JP4232569B2 - Earth leakage display device for earth leakage breaker - Google Patents

Earth leakage display device for earth leakage breaker Download PDF

Info

Publication number
JP4232569B2
JP4232569B2 JP2003280094A JP2003280094A JP4232569B2 JP 4232569 B2 JP4232569 B2 JP 4232569B2 JP 2003280094 A JP2003280094 A JP 2003280094A JP 2003280094 A JP2003280094 A JP 2003280094A JP 4232569 B2 JP4232569 B2 JP 4232569B2
Authority
JP
Japan
Prior art keywords
earth leakage
display button
circuit breaker
opening
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003280094A
Other languages
Japanese (ja)
Other versions
JP2005044734A (en
Inventor
孝 北村
宏文 石黒
雅彦 岡野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Electric Works Co Ltd
Original Assignee
Panasonic Corp
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Works Ltd filed Critical Panasonic Corp
Priority to JP2003280094A priority Critical patent/JP4232569B2/en
Priority to CNB2004100713556A priority patent/CN100339927C/en
Publication of JP2005044734A publication Critical patent/JP2005044734A/en
Application granted granted Critical
Publication of JP4232569B2 publication Critical patent/JP4232569B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Breakers (AREA)

Description

本発明は、漏電発生時に漏電表示ボタンが移動して漏電表示を行う漏電遮断器の漏電表示装置に関するものである。   The present invention relates to an earth leakage display device for an earth leakage breaker in which an earth leakage display button moves and displays an earth leakage when an electric leakage occurs.

従来例として特許文献１に示すものが存在する。このものは、漏電表示ボタンがコイル枠の側面に位置したものであり、コイル枠を遮断器ケースの上下面方向を貫通孔方向として遮断器ケース内に配設し、プランジャをコイル枠の貫通孔に配設してコイルの通電時に遮断器ケースの上面側に移動させるようにし、このプランジャの移動により、コイル枠の側面に位置して予め遮断器ケースから突出する方向にばね付勢された漏電表示ボタンが、係止状態から解除されて移動することにより漏電表示を行うものである。   There exists what is shown in patent document 1 as a prior art example. In this case, the earth leakage display button is located on the side surface of the coil frame, the coil frame is disposed in the circuit breaker case with the upper and lower surface direction of the circuit breaker case as the through hole direction, and the plunger is disposed in the through hole of the coil frame. When the coil is energized, it is moved to the upper surface side of the circuit breaker case, and this plunger movement is located on the side surface of the coil frame and is spring-biased in the direction protruding from the circuit breaker case in advance. When the display button is released from the locked state and moves, an electric leakage display is performed.

しかしながら、この場合、コイル枠の側面に漏電表示ボタンが位置しているので、コイル枠の厚み（幅）と漏電表示ボタンの厚み（幅）とで遮断器ケースのスペースを取ってしまい、遮断器ケースのスペースを有効利用することができず、コンパクト化が図れないという問題があった。
特開平6−52784号公報 However, in this case, since the earth leakage display button is located on the side surface of the coil frame, the thickness (width) of the coil frame and the thickness (width) of the earth leakage display button take up space in the circuit breaker case. There was a problem that the space of the case could not be used effectively, and the size reduction could not be achieved.
JP-A-6-52784

本願発明は、上記背景技術に鑑みて発明されたものであり、その課題は、遮断器ケースのスペースを有効利用することができ、コンパクト化が図れる漏電遮断器の漏電表示装置を提供することにある。   This invention is invented in view of the said background art, The subject is to provide the earth-leakage display apparatus of the earth-leakage circuit breaker which can utilize the space of a circuit breaker case effectively, and can achieve compactization. is there.

