Do you know the five main points of difference between brushless and brushed motors?

      At present, the popularity of the domestic electric vehicle industry is still rising. The natural market is extremely competitive. In addition to making a fuss about price and appearance, companies and businesses are also working hard on the small details of electric vehicles. It is the promotion of brushless and brushless motors, and the advertising of brushless motors is one of the highlights. So what is the difference between brushed and brushless, and what are their advantages? Today, the editor of Sanxinda will come to answer for you.

1. Brushed motor When the motor is working, the coil and commutator rotate, but the magnetic steel and carbon brush do not rotate. The alternating current direction of the coil is changed by the commutator and brush that rotate with the motor. In the electric vehicle industry, brush motors are divided into high-speed brush motors and low-speed brush motors. There are many differences between brush motors and brushless motors. From the name, we can see that the brush motors have carbon brushes, and the brushless motors do not.

        2. The brushless DC motor is composed of a motor body and a driver, and is a typical mechatronic product. Since the brushless DC motor runs in a self-controlled manner, it will not add a start winding to the rotor like a synchronous motor that is started under heavy load under variable frequency speed regulation, nor will it cause oscillation and loss of synchronization when the load changes suddenly.

        3. The brush motor is a traditional product with relatively stable performance.

         The brushless motor is an upgraded product, and its life performance is better than that of the brush motor. However, its control circuit is more complicated, and the requirements for aging and screening of components are stricter. Although the motor has a long life, the control circuit is prone to malfunction. Therefore, the selection of brushless motors must undergo rigorous reliability tests to ensure quality. , But with the continuous upgrading of technology a few steps, the brushless motor technology has been quite mature.

4. In the actual production process, because the brushed and toothed DC motor is a high-speed motor, the teeth of the gear are small and easy to wear, but the force is large and the climbing ability is strong. The brushless DC motor saves the trouble of replacing the carbon brushes in two or three years. However, due to the process of controlling the brushless motor, extremely high precision is required. Moreover, the price of brushless motor controllers is also higher. In contrast, a brushless DC motor, although it is necessary to replace the carbon brush, it is very easy to replace the carbon brush, and the control of the motor is relatively simple, the motor runs smoothly, and the safety factor is high.

       5. Brushed motor means that the motor has a direct current input, and the controller that controls it can only provide it with large and small currents to adjust the speed; and the brushless motor is actually a three-phase AC motor, and the controller converts the direct current into three-phase Alternating current, and commutation according to the sensor Hall element in the motor to make the motor run normally. Directly speaking, brushless motors have longer lifespans than brushed motors and save power at the start, but controllers are more expensive than brushed controllers. At present, all current controllers are brushless, and those with brushes have basically been eliminated. The electric vehicle controller is the core control device used to control the start, run, advance and retreat, speed, stop and other electronic devices of the electric vehicle. It is like the brain of the electric vehicle and an important part of the electric vehicle.

       Now everyone should be aware of the principles and features of brush and brushless motors. Sanxinda is a professional manufacturer of brushless and brushless motors. If you have any questions or needs, you can contact us at any time. http://www.yksxd.net/