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HEAT REMOVAL SYSTEM AND METHOD FOR LIGHT EMITTING DIODE LIGHTING APPARATUS

  • US 20110057552A1
  • Filed: 09/28/2010
  • Published: 03/10/2011
  • Est. Priority Date: 03/02/2008
  • Status: Active Grant
First Claim
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1. A heat removal assembly for a lighting apparatus, the heat removal assembly comprising:

  • a plurality of fins configured to receive heat from a light source of the lighting apparatus, wherein adjacent fins of the plurality of fins are separated by a gap width, and wherein each of the plurality of fins has a fin length, and each fin extends in a first direction along the fin length, and the gap width is in a plane substantially perpendicular to the first direction; and

    a duct configured to draw a stack-effect airflow substantially in the first direction past the plurality of fins through the gap widths to remove heat from the plurality of fins, wherein the gap width separating adjacent fins is selected to reduce interference between neighboring boundary layers that form along each of the fins within the duct for a particular duct and fin configuration for the lighting apparatus.

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