JPS6367296B2 - - Google Patents
Info
- Publication number
- JPS6367296B2 JPS6367296B2 JP133779A JP133779A JPS6367296B2 JP S6367296 B2 JPS6367296 B2 JP S6367296B2 JP 133779 A JP133779 A JP 133779A JP 133779 A JP133779 A JP 133779A JP S6367296 B2 JPS6367296 B2 JP S6367296B2
- Authority
- JP
- Japan
- Prior art keywords
- arc
- horn
- arcing
- tip
- gap
- 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
Links
- 239000000945 filler Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000003302 ferromagnetic material Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 230000005291 magnetic effect Effects 0.000 description 22
- 230000004907 flux Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000001883 metal evaporation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は接触子を開離した際に生じたアーク
を、吹消用電磁線輪の吹消磁束により駆動し、ア
ークホーンに移動させ、引き伸して消弧するよう
にした直流しや断器の改良に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention drives the arc generated when the contact is opened by the blowing magnetic flux of the blowing electromagnetic wire ring, moves it to the arc horn, and stretches it. This invention relates to improvements in direct current and circuit breakers that extinguish arcs.
従来、直流しや断器において、アークをアーク
ホーンに移動させて急速に引伸ばして消弧させる
ために、実公昭43−12011号公報記載のように、
上下一対のアークホーンのうち上部アークホーン
の先端に球状突起部とその背側に凹部を設けたも
のがある。
Conventionally, in direct current or disconnection, in order to move the arc to the arc horn and rapidly stretch it to extinguish it, as described in Japanese Utility Model Publication No. 43-12011,
Among a pair of upper and lower arc horns, there is one in which the upper arc horn has a spherical protrusion at its tip and a recess on its back side.
上記構成において、上部アークホーンを陽極側
として使用する場合には、アークが上部アークホ
ーンの先端の球状突起部に移動してアークの脚点
を作る。そしてアークの一部は背側に回り込む
が、背側に凹部があるために、凹部に回り込んだ
アークの一部はアークの伸張方向に位置し高温と
なつている前記球状分岐部に戻り消滅する。 In the above configuration, when the upper arc horn is used as the anode side, the arc moves to the spherical protrusion at the tip of the upper arc horn to form a leg point of the arc. Then, a part of the arc wraps around to the dorsal side, but since there is a recess on the back side, the part of the arc that went around to the recess returns to the spherical branch, which is located in the direction of arc extension and is at a high temperature, and disappears. do.
また、陽極のアーク脚点は陰極の脚点にくらべ
て金属蒸発が盛んであるために温度は低い。従つ
て、上記実公昭43−12011号公報に記載のように、
アークホーンとアーキングブロツクとの突き合せ
部の工作上の間隙に石綿、セラミツクウール等の
耐熱詰物を充填することにより、間隙をなくして
空気の流通を阻止すれば、アーク脚点を必ず前記
球状突起部に戻らせることができる。 Further, the temperature at the anode arc leg point is lower than that at the cathode leg point because metal evaporation is more active. Therefore, as stated in the above-mentioned Utility Model Publication No. 43-12011,
If the gap between the arc horn and the arcing block is filled with a heat-resistant filling material such as asbestos or ceramic wool, the gap will be eliminated and air flow will be prevented. can be returned to the department.
ところで、サイリスタ応用回路網や直流電気車
の橋絡渡りに係る一部の直流しや断器では陽陰極
の使用が逆転する。このように、上部アークホー
ンを陰極側として使用する場合には、アークの脚
点は陽極側とは異なり摂氏3000度を超える熱電子
放射環境にあるため、磁束密度が100ガウス以上
ではフレーミングの左手の法側にしたがつて凹部
側に移つたアークの一部の脚点は電流方向が逆と
なるので、前記耐熱詰物の方向に駆動されてこれ
を熔融し貫通するようになる。
By the way, the use of anode and cathode is reversed in some DC circuits and disconnectors related to thyristor applied circuit networks and bridge crossings of DC electric vehicles. In this way, when using the upper arc horn as the cathode side, unlike the anode side, the arc foot point is in a thermionic radiation environment of over 3000 degrees Celsius, so if the magnetic flux density is 100 Gauss or more, the left side of the framing Since the current direction of some of the leg points of the arc that has moved to the concave portion side as the arc moves toward the concave portion side is reversed, the arc is driven in the direction of the heat-resistant filling, melting it and penetrating it.
本発明の目的は、この点に鑑みなされたもの
で、上部アークホーンを陽極及び陰極のいずれに
使用してもアークの脚点をアークホーンの先端に
戻すことができる直流しや断器を提供することに
ある。 The object of the present invention has been made in view of this point, and is to provide a DC current cutter that can return the leg of the arc to the tip of the arc horn even if the upper arc horn is used as an anode or a cathode. It's about doing.
