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A conductive connection structure for a new energy battery module

A conductive connection structure and battery module technology, applied to battery pack parts, structural parts, circuits, etc., can solve problems affecting battery welding quality, inconsistent peeling force of foil layers, affecting soft row welding, etc., to solve welding failure The effect of reducing the risk of leakage, facilitating later maintenance, and reducing the risk of leakage

Inactive Publication Date: 2018-12-18
杨亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relative complexity of the soft row process, the high cost of parts, and the poor product consistency during the hardening process of the metal sheet, when there is oil or impurities between the foil layers, there will be inconsistent peeling force of the foil layer in the hardened area, which will affect the soft row welding. , there is welding explosion, welding is not firm, etc., affecting the welding quality of battery groups

Method used

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  • A conductive connection structure for a new energy battery module
  • A conductive connection structure for a new energy battery module
  • A conductive connection structure for a new energy battery module

Examples

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Effect test

Embodiment 1

[0028] see Figure 1 to Figure 8 , the present invention provides a technical solution: a conductive connection structure for a new energy battery module, including a hard row 1 and a hard row 2 3 for connecting the positive and negative electrodes of the battery 4, the hard row 1 and the hard row 1 Conductive metal sheets 2 are connected between the two hard rows 3 described above. Hard row 1, conductive metal sheet 2 and hard row 2 3 can be a fully formed part, or three parts, through a process, such as welding, to form an integral part, or three independent parts, First, hard row one 1 and hard row two 3 are connected to the battery poles, and then the first conductive metal sheet 2 is welded between hard row one 1 and hard row two 3 in the module.

[0029] Furthermore, the conductive metal sheet 2 is a layer of metal sheets or no less than one layer of superimposed metal sheets, which is characterized in that the flow area is smaller than that of the hard row 1 and the ha...

Embodiment 2

[0032] see Figure 4 to Figure 8 , on the basis of Example 1, the hard row 1 and hard row 2 3 of this product can be adjusted to match the long plate shape of the battery pack according to the battery pack, and the long plate shaped hard row 1 and hard row 2 3 respectively correspond to Multiple positive or negative poles of the battery pack are connected so as to facilitate the conductive connection between the battery packs.

[0033] Further, the surfaces of hard row one 1 and hard row two 3 can be expanded and connected by connecting other conductive metal sheets 2 to form a connection structure that can be used for connecting multiple positive or negative poles of the battery pack, such as Figure 5 and Figure 6 .

[0034] The present invention is not limited to a specific conductive material; not limited to the composite position of the deformable curved section of the conductive metal foil layer or sheet and the bottom conductive plate; not limited to the number of de...

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Abstract

The invention discloses a conductive connection structure for a new energy battery module, comprising a hard row one and a hard row two for connecting positive and negative electrodes of the battery,wherein a conductive metal sheet is connected between the hard row one and the hard row two. As that conductive metal sheet is arrange, the conductive metal sheet has a certain size stretching function, and can adjust the size tolerance of the cell itself, and the size change caused by thermal expansion, cold shrinkage and expansion of the cell, thereby reducing the shear stress of the hard row one and the hard row two pair of the cell pole after the cells are grouped, and reducing the risk of liquid leakage of the cell. The hard row one and hard row two are in good contact with the electrodepillar, which effectively solves the risk of electrode pillar welding failure. Through the structural characteristics of the conductive metal sheet, the conductive overcurrent capacity can be limitedin a certain range. When the current exceeds the threshold value, the conductive metal sheet structure fuses, that is, the power supply is cut off, which plays a ''fuse'' function, and effectively improves the safety of the battery module.

Description

technical field [0001] The invention relates to the technical field of electrical connection of new energy battery modules, in particular to a conductive connection structure for new energy battery modules. Background technique [0002] The battery module is composed of multiple batteries connected in a certain series-parallel relationship. During the charge and discharge process, different batteries are connected by metal conductors to transmit current. Usually, the metal conductors and the positive and negative poles of the batteries are welded. The metal conductor is commonly known as Busbar, and the material is generally copper, aluminum or aluminum alloy, nickel, steel, etc. According to the hardness state of Busbar, it is usually divided into hard Busbar (hereinafter referred to as hard busbar) and soft Busbar (hereinafter referred to as soft busbar). [0003] The hard row is generally made by mechanical washing or stamping of the plate. This process is mature and th...

Claims

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Application Information

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IPC IPC(8): H01M2/26H01M50/531
CPCH01M50/531Y02E60/10
Inventor 杨亮
Owner 杨亮