JPH0340701A - Switchgear provided with bursting mechanism - Google Patents
Switchgear provided with bursting mechanismInfo
- Publication number
- JPH0340701A JPH0340701A JP1173345A JP17334589A JPH0340701A JP H0340701 A JPH0340701 A JP H0340701A JP 1173345 A JP1173345 A JP 1173345A JP 17334589 A JP17334589 A JP 17334589A JP H0340701 A JPH0340701 A JP H0340701A
- Authority
- JP
- Japan
- Prior art keywords
- pressure relief
- hole
- board
- bursting
- chamber
- 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
- 230000007246 mechanism Effects 0.000 title claims description 22
- 230000009172 bursting Effects 0.000 title abstract 7
- 238000000926 separation method Methods 0.000 claims description 17
- 230000005856 abnormality Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 238000005192 partition Methods 0.000 abstract 4
- 150000002739 metals Chemical class 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、電路の開閉を行なう放圧機構付開閉装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a switching device with a pressure relief mechanism for opening and closing an electric circuit.
［従来の技術］
開閉装置内部の密閉されたケーブル室の内部において、
例えば短絡事故が発生した場合、この時発生するアーク
によりケーブル室内の圧力は急激に上昇する。このため
、ケーブル室には上昇した圧力を外部へ放圧するための
放圧機構が設けられている。従来の放圧機構にはケーブ
ル室の壁に孔を設け、その孔を回転自在なヒンジ部を有
する扉状のものにより塞ぐ構造のものがあった。この場
合、ケーブル室内の圧力が急激に上昇すると、その圧力
により罪状のものがケーブル室の外側へ開き、ケーブル
室内の急激な圧力上昇を外部へ放圧するものであった。[Prior art] Inside the sealed cable room inside the switchgear,
For example, when a short circuit accident occurs, the pressure inside the cable chamber increases rapidly due to the arc generated at this time. For this reason, the cable chamber is provided with a pressure relief mechanism for releasing the increased pressure to the outside. Some conventional pressure relief mechanisms have a structure in which a hole is provided in the wall of the cable room and the hole is closed by a door-like member having a rotatable hinge portion. In this case, when the pressure inside the cable room suddenly rose, the pressure would cause the culprit to open to the outside of the cable room, releasing the sudden pressure rise inside the cable room to the outside.
［発明が解決しようとする課題］
従来の放圧機構付開閉装置は、回転自在なヒンジ部を扉
と壁の間に設けるために溶接やボルトによりそれぞれを
固着する必要があった。このため、従来の装置は組立時
の作業効率が悪く、部品点数も多く、装置が高価になる
という問題を有していた。[Problems to be Solved by the Invention] In the conventional opening/closing device with a pressure relief mechanism, in order to provide a rotatable hinge portion between the door and the wall, it was necessary to secure each door and wall with welding or bolts. For this reason, conventional devices have had problems in that the work efficiency during assembly is poor, the number of parts is large, and the devices are expensive.
本発明は上記のような問題を解消するためになされたも
ので、簡単な構造で容易に組立てができるとともに安価
な放圧機構付開閉装置を得ることを目的とする。The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to obtain an opening/closing device with a pressure relief mechanism that has a simple structure, can be easily assembled, and is inexpensive.
［課題を解決するための手段］
本発明に係る放圧機構付開閉装置は、開閉装置のケーブ
ル室と開閉器室とを隔てる少なくとも１つの孔を有する
分Ｉｌｌ壁と、前記分離壁の開閉器側の面に当接して前
記少なくとも１つの孔を塞ぎその孔縁に係合する突起を
有する放圧板と、前記放圧板を前記分離壁の一方の孔縁
に係着させる第１の係着手段と、前記放圧板を前記分離
壁の他方の孔縁に係合させ、前記ケーブル室内の異常時
に放圧板を離脱させるよう前記第１の係着手段より小さ
い剛性をもつ第２の係着手段とを具備するものである。[Means for Solving the Problems] A switchgear with a pressure relief mechanism according to the present invention includes a wall having at least one hole separating a cable chamber and a switch chamber of the switchgear, and a switch of the separation wall. a pressure relief plate having a protrusion that comes into contact with a side surface to close the at least one hole and engages with the edge of the hole; and a first engagement means that engages the pressure relief plate with the edge of one of the holes of the separation wall. and a second fastening means having a rigidity smaller than that of the first fastening means so as to engage the pressure relief plate with the other hole edge of the separation wall and detach the pressure relief plate in the event of an abnormality in the cable chamber. It is equipped with the following.
