Immersion Cooling of Light Emitting Diodes

摘要

Light emitting diodes (LEDs) historically have been used for indicators and produced low amounts of heat. The introduction of high brightness LEDs with white light and monochromatic colors has allowed them to penetrate specialty and general illumination applications. The increased electrical currents used to drive the LEDs have resulted in higher heat fluxes than those for average silicon CPUs. This has created a need to focus more attention on the thermal engineering of LED power packages. The output of a typical commercial high brightness 1mm² LED has exceeded 100 lumens at drives levels exceeding 300 W/cm².