In an input device in which an electromagnetic force generated by applying current to a coil acts on an operation knob as a reaction force of an operation force, a repulsion magnet is disposed at one of a coil side yoke, a first yoke, or a second yoke to generate a repulsive force to a first magnet or a second magnet so as to offset the resultant of a first attraction force of the first magnet to the coil side yoke or the first yoke and a second attraction force of the second magnet to the coil side yoke or the second yoke.

In an input device in which an electromagnetic force generated by applying current to a coil acts on an operation knob as a reaction force of an operation force, a repulsion magnet is disposed at one of a coil side yoke, a first yoke, or a second yoke to generate a repulsive force to a first magnet or a second magnet so as to offset the resultant of a first attraction force of the first magnet to the coil side yoke or the first yoke and a second attraction force of the second magnet to the coil side yoke or the second yoke.

An electromagnetic repulsion actuator for a circuit breaker is provided. The actuator can include a housing; a first fixed electrode having therein an operating space open at both sides; a pair of movable electrodes capable of reciprocally moving and being electrically connected to the first fixed electrode; second fixed electrodes selectively contacting the pair of movable electrodes to be electrically connected thereto, thereby transferring power supplied from a first side to a second side; and actuating coils selectively moving the movable electrodes in a direction of being separated from the second fixed electrodes by generating electromagnetic force from induced current. In the present invention as above, the structure of a circuit breaker is simplified and moving speeds of the movable electrodes are increased since the movable electrodes move by using induced current generated by a close coil and open coils to perform an open operation.

A movable member is configured to switch, by rotation, between a first state and a second state. In the first state, the movable member presses a plurality of first movable contact pieces to bring first contacts into contact with first substrate side contact points. When the movable member is in the second state, the first contacts are separated from the first substrate side contact points. A coil block includes a coil and causes the movable member to rotate by electromagnetic force generated by energization of the coil. A rotation axis of the movable member is parallel to an axis of the coil. The plurality of first substrate side contact points is arranged side by side in an axial direction of the coil on a first base substrate. The plurality of first movable contact pieces is arranged side by side in the axial direction.

A contact mechanism includes: a movable touch piece that includes a caulking portion, a pair of arms forked from the caulking portion and respectively having free ends, first and second movable contacts provided at the respective free ends of the pair of arms, and a coupler configured to couple the free ends of the pair of arms; and first and second fixed contacts disposed respectively facing the first and second movable contacts contactably to or separably from the first and second movable contacts.

A contact mechanism includes: a movable touch piece that includes a caulking portion, a pair of arms forked from the caulking portion and respectively having free ends, first and second movable contacts provided at the respective free ends of the pair of arms, and a coupler configured to couple the free ends of the pair of arms; and first and second fixed contacts disposed respectively facing the first and second movable contacts contactably to or separably from the first and second movable contacts.

A device includes an armature, a coil, and a circuit. The armature is configured to move between a close position that electrically couples the armature to a contact and an open position that is not electrically coupled to the contact. The coil is configured to release a voltage configured to de-magnetize the coil, thereby causing the armature to move from the close position to the open position. The circuit is configured to provide reverse driving current to the coil during a period of time when the armature moves from the close position to the open position.

An electromagnetic relay (100) has high wear resistance, high corrosion resistance, and good magnetic properties. The electromagnetic relay (100) includes a magnetic component including an alloy layer on its surface formed by diffusion-coating of at least one element selected from the group consisting of Cr, V, Ti, and Al. The alloy layer has a thickness of 5 to 60 μm, inclusive.

A DC relay resistant to short-circuit current includes two stationary contact leading-out terminals, a push rod component and a straight sheet type movable spring mounted on the push rod component. Upper magnetizers arranged in a width direction of the movable spring are mounted above a preset position of the movable spring. Lower magnetizers arranged mounted below the preset position can move with the movable spring. At least one through hole is provided in the movable spring at the preset position, so that the upper magnetizers and the lower magnetizers can approach one to another or come into contact with each other through the through holes; and at least two independent magnetically conductive loops are formed in the width direction of the movable spring by the upper magnetizers and the lower magnetizers.

A DC relay resistant to short-circuit current includes two stationary contact leading-out terminals, a push rod component and a straight sheet type movable spring mounted on the push rod component. Upper magnetizers arranged in a width direction of the movable spring are mounted above a preset position of the movable spring. Lower magnetizers arranged mounted below the preset position can move with the movable spring. At least one through hole is provided in the movable spring at the preset position, so that the upper magnetizers and the lower magnetizers can approach one to another or come into contact with each other through the through holes; and at least two independent magnetically conductive loops are formed in the width direction of the movable spring by the upper magnetizers and the lower magnetizers.