HEAT SINK FOR LIGHTING

WIPO Patent Application WO/2014/027755

A1

A heat sink for lighting, according to the present invention, comprises: a base on one surface of which a substrate is installed, wherein on the substrate a plurality of LEDs are arranged; a plurality of first heat dissipation fin arrays, which are formed on the other surface of the base and are radially arranged at a specific angle with respect to the center of the base; a plurality of second heat dissipation fin arrays, which are formed in between the first heat dissipation fin arrays and are radially arranged at a specific angle with respect to the center of the base, wherein each of the first heat dissipation fin arrays comprises a plurality of first heat dissipation fins that are arranged in a single line, each of the second heat dissipation fin arrays comprises a plurality of second heat dissipation fins that are arranged in a single line, wherein the first heat dissipation fins and the second heat dissipation fins are formed toward the center of the base and so that heat transfer areas, where a cooling fluid that is introduced through the first heat dissipation fin arrays and the second heat dissipation fin arrays, are larger toward the edge of the base than at the center of the base. As a result, the heat sink for lighting according to one embodiment of the present invention can maintain a heat dissipation mass that is equal or similar to that of existing heat sinks for lighting while improving heat dissipation capacity.

LEE KWAN SOO (KR)
JANG DAE SEOK (KR)

PCT/KR2013/006086

February 20, 2014

July 09, 2013

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IUCF HYU (KR)

F21V29/00; F21V17/00

KR101137888B1	2012-04-24
KR20120032115A	2012-04-05
KR20110101936A	2011-09-16
KR20110124957A	2011-11-18

YOO, Byung-Wook et al. (KR)
유병욱 (KR)

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