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1. 发明公开

US20240291332A1 SYSTEM AND METHOD OF MAKING A CAST INDUCTION ROTOR ASSEMBLY HAVING CONDUCTIVE BARS 审中-公开
公开(公告)号：US20240291332A1
公开(公告)日：2024-08-29
申请号：US18174879
申请日：2023-02-27
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao , Daniel J. Wilson , Steven L. Burkholder
IPC分类号： H02K1/26 , H02K15/02
CPC分类号： H02K1/26 , H02K15/024
摘要： An induction rotor assembly having conductive bars is provided. The assembly comprises a lamination stack comprising a body having a first end and second ends to define a longitudinal axis. The body has an outer circumferential portion extending from the first end to the second end. The outer portion has a plurality of walls defining open slots formed from the first end through the second end. The assembly further comprises a first ring disposed on the first end and a second ring disposed on the second end. The assembly further comprises a plurality of conductive bars extending between the first and second rings. Each conductive bar is disposed in one of the slots such that the respective conductive bar is in contact with the lamination stack and connects the first and second rings. Each bar comprises an inner portion and a conductive outer skin disposed about the inner portion.

2. 发明授权

US11545880B2 Segmented stator laminations 有权
公开(公告)号：US11545880B2
公开(公告)日：2023-01-03
申请号：US17077318
申请日：2020-10-22
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： John S. Agapiou , James G. Schroth
IPC分类号： H02K15/02 , H02K1/14
摘要： Stator cores and methods for fabricating stator cores are provided. An exemplary stator core includes a stack of laminations. Each lamination in the stack of laminations comprises a yoke and a plurality of tooth segments fixed to the yoke.

3. 发明授权

US10879752B2 Low porosity and consistent metallurgical bonding for hybrid motor rotors 有权
公开(公告)号：US10879752B2
公开(公告)日：2020-12-29
申请号：US16297010
申请日：2019-03-08
申请人： GM Global Technology Operations LLC
发明人： John S. Agapiou , Hongliang Wang , James G. Schroth
IPC分类号： H02K17/16 , H02K1/26 , H02K3/12 , H02K1/02 , H02K15/02 , H02K15/06 , H02K3/48
CPC分类号： H02K1/265 , H02K1/02 , H02K3/12 , H02K3/48 , H02K15/024 , H02K15/063
摘要： A rotor stack assembly includes multiple plates each including multiple elongated slots each oriented radially outward from a longitudinal central axis of each plate toward an outer perimeter wall of the plate. Multiple openings are each positioned proximate to one of the slots and directed outwardly through the outer perimeter wall. Multiple runners individually extend through the plate and individually open into one of opposed ends of each of the slots. Multiple bars of a conductive material are each extended through aligned ones of the slots of each of the multiple plates.

4. 发明授权

US10491085B2 Induction rotor and method of assembling an induction rotor 有权
公开(公告)号：US10491085B2
公开(公告)日：2019-11-26
申请号：US15254834
申请日：2016-09-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： John S. Agapiou , Blair E. Carlson
IPC分类号： H02K15/00 , H02K1/26 , H02K3/12 , H02K17/20
CPC分类号： H02K15/0012 , H02K1/26 , H02K3/12 , H02K17/205
摘要： A rotor for an electromagnetic machine and a method of assembling the rotor are provided. In one embodiment, the rotor includes a lamination stack disposed about a rotational axis a plurality of conductor bars disposed within corresponding slots formed in the lamination stack and extending beyond the longitudinal ends of the lamination stack. End rings are positioned at either end of the lamination stack and define a plurality of openings configured to receive the ends of the conductor bars. Each end ring includes separate inner and outer concentric rings. The inner and outer rings define radially outer and inner surfaces configured to about one another and each of the concentric rings defines a portion of each conductor bar opening in the end ring.

