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11. 发明专利

JP2005210886A Vacuum switchgear system 有权
标题翻译：真空开关系统
公开(公告)号：JP2005210886A
公开(公告)日：2005-08-04
申请号：JP2004365775
申请日：2004-12-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUKAWA SHUICHI , TSUCHIYA KENJI , KAJIWARA SATORU , KOBAYASHI MASAHITO , SAKAMOTO YOSHIKI
IPC分类号： H02B1/30 , H01H33/66 , H02B13/02
摘要： PROBLEM TO BE SOLVED: To realize a miniaturization and cost reduction in a vacuum switchgear system. SOLUTION: The vacuum switchgear system comprises two or more vacuum switchgears which have a vacuum housing for accommodating two or more switches chosen from a disconnector or a load switch, a grounding switch, and a vacuum breaker. The above vacuum switchgears have contact terminals, and the vacuum switchgears constitute different types of vacuum switchgears. The vacuum switchgears are divided into a power receiving side and a power distribution side, and the vacuum switchgears are connected with the elements chosen from an adjoining vacuum switchgear, a lightning arrester and PCT via the insulation joint conductor, which has contact terminals at both ends and can be attached to and detached from the terminals of the vacuum switchgears. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：实现真空开关柜系统的小型化和成本降低。解决方案：真空开关柜系统包括两个或多个真空开关装置，其具有用于容纳从断路器或负载开关，接地开关和真空断路器中选择的两个或更多个开关的真空壳体。上述真空开关装置具有接触端子，真空开关装置构成不同类型的真空开关装置。真空开关柜分为受电侧和配电侧，真空开关柜通过绝缘接头导体与邻接的真空开关柜，避雷器和PCT连接的元件连接，绝缘接头导体在两端具有接触端子并且可以附接到真空开关装置的端子并从其分离。版权所有（C）2005，JPO＆NCIPI

12. 发明专利

JP2005005262A Vacuum switchgear 有权
标题翻译：真空开关
公开(公告)号：JP2005005262A
公开(公告)日：2005-01-06
申请号：JP2004148847
申请日：2004-05-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOBAYASHI MASAHITO , TSUCHIYA KENJI , KAJIWARA SATORU , SUGAI DAISUKE , SOTOZAKI HIRONORI
IPC分类号： H02B13/02 , H01H33/66 , H02B13/075
CPC分类号： H01H2033/6668
摘要： PROBLEM TO BE SOLVED: To provide a vacuum switchgear reducible in size while maintaining a desirable dielectric strength. SOLUTION: The vacuum switchgear has a conductive external vacuum container, a plurality of internal vacuum containers built in the external vacuum container, and electrically insulated from the external vacuum container, a moving electrode being able to connected to an operation mechanism, a ground switch having a fixed electrode for grounding during a maintenance period of the vacuum switchgear, at least one function switch having a function of either as a circuit breaker for shutting off the circuit in case of accident, a disconnector for disconnecting the circuit in terms of voltage, or a load-break switch for switching between load and the circuit, and a plurality of electrode shields for shielding the electrodes of the ground switch and the function switch, and it is characterised in that the ground switch and the function switch are separately built in the internal vacuum containers, and the external vacuum container and the internal vacuum containers are communicated by a through hole provided on the internal vacuum containers. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供可以在保持理想介电强度的同时还可以减小尺寸的真空开关装置。解决方案：真空开关装置具有导电的外部真空容器，内置在外部真空容器内的多个内部真空容器，与外部真空容器电绝缘，能够连接到操作机构的移动电极，接地开关具有在真空开关装置的维护期间接地的固定电极，至少一个功能开关，具有作为用于在事故时关闭电路的断路器的功能，用于断开电路的断路器电压或用于在负载和电路之间切换的负载断路开关，以及用于屏蔽接地开关和功能开关的电极的多个电极屏蔽，其特征在于接地开关和功能开关分别内置真空容器，外部真空容器和内部真空容器通过三通在内部真空容器上设置了休眠孔。版权所有（C）2005，JPO＆NCIPI

13. 发明专利

JP2004048929A Vacuum switchgear 有权
公开(公告)号：JP2004048929A
公开(公告)日：2004-02-12
申请号：JP2002204299
申请日：2002-07-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOBAYASHI MASAHITO , TSUCHIYA KENJI , KAJIWARA SATORU , KIKUGAWA SHUICHI , KIYONO TAKUYA , SAKAMOTO YOSHIKI , SUGAI DAISUKE
IPC分类号： H02B13/02 , H01H33/66 , H01H33/662
CPC分类号： H01H33/66261 , H01H2001/5827 , H01H2033/6668
摘要： PROBLEM TO BE SOLVED: To prevent grounding from occurring following generation of metallic vapor. SOLUTION: This switch gear accommodates disconnectors 58, 60 and a breaker 62 in a vacuum vessel 10; the disconnector 58 is connected to a cable head 50 and the breaker is connected to a cable head 52; an electrode shield 182 is arranged around a movable electrode 176 and a fixed electrode 178 of the disconnectors 58, 60, and insulation shields 184, 186 are arranged around the electrode shield; the shield 184 is attached to a shield 172; the insulation shield 186 is inserted in a shield 188; the insulation shield 184 is connected to the shield 172; the insulation shield 186 is inserted in the shield 188; the spattering of the metallic vapor generated from the movable electrode 176 and the fixed electrode 178, or a movable electrode 170 and a fixed electrode 196 is prevented by the electrode shield 182, the insulation shields 184, 186 and the shield 172, thus preventing the vacuum vessel 10 from grounding due to the generation of the metallic vapor. COPYRIGHT: (C)2004,JPO

14. 发明专利

JP2003123601A VACUUM SWITCH AND ITS INSULATING SPACER 审中-公开
公开(公告)号：JP2003123601A
公开(公告)日：2003-04-25
申请号：JP2001315059
申请日：2001-10-12
申请人： HITACHI LTD
发明人： MISHIRO TAKUYA , TANIMIZU TORU , KOBAYASHI MASAHITO
IPC分类号： B23K1/00 , B23K3/00 , C04B37/02 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum switch and its insulating spacer in which the jointing strength of the insulating spacer is improved and has high reliability by reducing the residual stress at the jointing of the metal member and the insulating material of the insulating spacer of the vacuum breaker and disconnector. SOLUTION: These are a vacuum switch and its insulating spacer in which the residual stress at the jointing of the metal member and the insulating material is reduced by interposing an intermediate material of ring-shape having the cross section and thermal expansion coefficient smaller than the insulating material at the jointing face of the insulating material and metal member that constitute the insulating spacer of the vacuum breaker and the disconnector, and by jointing the metal member having a smaller outside diameter than that of the intermediate material.

15. 发明专利

JP2002373537A Electrode for vacuum circuit breaker and its manufacturing method, vacuum valve, and vacuum circuit breaker 审中-公开
标题翻译：真空断路器电极及其制造方法，真空阀和真空断路器
公开(公告)号：JP2002373537A
公开(公告)日：2002-12-26
申请号：JP2001178343
申请日：2001-06-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI MASAYA , KIKUCHI SHIGERU , BABA NOBORU , KOBAYASHI MASAHITO , GOTO YOSHITOMO , SUZUKI YASUAKI , KOGUCHI YOSHIO
IPC分类号： B22F5/00 , C22C1/04 , C22C5/02 , C22C5/06 , C22C9/00 , H01H1/02 , H01H1/025 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide an electrode for vacuum circuit breakers and its manufacturing method, which has small contraction and small deformation in its sintering process and is excellent in size stability, a vacuum valve, and a vacuum circuit breaker.
SOLUTION: The electrode for a vacuum circuit breaker is characterized by being constituted of a sintered substance, which has fire resisting metal particles and highly conductive metal particles, which has a larger average particle diameter than the average particle diameter of the above fire resisting metal particles. Additionally to the electrode for the vacuum circuit breaker, mixed powder, which is made by mixing the fire resisting metal particles and the highly electricity conductive metal particles, which has the larger average particle diameter than the average particle diameter of the above fire resisting metal particles is pressed and formed, and subsequently, heating sintering is carried out.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于真空断路器的电极及其制造方法，其在烧结过程中收缩小，变形小，尺寸稳定性优异，真空阀和真空断路器。解决方案：用于真空断路器的电极的特征在于由具有耐火金属颗粒和高导电性金属颗粒的烧结物质构成，其具有比上述耐火金属颗粒的平均粒径更大的平均粒径。除了真空断路器用电极以外，通过混合具有比上述耐火金属粒子的平均粒径大的平均粒径的耐火金属粒子和高导电性金属粒子制成的混合粉末被压制并形成，随后进行加热烧结。

16. 发明专利

JPH0917296A ELECTRODE FOR VACUUM VALVE 失效
公开(公告)号：JPH0917296A
公开(公告)日：1997-01-17
申请号：JP9505996
申请日：1996-04-17
申请人： HITACHI LTD
发明人： HAKAMATA YOSHIMI , TANIMIZU TORU , KOBAYASHI MASAHITO , OKABE HITOSHI , GOTO YOSHITOMO , KOMURO KATSUHIRO , WADA AKIRA , SATO TAKASHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To eliminate fear of unable to shutting off of an electrode caused by melting of silver blaze at high temperature generated with a width dimension of a communication part when the arc magnetically drives the communication part by forming a ring-shaped communication part on a corresponding electrode side between adjacent arc traveling surfaces through a plurality of arc grooves. SOLUTION: A vacuum valve electrode has a communication part 14 which stretches over arc grooves 13A-13C between an arc groove outer circumferential side 13E and an arc traveling surface outer circumferential end 5E and integrally communicates arc traveling surfaces 5B-5D, and has resistance values same as those of the arc traveling surfaces 5B-5D in which a path of current flowing from an arc traveling surface 5A on one side arc traveling surface 5B is longer than that on the other side arc traveling surface 5D. A width L is set so that the relation of D2 /D1 of the outer diameter D1 and the inner diameter D2 is more than 0.9 but less than 1. As a result, by adjusting only the width L, breaking current capacity and the dimension and weight of the electrode corresponding to the breaking current capacity are optionally adjusted.

