JP2000200535A - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JP2000200535A JP2000200535A JP10377695A JP37769598A JP2000200535A JP 2000200535 A JP2000200535 A JP 2000200535A JP 10377695 A JP10377695 A JP 10377695A JP 37769598 A JP37769598 A JP 37769598A JP 2000200535 A JP2000200535 A JP 2000200535A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic
- contact
- fixed contact
- trip device
- fixed
- 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
【産業上の利用分野】本件の発明は回路遮断器に係り、
性能を落とさず小型化、部品点数の削減、を図る技術に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit breaker,
The present invention relates to a technology for reducing the size and the number of parts without reducing performance.
【０００２】[0002]
【従来の技術】従来このタイプの回路遮断器は図１に示
す構成のものがあった。５０はケース５０ａとカバー５
０ｂとからなる合成樹脂の箱体、５１はケースに設置さ
れた可動接触子で可動接点５１ａを有する、５２はケー
スに固定された固定接触子で固定接点５２ａを有する。
またその接点部近傍には、開閉及び遮断時に接点間に発
生するアークを吸引冷却する消弧板５３と消弧壁５４で
周知のデアイオン消弧装置を構成する。2. Description of the Related Art Conventionally, this type of circuit breaker has the configuration shown in FIG. 50 is a case 50a and a cover 5
Ob, a synthetic resin box, 51 is a movable contact set in the case and has a movable contact 51a, and 52 is a fixed contact fixed to the case and has a fixed contact 52a.
In the vicinity of the contact portion, an arc extinguishing plate 53 and an arc extinguishing wall 54 for sucking and cooling an arc generated between the contacts at the time of opening / closing and interruption constitute a known deion arc extinguishing device.
【０００３】５５は電磁コイルで、電磁枠５６、可動鉄
片５７等により電磁引外し装置を構成している。５８は
ハンドルで、機構部（図示しない）に軸止される。５９
は引外し部材で機構部に軸止され、前記可動鉄片との当
接部５９ａと機構部と係合される係合部５９ｂを有す
る。ハンドルによるＯＮ、ＯＦＦの動作、回路に異常電
流が流れた時の電磁引外し装置によるトリップ動作につ
いての詳細は、すでに多くの特許及び実用新案の出願明
細書中で説明されているので、ここでは説明を省略す
る。上記構成の回路遮断器において従来、前記電磁引外
し装置と消弧装置は別々に設置され、別々の部品で構成
される構造であった。[0005] Reference numeral 55 denotes an electromagnetic coil, which forms an electromagnetic trip device by an electromagnetic frame 56, a movable iron piece 57 and the like. Reference numeral 58 denotes a handle, which is fixed to a mechanism (not shown). 59
Has a contact portion 59a with the movable iron piece and an engaging portion 59b engaged with the mechanism portion. The details of the ON / OFF operation by the handle and the trip operation by the electromagnetic trip device when an abnormal current flows in the circuit have already been described in many patents and utility model applications. Description is omitted. Conventionally, in the circuit breaker having the above-described configuration, the electromagnetic trip device and the arc extinguishing device are separately installed and have a structure including separate components.
【０００４】[0004]
【発明が解決しようとする課題】電磁引外し装置と消弧
装置を別々に構成する為、部品点数が多くまた、各々別
々の取り付けスペースを確保する必要があり、小型化が
困難となっている。そこで本件の発明は、電磁引外し装
置と消弧装置を一体化し、遮断性能を落とすことなく小
型化、部品点数の削減を図り、組立性を向上させた回路
遮断器を提供しようとするものである。Since the electromagnetic trip device and the arc extinguishing device are separately configured, the number of components is large, and it is necessary to secure separate mounting spaces for each device, making it difficult to reduce the size. . Therefore, the present invention aims to provide a circuit breaker that integrates an electromagnetic trip device and an arc extinguishing device, reduces the number of parts without reducing the breaking performance, reduces the number of parts, and improves the assemblability. is there.
