| 摘要 |
<p>In the rotor structure of a synchronous motor of the radial type having a shaft (12) composed of a magnetic material and in which rotor core members (20) are held by magnets (18), the magnetic shaft (12) causes a leakage of fluxes during its magnetization or the rotation of the rotor, thereby degrading the magnetizing property and output performance. Therefore, the leakage of magnetic flux is decreased by decreasing the diameter of a shaft portion (12a) that faces the inner surface of the rotor body (10). The decrease in the resistance of the shaft (12) to bending is compensated for by filling the gap between the rotor body (10) and the shaft portion (12a) with a resin material (22) and by forming a knot (24).</p> |
