Siemens Aktiengesellschaft

Gerhard Furtwaengler

Heinz Stadler

Josef Weiser

Ulrich Kobler

Bruno Jaegle

A relay includes a coil member having two through extending contact spaces parallel to the axis of the coil member. The contact tongues are arranged in the contact spaces and are anchored in common in a first coil flange to form working air gaps with pole pieces in the region of a second coil flange. The pole pieces are arranged in pairs and lie perpendicularly in a plane at an end face of the second coil flange. A permanent magnet arrangement having a plurality of magnetic poles corresponding to twice the number of pole pieces polarized the pole pieces. The permanent magnet poles facing away from the pole pieces are coupled to the bearing side of the contact tongues via flux guidance plates. The permanent magnet regions allow individual independent balancing of each and every pole piece to achieve synchronous switching of the two contact tongues.

Polarized electromagnetic multi-contact relay

A polarized electromagnetic relay includes an operating winding on a core and a two-legged pivotal armature whose first leg forms a first working air gap with one pole of the winding and whose second leg forms a second working air gap with an angular yoke. A permanent magnet is arranged parallel to the operating winding and provides a magnetic flux which is closed partially by way of the first armature leg and the first working air gap and partially by way of the second armature leg and the second working air gap. The armature is pivotally supported on a yoke plate which extends parallel to the operating winding and in alignment with and separated from a leg of the angular yoke. The angular yoke and the yoke plate each include a flat surface portion for mounting opposite end portions of the permanent magnet.

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Unterhaching, Germany

Gerhard Furtwaengler