JP2002208339A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JP2002208339A JP2002208339A JP2001004816A JP2001004816A JP2002208339A JP 2002208339 A JP2002208339 A JP 2002208339A JP 2001004816 A JP2001004816 A JP 2001004816A JP 2001004816 A JP2001004816 A JP 2001004816A JP 2002208339 A JP2002208339 A JP 2002208339A
- Authority
- JP
- Japan
- Prior art keywords
- movable contact
- stopper pin
- circuit breaker
- stopper
- arc
- 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
Landscapes
- Breakers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、回路遮断器の開
閉機構に関し、特に、可動接触子の最大開離位置を規制
するストッパーの改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching mechanism for a circuit breaker, and more particularly to an improvement in a stopper for regulating a maximum opening position of a movable contact.
【０００２】[0002]
【従来の技術】図９，図１０は、例えば特開平１１- ４
００３９号公報に示された従来の回路遮断器を示すもの
で、一部を切り欠いだ断面図であり、図９は閉路状態、
図１０は電磁反発動作により開路した状態を示す。図に
おいて、１は回路遮断器の筐体であり、ベース１ａと、
カバー１ｂとで構成されている。２はベース１ａに装着
された固定接触子、３は固定接点、４は固定接触子２に
対向して接離する可動接触子、５は可動接触子４の先端
部に固着された可動接点である。６は合成樹脂製のホル
ダ（一般的にはクロスバ−と言う場合もある）であり、
可動接触子４を回転軸７で回動自在に保持している。８
は開閉機構部であり、トグルリンク（図示せず）を介し
てホルダ６を回動させ、可動接点５を固定接点３から開
離させる。１４は可動接触子４への通電路である可撓導
体である。１５はラッチピン、１６はばね受け、１７は
コイル状圧縮ばねで構成されている限流ばねで、可動接
点５と固定接点３の間の接触圧力を生じるように働くば
ねである。１８はストッパーピンであり、ベース１ａの
上端面とカバーの１ｂの下端面に形成される凹部の間に
挟まれ保持されている。１９は遮断動作時に接点間に発
生したアークを消孤する消孤装置である。2. Description of the Related Art FIG. 9 and FIG.
FIG. 9 is a cross-sectional view of a conventional circuit breaker disclosed in Japanese Patent Application Publication No. 0039, which is partially cut away, and FIG.
FIG. 10 shows a state where the circuit is opened by the electromagnetic repulsion operation. In the figure, reference numeral 1 denotes a housing of a circuit breaker, and a base 1a;
And a cover 1b. Reference numeral 2 denotes a fixed contact mounted on the base 1a, 3 denotes a fixed contact, 4 denotes a movable contact which faces and separates from the fixed contact 2, and 5 denotes a movable contact fixed to the tip of the movable contact 4. is there. Reference numeral 6 denotes a synthetic resin holder (generally referred to as a crossbar).
The movable contact 4 is rotatably held by a rotating shaft 7. 8
Reference numeral denotes an opening / closing mechanism, which rotates the holder 6 via a toggle link (not shown) to separate the movable contact 5 from the fixed contact 3. Reference numeral 14 denotes a flexible conductor that is a current path to the movable contact 4. Reference numeral 15 denotes a latch pin, 16 denotes a spring receiver, and 17 denotes a current-limiting spring constituted by a coiled compression spring, which is a spring acting to generate a contact pressure between the movable contact 5 and the fixed contact 3. Reference numeral 18 denotes a stopper pin which is sandwiched and held between the upper end surface of the base 1a and the concave portion formed on the lower end surface of the cover 1b. Reference numeral 19 designates an extinguishing device for extinguishing an arc generated between the contacts during the breaking operation.
