-
公开(公告)号：US12020877B2
公开(公告)日：2024-06-25
申请号：US17944355
申请日：2022-09-14
发明人： Michael Fasano
摘要： A circuit interrupter has first and second contacts that are actuatable relative to each other between a closed position wherein a power source and a load are in electrical communication and an open position wherein the power source and the load are not in electrical communication. An arc extinguisher is also provided for extinguishing an arc that develops in the vicinity of the contacts. An electromagnetic coil, when energized, generates a magnetic field that permeates an area where the arc develops, the magnetic field urging the arc toward the arc extinguisher regardless of a polarity of the contacts. An auxiliary switch is operably connected to the contacts, such that upon movement of the contacts relative to each other from the closed position toward the open position, the auxiliary switch is activated so as to energize a circuit feeding power to the electromagnetic coil, thereby generating the magnetic field.
-
公开(公告)号：US20240186084A1
公开(公告)日：2024-06-06
申请号：US18285921
申请日：2022-04-29
发明人： Yong Ik PARK , Han Baek CHUNG
IPC分类号： H01H33/18
CPC分类号： H01H33/18
摘要： Disclosed are a circuit breaking unit and an air circuit breaker including the same. The present disclosure provides a circuit breaking unit, including: a fixed contact; a movable contact that is in contact with or spaced apart from the fixed contact; a fixed contact terminal having the fixed contact disposed at a lower end thereof and extending upward; a movable contact terminal on which the movable contact is disposed and configured such that the movable contact moves in a direction toward the fixed contact or in a direction away from the fixed contact; and a low runner disposed extending upward from the fixed contact, one end thereof coupled to the fixed contact terminal, and the other end thereof spaced apart from the fixed contact terminal, wherein a magnet unit or a U assembly is disposed between the low runner and the fixed contact terminal.
-
公开(公告)号：US20230223223A1
公开(公告)日：2023-07-13
申请号：US18174990
申请日：2023-02-27
发明人： Mitsuya ITOU , Kouetsu TAKAYA , Shouta KIKUCHI
CPC分类号： H01H33/18 , H01H50/546
摘要： An electromagnetic contactor includes a stationary contact element including a stationary contact, a movable contact element including a movable contact configured to be able to contact and separate from the stationary contact, an arc-extinguishing chamber that contains a contact portion that includes the stationary contact and the movable contact, and an arc runner provided in the arc-extinguishing chamber. The arc-extinguishing chamber includes an insulating wall portion that is situated beside the stationary contact element in a first direction that is a width direction of the stationary contact element. The arc runner is situated beside the contact portion in a second direction that is perpendicular to the first direction.
-
公开(公告)号：US11651916B2
公开(公告)日：2023-05-16
申请号：US17277088
申请日：2019-08-27
发明人： Carlo Bossoni , Albino Pellizzi
CPC分类号： H01H33/08 , H01H33/182 , H01H33/53
摘要： An improved switching or contactor device with high arc extinguishing capabilities industrial and railways applications where a high current must be switched on and off is provided. The switching or contactor device includes, in a casing, a switch base portion including electrical switching means of a low voltage driving portion active on moving contacts; a high voltage portion including the moving contacts driven towards and away from each other with respect to a mutual contact position, said moving contacts being mounted at respective contact ends of a toggle mechanism which is movable by a low voltage driving portion, and a top arc chute extinguishing portion covering the high voltage portion.
-
公开(公告)号：US11557448B2
公开(公告)日：2023-01-17
申请号：US17045928
申请日：2019-04-16
申请人： TDK Electronics AG
发明人： Robert Hoffmann , Frank Werner
摘要： In an embodiment a switching device includes at least one stationary contact in a switching chamber containing a gas comprising H2 and one movable contact in the switching chamber, wherein the switching chamber has a switching chamber wall and a switching chamber base, and wherein the switching chamber at least partially comprises a polymer material configured to release hydrogen when heated.
-
公开(公告)号：US20230005683A1
公开(公告)日：2023-01-05
申请号：US17756883
申请日：2020-04-09
发明人： Jungwoo YOO
摘要： An arc path formation unit and a direct current relay are disclosed. The arc path formation unit according to an embodiment of the present disclosure comprises a plurality of magnet parts. Each magnet part is arranged adjacent to a plurality of fixed contacts. Opposing surfaces of the plurality of magnet parts located adjacent to one fixed contact and facing each other, the opposing surfaces facing each other, and opposing surfaces of the magnet parts located adjacent to another fixed contact, the opposing surfaces facing each other, are configured to have the same polarity. Accordingly, electromagnetic forces formed in the fixed contacts are formed in a direction away from each other and away from a central portion. Accordingly, damage to each configuration of the arc path formation unit and the direct current relay caused by a generated arc can be minimized.
-
公开(公告)号：US20220351926A1
公开(公告)日：2022-11-03
申请号：US17725221
申请日：2022-04-20
摘要： An electrical contactor has an arc extinguishing component. The electrical contactor includes a first electrical contact and a second electrical contact that, when the contactor is open, define a gap therebetween. The arc extinguishing component includes a magnet adjacent a first side of the gap and an electrically non-conductive shutter adjacent an opposing second side of the gap. The electrically non-conductive shutter capable of reciprocating from a first position to a second position wherein the first position is outside of the gap and the second position is within the gap.
-
公开(公告)号：US11289291B2
公开(公告)日：2022-03-29
申请号：US17055327
申请日：2018-06-25
发明人： Daisaku Yamada , Koma Sato
摘要： A gas circuit breaker includes: a fixed arc contact disposed on an axis of motion, whose tip is directed to one side in a first direction that is parallel to the axis of motion; a movable arc contact that can reciprocate along the axis of motion between a position when in contact with the tip of the fixed arc contact and a position when separated from the tip of the fixed arc contact; and a first permanent magnet and a second permanent magnet as a permanent magnet whose magnetic poles are aligned in a second direction that is a direction perpendicular to the first direction. The fixed arc contact has a shape that is gradually widened in a direction away from the axis of motion from the tip toward another side in the first direction.
-
公开(公告)号：US11177098B2
公开(公告)日：2021-11-16
申请号：US16495309
申请日：2017-09-07
申请人： LSIS CO., LTD.
发明人： Ji-Hong Park , Hye-Lim Yoon , Jae-Seop Kim
摘要： A DC circuit breaker having an arc blowout device according to the present invention comprises: a fixed contact; a movable contact operating so as to make contact with or separate from the fixed contact; an operation part for driving the movable contact; and a blowout device which provides a magnetic field in a direction crossing the arc generated when the movable contact is separated, wherein the blowout device includes: a pair of core plates arranged side by side on both sides of the movable contact and the fixed contact; core rods integrally connected to the core plates, respectively, and having symmetrical shapes to each other; and a blowout coil coupled to one of the core rods.
-
公开(公告)号：US20210304993A1
公开(公告)日：2021-09-30
申请号：US17262212
申请日：2019-02-19
申请人： OMRON Corporation
发明人： Kohei OTSUKA , Ryota MINOWA , Hiroyuki IWASAKA , Yasuo HAYASHIDA , Shingo MORI , Naoki KAWAGUCHI
摘要： A relay, including a first fixed contact, a second fixed contact, a movable contact piece having first and second movable contacts, a contact piece holding unit configured to hold the movable contact piece, a magnet for arc extinguishing, and a debris suction unit configured to exert a magnetic force to suck debris, is disclosed. A first contact position between the first fixed contact and the first movable contact is located between the magnet for arc extinguishing and the contact piece holding unit in a longitudinal direction of the movable contact piece. The debris suction unit is disposed so that the first contact position does not overlap a region between the debris suction unit and the contact piece holding unit. A magnet force exerted by the debris suction unit in the contact piece holding unit is larger than a magnetic force exerted by the magnet in the contact piece holding unit.
-
-
-
-
-
-
-
-
-
搜索结果
443 条记录 (耗时 0.023 秒)
