Line filter

摘要

PCT No. PCT/JP95/02246 Sec. 371 Date Jun. 26, 1996 Sec. 102(e) Date Jun. 26, 1996 PCT Filed Nov. 2, 1995 PCT Pub. No. WO96/14643 PCT Pub. Date May 17, 1996The present invention relates to a line filter that is characterized by suppressing magnetic adverse effects inflicted on other components due to leakage magnetic fluxes from the closed magnetic circuit core used in the line filter and at the same time preventing noises from infiltrating into the closed magnetic circuit core. The line filter comprises a synthetic resin made bobbin (5) having flanges (2) on its both ends and a through hole (20) along its axis, a square shaped closed magnetic circuit core (1) with one of its magnetic legs inserted in the through hole (20) of the bobbin (5), windings (6) wound between both flanges (2) of the bobbin (5) in the direction perpendicular to the bobbin's axis, metal terminals (9) embedded in the flanges (2) and connected with the windings (6) and a wobbling preventive means to prevent the closed magnetic circuit core from wobbling.