Application principle and advantages of micro DC water pump on motor

Micro DC motors can provide various powers, such as suction, vibration, stretching, swinging, etc., and can be used in various fields. The following briefly describes the application advantages and principles of micro motors in water pumps.

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

Miniature DC water pump motors can be divided into

1) Brushed DC motor

Advantages: low cost, convenient adjustment, large starting torque.

Disadvantages: The friction between the carbon brush and the commutator during the operation of the DC motor will cause greater noise, and the continuous operation time is only about a few hundred hours to 1000 hours.

2) Brushless DC motor

Advantages: No carbon brush and commutator, electronic commutator is used, which reduces friction, and the service life is only limited by the quality of the bearing, and the noise is low.

Disadvantages: The adjustment method is complicated, resulting in an increase in cost, which is 1 to 3 times that of a brushed DC motor.

Micro DC water pump motor characteristics

1) Long service life, small size, high efficiency, low energy consumption, and no maintenance;

2) The micro DC motor can do a variety of different parameters at the same rated voltage;

3) The micro DC motor has high precision, good shock resistance, and the noise is lower than 35 decibels, and the noise of the motor with low power is even smaller, which can almost achieve the mute effect;

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

Matters needing attention in the use of micro DC water pump motors

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

2) Avoid demagnetization. Too high temperature of the DC motor will cause demagnetization and make the DC motor unable to rotate;

3) Minimize idle time as much as possible.

DC motor selection considerations

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

2) Determine the volume size and shape;

3) Determine the working environment, such as working temperature, etc.

The above are the application advantages and principles of micro DC motors in water pumps.

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