US 12,463,504 B2
Drive unit having a buffer chamber that separates a motor chamber from a storage portion
Takashi Wakui, Saitama (JP); Shinji Kato, Saitama (JP); and Masaru Sora, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Aug. 5, 2024, as Appl. No. 18/794,382.
Prior Publication US 2025/0055349 A1, Feb. 13, 2025
Int. Cl. H02K 9/19 (2006.01); H02K 11/30 (2016.01)
CPC H02K 9/19 (2013.01) [H02K 11/30 (2016.01)] 8 Claims
OG exemplary drawing
 
1. A drive unit comprising:
a drive motor;
a drive unit case having a motor chamber in which the drive motor is accommodated;
a heat exchanger configured to cool a cooling fluid for cooling the drive motor; and
a storage portion configured to store the cooling fluid,
wherein the drive unit case is formed with a buffer chamber separated from the motor chamber and adjacent to the motor chamber, the buffer chamber being divided from the motor chamber by a dividing wall, and
the storage portion is provided at a position isolated from the motor chamber with the buffer chamber interposed therebetween.