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公开(公告)号：US20170372822A1
公开(公告)日：2017-12-28
申请号：US15698102
申请日：2017-09-07
Applicant: Ford Global Technologies, LLC
Inventor： Feng Liang , C Bing Rong , Michael W. Degner
CPC classification number: H01F1/0557 , B22F3/10 , B22F3/12 , B22F5/00 , B22F7/06 , B22F2302/25 , B22F2302/45 , B22F2998/10 , B22F2999/00 , C22C2202/02 , H01F1/0536 , H01F1/0577 , H01F41/0266 , H01F41/0293 , B22F3/02 , B22F2304/10 , B22F2207/01
Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.
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公开(公告)号：US20170201137A1
公开(公告)日：2017-07-13
申请号：US14994359
申请日：2016-01-13
Applicant: Ford Global Technologies, LLC
Inventor： Feng Liang , Franco Leonardi , Michael W. Degner
IPC: H02K1/27
CPC classification number: H02K1/276 , H02K1/04 , H02K1/2766
Abstract: An electric machine may include a plurality of sections each having permanent magnets arranged therein to form magnetic poles. The laminations may be stacked to form a rotor. A stator may surround the rotor. A non-magnetically permeable layer may be interposed between at least one adjacent pair of the sections that has skewed magnetic poles.
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公开(公告)号：US20150099104A1
公开(公告)日：2015-04-09
申请号：US14049443
申请日：2013-10-09
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Feng Liang , C Bing Rong , Michael W. Degner
CPC classification number: H01F1/0557 , B22F3/10 , B22F3/12 , B22F5/00 , B22F7/06 , B22F2302/25 , B22F2302/45 , B22F2998/10 , B22F2999/00 , C22C2202/02 , H01F1/0536 , H01F1/0577 , H01F41/0266 , H01F41/0293 , B22F3/02 , B22F2304/10 , B22F2207/01
Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.
Abstract translation: 在至少一个实施方案中，提供了在连续烧结的稀土（RE）磁体体内具有重稀土元素（HRE）元素的浓度分布的单个烧结磁体。 浓度分布可以包括本体内的HRE元素浓度的至少一个局部最大值，使得磁体的矫顽力分布在体内具有至少一个局部最大值。 可以通过将含有HRE的材料和磁性粉末的交替层引入模具中来形成磁体，将层压入生坯中，并烧结生坯以形成单一的单一磁体。
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公开(公告)号：US20130342043A1
公开(公告)日：2013-12-26
申请号：US14010208
申请日：2013-08-26
Applicant: Ford Global Technologies, LLC
Inventor： Feng Liang , Wei Wu , Michael W. Degner , Franco Leonardi
IPC: H02K1/27
CPC classification number: H02K1/276 , B60L11/123 , B60L11/14 , H02K1/27 , H02K1/2766 , H02K1/2773 , H02K29/03 , H02K2201/06 , Y02T10/6217 , Y02T10/641 , Y02T10/7077
Abstract: An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux. Asymmetry is achieved by placing adjacent permanent magnets or magnet sets on the rotor periphery with different rotor magnetic pole arc angles.
Abstract translation: 内部永磁机具有多个转子部分，每个部分具有多个转子叠片。 永磁体在层叠开口中不对称地放置，以衰减由磁通量的谐波分量引起的扭矩振荡。 通过将不同的转子磁极角度放置在转子周边上的相邻永磁体或磁体组件来实现不对称。
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公开(公告)号：US12106892B2
公开(公告)日：2024-10-01
申请号：US17329741
申请日：2021-05-25
Applicant: Ford Global Technologies, LLC
Inventor： Chuanbing Rong , Feng Liang , Leyi Zhu , Michael W. Degner
IPC: H01F41/02 , B05C5/02 , B22F9/08 , B22F10/00 , B22F10/62 , B22F12/53 , B29C64/106 , B29C64/295 , H01F1/12 , B22F3/115 , B22F10/10 , B22F10/31 , B22F12/20 , B29C64/209 , B33Y10/00 , B33Y30/00
CPC classification number: H01F41/0253 , B05C5/027 , B22F9/08 , B22F10/00 , B22F10/62 , B22F12/53 , B29C64/106 , B29C64/295 , H01F1/12 , H01F41/0206 , B22F3/115 , B22F2009/0876 , B22F2009/088 , B22F10/10 , B22F10/31 , B22F12/20 , B29C64/209 , B33Y10/00 , B33Y30/00 , C22C2202/02
Abstract: A three-dimensional magnetic printer includes at least one induction head assembly including an induction heater to heat magnetic material to form an alloy melt and at least one nozzle operable to eject the alloy melt, a coating apparatus, and a base aligned with the at least one nozzle. The induction head assembly deposits at least one alloy melt layer and the coating apparatus forms at least one insulating layer onto the base in accordance with a predetermined pattern to form a three-dimensional article.
