专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2012177571A Ac power measuring device 有权
标题翻译：交流电力测量装置
公开(公告)号：JP2012177571A
公开(公告)日：2012-09-13
申请号：JP2011039632
申请日：2011-02-25
申请人： Hitachi Electric Systems Ltd , Ibaraki Univ , 国立大学法人茨城大学 , 株式会社日立エレクトリックシステムズ
发明人： FUNATO SUGURU , MIYAMOTO AKIRA , TAKAHASHI MATSUO , SAKAI AKIHITO , YANAGIHIRA TAKESHI
IPC分类号： G01R21/133 , G01R22/00
摘要： PROBLEM TO BE SOLVED: To provide an AC power measuring device capable of keeping average power within the range of a desired detection error to measure the average power by using a voltage value of insulation electric wire detected in a non-contact manner by voltage detecting means and a current value detected by a current transformer.SOLUTION: Probes 12R and 12S for making capacitance generated by electrodes 12R2 and 12S2 to be a value calculated in advance are arranged on outside surfaces of insulation coatings 11R2 and 11S2 of insulation electric wires 11R and 11S, respectively, and a current transformer 13R is arranged at the insulation electric wire 11R. A measuring instrument 20 for performing an arithmetic operation by using a detected AC voltage value and AC current value is provided and has at least a voltage detecting part 21 including a partial pressure resistance circuit including an input resistor and an output resistor connected to the probes 12R and 12S, and an operation amplifier circuit for performing operation amplification of a partial pressure voltage signal, a current detecting part 22 for detecting current of the current transformer, analog/digital converters 23 and 24 for respectively converting each signal, and an operation processor for calculating AC current on the basis of signals from the analog/digital converters 23 and 24.
摘要翻译：要解决的问题：提供一种交流电力测量装置，其能够将平均功率保持在期望的检测误差的范围内，以通过使用以非接触方式检测的绝缘电线的电压值来测量平均功率电压检测装置和由电流互感器检测的电流值。解决方案：将由电极12R2和12S2产生的电容量作为预先计算的值的探针12R和12S分别布置在绝缘电线11R和11S的绝缘涂层11R2和11S2的外表面上，并且电流互感器 13R布置在绝缘电线11R处。提供一种用于通过使用检测到的AC电压值和AC电流值进行算术运算的测量仪器20，并且至少具有电压检测部21，该电压检测部21包括分压电阻电路，该电压检测部21包括连接到探针12R的输入电阻器和输出电阻器和12S，以及用于执行分压电压信号的操作放大的运算放大器电路，用于检测电流互感器的电流的电流检测部分22，用于分别转换每个信号的模数转换器23和24;以及用于根据来自模拟/数字转换器23和24的信号计算交流电流。版权所有：（C）2012，JPO＆INPIT

