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

JP2008204631A Electronic breaker 有权
标题翻译：电子断路器
公开(公告)号：JP2008204631A
公开(公告)日：2008-09-04
申请号：JP2007035900
申请日：2007-02-16
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： YOSHIKAWA KEISUKE , SAWADA TOMOYUKI , KANDA MASATAKA , HIGASHIHAMA HIROTADA , IWAMI EIJI
IPC分类号： H01H73/12 , H01H73/02 , H01H83/02 , H02H3/04
摘要： PROBLEM TO BE SOLVED: To display current-carrying information at current-carrying normal time, at current-carrying abnormal time, and at the time of power supply off by one display tool in an easy-to-understand way, and downsize it in an electronic breaker. SOLUTION: The electronic breaker 1 is equipped with a current detecting part 41 to detect current, voltage, and electric leakage or the like, an abnormality determination part 5 to determine current-carrying abnormality based on a detected signal by the current detecting part 41, a tripping unit 6 to cut off power receiving by a tripping signal from the abnormality determination part 5, and an indication unit 7 to carry out display of current-carrying situation and abnormality display based on the signal from the abnormality determination part 5. The indication unit 7 displays a cause of abnormality at the time of current-carrying abnormality, displays current-carrying information of an electric current value or the like at the time of current-carrying abnormality, and when power supply is off, displays information different from that at the current-carrying abnormal time and at the current-carrying normal time. The current-carrying situation is easy to understand since it is displayed in one indication unit 7. Moreover, since it is one indication unit 7, the electronic form breaker 1 can be downsized. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在载流正常时，电流异常时以及一个显示工具以易于理解的方式断电时显示载流信息，以及在电子断路器中缩小尺寸。解决方案：电子断路器1配备有检测电流，电压和漏电等的电流检测部41，用于通过电流检测来检测基于检测信号的载流异常的异常判定部5 部分41是通过来自异常判定部5的跳闸信号来切断接收电力的跳闸部6，以及基于来自异常判定部5的信号进行通电情况和异常显示的显示的指示部7 指示单元7在通电异常时显示异常的原因，在通电异常时显示电流值等的载流信息，当电源关闭时，显示信息不同于载流异常时间和载流正常时间。由于显示在一个指示单元7中，所以携带状况容易理解。此外，由于是一个指示单元7，所以电子形式断路器1能够小型化。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2007174096A Wireless wiring fixture 有权
标题翻译：无线布线
公开(公告)号：JP2007174096A
公开(公告)日：2007-07-05
申请号：JP2005366817
申请日：2005-12-20
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： KAJIYAMA TOMOHITO , HIGASHIHAMA HIROTADA , KITAMURA TSUNEHIRO , GOTO KIYOSHI , OKADA KENJI
IPC分类号： H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide a wireless wiring fixture that can be connected to a series circuit of a power supply and a load by two wires, and can turn on/off a switching element by a wireless signal using low power consumption.
SOLUTION: A load open/close section 11 has a pair of connection terminals X1, X2 for connecting the series circuit of the power supply AC and the load Ld, and the switching element inserted between the connection terminals X1, X2. A control circuit 10 controls the turning on/off of the switching element, according to the content of the wireless signal received by a wireless receiving section 13. A power supply circuit 12 uses power supplied from the connection terminal to supply power, to the control circuit 10 and the wireless reception 13. When a push button switch Sa is depressed in a transmitter 2, the wireless signal having the same content is transmitted repeatedly for a prescribed number of times. The wireless reception 13 alternately repeats reception standby period during which power is supplied from the power supply circuit 12, and a pause period during which the supply of the power is stopped.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供可以通过两条线连接到电源和负载的串联电路的无线布线夹具，并且可以通过使用低功耗的无线信号来打开/关闭开关元件。解决方案：负载打开/关闭部分11具有用于连接电源AC的串联电路和负载Ld的一对连接端子X1，X2以及插入在连接端子X1，X2之间的开关元件。控制电路10根据由无线接收部分13接收的无线信号的内容来控制开关元件的接通/断开。电源电路12使用从连接端子提供的电力向控制器供电电路10和无线接收13.当在发送机2中按下按钮开关Sa时，具有相同内容的无线信号被重复发送规定次数。无线接收13交替地重复从电源电路12供给电力的接收待机期间和停止供电的暂停期间。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2004343972A Electric leakage detection device 有权
公开(公告)号：JP2004343972A
公开(公告)日：2004-12-02
申请号：JP2003140992
申请日：2003-05-19
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： HIGASHIHAMA HIROTADA , USUI HISAMI , SOSHIN KOJI , SAITO TOSHIAKI , MINAMI HIROTSUGU
IPC分类号： G01R31/02 , H02H3/16 , H02M3/28 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To improve withstand voltage and safety at the output side of a DC-DC conversion circuit. SOLUTION: The electric leakage detection device 20 comprises two voltage-dividing resistors R1, R2 connected in series between input terminals of a DC-AC conversion circuit; a detection resistor Rs connected to a contact point of the voltage dividing resistors R1, R2 at one end; a capacitor C0 inserted in between the other end of the detection resistor Rs and a ground; a first determination part 22 for determining the occurrence of leakage by signal-processing of a detection signal Vs. Insertion of the capacitor C0 in between the detection resistor Rs and the ground isolates the output side of the DC-DC conversion circuit from the ground in DC manner. Therefore since the withstand voltage on the output side of the DC-DC conversion circuit is improved, and high voltage on the secondary side of an isolation transformer will not be applied to the primary side, even if dielectric breakdown occurs in an isolation transformer, and safety is improved also. COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004212376A Leakage detecting device 审中-公开
公开(公告)号：JP2004212376A
公开(公告)日：2004-07-29
申请号：JP2003140991
申请日：2003-05-19
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： HIGASHIHAMA HIROTADA , USUI HISAMI , SOSHIN KOJI , SAITO TOSHIAKI , MINAMI HIROTSUGU
IPC分类号： G01R31/02 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To make it possible to detect not only the presence or absence of an leakage but also the place where the leakage has occurred. SOLUTION: The leakage detecting device 20 comprises two voltage dividing resistors R1, R2 which have the same resistance and are connected in series to each other between output terminals of a rectifier circuit, a detection resistor Rs inserted between a contact point of the voltage dividing resistors R1, R2 and a ground, and first to third determination parts 22 to 24 which determine leakage occurrence at different places by signal-processing of a detection signal Vs. In this manner, the leakage detecting device 20 comprises the first to third determination parts 22 to 24, and can thus detect not only the presence or absence of leakage occurrence but also the place where the leakage has occurred based on the determination results of the determination parts 22 to 24, respectively. COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2001016784A PROTECTIVE DEVICE FOR SYSTEM INTERCONNECTING SYSTEM 失效
公开(公告)号：JP2001016784A
公开(公告)日：2001-01-19
申请号：JP18089499
申请日：1999-06-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OKAMOTO SHINICHIRO , KUNIMOTO YOICHI , KOSHIN HIROAKI , HIGASHIHAMA HIROTADA , USUI HISAMI , YOSHITAKE AKIRA , MUKAI CHUKICHI
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To obtain a protective device for a system interconnecting system which can accurately discriminate detection of isolated operation and DC current from each other. SOLUTION: Commercial power supply 1 and distributed power source 2 are connected to each other via a relay 5. The voltage at the interconnecting point of the power supply 1 and distributed power source 2 is detected by means of a voltage detector 6, and the output current of the power source 2 is detected by means of a current detector 7. A protective device 4 stops the output from the power source 2, and at the same time, the relay 5, when a DC current detecting section 42 detects a DC current based on the output of the current detector 7. Thereafter, the device 4 discriminates the presence of a system fault, based on the output from the voltage detector 6, and when the device 4 recognizes the presence of a system fault, it discriminates it is an isolated operation separately from an isolated operation detecting section 41.

