| 摘要 |
The present invention provides a coil device including magnetic cores having gap regions and a coil wound to contain the gap regions. The present invention provides an improvement in which a shape of at least one of the opposing magnetic cores forming the gap regions is formed into a curve of logarithmic function from its base end to its extreme end, its most extreme end is provided with a gap adjusting flat surface and then a plurality of gaps are formed in the gap regions. With such an arrangement as above, the present invention provides the coil device capable of reducing a leakage magnetic flux produced around the gaps, preventing an abnormal generation of heat of the coils and further preventing a bad influence of noise against a peripheral apparatus.
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