Electric Motor Air Cooling System

Air cooling uses the principle of convection to transfer heat away from the battery pack.

Electric motor air cooling system.

For ac induction motors cooling air is usually circulated internally and externally by one or more fans mounted on the rotor shaft. This is the most common method for cooling electric motors you will find in the industry. In this cooling method the electric motor is essentially cooled by free convection current from the air. This is protected by a perforated cowl which also protects inquisitive fingers from the fan blades.

As air runs over the surface it will carry away the heat emitted by the pack. This factor is important for motor cooling if the ambient air density is good it will effected for reduction of heat transfer from the electric motor. The different methods of cooling rotating machines are classified in the standards iec 34 6 and as 1359 21. Using fins to cool the electric car battery has fallen out of favor since the additional weight of the fins outweighs the cooling benefits.

Below is several factors affecting rate of heat transfer for electric motor cooling 1. Ic 418 with this cooling method the motor is cooled by an air. Ic 411 in this cooling method the motor is cooled by a fan mounted on the motor shaft. Another common method for keeping electric motors cool is forced draught air cooling.

Electric motor cooling systems. How to control temperature for electric motor the best method is with motor cooling system basically heat generated during motor running will be transferred to the ambient air surrounding. Ambient air density. The cooling system of electric motor or generator consists of water tanks fans pumps thermostats thermostats compensating kettle the engine is a machine that converts other forms of mechanical energy from the cylinder block to the water liner in the cylinder head some cars also have a water temperature sensor plug.

To allow for operation of the machine in either direction of rotation fans are usually of the bi directional type and made of a strong plastic material aluminum.