Heat sink and lamp using the same
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United States of America Patent
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Sep 30, 2014
Issued Date -
N/A
app pub date -
Jul 24, 2012
filing date -
Oct 31, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A heat sink includes a main structure and a peripheral structure. The main structure includes a bottom surface and a wall portion. The wall portion surrounds the outer edge of the bottom surface. The wall portion has a plurality of vents. The peripheral structure surrounds the outer edge of the main structure. The peripheral structure has a plurality of first flow paths and a plurality of second flow paths. Each of the first flow paths is located adjacent to the outside of the wall portion. Each of the second flow paths is communicated to the bottom surface via the corresponding vent.
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