2. 发明专利

JP2007083971A Abnormality detection device for railroad 审中-公开
标题翻译：非线性检测装置
公开(公告)号：JP2007083971A
公开(公告)日：2007-04-05
申请号：JP2005277720
申请日：2005-09-26
申请人： Hitachi Electric Systems Ltd , 株式会社日立エレクトリックシステムズ
发明人： MUKONO SHIGEO , TATSUMIYA MASAAKI
IPC分类号： B61L23/00
摘要： PROBLEM TO BE SOLVED: To ensure the safety of passengers and crew by detecting landslide, snowslide or the like to a railroad by means of an inexpensive device and stopping a train utilizing a track circuit and a signal facility. SOLUTION: Tension variation detectors 2A, 2C are installed at a side (one side or both sides) of a rail 1, wires 3A, 3B, 3C, 3D are attached to both sides and each one end is fixed to piles 4A, 4B, 4C, 4D through a spring in the tension-retaining state. The tension variation detector 2A (2C) does not perform detection the case where the tensions of the wires 3A, 3B (3C, 3D) of both ends are approximately equal and performs detection when difference of the tension becomes a set value or higher to close a contact at the inside. When the contact (at least one contact) of the tension variation detectors 2A, 2C is closed, left and right rails 1 are connected by electric wires 8A, 8C for rail short circuit and a power source circuit 5 of the existing track circuit 10 for train detection becomes in the short circuit state. Thereby, a relay 6 becomes in the non-application state and a signal 7 becomes red display. The relay 6 becomes blue display in the application state of the power source. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过廉价的设备检测铁路的滑坡，滑雪等来确保乘客和乘务员的安全，并且利用轨道电路和信号设备停止列车。解决方案：张力变化检测器2A，2C安装在轨道1的一侧（一侧或两侧），电线3A，3B，3C，3D安装在两侧，并且每一端固定到桩4A ，4B，4C，4D通过处于张力保持状态的弹簧。张力变化检测器2A（2C）不执行两端的线3A，3B（3C，3D）的张力近似相等的情况，并且当张力的差异成为设定值以上以进行闭合时，进行检测内部的联系人。当张力变化检测器2A，2C的接触（至少一个接触）闭合时，左右导轨1通过用于轨道短路的电线8A，8C连接，并且现有轨道电路10的电源电路5连接列车检测变为短路状态。因此，继电器6变为非施加状态，信号7变为红色显示。继电器6在电源的应用状态下变为蓝色显示。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005032522A ELECTROMAGNETICALLY OPERATED SWITCHING DEVICE 审中-公开
公开(公告)号：JP2005032522A
公开(公告)日：2005-02-03
申请号：JP2003195204
申请日：2003-07-10
申请人： HITACHI LTD , HITACHI ELECTRIC SYSTEMS LTD
发明人： SUGINO TOMOYOSHI , YABU MASAHITO , MORITA AYUMI , NAKAYAMA YOSHIKO
IPC分类号： H01H33/66 , H01H9/54 , H01H33/38 , H01H33/59
摘要： PROBLEM TO BE SOLVED: To facilitate the discharge of a charge stored in a capacitor, when a switching device is not used. SOLUTION: When a front cover 166 is removed, if capacitor discharging terminals 242, 244 on a control substrate are short-circuited by a capacitor discharging plug 246, charge stored in a capacitor 16 are discharged via a discharging resistor Rc and the capacitor discharge plug 246. Therefore, the charge stored in the capacitor 16 is completely discharged, and inspection work and the like can be performed with safety. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2005028260A DIAPHRAGM ELECTROLYTIC DEVICE AND Ca/Mg REMOVAL METHOD THEREFOR 审中-公开
标题翻译：膜电解装置及其去除Ca / Mg的方法
公开(公告)号：JP2005028260A
公开(公告)日：2005-02-03
申请号：JP2003194903
申请日：2003-07-10
申请人： Hitachi Electric Systems Ltd , Hitachi Ltd , 株式会社日立エレクトリックシステムズ , 株式会社日立製作所
发明人： OKADA AKIHIKO , SHIONO SHIGEO , MUKONO SHIGEO , TATSUMIYA MASAAKI
IPC分类号： C02F1/42 , C02F1/46 , C25B1/26 , C25B15/08
摘要： PROBLEM TO BE SOLVED: To provide a diaphragm electrolytic device and a Ca/Mg removal method therefor which can lengthen the life span of an ion-exchange membrane and reduce the running cost of a drinking water treatment plant.
SOLUTION: In the Ca/Mg removal method for this device, dilution water 1A obtained by removing Ca/Mg contained in feed water 1 by a Ca/Mg removal machine 3 disposed on the supply side is fed to a dissolving tank and an electrolytic cell 4. Thereby the deposition of Ca/Mg on the ion-exchange membrane 9 is prevented to lengthen the life span of the ion-exchange membrane 9 and to reduce the running cost of the drinking water treatment plant.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可以延长离子交换膜的寿命并降低饮用水处理厂的运行成本的隔膜电解装置和Ca / Mg去除方法。解决方案：在该装置的Ca / Mg去除方法中，通过由配置在供给侧的Ca / Mg去除机3除去供给水1中所含的Ca / Mg而得到的稀释水1A被供给到溶解槽，从而能够防止离子交换膜9上的Ca / Mg析出，延长离子交换膜9的使用寿命，降低饮用水处理厂的运行成本。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2003117550A CITY WATER SOFTENING DEVICE 审中-公开
公开(公告)号：JP2003117550A
公开(公告)日：2003-04-22
申请号：JP2001315086
申请日：2001-10-12
申请人： HITACHI ELECTRIC SYSTEMS LTD
发明人： AOSHIMA MASARU , NAKAMURA SUSUMU , NAKASUJI AKIRA , MATSUOKA TETSUO , HONDA HARUO
IPC分类号： C02F1/42 , B01J49/00
摘要： PROBLEM TO BE SOLVED: To provide a city water softening device capable of economically realizing a rational soft water supply. SOLUTION: Supply for softening and supply for raw water are performed by using a water softening tank 1 for softening the city water and a bypass piping 20 by selectively using three-way solenoid valves 12 and 18, and the ion exchange capacity of an ion exchange resin particle layer 2 is recovered by supplying regeneration salt water to the water softening tank 1 at the time of raw water supply.

