JPH01313815A - Manufacture of lightening protection insulator - Google Patents
Manufacture of lightening protection insulatorInfo
- Publication number
- JPH01313815A JPH01313815A JP63144583A JP14458388A JPH01313815A JP H01313815 A JPH01313815 A JP H01313815A JP 63144583 A JP63144583 A JP 63144583A JP 14458388 A JP14458388 A JP 14458388A JP H01313815 A JPH01313815 A JP H01313815A
- Authority
- JP
- Japan
- Prior art keywords
- members
- lightning arrester
- covers
- heating
- inorganic glass
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 239000012212 insulator Substances 0.000 title abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 18
- 229910052573 porcelain Inorganic materials 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012784 inorganic fiber Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は避雷素子を内蔵した避雷碍子の製造方法に関し
、特にガラス封着を部分加熱によって簡単に実施できる
製造効率の優れた避雷碍子の製造方法に関するものであ
る。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for manufacturing a lightning arrester with a built-in lightning arrester element, and in particular to a method for manufacturing a lightning arrester with excellent production efficiency in which glass sealing can be easily performed by partial heating. It is about the method.
（従来の技術）
従来から、碍子に避雷機能を付加することにより、送電
線の把持機能を維持したまま雷直撃による故障事故を低
減する避雷碍子が使用されている。(Prior Art) Conventionally, lightning arrester insulators have been used that reduce failures caused by direct lightning strikes while maintaining the power transmission line gripping function by adding a lightning protection function to the insulator.
−例として、本出願人は特開昭５７−１６０５５５号公
報において、落雷時の過大電流から碍子自体を保護する
手段としてのＺｎＯ素子を、碍子内部に無機ガラスで一
体固着した避雷碍子およびその製造方法を開示している
。この避雷碍子は、ＺｎＯ素子周囲と碍子が無機ガラス
で一体化しているため、気密絶縁性が非常に優れている
特徴がある。- As an example, the present applicant has disclosed in Japanese Patent Application Laid-open No. 57-160555 a lightning arrester in which a ZnO element is integrally fixed inside the insulator with inorganic glass as a means of protecting the insulator itself from excessive current during a lightning strike, and its manufacture. The method is disclosed. This lightning arrester is characterized by extremely excellent airtight insulation properties because the ZnO element periphery and the insulator are integrated with inorganic glass.
（発明が解決しようとする課題）
しかしながら、上述した避雷碍子の製造方法では、碍子
全体を電気炉等の大型の均熱炉内に保持しつつ無機ガラ
スを流し込むため、製造効率が悪いとともに無機ガラス
で一体化した後に徐冷等の工程が必要であった。従って
、製造方法として封着に長時間を要するとともに大型の
炉が必要でありさらに一回の封着操作で製造可能な避雷
碍子の、個数は均熱炉の内容積に制限されるため効率的
な製造は不可能であった。(Problems to be Solved by the Invention) However, in the method for manufacturing lightning arrester insulators described above, inorganic glass is poured while the entire insulator is held in a large soaking furnace such as an electric furnace, which results in poor manufacturing efficiency and Steps such as slow cooling were required after integration. Therefore, the manufacturing method requires a long time for sealing and a large furnace, and the number of lightning arresters that can be manufactured in one sealing operation is limited to the internal volume of the soaking furnace, making it inefficient. production was impossible.
本発明の目的は上述した製造工程上の諸問題を解消して
、避雷機能および気密絶縁性を維持する避雷碍子を簡単
な設備で迅速に製造することができるとともに、所望の
場合に避雷素子の周囲雰囲気を自由に制御できる避雷碍
子の製造方法を提供しようとするものである。It is an object of the present invention to solve the above-mentioned problems in the manufacturing process, to quickly manufacture a lightning arrester that maintains lightning protection function and airtight insulation using simple equipment, and to make it possible to quickly manufacture a lightning arrester insulator that maintains lightning protection function and airtight insulation. The present invention aims to provide a method for manufacturing a lightning arrester that allows the surrounding atmosphere to be freely controlled.
（課題を解決するための手段）
本発明の避雷碍子の製造方法は、避雷素子を磁器内孔に
気密に設置する構造の避雷碍子の製造方法において、避
雷素子の上下の導電性の蓋と磁器との間に無機ガラスを
塗布介在させ、両者を押圧した後導電体を誘導加熱して
、無機ガラスを熔融固着することにより、上下の蓋と磁
器との間を気密に接合することを特徴とするものである
。(Means for Solving the Problems) A method for manufacturing a lightning arrester according to the present invention is a method for manufacturing a lightning arrester having a structure in which a lightning arrester is airtightly installed in a porcelain inner hole. The feature is that the upper and lower lids and the porcelain are airtightly joined by applying inorganic glass between them, pressing them together, heating the conductor by induction, and melting and fixing the inorganic glass. It is something to do.
