Anti-rotation support and battery pack

Abstract

The invention relates to the technical field of batteries, and discloses an anti-rotation support and a battery pack, and the anti-rotation support comprises a base and a cover body. According to the anti-rotation support, a cover body of an integral structure in the prior art is designed into a plurality of branch cover bodies which are rotationally connected, when the cover body is installed, the branch cover body at one end is firstly installed, the other branch cover bodies are rotated to be away from the base, installation interference is avoided, and then the other branch cover bodies are sequentially installed. When abnormity occurs and the state of the high-voltage connector in the anti-rotation support needs to be detected or observed, the sub-cover body at one end can be disassembled firstly, observation is carried out through the operation opening in the sub-cover body, and compared with overall disassembly of the cover body, the disassembly difficulty of the cover body can be reduced. The cover bodies are mounted and dismounted for several times, so that the mounting and dismounting difficulty of the cover bodies can be greatly reduced, mutual interference of the two ends of the cover bodies in the dismounting and mounting process is avoided, the cover bodies can be effectively prevented from being damaged in the dismounting and mounting process, and the service life of the cover bodies can be effectively prolonged; moreover, the cover body can be repeatedly disassembled and assembled, so that the cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and particularly relates to an anti-rotation bracket and a battery pack. Background Art

[0002] The high-voltage connector is electrically connected to the copper bar or high-voltage wire in the battery pack through bolts. The high-voltage connector is assembled on the anti-rotation bracket, and the anti-rotation bracket protects the high-voltage connector and prevents safety problems such as short circuits at the high-voltage connection point. The anti-rotation bracket includes a base and a cover body. The base is provided with a socket hole for inserting the high-voltage connector. The upper part of the base is open, and the high-voltage connector is connected to the copper bar through the opening. After the high-voltage connector is connected to the copper bar, the cover body is buckled on the base to prevent the high-voltage connection point from being exposed. Both the base and the cover body of the anti-rotation bracket are made of plastic materials, and their materials are relatively brittle. The cover body and the base are fixed by a snap-fit method. During the installation and disassembly process, the cover body is easily damaged, resulting in a high product rejection rate. Summary of the Invention

[0003] In view of this, the present invention provides an anti-rotation bracket and a battery pack to solve the problem that the cover body of the existing anti-rotation bracket is easily damaged during the installation and disassembly process.

[0004] In a first aspect, the present invention provides an anti-rotation bracket, including:

[0005] A base, with buckling parts provided at opposite ends, an operation port provided at the top of the base, and a socket and an inlet / outlet provided on the base;

[0006] A cover body, including at least two sub-cover bodies connected in sequence. The adjacent ends of the adjacent sub-cover bodies are rotatably connected. The outer ends of the sub-cover bodies at both ends of the arrangement direction of all the sub-cover bodies are provided with clamping parts. The sub-cover bodies cover the operation port, and the clamping parts are in clamping fit with the buckling parts.

[0007] Beneficial effects: For the anti-rotation bracket with this structure, the high-voltage connector is inserted into the base through the insertion port, and the copper bar is inserted into the base through the inlet and outlet. After the high-voltage connector is connected to the copper bar, the cover body is buckled on the base to cover the operation port at the top of the base. The anti-rotation bracket designs the cover body with an integral structure in the prior art into multiple sub-cover bodies that are rotatably connected. When installing the cover body, first install the sub-cover body at one end, and rotate the remaining sub-cover bodies away from the base to avoid installation interference. Then, sequentially install the remaining sub-cover bodies until all the sub-cover bodies are covered on the base. The clamping portions at the outer ends of the two end sub-cover bodies are clamped on the buckling portion of the base to fix the entire cover body on the base. When an abnormality occurs and it is necessary to detect or observe the state of the high-voltage connector inside the anti-rotation bracket, one end of the sub-cover body can be disassembled first, and observed through the operation port at this sub-cover body. Compared with disassembling the entire cover body, the disassembly difficulty of the cover body can be reduced. Installing the sub-cover bodies in batches and disassembling the cover body can significantly reduce the installation and disassembly difficulty of the cover body, avoid interference between the two ends of the cover body during the disassembly and installation process, effectively prevent damage to the cover body during the disassembly and installation process, and effectively extend the service life of the cover body; moreover, the cover body can be disassembled and assembled repeatedly, which can reduce costs.

