SQUIRREL-CAGE ROTOR Russian patent published in 2015 - IPC H02K21/46 H02K21/14 H02K17/16 F04D13/00 F04D15/00 

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, namely to electric machine industry, and can be used for creation of rotor from series-produced squirrel-cage rotor. The squirrel-cage rotor with permanent magnets has the laminated core covering the whole area of the rotor and having continuous rotor grooves in the longitudinal direction in which the squirrel-cage fills rotor grooves along the whole length of the core, and short-circuiting rings connect cage rods on both end face surfaces of the laminated core, meanwhile the radius of the rotor area is decreased by lathe machining, at least, by the radial thickness of permanent magnets. The rotor radius by lathe machining is decreased along the whole length between short-circuiting rings so that the radial height of the cage rods or the cage lattices connected to them is reduced. On the rotor the permanent magnets are installed. Besides, the invention relates to the electric motor with such rotor and to the centrifugal pump with such electric motor. The invention relates also to the method of manufacture of such rotor and to the method of control of the electric motor with such rotor.

EFFECT: rotor manufacture by easy method and low level of costs.

19 cl, 8 dwg