JPH0869740A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JPH0869740A JPH0869740A JP6205117A JP20511794A JPH0869740A JP H0869740 A JPH0869740 A JP H0869740A JP 6205117 A JP6205117 A JP 6205117A JP 20511794 A JP20511794 A JP 20511794A JP H0869740 A JPH0869740 A JP H0869740A
- Authority
- JP
- Japan
- Prior art keywords
- mover
- movable contact
- plate surface
- conductor
- contact
- 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.)
- Granted
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
Landscapes
- Breakers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、モールドケース形の
回路遮断器において、特に、回路を開閉するための可動
子の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded case type circuit breaker, and more particularly to improvement of a mover for opening and closing a circuit.
【０００２】[0002]
【従来の技術】図８ないし図１０は，例えば実公平５−
３２９２２号公報に示された従来の回路遮断器を示すも
ので、図８はトリップ状態の側面図、図９はオン状態
（閉合状態）の側面図である。図において、１はカバー
１ａとベース１ｂとからなる合成樹脂製のケース、２は
ベース１ｂの底面側に設置された固定子で、固定接点２
ａを有している。３はベース１ｂにねじ４を用いて螺着
されたフレーム、５はフレーム３の突部３ａを支点にし
て回動する操作ハンドル、６は操作ハンドル５に回転可
能に取り付けられたクレドル、７はクレドル６に設けら
れた上リンクピン、８はリンク機構で、連結ピン９によ
り連結される上リンク８ａと下リンク８ｂとからなる。
１０は引きばねで、連結ピン９を操作ハンドル５側に付
勢して上リンク８ａを上リンクピン７に係止させる。１
１はベース１ｂに対して回転可能に設置されるクロスバ
ーで、下リンクピン１２により下リンク８ｂが連係され
る。１３は可動子であり、可動接点１３ａを有し、可動
子軸１４によりクロスバー１１に回転可能に保持され
る。2. Description of the Related Art FIGS.
FIG. 8 shows a conventional circuit breaker disclosed in Japanese Patent No. 32922, FIG. 8 is a side view in a trip state, and FIG. 9 is a side view in an ON state (closed state). In the figure, 1 is a case made of synthetic resin composed of a cover 1a and a base 1b, 2 is a stator installed on the bottom side of the base 1b, and a fixed contact 2
a. Reference numeral 3 is a frame screwed to the base 1b using screws 4, 5 is an operation handle that rotates about the protrusion 3a of the frame 3 as a fulcrum, 6 is a cradle rotatably attached to the operation handle 5, and 7 is The upper link pin 8 provided on the cradle 6 is a link mechanism, and is composed of an upper link 8a and a lower link 8b connected by a connecting pin 9.
Reference numeral 10 denotes a pulling spring, which urges the connecting pin 9 toward the operation handle 5 side to lock the upper link 8a to the upper link pin 7. 1
Reference numeral 1 denotes a crossbar rotatably installed with respect to the base 1b, and the lower link 8 links the lower link 8b. A mover 13 has a movable contact 13a, and is rotatably held by the crossbar 11 by a mover shaft 14.
【０００３】図９において、１５はベース１ｂに固定さ
れた固定導体、１６は固定導体１５と可動子１３とを接
続する可撓導体、１７はベース１ｂに設置された瞬時引
外し用の電磁装置で、可動鉄心１７ａを有している。１
８は時限引外し用のバイメタルであり、１８ａはトリッ
プ動作のための調整ねじである。１９はトリップバー
で、可動鉄心１７ａと調整ねじ１８ａがそれぞれ係合し
ている。２０はトリップバー１９に係合する掛金、２１
は掛金２０と係合するラッチで、クレドル６が係合して
いる。２２はフレーム３に設けたストッパーピン、２３
はストッパーピン２２に当接するリンクストッパであ
り、当接部２３ａにはトリップ時にはね返る上リンク８
ａが接触するようになされている。２４は周知のデアイ
オン消弧室である。In FIG. 9, 15 is a fixed conductor fixed to the base 1b, 16 is a flexible conductor for connecting the fixed conductor 15 and the mover 13, and 17 is an electromagnetic device for instantaneous tripping installed in the base 1b. Therefore, it has a movable iron core 17a. 1
Reference numeral 8 is a bimetal for timed trip, and 18a is an adjusting screw for trip operation. A trip bar 19 is engaged with the movable iron core 17a and the adjusting screw 18a. 20 is a latch for engaging the trip bar 19, 21
Is a latch that engages with the latch 20 and is engaged with the cradle 6. 22 is a stopper pin provided on the frame 3, 23
Is a link stopper that abuts on the stopper pin 22, and the abutting portion 23a rebounds upon tripping the upper link 8
a is in contact. Reference numeral 24 is a well-known deionization arc extinguishing chamber.
