WO2011018870A1 - 回路遮断器 - Google Patents
回路遮断器 Download PDFInfo
- Publication number
- WO2011018870A1 WO2011018870A1 PCT/JP2010/003839 JP2010003839W WO2011018870A1 WO 2011018870 A1 WO2011018870 A1 WO 2011018870A1 JP 2010003839 W JP2010003839 W JP 2010003839W WO 2011018870 A1 WO2011018870 A1 WO 2011018870A1
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- circuit
- circuit breaker
- switch
- push button
- breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages with differential transformer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/052—Controlling, signalling or testing correct functioning of a switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
Definitions
- the present invention relates to a circuit breaker having an overcurrent protection function and a ground fault protection function applied to a low voltage distribution system.
- the circuit breaker applied to the low-voltage distribution system is a circuit breaker (MCCB: Molded Case Circuit Breaker) with an overcurrent protection function, and an earth leakage breaker with an overcurrent protection function and a ground fault protection function.
- MCCB Molded Case Circuit Breaker
- ELCB Earth Leakage Circuit Breaker
- the earth leakage circuit breaker has a zero-phase current transformer that detects the unbalanced current of the main circuit using the main circuit as a primary conductor,
- a leakage detection circuit electronic circuit including IC
- a trip coil unit that trips the circuit breaker switching mechanism in response to the output signal of the leakage detection circuit It becomes the composition equipped with. Note that, as a control power source for the leakage detection circuit, normally, the interphase voltage of the main circuit is rectified and supplied to the leakage detection circuit.
- circuit breakers and earth leakage circuit breakers currently produced in Japan are designed to have the same circuit breaker as the main body case of the same external size in order to improve the user-friendliness.
- the mainstream is a configuration in which common protective functional parts are installed in the case.
- circuit breakers for circuit breakers and earth leakage circuit breakers the interphase dielectric strength of the main circuit is specified by the standard, and the test is performed from the outside with the contact of the main circuit of the breaker open. High voltage) is applied to measure the insulation strength of the product.
- the earth leakage detection circuit constituted by an electronic circuit is connected to the control power supply circuit branched and connected to the main circuit, in order to protect the earth leakage detection circuit from the test voltage, Therefore, it is necessary to separate the leakage detection circuit from the main circuit during the withstand voltage test. Therefore, a power withstand voltage test switch (mega test switch) linked to the open / close mechanism of the earth leakage circuit breaker is additionally provided, and the power supply circuit is connected to the earth leakage detection circuit by turning the switch OFF during the withstand voltage test. In conjunction with this switch operation, the circuit breaker switching mechanism is mechanically forcibly tripped to open the main circuit contact, and the circuit breaker is held in this open state.
- An earth leakage breaker is also known (see, for example, Patent Document 1).
- circuit breakers used in low-voltage distribution systems: circuit breakers for wiring and earth leakage circuit breakers.
- the user can selectively use overcurrent protection and ground fault protection functions with one unit.
- circuit breaker product that can be used in the future.
- a mega test switch is inserted in the power supply circuit that supplies power to the leakage detection circuit.
- this mega test switch is linked to the switching mechanism of the circuit breaker, It cannot be used as a circuit breaker with the protection function disabled.
- the present invention is a novel circuit in which the protection function of the circuit breaker can be selectively switched by a simple operation so that the user can use it as a circuit breaker or a leakage breaker if necessary.
- the purpose is to provide a circuit breaker.
- a circuit breaker body case includes a main circuit contact, a switching mechanism, an overcurrent tripping device, and a leakage current tripping device including a zero-phase current transformer and a leakage detection circuit.
- a mode changeover switch unit that selects and sets the ground fault protection function to “valid” or “invalid” by turning on and off the contact inserted in the power supply circuit that supplies power to the leakage detection circuit from the main circuit (Claim 1)
- the mode changeover switch is specifically configured in the following manner.
- the mode changeover switch is provided in the breaker body case and connected to the power feeding circuit between the main circuit and the leakage detection circuit, and the operation end of the switch body. It consists of a push button type switch operating part that turns the switch on and off via a linked actuator, and attaches it to the cover of the circuit breaker body case with the operating end of the push button of the switch operating part facing outside. Item 2).
- the switch body is a fixed electrode arranged on the bottom side of the switch case as a set of an insulating switch case in which the poles are partitioned and a pair of contacts that are separated from each other. And a movable movable contact member arranged opposite to the fixed electrode, and an operation rod that holds the movable contact members of the respective poles together and is drawn out above the switch case, and the switch body It arrange
- the actuator is a swinging lever combined with a biasing spring, and one lever arm extending on both sides of the pivot shaft is connected to the operation rod of the switch body, The lever arm is arranged so as to oppose the tip of the push button.
- the switch operation unit includes a push / twist lock type push button and a cylindrical guide that surrounds the push button and its return spring and is attached to the cover of the circuit breaker body case.
- a vertical slit that is configured by an assembly and that guides the push button in the ON / OFF direction by inserting a protrusion formed on the distal end side of the push button on the peripheral surface of the cylindrical guide,
- An engagement step portion is formed extending in the circumferential direction from the lower end and engaging with the protrusion to lock and hold the push button in the lock position.
- the ground fault protection function of the circuit breaker can be selected and set to the “valid” or “invalid” mode simply by switching the pushbutton of the mode changeover switch unit equipped on the circuit breaker. it can.
- the ground fault protection function of the circuit breaker is temporarily switched to “valid” in order to check whether leakage current is flowing in the distribution circuit of the on-site power distribution facility on the user side, and then the ground fault protection function Switch to “invalid” and use as a circuit breaker.
- a circuit breaker that was used as a circuit breaker with the ground fault protection function set to “invalid” can be used as a ground fault circuit breaker by returning the ground fault protection function to “enabled”. Become.
- FIG. 1 It is a circuit diagram of the circuit breaker by the Example of this invention. It is a disassembled perspective view showing the assembly structure of the circuit breaker corresponding to FIG. It is a block diagram of the mode changeover switch unit in FIG. 1, (a) is a disassembled perspective view of the whole unit, (b) is the perspective view seen from the lower surface side of the cylindrical guide. It is an internal structure figure of a switch main part in Drawing 3, and (a) and (b) are figures showing a state of switch ON and OFF, respectively.
- FIG. 4 is an operation explanatory diagram of the mode changeover switch shown in FIG. 3, and (a) and (b) are diagrams showing the push-up and push-in states, respectively.
- FIG. 1 is a circuit diagram of a circuit breaker according to the present invention.
- 1 is a main circuit corresponding to each phase of R, S, and T
- 2 is a main circuit contact
- 3 is a main circuit contact 2 opening / closing.
- the mechanism unit 4 is an operation handle
- 5 is an overcurrent tripping device that detects an overload current and a short-circuit current of the main circuit 1 and trips the switching mechanism unit 3.
- An earth leakage trip device that trips the switching mechanism 3 by detecting a ground fault current in the distribution path uses the main circuit 1 of each phase R, S, T as a primary conductor to detect the unbalanced current.
- the leakage detection circuit 7 feeds the inter-phase voltage of the main circuit via the power supply line 9 and the rectifier circuit 10 branchedly connected to the main circuit 1 of each phase as its control power supply.
- a mode changeover switch unit 11 according to the invention is connected. The detailed structure of the mode switch unit 11 will be described later.
- the R, S, and T phase voltages of the main circuit are DC-converted and supplied.
- the R-T phase voltage may be supplied to the leakage detection circuit 7 in some cases.
- reference numeral 12 denotes a circuit breaker body case of a circuit breaker having a divided structure of a case 12a, a cover 12b and a top cover 12c.
- the circuit breaker body case 12 includes an opening / closing mechanism unit 3, an operation handle 4, an overcurrent trip device 5, a zero-phase current transformer 6, a leakage detection circuit 7, a trip coil unit 8, R, S, and T phases.
- the functional parts of the trip crossbar 15 that receive the mechanical output signals of the main circuit conductor 13, the arc extinguishing chamber 14, and the trip coil unit 8 corresponding to each phase of the trip circuit 15 and trip the open / close mechanism 3 are shown in the figure. It is laid out and mounted.
- the above-mentioned assembly of the mode changeover switch unit 11 is accommodated and arranged.
