JPS6132766B2 - - Google Patents
Info
- Publication number
- JPS6132766B2 JPS6132766B2 JP4643077A JP4643077A JPS6132766B2 JP S6132766 B2 JPS6132766 B2 JP S6132766B2 JP 4643077 A JP4643077 A JP 4643077A JP 4643077 A JP4643077 A JP 4643077A JP S6132766 B2 JPS6132766 B2 JP S6132766B2
- Authority
- JP
- Japan
- Prior art keywords
- movable
- contact
- arc
- fixed
- arc horn
- 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
- 238000010292 electrical insulation Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004904 shortening Methods 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- 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
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
Description
【発明の詳細な説明】
この発明は開閉器に発生するアークを可動側に
設けた瞬時ブロアウトコイルによる磁気駆動によ
つて消弧する磁気吹消消弧装置に係り、特に接点
間で発生したアークがアークホーンに転流するま
での時間すなわち転流時間を短くすることが可能
な開閉器の磁気吹消消弧装置に関する。Detailed Description of the Invention The present invention relates to a magnetic blowing arc extinguishing device that extinguishes arcs generated in a switch by magnetically driving an instantaneous blowout coil provided on the movable side, and particularly relates to The present invention relates to a magnetic blowing arc extinguishing device for a switch that can shorten the time until commutation of the current to the arc horn, that is, the commutation time.
第１図は従来の磁気吹消消弧装置の１例を示す
断面図である。図において、１は電源側端子、２
は電源側端子１に接続された固定接触子で、接点
３を有する。４は負荷側端子、５は可動接触子
で、接点６を有する。７は可動腕であり、負荷側
端子４と可動腕７とはシヤント８で接続されてお
り、可動接触子５は可動腕７に固定されている。
９は磁器等の絶縁物で成形された消弧室、１０は
消弧室９に固定された固定側アークホーンであ
り、クリツプ１１によつて電源側端子１に接続さ
れている。１２は消弧室９に固定された可動側ア
ークホーンで、ブロアウトコイル１３を介して負
荷側端子４に接続されている。１４はブロアウト
コイルの鉄心で、この鉄心１４には図示していな
い磁極板が接続されており、磁極板は消弧室９に
固定されている。 FIG. 1 is a sectional view showing an example of a conventional magnetic blowing arc extinguishing device. In the figure, 1 is the power supply side terminal, 2
is a fixed contact connected to the power supply side terminal 1, and has a contact 3. 4 is a load side terminal, 5 is a movable contactor, and has a contact point 6. 7 is a movable arm, the load side terminal 4 and the movable arm 7 are connected by a shunt 8, and the movable contact 5 is fixed to the movable arm 7.
9 is an arc extinguishing chamber made of an insulating material such as porcelain; 10 is a fixed arc horn fixed to the arc extinguishing chamber 9; and connected to the power source terminal 1 by a clip 11. A movable arc horn 12 is fixed to the arc extinguishing chamber 9 and is connected to the load terminal 4 via a blowout coil 13. Reference numeral 14 denotes an iron core of the blowout coil. A magnetic pole plate (not shown) is connected to this iron core 14, and the magnetic pole plate is fixed to the arc extinguishing chamber 9.
電源側端子１、負荷側端子４、消弧室９は図示
していない絶縁台に固定されており、可動腕７は
図示していない操作機構に連結されている。 The power supply side terminal 1, the load side terminal 4, and the arc extinguishing chamber 9 are fixed to an insulating stand (not shown), and the movable arm 7 is connected to an operation mechanism (not shown).
