Patent ID: 6046660
Filing Date: 2000-04-04
Classification: H01H

Abstract:
A latching magnetic relay assembly comprising:a relay motor assembly comprising an elongated coil bobbin having an axially extending cavity therein and an excitation coil wound therearound, a generally U shaped ferromagnetic frame, the ferromagnetic frame having a plurality of core sections being disposed in and extending through the axially extending cavity in the elongated coil bobbin and a first and second contact sections extending generally perpendicularly to the core section and rising above the motor assembly;an actuator assembly comprising an actuator frame operatively coupled to a first and a second generally U-shaped ferromagnetic pole pieces, and a permanent magnet, the first pole piece mounted in overlapping relation over the second pole piece, the permanent magnet lying sandwiched therebetween, the actuator assembly positioned so the second pole piece is located in between the first and second contact sections of the ferromagnetic frame and the first pole piece is located in overlapping relation across from the two contact sections of the relay motor, the first and second pole pieces magnetically coupled to opposite contact sections; anda contact bridge assembly, the contact bridge assembly comprising a contact bridge and a spring, the contact bridge of a conductive material and operatively coupled to the actuator assembly, the spring connected to the contact bridge, the movement of the actuator assembly either driving the contact bridge into contact with a pair of contact points positioned directly opposite the contact bridge, the contact bridge serving as a conductive pathway between the two contact points, or driving the contact bridge into breaking contact with the contact points, the movement of the actuator assembly driven by the relay motor.