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Title:
INVERTER DEVICE AND ELECTRIC COMPRESSOR EQUIPPED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2023/228640
Kind Code:
A1
Abstract:
[Problem] To provide an inverter device capable of effectively, without any difficulty, reducing noise caused by common mode currents flowing out from a motor and a housing. [Solution] An inverter device 16 comprises a three-phase inverter circuit 34 composed of switching elements 18, wherein the inverter circuit 34 drives a motor 8. The inverter device 16 further comprises a common mode coil 66 inserted in a three-phase output unit of the inverter circuit 34, wherein the common mode coil 66 has three U-, V-, W-phase wires 66U, 66V, 66W that are trifilar-wound around a core. The inverter device 16 is housed in an inverter housing portion 6 of a housing 2 of an electric compressor 1.

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Inventors:
TAKADA KOHEI (JP)
YOSHIDA HIROSHI (JP)
KOBAYASHI KOJI (JP)
Application Number:
PCT/JP2023/015930
Publication Date:
November 30, 2023
Filing Date:
April 21, 2023
Export Citation:
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Assignee:
SANDEN CORP (JP)
International Classes:
H02M7/48; H01F37/00
Foreign References:
JP3466118B22003-11-10
JP2004273490A2004-09-30
JP2022061801A2022-04-19
JP2022051274A2022-03-31
Other References:
TAIKI KAI, TOHLU MATSUSHIMA, YUKI HUKUMOTO, KOJI KOBAYASHI, KOHEI TAKADA : "Reduction of Common-mode Voltage in Three-phase Inverter by Impedance balancing method", IEICE TECHNICAL REPORT, EMCJ, IEICE, JP, vol. 121, no. 288 (EMCJ2021-60), 1 December 2021 (2021-12-01), JP, pages 34 - 39, XP009550669
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