An arc extinguishing device for a circuit breaker
A technology of arc extinguishing device and circuit breaker, which is applied to circuit breaker parts, circuits, electrical components, etc., which can solve the problems of low current limiting capacity, high temperature arc and easy ablation of the shell, etc., to improve current limiting capacity and improve medium Effects of increased recovery strength and arc resistance
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[0036] Such as figure 2 Shown is a preferred embodiment of the circuit breaker arc extinguishing device of the present invention.
[0037] The arc extinguishing device 1 includes several parallel arc extinguishing grids 2 stacked at a distance from each other and a fixing plate 3 for fixing the arc extinguishing grids 2, the fixing plate 3 is arranged on the arc extinguishing grid The two sides of the sheet 2 are perpendicular to the plane where the arc extinguishing grid sheet 2 is located, and the outer side of the fixed plate 3 is provided with an insulating splint 4, and the insulating splint 4 is located between the circuit breaker casing and the fixed plate 3, so The insulating splint 4 has a hexahedral structure, that is, a plate shape with a certain thickness. During installation, the insulating splint 4 can be fixed by cooperating with the fixing plate 3 or by cooperating with the circuit breaker housing.
[0038] The arc extinguishing grid piece 2 is a ferromagnet...
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