【０００５】[0005]
【課題を解決しようとするための手段】上述の目的を達
成するため、第一に請求項１では、ケースと接点装置を
入切りする回動自在な操作ハンドルと、ケースに固定さ
れ固定接点を設けた固定接触子と、一端に固定接点と対
抗して配置される可動接点を設け、他端に回転軸支部を
有する可動接触子と、異常電流の大きさにより、前記可
動接点を固定接点から開極トリガーさせるバイメタル引
外し装置及び電磁引外し装置と、操作ハンドルで手動開
閉が可能であり、操作ハンドルにより、接点間が閉状態
でも前記バイメタル引外し装置及び、電磁引外し装置の
トリガーにより、強制的に可動接触子を開状態に動作さ
せる開閉機構部を備えた回路遮断器において、電源側の
接続端子と固定接触子の間に前記電磁引外し装置の電磁
コイルの両端を接続すると共に、可動接点と固定接点で
構成する接点装置とハンドル操作面の間の空間に電磁引
外し装置を配置し、該電磁引外し装置の電磁枠の一部を
消弧装置とした。In order to achieve the above object, first, in the first aspect, a rotatable operation handle for turning on and off a case and a contact device, and a fixed contact fixed to the case. The fixed contact provided, a movable contact disposed at one end opposed to the fixed contact, a movable contact having a rotating shaft support at the other end, and the movable contact is separated from the fixed contact by the magnitude of the abnormal current. Bimetal tripping device and electromagnetic tripping device that triggers opening can be manually opened and closed with an operation handle, and the operation handle allows the bimetal tripping device and the electromagnetic tripping device to trigger even when the contacts are closed. In a circuit breaker having an open / close mechanism for forcibly operating a movable contact in an open state, both ends of an electromagnetic coil of the electromagnetic trip device are connected between a connection terminal on a power supply side and a fixed contact. While, and electromagnetic tripping equipment placement in the space between the contact device and the steering surfaces constituting the fixed contact and the movable contact, a portion of the electromagnetic frame of the electric 磁引 release device was extinguishing device.
【０００６】第２に請求項２では、電磁枠を、固定接触
子と溶接あるいは鋲かしめにより接続し固定接触子をケ
ース１に固定することにより、電磁引外し装置を固定し
た。In the second aspect, the electromagnetic trip device is fixed by connecting the electromagnetic frame to the fixed contact by welding or riveting and fixing the fixed contact to the case 1.
【０００７】[0007]
【作用】請求項１記載の構成によれば、電磁引外し装置
を構成する電磁枠により、接点開極時に発生する接点間
のアークが電磁枠に吸引冷却される為、従来別個に構成
していた消弧装置に組み込む消弧板が不要となり、部品
点数の削減が図られる。また従来、消弧装置、電磁引外
し装置は別々の取付けスペースに設置していたが、電源
側の接続端子と固定接触子の間に電磁コイルを配置し、
接点装置とハンドル操作面との間に電磁引外し装置を配
置したので、大幅な小型化が図れる。According to the configuration of the first aspect, the arc between the contacts generated when the contacts are opened is attracted and cooled by the electromagnetic frame by the electromagnetic frame constituting the electromagnetic tripping device. In addition, an arc-extinguishing plate to be incorporated in the arc-extinguishing device becomes unnecessary, and the number of parts can be reduced. In the past, the arc extinguishing device and the electromagnetic trip device were installed in separate mounting spaces, but an electromagnetic coil was placed between the connection terminal on the power supply side and the fixed contact,
Since the electromagnetic trip device is arranged between the contact device and the handle operation surface, the size can be significantly reduced.
【０００８】請求項２記載の構成によれば、ケースに固
定する固定接触子と前記電磁引外し装置を溶接あるいは
鋲かしめにより接続する為、固定接触子をケースに固定
することにより電磁引外し装置の位置決め、及び固定が
可能となり、別々にケースに固定する場合と比べ、組立
作業性の向上による組立工数の削減が図られる。According to the second aspect of the present invention, since the fixed contact fixed to the case is connected to the electromagnetic trip device by welding or swaging, the fixed contact is fixed to the case and the electromagnetic trip device is fixed. Can be positioned and fixed, and the number of assembling steps can be reduced by improving the assembling workability as compared with the case of separately fixing to the case.
