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Indexed by:期刊论文

Date of Publication:2022-06-29

Journal:光电子 激光

Volume:21

Issue:4

Page Number:485-488

ISSN No.:1005-0086

Abstract:A novel flat heat pipe radiator is put forward and the experimental
   investigation on heat transfer performance of the flat heat pipe
   radiator for cooling high power LED array is established. The startup
   performance, temperature uniformity of the flat heat pipe radiator and
   the effects of the heat load and tilt angle on the thermal
   characteristics in natural convection are analyzed. An
   electrical-thermal conversion method is used to measure the junction
   temperature of the high power LED. It is found that the total thermal
   resistance of the flat heat pipe radiator varies in the range of 0. 3053
   ℃/W-0. 3425 ℃/W and it has a reasonable and uniform temperature
   distribution. The junction temperature of the LED array varies in the
   range of 47.9 ℃-59. 0 ℃ and is far lower than 110 ℃.

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