| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor of a rotating electrical machine, which is reduced in noise, vibration, or the like, during rotation. SOLUTION: A rotor core 2 formed by stacking multiple core materials 5 is divided into n, for example, three blocks 10, 20, and 30 each having substantially the same number of stacked core materials. The blocks 10, 20, and 30 are stacked in order, being offset by about 360/n=360/3°in the circumferential direction, according to the number n of divided blocks. The blocks 10, 20, and 30 are each divided into groups 11 and 12, groups 21 and 22, and groups 31 and 32, respectively and are stacked, being offset by about 180°in the circumferential direction. According to this structure, even if there are differences in the thickness among the core materials 5, the rotor core 2 has a uniform thickness, not only in the axis direction but also in the circumferential direction. COPYRIGHT: (C)2010,JPO&INPIT
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