従来の磁気吹消消弧装置は上記のように構成さ
れ、開路時に次のように作用する。図示されてな
い操作機構によつて可動腕７が駆動されて可動接
点６が固定接点３との接触状態から第１図に示す
開極状態となり、アーク１５が可動接点６と固定
接点３の間に発生する。このアーク１５は接点近
くで発生する電磁力により駆動されて固定側アー
クホーン１０と可動側アークホーン１２の間に転
流しアーク１６の状態となる。ここで、電流が可
動側アークホーン１２に直列に接続されたブロア
ウトコイル１３に流れ磁束を発生する。この磁束
は鉄心１４および図示していない磁極板によつて
消弧室９の内部に第１図の紙面に垂直方向に吹消
磁束を作り、この磁束とアーク１６の間の電磁力
によりアーク１６はさらに上方に駆動され消弧室
９で冷却され電流のしや断が行なわれる。 The conventional magnetic blowing arc extinguishing device is constructed as described above, and operates as follows when the circuit is opened. The movable arm 7 is driven by an operation mechanism (not shown), and the movable contact 6 changes from the state of contact with the fixed contact 3 to the open state shown in FIG. occurs in This arc 15 is driven by an electromagnetic force generated near the contact point, and is commutated between the fixed side arc horn 10 and the movable side arc horn 12, and becomes an arc 16. Here, current flows through the blowout coil 13 connected in series to the movable arc horn 12 to generate magnetic flux. This magnetic flux creates an extinguishing magnetic flux inside the arc extinguishing chamber 9 in a direction perpendicular to the paper surface of FIG. It is further driven upward and cooled in the arc extinguishing chamber 9, where the current is interrupted.
しかしながら、上記の従来の開閉器の磁気吹消
消弧装置においては次のような欠点がある。第２
図は第１図の接点付近を書いたものであり、第２
図ａは閉路状態、第２図ｂは開極初期、第２図ｃ
は開極完了時を示す。固定側および可動側の接触
子２，５とアークホーン１０，１１の配置は開極
完了時の絶縁耐力を考えると、固定側アークホー
ン１０と可動側アークホーン１２の最短距離l1、
可動側アークホーン１２と固定接触子２との最短
距離l2、固定側アークホーン１０と可動接触子５
との最短距離l3、固定接触子２と可動接触子５と
の最短距離l4は、十分に大きくなければならな
い。 However, the above-described conventional magnetic blowing arc extinguishing device for a switch has the following drawbacks. Second
The figure depicts the vicinity of the contact points in Figure 1, and
Figure a is the closed circuit state, Figure 2 b is the initial stage of opening, Figure 2 c
indicates the time when contact opening is completed. The arrangement of the contacts 2, 5 and the arc horns 10, 11 on the fixed side and the movable side is determined by the shortest distance l 1 between the fixed side arc horn 10 and the movable side arc horn 12, considering the dielectric strength at the time of completion of contact opening.
The shortest distance l 2 between the movable side arc horn 12 and the fixed contact 2, the fixed side arc horn 10 and the movable contact 5
The shortest distance l 3 between the fixed contact 2 and the movable contact 5 and the shortest distance l 4 between the fixed contact 2 and the movable contact 5 must be sufficiently large.
第２図に示した構成においては、接点間で発生
したアーク１５をアークホーン間に転流させなけ
ればならないが、開極初期には第２図ｂに示した
ように固定接触子２の先端部１７と固定側アーク
ホーン１０の先端部１８の距離は短いが、可動接
触子５の先端部１９と可動側アークホーン１２の
先端部２０との距離が長く、この状態ではアーク
は転流しない。 In the configuration shown in Fig. 2, the arc 15 generated between the contacts must be commutated between the arc horns, but at the beginning of contact opening, the tip of the fixed contact 2 as shown in Fig. 2b. The distance between the part 17 and the tip 18 of the fixed arc horn 10 is short, but the distance between the tip 19 of the movable contact 5 and the tip 20 of the movable arc horn 12 is long, and the arc does not commutate in this state. .
転流させるためには、可動接触子５がさらに駆
動されて可動接触子５の先端部１９が可端側アー
クホーン１２の先端部２０により接近する必要が
ある。従つて、接点が開極を始めてからアークが
アークホーンへ転流するまでの時間すなわち転流
時間が長く、接点及び接触子上にアークが長く存
在し、接点及び接触子の消耗が大きく、又、アー
ク電圧の上昇率が低いこととなる。 In order to commutate, the movable contact 5 needs to be further driven so that the tip 19 of the movable contact 5 approaches the tip 20 of the removable arc horn 12. Therefore, the time from when the contact begins to open until the arc commutates to the arc horn, that is, the commutation time, is long, the arc remains on the contact and the contact for a long time, and the wear and tear of the contact and the contact is large. , the rate of increase in arc voltage will be low.
