LED heat sink apparatus
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United States of America Patent
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Oct 14, 2014
Issued Date -
N/A
app pub date -
May 28, 2013
filing date -
Dec 6, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An LED heat sink apparatus (20) comprising a housing (22) that defines a chamber (26). A downward platform (82) is connected with the housing (22) in the chamber (26) to define a bottom cavity (84) and a central cavity (88). LED's (94) are disposed in the bottom cavity (84) for emitting light through a lens (60). The downward platform (82) defines a plurality of holes (106, 108, 116, 118), and a solid ring (104) that has a substantially impervious surface to divide the holes (106, 108, 116, 118) into chimney holes (106, 116, 118) disposed radially inwardly from the solid ring (104) and the LED (94) for directing hot air heated by the LED (94) in the bottom cavity (84) of the chamber (26) into the central cavity (88), and return holes (108) disposed radially outwardly from the solid ring (104) and near the side wall (24) of said housing (22) for directing cool air in the central cavity (88) of the housing (22) that has been cooled by the side wall (24) of the housing (22) into the bottom cavity (84).
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