What are the types and characteristics of solar pumps?

1. Brushed DC photovoltaic pump 2. Brushless DC photovoltaic pump (motor type) 3. Brushless DC photovoltaic pump (magnetic drive isolated) 4, solar photovoltaic pump (photovoltaic water pump system, AC pump)

Features :1.Brushed DC photovoltaic water pump: When the pump is working, the coil and the commutator rotate, the magnetic steel and the carbon brush do not rotate, and the alternating current direction of the coil is completed by the commutator and the brush that the motor rotates, as long as When the motor rotates the carbon brush, it will wear out. When the computer water pump runs to a certain extent, the carbon brush wear gap will become larger and the sound will increase accordingly. After several hundred hours of continuous operation, the carbon brush can not play the role of reversing. Advantages: low price. 2. Brushless motor type photovoltaic water pump: The motor type brushless DC water pump is composed of a brushless DC motor and an impeller. The shaft of the motor is connected with the impeller, and there is a gap between the stator and the rotor of the water pump. When the water is used for a long time, the water will penetrate into the motor and the motor is easily burned out. Advantages: Brushless DC motors have been standardized, and there are a large number of specialized manufacturers, which are relatively low in cost and high in efficiency. 3, brushless DC magnetic drive photovoltaic water pump: brushless DC water pump uses electronic components to commutate, no need to use carbon brush reversing, using high-performance wear-resistant ceramic shaft and ceramic bushing, the bushing is integrated with the magnet through injection molding The wear is avoided, so the life of the brushless DC magnetic pump is greatly enhanced. The stator part and the rotor part of the magnetically isolated water pump are completely isolated. The stator and circuit board parts are sealed with epoxy resin, 100% waterproof, the rotor part is made of permanent magnet, the pump body is made of environmentally friendly materials, low noise, small size, performance. stable. Various required parameters can be adjusted by winding the stator and can be operated at a wide voltage.