, and the first stopper member 321 may include a material that can have a magnetic force interaction with the electromagnet. By supplying a first current to the anti-rotation member 31 to make it magnetic, the magnetic attraction force between the anti-rotation member 31 and the first stopper member 321 will cause it to move along the first direction X to engage with the first stopper member 321 as a whole. In the locked state, the magnetic attraction force between the two will cause the anti-rotation member 31 to always have a tendency to move along the first direction X towards the first stopper member 321 to ensure the reliability of their engagement, thereby facilitating the guarantee of the reliability of the locking mechanism 100; when there is a need for battery swapping, the first current is turned off or reduced to make the anti-rotation member 31 lose its magnetism or reduce it, and by using an external tool to push against the anti-rotation member 31, it can be separated from the first stopper member 321. It is not necessary to apply a large force to push the anti-rotation member 31 to move along the first direction X, which is convenient for operation and helps to reduce the operation difficulty; when the locking mechanism 100 is assembled to the target component, the first current is supplied to the anti-rotation member 31 again to make it magnetic.

[0113] Optionally, the first stopper member 321 may also include an electromagnet, and the anti-rotation member 31 includes a material that can have a magnetic force interaction with the electromagnet. The specific operation process is as described above and will not be elaborated here.

[0114] In some embodiments, the anti-rotation member 31 includes an electromagnet, and the first stopper member 321 may also include a permanent magnet. The magnetic attraction force between the anti-rotation member 31 and the first stopper member 321 will cause it to move along the first direction X to engage with the first stopper member 321 as a whole. In the locked state, the magnetic attraction force between the two will cause the anti-rotation member 31 to always have a tendency to move along the first direction X towards the first stopper member 321; when there is a need for battery swapping, the first current can be turned off or reduced to make the anti-rotation member 31 lose its magnetism or reduce it, and a second current with a direction opposite to the first current can also be supplied to the anti-rotation member 31 to make it have a magnetic repulsive force with the side of the first stopper member 321 facing each other. The anti-rotation member 31 will automatically move along the first direction X towards the side away from the first stopper member 321 under the action of the repulsive force, without using tools, which helps to improve the operation efficiency and reduce the operation difficulty. Of course, the first stopper member 321 may also include an electromagnet, and the anti-rotation member 31 includes a permanent magnet. The specific operation process is as described above and will not be elaborated here.

[0115] Optionally, as Figure 4As shown, the stopper 32 includes a first stopper member 321 and a second stopper member 322. In some embodiments, the anti-rotation member 31 and the second stopper member 322 include electromagnets, and a first current is respectively supplied to the anti-rotation member 31 and the second stopper member 322 to make the magnetic poles on the sides facing each other of the two the same; when there is a need for battery swapping, a second current with a direction opposite to that of the first current can be supplied to either the anti-rotation member 31 or the second stopper member 322, so that there is a magnetic attraction force on the sides of the anti-rotation member 31 and the second stopper member 322 facing each other, causing the anti-rotation member 31 to automatically move along the first direction X to the side away from the first stopper member 321 under the action of the attraction force, without the need for tools, which is beneficial to improving the operation efficiency and reducing the operation difficulty. Of course, one of the anti-rotation member 31 and the second stopper member 322 may also include a permanent magnet, and the other includes an electromagnet. For the specific operation process, please refer to the above description and will not be elaborated here.

[0116] In some embodiments, the anti-rotation member 31, the first stopper member 321, and the second stopper member 322 may all include electromagnets, and a first current is respectively supplied to the anti-rotation member 31, the first stopper member 321, and the second stopper member 322 to make the magnetic poles on the sides of the anti-rotation member 31 and the first stopper member 321 facing each other opposite, the magnetic poles on the sides of the anti-rotation member 31 and the first stopper member 321 facing each other the same, or at least one of the anti-rotation member 31, the first stopper member 321, and the second stopper member 322 may include an electromagnet.

[0117] With the above settings, the locking mechanism 100 provided by an embodiment of the present application is beneficial to improving the use flexibility.

[0118] Please refer to Figure 4 and Figure 6 , in some optional embodiments, the anti-rotation member 31 surrounds the locking assembly 20.

[0119] Optionally, the anti-rotation member 31 can be set as an integral ring structure, and the anti-rotation member 31 is sleeved on the outer periphery of the locking assembly 20 and is movably connected to the locking assembly 20 along the first direction X. Of course, the anti-rotation member 31 may also include two or more sub anti-rotation members distributed at intervals along the circumferential direction of the locking assembly 20.

