| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor which can sufficiently hold a magnet without increasing an air gap between the magnet and a stator even in the case of an increase in size and a high speed rotation of a rotating machine in an inner rotor type rotor. SOLUTION: The rotor 1 of the inner rotor type includes the magnet 5 provided on an outer periphery of a rotor core 3 and covered on at least a part of the outer peripheral surface of the magnet 5 with a magnet cover 6 for preventing the part from being scattered. The magnet 5 is divided into split magnets 5A, 5B in an axial direction of the rotor 1 so that centrifugal forces operating at the split magnets 5A, 5B are reduced and a holding force of the magnet 5 is raised. COPYRIGHT: (C)2005,JPO&NCIPI
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