JPH04190530A - Vacuum valve - Google Patents
Vacuum valveInfo
- Publication number
- JPH04190530A JPH04190530A JP31871490A JP31871490A JPH04190530A JP H04190530 A JPH04190530 A JP H04190530A JP 31871490 A JP31871490 A JP 31871490A JP 31871490 A JP31871490 A JP 31871490A JP H04190530 A JPH04190530 A JP H04190530A
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- stopper
- contact
- fixed flange
- bellows
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、真空遮断器や真空開閉器に用いられる真空
バルブに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum valve used in a vacuum circuit breaker or vacuum switch.
第３図は従来の真空バルブの構成を示す断面図である。 FIG. 3 is a sectional view showing the structure of a conventional vacuum valve.
図において、真空タンク１が絶縁筒２と、絶縁筒２の両
端に気密に接合された蓋板３Ａ、３Ｂとにより構成され
ている。真空タンク１の内部には固定接触子４と可動接
触子５とが収納され接点を形成している。固定接触子４
および可動接触子５はそれぞれベローズ６Ａ、６Ｂを介
して蓋板３Ａ、３Ｂに気密に接合され、反接点側が真空
タンク１の外部に引き出されている。In the figure, a vacuum tank 1 is comprised of an insulating tube 2 and lid plates 3A and 3B hermetically joined to both ends of the insulating tube 2. A fixed contact 4 and a movable contact 5 are housed inside the vacuum tank 1 to form a contact point. Fixed contact 4
The movable contactor 5 is hermetically joined to the cover plates 3A, 3B via bellows 6A, 6B, respectively, and the side opposite to the contact point is drawn out to the outside of the vacuum tank 1.
可動接触子５は、図の上方に連結されている図示されて
いない駆動装置によってＸ方向に駆動される。一方、固
定接触子４には、真空タンク１の外部に引き出された部
分に固定フランジ７が接合されている。固定接触子４ば
、固定フランジ７に設けられた固定ネジ孔７Ａを介して
支持部８ （点線）にネジ止めされることによって、支
持部８に固定および導電接続されている。The movable contactor 5 is driven in the X direction by a drive device (not shown) connected above the figure. On the other hand, a fixed flange 7 is joined to a portion of the fixed contact 4 that is drawn out from the vacuum tank 1 . The fixed contact 4 is fixedly and electrically connected to the support part 8 (dotted line) by being screwed to the support part 8 (dotted line) through a fixing screw hole 7A provided in the fixed flange 7.
ベローズ６Ｂは、可動接触子５の開閉時における変位分
を吸収する。一方、ベローズ６Ａは、接点の閉極時に固
定接触子４が可動接触子５より受ける衝撃を吸収し、蓋
板３Ａと絶縁筒２との接合部などを保護している。The bellows 6B absorbs the displacement when the movable contact 5 is opened and closed. On the other hand, the bellows 6A absorbs the impact that the fixed contact 4 receives from the movable contact 5 when the contact is closed, and protects the joint between the cover plate 3A and the insulating cylinder 2, etc.
しかしながら、前述したような従来の装置は、固定接触
子側のベローズに過大な応力と振動が加わり、ベローズ
の寿命が短くなるという問題点があった。However, the conventional device as described above has a problem in that excessive stress and vibration are applied to the bellows on the fixed contact side, shortening the life of the bellows.
すなわち、接点の閉極時に可動接触子が固定接触子に与
える衝撃によって、固定接触子と真空タンクとが互いに
振動し合い、この振動が長時間続く。また、固定接触子
と絶縁筒との中心軸ずれが生ずると、ベローズには過大
な応力が加わる。このように、接点の閉極時における長
時間の振動や中心軸すれか、ベローズの寿命を著しく短
くするという要因になっていた。That is, due to the impact that the movable contactor gives to the fixed contactor when the contact is closed, the fixed contactor and the vacuum tank vibrate with each other, and this vibration continues for a long time. Furthermore, if the center axes of the fixed contact and the insulating cylinder are misaligned, excessive stress is applied to the bellows. As described above, long-term vibration and center axis misalignment during closing of the contacts are factors that significantly shorten the life of the bellows.
この発明の目的は、振動抑制のためのストッパーを設け
ることにより、ベローズの寿命を長く保つことにある。An object of the present invention is to extend the life of the bellows by providing a stopper for vibration suppression.
