JPS6230757Y2 - - Google Patents
Info
- Publication number
- JPS6230757Y2 JPS6230757Y2 JP18618580U JP18618580U JPS6230757Y2 JP S6230757 Y2 JPS6230757 Y2 JP S6230757Y2 JP 18618580 U JP18618580 U JP 18618580U JP 18618580 U JP18618580 U JP 18618580U JP S6230757 Y2 JPS6230757 Y2 JP S6230757Y2
- Authority
- JP
- Japan
- Prior art keywords
- movable electrode
- electrode rod
- end plate
- insulating
- metal case
- 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 16
- 230000004888 barrier function Effects 0.000 claims description 14
- 238000009413 insulation Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 3
- 239000004412 Bulk moulding compound Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Description
【考案の詳細な説明】 本考案は真空しや断器に関するものである。[Detailed explanation of the idea] The present invention relates to a vacuum shield and disconnector.
従来の真空しや断器においては絶縁筒の両端に
金属端板を取付けて真空容器を形成し、各端板に
夫々固定電極棒および可動電極棒を取付けてい
た。従つて、外部沿面絶縁は絶縁筒を受持つてい
たが、絶縁筒は長さを長くすることは比較的容易
であるために3.3/6.6KVなどの電圧に充分耐える
ものであつた。しかし、絶縁筒は製作が面倒であ
るとともに大形で高価となつた。そこで、一端閉
塞の筒状の金属ケースの開口端に絶縁端板を取付
けて真空容器を形成し、金属ケースの閉塞端に固
定電極棒を挿着するとともに絶縁端板にベローズ
を介して可動電極棒を遊挿した真空しや断器が開
発された。しかるに、この形の真空しや断器では
外部沿面絶縁は絶縁端板が受持つことになり、絶
縁端板の径を大きくすることは強度的に比較的困
難であるので充分な絶縁沿面耐圧を得ることがで
きなかつた。 In conventional vacuum chamber disconnectors, metal end plates are attached to both ends of an insulating cylinder to form a vacuum vessel, and a fixed electrode rod and a movable electrode rod are attached to each end plate, respectively. Therefore, the external creeping insulation was carried out by the insulating tube, and since it was relatively easy to increase the length of the insulating tube, it was able to withstand voltages such as 3.3/6.6 KV. However, the insulating cylinder is troublesome to manufacture, large in size, and expensive. Therefore, an insulating end plate is attached to the open end of a cylindrical metal case with one end closed to form a vacuum container, and a fixed electrode rod is inserted into the closed end of the metal case, and a movable electrode is connected to the insulated end plate via a bellows. A vacuum cutter with a loosely inserted rod was developed. However, in this type of vacuum shield disconnector, the external creepage insulation is provided by the insulating end plates, and it is relatively difficult to increase the diameter of the insulating end plates in terms of strength, so it is necessary to provide sufficient creepage withstand voltage. I couldn't get it.
本考案は上記の欠点を除去して、一端閉塞の筒
状の金属ケースの開口端に絶縁端板を取付けて真
空容器を形成した真空しや断器の外部沿面耐圧を
向上することを目的とする。 The purpose of the present invention is to eliminate the above-mentioned drawbacks and improve the external creepage resistance of a vacuum chamber and disconnector, which has a vacuum container formed by attaching an insulating end plate to the open end of a cylindrical metal case with one end closed. do.
以下本考案の実施例を図面とともに説明する。
１は一端が閉塞された円筒状の金属ケース、２は
金属ケース１の開口端に取付けられたセラミツク
などから成る絶縁端板で、金属ケース１と絶縁端
板２により真空容器を形成する。３は金属ケース
１の閉塞端に挿着された固定電極棒、４は絶縁端
板２の中心に設けた孔２ａに遊挿されるとともに
ベローズ５を介して絶縁端板２に取付けられた可
動電極棒、６，７は夫々固定電極棒３および可動
電極棒４の先端に接離自在に対向するよう取付け
られた固定電極および可動電極である。又、可動
電極棒４の外端にはねじ部が設けられ、このねじ
部には可動電極棒４よりも径の大きな止めナツト
８，９を螺着するとともに可動側導体１０を挿通
し、該ねじ部にはさらに連結ロツド１１を螺着す
る。１２は可動側導体１０に取付けられたリード
線である。１３は小径部１３ａと大径部１３ｂと
から成る円筒状の絶縁バリヤで、小径部１３ａは
可動電極棒４の絶縁端板２との対向部分（直接対
向している部分だけでなくその近傍部分も含め
る。）をおおい、大径部１３ｂは止めナツト８，
９の周囲をおおう。絶縁バリヤ１３は耐熱性があ
り量産化の可能な材質、例えばBMC（Bulk
Molding Compound）、エポキシ、シリコーン、
テフロンなどの樹脂もしくはゴムで形成する。
尚、絶縁端板２の金属ケース１およびベローズ５
との取付部分にはメタライズ部を形成する。 Embodiments of the present invention will be described below with reference to the drawings.
