What caused the demagnetization of the front drive geared electric bicycle motor
 2021/04/02 | View:240

Have you ever encountered such a problem: electric car climbing is not powerful, or riding when the car suddenly shaking, rear wheel parts and strange sound, or electric car range down, change the battery is still not better ...... If you have encountered these problems, it is likely that your front drive geared electric bicycle motor demagnetization. At this point, when you disassemble the front drive geared electric bicycle motor, you will find that it is already rusty inside.


So what caused the demagnetization of the front drive geared electric bicycle motor? Is there any way to avoid it? The next fat to answer these two questions for you. What causes the demagnetization of the front drive geared electric bicycle motor? First, we need to understand the composition of the motor. The motor is mainly composed of stator, rotor, coil, magnet sheet, Hall components and other parts. The demagnetization of the motor means that the magnetism of the magnet sheet is weakened. And to say that the culprit of demagnetization, when the high temperature and water.


First, a high temperature front drive geared electric bicycle motor is located in the rear wheel of the electric car, responsible for converting the electrical energy stored in the battery into mechanical energy, so that the electric car runs, the process will generate a lot of heat. At present, almost all front drive geared electric bicycle motors on the market are cooled by the wind generated while riding. Air-cooled cooling is inefficient, and the internal temperature of the motor will soon rise. Long-term high-temperature environment, the magnetism of the magnetic steel sheet will naturally slowly fade.

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Second, into the water motor temperature will rise when working, and the temperature will quickly drop after stopping. A hot and a cold, will lead to internal air thermal expansion and contraction to form a pressure difference, external water vapor, dust will be pressed into the motor through a variety of tiny gaps. Water vapor and dust in easy to come out difficult, and over time the motor will appear inside the water. High temperature + humidity, containing iron elements of the magnetic steel sheet is easy to oxidation rust, thus producing demagnetization phenomenon. If you often ride in water, the probability of water ingress will be greater, and the demagnetization of the motor will come more quickly. Is there any way to avoid it?


Since we know that high temperature and water are the two culprits of demagnetization, we can solve the problem by prescribing the right remedy. We can use the liquid cooling method, which can not only efficiently dissipate heat, but also effectively prevent water ingress. Not only effectively solve the problem of demagnetization of the front drive geared electric bicycle motor, but also can be used for a long time as new.