JPH0629874Y2 - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JPH0629874Y2 JPH0629874Y2 JP10441685U JP10441685U JPH0629874Y2 JP H0629874 Y2 JPH0629874 Y2 JP H0629874Y2 JP 10441685 U JP10441685 U JP 10441685U JP 10441685 U JP10441685 U JP 10441685U JP H0629874 Y2 JPH0629874 Y2 JP H0629874Y2
- Authority
- JP
- Japan
- Prior art keywords
- barrier
- exhaust
- insulating barrier
- arc extinguishing
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
- H01H2009/343—Venting arrangements for arc chutes with variable venting aperture function of arc chute internal pressure, e.g. resilient flap-valve or check-valve
Landscapes
- Breakers (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は消弧室内の高温高圧ガスを排出するための排
気孔を有する排気バリヤを備えてなる回路しや断器に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a circuit and a breaker provided with an exhaust barrier having an exhaust hole for exhausting high temperature and high pressure gas in an arc extinguishing chamber.
従来のこの種の回路しや断器が第５図〜第７図に示され
ている。図において、(1)はベース（１ａ）とカバー
（１ｂ）とからなる筐体、(2)はベース（１ａ）に固着
される固定子、(3)は固定子(2)の内側端部に固着される
固定接点、(4)は固定子(2)の外側端部に螺入される端子
ねじ、(5)は外部導体、(6)は固定子(2)に対して開閉動
作する可動子、(7)は可動子(6)に固着される可動接点、
(8)は筐体(1)内に形成される消弧室で、消弧板（８ａ）
が配設される。(9)は消弧室(8)と端子ねじ(4)側とを隔
離するように筐体(1)の両側溝（１０），（１０）に挿
着される排気バリヤで、消弧室(8)内の高温高圧ガスを
排出するための排気孔（９ａ）を有している。A conventional circuit or circuit breaker of this type is shown in FIGS. In the figure, (1) is a housing composed of a base (1a) and a cover (1b), (2) is a stator fixed to the base (1a), and (3) is an inner end of the stator (2). Fixed contact fixed to the, (4) terminal screw screwed into the outer end of the stator (2), (5) an outer conductor, (6) opens and closes the stator (2) The mover, (7) is a movable contact fixed to the mover (6),
(8) is an arc extinguishing chamber formed in the housing (1), and an arc extinguishing plate (8a)
Is provided. Reference numeral (9) is an exhaust barrier which is inserted into both side grooves (10) and (10) of the housing (1) so as to separate the arc extinguishing chamber (8) from the terminal screw (4) side. It has an exhaust hole (9a) for discharging the high temperature and high pressure gas in (8).
このような回路しや断器では、両接点(3)，(7)の開極に
ともない両接点(3)，(7)間に発生するアーク(A)が消弧
板（８ａ）に転移して消弧され、その際に発生する消弧
室(8)内の高温高圧ガスは排気孔（９ａ）から外部に排
出される。従つて、筐体(1)内の圧力の上昇を押えるこ
とができる。In such a circuit breaker and circuit breaker, the arc (A) generated between the contacts (3) and (7) due to the opening of the contacts (3) and (7) is transferred to the arc extinguishing plate (8a). Then, the arc is extinguished, and the high-temperature high-pressure gas in the arc extinguishing chamber (8) generated at that time is discharged to the outside through the exhaust hole (9a). Therefore, it is possible to suppress an increase in pressure inside the housing (1).
上記のような従来の回路しや断器では、可動子(6)から
のアークが点線（Ａ１）で示すように消弧板（８ａ）か
ら排気孔（９ａ）を通つて端子ねじ(4)に、また可動子
(6)からのアークが点線（Ａ２）で示すようにそのまま
排気孔（９ａ）を通つて端子ねじ(4)に飛散することが
あるので、可動子(6)と端子ねじ(4)との間に電流が流れ
てしや断不能になるという問題点があつた。In the above-mentioned conventional circuit breaker and disconnector, the arc from the mover (6) passes through the exhaust hole (9a) from the arc extinguishing plate (8a) as shown by the dotted line (A1), and then the terminal screw (4) In addition, mover
Since the arc from (6) may pass through the exhaust hole (9a) and scatter on the terminal screw (4) as shown by the dotted line (A2), the mover (6) and the terminal screw (4) There was a problem that current flowed between them and it became impossible to disconnect.
この考案は、かかる問題点を解決するためになされたも
ので、排気バリヤの排気孔を通しての端子へのアークタ
ツチを防止することにより確実なしや断が行なえ、高い
信頼性が得られる回路しや断器を提供することを目的と
する。The present invention has been made to solve such a problem, and by preventing arc touching to the terminal through the exhaust hole of the exhaust barrier, it is possible to make sure disconnection and disconnection, and to obtain high reliability circuit and disconnection. The purpose is to provide a container.