【０００９】[0009]
【実施例の説明】以下に本件発明を図２から図７にて詳
細に説明する。図２は、本件発明の請求項１の実施例の
構成を示す。この回路遮断器は、ケース、接点装置部、
開閉機構部、電磁引外し装置、バイメタル引外し装置、
消弧装置を主な構成部品としており、図２は回路遮断器
の断面図、図３は電磁引外し装置の正面図、側面図を示
す。ケース１は、ベース１ａとカバー１ｂからなり、例
えばフェノール樹脂のような絶縁材料にて略箱形状で形
成され、図２の一対の左右側壁１ｃ、１ｄの外側に電源
側の接続端子８を組込む端子装置の装着部１ｅと負荷側
の接続端子９を組込む端子装置の装着部１ｆを有する。
前記、電源側及び、負荷側の端子装置には箱体の端子金
具１０と端子金具に螺合する端子ねじ１１を有する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to FIGS. FIG. 2 shows the configuration of the first embodiment of the present invention. This circuit breaker includes a case, a contact device,
Opening / closing mechanism, electromagnetic trip device, bimetal trip device,
FIG. 2 is a cross-sectional view of a circuit breaker, and FIG. 3 is a front view and a side view of an electromagnetic trip device. The case 1 includes a base 1a and a cover 1b, and is formed in a substantially box shape with an insulating material such as a phenol resin, for example, and incorporates a power supply side connection terminal 8 outside a pair of left and right side walls 1c and 1d in FIG. It has a terminal device mounting portion 1f for incorporating the mounting portion 1e of the terminal device and the connection terminal 9 on the load side.
The terminal devices on the power supply side and the load side have a terminal fitting 10 of a box body and a terminal screw 11 screwed to the terminal fitting.
【００１０】接点装置は、電路の開閉を行うものであ
り、固定接触子３と可動接触子４にて構成される。固定
接触子３は、導電材料を折曲形成したものであり、固定
接点３ａの取り付け部、電磁引外し装置６の電磁コイル
６ａとの接続部３ｂ及び電磁引外し装置６を構成する電
磁枠６ｃとの接続部３ｃを有し、電源側のケース底面側
１ｈ近傍に配置される。また固定接点３は、接点面を回
路遮断器の底面からハンドル操作面側に向けて配置して
ある。The contact device opens and closes an electric circuit, and includes a fixed contact 3 and a movable contact 4. The fixed contact 3 is formed by bending a conductive material. The fixed contact 3 is attached to the fixed contact 3 a, the electromagnetic coil 6 a of the electromagnetic tripping device 6 is connected to the electromagnetic coil 6 a, and the electromagnetic frame 6 c constituting the electromagnetic tripping device 6. And a connection portion 3c for the power supply, and is disposed in the vicinity of the bottom surface side 1h on the power supply side. The fixed contact 3 is arranged such that the contact surface faces from the bottom surface of the circuit breaker to the handle operation surface side.
【００１１】可動接触子４は、一端に可動接点４ａを有
し、他端に回転軸支部４ｂを有する。略中央部には、操
作ハンドル２と連動する開閉機構部により、ハンドル操
作面とケース底面の間を復動する押し圧部材１２との当
接部４ｃを有する。また回転軸支部４ｂは、軸１４にて
ケースに位置固定され固定接点３ａから可動接点４ａを
開極する方向へ回転力を付勢する接点ばね１３が取り付
けられている。The movable contact 4 has a movable contact 4a at one end and a rotating shaft support 4b at the other end. At a substantially central portion, a contact portion 4c with a pressing member 12 that moves back and forth between the handle operation surface and the case bottom surface by an opening / closing mechanism that interlocks with the operation handle 2 is provided. The rotary shaft support 4b is provided with a contact spring 13 which is fixed to the case by a shaft 14 and applies a rotational force in a direction to open the movable contact 4a from the fixed contact 3a.
【００１２】開閉機構部は、操作ハンドル２により、前
記固定接点３ａ、可動接点４ａの開極及び閉極を行うと
共に、異常電流が流れた時に強制的に開極する機構を有
する。The opening / closing mechanism has a mechanism for opening and closing the fixed contact 3a and the movable contact 4a by the operating handle 2, and forcibly opening the contact when an abnormal current flows.
