JPS63261639A - Vacuum valve - Google Patents
Vacuum valveInfo
- Publication number
- JPS63261639A JPS63261639A JP9524687A JP9524687A JPS63261639A JP S63261639 A JPS63261639 A JP S63261639A JP 9524687 A JP9524687 A JP 9524687A JP 9524687 A JP9524687 A JP 9524687A JP S63261639 A JPS63261639 A JP S63261639A
- Authority
- JP
- Japan
- Prior art keywords
- arc shield
- cylindrical portion
- support fitting
- vacuum valve
- inner diameter
- 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
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000005219 brazing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
- H01H2033/66276—Details relating to the mounting of screens in vacuum switches
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (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】
〔発明の目的〕
（産業上の利用分野）
本発明は、真空バルブに係り、特に絶縁容器の内部に設
けるアークシールドの取付支持部の構造に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a vacuum valve, and particularly to the structure of a mounting support portion of an arc shield provided inside an insulating container.
（従来の技術）
一般に、真空バルブは、絶縁容器の両端開口部をそれぞ
れ端板で閉止した真空容器の内部に接離自在とした一対
の電極を備え、電流開閉時に＠極から発生する金属蒸気
で絶縁容器の内壁が汚損するのを防止するため、上記し
た一対の電極の周囲を取巻くようにした円筒状のアーク
シールドを絶縁容器に取付けて構成している。(Prior Art) In general, a vacuum valve is equipped with a pair of electrodes that can be freely connected and separated inside a vacuum container whose openings at both ends of the insulating container are closed with end plates, and metal vapor generated from the electrodes when the current is switched on and off. In order to prevent the inner wall of the insulating container from becoming contaminated, a cylindrical arc shield is attached to the insulating container so as to surround the pair of electrodes described above.
第７図は、このアークシールドの取付支持部を示す断面
図で、１はアルミナ磁器からなり内壁に断面が角形状の
突起部１ａを設けた円筒状の絶縁容器、２はアークシー
ルド、３はこのアークシールド２の支持金具である。な
お、絶縁容器１の図示しない両端開口部はそれぞれ端板
（図示しない）で閉止されて真空容器４を形成し、この
真空容器４の内部には接離自在とした一対の電極（図示
しない）が設けられている。FIG. 7 is a cross-sectional view showing the mounting support part of this arc shield, in which 1 is a cylindrical insulating container made of alumina porcelain and has a protrusion 1a with a square cross section on its inner wall, 2 is an arc shield, and 3 is a cylindrical insulating container with a rectangular cross section. This is a support metal fitting for this arc shield 2. Note that openings at both ends (not shown) of the insulating container 1 are each closed with end plates (not shown) to form a vacuum container 4, and inside this vacuum container 4, a pair of electrodes (not shown) that can be freely brought into contact with and separated from them are provided. is provided.
上記した支持金具３は、不等辺のＬ状に折曲げて形成さ
れたもので、ろう付けにより予めアークシールド２の外
側面に取付けておき、絶縁容器１の内部に挿入してから
突起部１ａに支持金具３の長辺の端部を図示矢印のよう
に折曲げて係合させることにより、アークシールド２を
取付支持する構成になっている。The above-mentioned support fitting 3 is formed by bending into an L-shape with scalene sides, and is attached to the outer surface of the arc shield 2 by brazing in advance, and then inserted into the inside of the insulating container 1, and then inserted into the protrusion 1a. The arc shield 2 is attached and supported by bending and engaging the long side ends of the support fittings 3 as shown by the arrows in the figure.
