Pressing mechanism of battery module end plate

The utility model provides a hold-down mechanism of battery module end plate, including driving piece, hold-down plate, intermediate plate and spring, said driving piece has at least one movable end, hold-down plate is provided on the movable end of driving piece, hold-down plate is provided with the locating pin, the locating pin is matched with the locating hole on the end plate, and the spring is fixed on the intermediate plate. The end plate is arranged on the pressing plate and is selectively matched and connected with the positioning hole under the driving of the driving piece, the middle plate is located between the pressing plate and the end plate, a first through hole is formed in the middle plate, the middle plate is movably arranged on the positioning pin in a sleeving mode through the first through hole, and the spring is arranged between the pressing plate and the middle plate; the middle plate and the spring are arranged, and the pressing plate and the end plates are separated through the elasti