Changzhou Joinbrain Motor Co., Ltd.

Solving the problem of high noise of brushless motors requires comprehensive consideration of a variety of factors and corresponding measures according to the specific situation.

First of all, optimizing the motor structure is an effective solution. By changing the rotor structure of the motor, adding a fixing plate, or weighting the motor housing, the resonant frequency of the motor can be reduced, and thus the noise can be reduced. In addition, reducing vibration is also one of the key measures to reduce noise. Placing vibration isolation pads inside the motor housing or fixing the motor on a solid base can effectively reduce vibration and noise.

Reducing the motor input voltage is also a viable solution. When the voltage is too high, the speed of the motor increases, producing more noise. This can be avoided by reducing the motor input voltage.

More specific measures can be taken for the specific problems of brushless motors. For example, if the noise is caused by an unbalanced rotor, you can try balancing the rotor or replacing it with a new one. If the noise is caused by poor magnetism, the manufacturing and assembly accuracy of the magnet can be checked to ensure that the distance between the poles is consistent and the magnetic force is uniform. Sensor feedback issues are also a source of noise, check the status of the sensor to ensure it is working properly and avoid problems such as sub-targets and noise interference.

In addition, the use of noise-reducing materials or equipment to reduce the noise of brushless motors can also be considered. For example, covering the motor housing with a layer of noise-reducing material, or installing equipment such as a sound enclosure around the motor.

To sum up, solving the problem of high noise of brushless motors requires comprehensive consideration of a variety of factors and corresponding measures according to the specific situation.