【０００３】次に、動作について概略を説明する。図９
に示す回路遮断器が閉路状態において、短絡電流等の大
電流が流れると、可動接触子４と固定接触子２との間に
電磁反発力が働き、可動接触子４を回転軸７を中心に図
中で反時計方向へ回動させる力が発生する。この電磁反
発力により可動接触子４が固定接触子２から一時的に開
離する。このとき、可動接触子４の先端部はストッパー
ピン１８に衝突してその位置以上に回動しないようにな
されている。即ち、可動接触子４の電磁反発による開閉
機構部８などの破損を防止するようになされている。こ
の電磁反発に続いて過電流引外し機構（図示せず）の働
きにより開閉機構部８がトリップ状態になり、可動接触
子４と固定接触子２とが安全な状態に開離される。Next, the operation will be briefly described. FIG.
When a large current such as a short-circuit current flows in the closed state of the circuit breaker shown in (1), an electromagnetic repulsion acts between the movable contact 4 and the fixed contact 2 to move the movable contact 4 about the rotation shaft 7. In the figure, a force for turning in the counterclockwise direction is generated. The movable contact 4 is temporarily separated from the fixed contact 2 by the electromagnetic repulsion. At this time, the tip of the movable contact 4 collides with the stopper pin 18 so as not to rotate beyond that position. In other words, the opening and closing mechanism 8 and the like due to the electromagnetic repulsion of the movable contact 4 are prevented from being damaged. Following the electromagnetic repulsion, the opening / closing mechanism 8 is tripped by the action of an overcurrent tripping mechanism (not shown), and the movable contact 4 and the fixed contact 2 are separated to a safe state.
【０００４】[0004]
【発明が解決しようとする課題】上記のように構成され
た回路遮断器においては、可動接触子４の最大開離位置
を規制するストッパーピン１８は、ベース１ａとカバー
１ｂの合わせ面に設けられた凹部の間に挟みこんで組立
てなければならず、また、メンテナンスによる内部点検
等でカバー１ｂを着脱時にストッパーピン１８が脱落す
る恐れがあり、組立作業性が悪いという問題点があっ
た。In the circuit breaker constructed as described above, the stopper pin 18 for regulating the maximum opening position of the movable contact 4 is provided on the mating surface between the base 1a and the cover 1b. In addition, there is a problem that the stopper pin 18 may fall off when the cover 1b is attached or detached during internal inspection or the like due to maintenance, and the assembling workability is poor.
【０００５】この発明は、かかる問題点を解決するため
になされたもので、可動接触子の最大開離位置を規制す
るストッパーピンの組立作業性を向上させた回路遮断器
を得ることを目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the invention is to provide a circuit breaker with improved workability of assembling a stopper pin for restricting a maximum opening position of a movable contact. I have.
【０００６】[0006]
【課題を解決するための手段】この発明に係る回路遮断
器においては、合成樹脂製のベ−スと、このベ−スに装
着された固定接触子と、固定接触子に対向して接離する
可動接触子と、可動接触子を開閉動作させる開閉機構部
と、一対の消弧側板で消弧素子を保持して構成され可動
接触子の先端部に配設された消弧装置と、上記可動接触
子、開閉機構部、消弧素子などを覆う合成樹脂製のカバ
−とを備えた回路遮断器において、可動接触子の開離時
に可動接触子の最大開離位置を規制するストッパーピン
を、消弧側板に穿設したストッパーピン保持孔により保
持したものである。In a circuit breaker according to the present invention, a base made of a synthetic resin, a fixed contact mounted on the base, and a contact / separation opposed to the fixed contact. A movable contact, an opening / closing mechanism for opening and closing the movable contact, an arc extinguishing device configured to hold an arc extinguishing element with a pair of arc extinguishing side plates and disposed at a tip end of the movable contact, In a circuit breaker including a movable contact, an opening / closing mechanism, and a cover made of synthetic resin covering an arc extinguishing element, a stopper pin for regulating a maximum opening position of the movable contact when the movable contact is opened. Are held by stopper pin holding holes formed in the arc-extinguishing side plate.
【０００７】また、ストッパーピンの両端に半円柱状の
段部を設け、消弧側板のストッパーピン保持孔を上記半
円柱状の段部が嵌まる大きさのＤ字状にして、このスト
ッパーピン保持孔によりストッパーピンを保持したもの
である。[0007] Further, a semi-cylindrical step is provided at both ends of the stopper pin, and the stopper pin holding hole of the arc-extinguishing side plate is formed in a D-shape large enough to fit the semi-cylindrical step. The stopper pin is held by the holding hole.
