| 摘要 |
FIELD: electric engineering, possible use for engineering asynchronous electric machines with short-circuited rotor. ^ SUBSTANCE: the rotor includes magnetic conductor with a yoke, a short-circuited winding, ventilation blades, short-circuiting ring, rods, ribs and stator. In accordance to the invention, ventilation blades are made current-conductive in form of several current-conductive, vertically mounted rods, connected to one short-circuiting ring of magnetic conductor, while upper part of current conductive ventilation blades is wedge-shaped, narrowing towards the working air gap and having cross-section area which is equal to or greater than the area of cross-section of current-conductive rod of magnetic conductor. Ventilating current-conductive blades may be installed according to two variants: in the first variant - vertically along internal and external diameters of short-circuiting ring of magnetic conductor, and in the second variant - vertically only along the internal diameter of short-circuiting ring of magnetic conductor, or only along external diameter of short-circuiting ring of magnetic conductor with possible passage of electric current through vertically mounted current-conductive rods of aforementioned blades along their whole height. The short-circuiting ring is installed on the side which is opposite to working air gap and positioned along the internal diameter of magnetic conductor, and ribs of ventilating current-conductive blades are installed on one short-circuiting ring. ^ EFFECT: reduced metal consumption and increased operational reliability of rotor. ^ 3 cl, 3 dwg |
