What are the types and working principles of DC submersible pumps?

Types of DC submersible pumps: 　　1, brushed DC water pump Zhongke Shibaiji Technology 2, brushless DC water pump (motor type) 　　 　　3, brushless DC water pump (magnetic drive isolation type) (Shenzhen Zhongke Century Technology) 　　 three Features of DC water pumpDC Water Pumps Manufacturers in China: 　　 　　1. Brushed DC water pump: When the submersible pump is working, the coil and commutator rotate, but the magnet and carbon brushes do not rotate. The alternating current direction of the coil is the commutator and brush that rotate with the motor To complete, as long as the motor rotates the carbon brushes, they will wear out. When the computer water pump runs to a certain level, the carbon brush wear gap becomes larger and the sound will increase. After hundreds of hours of continuous operation, the carbon brushes cannot reverse the direction. The role of it.　　 Advantages: Low price.　　 　　

2. Brushless DC water pump: The motor 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. If it is used for a long time, water will penetrate into the motor and the motor can easily burn out.　　Advantages: Brushless DC motors have been standardized and mass-produced by specialized manufacturers, with relatively low cost and high efficiency.

3. (Zhongke Century Water Pump) Brushless DC magnetic drive water pump: The brushless DC water pump uses electronic components for commutation, without carbon brush commutation, and uses high-performance wear-resistant ceramic shafts and ceramic sleeves. The sleeves are combined with The magnets are connected as a whole to avoid wear, so the life of the brushless DC magnetic water pump is greatly enhanced. The stator part and the rotor part of the magnetically isolated water pump are completely isolated. The stator and the circuit board are potted with epoxy resin, 100% waterproof, the rotor part is made of permanent magnets, and the water pump body is made of environmentally friendly materials, with low noise, small size and performance stable. Various required parameters can be adjusted through the winding of the stator and can be operated at a wide voltage.　　Advantages: Long life, low noise up to 35dB or less, can be used for hot water circulation. The stator and circuit board of the motor are potted with epoxy resin and completely isolated from the rotor. They can be installed underwater and are completely waterproof. The shaft of the water pump adopts a high-performance ceramic shaft with high precision and good shock resistance.　　The difference between a brushless motor and a brushed motor　　　　(1) It is not easy to produce high-temperature arc and metal chips during commutation.　 　　 (2) Less electrical noise, high reliability, long life, and high speed.　 　　 (3) Low voltage, fast starting and easy control.　 　　 (4) Easy to manufacture and small in size.　　 　　(5) can be applied to high temperature environment and low maintenance cost.　 　　 (6) No dirt such as toner, oil mist, etc. is generated in the brush part.　 　　 (7) No electrical noise (no electric wave interference).　 　　 (8) No sparks are produced.