JPH07336822A - Pressure-relieving apparatus for gas switch - Google Patents
Pressure-relieving apparatus for gas switchInfo
- Publication number
- JPH07336822A JPH07336822A JP6145396A JP14539694A JPH07336822A JP H07336822 A JPH07336822 A JP H07336822A JP 6145396 A JP6145396 A JP 6145396A JP 14539694 A JP14539694 A JP 14539694A JP H07336822 A JPH07336822 A JP H07336822A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- case
- pressure release
- peripheral edge
- relieving
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/568—Gas reservoirs with overpressure release, e.g. rupture membranes
Landscapes
- Patch Boards (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ＳＦ6 ガス等の絶縁ガ
スを封入した柱上開閉器等のガス開閉器において、ケー
ス内部の圧力が事故により異常に上昇した場合、ケース
の破損を防止するため、内部ガスをケース外に放出する
ようにしたガス開閉器の放圧装置に関する。BACKGROUND OF THE INVENTION The present invention relates to a gas switch such as a pole switch which is filled with an insulating gas such as SF 6 gas and prevents damage to the case when the pressure inside the case rises abnormally due to an accident. Therefore, the present invention relates to a pressure release device for a gas switch which releases internal gas to the outside of the case.
【０００２】[0002]
【従来の技術】従来のこの種放圧装置は、図３及び図４
に示す構成になっている。それらの図において、１はガ
ス開閉器の本体ケース、２はケース１に形成された放圧
口、３は放圧口２の周囲のケース１の内側に一体に形成
された外周壁であり、ケース１の面とほぼ直角になって
いる。４は外周壁３の先端から中央側へ形成された折曲
部、５は放圧口２を覆い周縁部６がケース１に当接した
放圧板、７は放圧板５の周縁部６の内側から折曲されて
形成された内周壁であり、外周壁３とほぼ平行に位置し
ている。８は放圧板５の中央部に膨出された弾性付与用
の膨出部である。2. Description of the Related Art A conventional pressure releasing device of this type is shown in FIGS.
It has the configuration shown in. In these figures, 1 is a gas switch main body case, 2 is a pressure release port formed in the case 1, 3 is an outer peripheral wall integrally formed inside the case 1 around the pressure release port 2, It is almost perpendicular to the surface of case 1. Reference numeral 4 is a bent portion formed from the tip of the outer peripheral wall 3 toward the center side, 5 is a pressure-release plate which covers the pressure-release port 2 and whose peripheral edge portion 6 is in contact with the case 1, and 7 is the inside of the peripheral edge portion 6 of the pressure-release plate 5. The inner peripheral wall is formed by being bent from and is located substantially parallel to the outer peripheral wall 3. Reference numeral 8 denotes a bulging portion for elasticity imparted to the central portion of the pressure release plate 5.
【０００３】９は放圧板５の周縁部６の一部１０に透設
された丸孔からなる２個の止め孔、１１は一部１０以外
の放圧板５の周縁部６に形成された複数個の切欠きであ
り、周縁部６の端縁に開口している。１２は外周壁３と
内周壁７との間に介在したＯリング、１３は放圧口２の
周縁のケース１に植設された複数本のスタッドであり、
止め孔９，切欠き１１に挿通している。１４は平座金１
５を介してスタッド１３に螺合し，放圧板５をケース１
に固定したナットであり、スタッド１３，ナット１４に
より固定具１６を構成している。Reference numeral 9 denotes two stopper holes formed of a circular hole provided in a part 10 of the peripheral edge portion 6 of the pressure releasing plate 5, and 11 denotes a plurality of holes formed in the peripheral edge portion 6 of the pressure releasing plate 5 other than the part 10. These are notches and are opened at the edge of the peripheral edge portion 6. Reference numeral 12 is an O-ring interposed between the outer peripheral wall 3 and the inner peripheral wall 7, and 13 is a plurality of studs planted in the case 1 on the periphery of the pressure release port 2.
