JPS5830257U

JPS5830257U - circuit break

Info

Publication number: JPS5830257U
Application number: JP12627581U
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
Also published as: JPH0113315Y2

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図
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め一実施例
を示す平面図、第３図すは第３図ａの線ＶＩＢ−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に示す固定接触手およ
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・・団・固定導体、
　２０２・・・・・・固定接点、２０３・・・・・・突
起物、３・・曲回動接触子、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。Figure 1a is a plan view showing a general circuit breaker, Figure 1 is a sectional view taken along 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 the figure, FIG. 3a is a plan view showing an embodiment of the circuit breaker that led to this invention, and FIG. VIB
4 is a schematic explanatory diagram of the behavior of metal particles in the circuit breaker of FIG. 3, and FIG. 5a is a plan sectional view showing one embodiment of the circuit breaker according to this invention.
Figure 5 is a side sectional view taken along line bb of Figure 5a, Figure 6
Figures a and b are exploded views of the fixed contact hand, movable contact and pressure reflector shown in Figures 5a and b, and Figures 7a and 7b.
b is an assembled development view of a fixed contact, a movable contact, and a pressure reflector showing another embodiment. 2... Fixed contact, 201... Group fixed conductor,
202... Fixed contact, 203... Protrusion, 3... Curved rotating 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 its lower 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 having a protruding surface area larger than a protruding surface area of the contact, and the fixed contact, the movable contact, and the protrusion are respectively protruded and are provided so as to cover the other parts behind them. and a pressure reflector made of high resistance material.
A circuit breaker characterized in that the protrusion is provided on a side where an arc flows rather than 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) A utility model registration claim 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 paragraph (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. )Circuit breaker as described in paragraph

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