[0120] Optionally, the anti-rotation member 31 can be set as an annular washer and surrounds the locking assembly 20, so that each part of the anti-rotation member 31 can be subjected to the magnetic force and move along the first direction X simultaneously, to ensure the reliability of the engagement or separation between the anti-rotation member 31 and the stopper 32.

[0121] In some optional embodiments, the stopper 32 surrounds the locking assembly 20.

[0122] Optionally, the stopper 32 can be set as an integral ring structure, and the stopper 32 is sleeved on the outer periphery of the locking assembly 20. Of course, the stopper 32 can also include two or more sub-stoppers that are circumferentially spaced apart along the locking assembly 20.

[0123] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, it is beneficial to improve the connection strength between the anti-rotation member 31 and the locking assembly 20, thereby facilitating to ensure the reliability that the anti-rotation member 31 can restrict the rotation of the locking assembly 20 in the locked state. Moreover, it is also beneficial to improve the connection strength between the anti-rotation member 31 and the stopper 32 in the locked state to ensure the relative fixation of their positions, thereby facilitating to ensure the reliability that the anti-rotation member 31 can restrict the rotation of the locking assembly 20.

[0124] In some optional embodiments, the anti-rotation member 31 and the locking assembly 20 are slidably engaged along the first direction X.

[0125] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, the structure is simple and convenient for assembly.

[0126] Optionally, a sliding rail extending along the first direction X can be provided on the outer peripheral surface of the locking assembly 20, and a sliding block slidably engaged with the sliding rail can be provided on the inner ring surface of the anti-rotation member 31. Of course, the sliding rail can also be provided on the inner ring surface of the anti-rotation member 31, and the sliding block is provided on the outer peripheral surface of the locking assembly 20.

[0127] In some optional embodiments, one of the anti-rotation member 31 and the locking assembly 20 is provided with a sliding key extending along the first direction X, and the other is provided with a sliding groove that is matched in shape and slidably engaged with the sliding key.

[0128] Optionally, a sliding key extending along the first direction X is provided on the outer peripheral surface of the anti-rotation member 31, and a sliding groove that is matched in shape and slidably engaged with the sliding key is provided on the inner ring surface of the locking assembly 20. Of course, a sliding key extending along the first direction X is provided on the outer peripheral surface of the locking assembly 20, and a sliding groove that is matched in shape and slidably engaged with the sliding key is provided on the inner ring surface of the anti-rotation member 31.

[0129] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, it can not only ensure the movable connection between the anti-rotation member 31 and the locking assembly 20 along the first direction X, but also ensure that the anti-rotation member 31 can restrict the rotation of the locking assembly 20 in the locked state.

[0130] Please refer to Figures 4 to 7 , in some optional embodiments, a partial orthographic projection of the locking assembly 20 along the first direction X is in a polygonal structure and is movably connected to the anti-rotation member 31 along the first direction X.

[0131] The locking assembly 20 itself can be divided into two parts along the first direction X. One part can be detachably connected to the target component, so that the locking assembly 20 can be locked with the target component or unlocked from the target component; the other part can be movably connected to the anti-rotation member 31 along the first direction X. The positive projection of this part of the locking member that is movably connected to the anti-rotation member 31 along the first direction X has a polygonal structure, and the anti-rotation member 31 is provided with a through hole of a corresponding shape, so that the anti-rotation member 31 can be sleeved on the outer periphery of this part of the locking member and can rotate synchronously.

[0132] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, it is beneficial to ensure that the anti-rotation member 31 can restrict the rotation of the locking assembly 20 in the locked state, and the structure is simple and convenient for assembly.

[0133] Exemplarily, the positive projection of a part of the locking member along the first direction X has a hexagonal structure, and the anti-rotation member 31 is provided with a hexagonal through hole, which is easy to obtain.

[0134] Please continue to refer to Figure 4 and Figure 8 , in some optional embodiments, the anti-rotation member 31 includes a magnetically adsorbing material body, the stop member 32 includes a first stop member 321, the first stop member 321 is connected to the base 10 and has a gap aa with the locking assembly 20 along the second direction Y. In the locked state, the anti-rotation member 31 is at least partially engaged with the first stop member 321 and is fixed in relative position. The second direction Y intersects with the first direction X.

