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Non-welded power battery soft connection wire manufacturing method

A power battery and flexible connecting wire technology, applied in conductive connection, battery pack components, cable/conductor manufacturing, etc., can solve the problems of very high energy and transformer capacity requirements, large space occupation, small resistance value, etc., easy to achieve The effect of automatic operation, fast and convenient manufacturing, and high product yield

Inactive Publication Date: 2018-03-27
东莞市佳超五金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tinned copper braided soft connection is suitable for soft connection of various high-voltage electrical appliances, vacuum appliances, mining explosion-proof switches, automobiles, locomotive battery packs and other related products, using bare copper wire or tinned copper braided wire (stranded wire), It is made by cold pressing, but this kind of braided wire is folded into various shapes and takes up a lot of space, which cannot meet the mass production needs of power battery packs at this stage
The bonding interface of the copper bar soft connection is formed by one-time welding with molecular diffusion welding technology. The product has good quality, strong conductivity, large current capacity, small resistance value, and durability. The heat-shrinkable sleeve is used for insulation, and then the bending operation is performed according to the required shape. This kind of soft connection requires the metal conductor part at the end to be welded by polymer diffusion. Polymer diffusion welding requires a welding current of 80-150A and 2 welding machines. A 215KWH transformer is needed, and the production capacity is 1000-1500PCS per machine per day. Therefore, this process has very high requirements on energy and transformer capacity. For the shortage of power consumption in the south, it will cause troubles in expanding production or mass production. Moreover, the strength of the heat-shrinkable sleeve is very poor at high temperatures due to the decrease in the degree of cross-linking of the polymer during heat shrinkage, which may easily lead to the hidden danger of rupture of the heat-shrinkable sleeve insulation sleeve, and the failure rate of the rupture is between 5% and 10%.
There are obvious deficiencies in the above two soft connections, and they cannot achieve the historical mission of replacing gasoline vehicles with new energy vehicles

Method used

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  • Non-welded power battery soft connection wire manufacturing method
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Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 , figure 2 As shown, the power battery flexible connection wire in this embodiment includes a metal conductor 1 and a plastic insulator 2 co-extruded with the metal conductor 1, and a plurality of bending parts 3 are arranged on the metal conductor 1, and the metal conductor 1 The conductor 1 is a copper metal conductor or an aluminum metal conductor or an iron metal conductor, the thickness of the metal conductor 1 is 0.2-10 mm, and the plastic insulator 2 is a plastic insulating material or a modified rubber or a modified plastic. In this embodiment An aluminum metal conductor is used, and the metal conductor 1 includes a middle part 12 of the same profile and connecting parts 13 arranged at both ends of the middle part 12 , and connecting through holes 14 are arranged on the connecting part 13 .

Embodiment 2

[0033] Such as image 3 As shown, this embodiment is roughly the same as Embodiment 1, the difference is that the metal conductor 1 in this embodiment includes a multi-layer laminated metal foil 10, and the thickness of the metal foil 10 is 0.1mm-0.2mm .

Embodiment 3

[0035] This embodiment is basically the same as the second embodiment, except that the metal conductor 1 in this embodiment is a copper metal conductor.

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Abstract

The invention discloses a non-welded power battery soft connection wire manufacturing method, which has the advantages that the process is simple; the manufacturing is quick and convenient; and a plastic insulating sleeve can be prevented from being broken. The non-welded power battery soft connection wire comprises a metal conductor (1) and a plastic insulator (2) extruded together with the metalconductor (1), wherein multiple bent parts (3) are arranged on the metal conductor (1). The method comprises steps of slitting, continuous electroplating, insulating layer co-extrusion, cutting, bending and edge cutting and hole manufacturing. The method of the invention can be widely applied to the field of power battery packs.

Description

technical field [0001] The invention relates to a method for manufacturing a non-welding power battery flexible connection wire. Background technique [0002] Tinned copper braided soft connection is suitable for soft connection of various high-voltage electrical appliances, vacuum appliances, mining explosion-proof switches, automobiles, locomotive battery packs and other related products, using bare copper wire or tinned copper braided wire (stranded wire), It is made by cold pressing, but this kind of braided wire is folded into various shapes and takes up a lot of space, which cannot meet the mass production needs of power battery packs at this stage. The bonding interface of the copper bar soft connection is formed by one-time welding with molecular diffusion welding technology. The product has good quality, strong conductivity, large current capacity, small resistance value, and durability. The heat-shrinkable sleeve is used for insulation, and then the bending operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/14H01B13/00H01M2/20H01M50/502
CPCH01B13/00H01B13/14H01M50/50Y02E60/10
Inventor 廖勇军
Owner 东莞市佳超五金科技有限公司
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