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Connecting piece of battery module

A battery module and connector technology, which is applied to battery pack components, electrical components, circuits, etc., can solve the problems of difficult quality assurance, difficulty in realization, insufficient cross-sectional area of ​​metal plates to provide high-current discharge connecting pieces, safety accidents, etc. , to achieve the effect of low production cost, simple and practical structure

Inactive Publication Date: 2014-09-10
SUZHOU SHENGDE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this method is feasible for small-capacity battery modules with few connections, but for large-capacity energy storage and supply batteries, it will not be able to provide high-current discharge due to the insufficient cross-sectional area of ​​the metal plate and cause safety accidents due to the heating of the connecting piece.
However, if a thicker metal sheet is used, due to the limitation of the welding process, it is very difficult to realize and the quality is difficult to guarantee

Method used

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  • Connecting piece of battery module
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  • Connecting piece of battery module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 , image 3 , Figure 4 with Image 6 As shown, a connector for a battery module includes a first metal plate 1 and a second metal plate 2, the first metal plate 1 is provided with a plurality of through holes, and the second metal plate 2 is provided with a plurality of holes corresponding to the through holes. Corresponding special-shaped through-hole;

[0035] After the through-holes and special-shaped through-holes are aligned accordingly, the first metal plate 1 and the second metal plate 2 are fixedly connected to form a double-layer composite plate; The connector of the double-layer metal plate combined with the second metal plate 2, the first metal plate 1 and the second metal plate 2 carry the input and output of large current at the same time, the special-shaped through hole of the second metal plate 2 and the battery 31 Welding and fixing, connecting multiple battery cells 31 to form a battery module 3, the through-hole of the...

Embodiment 2

[0046] Such as Figure 5 As shown, the rest are the same as in Embodiment 1, the difference is that the shape of the through hole is a U-shaped hole 13, leaving an available space for the welding of the I-shaped hole 22 and the battery core 31, and no special description is made here. The limitations also belong to the protection scope of the present invention. Its structural features and mechanism of action are also the same as those in Example 1, and will not be repeated here.

Embodiment 3

[0048] Such as Figure 7As shown, the rest are the same as in Embodiment 1, the difference is that the shape of the special-shaped through hole is an E-shaped hole 23, which prevents the weld from being welded due to excessive pressure at the welding point, and also belongs to the protection scope of the present invention. Its structural features and mechanism of action are also the same as those in Example 1, and will not be repeated here.

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Abstract

The invention discloses a connecting piece of a battery module, which comprises a first metal plate and a second metal plate, several through holes are arranged on the first metal plate, several heterologous through holes corresponding with the through holes are arranged on the second metal plate, the through holes and the heterologous through holes are correspondingly aligned, the first metal plate and the second metal plate are fixedly connected to form a double layer composite sheet material; the traditional connecting piece by using a single block sheet metal is changed to the double layer sheet metal connecting piece which is composited by the first metal plate and the second metal plate, the heterologous through holes of the second metal plate is weld and fixed with an electrical core, several electrical cores are connected to a cell module group, the through holes of the first metal plate provides the available space for welding the heterologous through holes and the electrical core, the connecting piece can adjust the thickness of the first metal plate according to the electrical cores with different sizes and size of the momentary discharge rate, so that total capacity and monomer electrical core capacity of the battery module are not restricted, and the momentary discharge rate is not restricted by a connection material.

Description

technical field [0001] The invention relates to the field of connection of multiple battery modules, in particular to a connecting piece of a battery module. Background technique [0002] With the gradual reduction of non-renewable energy sources and the intensification of global pollution caused by traditional vehicle emissions, renewable and non-polluting green energy sources are getting more and more attention, and electric energy is one of them. As the most commonly used important carrier for storing electric energy, battery modules are used in all aspects. However, due to technical limitations and safety considerations, the capacity of a single cell cannot be made too large. It is an effective solution to connect many small-capacity cells in a certain way to form a large-capacity battery mold. [0003] However, the traditional method of connecting batteries is to use thin metal sheets to connect several or dozens of batteries together by welding to form a small module....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26B32B15/01B32B3/24H01M50/403H01M50/503H01M50/516H01M50/528
CPCB32B3/10B32B15/01H01M50/531Y02E60/10
Inventor 吴根成
Owner SUZHOU SHENGDE ELECTRONICS
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