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    • 34. 发明授权
    • High power permanent magnet alternator with improved controlled output
    • 大功率永磁发电机具有改进的控制输出
    • US07521905B2
    • 2009-04-21
    • US11531403
    • 2006-09-13
    • Brian WelchkoGregory S. SmithJames M. Nagashima
    • Brian WelchkoGregory S. SmithJames M. Nagashima
    • H02H7/06H02P9/00H02P11/00
    • H02P9/006H02J7/1461H02P2101/45
    • Apparatus, systems, and methods are provided for reducing a potentially damaging high voltage fault condition in an alternator system. The apparatus comprises a motor, a rectifier coupled to the motor, an output node coupled to the rectifier, and a switch coupled between the rectifier and the output node, wherein the switch is a normally “on” switch. The system includes the apparatus implemented into a vehicle comprising an engine to drive the apparatus and a battery coupled to the apparatus, wherein the apparatus provides current to the battery. The method includes the steps of providing current from a rectifier of the alternator to a battery coupled to the rectifier and ceasing to provide current to the battery if a damaging event occurs, wherein the ceasing step comprises the step of switching OFF a normally “on” switch coupled between the rectifier and the battery if a damaging event occurs.
    • 提供装置,系统和方法用于减少交流发电机系统中潜在的有害的高压故障状况。 该装置包括电动机,耦合到电动机的整流器,耦合到整流器的输出节点和耦合在整流器和输出节点之间的开关,其中开关是正常的“开”开关。 该系统包括实施到车辆中的装置,其包括驱动装置的发动机和耦合到该装置的电池,其中该装置向电池提供电流。 该方法包括以下步骤:将交流发电机的整流器的电流提供给耦合到整流器的电池,并且如果发生损坏事件则停止向电池提供电流,其中停止步骤包括将正常“接通” 如果发生破坏性事件,则在整流器和电池之间连接开关。
    • 38. 发明授权
    • Cooling arrangements for integrated electric motor-inverters
    • 集成电动机 - 逆变器的冷却装置
    • US07210304B2
    • 2007-05-01
    • US11054483
    • 2005-02-09
    • James M. NagashimaKarl D. ConroyEric R. OstromGregory S. SmithGeorge JohnDavid TangTerence G. Ward
    • James M. NagashimaKarl D. ConroyEric R. OstromGregory S. SmithGeorge JohnDavid TangTerence G. Ward
    • F23D23/12
    • F28D15/00B60K6/26B60K2001/003F28D15/0266H02K9/19H02K11/33H05K7/20936
    • 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.
    • 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。