DEVICE FOR REDUCING TEMPERATURE DIFFERENCE IN THE CIRCUMFERENCE BETWEEN WINDING AND IRON CORE OF LARGE DIAMETER ELECTRIC MACHINE Russian patent published in 2023 - IPC H02K1/20 H02K5/20 

FIELD: electrical engineering.

SUBSTANCE: device designed to reduce the temperature difference around the circumference between the winding and the iron core of an electric machine, related to the field of wind turbines, containing a rotor frame, a rotor core and several rotor plates made of magnetic steel, characterized in that the device additionally contains several segments of the stator core, the first clamping plate of the core, the second clamping plate of the core and a tie bolt, moreover, several segments of the stator core connected to the first annular plate, the inner wall of which is connected to at least three axial vertical plates, and the outer wall of which is connected to the first vertical plate and the second vertical plate, between which a second circumferential plate is fixed, formed by stacking silicon electrical steel sheets, which are equipped with a groove. The first vertical plate is connected to the inclined wind deflector through a plurality of connection plates, and the air volume adjusting plate is provided with an air inlet.

EFFECT: increasing the uniformity of the air flow, the possibility of adjusting the area of various air inlets and reducing the temperature difference around the circumference of the electric machine.

5 cl, 5 dwg