JPS5978415A - Power switching device - Google Patents
Power switching deviceInfo
- Publication number
- JPS5978415A JPS5978415A JP18880982A JP18880982A JPS5978415A JP S5978415 A JPS5978415 A JP S5978415A JP 18880982 A JP18880982 A JP 18880982A JP 18880982 A JP18880982 A JP 18880982A JP S5978415 A JPS5978415 A JP S5978415A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- plate
- movable contact
- grid
- heat
- 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
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】
この発明は電力開閉装置に係り、特に転流板の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power switchgear, and particularly to an improvement of a commutator plate.
従来の電力開閉装置は第１図・第２図・第３図のように
構成されている。A conventional power switchgear is constructed as shown in FIGS. 1, 2, and 3.
図において、（１）は耐熱性の材料よりなるアーク消弧
用のアークボックスを示し、磁性金属よりなるグリッド
（２）及び転流板（３）が開閉する電路の相数にｚｔ応
して配設固定されている。（４）Ｆｉクロスバ−１（５
）は可動接触、子、（６）は可動接触子（５）の両端に
取付けられた可動接点、（７）は可動接触子押え、（８
）は押えばね支え、（９）は接触子ばね、ＱＩＨストッ
パーである。上記接触子ばね（９）はストッパーαＯの
下部と押えばね支え（８）の下端部との間に圧縮固定さ
れており、押えばね支え（８）の上端部と可動接触子押
え（７）の上面および可動接触子（５）の上面と可動接
触子押え（７）の下面とは当接して条０立てられている
。In the figure, (1) shows an arc extinguishing arc box made of a heat-resistant material, and a grid (2) and a commutator plate (3) made of magnetic metal are arranged according to the number of phases of the electrical circuit to be opened and closed. The arrangement is fixed. (4) Fi crossbar 1 (5
) is a movable contact, (6) is a movable contact attached to both ends of the movable contact (5), (7) is a movable contact holder, (8
) is a pressing spring support, (9) is a contact spring, and a QIH stopper. The contact spring (9) is compressed and fixed between the lower part of the stopper αO and the lower end of the presser spring support (8), and is compressed between the upper end of the presser spring support (8) and the movable contact holder (7). The upper surface and the upper surface of the movable contact (5) and the lower surface of the movable contact holder (7) are in contact with each other and are erected.
かかる可動接触子は接触子ばね（９）を介して内蔵され
た周知の電磁駆動装置に接続される。Such a movable contact is connected to a built-in well-known electromagnetic drive device via a contact spring (9).
このような接点機構はＡ−Ａ断面を中心に左右対称に設
けられると共に紙面に直交する方向に開閉する電路の相
数に対応して配設されている。Such contact mechanisms are provided symmetrically with respect to the A-A cross section, and are arranged corresponding to the number of phases of the electrical circuits that open and close in a direction perpendicular to the plane of the paper.
第２図は第１図の要部である電流板（３）、可動接触子
（５）、可動接点（６）を模写的に示す斜視図であり、
また第１図における固定接触子α撞、固定接点α冶及び
アークランナαＱの部分を模写的に拡大すると第３図（
ａ）（ｂ）のようになっている。FIG. 2 is a perspective view schematically showing the main parts of FIG. 1: the current plate (3), the movable contact (5), and the movable contact (6).
In addition, when the portions of the fixed contact α, fixed contact α, and arc runner αQ in Figure 1 are schematically enlarged, Figure 3 (
a) It looks like (b).
かかる電力開閉装置において、固定接点（１４１と可動
接点（６）とが開離された場合、両接点間に生じたアー
クの一端に可動接点（６）から転流板（３）へ転移する
一方、その他端は、固定接点（１４１からアークランす
αＱへ転移する。転移したアークの他端はアークランナ
００上を端部方向へ移動し、最終的にはアークランナ０
９の垂直部分と、これに対向する転流板（３）との間で
アークは消弧される。In such a power switchgear, when the fixed contact (141) and the movable contact (6) are opened, one end of the arc generated between the two contacts is transferred from the movable contact (6) to the commutation plate (3). , the other end is transferred from the fixed contact (141) to the arc run αQ.The other end of the transferred arc moves toward the end on the arc runner 00, and finally reaches the arc runner 0.
The arc is extinguished between the vertical portion of 9 and the commutator plate (3) facing thereto.
ところで、上述した従来の電力開閉装置において、開閉
動作を多数回繰シ返すとアークＰＫよる熱応力のため第
２図に示す矢印方向に転流板（３）が曲る。この現象は
、転流板（３）のグリッド（２）に対向する方の面にの
みアークの一端が存在することから転流板（３）のかか
る片面がアーク熱の影響を強く受けるため、転流板（３
）に熱応力が生じ、図中矢印方向に転流板（３）が変形
すると考えられる。By the way, in the above-mentioned conventional power switchgear, when the opening/closing operation is repeated many times, the commutator plate (3) bends in the direction of the arrow shown in FIG. 2 due to thermal stress caused by the arc PK. This phenomenon occurs because one end of the arc exists only on the side of the commutation plate (3) that faces the grid (2), and this side of the commutation plate (3) is strongly affected by the arc heat. Commutation plate (3
) is thought to occur, causing the commutator plate (3) to deform in the direction of the arrow in the figure.
このため、転流板（３ンとグリッド（２）のｎυ隙以上
に上記′Ｘ形が進むと転流板（３）がグリッド（２）に
接触して、両者間が短絡し、電力開閉装置のしゃ断動作
は不能に々るという欠点があった。For this reason, if the 'X shape' described above advances beyond the nυ gap between the commutation plate (3) and the grid (2), the commutation plate (3) will come into contact with the grid (2), causing a short circuit between the two and switching on and off the power. The drawback was that the device was unable to perform a shutoff operation.
そこで、この発明は熱変形が生じないような転流板の構
造を備えた電力開閉装置を提供することｆ：目的として
いる。Therefore, an object of the present invention is to provide a power switchgear having a commutator plate structure that does not undergo thermal deformation.
以下、この発明の一実施例を図によシ説明する。Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
第４図はこの発明の一実施例として用いる１耐熱性の熱
絶縁物０８１を示し、第５図は第４図の耐熱性の熱絶縁
物０樽を電力開閉装置に組み込んだ状態を示す構成図で
ある、
第５図において、０（至）は耐熱性の熱ＰＩ縁物であり
、転流板（３）とグリッド（２）間のアークボックスに
固定されている。FIG. 4 shows a heat-resistant thermal insulator 081 used as an embodiment of the present invention, and FIG. 5 shows a configuration in which the heat-resistant thermal insulator 0 barrel of FIG. 4 is incorporated into a power switchgear. In FIG. 5, 0 (to) is a heat-resistant thermal PI rim, which is fixed to the arc box between the commutator plate (3) and the grid (2).
かかる構成により、電力１４ト１閉装置を多数回繰り返
し開閉させることによりアーク熱による熱応力が転流板
に生じたとしても、転流板（３）の先端とグリッド（２
）間に耐熱性の熱絶縁物ｏ８１が挿入されているため、
転流板の熱応力に基づく変形は生じないことになる。With this configuration, even if thermal stress due to arc heat is generated in the commutator plate by repeatedly opening and closing the electric power 14 to 1 closing device many times, the tip of the commutator plate (3) and the grid (2)
) Since a heat-resistant thermal insulator o81 is inserted between the
This means that no deformation of the commutator plate due to thermal stress occurs.
なお、上ｄ１２ブイ施例では転流板（２）とクリッド（
２）曲に耐熱性の熱絶縁物（（８）を挿入した例を挙げ
ているが、これに限らず、例えば転流板とグリッド間に
アークボックスと一体化した耐熱性の熱絶縁物を挿入し
てもよい。In addition, in the upper d12 buoy example, the commutation plate (2) and the crid (
2) An example of inserting a heat-resistant thermal insulator ((8) in the curve is given, but this is not limited to this. For example, it is possible to insert a heat-resistant thermal insulator integrated with the arc box between the commutation plate and the grid. May be inserted.
以上で述べたこの発明によれば転流板（３ンとグリッド
（２）間に耐熱性の熱絶縁物Ｃ（８）を挿入することに
より転流板の変形に基づくしゃ断手能を解消することが
で与る。According to the invention described above, by inserting a heat-resistant thermal insulator C (8) between the commutation plate (3) and the grid (2), the interruption function due to the deformation of the commutation plate is eliminated. It's possible.
第１図は従来の電、力開閉装置の一部断面を示す構成図
、第２図・第３図（ａ）は第１図の一部を模写的に示す
斜視図、第３図（ｂ）は第３図（ａ）のＡ−Ａ断面図、
第４図・第５図はこの発明の一実施例を示す構成図であ
る、
図中、（１）はアークポ・フクス、（３）は転流板、（
５）は可動接触子、（６）は固定接点である。
図中、同一符号は同−又は相当部分を示す。
代地人 葛 野 信 −
第１図
＠２図
第３図
（α）
５
（ｂ）Fig. 1 is a configuration diagram showing a partial cross section of a conventional electric/power switchgear, Figs. 2 and 3 (a) are perspective views schematically showing a part of Fig. 1, and Fig. 3 (b). ) is a sectional view taken along line A-A in Figure 3(a);
Figures 4 and 5 are configuration diagrams showing an embodiment of the present invention.
5) is a movable contact, and (6) is a fixed contact. In the figures, the same reference numerals indicate the same or corresponding parts. Nobuo Kuzuno - Figure 1 @ Figure 2 Figure 3 (α) 5 (b)
Claims (1)
の足を転移させるための転流板を少なくとも有する電力
開閉装置において、転流板とグリッドとの間に耐熱性の
熱絶縁物を挿入したことを特徴とする電力開閉装置。In a power switchgear having at least a grid for extinguishing an arc and a commutator plate for transferring the foot of the arc generated at a movable contact, a heat-resistant thermal insulator is inserted between the commutator plate and the grid. A power switchgear characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18880982A JPS5978415A (en) | 1982-10-27 | 1982-10-27 | Power switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18880982A JPS5978415A (en) | 1982-10-27 | 1982-10-27 | Power switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978415A true JPS5978415A (en) | 1984-05-07 |
| JPH05805B2 JPH05805B2 (en) | 1993-01-06 |
Family
ID=16230182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18880982A Granted JPS5978415A (en) | 1982-10-27 | 1982-10-27 | Power switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115614A (en) * | 1986-09-24 | 1987-05-27 | 三菱電機株式会社 | Power switchgear |
-
1982
- 1982-10-27 JP JP18880982A patent/JPS5978415A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62115614A (en) * | 1986-09-24 | 1987-05-27 | 三菱電機株式会社 | Power switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05805B2 (en) | 1993-01-06 |
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