Copper bar connecting assembly, battery and electric equipment

Abstract

The utility model provides a copper bar connecting assembly, a battery and electric equipment. The copper bar connecting assembly is used for connecting two electrical devices, and comprises a copper bar; the two rotary joint connectors comprise plugs and sockets, the plugs of the two rotary joint connectors are electrically connected to the two ends of the copper bar respectively, the sockets are connected with the plugs in an inserted mode and are electrically connected with the plugs in a rotatable mode, and each socket is provided with an electric connecting part used for being electrically connected with electrical equipment. The battery comprises the copper bar connecting assembly. The electric equipment comprises the battery.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a copper busbar connection assembly, a battery and an electrical device. Background Art

[0002] In the related art, a copper busbar is usually connected between two electrical devices to achieve electrical connection between the two devices. The copper busbar is relatively soft. After being connected to the electrical device, if the position of the two electrical devices does not change much, the copper busbar can deform to a certain extent to maintain the electrical connection between the two electrical devices. However, if the position of the two electrical devices changes greatly, the copper busbar itself deforms and it is difficult to maintain the electrical connection between the two electrical devices.

[0003] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Utility Model Content

[0004] The purpose of the present application is to provide a copper busbar connection assembly, a battery and an electrical device, aiming to solve the problem that the position of two electrical devices varies greatly and the copper busbar connecting the two electrical devices itself is deformed, making it difficult to maintain the electrical connection between the two electrical devices.

[0005] A first aspect of the present application provides a copper busbar connection assembly for connecting two electrical devices, comprising: a copper busbar; and two rotary joint connectors, the rotary joint connector comprising a plug and a socket, the plugs of the two rotary joint connectors being electrically connected to the two ends of the copper busbar respectively, the sockets being plugged into and rotatably electrically connected to the plugs, and each socket being provided with an electrical connection portion for electrically connecting to the electrical device.

[0006] Based on the copper busbar connection assembly provided by the present application, since a rotary joint connector is connected to each of the two ends of the copper busbar, the socket of the rotary joint connector is plugged into the plug and is rotatably electrically connected to the plug, the copper busbar connection assembly increases the degree of freedom of rotation of the socket and the plug relative to the copper busbar in the related technology, improves the adaptability of the copper busbar connection assembly to position changes of the electrical equipment to which it is connected, and is beneficial to improving the stability of the electrical connection between the two electrical equipment.

[0007] In the copper busbar connection assembly of some embodiments, the socket and the plug are electrically connected rotatably around an axis perpendicular to the extension direction of the copper busbar.

[0008] The socket and the plug are rotatably electrically connected around an axis perpendicular to the extension direction of the copper busbar, which helps to increase the ability of the copper busbar connection assembly to move freely to adapt to changes in the position of the electrical equipment when the electrical equipment rotates or is misaligned in the same plane, and helps to improve the stability of the electrical connection between the two electrical equipment.

[0009] In some embodiments of the copper busbar connection assembly, the copper busbar includes a non-linear portion.

[0010] The copper busbar includes a non-linear portion, which helps the copper busbar increase the degree of freedom of the copper busbar connection assembly in the length direction and perpendicular to the length direction thereof, has a stronger adaptability to the phase position change of the two electrical devices, and helps improve the stability of the electrical connection between the two electrical devices.

[0011] In the copper busbar connection assembly of some embodiments, the socket is located at one side of the copper busbar; a protrusion is formed in the middle of the copper busbar and protrudes toward a side away from the socket relative to both ends of the copper busbar.

[0012] A protrusion is formed in the middle of the copper bar and protrudes toward the side away from the socket relative to the two ends of the copper bar, which is helpful to prevent the protrusion from interfering with the electrical equipment when the two electrical equipments are located close to each other.

[0013] In the copper busbar connection assembly of some embodiments, the protrusion is arc-shaped, and the protrusion is connected to both ends of the copper busbar in an arc-shaped transition connection.

[0014] The protrusion is arc-shaped, and the protrusion is connected to the two ends of the copper busbar in an arc-shaped transition, which is beneficial to reducing the local stress concentration of the copper busbar and extending the service life of the copper busbar.

[0015] In the copper busbar connection assembly of some embodiments, the copper busbar is fixedly connected to the plug; and / or the socket is snap-connected to the plug; and / or each socket is provided with a fixed connection portion for fixedly connecting to an electrical device.

[0016] The copper bar is fixedly connected to the plug, which helps prevent poor contact between the copper bar and the plug when the relative positions of the two electrical devices change, especially when they are far away from each other, thereby facilitating stable electrical connection between the copper bar and the plug.

