JPH03118536U

JPH03118536U -

Info

Publication number: JPH03118536U
Application number: JP2778290U
Authority: JP
Priority date: 1990-03-19
Filing date: 1990-03-19
Publication date: 1991-12-06

Description

[Brief explanation of drawings]

第１図ａ，ｂは本考案の一実施例による遮断器
内部配線の配線構造を示す遮断器の平面図と要部
側面図、第２図は本考案において用いられるフレ
キシブルプリント配線の一形状例を示す平面図、
第３図は本考案が対象とする漏電遮断器の全体構
成例を示す平面図、第４図は同じく側面断面図、
第５図ないし第９図は第３図および第４図に示さ
れる漏電遮断器におけるトリツプコイル装置の構
造を示す図であり、第５図は側面図、第６図はト
リツプコイル装置のベース構造を示す斜視図、第
７図はトリツプコイルを除く電気部分の構造を示
す分解斜視図、第８図はトリツプコイル装置の一
部材の斜視図、第９図は平面図、第１０図はテス
ト回路の接点を備えたテスト回路ユニツトの構成
図であり、ａは側面図、ｂは平面図である。１……絶縁ベース、２……感度切換えスイツチ
（定格感度電流切換えスイツチ）、４，５……フ
レキシブルプリント配線、１３……増幅器、３０
……零相変流器、４０……テスト回路ユニツト、
４１……固定接点、４２……可動接点、４６……
手動ハンドル。 Figures 1a and b are a plan view and a side view of main parts of a circuit breaker showing the wiring structure of the circuit breaker internal wiring according to an embodiment of the present invention, and Figure 2 is an example of the shape of flexible printed wiring used in the present invention. A plan view showing
FIG. 3 is a plan view showing an example of the overall configuration of the earth leakage breaker to which the present invention is applied, and FIG. 4 is a side sectional view as well.
5 to 9 are diagrams showing the structure of the trip coil device in the earth leakage circuit breaker shown in FIGS. 3 and 4, FIG. 5 is a side view, and FIG. 6 is a base structure of the trip coil device. 7 is an exploded perspective view showing the structure of the electric part excluding the trip coil, FIG. 8 is a perspective view of a part of the trip coil device, FIG. 9 is a plan view, and FIG. 10 is a test circuit including contacts. 2 is a configuration diagram of a test circuit unit, in which a is a side view and b is a plan view. FIG. 1... Insulation base, 2... Sensitivity switching switch (rated sensitivity current switching switch), 4, 5... Flexible printed wiring, 13... Amplifier, 30
...Zero-phase current transformer, 40 ...Test circuit unit,
41... Fixed contact, 42... Movable contact, 46...
Manual handle.

Claims

[Scope of utility model registration request]

A manual handle for opening/closing is located between the power supply side and the load side, and near the manual handle there is a rated sensitivity current selector switch, a fixed contact of the test circuit connected to two different phases of the main circuit conductor, and a movable contact. A zero-phase current transformer is arranged on the load side remote from the manual handle position, and the zero-phase current transformer amplifies the ground fault current of the main circuit detected on the secondary winding side. In an earth leakage breaker equipped with an amplifier that outputs a tripping current when the switching circuit is ignited, the circuit wiring from the rated sensitivity current changeover switch and the fixed and movable contacts of the test circuit to the zero-phase current transformer and/or the amplifier. An earth leakage breaker characterized in that flexible printed wiring that can be bent freely is provided along an insulating base extending from the vicinity of the manual handle to the vicinity of the zero-phase current transformer or amplifier.