Improved rechargeable battery power system having a battery with multiple uses

摘要

A rechargeable battery power system 16 comprises a battery 50 disposed in a battery housing; the battery having a module bank with cells; a battery management system 16 and a battery line 52 which connects the battery to the management system; a driver controller for controlling a variable frequency motor driver 14 connected to and powered by the battery; an AC induction motor 12 with motor drive lines connected to the variable frequency motor driver and the AC induction motor having an output shaft 34 and a hydraulic pump driven by the output shaft and wherein the driver controller is mounted on a piece of equipment with controller isolation mounts and the AC induction motor supported on the piece of equipment with motor isolation mounts; a battery management interface for connection to an external power source for charging the battery; a piece of equipment having a throttle that is connected to the variable frequency motor driver so that the rate of rotation of the output shaft can be controlled by the throttle and a sequential shutdown system and a management shutdown line which extends from the sequential shutdown system to the battery management system and the sequential shutdown system for controlling the shutdown of the piece of equipment. There is also disclosed a battery housing characterised by walls composed of layers of metal and foam, fig 3. There is also claimed a light tower which supports a light which makes use of a battery and housing of the aforementioned type, fig 13. The rechargeable battery power system may be used to replace the engine of a machine such as an excavator, fig 10.