ROTOR CORE, ROTOR AND ROTATING ELECTRIC MACHINE Russian patent published in 2025 - IPC H02K1/276 H02K21/14 H02K15/02 

FIELD: electrical engineering.

SUBSTANCE: rotor core includes a section of magnetically soft material and at least one cavity for a magnet per one pole. Cavity for the magnet has spaces serving as a barrier for a flow on the front and back sides. The space has an open end section. In cross section angular section on front side of open end is angular section on front side in direction of rotation of rotor core, from two angular sections in peripheral direction of rotor core, of at least one of open end sections provided in same pole of rotor. In the cross-section, the support position relative the cavity for the magnet, having an open end section, is the position at the intersection of the straight line passing through the support end section of the permanent magnet and the line of the axis of rotation, and the outer peripheral surface of the rotor core. In cross-section, support end section of permanent magnet represents end in position at maximum distance in peripheral direction from straight line passing through central position in peripheral direction of area of one pole, including permanent magnet, and axis of rotation line. Distance in peripheral direction from straight line is distance set on the side of front and rear sides in direction of rotor core rotation, in which there is open end section. In cross section of position of angular sections on front side of open end of all open end sections provided in same pole of rotor, are located on the rear side in the direction of rotation of the rotor core further from the reference position relative to the cavity for the magnet having an open end portion.

EFFECT: increased rotor torque.

18 cl, 26 dwg, 4 tbl