Provided is an electromagnetic switch device for starter in which an auxiliary relay is provided and which has a small size and can be easily manufactured. The electromagnetic switch device for starter includes: a main contact chamber forming a space in which a pair of main fixed contacts are located and a main movable contact can move; and a sub contact chamber forming a space in which a pair of sub fixed iron cores (A), (B) are located and a sub movable contact can move; and a cylindrical terminal block in which the main contact chamber and the sub coil are arranged so as to be adjacent to each other in the radial direction with a partition wall provided therebetween and separating the sub coil and the main contact chamber from each other.

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.

An electromagnetic actuator of an electrical contact includes: a stationary portion including at least one coil generating a magnetic field centered on a longitudinal axis; at least one core concentrating magnetic flux, installed within the coil, and including a plate spreading the magnetic flux and defining an active surface perpendicular to the longitudinal axis, and at least one element returning magnetic flux; an armature translationally movable along the longitudinal axis and relative to the stationary portion between first and second positions, by a force induced by the magnetic field; and at least one device returning the armature elastically to a predetermined position of the first position or second position. The spreading plate includes at least one rib closing magnetic field lines between the spreading plate and the armature, protruding relative to the active surface on the armature side and housed on one edge of the spreading plate.

A magnetic flux assembly for closing a magnetic circuit of a relay and a relay. The magnetic flux assembly has a yoke and a U-shaped armature that is movable relative to the yoke. The yoke has a coil part that is in a coil and a flux conduction part that conducts the magnetic flux generated by the coil.

A magnetic flux assembly for closing a magnetic circuit of a relay and a relay. The magnetic flux assembly has a yoke and a U-shaped armature that is movable relative to the yoke. The yoke has a coil part that is in a coil and a flux conduction part that conducts the magnetic flux generated by the coil.

The present utility model provides a contactor, comprising: a housing, including a first side plate and a second side plate disposed opposite to each other; a static iron core and a movable iron core located inside the housing, a coil bobbin fitted on the static iron core, a coil wound on the coil bobbin, an elastic device located between the coil bobbin and the movable iron core, and a moving contact and astatic contact disposed opposite to each other, wherein the coil bobbin includes a contact end surface facing the movable iron core and a first fixing part and a second fixing part fixed to edges of the contact end surface, length directions of the first fixing part and the second fixing part are parallel to the first side plate and the second side plate, the first fixing part is in contact with and connected to the first side plate, and the second fixing part is in contact with and connected to the second side plate. The contactor according to the present utility model has a narrower width and saves installation space.

A DC relay capable of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals, a push rod component, a straight sheet type movable spring mounted on the push rod component and two permanent magnets. The magnetic poles on the sides opposite to each other of the two permanent magnets are opposite. Two permanent magnets are connected to two yoke clips including at least two yoke sections on two sides in the width direction of the movable spring corresponding to the movable and stationary contacts. Upper magnetizers are mounted above the position. The lower magnetizers are mounted under the position. The upper and lower magnetizers can approach or come into contact with each other through the through holes in the movable spring. At least two independent magnetically conductive loops are formed in the width direction of the movable spring by the upper and lower magnetizers.

A switch in accordance with one aspect of the disclosure may include a housing connected to a first contact and configured to be rotatable, an electrode provided on an outer surface of the housing and connectable to a second contact outside the housing by rotation of the housing, a coil provided inside the housing and configured to generate a magnetic force, and a spring provided inside the housing and rotating the housing in response to the magnetic force generated by the coil.

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 having a function of extinguishing arc and resisting short-circuit current includes two stationary contact leading-out terminals, a straight sheet type movable spring, a push rod component, and four permanent magnets respectively arranged on the two sides in the width direction of the movable spring, and magnetic poles on a side facing to the movable and stationary contacts are opposite, and the two permanent magnets corresponding to a same side have opposite magnetic poles. A yoke clip is connected between the two permanent magnets. Upper and lower magnetizers arranged in a width direction at the position, and can approach one to another or come into contact with each other through the through hole provided in the movable spring; 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.