[0008] In an alternative embodiment, the base is in a stepped shape, the shape of the sub-cover body is adapted to the shape of the top surface of the base, and the rotating ends of adjacent sub-cover bodies are arranged at the intersection of the vertical plane and the horizontal plane of the stepped structure of the base.

[0009] Beneficial effects: Multiple separate stepped anti-rotation brackets are integrated into one body, which saves more space compared with being separately arranged. One high-voltage connector is inserted into each vertical section. The rotating ends of adjacent sub-cover bodies are arranged at the intersection of the vertical plane and the horizontal plane of the stepped structure of the base. The rotating ends are located at the intersection. When installing or disassembling one of the sub-cover plates, the sub-cover body can rotate around the intersection, which is convenient for the installation and disassembly of the sub-cover body, can avoid interference between the sub-cover bodies, and is convenient for the installation and disassembly of the anti-rotation bracket with a special-shaped structure.

[0010] In an alternative embodiment, it further includes a rotating connection assembly, and both sides of the rotating connection assembly are respectively connected to the adjacent ends of adjacent sub-cover bodies.

[0011] Beneficial effects: By connecting adjacent sub-cover bodies through the rotating connection assembly, the rotating connection assembly can rotate repeatedly without being damaged, the sub-cover bodies can be disassembled and assembled repeatedly, the anti-rotation bracket has a long service life, and the cost of the anti-rotation bracket can be reduced.

[0012] In an alternative embodiment, the rotating connection assembly includes a rotating shaft and a sleeve. The rotating shaft is arranged at the end of one of the adjacent two sub-cover bodies, the sleeve is arranged at the end of the other of the adjacent two sub-cover bodies, and the rotating shaft is rotatably inserted into the sleeve.

[0013] Beneficial effect: the rotating shaft and the sleeve are rotatably matched, and the matching structure is simple and reliable.

[0014] In an optional embodiment, a middle area in the width direction of the vertical wall of the sub-cover body provided with the sleeve is provided with an escape opening, the sleeve is provided on the vertical wall of the sub-cover body on both sides of the escape opening, and both ends of the rotating shaft are respectively inserted into the sleeves on both sides thereof.

[0015] In an optional embodiment, the sleeve is provided with a through opening which passes through the axial direction thereof, the rotating shaft is suitable for being inserted into the sleeve through the through opening, and the opening width of the through opening is smaller than the diameter of the rotating shaft.

[0016] Beneficial effect: This arrangement facilitates the insertion of the rotating shaft into the sleeve through the through-hole, and also facilitates the removal of the rotating shaft from the sleeve. The opening width of the through-hole is smaller than the diameter of the rotating shaft, and the material of the sub-cover body is plastic material. When installing the rotating shaft, the rotating shaft squeezes through the through-hole to enter the interior of the sleeve, and the sleeve wraps the rotating shaft and the opening width of the through-hole is smaller than the diameter of the rotating shaft, thereby preventing the rotating shaft from falling out of the sleeve.

[0017] In an optional implementation, the diameter of the rotating shaft is d, the opening width of the through port is w, and 0.5d≤w≤0.75d.

[0018] Beneficial effects: 0.5d≤w, such a setting can prevent the width of the through opening from being too small, making it convenient to install the rotating shaft; w≤0.75d, such a setting can prevent the width of the through opening from being too large, and can effectively prevent the rotating shaft from falling out of the sleeve.

[0019] In an optional embodiment, adjacent ends of adjacent sub-cover bodies are integrally connected, and the wall thickness of the connecting area of ​​adjacent sub-cover bodies is smaller than the wall thickness of other parts of the sub-cover bodies.

[0020] In an optional embodiment, support columns are provided on the step surfaces of the base at adjacent ends of the sub-cover bodies, and positioning portions are provided on the sub-cover bodies, and the positioning portions cooperate with the support columns to position the middle portion of the cover body on the base.

[0021] Beneficial effects: The positioning part cooperates with the support column to position the middle part of the cover body on the base, so that the cover body is stably maintained on the base. For the anti-rotation bracket with a special-shaped structure, the cover body has good stability after installation and good protection effect.

[0022] In a second aspect, the present invention further provides a battery pack, comprising:

[0023] The anti-rotation bracket of the above embodiment;

[0024] A high voltage connector is inserted into the base through the plug interface;

[0025] The copper bar is inserted into the base through the inlet and outlet. The battery pack includes an anti-rotation bracket, which has the same technical effect as the anti-rotation bracket and will not be elaborated here. Description of the Drawings

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 Schematic diagram of an anti-rotation bracket according to an embodiment of the present invention;

[0028] Figure 2 is Figure 1 Partial enlarged schematic diagram of A in

[0029] Figure 3 Schematic diagram of another anti-rotation bracket according to an embodiment of the present invention;

[0030] Figure 4 Schematic diagram of another anti-rotation bracket according to an embodiment of the present invention in a state where a sub-cover is opened.

