JPS63313806A - Lightning arrester - Google Patents
Lightning arresterInfo
- Publication number
- JPS63313806A JPS63313806A JP15054787A JP15054787A JPS63313806A JP S63313806 A JPS63313806 A JP S63313806A JP 15054787 A JP15054787 A JP 15054787A JP 15054787 A JP15054787 A JP 15054787A JP S63313806 A JPS63313806 A JP S63313806A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- tube
- lightning arrester
- insulator tube
- sealing
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims description 64
- 239000011810 insulating material Substances 0.000 claims description 10
- 239000002654 heat shrinkable material Substances 0.000 claims description 6
- 229920006037 cross link polymer Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 13
- 239000000565 sealant Substances 0.000 description 12
- 230000001681 protective effect Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- -1 electrodes Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は碍管内への雨水などの水分の侵入を阻止し、該
碍管内の気密性を向上せしめた避雷器に係り、送配電線
等の避雷装置に利用される避雷器に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a lightning arrester that prevents moisture such as rainwater from entering into an insulated pipe and improves airtightness within the insulated pipe, and is used for power transmission and distribution lines, etc. This invention relates to a lightning arrester used in a lightning arrester.
（従来の技術）
避雷器としては従来より配電用、送電用として各種のタ
イプが知られており、また、逐次新しいタイプのものが
発明、考案されている。何れにしても、避雷器はその性
能は当然として、該避雷器の内部に包蔵される避雷素子
を、水、湿気等から完全に遮断することが必要である。(Prior Art) Various types of lightning arresters have been known for use in power distribution and power transmission, and new types are being invented and devised one after another. In any case, in addition to the performance of the lightning arrester, it is necessary to completely shield the lightning arrester element contained within the lightning arrester from water, moisture, and the like.
即ち、前記避雷器の内部に湿気が侵入すると、該湿気を
介して内部要素の劣化を生じて電気漏洩が増すばかりで
なく、避雷器としての性能が低下してしまうことは周知
である。従って、前記避雷器内部への湿気等の侵入阻止
に対して種々の工夫を凝らしている。それらの中から３
つの例を取上げて以下に説明する。That is, it is well known that when moisture enters the interior of the lightning arrester, the moisture causes deterioration of the internal elements, not only increasing electrical leakage but also deteriorating the performance of the lightning arrester. Therefore, various measures have been taken to prevent moisture from entering the lightning arrester. 3 from them
Two examples will be explained below.
狐速４ｕ幻桁上
乙の従来の避雷器を、第６図に基づいて説明する。第６
図は避雷器を示す一部切欠縦断面図であり、該第６図に
おける碍管（２１１の上端側に課電電極（２）が配設さ
れ、下端側にキャンプ状の接地電極（至）が冠着されて
いる。さらに、前記碍管（２１１の内部には複数個の避
雷素子（２υが積層状に重ね合せた状態で内蔵されると
共に、該最上位の避雷素子＋２２）の上端面には受金具
ＱＩＯが載置されている。また、前記課電電極０１の碍
管（２υ内の突出部０３には電極金具（５）が連結され
、該電極金具ｅｓ＋と前記受金具（２０の間に前記避雷
素子（２２１各々の当着面と、最下部に配設される避雷
素子ｔ２２）と前記接地電極■の当着面とを押圧するス
プリング（５）が介装されている。さらに、前記電極金
具Ｑりと受金具ｅ８の間はスプリング■で支持されてい
る銅リボン（イ）で接続され、導電可能になっている。The conventional lightning arrester of the 4U phantom carrier will be explained based on FIG. 6. 6th
The figure is a partially cutaway vertical cross-sectional view showing the lightning arrester, and the insulator tube (211) shown in FIG. Furthermore, a plurality of lightning arresters (2υ) are built in a laminated state inside the insulator tube (211), and a receiver is provided on the upper end surface of the uppermost lightning arrester +22. A metal fitting QIO is placed thereon.An electrode metal fitting (5) is connected to the protrusion 03 within the insulator tube (2υ) of the energizing electrode 01, and the electrode fitting (5) is connected between the electrode fitting es+ and the receiving metal fitting (20). A spring (5) is interposed that presses the contact surface of each lightning arrester element (221) and the lightning arrester element t22 disposed at the bottom and the contact surface of the ground electrode (2). The metal fitting Q1 and the receiving metal fitting e8 are connected by a copper ribbon (A) supported by a spring 2, and are electrically conductive.
そして、雨水等の侵入阻止を図る為に、前記碍管ｅυの
上端中央部に、該碍管の中心に向うにつれてその内径が
小さくなるテーパ穴（至）を設け、該テーパ穴（至）の
内周面に対応した外形に形成された防水ゴム凶の外周を
、該防水ゴム凶の中心を貫通する課電電極（２）の上端
側に螺刻された雄ネジ（至）に螺着したナツトｒ３Ｉ）
で該防水ゴム凶の端面を前記課電電極（財）を覆う保護
キャップ（３δのロック金具（至）（ト）を介して締付
けて当接させている。また、前記碍管（２１）の下端外
周に面取部（至）を設け、該面取部（イ）に○−リング
（資）を嵌着し、該Ｏ−リング（資）を前記碍管Ｑυの
下端側に冠着されているキャンプ状の接地電極（至）で
押圧している。In order to prevent the intrusion of rainwater, etc., a tapered hole (to) whose inner diameter becomes smaller toward the center of the insulator is provided at the center of the upper end of the insulator pipe eυ, and the inner circumference of the tapered hole (to) is A nut R3I is screwed onto the outer periphery of a waterproof rubber tube formed in an external shape corresponding to the surface of the waterproof rubber tube to a male screw (end) threaded on the upper end side of the energized electrode (2) that passes through the center of the waterproof rubber tube. )
The end face of the waterproof rubber tube is tightened and brought into contact with the protective cap (3δ locking fittings) that covers the energized electrode (21). A chamfered portion (to) is provided on the outer periphery, an ○-ring (material) is fitted into the chamfered portion (a), and the O-ring (material) is crowned on the lower end side of the insulator pipe Qυ. It is pressed with a camp-shaped ground electrode (to).
