AC micro water pump

Brush DC water pump

Brushless DC water pump (motor type)

Brushless DC water pump (magnetic drive isolated type)

Characteristics of various miniature water pumps

1. Micro AC water pump:

The commutation of the AC water pump is changed by the 50HZ frequency of the mains power. Its speed is very low. There are no electronic components in the AC water pump and can withstand high temperatures. The volume and power of the AC water pump with the same head are 5- that of the DC brushless water pump. 10 times.

Advantages: low price, more manufacturers

2. Brush DC water pump:

When the water pump is working, the coil and commutator rotate, the magnet and carbon brush do not rotate. The alternating current direction of the coil is completed by the commutator and brush as the motor rotates. As long as the motor rotates, the carbon brush will wear out. When the computer water pump runs to a certain extent, the carbon brush wear gap becomes larger, and the sound will increase accordingly. After hundreds of hours of continuous operation, the carbon brush can no longer play a role in commutation.

Advantages: low price.

3. Brushless motor DC 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. If it is used for a long time, water will penetrate into the motor and increase the possibility of motor burnout.

Advantages: The brushless DC motor has been standardized and mass-produced by specialized manufacturers, with relatively low cost and high efficiency.

4. Brushless DC magnetic drive water pump:

The brushless DC water pump adopts electronic component commutation, no carbon brush commutation, high-performance wear-resistant ceramic shaft and ceramic bushing, the bushing is integrated with the magnet through injection molding to avoid wear, so the brushless DC magnetic force The life of the type 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, low noise, small size, and performance stable. Various required parameters can be adjusted through the winding of the stator, and it can be operated at a wide voltage.

Advantages: long life, low noise can reach 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 pump adopts a high-performance ceramic shaft with high precision and good shock resistance.

Application range:

Can be used for computer water cooling systems, solar fountains, desktop fountains, handicrafts, coffee machines, drinking fountains, tea brewers, wine pourers, soilless culture, showers, bidets, tooth washers, water heater pressurization, plumbing mattresses , Hot water circulation, swimming pool water circulation filtration, foot washing surf massage tub, surf massage bathtub, car cooling circulation system, fueler, humidifier, air conditioner, washing machine, medical equipment, cooling system, sanitary products.