JPS63118150U

JPS63118150U -

Info

Publication number: JPS63118150U
Application number: JP1045387U
Authority: JP
Priority date: 1987-01-27
Filing date: 1987-01-27
Publication date: 1988-07-30
Anticipated expiration: 2002-01-27
Also published as: JPH082915Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の要部分解斜視図、第
２図は同上の仕切板の斜視図、第３図は同上の配
線用遮断器の一部切欠側面図、第４図は同上の要
部斜視図、第５図は同上の他の実施例を示す要部
分解斜視図、第６図および第７図は同上の動作説
明図である。３は消弧室、１０は接点部、１１は固定接点、
１３は可動接点、１４は可動接触子、１５は駆動
コイル、１６はヨーク、２０は接点板本体、２１
は仕切板、２６は排気板である。 Fig. 1 is an exploded perspective view of essential parts of an embodiment of the present invention, Fig. 2 is a perspective view of the partition plate of the above, Fig. 3 is a partially cutaway side view of the molded circuit breaker of the above, and Fig. 4 is the same as the above. FIG. 5 is an exploded perspective view of a main part showing another embodiment of the same, and FIGS. 6 and 7 are explanatory diagrams of the operation of the same. 3 is an arc extinguishing chamber, 10 is a contact part, 11 is a fixed contact,
13 is a movable contact, 14 is a movable contact, 15 is a drive coil, 16 is a yoke, 20 is a contact plate body, 21
2 is a partition plate, and 26 is an exhaust plate.

Claims

[Scope of utility model registration request]

A molded circuit breaker having an arc extinguishing chamber for extinguishing an arc generated when a fixed contact and a movable contact open, a contact plate body having a fixed contact and a movable contact forming a contact part together with the fixed contact. A movable contact is formed in a long shape in a direction substantially perpendicular to the opening/closing direction of the contact part and is energized in the longitudinal direction, and a movable contact is disposed on both sides of the fixed contact plate sandwiching the fixed contact and is used to close the contact part. A pair of drive coils that apply an electromagnetic force in the direction of opening the contact part to the movable contact in the polar state, and a pair of drive coils made of a magnetic material that serve as a magnetic path for the magnetic flux generated by the drive coil, and are arranged on both sides of the contact part. A movable contact is inserted into a U-shaped yoke, which has a pair of legs whose lower ends are in close contact with the upper surface of the contact plate body, and a bridging piece which magnetically shorts the upper ends of the legs. , a partition plate that prevents the arc from being pushed back and is provided in close contact with one end of the yoke;
It is equipped with an exhaust plate that exhausts arc gas and is provided in close contact with the other end of the yoke, and the arc is generated by the electromagnetic force generated between the magnetic field generated around the movable contact and the arc generated when the contact is opened. An arc extinguishing chamber structure for a molded circuit breaker, characterized in that an arc extinguishing chamber that is energized and extinguishes an arc is formed by a yoke, a partition plate, and an exhaust plate.