JPS64244U

JPS64244U -

Info

Publication number: JPS64244U
Application number: JP9468587U
Authority: JP
Priority date: 1987-06-22
Filing date: 1987-06-22
Publication date: 1989-01-05

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による回路しや断
器の可調整電磁引き外し装置を示す側面図、第２
図は第１図に示される装置におけるギヤツプと吸
引力との関係を示すグラフ、第３図はこの考案の
他の実施例を示す側面図、第４図は従来の可調整
電磁引き外し装置を示す側面図、第５図は従来装
置におけるギヤツプと吸引力との関係を示すグラ
フである。図において、３はカム、６は導体、７は固定鉄
心、８は可動鉄心、１０はプレートである。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 side view showing an adjustable electromagnetic trip device for circuit breakers according to one embodiment of the invention;
The figure is a graph showing the relationship between the gap and the suction force in the device shown in Fig. 1, Fig. 3 is a side view showing another embodiment of this invention, and Fig. 4 is a graph showing a conventional adjustable electromagnetic trip device. The side view shown in FIG. 5 is a graph showing the relationship between the gap and suction force in the conventional device. In the figure, 3 is a cam, 6 is a conductor, 7 is a fixed core, 8 is a movable core, and 10 is a plate. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A conductor that constitutes a current path, a fixed iron core installed in the vicinity of this conductor, and a circuit installed opposite to this fixed iron core and operated to be attracted to this fixed iron core to break or break the circuit. a movable iron core that operates to move the iron core, and a displacement mechanism that displaces the movable iron core, and a part of the conductor is opposed to a surface of the movable iron core opposite to a surface facing the fixed iron core to generate a reverse attraction force. 1. An adjustable electromagnetic tripping device for a circuit breaker, characterized in that a magnetic material is attached to the reverse attraction force generating portion.