| 摘要 |
PURPOSE:To allow the characteristic of a bead core to be made the most of and to attain miniaturization by fitting the bead core to input/output terminals in a noise filter. CONSTITUTION:A choke coil 21 and a capacitor 22 are mounted on a board 24. Further a connecting terminal board 29 prolonged from the board 24 is connected to a terminal 28. Moreover, the terminal 28 is fitted to a screw thread formed at the inside face of the bead core 23 and tightened by a nut 27 through a washer 26. In this case, the assembly is fitted to a case 30 via insulating rings 25, 25'. Through the construction above, it is not necessary to provide a space for the arrangement of the bead core 23 on the board 24 and the bead core 23 and the terminal 28 are coupled directly, then the attenuation effect of high frequency noise is improved further. The characteristic of the bead core 23 of the noise filter is made the most of and also the miniaturization is attained. |
