"Waterproof Cooling Fan" motor development in the country, there is still a long way to go, maybe three, maybe five years, if no policy to stimulate its development will be explored in advance. On the one hand, the cost is a threshold, about 40 percent of domestic copper price difference between the motor and the AC motor, which makes the enterprises in the procurement process, the priority to buy AC motor; on the other hand, the current DC motors are used in air conditioning full DC motor frequency "Waterproof Cooling Fan" mainly for energy efficiency one and part of the energy efficiency of two inverter air conditioner market, limited market demand; again, although each machine manufacturers to focus on improving product quality and quality of operations, the inverter air conditioner market continued rapid development, however, the effectiveness of future energy efficiency and the energy efficiency a 2 "Waterproof Cooling Fan" comprehensive development of the market, at least be 3-5 years, used to upgrade replacement.