JPH01117040U

JPH01117040U -

Info

Publication number: JPH01117040U
Application number: JP1267288U
Authority: JP
Priority date: 1988-02-01
Filing date: 1988-02-01
Publication date: 1989-08-08
Anticipated expiration: 2003-02-01
Also published as: JPH0615384Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す部分断面側
面図、第２図は第１図を左から見た図、第３図は
絶縁板の正面図、第４図は金属板半体の正面図、
第５図は絶縁板半体の正面図、第６図は従来のも
のを示す部分断面側面図、第７図は第６図の線
―の断面図である。図において、１は遮断器ケース、２は可動子、
２ａは可動接点、３は固定接点、４は端子板、５
は消弧室、８，８は両側溝、１１はエンドプレー
ト、１１Ａは絶縁板、１１Ｂは絶縁板半体、１１
Ｃは金属板半体、１１ａ，１１ｂ，１１ｃは孔、
１１ａ，１１ｂ，１１ａ，１１ｃは排気孔である
。なお、各図中同一符号は同一または相当部分を
示す。 Fig. 1 is a partially sectional side view showing an embodiment of this invention, Fig. 2 is a view of Fig. 1 seen from the left, Fig. 3 is a front view of the insulating plate, and Fig. 4 is a half of the metal plate. Front view,
FIG. 5 is a front view of a half insulating plate, FIG. 6 is a partially sectional side view showing a conventional one, and FIG. 7 is a sectional view taken along the line - in FIG. 6. In the figure, 1 is a circuit breaker case, 2 is a mover,
2a is a movable contact, 3 is a fixed contact, 4 is a terminal board, 5
is an arc extinguishing chamber, 8, 8 are grooves on both sides, 11 is an end plate, 11A is an insulating plate, 11B is an insulating plate half, 11
C is a metal plate half, 11a, 11b, 11c are holes,
11a, 11b, 11a, and 11c are exhaust holes. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] A circuit breaker case, a movable element located within the circuit breaker case and connected to the opening/closing mechanism, a fixed contact disposed opposite the movable contact of the movable element, and A terminal plate that directly or indirectly holds a fixed contact and has a free end protruding from the end of the circuit breaker case, an arc extinguishing chamber that extinguishes an arc generated between both of the contacts, and an arc extinguishing chamber that extinguishes an arc generated between the two contacts. A circuit breaker comprising: an end plate that has a plurality of exhaust holes for discharging exhaust gas to the outside and that is fitted into grooves on both sides of the circuit breaker case to close an end of the circuit breaker case; an insulating plate having a hole forming approximately half the length of the exhaust hole; and a hole disposed along the side of the insulating plate in contact with the terminal plate and forming approximately half the length of the exhaust hole. an insulating plate half, and a hole having a shape that becomes a size commensurate with the insulating plate when combined with the insulating plate half, and is arranged along the insulating plate and forms approximately half the length of the exhaust hole. 1. A circuit breaker characterized by comprising a metal plate half body having a metal plate half body.