Information handling system dynamic foot for adaptive thermal management
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United States of America Patent
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Sep 6, 2022
Grant Date -
Oct 14, 2021
app pub date -
Apr 9, 2020
filing date -
Apr 9, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A portable information handling system has dynamic foot disposed at a bottom surface of a housing that extends and retracts to adjust cooling airflow impedance at vents disposed at the bottom surface. The dynamic foot includes an actuator in an internal cavity having opposing ramp structures interfaced by a nickel titanium wire that changes phase when heated to move the ramp structures. In the example embodiment, a push-push lock engages and disengages the ramp structures at each activation of the nickel titanium wire so that an embedded controller controls foot extension and retraction by applying current to the nickel titanium wire that heats the wire based upon detection of predetermined thermal conditions in the housing.
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