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Patent Searching and Data


Title:
CHIP INDUCTOR
Document Type and Number:
WIPO Patent Application WO/2019/102726
Kind Code:
A1
Abstract:
This chip inductor 100 is provided with: a magnetic core 30 provided with a compacted molding 31 containing a magnetic powder; a coil 10 which is embedded in the magnetic core 30; a pair of terminal plates 20, 25 which extend from both ends of the coil 10 and are positioned on a first surface 30A of the magnetic core 30; and a pair of coating electrodes 40, 45 which are respectively electrically connected to the pair of terminal plates 20, 25, and which include a portion positioned on a part of the first surface 30A. The surface resistance of a first core material configuring the compacted molding 31 positioned in a separation region SA between the pair of coating electrodes 40, 45 on the first surface 30A is higher than the surface resistance of a second core material configuring the compacted molding 31 positioned on a second surface 30E which is a surface opposing the first surface 30A of the magnetic core 30 and on which the pair of coating electrodes 40, 45 are not disposed. The chip inductor 100, even when reduced in size, is not prone to cause a discharge.

Inventors:
KOJIMA AKINORI (JP)
SATO KEIICHIRO (JP)
IMAI SEISAKU (JP)
SATO AKIRA (JP)
ARAKI KEIICHI (JP)
Application Number:
PCT/JP2018/037361
Publication Date:
May 31, 2019
Filing Date:
October 05, 2018
Export Citation:
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Assignee:
ALPS ALPINE CO LTD (JP)
International Classes:
H01F17/04; H01F27/24; H01F27/255; H01F27/29; H01F41/02
Foreign References:
JP2003168610A2003-06-13
JP2017011042A2017-01-12
JP2012004292A2012-01-05
JPH08181029A1996-07-12
JPH07288210A1995-10-31
JP2016076559A2016-05-12
JP2015204337A2015-11-16
Attorney, Agent or Firm:
OKUBO, Katsuyuki (JP)
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