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1. 发明专利

JP2014119345A Current detector 有权
标题翻译：电流检测器
公开(公告)号：JP2014119345A
公开(公告)日：2014-06-30
申请号：JP2012274597
申请日：2012-12-17
申请人： Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KURIHARA SUSUMU , KUDO TAKAHIRO
IPC分类号： G01R15/20 , G01R19/00
摘要： PROBLEM TO BE SOLVED: To provide a current detector which can be reduced in size and cost and allows the detection range and the use range of detection sensitivity to be extended.SOLUTION: A current detector 100 includes a measurement object conductor 2 in which a measurement current I flows, and an excitation coil 40 magnetically coupled to the measurement object conductor 2 by a magnetic core 3 electrically insulated from the conductor 2. The current detector 100 further includes: a rectangular wave oscillation circuit 5 which generates a rectangular wave voltage Va which inverts the direction of an excitation current Iex supplied to the excitation coil 40 with the magnetic core 3 in a saturated state or a state close to it; a duty detection circuit 6 which detects the measurement current I on the basis of a duty change of the rectangular wave voltage Va outputted from the circuit 5; a variable resistance part 8 connected in series to the excitation coil 40; and a number-of-turns changeover switch 24 capable of switching the number of turns of the excitation coil 40.
摘要翻译：要解决的问题：提供可以减小尺寸和成本并允许检测范围和检测灵敏度的使用范围得到扩展的电流检测器。解决方案：电流检测器100包括测量对象导体2，其中测量电流I流动，以及通过与导体2电绝缘的磁芯3与测量对象导体2磁耦合的励磁线圈40.电流检测器100还包括：矩形波振荡电路5，其生成矩形波电压Va，使磁芯3处于饱和状态或接近励磁线圈40的励磁线圈40的励磁电流Iex的方向反转; 基于从电路5输出的矩形波电压Va的占空比变化来检测测量电流I的占空比检测电路6; 与励磁线圈40串联连接的可变电阻部8; 以及能够切换励磁线圈40的匝数的匝数转换开关24。

2. 发明专利

JP2014049208A Electromagnetic contactor 有权
标题翻译：电磁接触器
公开(公告)号：JP2014049208A
公开(公告)日：2014-03-17
申请号：JP2012189281
申请日：2012-08-29
申请人： Fuji Electric Co Ltd , 富士電機株式会社 , Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KURIHARA SUSUMU , KUDO TAKAHIRO , MORITA AKIRA , TAGUCHI TAKAHIRO
IPC分类号： H01H50/04
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic contactor capable of detecting conduction of contacts even when the contacts cannot be visually inspected.SOLUTION: An electromagnetic contactor 1 comprises: a pair of contacts 33 arranged oppositely so as to come into contact with and separate from each other; an excitation coil 23 controlling the contact and separation of the pair of contacts 33; a switching element 16 connected in series to the excitation coil 23, and controlling a current to be supplied to the excitation coil 33; and a voltage detection circuit 17 detecting a source-drain voltage Vds of the switching element 16.
摘要翻译：要解决的问题：提供一种能够检测触点传导的电磁接触器，即使不能在目视检查触点时。电磁接触器1包括：一对触点33，其相对地设置成与触点接触和分离彼此; 励磁线圈23，其控制所述一对触点33的接触和分离; 与激励线圈23串联连接的开关元件16，控制供给励磁线圈33的电流; 以及检测开关元件16的源极 - 漏极电压Vds的电压检测电路17。

