| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent core crack of a transformer itself in a power source operation due to a temperature change cycle by raising a fracture resistant strength including a drop countermeasure, sufficiently drawing performance of a ferrite core, an constituting it in a small size and light weight. SOLUTION: To constitute a transformer of a winding part 3 having a through hole for winding primary and secondary sides, a bobbin 2 for integrally forming a primary side winding fixed part with a secondary side winding fixed part and a magnetic core 1, first adhesive 4 and second adhesive 5 having different hardnesses are used to adhere among the core 1, the primary side fixed part and the secondary side fixed part.</p> |
