Common causes of overheating in new energy motors include internal motor malfunctions, stator deformation, and water inside the motor. Let's take a look at the specific malfunctions and solutions.
1. Internal motor fault
Cause: The internal failure of the motor may be caused by the bearings, because the bearings bear the rolling speed, and once the gap between the steel balls increases, the stator and rotor inside the motor will rub against each other, causing internal carbon burning.
Solution: Replace with high-quality bearings promptly.
2. There is water inside the motor.
Cause: Some car models have motors that are not well sealed. When it rains or there is standing water, water can enter the motor. Although this does not affect the motor's operation, it will eventually affect the motor's efficiency, leading to reduced motor power, increased temperature, and overheating.
3. Stator deformation
Cause: Some manufacturers use stators with poor rigidity in order to reduce production costs. These stators are prone to deformation, which causes the motor to deviate from its normal track during rotation, resulting in uneven heating and overheating.
Solution 1: Replace with a stator that is more rigid and less prone to deformation.
Solution 2: Ensure the motor is properly sealed. If water gets into the motor, clean out the accumulated water promptly.
4. Caused by the coil
Cause: The heating of the motor is related to the material used in the coil. Generally, car motors use pure copper wire windings, which not only saves electricity and does not heat up, but also provides strong power. However, some motors on the market now use copper-clad aluminum or aluminum-clad copper materials, which will cause the motor temperature to rise during operation.
In addition, the thickness of the motor coil turns also causes the motor to heat up. Different internal materials of the coil will result in differences in power, power consumption, and heat generation. The thinner the coil turns, the greater the heat generation.
Solution: Use a pure copper wire winding coil that meets higher standards.
The above explains the reasons and solutions for motor overheating warnings in new energy vehicles. While motors do generate heat during prolonged high-speed operation, the temperature should not exceed 60 degrees Celsius. If it does, it may indicate a malfunction that needs to be addressed promptly to prevent damage and potential motor failure.
