| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic noise reducing method of a magnet embedded synchronous motor for inhibiting a complication of a control circuit and finely reducing magnetic sounds. SOLUTION: A high frequency component in the magnetic noise is reduced by adjusting positions and circumferential widths of regions 13, 14 formed on an outer circumference 10 of a rotor core 1 in the vicinity of flux barriers 4, 5 and drastically changing magnetic pole density. COPYRIGHT: (C)2006,JPO&NCIPI
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