JPH01624A - switch - Google Patents

switch

Info

Publication number
JPH01624A
JPH01624A JP62-142380A JP14238087A JPH01624A JP H01624 A JPH01624 A JP H01624A JP 14238087 A JP14238087 A JP 14238087A JP H01624 A JPH01624 A JP H01624A
Authority
JP
Japan
Prior art keywords
arc
arc extinguishing
fixed contact
movable contact
switch
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
Application number
JP62-142380A
Other languages
Japanese (ja)
Other versions
JPS64624A (en
Inventor
茂 増田
平木 春海
立石 時雄
貞次郎 森
Original Assignee
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP14238087A priority Critical patent/JPS64624A/en
Priority claimed from JP14238087A external-priority patent/JPS64624A/en
Publication of JPH01624A publication Critical patent/JPH01624A/en
Publication of JPS64624A publication Critical patent/JPS64624A/en
Pending legal-status Critical Current

Links

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] この発明は電流の開閉を行なう開閉器、特にその消弧室
内に発生したガスの吹出口に放圧弁を設けた開閉器に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a switch for switching on and off an electric current, and particularly to a switch having a pressure relief valve at the outlet of the gas generated in the arc extinguishing chamber.

この発明の適用開閉器の一例として電磁接触器や配線用
遮断器を挙げることができる。
Examples of switches to which the present invention can be applied include electromagnetic contactors and molded circuit breakers.

[従来の技術] 第3図は従来の開閉器の一例の断面図、第4図は第3図
のものの消弧動作説明用の要部断面図である。図におい
て、(1)はプラスチックで形成された取付台、(2)
はこの取付台上に珪素鋼板で積層された固定鉄心、(3
)は固定鉄心(2)に対向設置されこれと同じく珪素鋼
板で積層された可動鉄心、(4)は可動鉄心(3)と固
定鉄心(2)とを引外しばね(図示せず)に抗して吸着
させる駆動力を付与する操作コイル、(5)はプラスチ
ックで形成され、角窓を有するクロスバ−で、その下端
では可動鉄心(3)を保持している。(6)はクロスバ
−(5)の角窓に挿入されて押しばね(7)により保持
されている可動接触子、(6A)は可動接触子(8)に
設けられた可動接点、(6B)は可動接触子(8)の先
端に設けられたアークホーン、(8)は可動接触子(6
)と対向してiけられ、電流の通電を行なう固定接触子
、(8A)はこの固定接触子(8)に設けられた固定接
点、(8B)は固定接触子(8)の固定接点(8A)側
端部に該端部表面と同−表面高さを有するように一体に
形成されたアークランナ部材、(81)は同じくこの固
定接触子(8)の端子部を示す。
[Prior Art] FIG. 3 is a sectional view of an example of a conventional switch, and FIG. 4 is a sectional view of a main part of the switch shown in FIG. 3 for explaining the arc extinguishing operation. In the figure, (1) is a mounting base made of plastic, (2)
is a fixed core laminated with silicon steel plates on this mounting base, (3
) is a movable core that is placed opposite to the fixed core (2) and laminated with silicon steel plates, and (4) is a movable core that is placed opposite the fixed core (2) and is laminated with silicon steel plates. The operating coil (5), which provides the driving force for adsorption, is a crossbar made of plastic and having a square window, and its lower end holds the movable core (3). (6) is a movable contact inserted into the corner window of the crossbar (5) and held by a push spring (7); (6A) is a movable contact provided on the movable contact (8); (6B) (8) is the arc horn provided at the tip of the movable contact (8), and (8) is the arc horn provided at the tip of the movable contact (6).
), the fixed contact element (8A) is a fixed contact provided on the fixed contact element (8), and (8B) is the fixed contact element (8B) of the fixed contact element (8). 8A) An arc runner member integrally formed at the side end so as to have the same surface height as the end surface. (81) also indicates the terminal portion of this fixed contact (8).

