Technical requirements for drive motor
High torque: high torque during low-speed operation to meet the requirements of fast start, acceleration, climbing, etc;
High speed: it shall have high speed during high-speed operation
New energy motor bearing
Bearing speed up to 20.000 R / min The n value is more than 800000, which is much higher than that of ordinary industrial motors. In order to ensure the effective and reliable operation of rolling bearings, sufficient lubrication must be provided to prevent direct metal to metal contact between rolling elements, raceways, cages and other components. The lubricant can also prevent wear and protect the bearing surface from corrosion. Proper lubrication is a necessary condition for the reliable operation and expected service life of rolling bearings JXN new energy high-speed motor bearing series is recommended to use special grease for jXN high-speed motor bearing. It has better lubrication performance under the operating environment of high speed and high temperature. New energy high-speed motor bearings are filled with different types of high-temperature resistant high-speed standard grease according to different series. The grease life of the bearing depends on the working temperature and speed factors. The grease filled in the bearing of jXN new energy high-speed motor can significantly improve the service life in high-temperature and high-speed environment. To calculate the service life of the bearing under specific working conditions, please contact jXN application engineering service department
Temperature: - 40 ~ 150 ℃, the bearing operates stably without whistling; Long term working temperature 110 ~ 130 ℃; In cold areas, the starting temperature is - 30 ~ - 20 ℃, the starting torque is small and the noise is low.
Lubrication: the grease is required to have excellent low temperature performance, high temperature resistance, vibration resistance, energy saving, high efficiency and long service life.
Vibration and noise: in order to ensure the comfort of riding, the vibration and noise level of the motor shall be low to ensure the quietness in the car.
Electric erosion: there is potential difference between rotors due to the imbalance of windings, resulting in current; Current leakage caused by high-frequency voltage of inverter may lead to electric corrosion of bearing and failure of bearing.
Service life: guarantee the same service life as the whole vehicle warranty for 5-8 years or 100000-160000 km.
Technical requirements for drive motor
High torque: high torque during low-speed operation to meet the requirements of fast start, acceleration, climbing, etc;
High speed: when operating at high speed, it shall have the characteristics of high speed and wide speed regulation range to meet the requirements of high-speed driving and overtaking;
High efficiency and energy saving: electric vehicles start and stop frequently and have a wide working area. Therefore, it is required to have as wide an efficient working area as possible in order to make the driving mileage of the battery as long as possible after one-time charging;
Anti vibration: the motor is resistant to vibration, has certain overload capacity, and can work stably and reliably under different working conditions