（作 用）
上述した構成において、ＺｎＯ素子の上下の蓋部を導電
性材料により構成し、高周波誘導加熱を適用して蓋部を
誘導加熱しているため、部分的な加熱による蓋部分の封
着が可能となるとともに、ＺｎＯ素子の周囲雰囲気の調
整が可能となる。(Function) In the above-mentioned configuration, the upper and lower lids of the ZnO element are made of a conductive material, and the lids are induction-heated by applying high-frequency induction heating, so that the lid portions cannot be sealed by partial heating. At the same time, it becomes possible to adjust the atmosphere around the ZnO element.
（実施例）
第１図は本発明の避雷碍子の製造方法により製造した避
雷碍子の一例を模式的に示す部分断面図である。本実施
例では、碍管からなる磁器円筒１の磁器内孔部にＺｎＯ
を主成分とする円柱状の避雷素子２を気密状態に収納し
て避雷碍子を形成している。即ち、磁器円筒ｌの上端部
３−１及び下端部３−２をそれぞれ金属製の蓋材料４−
１．４−２と無機ガラス５−１．５−２を用いて気密に
封着している。また避雷素子２の側周と磁器円筒ｌの内
壁の間隙には、放圧時に発生する内圧上昇を緩和し、磁
器本体を防護する目的で、補強部材としてセラミック円
筒６及び無機繊維７を配置している。更に、避雷素子２
と上端部の蓋材４−１の間にはバネ性を有する導電材料
８を配することにより、避雷碍子に常時負荷される外部
応力を緩和する構造としている。(Example) FIG. 1 is a partial sectional view schematically showing an example of a lightning arrester manufactured by the method for manufacturing a lightning arrester insulator of the present invention. In this example, ZnO is applied to the inner hole of the porcelain cylinder 1 made of a porcelain tube.
A cylindrical lightning arrester element 2 whose main component is housed in an airtight state forms a lightning arrester. That is, the upper end part 3-1 and the lower end part 3-2 of the porcelain cylinder l are respectively covered with metal lid material 4-.
1.4-2 and inorganic glass 5-1.5-2 for airtight sealing. In addition, a ceramic cylinder 6 and inorganic fibers 7 are arranged as reinforcing members in the gap between the side circumference of the lightning arrester element 2 and the inner wall of the porcelain cylinder 1 in order to alleviate the increase in internal pressure that occurs during pressure release and to protect the porcelain body. ing. Furthermore, lightning protection element 2
By disposing a conductive material 8 having spring properties between the lid member 4-1 and the upper end portion, the structure is such that the external stress constantly applied to the lightning arrester is alleviated.
また、第２図は碍管からなる磁器円筒１の上下端部と導
電性セラミック蓋材料９−１．９−２をそれぞれ無機ガ
ラス５−１ 、５−２を用いて気密に封着した構造を模
式的に示す例である。FIG. 2 shows a structure in which the upper and lower ends of a porcelain cylinder 1 made of an insulator tube and a conductive ceramic lid material 9-1 and 9-2 are hermetically sealed using inorganic glasses 5-1 and 5-2, respectively. This is a schematic example.
いずれの構造とも、磁器円筒ｌの端部と金属あるいは導
電性セラミ、ツクよりなる導電性材料との間を無機ガラ
ス５−１ 、５−２を用いて気密に封着するために、そ
の接触面に種々の方法により無機ガラスを塗布する必要
がある。In either structure, inorganic glasses 5-1 and 5-2 are used to airtightly seal the end of the porcelain cylinder l and a conductive material made of metal, conductive ceramic, or tung. It is necessary to apply inorganic glass to the surface by various methods.
塗布の方法としては、従来から公知のガラス粉末を直接
介在させる方法、スプレーにより介在させる方法、ペー
スト状またはテープ状として介在させる方法を使用でき
る。その後、Ｊ：蓋４−１．９−１と下蓋４−２．９−
２とを両側から押圧した状態で導電体よりなる蓋を誘導
加熱して、無機ガラス５−１．５−２を熔融することに
より、第１図においては上蓋４−１と磁器上端面３−１
および下蓋４−２と磁器下端面３−２とを気密に封着し
ている。As a method of application, conventionally known methods such as directly applying glass powder, applying by spraying, and applying in the form of a paste or tape can be used. After that, J: Lid 4-1.9-1 and lower lid 4-2.9-
2 is pressed from both sides, the lid made of a conductor is heated by induction to melt the inorganic glass 5-1, 5-2, and as shown in FIG. 1
The lower lid 4-2 and the lower end surface 3-2 of the porcelain are hermetically sealed.
