JPH08273500A - Vacuum bulb - Google Patents
Vacuum bulbInfo
- Publication number
- JPH08273500A JPH08273500A JP7075892A JP7589295A JPH08273500A JP H08273500 A JPH08273500 A JP H08273500A JP 7075892 A JP7075892 A JP 7075892A JP 7589295 A JP7589295 A JP 7589295A JP H08273500 A JPH08273500 A JP H08273500A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum valve
- vacuum
- peripheral surface
- electrode
- ring
- 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
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、真空中でろう付けに
より接合して真空密閉する真空バルブに係り、特に電極
と電極棒との間あるいは電極棒の分割部間の接合部の構
造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum valve which is joined by brazing in a vacuum and vacuum-sealed, and more particularly to a structure of a joint between an electrode and an electrode rod or between divided portions of the electrode rod. Is.
【０００２】[0002]
【従来の技術】真空バルブは、円筒形状の絶縁容器とこ
の両端を金属製の端板で閉塞した真空容器内に、互いに
接離し得る一対の電極を収納して電流の開閉を行うもの
で、真空容器を密閉する方法を大別すると下記のように
なる。 （１）真空バルブに設けた排気管を利用し、真空ポンプ
により内部のガスを排気し、所定の高真空度に達した後
に、排気管を圧接封じ切りして真空密閉する方法。 （２）高真空雰囲気内において、絶縁容器とこの両端に
設けた端板とをろう付けで接合することにより真空密閉
する方法。2. Description of the Related Art A vacuum valve opens and closes a current by accommodating a pair of electrodes which can be brought into contact with and separated from each other in a cylindrical insulating container and a vacuum container whose both ends are closed by metal end plates. The method for sealing the vacuum container is roughly classified as follows. (1) A method in which an exhaust pipe provided in a vacuum valve is used to exhaust the gas inside by a vacuum pump, and after a predetermined high degree of vacuum is reached, the exhaust pipe is pressure-sealed and vacuum-sealed. (2) A method of vacuum-sealing by brazing an insulating container and end plates provided at both ends thereof in a high vacuum atmosphere.
【０００３】しかしながら、排気管を利用して内部ガス
を排気し真空密閉する（１）の方法は、排気管の封じ切
り部が外部に突出しているため取り扱い上邪魔になり、
又、絶縁容器と金属製の端板とを真空雰囲気中において
ろう付け接合して真空密閉する（２）の方法よりも、作
業工程数が多いという欠点があるため、一般的には
（２）の方法が採用され、部分的な組立を真空中あるい
は水素ガス雰囲気中でろう付け接合した後、（２）の方
法で真空密閉を行うという方法で製作されている。However, the method of (1) in which the internal gas is exhausted by using the exhaust pipe and is vacuum-sealed is a hindrance in handling because the sealing portion of the exhaust pipe projects to the outside.
Further, there is a drawback that the number of working steps is larger than that of the method (2) in which the insulating container and the end plate made of metal are brazed and joined in a vacuum atmosphere and vacuum-sealed. The method of (2) is adopted, and the partial assembly is brazed and bonded in a vacuum or hydrogen gas atmosphere, and then vacuum sealed by the method (2).
【０００４】図８は例えば実開昭５７−３８５５０号公
報に示されたこの種の従来の真空バルブの概略構成を示
す断面図、図９は図８における第１の電極および固定電
極の接合部の詳細を示し、（Ａ）は正面図、（Ｂ）は側
面図である。図において、１は円筒形状でアルミナ磁器
製の絶縁容器、２はこの絶縁容器１の上部を気密に覆う
上部端板、３は絶縁容器１の下部を覆い中央部に穴３ａ
を有する下部端板である。FIG. 8 is a sectional view showing a schematic structure of a conventional vacuum valve of this type shown in, for example, Japanese Utility Model Laid-Open No. 57-38550, and FIG. 9 is a joint portion of a first electrode and a fixed electrode in FIG. 2A is a front view and FIG. 3B is a side view. In the figure, 1 is a cylindrical insulating container made of alumina porcelain, 2 is an upper end plate that hermetically covers the upper part of the insulating container 1, 3 is a lower part of the insulating container 1, and a hole 3a is formed in the central part.
Is a lower end plate having.
【０００５】４は上部端板２を気密に貫通して配設され
る固定側電極棒、５はこの固定側電極棒４の先端に連結
された固定側電極、６は下部端板３の穴３ａを貫通し、
下部端板３の上部に一端が気密固着されたベローズ７の
他端に気密固着され、ベローズ７の撓みにより軸方向に
移動可能な可動側電極棒、８はこの可動側電極棒６の先
端に連結され、固定側電極５と接離可能に配設された可
動側電極、９はこれら固定側電極５および可動側電極８
の周囲を取り巻くように配設されたアークシールドであ
る。Reference numeral 4 denotes a fixed-side electrode rod which is arranged to penetrate the upper end plate 2 in an airtight manner, 5 denotes a fixed-side electrode connected to the tip of the fixed-side electrode rod 4, and 6 denotes a hole in the lower end plate 3. Penetrate 3a,
One end of the bellows 7, which is airtightly attached to the upper end of the lower end plate 3, is airtightly attached to the other end of the bellows 7 and is movable in the axial direction by bending of the bellows 7. The movable side electrode 9 is connected and is disposed so as to be able to come into contact with and separate from the fixed side electrode 5, and 9 is the fixed side electrode 5 and the movable side electrode 8.
It is an arc shield arranged so as to surround the periphery of.
【０００６】上記のように構成された従来の真空バルブ
は、まず、真空中あるいは水素ガス雰囲気中において、
上部端板２、固定側電極棒４および固定側電極５を、
又、下部端板３、ベローズ７、可動側電極棒６および可
動側電極８をそれぞれろう付けにより接合して部分組立
をしておき、最後に、高真空中において、上部端板２お
よび下部端板３とを絶縁容器１の両端にろう付け接合す
ることにより、真空密閉して製作されている。又、固定
側電極棒４と固定側電極５、可動側電極棒６と可動側電
極８の接合部は、部分組立時あるいは最終組立時の両電
極５、８の脱落、傾きおよび位置ずれを防ぐために、例
えば図９に示すようにそれぞれの接合部にテーパ状の凹
凸を設け、お互いをはめ合わせてろう付け接合されてい
る。The conventional vacuum valve having the above-described structure is first constructed in a vacuum or in a hydrogen gas atmosphere.
