The micro DC motor can provide all kinds of power, such as suction, vibration, expansion, swing, etc., and can be used in various categories. The following Tianfu micro motor briefly describes the application advantages and principles of the micro motor on water pumps.

The micro DC water pump generates suction through the high-speed rotation of the motor. When the DC motor works, the coil and the commutator rotate from time to time, and the magnetic pole and carbon brush are fixed. The alternating change of the coil current direction is completed with the friction between the commutator and the brush of the DC motor.

The micro DC pump motor can be divided into

1) Brushed DC motor

Advantages: low cost, easy speed regulation, large starting torque.

Defect: The friction between the carbon brush and the commutator during the operation of the DC motor will lead to greater noise, and the continuous operation time is only about hundreds to 1000 hours.

2) Brushless DC motor

Advantages: there is no carbon brush and commutator. The electronic commutator is used to reduce the friction service life, which is only limited by the bearing quality, and the noise is low.

Defect: The speed regulation mode is complex, which leads to an increase in cost, which is generally 1~3 times that of the brush DC motor.

Characteristics of micro DC pump motor

1) Long service life, small size, high efficiency, low energy consumption, no need to take care of themselves;

2) The micro DC motor can do many different parameters at the same rated voltage, such as 12V20000rpm, 12V25000rpm, etc;

3) The micro DC motor has high precision, good shock resistance, and the noise is lower than 35dB. The motor with small power has less noise, which can almost achieve the mute effect;

4) DC motor can complete PWM speed regulation, analog signal input speed regulation, potentiometer manual speed regulation, etc.

Precautions for application of micro DC pump motor

1) Avoid the entry of particles and foreign matters, such as ferromagnetic impurities and particles, which will increase the drive friction of DC motor;

2) Avoid demagnetization. If the temperature of DC motor is too high, it will lead to demagnetization, making DC motor unable to rotate;

3) Minimize idling time.

Precautions for DC motor selection

1) Confirm the working voltage, current, speed, etc. The higher the voltage, the faster the speed, the greater the current, and the greater the noise;

2) Affirm the volume, size and shape;

3) Confirm the working environment, such as working temperature.