JP3382094B2 - Surge arrester - Google Patents
Surge arresterInfo
- Publication number
- JP3382094B2 JP3382094B2 JP19648596A JP19648596A JP3382094B2 JP 3382094 B2 JP3382094 B2 JP 3382094B2 JP 19648596 A JP19648596 A JP 19648596A JP 19648596 A JP19648596 A JP 19648596A JP 3382094 B2 JP3382094 B2 JP 3382094B2
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- electric field
- members
- insulating material
- connecting member
- 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 - Fee Related
Links
Landscapes
- Thermistors And Varistors (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、絶縁容器内に複
数の非直線抵抗体を積重し、これら各非直線抵抗体の両
端に設けた接続板を複数の絶縁支持棒により連結して、
各非直線抵抗体をバネ部材の付勢力で固定した避雷器に
係り、特に両接続板と各絶縁支持棒との連結部の構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to stacking a plurality of non-linear resistors in an insulating container and connecting connecting plates provided at both ends of each of the non-linear resistors with a plurality of insulating support rods.
The present invention relates to a lightning arrester in which each non-linear resistor is fixed by a biasing force of a spring member, and more particularly to a structure of a connecting portion between both connecting plates and each insulating support rod.
【０００２】[0002]
【従来の技術】図１４は例えば特公平２−２４３６４号
公報に示された従来の避雷器の構成を示す断面図、図１
５は図１４における避雷器の要部の構成を拡大して示す
断面図である。図において、１は絶縁性材料でなり筒状
に形成された容器、２、３はこの容器１の両端に各ボス
部２ａ、３ａを介してそれぞれ固着され金属材料でなる
一対のフランジ部材、４、５は容器１の両端をそれぞれ
閉塞するように各フランジ部材２、３に気密に固着され
た一対の端子板である。2. Description of the Related Art FIG. 14 is a sectional view showing the structure of a conventional lightning arrester disclosed in Japanese Patent Publication No. 2-24364, for example.
FIG. 5 is an enlarged cross-sectional view showing the configuration of the main part of the arrester in FIG. In the figure, 1 is a container made of an insulating material and formed in a cylindrical shape, 2 and 3 are a pair of flange members made of a metal material, which are fixed to both ends of the container 1 via boss portions 2a, 3a, respectively. Reference numeral 5 denotes a pair of terminal plates airtightly fixed to the flange members 2 and 3 so as to close both ends of the container 1.
【０００３】６、７は容器１内の両端部に対向して配設
され、バネ部材８および台板９を介して両端子板４、５
にそれぞれ電気的に接続された一対の板状の接続部材、
１０は両接続部材６、７間を橋絡するように配設され、
例えばＦＲＰ（繊維強化プラスチック）等のような絶縁
性材料で形成された筒状の支持部材、１１はほぼ中央に
座部１１ａが形成され、一端側にはネジ部１１ｂ、他端
側には支持部材１０の端部に嵌入可能な嵌合部１１ｃが
それぞれ形成され金属材料でなる取付部材で、嵌合部１
１ｃが支持部材１０の端部に嵌合されて固着され、ネジ
部１１ｂが両接続部材６、７上の取付穴（図示せず）を
それぞれ貫通してナット１２で締結されることにより、
両接続部材６、７は支持部材１０により電気的に絶縁さ
れた状態で台板９上に一体化される。Reference numerals 6 and 7 are arranged so as to face both ends of the container 1, and both terminal plates 4 and 5 are provided via a spring member 8 and a base plate 9.
A pair of plate-shaped connecting members electrically connected to
10 is arranged so as to bridge between both connecting members 6 and 7,
For example, a cylindrical support member made of an insulating material such as FRP (fiber reinforced plastic), 11 has a seat portion 11a formed substantially at the center, a screw portion 11b at one end and a support portion at the other end. A fitting member 11c that can be fitted into the end portion of the member 10 is formed, and is a mounting member made of a metal material.
1c is fitted and fixed to the end portion of the support member 10, and the screw portion 11b penetrates through mounting holes (not shown) on both the connection members 6 and 7, respectively, and is fastened by the nut 12.
Both connecting members 6 and 7 are integrated on the base plate 9 in a state of being electrically insulated by the supporting member 10.
【０００４】１３は接続部材７上に所定の数だけ積重し
て配設された非直線抵抗体、１４は接続部材６とこれに
隣接、すなわち最上段の非直線抵抗体１３との間に介装
されたバネ部材で、各非直線抵抗体１３間にそれぞれ所
定の接触圧力を付勢するとともに、接続部材６と最上段
の非直線抵抗体１３とを電気的に接続する役目も果たし
ている。そして、図中Ｇは取付部材１１の嵌合部１１ｃ
と支持部材１０の内面とが接触する境界面の先端部を、
また、Ｈはユニットの最高電位の等電位線の分布をそれ
ぞれ表す。Reference numeral 13 denotes a non-linear resistor which is stacked on the connecting member 7 by a predetermined number, and 14 denotes between the connecting member 6 and the non-linear resistor 13 adjacent to the connecting member 6, that is, the uppermost non-linear resistor 13. The interposed spring member serves to apply a predetermined contact pressure between the respective non-linear resistors 13 and also serves to electrically connect the connecting member 6 and the uppermost non-linear resistor 13. . In the figure, G is the fitting portion 11c of the mounting member 11.
And the inner surface of the support member 10 contact the tip of the boundary surface,
H represents the distribution of equipotential lines of the highest potential of the unit.
【０００５】上記のように構成された従来の避雷器にお
いて、両端子板４、５間に電圧が印加されると、例えば
端子板４→バネ部材８→接続部材６→バネ部材１４→各
非直線抵抗体１３→接続部材７→台板９→端子板５の順
に電流は流れ、取付部材１１からは電界が発生し、特に
上述した取付部材１１の嵌合部１１ｃと支持部材１０の
内面とが接触する境界面の先端部Ｇで電界の強さは最も
大きくなる。そして、その強さは最高電位の等電位線Ｈ
に近付くほど大きくなる。In the conventional lightning arrester configured as described above, when a voltage is applied between the terminal plates 4 and 5, for example, the terminal plate 4 → the spring member 8 → the connecting member 6 → the spring member 14 → the respective non-straight lines A current flows in the order of resistor 13 → connecting member 7 → base plate 9 → terminal plate 5, and an electric field is generated from the mounting member 11, and in particular, the fitting portion 11c of the mounting member 11 and the inner surface of the supporting member 10 are The strength of the electric field is maximized at the tip G of the contacting boundary surface. And the strength is the equipotential line H of the highest potential.
It gets bigger as it gets closer to.
【０００６】[0006]
【発明が解決しようとする課題】従来の避雷器は以上の
ように構成されているので、両端子板４、５間に印加さ
れる電圧の大きさによっては、電界の強さが最も大きく
なる先端部Ｇでコロナ放電が発生して、支持部材１０を
形成する絶縁性材料が絶縁劣化を起こし、さらには絶縁
破壊に至るという問題点があった。Since the conventional lightning arrester is constructed as described above, depending on the magnitude of the voltage applied between the two terminal plates 4 and 5, the tip having the highest electric field strength can be obtained. There has been a problem that corona discharge occurs in the portion G, the insulating material forming the support member 10 deteriorates in insulation, and further dielectric breakdown occurs.
