JPH02256110A - Arc-extringuishing material and circuit breaker - Google Patents
Arc-extringuishing material and circuit breakerInfo
- Publication number
- JPH02256110A JPH02256110A JP16772289A JP16772289A JPH02256110A JP H02256110 A JPH02256110 A JP H02256110A JP 16772289 A JP16772289 A JP 16772289A JP 16772289 A JP16772289 A JP 16772289A JP H02256110 A JPH02256110 A JP H02256110A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- melamine resin
- caprolactam
- produced
- circuit breaker
- 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
- 239000000463 material Substances 0.000 title abstract description 5
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 34
- 239000004640 Melamine resin Substances 0.000 claims abstract description 33
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 16
- 239000003365 glass fiber Substances 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 125000000962 organic group Chemical group 0.000 abstract description 5
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 abstract description 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 4
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 238000000197 pyrolysis Methods 0.000 description 8
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 229920000306 polymethylpentene Polymers 0.000 description 2
- 239000011116 polymethylpentene Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、アークを消弧する消弧体および回路しゃ断
器に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an arc extinguisher and a circuit breaker for extinguishing an arc.
第３図ないし第５図に従来例を示す。すなわち、第３図
の回路しゃ断器の消弧装置は、切欠部５０を有する磁性
体のグリッド板５１を複数枚間隔をおいて積層するよう
に支持板５８に支持させたものである。５２は可動接触
子、５３は固定接触子、５４はトリップ開閉機構部、５
５はケース、５６は可動接点、５７ば固定接点である。Conventional examples are shown in FIGS. 3 to 5. That is, the arc extinguishing device for a circuit breaker shown in FIG. 3 has a plurality of magnetic grid plates 51 having notches 50 supported by a support plate 58 so as to be stacked at intervals. 52 is a movable contact, 53 is a fixed contact, 54 is a trip opening/closing mechanism, 5
5 is a case, 56 is a movable contact, and 57 is a fixed contact.
この回路しゃ断器の消弧装置は、回路しゃ断時に固定接
触子５３と可動接触子５２の各々に配設された固定接点
５７と可動接点５６との間にアークが発生し、そのアー
クに流れる電流によって発生する磁束がグリッド板５１
に流れて切欠部５０を通過しアークに鎖交する。そのと
きアークに磁気駆動力が作用しアークはグリッド板５１
に引き込まれ、グリッド板５１によって分割され、冷却
作用を受は消弧となる。In this circuit breaker arc extinguishing device, an arc is generated between a fixed contact 57 and a movable contact 56 disposed on each of a fixed contact 53 and a movable contact 52 when the circuit is cut off, and a current flows through the arc. The magnetic flux generated by the grid plate 51
It flows through the notch 50 and interlinks with the arc. At that time, a magnetic driving force acts on the arc, and the arc moves towards the grid plate 51.
The arc is drawn in, divided by the grid plate 51, and subjected to a cooling action, causing the arc to be extinguished.
また、第４図および第５図に示す回路しゃ断器の消弧体
（たとえば特願昭６１−１２０７０１号）は、内面を成
形体６３で被覆した逆Ｕ字形の磁性体６０で可動接触子
６１と固定接触子６２を覆うように配設したものである
。Ｘはアークである。接点６４゜６５間に発生したアー
クは磁性体６０による磁気駆動力によって十分に引き伸
ばされるため、アーク電圧は上昇する。さらにアークＸ
の熱により成形体６３から熱分解ガスが発生し、熱分解
ガスのアーク冷却作用によってアークＸは冷却される。Further, the arc extinguishing body of the circuit breaker shown in FIGS. 4 and 5 (for example, Japanese Patent Application No. 120701/1986) is an inverted U-shaped magnetic body 60 whose inner surface is covered with a molded body 63. and the fixed contact 62 are arranged so as to cover it. X is an arc. Since the arc generated between the contacts 64 and 65 is sufficiently stretched by the magnetic driving force of the magnetic body 60, the arc voltage increases. Furthermore, Arc X
Pyrolysis gas is generated from the compact 63 due to the heat, and the arc X is cooled by the arc cooling action of the pyrolysis gas.
