JPH0163045U

JPH0163045U -

Info

Publication number: JPH0163045U
Application number: JP1987158997U
Authority: JP
Priority date: 1987-10-15
Filing date: 1987-10-15
Publication date: 1989-04-24

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による回路しや断
器の部分断面側面図、第２図は第１図の線―
に沿つた部分断面平面図、第３図はこの実施例に
おけるソルダレス端子のカバーと絶縁板の分解斜
視図、第４図はこの考案の他の実施例の主要部の
分解斜視図、第５図は従来の回路しや断器の部分
断面側面図、第６図は第５図の回路しや断器の外
部接続端子の分解斜視図である。図において、２，３は開閉接触子、４は消弧装
置、Ａはアーク、６は外部接続端子、６０４は外
部接続端子６の消弧装置４に対向した側、６０５
，６０６は両側、６０７は頂面、１１，１１Ａは
カバー、１１１はカバー１１の端壁、１１２，１
１３は両側壁、１１４は頂部、１１１Ａは端壁１
１１の消弧装置４に対向した面、１１５は保持溝
、１２は絶縁板である。なお、各図中同一符号は
同一部または相当部を示す。 Fig. 1 is a partial cross-sectional side view of a circuit breaker according to an embodiment of the invention, and Fig. 2 shows the line of Fig. 1.
3 is an exploded perspective view of the cover and insulating plate of the solderless terminal in this embodiment, FIG. 4 is an exploded perspective view of the main parts of another embodiment of this invention, and FIG. 5 6 is a partially sectional side view of a conventional circuit breaker, and FIG. 6 is an exploded perspective view of an external connection terminal of the circuit breaker of FIG. In the figure, 2 and 3 are switching contacts, 4 is an arc extinguisher, A is an arc, 6 is an external connection terminal, 604 is the side of the external connection terminal 6 facing the arc extinguisher 4, 605
, 606 are both sides, 607 is the top surface, 11, 11A is the cover, 111 is the end wall of the cover 11, 112, 1
13 is both side walls, 114 is the top, 111A is the end wall 1
11 is a surface facing the arc extinguishing device 4, 115 is a holding groove, and 12 is an insulating plate. Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) A pair of switching contacts, disposed opposite the switching contacts, and extinguishing an arc that occurs between the switching contacts when the switching contacts are opened and closed. a box-shaped external connection terminal arranged on the opposite side of the switching contact of the arc extinguishing device and connected to one of the switching contacts; and an arc extinguishing device of the external connection terminal made of an insulating material. The cover has an end wall covering opposing sides, both side walls covering left and right sides, and a top covering the top, and the arc gas generated by the arc is discharged to the outside of the breaker case through the periphery of the cover. In a circuit switch or disconnector which is mounted on a panel, an insulating plate that generates an insulating gas when exposed to heat is installed on the surface of the end wall of the cover facing the arc extinguishing device. A circuit breaker characterized by: (2) A retaining groove for retaining both side edges of the insulating plate is provided on the end wall of the cover on the surface facing the arc extinguishing device, and by inserting the insulating plate into the retaining groove, the insulating plate is attached to the surface of the cover. A circuit breaker according to claim 1 of the registered utility model, characterized in that the circuit breaker is adapted to be worn. (3) The circuit breaker or circuit breaker according to claim 1, wherein the insulating plate is made of a resin material.