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    Power electronics system with fully-integrated cooling
    1.
    发明授权
    Power electronics system with fully-integrated cooling 失效
    电力电子系统具有完全集成的冷却功能

    公开(公告)号：US06313991B1

    公开(公告)日：2001-11-06

    申请号：US09624511

    申请日：2000-07-24

    申请人： James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

    发明人： James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

    IPC分类号： H05H720

    CPC分类号： B60R16/0239 ,  H05K7/20927

    摘要： A thermally cooled power electronics system. A cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body, along with a coolant inlet and outlet manifolds having a coolant cavity inlet outlet that are coupled to respective ends of the coolant cavity. An environmental sealing gasket surrounds the coolant cavity. A plurality of laminated copper bus bars are disposed through the bus bar passthrough opening. A laminated horizontal bus bar assembly extends along the length of the housing above the coolant cavity and has horizontal bus bars that are coupled to the laminated copper bus bars. A battery input connector is coupled by way of a vertical bus bar assembly to the horizontal bus bar assembly. A plurality of power switching devices are coupled to the laminated horizontal bus bar assembly. A heat sink is coupled to the plurality of power switching devices and thermally coupled to the coolant cavity. A plurality of capacitors are secured in the capacitor bus assembly potting cavity that are coupled by way of the laminated copper bus bars to the horizontal bus bar assembly.

    摘要翻译： 热冷却电力电子系统。 冷却壳体具有形成在一个表面中的冷却剂腔的主体和形成在相对表面中的电容器总线组件灌封腔。 汇流条通道开口形成穿过主体，以及具有联接到冷却剂腔的相应端部的冷却剂腔入口出口的冷却剂入口和出口歧管。 环境密封垫圈围绕冷却剂腔。 多个叠层铜母线通过母线通孔开口设置。 层压水平母线组件沿着壳体在冷却剂腔的上方的长度延伸，并且具有耦合到层压铜母线的水平母线。 电池输入连接器通过垂直母线组件连接到水平汇流条组件。 多个电源开关装置耦合到层叠的水平汇流条组件。 散热器耦合到多个功率开关装置并且热耦合到冷却剂腔。 多个电容器被固定在电容器总线组件灌封腔中，其通过层叠的铜汇流条耦合到水平汇流条组件。

    Integrated power electronics cooling housing
    2.
    发明授权
    Integrated power electronics cooling housing 有权
    集成电力电子冷却外壳

    公开(公告)号：US06404628B1

    公开(公告)日：2002-06-11

    申请号：US09621379

    申请日：2000-07-21

    申请人： James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

    发明人： James M. Nagashima ,  Terence G. Ward ,  Scott D. Downer

    IPC分类号： H05K720

    CPC分类号： H05K7/20927

    摘要： A power electronics cooling housing for use in a power electronics system. The power electronics cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body. The bus bar passthrough opening provides an opening from the coolant cavity and the capacitor bus assembly potting cavity. A coolant inlet manifold having a coolant cavity inlet and a coolant outlet manifold having a coolant cavity outlet are formed in the body that are coupled to respective ends of the coolant cavity. An environmental sealing gasket surrounds the coolant cavity.

    摘要翻译： 用于电力电子系统的电力电子冷却壳体。 电力电子冷却壳体具有形成在一个表面中的冷却剂腔的主体和形成在相对表面中的电容器总线组件灌封腔。 汇流条通道开口形成穿过身体。 汇流条通道开口提供从冷却剂腔和电容器总线组件灌封腔的开口。 具有冷却剂腔入口和具有冷却剂腔出口的冷却剂出口歧管的冷却剂入口歧管形成在主体中，其联接到冷却剂腔的相应端部。 环境密封垫圈围绕冷却剂腔。

    Method and system for improved thermal management of a voltage source inverter operating at low output frequency utilizing a zero vector modulation technique
    3.
    发明授权
    Method and system for improved thermal management of a voltage source inverter operating at low output frequency utilizing a zero vector modulation technique 有权
    利用零向量调制技术改进以低输出频率工作的电压源逆变器的热管理方法和系统

    公开(公告)号：US07061134B2

    公开(公告)日：2006-06-13

    申请号：US10632257

    申请日：2003-08-01

    申请人： Silva Hiti ,  Constantin C. Stancu ,  Khwaja Rahman ,  Scott D. Downer ,  James M. Nagashima ,  Eric R. Ostrom

    发明人： Silva Hiti ,  Constantin C. Stancu ,  Khwaja Rahman ,  Scott D. Downer ,  James M. Nagashima ,  Eric R. Ostrom

    IPC分类号： H02P9/04 ,  H02P5/34

    CPC分类号： H02P27/12 ,  H02M7/5387 ,  H02M2001/0054 ,  H02M2007/53876 ,  Y02B70/1491

    摘要： The present invention includes a method for thermal management in a voltage source inverter. The method includes sensing a low output frequency condition, determining a zero vector modulation responsive to the sensed low output frequency condition, and applying the determined zero vector modulation to reduce thermal stress in the voltage source inverter. The step of determining the zero vector modulation responsive to the sensed low output frequency condition includes mapping an output voltage requirement to a space vector structure and determining state switching space vectors based on the mapped output voltage requirement. The step of determining the state switching space vector includes determining active state switching space vectors associated with the state switching space vectors, determining duty cycles for the active state switching space vectors based on the active state switching space vectors, and determining a duty cycle for at least one zero state switching space vector based on the determined duty cycles of the active state switching space vectors and a switching period.

    摘要翻译： 本发明包括电压源逆变器中的热管理方法。 该方法包括感测低输出频率条件，响应于感测的低输出频率条件确定零矢量调制，以及应用所确定的零矢量调制以减小电压源逆变器中的热应力。 响应于感测的低输出频率条件来确定零矢量调制的步骤包括将输出电压需求映射到空间矢量结构，并且基于映射的输出电压要求来确定状态切换空间矢量。 确定状态切换空间矢量的步骤包括确定与状态切换空间矢量相关联的活动状态切换空间矢量，基于活动状态切换空间矢量确定活动状态切换空间矢量的占空比，以及确定在 基于确定的活动状态切换空间矢量的占空比和切换周期的至少一个零状态切换空间矢量。

    Compact terminal assembly for power converters
    5.
    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。

    Cooling arrangements for integrated electric motor-inverters
    7.
    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。