Power supply apparatus for field winding motor and field winding motor including the same
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United States of America Patent
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Apr 14, 2020
Grant Date -
Jan 4, 2018
app pub date -
Jul 3, 2017
filing date -
Jul 4, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A power supply apparatus for a field winding motor. A brush is disposed is a holder. An armature is connected to the brush and disposed in the holder. A slip ring is electrically connected to or disconnected from the brush. A support spring surrounds the brush between the slip ring and the armature. A coil is disposed outside of the holder so as to overlap the support spring and the armature. A first power terminal is connected to the brush and supplies a first driving current. A second power terminal is connected to the coil and supplying a second driving current.
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