The upper end plate 2, the fixed side electrode rod 4 and the fixed side electrode 5,
Further, the lower end plate 3, the bellows 7, the movable side electrode rod 6 and the movable side electrode 8 are respectively joined by brazing to be partially assembled, and finally, in a high vacuum, the upper end plate 2 and the lower end plate are It is manufactured by vacuum-sealing the plate 3 by brazing to both ends of the insulating container 1. Further, the fixed side electrode rod 4 and the fixed side electrode 5 and the movable side electrode rod 6 and the movable side electrode 8 are joined together at a joint portion so as to prevent the electrodes 5 and 8 from falling off, tilting and shifting during partial assembly or final assembly. For this purpose, for example, as shown in FIG. 9, tapered concavities and convexities are provided in the respective joints, and the concavities and convexities are fitted together and brazed and joined.
【０００７】[0007]
【発明が解決しようとする課題】従来の真空バルブは以
上のように構成されているので、部分組立工程で行うろ
う付け温度と、最終組立工程で行うろう付け温度とが同
じような温度である場合、最終組立工程時に、部分組立
工程でろう付けされる両電極５、８と両電極棒４、６と
の接合部のろう材が溶融し、両電極５、８と両電極棒
４、６とが位置ずれを起こして正規の位置に固定するの
が困難なため、遮断性能、耐電圧性能等、真空バルブと
しての性能が低下するという問題点があった。Since the conventional vacuum valve is constructed as described above, the brazing temperature performed in the subassembly process and the brazing temperature performed in the final assembly process are similar temperatures. In this case, at the time of the final assembly process, the brazing material at the joint between the electrodes 5 and 8 and the electrode rods 4 and 6 brazed in the partial assembly process is melted, and both electrodes 5 and 8 and the electrode rods 4 and 6 are melted. Since there is a positional deviation between the two and it is difficult to fix them in the proper position, there is a problem in that the performance as a vacuum valve, such as the breaking performance and the withstand voltage performance, deteriorates.
【０００８】この発明は上記のような問題点を解消する
ためになされたもので、部分組立工程で行うろう付け温
度と、最終組立工程で行うろう付け温度とが同じような
温度である場合にも、電極と電極棒との位置ずれを防止
して、真空バルブとしての性能を低下させることなく信
頼性の高い真空バルブを提供することを目的とするもの
である。The present invention has been made in order to solve the above-mentioned problems, and when the brazing temperature performed in the subassembly process and the brazing temperature performed in the final assembly process are similar to each other. It is also an object of the present invention to provide a highly reliable vacuum valve without preventing the displacement of the electrode and the electrode rod, and without deteriorating the performance of the vacuum valve.
【０００９】[0009]
【課題を解決するための手段】この発明の請求項１に係
る真空バルブは、筒状の絶縁容器とこの絶縁容器の両端
に配設される端板とを真空中でろう付けにより接合して
真空容器を形成し、真空容器内に端板をそれぞれ貫通し
て配設される第１および第２の電極棒の先端に連結され
互いに接離し得る一対の固定電極および可動電極を収納
した真空バルブにおいて、両電極に各電極棒の先端が嵌
入可能な穴を形成するとともに、両電極の各穴の内周面
および両電極棒の先端の各外周面のそれぞれ対応する位
置に環状の溝をそれぞれ形成し、両溝内に両溝に跨って
係止可能な係止部材を装着してろう付けすることによ
り、各電極棒および電極の連結を行うようにしたもので
ある。According to a first aspect of the present invention, there is provided a vacuum valve in which a cylindrical insulating container and end plates provided at both ends of the insulating container are joined by brazing in a vacuum. A vacuum valve that forms a vacuum container and houses a pair of fixed electrodes and movable electrodes that are connected to the tips of the first and second electrode rods that are respectively disposed through the end plates in the vacuum container and that can contact and separate from each other. In the above, in each of the electrodes, a hole into which the tip of each electrode rod can be inserted is formed, and an annular groove is formed at a position corresponding to each of the inner peripheral surface of each hole of both electrodes and each outer peripheral surface of the tip of both electrode rods. The electrode rods and electrodes are connected to each other by forming and brazing a locking member that can be locked across both grooves in both grooves.
【００１０】又、この発明の請求項２に係る真空バルブ
は、筒状の絶縁容器とこの絶縁容器の両端に配設される
端板とを真空中でろう付けにより接合して真空容器を形
成し、真空容器内に端板をそれぞれ貫通して配設され少
なくともいずれか一方が軸方向に第１および第２の部材
に分割される第１および第２の電極棒の先端に連結され
互いに接離し得る一対の固定電極および可動電極を収納
した真空バルブにおいて、第１の部材に第２の部材の先
端が嵌入可能な穴を形成するとともに、第１の部材の穴
の内周面および第２の部材の先端の外周面のそれぞれ対
応する位置に環状の溝を形成し、両溝内に両溝に跨って
係止可能な係止部材を装着してろう付けすることによ
り、第１および第２の部材の結合を行うようにしたもの
である。According to a second aspect of the present invention, a vacuum container is formed by brazing a cylindrical insulating container and end plates provided at both ends of the insulating container by brazing in a vacuum. Then, at least one of the first and second electrode rods is axially divided into first and second members, which are arranged in the vacuum container so as to pass through the end plates, and are connected to each other. In a vacuum valve accommodating a pair of separable fixed electrodes and movable electrodes, a hole into which a tip of a second member can be fitted is formed in a first member, and an inner peripheral surface of the hole of the first member and a second member. A ring-shaped groove is formed at a corresponding position on the outer peripheral surface of the tip of the member, and a locking member that can be locked across both grooves is mounted in both grooves, and brazing is performed. The two members are joined together.
【００１１】又、この発明の請求項３に係る真空バルブ
は、請求項１または２において、係止部材を周方向の一
部が分断され弾性変形可能なリング状部材としたもので
ある。Further, a vacuum valve according to a third aspect of the present invention is the vacuum valve according to the first or second aspect, wherein the locking member is a ring-shaped member that is partially deformable in the circumferential direction and is elastically deformable.
【００１２】又、この発明の請求項４に係る真空バルブ
は、請求項３において、リング状部材の外周面あるいは
内周面を厚み方向に傾斜させたものである。The vacuum valve according to a fourth aspect of the present invention is the vacuum valve according to the third aspect, wherein the outer peripheral surface or the inner peripheral surface of the ring-shaped member is inclined in the thickness direction.
【００１３】又、この発明の請求項５に係る真空バルブ
は、請求項３において、リング状部材の外周面の厚み方
向ほぼ中央部が最大径となるように両方向に傾斜、ある
いは内周面の厚み方向ほぼ中央部が最小径となるように
両方向に傾斜させたものである。The vacuum valve according to a fifth aspect of the present invention is the vacuum valve according to the third aspect, wherein the outer peripheral surface of the ring-shaped member is inclined in both directions so that the central portion in the thickness direction has a maximum diameter. It is slanted in both directions so that the central portion in the thickness direction has a minimum diameter.
