| 摘要 |
PURPOSE:To enhance the cooling effect of a coil end by providing a vent passage forming member at the fixing part when the coil end is fixed and flowing cooling air to the fixing part. CONSTITUTION:A spacer 4 is interposed between two coil ends 2, a plurality of rod-shaped spacer pieces 5 are aligned in parallel as vent passage forming members and wound around the spacer 4. The pieces 5 are disposed so that vent passages 13 are not closed by impregnating resin in the later steps by selecting the thickness and the interval of the pieces 5. The passages 13 are formed at the pieces 5 between an insulating layer 11 and a stationary binding unit 3, thereby enhancing the heat cooling property of the coil end fixing part. |
