Abstract: A polarized electromagnet relay with reduced width and height is disclosed to have on a base plate an electromagnet block, an armature block with a permanent magnet and at least one contact assembly. The armature block is cooperative with the electromagnet block and is driven in response to the energization thereof to reciprocate between two operating positions so as to actuate the contact assembly for contact switching. The electromagnet block includes a generally E-shaped yoke with a pair of opposed side legs and a center leg defining a core around which the excitation coil is wound. The contact assembly is mounted on the lateral side of the base plate to be received between the adjacent side leg and the base plate so as not to add an extra dimension to the width of the relay.

Abstract: A relay structure advantageous for compacting purpose is disclosed herein. The relay comprises a generally L-shaped yoke having an upright yoke leg and an upper yoke member extending substantially at a right angle thereto, the upright yoke leg being connected to one end of the core of an energizing coil which extends substantially in parallelism with said upper yoke member. The upper yoke member is formed with a center slot extending longitudinally thereof to be open at both longitudinal ends. A generally L-shaped armature is hingedly supported onto the free end of the upper yoke member with a tab extending across the air gap defined between the free end of the upper yoke member and the opposite end of the core. Extended from the upper end of the tab is an actuator arm which is received in said slot and on which overlies a spring blade carrying at its free end a movable contact.

Abstract: An AC current electromagnetic relay is disclosed herein. The relay comprises a U-shaped armature with arms connected by a web and a generally E-shaped yoke with an elongated center leg and shortened side legs extending from a common base, the elongated center leg serving as a core around which a coil and a shading ring are disposed. The U-shaped armature is placed on the yoke with the free end edges of the arms being pivotally supported on the respective side legs of the yoke, so that upon the energization of the coil the armature is pulled toward the yoke and abuts against the respective free end portions of the side legs and the center leg, such free end portions being cooperative to define apexes of a triangle. Thus, a three-point contact can be attained between the armature and the yoke.