Abstract: With the development of society and the improvement of living standards, occupants require a more comfortable indoor environment. The natural wind is significantly more preferred than the mechanical wind produced by conventional air conditioners due to its natural, fresh, soft, and variable blowing characteristics. By controlling the multi-stage and multi-period motion mode of the air conditioner fan plate, combined with the bending and twisting shape design, the wind speed disorder of the air conditioner is realized, and the wind speed fluctuation, wind speed distribution and turbulence can reach the level of outdoor natural wind. Finally, a more comfortable airflow is achieved, which has improved human comfort.

Key words: Imitated natural wind, Dynamic airflow, Air deflector, Air conditioner