Design and estimation of a MCPCB-flat plate heat pipe for LED array module

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Recently, high power LED is more and more important due to requirement of illumination. To achieve the greater performance of electric path and heat dissipation ability, the metal core PCB (MCPCB) is used to replace the common FR4 PCB. The MCPCB is composed of copper film, dielectric and metal base. Metal base is made of copper or aluminum and has high thermal conductivity to conduct heat from LED to heat sink. However, the low thermal conductivity of dielectric layer in the middle of MCPCB will cause the temperature raise. In this study, we use 30% diamond powder as the filler of dielectric layer and combined the PCB and flat plate heat pipe (PCB-FPHP) without metal base to enhance the effective thermal conductivity. In order to verify the performance of diamond powder PCB-FPHP, we experimental measured the PCB-FPHP and common MCPCB conducted with 3 different materials include Cu, Al and FPHP by IR camera. The experimental results shows that the thermal resistance of PCB-FPHP is 36%, 78% and 86% lower than MCPCB-FPHP, MCPCB-Cu, and MCPCB-Al respectively. It is obviously that the thermal resistance of metal base and the thermal grease cannot be neglected especially in high power application. The structure of PCB-substrate we propose in this paper can reduce the junction temperature about 0.36°C/W compare with MCPCB-substrate. It is a meaningful number for high power LED application.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013
Pages158-163
Number of pages6
DOIs
Publication statusPublished - 2013 Nov 25
Event2013 10th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013 - Takamastu, Japan
Duration: 2013 Aug 42013 Aug 7

Publication series

Name2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013

Other

Other2013 10th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013
CountryJapan
CityTakamastu
Period13-08-0413-08-07

Fingerprint

Heat pipes
Polychlorinated biphenyls
Light emitting diodes
Metals
Thermal conductivity
Heat resistance
Diamonds
Copper
Powders
Dielectric films
Lubricating greases
Heat sinks
Substrates
Heat losses
Fillers

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Shen, S-C., Huang, H. J., & Shaw, H-J. (2013). Design and estimation of a MCPCB-flat plate heat pipe for LED array module. In 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013 (pp. 158-163). [6617910] (2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013). https://doi.org/10.1109/ICMA.2013.6617910
Shen, Sheng-Chih ; Huang, H. J. ; Shaw, Heiu-Jou. / Design and estimation of a MCPCB-flat plate heat pipe for LED array module. 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013. 2013. pp. 158-163 (2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013).
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abstract = "Recently, high power LED is more and more important due to requirement of illumination. To achieve the greater performance of electric path and heat dissipation ability, the metal core PCB (MCPCB) is used to replace the common FR4 PCB. The MCPCB is composed of copper film, dielectric and metal base. Metal base is made of copper or aluminum and has high thermal conductivity to conduct heat from LED to heat sink. However, the low thermal conductivity of dielectric layer in the middle of MCPCB will cause the temperature raise. In this study, we use 30{\%} diamond powder as the filler of dielectric layer and combined the PCB and flat plate heat pipe (PCB-FPHP) without metal base to enhance the effective thermal conductivity. In order to verify the performance of diamond powder PCB-FPHP, we experimental measured the PCB-FPHP and common MCPCB conducted with 3 different materials include Cu, Al and FPHP by IR camera. The experimental results shows that the thermal resistance of PCB-FPHP is 36{\%}, 78{\%} and 86{\%} lower than MCPCB-FPHP, MCPCB-Cu, and MCPCB-Al respectively. It is obviously that the thermal resistance of metal base and the thermal grease cannot be neglected especially in high power application. The structure of PCB-substrate we propose in this paper can reduce the junction temperature about 0.36°C/W compare with MCPCB-substrate. It is a meaningful number for high power LED application.",
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Shen, S-C, Huang, HJ & Shaw, H-J 2013, Design and estimation of a MCPCB-flat plate heat pipe for LED array module. in 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013., 6617910, 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013, pp. 158-163, 2013 10th IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013, Takamastu, Japan, 13-08-04. https://doi.org/10.1109/ICMA.2013.6617910

Design and estimation of a MCPCB-flat plate heat pipe for LED array module. / Shen, Sheng-Chih; Huang, H. J.; Shaw, Heiu-Jou.

2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013. 2013. p. 158-163 6617910 (2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Recently, high power LED is more and more important due to requirement of illumination. To achieve the greater performance of electric path and heat dissipation ability, the metal core PCB (MCPCB) is used to replace the common FR4 PCB. The MCPCB is composed of copper film, dielectric and metal base. Metal base is made of copper or aluminum and has high thermal conductivity to conduct heat from LED to heat sink. However, the low thermal conductivity of dielectric layer in the middle of MCPCB will cause the temperature raise. In this study, we use 30% diamond powder as the filler of dielectric layer and combined the PCB and flat plate heat pipe (PCB-FPHP) without metal base to enhance the effective thermal conductivity. In order to verify the performance of diamond powder PCB-FPHP, we experimental measured the PCB-FPHP and common MCPCB conducted with 3 different materials include Cu, Al and FPHP by IR camera. The experimental results shows that the thermal resistance of PCB-FPHP is 36%, 78% and 86% lower than MCPCB-FPHP, MCPCB-Cu, and MCPCB-Al respectively. It is obviously that the thermal resistance of metal base and the thermal grease cannot be neglected especially in high power application. The structure of PCB-substrate we propose in this paper can reduce the junction temperature about 0.36°C/W compare with MCPCB-substrate. It is a meaningful number for high power LED application.

AB - Recently, high power LED is more and more important due to requirement of illumination. To achieve the greater performance of electric path and heat dissipation ability, the metal core PCB (MCPCB) is used to replace the common FR4 PCB. The MCPCB is composed of copper film, dielectric and metal base. Metal base is made of copper or aluminum and has high thermal conductivity to conduct heat from LED to heat sink. However, the low thermal conductivity of dielectric layer in the middle of MCPCB will cause the temperature raise. In this study, we use 30% diamond powder as the filler of dielectric layer and combined the PCB and flat plate heat pipe (PCB-FPHP) without metal base to enhance the effective thermal conductivity. In order to verify the performance of diamond powder PCB-FPHP, we experimental measured the PCB-FPHP and common MCPCB conducted with 3 different materials include Cu, Al and FPHP by IR camera. The experimental results shows that the thermal resistance of PCB-FPHP is 36%, 78% and 86% lower than MCPCB-FPHP, MCPCB-Cu, and MCPCB-Al respectively. It is obviously that the thermal resistance of metal base and the thermal grease cannot be neglected especially in high power application. The structure of PCB-substrate we propose in this paper can reduce the junction temperature about 0.36°C/W compare with MCPCB-substrate. It is a meaningful number for high power LED application.

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M3 - Conference contribution

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T3 - 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013

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BT - 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013

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Shen S-C, Huang HJ, Shaw H-J. Design and estimation of a MCPCB-flat plate heat pipe for LED array module. In 2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013. 2013. p. 158-163. 6617910. (2013 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2013). https://doi.org/10.1109/ICMA.2013.6617910