Modular LED flood light

摘要

A modular luminaire which uses LED light sources. The basic frame comprises two end pieces compressed together by through bolts. At least one elongated heat sink is compressed between the end pieces. Each heat sink may bear a plurality of LEDs mounted on a printed circuit board which may have an integral metallic backplate, and is installed on one of the heat sinks with a layer of heat conductive grease therebetween. The heat sinks have fins projecting in three directions, the fourth direction being accounted for by the LEDs, and are rotatable about their longitudinal axes to adjust direction of light propagation. The heat sinks are arrayed in an arc, so that the outside heat sinks shield observers from direct glare from opposed heat sinks. Heat sinks may be extruded to form cooling fins and slots which may receive fasteners such as screws.

主权项

1. A luminaire which uses a plurality of LEDs as a light source, comprising:
a plurality of heat sinks each having a proximal end, a distal end, a length defined between the proximal end and the distal end, a proximal end piece disposed to support the proximal ends of each one of the heat sinks; a distal end piece disposed to support the distal ends of each one of the heat sinks; a plurality of through bolts disposed to extend from the proximal end piece to the distal end piece and to unite the proximal end piece and the distal end piece, and to draw the proximal end piece towards the distal end piece while entrapping each one of the heat sinks between the proximal end piece and the distal end piece; and electrical supply circuitry disposed to connect electrical power to each one of the LEDs, wherein the electrical supply circuitry comprises a power converter mounted to the luminaire out of contact with the heat sinks.