Direct-current relay having a function of extinguishing arc and resisting short-circuit current

Abstract

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.