Batteries and electrical devices

Abstract

The present application discloses a battery and an electrical device. The battery includes a frame and a battery module. The frame has a storage space, and the frame includes a first beam. The battery module is arranged in the storage space, and the battery module includes an end plate and a battery cell. The side of the end plate facing away from the battery cell has a first mortise and tenon portion. Among them, the first beam has a second mortise and tenon portion on the side facing the storage space, and the second mortise and tenon portion cooperates with the first mortise and tenon portion to limit the displacement of the battery module relative to the frame. The first mortise and tenon portion is arranged on the end plate, and the second mortise and tenon portion is arranged on the first beam. The battery module can be guided into the box body through the first mortise and tenon portion and the second mortise and tenon portion, and the auxiliary positioning tooling is eliminated, so as to improve the assembly efficiency and reduce the assembly cost. At the same time, after the battery module is installed into the box body, the displacement of the battery module relative to the box body is limited, and the structural stability of the battery 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 technology, how to improve the assembly efficiency of battery modules and boxes is also one of the issues that everyone is concerned about. Utility Model Content

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

[0005] In a first aspect, the present application provides a battery, including a frame and a battery module. The frame has a storage space, and the frame includes a first beam. The battery module is arranged in the storage space, and the battery module includes an end plate and a battery cell, and the end plate has a first mortise and tenon portion on the side facing away from the battery cell. The first beam has a second mortise and tenon portion on the side facing the storage space, and the second mortise and tenon portion cooperates with the first mortise and tenon portion to limit the displacement of the battery module relative to the frame.

[0006] In the technical solution of the embodiment of the present application, by setting a storage space in the frame for accommodating the battery module, a stable space is provided for the battery module, and the stability of the battery module operation is improved. A first mortise and tenon portion is set on the end plate, and a second mortise and tenon portion is set on the first beam body. The battery module can be guided into the box body through the first mortise and tenon portion and the second mortise and tenon portion, and the auxiliary positioning tooling is eliminated, so as to improve the assembly efficiency and reduce the assembly cost. At the same time, after the battery module is installed in the box body, the relative movement of the battery module to the box body is restricted, and the structural stability of the battery is improved.

[0007] In some embodiments, the battery cell is arranged on one side of the end plate along the first direction, and the first mortise and tenon portion extends along the second direction, and the second direction intersects the first direction. In the above structure, by extending the first mortise and tenon portion along the second direction, it is possible to facilitate the battery module to be loaded into the box along the second direction, and restrict the battery module from moving relative to the box along the first direction, thereby improving the stability of the battery structure.

[0008] In some embodiments, the first mortise and tenon portion includes a convex tenon portion along the surface of the end plate, and the second mortise and tenon portion includes a concave tenon portion along the surface of the first beam body. In the above structure, the mortise portion is arranged on the first beam body, which facilitates the manufacture of the mortise portion and improves the production efficiency of the box body.

[0009] In some embodiments, the tenon portion includes: a first wall portion and a second wall portion that are arranged relatively to each other along a third direction, and a third wall portion that is connected between the first wall portion and the second wall portion, and the third direction intersects with the plane where the first direction and the second direction are located. In the above structure, by providing the first wall portion and supporting with the second wall portion, the first wall portion and the second wall portion press against the first beam body to limit the movement of the end plate relative to the first beam body, and the third wall portion connects the first wall portion and the second wall portion, thereby improving the structural strength of the tenon portion and further improving the supporting performance of the tenon portion.

[0010] In some embodiments, the first wall portion, the second wall portion, the third wall portion and the end plate are enclosed together to form a cavity, and a reinforcing rib is provided in the cavity. In the above structure, by providing the reinforcing rib, the structural strength of the tenon is improved, the structural stability of the tenon is enhanced, and the risk of the end plate moving relative to the first beam body due to deformation of the tenon is reduced.

[0011] In some embodiments, the battery further comprises a sealing layer, which is disposed between the first mortise and tenon portion and the second mortise and tenon portion. In the above structure, the connection strength between the first mortise and tenon portion and the second mortise and tenon portion is improved by providing the sealing layer.

