CONTACTLESS DC MOTOR Russian patent published in 2010 - IPC H02K29/00 H02K57/00 

FIELD: electrical engineering.

SUBSTANCE: contactless DC motor is proposed, which comprises stator and rotor separated from each other by means of air gaps, where stator consists of two diametrically opposite coils produced from internal windings, which are connected to external source of DC voltage, and from external windings connected to winding of control current source armature, through which concave flat permanent magnets, being arranged as two diametrically opposite and installed between external nonmagnetic and internal ferromagnetic rotor rings may freely pass through, northern poles of which are tightly pressed by the first ring, and southern ones - tightly glued to surface of the second rotor ring, which may freely move around circle on four rollers and which is connected via two friction reducers with central nonmagnetic wheel, on axis of which there is DC source inductor installed as cruciform and made of four permanent magnets and ferromagnetic cylinder.

EFFECT: simplified design of contactless DC motor, its improved reliability and prolonged resource of operation, reduced prime cost.

2 dwg