Is it better to use brushless motors or brushed motors in model drones? What is the difference between the two?

In recent years, the number of friends who love model drones is increasing, and the model family is getting bigger and bigger. For many friends who are just starting out, a lot of knowledge is still vague, such as whether the model uses brushless motors or brushed motors, and what is the difference between the two?

To understand the model drone motor, first understand the common classification of model motors:.

1. Brushed DC motor: high speed, high torque, and relatively strong adaptability.

2. Brushless DC motor: small size, no interference, speed can be precisely controlled.

3. Brushless AC motor. Small size, high torque, controllable speed, no interference, low noise.

In the past, some friends who know about model drones often worry about the wear and tear of model power motors, ordinary brush motors will gradually reduce the service life and strength as the carbon brushes wear out. The advantages of brushless motor just make up for the shortage of brush motor, especially in the power performance part, a revolutionary innovation, higher efficiency and longer service life.

Inside the brushless motor, there is a powerful permanent magnet. The coil is wound around the iron core. The current flowing through the outer coil generates a strong magnetic field, and together with the inner magnet, generates a force that drives the motor to rotate at high speed. When the ordinary brushed motor is energized, the contact surface of carbon brush and copper head will produce some electric sparks, which will also cause the wear and tear of the copper head and carbon brush, and also cause the loss of carbon brush. Brushless motors are improved for this drawback of brushed motors, without any wear and tear. Therefore, every bit of electricity is used effectively.

Brush motors produce noise that interferes with the transmission and reception of the wireless remote control when they are running at high speed with power on. Brush motors usually have capacitors welded to the back cover to attenuate the interference, while brushless motors are not affected by the interference.

Relatively speaking, brushless motors have longer life and more stable performance than brushed motors. In the process of use, we will find that brushless motors have more power, longer flight time, higher efficiency, longer service life, and are not as easy to heat up as brushed motors. However, although good, the price is certainly more expensive than the brush, more to also have to weigh the pocket. But to play model airplane to play cool, it is recommended to try to choose brushless motor.

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