さらに、(9)は電磁接触器本体を外部回路と接続する
ための端子ねじ、(10)は固定接触子(8)を取付け
るベース、(11)は電磁接触器上面を覆うカバーで、
その内部には固定接点(8A)と可動接点(6A)との
間に生じるアーク(12)を消弧するたメツ磁性体の金
属消弧板(13)を設けており、消弧室が形成されてい
る。金属消弧板(13)は第3図から明らかなように、
可動接触子(6)と対向させ固定接触子(8)上方に、
これと平行に、かつ互いに所定間隔を隔てて累積並設さ
れている。(15)は可動接触子(8)の上方に設けら
れた転流板である。
Furthermore, (9) is a terminal screw for connecting the electromagnetic contactor main body with an external circuit, (10) is a base for attaching the fixed contact (8), and (11) is a cover that covers the top surface of the electromagnetic contactor.
Inside, there is a metal arc extinguishing plate (13) made of magnetic material that extinguishes the arc (12) generated between the fixed contact (8A) and the movable contact (6A), forming an arc extinguishing chamber. has been done. As is clear from Fig. 3, the metal arc-extinguishing plate (13)
Above the fixed contact (8) facing the movable contact (6),
They are cumulatively arranged parallel to this and spaced apart from each other by a predetermined interval. (15) is a commutation plate provided above the movable contactor (8).

上記構成を有するため、この電磁接触器において操作コ
イルを消磁すると、図示されていない引外しばねにより
可動鉄心(3)が固定鉄心(2)より開離し、クロスバ
−(5)も、第3図に示す状態を占め、固定接点(8A
)と可動接点(6A)とが開離して固定接点(8A)と
可動接点(6A)との間にアーク(12)が生じる。こ
のアーク(12)は第4図に示すように金属消弧板(1
3)に吸引されアーク(12A)のように引き延ばされ
、(12B) 、 (12C)の状態を経由し、アーク
ホーン(6B)上のアークの足が転流FfL(15)に
転移し、アーク(12)は最終的にアーク(210)の
ようになって、金属消弧板(Ha)〜(13g)により
冷却されて消弧される。
Since it has the above configuration, when the operating coil is demagnetized in this electromagnetic contactor, the movable core (3) is separated from the fixed core (2) by a tripping spring (not shown), and the crossbar (5) is also separated from the fixed core (2) as shown in FIG. The fixed contact (8A
) and the movable contact (6A) are opened and an arc (12) is generated between the fixed contact (8A) and the movable contact (6A). This arc (12) is caused by a metal arc extinguishing plate (1
3), it is drawn out like an arc (12A), passes through the states of (12B) and (12C), and the leg of the arc on the arc horn (6B) is transferred to the commutation FfL (15). , the arc (12) finally becomes an arc (210), which is cooled and extinguished by the metal arc extinguishing plates (Ha) to (13g).

[発明が解決しようとする問題点] 上記のような従来の開閉器では、可動接点(6A)と固
定接点(8A)との間に発生したアーク(12)を消弧
する際、消弧室カバー(11)内にガスが多量に発生す
るため、すなわち消弧室内にアークドガスが多量に発生
するため、これを逃す吹出穴(IIB)が多数設けられ
ている。しかし、この穴(IIB)を大きくすると消弧
室内の圧力が上がらず遮断性能が落ち、また外部からの
ごみ等が入り易くなり接触不良や遮断性能が低下するこ
とがあった。また、この穴(IIB)が小さい場合には
、外部からのごみ等の侵入を防ぐ効果はあるが内圧が上
がり過ぎると共にアークドガスが外部へ放出されにくい
ため、遮断性能が劣るという問題点があった。
[Problems to be Solved by the Invention] In the conventional switch as described above, when extinguishing the arc (12) generated between the movable contact (6A) and the fixed contact (8A), the arc extinguishing chamber is Since a large amount of gas is generated within the cover (11), that is, a large amount of arced gas is generated within the arc extinguishing chamber, a large number of blow-off holes (IIB) are provided to release the gas. However, when this hole (IIB) is made larger, the pressure inside the arc extinguishing chamber does not increase and the shutoff performance deteriorates, and dirt and the like from the outside tend to enter, resulting in poor contact and a drop in the shutoff performance. In addition, if this hole (IIB) is small, it has the effect of preventing dust from entering from the outside, but there is a problem that the internal pressure increases too much and it is difficult for arced gas to be released to the outside, resulting in poor shutoff performance. .

