Battery pack structure and battery pack containing it

Abstract

The invention discloses a battery group structure, comprising: two fixing plates that can be arranged at both ends of the battery, and an at least partially conductive connecting plate that can be arranged on a side of the fixing plate that is away from the battery; wherein, the fixing A fixing hole is opened on the plate to limit the battery end inside, and a through hole is opened at the bottom of the fixing hole to expose the battery end to the side of the fixing plate facing away from the battery, so that all The end of the battery can be welded to the connection plate through the through hole, and the connection plate is provided with a limit slot corresponding to the through hole to limit the welding position. The battery group structure provides good support for the battery by using two fixing plates to clamp the battery in the middle; by opening a through hole at the bottom of the fixing hole, the end of the battery is exposed and fixed to the connecting plate by welding , the series and parallel connection between multiple batteries is realized through the connection board, the group structure has few parts, is easy to operate, and is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery pack structure and a battery pack containing it. Background technique [0002] In the prior art, in order to obtain a higher battery capacity, it is necessary to connect multiple single cells in series and parallel to form a group. When the batteries are grouped, it is necessary to ensure the stability of the corresponding electrical connection between the multiple single cells. In the event of a short circuit / open circuit; also ensure the corresponding structural stability. For the current series-parallel structure of cylindrical cells used in electric vehicles and large energy storage battery packs, there are mainly the following defects: 1. The battery pack does not have a unified support, the connection between the batteries is disordered and crossed, and the production and installation process and its It is complicated and seriously affects work efficiency; 2. T...

AI Technical Summary

Problems solved by technology

For the current series-parallel structure of cylindrical cells used in electric vehicles and large energy storage battery packs, there are mainly the following defects: 1. The battery pack does not have a unified support, the connection between the batteries is disordered and crossed, and the production and installation process and its It is complicated and seriously affects work efficiency; 2. The structure of multi-string modules is difficult to realize; 3. The insulation performance of the modules is not high. For metal casings, insulation boards must be added on all six sides for insulation, which seriously affects the battery. 4. The space utilization rate of the battery module is not high, and the arrangement of the batteries can only be arranged in a matrix, and the space range has not been effectively utilized; 5. The number of fixtures used is large, and the consistency of the entire battery Not strong, battery life does not meet the requirements required by customers

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