3. 发明专利

JP2012127718A Current detecting device 有权
标题翻译：电流检测装置
公开(公告)号：JP2012127718A
公开(公告)日：2012-07-05
申请号：JP2010277691
申请日：2010-12-14
申请人： Fuji Electric Co Ltd , Fuji Electric Fa Components & Systems Co Ltd , 富士電機株式会社 , 富士電機機器制御株式会社
发明人： KUDO TAKAHIRO , KURIHARA SHIN
IPC分类号： G01R15/18 , G01R31/02
摘要： PROBLEM TO BE SOLVED: To provide a compact current detecting device that is capable of detecting a micro current at low cost with small current consumption and is minimally affected by ambient environmental conditions.SOLUTION: A current detecting device comprises: an exciting coil 4 wound around a magnetic core 3 surrounding a lead wire where a measurement current flows; oscillation means 5 for generating, in accordance with a set threshold value, a rectangular wave voltage for inverting a direction of a magnetization current supplied to the exciting coil with the magnetic core placed in or in the vicinity of a saturated state; current detection means 6 for detecting the measurement current on the basis of change in a duty of the rectangular wave voltage output from the oscillation means 5; frequency detection means 7 for detecting a frequency of the rectangular wave voltage output from the oscillation means; and threshold setting means for setting the threshold value for the oscillation means on the basis of the frequency detected by the frequency detection means.
摘要翻译：要解决的问题：提供一种紧凑的电流检测装置，其能够以小的电流消耗以低成本检测微电流并且受到环境条件的影响最小。电流检测装置包括：励磁线圈4，缠绕在围绕测量电流流动的引线的磁芯3上; 振荡装置5，用于根据设定的阈值产生矩形波电压，用于使放置在饱和状态或接近饱和状态的磁芯反转供给励磁线圈的磁化电流的方向; 电流检测装置6，用于基于从振荡装置5输出的矩形波电压的占空比的变化来检测测量电流; 频率检测装置7，用于检测从振荡装置输出的矩形波电压的频率; 以及阈值设定装置，用于根据由频率检测装置检测的频率来设置振荡装置的阈值。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2007234250A Breaker tripping device 审中-公开
标题翻译：断路器传送装置
公开(公告)号：JP2007234250A
公开(公告)日：2007-09-13
申请号：JP2006051055
申请日：2006-02-27
申请人： Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KUDO TAKAHIRO , TAKAHASHI YASUHIRO
IPC分类号： H01H73/36 , H01F7/128 , H01F7/16 , H01H71/32
CPC分类号： H01H71/326 , H01F7/128 , H01F7/1615 , H01H71/322
摘要： PROBLEM TO BE SOLVED: To restrain foreign matter from intruding in a pole-contact face between a movable armature and a fixed armature of a release type electromagnetic device. SOLUTION: A breaker tripping device is composed so as to allow a trip mechanism to execute tripping operations by operating an electromagnet when an excessive load current or a leakage current flows into a main circuit. A telescopical member 12 telescopical corresponding to the protruding operation of the movable armature 6 is arranged so as to cover a tripping spring 8. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了抑制异物侵入可释放型电磁装置的可动电枢和固定电枢之间的极接触面。解决方案：断路器跳闸装置的组成是为了允许跳闸机构通过在过负载电流或漏电流流入主电路时操作电磁铁来执行跳闸操作。布置了与可动电枢6的伸出操作相对应的可伸缩构件12，以便覆盖跳闸弹簧8.版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2014206521A 電流検知装置有权
标题翻译：电流检测装置
公开(公告)号：JP2014206521A
公开(公告)日：2014-10-30
申请号：JP2013085698
申请日：2013-04-16
申请人：富士電機機器制御株式会社 , Fuji Electric Fa Components & Systems Co Ltd
发明人： KUDO TAKAHIRO , KURIHARA SUSUMU , TAKAHASHI YASUHIRO
IPC分类号： G01R15/18
摘要：【課題】周囲環境条件により影響を受けることが少なく、小型、低コストで、微小電流から大電流までの広い電流範囲の検知を行うことができる電流検知装置を提供する。【解決手段】測定電流が流れる導線を囲む磁気コア3に巻回した励磁コイル4と、測定した閾値に応じて、励磁コイルを飽和状態又はその近傍の状態で、励磁コイル4に供給する励磁電流の極性を反転させる出力電圧を発生するとともに、低域通過フィルタを備えた発振手段5と、発振手段5から出力される出力電圧のデューティ変化に基づいて測定電流を検知する電流検知手段6と、発振手段5から出力される出力電圧の周波数を検知する周波数検知手段7とを備え、電流検知手段6と周波数検知手段7のそれぞれの出力をもとに、測定電流を検知する。【選択図】図1
摘要翻译：要解决的问题：提供一种紧凑且廉价的电流检测装置，其能够检测从微小电流到大电流的宽电流范围，而不受到环境条件的任何影响。解决方案：电流检测装置包括：缠绕在其上的励磁线圈4 围绕测量电流流过的导体的磁芯3; 振荡装置5具有低通滤波器，用于根据测量的阈值产生用于使激励线圈处于饱和状态或其附近时提供给励磁线圈4的励磁电流的极性反转的输出电压; 电流检测装置6，用于根据从振荡装置5输出的输出电压的占空比变化来检测测量电流; 以及频率检测装置7，用于检测从振荡装置5输出的输出电压的频率。因此，可以根据每个电流检测装置6的输出和频率检测来检测测量电流意味着7。

