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公开(公告)号：US11095197B2
公开(公告)日：2021-08-17
申请号：US16176013
申请日：2018-10-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： John S. Agapiou , John D. Campbell , Frederick W. Rhoads , Hongliang Wang , James G. Schroth , Thomas A. Perry
Abstract: A modular stator includes a first stator module and a second stator module. The first stator module includes a plurality of first coil end regions and a plurality of first junctions. The second stator module includes a plurality of second coil end regions and a plurality of second junctions. The first stator module and the second stator module are joined at the plurality of first junctions and the plurality of second junctions.
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公开(公告)号：US10992212B2
公开(公告)日：2021-04-27
申请号：US16176006
申请日：2018-10-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： John S. Agapiou , Hongliang Wang , Thomas A. Perry , John D. Campbell
Abstract: A method for manufacturing a stator includes the steps of: (1) providing a stator core module having a first stator fixture disposed on a first side of the stator core module, the first stator fixture is configured to support a first set of stator core junction portions in a fixed position; (2) providing a first crown module having a set of first crown junction portions and a first crown fixture to support the first set of first crown junction portions; (3) aligning the first stator fixture with the first crown fixture so that the first set of stator core junction portions are aligned with the first crown junction portions; and (4) joining the first set of stator core junction portions with the first crown junction portions.
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公开(公告)号：US10471508B2
公开(公告)日：2019-11-12
申请号：US15471868
申请日：2017-03-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Thomas A. Perry , Blair E. Carlson , Jason J. Nolte , Hyungmin Chae , John Patrick Spicer
IPC: B22F3/105 , B33Y10/00 , B33Y40/00 , B33Y30/00 , B33Y50/02 , B23K26/342 , B23K26/082 , B23K26/067 , B23K26/06 , B23K26/70 , B29C64/153 , B29C64/386 , B29C64/35 , B29K105/00
Abstract: Additive manufacturing systems, area scanning laser systems, and methods for performing an additive manufacturing process are provided. An exemplary additive manufacturing system includes a laser generation device for producing a laser beam. Further, the additive manufacturing system includes an optic element for forming a first portion of the laser beam with a first polarization and a second portion of the laser beam with a second polarization different from the first polarization to encode an image in the laser beam. Also, the additive manufacturing system includes a selective beam separator configured to direct the first portion of the laser beam onto a material to be sintered or melted. The additive manufacturing system includes a recycling system for receiving the second portion of the laser beam.
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公开(公告)号：US20190006920A1
公开(公告)日：2019-01-03
申请号：US15636745
申请日：2017-06-29
Applicant: GM Global Technology Operations LLC
Inventor： John S. Agapiou , Thomas A. Perry , James G. Schroth , Hongliang Wang , Michael P. Balogh
Abstract: A rotor for an induction motor includes a first shorting end ring, a second shorting end ring, and a plurality of conductor bars. Each conductor bar has a first end and a second end and is coated with an electrically conductive material. The first end of each conductor bar is in electrical and mechanical contact with the first shorting end ring, and the second end of each conductor bar is in electrical and mechanical contact with the second shorting end ring. The conductive material is disposed between each conductor bar and the respective shorting end rings.
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公开(公告)号：US10036083B2
公开(公告)日：2018-07-31
申请号：US14789134
申请日：2015-07-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James G. Schroth , Thomas A. Perry , Chen Zhou
CPC classification number: C22C9/00 , B23K9/042 , B23K20/165 , B23K35/302
Abstract: A method of pre-placing a reaction material onto a surface of a metal workpiece substrate involves the use of oscillating wire arc welding. The method involves depositing and adhering the reaction material from a consumable electrode rod. In doing so, the reaction material can be deposited at any time before the metal workpiece substrate is ready for joining by reaction metallurgical joining, and the size and shape of the reaction material deposit can be more easily controlled.
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Patent Agency Ranking
公开(公告)号：US09476944B2
公开(公告)日：2016-10-25
申请号：US13916483
申请日：2013-06-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Thomas A. Perry , John D. Campbell
CPC classification number: G01R31/34 , G01R31/346 , H02K15/00
Abstract: A continuity tester that has particular application for inspecting the insulation on the stator windings in an electric machine. The continuity tester includes a power supply, a brush having conductive bristles, and an analog-to-digital (A/D) converter. One terminal of the power supply is electrically coupled to the brush and another terminal of the power supply is electrically coupled to the A/D converter and the stator being tested. The conductive brush is selectively positioned against the exposed windings of the stator, and if an electrical circuit is formed as a result of loss of insulation, the potential at the input of the A/D converter drops, which can be detected. In one embodiment, the conductive brush is a manual brush that is moved across the stator windings, and in alternate embodiments the conductive brush is specially configured to be positioned against the conductive windings in an automated process.