この発明の漏電遮断器の漏電表示装置は、表示ボタン用開口を有する遮断器ケース内の前記表示ボタン用開口の内側に配設される漏電遮断器の漏電表示装置であって、前記表示ボタン用開口の方向を軸方向として漏電発生時に通電されるコイルを外周に巻装し前記軸方向に貫通孔を形成したコイル枠を有し、前記コイル枠の前記貫通孔に進退自在に配設されて前記コイルの通電により前記表示ボタン用開口側に駆動されるプランジャを有する電磁石装置と、前記プランジャよりも前記表示ボタン用開口側で前記貫通孔に臨み前記プランジャが前記表示ボタン用開口側に移動した際に前記プランジャに押圧されて前記表示ボタン用開口から前記遮断器ケースの外方に突出する漏電表示ボタンとを備え、
前記コイルが非通電状態で前記漏電表示ボタンを前記遮断器ケースから外方へ突出しない通常位置と、前記コイルが通電状態で前記漏電表示ボタンを前記遮断器ケースから突出する漏電表示位置とにそれぞれ保持する保持手段を設け、
前記漏電表示ボタンに前記遮断器ケースの内方向へ延出して前記コイル枠の側面に位置する脚部を設けるとともに、前記コイル枠に前記遮断器ケースの前記表示ボタン用開口の方向へ延出して前記コイル枠の側面に取着される位置決めばねを設け、
前記保持手段は、前記脚部に前記遮断器ケースの開口方向へ並設されかつ前記位置決めばね側へ開口した２つの凹所と、前記位置決めばねに前記脚部に向けて突出形成されて前記コイルが非通電状態で前記漏電表示ボタンを前記遮断器ケースから外方へ突出させない通常位置で前記２つの凹所の一方に弾性係合し、かつ前記コイルが通電状態で前記漏電表示ボタンを前記遮断器ケースから突出させた漏電表示位置で前記２つの凹所の他方に弾性係合する１つの係合突起とで構成されたものである。 An earth leakage display device for an earth leakage breaker according to the present invention is an earth leakage display device for an earth leakage breaker disposed inside the display button opening in a circuit breaker case having an opening for a display button. A coil frame having a through-hole formed in the axial direction with a coil energized at the time of leakage occurring around the outer periphery with the direction of the opening as an axial direction, and is disposed in the through-hole of the coil frame so as to freely advance and retract. An electromagnet device having a plunger driven on the display button opening side by energization of the coil, and the plunger moved to the display button opening side facing the through hole on the display button opening side than the plunger. A leakage indicator button that is pressed by the plunger and protrudes outward from the breaker case from the display button opening,
A normal position where the earth leakage display button does not protrude outward from the circuit breaker case when the coil is not energized, and an earth leakage display position where the earth leakage display button protrudes from the circuit breaker case while the coil is energized, respectively. Providing holding means for holding;
The earth leakage display button is provided with legs that extend inward of the circuit breaker case and are positioned on the side surfaces of the coil frame, and the coil frame extends in the direction of the display button opening of the circuit breaker case. A positioning spring attached to a side surface of the coil frame;
The holding means includes two recesses provided in parallel to the leg portion in the opening direction of the circuit breaker case and opened toward the positioning spring, and the positioning spring is formed to project toward the leg portion. Is in a non-energized state and is elastically engaged with one of the two recesses at a normal position where it does not project outward from the circuit breaker case, and the leakage indicator button is cut off when the coil is energized. And an engaging projection that elastically engages with the other of the two recesses at a leakage display position protruding from the case .

上記構成において、前記コイル枠の前記表示ボタン用開口側に、接触時に前記コイルを通電させるテスト可動接点板及びテスト固定接点を設けている。   The said structure WHEREIN: The test movable contact plate and test fixed contact which energize the said coil at the time of a contact are provided in the said display button opening side of the said coil frame.

この発明の漏電遮断器の漏電表示装置によれば、コイル枠の貫通孔方向を遮断器ケースの表示ボタン用開口の方向として電磁石装置を配設し、コイル枠の貫通孔に進退自在に配設されたプランジャよりも開口側でコイル枠の貫通孔に漏電表示ボタンが臨んでいるので、漏電表示装置を遮断器ケース内にコンパクトに収納することができ、遮断器ケース内のスペースを有効利用することができる。   According to the earth leakage display device of the earth leakage breaker according to the present invention, the electromagnet device is arranged such that the direction of the through hole of the coil frame is the direction of the display button opening of the circuit breaker case, and is disposed in the through hole of the coil frame so as to freely advance and retract. Since the earth leakage display button faces the through hole of the coil frame on the opening side of the opened plunger, the earth leakage display device can be stored compactly in the circuit breaker case, and the space in the circuit breaker case is effectively used be able to.

また、漏電テストを行う部材を、漏電表示装置以外の他の部材に取着する必要がなく、またコイル枠の側面にも取着する必要がないので、更に遮断器ケース内のスペースを有効利用することができる。   In addition, it is not necessary to attach the member to be tested for earth leakage test to other members other than the earth leakage display device, and it is not necessary to attach it to the side of the coil frame. can do.

保持手段により、漏電表示ボタンが不用意に移動してしまう恐れがなくなる。つまり通常状態では遮断器ケースの上面から突出しない通常位置に保持され、コイルが通電されてプランジャが移動した後、プランジャが元の位置に戻っても漏電表示ボタンが遮断器ケースの上面から突出した漏電表示位置に保持される。   Due to the holding means, there is no possibility of the earth leakage display button moving carelessly. In other words, in a normal state, it is held in a normal position that does not protrude from the upper surface of the circuit breaker case, and after the coil is energized and the plunger moves, the leakage indicator button protrudes from the upper surface of the circuit breaker case even if the plunger returns to the original position. It is held at the earth leakage display position.

漏電表示ボタンに脚部を設けるとともにコイル枠の側面に位置決めばねを取着し、保持手段を、漏電表示ボタンの脚部の凹所と位置決めばねの係合突起とで構成しているので、位置決めばねの係合突起を漏電表示ボタンの凹所に係合させれば漏電表示ボタンをコイル枠に取着した状態に組込むことができ、遮断器ケース内への漏電表示装置の組込作業が容易となる。 And attaching a positioning spring with the side surface of the coil frame provided leg leakage display button, the holding means, since the arrangement in the recesses of the legs of the leakage indication button with the engaging projection of the positioning springs, positioning By engaging the spring engagement protrusion with the recess of the earth leakage display button, the earth leakage display button can be assembled with the coil frame attached, making it easy to install the earth leakage display device in the circuit breaker case. It becomes.