[0012] In some embodiments, the cross-sectional area of ​​the tenon gradually decreases along the second direction. In the above structure, the convenience of the tenon moving relative to the mortise can be improved, and the assembly efficiency of the battery module can be improved.

[0013] In some embodiments, a concave slot is provided on the surface of the tenon facing the first beam body, and a protruding strip is provided on the mortise, and the strip cooperates with the slot and restricts the movement of the tenon relative to the mortise. In the above structure, by providing the slot and the strip, the strength of the connection between the mortise and the tenon can be improved, and the risk of the end moving relative to the first beam body can be reduced.

[0014] In some embodiments, a limit strip is further provided on the surface of the first beam body facing the end plate, and the limit strip is provided on one side of the mortise along the second direction. In the above structure, the limit strip is provided to limit the movement of the end plate relative to the first beam body along the second direction, thereby further improving the stability of the relative position between the end plate and the first beam body.

[0015] In a second aspect, the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0016] 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

[0017] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the structure of a vehicle according to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the exploded structure of a battery according to an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a battery module provided in one embodiment of the present application;

[0021] Figure 4 A schematic diagram of the structure of a battery cell according to an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the structure of a battery according to another embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of a frame according to an embodiment of the present application;

[0024] Figure 7 This is a schematic structural diagram of a frame body according to another embodiment of the present application;

[0025] Figure 8 This is a schematic structural diagram of a first beam body according to an embodiment of the present application;

[0026] Fig. 9 This is a schematic structural diagram of an end plate according to an embodiment of the present application.

[0027] DETAILED DESCRIPTION OF REFERENCE NUMERALS

[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. Accommodation space; 501. Frame; 502. First beam; 503. Second mortise and tenon part; 504. Mortise; 505. Clip strip; 506. Limiting strip; 6. Battery module; 601. End plate; 602. First mortise and tenon part; 603. Tenon; 604. First wall; 605. Second wall; 606. Third wall; 607. Slot; 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 2 may be an energy storage device, including 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] Please refer to Figure 3 , Figure 3 A schematic diagram of the structure of a battery module provided for one 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.

[0046] 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.

[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 are placed 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 overall structural stability of the battery. In the related art, the limiting structure is usually to pre-embed or pre-install some components in the box mechanism before the battery module is placed in the box, and then use auxiliary tooling to position the battery module and place it in the box. After positioning is completed, it is connected to the preset components to realize the assembly and fixation of the battery module and the box. However, the above structure has cumbersome installation steps and low assembly efficiency, and it also needs to be equipped with auxiliary positioning tooling, which has high assembly costs.

[0052] Based on the above situation, an embodiment of the present application provides a battery, in which a housing space is provided in the frame for accommodating a battery module, providing a stable space for the battery module and improving the stability of the battery module operation. A first mortise and tenon portion is provided on the end plate, and a second mortise and tenon portion is provided on the first beam body. The battery module is guided into the box body through the first mortise and tenon portion and the second mortise and tenon portion, and the auxiliary positioning tooling is eliminated, thereby improving the assembly efficiency and reducing the assembly cost. At the same time, after the battery module is installed into the box body, the first mortise and tenon portion and the second mortise and tenon portion cooperate to limit the displacement of the battery module relative to the box body, thereby improving the structural stability of the battery.

[0053] The battery provided in the embodiment of the present application is described in detail below in conjunction with the accompanying drawings. Figures 2 to 6 , Figure 2 This is a schematic diagram of the exploded structure of a battery according to an embodiment of the present application. Figure 3 A schematic diagram of the structure of a battery module provided in one embodiment of the present application. Figure 4 This is a schematic structural diagram of a battery cell according to an embodiment of the present application. Figure 5 This is a schematic structural diagram of a battery according to another embodiment of the present application. Figure 6 This is a schematic diagram of the structure of a frame according to an embodiment of the present application.

