Study on a cooling system based on thermoelectric cooler for thermal management of high-power LEDs |
| |
| Authors: | Junhui Li Bangke Ma Ruishan Wang Lei Han |
| |
| Affiliation: | State Key Laboratory of High Performance and Complex Manufacturing, Changsha 410083, China School of Mechanical and Electronical Engineering, Central South University, Changsha 410083, China Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing, Ministry of Education, Changsha 410083, China |
| |
| Abstract: | To improve the heat dissipation of high-power light-emitting diodes (LEDs), a cooling system with thermoelectric cooler (TEC) is investigated. In the experiment, the 6 × 3 W LEDs in two rows are used to compose the light source module and the environment temperature is 17 °C. The temperatures of heat dissipation substrate of LEDs and cooling fins of a radiator are measured by K type thermocouples to evaluate the cooling performance. Results show that the temperature of the substrate of LEDs reaches 26 °C without TEC. However, it is only 9 °C when the best refrigeration condition appears. The temperature of the substrate of LEDs decreases by 17 °C since the heat produced by LEDs is absorbed rapidly by TEC and dissipated through the radiator, and the junction temperature of LEDs reaches only 45 °C which is much lower than the absolute maximum temperature of LEDs (120 °C). The experiment demonstrates that the cooling system with TEC has good performance. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
