Cylindrical combined PACK battery module structure

• Main Author: GAO HAIGANG
• Format: Patent
• Language: Chinese; English
• Published: 09.10.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a cylindrical combined PACK battery module structure, and the structure comprises a cylindrical box body, an outer heat exchange system and a base; the cylindrical box body comprises an upper box body and a lower box body which are both of a semi-closed structure. Battery modules and semi-cylindrical fixing brackets or cylindrical fixing brackets for fixing the battery modules are arranged in the upper box body and the lower box body; the outer heat exchange system comprises an upper half part spirally wound on the periphery of the upper box body and a lower half part spirally wound on the periphery of the lower box body; the ends of the upper half outer heat exchange system and the lower half outer heat exchange system are connected through flanges and can be detached along with the upper box body or the lower box body. The base is arranged at the lower part of the lower box body. According to the invention, the light weight target can be realized in structure,the PACK stress concentr