| 摘要 |
PROBLEM TO BE SOLVED: To provide an inductance element which can solve the problem raised by the conventional inductance element that, when a large current is made to flow to the element, a flat copper has to be wound in a coil-like shape, and accordingly, the size of the element becomes larger, winding work becomes difficult, wasteful spaces becomes larger and the size of the element becomes difficult to be reduced in the stereoscopic view of the element, and in addition, both ends of the coil must be twisted and the thinning work of the copper wire is restricted. SOLUTION: In the structure of the inductance element which is inserted in series into a current passage, the conductor section of the element is constituted in a bellows-like state by folding the flat conductor 1 a plurality of times, so that the current passage may become longer in length. In addition, a closed magnetic path composed of a magnetic body 2 wound around the conductor 1 is provided in the straight line portion 1-2 of each folded section.
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