JPS60226103A - Surge absorber - Google Patents
Surge absorberInfo
- Publication number
- JPS60226103A JPS60226103A JP8336684A JP8336684A JPS60226103A JP S60226103 A JPS60226103 A JP S60226103A JP 8336684 A JP8336684 A JP 8336684A JP 8336684 A JP8336684 A JP 8336684A JP S60226103 A JPS60226103 A JP S60226103A
- Authority
- JP
- Japan
- Prior art keywords
- linear resistor
- surge absorber
- electrode
- electrode plates
- insulating container
- 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.)
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Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、サイリスタ等の半導体素子、あるい°は他の
電気部品を過電圧から保護するために用いられるサージ
アブソーバ々に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to surge absorbers used to protect semiconductor devices such as thyristors or other electrical components from overvoltage.
サイリスタを電力回路において多数直列接続したシ直並
列接続したりしてサイリスク変換装置を構成する場合、
サイリスクを雷サージ等の過電圧から保膿するために直
流アレスタが用いられている。一方、最近、高性能の非
直線抵抗素子が開発され、従来のイヤツブ付アレスタに
代わって、非直線抵抗素子を用いたギャップレス型のサ
ージアブソーバが提案されている。この種のサージアブ
ソーバ々は複数個のサイリスタに一括して並列に接続す
るか、（１６１ｋのサイリスタにそれぞれ並列接続する
かして用いられる。第２図は後者の例を示すものである
。When configuring a thyristor converter by connecting a large number of thyristors in series or in parallel in a power circuit,
DC arresters are used to protect Cylisk from overvoltages such as lightning surges. On the other hand, recently, high-performance non-linear resistance elements have been developed, and gapless type surge absorbers using non-linear resistance elements have been proposed in place of conventional ear arresters. This type of surge absorber is used either by connecting a plurality of thyristors in parallel, or by connecting each of them in parallel with 161k thyristors. FIG. 2 shows an example of the latter.
第２図は送電線路での適用例を示すもので、線路端子Ａ
とＢとの間に複数個の直列接続されたサイリスタ／が１
．力変換装置の一部または全部として設けられている。Figure 2 shows an example of application to a power transmission line, where line terminal A
A plurality of thyristors/are connected in series between and B.
．． Provided as part or all of the force transducer.
図示の個々のサイリスタ／は／測寸たけ複数個のサイリ
スタ素子から々っているものとする。各サイリスタ／に
はそれぞれコンデンサλおよび抵抗３の直列接続体から
なるスナバ回路とサージアブソーバぐ５とが並列に接続
されている。線路と大地間に存在するストレイキャパシ
タンスは各サイリスタの接続点と大地との間に分布して
符号弘で示されている。It is assumed that each thyristor shown in the figure consists of a plurality of thyristor elements. A snubber circuit consisting of a series connection of a capacitor λ and a resistor 3 and a surge absorber 5 are connected in parallel to each thyristor. Stray capacitance existing between the line and the ground is distributed between the connection point of each thyristor and the ground and is indicated by the symbol Hiroshi.
第２図の回路に端子ＡｔたはＢから雷サージ電 ４圧ま
たは開閉サージ電圧が侵入した時、何らかの原因でサー
ジアブソーバ々５が異常を来たして破壊すると、サイリ
スタの場合とは異なシ、サージアブソーバｊはアーク電
圧が高いため注入エネルギーが増大し、その結果として
容器を破壊し、アークが外部に放出され、周辺機器に悪
影響を及はし、事故の拡大に至る危険がめった。When lightning surge voltage 4 voltage or switching surge voltage enters the circuit shown in Figure 2 from terminal At or B, if the surge absorbers 5 malfunction and break down for some reason, a surge voltage different from that of a thyristor will occur. Because the absorber j had a high arc voltage, the energy injected increased, resulting in the destruction of the container, the arc being emitted to the outside, adversely affecting peripheral equipment, and increasing the risk of an accident.
本発明は前述の不都合を除去するためになされたもので
、爆発するおそれのないサージアブソーバ々を提供する
ことを目的とするものである。The present invention has been made to eliminate the above-mentioned disadvantages, and it is an object of the present invention to provide surge absorbers that are free from explosion.
