JPS5943054U

JPS5943054U - circuit break

Info

Publication number: JPS5943054U
Application number: JP14020382U
Authority: JP
Inventors: 晴久戸田
Original assignee: 三菱電機株式会社
Priority date: 1982-09-14
Filing date: 1982-09-14
Publication date: 1984-03-21

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

[Brief explanation of the drawing]

第１図〜第３図は、いずれも従来の回路しゃ断器を示す
もので、第１図はその回路しゃ断器のＯＮ状態を示す側
断面図、第２図はその操作ハンドル拘束時の回路しゃ断
器のトリップ状態を示す側断面図、第３図はその回路し
ゃ断器のディアイオン消弧装置を示す拡大斜視図である
。第４図〜第６図はいずれもこの考案の一実施例を示す
もので、第４図はその回路しゃ断器のＯＮ状態を示す側
断面図、第５図はその操作ハンドル拘束時の回路しゃ断
器のトリップ状態を示す側断面図、第６図はその回路し
ゃ断器のディアイオン消弧装置を　　　　−示す拡大斜
視図である。図中、１はカバー、３は固定接触子、３ａは固定接点、
４は可動接触子、４ａは可動接点、９は消弧用磁性板、
９ａは切欠、１８は操作ハンドル、２２はディアイオン
消弧装置、２３は導電性隔離部材である。なお、図中、
同一符号は同−又は相当部分を示す。Figures 1 to 3 all show conventional circuit breakers. Figure 1 is a side sectional view showing the circuit breaker in the ON state, and Figure 2 shows the circuit breaker when the operating handle is locked. FIG. 3 is an enlarged perspective view showing the Deion arc extinguishing device of the circuit breaker. Figures 4 to 6 all show one embodiment of this invention. Figure 4 is a side sectional view showing the circuit breaker in the ON state, and Figure 5 shows the circuit breaker when the operating handle is locked. FIG. 6 is an enlarged perspective view showing the di-ion arc extinguishing device of the circuit breaker. In the figure, 1 is a cover, 3 is a fixed contact, 3a is a fixed contact,
4 is a movable contact, 4a is a movable contact, 9 is a magnetic plate for arc extinguishing,
9a is a notch, 18 is an operating handle, 22 is a Diaion arc extinguisher, and 23 is a conductive isolation member. In addition, in the figure,
The same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) An operating handle made of insulating material that is operated from the outside of the casing, a movable contact that moves toward and away from the fixed contact via an opening/closing mechanism, and an arc that occurs between these two liquid contactors. A Dia-Ion arc extinguishing device that extinguishes the arc by arranging a plurality of arc-extinguishing magnetic plates having notches for attracting the arc at predetermined intervals, the Dia-Ion arc extinguishing device on the operation handle side. A conductive isolating member is provided at the end, and the conductive isolating member is the same as the arc-extinguishing magnetic plate and extends beyond the arc generation point of the movable contact at the time of maximum opening. circuit breaker.

(2) The circuit breaker according to claim (1), wherein the conductive isolation member is made of a magnetic material.