Power LED lighting assembly

Details Power LED lighting assembly Power LED lighting assembly

2011-06-14

2011-06-14

Shallenberger, Julie A (Department: 2885)

Illumination

Housing

With cooling means

C362S294000

Reexamination Certificate

active

07959330

ABSTRACT:
A power LED lighting assembly includes power LEDs (each 1 watt, for example) mounted on a small circuit board of aluminum. To promote air ventilation, the LED circuit board is provided with air openings to communicate with the heat sink. A heat sink enclosure for accommodating the heat sink is also provided with air openings to communicate with the surrounding atmosphere. A micro fan is fixed above the heat sink for forced air ventilation. A temperature sensor is also installed to sense abnormal temperature increases in the assembly to adjust or reduce the volume of light and protect LEDs against abnormally high temperature. The micro fan is turned on for heat release automatically on a temperature increase.

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patent: 2006/0232984 (2006-10-01), Schuknecht et al.
patent: 2007/0076431 (2007-04-01), Atarashi et al.

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