すると熱的ピンチ効果でアークの径が収縮し断面積が減
少するので、アーク抵抗が増加し、その結果アーク電圧
はさらに上昇することになる。成形体６３の材料として
は、熱分解ガスを発生しやすい点から熱可塑性樹脂では
ポリメチルメタクリレト樹脂、ポリブチレンテレフタレ
ート樹脂、ポリメチルペンテン樹脂などが用いられ、ま
た熱硬化性樹脂ではユリア樹脂、メラミン樹脂などが用
いられている。Then, the diameter of the arc contracts due to the thermal pinch effect and the cross-sectional area decreases, so the arc resistance increases, and as a result, the arc voltage further increases. As the material for the molded body 63, thermoplastic resins such as polymethyl methacrylate resin, polybutylene terephthalate resin, and polymethylpentene resin are used because they tend to generate thermal decomposition gas, and thermosetting resins such as urea resin and polymethyl pentene resin are used. Melamine resin is used.
第３図の消弧装置は、グリッド板５１によるアークの引
き伸ばし効果が不十分であり、また消弧装置自体が大き
くなり、コスト高になるという欠点があった。The arc extinguishing device shown in FIG. 3 has the disadvantage that the arc stretching effect by the grid plate 51 is insufficient, and the arc extinguishing device itself becomes large and costly.
一方、第４図および第５図の消弧体は、第３図のグリッ
ド板５１と比較して、より簡単な構造でしかも優れたア
ーク消弧性能を有している。On the other hand, the arc extinguishing body shown in FIGS. 4 and 5 has a simpler structure and superior arc extinguishing performance than the grid plate 51 shown in FIG. 3.
ところが、この消弧装置は、消弧体６３の成形材料が炭
化水素よりなる高分子材料であるため、アークの熱によ
って熱分解ガスとともにカーボンが生成され、それが回
路しゃ断器のケースの表面に付着して絶縁耐圧の劣化を
招くという欠点があった。However, in this arc extinguishing device, since the molding material of the arc extinguishing body 63 is a polymeric material made of hydrocarbon, carbon is generated together with pyrolysis gas due to the heat of the arc, which is deposited on the surface of the circuit breaker case. This has the disadvantage that it adheres and causes deterioration of dielectric strength.
したがって、この発明の目的は、カーボンの生成を防止
するとともにさらに熱分解ガスの発生を促進することが
できる消弧体および回路しゃ断器を提供することである
。Therefore, an object of the present invention is to provide an arc extinguisher and a circuit breaker that can prevent the generation of carbon and further promote the generation of pyrolysis gas.
請求項（１）の消弧体は、ε−カプロラクタムおよび水
酸化アルミニウムを含有したメラミン樹脂により形成さ
れたことを特徴とするものである。The arc extinguishing body according to claim (1) is characterized in that it is formed of a melamine resin containing ε-caprolactam and aluminum hydroxide.
添加量について、ε−カプロラクタムは０．５〜１５重
景％、水酸化アルミニウムは１〜３０重景％が好ましい
。Regarding the amount of addition, ε-caprolactam is preferably 0.5 to 15% by weight, and aluminum hydroxide is preferably 1 to 30% by weight.
請求項（２）の消弧体は、メラミン樹脂にガラス繊維を
含有したものである。その含有量は１〜３０重景％が好
ましい。The arc extinguishing body according to claim (2) contains glass fiber in melamine resin. Its content is preferably 1 to 30%.
請求項（３）の消弧体は、メラミン樹脂にエポキシ樹脂
を含有したものである。その含有量は１〜５０重量％が
好ましい。The arc extinguishing body according to claim (3) contains an epoxy resin in a melamine resin. Its content is preferably 1 to 50% by weight.
請求項（４）の消弧体は、ε−カプロラクタム、水酸化
アルミニウム、ガラス繊維およびエポキシ樹脂のうちの
少なくとも２種類をメラミン樹脂に含有したものである
。The arc extinguisher according to claim (4) contains at least two of ε-caprolactam, aluminum hydroxide, glass fiber, and epoxy resin in melamine resin.
請求項（５）の回路しゃ断器は、請求項（１）ないし請
求項（４）の消弧体を有するものである。The circuit breaker according to claim (5) has the arc extinguisher according to claims (1) to (4).
