| 摘要 |
<p>PURPOSE:To obtain a transformer in which a space and a creeping distance satisfying the safety regulations are ensured between the windings while having a structure for realizing reduction in size. CONSTITUTION:At least one of primary winding 16A, 16B and secondary winding 17A, 17B is formed of an insulating wire applied with a plurality of layers of insulating coating. A bobbin 10 comprises a main bobbin part 11, an auxiliary bobbin part 12, and an intermediate flange part 14. The primary winding 16A, 16B and the secondary winding 17A, 17B are wound about the main bobbin part 11 while being overlapped in the radial direction of the bobbin 10. A part of the primary or secondary winding 16A, 16B or 17A, 17B or other winding 18 having small number of turns is wound about the auxiliary bobbin part 12. The lead out part 16a, 16b or 17a, 17b of the primary or secondary winding 16A, 16B or 17A, 17B made of the wire applied with a plurality of layers of insulation coating is led out through the auxiliary bobbin part 12 to a terminal pin 8A, 8B and soldered H thereto at the forward end thereof.</p> |
