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1. 发明专利

JP2014006217A Insulation diagnosis method for rotary electric machine and insulation diagnosing apparatus for the same 有权
标题翻译：旋转电机绝缘诊断方法及其绝缘诊断装置
公开(公告)号：JP2014006217A
公开(公告)日：2014-01-16
申请号：JP2012143810
申请日：2012-06-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TANAKA KIYOTERU , KOJIMA HIROAKI , HIGASHIMURA YUTAKA , SUZUKI KEIJI , ONODA MITSURU
IPC分类号： G01R31/34 , G01R31/12
摘要： PROBLEM TO BE SOLVED: To enable insulation deterioration condition of a stator coil to be accurately assessed.SOLUTION: An insulation diagnosing apparatus for a rotary electric machine comprises: a voltage measuring system for measuring a voltage applied to a stator coil of a rotary electric machine; a partial discharge quantity detector that acquires the quantity of a partial discharge generated from the main insulating layer of the stator coil caused by the applied voltage; a computer that acquires the applied voltage and characteristics of the partial discharge quantity; an arithmetic unit that performs arithmetic operation on the basis of the partial discharge quantity acquired by the computer, a differential partial discharge quantity expressed in a natural logarithm of the applied voltage, and a preset value; and an assessing unit that assesses the deterioration of insulation of the stator coil on the basis of the arithmetic operation result by the arithmetic unit.
摘要翻译：要解决的问题：确保定子线圈的绝缘劣化状况得到准确评估。解决方案：一种用于旋转电机的绝缘诊断装置，包括：电压测量系统，用于测量施加到旋转电机的定子线圈的电压 ; 局部放电量检测器，其获取由所施加的电压引起的由定子线圈的主绝缘层产生的局部放电的量; 获取施加的电压和局部放电量的特性的计算机; 基于由计算机获取的局部放电量进行算术运算的运算单元，以施加电压的自然对数表示的差分局部放电量和预设值; 以及评估单元，其基于算术单元的算术运算结果来评估定子线圈的绝缘的劣化。

2. 发明专利

JP2013027219A Rotary electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2013027219A
公开(公告)日：2013-02-04
申请号：JP2011161535
申请日：2011-07-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MORIYAMA TOMOHIRO , ICHIMURA SATOSHI , ASAKAWA HIDEAKI , ONODA MITSURU , SUZUKI KEIJI
IPC分类号： H02K3/40
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine capable of preventing burnout of a corona shield layer extending out of a slot of a stator core in simple means.SOLUTION: A stator coil 7, having a corona shield layer 14 formed on a surface of a main insulation layer, is mounted in a slot 6 of a stator core 5 via a plurality of slot liners 12, and resistance increase means (12, 17, and 18), with which resistance of a layer becomes larger as it is away from the stator coil 7, are provided in the slot liner 12 composed of a plurality of layers. With the above-mentioned configuration, burnout of the slot liner 12 due to concentration of a charge current can be prevented, because charge current density can be reduced with the resistance increase means even if a partial contact portion occurs between slot liners 12 at a core outlet part 7B out of the slot 6.
摘要翻译：要解决的问题：提供一种能够以简单的方式防止从定子芯的槽延伸出的电晕屏蔽层的烧坏的旋转电机。解决方案：具有形成在主绝缘层的表面上的电晕屏蔽层14的定子线圈7通过多个槽衬12安装在定子铁芯5的槽6中，并且电阻增加装置 12,17和18），由于离开定子线圈7，层的电阻变大，所以设置在由多层构成的槽衬12中。利用上述结构，可以防止由于充电电流的集中而导致的槽衬套12的烧坏，因为即使在芯部的插槽衬垫12之间发生部分接触部分，也可以通过电阻增加装置来降低充电电流密度出口部分7B脱离插槽6.版权所有：（C）2013，JPO＆INPIT