前記目的を達成するために本発明は、抵抗率の低い金属
材料片と融点の低い可溶金属材料片とを混入させた金属
材料からなる短絡金属を、溶融することによシ両電極板
の相互間を短絡しうるように両電極板の間に若干のギャ
ップを介して配設したことを特徴とするものである。こ
の構成によれば、サージの侵入により容器内の非直線抵
抗体が破壊され、アークが発生すると、短絡金属が溶融
して両電極板の間に溶融金属による橋絡路が出来、それ
によってｔ極板間のインピーダンスを下げ、注入エネル
ギーを減少させ、サージアブソーバ々の掘黙、欺怪ル炸
１１手入？シ萌；〒１Ｌさらに本発明は、上述の作用効
果を一層向上させるために、抵抗率の低い金Ｎ、Ｉ相片
と酸点の低い可溶金１ｆＡＩ料片とを混入させた金属拐
料を融点の低い絶縁物を間に挾んで少なくとも３層に成
層してなる短絡部材を、溶融することによシ両電極板相
互間を短絡し得るように両電極板の間に非直線抵抗体の
周囲に隙間ケもたせて介挿すると共に、融点の高い絶縁
物からなる熱保護部材を絶縁容器に内側に設けたことを
特徴とするものである。In order to achieve the above-mentioned object, the present invention provides a method for forming both electrode plates by melting a short-circuit metal made of a metal material mixed with a piece of a metal material having a low resistivity and a piece of a fusible metal material having a low melting point. This is characterized in that both electrode plates are disposed with a slight gap between them so that they can be short-circuited. According to this configuration, when the non-linear resistor in the container is destroyed by the intrusion of a surge and an arc is generated, the short circuit metal melts and a bridge path of molten metal is created between the two electrode plates, thereby causing the t-electrode plate to Lower the impedance between them, reduce the injection energy, ignore the surge absorbers, and prepare the 11 deceptive explosions? Furthermore, in order to further improve the above-mentioned effects, the present invention uses a metallizing material mixed with gold N and I phase pieces having low resistivity and soluble gold 1fAI pieces having low acid points. A short-circuiting member made of at least three layers with an insulating material having a low melting point sandwiched therebetween is placed between the two electrode plates around the non-linear resistor so as to short-circuit the two electrode plates by melting the short-circuiting member. It is characterized in that it is inserted with a gap and a heat protection member made of an insulating material with a high melting point is provided inside the insulating container.
本発明の一実施例を、第１図を参照して説明する。この
サージアブソーバは円筒状のセラミック製絶縁容器６と
、その両開口端を塞ぐ蓋材を兼ねる一対の金属製電極板
７ａ、７ｂとで密閉容器を形成している。両電極板７ａ
、７ｂの間に挾持される形で酸化亜鉛（ＺｎＯ）などか
らなる円筒状の非直線抵抗体ｔが配設されている。密閉
容器内にはさらに非直線抵抗体ざおよび絶縁容器６との
間にそれぞれ若干の隙間りを形成し、かつギャップ２′
を介して非直線抵抗体ｌに並列分路を形成するように両
電極板７ａ 、 ７ ｂの間に短絡金属／／が設けられ
ている。短絡金属／ｌは電極板７ ａ ＋ ７ ｂに接
触する低抵抗率の、たとえば銅からなる通電材料ＩＯを
芯とし、これを覆うように設けられた溶融部１０’を持
っている。この溶融部１０’は融点の低い可溶金属材料
、たとえば鉛合金と、低抵抗率の金属材料、たとえば通
電材料ＩＯと同種の銅材、の小片とを混入させたものか
らなっている。An embodiment of the present invention will be described with reference to FIG. This surge absorber forms a closed container with a cylindrical ceramic insulating container 6 and a pair of metal electrode plates 7a and 7b which also serve as lids that close both open ends of the container. Both electrode plates 7a
, 7b, a cylindrical nonlinear resistor t made of zinc oxide (ZnO) or the like is disposed. In the sealed container, a slight gap is formed between the nonlinear resistor and the insulating container 6, and a gap 2' is formed between the nonlinear resistor and the insulating container 6.
