Lithium battery module with steel strap binding structure

Abstract

The utility model discloses a lithium battery module of steel band binding structure, including a plurality of single cell arrangement into lithium battery module, is equipped with the aluminum end plate at lithium battery module both ends, and the steel band constraint of snaring around lithium battery module and aluminum end plate four weeks. The utility model discloses only sets up the aluminum plate at lithium battery module both ends, and closes fastening with steel band, and simple structure assembles fast, and the weight is light, and the heat dissipation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly, and in particular to a lithium battery module with a steel strip binding structure. Background Technology

[0002] The lithium battery modules are arranged neatly according to their capacity, then secured together with left and right side panels and front and rear end panels to form a whole, which is then placed in the battery box. Generally, the side and end panels are made of reinforcing steel, which is strong but heavy. Additionally, epoxy resin partitions are needed between the side and end panels and the lithium battery modules, resulting in a large overall battery weight and poor heat dissipation. Furthermore, securing the side and end panels around the lithium battery modules is labor-intensive and time-consuming, and assembly efficiency needs improvement. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a lithium battery module with a steel strip binding structure. Aluminum plates are only set at both ends of the lithium battery module, and they are fastened together with steel strips. The structure is simple, the assembly is quick, the weight is reduced, and the heat dissipation effect is good.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A lithium battery module with a steel strip binding structure includes several individual cells arranged into a lithium battery module. Aluminum end plates are provided at both ends of the lithium battery module, and a steel strip is wrapped around the lithium battery module and the aluminum end plates for binding.

[0005] A further improvement is to use two steel strips, which are respectively secured at the upper and lower four corners of the lithium battery module and the aluminum end plate. This ensures a secure constraint.

[0006] A further improvement is to wrap heat-shrink tubing around the steel strip that contacts the lithium battery module. This provides better insulation.

[0007] A further improvement is to cover the lithium battery module with Mylar sheets between the lithium battery module and the aluminum end plate, and on the top surface of the lithium battery module. Mylar sheets are thin, flexible, provide effective insulation, and protect the lithium battery module from wear.

[0008] A further improvement is that the aluminum end plate is integrally die-cast from a base plate, the grid ribs on the base plate, and the side columns on both sides, ensuring strength.

[0009] A further improvement is that the corners of the two side posts of the aluminum end plate are curved. This prevents bumps and makes it easier to attach the steel straps for securing. Beneficial effects

[0010] This structure first presses the lithium battery module and its aluminum end plates at both ends together, and then fits it with steel straps to close and secure it. The operation is simple and quick, improving work efficiency. In addition, the aluminum end plates are of low quality, and there are no side plates on both sides, so the overall weight of the product is reduced. At the same time, the absence of side plates on both sides also allows for good heat dissipation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0012] like Figure 1 As shown, this utility model includes several individual batteries arranged to form a lithium battery module 1. Aluminum end plates 2 are provided at both ends of the lithium battery module 1. Mylar sheets 5 are provided between the lithium battery module 1 and the aluminum end plates 2 as partitions. Steel strips 3 are wrapped around the lithium battery module and the aluminum end plates to constrain them. There are two steel strips 3, which are respectively constrained at the upper four corners and the lower four corners of the lithium battery module and the aluminum end plates. Heat shrink tubing 4 is wrapped on the steel strips in contact with the lithium battery module. The aluminum end plates 2 are integrally die-cast from a base plate 21, a grid rib 22 on the base plate, and side posts 23 on both sides. They are lightweight and have high strength. The corners of the side posts 23 on both sides of the aluminum end plates are arc surfaces, which facilitates the installation of the steel strips.

[0013] Mylar sheets 5 are laid on the top surface and upper sides of the lithium battery module 1, and Mylar sheets are also laid on the bottom of the battery box. This way, the top and bottom surfaces of the lithium battery module will not be worn after it is installed in the battery box, and it can also be insulated.

[0014] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A lithium battery module with a steel strip binding structure, comprising several individual cells arranged to form a lithium battery module (1), characterized in that: Aluminum end plates (2) are provided at both ends of the lithium battery module (1). Steel strips (3) are wrapped around the lithium battery module and the aluminum end plates to constrain them. Heat shrink tubing (4) is wrapped on the steel strip that contacts the lithium battery module. Mylar sheet (5) is covered between the lithium battery module (1) and the aluminum end plates (2) and on the top surface of the lithium battery module (1).

2. The lithium battery module with steel strip restraint structure according to claim 1, characterized in that: There are two steel strips (3), which are respectively constrained at the upper and lower corners of the lithium battery module and the aluminum end plate.

3. The lithium battery module with steel strip binding structure according to claim 1, characterized in that: The aluminum end plate (2) is integrally die-cast from the base plate (21), the grid ribs (22) on the base plate, and the side columns (23) on both sides.

4. The lithium battery module with steel strip binding structure according to claim 3, characterized in that: The corners of the two side posts (23) of the aluminum end plate are curved.

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