MOTOR WITH CONSTANT MAGNETS Russian patent published in 2007 - IPC H02K1/27 H02K21/12 

FIELD: electric engineering, specific features of realization of motors with constant magnets on rotor.

SUBSTANCE: on rotor of motor grooves (5) are provided for holding constant magnets (4), made in those parts of core (2A) of rotor, which correspond to sides of approximately regular polygon, having its center on the axis of core (2A) of rotor. Constant magnets (4) are inserted into corresponding grooves (5) for holding constant magnets (4). In the core (2A) of rotor four or more slits (6) are present, elongated in radial direction and distant from each other along each groove for holding constant magnets (4) on core (2A) outside grooves (5) for holding constant magnets (4), where, in accordance to the invention, on radially external end aforementioned slits (6) are positioned at approximately same distance from each other, while on radially internal end the distance between slits (6) is reduced with increase of distance from the center of each constant magnet, while distance between slits near the center is the largest.

EFFECT: usage of claimed highly efficient motor with constant magnets ensures reduction of reactive flow of anchor, improvement of magnetic flow distribution in external core, and, therefore, reduced noise and vibration.

6 cl, 11 dwg