Patent ID: 6330155
Filing Date: 2001-12-11
Classification: H05K

Abstract:
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.