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    Cooling arrangements for integrated electric motor-inverters
    2.
    发明授权
    Cooling arrangements for integrated electric motor-inverters 有权
    集成电动机 - 逆变器的冷却装置

    公开(公告)号：US07210304B2

    公开(公告)日：2007-05-01

    申请号：US11054483

    申请日：2005-02-09

    申请人： James M. Nagashima ,  Karl D. Conroy ,  Eric R. Ostrom ,  Gregory S. Smith ,  George John ,  David Tang ,  Terence G. Ward

    发明人： James M. Nagashima ,  Karl D. Conroy ,  Eric R. Ostrom ,  Gregory S. Smith ,  George John ,  David Tang ,  Terence G. Ward

    IPC分类号： F23D23/12

    CPC分类号： F28D15/00 ,  B60K6/26 ,  B60K2001/003 ,  F28D15/0266 ,  H02K9/19 ,  H02K11/33 ,  H05K7/20936

    摘要： In order to provide a modular arrangement, an inverter for an electric traction motor used to drive an automotive vehicle is positioned in proximity with the traction motor. The inverter is located within a compartment adjacent to one end of the electric traction motor and is cooled in a closed system by spraying a liquid coolant directly onto the inverter. The liquid coolant absorbs heat from the inverter and is cooled by a heat exchange arrangement comprising a reservoir with pipes carrying a second coolant from the radiator of the automotive vehicle. In a preferred embodiment, the coolant is collected from the inverter in an annular reservoir that is integral with the compartment containing the inverter. In accordance with one embodiment of the cooling arrangement, heat from the inverter vaporizes the liquid coolant by absorbing heat from the inverter during a phase change from a liquid to a vapor. The vaporized coolant is condensed by a circulating second coolant in pipes connected to the vehicle's radiator through a condenser that is preferably coaxial with the motor and the annular reservoir, which annular reservoir in the second embodiment collects overspray liquid coolant. In order to avoid degrading the inverter, the coolant is a dielectric fluid.

    摘要翻译： 为了提供模块化布置，用于驱动机动车辆的电动牵引电动机的逆变器位于牵引电动机附近。 逆变器位于与电力牵引电动机的一端相邻的隔室内，并通过将液体冷却剂直接喷射到逆变器上而在封闭系统中冷却。 液体冷却剂从逆变器吸收热量，并且通过热交换装置来冷却，所述热交换装置包括具有从机动车辆的散热器承载第二冷却剂的管道的储存器。 在优选实施例中，冷却剂从与逆变器的隔室成一整体的环形容器中从逆变器收集。 根据冷却装置的一个实施例，来自逆变器的热量在从液体到蒸汽的相变期间通过吸收来自逆变器的热量来蒸发液体冷却剂。 蒸发的冷却剂通过连接到车辆散热器的管道中的循环第二冷却剂冷凝，该冷凝器优选地与电动机和环形储存器同轴，该第二实施例中的环形储存器收集过量喷射的液体冷却剂。 为了避免降低变频器，冷却剂是介质流体。

    Arrangements for and methods of phase change cooling of power electronics
    3.
    发明授权
    Arrangements for and methods of phase change cooling of power electronics 有权
    电力电子设备相变冷却的安排和方法

    公开(公告)号：US07481072B2

    公开(公告)日：2009-01-27

    申请号：US11374677

    申请日：2006-03-14

    申请人： Eric R. Ostrom ,  Karl D. Conroy ,  George John ,  Gregory S. Smith

    发明人： Eric R. Ostrom ,  Karl D. Conroy ,  George John ,  Gregory S. Smith

    IPC分类号： B60H1/32

    CPC分类号： F28D15/00 ,  B60K6/26 ,  B60K2001/003 ,  F28D15/0266 ,  H02K9/19 ,  H02K11/33 ,  H05K7/20936

    摘要： Power electronics for electric traction motors used to drive automotive vehicles are cooled in a closed system by spraying a dielectric liquid coolant directly onto inverter circuitry. The liquid coolant changes phase and vaporizes as it absorbs heat from power transistors in inverter circuitry comprising the power electronics. The resultant vapor is condensed back to a liquid in a heat exchange arrangement having pipes carrying a second coolant from a radiator used to cool an engine or fuel cell stack in the automotive vehicle. Overspray coolant, which remains liquid, can also be cooled by the heat exchange arrangement. By utilizing the latent heat of evaporation of the dielectric coolant and increasing the rate recycling of the coolant as power output increases, temperature increases in the power electronics are controlled.

    摘要翻译： 用于驱动汽车的电动牵引电动机的电力电子装置通过将介电液体冷却剂直接喷射到逆变器电路上而在封闭的系统中被冷却。 液体冷却剂改变相位并在从包括电力电子器件的逆变器电路中的功率晶体管吸收热量时蒸发。 所得到的蒸汽在具有从用于冷却机动车辆中的发动机或燃料电池堆的散热器的带有第二冷却剂的管道的热交换装置中冷凝回到液体中。 仍然是液体的溢流冷却剂也可以通过热交换装置来冷却。 通过利用电介质冷却剂的蒸发潜热并且随着功率输出的增加而增加冷却剂的再循环率，控制电力电子设备中的温度升高。

    Charging energy sources with a rectifier using double-ended inverter system
    6.
    发明授权
    Charging energy sources with a rectifier using double-ended inverter system 有权
    使用双端逆变器系统的整流器充电能源

