Novel smart testing junction box

Abstract

The invention provides a novel smart testing junction box. The junction box comprises an insulating base and multiple groups of wiring terminals, wherein each group of wiring terminals comprise a wiring conductor arranged in the insulating base, a wiring jack formed in the end part of the wiring conductor, a plurality of crimping screws and a short contact tag which is detachably connected betweenthe two crimping screws; a wiring through hole which is used for connecting the end part of a conductor and exposed from the wiring jack is formed in the insulating base; the short contact tag is positioned outside the insulating base; the end parts of the crimping screws are in threaded connection with the wiring conductor and electrically conducted; each group of wiring terminal further comprises a connecting conductor arranged on the joint of the crimping screws and the short contact tag, the end, far from the wiring conductor, of the connecting conductor extends out from the insulating base, and is contacted with the short contact tag; the other end of the connecting conductor is contacted with the wiring conductor; and the connecting conductor and the short contact tag are locked bythe crimping screws to ensure the contact stability between the wiring conductor and the short contact tag, and the circuit break phenomenon between the wiring conductor and the short contact tag canbe effectively avoided.

Description

technical field [0001] The invention relates to electrical equipment, in particular to a novel intelligent test junction box. Background technique [0002] At present, a junction box is usually used when testing an electric energy meter, for example, a junction box for electric energy meter testing disclosed in Chinese Utility Model Patent Application No. 201320838072.4. Generally speaking, the junction box has an insulating shell and multiple sets of terminal blocks installed in the insulating shell. The multiple sets of terminal blocks include voltage terminal blocks and current terminal blocks. The conductor in the conductor, a plurality of conductive screws connected to the conductor and electrically conductive, a test head connected to the conductor and electrically conductive, and a shorting piece detachably connected between the two conductive screws, the end of the conductor is opened There are wiring jacks, the wiring jacks are used to connect with external equipme...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the electrical conduction between the shorting piece and the conductor is completely attached to the conductive screw, that is, the conductor is only connected to the conductive screw and conducts electricity, and the shorting piece is only connected to the conductive screw and electrically conductive. The conductor and the shorting piece are separated by an insulating shell, and the two are electrically connected through a conductive screw. This structure causes the electrical connection between the shorting piece and the conductor to be unstable, making the connection between the shorting piece and the conductor unstable. It is easy to break the circuit, which will lead to inaccurate test results and misjudgment of the performance of the energy meter, etc.

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