Abstract translation: 一种连续性测试仪，具有特殊应用，用于检查电机中定子绕组上的绝缘。 连续性测试器包括电源，具有导电刷毛的刷子和模拟（A / D）转换器。 电源的一个端子电耦合到电刷，并且电源的另一个端子电耦合到A / D转换器和被测试的定子。 导电刷被选择性地定位成抵靠定子的暴露的绕组，并且如果由于绝缘损失而形成电路，则可以检测到A / D转换器的输入处的电位下降。 在一个实施例中，导电刷是穿过定子绕组移动的手动刷，并且在替代实施例中，导电刷被特别地构造成在自动化过程中抵靠导电绕组定位。
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公开(公告)号：US20200099280A1
公开(公告)日：2020-03-26
申请号：US16141281
申请日：2018-09-25
Applicant: GM Global Technology Operations LLC
Inventor： John S. Agapiou , Thomas A. Perry
Abstract: A method for manufacturing an induction rotor includes placing a lamination stack into a fixture in which the first end of the lamination stack is rotated in an opposite rotational direction from the second end of the lamination stack to skew the conduction bars to an angle α. Vertical members are fixed to an outer perimeter of each of the plurality of laminates of the lamination stack. Hoop members are fixed to each of the plurality of vertical members and an outer edge of each of the plurality of conduction bars. A conduction ring is fixed on each of the ends of the lamination stack. An outer perimeter of the lamination stack is machined to remove the plurality of vertical members and the plurality of hoop members from the lamination stack.
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公开(公告)号：US20190076953A1
公开(公告)日：2019-03-14
申请号：US15702255
申请日：2017-09-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James G. Schroth , Thomas A. Perry , Hongliang Wang
CPC classification number: B23K11/115 , B23K9/042 , B23K9/23 , B23K11/14 , B23K11/18 , B23K11/34 , B23K26/361 , B23K26/40 , B23K35/222 , B23K35/302 , B23K2101/18 , B23K2103/12
Abstract: A method of joining together adjacent overlapping copper workpieces by way of resistance spot welding involves providing a workpiece stack-up that includes a first copper workpiece and a second copper workpiece that lies adjacent to the first copper workpiece. The faying surface of the first copper workpiece includes a projection that ascends beyond a surrounding base surface of the faying surface and makes contact, either directly or indirectly, with an opposed faying surface of the second copper workpiece. Once provided, a compressive force is applied against the first and second copper workpieces and an electric current is passed momentarily through the first and second copper workpieces. The electric current initially flows through the projection to generate and concentrate heat within the projection prior to the projection collapsing. This concentrated heat surge allows a metallurgical joint to be established between the first and second copper workpieces.
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公开(公告)号：US10168249B2
公开(公告)日：2019-01-01
申请号：US15488763
申请日：2017-04-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Sean R. Wagner , Thomas A. Perry , Scott W. Piper , Cheol W. Kim
Abstract: A transmission range selection sensor includes a housing defining a bore extending along a central axis. A piston is slideably disposed within the bore. A magnet carrier is attached to and moveable with the piston. A magnet is supported by and moveable with the magnet carrier. A first magnetic sensor and a second magnetic sensor are supported by the housing and are spaced from each other along the central axis. A position of the magnet carrier along the central axis is determinable from a sensed magnetic flux from the first and second magnetic sensors. The sensor includes at least one magnetic flux concentrator attached to one of the magnet carrier or the housing. The flux concentrator is operable to concentrate the magnetic flux toward at least one of the first magnetic sensor or the second magnetic sensor depending upon a position of the magnet along the central axis.
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10.发明授权公开(公告)号：US09839971B2
公开(公告)日：2017-12-12
申请号：US14488799
申请日：2014-09-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James G. Schroth , David R. Sigler , Thomas A. Perry
CPC classification number: B23K11/20 , B23K11/115 , B23K11/34 , B23K2103/20
Abstract: A method of resistance spot welding a steel workpiece to an aluminum or aluminum alloy workpiece involves providing a workpiece stack-up that includes a steel workpiece and an aluminum workpiece and preheating the welding electrode that is meant to contact the aluminum or aluminum alloy workpiece. The method further involves pressing the preheated welding electrode and another welding electrode against opposite sides of the workpiece stack-up, with the preheated welding electrode abutting the aluminum or aluminum alloy workpiece, and passing an electrical current between the two welding electrodes at a weld site to initiate and grow a molten weld pool within the aluminum or aluminum alloy workpiece.
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