Abstract: With the widespread use of air conditioning, the competitiveness of air conditioning enterprises is also increasing. In order to occupy a certain share in the market, it is necessary to pay attention to the creation of brand and product characteristics. As a key component of the outdoor unit of the air conditioner, the grille has a great impact on the performance of the whole machine. If the air conditioning capacity is poor or the noise is too high, the customer satisfaction will be reduced. In this paper, the reliability of the grid structure will be analyzed through wind field simulation, and then the air volume test will be carried out to verify the impact of the grid on the air volume, and the grid will be preliminarily optimized. Finally, the wind field characteristics of the windmill type grid are better, and the capacity has also been significantly improved.

Key words: Grating, Air volume simulation, Performance improvement