（発明が解決しようとする問題点）
場上説明した構成によれば、支持金具３を予めアークシ
ールド２に取付けておかなければならないから、ろう付
けの工程が必要となる６周知のように、真空バルブのろ
う付けは、一般には銀を主成分としたろう材、例えばＡ
ｇ ７２ｗｔ％−Ｃｕなどを用い、酸化を防ぐために水
素のような高温でも不活性なガスを充填した不活性雰囲
気炉内でろう付けするので、非常に高価なものになって
しまうばかりでなく、大量に製造する場合には大形の不
活性雰囲気炉が必要となり、製造設備上からもコストを
増大させる欠点があった。(Problems to be Solved by the Invention) According to the configuration explained on the spot, the support fitting 3 must be attached to the arc shield 2 in advance, so a brazing process is required.6 As is well known, Vacuum valves are generally brazed using silver-based brazing materials, such as A
g 72wt%-Cu, etc., and brazing in an inert atmosphere furnace filled with a gas that is inert even at high temperatures, such as hydrogen, to prevent oxidation, which not only makes it extremely expensive, but also When producing in large quantities, a large inert atmosphere furnace is required, which has the drawback of increasing costs in terms of production equipment.
また、アークシールド２は、折曲げた支持金具３によっ
て絶縁容器１に支持されているから、この折曲げ作業は
重要な工程であり、均一でしかも確実に折曲げることが
必要である。このため、極めて慎重を要する作業となり
作業能率を悪足していた。Further, since the arc shield 2 is supported by the insulating container 1 by the bent support fitting 3, this bending operation is an important step, and it is necessary to bend the arc shield 2 uniformly and reliably. For this reason, the work required extreme caution, which resulted in poor work efficiency.
さらに、大形のアークシールドを取付ける場合には、強
度上支持金具３の板厚を増大させる必要があるが、同時
に折曲げに要する力も大きなものとなり、絶縁容器１の
突起部１ａに過大なカが加わり易く、亀裂を発生させる
という品質上や信頼性の点での問題があった。Furthermore, when installing a large arc shield, it is necessary to increase the thickness of the support metal fitting 3 for strength reasons, but at the same time, the force required for bending is also large, and excessive force is applied to the protrusion 1a of the insulating container 1. There was a problem in terms of quality and reliability as it was easy to cause cracks to form.
そこで１本発明の目的は、アークシールドの取付けに際
し、予め支持金具をろう付けすることなく、かつ支持金
具の折曲げ作業も極めて効率的にでき１品質上や信頼性
の点でも優れ低コストになる真空バルブを提供すること
にある。Therefore, (1) an object of the present invention is to allow the arc shield to be installed without brazing the supporting metal fittings in advance and to make the bending work of the supporting metal parts extremely efficient; (1) to be superior in terms of quality and reliability, and to achieve low cost. Our objective is to provide a vacuum valve that will
（問題点を解決するための手段）
本発明は、絶縁円筒の両端開口部をそれぞれ端板で閉止
した真空容器の内部に、接離自在とした一対の電極を配
設し、この電極を取り囲む円筒状のアークシールドを、
絶縁円筒の内周面に設けた突起部を介して取付ける真空
バルブにおいて、絶縁円筒の内径より小さくかつ突起部
の部分の内径より大きくした直径の第１の円筒部と、突
起部の部分の内径より小さい直径の第２の円筒部を段部
を介して一体に形成し、この第２の円筒部に係合片を突
出して設けたアークシールドを、絶縁円筒の内径より小
さくかつ突起部の部分の内径より大きくした直径のつば
部と、アークシールドの第２の円筒部が挿入可能の内径
を有する円筒部を一体に形成し、この円筒部に係合片が
挿入する切欠部を設けた支持金具を介して絶縁円筒に取
付ける構成としたものである。(Means for Solving the Problems) The present invention provides a vacuum vessel in which both end openings of an insulating cylinder are closed with end plates, and a pair of electrodes that can be freely moved toward and away from the vacuum chamber, and a pair of electrodes that surround the electrodes. Cylindrical arc shield,
In a vacuum valve that is attached via a protrusion provided on the inner peripheral surface of an insulating cylinder, the first cylindrical part has a diameter smaller than the inner diameter of the insulating cylinder and larger than the inner diameter of the protrusion part, and the inner diameter of the protrusion part. A second cylindrical portion having a smaller diameter is integrally formed via a stepped portion, and an arc shield having an engaging piece protruding from the second cylindrical portion is provided with an arc shield having a smaller diameter than the inner diameter of the insulating cylinder and a portion of the protruding portion. A support having a collar portion having a diameter larger than the inner diameter of the arc shield, and a cylindrical portion having an inner diameter into which the second cylindrical portion of the arc shield can be inserted, and a notch portion into which the engaging piece is inserted. It is configured to be attached to an insulating cylinder via metal fittings.
