Which is better, brushed motors or brushless motors?

There are many types of motors. Common ones include brushed motors, brushless motors, asynchronous motors, three-phase motors, single-phase motors, and so on. The ones that are most frequently discussed are brushed motors and brushless motors. So, which one is better between brushed motors and brushless motors? What are their advantages, disadvantages, and differences? Now, NOYU will simply introduce them to you! 
 

There are brush motors and brushless motors. Visually, there is only a difference of one letter "brush". So, what's the actual situation like? 
1. Brushed motor: 
Brushed motors are the traditional type of motors. They have been in use for a long time. They are mainly composed of stator, rotor, housing, and brushes. They generate rotational torque through magnetic field rotation and then output the kinetic energy. However, this process requires the continuous action of the brushes and the switching of conductors for commutation. 
Its advantages include quick startup, smooth speed adjustment, simple structure, timely braking, etc. The key point is that the price is quite reasonable, so it is highly favored by a large number of customers. 
However, one drawback of the brush motor is that due to the continuous friction caused by the commutation of the brushes, it is prone to failure. Therefore, it is necessary to replace the brushes regularly, which is quite troublesome. 
2. Brushless Motor 
Since the brushes of brushed motors need frequent maintenance and replacement, can the brushes be removed? Thus, the brushless motor was invented. 
Brushless motors do not have brushes for commutation, instead they use electronic commutation. The operation is completed by the control circuit within the controller. 
Main working principle: The coil is fixed, the magnetic pole rotates. With the Hall sensor replacing the brush, the magnetic force direction can be guaranteed, and the current direction can be switched to drive the motor. 
The advantage is that there is no friction from the brushes, so no sparks will be produced. This not only ensures a long service life and eliminates the need for maintenance, but also makes it suitable for more delicate scenarios. The disadvantage is that the price is relatively higher. 
 

Now let's summarize: Brushless motors have stable operation, high output, relatively low price, and simple structure; Brushed motors are smaller in size, have higher rotational speed, better efficiency, require no maintenance, and can be used in various complex scenarios. In fact, when choosing, everyone should still select the appropriate motor product based on their own needs.