JPH0192029U

JPH0192029U -

Info

Publication number: JPH0192029U
Application number: JP18755287U
Authority: JP
Priority date: 1987-12-09
Filing date: 1987-12-09
Publication date: 1989-06-16
Anticipated expiration: 2002-12-09
Also published as: JPH064509Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例を回路しや断
器に適用した一部破断状態の側面図、第２図は接
点装置の斜視図、第３図はその分解斜視図、第４
図は接点開極初期の状態を示す説明図、第５図は
接点開極状態を示す説明図、第６図は仕切り板の
説明図、第７図は第２の実施例の仕切り板の斜視
図、第８図は第３の実施例の仕切り板の斜視図で
ある。１…可動接触子、２…固定接点、３…消弧装置
、４…仕切り板、５…可動接点。 Fig. 1 is a partially cutaway side view of the first embodiment of this invention applied to a circuit breaker; Fig. 2 is a perspective view of the contact device; Fig. 3 is an exploded perspective view thereof;
The figure is an explanatory diagram showing the initial state of the contacts being opened, Fig. 5 is an explanatory diagram showing the contact opening state, Fig. 6 is an explanatory diagram of the partition plate, and Fig. 7 is a perspective view of the partition plate of the second embodiment. 8 are perspective views of the partition plate of the third embodiment. DESCRIPTION OF SYMBOLS 1... Movable contact, 2... Fixed contact, 3... Arc extinguisher, 4... Partition plate, 5... Movable contact.

Claims

[Claims for Utility Model Registration] (1) A movable contact having a movable contact, a fixed contact opposite to the movable contact, and a movable contact disposed near the movable contact and the fixed contact between the fixed contact and the movable contact. In the contact device equipped with an arc extinguishing device that extinguishes an arc generated in A contact device characterized by having an inverted U-shaped flat plate-shaped partition plate made of a magnetic material that generates an electromagnetic force in a direction. (2) The arc extinguishing device includes a pair of drive coils that are arranged on both sides of the fixed contact and generate an electromagnetic force in the opening direction in the movable contact and extend the arc when an abnormal current occurs, and a pair of drive coils that extend the arc. a yoke bent in an inverted U shape so as to straddle the coil from the side opposite to the fixed contact to form a magnetic path for the drive coil and to extend the arc; and an insulator coated on the inside of the yoke. A contact device according to claim (1) of the utility model registration claim consisting of: (3) The partition plate is formed by folding a plurality of times, and the distance between each inner side becomes gradually narrower as the distance from the movable contact increases.
Contact device described in ).