FIELD: machine building.
SUBSTANCE: invention relates to electric machine engineering. Electric machine comprises stator core with winding, bearing shields and rotor with shaft. Core is assembled from sheets of electrical steel. In its back there are sealed axial channels interconnected by means of collectors used for supply and discharge of liquid cooled in external heat exchanger. Channels are sealed by filling gaps between electrical steel sheets with a compound, glue and/or by placing tubes in said channels. Tubes are made from electrically insulating, and/or magnetically conductive material, and/or from metal with their insulation from electrotechnical steel sheets and collectors. Gaps between tubes and sheets can be filled with heat-conducting compound or glue, in particular, by technology of drop impregnation.
EFFECT: improvement of stator cooling at simultaneous reduction of losses in it.
16 cl, 2 dwg
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