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Title:
INDUCTOR COMPONENT
Document Type and Number:
Japanese Patent JP2002313647
Kind Code:
A
Abstract:

To provide an inductor component with a permanent magnet which can be manufactured efficiently with a high mass-productivity without damaging magnetic bias characteristics.

The inductor component comprises an E-type lower soft-magnetic magnetic core 2a formed with a middle leg at the center, an E-type upper soft- magnetic magnetic core 2b formed with a middle leg at the center, and a square frame-like winding 3 and a U-shaped permanent magnetic la, which are held between the magnetic cores 2a and 2b. The square frame-like winding 3 is wound by attractive force around the square plate-like projecting parts of the E-type lower soft-magnetic magnetic core 2a and the E-type upper soft-magnetic magnetic core 2b to be built up as an exciting coil. By a magnetic field of the U-shaped permanent magnet 1a located near the E-type lower soft-magnetic magnetic core 2a and the E-type upper soft-magnetic magnetic core 2b, a DC magnetic bias is applied to a magnetic field generated by magnetomotive force by the square frame-like winding 3. The U-shaped permanent magnets 1a are cut out in pairs from square cut-out unit regions adjacently and continuously marked off in a magnet base material board, with as little-waste part left over as possible.


Inventors:
OKITA KAZUYUKI
SATO TADAKUNI
Application Number:
JP2001120637A
Publication Date:
October 25, 2002
Filing Date:
April 19, 2001
Export Citation:
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Assignee:
NEC TOKIN CORP
International Classes:
H01F37/00; H01F19/08; (IPC1-7): H01F37/00; H01F19/08
Domestic Patent References:
JPS59139613A1984-08-10
JPH10308316A1998-11-17
JPH0191405A1989-04-11
JPH0696926A1994-04-08
JPS6332903A1988-02-12
JPH05190311A1993-07-30
JPS62282418A1987-12-08
JPH07122418A1995-05-12
Attorney, Agent or Firm:
Yosuke Goto (2 outside)



 
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