ELECTRIC MACHINE Russian patent published in 2015 - IPC H02K21/12 H02K1/27 

FIELD: machine building.

SUBSTANCE: electric machine contains casing with laminated rotor core with slots for winding coils installation. In the cylinder cavity of the stator the rotor is installed with possibility of rotation, it includes shaft and inductor with external cylindrical surface containing alternating along the perimeter poles and permanent magnets fixed in slots of the inductor by the non-magnetic wedges. Between the shaft and inductor a bushing is installed, on it inductor is rigidly secured. End faces of the rotor are rigidly secured to the end face covers. The composite permanent magnets of similar height ate rigidly secured in ring clearances. Ring permanent magnets are rigidly secured above each other on walls of second and forth ring collars looking on the rotor axis of rotation. Electric machine casing is provided with shields.

EFFECT: increased service life of the electric machine, significant friction decreasing in bearings at increased and high rotational speed of the inductor.

3 cl, 2 dwg