（作 用）
アークシールドを絶縁容器の内部に挿入し、段部を絶縁
容器の突起部の一方の面に当接する１次に、このアーク
シールドの第２の円筒部に、係合片と切欠部が円周方向
で一致するように位置を合せて支持金具を挿入する。つ
ば部が絶縁容器の突起部の他方の面に当接したとき、支
持金具を回転して係合片を切欠部に係合させることによ
り、アークシールドを絶縁容器に取付ける。(Function) The arc shield is inserted into the inside of the insulating container, and the step part is brought into contact with one surface of the protruding part of the insulating container. Insert the support fitting so that the parts match in the circumferential direction. When the collar comes into contact with the other surface of the protrusion of the insulating container, the arc shield is attached to the insulating container by rotating the support fitting and engaging the engagement piece with the notch.
（実 施 例）
以下、本発明の一実施例を図面を参照して説明する。な
お、第７図と同一部分には同符号を付し、重複した説明
は省略する。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. Note that the same parts as in FIG. 7 are given the same reference numerals, and redundant explanation will be omitted.
第１図において、真空バルブ１０は、絶縁容器１を含む
真空容器４の内部に、接離自在とした一対の電極（図示
しない）を配設し、この電極を取巻くように円筒状のア
ークシールド１１が絶縁容器１に支持金具１２を介して
取付けられている。In FIG. 1, a vacuum valve 10 includes a pair of electrodes (not shown) that can be freely moved toward and away from the inside of a vacuum container 4 including an insulating container 1, and a cylindrical arc shield surrounding the electrodes. 11 is attached to the insulating container 1 via a support fitting 12.
このアークシールド１１は、直径の大きい円筒部１１ａ
と、この円筒部１１ａの下端に形成され絶縁円筒１の突
起部１ａの一方の面に当接する段部１１ｂと、この段部
１１ｂから下方に伸びる直径の小さい円筒部１１ｃから
構成され、この円筒部１１ｃには１円筒玉数箇所に外側
に突出する係合片１３が設けられている。ここで、アー
クシールド１１は、板厚が１＋ｕａ程度のステンレス鋼
板をプレス等の加工手段により一体に成形するもので、
係合片１３も第２図に示すように一体に設けられている
。This arc shield 11 has a cylindrical portion 11a with a large diameter.
, a stepped portion 11b formed at the lower end of the cylindrical portion 11a and abutting one surface of the projection 1a of the insulating cylinder 1, and a cylindrical portion 11c with a small diameter extending downward from the stepped portion 11b. The portion 11c is provided with engaging pieces 13 that protrude outward at several locations on each cylindrical ball. Here, the arc shield 11 is formed by integrally forming a stainless steel plate with a thickness of about 1+ua by processing means such as pressing,
The engagement piece 13 is also integrally provided as shown in FIG.
また、支持金具１２は、第３図に示すように円板状で絶
縁円筒１の突起部１ａの他方の面に当接するつば部１２
ａと、このつば部１２ａの内径側に一体に形成される円
筒部１２ｂから構成され、つば部１２ａの内径側には逃
げ穴１２ｃが設けられ１円筒部１２ｂには、この逃げ穴
１２ｃにつながって円筒部１２ｂの軸方向に伸びる案内
穴１２ｄと、こ、の案内穴１２ｄと略り字状となるよう
に円筒部１２ｂの円周方向に伸びる係合穴１２ｅが設け
られている。Further, the support fitting 12 has a disc-shaped flange portion 12 which abuts on the other surface of the protrusion portion 1a of the insulating cylinder 1, as shown in FIG.
a, and a cylindrical part 12b integrally formed on the inner diameter side of the collar part 12a, and an escape hole 12c is provided on the inner diameter side of the collar part 12a. A guide hole 12d extends in the axial direction of the cylindrical portion 12b, and an engagement hole 12e extends in the circumferential direction of the cylindrical portion 12b so as to form an abbreviated shape with the guide hole 12d.