6. 发明专利

JP2000340825A SOLAR GENERATOR 失效
公开(公告)号：JP2000340825A
公开(公告)日：2000-12-08
申请号：JP14711499
申请日：1999-05-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KOSHIN HIROAKI , HIGASHIHAMA HIROTADA , USUI HISAMI , YOSHITAKE AKIRA , OKAMOTO SHINICHIRO , MUKAI CHUKICHI
IPC分类号： H01L31/042 , H02J7/35
摘要： PROBLEM TO BE SOLVED: To obtain a solar generator which can be used as a self-illuminated advertisement, signpost, etc., by a method, wherein bypass diodes arranged in parallel with respective solar cells are replaced with light emitting diodes and a lighting circuit which applies currents to the light emitting diodes when there is no sunlight such as at a nighttime. SOLUTION: A solar cell group comprise a series circuit composed of a plurality of solar cells connected in series with each other, a 1st diode connected in series with the series circuit in the direction of taking out a current generated by the soar cells and 2nd diodes connected in parallel to the respective solar cells in directions giving reverse-bias voltages to the voltages generated by the respective solar cells. A solar generator comprises a plurality of the solar cell groups connected in parallel with each other. The 2nd diodes are replaced with light emitting diodes, and a diode lighting circuit 4 which applies currents to the light emitting diodes 2 is provided.