Reference numeral 1 denotes a cylindrical metal case with one end closed, and 2 an insulating end plate made of ceramic or the like attached to the open end of the metal case 1. The metal case 1 and the insulating end plate 2 form a vacuum container. Reference numeral 3 indicates a fixed electrode rod inserted into the closed end of the metal case 1, and reference numeral 4 indicates a movable electrode inserted loosely into a hole 2a provided at the center of the insulating end plate 2 and attached to the insulating end plate 2 via a bellows 5. Rods 6 and 7 are a fixed electrode and a movable electrode, respectively, which are attached to the tips of the fixed electrode rod 3 and the movable electrode rod 4 so as to be able to move toward and away from each other. Further, a threaded portion is provided at the outer end of the movable electrode rod 4, and fixing nuts 8 and 9 having a larger diameter than the movable electrode rod 4 are screwed into this threaded portion, and the movable side conductor 10 is inserted into the threaded portion. A connecting rod 11 is further screwed onto the threaded portion. 12 is a lead wire attached to the movable conductor 10. Reference numeral 13 denotes a cylindrical insulating barrier consisting of a small diameter part 13a and a large diameter part 13b. ), and the large diameter portion 13b is covered with a locking nut 8,
Cover around 9. The insulation barrier 13 is made of a heat-resistant material that can be mass-produced, such as BMC (Bulk
molding compound), epoxy, silicone,
It is made of resin such as Teflon or rubber.
In addition, the metal case 1 and bellows 5 of the insulating end plate 2
A metallized portion is formed on the attachment portion.
本実施例の真空しや断器は上記のように構成さ
れており、絶縁バリヤ１３の取付に際しては絶縁
バリヤ１３を可動電極棒４に奥深く挿通した後に
可動電極棒４の外端ねじ部に止めナツト８，９、
可動側導体１０および連結ロツド１１を取付け、
絶縁バリヤ１３を引出して小径部１３ａと大径部
１３ｂとの間の段部が止めナツト８の上に載置さ
れた状態にする。本実施例では可動電極棒４の絶
縁端板２との対向部分および可動電極棒４より径
が大きく電界の集中する止めナツト８，９を筒状
の絶縁バリヤ１３でおおつており、絶縁端板２と
可動電極棒４および止めナツト８，９との間の絶
縁沿面距離が大きくなり、金属ケース１と可動電
極棒４および止めナツト８，９との絶縁沿面距離
が大きくなる。又、絶縁バリヤ１３は投入、しや
断の操作時に可動電極棒４とベローズ５がこすれ
合うのを防止する。又、絶縁バリヤ１３は単に可
動電極棒４などに挿通するだけで良く、接着や加
熱収縮は必要でなく、設置が容易である。 The vacuum shield and disconnector of this embodiment is constructed as described above, and when installing the insulating barrier 13, the insulating barrier 13 is inserted deeply into the movable electrode rod 4 and then fixed to the threaded portion of the outer end of the movable electrode rod 4. Natsu 8, 9,
Install the movable conductor 10 and the connecting rod 11,
The insulating barrier 13 is pulled out so that the step between the small diameter part 13a and the large diameter part 13b rests on the locking nut 8. In this embodiment, a cylindrical insulating barrier 13 covers the portion of the movable electrode rod 4 facing the insulating end plate 2 and the locking nuts 8 and 9, which have a larger diameter than the movable electrode rod 4 and where the electric field concentrates. The insulation creepage distance between the metal case 1 and the movable electrode rod 4 and the locking nuts 8 and 9 increases, and the insulation creepage distance between the metal case 1 and the movable electrode rod 4 and the locking nuts 8 and 9 increases. Further, the insulating barrier 13 prevents the movable electrode rod 4 and the bellows 5 from rubbing against each other during closing and cutting operations. Furthermore, the insulating barrier 13 can be simply inserted into the movable electrode rod 4, etc., and there is no need for adhesion or heat shrinkage, making installation easy.