5. 发明授权

US09973067B2 Rotor casting 有权
公开(公告)号：US09973067B2
公开(公告)日：2018-05-15
申请号：US14677466
申请日：2015-04-02
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Michael D. Hanna , John S. Agapiou
IPC分类号： H02K17/16 , B22D19/00 , H02K15/00 , B22D17/00
CPC分类号： H02K17/165 , B22D17/00 , B22D19/0054 , H02K15/0012
摘要： A rotor casting includes a lamination stack and a cast structure including proximal and distal cast end rings respectively adjacent proximal and distal end faces of the lamination stack. Cast axial ribs are distributed radially on a peripheral surface of the lamination stack and extend between the proximal and distal cast end rings. Cast feed members extend axially from the proximal cast end ring and are respectively positioned radially between an adjacent pair of axial ribs. In one example, cast bar segments integral to the proximal and distal cast end rings are formed in axial slots of the lamination stack. In one example, a bar insert in each axial slot has insert ends that extend respectively from the proximal and distal end faces of the lamination stack and are fully encapsulated respectively in the proximal and distal cast end rings. A method of forming the rotor casting is provided.

6. 发明申请

US20180062486A1 INDUCTION ROTOR AND METHOD OF ASSEMBLING AN INDUCTION ROTOR 审中-公开
公开(公告)号：US20180062486A1
公开(公告)日：2018-03-01
申请号：US15254834
申请日：2016-09-01
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： John S. Agapiou , Blair E. Carlson
IPC分类号： H02K15/00 , H02K1/26 , H02K3/12
CPC分类号： H02K15/0012 , H02K1/26 , H02K3/12 , H02K17/205
摘要： A rotor for an electromagnetic machine and a method of assembling the rotor are provided. In one embodiment, the rotor includes a lamination stack disposed about a rotational axis a plurality of conductor bars disposed within corresponding slots formed in the lamination stack and extending beyond the longitudinal ends of the lamination stack. End rings are positioned at either end of the lamination stack and define a plurality of openings configured to receive the ends of the conductor bars. Each end ring includes separate inner and outer concentric rings. The inner and outer rings define radially outer and inner surfaces configured to abut one another and each of the concentric rings defines a portion of each conductor bar opening in the end ring.

7. 发明申请

US20160327931A1 SYSTEM AND METHOD FOR IMPLEMENTING COMPENSATION OF GLOBAL AND LOCAL OFFSETS IN COMPUTER CONTROLLED SYSTEMS 审中-公开
标题翻译：在计算机控制系统中实施全球和本地偏差补偿的系统和方法
公开(公告)号：US20160327931A1
公开(公告)日：2016-11-10
申请号：US15093032
申请日：2016-04-07
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Jie Gu , John S. Agapiou
IPC分类号： G05B19/402
CPC分类号： G05B19/402 , G05B19/4083 , G05B2219/36054
摘要： A system for offsetting a CNC machining process includes transferring compensation variables through registers in fixed G-code programming of the CNC machine and offsetting the CNC machine without altering fixed G-code programming. Global compensation variables are applied to all feature programs of the CNC machining process, and local compensation variables are applied to only individual features or groups of features. The machine shifts position in response to the compensation variables.
摘要翻译：用于抵消CNC加工过程的系统包括通过数控机床固定G代码编程中的寄存器传送补偿变量，并抵消CNC机床，而不改变固定的G代码编程。全局补偿变量适用于CNC加工过程的所有特征程序，局部补偿变量仅适用于单个特征或特征组。机器响应补偿变量移位位置。

