US 11,888,377 B2
Axle assembly having an electric motor module
Tomaz Varela, Troy, MI (US); Somalingayya G. Math, Troy, MI (US); and Brian Hayes, Troy, MI (US)
Assigned to ArvinMeritor Technology, LLC, Troy, MI (US)
Filed by ArvinMeritor Technology, LLC, Troy, MI (US)
Filed on Mar. 30, 2021, as Appl. No. 17/217,055.
Prior Publication US 2022/0320946 A1, Oct. 6, 2022
Int. Cl. H02K 5/20 (2006.01); B60K 1/00 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01); H02K 9/19 (2006.01)
CPC H02K 5/203 (2021.01) [B60K 1/00 (2013.01); H02K 7/006 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); B60K 2001/006 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An axle assembly comprising:
an electric motor module that includes:
a rotor that is rotatable about a rotor axis;
a rotor shaft that extends from the rotor and is rotatable about the rotor axis with the rotor;
a stator that encircles the rotor;
a coolant jacket that encircles the stator and that has a set of channels that are open in a direction that faces away from the rotor axis;
an end plate that engages and is fixedly attached to an end of the coolant jacket and that supports the rotor shaft; and
a motor housing that encircles a portion of the coolant jacket, wherein the motor housing is spaced apart from the end plate, the end plate is not received inside the motor housing, and the end plate does not encircle the coolant jacket;
wherein multiple members of the set of channels are received inside the motor housing and the remaining members of the set of channels are not received inside the motor housing.