Battery and electric device

Abstract

The utility model discloses a battery and an electric device. The battery comprises a box body and a battery module, the box body comprises a frame body and a first beam body connected to the frame body, and the frame body is provided with an accommodating space. The battery module is arranged in the accommodating space, the battery module comprises a battery monomer and an end plate, and one side surface of the end plate protrudes to form a first limiting part; wherein the battery monomers and the first beam body are arranged along a first direction, the first limiting part is arranged on one side of the first beam body along a second direction, the second direction intersects with the first direction, and the first beam body abuts against the first limiting part to limit the battery module to move relative to the first beam body along the second direction. The first limiting part and the first beam body part are arranged along the second direction, and the first beam body can limit the displacement of the first limiting part along the second direction, so that the displacement of the battery module along the second direction is limited. And moreover, connection limiting between most of the battery modules and the box body can be adapted, and the assembling efficiency of the battery modules entering the box is improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery and an electrical device. Background Art

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, electric tools, and energy storage systems, etc. Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, sodium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] With the development of new energy technologies, the market has put forward higher requirements on battery assembly efficiency and structural stability. Utility Model Content

[0004] In view of the above problems, the present application provides a battery and an electrical device, which can improve the assembly efficiency and structural stability of the battery.

[0005] In the first aspect, the present application provides a battery, including a box body and a battery module, the box body includes a frame body and a first beam body connected to the frame body, and the frame body has a storage space. The battery module is arranged in the storage space, and the battery module includes a battery cell and an end plate, and a surface of one side of the end plate protrudes to form a first limit portion. Among them, the battery cell and the first beam body are arranged along a first direction, and the first limit portion is arranged on one side of the first beam body along a second direction, the second direction intersects with the first direction, and the first beam body abuts against the first limit portion to limit the battery module from moving relative to the first beam body along the second direction.

[0006] In the technical solution of the embodiment of the present application, the battery module is limited by setting a frame to improve the structural stability of the battery. The battery module and the first beam are arranged along the first direction, and the first beam can limit the displacement of the battery module along the first direction; further, the first limiting portion and the first beam portion are arranged along the second direction, and the first beam can limit the displacement of the first limiting portion along the second direction, thereby limiting the displacement of the battery module along the second direction. Therefore, the above structure can limit the displacement of the battery module relative to the box along the first direction and the second direction, thereby improving the stability of the battery module structure. In addition, the above structure is universal and can adapt to most connections between battery modules and boxes, thereby improving the assembly efficiency of the battery module into the box.

[0007] In some embodiments, the box body further includes a support plate for supporting the battery module, the support plate is arranged on one side of the frame body along the second direction, and the first beam body is arranged on the side of the first limit portion away from the support plate. In the above structure, the support plate and the first beam body are arranged on both sides of the first limit portion along the second direction, which can further limit the movement of the end plate along the second direction and improve the structural stability of the battery module. In addition, the first beam body can be installed after the battery module enters the box body to apply pressure to the battery module, thereby improving the efficiency of installation and the accuracy of positioning the battery module.

[0008] In some embodiments, the first limiting portion includes a first limiting strip, both ends of the first limiting strip extend along a third direction, and the third direction intersects with the plane where the first direction and the second direction are located. The limiting strip structure is simple and easy to implement, and the first limiting strip and the first beam both extend along the third direction, which can improve the balance of the pressure applied by the first beam to the first limiting strip, and improve the stability of the battery module structure.

[0009] In some embodiments, the first limit bar includes a top wall and a bottom wall arranged opposite to each other along the second direction, and a side wall connected to the top wall and the bottom wall, and the side wall is arranged opposite to the end plate. In the above structure, the top wall abuts against the second limit bar, and the side wall and the bottom wall provide support for the top wall, which can improve the stability and support strength of the first limit bar structure.

[0010] In some embodiments, the top wall, the side wall, the bottom wall and the first beam body are enclosed together to form a cavity, and a reinforcing rib is provided in the cavity. In the above structure, the reinforcing rib is provided to increase the support strength of the first limit bar, reduce the risk of the end plate moving relative to the first box body, and improve the stability of the battery module relative to the first beam body.

