Fixing structure of power battery module and battery box body

Abstract

The utility model relates to the technical field of battery modules, and discloses a fixing structure of a power battery module and a battery box body, which comprises a mounting base, a plurality of assembling grooves are arranged on the upper surface of the mounting base, battery modules are fixedly connected in the assembling grooves, the outer surfaces of the battery modules are fixedly connected with a bracket, and the bracket is fixedly connected with the battery box body. The top of the support is fixedly connected with a fastening assembly. According to the utility model, the fastening assembly is arranged, the bracket and the end plate are connected through the screw rod, and the module pressing plate is connected with the end plate through the B screw, so that the battery module, the module pressing plate and the end plate are mutually restrained and fixed into a whole, and after the battery module and the battery box body are mounted, the end plate is fixed on the box body in the X direction of the battery module; the battery modules and the end plates are clamped and fixed, the end plates are fixed to the box body in the Z direction and the Y direction, the module pressing plates are fixed to the end plates while being fixed to the supports in the single modules, and the module pressing plates can effectively prevent the battery modules from moving in the Z direction and the Y direction when the battery modules are impacted.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a fixing structure for a power battery module and a battery box body. Background Technique

[0002] A power battery module, also known as a battery pack, is composed of multiple battery cells (or battery units). These battery cells are usually connected in series, parallel or in a hybrid connection. The power battery module plays a crucial role in electric vehicles, and its performance directly affects aspects such as the cruising range, power performance and safety of electric vehicles.

[0003] At present, the fixing method of the module in the battery box is end plate fixing at both ends. This fixing method only provides a clamping force in the X direction, and there is no relative constraint between the battery module and the battery box body. For a longer module, such as when the total length of the module exceeds 500 mm, during the vibration of the whole vehicle, after being fixed at both ends, there may still be a probability of shaking in the Y direction and Z direction at the middle position of the module. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a fixing structure for a power battery module and a battery box body.

[0005] The utility model is realized by the following technical solutions: A fixing structure for a power battery module and a battery box body includes an installation base. A plurality of assembly grooves are formed on the upper surface of the installation base. A battery module is fixedly connected inside the assembly grooves. A bracket is fixedly connected to the outer surface of the battery module. A fastening component is fixedly connected to the top of the bracket;

[0006] The fastening component includes end plates. Screw holes are formed on the upper surfaces of the end plates. Screws are arranged inside the screw holes. The bracket is connected to the end plates through the screws. A preset hole is formed on one side of the end plate.

[0007] Through the above technical solutions, by assembling the screws, the bracket and the end plates are connected. The module pressing plate is connected to the end plates through B screws, so that the battery module, the module pressing plate and the end plates are mutually constrained and fixed as a whole. After the battery module is installed on the battery box body, in the X direction, the end plates are fixed to the box body, and the battery module is clamped and fixed to the end plates. In the Z direction and Y direction, the end plates are fixed to the box body, the module pressing plate is fixed to the bracket in a single module and is also fixed to the end plates at the same time. The module pressing plate can effectively prevent the battery module from moving in the Z direction and Y direction after being impacted by external forces.

[0008] As a further improvement of the above solution, an A screw is inserted into the preset hole. A box body mounting frame is fixedly installed on one side of the end plate through the A screw.

[0009] Through the above technical solution, the end plate is fixedly installed with a box mounting bracket by A screws, which can improve the speed of installing the device with the external box. Personnel only need to tighten the A screws to fix the end plate and the external box.

[0010] As a further improvement of the above solution, a module pressing plate is fixedly installed in the middle of one side of the end plate by B screws, and tie-down holes and kidney-shaped mounting holes are provided on the upper surface of the module pressing plate.

[0011] Through the above technical solution, after the module pressing plate is fixed by B screws, it can effectively prevent the battery module from moving in the Z direction and Y direction after being impacted by an external force, improving the safety protection of the battery module.

[0012] As a further improvement of the above solution, the B screw is arranged inside the kidney-shaped mounting hole, and a connecting column is fixedly connected to the top of the mounting base.

[0013] Through the above technical solution, the connecting column facilitates the disassembly and assembly of the battery module by personnel, and facilitates the subsequent maintenance and replacement of the battery module by personnel.

[0014] As a further improvement of the above solution, a clamping plate is fixedly connected to the outer surface of the bracket, and the connecting column is arranged inside the clamping plate.

[0015] Through the above technical solution, the clamping plate improves the fixing effect on the connecting column and avoids the displacement and shaking of the connecting column.

[0016] As a further improvement of the above solution, a plurality of oval mounting holes are provided at the top of the surface of the box mounting bracket, and a plurality of connecting holes are provided at the bottom of the surface of the box mounting bracket.

[0017] Through the above technical solution, the oval mounting holes and connecting holes provided on the surface of the box mounting bracket can facilitate personnel to fix the box mounting bracket on the box equipment, and the stability during installation can be improved through the oval mounting holes at the top and the connecting holes at the bottom.

