JPH0173721U

JPH0173721U -

Info

Publication number: JPH0173721U
Application number: JP1987169348U
Authority: JP
Priority date: 1987-11-05
Filing date: 1987-11-05
Publication date: 1989-05-18

Description

[Brief explanation of the drawing]

第１図ａはこの考案に係る回路しや断器の一実
施例を示す側断面図、第１図ｂは第１図ａの平面
断面図、第２図は、この考案の回路しや断器の他
の実施例を示す側断面図、第３図は一般的な回路
しや断器を示す側断面図、第４図ａは比較的通常
電流が小さい場合の従来の回路しや断器を示す側
断面図、第４図ｂは第４図ａの部分拡大図である
。図において、１は筐体のカバー、２は筐体のベ
ース、３０１ａは第１の固定導体、３０１ｂは限
流抵抗、３０１ｃは第２の固定導体、３０２は固
定接点、４０１は可動導体、４０２は可動接点、
６は消弧装置、６０２は消弧側板、６０３は係合
部である。図中同一符号は同一部分を示す。 Fig. 1a is a side sectional view showing an embodiment of the circuit breaker according to this invention, Fig. 1b is a plan sectional view of Fig. 1a, and Fig. 2 is a side sectional view showing an embodiment of the circuit breaker according to this invention. Figure 3 is a side sectional view showing a general circuit breaker; Figure 4a is a conventional circuit breaker when the normal current is relatively small. FIG. 4b is a partially enlarged view of FIG. 4a. In the figure, 1 is the cover of the housing, 2 is the base of the housing, 301a is the first fixed conductor, 301b is the current limiting resistor, 301c is the second fixed conductor, 302 is the fixed contact, 401 is the movable conductor, 402 is a movable contact,
6 is an arc extinguishing device, 602 is an arc extinguishing side plate, and 603 is an engaging portion. The same reference numerals in the figures indicate the same parts.

補正昭６３．６．２３実用新案登録請求の範囲を次のように補正する
。Amendment June 23, 1983 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) 筐体に固定された第１の固定導体と、前記
第１の固定導体に限流抵抗を介して接続され、一
端部に固定接点を有し、積面に突起を有する第２
の固定導体と、前記固定接点に相対する可動接点を一端部に有
する可動導体と、前記可動接点の前記固定接点からの開離時に発
生するアーク消弧のため前記突起と係合する係合
部を有し、絶縁材からなる消弧側板を具備した消
弧装置と、を備えた回路しや断器。 (2) 消弧側板は、筐体で固定されている実用新
案登録請求の範囲第(1)項記載の回路しや断器。[Claims for Utility Model Registration] (1) A first fixed conductor fixed to a housing, connected to the first fixed conductor via a current limiting resistor, having a fixed contact at one end, The second surface has protrusions.
a fixed conductor; a movable conductor having a movable contact at one end opposite to the fixed contact; and an engaging portion that engages with the protrusion to extinguish an arc that occurs when the movable contact is separated from the fixed contact. An arc extinguishing device comprising an arc extinguishing side plate made of an insulating material, and a circuit breaker comprising: (2) The circuit breaker or circuit breaker according to claim (1) of the utility model registration, in which the arc-extinguishing side plate is fixed to the casing.

Claims

[Claims for Utility Model Registration] (1) A first fixed conductor fixed to the casing, and (the first) a fixed contact connected to the first fixed conductor via a current limiting resistor, and a fixed contact at one end. a second fixed conductor having a protrusion on its surface; a movable conductor having a movable contact at one end opposite to the fixed contact; and an arc extinguishing conductor that occurs when the movable contact is separated from the fixed contact. An arc extinguishing device comprising an arc extinguishing side plate made of an insulating material and having an engaging portion that engages with the protrusion due to the arc shape. (2) The circuit breaker or circuit breaker according to claim (1) of the utility model registration, wherein the arc-extinguishing side plate is fixed to the casing.