[0011] In some embodiments, a limiting protrusion is provided on the surface of the first limiting strip facing the first beam, and a limiting groove is provided on the surface of the first beam facing the first limiting strip, and the limiting groove is used to accommodate the limiting protrusion. In the above structure, by providing the limiting protrusion, the movement of the first limiting strip relative to the first beam along the third direction or the first direction can be limited, thereby improving the structural stability of the connection between the end plate and the first beam.

[0012] In some embodiments, the first beam body further includes a hinge and a fixing member. The hinge is provided on the frame body, and the hinge is hinged to one end of the first beam body along the third direction. The fixing member is detachably connected to the other end of the first beam body along the third direction, and the fixing member is used to limit the rotation of the first beam body relative to the frame body. In the above technical solution, by providing a hinge, one end of the first beam body can be fixed first, so that the other end of the first beam body can be movable. After the end plate is installed inside the box body, one end of the first beam body can be rotated and fixed using the fixing member. This method improves the installation efficiency and the accuracy of the installation positioning.

[0013] In some embodiments, the frame body further includes a second beam body, the second beam body and the first beam body are arranged opposite to each other along the first direction, the second beam body is provided with a second limit portion, a third limit portion is provided on the side of the end plate facing the second beam body, and the second limit portion and the third limit portion cooperate with each other to limit the movement of the battery module relative to the second beam body. In the above structure, by providing the second beam body, the movement of the battery module along the first direction is limited by working together with the first beam body, and by providing the third limit portion and the fourth limit portion, the movement of the battery module relative to the second beam body is limited, thereby improving the structural stability of the battery.

[0014] In some embodiments, the third limiting portion includes a second limiting strip protruding along the surface of the end plate, and the second limiting portion includes a limiting groove concave along the surface of the second beam body. In the above structure, by placing the second limiting strip in the limiting groove, the end plate can be limited to move relative to the second beam body in the second direction, and the above structure does not occupy the internal space of the box body. Compared with setting other limiting structures, the structure of the second limiting strip and the limiting groove improves the energy density of the battery.

[0015] In some embodiments, the box body further includes a positioning assembly, which is disposed on a side of the first beam body facing the accommodation space, and / or the positioning assembly is disposed on a side of the second beam body facing the accommodation space. The positioning assembly includes a plurality of positioning bars spaced apart along a third direction, and the battery module is disposed between two adjacent positioning bars. In the above structure, the positioning assembly is provided to limit the movement of the battery module along the third direction, and to provide guidance for the installation of the battery module, thereby improving the assembly efficiency and positioning accuracy of the battery module.

[0016] In a second aspect, the present application provides an electrical device, which includes the battery in the above embodiment.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the structure of a vehicle according to an embodiment of the present application;

[0020] Figure 2 An exploded view of a battery provided in accordance with an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a battery module provided in one embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of a battery cell provided in one embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a box provided in one embodiment of the present application;

[0024] Figure 6 A schematic diagram of the main structure of an end plate provided in one embodiment of the present application;

[0025] Figure 7 A left-side structural schematic diagram of an end plate provided in one embodiment of the present application;

[0026] Figure 8 A schematic diagram of the structure of a box provided in another embodiment of the present application;

[0027] Fig. 9 This is a schematic diagram of the structure of a first beam provided in an embodiment of the present application.

[0028] 1. Vehicle; X, first direction; Y, second direction; Z, third direction; 2. Battery; 10. Electrode assembly; 20. Shell; 30. End cover; 40. Outer shell; 3. Controller; 4. Motor; 5. Box; 51. First part; 52. Second part; 53. Accommodating space; 501. First beam; 502. Frame; 503. Support plate; 504. Hinge; 505. Fixing member; 506. Second beam; 507. Second limiting part; 508. Positioning strip; 6. Battery module; 601. End plate; 602. First limiting part; 603. Top wall; 604. Bottom wall; 605. Side wall; 606. Third limiting part; 7. Battery cell. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0031] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0035] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for one embodiment of the present application. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 2 is provided inside the vehicle 1, and the battery 2 may be provided at the bottom, head or tail of the vehicle 1. The battery 2 may be used to power the vehicle 1, for example, the battery 2 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 3 and a motor 4, and the controller 3 is used to control the battery 2 to power the motor 4, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0038] In some embodiments of the present application, the battery 2 can be used not only as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0039] In some embodiments, the battery may be an energy storage device, which includes an energy storage container, an energy storage cabinet, and the like.

