公开(公告)号：US20240364160A1

公开(公告)日：2024-10-31

申请号：US18308722

申请日：2023-04-28

申请人： FCA US LLC

发明人： Prashant Modi ,  Dhafar Al-Ani

IPC分类号： H02K1/32 ,  H02K9/19

CPC分类号： H02K1/32 ,  H02K9/19

摘要： An electric motor having a rotor, a stator and a thermal management system is provided. The thermal management system includes: a hollow shaft having an internal channel and one or more shaft radial channels in communication with the internal channel and extending radially outward therefrom though the shaft; a rotor coupled to the hollow shaft for rotation therewith, the rotor including axial channels extending axially through a core of the rotor and one or more rotor radial channels corresponding to and aligning with the one or more shaft radial channels, the rotor radial channels being in communication with the axial channels and the internal channel of the shaft via the shaft radial channels; wherein the electric motor is adapted to receive oil into the hollow shaft and route the same to the rotor axial channels via the one or more shaft and rotor radial channels to cool the rotor core.

公开(公告)号：US20240322649A1

公开(公告)日：2024-09-26

申请号：US18186475

申请日：2023-03-20

申请人： FCA US LLC

发明人： Sachin Ganakota ,  Shreyas Kapatral ,  Steven L Hayslett ,  Brandon R Given ,  Dhafar Al-Ani

IPC分类号： H02K9/193 ,  F16H57/04 ,  H02K5/15 ,  H02K5/20 ,  H02K7/116

CPC分类号： H02K9/193 ,  F16H57/0436 ,  F16H57/0452 ,  F16H57/0476 ,  H02K5/15 ,  H02K5/203 ,  H02K7/116 ,  F16H2057/02034

摘要： An electric machine configured to generate and transfer drive torque to a driveline for propulsion of an electric vehicle includes a gearbox assembly, an electric motor having a rotor and a stator having end windings, and a thermal management system. The thermal management system includes a first end plate disposed at an axial end of the rotor. The first end plate has a central hub and an overhang. The overhang includes an outwardly extending radial rim and a lip. The radial rim includes an outer surface, an inner surface, and at least two passages defined therethrough. The first end plate facilitates cooling of the electric motor by directing fluid (i) off of the outer surface of the radial rim and onto an inner diameter of the end windings, and (ii) through the at least two passages and onto the inner diameter of the end windings.

公开(公告)号：US20240162762A1

公开(公告)日：2024-05-16

申请号：US17987410

申请日：2022-11-15

申请人： FCA US LLC

发明人： Reemon Zaki Saleem Haddad ,  Dhafar Al-Ani

IPC分类号： H02K1/18 ,  H02K1/20

CPC分类号： H02K1/185 ,  H02K1/20

摘要： A stator assembly for an electric machine includes a plurality of stator laminations arranged in a stacked configuration and a plurality of apertures formed in each of the stator laminations. The plurality of apertures of the plurality of stator laminations are aligned to form a plurality of channels in the stacked configuration. A damping material is disposed in at least one channel of the plurality of channels to increase stiffness in the stacked configuration and reduce noise/vibration/harshness (NVH) in the electric machine.