PASSIVE PHASE CHANGE RADIATORS FOR LED LAMPS AND FIXTURES
First Claim
1. A lamp, comprising:
- one or more solid state light emitters;
a radiator body with one or more coolant loops; and
a radiator fluid in said radiator body and coolant loops, said solid state light emitters in thermal contact with said radiator fluid, the heat from said light emitters causing the radiator fluid to move through said radiator body and coolant loops to radiate heat from said solid state light emitters into the ambient.
4 Assignments
0 Petitions
Accused Products
Abstract
Heat management devices and structures are disclosed that can be used in lamps having solid state light sources such as one or more LEDs. Some lamp embodiments comprise one or more phase change radiators that utilize the latent heat of fluids to circulate and draw heat away from the LEDs and radiate the heat into the ambient, allowing for the LEDs to operate at a lower temperature. Some phase change radiators according to the present invention can comprise a main radiator body and multiple radiator coolant loops mounted to the body. The present invention relies on the circulation of heated fluid through the radiator body to radiate heat from the LEDs. The heated liquid moves away from the LEDs and is circulated back to thermal contact with the LEDs thought the coolant loops.
-
Citations
30 Claims
-
1. A lamp, comprising:
-
one or more solid state light emitters; a radiator body with one or more coolant loops; and a radiator fluid in said radiator body and coolant loops, said solid state light emitters in thermal contact with said radiator fluid, the heat from said light emitters causing the radiator fluid to move through said radiator body and coolant loops to radiate heat from said solid state light emitters into the ambient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A lamp, comprising:
-
one or more light emitting diodes (LEDs); a phase change radiator in thermal contact with said LEDs and holding a phase change material capable of changing states in response to being heated from said LEDs, said state change causing movement of said material away from said LEDs with said heat radiated into the ambient as said material moves, said material returning to its cooled state as heat radiated in ambient; and a path for returning said material within thermal contact of said LEDs. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A lamp, comprising:
-
one or more solid state light emitters; and a phase change radiator having a radiator fluid, said one or more solid state light emitters in thermal contact with said radiator fluid, the heat from said light emitters heating a portion of said radiator fluid, said heated fluid circulating away from said light emitters to radiate heat into the ambient.
-
Specification