JPS59103229A - Switch - Google Patents

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Publication number
JPS59103229A
JPS59103229A JP21228282A JP21228282A JPS59103229A JP S59103229 A JPS59103229 A JP S59103229A JP 21228282 A JP21228282 A JP 21228282A JP 21228282 A JP21228282 A JP 21228282A JP S59103229 A JPS59103229 A JP S59103229A
Authority
JP
Japan
Prior art keywords
arc
fixed contact
extinguishing plate
contact
extinguishing
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
Application number
JP21228282A
Other languages
Japanese (ja)
Other versions
JPH0586008B2 (en
Inventor
岡戸 弘行
佐古 祐嗣
田沢 宏明
和田 勇一
貞次郎 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP21228282A priority Critical patent/JPS59103229A/en
Priority to US06/629,833 priority patent/US4642429A/en
Priority to DE8383903418T priority patent/DE3382440D1/en
Priority to EP83903418A priority patent/EP0124621B1/en
Priority to PCT/JP1983/000397 priority patent/WO1984002033A1/en
Priority to KR2019830009413U priority patent/KR880001536Y1/en
Publication of JPS59103229A publication Critical patent/JPS59103229A/en
Publication of JPH0586008B2 publication Critical patent/JPH0586008B2/ja
Granted legal-status Critical Current

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  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は電流の開閉を行なう開閉器、特にその消弧機構
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch that switches on and off current, and particularly to an arc extinguishing mechanism thereof.

本発明の主たる適用開閉器として電磁接触器や配線用し
ゃ断器を挙げることができる。
The main applicable switches of the present invention include electromagnetic contactors and circuit breakers.

まず、第1図に従って従来の電磁接触器の1例について
説明する。第1図において(1)はプラスチックで成形
された取付台、(2)はこの取付台上にケイ素鋼板で積
層された固定鉄心、(3)は固定鉄心(2)に対向設置
されこれと同じくケイ素鋼板で積層された可動鉄心、(
4)は可動鉄心(3)と固定鉄心(2)とを引外しはね
(図示せず)に抗して吸着させる駆動力を付与する操作
コイル、(5)はプラスチックで形成され、角窓を有す
るクロスバ−で、その下端では可動鉄心(3)を保持し
ている。(6)は上記クロスバ−(5)の角窓に挿入さ
れて押しはね(7)によシ保持されている可動接触子、
(6A)は可動接触子(6)に設けられた可動接点、(
8)は上記可動接触子(6)と対向して設けられ、電流
を導通させる固定接触子、(81)はこの固定接触子(
8)に設けられた固定接点、(8G)は同じくこの固定
接触子(8)の端子部を示す。
First, an example of a conventional electromagnetic contactor will be described with reference to FIG. In Figure 1, (1) is a mounting base made of plastic, (2) is a fixed core laminated with silicon steel plates on this mounting base, and (3) is installed opposite to fixed core (2) and is similar to this. Movable iron core laminated with silicon steel plates (
4) is an operating coil that provides a driving force to attract the movable core (3) and fixed core (2) against a tripping spring (not shown); (5) is made of plastic and has a square window. The crossbar has a movable iron core (3) at its lower end. (6) is a movable contact inserted into the corner window of the crossbar (5) and held by the pusher (7);
(6A) is a movable contact provided in the movable contactor (6), (
8) is a fixed contact that is provided opposite to the movable contact (6) and conducts current, and (81) is this fixed contact (
The fixed contact (8G) provided in 8) also indicates the terminal portion of this fixed contact (8).

