公开(公告)号：US09583983B2

公开(公告)日：2017-02-28

申请号：US13905453

申请日：2013-05-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Alfermann ,  Edward L. Kaiser ,  Ryan Van Tiem

IPC: H02K1/18 ,  H02K15/02 ,  H02K15/14

CPC classification number: H02K1/185 ,  H02K15/02 ,  H02K15/14 ,  Y10T29/49009

Abstract: An electric motor assembly includes a housing and a stator. The housing includes an outer housing surface, an inner housing surface defining an interior housing cavity, and a plurality of housing protrusions extending from the inner housing surface. The stator is disposed in the inner housing cavity and includes an outer stator surface, an inner stator surface, and a plurality of stator protrusions extending from the outer stator surface toward the outer housing surface. The stator protrusions are configured to mate with the housing protrusions to frictionally couple the stator to the housing in order to fix the stator relative to the housing.

Abstract translation: 电动机组件包括壳体和定子。 壳体包括外壳体表面，限定内部壳体空腔的内部壳体表面和从内部壳体表面延伸的多个壳体突起。 定子设置在内壳体腔中，并且包括外定子表面，内定子表面和从外定子表面向外壳表面延伸的多个定子突起。 定子突起构造成与壳体突起配合，以将定子摩擦连接到壳体，以便相对于壳体固定定子。

公开(公告)号：US20150069865A1

公开(公告)日：2015-03-12

申请号：US14023924

申请日：2013-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Alfermann ,  Brian Gallert

IPC: H02K9/19

CPC classification number: H02K9/19

Abstract: An electric motor includes a rotor and a stator. The stator is fixed with respect to the drive-unit housing and includes windings, and the rotor is configured to rotate inside the stator about an axis. An air gap is defined between the rotor and the stator. The electric motor also includes an end-ring fixed to the rotor for rotation therewith. The electric motor is cooled by gravity feed via a fluid flowing onto and past the stator windings, from the windings to the rotor, and from the rotor back to the stator. The end-ring includes an annular channel configured to catch the fluid flowing from the windings to the rotor and divert the fluid away from the air gap as the fluid flows from the rotor back to the stator, thereby limiting spin losses in the electric motor. An electro-mechanical drive-unit employing the above-described electric motor is also disclosed.

Abstract translation: 电动机包括转子和定子。 定子相对于驱动单元壳体固定并且包括绕组，并且转子构造成围绕定子围绕轴线旋转。 在转子和定子之间限定气隙。 电动机还包括固定到转子上的端环，用于与其一起旋转。 电动机通过重力进给通过流经和绕过定子绕组的流体从绕组到转子以及从转子回到定子来冷却。 端环包括环形通道，其构造成当流体从转子返回到定子时将从绕组流动的流体捕获到转子并将流体从空气间隙转移，从而限制电动机中的自旋损失。 还公开了采用上述电动机的机电驱动单元。

公开(公告)号：US20140354107A1

公开(公告)日：2014-12-04

申请号：US13905453

申请日：2013-05-30

Applicant: GM Global Technology Operations LLC

Inventor： Timothy J. Alfermann ,  Edward L. Kaiser ,  Ryan Van Tiem

IPC: H02K1/18 ,  H02K15/02

CPC classification number: H02K1/185 ,  H02K15/02 ,  H02K15/14 ,  Y10T29/49009

Abstract: An electric motor assembly includes a housing and a stator. The housing includes an outer housing surface, an inner housing surface defining an interior housing cavity, and a plurality of housing protrusions extending from the inner housing surface. The stator is disposed in the inner housing cavity and includes an outer stator surface, an inner stator surface, and a plurality of stator protrusions extending from the outer stator surface toward the outer housing surface. The stator protrusions are configured to mate with the housing protrusions to frictionally couple the stator to the housing in order to fix the stator relative to the housing.

Abstract translation: 电动机组件包括壳体和定子。 壳体包括外壳体表面，限定内部壳体空腔的内部壳体表面和从内部壳体表面延伸的多个壳体突起。 定子设置在内壳体腔中，并且包括外定子表面，内定子表面和从外定子表面向外壳表面延伸的多个定子突起。 定子突起构造成与壳体突起配合，以将定子摩擦连接到壳体，以便相对于壳体固定定子。

公开(公告)号：US09203285B2

公开(公告)日：2015-12-01

申请号：US14023924

申请日：2013-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Alfermann ,  Brian Gallert

IPC: H02K9/19

CPC classification number: H02K9/19

Abstract: An electric motor includes a rotor and a stator. The stator is fixed with respect to the drive-unit housing and includes windings, and the rotor is configured to rotate inside the stator about an axis. An air gap is defined between the rotor and the stator. The electric motor also includes an end-ring fixed to the rotor for rotation therewith. The electric motor is cooled by gravity feed via a fluid flowing onto and past the stator windings, from the windings to the rotor, and from the rotor back to the stator. The end-ring includes an annular channel configured to catch the fluid flowing from the windings to the rotor and divert the fluid away from the air gap as the fluid flows from the rotor back to the stator, thereby limiting spin losses in the electric motor. An electro-mechanical drive-unit employing the above-described electric motor is also disclosed.

Abstract translation: 电动机包括转子和定子。 定子相对于驱动单元壳体固定并且包括绕组，并且转子构造成围绕定子围绕轴线旋转。 在转子和定子之间限定气隙。 电动机还包括固定到转子上的端环，用于与其一起旋转。 电动机通过重力进给通过流经和绕过定子绕组的流体从绕组到转子以及从转子回到定子来冷却。 端环包括环形通道，其构造成当流体从转子返回到定子时将从绕组流动的流体捕获到转子并将流体从空气间隙转移，从而限制电动机中的自旋损失。 还公开了采用上述电动机的机电驱动单元。