Mitsubishi Denki Kabushiki Kaisha

Tokio Nakashima

Hiroyuki Sasao

Yukimori Kishida

Kazuhiko Kagawa

Chie Takahashi

Takafumi Nishioka

Eiji Moritoh

Yoichi Ueno

An electromagnetic repulsion drive switching device in which a contact-closing coil and a contact-opening coil are arranged to confront a conductive repulsive member, and in which a drive current is fed to a selected one of the individual coils from a capacitor charged to a predetermined charge voltage by a charging power source. A stationary contact and a movable contact are brought into and out of contact by a repulsion electromagnetic force generated between the coils and the repulsion member. A voltage control controls the output voltage of the charging power source so that the peak value of the drive current may fall within a range with respect to a temperature change of the capacitor. As a result, even if the working temperature of the capacitor changes, the drive current of the contact-closing coil and the contact-opening coil falls within a desired range.

Electromagnetic repulsion driven switch

Growing community of inventors

Tokyo, Japan

Tokio Nakashima