[0135] The anti-rotation member 31 is movably connected to the locking assembly 20. The first stop member 321 is connected to the base 10 and has a gap aa with the locking assembly 20 along the second direction Y. The anti-rotation member 31 can be at least partially engaged with the first stop member 32. That is to say, in the first direction X, the positive projection of the anti-rotation member 31 can cover this gap aa. When there is a need for battery swapping, it is convenient for a tool to push down the anti-rotation member 31 along the first direction X through this gap aa to at least partially separate it from the first stop member 321, so that the locking assembly 20 has a rotational degree of freedom relative to the stop member 32, and then the tool is used to rotate the locking assembly 20 to release its locking with the target component.

[0136] Optionally, the anti-rotation member 31 can include any one of a permanent magnet and an electromagnet. Optionally, the anti-rotation member 31 can be entirely made of a magnetically adsorbing material body, or can be partially provided with a magnetically adsorbing material body.

[0137] Optionally, the first stop member 321 can be made of a metal material such as iron, cobalt, nickel, etc. There is a magnetic attraction between the anti-rotation member 31 and the first stop member 321. The anti-rotation member 31 can move along the first direction X towards the first stop member 321 under the action of magnetic force, so that the anti-rotation member 31 is engaged with the first stop member 321 and their relative positions are fixed, putting the two of them in a locked state; a tool can be used to push the anti-rotation member 31 along the first direction X. The thrust provided by the tool can overcome the magnetic attraction between the anti-rotation member 31 and the first stop member 321, so that the anti-rotation member 31 and the first stop member 321 are at least partially separated, putting the two of them in an unlocked state.

[0138] Optionally, the first stop member 321 can also include any one of a permanent magnet and an electromagnet. The polarities of the sides of the anti-rotation member 31 and the first stop member 321 close to each other are opposite, resulting in a magnetic attraction between the two.

[0139] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, the anti-rotation member 31 and the first stop member 321 can switch states under the action of magnetic force, which is beneficial to improving the reliability and service life of the locking mechanism 100. Moreover, there is a gap aa between the first stop member 321 and the locking assembly 20, which is convenient for a tool to extend into this gap aa to push the anti-rotation member 31, so that the anti-rotation member 31 and the first braking member are at least partially separated. And it is beneficial to improve the diversity of locking and unlocking of the locking mechanism 100.

[0140] Specifically, the first stop member 321 can be connected to the base 10 and remain relatively fixed to the base 10. In the locked state, the anti-rotation member 31 and the first stop member 32 can be attracted and joined together as a whole under the action of magnetic force.

[0141] Please refer to Figure 4 and Figure 9 , in some optional embodiments, the first stop member 321 is disposed around the locking assembly 20.

[0142] In some optional embodiments, in the locked state, at least a part of one of the anti-rotation member 31 and the first stop member 321 is inserted into the other and they are engaged with each other.

[0143] Optionally, the anti-rotation member 31 and the first stop member 321 can be engaged with each other through the cooperation of a card slot and a protrusion. The card slot can be provided on one of the anti-rotation member 31 and the first stop member 321, and the protrusion can be provided on the other of the anti-rotation member 31 and the first stop member 321.

[0144] Optionally, the card slot is arranged on the side of the first stop member 321 close to the anti-rotation member 31 along the first direction X, and the protruding portion is arranged on the side of the anti-rotation member 31 close to the first stop member 321 along the first direction X. In the locked state, the anti-rotation member 31 is clamped with the card slot of the first stop member 321 through the protruding portion, so that the anti-rotation member 31 is engaged with the first stop member 321 and the relative positions are fixed.

[0145] The locking mechanism 100 provided by an embodiment of the present application sets the anti-rotation member 31 and the first stop member 321 as a clamping structure in the locked state to limit the rotation of the anti-rotation member 31, thereby restricting the rotation of the locking component 20 movably connected to the anti-rotation member 31, and further preventing the locking between it and the target component due to the rotation of the locking component 20, so as to play a role in preventing reverse rotation and loosening, which is beneficial to improving the reliability of the locking mechanism 100.

[0146] Please refer to Figure 4 、 Figure 6 and Figure 9 In some optional embodiments, a first engaging tooth 312 is arranged on the side of the anti-rotation member 31 close to the first stop member 321, and a second engaging tooth 3212 is arranged on the side of the first stop member 321 close to the anti-rotation member 31. In the locked state, the first engaging tooth 312 is engaged with the second engaging tooth 3212.