3. 发明专利

JP2011250563A Manufacturing method for coil of rotary electric machine 审中-公开
标题翻译：旋转电机线圈制造方法
公开(公告)号：JP2011250563A
公开(公告)日：2011-12-08
申请号：JP2010120428
申请日：2010-05-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ICHIMURA SATOSHI , MORIYAMA TOMOHIRO , YAGIHASHI YOSITAKA , TANAKA KIYOTERU , KOJIMA HIROAKI , HIGASHIMURA YUTAKA , SUZUKI KEIJI , ONODA MITSURU
IPC分类号： H02K3/34 , H02K15/12
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for a coil of a rotary electric machine capable of winding a main insulation tape forming a main insulation layer in equal thickness around the whole circumference.SOLUTION: In a manufacturing method for a coil of a rotary electric machine presented in this invention, a wire consolidated coil 15 is formed by bundling multiple numbers of wire conductors 16 coated with wire insulation layers 17; a first insulation resin 19, which is solid at normal temperature, flows when heated, and becomes cured when heated in higher temperature, is arranged in corners (18C, 22C) of the wire consolidated coil 15; a main insulation tape 20 is wound around the wire consolidated coil 15 and the first insulation resins 19 being the above state; the first insulation resin 19 is fluidized by performing a first heating on the wire consolidated coil 15 wound with the main insulation tape 20 that is impregnated with a second thermo-setting insulation resin; and a main insulation layer 21 is formed by performing a second heating in higher temperature on the wire consolidated coil 15 wound with the main insulation tape 20, by which the first and second insulation resins are cured.
摘要翻译：解决的问题：提供一种旋转电机的线圈的制造方法，该旋转电机的线圈能够围绕整个圆周缠绕形成相同厚度的主绝缘层的主绝缘带。解决方案：在本发明的旋转电机的线圈的制造方法中，通过捆扎多根导体绝缘层17的导线16形成线固定线圈15，常温下为固体的第一绝缘树脂19在加热时流动，并且在线圈加固线圈15的角部（18C，22C）中设置在较高温度下加热时固化; 主绝缘带20缠绕在线固定线圈15上，第一绝缘树脂19处于上述状态; 第一绝缘树脂19通过对浸渍有第二热固性绝缘树脂的主绝缘带20缠绕的线固化线圈15进行第一加热而流化; 并且通过在主绝缘带20卷绕的线固定线圈15上进行较高温度的第二次加热来形成主绝缘层21，由此第一和第二绝缘树脂被固化。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2003329792A Apparatus and method for measuring core flow rate 有权
标题翻译：测量核心流速的装置和方法
公开(公告)号：JP2003329792A
公开(公告)日：2003-11-19
申请号：JP2002133438
申请日：2002-05-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMADA IZUMI , ARITA SETSUO , OTSUKA MASAYA , HASEGAWA MAKOTO , SONEDA HIDEO , HASHIMOTO KAZUYOSHI , SUZUKI KEIJI , UTENA SHUNSUKE
IPC分类号： G21C17/032
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for measuring core flow rate capable of measuring core flow rate of a boiling water reactor stably for a long time after the operation of a plant is started, in a simple constitution of equipment, and provide a method for measuring core flow rate. SOLUTION: The apparatus comprises a plurality of ultrasonic transmitter/ receiver means installed in the circumference of an outer wall constituting a pressure vessel of the boiling water reactor and a core flow rate calculating means for obtaining mean linear flow rates of a cooling medium in downcomers corresponding to installation positions of the ultrasonic transmitter/receiver means from propagation times of ultrasonic waves in the downcomers measured by the respective ultrasonic transmitter/receiver means and calculating the core flow rate of the cooling medium by using the mean linear flow rates thus obtained. The ultrasonic transmitter/receiver means are installed in lower zones of the downcomers where substantially no bubbles are present in rated operation of the reactor. The lower zone of the downcomer corresponds to a region within 3 m upward from a top of an internal pump. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于测量在开始操作植物之后长时间稳定地测量沸水反应堆的核心流量的芯流量的装置，以简单的设备结构，以及提供一种测量核心流量的方法。解决方案：该装置包括安装在构成沸水反应堆的压力容器的外壁的圆周中的多个超声波发射/接收装置和用于获得冷却介质的平均线性流速的芯流量计算装置对应于超声波发射器/接收器装置的安装位置的降液器是由各个超声波发射器/接收器装置测量的降液管中的超声波的传播时间，并通过使用由此获得的平均线性流速计算冷却介质的核心流速。超声波发射器/接收器装置安装在下降管的下部区域中，在反应器的额定运行中基本上不存在气泡。降液管的下部区域对应于从内部泵的顶部向上3m内的区域。版权所有（C）2004，JPO