[0054] The embodiment of the present application provides a battery 2, including a frame 501 and a battery module 6. The frame 501 has a receiving space 53, and the frame 501 includes a first beam 502. The battery module 6 is arranged in the receiving space 53, and the battery module 6 includes an end plate 601 and a battery cell 7, and the end plate 601 has a first mortise and tenon portion 602 on the side facing away from the battery cell 7. Among them, the first beam 502 has a second mortise and tenon portion 503 on the side facing the receiving space 53, and the second mortise and tenon portion 503 cooperates with the first mortise and tenon portion 602 to limit the displacement of the battery module 6 relative to the frame 501.

[0055] The first mortise and tenon part 602 and the second mortise and tenon part 503 can be a concave-convex connection method adopted on the component. Specifically, the tenon is the protruding part in the joint part of the component, and the mortise refers to the recessed part in the joint part of the component, and the tenon and the mortise bite together to play a connecting role. The first mortise and tenon part 602 can be a protruding part or a concave part, and correspondingly, the second mortise and tenon part 503 can be a concave part or a protruding part. There are many types of mortise and tenon structures. For example, the protruding tenon part can be a strip, a wedge, a trapezoid or an ellipse, and the shape of the concave mortise part corresponds to the tenon part, and the two bite each other to achieve a detachable connection between the two. The biggest advantage of the mortise and tenon structure is that there is no need to use screws, glue or other connectors to achieve the connection between the two components.

[0056] In the technical solution of the embodiment of the present application, a housing space 53 is provided in the frame 501 to accommodate the battery module 6, thereby providing a stable operating space for the battery module 6 and improving the stability of the operation of the battery module 6. A first mortise and tenon portion 602 is provided on the end plate 601, and a second mortise and tenon portion 503 is provided on the first beam 502 of the box body 5. The battery module 6 can be guided to be loaded into the box body 5 through the first mortise and tenon portion 602 and the second mortise and tenon portion 503, and the auxiliary positioning tooling is eliminated, thereby improving the assembly efficiency and reducing the assembly cost. At the same time, after the battery module 6 is loaded into the box body 5, the displacement of the battery module 6 relative to the box body 5 is limited, thereby improving the structural stability of the battery 2.

[0057] In some embodiments of the present application, the battery cell 7 is disposed on one side of the end plate 601 along the first direction X, and the first mortise and tenon portion 602 extends along the second direction Y, and the second direction Y intersects the first direction X. Optionally, the first direction X is perpendicular to the second direction Y. Exemplarily, the first direction X is the thickness direction of the battery cell 7, and the second direction Y is the height direction of the battery cell 7. During the process of assembling the battery module 6 into the box, it can move relative to the frame 501 along the second direction Y along the extension direction of the first mortise and tenon portion 602 and the second mortise and tenon portion 503.

[0058] In the above structure, by extending the first mortise and tenon portion 602 along the second direction Y, the battery module 6 can be easily loaded into the box body 5 along the second direction Y, and the battery module 6 is restricted from moving relative to the box body 5 along the first direction X, thereby improving the stability of the battery 2 structure.

[0059] like Figure 8 as well as Fig. 9 As shown, in some embodiments of the present application, the first mortise and tenon portion 602 includes a mortise portion 603 protruding along the surface of the end plate 601, and the second mortise and tenon portion 503 includes a mortise portion 504 concave along the surface of the first beam body 502. In the above structure, the mortise portion 504 is arranged on the first beam body 502, which facilitates the manufacture of the mortise portion 504 and improves the production efficiency of the box body 5.

[0060] In some optional embodiments, the box body 5 further includes a limiting beam disposed in the accommodating space 53, and both ends of the limiting beam are connected to the frame body 501, and the limiting beam is used to limit the deformation of the battery cell 7. A third mortise and tenon portion is provided on the side of the limiting beam facing the short plate, and the third mortise and tenon portion 602 cooperates with the first mortise and tenon portion to limit the movement of the end plate 601 relative to the limiting beam. Similarly, the battery module 6 can be guided to be loaded into the box body 5 through the first mortise and tenon portion 602 and the third mortise and tenon portion, and the auxiliary positioning tooling is eliminated, thereby improving the assembly efficiency and reducing the assembly cost. At the same time, after the battery module 6 is loaded into the box body 5, the displacement of the battery module 6 relative to the box body 5 is limited, thereby improving the structural stability of the battery 2.

