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公开(公告)号：US10229776B2
公开(公告)日：2019-03-12
申请号：US15078439
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Francis Johnson , Min Zou , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie
IPC: H02K19/02 , H01F1/147 , H01F7/02 , H01F41/02 , B05D7/14 , C23C8/04 , C23C8/26 , H02K1/02 , H02K1/24 , C21D8/12 , C22C38/04 , C22C38/30 , C22C38/38 , C21D1/26
Abstract: A magnetic component including first and second regions, and a method of varying the magnetization values in different regions of the magnetic component are disclosed. The first and the second regions are characterized by a nitrogen content that is different from each other. At least one of the first region and the second region is partially-magnetic and has a nitrogen content in a range from about 0.1 weight % to about 0.4 weight % of that region. A concentration of carbon, if present, of both the first and second regions is less than about 0.05 weight % of the respective regions.
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12.发明申请公开(公告)号：US20170054335A1
公开(公告)日：2017-02-23
申请号：US15340131
申请日：2016-11-01
Applicant: General Electric Company
Inventor： Tsarafidy Raminosoa , James Pellegrino Alexander , Aymam Mohamed Fawzi EL-Refaie , David A. Torrey
CPC classification number: H02K1/24 , H02K1/146 , H02K1/22 , H02K1/246 , H02K15/02 , H02K15/022 , H02K2205/12 , Y10T29/49012
Abstract: An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap. Electrically non-conductive and non-magnetic inserts are positioned in the gaps formed between the salient rotor poles, with each of the inserts including a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly.
Abstract translation: 公开了一种表现出减小的摩擦和风阻损失的电机。 电机包括定子和配置成相对于定子旋转的转子组件，其中转子组件包括转子芯，转子芯包括多个突出的转子极，所述转子磁极相对于内部毂毂彼此间隔开，使得极间间隙为 形成在每个相邻的一对突出的转子极之间，在每个极间隙中开口由转子芯限定。 电非导电和非磁性插入件定位在形成在凸极转子极之间的间隙中，每个插入件包括形成其轴向内部边缘的配合特征，其配置成与由转子限定的相应开口相配合 芯部，以便抵抗转子组件旋转期间经受的离心力将插入件固定到转子芯体上。
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公开(公告)号：US20160203899A1
公开(公告)日：2016-07-14
申请号：US15078516
申请日：2016-03-23
Applicant: General Electric Company
Inventor： Min Zou , Francis Johnson , Patel Bhageerath Reddy , James Pellegrino Alexander , Ayman Mohamed Fawzi EL-Refaie , Wanming Zhang
CPC classification number: H01F7/021 , B05D7/14 , C21D1/26 , C21D8/12 , C21D8/1294 , C21D2221/00 , C22C38/04 , C22C38/30 , C22C38/38 , C23C8/04 , C23C8/26 , H01F1/147 , H01F41/0253 , H02K1/02 , H02K1/246 , H02K19/02
Abstract: A magnetic component including at least one region is disclosed. The at least one region includes nitrogen and a concentration of the nitrogen in the at least one region is graded across a dimension of the at least one region. Further, a saturation magnetization in the at least one region is graded across the dimension of the at least one region. Further, a method of varying the magnetization values in at least one region of the magnetic component is disclosed.
Abstract translation: 公开了包括至少一个区域的磁性部件。 所述至少一个区域包括氮气，并且所述至少一个区域中的氮浓度跨越所述至少一个区域的尺寸分级。 此外，至少一个区域中的饱和磁化强度横跨该至少一个区域的尺寸被分级。 此外，公开了改变磁性部件的至少一个区域中的磁化值的方法。
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14.发明申请SYSTEM AND METHOD FOR PREVENTING STATOR PERMANENT MAGNET DEMAGNETIZATION DURING VACUUM PRESSURE IMPREGNATION 有权用于在真空压力曝光期间防止定子永久磁铁去除的系统和方法公开(公告)号：US20160028276A1
公开(公告)日：2016-01-28
申请号：US14337469
申请日：2014-07-22
Applicant: General Electric Company
Abstract: A permanent magnet electrical machine includes a stator having conductive windings wound thereon and one or more permanent magnets embedded in the stator. A magnetic keeper element is positioned on the stator so as to form a magnetic flux path with the permanent magnets, with the magnetic keeper element closing the magnetic flux path of the permanent magnets by providing a low reluctance flux path to magnetic flux generated by the permanent magnets. A vacuum pressure impregnation (VPI) process is performed on the stator to increase a thermal conductivity of the windings, with the VPI process including a curing step that is performed at a selected temperature. The magnetic keeper element sets an operating point of the permanent magnets to an internal flux density level above a demagnetization threshold associated with the selected temperature at which the curing step is performed.
Abstract translation: 永磁电机包括具有缠绕在其上的导电绕组的定子和嵌入定子中的一个或多个永磁体。 磁力定位元件定位在定子上，以便与永磁体形成磁通路径，磁力保持元件通过为由永久磁铁产生的磁通量提供低磁阻通量来封闭永久磁铁的磁通量 磁铁。 在定子上进行真空压力浸渍（VPI）处理以提高绕组的热导率，其中VPI工艺包括在选定温度下进行的固化步骤。 磁力保持元件将永磁体的工作点设定为高于与执行固化步骤的选定温度相关联的退磁阈值的内部磁通密度水平。
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15.发明申请SYSTEM AND METHOD FOR RETAINING ROTOR STRUCTURE IN SYNCHRONOUS RELUCTANCE MACHINE 审中-公开同步电机转子结构保持系统及方法公开(公告)号：US20150171673A1
公开(公告)日：2015-06-18
申请号：US14106129
申请日：2013-12-13
Applicant: GENERAL ELECTRIC COMPANY
CPC classification number: H02K1/246 , Y10T29/49012
Abstract: A rotor assembly that includes at least one integral non-magnetic rotor retaining structure comprising a plurality of individual rotor retaining discs, the discs having predefined slots; and a plurality of magnetic segments retained within the slots of the discs of the respective integral non-magnetic rotor retaining structure.
