CN2251787Y - Arc-free on-and-off device - Google Patents

Abstract

The utility model relates to an arc-free on-and-off device, which is provided with an insulating base, an on-and-off bridge, binding posts. Two binding posts are arranged on both heads of the insulating base, and the on-and-off bridge is arranged between the two binding posts. One end is hinged with one binding post, and transition high resistance conductors are arranged on one or both sides between the insulating base and the binding posts which are movably contacted with the on-and-off bridge. The binding posts, the insulating base, and the high resistance conductors are in the same plane. Because the on-and-off bridge is additionally with the transition high resistance conductor during the move between the binding posts and the insulating base, a linear conductor, a linear semiconductor, and a linear insulating body can be formed for avoiding the generation of arc sparks and various accidents caused by the arc sparks. The utility model has high safety.

Description

The no arc switching device

The utility model relates to a kind of no arc switching device that belongs to Switch.

By the break-make device of break-make bridge enforcement on/off, because the break-make bridge is at the instantaneous trip power supply, often produce the electric arc flower, easily cause contingency, poor safety performance.

The purpose of this utility model is to overcome the defective of above-mentioned technology, provide a kind of simple in structure, avoid producing electric arc in using and spend safe and reliable no arc switching device.

The utlity model has insulator foot, break-make bridge, binding post, two binding posts are arranged on two of insulator foot, the break-make crane span structure is located between two binding posts, wherein an end and a binding post are hinged, with movable binding post and the one or both sides between the insulator foot that contact of break-make bridge the transition resistive conductor is being set, and binding post, insulator foot and resistive conductor are in same plane.

Further specify the utility model below in conjunction with embodiment and accompanying drawing.

Fig. 1: the front view of present embodiment;

The A-A cutaway view of Fig. 2: Fig. 1.

Present embodiment has insulator foot 3, break-make bridge 1, binding post 2,5, two binding posts 2,5 are separately positioned on two of insulator foot 3, break-make bridge 1 is erected between two binding posts, wherein an end and a binding post 5 are hinged, with break-make bridge 1 movable binding post 2 that contacts and the one or both sides between the insulator foot 3 transition resistive conductor 4 is being set, and binding post 2, insulator foot 3 and resistive conductor 4 are in same plane.During use, move (break-make of power supply) of break-make bridge 1 all passes through the transition of resistive conductor 4, made it to avoid the generation of electric arc flower.

The utility model is simple in structure, owing to set up the transition resistive conductor in break-make bridge the moving between binding post and insulator foot, formed linear conductor, semiconductor and insulator, thereby avoided the generation of electric arc flower, stopped all kinds of accidents that cause because of the electric arc flower, safe and reliable.

Claims (1)

1, a kind of no arc switching device with insulator foot, break-make bridge, binding post, two binding posts are arranged on two of insulator foot, the break-make crane span structure is located between two binding posts, wherein an end and a binding post are hinged, it is characterized in that: be positioned at movable binding post (2) that contacts of break-make bridge (1) and the one or both sides between the insulator foot (3) transition resistive conductor (4) is set, and binding post (2), insulator foot (3) and resistive conductor (4) are in same plane.

Images