Connections between a motor assembly and a contact unit base of an electromagnetic relay

In an electromagnetic relay comprising a motor assembly, a contact unit and means for attaching together said contact unit and said motor assembly, said contact unit comprising a base of insulating material provided with stationary and movable contacts and with output lugs connected to said stationary and movable contacts, respectively, and with further output lugs, said motor assembly comprising a yoke having two flanges at right angles to each other, a core fixed to the inner face of a first one of said two flanges of said yoke, a coil mounted on said core and having a spool or frame with at least one end flange provided with electrically conducting metal tongues to which the ends of the coil wire are anchored, and a movable armature pivotally mounted to the free end of a second one of said two flanges of said yoke and having bent arms, said base of insulating material being fixed through said attaching means to the outer face of the second flange of said yoke, and said bent arms being operable to actuate said movable contacts when said coil is energized, the improvement consisting in that the metal tongues of the end flange of the frame of the coil are situated on the side of said end flange facing the second flange of the yoke, said tongues extending towards the base beyond said second flange of the yoke and being resiliently engageable with the inner end of said further lugs for making electric contact therewith when assembling together the motor assembly and the base of the contact unit.