Battery module structure

Abstract

The invention provides a battery module structure. The battery module structure comprises a battery pack, an upper cover plate, two metal end plates, an integrated cover plate and a side cover plate;the two metal end plates are oppositely arranged at the two ends of the battery pack; the insulating end plate is arranged between the metal end plate and the battery pack; a first insulating side plate and a first metal side plate are arranged at the lower end of the battery pack from inside to outside in sequence; the first metal side plate is welded with the battery pack and the two metal end plates together through a CMT welding technology; the upper cover plate is positioned at the upper end of the battery pack, and the two ends of the upper cover plate are fixedly connected with the twometal end plates respectively; a second insulating side plate and a second metal side plate are arranged between the upper cover plate and the battery pack from inside to outside in sequence; the second metal side plate is welded with the battery pack and the two metal end plates together through the CMT welding technology; and the integrated cover plate is arranged at the side end of the batterypack. Through the CMT welding technology and a laser welding technology, the module is fixed and shaped, so that space position of a cell is limited, the problem of difficulty in battery grouping is solved, and module safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module structure. Background technique [0002] With the continuous advancement of the theme of green environmental protection, the use of electric vehicles is increasing year by year. The power battery is one of the core energy storage devices of electric vehicles, and the power battery module has become the main component and key technology of the power battery. Generally, in order to achieve the voltage and power required by electric vehicles, multiple single batteries are usually connected in parallel to form a module, and multiple modules are connected in series, and the series-connected battery modules are installed in the battery box to provide power for electric vehicles . [0003] In the battery module of the prior art, the connection of the battery is fastened by screws, and there is a risk of loosening during the operation of the vehicle; Problems, so the...

AI Technical Summary

Problems solved by technology

[0003] In the battery module of the prior art, the connection of the battery is fastened by screws, and there is a risk of loosening during the operation of the vehicle; problem, so there are risks such as short circuit and open circuit, which also bring some safety hazards to the battery box, which need to be improved

Images