【０００７】この発明は上記のような問題点を解消する
ためになされたもので、先端部で発生する電界を抑制す
ることにより支持部材の絶縁劣化を防止することが可能
な避雷器を提供することを目的とするものである。The present invention has been made in order to solve the above problems, and provides a lightning arrester capable of preventing insulation deterioration of a supporting member by suppressing an electric field generated at a tip portion. The purpose is.
【０００８】[0008]
【課題を解決するための手段】この発明の請求項１に係
る避雷器は、両端を端子板によって封止された絶縁性材
料でなる筒状の容器と、両端子板とそれぞれ電気的に接
続され相対向して配設される一対の板状の接続部材と、
一方の接続部材上に他方の接続部材に向かって順次積重
された複数の非直線抵抗体と、絶縁性材料でなり各非直
線抵抗体の周囲に両接続部材間を橋絡するように配設さ
れた複数の筒状の支持部材と、金属材料でなり両接続部
材の各支持部材の端部と対応する位置に一端がそれぞれ
固着され他端が支持部材の端部内に嵌合することにより
連結された複数の取付部材と、他方の接続部材とこれに
隣接する非直線抵抗体との間に介在され各非直線抵抗体
間に所定の接触圧力を付勢するバネ部材とを備えた避雷
器において、各取付部材の他端側に小径部を形成し支持
部材の内面との間に隙間を形成したものである。A lightning arrester according to claim 1 of the present invention has a cylindrical container made of an insulating material, the ends of which are sealed by terminal plates, and both terminal plates are electrically connected. A pair of plate-shaped connecting members arranged to face each other,
A plurality of non-linear resistors that are sequentially stacked on one connecting member toward the other connecting member, and are arranged around each non-linear resistor made of an insulating material so as to bridge between the two connecting members. By disposing a plurality of cylindrical supporting members provided and one end of each of the connecting members made of a metal material at a position corresponding to the end of each supporting member, and the other end fitting into the end of the supporting member. A lightning arrester including a plurality of connected mounting members, and a spring member interposed between the other connecting member and a non-linear resistor adjacent to the other connecting member to urge a predetermined contact pressure between the non-linear resistors. In the above, a small diameter portion is formed on the other end side of each mounting member and a gap is formed between the mounting member and the inner surface of the supporting member.
【０００９】又、この発明の請求項２に係る避雷器は、
請求項１において、取付部材の他端側の先端および小径
部の周囲を覆うように固着された絶縁性材料でなる電界
緩和部材を具備したものである。The lightning arrester according to claim 2 of the present invention is
In Claim 1, the electric field mitigating member made of an insulating material is provided so as to be fixed so as to cover the tip of the other end of the mounting member and the periphery of the small diameter portion.
【００１０】又、この発明の請求項３に係る避雷器は、
両端を端子板によって封止された絶縁性材料でなる筒状
の容器と、両端子板とそれぞれ電気的に接続され相対向
して配設される一対の板状の接続部材と、一方の接続部
材上に他方の接続部材に向かって順次積重された複数の
非直線抵抗体と、絶縁性材料でなり各非直線抵抗体の周
囲に両接続部材間を橋絡するように配設された複数の筒
状の支持部材と、金属材料でなり両接続部材の各支持部
材の端部と対応する位置に一端がそれぞれ固着され他端
が支持部材の端部内に嵌合することにより連結された複
数の取付部材と、他方の接続部材とこれに隣接する非直
線抵抗体との間に介在され各非直線抵抗体間に所定の接
触圧力を付勢するバネ部材とを備えた避雷器において、
各取付部材の他端側の先端を覆うように固着された絶縁
性材料でなる電界緩和部材を具備したものである。The lightning arrester according to claim 3 of the present invention is
A cylindrical container made of an insulating material whose both ends are sealed by terminal plates, a pair of plate-shaped connecting members electrically connected to both terminal plates and arranged to face each other, and one connection A plurality of non-linear resistors sequentially stacked on the member toward the other connecting member, and made of an insulating material and arranged around each non-linear resistor so as to bridge between the two connecting members. A plurality of tubular supporting members are made of a metallic material, and one end is fixed to a position corresponding to the end of each supporting member of both connecting members, and the other end is connected by fitting into the end of the supporting member. In a lightning arrester including a plurality of mounting members, a spring member interposed between the other connecting member and a non-linear resistor adjacent to the other connecting member, and biasing a predetermined contact pressure between the non-linear resistors,
It is provided with an electric field relaxation member made of an insulating material and fixed so as to cover the other end of each mounting member.
【００１１】又、この発明の請求項４に係る避雷器は、
請求項２または３において、電界緩和部材の取付部材の
他端側先端より突出する厚さ寸法を取付部材が支持部材
に嵌合されている部分の長さ寸法より大に設定したもの
である。The lightning arrester according to claim 4 of the present invention is
In the second or third aspect, the thickness dimension of the electric field mitigating member protruding from the other end side tip of the mounting member is set to be larger than the length dimension of the portion where the mounting member is fitted to the supporting member.
【００１２】又、この発明の請求項５に係る避雷器は、
両端を端子板によって封止された絶縁性材料でなる筒状
の容器と、両端子板とそれぞれ電気的に接続され相対向
して配設される一対の板状の接続部材と、一方の接続部
材上に他方の接続部材に向かって順次積重された複数の
非直線抵抗体と、絶縁性部材でなり各非直線抵抗体の周
囲に両接続部材間を橋絡するように配設された複数の筒
状の支持部材と、金属材料でなり両接続部材の各支持部
材の端部と対応する位置に一端がそれぞれ固着され他端
が支持部材の端部内に嵌合することにより連結された複
数の取付部材と、他方の接続部材とこれに隣接する非直
線抵抗体との間に介在され各非直線抵抗体間に所定の接
触圧力を付勢するバネ部材とを備えた避雷器において、
各取付部材の他端側を覆うように固着された絶縁性材料
でなる第１の電界緩和部材、および容器の両端外周部に
取付部材の他端側先端と同一面までそれぞれ延在し金属
材料でなる第２の電界緩和部材を具備したものである。The lightning arrester according to claim 5 of the present invention is
A cylindrical container made of an insulating material whose both ends are sealed by terminal plates, a pair of plate-shaped connecting members electrically connected to both terminal plates and arranged to face each other, and one connection A plurality of non-linear resistors that are sequentially stacked on the member toward the other connecting member and an insulating member that is arranged around each non-linear resistor so as to bridge between the two connecting members. A plurality of tubular supporting members are made of a metallic material, and one end is fixed to a position corresponding to the end of each supporting member of both connecting members, and the other end is connected by fitting into the end of the supporting member. In a lightning arrester including a plurality of mounting members, a spring member interposed between the other connecting member and a non-linear resistor adjacent to the other connecting member, and biasing a predetermined contact pressure between the non-linear resistors,
A first electric field mitigating member made of an insulating material that is fixed so as to cover the other end side of each mounting member, and a metal material that extends to the outer periphery of both ends of the container to the same plane as the other end side tip of the mounting member. The second electric field relaxation member is formed.
【００１３】又、この発明の請求項６に係る避雷器は、
請求項５において、容器の両端部に両端板を固着するた
めに配設されるフランジ部材のボス部を延長させて第２
の電界緩和部材と兼用させたものである。The lightning arrester according to claim 6 of the present invention is
In Claim 5, the boss part of the flange member arrange | positioned for fixing both end plates to both ends of a container is extended, and it is 2nd.
It is also used as the electric field relaxation member.
