Title:
COMMON-MODE CHOKE COIL
Document Type and Number:
WIPO Patent Application WO/2020/255593
Kind Code:
A1
Abstract:
Provided is a common-mode choke coil that prevents loosening of winding and has superior mode conversion characteristics. The common mode choke coil comprises: a magnetic core (11); external electrodes (17); a pair of windings (15); and a magnetic plate (14). The magnetic core (11) has a winding core portion (12) and a pair of flange portions (13) provided at both ends of the winding core portion (12). The external electrodes (17) are formed on the flange portions (13). The windings (15) are wound around the winding core portion (12) and have ends thereof leading out to the external electrodes (17). The magnetic plate (14) is bonded to the pair of flange portions (13) with an adhesive. A region of the flange portions (13) from the winding core portion (12) toward mounting surfaces (21) includes a first region from a plane where the winding core portion (12) and the flange portions (13) intersect toward the mounting surfaces (21), and a second region spaced apart more from the winding core portion (12) than the first region, wherein the thickness of the first region is made smaller than the thickness of the second region.
Inventors:
YASUOKA YUJI
FUJITA TOMOHIRO
HIRAKA MASAHIRO
FUJITA TOMOHIRO
HIRAKA MASAHIRO
Application Number:
PCT/JP2020/019152
Publication Date:
December 24, 2020
Filing Date:
May 13, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01F17/04; H01F27/28; H01F27/29
Foreign References:
| JP2000150282A | 2000-05-30 | |||
| JP2012028684A | 2012-02-09 | |||
| JPH0444109U | 1992-04-15 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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