WO2012160732A1 - 回路遮断器 - Google Patents
回路遮断器 Download PDFInfo
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- WO2012160732A1 WO2012160732A1 PCT/JP2012/000836 JP2012000836W WO2012160732A1 WO 2012160732 A1 WO2012160732 A1 WO 2012160732A1 JP 2012000836 W JP2012000836 W JP 2012000836W WO 2012160732 A1 WO2012160732 A1 WO 2012160732A1
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- Prior art keywords
- permanent magnet
- arc
- pair
- circuit breaker
- grid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
Definitions
- the present invention relates to a circuit breaker optimal for a high voltage DC circuit.
- Circuit breakers such as circuit breakers for wiring and earth leakage circuit breakers are used in order to cut off the short-circuit current flowing in the load circuit or the overcurrent of the overload current.
- the circuit breaker is generated between the fixed contact of the fixed contact and the movable contact of the movable contact when the movable contact contacts or separates the fixed contact to open and close the main circuit. The arc is extinguished with an arc extinguishing device.
- the arc extinguishing device includes a plurality of grids formed in a U-shape or a V-shape, and a pair of side plates that support the plurality of grids arranged in a stacked state with a gap therebetween, and surrounds the moving locus of the movable contact.
- a plurality of grids formed in a U-shape or a V-shape
- a pair of side plates that support the plurality of grids arranged in a stacked state with a gap therebetween, and surrounds the moving locus of the movable contact.
- the conventional circuit breaker connected to the DC circuit increases the arc voltage by increasing the gap between the fixed and movable contacts at the time of opening, and the voltage between the contacts is higher than the power supply voltage of the DC circuit. In this way, the current is attenuated and interrupted (hereinafter referred to as a first conventional DC circuit breaker).
- Patent Documents 1 to 3 there is also known a device equipped with a permanent magnet that applies a driving force to the arc so that the arc generated between the fixed contact and the movable contact is directed to the arc extinguishing device.
- a second conventional DC circuit breaker As shown in Patent Documents 4 and 5, a device in which an arc extinguishing device in which a plurality of grids are arranged in a stacked state and a permanent magnet are combined.
- a third conventional DC circuit breaker As shown in Patent Documents 1 to 3, for example, there is also known a device equipped with a permanent magnet that applies a driving force to the arc so that the arc generated between the fixed contact and the movable contact is directed to the arc extinguishing device.
- JP 11-339605 A Japanese Patent Laid-Open No. 10-154458 JP-A-10-154448 CN10146495A CN20109749Y
- the first conventional DC circuit breaker may become a large circuit breaker if the gap between the fixed and movable contacts is increased in order to increase the arc voltage generated between the contacts above the power supply voltage. There is.
- the circuit breaker is made as large as a device used in a conventional AC circuit without increasing the gap between the fixed and movable contacts, sufficient breaking performance will be obtained when used in a DC circuit. May not be obtained.
- the second and third conventional DC circuit breakers require a space for disposing the arc extinguishing device and a space for disposing the permanent magnet in the main body case, respectively. There is a risk. Furthermore, since the third conventional DC circuit breaker has a structure in which a permanent magnet is disposed outside the movable contactor, it must be manufactured separately from the AC circuit breaker from the beginning of assembly. Since there are few assembly processes in common with AC circuit breakers, there is a problem that productivity deteriorates.
- the present invention has been made in view of the above circumstances, and has sufficient interruption performance for a high-voltage DC circuit while reducing the size of the apparatus, and is the same assembly process as an AC circuit breaker. It aims at providing the circuit breaker which can improve productivity by having.
- a circuit breaker includes a movable contact provided with a fixed contact provided with a fixed contact and a movable contact capable of contacting the fixed contact in a main body case.
- a contact and an arc extinguishing device are housed, and the arc extinguishing device is formed in a U-shape or a V-shape, and a plurality of magnetic grids in which a pair of grid legs extend in parallel from the grid base are layered.
