High-sensitivity leakage protection plug

Abstract

The invention discloses a high-sensitivity leakage protection plug. The high-sensitivity leakage protection plug comprises a leakage protection control circuit board, a test button, a contact spring, a push rod, a solenoid coil, an iron core, a brake bridge, a reset part and a dual-point hook, wherein the leakage protection control circuit board is internally provided with a DC power supply unit for supplying power thereto. The structural design is ingenious and reasonable, power is supplied by use of the DC power supply unit, the problem of affected determination due to clutters existing in a conventional AC circuit is effectively solved, the determination of the leakage protection control circuit board is enabled to be more accurate, and the reaction is more rapid; the dual-point hook employs a dual-point cooperation structure, the cooperation is stable, the frictional force is small, release is easy, and smooth and flexible release motion is effectively ensured; the bottom surface of the test button is provided with a carbon film, contact-point contact is better, and the reaction is more sensitive; at the same time, an integrated element RV4145 IC with more sensitive reaction is utilized, and the sensitivity is further improved; and besides, the overall structure is compact and simple, the volume is small, the realization is easy, the safety and reliability are high, and application safety is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of plugs, in particular to a high-sensitivity leakage protection plug. Background technique [0002] Nowadays, there are more and more electrical equipment, and the power plug has become an item that may be encountered everywhere in daily life. In modern society, power plugs are widely used in the electrical industry. There are various power plugs on the market, each of which has a different design concept, and strives to meet the requirements of different users. [0003] Although the plugs currently on the market can roughly meet the requirements of use, the design is not ingenious. Generally, they only have a single function of turning on the power supply. Although there are some plugs with leakage protection functions, their structures are complicated and their response sensitivity is not high. The leakage protection control circuit part of the circuit is an AC circuit. In the AC circuit, there are clutt...

AI Technical Summary

Problems solved by technology

[0003] Although the plugs currently on the market can roughly meet the requirements of use, their designs are not ingenious. Generally, they only have a single function of turning on the power supply. Although there are some plugs with leakage protection functions, their structures are complicated and their response sensitivity is not high. The leakage protection control circuit part of the circuit is an AC circuit. In the AC circuit, there are clutter, interference waves, high-frequency waiting signals that seriously affect the judgment of the integrated circuit, and often cause false jumps, which brings inconvenience to the use.

Moreover, the traditional leakage pop-up mechanism adopts a single-structure buckle structure, which is subject to a large force and is not easy to trip, which affects the working sensitivity.

In addition, the ICs on the leakage protection control circuit are placed horizontally, which leads to the inconsistent movement direction of the IC pins and the welding head of the wave soldering machine, which is prone to the phenomenon of IC pins being tinned or lacking tin, and the welding efficiency is low.

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