| 摘要 |
<p>In a slotless permanent magnet rotary electric machinery, comprising a substantially cylindrical rotor ( 53 ) incorporated with a permanent magnet ( 52 ), a stator iron core ( 54 ) surrounding the rotor; and a coil ( 55 ) provided between the rotor ( 53 ) and stator core ( 54 ) in a spaced relationship with respect to the rotor ( 53 ), the coil ( 55 ) comprises a plurality of turns which are shifted from one turn to another along the circumferential direction in a mutually overlapping manner; and the coil turns are formed by a conductor ( 60, 60 a , 60 b) having an elongated cross section, a long axis of the cross section extending in a radial direction. This provides rotary electric machinery which can significantly reduce loss in a high speed range without substantially increasing copper loss.</p> |
