JPS5933652U

JPS5933652U - circuit break

Info

Publication number: JPS5933652U
Application number: JP12950682U
Authority: JP
Inventors: 茂松本; 三原　寿信; 高下　偉
Original assignee: 三菱電機株式会社
Priority date: 1982-08-25
Filing date: 1982-08-25
Publication date: 1984-03-01
Also published as: JPH0342606Y2

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図は従来の回路しゃ断器を示す一部破断正面図、第
２図は第１図に郁、ける消弧装置の斜視図、第３図はこ
の考案に係る回路しゃ断器の例を示す一部破断正面図、
第４図は第３図の開閉部と消弧装置を示す一部断面側面
図、第５図は同消弧装置の斜視図、第６図は第３図の押
板の斜視図である。１・・・固定導体、５・・・可動子、７・・・消弧グリ
ッド、７ａ・・・切欠部、１１・・・筐体、２６・・・
消弧枠、２６ｂ・・・前壁部、２６Ｃ・・・後端面、２
７・・・天板、２８・・・消弧装置、２９・・・貫通孔
、３０・・・押板、３０ａ・・・前端面、３２・・・空
間部。なお、図中同一符号は同一もしくは相当部分を示
す。Fig. 1 is a partially cutaway front view showing a conventional circuit breaker, Fig. 2 is a perspective view of an arc extinguishing device similar to Fig. 1, and Fig. 3 shows an example of the circuit breaker according to this invention. Partially cutaway front view,
4 is a partially sectional side view showing the opening/closing part and the arc extinguishing device shown in FIG. 3, FIG. 5 is a perspective view of the arc extinguishing device, and FIG. 6 is a perspective view of the push plate shown in FIG. 3. DESCRIPTION OF SYMBOLS 1... Fixed conductor, 5... Mover, 7... Arc-extinguishing grid, 7a... Notch, 11... Housing, 26...
Arc extinguishing frame, 26b...front wall part, 26C...rear end surface, 2
7... Top plate, 28... Arc extinguishing device, 29... Through hole, 30... Push plate, 30a... Front end surface, 32... Space portion. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A fixed conductor provided in the casing, a spring force opposite to this fixed conductor in the normally open direction is applied to the mover, which forms an opening/closing part with the fixed conductor, and a spring force generated in this opening/closing part. A plurality of arc-extinguishing grids have cutouts on the rear end face in the moving direction of the arc, and are arranged in parallel with each other at a predetermined interval in the vertical direction. an arc-extinguishing frame that surrounds and supports the grid; an insulating top plate provided on the top of the arc-extinguishing frame; In the level position, the arc extinguishing frame is provided with a through hole for gas vent formed in the front wall part and a push plate that presses the movable element to close the opening/closing part, and the front end surface of the push plate is A circuit breaker characterized in that a space portion is formed in close proximity to a rear end surface of the arc extinguishing frame to surround the opening/closing portion when the circuit is closed.