US 11,990,818 B2
In-wheel motor for electric vehicle and sealing apparatus for protecting in-wheel motor
Jae Woong Chung, Incheon (KR); Hye-Young Jeong, Gimpo-si (KR); and Mi-Rim Jung, Gimpo-si (KR)
Assigned to MOTEK INCORPORATED CO., LTD, Incheon (KR)
Filed by MOTEK Incorporated Co., Ltd, Incheon (KR)
Filed on Apr. 22, 2022, as Appl. No. 17/727,474.
Claims priority of application No. 10-2022-0021014 (KR), filed on Feb. 17, 2022.
Prior Publication US 2023/0261539 A1, Aug. 17, 2023
Int. Cl. H02K 5/10 (2006.01); B60K 7/00 (2006.01); F16J 15/52 (2006.01); H02K 7/00 (2006.01); H02K 7/08 (2006.01)
CPC H02K 5/10 (2013.01) [B60K 7/0007 (2013.01); F16J 15/52 (2013.01); H02K 7/003 (2013.01); H02K 7/08 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An in-wheel motor for an electric vehicle, comprising:
a motor body (1) including a wheel hub (11) on one side; and
a sealing apparatus (2) mounted to the motor body (1) on the opposite side to the wheel hub (11),
wherein the sealing apparatus (2) comprises:
a first support (510) fixedly coupled to a motor shaft (14) of the motor body (1);
a second support (520) fixedly coupled to the motor shaft (14) and disposed outside the first support (520);
a third support (530) covering an outer surface of the first support (510) and an outer circumferential surface of the second support (520), and rotated when the motor is operated; and
a fourth support (540) coupled to an outer surface of the second support (520) and rotated when the motor is operated,
wherein the sealing apparatus (2) further comprises an encased seal (640) disposed between the second support (520) and the third support (530).