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Patent Searching and Data


Title:
COIL COMPONENT CORE AND COIL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2018/185989
Kind Code:
A1
Abstract:
[Problem] To provide a coil component core having a structure capable of achieving both high DC superposition characteristics and suppression of leakage magnetic flux. [Solution] A coil component core 30 comprises an annular core body 10 having a magnetic gap 15, and a gap core 20 disposed in the magnetic gap 15. The average value of the relative permeability in the entire space of the magnetic gap 15 is lower than the relative permeability of the core body 10. The gap core 20 has a first portion 21 having a relative permeability higher than the average value, and the first portion 21 is disposed at least in a portion of a peripheral section of the magnetic gap 15.

Inventors:
OTSUKA Tsutomu (31-1, Miyajima, Uematsu, Natori Cit, Miyagi 26, 〒9811226, JP)
Application Number:
JP2018/000396
Publication Date:
October 11, 2018
Filing Date:
January 11, 2018
Export Citation:
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Assignee:
SUMIDA CORPORATION (Harumi Island Triton Square Office Tower X 14/F, 1-8-10 Harumi Chuo-K, Tokyo 47, 〒1048547, JP)
International Classes:
H01F27/24; H01F37/00
Foreign References:
JPH04184908A1992-07-01
JP2011130595A2011-06-30
JP2016025273A2016-02-08
JPH05114520A1993-05-07
JP2002164232A2002-06-07
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