この発明の一実施の形態を図１から図６により説明する。すなわち、この漏電遮断器の漏電表示装置は、遮断器ケース１内に配設されるものであって、電磁石装置６と、漏電表示ボタン４０とを有する。   An embodiment of the present invention will be described with reference to FIGS. That is, the earth leakage display device of the earth leakage breaker is disposed in the circuit breaker case 1 and includes the electromagnet device 6 and the earth leakage display button 40.

遮断器ケース１は表示ボタン用開口１９を有する。実施の形態の遮断器ケース１に組み込まれる漏電遮断器は２極型の漏電遮断器であり、遮断器ケース１の下面にＤＩＮ規格に規格化されたレールに取付けるための係止部８を設け、長手方向の両端に端子９、１０、９ａ、１０ａを設けている。遮断器ケース１の上面のほぼ中央位置にハンドル用開口１７を形成し、一側部にテストボタン用開口１８を形成し、開口１８に隣接して表示ボタン用開口１９を形成している。   The circuit breaker case 1 has a display button opening 19. The earth leakage circuit breaker incorporated in the circuit breaker case 1 of the embodiment is a two-pole type earth leakage circuit breaker, and the lower surface of the circuit breaker case 1 is provided with a locking portion 8 for mounting on a rail standardized to the DIN standard. Terminals 9, 10, 9a and 10a are provided at both ends in the longitudinal direction. A handle opening 17 is formed at a substantially central position on the upper surface of the circuit breaker case 1, a test button opening 18 is formed on one side, and a display button opening 19 is formed adjacent to the opening 18.

電磁石装置６は、遮断器ケース１内の表示ボタン用開口１９の内側に配設されている。電磁石装置６は表示ボタン用開口１９の方向すなわち図で上下面方向を軸方向として漏電発生時に通電されるコイル６０を外周に巻装し軸方向に貫通孔（図示せず）を形成したコイル枠６１を有する。またコイル枠６１の貫通孔に進退自在に配設されてコイル６０の通電により表示ボタン用開口１９側すなわち図で上面側に駆動されるプランジャ２０を有する。６７はコイル枠６１の側部より両端にまたがって装着されるコ字形のヨークである。   The electromagnet device 6 is disposed inside the display button opening 19 in the circuit breaker case 1. The electromagnet device 6 is a coil frame in which a coil 60 to be energized at the time of occurrence of electric leakage is wound around the outer periphery with the direction of the display button opening 19, that is, the upper and lower surfaces in the drawing as an axial direction, and a through hole (not shown) is formed in the axial direction 61. Further, it has a plunger 20 which is disposed in the through hole of the coil frame 61 so as to be able to advance and retreat, and is driven to the display button opening 19 side, that is, the upper surface side in the drawing when the coil 60 is energized. Reference numeral 67 denotes a U-shaped yoke that is mounted across the both ends from the side of the coil frame 61.

漏電表示ボタン４０は、プランジャ２０よりも表示ボタン用開口１９側で貫通孔に臨み、プランジャ２０が表示ボタン用開口１９側に移動した際にプランジャ２０に押圧されて、表示ボタン用開口１９から遮断器ケース１の外方に突出する。   The earth leakage display button 40 faces the through-hole on the display button opening 19 side than the plunger 20, and is pressed by the plunger 20 when the plunger 20 moves to the display button opening 19 side, and is cut off from the display button opening 19. Projects outward from the container case 1.

保持手段６４は、コイル６０が非通電状態で漏電表示ボタン４０を遮断器ケース１から外方へ突出しない通常位置と、コイル６０が通電状態で漏電表示ボタン４０を遮断器ケース１から突出する漏電表示位置とにそれぞれ保持するもので、例えば漏電表示ボタン４０およびコイル枠６１に互いに係合するように構成する。実施の形態では漏電表示ボタン４０に遮断器ケース１の内方向へ延出してコイル枠６１の側面に位置する脚部６２を設けるとともに、コイル枠６１に遮断器ケース１の表示ボタン用開口１９の方向へ延出してコイル枠６１の側面に取着される例えば板ばねを用いた位置決めばね６３を設けている。脚部６２には遮断器ケース１の開口方向へ並設されかつ位置決めばね６３側へ開口した２つの凹所６２ａ、６２ｂを形成している。脚部６２からコイル６０の周方向に略Ｌ字形の復帰片６８を延出し、後述のハンドル２のオン操作に連動して、漏電表示ボタン４０を漏電表示位置から通常位置へ移動させる。   The holding means 64 includes a normal position where the leakage current display button 40 does not protrude outward from the circuit breaker case 1 when the coil 60 is in a non-energized state, and a leakage current where the leakage current display button 40 protrudes from the breaker case 1 while the coil 60 is energized. Each is held at a display position, and is configured to engage with the earth leakage display button 40 and the coil frame 61, for example. In the embodiment, the earth leakage display button 40 is provided with a leg 62 that extends inward of the circuit breaker case 1 and is positioned on the side surface of the coil frame 61, and the coil button 61 has the display button opening 19 of the circuit breaker case 1. A positioning spring 63 using, for example, a leaf spring is provided that extends in the direction and is attached to the side surface of the coil frame 61. The leg portion 62 is formed with two recesses 62a and 62b that are juxtaposed in the opening direction of the circuit breaker case 1 and open to the positioning spring 63 side. A substantially L-shaped return piece 68 is extended from the leg portion 62 in the circumferential direction of the coil 60, and the earth leakage display button 40 is moved from the earth leakage display position to the normal position in conjunction with an ON operation of the handle 2 described later.

位置決めばね６３には脚部６２に向けて突出形成されてコイル６０が非通電状態で漏電表示ボタン４０を遮断器ケース１から外方へ突出しない通常位置（図１）で２つの凹所の一方６２ａに弾性係合し、かつコイル６０が通電状態で漏電表示ボタン４０を遮断器ケース１から突出した漏電表示位置（図６）で２つの凹所の他方６２ｂに弾性係合する１つの係合突起６５を折曲により設けている。係合突起６５を位置決めばね６３の上端部に形成し、下端をコイル枠６１に設けた溝部７０に挟持している。   The positioning spring 63 is formed so as to project toward the leg 62, and one of the two recesses is formed at a normal position (FIG. 1) in which the leakage indication button 40 does not project outward from the circuit breaker case 1 when the coil 60 is not energized. One engagement that elastically engages 62a and elastically engages the other 62b of the two recesses at the earth leakage display position (FIG. 6) in which the earth leakage display button 40 protrudes from the circuit breaker case 1 while the coil 60 is energized. The protrusion 65 is provided by bending. The engaging protrusion 65 is formed on the upper end portion of the positioning spring 63, and the lower end is sandwiched between the groove portions 70 provided on the coil frame 61.

漏電テスト用スイッチ２５は、オンとなる接触時にコイル６０を通電させるもので、テスト可動接点板４４およびテスト固定接点４５をコイル枠６１の表示ボタン用開口１９側に設けている。テスト可動接点板４４は基端部より側方にＬ字形の取付片７１が延出し、取付片７１に係止爪７２が切起こされ、コイル枠６１に設けた支持溝７３に取付片７１が挟まれ、係止爪７２が支持溝７３に係止して保持されている。テスト固定接点４５は略Ｌ字形導体により形成され、その一端面がテスト可動接点板４４に対向するように、コイル枠６１に形成した溝に圧入固定したりあるいはコイル枠６１に埋設している。   The earth leakage test switch 25 energizes the coil 60 when it is turned on. The test movable contact plate 44 and the test fixed contact 45 are provided on the display button opening 19 side of the coil frame 61. The test movable contact plate 44 has an L-shaped attachment piece 71 extending laterally from the base end portion, a locking claw 72 is cut and raised on the attachment piece 71, and the attachment piece 71 is inserted into a support groove 73 provided in the coil frame 61. The latching pawl 72 is sandwiched and held in the support groove 73. The test fixed contact 45 is formed of a substantially L-shaped conductor, and is press-fitted into a groove formed in the coil frame 61 or embedded in the coil frame 61 so that one end surface thereof faces the test movable contact plate 44.

以下、図示の漏電遮断器の構成について簡単に説明する。漏電遮断器は、主にハンドル２と、開閉機構３と、バイメタル４および短絡検出用の電磁石装置３６と、零相変流器５と、電磁石装置６と、不平衡電流発生手段７で構成されている。   Hereinafter, the configuration of the illustrated earth leakage breaker will be briefly described. The earth leakage circuit breaker mainly comprises a handle 2, an opening / closing mechanism 3, an electromagnet device 36 for detecting a bimetal 4 and a short circuit, a zero-phase current transformer 5, an electromagnet device 6, and an unbalanced current generating means 7. ing.

ハンドル２は、遮断器ケース１の表面から移動自在に突出する。実施の形態では遮断器ケース１の上面から回動自在に突出するもので、遮断器ケース１に設けられた軸１１に支持され、復帰ばねによりオフ方向に付勢されている。   The handle 2 projects movably from the surface of the circuit breaker case 1. In the embodiment, it protrudes from the upper surface of the circuit breaker case 1 so as to be rotatable, is supported by a shaft 11 provided in the circuit breaker case 1, and is biased in the off direction by a return spring.

開閉機構３は、接点１２を有し、ハンドル２の移動操作により接点１２を開閉駆動する。
実施の形態では、接点１２は、遮断器ケース１に軸支された可動接触子１３に設けられた可動接点１４と端子１０に接続された固定接点１５からなっている。開閉機構３において、２８は可動接触子１３を開極する開極ばね、２９はハンドル２に連結されたハンドルリンク、３０はハンドルリンク２９の先端を係合した溝３１を有する作動部材、３２はばねにより復帰付勢され遮断器ケース１に軸支されたラッチ部材、３３はラッチ部材３２のラッチ部３２ａが係止する係止部３３ａを有し、遮断器ケース１に軸支された引外し部材である。 The opening / closing mechanism 3 has a contact 12, and opens and closes the contact 12 by an operation of moving the handle 2.
In the embodiment, the contact 12 includes a movable contact 14 provided on a movable contact 13 pivotally supported on the circuit breaker case 1 and a fixed contact 15 connected to the terminal 10. In the opening / closing mechanism 3, 28 is an opening spring for opening the movable contact 13, 29 is a handle link connected to the handle 2, 30 is an operating member having a groove 31 engaged with the tip of the handle link 29, and 32 is A latch member 33, which is urged by a spring and is pivotally supported by the circuit breaker case 1, has a locking portion 33 a that is latched by the latch portion 32 a of the latch member 32, and a tripping member that is pivotally supported by the circuit breaker case 1. It is a member.