- a magnetic flux is generated between the leg portions in a direction perpendicular to the arc generated between the fixed contact and the movable contact, and an electromagnetic force is applied so that the arc moves to the grid base side.
- the permanent magnet holds, and arranging the permanent magnet holding member surrounding the movement trajectory of the movable contact.
- the circuit breaker since the electromagnetic force acts on the arc by the magnetic flux generated by the permanent magnet, the arc moves to the grid base side and contacts the magnetic grid of the arc extinguishing device.
- the broken arc is divided and cooled, and is extinguished at an early stage, so that the interruption performance can be improved even when used in a high voltage DC circuit.
- the permanent magnet holding member holds the permanent magnet, and the permanent magnet holding member is arranged between a pair of grid legs of the plurality of magnetic grids of the arc extinguishing device. Since only a space for disposing the arc extinguishing device needs to be secured, a small circuit breaker is obtained.
- the permanent magnet holding member holding the permanent magnet is removable from the pair of grid legs of the plurality of magnetic grids.
- the DC circuit breaker uses an arc extinguishing device incorporating a permanent magnet holding member, and the AC circuit breaker has the permanent magnet holding member removed. Since an arc extinguishing device may be used, even an AC circuit breaker or a DC circuit breaker has a common assembly process, and the productivity of the circuit breaker is improved.
- the circuit breaker according to one embodiment of the present invention includes a pair of side insulating walls in which the permanent magnet holding members are arranged to be spaced apart from each other in parallel to surround the movement locus of the movable contact, and the pair of side insulating walls.
- a bottom insulating wall connecting the lower portions of the side insulating walls, the pair of side insulating walls holding the permanent magnet, and the bottom insulating walls are opposed to the movable contacts other than the fixed contacts.
- the stationary contact is covered. According to the circuit breaker according to this one embodiment, it is possible to prevent an arc from being generated between the abdomen of the movable contact and the fixed contact.
- the circuit breaker according to one embodiment of the present invention is configured such that the vicinity of the tip of the movable contact during the opening operation is placed on the upper part of the pair of side insulating walls of the permanent magnet holding member.
- a partition wall is provided so as to protrude from the magnetic grid.
- the arc generated in the vicinity of the tip of the movable contact is ignited on the magnetic grid so that the partition wall provided on the upper part of the pair of side insulating walls of the permanent magnet holding member. Prevent.
- the permanent magnet holding member is formed of a polymer material that generates pyrolysis gas by pyrolysis. According to the circuit breaker according to this one embodiment, the permanent magnet holding member generates pyrolysis gas by pyrolysis due to the arc generated between the fixed contact and the movable contact, and the flow of the pyrolysis gas causes the arc to flow. Since it is moved in a direction in contact with the magnetic grid, it is possible to speed up the division and cooling by the contact with the magnetic grid.
- the circuit breaker according to the present invention since the electromagnetic force acts on the arc by the magnetic flux generated by the permanent magnet, the arc moves to the grid base side, and the arc in contact with the magnetic grid of the arc extinguishing device is Even when used in a high-voltage DC circuit, it is possible to improve the interruption performance.
- the permanent magnet holding member holds the permanent magnet, and the permanent magnet holding member is arranged between a pair of grid legs of the plurality of magnetic grids of the arc extinguishing device. Since only a space for disposing the arc extinguishing device needs to be ensured, a small circuit breaker can be obtained.
- FIG. 1 is an exploded perspective view showing a circuit breaker according to the present invention. It is principal part sectional drawing which shows the circuit breaker which concerns on this invention. It is a perspective view which shows the arc-extinguishing apparatus and permanent magnet holding member which concern on this invention. It is the perspective view which integrated the arc-extinguishing apparatus and permanent magnet holding member which concern on this invention. It is a top view which shows the state which has arrange
- FIG. 1 is an exploded perspective view showing components of a three-pole circuit breaker (hereinafter referred to as a circuit breaker) 1 according to the present invention, and FIG.
