JPS60149045U

JPS60149045U - circuit break

Info

Publication number: JPS60149045U
Application number: JP3744684U
Authority: JP
Inventors: 高塚　卓雄; 久常　文之; 洋藤井; 伸示山県; 村田　士郎
Original assignee: 三菱電機株式会社
Priority date: 1984-03-14
Filing date: 1984-03-14
Publication date: 1985-10-03

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図ないし第３図は従来の回路しゃ断器のそれぞれ異
なつよ動作状態を示す断面図、第４図は接触子間にアー
クが発生した様子を示す説明図、第、５図は容器内の接
触子間にアークが発生した様子を示す説明図、第６図は
無機質高多孔素材を示す斜視図、第７図は第６図の部分
拡大断面図、第８図はアークを発生゛させたときにおけ
る見掛は気孔率に対する容器内の圧力変化を示す特性図
、第９図はこの考案による回路しゃ断器の一例における
消弧室の分解斜視図、第１０図は光吸収体と消弧板の分
解斜視図、第１１図は光吸収体を組み込んだ消弧室の平
面図である。３・・・容器、４・・・固定電気接触子、５・・・固定
導体、６・・・固定接点、７・・・可動電気接触子、訃
・・可動導体、９・・・可動接点、１３・・・消弧室、
１４・−・消弧板、１４ａ・・・切欠溝、１５・・・側
板、１００・・・光吸収体、１００ａ・・・ひだ。なお
、図中、同一符号は同一または相当部分を示す。Figures 1 to 3 are cross-sectional views showing different operating states of a conventional circuit breaker, Figure 4 is an explanatory diagram showing how an arc is generated between contacts, and Figures 5 and 5 are cross-sectional views of conventional circuit breakers showing different operating states. An explanatory diagram showing how an arc is generated between the contacts, Figure 6 is a perspective view showing the inorganic highly porous material, Figure 7 is a partially enlarged sectional view of Figure 6, and Figure 8 is a diagram showing how an arc is generated. 9 is an exploded perspective view of an arc extinguishing chamber in an example of a circuit breaker according to this invention, and FIG. 10 is a diagram showing a light absorber and an arc extinguishing plate. FIG. 11 is a plan view of an arc extinguishing chamber incorporating a light absorber. 3... Container, 4... Fixed electrical contact, 5... Fixed conductor, 6... Fixed contact, 7... Movable electrical contact, Death... Movable conductor, 9... Movable contact , 13... arc extinguishing room,
14... Arc-extinguishing plate, 14a... Notch groove, 15... Side plate, 100... Light absorber, 100a... Crease. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) At least one pair of electrical contacts consisting of a conductor and a contact fixed thereto, which open and close within the container, and disposed within the container to extinguish the arc that occurs between the contacts. A plurality of arc extinguishing plates and the arc extinguishing plates supporting each side end portion of these arc extinguishing plates constitute an arc extinguishing chamber.
In a circuit breaker having a pair of side plates, 1. a light absorber made of fibers, a mesh, and a composite material of one or more of porous materials with an apparent porosity of 35% or more; A circuit breaker characterized in that it is formed into a bar shape with a plurality of pleats and is placed in the arc extinguishing chamber.

(2) The circuit breaker according to claim 1, wherein a light absorber is fitted into a notch groove formed in each arc-extinguishing plate. .