JP2008123808A - Circuit breaker - Google Patents

Circuit breaker Download PDF

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JP2008123808A
JP2008123808A JP2006305662A JP2006305662A JP2008123808A JP 2008123808 A JP2008123808 A JP 2008123808A JP 2006305662 A JP2006305662 A JP 2006305662A JP 2006305662 A JP2006305662 A JP 2006305662A JP 2008123808 A JP2008123808 A JP 2008123808A
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circuit breaker
circuit board
printed circuit
circuit
test
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JP2006305662A
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JP4921931B2 (en
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Hiroaki Kato
裕明 加藤
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Kawamura Electric Inc
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Kawamura Electric Inc
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Priority to JP2006305662A priority Critical patent/JP4921931B2/en
Priority to CN2007101816479A priority patent/CN101183624B/en
Priority to KR1020070106814A priority patent/KR101102691B1/en
Publication of JP2008123808A publication Critical patent/JP2008123808A/en
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Publication of JP4921931B2 publication Critical patent/JP4921931B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a circuit breaker allowing to shorten wires among a printed circuit board, a test button and an electromagnetic tripping device, or eliminate them. <P>SOLUTION: The circuit breaker comprises a circuit breaker case 15 including a power supply side terminal 1 on the back surface and a load side terminal 2 on the front surface arranged in the vertical direction respectively; a test button 4 provided on the upper part of the circuit breaker case 15 and performing the operation test of a leakage detection circuit; a printed circuit board 10 to which the leakage detection circuit is attached to trip an electromagnetic tripping device 9 when a zero-phase current transformer 5 detects leakage of a current path. The printed circuit board 10 and the electromagnetic tripping device 9 for causing breaking operation of the circuit breaking mechanism part are arranged on the upper part of the circuit breaker case 15 and the printed circuit board 10 is arranged in parallel with the side of the circuit breaker case 15. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は回路遮断器に関し、特に漏電遮断機能を備えた回路遮断器に関する。   The present invention relates to a circuit breaker, and more particularly, to a circuit breaker having a leakage breaker function.

回路遮断器には、遮断対象の電路に短絡電流や定格値を越える電流が流れたら電路を遮断する短絡遮断機能及び過電流遮断機能を備えたもの、更には電路に漏電が発生したらそれを検知して遮断動作する漏電遮断機能を備えたものがある。このような回路遮断器において、漏電遮断機能を備えた回路遮断器には、漏電検出回路が正常に動作するかテストするためのテスト回路が設けられ、遮断器ケース上面に設けたテストボタンを操作して漏電遮断テストができるよう構成されている。   The circuit breaker has a short-circuit breaker function and an overcurrent breaker function that shuts off the circuit when a short-circuit current or a current exceeding the rated value flows in the circuit to be interrupted. Some of them have a function to cut off the earth leakage. In such a circuit breaker, a circuit breaker having a leakage breaker function is provided with a test circuit for testing whether the leakage detection circuit operates normally, and a test button provided on the upper surface of the breaker case is operated. Thus, it is configured to perform a ground fault interruption test.

漏電検出回路は、電路に設置された零相変流器により零相電流を検出し、検出した微弱な大きさの電流から漏電を判断するよう構成され、漏電が発生したら通常電磁引き外し装置を引き外し動作させる。そして、この漏電検出回路はプリント基板に組み付けて遮断器ケース内に収納された。また、テストボタンでオン／オフするスイッチは、単独のスイッチ部品を使用したものや、テスト回路と共にプリント基板に備えたものがあった（例えば、特許文献１参照）。
特開２００２−２１６６１２号公報 The leakage detection circuit is configured to detect a zero-phase current with a zero-phase current transformer installed in the circuit, and to determine the leakage from the detected weak current. Make the trip operation. And this earth-leakage detection circuit was assembled | attached to the printed circuit board, and was accommodated in the circuit breaker case. Some switches that are turned on / off by a test button use a single switch component, and some are provided on a printed circuit board together with a test circuit (for example, see Patent Document 1).
JP 2002-216612 A

