Brief analysis of the selection methods and principles of brushless DC motors

Compared with the former commonly used brush motors, brushless motors have a long life, low noise, high torque, the advantages are more obvious, brush is also gradually eliminated by brushless, brushless motors are widely used in AI intelligence, automotive, medical instruments, industrial automation and other industries.

Because brushless DC motors vary in size and type, it is critical to select a motor that meets the performance requirements of the product. How exactly do you choose? The following are a few selection methods and principles for choosing brushless motors.

1、Specification selection

When the power supply voltage is adjustable, you can choose the brushless DC motor specifications with torque and speed close to the corresponding rated value of the product according to the actual needs, and you can get the required speed by changing the voltage. In the case of fixed supply voltage, if there is no suitable brushless DC motor to choose from, you can first select the appropriate specifications according to the torque and adjust the voltage and speed of the product appropriately.

2、Power supply selection

The output power of the motor is limited. If the brushless motor power selection is too small and the load exceeds the rated output power, it will lead to motor overload, motor heating, vibration, speed drop, and strange noise. If the load is severely overloaded, the motor will burn up. If the power is too high, it will cause economic waste. Therefore, it is important to choose the power of the motor reasonably.

3、Type selection

Choose high efficiency, low price, low temperature rise of ferrite permanent magnet brushless DC motor. Only when the performance requirements are strict, the volume is small and the ambient temperature is high, you can consider using Alnico permanent magnet brushless DC motor or rare earth permanent magnet brushless DC motor.

These are the common selection methods and principles of brushless DC motors, after a full understanding of brushless motors, for their production requirements, to decide what brushless motor to choose, so that production can be smooth!

WhatsApp/Wechat: +86 13075286997

Email: sales@vacuz.com [fusion_form form_post_id="431″ margin_top="" margin_right="" margin_bottom="" margin_left="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id=""][/fusion_form]