Abstract: The drop damage of air conditioner products is the key and difficult problem in the development of air conditioners. It is difficult for air conditioner products to successfully pass the drop test at one time, the rectification period is long, and the research and development cost is high. Based on material test research, firstly obtains the real stress-strain curve of air conditioner packaging and plastic materials to provide accurate material parameters for simulation calculation, and then studies the numerical calculation method of drop of air conditioner hanger packaging with the help of computer CAE simulation tools, simulates the drop behavior of the product during transportation, and analyzes the impact deformation of various parts of the product under different drop conditions. Taking a 1.5 P product as an example, the numerical calculation model of air conditioning drop was established, and the simulation theoretical calculation was compared with the test results. The results showed that the theoretical research method could accurately identify the weak points of product packaging and structural design, and the simulation theoretical calculation was basically consistent with the test trend, and the strength optimization of the machine strength drop problem was guided to improve the machine strength reliability. The application of computer simulation technology to the research and development of air conditioning products can greatly shorten the product development cycle, improve product quality, and enhance the competitiveness of enterprises.

Key words: Sichuan Changhong Air Conditioning Co., Ltd. Mianyang 621000