然して、(9)は電磁接触器本体を外部回路と接続する
ための端子ねじ、(10)は固定接触子(8)を取シ付
けるベース、aυは電磁接触子上面をおおうカバーで、
その内部には固定接点(8A)と可動接点(6A)との
間に生じるアークα2を消弧するための磁性体よりなる
第1の金嶋消張板住9と第2の金4消弧板04)とが設
けられている。第2図にはこれら金属消弧板は淘、圓と
固定接触子(8)および固定接点(8A)の取付態様を
示している。この第1の金属消弧板Uは固定接点(8A
)を覆って固定接触子(8)上に跨架立設されたコ字状
枠として構成され、また第2の金属消弧板(141はそ
の外側に単一板として同様跨架されている。
Therefore, (9) is a terminal screw for connecting the electromagnetic contactor main body with an external circuit, (10) is a base for mounting the fixed contact (8), and aυ is a cover that covers the top surface of the electromagnetic contactor.
Inside it, there is a first gold 4 arc extinguishing plate made of a magnetic material and a second gold 4 arc extinguishing plate for extinguishing the arc α2 generated between the fixed contact (8A) and the movable contact (6A). 04) is provided. FIG. 2 shows how these metal arc-extinguishing plates are attached, as well as the fixed contacts (8) and fixed contacts (8A). This first metal arc-extinguishing plate U has a fixed contact (8A
), and a second metal arc-extinguishing plate (141 is similarly straddled as a single plate on the outside thereof). .

上記構成を有するため、この従来の尼磁接欽器において
、操作コイル(4)を消磁すると、図示されていない引
外しばねにより可動鉄心(3)が固定鉄心(2)より開
離し、クロスバ−(5)も、第1図に示す状態を占め、
固定接点(8A)と可姑接点(6A)とが開離してこれ
ら固定接点(8A)と可動接点(6A)との間にアーク
i14が生じるが、このアーク02は金m消弧板a3.
0養によシ1旺流零点において消弧され、電流がしゃ断
されることになる。
Because of the above configuration, in this conventional magnetic ground contactor, when the operation coil (4) is demagnetized, the movable core (3) is separated from the fixed core (2) by a tripping spring (not shown), and the crossbar is separated from the fixed core (2). (5) also occupies the state shown in Figure 1,
The fixed contact (8A) and the movable contact (6A) are opened and an arc i14 is generated between the fixed contact (8A) and the movable contact (6A), but this arc 02 is caused by the metal arc extinguishing plate a3.
The arc is extinguished at the zero point when the current is zero, and the current is cut off.

この従来の面磁接@器におけるアーク(I々の消弧プロ
セスを、消弧室断面を示す第3図より更に詳述すると、
可動接点(6A)と固定接点(8A)との間に生じたア
ーク0りは磁性体の第1の金属消弧板03に吸引されて
アーク(12A)のように引き伸ばされる。このとき、
固定接触子(8)は第3図のように断面コの字状の形態
を備えておシ、この固定接触子(8)を流れる電流が作
る磁場によってアーク圓は駆動され、このアーク0りが
一層引き伸ばされる。このようにアーク(12+が引き
伸ばされるとアーク電圧が高くなるので、固定接触子(
8)と第1の金属消弧板α〜との間、第1の金閤消張板
住〜と可動接点(6A)との間でそれぞれ絶縁破壊が起
こシ、アーク(12A)は二つのアーク(12B)、(
120)に分断される。分断された一方のアーク(12
0)は第2の金属消弧板041に吸引され、かつ固定接
触子(8)を流れる電流が作る磁場によって駆動されて
アーク(12D)のように引き伸ばされる。このアーク
(12D)の伸延によシアーク電圧が高くなると、アー
ク(12D)は二つのアーク(12E)、(12F)に
更に分断され、アークaっけ最終的に三つのアーク(1
2B)、(12E)、(12F)に分断されて電流零点
で消弧され、電流がしゃ断されるに至る。
The arc extinguishing process in this conventional surface magnetic contactor will be explained in more detail with reference to FIG. 3, which shows a cross section of the arc extinguishing chamber.
The arc generated between the movable contact (6A) and the fixed contact (8A) is attracted to the first metal arc-extinguishing plate 03 made of a magnetic material and is elongated like an arc (12A). At this time,
The fixed contact (8) has a U-shaped cross section as shown in Fig. 3, and the arc circle is driven by the magnetic field created by the current flowing through the fixed contact (8). is further stretched. As the arc (12+) is stretched in this way, the arc voltage increases, so the fixed contact (
8) and the first metal arc extinguishing plate α~, and between the first metal arc extinguishing plate α~ and the movable contact (6A), and the arc (12A) Arc (12B), (
120). One of the divided arcs (12
0) is attracted to the second metal arc-extinguishing plate 041, and is driven by the magnetic field created by the current flowing through the fixed contact (8) and stretched like an arc (12D). When the shear voltage increases due to the extension of this arc (12D), the arc (12D) is further divided into two arcs (12E) and (12F), and the arc a finally becomes three arcs (12F).
2B), (12E), and (12F), the arc is extinguished at the current zero point, and the current is cut off.

