SUBMERGED MOTOR ROTOR Russian patent published in 2015 - IPC H02K1/27 H02K21/12 H02K15/03 

FIELD: electricity.

SUBSTANCE: invention pertains to the field of electric engineering, in particular to eclectic motors with permanent magnets used, for example, for submerged electric drive without formation fluid lifting. The motor rotor comprises a key-slotted shaft, the core pack made of electric steel plates with alternating poles, and each of them is formed by two V-mounted prismatic permanent magnets with tangential magnetism faced to the pole by its one polarity. The magnets are placed in slots of the pack plates and do not touch each other. The number of magnets is twice bigger than the number of poles. At inner surface of poles of both polarities there are slots along the pole axis.

EFFECT: improvement of the motor output performance due to scattering of magnetic flow at maintained rotor strength.

5 cl, 5 dwg