【０００４】上記構成の回路遮断器において、可動子１
３は各種の構成のものが考えられている。即ち、図１０
は平板状の可動子導体１３ｂを用いて構成されたもの
で、可動子導体１３ｂの一端の板厚面に可動接点１３ａ
がろう付けされている。図１１は、例えば実開平２−４
１３４８号公報に示された構成の可動子１３をベース１
ｂに組込んだ状態を示すもので、１３ｂは平板状の可動
子導体であり、幅の広い板面側に可動接点１３ａがろう
付けされている。ベース１ｂは、可動子導体１３ｂの固
定接点１３ａ部分とクロスバー１１の部分との間にスリ
ット１ｄを有する隔壁１ｅが設けられたものである。可
動子１３はスリット１ｄの中にあって、矢印Ａの方向に
開閉動作する。図１２は更に他の平板状の可動子１３の
従来例を示すものであり、この場合、平板状の可動子腕
１３ｂの一端をＬ字形に折曲げて板面部を形成し、この
板面部に可動接点１３ａがろう付けされている。１４ａ
は可動子軸１４が嵌装される孔である。図１３は、図１
２に示す可動子１３が多極回路遮断器に組み込まれた配
置状態を示す略画的平面図であり、可動子軸１４で支持
される可動子１３の支持位置に対し、可動接点１３ａ及
び固定接点２ａの中心が寸法Ｌだけずれて構成されてい
る。In the circuit breaker having the above structure, the mover 1
Various configurations of 3 are considered. That is, FIG.
Is constituted by using a plate-shaped mover conductor 13b, and the movable contact 13a is formed on the plate thickness surface of one end of the mover conductor 13b.
Is brazed. FIG. 11 shows, for example, the actual Kaihei 2-4.
Based on the mover 13 having the configuration shown in Japanese Patent No. 1348,
13b shows a state in which the movable contact 13a is assembled in b, and the movable contact 13a is a flat plate, and the movable contact 13a is brazed to the wide plate surface side. The base 1b is provided with a partition wall 1e having a slit 1d between the fixed contact 13a portion of the mover conductor 13b and the crossbar 11 portion. The mover 13 is in the slit 1d and opens and closes in the direction of arrow A. FIG. 12 shows another conventional example of a flat plate-shaped mover 13. In this case, one end of the flat plate-shaped mover arm 13b is bent into an L shape to form a plate surface portion, and this plate surface portion is formed. The movable contact 13a is brazed. 14a
Is a hole into which the mover shaft 14 is fitted. 13 is the same as FIG.
2 is a schematic plan view showing an arrangement state in which a mover 13 shown in FIG. 2 is incorporated in a multipole circuit breaker, and a movable contact 13a and a fixed portion are fixed with respect to a support position of the mover 13 supported by a mover shaft 14. The center of the contact 2a is displaced by the dimension L.
【０００５】上記構成の回路遮断器において、操作ハン
ドル５によるオン・オフの動作、回路に大電流が流れた
とき電磁装置１７あるいはバイメタル１８によるトリッ
プ動作（図８の状態になる動作）などの回路遮断器の動
作は実公平５−３２９２２号公報に示された通りであ
る。In the circuit breaker having the above-described structure, a circuit such as an on / off operation by the operation handle 5 and a trip operation (an operation in which the state shown in FIG. 8) is caused by the electromagnetic device 17 or the bimetal 18 when a large current flows in the circuit. The operation of the circuit breaker is as shown in Japanese Utility Model Publication No. 5-32922.
【０００６】[0006]
【発明が解決しようとする課題】上記のような従来の回
路遮断器において、可動子１３が図１０に示すような平
板状の可動子導体１３ｂの板厚面に可動接点１３ａをろ
う付けしたものにおいては、ろう付け時の加熱により可
動子導体１３ｂが軟化して強度が低下する。また、可動
子導体１３ｂの厚さによっては、可動接点１３ａのろう
付け面積が少ないのでろう付け強度が劣る。さらに、通
電による可動接点１３ａの発熱が可動子導体１３ｂへ伝
導し難いので可動接点１３ａが高温になり易い。さらに
また、ろう付け作業のための、加圧力や通電電流あるい
は通電時間のばらつきにより、ろう付け強度が安定せ
ず、このためろう付け作業時間が長くかかり、コスト高
の要因になるなどの問題点があった。In the conventional circuit breaker as described above, the movable element 13 is brazed with the movable contact 13a on the plate thickness surface of the movable element conductor 13b having a flat plate shape as shown in FIG. In the above, the mover conductor 13b is softened by heating during brazing and its strength is reduced. Further, depending on the thickness of the mover conductor 13b, the brazing area of the movable contact 13a is small, and the brazing strength is poor. Further, the heat generated from the movable contact 13a due to energization is difficult to be conducted to the mover conductor 13b, so that the movable contact 13a is likely to reach a high temperature. Furthermore, the brazing strength is not stable due to variations in the pressing force, energizing current, or energizing time for brazing work, which results in longer brazing work time and higher cost. was there.
【０００７】図１１に示すような平板状の可動子導体１
３ｂで構成されるものにおいては、可動子導体１３ｂの
幅が広いので可動接点１３ａのろう付けが容易であり、
また、かしめ付けにより接合することもできる。さら
に、可動子導体１３ｂの弾力性が可動子導体１３ｂ及び
開閉用のリンク機構（図示せず）の動作を円滑にするな
ど優れた点がある。しかし、スリット１ｄの幅が広くな
るので、開路時に接点部で発生するアークガスがスリッ
ト１ｄを通って引外し装置（図９において符号１７及び
１８）側へ侵入し易いと言う問題点があった。A flat plate-shaped mover conductor 1 as shown in FIG.
3b, the movable element conductor 13b has a wide width, so that the movable contact 13a can be easily brazed.
Also, they can be joined by caulking. In addition, the elasticity of the mover conductor 13b makes it possible to smoothly operate the mover conductor 13b and the link mechanism (not shown) for opening and closing. However, since the width of the slit 1d becomes wide, there is a problem that the arc gas generated at the contact portion when the circuit is opened easily enters the trip device (reference numerals 17 and 18 in FIG. 9) through the slit 1d.
【０００８】図１２に示すように、平板状の可動子導体
１３ｂの一端をＬ字形に折曲げて平面部を形成し、この
平面部に可動接点１３ａがろう付けされたものは、図１
３に示すように可動接点１３ａの位置がずれる。即ち、
可動子軸１４により支承された可動子導体１３ｂの中心
線に対し、可動接点１３ａの中心は寸法Ｌだけ図示のよ
うに左方向へずれる。従って、可動接点１３ａの中心は
ケース１の中心から寸法Ｌだけ偏心することになる。こ
の偏心により固定接点２ａと可動接点１３ａの関係位置
が変動し易く、また、構造によっては回路遮断器の外形
寸法が大きくなるなどの問題点があった。As shown in FIG. 12, one end of a plate-shaped mover conductor 13b is bent into an L shape to form a flat surface portion, and the movable contact 13a is brazed to this flat surface portion.
As shown in FIG. 3, the position of the movable contact 13a is displaced. That is,
The center of the movable contact 13a is displaced leftward by a dimension L from the center line of the movable element conductor 13b supported by the movable element shaft 14 as shown in the figure. Therefore, the center of the movable contact 13a is eccentric from the center of the case 1 by the dimension L. Due to this eccentricity, there are problems in that the relative position between the fixed contact 2a and the movable contact 13a is likely to change, and the external dimensions of the circuit breaker are increased depending on the structure.
【０００９】この発明は上記のような課題を解決するた
めになされたもので、第１の目的は、板厚が薄い金属板
の可動子導体でありながら可動子に必要な機械的強度を
有し、可動子導体に対する可動接点の接合強度の信頼性
を高め、製造コストが低減される装置を得るものであ
る。第２の目的は、開路時に接点部で発生するアークガ
スが引外し装置（図９において符号１７及び１８）側へ
侵入し難い装置を得るものである。The present invention has been made to solve the above problems. A first object of the present invention is to provide a mover conductor made of a metal plate having a thin plate thickness, while having a mechanical strength required for the mover. However, the reliability of the joint strength of the movable contact to the mover conductor is increased, and the manufacturing cost is reduced. A second object is to obtain a device in which arc gas generated at the contact portion when the circuit is opened is unlikely to enter the trip device (reference numerals 17 and 18 in FIG. 9) side.
【００１０】[0010]
【課題を解決するための手段】この発明にかかる回路遮
断器においては、一端に固定接点を有し合成樹脂製ケー
スの底面側に設置された固定子と、金属製の板材の中間
部を捻じって互いに９０度をなす板面を形成し、この板
面の一方の端部に固定接点に対向して可動接点を設けた
可動子と、この可動子の他方の板面の端部を支承すると
共に開閉機構に連結され、かつ、固定接点に対し可動接
点が開閉するように可動子を動作させるクロスバーとを
備えたものである。In a circuit breaker according to the present invention, a stator having a fixed contact at one end and installed on the bottom side of a synthetic resin case, and an intermediate portion of a metal plate member are twisted. Support a movable element in which a plate surface forming 90 degrees with each other is formed, and a movable contact is provided at one end of this plate surface so as to face the fixed contact, and an end of the other plate surface of the movable element. And a crossbar that is connected to the opening / closing mechanism and that operates the mover so that the movable contact opens and closes with respect to the fixed contact.
【００１１】また、可動子は金属部材を鍛造して互いに
９０度をなす板面を形成し、この板面の一方の端部に上
記固定接点に対向して可動接点を設けたものである。ま
た、可動子は、可動接点を設けた板面に隣接する板面の
部分を、可動接点を設けた板面よりもへこませて段差を
設けたものである。Further, the mover is formed by forging a metal member to form a plate surface forming 90 degrees with each other, and providing a movable contact at one end of the plate surface so as to face the fixed contact. Further, the mover is provided with a step by making a portion of the plate surface adjacent to the plate surface provided with the movable contact recessed from the plate surface provided with the movable contact.
【００１２】さらに、可動子はＬ字状の金属製の板材の
突出部を９０度折り曲げて形成した面に、固定接点に対
向して可動接点を設けると共に、上記可動接点の中心に
中心線が位置するように形成されたものである。Further, the mover is provided with a movable contact facing the fixed contact on a surface formed by bending a protruding portion of an L-shaped metal plate material by 90 degrees, and a center line is formed at the center of the movable contact. It is formed so as to be located.
【００１３】さらにまた、合成樹脂製ケースにおいて、
可動子導体の固定接点部分とクロスバー部分の間で可動
子導体がケースの底面に対し垂直になった部分に、可動
子の動作に支障が無い範囲で狭くしたスリットを有する
隔壁を設けたものである。Furthermore, in a synthetic resin case,
A partition wall with a slit narrowed within a range that does not hinder the operation of the mover, in the part where the mover conductor is perpendicular to the bottom surface of the case between the fixed contact part and the crossbar part of the mover conductor. Is.
【００１４】[0014]
【作用】上記のように構成された回路遮断器において
は、金属板製の可動子導体の一端に形成された所定幅の
板面に上記固定接点に対向する可動接点を設けると共
に、上記可動子導体の他端は上記ケースの底面に対し板
面が垂直になるように可動子導体の中間部分を９０度捻
じって形成された可動子により、可動子として必要な機
械的強度を有し、可動接点の接合強度の信頼性が高くな
る。In the circuit breaker configured as described above, the movable contact facing the fixed contact is provided on the plate surface of a predetermined width formed at one end of the movable element conductor made of a metal plate, and the movable element is provided. The other end of the conductor has a mechanical strength required as a mover by a mover formed by twisting the middle part of the mover conductor by 90 degrees so that the plate surface is perpendicular to the bottom surface of the case. The reliability of the joint strength of the movable contact is increased.
【００１５】また、金属部材を鍛造して互いに９０度を
なす板面を有する可動子を形成したので、可動子として
必要な機械的強度を有し、可動接点の接合強度の信頼性
が高くなる。また、可動接点を設けた板面に隣接する板
面の部分を、上記可動接点を設けた板面よりもへこませ
た段差が、接点部に発生するアークガスから可動子導体
を保護するように働く。また、可動子はＬ字状の金属製
の板材の突出部を９０度折り曲げて形成した面に、固定
接点に対向して可動接点を設けると共に、上記可動接点
の中心に中心線が位置するように形成したので、構成が
簡単で機械的強度を有し、可動接点の接合強度の信頼性
が高くなる。Further, since the metal member is forged to form the mover having the plate surfaces forming 90 degrees with each other, it has the mechanical strength required for the mover, and the reliability of the joining strength of the movable contact becomes high. . Further, a step formed by denting the portion of the plate surface adjacent to the plate surface provided with the movable contact from the plate surface provided with the movable contact protects the mover conductor from the arc gas generated at the contact portion. work. Further, the movable element is provided with a movable contact facing the fixed contact on a surface formed by bending a protruding portion of an L-shaped metal plate material by 90 degrees, and the center line is positioned at the center of the movable contact. Since it is formed as described above, the structure is simple and the mechanical strength is high, and the reliability of the joint strength of the movable contact is high.
【００１６】さらに、合成樹脂製ケースにおいて、可動
子導体の固定接点部分とクロスバー部分の間で可動子導
体がケースの底面に対し垂直になった部分に、可動子の
動作に支障が無い範囲で狭くしたスリットを有する隔壁
が、接点部に発生するアークガスを引外し装置側へ侵入
させないように働く。Further, in the case made of synthetic resin, in a portion where the mover conductor is perpendicular to the bottom surface of the case between the fixed contact portion and the crossbar portion of the mover conductor, a range where there is no hindrance to the operation of the mover. The partition wall having a slit narrowed by means works so as to prevent the arc gas generated at the contact portion from tripping into the device side.
【００１７】[0017]
【実施例】 実施例１．図１及び図２はこの発明の一実施例である回
路遮断器に関しモールドケースの一部分を破断して示す
もので、図１はトリップ状態の側面図、図２はオン状態
（閉合状態）の側面図である。図において、ベース１ｂ
及び可動子１３以外は上記従来の回路遮断器と同一のた
め、同一部分には同一の符号を付けて説明を省略する。
なお、ベース及び可動子においても、従来のものに相当
する部分には従来と同一の符号を付けて説明する。即
ち、図３はこの発明の一実施例である可動子１３の斜視
図であり、図において、１３ｂは可動子導体で、銅板あ
るいは黄銅板のような導電性の金属板で形成されたもの
である。この可動子導体１３ｂの一端には可動接点１３
ａが設けてある。この場合、可動子導体１３ｂの一端は
可動接点１３ａの直径寸法よりも広い幅の板面に形成さ
れ、その板面１３ｄに可動接点取付孔１３ｃを設けて可
動接点１３ａがかしめ付けされている。この可動子導体
１３ｂの中間部分１３ｅを９０度捻じることにより、可
動子導体１３ｂの他端は板面がベース１ｂの底面１ｃに
対して垂直になるように形成されている。１４は可動子
軸、１４ａは可動子軸１４を通す回転軸孔である。上記
構成の可動子１３は可動子軸１４によりクロスバー１１
（図１に示す）に回転可能に保持される。EXAMPLES Example 1. 1 and 2 show a circuit breaker according to an embodiment of the present invention by cutting a part of a molded case, FIG. 1 is a side view in a trip state, and FIG. 2 is a side view in an on state (closed state). It is a figure. In the figure, the base 1b
Since the circuit breaker is the same as the conventional circuit breaker except for the mover 13, the same parts are designated by the same reference numerals and the description thereof will be omitted.
It should be noted that, also in the base and the mover, portions corresponding to those of the related art will be described with the same reference numerals as those of the related art. That is, FIG. 3 is a perspective view of a mover 13 which is an embodiment of the present invention. In the figure, 13b is a mover conductor, which is formed of a conductive metal plate such as a copper plate or a brass plate. is there. The movable contact 13 is provided at one end of the mover conductor 13b.
a is provided. In this case, one end of the mover conductor 13b is formed on a plate surface having a width wider than the diameter of the movable contact 13a, and a movable contact mounting hole 13c is provided in the plate surface 13d to crimp the movable contact 13a. By twisting the intermediate portion 13e of the mover conductor 13b by 90 degrees, the other end of the mover conductor 13b is formed so that the plate surface is perpendicular to the bottom surface 1c of the base 1b. Reference numeral 14 is a mover shaft, and 14a is a rotary shaft hole through which the mover shaft 14 passes. The mover 13 having the above-mentioned structure is provided with the mover shaft 14 to crossbar 11
It is rotatably held (as shown in FIG. 1).