[0017] The socket and the plug are connected by snap-fit, which is convenient for quick disassembly and assembly of the copper busbar connection assembly and the electrical equipment.

[0018] Each socket is provided with a fixed connection part for fixedly connecting with the electrical equipment. The socket can be fixed to the electrical equipment through the fixed connection part, thereby facilitating a more stable electrical connection between the electrical connection part and the electrical equipment, and facilitating maintaining a stable electrical connection between the copper busbar connection assembly and the electrical equipment when the electrical equipment is displaced.

[0019] In the copper busbar connection assembly of some embodiments, the plug has an insertion port, and the end of the copper busbar extends into the insertion port.

[0020] The end of the copper busbar extends into the plug interface, which is conducive to the rapid positioning and assembly of the copper busbar and the plug.

[0021] In the copper busbar connection assembly of some embodiments, the plug-in port is a square port, and the two ends of the copper busbar match the shape of the square port.

[0022] The plug interface is a square port, and the two ends of the copper busbar match the shape of the square port, which helps prevent the copper busbar and the plug from having poor contact when the relative positions between the two electrical devices change, especially when the copper busbar and the electrical device are twisted around the extension direction of the copper busbar, thereby facilitating a stable electrical connection between the copper busbar and the plug.

[0023] A second aspect of the present application provides a battery, comprising two battery modules and the copper busbar connection assembly of the first aspect of the present application, wherein the two battery modules are electrically connected via the copper busbar connection assembly.

[0024] The battery of the embodiment of the present application has the advantages of the copper busbar connection assembly of the embodiment of the present application.

[0025] A third aspect of the present application provides an electrical device, comprising the battery of the second aspect of the present application, and the battery is used to provide power to the electrical device.

[0026] The present application provides an electrical device having the advantages of the battery of the present application.

[0027] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of electrical equipment in some embodiments of the present application.

[0030] Figure 2 A schematic diagram of a battery structure in the form of a battery pack provided in some embodiments of the present application.

[0031] Figure 3 This is a schematic diagram of the structure of connecting two battery modules using a copper busbar connection assembly in some embodiments of the present application.

[0032] Figure 4 This is a schematic diagram of the structure of the copper busbar connection assembly of some embodiments of the present application.

[0033] Figure 5 for Figure 4 Schematic diagram of the main structure.

[0034] Figure 6 for Figure 4 Schematic diagram of the top view structure.

[0035] Figure 7 for Figure 4 Schematic diagram of the structure viewed from above.

[0036] Figure 8 for Figure 4 Schematic diagram of the side structure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0039] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] In the process of developing this application, the inventors discovered that when the related art uses a copper busbar to connect two electrical devices, if the position of the two electrical devices changes significantly, the copper busbar itself will deform and it will be difficult to maintain the electrical connection between the two electrical devices.

[0043] Therefore, the present application proposes a copper busbar connection assembly 3 for connecting two electrical devices. The copper busbar connection assembly 3 includes a copper busbar 31 and two rotary joint connectors 32 connected to both ends of the copper busbar 31. The socket 322 of the rotary joint connector 32 is plugged into the plug 321 and is rotatably electrically connected to the plug 321. This increases the degree of freedom of the rotation direction of the socket 322 and the plug 321 of the copper busbar connection assembly 3 relative to the copper busbar of the related art, improves the adaptability of the copper busbar connection assembly 3 to the position change of the electrical device connected thereto, and helps to improve the stability of the electrical connection between the two electrical devices.

[0044] Furthermore, the present application also proposes a battery including a copper busbar connection structure and an electrical device including the battery.

[0045] The battery is configured to provide electrical energy to electrical devices. Electrical devices may be, but are not limited to, mobile phones, portable devices, laptop computers, battery vehicles, electric vehicles, ships, spacecraft, electric toys, and electric tools, etc. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers.

[0046] The battery referred to in this application may be in the form of a battery pack or a battery module.

[0047] A battery module generally includes a battery pack formed by a plurality of battery cells, which are packaged together by a frame. The frame includes, for example, two end plates located at both ends of the battery cells and two side limiters located at both sides of the battery pack and connected to the two end plates. The side limiters include, for example, side plates or side connecting beams.

[0048] A battery pack is a single physical module that includes one or more battery cells to provide higher voltage and capacity. A battery pack generally includes a box for encapsulating one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0049] A battery cell refers to the smallest unit that makes up a battery. In the present application, battery cells may include lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application. Battery cells may be flat, rectangular, or in other shapes, which are not limited in the embodiments of the present application. Battery cells are generally packaged as square battery cells and soft-pack battery cells, which are not limited in the embodiments of the present application.

