JPS6230265Y2 - - Google Patents
Info
- Publication number
- JPS6230265Y2 JPS6230265Y2 JP6508680U JP6508680U JPS6230265Y2 JP S6230265 Y2 JPS6230265 Y2 JP S6230265Y2 JP 6508680 U JP6508680 U JP 6508680U JP 6508680 U JP6508680 U JP 6508680U JP S6230265 Y2 JPS6230265 Y2 JP S6230265Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- vacuum
- vacuum container
- vacuum switch
- metal
- 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
Links
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- 229910017709 Ni Co Inorganic materials 0.000 description 2
- 229910003267 Ni-Co Inorganic materials 0.000 description 2
- 229910003262 Ni‐Co Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Description
【考案の詳細な説明】
本考案は真空開閉器に関し、さらに詳細には、
有底円筒状の金属タンクをセラミツク等の絶縁円
板により閉塞して真空容器を構成してなる真空開
閉器に関する。[Detailed description of the invention] The present invention relates to a vacuum switch, and more specifically,
The present invention relates to a vacuum switch which constitutes a vacuum container by closing a bottomed cylindrical metal tank with an insulating disc made of ceramic or the like.
一般に、真空開閉器は、ガラスあるいはセラミ
ツクからなる絶縁筒の両端を金属からなる端板に
より閉塞して真空容器を構成し、この真空容器内
に接点を内端部に備えた１対の電極棒を相対的に
接近離反自在に導入して構成されている。しかし
て、真空開閉器によるしや断容量の増大が企図さ
れる昨今、接点径の大径化が必然的に図られ、い
きおい絶縁筒もその大径化を余儀なくされている
現状である。しかるに、ガラスあるいはセラミツ
クからなる大径の絶縁筒を、その内外径等の寸法
精度を所定範囲内に維持するのは極めて困難であ
るとともに真空開閉器を非常に高価なものとする
おそれがある。 In general, a vacuum switch consists of a vacuum container made by closing both ends of an insulating tube made of glass or ceramic with end plates made of metal, and a pair of electrode rods with contacts at the inner ends inside the vacuum container. It is constructed by introducing relatively freely approaching and separating. However, in recent years, as it is planned to increase the insulation capacity of vacuum switches, the diameter of the contact point has inevitably been increased, and the diameter of the insulating tube has also been forced to increase. However, it is extremely difficult to maintain the dimensional accuracy of the inside and outside diameters of a large-diameter insulating cylinder made of glass or ceramic within a predetermined range, and the vacuum switch may become extremely expensive.
上述した問題に対処すべく、有底円筒状の金属
タンクをその開口縁に気密ろう付けしたセラミツ
ク等の絶縁円板により閉塞して真空容器とし、こ
の真空容器内に電極棒を介して導入した一対の接
点を接離自在に設けてなる真空開閉器が知られて
いる。しかし、このような真空開閉器は、ろう付
けにより金属タンクと絶縁円板との歪を小さくす
るために、一般に金属タンクの厚さが薄く設けら
れている。従つて、金属タンクは、その外径が大
きくなつた場合には、しや断、投入（開、閉）時
の操作力により変形するおそれがあつた。 In order to deal with the above-mentioned problems, a cylindrical metal tank with a bottom was sealed with an insulating disk made of ceramic or the like airtightly brazed to the opening edge to form a vacuum container, and the electrode was introduced into the vacuum container via an electrode rod. 2. Description of the Related Art A vacuum switch having a pair of contacts that can be freely connected and separated is known. However, in such a vacuum switch, the metal tank is generally provided with a thin thickness in order to reduce distortion between the metal tank and the insulating disk by brazing. Therefore, when the outer diameter of the metal tank becomes large, there is a risk that the metal tank may be deformed by the operating force at the time of shearing or charging (opening, closing).
本考案は、上述した問題に鑑みてなされたもの
で、金属タンクの形状を改良することにより、そ
の機械的強度を高めた真空開閉器の提供を目的と
する。以下、図面を用いてこの考案の実施例を詳
細に説明する。 The present invention has been made in view of the above-mentioned problems, and aims to provide a vacuum switch whose mechanical strength is increased by improving the shape of the metal tank. Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.
