JPS58148824U

JPS58148824U - Arc extinguishing structure of electromagnetic contactor

Info

Publication number: JPS58148824U
Application number: JP4645982U
Authority: JP
Inventors: 政幸吉田
Original assignee: 三菱電機株式会社
Priority date: 1982-03-31
Filing date: 1982-03-31
Publication date: 1983-10-06

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図は従来の電磁接触器における消弧構造を示す要部
半断面図、第２図は第１図の固定接触子とアークランナ
との取付は関係を示す分解斜視図、第３図は本考案に係
る電磁接触器の消弧構造を示す要部半断面図である。　
　　“。各図中同一部材には同一符号を付し、１０はクロスバ−
１１２は可動接点、１６は固定接点、２４はアークラン
ナ、２６はアークボックス、　　　　。２８は補助アークランナ、３０はグリッド、３２は流転
板、３６はストッパ段部である。補正　昭５７．８．１６　− 図面の簡単な説明を次のように補正する。　　−明細書
第８頁第８行の「固定接触子」を「固定接触子片」と補
正する。　　　　・明細書第８頁第１３行の「１２は可動接点」を「１４は
可動接点」と補正する。明細書第８頁第１３行の「１６は固定接点」を「２３は
固定接点」と補正する。Fig. 1 is a half-sectional view of the main part showing the arc extinguishing structure of a conventional electromagnetic contactor, Fig. 2 is an exploded perspective view showing the relationship between the fixed contact and the arc runner in Fig. FIG. 2 is a half-sectional view of a main part showing the arc extinguishing structure of the electromagnetic contactor according to the invention.
". Identical members in each figure are given the same reference numerals, and 10 is a crossbar.
112 is a movable contact, 16 is a fixed contact, 24 is an arc runner, and 26 is an arc box. 28 is an auxiliary arc runner, 30 is a grid, 32 is a flow plate, and 36 is a stopper step. Amendment August 16, 1982 - The brief description of the drawing is amended as follows. - Correct "fixed contact" on page 8, line 8 of the specification to "fixed contact piece." - Correct "12 is a movable contact" on page 8, line 13 of the specification to "14 is a movable contact.""16 is a fixed contact" on page 8, line 13 of the specification is corrected to "23 is a fixed contact."

Claims

[Scope of utility model registration request]

In an electromagnetic contactor that controls opening and closing of an electric circuit by bringing a movable core into and out of contact with the fixed core by excitation of an operating coil mounted on the fixed core, a movable contact disposed on a crossbar mounted on the movable core; Yes, a fixed contact disposed opposite to the movable contact, an arc runner whose base is fixed in contact with the fixed contact and protrudes forward from the front end of the fixed contact, and a nark box that covers both the movable and fixed contacts and the arc runner; an arc extinguishing plate protruding from the top wall of the arc box near the surface of the arc runner, and a stopper step protruding into the displacement locus region of the tip of the arc runner on the arc box wall facing the front end of the arc runner. 1. An arc extinguishing structure for an electromagnetic contactor, characterized in that displacement of the arc runner due to arc heat during contact opening is prevented by engagement with the stopper step.