【００１４】又、この発明の請求項７に係る避雷器は、
請求項５または６において、一方の接続部材とこれに隣
接する非直線抵抗体との間に金属材料でなり取付部材が
支持部材に嵌入されている部分の長さ寸法とほぼ等しい
厚さ寸法の第３の電界緩和部材を介装させたものであ
る。The lightning arrester according to claim 7 of the present invention is
7. The thickness dimension according to claim 5 or 6, which is made of a metallic material and has a thickness dimension substantially equal to a length dimension of a portion where the mounting member is fitted into the support member, between the one connection member and the non-linear resistor adjacent to the one connection member. The third electric field relaxation member is interposed.
【００１５】[0015]
実施の形態１．図１はこの発明の実施の形態１における
避雷器の構成を示す断面図、図２は図１における避雷器
の要部の構成を拡大して示す断面図、図３はある一定条
件の電圧を避雷器に印加した場合に、取付部材に発生す
る電界の強さを従来の避雷器と比較して示す特性図であ
る。図において、１５は絶縁性材料でなり筒状に形成さ
れた容器、１６、１７はこの容器１５の両端に各ボス部
１６ａ、１７ａを介してそれぞれ固着され金属材料でな
る一対のフランジ部材、１８、１９は容器１５の両端を
それぞれ閉塞するように各フランジ部材１６、１７に気
密に固着された一対の端子板である。２０、２１は容器
１５内の両端部に対向して配設され、バネ部材２２およ
び台板２３を介して両端子板１８、１９にそれぞれ電気
的に接続された一対の板状の接続部材、２４は両接続部
材２０、２１間を橋絡するように配設され、例えばＦＲ
Ｐ（繊維強化プラスチック）等のような絶縁性材料で形
成された筒状の支持部材、２５はほぼ中央に座部２５ａ
が形成され、一端側にはネジ部２５ｂ、他端側には支持
部材２４の端部に嵌入可能な嵌合部２５ｃ、およびその
先端に支持部材２４の内面との間に隙間を介在させる小
径部２５ｄがそれぞれ形成され金属材料でなる取付部材
で、嵌合部２５ｃが支持部材２４の端部に嵌合されて固
着され、ネジ部２５ｂが両接続部材２０、２１上の取付
穴（図示せず）をそれぞれ貫通してナット２６で締結さ
れることにより、両接続部材２０、２１は支持部材２４
により電気的に絶縁された状態で台板２３上に一体化さ
れる。Embodiment 1. 1 is a sectional view showing a structure of a lightning arrester according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view showing a structure of a main part of the lightning arrester in FIG. 1, and FIG. It is a characteristic view which shows the strength of the electric field which generate | occur | produces in a mounting member when applying, compared with the conventional lightning arrester. In the figure, 15 is a container made of an insulating material and formed in a tubular shape, 16 and 17 are a pair of flange members made of a metal material, which are fixed to both ends of the container 15 via boss portions 16a and 17a, respectively. , 19 are a pair of terminal plates airtightly fixed to the flange members 16 and 17 so as to close both ends of the container 15, respectively. Reference numerals 20 and 21 denote a pair of plate-shaped connecting members, which are arranged opposite to each other in the container 15 and electrically connected to both terminal plates 18 and 19 via a spring member 22 and a base plate 23, respectively. 24 is arranged so as to bridge between both connection members 20 and 21, for example FR
A cylindrical support member formed of an insulating material such as P (fiber reinforced plastic), 25 is a seat portion 25a substantially in the center.
Is formed, and a threaded portion 25b is formed on one end side, a fitting portion 25c that can be fitted into the end portion of the support member 24 is formed on the other end side, and a small diameter that allows a gap to be formed between the tip end thereof and the inner surface of the support member 24. A fitting member 25c is fitted and fixed to an end portion of the support member 24, and the screw portion 25b is a fitting hole (not shown) on both connection members 20 and 21. No. 2) and each of them is fastened with a nut 26 so that the connecting members 20 and 21 are connected to the support member 24.
Is integrated with the base plate 23 in an electrically insulated state.
【００１６】２７は接続部材２１上に所定の数だけ積重
して配設された非直線抵抗体、２８は接続部材２０とこ
れに隣接、すなわち最上段の非直線抵抗体２７との間に
介装されたバネ部材で、各非直線抵抗体２７間にそれぞ
れ所定の接触圧力を付勢するとともに、接続部材２０と
最上段の非直線抵抗体２７とを電気的に接続する役目も
果たしている。そして、図中Ｇは取付部材２５の嵌合部
２５ｃと支持部材２４の内面とが接触する境界面の先端
部を、また、Ｈはユニットの最高電位の等電位線の分布
をそれぞれ表す。なお、上記実施の形態１における避雷
器は、取付部材２５の部分を除き従来の避雷器とほぼ同
様に構成されている。Numeral 27 is a non-linear resistor which is stacked on the connecting member 21 by a predetermined number, and numeral 28 is between the connecting member 20 and the non-linear resistor 27 adjacent to the connecting member 20, that is, the uppermost non-linear resistor 27. The interposed spring member exerts a predetermined contact pressure between the respective non-linear resistors 27, and also serves to electrically connect the connection member 20 and the uppermost non-linear resistor 27. . In the figure, G represents the tip of the boundary surface where the fitting portion 25c of the mounting member 25 and the inner surface of the support member 24 contact each other, and H represents the distribution of equipotential lines of the highest potential of the unit. The lightning arrester in the above-described first embodiment has substantially the same structure as the conventional lightning arrester except for the mounting member 25.
【００１７】このように上記実施の形態１によれば取付
部材２５の他端側、すなわち嵌合部２５ｃの先端に小径
部２５ｄを形成して、支持部材２４の内面との間に隙間
を介在させるようにしたので、図２に示すように最高電
位の等電位線の分布Ｈは先端部Ｇから離れた状態とな
り、単位長さ当たりの電位差が小さくなるため、取付部
材２５で発生する電界は緩和され、図３に示すように従
来の避雷器における電界の強さ（図中点Ａで示す）を１
とすると、実施の形態１における避雷器の電界の強さ
（図中点Ｂで示す）は０．５６と約半分に抑えることが
可能になる。As described above, according to the first embodiment, the small diameter portion 25d is formed at the other end of the mounting member 25, that is, at the tip of the fitting portion 25c, and a gap is provided between the mounting member 25 and the inner surface of the support member 24. Since the distribution H of the equipotential lines of the highest potential is separated from the tip portion G as shown in FIG. 2 and the potential difference per unit length becomes small, the electric field generated in the mounting member 25 is The strength of the electric field (shown by point A in the figure) in the conventional lightning arrester is reduced to 1 as shown in FIG.
Then, the strength of the electric field of the arrester in Embodiment 1 (indicated by point B in the figure) can be suppressed to 0.56, which is about half.
【００１８】実施の形態２．図４はこの発明の実施の形
態２における避雷器の要部の構成を示す断面図である。
図において、上記実施の形態１におけるものと同様な部
分は同一符号を付して説明を省略する。２９は従来のも
のと同様に、ほぼ中央に座部２９ａが形成され、一端側
にはネジ部２９ｂ、他端側には支持部材２４の端部に嵌
入可能な嵌合部２９ｃがそれぞれ形成され金属材料でな
る取付部材、３０はこの取付部材２９の先端を覆うよう
に固着された、例えばエポキシ樹脂、ゴム、絶縁性接着
剤、ＦＲＰ等のような絶縁性材料でなる電界緩和部材で
ある。Embodiment 2. FIG. 4 is a sectional view showing a structure of a main part of a lightning arrester according to a second embodiment of the present invention.
