KR970051614A - Circuit breaker - Google Patents

Abstract

The arc generated between the contacts is quickly transferred to the grid assembly to obtain a circuit breaker which can reduce the consumption of the stationary contact and the deterioration of the insulation around the stationary contact.

A pair of soho side plates 128 extending toward the stationary contact point 112a while holding the grid assembly 124 and a stationary contactor side 128 extending from the fixed position to the grid assembly 124 side A pair of arc suction plates 134 made of a ferromagnetic material and provided outside the arc runner 132 and the small side plate 128 and spaced apart from the fixed contact 112a are provided.

The arc is attracted to the arc attracting plate 134 and rapidly moves from the fixed contact 112a toward the grid aggregate 124. [

Further, it is more effective to arrange the arc drive plate 238 made of a ferromagnetic material so as to hold the stationary contact 112a.

Description

Circuit breaker

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a side sectional view showing an internal structure of a circuit breaker according to an embodiment of the present invention. FIG.

FIG. 2 is a cross-sectional view of the SOHO device section in section II-II in FIG.

FIG. 3 is an exploded perspective view of the SOHO device in FIG. 1; FIG.

FIG. 4 is a side sectional view showing the internal structure of a circuit breaker according to another embodiment of the present invention; FIG.

FIG. 5 is a perspective view showing the arc drive assembly in FIG. 4; FIG.

FIG. 6 shows another embodiment of the present invention, which is a sofa room, in which FIG. 6a is a plan view, and FIG. 6b is a side view.

FIG. 7 is a cross-sectional view of a recessed portion showing a recess of a circuit breaker according to another embodiment of the present invention; FIG.

Fig. 8 is a view showing a small room in Fig. 7, Fig. 7 (a) is a plan view, and Fig. 7 (b) is a side view.

FIG. 9 is a cross-sectional view of a recessed portion showing a recess of a conventional circuit breaker; FIG.

10 is a perspective view showing a main portion of a conventional circuit breaker;

DESCRIPTION OF THE REFERENCE NUMERALS

110a: Base 112: Fixed contact

112a: fixed contact 114: machining contact

114a: movable contact 124: grid assembly

126: Grid plate 128: Loop side plate

130, 230, 330, 430: arc drive assembly

132, 432: fixed contact self cleaner 434: U-shaped suction member

434a: arc suction part 438: C-shaped driving member

438a:

Claims (3)

A grid assembly having a fixed contact fixed to the insulating member, a movable contact having a fixed contact, a movable contact having a movable contact interlocked with the fixed contact, a plurality of grid members stacked and spaced apart from the fixed contact, A pair of opposing small-diameter members which are arranged to extend toward the stationary contact while gripping the grid aggregate, and a conductive material which is extended from the predetermined position to the grid aggregate and is electrically connected to the fixed contact, And a pair of arc suction members made of a ferromagnetic material and disposed at a predetermined distance from the stationary contact in the extending direction of the arc runner on the outside of the facing small arc member. The circuit breaker according to claim 1, wherein the arc runner and the arc suction member are integrally formed of a steel plate, and the arc runner and the arc suction member form a U-shaped cross section in a direction orthogonal to the extending direction of the arc runner. . The circuit breaker according to claim 1, wherein a pair of arc drive members made of a ferromagnetic material are provided in such a manner that the stationary contact is held in a direction orthogonal to the extending direction of the arc runner. ※ Note: It is disclosed by the contents of the first application.