従来の開閉器においては上記のように消弧が行われるが
、アーク(12F)の一端が生じる第2の金属消弧板a
41rtcrt界集中が起こり、かつ熱伝導性が劣る先
端部(14A)にこのアーク(12F)が生じるので、
十分なしゃ断性能が望み得す、また消弧機構の劣化も著
し〜・欠点があった。
In the conventional switch, arc extinguishing is performed as described above, but the second metal arc extinguishing plate a where one end of the arc (12F) occurs
41rtcrt field concentration occurs and this arc (12F) is generated at the tip (14A) which has poor thermal conductivity, so
Sufficient breaking performance could be expected, but the arc-extinguishing mechanism was also severely degraded.

本発明は成上の欠点を解消すべく、開閉器のしゃ断性能
を高めることを目的としてなされたもので、その特徴と
するところは、固定接触子に接合された固定接点、この
固定接点に対向し可動接触子に接合された可動接点、こ
れら接点を遮蔽すべく接点開離方向に並立して上記固定
接触子先端近傍に跨架配設された第1の金属消弧板、お
よびこの第1の金属消弧板の上記各接点よシ遠い側にお
いてこれに並設された第2の金属消弧板を備え、この第
2の全日消弧板には、上記固定接触子との近接部位に該
固定接触子に対向してその延在方向へU字状に屈曲形成
されたアークリード部を設けるようにしたことに存する
The present invention was made for the purpose of improving the breaking performance of a switch in order to eliminate the above drawbacks.The present invention is characterized by a fixed contact joined to a fixed contact, a a movable contact joined to the movable contact, a first metal arc-extinguishing plate disposed straddling near the tip of the fixed contact in parallel in the contact opening direction to shield these contacts; A second metal arc-extinguishing plate is provided in parallel with the metal arc-extinguishing plate on the far side from each of the contacts, and this second all-day arc-extinguishing plate has a metal arc-extinguishing plate located in the vicinity of the fixed contact. The present invention is characterized in that an arc lead portion is provided opposite to the fixed contact and bent in a U-shape in the direction in which the fixed contact extends.

以下、第4.5図に示す実施例について本発明を説明す
ると、実施例の開閉器は第2の金属消弧板を除けば上記
従来例のものと同様であるので、第4図には第2の金属
消弧板Iのみの斜視図を示して(・る。この第・4図に
示すように、この第20金閤消弧板α荀にはその固定接
触子跨架部分の下部に該固定接触子と対向してその延在
方向にU字状に屈曲形成されたアークリード部(14B
)が設けられている点が従来のものと異なっている。こ
の第2の全日消弧板a4を適用した消弧室の断面が第5
図に示されており、同図に基き、アーク(121が固定
接点(8A)と可動接点(6A)との間に生じてから消
弧されるまでのプロセスを説明すると、アーク圓がアー
ク(12A)のように引き延ばされ、このアーク(12
A)が二つノア −り(12B)、C120)に分断さ
れて更にこのアーク(120)がアーク(12D)のよ
うに吸引伸張されることは第3図のものと同様である。
The present invention will be explained below with reference to the embodiment shown in Fig. 4.5.The switch of the embodiment is the same as that of the conventional example above except for the second metal arc-extinguishing plate. A perspective view of only the second metal arc-extinguishing plate I is shown.As shown in Figure 4, this 20th metal arc-extinguishing plate An arc lead portion (14B) is bent into a U-shape in the extending direction of the fixed contact.
) is different from the conventional one. The cross section of the arc extinguishing chamber to which this second all-day arc extinguishing board a4 is applied is the fifth one.
Based on the figure, the process from when an arc (121 is generated between the fixed contact (8A) and the movable contact (6A) until it is extinguished) is explained. 12A), and this arc (12
Similar to the one in FIG. 3, A) is divided into two arcs (12B) and C120), and this arc (120) is further drawn and expanded like an arc (12D).

