JPS5919406B2 - current limiting breaker - Google Patents
current limiting breakerInfo
- Publication number
- JPS5919406B2 JPS5919406B2 JP1753377A JP1753377A JPS5919406B2 JP S5919406 B2 JPS5919406 B2 JP S5919406B2 JP 1753377 A JP1753377 A JP 1753377A JP 1753377 A JP1753377 A JP 1753377A JP S5919406 B2 JPS5919406 B2 JP S5919406B2
- Authority
- JP
- Japan
- Prior art keywords
- base end
- fixed contact
- arc
- tip
- current
- 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
Links
- 238000002242 deionisation method Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Breakers (AREA)
Description
【発明の詳細な説明】
本発明は限流ブレーカ−に関するもので、接点の閉成時
に限流抵抗に電流を流さずに、短絡−電流の遮断時に発
生するアーク電流を消弧するときのみに限流抵抗に電流
を流し、限流抵抗の温度上昇を小さくすることを目的と
するものである。[Detailed Description of the Invention] The present invention relates to a current-limiting breaker, which does not allow current to flow through the current-limiting resistor when a contact is closed, but only when extinguishing an arc current that occurs when a short circuit or current is interrupted. The purpose of this is to cause current to flow through the current limiting resistor and to reduce the temperature rise of the current limiting resistor.
以下本発明の実施例を図面について説明すると、１はケ
ース、２はケース１内に配設する固定接点板で、その中
間部には固定接点３が固定され、かつ、その基端はケー
ス１外に装着する端子４に電気的に接続される。Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a case, 2 is a fixed contact plate disposed inside the case 1, a fixed contact 3 is fixed to the intermediate part thereof, and the base end is connected to the case 1. It is electrically connected to a terminal 4 that is attached to the outside.
５はケース１内に固定する取付枠６の突起６ａに基端の
細長孔５ａを遊嵌することにより基端がケース１に対し
て枢支される可動接触子で、その先端の可動接点５ｂは
前記固定接点３に接離するよう対向される。Reference numeral 5 denotes a movable contact whose base end is pivotally supported with respect to the case 1 by loosely fitting the elongated hole 5a at the base end into the protrusion 6a of the mounting frame 6 fixed in the case 1, and the movable contact 5b at the tip thereof. are opposed to the fixed contact 3 so as to approach and separate from it.
７，７′は互に間隔を置いて対向するようケース１内に
配設する一対のアークホーンで、それらのいずれか一方
のアークホーン７０基端は前記固定接点板２の先端ニ一
体に連接され、かつ、他方のアークホーン７′の基端側
部は固定接点板２の先端側部に対向されてアークホーン
７′の基端は可撓電線８にて前記可動接触子５の基端部
に接続され、更に、前記可動接点５ｂと固定接点３との
開成時に可動接触子５の先端が前記アークホーン７′の
先端に当接するようになされる。Reference numerals 7 and 7' denote a pair of arcing horns disposed in the case 1 so as to face each other with a distance therebetween, and the base end of one of the arcing horns 70 is connected to the tip of the fixed contact plate 2. The proximal end side of the other arcing horn 7' is opposed to the distal end side of the fixed contact plate 2, and the proximal end of the arcing horn 7' is connected to the proximal end of the movable contact 5 by a flexible electric wire 8. Further, when the movable contact 5b and the fixed contact 3 are opened, the tip of the movable contact 5 comes into contact with the tip of the arc horn 7'.
しかして、アークホーン７．７ｂいずれか一方のアーク
ホーン７の中間部に小ギャップ９が設けられてアークホ
ーン７は基端片７ａと先端片７ｂとに二分割され、かつ
、基端片１ａの先端と先端片７ｂの基端間に限流抵抗１
０が接続される。Thus, a small gap 9 is provided in the middle of one of the arc horns 7, 7b, and the arc horn 7 is divided into two parts, the base end piece 7a and the tip end piece 7b, and the base end piece 1a A current limiting resistor 1 is installed between the tip of the tip and the base of the tip piece 7b.
0 is connected.
１１はアークホーン７．７′のそれぞれの先端側部間に
配設するデアイオン装置、１２は可動接触子５を開閉す
る開閉リンク機構で、前記取付枠６に中間部を軸承する
バンドル１３の下端に一端を枢支した連結杆１４の他端
と前記可動接触子５の中間部に一端を枢支した駆動杆１
６の他端とを軸１６に枢支し、・かつ取付枠６に軸承す
るラッチ板１７の摺動細長孔１７ａに前記軸１６を摺動
するよう挿入し、更に、取付枠６に枢支する引外し片１
８に前記ラッチ板１７を係止してなり、また、・・ンド
ル１３には該・・ンドルを反時計方向に回動するよう作
用するパネル１９が弾装される。Reference numeral 11 denotes a deionization device disposed between the tip sides of the arc horns 7 and 7', 12 an opening/closing link mechanism for opening and closing the movable contact 5, and the lower end of the bundle 13 whose intermediate portion is supported on the mounting frame 6. a driving rod 1 having one end pivotally supported at an intermediate portion between the other end of the connecting rod 14 and the movable contact 5;
The other end of the latch plate 17 is pivotally supported on the shaft 16, and the shaft 16 is slidably inserted into the sliding slot 17a of the latch plate 17, which is pivotally supported on the mounting frame 6. Tripping piece 1
8 locks the latch plate 17, and the handle 13 is equipped with a panel 19 that acts to rotate the handle counterclockwise.
２０はケース１に固定する端子板２１に基端を固定した
バイメタルで、その自由端は引外し片１８に対向される
。20 is a bimetal whose base end is fixed to a terminal plate 21 fixed to the case 1, and its free end is opposed to the tripping piece 18.
２２は口字状のヨーク２３と固定鉄心２４と可動鉄心２
５とコイル２６と可動杆２７とからなる短絡電流検出装
置で、可動鉄心２５は前記可動接触子５に連結されて可
動杆２７の先端は前記引外し片１８に対向され、かつ、
コイル２６の一端は前記バイメタル２０の自由端部に接
続されて、コイル２６の他端は前記アークホーン７′の
基端に接続される。22 is a mouth-shaped yoke 23, a fixed iron core 24, and a movable iron core 2.
5, a coil 26, and a movable rod 27, the movable iron core 25 is connected to the movable contact 5, the tip of the movable rod 27 is opposed to the tripping piece 18, and,
One end of the coil 26 is connected to the free end of the bimetal 20, and the other end of the coil 26 is connected to the base end of the arc horn 7'.
２８は可動接触子５の駆動杆１５との枢支部と細長孔５
ａ間の中間部と取付枠６間に弾装せる接触バネである。Reference numeral 28 indicates a pivot portion between the movable contactor 5 and the drive rod 15 and the elongated hole 5.
This is a contact spring that can be elastically loaded between the intermediate part between the space a and the mounting frame 6.
本発明は上記のような構成で、図に゛おいて、−・ンド
ル１３は反時計方向に回動すると、軸１６がラッチ板１
７の摺動細長孔１７ａを矢印Ｐ方向に移動し、可動接点
５ｂと固定接点３とは接触バネ２８のバネ力にて開成す
る。The present invention has the above-described configuration, and as shown in the figure, when the handle 13 is rotated counterclockwise, the shaft 16 is moved toward the latch plate 1.
7 in the direction of arrow P, and the movable contact 5b and fixed contact 3 are opened by the spring force of the contact spring 28.
次に、端子板２１とバイメタル２０とコイル２６と可動
接触子５と可動接点５ｂと固定接点３固定接点２と端子
４からなる電流通路に一定以上の過電流が流れることに
よりバイメタル２０の自由端が撓んで、バイメタル２０
の自由端が引外し片１８を移動し、しかして、ラッチ板
１７が引外し片１８より外れたとき、或は、前記電流通
路に短絡電流が流れることにより前記コイル２６に流れ
る短絡電流の作る磁界によシ可動鉄心２５が固定鉄心２
４に吸着移動され、しかして、可動接点５ｂが固定接点
３よシ可動鉄心２５の移動によって強制的に開成される
と同時に可動杆２７が引外し片１８を移動してラッチ板
１７が引外し片１Ｂより外れるとき、前記ラッチ板１７
はその枢支部を中心に回転自在となり、可動接点５ｂと
固定接点３とは開成するようになるものである。Next, an overcurrent exceeding a certain level flows through the current path consisting of the terminal plate 21, the bimetal 20, the coil 26, the movable contact 5, the movable contact 5b, the fixed contact 3, the fixed contact 2, and the terminal 4, so that the free end of the bimetal 20 is bent, bimetal 20
When the free end of the latch moves the tripping piece 18 and the latch plate 17 comes off the tripping piece 18, or a short-circuit current flows through the current path, a short-circuit current flows through the coil 26. Due to the magnetic field, the movable iron core 25 is connected to the fixed iron core 2.
4, the movable contact 5b is forcibly opened by the movement of the movable core 25 from the fixed contact 3, and at the same time the movable rod 27 moves the tripping piece 18 and the latch plate 17 is tripped. When detached from piece 1B, the latch plate 17
is rotatable around its pivot point, and the movable contact 5b and fixed contact 3 are opened.
