Brushless DC motor is mainly used in the textile industry winding machine, winding machine is a special textile industry equipment. As the last process of spinning and the first process of weaving, winding plays a role of "bridge" linking the preceding and the following, so it plays an important role in the textile field. As the main driving and controlling part of the production and processing, the motor has the characteristics of fast speed and high life, which greatly improves the production efficiency.