［作用］
本発明における放圧機構は、ケーブル室内部において、
事故などにより発生したアークがケーブル室内の圧力を
急激に上昇させた時、第２の係着手段により放圧板は分
離壁から開閉器室側へ外れる。次に第１の係着手段が分
１１１ｍ壁の孔縁から外れることにより、放圧板は完全
に分離壁から開放され、ケーブル室内の上昇した圧力は
外部へ放圧される。[Function] The pressure relief mechanism in the present invention has the following functions inside the cable room:
When an arc generated due to an accident or the like suddenly increases the pressure in the cable chamber, the pressure relief plate is detached from the separation wall toward the switch chamber by the second fastening means. Next, when the first fastening means comes off the edge of the hole in the 111m wall, the pressure relief plate is completely released from the separation wall, and the increased pressure in the cable chamber is released to the outside.
［実施例］
本発明の放圧機構付開閉装置の一実施例を示す図を参照
して説明する。第１図は一実施例による放圧機構付開閉
装置の放圧機構部を示す正面図、第２図及び第３図は第
１図のｎ−ｎ線及びＩＩＩ−ＩＩＩ線によるそれぞれの
断面図、第４図は第３図の放圧機構が動作したところを
示す断面図、第５図は第１図の放圧機構付開閉装置の全
体を示す斜視図である。[Embodiment] An embodiment of the switchgear with a pressure relief mechanism of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a pressure relief mechanism section of a switchgear with a pressure relief mechanism according to an embodiment, and FIGS. 2 and 3 are sectional views taken along line nn and III-III in FIG. 1, respectively. 4 is a sectional view showing the pressure relief mechanism shown in FIG. 3 in operation, and FIG. 5 is a perspective view showing the entire opening/closing device with the pressure relief mechanism shown in FIG. 1.
本実施例の放圧機構付開閉装置は、第５図に示すように
開閉器１０ａが配設された開閉器室１０、と電路のケー
ブルと接続するケーブル室１１．１１．１１とにより構
成されている。この開閉器室ｌＯとケーブル室１１．１
１．１１は分離壁２．２．２によりそれぞれ隔てられて
いる。この分離壁２．２．２には開閉器室１０と各ケー
ブル室１１．１１．１１を連通ずる長方形の孔２ａ。As shown in FIG. 5, the switchgear with a pressure relief mechanism of this embodiment is composed of a switch chamber 10 in which a switch 10a is disposed, and a cable chamber 11.11.11 connected to the cable of the electric circuit. ing. This switch room lO and cable room 11.1
1.11 are separated from each other by a separating wall 2.2.2. This separation wall 2.2.2 has a rectangular hole 2a that communicates the switch chamber 10 with each cable chamber 11.11.11.
２ａ、 ２ａがそれぞれ設けられている。第１図はケー
ブル室側から見た１つの放圧機構部の正面図であるが、
第１図に示すように、孔２ａには放圧板ｌが設けられて
おり、放圧板１は孔２ａよりその形状は大きく、分離壁
２の開閉器室ｌＯ側に当接して孔２ａの全体を塞いでい
る。また、この放圧板ｌが放圧板ｌの分１１ｔｌ１２面
に沿った移動を禁止するために、放圧板ｌには孔２ａの
四隅に係合する突起３．３．３．３がそれぞれ設けられ
ている。さらに、放圧板ｌの長手方向の両縁中央部近傍
には、放圧板ｌと分離壁２とを係着する第１の係着手段
と第２の係着手段が対向してそれぞれ設けられている。2a and 2a are provided, respectively. Figure 1 is a front view of one pressure relief mechanism section seen from the cable room side.
As shown in FIG. 1, the hole 2a is provided with a pressure relief plate 1. The pressure relief plate 1 is larger in shape than the hole 2a, and is in contact with the switch chamber lO side of the separation wall 2 to cover the entire hole 2a. is blocking the In addition, in order to prevent the pressure relief plate l from moving along the surface 11tl12 of the pressure relief plate l, the pressure relief plate l is provided with protrusions 3,3,3.3 that engage with the four corners of the hole 2a, respectively. There is. Further, near the center of both longitudinal edges of the pressure relief plate l, first and second engagement means for engaging the pressure relief plate l and the separation wall 2 are provided facing each other. There is.
