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公开(公告)号:US07312653B2
公开(公告)日:2007-12-25
申请号:US11077475
申请日:2005-03-10
申请人: Keming Chen , David Tang
发明人: Keming Chen , David Tang
IPC分类号: G01F1/10
CPC分类号: H02H11/003 , H02M1/32
摘要: A reverse polarity protected system comprises a voltage source that includes positive and negative terminals. A polarity-sensitive device has a first terminal that communicates with the positive terminal of the voltage source, and that includes a second terminal. A low-resistance switch communicates with the first and second terminals of the voltage source, and communicates with the second terminal of the polarity-sensitive device. The low-resistance switch assumes a conducting state between the second terminal of the polarity-sensitive device and the negative terminal of the voltage source when a first voltage at the positive terminal of the voltage source minus a second voltage at the negative terminal of the voltage source is greater than a threshold voltage. Otherwise, the low-resistance switch assumes a non-conducting state.
摘要翻译: 反向极性保护系统包括一个包括正极和负极端子的电压源。 极性敏感装置具有与电压源的正极端子连通并且包括第二端子的第一端子。 低电阻开关与电压源的第一和第二端子通信,并与极性敏感器件的第二端子连通。 当电压源的正极端子处的第一电压减去电压负极端子处的第二电压时,低电阻开关在极性敏感器件的第二端子和电压源的负极端子之间呈现导通状态 源极大于阈值电压。 否则,低电阻开关呈现不导通状态。
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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。
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公开(公告)号:US20060202746A1
公开(公告)日:2006-09-14
申请号:US11077475
申请日:2005-03-10
申请人: Keming Chen , David Tang
发明人: Keming Chen , David Tang
IPC分类号: G05F1/10
CPC分类号: H02H11/003 , H02M1/32
摘要: A reverse polarity protected system comprises a voltage source that includes positive and negative terminals. A polarity-sensitive device has a first terminal that communicates with the positive terminal of the voltage source, and that includes a second terminal. A low-resistance switch communicates with the first and second terminals of the voltage source, and communicates with the second terminal of the polarity-sensitive device. The low-resistance switch assumes a conducting state between the second terminal of the polarity-sensitive device and the negative terminal of the voltage source when a first voltage at the positive terminal of the voltage source minus a second voltage at the negative terminal of the voltage source is greater than a threshold voltage. Otherwise, the low-resistance switch assumes a non-conducting state.
摘要翻译: 反向极性保护系统包括一个包括正极和负极端子的电压源。 极性敏感装置具有与电压源的正极端子连通并且包括第二端子的第一端子。 低电阻开关与电压源的第一和第二端子通信,并与极性敏感器件的第二端子连通。 当电压源的正端子处的第一电压减去电压负极端子处的第二电压时,低电阻开关在极性敏感器件的第二端子和电压源的负极端子之间呈现导通状态 源极大于阈值电压。 否则,低电阻开关呈现不导通状态。
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公开(公告)号:US20060174642A1
公开(公告)日:2006-08-10
申请号:US11054483
申请日:2005-02-09
申请人: James Nagashima , Karl Conroy , Eric Ostrom , Gregory Smith , George John , David Tang , Terence Ward
发明人: James Nagashima , Karl Conroy , Eric Ostrom , Gregory Smith , George John , David Tang , Terence Ward
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喷液体冷却剂。 为了避免降低变频器,冷却剂是介质流体。
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公开(公告)号:US06382918B1
公开(公告)日:2002-05-07
申请号:US09680097
申请日:2000-10-06
申请人: David Tang
发明人: David Tang
IPC分类号: F04D2934
CPC分类号: F04D29/34 , F04D25/088
摘要: A blade bracket mounting system for a ceiling fan includes a support base having a plurality of locking portions each having three locking slots each having a first end defining a wide portion and a second end defining a narrow portion, a plurality of blade brackets each provided with a connection secured on the locking portion of the support base, and provided with three slide blocks each slidably mounted in the locking slot of the locking portion, three locking screws each screwed in the slide block and each slidably rested on the wall of the locking slot, and a fastening ring mounted on the support base and provided with a plurality of limit lugs. Two adjacent limit lugs each have a corner secured in the cavity of the connection of the blade bracket so that the blade bracket is rigidly secured on the support base.
摘要翻译: 一种用于吊扇的叶片支架安装系统包括:支撑基座,其具有多个锁定部分,每个锁定部分具有三个锁定槽,每个锁定槽具有限定宽部分的第一端部和限定窄部分的第二端部, 固定在支撑基座的锁定部分上并且设置有三个滑动块的连接件,每个滑动块可滑动地安装在锁定部分的锁定槽中,三个锁定螺钉,每个锁定螺钉各自拧入滑动块中,并且每个可滑动地搁置在锁定槽的壁上 以及安装在所述支撑基座上并且设置有多个限位凸耳的紧固环。 两个相邻的限位凸耳各自具有固定在刀片支架的连接件的空腔中的角部,使得刀片支架刚性地固定在支撑基座上。
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