しかして、上記したアークシールド１１と支持金具１２
は、次の関係を持つように形成する。すなわち、第１図
において、アークシールド１１の円筒部１１ａの外径は
、絶縁容器１の内径より若干小さくして段部１１ｂが突
起部１ａの一方（同図で上側）の面に当接するようにし
、円筒部１１ｃの外径は、絶縁容器１の突起部１ａの内
径より小さくしてアークシールド１１を絶縁円筒１の一
方（同図の上側）の側から挿入できるようにする。支持
金具１２のつば部１２８の外径は、絶縁容器１゛の内径
より若干小さくして突起部１ａの他方（同図の下側）の
面に当接するようにする。また、アークシールド１１の
円筒部１１ｃに設ける係合片１３の内側面と円筒部１１
ｃの外側面との寸法Ｈ（第２ｇ４に示す）は、支持金具
１２の円筒部１１ｃの肉厚よりも若干大きくしておく。Therefore, the above-mentioned arc shield 11 and support fittings 12
is formed so that it has the following relationship. That is, in FIG. 1, the outer diameter of the cylindrical portion 11a of the arc shield 11 is made slightly smaller than the inner diameter of the insulating container 1 so that the stepped portion 11b comes into contact with one (upper side in the figure) of the protruding portion 1a. The outer diameter of the cylindrical portion 11c is made smaller than the inner diameter of the projection 1a of the insulating container 1 so that the arc shield 11 can be inserted from one side (the upper side in the figure) of the insulating cylinder 1. The outer diameter of the collar 128 of the support fitting 12 is made slightly smaller than the inner diameter of the insulating container 1'' so that it comes into contact with the other (lower side in the figure) surface of the projection 1a. Further, the inner surface of the engagement piece 13 provided on the cylindrical portion 11c of the arc shield 11 and the cylindrical portion 11
The dimension H between c and the outer surface (shown as second g4) is set to be slightly larger than the wall thickness of the cylindrical portion 11c of the support fitting 12.
一方、支持金具１２の円筒部１２ｂの内径は、アークシ
ールド１１の円筒部１１ｃの外径より若干大きくし、支
持金具１２の円筒部１２ｂにアークシールド１１の円筒
部１１ｃが容易に挿入できるようにし、この挿入時にア
ークシールド１１の係合片１３が支持金具１２に当らな
いように、逃げ穴１２ｃと案内穴１２ｄがそれぞれ設け
られる。また、つば部１２ａが絶縁容器１の突起部１ａ
に当接したとき、支持金具１２を第３図において反時計
方向に回転させ係合片１３をアークシールド１１に係合
させるので、係合片１３が係合できるように係合穴１２
ｅが設けられる。On the other hand, the inner diameter of the cylindrical portion 12b of the support fitting 12 is made slightly larger than the outer diameter of the cylindrical portion 11c of the arc shield 11, so that the cylindrical portion 11c of the arc shield 11 can be easily inserted into the cylindrical portion 12b of the support fitting 12. In order to prevent the engagement piece 13 of the arc shield 11 from hitting the support fitting 12 during this insertion, an escape hole 12c and a guide hole 12d are provided, respectively. Further, the brim portion 12a is the protrusion portion 1a of the insulating container 1.
3, the support fitting 12 is rotated counterclockwise in FIG. 3 and the engagement piece 13 is engaged with the arc shield 11.
e is provided.
次に、上記したアークシールド１１を絶縁容器１に取付
ける方法を第４図を参照して説明する。Next, a method of attaching the above-mentioned arc shield 11 to the insulating container 1 will be explained with reference to FIG. 4.
