Magnet system for an electromechanical switching device and electromagnetic relay
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United States of America Patent
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Issued Date -
Feb 26, 2004
app pub date -
Oct 4, 2002
filing date -
Oct 5, 2001
priority date (Note) -
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Abstract
A magnet system for an electromechanical switching device. The magnet system having an electromagnetic coil system. An iron circuit having a core and a yoke partially surrounded by the electromagnetic coil system. The iron circuit having a magnetic field excited by the electromagnetic coil system. A permanent magnet arranged outside of the iron circuit that has field lines superimposed by the magnetic field of the electromagnetic coil system. The field lines of the permanent magnet strengthen the magnetic field of the electromagnetic coil system in a first region and weaken the magnetic field of the electromagnetic coil system in a second region such that the magnetic field in the first region and the magnetic field in the second region balance each other.
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