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:
Mar. 19, 2024
Filed:
Dec. 06, 2019
Bombardier Transportation Gmbh, Berlin, DE;
Ben Diedrichs, Sundbyberg, SE;
Tommy Randow, Västerås, SE;
BOMBARDIER TRANSPORTATION GMBH, Berlin, DE;
Abstract
An arrangement for cooling power semiconductor devices () of a converter () arranged in a closed casing () with the semiconductor devices in a bottom of the casing on top of a heat sink () having members () for heat exchange extending externally of the casing out from the bottom comprises a channel () for conducting a flow of air to pass said members () for cooling thereof, in which a first portion () of the channel has the casing bottom as a ceiling and receiving said members (). A fan () is located with a suction side connected to the first channel portion () to create a flow of air from an inlet () from the exterior () into the channel while passing the heat sink members. A filter () covers the inlet to the channel for removal of dust and debris from air entering the channel from the exterior.