Title:
COMMON-MODE CHOKE COIL FOR THREE PHASES
Document Type and Number:
Japanese Patent JP2023178762
Kind Code:
A
Abstract:
To provide a common-mode choke coil for three phases allowing high output and high attenuation of noise further than the prior arts.SOLUTION: A common-mode choke coil for three phases comprises: six cores C1, etc., in the same shape, each including a winding shaft 1 around which a coil is wound, a common shaft 2, and a top face 3 connecting an end of the winding shaft 1 with an end of the common shaft 2, the cores C1, etc., being oppositely disposed three by three in such a manner that the end of each winding shaft 1 connected to the top face 3 and an opposite end are abutted to each other and the end of each common shaft 2 connected to the top face 3 and an opposite end are abutted to each other, respectively; a bobbin; and three coils wound around the abutted winding shafts 1 via the bobbin. When a current flows to each coil, magnetic flux M is generated as one continuous closed loop passing the inside of each winding shaft 1, the inside of each top face 3, and the inside of each common shaft 2. Common-mode inductance and normal-mode inductance which should be provided as the common-mode choke coil for three phases, are generated by the closed-loop-shaped magnetic flux M.SELECTED DRAWING: Figure 1
Inventors:
SATAKE YUUKI
SATO TSUTOMU
SATO TSUTOMU
Application Number:
JP2022091645A
Publication Date:
December 18, 2023
Filing Date:
June 06, 2022
Export Citation:
Assignee:
CKS CO LTD
TMP CO LTD
TMP CO LTD
International Classes:
H01F37/00; H01F5/02
Attorney, Agent or Firm:
Patent Attorney Corporation Intect International Patent Office
Oku Wako
Mikawa Ltd.
Oku Wako
Mikawa Ltd.