5. 发明专利

JP2000075943A Power unit 审中-公开
标题翻译：动力单元
公开(公告)号：JP2000075943A
公开(公告)日：2000-03-14
申请号：JP25754298
申请日：1998-08-26
申请人： Hitachi Ltd , Internatl Business Mach Corp , インターナショナル・ビジネス・マシーンズ・コーポレイション , 株式会社日立製作所
发明人： KAWABATA KENJI , OKADA TAKASHI , IKEDA RYUICHI , SUGINO MOTOHIRO , MAMIYA TAKESHIGE , SUZUKI KEIJI
IPC分类号： H05B41/282 , G05F1/56 , H02M3/00
摘要： PROBLEM TO BE SOLVED: To obtain a power unit which has excellent power efficiency. SOLUTION: This power unit has a 1st power source part including a chopping transistor 2, a 2nd power source part including a chopping transistor 18, and a discharge lamp turning-on circuit part including a chopping transistor 35. In this case, a current detector 31 detects the current flowing to a load resistance 8 and a voltage comparator 32 compares it with a reference voltage 33. When the load current is below a specific level, a transistor 30 is turned off with the output of the voltage comparator 32. Consequently, a control circuit of the 2nd power source part and a driving circuit of the chopping transistor 18 are powered off and the 2nd power source part stops operating. Thereafter, the load resistance 8 at light load time is supplied power by the 1st power source part.
摘要翻译：要解决的问题：获得具有优异的功率效率的功率单元。解决方案：该电源单元具有包括斩波晶体管2的第一电源部分，包括斩波晶体管18的第二电源部分和包括斩波晶体管35的放电灯导通电路部分。在这种情况下，电流检测器 31检测流到负载电阻8的电流，电压比较器32将其与参考电压33进行比较。当负载电流低于特定电平时，晶体管30随着电压比较器32的输出而截止。因此，第二电源部分的控制电路和斩波晶体管18的驱动电路断电，第二电源部分停止工作。此后，轻负载时的负载电阻8由第一电源部供电。

6. 发明专利

JP2013232994A Rotary electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2013232994A
公开(公告)日：2013-11-14
申请号：JP2012102197
申请日：2012-04-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IGA YOSHIHIKO , YAMAMOTO YUKIHIRO , TAKAHASHI KAZUHIKO , SUZUKI KEIJI , ASAKAWA HIDEAKI , WATANABE MASAHIRO
IPC分类号： H02K3/50
摘要： PROBLEM TO BE SOLVED: To solve the problem of a rotary electric machine in which a coil end winding and a support ring are fastened and fixed by being totally manually bound with a binding material, so that many times and costs are required, and there is a large rotary electric machine having 500 fastening portions or more of the coil end winding and the support ring, in which reduction in the total number of fastening portions with binding materials is required while fastening rigidity of the coil end winding of a stator is maintained.SOLUTION: In a rotary electric machine, when a coil end winding and a support ring, or coil end windings adjacent to each other, are bound with binding materials, an intermediate plate with a predetermined thickness is arranged between the coil end winding and the binding materials so that the binding materials are wound over the plate to bound them. Accordingly, a distance between the binding materials is increased by the intermediate plate, so that fastening rigidity of fastening portions can be increased. The increased rigidity can be calculated in a design step of the rotary electric machine in advance, so that the total number of fastening portions with the binding materials can be reduced while fastening rigidity of the coil end winding is maintained.
摘要翻译：要解决的问题：为了解决通过完全由装订材料手动地结合线圈端绕组和支撑环来固定和固定的旋转电机的问题，因此需要多次和成本，并且存在具有500个紧固部分或更多个线圈端部绕组和支撑环的大型旋转电机，其中需要减少具有装订材料的紧固部分的总数，同时保持定子的线圈端部绕组的紧固刚度。解决方案：在旋转电机中，当线圈端绕组和支撑环或彼此相邻的线圈端绕组与装订材料结合时，具有预定厚度的中间板布置在线圈端绕组和绑定件之间材料，使得粘合材料缠绕在板上以使其结合。因此，通过中间板增加了装订材料之间的距离，从而可以增加紧固部的紧固刚性。可以预先在旋转电机的设计步骤中计算出增加的刚度，从而可以在保持线圈端部绕组的紧固刚性的同时减少具有装订材料的紧固部分的总数。

