초록 ▼

An enclosure for electronic equipment is constructed to orient a plurality of circuit boards in series of parallel slots with air-flow channels therebetween. Cooling air is delivered at constant pressure to inlet ends of each of the channels. Each channel is provided with a thermally sensitive air-f

An enclosure for electronic equipment is constructed to orient a plurality of circuit boards in series of parallel slots with air-flow channels therebetween. Cooling air is delivered at constant pressure to inlet ends of each of the channels. Each channel is provided with a thermally sensitive air-flow restrictor at its outlet end. Each air-flow channel is thus provided with independent air temperature control. As a result, each circuit board slot can be utilized for a board with varying heat generating and air resistance characteristics. Each board is cooled properly irrespective of its power usage or shape. Additionally, the enclosures can be relocated to different environments having a wide range of ambient temperatures without adversely effecting the operational characteristics of components on the circuit boards.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus comprising:a support frame adapted to support a plurality of heat generating elements while leaving an air channel between adjacent heat generating elements;the support frame defining first and second ends of each air channel;the first ends of each air chan

[ What is claimed is:] [1.]1. An apparatus comprising:a support frame adapted to support a plurality of heat generating elements while leaving an air channel between adjacent heat generating elements;the support frame defining first and second ends of each air channel;the first ends of each air channel being adapted to be in communication with a source of air; anda plurality of thermally sensitive air-flow restrictors, a separate one of the plurality of thermally sensitive air-flow restrictors being positioned at the second end of each air channel,each of the plurality of thermally sensitive air-flow restrictors being adapted to essentially cover the second end of a respective air channel if a first amount of heat or less is detected in the respective air channel, to partially open the second end of the respective air channel if a second amount of heat is detected in the respective air channel, and to completely open the second end of the respective air channel if a third amount of heat or more is detected in the respective air channel, the second amount of heat being greater than the first amount of heat and the third amount of heat being greater than the second amount of heat, such that individualized cooling control can be achieved for each heat generating element in the support frame.