It is inserted through the stop hole 9 and the notch 11. 14 is a plain washer 1
5 is screwed onto the stud 13 to attach the pressure release plate 5 to the case 1
The stud 13 and the nut 14 form a fixture 16.
【０００４】そして、ケース１内の圧力が上昇すると、
放圧板５の周縁部６の一部１０が止め孔９により固定状
態であるため、一部１０以外の周縁部６が滑り出して浮
き上り、各切欠き１１がスタッド１３から抜け、放圧板
５が折曲し、図４に示すように、放圧口２が開口し、ケ
ース１内のガスが放出される。このとき、放圧板５は変
形するのみで、飛散，落下はしない。When the pressure in the case 1 rises,
Since a part 10 of the peripheral edge portion 6 of the pressure release plate 5 is fixed by the stop hole 9, the peripheral edge portion 6 other than the part 10 slides out and floats up, each notch 11 comes out from the stud 13, and the pressure release plate 5 is released. When bent, the pressure release port 2 opens as shown in FIG. 4, and the gas in the case 1 is released. At this time, the pressure release plate 5 is only deformed, and is not scattered or dropped.
【０００５】[0005]
【発明が解決しようとする課題】従来の前記装置の場
合、内部ガスの放出時、放圧板５が反転状態になるた
め、Ｏリング１２が飛散するという問題点がある。In the case of the above-mentioned conventional apparatus, there is a problem that the O-ring 12 scatters because the pressure release plate 5 is turned over when the internal gas is released.
【０００６】また、放圧圧力の変更に際しては、各スタ
ッド１３の位置、３個の切欠き１１のスタッド１３とＯ
リング１２ないしは内周壁７との距離を変更する必要が
あり、その作業が困難であり、かつ、５個の固定具１６
を要するという問題点がある。Further, when changing the pressure release pressure, the position of each stud 13 and the studs 13 and O of the three notches 11 are changed.
It is necessary to change the distance from the ring 12 or the inner peripheral wall 7, the work is difficult, and the five fixtures 16
There is a problem that it requires.
【０００７】本発明は、前記の点に留意し、Ｏリングの
飛散を防止し、放圧圧力の変更を容易にし、かつ、固定
具を減少したガス開閉器の放圧装置を提供することを目
的とする。In view of the above points, the present invention provides a pressure release device for a gas switch, which prevents scattering of the O-ring, facilitates change of release pressure, and has a reduced number of fixtures. To aim.
【０００８】[0008]
【課題を解決するための手段】前記課題を解決するため
に、本発明のガス開閉器の放圧装置は、開閉器のケース
に形成された放圧口と、周縁部が前記ケースに当接し，
Ｏリングを介して前記放圧口を覆った放圧板と、前記周
縁部の対角の位置に透設された丸孔からなる止め孔と、
前記周縁部の前記対角と直交する対角の位置に形成さ
れ，端縁に開口した切欠きと、前記止め孔及び前記切欠
きに挿通し前記放圧板を前記ケースに装着した固定具と
を備えたものである。In order to solve the above-mentioned problems, a pressure release device for a gas switch according to the present invention has a pressure release port formed in a case of the switch and a peripheral portion thereof abutting the case. ，
A pressure release plate covering the pressure release port via an O-ring, and a stop hole formed of a circular hole provided at a diagonal position of the peripheral portion,
A notch formed at a diagonal position orthogonal to the diagonal of the peripheral edge portion and having an opening at an end edge; and a fixture having the pressure release plate inserted into the case through the stop hole and the notch. Be prepared.