【０００８】また、ストッパーピンの両端に小円柱状の
段部を設け、消弧側板のストッパーピン保持孔を上記小
円柱状の段部が嵌まる大きさの円形状にして、このスト
ッパーピン保持孔によりストッパーピンを保持したもの
である。In addition, small columnar steps are provided at both ends of the stopper pin, and the stopper pin holding holes of the arc-extinguishing side plate are formed in a circular shape having a size enough to fit the small columnar steps. The stopper pin is held by a hole.
【０００９】さらに、消弧側板のストッパーピン保持孔
を長孔にし、カバ−の内面にストッパーピン用のストッ
パー部を形成し、可動接触子の開離時にストッパーピン
が上記カバ−の内面に形成したストッパー部により停止
されるようにしたものである。Further, the stopper pin holding hole of the arc extinguishing side plate is elongated, a stopper portion for the stopper pin is formed on the inner surface of the cover, and the stopper pin is formed on the inner surface of the cover when the movable contact is released. It is designed to be stopped by the stopped stopper portion.
【００１０】[0010]
【発明の実施の形態】実施の形態１．図１は、この発明
の実施の形態１を示す回路遮断器であり、一部を切り欠
いた正面断面図である。図２は図１の回路遮断器の消弧
装置を示す平面図、図３は図２に示す消弧装置の正面図
である。図４は、図１に示す回路遮断器の可動接触子が
閉路状態であるときを示す要部拡大断面図である。図５
は、図１に示す回路遮断器の可動接触子が開路状態であ
るときを示す要部拡大断面図であり、（Ａ）は側面図、
（Ｂ）は正面図である。図６は、消弧装置の要部を示す
拡大斜視図である。図において、１は筐体であり、ベー
ス１ａとカバー１ｂとで構成されている。２は固定接触
子、３は固定接点、４は可動接触子、５は可動接点、６
は合成樹脂製のホルダ、７は回転軸、８は開閉機構部
で、これらは上記従来装置と同様のものであり、その説
明を省略する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a front sectional view of a circuit breaker according to a first embodiment of the present invention, which is partially cut away. FIG. 2 is a plan view showing an arc extinguishing device of the circuit breaker of FIG. 1, and FIG. 3 is a front view of the arc extinguishing device shown in FIG. FIG. 4 is an enlarged sectional view of a main part when the movable contact of the circuit breaker shown in FIG. 1 is in a closed state. FIG.
FIG. 2 is an enlarged sectional view of a main part showing a state where a movable contact of the circuit breaker shown in FIG. 1 is in an open circuit state, (A) is a side view,
(B) is a front view. FIG. 6 is an enlarged perspective view showing a main part of the arc extinguishing device. In the figure, reference numeral 1 denotes a housing, which is composed of a base 1a and a cover 1b. 2 is a fixed contact, 3 is a fixed contact, 4 is a movable contact, 5 is a movable contact, 6
Is a holder made of synthetic resin, 7 is a rotating shaft, 8 is an opening / closing mechanism, which are the same as those of the above-mentioned conventional device, and the description thereof will be omitted.
【００１１】３０は消弧装置であり、固定接点３と可動
接点５の間に発生したアークを冷却して消孤する複数の
消孤板３１と、この消孤板３１を保持する一対の消孤側
板３２と、この消孤側板３２に組み込まれたストッパー
ピン３３とを有し、一体に構成されている。また、図３
に示すように、消孤側板３２には各消孤板３１の両端に
形成された突起３１ａと嵌合する複数の係合孔３２ａ
と、ストッパーピン３３が挿着されるＤ字状のストッパ
ーピン保持孔３２ｂ（以下ピン保持孔３２ｂという）が
形成されている。なお、このピン保持孔３２ｂの位置
は、可動接触子４があらかじめ設定した最大開離位置ま
で開離したとき、可動接触子４の先端部がストッパーピ
ン３３に当設する位置に形成されている。Reference numeral 30 denotes an arc extinguishing device. The arc extinguishing device 31 cools an arc generated between the fixed contact 3 and the movable contact 5 and extinguishes the arc, and a pair of extinguishing plates 31 holding the extinguishing plate 31. It has an arcuate side plate 32 and a stopper pin 33 incorporated in the arcuate side plate 32, and is integrally formed. FIG.
