RCD module with reverse line protection function

Abstract

The invention belongs to the technical field of leakage protection, and particularly relates to an RCD module. The RCD module with a reverse line protection function includes a static contact plate, acontact piece and a connecting rod. The upper part of the contact piece is fixed on a casing; the connecting rod is rotatably disposed under the contact piece; and the lower end portion of the contact piece is connected with an electric contact; and the connecting rod has a protruding end. When the RCD module is closed, the connecting rod rotates counterclockwise, the protruding end of the connecting rod abuts the contact piece and bends the contact piece upward, and the electric contact on the lower end portion of the contact piece contacts the static contact plate. The circuit connection manner of the invention can reduce an effective internal resistance value of an entire loop of the RCD module, effectively reduce the temperature rise and the power consumption in a normal working environment, and can ensure the thermal stability of the circuit so that the circuit will not be blown due to extremely high voltage.

Description

technical field [0001] The invention belongs to the technical field of leakage protection, and in particular relates to an RCD module. Background technique [0002] The common residual current protective devices (hereinafter referred to as RCD) used in household and similar places on the market at present, the electrical mechanical circuit (secondary circuit) of the test jump module of the module part is mainly switched on and off through the elastic contact piece (copper Sheet / spring) to achieve separation and closing, which is more common in products with positive incoming lines. With the ever-changing use of products, especially in the new energy industry, it is required that the products should have the function of reversed wires to achieve the safety, stability and clarity of the internal wiring of the equipment, while saving the use of cables and wires. [0003] Most of the products on the market do not fully support the backward line, because the structure of the mod...

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Problems solved by technology

[0003] Most of the products on the market do not fully support the backward line, because the structure of the module limits the function of the product

The other is to support the reverse incoming line, but during the implementation of the new national standard (GB / T 16917.1-2014) (especially for three-phase power-taking products), when the circuit of the test module is on and off, a high voltage is generated in the circuit board, As a result, the elastic contact piece (copper piece / spring) heats up and melts during the process of opening and closing, resulting in poor contact and resulting in failure of product performance

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