Copper bar fixing frame, copper bar mounting structure, battery pack and electric equipment

Abstract

The embodiment of the utility model provides a copper bar fixing frame, a copper bar mounting structure, a battery pack and electric equipment, and relates to the field of power battery packs. The copper bar fixing frame comprises a fixing support, a clamping part and a connecting piece, the fixing support comprises a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are in angle connection with the bottom plate, and the first side plate and the second side plate are parallel to each other; the first side plate, the bottom plate and the second side plate are jointly enclosed to form a mounting cavity, and the mounting cavity is used for placing a copper bar; the clamping part is arranged on the inner wall of the first side plate and / or the inner wall of the second side plate, and the clamping part is used for clamping a copper bar; the connecting piece is arranged on the side, away from the mounting cavity, of the bottom plate in the Z direction and used for being rotationally connected with the cross beam. The copper bar can be simply and rapidly fixed, the copper bar can be conveniently positioned and installed, the installation operation is simple, and the installation efficiency is high. In addition, the copper bar fixing support is simple in structure.

Description

Technical Field

[0001] This utility model relates to the field of power battery packs, specifically to a copper busbar fixing frame, a copper busbar mounting structure, a battery pack, and electrical equipment. Background Technology

[0002] With the government's vigorous promotion of new energy, electric vehicles have become the mainstream trend of the future. Among them, the power battery pack is the most important power supply component of electric vehicles. The design of a power battery pack requires consideration of many aspects, including battery pack safety, assembly efficiency, energy density, production cost, and service life. A power battery pack consists of a casing, modules, a battery management system (BMS), electrical components, and thermal management components. The electrical copper busbars, as the carriers of current in the battery pack, connect all parts together. Therefore, the electrical copper busbars are crucial in the design process. Their functionality and safety, as well as their arrangement within the battery pack, must be considered. Thus, the overall layout of the battery pack needs to be comprehensively considered before determining the installation and fixing method of the copper busbars.

[0003] Currently, the installation and fixation of copper busbars inside power battery packs generally uses cable ties, and mounting holes need to be drilled in the battery pack structural components to serve as the positions for fixing the copper busbars. However, the above installation method is not only complicated to operate and inefficient, but also prone to problems such as inaccurate positioning and failure to install.

[0004] Furthermore, in the current new energy industry, the structure of battery packs is increasingly trending towards modularization. The result of modularization is that all the cells are placed inside the battery pack. Due to the large number of cells, the positive and negative terminals of the cells will inevitably not be on the same side. Or, in the case of four-wheel drive requirements, the high-voltage copper busbar needs to extend from the front to the back of the battery pack. The copper busbar has a high density and long length, and it needs to be fixed inside the box. However, in order to improve the energy density of the entire pack, there is not enough space inside the box to install more cable ties or even clips. Utility Model Content

[0005] This utility model provides a copper busbar fixing bracket, a copper busbar mounting structure, a battery pack, and electrical equipment, which can fix the copper busbar relatively simply and quickly, facilitate the positioning and installation of the copper busbar, and has simple installation operation and high installation efficiency. In addition, the copper busbar fixing bracket has a simple structure.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, embodiments of the present invention provide a copper busbar fixing bracket, which includes:

[0008] A fixed bracket includes a base plate, a first side plate and a second side plate that are angled to the base plate, and the first side plate and the second side plate are parallel to each other; the first side plate, the base plate and the second side plate together form a mounting cavity, which is used to place copper busbars;

[0009] A retaining part is provided on the inner wall of the first side plate and / or the inner wall of the second side plate, and the retaining part is used to retain the copper busbar;

[0010] A connector is provided along the Z-direction on the side of the base plate away from the mounting cavity, and the connector is used for rotatable connection with the crossbeam; the Z-direction is the height direction of the copper busbar fixing frame.

[0011] In an alternative embodiment, the connector has a rotating buckle protruding outward on the side away from the base plate, the rotating buckle being used to engage with the crossbeam.

[0012] In an alternative embodiment, along the Z direction, the side of the holding portion away from the base plate is inclined and tilted toward one side of the base plate.

