JPS5830254U

JPS5830254U - circuit break

Info

Publication number: JPS5830254U
Application number: JP1981125801U
Authority: JP
Inventors: 久常　文之; 伸示山県; 寺地　淳一; 一吉安
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1981-08-24
Filing date: 1981-08-24
Publication date: 1983-02-26
Also published as: EP0074529A1; ZA826005B

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図は従来の回路しゃ断器の閉成状態を示す側面図、
第２図はくの開成状態を示す側面図、第３図はアークの
挙動を示し、Ａは側面図、ＢはＡのＨＢ−ＨＢ力方向ら
見た矢視図、第４図は巳の考案の一実施例による回路し
ゃ断器を示し、Ａは縦断面図、Ｂは消弧板の平面図、第
５図は消弧板が形成する包絡空間を示す斜視図、第６図
は固定接触子の要部を示す斜視図、第７図は圧力反射体
の変形例を示す斜視図、第８図は圧力反射体の作用を示
し、Ａは縦断面図、ＢはＡの可動接触子および消弧板の
底面図、第９図はこの考案の他の実施例を示す縦断面図
、第１０図はさらに他の実施例を示し、Ａは可動接触子
の底面図、Ｂは固定接触子の平面図である。１．４・・・・・・導体、２．３・・・・・・接点・、
６・・・・・・アーク、７・・・・・・圧力反射体、７
ａ・・・・・・端縁、１１゜１２・・・・・・１対の電
気接触子、５１．　５２．　５３・・・・・・消弧板、
Ｋ・・・・・・包絡空間、Ｍ・・・・・・アーク空間、
ｍ・・・・・・截頭円錐、ｎ・・・・・・法線。なお、
図中、同一符号は同一または相当部分を示す。第８図Figure 1 is a side view showing the closed state of a conventional circuit breaker;
Figure 2 is a side view showing the open state of the foil, Figure 3 is the behavior of the arc, A is the side view, B is the arrow view as seen from the HB-HB force direction of A, and Figure 4 is the snake. A circuit breaker according to an embodiment of the invention is shown, in which A is a longitudinal cross-sectional view, B is a plan view of the arc-extinguishing plate, FIG. 5 is a perspective view showing the envelope space formed by the arc-extinguishing plate, and FIG. 6 is a fixed contact. FIG. 7 is a perspective view showing a modified example of the pressure reflector, FIG. 8 shows the action of the pressure reflector, A is a vertical sectional view, B is a movable contact of A and A bottom view of the arc-extinguishing plate, FIG. 9 is a vertical sectional view showing another embodiment of this invention, and FIG. 10 shows still another embodiment, A is a bottom view of the movable contact, and B is a fixed contact. FIG. 1.4...Conductor, 2.3...Contact...
6... Arc, 7... Pressure reflector, 7
a...Edge, 11°12...Pair of electrical contacts, 51. 52. 53... arc extinguishing board,
K... Envelope space, M... Arc space,
m: truncated cone, n: normal line. In addition,
In the drawings, the same reference numerals indicate the same or corresponding parts. Figure 8

Claims

[Scope of utility model registration request]

For a pair of electrical contacts consisting of a conductor and a contact fixed to the conductor, a pressure reflector made of a high resistance material with a higher resistivity than the conductor is placed on the conductor so as to cover the conductor around the contact. In addition, a plurality of arc-extinguishing plates are provided to extinguish the arc generated when the above-mentioned contacts are opened, and the closed curved surface formed by the edge of the pressure reflector around each of the above-mentioned contacts is attached to the top surface. When a pair of truncated cones having a conical surface making an angle of 35° with the normal to the outer surface of the pressure reflector in the above-mentioned periphery is set, when both liquid contactors are open, the pair of truncated cones A circuit breaker configured such that a space formed by the overlapping portion of the arc-extinguishing plates includes at least a part of an envelope space formed by connecting the outer edges of the plurality of arc-extinguishing plates.