Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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An Experimental Study on the Temperature Distribution according to the Heat Sink Height of 30W LED Floodlight

30W급 LED 투광등 히트싱크 높이변화에 따른 온도분포에 관한 실험적 연구

  • Kim, Dae-Un (Gyeongsang National University, Department of Energy and Mechanical Engineering, graduated school) ;
  • Chung, Han-Shik (Gyeongsang National University, Department of Energy and Mechanical Engineering, Institute of Marine Industry) ;
  • Jeong, Hyo-Min (Gyeongsang National University, Department of Energy and Mechanical Engineering, Institute of Marine Industry) ;
  • Yi, Chung-Seob (Gyeognam National University of Science and Technology, Engine Parts Verification Center)
  • 김대언 (경상대학교 에너지기계공학과 대학원) ;
  • 정한식 (경상대학교 에너지기계공학과 해양산업연구소) ;
  • 정효민 (경상대학교 에너지기계공학과 해양산업연구소) ;
  • 이중섭 (경남과학기술대학교 엔진부품검증센터)
  • Received : 2017.08.28
  • Accepted : 2017.09.07
  • Published : 2017.10.31
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Abstract

This study tests the characteristics of heat radiation by applying the pin-height variables to 30-W LED floodlights. The angle of the heat sink enables us to identify the characteristics of the heat radiation based on the temperature distribution. The results of the study are as follows. When the heat sinks are set towards the ground, the heat transfer decreases in speed only to expands the temperature distribution, which adversely affects the characteristics of heat radiation and expands the temperature distribution of PCB with the LED chip. We verify that the characteristics of heat radiation are adversely affected when the height of the cooling pin decreases and the heat radiation area decreases, which impedes the heat transfer and increases the temperature distribution on the heat sink.

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References

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