| 摘要 |
<p>Provided is a technology, wherein magnetic flux leakage is reduced when the ratio (P/S) between the number of poles and the number of slots in a permanent-magnet synchronous type rotating electrical machine is 4/3. In a rotating electrical machine provided with a field element (12) that adopts an embedded-magnet type rotor, and an armature (14), the number (n) of permanent magnets (122) and the number (m) of magnetic cores (142) provided in the armature (14) satisfy a relationship of n/m = 4/3, and when the central angle at which each of a plurality of magnetic pole faces (P1), to be generated on a surface of the field element (12) at a side facing the armature (14), spreads out with a rotation axis (Q) as the center thereof in planar view from the rotation axis side, is assumed to be a first angle (?a), a second angle (?b), which is the central angle at which each of a plurality of flange sections (146) spreads out with the rotation axis (Q) as the center thereof, in the aforementioned planar view, satisfies a relationship of 1.00 =?a/?b = 1.53.</p> |
