Thermal module design and analysis of a 230 W LED illumination lamp under three incline angles

Abstract

This study investigates on the thermal performance of the 230 W LED projection lamp cooling module in the natural convection and modifies fin parameters including fin spacing, height and thickness and LED base plates materials to achieve optimal heat dissipation and performance through experimental and simulation analysis. Results show that the best values of cooling module are 1.1 mm aluminum fin thickness, 7.5 mm pitch, and 31 mm height and can effectively reduce the LED junction temperature under 75 °C at 90° incline angle. The impact of the incline angle of the LED vapor chamber-based plate to the thermal performance of the present cooling module should be assessed before such a structure of vapor chamber cooling system is used to cool high power LED system. And the experimental results are in good agreement with the theoretical results, whose calculating error is not more than ±10%. A novel comparative process of 230 W LED projection light is developed.