LED lighting apparatus and housing
First Claim
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1. A lighting apparatus, comprising:
- a housing, wherein the housing includes a housing top which is arcuate in shape and defines a housing cavity which has a substantially D-shaped cross section;
a thermally-conducting circuit board located within the housing cavity and having two opposing sides and an electrically-insulating layer on at least one of the two opposing sides;
at least one LED light source thermally coupled to the circuit board to conduct heat from the LED light source to the circuit board during operation, wherein the LED light source is connected to the circuit board to receive electrical power from the circuit board;
an optically-permissive compound associated with the circuit board, wherein the compound is capable of transmitting light output of the at least one LED light source and configured to conduct heat from the circuit board to the compound during operation;
at least one spacer located within the housing cavity, wherein the at least one spacer is configured to absorb mechanical shock introduced into the lighting apparatus; and
a power supply circuit for providing electrical power to energize the LED light source.
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Abstract
A lighting apparatus and method for making the same are presented. In some aspects the apparatus includes a plurality of LED light sources mounted to a metal circuit board in a housing of the apparatus. In other aspects a light-permissive potting compound is disposed in the space between the LEDs and circuit board and the housing of said apparatus so as to permit exit of light from said LEDs while providing mechanical protection for the circuit board and LEDs and removing heat generated from said LEDs.
12 Citations
20 Claims
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1. A lighting apparatus, comprising:
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a housing, wherein the housing includes a housing top which is arcuate in shape and defines a housing cavity which has a substantially D-shaped cross section; a thermally-conducting circuit board located within the housing cavity and having two opposing sides and an electrically-insulating layer on at least one of the two opposing sides; at least one LED light source thermally coupled to the circuit board to conduct heat from the LED light source to the circuit board during operation, wherein the LED light source is connected to the circuit board to receive electrical power from the circuit board; an optically-permissive compound associated with the circuit board, wherein the compound is capable of transmitting light output of the at least one LED light source and configured to conduct heat from the circuit board to the compound during operation; at least one spacer located within the housing cavity, wherein the at least one spacer is configured to absorb mechanical shock introduced into the lighting apparatus; and a power supply circuit for providing electrical power to energize the LED light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for manufacturing a lighting apparatus, comprising:
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obtaining a housing, an LED light source and a thermally-conducting circuit board, wherein the housing includes a housing top which is arcuate in shape and defines a housing cavity which has a substantially D-shaped cross section; connecting the LED light source to the thermally-conducting circuit board and the thermally-conducting circuit board to a power cord, wherein the LED light source is connected to the circuit board to receive electrical power from the circuit board; associating at least one spacer with the circuit board; locating the LED light source and the thermally-conducting circuit board within the housing along with at least one spacer, wherein the at least one spacer is configured to absorb mechanical shock introduced into the lighting apparatus; and encapsulating the LED light source within a thermally conducting optically-permissive compound within the housing cavity, wherein the compound is located within the housing cavity to be between the housing top and the thermally-conducting circuit board.
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Specification