Title:
COMPOSITE MAGNETIC CORE AND MAGNETIC ELEMENT
Document Type and Number:
WIPO Patent Application WO/2014/017512
Kind Code:
A1
Abstract:
Provided are a composite magnetic core with excellent direct-current bias current characteristics that is able to use a magnetic powder with poor formability in the desired shape, as well as a magnetic element in which a coil is wound around this composite magnetic core. A compressed magnetic object (2), which is obtained by compression-molding a magnetic powder, and an injection-molded object (3), which is obtained by compounding and injection-molding a binder resin in a magnetic powder having an electrically insulating surface, are press-fitted in a joining unit or adhered to each other to obtain a conjugate, this conjugate is used as a housing for the injection-molded magnetic object, and the compressed magnetic object is arranged inside this housing.
Inventors:
UEMOTO IKUO (JP)
MIYAZAKI SHINJI (JP)
HARANO TAKUJI (JP)
MIYAZAKI SHINJI (JP)
HARANO TAKUJI (JP)
Application Number:
PCT/JP2013/069998
Publication Date:
January 30, 2014
Filing Date:
July 24, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H01F27/24; H01F27/255; H01F41/02
Domestic Patent References:
| WO2006022262A1 | 2006-03-02 |
Foreign References:
| JPH0613243A | 1994-01-21 | |||
| JP2002057039A | 2002-02-22 | |||
| JP2006332245A | 2006-12-07 | |||
| JP2005093962A | 2005-04-07 | |||
| JP2004207552A | 2004-07-22 | |||
| JP4763609B2 | 2011-08-31 | |||
| JPH0555061A | 1993-03-05 | |||
| JP2001332411A | 2001-11-30 |
Other References:
See also references of EP 2879139A4
Attorney, Agent or Firm:
WAKI, Misao et al. (JP)
Wake 操 (JP)
Wake 操 (JP)
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