Modular LED light Fixture

摘要

An LED light fixture has an extruded base housing element defining an opening which is removably bridged by a metal heat sink to which is mounted at least one LED. A plastic cover lens has deflectable legs with axial concave elements which engage with outwardly facing convex elements on cover mount members which protrude from the heat sink on either side of the LED. The LED power supply may be supported in a compartment above the heat sink. The cover lens has a wrap-around connection to the heat sink cover mount members which is tolerant of variation in heat sink extrusion dimensions, and which is insensitive to variations in main housing element dimensions. Alternative trim elements and cover lenses allow field configuration of the fixture to various applications.

主权项

1. A light fixture comprising:
a base housing element having two spaced side members connected by a top member, wherein portions of the base housing element define a downwardly facing first opening; a heat sink removably fixed to the base housing element to extend between the base housing element two side members across the first opening, wherein the heat sink has a mounting segment, and a plurality of heat radiating fins extending away from the mounting segment, wherein the mounting segment is spaced below the base housing element top member; at least one LED mounted to the mounting segment of the heat sink to face downwardly; portions of the heat sink which define a downwardly extending first cover mount member and a second downwardly extending cover mount member, wherein the first cover mount member is spaced sidewardly from the second cover mount member such that the at least one LED is positioned between the first cover mount member and the second cover mount member, wherein each cover mount member has a leg which extends downwardly from the mounting segment, and a foot which extends sidewardly from the leg, such that the feet project away from one another; and a plastic cover lens having two upwardly extending arms and a central lens element therebetween, wherein the central lens element extends below the at least one LED and the mounting segments, the lens element allowing light from the at least one LED to pass therethrough, wherein each arm has a connecting member which engages one of the heat sink cover mount members, the heat sink cover mount members being thereby positioned between the cover lens connecting members, wherein the arms are resilient and biased inwardly towards the heat sink cover mount members so as to releasably urge the arm connecting members against the heat sink cover mount members.