【００１３】電磁引外し装置６は、短絡電流を検知した
ときに、開閉機構を動作させ、固定接点３ａから可動接
点４ａを開極させるもので、電磁コイル６ａ、電磁枠６
ｂ、６ｃ、吸引部材６ｂ、及び引外し部材１５を動作さ
せる連動部材１６により構成され、電磁コイル６ａの一
端は、電源側の接続端子８と接続され、他端は固定接触
子３ｂと接続されている。The electromagnetic trip device 6 operates an opening / closing mechanism when a short-circuit current is detected to open the movable contact 4a from the fixed contact 3a. The electromagnetic coil 6a, the electromagnetic frame 6
b, 6c, a suction member 6b, and an interlocking member 16 for operating the tripping member 15. One end of the electromagnetic coil 6a is connected to the connection terminal 8 on the power supply side, and the other end is connected to the fixed contact 3b. ing.
【００１４】より詳しく説明すると電磁枠６ｂは逆Ｕ字
形状で構成され、吸引部材６ｄ、電磁コイル６ａを収納
し、別の電磁枠６ｃと溶接あるいは、カシメにより接続
される。前記電磁枠６ｂ、６ｃを含む電磁引外し装置
は、可動接点４ａと固定接点３ａで構成する接点装置と
ハンドル操作面１ｂとの間の空間に配置される。More specifically, the electromagnetic frame 6b is formed in an inverted U-shape, houses the suction member 6d and the electromagnetic coil 6a, and is connected to another electromagnetic frame 6c by welding or caulking. The electromagnetic trip device including the electromagnetic frames 6b and 6c is disposed in a space between the contact device including the movable contact 4a and the fixed contact 3a and the handle operation surface 1b.
【００１５】電磁枠６ｃは、電磁引外し装置６から固定
接触子３ｃ側へ大きく延出されており固定接点３ａ近傍
で固定接触子３ｃと溶接あるいは、鋲カシメにて接続さ
れる。従って、第一に電磁引外し装置６は、固定接触子
３をケースへ固定することにより、ケースへ位置決め固
定することができる。The electromagnetic frame 6c greatly extends from the electromagnetic trip device 6 to the fixed contact 3c side, and is connected to the fixed contact 3c near the fixed contact 3a by welding or swaging. Therefore, first, the electromagnetic trip device 6 can be positioned and fixed to the case by fixing the fixed contact 3 to the case.
【００１６】また第二に、電磁枠６ｃは短絡電流遮断時
に接点間に発生するアークを電磁枠６ｃの磁性により、
図４から図５に示すが如く固定接点３ａから引き離し、
電磁枠６Ｃに移行させ、アークを冷却し、消弧する。す
なわち電磁枠６ｃの一部を消弧装置として利用すること
ができる。Second, the electromagnetic frame 6c generates an arc generated between the contacts when the short-circuit current is interrupted by the magnetism of the electromagnetic frame 6c.
As shown in FIG. 4 and FIG.
The process is shifted to the electromagnetic frame 6C to cool and extinguish the arc. That is, a part of the electromagnetic frame 6c can be used as an arc extinguishing device.
【００１７】連動部材１６は、一端に吸引部材６ｄと係
合する係合部１６ａを有し、他端には開閉機構を引外
す、引外し部材１５ａに当接する当接部１６ｂを有す
る。また、略中央部には回転の支点となる回転軸支部１
６ｃを設ける。The interlocking member 16 has, at one end, an engaging portion 16a which engages with the suction member 6d, and at the other end, a contact portion 16b which trips the opening / closing mechanism and contacts the tripping member 15a. A rotation shaft support 1 serving as a fulcrum of rotation is provided substantially in the center.
6c is provided.