As shown in FIG. 5, the extinction side plate 32 has a plurality of engagement holes 32a that are fitted with protrusions 31a formed at both ends of each extinction plate 31.
And a D-shaped stopper pin holding hole 32b (hereinafter, referred to as a pin holding hole 32b) into which the stopper pin 33 is inserted. The position of the pin holding hole 32b is formed at a position where the tip of the movable contact 4 abuts the stopper pin 33 when the movable contact 4 is separated to a preset maximum separation position. .
【００１２】ストッパーピン３３の両端部には図４〜図
６に示すように半円柱状の段部３３ａが形成され、この
段部３３ａを消弧装置３０の消孤側板３２に形成された
Ｄ字状のピン保持孔３２ｂに挿入し、一対の消孤側板３
２により両側からストッパーピン３３を挟み込んで保持
するように構成されている。また、ピン保持孔３２ｂの
形状は、図６に示すように、一部分に平行する直線部３
２ｃを設けて長孔状に形成されている。なお、この直線
部３２ｃは、ストッパーピン３３がピン保持孔３２ｂの
中で矢印方向、即ち、可動接触子４の先端部の動作の軌
跡方向に移動できるように形成されている。4 to 6, a semi-cylindrical step 33a is formed at both ends of the stopper pin 33. The step 33a is formed on the isolated side plate 32 of the arc extinguishing device 30. And inserted into the pin-shaped pin holding hole 32b.
2 is configured to sandwich and hold the stopper pin 33 from both sides. The shape of the pin holding hole 32b is, as shown in FIG.
2c is formed in a long hole shape. The linear portion 32c is formed so that the stopper pin 33 can move in the direction of the arrow in the pin holding hole 32b, that is, in the direction of the trajectory of the movement of the distal end of the movable contact 4.
【００１３】図４に示すように、固定接触子２と可動接
触子４が閉路状態においては、ストッパーピン３３は消
弧装置３０の消孤側板３２により位置決めされている。
次に、図５に示す固定接触子２と可動接触子４が開路状
態、即ち、可動接触子４が短絡電流等の大電流の通電に
よる電磁反発力により、固定接触子２から矢印方向に開
離した状態においては、ストッパーピン３３は可動接触
子４の衝突により矢印方向に押し上げられる。この時、
ストッパーピン３３の両端部は、図５（Ａ）に示すよう
に、カバ−１ｂの内面に形成されたストッパーピン用の
ストッパー部１ｓに衝突するようになされている。上記
のように、ストッパーピン３３とストッパー部１ｓによ
りこの反発力を受けるとともに、最大開離位置が決ま
る。また、このとき、消孤側板３２のピン保持孔３２ｂ
とストッパーピン３３との間にはギヤップＧがあり、消
弧側板３２はこの反発力を直接受けない構造となってい
る。従って、消弧側板３２が絶縁紙製の機械的強度が低
いものであっても、消弧装置３０の変形や破損が防止さ
れる。As shown in FIG. 4, when the fixed contact 2 and the movable contact 4 are closed, the stopper pin 33 is positioned by the isolated side plate 32 of the arc extinguishing device 30.
