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Title:
COMPOSITE COMMON-MODE COIL
Document Type and Number:
Japanese Patent JP2009176993
Kind Code:
A
Abstract:

To provide a composite common-mode coil whose leakage inductance magnitude can be changed and whose volume and manufacturing cost can be reduced.

The composite common-mode coil includes a bottom platform, a coil-onboard body, and an iron core. The bottom platform includes two installation baths and a separation bath. The separation bath is located between the two installation baths. The coil-onboard body includes two coil racks. A plurality of coils are wound on the outer rims of the coil racks. The two coil racks are each installed correspondingly in one of the installation baths. The iron core has two side surfaces mutually corresponding, located in the separation bath, and the side surfaces thereof are made adjacent to the coil racks. If electric currents each flow in the plurality of coils in the coil racks, the coil-onboard body forms a leakage inductance, and adjustment of the surface area of the side surfaces can change the leakage inductance magnitude.


Inventors:
YO SHINTAI
Application Number:
JP2008014717A
Publication Date:
August 06, 2009
Filing Date:
January 25, 2008
Export Citation:
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Assignee:
YU JING TECHNOLOGY CO LTD
International Classes:
H01F37/00; H01F29/10
Domestic Patent References:
JP2008005171A2008-01-10
JPS5660007A1981-05-23
JPH04127615U1992-11-20
Attorney, Agent or Firm:
Matsuji Takemoto
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Naohiko Teshima
Mitsuo Shiraishi