[0040] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery provided in one embodiment of the present application. The battery 2 includes a box body 5 and a battery cell 7, and the battery cell 7 is accommodated in the box body 5. The box body 5 is used to provide an accommodating space 53 for the battery cell 7, and the box body 5 can adopt a variety of structures.

[0041] In some optional embodiments, the box body 5 includes a first part 51 and a second part 52, the first part 51 and the second part 52 cover each other, and the first part 51 and the second part 52 jointly define a storage space 53 for accommodating the battery cell 7. The second part 52 can be a hollow structure with one end open, and the first part 51 can be a plate-like structure, and the first part 51 covers the open side of the second part 52, so that the first part 51 and the second part 52 jointly define the storage space 53; the first part 51 and the second part 52 can also be hollow structures with one side open, and the open side of the first part 51 covers the open side of the second part 52. Of course, the box body 5 formed by the first part 51 and the second part 52 can be a variety of shapes, such as a cylinder, a cuboid, etc.

[0042] In some embodiments, the box 5 can be used as part of the chassis structure of the vehicle 1. For example, part of the box 5 can become at least a part of the floor of the vehicle 1, or part of the box 5 can become at least a part of the cross beam and longitudinal beam of the vehicle 1.

[0043] In some embodiments, the first part 51 or the second part 52 may include a frame and a cover plate, and the frame includes a plurality of beam structures.

[0044] In the battery 2, there can be multiple battery cells 7, and the multiple battery cells 7 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 7 are both connected in series and in parallel. The multiple battery cells 7 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 7 is accommodated in the box 5. Of course, the battery 2 can also be a battery module formed by connecting multiple battery cells 7 in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box 5. The battery 2 can also include other structures, for example, the battery 2 can also include a converging component for realizing the electrical connection between the multiple battery cells 7.

[0045] Each battery cell 7 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 7 may be cylindrical, flat, rectangular or in other shapes.

[0046] Please refer to Figure 3 , Figure 3 A schematic diagram of the structure of a battery module 6 provided for an embodiment of the present application. The battery module includes a plurality of battery cells and a plurality of end plates, wherein the plurality of battery cells are stacked in the thickness direction, and two end plates are arranged at both ends of the battery cells in the thickness direction. The battery module may also include a binding strap, which is arranged along the circumference of the plurality of battery cells and is arranged on the side of the end plate away from the battery cell, and the binding strap can connect the end plate and the plurality of battery cells to improve the stability of the overall structure of the battery module.

[0047] Please refer to Figure 4 , Figure 4 The schematic diagram of the structure of a battery cell 7 provided in one embodiment of the present application. The battery cell 7 refers to the smallest unit constituting the battery 2. Figure 3 The battery cell 7 includes a housing 40, an electrode assembly 10 and other functional components.

[0048] The housing 40 may include an end cover 30 and a housing 20. The end cover 30 is a component that covers the opening of the housing 20 to isolate the internal environment of the battery cell 7 from the external environment.

[0049] The electrode assembly 10 is a component in the battery cell 7 where electrochemical reactions occur. One or more electrode assemblies 10 may be included in the housing 20. The electrode assembly 10 includes a positive electrode sheet, a negative electrode sheet, and a separator. During the charge and discharge process of the battery cell 7, active ions (such as lithium ions) are embedded and removed back and forth between the positive electrode sheet and the negative electrode sheet. The separator is arranged between the positive electrode sheet and the negative electrode sheet, which can prevent the positive and negative electrodes from short-circuiting and allow active ions to pass through. In some embodiments, the battery cell 7 also includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present application does not have any specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0050] In some embodiments, the electrode assembly 10 is a wound structure. Optionally, the electrode assembly 10 is a laminated structure.

