Title:
HIGH POWER INDUCTANCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/030531
Kind Code:
A1
Abstract:
Disclosed is a high power inductance device with a configuration which allows for inexpensive and easy production of large ferrite magnetic cores and improves the heat dissipation efficiency, suppressing increase of the core temperature. The inductance device is comprised of a ferrite magnetic core and a winding wire wound around the ferrite magnetic core, and at least one surface of the ferrite magnetic core is mounted on a heat dissipation structure. The ferrite magnetic core is composed of a core assembly obtained by juxtaposing a plurality of ferrite cores (10), which have completely closed magnetic circuit structures or quasi-closed magnetic circuit structures provided with magnetic gaps, so that the ferrite cores are arranged at intervals and the magnetic circuits are arranged in parallel. A metal plate (12) is inserted to each interval between the ferrite cores, and a common winding wire (14) is wound around all the ferrite cores. Each ferrite core is mounted on a heat dissipation structure (18) so that at least one of the outer peripheral surfaces of each ferrite core is in direct or indirect contact with the heat dissipation structure.
Inventors:
TAKIGUCHI, Takashi (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
瀧口 敬 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
KANAZAWA, Yuko (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
金澤祐子 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
瀧口 敬 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
KANAZAWA, Yuko (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
金澤祐子 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
Application Number:
JP2010/005455
Publication Date:
March 17, 2011
Filing Date:
September 06, 2010
Export Citation:
Assignee:
FDK CORPORATION (36-11, Shinbashi 5-chome Minato-k, Tokyo 77, 〒1058677, JP)
ＦＤＫ株式会社 (〒77 東京都港区新橋５丁目３６番１１号 Tokyo, 〒1058677, JP)
TAKIGUCHI, Takashi (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
瀧口 敬 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
KANAZAWA, Yuko (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
ＦＤＫ株式会社 (〒77 東京都港区新橋５丁目３６番１１号 Tokyo, 〒1058677, JP)
TAKIGUCHI, Takashi (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
瀧口 敬 (〒77 東京都港区新橋５丁目３６番１１号ＦＤＫ株式会社内 Tokyo, 〒1058677, JP)
KANAZAWA, Yuko (36-11 Shinbashi 5-chome, Minato-k, Tokyo 77, 〒1058677, JP)
International Classes:
H01F30/00; H01F27/24
Attorney, Agent or Firm:
SHIMIZU, Chiharu (3rd Floor, Nakagin-Honsha Bldg.16-10, Ginza 8-chom, Chuo-ku Tokyo 61, 〒1040061, JP)