| 摘要 |
<p>PURPOSE:To freely set a value of inductive reactance and outstandingly improve the working efficiency by providing a magnetic material belt havong a gap which can also be set freely between an internal coil and an external coil. CONSTITUTION:A magnetic material belt 5 for leakage flux which forms the leakage flux route with both ends opened is provided as the contact preventing plate of both coils between the internal (first) coil 3 and the external(second) coil 4. In case of forming a leakage flux path by opening both ends of the coils, a magnetic material belt 51 having the gap 6 for adjusting saturation of leakage flux including a freely set interval between the upper and lower materials is provided as the contact preventing plate of both coils. The gap 6 may be that obtained by growth of synthetic resin or may only be a space.</p> |
