Views: 6 Author: Site Editor Publish Time: 2025-09-09 Origin: Site
Micro DC motors can provide various power sources, such as suction, vibration, expansion, and oscillation, and can be used in a variety of applications. Pincheng Micromotor will briefly explain the advantages and principles of micro motor applications in water pumps.
Micro DC water pumps generate suction through high-speed rotation of the motor. During operation, the coils and commutator of the DC motor rotate continuously, while the magnetic poles and carbon brushes are fixed. The alternating direction of the current in the coils is achieved by friction between the commutator and the brushes of the DC motor.
Micro DC water pump motors can be categorized as follows:
Advantages: Low cost, easy speed regulation, and high starting torque.
Disadvantages: Friction between the carbon brushes and the commutator during operation causes loud noise, and the continuous operating life is limited to a few hundred to 1,000 hours.
2) Brushless DC Motor
Advantages: No carbon brushes or commutator. An electronic commutator is used, reducing friction. Service life is limited only by bearing quality, and noise is also low.
Disadvantages: The speed control method is complex, resulting in a cost increase that is typically 1-3 times that of a brushed DC motor.
Micro DC Water Pump Motor Features
1) Long service life, compact size, high efficiency, low energy consumption, and no maintenance required;
2) Micro DC brushed motors can be operated with a variety of different parameters at the same rated voltage, such as 12V 20,000 rpm, 12V 25,000 rpm, and so on;
3) High torque dc gear motor offer high precision and excellent vibration resistance, with noise levels below 35dB. Low-power motors offer even lower noise levels, achieving near-silent operation;
4) Brushless dc gear motor can be PWM-controlled, analog signal-controlled, and manually controlled with a potentiometer.
Long lifespan micro Diaphragm water pump Motor Usage Precautions
1) Prevent the ingress of foreign matter, such as ferromagnetic impurities and particles, which can increase friction in the DC motor's transmission;
2) Prevent demagnetization. Excessive temperature increases can cause demagnetization in the DC motor, preventing it from rotating;
3) Minimize idling time.
Considerations for DC Motor Selection
1) Determine the operating voltage, current, and speed. Higher voltages result in faster speeds, higher currents, and greater noise.
2) Determine the dimensions and appearance.
3) Determine the operating environment, such as operating temperature.
These are the advantages and principles of micro DC motors for water pumps. For more information on micro DC motors, please stay tuned.