Title:
フィルタ装置及び電力変換装置
Document Type and Number:
Japanese Patent JP7449164
Kind Code:
B2
Abstract:
Provided is a filter device including a π-type noise filter, and a metal case in which a first ground point and a second ground point are formed. The π-type noise filter includes a magnetic core configured to surround a direct current wiring, a first capacitor disposed in a stage preceding the magnetic core, a second capacitor disposed in a stage subsequent to the magnetic core, each of the first capacitor and the second capacitor connected to a corresponding one of the first ground point and the second ground point. A first partition and a second partition opposing each other are formed between the first ground point and the second ground point, and the first partition and the second partition have a predetermined gap between each other. Provided is a power conversion device including the filter device and a power conversion unit.
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Inventors:
Lee Jia
Aya Toyama
Hirofumi Shimizu
Aya Toyama
Hirofumi Shimizu
Application Number:
JP2020083659A
Publication Date:
March 13, 2024
Filing Date:
May 12, 2020
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
H03H7/01; H01F27/00; H01F27/06; H01G4/40; H02M7/48; H03H7/09
Domestic Patent References:
| JP2015144509A | ||||
| JP8237936A | ||||
| JP2009240037A | ||||
| JP2005160263A | ||||
| JP2012129631A |
Attorney, Agent or Firm:
Patent Attorney Corporation Sunnext International Patent Office