従って、前記防水ゴム凶とテーパ穴（至）内周の間、防
水ゴム凶と課電電極日の間には該防水ゴム凶の弾性に基
づく面圧が発生し、また、０−リング（資）と面取部（
至）の間、該Ｏ−リング（資）と接地電極（至）のＯ−
リング（資）の押圧面にはＯ−リング（資）の弾性に基
づく面圧が発生して避雷器内部への雨水等の侵入を阻止
することになる。Therefore, surface pressure based on the elasticity of the waterproof rubber is generated between the waterproof rubber and the inner periphery of the tapered hole, and between the waterproof rubber and the energized electrode. ) and chamfered part (
between), the O- ring (main) and the ground electrode (to)
Surface pressure based on the elasticity of the O-ring is generated on the pressing surface of the ring, thereby preventing rainwater, etc. from entering the inside of the lightning arrester.
貧米■執■遣
この従来の避雷器の構成を、その課電電極側の要部一部
切欠縦断正面図の第７図に基づいて以下に説明する。The structure of this conventional lightning arrester will be described below with reference to FIG. 7, which is a partially cutaway longitudinal sectional front view of the main part on the energizing electrode side.
即ち、碍管（５１）の上端側にキャンプ状の課電電極（
５３）が冠着されている。該課電電極（５３）の前記碍
管（５１）との対向面には、該碍管（５１）の長さ方向
の中心と同軸心とした環状の溝（５６）が設けられると
共に、該！ （５６）にＯ−リング（６７）が嵌着され
ている。更に、前記課電電極（５３）の前記碍管（５１
）上部付近の外周を隙間を有して包囲する筒部（５８）
内周には螺旋溝（５７）が刻設され、該螺旋溝（５７）
が刻設された前記筒部（５８）内周と前記碍管（５１）
上部付近外周の間にシール剤（５９）が充填されている
。That is, a camp-shaped charging electrode (
53) is crowned. An annular groove (56) coaxial with the longitudinal center of the porcelain tube (51) is provided on the surface of the energizing electrode (53) facing the porcelain tube (51). (56) is fitted with an O-ring (67). Furthermore, the porcelain tube (51) of the energizing electrode (53)
) A cylindrical portion (58) that surrounds the outer periphery near the top with a gap.
A spiral groove (57) is carved on the inner circumference, and the spiral groove (57)
The inner periphery of the cylindrical portion (58) and the insulator tube (51)
A sealant (59) is filled between the outer periphery near the top.
なお、この避雷器における前記碍管（５１）下端側の雨
水等の侵入阻止構成は、第６図に基づいて説明した従来
の技術１における避雷器と同構成であるから説明を割愛
する。The configuration for preventing intrusion of rainwater or the like on the lower end side of the insulator tube (51) in this lightning arrester is the same as the configuration of the lightning arrester in the conventional technique 1 described based on FIG. 6, so a description thereof will be omitted.
従来■及街↓
この従来の避雷器を、その要部縦断面を示す第８図に基
づいて以下に説明する。Conventional ■ and Street↓ This conventional lightning arrester will be explained below based on FIG. 8 showing a vertical cross section of the main part thereof.
この避雷器は特開昭６１−１５１９１３号公報において
開示されているものであって、碍管（８１）の端部外周
に雄ネジ（９４）が形成され、該雄ネジ（９４）にキャ
ップ状の課電電極（８３）を螺合固定している。そして
、該課電電極（８３）の内部には有機性絶縁材料（８７
）を注入し、凝固させて気密性を保持させている。This lightning arrester is disclosed in Japanese Unexamined Patent Application Publication No. 151913/1983, and has a male thread (94) formed on the outer periphery of the end of an insulator tube (81), and a cap-shaped imposition on the male thread (94). An electric electrode (83) is screwed and fixed. An organic insulating material (87) is provided inside the charged electrode (83).
) is injected and solidified to maintain airtightness.
（発明が解決しようとする問題点）
前項において説明した従来の避雷器は、何れも避雷器内
部への雨水等の侵入阻止に対しての密封機能上の諸点に
ついては、はぼ満足することができるが、密封機構とし
て複雑となるので使用部材が多種にわたったり、或は密
封機能を発揮させるための前作業が困難である。(Problems to be Solved by the Invention) All of the conventional lightning arresters described in the previous section are fairly satisfactory in terms of sealing function to prevent rainwater etc. from entering inside the lightning arrester. However, since the sealing mechanism is complicated, a wide variety of members are used, or the preparatory work for achieving the sealing function is difficult.