【０００９】[0009]
【作用】前記のように構成された本発明のガス開閉器の
放圧装置は、放圧板の周縁部の対角の位置に丸孔からな
る止め孔が透設され、その対角と直交する対角の位置
に，端縁に開口した切欠きが形成され、止め孔、切欠き
に挿通された固定具により放圧板がケースに装着されて
いるため、ケース内の圧力の上昇により放圧板が変形し
た放圧時、対角の位置の両止め孔の固定具により、放圧
板及びＯリングが抑えられたままであり、放圧板はもと
よりＯリングも飛散しなく、放圧圧力の変更も切欠き部
分のみの調整により容易に行うことが可能であり、か
つ、固定具も４個のみで減少する。In the pressure relief device for a gas switch according to the present invention constructed as described above, a stop hole made of a circular hole is provided at a diagonal position of the peripheral edge of the pressure relief plate and is orthogonal to the diagonal. A notch with an opening at the edge is formed at a diagonal position, and the pressure relief plate is attached to the case by a fixing tool inserted in the stop hole and the notch. When the deformed pressure is released, the pressure relief plate and the O-ring are held down by the fixtures at the two diagonally opposite stop holes. The O-ring as well as the pressure relief plate does not scatter, and the pressure relief pressure can be changed. This can be easily done by adjusting only a part, and the number of fixtures is reduced to four.
【００１０】[0010]
【実施例】１実施例について図１及び図２を参照して説
明する。それらの図において、図３と同一符号は同一も
しくは相当するものを示し、図３と異なる点はつぎの通
りである。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these figures, the same symbols as those in FIG. 3 indicate the same or corresponding ones, and the points different from FIG. 3 are as follows.
【００１１】放圧板５の周縁部６の対角の位置に、丸孔
からなる止め孔９が透設され、その対角と直交する対角
の位置の周縁部６に、放圧板５の端縁に開口した切欠き
１１が形成され、２個ずつの止め孔９と切欠き１１に固
定具１６のスタッド１３が挿通され、放圧板５がケース
１に装着されている。A stop hole 9 made of a circular hole is provided at a diagonal position of the peripheral edge portion 6 of the pressure releasing plate 5, and an end of the pressure releasing plate 5 is provided at the peripheral edge portion 6 at a diagonal position orthogonal to the diagonal hole. A notch 11 having an opening at the edge is formed, two stud holes 9 and two studs 13 of a fixture 16 are inserted into the notch 11, and the pressure relief plate 5 is attached to the case 1.
【００１２】そして、ケース１内の圧力の上昇時、放圧
板５の対角の周縁部６が止め孔９の部分で固定状態であ
り，その対角と直交する対角の方向の周縁部６が滑り出
して浮き上がり、両切欠き１１がスタッド１３から抜
け、放圧板５が折曲し、図２に示すように、放圧口２が
開口してケース内のガスが放出され、Ｏリング１２は飛
散しない。なお、固定具１６としてねじを用い、ねじを
ケース１に螺合するようにしてもよい。When the pressure in the case 1 rises, the diagonal peripheral edge portion 6 of the pressure release plate 5 is fixed at the stopper hole 9 and the peripheral edge portion 6 in the diagonal direction orthogonal to the diagonal corner. Slides out and floats up, both notches 11 come out of the stud 13, the pressure relief plate 5 bends, and as shown in FIG. 2, the pressure relief port 2 opens and the gas in the case is released, so that the O-ring 12 becomes Do not scatter. A screw may be used as the fixture 16, and the screw may be screwed into the case 1.
【００１３】[0013]
【発明の効果】本発明は、以上説明したように構成され
ているため、つぎに記載する効果を奏する。本発明のガ
ス開閉器の放圧装置は、放圧板５の周縁部６の対角の位
置に丸孔からなる止め孔９が透設され、その対角と直交
する対角の位置に，端縁に開口した切欠き１１が形成さ
れ、止め孔９，切欠き１１に挿通された固定具１６によ
り放圧板５がケース１に装着されているため、ケース１
内の圧力の上昇により放圧板５が変形した放圧時、対角
の位置の両止め孔９の固定具１６により、放圧板５及び
Ｏリング１２が抑えられたままであり、放圧板５はもと
よりＯリング１２の飛散を防止することができ、放圧圧
力の変更も切欠き１１部分のみの調整により容易に行う
ことができ、かつ、固定具１６も４個のみで従来より減
少させることができる。Since the present invention is constructed as described above, it has the following effects. In the pressure relief device for a gas switch according to the present invention, a stop hole 9 made of a round hole is provided at a diagonal position of the peripheral edge portion 6 of the pressure relief plate 5, and an end is provided at a diagonal position orthogonal to the diagonal hole. Since the notch 11 having an opening at the edge is formed, and the pressure release plate 5 is attached to the case 1 by the fixing hole 16 and the fixture 16 inserted in the notch 11, the case 1
When the pressure release plate 5 is deformed due to the increase of the internal pressure, the pressure release plate 5 and the O-ring 12 are kept suppressed by the fixtures 16 of the two stop holes 9 at the diagonal positions. It is possible to prevent the O-ring 12 from scattering, the pressure release pressure can be easily changed by adjusting only the notch 11, and the number of the fixtures 16 can be reduced from the conventional one. .
