JPS59181554U

JPS59181554U - circuit break

Info

Publication number: JPS59181554U
Application number: JP7633683U
Authority: JP
Inventors: 伸示山県; 洋藤井; 細貝　節夫; 久常　文之; 田丸　繁見; 高塚　卓雄
Original assignee: 三菱電機株式会社
Priority date: 1983-05-20
Filing date: 1983-05-20
Publication date: 1984-12-04

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図はこの考案の一実施例による回路しゃ断器の要部
を示す斜視図、第２図は同実施例の組立て斜視図、第３
図は同実施例の説明図、第４図はこの考案の他の実施例
を示す側断面図である。１・・・固定導体、２・・・固定接点、３・・・可動接
点、４・・・可動導体、５・・・消弧室、６・・・支持
板、７・・・消弧板、８・・・熱吸収体、８ａ・・・通
気孔、２０・・・固定電気接触子、３０・・・可動電気
接触子、４０・・・筐体。Fig. 1 is a perspective view showing the main parts of a circuit breaker according to an embodiment of the invention, Fig. 2 is an assembled perspective view of the same embodiment, and Fig. 3 is an assembled perspective view of the same embodiment.
The figure is an explanatory view of the same embodiment, and FIG. 4 is a side sectional view showing another embodiment of this invention. DESCRIPTION OF SYMBOLS 1... Fixed conductor, 2... Fixed contact, 3... Movable contact, 4... Movable conductor, 5... Arc extinguishing chamber, 6... Support plate, 7... Arc extinguishing plate , 8... Heat absorber, 8a... Ventilation hole, 20... Fixed electrical contact, 30... Movable electrical contact, 40... Housing.

Claims

[Scope of utility model registration request]

At least one pair of electrical contacts that are composed of a conductor and a contact fixed thereto and that open and close, and a plurality of arc extinguishing plates that emit arcs generated when the electrical contacts open and close;
A heat absorbing body is installed above the arc extinguishing plate or between the arc extinguishing plate and an outlet for discharging arc gas, and the heat absorbing body is provided with ventilation holes cut into a metal plate and punched out in a chevron shape. A circuit breaker characterized by forming a plurality of.