[0050] The battery cell mainly includes a battery core, a shell and an end cap assembly. The battery core is encapsulated in the housing space of the shell through the end cap of the end cap assembly, and the housing space is filled with electrolyte. The electrode assembly of the battery cell is the part where the electrochemical reaction occurs in the battery cell.

[0051] like Figures 3 to 8 As shown, the copper busbar connection assembly 3 provided in the embodiment of the present application is used to connect two electrical devices, including a copper busbar 31 and two rotary joint connectors 32. The rotary joint connector 32 includes a plug 321 and a socket 322. The plugs 321 of the two rotary joint connectors 32 are respectively electrically connected to the two ends of the copper busbar 31. The socket 322 is plugged into the plug 321 and is rotatably electrically connected to the plug 321. Each socket 322 is provided with an electrical connection portion 3221 for electrically connecting to an electrical device.

[0052] Electrical equipment such as Figure 3 The battery module M shown.

[0053] In the copper busbar connection assembly 3 of the embodiment of the present application, since a rotary joint connector 32 is connected to each of the two ends of the copper busbar 31, the socket 322 of the rotary joint connector 32 is plugged into the plug 321 and is rotatably electrically connected to the plug 321, the copper busbar connection assembly 3 increases the degree of freedom of rotation of the socket 322 and the plug 321 relative to the copper busbar in the related art, improves the adaptability of the copper busbar connection assembly 3 to the position change of the electrical equipment it is connected to, and is beneficial to improving the stability of the electrical connection between the two electrical equipment.

[0054] like Figures 4 to 8 As shown, in some embodiments of the copper busbar connection assembly 3 , the socket 322 is electrically connected to the plug 321 rotatably around an axis perpendicular to the extension direction of the copper busbar 31 .

[0055] The socket 322 and the plug 321 are rotatably electrically connected around an axis perpendicular to the extension direction of the copper busbar 31, which helps to increase the ability of the copper busbar connection assembly 3 to move freely to adapt to the position change of the electrical equipment when the electrical equipment rotates or misaligns in the same plane, and helps to improve the stability of the electrical connection between the two electrical equipment.

[0056] like Figures 4 to 5As shown, in the copper busbar connection assembly 3 of some embodiments, the copper busbar 31 includes a non-linear portion.

[0057] The copper bar 31 includes a non-linear portion, which is beneficial for the copper bar 31 to increase the length direction of the copper bar connection assembly 3 (corresponding to Figures 5 to 7 The freedom in the left and right directions (as shown) and the direction perpendicular to its length has a stronger adaptability to the changes in the phase position of the two electrical devices, which is beneficial to improving the stability of the electrical connection between the two electrical devices.

[0058] like Figures 3 to 5 As shown, in some embodiments of the copper busbar connection assembly 3, the socket 322 is located on one side of the copper busbar 31; a protrusion 311 is formed in the middle of the copper busbar 31, which protrudes toward a side away from the socket 322 relative to both ends of the copper busbar 31.

[0059] A protrusion 311 is formed in the middle of the copper bar 31 and protrudes toward a side away from the socket 322 relative to both ends of the copper bar 31 , which helps to prevent the protrusion 311 from interfering with the electrical equipment when the two electrical equipments are close to each other.

[0060] like Figures 4 to 5 As shown, in some embodiments of the copper busbar connection assembly 3 , the protrusion 311 is arc-shaped, and the protrusion 311 is connected to both ends of the copper busbar 31 in an arc-shaped transition.

[0061] The protrusion 311 is arc-shaped, and the protrusion 311 is connected to both ends of the copper bar 31 in an arc-shaped transition, which is beneficial to reducing the local stress concentration of the copper bar 31 and extending the service life of the copper bar 31.

[0062] like Figures 3 to 8 As shown, in some embodiments of the copper busbar connection assembly 3, the copper busbar 31 is fixedly connected to the plug 321; and / or the socket 322 is snap-connected to the plug 321; and / or each socket 322 is provided with a fixed connection portion 3222 for fixed connection with an electrical device.

[0063] The copper bus 31 and the plug 321 are fixedly connected to prevent poor contact between the copper bus 31 and the plug 321 when the relative positions of the two electrical devices change, especially when they are far away from each other, thereby facilitating stable electrical connection between the copper bus 31 and the plug 321.

[0064] The socket 322 is snap-connected with the plug 321, which facilitates quick disassembly and assembly of the copper busbar connection assembly 3 and the electrical equipment.

[0065] Each socket 322 is provided with a fixed connection portion 3222 for fixed connection with the electrical equipment. The socket 322 can be fixed to the electrical equipment through the fixed connection portion 3222, thereby facilitating a more stable electrical connection between the electrical connection portion 3222 and the electrical equipment, and facilitating maintaining a stable electrical connection between the copper busbar connection assembly 3 and the electrical equipment when the electrical equipment is displaced.

[0066] like Figures 3 to 8 As shown, in some embodiments of the copper busbar connection assembly 3, the plug 321 has a plug interface, and the end of the copper busbar 31 extends into the plug interface.

[0067] The end of the copper busbar 31 extends into the plug interface, which facilitates the rapid positioning and assembly of the copper busbar 31 and the plug 321 .

[0068] like Figures 4 to 7 As shown, in some embodiments of the copper busbar connection assembly 3, the plug-in port is a square port, and both ends of the copper busbar 31 match the shape of the square port.

[0069] The plug interface is a square port, and the two ends of the copper busbar 31 match the shape of the square port, which helps prevent the copper busbar 31 and the plug 321 from having poor contact when the relative positions between the two electrical devices change, especially when the copper busbar 31 and the electrical device are twisted around the extension direction of the copper busbar 31, thereby facilitating a stable electrical connection between the copper busbar 31 and the plug 321.

[0070] like Figure 2 As shown, the second aspect of the present application provides a battery B, including two battery modules M and the copper busbar connection assembly 3 of the first aspect of the present application, and the two battery modules M are electrically connected through the copper busbar connection assembly 3.

[0071] The battery B of the embodiment of the present application has the advantages of the copper busbar connection assembly 3 of the embodiment of the present application.

[0072] like Figure 1 As shown, the third aspect of the present application provides an electrical device D, including the battery B of the second aspect of the present application, and the battery B is used to provide power to the electrical device D.

[0073] The present application provides an electrical device D having the advantages of the battery B of the present application.

[0074] The following combination Figures 1 to 8 The copper busbar connection assembly 3, battery B and electrical equipment D of the embodiment of the present application are further described.

[0075] Please refer to Figure 1 . Figure 1 The schematic diagram of the structure of the electric device vehicle D provided in some embodiments of the present application. The vehicle D can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. Figure 2 The vehicle D is provided with a battery B inside, and the battery B can be provided at the bottom, head or tail of the vehicle D. The battery B can be used for powering the vehicle D, for example, it can be used as an operating power source of the vehicle D.

[0076] In some embodiments of the present application, battery B can not only serve as an operating power source for vehicle D, but also serve as a driving power source for vehicle D, replacing or partially replacing fuel or natural gas to provide driving power for vehicle D.

[0077] In the embodiment of the present application, battery B is Figure 2 The battery pack P shown in FIG. 1 includes Figure 3 The battery module M shown.

[0078] Figure 2 The schematic diagram of the structure of the battery pack P provided in some embodiments of the present application. The battery pack P includes a box body 1 and a battery module M contained in the box body 1. In this embodiment, the number of the battery modules M is two. In an embodiment not shown in the figure, the number of the battery modules M can be more. Figure 3 As shown, the two battery modules M are electrically connected via the copper busbar connection assembly 3 of the embodiment of the present application.

[0079] like Figure 2 As shown, the box body 1 includes a bottom shell 11 and a box cover 12 buckled on the bottom shell 11, and the box body 1 is used to provide a storage space for the battery module M. In the above embodiments, the box body 1 is a rectangular parallelepiped as a whole. In embodiments not shown in the figure, the box body 1 can also be other shapes, such as a cylinder. In some embodiments, the box body can be used as part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the crossbeam and longitudinal beam of the vehicle.

[0080] The battery module M generally includes a battery pack and a limiting component located at the periphery of the battery pack. The battery pack includes a plurality of battery cells arranged side by side. The plurality of battery cells of the battery pack can be connected in series, in parallel, or in mixed connection. The plurality of battery cells of the battery pack are electrically connected through an electrical connection component, such as a CCS (Cells Contact System) integrated busbar (not shown). The electrical connection component has an output pole.

[0081] like Figures 3 to 8 In the illustrated embodiment, the copper busbar connection assembly 3 is used to connect two battery modules M of the battery B. The copper busbar connection assembly 3 includes a copper busbar 31 and two rotary joint connectors 32. The rotary joint connector 32 includes a plug 321 and a socket 322. The plugs 321 of the two rotary joint connectors 32 are electrically connected to the two ends of the copper busbar 31, respectively. The socket 322 is plugged into the plug 321 and is rotatably electrically connected to the plug 321 around an axis perpendicular to the extension direction of the copper busbar 31. Each socket 322 is provided with an electrical connection portion 3221 for electrically connecting to an electrical device.