- the circuit breaker 1 according to the present embodiment is movable in an insulating container composed of a case 2 and a cover 3, and is opened and closed by a fixed contact 4 fixed to the case 2 and an opening / closing mechanism 5.
- a blocking portion including the contact 6 is provided.
- the fixed contact 4 has a fixed contact 7 at one end, and a power-side terminal 9 is integrally formed at the other end.
- the movable contact 6 has a movable contact 8 that contacts the fixed contact 7 at one end, and the other end is rotatably connected to an insulating movable contact holder 10 that is rotatably supported by the case 2.
- the contact spring (not shown) is biased toward the fixed contact 4.
- an arc extinguishing device 11 is disposed in the case 2 at a position surrounding the movement locus of the movable contact 8 of the movable contact 6.
- the arc extinguishing device 11 includes a pair of side support plates 12a and 12b arranged in parallel to each other and a pair of grid legs parallel to the grid base 13a by providing a notch groove on one end side.
- 13b and 13b are U-shaped or V-shaped members, and a plurality of grid legs 13b and 13b are fixed in layers between the pair of side support plates 12a and 12b in the same direction. It is comprised with the grid 13 and the back surface support plate 12c currently fixed between a pair of side surface support plates 12a and 12b so that the some grid 13 of the side which does not face a pair of grid leg parts 13b and 13b may be obstruct
- the pair of side support plates 12a and 12b and the back support plate 12c are made of an electrically insulating material, and the plurality of grids 13 are made of a magnetic material.
- a plurality of gas exhaust ports 12c1 are formed in the back support plate 12c, and the gas generated in the arc extinguishing device 11 is discharged to the outside.
- a pair of permanent magnets 14 a and 14 b and a pair of permanent magnets 14 a and 14 b are provided between a pair of grid legs 13 b and 13 b of the plurality of grids 13 constituting the arc extinguishing device 11.
- a permanent magnet holding member 15 to be held is disposed.
- the permanent magnet holding member 15 is formed of a polymer material made of a resin such as polyamide, polyacetal, or polyester that generates a pyrolysis gas by pyrolysis, and a pair of them facing each other in parallel as shown in FIG.
- the pair of permanent magnets 14a and 14b are inserted into the pair of permanent magnet engaging holes 15f and 15g, and are mounted inside the pair of side insulating walls 15a and 15b by enclosing a resin or an adhesive.
- maintained a pair of permanent magnets 14a and 14b inside a pair of side surface insulating walls 15a and 15b is a some grid arrange
- the pair of side insulating walls 15 a and 15 b has a pair of grids of the grid 13 of the arc extinguishing device 11 around the tip of the movable contact 6 at the open position protruding from the upper surface thereof.
- Partition walls 15a1 and 15b1 that shield from the leg portions 13b and 13b are integrally formed.
- the permanent magnet holding member 15 holds a pair of permanent magnets 14 a and 14 b, and the permanent magnet holding member 15 is interposed between the pair of grid legs 13 b and 13 b of the plurality of grids 13.
- the arc extinguishing device 11 disposed in the case 2 can be attached to a position surrounding the movement locus of the movable contact 8 of the movable contact 6 in the case 2 and can be detached from the case 2.
- the main body case of the present invention corresponds to the case 2
- the magnetic grid of the present invention corresponds to the grid 13.
- the permanent magnet holding member 15 made of a polymer material generates pyrolysis gas by pyrolysis by the arc 16a generated between the fixed and movable contacts 7, 8, and this pyrolysis gas is the gas of the back support plate 12c. It flows to the outside from the exhaust port 12c1. Thereby, since the flow of the pyrolysis gas moves the arc 16a in a direction in contact with the grid 13 of the arc extinguishing device 11, the contact with the grid 13 can divide and accelerate the cooling.
- the arc 16 c may be displaced to the tip of the opened movable contact 6, but the permanent magnet holding member 15 of the present embodiment is an upper surface of the pair of side insulating walls 15 a and 15 b. Since the partition walls 15a1 and 15b1 formed in the above shield the arc 16c at the tip of the movable contact 6 from the pair of grid legs 13b of the grid 13, the arc 16c is prevented from firing on the grid 13. Can do.
- the permanent magnet holding member 15 of the present embodiment has a function of supporting the pair of permanent magnets 14a and 14b, and as shown in FIG. 6, the pair of side insulating walls 15a of the permanent magnet holding member 15. , 15b connecting the lower surface of the bottom contact wall 15c covers the position of the fixed contact 4 facing the movable contact 6, and therefore, between the abdomen of the movable contact 6 and the fixed contact 4. It is possible to prevent the occurrence of an arc (symbol A indicated by a two-dot chain line in FIG. 6).
- the permanent magnet holding member 15 holds a pair of permanent magnets 14a and 14b, and the permanent magnet holding member 15 is interposed between the pair of grid legs 13b and 13b of the plurality of grids 13 of the arc extinguishing device 11. Since only the space for disposing the arc extinguishing device 11 needs to be ensured in the case 2, a small circuit breaker 1 can be provided. Moreover, the arc-extinguishing apparatus 11 incorporating the permanent magnet holding member 15 is used for the DC circuit breaker, and the arc-extinguishing apparatus 11 with the permanent magnet holding member 15 removed is used as a part for the AC circuit breaker. do it. Therefore, even an AC circuit breaker or a DC circuit breaker has a common assembly process, so that the productivity of the circuit breaker can be improved.
- the circuit breaker according to the present invention has sufficient breaking performance for a high-voltage DC circuit while reducing the size of the device, and has the same assembly process as the AC circuit breaker. It is useful for improving productivity.
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Description
回路遮断器は、固定接触子に対して可動接触子が接触動作、或いは離間動作を行なって主回路の開閉を行なう際に、固定接触子の固定接点及び可動接触子の可動接点の間で生じるアークが消弧装置で消弧される。
そこで、直流回路に接続する従来の回路遮断器は、開極時の固定・可動接点の間の接点間ギャップを大きくすることでアーク電圧を高め、接点間電圧を直流回路の電源電圧よりも高めることで電流を減衰させ、遮断を行っていた(以下、第1の従来の直流用回路遮断器と称する)。
