| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic circuit component capable of efficiently reducing AC resistance of a coil in a state mounted with a winding.SOLUTION: A coil 1 has a conductor 2 of a rectangular wire, the surface of which is coated with an insulation film 3, the conductor 2 being wound thereon. Magnetic materials 4a-4d of a soft magnetic material are applied, as a magnetic material part 4, over the surfaces including an upper face, a lower face, an outer peripheral surface and an inner peripheral surface of the coil 1 which has a cylindrical shape. Since the wound conductor 2 constituting the coil 1 generates a magnetic flux due to proximity effect not on the conductor 2 but on the surface of the coil 1, the loss of the magnetic flux due to eddy current is reduced by efficiently disposing the magnetic material part 4 thereon.SELECTED DRAWING: Figure 1 |