しかし、本実施例のものにお〜・では、上記アーク(1
2D)が再度アークCl2E)、(12F)に分断され
るとき、U字状に形成されたアークリード部(14E)
の存在により第2の金弓消張板α優に11界集中を生じ
させることがなく、該アークリード部(14B)のU字
状の底部平面部にお〜・て迅速に消弧されることとなる
However, in this example, the arc (1
When 2D) is again divided into arcs Cl2E) and (12F), the arc lead part (14E) formed in a U-shape
Due to the presence of the second gold bow extinguishing plate α, the arc is quickly extinguished at the U-shaped bottom flat part of the arc lead part (14B) without causing 11 field concentration. It happens.

このように本開閉器においては、効果的な消弧が行われ
るため、アーク(12F)の一端がもたらす第2の金■
消弧板α句の電界集中を起こさせることが全くなく、か
つアークリード部(14B)の熱伝導性の良好なU字状
の底部平面部で消弧が行われ、しかも上記底部平面部は
これから反転上界するU字状側片部分で効果的な熱放散
がなされる結果、焼損を生ずる惧れのない優れtこしゃ
断性能が優られる。
In this way, in this switch, effective arc extinguishing is performed, so the second gold
There is no electric field concentration on the arc extinguishing plate α, and the arc is extinguished at the U-shaped bottom flat part of the arc lead part (14B) which has good thermal conductivity. As a result of effective heat dissipation in the U-shaped side piece portion which is about to invert and upper bound, excellent cutting performance is achieved without the risk of burnout.

なお、上記実施例のものは、固定接触子(8)の形状が
コの字状に形成されているが、コの字状でなく直線状の
ものでも同様な効果が優られるのけ言うまでもない。
In the above embodiment, the fixed contact (8) is formed in a U-shape, but it goes without saying that the same effect can be obtained even if the fixed contact is not in a U-shape but in a straight line. .

また、以上の説明においては、接点をマグネットにより
開閉する開閉器、すなわち電磁接触器に本発明を適用し
た場合の例についてのみ述べているが、例えば配線用し
ゃ断器のような他の開閉器にも適用できるのは明白であ
る。
In addition, in the above explanation, only an example is described in which the present invention is applied to a switch whose contacts are opened and closed by magnets, that is, an electromagnetic contactor, but it can also be applied to other switches such as circuit breakers. It is obvious that this can also be applied.

以上述べたように本発明においては、第2の金属消弧板
に固定接触子に対向してその延在方向にU字状に屈曲形
成されたアークリード部を設けることにより、しゃ断性
能を著しく向上させることのできる効果がある。
As described above, in the present invention, by providing the second metal arc-extinguishing plate with an arc lead portion bent in a U-shape in the extending direction of the fixed contact, the breaking performance is significantly improved. There are effects that can be improved.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来の開閉器の部分断面図、第2図は第1図の
ものの消弧室を示す要部拡大図、第3図は第1図のもの
の消弧動作説明図、第4図は本発明の一実施例に係る第
2の金m消弧板を示す斜視図、第5図は本発明実施例の
ものの消弧動作を示す説明図である。 (6)・・・・・・可動接触子  (6A)・・・・・
・可動接点(8)・・・・・・固定接触子  (8A)
・・・・・・固定接点・121イ1 第 3 1;gi 第 4 図 I・ 5 図 A 手続補正書(自発) 特許庁長官殿 1゜事件の表示    特願昭57−212282号2
、発明の名称 開閉器 3、補正をする者 事件との関係   特許出願人 住 所     東京都千代田区丸の内二丁目2番3号
名 称(601)   三菱電機株式会社代表者片山仁
八部 4、代理人 住 所     東京都千代田区丸の内二丁目2番3号
5、補正の対象 明細書の発明の詳細な説明の欄。 6、補正の内容 明細書第2頁第20行のr(11)は電磁接触子上面」
という記載をr(II)は電磁接触器上面」と補正する
。 以  上
Figure 1 is a partial sectional view of a conventional switch, Figure 2 is an enlarged view of the main part showing the arc extinguishing chamber of the switch in Figure 1, Figure 3 is an explanatory diagram of the arc extinguishing operation of the switch in Figure 1, and Figure 4. 5 is a perspective view showing a second metal m arc extinguishing plate according to an embodiment of the present invention, and FIG. 5 is an explanatory diagram showing the arc extinguishing operation of the embodiment of the present invention. (6)...Movable contact (6A)...
・Movable contact (8)...Fixed contact (8A)
...Fixed contact/121-1 No. 3 1; gi No. 4 Figures I and 5 Figure A Procedural amendment (spontaneous) Commissioner of the Patent Office 1゜Indication of case Patent application No. 1982-212282 2
, Name of the invention Switch 3, Relationship with the case of the person making the amendment Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative Hitachi Katayama 4, Agent Address 2-2-3-5 Marunouchi, Chiyoda-ku, Tokyo, Detailed description of the invention in the specification to be amended. 6. r(11) on page 2, line 20 of the specification of amendment is the top surface of the electromagnetic contactor.
The statement "r(II) is the top surface of the electromagnetic contactor" is corrected. that's all

