More and more people begin to use electric vehicles, and the core of electric vehicles is the motor. Let's have a deep understanding of electric vehicle motors.

Type of electric vehicle motor:

Brush high-speed motor. This kind of motor has high efficiency, strong overload climbing ability and large starting force. It can output power after being decelerated by the variable speed gear device, and the noise is large.

Brushless low-speed motor. The non reduction gear device has the advantages of maintenance free and noise free, but the controller is complex, the starting current is large, and the overload climbing ability is poor.

Brush low-speed motor. The gear device without reducer has simple structure, low cost, poor overload capacity and high power consumption when starting uphill. Due to the high speed of the brush high-speed motor, it needs to output large torque power after being decelerated by the reduction gear device, so its noise is relatively higher than that of the low-speed motor.

Connection method of electric vehicle motor: judgment of phase angle of brushless motor. Brushless motor phase angle is the abbreviation of brushless motor phase algebraic angle, which refers to the angle that the internal current direction of each coil of brushless motor changes in a power cycle. The common phase algebraic angles of brushless motors for electric vehicles are 120 ° and 60 °. Wiring method of brush motor. Brushless motors generally have positive and negative leads. Generally speaking, the red line is the positive pole and the black line is the negative pole. If the positive and negative poles are interchanged, the motor will only reverse and generally will not damage the motor.

What to do if the electric vehicle motor is flooded: the electric vehicle motor is the core component of the electric vehicle. If it is damaged, the electric car will not run. Especially in rainy days, it is impossible to push the electric vehicle into the house, which will cause water to enter the electric vehicle motor. If there is water in the motor of electric vehicle, it may cause the motor to burn out at high temperature, resulting in internal short circuit of the motor.

In this case, you can put the electric car aside for a few hours. If the electric vehicle can operate normally, the electric motor of the electric vehicle is normal; In addition, you can disassemble the motor of the electric motorcycle to remove the moisture inside the motor, or you can go to the after-sales service department for testing, and let professionals clean the moisture inside the motor.