〔課題を解決するための手段〕
本発明は上記目的を達成するために、上部アー
クホーン先端の球状突起部背側の凹部に接近した
位置でアーキングブロツクを突き合せ、この突き
合せ部の間隙を強磁性材よりなる間隔充填材で埋
めたのである。[Means for Solving the Problems] In order to achieve the above object, the present invention abuts arcing blocks at a position close to the recess on the back side of the spherical protrusion at the tip of the upper arc horn, and closes the gap between the abutting portions. They filled it with space filler made of ferromagnetic material.
強磁性材よりなる間隙充填材の誘起磁極による
反対方向の磁界の減磁界作用によつて周辺の吹消
磁束を減らし、アークの脚点が間隙充填材へ移動
するのを防止するのである。
The demagnetizing field effect of the magnetic field in the opposite direction by the induced magnetic pole of the gap filler made of ferromagnetic material reduces the surrounding blowout flux and prevents the arc leg from moving toward the gap filler.
以下本発明の一実施例を第１図、第２図につい
て説明する。１は上部の固定接触子で、これと対
向して下部の可動接触子２が位置している。これ
ら固定接触子１、可動接触子２を被うように上部
アークホーン３と下部アークホーン４が同じ方向
に向つて延在し、夫々の延在端を包囲する如くア
ーキングブロツク５が位置している。そして、上
部アークホーン３はアーキングブロツク５との突
き合せ部に例えば軟鋼やフエライトなどの粉末成
形し易い強磁性材よりなる間隙充填材６を埋めて
いる。そして、上部アークホーン３の外側には電
磁線輪８を巻付けた鉄心７が位置し、この鉄心７
の両端から前記アーキングブロツク５の外側にか
けて磁鉄板（図示せず）が位置している。また、
前記上部アークホーン３の先端部には球状突起部
ａが形成され、この球状突起部ａと前記アーキン
グブロツク５とその突き合せ端ｃとの間に凹部ｂ
を設けている。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 is an upper fixed contact, and a lower movable contact 2 is located opposite to this. An upper arc horn 3 and a lower arc horn 4 extend in the same direction so as to cover the fixed contact 1 and the movable contact 2, and an arcing block 5 is positioned so as to surround each extending end. There is. The upper arcing horn 3 is filled with a gap filler 6 made of a ferromagnetic material that is easily powder-molded, such as mild steel or ferrite, at the abutting portion with the arcing block 5. An iron core 7 around which an electromagnetic wire ring 8 is wound is located outside the upper arc horn 3.
A magnetic iron plate (not shown) is positioned from both ends of the arcing block 5 to the outside of the arcing block 5. Also,
A spherical protrusion a is formed at the tip of the upper arcing horn 3, and a recess b is formed between the spherical protrusion a and the arcing block 5 and its abutting end c.
has been established.
上記構成において、いま電磁線輪８の吹消磁束
により駆動されたアークＡはアークホーン３の球
状突起部ａに達し、ここがアークＡの脚点とな
り、一般には凹部ｂ側寄りに移るアークＡの一部
は、脚点の電流方向が逆となるので、凹部ｂから
突き合せ端ｃの方向に駆動されるのであるが、本
発明実施例によれば、強磁性材の間隙充填材６が
あるので、この間隙充填材６が前記吹消磁束によ
る誘起磁極により逆磁界を発生し、これが間隔充
填材６近傍の吹消磁束を減らす。このため、従来
において前記吹消磁束により駆動されていた凹部
ｂ側寄りに移つたアークＡの一部は駆動力が低下
し、間隙充填材６側へ移ることは防止される。 In the above configuration, the arc A now driven by the extinguished magnetic flux of the electromagnetic wire ring 8 reaches the spherical protrusion a of the arc horn 3, which becomes the leg point of the arc A, and generally the arc A moves toward the recess b side. In some cases, since the current direction at the leg points is reversed, they are driven from the recess b to the abutting end c, but according to the embodiment of the present invention, there is a gap filler 6 made of ferromagnetic material. Therefore, this gap filler 6 generates a reverse magnetic field due to the magnetic pole induced by the blow-out magnetic flux, which reduces the blow-out magnetic flux in the vicinity of the gap filler 6. For this reason, the driving force of a part of the arc A, which was conventionally driven by the blow-out magnetic flux and moved toward the recess b side, is reduced, and the arc A is prevented from moving toward the gap filler 6 side.
この作用を第３図、第４図について説明する。
電磁線輪８を励磁することにより鉄心７にＮ極、
Ｓ極が生じ、磁束は破線矢印及び○・印で示すよう
に鉄心７の両側に接続された磁鉄板を通り、磁鉄
板の対向空隙部を通る磁路を作る。この空隙内に
アークA1〜A3があると、白矢印の如く駆動力を
受けて球状突起部ａ側に移動する。そして、アー
クA3のように脚点が凹部ｂに接近すると、アー
クA1，A2の脚点に対して電流方向が逆になるの
で、従来構成の場合にはアークA3は逆向きの駆
動力を受けて凹部ｂから突き合せ端ｃに至り、間
隙充填材６に移る。しかしながら、この間隙充填
材６が強磁性材であるため、第３図に示すように
吹消磁束（破線矢印）によつてこの間隙充填材６
にN1，S1の誘起磁極が生じ、この誘起磁極N1，
S1による磁束（実線矢印及び印）によつて周辺
の吹消磁束は例えば数10ガウス程度まで弱めら
れ、アークA3を凹部ｂ側へ移動させる駆動力を
失効させることができる。したがつて、アーク
A3の脚点は球状突起部ａにとどまり消滅するの
である。 This effect will be explained with reference to FIGS. 3 and 4.
