| 摘要 |
PURPOSE:To easily enable the end section of a field winding to be protected, by convering a coil end section with a coil retaining ring, and by pressing the coil retaining ring to the coil end with the injection of pressure-applied resin. CONSTITUTION:A coil end section is covered with a coil retaining ring 3 molded with glass bind resin. After that, resin liquid is pressure-injected with a high pressure injector 5 through an injection hole. When the resin liquid is spread on the whole priphery through a groove 7, the liquid oozes out between the coil retaining ring 3 and a filed winding 8. The coil retaining ring 3 is fitted on the coil end by the pressure of the resin liquid. |
