Siemens Aktiengesellschaft

Horst Tamm

Rolf-Dieter Kimpel

Josef Weiser

Ulrich Kobler

Eberhard Wanka

Ulf Rauterberg

Robert Esterl

Walter Golker

Erwin Steiger

Gerhard Furtwangler

Wolfgang Hubner

Contact spring arrangement for a relay for conducting and switching high

A magnetic field probe contains an injected coil body having a cloverleaf shape and on which two windings offset relative to one another by 90.degree. are provided. The coil body is positionally fixed in precise fashion in recesses of a bipartite housing, and are fixed therein via supporting tabs. The housing is formed of two identically fashioned half shells which are joined to one another with a friction-type lock by means of fastening elements applied in complementary fashion relative to a center plane.

Magnetic field probe with improved positioning of a winding and core

An electromagnetic relay has a hallow coil body and coil having a longitudinal axis with a bar-shaped armature pivotably mounted for movement in and extending through the coil body, a permanent magnet arrangement having polarization directions perpendicular to the coil axis, two yokes disposed in a single plain parallel to the permanent magnet arrangement, two pole plates connected to the yokes and also extending perpendicular to the coil axis, and a flux plate overlapping and spaced from the yokes and having a flat segment with the magnet arrangement being disposed in the volume defined between the overlapping area of the flux plate and the yokes, the magnet arrangement extending substantially longitudinally parallel to the coil axis. The structural arrangement of the flux plate and yokes so as to define a volume which can accommodate the magnet system permits the magnet system to be encompassed within the relay without adding to the overall length thereof, thereby adapting the relay to miniaturization. Additionally, the surfaces of the yokes and permanent magnet can exhibit a relatively large area, again without causing any increase in the length of the relay.

Polarized electromagnetic relay

An electromagnetic relay has a bar-shaped armature which is mounted at one end at a coil flange in a carrier comprised of insulating material, in which center contact blades are also mounted at opposite sides of the armature such that movement of the armature is transmitted to the contact blades through the carrier, thus eliminating the plunger which is normally present for contact actuation. The offset positioning of the contact blades with respect to the armature in the carrier causes friction which substantially prevents damaging impact of the contact pads of the contact blades with respectively mating stationary contact pads.

Electromagnetic relay

A polarized miniature relay where the armature and the armature activated electrical contacts are positioned interior of the coil winding with the contacts injection molded in contact carriers and the contact carriers and armature preassemblable onto a bar magnet forming a single unit inserted into the coil interior.

Polarized miniature relay

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Munich, Germany

Horst Tamm