[0013] In an optional embodiment, the first side plate and / or the second side plate are provided with a first mounting hole; the retaining part is disposed in the first mounting hole, and the retaining part has a gap with the first mounting hole.

[0014] In an optional embodiment, the copper busbar mounting bracket further includes an upper cover plate movably connected to the mounting bracket.

[0015] In an optional embodiment, one end of the upper cover plate is rotatably connected to the first side plate, and the other end of the upper cover plate is snapped into the second side plate;

[0016] Alternatively, one end of the upper cover plate is rotatably connected to the second side plate, and the other end of the upper cover plate is snapped into the first side plate.

[0017] Secondly, embodiments of this utility model also provide a copper busbar mounting structure, the copper busbar mounting structure including a crossbeam and the copper busbar fixing frame described in the first aspect above, the crossbeam including at least one inner cavity, the crossbeam having a second mounting hole communicating with the inner cavity, and the connector passing through the second mounting hole and rotatably disposed in the inner cavity.

[0018] Thirdly, embodiments of this utility model also provide a battery pack, including the copper busbar fixing frame described in the first aspect or the copper busbar mounting structure described in the second aspect.

[0019] Fourthly, embodiments of the present invention also provide an electrical device, including the battery pack described in the third aspect.

[0020] The beneficial effects of the copper busbar fixing frame, copper busbar mounting structure, battery pack, and electrical equipment of this utility model embodiment include:

[0021] The copper busbar mounting bracket includes a fixing bracket, a clamping part, and a connector. The fixing bracket includes a base plate and a first side plate and a second side plate that are angled to the base plate and are parallel to each other. The first side plate, the base plate, and the second side plate together form a mounting cavity for placing the copper busbar. By setting the base plate, the first side plate, and the second side plate to form a mounting cavity, the copper busbar can be installed in the mounting cavity, saving installation space for the copper busbar in the battery pack. The clamping part is located on the inner wall of the first side plate and / or the inner wall of the second side plate. The clamping part is used to clamp the copper busbar. By setting the clamping part, the copper busbar can be stably set in the mounting cavity of the fixing bracket, which facilitates quick positioning and installation of the copper busbar, simplifies the installation operation, and improves installation efficiency. The connector is located along the Z-direction on the side of the base plate away from the mounting cavity, and the connector is used for rotatable connection with the crossbeam. By setting the connector, the fixing bracket can be connected to the crossbeam in the battery pack, and the movement of the fixing bracket along the Z-direction is restricted. Furthermore, the connector and crossbeam are rotatably connected, allowing adjustment of the relative installation position of the fixing bracket and the crossbeam. This simplifies installation and increases efficiency. The copper busbar fixing bracket effectively secures the copper busbar without occupying a large space, and its structure is simple. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a partial structural schematic diagram of the battery pack provided in an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the copper busbar installation structure provided in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram from a first perspective of the copper busbar fixing bracket provided in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram from a second perspective of the copper busbar fixing bracket provided in an embodiment of the present utility model;

[0027] Figure 5 This is a third-view schematic diagram of the copper busbar fixing bracket provided in an embodiment of this utility model.

[0028] Icons: 1000 - Copper busbar installation structure; 100 - Copper busbar fixing frame; 110 - Fixing bracket; 111 - First side plate; 112 - Base plate; 1121 - First straight edge; 1122 - First rounded edge; 1123 - Second straight edge; 1124 - Second rounded edge; 113 - Second side plate; 114 - Mounting cavity; 115 - Holding part; 116 - Gap; 120 - Connector; 121 - Rotating buckle; 130 - Top cover plate; 200 - Crossbeam; 210 - Inner cavity; 2000 - Battery cell; 3000 - Copper busbar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] Please see Figure 1 , Figure 2 and Figure 3 The copper busbar fixing bracket 100 provided in the embodiments of this utility model can effectively improve the aforementioned technical problems. This copper busbar fixing bracket 100 can easily and quickly fix the copper busbar 3000, and facilitates the positioning and installation of the copper busbar 3000. The installation operation is simple and the installation efficiency is high. Furthermore, the copper busbar 3000 fixing bracket 110 has a simple structure and does not occupy a large space. This copper busbar fixing bracket 100 can be applied to battery packs, which can be applied to electrical equipment such as electric vehicles. Both the battery pack and the electrical equipment equipped with this copper busbar fixing bracket 100 have the same functions as described above, and will not be elaborated further here.

[0036] This utility model provides an electrical device, including a battery pack, in its embodiments. The battery pack in this embodiment includes a copper busbar fixing frame 100 or a copper busbar mounting structure 1000. The electrical device can be a switch cabinet, an electric vehicle, or other similar equipment, and is not limited thereto. Taking an electric vehicle as an example, the electric vehicle includes a vehicle body and a battery pack. The battery pack is installed inside the vehicle body and provides electrical energy to the vehicle body to realize its various functions.

[0037] Figure 1 This is a partial structural diagram of the battery pack provided in an embodiment of the present invention, as shown below. Figure 1 As shown, in this embodiment, the copper busbar mounting structure 1000 or copper busbar fixing bracket 100 is disposed between two adjacent rows of battery cells 2000 for connection to the positive and negative terminals of multiple battery cells 2000.

[0038] Figure 2 For a schematic diagram of the copper busbar mounting structure 1000 provided in an embodiment of this utility model, please refer to [link / reference]. Figure 2 and combined Figure 1, the busbar mounting structure 1000 provided in this embodiment includes a crossbeam 200 and a busbar fixing bracket 100. The crossbeam 200 includes at least one inner cavity 210. The crossbeam 200 is provided with a second mounting hole communicating with the inner cavity 210. The connecting member 120 is rotatably disposed in the inner cavity 210 through the second mounting hole. The crossbeam 200 including the inner cavity 210 facilitates the installation of the busbar fixing bracket 100 and also facilitates the rotation of the busbar fixing bracket 100 relative to the crossbeam 200. In this embodiment, the connecting member 120 is snap-connected to the crossbeam 200 through the second mounting hole, that is, the connecting member 120 is inserted into the second mounting hole at a certain angle, and then after rotating a certain angle, the connecting member 120 is snap-connected to the second mounting hole, thereby restricting the busbar fixing bracket 100 from moving in the Z direction. Of course, the connecting member 120 can also be detachably connected to the crossbeam 200. For example, after the connecting member 120 passes through the second mounting hole and is disposed in the inner cavity 210, a structural member such as a nut is tightened at one end of the connecting member 120 located in the inner cavity 210. Of course, other detachable connection structures can also be provided in the inner cavity 210 of the crossbeam 200 to achieve the detachable connection between the connecting member 120 and the crossbeam 200, which is not limited herein. The detachable connection between the crossbeam 200 and the connecting member 120 facilitates disassembly and installation, saving assembly time and subsequent maintenance time. In addition, the connecting member 120 and the crossbeam 200 can also be connected in a fixed connection manner, such as welding, which is not limited herein.

[0039] In order to reduce the weight of the crossbeam 200 while ensuring the structural strength of the crossbeam 200, the crossbeam 200 in this embodiment includes two inner cavities 210, and the two inner cavities 210 are arranged side by side and spaced apart in the Z direction. Of course, the crossbeam 200 can also include three, four, five, etc. inner cavities 210, and the number of inner cavities 210 is not limited. The multiple inner cavities 210 can be arranged side by side and spaced apart in the Z direction, or can be arranged in an array. For example, when the number of inner cavities 210 is four, the cross-section of the crossbeam 200 can be made into a "field" - shaped structure by arranging the positions of the four inner cavities 210. The arrangement of the multiple inner cavities 210 of the crossbeam 200 is determined according to actual installation requirements and structural strength, which is not limited herein.

[0040] The busbar fixing bracket 100 will be described in detail below.

[0041] Figure 3 For the schematic diagram of the first perspective of the busbar fixing bracket 100 provided in the embodiment of the present invention, please refer to Figure 3In this embodiment, the copper busbar fixing frame 100 includes a fixing bracket 110, a holding part 115, and a connecting member 120. The fixing bracket 110 includes a base plate 112, a first side plate 111 and a second side plate 113 connected to the base plate 112 at an angle, and the first side plate 111 and the second side plate 113 are parallel to each other. The first side plate 111, the base plate 112 and the second side plate 113 together form a mounting cavity 114, which is used to place the copper busbar 3000. The holding part 115 is provided on the inner wall of the first side plate 111 and / or the inner wall of the second side plate 113, and is used to hold the copper busbar 3000. The connecting member 120 is provided along the Z direction on the side of the base plate 112 away from the mounting cavity 114, and is used to rotatably connect with the crossbeam 200. In this embodiment, the Z direction is the height direction of the copper busbar fixing frame 100.

[0042] By setting a base plate 112, a first side plate 111, and a second side plate 113, which together enclose a mounting cavity 114, the copper busbar 3000 is installed within the mounting cavity 114, saving installation space for the copper busbar 3000 within the battery pack. The mounting cavity 114 also restricts the movement of the copper busbar 3000 along its width. By setting a retaining part 115, the copper busbar 3000 can be securely mounted within the mounting cavity 114 of the fixed bracket 110, facilitating quick positioning and installation, simplifying the installation operation, and improving installation efficiency. By setting a connector 120, the fixed bracket 110 can be connected to the crossbeam 200 within the battery pack, and the movement of the fixed bracket 110 along the Z-direction is restricted. Furthermore, the connector 120 and the crossbeam 200 are rotatably connected, allowing adjustment of the relative installation position of the fixed bracket 110 and the crossbeam 200, simplifying the installation operation and increasing installation efficiency. The copper busbar fixing bracket 100 can fix the copper busbar 3000 without taking up a lot of space, and its structure is simple.

[0043] Please see Figure 3 To ensure that the retaining part 115 securely holds the copper busbar 3000 and prevents it from moving along the Z-direction, in this embodiment, the side of the retaining part 115 away from the base plate 112 along the Z-direction is inclined towards the base plate 112. By setting the retaining part 115 to be inclined towards the base plate 112, i.e., by providing an inclination angle, friction and wear between the copper busbar 3000 and the retaining part 115 when it is engaged can be reduced, and the installation and removal of the copper busbar 3000 can also be facilitated. In addition, this inclined setting of the retaining part 115 can limit the copper busbar 3000 in the Z-direction to prevent it from moving along the Z-direction.

[0044] Figure 4 For a second-view schematic diagram of the copper busbar fixing bracket 100 provided in an embodiment of this utility model, please refer to [link / reference]. Figure 4 and combined Figure 3In this embodiment, the first side plate 111 and / or the second side plate 113 are provided with a first mounting hole; the retaining part 115 is disposed in the first mounting hole, and there is a gap 116 between the retaining part 115 and the first mounting hole. That is, only the first side plate 111 or only the second side plate 113 can be provided with a first mounting hole, or both the first side plate 111 and the second side plate 113 can be provided with a first mounting hole, and the first mounting hole is used to install the retaining part 115. By disposing the retaining part 115 in the first mounting hole and having a gap 116 between the retaining part 115 and the first mounting hole, the retaining part 115 can be elastic. When the copper busbar 3000 is inserted, the retaining part 115 can move slightly in the first mounting hole so that the copper busbar 3000 can be inserted into the mounting cavity 114. Specifically, in this embodiment, the retaining part 115 has gaps 116 with the left side wall, right side wall, and lower side wall at the first mounting hole position of the first side plate 111 or the second side plate 113. Of course, the retaining part 115 may only have a gap 116 with the lower side wall. The setting position of the gap 116 is determined according to the actual installation situation and is not limited here.

