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Connection method of power battery pack and battery pack produced thereby

A power battery pack and connection method technology, which is applied in the connection of power battery packs and the field of power battery packs, can solve the problems of reduced mileage, complicated manufacturing process, and high cost, and achieves improved contact reliability, convenient arrangement and combination, and energy saving social cost effect

Active Publication Date: 2017-11-07
周伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] During the actual use, the inventor found that: using the existing method to process the power battery pack, the manufacturing process is relatively complicated and the cost is high; the conductivity of the battery pack is not good, the consistency of the battery pack is prone to deterioration, and the mileage of the continuation is reduced

Method used

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  • Connection method of power battery pack and battery pack produced thereby
  • Connection method of power battery pack and battery pack produced thereby
  • Connection method of power battery pack and battery pack produced thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 1~6 As shown, a connection method of a power battery pack, the above-mentioned power battery pack includes several single cells 1, a manifold 3 and a battery bracket, the positive part of the above-mentioned single battery 1 is fixed by a 1# battery bracket 6a, and the above-mentioned single battery 1 The negative part is fixed by the 2# battery holder 6b.

[0050] Such as figure 1 , 6As shown, the above-mentioned manifold 3 is a copper-aluminum composite board, one side of the copper-aluminum composite board is a copper board, and the other side of the copper-aluminum composite board is an aluminum board. The face of the copper plate faces the electrode of the power battery pack, and the face of the aluminum plate faces away from the electrode of the power battery pack. Such as figure 1 , 4 , 5, and 6, specifically: the positive manifold 3a is a copper-aluminum composite plate, the copper plate of the positive manifold 3a faces the positive pole ...

Embodiment 2

[0059] Such as figure 1 , 3 , 4, as an improvement of the power battery pack connection method of the present invention, two-point welding is used between the single battery electrode and the fuse 2, and two-point welding is used between the aluminum plate surface and the fuse 2, Described welding step is as follows:

[0060] a. Weld a point between the fuse and the aluminum plate surface;

[0061] b. Pull the fuse to the battery terminal and weld a point between the fuse and the battery terminal;

[0062] c. Pull the fuse by 1 mm to 2 mm, and weld another point between the fuse and the battery electrode;

[0063] d. Pull the fuse to the aluminum plate and weld a point between the fuse and the aluminum plate;

[0064] e. Pull the fuse by 1mm to 2mm, and weld another point between the fuse and the aluminum plate surface;

[0065] f. Repeat steps b, c, d, and e until all the single cells in the same row are welded;

[0066] g. Pull the fuse to the aluminum panel, and weld...

Embodiment 3

[0072] The power battery pack includes several single cells 1, manifold 3 and battery holders, the positive part of the above-mentioned single cells 1 is fixed by the 1# battery holder 6a, and the negative part of the above-mentioned single cells 1 is fixed by the 2# battery holder 6b.

[0073] Such as figure 1 , 6 As shown, the above-mentioned manifold 3 is a copper-aluminum composite board, one side of the copper-aluminum composite board is a copper board, and the other side of the copper-aluminum composite board is an aluminum board. The face of the copper plate faces the electrode of the power battery pack, and the face of the aluminum plate faces away from the electrode of the power battery pack. Such as figure 1 , 4 , 5, and 6, specifically: the positive manifold 3a is a copper-aluminum composite plate, the copper plate of the positive manifold 3a faces the positive pole of the power battery pack, and the aluminum plate of the positive manifold 3a faces away from th...

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Abstract

The invention relates to a power battery pack. The positive electrode and negative electrode of the power battery pack are respectively provided with a copper-aluminum composite plate. One surface of the copper-aluminum composite plate is a copper plate, and the other surface is an aluminum plate. The copper plates face the electrodes of the power battery pack. The back of the aluminum plates face the electrodes of the power battery pack. The single cells (1) in each row are parallelly connected and welded through one fuse (2); the electrodes of the single cells (1) and the fuse (2) are welded through ultrasonic waves, and the aluminum plates and the fuse (2) are welded through ultrasonic waves. The processing becomes convenient, the cost is reduced, after adopting the abovementioned technical scheme, moreover, the parallel connection of the battery pack is stable and reliable, and the conductive performance is excellent.

Description

technical field [0001] The present invention relates to a connection method of a power battery pack, in particular to a parallel connection method of a high-power power battery pack. It can be used in the technical field of manufacturing and processing power battery packs such as battery packs of electric vehicles, battery packs of electric motorcycles, and battery packs of electric bicycles. [0002] The second invention relates to a power battery pack, in particular to a high-power power battery pack. It can be used in the technical field of manufacturing and processing power battery packs such as battery packs of electric vehicles, battery packs of electric motorcycles, and battery packs of electric bicycles. [0003] The second invention is a specific product produced by using the method described in the first invention. Background technique [0004] As a source of power, high-power power battery packs are the first choice for the development of electric vehicles, emer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20H01M2/26H01M2/34H01M50/516H01M50/522H01M50/531H01M50/583
CPCH01M2220/20H01M50/502H01M50/531H01M50/572Y02E60/10
Inventor 周伟
Owner 周伟
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