Automobile waterway patent

What you want to ask is why the stator of the motor is cooled by water channel and the rotor is not cooled by water channel? The water flow of the air cooler takes away heat and gives off heat.

1. The water flow of air cooler takes away heat: the rotor is not specially cooled, and there is an air cooler specially used to cool the generator in the upper wind tunnel, and the water flows through the air cooler to take away heat.

2. Heat dissipation: The rotor of the motor is not cooled separately and effectively, but the heat of the stator can be dissipated by heat dissipation.