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1. 发明专利

JP2008218266A Lightning arrester, and ground terminal board with the same 审中-公开
标题翻译：闪电雷达和地面终端板
公开(公告)号：JP2008218266A
公开(公告)日：2008-09-18
申请号：JP2007055514
申请日：2007-03-06
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： MATSUDA JUNICHI
IPC分类号： H01T4/08 , H02B1/16 , H02B1/40 , H02H9/06
摘要： PROBLEM TO BE SOLVED: To provide a lightning arrester capable of lowering a discharge voltage in absorbing lightning surge, and of suppressing generation of a dynamic current; and a ground terminal board with the same.
SOLUTION: The ground terminal board 10 has a class B ground electrode 12b and a class D ground electrode 12d, wherein lightning arresters 20 each having a capacitor 21 and a gap type arrester 22 connected in series to each other are connected between the class B ground electrodes 12b and the class D ground electrodes 12d. By using the gap type arrester 22, the discharge voltage in absorbing lightning surge can be kept low. By connecting the gap type arrester 22 and the capacitor 21 in series to each other, a dynamic current in a commercial power voltage can be restrained.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够降低吸收雷电浪涌中的放电电压并抑制动态电流的产生的避雷器; 和一个接地端子板。解决方案：接地端子板10具有B类接地电极12b和D类接地电极12d，其中各自具有彼此串联连接的电容器21和间隙型避雷器22的避雷器20连接在 B类接地电极12b和D类接地电极12d。通过使用间隙型避雷器22，能够将吸收雷电浪涌的放电电压保持为低。通过将间隙型避雷器22和电容器21串联连接，可以抑制商用电源电压中的动态电流。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005278299A Ground terminal apparatus 审中-公开
标题翻译：接地端子装置
公开(公告)号：JP2005278299A
公开(公告)日：2005-10-06
申请号：JP2004087535
申请日：2004-03-24
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： MATSUDA JUNICHI
IPC分类号： H02B1/16
摘要： PROBLEM TO BE SOLVED: To provide a ground terminal apparatus for dealing with a TN ground system, and arbitrarily controlling and inhibiting a ground-fault current.
SOLUTION: The ground terminal apparatus 1 is provided with a housing 2 having a plurality of first terminals 5 connected to ground wires 6 of a power supply system and devices inserted from ground wire inserting holes 3d of a case 3, a ground conductor 7 provided with a ground terminal 11 connected to a conducting wire 9 inserted from a conducting wire inserting hole 3e of the case 3 and connected to the ground 8 and a plurality of second terminals 10, and impedance elements 12 for respectively and electrically connecting the first and second terminals 5, 10.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于处理TN地面系统的接地终端设备，并且任意地控制和禁止接地故障电流。解决方案：接地端子装置1设置有壳体2，壳体2具有连接到电源系统的接地线6的多个第一端子5和从壳体3的接地线插入孔3d插入的设备，接地导体 7设置有接地端子11，接地端子11连接到从壳体3的导线插入孔3e插入并连接到接地8的导线9和多个第二端子10以及用于分别和电连接第一和第二终端5,10。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004357363A Thunder protection circuit 有权
公开(公告)号：JP2004357363A
公开(公告)日：2004-12-16
申请号：JP2003149458
申请日：2003-05-27
申请人： Matsushita Electric Works Ltd , 松下電工株式会社
发明人： MATSUDA JUNICHI
IPC分类号： H02H9/04
摘要： PROBLEM TO BE SOLVED: To surely protect electronic equipment comprising a commercial power supply line and a signal input/output line from lightening surge, and to improve design margin of the electronic equipment.
SOLUTION: By understanding the fact that a surge voltage is applied to a telephone set or FAX1 based on the potential difference between the ground and communication lines 2A and 2B and power supply lines 3A and 3B, or between the ground and the ground terminal of a telephone set or FAX1 and the power supply line, a surge absorber for protecting the electronic equipment from a lightening surge is provided. In other words, a first surge absorber 11 electrically connects the communication line 2A to the power supply line 3A, a second surge absorber 12 electrically connects the communication line 2B to the power supply line 3B, and a third surge absorber 13 electrically connects the first surge absorber 11 to the second surge absorber 12.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JPH07296708A WIRING BREAKER 失效
公开(公告)号：JPH07296708A
公开(公告)日：1995-11-10
申请号：JP9208594
申请日：1994-04-28
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： MATSUDA JUNICHI , AOYAMA YOICHI
IPC分类号： H02H3/08 , H01H83/00 , H02H3/34 , H02H3/347
摘要： PURPOSE:To detect flow of a high frequency leakage current by detecting a high frequency component in a cable run and outputting it to the outside. CONSTITUTION:A current flowing through a cable run 1 is detected by a current transformer 2, converted to a DC voltage by adding DC offset at a current detecting circuit 10 and inputted to an A/D converting circuit 11 and a DC voltage is divided and converted to a digital value. The square values thereof are integrated by a calculating part 12 for a certain period and an integrated value and a reference value are compared with a each other. When the integrated value exceeds the reference value, presence of some overcurrent is judged, a driving signal is outputted from a pulling out circuit 6 and a contact point 7 is opened/closed. As for detection of a high frequency leakage current, after a leakage current flowing in the cable run 1 is detected by means of a zero phase current converter 4 and converted to a voltage value by means of a resistor 13, the high frequency component of a signal voltage is detected by means of a high-pass filter 15. Then, after this is converted to a digital value by means of an A/D converting circuit 10, the effective value of a high frequency is obtained by means of the calculating part 12 and in response thereto, outputted to the outside from an output device 9.