【００１８】引外し部材１５は、主に過電流で動作する
バイメタル引外し素子５と当接する当接部１５ｂ、短絡
電流で動作する電磁引外し装置６に取付けられた連動部
材１６ｂとの当接部１５ａ、及び略中央部に開閉機構と
係合する係合部（図示しない）を有し、ケース１の底面
側に、回転軸支部を有し、開閉機構を構成する軸受け部
（図示しない）に軸止めされる。前記バイメタルとの当
接部１５ｂには、バイメタルとの距離を調整する調節部
材１７が螺合される。The tripping member 15 mainly comes into contact with a contact portion 15b which comes into contact with the bimetal tripping element 5 operated by overcurrent, and a contact with an interlocking member 16b attached to the electromagnetic tripping device 6 operated by short-circuit current. A portion (not shown) having a portion 15a and an engaging portion (not shown) that engages with the opening and closing mechanism at a substantially central portion, and a rotating shaft support portion on the bottom side of the case 1 to constitute the opening and closing mechanism. It is fixed to the shaft. An adjusting member 17 for adjusting the distance from the bimetal is screwed into the contact portion 15b with the bimetal.
【００１９】次に、回路遮断器の開極時の動作について
以下に述べる。可動接点４ａと固定接点３ａが閉極した
状態である図２の回路遮断器に短絡電流が流れた場合、
電磁コイル部６ａに電流が流れ、強い磁束が発生し、吸
引部材６ｄを吸引動作する。また同時に吸引部材６ｄと
係合する連動部材１６ａは、回転軸支部１６ｃを支点と
して反時計周りに回動し、開閉機構と係合している引外
し部材１５を負荷側であるケース１ｄ方向へ動作させ、
操作ハンドル２は開極方向へ回転すると同時に、可動接
触子４は回転軸支部４ｂを支点とし、接点ばね１３の付
勢力により、時計周りに回転し、可動接点４ａと固定接
点３ａは開極される。Next, the operation when the circuit breaker is opened will be described below. When a short-circuit current flows through the circuit breaker of FIG. 2 in which the movable contact 4a and the fixed contact 3a are closed,
An electric current flows through the electromagnetic coil section 6a, and a strong magnetic flux is generated, and the suction member 6d performs a suction operation. At the same time, the interlocking member 16a engaged with the suction member 6d rotates counterclockwise around the rotation shaft support 16c as a fulcrum, and moves the tripping member 15 engaged with the opening / closing mechanism toward the case 1d on the load side. Let it work,
At the same time as the operation handle 2 rotates in the opening direction, the movable contact 4 rotates clockwise by the urging force of the contact spring 13 with the movable contact 4 being the fulcrum, and the movable contact 4 a and the fixed contact 3 a are opened. You.
【００２０】可動接点４ａと固定接点３ａの開極時のア
ークの発生について、さらに詳しく図４及び図５にて説
明する。図４では、可動接点４ａと固定接点３ａの開極
し始めの状態図を示す。この状態では、可動接点４ａと
固定接点３ａの距離Ｌ２は、電磁引外し装置を構成する
電磁枠６ｃと可動接触子４の距離Ｌ１より小さく、アー
ク抵抗も小さい、従って可動接点４ａと固定接点３ａ間
でアークが発生する。The occurrence of an arc when the movable contact 4a and the fixed contact 3a are opened will be described in more detail with reference to FIGS. FIG. 4 shows a state diagram when the movable contact 4a and the fixed contact 3a start opening. In this state, the distance L2 between the movable contact 4a and the fixed contact 3a is smaller than the distance L1 between the electromagnetic frame 6c constituting the electromagnetic trip device and the movable contact 4, and the arc resistance is also small. Therefore, the movable contact 4a and the fixed contact 3a are small. An arc occurs between them.
