Semiconductor rectifier arrangement with two rectifier wafers - has at least one wafer controllable and both fastened to cooling element

摘要

A metallic base plate (1), which constitutes the basic element of a cooling element, has two hollow tubular parts (2) attached to its underside or lower surface and extending perpendicularly thereto. The two tubular parts (2) or connecting studs, extend to the upper surface of the plate (1) and serve for the attachment of conventional hoses for liquid coolant. A disc-shaped element (10) is provided as the cover for the cooling element and preferably is made of an oxide ceramic. The cover (10) is provided on its surface which is intended to abut and be connected to the base plate (1) with a groove-type, closed, rectangular recess (10a), which when the plate (1) and cover (10) are fastened together form the coolant channel.