6. 发明专利

JP2001025112A DISTRIBUTION PANEL 失效
公开(公告)号：JP2001025112A
公开(公告)日：2001-01-26
申请号：JP19316599
申请日：1999-07-07
申请人： HITACHI ELECTRIC SYSTEMS LTD
发明人： MUKONO SHIGEO , HIDA TADASHI , YOSHIKAWA ISAO
IPC分类号： H02B1/16 , H02B1/30
摘要： PROBLEM TO BE SOLVED: To prevent generation of electrical shocks and simplify a clamping process of firmly joining parts to each other by forming a ground conductive path set, so that clamping hardware and a protrusion formed on a flat part pierce through the insulating film by the clamping force of the clamping hardwire and reach a metal plate. SOLUTION: The cut area of a spring washer 12 bursts through the printed film of a corresponding surface 5A and reaches the metal part thereof by the rotation of a bolt head 11A during clamping process. A protrusion 18 bursts through the painted film by clamping clamping hardware 13 and reaches the metal part of a corresponding surface 3A to form a ground conductive path. Since the charging current of a housing 1 flows in a sequence of a corresponding surface 5A, the spring washer 12, a bolt 11, the clamping hardware 13, a flat part 14, the protrusion 18, the corresponding surface 3A, and a ground, E the potential becomes zero at all times, so that there is no possibility of receiving electric shocks. Effective clamping operation can be obtained, and the corresponding surfaces 3A, 5A can be fastened firmly to each other.

7. 发明专利

JPH11262116A SWITCHBOARD 失效
公开(公告)号：JPH11262116A
公开(公告)日：1999-09-24
申请号：JP5671798
申请日：1998-03-09
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , ONO MINORU
IPC分类号： H02B3/00 , H02B1/32
摘要： PROBLEM TO BE SOLVED: To provide a switchboard, capable of coping with miniaturization by reducing dimensions in three directions of a relay control part together. SOLUTION: A switchboard 1 consists of a driving circuit part 13 supplying power to a load, and a control circuit part 16 having a relay control part containing a plurality of relays for controlling the driving circuit part 13. The relay control part consists of a relay module 3 in which a plurality of relays 6a, 6b, 6c, 6d and a plurality of connectors 5a, 5b, 5c for repeating electric signals operating the relays are arranged along the direction of operation of relay contacts, and a module is constituted by using a printed wiring board 7. Thereby dimensions of the width, the height and the thickness of the module 3 are reduced, and miniaturization is realized.

