JPS6099758U - switch - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第３図は従来の回路しゃ断器のそれぞれ異
なった動作状態を示す断面図、第４図は絶縁物を取りつ
けた従来の接触子構造を示す斜視図、第５図はアークの
性質を調べるための実験に用いる電極の配置構成を示し
、ａは正面図、ｂは側面図、第６図は同実験に用いる電
流の波形図、第７図は絶縁物の張出し幅を変化させたと
きの電流とアーク電圧との関係を示す特性図、第８図は
絶縁物の張出し幅と内圧との関係を示す特性図、第９図
は同実験に用いる他の電極機構を示す斜視図、第１０図
はアークの状態を示す模擬図、第１１図ないし第１５図
はいずれもこの考案の実施例による固定接触子の構成を
示し、ａは平面図、ｂは側面図、Ｃは平面図である。 ３・・・容器、４・・・固定接触子、５・・・固定導体
、６・・・固定接点、７・・・可動接触子、８・・・可
動導体、９・・・可動接点、４１・・・絶縁物。なお、
図中、同一符号は同一または相当部分を示す。 ２７２５１２１１　　投　６５ 第７図 第８図Figures 1 to 3 are cross-sectional views showing different operating states of a conventional circuit breaker, Figure 4 is a perspective view of a conventional contact structure with an insulator attached, and Figure 5 is the nature of the arc. The arrangement of the electrodes used in the experiment to investigate the Figure 8 is a characteristic diagram showing the relationship between the overhanging width of the insulator and internal pressure, Figure 9 is a perspective view showing another electrode mechanism used in the same experiment, Fig. 10 is a mock diagram showing the state of the arc, and Figs. 11 to 15 all show the configuration of a fixed contact according to an embodiment of this invention, where a is a plan view, b is a side view, and C is a plan view. It is. 3... Container, 4... Fixed contact, 5... Fixed conductor, 6... Fixed contact, 7... Movable contact, 8... Movable conductor, 9... Movable contact, 41... Insulator. In addition,
In the drawings, the same reference numerals indicate the same or corresponding parts. 27251211 Throw 65 Figure 7 Figure 8

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）一端に接点を有し開閉動作をする少なくとも一対
の電気接触子と、これらの電気接触子を収納する容器と
を備え、上記一対の電気接触子のうち少なくとも一方に
、上記接点のほぼ全周を囲み導体表面を覆う絶縁物を設
けた開閉器において、上記絶縁物のアークにさらされる
部分が、接点の外表面より２ｒｒｒｔｎ以内の幅を少な
くと、　　も一部に有してなることを特徴とする開閉器
。(1) At least one pair of electrical contacts having a contact point at one end and capable of opening/closing operations, and a container for storing these electrical contacts; In a switch equipped with an insulator that surrounds the entire circumference and covers the surface of the conductor, the part of the insulator exposed to the arc has at least a part of the width that is within 2rrrtn from the outer surface of the contact. A switch featuring: （２）絶縁物は接点付近の導体表面の全部を覆い、この
絶縁物のうち接点の外表面から２ｒｒｒｒｔｒを越える
部分は、アークにさらされないように後退させてなる実
用新案登録請求の範囲第１項記載の開閉器。(2) The insulator covers the entire surface of the conductor near the contact, and the part of the insulator that exceeds 2rrrrtr from the outer surface of the contact is set back so as not to be exposed to arc.Claim 1 of Utility Model Registration: Switch mentioned in section.