JP2603978B2 - Insulation spacer - Google Patents
Insulation spacerInfo
- Publication number
- JP2603978B2 JP2603978B2 JP1988A JP1988A JP2603978B2 JP 2603978 B2 JP2603978 B2 JP 2603978B2 JP 1988 A JP1988 A JP 1988A JP 1988 A JP1988 A JP 1988A JP 2603978 B2 JP2603978 B2 JP 2603978B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating spacer
- ground
- shields
- lid
- connecting plate
- 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 - Lifetime
Links
Landscapes
- Installation Of Bus-Bars (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は接地シールドを改良した絶縁スペーサに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to an insulating spacer having an improved ground shield.
（従来の技術） 一般に、ガス絶縁開閉装置や管路気中母線には高電圧
導体を接地容器内に絶縁支持する絶縁スペーサが用いら
れている。(Prior Art) Generally, an insulating spacer for insulatingly supporting a high-voltage conductor in a grounded vessel is used for a gas insulated switchgear or a pipeline air bus.
そして、絶縁スペーサの構成は例えば特開昭61−1586
27号等で知られている。The structure of the insulating spacer is described in, for example,
Known as No. 27.
ところで、絶縁スペーサを構成する絶縁スペーサ本体
はエポキシ樹脂等の熱硬化性樹脂からなるため、絶縁ス
ペーサ本体内に埋込まれた円環状の接地シールドには収
縮量に依存した応力が発生する。この応力は大口径の絶
縁スペーサになる程大きくなる。Incidentally, since the insulating spacer body constituting the insulating spacer is made of a thermosetting resin such as epoxy resin, a stress depending on the amount of shrinkage is generated in the annular ground shield embedded in the insulating spacer body. This stress increases as the diameter of the insulating spacer increases.
そこで、第３図に示す如く接地シールドの分割にて応
力集中緩和が図られている。ここで、第３図において、
１は絶縁スペーサ本体であり、この絶縁スペーサ本体１
の外周に金属フランジ２が設けられている。そして、こ
の金属フランジ２の表裏には図示しない管路気中母線等
の容器が接続されている。また、絶縁スペーサ本体１内
には３分割された接地シールド3A,3B及び3Cが埋込まれ
ている。さらに、接地シール3Aの面端部は第４図及び第
５図に示される如き構成である。即ち、接地シールド3A
の一端部は絶縁スペーサ本体１に埋込まれた金具４を介
して金属フランジ２に着脱自在に取付けた蓋５に接続さ
れている。他方、接地シールド3Aの他端部は絶縁スペー
サ本体１に埋込まれた金具６を介して先端に抵抗体７を
固着し金属フランジ２に着脱自在に取付けた蓋８に接続
されている。尚、接地シールド3B及び3Cの両端部につい
ても同様な構成である。Therefore, as shown in FIG. 3, stress concentration is alleviated by dividing the ground shield. Here, in FIG.
Reference numeral 1 denotes an insulating spacer body.
Is provided with a metal flange 2 on the outer periphery. A container (not shown) such as a pipeline air bus is connected to the front and back of the metal flange 2. In addition, three divided ground shields 3A, 3B and 3C are embedded in the insulating spacer body 1. Further, the surface end of the grounding seal 3A has a structure as shown in FIGS. That is, ground shield 3A
Is connected to a lid 5 detachably attached to the metal flange 2 via a metal fitting 4 embedded in the insulating spacer body 1. On the other hand, the other end of the ground shield 3 </ b> A is connected to a lid 8, which is fixedly attached to a distal end of a resistor 7 via a metal fitting 6 embedded in the insulating spacer body 1 and detachably attached to the metal flange 2. The same configuration is applied to both ends of the ground shields 3B and 3C.