第１図は本考案に係る真空開閉器の半截断面図
で、この真空開閉器は、金属からなる有底円筒状
のタンク１の開口部をセラミツクからる絶縁円板
２により気密に閉塞して真空容器３とし、この真
空容器３内に対をなす固定、可動接点４，５を接
離自在に配設して構成されている。すなわち、絶
縁円板２は、セラミツクを成形、焼成して円板状
に形成され、その中心部に円形の孔６が設けられ
るとともに、一端面（第１図において上面）の外
周縁に段部７が設けられている。また、絶縁円板
２の一端面における孔６の周辺及び段部７には、
図示は省略するが、セラミツクとほぼ同等の熱膨
張係数のMO−Mn−Ti合金あるいはMn−Ti合金
をメタライズしたメタライズ層がそれぞれ形成さ
れている。そして、真空容器３はメタライズ層を
形成した段部７に、セラミツクとほぼ同等の熱膨
張係数のFe−Ni−Co合金あるいはFe−Ni合金か
らなる前記有底円筒状のタンク１を、その開口部
付近を外側方へ屈曲せしめて形成した段付張出し
部８を介して嵌合するとともに気密ろう付けして
構成されている。 FIG. 1 is a half-sectional view of a vacuum switch according to the present invention, in which the opening of a bottomed cylindrical tank 1 made of metal is hermetically closed with an insulating disc 2 made of ceramic. A vacuum container 3 is provided, and a pair of fixed and movable contacts 4 and 5 are disposed within the vacuum container 3 so as to be able to come into contact with and separate from the contact points. That is, the insulating disk 2 is formed into a disk shape by molding and firing ceramic, and has a circular hole 6 in its center and a stepped portion on the outer periphery of one end surface (the top surface in FIG. 1). 7 is provided. In addition, around the hole 6 and the stepped portion 7 on one end surface of the insulating disk 2,
Although not shown, a metallized layer is formed by metallizing an MO-Mn-Ti alloy or a Mn-Ti alloy having a coefficient of thermal expansion approximately equal to that of ceramic. The vacuum container 3 has the bottomed cylindrical tank 1 made of Fe-Ni-Co alloy or Fe-Ni alloy having a coefficient of thermal expansion almost the same as that of ceramics on the stepped portion 7 on which the metallized layer is formed. They are fitted together via a stepped overhanging part 8 formed by bending the vicinity of the part outward, and are brazed in an airtight manner.
前記真空容器３内には、タンク１と同様にFe
−Ni−Co合金あるいはFe−Ni合金からなる有底
円筒状のシールド９が、その開口部をタンク１の
底部１ａと対向せしめて収納されているととも
に、その底部中央を切欠き軸方向外側へ筒状に延
伸して形成した筒部１０を、絶縁円板２の孔６に
嵌合することによりタンク１に対して同心状に設
けられ、かつ、その底部の一部と、孔６の周辺の
メタライズ層とを気密ろう付けして絶縁円板２に
固着されている。また、真空容器３内には、ステ
ンレス鋼あるいはインコネル等からなる有底のベ
ローズ１１が、その底部をタンク１の底部１ａと
対向せしめて収納されるとともに、その開口端の
内径側を軸方向外側へ筒状に延伸して形成した筒
部１２を、シールド９の筒部１０に嵌挿すること
によりシールド９に対して同心状に設けられ、か
つ、その筒部１２とシールド９の筒部１０とを気
密ろう付けしてシールド９に固着されている。ベ
ローズ１１には、銅あるいは銅合金からなる可動
電極棒１３が真空容器３の軸心部に位置して挿入
されており、その内端部は、ベローズ１１の底部
中央を貫通して真空容器３内に突出されるととも
にベローズ１１に気密ろう付けされている。そし
て、可動電極棒１３の内端部には、前記可動接点
５がろう付け等により適宜に取付けられている。 Inside the vacuum container 3, like the tank 1, there is Fe.
