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公开(公告)号：US11764019B2
公开(公告)日：2023-09-19
申请号：US17044507
申请日：2019-01-04
申请人： LSIS CO., LTD.
发明人： Taeyun Kang , Wookdong Cho , Soohyung Kang , Heonseop Song , Hangil Kim , Gunhyun Lee
CPC分类号： H01H71/025 , H01H33/72 , H01H73/18
摘要： The present disclosure relates to an arc extinguishing chamber base of a molded case circuit breaker and, more specifically, to an arc extinguishing chamber base of a molded case circuit breaker, manufactured using a thermoplastic resin. The present disclosure enables an arc extinguishing chamber base for forming a molded case circuit breaker to be manufactured using an aromatic polyamide-based thermoplastic resin, thereby enabling an increase in productivity, a decrease in component weight, a reduction in component production time, an eco-friendly effect, and recycling. Furthermore, component lifespan increases.
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公开(公告)号：US20230245846A1
公开(公告)日：2023-08-03
申请号：US18103714
申请日：2023-01-31
发明人： Guenter Steding , Jakub Korbel , Christoph Wirth
CPC分类号： H01H73/18 , H01H71/1045 , H01H73/06
摘要： A high voltage circuit-breaker comprising a housing defining a volume for an insulating gas, at least two making and breaking (M&B) units arranged therein, each M&B unit comprising a first and second contact element for forming an electrically conductive connection, at least the first contact element is movable along an axially extending switching axis of the high voltage circuit-breaker, and the first contact elements of the at least two M&B units are motion-coupled; a drive device connected to the first contact element of at least one M&B unit and configured for moving the first contact element along the switching axis over a moving distance for separating conductive connections; and a gas damper connected to the first contact element of the at least one M&B unit and configured for damping movement of the first contact element with a damping force increasing in relation to the moving distance.
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公开(公告)号：US20230030575A1
公开(公告)日：2023-02-02
申请号：US17788919
申请日：2020-12-24
发明人： Yuanzhong WANG , Jiaren XIAO , Xuedong XIA , Francois CHAUDOT , Omer KARAAGAC , Jean-Paul GONNET
摘要： A breaker is provided including: a first stationary contact having a first stationary contact portion; a movable contact having a first movable contact portion; an actuating member to actuate the movable contact; a first arc extinguishing device; a first arc running piece extending from a first arc running end portion arranged adjacent to the first stationary contact portion to a second arc running end portion through the first arc extinguishing device; and an arc guiding piece having a first arc guiding section extending in the first direction, the first arc guiding section being arranged between the movable contact and the first arc extinguishing device in a second direction perpendicular to the first direction. The second arc running end portion and the first arc guiding section are arranged at opposite sides of the first arc extinguishing device in the second direction. A contactor including the breaker is further provided.
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公开(公告)号：US20220415590A1
公开(公告)日：2022-12-29
申请号：US17779875
申请日：2021-02-05
申请人： SOCOMEC
发明人： Jérôme HERTZOG , Guillaume OSTER
摘要： An extinguishing chamber of magnetic blow-out type for a breaking device includes a field source, a magnetic carcass and a breaking region, in which an electric arc is liable to form when a breaking pole belonging to the breaking device is opened. The field source is arranged to generate a magnetic field intended to move the electric arc in order to stretch it and accelerate its cooling and its extinguishing. The carcass is arranged to channel the magnetic field. The carcass is stood up against the field source and closes in front thereof so as to create an air gap in the magnetic circuit formed by the field source and the carcass and to thus maximize the magnetic field that passes through the breaking region.
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公开(公告)号：US20210110987A1
公开(公告)日：2021-04-15
申请号：US17044507
申请日：2019-01-04
申请人： LSIS CO., LTD.
发明人： Taeyun KANG , Wookdong CHO , Soohyung KANG , Heonseop SONG , Hangil KIM , Gunhyun LEE
摘要： The present disclosure relates to an arc extinguishing chamber base of a molded case circuit breaker and, more specifically, to an arc extinguishing chamber base of a molded case circuit breaker, manufactured using a thermoplastic resin. The present disclosure enables an arc extinguishing chamber base for forming a molded case circuit breaker to be manufactured using an aromatic polyamide-based thermoplastic resin, thereby enabling an increase in productivity, a decrease in component weight, a reduction in component production time, an eco-friendly effect, and recycling. Furthermore, component lifespan increases.
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公开(公告)号：US10177561B2
公开(公告)日：2019-01-08
申请号：US15676196
申请日：2017-08-14
发明人： Zhenxing Zhang , Jiansheng Xu
摘要： A selective protection circuit includes a current-limiting module and a control module, where the current-limiting module includes a switch unit, and the switch unit includes a first end, a second end, and a control end; the first end is connected to a positive electrode of a bus voltage of an HVDC power supply, and the second end is connected to a positive electrode of a power supply of a voltage pre-regulator circuit in a load branch connected to the current-limiting module; the control end is connected to the control module; and the control module is configured to output a control signal to the control end when a value of a total current flowing through the switch unit is greater than or equal to a preset threshold, so as to switch off the switch unit.
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公开(公告)号：US20180323028A1
公开(公告)日：2018-11-08
申请号：US15755724
申请日：2017-05-17
发明人： Yanxia ZHANG , Li ZHANG , Zhihao ZHENG , Qianzhong CHEN
摘要： The present invention provides an arc extinguishing structure for direct current circuit breaker, which comprises an arc extinguishing chamber (3) installed on a second casing (2), with a lateral opening (30) which opens towards the first casing (1); a gas generating hood (4) installed at a lower part inside the arc extinguishing chamber (3) and comprising two gas generating plates (41, 42) that are disposed opposite to each other, with a shield plate (43) disposed opposite to the lateral opening (30) and adjacent the second casing (2); a movable contactor (5) and a stationary contactor (6) installed inside an internal installation space (10), with the disconnecting portion between the movable contactor (5) and the stationary contactor (6) being located inside an accommodation space (40) and close to the shield plate (43), so that when the movable contactor (5) becomes disconnected from the stationary contactor (6) and an electric arc is produced, the electric arc triggers the gas generating plates (41, 42) and the shield plate (43) to generate a lot of gas which pushes the electric arc to move in a direction away from the shield plate (43); a plurality of arc extinguishing grid-plates (7) installed at an upper part inside the arc extinguishing chamber (3), having lower slots (71) which are open towards the accommodation space (40) and have a size that gradually decreases along a direction from the second casing (2) to the first casing (1), so that the electric arc during its moving process is continuously blocked by the arc extinguishing grid-plates (7) with increasingly smaller sizes of lower slots (71), and as a result, the electric arc cannot come out from the lateral opening (30) of the arc extinguishing chamber (3), but instead can only enter the spaces between the arc extinguishing grid-plates (7) and thus get extinguished as quickly as possible.
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公开(公告)号：US10026578B2
公开(公告)日：2018-07-17
申请号：US15311112
申请日：2015-03-20
发明人： Yin Nan
摘要： A breaker comprises a static contact, a moving contact, and an arc-extinguishing chamber. A contact surface of an electrical contact of the static contact and an electrical contact of the moving contact and a bottom plane of a base form an acute angle that is located in the first quadrant. The moving contact comprises a conducting rod having a projecting portion, and the electrical contact which is welded on an end surface of the projecting portion in a direction facing the electrical contact of the static contact. A bottom arc-ignition grid plate on the bottom of the arc-extinguishing chamber is arranged lower than the electrical contact of the static contact. A top arc-ignition grid plate on the top of the arc-extinguishing chamber is arranged higher than the maximum position of the electrical contact of the moving contact when the moving contact is opened.
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9.发明授权公开(公告)号：US10020144B2
公开(公告)日：2018-07-10
申请号：US15296378
申请日：2016-10-18
发明人： Marc Rival , Eric Domejean , Jean-Paul Gonnet , Nicolas Chaboud
CPC分类号： H01H33/62 , H01H9/342 , H01H73/18 , H01H2201/024
摘要： A high-voltage multipolar circuit breaker including a first chamber for receiving gases, in communication with a first arc quenching chamber, and including a first aperture for exhausting gases to the exterior of the casing, the aperture being provided with a first downstream filtering device. The circuit breaker furthermore includes at least one second chamber for receiving gases, in communication with at least one second arc quenching chamber of another pole of the circuit breaker, the chamber itself being equipped with a second upstream device for filtering gases, the second chamber for receiving gases including a second aperture for exhausting gases to the exterior of the casing, the chamber being provided with a second downstream filtering device, the first chamber for receiving gases and the second chamber for receiving gases being separated fluidically one from the other by an impermeable wall.
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10.发明授权公开(公告)号：US09947495B2
公开(公告)日：2018-04-17
申请号：US14951715
申请日：2015-11-25
发明人： Herve Vallier , Loic Rondot , Jean-Claude Ramirez
CPC分类号： H01H33/08 , H01H9/36 , H01H33/20 , H01H73/18 , H01H2009/365
摘要： The present disclosure relates to an arc extinguishing chamber of an electrical circuit breaker, including an arc-forming chamber enclosing a fixed contact and a moving contact, which, at the time of their separation, form an arc between them, said forming chamber communicating with the input of an arc-quenching chamber comprising a stack of separators extending parallel to one another, and including a magnetic release situated on the side of the fixed and moving contacts and a switching horn situated on the opposite side, where the form of the separators varies progressively from one separator to the next, or by groups of identical separators from one group to another, or a mixture of both, in such a way that this form changes from the V having the largest opening surface area to the V having the smallest opening surface area, in the direction from the magnetic release to the switching horn.
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