5. 发明专利

JPH07296705A CIRCUIT BREAKER 失效
公开(公告)号：JPH07296705A
公开(公告)日：1995-11-10
申请号：JP9181294
申请日：1994-04-28
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： MATSUDA JUNICHI
IPC分类号： H02H3/08 , H01H73/00 , H02H3/34 , H02H3/347
摘要： PURPOSE:To provide an electronic type circuit breaker capable of eliminating high frequency noises in a cable run. CONSTITUTION:A circuit breaker is provided with internal wirings 1 laid on the way of a cable run A for connecting a power supply terminal to a load terminal, a current transformer 2 for detecting a current flowing through the cable run, an overcurrent judging means 3 composed of a current detecting circuit 4, an A/D conversion circuit 5 and a calculating unit 6 for receiving an output signal from the current transformer and judging the existence of any over current and a pulling out circuit 7 for receiving an output signal from the overcurrent judging means and pulling out a contact point 8. The internal wirings 1 are provided with a first ring member 9 which is made of a ferrite material and serves as a noise eliminating means for eliminating high frequency noises by making the numbers of respective electric wires of the inner wirings the same and allowing their penetration by one turn, or more.

6. 发明专利

JPH0644887A BREAKER FOR WIRING 失效
公开(公告)号：JPH0644887A
公开(公告)日：1994-02-18
申请号：JP19954192
申请日：1992-07-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： IWAMI EIJI , MATSUDA JUNICHI
IPC分类号： H01H71/04 , H01H83/20 , H02B11/04
摘要： PURPOSE:To allow an external power distribution monitoring panel to acknowledge alteration of the set value for failure sensing or the varying situation of the electric path condition immediately before a breaking motion. CONSTITUTION:A breaker for wiring is composed of a sensor circuit part 5 which senses the electric path condition and generates a trip request signal after a specified time when any failure is sensed, a setting altering means 15 to change the failure sensing set value in the sensor circuit part 5, and a transmission unit 4 to make signal handover with the sensor circuit part 5 and perform transmission of the information with an external power distribution monitoring panel 1. The failure sensing set value is transmitted from the sensor circuit part 5 to the transmission unit 4 when it is to be altered, and the detail of the failure in the electric path condition is transmitted before opening the electric path 6 when failure is sensed. Also the present value of the electric path condition transmitted from the sensor circuit part 5, the failure sensing set value, and detail of the failure are transmitted from the transmission unit 4 to the power distribution monitoring panel 1.