【００２１】図５は、可動接点４ａと固定接点３ａが完
全に開極した状態図を示す。この状態では、可動接点４
ａと固定接点３ａの距離Ｌ２は、電磁引外し装置６を構
成する電磁枠６ｃと可動接触子４の距離Ｌ１より大き
く、アーク抵抗が大きい、従って図４において可動接点
４ａと固定接点３ａ間で発生したアークは、可動接触子
４と電磁枠６ｃへ移行し、冷却され消弧される。従って
可動接点４ａと固定接点３ａ間でのアーク発生時間は短
く、接点消耗が少なくなるといった効果が得られる。電
磁枠６ｃは電磁引外し装置６の磁気回路を構成する機能
と有すると共に、接点開極時に発生するアークを消弧す
る消弧装置の機能を有する。FIG. 5 shows a state in which the movable contact 4a and the fixed contact 3a are completely opened. In this state, the movable contact 4
The distance L2 between the fixed contact 3a and the fixed contact 3a is larger than the distance L1 between the electromagnetic frame 6c and the movable contact 4 constituting the electromagnetic trip device 6, and the arc resistance is large. Therefore, in FIG. 4, the distance between the movable contact 4a and the fixed contact 3a is large. The generated arc moves to the movable contact 4 and the electromagnetic frame 6c, and is cooled and extinguished. Therefore, the arc generation time between the movable contact 4a and the fixed contact 3a is short, and the effect of reducing contact wear is obtained. The electromagnetic frame 6c has a function of configuring a magnetic circuit of the electromagnetic trip device 6, and also has a function of an arc extinguishing device that extinguishes an arc generated when a contact is opened.
【００２２】図６は、前記消弧装置７に消弧壁１８を組
み込んだ状態を示す。消弧壁１８により、接点開閉時に
発生するアークによってケースが焼け導電性の分解物
（例えば炭化物）発生による絶縁性能の劣化を防いでい
る。図７は他の実施例であり、電磁枠６ｂ、６ｃを一体
化した電磁引外し装置を示す。FIG. 6 shows a state where the arc extinguishing wall 18 is incorporated in the arc extinguishing device 7. The arc-extinguishing wall 18 prevents the case from burning due to the arc generated when the contacts are opened and closed, and prevents the insulation performance from deteriorating due to the generation of conductive decomposed substances (eg, carbides). FIG. 7 shows another embodiment, which shows an electromagnetic trip device in which the electromagnetic frames 6b and 6c are integrated.
【００２３】[0023]
【発明の効果】請求項１の発明によれば、従来別々に構
成されていた、電磁引外し装置の電磁枠と消弧装置を構
成する磁性体部材が一体化されると共に、接点装置とハ
ンドル操作面との空間に集約されて構成される為、部品
点数の削減および外形の大幅な小型化が図られる。According to the first aspect of the present invention, the electromagnetic frame of the electromagnetic tripping device and the magnetic member constituting the arc extinguishing device, which have been conventionally separately constructed, are integrated, and the contact device and the handle are provided. Since the components are integrated in a space with the operation surface, the number of parts can be reduced and the outer shape can be significantly reduced.
【００２４】請求項２の発明によれば、ケースに固定さ
れる固定接触子に電磁引外し装置を接続する為、従来別
々にケースに取り付ける必要があった固定接触子と電磁
引外し装置が一度に組み立てられ、組み立て工数の削減
が図られる。According to the second aspect of the present invention, since the electromagnetic trip device is connected to the fixed contact fixed to the case, the fixed contact and the electromagnetic trip device which had to be separately attached to the case in the past can be used once. And the number of assembling steps can be reduced.
【００２５】[0025]
【図１】 従来の回路遮断器の実施例FIG. 1 shows an embodiment of a conventional circuit breaker.
【図２】 本発明の第１実施例を示す回路遮断器断面図FIG. 2 is a sectional view of a circuit breaker showing a first embodiment of the present invention.
【図３】 電磁引外し装置の正面図及び側面図FIG. 3 is a front view and a side view of an electromagnetic trip device.
【図４】 接点の開き始めの状態図FIG. 4 is a state diagram of a contact opening start
【図５】 接点が開いた時の状態図FIG. 5 is a state diagram when a contact is opened.
【図６】 消弧壁を組み込んだ状態図FIG. 6 is a state diagram in which an arc-extinguishing wall is incorporated.
【図７】 本発明の他実施例の正面図及び側面図FIG. 7 is a front view and a side view of another embodiment of the present invention.