この発明は従来のこのような問題点に着目して
為されたもので、上記の転流時間が長いという問
題点を解決することを目的とする。 The present invention has been made in view of these conventional problems, and aims to solve the above-mentioned problem of long commutation time.
以下、この発明を図面に基づいて説明する。先
ず構成を説明すると、第３図はこの発明の一実施
例を示す断面図であり、図において同一符号は同
一、又は部分を示す。２１は可動接触子５と電気
的絶縁を保つて可動接触子５に固定された金属性
のアークホーンであり、シヤント２２によりブロ
アウトコイル１３と直列に接続されている。２３
は可動アークホーンである。 The present invention will be explained below based on the drawings. First, to explain the structure, FIG. 3 is a sectional view showing one embodiment of the present invention, and the same reference numerals in the figures indicate the same or parts. A metal arc horn 21 is fixed to the movable contact 5 while maintaining electrical insulation from the movable contact 5, and is connected in series to the blowout coil 13 by a shunt 22. 23
is a movable arc horn.
この発明は上記のように構成されるが、その作
用を第４図により説明する。第４図ａは閉路状
態、第４図ｂは開極初期、第４図ｃは開極完了時
の状態を示す。このような構成にすれば、可動接
触子先端部１９とアークホーン２１の先端部２４
の距離は十分に小さくでき、第４図ｂに示すよう
に開極初期においても接触子間のアーク１５はア
ークホーン２１と固定側アークホーン１８との間
にすみやかに転流する。アークがアークホーン２
１に転流しアーク２５の状態となればシヤント２
２を介してブロアウトコイルが作用し、鉄心１４
および図示していない磁極板によつて消弧室９の
内部に吹消磁束が発生する。アークホーン２１と
可動側アークホーン２３との距離も十分小さくで
きるので、アーク２５は可動側アークホーン２３
にすみやかに転流しアーク２６となる。 This invention is constructed as described above, and its operation will be explained with reference to FIG. FIG. 4a shows the closed circuit state, FIG. 4b shows the initial state of opening, and FIG. 4c shows the state when the opening is completed. With such a configuration, the movable contact tip 19 and the tip 24 of the arc horn 21
The distance can be made sufficiently small, and the arc 15 between the contacts can be quickly commutated between the arc horn 21 and the stationary arc horn 18 even in the initial stage of contact opening, as shown in FIG. 4b. Ark is Ark Horn 2
1 and becomes the state of arc 25, shunt 2
The blowout coil acts through the iron core 14
A blow-out magnetic flux is generated inside the arc-extinguishing chamber 9 by a magnetic pole plate (not shown). The distance between the arc horn 21 and the movable arc horn 23 can also be made sufficiently small, so that the arc 25 is connected to the movable arc horn 23.
It quickly commutates and becomes an arc 26.
以上のようにこの発明によれば、可動側に瞬時
ブロアウトコイルを有する開閉器の磁気吹消消弧
装置において、可動接触子と電気的絶縁を保つて
可動接触子に固定されたアークホーンを備え、こ
のアークホーンにブロアウトコイルを直列に接続
したことにより可動接触子先端部とアークホーン
先端部とアークホーン先端部の距離を十分に小さ
くすることが可能となり、転流時間を短くする効
果が得られる。また、転流時間を短くできること
により接点、接触子の消耗量を小さくでき、更に
又、アーク電圧の上昇率も高くすることができる
効果が得られる。 As described above, according to the present invention, a magnetic blowing arc extinguishing device for a switch having an instantaneous blowout coil on the movable side includes an arc horn fixed to the movable contact while maintaining electrical insulation from the movable contact. By connecting a blowout coil to this arc horn in series, it is possible to sufficiently reduce the distance between the movable contact tip, the arc horn tip, and the arc horn tip, which has the effect of shortening the commutation time. can get. Furthermore, since the commutation time can be shortened, the amount of wear on the contacts and contacts can be reduced, and the rate of increase in arc voltage can also be increased.
