Patent ID: 6771153
Filing Date: 2004-08-03
Classification: H01H

Abstract:
An electromagnetic relay comprising:a substantially C-shaped yoke having a longitudinally extending body and first and second legs each extending vertically from a respective end of said body; a winding frame having a winding body attached to said body of said yoke and an extension extending outward from said winding body on a side of said first leg of said yoke, said extension including an upper portion arranged at least partially above said first leg, said upper portion including a recess extending substantially parallel to the longitudinal direction in which said body of said yoke extends; an excitation coil wound around said winding body; an armature having a longitudinally extending portion, a pivoting shaft extending from one end of said longitudinally extending portion in a direction of extension of said first leg of said yoke, and a vertically extending portion extending from the other end of said longitudinally extending portion, said vertically extending portion being arranged to contact said second leg of said yoke when said excitation coil is excited, said pivoting shaft having a lower end having a shaft portion formed thereon and an upper end having an upwardly projecting projection formed thereon; an insulating operating part arranged on said longitudinally extending portion of said armature; an insulating base housing arranged to support said first and second legs of said yoke and including a cavity arranged to receive said shaft portion of said pivoting shaft of said armature, said base housing having a protrusion extending upward in an area of said first leg, said projection of said armature being positioned in a space defined by said recess of said winding frame and said protrusion of said base housing; and a movable contact and a fixed contact attached to said base housing, said movable contact and said fixed contact being arranged to contact each other upon exertion of pressure by said operating part.