JPS6341843U

JPS6341843U -

Info

Publication number: JPS6341843U
Application number: JP13570586U
Authority: JP
Priority date: 1986-09-03
Filing date: 1986-09-03
Publication date: 1988-03-18

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
器の主要部の拡大断面図、第２図は第１図のもの
の消弧室および絶縁隔壁の一部破断斜視図、第３
図は第２図の線―に沿つた拡大断面図、第４
図はこの考案の他の実施例を示す、第３図と同様
の断面図、第５図は従来の回路しや断器の部分断
面側面図、第６図および第７図は第５図の回路し
や断器の消弧室周辺の拡大断面図で従来のものの
問題点を説明するための図である。図において、２は第一の接触子、３は第二の接
触子、４は消弧室、６は外部接続端子、７は第一
の絶縁隔壁、８はアーク、１１は第二の絶縁隔壁
、１１１は孔、１１２は凹所である。なお、各図
中同一符号は同一または相当部を示す。 Fig. 1 is an enlarged sectional view of the main parts of a circuit breaker according to an embodiment of the invention, Fig. 2 is a partially cutaway perspective view of the arc extinguishing chamber and insulating partition wall of Fig.
The figure is an enlarged cross-sectional view taken along the line - in figure 2.
The figures show another embodiment of this invention, a cross-sectional view similar to that in Figure 3, Figure 5 is a partial cross-sectional side view of a conventional circuit breaker, and Figures 6 and 7 are similar to Figure 5. FIG. 2 is an enlarged cross-sectional view of the periphery of the arc extinguishing chamber of the circuit breaker and breaker for explaining the problems of the conventional one. In the figure, 2 is a first contact, 3 is a second contact, 4 is an arc extinguishing chamber, 6 is an external connection terminal, 7 is a first insulating partition, 8 is an arc, and 11 is a second insulating partition. , 111 is a hole, and 112 is a recess. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A first contact connected to the opening/closing mechanism, a second contact opposite thereto, an external connection terminal electrically connected to the second contact, and the first contact and the second contact. an arc extinguishing chamber for extinguishing an arc generated between the arc extinguishing chamber and the external connection terminal; and a first insulating partition wall that is disposed between the arc extinguishing chamber and the external connection terminal and is non-porous at least in a portion facing the arc extinguishing chamber. In the circuit and disconnector equipped with the above, a second insulating partition having a recess or a hole is disposed adjacent to the arc-extinguishing chamber side of the insulating partition and facing the arc-extinguishing chamber. circuit break or break.