なお、ここでアークドガスとは、アークが出た時に接点
材料やその他の物が蒸発することにより生ずるガスのこ
とである。
Note that the arced gas here refers to the gas that is generated when contact materials and other materials evaporate when an arc occurs.

この発明は、かかる問題点を解決するためになされたも
ので、消弧室のアークドガス放出口に放圧弁を設けるこ
とにより、外部からの異物の侵入を防ぐと共に遮断性能
を向上した開閉器を得ることを目的とする。
This invention was made to solve this problem, and by providing a pressure relief valve at the arced gas discharge port of the arc extinguishing chamber, it is possible to obtain a switch that prevents foreign matter from entering from the outside and has improved shutoff performance. The purpose is to

[問題点を解決するための手段] この発明に係る開閉器は、消弧室のアークドガス放出口
に放圧弁を設けたものである。
[Means for Solving the Problems] A switch according to the present invention is provided with a pressure relief valve at the arced gas discharge port of the arc extinguishing chamber.

[作用] この開閉器においては、消弧室のアークドガス放出口に
放圧弁を設けたから、遮断時に適当な内圧が得られ、そ
の後速やかにアークドガスを効果的に外部へ放出するこ
とができる。したがって、遮断性能が著しく向上する。
[Function] In this switch, since a pressure relief valve is provided at the arced gas discharge port of the arc extinguishing chamber, an appropriate internal pressure can be obtained at the time of shutoff, and then the arced gas can be effectively discharged to the outside. Therefore, the interrupting performance is significantly improved.

さらに外部からの異物の侵入が防止される。Furthermore, intrusion of foreign matter from the outside is prevented.

[実施例] 第1図はこの発明の一実施例を示す断面図である。図に
おいて、第3図及び第4図と同一符号の部分は同一部分
を示し、(IIA)はアークドガスの吹出口(IIB)
に設けられた放圧弁である。この放圧弁(IIA)は、
常時は例えばスプリング(図示せず)により矢印(21
)方向の力を受けて吹出口(IIB)をふさいでいる。
[Embodiment] FIG. 1 is a sectional view showing an embodiment of the present invention. In the figure, parts with the same symbols as in Figures 3 and 4 indicate the same parts, and (IIA) is the arced gas outlet (IIB).
This is a pressure relief valve installed in the This pressure relief valve (IIA) is
For example, the arrow (21
) is blocking the air outlet (IIB).

そして、このスプリングの力は、可動接点(BA)と固
定接点(8A)との開離によりアークが発生し、金属消
弧板(13)に吸引されて消弧する際発生するアークド
ガスの内圧が適当な値になった時、放圧弁(IIA)が
矢印(22)方向に開くように設定しておく。第1図は
放圧弁(IIA)が開いた状態を示している。
The force of this spring is caused by the internal pressure of the arced gas generated when an arc is generated when the movable contact (BA) and the fixed contact (8A) are separated, and the arc is extinguished by being attracted to the metal arc extinguishing plate (13). The pressure relief valve (IIA) is set to open in the direction of arrow (22) when the appropriate value is reached. FIG. 1 shows the pressure relief valve (IIA) in an open state.

上記のように構成された開閉器においては、可動接点(
6A)と固定接点(8A)とが開離した時発生するアー
ク(12)が金属消弧板(13a) 〜(lag)に吸
引され、(12D)となって消弧される際、消弧室内に
多量に発生するアークドガスは、適当な内圧になると、
その後速やかに外部へ放出される、また、常時は放圧、
弁(IIA)が閉じているから外部から異物が侵入しな
い。
In the switch configured as described above, the movable contact (
When the arc (12) generated when the fixed contact (8A) and the fixed contact (8A) are opened is attracted to the metal arc extinguishing plates (13a) to (lag) and extinguished as (12D), the arc is extinguished. When the arced gas that is generated in large quantities indoors reaches an appropriate internal pressure,
After that, it is immediately released to the outside, and the pressure is constantly released.
Since the valve (IIA) is closed, foreign matter does not enter from the outside.

