FIELD: electricity.
SUBSTANCE: stator includes a stator core formed by connecting the annular electromagnetic steel plates by connecting parts. These connecting parts are spaced at intervals that are integer multiple of the central angle. The central angle is an angle determined by two adjacent magnetic poles of the same polarity in the circumferential direction, with a vertex on the axis of the rotor rotation. When the number of connecting parts is an odd number, fixing sites are arranged at the same interval as the step of the connecting parts, or at intervals corresponding to the step divider of the connecting parts. When the number of connecting parts is an even number, fixing sites are arranged at intervals corresponding to the step divider of the connecting parts or to the divider 180°.
EFFECT: reduction of losses for eddy currents, geometric tolerances providing by rotational build-up of annular electromagnetic steel plates.
7 cl, 3 dwg
