Abstract: The heat-resistant deformation of the material of the outdoor electric control box of the air conditioner is the bottleneck of the industry. It is also one of the main factors that cause the short circuit of the inverter electronic control main board. It is also the main factor of the instability of the air conditioner. The control box's own heat dissipation scheme, optimized part structure design, rationalization of injection parameters, and optimized plastic materials can effectively improve the heat resistance of the air conditioning outdoor electric control box material, improve the operating reliability of the air conditioner, reduce the product maintenance rate, and reduce the cost.

Key words: Heat-resistant deformation, Optimized structure design, Optimized material, Rationalization of injection parameters