Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Numerical Analysis of Heat Sink for Radiant Heat of Automotive LED Head Lamp

자동차 LED Head Lamp의 방열을 위한 Heat Sink의 수치해석적 연구

  • Choi, Byung-Hui (Department of Automobiles, Chosun College of Science & Technology) ;
  • Kim, Chang-Oh (Department of Automobiles, Chosun College of Science & Technology)
  • 최병희 (조선이공대학교 자동차과) ;
  • 김창오 (조선이공대학교 자동차과)
  • Received : 2012.07.10
  • Accepted : 2012.10.11
  • Published : 2012.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

This thesis was conducted a numerical analysis on the radiant heat performance according to factors of design of heat sink for cooling of the automotive LED head lamp. The heat sinks were designed with 5 different types to fit the limited internal space by formula based on an existing product (Type 1). Designed heat sinks of five types were analyzed by ANSYS CFD V12.1, and the analysis results were compared with the existing type. The results of simulation were analyzed temperature distribution and average temperature, air flow characteristic, heat flux etc. This thesis was researched on the correlation of the cooling performance according to the heat sink structure and the fin shape. Through numerical analysis, could be confirmed heat sink Type 2 as the best results.

본 논문은 자동차 LED head lamp의 방열을 위한 히트싱크(heat sink)의 설계요소를 변화시켜 방열특성을 알아보고자 수치해석을 수행하였다. 수치해석에 적용한 히트싱크는 LED를 광원으로 사용하는 기존제품(Type 1)을 바탕으로 한정된 내부공간에 적합하도록 설계하여 5가지 Type으로 설계하였다. 설계된 히트싱크의 수치해석은 ANSYS CFD V12.1을 사용하여 히트싱크의 변화에 따른 온도분포와 평균온도, 공기유동특성, 열유속 등을 분석하였다. 수치해석을 통하여 방열판의 구조와 휜 형상에 따른 방열특성의 상관관계를 도출할 수 있었으며, 설계된 히트싱크의 온도분포, 공기의 유동특성, 열유속 등을 분석한 결과, 히트싱크 Type 2가 다른 Type들에 비해 LED head lamp의 방열을 위해 적합한 특성을 나타내었다.

Keywords

References

  1. Ko, M S., Lee, J, H., Oh, S, J., Cho, H, S. and Seo, T, B., "Cooling Performance of LED Head Lamp with Heat Sink and Cooling Fan", KSME-B, Vol. 33. No. 12, p. 947, 2009. https://doi.org/10.3795/KSME-B.2009.33.12.947
  2. Ik-Soo Eo, Hae-Sool Yang, Se-Ill Choi and Seung Hwangbo., "Research on Heat-Sink of 40Watt Lighting using Peltier Module", Journal of the Korea Academia-Industrial cooperation Society, Vol. 8, No. 4, pp. 733-737, 2007.
  3. IK-Soo Eo. "Analysis of the Heat Radiation of LED Light Fixture using CF-design", Journal of the Korea Academia-Industrial cooperation Society, Vol. 9, No. 6, pp. 1565-1568, 2008. https://doi.org/10.5762/KAIS.2008.9.6.1565
  4. Ik-Soo Eo, "Analysis on Heat-sink of 20Watt Class LED Lamp using COMSOL", Journal of the Korea Academia-Industrial cooperation Society, Vol. 10, No. 7, pp. 1484-1488, 2009. https://doi.org/10.5762/KAIS.2009.10.7.1484
  5. Young Lim Lee and Soon Ho Hwang, "Study on Thermal Design of a 3W MR16 Light with Single High-Power LED", Journal of the Korea Academia-Industrial cooperation Society, Vol. 11, No. 4, pp. 1203-1209, 2010. https://doi.org/10.5762/KAIS.2010.11.4.1203
  6. Soon Ho Hwang, Sang Jun Park1 and Young Lim Lee, "A Study of Optimal Thermal Design for a 10W LED lamp", Journal of the Korea Academia-Industrial cooperation Society, Vol. 11, No. 7, pp. 2317-2322, 2010. https://doi.org/10.5762/KAIS.2010.11.7.2317
  7. Soon Ho Hwang and Young Lim Lee, "Thermal Design of a MR16 LED Light with the Effects of Ceiling Unit Mount", Journal of the Korea Academia-Industrial cooperation Society, Vol. 11, No. 9, pp. 3141-3147, 2010. https://doi.org/10.5762/KAIS.2010.11.9.3141
  8. Kang., H., Kang B., Park., K., "A Study on Contact Thermal Resistance of LED and Heat sink from LED HEAD LAMP," KASE 08-A0351, 2008.
  9. Yan Lai., Nicolas Cordero., Frand Barthel., Frank Tebbe., Jorg Kuhn and Robert Apfelbeck., "Liquid cooling of bright LEDs for automotive application", Applied Thermal Enginering, 2009.
  10. Frank P. Incropera., David p. De Witt., "Introduction to Heat Transer.", Wiley, pp. 667-673, 2002.