7. 发明专利

JP2012149971A Partial discharge test method for inverter-driven rotating electrical machine 有权
标题翻译：逆变器旋转电机的部分放电测试方法
公开(公告)号：JP2012149971A
公开(公告)日：2012-08-09
申请号：JP2011008383
申请日：2011-01-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHATA KOJI , HIGASHIMURA YUTAKA , SUZUKI KEIJI
IPC分类号： G01R31/12 , G01R31/34 , H02K11/00
CPC分类号： G01R31/346 , G01R15/16 , G01R31/1272
摘要： PROBLEM TO BE SOLVED: To provide a method for accurately measuring partial discharge between winding turns of a rotating electrical machine by generation of a voltage equal to that when inverter-driven between the winding turns, and an inverter-driven rotating electrical machine having appropriate quality secured by the method.SOLUTION: A conductive foil or a conductive rubber is disposed on an insulating layer surface of coil conductor series connection or a coil turn conductor of a winding of a rotating electrical machine. Through electrostatic capacitance of the insulating layer of the coil conductor series connection or the coil turn conductor, waveforms of earth voltage of the respective portions are measured. The partial discharge measurement is performed by measuring the voltage generated across the coil or between the winding turns resulting from the difference between the waveforms of the earth voltage. The testing voltage of an impulse voltage partial discharge measurement is determined based on the measured voltage between the winding turns.
摘要翻译：要解决的问题：提供一种通过产生与绕组匝之间的逆变器驱动相同的电压的电压来精确地测量旋转电机的匝数之间的局部放电的方法，以及逆变器驱动的旋转电机具有通过该方法保证的适当质量。解决方案：导电箔或导电橡胶设置在线圈导体串联连接的绝缘层表面或旋转电机的绕组的线圈匝导体上。通过线圈导体串联或线圈导体的绝缘层的静电电容，测量各部分的接地电压波形。通过测量线圈产生的电压或由接地电压的波形之间的差异导致的绕组匝之间进行局部放电测量。脉冲电压局部放电测量的测试电压是根据绕组匝间的测量电压来确定的。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2012081703A Method for analyzing growth of void of resin in porous body 有权
标题翻译：分析多孔体内树脂空隙生长的方法
公开(公告)号：JP2012081703A
公开(公告)日：2012-04-26
申请号：JP2010231764
申请日：2010-10-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUCHI HIROKI , KONO TSUTOMU , SUZUKI KEIJI , ONODA MITSURU , GOTO KAZUO , KAGEYAMA YASUAKI , SATO NAOHIRO
IPC分类号： B29C43/32 , B29C43/02 , B29K105/04 , G06F17/50
CPC分类号： G06F17/5009 , G06F17/5018 , G06F2217/76 , Y02T10/82
摘要： PROBLEM TO BE SOLVED: To provide a method for analyzing growth of voids of a resin in a porous body that allows comprehensive prediction of the generation/growth, flow behavior, and distribution of voids in a resin in resin impregnation molding of a porous body.SOLUTION: The method is configured to analyze the distribution of voids, generated inside a porous body impregnated with a resin material, by heating and compressing the porous body with a mold. The method comprises the following steps, that is: a step for dividing the shape of the porous body, filled with a resin material, into three-dimensional solid elements; a step for inputting physical properties of the porous body, filled with a resin material, and boundary conditions including pressurizing force for pressurizing the porous body with the mold; and a step for obtaining the resin-density distribution in the porous body, divided into the three-dimensional solid elements, by a fluid analysis while using a database obtained by experimentally measuring in advance a temporal change in volume of gas generated from the resin material when the porous body is heated with the mold. It is configured to illustrate the following distributions side by side on a screen, that is, the obtained resin-density distribution of the porous body divided into the three-dimensional solid elements, and the resin-density distribution of the porous body before being pressurized with the mold.