A short-circuit metal // is provided between both electrode plates 7a, 7b so as to form a parallel shunt to the non-linear resistor l via. The shorting metal /l has a core made of a low-resistivity current-carrying material IO made of copper, for example, which contacts the electrode plates 7 a + 7 b, and has a fused portion 10 ′ provided so as to cover this. The melting section 10' is made of a mixture of a fusible metal material with a low melting point, such as a lead alloy, and a small piece of a metal material with a low resistivity, such as a copper material of the same type as the current-carrying material IO.
このように構成されたサージアブソー・々を電力系統に
配設した状態で大きなエネルギーのサージが侵入し、非
直線抵抗体♂が注入エネルギーに耐えられガくなると非
直線抵抗体♂は貫通状態になる。このような貫通状態で
のアーク電圧はサイリスクなどの場合と異なシ比較的高
いため、注入エネルギーはかなシ大きい。このとき短絡
金属が設けられていなければ、アークによって電極板７
ａ＋７１）が焼損したシ、内圧上昇によシ絶縁容器６が
破壊し、容器外にアークが飛出して容器沿面をはった状
態でアークが継続したシする。このような状態はサイリ
スタ／（第２図）の運転が停止するまで継続し、サージ
アブソーバ々の周辺機器に被害を及ばずおそれがある訳
である。When a surge of large energy invades a surge absorber configured in this way and installed in the power system, and the non-linear resistor ♂ becomes unable to withstand the injected energy, the non-linear resistor ♂ enters a penetrating state. . The arc voltage in such a penetrating state is relatively high, unlike in cases such as Cyrisk, so the injection energy is quite large. At this time, if no short-circuiting metal is provided, the electrode plate 7 is caused by an arc.
A+71) was burnt out, the insulating container 6 was destroyed due to the increase in internal pressure, and the arc jumped out of the container and continued along the surface of the container. Such a state will continue until the operation of the thyristor (FIG. 2) is stopped, and there is a risk of damage to peripheral devices such as the surge absorber.
しかし、本発明による第１図のサージアブソーバにおい
ては、アークが短絡金属／／に直接触れるか、またはア
ーク熱が及ぶと、短絡金属ｌ／の溶融部１０’が溶融し
、両電極板７ａ＋７’ｂ間がその溶融した短絡金属によ
って橋絡される。この結果、アークは消滅し、容器の外
に飛出すことはない。また、アーク消滅によシ容器内圧
の上昇も抑制されることになる。アーク消滅後の回路電
流は抵抗率の低い通電材料１０およびその小片を通って
流れるので発熱量は良好に抑えることができる。因に、
銅の抵抗率は鉛のそれの約／／、２である。回路電流の
通電時間はサイリスタ／（第２図）の動作いかんによっ
て決まるが、一般的には数百ｍｓで異常が検出され、そ
の後で回路電流制御が行われる。However, in the surge absorber of FIG. 1 according to the present invention, when the arc directly touches the short-circuit metal // or when the arc heat reaches the melted portion 10' of the short-circuit metal l/, the melted portion 10' of the short-circuit metal l/ melts, and both electrode plates 7a+7' b is bridged by the molten shorting metal. As a result, the arc is extinguished and does not fly out of the container. Moreover, the rise in the internal pressure of the container is also suppressed due to the extinction of the arc. After the arc is extinguished, the circuit current flows through the current-carrying material 10 with low resistivity and its small pieces, so that the amount of heat generated can be suppressed well. Incidentally,
The resistivity of copper is about //,2 that of lead. Although the circuit current conduction time is determined by the operation of the thyristor (FIG. 2), an abnormality is generally detected in several hundred milliseconds, after which circuit current control is performed.
非直線抵抗体ｒの最も多いと思われる破壊パターンの一
例として亀裂１２を入れて通電試験を行ったときの様子
を第３図に示す。この場合、溶融部ｌグが溶融して両側
の短絡金属／／ 、 ／／が互いに接触し、両電極板７
ａ、７ｂ間を短絡することによシ、爆発を生じたシする
ことなく、数百ｍＳの時間、数千アンペアの回路電流を
通電することができた。As an example of the most common fracture pattern of the non-linear resistor r, FIG. 3 shows the state when a crack 12 is made and an energization test is conducted. In this case, the molten part lg melts and the short-circuit metals // and // on both sides come into contact with each other, and both electrode plates 7
By short-circuiting between a and 7b, a circuit current of several thousand amperes could be passed for a period of several hundred milliseconds without causing an explosion.
