High powered light emitting diode lighting unit
First Claim
1. A solid-state lighting unit comprising:
- a solid-state array housing defining an internal compartment;
at least one solid-state array module, comprising;
an array of solid-state lighting elements;
a solid-state lighting element control circuit; and
a printed circuit board, the solid-state array module being accommodated within the internal compartment of the solid-state array housing;
a rear surface of the solid-state array housing comprising a heat transfer element; and
a power supply housing accommodating a power supply, the power supply housing having a front surface opposing the rear surface of the solid-state array housing, and having a chimney extending therethrough from the front surface of the power supply housing to a rear surface thereof;
the rear surface of the solid-state array housing being fixedly disposed in a spaced apart relationship with respect to the front surface of the power supply housing, such that an input airflow space is defined therebetween so that, during operation of the solid-state lighting unit, outside air flows, in a first direction, into the input airflow space and toward the center of the solid-state lighting unit and exits, in a second direction, through the chimney to facilitate removal of heat from the solid-state lighting elements, wherein the first direction is substantially perpendicular to the second direction.
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Accused Products
Abstract
A light emitting diode (LED) lighting unit including power supply housing accommodating a power supply and an LED array housing defining an internal compartment and a lens sealing the internal compartment. An LED array and an LED control circuit are mounted on a printed circuit board, which is accommodated within the compartment. The rear surface of the LED array housing includes a heat transfer element. At least one of the LED array and power supply housings has a chimney extending therethrough from a front to rear surface. The rear surface of the LED array housing is spaced from the front surface of the power supply housing to define and airflow space therebetween. During operation of the LED lighting unit, air flows into the airflow space and toward a central axis of the LED lighting unit before flowing out through the chimney to facilitate removing heat from the LED lighting unit.
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Citations
12 Claims
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1. A solid-state lighting unit comprising:
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a solid-state array housing defining an internal compartment; at least one solid-state array module, comprising;
an array of solid-state lighting elements;
a solid-state lighting element control circuit; and
a printed circuit board, the solid-state array module being accommodated within the internal compartment of the solid-state array housing;a rear surface of the solid-state array housing comprising a heat transfer element; and a power supply housing accommodating a power supply, the power supply housing having a front surface opposing the rear surface of the solid-state array housing, and having a chimney extending therethrough from the front surface of the power supply housing to a rear surface thereof; the rear surface of the solid-state array housing being fixedly disposed in a spaced apart relationship with respect to the front surface of the power supply housing, such that an input airflow space is defined therebetween so that, during operation of the solid-state lighting unit, outside air flows, in a first direction, into the input airflow space and toward the center of the solid-state lighting unit and exits, in a second direction, through the chimney to facilitate removal of heat from the solid-state lighting elements, wherein the first direction is substantially perpendicular to the second direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification