The difference between brushless motors and brush generator sets
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A, brushless and brush motor performance comparison
1. Large friction and large loss Some friends often encounter this problem when using a brush motor, that is, after using the motor for a period of time, it is necessary to open the motor to clean the carbon brush of the motor, which is time-consuming and labor-intensive. The maintenance strength is no less than one. Family cleaning.
2, large heat, short life due to the structure of the brush motor, brush and commutator contact resistance is large, resulting in a larger overall resistance of the motor, easy to heat, and the permanent magnet is a thermal element, if the temperature is too high Magnets will demagnetize and degrade motor performance, affecting the life of brushed motors.
3, low efficiency, small output power above mentioned brush motor heating problem, to a large extent because the current power in the motor internal resistance, so the energy has largely transformed into heat, so the output power of the brush motor is not Large and inefficient.
Second, the advantages of brushless motor
1. The brushless, low-interference brushless motor removes the brush. The most direct change is that there is no electric spark generated when the brushed motor is running, which greatly reduces the interference of the electric spark on the remote radio equipment.
2, low noise, smooth running brushless motor without a brush, running friction is greatly reduced, running smoothly, the noise will be much lower, this advantage for the stability of the model is a huge support for the operation.
3, long life, low maintenance costs less brush, brushless motor wear is mainly in the bearing, from a mechanical point of view, brushless motor is almost a maintenance-free motor, and when necessary, just do Some dust removal can be maintained.
With fewer brushes, the wear of the brushless motor is mainly on the bearing. From the mechanical point of view, the brushless motor is almost a kind of maintenance-free motor. When necessary, only some dust removal and maintenance can be done.
From the comparison between the next one and the next, we know where the advantages of brushless motors are compared to brushed motors, but everything is not absolute. Brushless motors have excellent performance at low speeds, high torque, and large torque. Brushless motors are irreplaceable, but With regard to the ease of use of the brushless motor, the brushless power system is undergoing rapid development and popularization with the cost reduction trend of the brushless controller and the development of the brushless technology at home and abroad. The development of domestic brushless motors.