Abstract:-In wheel motor is a new advance technology which the electric motor isintegrated within the wheels. The in-wheel electric motor is fitted right intothe wheel rim of the vehicle. Locating the Electric motor in or behind thewheel offers many advantages. It eliminates the need for the Conventionalengine, transmission differential and the other power train components.
In certain applications, such as inthe transportation industry with traction motors, electric motors can operatein both motoring and generating or braking modes to also produce electricalenergy from mechanical energy. In this thesis, An analysis was conducted tostudy the heat transfer of in-wheel electric motor cooling fin for lightelectric vehicle application. This study focuses on motor housing design andheat transfer analysis of different cooling fins arrangement for motor housing.The design of the cooling fin on the motor housing is important to ensure anefficient thermal management, an optimum output power, reliable and safeoperation to the user. Three types of cooling fin arrangement on the motorhousing has been selected and modelled in PRO-ENGINEER software. There werestraight fin, slanting fin and transverse fin. Then, all models were exportedto ANSYS for heat transfer analysis purpose.
Areplicate of wind tunnel test was used to simulate the analysis. All thevariables are kept constant during the analysis such as materials thermalproperties, air temperature and air velocity. Results of the analysis arepresented in the figure and graph of temperature distribution, velocity vector,total heat transfer and maximum temperature. It has been found that thestraight fin arrangement has highest efficiency of temperature distributionwith the lowest total heat transfer rate of 2056.91 W.