Electric motor and electric vehicle having the same

摘要

An electric motor includes a stator, a rotor disposed to be rotatable with respect to the stator, and a cooling unit including a cooling fluid and disposed between the stator and the inverter device to cool the stator and the inverter device. Weight can be reduced, and thus, power consumption of a battery can be reduced and a traveling distance of the vehicle can be increased.

主权项

1. An electric motor comprising:
a stator; a rotor disposed to be rotatable with respect to the stator; a cooling unit including a body having an inner surface, an outer surface, and accommodation space to accommodate cooling fluid, the stator disposed in the inner surface of the body and the outer surface of the body capable of accommodating an inverter device; and a frame disposed at the outer surface of the cooling unit to support the inverter device, wherein the outer surface of the body has a polygonal shape, wherein the inverter device comprises a DC-link capacitor, a PCB, and a switching element, and the frame comprises a DC-link capacitor support portion, a PCB support portion, and a switching element support portion in order to support the DC-link capacitor, the PCB, and the switching element, and wherein the DC-link capacitor support portion is formed at a lower portion of the frame, and the switching element support portion and the PCB support portion are formed above the DC-link capacitor support portion.