Effect of Pin-Fin Heat Sink Structure and Irradiation Angle on High-Power LED Down-Light Thermal Performance

Autor: Xiao Ming Jin, Bo You Zhou, Li Gang Wu, Hai Lin Liu, Wan Jiong Lin, Shi Xun Dai
Rok vydání: 2012
Předmět:
Zdroj: Advanced Materials Research. :653-656
ISSN: 1662-8985
Popis: The heat sink has played an important role in the thermal design of high power LED lamps. In this study, a pin-fin heat sink is designed for the 3-chips high power LED down-light. Thermal performance of pin-fin heat sink is researched by changing the fin height, fin number and lamp’s irradiation angle. Simulation results gotten by CFD software show that the pin-fin heat sink has better thermal performance with fin height of 40mm and fin number of 75. The LED down-light with a pin-fin heat sink has a better cooling effect in multi-angle irradiation. The results provide a reference for future design of pin-fin heat-sink.
Databáze: OpenAIRE