[0147] In the locked state, the anti-rotation member 31 can be engaged with the second engaging tooth 3212 of the first stop member 321 through the first engaging tooth 312 to realize the circumferential connection and fixation between the anti-rotation member 31 and the first stop member 32, so as to limit the rotation of the anti-rotation member 31, thereby restricting the rotation of the locking component 20 movably connected to the anti-rotation member 31.

[0148] Optionally, the engaging surface between the anti-rotation member 31 and the first stop member 321 can be a plane parallel to the second direction Y, or a plane or a funnel-shaped curved surface having a certain angle with the second direction Y or the first direction X.

[0149] Setting the anti-rotation member 31 and the first stop member 32 to be connected through inter-tooth engagement can make the locking between them stable and reliable. And after the anti-rotation member 31 rotates with the locking component 20, the anti-rotation member 31 can still be smoothly engaged and positioned with the first stop member 321, eliminating the step of finding the corresponding position for docking, and improving the reliability of the locking mechanism 100.

[0150] The locking mechanism 100 provided by an embodiment of the present application sets an engaging structure between the anti-rotation member 31 and the first stop member 321 in the locked state, which is beneficial to improving the reliability between them in the locked state.

[0151] In some optional embodiments, the anti-rotation component 31 has a first inclined surface 311, and the first stopping component 321 has a second inclined surface 3211. The extension directions of the first inclined surface 311 and the second inclined surface 3211 are the same and intersect with the first direction X. The first inclined surface 311 is provided with a first meshing tooth 312, and the second inclined surface 3211 is provided with a second meshing tooth 3212.

[0152] Optionally, the anti-rotation component 31 has a first inclined surface 311 on one side of the first stop component 321 along the first direction X, and the first stop component 321 has a second inclined surface 3211 on one side of the anti-rotation component 31 along the first direction X. The extension direction of the first inclined surface 311 and the second inclined surface 3211 may form an acute angle with the first direction X, that is, the first stop component 321 can be arranged around at least a portion of the anti-rotation component 31, so as to better prevent the anti-rotation component 31 from rotating.

[0153] The locking mechanism 100 provided in one embodiment of the present application further improves the reliability of the two in a locked state by setting the extension direction of the meshing surface between the anti-rotation member 31 and the first stop member 32 to intersect with the first direction X.

[0154] In some optional embodiments, the stop member 32 also includes a second stop member 322, which is connected to the locking assembly 20 and includes a magnetic adsorption material body. The second stop member 322 is arranged on the side of the anti-rotation member 31 away from the first stop member 321 along the first direction X and is spaced apart from the anti-rotation member 31. In the first direction X, the orthographic projection of the anti-rotation member 31 at least partially overlaps with the orthographic projection of the second stop member 322.

[0155] The second stopping component 322 may be connected to the locking assembly 20 . Specifically, the second stopping component 322 may be bonded to the locking assembly 20 , may be welded to the locking assembly 20 , or may be detachably connected to the locking assembly 20 via fasteners such as bolts.

[0156] When the stopper 32 and the second stopper component 322 have a magnetic repulsive force on the sides facing each other, the second stopper component 322 may also abut against the locking assembly 20 under the action of the repulsive force.

[0157] In the first direction X, the orthographic projection of the anti-rotation component 31 and the orthographic projection of the second stopping component 322 at least partially overlap, which means that the anti-rotation component 31 and the second stopping component 322 can be affected by the magnetic force in the first direction X.

[0158] See also Figure 4 and Figure 10 In some optional embodiments, the second stopping member 322 is disposed around the locking assembly 20 .

[0159] For the locking mechanism 100 provided by an embodiment of the present application, the stopping member 32 further includes a second stopping component 322 that can be made of a magnetically adsorbable material body. There is a magnetic force between the anti-rotation member 31 and the second stopping component 322, which helps to improve the flexibility of use of the locking mechanism 100.

[0160] As Figure 11 shown, in some alternative embodiments, the locking assembly 20 includes a locking body 21 and a connecting flange 22 connected to the peripheral side of the locking body 21. One side of the locking body 21 along the first direction X is configured to lock with or unlock from the target component, and the other side is movably connected to the anti-rotation member 31. The base 10, the connecting flange 22, and the second stopping component 322 are stacked in sequence along the first direction X, or the base 10, the second stopping component 322, and the connecting flange 22 are stacked in sequence along the first direction X.

[0161] By providing the connecting flange 22, it is convenient for the connection and positioning of the locking assembly 20 and the base 10, and it is also convenient for its connection with the second stopping component 322. Optionally, the anti-rotation member 31 can be connected to the connecting flange 22.

[0162] Optionally, the base 10 can abut against the side of the connecting flange 22 away from the anti-rotation member 31 along the first direction X, and the base 10 and the connecting flange 22 can also be set to be detachably connected, which is convenient for disassembly and replacement.

[0163] Optionally, the second stopping component 322 abuts between the base 10 and the connecting flange 22 to prevent the connecting flange 22 from shifting.

[0164] For the locking mechanism 100 provided by an embodiment of the present application, through the above settings, it is beneficial to improve the connection reliability between the locking assembly 20 and the base 10, and thus beneficial to improve the reliability of the locking mechanism 100.

[0165] The locking mechanism 100 of the battery 1000 provided by an embodiment of the present application includes a base 10, a locking assembly 20, and an anti-rotation assembly 30. The locking assembly 20 is connected to the base 10. The locking assembly 20 includes a locking body 21 and a connecting flange 22 connected to the peripheral side of the locking body 21. One side of the locking body 21 along the first direction X is configured to lock with or unlock from the target component, and the other side is movably connected to the anti-rotation member 31.

[0166] The anti-rotation assembly 30 is arranged between the base 10 and the locking assembly 20, and the anti-rotation assembly 30 includes an anti-rotation part 31, a first stop part 321 and a second stop part 322. The orthographic projection of a part of the locking assembly 20 along the first direction X is a polygonal structure, and is movably connected to the anti-rotation part 31 along the first direction X. The anti-rotation part 31 is arranged around the locking assembly 20, and the first stop part 321 and the second stop part 322 are arranged around the locking assembly 20. The first stop part 321 is connected to the base 10 and has a gap aa between it and the locking assembly 20 along the second direction Y. The second stop part 322 is arranged on a side of the anti-rotation part 31 away from the first stop part 321 along the first direction X and is spaced apart from the anti-rotation part 31. In the first direction X, the orthographic projection of the anti-rotation part 31 and the orthographic projection of the second stop part 322 at least partially overlap. The base 10, the connecting flange 22 and the second stop part 322 are stacked in sequence along the first direction X.

[0167] The anti-rotation member 31 and the second stop member 322 include a magnetic adsorption material body, and the magnetic adsorption material body includes any one of a permanent magnet and an electromagnet, so that the anti-rotation member 31 and the stop member 32 can switch between a locked state and an unlocked state under the action of a magnetic force. The anti-rotation member 31 has a first inclined surface 311, and the first stop member 321 has a second inclined surface 3211. The first inclined surface 311 and the second inclined surface 3211 extend in the same direction and intersect with the first direction X. The first inclined surface 311 is provided with a first meshing tooth 312, and the second inclined surface 3211 is provided with a second meshing tooth 3212. In the locked state, the anti-rotation member 31 is engaged with at least part of the first stop member 321 and the relative position is fixed, and the first meshing tooth 312 is meshed with the second meshing tooth 3212. In the unlocked state, the anti-rotation member 31 moves relative to the locking assembly 20 along the first direction X and is at least partially separated from the stop member 32, so that the locking assembly 20 has a rotational freedom relative to the stop member 32.

[0168] See also Figure 12 On the other hand, according to one embodiment of the present application, a battery 1000 is provided, comprising a box 300, a plurality of battery cells 200, and a locking mechanism 100 in any of the above embodiments. The plurality of battery cells 200 are disposed in the box 300. The base 10 of the locking mechanism 100 is connected to the box.

[0169] A plurality of battery cells 200 are housed in a case 300, and the case 300 can protect the battery cells 200. A locking mechanism 100 for connecting the battery to a target component is connected to the case.

[0170] Optionally, the base 10 in the locking mechanism 100 is connected to the box 60, and the target component can be connected to one side of the base 10 through the locking assembly 20, thereby realizing the connection between the battery and the target component, and the battery is used to provide electrical energy to the target component.

[0171] Optionally, the base 10 can be connected to the box body 300 by means of threaded connection, riveting, welding or other methods.

[0172] The battery 1000 provided by an embodiment of the present application includes a box body 300, a plurality of battery cells 200, and a locking mechanism 100. The locking mechanism 100 is connected to the box body 300 through the base 10 to lock the battery 1000 to the target component or release the lock between it and the target component.

[0173] In some alternative embodiments, the box body 300 is provided with mounting holes, and the base 10 passes through the mounting holes.

[0174] The box body 300 can be a simple three-dimensional structure such as a single cuboid, cylinder or sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as cuboids, cylinders or spheres. The embodiments of the present application do not limit this. The material of the box body 300 can be alloy materials such as aluminum alloy and ferroalloy, or polymer materials such as polycarbonate and polyisocyanurate foam plastics, or composite materials such as glass fiber reinforced epoxy resin. The embodiments of the present application also do not limit this.

[0175] The box body 300 is used to accommodate the battery cells 200, and the box body 300 can be of various structures. In some embodiments, the box body 300 may include a first box body part 310 and a second box body part 320. The first box body part 310 and the second box body part 320 cover each other, and the first box body part 310 and the second box body part 320 jointly define a receiving part 330 for accommodating the battery cells 200. Both the first box body part 310 and the second box body part 320 can be hollow structures with an opening on one side. The opening side of the first box body part 310 covers the opening side of the second box body part 320 to form the box body 300 with the receiving part 330. Of course, the first box body part 310 and the second box body part 320 can be of various shapes, such as cylinders, cuboids, etc.

[0176] The first box body part 310 can also be a plate-like structure, and the second box body part 320 can be a hollow structure with an opening on one side. The first box body part 310 covers the opening side of the second box body part 320 to form the box body 300 with the receiving part 330.

[0177] To improve the sealing performance after the connection between the first box body part 310 and the second box body part 320, a sealing member such as sealant, sealing ring, etc. can also be provided between the first box body part 310 and the second box body part 320.

[0178] In another aspect, according to an embodiment of the present application, a vehicle 1 is provided, including a vehicle body and the battery 1000 in any of the above embodiments. The vehicle body includes a fixing member 4000. The locking assembly 20 is connected to the fixing member 4000, and the battery 1000 is used to provide electric energy.

[0179] Optionally, the battery 1000 can be applied to the vehicle 1 and used to provide electric energy for the vehicle 1. The vehicle body of the vehicle 1 includes a fixing member 4000, and the fixing member 4000 can be a support beam of the vehicle body.

[0180] The battery 1000 can be detachably connected to the fixing member 4000 through a locking mechanism 100.

[0181] In the vehicle 1 provided by an embodiment of the present application, the locking assembly 20 of the locking mechanism 100 is connected to the fixing member 4000, and the base 10 of the locking mechanism 100 is connected to the battery 1000. The vehicle 1 can be locked with the battery 1000 or the locking between the vehicle 1 and the battery 1000 can be released through the locking mechanism 100. Since the locking mechanism 100 provided by the embodiment of the present application is beneficial to improving the reliability and service life, the vehicle 1 including this locking mechanism 100 is beneficial to ensuring the operation safety, preventing the locking mechanism 100 from loosening due to failure during the operation of the vehicle 1, avoiding the separation of the battery 1000 from the vehicle 1, and thus being beneficial to improving the reliability.

[0182] In some optional embodiments, the vehicle 11 further includes a support sleeve 5000, and the support sleeve 5000 is sleeved on the outer periphery of the locking assembly 20 and abuts between the fixing member and the base 10.

[0183] In the vehicle provided by an embodiment of the present application, by providing the support sleeve 5000, it is beneficial to increase the connection strength between the fixing member 4000 and the base 10, and also beneficial to preventing the base 10 from cracking due to stress concentration, beneficial to improving the protection effect on the base 10, and thus beneficial to improving the service life and reliability.

[0184] In some optional embodiments, the vehicle 1 further includes a fastener 6000, and the locking assembly 20 is connected to the fixing member 4000 through the fastener 6000.

[0185] Optionally, the fastener 6000 can be configured as structures such as nuts and bolts, and the fastener 6000 is threadedly connected to the locking assembly 20.

[0186] In the vehicle 1 provided by an embodiment of the present application, the locking assembly 20 and the fastener 6000 can be rotatably connected to lock or unlock the locking assembly 20 with the fixing member 4000, which is convenient for processing and manufacturing.

[0187] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered within the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A locking mechanism for a battery, characterized in that, Comprising: A base; A locking assembly connected to the base, the locking assembly being configured to be rotatable to lock or unlock from a target component; An anti-rotation assembly disposed between the base and the locking assembly, the anti-rotation assembly including an anti-rotation member and a stop member, the anti-rotation member being movably connected to the locking assembly along a first direction; Wherein at least one of the anti-rotation member and the stop member includes a magnetically adsorbing material body, so that the anti-rotation member and the stop member can be switched between a locked state and an unlocked state under the action of magnetic force; In the locked state, at least a part of the anti-rotation member and the stop member are engaged and their relative positions are fixed; in the unlocked state, the anti-rotation member moves relative to the locking assembly along the first direction and is at least partially separated from the stop member, so that the locking assembly has a rotational degree of freedom relative to the stop member.

2. The locking mechanism according to claim 1, wherein The magnetically adsorbing material body includes any one of a permanent magnet and an electromagnet.

3. The locking mechanism according to claim 1 or 2, characterized in that, The anti-rotation member is disposed around the locking assembly, and / or the stop member is disposed around the locking assembly.

4. The locking mechanism according to claim 1, characterized in that, The anti-rotation member and the locking assembly are slidably matched along the first direction.

5. The locking mechanism according to claim 4, characterized in that, One of the anti-rotation member and the locking assembly is provided with a sliding key extending along the first direction, and the other is provided with a sliding groove having a shape matching that of the sliding key and slidably mating therewith.

6. The locking mechanism according to claim 4 or 5, characterized in that, A part of the locking assembly has a polygonal structure in the orthographic projection along the first direction and is movably connected to the anti-rotation member along the first direction.

7. The locking mechanism according to claim 1, wherein, The anti-rotation member includes the magnetically adsorbing material body, the stop member includes a first stop component, the first stop component is connected to the base and has a gap with the locking assembly along a second direction, in the locked state, at least a part of the anti-rotation member and the first stop component are engaged and their relative positions are fixed, and the second direction intersects with the first direction.

8. The locking mechanism according to claim 7, wherein, In the locked state, at least a part of one of the anti-rotation member and the first stop component is inserted into the other and they are clamped with each other.

9. The locking mechanism according to claim 7 or 8, characterized in that, A first engaging tooth is provided on a side of the anti-rotation member close to the first stop component, a second engaging tooth is provided on a side of the first stop component close to the anti-rotation member, and in the locked state, the first engaging tooth and the second engaging tooth are engaged and connected.

10. The locking mechanism according to claim 9, characterized in that, The anti-rotation member has a first inclined surface, the first stop component has a second inclined surface, the extending directions of the first inclined surface and the second inclined surface are the same and intersect with the first direction, the first engaging tooth is provided on the first inclined surface, and the second engaging tooth is provided on the second inclined surface.

11. The locking mechanism according to claim 7, characterized in that, The stop member further includes a second stop component, the second stop component is connected to the locking assembly and includes the magnetically adsorbing material body, the second stop component is disposed on a side of the anti-rotation member along the first direction away from the first stop component and is spaced from the anti-rotation member, and in the first direction, the orthographic projection of the anti-rotation member and the orthographic projection of the second stop component at least partially overlap.

12. The locking mechanism according to claim 11, characterized in that, The locking assembly includes a locking body and a connecting flange connected to the periphery of the locking body. One side of the locking body along the first direction is configured to lock or unlock with the target component, and the other side is movably connected to the anti-rotation member. The base, the connecting flange, and the second stop member are stacked in sequence along the first direction, or the base, the second stop member, and the connecting flange are stacked in sequence along the first direction.

13. A battery, characterized in that, Comprising: A box body; A plurality of battery cells disposed in the box body; The locking mechanism according to any one of claims 1 to 12, wherein the base is connected to the box body.

14. A vehicle, characterized in that, Comprising: A vehicle body including a fixing member; The battery according to claim 13, wherein the locking assembly is connected to the fixing member, and the battery is used to provide electrical energy.

15. The vehicle according to claim 14, characterized in that, The vehicle further includes a support sleeve sleeved on the outer periphery of the locking assembly and abutted between the fixing member and the base.

16. The vehicle according to claim 14 or 15, characterized in that, The vehicle further includes a fastener, and the locking assembly is connected to the fixing member through the fastener.

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