发明名称 Magnetic core including magnet for magnetic bias and inductor component using the same
摘要 An inductor component according to the present invention includes a magnetic core including at least one magnetic gap having a gap length of about 50 to 10,000 mum in a magnetic path, a magnet for magnetic bias arranged in the neighborhood of the magnetic gap in order to supply magnetic bias from both sides of the magnetic gap, and a coil having at least one turn applied to the magnetic core. The aforementioned magnet for magnetic bias is a bonded magnet containing a resin and a magnet powder dispersed in the resin and having a resistivity of 1 Omega.cm or more. The magnet powder includes a rare-earth magnet powder having an intrinsic coercive force of 5 KOe or more, a Curie point of 300° C. or more, the maximum particle diameter of 150 mum or less, and an average particle diameter of 2.0 to 50 mum and coated with inorganic glass, and the rare-earth magnet powder is selected from the group consisting of a Sm-Co magnet powder, Nd-Fe-B magnet powder, and Sm-Fe-N magnet powder.
申请公布号 US6753751(B2) 申请公布日期 2004.06.22
申请号 US20010997066 申请日期 2001.11.29
申请人 NEC TOKIN CORPORATION 发明人 FUJIWARA TERUHIKO;ISHII MASAYOSHI;HOSHI HARUKI;ISOGAI KEITA;ITO TORU;AMBO TAMIKO
分类号 H01F27/25;H01F3/10;H01F3/14;H01F17/04;H01F29/14;(IPC1-7):H01F21/00 主分类号 H01F27/25
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