The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Dec. 26, 2016
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventor:
Satoshi Taira, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/08 (2006.01); H03H 7/01 (2006.01); H01F 27/02 (2006.01); H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
H01F 27/08 (2013.01); H01F 27/025 (2013.01); H02M 1/126 (2013.01); H03H 7/17 (2013.01);
Abstract
Provided is a filter device to be connected between an AC power source () and a PWM converter (), which includes a first AC reactor (), a second AC reactor () that is connected between the PWM converter () and the first AC reactor (), a filter capacitor () whose one end is connected to a connecting portion () between the first AC reactor () and the second AC reactor (), and a housing () having a cooling air inlet () and a cooling air outlet () and containing the first AC reactor () and the second AC reactor (), wherein the first AC reactor () is disposed upwind of the second AC reactor ().