Abstract: The heat dissipation of the heating elements inside the induction cooker will seriously affect the performance, operation safety and reliability of the induction cooker. Therefore, it is necessary to design a reasonable heat dissipation structure to realize the cooling of the heating elements. By using the computational fluid dynamics (CFD) based on Fluent, an idea of the heat dissipation structure design, which is based on the wind energy accumulation and stratified air supply, is proposed, and the accuracy of the simulation model is verified by the experiment. The simulation results show that the position and height of the air duct in the heat dissipation structure have great influences on the heat dissipation of the heating elements. Therefore, a reasonable use of the space inside the induction cooker, i.e. properly reducing the space on both sides of the air duct, and controlling the distance of the gap between the exciting coil and glass-ceramics, can gather more air into the air duct, which will improve the effective utilization of the entering wind, and then improve the effect of the air duct on the heat dissipation of the heating elements.

Key words: Heat dissipation, Computational fluid dynamics, Air duct design, Heat transfer