【００１４】又、この発明の請求項６に係る真空バルブ
は、請求項３において、リング状部材の内外周のいずれ
か一方に、周方向に所定の間隔を介して少なくとも３箇
所に相手溝と係合するための突出部を有したものであ
る。The vacuum valve according to a sixth aspect of the present invention is the vacuum valve according to the third aspect, wherein at least three mating grooves are provided on one of the inner and outer peripheries of the ring-shaped member with a predetermined interval in the circumferential direction. It has a protrusion for engagement.
【００１５】又、この発明の請求項７に係る真空バルブ
は、請求項３において、リング状部材を断面く字状に形
成したものである。A vacuum valve according to a seventh aspect of the present invention is the vacuum valve according to the third aspect, wherein the ring-shaped member is formed in a V-shaped cross section.
【００１６】[0016]
【作用】この発明の請求項１における真空バルブの係止
部材は、両電極の各穴の内周面および両電極棒の外周面
にそれぞれ形成された環状の両溝に跨って装着されるこ
とにより、電極と電極棒とを連結する。According to the first aspect of the present invention, the locking member of the vacuum valve is mounted so as to straddle both annular grooves formed on the inner peripheral surface of each hole of both electrodes and the outer peripheral surface of both electrode rods. To connect the electrode and the electrode rod.
【００１７】又、この発明の請求項２における真空バル
ブの係止部材は、第１の部材の穴の内周面および第２の
部材の先端の外周面に、それぞれ形成された環状の両溝
に跨って装着されることにより、第１の部材と第２の部
材とを連結する。According to a second aspect of the present invention, the locking member of the vacuum valve is an annular groove formed on the inner peripheral surface of the hole of the first member and the outer peripheral surface of the tip of the second member. The first member and the second member are connected to each other by being mounted over the.
【００１８】又、この発明の請求項３における真空バル
ブの係止部材は、周方向の一部が分断され弾性変形可能
なリング状に形成される。Further, the locking member of the vacuum valve according to the third aspect of the present invention is formed in a ring shape which is partially deformable in the circumferential direction and elastically deformable.
【００１９】又、この発明の請求項４における真空バル
ブのリング状部材は、外周面あるいは内周面の傾斜によ
り、電極棒の先端の電極の穴への挿入および第２の部材
の先端の第１の部材の穴への挿入を容易にする。Further, in the ring-shaped member of the vacuum valve according to claim 4 of the present invention, the tip of the electrode rod is inserted into the hole of the electrode and the tip of the second member is moved by the inclination of the outer peripheral surface or the inner peripheral surface. The insertion of the member of 1 into the hole is facilitated.
【００２０】又、この発明の請求項５における真空バル
ブのリング状部材は、外周面あるいは内周面の厚み方向
ほぼ中央部が最大径あるいは最小径となるように両方向
に形成された傾斜により、電極棒の先端の電極の穴への
挿入および第２の部材の先端の第１の部材の穴への挿入
を容易にするとともに、装着後の位置ずれを防止する。Further, in the ring-shaped member of the vacuum valve according to claim 5 of the present invention, the outer peripheral surface or the inner peripheral surface is inclined in both directions so that substantially the central portion in the thickness direction has the maximum diameter or the minimum diameter. The insertion of the tip of the electrode rod into the hole of the electrode and the insertion of the tip of the second member into the hole of the first member are facilitated, and the positional displacement after mounting is prevented.
【００２１】又、この発明の請求項６における真空バル
ブのリング状部材は、内外周の少なくともいずれか一方
に形成された突出部で一方の溝内に装着される。Further, the ring-shaped member of the vacuum valve according to claim 6 of the present invention is mounted in one of the grooves by a protrusion formed on at least one of the inner and outer circumferences.
【００２２】又、この発明の請求項７における真空バル
ブのリング状部材は、断面く字状に形成されることによ
り、弾性変形が容易となる。Further, since the ring-shaped member of the vacuum valve according to the seventh aspect of the present invention is formed in a V shape in cross section, elastic deformation is facilitated.
【００２３】[0023]
【実施例】 実施例１．以下、この発明の実施例を図について説明す
る。図１はこの発明の実施例１における真空バルブの概
略構成を示す断面図、図２は図１における真空バルブの
電極と電極棒との接合部の構成を示す断面図である。図
において、図８に示す従来のものと同様な部分は、同一
符号を付して説明を省略する。EXAMPLES Example 1. Embodiments of the present invention will be described below with reference to the drawings. 1 is a sectional view showing a schematic structure of a vacuum valve according to a first embodiment of the present invention, and FIG. 2 is a sectional view showing a structure of a joint between an electrode and an electrode rod of the vacuum valve in FIG. In the figure, the same parts as those of the conventional one shown in FIG.
【００２４】１０は上部端板２を気密に貫通して配設さ
れる固定側電極棒で、先端の外周面に環状の溝１０ａが
形成されている。１１は上面に固定側電極棒１０の先端
が嵌入可能な穴１１ａが形成された固定側電極で、穴１
１ａの内面には固定側電極棒１０の環状の溝１０ａと対
応する位置に、溝１０ａと同じ幅の環状の溝１１ｂが形
成されている。１２は両溝１０ａ、１１ｂに跨って装着
される係止部材としてのリング状部材で、弾性変形可能
な部材で周方向の一部が分断されたＣ字状に形成されて
いる。Reference numeral 10 denotes a fixed-side electrode rod which is disposed so as to penetrate the upper end plate 2 in an airtight manner, and an annular groove 10a is formed on the outer peripheral surface of the tip. Reference numeral 11 denotes a fixed-side electrode having a hole 11a formed in the upper surface thereof into which the tip of the fixed-side electrode rod 10 can be fitted.
An annular groove 11b having the same width as the groove 10a is formed on the inner surface of 1a at a position corresponding to the annular groove 10a of the fixed electrode rod 10. Reference numeral 12 denotes a ring-shaped member as a locking member that is mounted across both the grooves 10a and 11b, and is an elastically deformable member formed in a C-shape with a part cut in the circumferential direction.
