COOLING DEVICE OF ROTARY ELECTRIC MACHINE Russian patent published in 2011 - IPC H02K9/16 H02K9/14 H02K1/20 

FIELD: electricity.

SUBSTANCE: housing (30) or rotary electric machine includes one inlet hole (31) and one outlet hole (32). Cooling device (15) in housing (30) includes circulating fan (12) and the first air circulation channel (51) and the second air circulation channel (52). In the first air circulation channel (51) the air received from inlet hole (31) flows down towards rotating shaft (10), moves near one of bearings, and then it is supplied to radial gap (24) in order to flow along axial direction, and flows through radial grooves and leaves outlet hole (32). In the second circulation channel (52) the air received from inlet hole (31) diverts from direction of movement to rotating shaft (10), moves from outer side of stator (20) in axial direction and then flows towards rotating shaft (10), moved near other bearings and then, it is supplied to radial gap (24) in order to be moved along axial direction, and flows through radial grooves and leaves outlet hole (32).

EFFECT: improving mass and dimensions parameters of rotary electric machine with its cooling device by installing this machine together with its auxiliary equipment in smaller space at maintaining cooling conditions of rotary electric machine.

7 cl, 3 dwg