さらに、高電圧の直流回路に公的な従来の回路遮断器として、例えば特許文献4,5に示すように、複数のグリッドを積層状態に配置した消弧装置と、永久磁石とを組み合わせた装置もある(以下、第3の従来の直流用回路遮断器と称する)。
さらに、第3の従来の直流用回路遮断器は、可動接触子の外側に永久磁石を配置する構造としているので、組立て初期から交流回路用回路遮断器とは区別して製造しなければならず、交流用回路遮断器と共通の組立て工程が少ないので生産性が悪化するという問題がある。
この一の実施形態に係る回路遮断器によると、直流用の回路遮断器は、永久磁石保持部材を組み込んだ消弧装置を使用し、交流用の回路遮断器は、永久磁石保持部材を取り外した消弧装置使用すればよいので、交流回路用、或いは直流回路用の回路遮断器であっても共通の組立て工程を有し、回路遮断器の生産性が向上する。
この一の実施形態に係る回路遮断器によると、可動接触子の腹部と固定接触子との間にアークが発生するのを防止することができる。
この一の実施形態に係る回路遮断器によると、可動接触子の先端近傍で発生したアークが磁性グリッド上で発弧するのを、永久磁石保持部材の一対の側面絶縁壁の上部に設けた隔壁が防止する。
この一の実施形態に係る回路遮断器によると、永久磁石保持部材が、固定接点及び可動接点間で発生したアークにより熱分解によって熱分解ガスが発生し、この熱分解ガスの流れが、アークを磁性グリッドに接触する方向に移動させるので、磁性グリッドへの接触により分断、冷却を早めることができる。
図1は本発明に係る3極回路遮断器(以下、回路遮断器と称する)1の構成部材を示す分解斜視図であり、図2は、回路遮断器1の要部縦断面図である。
本実施形態の回路遮断器1は、図1に示すように、ケース2及びカバー3からなる絶縁容器内に、ケース2に固定された固定接触子4と、開閉機構5により開閉駆動される可動接触子6とからなる遮断部が設けられている。
可動接触子6は、一端に固定接点7と接触する可動接点8を有し、他端がケース2に回動可能に支持された絶縁物の可動接触子ホルダ10に回動自在に連結されおり、接触スプリング(不図示)により固定接触子4に向かって付勢されている。
図1に示すように、ケース2内には可動接触子6の可動接点8の移動軌跡を囲む位置に消弧装置11が配置されている。
永久磁石保持部材15は、熱分解により熱分解ガスが発生するポリアミド、ポリアセタール、ポリエステルなどの樹脂からなる高分子材料で形成されており、図3に示すように、互いに平行に対向している一対の側面絶縁壁15a,15bと、一対の側面絶縁壁15a,15bの下部間を連結している底面絶縁壁15cと、一対の側面絶縁壁15a,15bの側方縁部からそれぞれ外方に突出している一対の鍔部15d,15eと、一対の側面絶縁壁15a,15の内部に形成され、一対の鍔部15d,15eで開口している一対の永久磁石係合穴15f,15gとを備えている。
そして、図4に示すように、一対の側面絶縁壁15a,15b内部に一対の永久磁石14a,14bを保持した永久磁石保持部材15は、消弧装置11の層状に配置されている複数のグリッド13の一対のグリッド脚部13b,13bの間に配置され、一対の側面絶縁壁15a,15b及び底面絶縁壁15cが、可動接触子6の可動接点8の移動軌跡を囲んでいる(図5参照)。
そして、図1に示すように、永久磁石保持部材15が一対の永久磁石14a,14bを保持しており、この永久磁石保持部材15を複数のグリッド13の一対のグリッド脚部13b,13bの間に配置した消弧装置11は、ケース2内の可動接触子6の可動接点8の移動軌跡を囲む位置に装着可能とされているとともに、ケース2から取り外しが可能とされている。
なお、本発明の本体ケースがケース2に対応し、本発明の磁性グリッドがグリッド13に対応している。
上記構成の回路遮断器1に短絡電流、又は過負荷電流の過電流が流れると、図6に示すように、固定接点7と可動接点8との間に集中電流による電磁反発力が働き、可動接触子6は接触スプリング(不図示)の付勢力に逆らって開極する。そして、可動接触子6が開極すると同時に、固定・可動接点7,8間にアーク16aが発生する。
また、高分子材料からなる永久磁石保持部材15は、固定・可動接点7,8間で発生したアーク16aにより熱分解によって熱分解ガスが発生し、この熱分解ガスが、背面支持板12cのガス排気口12c1から外部に流れる。これにより、熱分解ガスの流れが、アーク16aを消弧装置11のグリッド13に接触する方向に移動させるので、グリッド13への接触により分断、冷却を早めることができる。
また、直流用回路遮断器には、永久磁石保持部材15を組み込んだ消弧装置11を使用し、交流用回路遮断器には、永久磁石保持部材15を取り外した消弧装置11を部品として使用すればよい。したがって、交流回路用、或いは直流回路用の回路遮断器であっても共通の組立て工程を有しているので、回路遮断器の生産性を向上させることができる。
Claims (5)
- 本体ケース内に、固定接点を設けた固定接触子と、前記固定接点に接触可能な可動接点を設けた可動接触子と、消弧装置とを収納し、
前記消弧装置は、U字形状又はV字形状に形成されてグリッド基部から平行に一対のグリッド脚部が延在する複数の磁性グリッドを層状に配置し、開極動作時に前記固定接点及び前記可動接点との間に生じたアークを前記磁性グリッドに引き込んで消弧するとともに、
