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Title:
CHOKE COIL
Document Type and Number:
WIPO Patent Application WO/2013/018381
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a choke coil with which the mechanical strength of the core can be ensued easily with a simple construction which is neither an ER core nor an EE core. This choke coil is equipped with: an outer core which uses a dust core as the core material and is in the shape of a rectangular frame; a bobbin, with a coil wound thereon, which is mounted within the frame of the outer core; and a spindle-shaped inner core which serves as the magnetic core of the bobbin and has a central axis that is parallel to the winding axis direction of the coil. The inner core is inserted between the two opposing inner plane surfaces of the outer core such that the central axis of the inner core is in a direction perpendicular to these two plane surfaces.

Inventors:
ZHENG XIAOGUANG (JP)
OHASHI SHINGO (JP)
Application Number:
PCT/JP2012/051179
Publication Date:
February 07, 2013
Filing Date:
January 20, 2012
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
AUTONETWORKS TECHNOLOGIES LTD (JP)
ZHENG XIAOGUANG (JP)
OHASHI SHINGO (JP)
International Classes:
H01F37/00; H01F27/24; H01F27/255
Foreign References:
JPH0330305A1991-02-08
JP2008231443A2008-10-02
JPH0935965A1997-02-07
JPH01270306A1989-10-27
JP2006294787A2006-10-26
JP2009231495A2009-10-08
JP2006032559A2006-02-02
JP2006173356A2006-06-29
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
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