SOLID-STATE LAMPS WITH PASSIVE COOLING
First Claim
1. A solid-state lamp comprising:
- a body with a first chamber having inlet apertures and a second chamber having outlet apertures, said chambers being interconnected in fluid communication by at least one passage;
a thermally conductive substrate having a heat radiating surface located within at least one chamber; and
at least one solid-state light emitter mounted in thermal communication with the thermally conductive substrate.
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Accused Products
Abstract
A solid-state lamp comprises a body having a first chamber with inlet apertures and a second chamber with outlet apertures. The chambers are interconnected in fluid communication by one or more passages. The lamp further comprises a thermally conductive substrate having a heat radiating surface located within at least one chamber and one or more solid-state light emitters, typically LEDs, mounted in thermal communication with the thermally conductive substrate. The lamp is configured such that in operation heat generated by the LEDs is radiated by the substrate into one or both chambers causing a difference in air pressure between the chambers that results in surrounding air being drawn into the inlet apertures, flowing through the chambers via the interconnecting passages in the substrate and exiting through the outlet apertures thereby cooling the substrate and LEDs.
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Citations
23 Claims
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1. A solid-state lamp comprising:
- a body with a first chamber having inlet apertures and a second chamber having outlet apertures, said chambers being interconnected in fluid communication by at least one passage;
a thermally conductive substrate having a heat radiating surface located within at least one chamber; and
at least one solid-state light emitter mounted in thermal communication with the thermally conductive substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- a body with a first chamber having inlet apertures and a second chamber having outlet apertures, said chambers being interconnected in fluid communication by at least one passage;
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15. A solid-state reflector lamp comprising:
- a body comprising an exterior shell and an inner light reflective surface that together at least in part define a chamber having inlet and outlet apertures;
a thermally conductive partition configured to divide the chamber into first and second chambers such that the first chamber contains the inlet apertures and the second chamber contains the outlet apertures, the partition further comprising at least one passage interconnecting the first and second chambers; and
at least one solid-state light emitter mounted in thermal communication with the thermally conductive partition. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
- a body comprising an exterior shell and an inner light reflective surface that together at least in part define a chamber having inlet and outlet apertures;
Specification