Improved Cooling System for Rack-Mounted Equipment
Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-27
This article describes an improved way of cooling electronic equipment mounted in a 19" rack. It avoids the cumulative air temperature rise which occurs in a conventional cooling system. In a conventional cooling system (Fig. 1) air enters the rack via an air intake at the bottom of the rack. The air, which exits via the top of the rack, is relatively hot because it is cumulatively heated by each of the card cages in the rack. The system proposed (Figs. 2 and 3) allows fresh air to be draw in from the front of the rack by air intakes at the bottom card cage. The air then flows through the card cage and the power supply (if required) and exits via the lower part of the air intake above. A "V-shaped" deflector (see Fig.