초록 ▼

A disk drive test chamber creates an environment for disk drives to be tested with an air circulation system that provides an even flow of air over each drive for equivalence in testing conditions. One method of providing equivalent air circulation is to have turning vanes inside air ducts to divert

A disk drive test chamber creates an environment for disk drives to be tested with an air circulation system that provides an even flow of air over each drive for equivalence in testing conditions. One method of providing equivalent air circulation is to have turning vanes inside air ducts to divert equal amounts of air over each shelf holding disk drives through identically sized apertures. The second method is to have apertures of varying sizes of 40, 50 and 70 percent opening per square inch in the air ducts to divert equal amounts of air. The temperature is maintained within 1/4.degree. C. of the set point by a controller through a system of heaters, air pumps, air ducts, insulation, vents, a motorized damper and an exhaust fan. The heater generates heat to simulate the actual heat of running conditions of disk drives. The pumps send air up the side air ducts and down the center air duct. The chamber has two safety features to prevent damage to the disk drives from over temperature. Four separate techniques are employed to minimize vibration to the disk drives being tested; a steel frame, a rubber air duct transition, and neoprene pads on the brackets holding the shelves and on the leveling feet.

대표청구항 ▼

[ What is claimed is:] [1.] A device for testing disk drives comprising:a test bay having a right side, a left side, a ceiling and a floor, the test bay being adapted for housing a plurality of shelves for holding a plurality of disk drives in the test bay, and the test bay being maintainable in a p

[ What is claimed is:] [1.] A device for testing disk drives comprising:a test bay having a right side, a left side, a ceiling and a floor, the test bay being adapted for housing a plurality of shelves for holding a plurality of disk drives in the test bay, and the test bay being maintainable in a predetermined temperature range;at least one heater located below the test bay for heating the test bay;a left air duct and a right air duct positioned on the right and left sides of the test bay for supplying air in an upward direction, the left and right air ducts having air duct covers;at least one pump for pumping air up the left and right air ducts;a central air duct located in the center of the test, the central air duct extending from the floor of the test bay to the ceiling of the test bay and separating the test bay into a right half and a left half, the central air duct being for returning the supply of the air in a downward direction toward the pump, the central air duct having at least one central air duct cover;the left air duct, the right air duct and the central air duct each having a hollow interior with a plurality of turning vanes positioned in the hollow interior for balancing the air flow to various regions of the test bay;a front lower panel positioned below the test bay and including at least one air intake vent;a motorized damper positioned below the test bay for drawing in air through the air intake vent;an exhaust fan positioned on the test bay for expelling air from inside the test bay; andperforations in the air duct covers of the left and right air ducts and equivalent perforations in the central air duct cover for balancing air flow to various regions inside the test bay.