| 摘要 |
A device for driving a rear wheel of an electric vehicle is provided, which can assemble a motor from the exterior side to the interior side of a vehicle, can simplify a structure of a trailing arm by providing a fastening part having a large outer diameter at a wheel side, can reduce the load of a motor cover by fastening the motor cover to the inside of the trailing arm and fastening an axle housing to the outside of the trailing arm, and can improve packaging performance by assembling a final gear and a tone wheel on a rear surface of a wheel while nut-fastening an output shaft on a front surface of the wheel, which is a dead space. In one embodiment, the rear wheel driving device includes a motor for supplying rotational power, a gear group connected to a rotor of the motor, a final gear connected to the gear group, an output shaft connected to the final gear and rotating, a hub installed on an outer circumferential surface of the output shaft using a nut, a wheel connected to the hub, an axle housing connected to the hub using a hub bearing, a motor cover protecting the motor and mounting an output shaft bearing, and a trailing arm connected to the axle housing using an axle housing bolt and configured to mount the motor from an exterior side to an interior side of a vehicle. |