8. 发明授权

US09482710B2 Inspection system for evaluating electrical parts for unwanted partial discharge 有权
标题翻译：用于评估不必要的局部放电的电气部件的检查系统
公开(公告)号：US09482710B2
公开(公告)日：2016-11-01
申请号：US14024185
申请日：2013-09-11
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： John S. Agapiou , Thomas A. Perry , Jon Matthew Radlick
IPC分类号： G01R31/00 , G01R31/34 , G01R31/12
CPC分类号： G01R31/003 , G01R31/1227 , G01R31/343
摘要： An electrical part testing system for evaluating quality of an insulated electrical part, including a computer-controlled switching apparatus for providing an original voltage to the electrical part automatically according to a pre-established testing scheme calling for provision of voltage to each phase of the part, in turn, while grounding the other phases of the part. A high-frequency filter for receiving receive the original voltage, receiving a load voltage emanating from the electrical part in response to the part receiving the original voltage, and filtering the original voltage from the load voltage to isolate any partial-discharge voltage added to the original voltage by the electrical part while the part is being electrified by the original voltage, yielding a filtered signal. A computing device determines, based on a comparison of a peak amplitude of the partial-discharge inception voltage to a voltage threshold, the quality of the electrical part being tested.
摘要翻译：一种用于评估绝缘电气部件的质量的电气部件测试系统，包括用于根据预先建立的测试方案自动向电气部件提供原始电压的计算机控制的开关装置，其要求向部件的每个相位提供电压反过来，同时接地零件的其他阶段。用于接收的高频滤波器接收原始电压，响应于接收原始电压的部分接收从电气部分发出的负载电压，并且从负载电压对原来的电压进行滤波，以将添加到原始电压通过电气部分，同时部分由原始电压通电，产生滤波信号。计算装置基于部分放电起始电压的峰值振幅与电压阈值的比较来确定正在测试的电气部件的质量。

9. 发明申请

US20160218603A1 ARC WELDING/BRAZING PROCESS FOR LOW-HEAT INPUT COPPER JOINING 审中-公开
标题翻译：用于低热输入铜加工的弧焊/制动工艺
公开(公告)号：US20160218603A1
公开(公告)日：2016-07-28
申请号：US14996549
申请日：2016-01-15
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： James G. Schroth , Thomas A. Perry , John S. Agapiou , Ronald M. Lesperance
IPC分类号： H02K15/00 , B23K35/22 , B23K9/23 , B23K1/19 , B23K1/00 , B23K9/00
CPC分类号： B23K35/222 , B23K1/0016 , B23K1/19 , B23K9/0008 , B23K9/167 , B23K9/23 , B23K2101/32 , B23K2101/36 , B23K2103/12 , H02K3/50 , H02K15/0081
摘要： An arc welding/brazing process is disclosed that is useful to join together a first copper piece and a second copper piece without damaging more heat-sensitive materials that may be located nearby is disclosed. The arc welding/brazing process includes using a non-consumable electrode wire, which electrically communicates with a weld control in a straight polarity orientation, to strike an arc across a gap established between a leading tip end of the electrode wire and the first copper piece. The current that flows through the arc when the arc is established heats the first copper piece such that the first copper piece becomes joined to a second copper piece. The joint between the first copper piece and the second copper piece may be an autogenous weld joint or a braze joint.
摘要翻译：公开了一种电弧焊接/钎焊方法，其可用于将第一铜片和第二铜片接合在一起而不损害可能位于附近的更多热敏材料。电弧焊接/钎焊工艺包括使用与直线极性取向的焊接控制电连通的非消耗性电极线，以跨越在电极线的前端和第一铜片之间建立的间隙。当电弧建立时流过电弧的电流加热第一铜片，使得第一铜片接合到第二铜片。第一铜片和第二铜片之间的接合部可以是自身焊接接头或钎焊接头。

10. 发明申请

US20230115294A1 DETECTION OF PARTIAL DISCHARGE 有权
公开(公告)号：US20230115294A1
公开(公告)日：2023-04-13
申请号：US17448990
申请日：2021-09-27
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Ronald M. Lesperance , John S. Agapiou
IPC分类号： G01R31/34 , G01R31/12
摘要： Methods and systems for detecting partial discharge in a stator for an electric motor are provided. An exemplary method includes applying a high voltage AC sinewave input signal to the stator and energizing at least one winding therein. The method includes sensing a first resulting load signal occurring in the stator with a first device and filtering the first resulting load signal to form a first high frequency signal indicating any partial discharge (PD) voltage occurring in the stator. The method also includes sensing a second resulting load signal occurring in the stator with a second device and filtering the second resulting load signal to form a second high frequency signal indicating any partial discharge voltage occurring in the stator. Further, the method includes processing the first and second high frequency signals to form a processed signal indicating whether partial discharge occurred.

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