バイメタル４は、接点１２に過電流が流れると自由端側が変位し、自由端側に螺合した調整ねじ１６の先端で開閉機構３を介して、接点１２を強制開極する。実施の形態のバイメタル４は、その固定端を遮断器ケース１の底面側とするとともに自由端を遮断器ケース１の上面側とし、自由端に調整ねじ１６を螺合し、自由端の調整ねじ１６を開口１８から調整可能とする形でバイメタル４を遮断器ケース１内に配設している。バイメタル４の固定端４ａは、消弧グリッド３５の電磁石装置３６側のアーク走行板５５に固定されて自由端側が垂直に延び、その途中から傾斜をなすように折曲され、その傾斜により自由端部が開口１８に向き、かつねじ頭が開口１８に向いている。一方、調整ねじ１６の先端部は引外し部材３３の上端部に対向し、その相互間隔が調整ねじ１６のねじ込み量により設定される。このバイメタル４は基端が可撓電線３７を介して端子９に接続され、自由端が可撓電線３８により短絡検出用の電磁石装置３６のコイル３６ａに接続され、さらにコイル３６ａと可動接触子１３が可撓電線３９により接続され、これにより接点１２を介して端子９、１０間が接続されている。閉じた接点１２に過電流が流れるとバイメタル４がわん曲して調整ねじ１６が引外し部材３３を押すまで移動する時間の経過を経て、調整ねじ１６の先端で引外し部材３３を押し引外し部材３３を軸３３ｂを中心に時計まわりに回動してラッチ部３２ａを釈放させる。   When an overcurrent flows through the contact 12, the bimetal 4 is displaced on the free end side, and forcibly opens the contact 12 via the opening / closing mechanism 3 at the tip of the adjusting screw 16 screwed to the free end side. In the bimetal 4 of the embodiment, the fixed end is the bottom surface side of the circuit breaker case 1 and the free end is the top surface side of the circuit breaker case 1, and the adjusting screw 16 is screwed to the free end to adjust the free end adjusting screw. The bimetal 4 is arranged in the circuit breaker case 1 so that 16 can be adjusted from the opening 18. The fixed end 4a of the bimetal 4 is fixed to the arc travel plate 55 of the arc extinguishing grid 35 on the electromagnet device 36 side, the free end side extends vertically, and is bent so as to be inclined from the middle thereof. The part faces the opening 18 and the screw head faces the opening 18. On the other hand, the tip of the adjustment screw 16 faces the upper end of the tripping member 33, and the mutual interval is set by the screwing amount of the adjustment screw 16. The base end of the bimetal 4 is connected to the terminal 9 via the flexible electric wire 37, the free end is connected to the coil 36 a of the electromagnet device 36 for short circuit detection by the flexible electric wire 38, and the coil 36 a and the movable contact 13 are further connected. Are connected by a flexible electric wire 39, whereby the terminals 9 and 10 are connected via the contact 12. When an overcurrent flows through the closed contact 12, the bimetal 4 bends and the adjustment screw 16 moves until it pushes the tripping member 33, and then the tripping member 33 is pushed and pulled by the tip of the adjustment screw 16. The member 33 is rotated clockwise around the shaft 33b to release the latch portion 32a.

閉じた接点１２に短絡電流が流れたときは、電磁石装置３６が瞬時に動作し可動鉄心３６ｂに押されて可動棒３６ｃが移動し、引外し部材３３の下端部を押し、引外し部材３３を時計回りに回動させ、ラッチ部３２ａを釈放する。   When a short-circuit current flows through the closed contact 12, the electromagnet device 36 operates instantaneously and is pushed by the movable iron core 36 b to move the movable rod 36 c, pushes the lower end portion of the tripping member 33, and pulls the tripping member 33. Rotate clockwise to release the latch 32a.

零相変流器５は、各極間の不平衡電流を検出するもので、可撓電線３７および隣の極の電路を構成する可撓電線５６を１次側として零相変流器５に貫通している。零相変流器５の２次側に発生する不平衡電流を検出した出力信号は、プリント基板２６に実装された漏電保護回路に入力され、漏電保護回路は漏電を示す所定の不平衡電流の場合に電磁石装置６を作動する電流をコイル６０に供給する。   The zero-phase current transformer 5 detects an unbalanced current between the poles, and the zero-phase current transformer 5 has the flexible electric wire 37 and the flexible electric wire 56 constituting the electric circuit of the adjacent pole as the primary side. It penetrates. The output signal that has detected the unbalanced current generated on the secondary side of the zero-phase current transformer 5 is input to a leakage protection circuit mounted on the printed circuit board 26, and the leakage protection circuit has a predetermined unbalanced current indicating leakage. In some cases, a current for operating the electromagnet device 6 is supplied to the coil 60.

