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:
Feb. 22, 2022
Filed:
Dec. 19, 2019
Hitachi, Ltd., Tokyo, JP;
Masaki Noda, Tokyo, JP;
Hiroki Funato, Tokyo, JP;
Isao Hoda, Tokyo, JP;
Hitoshi Taniguchi, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A high-voltage noise filter of a power conversion device includes: a metal housing; an anode bus bar connecting anodes of a power source and a power module; a cathode bus bar connecting cathodes thereof; a first magnetic core having a through hole where the anode bus bar and the cathode bus bar pass through; an X capacitor having one end connected to the anode bus bar, and the other end connected to the cathode bus bar; a first Y capacitor having one end connected to the anode bus bar, and the other end grounded; a second Y capacitor having one end connected to the cathode bus bar, and the other end grounded; and a first cooling unit connected to the first magnetic core and the metal housing. The anode bus bar partly faces the first cooling unit, and the cathode bus bar partly faces the first cooling unit.