Title:
COMMON-MODE CHOKE COIL
Document Type and Number:
WIPO Patent Application WO/2017/221630
Kind Code:
A1
Abstract:
The present invention provides an air-cooled common-mode choke coil provided with a bobbin shape capable of suppressing heat generation. The air-cooled common-mode choke coil 10 according to the present invention is obtained by housing an annular core 30 in an annular bobbin 20, and a coil 40 is wound around the outer circumference of the bobbin 20, wherein an air channel A capable of channeling an airflow B is formed between the bobbin 20 and the core 30, the bobbin 20 has one or a plurality of openings 21, 22 communicating with the air channel A, and flanges 23, 24 are provided in a projecting manner on the peripheral edge of the opening 21, 22. The opening 21, 22 is preferably formed across the outer circumferential surface and the upper and lower surfaces of the bobbin 20.
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| JPH04334005 | LIGHTING FIXTURE |
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Inventors:
IMANISHI TSUNETSUGU (JP)
TAKAHASHI YASUOMI (JP)
TAKAHASHI YASUOMI (JP)
Application Number:
PCT/JP2017/019642
Publication Date:
December 28, 2017
Filing Date:
May 26, 2017
Export Citation:
Assignee:
SHT CORPORATION LTD (JP)
International Classes:
H01F37/00; H01F27/24
Foreign References:
| JPS51116929A | 1976-10-14 | |||
| JP2004342749A | 2004-12-02 | |||
| JPH11186060A | 1999-07-09 | |||
| JPH01153606U | 1989-10-23 | |||
| JP2012004258A | 2012-01-05 | |||
| JP2015207612A | 2015-11-19 | |||
| JP2012059754A | 2012-03-22 |
Other References:
See also references of EP 3474301A4
Attorney, Agent or Firm:
MARUYAMA & CO. (JP)
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