上記目的を達成するために、この発明によれば、絶縁筒
の両端に蓋板が気密に接合されてなる真空タンクの内部
に固定接触子と可動接触子とからなる接点が収納される
とともに、前記固定接触子および前記可動接触子がそれ
ぞれベローズを介して前記蓋板に気密に接合されて真空
タンクの外部に引き出され、前記固定接触子の真空タン
ク外部に引き出された部分に前記可動接触子の可動方向
に貫通する固定ネジ孔を有する固定フランジを備えたも
のにおいて、一方端が固定接触子側の前記蓋板に接合さ
れ他方端が前記固定フランジの外周を包み込むようにし
てＬ字状に内径側に曲げられたストッパーを設けたもの
とする。In order to achieve the above object, according to the present invention, a contact consisting of a fixed contact and a movable contact is housed inside a vacuum tank formed by a lid plate hermetically joined to both ends of an insulating cylinder, and The fixed contact and the movable contact are each hermetically joined to the lid plate via a bellows and are drawn out of the vacuum tank, and the movable contact is attached to the portion of the fixed contact drawn out to the outside of the vacuum tank. A fixed flange having a fixed screw hole penetrating in the direction of movement of the fixed flange, one end of which is joined to the cover plate on the fixed contact side and the other end wrapped around the outer periphery of the fixed flange to form an L-shape. A bent stopper is provided on the inner diameter side.
かかる構成に加えて、固定フランジの外周端部の反真空
タンク側に切欠き部を設け、この切欠き部にストッパー
のＬ字状に曲げられた端部が嵌まり込むように配され、
固定フランジの反真空タンク側の面からストッパー端部
が突出しないように形成されたものとし、さらに、固定
フランジの反真空タンク側とストッパーとの対向面に緩
衝材を介装してなるものとする。In addition to this configuration, a notch is provided at the outer peripheral end of the fixed flange on the side opposite to the vacuum tank, and the L-shaped end of the stopper is arranged to fit into the notch,
The end of the stopper shall be formed so that it does not protrude from the surface of the fixed flange on the anti-vacuum tank side, and a cushioning material shall be interposed between the opposite surface of the fixed flange on the anti-vacuum tank side and the stopper. do.
〔作用］
この発明の構成によれば、ストッパーの一方端を固定接
触子側の蓋板に接合し、他方端を固定フランジの外周を
包み込むようにしてＬ字状に内径側に曲げるように構成
された。そのために固定フランジが振動してもストッパ
ーの内面に当たり、固定フランジの縦横の揺へによる変
位が抑制されるようになる。したがって、接点の閉極時
における固定接触子の真空タンクに対する振動振幅が小
さくなり、結果として振動の継続時間も短くなる。[Function] According to the configuration of the present invention, one end of the stopper is joined to the cover plate on the fixed contact side, and the other end is bent inward in an L shape so as to wrap around the outer periphery of the fixed flange. It was done. Therefore, even if the fixed flange vibrates, it hits the inner surface of the stopper, and displacement of the fixed flange due to vertical and horizontal vibrations is suppressed. Therefore, the vibration amplitude of the fixed contact relative to the vacuum tank when the contact is closed is reduced, and as a result, the duration of the vibration is also shortened.
また、固定接触子と絶縁筒との中心軸ずれが小さくなり
、ベローズにかかる機微的応力も低減される。Furthermore, the center axis misalignment between the fixed contact and the insulating cylinder is reduced, and the subtle stress applied to the bellows is also reduced.
上記の構成に加えて、固定フランジに切欠き部を設けこ
の切欠き部にストッパー０５字状に曲げられた端部が嵌
まり込むように配され、固定フランジの反真空タンク側
の面からストッパーの端部が突出しないように形成され
た。そのために、固定フランジの固定ネジ孔を介して真
空バルブを固定支持する相手側の支°持部対向面が平坦
で済み、真空バルブの支持構成が非常に簡素化される。In addition to the above configuration, a notch is provided in the fixed flange, and the bent end of the stopper is fitted into this notch, and the stopper is inserted from the side of the fixed flange opposite to the vacuum tank. The end of the plate is formed so that it does not protrude. Therefore, the opposing surface of the supporting portion of the other side that fixedly supports the vacuum valve through the fixing screw hole of the fixing flange can be flat, and the supporting structure of the vacuum valve can be greatly simplified.
さらに、上記の構成に加えて、固定フランジの反真空タ
ンク側とストッパーとの対向面に緩衝材を介装した。そ
のために、固定接触子の真空タンクに対する振動が吸収
され、振幅の減衰が大きくなるとともに、振動の継続時
間もさらに短くなる。Furthermore, in addition to the above configuration, a cushioning material was interposed between the opposite side of the fixed flange to the stopper and the side opposite to the vacuum tank. Therefore, the vibration of the fixed contact relative to the vacuum tank is absorbed, the amplitude attenuation is increased, and the duration of the vibration is further shortened.
以下この発明を実施例に基づいて説明する。 The present invention will be explained below based on examples.
