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:
Jun. 11, 1996
Filed:
Dec. 15, 1994
Winfried Arz, Burgthann, DE;
Karl-Heinz Ideler, Spardorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A cooling unit for a number of power semiconductors is formed by a quadrangular tube to which the power semiconductors are secured at an exterior with good thermal conductivity, in an equipping region of the tube. The quadrangular tube has a coolant inlet and a coolant outlet. The quadrangular tube contains a laminarization unit disposed in a region following the coolant inlet, this region overlapping the equipping region. The laminarization unit produces a substantially laminar flow of the coolant in the tube within the aforementioned region. In a region between the laminarization unit and the coolant outlet, the quadrangular tube contains a number of turbulence-producing elements for introducing turbulence into the coolant flow.