Patent ID: 6677840
Filing Date: 2004-01-13
Classification: H01H

Abstract:
An electromagnetic relay comprising:a first fixed contact terminal and a second fixed contact terminal spaced from each other on a first main surface of a base block; fixed conductor pieces of a number nâˆ’1 mounted in adjacent, spaced relationship on said one surface of said base block in alignment with, and between, the first fixed contact terminal and the second fixed contact terminal; and an L-type yoke affixed to the base and having a first leg transverse to the first main surface of the base in a second leg extending parallel to and spaced from the first main surface and a coil mounted therebetween having a axis parallel to the first main surface; an armature and a generally L-shaped spring having a first leg portion, a central mounting portion secured to a central portion of an outer surface of the armature and resiliently displacing the armature from the coil and a second leg portion comprising at least one moving conductor piece, in a number n, supported by the cantilevered spring member portion and simultaneously moved with the armature by energization of the coil mounted on said base block, for connecting the first fixed contact terminal, the second fixed contact terminal and the two adjacent fixed conductor pieces simultaneously in a series circuit relationship, a central, extension portion of the spring, integral with the central portion thereof, extending to and engaging an upper portion of the outer surface of the armature; wherein: the first fixed contact terminal and the second fixed contact terminal are connected together through serially arranged contact sets of a number 2n formed by the first fixed contact terminal, the second fixed contact terminal, the fixed conductor pieces of the number nâˆ’1 and the moving conductor pieces of the number n, and n is an integer not smaller than 2.