第１の係着手段は、第２図に示すように、第１の取付ボ
ルト７により第１の係着金具６を第１のスペーサ９を介
して放圧板ｌに取付けである。一方、第３図に示すよう
に、第２の係着手段は第２の取付はボルト５により第２
の係着金具４を第２のスペーサ８を介して取付けである
。但し第２の係着金具４は第１の係着金具６より剛性の
弱い、例えば薄い銅板などで作られている。それぞれの
ケーブル室１１．１１．１１の上部にある開閉器室ｌＯ
の天井の壁には、それぞれの放圧板１．１．１の略直上
に金銅で覆った外部と連通ずる開口部１２．１２．１２
がそれぞれ設けられている。The first fastening means, as shown in FIG. 2, is to fasten the first fastening fitting 6 to the pressure relief plate l with a first mounting bolt 7 via a first spacer 9. On the other hand, as shown in FIG.
The fastening fitting 4 is attached via the second spacer 8. However, the second fastening metal fitting 4 is made of a material having lower rigidity than the first fastening metal fitting 6, such as a thin copper plate. Switchgear room lO at the top of each cable room 11.11.11
There are openings 12.12.12 covered with gilt bronze and communicating with the outside approximately directly above each pressure relief plate 1.1.1 in the ceiling wall of the
are provided for each.
上記のような構成の本発明の放圧機構付開閉装置の動作
について説明する。もし、どれか１つのケーブル室１１
内部において、短絡事故が発生した場合、この時発生す
るアークによりケーブル室１１内の圧力は急激に上昇す
る。このため、第３図に示す矢印Ａ方向の押圧力が放圧
板ｌに加わる。このため、第４図に示すように、第２の
係着金具４は矢印Ａ方向の押圧力に抗しきれず折れ鋤っ
て、放圧板ｌは開閉器室１０側へ第１の係着手段を中心
に回転する。そして、最終的に第１の係着手段も孔２ａ
の縁から外れて、放圧板ｌは開閉器室１０内に飛び出す
。したがって、ケーブル室１０内の上昇した圧力は、分
離壁２の孔２ａを通り、ざらにｔｔｆｌ閉器室ｌＯの天
井壁の開口部１２．１２．１２を通過して外部へ放圧さ
れる。この時、放圧板ｌは回転しながら飛び出すため、
ある程度その飛び出す方向を限定でき、装置内部の損傷
を少なくすることができる。The operation of the opening/closing device with a pressure relief mechanism of the present invention configured as described above will be explained. If any one cable room 11
If a short circuit accident occurs inside, the pressure inside the cable room 11 will rise rapidly due to the arc generated at this time. Therefore, a pressing force in the direction of arrow A shown in FIG. 3 is applied to the pressure relief plate l. Therefore, as shown in FIG. 4, the second fastening fitting 4 cannot resist the pressing force in the direction of the arrow A and breaks, and the pressure relief plate l is moved toward the switch chamber 10 side by the first fastening means. Rotate around. Finally, the first fastening means is also connected to the hole 2a.
The pressure relief plate l comes off the edge of the switch chamber 10 and pops out into the switch chamber 10. Therefore, the increased pressure in the cable room 10 passes through the hole 2a of the separating wall 2 and roughly through the opening 12.12.12 in the ceiling wall of the TTFL enclosure room 10, and is released to the outside. At this time, the pressure relief plate l pops out while rotating, so
The direction in which it pops out can be limited to some extent, and damage to the inside of the device can be reduced.
