What is a brushless DC water pump?

Pro, it is my honor to answer for you. Brushless DC water pump, using the principle of permanent magnet brushless DC motor, in its rotor with an impeller, in the shell structure designed to make the liquid for centrifugal movement of the cavity composition, because there is no carbon brush friction, so there is no spark; high efficiency, low power consumption, longer life than the brush motor, low noise. Various characteristics of miniature water pumps 1, miniature AC water pump: AC water pump commutation is through the utility power of 50HZ frequency change, its speed is very low, AC water pumps, there is no electronic components, can be resistant to high temperatures, the same head AC water pump volume and power is 5-10 times the DC brushless water pumps. Advantages: cheap, manufacturers are more 2, brush DC water pump: pump work, coil and commutator rotation, magnets and carbon brushes do not rotate, the coil current direction of the alternating direction of change is with the motor rotation of the commutator and brushes to complete, as long as the motor rotation of the carbon brushes will produce wear and tear, the computer pump running to a certain time, the carbon brushes wear gap becomes bigger, the sound will also increase, continuous operation of hundreds of hours after the carbon brushes can not play a role in the change of direction, the carbon brushes can not play a role in the change of direction, the carbon brushes can not play a role in the change of direction. After a few hundred hours of continuous operation, the carbon brushes will not be able to play the role of commutation. Advantages: low price. 3, brushless motor type DC water pump: motor type brushless DC water pump is composed of brushless DC motor plus impeller. Motor shaft and impeller connected together, the pump stator and rotor is a gap between the use of a long time the water will penetrate into the motor to increase the possibility of motor burnout. Advantages: brushless DC motor has been standardized, there are specialized manufacturers mass production, relatively low cost, high efficiency. 4, brushless DC magnetic drive water pump: brushless DC water pumps using an electronic component commutation, without the need to use carbon brushes commutation, the use of high-performance wear-resistant ceramic shaft and ceramic bushings, bushings through the injection molding and magnets connected to a whole also avoids the wear and tear, so the life of the brushless DC magnetic pump is greatly enhanced. The stator part and rotor part of the magnetically isolated water pump are completely isolated, the stator and circuit board part are potted 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 and stable performance. Various required parameters can be adjusted through the winding of the stator, and wide voltage operation is possible. Advantages: long life, low noise up to 35dB or less, can be used for hot water circulation. The stator and circuit board part of the motor is potted with epoxy resin and completely isolated from the rotor, so it can be installed underwater and is completely waterproof. The shaft of the pump adopts high-performance ceramic shaft with high precision and good vibration resistance. /view/3991192.htm