[0031] Description of the reference numerals:

[0032] 1. Base; 11. Buckling part; 12. Inlet and outlet; 13. Support column; 2. Cover body; 21. Sub-cover body; 211. Clamping part; 212. Positioning part; 213. Protection plate; 22. Rotating connection assembly; 221. Rotating shaft; 222. Sleeve; 2221. Through hole; 23. Connecting area. Specific Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0034] Both the base 1 and the cover body 2 of the anti-rotation bracket in the related art are made of plastic materials, and their materials are relatively brittle. The cover body 2 and the base 1 are fixed by snap-fit, and the buckling parts 11 are located at opposite ends of the cover body 2. When the cover body 2 has a large width or the cover body 2 has a special-shaped structure, during the installation and disassembly process, the buckling positions at both ends of the cover body 2 are likely to affect and interfere with each other, causing the cover body 2 to be damaged and resulting in a high product rejection rate.

[0035] The following will describe embodiments of the present invention in conjunction with Figures 1 to 4 .

[0036] According to an embodiment of the present invention, on the one hand, a rotation-proof bracket is provided, which includes a base 1 and a cover body 2. Among them, engaging portions 11 are provided at opposite ends of the base 1, an operation opening is provided at the top of the base 1, an insertion opening and an inlet / outlet 12 are provided on the base 1; the cover body 2 includes at least two sub-cover bodies 21 connected in sequence, the adjacent ends of adjacent sub-cover bodies 21 are rotatably connected, and engaging portions 211 are provided at the outer ends of the sub-cover bodies 21 at both ends of the arrangement direction of all the sub-cover bodies 21. The sub-cover bodies 21 are covered on the operation opening, and the engaging portions 211 are in snap-fit connection with the engaging portions 11.

[0037] For the rotation-proof bracket with this structure, the high-voltage connector is inserted into the base 1 through the insertion opening, the copper busbar is inserted into the base 1 through the inlet / outlet 12. After the high-voltage connector is connected to the copper busbar, the cover body 2 is buckled on the base 1 to block the operation opening at the top of the base 1. The rotation-proof bracket designs the overall-structured cover body 2 in the prior art into multiple rotatably connected sub-cover bodies 21. When installing the cover body 2, first install the sub-cover body 21 at one end, and rotate the remaining sub-cover bodies 21 away from the base 1 to avoid installation interference. Then, install the remaining sub-cover bodies 21 in sequence until all the sub-cover bodies 21 are covered on the base 1. The engaging portions 211 at the outer ends of the sub-cover bodies 21 at both ends are snap-fitted on the engaging portions 11 of the base 1 to fix the cover body 2 as a whole on the base 1. When an abnormality occurs and it is necessary to detect or observe the state of the high-voltage connector inside the rotation-proof bracket, one end of the sub-cover body 21 can be disassembled first, and observed through the operation opening at this sub-cover body 21. Compared with disassembling the cover body 2 as a whole, the disassembly difficulty of the cover body 2 can be reduced. Installing and disassembling the sub-cover bodies 21 in batches can greatly reduce the installation and disassembly difficulty of the cover body 2, avoid interference between the two ends of the cover body 2 during the disassembly and installation process, effectively prevent damage to the cover body 2 during the disassembly and installation process, and effectively extend the service life of the cover body 2; moreover, the cover body 2 can be disassembled and assembled repeatedly for multiple times, which can reduce costs.

