发明名称 |
Magnetic core having magnetically biasing bond magnet and inductance part using the same |
摘要 |
A magnetic core having excellent DC superposition characteristics and core-loss characteristics is provided. The magnetic core comprises a magnetically biasing magnet disposed in a magnetic gap thereof to provide a magnetic bias from opposite ends of the magnetic gap to the core. The said magnetically biasing magnet comprises a bond magnet which comprises rare-earth magnetic powder and a binder resin. The rare-earth magnetic powder has an intrinsic coercive force of 5 kOe or more, a Curie temperature Tc of 300° C. or more, specific resistance of 0.1 OMEGA.cm or more, residual magnetization Br of 1000 to 4000 G and coercive force bHc of a B-H curve of 0.9 kOe or more.
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申请公布号 |
US6590485(B2) |
申请公布日期 |
2003.07.08 |
申请号 |
US20010996048 |
申请日期 |
2001.11.28 |
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;H01F1/055;H01F3/10;H01F3/14;H01F17/04;H01F29/14;(IPC1-7):H01F1/18 |
主分类号 |
H01F27/25 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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