Battery pack

Abstract

The invention discloses a battery pack. The battery pack comprises a plurality of battery modules and a module shell, wherein each battery module comprises a plurality of single batteries, a plurality of supports, a convergence plate, an insulation plate, two module end plates, two acquisition plates, two fans and a plurality of screw rods, each support comprises a first surface, a second surface and a side surface, the second surface deviates from the first surface, a plurality of convex blocks are formed on the side surface, a pit is formed between adjacent convex blocks on the side surface of each support, the convergence plate comprises a first convergence plate, a second convergence plate and a third convergence plate, the insulation plate comprises a first insulation plate and a second insulation plate, accommodating holes are formed in the module shell and are in one-to-one correspondence to the battery modules, positioning blocks are formed by protruding an inner wall of each accommodating hole and are matched with the pits of the supports, each battery module is accommodated in one corresponding accommodating hole of the module shell, and the pits are matched with the positioning blocks.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of electric vehicles, in particular to a battery pack. [0003] 【Background technique】 [0004] In recent years, the new energy vehicle industry has ushered in explosive growth. As the core component of electric vehicles, the power battery module is directly related to the stability and reliability of its structure and affects the performance and life of the entire vehicle power system. Most of the existing battery modules are cuboid in shape and have poor impact resistance; the battery modules are fixed by bolts and screws, the installation process is cumbersome, the disassembly and assembly are troublesome, and the stability is poor; the inside of the battery module is a closed structure. The heat of the battery is difficult to dissipate, resulting in heat accumulation of the single battery, which affects the life of the single battery; the cooling fan is installed on the inner wall of the battery...

AI Technical Summary

Problems solved by technology

Most of the existing battery modules are cuboid in shape and have poor impact resistance; the battery modules are fixed by bolts and screws, the installation process is cumbersome, the disassembly and assembly are troublesome, and the stability is poor; the inside of the battery module is a closed structure. The heat of the battery is difficult to dissipate, resulting in heat accumulation of the single battery, which affects the life of the single battery; the cooling fan is installed on the inner wall of the battery box, occupying the space of the battery box, and the heat dissipation effect is not good; the module end plate is produced by bending and welding processes , the production process is complex, the demand for production raw materials is large, and the practical function is single

Images