来源：http://www.jnmcd.com 发布时间：2019-03-11 浏览：次
1. The difference of performance between brushless motor and brushless motor: brushless motor
1. Great friction and loss
Many friends often encounter this problem when using brush motor. That is, after using the motor for a period of time, they need to turn on the motor to clear the carbon brush of the motor, which is time-consuming and laborious, and the maintenance intensity is no less than a household cleaning.
2. High fever and short life
Because of the structure reason of brush motor, the contact resistance between brush and commutator is very large, which makes the whole resistance of brush motor larger and easy to heat. Permanent magnet is a thermal element. If the temperature is too high, the magnet will demagnetize, which will reduce the performance of motor and affect the life of brush motor.
3. Low efficiency and low output power
Brush motor heating problem, a large level is due to the current work on the internal resistance of the motor, so the electric energy has a large level of conversion into heat energy, so the output power of brush motor is not large, and the efficiency is not high.
2. The difference of performance between brushless motor and brushless motor: brushless motor
1. Brushless, Low Interference
Brushless motor removes the brush, the most direct change is that there is no spark when the brush motor is running, which greatly reduces the interference of the spark to the remote control radio equipment.
2. Low noise and smooth operation
Brushless motor has no brush, friction is greatly reduced when running, running smoothly, and noise will be much lower. This advantage is a great support for the stability of the model operation.
3. Long life, low maintenance cost and less brush
Brushless motor wear is mainly on bearings, from a mechanical point of view, brushless motor is a maintenance-free motor, when necessary, only need to do some dust removal maintenance.
3. The Difference between Brushless Motor and Brushless Motor in Applicable Scope
Brushless motor: Usually used in equipment with high control request and speed, such as aeromodelling, fine instruments and instruments, etc. to control the speed of motor severely, the equipment with high speed and high-end equipment are used.
Brush motor: Usually the power equipment is used with brush motor, such as hair dryer, factory motor, household lampblack machine, etc. In addition, the speed of series motor can reach high, but because of the wear and tear of carbon brush, the service life of brushless motor is not as good as that of brushless motor.
4. The difference between brushless motor and brushless motor in operation effect
Brushless motor: usually digital frequency conversion control, strong controllability, from a few revolutions per minute to tens of thousands of revolutions per minute can be easily completed.
Brushless motors: Brushless motors work at a constant speed after normal start, speed regulation is not easy, series motor can also reach 20,000 rps, but the service life will be shorter.
5. Differences between Brushless Motor and Brushless Motor in Energy Conservation and Environmental Protection
Brushless motor controlled by frequency conversion technology will save much energy than series motor, the most typical is frequency conversion air conditioning and refrigerators.
6. Differences between Brushless Motor and Brushless Motor in Maintenance
Carbon brush motor needs to be replaced by carbon brush motor. If it is not replaced in time, it will cause motor damage. Brushless motor has a long service life, usually more than 10 times as long as brush motor. But if it is broken, it needs to be replaced, but daily maintenance is not required at all.
7. Differences in Noise between Brushless Motor and Brushless Motor
Noise has nothing to do with whether there is a brush motor or not. It mainly depends on the matching condition of bearing and clicking on internal components.