| 摘要 |
PURPOSE:To improve reliability to an insulation property, a radiation property and fastening strength by a method wherein a coil is wound in a slot, liquefied resin varnish is impregnated and hardened, and powdered resin is filled in an opening portion of the slot and hardened. CONSTITUTION:The armature coil 5 is wound in the slot 3 of an armature core 2, and liquefied high molecular resin varnish having excellent permeability is impregnated to a winding portion 3b and hardened. Powdered high molecular resin is filled in an opening portion 3a of the slot, and an insulating layer 6 is formed. Thus, insulating performance is improved while a radiating property is increased, and the fastening strength of the coil 5 into the slot is heightened. |