第2図はこの発明の別の実施例を示す断面図である。こ
の実施例では、金属消弧板(13)と金属消弧室(11
)に設けられた放圧弁(IIA)との間にアークに含ま
れるイオン化した金属を吸着、除去する例えば多孔質金
属からなるアーク吸収体(20)が設けられている。こ
のアーク吸収体(20)は多孔質金属の他には多孔質セ
ラミックス、多孔質紙、金網。
FIG. 2 is a sectional view showing another embodiment of the invention. In this embodiment, a metal arc extinguishing plate (13) and a metal arc extinguishing chamber (11) are used.
) is provided with an arc absorber (20) made of, for example, porous metal, which adsorbs and removes ionized metal contained in the arc. In addition to porous metal, this arc absorber (20) is made of porous ceramics, porous paper, and wire mesh.

打抜金網、ワイヤーコンベヤーベルト、デミスタ−、エ
ヤーフィルター、エキスバンドメタル等を使用して形成
される。
It is formed using punched wire mesh, wire conveyor belt, demister, air filter, expanded metal, etc.

このように、金属消弧板(13)と放圧弁(IIA)と
の間にアーク吸収体(20)を設けることにより、開閉
器の遮断時に発生したイオン化金属を含む高温のアーク
ドガスはアーク吸収体(2a)を通る際に熱エネルギー
並びにイオン化した金属が吸収されて低温ガスとなり、
金属消弧室(11)内の圧力が適度に上がった時に放圧
弁(IIA)が開き、これを通って外部へ放出される。
In this way, by providing the arc absorber (20) between the metal arc extinguishing plate (13) and the pressure relief valve (IIA), the high temperature arced gas containing ionized metal generated when the switch is shut off is transferred to the arc absorber. When passing through (2a), thermal energy and ionized metal are absorbed and become a low-temperature gas.
When the pressure within the metal arc extinguishing chamber (11) rises to an appropriate level, the pressure relief valve (IIA) opens and the pressure is discharged to the outside through this.

従って、高温ガスのまま金属消弧室(11)の外部に放
出していたときに生じていたアースタッチ(地絡)によ
る相関短絡事故が防止され、開閉器と外部金属との間の
アーククリアランスを縮少することもできる。
Therefore, the related short circuit accident due to earth touch (earth fault) that occurred when high-temperature gas was discharged to the outside of the metal arc extinguishing chamber (11) is prevented, and the arc clearance between the switch and the external metal is prevented. can also be reduced.

[発明の効果] この発明は以上説明したとおり、消弧室のアークドガス
放出口に放圧弁を設けたから、遮断時に適当な内圧が得
られ、その後進やかにアークドガスを効果的に外部へ放
出することができる。したがって、遮断性能が著しく向
上する。さらに外部からの異物の侵入が防止される。
[Effects of the Invention] As explained above, in this invention, since a pressure relief valve is provided at the arced gas discharge port of the arc extinguishing chamber, an appropriate internal pressure can be obtained at the time of shutoff, and the arced gas can then be effectively discharged to the outside. be able to. Therefore, the interrupting performance is significantly improved. Furthermore, intrusion of foreign matter from the outside is prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明の一実施例を示す断面図、第2図はこ
の発明の別の実施例を示す断面図、第3図は従来の開閉
器の一例を示す断面図、第4図は第3図のものの消弧動
作説明用の要部断面図である。 図において、(6)は可動接触子、(6A)は可動接点
、(8)は固定接触子、(8A)は固定接点、(11)
はカバー、(IIA)は放圧弁、(IIB)は吹出穴、
(13) 、 (13a)〜(13g)は金属消弧板で
ある。 なお、図中、同一符号は同−又は相当部分を示す。 第1図 13.13a−139: 1ZIkツ月5μしノ[第4
Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a sectional view showing another embodiment of the invention, Fig. 3 is a sectional view showing an example of a conventional switch, and Fig. 4 is a sectional view showing an example of a conventional switch. FIG. 4 is a sectional view of a main part of the one shown in FIG. 3 for explaining the arc extinguishing operation. In the figure, (6) is a movable contact, (6A) is a movable contact, (8) is a fixed contact, (8A) is a fixed contact, (11)
is the cover, (IIA) is the pressure relief valve, (IIB) is the blowout hole,
(13) and (13a) to (13g) are metal arc-extinguishing plates. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. Figure 1 13.13a-139: 1ZIk 5 μm [4th]
figure

