JPH01111419U

JPH01111419U -

Info

Publication number: JPH01111419U
Application number: JP576388U
Authority: JP
Priority date: 1988-01-19
Filing date: 1988-01-19
Publication date: 1989-07-27

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図は両バリヤＡ，Ｂをベースに挿入す
る前の斜視図、第３図は従来のものを示す部分断
面側面図である。図において、１は遮断器ケース、１ａはベース
、１ｂはカバー、１０１は両側挿入溝、２は可動
接触子、３は固定接触子、４は消弧室、６はソル
ダレス端子、７はバリヤＡ、７ａは排気孔のない
部分、７ｂは排気孔のある部分、７０１は排気孔
、８はバリヤＢ、８ａは部分７ａと接する部分、
８ｂは部分７ｂと接する部分、９はアーム、１０
は凸部である。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 perspective view before both barriers A and B are inserted into the base, and Fig. 3 is a partially sectional side view showing a conventional one. be. In the figure, 1 is a circuit breaker case, 1a is a base, 1b is a cover, 101 is an insertion groove on both sides, 2 is a movable contact, 3 is a fixed contact, 4 is an arc extinguishing chamber, 6 is a solderless terminal, and 7 is a barrier A , 7a is a part without an exhaust hole, 7b is a part with an exhaust hole, 701 is an exhaust hole, 8 is a barrier B, 8a is a part in contact with the part 7a,
8b is a part in contact with part 7b, 9 is an arm, 10
is a convex part. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] A circuit breaker case consisting of a base and a cover, a movable contact located within the circuit breaker case and connected to the opening/closing mechanism, and a movable contact located opposite the movable contact and fixed to the base. a fixed contact, a solderless terminal electrically connected to the fixed contact, and an arc extinguishing chamber for extinguishing an arc generated between the two contacts;
a barrier A that is inserted into the insertion grooves on both sides of the base and is disposed between the arc extinguishing chamber and the solderless terminal, and has an exhaust hole that determines the exhaust position of the arc gas so that the arc gas does not directly hit the solderless terminal; The part of the barrier A that is in contact with the part without the exhaust hole is inserted into the insertion groove, and the part of the barrier A that is in contact with the part with the exhaust hole is bent from its midsection by gas pressure to exhaust the arc gas. In a circuit breaker equipped with a barrier B that determines a direction, an arm is provided on the barrier B, and the arm is engaged with a convex portion of the base to prevent the barrier B from coming out of the insertion groove due to gas pressure. A circuit breaker characterized by: