チョークコイルおよびそれを用いたノイズフィルタ

Japanese Patent JP7126567

B2

The purpose of the present invention is to provide a choke coil that prevents magnetic saturation of a magnetic core even when a large three-phase power supply current flows therethrough and that has a high noise reduction effect on normal mode noise and common mode noise.　This choke coil is provided with: a first magnetic core (150) provided with a first leg section (110), a second leg section (120), a third leg section (130), and connecting sections (140) connecting each of the ends of the three leg sections on both ends thereof; a second magnetic core (160) connecting the connecting sections of the first magnetic core to each other; U-phase windings (200); V-phase windings (210); and W-phase windings (220). A first U-phase winding, a first V-phase winding, and a first W-phase winding are wound around the first leg section (110) in this order from one end toward the other end thereof. A second W-phase winding, a second U-phase winding, and a second V-phase winding are wound around the second leg section (120) in this order from one end toward the other end thereof. A third V-phase winding, a third W-phase winding, and a third U-phase winding are wound around the third leg section (130) in this order from one end toward the other end thereof.

Yasuhiro Shiraki

JP2020565095A

August 26, 2022

January 10, 2019

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Mitsubishi Electric Corporation

H01F37/00; H01F27/24; H01F27/28; H03H7/09

JP2017084943A
JP2015164146A
JP2018535540A
JP11273975A
JP2007300700A
JP2007048897A
JP2001167948A

WO2017039090A1
WO2012157053A1

Parumo Patent Attorneys Office

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