By exciting the electromagnetic wire ring 8, the iron core 7 has an N pole,
An S pole is generated, and the magnetic flux passes through the magnetic iron plates connected to both sides of the iron core 7, as shown by the broken line arrows and ○ marks, and creates a magnetic path passing through the opposing gaps of the magnetic iron plates. When arcs A 1 to A 3 are present in this gap, they receive a driving force and move toward the spherical protrusion a as indicated by the white arrows. When the leg points of arc A 3 approach concave part b, the current direction becomes opposite to the leg points of arcs A 1 and A 2 , so in the case of the conventional configuration, arc A 3 flows in the opposite direction. In response to the driving force, it reaches the abutting end c from the recess b and moves to the gap filler 6. However, since the gap filler 6 is a ferromagnetic material, as shown in FIG.
Induced magnetic poles N 1 , S 1 are generated, and these induced magnetic poles N 1 ,
The surrounding blow-out magnetic flux is weakened to, for example, several tens of Gauss by the magnetic flux caused by S 1 (solid line arrow and mark), and the driving force for moving the arc A 3 toward the concave portion b can be nullified. Therefore, the arc
The leg point of A 3 remains on the spherical protrusion a and disappears.
以上説明したように本発明によれば、上部アー
クホーンを陽極及び陰極のいずれに使用してもア
ークの脚点をアークホーンの先端に保持できるの
で、間隙充填材及びアーキングブロツクの損傷を
なくすことができる。
As explained above, according to the present invention, the leg point of the arc can be held at the tip of the arc horn even if the upper arc horn is used as an anode or a cathode, thereby eliminating damage to the gap filler and the arcing block. I can do it.
第１図は本発明の一実施例になるアークホーン
を施した直流しや断器を示す縦断側面図、第２図
は本発明の要部を拡大して示したアーク脚点の移
動説明図、第３図は吹消磁束と間隙充填材による
磁束との関係を示す平面図、第４図は磁束の分布
を示す第２図相当図である。
３……上部アークホーン、５……アーキングブ
ロツク、６……間隙充填材、７……鉄心、８……
電磁線輪、ａ……球状突起部、ｂ……凹部。
Fig. 1 is a vertical cross-sectional side view showing a direct current and disconnector equipped with an arc horn according to an embodiment of the present invention, and Fig. 2 is an explanatory diagram of the movement of the arc foot point showing an enlarged view of the main parts of the present invention. , FIG. 3 is a plan view showing the relationship between the blown magnetic flux and the magnetic flux due to the gap filler, and FIG. 4 is a diagram equivalent to FIG. 2 showing the distribution of the magnetic flux. 3... Upper arcing horn, 5... Arcing block, 6... Gap filler, 7... Iron core, 8...
Electromagnetic wire ring, a...spherical protrusion, b... recess.
Claims (1)
一対のアークホーンの先端部にアーキングブロツ
クを配置し、前記一対のアークホーンのうち上部
アークホーンの先端に球状突起部を設けると共
に、この球状突起部の背側に凹部を設けた直流し
や断器において、前記上部アークホーンと前記ア
ーキングブロツクとを前記凹部に接近した位置で
突き合せ、この突き合せ部の間隙を強磁性材より
なる間隙充填材で埋めたことを特徴とする直流し
や断器。1 Equipped with an electromagnetic wire ring and an iron core for arc blowing out, an arcing block is arranged at the tips of a pair of upper and lower arc horns, a spherical protrusion is provided at the tip of the upper arc horn of the pair of arc horns, and the spherical projection is provided at the tip of the upper arc horn of the pair of arc horns. In a direct current or disconnector having a concave portion on the back side of the protrusion, the upper arcing horn and the arcing block are butted against each other at a position close to the concave portion, and the gap between the butted portions is replaced with a gap made of ferromagnetic material. A direct current or disconnector characterized by being filled with a filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP133779A JPS5595222A (en) | 1979-01-12 | 1979-01-12 | Arc horn for dc breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP133779A JPS5595222A (en) | 1979-01-12 | 1979-01-12 | Arc horn for dc breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5595222A JPS5595222A (en) | 1980-07-19 |
| JPS6367296B2 true JPS6367296B2 (en) | 1988-12-23 |
Family
ID=11498678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP133779A Granted JPS5595222A (en) | 1979-01-12 | 1979-01-12 | Arc horn for dc breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5595222A (en) |
-
1979
- 1979-01-12 JP JP133779A patent/JPS5595222A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5595222A (en) | 1980-07-19 |
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