In the figure, the same parts as those in the first embodiment described above are designated by the same reference numerals and the description thereof will be omitted. Similar to the conventional one, 29 has a seat portion 29a formed substantially in the center, a screw portion 29b on one end side, and a fitting portion 29c which can be fitted into the end portion of the support member 24 on the other end side. An attachment member 30 made of a metal material is an electric field relaxation member fixed so as to cover the tip of the attachment member 29 and made of an insulating material such as epoxy resin, rubber, an insulating adhesive, or FRP.
【００１９】このように上記実施の形態２によれば、取
付部材２９の先端に絶縁性材料でなる電界緩和部材３０
を固着させて覆うようにしたので、図に示すように最高
電位の等電位線の分布Ｈは先端部Ｇからさらに離れた状
態となり、単位長さ当たりの電位差が小さくなるため、
取付部材２９で発生する電界は緩和され、図３に示すよ
うに従来の避雷器における電界の強さ（図中点Ａで示
す）を１とすると、実施の形態２における避雷器の電界
の強さ（図中点Ｃで示す）は０．２６と約１／４に、ま
た、上記実施の形態１の場合と比較しても約１／２にそ
れぞれ抑えることが可能になる。As described above, according to the second embodiment, the electric field mitigating member 30 made of an insulating material is attached to the tip of the mounting member 29.
As shown in the figure, the distribution H of the equipotential lines having the highest potential is further separated from the tip portion G, and the potential difference per unit length becomes small, so that
The electric field generated by the mounting member 29 is relaxed, and assuming that the electric field strength of the conventional lightning arrester (shown by a point A in the figure) is 1 as shown in FIG. 3, the electric field strength of the lightning arrester in the second embodiment ( (Indicated by a point C in the figure) can be suppressed to 0.26, which is about 1/4, and to about 1/2 compared with the case of the first embodiment.
【００２０】なお、上記図４において、電界緩和部材３
０の表面を平坦にした場合について示しているが、電界
緩和部材３０を形成する絶縁性材料の性質あるいは固着
方法等に応じて、図５および図６にそれぞれ示すよう
に、各電界緩和部材３１、３２の表面を適宜山形状ある
いは谷形状に形成しても良く、上記と同様に電界の強さ
は０．２６に抑えられていることが確認された。In FIG. 4, the electric field relaxation member 3 is used.
0 shows the case where the surface is flattened. However, depending on the property of the insulating material forming the electric field relaxation member 30 or the fixing method, as shown in FIGS. 5 and 6, each electric field relaxation member 31. , 32 may be appropriately formed in a mountain shape or a valley shape, and it was confirmed that the electric field strength was suppressed to 0.26 as in the above.
【００２１】実施の形態３．図７はこの発明の実施の形
態３における避雷器の要部の構成を示す断面図である。
図において、上記各実施の形態１、２におけるものと同
様な部分は同一符号を付して説明を省略する。３３は取
付部材２５の先端部、すなわち小径部２５ｄの先端およ
びその周囲を覆うように固着された、例えばエポキシ樹
脂、ゴム、絶縁性接着剤、ＦＲＰ等のような絶縁性材料
でなる電界緩和部材である。Embodiment 3. FIG. 7 is a sectional view showing the configuration of the main part of the lightning arrester according to the third embodiment of the present invention.
In the figure, the same parts as those in the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted. Reference numeral 33 denotes an electric field relaxation member fixed to cover the tip of the mounting member 25, that is, the tip of the small diameter portion 25d and its periphery, and made of an insulating material such as epoxy resin, rubber, an insulating adhesive, or FRP. Is.
【００２２】このように上記実施の形態３によれば、上
記実施の形態１の場合と同様に、取付部材２５の他端側
先端、すなわち嵌合部２５ｃの先端に小径部２５ｄを形
成して、支持部材２４の内面との間に隙間を介在させる
とともに、小径部２５ｄの先端およびその周囲の隙間に
絶縁性材料でなる電界緩和部材３３を固着させて覆うよ
うにしたので、図に示すように最高電位の等電位線の分
布Ｈは先端部Ｇからさらに離れた状態となり、単位長さ
当たりの電位差が小さくなるため、取付部材２５で発生
する電界は緩和され、図３に示すように従来の避雷器に
おける電界の強さ（図中点Ａで示す）を１とすると、実
施の形態３における避雷器の電界の強さ（図中点Ｄで示
す）は０．１９となり、上記実施の形態２におけるより
もさらに小さく抑えることが可能になる。As described above, according to the third embodiment, as in the case of the first embodiment, the small diameter portion 25d is formed at the tip of the other end of the mounting member 25, that is, the tip of the fitting portion 25c. Since a gap is provided between the support member 24 and the inner surface of the support member 24, and the electric field mitigating member 33 made of an insulating material is fixed and covered at the tip of the small diameter portion 25d and the gap around the tip, as shown in the figure. In addition, the distribution H of the equipotential lines having the highest potential is further away from the tip portion G, and the potential difference per unit length becomes small, so that the electric field generated in the mounting member 25 is relaxed, and as shown in FIG. If the strength of the electric field (indicated by point A in the figure) in the lightning arrester of No. 1 is 1, the strength of the electric field in the arrester in the third embodiment (indicated by point D in the figure) is 0.19, and Even smaller than in Rukoto becomes possible.
【００２３】なお、上記図７において、電界緩和部材３
３の表面を平坦にした場合について示しているが、電界
緩和部材３３を形成する絶縁性材料の性質あるいは固着
方法等に応じて、図８および図９にそれぞれ示すよう
に、各電界緩和部材３４、３５の表面を適宜山形状ある
いは谷形状に形成しても良く、上記と同様に電界の強さ
は０．１９に抑えられていることが確認された。In FIG. 7, the electric field relaxation member 3 is used.
3 shows a case where the surface of the electric field relaxation member 3 is flattened, each electric field relaxation member 34 as shown in FIG. 8 and FIG. 9 depending on the property of the insulating material forming the electric field relaxation member 33 or the fixing method. , 35 may be appropriately formed in a mountain shape or a valley shape, and it was confirmed that the electric field strength was suppressed to 0.19 in the same manner as above.
【００２４】実施の形態４．図１０はこの発明の実施の
形態４における避雷器の要部の構成を示す断面図であ
る。本実施の形態４では、図から明らかなように、図４
で示した実施の形態２における避雷器と同様な構成にお
いて、取付部材２９の先端を覆うように固着された電界
緩和部材３６の厚さ寸法（図中ｌ1で示す）を、取付部
材２９が支持部材２４に嵌入されている部分の長さ寸法
（図中ｌ2で示す）より大に設定したものである。Fourth Embodiment FIG. 10 is a sectional view showing a structure of a main part of a lightning arrester according to a fourth embodiment of the present invention. In the fourth embodiment, as is clear from FIG.
In the structure similar to that of the arrester in the second embodiment shown in FIG. 3, the mounting member 29 supports the thickness dimension (indicated by l 1 in the figure) of the electric field mitigating member 36 fixed so as to cover the tip of the mounting member 29. The length is set to be larger than the length dimension of the portion fitted in the member 24 (indicated by l 2 in the figure).
【００２５】このように上記実施の形態４によれば、取
付部材２９の先端に固着される電界緩和部材３６の厚さ
寸法ｌ1を、取付部材２９が支持部材２４に嵌入されて
いる部分の長さ寸法ｌ2より大に設定したので、図に示
すように最高電位の等電位線の分布Ｈは先端部Ｇからさ
らに離れた状態となり、単位長さ当たりの電位差が小さ
くなるため、取付部材２９で発生する電界は緩和され、
図３に示すように従来の避雷器における電界の強さ（図
中点Ａで示す）を１とすると、実施の形態４における避
雷器の電界の強さ（図中点Ｅで示す）は０．２３とな
り、ほぼ同様の構成を有する実施の形態２における避雷
器よりもさらに小さく抑えることが可能になる。As described above, according to the fourth embodiment, the thickness dimension l 1 of the electric field relaxation member 36 fixed to the tip of the mounting member 29 is the same as that of the portion where the mounting member 29 is fitted into the support member 24. Since it is set to be larger than the length dimension l 2, the distribution H of the equipotential lines of the highest potential becomes further away from the tip portion G as shown in the figure, and the potential difference per unit length becomes small, so that the mounting member The electric field generated at 29 is relaxed,
As shown in FIG. 3, assuming that the strength of the electric field in the conventional lightning arrester (indicated by point A in the figure) is 1, the strength of the electric field in the arrester in the fourth embodiment (indicated by point E in the figure) is 0.23. Therefore, it is possible to further reduce the size of the lightning arrester according to the second embodiment having substantially the same configuration.
【００２６】又、上記実施の形態４では、実施の形態２
における避雷器とほぼ同様の構成のものに電界緩和部材
３６を適用した場合について説明したが、図１１に示す
ように図７で示した実施の形態３における避雷器と同様
の構成のものに、取付部材２５が支持部材２４に嵌入さ
れている長さ寸法（図中ｌ2で示す）よりも、厚さ寸法
（図中ｌ1で示す）の大きな電界緩和部材３７を適用し
ても良く、この場合は図３に示すように避雷器の電界の
強さ（図中点Ｆで示す）は０．１７となり、実施の形態
３におけるよりもさらに小さく抑えることが可能にな
る。Further, in the above-mentioned fourth embodiment, the second embodiment is adopted.
The case where the electric field mitigating member 36 is applied to a structure substantially similar to the arrester in FIG. 11 has been described. However, as shown in FIG. 11, a structure similar to that of the arrester in the third embodiment shown in FIG. An electric field relaxation member 37 having a larger thickness dimension (indicated by l 1 in the figure) than the length dimension (indicated by l 2 in the figure) in which 25 is fitted in the support member 24 may be applied. As shown in FIG. 3, the strength of the electric field of the arrester (indicated by the point F in the figure) is 0.17, which can be suppressed to a level smaller than that in the third embodiment.
【００２７】実施の形態５．図１２はこの発明の実施の
形態５における避雷器の構成を示す断面図、図１３は図
１２における避雷器の要部の構成を拡大して示す断面図
である。本実施の形態５では、図から明らかなように図
７ないし９、図１１等で示した実施の形態３および４に
おける避雷器と同様な構成において、取付部材２５の小
径部２５ｄの先端およびその周囲の隙間に絶縁性材料で
なる第１の電界緩和部材３８を固着させて覆うととも
に、フランジ部材１６のボス部１６ａを延長させ、その
先端が取付部材２５の他端側、すなわち小径部２５ｄの
先端と同一面となるように構成されている。なお、この
場合、ボス部１６ａを延長させる替わりに金属材料でな
る他の部材を容器１５の端部の周囲に配設して、第２の
電界緩和部材としても良いことは言うまでもない。Embodiment 5. 12 is a sectional view showing a structure of a lightning arrester according to a fifth embodiment of the present invention, and FIG. 13 is an enlarged sectional view showing a structure of a main part of the lightning arrester in FIG. In the fifth embodiment, as is clear from the drawings, in the same configuration as the lightning arresters in the third and fourth embodiments shown in FIGS. 7 to 9, 11 and the like, the tip of the small diameter portion 25d of the mounting member 25 and its surroundings. The first electric field mitigating member 38 made of an insulating material is fixed and covered in the gap of, and the boss portion 16a of the flange member 16 is extended, and the tip thereof is on the other end side of the mounting member 25, that is, the tip of the small diameter portion 25d. It is configured to be flush with. In this case, it goes without saying that instead of extending the boss portion 16a, another member made of a metal material may be arranged around the end portion of the container 15 to serve as the second electric field relaxation member.
【００２８】このように上記実施の形態５によれば、取
付部材２５の先端を第１の電界緩和部材３８で覆うとと
もに、フランジ部材１６のボス部１６ａを取付部材２５
の先端と同一面になるように延長させて第２の電界緩和
部材としたので、避雷器内部の電界が平等になり、単位
長さ当たりの電位差が小さくなるため、取付部材２５で
発生する電界は緩和され、図３に示すように従来の避雷
器における電界の強さ（図中点Ａで示す）を１とする
と、実施の形態５における避雷器の強さ（図中点Ｉで示
す）は０．１６となり、ほぼ同様の構成を有する実施の
形態３および４における避雷器よりもさらに小さく抑え
ることが可能になる。As described above, according to the fifth embodiment, the tip of the mounting member 25 is covered with the first electric field relaxation member 38, and the boss portion 16a of the flange member 16 is mounted on the mounting member 25.
Since the second electric field relaxation member is extended so as to be flush with the tip of the electric field, the electric field inside the arrester becomes even and the potential difference per unit length becomes small. If the strength of the electric field (indicated by point A in the figure) in the conventional lightning arrester is set to 1 as shown in FIG. 3, the intensity of the arrester in the fifth embodiment (indicated by point I in the figure) is 0. It becomes 16 and can be suppressed to be smaller than the lightning arresters in the third and fourth embodiments having substantially the same configuration.
【００２９】さらに又、接続部材２１とこれに隣接する
最下段の非直線抵抗体２７との間に、取付部材２５が支
持部材２４に嵌入されている部分の長さ寸法と、ほぼ等
しい厚さ寸法の金属材料でなる第３の電界緩和部材３９
を介在させるようにすれば、電界緩和作用はさらに増大
された。Further, between the connecting member 21 and the lowermost non-linear resistor 27 adjacent to the connecting member 21, a thickness substantially equal to the length dimension of the portion where the mounting member 25 is fitted in the support member 24. Third electric field mitigating member 39 made of a metallic material having dimensions
, The electric field relaxation effect was further enhanced.
【００３０】[0030]
【発明の効果】以上のように、この発明の請求項１によ
れば、両端を端子板によって封止された絶縁性材料でな
る筒状の容器と、両端子板とそれぞれ電気的に接続され
相対向して配設される一対の板状の接続部材と一方の接
続部材上に他方の接続部材に向かって順次積重された複
数の非直線抵抗体と、絶縁性材料でなり各非直線抵抗体
の周囲に両接続部材間を橋絡するように配設された複数
の筒状の支持部材と金属材料でなり両接続部材の各支持
部材の端部と対応する位置に一端がそれぞれ固着され他
端が支持部材の端部内に嵌合することにより連結された
複数の取付部材と、他方の接続部材とこれに隣接する非
直線抵抗体との間に介在され各非直線抵抗体間に所定の
接触圧力を付勢するバネ部材とを備えた避雷器におい
て、各取付部材の他端側に小径部を形成し支持部材の内
面との間に隙間を形成したので、取付部材と支持部材の
内面とが接触する境界面の先端部の電界を抑制し、支持
部材の絶縁劣化を防止することが可能な避雷器を提供す
ることができる。As described above, according to the first aspect of the present invention, the cylindrical container made of an insulating material, the both ends of which are sealed by the terminal plates, and the both terminal plates are electrically connected to each other. A pair of plate-shaped connecting members arranged to face each other, a plurality of nonlinear resistors sequentially stacked on one connecting member toward the other connecting member, and each nonlinear member made of an insulating material Made of a metal material and a plurality of tubular supporting members arranged so as to bridge between the connecting members around the resistor, and one end of each connecting member is fixed to a position corresponding to the end of each supporting member. And a plurality of mounting members connected by fitting the other end into the end of the support member, and between the other connecting member and the non-linear resistor adjacent thereto, and between each non-linear resistor. In a lightning arrester provided with a spring member for urging a predetermined contact pressure, other than each mounting member, Since a small diameter portion is formed on the side and a gap is formed between the inner surface of the supporting member and the inner surface of the supporting member, the electric field at the tip of the boundary surface where the mounting member and the inner surface of the supporting member contact each other is suppressed, and insulation deterioration of the supporting member is prevented It is possible to provide a lightning arrester capable of doing so.
