| 摘要 |
PROBLEM TO BE SOLVED: To form an insulator into a shape that does not cause unwinding of coils. SOLUTION: On each core covered with two pieces of insulators, coils are wound in multiple layers parallel in the direction of the axis of rotation on both side surfaces of a tooth and in a tilting state at one end surface of the tooth. The insulators are each provided with an end surface covered part that contacts the end surface of the core, a base side protruding part and overhanging part side protrusion that are provided protrusively at the opposite side of the core from the end surface covered part corresponding to the base and the overhanging part. The top surface of the tooth end surface covered part that contacts the tooth of the end covered part is formed on a plane parallel to the tooth end surface. Grooves that guide the coils on both side surfaces of the tooth end surface covered part in the axial direction of rotation are provided in the pitch of coil diameter. COPYRIGHT: (C)2004,JPO
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