本発明の加熱の方法としては上蓋および下蓋が導電性の
材料からできているため、高周波誘導加熱により上蓋お
よび下蓋を加熱する方法をとっている。高周波誘導加熱
による場合は、大型の加熱設備が必要ないとともに、蓋
体のみの部分加熱ができ、さらに避雷素子２の周囲気体
の内圧および雰囲気を自由に調整することができる。す
なわち、ｔ−ｉｏ気圧の好ましい内圧にできるとともに
、高絶縁性のガスであるＳＦ４等を封入することも可能
である。またこの場合は、加熱部分を局在化できるため
、補強部材としてＰＲＰ製のものを使用できる。なお、
上述した製造法において、予じめ酸化雰囲気で８００〜
１０００℃の温度で加熱して酸化被膜を表面に形成した
金属製の蓋を使用するとより好ましいともに、蓋の接合
部分に予じめ無機ガラスを塗布し焼成した蓋を使用する
ことがより好ましい。As the heating method of the present invention, since the upper lid and the lower lid are made of a conductive material, a method is adopted in which the upper lid and the lower lid are heated by high frequency induction heating. When high-frequency induction heating is used, large-scale heating equipment is not required, only the lid can be partially heated, and the internal pressure and atmosphere of the gas surrounding the lightning arrester element 2 can be freely adjusted. In other words, it is possible to maintain a preferable internal pressure of t-io atmospheric pressure, and also to fill in a highly insulating gas such as SF4. Further, in this case, since the heated portion can be localized, a PRP material can be used as the reinforcing member. In addition,
In the above-mentioned manufacturing method, 800~
It is more preferable to use a metal lid on which an oxide film is formed on the surface by heating at a temperature of 1000° C., and it is more preferable to use a lid whose joint portion is coated with inorganic glass in advance and fired.
第１図に示す避雷碍子において蓋部と磁器端部とのガラ
スによる封着構造および構造条件を種々変えて、第１表
に示す本発明の試料Ｎα１〜６を準備した。Samples Nα1 to Nα6 of the present invention shown in Table 1 were prepared by varying the glass sealing structure and structural conditions between the lid and the porcelain end of the lightning arrester shown in FIG. 1.
第１表に示すとおり、各種封着材料、補強材が使用でき
るとともにＺｎＯ素子周囲の雰囲気調整が可能であり、
これらはいずれも高周波誘導加熱により導電体よりなる
蓋体の加熱により短時間で封着できる。As shown in Table 1, various sealing materials and reinforcing materials can be used, and the atmosphere around the ZnO element can be adjusted.
All of these can be sealed in a short time by heating the lid made of a conductor using high-frequency induction heating.
本発明は上述した実施例にのみ限定されるものではなく
、幾多の変形、変更が可能である。例えば上述した実施
例では、上蓋および下蓋と磁器円筒の接着端面をテーパ
状としたが、第２図に示す形状でも良いことはいうまで
もない。また、本発明は懸垂型の避雷碍子だけでなく、
他の形状の碍子にも適用できることは明らかである。The present invention is not limited only to the embodiments described above, and numerous modifications and changes are possible. For example, in the above-described embodiment, the adhesive end surfaces of the upper and lower lids and the porcelain cylinder were tapered, but it goes without saying that the shapes shown in FIG. 2 may also be used. In addition, the present invention is applicable not only to suspended type lightning arrester insulators, but also to
It is obvious that the present invention can also be applied to other shapes of insulators.
（発明の効果）
以上の説明から明らかなように、本発明の避雷碍子の製
造方法によれば、ＺｎＯ素子上下部の導電性の蓋のみを
碍子本体と無機ガラスで誘導加熱による部分的な加熱で
気密封着することにより、放圧時にＺｎＯ素子を収納す
る蓋に破壊位置を局在化でき、その結果碍子本体へのク
ラックの伸展を防止して、異常過電流短絡時の放圧特性
を向上することができる。また、加熱装置の小型化が達
成できるとともに、避雷素子の周囲雰囲気を所望のもの
にすることができる。(Effects of the Invention) As is clear from the above description, according to the method for manufacturing a lightning arrester of the present invention, only the conductive lids at the top and bottom of the ZnO element are partially heated by induction heating using the insulator body and inorganic glass. By airtightly sealing the insulator, it is possible to localize the fracture location on the lid housing the ZnO element during pressure release, thereby preventing cracks from extending to the insulator body and improving the pressure release characteristics in the event of an abnormal overcurrent short circuit. can be improved. Further, the heating device can be made smaller, and the atmosphere around the lightning arrester element can be made into a desired one.
第１図および第２図は本発明の方法により製造した避雷
碍子の異なる例を模式的に示す部分断面説明図である。
１・・・磁器円筒 ２・・・避雷素子３−１・
・・磁器円筒上端 ３−２・・・磁器円筒下端４−１
．４−２・・・金属蓋 ５−Ｌ５−２・・・無機ガ
ラス６・・・セラミック円筒 ７・・・無機繊維８・
・・導電材料
９−１．９−２・・・導電性セラミック第１図
第２図
’！−２４９千生ｔ−７ミ７７FIGS. 1 and 2 are explanatory partial cross-sectional views schematically showing different examples of lightning arrester insulators manufactured by the method of the present invention. 1... Porcelain cylinder 2... Lightning arrester element 3-1.
... Porcelain cylinder upper end 3-2 ... Porcelain cylinder lower end 4-1
．． 4-2...Metal lid 5-L5-2...Inorganic glass 6...Ceramic cylinder 7...Inorganic fiber 8.
...Conductive material 9-1.9-2...Conductive ceramic Figure 1 Figure 2'! -249 Chisei t-7mi77
Claims (1)
子の製造方法において、避雷素子の上下の導電性の蓋と
磁器との間に無機ガラスを塗布介在させ、両者を押圧し
た後導電体を誘導加熱して、無機ガラスを熔融固着する
ことにより、上下の蓋と磁器との間を気密に接合するこ
とを特徴とする避雷碍子の製造方法。1. In a method for manufacturing a lightning arrester in which a lightning arrester is airtightly installed in a porcelain inner hole, inorganic glass is coated and interposed between the upper and lower conductive covers of the lightning arrester and the porcelain, and after pressing both, the conductive A method for manufacturing a lightning arrester, characterized in that the upper and lower lids and the porcelain are airtightly joined by induction heating the body and melting and fixing the inorganic glass.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63144583A JPH01313815A (en) | 1988-06-14 | 1988-06-14 | Manufacture of lightening protection insulator |
| IN227/CAL/89A IN171826B (en) | 1988-03-23 | 1989-03-21 | |
| EP92114053A EP0518386B1 (en) | 1988-03-23 | 1989-03-22 | Lightning arrester insulator and method of making the same |
| EP89302884A EP0334647B1 (en) | 1988-03-23 | 1989-03-22 | Lightning arrestor insulator and method of producing the same |
| CA000594425A CA1331781C (en) | 1988-03-23 | 1989-03-22 | Lightening arrestor insulator and method of producing the same |
| DE68922909T DE68922909T2 (en) | 1988-03-23 | 1989-03-22 | Lightning arrester insulator and manufacturing process therefor. |
| DE89302884T DE68908928T2 (en) | 1988-03-23 | 1989-03-22 | Insulator for surge arresters and its manufacturing process. |
| KR1019890003680A KR970004561B1 (en) | 1988-03-23 | 1989-03-23 | Lightening arrestor insulator and method of producing the same |
| CN89102584A CN1037472C (en) | 1988-03-23 | 1989-03-23 | Lightening arrestor insulator and method of producing same |
| US07/561,234 US5012383A (en) | 1988-03-23 | 1990-07-27 | Lightning arrestor insulator and method of producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63144583A JPH01313815A (en) | 1988-06-14 | 1988-06-14 | Manufacture of lightening protection insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01313815A true JPH01313815A (en) | 1989-12-19 |
| JPH0519245B2 JPH0519245B2 (en) | 1993-03-16 |
Family
ID=15365497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63144583A Granted JPH01313815A (en) | 1988-03-23 | 1988-06-14 | Manufacture of lightening protection insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01313815A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579819U (en) * | 1992-03-26 | 1993-10-29 | 日本碍子株式会社 | Lightning protection insulator lid mounting structure |
| CN106847431A (en) * | 2017-02-13 | 2017-06-13 | 广州中光电子科技有限公司 | A kind of lightning protection insulator departed from failure with aging identification function |
-
1988
- 1988-06-14 JP JP63144583A patent/JPH01313815A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579819U (en) * | 1992-03-26 | 1993-10-29 | 日本碍子株式会社 | Lightning protection insulator lid mounting structure |
| CN106847431A (en) * | 2017-02-13 | 2017-06-13 | 广州中光电子科技有限公司 | A kind of lightning protection insulator departed from failure with aging identification function |
| CN106847431B (en) * | 2017-02-13 | 2018-06-22 | 广州中光电气科技有限公司 | A kind of lightning protection insulator being detached from failure with aging identification function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0519245B2 (en) | 1993-03-16 |
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