Claims (1)

【特許請求の範囲】[Claims] 固定接触子に接合された固定接点、この固定接点に対向
し、可動接触子に接合して設けられた可動接点、固定接
触子に平行状に互いに所定間隔を隔ててかつ可動接触子
の先端側に複数枚累積並設した金属消弧板、上記固定接
点、上記可動接点及び上記金属消弧板を覆う消弧室を備
えた開閉器において、上記消弧室内に発生するガスの吹
出口に放圧弁を設けたことを特徴とする開閉器。
A fixed contact joined to a fixed contact, a movable contact facing the fixed contact and joined to a movable contact, parallel to the fixed contact at a predetermined distance from each other, and on the tip side of the movable contact. In a switch equipped with an arc extinguishing chamber that covers a plurality of metal arc extinguishing plates, the fixed contact, the movable contact, and the metal arc extinguishing plate, the gas generated in the arc extinguishing chamber is discharged to the outlet. A switch characterized by being equipped with a pressure valve.
JP14238087A 1987-02-17 1987-06-09 Switch Pending JPS64624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14238087A JPS64624A (en) 1987-02-17 1987-06-09 Switch

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3253987 1987-02-17
JP62-32539 1987-02-17
JP14238087A JPS64624A (en) 1987-02-17 1987-06-09 Switch

Publications (2)

Publication Number Publication Date
JPH01624A true JPH01624A (en) 1989-01-05
JPS64624A JPS64624A (en) 1989-01-05

Family

ID=26371132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14238087A Pending JPS64624A (en) 1987-02-17 1987-06-09 Switch

Country Status (1)

Country Link
JP (1) JPS64624A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106098438B (en) * 2016-08-10 2018-05-22 李蕊名 One kind has high breaking capacity arc quenching system

Similar Documents

Publication Publication Date Title
JP3334520B2 (en) DC circuit breaker
US4616203A (en) Electromagnetic contactor
EP1208574A2 (en) Circuit breaker arc exhaust baffle with variable aperture
US4511772A (en) Arc extinguishing structure for electrical switching device
CN110289196B (en) High-reliability direct current contactor and contact assembly machining method applied to same
US5847630A (en) Compact circuit breaker incorporating a polymer current limiter
JPH01624A (en) switch
JPH0116257Y2 (en)
JPS61193312A (en) Switch
KR0176736B1 (en) Moving contact for circuit breaker
JPH01189833A (en) Arc extinguishing device for circuit breaker
JPH0339362B2 (en)
JPH01194221A (en) Switch
JPH0524099Y2 (en)
KR19980042913U (en) Gas Discharge Structure of Arc Box for Magnetic Contactor
JPS6313642Y2 (en)
JPH0234401B2 (en) DENRYOKUKAIHEIKI
JPS63108622A (en) Switch
JPS5987714A (en) Switch
JPH03230435A (en) Switch
JPS62219416A (en) Switch
JPS58899Y2 (en) Self-magnetic arc extinguishing device
JPS6255816A (en) Power switch
JPH04357633A (en) Exhausting structure for contact switch device
JPS5994313A (en) Power switch