ASYNCHRONOUS ELECTRIC MACHINE ROTOR Russian patent published in 2021 - IPC H02K17/18 H02K1/22 H02K3/04 H02K3/28 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering. The rotor of an asynchronous electric machine contains a package of magnetic circuit plates with a straight, non-beveled, squirrel cage-type short-circuited rotor winding laid in its grooves, containing short-circuited washers permanently installed on both ends of it. The short-circuited winding of the rotor is made in two rows, in the form of internal and external rows, between which the magnetic core of the rotor is placed. The stator magnetic induction flux is closed in the rotor magnetic circuit, concentrating in the circuit formed by two rows of "squirrel cage" and short-circuiting washers, without leaving the part of the rotor where the shaft is located. The inner row of the short-circuited rotor winding is made in the form of a row of rods or from a single solid sleeve made of a conductive non-magnetic material. The number of rods in one row of its squirrel cage type short-circuited winding differs from the number of stator slots download by the number of pole pairs of an electric machine.

EFFECT: invention is aimed at improving the traction and overload capacity and increasing the starting torque of asynchronous electric machines.

2 cl, 6 dwg