STATOR OF ELECTRICAL MACHINE AND UNIT OF ITS OUTER RING FIXATION Russian patent published in 2013 - IPC H02K3/50 H02K1/20 

FIELD: electricity.

SUBSTANCE: proposed stator of an electrical machine comprises a laminated core (1), in the back of which there are ventilation channels (6). In a basket (7) of head parts of the winding there are passages (8). Head parts of the winding are placed between inner (9) and outer (10) rings. Between the outer ring (10) and the basket (7) of head parts of the winding there are radial ribs (11), and cavities (12) are produced. On ribs (11) there are head parts of the winding. Channels 6 communicate with cavities (12). In the inner ring (9) there are ventilation holes (13), in the outer ring (10) - ventilation holes (14). The outer ring (10) is fixed on the stator body (2) with the help of pins (15) with threaded ends. At one end of the pin (15) there is a nut (16), fixed on the body (2), and the other end via a bushing (17) is connected to the specified outer ring (10).

EFFECT: increased efficiency of electrical machine stator cooling and reduced vibration of head parts of a stator winding.

2 cl, 1 dwg