US 12,381,437 B2
Drive unit for improving waterproof performance of a connector
Daisuke Hanaoka, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Apr. 12, 2023, as Appl. No. 18/133,756.
Claims priority of application No. 2022-075373 (JP), filed on Apr. 28, 2022.
Prior Publication US 2023/0353005 A1, Nov. 2, 2023
Int. Cl. H02K 5/10 (2006.01); H02K 5/22 (2006.01); H02K 11/33 (2016.01)
CPC H02K 5/10 (2013.01) [H02K 5/225 (2013.01); H02K 11/33 (2016.01)] 7 Claims
OG exemplary drawing
 
1. A drive unit comprising:
a rotary electric machine;
a first housing that houses the rotary electric machine;
an electric-power control device that controls the rotary electric machine;
a second housing that is attached to an upper surface of the first housing and houses the electric-power control device; and
a connector that has a connector terminal for electrically connecting the rotary electric machine and the electric-power control device, and that is fixed to the upper surface of the first housing,
wherein the connector includes
a base portion that is fixed to the upper surface of the first housing,
the connector terminal that is provided at the base portion,
a seal groove that is provided in the base portion so as to surround the connector terminal and in which a seal member is disposed, and
a discharge portion that communicates with the seal groove and from which a liquid flowing along the seal groove is discharged,
wherein the discharge portion has an insertion hole through which a fixing member for fixing the connector to the first housing is inserted, and
wherein a communication portion communicating between the seal groove and the discharge portion is provided between the insertion hole and the seal groove.