【００１８】なお、可動接点１３ａを設けた板面１３ｄ
に隣接する板面の部分を、上記板面１３ｄの部分よりも
へこませて段差１３ｆを設けてある。また、可動接点１
３ａは図３のようにかしめ付けされるものに限らず、図
４に示すように、円板状の接点あるいは四角形の接点を
ろう付けしてもよい。The plate surface 13d provided with the movable contact 13a
The portion of the plate surface adjacent to is recessed more than the portion of the plate surface 13d to provide a step 13f. In addition, the movable contact 1
3a is not limited to the one that is caulked as shown in FIG. 3, but a disc-shaped contact or a square contact may be brazed as shown in FIG.
【００１９】実施例２．上記実施例１では、可動子導体
１３ｂを金属板で形成したものを示したが、図５に示す
ように、銅材あるいは黄銅材を鍛造して形成することも
できる。即ち、可動子導体１３ｂは、一端に可動接点１
３ａの大きさに対応した所定幅の板面１３ｄを、他端に
上記所定幅の寸法より小さい厚さ寸法で、かつ、ベース
１ｂの底面に対し垂直になるように上記所定幅の板面１
３ｄに対し９０度変位した板面を冷間鍛造により形成し
たものである。たお、１３ｆは段差、１４ａは回転軸孔
である。このように可動子導体１３ｂを冷間鍛造により
形成したものであっても実施例１の金属板で形成したも
のと同様の作用効果が得られる。Example 2. Although the mover conductor 13b is formed of a metal plate in the first embodiment, it may be formed by forging a copper material or a brass material as shown in FIG. That is, the mover conductor 13b has the movable contact 1 at one end.
A plate surface 13d having a predetermined width corresponding to the size of 3a is provided at the other end so as to have a thickness smaller than the predetermined width and to be perpendicular to the bottom surface of the base 1b.
The plate surface displaced by 90 degrees with respect to 3d is formed by cold forging. The roof 13f is a step and 14a is a rotary shaft hole. Thus, even if the mover conductor 13b is formed by cold forging, the same operation and effect as those formed by the metal plate of the first embodiment can be obtained.
【００２０】実施例３．また、上記実施例１では、可動
子導体１３ｂの中間部分を９０度捻じって一端の可動接
点１３ａを設ける板面１３ｄを形成し、他端の板面がベ
ース１ｂの底面１ｃに対して垂直になるように形成した
ものであるが、図６のように曲げ加工によるものでも同
様の作用効果がえられる。即ち、図６（Ａ）は可動子１
３の平面図であり、図６（Ｂ）は側面図である。図にお
いて、可動子導体１３ｂは、Ｌ字状の板材の突出端に形
成された所定幅の板面１３ｄに可動接点１３ａを設け、
他端はベース１ｂの底面に対し板面が垂直になるように
板面１３ｄの部分を９０度折り曲げ、かつ、可動接点１
３ａの中心が可動子１３の中心線上に位置するように中
間部分を折り曲げて形成したものである。Example 3. In the first embodiment, the intermediate portion of the mover conductor 13b is twisted 90 degrees to form the plate surface 13d on which the movable contact 13a at one end is provided, and the plate surface at the other end is perpendicular to the bottom surface 1c of the base 1b. However, the same effect can be obtained by bending as shown in FIG. That is, FIG. 6A shows the mover 1
3 is a plan view of FIG. 3, and FIG. 6 (B) is a side view. In the figure, the mover conductor 13b is provided with a movable contact 13a on a plate surface 13d having a predetermined width formed on a projecting end of an L-shaped plate member,
At the other end, the plate surface 13d is bent 90 degrees so that the plate surface is perpendicular to the bottom surface of the base 1b, and the movable contact 1
The intermediate portion is bent so that the center of 3a is located on the center line of the mover 13.
【００２１】実施例４．さらに、可動子導体１３ｂの可
動接点１３ａ部分とクロスバー１１部分の間で可動子導
体１３ｂがケースの底面に対し垂直になった部分におい
て、ケース１にスリットを有する隔壁を設けることによ
り、接点部分に発生するアークガスの影響を抑制するこ
とができる。即ち、図７において、１ｅはベース１ｂと
一体に形成された隔壁で、この隔壁１ｅによりスリット
１ｄが形成される。スリット１ｄは可動子１３の動作
（矢印Ａ方向の動作）に支障が無い範囲で狭くしてあ
る。この隔壁１ｅにより、接点部分に発生するアークガ
スが引外し装置（図９において符号１７及び１８）側へ
侵入しないように抑制される。Example 4. Further, by providing a partition wall having a slit in the case 1 at a portion between the movable contact 13a portion of the mover conductor 13b and the crossbar 11 portion where the mover conductor 13b is perpendicular to the bottom surface of the case, the contact portion is provided. It is possible to suppress the influence of the arc gas generated in the. That is, in FIG. 7, 1e is a partition formed integrally with the base 1b, and the partition 1e forms the slit 1d. The slit 1d is narrowed within a range that does not interfere with the operation of the mover 13 (operation in the direction of arrow A). By this partition wall 1e, the arc gas generated at the contact portion is suppressed so as not to enter the trip device (reference numerals 17 and 18 in FIG. 9) side.
【００２２】[0022]
【発明の効果】この発明は、以上説明したように構成さ
れているので、以下に示すような効果を奏する。Since the present invention is constructed as described above, it has the following effects.