前記消弧装置を構成する前記複数の磁性グリッドの前記一対のグリッド脚部の間に、前記固定接点及び前記可動接点との間に生じた前記アークに対して直交する方向に磁束が発生し、前記アークが前記グリッド基部側に移動するように電磁力を作用させる永久磁石と、当該永久磁石を保持し、前記可動接点の移動軌跡を囲む永久磁石保持部材と、を配置したことを特徴とする回路遮断器。 - 前記永久磁石を保持した前記永久磁石保持部材は、前記複数の磁性グリッドの前記一対のグリッド脚部の間から取り外し可能とされていることを特徴とする請求項1記載の回路遮断器。
- 前記永久磁石保持部材は、互いに平行に離間して配置されて前記可動接点の移動軌跡を囲む一対の側面絶縁壁と、これら一対の側面絶縁壁の下部間を連結する底面絶縁壁とを備え、
前記一対の側面絶縁壁は前記永久磁石を保持し、前記底面絶縁壁は、前記固定接点以外の前記可動接触子に対向している前記固定接触子を覆っていることを特徴とする請求項1又は2記載の回路遮断器。 - 前記永久磁石保持部材の一対の側面絶縁壁の上部に、開極動作時における前記可動接触子の先端近傍を前記消弧装置の前記磁性グリッドから遮蔽する隔壁を突出して設けたことを特徴とする請求項3記載の回路遮断器。
- 前記永久磁石保持部材は、熱分解により熱分解ガスが発生する高分子材料で形成されていることを特徴とする請求項1に記載の回路遮断器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/993,885 US20130284702A1 (en) | 2011-05-23 | 2012-02-08 | Circuit breaker |
EP12789157.0A EP2717288A4 (en) | 2011-05-23 | 2012-02-08 | CIRCUIT BREAKER |
KR1020137014976A KR20140012034A (ko) | 2011-05-23 | 2012-02-08 | 회로 차단기 |
CN201280004121.2A CN103262200B (zh) | 2011-05-23 | 2012-02-08 | 电路断路器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011114368A JP5682450B2 (ja) | 2011-05-23 | 2011-05-23 | 回路遮断器 |
JP2011-114368 | 2011-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012160732A1 true WO2012160732A1 (ja) | 2012-11-29 |
Family
ID=47216827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/000836 WO2012160732A1 (ja) | 2011-05-23 | 2012-02-08 | 回路遮断器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130284702A1 (ja) |
EP (1) | EP2717288A4 (ja) |
JP (1) | JP5682450B2 (ja) |
KR (1) | KR20140012034A (ja) |
CN (1) | CN103262200B (ja) |
TW (1) | TW201314728A (ja) |
WO (1) | WO2012160732A1 (ja) |
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- 2012-02-08 US US13/993,885 patent/US20130284702A1/en not_active Abandoned
- 2012-02-08 WO PCT/JP2012/000836 patent/WO2012160732A1/ja active Application Filing
- 2012-02-08 CN CN201280004121.2A patent/CN103262200B/zh active Active
- 2012-02-08 KR KR1020137014976A patent/KR20140012034A/ko not_active Application Discontinuation
- 2012-05-23 TW TW101118328A patent/TW201314728A/zh unknown
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Also Published As
Publication number | Publication date |
---|---|
CN103262200A (zh) | 2013-08-21 |
TW201314728A (zh) | 2013-04-01 |
JP2012243659A (ja) | 2012-12-10 |
EP2717288A4 (en) | 2014-12-10 |
KR20140012034A (ko) | 2014-01-29 |
JP5682450B2 (ja) | 2015-03-11 |
CN103262200B (zh) | 2015-09-16 |
US20130284702A1 (en) | 2013-10-31 |
EP2717288A1 (en) | 2014-04-09 |
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