Ishikawa Tekko Kabushiki Kaisha

Mitsuo Yamamoto

A system includes a prime mover, such as an automobile engine, having operative and inoperative states; an electrical load; an accumulator or battery for operating the load; and a control system for the battery. The control system includes: a self-holding keeping relay having contacts in circuit between the battery and the load and having a resetting coil to control energization of the load from the battery; a warning device; a detecting device and a detecting switch controlled thereby responsive to a fault condition in the battery; and a changeover switch responsive to the operative state of the prime mover for operating the detecting switch. The control system is responsive to a fault condition in the battery, such as overdischarge or low electrolyte, to prevent energization of the load when the prime mover is inoperative and to enable energization of the load and operation of a warning signal device when the prime mover is operative.

Device for detecting the overdischarge of battery

A device for detecting the overdischarge of the accumulator as well as the surface level of electrolyte contained in the accumulator comprising a floating member, a case housing the floating member and having a hole through which the electrolyte in the accumulator passes, a means for sucking the electrolyte through the hole into the case, and a magnetically sensing switch arranged to be operated responding to movement of the floating member. At least one chamber communicated with the outside of the case is provided in the case outside the hole through which the electrolyte passes.

Growing community of inventors

Kakegawa, Japan

Mitsuo Yamamoto