即ち、従来の技術１及び従来の技術２で説明した避雷器
内部への雨水等の侵入は防水ゴム、○−リング等によっ
て防止されるのであるから、該防水ゴム、０−リングが
押圧される押圧面は平滑で傷が無いことが望ましい。し
かし、前記押圧面が形成される碍管は、焼物であって焼
成による寸法のばらつき、釉薬のたまり等による凹凸が
生じたり、異物の付着による傷などが生じ易い。従って
、釉薬のたまり、寸法歪が発生すると修復できないので
使用不能になる。また、０−リングは組込み具合によっ
ては溝からはみ出し、組込時に噛込まれ、むしれたりし
て密封機能を失ったりすることもあるので、組立作業に
おいて細心の注意を要する。更に、従来の技術２で説明
した避雷器のように、○−リングの他にシール剤を用い
る場合には、該シール剤が付着される面は清浄にしなけ
ればならない。即ち、該シール剤の付着面が清浄でない
と該面にシール剤が付着せず密封機能を発揮できないこ
とになる。従って、予めシール剤付着面の脱ゴミ、脱脂
作業を行なう必要があり、しかもシール剤付着面の形状
が複雑である程、完全な脱ゴミ、脱脂は困難である。さ
らに、電極等の金属に対して腐蝕作用を有するシール剤
もあり、このような場合にはアンダーコーティングも必
要となる。That is, since the intrusion of rainwater etc. into the inside of the lightning arrester as explained in Conventional Technique 1 and Conventional Technique 2 is prevented by the waterproof rubber, O-ring, etc., the pressure applied to the waterproof rubber, O-ring, etc. It is desirable that the surface be smooth and free of scratches. However, the insulator tube on which the pressing surface is formed is a fired product and is prone to variations in dimensions due to firing, unevenness due to glaze build-up, etc., and scratches due to adhesion of foreign matter. Therefore, if glaze accumulates or dimensional distortion occurs, it cannot be repaired and becomes unusable. Furthermore, depending on how well the O-ring is assembled, it may protrude from the groove, get caught during assembly, or be torn off, resulting in a loss of sealing function, so great care must be taken during assembly. Furthermore, when a sealant is used in addition to the O-ring as in the lightning arrester described in Prior Art 2, the surface to which the sealant is applied must be clean. That is, if the surface to which the sealant is applied is not clean, the sealant will not adhere to the surface and the sealing function will not be achieved. Therefore, it is necessary to perform dedusting and degreasing operations on the surface to which the sealant is adhered in advance, and the more complex the shape of the surface to which the sealant is adhered, the more difficult it is to completely remove dust and degrease. Furthermore, there are sealants that have a corrosive effect on metals such as electrodes, and in such cases, undercoating is also required.
また、従来の技術３で説明した避雷器では碍管の端部外
周に形成された雄ネジに螺合同着された課電電極の内部
に有機性絶縁材料を充填する。従って、該有機性絶縁材
料の接触面を清浄にしなければならない。そして、組立
後の前記有機性絶縁材料が十分凝固しないうちに、前記
課電電極が動いたりすると密封機能が低下するから、組
立後の避雷器を即移動したりする場合には細心の注意を
要することになる。Furthermore, in the lightning arrester described in Prior Art 3, an organic insulating material is filled inside a charging electrode that is screwed onto a male screw formed on the outer periphery of an end of an insulator tube. Therefore, the contact surfaces of the organic insulating material must be cleaned. If the energized electrode moves before the organic insulating material after assembly has solidified sufficiently, the sealing function will deteriorate, so extreme care must be taken when moving the lightning arrester immediately after assembly. It turns out.
従って、本発明は避雷器の密封に用いる部材の減少を図
ると共に、組立工数を削減することのできる避雷器の提
供を目的とする。Therefore, an object of the present invention is to provide a lightning arrester that can reduce the number of members used for sealing the lightning arrester and reduce the number of assembly steps.
（問題点を解決するための手段）
本発明は、前項で説明した問題点の解決を図る為に、課
電側及び接地側電極各々を略包蔵するように折曲延在さ
れた碍管の両端縁を密封金具で押着する構成にしたので
あって、従ってその特徴とするところは、有機性絶縁材
料からなる碍管の両端開口部に対し、課電電極並びに接
地側電極を配装する他、前記両電極間に複数個の避雷素
子を直列配置にして装設し、更には碍管の両端開口部に
密封金具を嵌着してなる避雷器において、前記碍管は架
橋ポリマーなどの材料よりなる熱収縮性材で形成され、
かつ該碍管の両端縁は前記課電側並びに接地側電極を各
々略包蔵するように折曲延在されて嵌着されると共に、
該碍管両端縁が前記密封金具で挿着包蔵されてなる構成
にしたところにある。(Means for Solving the Problems) In order to solve the problems explained in the previous section, the present invention provides both ends of an insulator tube that is bent and extended so as to substantially enclose each of the energizing side electrode and the grounding side electrode. The edges are pressed together with a sealing metal fitting, and its characteristics are as follows: In addition to arranging a charging electrode and a grounding electrode at the openings at both ends of the insulating tube made of an organic insulating material, In the lightning arrester, a plurality of lightning arrester elements are arranged in series between the two electrodes, and sealing fittings are fitted to the openings at both ends of the insulator tube. Made of natural materials,
and both ends of the insulator are bent and extended so as to substantially enclose the energizing side and grounding side electrodes respectively, and are fitted,
Both ends of the insulator tube are inserted and enclosed by the sealing fittings.