しかしながら、上記従来の回路遮断器の場合、テストボタンはケース上面に配置されているが、プリント基板は遮断器ケース内の底部やケース側面に直交するよう配置されていたし、電磁引き外し装置はプリント基板から離れた位置に配置されていた。そのため、テストボタンとプリント基板、電磁引き外し装置とプリント基板の間にリード線による配線が必要であり、そのための配線スペースを確保しなければならなかった。回路遮断器の小型化、特に左右幅の薄型化を進める場合、この配線スペースの確保が問題となっていた。
そこで、本発明はこのような問題点に鑑み、プリント基板、テストボタン、電磁引き外し装置の間の配線を短く、或いは無くすことを可能とした回路遮断器を提供することを目的とする。 However, in the case of the above-mentioned conventional circuit breaker, the test button is arranged on the upper surface of the case, but the printed circuit board is arranged so as to be orthogonal to the bottom of the circuit breaker case and the side of the case, and the electromagnetic trip device is printed. It was arranged at a position away from the substrate. For this reason, wiring by lead wires is required between the test button and the printed circuit board, and between the electromagnetic trip device and the printed circuit board, and a wiring space for that purpose must be secured. In order to reduce the size of the circuit breaker, particularly to reduce the width of the left and right, securing the wiring space has been a problem.
In view of the above problems, the present invention has an object to provide a circuit breaker that can shorten or eliminate wiring between a printed circuit board, a test button, and an electromagnetic trip device.

上記課題を解決する為に、請求項１の発明に係る回路遮断器は、背面に複数の電源側端子、前面に複数の負荷側端子を夫々縦方向に配置し、上面に前記電源側端子と前記負荷側端子の間の電路に設けた開閉接点を開閉操作する操作ハンドルを配置した遮断器ケース内に、前記開閉接点を開操作する遮断機構部と、前記電路の漏電を検出する零相変流器と、前記遮断機構部を遮断動作させる電磁引き外し装置と、漏電の検出を受けて前記電磁引き外し装置を引き外し動作させる漏電検出回路を組み付けたプリント基板とを備える一方、前記遮断器ケース上部に前記漏電検出回路の動作テストを行うテストボタンを備えた回路遮断器において、前記プリント基板に前記テストボタンの操作を受けて擬似漏電電流を発生させるためのテストスイッチを組み付け、当該テストスイッチを備えたプリント基板及び前記電磁引き外し装置を遮断器ケースの上部に配置すると共に、前記プリント基板を遮断器ケース側面に略並行に配置したことを特徴とする。
この構成によれば、遮断器ケース上面にテストボタンを配置した構成において、テストスイッチをテストボタンの近くに配置したプリント基板上に配置することで、テストボタン自体の構成を省スペースに形成できるし、テストスイッチとプリント基板間に配線の必要が無くなる。また、電磁引き外し装置をプリント基板近傍に配置することで、プリント基板との配線を短く、更には無くすことも可能となるし、プリント基板をケース側面に略並行に配置することで、回路遮断器の薄型化を効果的に進めることができる。 In order to solve the above-mentioned problem, a circuit breaker according to the invention of claim 1 is provided with a plurality of power supply side terminals on the back surface and a plurality of load side terminals on the front surface in the vertical direction, and the power supply side terminals on the top surface. In a circuit breaker case provided with an operation handle for opening / closing an opening / closing contact provided on an electric circuit between the load side terminals, a breaking mechanism for opening / closing the opening / closing contact, and a zero phase change detecting a leakage of the electric circuit A breaker, an electromagnetic trip device that cuts off the cut-off mechanism, and a printed circuit board that is assembled with a leakage detection circuit that receives the detection of a leak and trips the electromagnetic trip device. In a circuit breaker provided with a test button for performing an operation test of the leakage detection circuit on an upper part of a case, a test switch for generating a pseudo leakage current upon operation of the test button on the printed circuit board Assembling, with disposing the printed circuit board and the electromagnetic trip device with the test switch on the top of the circuit breaker casing, characterized by being arranged substantially parallel to the circuit breaker case side of the printed circuit board.
According to this configuration, in the configuration in which the test button is arranged on the upper surface of the circuit breaker case, the test button itself can be formed in a space-saving manner by arranging the test switch on the printed circuit board arranged near the test button. This eliminates the need for wiring between the test switch and the printed circuit board. In addition, by arranging the electromagnetic trip device in the vicinity of the printed circuit board, it is possible to shorten the wiring with the printed circuit board and to eliminate it, and by arranging the printed circuit board substantially parallel to the side of the case, the circuit is interrupted. The thickness of the vessel can be effectively reduced.