そして、図において、可動接点５ｂと固定接点３を開成
して短絡電流を遮断するとき、可動接点５ｂと固定接点
３間に生ずるアークは可動接触子５と固定接点板２にそ
れぞれ流れる電流の作る磁界によシブアイオン装置１１
側に移動されてアークはアークホーン７の基端片７ａと
アークホーン７１間に移シ、更に、アークはアークホー
ン７の先端片７ａとアークホーン７′にそれぞれ流れる
電流の作る磁界によってデアイオン装置１１側へ移動さ
れ、遂に、アークはアークホーン７の先端片７ｂとアー
クホー７７間に移る。In the figure, when the movable contact 5b and the fixed contact 3 are opened to interrupt the short circuit current, the arc generated between the movable contact 5b and the fixed contact 3 is caused by the current flowing through the movable contact 5 and the fixed contact plate 2, respectively. Shiveye ion device 11 by magnetic field
The arc is moved to the side, and the arc is transferred between the base end piece 7a of the arc horn 7 and the arc horn 71, and furthermore, the arc is moved to the deionization device by the magnetic field created by the current flowing through the tip end piece 7a of the arc horn 7 and the arc horn 7'. 11 side, and the arc finally moves between the tip piece 7b of the arc horn 7 and the arc horn 77.
そして、この時、はじめて限流抵抗１０に電流が流れる
ようになり、アーク電流は限流抵抗１０にて限流される
と同時に、アーク電流はデアイオン装置１１にて消弧さ
れるようになるもので、接点３．５ｂの閉成時、限流抵
抗１０には電流が流れず、アーク電流を消弧するときに
限流抵抗が流れるようになシ、限流抵抗１０の温度上昇
は小さくなって限流抵抗１０の焼損が生じ難くなるもの
である。At this time, current begins to flow through the current limiting resistor 10 for the first time, and the arc current is limited by the current limiting resistor 10, and at the same time, the arc current is extinguished by the deionization device 11. , when the contact 3.5b is closed, no current flows through the current-limiting resistor 10, but when extinguishing the arc current, the current-limiting resistor flows, and the temperature rise of the current-limiting resistor 10 becomes small. This makes it difficult for the current limiting resistor 10 to burn out.
かように本発明は、中間部に固定接点を固着する固定接
点板をケース内に配設して固定接点板の基端ヲケース外
に装着する端子に電気的に接続し、基端ヲケースに対し
て枢支づる可動接触子の先端の可動接点を前記固定接点
に接離するよう対向し、一対のアークホーンを互に間隔
を置いて対向するようケース内に配設して該一対のアー
クホーンのそれぞれの先端側部間にデアイオン装置を配
設し。Thus, in the present invention, a fixed contact plate having a fixed contact fixed to the intermediate part is arranged inside the case, the base end of the fixed contact plate is electrically connected to a terminal mounted outside the case, and the base end is connected to the case. The movable contact at the tip of the movable contact pivotably supported by the movable contact faces the fixed contact so as to come into contact with and separate from the movable contact, and the pair of arcing horns are disposed in the case so as to face each other with a distance between them. A deionization device is placed between the sides of each tip.
一方のアークホーンの基端を前記固定接点板の先端に連
設し、かつ、他方のアークホーンの基端側部を固定接点
板の先端側部に対向して上記他方のアークホーンの基端
を可撓電線にて前記可動接触子の基端部に接続し、更に
、・一対のアークホーンのいずれか一方のアークホーン
の中間部に小ギャップを設けて当該アークホーンを基端
片と先端片とに二分割し、基端片の先端と先端片の基端
間に限流抵抗を接続したから、限流抵抗には通常電流が
流れず、短絡電流の遮断時に生ずるアーク電流を消弧す
るとき、限流抵抗に電流が流れるようになり、限流抵抗
の温度上昇は小さくなり限流抵抗の焼損が生じ難くなる
効果がある。The proximal end of one arcing horn is connected to the distal end of the fixed contact plate, and the proximal side of the other arcing horn is arranged opposite to the distal end side of the fixed contact plate, and the proximal end of the other arcing horn is connected to the distal end of the fixed contact plate. is connected to the base end of the movable contact with a flexible electric wire, and further, a small gap is provided in the middle of one of the pair of arc horns, and the arc horn is connected to the base end piece and the tip end. Since it is divided into two pieces and a current limiting resistor is connected between the tip of the base piece and the base of the tip piece, normal current does not flow through the current limiting resistor, and the arc current that occurs when the short circuit current is interrupted is extinguished. At this time, current flows through the current limiting resistor, the temperature rise of the current limiting resistor becomes small, and there is an effect that burnout of the current limiting resistor becomes less likely to occur.
図面は本発明の実施例の断面図である。
１はケース、２は固定接点板、３は固定接点、４は端子
、５は可動接触子、５ｂは可動接点、７゜７′はアーク
ホーンｂ７ａは基端片、７ｂは先端片、９は小ギャップ
、１０は限流抵抗、１１はデアイオン装置である。The drawings are cross-sectional views of embodiments of the invention. 1 is a case, 2 is a fixed contact plate, 3 is a fixed contact, 4 is a terminal, 5 is a movable contact, 5b is a movable contact, 7° 7' is an arc horn b7a is a base end piece, 7b is a tip piece, 9 is a A small gap, 10 a current limiting resistor, and 11 a deionization device.
