A rotary isolating switch contact module provided with an arcing space

Abstract

A rotary isolating switch contact module provided with an arcing space, which includes a mounting case, a moving contact assembly and a static contact assembly, and the moving contact assembly is mounted on the moving contact of the mounting case In the component installation groove, the static contact assembly is installed in the static contact installation groove on the installation shell and is located outside the moving contact assembly. The moving contact assembly can rotate around its own axis, so The moving contact assembly can be engaged with or disengaged from the static contact assembly during its rotation around its own axis, and it is characterized in that: a mounting shell is provided on the outer side of the trajectory of the moving contact assembly rotating around its own axis. There is room for arcing. The contact module adds an arcing space in the installation shell of the rotary isolating switch. The existence of the arcing space provides sufficient space for the arc to be elongated by the magnetic blowing force, thereby effectively increasing the arc voltage. Ultimately, the breaking capacity of the isolating switch is improved.

Description

technical field [0001] The invention belongs to the technical field of switches, and in particular relates to a rotary isolating switch contact module provided with an arc burning space. Background technique [0002] The word switch is interpreted as on and off. It refers to a component that can open a circuit, interrupt the current flow, or cause it to flow to other circuits. The most common switches are human-operated electromechanical devices that have one or more contacts. The "closed" of the contact means that the contact is conducting and allows the current to flow; the "open" of the switch means that the contact is not conducting and forms an open circuit, and the current is not allowed to flow. The development history of the switch has developed from the original switch that requires manual operation to the intelligent switch used in various large-scale electrical control equipment. The function of the switch is more and more, and the safety is getting higher and h...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical defect that the discharge arc generated during the disconnection process of the existing rotary isolating switch used in the high voltage and high current electrical system in the photovoltaic industry is not easy to extinguish, and to provide a The rotary isolating switch contact module of the space, by adding an arcing space in the installation shell of the rotary isolating switch, using electromagnetic force to elongate the arc along the arcing space and then discharge the rotary isolating switch, the existence of the arcing space is When the arc is stretched by the magnetic blowing force, sufficient space is provided, which can effectively increase the arc voltage, and finally improve the breaking capacity of the disconnector, ensuring the safety performance of the spin-on disconnector.

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