Cooling Performance Study of Ionic Wind Excited by Needles-Net Structure
[1]WANG Jing,CAI Yixi,BAO Weiwei,et al.Cooling Performance Study of Ionic Wind Excited by Needles-Net Structure[J].Journal of Zhengzhou University (Engineering Science),2016,37(03):88-.[doi:10.13705/j.issn.1671-6833.2016.03.020]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 03
Page number:
88-
Column:
Public date:
2016-05-10
- Title:
- Cooling Performance Study of Ionic Wind Excited by Needles-Net Structure
- Keywords:
- corona discharge ; ionic wind; high power LED; enhancement of heat transfer; junction tempera-
- CLC:
- U463.65 +1 0539
- Abstract:
- Based on the principle of corona discharge,a needles-net structure generator was designed.The i-onic wind excitation was implemented,and it was used for high power LED chip heat dissipation. The experi-mental study of generator’s electrical properties change and its effect on the properties of high power LED heatdissipation under different discharge gap,voltage polarity and electrode arrangement were carried out. Thecooling performances of the ionic wind generator and the cooling fan were compared. The results show that ,the heat dissipation performance of negative corona discharge is superior to the positive corona discharge underthe same conditions, and the discharge spacing is smaller,the lower LED pin temperature it is.The best cool-ing performance will be reached at 1 x1l needles array form,and the lowest LED pin temperature is 52.3℃when the discharge power is more than 10 W. The device can realize the heat dissipation effect more close toa cooling fan,and it is suitable for high power LED chip heat dissipation.
- References:
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