Driving device for vehicle

A driving device for a vehicle, the driving device comprising:

• a ring gear;
• a final gear meshed with the ring gear;
• a carrier rotatably supporting the final gear;
• a sun gear having a rotation axis parallel to the rotation axis of the ring gear and installed to have a variable inter-axis distance from the rotation axis of the ring gear, the sun gear being configured to receive power from outside;
• a link mechanism interconnecting the sun gear and the final gear such that a connection angle changes depending on a change in the inter-axis distance between the sun gear and the ring gear;
• a gear train provided in the link mechanism to continuously establish a power transmission state between the sun gear and the ring gear regardless of the change in the inter-axis distance between the sun gear and the ring gear;
• and
• a carrier housing integrally coupled to the carrier and encasing the sun gear, the carrier, the ring gear, and the link mechanism;
• wherein the carrier housing comprises
• an outer housing part coupled to a wheel hub, and
• an inner housing part coupled with the outer housing part to form an accommodation space encasing the sun gear, the carrier, the ring gear, and the link mechanism, and having a housing opening through which an input shaft that transmits external power to the sun gear passes, and
• wherein the housing opening of the inner housing part is provided with a sealing member that closes the housing opening to block the accommodation space from outside while absorbing a change in position of the input shaft.