Battery module assembling structure and assembling method

Abstract

The invention is suitable for the technical field of power batteries and provides a battery module assembling structure and an assembling method. The structure comprises a module shell with an upwardopening, a plurality of accommodating cavities arranged in the module shell, a cover plate arranged at the top of the module shell and a stop frame arranged at the bottom of the cover plate, wherein the opening of the accommodating cavity is upward, and the accommodating cavities are arranged in a rectangular mode; and the cover plate is provided with a bus bar, a sampling wire and a power wire. Side plates around the battery module and screws for fixing the side plates are reduced, heat conducting plates between two battery cores are removed, the end plate shell of each battery core is reduced, the lightweight and compact design effects are improved, the volume can be reduced and the energy density can be increased at the same time, the conjoined module wall and the integrated module shell are adopted, and the shock resistance of the battery module is improved.

Description

technical field [0001] The invention belongs to the technical field of power batteries, and provides a battery module assembly structure and an assembly method. Background technique [0002] With the development of society, electric vehicles, as a vehicle for energy saving and emission reduction, are developing faster and faster, and the number of use is also increasing. In electric vehicles, the battery system is used to provide electric energy, and its performance largely affects the quality of electric vehicles. The basic components of the battery system mainly include battery modules, battery management systems, high and low voltage circuits, liquid cooling devices, etc., among which, each battery module is composed of multiple battery cells connected in series or in parallel. In order to improve the energy density, performance safety, and battery life of the battery, it is very important to reasonably design the arrangement structure of the battery module. In today's ...

AI Technical Summary

Problems solved by technology

Compared with the battery core, such a battery module design increases the thickness and weight, and the volume becomes larger. Not only that, there is also a battery module shell outside such a battery module. This design method will make the battery module The volume becomes very large, and the energy density of the battery decreases as a whole

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