| 摘要 |
PURPOSE:To reduce an air gap without narrowing an interval between a stator yoke and a rotor by superposing and winding a strip-shaped copper wire and a strip-shaped iron wire, shaping them so that the side end collecting surfaces become arcuate, and securing them to the inner periphery of a stator yoke. CONSTITUTION:A winding 6 is formed by superposing a strip-shaped copper wire 7 of flat section coated with an insulating film 7a and a strip-shaped iron plate 8 having the same width as the wire or slightly wider width, and densely winding spirally in the longitudinal direction to have parallel superposed portion 9 of the prescribed length in one direction. The winding 6 is shaped so that the side end collecting surfaces becomes arcuate of the prescribed curvature in the direction perpendicular to the longitudinal direction of the parallel superposed portion 9, thereby oppositely securing via a small gap (g) to the outer periphery of the rotor 2 at the prescribed inner position of a stator yoke 5. Thus, the air gap can be substantially narrowed. |
