| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase the cross-section area of a coil and ensure an insulation distance without changing the outer diameter of the coil. SOLUTION: A transformer 1 has such a structure that a primary coil 3 and a secondary coil 4 are formed of an annular conductor plate and are laminated with an insulation member interposed, and a core 6 is inserted into the center of the coil. The respective annular conductor plates constituting the primary coil 3 and secondary coil 4 are provided with at least a pair of positioning projections 8 and 9 like a gear to position a coil against a core center 6a on their inner circumferences 3c and 4c. While the primary coil 3 and secondary coil 4 are laminated, the positioning projections 8 and 9 are arranged at such a position that they may be deviated with each other without facing.</p> |