摘要翻译：要解决的问题：提供一种分析多孔体中的树脂的生长的方法，其能够综合地预测树脂的树脂浸渍成型中的树脂的生成/生长，流动行为和空隙的分布多孔体。解决方案：该方法被配置为通过用模具加热和压缩多孔体来分析在浸渍有树脂材料的多孔体内产生的空隙的分布。该方法包括以下步骤：将填充有树脂材料的多孔体的形状分成三维固体元素的步骤; 用于输入填充有树脂材料的多孔体的物理性质的步骤和包括用于对模具加压多孔体的加压力的边界条件; 以及通过流体分析获得分解成三维固体元素的多孔体中的树脂密度分布的步骤，同时使用通过实验测量获得的数据库，从而获得由树脂材料产生的气体的时间变化当多孔体被模具加热时。其结构是在屏幕上并排示出以下分布，即所获得的分为三维固体元素的多孔体的树脂密度分布和加压前的多孔体的树脂密度分布与模具。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2011166871A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2011166871A
公开(公告)日：2011-08-25
申请号：JP2010024001
申请日：2010-02-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： GOTO FUMIHIKO , MUTO TORU , SUZUKI KEIJI
IPC分类号： H02K3/50
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine that enables reduction of stress due to vibration and thermal elongation and can endure long-time operation and repetitive start and stop.
SOLUTION: The rotary electric machine is configured by attaching a stator formed by winding a stator winding on a stator core to a stator frame, attaching a connecting wire attachment unit to the stator or the stator frame, and connecting the coil end of the stator wining and a lead via a connecting wire provided on the connecting wire attachment unit with a conductor. The coil end of the stator winding is connected to the connecting wire on the connecting wire attachment unit with a flexible connecting conductor.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少由于振动和热伸长引起的应力的旋转电机，并且可以耐受长时间的操作和重复的启动和停止。解决方案：旋转电机通过将通过将定子绕组定子绕组定位成定子框架而形成的定子构成，将连接线附接单元附接到定子或定子框架，并且将线圈端所述定子通过设置在所述连接线附接单元上的导线经由连接线引导。定子绕组的线圈端通过柔性连接导体与连接线连接单元上的连接线连接。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011024330A Rotating electrical machine 有权
标题翻译：旋转电机
公开(公告)号：JP2011024330A
公开(公告)日：2011-02-03
申请号：JP2009166699
申请日：2009-07-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： GOTO FUMIHIKO , SEZAKI MITSUNORI , MURAYAMA HIROHIDE , SUZUKI KEIJI
IPC分类号： H02K3/50 , H02K15/04
摘要： PROBLEM TO BE SOLVED: To provide a rotating electrical machine which can stably support the coil end of a stator even if the number of installed spacers is reduced.
SOLUTION: Stator coil ends 3E jutted from stator cores 2 are bound together and supported with a plurality of supporting rings 5A-5C, and also spacers 8 are installed in the vicinity of adjacent stator coil ends of different phases (U, V, and W) between the supporting rings 5A-5C, thus the stator coil ends 3E that the spacers 8 contact are bound and supported with one another. By installing the spacers 8 only in the vicinity of the stator coil ends 3E of different phases adjoining each other in its circumferential direction where a large electromagnetic force works between the supporting rings 5A-5C, the number of installed spacers 8 can be reduced, and the stator coil ends 3E of different phases can be supported firmly, so that the stator coil ends can be supported stably.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使减少安装的间隔件的数量，提供一种可以稳定地支撑定子的线圈端的旋转电机。解决方案：从定子铁芯2突出的定子线圈端3E被结合在一起并被多个支撑环5A-5C支撑，并且隔板8安装在不同相位（U，V）的相邻定子线圈端附近和W），因此间隔件8接触的定子线圈端3E彼此结合和支撑。通过仅在位于支撑环5A-5C之间的大的电磁力的圆周方向上彼此相邻的不同相的定子线圈端3E的附近设置间隔件8，可以减少安装间隔件8的数量，可以牢固地支撑不同相的定子线圈端部3E，从而可以稳定地支撑定子线圈端部。版权所有（C）2011，JPO＆INPIT

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