Brush motor with mechanical steering, magnetic pole fixed coil rotation. Brushless motor with electronic steering, coil fixed, magnetic pole rotation.
　　Brush DC motor brush wear high, often a failure, maintenance is also more trouble. With the progress of technology, brushless DC motor gradually replaced the previous widely used brush motor, through the three Hall sensor sensor rotor position to complete the commutation, greatly improving the motor life, but also than the previous mechanical change To the DC motor is more reliable, the control system is more appropriate. However, each Hall sensor has a lead, and before the brush motor compared to the increase in the number of leads also means that the cost of a certain increase, but also increased the risk of failure. Brushless Hallless DC motors on the basis of this eliminates the Hall sensor lead, in reducing the cost on the basis of ensuring the reliability, so get more and more widely used.
　　Brush motor shortcomings
　　Friction large, loss of large: the use of brush motor after a period of time, you need to open the motor to clean the motor carbon brush, time-consuming effort, maintenance strength as much as a family cleaning.
　　Heat, life is short: due to the structure of the brush motor, brush and commutator contact resistance is very large, resulting in a larger overall resistance of the motor, easy to heat, and permanent magnet is a thermal element, if the temperature is too high, Magnet is demagnetized, the motor performance is reduced, affecting the life of the brush motor.
　　Low efficiency, the output power is small: the above mentioned brush motor heating problem, largely because the current work done in the internal resistance of the motor, so the power is converted to a large degree of heat, so the brush motor output power is not , Efficiency is not high.
　　Brushless motor advantages
　　No brush, low interference: brushless motor to remove the brush, the most direct change is that there is no brush motor running when the spark, which greatly reduces the spark on the remote control radio equipment interference.
　　Low noise, smooth operation: brushless motor without brush, running friction greatly reduced, running smoothly, the noise will be much lower, this advantage for the model running stability is a huge support.
　　Long life, low maintenance costs
　　Kunshan Tongmao Electronics Co., Ltd. is a professional manufacturer and manufacturer of high-performance, high-quality linear and swing motion solutions. The main products are voice coil motor, linear motor and high precision linear motor platform. The company's products are direct-drive brushless linear motor, with all the advantages of brushless motor, over the years by virtue of technology and service advantages, by domestic and foreign customers unanimously approved. If you want to know more information about the company, please visit the company official website:www.tmmotion.com/english/index.asp