Claims (1)
に配設して固定接点 の基端をケース外に装着する端子
に電気的に接続し、基端をケースに対して枢支する可動
接触子の先端の可動接点を前記固定接点に接触するよう
対向し、一対のアークホーンを互に間隔を置いて対向す
るようケース内に配設して該一対のアークホーンのそれ
ぞれの先端側部間にデアイオン装置を配設し、一方のア
ークホーンの基端を前記固定接点板の先端に連接し。 かつ、他方のアークホーンの基端側部を固定接点板の先
端側部に対向して上記他方のアークホーンの基端を可撓
電線にて前記可動接触子の基端部に接続し、更に、一対
のアークホーンのいスレか一方のアークホーンの中間部
に小ギャップを設けて当該アークホーンを基端片と先端
片とに二分割し。 基端片の先端と先端片の基端間に限流抵抗を接続するこ
とを特徴とする限流ブレーカ−０[Scope of Claims] 1. A fixed contact plate having a fixed contact fixed to the intermediate part is disposed inside the case, the base end of the fixed contact is electrically connected to a terminal mounted outside the case, and the base end is attached to the case. The movable contact at the tip of the movable contact pivotably supported by the movable contact faces the fixed contact, and the pair of arc horns are disposed in the case so as to face each other with a distance therebetween. A deionization device is disposed between the distal end sides of each of the arc horns, and the proximal end of one arc horn is connected to the distal end of the fixed contact plate. and connecting the base end of the other arc horn to the base end of the movable contact with a flexible electric wire, with the base end side of the other arc horn facing the front end side of the fixed contact plate; A small gap is provided in the middle of one of the arc horns of a pair of threads, and the arc horn is divided into a base end piece and a tip end piece. Current-limiting breaker-0 characterized in that a current-limiting resistor is connected between the tip of the base end piece and the base end of the tip piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1753377A JPS5919406B2 (en) | 1977-02-18 | 1977-02-18 | current limiting breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1753377A JPS5919406B2 (en) | 1977-02-18 | 1977-02-18 | current limiting breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53103170A JPS53103170A (en) | 1978-09-08 |
| JPS5919406B2 true JPS5919406B2 (en) | 1984-05-07 |
Family
ID=11946554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1753377A Expired JPS5919406B2 (en) | 1977-02-18 | 1977-02-18 | current limiting breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919406B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162439A (en) * | 1980-08-31 | 1981-12-14 | Matsushita Electric Works Ltd | Circuit breaker |
| JPS56162443A (en) * | 1980-11-30 | 1981-12-14 | Matsushita Electric Works Ltd | Circuit breaker |
-
1977
- 1977-02-18 JP JP1753377A patent/JPS5919406B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53103170A (en) | 1978-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4144513A (en) | Anti-rebound latch for current limiting switches | |
| CA1294304C (en) | Remotely controllable circuit breaker | |
| JPH0438095B2 (en) | ||
| US4080582A (en) | Circuit breaker with improved trip mechanism | |
| EP3373319B1 (en) | Circuit breaker with instant trip mechanism | |
| JPS5929940B2 (en) | Circuit breaker arc extinguishing device | |
| US2815418A (en) | Circuit breakers of the kind having a magnetic blow-out | |
| GB1583570A (en) | Current limiting circuit breaker | |
| US4266210A (en) | Circuit breaker with improved arc extinguishing means | |
| WO2014175942A1 (en) | Bimetal and magnetic armature providing an arc splatter resistant offset therebetween, and circuit breaker including the same | |
| CA1088599A (en) | Multi-pole circuit breaker in which each pole has a two-part molded case | |
| US3548358A (en) | Electric circuit breaker with bimetallic strip protective means | |
| US3422381A (en) | Multi-pole circuit breaker with common trip bar | |
| US5185590A (en) | Magnetic blow-out circuit breaker with booster loop/arc runner | |
| JPH0127250Y2 (en) | ||
| JPS5919406B2 (en) | current limiting breaker | |
| JPH01176621A (en) | Overcurrent trip gear of circuit breaker | |
| CN102129943B (en) | Circuit breaker | |
| CA1101025A (en) | Current limiting circuit breaker | |
| US4163881A (en) | Circuit breaker with thrust transmitting spring | |
| JP2889744B2 (en) | breaker | |
| JPH0350597Y2 (en) | ||
| JP3090405B2 (en) | Circuit breaker | |
| JPS6035775B2 (en) | circuit breaker | |
| JPS6036053B2 (en) | Hardwire circuit breaker |