JPS5830263U

JPS5830263U - circuit break

Info

Publication number: JPS5830263U
Application number: JP12628181U
Authority: JP
Inventors: 伸示山県; 久常　文之; 寺地　淳一; 一吉安
Original assignee: 三菱電機株式会社
Priority date: 1981-08-25
Filing date: 1981-08-25
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 the drawing]

第１図ａは一般的な回路しゃ断器を示す平面図、第１卯
すは第１図ａの線ｂ−ｂにおける断面図、第。２図は第１図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３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３図すは第３図ａの線ＶＩ
Ｂ−ＶＩＢにおける側断面図、第４図は第３図の回路し
ゃ断器における金属粒子の挙動の模式的説明図、第５図
ａはこの考案による回路しゃ断器の一つの実施例を示す
平断面図、第５図すは第５図ａの線ｂ−ｂにおける側断
面図、第６図ａおよびｂは第５図ａ、　　ｂに示す固定
接触子および可動接触子と圧力反射体との組立展開図、
第７図ａ、　　ｂは他の実施例を示す固定接触子および
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、２０３・・・・・・
突起物、３・・・・・・可動接触子、３０１・・・・・
・可動導体、３０２・・・・・・可動接点、６，７・・
・・・・圧力反射体。なお、図中同一符号は同一または
相当部分を示す。FIG. 1a is a plan view showing a general circuit breaker, and the first volume is a sectional view taken along line bb in FIG. 1a. Figure 2 is a schematic explanatory diagram of the behavior of metal particles in the circuit breaker of Figure 1, Figure 3a is a plan view showing an example of the circuit breaker that led to this invention, and Figure 3a is a diagram illustrating the behavior of metal particles in the circuit breaker of Figure 1. a line VI
A side sectional view of B-VIB, FIG. 4 is a schematic explanatory diagram of the behavior of metal particles in the circuit breaker of FIG. 3, and FIG. Figure 5 is a side sectional view taken along line b--b of Figure 5a, Figures 6a and b are the assembly of the fixed contact, the movable contact, and the pressure reflector shown in Figures 5a and 5b. Developed diagram,
FIGS. 7a and 7b are exploded views of a fixed contact, a movable contact, and a pressure reflector showing another embodiment. 2...Fixed contact, 201...Fixed conductor, 202...Fixed contact, 203...
Projection, 3... Movable contact, 301...
・Movable conductor, 302...Movable contact, 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 fixed conductor housed in an insulating casing and having a fixed contact at one end, a movable conductor having at one end a movable contact opposite to the fixed contact, and at least one of the fixed conductor and the movable conductor. A conductive protrusion made of a high melting point material, and a high resistance material provided so that the fixed contact, the movable contact, and the protrusion respectively protrude and the other parts are covered behind the protrusion. 1. A circuit breaker comprising: a pressure reflector comprising a pressure reflector, wherein the protrusion is provided on a side where an arc flows relative to the fixed contact and the movable contact.

(2) Utility model registration claim No. 1, 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. The circuit breaker described in (1).

(3) Utility model registration claim No. 1, 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 non-magnetic material. (
The circuit breaker described in item 1).

(4) The pressure reflector has a groove emitted from the side surface of the contact and extends in the direction in which the arc travels, and a part of the conductor is exposed in this groove. ).

(5) The circuit breaker according to claim (4), wherein the groove is a communication groove that communicates the contact and the protrusion.