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Power battery module, assembling method and electric vehicle

A power battery and module technology, which is applied to battery components, batteries, circuits, etc., can solve the problems of unsuitability for automated production, low connection reliability, and low assembly efficiency, and achieve the convenience of automated production, high assembly efficiency, and The effect of improving productivity

Active Publication Date: 2016-01-13
ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low assembly efficiency, unsuitability for automatic production and low connection reliability in the existing power battery module structure, and provide a high assembly efficiency, suitable for automatic production and reliable connection. A power battery module, an assembly method of the power battery module, and an electric vehicle using the power battery module

Method used

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  • Power battery module, assembling method and electric vehicle
  • Power battery module, assembling method and electric vehicle
  • Power battery module, assembling method and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: as figure 1 , figure 2 , image 3 As shown, a power battery module includes a battery compartment 1, a number of soft-pack batteries 2 arranged in the battery compartment, and a PCB board 3 arranged on the upper part of the battery compartment. The upper side of the soft-pack batteries is provided with sheet-like The tab 21 formed by the positive tab and the negative tab. The battery compartment adopts a splicing structure, which includes the main fixing bracket 11 in the middle and the splicing brackets 12 respectively clamped on the left and right sides of the main fixing bracket. The cavities on the left and right sides of the battery compartment are respectively provided with a number of equal distances along the longitudinal direction of the battery compartment. The lug separators 13 on the splicing bracket are also provided with several lug separators, and the tab separators on each side of the main fixing bracket correspond to the tab separators ...

Embodiment 2

[0047] Embodiment 2: A method for assembling a power battery module, wherein the structure of the power battery module is as described in Embodiment 1, specifically including the following steps:

[0048] a. Put an even number of soft-packed cells vertically into the left and right sides of the main fixing bracket of the battery compartment. Arranged into a negative ear string, the odd-numbered soft-packed cells and the subsequent even-numbered soft-packed cells form a soft-packed cell pair, that is, the first and second soft-packed cells form a soft pack Cell pair, the 3rd and 4th soft-packed cells form a soft-packed cell pair...and so on, and then the two splicing brackets are respectively clamped on the left and right sides of the main fixing bracket, so that each soft-packed battery The cores are sequentially clamped in the cell card slot formed by the splicing of the main fixing bracket and the splicing bracket;

[0049] b. Place horizontal PCB boards on the upper parts ...

Embodiment 3

[0053] Embodiment 3: An electric vehicle includes a power battery. Specifically, the power battery is composed of several power battery modules connected in series, wherein the power battery module adopts the power battery module described in Embodiment 1.

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Abstract

The invention discloses a power battery module, an assembling method and an electric vehicle. The power battery module comprises a battery compartment, flexibly packaged electric cores and a PBC plate arranged at the upper part of the battery compartment; a tab is arranged on the upper side of each flexibly packaged electric core; the battery compartment comprises a main fixed bracket in the middle; spliced brackets are arranged on the left and right sides of the main fixed bracket in a clamping manner; a plurality of electric core clamping grooves spliced by the main fixed brackets and the spliced brackets are formed in the left and right sides of the battery compartment; the electric core clamping grooves are longitudinally arranged along the battery compartment; the flexibly packaged electric cores are clamped in each of the electric core clamping grooves in sequence; tab perforating holes are formed in the position, corresponding to the tabs, in the PCB plate; the positive electrode tabs and the negative electrode tabs of the flexibly packaged electric cores upwardly penetrate through the corresponding tab perforating holes to form connection parts; the connection parts are bent to be clung to the PCB plate; and the connection parts are in spot welding connection with conductive nickel sheets on the surface of the PCB plate. The power battery module can avoid damage of the flexibly packaged electric cores and the environment pollution caused in the tin soldering process; and in addition, the power battery module is high in the assembling efficiency, suitable for industrial production and capable of ensuring reliable connection as well.

Description

technical field [0001] The invention relates to the technical field of power batteries for vehicles, in particular to a power battery module convenient for automatic production and an electric vehicle using the power battery module. Background technique [0002] Lithium-ion battery technology has become increasingly mature, and the soft-pack battery pack has many advantages such as lightness, thinness, long cycle life, good safety performance, high energy density, stable discharge platform, excellent power performance, environmental protection and no pollution. to develop rapidly. In the prior art, people usually use soldering process to assemble several single batteries in series and parallel to form a power battery module, and then connect several power battery modules in series to form a power battery for use. However, for soft-pack batteries, the high temperature during soldering has great damage to the soft-pack batteries themselves, and has high requirements for opera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/20H01M50/211H01M50/244H01M50/249H01M50/258H01M50/284H01M50/519H01M50/533
CPCH01M2220/20H01M50/502H01M50/20Y02E60/10
Inventor 潘健健孙延先任宁王玉龙聂春雷
Owner ZHEJIANG CHAOWEI CHUANGYUAN INDUSTRAIAL
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