第１図のサージアブソーバが正常な状態では通電前後と
も第１図の形状を維持し、本来のサージアブソーバとし
て動作することは言うまでもない。It goes without saying that in a normal state, the surge absorber shown in FIG. 1 maintains the shape shown in FIG. 1 both before and after energization, and operates as an original surge absorber.
第１図は本発明の他の実施例を示すものである。FIG. 1 shows another embodiment of the invention.
この実施例においては、抵抗率の低い、たとえば銅のよ
うな材料からなる金属材料片と融点の低い、たとえば鉛
合金からなる可溶金属材料片とを混入させた可溶材料ｌ
コを、融点の低い絶縁物／３、たとえば／７０ ’Ｃ程
度の融点を持つポリプロピレン材を間に挾んで少なくと
も３層に成層してなる短絡部材ｌＩ／−を両電極板７ａ
、７ｂの間に介挿している。In this embodiment, a fusible material l is mixed with a piece of metal material having a low resistivity, such as copper, and a piece of a fusible metal material having a low melting point, such as a lead alloy.
Both electrode plates 7a are made of a short-circuiting member lI/- made of at least three layers with an insulator with a low melting point of /3, for example, a polypropylene material with a melting point of about /70'C sandwiched between the electrodes.
, 7b.
短絡部材ｌｌｌと非直線抵抗体ざとの間には隙間りがあ
けられ、短絡部拐／ｑと絶縁容器６との間には融点の高
い絶縁物、たとえばフッ素樹脂系絶縁物からなる熱保護
部材／Ｓが配設されている。A gap is provided between the shorting member lll and the nonlinear resistor, and a thermal protection member made of an insulator with a high melting point, such as a fluororesin insulator, is provided between the shorting member lll and the nonlinear resistor. /S is installed.
第ｖ図のサージアブソーバにアークが発生すると、その
発熱によって可溶材料１２が溶融し、さらに絶縁物１３
も連鎖的に溶融して隙間りに流れ込み、ついには両電極
板７ａ、７ｂ間がその溶融物によって短絡されるに至る
。ここで絶縁物１３は、非直線抵抗体ｒに持続性異常電
圧が短時間印加されたときの発熱温度（実験によれば約
／ｊＯ°Ｃ）では溶融せずに絶縁性を発揮し、アーク発
生時にはそのアーク熱によシ容易に溶融し、ガス状態と
なって絶縁性を失う。その場合、絶縁物／３の溶融箇所
は一部分でめシ、そのため発生ガス量はわずかであって
絶縁容器乙の内圧を上昇させるほどにはならない。また
絶縁容器乙の内側には融点の高い絶縁物からなる熱保護
部材ｌりが設けられているため、可溶材料１２の温度上
昇による絶縁容器６の熱損傷を抑制することができる。When an arc occurs in the surge absorber shown in FIG.
The melt also melts in a chain and flows into the gap, and eventually the electrode plates 7a and 7b are short-circuited by the melt. Here, the insulator 13 exhibits insulating properties without melting at the heat generation temperature (approx. When generated, it easily melts due to the arc heat, becomes a gas, and loses its insulation properties. In this case, the melted portion of the insulator /3 is only a portion, so the amount of gas generated is small and does not increase the internal pressure of the insulating container B. Furthermore, since a heat protection member made of an insulator with a high melting point is provided inside the insulating container B, thermal damage to the insulating container 6 due to a rise in temperature of the fusible material 12 can be suppressed.
このサージアブソーバＳも第１図のものと同様にアーク
発生時の容器爆発を防止することかできる。This surge absorber S, like the one shown in FIG. 1, can also prevent a container from exploding when an arc occurs.
