US 12,135,084 B2
Drive apparatus
Shuhei Nakamatsu, Kyoto (JP); Shinsuke Mizukami, Kyoto (JP); Tsubasa Tamura, Kyoto (JP); and Keisuke Aso, Kyoto (JP)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Filed by NIDEC CORPORATION, Kyoto (JP)
Filed on Dec. 11, 2023, as Appl. No. 18/536,101.
Application 18/536,101 is a continuation of application No. 17/392,260, filed on Aug. 3, 2021, granted, now 11,873,897.
Claims priority of application No. 2020-136250 (JP), filed on Aug. 12, 2020.
Prior Publication US 2024/0102556 A1, Mar. 28, 2024
Int. Cl. F16H 63/34 (2006.01); F16H 57/04 (2010.01); H02K 9/19 (2006.01)
CPC F16H 63/3483 (2013.01) [F16H 57/0424 (2013.01); F16H 57/0476 (2013.01); F16H 63/3458 (2013.01); H02K 9/19 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A drive apparatus, comprising:
a motor that has a motor shaft extending in an axial direction;
a transmission mechanism that is connected on one side in the axial direction of the motor shaft;
a lock mechanism that restricts driving of the transmission mechanism;
a housing that houses the motor, the transmission mechanism, and the lock mechanism;
an oil that is stored in the housing; and
an oil passage that circulates the oil, wherein
the housing includes:
a motor room that houses the motor,
a gear room that houses the transmission mechanism and the lock mechanism, and
a partition that is provided between the motor room and the gear room, and
the oil passage includes:
a pump that pumps the oil in the oil passage,
a first feed flow passage that feeds the oil to the motor, and
a second feed flow passage that feeds the oil to the lock mechanism,
the first feed flow passage includes:
a motor feed flow passage feeding the oil to the motor, and
a flow passage, which connects the gear room to the motor feed flow passage, and is connected to the motor feed flow passage on the other side in the axial direction,
the second feed flow passage penetrates the partition in the axial direction, and
the first feed flow passage is connected to the second feed flow passage provided in the partition.