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Patent Agency Ranking
公开(公告)号：US11437897B2
公开(公告)日：2022-09-06
申请号：US17132965
申请日：2020-12-23
Applicant: Ford Global Technologies, LLC
Inventor： Leyi Zhu , Edward Chan-Jiun Jih , Feng Liang , Michael W. Degner
Abstract: An electric machine includes a plurality of planar laminations stacked to form an electrical steel rotor having openings defining magnet pockets and adjacent inner side pockets. The adjacent inner side pockets define a center bridge therebetween and have blasted surface portions such that compressive stress layers are induced along edges of the center bridge to strengthen the center bridge.
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公开(公告)号：US11362552B2
公开(公告)日：2022-06-14
申请号：US16154825
申请日：2018-10-09
Applicant: Ford Global Technologies, LLC
Inventor： Leyi Zhu , Feng Liang , Michael W. Degner
Abstract: An electric machine rotor including a first stamped rotor lamination and a first stamped sheet of a material different than the first stamped rotor lamination is provided. The first stamped rotor lamination may define a pair of magnet pockets. The first stamped sheet may be coplanar with and scarf jointed to the first stamped rotor lamination to define a center bridge between the magnet pockets that has a magnetic permeability less than, and a mechanical strength greater than, the first stamped rotor lamination. The rotor may further include a second stamped sheet of a material different than the first stamped rotor lamination coplanar with and scarf jointed to the first stamped rotor lamination to define a top bridge adjacent to one of the magnet pockets at a perimeter of the rotor that has a magnetic permeability less than, and a mechanical strength greater than, the first stamped rotor lamination.
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公开(公告)号：US11056954B2
公开(公告)日：2021-07-06
申请号：US16202585
申请日：2018-11-28
Applicant: Ford Global Technologies, LLC
Inventor： Feng Liang , Michael W. Degner
Abstract: An electric machine includes a stator core defining slots and a first hairpin assembly installed in the stator core. The first hairpin assembly includes first and second same hairpins, each having first and second ends and separately coated to have first and second outer coating surfaces, respectively. The hairpin assembly is in first and second ones of the slots such that the first and second outer surfaces are touching. A weld material joins the first ends and another weld material joins the second ends.
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公开(公告)号：US11043319B2
公开(公告)日：2021-06-22
申请号：US16014055
申请日：2018-06-21
Applicant: Ford Global Technologies, LLC
Inventor： Wanfeng Li , Feng Liang
Abstract: A method of increasing volume ratio of magnetic particles in a MnBi alloy includes depositing a MnBi alloy powder containing magnetic particles and non-magnetic particles on a sloped surface having a magnetic field acted thereupon. The method further includes collecting falling non-magnetic particles while separated magnetic particles are magnetically retained on the sloped surface.
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公开(公告)号：US11024458B2
公开(公告)日：2021-06-01
申请号：US15730163
申请日：2017-10-11
Applicant: Ford Global Technologies, LLC
Inventor： C. Bing Rong , Feng Liang , Leyi Zhu , Michael W. Degner
IPC: H01F41/02 , H01F1/12 , B29C64/106 , B29C64/295 , B05C5/02 , B22F9/08 , B22F10/00 , B29C64/209 , B33Y30/00 , B33Y10/00 , B22F3/115 , B22F10/10
Abstract: A method for printing a three-dimensional (3D) article is provided by the present disclosure. The method includes induction heating, by an induction head assembly, a magnetic material to form an alloy melt. The induction head assembly includes a nozzle and an induction heater that heats the magnetic material. The method further includes including the alloy melt from the nozzle onto a base, and tracing a predetermined pattern on the base with the alloy melt to form a three-dimensional article.
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