ところで、このように構成された絶縁スペーサにあっ
ては接地シールドの分割数に応じて蓋5,8を金属フラン
ジ２の外周部に取付ける必要がある。このため、金属フ
ランジ２に蓋5,8取付用の孔を加工する必要があり制作
時の工程数が増加する欠点を有する。また、蓋5,8の部
品点数も増加するとともに蓋5,8と金属フランジ２間の
水密性が低下し、蓋5,8部から雨水等が侵入し金具4,6等
を腐食し接地不良や雨水の結露による絶縁スペーサ本体
１の割れを誘発する虞れがある。By the way, in the insulating spacer configured as described above, it is necessary to attach the lids 5 and 8 to the outer peripheral portion of the metal flange 2 according to the number of divisions of the ground shield. For this reason, it is necessary to form holes for attaching the lids 5 and 8 in the metal flange 2, and there is a disadvantage that the number of manufacturing steps increases. In addition, the number of parts of the lids 5 and 8 increases, and the watertightness between the lids 5 and 8 and the metal flange 2 decreases, rainwater or the like intrudes from the lids 5 and 8 to corrode the metal fittings 4 and 6 and a ground failure. There is a possibility that the insulation spacer main body 1 may be cracked due to condensation of rainwater or rainwater.
（発明が解決しようとする問題点） このように従来の絶縁スペーサの如く単に接地シール
ドを分割して接地シールドへの応力集中緩和を図った場
合、水密性低下により絶縁スペーサの信頼性が低下す
る。(Problems to be Solved by the Invention) As described above, when the grounding shield is simply divided and the stress concentration on the grounding shield is eased as in the conventional insulating spacer, the reliability of the insulating spacer is reduced due to the decrease in watertightness. .
本発明は上記問題点を除去するために成されたもの
で、信頼性を低下することなく接地シールドの応力集中
緩和を図った絶縁スペーサを提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above problems, and has as its object to provide an insulating spacer in which stress concentration of a ground shield is reduced without lowering reliability.
（問題点を解決するための手段） 上記目的を達成するために、本発明においては、接地
シールドを複数に分割し、この分割された全ての接地シ
ールド間を連結板にて機械的に移動可能にかつ電気的に
接続し、連続板に蓋及び抵抗体付蓋を少なくとも夫々１
個接続している。(Means for Solving the Problems) In order to achieve the above object, in the present invention, the grounding shield is divided into a plurality of parts, and all the divided grounding shields can be mechanically moved by a connecting plate. And a lid and a lid with a resistor on the continuous plate at least one each.
Connected.
（作用） このように構成することにより、接地シールドへの応
力集中が緩和され、水密部を低減することによる雨水侵
入が防止され、雨水結露により破損する虞れの少ない信
頼性の高い絶縁スペーサを提供することができる。(Operation) With this configuration, stress concentration on the ground shield is reduced, rainwater intrusion due to reduction of the watertight portion is prevented, and a highly reliable insulating spacer which is less likely to be damaged by rainwater condensation is provided. Can be provided.
（実施例） 以下本発明の一実施例を第１図及び第２図を参照して
説明する。つまり、絶縁スペーサ本体１の周端部即ち金
属フランジ２近傍には同一円周上に例えば４分割した接
地シールド9A,9B,9C,9Dを円環状に埋込んでいる。この
接地シールド9A,9B,9C,9Dは、導電性とし好ましくはエ
ポキシ樹脂等で絶縁スペーサ本体１と同等の線膨張係数
を有するものを採用する。Embodiment An embodiment of the present invention will be described below with reference to FIG. 1 and FIG. That is, for example, the ground shields 9A, 9B, 9C, 9D divided into four parts on the same circumference are annularly embedded in the peripheral end portion of the insulating spacer body 1, that is, in the vicinity of the metal flange 2. The grounding shields 9A, 9B, 9C, 9D are made of a conductive material, preferably an epoxy resin or the like, having a linear expansion coefficient equivalent to that of the insulating spacer body 1.
また、各接地シールド9A,9B,9C,9D間は夫々連結板10
にて接続する。即ち、隣接する接地シールド9A,9B,9C,9
Dの端部間が図示しないボルト、ナットを用いて連結板1
0で接続される。この接続に際し、接地シールド9A,9B,9
C,9Dと連結板10間に導電性部材を間挿してもよい。尚、
連結板10、ボルト、ナットも絶縁スペーサ本体１内に埋
込んでいる。In addition, a connection plate 10 is provided between the ground shields 9A, 9B, 9C, and 9D.
Connect with. That is, the adjacent ground shields 9A, 9B, 9C, 9
Connect the connecting plate 1 using bolts and nuts (not shown) between the ends of D.
Connected with 0. For this connection, ground shields 9A, 9B, 9
A conductive member may be inserted between C and 9D and the connecting plate 10. still,
The connecting plate 10, bolts and nuts are also embedded in the insulating spacer body 1.
さらに、連結板10は第２図に示す如くボルト外径より
特に中心方向に大きい径の孔10aを施している。つま
り、絶縁スペーサ本体１の収縮時において、接地シール
ド9A,9B,9C,9Dと連結板10は相対的に移動可能である。
換言すれば、接地シールド9A,9B,9C,9Dが絶縁スペーサ
本体１の収縮に伴い自由に絶縁スペーサの中心方向に移
動できるので、接地シールド9A,9B,9C,9Dに応力集中が
発生することがない。Further, as shown in FIG. 2, the connecting plate 10 has a hole 10a having a diameter larger than the outer diameter of the bolt particularly in the center direction. That is, when the insulating spacer body 1 is contracted, the ground shields 9A, 9B, 9C, 9D and the connecting plate 10 are relatively movable.
In other words, since the grounding shields 9A, 9B, 9C, 9D can freely move toward the center of the insulating spacer as the insulating spacer body 1 contracts, stress concentration occurs on the grounding shields 9A, 9B, 9C, 9D. There is no.
そして、連結板10は導電性の樹脂または金属で構成し
ている。これにより、全ての接地シールド9A,9B,9C,9D
は電気的にも接続される。The connecting plate 10 is made of a conductive resin or metal. As a result, all ground shields 9A, 9B, 9C, 9D
Is also electrically connected.
また、連結板10には絶縁スペーサ本体１の外方に突出
する金具11を固着している。A metal fitting 11 protruding outward from the insulating spacer body 1 is fixed to the connecting plate 10.
この金具11には第４図及び第５図に示した蓋及び抵抗
体付蓋が少なくとも１個夫々接続される。At least one of the lids and the lids with resistors shown in FIGS. 4 and 5 is connected to the metal fitting 11.
次に本実施例の構成における作用効果を説明する。本
実施例においては、接地シールド9A,9B,9C,9Dを４分割
しかつ各接地シールド9A,9B,9C,9D間を連結板10を介し
て移動可能に接続したので、絶縁スペーサ本体１の収縮
時に接地シールド9A,9B,9C,9Dに応力集中が発生する虞
れがない。これにより、接地シールド9A,9B,9C,9Dの変
形及びその近傍での電界の乱れが防止され、シールドと
しての信頼性が向上する。Next, the operation and effect of the configuration of the present embodiment will be described. In this embodiment, the grounding shields 9A, 9B, 9C, and 9D are divided into four parts, and the grounding shields 9A, 9B, 9C, and 9D are movably connected via the connecting plate 10. There is no fear that stress concentration will occur on the ground shields 9A, 9B, 9C, 9D during contraction. As a result, deformation of the ground shields 9A, 9B, 9C, 9D and disturbance of the electric field in the vicinity thereof are prevented, and the reliability as the shield is improved.
また、連結板10を導電性部材で構成したので、全ての
接地シールド9A,9B,9C,9Dが電気的に接続される。この
ため、接地シールド9A,9B,9C,9Dに接続される蓋及び低
抗体付蓋は少なくとも１個夫々設ければよい。よって、
蓋取付用の孔を金属フランジに加工する工程数が大幅に
低減される。さらに、蓋取付部数低減により水密部が少
なくなり、蓋取付部からの雨水等の浸入により金具11を
腐食し接地不良や雨水の結露による絶縁スペーサ本体１
の割れが誘発されるのを防止することができる。Further, since the connecting plate 10 is formed of a conductive member, all the ground shields 9A, 9B, 9C, 9D are electrically connected. Therefore, it is sufficient to provide at least one lid and one lid with low antibody connected to the ground shields 9A, 9B, 9C, 9D. Therefore,
The number of steps for forming the lid mounting hole in the metal flange is greatly reduced. In addition, the number of watertight portions is reduced by reducing the number of lid attachment portions, and the metal fittings 11 are corroded by infiltration of rainwater or the like from the lid attachment portions, and the insulating spacer body 1 due to poor grounding or condensation of rainwater.
This can prevent the cracks from being induced.
尚、本実施例においては、三相用の絶縁スペーサにつ
いて説明したが、これに限定されることなく本技術を単
相用の絶縁スペーサに適用できることは言うまでもな
い。In the present embodiment, the three-phase insulating spacer has been described. However, it is needless to say that the present technology can be applied to a single-phase insulating spacer without being limited to this.
以上説明したように、本発明においては、接地シール
ドを複数に分割し、この分割された全ての接地シールド
間を連結板にて機械的に移動可能にかつ電気的に接続
し、連結板に蓋及び抵抗体付蓋を少なくとも夫々１個接
続したので、水密部を低減することができこれにより雨
水浸入等による信頼性を低下させることなく接地シール
ドの応力集中緩和を図った絶縁スペーサを提供すること
ができる。As described above, in the present invention, the ground shield is divided into a plurality of parts, all of the divided ground shields are mechanically movable and electrically connected by the connecting plate, and the lid is connected to the connecting plate. Further, since at least one lid with a resistor is connected, a watertight portion can be reduced, thereby providing an insulating spacer for reducing stress concentration of a ground shield without reducing reliability due to rainwater intrusion or the like. Can be.
第１図は本発明の一実施例を示す絶縁スペーサの平面
図、第２図は第１図に示す絶縁スペーサの連結板接続部
の要部平面図、第３図は従来の絶縁スペーサを示す平面
図、第４図は第３図に示す絶縁スペーサのIV−IV矢視断
面図、第５図は第３図に示す絶縁スペーサのＶ−Ｖ矢視
断面図である。 １……絶縁スペーサ本体、２……金属フランジ、 3A,3B,3C……接地シールド、4,6……金具、 5,8……蓋、７……抵抗体、 9A,9B,9C,9D……接地シールド、10……連結板、 10a……孔、11……金具。FIG. 1 is a plan view of an insulating spacer showing one embodiment of the present invention, FIG. 2 is a plan view of a main part of a connecting plate connecting portion of the insulating spacer shown in FIG. 1, and FIG. 3 shows a conventional insulating spacer. FIG. 4 is a cross-sectional view of the insulating spacer shown in FIG. 3 taken along the line IV-IV. FIG. 5 is a cross-sectional view of the insulating spacer shown in FIG. 1 ... insulation spacer body, 2 ... metal flange, 3A, 3B, 3C ... ground shield, 4, 6 ... metal fittings, 5,8 ... lid, 7 ... resistor, 9A, 9B, 9C, 9D … Ground shield, 10… Connection plate, 10a… Hole, 11… Mounting.
Claims (1)
設け前記絶縁スペーサ本体内に円環状に接地シールドを
埋込んでなる絶縁スペーサにおいて、前記接地シールド
を複数に分割し、この分割された全ての接地シールド間
を連結板にて機械的に移動可能にかつ電気的に接続し、
前記連続板に接続される蓋及び抵抗体的蓋を少なくとも
夫々１個前記金属フランジに着脱自在に取付けてなる絶
縁スペーサ。In an insulating spacer having a metal flange provided on an outer periphery of an insulating spacer body and a ground shield embedded in the insulating spacer body in a ring shape, the ground shield is divided into a plurality of parts. Mechanically movable and electrically connected between the ground shields with a connecting plate,
An insulating spacer comprising at least one of a lid connected to the continuous plate and a resistor-like lid detachably attached to the metal flange.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988A JP2603978B2 (en) | 1988-01-04 | 1988-01-04 | Insulation spacer |
| CA000587278A CA1291409C (en) | 1988-01-04 | 1988-12-29 | Electroconductive thermoplastic resin molded product |
| CA000587471A CA1296781C (en) | 1988-01-04 | 1989-01-04 | Arrangement for removable connection between substrates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988A JP2603978B2 (en) | 1988-01-04 | 1988-01-04 | Insulation spacer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01177814A JPH01177814A (en) | 1989-07-14 |
| JP2603978B2 true JP2603978B2 (en) | 1997-04-23 |
Family
ID=11462695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988A Expired - Lifetime JP2603978B2 (en) | 1988-01-04 | 1988-01-04 | Insulation spacer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2603978B2 (en) |
| CA (1) | CA1296781C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0845844B1 (en) * | 1996-11-29 | 2003-05-02 | Siemens Aktiengesellschaft | Gas-insulated busway with an axially fixed, disc-shaped supporting insulator |
-
1988
- 1988-01-04 JP JP1988A patent/JP2603978B2/en not_active Expired - Lifetime
-
1989
- 1989-01-04 CA CA000587471A patent/CA1296781C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA1296781C (en) | 1992-03-03 |
| JPH01177814A (en) | 1989-07-14 |
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