JPS6288350U

JPS6288350U -

Info

Publication number: JPS6288350U
Application number: JP18106685U
Authority: JP
Priority date: 1985-11-25
Filing date: 1985-11-25
Publication date: 1987-06-05

Description

[Brief explanation of the drawing]

第１図は本考案の実施例１を示す一部切欠側面
図、第２図は同上の要部を示す側面図、第３図は
同上の要部を示す斜視図、第４図は同上の要部を
示す一部切欠斜視図、第５図は本考案の実施例２
の要部を示す分解斜視図、第６図は本考案の実施
例３の要部を示す一部切欠側面図、第７図は従来
例を示す平面図、第８図は従来例を示す一部切欠
側面図である。１０は接点、１１は固定接触板、１２は固定接
点、１３は可動接点、１６は駆動コイル、１８は
保持片、２０は消弧装置、３０は固定端子板、３
８は保持片である。 Fig. 1 is a partially cutaway side view showing Embodiment 1 of the present invention, Fig. 2 is a side view showing the main parts of the same, Fig. 3 is a perspective view showing the main parts of the same, and Fig. 4 is a side view showing the main parts of the same. A partially cutaway perspective view showing the main parts, FIG. 5 is a second embodiment of the present invention.
6 is a partially cutaway side view showing the main parts of Embodiment 3 of the present invention, FIG. 7 is a plan view showing the conventional example, and FIG. 8 is an exploded perspective view showing the conventional example. It is a partial notch side view. 10 is a contact, 11 is a fixed contact plate, 12 is a fixed contact, 13 is a movable contact, 16 is a drive coil, 18 is a holding piece, 20 is an arc extinguisher, 30 is a fixed terminal plate, 3
8 is a holding piece.

Claims

[Scope of utility model registration request]

A circuit breaker in which a contact consisting of a movable contact and a fixed contact is inserted on the electrical circuit between the power supply and the load, and the contact opens when an overcurrent passes through the electrical circuit, and the fixed contact is provided on the surface. a fixed contact plate, an arc extinguishing device disposed on the surface side of the fixed contact plate at one end of the fixed contact plate at a different position from the fixed contact for extinguishing an introduced arc; A pair of drive coils, one end of which is connected to the other end, is curved so as to protrude toward the fixed contact, and the central axis is perpendicular to the direction connecting the fixed contact and the arc extinguishing device, and is provided at a position sandwiching the fixed contact. , and a fixed terminal plate connected to the other ends of both drive coils, important points on the outer periphery of the arc extinguishing device are surrounded by a support plate formed of an insulating material, and a fixed terminal plate connected to the other end of the arc extinguishing device is surrounded by a support plate made of an insulating material. A holder whose end face abuts the end face of the drive coil on the fixed terminal plate side via a support plate, and the other end face of the arc extinguisher protrudes toward the fixed contact side on either the fixed contact plate or the fixed contact plate. A circuit breaker in which an arc extinguishing device is held between a drive coil and a holding piece so as to be in contact with the piece through a support plate.