| 摘要 |
<p>PURPOSE:To obtain a small-sized, light-weight and unexpensive rotating-field coil device by winding a coil individually on each of several liquid-cooled bobbins while assembling the coils integrally by means of a connecting member. CONSTITUTION:Coil 4 having a lead wire 41 is wound on each of liquid-cooled bobbins 5 having a water supply port 51 and a drainage port 52. The coils 4 are connected with each other by a connecting section (connecting plate) 7 of a magnetic shield plate 6 arranged on the periphery of the coils 4 while the coils 4 are arranged so as to constitute integrally a hexagonal rotating-field coil. According to this arrangement, it is possible to increase the winding density and the conducted current by the liquid-cooled bobbins. Further, it is also possible to provide a rotating-field coil and to provide an effect of shielding a magnetic field by the connecting plate 7. Consequently, a very small-sized, light-weight and unexpensive rotating-field coil device can be realized.</p> |