【００２３】可動子導体の一端に形成された所定幅の板
面に可動接点を設けると共に、可動子導体の他端の支承
部分はケースの底面に対し板面が垂直になるように可動
子導体の中間部分を９０度捻じって可動子を形成したの
で、開閉動作に対する支承部分の機械的強度が高く、可
動接点の接合作業性が向上するので接点接合の信頼性が
高くなり、可動子の軸支も容易になる。また、金属部材
を鍛造して互いに９０度をなす板面を有する可動子を形
成したので、可動子として必要な機械的強度を有し、可
動接点の接合強度の信頼性が高くなる。The movable contact is provided on a plate surface having a predetermined width formed at one end of the mover conductor, and the support portion at the other end of the mover conductor is arranged so that the plate surface is perpendicular to the bottom surface of the case. Since the movable part is formed by twisting the intermediate part of 90 degrees by 90 degrees, the mechanical strength of the supporting part against the opening and closing operation is high, and the workability of joining the movable contacts is improved, so the reliability of the contact joining is increased and Shaft support is also easy. Further, since the metal member is forged to form the mover having the plate surfaces forming 90 degrees with each other, it has the mechanical strength required for the mover, and the reliability of the joining strength of the movable contact becomes high.
【００２４】また、可動接点を設けた板面に隣接する板
面の部分を、可動接点を設けた板面よりもへこませた段
差により、接点部に発生するアークガスから可動子導体
が保護される。また、可動子はＬ字状の金属製の板材の
突出部を９０度折り曲げて形成したものでは、構成が簡
単で機械的強度を有し、可動接点の接合強度の信頼性が
高くなる。Further, the stepped portion indenting the plate surface portion adjacent to the plate surface provided with the movable contact from the plate surface provided with the movable contact protects the mover conductor from the arc gas generated at the contact portion. It If the mover is formed by bending the protrusion of an L-shaped metal plate at 90 degrees, it has a simple structure and mechanical strength, and the reliability of the joint strength of the movable contact is high.
【００２５】さらに、合成樹脂製ケースにおいて、可動
子導体の固定接点部分とクロスバー部分の間で可動子導
体がケースの底面に対し垂直になった部分に、可動子の
動作に支障が無い範囲で狭くしたスリットを有する隔壁
を設けたものは、この隔壁により、接点部に発生するア
ークガスがリンク機構側へ侵入しないように抑制され
る。Further, in the case made of synthetic resin, in a portion where the mover conductor is perpendicular to the bottom surface of the case between the fixed contact portion and the crossbar portion of the mover conductor, a range where there is no hindrance to the operation of the mover. In the case where the partition wall having the slits narrowed by is provided, the partition wall suppresses the arc gas generated at the contact portion from entering the link mechanism side.
【図１】 この発明の一実施例である回路遮断器のトリ
ップ状態を示す一部破断側面図である。FIG. 1 is a partially cutaway side view showing a trip state of a circuit breaker according to an embodiment of the present invention.
【図２】 この発明の一実施例である回路遮断器のオン
状態を示す一部破断側面図である。FIG. 2 is a partially cutaway side view showing an ON state of a circuit breaker according to an embodiment of the present invention.
【図３】 この発明の実施例を示す可動子の斜視図であ
る。FIG. 3 is a perspective view of a mover showing an embodiment of the present invention.
【図４】 この発明の他の実施例を示す可動子の斜視図
である。FIG. 4 is a perspective view of a mover showing another embodiment of the present invention.
【図５】 この発明の実施例２を示す可動子の斜視図で
ある。FIG. 5 is a perspective view of a mover showing a second embodiment of the present invention.
【図６】 この発明の実施例３を示す可動子で、（Ａ）
は正面図、（Ｂ）は側面図である。FIG. 6 is a mover showing a third embodiment of the present invention (A)
Is a front view and (B) is a side view.
【図７】 この発明の実施例４を示す可動子部分の斜視
図である。FIG. 7 is a perspective view of a mover portion showing Embodiment 4 of the present invention.
【図８】 従来の回路遮断器のトリップ状態を示す側面
図である。FIG. 8 is a side view showing a trip state of a conventional circuit breaker.
【図９】 従来の回路遮断器のオン状態を示す側面図で
ある。FIG. 9 is a side view showing an ON state of a conventional circuit breaker.
【図１０】 従来の回路遮断器の可動子示す斜視図であ
る。FIG. 10 is a perspective view showing a mover of a conventional circuit breaker.
【図１１】 従来の回路遮断器の可動子示す斜視図であ
る。FIG. 11 is a perspective view showing a mover of a conventional circuit breaker.
【図１２】 従来の回路遮断器の可動子示す斜視図であ
る。FIG. 12 is a perspective view showing a mover of a conventional circuit breaker.
【図１３】 図１２の可動子を多極回路遮断器に組込ん
だ状態を示す説明図である。FIG. 13 is an explanatory view showing a state where the mover of FIG. 12 is incorporated in a multi-pole circuit breaker.
１ ケース、１ａ カバー、１ｂ ベース、１ｃ 底
面、２ 固定子、２ａ固定接点、１１ クロスバー、１
３ 可動子、１３ａ 可動接点、１３ｂ 可動子導体、
１３ｄ 板面、１３ｅ 中間部分、１３ｆ 段差。1 case, 1a cover, 1b base, 1c bottom surface, 2 stator, 2a fixed contact, 11 crossbar, 1
3 mover, 13a mover contact, 13b mover conductor,
13d plate surface, 13e middle part, 13f step.
フロントページの続き (72)発明者 寺沢 雅美 福山市緑町１番８号 三菱電機株式会社福 山製作所内 (72)発明者 松本 茂 福山市緑町１番８号 三菱電機エンジニア リング株式会社姫路事業所福山支所内Front page continuation (72) Inventor Masami Terasawa 1-8 Midoricho, Fukuyama-shi Fukuyama Factory (72) Inventor Shigeru Matsumoto 1-8 Midori-cho, Fukuyama-shi Mitsubishi Electric Engineer Ring Co., Ltd. Himeji Works Fukuyama In the branch
Claims (5)
の底面側に設置された固定子と、金属製の板材の中間部
を捻じって互いに９０度をなす板面を形成し、この板面
の一方の端部に上記固定接点に対向して可動接点を設け
た可動子と、この可動子の他方の板面の端部を支承する
と共に開閉機構に連結され、かつ、上記固定接点に対し
可動接点が開閉するように上記可動子を動作させるクロ
スバーとを備えたことを特徴とする回路遮断器。1. A stator having a fixed contact at one end, which is installed on the bottom side of a synthetic resin case, and a middle part of a metal plate member are twisted to form a plate surface forming 90 degrees with each other. A mover having a movable contact at one end of the plate surface facing the fixed contact, and an end of the other plate surface of the mover supported and connected to an opening / closing mechanism, and the fixed contact. In contrast, a circuit breaker having a crossbar that operates the mover so that the movable contact opens and closes.
の底面側に設置された固定子と、金属部材を鍛造して互
いに９０度をなす板面を形成し、この板面の一方の端部
に上記固定接点に対向して可動接点を設けた可動子と、
この可動子の他方の板面の端部を支承すると共に開閉機
構に連結され、かつ、上記固定接点に対し可動接点が開
閉するように上記可動子を動作させるクロスバーとを備
えたことを特徴とする回路遮断器。2. A stator, which has a fixed contact at one end and is installed on the bottom side of a synthetic resin case, and a metal member are forged to form plate surfaces that form 90 degrees with each other. A mover provided with a movable contact at the end facing the fixed contact,
A cross bar that supports the end of the other plate surface of the mover, is connected to the opening / closing mechanism, and operates the mover so that the movable contact opens and closes with respect to the fixed contact. And circuit breaker.
隣接する板面の部分を、上記可動接点を設けた板面より
もへこませて段差を設けたことを特徴とする請求項１ま
たは２記載の回路遮断器。3. The mover conductor is characterized in that a portion of the plate surface adjacent to the plate surface provided with the movable contact is recessed from the plate surface provided with the movable contact to provide a step. The circuit breaker according to Item 1 or 2.
の底面側に設置された固定子と、Ｌ字状の金属製の板材
の一端の突出部を９０度折り曲げて形成した面に、上記
固定接点に対向して可動接点を設け、この可動接点の中
心に中心線が位置するように形成された可動子と、この
可動子の他端を支承すると共に開閉機構に連結され、か
つ、上記固定接点に対し可動接点が開閉するように可動
子を動作させるクロスバーとを備えたことを特徴とする
回路遮断器。4. A stator, which has a fixed contact at one end and is installed on the bottom side of a synthetic resin case, and a surface formed by bending an end portion of an L-shaped metal plate member at 90 degrees, A movable contact is provided so as to face the fixed contact, a movable element formed so that a center line is located at the center of the movable contact, and the other end of the movable element is supported and connected to an opening / closing mechanism, and A circuit breaker comprising: a crossbar that operates a mover so that a movable contact opens and closes with respect to the fixed contact.
の可動接点部分とクロスバー部分の間で可動子導体がケ
ースの底面に対し垂直になった部分に、可動子の動作に
支障が無い範囲で狭くしたスリットを有する隔壁を設け
たことを特徴とする請求項１〜請求項４のいずれか一項
記載の回路遮断器。5. In the synthetic resin case, a range where the mover conductor is perpendicular to the bottom surface of the case between the movable contact part and the crossbar part of the mover conductor, where there is no hindrance to the operation of the mover. The circuit breaker according to any one of claims 1 to 4, further comprising a partition wall having a slit narrowed by.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20511794A JP3230197B2 (en) | 1994-08-30 | 1994-08-30 | Circuit breaker |
| TW083109166A TW288148B (en) | 1994-08-30 | 1994-10-04 | |
| SG1996003327A SG48879A1 (en) | 1994-08-30 | 1994-12-13 | Circuit breaker |
| DE69409526T DE69409526T3 (en) | 1994-08-30 | 1994-12-13 | breakers |
| EP94119681A EP0709868B2 (en) | 1994-08-30 | 1994-12-13 | Circuit breaker |
| CN95116937A CN1039858C (en) | 1994-08-30 | 1995-08-28 | Circuit breaker |
| KR1019950026795A KR0170540B1 (en) | 1994-08-30 | 1995-08-28 | Circuit breaker |
| HK98110682A HK1010073A1 (en) | 1994-08-30 | 1998-09-17 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20511794A JP3230197B2 (en) | 1994-08-30 | 1994-08-30 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0869740A true JPH0869740A (en) | 1996-03-12 |
| JP3230197B2 JP3230197B2 (en) | 2001-11-19 |
Family
ID=16501709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20511794A Ceased JP3230197B2 (en) | 1994-08-30 | 1994-08-30 | Circuit breaker |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0709868B2 (en) |
| JP (1) | JP3230197B2 (en) |
| KR (1) | KR0170540B1 (en) |
| CN (1) | CN1039858C (en) |
| DE (1) | DE69409526T3 (en) |
| HK (1) | HK1010073A1 (en) |
| SG (1) | SG48879A1 (en) |
| TW (1) | TW288148B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6124930B2 (en) * | 2014-05-02 | 2017-05-10 | 日新製鋼株式会社 | Martensitic stainless steel sheet and metal gasket |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB207363A (en) | 1922-11-07 | 1923-11-29 | William Preston | Improvements in or relating to electric switches |
| DE1138139B (en) | 1960-05-13 | 1962-10-18 | Licentia Gmbh | Contact arrangement made of flat material |
| GB926076A (en) | 1960-08-25 | 1963-05-15 | Bryant Electric Co | Electric circuit breakers |
| US3311729A (en) | 1965-10-04 | 1967-03-28 | Deringer Mfg Company | Electrical contact and method of forming the same |
| US3329913A (en) | 1966-01-28 | 1967-07-04 | Heinemann Electric Co | Circuit breaker mechanism |
| US3464040A (en) * | 1967-09-21 | 1969-08-26 | Gen Electric | Compact circuit breaker construction |
| US3564184A (en) * | 1969-01-27 | 1971-02-16 | Gen Electric | Electric circuit breaker |
| US3562467A (en) | 1969-06-04 | 1971-02-09 | Engelhard Min & Chem | Electrical contact |
| DE2525810C3 (en) | 1975-06-06 | 1986-02-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | DC and AC voltage switching air contactor with higher switching capacity with permanent magnetic arc blowing system |
| JPS53144446A (en) | 1977-05-24 | 1978-12-15 | Kurata Denshi Kk | Stamping of l or t shaped element with cylindrical handle and said element produced by said stamping |
| JPS54150678A (en) † | 1978-05-19 | 1979-11-27 | Tetsuo Takano | Square electric contact |
| FR2541520B1 (en) | 1983-02-21 | 1985-07-19 | Merlin Gerin | ELECTRIC CONTACT PART AND MANUFACTURING METHOD THEREOF |
| JPH0532922Y2 (en) | 1986-09-09 | 1993-08-23 | ||
| US5286934A (en) | 1991-09-23 | 1994-02-15 | General Electric Company | Molded case circuit breaker movable contact arm arrangement |
| JPH05101764A (en) | 1991-10-08 | 1993-04-23 | Toshiba Corp | Manufacture of movable contact of circuit breaker |
| US5302787A (en) * | 1992-05-05 | 1994-04-12 | Square D Company | Automatic miniature circuit breaker with Z-axis assemblable contact assembly |
-
1994
- 1994-08-30 JP JP20511794A patent/JP3230197B2/en not_active Ceased
- 1994-10-04 TW TW083109166A patent/TW288148B/zh not_active IP Right Cessation
- 1994-12-13 SG SG1996003327A patent/SG48879A1/en unknown
- 1994-12-13 EP EP94119681A patent/EP0709868B2/en not_active Expired - Lifetime
- 1994-12-13 DE DE69409526T patent/DE69409526T3/en not_active Expired - Lifetime
-
1995
- 1995-08-28 CN CN95116937A patent/CN1039858C/en not_active Expired - Fee Related
- 1995-08-28 KR KR1019950026795A patent/KR0170540B1/en not_active IP Right Cessation
-
1998
- 1998-09-17 HK HK98110682A patent/HK1010073A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1039858C (en) | 1998-09-16 |
| TW288148B (en) | 1996-10-11 |
| SG48879A1 (en) | 1998-05-18 |
| EP0709868A1 (en) | 1996-05-01 |
| DE69409526T2 (en) | 1998-08-06 |
| DE69409526D1 (en) | 1998-05-14 |
| HK1010073A1 (en) | 1999-06-11 |
| JP3230197B2 (en) | 2001-11-19 |
| CN1123457A (en) | 1996-05-29 |
| EP0709868B2 (en) | 2002-10-16 |
| KR0170540B1 (en) | 1999-03-30 |
| DE69409526T3 (en) | 2003-06-12 |
| KR960008890A (en) | 1996-03-22 |
| EP0709868B1 (en) | 1998-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0727750B2 (en) | Circuit breaker | |
| JPH0869740A (en) | Circuit breaker | |
| JPH1116476A (en) | Circuit breaker | |
| JP2001256873A (en) | Heat sensitive switch | |
| JPH0643993Y2 (en) | Circuit breaker | |
| JP3296460B2 (en) | Circuit breaker | |
| EP0708470B1 (en) | An automatic circuit breaker with a thermal protection unit | |
| JP2890811B2 (en) | Circuit breaker trip crossbar | |
| JP2741008B2 (en) | Pushbutton switch with overload circuit breaker | |
| JPH07123020B2 (en) | Circuit breaker | |
| JP3298389B2 (en) | Thermal overload relay | |
| KR200208216Y1 (en) | Combined structure of thermal overload relay terminal block | |
| JP2867721B2 (en) | Circuit breaker trip current adjustment mechanism | |
| JP3303965B2 (en) | Thermal overload relay | |
| JPH09298025A (en) | Trip current adjusting mechanism for circuit breaker | |
| JP3153579B2 (en) | Circuit breaker | |
| JP3344116B2 (en) | Neutral device for circuit breakers | |
| JPH0512981A (en) | Over-current tripping device for circuit breaker | |
| JP3328996B2 (en) | Circuit breaker | |
| JP2001052580A (en) | Thermally-actuated switch | |
| JP2784132B2 (en) | Thermo switch | |
| JPH0715088Y2 (en) | Circuit breaker | |
| JPH09115411A (en) | Circuit breaker | |
| JP2000323005A (en) | Circuit breaker | |
| JPH05274988A (en) | Movable contact device of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RVOP | Cancellation by post-grant opposition |