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公开(公告)号：US11574783B2
公开(公告)日：2023-02-07
申请号：US17295295
申请日：2019-11-15
申请人： ABB Schweiz AG
发明人： Alfred Nilsson , Markus Angell , David Karlén , Gunnar Johansson
IPC分类号： H01H33/08
摘要： A splitter plate for an arc extinguishing chamber in a switching device, the splitter plate including a base portion; a pair of arms extending from the base portion; a recess for a movable contact defined between the arms; and a slot in each arm; wherein the recess is arranged between the slots. An arc extinguishing chamber for a switching device is also provided. A switching device for breaking an electric current, the switching device including a plurality of splitter plates or an arc extinguishing chamber is also provided.
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公开(公告)号：US20220122789A1
公开(公告)日：2022-04-21
申请号：US17427065
申请日：2020-04-02
发明人： Kangping ZHOU
摘要： Provided is a drive structure for a high-voltage direct-current relay, the drive structure comprising: a retaining frame, a stopper piece, a movable spring piece, and an elastic member. The retaining frame comprises two retaining side arms, a support plate, and a drive rod. The two retaining side arms are disposed at two sides of the support plate, and the drive rod is connected to a bottom portion of the support plate. The stopper piece has one end connected to a terminal end of one of the retaining side arms, and the other end connected to a terminal end of the other retaining side arm. The elastic member has one end pressing against the support plate and the other end pressing against the movable spring piece, the movable spring piece presses against the stopper piece, and the stopper piece is provided with an arc isolation portion. The drive structure for a high-voltage direct-current relay has an bottom-up assembly manner, in which the elastic member, the movable spring piece, and the stopper piece are stacked sequentially, and the stopper piece is connected to and retained by the two retaining side arms, thereby realizing a simple and fast assembly process, and increasing assembly efficiency of high-voltage direct-current relays. In addition, the arc isolation portion has an effect of isolating arcs, thereby improving a service life of high-voltage direct-current relays despite reverse arcs.
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公开(公告)号：US20210249208A1
公开(公告)日：2021-08-12
申请号：US17049071
申请日：2019-04-19
申请人： ABB S.p.A.
摘要： A low-voltage circuit breaker, including: at least one fixed contact, for each pole, which is electrically connected to a terminal for connection to an electric circuit and a corresponding moving contact which is associable/separable with respect to the fixed contact by means of a rotation of the moving contact; an arc chamber positioned in correspondence of the fixed contact; a rotating contact supporting shaft common to all poles, which is functionally connected to an actuation mechanism of the circuit breaker, the actuation mechanism including a kinematic system operatively connected to an actuation lever for opening/closing operations and provided with opening springs and a tripping shaft for releasing the kinematic system and allowing its movement from a closed to an open position. The low-voltage circuit breaker includes for each pole a quick acting trip device including a plunger inserted in a first channel connected to an arc chamber of the corresponding pole, the first channel being positioned proximate to the at least one fixed contact with its longitudinal axis perpendicular to the axis of the rotating contact supporting shaft, the plunger having a first operative surface subjected to the pressure of the arc chamber and a second operative surface, the quick acting trip device further includes a trip lever having a first portion cooperating with the tripping shaft and a second portion cooperating with the second operative surface of the plunger.
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公开(公告)号：US11004625B2
公开(公告)日：2021-05-11
申请号：US16604932
申请日：2018-04-09
摘要： An improved high speed breaker for industrial or railways applications wherein a high D.C. current must be interrupted with high efficiency and extremely fast intervention times. The breaker includes, in a casing, a base portion supporting an activating a switching mechanism including a holding mechanism and a release mechanism, an intermediate switching or breaking contacts portion, including fixed contacts and movable contacts, and a top arc chute extinguishing portion covering the switching or breaking contact portion, wherein intermediate delimiting portions are provided on both sides of the casing to delimit laterally the intermediate switching or breaking contact portion and to provide lateral guides for the arc chute extinguishing portion, wherein the arc chute extinguishing portion is slidably mounted in the casing, and wherein at least a lever mechanism is extended transversally between the opposite intermediate delimiting portions for moving or raising the arc chute extinguishing portion for inspection.
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5.发明申请公开(公告)号：US20190355534A1
公开(公告)日：2019-11-21
申请号：US16507252
申请日：2019-07-10
申请人： SUPERGRID INSTITUTE
发明人： Maxime GERY , Paul VINSON
摘要： A mechanical breaker apparatus for breaking an electric circuit comprises two electrodes that are movable relative to each other, and including an electric arc splitter device having a multitude of distinct conductive elements that are spaced apart and electrically insulated relative to one another. The splitter device has a first portion and a second portion that are movable relative to each other between: an electrical contact position; and a spaced-apart position of the two portions. The splitter device has at least one series of the distinct conductive elements that, in an electrically closed position of the electrodes of the mechanical apparatus, are arranged along the continuous electrically-conductive path for the nominal electric current through the apparatus as defined by the two portions of the splitter device in the electrical contact position.
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公开(公告)号：US10256059B2
公开(公告)日：2019-04-09
申请号：US15532098
申请日：2015-10-14
发明人： Li Liu , Ke Wen Long
摘要： A novel magnetic switch, comprising a housing, a terminal A and a terminal B, wherein an inner cavity of the housing is internally provided with a magnetic body and a tongue plate, one end of the tongue plate is movably connected to the upper end of the terminal B, the magnetic body, which is integrally linked to the tongue plate, is capable of being raised thereon; the other end of the tongue plate is disposed above the terminal A; the upper end of the terminal A is provided with an arc-removing apparatus, the arc-removing apparatus is provided with a stationary contact, and the other end of the tongue plate is provided with a movable contact. The magnetic switch has an effective structure, thus improving the work stability and prolonging the service life of the switch.
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公开(公告)号：US10224163B2
公开(公告)日：2019-03-05
申请号：US15557819
申请日：2016-03-11
摘要： A circuit breaker housing assembly is disclosed. The housing (47) includes a first housing piece (14) defining a first interior surface (52) including a first mating surface (152), and a second housing piece (60) defining a second interior surface (62) including a second mating surface (260) which is opposingly coupled to the first mating surface to define a seam (202) therebetween. An adhesive material (201) is disposed between the corresponding first and second mating surfaces along the seam. A moveable contact is disposed in the housing and is selectively moveable with respect to a corresponding stationary contact. The first and second interior surfaces (52,62) further cooperatively define a first recess (120) therebetween, and the moveable contact assembly is disposed in said first recess.
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公开(公告)号：US10079127B1
公开(公告)日：2018-09-18
申请号：US15617095
申请日：2017-06-08
发明人： Thomas William Holland , Mario Munoz , Jesus Hernandez , Brian Timothy McCoy , Timothy Biedrzycki
CPC分类号： H01H33/08 , H01H71/02 , H01H73/18 , H01H2009/305 , H01H2235/01
摘要： An arc shield apparatus for an electrical switching device. Arc shield apparatus includes a body having an abutting portion including a first side configured to abut against a lateral side of a contact arm of an electrical switching device, and a second side opposite from the first side, an aperture passing between the first and second side, the aperture configured to receive a spring tab of the contact arm therein, and an arc shield including a first shield portion extending from the first abutting portion, the first shield portion including a first contact surface configured to abut against a contact arm edge, and a second shield portion configured to shield at least some of the spring tab and spring hook. Shielded contact arm assemblies and methods of protecting a contact arm of an electrical switching device during an arcing event, are disclosed, as are other aspects.
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公开(公告)号：US09991073B2
公开(公告)日：2018-06-05
申请号：US15003766
申请日：2016-01-21
申请人： Schaltbau GmbH
发明人： Robert Kralik
CPC分类号： H01H33/182 , H01H1/20 , H01H9/346 , H01H9/443 , H01H9/46 , H01H33/08 , H01H50/546
摘要： The present invention relates to a switching device with at least one contact point and an arc blow device associated with the contact point, where the arc blow device comprises at least one blow magnet for generating a magnetic blow field, and where the blow field is of such nature that a switch arc developing when the contact point opens is blown out from the contact point. It is according to the invention provided that the blow field comprises a first magnetic field area and a second magnetic field area arranged adjacent to the first magnetic field area, where the magnetic field lines of the first magnetic field area are oriented in opposite direction to the magnetic field lines of the second magnetic field area, and where the blow field further comprises a transition area which connects the first magnetic field area and the second magnetic field area with each other, where the orientation of the magnetic field lines in the transition area, each starting out from the first magnetic field area and the second magnetic field area, aligns toward the contact point so that the switch arc within the transition area is in dependence of the direction of the current, starting out from the contact point, directed either into the first magnetic field area or into the second magnetic field area and there in both cases blown in the same direction away from the contact point.
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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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