7. 发明专利

JP2000023371A POWER CONVERTER 失效
公开(公告)号：JP2000023371A
公开(公告)日：2000-01-21
申请号：JP18510598
申请日：1998-06-30
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： GOTO KIYOSHI , KUNIMOTO YOICHI , KOSHIN HIROAKI , MUKAI CHUKICHI , HIGASHIHAMA HIROTADA , YUASA HIROAKI
IPC分类号： H02H3/33 , H02J3/38 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To make applicable to a power system linkage system and improve the detection capability for a ground at the DC side and prevent erroneous detection of a ground at an AC side. SOLUTION: This equipment is provided with a step-up circuit 5 for stepping up the output of a solar battery 1, an inverter circuit 6, which being constituted of bridge-connected switching elements 61-64, converts the output voltage of the step-up circuit 5 into an AC voltage, a filter circuit 7 for smoothing the output of the inverter circuit 6, a parallel-off device 8 for conducting linkage/ parallel-off of a power converter 2A to a commercial system 3 according to the control of a control circuit 10, a ground detection circuit 9A constituted of a core 91 for detecting a DC current inserted with a line between the inverter circuit 6 and the filter circuit 7 and a decision circuit 92 for deciding the existence of an abnormality based on the detection result of the core 91, and a control circuit 10 which stops the control over the step-up circuit 5 and the inverter circuit 6 and controls the parallel-off device 8 for conducting a parallel- off operation, when the decision circuit 92 determines that there is an abnormality.

8. 发明专利

JP2000014014A INVERTER DEVICE 失效
公开(公告)号：JP2000014014A
公开(公告)日：2000-01-14
申请号：JP18216898
申请日：1998-06-29
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： YUASA HIROAKI , KUNIMOTO YOICHI , KOSHIN HIROAKI , MUKAI CHUKICHI , HIGASHIHAMA HIROTADA
IPC分类号： H02J3/38 , H02M7/48 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To provide an inverter device which enables the accurate dead-time compensation without being influenced by noises. SOLUTION: An inverter device converts the output power of a DC power supply 1 into an AC power through a PWM-controlled inverter bridge 2, synchronizes the AC power with the AC power of a commercial power system 5 and supplies the AC power to a load L linking with the commercial power system. To the inverter system, a dead-time generating unit 37 which adds a dead-time to a PWM waveform to generate a control signal and outputs the control signal to the inverter bridge 2, a PWM waveform generating unit 36 which compensates the dead-time, a power value calculation unit 31 which calculates a maximum power which can be taken out from the DC power supply 1, a phase detector 33 which detects the phase of the output voltage of the commercial power system 5 and a command current value calculation unit 34 which calculates a command current value in accordance with the amplitude of an output current and the output of the phase detector 33 at the time of the input of the maximum power are added. If the command current value is out of a non-compensation range, the PWM waveform generating unit 36 compensates the dead-time.

9. 发明专利

JPH11136864A SYSTEM LINKAGE INVERTER DEVICE 失效
公开(公告)号：JPH11136864A
公开(公告)日：1999-05-21
申请号：JP29602697
申请日：1997-10-28
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KOSHIN HIROAKI , HIGASHIHAMA HIROTADA , YUASA HIROAKI , ONO HIROYUKI , USUI HISAMI
IPC分类号： H02J3/38 , H02M1/10 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To prolong the operation life of a switching means and suppress an unnecessary voltage drop. SOLUTION: A system linkage inverter device has an inverter main circuit 2 by which a DC power supply 1 is linked with a commercial power system 5 and an inverter control circuit 3. A switching means (RY1 and RY2 ) which is opened and closed by the inverter control circuit 3 is provided between the inverter main circuit 2 and the commercial power system. The inverter main circuit 2 is composed of a switching device 21 which is so controlled by the inverter control circuit 3 as to practice pulse width modulation to convert a DC power into a commercial power, and an output filter 24 which includes reactors 22 and capacitors 23 by which components other than a commercial frequency components in the output which is modulated in pulse-width by the switching device are attenuated. Further, a current suppressing means 6 is inserted into a part of a connection route including the capacitors in the output filter 24, the switching means and the commercial power system.

10. 发明专利

JPH1169633A SOLAR POWER GENERATION SYSTEM 失效
公开(公告)号：JPH1169633A
公开(公告)日：1999-03-09
申请号：JP21885997
申请日：1997-08-13
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KUNIMOTO YOICHI , KOSHIN HIROAKI , MUKAI CHUKICHI , HIGASHIHAMA HIROTADA , YUASA HIROAKI , ONO HIROYUKI , IWAMI EIJI , USUI HISAMI , OKAMOTO SHINICHIRO
IPC分类号： H02J3/38 , G05F1/67 , H02N6/00
摘要： PROBLEM TO BE SOLVED: To provide a solar power generation system which can supply electric power to a common branch circuit, even during a maintenance operation of a power converter. SOLUTION: In a system, a system interconnection operation is performed between a power converter 23, which converts a direct current to be output from a solar cell 20 into an alternating current and a commercial power supply AC. When a system-interconnection protective device 25 detects an abnormality or the power failure of the commercial power supply AC, it drives parallel-off switches 22a, 22b so as to perform a system splitting operation. A linkage breaker 21 is installed across the power converter 23 and the parallel-off switch 22b, and a common branch circuit Lc is connected, via a common branch breaker 24, to an electric circuit across the linkage breaker 21 and the parallel- off switch 22b.

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