Battery disconnect device utilizing original single segment unmodified battery ground cable to connect/disconnect current flow at chassis connection site

摘要

The invention is an equipment or vehicle battery circuit cutoff device that mounts at the battery chassis ground mounting hole and accepts the original (in place) battery ground cable (single cable) to provide a secure electrical connection in the use configuration (HOT) and a simple quick, safe, and absolute change of state to the electrical cutoff configuration (CUT). The device employs a heavy compression spring that clamps the battery ground cable into the device when compression spring tension is released against the cable end and allows the quick release of the ground cable when a threaded stud knob or a lever assembly lifts the spring tension to allow the ground cable to be quickly removed. There is no internal switch in the device; the only switch being the presence (HOT) or absence (CUT) of the ground cable in the cutoff device insertion slot. Maximum current flow is supported with this design since the cable is locked against a heavy copper bar in the closed circuit state (HOT) so that the current flow is limited only by the capacity of the cable rather than the configuration of internal cutoff switch contacts. The cable clamping force in the closed circuit (HOT) position is constant and resistant to equipment vibration since the clamping force is derived from a high force (40 foot pounds or greater) compression spring rather than a bolt which may vibrate loose and/or may not have been adequately tightened by the equipment operator.