JPS60147139U

JPS60147139U - circuit breaker

Info

Publication number: JPS60147139U
Application number: JP3433884U
Authority: JP
Inventors: 中野　邦光; 弘之大西
Original assignee: 松下電工株式会社
Priority date: 1984-03-10
Filing date: 1984-03-10
Publication date: 1985-09-30

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図は本考案の一実施例に係る回路遮断器の内部構成
を示す正面図、第２図ａは同上の回路遮　　　　−断器
の構成部品を示す分解斜視図、同図すは同上の要部部品
の外観を示す斜視図、第３図は同上の回路遮断器の断面
図、第４図乃至第６図は、それ　　、ぞれ同上の回路遮
断器の接点閉成時、過電流遮断、動作時、および短絡電
流遮断動作時の断面図、第゛、７菌乃至第９−は、それ
ぞれ第１図のＡ−Ａ線、Ｂ−Ｂ線、Ｃ−Ｃ線に沿って切
断した断面図、第１０図および第１１図は、それぞれ同
上の回路遮断器の平面図および端面図である。ｉｏはフレーム、３５はアークホーン、３６はハンドル
、５９は可動接触子、５９ａはＱヨーり、６３は可動接
点、−６４は固定接触子、６５は固定接点、６７はアー
ク走行板、９１は消弧装置、９３はグリッド板、Ｔはト
リップ機構である。−−Fig. 1 is a front view showing the internal structure of a circuit breaker according to an embodiment of the present invention, Fig. 2a is an exploded perspective view showing the components of the same circuit breaker; Figure 3 is a sectional view of the circuit breaker shown above, and Figures 4 to 6 show the overcurrent cutoff when the contacts of the circuit breaker are closed. , cross-sectional views during operation and during short-circuit current interrupting operation, No. 7 to No. 9- are cross sections taken along line A-A, line B-B, and line C-C in Fig. 1, respectively. 10 and 11 are a plan view and an end view of the above circuit breaker, respectively. io is a frame, 35 is an arc horn, 36 is a handle, 59 is a movable contact, 59a is a Q yaw, 63 is a movable contact, -64 is a fixed contact, 65 is a fixed contact, 67 is an arc travel plate, 91 is a In the arc extinguishing device, 93 is a grid plate, and T is a trip mechanism. ---

Claims

[Scope of claim for utility model registration] A movable contact that opens and closes by rotating a handle;
The movable contact has a fixed contact that comes into contact with and releases from the movable contact of the movable contact, and when there is an abnormality in power supply from the power supply to the load, the movable contact is separated from the fixed contact □ and the movable contact and the fixed contact are separated from each other. It has a trip mechanism for releasing the state, and a plurality of arc-extinguishing grid plates held approximately parallel to each other at appropriate intervals, which occurs when the movable contact and the fixed contact are separated. An arc extinguisher for extinguishing an arc, an arc running plate extending from a fixed contact toward the arc extinguisher, and a frame that supports a movable contact and is electrically connected to the movable contact. Among the grid plates of the arc-extinguishing device, which are integrally extended from the frame, the arc-extinguishing plate is opposed to the grid plate located at the end of the counter at an appropriate interval. In a circuit breaker equipped with a horn, an auxiliary yoke made of a magnetic material with a substantially U-shaped cross section is movable from the side opposite to the side on which the movable contact is attached so as to surround the movable contact. A circuit breaker characterized by being fixed to a contactor and a contactor.