With the advances in the technology of materials based on GaN, high brightness white LEDs (light emitting diodes) have flourished over the past few years and have shown to be very promising in many new illumination applications such as outdoor illumination, task and decorative lighting as well as aircraft and automobile illuminations. The objective of this paper is to investigate an active liquid cooling solution of such LEDs in an automotive headlights application. The thermal design from device to board to system level has been carried out in this research. Air cooling and passive liquid cooling methods were investigated and excluded as unsuitable, and therefore an active liquid cooling solution was selected. Several configurations of the active liquid cooling system were studied and optimisation work was carried out to find an optimum thermal performance.


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    Title :

    Liquid cooling of bright LEDs for automotive applications


    Additional title:

    Flüssigkeitskühlung von hellen Leuchtdioden im Automobilbau


    Contributors:

    Published in:

    Applied Thermal Engineering ; 29 , 5/6 ; 1239-1244


    Publication date :

    2009


    Size :

    6 Seiten, 12 Bilder, 1 Tabelle, 12 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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