なお、前記において、添加量の重量％はあくまで例とし
て挙げたものであって、この発明を制限するものではな
い。In addition, in the above, the weight % of the addition amount is mentioned as an example to the last, and does not limit this invention.
請求項（１）の消弧体によれば、メラミン樹脂にεカプ
ロラクタムを含有しているが、このε−カプロラクタム
は、
の構造式であられされ、従来可塑剤として樹脂の成形性
を良くする目的で用いられていたが、メラミン樹脂より
も揮発しやすいという性質に着眼した。すわなち、この
ε−カプロラクタムをメラミン樹脂に含有させた場合、
熱分解ガスが従来より多量に発生するため、とくにその
成分中のＨ２によってアーク冷却効果が促進され、アー
ク電圧が上昇し限流効果が増すので消弧性能を向上でき
、る。According to the arc-extinguishing body of claim (1), the melamine resin contains ε-caprolactam, and this ε-caprolactam has the structural formula of However, we focused on its property that it evaporates more easily than melamine resin. In other words, when this ε-caprolactam is contained in melamine resin,
Since pyrolysis gas is generated in a larger amount than before, the arc cooling effect is promoted by H2 in its components, and the arc voltage increases and the current limiting effect increases, so the arc extinguishing performance can be improved.
また水酸化アルミニウムをメラミン樹脂に添加した場合
、アークの熱によりつぎの反応が起こる。Furthermore, when aluminum hydroxide is added to melamine resin, the following reaction occurs due to the heat of the arc.
２ Ａ ｊｌ （ＯＨ）ｉ→Ａβｚ Ｏｚ ＋３Ｈｚ
Ｏ有機基（ＨＣ）＋Ｈ２０→ＣＯ＋ （ＨＣ）すなわち
、アークの高熱の作用で高分子である成形材料の分子鎖
が切れて有機基が生じ、また水酸化アルミニウムからは
Ｈ２Ｏが発生する。そして、有機基とＨ２Ｏが反応し一
酸化炭素や揮発性の炭化水素を生成する。このため、遊
離カーボンが発生しにくくなり、カーボンの発生を防止
することができる。さらに、無機質である水酸化アルミ
ニウムを添加することで、有機物質であるメラミン樹脂
のアークの熱分解を抑えることができるので、電流しゃ
断時の熱分解ガスによる圧力の上昇も防ぐことができる
。なお、ε−カプロラクタムの添加量を１５重量％以下
にしたのは絶縁耐圧性能が悪くなるからであり、水酸化
アルミニウムを３０重量％以下にしたのは成形性が悪く
なるからである。2 A jl (OH)i→Aβz Oz +3Hz
O organic group (HC) + H20→CO+ (HC) That is, the action of the high heat of the arc breaks the molecular chains of the polymeric molding material to generate organic groups, and H2O is generated from aluminum hydroxide. Then, the organic group and H2O react to generate carbon monoxide and volatile hydrocarbons. Therefore, free carbon is less likely to be generated, and the generation of carbon can be prevented. Furthermore, by adding aluminum hydroxide, which is an inorganic substance, it is possible to suppress the thermal decomposition of the arc of melamine resin, which is an organic substance, and therefore it is possible to prevent a pressure increase due to thermal decomposition gas when the current is cut off. The reason why the amount of ε-caprolactam added is 15% by weight or less is because the dielectric strength performance deteriorates, and the reason why the amount of aluminum hydroxide added is 30% by weight or less is because the moldability is deteriorated.
請求項（２）の消弧体によれば、メラミン樹脂にガラス
繊維を含有したため、アークによる消弧体の消耗を低減
できる。According to the arc extinguishing body of claim (2), since the melamine resin contains glass fiber, wear of the arc extinguishing body due to arc can be reduced.
請求項（３）の消弧体によれば、メラミン樹脂にエポキ
シ樹脂を含有したため、メラミン樹に靭性をもたせるこ
とができるので消弧体の耐衝撃強度の向上が達成できる
。According to the arc extinguishing body of claim (3), since the epoxy resin is contained in the melamine resin, the melamine tree can be imparted with toughness, so that the impact strength of the arc extinguishing body can be improved.
