公开(公告)号：US20160248286A1

公开(公告)日：2016-08-25

申请号：US14932590

申请日：2015-11-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward L. Kaiser ,  Peter J. Savagian ,  Khwaja M. Rahman

IPC: H02K1/28 ,  H02K15/03 ,  H02K1/27

CPC classification number: H02K15/03 ,  H02K1/246 ,  H02K1/2766

Abstract: An improved rotor assembly configured for magnets with differing lengths, and methods and systems for manufacturing the same. The rotor assembly may be created by selectively creating first and second tabs extending into apertures of lamination sheets. The first and second tabs may be selectively removed, depending on the different magnet lengths and the specific lamination sheet, according to one of a first finishing schedule and a second finishing schedule. The lamination sheets are stacked with any remaining first and second tabs, and other features, aligned.

Abstract translation: 构造成用于具有不同长度的磁体的改进的转子组件，以及用于制造该组件的方法和系统。 可以通过选择性地创建延伸到层压片的孔中的第一和第二突片来创建转子组件。 根据不同的磁体长度和特定层压片，可以根据第一精加工程序和第二精加工程序中的一个选择性地去除第一和第二凸片。 层压片材与任何剩余的第一和第二突片和其它特征层叠。

公开(公告)号：US09252637B2

公开(公告)日：2016-02-02

申请号：US13870034

申请日：2013-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Micah Joel Fuchs ,  Edward L. Kaiser

IPC: H02K3/48 ,  H02K3/52

CPC classification number: H02K3/48 ,  H02K3/527

Abstract: A coil retainer for a rotor includes a flat body and a longitudinal spine. The flat body has a first thickness and the longitudinal spine has a second thickness greater than the first thickness. The coil retainer may also include a central rib, which has a third thickness. The central rib runs laterally relative to the flat body and the third thickness of the central rib is greater than the first thickness.

Abstract translation: 用于转子的线圈保持器包括平坦体和纵向脊柱。 扁平体具有第一厚度，并且纵向脊具有大于第一厚度的第二厚度。 线圈保持器还可以包括具有第三厚度的中心肋。 中心肋相对于平坦体横向延伸，中央肋的第三厚度大于第一厚度。

公开(公告)号：US20140167547A1

公开(公告)日：2014-06-19

申请号：US13715047

申请日：2012-12-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Hao ,  Khwaja M. Rahman ,  Edward L. Kaiser ,  Rolf Blissenbach

IPC: H02K1/27 ,  H02K1/16

CPC classification number: H02K21/16 ,  H02K3/28

Abstract: An electric machine includes a stator core defining a number of stator slots (Z). A rotor assembly is positioned at least partially within the stator core. The rotor assembly includes at least one permanent magnet and defines a number of poles (M). A plurality of stator windings are positioned in the number of stator slots and define a number of phases (M). The machine defines a non-integer slots per pole per phase value (X), which is expressed as a mixed fraction in the form of A.(B/C), where A, B and C are integers. Optimal configurations for the electric machine are specified that maximize torque while minimizing torque ripple, noise and manufacturing complexity. In one embodiment, the slots per pole per phase value (X) is 2½. In another embodiment, the slots per pole per phase value (X) is 3½.

Abstract translation: 电机包括限定多个定子槽（Z）的定子铁芯。 转子组件至少部分地定位在定子芯内。 转子组件包括至少一个永磁体并且限定多个极（M）。 多个定子绕组被定位在多个定子槽中并限定多个相（M）。 机器定义每个相位每个极点（X）的非整数槽，其表示为A（B / C）形式的混合分数，其中A，B和C是整数。 规定电机的最佳配置，可最大限度地提高扭矩，同时最大限度地减小扭矩波动，噪音和制造复杂性。 在一个实施例中，每极的每相位值（X）的槽是2½。 在另一个实施例中，每极相位值（X）的槽是3½。

公开(公告)号：US12126242B2

公开(公告)日：2024-10-22

申请号：US17578722

申请日：2022-01-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward L. Kaiser ,  Paul Buchholz ,  Cheongun Han

IPC: H02K1/16 ,  H02K1/20 ,  H02K5/20 ,  H02K9/19 ,  H02K15/02

CPC classification number: H02K5/203 ,  H02K1/16 ,  H02K1/20 ,  H02K9/19 ,  H02K15/02

Abstract: A motor stator includes a plurality of stacked annular stator laminates defining a stator core having an inner circumference, an outer circumference, a plurality of stator teeth on the inner circumference, and a plurality of ears extending outward from the outer circumference with a respective bolt hole defined in each ear. A first set of the stator laminates includes a plurality of coolant openings therethrough, wherein the coolant openings of adjacent stator laminates communicate with one another in order to define cooling channels inside the stator core. A second set of the stator laminates each include one or more generally radially extending first openings therethrough, wherein the first openings of adjacent stator laminates communicate with one another to define one or more first radial channel segments inside the stator core for providing radial coolant flow between one or more bolt holes and one or more cooling channels.

