| 摘要 |
PURPOSE: A magnetic core including a permanent magnet is provided to reduce costs by supplying magnetic bias from both sides of the gap to the magnetic core including at least one gap in a magnetic path. CONSTITUTION: A core(39) used in the inductor component is made of a MnZn ferrite material and constitutes an EE type magnetic core having a magnetic path length of 2.46cm and an effective cross-sectional area of 0.394cm. The thin plate magnet(43) having a thickness of 0.16mm is processed into the same shape with the cross-section of the central leg of the E-type core(39). A molded coil(41) is incorporated in the E-type core(39), the thin plate magnet(43) is arranged in a core gap portion, and is held by the other core(39) and, therefore, this assembly functions as an inductor component. The direction of the magnetization of the thin plate magnet(43) is specified to be reverse to the direction of the magnetic field made by the molded coil.
|
