| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce induced voltage while suppressing any fall in output torque and to reduce torque ripples.SOLUTION: In a rotor 3 of a synchronous motor 100, each of magnetic poles 3P is configured of at least two permanent magnets 32a and 32b arranged separate from and opposing each other. At the opposing ends of the two opposing permanent magnets 32a and 32b, flux barriers 6a2 and 6b2 each comprising a gap are formed, and between the flux barriers 6a2 and 6b2 a magnetic path part 7 consisting of an electromagnetic steel sheet is formed. Opposing faces 7m and 7n opposing each other in the opposing direction of the permanent magnets 32a and 32b in the magnetic path part 7 are parallel to each other, and the separating distance 7x between the opposing faces 7m and 7n is 1 to 3 mm.</p> |
