JPS6321076Y2 - - Google Patents
Info
- Publication number
- JPS6321076Y2 JPS6321076Y2 JP2191179U JP2191179U JPS6321076Y2 JP S6321076 Y2 JPS6321076 Y2 JP S6321076Y2 JP 2191179 U JP2191179 U JP 2191179U JP 2191179 U JP2191179 U JP 2191179U JP S6321076 Y2 JPS6321076 Y2 JP S6321076Y2
- Authority
- JP
- Japan
- Prior art keywords
- bushing
- insulator
- ring
- organic insulating
- flange
- 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
- 239000012212 insulator Substances 0.000 claims description 13
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Insulators (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案はガス封入形開閉器や真空遮断器など
の密封形開閉器の改良に関するものである。[Detailed description of the invention] [Field of industrial application] This invention relates to the improvement of sealed switches such as gas-filled switches and vacuum circuit breakers.
現在、大容量柱上開閉器として第１図に示すよ
うなガス封入形開閉器が盛んに使われている。
At present, gas-filled switches as shown in Fig. 1 are widely used as large-capacity pole-mounted switches.
この柱上開閉器の口出し線取付部の構造は、密
封容器１にＯリング等のガスケツト２を介して碍
子（ブツシング）３を取付け、この碍子３との接
触面にＯリング４を有するフランジ５を設け、且
つ口出し線６を連結した電極支持スタツド７を口
出し線６を碍子３に挿通し、口出し線６とスタツ
ド７の口出し線接続部７ａを有機絶縁剤８（合成
樹脂）で固めてスタツド７及び口出し線６を碍子
に固定すると共に密封性が得られるようにしてい
る。 The structure of the lead wire attachment part of this pole-mounted switch is such that an insulator (butting) 3 is attached to a sealed container 1 via a gasket 2 such as an O-ring, and a flange 5 having an O-ring 4 on the contact surface with the insulator 3 is attached. The electrode support stud 7 with which the lead wire 6 is connected is inserted into the insulator 3, and the lead wire connecting portion 7a between the lead wire 6 and the stud 7 is hardened with an organic insulating agent 8 (synthetic resin) to form the stud. 7 and the lead wire 6 are fixed to the insulator, and sealing performance is obtained.
しかし、この構造は、製作初期においては充分
な密封性を有するが、有機絶縁剤は経年変化（硬
化）し、且つその引張り強度が余り大きくないの
で、Ｏリング４の反撥力や、開閉時の振動などに
よつて、ひび割れが生じ、結果的に密封性が経年
低下する欠点がある。 However, although this structure has sufficient sealing performance at the initial stage of manufacture, the organic insulating material changes over time (hardens) and its tensile strength is not very large, so the repulsive force of the O-ring 4 and the It has the disadvantage that cracks occur due to vibrations and as a result, the sealing performance deteriorates over time.
この考案はこの欠点を除去するためになされた
ものであつてＯリングの反撥力が全てスタツド７
の軸方向に加わらないように碍子３の外周面に設
け、Ｏリングの圧縮による密封性を減ずることな
く、有機絶縁剤にＯリングの反撥力が加わらない
構造として、長年月密封性の保証が得られるよう
にしたものである。
This invention was made to eliminate this drawback, and the repulsive force of the O-ring was completely absorbed by the stud 7.
It is installed on the outer circumferential surface of the insulator 3 so as not to apply force in the axial direction of the insulator, and the structure ensures that the repulsive force of the O-ring is not applied to the organic insulating material without reducing the sealing performance due to compression of the O-ring, ensuring sealing performance for many years. It was made so that it could be obtained.
以下第２図に示す実施例について説明すれば次
の通りである。
The embodiment shown in FIG. 2 will be described below.
図において、１はガスケツト（Ｏリング）２を
介して碍子３を取付けた密封容器で、従来のもの
と同様口出し線６を接続部７ａにかしめ、フラン
ジ５′を有する電極支持スタツド７′を碍子３の中
心孔に有機絶縁剤８で固定されている。 In the figure, reference numeral 1 denotes a sealed container to which an insulator 3 is attached via a gasket (O-ring) 2. As in the conventional case, a lead wire 6 is caulked to a connecting part 7a, and an electrode support stud 7' having a flange 5' is attached to the insulator. It is fixed in the center hole of 3 with an organic insulating material 8.
碍子３の内側端部外周面３ａは、取付精度を高
めるため、研磨仕上が施されている。そしてこの
外周面３ａと対向するようにフランジ５′には突
条９が設けられていて、突条９と外周面３ａとの
間に形成される空隙にＯリング１０が嵌め込まれ
ている。 The outer circumferential surface 3a of the inner end of the insulator 3 is polished to improve mounting accuracy. A protrusion 9 is provided on the flange 5' so as to face the outer circumferential surface 3a, and an O-ring 10 is fitted into the gap formed between the protrusion 9 and the outer circumferential surface 3a.
以上説明した構造によれば、Ｏリング１０によ
る軸方向の力はスタツド７′及び有機絶縁剤８に
は殆んど加わらないので、有機絶縁剤８のひび割
れを促進することがなく、しかもＯリング１０に
よる密封性は永く保持されるため、従来のように
有機絶縁剤のひび割れから雨水等が浸入し、気密
性劣化による開閉器の開閉性能が劣化することが
ない。しかも、フランジ５′に突条９を設け、碍
子３との嵌合構造であるため、スタツド７が振動
その他により偏心することがないので、電極の接
触不良を生ずることがないなどの特長があり、実
用上密封形開閉器の構造として好適なもである。
According to the structure explained above, the axial force by the O-ring 10 is hardly applied to the stud 7' and the organic insulating material 8, so cracking of the organic insulating material 8 is not promoted, and furthermore, the O-ring Since the sealing performance according to No. 10 is maintained for a long time, the opening/closing performance of the switch does not deteriorate due to deterioration of airtightness due to rainwater etc. infiltrating through cracks in the organic insulating material as in the conventional case. Moreover, since the flange 5' is provided with a protrusion 9 and is structured to fit with the insulator 3, the stud 7 will not become eccentric due to vibration or other factors, so there will be no contact failure between the electrodes. This is a suitable structure for a practically sealed switch.
なお碍子３の中心口内面に刻目を入れて有機絶
縁剤との剥離を少くするようにすれば更に有効で
ある。 It is more effective to make a notch on the inner surface of the center opening of the insulator 3 to reduce peeling from the organic insulating material.
第１図は従来の密封形開閉器の一部を切欠した
側面図、第２図はこの考案の実施例の拡大断面図
である。
１……密封容器、２及び１０……Ｏリング、３
……碍子（ブツシング）、３ａ……外周面、５′…
…フランジ、６……口出し線、７……電極支持ス
タツド、８……有機絶縁剤、９……突条。
FIG. 1 is a partially cutaway side view of a conventional sealed switch, and FIG. 2 is an enlarged sectional view of an embodiment of this invention. 1...Sealed container, 2 and 10...O ring, 3
...Insulator (butssing), 3a...Outer peripheral surface, 5'...
... flange, 6 ... lead wire, 7 ... electrode support stud, 8 ... organic insulating material, 9 ... protrusion.
Claims (1)
線６を、有機絶縁剤８により碍子等のブツシング
３の中心孔に固着した密封形開閉器において、前
記電極支持スタツドにブツシング３の端面と接す
るフランジ５′を設け、このフランジの周縁にブ
ツシング３と嵌合する突条９を設け、この突条９
とブツシング周側面との間にＯリング１０を設け
るようにしたことを特徴とする密封形開閉器。 In a sealed switch in which a lead wire 6 with an electrode support stud 7' attached to the end is fixed to the center hole of a bushing 3 made of an insulator or the like with an organic insulating agent 8, a flange in contact with the end surface of the bushing 3 is attached to the electrode support stud. 5', and a protrusion 9 that fits with the bushing 3 is provided on the periphery of this flange, and this protrusion 9
A sealed switch characterized in that an O-ring 10 is provided between the bushing and the circumferential surface of the bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191179U JPS6321076Y2 (en) | 1979-02-23 | 1979-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191179U JPS6321076Y2 (en) | 1979-02-23 | 1979-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55123159U JPS55123159U (en) | 1980-09-01 |
| JPS6321076Y2 true JPS6321076Y2 (en) | 1988-06-10 |
Family
ID=28855685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191179U Expired JPS6321076Y2 (en) | 1979-02-23 | 1979-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321076Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6087117U (en) * | 1983-11-15 | 1985-06-15 | エナジーサポート株式会社 | Structure of bushing |
| JPH036976Y2 (en) * | 1984-10-22 | 1991-02-21 | ||
| JPH0454660Y2 (en) * | 1985-12-18 | 1992-12-22 |
-
1979
- 1979-02-23 JP JP2191179U patent/JPS6321076Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55123159U (en) | 1980-09-01 |
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