第１図はこの発明の実施例にかかる真空パルブの要部構
成を示す断面図であり、円板状の固定フランジ７０の外
周に切欠き部７０八が設げられている。FIG. 1 is a cross-sectional view showing the main structure of a vacuum valve according to an embodiment of the present invention, in which a notch 708 is provided on the outer periphery of a disk-shaped fixing flange 70.
うにしてＬ字状に内径側に曲げられている。また、図に
おいて、ストッパー９の下面は固定フランジ７０の下面
より突出しないように形成されである。It is bent inward in an L-shape. Further, in the figure, the lower surface of the stopper 9 is formed so as not to protrude from the lower surface of the fixed flange 70.
その他の構成は第３図の従来の装置と同じなので、同じ
部分には同一参照符号を用いることにより詳細な説明は
省略する。The rest of the configuration is the same as the conventional device shown in FIG. 3, so detailed explanations will be omitted by using the same reference numerals for the same parts.
切欠き部７０Ａにおいて、固定フランジ７ｏとストッパ
ー９との間隙は微小な寸法に保っておく。接点の閉極時
に固定フランジ７ｏがストッパー９に対して振動しても
ストッパー９に当たり、横揺れや縦揺れによる固定フラ
ンジ７ｏの変位が抑制される。In the notch 70A, the gap between the fixed flange 7o and the stopper 9 is kept small. Even if the fixed flange 7o vibrates with respect to the stopper 9 when the contact is closed, the fixed flange 7o hits the stopper 9, and displacement of the fixed flange 7o due to horizontal shaking or pitching is suppressed.
したがって、固定接触子４の真空タンク１に対する振動
振幅が小さくなり、振動の継続時間が短くなる。そのた
めに、ベローズ６Ａの受ける振動時間も短くなりかつ振
幅も小さくなるので、ベローズ６Ａの寿命を長く保つこ
とができる。また、固定接くなり、ベローズ６Ａにかか
る機械的なせん断心力が緩和される。Therefore, the vibration amplitude of the fixed contactor 4 relative to the vacuum tank 1 becomes smaller, and the duration of the vibration becomes shorter. For this reason, the vibration time that the bellows 6A is subjected to is shortened and the amplitude is also reduced, so that the life of the bellows 6A can be maintained for a long time. In addition, the bellows 6A is in fixed contact, and the mechanical shear core force applied to the bellows 6A is alleviated.
さらに、第１図において、固定フランジ７０の下面から
はストッパー９の下端が突出しないので、支持部８の対
向面が平坦で済み、真空バルブの支持構成が非常に簡単
になる。Furthermore, as shown in FIG. 1, since the lower end of the stopper 9 does not protrude from the lower surface of the fixed flange 70, the facing surface of the support portion 8 can be flat, and the supporting structure of the vacuum valve can be extremely simplified.
また、第２図はこの発明の異なる実施例にががる真空バ
ルブの要部構成を示す断面図である。固定フランジ７０
の切欠き部７０Ａにおいて、固定フランジ７０とストッ
パー９との対向面にゴムなどの緩衝材１０が介装されて
いる。その他の構成は、第１図のそれと同しである。Further, FIG. 2 is a sectional view showing the configuration of essential parts of a vacuum valve according to a different embodiment of the present invention. Fixed flange 70
In the notch 70A, a cushioning material 10 such as rubber is interposed between the opposing surfaces of the fixed flange 70 and the stopper 9. The other configurations are the same as those shown in FIG.
緩衝材１０が介装されたことにより、接点の閉極時に生
ずる固定接触子４の振動が減衰しゃすくなり、ベローズ
６Ａの寿命をさらに長く伸ばすことができる。By interposing the buffer material 10, the vibration of the fixed contact 4 that occurs when the contact is closed is easily damped, and the life of the bellows 6A can be further extended.
この発明は前述のように、ストッパーで固定フランジの
外周を包み込むように構成したことにより、ベローズに
かかる振動振幅やせん断心力が小さ（なるとともに、振
動の継続時間も短くなり、ベローズの寿命を長く保つこ
とができる。As mentioned above, in this invention, by configuring the stopper to wrap around the outer circumference of the fixed flange, the vibration amplitude and shear core force applied to the bellows are small (as well as the duration of vibration is shortened, and the life of the bellows is extended). can be kept.
また、固定フランジとストッパーとの間に緩衝材を介装
したことにより、ベローズの寿命をさらに長く伸ばすこ
とができる。Furthermore, by interposing a cushioning material between the fixed flange and the stopper, the life of the bellows can be further extended.