[0082] like Figures 4 to 5As shown, the socket 322 is located on one side of the copper bar 31. A protrusion 311 is formed in the middle of the copper bar 31, which protrudes toward a side away from the socket 322 relative to the two ends of the copper bar 31. The protrusion 311 is arc-shaped, and the protrusion 311 is connected to the two ends of the copper bar 31 in an arc-shaped transition.

[0083] like Figures 3 to 8 As shown, the socket 322 is snap-connected with the plug 321 .

[0084] like Figures 3 to 8 As shown, the plug 321 has a plug interface, which is a square opening. The two ends of the copper busbar 31 match the shape of the square opening. The end of the copper busbar 31 extends into the plug interface and is fixedly connected to the plug 321 by screws.

[0085] The socket 322 is provided with a fixed connection part 3222 for fixed connection with the electrical device. The fixed connection part 3222 includes a flange. The flange is provided with a plurality of fixing holes.

[0086] The electrical connection portion 3221 of the copper busbar connection assembly 3 includes a connection through hole, and the electrical connection portion 3221 can be electrically connected to the output pole of the electrical connection component of the battery module by a screw passing through the connection through hole, thereby realizing the electrical connection between the copper busbar connection assembly 3 and the battery module M. The copper busbar connection assembly 3 is fixedly connected to the top cover plate of the battery module M by screws passing through the fixing holes of the flange.

[0087] According to the above description, in the embodiment of the present application, the copper bar connection assembly 3 includes a copper bar 31 and two rotary joint connectors 32 respectively connected to both ends of the copper bar 31, and the copper bar 31 includes a protrusion 311, which is conducive to relieving the stress of the copper bar 31 along the length direction of the copper bar connection assembly 3 and avoiding the twisting of the copper bar 31 during installation and use. The copper bar connection assembly 3 is used to make an electrical connection between two battery modules M. Compared with the cable connection method used in the related art, a larger cable bending radius and layout space are not required, thereby saving layout space.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution requested for protection in this application.

Claims

1. A copper busbar connection assembly (3) for connecting two electrical devices, characterized in that: include: Copper busbar (31); and Two rotary joint connectors (32), the rotary joint connectors (32) comprising a plug (321) and a socket (322), the plugs (321) of the two rotary joint connectors (32) being electrically connected to two ends of the copper busbar (31) respectively, the sockets (322) being plugged into the plugs (321) and being rotatably electrically connected to the plugs (321), and each socket (322) being provided with an electrical connection portion (3221) for electrically connecting to the electrical equipment.

2. The copper busbar connection assembly (3) according to claim 1, characterized in that: The socket (322) is electrically connected to the plug (321) so as to be rotatable around an axis perpendicular to the extension direction of the copper busbar (31).

3. The copper busbar connection assembly (3) according to claim 1, characterized in that: The copper busbar (31) comprises a non-linear portion.

4. The copper busbar connection assembly (3) according to claim 3, characterized in that: The socket (322) is located on one side of the copper busbar (31); A protrusion (311) is formed in the middle of the copper bar (31) and protrudes toward a side away from the socket (322) relative to both ends of the copper bar (31).

5. The copper busbar connection assembly (3) according to claim 4, characterized in that: The protruding portion (311) is arc-shaped, and the protruding portion (311) is connected to two ends of the copper busbar (31) in an arc-shaped transition.

6. The copper busbar connection assembly (3) according to any one of claims 1 to 5, characterized in that: The copper busbar (31) is fixedly connected to the plug (321); and / or The socket (322) is connected to the plug (321) by snap-fitting; and / or Each socket (322) is provided with a fixed connection portion (3222) for fixedly connecting to the electrical equipment.

7. The copper busbar connection assembly (3) according to claim 6, characterized in that: The plug (321) has a plug interface, and the end of the copper busbar (31) extends into the plug interface.

8. The copper busbar connection assembly (3) according to claim 7, characterized in that: The plug-in port is a square port, and the two ends of the copper busbar (31) match the shape of the square port.

9. A battery (B), characterized in that: It comprises two battery modules (M) and a copper busbar connection assembly (3) according to any one of claims 1 to 8, wherein the two battery modules (M) are electrically connected via the copper busbar connection assembly (3).

10. An electrical device (D), characterized in that: The device comprises a battery (B) according to claim 9, wherein the battery (B) is used to provide power to the power-consuming device (D).

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