COOLING THE ACTIVE PIECE OF THE ELECTRIC MACHINE Russian patent published in 2018 - IPC H02K9/22 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to the rotor of an electrical machine. Rotor comprises at least two teeth having a magnetic permeable material, at least one winding groove located between the teeth, the groove being located along the rotation axis of the rotor. Electrical winding is located in the winding groove. Rotor comprises at least one open recess, located in the tooth in a plane covered by a substantially radial direction and a direction substantially along the axis of rotation, and at least one heat-conducting element disposed in a respective open recess and having a heat-conducting material, whose thermal conductivity is greater than the thermal conductivity of the magnetically permeable material. Tooth has a lateral surface facing the winding groove, and the first open notch is located on the lateral surface of the tooth. Winding groove is designed to be closed in a radial direction by a wedge.

EFFECT: technical result is improvement of cooling.

13 cl, 5 dwg