それぞれの放圧板１． Ｉ、 Ｉ、は対応するそれぞれ
の孔２ａ、 ２ａ、 ２ａより大きい形状をしており、
かつ、この放圧板１．１． ｌは分離を２の開閉蒸室ｌ
Ｏ側から当接されているため、それぞれの放圧板１．
ｌ、 １はケーブル室１１．１１．１１内へは入らない
逆止構造になっている。このため、上記の穴常時に開閉
器室１０内から他の正常なケーブル室ＩＩ、１１へ通じ
る分離型２の孔２ａ、・２ａはそれぞれの放圧板１，１
により塞がれており、異常の発生したケーブル室１１の
上昇した圧力は正常なケーブル室１１．１１内へ放圧さ
れない。開閉器室１０の天井の壁に設けた開口部１２．
１２．１２には、それぞれ金網が張り付けであるために
、飛び出した放圧板ｌは開閉装置の外部へ放出されるこ
とはない。Each pressure relief plate 1. I, I, have a larger shape than the corresponding holes 2a, 2a, 2a,
And this pressure relief plate 1.1. 1 is a separation steam chamber with 2 openings and closings.
Since they are in contact from the O side, each pressure relief plate 1.
1 and 1 have a non-return structure that prevents them from entering the cable room 11.11.11. For this reason, the holes 2a, 2a of the separate type 2, which always communicate from the inside of the switch chamber 10 to the other normal cable chambers II, 11, are connected to the respective pressure relief plates 1, 1.
The increased pressure in the abnormal cable chamber 11 is not released into the normal cable chamber 11.11. An opening 12 provided in the wall of the ceiling of the switch room 10.
12. In each case, the wire mesh is attached, so the pressure relief plate l that pops out is not released to the outside of the switchgear.
なお、上記実施例では放圧仮ｌの四隅に突起３．３３．
３を設けて、放圧板ｌの分離壁２面に沿った移動を規制
しているが、突起３．３．３．３の代わりに放圧板１の
四隅にボルトを取付けて、このボルトの頭部を分離壁２
の孔２ａのｎ ＩＱｇに係合させてもよい。In addition, in the above embodiment, projections 3, 33.
3 is provided to restrict the movement of the pressure relief plate l along the two sides of the separation wall, but bolts are attached to the four corners of the pressure relief plate 1 instead of the protrusions 3.3.3.3, and the heads of these bolts are Separating wall 2
may be engaged with the n IQg of the hole 2a.
また、第１の係着手段を第６図に示す形状のクリップ１
７を用い、第２の係着手段に第７図に示す形状のバネ板
１８を放圧板ｌに適宜設けることにより、放圧板はさら
に容易に分離壁２の孔２ａへ取付けることが可能となる
。Further, the first fastening means is a clip 1 having the shape shown in FIG.
7, and by appropriately providing the spring plate 18 having the shape shown in FIG. 7 as the second fastening means on the pressure relief plate l, the pressure relief plate can be more easily attached to the hole 2a of the separation wall 2. .
［発明の効果］
以上のように、本発明によれば放圧仮に簡単な構造の第
１の係着手段と第２の係着手段を設けることにより、分
離壁の孔に容易に取付けることができるため作業効率が
良く、安価で且つ安全性の高い装置を提供できる効果が
ある。[Effects of the Invention] As described above, according to the present invention, by providing the first fastening means and the second fastening means with a simple structure, the pressure relief device can be easily attached to the hole in the separation wall. This has the effect of providing a device that is highly efficient, inexpensive, and highly safe.