（作 用）
本発明は、架橋ポリマーなどの材料よりなる熱収縮性材
で形成された碍管の両開口部に課電電極と接地電極を配
装し、該両電極を略包蔵するように前記碍管の両端縁を
折曲延在させると共に、該碍管の両端縁を密封金具で挿
着包蔵したのである従って、該密封金具を取付けると、
該密封金具により前記碍管の両端縁は前記両電極に各々
押着される。前記熱収縮材料からなる碍管は弾性を有し
ている為、前記押着部には面圧が発生する。つまり、碍
管の弾性が失なわれない限り、該碍管と両電極の間並び
に該碍管と密封金具の間には面圧が発生し続けることと
になり、碍管内に包蔵されている避雷素子配置位置まで
雨水等が侵入することはない。従って、従来の技術にな
る避雷器のように、防水ゴム、０−リングの装着、或は
シール剤、有機性絶縁材料を注入、凝固させるまでもな
く、前記密封金具を取付けるだけで避雷器内部への雨水
等の侵入を阻止することができるようになったのである
。(Function) In the present invention, a charging electrode and a grounding electrode are disposed at both openings of an insulator tube made of a heat-shrinkable material such as a cross-linked polymer, and the above-mentioned electrode is arranged so as to substantially enclose both electrodes. Both ends of the insulator tube were bent and extended, and sealing fittings were inserted and enclosed in both ends of the insulator tube.Therefore, when the sealing fittings were installed,
Both ends of the porcelain tube are pressed against the electrodes by the sealing fittings. Since the insulator made of the heat-shrinkable material has elasticity, surface pressure is generated at the pressed portion. In other words, as long as the elasticity of the insulator tube is not lost, surface pressure will continue to be generated between the insulator tube and both electrodes and between the insulator tube and the sealing fitting, and the lightning arrester Rainwater etc. will not invade the position. Therefore, unlike conventional lightning arresters, there is no need to attach waterproof rubber, O-rings, or inject and solidify sealants or organic insulating materials; just by attaching the sealing fittings, the inside of the lightning arrester can be sealed. This makes it possible to prevent rainwater from entering.
（実 施 例）
本発明になる実施例を、第１図乃至第５図を参照しなが
ら以下に説明する。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
第を爽隻±
この第１実施例を、その縦断面を示す第１図に基づいて
以下に説明する。The first embodiment will be described below based on FIG. 1, which shows a longitudinal section thereof.
第１図において示す符号（１）は径方向の厚さ略３ｎの
シリコンゴムからなる碍管であり、該碍管（１）の内側
には複数個の避雷素子（２）が積層に直列配置されると
共に、第１図における該直列配置された避雷素子（２）
の上端面には課電電極（３）が、また、下端面には接地
電極（４）が重合状に配装されている。The reference numeral (1) shown in FIG. 1 is an insulator tube made of silicone rubber with a radial thickness of approximately 3 nm, and inside the insulator tube (1), a plurality of lightning arrester elements (2) are arranged in series in a laminated manner. In addition, the lightning arrester elements (2) arranged in series in FIG.
A charging electrode (3) is arranged on the upper end surface, and a grounding electrode (4) is arranged on the lower end surface in an overlapping manner.
前記課電電極（３）上端面と、接地電極（４）の下端面
にはそれらの中心部を除いて碍管（１）の両端縁（５）
が折曲延在されており、そして、両電極（３１（４１と
避雷素子（２）各々の当接面に対する押圧力は前記碍管
（１）を略１４０℃３０分間加熱して熱収縮させ、該碍
管（１１の両端縁（５）で挟持することによって与えら
れる。The upper end surface of the energizing electrode (3) and the lower end surface of the grounding electrode (4) are provided with both end edges (5) of the insulator tube (1), except for their centers.
is bent and extended, and the pressing force against the contact surfaces of both electrodes (31 (41) and lightning arrester (2)) is determined by heat shrinking the insulator tube (1) by heating it at approximately 140° C. for 30 minutes. It is provided by holding the insulator tube (11) between both ends (5).
前記両電極（３１（４１の外周には半円形断面をした溝
（６）が周設され、かつそれらの端面中央には雌ネジ（
７）が螺刻されている。そして、雌ネジ（７）には前記
碍管（１）の端部外周に外嵌される筒部（８）と、該碍
管（１）の端縁（５）外面に当接される当接面（９）を
有するキャップ状の密封金具ａωが各々螺合されている
。更に、前記両電極（３１（４１の溝（６）に対応する
前記密封金具００）の筒部（８）外周を外力によって塑
性変形させて凹溝αυを形成させた。つまり、前記筒部
（８）外周をかしめた構成としたのである。A groove (6) with a semicircular cross section is provided on the outer periphery of both the electrodes (31 (41), and a female screw (6) is provided at the center of the end surface thereof.
7) is engraved. The female screw (7) has a cylindrical portion (8) that is fitted around the outer circumference of the end of the insulator tube (1), and a contact surface that comes into contact with the outer surface of the end edge (5) of the insulator tube (1). Cap-shaped sealing fittings aω having (9) are screwed together. Further, the outer periphery of the cylindrical portion (8) of both electrodes (31 (the sealing fitting 00 corresponding to the groove (6) of 41) was plastically deformed by external force to form a concave groove αυ. In other words, the cylindrical portion ( 8) The outer periphery is caulked.
従って、前記凹溝αＤ内側には碍管（１）の弾性に基づ
く面圧が発生することになる。即ち、該凹溝ＱＤ内側は
密封機能を有することになり、該凹溝θυ内側から前記
避雷素子（２）が配装されている位置まで雨水等が侵入
することがなくなった。Therefore, surface pressure based on the elasticity of the insulator tube (1) is generated inside the groove αD. That is, the inner side of the groove QD has a sealing function, and rainwater etc. no longer intrude from the inner side of the groove θυ to the position where the lightning arrester element (2) is arranged.
また、本実施例では、前記密封金具００１の筒部（８）
外周と、該筒部（８）よりも中心寄りの前記碍管（１）
外周とを被覆する前記碍管（１）と同材質の架橋ポリマ
ーなとの材料よりなる熱収縮性材料の保護管Ｏ２を外嵌
した。該保護管■は前記雌ネジ（７）に螺着されている
密封金具００）の弛み防止に対してその効果を発揮する
。In addition, in this embodiment, the cylindrical portion (8) of the sealing fitting 001
the outer periphery and the insulator tube (1) closer to the center than the cylindrical portion (8);
A protective tube O2 made of a heat-shrinkable material made of the same material as the insulator tube (1), such as a crosslinked polymer, covering the outer periphery was fitted onto the outside. The protective tube (3) is effective in preventing the sealing fitting (00) screwed onto the female screw (7) from loosening.
なお、本実施例では前記筒部（８）外周をその周方向に
かしめたが、例えば、高圧ゴムホースにおける金具の締
付けと同様に、前記筒部（８）の径方向の中心と平行な
方向の複数個所で該筒部（８）外周を締付けることもで
き、また、前記周方向のかしめと、筒部（８）の径方向
の中心と平行な複数個所での締付けを併用することもで
きる。In this embodiment, the outer periphery of the cylindrical portion (8) is caulked in the circumferential direction, but for example, similar to the tightening of metal fittings in a high-pressure rubber hose, the outer periphery of the cylindrical portion (8) is caulked in a direction parallel to the radial center of the cylindrical portion (8). The outer periphery of the cylindrical portion (8) can be tightened at a plurality of locations, or the circumferential caulking and tightening at multiple locations parallel to the radial center of the cylindrical portion (8) can be used together.
里１尖施■
この第２実施例を、その課電電極側の要部縦断面を示す
第２図に基づいて説明する。This second embodiment will be explained based on FIG. 2, which shows a vertical cross section of the main part on the energizing electrode side.
即ち、ＦＲＰ樹脂からなる円筒（２０）の内側に、その
上面中央に雌ネジ（７）が螺刻された円板上の課電電極
（３）が嵌装されており、また、課電電極（３）の下面
に接して避雷素子（２）が嵌装されている。That is, a disc-shaped energizing electrode (3) with a female screw (7) carved in the center of the upper surface is fitted inside a cylinder (20) made of FRP resin, and the energizing electrode A lightning arrester element (2) is fitted in contact with the lower surface of (3).
前記円筒ｔＳの端部付近の外周には半円径断面をした溝
（６）が周設されている。そして、課電電極（３）の中
心部を除く上端面には前記円筒ｅＯ）外周に外嵌される
熱収縮性の碍管（３）の端縁（５）が折曲延在されてい
る。また、雌ネジ（７）には碍管（３）の端部外周に外
嵌される筒部（８）と、該碍管（１１の端縁（５）外面
に当接される当接面（９）を有するキャップ状の密封金
具α０）が螺合されている。更に、前記円筒（２０）の
溝（６）に対応する密封金具００）の筒部（８）外周を
外力によって塑性変形させて凹溝αＢを形成させた。そ
して、密封金具００）の筒部（８）外周と、該筒部（８
）よりも中心寄りの碍管（１）外周に保護管αりを外嵌
した。従って、その作用、効果は第１実施例と同効であ
る。A groove (6) having a semicircular cross section is provided around the outer circumference near the end of the cylinder tS. An end edge (5) of a heat-shrinkable insulator tube (3) fitted around the outer periphery of the cylinder eO is bent and extended on the upper end surface of the energizing electrode (3) except for the center part. The female screw (7) also includes a cylindrical portion (8) that is fitted around the outer periphery of the end of the insulator tube (3), and a contact surface (9) that comes into contact with the outer surface of the edge (5) of the insulator tube (11). ) is screwed onto the cap-shaped sealing fitting α0). Further, the outer periphery of the cylindrical portion (8) of the sealing fitting 00) corresponding to the groove (6) of the cylinder (20) was plastically deformed by external force to form a concave groove αB. Then, the outer periphery of the cylindrical part (8) of the sealing fitting 00) and the cylindrical part (8)
) A protection tube was fitted around the outer periphery of the insulator tube (1) closer to the center. Therefore, its operation and effect are the same as those of the first embodiment.
第主夫旌拠
この第３実施例を、その課電電極側の要部縦断面を示す
第３図に基づいて以下に説明する。This third embodiment will be described below with reference to FIG. 3, which shows a longitudinal section of the main part on the energizing electrode side.
即ち、円板状の課電電極（３）の上端面中央部に突出部
α萄を設け、該突出部α［株］の先端に雄ネジ（１４１
を螺刻すると共に、該雄ネジα０の下部を該雄ネジαａ
の外径よりもそのクト径が小さな円柱部ａωを形成させ
た。そして、該円柱部α９外周を碍管（１）の端縁（５
）で包蔵した。また、前記雄ネジαａには、その下部内
側に前記円柱部Ｑ５１を包蔵している前記碍管（１）の
端縁（５）外周を挿着する挿着内面０６）を有し、かつ
該挿着内面α６）の上方に、該挿着内面Ｑ６］内径と同
心の前記雄ネジ００に対応する雌ネジ（７）が螺刻され
た密封金具００）を螺着した。更に、前記碍管（１）端
部外周並びに端面と、密封金具α０の下部外周を包蔵す
る熱収縮性材料の保護管面を外嵌した構成とした。That is, a protrusion α is provided at the center of the upper end surface of the disc-shaped energizing electrode (3), and a male screw (141
At the same time, attach the lower part of the male screw α0 to the male screw αa.
A cylindrical portion aω having a smaller diameter than the outer diameter of the cylinder was formed. Then, the outer periphery of the cylindrical portion α9 is connected to the end edge (5) of the insulator tube (1).
). Further, the male thread αa has an insertion inner surface 06) into which the outer periphery of the end edge (5) of the insulator tube (1) containing the cylindrical portion Q51 is inserted inside the lower part thereof, and the insertion inner surface 06). A sealing fitting 00) having a female thread (7) corresponding to the male thread 00 concentric with the inner diameter of the insertion inner surface Q6 was screwed onto the upper surface of the insertion surface α6). Further, a protective tube surface made of a heat-shrinkable material enclosing the outer periphery and end face of the end of the insulator tube (1) and the lower outer periphery of the sealing fitting α0 was fitted onto the outside.
従って、前記円柱部０９外周と挿着内面α匂には、前記
端縁（５）の弾性に基づく面圧が発生し、また、前記密
封金具００）の外周は保護管面によって締付けられるか
ら、その作用、効果は第１実施例と同効である。Therefore, surface pressure based on the elasticity of the edge (5) is generated between the outer periphery of the cylindrical part 09 and the insertion inner surface α, and the outer periphery of the sealing fitting 00) is tightened by the protective tube surface. Its action and effect are the same as those of the first embodiment.
メ」】口１附
この第４実施例を、その課電電極側の要部縦断正面図の
第４図に基づいて以下に説明する。This fourth embodiment will be described below with reference to FIG. 4, which is a longitudinal sectional front view of the main part on the energizing electrode side.
即ち、円板状の課電電極（３）の上面中央に雌ネジ（７
）を螺刻し、かつ前記課電電極（３）上面に前記雌ネジ
（７）と同心にその断面が半円形状のリング状の溝（６
）を刻設した。そして、線溝（６）を碍管（１）の端縁
（５）で覆うと共に、前記雌ネジ（７）に前記碍管（１
１端部付近の外周径と略同径の円板体αηを有し、かつ
該円板体αＤの下面中央に前記雌ネジ（７）に対応する
雄ネジαａを有する密封金具αωを螺着した。また、前
記円板体０７）の下面には前記課電電極（３）上面に刻
設された溝（６）に対応する凸部α８）を形成すると共
に、前記碍管（１）の端部付近の外周と前記密封金具α
０）の円板体０７）外周に熱収縮性の保護管（Ｉ２）を
外嵌した構成にした。That is, a female screw (7
), and a ring-shaped groove (6
) was engraved. Then, the wire groove (6) is covered with the edge (5) of the insulator tube (1), and the female screw (7) is covered with the insulator tube (1).
A sealing fitting αω having a disc body αη having approximately the same diameter as the outer peripheral diameter near one end and having a male thread αa corresponding to the female thread (7) is screwed into the center of the lower surface of the disc body αD. did. Further, a convex portion α8) corresponding to the groove (6) carved on the upper surface of the energizing electrode (3) is formed on the lower surface of the disc body 07), and a convex portion α8) is formed near the end of the insulator tube (1). The outer periphery of and the sealing fitting α
A heat-shrinkable protective tube (I2) was fitted around the outer periphery of the disc body 07).
従って、前記溝（６）と凸部ａｅ＋に碍管端縁（５）の
弾性に基づく面圧が発生し、また、前記熱収縮性の保護
管０のにより円板体ＯＤ外周が締付けられるから、その
作用、効果は第１実施例と同効である。Therefore, surface pressure based on the elasticity of the insulator tube edge (5) is generated in the groove (6) and the convex portion ae+, and the outer periphery of the disc body OD is tightened by the heat-shrinkable protection tube 0. Its action and effect are the same as those of the first embodiment.
第）大旌炎
この第５実施例を、そき課電電極側の要部縦断正面図の
第５図に基づいて以下に説明する。This fifth embodiment will be described below with reference to FIG. 5, which is a longitudinal sectional front view of the main part on the energizing electrode side.
即ち、円板状の課電電極（３）の上面中央に、深くなる
につれてその内径が小さくなるテーバ穴０９）を設け、
該テーパ穴ｕ９の底部に該テーパ穴０９）と同心に雌ネ
ジ（７）を螺刻した。そして、前記テーパ穴０９）の内
周面を碍管（１１の端縁（５）を折曲させて覆う一方、
前記雌ネジ（７）には前記テーパ穴（＋９）内周面に対
応するテーバ状の外周面を有し、かつその下部に雄ネジ
Ｑ４１を有する密封金具００）を螺着した。また、前記
碍管（１）の端部付近の外周及び端部側面と、前記密封
金具ＱＯ）の外周とを熱収縮性の保護管叫を外装した構
成とした。That is, a tapered hole 09) whose inner diameter becomes smaller as it gets deeper is provided in the center of the upper surface of the disc-shaped charging electrode (3).
A female screw (7) was threaded on the bottom of the tapered hole u9 concentrically with the tapered hole 09). Then, while covering the inner circumferential surface of the tapered hole 09) by bending the end edge (5) of the insulator tube (11),
A sealing fitting 00) having a tapered outer circumferential surface corresponding to the inner circumferential surface of the tapered hole (+9) and having a male screw Q41 at its lower part was screwed into the female screw (7). Further, the outer periphery and end side surface near the end of the insulator tube (1) and the outer periphery of the sealing fitting QO) are covered with a heat-shrinkable protective tube.
従って、前記テーパ穴α９）内周面と密封金具００）の
テーバ状外周面には前記碍管（１）端縁（５）の弾性に
基づく面圧が発生し、また、前記熱収縮性の保護管（ロ
）は密封金具００）の外周を締付けるから、その作用、
効果は第１実施例と同効である。Therefore, surface pressure based on the elasticity of the end edge (5) of the insulator tube (1) is generated on the inner circumferential surface of the tapered hole α9) and the tapered outer circumferential surface of the sealing fitting 00), and the heat-shrinkable protection Since the pipe (b) tightens the outer circumference of the sealing fitting 00), its action,
The effect is the same as that of the first embodiment.
即ち、本発明によって、従来の技術になる避雷器のよう
に、防水ゴムや０−リングを用い、或はシール剤や有機
性絶縁材料を注入するまでもなく、前記碍管端縁の弾性
を利用して、該碍管端縁を密封金具を取付けて課電電極
或は接地電極に挿着するだけで、前記碍管端縁は密封機
能を発揮するから、避雷器内部への雨水等の侵入を完全
に阻止でき、もって、碍管内の気密性をより向上するこ
とができる。That is, according to the present invention, unlike conventional lightning arresters, there is no need to use waterproof rubber or O-rings, or inject sealants or organic insulating materials, but instead utilize the elasticity of the edge of the insulator tube. By simply attaching a sealing fitting to the edge of the insulator tube and inserting it into the energizing electrode or grounding electrode, the edge of the insulator tube exhibits a sealing function, completely preventing rainwater from entering the inside of the lightning arrester. As a result, the airtightness inside the insulator pipe can be further improved.
（発明の効果）
本発明は、電極と避雷素子とを収納する碍管を、架橋ポ
リマー等の材料よりなる熱収縮性材で形成し、前記碍管
の端縁により前記電極を略包蔵して、該碍管の端縁を密
封金具により前記電極に挿着させる構成としたのである
。(Effects of the Invention) The present invention comprises forming an insulator tube for housing an electrode and a lightning arrester element from a heat-shrinkable material such as a cross-linked polymer, and substantially enclosing the electrode by the edge of the insulator tube. The end edge of the porcelain tube is inserted into the electrode using a sealing fitting.
従って、密封金具を取付けると前記碍管の両端縁は前記
両電極側に挿着される。前記碍管の端縁は弾性を有して
いるから、該碍管両端縁の挿着面には弾性に基づく面圧
が発生する。つまり、該碍管の両端縁は挿着によって密
封機能を発揮することになるから、前記密封金具を取付
けるだけで、避雷器内部への雨水等の侵入が阻止される
ことになる。Therefore, when the sealing fitting is attached, both ends of the porcelain tube are inserted into the electrode sides. Since the edges of the insulator tube have elasticity, surface pressure based on the elasticity is generated on the insertion surfaces of both ends of the insulator tube. In other words, since both ends of the insulator tube exhibit a sealing function when inserted, rainwater and the like can be prevented from entering the inside of the lightning arrester simply by attaching the sealing fittings.
また、前記碍管両端縁に対する適切な挿着力は両電極並
びに密封金具の、寸法精度管理と、前記密封金具の取付
力の管理によって行なわれるから、該密封金具を予め設
定された取付力で取付けるだけの簡単な作業で良い。In addition, since the appropriate insertion force for both ends of the insulator tube is achieved by controlling the dimensional accuracy of both electrodes and the sealing fittings, and by controlling the mounting force of the sealing fittings, it is only necessary to attach the sealing fittings with a preset mounting force. Good for easy work.
従って、従来の避雷器のように、該避雷器内部への雨水
等の侵入を阻止する為に、防水ゴム、〇−リング、シー
ル剤或は有機性絶縁材料等を用いる必要がなくなった。Therefore, unlike conventional lightning arresters, there is no need to use waterproof rubber, O-rings, sealants, organic insulating materials, etc. to prevent rainwater from entering the lightning arrester.
即ち、使用部材は削減され、また、前記密封金具等は金
属製であって、例え傷付きを発生しても容易に修復でき
ることが多く、さらにシール剤や有機製絶縁材を注入す
ることもないから、組立時における部品の取扱い並びに
組立上った直後の避雷器の取扱いも容易になり、部品の
脱ゴミ、脱脂作業も、例えば工場エヤを該部品に吹付け
るだけの簡単な脱ゴミ作業で済むようになった。That is, the number of parts used is reduced, and since the sealing fittings are made of metal, even if they are damaged, they can often be easily repaired, and there is no need to inject sealants or organic insulating materials. This makes it easier to handle the parts during assembly as well as the surge arrester immediately after assembly, and removing dust and degreasing from the parts can be as simple as blowing factory air onto the parts. It became so.
以上のように本発明によれば、避雷器の密封用部品が減
少され、かつ密封金具を取付けるだけの簡単な作業で碍
管内部への雨水等の侵入を阻止できる極めて有用、かつ
優れた避雷器を実現することができたのである。As described above, according to the present invention, an extremely useful and excellent lightning arrester is realized in which the number of sealing parts of the lightning arrester is reduced and the intrusion of rainwater etc. into the inside of the insulator tube can be prevented by the simple operation of attaching the sealing fittings. I was able to do so.
第１図は第１実施例の避雷器の縦断面正面図、第２図は
第２実施例の避雷器の課電電極側要部縦断正面図、第３
図は第３実施例の避雷器の課電電極側要部縦断正面図、
第４図は第４実施例の避雷器の課電電極側要部縦断正面
図、第５図は第５実施例の避雷器の課電電極側縦断正面
図、第６図は従来の技術１の避雷器の一部切欠縦断正面
図、第７図は従来の技術２の避雷器の課電電極側要部の
一部切欠縦断正面図、第８図は従来の技術３の避雷器の
課電電極側要部縦断正面図である。
（１）−−碍管 （２１＝避雷素子 （３）−課電
電極（４１−−一接地電極 （５１−碍管端縁 （
６）−溝ＧＯ）−密封金具 叩−熱収縮性保護管
（２０１−絶縁性円筒。FIG. 1 is a vertical cross-sectional front view of the lightning arrester of the first embodiment, FIG.
The figure is a longitudinal sectional front view of the main part on the energized electrode side of the lightning arrester of the third embodiment,
FIG. 4 is a longitudinal sectional front view of the main part on the energized electrode side of the lightning arrester of the fourth embodiment, FIG. 5 is a longitudinal sectional front view of the energized electrode side of the lightning arrester of the fifth embodiment, and FIG. 6 is the lightning arrester of conventional technology 1. FIG. 7 is a partially cutaway vertical front view of the main part on the energized electrode side of the surge arrester according to conventional technology 2, and FIG. 8 is a main part on the energized electrode side of the surge arrester according to conventional technology 3. FIG. (1)--Insulator tube (21=Lightning arrester element (3)-Electrifying electrode (41--One ground electrode (51-Insulator tube edge (
6) - Groove GO) - Sealing fittings - Heat-shrinkable protective tube
(201-Insulating cylinder.
Claims (1)
、課電側電極並びに接地側電極を配装する他、前記両電
極間に複数個の避雷素子を直列配置にして装設し、更に
は前記碍管の両端開口部に密封金具を嵌着してなる避雷
器において、前記碍管は架橋ポリマーなどの材料よりな
る熱収縮性材で形成され、かつ該碍管の両端縁は前記課
電側並びに接地側電極を各々略包蔵するように折曲延在
されて嵌着されると共に、該碍管両端縁が前記密封金具
で押着包蔵されてなる構成にしたことを特徴とする避雷
器。(1) In addition to arranging a charging side electrode and a grounding side electrode at both end openings of an insulating tube made of an organic insulating material, a plurality of lightning arrester elements are installed in series between the two electrodes, Furthermore, in the lightning arrester in which sealing fittings are fitted to openings at both ends of the insulator tube, the insulator tube is formed of a heat-shrinkable material made of a material such as a crosslinked polymer, and both ends of the insulator tube are connected to the energized side and the energized side. 1. A lightning arrester characterized in that the insulator tube is bent and extended so as to substantially enclose each of the ground side electrodes and is fitted therein, and both ends of the insulator tube are press-enclosed with the sealing fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054787A JP2507746B2 (en) | 1987-06-17 | 1987-06-17 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054787A JP2507746B2 (en) | 1987-06-17 | 1987-06-17 | Lightning arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63313806A true JPS63313806A (en) | 1988-12-21 |
| JP2507746B2 JP2507746B2 (en) | 1996-06-19 |
Family
ID=15499260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15054787A Expired - Lifetime JP2507746B2 (en) | 1987-06-17 | 1987-06-17 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507746B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411502U (en) * | 1987-07-08 | 1989-01-20 | ||
| EP0872854A1 (en) * | 1997-03-26 | 1998-10-21 | Industrias de Aparellaje Electrico, S.A. | Overvoltage discharger |
| EP1447822A1 (en) * | 2003-02-12 | 2004-08-18 | ABB Technology AG | Active component for a surge arrester |
| KR20180082768A (en) * | 2017-01-11 | 2018-07-19 | (주)테크앤지 | Lightning rod for side lighting and installation method thereof |
-
1987
- 1987-06-17 JP JP15054787A patent/JP2507746B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6411502U (en) * | 1987-07-08 | 1989-01-20 | ||
| EP0872854A1 (en) * | 1997-03-26 | 1998-10-21 | Industrias de Aparellaje Electrico, S.A. | Overvoltage discharger |
| EP1447822A1 (en) * | 2003-02-12 | 2004-08-18 | ABB Technology AG | Active component for a surge arrester |
| US7154728B2 (en) | 2003-02-12 | 2006-12-26 | Abb Technology Ag | Active part for a surge arrester |
| CN100367439C (en) * | 2003-02-12 | 2008-02-06 | Abb技术有限公司 | Active part for a surge arrester |
| AU2004200337B2 (en) * | 2003-02-12 | 2008-11-20 | Abb Technology Ag | Active part of a surge arrester |
| KR20180082768A (en) * | 2017-01-11 | 2018-07-19 | (주)테크앤지 | Lightning rod for side lighting and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507746B2 (en) | 1996-06-19 |
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