- the cover 12b is assembled with a push button 16 for turning on / off the switch body of the unit facing the mode changeover switch unit 11, and the top cover 12c has an operation window hole corresponding to the push button 16. 12c-1 is open.
- the mode changeover switch unit 11 is composed of an assembly of a switch body 17, an actuator 18 linked to the operation end of the switch body 17, and a unit case 19.
- the switch body 17 is as shown in FIG. A box-shaped switch case (molded resin case) 17a in which the respective internal poles are partitioned by a partition wall, and a fixed electrode 17b for each electrode incorporated on the lower side of the switch case 17a with a pair of left and right contacts separated from each other.
- a hook-shaped knob 17d-1 is formed at the tip of the contact holder 17d.
- an engagement convex portion 19c is formed on the outer surface of the unit case 19, and the engagement convex portion 19c is mounted in the state where the mode changeover switch unit 11 is mounted on the body case 12 of the circuit breaker as shown in FIG.
- the portion 19c is fitted into an engagement groove 12a-1 formed by cutting out the upper edge of the side wall of the case 12a so as to be positioned and held at a fixed position.
- the actuator 18 has a shaft 18a as a swinging fulcrum and a swinging lever with lever arms 18b and 18c extending on the left and right sides thereof as a base, and the shaft 18a has a biasing spring 18d (torsion coil).
- the shaft portion 18a is pivotally supported by a bearing portion 19b provided on the top of the unit case 19 so as to be swingable.
- An engaging arm portion 18e is formed at the tip of a lever arm 18b extending rightward from the shaft portion 18a.
- the engaging arm portion 18e is hooked on a knob portion 17d-1 drawn upward from the switch body 17.
- the lever arm 18c extending to the left from the shaft portion 18a is opposed to the tip of the push button 16 disposed on the case cover 12b as described later.
- the urging spring 18d assembled to the actuator 18 urges the lever arm 18b clockwise in the free state of the actuator to push the switch body 17 into the ON position and drive it.
- the push button 16 is a push / twist lock type button and is fitted and held in a cylindrical guide 22 formed integrally with the cover 12b of the main body case 12 in combination with a return spring 21 (compression coil spring).
- the tip of the push button 16 faces the lever arm 18c of the actuator 18 at this insertion position.
- a groove for inserting a screwdriver (tool) is cut into the head of the push button 16, and an engagement protrusion 16 a formed at the tip of the shaft portion extending downward from the head is formed at the tip of the cylindrical guide 22. Engagement and retention are maintained.
- a guide protrusion 16b is formed on the peripheral surface of the head of the push button 16, and a longitudinal guide slit 22a and an end of the slit 22a are formed on the peripheral surface of the cylindrical guide 22 corresponding to the protrusion 16b.
- An engagement step portion 22b extending in the circumferential direction is formed (see FIG. 3B).
- the circuit breaker sets the ground fault protection function to “valid” and functions as an earth leakage breaker.
- the contact holder 17d is pulled up in the direction of the arrow B in the switch body 17, and the contact is turned off, thereby disconnecting the circuit of the power line 9 in FIG.
- the leakage detection circuit 7 is disconnected from the main circuit 1 and the function as the leakage breaker is released, and the circuit breaker functions as a wiring breaker with the ground fault protection function set to “invalid”.
- the push button 16 is twisted in the opposite direction from the outside of the breaker case. To do. As a result, the protrusion 16b of the push button 16 is disengaged from the engagement step portion 22b of the cylindrical guide 22 and is engaged with the guide slit 22a, so that the push button 16 is pushed upward by receiving the spring force of the return spring 21. It is done. Therefore, the lever arm 18c of the actuator 18 that has been pressed by the push button 16 is swung clockwise by the spring force of the biasing spring 18d, and the movable contact holder 17d of the switch body 17 is pushed by the lever arm 18b. Return to the switch ON state. As a result, the leakage detection circuit 7 returns to the state where power is supplied from the main circuit 1, and the circuit breaker functions as a leakage breaker.
- the ground contact protection function of the circuit breaker can be set to “valid” or “invalid” by turning on and off the 11 switch contacts.
- the user can use the circuit breaker installed in the power distribution facility as an earth leakage breaker or a circuit breaker as necessary.
