-
公开(公告)号：US20180226214A1
公开(公告)日：2018-08-09
申请号：US15855170
申请日：2017-12-27
申请人： Hitachi, Ltd.
发明人： Hideyuki KOTSUJI , Hajime URAI , Masanao TERADA , Makoto HIROSE
CPC分类号： H01H33/88 , H01H33/56 , H01H33/74 , H01H2033/888
摘要： There is provided a gas circuit breaker that includes: a puffer shaft connected to one of a pair of arcing contacts, a puffer cylinder that is coaxially provided on an outer circumference of the puffer shaft, an insulating nozzle that is fixed to the puffer cylinder on a breaker side, an insulating rod that connects the puffer shaft and an operating device to each other, a shaft guide that is provided on an outer circumference of the puffer shaft and the insulating rod, and an exhaust guide that is provided on an outer circumference of the shaft guide, in which hot gas is discharged into a gas tank through a shaft exhaust hole of the puffer shaft, between the puffer shaft and the shaft guide, and a conductor exhaust hole of a movable side exhaust conductor in the middle of interrupting operation, the shaft exhaust hole of the puffer shaft communicates with a shaft guide exhaust hole of the shaft guide in a region near a current zero point before the termination of the interrupting operation, and thus an exhaust flow path changes.
-
公开(公告)号：US20160203927A1
公开(公告)日：2016-07-14
申请号：US14912794
申请日：2014-05-26
申请人： HITACHI, LTD.
发明人： Masanao TERADA , Hajime URAI , Katsuhiko SHIRAISHI , Yoichi OSHITA , Hiroaki HASHIMOTO , Noriyuki YAGINUMA
IPC分类号： H01H33/42
CPC分类号： H01H33/42 , H01H2033/028 , H01H2205/002
摘要： Provided is a gas circuit breaker that can reduce control energy smaller than that in previous double motion systems and an excessive force applied to a moveable pin to achieve a highly reliable double motion system. A gas circuit breaker has a double motion mechanism unit including a driving-side connecting rod, a driven-side connecting rod, a lever to connect the rods, and a guide to define the motion of the driving-side and driven-side connecting rods. A moveable pin extends through a first grooved cam of the driving-side conencting rod, a second grooved cam of the guide, and a third grooved cam of the lever. The driving-side connecting rod operates to move the moveable pin inside the grooved cams. Thus, the lever is rotated, the driven-side connecting rod is driven opposite to the driving-side connecting rod, and the driven-side arcing contact is driven opposite to the driving-side arcing contact.
摘要翻译： 提供了一种气体断路器，其可以减少比先前的双运动系统中的控制能量更小的控制能量，并且施加到可移动销的过大的力以实现高度可靠的双运动系统。 气体断路器具有双运动机构单元，其包括驱动侧连接杆，从动侧连接杆，用于连接杆的杠杆和用于限定驱动侧和从动侧连接杆的运动的引导件 。 可移动销延伸穿过驱动侧连接杆的第一凹槽凸轮，引导件的第二凹槽凸轮和杠杆的第三凹槽凸轮。 驱动侧连杆操作以使可移动销在槽形凸轮内移动。 因此，杠杆旋转，从动侧连接杆与驱动侧连接杆相对驱动，从动侧电弧触点与驱动侧电弧触点相对驱动。
-
公开(公告)号：US20190287746A1
公开(公告)日：2019-09-19
申请号：US16275365
申请日：2019-02-14
申请人： Hitachi, Ltd.
摘要： In order to solve the above-described problems, a gas circuit breaker of the present invention has an insulating nozzle disposed so as to cover an inner surface of a coupling member such that an end surface of the coupling member and an end surface of the insulating nozzle form one surface (the end surface of the coupling member is flush with the end surface of the insulating nozzle), in order to suppress contact between a high-temperature and high-pressure gas generated by an arc and the coupling member coupling the insulating nozzle and a driving rod.
-
公开(公告)号：US20180025868A1
公开(公告)日：2018-01-25
申请号：US15547908
申请日：2016-01-12
申请人： HITACHI, LTD.
发明人： Masanao TERADA , Yuki NAKAI , Yoichi OSHITA , Hiroaki HASHIMOTO , Hajime URAI , Katsuhiko SHIRAISHI
IPC分类号： H01H33/42
CPC分类号： H01H33/42 , H01H3/42 , H01H3/46 , H01H2033/028
摘要： A bidirectional driving mechanism 10 has a drive-side linkage rod 11, a driven-side linkage rod 13, two levers 12 that link the drive-side linkage rod with the driven-side linkage rod, and a guide 14 that regulates the operation of the drive-side linkage rod 11 and the driven-side linkage rod 13. A moveable pin 18 is passed through a first groove cam 16 of the drive-side linkage rod 11, a second groove cam 17 of the guide 14, and third groove cams 19 of the levers 12, and by operation of the drive-side rod 13, the moveable pin 18 moves within the respective groove cams 16, 17, 19, causing the levers 12 to rotate, the driven-side linkage rod 13 to be driven in a direction opposite to the drive-side linkage rod 11, and a driven-side arc electrode 5 to be driven in a direction opposite to a drive-side arc electrode 4.
-
公开(公告)号：US20170250039A1
公开(公告)日：2017-08-31
申请号：US15428364
申请日：2017-02-09
申请人： Hitachi, Ltd.
发明人： Masanao TERADA , Hiroaki HASHIMOTO , Riichi NAGAO , Yu HASEGAWA , Takashi IIDA
CPC分类号： H01H33/42 , H01H33/565 , H01H33/88 , H01H2033/028
摘要： To provide a gas circuit breaker having a space-saving reliable double motion mechanism having a high degree of freedom in design. A double motion mechanism section of the gas circuit breaker is formed of a drive-side connecting rod, a driven-side connecting rod, levers connecting them and a guide regulating operations of the drive-side connecting rod and the driven-side connecting rod. A movable pin is connected to a first grooved cam formed in the drive-side connecting rod, a second grooved cam formed in the guide and third grooved cams formed in the levers respectively, and posture holding members are provided in the movable pin. The movable pin moves in the respective grooved cams by an operation of the drive-side connecting rod, thereby rotating the levers, driving the driven-side connecting rod in an opposite direction of the drive-side connecting rod, and driving the driven-side arcing contact in an opposite direction of the driven-side arcing contact.
-
公开(公告)号：US20200279705A1
公开(公告)日：2020-09-03
申请号：US16645667
申请日：2018-07-30
申请人： Hitachi, Ltd.
发明人： Toshiaki SAKUYAMA , Hajime URAI , Masanao TERADA , Ryoichi SHIOBARA , Takahiro NISHIMURA , Makoto HIROSE , Yuichiro YAMANE
摘要： While lowering sliding resistance of an exhaust cylinder and reducing effects on a circuit breaking operation, an amount of high temperature and high pressure gas discharged into an insulating support cylinder is reduced, and both ground insulation performance and circuit breaking performance are improved. To solve the above problem, a gas circuit breaker of the present invention is characterized by including a gas suppressing means composed of a protruded portion which is formed on a horizontal surface facing an exhaust cylinder of a shaft guide and which forms a gap between itself and the exhaust cylinder and an enlarged portion which is adjacent to the protruded portion and where a gap to the exhaust cylinder is enlarged so that the shaft guide, which operates along an inner circumferential surface of the exhaust cylinder, which is provided to an inner circumferential portion of a movable side main conductor and is provided to outer circumferences of an exhaust shaft and an operation rod, and couples the operation rod with the exhaust shaft, is axially adjacent to a sliding member that slides along the exhaust cylinder with no space to the exhaust cylinder and suppresses discharge of heated and pressurized insulating gas.
-
公开(公告)号：US20170345593A1
公开(公告)日：2017-11-30
申请号：US15608041
申请日：2017-05-30
申请人： HITACHI, LTD.
发明人： Yuki NAKAI , Masanao TERADA , Hajime URAI , Takashi IIDA , Noriyuki YAGINUMA
IPC分类号： H01H33/91 , H02B13/045 , H02B13/025 , H01H71/32 , H01H33/42 , H01H33/08 , H01H71/10 , H01H71/02 , H01H33/78 , H01H33/74 , H02B13/055 , H01H73/18
CPC分类号： H01H33/91 , H01H33/08 , H01H33/42 , H01H33/74 , H01H33/78 , H01H71/025 , H01H71/10 , H01H71/326 , H01H73/18 , H01H2221/088 , H02B13/025 , H02B13/045 , H02B13/055
摘要： A gas circuit breaker includes a sealed tank, a movable side main electrode and a fixed side main electrode in the sealed tank facing each other, a movable side arc electrode and a fixed side arc electrode in the sealed tank facing each other, a cylinder at a circumference of the movable side arc electrode, a piston in the cylinder in a slidable manner and forming a puffer chamber together with the cylinder, an insulation nozzle in the sealed tank, an exhaust pipe at a circumference of the fixed side arc electrode and exhausting heat gas, which is sprayed on an arc generated in the insulation nozzle in the opening electrode operation, to an outside, and a closing plate in the exhaust pipe. One or more vent holes leading the heat gas from an inside of the exhaust pipe to the outside is on a surface of the closing plate.
-
公开(公告)号：US20170062157A1
公开(公告)日：2017-03-02
申请号：US15242944
申请日：2016-08-22
申请人： Hitachi, Ltd.
CPC分类号： H01H33/42 , H01H33/91 , H01H2033/028 , H01H2221/088
摘要： A gas circuit breaker includes a driving side electrode having a driving side main contact and a driving side arc contact, and a driven side electrode having a driven side main contact and a driven side arc contact in a sealed tank. The driving side electrode is connected to an operation device. The driven side electrode is coupled to a bidirectional driving mechanism unit. A sliding guide, on which the driven side main contact slides, is provided on an inner periphery side of the driven side main contact. The driven side main contact is energized by a coil spring in a direction of the sliding guide and has two contact surfaces. Only during normal conduction, one of the contact surfaces contacts a projected portion of the sliding guide and the other of the contact surfaces contacts the driving side main contact.
摘要翻译： 气体断路器包括具有驱动侧主触头和驱动侧电弧触点的驱动侧电极和在密封箱中具有从动侧主触头和从动侧电弧接触的从动侧电极。 驱动侧电极连接到操作装置。 从动侧电极耦合到双向驱动机构单元。 从动侧主触头滑动的滑动导向件设置在从动侧主触头的内周侧。 从动侧主触头由螺旋弹簧沿滑动导向件的方向通电，并且具有两个接触表面。 仅在正常导通期间，其中一个接触表面接触滑动导向件的突出部分，另一个接触表面接触驱动侧主触点。
-
公开(公告)号：US20210082644A1
公开(公告)日：2021-03-18
申请号：US16943076
申请日：2020-07-30
申请人： Hitachi, Ltd.
摘要： A movable main contact; a movable arc contact; a puffer cylinder including the movable main contact; a hollow rod that is arranged inside the puffer cylinder, includes the movable arc contact, and has an inner space through which an insulating gas flows; a thermal puffer chamber surrounded by the puffer cylinder and the hollow rod; an insulating cover that is provided to the hollow rod, and covers the movable arc contact; an insulating nozzle provided to the puffer cylinder; and a cylindrical flow guide extending in the axial direction are included. The flow guide is installed in the thermal puffer chamber, positioned on the outer circumference side of the hollow rod, and connected to the insulating nozzle. The space between the flow guide and the hollow rod is connected to the space between the insulating nozzle and the insulating cover, and serves as a flow path of the insulating gas.
-
公开(公告)号：US20180277323A1
公开(公告)日：2018-09-27
申请号：US15900822
申请日：2018-02-21
申请人： Hitachi, Ltd.
发明人： Toshiaki SAKUYAMA , Ryoichi SHIOBARA , Hajime URAI , Makoto HIROSE , Masanao TERADA , Takahiro NISHIMURA
CPC分类号： H01H33/901 , H01H33/53 , H01H33/7084 , H01H33/82 , H01H2033/902 , H01H2033/906 , H01H2033/908 , H01H2071/147
摘要： To provide a gas circuit breaker designed to achieve further improvement in interruption performance for a small to medium current. The gas circuit breaker according to the present invention includes: an operation mechanism 1; a heat puffer chamber 19; a machine puffer chamber 32; a release valve 34; a movable main contact 5 and movable arc contact 11; a stationary main contact 6 and stationary arc contact 12; a movable-side leading conductor 14; and a stationary-side leading conductor 15, and features: a separation cylinder 21 for radially partitioning the heat puffer chamber 19; an inner circumferential flow path 24 formed on an inner circumferential side of the separation cylinder 21; and a check valve 22 for opening or closing a communication hole 23.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.013 秒)