- A cylindrical shield 9 with a bottom made of Ni-Co alloy or Fe-Ni alloy is housed with its opening facing the bottom 1a of the tank 1, and the center of the bottom is cut out to extend outward in the axial direction. The cylindrical part 10, which is formed by extending into a cylindrical shape, is fitted into the hole 6 of the insulating disk 2, so that it is provided concentrically with respect to the tank 1, and a part of the bottom part and the periphery of the hole 6 are provided. It is fixed to the insulating disk 2 by airtight brazing with the metallized layer. Further, a bottomed bellows 11 made of stainless steel, Inconel, etc. is housed in the vacuum container 3 with its bottom facing the bottom 1a of the tank 1, and the inner diameter side of its open end is axially outward. A cylindrical portion 12 formed by extending into a cylindrical shape is fitted into the cylindrical portion 10 of the shield 9 so that the cylindrical portion 12 is provided concentrically with respect to the shield 9, and the cylindrical portion 12 and the cylindrical portion 10 of the shield 9 are connected to each other. and are fixed to the shield 9 by airtight brazing. A movable electrode rod 13 made of copper or a copper alloy is inserted into the bellows 11 so as to be located at the axial center of the vacuum vessel 3, and its inner end passes through the center of the bottom of the bellows 11 and is inserted into the vacuum vessel 3. It protrudes inward and is hermetically brazed to the bellows 11. The movable contact 5 is appropriately attached to the inner end of the movable electrode rod 13 by brazing or the like.
前記タンク１の底部中央には、円形の孔１４が
穿設されており、この孔１４には、第１図におい
て下方へ突出した円形の嵌合部１５ａを有する円
板状の集電用補助金具１５が、その嵌合部１５ａ
を介して上方から嵌合されるとともに気密ろう付
けされている。集電用補助金具１５は、集電効率
を高めるべく電源あるいは負荷と接続される端子
を接触させて取付けるためのもので、銅あるいは
銅合金からなり、その中心部に設けた孔１６に
は、前記可動接点５が接離される固定接点４を内
端部に取付けた同様の金属からなる固定電極棒１
７が嵌挿されている。そして、固定電極棒１７
は、そのフランジ部１７ａを介して第１図におい
て下方への移動を規制されつつ補助金具１５に気
密ろう付けされている。また、タンク１における
底部１ａと筒部１ｂとの接合部分である底部１ａ
の外周縁には、第２図、第３図に示すように、プ
レス加工等によりこの部分を内側に凹設した補強
部１ｃが形成されている。補強部１ｃは、タンク
１の機械的強度を高めるためのもので、円周方向
へ適宜に離隔して複数個設けられており、その底
部は、タンク１の底部１ａに対してほぼ45度の傾
斜をなしているものである。 A circular hole 14 is bored in the center of the bottom of the tank 1, and a disk-shaped current collection auxiliary member having a circular fitting portion 15a projecting downward in FIG. 1 is inserted into the hole 14. The fitting 15 is connected to its fitting portion 15a.
They are fitted from above through the rim and are airtightly brazed. The current collection auxiliary metal fitting 15 is used to attach a terminal connected to a power source or a load in contact with each other in order to improve current collection efficiency, and is made of copper or a copper alloy. A fixed electrode rod 1 made of a similar metal and having a fixed contact 4 attached to its inner end with which the movable contact 5 is connected and separated.
7 is inserted. And fixed electrode rod 17
is hermetically brazed to the auxiliary fitting 15 through its flange portion 17a in FIG. 1, with its downward movement being restricted. In addition, a bottom portion 1a that is a joint portion between the bottom portion 1a and the cylindrical portion 1b in the tank 1
As shown in FIGS. 2 and 3, a reinforcing portion 1c is formed on the outer peripheral edge of the reinforcing portion 1c by recessing this portion inward by press working or the like. The reinforcing portions 1c are provided to increase the mechanical strength of the tank 1, and are provided in plural at appropriate intervals in the circumferential direction, and their bottom portions are at an angle of approximately 45 degrees to the bottom portion 1a of the tank 1. It is sloped.