[0038] As Figure 1 , Figure 3 and Figure 4 shown, the base 1 is in a stepped shape, the shape of the sub-cover body 21 is adapted to the shape of the top surface of the base 1, and the rotating ends of adjacent sub-cover bodies 21 are arranged at the intersection of the vertical surface and the horizontal surface of the stepped structure of the base 1. The rotation-proof bracket is installed in the cavity of the lower housing of the battery pack, and its installation position and installation space are limited. The rotation-proof bracket is designed in a stepped shape to integrate multiple individual rotation-proof brackets into one, as Figure 3As shown, each individual anti-rotation bracket is stepped. The individual anti-rotation bracket includes a vertical section and a horizontal section. Multiple individual stepped anti-rotation brackets are integrated into one body, which saves more space compared to a split setting. A high-voltage connector is inserted into each vertical section. The rotating ends of adjacent sub-cover bodies 21 are provided at the intersection of the vertical plane and the horizontal plane of the stepped structure of the base 1. The rotating ends are located at the intersection. When installing or disassembling one of the sub-cover plates, the sub-cover body 21 can rotate around the intersection, which facilitates the installation and disassembly of the sub-cover body 21, can avoid interference between the sub-cover bodies 21, and facilitates the installation and disassembly of the anti-rotation bracket with a special-shaped structure.

[0039] In some embodiments, as Figure 1 and Figure 2 shown, the anti-rotation bracket further includes a rotating connection assembly 22. The two sides of the rotating connection assembly 22 are respectively connected to the adjacent ends of the adjacent sub-cover bodies 21. The adjacent sub-cover bodies 21 are connected through the rotating connection assembly 22. The rotating connection assembly 22 can rotate repeatedly without being damaged, and the sub-cover body 21 can be disassembled and assembled repeatedly. The anti-rotation bracket has a long service life and can reduce the cost of the anti-rotation bracket.

[0040] For example, in some embodiments, as Figure 2 shown, the rotating connection assembly 22 includes a rotating shaft 221 and a sleeve 222. The rotating shaft 221 is provided at the end of one of the adjacent two sub-cover bodies 21, and the sleeve 222 is provided at the end of the other of the adjacent two sub-cover bodies 21. The rotating shaft 221 is rotatably inserted into the sleeve 222. The rotating shaft 221 is circumferentially fixed on the sub-cover body 21, and the sleeve 222 is fixed on the sub-cover body 21. The rotating shaft 221 rotates around the sleeve 222 to drive the sub-cover body 21 to rotate, or the sub-cover body 21 provided with the sleeve 222 can also be rotated, and the sleeve 222 rotates around the rotating shaft 221 to drive the sub-cover body 21 to rotate; the rotating shaft 221 and the sleeve 222 are in rotational cooperation, and the cooperation structure is simple and reliable.

[0041] As Figure 1 and Figure 2 shown, a relief opening is provided in the middle region in the width direction of the vertical wall of the sub-cover body 21 provided with the sleeve 222. The sleeve 222 is provided on the vertical walls of the sub-cover body 21 on both sides of the relief opening. The two ends of the rotating shaft 221 are respectively inserted into the sleeves 222 on both sides thereof. The relief opening is for inserting a copper bar, and corresponding inlets and outlets 12 are provided on the base 1 inside the relief opening. The copper bar is inserted into the base 1 through the relief opening and the inlets and outlets 12. The two ends of the rotating shaft 221 are inserted into the sleeves 222 on both sides to stably hold the rotating shaft 221 on the sleeve 222.

[0042] In this embodiment, a connecting block is formed by extending the end of the sub-cover body 21 provided with the rotating shaft 221. The rotating shaft 221 is integrally formed on the connecting block, and the two ends of the rotating shaft 221 protrude from the connecting block to form connecting ends, and the connecting ends are inserted into the sleeve 222.

[0043] like Figure 2 As shown, the sleeve 222 is provided with a through hole 2221 that runs through the axial direction thereof, and the rotating shaft 221 is suitable for being inserted into the sleeve 222 through the through hole 2221, and the opening width of the through hole 2221 is smaller than the diameter of the rotating shaft 221. This arrangement facilitates the insertion of the rotating shaft 221 into the sleeve 222 through the through hole 2221, and also facilitates the removal of the rotating shaft 221 from the sleeve 222. The opening width of the through hole 2221 is smaller than the diameter of the rotating shaft 221, and the material of the sub-cover body 21 is a plastic material. When the rotating shaft 221 is installed, the rotating shaft 221 squeezes through the through hole 2221 to enter the interior of the sleeve 222, and the sleeve 222 wraps the rotating shaft 221 and the opening width of the through hole 2221 is smaller than the diameter of the rotating shaft 221, so as to prevent the rotating shaft 221 from slipping out of the sleeve 222.

[0044] In some optional embodiments, such as Figure 2 As shown, the diameter of the rotating shaft 221 is d, the opening width of the through hole 2221 is w, and 0.5d≤w≤0.75d. 0.5d≤w, such a setting can prevent the width of the through hole 2221 from being too small, and facilitate the installation of the rotating shaft 221; w≤0.75d, such a setting can prevent the width of the through hole 2221 from being too large, and can effectively prevent the rotating shaft 221 from slipping out of the sleeve 222.