【００２５】１３は下部端板３の穴３ａを貫通し、下部
端板３の上部に一端が気密固着されたベローズ７の他端
に気密固着され、ベローズ７の撓みにより軸方向に移動
可能な可動側電極棒、１４はこの可動側電極棒１３の先
端に連結され、固定側電極１１と接離可能に配設された
可動側電極で、これら可動側電極棒１３と可動側電極１
４との連結部は、図示はしないが固定側電極棒１０と固
定側電極１１との連結部と同様に、可動側電極棒１３と
可動側電極１４とにそれぞれ形成された環状の両溝にリ
ング状部材が跨るように装着されている。Reference numeral 13 penetrates the hole 3a of the lower end plate 3 and is airtightly fixed to the other end of the bellows 7, one end of which is airtightly fixed to the upper part of the lower end plate 3, and is movable in the axial direction by the bending of the bellows 7. Movable side electrode rods, 14 are movable side electrodes which are connected to the tip of the movable side electrode rod 13 and are arranged so as to be able to come into contact with and separate from the fixed side electrode 11.
Although not shown, the connecting portion with 4 is formed in both annular grooves formed in the movable electrode rod 13 and the movable electrode 14, respectively, like the connecting portion between the fixed electrode rod 10 and the fixed electrode 11. The ring-shaped member is mounted so as to straddle it.
【００２６】上記のように構成された実施例１における
真空バルブは、まず、リング状部材１２を固定側電極棒
１０の溝１０ａに装着し、このリング状部材１２を弾性
変形させて溝１０ａの内部に完全に収納した後、固定側
電極棒１０の先端を固定側電極１１の穴１１ａに嵌入す
る。すると、リング状部材１２は両溝１０ａ、１１ｂが
一致した位置で、弾性力により径方向に膨らみその一部
が溝１１ｂ側にも移動して、両溝１０ａ、１１ｂに跨っ
た状態で保持される。次いで、この状態で真空中あるい
は水素ガス雰囲気中にてろう付け接合することにより、
両電極棒１０、１３と両電極１１、１４とは連結され
る。そして最後に、高真空中において上部端板２および
下部端板３を絶縁容器１の両端にろう付け接合すること
により真空密閉される。In the vacuum valve of the first embodiment constructed as described above, first, the ring-shaped member 12 is mounted in the groove 10a of the fixed electrode rod 10, and the ring-shaped member 12 is elastically deformed to form the groove 10a. After being completely housed inside, the tip of the fixed-side electrode rod 10 is fitted into the hole 11 a of the fixed-side electrode 11. Then, the ring-shaped member 12 expands in the radial direction by the elastic force at a position where both the grooves 10a and 11b coincide with each other, and a part of the ring-shaped member 12 also moves to the groove 11b side and is held in a state of straddling the both grooves 10a and 11b. It Then, by brazing in this state in a vacuum or hydrogen gas atmosphere,
Both electrode rods 10 and 13 and both electrodes 11 and 14 are connected. Then, finally, the upper end plate 2 and the lower end plate 3 are brazed to both ends of the insulating container 1 in a high vacuum to be vacuum-sealed.
【００２７】このように上記実施例１によれば、固定側
電極棒１０の先端の外周面に形成された環状の溝１０ａ
と、固定側電極１１の穴１１ａの内周面に形成された環
状の溝１１ｂとに跨ってリング状部材１２を装着し、固
定側電極棒１０と固定側電極１１とを連結保持した後、
ろう付け接合するようにしているので、このろう付け温
度が、仮に最終組立時のろう付け温度と同じような温度
で、一旦ろうが溶けるようなことがあっても、固定側電
極棒１０と固定側電極１１とが位置ずれをするようなこ
とも無くなり、信頼性の高い真空バルブを提供すること
ができる。As described above, according to the first embodiment, the annular groove 10a formed on the outer peripheral surface of the tip of the fixed electrode rod 10 is formed.
And the ring-shaped member 12 is mounted across the annular groove 11b formed in the inner peripheral surface of the hole 11a of the fixed-side electrode 11, and the fixed-side electrode rod 10 and the fixed-side electrode 11 are connected and held,
Since the brazing is performed, the brazing temperature is the same as the brazing temperature at the time of final assembly, and even if the brazing melts once, it is fixed to the fixed electrode rod 10. It is possible to provide a highly reliable vacuum valve because the positional displacement with the side electrode 11 is eliminated.
【００２８】実施例２．図３はこの発明の実施例２にお
ける真空バルブの電極と電極棒との接合部の構成を示す
断面図である。図において、図２に示す実施例１のもの
と同様な部分は同一符号を付して説明を省略する。１５
は両溝１０ａ、１１ｂに跨って装着される係止部材とし
てのリング状部材で、弾性変形可能な部材で且つ外周面
１５ａが厚み方向に傾斜するとともに、周方向の一部が
分断されたＣ字状に形成されている。Embodiment 2 FIG. FIG. 3 is a sectional view showing a structure of a joint portion between an electrode and an electrode rod of a vacuum valve according to a second embodiment of the present invention. In the figure, the same parts as those of the first embodiment shown in FIG. 15
Is a ring-shaped member as a locking member that is mounted across both the grooves 10a and 11b, is an elastically deformable member, and the outer peripheral surface 15a is inclined in the thickness direction, and a part of the peripheral direction is divided C It is formed in a letter shape.
【００２９】このように上記実施例２によれば、リング
状部材１５の外周面１５ａを厚み方向に傾斜させ、小径
側を下にして固定側電極棒１０の溝１０ａに装着させる
ようにしているので、固定側電極棒１０の先端を固定側
電極１１の穴１１ａに嵌入する際に、リング状部材１５
を溝１０ａに完全に収納させなくとも、嵌入時における
外周面１５ａの傾斜と穴１１ａの入口の角部との接触圧
により溝１０ａ内に押入されるため、上記実施例１にお
けると同様の効果を発揮し得ることは勿論のこと、固定
側電極棒１０の固定側電極１１の穴１１ａへの挿入が容
易となり、作業効率の向上を図ることができる。As described above, according to the second embodiment, the outer peripheral surface 15a of the ring-shaped member 15 is inclined in the thickness direction so that the small-diameter side is placed in the groove 10a of the fixed-side electrode rod 10 so as to face downward. Therefore, when the tip of the fixed-side electrode rod 10 is fitted into the hole 11a of the fixed-side electrode 11, the ring-shaped member 15
Even if it is not completely housed in the groove 10a, it is pushed into the groove 10a by the contact pressure between the inclination of the outer peripheral surface 15a and the corner of the entrance of the hole 11a at the time of fitting. Of course, it becomes easy to insert the fixed electrode 11 into the hole 11a of the fixed electrode 11, and the working efficiency can be improved.