[0045] In this embodiment, there are multiple retaining parts 115. Multiple retaining parts 115 are spaced apart along the Z-direction on the first side plate 111, and / or multiple retaining parts 115 are spaced apart along the Z-direction on the second side plate 113. For ease of description, the retaining parts 115 on the first side plate 111 are referred to as first retaining parts 115, and the retaining parts 115 on the second side plate 113 are referred to as second retaining parts 115. When both the first side plate 111 and the second side plate 113 are provided with multiple retaining parts 115, the multiple first retaining parts 115 and the multiple second retaining parts 115 are arranged in a one-to-one correspondence. The multiple first retaining parts 115 and the correspondingly arranged multiple second retaining parts 115 divide the mounting cavity 114 into multiple smaller mounting cavities 114 along the Z-direction, and each smaller mounting cavity 114 houses at least one copper busbar 3000. That is, a first holding part 115 and a corresponding second holding part 115 are used together to hold at least one copper busbar 3000. In this embodiment, there are three first holding parts 115 and three second holding parts 115, dividing the mounting cavity 114 into four small mounting cavities 114 along the Z direction. Each small mounting cavity 114 is used to hold one copper busbar 3000. Of course, each small mounting cavity 114 can also hold two, three, four, or more copper busbars 3000, which is not limited here. Of course, the number of holding parts 115 can also be one, two, three, four, five, etc., which is not limited here.

[0046] To prevent the copper busbar 3000 from sliding out of the copper busbar fixing bracket 100 along the Z-direction from the side away from the base plate 112, the copper busbar fixing bracket 100 in this embodiment also includes an upper cover plate 130 movably connected to the fixing bracket 110. By providing the upper cover plate 130, it can be opened during the installation of the copper busbar 3000, allowing the copper busbar 3000 to be placed in the mounting cavity 114; after the copper busbar 3000 is installed, the upper cover plate 130 can be connected to the fixing bracket 110 to close the mounting cavity 114 along the Z-direction. Specifically, in this embodiment, one end of the upper cover plate 130 is rotatably connected to the first side plate 111, and the other end of the upper cover plate 130 is snapped into the second side plate 113; or, one end of the upper cover plate 130 is rotatably connected to the second side plate 113, and the other end of the upper cover plate 130 is snapped into the first side plate 111. The upper cover plate 130 is movably connected to the first side plate 111 or the second side plate 113. When installing the copper busbar 3000, the upper cover plate 130 can be opened to facilitate the insertion of the copper busbar 3000 into the mounting cavity 114. In addition, the upper cover plate 130 can also be detachably connected to the fixing bracket 110, such as by a snap-fit ​​connection or a bolt connection, etc., which are not limited here.

[0047] Figure 5 For a third-view schematic diagram of the copper busbar fixing bracket 100 provided in an embodiment of this utility model, please refer to [link / reference]. Figure 5 and combined Figure 2 and Figure 3 In this embodiment, the connecting member 120 has a rotating buckle 121 protruding outward on the side away from the base plate 112. The rotating buckle 121 is used to engage with the crossbeam 200. By setting the rotating buckle 121, the copper busbar fixing frame 100 and the crossbeam 200 are connected by a snap-fit ​​method, which allows for quick assembly and disassembly of the copper busbar fixing frame 100, saving assembly time and improving production efficiency.

[0048] Please continue reading. Figure 5In this embodiment, the base plate 112 includes a first straight edge 1121, a first arc edge 1122, a second straight edge 1123, and a second arc edge 1124 connected end to end. By designing the base plate 112 in this structural form, the rotation angle of the copper busbar fixing frame 100 relative to the crossbeam 200 can be limited. That is, after the copper busbar fixing frame 100 rotates a certain angle, it can no longer rotate relative to the crossbeam 200, thereby limiting the rotation of the copper busbar fixing frame 100 after installation to ensure the stability of the connection of the copper busbar fixing frame 100. In this embodiment, the included angle between the first straight edge 1121 and the first arc edge 1122 is 45°, and the included angle between the second straight edge 1123 and the second arc edge 1124 is also 45°; that is, at this time, the copper busbar fixing frame 100 can rotate 45° relative to the crossbeam 200. Of course, the angle between the first straight side 1121 and the first arc side 1122, and / or the angle between the second straight side 1123 and the second arc side 1124 can be other angles, such as 30°, 60°, 90°, etc., depending on the actual installation situation, and is not limited here.