まず、同図（ａ）に示すように絶縁容器１の突起部１８
の一方の面にアークシールド１１の段部１１ｂを当接さ
せる。この後、同図（ｂ）のように支持金具１２をつば
部１２ａから矢印で示す方向にアークシールド１１の円
筒部ｔｉｃへ挿入する。このとき、支持金具１２の逃げ
穴１２ｃと円筒部１１ｃの係合片１３が１円周上で一致
するように両方を合せるのはいうまでもない。この挿入
で同図（ｃ）に示すように支持金具１２のつば部１２８
が、絶縁容器１の突起部１ａの他方の面に当接した後、
支持金具１２を同図（Ｑ）において反時計方向に回転さ
せ、アークシールド１！の係合片１３が支持金具１２の
係合片１２ｅに係合させる。First, as shown in FIG.
The stepped portion 11b of the arc shield 11 is brought into contact with one surface of the arc shield 11. Thereafter, the support fitting 12 is inserted from the collar portion 12a into the cylindrical portion tic of the arc shield 11 in the direction shown by the arrow, as shown in FIG. 2(b). At this time, it goes without saying that the escape hole 12c of the support fitting 12 and the engagement piece 13 of the cylindrical portion 11c are aligned so that they are aligned on one circumference. With this insertion, the flange 128 of the support fitting 12 is
After contacting the other surface of the protrusion 1a of the insulating container 1,
Rotate the support fitting 12 counterclockwise in the same figure (Q), and the arc shield 1! The engaging piece 13 engages with the engaging piece 12e of the support fitting 12.
以上によりアークシールド１１は、自身の段部１１ｂで
絶縁容器１の突起部１ａの一方の面に当接し、かつ係合
片１３を介して係合する支持金具１２が突起部１ａの他
方の面に当接し、第１図に示すように取付けることがで
きる。As described above, the arc shield 11 has its stepped portion 11b in contact with one surface of the protruding portion 1a of the insulating container 1, and the supporting metal fitting 12, which is engaged via the engagement piece 13, is in contact with the other surface of the protruding portion 1a. It can be attached as shown in Figure 1.
なお、アークシールド１１の取付後、支持金具１２が真
空バルブの振動等で取付時と逆方向に回転すると、アー
クシールド１１が絶縁容ｉ１１から外れるので、これを
防ぐために第５図に示すように支持金具１２の案内穴１
２ｄの端部１２ｆを外側方向に僅かに折曲げておく。After the arc shield 11 is installed, if the support fitting 12 rotates in the opposite direction from when it was installed due to vibration of the vacuum valve, etc., the arc shield 11 will come off from the insulation capacity i11. To prevent this, as shown in FIG. Guide hole 1 of support fitting 12
The end portion 12f of 2d is slightly bent outward.
上記した実施例においては、支持金具１２に設ける係合
穴１２ａをつば部１２ａに平行状としたが、第６図に示
すような形状としてもよい、すなわち、同図に示す支持
金具１４は、上記した支持金具１２のつば部１２ａと略
同様のつば部１０００円筒部１２ｂと略同様の円筒部１
４ｂを有し、つば部１４ａには逃げ穴１２ｃと略同様の
逃げ穴（Ｖ！４示しない）１円筒部１４ｂには案内穴１
２ｄと略同様の案内穴１４ｄを設け、さらにこの案内穴
１４ｄにつながる係合穴１２ｇのつば部１４ａ側の縁を
傾斜状とし、係合穴１４ｇの幅が円周方向に沿って次第
に狭くなるようにしたことに特徴がある。このように構
成すると、支持金具１４を矢印方向に回転させたときに
、つば部１４ａが絶縁容器の突起部に当接した位置で回
転が止まるため、突起部の厚さの不均一を吸収でき１強
固を取付けをすることができる。In the embodiment described above, the engagement hole 12a provided in the support fitting 12 is parallel to the flange portion 12a, but it may be shaped as shown in FIG. 6. In other words, the support fitting 14 shown in the figure A collar portion 1000 that is substantially similar to the collar portion 12a of the support fitting 12 described above, and a cylindrical portion 1 that is substantially similar to the cylindrical portion 12b.
4b, and the flange portion 14a has an escape hole (V!4 not shown) that is substantially similar to the escape hole 12c.The cylindrical portion 14b has a guide hole 1.
