Patent ID: 8698585
Filing Date: 2014-04-15
Classification: H01F

Abstract:
1. A high power inductance device comprising a ferrite magnetic core and a winding wire wound around the ferrite magnetic core, and which is to be mounted on a heat radiation structure through at least one of front surfaces of the ferrite magnetic core, wherein the ferrite magnetic core comprises: a metal plate, and a plurality of ferrite cores having a completely-closed magnetic path structure or a quasi-closed magnetic path structure with a magnetic gap; the ferrite cores and the metal plate are arranged such that magnetic paths of the ferrite cores are parallel to each other, and such that the metal plate is between the ferrite cores in such a manner that planar faces of the metal plate are in an opposed confronting relation with the ferrite cores and at least one end of the metal plate is to be in an opposed confronting relation with the heat radiation structure; the winding wire is commonly wound around all the ferrite cores; and the inductance device is to be mounted such that at least one plane surface of peripheral surfaces of each of the ferrite cores is brought into direct or indirect contact with the heat radiation structure.