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1. 发明申请

US20150380188A1 Gas Circuit Breaker 审中-公开
标题翻译：气体断路器
公开(公告)号：US20150380188A1
公开(公告)日：2015-12-31
申请号：US14765497
申请日：2014-03-05
申请人： HITACHI, LTD.
发明人： Toshiaki SAKUYAMA , Hajime URAI , Noriyuki YAGINUMA
IPC分类号： H01H33/08 , H01H73/18
CPC分类号： H01H33/08 , H01H33/74 , H01H33/78 , H01H73/18 , H01H2205/002
摘要： A gas circuit breaker includes, in a container filled with an arc extinguishing gas: a fixed-side main contact and a movable-side main contact separable from the fixed-side main contact; a fixed arcing contact (12) and a movable arcing contact (11) disposed on inside diameter sides of the fixed-side main contact and the movable-side main contact, respectively, the movable arcing contact (11) being separable from the fixed arcing contact (12); an insulating nozzle (14) that surrounds the fixed arcing contact (12); an arc space to be formed between the fixed arcing contact (12) in the insulating nozzle (14) and the movable arcing contact (11) when the movable arcing contact (11) is separated from the fixed arcing contact (12); a thermal puffer chamber (21) that draws thereinto the arc extinguishing gas whose pressure has been increased by arc heat in the arc space; and an evaporating member (41) disposed in the thermal puffer chamber (21). In the gas circuit breaker, the evaporating member (41) is formed of a nonwoven fabric.
摘要翻译：气体断路器包括在装有灭弧气体的容器中：固定侧主触头和可从固定侧主触头分离的可动侧主触头; 分别设置在固定侧主触点和可动侧主触头的内径侧的固定电弧触点（12）和可动电弧触点（11），可动电弧触点（11）可分离固定电弧联系人（12）; 围绕固定电弧触点（12）的绝缘喷嘴（14）; 当可动电弧触头（11）与固定电弧触点（12）分离时，在绝缘喷嘴（14）中的固定电弧触点（12）和可动电弧触点（11）之间形成的电弧空间; 一个热气冲洗室（21），其吸入在电弧空间中通过电弧加热压力的灭弧气体; 以及设置在所述热吹气室（21）中的蒸发构件（41）。在气体断路器中，蒸发构件（41）由无纺布形成。

2. 发明申请

US20180277323A1 GAS CIRCUIT BREAKER 审中-公开
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
IPC分类号： H01H33/90 , H01H33/70 , H01H33/82 , H01H33/53
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.

3. 发明申请

US20190287746A1 GAS CIRCUIT BREAKER 审中-公开
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.
发明人： Toshiaki SAKUYAMA , Masanao TERADA , Hajime URAI , Yuichiro YAMANE , Takahiro NISHIMURA
IPC分类号： H01H33/70 , H01H33/56 , H01H33/42
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.

4. 发明申请

US20200279705A1 Gas Circuit Breaker 审中-公开
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
IPC分类号： H01H33/91 , H01H33/56
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.

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