| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inductance element for miniaturization, weight reduction and price-reduction by improving damping characteristic in a low frequency band by lowering self resonance frequency of the inductance element without changing material of a magnetic core, outside dimension and the number of turns of a coil, etc. <P>SOLUTION: In a structure of the inductance element, the whole magnetic core 15 is covered with an insulating case 16, conductors 19a and 19b are arranged at two points of an outer peripheral surface of the insulating case 16, respectively. While one dielectric material 21a is so arranged as to cover the upper surface of the periphery of both the conductors 19a and 19b, coils 17 and 18 are formed by winding coated wires symmetrically on a semicircle portion of the periphery on the outside of the dielectric material so as to surround the conductors 19a and 19b, respectively. The conductor 19a and the coil 17 are electrically connected at a connection part 20a, and the conductor 19b and the coil 18 are electrically connected at a connection part 20b. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