[0045] like Figures 1 to 2 As shown, in some embodiments, the cover body 2 includes two sub-cover bodies 21, such as Figure 3 As shown, the base 1 includes two step structures shown in the dotted frame area. Among them, the upper step structure includes two horizontal surfaces and one vertical surface, and the lower step structure includes two vertical surfaces and one horizontal surface, and the vertical surface of the lower step structure connects to the horizontal surface of the lower side of the upper step structure. Correspondingly, the upper sub-cover body 21 includes two horizontally arranged first horizontal wall bodies and a vertically arranged first vertical wall body, the first horizontal wall body covers the two horizontal surfaces of the upper step structure, and the first vertical wall body covers the vertical surface of the upper step structure; the lower sub-cover body 21 includes two vertically arranged second vertical wall bodies and a horizontally arranged second horizontal wall body, the two second vertical wall bodies cover the two vertical surfaces of the lower step structure, and the second horizontal wall body covers the horizontal surface of the lower step structure.

[0046] In some embodiments, the rotating shaft 221 is arranged at the outer end of the first horizontal wall on the lower side of the upper sub-cover body 21, and the rotating shaft 221 is arranged at the top of the second vertical wall on the upper side of the lower sub-cover body 21. A clamping portion 211 is arranged on the end of the first horizontal wall on the upper side of the upper sub-cover body 21 and the second horizontal wall of the lower sub-cover body 21, and a buckling portion 11 is arranged at a corresponding position of the base 1.

[0047] like Figure 1 andFigure 2 As shown, in some embodiments, support columns 13 are provided on the step surfaces of the base 1 at the adjacent ends of the adjacent sub-cover bodies 21. Positioning portions 212 are provided on the sub-cover bodies 21. The positioning portions 212 cooperate with the support columns 13 to position the middle part of the cover body 2 on the base 1, so that the cover body 2 is stably held on the base 1. For the anti-rotation bracket with a special-shaped structure, the cover body 2 has good stability and good protection effect after installation.

[0048] In some alternative embodiments, hooks are provided on the inner wall surface of the second vertical wall body at the upper part of the lower sub-cover body 21. The hooks are snap-connected to the tops of the support columns 13 to position the middle part of the cover body 2 on the base 1. The positioning structure is simple and reliable.

[0049] As Figure 1 and Figure 4 shown, support columns 13 are provided at both ends in the length direction and both ends in the width direction of each horizontal plane of the base 1. An inlet and outlet 12 is formed between the support columns 13. The horizontal wall body of the sub-cover body 21 abuts against the tops of the support columns 13. A protection plate 213 is provided on the side surface of the sub-cover body 21. After the sub-cover body 21 is buckled on the base 1, the protection plate 213 shields the inlet and outlet 12. The corresponding protection plate 213 can be removed according to the installation position requirements of the copper bars of different products for the copper bars to pass through, and the protection plates 213 at other positions are retained on the sub-cover body 21 to play a protective role for the high-voltage connection structure inside the anti-rotation structure.

[0050] As Figure 1 shown, the insertion port is located at the left end face of the base 1. One of the high-voltage connectors is inserted into the vertical section of the upper step structure ( Figure 1 the vertical section at the top), and the other high-voltage connector is inserted into the vertical section of the lower step structure ( Figure 1 the vertical section in the middle). When it is necessary to detect or observe the state of the high-voltage connector inside the upper sub-cover body 21, the upper sub-cover body 21 is disassembled; when it is necessary to detect or observe the state of the high-voltage connector inside the lower cover body 2, the lower sub-cover body 21 is disassembled. For the base 1 with a special-shaped structure, the disassembly of the cover body 2 in a split manner can reduce the disassembly difficulty and prevent damage to the cover body 2.

[0051] In some embodiments, the protection plate 213 is integrally formed on the sub-cover body 21 through a connecting column. When a certain protection plate 213 needs to be removed, the connecting column at that place can be broken to remove the protection plate 213.

