Apparatus for driving a compressor and a refrigerating air conditioner
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United States of America Patent
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Aug 9, 2005
Grant Date -
Aug 19, 2004
app pub date -
Sep 8, 2003
filing date -
Sep 9, 2002
priority date (Note) -
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Abstract
An apparatus for driving a compressor comprises a compressor having a compression mechanism part for sucking a fluid to compress the same, and an electric motor for driving the compression mechanism part, and an inverter device for driving the electric motor at variable speeds. The electric motor comprises a self-starting type electric motor having a rotor, which comprises a cage conductor and a polarized permanent magnet, and the inverter device comprises a plurality of semiconductor switches for controlling drive frequencies of the electric motor.
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