Electronic assembly with forced convection cooling

摘要

An electronic assembly with forced convection cooling comprises an elongate support plate having a plurality of electronic equipment cabinets mounted side by side on a common surface of the plate in the longitudinal direction thereof. At least one air distribution channel extends longitudinally of the plate in the said common surface, and a cooling fan is mounted on the same surface of the plate as the cabinets for forcing air along the air distribution channel and into the cabinets for cooling electrical components therein. The assembly preferably includes means for directing air from the channel selectively in different quantities to different components according to their cooling requirements, such means including a plurality of secondary air distribution channels which branch laterally from the first mentioned channel, and means for confining air from the first mentioned channel to flow into the secondary channels.