6. 发明专利

JP2013235746A Electromagnetic switch 有权
标题翻译：电磁开关
公开(公告)号：JP2013235746A
公开(公告)日：2013-11-21
申请号：JP2012108032
申请日：2012-05-09
申请人： Fuji Electric Co Ltd , 富士電機株式会社 , Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KURIHARA SHIN , KUDO TAKAHIRO , SUZUKI KENJI , TAGUCHI TAKAHIRO
IPC分类号： H01H50/00
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic switch that monitors whether or not a movable contactor is in contact with a pair of fixed contactors.SOLUTION: An electromagnetic switch includes: a pair of fixed contactors 6a and 6b that are fixedly arranged at a predetermined interval in a contact housing case and that are interposed in a direct current path; a movable contactor 11 that is disposed so as to be movable close to and away from the pair of fixed contactors 6a and 6b; an electromagnet unit that moves the movable contactor 11; a pair of capacitors 42A and 42B that are separately connected to the respective fixed contactors 6a and 6b; a resistor 43 that is connected to respective second ends of the capacitors 42A and 42B; and a contact state detecting section 41 that detects impedance on both ends of the resistor 43 so as to detect an open state in which the movable contactor faces the fixed contactors 6a and 6b with a gap in between and a closed state in which the movable contactor is in contact with the fixed contactors 6a and 6b.
摘要翻译：要解决的问题：提供一种监视活动接触器是否与一对固定接触器接触的电磁开关。解决方案：电磁开关包括：固定地布置在预定的一对固定接触器6a和6b 接触壳体中的间隔并且插入在直流路径中; 可移动接触器11，其设置成能够靠近和远离一对固定接触器6a和6b移动; 移动可动接触器11的电磁体单元; 分别连接到各个固定接触器6a和6b的一对电容器42A和42B; 连接到电容器42A和42B的相应第二端的电阻器43; 以及接触状态检测部41，其检测电阻器43的两端的阻抗，以检测其中活动接触器面对固定接触器6a和6b的打开状态，间隔开间和闭合状态之间，其中活动接触器与固定接触器6a和6b接触。