漏電用の電磁石装置６は、零相変流器５の検出出力に応じてすなわち漏電保護回路からコイル６０に供給される駆動電流によりプランジャ２０が移動し、開閉機構３を介して接点１２を強制開極する。すなわち、遮断器ケース１の開口１８の内側でプランジャ２０が下向き（底面側）に突出し、その先端に切欠き状の凹部２１を形成している。凹部２１には引外し部材３３より延出した係合部２２が嵌合している。したがって、電磁石装置６の動作でプランジャ２０が引き上げられると、これに伴って引外し部材３３が時計回りに回動し、ラッチ部３２ａを釈放する。同時に上記したように、漏電表示用の表示ボタン４０が電磁石装置６のプランジャ２０の押し上げ動作によって通常位置から漏電表示位置へ突出動作し、位置決めばね６３によって保持されている。漏電表示位置から通常位置へ没入する没入動作はトリップ後のハンドル２のオン動作にともなって開閉機構３に設けたレバー４２によって復帰片６８を押すことにより引き下げられるとともに、手で押し込むことにより行うこともできる。 In the electromagnet device 6 for earth leakage, the plunger 20 is moved according to the detection output of the zero-phase current transformer 5, that is, by the drive current supplied from the earth leakage protection circuit to the coil 60, and the contact 12 is forced through the switching mechanism 3. Open the pole. That is, the plunger 20 protrudes downward (bottom side) inside the opening 18 of the circuit breaker case 1, and a notch-shaped recess 21 is formed at the tip thereof. An engaging portion 22 extending from the tripping member 33 is fitted in the recess 21. Therefore, when the plunger 20 is pulled up by the operation of the electromagnet device 6, the tripping member 33 is rotated in the clockwise direction to release the latch portion 32a. At the same time, as described above, the display button 40 for leakage display projects from the normal position to the leakage display position by the push-up operation of the plunger 20 of the electromagnet device 6 and is held by the positioning spring 63. The immersing operation for immersing from the leakage display position to the normal position is performed by pushing down the return piece 68 by the lever 42 provided in the opening / closing mechanism 3 in accordance with the turning-on operation of the handle 2 after the trip and by pushing it in by hand. You can also.

不平衡電流発生手段７は、遮断器ケース１の上面に形成された開口１８を塞ぐ形で取着されたテストボタン２４を有し、テストボタン２４の操作により零相変流器５が検出する不平衡電流を発生するものである。実施の形態では、テストボタン２４の下側に位置する前述のスイッチ２５と、スイッチ２５のオンにより通電されて零相変流器５が検出する不平衡電流を発生する試験回路部（図示せず）を有する。試験回路部は例えば電流を限流する限流用抵抗と、試験用巻線等から構成されている。したがって、スイッチ２５のテストボタン２４を押し込むとテスト可動接点板４４が押され、テスト固定接点４５に接触してスイッチ２５がオンとなる。これにより零相変流器５に不平衡電流が発生し、零相変流器５によりこれを検出し、検出信号が漏電保護回路に出力され、電磁石装置６を作動し、プランジャ２０を駆動し、引外し部材３３を動作させラッチ部材３３ａを釈放するとともに表示ボタン４０を突出させる。   The unbalanced current generating means 7 has a test button 24 attached so as to close an opening 18 formed on the upper surface of the circuit breaker case 1, and the zero-phase current transformer 5 detects by operating the test button 24. An unbalanced current is generated. In the embodiment, the above-described switch 25 located below the test button 24 and a test circuit unit (not shown) that generates an unbalanced current that is energized when the switch 25 is turned on and is detected by the zero-phase current transformer 5. ). The test circuit unit includes, for example, a current-limiting resistor for current-limiting and a test winding. Therefore, when the test button 24 of the switch 25 is pushed in, the test movable contact plate 44 is pushed, contacts the test fixed contact 45, and the switch 25 is turned on. As a result, an unbalanced current is generated in the zero-phase current transformer 5, which is detected by the zero-phase current transformer 5, a detection signal is output to the leakage protection circuit, the electromagnet device 6 is operated, and the plunger 20 is driven. Then, the tripping member 33 is operated to release the latch member 33a and to cause the display button 40 to protrude.

図１および図２はオン状態であり、ラッチ部３２ａが引外し部材３３の係止部３３ａに係止した状態で、ラッチ部材３２がハンドルリンク２９を溝３１内で規制し、ハンドル２を時計方向に図１の位置へ回動することにより、可動接触子１３が開極ばね２８に抗して軸５５のまわりをオン方向に回動される。これにより、接点１２が閉じ、端子９、１０間は繋がっている。つぎに、この状態でハンドル２を反時計回りに回動すると、ハンドルリンク２９の死点を超えると同時に開極ばね２８のばね力により、可動接触子１３が開極動作するとともにハンドル２が開口縁に係止し、オフ状態となる。   1 and 2 are in an ON state, and the latch member 32 restricts the handle link 29 in the groove 31 in a state where the latch portion 32a is locked to the locking portion 33a of the tripping member 33, and the handle 2 is watched. 1, the movable contact 13 is rotated in the ON direction around the shaft 55 against the opening spring 28. As a result, the contact 12 is closed and the terminals 9 and 10 are connected. Next, when the handle 2 is rotated counterclockwise in this state, the movable contact 13 is opened and the handle 2 is opened by the spring force of the opening spring 28 at the same time as the dead center of the handle link 29 is exceeded. Locks to the edge and turns off.

