Abstract: People’s demands for a higher quality of life are increasing in the post-epidemic age, and they are becoming increasingly conscious of the comfort of indoor air. The health and comfort features of household air conditioners have gained significant attention in recent times, making them popular choices for air conditioning. Conventional air conditioners frequently have a mechanical air supply, cool directly with cold air rushing in, a heating head is hot while the feet are cold, and poor human comfort. The double-walled multi-spout air deflector is a new type of air guide plate that this paper proposes. It is designed using the multi-jet nozzle jet principle and diffuser principle as its foundation. To optimize the splash type interference soft wind deflector, different air guide plate porosity, soft air ring porosity, air outlet shape, and soft air ring spacing were used in the organization of the airflow numerical simulation using Fluent software. Through a comparative analysis of wind speed distribution, end face air volume, turbulence intensity, and other parameters, the best air comfort soft wind ring guide plate program was evaluated. Finally, the air comfort test was conducted to confirm the soft wind effect of the soft wind ring guide plate. According to the findings, the splash type interference soft wind deflector can effectively reduce wind speed in the area of human activity, realizing the effect of soft wind, and enhancing user experience. It can also lessen the sense of blowing while maintaining the air conditioner’s cold volume and wind volume without affecting the air conditioner’s normal cooling and heating of the air supply range.

Key words: Spoiler, Softwind, Airflow organization, Comfort, Air conditioning