Invention Grant
US07960878B2 Electric rotating machine with means for feeding cooling liquid to its stator winding 有权
电动旋转机具有将冷却液供给其定子绕组的装置

Electric rotating machine with means for feeding cooling liquid to its stator winding
Abstract:
The electric rotating machine includes a rotor, a stator having a stator core and a stator winding wound on the stator core, and a cooling liquid feeding function of applying cooling liquid to the coil end of the stator winding. The stator winding constituted by coils wound along the circumferential direction includes crossover portions each of which electrically connects the ends of two of the coils through which currents in the same phase flow, respectively. The crossover portions are arranged so as to overlap one another only partially in the circumferential direction. The cooling liquid feeding function applies the cooling liquid to at least one of the crossover portions.
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