Permanent magnet synchronous motor, rotor of the same, and compressor using the same
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United States of America Patent
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Aug 10, 2010
Grant Date -
Dec 13, 2007
app pub date -
Jun 5, 2007
filing date -
Jun 9, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The inventive self-initiated permanent magnet synchronous motor has a rotor that has two-pole permanent magnets, as well as magnetic substances in a peripheral direction between the magnetic poles of the permanent magnets. The present invention provides a high-efficiency, high-torque permanent magnet synchronous motor with an improved power factor, its rotor, and a compressor using the permanent magnet synchronous motor, without a reduction in the maximum torque and an increase in costs.
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