[0061] Please refer to Figure 3 as well as Fig. 9In some embodiments of the present application, the tenon portion 603 includes: a first wall portion 604 and a second wall portion 605 that are arranged opposite to each other along a third direction Z, and a third wall portion 606 connected between the first wall portion 604 and the second wall portion 605. 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. Exemplarily, the third direction Z can be the width direction of the battery cell 7.

[0062] In the above structure, by setting the first wall portion 604 and supporting with the second wall portion 605, the first wall portion 604 and the second wall portion 605 are pressed against the first beam body 502 to limit the movement of the end plate 601 relative to the first beam body 502, and the third wall portion 606 connects the first wall portion 604 and the second wall portion 605, thereby improving the structural strength of the tenon 603 and further improving the supporting performance of the tenon 603.

[0063] In some optional embodiments, there are multiple first mortise and tenon parts 602, and the multiple first mortise and tenon parts 602 are arranged at intervals along the third direction Z. There are multiple second mortise and tenon parts 503, and the multiple second mortise and tenon parts 503 are arranged at intervals along the third direction Z, and the first mortise and tenon parts 602 correspond to the second mortise and tenon parts 503 one by one. The above structure can further improve the assembly efficiency of the battery module 6, improve the connection strength between the end and the first beam body 502, and improve the overall structural stability of the battery 2.

[0064] In some optional embodiments, the cross-sectional area of ​​the tenon 603 gradually decreases along the direction from the first beam 502 to the end plate 601. In the above structure, the width of the tenon 603 at one end close to the first beam 502 is larger, and the width of the tenon 603 at one end close to the end plate 601 is smaller. The above structure can reduce the risk of the tenon 603 moving relative to the mortise 504 along the first direction X, improve the stability of the connection between the tenon 603 and the mortise 504, and improve the stability of the connection structure between the first beam 502 and the battery module 6.

[0065] In some embodiments of the present application, the first wall portion 604, the second wall portion 605, the third wall portion 606 and the end plate 601 are enclosed together to form a cavity, and a reinforcing rib is provided in the cavity. In the above structure, by providing the reinforcing rib, the structural strength of the tenon 603 is improved, the structural stability of the tenon 603 is enhanced, and the risk of the end plate 601 moving relative to the first beam body 502 due to deformation of the tenon 603 is reduced.

[0066] In some embodiments of the present application, the battery 2 further includes a sealing layer, which is disposed between the first mortise and tenon portion 602 and the second mortise and tenon portion 503. Exemplarily, the sealing layer can be formed by applying a sealant between the tenon portion 603 and the tenon portion 504 and then cooling the sealant. In the above structure, the connection strength between the first mortise and tenon portion 602 and the second mortise and tenon portion 503 is improved by providing the sealing layer.

[0067] In some embodiments of the present application, the cross-sectional area of ​​the tenon 603 gradually decreases along the second direction Y. In some optional embodiments, the width of the mortise 504 gradually decreases along the second direction Y to match the tenon 603. In the above structure, the convenience of the movement of the tenon 603 relative to the mortise 504 can be improved, and the assembly efficiency of the battery module 6 can be improved.

[0068] like Figure 3 as well as Figure 8 As shown, in some embodiments of the present application, a concave groove 607 is provided on the surface of the tenon 603 facing the first beam body 502, and a protruding clamping strip 505 is provided on the mortise 504. The clamping strip 505 cooperates with the groove 607 and restricts the movement of the tenon 603 relative to the mortise 504. In the above structure, by providing the clamping groove 607 and the clamping strip 505, the strength of the connection between the mortise 504 and the tenon 603 can be improved, and the risk of the end moving relative to the first beam body 502 can be reduced.