Next, the fixed contact 2 and the movable contact 4 shown in FIG. 5 are in the open state, that is, the movable contact 4 is opened in the direction of the arrow from the fixed contact 2 by the electromagnetic repulsive force caused by the application of a large current such as a short-circuit current. In the separated state, the stopper pin 33 is pushed up in the direction of the arrow by the collision of the movable contact 4. At this time,
As shown in FIG. 5A, both end portions of the stopper pin 33 are configured to collide with a stopper portion 1s for the stopper pin formed on the inner surface of the cover-1b. As described above, this repulsive force is received by the stopper pin 33 and the stopper portion 1s, and the maximum separation position is determined. Also, at this time, the pin holding hole 32b of the isolated side plate 32
There is a gap G between the shaft and the stopper pin 33, and the arc-extinguishing side plate 32 is structured not to directly receive the repulsive force. Therefore, even if the arc-extinguishing side plate 32 is made of insulating paper and has low mechanical strength, the arc-extinguishing device 30 is prevented from being deformed or damaged.
【００１４】実施の形態２．上記実施の形態１では消弧
装置３０のストッパーピン３３の両端部に半円柱状の段
部３３ａを形成し、消孤側板３２の保持孔３２ｂをＤ字
状に形成し、一対の消孤側板３２によりストッパーピン
３３を挟み込むように構成したが、図７，図８に示すよ
うに、ストッパーピン４３の両端部を小円柱状の段部４
３ａに形成し、この小円柱状の段部４３ａに遊嵌される
長孔のピン係合孔３２ｅを一対の消孤側板３２に形成し
ても、実施の形態１と同様の効果が得られる。この場
合、一点鎖線で示すように、切り割り部３２ｆを設けれ
ば、消孤板３１と消弧側板３２を組合わせ後であっても
ストッパーピン３３を嵌込みできる。Embodiment 2 FIG. In the first embodiment, semi-cylindrical steps 33a are formed at both ends of the stopper pin 33 of the arc extinguishing device 30, the holding holes 32b of the extinguishing side plates 32 are formed in a D shape, and a pair of extinguishing side plates are formed. Although the stopper pin 33 is sandwiched between the stopper pins 32, as shown in FIG. 7 and FIG.
3a, the same effect as that of the first embodiment can be obtained by forming the long pin engaging hole 32e which is loosely fitted in the small cylindrical step 43a in the pair of extinction side plates 32. . In this case, as shown by the one-dot chain line, the provision of the cut portion 32f allows the stopper pin 33 to be fitted even after the arc-extinguishing plate 31 and the arc-extinguishing side plate 32 have been combined.
【００１５】なお、上記の実施の形態１及び２におい
て、ストッパーピン３３の両端部が、カバ−１の内面に
形成されたストッパーピン用のストッパー部１ｓに衝突
するようになされたものを示したが、ストッパーピン３
３の中央部が衝突するようになされたストッパー部１ｓ
をカバ−の内面に形成してもよい。また、機械的強度が
高い消弧側板３２を用いれば、カバ−１の内面のストッ
パー部１ｓを不要することができる。In the first and second embodiments, both ends of the stopper pin 33 collide with the stopper pin stopper 1s formed on the inner surface of the cover-1. But the stopper pin 3
Stopper part 1s made so that the central part of 3 may collide
May be formed on the inner surface of the cover. In addition, if the arc-extinguishing side plate 32 having high mechanical strength is used, the stopper portion 1s on the inner surface of the cover 1 can be omitted.
【００１６】さらに、上記の実施の形態によるストッパ
ーピン３３は、３極の回路遮断器の場合、開閉機構部が
ある中央極にのみ実施し、両側の極は可動接触子４の先
端が、直接カバ−の内面に当たるようにできるが、部品
を共通にするために、両側の極にも実施の形態１及び２
のストッパーピン３３を実施してもよい。また、消弧装
置３０は、アークを冷却して消孤する複数の消孤板３１
を用いたものを示したが、消孤板３１は消孤線輪など他
の消孤素子であってもよい。Further, in the case of a three-pole circuit breaker, the stopper pin 33 according to the above-described embodiment is implemented only at the center pole where the opening / closing mechanism is provided. The inner surface of the cover can be contacted, but in order to make the parts common, the poles on both sides are used in the first and second embodiments.
May be implemented. Further, the arc extinguishing device 30 includes a plurality of extinguishing plates 31 that cool and extinguish the arc.
However, the extinction plate 31 may be another extinction element such as an extinction line loop.
