| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic induction apparatus which can facilitate inspection during manufacturing, has high product reliability, is small, and can efficiently radiate heat from the winding and the core.SOLUTION: The electromagnetic induction device (transformer 100) of the present invention includes a core 14 forming a closed magnetic path, and a coil body 70 having a coil portion in which a plurality of metal members (plate-like metal members 18, 19) are connected by a printed wiring board 16. The coil portion has an insulating member 25 that insulates adjacent metal members from each other, and two end portions 18a, 18b (19a, 19b) of the metal member, which are inserted and connected to through holes 20 (22) of different element patterns, respectively, and the coil portion is circled around the core 14 by the number of metal members. The printed wiring board 16 is disposed at a position that does not contact the mounting surface of the cooler 17 on which the electromagnetic induction device is mounted.SELECTED DRAWING: Figure 1 |