さらに、固定フランジの外周端部に切欠き部を設けると
ともにストッパーのＬ形端部をこの切欠き部に嵌め込む
ことにより、真空バルブの支持構成を非常に簡素化する
ことができる。Further, by providing a notch at the outer circumferential end of the fixed flange and fitting the L-shaped end of the stopper into this notch, the supporting structure of the vacuum valve can be greatly simplified.
第１図および第２図はこの発明の互いに異なる実施例に
かかる真空バルブの要部構成を示す断面図、第３図は従
来の真空バルブの構成例を示す断面図である。
１：真空タンク、２：絶縁筒、３Ａ、３Ｂ：蓋板、４：
固定接触子、５：可動接触子、６Ａ、６Ｂ：ベローズ、
７，７０：固定フランジ、８：支持部、９：ストッパー
、１０：緩衝材、７Ａ：固定ネジ孔、７０Ａニー ソ
−
第１図
第２図FIGS. 1 and 2 are cross-sectional views showing the main structure of vacuum valves according to different embodiments of the present invention, and FIG. 3 is a cross-sectional view showing an example of the structure of a conventional vacuum valve. 1: Vacuum tank, 2: Insulating cylinder, 3A, 3B: Lid plate, 4:
Fixed contact, 5: Movable contact, 6A, 6B: Bellows,
7, 70: Fixed flange, 8: Support part, 9: Stopper, 10: Cushioning material, 7A: Fixed screw hole, 70A knee hole
- Figure 1 Figure 2
Claims (1)
ンクの内部に固定接触子と可動接触子とからなる接点が
収納されるとともに、前記固定接触子および前記可動接
触子がそれぞれベローズを介して前記蓋板に気密に接合
されて真空タンクの外部に引き出され、前記固定接触子
の真空タンク外部に引き出された部分に前記可動接触子
の可動方向に貫通する固定ネジ孔を有する固定フランジ
を備えたものにおいて、一方端が固定接触子側の前記蓋
板に接合され他方端が前記固定フランジの外周を包み込
むようにしてＬ字状に内径側に曲げられたストッパーを
設けたことを特徴とする真空バルブ。 ２）請求項１記載のものにおいて、固定フランジの外周
端部の反真空タンク側に切欠き部を設け、この切欠き部
にストッパーのＬ字状に曲げられた端部が嵌まり込むよ
うに配され、固定フランジの反真空タンク側の面からス
トッパー端部が突出しないように形成されたことを特徴
とする真空バルブ。 ３）請求項１或るいは２記載のものにおいて、固定フラ
ンジの反真空タンク側とストッパーとの対向面に緩衝材
を介装してなることを特徴とする真空バルブ。[Claims] 1) A contact consisting of a fixed contact and a movable contact is housed inside a vacuum tank in which a lid plate is hermetically joined to both ends of an insulating cylinder, and the fixed contact and the Each of the movable contacts is hermetically joined to the lid plate via a bellows and drawn out to the outside of the vacuum tank, and penetrates the portion of the fixed contact drawn out to the outside of the vacuum tank in the moving direction of the movable contact. In a device equipped with a fixed flange having fixed screw holes, one end is joined to the cover plate on the fixed contact side, and the other end is bent inward in an L shape so as to wrap around the outer periphery of the fixed flange. A vacuum valve characterized by having a stopper. 2) In the product according to claim 1, a notch is provided at the outer peripheral end of the fixed flange on the side opposite to the vacuum tank, and the L-shaped end of the stopper is fitted into the notch. A vacuum valve characterized in that the end of the stopper is formed so that it does not protrude from the surface of the fixed flange on the side opposite to the vacuum tank. 3) The vacuum valve according to claim 1 or 2, characterized in that a buffer material is interposed between the opposite side of the fixed flange and the stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2318714A JP2689725B2 (en) | 1990-11-24 | 1990-11-24 | Vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2318714A JP2689725B2 (en) | 1990-11-24 | 1990-11-24 | Vacuum valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04190530A true JPH04190530A (en) | 1992-07-08 |
| JP2689725B2 JP2689725B2 (en) | 1997-12-10 |
Family
ID=18102158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2318714A Expired - Fee Related JP2689725B2 (en) | 1990-11-24 | 1990-11-24 | Vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2689725B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983448A (en) * | 2014-05-27 | 2014-08-13 | 江苏森源电气股份有限公司 | Mechanical property on-line detecting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104163A (en) * | 1973-02-09 | 1974-10-02 |
-
1990
- 1990-11-24 JP JP2318714A patent/JP2689725B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104163A (en) * | 1973-02-09 | 1974-10-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983448A (en) * | 2014-05-27 | 2014-08-13 | 江苏森源电气股份有限公司 | Mechanical property on-line detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2689725B2 (en) | 1997-12-10 |
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