RECESSED LED LIGHT FIXTURE WITHOUT SECONDARY HEAT SINK
First Claim
1. An LED light fixture without a metal, finned heat sink for mounting to a building framework, comprising:
- at least one LED;
a thermally conductive printed circuit board, wherein the at least one LED is mounted toward the center of the printed circuit board wherein the at least one LED is connected by paths of electrical and thermal conductor material, the printed circuit board having an annular surface area around the edge;
a reflector trim having an open top, wherein the printed circuit board is mounted to the open top and part of the annular surface area is at least one of coupled to and in close proximity to the reflector trim, wherein the reflector trim includes a material with a thermal conductivity of about 2 W/m-K to about 49 W/m-K, and includes a minimum reflectivity of 20%, the reflector trim having an annular flange around the open top to engage the printed circuit board at the annular surface area;
a LED driver for powering the at least one LED;
a mounting system spacing the LED driver away from the printed circuit board creating a gap therebetween; and
attachment means for mounting the light fixture to the building framework.
1 Assignment
0 Petitions
Accused Products
Abstract
A recessed LED light fixture without need for a bulky, finned, metal heat sink. The recessed LED light fixture includes a Metal Core Printed Circuit Board (MCPCB) holding an array of LEDs that are arrange at the center thereof, and mounted to the printed circuit board using patterns of electrical and thermal conductors used to conduct a current and radiate heat. A mounting bracket holds the entire assembly for the light fixture together while spacing the LED driver and printed circuit board apart for further cooling, and wherein the upper side of the printed circuit board is exposed to the ambient air inside the housing.
-
Citations
19 Claims
-
1. An LED light fixture without a metal, finned heat sink for mounting to a building framework, comprising:
-
at least one LED; a thermally conductive printed circuit board, wherein the at least one LED is mounted toward the center of the printed circuit board wherein the at least one LED is connected by paths of electrical and thermal conductor material, the printed circuit board having an annular surface area around the edge; a reflector trim having an open top, wherein the printed circuit board is mounted to the open top and part of the annular surface area is at least one of coupled to and in close proximity to the reflector trim, wherein the reflector trim includes a material with a thermal conductivity of about 2 W/m-K to about 49 W/m-K, and includes a minimum reflectivity of 20%, the reflector trim having an annular flange around the open top to engage the printed circuit board at the annular surface area; a LED driver for powering the at least one LED; a mounting system spacing the LED driver away from the printed circuit board creating a gap therebetween; and attachment means for mounting the light fixture to the building framework. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An LED light fixture without a metal, finned heat sink, comprising:
-
at least one LED; a thermally conductive Metal Core Printed Circuit Board (MCPCB) having a first diameter, wherein the at least one LED is mounted toward the center of the MCPCB, and wherein the at least one LED is connected by paths of electrical and thermal conductor material; a reflector trim having an open top of a second diameter wherein the second diameter is smaller than the first diameter and an outer periphery of the MCPCB overhangs the reflector trim, and wherein the MCPCB is mounted to the open top so that the MCPCB is at least one of coupled to and in close proximity to the reflector trim; a LED driver for powering the at least one LED; a mounting system spacing the LED driver away from the MCPCB creating a gap therebetween; and attachment means for mounting the light fixture. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. An LED light fixture without a metal, finned heat sink, comprising:
-
A plurality of LEDs; a thermally conductive Metal Core Printed Circuit Board (MCPCB) having a first outside diameter, wherein the plurality of LEDs are mounted toward the center of the MCPCB, and wherein the plurality of LEDs are connected by paths of electrical and thermal conductor material; a reflector trim having an open top having a second outside diameter wherein the second outside diameter is smaller than the first outside diameter and an outer periphery of the MCPCB overhangs the reflector trim, and wherein the MCPCB is mounted to the open top; a LED driver for powering the plurality of LEDs; a diffuser covering the plurality of LEDs; a mounting system spacing the LED driver away from the MCPCB creating a gap therebetween; and attachment means for mounting the light fixture. - View Dependent Claims (17, 18, 19)
-
Specification