第５図は本発明のさらに異なる他の実施例を示すもので
ある。この構成の特徴は、両電極板７ ａ ＋７ｂのう
ち、非直線抵抗体♂と接触する部分を非直線抵抗体を側
にわずかに突出させ、その突出部に中空部Ｘを構成する
と共に、そのまわシを短絡金属／ｌで取囲んでいること
にある。他の構成部分は実質的に第１図のものと変わり
がない。FIG. 5 shows yet another embodiment of the present invention. The feature of this configuration is that the part of both electrode plates 7 a + 7 b that contacts the non-linear resistor ♂ is slightly protruded to the side of the non-linear resistor, and a hollow part X is formed in the protruding part. The reason lies in that the area is surrounded by short-circuit metal/l. The other components are substantially the same as those in FIG.
非直線抵抗体との中央で発生したアーク２１は一般に中
央でのみ継続して、周囲へは移行しない傾向にあるが、
ａＦｊ図のごとく中空部３を形成することによシ、電極
板７ ａ、 ＋ ７１）のアーク発生箇所に、第６図に
示すように電極溶融部−コすなわち電極劇刺の無い部分
が生じ、さらにアークの継続により第７図に示すように
電極溶融部二が拡大してアークは周辺へと移動して行く
。このようにしてアークの周囲への移動を早め、短絡金
属／ｌの溶融開始時間を庁＜シ、アークを速かに消滅さ
せてサージアブソーノ々の爆発を防止することができる
。The arc 21 that occurs at the center with the non-linear resistor generally continues only at the center and tends not to migrate to the surroundings.
By forming the hollow part 3 as shown in Fig. aFj, an electrode melting part -k, that is, a part without electrode pricks, is created at the arc generation location of the electrode plate 7a, +71) as shown in Fig. 6. Further, as the arc continues, the electrode melting portion 2 expands as shown in FIG. 7, and the arc moves toward the periphery. In this way, the movement of the arc to the surroundings is accelerated, the melting start time of the short-circuited metal/l is reduced, the arc is quickly extinguished, and the explosion of surge absorbers can be prevented.
中空部２０は文字とおシ中空のままにしてもよいが、場
合によってはそこに絶縁物を埋設しても上記と同等の作
用効果を発揮することができる。The hollow portion 20 may be left as is, but in some cases an insulating material may be buried therein to achieve the same effect as described above.
第５図のサージアブソーノにおいて、電極板７ａ 、７
ｂの非直線抵抗体ざに接触する面に、第ｒ図に示すよう
に、その接触面と平行に走る溝コ３を形成することによ
り、アークによシ溶融する部分を局部に限定することが
でき、それにより周辺へのアーク移動を一層早くシ、短
絡金属の溶融開始時間を早くしてアーク全速かに消滅さ
せ、サージアブソー・々の爆発をより安全に防止するこ
とができる。In the surge absorption sensor shown in FIG. 5, the electrode plates 7a, 7
By forming a groove 3 running parallel to the contact surface on the surface that contacts the non-linear resistor (b) as shown in FIG. r, the portion that is melted by the arc is limited to a local area. As a result, the arc moves to the surrounding area more quickly, the melting start time of the short-circuited metal is accelerated, the arc is extinguished at full speed, and explosions of surge absorbers etc. can be more safely prevented.
第２図は、非直線抵抗体と＆触する部分をリング電極、
２６とした電極板Ｊの実施例を示すものである。このよ
うにリング電極とすることによυ、非直線抵抗体が破壊
し、アークが発生したときのアークの始点および終点を
非直線抵抗体の周辺部に限定させることができ、それに
よシアークによる熱をさらに早く短絡金属または短絡部
材に伝達させてそれをより早く溶融させ、アークの一層
速かな消滅を図ることができる。Figure 2 shows the part that touches the non-linear resistor as a ring electrode.
This figure shows an example of an electrode plate J having a size of 26. By using a ring electrode in this way, when the non-linear resistor breaks down and an arc occurs, the starting and ending points of the arc can be limited to the periphery of the non-linear resistor. Heat can be transferred to the shorting metal or shorting member more quickly, causing it to melt more quickly and extinguishing the arc more quickly.
非直線抵抗体ないし非直線抵抗素子自体は公知であシ、
前述のＺｎＯからなるもののほかにもたとえば８１０な
ど、他の組成のものを用いてもよい。The non-linear resistor or non-linear resistive element itself is known,
In addition to the above-mentioned ZnO material, materials having other compositions such as 810 may also be used.