7. 发明专利

JP2013213725A Current detection device 有权
标题翻译：电流检测装置
公开(公告)号：JP2013213725A
公开(公告)日：2013-10-17
申请号：JP2012083934
申请日：2012-04-02
申请人： Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KUDO TAKAHIRO , KURIHARA SHIN , TAKAHASHI YASUHIRO
IPC分类号： G01R19/00
摘要： PROBLEM TO BE SOLVED: To provide a current detection device receiving little influence by ambient environmental conditions, and capable of detecting a large current range from a minute current to a large current with a small body and a low cost.SOLUTION: A current detection device includes: an exciting coil 4 wound around a magnetic core 3 surrounding a conducting wire in which a measurement current flows; oscillating means 5 for generating output voltage reversing a polarity of an exciting current supplied to the exciting coil 4 in a saturation state or a close state thereof according to a measured threshold value; current detecting means 6 for detecting the measurement current on the basis of duty changes of the output voltage outputted from the oscillating means 5; frequency detecting means 7 for detecting the frequency of the output voltage outputted from the oscillating means 5; and amplitude detecting means 8 for detecting the amplitude of the output voltage outputted from the oscillating means 5. The measurement current is detected on the basis of the outputs of the current detecting means 6, the frequency detecting means 7, and the amplitude detecting means 8.
摘要翻译：要解决的问题：提供一种不受周围环境条件影响很小的电流检测装置，能够以小的电流检测大电流的大电流范围和低成本。解决方案：电流检测装置包括：围绕围绕导线的磁芯3缠绕在其中测量电流流动的励磁线圈4; 振荡装置5，用于根据测量的阈值产生在饱和状态或接近状态下反转提供给励磁线圈4的励磁电流的极性的输出电压; 电流检测装置6，用于根据从振荡装置5输出的输出电压的占空比变化来检测测量电流; 频率检测装置7，用于检测从振荡装置5输出的输出电压的频率; 以及振幅检测装置8，用于检测从振荡装置5输出的输出电压的振幅。基于电流检测装置6，频率检测装置7和振幅检测装置8的输出检测测量电流。

8. 发明专利

JP2008204714A Leakage tripping device of earth leakage breaker 有权
标题翻译：漏电断路器泄漏跳闸装置
公开(公告)号：JP2008204714A
公开(公告)日：2008-09-04
申请号：JP2007038103
申请日：2007-02-19
申请人： Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KUDO TAKAHIRO , TAKAHASHI YASUHIRO , ASANO HISANOBU
IPC分类号： H01H83/02
CPC分类号： H01H83/04 , H01H71/0207
摘要： PROBLEM TO BE SOLVED: To achieve space saving of a unit case and to improve assemblability while protecting earth-leakage functional components housed in the unit case from an arc gas. SOLUTION: In this leakage tripping device composed by mounting respective functional components in a body case of an earth leakage breaker by housing them in the unit case made of a resin, the unit case is composed of a lower case 19, a double-stacked case comprising a tray-like upper case 20 stacked on the lower case, and a case cover 21 covering an open surface of the upper case; a trip coil 6 and an earth leakage indication button 13 are housed in the lower case; a circuit board 22 with an earth leakage detection circuit 4, changeover switches, and an earth-leakage test switch 9 mounted thereon is housed in the upper case; and thereafter operation parts 7a, 8a and 9a of the current sensitive switch 7, the operation time switch 8 and the earth-leakage test switch 9 mounted on the circuit board are projected to the outside by penetrating the case cover. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了实现单元壳体的节省空间并提高组装性，同时保护容纳在单元壳体中的漏电功能部件与电弧气体。解决方案：在该泄漏脱扣装置中，通过将漏电断路器的主体壳体中的各个功能部件安装在由树脂制成的单元壳体中而构成，该单元壳体由下壳体19，双包括堆叠在下壳体上的托盘状上壳体20和覆盖上壳体的敞开表面的壳体盖21; 跳闸线圈6和漏电指示按钮13容纳在下壳体中; 具有接地漏电检测电路4的电路板22，转换开关和安装在其上的接地漏电测试开关9被容纳在上壳体中; 此后，安装在电路板上的电流敏感开关7，操作时间开关8和接地漏电测试开关9的操作部分7a，8a和9a通过穿透外壳盖而突出到外部。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2014202512A 電流検知装置有权
标题翻译：电流检测装置
公开(公告)号：JP2014202512A
公开(公告)日：2014-10-27
申请号：JP2013076604
申请日：2013-04-02
申请人：富士電機機器制御株式会社 , Fuji Electric Fa Components & Systems Co Ltd
发明人： KUDO TAKAHIRO , KURIHARA SUSUMU , TAKAHASHI YASUHIRO
IPC分类号： G01R19/00 , G01R15/20
摘要：【課題】周囲環境条件により影響を受けることが少なく、小型、低コストで、微小電流から大電流までの広い電流範囲の検知を行うことができる電流検知装置を提供する。【解決手段】測定電流が流れる導線を囲む磁気コア3に巻回した励磁コイル4と、測定した閾値に応じて、励磁コイルを飽和状態又はその近傍の状態で、励磁コイル4に供給する励磁電流の極性を反転させる出力電圧を発生する発振手段5と、発振手段5から出力される出力電圧のデューティ変化に基づいて測定電流を検知する第1の電流検知手段6a及び第2の電流検知手段6bと、発振手段5から出力される出力電圧の周波数を検知する周波数検知手段7と、発振手段5から出力される出力電圧の振幅を検知する振幅検知手段8とを備え、第1及び第2の電流検知手段6a、6bと周波数検知手段7と振幅検知手段8のそれぞれの出力をもとに、測定電流を検知する。【選択図】図1
摘要翻译：要解决的问题：提供一种紧凑且廉价的电流检测装置，其能够检测从微小电流到大电流的宽电流范围，而不受到环境条件的任何影响。解决方案：电流检测装置包括：缠绕在其上的励磁线圈4 围绕测量电流流过的导体的磁芯3; 振荡装置5，用于根据测量的阈值产生用于使激励线圈被置于饱和状态或其附近时提供给励磁线圈4的励磁电流的极性反转的输出电压; 第一电流检测装置6a和第二电流检测装置6b，用于根据从振荡装置5输出的输出电压的占空比变化检测测量电流; 频率检测装置7，用于检测从振荡装置5输出的输出电压的频率; 以及振幅检测装置8，用于检测从振荡装置5输出的输出电压的振幅。因此，可以基于第一和第二电流检测装置6a和第二电流检测装置6a的输出来检测测量电流 6b，频率检测装置7和振幅检测装置8。

