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Since high precision of working fluid charging is key to the evaluation of thermal performance, a novel perfusion method of a micro heat pipe (MHP) is presented. The MHP has a length of 26 mm, width of 20 mm and a thickness of ∼2.2 mm. The predetermined quantity of perfusion is 25 or 35 μl. Small volume and large capillary force render conventional vacuum perfusion methods quite impractical. To realise...
High-power light emitting diode (LED) technology has developed rapidly in recent years because of the urgent need to reduce carbon emission. With the increasing illumination intensity of LEDs, thermal management became a critical issue in LED device design. Combining a heat pipe with a heat sink is a method in thermal management for high power LEDs. In this paper, an LED substrate integrated with...
Light-emitting diodes (LEDs) offer the electric lighting market a new and revolutionary light source that saves energy and improves light quality. With the increasing illumination intensity of LEDs, thermal management became a critical issue in its design. In this paper, an LED module integrated with a micro heat pipe and heat sink was designed and fabricated. Micro grooves were fabricated on the...
A novel perfusion method of micro heat pipe(MHP) is presented in this paper. The MHP has length of 26mm, width of 20 mm, and thickness of approximate 2.2mm. The predetermined quantity of perfusion is 25µl. Small volume and large capillary force render conventional vacuum perfusion methods quite impractical. In order to realize microscale and high precision of perfusion, the method of combining the...
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