7. 发明专利

JPH0534376A CURRENT DETECTOR 失效
公开(公告)号：JPH0534376A
公开(公告)日：1993-02-09
申请号：JP18994991
申请日：1991-07-30
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OIDO TOSHIHIRO , MATSUDA JUNICHI , OKADA TAKEHIKO
IPC分类号： G01R15/14
摘要： PURPOSE:To prevent disconnection of a secondary side wire of a transformer when the transformer is incorporated into a breaker for wiring by detecting current flowing through an electric circuit accurately free from changes in ambient temperature. CONSTITUTION:A voltage signal generating section 7 comprises a transformer 1 inserted into an electric circuit 2, a resistance 4 and a temperature compensation element 3 connected in series to an output terminal of a secondary winding of the transformer 1 and a voltage detector 5 in which a wire 13 is connected to both ends of the resistance 4 and the temperature compensation element 3 to detect a voltage across both ends thereof. The temperature compensation element 3 which increases in resistance value with a rise in temperature uses a PTC thermistor, a thermosensitive resistor and the like. In addition, the resistance 4 and the temperature compensation element 3 are mounted on an external frame case 12 of the transformer 1, a connection part with the secondary winding is arranged within the external frame case 12 and a resin is run into the external frame case 12. A signal processing section 9 determines a current value flowing through the electric circuit 2 from a voltage value detected with the voltage detector 5.

8. 发明专利

JPH0454324B2 失效
公开(公告)号：JPH0454324B2
公开(公告)日：1992-08-31
申请号：JP31494787
申请日：1987-12-11
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRAO AKIHIKO , AOYAMA YOICHI , MATSUDA JUNICHI , SAWADA TOMOYUKI
IPC分类号： H01H9/44 , H01H9/30 , H01H73/18

9. 发明专利

JPH03245722A CIRCUIT BREAKER 失效
公开(公告)号：JPH03245722A
公开(公告)日：1991-11-01
申请号：JP4338490
申请日：1990-02-23
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： MATSUDA JUNICHI , AOYAMA YOICHI , OKADA TAKEHIKO
IPC分类号： H02H3/08 , H01H33/59 , H02H3/093
摘要： PURPOSE:To generate an alarm signal after occurrence of an overcurrent and a prescribed time before operation of a tripping means and to make it possible to operate a brake circuit by the alarm signal, by executing a tripping operation after a prescribed time since the alarm signal on the overcurrent is generated. CONSTITUTION:A current detecting means 1 detects currents on lines (u), (v) and (w), and when an overcurrent occurs, a determining means 2 generates an output signal. The output signal of the determining means 2 makes a first timer circuit 17 of an alarm signal generating means 3 start the operation. After a prescribed time passes, a relay 24 for alarm operates and an alarm signal is generated. On the occasion, a brake circuit is made to operate by the alarm signal. Simultaneously with the generation of the alarm signal, a timer circuit 25 of a tripping signal output means 5 operates, the tripping means 5 operates with generation of a tripping signal of a signal generating means 26 after a prescribed time passes, and thereby a main contact part 6 is opened. When a short-circuit current flows through the lines (u), (v) and (w), a transistor 36 turns ON and, therefore, the tripping means 5 conducts a tripping operation immediately.

10. 发明专利

JPH03167728A CIRCUIT BREAKER 失效
公开(公告)号：JPH03167728A
公开(公告)日：1991-07-19
申请号：JP30680289
申请日：1989-11-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： MATSUDA JUNICHI , ISHIBASHI MASATERU
IPC分类号： H01H73/18
摘要： PURPOSE:To reduce the dynamic current after commutation by comprising a sub-arcing horn connected to a fixed contact, a sub-arc-extinguishing device provided between the sub-arcing horn and an arc runner and for extinguishing the arc generated in an arc jumping part, and a connecting member for performing connection between multiple electrodes of the arc runner. CONSTITUTION:When the abnormal current flows and generates an arc between a movable contact 4 and a fixed contact 3, the arc travels through an arcing horn 6 and an arc runner 8 to be extinguished by an arc-extinguishing device 9. When the arc moves to the arc runner 8, the current flowing through the arc is commutated to a connecting member 12, but the energy stored in the inductance component included in a load is discharged to ignite an arc in a gap 7 of an arc-jumping part 20. The arc travels through a sub-arcing horn 15 and the arc runner 8 to be extinguished by a sub-arc-extinguishing device. The dynamic current after commutation can be thereby reduced.

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