US 12,459,353 B2
In-wheel drive device and vehicle including the same
Kyeong Ho Shin, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Jul. 22, 2024, as Appl. No. 18/779,895.
Application 18/779,895 is a division of application No. 17/384,906, filed on Jul. 26, 2021, granted, now 12,065,035.
Claims priority of application No. 10-2020-0093326 (KR), filed on Jul. 27, 2020.
Prior Publication US 2024/0375506 A1, Nov. 14, 2024
Int. Cl. F16H 57/08 (2006.01); B60B 27/00 (2006.01); B60K 7/00 (2006.01); B60K 17/04 (2006.01); F16H 57/023 (2012.01); F16H 55/17 (2006.01)
CPC B60K 17/046 (2013.01) [B60B 27/0015 (2013.01); B60B 27/0094 (2013.01); B60K 7/0007 (2013.01); F16H 57/023 (2013.01); F16H 57/08 (2013.01); F16H 2055/176 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An in-wheel drive device, comprising:
a motor; and
a speed reducer coupled to one side of the motor, wherein the speed reducer comprises:
a sun gear coupled to a shaft of the motor;
a ring gear disposed outward in a radial direction from the sun gear; and
a speed reducer housing configured to accommodate the sun gear and the ring gear,
wherein an outer surface of the ring gear, in the radial direction, and an inner surface of the speed reducer housing, in the radial direction, adjoin each other to define a first region and a second region,
wherein the ring gear comprises a protruding portion disposed on the outer surface of the ring gear in the second region and having a shape protruding toward the inner surface of the speed reducer housing,
wherein the speed reducer housing comprises a recessed portion disposed on the inner surface of the speed reducer housing in the second region and having a shape corresponding to a shape of the protruding portion of the ring gear,
wherein the protruding portion and the recessed portion engage each other in the second region to define an engagement section, and
wherein the protruding portion has a shape protruding in a width direction from at least one of:
an axial end away from the ring gear of the in-wheel drive device; or
a distal end away from the ring gear of the in-wheel drive device.