[0049] In summary, the copper busbar fixing bracket 100 includes a fixing support 110, a holding part 115, and a connecting member 120. The fixing support 110 includes a base plate 112, a first side plate 111 and a second side plate 113 connected to the base plate 112 at an angle, and the first side plate 111 and the second side plate 113 are parallel to each other. The first side plate 111, the base plate 112 and the second side plate 113 together form a mounting cavity 114, which is used to place the copper busbar 3000. The holding part 115 is provided on the inner wall of the first side plate 111 and / or the inner wall of the second side plate 113, and is used to hold the copper busbar 3000. The connecting member 120 is provided along the Z direction on the side of the base plate 112 away from the mounting cavity 114, and the connecting member 120 is used for rotatable connection with the crossbeam 200. By setting a base plate 112, a first side plate 111, and a second side plate 113, which together enclose and form a mounting cavity 114, the copper busbar 3000 is installed in the mounting cavity 114, saving installation space for the copper busbar 3000 in the battery pack. By setting a retaining part 115, the copper busbar 3000 can be stably set in the mounting cavity 114 of the fixing bracket 110, which facilitates quick positioning and installation of the copper busbar 3000, simplifies the installation operation, and improves installation efficiency. By setting a connector 120, the fixing bracket 110 can be connected to the crossbeam 200 in the battery pack, and the movement of the fixing bracket 110 along the Z direction is restricted. In addition, the connector 120 and the crossbeam 200 are connected by a rotatable connection, which can adjust the relative installation position of the fixing bracket 110 and the crossbeam 200, making the installation operation simple and the installation efficiency high. This copper busbar fixing bracket 100 can fix the copper busbar 3000 without occupying a large space and has a simple structure.

[0050] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A copper bar fixing frame, characterized by, The copper bar fixing frame (100) comprises: A fixing support (110) comprising a bottom plate (112), a first side plate (111) and a second side plate (113) respectively connected with the bottom plate (112) at an angle, and the first side plate (111) and the second side plate (113) are parallel to each other; the first side plate (111), the bottom plate (112) and the second side plate (113) together form an installation cavity (114) for placing a copper bar (3000); A clamping part (115) provided on the inner wall of the first side plate (111) and / or the inner wall of the second side plate (113), the clamping part (115) is used for clamping the copper bar (3000); A connecting piece (120) provided on the side of the bottom plate (112) away from the installation cavity (114) in the Z direction, and the connecting piece (120) is used for rotatable connection with a cross beam (200); the Z direction is the height direction of the copper bar fixing frame.

2. The copper bar holder of claim 1, wherein The side of the connecting piece (120) away from the bottom plate (112) is outwardly convexly provided with a rotating buckle (121), and the rotating buckle (121) is used for clamping with the cross beam (200).

3. The copper bar holder of claim 1, wherein In the Z direction, the side of the clamping part (115) away from the bottom plate (112) is inclinedly provided, and the side inclined to the bottom plate (112).

4. The copper bar holder of claim 3, wherein The first side plate (111) and / or the second side plate (113) is provided with a first mounting hole; the clamping part (115) is arranged in the first mounting hole, and the clamping part (115) has a gap (116) with the first mounting hole.

5. The copper bar holder of claim 1, wherein The copper bar fixing frame (100) further comprises an upper cover plate (130) movably connected with the fixing support (110).

6. The copper bar holder of claim 5, wherein One end of the upper cover plate (130) is rotatably connected with the first side plate (111), and the other end of the upper cover plate (130) is clamped with the second side plate (113); Or, one end of the upper cover plate (130) is rotatably connected with the second side plate (113), and the other end of the upper cover plate (130) is clamped with the first side plate (111).

7. A copper bar mounting structure characterized by comprising: The copper bar mounting structure (1000) comprises a cross beam (200) and the copper bar fixing frame (100) of any one of claims 1-6, the cross beam (200) comprises at least one inner cavity (210), the cross beam (200) is provided with a second mounting hole communicating with the inner cavity (210), and the connecting piece (120) is rotatably arranged in the inner cavity (210) through the second mounting hole.

8. A battery pack, characterized by, The copper bar fixing frame (100) of any one of claims 1-6 or the copper bar mounting structure (1000) of claim 7.

9. An electric device, characterized by The battery pack of claim 8. The battery pack of claim 8.

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