[0052] As Figure 3 and Figure 4As shown, in other embodiments, the adjacent ends of the adjacent sub-cover bodies 21 are integrally connected, and the wall thickness of the connection area 23 of the adjacent sub-cover bodies 21 is smaller than the wall thickness of other parts of the sub-cover body 21. Such a setting can enable the adjacent sub-cover bodies 21 to form a rotational connection through the thin-wall structure, so that the sub-cover body 21 can rotate, and the sub-cover body 21 can be installed and disassembled in batches, which can greatly reduce the installation and disassembly difficulty of the cover body 2, avoid the interference between the two ends of the cover body 2 during the disassembly and assembly process, effectively prevent the damage of the cover body 2 during the disassembly and assembly process, and effectively extend the service life of the cover body 2.

[0053] In some embodiments, the wall thickness of the connection area 23 of the sub-cover body 21 is 0.2 mm, and the wall thickness of other areas of the sub-cover body 21 is 1.2 mm.

[0054] According to an embodiment of the present invention, on the other hand, a battery pack is further provided, including the above-mentioned anti-rotation bracket, high-voltage connector and copper busbar. Among them, the high-voltage connector is inserted into the base 1 through the insertion port, and the copper busbar is inserted into the base 1 through the inlet and outlet 12.

[0055] For the battery pack with such a structure, the cover body 2 of the anti-rotation bracket therein can be installed and disassembled in batches, which can greatly reduce the installation and disassembly difficulty of the cover body 2, avoid the interference between the two ends of the cover body 2 during the disassembly and assembly process, effectively prevent the damage of the cover body 2 during the disassembly and assembly process, and effectively extend the service life of the cover body 2; moreover, the cover body 2 can be disassembled and assembled repeatedly for many times, which can reduce the cost.

[0056] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An anti-rotation bracket, characterized in that: include: The base has buckling parts at two opposite ends, an operating port at the top of the base, and a plug port and an inlet and outlet on the base; The cover body includes at least two sub-cover bodies connected in sequence, the adjacent ends of the adjacent sub-cover bodies are rotatably connected, the outer ends of the sub-cover bodies at both ends of the arrangement direction of all the sub-cover bodies are provided with snap-fitting parts, the sub-cover bodies are covered on the operating port, and the snap-fitting parts are snap-fitted with the buckle parts.

2. The anti-rotation bracket according to claim 1, characterized in that: The base is stepped, the shape of the sub-cover body matches the shape of the top surface of the base, and the rotating end of the adjacent sub-cover body is arranged at the intersection of the vertical surface and the horizontal surface of the stepped structure of the base.

3. The anti-rotation bracket according to claim 2, characterized in that: It also includes a rotating connection component, and two sides of the rotating connection component are respectively connected to adjacent ends of adjacent sub-cover bodies.

4. The anti-rotation bracket according to claim 3, characterized in that: The rotating connection assembly comprises a rotating shaft and a sleeve, wherein the rotating shaft is arranged at the end of one of the two adjacent sub-cover bodies, and the sleeve is arranged at the end of the other of the two adjacent sub-cover bodies, and the rotating shaft is rotatably inserted in the sleeve.

5. The anti-rotation bracket according to claim 4, characterized in that: A middle area in the width direction of the vertical wall of the sub-cover body provided with the sleeve is provided with an escape opening, the sleeve is arranged on the vertical wall of the sub-cover body on both sides of the escape opening, and both ends of the rotating shaft are respectively inserted into the sleeves on both sides thereof.

6. The anti-rotation bracket according to claim 5, characterized in that: The sleeve is provided with a through opening which runs through the sleeve in its axial direction, and the rotating shaft is suitable for being inserted into the sleeve through the through opening, and the opening width of the through opening is smaller than the diameter of the rotating shaft.

7. The anti-rotation bracket according to claim 6, characterized in that: The diameter of the rotating shaft is d, the opening width of the through port is w, and 0.5d≤w≤0.75d.

8. The anti-rotation bracket according to claim 2, characterized in that: Adjacent ends of adjacent sub-cover bodies are integrally connected, and the wall thickness of the connecting area of ​​adjacent sub-cover bodies is smaller than the wall thickness of other parts of the sub-cover bodies.

9. The anti-rotation bracket according to any one of claims 2 to 8, characterized in that: A support column is provided on the step surface of the base at the adjacent end of the adjacent sub-cover body, and a positioning part is provided on the sub-cover body. The positioning part cooperates with the support column to position the middle part of the cover body on the base.

10. A battery pack, characterized in that: include: The anti-rotation bracket according to any one of claims 1 to 9; A high voltage connector is inserted into the base through the plug interface; The copper busbar is inserted into the base through the inlet and outlet.

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