以上のように本考案においては、一端が閉塞さ
れた筒状の金属ケースの開口端に絶縁端板を取付
けた真空容器において、絶縁端板に遊挿した可動
電極棒の絶縁端板との対向部分および可動電極棒
に接続した接続部の可動電極棒より径の大きな接
続端部を筒状の絶縁バリヤでおおつており、可動
端板と可動電極棒およびその接続部の接続端部と
の間の絶縁沿面距離が大きくなり、金属ケースと
可動電極棒およびその接続部の接続端部との間の
絶縁沿面距離が大きくなる。このため、真空しや
断器としての外部沿面耐圧を大きくなり、小形で
しや断容量の大きな真空しや断器が得られる。
又、絶縁バリヤは操作時に可動電極棒とベローズ
がこすれ合うのを防止し、ベローズの損傷による
真空破壊を防止する。 As described above, in the present invention, in a vacuum vessel in which an insulated end plate is attached to the open end of a cylindrical metal case with one end closed, a movable electrode rod loosely inserted into the insulated end plate is placed opposite to the insulated end plate. A cylindrical insulating barrier covers the connection end of the connecting part connected to the movable electrode and the movable electrode with a cylindrical insulating barrier, and the connection end of the movable end plate and the movable electrode and its connection are covered with a cylindrical insulating barrier. The insulation creepage distance between the metal case and the movable electrode rod and the connecting end of the connecting portion thereof increases. For this reason, the external creeping withstand pressure as a vacuum shield and disconnector is increased, and a vacuum shield and disconnector which is small and has a large shielding capacity can be obtained.
The insulating barrier also prevents the movable electrode rod and the bellows from rubbing against each other during operation, and prevents vacuum breakdown due to damage to the bellows.
図は本考案に係る真空しや断器の半縦断正面
図。
１……金属ケース、２……絶縁端板、２ａ……
孔、３……固定電極棒、４……可動電極棒、５…
…ベローズ、６……固定電極、７……可動電極、
８，９……止めナツト、１３……絶縁バリヤ。
The figure is a semi-longitudinal front view of the vacuum cutter according to the present invention. 1...Metal case, 2...Insulating end plate, 2a...
Hole, 3... Fixed electrode bar, 4... Movable electrode bar, 5...
... bellows, 6 ... fixed electrode, 7 ... movable electrode,
8, 9...lock nut, 13...insulation barrier.
Claims (1)
絶縁端板を取付けて真空容器を形成し、金属ケー
スの閉塞端に固定電極棒を挿着するとともに絶縁
端板にベローズを介して可動電極棒を遊挿し、可
動電極棒には可動電極棒より径の大きな接続端部
を有する接続部を接続した真空しや断器におい
て、可動電極棒の絶縁端板との対向部分および前
記接続部の接続端部をおおう筒状絶縁バリヤを設
けたことを特徴とする真空しや断器。 A vacuum container is formed by attaching an insulating end plate to the open end of a cylindrical metal case with one end closed, and a fixed electrode rod is inserted into the closed end of the metal case, and a movable electrode is connected to the insulated end plate via a bellows. In a vacuum shield disconnector in which a rod is inserted loosely and a connection part having a connection end with a diameter larger than that of the movable electrode rod is connected to the movable electrode rod, the part of the movable electrode rod facing the insulated end plate and the part of the connection part A vacuum shield and disconnector characterized by having a cylindrical insulating barrier covering the connection end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618580U JPS6230757Y2 (en) | 1980-12-24 | 1980-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18618580U JPS6230757Y2 (en) | 1980-12-24 | 1980-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57107248U JPS57107248U (en) | 1982-07-02 |
| JPS6230757Y2 true JPS6230757Y2 (en) | 1987-08-07 |
Family
ID=29987908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18618580U Expired JPS6230757Y2 (en) | 1980-12-24 | 1980-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6230757Y2 (en) |
-
1980
- 1980-12-24 JP JP18618580U patent/JPS6230757Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57107248U (en) | 1982-07-02 |
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