    公开(公告)号：US08058830B2

    公开(公告)日：2011-11-15

    申请号：US12136636

    申请日：2008-06-10

    申请人： George John ,  Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Gregory S. Smith ,  James M. Nagashima ,  Milun Perisic

    发明人： George John ,  Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Gregory S. Smith ,  James M. Nagashima ,  Milun Perisic

    IPC分类号： H02P1/00

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： Systems and methods are provided for charging energy sources with a rectifier using a double-ended inverter system. An apparatus is provided for an electric drive system for a vehicle. The electric drive system comprises an electric motor configured to provide traction power to the vehicle. A first inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A first energy source is coupled to the first inverter, wherein the first inverter is configured to provide power flow between the first energy source and the electric motor. A second inverter is coupled to the electric motor and is configured to provide alternating current to the electric motor. A rectifier is coupled to the second inverter and configured to produce a direct current output. The second inverter is configured to provide power from the rectifier to the electric motor.

    摘要翻译： 提供了系统和方法，用于使用双端逆变器系统对整流器充电能量源。 一种用于车辆的电驱动系统的装置。 电驱动系统包括被配置为向车辆提供牵引力的电动马达。 第一逆变器耦合到电动机并且被配置为向电动机提供交流电。 第一能量源耦合到第一逆变器，其中第一逆变器被配置为在第一能量源和电动机之间提供功率流。 第二逆变器耦合到电动机并且被配置为向电动机提供交流电。 整流器耦合到第二反相器并且被配置为产生直流输出。 第二逆变器被配置成从整流器向电动机提供电力。

    Compact terminal assembly for power converters
    8.
    发明授权
    Compact terminal assembly for power converters 有权
    紧凑型电源转换器端子组件

    公开(公告)号：US08053920B2

    公开(公告)日：2011-11-08

    申请号：US12178897

    申请日：2008-07-24

    申请人： Terence G. Ward ,  George John ,  Edward P. Yankoski ,  Gregory S. Smith ,  James M. Nagashima

    发明人： Terence G. Ward ,  George John ,  Edward P. Yankoski ,  Gregory S. Smith ,  James M. Nagashima

    IPC分类号： B60L1/00

    CPC分类号： H02M7/003 ,  H01L2224/49111

    摘要： A terminal assembly for a power converter is provided. The terminal assembly includes first and second conductive components and a current sensor. The first conductive component has first and second releasable attachment formations. The second conductive component has first and second portions with respective first and second widths. The first width is less than the second width. The first portion is releasably attached to the first conductive component with the second releasable attachment formation. The current sensor has an opening therethrough and is positioned between the first conductive component and the second portion of the second conductive component such that the first portion of the first conductive component extends through the opening. The current sensor is responsive to current flowing through the first portion of the second conductive component.

    摘要翻译： 提供了一种用于功率转换器的端子组件。 端子组件包括第一和第二导电部件和电流传感器。 第一导电组件具有第一和第二可释放的附接结构。 第二导电部件具有相应的第一和第二宽度的第一和第二部分。 第一宽度小于第二宽度。 第一部分通过第二可释放的连接结构可释放地附接到第一导电部件。 电流传感器具有穿过其的开口并且位于第一导电部件和第二导电部件的第二部分之间，使得第一导电部件的第一部分延伸穿过开口。 电流传感器响应于流过第二导电部件的第一部分的电流。

    Double ended inverter system with an impedance source inverter subsystem
    9.
    发明授权
    Double ended inverter system with an impedance source inverter subsystem 有权
    具有阻抗源逆变器子系统的双端逆变器系统

    公开(公告)号：US07956569B2

    公开(公告)日：2011-06-07

    申请号：US12132486

    申请日：2008-06-03

    申请人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    发明人： Brian A. Welchko ,  James M. Nagashima ,  Gregory S. Smith ,  Sibaprasad Chakrabarti ,  Milun Perisic ,  George John

    IPC分类号： H02P27/04

    CPC分类号： B60L11/1868 ,  Y02T10/7005 ,  Y02T10/7066

    摘要： A double ended inverter system suitable for use with an AC electric traction motor of a vehicle is provided. The double ended inverter system cooperates with a first DC energy source and a second DC energy source, which may have different nominal voltages. The double ended inverter system includes an impedance source inverter subsystem configured to drive the AC electric traction motor using the first energy source, and an inverter subsystem configured to drive the AC electric traction motor using the second energy source. The double ended inverter system also utilizes a controller coupled to the impedance source inverter subsystem and to the inverter subsystem. The controller is configured to control the impedance source inverter subsystem and the inverter subsystem in accordance with a boost operating mode, a traditional inverter operating mode, and a recharge operating mode of the double ended inverter system.

    摘要翻译： 提供适用于车辆的交流电动牵引电动机的双端逆变器系统。 双端逆变器系统与可能具有不同标称电压的第一DC能量源和第二DC能量源协作。 双端逆变器系统包括：阻抗源逆变器子系统，被配置为使用第一能量源驱动交流电力牵引电动机;以及逆变器子系统，被配置为使用第二能量源驱动交流电力牵引电动机。 双端逆变器系统还使用耦合到阻抗源逆变器子系统和逆变器子系统的控制器。 控制器配置为根据升压运行模式，传统逆变器工作模式和双端逆变器系统的充电操作模式控制阻抗源逆变器子系统和逆变器子系统。