【００３１】又、この発明の請求項２によれば、請求項
１において、取付部材の他端側の先端および小径部の周
囲を覆うように固着された絶縁性材料でなる電界緩和部
材を具備したので、取付部材と支持部材の内面とが接触
する境界面の先端部の電界を抑制し、支持部材の絶縁劣
化を防止することが可能な避雷器を提供することができ
る。According to a second aspect of the present invention, in the first aspect, the electric field relaxation member made of an insulating material is fixed so as to cover the tip of the other end of the mounting member and the periphery of the small diameter portion. Therefore, it is possible to provide the lightning arrester capable of suppressing the electric field at the tip of the boundary surface where the mounting member and the inner surface of the supporting member come into contact with each other and preventing the insulation deterioration of the supporting member.
【００３２】又、この発明の請求項３によれば、両端を
端子板によって封止された絶縁性材料でなる筒状の容器
と、両端子板とそれぞれ電気的に接続され相対向して配
設される一対の板状の接続部材と、一方の接続部材上に
他方の接続部材に向かって順次積重された複数の非直線
抵抗体と、絶縁性材料でなり各非直線抵抗体の周囲に両
接続部材間を橋絡するように配設された複数の筒状の支
持部材と、金属材料でなり両接続部材の各支持部材の端
部と対応する位置に一端がそれぞれ固着され他端が支持
部材の端部内に嵌合することにより連結された複数の取
付部材と、他方の接続部材とこれに隣接する非直線抵抗
体との間に介在され各非直線抵抗体間に所定の接触圧力
を付勢するバネ部材とを備えた避雷器において、各取付
部材の他端側の先端を覆うように固着された絶縁性材料
でなる電界緩和部材を具備したので、取付部材と支持部
材の内面とが接触する境界面の先端部の電界を抑制し、
支持部材の絶縁劣化を防止することが可能な避雷器を提
供することができる。According to a third aspect of the present invention, a cylindrical container made of an insulating material and having both ends sealed with terminal plates, and both terminal plates are electrically connected to each other and arranged to face each other. A pair of plate-shaped connecting members provided, a plurality of non-linear resistors sequentially stacked on one connecting member toward the other connecting member, and a periphery of each non-linear resistor made of an insulating material A plurality of tubular supporting members arranged so as to bridge between the two connecting members, and one end fixed to a position corresponding to the end of each supporting member made of a metal material and the other end Is interposed between the plurality of mounting members connected by fitting in the end portion of the support member, the other connecting member and the non-linear resistor adjacent to this, and a predetermined contact is made between the non-linear resistors. In a lightning arrester equipped with a spring member for urging pressure, the tip of the other end of each mounting member Having provided the electric field relaxation member formed of anchored insulating material so as to cover the, suppress the electric field of the tip portion of the boundary surface and the inner surface of the mounting member and the supporting member are in contact,
A lightning arrester capable of preventing insulation deterioration of a support member can be provided.
【００３３】又、この発明の請求項４によれば、請求項
２または３において、電界緩和部材の取付部材の他端側
先端より突出する厚さ寸法を取付部材が支持部材に嵌合
されている部分の長さ寸法より大に設定したので、取付
部材と支持部材の内面とが接触する境界面の先端部の電
界をさらに抑制し、支持部材の絶縁劣化を防止すること
が可能な避雷器を提供することができる。According to a fourth aspect of the present invention, in the second or third aspect, the attachment member is fitted to the support member with a thickness dimension protruding from the other end side tip of the attachment member of the electric field relaxation member. Since it is set to be larger than the length dimension of the existing part, a surge arrester that can further suppress the electric field at the tip of the boundary surface where the mounting member and the inner surface of the support member contact each other and prevent insulation deterioration of the support member Can be provided.
【００３４】又、この発明の請求項５によれば、両端を
端子板によって封止された絶縁性材料でなる筒状の容器
と、両端子板とそれぞれ電気的に接続され相対向して配
設される一対の板状の接続部材と、一方の接続部材上に
他方の接続部材に向かって順次積重された複数の非直線
抵抗体と、絶縁性部材でなり各非直線抵抗体の周囲に両
接続部材間を橋絡するように配設された複数の筒状の支
持部材と、金属材料でなり両接続部材の各支持部材の端
部と対応する位置に一端がそれぞれ固着され他端が支持
部材の端部内に嵌合することにより連結された複数の取
付部材と、他方の接続部材とこれに隣接する非直線抵抗
体との間に介在され各非直線抵抗体間に所定の接触圧力
を付勢するバネ部材とを備えた避雷器において、各取付
部材の他端側を覆うように固着された絶縁性材料でなる
第１の電界緩和部材、および容器の両端外周部に取付部
材の他端側先端と同一面までそれぞれ延在し金属材料で
なる第２の電界緩和部材を具備したので、取付部材と支
持部材の内面とが接触する境界面の先端部の電界をさら
に抑制し、支持部材の絶縁劣化を防止することが可能な
避雷器を提供することができる。According to a fifth aspect of the present invention, a tubular container made of an insulating material and having both ends sealed with terminal plates, and both terminal plates are electrically connected to each other and arranged to face each other. A pair of plate-shaped connecting members, a plurality of non-linear resistors stacked on one connecting member toward the other connecting member, and an insulating member around each non-linear resistor. A plurality of tubular supporting members arranged so as to bridge between the two connecting members, and one end fixed to a position corresponding to the end of each supporting member made of a metal material and the other end Is interposed between the plurality of mounting members connected by fitting in the end portion of the support member, the other connecting member and the non-linear resistor adjacent to this, and a predetermined contact is made between the non-linear resistors. In a lightning arrester having a spring member for urging pressure, the other end side of each mounting member is covered. A first electric field mitigating member made of an insulating material, and a second electric field mitigating member made of a metallic material and extending to the outer peripheral portions of both ends of the container to the same plane as the other end side tip of the attachment member. Since this is provided, it is possible to provide a lightning arrester that can further suppress the electric field at the tip of the boundary surface where the mounting member and the inner surface of the support member contact each other, and prevent insulation deterioration of the support member.
【００３５】又、この発明の請求項６によれば、請求項
５において、容器の両端部に両端板を固着するために配
設されるフランジ部材のボス部を延長させて第２の電界
緩和部材と兼用させたので、取付部材と支持部材の内面
とが接触する境界面の先端部の電界を部品点数を増やす
ことなしに抑制し、支持部材の絶縁劣化を防止すること
が可能な避雷器を提供することができる。According to a sixth aspect of the present invention, in the fifth aspect, the boss portion of the flange member provided for fixing the both end plates to the both end portions of the container is extended to extend the second electric field relaxation. Since it is also used as a member, a lightning arrester capable of suppressing the electric field at the tip of the boundary surface where the mounting member and the inner surface of the supporting member come into contact without increasing the number of parts and preventing the insulation deterioration of the supporting member. Can be provided.
【００３６】又、この発明の請求項７によれば、請求項
５または６において、一方の接続部材とこれに隣接する
非直線抵抗体との間に金属材料でなり取付部材が支持部
材に嵌入されている部分の長さ寸法とほぼ等しい厚さ寸
法の第３の電界緩和部材を介装させたので、取付部材と
支持部材の内面とが接触する境界面の先端部の電界を抑
制し、支持部材の絶縁劣化を防止することが可能な避雷
器を提供することができる。According to claim 7 of the present invention, in claim 5 or 6, the mounting member made of a metallic material is fitted into the support member between one of the connecting members and the non-linear resistor adjacent thereto. Since the third electric field mitigating member having a thickness dimension substantially equal to the length dimension of the portion provided is interposed, the electric field at the tip of the boundary surface where the mounting member and the inner surface of the supporting member come into contact is suppressed, A lightning arrester capable of preventing insulation deterioration of a support member can be provided.
【図１】 この発明の実施の形態１における避雷器の構
成を示す断面図である。FIG. 1 is a sectional view showing a structure of a lightning arrester according to a first embodiment of the present invention.
【図２】 図１における避雷器の要部の構成を拡大して
示す断面図である。2 is a cross-sectional view showing an enlarged configuration of a main part of the lightning arrester in FIG.
【図３】 一定条件の電圧を避雷器に印加した場合に、
取付部材に発生する電界の強さを従来の避雷器と比較し
て示す特性図である。[Fig. 3] When a voltage under a certain condition is applied to the arrester,
It is a characteristic view which shows the strength of the electric field which occurs in a mounting member in comparison with the conventional lightning arrester.
【図４】 この発明の実施の形態２における避雷器の要
部の構成を示す断面図である。FIG. 4 is a sectional view showing a configuration of a main part of a lightning arrester according to a second embodiment of the present invention.
【図５】 図４における避雷器の要部の変形例を示す断
面図である。5 is a cross-sectional view showing a modified example of the main part of the lightning arrester in FIG.
【図６】 図４における避雷器の要部の異なる変形例を
示す断面図である。6 is a cross-sectional view showing another modified example of the main part of the lightning arrester in FIG.
【図７】 この発明の実施の形態３における避雷器の要
部の構成を示す断面図である。FIG. 7 is a sectional view showing a configuration of a main part of a lightning arrester according to a third embodiment of the present invention.
【図８】 図７における避雷器の要部の変形例を示す断
面図である。8 is a cross-sectional view showing a modified example of the main part of the lightning arrester in FIG.
【図９】 図７における避雷器へ要部の異なる変形例を
示す断面図である。FIG. 9 is a cross-sectional view showing a modified example of a main part of the lightning arrester in FIG.
【図１０】 この発明の実施の形態４における避雷器の
要部の構成を示す断面図である。FIG. 10 is a sectional view showing a configuration of a main part of a lightning arrester according to a fourth embodiment of the present invention.
【図１１】 図１０における避雷器の要部の変形例を示
す断面図である。11 is a cross-sectional view showing a modified example of the main part of the lightning arrester in FIG.
【図１２】 この発明の実施の形態５における避雷器の
構成を示す断面図である。FIG. 12 is a sectional view showing a structure of a lightning arrester according to a fifth embodiment of the present invention.
【図１３】 図１２における避雷器の要部の構成を拡大
して示す断面図である。13 is an enlarged cross-sectional view showing a configuration of a main part of the lightning arrester in FIG.
【図１４】 従来の避雷器の構成を示す断面図である。FIG. 14 is a sectional view showing a configuration of a conventional lightning arrester.
【図１５】 図１４における避雷器の要部の構成を拡大
して示す断面図である。15 is a cross-sectional view showing an enlarged configuration of a main part of the lightning arrester in FIG.
１５ 容器、１６，１７ フランジ部材、１６ａ，１７
ａ ボス部、１８，１９ 端子板、２０，２１ 接続部
材、２４ 支持部材、２５，２９ 取付部材、２５ａ，
２９ａ 座部、２５ｂ，２９ｂ ネジ部、２５ｃ，２９
ｃ 嵌合部、２５ｄ 小径部、２７ 非直線抵抗体、２
８ バネ部材、３０，３１，３２，３３，３４，３５，
３６，３７ 電界緩和部材、３８ 第１の電界緩和部
材、３９ 第３の電界緩和部材。15 containers, 16 and 17 flange members, 16a and 17
a boss portion, 18, 19 terminal plate, 20, 21 connecting member, 24 supporting member, 25, 29 mounting member, 25a,
29a Seat portion, 25b, 29b Screw portion, 25c, 29
c Fitting part, 25d small diameter part, 27 non-linear resistor, 2
8 spring members, 30, 31, 32, 33, 34, 35,
36, 37 Electric field relaxation member, 38 1st electric field relaxation member, 39 3rd electric field relaxation member.
Claims (7)
材料でなる筒状の容器と、上記両端子板とそれぞれ電気
的に接続され相対向して配設される一対の板状の接続部
材と、上記一方の接続部材上に上記他方の接続部材に向
かって順次積重された複数の非直線抵抗体と、絶縁性材
料でなり上記各非直線抵抗体の周囲に上記両接続部材間
を橋絡するように配設された複数の筒状の支持部材と、
金属材料でなり上記両接続部材の上記各支持部材の端部
と対応する位置に一端がそれぞれ固着され他端が上記支
持部材の端部内に嵌合することにより連結された複数の
取付部材と、上記他方の接続部材とこれに隣接する上記
非直線抵抗体との間に介在され上記各非直線抵抗体間に
所定の接触圧力を付勢するバネ部材とを備えた避雷器に
おいて、上記各取付部材の他端側に小径部を形成し上記
支持部材の内面との間に隙間を形成したことを特徴とす
る避雷器。1. A tubular container made of an insulating material, the ends of which are sealed by terminal plates, and a pair of plate-like connections electrically connected to the terminal plates and arranged to face each other. A member, a plurality of non-linear resistors sequentially stacked on the one connecting member toward the other connecting member, and an insulating material between the two connecting members around each of the non-linear resistors. A plurality of cylindrical support members arranged so as to bridge
A plurality of attachment members made of a metal material, one end of which is fixed to positions corresponding to the ends of the respective support members of the both connection members, and the other ends of which are connected by being fitted into the ends of the support members; A lightning arrester comprising a spring member interposed between the other connecting member and the non-linear resistor adjacent to the other connecting member, and a spring member for urging a predetermined contact pressure between the non-linear resistors. A lightning arrester, characterized in that a small diameter portion is formed on the other end side of the above and a gap is formed between the small diameter portion and the inner surface of the support member.
周囲を覆うように固着された絶縁性材料でなる電界緩和
部材を具備したことを特徴とする請求項１記載の避雷
器。2. The lightning arrester according to claim 1, further comprising an electric field mitigating member made of an insulating material that is fixed so as to cover the tip of the other end of the mounting member and the periphery of the small diameter portion.