図８はトリップ状態であり、過電流でバイメタル４が動作し、あるいは短絡電流で電磁石装置３６が動作し、あるいは漏電等の不平衡電流を零相変流器５が検出動作して、引外し部材３３が動作しラッチ部３２ａを釈放すると、ラッチ部材３２が軸５６のまわりに回動可能となってハンドルリンク２９の規制が解かれ、可動接触子１３は開極ばね２８により開極し、ハンドル２は復帰ばねによりオフ位置へ復帰する。ラッチ部材３２も復帰ばねにより復帰する。この状態で、引外し部材３３が復帰すると、ハンドル２を新たにオン操作する際に、ラッチ部材３２のラッチ部３２ａが引外し部材３３の係止部３３ａに係止可能となる。   FIG. 8 shows a trip state, in which the bimetal 4 operates due to an overcurrent, or the electromagnet device 36 operates due to a short-circuit current, or the zero-phase current transformer 5 detects and operates an unbalanced current such as a leakage current, thereby tripping. When the member 33 is operated to release the latch portion 32a, the latch member 32 can be rotated about the shaft 56, the restriction of the handle link 29 is released, and the movable contact 13 is opened by the opening spring 28, The handle 2 is returned to the off position by the return spring. The latch member 32 is also returned by the return spring. When the tripping member 33 returns in this state, the latch portion 32a of the latch member 32 can be locked to the locking portion 33a of the tripping member 33 when the handle 2 is newly turned on.

なお、この発明において、係合突起を漏電表示ボタン側に設け、凹所を位置決めばね側に設けてもよい。   In the present invention, the engagement protrusion may be provided on the electric leakage display button side, and the recess may be provided on the positioning spring side.

この発明の一実施の形態のオン状態の要部を断面し遮断器ケースの半分を外した状態の側面図である。It is a side view of the state where the principal part of the ON state of one embodiment of this invention was cut and half of the circuit breaker case was removed. 遮断器ケースの半分を外した状態のオン状態の側面図である。It is a side view of the ON state of the state which removed the half of the circuit breaker case. 平面図である。It is a top view. 電磁石装置の斜視図である。It is a perspective view of an electromagnet device. その分解斜視図である。FIG. 遮断器ケースの半分を外した状態のトリップ状態の側面図である。It is a side view of the trip state of the state which removed the half of the circuit breaker case.

符号の説明Explanation of symbols

１ 遮断器ケース
６ 電磁石装置
１９ 表示ボタン用開口
２０ プランジャ
４０ 漏電表示ボタン
４４ テスト可動接点板
４５ テスト固定接点
６０ コイル
６１ コイル枠
６２ 脚部
６３ 位置決めばね
６４ 保持手段
６５ 係合突起 DESCRIPTION OF SYMBOLS 1 Circuit breaker case 6 Electromagnet apparatus 19 Display button opening 20 Plunger 40 Leakage display button 44 Test movable contact plate 45 Test fixed contact 60 Coil 61 Coil frame 62 Leg 63 Positioning spring 64 Holding means 65 Engagement protrusion

Claims (2)

表示ボタン用開口を有する遮断器ケース内の前記表示ボタン用開口の内側に配設される漏電遮断器の漏電表示装置であって、前記表示ボタン用開口の方向を軸方向として漏電発生時に通電されるコイルを外周に巻装し前記軸方向に貫通孔を形成したコイル枠を有し、前記コイル枠の前記貫通孔に進退自在に配設されて前記コイルの通電により前記表示ボタン用開口側に駆動されるプランジャを有する電磁石装置と、前記プランジャよりも前記表示ボタン用開口側で前記貫通孔に臨み前記プランジャが前記表示ボタン用開口側に移動した際に前記プランジャに押圧されて前記表示ボタン用開口から前記遮断器ケースの外方に突出する漏電表示ボタンとを備え、
前記コイルが非通電状態で前記漏電表示ボタンを前記遮断器ケースから外方へ突出しない通常位置と、前記コイルが通電状態で前記漏電表示ボタンを前記遮断器ケースから突出する漏電表示位置とにそれぞれ保持する保持手段を設け、
前記漏電表示ボタンに前記遮断器ケースの内方向へ延出して前記コイル枠の側面に位置する脚部を設けるとともに、前記コイル枠に前記遮断器ケースの前記表示ボタン用開口の方向へ延出して前記コイル枠の側面に取着される位置決めばねを設け、
前記保持手段は、前記脚部に前記遮断器ケースの開口方向へ並設されかつ前記位置決めばね側へ開口した２つの凹所と、前記位置決めばねに前記脚部に向けて突出形成されて前記コイルが非通電状態で前記漏電表示ボタンを前記遮断器ケースから外方へ突出させない通常位置で前記２つの凹所の一方に弾性係合し、かつ前記コイルが通電状態で前記漏電表示ボタンを前記遮断器ケースから突出させた漏電表示位置で前記２つの凹所の他方に弾性係合する１つの係合突起とで構成された漏電遮断器の漏電表示装置。 An earth leakage display device for an earth leakage breaker disposed inside the display button opening in a circuit breaker case having an opening for display button, wherein the direction of the opening for the display button is an axial direction and is energized when an earth leakage occurs. A coil frame that is wound around the outer periphery and has a through-hole formed in the axial direction. The coil frame is disposed in the through-hole of the coil frame so as to be movable forward and backward. An electromagnet device having a driven plunger, and the display button opening when the plunger moves to the display button opening side when facing the through hole on the display button opening side than the plunger. An earth leakage display button protruding outward from the circuit breaker case from the opening,
A normal position where the earth leakage display button does not protrude outward from the circuit breaker case when the coil is not energized, and an earth leakage display position where the earth leakage display button protrudes from the circuit breaker case while the coil is energized, respectively. Providing holding means for holding;
The earth leakage display button is provided with legs that extend inward of the circuit breaker case and are positioned on the side surfaces of the coil frame, and the coil frame extends in the direction of the display button opening of the circuit breaker case. A positioning spring attached to a side surface of the coil frame;
The holding means includes two recesses provided in parallel to the leg portion in the opening direction of the circuit breaker case and opened toward the positioning spring, and the positioning spring is formed to project toward the leg portion. Is in a non-energized state and is elastically engaged with one of the two recesses at a normal position where it does not project outward from the circuit breaker case, and the leakage indicator button is cut off when the coil is energized. An earth leakage display device for an earth leakage breaker comprising an engagement protrusion elastically engaged with the other of the two recesses at an earth leakage display position protruding from the case . 前記コイル枠の前記表示ボタン用開口側に、接触時に前記コイルを通電させるテスト可動接点板及びテスト固定接点を設けた請求項１記載の漏電遮断器の漏電表示装置。   The earth leakage display device for an earth leakage breaker according to claim 1, wherein a test movable contact plate and a test fixed contact for energizing the coil at the time of contact are provided on the display button opening side of the coil frame.
JP2003280094A 2003-07-25 2003-07-25 Earth leakage display device for earth leakage breaker Expired - Fee Related JP4232569B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003280094A JP4232569B2 (en) 2003-07-25 2003-07-25 Earth leakage display device for earth leakage breaker
CNB2004100713556A CN100339927C (en) 2003-07-25 2004-07-20 Leakage indication device for earth leakage breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003280094A JP4232569B2 (en) 2003-07-25 2003-07-25 Earth leakage display device for earth leakage breaker

Publications (2)

Publication Number Publication Date
JP2005044734A JP2005044734A (en) 2005-02-17
JP4232569B2 true JP4232569B2 (en) 2009-03-04

Family

ID=34266024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003280094A Expired - Fee Related JP4232569B2 (en) 2003-07-25 2003-07-25 Earth leakage display device for earth leakage breaker

Country Status (2)

Country Link
JP (1) JP4232569B2 (en)
CN (1) CN100339927C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4507944B2 (en) * 2005-03-29 2010-07-21 三菱電機株式会社 Earth leakage breaker
JP6157390B2 (en) * 2014-03-20 2017-07-05 三菱電機株式会社 Earth leakage breaker
JP7411921B2 (en) * 2019-03-29 2024-01-12 パナソニックＩｐマネジメント株式会社 circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2654158B2 (en) * 1989-01-14 1997-09-17 松下電工株式会社 Breaker operation display mechanism
JP3171347B2 (en) * 1992-07-28 2001-05-28 松下電工株式会社 Earth leakage breaker
CN2256585Y (en) * 1995-12-21 1997-06-18 佛山市半导体器件厂 Single phase leakage circuit breaker
KR200196838Y1 (en) * 2000-04-21 2000-09-15 엘지산전주식회사 Leakage breaker
KR100364824B1 (en) * 2000-12-05 2002-12-16 엘지산전 주식회사 The current leakage trip device in earth leakage circuit breaker

Also Published As

Publication number Publication date
JP2005044734A (en) 2005-02-17
CN100339927C (en) 2007-09-26
CN1577691A (en) 2005-02-09

Similar Documents

Publication Publication Date Title
CA2105917C (en) Attachment actuator arrangement for 1 and 2-pole ground fault
JP5070949B2 (en) Circuit breaker with leakage alarm
JP4816246B2 (en) Earth leakage breaker
JP2008112691A (en) Leakage tripping device of earth leakage breaker
US5093643A (en) Undervoltage release device assembly for circuit breaker
KR20160006760A (en) Circuit breaker
US4037184A (en) Lockout and cover interlock for circuit breaker
JP4232569B2 (en) Earth leakage display device for earth leakage breaker
US7570140B2 (en) Magnetic trip mechanism including a plunger member engaging a support structure, and circuit breaker including the same
JP6658360B2 (en) Earth leakage breaker
JP4906517B2 (en) Earth leakage breaker
JP2006120563A (en) Ground fault interrupter
JP4206994B2 (en) Remote control type earth leakage breaker
JP4644227B2 (en) Remote control circuit breaker
JP4206993B2 (en) Remote control type earth leakage breaker
JP4218455B2 (en) Earth leakage breaker
KR20130060866A (en) Forceful trip mechanism for home circuit breaker
JPH08161998A (en) Tripping device of earth leakage breaker
JP3106817B2 (en) Earth leakage breaker
JP2018190694A (en) Earth-leakage circuit breaker
US20060158813A1 (en) Electronic type protective relay
JPH0112372Y2 (en)
US2937252A (en) Circuit breaker
JP2582821B2 (en) Earth leakage breaker
JP4310232B2 (en) Circuit breaker

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060215

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080822

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080902

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081017

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20081118

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081201

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111219

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121219

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121219

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131219

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees