warmth exchanger for the dust-free removal of warmth of electrical devices enclosures containing

摘要

A meanderingly bent metal sheet is mounted on the wall or door of the housing together with a removable cover and a metal plate, and it forms separate channels for cool air from the outside to cool the equipment and for hot air from the interior of the equipment. The cooling fans are so arranged that the two airflows are in opposite directions; the air channels defined by the metal plates have rectangular cross-sections; the two outer channels are defined by the cover and each of the closing metal plates mounted on the housing wall or door.