What are the characteristics and advantages of various solar pumps?

1. Brush DC solar water pump: when the water pump works, the coil and commutator rotate, while the magnet and carbon brush do not rotate. The alternating change of coil current direction is completed with the commutator and brush of the motor. As long as the motor rotates, the carbon brush will wear. When the computer water pump runs to a certain level, the wear gap of the carbon brush will increase, and the sound will also increase, After several hundred hours of continuous operation, the carbon brush can not play the role of reversing. Advantages: low price.

2. Brushless DC solar water pump (motor type): motor type brushless DC water pump is composed of Brushless DC motor and impeller. The shaft of the motor is connected with the impeller. There is a gap between the stator and rotor of the water pump. After a long time of use, water will penetrate into the motor, increasing the possibility of the motor burning out. Advantages: brushless DC motor has been standardized, there are specialized manufacturers mass production, low cost, high efficiency.