JPS6288353U

JPS6288353U -

Info

Publication number: JPS6288353U
Application number: JP18106985U
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図は同上の要部の一部切欠斜視図、第３
図は同上に用いるケーシングの一部切欠斜視図、
第４図は同上に使用する消弧装置の斜視図、第５
図は同上の要部平面図である。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、１９は
切欠溝、２０ろ消弧装置、２１はグリツド板、２
２は支持板、２５は仕切片、３０は固定端子板、
３９は切欠溝である。 FIG. 1 is a partially cutaway side view showing Embodiment 1 of the present invention, FIG. 2 is a partially cutaway perspective view of the main parts of the same, and FIG.
The figure is a partially cutaway perspective view of the casing used in the above.
Figure 4 is a perspective view of the arc extinguishing device used in the above, Figure 5
The figure is a plan view of the main parts same as above. 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, 19 is a notched groove, 20 is an arc extinguisher, 21 is a grid plate, 2
2 is a support plate, 25 is a partition piece, 30 is a fixed terminal board,
39 is a notch groove.

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 with one end connected to the end, curved so as to protrude toward the fixed contact, and whose central axis is orthogonal to the direction connecting the fixed contact and the arc extinguishing device, and provided at a position sandwiching the fixed contact; A fixed terminal board is connected to the other end of both drive coils, and the fixed contact is disposed between both ends of the drive coil in the direction of connecting the fixed contact and the arc extinguisher. The distance between the end face on the fixed contact side and the fixed contact is set larger than the distance between the end face on the fixed terminal plate side of the drive coil and the fixed contact, and the arc extinguisher has grid plates arranged at a distance from each other on the contact side. , a pair of support plates made of a flexible insulating material that support the ends of the grid plate in the direction in which both drive coils are connected, and near the connection portion between the fixed contact plate and the fixed terminal plate and the drive coil. A cutout groove running in the direction connecting the arc extinguisher and the fixed contact is formed corresponding to each drive coil, and a partition piece is provided on the support plate extending toward the fixed contact, and the partition piece connects the fixed contact and the drive coil. A circuit breaker that is inserted into a notch between the