Simulation and optimization on plate-fin radiators for electronic components of frequency conversion air conditioners

Aiming at solving the problems of abnormal operation of frequency conversion air conditioning units caused by the weak heat dissipation of electronic components, uses Fluent software to simulate the flow and heat transfer characteristics of the plate-fin radiators for electronic components and the surrounding air flow field. Establishes a calculation model, compares with the experimental parameters, and the simulation calculation error is less than 10.8%. Carries out a simulation study on the original plate-fin radiators. The results indicate that the plate-fin radiators with one-way long fin have poor heat dissipation efficiency under the low wind speed, because of the low air flow and high temperature at the end of the radiators. Proposes a new type of plate-fin radiator, which adopts multi-segment fins and staggered fin structure, and the heat dissipation effect is greatly improved.The temperature of each component is reduced by 2.8 to 4.6 ℃ after optimization, and the optimization efficiency is about 3.2% to 5.5%.