CONNECTION ASSEMBLY, BATTERY MODULE, BATTERY PACK, AND DEVICE USING BATTERY MODULE AS POWER SOURCE

The present application discloses a connecting assembly, a battery module, a battery pack, and a device using the battery module as a power supply. The connecting assembly includes a plurality of connecting sheets and an insulating film, where the connecting sheet includes an adjusting portion and a connecting portion, the adjusting portion is configured as a protrusion connected between adjacent connecting portions, the connecting portion is configured to connect a battery cell of the battery module, and the insulating film is disposed on one side of each of the plurality of connecting sheets, and the insulating film is provided with a through hole disposed corresponding to the adjusting portion. When the connecting sheets and the insulating film are integrally formed, since the adjusting portion is set as the protrusion, the providing of the through hole may improve the ductility of the insulating film at the protrusion, so that the problem that the insulating film is wrinkled and torn due to the protrusion is avoided, and the manufacturing efficiency of the connecting assembly can be improved.