Electric lever type leakage preventing socket

Abstract

The invention provides a leakage protection socket, which comprises a transformer component, a trip coil component and a control circuit. The transformer component is used for detecting the current leakage in the alternating current circuit; the trip coil component comprises two fixed permanent magnets and an electromagnet which performs the reciprocating motion between the two permanent magnets; the electromagnet is provided with a lever component which can connect or disconnect the alternating current power supply along with the reciprocating motion of the electromagnet; when the socket is powered on, the control circuit controls the electromagnet of the trip coil component to be attached to one of two permanent magnets, so as to drive the lever component to connect the alternating current power supply; and when the transformer component detects that current leakage occurs in the alternating current circuit, the electromagnet is controlled to be attached to the other permanent magnet, so as to drive the lever component to disconnect the alternating current power supply. The invention has the advantages of small leakage action current, high-speed disconnection, and high reliability and sensitivity, thereby more effectively protecting the security of the personal and the electrical equipment.

Description

technical field [0001] The invention relates to a protective socket for safe use of electricity, in particular to an electric leakage protection socket capable of ensuring the safety of users and electric appliances. Background technique [0002] With the development of electronic technology, various leakage protectors have been widely used to provide safety protection for people's electricity consumption and electrical equipment. However, the tripping mechanisms of various types of leakage protection sockets currently used are electronic or electromagnetic, and they all have disadvantages such as difficulty in tripping after hooking up, slow breaking speed, slow response, and low sensitivity, which cannot meet the needs of people's protection. Personal safety and electrical safety needs. For example, when the human body touches the charged body, the tripping speed of the leakage protection socket should be as fast as possible, but the tripping time of the leakage protectio...

AI Technical Summary

Problems solved by technology

However, the tripping mechanisms of various types of leakage protection sockets currently used are electronic or electromagnetic, and they all have disadvantages such as difficulty in tripping after hooking up, slow breaking speed, slow response, and low sensitivity, which cannot meet the needs of people's protection. The need for personal safety and electrical safety

For example, when the human body touches the charged body, the tripping speed of the leakage protection socket should be as fast as possible, but the tripping time of the leakage protection socket in the prior art is about 100ms

In addition, its leakage action current is about 30mA, exceeding the absolute safety current of the human body by 10mA

When the human body touches the charged body, when the leakage current exceeds 10mA, the person can no longer take the initiative to leave the charged body, but the leakage current value of 30mA (nominal value) for the tripping of the leakage protection socket has not yet been reached, and the leakage protection socket cannot trip.

It can be seen that the leakage protector with a nominal leakage current of 30mA and a tripping speed of 100ms is a leakage protection socket that can only protect electrical appliances but not personal safety.

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