| 摘要 |
<p>PURPOSE:To simplify an insulating composition and to miniaturize and make light-weight a whole device by pile-arranging a hourglass shape insulating bobbin in a periphery of a primary side coil and by composing the secondary coil through winding a coil on each insulating bobbin. CONSTITUTION:A plural hourglass shape insulating bobbins having inside diameter wider than an outer diameter of the primary coil 2 and coil supporting materials 6a and 6b are piled up and arranged between both plates 3a and 3b in a periphery of the primary coil 2. Each coil 9 is wound on this each insulating bobbin 8. The secondary coil 10 in a split state is composed of each whole coil 9.</p> |