請求項（４）の消弧体によれば、ε−カプロラクタム、
水酸化アルミニウム、ガラス繊維およびエポキシ樹脂の
うちの少なくとも２種類をメラミン樹脂に含有すること
により、請求項（１）ないし請求項（３）の作用効果を
得る。According to the arc-quenching body of claim (4), ε-caprolactam,
By containing at least two of aluminum hydroxide, glass fiber, and epoxy resin in the melamine resin, the effects of claims (1) to (3) can be obtained.
請求項（５）の回路しゃ断器によれば、請求項（１）な
いし請求項（４）の消弧体を有するため、前記請求項（
１）ないし請求項（４）と同様な作用効果がある。According to the circuit breaker of claim (5), since it has the arc extinguishing body of claims (1) to (4),
There are effects similar to those of 1) to (4).
この発明の一実施例を第１図および第２図に基づいて説
明する。すなわち、この回路しゃ断器の消弧体１は逆Ｕ
字形に成形され、逆Ｕ字形の磁性体２の外面に嵌合され
、これらが電路部３に被さるように設置されている。An embodiment of the present invention will be described based on FIGS. 1 and 2. That is, the arc extinguisher 1 of this circuit breaker is an inverted U.
It is formed into a letter shape and fitted onto the outer surface of the inverted U-shaped magnetic body 2, and is installed so as to cover the electric circuit section 3.
電路部３は、先端部に可動接点４を有する可動接触子５
と、中央部に固定接触子６を有し両側部にアーク駆動コ
イル７を有する固定電路８とを有し、固定電路８の端部
に端子９が設けられ、固定接触子６のアーク駆動コイル
７の間に固定接点１０を設けている。アーク駆動コイル
７は固定接点１０の両側に分かれるように切欠１１によ
り形成された固定電路８の一部を各々逆Ｕ字形に曲げる
ことにより構成されている。消弧体１は略コ字形になっ
ており、アーク駆動コイル７の内側に固定接点１０側を
全て被覆するように構成されている。可動接触子５は、
回路しゃ断器の機構部（図示せず）に連結されている。The electric circuit section 3 includes a movable contact 5 having a movable contact 4 at its tip.
and a fixed electric line 8 having a fixed contact 6 in the center and arc drive coils 7 on both sides, a terminal 9 is provided at the end of the fixed electric line 8, and the arc drive coil of the fixed contact 6 A fixed contact 10 is provided between the terminals 7 and 7. The arc drive coil 7 is constructed by bending a portion of a fixed electric circuit 8 formed by a notch 11 into an inverted U shape so as to separate on both sides of a fixed contact 10. The arc extinguisher 1 has a substantially U-shape and is configured to completely cover the inside of the arc drive coil 7 on the fixed contact 10 side. The movable contact 5 is
It is connected to a mechanical part (not shown) of the circuit breaker.
短絡事故時に可動接触子５が閉極し、可動接点４と固定
接点１０との間にアークが発生した場合、アークはアー
ク駆動コイル７を流れる電流により発生する磁場の中で
磁気駆動力を受けて引き伸ばされ、アーク電圧が上昇す
る。そして、可動接点４を囲むように配置しである消弧
体１に引き伸ばされたアークが接近し、アークの熱によ
って消弧体１が加熱されると相当量の熱分解ガスが発生
し、この熱分解ガスによってアークは急冷され消弧に至
る。When the movable contact 5 is closed during a short circuit accident and an arc is generated between the movable contact 4 and the fixed contact 10, the arc receives a magnetic driving force in the magnetic field generated by the current flowing through the arc drive coil 7. The arc is stretched and the arc voltage increases. When the elongated arc approaches the arc extinguisher 1 arranged to surround the movable contact 4 and the arc extinguisher 1 is heated by the heat of the arc, a considerable amount of pyrolysis gas is generated. The arc is rapidly cooled by the pyrolysis gas and extinguished.
