Phase change cooled electrical resistor
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United States of America Patent
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Mar 8, 2011
Grant Date -
Oct 30, 2008
app pub date -
Apr 30, 2007
filing date -
Apr 30, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A technique is disclosed for cooling resistive elements, such as brake resistors used in motor drives, as well as other resistors. A phase change heat spreader is thermally coupled to the resistive element and a continuous phase change cycle takes place in the heat spreader to extract heat from the resistive element. The element and heat spreader may be packaged as a modular unit or may be integrated into a system.
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