Light emitting diode cooling with turbulent flow
AssigneeNBCUniversal Media, LLC
InventorCharles Edwards
Life of this patent
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Abstract
A cooling system for a light emitting diode (“LED”) assembly includes a fluid configured to absorb heat at the LED assembly, a heat exchanger coupled to one or more substrates of the LED assembly, where the heat exchanger is configured to exchange heat between the LED assembly and the fluid, and a pump configured to circulate the fluid along the LED assembly and the heat exchanger, where the fluid exhibits a turbulent flow at the LED assembly, the heat exchanger, or both, while circulated by the pump.
Claims20
A cooling system for a light emitting diode (“LED”) assembly, comprising:
- a fluid configured to absorb heat at the LED assembly;
- a heat exchanger coupled to one or more substrates of the LED assembly, wherein the heat exchanger is configured to exchange heat between the LED assembly and the fluid;
- and
- a pump configured to circulate the fluid along an inner annular passage through the heat exchanger generally toward an end passage formed between the LED assembly and an enclosure, through the end passage, into an outer annular passage formed between the LED assembly and the enclosure, and along the outer annular passage generally away from the end passage, wherein the fluid exhibits a turbulent flow at the LED assembly, the heat exchanger, or both, while circulated by the pump.
A light emitting diode (LED) device, comprising:
- an LED assembly;
- an inner annular passage formed within the LED assembly;
- an enclosure configured to house the LED assembly;
- an end passage formed between the LED assembly and the enclosure, wherein the end passage is fluidly coupled to the inner annular passage;
- and
- an outer annular passage formed between the LED assembly and the enclosure, wherein the outer annular passage is configured to enable circulation of a fluid along the LED assembly and through a heat exchanger to absorb heat from the LED assembly, wherein the LED assembly is configured to be immersively disposed within the fluid, wherein the LED assembly is configured to emit light through the fluid and through the enclosure, wherein the fluid exhibits a turbulent flow while circulating through the LED assembly, and wherein the fluid is configured to circulate along the inner annular passage through the heat exchanger generally toward the end passage, through the end passage, into the outer annular passage, and along the outer annular passage generally away from the end passage.
A light emitting diode (“LED”) assembly, comprising:
- a plurality of LED arrays, wherein each LED array of the plurality of LED arrays comprises:
- a substrate;
- and
- a plurality of LEDs coupled to the substrate;
- and
- a heat exchanger coupled to the substrate of each LED array of the plurality of LED arrays, wherein the heat exchanger is configured to exchange heat between the plurality of LED arrays and a fluid, wherein the fluid exhibits a turbulent flow at the heat exchanger, and wherein the fluid is configured to circulate along an inner annular passage formed within the LED assembly through the heat exchanger generally toward an end passage formed between the LED assembly and an enclosure, through the end passage, into an outer annular passage formed between the LED assembly and the enclosure, and along the outer annular passage generally away from the end passage.
Dependencies are inferred from the claim text.