請求項２の発明は、請求項１に記載の発明において、電磁引き外し装置はプリント基板に隣接する下部に、プランジャを前後方向に向けて配置したことを特徴とする。
この構成により、電磁引き外し装置をプリント基板に直接接続でき、互いの間の配線を無くすことができる。 According to a second aspect of the present invention, in the first aspect of the present invention, the electromagnetic trip device is characterized in that a plunger is arranged in the lower part adjacent to the printed circuit board in the front-rear direction.
With this configuration, the electromagnetic trip device can be directly connected to the printed circuit board, and wiring between each other can be eliminated.

本発明によれば、遮断器ケース上面にテストボタンを配置した構成において、テストスイッチをテストボタンの近くに配置したプリント基板上に配置することで、テストボタン自体の構成を省スペースに形成できるし、テストスイッチとプリント基板間に配線の必要が無くなる。また、電磁引き外し装置をプリント基板近傍に配置することで、プリント基板との配線を短く、更には無くすことも可能となるし、プリント基板をケース側面に略並行に配置することで、回路遮断器の薄型化を効果的に進めることができる。   According to the present invention, in the configuration in which the test button is arranged on the upper surface of the circuit breaker case, the configuration of the test button itself can be formed in a space-saving manner by arranging the test switch on the printed circuit board arranged near the test button. This eliminates the need for wiring between the test switch and the printed circuit board. In addition, by arranging the electromagnetic trip device in the vicinity of the printed circuit board, it is possible to shorten the wiring with the printed circuit board and to eliminate it, and by arranging the printed circuit board substantially parallel to the side of the case, the circuit is interrupted. The thickness of the vessel can be effectively reduced.

以下、本発明を具体化した実施の形態を、図面に基づいて詳細に説明する。図１〜図３は、本発明に係る回路遮断器の一例を示し、図１は斜視図、図２は図１の右側面図、図３はテストボタンを押した状態の側面図である。何れも遮断器オン状態で右ケースを外した内部構成を示している。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. 1 to 3 show an example of a circuit breaker according to the present invention, FIG. 1 is a perspective view, FIG. 2 is a right side view of FIG. 1, and FIG. 3 is a side view of a state where a test button is pushed. Both show the internal configuration with the right case removed when the circuit breaker is on.

各図において、１（１ａ，１ｂ，１ｃ）は電源側端子、２（２ａ，２ｂ，２ｃ）は負荷側端子であり、電源側端子１及び負荷側端子２は、縦に一直線上に３端子が整列配置され、単相３線式電路に使用される回路遮断器を示している。そして、３は電源側端子１から負荷側端子２に至る電路をオン／オフ操作する操作ハンドル、４は漏電遮断回路の動作テストを行うテストボタン、５は漏電を検出するための零相変流器、６は開閉接点７を開動作させて電路を遮断るためのセパレータ、８はラッチ機構を備えて漏電や過電流等の電路異常が発生した際にセパレータ６をスライドさせて開閉接点７を開動作（遮断動作）させる開閉機構部、９は電磁引き外し装置、１０は漏電が発生したら電磁引き外し装置９を引き外し動作させる漏電検出回路を組み付けたプリント基板、１２は過電流を検知するバイメタル片、１３は短絡を検知する可動電磁片、１４はバイメタル片１２、可動電磁片１３、更には電磁引き外し装置９の動作を受けて開閉機構部８を遮断動作させる引き外し板である。   In each figure, 1 (1a, 1b, 1c) is a power supply side terminal, 2 (2a, 2b, 2c) is a load side terminal, and the power supply side terminal 1 and the load side terminal 2 are 3 terminals on a straight line. Shows a circuit breaker used in a single-phase three-wire circuit. 3 is an operation handle for turning on / off an electric circuit from the power supply side terminal 1 to the load side terminal 2, 4 is a test button for performing an operation test of the leakage breaker circuit, and 5 is a zero-phase current transformer for detecting leakage. 6 is a separator for opening the switching contact 7 to cut off the electric circuit, and 8 is provided with a latch mechanism, and when the electric circuit abnormality such as leakage or overcurrent occurs, the separator 6 is slid to open the switching contact 7. Opening / closing mechanism (opening / closing operation) opening / closing mechanism, 9 is an electromagnetic trip device, 10 is a printed circuit board with a leakage detection circuit that trips and operates the electromagnetic trip device 9 when a leakage occurs, and 12 detects an overcurrent. Bimetal piece 13 is a movable electromagnetic piece for detecting a short circuit, 14 is a bimetal piece 12, a movable electromagnetic piece 13, and a tripping plate that cuts off the opening / closing mechanism 8 in response to the operation of the electromagnetic trip device 9. A.

