Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1995-10-12
1997-11-18
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335 80, 335128, H01H 5122
Patent
active
056892225
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.
REFERENCES:
patent: 4267540 (1981-05-01), Iketani
patent: 4870378 (1989-09-01), Biehl et al.
patent: 4972166 (1990-11-01), Mitsch et al.
Mitsch Manfred
Schneider Siegfried
Sturm Theodor
Donovan Lincoln
Greigg Edwin E.
Greigg Ronald E.
Robert & Bosch GmbH
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