Patent ID: 9698653
Date: 2017-07-04
CPC Classifications: F03D,F05B,H02K,Y02E,Y02T

Claim:
1. A wind turbine electrical generator cooling arrangement, comprising: a rotor; a stator including a plurality of stator segments, each stator segment including a plurality of stacked-laminate plates, the plurality of stacked-laminate plates contain a plurality of slots at a first side of the plurality of stacked-laminate plates, the first side of the plurality of stacked-laminate plates is aligned to the rotor and the plurality of slots support a metal-winding of a stator coil; a plurality of hollow-cooling pipes, each of the plurality of hollow-cooling pipes is dedicated to one of the plurality of stator segments and each of the plurality of hollow-cooling pipes is partly integrated into the plurality of stacked-laminate plates of the dedicated stator segment in order to cool the plurality of stacked-laminate plates by a cooling-medium, which is located in each hollow-cooling pipe; and a plurality of heat exchangers, each of the plurality of heat exchangers is connected with only one of the plurality of hollow-cooling pipes of the dedicated stator segment by a respective input-connection and an output connection; wherein each partly integrated cooling pipe is disposed such that a thermal exchange between the dedicated stator segment and the cooling pipe is allowed, wherein each partly integrated hollow-cooling pipe is located on a second side of the plurality of stacked-laminate plates, wherein the second side is opposite to the first side, and wherein each partly integrated cooling pipe is exposed from the plurality of stacked-laminate plates along the second side in a longitudinal direction, wherein each partly integrated cooling pipe is partly integrated into the plurality of stacked-laminate plates along a longitudinal direction.