以上の如く本考案は、金属からなる有底円筒状
のタンクの開口部をセラミツクからなる絶縁円板
により閉塞して真空容器とし、この真空容器内に
一対の接点を接離自在に設けてなる真空開閉器に
おいて、タンクの底部外周縁にこの部分を内側に
凹設して複数の補強部を設けたものであるから、
真空開閉器を、そのタンクの肉厚を大きくするこ
となく、投入、しや断時における衝撃力に充分耐
え得る機械的強度を備えたものとすることができ
る等の効果を奏する。 As described above, the present invention has a vacuum vessel by closing the opening of a bottomed cylindrical tank made of metal with an insulating disc made of ceramic, and a pair of contacts are provided inside the vacuum vessel so as to be able to freely connect and separate. In a vacuum switch, a plurality of reinforcing parts are provided on the outer periphery of the bottom of the tank by recessing this part inward.
Effects such as the ability to provide a vacuum switch with sufficient mechanical strength to withstand impact force during closing and closing without increasing the wall thickness of the tank are achieved.
第１図は本考案に係る真空開閉器の半截断面図
で、第２図はその平面図、第３図は本考案に係る
真空開閉器の斜視図である。
１……タンク、１ａ……底部、１ｃ……補強
部、２……絶縁円板、３……真空容器、４，５…
…接点。
FIG. 1 is a half-cut sectional view of a vacuum switch according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a perspective view of the vacuum switch according to the present invention. DESCRIPTION OF SYMBOLS 1...tank, 1a...bottom, 1c...reinforcement part, 2...insulating disk, 3...vacuum container, 4, 5...
…contact.
Claims (1)
ラミツクからなる絶縁円板により閉塞して真空容
器とし、この真空容器内に一対の接点を接離自在
に設けてなる真空開閉器において、タンクの底部
外周縁にこの部分を内側に凹設して複数の補強部
を設けたことを特徴とする真空開閉器。 In a vacuum switch, the opening of a bottomed cylindrical tank made of metal is closed with an insulating disc made of ceramic to form a vacuum container, and a pair of contacts are provided in the vacuum container so that they can be freely connected and separated. A vacuum switch characterized in that a plurality of reinforcing parts are provided on the outer periphery of the bottom by recessing this part inward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6508680U JPS6230265Y2 (en) | 1980-05-13 | 1980-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6508680U JPS6230265Y2 (en) | 1980-05-13 | 1980-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56166630U JPS56166630U (en) | 1981-12-10 |
| JPS6230265Y2 true JPS6230265Y2 (en) | 1987-08-04 |
Family
ID=29659249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6508680U Expired JPS6230265Y2 (en) | 1980-05-13 | 1980-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230265Y2 (en) |
-
1980
- 1980-05-13 JP JP6508680U patent/JPS6230265Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56166630U (en) | 1981-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6245654B2 (en) | ||
| JPS6213778B2 (en) | ||
| JPS633067Y2 (en) | ||
| JPH0555965B2 (en) | ||
| JPS6230265Y2 (en) | ||
| US4630361A (en) | Process for preparing a vacuum switch tube | |
| CA1319729C (en) | Vacuum interrupter with ceramic enclosure | |
| US4408107A (en) | Vacuum interrupter | |
| KR860000796B1 (en) | Vacuum breaker | |
| JPS6230266Y2 (en) | ||
| EP0043258B1 (en) | A vacuum interrupter and methods of manufacturing the same | |
| JPS6230267Y2 (en) | ||
| EP0040933A2 (en) | Vacuum-housed circuit interrupter | |
| JPS638041Y2 (en) | ||
| US4417110A (en) | Vacuum interrupter | |
| JPS6320035Y2 (en) | ||
| JPS6312520Y2 (en) | ||
| JPH0238355Y2 (en) | ||
| JPS6245402Y2 (en) | ||
| JPS6215979B2 (en) | ||
| JPH0238382Y2 (en) | ||
| JPS58900Y2 (en) | vacuum switch tube | |
| JPS5847625Y2 (en) | Vacuum cutter | |
| JPS6318114Y2 (en) | ||
| JPH0112356Y2 (en) |