JPS5986617U

JPS5986617U - switch

Info

Publication number: JPS5986617U
Application number: JP18390582U
Authority: JP
Inventors: 久常　文之; 日出夫諏原; 田丸　繁見; 寺地　淳一; 高塚　卓雄
Original assignee: 三菱電機株式会社
Priority date: 1982-12-03
Filing date: 1982-12-03
Publication date: 1984-06-12
Also published as: JPH029480Y2

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図に第３図は従来の回路しゃ断器の断面図で、それ
ぞれ異なった動作状態を示す。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の、見掛
けの気孔′率に対する容器内圧力変化を示す曲線図、第
９図および第１０図はそれぞれこの考案に係る開閉器に
適用した回路しゃ断器の一例における消弧室を示す上面
図および側面図、第１１図は消弧板の１つを示す斜視図
、第１２図は一方の側板と光吸収体を示す斜視図、第１
３図は光吸収体を取り付けて容器内に設置された消弧室
の上面図である。 −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、８・・・・・・可動導
体、９・・・・・・可動接点、１３・・・・・・消弧室
、１４・・・・・・消弧板、１５・・・・・・側板、１
５ａ・・・・・・″貫通孔、１００・・・・・・光吸収
体、１０１・・・・・・弾性部材。なお、図中同一符号
は同一もしくは相当部分を示す。第９図第１′０図　　　　　１５１５ｂ−１００Ｒ銖塁１４ａ１６０１４ａ１１１４ａFIG. 1 and FIG. 3 are cross-sectional views of a conventional circuit breaker, each showing different operating states. Figure 4 is an explanatory diagram showing how an arc occurs between contacts. Figure 5 is an explanatory diagram showing how an arc occurs between contacts in a container. Figure 6 shows an inorganic highly porous material. A perspective view, FIG. 7 is a partial enlarged sectional view of FIG. 6, FIG. 8 is a curve diagram showing the change in pressure inside the container with respect to the apparent porosity when an arc is generated, and FIGS. 9 and 10. 11 is a top view and a side view showing an arc extinguishing chamber in an example of a circuit breaker applied to a switch according to this invention, FIG. 11 is a perspective view showing one of the arc extinguishing plates, and FIG. 12 is one side plate. and a perspective view showing a light absorber, 1st
FIG. 3 is a top view of an arc extinguishing chamber installed in a container with a light absorber attached thereto. -3...Container, 4...Fixed electrical contact, 5...Fixed conductor, 6...Fixed contact,
7... Movable electrical contact, 8... Movable conductor, 9... Movable contact, 13... Arc extinguishing chamber, 14... Arc-extinguishing plate, 15...Side plate, 1
5a...'' through hole, 100... light absorber, 101... elastic member. Note that the same reference numerals in the drawings indicate the same or corresponding parts. 1'0 figure 15 15b-100 R anchorage 14a1601 4a 1 114a

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 a plurality of electrical contacts arranged in the container to extinguish arcs generated between the contacts. An arc-extinguishing chamber is constituted by the arc-extinguishing plates and the arc-extinguishing plates supporting each side end of these arc-extinguishing plates.
A pair of side plates, and a through-hole formed in each of the side plates for attaching a light absorber made of a composite material of one or more of fibers, nets, and porous materials with an apparent porosity of 35% or more. A switch characterized in that the light absorbers are pressed and held against both ends of the arc extinguishing plate by an elastic member interposed between the arc extinguishing chamber and the container.

(2) The above light absorber has an apparent porosity of 40% to 70%,
The switch according to claim 1, which is made of an inorganic highly porous material.

(3) The light absorber is made of an inorganic highly porous material, and this inorganic highly porous material is made of porous ceramics, refractories, glass,
The switch according to claim 1 or 2, which is selected from the group consisting of hardened cement and hardened cement.