以上述べたように本発明によれば、サージ侵入によシサ
ージアブソーパにアークを発生した場合、短絡金属また
は短絡部材の作用によってアークを速かに消滅させ、そ
れにより容器の爆発を防止し、送配嘗装慟や開−・１装
置の信頼性を一層向上させることができる。As described above, according to the present invention, when an arc is generated in the scissor absorber due to surge intrusion, the arc is quickly extinguished by the action of the shorting metal or shorting member, thereby preventing explosion of the container. Therefore, the reliability of the delivery, packaging and opening equipment can be further improved.
第１図は本発明の一実施例を示す一部断面側面図、
第、２図社サージアブソーバを設けたダイリスタ変換装
置を示す回路接続図、
第３図は第１図のサージアブソーバの短絡金属溶融状態
を示す一部断面側面図、
第ｖ図は本発明の他の実施例を示す一部り面側面図、
第５図は本発明のさらに他の実施例を示す縦断面図、
第６図、第７図は第５図のサージアブソー７９における
電極板のアークによる溶融過程を説明するための説明図
、
第♂ピ１は第５図のツージアゾソーパにおける電極板に
溝を形成した例を示す斜視図、
第７図はｆｉｒ、１２板にリング電極を形成した例を示
す斜視図である。
６・・・絶縁容器、７ａ、７ｂ、ユＳ・・・電極板、ｔ
・・・非直線抵抗体、り・・・隙間、２′・・・ｊ、δ
ヤップ、７ｋ・・短絡仝２屈、１３・・・低融点絶縁物
、ｔｐ・・短絡部材、／Ｓ・・高融点絶縁物、２０・・
・中空部１，１３・・・溝、λ乙・・・リング電極。
出ｖ人代理人 猪 股 消
第１図
第２図
第３図
第４図
第５図
第６図
第７図
’／ｌ） ８ ７１ ｌＵ
第８図
２］
第９図Fig. 1 is a partially cross-sectional side view showing an embodiment of the present invention; Fig. 2 is a circuit connection diagram showing a diristor conversion device equipped with a company surge absorber; Fig. 3 is a short-circuit metal of the surge absorber shown in Fig. 1. FIG. 5 is a partial cross-sectional side view showing another embodiment of the present invention; FIG. Figure 7 is an explanatory diagram for explaining the melting process of the electrode plate in the surge absorber 79 in Figure 5 due to the arc, and Figure ♂Pi 1 is a perspective view showing an example in which grooves are formed in the electrode plate in the two-diazo soaper in Figure 5. FIG. 7 is a perspective view showing an example in which ring electrodes are formed on 12 fir plates. 6... Insulating container, 7a, 7b, YuS... Electrode plate, t
...Nonlinear resistor, Ri...Gap, 2'...j, δ
Yap, 7k...Short circuit, 2 bends, 13...Low melting point insulator, tp...Short circuit member, /S...High melting point insulator, 20...
・Hollow parts 1, 13...Groove, λO...Ring electrode. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7'/l) 8 71 lU Figure 8 2] Figure 9
Claims (1)
された一対の電極板と、前記絶縁容器内において前記両
電極板の間に介挿された非直線抵抗体と、抵抗率の低い
金属材料片と融点の低い可溶金属材料片とを混入させた
金属材料からなシ、溶融することによシ前記両電極板相
互間を短絡し得るように前記両電極板の間に若干のギャ
ップを介して配設された短絡金属とを備えてなるサージ
アブソーノ９゜ コ、電極板の、非直線抵抗体と接触する部分に、中空部
または絶縁層が介在されている特許請求の範囲第１項記
載のサージアブソー・ｚ。 ３、電極板の、非直線抵抗体と接触する表面に、その表
面と平行に走る溝が形成されている特許槽重の箭Ｂ１１
Ｉ笛ｊ頂ロー鯖の廿−一ン了ザソー、々−グ、電極板の
、非直線抵抗体と接触する部分がリング電極として構成
されている特許請求の範囲第１項記載のサージアブソー
ノ々。 ｊ、筒状の絶縁容器と、この絶縁容器の両開口端に配設
された一対の電極板と、前記絶縁容器内において前記両
電極板の間に介挿された非直線抵抗体と、抵抗率の低い
金属材料片と融点の低い可溶金属材料片とを混入させた
可溶材料を融点の低い絶縁−を間に挾んで少なくとも３
層に成層して寿り、溶融することにより前記両軍極板相
互間を短絡し得るように前記両電極板の間に前記非直線
抵抗体の周囲に隙間をもたせて介挿された短絡部材と、
融点の高い絶縁物からなシ、前記短絡部桐と絶縁容器と
の間に配設された熱保獲部材とを備えてなるサージアブ
ソー・々。 ６、電極板の、非直線抵抗体と接触する部分に、中空部
または絶縁層が介在されている特許請求の範囲第５項記
載のサージアブソー・々。 ７、′電極板の、非直線抵抗体と接触する表面に、その
表面と平行に走る溝が形成されている特許請求の範囲第
６項記載のサージアブソーバ。 ♂、電極板の、非直線抵抗体と接触する部分がリング電
極として構成されている特許請求の範囲第Ｓ項記載のサ
ージアブソーバ。[Claims] / A cylindrical insulating container, a pair of electrode plates disposed at both open ends of the insulating container, and a non-linear resistor inserted between the electrode plates in the insulating container. The electrode plate is made of a metal material in which a piece of a metal material with a low resistivity and a piece of a fusible metal material with a low melting point are mixed together. A surge absorber 9° comprising a short-circuiting metal arranged with a slight gap between the electrode plates, and a patent in which a hollow part or an insulating layer is interposed in the part of the electrode plate that contacts a non-linear resistor. A surge absorber z according to claim 1. 3. Patented Tankju's B11 in which grooves running parallel to the surface of the electrode plate in contact with the non-linear resistor are formed.
The surge absorber according to claim 1, wherein the portion of the electrode plate that contacts the non-linear resistor is configured as a ring electrode. j, a cylindrical insulating container, a pair of electrode plates disposed at both open ends of the insulating container, a non-linear resistor inserted between the two electrode plates in the insulating container, and a resistivity A fusible material consisting of a piece of a metal material with a low melting point and a piece of a fusible metal material with a low melting point is mixed with a piece of a fusible metal material with a low melting point.
a short-circuiting member inserted between the two electrode plates with a gap around the non-linear resistor so as to be able to short-circuit the two electrode plates by layering and melting;
A surge absorber, etc., comprising an insulating material having a high melting point, and a heat retention member disposed between the short circuit part paulownia and an insulating container. 6. The surge absorber according to claim 5, wherein a hollow portion or an insulating layer is interposed in the portion of the electrode plate that contacts the non-linear resistor. 7.' The surge absorber according to claim 6, wherein a groove running parallel to the surface of the electrode plate in contact with the non-linear resistor is formed on the surface thereof. The surge absorber according to claim S, wherein a portion of the electrode plate that contacts the non-linear resistor is configured as a ring electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8336684A JPS60226103A (en) | 1984-04-25 | 1984-04-25 | Surge absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8336684A JPS60226103A (en) | 1984-04-25 | 1984-04-25 | Surge absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60226103A true JPS60226103A (en) | 1985-11-11 |
Family
ID=13800424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8336684A Pending JPS60226103A (en) | 1984-04-25 | 1984-04-25 | Surge absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60226103A (en) |
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|---|---|---|---|---|
| JP2007165912A (en) * | 2005-12-15 | 2007-06-28 | Raycap Corp | Overvoltage protection equipment equipped with wafer of varistor material |
| US8743525B2 (en) | 2012-06-19 | 2014-06-03 | Raycap Intellectual Property, Ltd | Overvoltage protection devices including wafer of varistor material |
| US9906017B2 (en) | 2014-06-03 | 2018-02-27 | Ripd Research And Ip Development Ltd. | Modular overvoltage protection units |
| US10319545B2 (en) | 2016-11-30 | 2019-06-11 | Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o. | Surge protective device modules and DIN rail device systems including same |
| US10340110B2 (en) | 2017-05-12 | 2019-07-02 | Raycap IP Development Ltd | Surge protective device modules including integral thermal disconnect mechanisms and methods including same |
| US10447026B2 (en) | 2016-12-23 | 2019-10-15 | Ripd Ip Development Ltd | Devices for active overvoltage protection |
| US10685767B2 (en) | 2017-09-14 | 2020-06-16 | Raycap IP Development Ltd | Surge protective device modules and systems including same |
| US10707678B2 (en) | 2016-12-23 | 2020-07-07 | Ripd Research And Ip Development Ltd. | Overvoltage protection device including multiple varistor wafers |
