Parameter analysis and optimization of a heat sink for cooling intelligent power modules（IPM）based on Taguchi method

The stability of the intelligent power module has a very significant impact

on the operation of the air conditioner. In this paper, a prototype

experimental platform is built to verify the feasibility of the simulation

results. Next, the thermal performance and flow characteristics of the heat

sink are analyzed, including single-factor analysis and analysis of

interactive effects. The results show that a smaller pipe diameter can

reduce the maximum temperature of IPM (Timp), but it will increase the pressure

drop (?P) and entropy generation. The thickness of the heat sink plate and

the height of the protruding table have an interactive effect on the Timp. Then

the sensitivity of the Timp and pressure drop to different parameters was

analyzed, and the contribution ratio of the pipe diameter to both the Timp and

pressure drop was the largest. Finally, the optimal combination of

parameters was obtained to minimize both the Timp and pressure drop. Compared

with the original structure, the Timp decreased by 3.98 K.