发明名称 |
COMPOSITE MAGNETIC CORE AND MAGNETIC ELEMENT |
摘要 |
The present invention provides a composite magnetic core, containing magnetic powders poor in its moldability, which can be configured arbitrarily and has a magnetic characteristic excellent in direct current superimposition characteristics and a magnetic element composed of the composite magnetic core and a coil wound around the circumference thereof. A compressed magnetic body (2) obtained by compression-molding magnetic powders is combined with an injection-molded magnetic body (3) obtained by mixing a binding resin with magnetic powders having surfaces thereof electrically insulated and by injection-molding a mixture of the magnetic powders and the binding resin. The compressed magnetic body (2) is press-fitted into the injection-molded magnetic body (3) or bonded thereto at a combining portion thereof to obtain the combined body. The combined body is composed of the injection-molded magnetic body (3) constituting a housing in which the compressed magnetic body (2) is disposed. |
申请公布号 |
US2015179323(A1) |
申请公布日期 |
2015.06.25 |
申请号 |
US201314417095 |
申请日期 |
2013.07.24 |
申请人 |
NTN CORPORATION |
发明人 |
Uemoto Ikuo;Miyazaki Shinji;Harano Takuji |
分类号 |
H01F3/08 |
主分类号 |
H01F3/08 |
代理机构 |
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代理人 |
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主权项 |
1. A composite magnetic core comprising a combined body of a compressed magnetic body, obtained by compression-molding magnetic powders, which is combined with an injection-molded magnetic body obtained by mixing a binding resin with magnetic powders having surfaces thereof electrically insulated and by injection-molding a mixture of said magnetic powders and said binding resin,
wherein said injection-molded magnetic body constitutes a housing, and said compressed magnetic body is disposed inside said housing. |
地址 |
Osaka JP |