Claims (1)

【特許請求の範囲】[Claims] 固定接触子に接合された固定接点、この固定接点に対向
し可動接触子に接合して設けられた可動接点、これら接
点を遮蔽すべく接点開離方向に並立して上記固定接触子
先端近傍に跨架配設された第1の金属消弧板、およびこ
の第1の金属消弧板の上記各接点よシ遠い側においてこ
れに並設された第2の金属消弧板を備え、この第2の金
属消弧板には、上記固定接触子との近接部位に該固定接
触子に対向してその延在方向へU字状に屈曲形成された
アークリード部を設けたことを特徴とする開閉器。
A fixed contact joined to the fixed contact, a movable contact opposite the fixed contact and joined to the movable contact, and a movable contact arranged in parallel in the contact opening direction and near the tip of the fixed contact in order to shield these contacts. A first metal arc-extinguishing plate arranged astride, and a second metal arc-extinguishing plate arranged in parallel with the first metal arc-extinguishing plate on a side far from each of the contacts of the first metal arc-extinguishing plate. The metal arc-extinguishing plate of No. 2 is characterized in that an arc lead portion is provided in a portion close to the fixed contact and bent in a U-shape in the direction of extension of the fixed contact, facing the fixed contact. switch.
JP21228282A 1982-11-10 1982-12-03 Switch Granted JPS59103229A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP21228282A JPS59103229A (en) 1982-12-03 1982-12-03 Switch
US06/629,833 US4642429A (en) 1982-11-10 1983-11-04 Switch
DE8383903418T DE3382440D1 (en) 1982-11-10 1983-11-04 COUNTER.
EP83903418A EP0124621B1 (en) 1982-11-10 1983-11-04 Switch
PCT/JP1983/000397 WO1984002033A1 (en) 1982-11-10 1983-11-04 Switch
KR2019830009413U KR880001536Y1 (en) 1982-11-10 1983-11-05 A switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21228282A JPS59103229A (en) 1982-12-03 1982-12-03 Switch

Publications (2)

Publication Number Publication Date
JPS59103229A true JPS59103229A (en) 1984-06-14
JPH0586008B2 JPH0586008B2 (en) 1993-12-09

Family

ID=16620014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21228282A Granted JPS59103229A (en) 1982-11-10 1982-12-03 Switch

Country Status (1)

Country Link
JP (1) JPS59103229A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232518A (en) * 1985-04-09 1986-10-16 三菱電機株式会社 Switch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191916A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Power switching device
JPS57191914A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Power switching device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191916A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Power switching device
JPS57191914A (en) * 1981-05-20 1982-11-25 Mitsubishi Electric Corp Power switching device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61232518A (en) * 1985-04-09 1986-10-16 三菱電機株式会社 Switch

Also Published As

Publication number Publication date
JPH0586008B2 (en) 1993-12-09

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