- a withstand voltage test (mega test) of a circuit breaker is performed in a state where it is used as a leakage breaker, the leakage current of the electronic circuit is detected by turning off the mode changeover switch unit 11.
- the circuit can be disconnected from the main circuit of the circuit breaker and safely protected from the test voltage.
- the protection function of the circuit breaker can be selectively switched by a simple operation so that the user can use the circuit breaker as a wiring breaker or an earth leakage circuit breaker as required.
- a circuit breaker can be provided.
Abstract
Description
上記の配線用遮断器は、遮断器の本体ケース(モールド樹脂ケース)に主回路接点,開閉機構部,操作ハンドル,および過電流引外し装置の各機能部品を搭載した構成になる。これに対して、漏電遮断器は、配線用遮断器と同様な過電流保護機能部品のほかに、主回路を一次導体として主回路の不平衡電流を検出する零相変流器、および零相変流器の二次出力レベルから地絡事故発生を検知する漏電検出回路(ICを含む電子回路),および漏電検出回路の出力信号を受けて遮断器の開閉機構部をトリップ動作させるトリップコイルユニットを装備した構成になる。なお、漏電検出回路の制御電源として通常は、主回路の相間電圧を整流して漏電検出回路に給電するようにしている。
一方、配線用遮断器,漏電遮断器の製品については、主回路の相間絶縁耐力が規格で規定されており、その試験は遮断器の主回路の接点を開極した状態で外部から試験電圧(高電圧)を印加して製品の絶縁強度を測定するようにしている。この場合に、漏電遮断器では、主回路に分岐接続した制御電源回路には電子回路で構成した漏電検出回路が接続されていることから、この漏電検出回路を前記の試験電圧から保護するためには、耐電圧試験時に漏電検出回路を主回路から切り離しておくことが必要である。そこで、漏電遮断器の開閉機構部に連係させた耐電圧テスト用のスイッチ(メガテスト用スイッチ)を追加装備し、耐電圧試験の実施時に前記スイッチをOFF操作して漏電検出回路に通じる電源回路を断路すると同時に、このスイッチ操作に連動して遮断器の開閉機構部を機械的に強制トリップして主回路接点を開極するとともに、遮断器をこの開極状態に拘束保持させるようにした構成の漏電遮断器も知られている(例えば、特許文献1参照)。
そこで、この発明はユーザーが必要に応じて配線用遮断器として使用する,あるいは漏電遮断器として使用できるように、遮断器の保護機能を簡単な操作で選択的に切り換えられるようにした新規な回路遮断器を提供することを目的とする。
主回路から漏電検出回路に給電する電源回路に介挿した接点をON,OFFして地絡保護機能を“有効”,“無効”に選択設定するモード切換スイッチユニットを装備し(請求項1)、そのモード切換スイッチは具体的に次記のような態様で構成するものとする。
(4)前項(1)において、スイッチ操作部は、プッシュ/捻回ロック式の押ボタンと、該押ボタンおよびその復帰ばねを包囲して遮断器本体ケースのカバーに装着した筒状ガイドとの組立体で構成され、かつ前記筒状ガイドの周面には前記押ボタンの先端側に形成した突起を嵌入して前記押ボタンをON/OFF方向に案内する縦向きのスリット、および該スリットの下側終端から周方向に延びて前記突起と係合し前記押ボタンをロック位置に係止保持する係合段部を形成する(請求項5)。
まず、図1はこの発明による回路遮断器の回路図であり、図において、1はR,S,Tの各相に対応する主回路、2は主回路接点、3は主回路接点2の開閉機構部、4は操作ハンドル、5は主回路1の過負荷電流,短絡電流を検出して開閉機構部3をトリップ動作させる過電流引外し装置である。また、配電路の地絡電流を検出して開閉機構部3をトリップさせる漏電引外し装置は、R,S,T各相の主回路1を一次導体としてその不平衡電流を検出する零相変流器6と、零相変流器6の二次出力レベルから地絡発生を検知する漏電検出回路(ICを含む電子回路)7と、漏電検出回路7からの出力信号を受けて開閉機構部3をトリップ動作させるトリップコイルユニット8からなる。
ここで、スイッチ本体17は、図4で示すように内部の各極の間が隔壁で仕切られた箱形のスイッチケース(モールド樹脂ケース)17aと、互いに離間した左右一対の接点を組みとしてスイッチケース17aの下部側に組み込んだ各極の固定電極17bと、該固定電極17bに対向する橋絡形の可動接触子17cと、各極の可動接触子17cを一括保持してその操作端をスイッチケース17aから上方に引き出した操作ロッドとしての可動接触子ホルダ17dとからなり、接触子ホルダ17dの先端にはフック形の摘み部17d-1が形成されている。
