Electric vehicle power battery group module structure

Abstract

The invention relates to a group module structure of an electric vehicle power battery. The group module consists of several sub-modules, and each sub-module is provided with an insulating shielding shell. A detection unit is provided on the box cover, and several The built-in components correspondingly connected with the sub-modules respectively, and the built-in components are connected with the sub-modules through wires. The invention is simple in structure, novel and reasonable in design, can realize the parallel combination of single cells and sub-modules in the module, and can also realize the series combination of sub-modules in the module, the installation process is simple, the connection is convenient, and it is convenient for the detection of a single sub-module, Maintenance, replacement, etc., can effectively reduce battery loss, and the use effect is good. The insulating protective cover and fuse on the cover can also effectively prevent short circuit of the line and electric shock of maintenance personnel, which improves the safety of the power battery and can effectively prevent collisions, short circuits, The potential safety hazards caused by overcharge and overdischarge have a wide range of applications and have good social prospects and market promotion value.

Description

technical field [0001] The invention relates to the field of electric vehicle power batteries, in particular to an electric vehicle power battery group module structure with simple structure, reasonable design, convenient maintenance and low maintenance cost. Background technique [0002] In view of the consideration of energy saving, emission reduction and environmental protection, electric vehicles are gradually replacing ordinary fuel vehicles driven by internal combustion engines, and electric vehicles powered by batteries are the mainstream direction of current research. Most of the battery modules of existing electric vehicles adopt the connection mode without sub-modules in the module. No matter whether all the single cells are connected in parallel or the single cells are connected in series, it is difficult to disassemble. The fault point is subdivided into the interior of the battery module, which is only suitable for replacing the whole module. It is difficult to ...

AI Technical Summary

Problems solved by technology

Most of the battery modules of existing electric vehicles adopt the connection mode without sub-modules in the module. No matter whether all the single cells are connected in parallel or the single cells are connected in series, it is difficult to disassemble. The fault point is subdivided into the interior of the battery module, which is only suitable for replacing the module as a whole. It is difficult to perform daily maintenance, and the maintenance cost remains high, making it difficult to centralize management and unified recovery of batteries, and waste batteries are easy to lose and cause pollution.

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