第１図は従来の磁気吹消消弧装置の断面図、第
２図ａ，ｂ，ｃはその接点付近の作用の説明図、
第３図はこの発明の一実施例の断面図、第４図
ａ，ｂ，ｃはその接点付近の作用の説明図であ
る。
図において、７は電源側端子、２は固定接触
子、３は接点、４は負荷側端子、５は可動接触
子、６は接点、７は可動腕、８はシヤント、９は
消弧室、１０は固定側アークホーン、１１はクリ
ツプ、１３はブロアウトコイル、１４は鉄心、２
１はアークホーン、２２はシヤント、２３は可動
側アークホーンである。なお、図中、同一符号は
夫々同一、又は相当部分を示す。
Fig. 1 is a sectional view of a conventional magnetic blowing arc extinguishing device, Fig. 2 a, b, and c are explanatory diagrams of the action near the contact points,
FIG. 3 is a sectional view of one embodiment of the present invention, and FIGS. 4a, b, and c are explanatory diagrams of the operation near the contact points. In the figure, 7 is a power supply side terminal, 2 is a fixed contact, 3 is a contact, 4 is a load side terminal, 5 is a movable contact, 6 is a contact, 7 is a movable arm, 8 is a shunt, 9 is an arc extinguishing chamber, 10 is a fixed arc horn, 11 is a clip, 13 is a blowout coil, 14 is an iron core, 2
1 is an arc horn, 22 is a shunt, and 23 is a movable arc horn. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
対峙して配設された固定接触子及び可動接触子
と、可撓性のシヤントを介して負荷側端子に接続
され、自らの回動により上記両接触子の接点どう
しの接触を解放する上記可動腕と、上記電源側端
子に接続され、上記固定接触子側に配設された固
定側アークホーンと、ブロアウトコイルを介して
上記負荷側端子に接続され、上記可動接触子側に
配設された可動側アークホーンと、上記可動腕に
上記可動接触子と電気的絶縁を保持して固定され
ると共に可撓性を有するシヤントを介して上記ブ
ロアウトコイルに接続されることにより上記可動
側アークホーンと上記可動接触子との間に配設さ
れ、上記可動接触子と共に回動するアークホーン
とを備えた開閉器の磁気吹消消弧装置。1 A fixed contact and a movable contact are respectively fixed to the power supply side terminal and the movable arm, and are arranged facing each other, and are connected to the load side terminal via a flexible shunt, and by their own rotation, the above-mentioned The movable arm releases contact between the contacts of both contacts, the fixed arc horn connected to the power supply side terminal and disposed on the fixed contact side, and the load side terminal via the blowout coil. A movable arc horn is connected to the movable contact, and the movable arc horn is connected to the movable contact, and the movable arm is fixed to the movable arm while maintaining electrical insulation from the movable contact, and the shunt is flexible. A magnetic blowout arc extinguishing device for a switch, comprising: an arc horn that is connected to a blowout coil and is disposed between the movable side arc horn and the movable contact, and rotates together with the movable contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4643077A JPS53131477A (en) | 1977-04-21 | 1977-04-21 | Device for extinguishing switch by magnetic blow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4643077A JPS53131477A (en) | 1977-04-21 | 1977-04-21 | Device for extinguishing switch by magnetic blow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53131477A JPS53131477A (en) | 1978-11-16 |
| JPS6132766B2 true JPS6132766B2 (en) | 1986-07-29 |
Family
ID=12746924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4643077A Granted JPS53131477A (en) | 1977-04-21 | 1977-04-21 | Device for extinguishing switch by magnetic blow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53131477A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133726A1 (en) * | 2005-06-16 | 2006-12-21 | Secheron S.A. | Blow-out device for an electromechanical dc circuit breaker |
-
1977
- 1977-04-21 JP JP4643077A patent/JPS53131477A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53131477A (en) | 1978-11-16 |
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