JPS59195654U - Breaker arc extinguishing device - Google Patents

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案−実施例のカバーを破断せる平面図、第
２図及び第３図はオン時の縦断面図、第４図は横断面図
、第５図はトリップフリ一時の縦断面図、第６図はオフ
時の縦断面図、第７図はトリップ時若しくはオフ時にお
ける接点ブロックヲ示す縦断面図、第８図はカバーを外
し゛たオフ時の斜視図、第９図はトリップ機構の分解斜
視図、第１０図は接点プロッタ及び引外し素子の分解斜
視図、第１１図ａ、　ｂ、　　ｃ、　ｄ、　　ｅは同上
の動作説明用線図、第１２図は同上のアーク走行板と端
子板との配置構成を示す図、第１３図は同上の分解斜視
図、第１４図ａ、　　ｂは同上の端子板の要部正面図、
要部上面図、第１５図は従来例の構成図、　　　　　゛
第１６図ａ、　　ｂは他の従来例のアーク走行板の正面
図、斜視図、第１７図ａ、　ｂは更に他の従来例の正面
図、斜視図である。 ２６は可動接点、２８は固定接点、２９は端子　　　　
　２板、３１は第１アーク走行板、３２は第２アーク走
行板、４５は消弧グリッド、５５は水平片、５６は垂直
片、８３はアークガイド片を示す。 Ｃ］ ノ ３−５　　　　　第１４図 裟 ８ ８４５９　− （ｂ）Fig. 1 is a plan view of the present invention-embodiment with the cover cut away, Figs. 2 and 3 are longitudinal sectional views when the cover is on, Fig. 4 is a transverse sectional view, and Fig. 5 is a longitudinal sectional view when the cover is not tripped. Figure 6 is a vertical cross-sectional view of the contact block when it is off, Figure 7 is a vertical cross-sectional view showing the contact block when it is tripped or off, Figure 8 is a perspective view of the contact block when it is off with the cover removed, and Figure 9 is a tripped view. Figure 10 is an exploded perspective view of the mechanism, Figure 10 is an exploded perspective view of the contact plotter and tripping element, Figures 11a, b, c, d, and e are diagrams for explaining the operation of the same as above, Figure 12 is the arc travel of the same as above. Figure 13 is an exploded perspective view of the same as the above, Figures 14a and b are front views of the main parts of the terminal board,
15 is a configuration diagram of a conventional example, ゛ Fig. 16 a, b is a front view and perspective view of an arc travel plate of another conventional example, and Fig. 17 a, b is a still another conventional example. They are a front view and a perspective view. 26 is a movable contact, 28 is a fixed contact, 29 is a terminal
2 plates, 31 is a first arc running plate, 32 is a second arc running plate, 45 is an arc extinguishing grid, 55 is a horizontal piece, 56 is a vertical piece, and 83 is an arc guide piece. C] No. 3-5 Figure 14 8 8459 - (b)

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 固定接点が取着されている端子板に一端を接続した第１
のアーク走行板と、一端に前記固定接点に相対する可動
接点が接続された第２のアーク走行板とを形成し、両ア
ーク走行板の他端間に接点の開極時に発生するアークを
消弧させる消弧グリッドを配設したブレーカの消弧装置
において、第１のアーク走行板を水平片とこの水平片よ
り上方へ立設する垂直片とのＬ字形に形成１、前記端子
板の固定接点側の端部と第１のアーク走行板の水平片の
端部とを略水平に接続し、固定接点の近傍より斜め上方
へ突出し先端が垂直片に当接してアークをガイドするア
ークガイド片を端子板より一体的に延設して成ることを
特徴とするブレーカの消弧装置。The first terminal is connected at one end to the terminal board on which the fixed contact is attached.
and a second arc running plate having one end connected to a movable contact opposite to the fixed contact, and extinguishing the arc generated when the contact is opened between the other ends of both arc running plates. In an arc extinguishing device for a breaker provided with an arc extinguishing grid, the first arc traveling plate is formed into an L-shape with a horizontal piece and a vertical piece standing above the horizontal piece. 1. Fixing the terminal plate. An arc guide piece that connects the end of the contact side and the end of the horizontal piece of the first arc traveling plate substantially horizontally, protrudes diagonally upward from the vicinity of the fixed contact, and guides the arc by having its tip abut against the vertical piece. An arc extinguishing device for a breaker, characterized in that the arc extinguishing device is formed by integrally extending from a terminal board.