17. 发明专利

JPH07211201A VACUUM VALVE 失效
公开(公告)号：JPH07211201A
公开(公告)日：1995-08-11
申请号：JP493694
申请日：1994-01-21
申请人： HITACHI LTD
发明人： KOBAYASHI MASAHITO , TANIMIZU TORU , HAKAMATA YOSHIMI
IPC分类号： H01H33/66 , H01H33/664
摘要： PURPOSE:To provide a compact vacuum valve having an electrode structure with high contact force and in which electrodes come in contact by fitting to each other. CONSTITUTION:One of a pair of main electrodes has a cylindrical fixed electrode 5 provided with an open part 5D and a contacting part in one end and a plurality of slits 14 tilting at a constant angle to the axis of the cylindrical electrode 5 in its side face. The other of the pair of the main electrodes is so composed as to have a projected part in the center part of the electrode face and a tilting part 6A formed in the outer periphery of the projected part, and the tilting part 6A is joined with a contacting part 5C of the cylindrical electrode 5, which is one of the pair of the main electrodes.

18. 发明专利

JPH0257732B2 失效
公开(公告)号：JPH0257732B2
公开(公告)日：1990-12-05
申请号：JP20807184
申请日：1984-10-05
申请人： HITACHI LTD
发明人： SUEMORI NOBORU , KOBAYASHI MASAHITO
IPC分类号： H03K23/40 , H03K3/037 , H03K23/00 , H03K23/50

19. 发明专利

JPH0294778A PICTURE PROCESSING SYSTEM 失效
公开(公告)号：JPH0294778A
公开(公告)日：1990-04-05
申请号：JP24417888
申请日：1988-09-30
申请人： HITACHI LTD , HITACHI COMMUNICATION SYSTEM
发明人： HATA RYUICHI , NAKAMURA TOSHIAKI , KOBAYASHI MASAHITO
IPC分类号： H04N1/409 , G06T5/20 , H04N1/40
摘要： PURPOSE:To obtain a sufficient corrected picture by employing a circuit in which a modulation transfer function MTF correction filter coefficient optimum to the transmission system with various different signals is set optionally. CONSTITUTION:A deteriorated picture data is inputted to a register A in 3X3 matrix register groups 11-19, an output of the register A is inputted to a buffer memory 1, retarded by one line and the result is outputted to a register D. Then the output of the register D is inputted to a buffer memory 2, retarded by one line and the result is outputted to a register G. Then a high-order bit of a setting port A is inputted to an n1 multiple circuit 4, in which the content of a register E is multiplied by n1. the low-order bit of the port A is inputted to an n2/4 multiple circuit 5, in which the n2 being a fraction of a correction coefficient is set and the content of the register E is multiplied by n2/4. Then an adder 8 calculates alpha(correction coefficient)XE. Thus, finally a subtractor 10 applies the subtraction of alphaXE-beta(correction coefficient)X(B+D+F+H) to attain the MTF correction.

20. 发明专利

JPS6312025A ADDING AND SUBTRACTING DEVICE 失效
公开(公告)号：JPS6312025A
公开(公告)日：1988-01-19
申请号：JP2459087
申请日：1987-02-06
申请人： HITACHI LTD , HITACHI ELECTRONICS
发明人： HAGIWARA YOSHIMUNE , SUGIYAMA SHIZUO , MAEDA SHIGEMICHI , YUMOTO OSAMU , AKAZAWA TAKASHI , KOBAYASHI MASAHITO , KITA YASUHIRO , KIDA YUZO
IPC分类号： G06F7/485 , G06F7/00 , G06F7/50 , G06F7/508 , G06F7/527 , G06F7/76 , G06F17/10
摘要： PURPOSE:To process a digital signal at a real time at a high speed by providing a means to determine the number of the bit necessary to a shifting in accordance with the adding result and the data of the difference of the index displaying part of respective data. CONSTITUTION:An output gamma of a latch circuit 71 is inputted tone side input terminal of a constant adding circuit 77 and a subtracting circuit 78. A zero detecting circuit 79 to decide an output UM of an adder 75, when the output UM of an adder given by a complement displaying is a positive number, counts the continuous number of the '0' bit continuous to the sign bit at the upper-most order of the output UM. When the output UM is a negative number, the continuous number of the '1' bit continuous to the sign bit is counted. An output theta1 of the zero detecting circuit 79 is given through an output correcting circuit 80 provided for the regularization of the data and the overflowing countermeasure to a shifting circuit 76 and the number of the shifting bit of the data by the shifting circuit is determined. Thus, the digital signal can be processed at a high speed.

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