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Patent Searching and Data


Title:
COIL STRUCTURE AND POWER CONVERTER
Document Type and Number:
Japanese Patent JP2015195358
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technique which can implement high design flexibility concerning occurrence position of leakage inductance and easily adjust the magnitude of the leakage inductance.SOLUTION: A coil structure 100 has a magnetic core 200 forming a closed loop CLP in which a magnetic flux flows, a coil portion 300 which surrounds a coil axis CA extending in a first direction and generates a magnetic flux, a bypass member 400 which is formed separately from the magnetic core and bypasses a part of the magnetic flux flowing in the closed loop, and a fixing portion 500 for fixing the bypass member. The magnetic core contains a core leg 210 inserted in the coil portion. The bypass member defines a bypass magnetic path DMP for bypassing the closed loop. The fixing portion fixes the first positional relationship between the core leg and a first point, and the second positional relationship between the core leg and a second point. The bypass member contains a first piece defining the first point and a second piece defining the second point. The fixing portion contains an adjacent member disposed adjacently to the core leg, and a connection portion for connecting the first piece and the second piece to the adjacent member.

Inventors:
KATO AKIRA
SAKIYAMA KAZUYUKI
ICHIHASHI HIROHIDE
Application Number:
JP2015045432A
Publication Date:
November 05, 2015
Filing Date:
March 09, 2015
Export Citation:
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Assignee:
PANASONIC IP MAN CORP
International Classes:
H01F27/38; H01F3/12; H01F27/24; H01F30/00; H02M3/28
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Kohei Watanabe