SWITCH WITH QUENCHING CHAMBER
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United States of America Patent
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Issued Date -
Nov 28, 2013
app pub date -
Dec 7, 2011
filing date -
Dec 7, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A switch for polarity-independent direct current operation includes fixed contacts, each including a first contact area. A movable bridge contact with second contact areas is configured to form an electrically conducting connection between the contact areas in an ON state and to separate the contact areas in an OFF state. A magnetic field exerts a magnetic force on an arc occurring between the contact areas when the OFF state is generated. Quenching chambers are provided to quench arcs with a first current direction. A first arc deflector plate extends from each of the quenching chambers toward the first contact area and a second arc deflector plate extends toward the second contact area for removing the arc into the quenching chambers. Each movable bridge contact includes two bridge plates which extend around each of the first contact areas so as to quench arcs in a second direction.
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