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1. 发明专利

JPH08315695A VACUUM VALVE AND ITS MANUFACTURE 失效
公开(公告)号：JPH08315695A
公开(公告)日：1996-11-29
申请号：JP11543895
申请日：1995-05-15
申请人： TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： NIWA SHOJI , HONMA MITSUTAKA , SOMEI HIROMICHI , ARIMA ITSUO , MANIWA AKIRA , YASUDA TADAHARU
IPC分类号： H01H33/66
摘要： PURPOSE: To improve the reliability on a vacuum valve and stabilize the break performance. CONSTITUTION: This is a vacuum valve where a pair of electrodes 6 and 7 are provided capably of contact and break through a pair of conductive shafts 8 and 9 for electrically connecting with outside within the vacuum container 1 wherein both ends of an insulating tube 2 are sealed with metallic plates 21. A projection 21 a is made within the vacuum container of this metallic plate 21, and a getter 14 containing gas adsorbent is arranged at this projection 21a.

2. 发明专利

JP2002042617A VACUUM VALVE 失效
公开(公告)号：JP2002042617A
公开(公告)日：2002-02-08
申请号：JP2000231862
申请日：2000-07-31
申请人： TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： TOMOMITSU KOICHI , NIWA YOSHIMITSU , YOKOKURA KUNIO , SASAGE KOSUKE , SOMEI HIROMICHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To reduce the size of electrodes and a vacuum valve itself. SOLUTION: In the first electrode 1, a disk-like contact 4 concentric with a cylinder and having a hole in the vicinity of a center thereof is joined with one end of the conductive cylinder, the other end of the cylinder is covered with a bottom part, a conductive shaft 5 is fitted to the other end of the first electrode 1, a slit 3 having a predetermined angle with respect to the axis of the cylinder is provided in the first electrode 1. In the second electrode 2, the angle formed by the axes of the slit 3 and the cylinder is set to be substantially an angle formed between the slit 3 in the first electrode 1 and the axis of the cylinder subtracted from 180 deg., the slit 3 is provided so as to include a tangential line 8 of inner surfaces of the electrodes 1 and 2 or parallel lines 9 substantially parallel to the tangential line 8 of the inner surfaces in which the distance from the tangential line 8 is the slit width in the surface on the contact side of the first electrode 1, no slit is provided in the bottom part inside the first electrode 1, and the slit 3 is provided in the surface on the conductive shaft 5 side.

3. 发明专利

JP2000294086A VACUUM VALVE 失效
公开(公告)号：JP2000294086A
公开(公告)日：2000-10-20
申请号：JP9778299
申请日：1999-04-05
申请人： TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： TOMOMITSU KOICHI , NITTA YOSHIMI , NIWA YOSHIMITSU , HONMA MITSUTAKA , SOMEI HIROMICHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a stable and good cut-off performance with a simple electrode structure, by contactably/separatably facing a fixed electrode to a movable electrode in a vacuum container, and providing a slit only in the lower surface of a bottom flat plate of a cup electrode. SOLUTION: A cup electrode 10 of a vacuum valve is formed in a structure where slits 4 provided in a cylindrical portion 2 and a bottom flat plate 3 for an arc causes a magnetic field to occur orthogonally to the arc, Lorenz force acting to self current flowing on the arc with this magnetic field drives the arc occurring between contacts during current cutoff. At this time, the magnetic field orthogonally to the arc that occurs in facing cup electrodes 10 causes the arc to start rotating on contacts. In this case, because no slit 4 exists in the upper surface 6 of the bottom flat plate of the cup electrode, generated magnetic field is reduced. While, because the slit 4 exists in the lower surface 7 of the bottom flat plate of the cup electrode, the lower surface 7 serves as a part of a coil for generating magnetic field to increase a driving force of the arc.

4. 发明专利

JP2000182485A MANUFACTURE OF VACUUM VALUE 失效
公开(公告)号：JP2000182485A
公开(公告)日：2000-06-30
申请号：JP35856198
申请日：1998-12-17
申请人： TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： MIYATA KIYOTAKA , SOMEI HIROMICHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a valve capable of forming a covering layer, having uniform quality in a connecting part by piling up a brazing material of silver or tin, or containing silver or tin as main component on a conductor connecting surface of an current-carrying shaft, heating at a specified temperature to melt the brazing material, and forming the covering layer of the brazing material on the conductor connecting surface. SOLUTION: A circular brazing material disk 9 of silver or tin, or containing silver or tin as a main component, having the same diameter as that of a fixed side current- carrying shaft 2A is placed on the top of the fixed side current-carrying shaft 2A. The outer diameter of the brazing material disk 9 is the same as that of the fixed side current-carrying shaft 2A, the brazing material disk 9 has a specified thickness, and is made of BAg-8 alloy (72 wt.% Ag and 28 wt.% Cu). In this state, with the temperature raised to a specified value in a heating furnace, a 10-14 μm thick silver covering film is formed in a connecting part 14A of the tip of the fixed side current- carrying shaft 2A. The brazing material of silver or tin, or containing silver or tin as a main component is piled up on the conductor connecting surface of the current- carrying shaft 2A, heated to 700-830 deg.C to cause the brazing material to melt, and the covering film of the brazing material is formed on the conductor connecting surface.

5. 发明专利

JPH11120873A VACUUM VALVE 失效
公开(公告)号：JPH11120873A
公开(公告)日：1999-04-30
申请号：JP27834297
申请日：1997-10-13
申请人： SHIBAFU ENGINEERING KK , TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： OKUTOMI ISAO , MIYATA KIYOTAKA , HONMA MITSUTAKA , SOMEI HIROMICHI , SEKI KEISEI , KUSANO TAKASHI , YAMAMOTO ATSUSHI , WATANABE KENJI , NIWA YOSHIMITSU , KAGENAGA YOSHIMASA , UCHIYAMA TAKUMI , SASAGE KOSUKE
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum valve, capable of reducing local input of heat to a contact, reducing an electrode melting at a zero point of current and of improving the cutting performance. SOLUTION: A first coil electrode 33 made of the conductive material (such as pure copper) and for generating a magnetic field in parallel with an arc and a second coil electrode 34 made of the material, of which resistance value is increased with increase of the electrifying current, and for generating a magnetic field in an opposite direction are provided in rear of an electrode 32 having a contact 31. With increase of the current, intensity of the synthetic magnetic field by these coil electrodes 33, 34 per unit current is increased, and range of a point, in which the minimum arc voltage is detected, is widened in the peripheral area from the center of the electrode. With this structure, arc concentration position can be moved, and the local input of heat to the contact can be lowered.

6. 发明专利

JP2014229473A 真空バルブ审中-公开
标题翻译：真空阀
公开(公告)号：JP2014229473A
公开(公告)日：2014-12-08
申请号：JP2013108034
申请日：2013-05-22
申请人：株式会社東芝 , Toshiba Corp
发明人： SOMEI HIROMICHI , SEKIMORI HIROKI , YOSHIDA TAKESHI
IPC分类号： H01H33/664
摘要：【課題】アークに対して直交するように発生させた磁界の擾乱を抑制し、遮断特性を向上させる。【解決手段】アークに対して直交するような磁界を発生する電極を設けた接離自在の一対の接点5、6と、接点5、6の周りに設けられた筒状のアークシールド9と、アークシールド9の外周に固定されたリング状の磁性体10と、磁性体10の外周に固定された真空絶縁容器1と、を備えたことを特徴とし、発生させた磁界が擾乱することを磁性体10によって抑制する。【選択図】図1
摘要翻译：要解决的问题：通过抑制与正交方向产生的磁场的扰动来提高切断特性。解决方案：真空阀包括：能够与每个接触和分离的一对接触点5和6 其中提供了与电弧正交的产生磁场的电极; 设置在接触点5和6的外周的圆筒状的防弧罩9; 固定在电弧罩9的外周的环状磁性体10; 以及固定在磁性体10的外周的真空绝热容器1，抑制所产生的磁场被磁性物质10扰乱。

7. 发明专利

JP2014120408A Contact material for vacuum valve 有权
标题翻译：真空阀的接触材料
公开(公告)号：JP2014120408A
公开(公告)日：2014-06-30
申请号：JP2012276321
申请日：2012-12-19
申请人： Toshiba Corp , 株式会社東芝
发明人： KUSANO TAKASHI , YAMAMOTO ATSUSHI , SASAKI HARUKA , SOMEI HIROMICHI , SEKIMORI HIROKI
IPC分类号： H01H33/664 , B22F3/10 , B22F7/00 , C22C1/05 , C22C5/06 , C22C29/08 , H01H1/04 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To improve density and bondability of Ag-WC-based alloy to which a sintering additive is added.SOLUTION: There is provided a contact material for a vacuum valve used in a vacuum valve including a pair of points of contact 1 which can be contacted with and be separated from each other. The contacts 1 are connected to a first Ag-WC-based alloy layer 2 which becomes a contact surface and a first Ag-WC-based alloy layer 2, and is formed of a second Ag-WC-based alloy layer 3 adhered to an electrode 4. A sintering additive is added to each of the first Ag-WC-based alloy layer 2 and the second Ag-WC-based alloy layer 3, and an amount of the sintering additive added to the first Ag-WC-based alloy layer 2 is greater than that of the second Ag-WC-based alloy layer 3.
摘要翻译：要解决的问题：提高添加烧结添加剂的Ag-WC基合金的密度和粘合性。解决方案：提供一种用于真空阀的真空阀的接触材料，该真空阀包括一对接触点1 其可以彼此接触并分离。触点1连接到成为接触表面的第一Ag-WC基合金层2和第一Ag-WC基合金层2，并且由附着到第一Ag-WC基合金层3上的第二Ag-WC基合金层3形成。电极4.向第一Ag-WC基合金层2和第二Ag-WC系合金层3中的每一个添加烧结添加剂，并且向第一Ag-WC系合金添加量的烧结助剂层2比第二Ag-WC基合金层3大。

8. 发明专利

JP2013222497A Contact material for vacuum valve 审中-公开
标题翻译：真空阀的接触材料
公开(公告)号：JP2013222497A
公开(公告)日：2013-10-28
申请号：JP2012091238
申请日：2012-04-12
申请人： Toshiba Corp , 株式会社東芝
发明人： KUSANO TAKASHI , YAMAMOTO ATSUSHI , SASAKI HARUKA , SASAGE KOSUKE , YOSHIDA TAKESHI , SOMEI HIROMICHI
IPC分类号： H01H33/664 , C22C1/05 , C22C5/06 , C22C9/00 , C22C29/08 , C22C29/10
摘要： PROBLEM TO BE SOLVED: To accelerate carbonization of an arc-resist component and improve shielding characteristic of low surge type contact material.SOLUTION: A vacuum valve includes detachable paired contacts 5, 6 housed in a vacuum isolation container 1. Regarding contact material for the vacuum valve, the contacts 5, 6 includes: a conductive component; an arc-resist component such as WC; and an auxiliary component if needed. Before mixed with the conductive component, the arc-resist component is heated preliminarily after slight amount of carbon powder is added to base powder purchased by manufacturer, and an amount of non-carbonized arc-resist component is suppressed.
摘要翻译：要解决的问题：加速电弧抗蚀剂成分的碳化，提高低浪涌型接触材料的屏蔽特性。解决方案：真空阀包括可拆卸成对的接头5,6，容纳在真空隔离容器1中。关于接触材料真空阀，触点5,6包括：导电部件; 电弧抗蚀剂组分如WC; 和辅助部件。在与导电成分混合之前，将少量碳粉添加到制造商购买的基础粉末中，预先加热电弧抗蚀剂成分，抑制非碳化电弧抗蚀剂成分的量。

9. 发明专利

JP2013062152A Vacuum valve 有权
标题翻译：真空阀
公开(公告)号：JP2013062152A
公开(公告)日：2013-04-04
申请号：JP2011200031
申请日：2011-09-13
申请人： Toshiba Corp , 株式会社東芝
发明人： NIWA YOSHIMITSU , SASAGE KOSUKE , SOMEI HIROMICHI
IPC分类号： H01H33/664
摘要： PROBLEM TO BE SOLVED: To inhibit the reduction of a contact area and the increase of contact resistance even if a contact surface is melted and solidified to form an irregular part during current interruption.SOLUTION: A vacuum valve has a pair of contacts which contact with or separate from each other. Each contact is composed of: a contact plate 10a capable of contacting with or separating from the other contact; a cup shaped electrode 2a to which an outer peripheral part of the contact plate 10a is fixed; multiple slits 3a each of which is provided on a peripheral surface of the electrode 2a so as to obliquely cross in the axial direction; an annular first reinforcement member 11a provided between an anti-contact surface 10a1 of the contact plate 10 and a bottom surface 2a1 of the electrode 2a; and a second reinforcement member 12a provided at the inner side of the first reinforcement member 11a so as to form a predetermined gap with at least one of the anti-contact surface 10a and the bottom surface 2a1.
摘要翻译：要解决的问题：即使在电流中断期间接触表面熔化并固化形成不规则部分，也可以抑制接触面积的减小和接触电阻的增加。
解决方案：真空阀具有一对接触或彼此分离的触点。每个触点由以下部件组成：能够与另一触点接触或分离的接触板10a; 固定有接触板10a的外周部的杯形电极2a; 多个狭缝3a各自设置在电极2a的周面上，以沿轴向倾斜交叉; 设置在接触板10的抗接触表面10a1和电极2a的底表面2a1之间的环形第一加强件11a; 以及第二加强构件12a，其设置在第一加强构件11a的内侧，以与抗接触表面10a和底表面2a1中的至少一个形成预定的间隙。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2009295436A Vacuum valve 有权
标题翻译：真空阀
公开(公告)号：JP2009295436A
公开(公告)日：2009-12-17
申请号：JP2008148332
申请日：2008-06-05
申请人： Toshiba Corp , 株式会社東芝
发明人： SOMEI HIROMICHI , OSABE KIYOSHI , SASAGE KOSUKE
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a vacuum valve excellent in shutoff characteristics by improving the mechanical strength of a coil electrode which generates a magnetic field.
SOLUTION: The vacuum valve comprises the coil electrode 8 fixed to an end of a current-carrying shaft 9, and a contact 7 connected to the coil electrode 8 in a connectable/disconnectable manner. The coil electrode 8 includes: an arm part 8a extended radially from the end of the current-carrying shaft 9; a coil part 8b formed in a circular arc shape from the tip of the arm part 8a; a tip portion 8c provided at the end of the coil part 8b to perform the connection with the contact 7; and a gap-retaining member 20 provided between the coil part 8b and the contact 7.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过提高产生磁场的线圈电极的机械强度来提供具有优异的截止特性的真空阀。解决方案：真空阀包括固定到载流轴9的端部的线圈电极8和以可连接/可分离的方式连接到线圈电极8的触点7。线圈电极8包括：从载流轴9的端部径向延伸的臂部8a; 从臂部8a的前端形成为圆弧状的线圈部8b; 设置在线圈部8b的端部以与接触件7连接的前端部8c; 以及设置在线圈部分8b和接触件7之间的间隙保持构件20.版权所有（C）2010，JPO＆INPIT

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