Patent ID: 8598974
Filing Date: 2013-12-03
Classification: H01F

Abstract:
1. A coil filter comprising: a core member including a front portion, a rear portion, an upper portion, a bottom portion, a first end portion, and a second end portion, and including a first end member extended from said first end portion of said core member, and including a second end member extended from said second end portion of said core member, said first end member including a front protrusion located at said front portion of said core member, a rear protrusion located at said rear portion of said core member, and at least one middle protrusion extended upwardly beyond said core member and located between said front and said rear protrusions for forming two notches between said front and said rear and said at least one middle protrusions, said front protrusion including a width (W) greater than that of said rear protrusion and said at least one middle protrusion, said second end member including a rear projection located at said rear portion of said core member, a front projection located at said front portion of said core member, and at least one middle projection extended upwardly beyond said core member and located between said front and said rear projections for forming two spaces between said front and said rear and said at least one middle projections, said rear projection including a width (T) greater than said width (t) of said front projection and said middle projection, and a coil member wound and engaged onto said core member and disposed and arranged between said first and said second end members.