Electromagnetic relay

US4972166A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Manfred Mitsch · Ansbach, DE
• Theodor Sturm · Sachsen, DE
• Karl Brandsch · Stein, DE
• Volker Busch · Oberasbach, DE
• Anton Frenznick · Nürnberg, DE

Key dates

• Filing date: Oct 5, 1989
• Grant date: Nov 20, 1990
• Expiry date: Oct 5, 2009

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2011/0075
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electromagnetic relay has a base plate, a magnetic yoke mounted on the base plate, a relay winding, a spool core supporting the relay winding, a hinged armature arranged turnably on the spool core, a switching contact supported on the hinged armature, a counter contact cooperating with the switching contact, an adjusting part adjusting a contact distance between the countercontact and the switching contact when the armature is retracted and having at least one stretching zone extending substantially in a movement direction of the armature, the adjusting part forming a lever having a free end cooperating with the switching contact and another end anchored on the base plate, and an adjusting web provided with the stretching zone and engaging at a location between the ends with the adjusting part, so that by extension of the adjusting web to adjust the contact distance at the free end of the adjusting part.