公开(公告)号：US20140076852A1

公开(公告)日：2014-03-20

申请号：US13973690

申请日：2013-08-22

Applicant: Hitachi, Ltd.

Inventor： Shigeru KIKUCHI ,  Ayumu MORITA ,  Kenji TSUCHIYA ,  Masato YABU ,  Akio NAKAZAWA

IPC: H01H1/025 ,  H01H1/029

CPC classification number: H01H1/025 ,  H01H1/0206 ,  H01H1/029 ,  H01H33/6643

Abstract: Provided an electrical contact is cheap, excellent workability and lasts the effect of chopping current reduction. An electrical contact comprising a Cu matrix, and compounds Cu and low melting point metal which are dispersed in the Cu matrix, wherein a vapor pressure of the low melting point metal is more than 105 Pa at 1000° C., the compound has stoichiometric ratio which is the value of the low melting metal/Cu is greater than 0.5, and a longitudinal direction of the compound is oriented at an angle of 90°±10° to the contact surfaces. The method of the electrical contact is stretching mixture the Cu matrix with the compounds at 70-85% while heating, using as a contact surfaces of the electrical contact.

Abstract translation: 提供电接触便宜，可加工性优异，并且持续切断电流降低的效果。 包含Cu基体和分散在Cu基体中的化合物Cu和低熔点金属的电接触，其中低熔点金属的蒸气压在1000℃下大于105Pa，该化合物具有化学计量比 低熔点金属/ Cu的值大于0.5，化合物的长度方向与接触面成90°±10°的角度。 电接触的方法是使用作为电接触的接触表面的加热将铜基质与化合物在70-85％下进行拉伸混合。

公开(公告)号：US20130335887A1

公开(公告)日：2013-12-19

申请号：US13915978

申请日：2013-06-12

Applicant: Hitachi, Ltd.

Inventor： Ayumu MORITA ,  Naoya OKADA ,  Akitaka SHIINA ,  Kenji TSUCHIYA ,  Mitsuaki YAMAMOTO ,  Hiroaki MORII ,  Takao YANAGISAWA

IPC: H02B13/00 ,  H01C17/00 ,  H01C1/026

CPC classification number: H02B13/00 ,  H01C1/024 ,  H01C1/026 ,  H01C7/12 ,  H01C17/00 ,  Y10T29/49082

Abstract: A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.

Abstract translation: 用于抑制磁化冲击电流的电阻包括由绝缘材料制成的容器和容纳在容器中的至少一个电阻元件，电阻元件连接到设置在容器上的两个衬套，容器的外表面涂有导电 油漆和油漆连接到地面，从而能够位于电缆和开关之间，并且能够将其外表面固定到接地电压水平，使得人的接触安全性不受损害。

公开(公告)号：US20160141126A1

公开(公告)日：2016-05-19

申请号：US14900240

申请日：2014-09-05

Applicant: Hitachi, Ltd.

Inventor： Shigeru KIKUCHI ,  Kunihiko TOMIYASU ,  Kenji TSUCHIYA ,  Takashi SATO ,  Ayumu MORITA

IPC: H01H33/664 ,  C22C27/04 ,  C22C30/02 ,  B22F3/26 ,  B22F1/00 ,  B22F5/12 ,  B22F3/02 ,  H01H33/666 ,  C22C9/00

CPC classification number: H01H33/6643 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/26 ,  B22F5/12 ,  B22F2201/10 ,  B22F2201/20 ,  B22F2301/10 ,  B22F2301/20 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/04 ,  C22C1/0425 ,  C22C1/045 ,  C22C9/00 ,  C22C27/04 ,  C22C30/02 ,  H01H33/664 ,  H01H33/666 ,  H01H2201/03 ,  H01H2205/002 ,  B22F2201/01

Abstract: In an electrical contact in which aggregation phases including Cu are dispersed in a matrix phase including Mo, Cr, and Cu, a maximum grain size of the aggregation phases falls in a range of 4 to 20 μm and, when the total Cu content in the electrical contact is denoted by Wt, the Cu content in the matrix phase is expressed by C×Wt, where C ranges from 0.54 to 0.81. A process for producing an electrical contact including Mo, Cr, and Cu includes a step of compacting mixed Mo and Cr powders, thus forming a powder-compression compact and a step of making the powder-compression compact infiltrated with molten Cu.

Abstract translation: 在其中包含Cu的聚集相分散在包括Mo，Cr和Cu的基质相中的电接触中，聚集相的最大晶粒尺寸落在4至20μm的范围内，并且当Cu 电接触由Wt表示，基质相中的Cu含量由C×Wt表示，C为0.54〜0.81。 用于制造包括Mo，Cr和Cu的电接触的方法包括压实混合的Mo和Cr粉末的步骤，从而形成粉末压缩压块，以及使熔融的Cu浸渍的粉末压缩压块的步骤。

公开(公告)号：US20160049268A1

公开(公告)日：2016-02-18

申请号：US14783000

申请日：2014-03-07

Applicant: HITACHI, LTD.

Inventor： Toshiaki ROKUNOHE ,  Tatsuro KATO ,  Jun NUKAGA ,  Tomohiro MORIYAMA ,  Kenji TSUCHIYA

IPC: H01H33/18

CPC classification number: H01H33/182 ,  H01H1/385 ,  H01H9/443 ,  H01H33/64

Abstract: Magnetic force of a permanent magnet can be converted into arc driving force efficiently, and the permanent magnet can be insulated from arc heat so as to suppress magnetic deterioration, whereby breaking performance can be secured over a long period of time. In order to solve the above-described problems, the switchgear of the present invention includes: a fixed side contactor that is provided to a fixed side conductor; a moving contact that can be driven reciprocally with respect to the fixed side contactor, the moving contact being supported by a movable side conductor via a movable side contactor, the moving contact performing opening and closing operation by contacting to and separating from the fixed side contactor; and a permanent magnet generating a magnetic field on an arc to extinguish the arc through the opening operation, the arc being generated between the fixed side contactor and the moving contact, and the permanent magnet is provided on a tip portion of the fixed side conductor to be positioned closer to the movable side contactor side than the fixed side contactor, and the permanent magnet is covered with an insulating member.

Abstract translation: 永磁体的磁力可以有效地转换为电弧驱动力，并且永磁体可以与电弧热绝缘，以便抑制磁性劣化，从而可以长时间确保断裂性能。 为了解决上述问题，本发明的开关装置包括：固定侧接触器，其设置在固定侧导体上; 能够相对于固定侧接触器往复运动的移动接触件，可动接触件通过可动侧接触器由可动侧导体支撑，所述移动接触件通过接触和分离固定侧接触器进行开闭操作 ; 以及在电弧上产生磁场以通过打开操作熄灭电弧的永磁体，在固定侧接触器和可移动触点之间产生电弧，并且永磁体设置在固定侧导体的尖端部分上 比固定侧接触器更靠近可动侧接触器侧，并且永磁体被绝缘构件覆盖。

公开(公告)号：US20150318132A1

公开(公告)日：2015-11-05

申请号：US14408714

申请日：2013-06-03

Applicant: Hitachi, Ltd.

Inventor： Takashi SATO ,  Ayumu MORITA ,  Kenji TSUCHIYA ,  Masato YABU ,  Akio NAKAZAWA ,  Hisao KAWAKAMI ,  Shigeru YOKOSUKA ,  Seiji SEYA

IPC: H01H50/02 ,  H01H50/60 ,  H01H50/64 ,  H01H50/04

CPC classification number: H01H50/021 ,  H01H33/38 ,  H01H33/6662 ,  H01H50/04 ,  H01H50/60 ,  H01H50/64 ,  H01H2033/6667 ,  H01H2205/002

Abstract: The invention has an object to provide an operating device or vacuum switch which permits reduction in the overall height of the operating device and improves installation convenience. In order to solve the above problem, an operating device according to the present invention is characterized by including an electromagnet 14 located in a case 10 and fixed to the case 10 through a fixing part, a capacitor 16 located at an end in the case 10, a control board 18 located opposite to the capacitor 16 across the electromagnet 14, an auxiliary contact 34 located above the capacitor 16, a movable part to move by a magnetic force generated from the electromagnet 14, and a power transmission section to operate in conjunction with movement of the movable part. The capacitor 16 and the auxiliary contact 34 are located at heights not exceeding the height of the fixing part for fixing the electromagnet 14.

Abstract translation: 本发明的目的是提供一种操作装置或真空开关，其允许降低操作装置的整体高度并提高安装方便性。 为了解决上述问题，根据本发明的操作装置的特征在于包括位于壳体10中的电磁体14，并通过固定部分固定到壳体10上，位于壳体10端部的电容器16 与跨过电磁铁14的电容器16相对设置的控制板18，位于电容器16上方的辅助触头34，由电磁铁14产生的磁力移动的可移动部分和动力传递部分结合起作用 随着可动部件的移动。 电容器16和辅助触点34位于不超过用于固定电磁体14的固定部分的高度的高度处。

公开(公告)号：US20130240485A1

公开(公告)日：2013-09-19

申请号：US13766104

申请日：2013-02-13

Applicant: HITACHI, LTD.

Inventor： Masato YABU ,  Kenji TSUCHIYA ,  Ayumu MORITA

IPC: H01H33/662

CPC classification number: H01H33/66207 ,  H02B13/01 ,  H02B13/0354 ,  H02B13/075

Abstract: The switchgear includes a vacuum circuit breaker that is disposed in a circuit breaker chamber compartmented by a grounded metal plate, a busbar that is disposed in a busbar chamber and connected to the vacuum circuit breaker through a conductor, a cable that is disposed in a cable chamber and connected at one end to a load side, and a grounding device that is operated by a grounding device actuator disposed in a grounding device actuator chamber, connected to the vacuum circuit breaker through a conductor, and connected to the other end of the cable. The busbar is formed by a solid-insulated busbar. The conductor connecting the vacuum circuit breaker to the busbar and the conductor connecting the vacuum circuit breaker to the grounding device are both formed by solid-insulated conductor. The circuit breaker chamber and the grounding device have a sealed structure.

Abstract translation: 开关柜包括一个真空断路器，该真空断路器设置在由接地的金属板隔开的断路器室中，母线设置在母线室中并通过导体连接到真空断路器，电缆设置在电缆中 并且一端连接到负载侧，以及接地装置，其由设置在接地装置致动器室中的接地装置致动器操作，通过导体连接到真空断路器，并且连接到电缆的另一端 。 母线由固体绝缘母线形成。 将真空断路器与母线连接的导体和将真空断路器连接到接地装置的导体均由固体绝缘导体形成。 断路器室和接地装置具有密封结构。

公开(公告)号：US20160001798A1

公开(公告)日：2016-01-07

申请号：US14768593

申请日：2014-02-12

Applicant: HITACHI, LTD.

Inventor： Kenji TSUCHIYA ,  Ayumu MORITA ,  Makoto WATANABE ,  Yoshinori SHIMADA ,  Hideo KITABAYASHI ,  Wataru MURATA

IPC: B61G5/10 ,  H01H71/24 ,  B60L5/18 ,  H01H31/02

CPC classification number: B61G5/10 ,  B60L5/18 ,  H01H31/026 ,  H01H71/24

Abstract: The present invention provides a railroad vehicle which makes it possible: not only to separate a high-voltage cable involving a point of problem and sound high-voltage cables from each other without an operator climbing onto the roof of a vehicle; but also to automatically conduct the separating work without necessity for any special work. The railroad vehicle of the present invention is formed by dispersedly mounting a plurality of vehicles with main power devices that are supplied with power from a power supply line through a pantograph and constitute power supply units. The railroad vehicle includes: a plurality of vehicle units in which respective vehicles are coupled; a cable placed astride the vehicles to connect the power supply unit of each vehicle unit; and a disconnector that is installed at some midpoint in the cable and electrically separates the vehicle units from one another.

Abstract translation: 本发明提供了一种铁路车辆，其不仅能够使涉及有问题的高压电缆彼此分离，而且无需操作者爬上车辆顶部; 而且自动进行分离工作，无需任何特殊工作。 本发明的铁路车辆通过分散安装多个车辆，其中主要动力装置通过电动助力从供电线路供电并构成供电装置。 铁路车辆包括：多个车辆单元，其中各个车辆联接在一起; 跨过车辆连接每个车辆单元的电源单元的电缆; 以及安装在电缆中的某个中点处并将车辆单元彼此电隔离的隔离开关。

公开(公告)号：US20140361858A1

公开(公告)日：2014-12-11

申请号：US14295473

申请日：2014-06-04

Applicant: HITACHI, LTD.

Inventor： Takamitsu HAE ,  Ayumu MORITA ,  Masato YABU ,  Akio NAKAZAWA ,  Kenji TSUCHIYA

IPC: H01H3/00

CPC classification number: H01H33/6662 ,  H01H50/16 ,  H01H50/54 ,  H01H50/64 ,  H01H2033/6667

Abstract: An actuator for a contactor comprises an electromagnet having a closing coil, a holding coil, fixed cores wound with the closing coil and the holding coil respectively, a movable core provided on one side of the fixed cores, and a yoke. A main contact movable member operates to perform closing or interrupting by attraction or release of the movable core with respect to the fixed core. The actuator has a trip spring, energy-stored during the closing, that performs the interrupting upon stopping energization to the holding coil and thereby releasing the stored-energy. The actuator has an auxiliary contact operating with the operation of the movable core and performing energization switching with respect to the closing coil and the holding coil. The trip spring is provided on one side of the electromagnet in a horizontal direction while the auxiliary contact is provided on the other side.

Abstract translation: 用于接触器的致动器包括具有闭合线圈的电磁体，保持线圈，分别与闭合线圈和保持线圈缠绕的固定铁芯，设置在固定铁芯一侧的可动铁芯和轭铁。 主触点可移动部件通过相对于固定芯的吸引或释放可动芯来进行闭合或中断。 致动器具有跳闸弹簧，在闭合期间能量储存，其在停止对保持线圈的通电并且由此释放存储能量时执行中断。 致动器具有通过可动铁芯的操作操作的辅助接点，并且相对于闭合线圈和保持线圈进行通电切换。 跳闸弹簧在水平方向上设置在电磁体的一侧，而辅助触点设置在另一侧。

公开(公告)号：US20140360853A1

公开(公告)日：2014-12-11

申请号：US14295849

申请日：2014-06-04

Applicant: HITACHI, LTD.

Inventor： Takashi SATO ,  Kenji TSUCHIYA ,  Ayumu MORITA

IPC: H01H3/00

CPC classification number: H01H33/666 ,  H01H3/40 ,  H01H33/42

Abstract: A switchgear including a plurality of switch units having a fixed electrode and a movable electrode; and an operating device configured to operate the movable electrode of each of the switch units, wherein the operating device is configured of one motive part and two follower parts that intermittently operate with each other, and part of each of the follower parts touches the motive part, thereby in a condition that moving force is not transmitted from the motive part to the follower part, a state of the follower part is fixed, and in a condition that the motive part shifts from an initial position to a final position, a state of one of the follower parts is allowed to transit, and a state of the other of the follower parts is changed with a delay from such state transit, thereby the switch units are driven while a time delay is produced.

Abstract translation: 一种开关装置，包括具有固定电极和可动电极的多个开关单元; 以及操作装置，被配置为操作每个所述开关单元的可动电极，其中所述操作装置由相互间歇地操作的一个动力部分和两个随动部分构成，并且每个从动部分的一部分接触所述动力部分 因此在移动力不从动力部向从动部传递的状态下，从动部的状态是固定的，并且在动力部从初始位置向最终位置移动的状态下， 随动件部件中的一个被允许传送，另一个从动部件的状态从这种状态转移延迟地改变，从而在产生时间延迟的同时驱动开关单元。