Heat Exchange Enhancement
1 Assignment
0 Petitions
Accused Products
Abstract
A heat exchange structure includes a plurality of elongated air ducts. The heat exchange structure has an exterior heat exchange surface and interior heat exchange surfaces, the interior surfaces being in the elongated air ducts. The heat exchange structure includes a plurality of heat generators that are distributed on the exterior heat exchange surface along an elongated direction of the air ducts, in which air flowing in the air duct is heated successively by heat from the heat generators, and air flow in the air duct is enhanced by buoyancy of heated air.
51 Citations
34 Claims
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1-12. -12. (canceled)
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13. A vehicle lamp comprising:
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a heat exchange structure comprising a plurality of elongated air ducts, the air ducts comprising heat exchange surfaces configured to exchange thermal energy with air flowing in the air ducts; and light emitting diodes that are distributed along an elongated direction of the air ducts, the light emitting diodes configured to transfer heat to the heat exchange surfaces in the air ducts to successively heat air as the air flows through the air ducts and enhance air flow in the air ducts by buoyancy of heated air; wherein the vehicle lamp is configured to dissipate thermal energy generated by the light emitting diodes to the air flowing in the air ducts. - View Dependent Claims (14, 15, 16)
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17. An MR-16 lamp comprising:
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a light source comprising at least one light emitting diode (LED) module, each LED module comprising a heat exchange structure comprising a plurality of elongated air ducts, the air ducts comprising heat exchange surfaces configured to exchange thermal energy with air flowing in the air ducts; and light emitting diodes that are distributed along an elongated direction of the air ducts, the light emitting diodes configured to transfer heat to the heat exchange surfaces in the air ducts to successively heat air as the air flows through the air ducts and enhance air flow in the air ducts by buoyancy of heated air; wherein each LED module is configured to dissipate thermal energy generated by the light emitting diodes to the air flowing in the air ducts. - View Dependent Claims (18, 19, 20)
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21. A wall wash lamp comprising:
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a heat exchange structure comprising a plurality of elongated air ducts, the air ducts comprising heat exchange surfaces configured to exchange thermal energy with air flowing in the air ducts; and light emitting diodes that are distributed along an elongated direction of the air ducts, the light emitting diodes configured to transfer heat to the heat exchange surfaces in the air ducts and successively heat air as the air flows in the air ducts and enhance air flow in the air ducts by buoyancy of heated air; wherein the wall wash lamp is configured to dissipate thermal energy generated by the light emitting diodes to the air flowing in the air ducts. - View Dependent Claims (22, 23, 24)
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25-32. -32. (canceled)
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33. A method of operating a light source that comprises a plurality of light emitting devices, the method comprising:
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providing electric power to the plurality of light emitting devices; transferring thermal energy from the light emitting devices to multiple locations of an exterior heat exchange surface of a heat exchange structure, the heat exchange structure comprising an elongated air duct and an interior heat exchange surface being in the air duct; transferring thermal energy from the multiple locations on the exterior heat exchange surface to multiple locations on the interior heat exchange surface through a wall separating the interior and exterior heat exchange surfaces; and successively heating air in the air duct by transferring thermal energy from the multiple locations on the second heat exchange surfaces to air flowing in the air ducts, enhancing air flow in the air duct by buoyancy of heated air. - View Dependent Claims (34)
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Specification