| US11223200B2 (en) | 2018-07-26 | 2022-01-11 | Ripd Ip Development Ltd | Surge protective devices, circuits, modules and systems including same |
| US11723145B2 (en) | 2021-09-20 | 2023-08-08 | Raycap IP Development Ltd | PCB-mountable surge protective device modules and SPD circuit systems and methods including same |
| US11862967B2 (en) | 2021-09-13 | 2024-01-02 | Raycap, S.A. | Surge protective device assembly modules |
| US11990745B2 (en) | 2022-01-12 | 2024-05-21 | Raycap IP Development Ltd | Methods and systems for remote monitoring of surge protective devices |
-
1984
- 1984-04-25 JP JP8336684A patent/JPS60226103A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101313228B1 (en) * | 2005-12-15 | 2013-09-30 | 레이캡 코포레이션 | Overvoltage protection devices including wafer of varistor material |
| JP2007165912A (en) * | 2005-12-15 | 2007-06-28 | Raycap Corp | Overvoltage protection equipment equipped with wafer of varistor material |
| US8743525B2 (en) | 2012-06-19 | 2014-06-03 | Raycap Intellectual Property, Ltd | Overvoltage protection devices including wafer of varistor material |
| US9906017B2 (en) | 2014-06-03 | 2018-02-27 | Ripd Research And Ip Development Ltd. | Modular overvoltage protection units |
| US10340688B2 (en) | 2014-06-03 | 2019-07-02 | Ripd Ip Assets Ltd | Modular overvoltage protection units |
| US10734176B2 (en) | 2016-11-30 | 2020-08-04 | Raycap, Surge Protective Devices, Ltd. | Surge protective device modules and DIN rail device systems including same |
| US10319545B2 (en) | 2016-11-30 | 2019-06-11 | Iskra Za{hacek over (s)}{hacek over (c)}ite d.o.o. | Surge protective device modules and DIN rail device systems including same |
| US11165246B2 (en) | 2016-12-23 | 2021-11-02 | Ripd Research And Ip Development Ltd. | Overvoltage protection device including multiple varistor wafers |
| US10707678B2 (en) | 2016-12-23 | 2020-07-07 | Ripd Research And Ip Development Ltd. | Overvoltage protection device including multiple varistor wafers |
| US10447026B2 (en) | 2016-12-23 | 2019-10-15 | Ripd Ip Development Ltd | Devices for active overvoltage protection |
| US11374396B2 (en) | 2016-12-23 | 2022-06-28 | Ripd Research And Ip Development Ltd. | Devices for active overvoltage protection |
| US11881704B2 (en) | 2016-12-23 | 2024-01-23 | Ripd Research And Ip Development Ltd. | Devices for active overvoltage protection including varistors and thyristors |
| US10679814B2 (en) | 2017-05-12 | 2020-06-09 | Raycap IP Development Ltd | Surge protective device modules including integral thermal disconnect mechanisms and methods including same |
| US10340110B2 (en) | 2017-05-12 | 2019-07-02 | Raycap IP Development Ltd | Surge protective device modules including integral thermal disconnect mechanisms and methods including same |
| US10685767B2 (en) | 2017-09-14 | 2020-06-16 | Raycap IP Development Ltd | Surge protective device modules and systems including same |
| US11223200B2 (en) | 2018-07-26 | 2022-01-11 | Ripd Ip Development Ltd | Surge protective devices, circuits, modules and systems including same |
| US11862967B2 (en) | 2021-09-13 | 2024-01-02 | Raycap, S.A. | Surge protective device assembly modules |
| US11723145B2 (en) | 2021-09-20 | 2023-08-08 | Raycap IP Development Ltd | PCB-mountable surge protective device modules and SPD circuit systems and methods including same |
| US11990745B2 (en) | 2022-01-12 | 2024-05-21 | Raycap IP Development Ltd | Methods and systems for remote monitoring of surge protective devices |
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