【００１７】[0017]
【発明の効果】この発明にかかる回路遮断器は、可動接
触子の最大開離位置を位置決めするストッパーピンを、
消弧装置の支持枠により保持し、消弧装置と一体に構成
するようにしたので、組立時や修理時にストッパーピン
が脱落することがなくなり、組立作業性を改善できる。According to the circuit breaker of the present invention, the stopper pin for positioning the maximum open position of the movable contact is provided.
Since it is held by the support frame of the arc extinguishing device and is configured integrally with the arc extinguishing device, the stopper pin does not fall off during assembling or repair, and the assembling workability can be improved.
【図１】 本発明の実施の形態１を示す回路遮断器の正
面断面図である。FIG. 1 is a front sectional view of a circuit breaker according to Embodiment 1 of the present invention.
【図２】 図１の回路遮断器の消弧装置を示す平面図で
ある。FIG. 2 is a plan view showing an arc extinguishing device of the circuit breaker of FIG. 1;
【図３】 図２に示す消弧装置の正面図である。FIG. 3 is a front view of the arc extinguishing device shown in FIG. 2;
【図４】 図１に示す回路遮断器が閉路状態であるとき
を示す要部拡大断面図である。FIG. 4 is an enlarged sectional view of a main part when the circuit breaker shown in FIG. 1 is in a closed state.
【図５】 図１に示す回路遮断器が開路状態であるとき
を示す要部拡大断面図である。FIG. 5 is an enlarged sectional view of a main part when the circuit breaker shown in FIG. 1 is in an open circuit state.
【図６】 この発明の実施の形態１の消弧装置の要部を
示す拡大斜視図である。FIG. 6 is an enlarged perspective view showing a main part of the arc extinguishing device according to Embodiment 1 of the present invention.
【図７】 この発明の実施の形態２の消弧装置の要部を
示す拡大斜視図である。FIG. 7 is an enlarged perspective view illustrating a main part of an arc extinguishing device according to Embodiment 2 of the present invention.
【図８】 この発明の実施の形態２のストッパーピンを
示す拡大斜視図である。FIG. 8 is an enlarged perspective view showing a stopper pin according to Embodiment 2 of the present invention.
【図９】 従来の回路遮断器を示す一部を切り欠いた断
面図であり、閉路状態を示す。FIG. 9 is a partially cutaway sectional view showing a conventional circuit breaker, showing a closed state.
【図１０】 従来の回路遮断器を示す一部を切り欠いた
断面図であり、電磁反発動作により開路した状態を示
す。FIG. 10 is a partially cutaway cross-sectional view showing a conventional circuit breaker, showing a state opened by an electromagnetic repulsion operation.
１ａ ベ−ス、１ｂ カバ−、１ｓ ストッパー部、２
固定接触子、３ 固定接点、４ 可動接触子、５ 可
動接点、８ 開閉機構部、３０ 消弧装置、３１ 消孤
板、３２ 消孤側板、３２ｂ，３２ｅ ストッパーピン
保持孔、３３，４３ ストッパーピン、３３ａ 半円柱
状の段部。1a base, 1b cover, 1s stopper, 2
Fixed contact, 3 fixed contact, 4 movable contact, 5 movable contact, 8 opening / closing mechanism, 30 arc extinguishing device, 31 extinguishing plate, 32 extinguishing side plate, 32b, 32e Stopper pin holding hole, 33, 43 Stopper pin , 33a a semi-cylindrical step.
Claims (4)
着された固定接触子と、上記固定接触子に対向して接離
する可動接触子と、上記可動接触子を開閉動作させる開
閉機構部と、一対の消弧側板で消弧素子を保持して構成
され上記可動接触子の先端部に配設された消弧装置と、
上記可動接触子、開閉機構部、消弧素子などを覆う合成
樹脂製のカバ−とを備えた回路遮断器において、上記可
動接触子の開離時に上記可動接触子の最大開離位置を規
制するストッパーピンを、上記消弧側板に形成したスト
ッパーピン保持孔により保持したことを特徴とする回路
遮断器。1. A base made of synthetic resin, a fixed contact mounted on the base, a movable contact opposed to and separated from the fixed contact, and an opening and closing operation of the movable contact. An opening / closing mechanism to be performed, an arc extinguishing device configured to hold an arc extinguishing element with a pair of arc extinguishing side plates and disposed at a distal end portion of the movable contact,
In a circuit breaker provided with a cover made of synthetic resin that covers the movable contact, the opening / closing mechanism, the arc extinguishing element, and the like, the maximum opening position of the movable contact is regulated when the movable contact is opened. A circuit breaker, wherein a stopper pin is held by a stopper pin holding hole formed in the arc-extinguishing side plate.
を設け、消弧側板のストッパーピン保持孔を上記半円柱
状の段部が嵌まる大きさのＤ字状にして、このストッパ
ーピン保持孔により上記ストッパーピンを保持したもの
であることを特徴とする請求項１記載の回路遮断器。2. A semi-cylindrical step is provided at both ends of a stopper pin, and a stopper pin holding hole of the arc-extinguishing side plate is formed in a D-shape having such a size as to fit said semi-cylindrical step. 2. The circuit breaker according to claim 1, wherein the stopper pin is held by a holding hole.
を設け、消弧側板のストッパーピン保持孔を上記小円柱
状の段部が嵌まる大きさの円形状にして、このストッパ
ーピン保持孔により上記ストッパーピンを保持したもの
であることを特徴とする請求項１記載の回路遮断器。3. A small cylindrical step portion is provided at both ends of the stopper pin, and the stopper pin holding hole of the arc extinguishing side plate is formed in a circular shape having a size enough to fit the small cylindrical step portion. 2. The circuit breaker according to claim 1, wherein the stopper pin is held by a hole.
にし、カバ−の内面にストッパーピン用のストッパー部
を形成し、可動接触子の開離時にストッパーピンが上記
カバ−の内面に形成したストッパー部によりストップさ
れるようにしたものであることを特徴とする請求項１な
いし２のいずれか一項に記載の回路遮断器。4. The stopper pin holding hole of the arc extinguishing side plate is elongated, a stopper portion for a stopper pin is formed on the inner surface of the cover, and the stopper pin is formed on the inner surface of the cover when the movable contact is separated. The circuit breaker according to claim 1, wherein the circuit breaker is stopped by a stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001004816A JP4540237B2 (en) | 2001-01-12 | 2001-01-12 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001004816A JP4540237B2 (en) | 2001-01-12 | 2001-01-12 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002208339A true JP2002208339A (en) | 2002-07-26 |
| JP4540237B2 JP4540237B2 (en) | 2010-09-08 |
Family
ID=18872954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001004816A Expired - Fee Related JP4540237B2 (en) | 2001-01-12 | 2001-01-12 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4540237B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007115540A (en) * | 2005-10-20 | 2007-05-10 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| JP2007200774A (en) * | 2006-01-27 | 2007-08-09 | Gs Yuasa Corporation:Kk | Active material for nonaqueous electrolyte electrochemical cell, manufacturing method, and nonaqueous electrolyte electrochemical cell provided therewith |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11176312A (en) * | 1997-12-08 | 1999-07-02 | Mitsubishi Electric Corp | Electromagnetic repulsion current limiting mechanism for circuit breaker |
-
2001
- 2001-01-12 JP JP2001004816A patent/JP4540237B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11176312A (en) * | 1997-12-08 | 1999-07-02 | Mitsubishi Electric Corp | Electromagnetic repulsion current limiting mechanism for circuit breaker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007115540A (en) * | 2005-10-20 | 2007-05-10 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| JP4696841B2 (en) * | 2005-10-20 | 2011-06-08 | 富士電機機器制御株式会社 | Circuit breaker |
| JP2007200774A (en) * | 2006-01-27 | 2007-08-09 | Gs Yuasa Corporation:Kk | Active material for nonaqueous electrolyte electrochemical cell, manufacturing method, and nonaqueous electrolyte electrochemical cell provided therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4540237B2 (en) | 2010-09-08 |
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