8. 发明专利

JPH11205947A DUCT WITH WIRE PASSING-THROUGH HOLES FOR SWITCHBOARD AND SWITCHBOARD EMPLOYING THE SAME 失效
公开(公告)号：JPH11205947A
公开(公告)日：1999-07-30
申请号：JP107698
申请日：1998-01-06
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , KITAGAWA MIKIO
IPC分类号： H02B1/20 , H02G3/04
摘要： PROBLEM TO BE SOLVED: To provide a duct with wire passing-through holes for a switchboard which facilitates treatment of excessive lengths of wires connected to apparatuses in the switchboard. SOLUTION: A duct 10 with wire passing-through holes for a switchboard has partition plates 2 and 3 with wire passing-through holes 8 by which the inside of the duct is partitioned in a longitudinal direction and attachment holes 9 for fixing the duct. As the inside of the duct is partitioned into a central neatly arranged wire passage 5 and 1st and 2nd excessive wire passages 6 and 7 provided on the left and right sides of the central neatly arranged wire passage 5, the excessive lengths of branch wires branched into the left and the right sides can be treated without the interference of main wires in the central neatly arranged wire passage 5.

9. 发明专利

JPH11205923A DISTRIBUTION PANEL 失效
公开(公告)号：JPH11205923A
公开(公告)日：1999-07-30
申请号：JP107598
申请日：1998-01-06
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , KITAGAWA MIKIO
IPC分类号： H02B1/20 , H02B3/00 , H02G5/06
摘要： PROBLEM TO BE SOLVED: To provide a distribution panel which makes possible an easy modification of a control equipment afterward and an easy maintenance/inspection of a power supply bus. SOLUTION: A distribution panel 10 is provided with a terminal stand 51 having a plurality of terminals including a P-phase terminal 51p and an N-phase terminal 51n connected to power supplies of different phases outside the panel, a P-phase power supply bus 41 connected to the P-phase terminal 51p, an N- phase power supply bus 42 connected to an N-phase terminal 51n, and displays 21, 22 and relays 31, 32, 33 as control equipments, each having an equipment terminal connected to a corresponding power supply bus. A P-phase power supply bus bar 43 and an N-phase power supply bus bar 44, each having a plurality of bus terminals 97 which make possible a one-on-one connection between the equipment terminal and the power supply bus for each control equipment, are installed as extensions of the power supply buses 41, 42. Each equipment terminal is connected one-on-one to the corresponding bus terminal 97 through a connection wire 53, 54 in parallel with the power supply buses 41, 42.

10. 发明专利

JPH11148464A CONTROL METHOD AND CONTROL DEVICE FOR AIR COMPRESSION EQUIPMENT 失效
公开(公告)号：JPH11148464A
公开(公告)日：1999-06-02
申请号：JP31019297
申请日：1997-11-12
申请人： HITACHI LTD , HITACHI ELECTRIC SYSTEMS
发明人： TANABE MAMORU , MOMOCHI YASUSHI , MIZOGUCHI TSUYOSHI , SHIBATA EKIZO , TAKAHASHI MATSUO
IPC分类号： F04B49/06 , G05B11/36 , G05D16/20
摘要： PROBLEM TO BE SOLVED: To cope with the variation of the number of operational stands in parallel, in a system feeding compressed air by operating a plurality of air compression equipment in parallel. SOLUTION: A control device 8 controlling a plurality of air compression equipments, detects a signal from an original pressure pressure converter 5 of a receiver tank 1 common to a plurality of operational stands. Each air compression equipment is controlled by means of a common control device 7 formed out of a deviation pressure operating means detecting the deviation from the set signal of a target pressure, a PID operating means, and of a dispersion shape control signal transferring means by way of the dispersion shape control signal transferring means, a N set number compression equipment operating a condition detecting means, and a PID operational result detecting means, which are provided on individual control devices 6-1 through 6-4 by each set number.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式