【００３０】なお、上記実施例２ではリング状部材１５
の外周面１５ａに傾斜を形成した場合について説明した
が、リング状部材１５の内周面に傾斜を形成しても良
く、この場合は小径側を上にして固定側電極１１の溝１
１ｂに装着させるようにして、嵌入時における内周面の
傾斜と固定側電極棒１０の先端の角部との接触圧によ
り、溝１１ｂ内に押入するようにしても、固定側電極棒
１０の固定電極１１の穴１１ａの挿入が容易となる。
又、可動側電極棒１３と可動側電極１４との連結につい
ては、固定側の連結構造と同様なので説明を省略する。In the second embodiment, the ring-shaped member 15
Although the description has been given of the case where the outer peripheral surface 15a of the fixed electrode 11 is inclined, the inner peripheral surface of the ring-shaped member 15 may be inclined.
Even when the fixed side electrode rod 10 is mounted on the fixed side electrode rod 10 even if it is pushed into the groove 11b due to the contact pressure between the inclination of the inner peripheral surface and the corner portion of the tip of the fixed side electrode rod 10 at the time of fitting. The hole 11a of the fixed electrode 11 can be easily inserted.
Further, the connection between the movable side electrode rod 13 and the movable side electrode 14 is the same as that of the fixed side connecting structure, and the description thereof will be omitted.
【００３１】実施例３．図４はこの発明の実施例３にお
ける真空バルブの電極と電極棒との接合部の構成を示す
断面図である。図において、固定側電極棒１０および固
定側電極１１は上記各実施例のものと同様であるが、固
定側電極棒１０の溝１０ａの方が固定側電極１１の溝１
１ｂよりも若干幅広に形成されている。１６は溝１０ａ
に嵌入可能なリング状部材で、弾性変形可能な部材で且
つ外周面の厚み方向ほぼ中央部１６ａが最大径となるよ
うに両方向に傾斜するとともに、周方向の一部が分断さ
れたＣ字状に形成されている。Example 3. FIG. 4 is a sectional view showing a structure of a joint portion between an electrode and an electrode rod of a vacuum valve according to a third embodiment of the present invention. In the figure, the fixed-side electrode rod 10 and the fixed-side electrode 11 are the same as those in the above-described embodiments, but the groove 10a of the fixed-side electrode rod 10 is the groove 1 of the fixed-side electrode 11.
It is formed slightly wider than 1b. 16 is groove 10a
Is a ring-shaped member that can be fitted in, is an elastically deformable member, and is inclined in both directions so that the central portion 16a in the thickness direction of the outer peripheral surface has the maximum diameter, and has a C-shape that is partially cut in the circumferential direction. Is formed in.
【００３２】このように上記実施例３によれば、リング
状部材１６の外周面をその厚み方向ほぼ中央部１６ａが
最大径となるように両方向に傾斜させ、固定側電極棒１
０の溝１０ａに装着させるようにしているので、固定側
電極棒１０の先端を固定側電極１１の穴１１ａに嵌入す
る際に、リング状部材１６を溝１０ａに完全に収納させ
なくとも、嵌入時における外周面の下側傾斜部と穴１１
ａの入口の角部との接触圧により溝１０ａ内に押入され
るため、固定側電極棒１０の固定側電極１１の穴１１ａ
への挿入が容易となり、作業効率の向上を図ることがで
きる。又、装着された状態では、リング状部材１６の外
周面の傾斜部が弾性力により溝１１ｂの入口の角部に押
圧されるので、寸法精度を厳しくすることなくガタを防
止することができ、さらに信頼性を向上させることが可
能になる。As described above, according to the third embodiment, the outer peripheral surface of the ring-shaped member 16 is inclined in both directions so that the substantially central portion 16a in the thickness direction has the maximum diameter, and the fixed-side electrode rod 1
Since it is mounted in the groove 10a of No. 0, when the tip of the fixed-side electrode rod 10 is fitted in the hole 11a of the fixed-side electrode 11, the ring-shaped member 16 does not have to be completely housed in the groove 10a. Lower inclined portion and hole 11 on the outer peripheral surface
Since it is pushed into the groove 10a by the contact pressure with the corner portion of the inlet of a, the hole 11a of the fixed electrode 11 of the fixed electrode rod 10 is formed.
It is easy to insert into the body and work efficiency can be improved. Further, in the mounted state, the inclined portion of the outer peripheral surface of the ring-shaped member 16 is pressed by the elastic force to the corner portion of the entrance of the groove 11b, so that it is possible to prevent looseness without stricting the dimensional accuracy. Further, it becomes possible to improve reliability.
【００３３】なお、上記実施例３ではリング状部材１６
の外周面に傾斜を形成した場合について説明したが、リ
ング状部材１６の内周面をその厚み方向ほぼ中央部が最
小径となるように両方向に傾斜させても良く、この場合
は溝１１ｂの方を溝１０ａより若干幅広にして、溝１１
ｂ側にリング状部材１４を装着させるようにして、リン
グ状部材１６の内周面の傾斜部を弾性力により溝１０ａ
の入口の角部に押圧するようにしても、同様の効果を得
ることができる。In the third embodiment, the ring-shaped member 16
Although the case where the outer peripheral surface of the ring is inclined is described, the inner peripheral surface of the ring-shaped member 16 may be inclined in both directions so that the central portion in the thickness direction has the minimum diameter. The groove 11a is slightly wider than the groove 10a.
The ring-shaped member 14 is mounted on the b side, and the inclined portion of the inner peripheral surface of the ring-shaped member 16 is elastically driven to form the groove 10a.
The same effect can be obtained even by pressing at the corner of the entrance of the.
【００３４】実施例４．図５はこの発明の実施例４にお
ける真空バルブのリング状部材の構成を示す平面図であ
る。図から明らかなように、実施例４におけるリング状
部材１７は、内外周いずれか一方に円周方向に所定の間
隔を介した少なくとも３箇所に突出部１７ａを有したも
のであり、図示はしないがこれら各突出部１７ａが相手
側の溝内に係止されて、電極と電極棒との連結を行うも
のである。Embodiment 4 FIG. FIG. 5 is a plan view showing the structure of the ring-shaped member of the vacuum valve in the fourth embodiment of the present invention. As is apparent from the drawing, the ring-shaped member 17 in the fourth embodiment has protrusions 17a at at least three positions on either one of the inner and outer circumferences with a predetermined interval in the circumferential direction, and is not shown. Each of these protrusions 17a is locked in the groove on the other side to connect the electrode and the electrode rod.
【００３５】このように上記実施例４によれば、相手側
溝との係止を突出部１７ａで行うようにしているので、
突出部１７ａ間の部分を幅狭として断面積を小さくする
ことができるため、可撓性が増して弾性変形が簡単にな
り、電極棒の電極の穴への挿入が容易となる。As described above, according to the fourth embodiment, the engagement with the mating groove is performed by the protrusion 17a.
Since the cross-sectional area can be reduced by narrowing the portion between the protrusions 17a, the flexibility is increased, the elastic deformation is simplified, and the insertion of the electrode rod into the hole of the electrode is facilitated.
【００３６】実施例５．図６はこの発明の実施例５にお
ける真空バルブのリング状部材の構成を示す断面図であ
る。図から明らかなように、実施例５におけるリング状
部材１８は、肉厚の薄い板状部材を成形加工して断面く
字状に形成したものであり、実施例４の場合と同様に断
面積を小さくすることができるため、可撓性が増して弾
性変形が簡単になり、電極棒の電極の穴への挿入が容易
となる。Example 5. FIG. 6 is a sectional view showing a structure of a ring-shaped member of a vacuum valve according to a fifth embodiment of the present invention. As is apparent from the drawing, the ring-shaped member 18 in the fifth embodiment is formed by forming a thin plate-shaped member into a V-shaped cross section, and has a cross-sectional area similar to that in the fourth embodiment. Since it can be made smaller, flexibility is increased, elastic deformation is simplified, and insertion of the electrode rod into the hole of the electrode is facilitated.
【００３７】実施例６．尚、上記各実施例では電極棒と
電極との連結について説明したが、例えば図１に示す可
動側電極棒１３はベローズ７と接合しなければならない
等の理由で、外周面に段部が形成されている。そして、
この段部は同一部材を切削加工することにより形成する
場合と、径の異なる部材同士をろう付け接合で連結する
ことにより形成する場合とがある。Example 6. In each of the above-mentioned embodiments, the connection between the electrode rod and the electrode has been described. However, for example, the movable electrode rod 13 shown in FIG. Has been done. And
This step may be formed by cutting the same member or may be formed by connecting members having different diameters by brazing.
【００３８】本実施例は、このように可動側電極棒を径
の異なる部材同士を連結して形成する場合について説明
する。なお、固定側電極棒においても、何らかの理由で
段部を形成する必要があるが、この場合も同様であるの
で説明を省略する。図７はこの発明の実施例６における
真空バルブの可動側電極棒の接合部の構成を示す断面図
である。In this embodiment, the case where the movable-side electrode rod is formed by connecting members having different diameters in this manner will be described. It should be noted that the fixed-side electrode rod also needs to have a stepped portion for some reason, but the description is omitted because the same applies in this case. FIG. 7 is a sectional view showing a structure of a joint portion of a movable electrode rod of a vacuum valve according to a sixth embodiment of the present invention.
【００３９】図において、１９は下面に穴１９ａが形成
されるとともに、この穴１９ａの内周面に環状の溝１９
ｂが形成された第１の部材、２０は上端に第１の部材１
９の穴１９ａと嵌合可能な小径部２０ａが形成されると
ともに、この小径部２０ａの外周面の第１の部材１９の
溝１９ｂと対応する位置に環状の溝２０ｂが形成された
第２の部材、２１は両溝１９ｂ、２０ｂに跨って装着さ
れる係止部材としてのリング状部材で、弾性変形可能な
部材で周方向の一部が分断されたＣ字状に形成されてい
る。そして、これら１９〜２１で可動側電極棒２２が構
成され、両部材１９、２０の連結部に形成される段部に
ベローズ７が接合される。In the figure, 19 has a hole 19a formed in its lower surface, and an annular groove 19 is formed on the inner peripheral surface of this hole 19a.
b is the first member, 20 is the first member 1 at the upper end
9 is formed with a small diameter portion 20a that can be fitted into the hole 19a, and an annular groove 20b is formed on the outer peripheral surface of the small diameter portion 20a at a position corresponding to the groove 19b of the first member 19. A member 21 is a ring-shaped member as a locking member that is mounted across both the grooves 19b and 20b, and is an elastically deformable member formed in a C-shape with a part cut in the circumferential direction. The movable side electrode rod 22 is constituted by these 19 to 21, and the bellows 7 is joined to the step portion formed at the connecting portion of both members 19 and 20.
【００４０】このように上記実施例６によれば、第１の
部材１９の溝１９ｂと第２の部材２０の溝２０ｂとに跨
ってリング状部材２１を装着することにより、両部材１
９、２０を連結保持した後、ろう付け接合しているの
で、上記実施例１の場合と同様に、このろう付け温度
が、仮に最終組立時のろう付け温度と同じような温度
で、一旦ろうが溶けるようなことがあっても、両部材１
９、２０同士が位置ずれをすることもなく、ひいては可
動側電極（図示せず）との位置ずれも防止され、信頼性
の高い真空バルブを提供することができる。なお、リン
グ状部材２１に代えて上記各実施例２〜５における各リ
ング状部材１５、１６、１７、１８と同様なものを適用
しても良く、上記各実施例２〜５と同様の効果を発揮し
得ることは言うまでもない。As described above, according to the sixth embodiment, by mounting the ring-shaped member 21 across the groove 19b of the first member 19 and the groove 20b of the second member 20, both members 1
Since 9 and 20 are connected and held, they are brazed together. Therefore, as in the case of Embodiment 1, the brazing temperature is temporarily set to a temperature similar to the brazing temperature at the time of final assembly. Even if something melts, both members 1
It is possible to provide a highly reliable vacuum valve without causing positional displacement between 9 and 20 and preventing positional displacement from the movable electrode (not shown). Note that, instead of the ring-shaped member 21, the same members as the ring-shaped members 15, 16, 17, 18 in each of the above-described Examples 2 to 5 may be applied, and the same effect as each of the above-described Examples 2 to 5 may be applied. It goes without saying that it can exhibit.
【００４１】[0041]
【発明の効果】以上のように、この発明の請求項１によ
れば両電極に各電極棒の先端が嵌入可能な穴を形成する
とともに、両電極の各穴の内周面および両電極棒の先端
の各外周面のそれぞれ対応する位置に環状の溝をそれぞ
れ形成し、両溝内に両溝に跨って係止可能な係止部材を
装着してろう付けすることにより、各電極棒および電極
の連結を行うようにしたので、電極棒と電極との位置ず
れを防止し、信頼性の高い真空バルブを提供することが
できる。As described above, according to claim 1 of the present invention, holes are formed in both electrodes into which the tips of the electrode rods can be fitted, and the inner peripheral surface of each hole of both electrodes and both electrode rods are formed. An annular groove is formed at a position corresponding to each outer peripheral surface of the tip of each of the electrodes, and a locking member that can be locked across both the grooves is mounted in both the grooves to braze each electrode rod and Since the electrodes are connected to each other, it is possible to prevent the positional displacement between the electrode rod and the electrode and provide a highly reliable vacuum valve.
【００４２】又、この発明の請求項２によれば、第１の
部材に第２の部材の先端が嵌入可能な穴を形成するとと
もに、第１の部材の穴の内周面および第２の部材の先端
の外周面のそれぞれ対応する位置に環状の溝を形成し、
両溝内に両溝に跨って係止可能な係止部材を装着してろ
う付けすることにより、第１および第２の部材の結合を
行うようにしたので、電極棒を形成する第１および第２
の部材同士の位置ずれを防止し、信頼性の高い真空バル
ブを提供することができる。According to the second aspect of the present invention, the first member is formed with the hole into which the tip of the second member can be fitted, and the inner peripheral surface of the hole of the first member and the second member. Form an annular groove at the corresponding position on the outer peripheral surface of the tip of the member,
Since the first and second members are coupled by mounting a locking member that can be locked in both the grooves across the both grooves and brazing the first and second members forming the electrode rod. Second
It is possible to provide a highly reliable vacuum valve by preventing positional displacement between the members.
【００４３】又、この発明の請求項３によれば、請求項
１または２において、係止部材を周方向の一部が分断さ
れ弾性変形可能なリング状部材としたので、電極棒と電
極、電極棒を形成する両部材同士の位置ずれを防止し、
信頼性の高い真空バルブを提供することができる。According to a third aspect of the present invention, in the first or second aspect, since the locking member is a ring-shaped member which is elastically deformable by cutting a part in the circumferential direction, the electrode rod and the electrode, Prevents displacement of both members forming the electrode rod,
It is possible to provide a highly reliable vacuum valve.
【００４４】又、この発明の請求項４によれば、請求項
３において、リング状部材の外周面あるいは内周面を厚
み方向に傾斜させたので、電極棒先端の電極の穴への挿
入、第２の部材の第１の部材の穴への挿入が容易とな
り、作業効率の向上を図ることが可能な真空バルブを提
供することができる。According to a fourth aspect of the present invention, in the third aspect, since the outer peripheral surface or the inner peripheral surface of the ring-shaped member is inclined in the thickness direction, insertion of the tip of the electrode rod into the hole of the electrode, It is easy to insert the second member into the hole of the first member, and it is possible to provide a vacuum valve capable of improving work efficiency.
【００４５】又、この発明の請求項５によれば、請求項
３において、リング状部材の外周面の厚み方向ほぼ中央
部が最大径となるように両方向に傾斜、あるいは内周面
の厚み方向ほぼ中央部が最小径となるように両方向に傾
斜させたので、作業効率の向上を図ることが可能である
ことは勿論のこと、寸法精度を厳しくすることなくガタ
を防止し、信頼性の高い真空バルブを提供することがで
きる。According to a fifth aspect of the present invention, in the third aspect, the ring-shaped member is inclined in both directions so that the central portion in the thickness direction of the outer peripheral surface has the maximum diameter, or in the thickness direction of the inner peripheral surface. Since it is tilted in both directions so that the center part has the minimum diameter, it is possible to improve work efficiency and prevent rattling without strict dimensional accuracy and high reliability. A vacuum valve can be provided.
【００４６】又、この発明の請求項６によれば、請求項
３において、リング状部材の内外周のいずれか一方に、
周方向に所定の間隔を介して少なくとも３箇所に相手溝
と係合するための突出部を形成したので、可撓性が増し
て弾性変形が簡単になるため、電極棒先端の電極の穴へ
の挿入、第２の部材の第１の部材の穴への挿入が容易と
なり、作業効率の向上を図ることが可能な真空バルブを
提供することができる。According to a sixth aspect of the present invention, in the third aspect, either one of the inner and outer peripheries of the ring-shaped member is
Since the protrusions for engaging with the mating groove are formed at least at three positions in the circumferential direction at a predetermined interval, the flexibility is increased and the elastic deformation is simplified. It is easy to insert the second member into the hole of the first member, and it is possible to provide a vacuum valve capable of improving work efficiency.
【００４７】又、この発明の請求項７によれば、請求項
３において、リング状部材を断面く字状に形成したの
で、可撓性が増して弾性変形が簡単となるため、電極棒
先端の電極の穴への挿入、第２の部材の第１の部材の穴
への挿入が容易となり、作業効率の向上を図ることが可
能な真空バルブを提供することができる。According to claim 7 of the present invention, in claim 3, since the ring-shaped member is formed in a V shape in cross section, the flexibility is increased and the elastic deformation is simplified. It is easy to insert the electrode into the hole of the electrode and the second member into the hole of the first member, and it is possible to provide a vacuum valve capable of improving work efficiency.
【図１】 この発明の実施例１における真空バルブの概
略構成を示す断面図である。FIG. 1 is a sectional view showing a schematic configuration of a vacuum valve according to a first embodiment of the present invention.
【図２】 図１における真空バルブの電極と電極棒との
接合部の構成を示す断面図である。FIG. 2 is a cross-sectional view showing a configuration of a joint between an electrode and an electrode rod of the vacuum valve in FIG.
【図３】 この発明の実施例２における真空バルブの電
極と電極棒との接合部の構成を示す断面図である。FIG. 3 is a sectional view showing a structure of a joint portion between an electrode and an electrode rod of a vacuum valve according to a second embodiment of the present invention.
【図４】 この発明の実施例３における真空バルブの電
極と電極棒との接合部の構成を示す断面図である。FIG. 4 is a cross-sectional view showing a structure of a joint portion between an electrode and an electrode rod of a vacuum valve according to a third embodiment of the present invention.
【図５】 この発明の実施例４における真空バルブのリ
ング状部材の構成を示す平面図である。FIG. 5 is a plan view showing a structure of a ring-shaped member of a vacuum valve according to a fourth embodiment of the present invention.
【図６】 この発明の実施例５における真空バルブのリ
ング状部材の構成を示す断面図である。FIG. 6 is a sectional view showing a structure of a ring-shaped member of a vacuum valve according to a fifth embodiment of the present invention.
【図７】 この発明の実施例６における真空バルブの概
略構成を示す断面図である。FIG. 7 is a sectional view showing a schematic configuration of a vacuum valve according to a sixth embodiment of the present invention.
【図８】 従来の真空バルブの概略構成を示す断面図で
ある。FIG. 8 is a cross-sectional view showing a schematic configuration of a conventional vacuum valve.
【図９】 図８における固定側電極棒および固定側電極
の接合部の詳細を示す正面図および側面図である。9A and 9B are a front view and a side view showing details of a fixed-side electrode rod and a fixed-side electrode joint portion in FIG.
１ 絶縁容器、２，３ 端板、７ ベローズ、９ アー
クシールド、１０ 固定側電極棒、１０ａ 溝、１１
固定側電極、１１ａ 穴、１１ｂ 溝、１２，１５，１
６，１７，１８，２１ リング状部材、１５ａ 外周
面、１６ａ 中央部、１７ａ 突出部、１９ 第１の部
材、１９ａ 穴、１９ｂ 溝、２０ 第２の部材、２０
ａ 小径部、２０ｂ 溝。1 insulating container, 2, 3 end plate, 7 bellows, 9 arc shield, 10 fixed side electrode rod, 10a groove, 11
Fixed side electrode, 11a hole, 11b groove, 12, 15, 1
6,17,18,21 ring-shaped member, 15a outer peripheral surface, 16a central portion, 17a protruding portion, 19 first member, 19a hole, 19b groove, 20 second member, 20
a Small diameter portion, 20b groove.
Claims (7)
配設される端板とを真空中でろう付けにより接合して真
空容器を形成し、上記真空容器内に上記端板をそれぞれ
貫通して配設される第１および第２の電極棒の先端に連
結され互いに接離し得る一対の固定電極および可動電極
を収納した真空バルブにおいて、上記両電極に上記各電
極棒の先端が嵌入可能な穴を形成するとともに、上記両
電極の各穴の内周面および上記両電極棒の先端の各外周
面のそれぞれ対応する位置に環状の溝をそれぞれ形成
し、上記両溝内に上記両溝に跨って係止可能な係止部材
を装着してろう付けすることにより、上記各電極棒およ
び電極の連結を行うようにしたことを特徴とする真空バ
ルブ。1. A vacuum container is formed by joining a cylindrical insulating container and end plates provided at both ends of the insulating container by brazing in a vacuum to form a vacuum container, and the end plates are respectively placed in the vacuum container. In a vacuum valve that accommodates a pair of fixed electrodes and movable electrodes that are connected to the tips of the first and second electrode rods penetratingly arranged and that can be brought into contact with and separated from each other, the tips of the electrode rods are inserted into both electrodes. Along with forming the possible holes, annular grooves are formed in the inner peripheral surface of each hole of both electrodes and the outer peripheral surfaces of the tips of both electrode rods respectively corresponding to each other. A vacuum valve, characterized in that the electrode rod and the electrode are connected by mounting a locking member that can be locked across the groove and brazing.
配設される端板とを真空中でろう付けにより接合して真
空容器を形成し、上記真空容器内に上記端板をそれぞれ
貫通して配設され少なくともいずれか一方が軸方向に第
１および第２の部材に分割される第１および第２の電極
棒の先端に連結され互いに接離し得る一対の固定電極お
よび可動電極を収納した真空バルブにおいて、上記第１
の部材に上記第２の部材の先端が嵌入可能な穴を形成す
るとともに、上記第１の部材の穴の内周面および上記第
２の部材の先端の外周面のそれぞれ対応する位置に環状
の溝を形成し、上記両溝内に上記両溝に跨って係止可能
な係止部材を装着してろう付けすることにより、上記第
１および第２の部材の結合を行うようにしたことを特徴
とする真空バルブ。2. A tubular insulating container and end plates arranged at both ends of the insulating container are joined by brazing in a vacuum to form a vacuum container, and the end plates are respectively placed in the vacuum container. A pair of a fixed electrode and a movable electrode that are connected to the tips of the first and second electrode rods that are arranged to penetrate therethrough and at least one of which is axially divided into the first and second members and that can be brought into contact with and separated from each other. In the stored vacuum valve, the first
A hole into which the tip of the second member can be fitted is formed, and an annular shape is formed in the inner peripheral surface of the hole of the first member and the outer peripheral surface of the tip of the second member respectively at corresponding positions. A groove is formed, and a locking member that can be locked across the both grooves is mounted in the both grooves and brazed, so that the first and second members are coupled to each other. Characteristic vacuum valve.
性変形可能なリング状部材であることを特徴とする請求
項１または２記載の真空バルブ。3. The vacuum valve according to claim 1, wherein the locking member is a ring-shaped member that is elastically deformable by cutting a part in the circumferential direction.
が厚み方向に傾斜していることを特徴とする請求項３記
載の真空バルブ。4. The vacuum valve according to claim 3, wherein the ring-shaped member has an outer peripheral surface or an inner peripheral surface inclined in the thickness direction.
中央部が最大径となるように両方向に傾斜、あるいは内
周面の厚み方向ほぼ中央部が最小径となるように両方向
に傾斜していることを特徴とする請求項３記載の真空バ
ルブ。5. The ring-shaped member is inclined in both directions so that the outer peripheral surface has a maximum diameter in the substantially central portion in the thickness direction, or is inclined in both directions so that the inner peripheral surface has a minimum diameter in the approximately central portion in the thickness direction. The vacuum valve according to claim 3, wherein:
に、周方向に所定の間隔を介して少なくとも３箇所に相
手溝と係合するための突出部を有していることを特徴と
する請求項３記載の真空バルブ。6. The ring-shaped member has protrusions for engaging with mating grooves at at least three locations on the inner or outer periphery at predetermined intervals in the circumferential direction. The vacuum valve according to claim 3, wherein
ていることを特徴とする請求項３記載の真空バルブ。7. The vacuum valve according to claim 3, wherein the ring-shaped member is formed in a V shape in cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075892A JPH08273500A (en) | 1995-03-31 | 1995-03-31 | Vacuum bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075892A JPH08273500A (en) | 1995-03-31 | 1995-03-31 | Vacuum bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08273500A true JPH08273500A (en) | 1996-10-18 |
Family
ID=13589432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7075892A Pending JPH08273500A (en) | 1995-03-31 | 1995-03-31 | Vacuum bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08273500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2306481A1 (en) * | 2009-09-30 | 2011-04-06 | Hitachi Ltd. | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
-
1995
- 1995-03-31 JP JP7075892A patent/JPH08273500A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2306481A1 (en) * | 2009-09-30 | 2011-04-06 | Hitachi Ltd. | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
| CN102034643A (en) * | 2009-09-30 | 2011-04-27 | 株式会社日立制作所 | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
| JP2011096627A (en) * | 2009-09-30 | 2011-05-12 | Hitachi Ltd | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
| EP2365504A1 (en) * | 2009-09-30 | 2011-09-14 | Hitachi, Ltd. | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
| US8294057B2 (en) | 2009-09-30 | 2012-10-23 | Hitachi, Ltd. | Electrode for switch and vacuum switch, and method of manufacturing electrode for switch or vacuum switch |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |