Forced-air cooled electronic equipment rack - involves individual air controls for different units to ensure adequate cooling for every unit

摘要

A rack assembly is used to hold electronic equipment, and it has a number of circuit boards or units which are arrange in superimposed horizontal rows in an airtight cabinet with an air input channel (8) below and an air exit channel (8') above, for forced air cooling. Between the rows of units cross-channels (12) run between the inlet and exit channels; they are fitted with air deflector plates (14) which divide the cross-channels into two parts, one of increasing and the other of decreasing cross-section. The cross channels may be provided with regulating flaps to give independent adjustment of the airflow through each channel.