この考案に係る回路しや断器は、排気バリヤの外面に沿
わせて設けた可撓性絶縁バリヤを備え、この絶縁バリヤ
に排気孔を覆う部分が外向きに折曲し易いように幅方向
の溝を設けたものである。The circuit breaker and the circuit breaker according to the present invention are provided with a flexible insulating barrier provided along the outer surface of the exhaust barrier, and the portion covering the exhaust hole is easily bent outward in the width direction of the insulating barrier. The groove is provided.
この考案においては、排気バリヤの排気孔を可撓性絶縁
バリヤで覆うので端子へのアークタツチが防止できる。
そして消弧室内の高温高圧ガスは可撓性絶縁バリヤを溝
の部分で外向きに折曲させることにより排気孔から排出
されるので内圧は上昇しない。In this invention, since the exhaust hole of the exhaust barrier is covered with the flexible insulating barrier, it is possible to prevent the arc touch to the terminal.
The high-temperature high-pressure gas in the arc extinguishing chamber is discharged from the exhaust hole by bending the flexible insulating barrier outward at the groove portion, so that the internal pressure does not rise.
第１図〜第４図のこの考案の一実施例を示すもので、
（１１）は排気バリヤ(9)の外面に沿わせた可撓性絶縁
バリヤで、排気孔（９ａ）を覆う可動バリヤ部（１１
ａ）とこの可動バリヤ部（１１ａ）を支持する固定バリ
ヤ部（１１ｂ）とで構成される。この固定バリヤ部（１
１ｂ）の固定子側端部（１１０）を排気バリヤ(9)の内
面に折り返すと共にその両側端（１１１），（１１１）
を排気バリヤ(9)と共に両側溝（１０），（１０）に挿
入してある。（１２）は絶縁バリヤ（１１）の可動バリ
ヤ部（１１ａ）と固定バリヤ部（１１ｂ）との境界線上
に設けた溝で、可動バリヤ部（１１ａ）の折曲を容易な
らしめるものである。1 to 4 show one embodiment of the present invention,
(11) is a flexible insulating barrier along the outer surface of the exhaust barrier (9), which is a movable barrier part (11) that covers the exhaust hole (9a).
a) and a fixed barrier portion (11b) that supports the movable barrier portion (11a). This fixed barrier part (1
The stator side end (110) of 1b) is folded back to the inner surface of the exhaust barrier (9) and both side ends (111), (111)
Is inserted into both side grooves (10), (10) together with the exhaust barrier (9). Reference numeral (12) is a groove provided on the boundary line between the movable barrier portion (11a) and the fixed barrier portion (11b) of the insulating barrier (11) for facilitating bending of the movable barrier portion (11a).
このように排気バリヤ(9)の外面に可撓性絶縁バリヤ
（１１）を設けておくと、その可動バリヤ部（１１ａ）
で排気孔（９ａ）を覆えるので端子ねじ(4)へのアーク
タツチが防止できるし、外部からのゴミなどの侵入も防
止できる。そして消弧室(8)内の高温高圧ガスは可撓性
絶縁バリヤ（１１）の可動バリヤ部（１１ａ）を第１図
中一点鎖線で示すように溝（１２）の部分から折り曲げ
て外向きに湾曲させ、外部に排出される。この溝（１
２）により絶縁バリヤ（１１）は折曲し易くなるので、
小さなしや断電流にでも絶縁バリヤ（１１）が反応して
折曲するのでガス排出効率が高く冷却効果が大きくな
る。As described above, when the flexible insulating barrier (11) is provided on the outer surface of the exhaust barrier (9), the movable barrier portion (11a) is provided.
Since the exhaust hole (9a) can be covered with, the arc touch to the terminal screw (4) can be prevented, and the intrusion of dust from the outside can be prevented. The high-temperature high-pressure gas in the arc-extinguishing chamber (8) bends the movable barrier portion (11a) of the flexible insulating barrier (11) from the groove (12) portion as shown by the alternate long and short dash line in FIG. Bent to the outside and discharged. This groove (1
2) makes the insulation barrier (11) easier to bend,
The insulating barrier (11) reacts and bends even with a small stroke or breaking current, so that the gas discharge efficiency is high and the cooling effect is large.
上記実施例では絶縁バリヤ（１１）を両側溝（１０），
（１０）に挿入して筐体(1)に保持するものを示した
が、リベツトなどにより排気バリヤ(9)に固着する方式
の絶縁バリヤであつてもよい。In the above embodiment, the insulating barrier (11) is provided on both sides of the groove (10),
Although it is shown that it is inserted into (10) and held in the housing (1), it may be an insulating barrier of a type that is fixed to the exhaust barrier (9) by rivets or the like.
