Battery constant-pressure clamping device and method thereof

The invention relates to a battery constant-pressure clamping device and method, and the method comprises the steps: firstly applying an acting force to a bearing plate through a pressurizing device, and driving the bearing plate to move towards a first end plate; when the pressure maintaining spring between the pressure bearing plate and the pressure applying plate is compressed, the pressure applying plate is pushed and pressed to clamp the battery; then, when the applied pressure reaches a preset value, the constant pressure bolt is locked, so that the bearing plate is maintained at the current position; and finally, the acting force applied by the pressurizing device is removed. Therefore, the pressure maintaining spring can provide proper compression force, has a buffering effect, and can be used for adsorbing excessive and improper external thrust. Besides, a pressure maintaining effect is formed by utilizing a constant pressure bolt, namely, a constant compression force is formed by fixing a pressure m