JPS60149044U

JPS60149044U - circuit break

Info

Publication number: JPS60149044U
Application number: JP3744584U
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
なった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、鯖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・・・画定
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、１４５・・・貫通孔、１５
・・・側板、１００・・・光吸収体。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 showing different operating states of a conventional circuit breaker. An explanatory diagram showing how an arc is generated between contacts, Figure 6 is a perspective view showing the inorganic highly porous material, Figure 7 is a partially enlarged cross-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... Defined conductor, 6... Fixed contact, 7... Movable electrical contact, End... Movable conductor, 9...・Movable contact, 13...
Arc-extinguishing chamber, 14... Arc-extinguishing plate, 145... Through hole, 15
...Side plate, 100...Light absorber. 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 an electrical contact disposed within the container to extinguish an arc generated between the contacts. A circuit breaker having a plurality of arc-extinguishing plates, and a pair of side plates supporting each side end portion of these arc-extinguishing plates and forming an arc-extinguishing chamber with the arc-extinguishing plates.
A net and a light absorber made of one or more composite materials of porous materials with an apparent porosity of 35% or more are formed into a U shape, and an arc is directed into the arc extinguishing chamber. A circuit breaker characterized by being arranged so as to wrap around the circuit breaker.

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