Switching mechanism with automatic tripping function

Abstract

The invention discloses a switching mechanism with an automatic tripping function. The mechanism comprises a bracket, a swinging push rod, a connection swing arm and a lever; through operating the lever, a power source can be switched on and switched off manually, so that the function of an ordinary rocker switch can be realized. When electric leakage, short circuiting, overload and arcing occurs on a switch socket provided with the switching mechanism, a tripping module can push the swinging push rod to swing; one end of the swinging push rod contacts with the tail end of the connection swing arm so as to push the connection swing arm; the connection swing arm is separated from a catching groove under a pushing effect; the connection swing arm moves upwards with the lever under the action of a lever torsional spring, so as to be lifted, and at the same time, drives a main shaft and a moving contact thereon to be lifted, so that the moving contact can be separated from a fixed contact, and therefore, power-off protection can be realized, and security of electricity use can be ensured, and potential safety hazards can be avoided.

Description

technical field [0001] The invention belongs to the technical field of electric fire safety protection for electronic and electrical equipment, and in particular relates to a switch mechanism with an automatic tripping function. Background technique: [0002] Arcing is a natural phenomenon in which an insulator changes from non-conductive to conductive and emits light and heat after being broken down by voltage, commonly known as "arcing". Arc faults are sudden, concealed and random. Fault arc is a common safety hazard in electrical circuits. Fault arc occurs in poor insulation or poor contact of the line, and may also occur in loose wire connections, as well as aging or damaged lines and electrical circuit connections. It is easy to cause fire hazards and other safety hazards, and has a destructive impact on people's production and life. [0003] Fault arcs are generally divided into three types, namely series arcs, parallel arcs and ground arcs. In electrical short-ci...

AI Technical Summary

Problems solved by technology

However, arc fault circuit breakers currently on the market still cannot meet the safety protection requirements of existing circuits.

[0005] Moreover, ordinary rocker switches are only suitable for controlling low-power, low-current electrical appliances, and the protection switch on the socket can only b...

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