Abstract translation: 一种转子组件，其包括至少一个整体的非磁性转子保持结构，其包括多个单独的转子保持盘，所述盘具有预定义的槽; 以及保持在相应的一体式非磁性转子保持结构的盘的槽内的多个磁性段。
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Patent Agency Ranking
16.发明申请DUAL MAGNETIC PHASE STATOR LAMINATIONS FOR STATOR PERMANENT MAGNET ELECTRIC MACHINES 审中-公开用于定子永磁电机的双磁相定子分层公开(公告)号：US20140239763A1
公开(公告)日：2014-08-28
申请号：US13780773
申请日：2013-02-28
Applicant: GENERAL ELECTRIC COMPANY
CPC classification number: H02K1/2773 , Y10T29/49009
Abstract: A dual magnetic phase stator lamination for use in stator permanent magnet electric machines is disclosed. The permanent magnet electrical machine includes a rotor mounted for rotation about a central axis and a stator positioned about the rotor and comprising a plurality of stator laminations, wherein each of the stator laminations is composed of a dual magnetic phase material and includes a first stator lamination portion comprising a magnetic material and a second stator lamination portion comprising a non-magnetic material, the second stator lamination portion comprising an area positioned adjacent to each of a plurality of permanent magnets embedded in the stator lamination. The second stator lamination portion comprises a heat treated portion of the stator lamination, with the heat treating of the second stator lamination portion rendering the dual magnetic phase material of the stator lamination non-magnetic at the locations of the second stator lamination portion.
Abstract translation: 公开了一种用于定子永磁电机的双磁相定子叠片。 永磁电机包括安装成围绕中心轴旋转的转子和围绕转子定位并包括多个定子叠片的定子，其中每个定子叠片由双磁相材料组成，并且包括第一定子叠片 包括磁性材料的部分和包括非磁性材料的第二定子叠片部分，所述第二定子叠片部分包括邻近嵌入在所述定子叠片中的多个永久磁体中的每一个定位的区域。 第二定子层压部分包括定子叠片的热处理部分，第二定子叠片部分的热处理使定子叠片的双磁相材料在第二定子叠片部分的位置处非磁性。
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17.发明授权公开(公告)号：US09520751B2
公开(公告)日：2016-12-13
申请号：US13949406
申请日：2013-07-24
Applicant: General Electric Company
Inventor： Tsarafidy Raminosoa , James Pellegrino Alexander , Ayman Mohamed Fawzi El-Refaie , David A. Torrey
CPC classification number: H02K1/24 , H02K1/146 , H02K1/22 , H02K1/246 , H02K15/02 , H02K15/022 , H02K2205/12 , Y10T29/49012
Abstract: An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap. Electrically non-conductive and non-magnetic inserts are positioned in the gaps formed between the salient rotor poles, with each of the inserts including a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly.
Abstract translation: 公开了一种表现出减小的摩擦和风阻损失的电机。 电机包括定子和配置成相对于定子旋转的转子组件，其中转子组件包括转子芯，转子芯包括多个突出的转子极，所述转子磁极相对于内部毂毂彼此间隔开，使得极间间隙为 形成在每个相邻的一对突出的转子极之间，在每个极间隙中开口由转子芯限定。 电非导电和非磁性插入件定位在形成在凸极转子极之间的间隙中，每个插入件包括形成其轴向内部边缘的配合特征，其配置成与由转子限定的相应开口相配合 芯部，以便抵抗转子组件旋转期间经受的离心力将插入件固定到转子芯体上。
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公开(公告)号：US20170282138A1
公开(公告)日：2017-10-05
申请号：US15087712
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , James Pellegrino Alexander , David Allan Torrey
Abstract: The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.
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公开(公告)号：US20170141633A1
公开(公告)日：2017-05-18
申请号：US14940498
申请日：2015-11-13
Applicant: General Electric Company
Inventor： Ashraf Said Atalla , Manoj Ramprasad Shah , Satish Prabhakaran , James Pellegrino Alexander
CPC classification number: H02K3/28 , H02K11/0094 , H02K11/04 , H02K11/20 , H02K11/25 , H02K19/10 , H02K19/34 , H02K2213/09 , H02P25/18 , H02P25/22 , H02P27/04
Abstract: An electrical machine is provided. The electrical machine includes a stator, a rotor, and a plurality of switches. The stator includes main windings and auxiliary windings. The rotor is couplable to a prime mover configured to turn the rotor relative to the stator to generate at least six phases of alternating current (AC) power at the main windings. The plurality of switches is respectively coupled between the auxiliary windings and groups of the main windings. The plurality of switches is configured to convert the at least six phases to three phases when the plurality of switches is closed.
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公开(公告)号：US09601951B2
公开(公告)日：2017-03-21
申请号：US14070795
申请日：2013-11-04
Applicant: General Electric Company
Inventor： Ken Ivcar Salas Nobrega , Jeremy Daniel Van Dam , Manoj Ramprasad Shah , William Dwight Gerstler , Tsarafidy Raminosoa , Edward John Flett , Patel Bhageerath Reddy , James Pellegrino Alexander
Abstract: A permanent magnet machine, a rotor assembly for the machine, and a pump assembly. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets configured as one of internal or surface mounted. The rotor assembly also including a plurality of retaining clips configured to retain the plurality of permanent magnets relative to the rotor core. The pump assembly including an electric submersible pump and a permanent magnet motor for driving the pump.
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