[0018] As a further improvement of the above solution, the A screw is arranged inside the connecting hole, and the A screw is adapted to the connecting hole.

[0019] Through the above technical solution, the A screw can support and fix the bracket through the connecting hole, so that the battery module, the module pressing plate and the end plate are mutually constrained and fixed as a whole.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] The utility model connects the bracket and the end plate through a screw by setting a fastening component. The module pressing plate is connected to the end plate through B screws, so that the battery module, the module pressing plate and the end plate are mutually constrained and fixed as a whole. After the battery module is installed on the battery box body, in the X direction of the battery module, the end plate is fixed to the box body, and the battery module and the end plate are clamped and fixed. In the Z direction and the Y direction, the end plate is fixed to the box body, the module pressing plate is fixed to the bracket in a single module and is also fixed to the end plate at the same time. The module pressing plate can effectively prevent the battery module from moving in the Z direction and the Y direction when being impacted. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is a schematic diagram of the structure of the utility model;

[0024] Figure 3 is a schematic diagram of the structure of the utility model;

[0025] Figure 4 is a schematic diagram of the structure of the utility model;

[0026] Figure 5 is a schematic diagram of the structure of the fastening component of the utility model.

[0027] Main Symbol Description:

[0028] Installation base; 2, Assembly groove; 3, Battery module; 4, Bracket; 5, Fastening component; 501, End plate; 502, Screw hole; 503, Screw; 504, Preset hole; 6, A screw; 7, Box body mounting frame; 8, B screw; 9, Module pressing plate; 10, Tie strap hole; 11, Waist-shaped mounting hole; 12, Connecting column; 13, Clamping plate; 14, Oval mounting hole; 15, Connecting hole. Detailed Embodiment

[0029] Next, in combination with the drawings and the detailed embodiment, the utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form a new embodiment. Embodiment

[0030] Please combine Figures 1-5 , a fixing structure of a power battery module and a battery box body in this embodiment includes an installation base 1. A plurality of assembly grooves 2 are formed on the upper surface of the installation base 1. A battery module 3 is fixedly connected inside the assembly groove 2. A bracket 4 is fixedly connected to the outer surface of the battery module 3. A fastening component 5 is fixedly connected to the top of the bracket 4;

[0031] The fastening assembly 5 includes an end plate 501. Screw holes 502 are formed in the upper surface of the end plate 501. A screw rod 503 is arranged inside the screw hole 502. The bracket 4 is connected to the end plate 501 through the screw rod 503. A preset hole 504 is formed in one side of the end plate 501. By assembling the screw rod 503, the bracket 4 and the end plate 501 are connected. The module pressing plate 9 is connected to the end plate 501 through the B screw 8, so that the battery module 3, the module pressing plate 9 and the end plate 501 are constrained and fixed together. After the battery module 3 is installed in the battery box, in the X direction of the battery module 3, the end plate 501 is fixed to the box body, and the battery module 3 and the end plate 501 are clamped and fixed. In the Z direction and the Y direction, the end plate 501 is fixed to the box body. The module pressing plate 9 is fixed to the bracket 4 in a single module and is also fixed to the end plate 501 at the same time. The module pressing plate 9 can effectively prevent the battery module 3 from moving in the Z direction and the Y direction after being impacted by an external force, and can effectively improve the safety and reliability of the long battery module 3 after being fixed in the battery box. The structure of this patent improves the fixing scheme of the long module in the battery box body, improves the reliability of the battery module 3 in the box body, and reduces potential safety hazards.

[0032] An A screw 6 is inserted into the preset hole 504. A box body mounting bracket 7 is fixedly installed on one side of the end plate 501 through the A screw 6. The end plate 501 is fixedly installed with the box body mounting bracket 7 through the A screw 6, which can improve the installation speed of the device with the external box body. Personnel only need to tighten the A screw 6 to fix the end plate 501 and the external box body.

[0033] A module pressing plate 9 is fixedly installed in the middle of one side of the end plate 501 through the B screw 8. Tie holes 10 and waist-shaped mounting holes 11 are formed in the upper surface of the module pressing plate 9. After the module pressing plate 9 is fixed through the B screw 8, it can effectively prevent the battery module 3 from moving in the Z direction and the Y direction after being impacted by an external force, and improve the safety protection of the battery module 3.

[0034] The B screw 8 is arranged inside the waist-shaped mounting hole 11. The top of the mounting base 1 is fixedly connected with an adapter cylinder 12. The adapter cylinder 12 facilitates the disassembly and assembly of the battery module 3 by personnel, and facilitates the subsequent maintenance and replacement of the battery module 3 by personnel.

[0035] A clamping plate 13 is fixedly connected to the outer surface of the bracket 4. The adapter cylinder 12 is arranged inside the clamping plate 13. The clamping plate 13 improves the fixing effect on the adapter cylinder 12 and avoids the displacement and shaking of the adapter cylinder 12.

