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1. 发明授权

US11942289B2 Vacuum interrupter and vacuum breaker 有权
公开(公告)号：US11942289B2
公开(公告)日：2024-03-26
申请号：US18011006
申请日：2021-06-04
申请人： MEIDENSHA CORPORATION
发明人： Yasuo Karasawa
IPC分类号： H01H33/56 , H01H33/662 , H01H33/666
CPC分类号： H01H33/66207 , H01H33/56 , H01H33/66238 , H01H33/666 , H01H2033/66223
摘要： In a vacuum container (1) of a vacuum interrupter (1A), an insulating cylindrical body (10) is sealed with a fixed-side flange (11a) on the fixed side in the axial direction, and is sealed with a movable-side flange (11b) on the movable side in the axial direction. In the fixed-side flange (11a) and the movable-side flange (11b), annular expansion portions (5a, 5b) are formed between middle portions (3a, 3b) and outer peripheral edge portions (4a, 4b), respectively. The annular expansion portions (5a, 5b) are respectively formed in annular shapes extending along the outer peripheries of the middle portions (3a, 3b), and in shapes expanding in the axial outer side direction of the vacuum container (1), such that an arch structural effect can be obtained.

2. 发明授权

US11875957B2 High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas 有权
公开(公告)号：US11875957B2
公开(公告)日：2024-01-16
申请号：US17750544
申请日：2022-05-23
申请人： Southern States, LLC
发明人： Brian Berner , Joseph R Rostron , Brian Roberts
IPC分类号： H01H33/42 , H01H33/56 , H01H33/82
CPC分类号： H01H33/82 , H01H33/42 , H01H33/565
摘要： A high voltage electric switch includes contacts with graphite carbon electrode forming the arc gap. In addition, the carbon contacts are located in a chamber containing at least 60% carbon dioxide (CO2) as a dielectric gas to achieve improved arc interrupting performance. In conventional switches, the metallic contacts introduce metallic vapors into the arc plasma that inhibits the ability of the dielectric gas to interrupt high voltage, high current arcs. As the element carbon is inherently present in CO2 gas, the addition of vapors from the carbon electrodes into the dielectric gas does not significantly interfere with the dielectric arc-interrupting performance of the CO2 dielectric gas.

3. 发明申请

US20230118886A1 ELECTRICAL SWITCHING ARRANGEMENT 有权
公开(公告)号：US20230118886A1
公开(公告)日：2023-04-20
申请号：US17910887
申请日：2021-02-11
申请人： Siemens Energy Global GmbH & Co. KG
发明人： Roland Monka
IPC分类号： H01H33/91 , H01H33/56
摘要： A switching arrangement has a plurality of at least two contact arrangements and a blasting arrangement for blasting the contact arrangements with insulation gas. The at least two contact arrangements each have a first contact piece and a second contact piece which can be moved relative to one another in order to form an electrical connection when the first contact piece and the second contact piece are in contact and to form an insulation zone when the contact pieces are isolated from one another. The blasting arrangement has at least two blowing volumes, wherein a first contact arrangement can be supplied with insulation gas by a first blowing volume and wherein a second contact arrangement can be supplied with insulation gas by a second blowing volume.

4. 发明授权

US11551827B2 Perfluorinated 1-alkoxypropenes in dielectric fluids and electrical devices 有权
公开(公告)号：US11551827B2
公开(公告)日：2023-01-10
申请号：US15733209
申请日：2018-12-12
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： Sean M. Smith , Michael G. Costello , Klaus Hintzer , Markus E. Hirschberg , William M. Lamanna , John G. Owens
IPC分类号： C07C43/17 , C07C21/18 , H01B3/24 , H01H33/56
摘要： A dielectric fluid (i.e., dielectric composition) that includes a perfluorinated 1-alkoxypropene compound represented by the following general Formula (I): RfO—CF═CFCF3 wherein Rf is CF3— or CF3CF2—. Such dielectric fluids may be useful in various electrical devices.

5. 发明申请

US20220319785A1 GAS CIRCUIT BREAKER 有权
公开(公告)号：US20220319785A1
公开(公告)日：2022-10-06
申请号：US17310214
申请日：2019-04-02
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Takanori IIJIMA , Amane MAJIMA , Toshiyuki UCHII , Akira SHIMAMURA , Norimitsu KATO
IPC分类号： H01H33/56 , H01H33/57
摘要： There is a gas circuit breaker that can reduce deterioration in insulation performance and current breaking performance due to unnecessary gas generated from arc-extinguishing gas sprayed to an arc. The gas circuit breaker includes a sealed container 8 in which the arc-extinguishing gas is enclosed, a first fixed contactor portion 2 fixed to the sealed container 8, a second fixed contactor portion 4 fixed to the sealed container 8, and a movable contactor portion 3 which moves between the first fixed contactor portion 2 and the second fixed contactor portion 4, to conduct and break current between the first fixed contactor portion 2 and the second fixed contactor portion 4, in which an arc generated between a fixed arc contactor 21 provided to the first fixed contactor portion 2 and a movable arc contactor 31 provided to the movable contactor portion 3 at a time of current breaking action is extinguished by spraying the arc-extinguishing gas, the gas circuit breaker includes a gas chamber 5 configured to accumulate the unnecessary gas generated from the arc-extinguishing gas sprayed to the arc, the sealed container 8 is formed by joining ends of the two hollow truncated cone portions 82 and 83, each having a large opening diameter, with the cylindrical portion 82 therebetween, and the gas chamber 5 is formed inside the cylindrical portion 81 forming the sealed container 8.

6. 发明授权

US11264192B2 Circuit interrupter 有权
公开(公告)号：US11264192B2
公开(公告)日：2022-03-01
申请号：US17040398
申请日：2019-03-19
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： Yoshihisa Fukuda , Shinya Kimoto , Kenji Kanematsu , Kazuhisa Kinoshita , Masato Nakamura
IPC分类号： H01H33/02 , H01H33/28 , H01H33/56 , H01H33/70 , H01H33/78
摘要： A circuit interrupter includes a fixed terminal, a movable contactor, a moving mechanism, a squib, and accommodation. The fixed terminal includes a fixed contact. The movable contactor includes a movable contact connected to the fixed contact. The moving mechanism is configured to move the movable contactor from a closed position where the movable contact is connected to the fixed contact to an open position where the movable contact is separated from the fixed contact. The squib is configured to generate gas by combustion. The accommodation is for accommodating the fixed contact and the movable contactor. In the circuit interrupter, the gas is introduced into the accommodation.

7. 发明授权

US11177097B2 Gas circuit breaker 有权
公开(公告)号：US11177097B2
公开(公告)日：2021-11-16
申请号：US16768648
申请日：2017-12-01
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Takanori Iijima , Toshiyuki Uchii , Amane Majima , Norimitsu Kato , Akira Shimamura
IPC分类号： H01H33/56 , H01H33/91
摘要： A gas circuit breaker to reduce deterioration of insulation and current-breaking performance thereof includes a sealed container (8) filled with arc-extinguishing gas. A first fixed contactor portion (2) and a second fixed contactor portion (4) are fixed to the sealed container (8). A movable contactor portion (3) moves between the first fixed contactor portion (2) and the second fixed contactor portion (4) and conducts and breaks current between the first fixed contactor portion (2) and the second fixed contactor portion (4). An arc is generated between a fixed arc contactor (21) provided to the first fixed contactor portion (2) and a movable arc contactor (31) provided to the movable contactor portion (3) when current breaking action is extinguished by an arc-extinguishing gas being sprayed thereto. Unnecessary gas generated from the arc-extinguishing gas sprayed to the arc is accumulated in a gas chamber (5).

8. 发明授权

US11133139B2 Use of 1-chloro-2,3,3,3-tetrafluoropropene for isolating or extinguishing electric arcs 有权
公开(公告)号：US11133139B2
公开(公告)日：2021-09-28
申请号：US16959765
申请日：2019-03-14
申请人： Arkema France
发明人： Wissam Rached
IPC分类号： H01H3/56 , H01H33/22 , H01H33/64 , H02B13/055 , H01H33/56 , H01B3/56
摘要： The use of a gas as a medium for electrically isolating and/or extinguishing electric arcs, the gas including 1-chloro-2,3,3,3-tetrafluoropropene. Also, an electrical device including a sealed chamber containing electrical components and a gas for electrically isolating and/or extinguishing electric arcs, in which the gas includes 1-chloro-2,3,3,3-tetrafluoropropene. The gas may be only 1-chloro-2,3,3,3-tetrafluoropropene.

9. 发明授权

US11095099B2 Gas-insulated switching device 有权
公开(公告)号：US11095099B2
公开(公告)日：2021-08-17
申请号：US16965842
申请日：2018-03-14
申请人： Mitsubishi Electric Corporation
发明人： Junichi Abe , Tadahiro Yoshida , Shintaro Yamada , Takao Tsurimoto
IPC分类号： H02B13/035 , H01H33/56 , H01H33/662
摘要： A gas-insulated switching device including, inside a pressure tank: a vacuum valve having a movable contact provided on one side of a movable conductor, and a fixed contact provided to a fixed conductor; an insulation rod connected to another side of the movable conductor led out through a bellows from the vacuum valve; and an airtight container in which the insulation rod and the other side of the movable conductor are stored, wherein an internal space of the bellows and an internal space of the airtight container communicate with each other, one side of the vacuum valve is fixed to a tank wall via an insulation support body, another side of the vacuum valve is connected to the tank wall via the airtight container, and the airtight container insulates the vacuum valve and the tank wall from each other, and is slidable in a movable direction of the movable conductor.

10. 发明授权

US11017919B2 Medium-voltage or high-voltage electrical device having low-thickness hybrid insulation 有权
公开(公告)号：US11017919B2
公开(公告)日：2021-05-25
申请号：US16066380
申请日：2016-12-28
申请人： General Electric Technology GmbH
发明人： David Gautschi , Robert Luescher , Yannick Kieffel , François Biquez
IPC分类号： H01B3/56 , H01H33/22 , H02B13/055 , H01B3/40 , H01B7/282 , H01B3/10 , H01H33/56
摘要： A medium-voltage or high-voltage electrical device comprising a sealed enclosure in which are located electrical components covered with a solid dielectric layer and a gaseous medium ensuring electrical insulation and/or extinguishing electrical arcs, the gaseous medium comprising heptafluoroisobutyronitrile and a dilution gas, the thickness of the solid dielectric layer being less than 1 mm and being produced from a material comprising a polyepoxide or polyurethane resin optionally containing a filler or aluminum oxide.

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