また上記実施例では溝（１２）を絶縁バリヤ（１１）の
外面に設けたが、内面に設けてもよい。Further, although the groove (12) is provided on the outer surface of the insulating barrier (11) in the above embodiment, it may be provided on the inner surface.
この考案は以上説明したとおり、排気バリヤの外面に可
撓性絶縁バリヤを設けたので排気バリヤの排気孔を通し
ての端子へのアークタツチが防止でき、確実なしや断が
行なえ、高い信頼性が得られるという効果がある。As described above, since the flexible insulating barrier is provided on the outer surface of the exhaust barrier, it is possible to prevent arc touching to the terminal through the exhaust hole of the exhaust barrier, and it is possible to perform reliable disconnection and high reliability. There is an effect.
またこの考案は以上説明したとおり、絶縁バリヤに幅方
向の溝を設けたので、絶縁バリヤの折曲が容易となり、
小さなしや断電流にでも反応してガス排出効率を高め冷
却効果が向上するという効果もある。Further, as described above, in this invention, since the insulating barrier is provided with the groove in the width direction, the insulating barrier can be easily bent,
There is also an effect that the gas discharge efficiency is increased and the cooling effect is improved by reacting to a small amount of electricity or breaking current.
第１図はこの考案の一実施例を示す主要部分であつて第
３図の線Ｉ−Ｉの断面図、第２図は第１図の線II−IIの
断面図、第３図は第１図の線III−IIIの断面図、第４図
は絶縁バリヤの斜視図、第５図は従来のものを示す主要
部分であつて第７図の線Ｖ−Ｖの断面図、第６図は第５
図の線VI−VIの断面図、第７図は第５図の線VII−VIIの
断面図である。 図において、(1)は筐体、(2)は固定子、(4)は端子ね
じ、(8)は消弧室、(9)は排気バリヤ、（９ａ）は排気
孔、（１１）は絶縁バリヤ、（１２）は溝である。 なお、各図中同一符号は同一または相当部分を示す。FIG. 1 is a main part showing an embodiment of the present invention and is a sectional view taken along the line I--I in FIG. 3, FIG. 2 is a sectional view taken along the line II--II in FIG. 1, and FIG. 1 is a sectional view taken along line III-III in FIG. 1, FIG. 4 is a perspective view of an insulating barrier, FIG. 5 is a main part showing a conventional one, and a sectional view taken along line VV in FIG. 7 and FIG. Is the fifth
FIG. 7 is a sectional view taken along line VI-VI in the figure, and FIG. 7 is a sectional view taken along line VII-VII in FIG. In the figure, (1) is a housing, (2) is a stator, (4) is a terminal screw, (8) is an arc extinguishing chamber, (9) is an exhaust barrier, (9a) is an exhaust hole, and (11) is An insulating barrier, (12) is a groove. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 山県 伸示 広島県福山市緑町１番８号 三菱電機株式 会社福山製作所内 (56)参考文献 実開 昭60−75944（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Creator Shinji Yama prefecture 1-8 Midoricho, Fukuyama city, Hiroshima prefecture Mitsubishi Electric Corporation Fukuyama factory (56) References
Claims (1)
対して開閉動作する可動子と、前記筐体内に形成される
消弧室と、前記固定子に接続される端子と、この端子と
前記消弧室とを隔離するように前記筐体に設けられかつ
前記消弧室内の高温高圧ガスを排出するための排気孔を
備えた排気バリヤとを有する回路しや断器において、前
記排気バリヤの外面に沿わせて設けた可撓性絶縁バリヤ
を備え、この絶縁バリヤに前記排気孔を覆う部分が外向
きに折曲し易いように幅方向の溝を設けたことを特徴と
する回路しや断器。1. A stator fixed to a housing, a mover that opens and closes with respect to the stator, an arc extinguishing chamber formed in the housing, and a terminal connected to the stator. In a circuit or breaker having an exhaust barrier provided in the housing so as to separate the terminal and the arc extinguishing chamber and having an exhaust hole for discharging the high-temperature high-pressure gas in the arc extinguishing chamber, A flexible insulating barrier provided along the outer surface of the exhaust barrier is provided, and a groove in the width direction is provided in the insulating barrier so that the portion covering the exhaust hole can be easily bent outward. Circuit and disconnection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10441685U JPH0629874Y2 (en) | 1985-07-08 | 1985-07-08 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10441685U JPH0629874Y2 (en) | 1985-07-08 | 1985-07-08 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6212250U JPS6212250U (en) | 1987-01-24 |
| JPH0629874Y2 true JPH0629874Y2 (en) | 1994-08-10 |
Family
ID=30977889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10441685U Expired - Lifetime JPH0629874Y2 (en) | 1985-07-08 | 1985-07-08 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629874Y2 (en) |
-
1985
- 1985-07-08 JP JP10441685U patent/JPH0629874Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6212250U (en) | 1987-01-24 |
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