Automobile electronic fan is controlled by a thermostat, when the water temperature rise is the highest limit temperature controller, power supply is connected the fan start working, turn off the power supply to stay under the water temperature drops to limit the thermostat, fan to stop working.

1, electronic fan motor work when the current is big, the conductor to use demand is high, the work will produce a certain quantity of heat, generic use low material specifications, calorific value is big, easy to cause the vehicle fire.

2. High speed rotation in the work of electronic fan, high requirement for manufacturing process. It is very difficult to achieve the design requirements for the dynamic balance of imitation parts. The vibration is large in the vehicle, and it will be loose after long running.