Patent · US Expired

Electromagnetic relay and method for the production thereof

US5689222A · kind A · utility

4Cited by

3References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Siegfried Schneider · Erlangen, DE
Manfred Mitsch · Ansbach, DE
Theodor Sturm · Sachsen, DE

Key dates

Filing date	Oct 12, 1995
Grant date	Nov 18, 1997
Priority date	—
Expiry date	Oct 12, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2050/367
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electromagnetic relay having a coil core which carries a coil. The coil is connected to one end to the short limb of an L-shaped magnet yoke, on a long limb of the L-shaped magnet, a hinged armature is supported in a manner which allows the armature to pivot about a pivot axis on the long limb of the magnet. In order to achieve a precisely defined switching behavior which is concurrent for the relays of a series, the length of the coil core is produced by means of upsetting as a function of the height of the pivot axis above a base area of the magnet yoke on which the coil core is secured, with the result that the position of the hinged armature with respect to a pole face of the coil core is precisely defined.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.