| 摘要 |
<p>Provided are a rotor for a rotating electrical machine, a rotating electrical machine in which the rotor is used, and an electric vehicle. The rotor is adaptable to high-speed rotation and is capable of providing the effect of reducing electromagnetic vibration noise even with large stack thicknesses. A rotor (10) of an embedded-magnet rotating electrical machine having N poles, wherein: magnetic gaps (201) provided independently from magnet insertion holes (302) are provided on the surface or in the interior of a rotor piece; the magnetic gaps are provided so as to be asymmetrical about the d-axis and symmetrical about the q axis, symmetrical about the d-axis and asymmetrical about the q axis, or asymmetrical about the d-axis and asymmetrical about the q axis so as to have a periodicity of 2/N; and a configuration is obtained by stacking k rotor piece units (101-1, 101-2) (where k is an integer equal to or greater than 2) stacked so that the axial lengths of the rotor pieces are at a ratio of 1:2:1, or stacking k rotor piece units (where k is an integer equal to or greater than 1) stacked so that the axial lengths of the rotor pieces are at a ratio of 1:2:2:1, so that the circumferential positions of the magnetic gaps of adjacent rotor pieces (11a, 11b) are displaced by one pole.</p> |