10. 发明专利

JP2013040905A Current detection device 有权
标题翻译：电流检测装置
公开(公告)号：JP2013040905A
公开(公告)日：2013-02-28
申请号：JP2011179770
申请日：2011-08-19
申请人： Fuji Electric Co Ltd , 富士電機株式会社 , Fuji Electric Fa Components & Systems Co Ltd , 富士電機機器制御株式会社
发明人： KURIHARA SHIN , KUDO TAKAHIRO
IPC分类号： G01R19/00 , H01F38/40
摘要： PROBLEM TO BE SOLVED: To provide a current detection device which is less affected by a peripheral environment condition, is small-sized and low-cost, and is capable of detecting a minute current with low current consumption.SOLUTION: The current detection device includes: an excitation coil 4 wound around a magnetic core 3 surrounding a conductor where a measurement current flows; oscillation means 6 which generates a rectangular wave voltage which inverts a direction of an excitation current supplied to the excitation coil, with the magnetic core in a saturated state or a state close to the saturated state in accordance with a set threshold; current detection means 7 which detects the measurement current on the basis of a duty change of the rectangular wave voltage outputted from the oscillation means 6; frequency detection means 8 which detects a frequency of the rectangular wave voltage outputted from the oscillation means; threshold setting means which sets a threshold of the oscillation means on the basis of the frequency detected by the frequency detection means; and number-of-turns selection means 5 which allows selection of the number of turns of secondary winding for supplying the excitation current, among a plurality of stages to change current detection characteristics.
摘要翻译：要解决的问题：为了提供受周围环境条件影响较小的电流检测装置，其尺寸小且成本低，并且能够以低电流消耗检测微小电流。电流检测装置包括：励磁线圈4，缠绕在围绕测量电流流动的导体的磁芯3上; 振荡装置6，其产生矩形波电压，其使提供给励磁线圈的激励电流的方向与磁芯处于饱和状态或接近于饱和状态的状态相对应的设定阈值; 电流检测装置7，其基于从振荡装置6输出的矩形波电压的占空比变化来检测测量电流; 频率检测装置8，检测从振荡装置输出的矩形波电压的频率; 阈值设定单元，其基于由所述频率检测单元检测出的频率来设定所述振荡单元的阈值; 以及匝数选择装置5，其允许选择用于提供激励电流的次级绕组的匝数，以便改变电流检测特性。版权所有（C）2013，JPO＆INPIT

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