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1. 发明专利

JPH10112246A VACUUM VALVE 失效
公开(公告)号：JPH10112246A
公开(公告)日：1998-04-28
申请号：JP26497496
申请日：1996-10-07
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KAGENAGA YOSHIMASA , WATANABE KENJI , UCHIYAMA YOSHIMI , NIWA YOSHIMITSU , HONMA MITSUTAKA , SOMEI HIROMICHI , SEKI KEISEI , KUSANO TAKASHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To stabilize an arc by the generation of magnetic flux in an axial direction between the magnetic poles by using a magnetic body which does not have the shape of closed loop, so that the end parts thereof act as the magnetic poles, and further making a counter electrode generate the magnetic pole on the end part of the magnetic body. SOLUTION: Current-carrying rods 2 are fixed to a point of a current-carrying rod 1 on a circle, concentric with the current-carrying rod 1, and magnetic bodies 3 are respectively installed near the current-carrying rods 2. When electric current in a predetermined direction, is flowed to the current-carrying rods 2, a generated magnetic flux C is passed inside of the magnetic body 3, thereby both ends 3a, 3a of the magnetic body act as the magnetic poles of the polarities opposite to each other, because the magnetic body 3 is not a closed loop. Here, the current-carrying rods 2 and magnetic bodies 3 of the same shape are installed on a mutually facing electrode, thereby the different magnetic poles are generated, because the directions of the electric currents flowing in the current-carrying rods 2 are opposite to each other in the electrodes. Thereby the magnetic field in an axial direction is generated between the magnetic poles of the magnetic bodies opposite to each other. That is, the magnetic field in the axial direction can be generated with a simpler structure, in comparison with a vertical magnetic field coil.

2. 发明专利

JPH09306307A VACUUM VALVE 失效
公开(公告)号：JPH09306307A
公开(公告)日：1997-11-28
申请号：JP11901096
申请日：1996-05-14
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , UCHIYAMA YOSHIMI , WATANABE KENJI , KAGENAGA YOSHIMASA , SATO JUNICHI , KANEKO EIJI , HONMA MITSUTAKA , SOMEI HIROMICHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To further improve breaking performance by preventing the concentration of an arc caused by an eddy current flowing to a contact point. SOLUTION: A material in the same plane direction as a contact plane of a contact point 11A on the front end of a coil electrode is changed. On the outermost peripheral side, it is constituted in an annular shape by arc-shaped four contact point pieces 11a1 made of a copper material and arc-shaped four contact point pieces 11b1 made of copper-chrome alloy. Even on the inside of this annular shape, small arc-shaped contact point pieces made of copper- chrome alloy are arranged on the inner peripheral side of the contact point pieces 11a1, and small arc-shaped contact point pieces made of a copper material are arranged on the inner peripheral side of the contact point pieces 11b1. Fan-shaped small contact point pieces are respectively arranged on the further inner peripheral side of these, and loop resistance of an eddy current is increased.

3. 发明专利

JPH0982185A VACUUM VALVE 失效
公开(公告)号：JPH0982185A
公开(公告)日：1997-03-28
申请号：JP23425895
申请日：1995-09-12
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI , WATANABE KENJI , HONMA MITSUTAKA
IPC分类号： C22C5/06 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To maintain an excellent large-current interrupting characteristic by combining composition-gradient contacts whose material compositions on the contact surfaces are changed as specified and a magnetic flux density distribution inclination means for changing the magnetic flux density on the contact surfaces as specified. SOLUTION: Material compositions on the surfaces of a pair of contacts arranged inside a vacuum container in such a way as to freely touch and leave each other undergo gradient changes in concentric circles on a certain radius line. A magnetic flux density distribution inclination means is provided for causing gradient changes of magnetic flux intensity in concentric circles on the radius line on the contact surfaces. The combined effect of the contacts and the means causes an arc produced when a large current is interrupted to be readily moved and diffused over the contact surfaces having the composition gradients, without stopping and concentrating on portions where arc voltages are low; i.e., a critical current value at which an anode spot is formed is increased so that an excellent large-current interrupting characteristic can be maintained.

