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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
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。
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公开(公告)号：US20140338184A1
公开(公告)日：2014-11-20
申请号：US14251688
申请日：2014-04-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Edward L. Kaiser , Amanda Luedtke , Peter J. Savagian , Sinisa Jurkovic
IPC: H02K15/03
CPC classification number: B29C45/1701 , B29C45/14336 , B29C45/2616 , B29K2505/00 , B29K2995/0008 , B29L2031/749 , H02K15/03 , Y10T29/49012 , Y10T29/53143
Abstract: A method and assembly for forming a rotor include forming a rotor core having a plurality of voids and placing the formed rotor core into a die cavity. The method includes moving a plurality of support shoes to define an outer diameter of the die cavity, and injecting at least one of the plurality of voids with a magnetic slurry. At least one permanent magnet is formed from the magnetic slurry by applying pressure to the rotor core and the magnetic slurry within the die cavity and by applying a magnetic field to align the magnetic slurry. After forming the at least one permanent magnet within the rotor core, the plurality of support shoes are retracted and the rotor core removed with the at least one permanent magnet formed therein.
Abstract translation: 用于形成转子的方法和组件包括形成具有多个空隙的转子芯，并将形成的转子芯放置在模腔中。 该方法包括移动多个支撑鞋以限定模腔的外径，以及用磁性浆料注入多个空隙中的至少一个。 通过向模腔内的转子芯和磁性浆液施加压力并通过施加磁场以对准磁性浆料，从磁性浆料形成至少一个永磁体。 在转子芯体中形成至少一个永磁体之后，多个支撑靴被缩回，并且其中形成有至少一个永磁体而移除转子芯。
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23.发明申请METHOD, SYSTEM, AND STRUCTURE OF STATOR WITH COMMON INSULATING AND VARNISHING RESIN 审中-公开具有普通绝缘和变性树脂的定子的方法，系统和结构公开(公告)号：US20140209018A1
公开(公告)日：2014-07-31
申请号：US13750438
申请日：2013-01-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaoling Jin , Micah Joel Fuchs , John D. Campbell , Edward L. Kaiser
Abstract: A stator having a common varnish and weld insulation includes a stator lamination core and a motor winding wound around the stator lamination core. The motor winding includes a plurality of magnet wires configured such that they are substantially parallel to each other. Each magnet wire has two distal ends configured such that each distal end is welded to one distal end of an adjacent magnet wire, thereby forming a plurality of welded tips. The stator further includes a resin coating the welded tips and the stator. The resin serves as both a primary insulation for the welded tips, and as a varnish for the stator. This dual function of the resin may eliminate the need for separate insulation for the welded tips and varnish for the stator, and allow the resin to be applied to the welded tips and to the stator at substantially the same time.
Abstract translation: 具有共同的清漆和焊接绝缘的定子包括定子叠片芯和缠绕在定子叠片芯上的电动机绕组。 电动机绕组包括多个电线，其配置成使得它们彼此基本平行。 每个电磁线具有两个远端，其构造成使得每个远端焊接到相邻电磁线的一个远端，从而形成多个焊接尖端。 定子还包括涂覆焊接尖端和定子的树脂。 树脂既用作焊接头的主要绝缘体，也用作定子的清漆。 树脂的这种双重功能可以消除对用于定子的焊接顶端和清漆的单独绝缘的需要，并且允许树脂基本上同时施加到焊接端头和定子。
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公开(公告)号：US20250149939A1
公开(公告)日：2025-05-08
申请号：US18503217
申请日：2023-11-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Cheng Gong , Edward L. Kaiser , Cheongun Han
Abstract: A rotor assembly for an electric machine includes first laminates, second laminates; and a rotor shaft, wherein the first laminates and the second laminates are arranged in a stack on the rotor shaft. Each of the first laminates includes a first inner portion and a plurality of first outer portions, wherein the first inner portion and the first outer portions define a plurality of first cavities, wherein the plurality of first outer portions are secured to the first inner portions via a plurality of bridges. Each of the second laminates includes a second inner portion and a plurality of second outer portions. The second inner portion and the plurality of second outer portions define a plurality of second cavities, wherein the second outer portions are secured to the second inner portions via a plurality of second webs and are absent a bridge.
