LED luminaire thermal management system

摘要

A thermal management and heat transfer system for light fixtures. And in particular, light fixtures comprising LED lights requiring lower temperatures than those required by incandescent of neon based light fixtures. The heat transfer includes taking advantage of the thermal updrafts caused by free convection of waste heat to cool the fixture.

主权项

1. A thermal management system for increasing cooling in a light fixture by free convection and without mechanical means comprising:
(i) a manifold located at a perimeter of the light fixture, the manifold comprising a perimeter skirt, a set of fins, and a thermal backplane, wherein a bottom of the perimeter skirt extends below the set of fins so as to substantially hide the set of fins from view, and wherein an interface between the thermal backplane and the set of fins defines a bottom edge of the set of fins; (ii) a cluster of LEDs at least partially surrounded by the manifold and substantially coplanar with the interface; and (iii) an incline cover for the cluster of LEDs, wherein the incline cover channels an updraft created by free convection of heat generated by the cluster of LEDs toward the manifold.