メラミン樹脂にε−カプロラクタムを添加した数種類の
成形材料を用いて電流しゃ断試験を行ったところ、メラ
ミン樹脂へのε−カプロラクタムの添加量とアーク消弧
性能とに関係があることが分かった。その結果を次表に
示す。When current interruption tests were conducted using several types of molding materials in which ε-caprolactam was added to melamine resin, it was found that there is a relationship between the amount of ε-caprolactam added to the melamine resin and the arc extinguishing performance. The results are shown in the table below.
（以下余白）
電流しゃ断試験はこの実施例の装置で２６５ＫＶ／２２
ＫＡの単極しゃ断試験を行い、異なる添加量（重量％）
の実施例Ａ１〜Ａ４について、比較例とともに各々の場
合の通過エネルギＥ（ｘ１０５Ａ２ｓｅｃ）と電流ピー
ク値１ （ｋＡ）を測定した。(Left below) The current cutoff test was conducted at 265KV/22 using the device of this example.
A monopolar cutoff test of KA was carried out, and different addition amounts (wt%)
For Examples A1 to A4, the passing energy E (x105 A2 sec) and current peak value 1 (kA) were measured for each case as well as the comparative example.
ここで、通過エネルギ、電流ピーク値はアーク消弧性能
すなわち回路しゃ断器の電流しゃ断性能を示すもので、
これらの数値が小さい程アーク消弧性能が優れている。Here, the passing energy and current peak value indicate the arc extinguishing performance, that is, the current breaking performance of the circuit breaker.
The smaller these values are, the better the arc extinguishing performance is.
この表から明らかなように、メラミン樹脂へのε−カプ
ロラクタムの添加量が多くなるにつれて、通過エネルギ
Ｅおよび電流ピーク値Ｉともに減少し、アーク消弧性能
が改良されており、メラミン樹脂にε−カプロラクタム
を添加することによって、アーク消弧性能を向上できる
ことがわかる。As is clear from this table, as the amount of ε-caprolactam added to the melamine resin increases, both the passing energy E and the current peak value I decrease, and the arc extinguishing performance is improved. It can be seen that the arc extinguishing performance can be improved by adding caprolactam.
また、このような消弧体１を用いることにより、消弧装
置の構造が簡単になり消弧性能を確保でき、また回路し
ゃ断器の内部構造が簡単になり、低コスト化することが
できる。Further, by using such an arc extinguishing body 1, the structure of the arc extinguishing device can be simplified and arc extinguishing performance can be ensured, and the internal structure of the circuit breaker can be simplified and costs can be reduced.
つぎに、消弧体１は、アーク発生時にアークの熱の影響
により、消弧体１が蒸発、消耗し、かつ発生ガスの圧力
によって消弧体１は衝撃力を受ける。そこで、この消弧
体１の消耗を少なくし耐衝撃性を向」ニさせるための手
段として、メラミン樹脂にガラス繊維やエポキシ樹脂を
加えることが考えられる。無機物であるガラス繊維を含
有させることにより、アークの熱による消弧体１の消耗
が少なくなる。実際、ガラス繊維を５重量％含有した消
弧体１を用いると、回路しゃ断器での電気的開閉試験で
の消耗量は少なくなることが判った。Next, when an arc occurs, the arc extinguishing body 1 evaporates and is consumed due to the influence of the heat of the arc, and the arc extinguishing body 1 is subjected to an impact force due to the pressure of the generated gas. Therefore, as a means to reduce the wear and tear of the arc extinguishing body 1 and improve its impact resistance, it is conceivable to add glass fiber or epoxy resin to the melamine resin. By containing glass fiber, which is an inorganic substance, the arc extinguisher 1 is less consumed by the heat of the arc. In fact, it has been found that when the arc extinguisher 1 containing 5% by weight of glass fiber is used, the amount of wear in an electrical switching test in a circuit breaker is reduced.
また、エポキシ樹脂を含有させることにより、メラミン
樹脂に靭性を持たせることができるため、回路しゃ断器
の短絡時の圧力による消弧体１の割れやクランク等の破
損などを防止することが可能となる。In addition, by including epoxy resin, melamine resin can be given toughness, so it is possible to prevent cracking of the arc extinguisher 1 and damage to the crank etc. due to the pressure when a short circuit occurs in a circuit breaker. Become.
さらに、ε−カプロラクタム、水酸化アルミニウム、ガ
ラス繊維およびエポキシ樹脂をメラミン樹脂に含有させ
ることによって消弧体１の性能および信転性が向上する
ことから、これらの添加物を、たとえば２種類、併用し
てメラミン樹脂に含有させた消弧体１およびその消弧体
を用いた回路しゃ断器も前記と同様な作用効果を持つ。Furthermore, since the performance and reliability of the arc extinguisher 1 are improved by incorporating ε-caprolactam, aluminum hydroxide, glass fiber, and epoxy resin into the melamine resin, for example, two types of these additives may be used in combination. The arc-extinguishing body 1 contained in the melamine resin and the circuit breaker using the arc-extinguishing body also have the same effects as described above.
なお、前記実施例は磁性体の内面にこの発明の材料で形
成した消弧体を設けたが、回路しゃ断器の消弧室内に消
弧体を単独で配設してもよく、またこの発明の消弧体は
アークに曝される部位に配設されるものであれば形状を
問わない。In the above embodiment, an arc extinguishing body made of the material of the present invention was provided on the inner surface of the magnetic body, but the arc extinguishing body may be provided alone in the arc extinguishing chamber of the circuit breaker. The shape of the arc-extinguishing body does not matter as long as it is placed in a region exposed to the arc.
請求項（１）の消弧体は、メラミン樹脂にε−カプロラ
クタムおよび水酸化アルミニウムを含有したため、熱分
解ガスの発生を促進することができるとともに遊離カー
ボンの発生を防止することができるという効果がある。The arc extinguishing body of claim (1) contains ε-caprolactam and aluminum hydroxide in the melamine resin, so it has the effect of promoting the generation of pyrolysis gas and preventing the generation of free carbon. be.
請求項（２）の消弧体は、メラミン樹脂にガラス繊維を
含有したため、アークによる消弧体の消耗を低減できる
という効果がある。The arc-extinguishing body of claim (2) contains glass fiber in the melamine resin, so it has the effect of reducing wear of the arc-extinguishing body due to arcing.
請求項（３）の消弧体は、メラミン樹脂にエポキシ樹脂
を含有したため、消弧体の耐衝撃強度の向上を達成でき
るという効果がある。The arc-extinguishing body of claim (3) contains an epoxy resin in the melamine resin, and therefore has the effect of improving the impact strength of the arc-extinguishing body.
請求項（４）の消弧体は、ε−カプロラクタム、水酸化
アルミニウム、ガラス繊維およびエポキシ樹脂のうちの
少なくとも２種類をメラミン樹脂に含有したため、請求
項（１）ないし請求項（３）の作用効果を得る。The arc-extinguishing body of claim (4) contains at least two of ε-caprolactam, aluminum hydroxide, glass fiber, and epoxy resin in the melamine resin, and therefore has the effects of claims (1) to (3). Get the effect.
請求項（５）の回路しゃ断器は、請求項（１）ないし請
求項（４）の消弧体を有するため、これらと同様な作用
効果がある。Since the circuit breaker according to claim (5) has the arc extinguishing body according to claims (1) to (4), it has the same effects as these.
第１図はこの発明の一実施例の斜視図、第２図はその縮
小断面図、第３図は従来例の断面図、第４図は他の従来
例の斜視図、第５図はその断面図である。Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a reduced sectional view thereof, Fig. 3 is a sectional view of a conventional example, Fig. 4 is a perspective view of another conventional example, and Fig. 5 is its reduced sectional view. FIG.
Claims (5)
含有したメラミン樹脂により形成されたことを特徴とす
る消弧体。(1) An arc-extinguishing body characterized by being formed from a melamine resin containing ε-caprolactam and aluminum hydroxide.
れたことを特徴とする消弧体。(2) An arc-extinguishing body characterized by being formed from a melamine resin containing glass fiber.
されたことを特徴とする消弧体。(3) An arc-extinguishing body characterized by being formed from a melamine resin containing an epoxy resin.
ス繊維およびエポキシ樹脂のうちの少なくとも２種類を
含有したメラミン樹脂より形成されたことを特徴とする
消弧体。(4) An arc-extinguishing body characterized by being formed from a melamine resin containing at least two of ε-caprolactam, aluminum hydroxide, glass fiber, and epoxy resin.
は請求項（４）記載の消弧体を有する回路しゃ断器。(5) A circuit breaker having the arc-extinguishing body according to claim (1), claim (2), claim (3), or claim (4).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16228188 | 1988-06-27 | ||
| JP63-162281 | 1988-11-25 | ||
| JP63-298802 | 1988-11-25 | ||
| JP29880688 | 1988-11-25 | ||
| JP63-298806 | 1988-11-25 | ||
| JP29880288 | 1988-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02256110A true JPH02256110A (en) | 1990-10-16 |
| JPH06101263B2 JPH06101263B2 (en) | 1994-12-12 |
Family
ID=27321983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16772289A Expired - Lifetime JPH06101263B2 (en) | 1988-06-27 | 1989-06-27 | Arc extinguishers and circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06101263B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0671754A2 (en) * | 1994-03-10 | 1995-09-13 | Mitsubishi Denki Kabushiki Kaisha | Switch and arc extinguishing material for use therein |
| JP2009277566A (en) * | 2008-05-16 | 2009-11-26 | Fuji Electric Fa Components & Systems Co Ltd | Resin processed article for arc extinguishment, and circuit breaker using the same |
| US8089023B2 (en) | 2008-02-08 | 2012-01-03 | Fuji Electric Fa Components & Systems Co., Ltd. | Arc-extinguishing processed resin article and circuit breaker that uses same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4982977A (en) * | 1972-12-18 | 1974-08-09 | ||
| JPS5024763A (en) * | 1972-12-11 | 1975-03-17 | ||
| JPS5634961A (en) * | 1979-08-27 | 1981-04-07 | Mitsubishi Electric Corp | Magneto ignition device |
| JPS5651441A (en) * | 1979-10-05 | 1981-05-09 | Nissan Chem Ind Ltd | O- n-allyl-2,6-dichloroanilino phenylacetic acid derivative and its preparation |
| JPS58172808A (en) * | 1982-04-05 | 1983-10-11 | 松下電工株式会社 | Electric laminated plate |
-
1989
- 1989-06-27 JP JP16772289A patent/JPH06101263B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5024763A (en) * | 1972-12-11 | 1975-03-17 | ||
| JPS4982977A (en) * | 1972-12-18 | 1974-08-09 | ||
| JPS5634961A (en) * | 1979-08-27 | 1981-04-07 | Mitsubishi Electric Corp | Magneto ignition device |
| JPS5651441A (en) * | 1979-10-05 | 1981-05-09 | Nissan Chem Ind Ltd | O- n-allyl-2,6-dichloroanilino phenylacetic acid derivative and its preparation |
| JPS58172808A (en) * | 1982-04-05 | 1983-10-11 | 松下電工株式会社 | Electric laminated plate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0671754A2 (en) * | 1994-03-10 | 1995-09-13 | Mitsubishi Denki Kabushiki Kaisha | Switch and arc extinguishing material for use therein |
| EP0671754A3 (en) * | 1994-03-10 | 1995-11-22 | Mitsubishi Electric Corp | Switch and arc extinguishing material for use therein. |
| EP0694940A1 (en) | 1994-03-10 | 1996-01-31 | Mitsubishi Denki Kabushiki Kaisha | Switch and arc extinguishing material for use therein |
| US8089023B2 (en) | 2008-02-08 | 2012-01-03 | Fuji Electric Fa Components & Systems Co., Ltd. | Arc-extinguishing processed resin article and circuit breaker that uses same |
| JP2009277566A (en) * | 2008-05-16 | 2009-11-26 | Fuji Electric Fa Components & Systems Co Ltd | Resin processed article for arc extinguishment, and circuit breaker using the same |
| JP4529034B2 (en) * | 2008-05-16 | 2010-08-25 | 富士電機機器制御株式会社 | Arc extinguishing resin processed product and circuit breaker using the same |
| US8115134B2 (en) | 2008-05-16 | 2012-02-14 | Fuji Electric Fa Components & Systems Co., Ltd. | Arc extinguishing resin processed article and circuit breaker using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06101263B2 (en) | 1994-12-12 |
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