JPS6282545U

JPS6282545U -

Info

Publication number: JPS6282545U
Application number: JP17439185U
Authority: JP
Priority date: 1985-11-12
Filing date: 1985-11-12
Publication date: 1987-05-26

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例の平面図、第２図
は第１図の線―に沿つた断面図、第３図は第
１図の線―に沿つた断面図、第４図はこの考
案の他の実施例の平面図、第５図は従来の消弧装
置の平面図、第６図は第５図の線―に沿つた
断面図、第７図は第５図の線―に沿つた断面
図である。図において、２，４は開閉接点、６Ａ，６Ｂは
消弧装置、６０１Ａ，６０１Ｂ，６０１Ｃ，６０
１Ｄはそれぞれ略Ｖ字形の切欠き、６０２Ａ，６
０２Ｂ、６０２Ｃ，６０２Ｄはそれぞれグリツド
、βは切口間の間隙である。なお、各図中同一符
号は同一または相当部分を示す。 Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is a sectional view taken along the line - of Fig. 1, Fig. 3 is a sectional view taken along the line - of Fig. 1, and Fig. 4 is a sectional view taken along the line - of Fig. 1. A plan view of another embodiment of this invention, FIG. 5 is a plan view of a conventional arc extinguishing device, FIG. 6 is a sectional view along the line of FIG. 5, and FIG. 7 is a plan view of the conventional arc extinguishing device. FIG. In the figure, 2 and 4 are switching contacts, 6A and 6B are arc extinguishers, and 601A, 601B, 601C, 60
1D is a substantially V-shaped notch, 602A, 6
02B, 602C, and 602D are the grids, and β is the gap between the cuts. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) A circuit breaker consisting of a plurality of grid plates having substantially V-shaped notches facing the switching track of the switching contact and held in a stacked relationship at intervals. In the arc extinguishing device, the distance between the notches of the V-shaped notches of adjacent grids is increased on the side closer to the opening/closing contact, and the shape of the notches is differentiated so that it is minimized at the bottom of the notches. An arc extinguishing device for circuit breakers and circuit breakers. (2) The arc extinguishing device for circuit breakers and circuit breakers as set forth in claim 1 of the utility model registration claim, in which the distance between adjacent V-shaped notches decreases continuously from the side closer to the switching contact toward the bottom. . (3) The arc extinguishing device for a circuit or breaker as set forth in claim 1 of the utility model registration claim, in which the depths of the V-shaped notches of adjacent grids are different.