【図１】Ａ，Ｂは本発明の１実施例の切断正面図，一部
の右側面図である。1A and 1B are a cutaway front view and a part of a right side view of an embodiment of the present invention.
【図２】図１の他の状態の切断正面図である。FIG. 2 is a cutaway front view of another state of FIG.
【図３】Ａ，Ｂは従来例の切断正面図，一部の右側面図
である。3A and 3B are a cutaway front view and a partial right side view of a conventional example.
【図４】図３の他の状態の切断正面図である。FIG. 4 is a cut front view of another state of FIG.
１ ケース ２ 放圧口 ５ 放圧板 ６ 周縁部 ９ 止め孔 １１ 切欠き １２ Ｏリング １６ 固定具 1 Case 2 Pressure Release Port 5 Pressure Release Plate 6 Peripheral Area 9 Stop Hole 11 Notch 12 O-ring 16 Fixture
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｈ０１Ｈ 33/53 Ｕ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location // H01H 33/53 U
Claims (1)
圧口を覆った放圧板と、 前記周縁部の対角の位置に透設された丸孔からなる止め
孔と、 前記周縁部の前記対角と直交する対角の位置に形成さ
れ，端縁に開口した切欠きと、 前記止め孔及び前記切欠きに挿通し前記放圧板を前記ケ
ースに装着した固定具とを備えたガス開閉器の放圧装
置。1. A pressure release port formed in a case of a switch, a pressure release plate having a peripheral edge abutting the case and covering the pressure release port via an O-ring, and a diagonal line of the peripheral edge. A stop hole formed of a circular hole formed at a position, a notch formed at a diagonal position orthogonal to the diagonal of the peripheral edge, and an opening at an edge, and inserted into the stop hole and the notch. A pressure release device for a gas switch, comprising: a fixture having the pressure release plate attached to the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6145396A JPH07336822A (en) | 1994-06-03 | 1994-06-03 | Pressure-relieving apparatus for gas switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6145396A JPH07336822A (en) | 1994-06-03 | 1994-06-03 | Pressure-relieving apparatus for gas switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07336822A true JPH07336822A (en) | 1995-12-22 |
Family
ID=15384298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6145396A Pending JPH07336822A (en) | 1994-06-03 | 1994-06-03 | Pressure-relieving apparatus for gas switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07336822A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006302521A (en) * | 2005-04-15 | 2006-11-02 | Nippon Kouatsu Electric Co | Pressure releasing device for circuit breaker |
| KR101135438B1 (en) * | 2011-09-05 | 2012-04-19 | (주)에스엠텍 | Surge arrester having rupture disk |
-
1994
- 1994-06-03 JP JP6145396A patent/JPH07336822A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006302521A (en) * | 2005-04-15 | 2006-11-02 | Nippon Kouatsu Electric Co | Pressure releasing device for circuit breaker |
| JP4592481B2 (en) * | 2005-04-15 | 2010-12-01 | 日本高圧電気株式会社 | Pressure release device for switch |
| KR101135438B1 (en) * | 2011-09-05 | 2012-04-19 | (주)에스엠텍 | Surge arrester having rupture disk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |