Winfred R. Lemke - Mequon WI James T. Tucker - Menomonee Falls WI Kenneth H. Marien - Wauwatosa WI Joseph J. Gribble - Milwaukee WI
Assignee:
Square D Company - Palatine IL
International Classification:
H01H 360
US Classification:
335193
Abstract:
A low cost electromagnet assembly for a relay. The assembly includes an I-shaped stationary magnet that extends through a passage in a magnet coil and a U-shaped armature assembly with the armature assembly. The armature assembly includes a molded armature guide having projections on a rear wall of the guide arranged to actuate a plurality of switch plungers, side walls extending from the rear wall defining a cavity and an opening in the rear wall exposing a portion of the cavity at the rear wall side of the guide. The assembly also includes the U-shaped armature having a body portion positioned in the cavity and an elastomeric pad position between the armature body portion and the rear wall and a conical spring between the body and guide for absorbing shock created when the electromagnet is deenergized.
Kenneth J. Marien - Wauwatosa WI Winfred R. Lemke - Mequon WI
Assignee:
Square D Company - Palatine IL
International Classification:
H01H 5004
US Classification:
335132
Abstract:
An electromagnetic relay having a three part housing. A first or base housing part positions a magnet coil and a stationary magnet pole piece. A second or front housing part positions springs for positioning the coil in the base part, provides a seat for armature return springs and a guide for an assembly including a magnetic armature. A third or a middle housing part maintains the return springs and armature assembly assembled in the front housing part. The front and middle housing parts have rectangularly shaped confronting surfaces which are spaced so the areas of engagement between the middle housing part and the front part are limited to the areas at the four corners of the front and the middle housing parts. The relay also includes a movable contact actuator that is held captive by a cover for the relay.