brushless motor

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    1.  No mechanical brush structure

    –  Reduces wear  :

    – The traditional brush motor relies on the brush and commutator for current commutation, and there is continuous friction between the brush and commutator during the operation of the motor. As the motor continues to run, the brush will gradually wear out. The brushless motor does not have a brush which is easy to wear, avoiding the problems caused by brush wear. For example, in some high speed or frequent start-stop application scenarios, the brush of the brushed motor may appear obvious wear after several hundred hours of operation, while the brushless motor is not subject to this limitation.

    – Debris from brush wear may also cause a short circuit or other failure of the motor. Because there is no debris caused by brush wear, the brushless motor reduces the motor failure caused by debris, thus extending the service life of the motor.

    –  Reduces the damage caused by electric sparks  :

    – The brush motor will generate electrical sparks during the contact and separation of the brush and commutator. The electric spark will cause electrical corrosion to the commutator of the motor, which makes the surface of the commutator rough, and then aggravate the wear of the brush. The brushless motor realizes the current commutation through the electronic commutator, and there is no spark problem between the brush and the commutator, which avoids the damage of electric corrosion to the motor components and is conducive to the long-term stable operation of the motor.

    1.  Efficient heat dissipation design

    –  Internal structure is good for heat dissipation  :

    The structural design of brushless motors makes their heat dissipation performance generally superior to that of brushed motors. For example, the stator windings of brushless motors are usually exposed directly inside the motor housing, and heat is more easily dissipated through the housing. Moreover, the rotor of the brushless motor is usually made of magnetic materials, and its heat is relatively small, unlike the rotor of the brush motor that is powered by the brush, which will generate more heat.

    – Some brushless motors also use heat sinks, fans and other auxiliary cooling devices. The heat sink can increase the contact area between the motor and the air, and the fan can accelerate the flow of air, thus taking away the heat generated by the motor more effectively. Good heat dissipation can prevent the aging of insulation materials and winding damage caused by overheating of the motor, and extend the service life of the motor.

    1. Most accurate electronic control

    –  Optimize motor operating parameters  :

    – Brushless motor through the electronic control system can accurately control the motor speed, torque and other operating parameters. In the process of starting, soft starting can be achieved to avoid the damage caused by the instantaneous large current shock of the motor to the motor winding and other components. For example, in some equipment with high motor starting requirements, the brushless motor can slowly increase the speed according to the preset starting curve, so that the motor can enter the working state smoothly.

    – The electronic control system can also adjust the operating parameters of the motor in real time according to the load of the motor. When the motor load is light, reduce the power output of the motor and reduce the loss of the motor; When the load is heavy, the power output is reasonably increased to avoid motor overload. This precise control can make the motor in various working conditions can maintain a good running state, extend the service life of the motor.

    1. High quality materials and manufacturing process

    –  Choose durable materials  :

    The key components of the brushless motor, such as the stator winding, are made of high-purity copper, which has good electrical conductivity and small resistance, and can reduce heating. The shell and rotor of the motor usually use high-strength, high-thermal conductivity materials, such as aluminum alloy. These materials not only provide good mechanical properties, but also effectively dissipate heat and resist the influence of the external environment.

    –  Advanced manufacturing process to ensure quality  :

    – In the manufacturing process of modern brushless motors, high-precision processing technology is used. For example, the winding of the stator winding adopts automatic equipment, which can ensure the accuracy of the number of turns, wire diameter and winding shape of the winding, and improve the performance and reliability of the motor. At the same time, the assembly process of the motor is also carried out under strict quality control to ensure the installation accuracy of each component, reduce the motor failure caused by poor assembly, and extend the service life of the motor.