Junction box

Abstract

The invention relates to a junction box, comprising a box body, a box cover, a metal connecting component, a cable pressing block, a sealing plug and a wire clamping block, wherein the box body is clamped with the box cover through a fastener. The junction box is characterized by also comprising a cable pressing block which is eudipleural , the middle upper part of the cable pressing block is cracked, and only the lower part is bonded, and therefore, the left and right parts can be folded into different angles; the left and right sections of the cable pressing block are respectively provided with a semicircular arch, and both ends are multi-step clamping ends; the front end of a bottom board of the box body is provided with two pits matched with the semicircular arches of the cable pressing block to form wire holding holes for holding cables; both sides of the front end of the bottom board of the box body are also provided with two clamping blocks matched with the multi-step clamping ends on both ends of the cable pressing block. The junction box has the advantages of simple and practical structure, few parts, convenient assembly and disassembly as well as firm, convenient and reliable cable fixation.

Description

technical field [0001] The invention relates to a junction box in an electrical assembly, in particular to a junction box for connecting solar battery modules. Background technique [0002] As the application of solar power generation becomes more and more common, the junction boxes closely related to its application are constantly being introduced. Solar power generation adopts multiple groups of solar cell modules arranged in a matrix to convert sunlight into electrical energy. Each group of solar cell modules is connected to the junction box. Connection, the junction box is connected with other parts of the solar power generation system. Since the junction box works outdoors for a long time, the rationality and quality of the mechanical structure design are directly related to the efficiency of power transmission. [0003] There have been many technical solutions for the junction box in the prior art, for example, the inventor discloses a junction box that can be combined...

AI Technical Summary

Problems solved by technology

Practical use shows that there is still a need for improvement of this junction box, because the box body lacks a cable fixing device, and the cable is easy to loose or arch in the box body after long-term use, resulting in loosening or falling off between the cable and the metal connector. It directly affects the use effect and safety of the junction box; the structure of the metal connector is too simple, and the cable is connected to the metal connector, which may easily cause poor contact and loose screws.

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