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公开(公告)号：US20250146523A1
公开(公告)日：2025-05-08
申请号：US18502824
申请日：2023-11-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： John Miller , Shawn H. Swales , Edward L. Kaiser , Travis M. Thompson
Abstract: A rotor shaft system for a vehicle includes a rotor shaft having a first shaft end opposite a second shaft end. The rotor shaft has a first segment and a second segment defined between the first shaft end and the second shaft end. The rotor shaft system includes a shaft gear coupled to the rotor shaft between the first shaft end and the first segment, and a shaft sleeve coupled to the first segment so as to surround a portion of the shaft gear. The rotor shaft system includes a lubrication system defined at least partially through the rotor shaft and the shaft sleeve. The lubrication system is to supply a fluid to at least a portion of the rotor shaft and the shaft sleeve.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20250104909A1
公开(公告)日：2025-03-27
申请号：US18472458
申请日：2023-09-22
Applicant: GM Global Technology Operations LLC
Inventor： Margarita P. Thompson , Wenying Yang , Edward L. Kaiser
Abstract: A method of incorporating additive domains in a rare earth magnet, a system for incorporating additive domains in a rare earth magnet, and a traction motor including a rare earth magnet. Inert gas and a plurality of coarse neodymium-iron-boron (NdFeB) particles are introduced into the chamber of a jet mill. The plurality of coarse NdFeB particles impact each other producing a plurality of refined NdFeB particles. The plurality of refined NdFeB particles also impact a target including a target material and transfer a portion of the target material onto a surface of the refined NdFeB particles. The plurality of refined NdFeB particles including the target material are separated from the plurality of coarse NdFeB particles and collected to form a rare earth magnet.
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公开(公告)号：US20230208216A1
公开(公告)日：2023-06-29
申请号：US17560404
申请日：2021-12-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mohammad F. Momen , Edward L. Kaiser
Abstract: Presented are electric machines with optimized stator tooth geometries and multi-gauge stator conductors, methods for making/using such electric machines, and motor vehicles equipped with such electric machines. An electric machine includes a housing, a rotor assembly rotatably attached to the housing, and a stator assembly coaxial with and separated by an airgap from the rotor assembly. The rotor assembly includes one or more magnets mounted to a rotor core. The stator assembly includes a stator core with multiple axially elongated, circumferentially spaced stator slots, multiple radially aligned stator teeth interleaved between and separating the slots, and multiple electromagnetic windings wound through the slots. Each stator tooth has an elongated tooth body with a tooth head at a radial end of a tooth root, which attaches to a cylindrical hub of the stator core. The tooth head has an axial cross-section with a trapezoidal crown integral with a rectangular tip.
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公开(公告)号：US20220337111A1
公开(公告)日：2022-10-20
申请号：US17230501
申请日：2021-04-14
Applicant: GM Global Technology Operations LLC
Inventor： Derek F. Lahr , Farzad Samie , Edward L. Kaiser
Abstract: A rotor core for an electric machine of an automobile includes a core stack including a plurality of lamination plates, each lamination plate including a plurality of apertures formed therein, the apertures of each of the lamination plates axially aligned to define a plurality of magnet slots extending axially through the core stack, a plurality of magnets stacked axially within each of the plurality of magnet slots along a length of the core stack, at least one of the plurality of magnet slots including a cavity extending axially along the length of the core stack, and a wedge inserted within the cavity adapted to apply a lateral force onto the plurality of magnets within the at least one magnet slot to secure the plurality of magnets within the at least one magnet slot.
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公开(公告)号：US10658889B2
公开(公告)日：2020-05-19
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
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.
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公开(公告)号：US10447108B2
公开(公告)日：2019-10-15
申请号：US15439025
申请日：2017-02-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaohui Du , Robert T. Dawsey , Edward L. Kaiser , Paul Buchholz
Abstract: A distributed connection ring assembly can be used in a stator assembly and can integrate a neutral connector and jumping winding connections in an overmolded assembly for insulation. The stator assembly including a stator core defining a plurality of slots spaced apart from each other, a plurality of bar conductors disposed in each of the slots, and a distributed connection ring assembly secured to the jumping winding connections. The distributed connection ring assembly includes an overmolded neutral connector. The distributed connection ring assembly also includes a plurality of overmolded couplers circumferentially spaced apart from one another. The overmolded couplers are coupled to the overmolded neutral connector. Each of the plurality of overmolded couplers includes a support body and a plurality of stator conductors partially disposed inside the support body. The stator conductors are electrically connected to the jumping winding connections.
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