The analysis of heat pipe cooling in high power LED lighting system

Author

Zheng, Jing´an ; Ge, Dasong ; Li, Junhui

Author_Institution

Central South University, State Key Laboratory of High Performance Complex Manufacturing and School of Mechanical and Electronical Engineering, Changsha, China

fYear

2015

fDate

11-14 Aug. 2015

Firstpage

480

Lastpage

482

Abstract

In order to study the problems of high power LED lighting system, a cooling device based on the combination of heat pipe and fan was designed. In the experiment, the LEDs array of 12 W composed of 4 LEDs is used and the room temperature is 23°C. The thermocouple temperature gauge is used to collect and record the change of the operating temperature of the LED lighting system in 30 minutes. Results show that the temperature of the substrate of LEDs reaches 40°C within 5 minutes when cooling by fins. In the condition of cooling by heat pipe, the cooling effect is little better than by fins. However, the operating temperature is only 25°C when cooling by the combination of the heat pipe and fan. The experiment demonstrates that the cooling in the LED lighting system is very important and heat pipe has excellent cooling capacity only when combination with the fan.

Keywords

LED lamps; Liquids; Power demand; Trigeneration; LED lighting system; fans; fins; heat pipe;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology (ICEPT), 2015 16th International Conference on

Conference_Location

Changsha, China

Type

conf

DOI

10.1109/ICEPT.2015.7236631

Filename

7236631