Heat sink for LED lamp

Details Heat sink for LED lamp Heat sink for LED lamp

2007-10-10

2009-02-17

Thompson, Gregory D (Department: 2835)

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

C362S218000, C362S294000, C362S373000, C257S722000, C165S080200, C165S080300, C165S185000, C361S703000, C361S704000, C361S690000

Reexamination Certificate

active

07492599

ABSTRACT:
A heat dissipation device (40) is used for dissipating heat generated by a plurality of LEDs (15) mounted on a circuit board (12). The heat dissipation device comprises two heat sinks (30) mounted on the circuit board via a heat spreader (20). Each of the two heat sinks comprises a plurality of fins (300) stacked together. A plurality of short walls (350) are formed at two opposite lateral sides of the two heat sinks. A plurality of openings (330) are defined below the short walls and opened laterally. A plurality of vertical cavities (360) are defined by the two heat sinks and communicate with the openings (330), respectively. The cavities in the two heat sinks are alternately arranged.

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patent: 7284882 (2007-10-01), Burkholder
patent: 2007/0057361 (2007-03-01), Lange et al.

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