| 主权项 |
1. A rotor comprising:
a rotor core including a plurality of annular bodies that are stacked in layers in a stacking direction, each of the annular bodies being comprised of a plurality of core segments that are made of a magnetic steel sheet and arranged along a circumferential direction of the rotor core; and a plurality of permanent magnets provided in the rotor core, wherein the number of the core segments in each of the annular bodies is set based on k, where k is a natural number representing the number of magnetic poles formed by the permanent magnets, the rotor core has n through-holes formed therein, where n is a natural number greater than or equal to k, the rotor further comprises n fixing members each of which extends in the stacking direction through a corresponding one of the through-holes of the rotor core so as to fix the rotor core to a fixed member, between each circumferentially adjacent pair of the core segments, there is formed a gap that is greater than a clearance provided between the through-holes of the rotor core and the fixing members, and at least one of the annular bodies is circumferentially offset from another of the annular bodies by an integer multiple of one magnetic pole. |