公开(公告)号：US20240266812A1

公开(公告)日：2024-08-08

申请号：US18164078

申请日：2023-02-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： John D. Campbell ,  Elizabeth Pepper ,  Edward L. Kaiser

IPC: H02G1/12 ,  H01B3/08 ,  H01B7/00

CPC classification number: H02G1/128 ,  H01B3/081 ,  H01B7/0009 ,  H02G1/1285

Abstract: An exposed terminal for a wire conductor, and a process for preparing the exposed terminal includes executing, via a mechanical device, a mechanical ablation process to remove the insulative material from an outer surface of the plurality of square edges along a predefined length of the portion of the wire conductor. The process also includes executing, via a laser tool, a laser ablation process to remove the insulative material from the first pair of opposed faces along the predefined length of the portion of the wire conductor; and executing, via the laser tool, the laser ablation process to remove the insulative material from the second pair of opposed faces along the predefined length of the portion of the wire conductor.

公开(公告)号：US11356006B2

公开(公告)日：2022-06-07

申请号：US16774696

申请日：2020-01-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Suresh Gopalakrishnan ,  Chandra S. Namuduri ,  Alexandru Rajala ,  Thomas W. Nehl ,  Xiaohui Du ,  Edward L. Kaiser

IPC: H02K24/00 ,  H02K7/00 ,  B60L50/60 ,  B60L53/22 ,  H02K11/225

Abstract: An electric machine includes a machine rotor circumscribed by a machine stator, and having a rotor shaft, rotor stack, and end cap which rotate about an axis. The end cap includes lobes equal in number to a number of pole pairs of the machine rotor. A position sensor assembly has a predetermined alignment with the machine rotor and stator. The sensor assembly includes a sensor rotor formed by the lobes and a sensor stator having a printed circuit board with conductive sine and cosine traces. Machine rotor rotation causes the sensor assembly to output an unmodulated sine and cosine signals to a controller, which then calculates a calibrated reference angle. A magnetic axis of an electrical phase of the machine is aligned with and bisects a peak of the sine trace. A direct axis of the machine rotor aligns with an edge of a lobe.

公开(公告)号：US10680472B1

公开(公告)日：2020-06-09

申请号：US16214795

申请日：2018-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Pavan Kumar Patruni ,  Song He ,  Edward L. Kaiser ,  Mithun Sunny

IPC: H02K1/06 ,  H02K1/16 ,  H02K1/18

Abstract: A stator for an electromagnetic machine includes a first lamination stack defining a first cavity therein and having a central longitudinal axis. The first lamination stack includes a first plurality of mounting ears disposed opposite the first cavity and each spaced apart from one another about the central longitudinal axis. The stator further includes a second lamination stack abutting the first lamination stack and defining a second cavity therein aligned with the first cavity along the central longitudinal axis. The second lamination stack includes a second plurality of mounting ears disposed opposite the second cavity and each spaced apart from the first plurality of mounting ears and from one another about the central longitudinal axis. An electromagnetic machine including the stator and a device including the electromagnetic machine are also described.

公开(公告)号：US20200083764A1

公开(公告)日：2020-03-12

申请号：US16128632

申请日：2018-09-12

Applicant: GM Global Technology Operations LLC

Inventor： Xuan Q. Tran ,  Edward L. Kaiser ,  Song He

IPC: H02K1/18 ,  H02K1/20 ,  H02K5/24

Abstract: An electromagnetic machine includes a motor housing defining a cavity therein, and a stator disposed within the cavity. The stator has an external surface and a plurality of mounting ears each configured to receive a fastener and extending from the external surface towards the motor housing. The assembly includes a tunable insert ring disposed between the motor housing and the stator. The tunable insert ring and the stator define at least one cooling channel therebetween. The tunable insert ring encircles the external surface and includes a plurality of projections each extending towards and disposed in contact with the stator to thereby stiffen the electromagnetic machine and minimize vibration of the stator within the motor housing. A device including the electromagnetic machine is also described.

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：US20150035391A1

公开(公告)日：2015-02-05

申请号：US13959185

申请日：2013-08-05

Applicant: GM Global Technology Operations LLC

Inventor： Micah Joel Fuchs ,  Paul F. Turnbull ,  Edward L. Kaiser

IPC: H02K9/19

CPC classification number: H02K9/19

Abstract: An apparatus for providing a coolant to a stator and a rotor of an electric motor in a vehicle having a coolant pump is provided. The apparatus includes a base defining a plurality of first openings through at least one of which the coolant is flowable to the stator. The apparatus also includes at least one wall extending from the base to define a cavity configured to receive the coolant from the coolant pump. The apparatus further includes at least one first raised member within the cavity that extends from the base. The at least one first raised member defines at least one second opening substantially aligned with one of the first openings to form a first passageway through which the coolant is flowable to the rotor. The apparatus may be located above the electric motor such that the coolant is flowable by gravity to the stator and/or the rotor.

Abstract translation: 提供了一种用于向具有冷却剂泵的车辆中的定子和电动机的转子提供冷却剂的装置。 该装置包括限定多个第一开口的底座，通过其中的至少一个，冷却剂可流动到定子。 该装置还包括至少一个壁，其从基座延伸以限定构造成从冷却剂泵接收冷却剂的空腔。 所述设备还包括在所述空腔内的至少一个从所述底座延伸的第一凸起构件。 所述至少一个第一凸起构件限定至少一个第二开口，其基本上与第一开口中的一个对齐，以形成第一通道，冷却剂可以通过该第一通道流动到转子。 该设备可以位于电动机上方，使得冷却剂可通过重力流动到定子和/或转子。