第１図は本発明の放圧機構付開閉装置の一実施例を示す
放圧機構の正面図、第２図は第１図の■■線による部分
断面図、第３図は第１図のｎ１Ｉｎ線による部分断面図
、第４図は第３図の放圧機構の動作時の断面図、第５図
は本発明の放圧機構付開閉装置の一実施例を示す全体斜
視図、第６図及び第７図は本発明の放圧機構付開閉装置
の他の実施例を示す部分断面図である。
図において、ｌは放圧板、２は分離壁、３は突起、４は
第２の係着金具、６は第１の係着金具である。
なお、各図中同一符号は同−又は相当部分を示す。FIG. 1 is a front view of a pressure relief mechanism showing an embodiment of the switchgear with pressure relief mechanism of the present invention, FIG. 2 is a partial cross-sectional view taken along the line ■■ in FIG. 1, and FIG. 4 is a sectional view of the pressure relief mechanism shown in FIG. 3 in operation; FIG. 5 is an overall perspective view showing an embodiment of the switchgear with pressure relief mechanism of the present invention; FIG. 7 and 7 are partial sectional views showing other embodiments of the opening/closing device with a pressure relief mechanism of the present invention. In the figure, l is a pressure release plate, 2 is a separation wall, 3 is a projection, 4 is a second fastening metal fitting, and 6 is a first fastening metal fitting. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
くとも１つの孔を有する分離壁、前記分離壁の開閉器側
の面に当接して前記少なくとも１つの孔を塞ぎその孔縁
に係合する突起を有する放圧板、 前記放圧板を前記分離壁の一方の孔縁に係着させる第１
の係着手段、 前記放圧板を前記分離壁の他方の孔縁に係合させ、前記
ケーブル室内の異常時に放圧板を離脱させるよう前記第
１の係着手段より小さい剛性をもつ第２の係着手段、 を具備することを特徴とする放圧機構付開閉装置。(1) A separation wall having at least one hole that separates the cable room and the switch room of the switchgear, which abuts against the switch side surface of the separation wall to close the at least one hole and engage with the edge of the hole. a pressure relief plate having a projection that engages the pressure relief plate with a hole edge of one of the separation walls;
a second engaging means having a lower rigidity than the first engaging means for engaging the pressure relief plate with the other hole edge of the separation wall and detaching the pressure relief plate in the event of an abnormality in the cable room; An opening/closing device with a pressure relief mechanism, characterized in that it is equipped with a means for attaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1173345A JPH0777481B2 (en) | 1989-07-04 | 1989-07-04 | Switchgear with pressure relief mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1173345A JPH0777481B2 (en) | 1989-07-04 | 1989-07-04 | Switchgear with pressure relief mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0340701A true JPH0340701A (en) | 1991-02-21 |
| JPH0777481B2 JPH0777481B2 (en) | 1995-08-16 |
Family
ID=15958699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1173345A Expired - Lifetime JPH0777481B2 (en) | 1989-07-04 | 1989-07-04 | Switchgear with pressure relief mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0777481B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224067A (en) * | 2001-02-02 | 2002-08-13 | Fukuda Denshi Co Ltd | Electrocardiogram information processor and output control method of electrocardiogram information |
| US8842421B2 (en) | 2012-10-22 | 2014-09-23 | Central Electric Manufacturing Company | Arc-resistant switchgear enclosure with latch for vent flap |
| EP3370315A1 (en) * | 2017-03-01 | 2018-09-05 | ABB Technology Oy | Pressure relief device with sealing means |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543241A (en) * | 1977-06-08 | 1979-01-11 | Meidensha Electric Mfg Co Ltd | Enclosed switchboard |
| JPS54129337A (en) * | 1978-03-30 | 1979-10-06 | Toshiba Corp | Enclosed switchboard |
| JPS54173935U (en) * | 1978-05-30 | 1979-12-08 | ||
| JPS5863814U (en) * | 1981-10-23 | 1983-04-28 | 中部電力株式会社 | Pressure relief mechanism for ground-mounted equipment |
-
1989
- 1989-07-04 JP JP1173345A patent/JPH0777481B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS543241A (en) * | 1977-06-08 | 1979-01-11 | Meidensha Electric Mfg Co Ltd | Enclosed switchboard |
| JPS54129337A (en) * | 1978-03-30 | 1979-10-06 | Toshiba Corp | Enclosed switchboard |
| JPS54173935U (en) * | 1978-05-30 | 1979-12-08 | ||
| JPS5863814U (en) * | 1981-10-23 | 1983-04-28 | 中部電力株式会社 | Pressure relief mechanism for ground-mounted equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002224067A (en) * | 2001-02-02 | 2002-08-13 | Fukuda Denshi Co Ltd | Electrocardiogram information processor and output control method of electrocardiogram information |
| US8842421B2 (en) | 2012-10-22 | 2014-09-23 | Central Electric Manufacturing Company | Arc-resistant switchgear enclosure with latch for vent flap |
| EP3370315A1 (en) * | 2017-03-01 | 2018-09-05 | ABB Technology Oy | Pressure relief device with sealing means |
| CN108541173A (en) * | 2017-03-01 | 2018-09-14 | Abb技术有限公司 | Pressure releasing equipment |
| CN108541173B (en) * | 2017-03-01 | 2020-12-18 | Abb瑞士股份有限公司 | Pressure relief device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0777481B2 (en) | 1995-08-16 |
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