JPS6288352U

JPS6288352U -

Info

Publication number: JPS6288352U
Application number: JP18106885U
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
図は同上の要部平面図、第４図は同上に用いるケ
ーシングの一部切欠斜視図、第５図は同上の要部
の一部切欠斜視図である。８は絶縁リブ、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は消弧装置、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.
FIG. 4 is a partially cutaway perspective view of the casing used in the above, and FIG. 5 is a partially cutaway perspective view of the main parts. 8 is an insulating rib, 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 notch groove, 20 is an arc extinguisher, 30 is a fixed terminal plate, 39 is a notch It's a 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 distance between the fixed contact plate and the fixed terminal plate side and the fixed contact is set near the connection part between the fixed contact plate and the fixed terminal plate and the drive coil. A notched groove running in the direction connecting the fixed contact and the arc extinguishing device is formed, and a pair of insulating ribs protruding from the inner peripheral surface of the casing are interposed between the fixed contact and each drive coil in the notched groove. A circuit breaker consisting of an inserted circuit breaker.