| 摘要 |
PROBLEM TO BE SOLVED: To provide a concentrated winding coil adapted to a motor having high strand density and small size in the rotational shaft direction. SOLUTION: The section of a slit site 24, contained in the slot of the stator for the motor of a concentrated winding coil 20 obtained by winding strands 22, is formed in a substantially trapezoidal shape in response to the shape of the slot, and the section of the end region 26 bridging over the slit is formed in a substantially rectangular shape. In this case, the coil 20 is formed so that the sectional areas of the strands 22 become substantially same at any region and layer. Since the section of the site 24 is formed in response to the shape of the slit, the strand density of the motor can be increased. The sectional area of the site 26 is formed into a substantially rectangular shape, and hence the motor having smaller size in the rotational shaft direction than that of the substantially same trapezoidal shape as the section of the site 24 can be provided.
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