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Lightweight power battery pack

A power battery pack, lightweight technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of low energy density and low integration of power battery packs, and achieve energy density improvement, weight reduction, and reduction of occupation. the effect of space

Pending Publication Date: 2017-09-15
格林美(武汉)新能源汽车服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, since the thickness of the epoxy plate between the modules is 1 mm, and each module is filled with silica gel, and the box body of the existing power battery pack is mostly made of SPCC steel, the power battery pack Relatively low integration and low energy density

Method used

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Examples

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Embodiment 1

[0026] A lightweight power battery pack provided by the present invention is characterized in that:

[0027] Including the box and eight battery modules located in the box, these eight battery modules include seven 12S battery modules and one 10S battery module, a single 12S battery module is composed of 12 battery modules stacked, A single 10S battery module is stacked by 10 battery modules; these battery modules are connected in series and neatly arranged in the box;

[0028] The box body includes a matching sheet molding plastic upper cover plate and a cast aluminum lower box body;

[0029] Each battery module includes a battery stack formed by stacking several battery modules and copper sheets vertically, copper bars arranged at both ends of the battery stack, insulating plates, support plates, and several screws; the copper sheets are arranged on every two adjacent between battery modules;

[0030] The copper bar is arranged on the outside of the battery stack, the insu...

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Abstract

The invention provides a lightweight power battery pack. The lightweight power battery pack comprises a box body and a plurality of battery module groups arranged in the box body, and the box body comprises an upper sheet plastic cover plate and a lower cast aluminum box body matching with the upper sheet plastic cover plate; every battery module comprises a battery stack formed by vertically stacking a plurality of battery modules and copper sheets, copper bars arranged at two ends of the battery stack, an insulating plate, a supporting plate, and a plurality of screws; the copper sheets are arranged between every two adjacent battery modules; and the copper bars are arranged at the outer side of the battery stack, the insulating plate is arranged at the outer side of the copper bars, the supporting plate is arranged at the outer side of the insulating plate, the battery stack, the copper bars, the insulating plate and the supporting plate are provided with connecting holes corresponding to the screws in quantity, and the screws traverse through the connecting holes on the battery stack, the copper bars, the insulating plate and the supporting plate to connect the battery stack, the copper bars, the insulating plate and the supporting plate into one body. The lightweight power battery pack has the advantages of effectively improved integration level and energy density, improvement of the production efficiency and the safety of the battery module group, and reduction of the production cost.

Description

technical field [0001] The invention belongs to the technical field of power batteries, in particular to a lightweight power battery pack. Background technique [0002] Due to the advantages of high capacity, small size and light weight, power batteries have been widely used in vehicle systems and energy storage systems. Some large automobile manufacturers and battery suppliers have done a lot of research and experiments on various power batteries, and successfully developed related battery management systems. The battery management system is formed by connecting multiple power battery packs in parallel, and each power battery pack includes multiple power battery modules, a battery monitoring unit corresponding to each power battery module, a battery management unit, and a relay. With the development of power battery pack technology, people have higher and higher requirements for the energy density of power battery packs. Most of the existing power battery packs increase th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/20
CPCH01M50/20H01M50/502Y02E60/10
Inventor 许开华周继锋
Owner 格林美(武汉)新能源汽车服务有限公司
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