材料でなる筒状の容器と、上記両端子板とそれぞれ電気
的に接続され相対向して配設される一対の板状の接続部
材と、上記一方の接続部材上に上記他方の接続部材に向
かって順次積重された複数の非直線抵抗体と、絶縁性材
料でなり上記各非直線抵抗体の周囲に上記両接続部材間
を橋絡するように配設された複数の筒状の支持部材と、
金属材料でなり上記両接続部材の上記各支持部材の端部
と対応する位置に一端がそれぞれ固着され他端が上記支
持部材の端部内に嵌合することにより連結された複数の
取付部材と、上記他方の接続部材とこれに隣接する上記
非直線抵抗体との間に介在され上記各非直線抵抗体間に
所定の接触圧力を付勢するバネ部材とを備えた避雷器に
おいて、上記各取付部材の他端側の先端を覆うように固
着された絶縁性材料でなる電界緩和部材を具備したこと
を特徴とする避雷器。3. A cylindrical container made of an insulating material, the both ends of which are sealed by terminal plates, and a pair of plate-shaped connections electrically connected to the both terminal plates and arranged to face each other. A member, a plurality of non-linear resistors sequentially stacked on the one connecting member toward the other connecting member, and an insulating material between the two connecting members around each of the non-linear resistors. A plurality of cylindrical support members arranged so as to bridge
A plurality of attachment members made of a metal material, one end of which is fixed to positions corresponding to the ends of the respective support members of the both connection members, and the other ends of which are connected by being fitted into the ends of the support members; A lightning arrester comprising a spring member interposed between the other connecting member and the non-linear resistor adjacent to the other connecting member, and a spring member for urging a predetermined contact pressure between the non-linear resistors. A lightning arrester comprising an electric field mitigating member made of an insulating material and fixed so as to cover the tip on the other end side.
り突出する厚さ寸法を上記取付部材が支持部材に嵌合さ
れている部分の長さ寸法より大に設定したことを特徴と
する請求項２または３に記載の避雷器。4. The thickness dimension of the electric field mitigating member protruding from the other end of the mounting member is set to be larger than the length dimension of the portion where the mounting member is fitted to the supporting member. The lightning arrester according to claim 2 or 3.
材料でなる筒状の容器と、上記両端子板とそれぞれ電気
的に接続され相対向して配設される一対の板状の接続部
材と、上記一方の接続部材上に上記他方の接続部材に向
かって順次積重された複数の非直線抵抗体と、絶縁性部
材でなり上記各非直線抵抗体の周囲に上記両接続部材間
を橋絡するように配設された複数の筒状の支持部材と、
金属材料でなり上記両接続部材の上記各支持部材の端部
と対応する位置に一端がそれぞれ固着され他端が上記支
持部材の端部内に嵌合することにより連結された複数の
取付部材と、上記他方の接続部材とこれに隣接する上記
非直線抵抗体との間に介在され上記各非直線抵抗体間に
所定の接触圧力を付勢するバネ部材とを備えた避雷器に
おいて、上記各取付部材の他端側を覆うように固着され
た絶縁性材料でなる第１の電界緩和部材、および上記容
器の両端外周部に上記取付部材の他端側先端と同一面ま
でそれぞれ延在し金属材料でなる第２の電界緩和部材を
具備したことを特徴とする避雷器。5. A tubular container made of an insulating material, the both ends of which are sealed with terminal plates, and a pair of plate-shaped connections electrically connected to the both terminal plates and arranged to face each other. A member, a plurality of non-linear resistors sequentially stacked on the one connecting member toward the other connecting member, and an insulating member between the two connecting members around each of the non-linear resistors. A plurality of cylindrical support members arranged so as to bridge
A plurality of attachment members made of a metal material, one end of which is fixed to positions corresponding to the ends of the respective support members of the both connection members, and the other ends of which are connected by fitting into the ends of the support members; A lightning arrester comprising a spring member interposed between the other connecting member and the non-linear resistor adjacent to the other connecting member, and a spring member for urging a predetermined contact pressure between the non-linear resistors. A first electric field mitigating member made of an insulating material that is fixed so as to cover the other end of the container, and a metal material that extends to the outer peripheral portions of both ends of the container to the same plane as the other end of the mounting member. 2. A lightning arrester, comprising:
配設されるフランジ部材のボス部を延長させて第２の電
界緩和部材と兼用させたことを特徴とする請求項５記載
の避雷器。6. A boss portion of a flange member provided for fixing both end plates to both end portions of the container is extended to serve also as a second electric field mitigating member. Lightning arrester.
抵抗体との間に金属材料でなり取付部材が支持部材に嵌
入されている部分の長さ寸法とほぼ等しい厚さ寸法の第
３の電界緩和部材を介装させたことを特徴とする請求項
５または６に記載の避雷器。7. A third member, which is made of a metal material and has a thickness dimension substantially equal to a length dimension of a portion in which the mounting member is fitted into the support member, between the one connection member and the non-linear resistor adjacent to the one connection member. 7. The lightning arrester according to claim 5, wherein the electric field alleviating member is interposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19648596A JP3382094B2 (en) | 1996-07-25 | 1996-07-25 | Surge arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19648596A JP3382094B2 (en) | 1996-07-25 | 1996-07-25 | Surge arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1041105A JPH1041105A (en) | 1998-02-13 |
| JP3382094B2 true JP3382094B2 (en) | 2003-03-04 |
Family
ID=16358572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19648596A Expired - Fee Related JP3382094B2 (en) | 1996-07-25 | 1996-07-25 | Surge arrester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3382094B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100412277B1 (en) * | 2001-05-15 | 2003-12-31 | 주식회사 에이피케이 | Surge arrester |
| JP5015485B2 (en) * | 2006-04-11 | 2012-08-29 | 三菱電機株式会社 | Lightning arrestor |
| KR101099897B1 (en) * | 2007-10-03 | 2011-12-28 | 미쓰비시덴키 가부시키가이샤 | Lightning arrestor |
| JP2010027671A (en) | 2008-07-15 | 2010-02-04 | Mitsubishi Electric Corp | Lightning arrester, and method of manufacturing the same |
-
1996
- 1996-07-25 JP JP19648596A patent/JP3382094B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1041105A (en) | 1998-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5291366A (en) | Surge voltage arrester | |
| US4198538A (en) | Suspension insulator | |
| JP2010225502A (en) | Polymer lightening arrestor | |
| JP3382094B2 (en) | Surge arrester | |
| EP2057641B1 (en) | High voltage bushing | |
| JP2011233819A (en) | Lightning arrestor and method for manufacturing the same | |
| JP6825663B1 (en) | Lightning arrester | |
| JP5200282B2 (en) | Insulating spacer | |
| JP2000100544A (en) | Lightning arrester | |
| JP2983652B2 (en) | Lightning arrester | |
| JP6055269B2 (en) | Electrical equipment connection device | |
| JP3448329B2 (en) | Lightning arrester | |
| JP2009054400A (en) | Capacitor unit and sealed switching device | |
| JP6454511B2 (en) | Lightning arrestor | |
| JP3352566B2 (en) | Bushings for power distribution equipment | |
| JP3543046B2 (en) | Lightning arrester unit and method of manufacturing the same | |
| JPH08186188A (en) | Stud-type semiconductor device | |
| JPS649686B2 (en) | ||
| JP2002222704A (en) | Lightning arrestor | |
| JPH031765B2 (en) | ||
| JP2001008350A (en) | Cable end connector | |
| JPH06162850A (en) | Arretor for power transmission | |
| JPH05258631A (en) | Connecting structure of lightning resistant horn | |
| JPH05260619A (en) | Gas-insulated switching apparatus | |
| JPS62166719A (en) | Insulating spacer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |