JPS63257138A - Arc distinguisher for circuit breaker - Google Patents
Arc distinguisher for circuit breakerInfo
- Publication number
- JPS63257138A JPS63257138A JP9120287A JP9120287A JPS63257138A JP S63257138 A JPS63257138 A JP S63257138A JP 9120287 A JP9120287 A JP 9120287A JP 9120287 A JP9120287 A JP 9120287A JP S63257138 A JPS63257138 A JP S63257138A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- insulating plate
- circuit breaker
- arc extinguishing
- extinguishing device
- 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.)
- Pending
Links
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
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】
〔産業上の利用分野〕
この発明は、回路しゃ断器の消弧装置、特にその消弧能
力の向上に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an arc extinguishing device for a circuit breaker, and particularly to an improvement in its arc extinguishing ability.
第９図は例えば実開昭５２−７１０５１号に開示された
形式の消弧装置を備えた従来の回路しゃ断器の部分断面
側面図、第１０図は第９図の消弧装置の平面図であり、
図において、（１）はしゃ断器ケース、（２）は開閉機
構（図示せず）に連結された可動接触子、（２０１）は
その接点、（３）は固定接触子、（３０１）はその接点
、（４）は電流しゃ断時に前記接点（２０１）、（３０
１）間に生じるアーク（Ａ）を消弧する消弧装置、（５
）は外部導体、（６）は外部導体（５）を固定接触子（
３）に接続するための外部接続端子であって、（６０１
）は外部接続端子（６）を固定接触子（３）に取付ける
ねじ、−（６０２）は外部導体（５）を外部接続端子（
６）に締付は保持するねじである。（力は消弧装置（４
）と外部接続端子（６）との間に配設された絶縁隔壁、
（８）は固定接触子（３）に設けられたアークランナで
ある。FIG. 9 is a partially sectional side view of a conventional circuit breaker equipped with an arc extinguishing device of the type disclosed in Utility Model Application No. 52-71051, and FIG. 10 is a plan view of the arc extinguishing device of FIG. 9. can be,
In the figure, (1) is a breaker case, (2) is a movable contact connected to an opening/closing mechanism (not shown), (201) is its contact, (3) is a fixed contact, and (301) is its The contacts (4) are the contacts (201) and (30) when the current is cut off.
1) Arc extinguishing device for extinguishing the arc (A) generated between
) is the outer conductor, (6) is the outer conductor (5) and the fixed contact (
3), which is an external connection terminal for connecting to (601
) is the screw for attaching the external connection terminal (6) to the fixed contact (3), - (602) is the screw for attaching the external conductor (5) to the external connection terminal (
6) Tighten is the screw that holds it. (The force is the arc extinguishing device (4
) and the external connection terminal (6),
(8) is an arc runner provided on the fixed contact (3).
消弧装置（４）は接触子（２）、 （３）側に開口した
ほぼＵ字形の複数枚の消弧板（４０１）を側部支持板（
４０２）によって上下方向に互いに間隔を置いて重積関
係に保持してなるものであり、（４０３）は各消弧板（
４０１）の両脚部である。（９）はマイカ、アスベスト
等の無機質材料からなる絶縁板であって、両脚部（４０
３）の内側に配設されている。The arc extinguishing device (4) has a plurality of approximately U-shaped arc extinguishing plates (401) that are open on the contactor (2) and (3) sides, and is attached to a side support plate (
402), they are held in a stacked relationship at intervals in the vertical direction, and (403) are the arc-extinguishing plates (
401). (9) is an insulating plate made of inorganic material such as mica or asbestos, and has both legs (40
3) is placed inside.
次に動作について説明する。接触子（２）、 （３）が
閉じてその接点（２０１）、（３０１）も閉じている状
態において過電流等の大電流が流れると開閉、＠構を介
して可動接触子（２）が固定接触子（３）から離反し、
接点（２０１）、（３０１）が開離して接点（２０１）
、（３０１）間にアーク（Ａ）が生じる。その時アーク
（Ａ）は、その７−り電流により消弧板（４０１）を通
して形成される磁束とアーク電流との電磁作用により消
弧板（４０１）の奥の方へ駆動されて引延ばされ、され
る。絶縁板（９）はかかる消弧に際し、消弧板（４０１
）がアーク熱によって溶融飛散するのを防止すると共に
前記実開昭５２−７１０５１号公報には積極的には記載
されていないが、アークが接点（２０１）とか可動接触
子（２）の先端あるいは側面から消弧板（４０１）の脚
部（４０３）に飛ぶのを防止し、アークが脚部（４０３
）に飛んでその位置に滞留し、しゃ断不能になるのを防
止する機能をも有する。Next, the operation will be explained. When the contacts (2) and (3) are closed and the contacts (201) and (301) are also closed, if a large current such as an overcurrent flows, the movable contact (2) will open or close via the @ structure. separated from the fixed contact (3),
Contacts (201) and (301) open and contact (201)
, (301), an arc (A) occurs. At that time, the arc (A) is driven toward the back of the arc extinguishing plate (401) and elongated by the electromagnetic action of the arc current and the magnetic flux formed through the arc extinguishing plate (401) by the current. , will be done. When extinguishing the arc, the insulating plate (9) acts as an arc extinguishing plate (401
) is prevented from melting and scattering due to arc heat, and although it is not explicitly stated in the above-mentioned Japanese Utility Model Application Publication No. 52-71051, the arc prevents the contact (201), the tip of the movable contact (2), or It prevents the arc from flying from the side to the legs (403) of the arc extinguishing plate (401), and
) and stay in that position, which prevents it from becoming impossible to shut off.
従来の消弧装置は以上のように構成され、消弧板（４０
１）の両脚部（４０３）の内側に絶縁板（９）を配設し
て消弧板（４０１）がアーク熱によって溶融するのを防
止すると共に７−クが消弧板（４０１）に飛ぶのを防止
しうるのではあるが、絶縁板（９）は無機質材料からな
っているため、しゃ断器はアーク熱によって絶縁板（９
）の表面が溶融状態になるため電流零点における接点間
の絶縁回復力が小さくなり、しゃ断不能を起こすことが
あり、量産性がなく、製造コストが高いし、硬度が高い
ためもろく、振動衝撃で破損しやすく、更にアーク発生
時に絶縁板（９）の表面にひび割れが生じるなどヒート
ショックに弱い問題点があった。The conventional arc extinguishing device is constructed as described above, and includes an arc extinguishing plate (40
An insulating plate (9) is arranged inside both legs (403) of 1) to prevent the arc extinguishing plate (401) from melting due to arc heat, and 7-k flies to the arc extinguishing plate (401). However, since the insulating plate (9) is made of inorganic material, the breaker can be damaged by the arc heat.
) becomes a molten state, the dielectric recovery force between the contacts at the zero current point decreases, which may result in failure to shut off, making it unsuitable for mass production, high manufacturing costs, and brittle due to its high hardness, making it susceptible to vibration and shock. It is easy to break, and it also has the problem of being susceptible to heat shock, such as cracks appearing on the surface of the insulating plate (9) when an arc occurs.
この発明は従来のもののかかる問題点を解決するために
なされたもので、しゃ断不能を起こすことがなく、安価
に量産することができ、振動衝撃を受けても破損しに＜
＜、シかもアークによるヒートショックにも強い絶縁板
を備えた回路しゃ断器の消弧装置を提供することを目的
とするものである。This invention was made to solve the problems of the conventional ones, and it does not cause failure to shut off, can be mass-produced at low cost, and does not break even when subjected to vibration shock.
The object of the present invention is to provide an arc extinguishing device for a circuit breaker equipped with an insulating plate that is resistant to heat shock caused by arcs.
この発明に係る消弧装置は、消弧板の両脚部の内側に樹
脂材料からなる消弧板を配設したものである。The arc extinguishing device according to the present invention has an arc extinguishing plate made of a resin material disposed inside both legs of the arc extinguishing plate.
この発明においては、絶縁板は７−りが消弧板に飛ぶの
を防止乃至抑制する。In this invention, the insulating plate prevents or suppresses the wire from flying to the arc-extinguishing plate.
以下、この発明の一実施例を第１図乃至第４図について
説明する。第１図はこの発明の一実施例による消弧装置
の一部破断斜視図、第２図は第１図の平面図、第３図は
消弧板の斜視図、第４図は絶縁板の斜視図であり、前記
従来のものと同一部分には同一符号を付してその説明は
省略する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Fig. 1 is a partially cutaway perspective view of an arc extinguishing device according to an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a perspective view of an arc extinguishing plate, and Fig. 4 is a perspective view of an insulating plate. It is a perspective view, and the same parts as the conventional one are given the same reference numerals, and the explanation thereof will be omitted.
図において、（４０１Ａ）は従来のものの（４０１）に
対応する消弧板、（９Ａ）は従来のものの（９）に対応
する絶縁板であるが、この発明においてはこの絶縁板（
９Ａ）は樹脂材料で形成されている。各消弧板（４０１
Ａ）の両脚部（４０３）には内方へ突出した突起（４０
４）が設けられており、絶縁板（９Ａ）には突起（４０
４）の全てに対応して穴（９０１）が設けられている。In the figure, (401A) is an arc extinguishing plate corresponding to (401) of the conventional one, and (9A) is an insulating plate corresponding to (9) of the conventional one, but in this invention, this insulating plate (
9A) is made of resin material. Each arc extinguishing plate (401
Both legs (403) of A) have protrusions (40
4) is provided, and the insulating plate (9A) is provided with a protrusion (40
Holes (901) are provided corresponding to all of 4).
そして絶縁板（９Ａ）の穴（９０１）を突起（４０４）
に嵌合させた後突起（４０４）をかしめることにより絶
縁板（９Ａ）を両脚部（４０３）の内側に固定保持して
いる。（４０５）は消弧板（４０１Ａ）の奥の部分でそ
の内側のエツジ（４０６）はアーク（Ａ）と接触してこ
れを冷却するために露出したままにしておく。なお、（
４０７）は各消弧板（４０１Ａ）の各脚部″（４０３）
に外方へ向けて突出して形成された突起で、側部支持板
（４０２）に形成した穴（４０８）に突起（４０７）を
嵌合させてかしめることにより、側部支持板（４０２）
で消弧板（４０１Ａ）を支持するものである。Then, insert the hole (901) in the insulating plate (9A) into the protrusion (404).
The insulating plate (9A) is fixedly held inside the legs (403) by caulking the projections (404) that are fitted into the insulating plates (9A). (405) is the deep part of the arc extinguishing plate (401A), and its inner edge (406) is left exposed in order to contact the arc (A) and cool it. In addition,(
407) is each leg'' (403) of each arc extinguishing plate (401A)
By fitting the protrusion (407) into the hole (408) formed in the side support plate (402) and caulking it, the side support plate (402) is formed to protrude outward.
This supports the arc extinguishing plate (401A).
このように絶縁板（９Ａ）を消弧板（４０１Ａ）の両脚
部（４０３）の内側に配設することにより、アークい）
が消弧板（４０１Ａ）に飛ぶのが防止乃至抑制されるが
、絶縁板（９Ａ）は樹脂材料で形成されているため表面
が溶融することなく、しゃ断器の絶縁板（９Ａ）の表面
抵抗が高く、しゃ断性能が良いし、成形性が良くて安価
に量産することができ、ヒートショックに強い。更に、
絶縁板（９Ａ）を樹脂材料で形成することにより更に次
のような効果が得られる。By arranging the insulating plate (9A) inside both legs (403) of the arc extinguishing plate (401A) in this way, the arc
However, since the insulating plate (9A) is made of resin material, the surface resistance of the insulating plate (9A) of the breaker is prevented or suppressed from being blown to the arc extinguishing plate (401A). It has high resistance, good breaking performance, good formability, can be mass-produced at low cost, and is resistant to heat shock. Furthermore,
By forming the insulating plate (9A) from a resin material, the following effects can be obtained.
即ち、絶縁板（９Ａ）の樹脂材料は温度上昇すると分解
ガスを発生するが、分解ガス発生の際によってアークが
冷却されしかも分解ガスの発生によって絶縁板（９Ａ）
の表面の圧力が上昇してアークを消弧板の奥へ駆動する
ため、しゃ断能力が向上するのである。また、分解ガス
による圧力上昇は接触子の開極速度を上昇させ、この点
でもしゃ断能力が向上する。これは分解ガスの発生がな
い無機質材料にない独特な効果である。なお、振動を受
けて絶縁板（９Ａ）と消弧板（４０１Ａ）とがこすれ、
絶縁物の粉が生じてこれが接点（２０１）、（３０１）
間に入ると閉成時における接点（２０１）、（３０１）
間の導通が不良になるが、この実施例におけるように絶
縁板（９Ａ）を全ての消弧板（４０１Ａ）で保持するよ
うにすると、振動を受けても絶縁板（９Ａ）と消弧板（
４０１Ａ）とはこすれにくく、接点（２０１）、（３０
１）間が導通不良になることはない。That is, the resin material of the insulating plate (9A) generates decomposed gas when the temperature rises, but the arc is cooled when the decomposed gas is generated, and the insulating plate (9A)
The pressure on the surface of the arc increases and drives the arc deeper into the arc-extinguishing plate, improving the breaking ability. Further, the pressure increase due to the decomposition gas increases the opening speed of the contact, and the breaking ability is improved in this respect as well. This is a unique effect not found in inorganic materials that do not generate decomposition gas. In addition, the insulation plate (9A) and arc extinguishing plate (401A) rub against each other due to vibration,
Insulating powder is generated and this becomes the contact point (201), (301)
In between, the contacts (201) and (301) at the time of closing
However, if the insulating plate (9A) is held by all the arc-extinguishing plates (401A) as in this example, even when subjected to vibration, the insulating plate (9A) and the arc-extinguishing plate (
401A), and the contact points (201) and (30
1) There will be no conduction failure between the two.
この発明の他の実施例が第５図に示されている。この実
施例が第１図乃至第４図の実施例との消弧板（４０１Ａ
）のみとし、中間の消弧板（４０１）には突起を設けて
いない点である。Another embodiment of the invention is shown in FIG. This embodiment is similar to the arc extinguishing plate (401A) of the embodiments shown in FIGS. 1 to 4.
), and the intermediate arc-extinguishing plate (401) is not provided with any protrusion.
かくして絶縁板（９Ａ）は、この突起（４０４）に対応
した部分にだけ穴（９０１）を有し、この穴（９０１）
を一番上と一番下の消弧板（４０１Ａ）の突起（４０４
）と嵌合させ、突起（４０４）をかしめる。この実施例
は絶縁板（９Ａ）の中央部では突起（４０４）がないの
で第１図乃至第４図の実施例より更にアーク（Ａ）が中
央部の消弧板（４０１）に飛びにくいという点で優れて
いる。Thus, the insulating plate (9A) has a hole (901) only in a portion corresponding to this protrusion (404), and this hole (901)
the protrusions (404) of the top and bottom arc extinguishing plates (401A).
) and caulk the protrusion (404). In this embodiment, since there is no protrusion (404) at the center of the insulating plate (9A), the arc (A) is more difficult to fly to the arc extinguishing plate (401) in the center than the embodiments shown in FIGS. 1 to 4. Excellent in that respect.
この発明の別の実施例が第６図および第７図に示されて
いる。第６図は消弧装置の斜視図、第７図は消弧板の斜
視図である。図をこおいて、（４０１Ｂ）は消弧板であ
り、各消弧板（４０１Ｂ）の両脚部（４０３）の先端に
は内方に間隔を置いて保持部（４０９）が設けられ、ま
た各消弧板（４０１Ｂ）の奥（４０６）にも両脚部（４
０３）から内方に間隔を置いて保持部（４１０）が設け
られている。そして絶縁板（９Ａ）は両脚部（４０３）
と保持部（４０９）、（４１０）との間に挿入され、保
持部（４０９）、（４１０）をかしめることにより消弧
板（４０１Ｂ）に固定される。この実施例は、絶縁板（
９Ａ）に穴′（９０１）を形成しなくても良い点で先の
実施例より優れている。なお、この実施例では全ての消
弧板（４０１Ｂ）で絶縁板（９Ａ）を保持しているが、
第５図の実施例と同様一番上と一番下の消弧板によって
保持するようにしても良いＯ
この発明の更に他の実施例が第８図に平面図で示されて
いる。図において、（４０１Ｇ）は消弧板であり、この
消弧板（４０１Ｇ）は両脚部（４０３）の内側エツジが
若干傾斜している点が先の実施例における消弧板（４０
１）。Another embodiment of the invention is shown in FIGS. 6 and 7. FIG. 6 is a perspective view of the arc extinguishing device, and FIG. 7 is a perspective view of the arc extinguishing plate. In the figure, (401B) is an arc-extinguishing plate, and holding parts (409) are provided at the tips of both legs (403) of each arc-extinguishing plate (401B) at intervals inwardly. Both legs (4
A holding portion (410) is provided spaced inwardly from the holding portion (410). And the insulating plate (9A) has both legs (403)
and the holding parts (409) and (410), and is fixed to the arc extinguishing plate (401B) by caulking the holding parts (409) and (410). This example uses an insulating plate (
This embodiment is superior to the previous embodiment in that there is no need to form a hole' (901) in 9A). In addition, in this example, all the arc extinguishing plates (401B) hold the insulating plate (9A),
Similar to the embodiment of FIG. 5, it may be held by the top and bottom arc-extinguishing plates. Yet another embodiment of the invention is shown in plan view in FIG. In the figure, (401G) is an arc-extinguishing plate, and this arc-extinguishing plate (401G) differs from the arc-extinguishing plate (401G) in the previous embodiment in that the inner edges of both legs (403) are slightly inclined.
1).
（４０１Ａ）、（４０１Ｂ）とは異なるがほぼＵ字形の
ものである点は同じであり、かかる形状の消弧板（４０
１Ｇ）は従来公知である。この実施例では絶縁板（９Ａ
）は各消弧板（４０１Ｇ）の両脚部（４０３）の内側に
適当な接着剤により接着されている。従って、消弧板（
４０１Ｇ）の両脚部（４０３）は絶縁板（９Ａ）によっ
てほぼ完全にアーク（Ａ）から絶縁され、両脚部（４０
３）へアーク（Ａ）が飛ぶことは実質的昏こ完全に防止
される。消弧板が第１０図に示した形状のものであって
も、この実施例と同様その両脚部（４０３）に接着によ
り絶縁板（９Ａ）を固定しうろことは言うにおよばない
。Although it is different from (401A) and (401B), it is the same in that it is almost U-shaped, and the arc-extinguishing plate (40
1G) is conventionally known. In this example, an insulating plate (9A
) is adhered to the inside of both legs (403) of each arc-extinguishing plate (401G) with a suitable adhesive. Therefore, the arc-extinguishing plate (
Both legs (403) of the leg (401G) are almost completely insulated from the arc (A) by the insulating plate (9A).
3) Flying of the arc (A) to the target is substantially completely prevented. Even if the arc extinguishing plate has the shape shown in FIG. 10, it goes without saying that the insulating plate (9A) is fixed to both legs (403) of the arc extinguishing plate by adhesive as in this embodiment.
次ｔこ、絶縁板（９Ａ）の材料について述べる。Next, the material of the insulating plate (9A) will be described.
絶縁板（９Ａ）は上述したように樹脂材料から形成する
のであるが、樹脂材料は熱可塑性樹脂と熱硬化性樹脂と
に大別され、第１図乃至第４図の実施例について述べた
樹脂材料の利点を熱可塑性樹脂と熱硬化性樹脂との間で
比較すると、一般に成形性、耐振動、衝撃性、耐ヒート
シヨツク性の点では熱硬化性樹脂より熱可塑性樹脂の方
が優れており、表面抵抗の点では熱可塑性樹脂より熱硬
化性樹脂の方が優れている。分解ガスの発生量は両者大
差ない。その他、軽量であり、振動、衝宗で消弧板との
間に摩擦が生じても粉が発生しに＜＜、また耐湿性が良
いという点で熱硬化性樹脂より熱可塑性樹脂の方が優れ
、熱変形温度が高く、熱膨張力が小さい点では熱硬化性
樹脂の方が優れている。更に、具体的に述べると絶縁板
（９Ａ）を形成するのに適した熱可塑性樹脂としてはシ
リコーン樹脂およびポリエステル樹脂を挙げることがで
き、熱硬化性樹脂としてはシリコーン樹脂、ポリエステ
ル樹脂の他、エポキシ樹脂、フェノール樹脂を挙げるこ
とができる。シリコーン樹脂は先に述べた一般的な特性
を有する他、アークに触れて分解ガスを発生しても、絶
縁板（９Ａ）の表面に炭素を殆ど析出することがないの
で、しゃ断後の絶縁不良、絶縁劣化の心配がないという
利点を有し、この点で他の樹脂材料より優れている。The insulating plate (9A) is formed from a resin material as described above, and resin materials are broadly classified into thermoplastic resins and thermosetting resins, and the resins described in the embodiments of FIGS. 1 to 4 When comparing the material advantages between thermoplastic resins and thermosetting resins, thermoplastic resins are generally superior to thermosetting resins in terms of moldability, vibration resistance, impact resistance, and heat shock resistance. Thermosetting resins are superior to thermoplastic resins in terms of surface resistance. There is not much difference in the amount of cracked gas generated between the two. In addition, thermoplastic resin is better than thermosetting resin because it is lightweight, does not generate powder even if friction occurs between it and the arc extinguishing plate due to vibration or impact, and has better moisture resistance. Thermosetting resins are superior in that they have a high heat distortion temperature and a low thermal expansion force. More specifically, thermoplastic resins suitable for forming the insulating plate (9A) include silicone resins and polyester resins, and thermosetting resins include silicone resins, polyester resins, and epoxy resins. Examples include resins and phenolic resins. In addition to having the general characteristics mentioned above, silicone resin does not deposit much carbon on the surface of the insulating plate (9A) even if it comes into contact with an arc and generates decomposition gas, so it can cause insulation failure after the breaker is cut off. , has the advantage of not having to worry about insulation deterioration, and is superior to other resin materials in this respect.
また、ポリエステル樹脂、フェノール樹脂の場合には、
これにガラスファイバーを混入することによって機械的
強度を大きくすることができる。なお、絶縁板（９Ａ）
の構成としては、通常の樹脂成形体とファイバーシート
とが挙げられるが、同じ樹脂材料で形成してもファイバ
ーシートは通常の樹脂成形体に比較して分解ガス量が多
く、成形加工性も良く、プレス抜きも非常に容易にでき
る利点がある。In addition, in the case of polyester resin and phenolic resin,
Mechanical strength can be increased by mixing glass fiber. In addition, insulating plate (9A)
The structure includes a normal resin molded body and a fiber sheet, but even if they are made of the same resin material, the fiber sheet has a higher amount of decomposed gas than a normal resin molded body, and has better molding processability. It also has the advantage of being very easy to press out.
以上のようにこの発明によれば、しゃ断器の表面抵抗が
高く、安価に量産することができ、耐愉撃性、耐ヒート
シヨツク性に富み、かつアーク熱により分解ガスを発生
してしゃ断能力を向上させることのできる絶縁板を備え
た消弧装置が得られる効果が奏される。As described above, according to the present invention, the breaker has a high surface resistance, can be mass-produced at low cost, is highly resistant to shock and heat shock, and has the ability to generate decomposition gas by arc heat. The effect of providing an arc extinguishing device equipped with an insulating plate that can improve the performance is achieved.
第１図はこの発明の一実施例による消弧装置の一部破断
斜視図、第２図は第１図の平面図、第３図はこの実施例
の消弧板の斜視図、第４図は絶縁板の斜視図、第５図は
この発明の他の実施例による消弧装置の一部破断斜視図
、第６図はこの発明の更に他の実施例による消弧装置の
一部破断斜視図、第７図は第６図の実施例における消弧
板の斜視図、第８図はこの発明の更に他の実施例による
消弧装置の平面図、第９図は従来の消弧装置を備えた回
路しゃ断器の部分断面側面図、第１０図は第９図に示さ
れた消弧装置の平面図である。
図において、（２）は可動接触子、（３）は固定接触子
、（４）は消弧装置、（４０１）、（４０１Ａ）。
（４０１Ｂ）、（４０１Ｃ）はそれぞれ消弧板、（４０
３）は消弧板の両脚部、（４０４）は突起、（４０９）
、（４１０）はそれぞれ保持部、（９Ａ）は絶縁板、（
９０１）は穴、（Ａ）はアークである。
なお、各図中同一符号は同一部または相当部を示す。
代理人 弁理士 大 岩 増 雄第１図
第２図 ４０８
第３図
第４図
第７図
手続補正書（自発）
１、事件の表示 特願昭６２−９１２０２号３、補
正をする者
代表者志岐守哉
４、代理人
５、補正の対象
明細書の発明の詳細な説明の欄
６、補正の内容
（１）明細書中筒７頁第１４行の「樹脂材料からなる消
弧板」を「樹脂材料からなる絶縁板」と訂°圧する。
以 上Fig. 1 is a partially cutaway perspective view of an arc extinguishing device according to an embodiment of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a perspective view of an arc extinguishing plate of this embodiment, and Fig. 4. is a perspective view of an insulating plate, FIG. 5 is a partially cutaway perspective view of an arc extinguisher according to another embodiment of the invention, and FIG. 6 is a partially cutaway perspective view of an arc extinguisher according to yet another embodiment of the invention. 7 is a perspective view of the arc extinguishing plate in the embodiment shown in FIG. 6, FIG. 8 is a plan view of an arc extinguishing device according to still another embodiment of the present invention, and FIG. FIG. 10 is a partially sectional side view of the circuit breaker provided therein, and FIG. 10 is a plan view of the arc extinguishing device shown in FIG. 9. In the figure, (2) is a movable contact, (3) is a fixed contact, (4) is an arc extinguisher, (401), (401A). (401B) and (401C) are arc extinguishing plates, (40
3) are both legs of the arc extinguishing plate, (404) is the protrusion, (409)
, (410) are holding parts, (9A) are insulating plates, (
901) is a hole, and (A) is an arc. Note that the same reference numerals in each figure indicate the same or equivalent parts. Agent Masuo Oiwa, Patent Attorney Figure 1 Figure 2 408 Figure 3 Figure 4 Figure 7 Procedural amendment (voluntary) 1. Indication of the case Patent Application No. 1982-91202 3. Representative of the person making the amendment Moriya Shiki 4, Agent 5, Column 6 of the detailed description of the invention in the specification subject to amendment, Contents of the amendment (1) "Arc-extinguishing plate made of resin material" on page 7, line 14 of the specification Revised as "insulating board made of resin material."that's all
Claims (13)
遮断時に前記接触子間に生じるアークを消弧する回路し
ゃ断器の消弧装置であって、前記接触子側に開口したほ
ぼＵ字形の消弧板を複数枚互いに間隔を置いて重積関係
に保持してなるものにおいて、前記消弧板の両脚部の内
側に樹脂材料からなる絶縁板を配設したことを特徴とす
る回路しゃ断器の消弧装置。(1) An arc extinguishing device for a circuit breaker, which is disposed opposite to a pair of openable and closable contacts and extinguishes an arc generated between the contacts when current is cut off, the arc extinguishing device having a substantially A plurality of U-shaped arc-extinguishing plates are held in a stacked relationship at intervals, characterized in that an insulating plate made of a resin material is disposed inside both legs of the arc-extinguishing plates. Circuit breaker arc extinguishing device.
縁板には前記突起に対応した穴を設け、前記突起を前記
穴にかしめたことを特徴とする特許請求の範囲第１項記
載の回路しゃ断器の消弧装置。(2) A protrusion projecting inward is provided on both legs of the arc-extinguishing plate, a hole corresponding to the protrusion is provided in the insulating plate, and the protrusion is caulked into the hole. An arc extinguishing device for a circuit breaker according to item 1.
け、絶縁板には前記突起の全てに対応して穴を設け、前
記突起を前記穴にかしめたことを特徴とする特許請求の
範囲第１項または第２項記載の回路しゃ断器の消弧装置
。(3) Inwardly protruding protrusions are provided on both legs of all arc-extinguishing plates, holes are provided in the insulating plate corresponding to all of the protrusions, and the protrusions are caulked into the holes. An arc extinguishing device for a circuit breaker according to claim 1 or 2.
方へ突出した突起を設け、絶縁板には前記突起の全てに
対応した穴を設け、前記突起を前記穴にかしめたことを
特徴とする特許請求の範囲第１項または第２項記載の回
路しゃ断器の消弧装置。(4) Protrusions protruding inward are provided on both legs of the top arc-extinguishing plate and the bottom arc-extinguishing plate, holes corresponding to all of the protrusions are provided in the insulating plate, and the protrusions are The arc extinguishing device for a circuit breaker according to claim 1 or 2, characterized in that the hole is caulked.
方に間隔を置いて位置する保持部を設け、この保持部と
両脚部との間に絶縁板を挿入したことを特徴とする特許
請求の範囲第１項記載の回路しゃ断器の消弧装置。(5) A holding part is provided inside both legs of all arc-extinguishing plates and is located at a distance inward from both legs, and an insulating plate is inserted between this holding part and both legs. An arc extinguishing device for a circuit breaker according to claim 1.
徴とする特許請求の範囲第１項記載の回路しゃ断器の消
弧装置。(6) The arc extinguishing device for a circuit breaker according to claim 1, characterized in that an insulating plate is adhered to the inside of both legs of the arc extinguishing plate.
る特許請求の範囲第１項記載の回路しゃ断器の消弧装置
。(7) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of silicone resin.
する特許請求の範囲第１項記載の回路しゃ断器の消弧装
置。(8) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of polyester resin.
特許請求の範囲第１項記載の回路しゃ断器の消弧装置。(9) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of epoxy resin.
する特許請求の範囲第１項記載の回路しゃ断器の消弧装
置。(10) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of phenolic resin.
を混入したものからなることを特徴とする特許請求の範
囲第１項記載の回路しゃ断器の消弧装置。(11) The arc extinguishing device for a circuit breaker as set forth in claim 1, wherein the insulating plate is made of polyester resin mixed with glass fiber.
混入したものからなることを特徴とする特許請求の範囲
第１項記載の回路しゃ断器の消弧装置。(12) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of a mixture of phenolic resin and glass fiber.
ことを特徴とする特許請求の範囲第１項記載の回路しゃ
断器の消弧装置。(13) The arc extinguishing device for a circuit breaker according to claim 1, wherein the insulating plate is made of a fiber sheet of resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9120287A JPS63257138A (en) | 1987-04-13 | 1987-04-13 | Arc distinguisher for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9120287A JPS63257138A (en) | 1987-04-13 | 1987-04-13 | Arc distinguisher for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63257138A true JPS63257138A (en) | 1988-10-25 |
Family
ID=14019846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9120287A Pending JPS63257138A (en) | 1987-04-13 | 1987-04-13 | Arc distinguisher for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63257138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012174686A (en) * | 2011-02-22 | 2012-09-10 | Ls Industrial Systems Co Ltd | Circuit breaker with arc-extinguishing part |
| WO2020241397A1 (en) * | 2019-05-28 | 2020-12-03 | 三菱電機株式会社 | Direct-current circuit breaker |
-
1987
- 1987-04-13 JP JP9120287A patent/JPS63257138A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012174686A (en) * | 2011-02-22 | 2012-09-10 | Ls Industrial Systems Co Ltd | Circuit breaker with arc-extinguishing part |
| US8772665B2 (en) | 2011-02-22 | 2014-07-08 | Lsis Co., Ltd. | Circuit breaker with arc extinguishing mechanism |
| WO2020241397A1 (en) * | 2019-05-28 | 2020-12-03 | 三菱電機株式会社 | Direct-current circuit breaker |
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