そして、このスイッチ本体17は、図3で示すようにユニットケース19の中段位置に形成したスイッチ支持段部19aに嵌め込んで取付けられる。なお、20はスイッチ本体17の固定電極17bに配線してスイッチケース17aから引き出した6本のリード線である。
また、前記ユニットケース19の外側面には係合凸部19cが形成されており、図2で表すように遮断器の本体ケース12にモード切換スイッチユニット11を装着した状態で、前記係合凸部19cをケース12aの側壁上端縁に切欠き形成した係合溝12a-1に嵌め込んで定位置に位置決め保持するようにしている。
また、押ボタン16の頭部にはドライバー(工具)を差し込む溝が切り込まれ、この頭部から下方に延在する軸部の先端に形成した係合突起16aを筒状ガイド22の先端に係合して抜け止め保持されている。また、押ボタン16の頭部周面にはガイド用の突起16bを形成し、この突起16bに対応して筒状ガイド22の周面には縦方向の案内用スリット22a、およびスリット22aの終端から周方向に延びる係合段部22bが形成されている(図3(b)参照)。この構造により押ボタン16を押込み方向にガイドし、またプッシュ/捻回操作により押ボタン16を押込み位置に係止保持するようにしている。
これにより、スイッチ本体17は図4(b)で示すように接触子ホルダ17dが矢印B方向に引き上げられて接点がOFFし、図1における電源線9の回路を断路する。その結果、漏電検出回路7は主回路1から切り離されて漏電遮断器としての機能が解除され、回路遮断器は地絡保護機能を“無効”として配線用遮断器として機能するようになる。
なお、漏電遮断器として使用している状態で、回路遮断器の耐電圧試験(メガテスト)を実施する場合には、前記のモード切換スイッチユニット11をOFF操作することにより、電子回路の漏電検出回路を回路遮断器の主回路から切り離して試験電圧から安全に保護することができる。
2 主回路接点
3 主回路接点の開閉機構部
5 過電流引外し装置
6 零相変流器
7 漏電検出回路
8 トリップコイルユニット
9 漏電検出回路の電源線
11 モード切換スイッチユニット
12 遮断器の本体ケース
16 押ボタン
17 スイッチ本体
17b 固定電極
17c 可動接触子
17d 可動接触子ホルダ
18 アクチュエータ
19 ユニットケース
21 復帰ばね
22 筒状ガイド
Claims (5)
- 遮断器本体ケースに主回路接点,開閉機構部,過電流引外し装置、および零相変流器,漏電検出回路を含む漏電引外し装置を搭載した構成になる過電流保護機能と地絡保護機能を備えた回路遮断器において、
主回路から漏電検出回路に給電する電源回路に介挿した接点をON,OFFして地絡保護機能を“有効”,“無効”に選択設定するモード切換スイッチユニットを装備したことを特徴とする回路遮断器。 - 請求項1に記載の回路遮断器において、前記モード切換スイッチユニットが、前記遮断器本体ケースに内装して主回路と前記漏電検出回路との間の給電回路に接続したスイッチ本体と、該スイッチ本体の操作端に連繋したアクチュエータを介してスイッチをON,OFF操作する押ボタン式スイッチ操作部とからなり、そのスイッチ操作部の押ボタンの操作端を外部に臨ませて前記遮断器本体ケースのカバーに装着したことを特徴とする回路遮断器。
- 請求項2に記載の回路遮断器において、前記スイッチ本体が、各極の間が仕切られた絶縁物製のスイッチケースと、互いに離間する一対の接触子を組みとして前記スイッチケースの底部側に配した固定電極と、前記固定電極に対向配置した橋絡形の可動接触子と、各極の可動接触子を一括保持してスイッチケースの上方に引出した操作ロッドとの組立体で構成され、該スイッチ本体を前記遮断器本体ケースに搭載した零相変流器と当該遮断器本体ケースの側壁との間の空きスペースに配置したことを特徴とする回路遮断器。
- 請求項3に記載の回路遮断器において、前記アクチュエータが付勢ばねと組合せた揺動式レバーであり、その枢支軸部の両側に延在する一方のレバーアームを前記スイッチ本体の操作ロッドに連繋し、他方のレバーアームを前記押ボタンの先端に対峙させて配置したことを特徴とする回路遮断器。
- 請求項2に記載の回路遮断器において、前記押ボタン式スイッチ操作部がプッシュ/捻回ロック式の押ボタンと、該押ボタンおよびその復帰ばねを包囲して前記遮断器本体ケースのカバーに装着した筒状ガイドとの組立体で構成され、かつ前記筒状ガイドの周面には押ボタンに形成した突起を嵌入して押ボタンをON/OFF方向に案内する縦向きのスリット、および該スリットの下側終端から周方向に延びて前記突起と係合し押ボタンをロック位置に係止保持する係合段部を形成したことを特徴とする回路遮断器。
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KR1020117011637A KR101210736B1 (ko) | 2009-08-11 | 2010-06-09 | 회로 차단기 |
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CN201080003399.9A CN102232236B (zh) | 2009-08-11 | 2010-06-09 | 电路断路器 |
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JP2009186550A JP5402378B2 (ja) | 2009-08-11 | 2009-08-11 | 回路遮断器 |
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JP (1) | JP5402378B2 (ja) |
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Cited By (2)
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CN106229237A (zh) * | 2016-09-26 | 2016-12-14 | 常熟开关制造有限公司(原常熟开关厂) | 低压塑壳断路器的脱扣装置 |
CN106252177B (zh) * | 2016-09-26 | 2018-05-22 | 常熟开关制造有限公司(原常熟开关厂) | 低压塑壳断路器的脱扣装置 |
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CN105097376B (zh) * | 2014-05-07 | 2019-01-11 | 布蒂克诺公司 | 具有灭弧屏障的断路器 |
CN105097369B (zh) * | 2014-05-07 | 2018-12-28 | 布蒂克诺公司 | 塑壳断路器及其组装方法 |
KR101701028B1 (ko) | 2015-04-13 | 2017-02-01 | 엘에스산전 주식회사 | 안전 스위칭 부를 갖는 차단기 |
CN106207983A (zh) * | 2016-08-11 | 2016-12-07 | 现代重工(中国)电气有限公司 | 一种mccb塑料外壳式断路器的选择性保护系统 |
FR3072497B1 (fr) * | 2017-10-16 | 2019-09-27 | Schneider Electric Industries Sas | Sectionneur d'alimentation electrique pour un module de protection et module de protection comportant un tel sectionneur |
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- 2009-08-11 JP JP2009186550A patent/JP5402378B2/ja active Active
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- 2010-06-09 EP EP10808058.1A patent/EP2466610A4/en not_active Withdrawn
- 2010-06-09 WO PCT/JP2010/003839 patent/WO2011018870A1/ja active Application Filing
- 2010-06-09 CN CN201080003399.9A patent/CN102232236B/zh active Active
- 2010-06-09 KR KR1020117011637A patent/KR101210736B1/ko active IP Right Grant
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JP2002208341A (ja) * | 2001-01-12 | 2002-07-26 | Fuji Electric Co Ltd | 回路しゃ断器における付属スイッチのスイッチカバー |
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CN106229237A (zh) * | 2016-09-26 | 2016-12-14 | 常熟开关制造有限公司(原常熟开关厂) | 低压塑壳断路器的脱扣装置 |
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KR20110073614A (ko) | 2011-06-29 |
CN102232236A (zh) | 2011-11-02 |
EP2466610A1 (en) | 2012-06-20 |
KR101210736B1 (ko) | 2012-12-11 |
EP2466610A4 (en) | 2014-03-19 |
CN102232236B (zh) | 2014-07-16 |
JP2011040274A (ja) | 2011-02-24 |
JP5402378B2 (ja) | 2014-01-29 |
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