Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Ritu Yamamoto

Hideki Enomoto

Yoshihisa Fukuda

Ryosuke Ozaki

Yoji Ikeda

Masahiro Ito

Tsukasa Nishimura

Katsutoshi Yamagata

Katumi Yositani

A contact device includes a contact point block, a drive unit, and permanent magnets. The contact point block includes fixed terminals having fixed contact points and a movable contactor having movable contact points arranged side by side on one surface of the movable contactor. The movable contact points are configured to come into contact and out of contact with the fixed contact points. The drive unit drives the movable contactor such that the movable contact points come into contact and out of contact with the fixed contact points. The permanent magnets are arranged in a mutually opposing relationship across the contact point block along a direction orthogonal to an arrangement direction of the movable contact points and to a direction in which the movable contact points come into contact and out of contact with the fixed contact points. The permanent magnets are provided with mutually-opposing surfaces having the same polarity.

Contact device

A contact apparatus includes a case; fixed terminals having the fixed contacts arranged within the case; a movable contact member having the movable contacts provided on one surface thereof so as to come into contact or out of contact with the fixed contacts; a first yoke arranged on said one surface of the movable contact member within the case, one surface of the first yoke facing an inner surface of the case and the other surface thereof facing said one surface of the movable contact member; and a second yoke arranged on the other surface of the movable contact member within the case, the second yoke having one surface facing the other surface of the first yoke through the movable contact member. The first yoke is larger in volume than the second yoke.

Contact apparatus

A sealed contact device includes an electromagnet blockincluding a coil bobbin, a movable iron core, a yoke, and a return spring; a contact blockincluding a sealing container, fixed contact points, a movable contact memberarranged within the sealing containerand composed of a rectangular body portion, first and second protrusionsformed in longitudinal sides of the body portionand movable contact points, and a shaft; and a case. The first and second protrusionsof the movable contact memberare formed in non-point symmetry with respect to a connection portion of the movable contact memberand the shaftso that, when the movable contact memberis rotated, only one of the first and second protrusionsmakes contact with the sealing container

Sealed contact device

Growing community of inventors

Mie, Japan

Ritu Yamamoto