[0036] On the top surface of the box body mounting bracket 7, a plurality of oval mounting holes 14 are opened, and on the bottom surface of the box body mounting bracket 7, a plurality of connection holes 15 are opened. The oval mounting holes 14 and connection holes 15 opened on the surface of the box body mounting bracket 7 can facilitate the fixation of the box body mounting bracket 7 on the box body equipment by personnel, and the stability during installation can be improved through the oval mounting holes 14 at the top and the connection holes 15 at the bottom.

[0037] A screw 6 is arranged inside the connection hole 15. The A screw 6 is adapted to the connection hole 15. The A screw 6 can support and fix the bracket 4 through the connection hole 15, so that the battery module 3, the module pressing plate 9 and the end plate 501 are constrained and fixed together.

[0038] The implementation principle of a fixed structure of a power battery module and a battery box body in an embodiment of the present application is as follows: Through the assembly screw 503, the bracket 4 and the end plate 501 are connected. The module pressing plate 9 is connected to the end plate 501 through the B screw 8, so that the battery module 3, the module pressing plate 9 and the end plate 501 are constrained and fixed together. After the battery module 3 is installed on the battery box body, in the X direction of the battery module 3, the end plate 501 is fixed to the box body, and the battery module 3 and the end plate 501 are clamped and fixed. In the Z direction and the Y direction, the end plate 501 is fixed to the box body, the module pressing plate 9 is fixed to the bracket 4 in a single module and is also fixed to the end plate 501 at the same time. The module pressing plate 9 can effectively prevent the battery module 3 from moving in the Z direction and the Y direction after being impacted by an external force, and can effectively improve the safety and reliability problems of the long battery module 3 after being fixed in the battery box. Moreover, the end plate 501 is fixedly installed with a box body mounting bracket 7 through the A screw 6, which can improve the installation speed of the device with the external box body. Personnel only need to tighten the A screw 6 to fix the end plate 501 and the external box body. The oval mounting holes 14 and connection holes 15 opened on the surface of the box body mounting bracket 7 can facilitate the fixation of the box body mounting bracket 7 on the box body equipment by personnel, and the stability during installation can be improved through the oval mounting holes 14 at the top and the connection holes 15 at the bottom. The A screw 6 is adapted to the connection hole 15. The A screw 6 can support and fix the bracket 4 through the connection hole 15, so that the battery module 3, the module pressing plate 9 and the end plate 501 are constrained and fixed together. The structure of this patent improves the fixing scheme of the long module in the battery box body, improves the reliability of the battery module 3 in the box body, and reduces potential safety hazards.

[0039] The above-mentioned implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the protection scope required by the present invention.

Claims

1. A fixing structure of a power battery module and a battery box, characterized in that: The mounting base (1) comprises a plurality of assembly grooves (2) formed on the upper surface of the mounting base (1), a battery module (3) being fixedly connected to the interior of the assembly groove (2), a bracket (4) being fixedly connected to the outer surface of the battery module (3), and a fastening assembly (5) being fixedly connected to the top of the bracket (4); The fastening assembly (5) comprises an end plate (501), the upper surface of each end plate (501) is provided with a screw hole (502), a screw rod (503) is arranged inside the screw hole (502), the bracket (4) is connected to the end plate (501) via the screw rod (503), and a preset hole (504) is provided on one side of the end plate (501).

2. A fixing structure of a power battery module and a battery box as claimed in claim 1, characterized in that: An A screw (6) is inserted into the interior of the preset hole (504), and a box mounting frame (7) is fixedly mounted on one side of the end plate (501) via the A screw (6).

3. The fixing structure of a power battery module and a battery box according to claim 1, characterized in that: A module pressing plate (9) is fixedly mounted in the middle of one side of the end plate (501) by means of a B screw (8), and a tie hole (10) and a waist-shaped mounting hole (11) are provided on the upper surface of the module pressing plate (9).

4. A fixing structure of a power battery module and a battery box as claimed in claim 3, characterized in that: The B screw (8) is arranged inside the waist-shaped mounting hole (11), and a connecting column (12) is fixedly connected to the top of the mounting base (1).

5. A fixing structure of a power battery module and a battery box as claimed in claim 4, characterized in that: A clamping plate (13) is fixedly connected to the outer surface of the bracket (4), and the connecting column (12) is arranged inside the clamping plate (13).

6. A fixing structure of a power battery module and a battery box as claimed in claim 2, characterized in that: A plurality of elliptical mounting holes (14) are provided on the top of the surface of the box mounting frame (7), and a plurality of connection holes (15) are provided on the bottom of the surface of the box mounting frame (7).

7. A fixing structure of a power battery module and a battery box as claimed in claim 2, characterized in that: The A screw (6) is arranged inside the connection hole (15), and the A screw (6) and the connection hole (15) are adapted to each other.

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