また、図１に示すように、遮断器ケース１５は、左ケース１５ａと、この左ケース１５ａとほぼ対称に形成された右ケース（図示せず）とで構成され、負荷側端子２を設けた前面は僅かに上方に傾斜形成されている。   Moreover, as shown in FIG. 1, the circuit breaker case 15 is comprised by the left case 15a and the right case (not shown) formed substantially symmetrically with this left case 15a, and provided the load side terminal 2. The front surface is inclined slightly upward.

尚、開閉接点７を遮断動作させる遮断機構部は、セパレータ６、開閉機構部８、引き外し板１４等で構成されている。また、図１において中央の負荷側端子２（２ｂ）は閉塞部材１６により閉塞された状態を示しているが、このように使用しない端子は施蓋され塵等が侵入しないよう構成されている。また、プリント基板１０に搭載されている素子及び配線（電源及び零相変流器の配線）は省略してある。   In addition, the interruption | blocking mechanism part which carries out interruption | blocking operation | movement of the switching contact 7 is comprised by the separator 6, the opening / closing mechanism part 8, the tripping plate 14, etc. FIG. Further, in FIG. 1, the load side terminal 2 (2b) in the center is shown in a state of being closed by the closing member 16, but the terminals not used in this way are covered so that dust and the like do not enter. Further, elements and wiring (power supply and zero-phase current transformer wiring) mounted on the printed circuit board 10 are omitted.

図４は上記回路遮断器の回路図を示している。この回路図に示すように、単相３線式の電路１７には開閉接点７が設けられる。１８は漏電遮断回路をテストするテスト回路、１９はテストボタン４で操作させるスイッチであり、プリント基板１０に漏電検出回路、テスト回路１８が組み付けられている。尚、２０は零相変流器５で検出した電路１７の零相電流値から漏電を判定するＩＣ化された漏電判定回路である。   FIG. 4 shows a circuit diagram of the circuit breaker. As shown in this circuit diagram, a switching contact 7 is provided on a single-phase three-wire electric circuit 17. Reference numeral 18 denotes a test circuit for testing the leakage breaker circuit, and 19 denotes a switch operated by the test button 4. The leakage detection circuit and the test circuit 18 are assembled on the printed circuit board 10. Reference numeral 20 denotes an IC leakage determination circuit that determines leakage from the zero-phase current value of the electric circuit 17 detected by the zero-phase current transformer 5.

電源側端子１は、上から中性極端子１ａ、電圧極端子１ｂ，電圧極端子１ｃと配置され、略Ｃ字状の端子金具２２を有し、分電盤内に配設された導体バー（図示せず）を挿入するだけで接続されるプラグイン式の端子として形成されている。そして、バイメタル片１２及び可動電磁片１３が端子金具２２を延設して取り付けられている。   The power supply side terminal 1 is arranged from the top as a neutral electrode terminal 1a, a voltage electrode terminal 1b, and a voltage electrode terminal 1c, has a substantially C-shaped terminal fitting 22, and is a conductor bar arranged in a distribution board. It is formed as a plug-in type terminal connected by simply inserting (not shown). The bimetal piece 12 and the movable electromagnetic piece 13 are attached with the terminal fitting 22 extended.

負荷側端子２は、上から電圧極端子２ａ、中性極端子２ｂ、電圧極端子２ｃの順で配置され、各端子に設けられた端子金具２５は、挿入した電線（図示せず）を係止して電気的な接続が成されるよう形成され、負荷側端子３は速結端子として形成されている。また、各端子金具２５には開閉接点７の一方を構成する固定接点７ａを備えている。
尚、２６は解除レバーであり、挿入した電線を抜き取る際に端子金具２５の係止を解除させる。 The load-side terminal 2 is arranged from the top in the order of the voltage electrode terminal 2a, the neutral electrode terminal 2b, and the voltage electrode terminal 2c, and the terminal fitting 25 provided at each terminal is connected to an inserted electric wire (not shown). The load side terminal 3 is formed as a quick connection terminal. Each terminal fitting 25 is provided with a fixed contact 7 a constituting one of the switching contacts 7.
Reference numeral 26 denotes a release lever, which releases the locking of the terminal fitting 25 when the inserted electric wire is pulled out.

セパレータ６は筒状に形成され、負荷側端子２を備えた前面に平行に設置されている。このセパレータ６は、個々の負荷側端子３ａ，３ｂ，３ｃから延設された固定接点７ａを収容すると共に、この固定接点７ａに合わせて３つの可動接点７ｂが内部に設けられ、自身の長手方向にスライドすることで双方の接点が接触／解離動作し、オン／オフ動作する。そして、開閉機構部８がセパレータ６の上部に一体に形成されている。この開閉機構部８は、引き外し板１４の係合作動により内部ラッチ機構がラッチ解除動作することで、セパレータ６をスライドさせて開閉接点７を解離させ、遮断動作させる（詳述せず）。   The separator 6 is formed in a cylindrical shape and is installed in parallel to the front surface provided with the load side terminal 2. The separator 6 accommodates fixed contacts 7a extending from the individual load side terminals 3a, 3b, 3c, and three movable contacts 7b are provided inside according to the fixed contacts 7a. The two contacts are brought into contact / dissociation operation and turned on / off. An opening / closing mechanism 8 is integrally formed on the separator 6. In the opening / closing mechanism 8, the internal latch mechanism performs a latch releasing operation by the engagement operation of the tripping plate 14, thereby causing the separator 6 to slide to disengage the opening / closing contact 7 and perform a blocking operation (not described in detail).

そして、操作ハンドル３近傍から背部に至る遮断器ケース１５の上部にプリント基板１０が設置され、遮断器ケース１５の側面に並行に配置されている。また、電磁引き外し装置９はその下部に隣接して配置され、前後方向にプランジャを向けて設置されている。
プリント基板１０は、前方側端部にテスト回路１８及びスイッチ１９が組み付けられ、下部には電磁引き外し装置９のコイルを接続する接続端子が設けられ（図示せず）、電磁引き外し装置９はプリント基板１０にコイルが接続されて一体化されている。スイッチ１９は、プリント基板１０から突出させた突起状接点２８と、一端がプリント基板１０に電気的に接続された接点部材２９で構成され、接点部材２９はプリント基板１０から前方に伸び、略Ｕ字状に上方に折り返して先端が突起状接点２８に接触可能に配置され、弾性を有して形成されている。 And the printed circuit board 10 is installed in the upper part of the circuit breaker case 15 from the operation handle 3 vicinity to a back part, and is arrange | positioned in parallel with the side surface of the circuit breaker case 15. FIG. Further, the electromagnetic trip device 9 is disposed adjacent to the lower portion thereof, and is installed with the plunger directed in the front-rear direction.
The printed circuit board 10 is assembled with a test circuit 18 and a switch 19 at the front end, and a connection terminal (not shown) for connecting a coil of the electromagnetic trip device 9 is provided at the lower portion. A coil is connected to the printed circuit board 10 to be integrated. The switch 19 includes a protruding contact 28 projecting from the printed circuit board 10 and a contact member 29 having one end electrically connected to the printed circuit board 10. The contact member 29 extends forward from the printed circuit board 10 and has a substantially U shape. The tip is folded upward in a letter shape so that the tip can come into contact with the protruding contact 28 and is formed with elasticity.

テストボタン４は、この接点部材２９の折り曲げた直後に下部が当接するよう配置され、テストボタン４を僅かに押下することで、接点部材２９の先端は下方に大きく移動し、突起状接点２８に当接する。図３は、このテストボタン４を押下した状態を示している。テストボタン４が僅かに押下されることで、ピン状接点部材２９の先端が突起状接点２８の側部に接触してスイッチ１９がオン操作され、テスト回路１８に擬似漏電電流が流れる。   The test button 4 is arranged so that the lower part abuts immediately after the contact member 29 is bent. By slightly pressing the test button 4, the tip of the contact member 29 moves greatly downward to the protruding contact 28. Abut. FIG. 3 shows a state where the test button 4 is pressed. When the test button 4 is slightly pressed, the tip of the pin-shaped contact member 29 comes into contact with the side of the protruding contact 28 and the switch 19 is turned on, and a pseudo-leakage current flows through the test circuit 18.

以上の構成により、漏電が発生したら、電磁引き外し装置９が引き外し動作して引き外し板１４を上方へスライドさせ、開閉機構部８、セパレータ６が順次動作して遮断動作する。また、過電流の発生を受けてバイメタル片１２が変形して同様に遮断動作する。更に、短絡電流が発生したら可動電磁片１３が動作して同様に遮断動作する。   With the above configuration, when leakage occurs, the electromagnetic trip device 9 performs a trip operation to slide the trip plate 14 upward, and the opening / closing mechanism 8 and the separator 6 are sequentially operated to perform a cut-off operation. In addition, the bimetal piece 12 is deformed in response to the occurrence of an overcurrent, and similarly performs a blocking operation. Further, when a short-circuit current is generated, the movable electromagnetic piece 13 is operated and similarly cut off.

このように、遮断器ケース上面にテストボタンを配置し、テストスイッチ及び漏電検出回路がテストボタン近傍に配置されるので、配線距離が僅かで済むし、テストボタンの配置空間も省スペースにできる。また、電磁引き外し装置をプリント基板近傍に配置することで、プリント基板との配線を短く、更には無くすことも可能となる。また、プリント基板をケース側面に略並行に配置することで、回路遮断器の薄型化を効果的に進めることができる。
また、電磁引き外し装置をプリント基板に隣接させて並行に配置して、プリント基板に直づけすることで、互いの配線を無くすことができる。 In this way, the test button is arranged on the upper surface of the circuit breaker case, and the test switch and the leakage detection circuit are arranged in the vicinity of the test button. Therefore, the wiring distance is short, and the space for arranging the test button can be saved. Further, by arranging the electromagnetic trip device near the printed circuit board, the wiring with the printed circuit board can be shortened and further eliminated. Further, by arranging the printed circuit board on the side surface of the case substantially in parallel, the circuit breaker can be effectively reduced in thickness.
Further, by arranging the electromagnetic trip device adjacent to the printed circuit board in parallel and directly attaching to the printed circuit board, mutual wiring can be eliminated.

尚、上記実施形態では、過電流遮断機構を備えた回路遮断器を説明したが、少なくとも漏電遮断機構を備えた回路遮断器に対して適用できる。また、単相３線式電路の回路遮断器について説明したが、単相２線式電路や三相電路に使用する回路遮断器に対しても、本発明の構成は容易に適用できる。   In addition, although the circuit breaker provided with the overcurrent interruption mechanism has been described in the above embodiment, it can be applied to at least a circuit breaker provided with an earth leakage interruption mechanism. Moreover, although the circuit breaker of the single-phase three-wire circuit has been described, the configuration of the present invention can be easily applied to a circuit breaker used for a single-phase two-wire circuit or a three-phase circuit.

本発明に係る回路遮断器の実施形態の一例を示す斜視図であり、遮断器オン状態で右ケースを外した図である。It is a perspective view which shows an example of embodiment of the circuit breaker concerning this invention, and is the figure which removed the right case in the circuit breaker ON state. 図１の回路遮断器の右側面図である。It is a right view of the circuit breaker of FIG. 図１の回路遮断器において、テストボタンを押した状態の側面図である。FIG. 2 is a side view of the circuit breaker of FIG. 1 in a state where a test button is pushed. 図１の回路遮断器の回路図である。It is a circuit diagram of the circuit breaker of FIG.

符号の説明Explanation of symbols

１・・電源側端子、２・・負荷側端子、３・・操作ハンドル、４・・テストボタン、７・・開閉接点、８・・開閉機構部、９・・電磁引き外し装置、１０・・プリント基板、１５・・遮断器ケース、１７・・電路、１８・・テスト回路、１９・・テストスイッチ。   1 .... Power supply side terminal 2 .... Load side terminal 3 .... Operating handle 4 .... Test button 7 .... Open / close contact point 8 .... Opening / closing mechanism part 9 .... Electromagnetic trip device 10 .... Printed circuit board, 15 ... Circuit breaker case, 17 ... Electric circuit, 18 ... Test circuit, 19 ... Test switch.

Claims (2)

背面に複数の電源側端子、前面に複数の負荷側端子を夫々縦方向に配置し、上面に前記電源側端子と前記負荷側端子の間の電路に設けた開閉接点を開閉操作する操作ハンドルを配置した遮断器ケース内に、前記開閉接点を開操作する遮断機構部と、前記電路の漏電を検出する零相変流器と、前記遮断機構部を遮断動作させる電磁引き外し装置と、漏電の検出を受けて前記電磁引き外し装置を引き外し動作させる漏電検出回路を組み付けたプリント基板とを備える一方、前記遮断器ケース上部に前記漏電検出回路の動作テストを行うテストボタンを備えた回路遮断器において、
前記プリント基板に前記テストボタンの操作を受けて擬似漏電電流を発生させるためのテストスイッチを組み付け、当該テストスイッチを備えたプリント基板及び前記電磁引き外し装置を遮断器ケースの上部に配置すると共に、前記プリント基板を遮断器ケース側面に略並行に配置したことを特徴とする回路遮断器。 A plurality of power supply side terminals on the back and a plurality of load side terminals on the front are arranged vertically, and an operation handle for opening and closing a switching contact provided on an electric circuit between the power supply side terminal and the load side terminal is provided on the top surface. In the arranged circuit breaker case, a breaking mechanism for opening the switching contact, a zero-phase current transformer for detecting leakage of the electric circuit, an electromagnetic trip device for breaking the breaking mechanism, and a leakage current A circuit breaker having a test button for performing an operation test of the leakage detection circuit on an upper portion of the breaker case, the printed circuit board having a leakage detection circuit assembled to cause the electromagnetic trip device to be tripped by receiving the detection In
Assembling a test switch for generating a pseudo-leakage current in response to the operation of the test button on the printed circuit board, and arranging the printed circuit board provided with the test switch and the electromagnetic trip device on the upper part of the circuit breaker case, A circuit breaker, wherein the printed circuit board is disposed substantially in parallel with a side surface of the breaker case. 電磁引き外し装置はプリント基板に隣接する下部に、プランジャを前後方向に向けて配置した請求項１記載の回路遮断器。 2. The circuit breaker according to claim 1, wherein the electromagnetic trip device has a plunger disposed in a lower portion adjacent to the printed circuit board in a front-rear direction.
JP2006305662A 2006-11-10 2006-11-10 Circuit breaker Active JP4921931B2 (en)

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CN2007101816479A CN101183624B (en) 2006-11-10 2007-10-22 Circuit breaker
KR1020070106814A KR101102691B1 (en) 2006-11-10 2007-10-23 Circuit Breaker

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JP2017154088A (en) * 2016-03-02 2017-09-07 大見工業株式会社 Controller of electrostatic dust collector

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CN102194619B (en) * 2010-03-16 2014-08-13 施耐德电器工业公司 Test device for circuit breaker and circuit breaker with test device
CN112164629B (en) * 2020-09-25 2023-05-12 湖南瑞智电气科技有限公司 Grounding circuit breaker

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JPH0652780A (en) * 1992-07-30 1994-02-25 Matsushita Electric Works Ltd Circuit breaker
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JP4921931B2 (en) 2012-04-25
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