4. 发明专利

JPH10255604A VACUUM VALVE 失效
公开(公告)号：JPH10255604A
公开(公告)日：1998-09-25
申请号：JP5332797
申请日：1997-03-07
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KAGENAGA NOBUKATA , SOMEI HIROMICHI , OSHIMA IWAO , HONMA MITSUTAKA , SEKI KEISEI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To improve breaking performance by making magnetic fluxes generated between contactors being perpendicular to a contact surface. SOLUTION: This vacuum valve is provided with a pair of freely advancing/ retracting conductive rods 1 inserted inside a vacuum chamber, a plurality of current-carrying pins 2 whose base plate is fayed to the conductive rod 1 annularly arranged in its front, a pair of contactors 5 provided on tips of current-carrying pins 2, magnetic material bodies 3 arranged between the conductive rods 1 and the current-carrying pins 2, coil electrodes respectively arranged, as required, at the back of the above mentioned pair contactors to generate a magnetic field in the perpendicular, diagonal, or parallel direction on the above mentioned contact surfaces, an arc shield provided so as to vapor-shield inside the above mentioned insulating chamber, and a bellows cover provided so as to vapor-shield a surface of the above mentioned bellows. A size of a saturation magnetic flux density of the magnetic material bodies 3 are made to be at least 0.5Wb/m for the optional direction of the radius on the contact surfaces of the contactors 5.

5. 发明专利

JPH1173830A VACUUM VALVE 失效
公开(公告)号：JPH1173830A
公开(公告)日：1999-03-16
申请号：JP23569997
申请日：1997-09-01
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , HONMA MITSUTAKA , SEKI KEISEI , YAMAMOTO ATSUSHI , KUSANO TAKASHI , SOMEI HIROMICHI
IPC分类号： B22F3/00 , C22C1/04 , C22C5/06 , C22C9/00 , H01H1/02 , H01H1/023 , H01H1/025
摘要： PROBLEM TO BE SOLVED: To provide a stable vacuum valve that is excellent in contact resistance and cut-off characteristics. SOLUTION: The contact material of a vacuum valve comprises a high conductivity constituent cupper or the like and an arc resistant constituent consisting of Cr, in which particles having a diameter in the range of 1-150 μm occupy at least 90 vol.%, and the ratio of the difference between the thermal expansion coefficient α900 at 900 deg.C, and the thermal expansion coefficient α50 at 50 deg.C, to the thermal expansion coefficient α900 at 900 deg.C of the contact material, [(α900 -α50 )×100/(α900 )] should be not less than 0.8% and not more than 12%. Thereby, the formation of a groove produced in the interface between a Cr particle and a Cu matrix after undergoing a brazing process is suppressed so that the stabilization of the static withstand voltage, contact resistance and cutoff characteristics can be realized.

6. 发明专利

JP2011076951A Vacuum circuit breaker 有权
标题翻译：真空断路器
公开(公告)号：JP2011076951A
公开(公告)日：2011-04-14
申请号：JP2009228917
申请日：2009-09-30
申请人： Toshiba Corp , 株式会社東芝
发明人： SEGI HIROTO , HONMA MITSUTAKA
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum circuit breaker using an insulating shaft of three-phase integrated type, the insulating shaft securing the priority for grounding breakdown. SOLUTION: The vacuum circuit breaker is provided with a vacuum bulb 4 having a pair of contacts 3 in free contact and separation, a turnable insulating shaft 9 to which a movable axle 7 of the vacuum bulb 4 is connected and is arranged in a direction orthogonal to the axis direction of the movable axle 7, and an operating mechanism 14 which is connected to the insulating shaft 9. The insulating shaft 9 is constructed of: a main axle 10 connected to the operating mechanism 14; and projecting parts 13 of an insulator 11 of which three-phase parts are independently arranged in the axial direction of the main axle 10 and which are connected to the movable axle 7. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用三相一体型绝缘轴的真空断路器，绝缘轴确保了接地故障的优先权。解决方案：真空断路器设置有具有自由接触和分离的一对触头3的真空灯泡4，可转动绝缘轴9，真空灯泡4的可动轴7连接到该可转动绝缘轴9上，并且布置在与可动轴7的轴线方向正交的方向，以及与绝缘轴9连接的操作机构14.绝缘轴9由连接到操作机构14的主轴10构成。和三相部分独立地设置在主轴10的轴向并连接到可动轴7上的绝缘体11的突出部分13.（C）2011，JPO＆INPIT

7. 发明专利

JP2009289652A Agwc-ag composite contact, and manufacturing method thereof 审中-公开
标题翻译： AGWC-AG复合接触器及其制造方法
公开(公告)号：JP2009289652A
公开(公告)日：2009-12-10
申请号：JP2008142315
申请日：2008-05-30
申请人： Toshiba Corp , 株式会社東芝
发明人： OKUTOMI ISAO , KUSANO TAKASHI , YAMAMOTO ATSUSHI , SASAGE KOSUKE , HONMA MITSUTAKA , SOMEI HIROMICHI , OSABE KIYOSHI
IPC分类号： H01H33/66 , C22C5/06 , C22C29/08 , H01H1/023 , H01H1/04 , H01H1/06 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To provide an AgWC-Ag composite contact combining low surge property and contact resistance characteristics by improving a demerit of contact resistance characteristics of an Ag-WC contact.
SOLUTION: The AgWC-Ag composite contact has a contact 6 formed of an AgCu alloy containing 25-75 mass% of Ag, 25-75 mass% of WC and an auxiliary component if necessary; a recess 6a provided substantially at the center part of a contact surface of the contact 6; and Ag films 6b, 6c formed by vapor-depositing an Ag component on angular parts A, B at least on the inner periphery of the recess 6a.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过提高Ag-WC触点的接触电阻特性的缺点，提供组合低浪涌特性和接触电阻特性的AgWC-Ag复合触点。解决方案：AgWC-Ag复合触点具有由AgCu合金形成的触点6，AgCu合金含有25-75质量％的Ag，25-75质量％的WC和必要的辅助组分; 设置在接触件6的接触面的大致中央部的凹部6a; 以及至少在凹部6a的内周部，在角部A，B上气相沉积Ag成分而形成的Ag膜6b，6c。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009230910A Jointing method of circuit breaker contact 审中-公开
标题翻译：电路断路器接点接线方法
公开(公告)号：JP2009230910A
公开(公告)日：2009-10-08
申请号：JP2008072109
申请日：2008-03-19
申请人： Shibafu Engineering Corp , Toshiba Corp , 株式会社東芝 , 芝府エンジニアリング株式会社
发明人： OKUTOMI ISAO , KUSANO TAKASHI , YAMAMOTO ATSUSHI , IKEBE TAKAYUKI , HONMA MITSUTAKA
IPC分类号： H01H1/06 , H01H1/00 , H01H1/023
摘要： PROBLEM TO BE SOLVED: To reduce generation of air holes in a jointing face of an Ag oxide contact and a Cu base metal.
SOLUTION: This is a jointing method of a circuit breaker contact to joint an Ag oxide contact 1 to a Cu base metal 2. A coating alloy made of Zn, Cu, and Ag containing at least one of Sn and In is melted and a film 11 is installed on the jointing face of the Ag oxide contact 1, and the jointing faces of the Ag oxide contact having the film 11 installed and the Cu base metal 2 are jointed by melting an Ag brazing filler metal 12 consisting of Cu and Ag containing at least one of Zn, Sn, and In which has lower liquidus-line temperature than the coating alloy.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：减少Ag氧化物接触和Cu母材的接合面中的气孔的产生。解决方案：这是断路器接触的接合方法，以将氧化银接触1接合到Cu基体金属2.由含有Sn和In中的至少一种的Zn，Cu和Ag制成的涂层合金熔化并且在Ag氧化物接触1的接合面上安装有膜11，并且通过熔化由Cu构成的Ag钎料12，将安装有膜11的Ag氧化物接触的接合面与Cu母材2接合和含有Zn，Sn和In中的至少一种的Ag，其具有比涂层合金低的液相线温度。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2007227766A Electromagnetic actuator 审中-公开
标题翻译：电磁致动器
公开(公告)号：JP2007227766A
公开(公告)日：2007-09-06
申请号：JP2006048587
申请日：2006-02-24
申请人： Toshiba Corp , 株式会社東芝
发明人： MATSUMOTO YASUHIRO , TONAMI YOUSUKE , ISHIKAWA YOSHINOBU , KUBOTA NOBUTAKA , NODA TAKASHI , MATSUO KAZUHIRO , KATO KENJI , HONMA MITSUTAKA , WAKABAYASHI KOSEI
IPC分类号： H01F7/16 , H01F7/06
CPC分类号： H01F7/122 , H01F7/1615 , H01F7/1623
摘要： PROBLEM TO BE SOLVED: To improve energy efficiency by varying an energizing method of electromagnetic coil based on a condition of load side. SOLUTION: A mover 2 of the actuator includes a plunger member 21 and a handguard member 22, and is arranged to be reciprocated from a latch location to a latch release location within a stator 1. A first electromagnetic coil 31 has enough electromagnetic force so that the mover 2 stated in a latch release condition can be made to be a latch condition at the time of energizing. A permanent magnet 4 absorbs the handguard member 22 of the mover 2 stated in the latch condition by the electromagnetic force of the first electromagnetic coil 31, and has an absorbing force enough to keep the latch condition at the time of non-energizing of the first electromagnetic coil 31. A second electromagnetic coil 32 reduces a magnetic flux of the permanent magnet 4 at the time of the energizing, and can change the mover 2 from the latch condition to the latch release condition. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过根据负载侧的条件改变电磁线圈的通电方法来提高能量效率。
解决方案：致动器的移动器2包括柱塞构件21和护手构件22，并且被布置成从锁定位置往复运动到定子1内的闩锁释放位置。第一电磁线圈31具有足够的电磁使得在闩锁释放状态下所述的动子2可以在通电时成为闩锁状态。永磁体4通过第一电磁线圈31的电磁力吸收在闩锁状态下所述的动子2的护手构件22，并且具有足够的吸收力，以在第一电磁线圈31的通电时保持闩锁状态电磁线圈31.第二电磁线圈32在通电时减小永磁体4的磁通量，并且可以将动子2从闩锁状态改变为闩锁释放状态。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007179841A Vacuum circuit breaker 有权
标题翻译：真空断路器
公开(公告)号：JP2007179841A
公开(公告)日：2007-07-12
申请号：JP2005376257
申请日：2005-12-27
申请人： Toshiba Corp , 株式会社東芝
发明人： MATSUMOTO YASUHIRO , ISHIKAWA YOSHINOBU , KUBOTA NOBUTAKA , NODA TAKASHI , MATSUO KAZUHIRO , KATO KENJI , HONMA MITSUTAKA , WAKABAYASHI KOSEI
IPC分类号： H01H33/66 , H01H33/38 , H01H33/40 , H01H33/42
摘要： PROBLEM TO BE SOLVED: To improve a switching characteristic of a vacuum circuit breaker using an electromagnetic actuator.
SOLUTION: The vacuum circuit breaker is characterized by comprising: an operation rod 11 held movably in a direction for switching a pair of contacts contactable and separable to/from each other; the armature 14 fixed to the operation rod 11; a permanent magnet 15 for attracting the armature to move it or keep a closed path; a yoke 13 arranged to surround the armature 14 for forming a magnetic path; a closing coil 16 and an opening coil 17 for increasing/decreasing magnetic flux in the yoke 13 for moving the armature 14; an opening spring biased to move the armature in the opening direction; and a latch mechanism 21 for tentatively preventing the movement start of a movable member when the movable member 14 connected to the operation rod 11 is moved from an opening state to a closing state.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提高使用电磁致动器的真空断路器的开关特性。解决方案：真空断路器的特征在于包括：操作杆11，其可移动地保持在用于切换彼此可接触和分离的一对触点的方向上; 电枢14固定在操作杆11上; 用于吸引电枢使其移动或保持封闭路径的永磁体15; 轭13，被布置成围绕用于形成磁路的电枢14; 闭合线圈16和用于增加/减小用于移动电枢14的磁轭13中的磁通量的开启线圈17; 打开弹簧偏压以使电枢沿打开方向移动; 以及用于暂时防止当连接到操作杆11的可动构件14从打开状态移动到关闭状态时可移动构件的移动开始的闩锁机构21。版权所有（C）2007，JPO＆INPIT

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