US 12,438,416 B2
Drive unit with selectively engageable torque converter and reducer
Yoshihiro Matsuoka, Neyagawa (JP)
Assigned to EXEDY CORPORATION, Neyagawa (JP)
Filed by EXEDY Corporation, Neyagawa (JP)
Filed on Mar. 1, 2023, as Appl. No. 18/176,622.
Claims priority of application No. 2022-061732 (JP), filed on Apr. 1, 2022.
Prior Publication US 2023/0327515 A1, Oct. 12, 2023
Int. Cl. H02K 7/116 (2006.01); H02K 7/00 (2006.01); H02K 7/108 (2006.01)
CPC H02K 7/116 (2013.01) [H02K 7/003 (2013.01); H02K 7/108 (2013.01); H02K 7/006 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A drive unit comprising:
an electric motor;
a torque converter configured to amplify a torque generated by the electric motor when the torque is directed in a first rotational direction;
a reducer configured to output the torque by reducing a speed of rotation of the electric motor;
a first shaft configured to transmit the torque from the electric motor to the torque converter;
a second shaft configured to transmit the torque from the torque converter to the reducer; and
a clutch disposed in an interior of the reducer, the clutch configured to allow or block transmission of the torque between the first shaft and the second shaft;
wherein the second shaft has a cylindrical shape,
the first shaft axially extends through an interior of the second shaft,
the clutch is disposed radially between the first shaft and the second shaft,
the first shaft includes an extending portion and an attachment portion with an outer surface that is in contact with the clutch, the attachment portion causing the clutch to be attached thereto, the extending portion extending from and beyond the attachment portion and through an interior of the torque converter toward a distal end of the first shaft in an axial direction, and
the extending portion is smaller in diameter than the attachment portion.