Siemens Aktiengesellschaft

Ulf Rauterberg

Rolf-Dieter Kimpel

Horst Tamm

Cornelia Albert

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

A fleece is employed for the distribution of casting resin over a component surface to be sealed. Prior to the introduction of the casting resin, pressure is applied on the fleece with a heated stamp in order to smoothen the fleece. Through increased temperature of the stamp, or through a solvent, the fleece can be readily cemented together with the component surface. It is thus ensured that the fleece rests uniformly on the entire component surface to promote a favorable distribution of the casting resin.

Method for sealing an electrical component, particularly a relay

A magnetically adjustable relay which may have a sealed contact system is disclosed wherein the switching element is affixed to an elongated ferromagnetic adjusting plate. The adjusting plate is deformable under influence of an applied external magnetic field to provide for adjustment of the switching element. In disclosed embodiments the adjusting plate may be provided with a designated bending point.

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Munich, Germany

Ulf Rauterberg