A guide hole 14d substantially similar to guide hole 2d is provided, and the edge of the engagement hole 12g connected to the guide hole 14d on the side of the collar 14a is sloped, so that the width of the engagement hole 14g becomes gradually narrower along the circumferential direction. It is characterized by the fact that it is made as follows. With this configuration, when the support fitting 14 is rotated in the direction of the arrow, the rotation stops at the position where the collar 14a comes into contact with the protrusion of the insulating container, making it possible to absorb uneven thickness of the protrusion. 1. Can be installed firmly.
本発明は、以上のように構成されているから。 The present invention is configured as described above.
アークシールドの取付けが単に支持金具を挿入し回転さ
せ、支持金具の一端を僅かに折曲げるだけでよいため、
短時間で作業を完了することができて作業能率を向上し
、絶縁容器には過大な力を加えることがないから破損の
原因もなく品質と信頼性を向上することができる。また
、アークシールドに予め係合片をろう付は等で取付けて
おく必要がないので、コストを低減でき、さらに、高温
不活性雰囲気炉の処理能力に影響されることなく。The arc shield can be installed by simply inserting the support bracket, rotating it, and slightly bending one end of the support bracket.
Work can be completed in a short time, improving work efficiency, and since excessive force is not applied to the insulating container, there is no cause of damage and quality and reliability can be improved. Furthermore, since there is no need to attach the engaging piece to the arc shield in advance by brazing or the like, costs can be reduced and the processing capacity of the high-temperature inert atmosphere furnace is not affected.
大量生産に適し設備面でも有利となる真空バルブを提供
することができる。It is possible to provide a vacuum valve that is suitable for mass production and is advantageous in terms of equipment.
第１図は本発明の一実施例の要部を示す断面図、第２図
は本発明の一実施例のアークシールドの一部を示す正面
図、第３図は本発明の一実施例の支持金具を示す斜視図
、第４図（ａ） （ｂ） （ｃ）は本発明の一実施例の
アークシールドの取付は方法を示す説明図、第５図は本
発明の一実施例のアークシールドを支持金具で取付けた
状態を示す説明図、第６図は本発明の他の実施例の支持
金具を示す正面図、第７図は従来の真空バルブのアーク
シールドを取付けた状態を示す断面図である。
ｌ・・・絶縁容器、 ｉａ・・・突起部１１・・
・アークシールド、 ｌｌａ、ｌｌｃ・・・円筒部１１
ｂ・・・段部、 １２・・・支持金具１２ａ
・・・つば部、 １２ｂ・・・円筒部１２ｄ・
・・案内穴、 １２ｅ・・・係合穴１３・・・
係合片
（８７３３）代理人 弁理士 猪 股 祥 晃（ほか１
名）
第１図
第２図
２ｂ
第３図
（ａン
（ｂ）
第４図
（Ｃ）
第４図
２ｆ
第５図
４ｅ
第６図
第７図FIG. 1 is a cross-sectional view showing a main part of an embodiment of the present invention, FIG. 2 is a front view showing a part of an arc shield of an embodiment of the present invention, and FIG. 3 is a cross-sectional view of an embodiment of the present invention. 4(a), 4(b), and 4(c) are explanatory diagrams showing a method for attaching an arc shield according to an embodiment of the present invention, and FIG. 5 is a perspective view showing an arc shield according to an embodiment of the present invention. An explanatory diagram showing a state in which the shield is attached with a support fitting, FIG. 6 is a front view showing a support fitting of another embodiment of the present invention, and FIG. 7 is a cross section showing a state in which the arc shield of a conventional vacuum valve is attached. It is a diagram. l...Insulating container, ia...Protrusion 11...
・Arc shield, lla, llc...cylindrical part 11
b...Step part, 12...Support fitting 12a
...Brim part, 12b...Cylindrical part 12d.
...Guide hole, 12e...Engagement hole 13...
Engagement piece (8733) Agent: Yoshiaki Inomata, patent attorney (and 1 others)
Figure 1 Figure 2 2b Figure 3 (a) Figure 4 (C) Figure 4 2f Figure 5 4e Figure 6 Figure 7
Claims (2)
真空容器の内部に、接離自在とした一対の電極を配設し
、この電極を取り囲む円筒状のアークシールドを、前記
絶縁円筒の内周面に設けた突起部を介して取付ける真空
バルブにおいて、前記絶縁円筒の内径より小さくかつ前
記突起部の部分の内径より大きくした直径の第１の円筒
部と、前記突起部の部分の内径より小さい直径の第２の
円筒部を段部を介して一体に形成し、この第２の円筒部
に係合片を突出して設けた前記アークシールドを、前記
絶縁円筒の内径より小さくかつ前記突起部の部分の内径
より大きくした直径のつば部と、前記アークシールドの
第２の円筒部を挿入可能の内径を有する円筒部を一体に
形成し、この円筒部に前記係合片が挿入する切欠部を設
けた支持金具を介して前記絶縁円筒に取付けたことを特
徴とする真空バルブ。(1) A pair of electrodes that can be freely moved into and out of contact with each other is arranged inside a vacuum container in which both openings of an insulating cylinder are closed with end plates, and a cylindrical arc shield surrounding the electrodes is placed inside the vacuum container, and the openings at both ends of the insulating cylinder are closed with end plates. In a vacuum valve that is attached via a protrusion provided on an inner circumferential surface, the first cylindrical part has a diameter smaller than the inner diameter of the insulating cylinder and larger than the inner diameter of the protrusion part, and the inner diameter of the protrusion part. A second cylindrical portion having a smaller diameter is integrally formed via a stepped portion, and the arc shield is provided with an engaging piece projecting from the second cylindrical portion. a cylindrical portion having an inner diameter that allows insertion of the second cylindrical portion of the arc shield; and a notch into which the engaging piece is inserted. A vacuum valve, characterized in that the vacuum valve is attached to the insulating cylinder via a support fitting provided with a portion.
穴、この逃げ穴に連らなり軸方向に沿って伸びる案内穴
およびこの案内穴に略直交するように円周方向に伸びる
係合穴で構成した特許請求の範囲第１項記載の真空バル
ブ。(2) The notch provided in the support fitting is connected to an escape hole provided in the brim, a guide hole that connects to the escape hole and extends along the axial direction, and a groove that extends in the circumferential direction approximately perpendicular to the guide hole. The vacuum valve according to claim 1, which is configured with a matching hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9524687A JPS63261639A (en) | 1987-04-20 | 1987-04-20 | Vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9524687A JPS63261639A (en) | 1987-04-20 | 1987-04-20 | Vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63261639A true JPS63261639A (en) | 1988-10-28 |
Family
ID=14132397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9524687A Pending JPS63261639A (en) | 1987-04-20 | 1987-04-20 | Vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63261639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2960921B1 (en) | 2014-06-27 | 2017-04-12 | Schneider Electric Industries SAS | Self-centring assembly for a vacuum tube and vacuum tube |
| EP3276650A1 (en) * | 2016-07-27 | 2018-01-31 | ABB Schweiz AG | Vacuum interrupter with a ceramic body and at least one shielding element, and method for producing the same |
-
1987
- 1987-04-20 JP JP9524687A patent/JPS63261639A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2960921B1 (en) | 2014-06-27 | 2017-04-12 | Schneider Electric Industries SAS | Self-centring assembly for a vacuum tube and vacuum tube |
| EP3276650A1 (en) * | 2016-07-27 | 2018-01-31 | ABB Schweiz AG | Vacuum interrupter with a ceramic body and at least one shielding element, and method for producing the same |
| WO2018019952A1 (en) * | 2016-07-27 | 2018-02-01 | Abb Schweiz Ag | Vacuum interrupter with a ceramic body and at least one shielding element, and method for producing the same |
| CN109478480A (en) * | 2016-07-27 | 2019-03-15 | Abb瑞士股份有限公司 | Vacuum extinction device and its manufacturing method with ceramic body He at least one shielding element |
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