[0051] In the process of battery assembly, the battery cells can be first assembled into battery modules, and then the battery modules can be installed in the box. After the battery module enters the box, it is necessary to limit the position between the battery module and the battery box to reduce the movement of the battery module relative to the box and improve the structural stability. In the related art, the limiting structure usually needs to be set according to the structure of the end plate, and special connectors are set at the structural stress points of the end according to different end plates and beam structures to firmly connect the battery module to the box. However, in the above-mentioned structure, the connection structure between the battery module and the box is greatly different, lacks universality, and has low assembly efficiency.

[0052] Based on the above considerations, an embodiment of the present application provides a battery, which limits the battery module by setting a frame to improve the structural stability of the battery. The battery module and the first beam are arranged along the first direction, and the first beam can limit the displacement of the battery module along the first direction; further, the first limiting portion and the first beam portion are arranged along the second direction, and the first beam can limit the displacement of the first limiting portion along the second direction, thereby limiting the displacement of the battery module along the second direction. Therefore, the above structure can limit the displacement of the battery module relative to the box along the first direction and the second direction, thereby improving the stability of the battery module structure. In addition, the above structure is universal and can adapt to most connections between battery modules and boxes, thereby improving the assembly efficiency of the battery module into the box.

[0053] The battery of the embodiment of the present application is described in detail below with reference to the accompanying drawings. Figures 3 to 7 , Figure 3 A schematic diagram of the structure of a battery module provided in one embodiment of the present application, Figure 4 A schematic diagram of the structure of a battery cell provided in one embodiment of the present application, Figure 5 This is a schematic diagram of the structure of a box provided in one embodiment of the present application. Figure 6This is a schematic diagram of the main structure of an end plate provided in one embodiment of the present application. Figure 7 A schematic diagram of the left-side structure of an end plate provided in one embodiment of the present application.

[0054] As shown in the figure, an embodiment of the present application provides a battery 2, including a box body 5 and a battery module 6, the box body 5 includes a frame body 502 and a first beam body 501 connected to the frame body 502, and the frame body 502 has a storage space 53. The battery module 6 is arranged in the storage space 53, and the battery module 6 includes a battery cell 7 and an end plate 601, and a side surface of the end plate 601 protrudes to form a first limit portion 602. Among them, the battery cell 7 and the first beam body 501 are arranged along the first direction X, and the first limit portion 602 is arranged on one side of the first beam body 501 along the second direction Y, the second direction Y intersects with the first direction X, and the first beam body 501 abuts against the first limit portion 602 to limit the battery module 6 from moving relative to the first beam body 501 along the second direction Y.

[0055] It is understandable that the thickness of the first beam 501 along the second direction Y is less than the thickness of the frame 502 along the second direction Y. The above structure can reduce the space occupied by the first beam 501 and improve the overall structural stability of the box 5 .

[0056] In some optional embodiments, the first beam body 501 includes a limiting beam, and both ends of the first beam body 501 are respectively connected to the frame body 502 and are used to limit the deformation of the battery cell 7. In the above structure, the limiting beam of the box body 5 is abutted against the end plate 601, which limits the displacement of the battery module 6 while limiting the deformation of the battery cell 7, thereby reducing the number of components inside the box body 5 and improving the energy density of the battery 2.

[0057] Optionally, the first direction X is perpendicular to the second direction Y. Exemplarily, the first direction X may be a thickness direction of the battery cell 7 , and the second direction Y may be a width direction of the battery cell 7 .

[0058] For example, the installation process of the battery module 6 in the embodiment of the present application may include: first, providing a frame 502 and a battery module 6, and installing the battery module 6 into the frame 502. Then, the first beam 501 is moved downward along the second direction Y to press against the first limit portion 602. Finally, the two ends of the first beam 501 are fixedly connected to the frame 502 to complete the assembly of the battery module 6.

[0059] In the technical solution of the embodiment of the present application, the battery module 6 is limited by setting the frame 502 to improve the structural stability of the battery 2. The battery 2 module and the first beam 501 are arranged along the first direction X, and the first beam 501 can limit the displacement of the battery 2 module along the first direction X; further, the first limiter 602 and the first beam 501 are arranged along the second direction Y, and the first beam 501 can limit the displacement of the first limiter 602 along the second direction Y, thereby limiting the displacement of the battery module 6 along the second direction Y. Therefore, the above structure can limit the displacement of the battery 2 module relative to the box 5 along the first direction X and the second direction Y, and improve the stability of the battery module 6 structure. In addition, the above structure is universal and can adapt to the connection between most battery modules 6 and the box 5, thereby improving the assembly efficiency of the battery module 6 into the box.

[0060] like Figure 7 as well as Figure 8 As shown, in some embodiments of the present application, the box body 5 also includes a support plate 503 for supporting the battery 2 module, the support plate 503 is arranged on one side of the frame body 502 along the second direction Y, and the first beam body 501 is arranged on the side of the first limit portion 602 away from the support plate 503. In the above structure, the support plate 503 and the first beam body 501 are arranged on both sides of the first limit portion 602 along the second direction Y, which can further limit the movement of the end plate 601 along the second direction Y and improve the structural stability of the battery 2 module. In addition, the first beam body 501 can be installed after the battery 2 module enters the box body 5, and pressure is applied to the battery 2 module, thereby improving the efficiency of installation and the accuracy of positioning the battery 2 module.

[0061] In some embodiments of the present application, the first limiting portion 602 includes a first limiting strip, both ends of the first limiting strip extend along a third direction Z, and the third direction Z intersects with the plane where the first direction X and the second direction Y are located. Optionally, the third direction Z is perpendicular to the plane where the first direction X and the second direction Y are located. The limiting strip structure is simple, easy to implement and has a high degree of commonality. In addition, the first limiting strip 1 and the first beam body 501 both extend along the third direction Z, which can improve the balance of the pressure applied by the first beam body 501 to the first limiting strip, and improve the structural stability of the battery module 6.

[0062] like Figure 7 As shown, in some embodiments of the present application, the first limiting strip includes a top wall 603 and a bottom wall 604 that are relatively arranged along the second direction Y, and a side wall 605 connected to the top wall 603 and the bottom wall 604, and the side wall 605 is arranged relatively to the end plate 601. In the above structure, the top wall 603 abuts against the second limiting strip, and the side wall 605 and the bottom wall 604 provide support for the top wall 603, which can improve the stability and support strength of the first limiting strip structure.

[0063] In some embodiments of the present application, the top wall 603, the side wall 605, the bottom wall 604 and the first beam body 501 are enclosed together to form a cavity, and a reinforcing rib is provided in the cavity. In the above structure, the reinforcing rib is provided to increase the support strength of the first limit bar, reduce the risk of the end plate 601 moving relative to the first box body 5, and improve the stability of the position of the battery module 6 relative to the first beam body 501.

[0064] In some embodiments of the present application, a limiting protrusion is provided on the surface of the first limiting strip facing the first beam body 501, and a limiting groove is provided on the surface of the first beam body 501 facing the first limiting strip, and the limiting groove is used to accommodate the limiting protrusion. In the above structure, by providing the limiting protrusion, the movement of the first limiting strip relative to the first beam body 501 along the third direction Z or the first direction X can be limited, thereby improving the structural stability of the connection between the end plate 601 and the first beam body 501.

[0065] like Figure 8 as well as Fig. 9 As shown, in some embodiments of the present application, the first beam body 501 further includes a hinge 504 and a fixing member 505. The hinge 504 is provided on the frame body 502, and the hinge 504 is hinged to one end of the first beam body 501 along the third direction Z. The fixing member 505 is detachably connected to the other end of the first beam body 501 along the third direction Z, and the fixing member 505 is used to limit the rotation of the first beam body 501 relative to the frame body 502.

[0066] Exemplarily, the fixing member 505 includes a fixing bolt, and the hinge 504 includes a rotating shaft, both ends of the rotating shaft extend along the second direction Y, and the rotating shaft passes through the first beam 501 and the frame 502 to connect the first beam 501 with the frame 502. One end of the rotating shaft is fixedly connected to the frame 502, and the other end is rotatably connected to the first beam 501. The first beam 501 can rotate around the rotating shaft, and the rotation direction of the first beam 501 can be rotated in the plane where the first direction X and the second direction Y are located. The first beam 501 can be rotated around the rotating shaft to move one end away from the frame 502, and a channel can be formed between the movable end of the first beam 501 and the frame 502, and the battery module 6 can be installed into the box 5 along the first direction X through the channel. After the battery module 6 is put into the box, the first beam 501 can be rotated back along the original path, and the first beam 501 can be rotated to the top of the first limit portion 602 of the end plate 601 along the second direction Y to position the battery module 6. Furthermore, the movable end of the first beam body 501 is fixedly connected to the frame body 502 through the fixing member 505 , thereby improving the stability of the connection between the first beam body 501 and the frame body 502 .

[0067] In the above technical solution, by setting a hinge 504, one end of the first beam body 501 can be fixed first, so that the other end of the first beam body 501 can be movable. After the end plate 601 is installed inside the box body 5, one end of the first beam body 501 can be rotated and fixed using the fixing member 505. This method improves the installation efficiency and the accuracy of installation positioning.

[0068] like Figure 6 as well as Figure 8 As shown, in some embodiments of the present application, the frame body 502 also includes a second beam body 506, the second beam body 506 is arranged opposite to the first beam body 501 along the first direction X, the second beam body 506 is provided with a second limiting portion 507, and a third limiting portion 606 is provided on the side of the end plate 601 facing the second beam body 506, and the second limiting portion 507 and the third limiting portion 606 cooperate with each other to limit the movement of the battery module 6 relative to the second beam body 506.

[0069] In some optional embodiments, the third limiting portion 606 and the first limiting portion 602 are the same structure. Exemplarily, the battery module 6 includes two ends, namely a first plate and a second plate, the first plate is arranged toward the first beam 501, and the second plate is arranged toward the second beam 506. A first limiting portion 602 is provided on the first plate, and the first limiting portion 602 cooperates with the second limiting portion 507 on the first beam 501. A third limiting portion 606 is provided on the second plate, and the third limiting portion 606 cooperates with the second limiting portion 507 on the second beam 506. It can be understood that in the battery module 6, the first plate and the second plate have the same structure, but the positions and directions of the first plate and the second plate are different. The above structure can improve the versatility of the end plate 601 and improve the assembly efficiency of the battery 2.

[0070] In the above structure, by setting the second beam 506, it works together with the first beam 501 to limit the movement of the battery module 6 along the first direction X, and by setting the third limiting portion 606 and the fourth limiting portion, the movement of the battery module 6 relative to the second beam 506 is limited, thereby improving the structural stability of the battery 2.

[0071] In some embodiments of the present application, the second limiting portion 507 includes a second limiting strip protruding along the surface of the end plate 601, and the third limiting portion 606 includes a limiting groove concave along the surface of the second beam 506. In the above structure, by placing the second limiting strip in the limiting groove, the end plate 601 can be limited to move relative to the second beam 506 along the second direction Y, and the above structure does not occupy additional internal space of the box body 5. Compared with setting other limiting structures, the structure of the second limiting strip and the limiting groove improves the energy density of the battery 2.

[0072] In some embodiments of the present application, the box body 5 further includes a positioning assembly, which is disposed on the side of the first beam body 501 facing the accommodating space 53, and / or the positioning assembly is disposed on the side of the second beam body 506 facing the accommodating space 53. The positioning assembly includes a plurality of positioning bars 508 spaced apart along the third direction Z, and the battery module 6 is disposed between two adjacent positioning bars 508. In the above structure, the positioning assembly is provided to limit the movement of the battery module 6 along the third direction Z, and to provide guidance for the installation of the battery module 6, thereby improving the assembly efficiency and positioning accuracy of the battery 2 module.

[0073] The embodiment of the present application also provides an electrical device, which includes the battery 2 in the above embodiment. In the electrical device of the present application, a frame 502 is set in the battery 2 to limit the battery module 6, thereby improving the structural stability of the battery 2. The battery 2 module and the first beam 501 are arranged along the first direction X, and the first beam 501 can limit the displacement of the battery 2 module along the first direction X; further, the first limit portion 602 and the first beam 501 are arranged along the second direction Y, and the first beam 501 can limit the displacement of the first limit portion 602 along the second direction Y, thereby limiting the displacement of the battery module 6 along the second direction Y. Therefore, the above structure can limit the displacement of the battery 2 module relative to the box 5 along the first direction X and the second direction Y, thereby improving the stability of the battery module 6 structure. In addition, the above structure is universal and can adapt to the connection between most battery modules 6 and the box 5, thereby improving the assembly efficiency of the battery module 6 into the box.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery (2), characterized in that: include: The box body (5) comprises a frame body (502) and a first beam body (501) connected to the frame body (502), wherein the frame body (502) has a containing space (53); A battery module (6) is arranged in the accommodating space (53), the battery module (6) comprising a battery cell (7) and an end plate (601), a side surface of the end plate (601) protruding to form a first limiting portion (602), The battery cell (7) and the first beam (501) are arranged along a first direction (X), the first limiting portion (602) is arranged on one side of the first beam (501) along a second direction (Y), the second direction (Y) intersects with the first direction (X), and the first beam (501) abuts against the first limiting portion (602) to limit the movement of the battery module (6) relative to the first beam (501) along the second direction (Y).

2. The battery (2) according to claim 1, characterized in that The box body (5) further comprises a support plate (503) for supporting the battery (2) module, wherein the support plate (503) is arranged on one side of the frame body (502) along the second direction (Y), and the first beam body (501) is arranged on a side of the first limiting portion (602) away from the support plate (503).

3. The battery (2) according to claim 1, characterized in that The first limiting portion (602) comprises a first limiting strip, both ends of which extend along a third direction (Z), and the third direction (Z) intersects with a plane where the first direction (X) and the second direction (Y) are located.

4. The battery (2) according to claim 3, characterized in that The first limiting strip includes a top wall (603) and a bottom wall (604) arranged opposite to each other along the second direction (Y), and a side wall (605) connected to the top wall (603) and the bottom wall (604), and the side wall (605) is arranged opposite to the end plate (601).

5. The battery (2) according to claim 4, characterized in that The top wall (603), the side wall (605), the bottom wall (604) and the first beam body (501) together enclose a cavity, and a reinforcing rib is provided in the cavity.

6. The battery (2) according to claim 3, characterized in that A limiting protrusion is provided on the surface of the first limiting strip facing the first beam body (501), and a limiting groove is provided on the surface of the first beam body (501) facing the first limiting strip, wherein the limiting groove is used to accommodate the limiting protrusion.

7. The battery (2) according to any one of claims 3 to 6, characterized in that: The first beam body (501) further comprises: A hinge (504) is provided on the frame (502), and the hinge (504) is hinged to one end of the first beam (501) along the third direction (Z); A fixing member (505) is detachably connected to the other end of the first beam body (501) along the third direction (Z), and the fixing member (505) is used to limit the rotation of the first beam body (501) relative to the frame body (502).

8. The battery (2) according to any one of claims 3 to 6, characterized in that: The frame body (502) comprises a second beam body (506), the second beam body (506) and the first beam body (501) are arranged opposite to each other along the first direction (X), the second beam body (506) is provided with a second limiting portion (507), and a third limiting portion (606) is provided on the side of the end plate (601) facing the second beam body (506), and the third limiting portion (606) and the second limiting portion (507) cooperate with each other to limit the movement of the battery module (6) relative to the second beam body (506).

9. The battery (2) according to claim 8, characterized in that The third limiting portion (606) comprises a second limiting strip protruding along the surface of the end plate (601), and the second limiting portion (507) comprises a limiting groove concave along the surface of the second beam body (506).

10. The battery (2) according to claim 8, characterized in that The box body (5) further comprises a positioning assembly, wherein the positioning assembly is arranged on a side of the first beam body (501) facing the accommodating space (53), and / or the positioning assembly is arranged on a side of the second beam body (506) facing the accommodating space (53). The positioning assembly comprises a plurality of positioning bars (508) arranged at intervals along the third direction (Z), and the battery module (6) is arranged between two adjacent positioning bars (508).

11. An electrical device, characterized in that: The electrical device comprises a battery (2) as claimed in any one of claims 1 to 10.

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