JPS5830256U

JPS5830256U - circuit break

Info

Publication number: JPS5830256U
Application number: JP12580381U
Authority: JP
Inventors: 久常　文之; 伸示山県; 寺地　淳一; 一吉安
Original assignee: 三菱電機株式会社
Priority date: 1981-08-24
Filing date: 1981-08-24
Publication date: 1983-02-26

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 drawings]

第１図Ａは一般的な回路しゃ断器を示す平面図、第１図
Ｂは第１図ＡのＢ−Ｂ線における断面図、第２図は第１
図の回路し弔断器における金属粒子の挙動の模式的説明
図、第３図Ａは従来の回路し。や断器に使用されているある接触子を示す側面図、第３
図Ｂは第３図Ａのものの平面図、第３図Ｃは第３図Ｂの
Ｃ−Ｃ線における断面図、第４図Ａは第３図に示す導体
を用いた場合のアーク発生状態を示す側面図、第４図Ｂ
は第４図Ａのものの正面図、第５図は比較のための他の
導体構造における轡合の金属粒子の挙動の模式的説明図
、第６図Ａはこの考案に至る回路しゃ断器の一実施例を
示す平面図、第６図Ｂは第６図Ａの線Ｂ−Ｂ線における
側面断面図、第７図は第６図Ａ、　Ｂの回路しゃ断器に
おける金属粒子の挙動の模式的説明図、第８図Ａはこの
考案に係る回路しゃ断器の一実施例を示す平面断面図、
第８図Ｂは第８図ＡρＢ−Ｂ線における側面断面図、第
９図は第８図Ａ、　Ｂに示す可動接触子と圧力反射体と
の組立展開図である。２・・・・・・固定接触子、２０１・・・・・・固定導
体、２０２・・・・・・固定接点、３・・・・・・可動
接触子、３０１・・５・・・・可動導体、３０２・・・
・・・可動接点、２０３・・・・・・突起、５・・・・
・・消弧板、６，７・・・・・・圧力反射体。なお、図
中同一符号は同一もしくは相当部分を示す。Figure 1A is a plan view showing a general circuit breaker, Figure 1B is a sectional view taken along the line B-B in Figure 1A, and Figure 2 is a
A schematic explanatory diagram of the behavior of metal particles in the circuit breaker shown in FIG. 3A is a conventional circuit. A side view showing a contact used in a
Figure B is a plan view of the one in Figure 3A, Figure 3C is a sectional view taken along line C-C in Figure 3B, and Figure 4A shows the arc generation state when the conductor shown in Figure 3 is used. Side view shown, Figure 4B
is a front view of the one in Figure 4A, Figure 5 is a schematic explanatory diagram of the behavior of interlocking metal particles in other conductor structures for comparison, and Figure 6A is one of the circuit breakers that led to this invention. A plan view showing the embodiment, FIG. 6B is a side sectional view taken along the line B-B in FIG. 6A, and FIG. 7 is a schematic explanation of the behavior of metal particles in the circuit breaker of FIGS. 6A and B. 8A is a plan sectional view showing an embodiment of the circuit breaker according to this invention,
FIG. 8B is a side cross-sectional view taken along line AρB-B in FIG. 8, and FIG. 9 is an assembled development view of the movable contact and the pressure reflector shown in FIGS. 8A and 8B. 2...Fixed contact, 201...Fixed conductor, 202...Fixed contact, 3...Movable contact, 301...5... Movable conductor, 302...
...Movable contact, 203...Protrusion, 5...
...Arc-extinguishing plate, 6,7...Pressure reflector. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) a movable conductor housed in an insulating casing and having a movable contact at one end; a fixed conductor having at one end a fixed contact facing the movable contact and a protrusion provided near the fixed contact; A pressure reflector made of a high-resistance material is provided behind the movable contact, the fixed contact, and the protrusion so as to cover the other parts while the movable contact, the fixed contact, and the protrusion are respectively protruding, and the protrusion is fixed to the protrusion. A circuit breaker characterized by being installed on the side where the arc flows rather than the contacts.

(2) Registration of a utility model characterized in that an arc-extinguishing plate is provided to extinguish an arc generated when the fixed contact and the movable contact are opened, and the arc-extinguishing plate is made of a magnetic material or a non-magnetic material. A circuit breaker according to claim (1).