１ ケース ２ ハンドル ３ 固定接触子 ４ 可動接触子 ５ バイメタル ６ 電磁引外し装置 ７ 消弧装置 ８ 電源側接続端子 ９ 負荷側接続端子 １０ 端子金具 １１ 端子ねじ １２ 押し圧部材 １３ 接点ばね １４ 回転軸 １５ 引外し部材 １６ 連動部材 １７ 調整部材 １８ 消弧壁 DESCRIPTION OF SYMBOLS 1 Case 2 Handle 3 Fixed contact 4 Movable contact 5 Bimetal 6 Electromagnetic tripping device 7 Arc extinguishing device 8 Power supply side connection terminal 9 Load side connection terminal 10 Terminal fitting 11 Terminal screw 12 Pressing member 13 Contact spring 14 Rotating shaft 15 Tripping member 16 Interlocking member 17 Adjusting member 18 Arc extinguishing wall
Claims (2)
操作ハンドルと、ケースに固定され固定接点を設けた固
定接触子と、一端に固定接点と対抗して配置される可動
接点を設け、他端に回転軸支部を有する可動接触子と、
異常電流の大きさにより、前記可動接点を固定接点から
開極トリガーさせるバイメタル引外し装置及び電磁引外
し装置と、操作ハンドルで手動開閉が可能であり、操作
ハンドルにより、接点間が閉状態でも前記バイメタル引
外し装置及び、電磁引外し装置のトリガーにより、強制
的に可動接触子を開状態に動作させる開閉機構部を備え
た回路遮断器において、電源側の接続端子と固定接触子
の間に前記電磁引外し装置の電磁コイルの両端を接続す
ると共に、可動接点と固定接点で構成する接点装置とハ
ンドル操作面の間の空間に電磁引外し装置を配置し、該
電磁引外し装置の電磁枠の一部を消弧装置としたことを
特徴とする回路遮断器。A rotatable operation handle for turning on and off the case and the contact device; a fixed contact fixed to the case and provided with a fixed contact; and a movable contact disposed at one end against the fixed contact. A movable contact having a rotating shaft support at the other end,
Depending on the magnitude of the abnormal current, a bimetal trip device and an electromagnetic trip device that trigger the opening of the movable contact from the fixed contact can be manually opened and closed with an operation handle. In a circuit breaker having an opening / closing mechanism for forcibly operating a movable contact in an open state by a trigger of a bimetal trip device and an electromagnetic trip device, the circuit breaker is provided between a connection terminal on a power supply side and a fixed contact. While connecting both ends of the electromagnetic coil of the electromagnetic trip device, an electromagnetic trip device is disposed in a space between the contact device constituted by the movable contact and the fixed contact and the handle operation surface, and the electromagnetic frame of the electromagnetic trip device is A circuit breaker characterized in that a part thereof is an arc extinguishing device.
鋲かしめにより接続し固定接触子をケースに固定するこ
とにより、電磁引外し装置を固定したことを特徴とする
請求項１記載の回路遮断器。 【０００１】2. The circuit according to claim 1, wherein said electromagnetic frame is connected to a fixed contact by welding or swaging, and said fixed contact is fixed to a case, thereby fixing an electromagnetic trip device. Circuit breaker. [0001]
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37769598A JP4230037B2 (en) | 1998-12-31 | 1998-12-31 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37769598A JP4230037B2 (en) | 1998-12-31 | 1998-12-31 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000200535A true JP2000200535A (en) | 2000-07-18 |
| JP4230037B2 JP4230037B2 (en) | 2009-02-25 |
Family
ID=18509087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37769598A Expired - Fee Related JP4230037B2 (en) | 1998-12-31 | 1998-12-31 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4230037B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054066A (en) * | 2017-12-15 | 2018-05-18 | 浙江正泰电器股份有限公司 | The clod wash pivot structure of circuit breaker electric magnetic release |
-
1998
- 1998-12-31 JP JP37769598A patent/JP4230037B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054066A (en) * | 2017-12-15 | 2018-05-18 | 浙江正泰电器股份有限公司 | The clod wash pivot structure of circuit breaker electric magnetic release |
| CN108054066B (en) * | 2017-12-15 | 2023-09-12 | 浙江正泰电器股份有限公司 | Cold bending rotating shaft structure of electromagnetic release of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4230037B2 (en) | 2009-02-25 |
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