[0069] like Figure 7 As shown, in some embodiments of the present application, a limiting strip 506 is further provided on the surface of the first beam body 502 facing the end plate 601, and the limiting strip 506 is provided on one side of the mortise 504 along the second direction Y. In the above structure, the limiting strip 506 is provided to limit the movement of the end plate 601 relative to the first beam body 502 along the second direction Y, thereby further improving the stability of the relative position between the end plate 601 and the first beam body 502.

[0070] The embodiment of the present application also provides an electrical device, which includes the battery 2 in the above embodiment, and the battery 2 is used to provide electrical energy. In the electrical device, a storage space 53 is set in the frame 501 to accommodate the battery module 6, providing a stable space for the battery module 6 to improve the stability of the operation of the battery module 6. A first mortise and tenon portion 602 is set on the end plate 601, and a second mortise and tenon portion 503 is set on the first beam 502. The battery module 6 can be guided to be loaded into the box body 5 through the first mortise and tenon portion 602 and the second mortise and tenon portion 503, and the auxiliary positioning tooling is eliminated, so as to improve the assembly efficiency and reduce the assembly cost. At the same time, after the battery module 6 is loaded into the box body 5, the displacement of the battery module 6 relative to the box body 5 is limited, thereby improving the structural stability of the battery 2.

[0071] 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: A frame (501) having a receiving space (53), wherein the frame (501) comprises a first beam body (502); A battery module (6) is arranged in the accommodating space (53), the battery module (6) comprising an end plate (601) and a battery cell (7), the end plate (601) having a first mortise and tenon portion (602) on a side facing away from the battery cell (7), The first beam body (502) has a second mortise and tenon portion (503) on one side facing the accommodating space (53), and the second mortise and tenon portion (503) cooperates with the first mortise and tenon portion (602) to limit the displacement of the battery module (6) relative to the frame body (501).

2. The battery (2) according to claim 1, characterized in that The battery cell (7) is arranged on one side of the end plate (601) along a first direction (X), the first mortise and tenon portion (602) extends along a second direction (Y), and the second direction (Y) intersects with the first direction (X).

3. The battery (2) according to claim 2, characterized in that: The first mortise and tenon portion (602) includes a tenon portion (603) protruding along the surface of the end plate (601), and the second mortise and tenon portion (503) includes a tenon portion (504) concave along the surface of the first beam body (502).

4. The battery (2) according to claim 3, characterized in that The tenon portion (603) includes: a first wall portion (604) and a second wall portion (605) arranged opposite to each other along a third direction (Z), and a third wall portion (606) connected between the first wall portion (604) and the second wall portion (605), and the third direction (Z) intersects with the plane where the first direction (X) and the second direction (Y) are located.

5. The battery (2) according to claim 4, characterized in that The first wall portion (604), the second wall portion (605), the third wall portion (606) and the end plate (601) together enclose a cavity, and a reinforcing rib is provided in the cavity.

6. The battery (2) according to any one of claims 1 to 5, characterized in that: The battery (2) further comprises a sealing layer, wherein the sealing layer is arranged between the first mortise and tenon portion (602) and the second mortise and tenon portion (503).

7. The battery (2) according to any one of claims 3 to 5, characterized in that: Along the second direction (Y), the cross-sectional area of ​​the tenon (603) gradually decreases.

8. The battery (2) according to any one of claims 3 to 5, characterized in that: The surface of the tenon (603) facing the first beam body (502) is provided with an inwardly concave groove (607), and the mortise (504) is provided with a protruding retaining strip (505), and the retaining strip (505) cooperates with the retaining groove (607) to limit the movement of the tenon (603) relative to the mortise (504).

9. The battery (2) according to any one of claims 3 to 5, characterized in that: A limiting strip (506) is also provided on the surface of the first beam body (502) facing the end plate (601), and the limiting strip (506) is provided on one side of the mortise (504) along the second direction (Y).

10. An electrical device, characterized in that: The electrical device comprises a battery (2) as claimed in any one of claims 1 to 9, and the battery (2) is used to provide electrical energy.

Images