Cable fixing structure for photovoltaic junction box

Abstract

The invention discloses a cable fixing structure for a photovoltaic junction box. The structure comprises a box body. A wire pressing block is embedded in the bottom of the box body, the middle portion of the wire pressing block is provided with a U-shaped cable carrying groove whose width is matched with the diameter of the cable, the bottom of the cable carrying groove is connected with a buckle, a corresponding position of the box body is provided with a clamping slot matched with the buckle, and a lower surface of the wire pressing block and a lower surface of the box body are bonded to anupper surface of a photovoltaic backing plate by glue. According to the device of the invention, the wire pressing block is designed at the lower power and is close to the photovoltaic backing plate,when a customer installs, the junction box body and the wire pressing block are bonded together on the photovoltaic backing plate, and so that the possibility of the wire pressing block falling is fundamentally eliminated.

Description

technical field [0001] The invention relates to a cable fixing structure for a photovoltaic junction box. Background technique [0002] In the prior art, the cable pressing block of the photovoltaic junction box presses the cable from top to bottom. This cable fixing method is simple to use and low in cost, but after long-term use, due to external force or vibration Affected by the impact, the looseness between the crimping block and the box body is very easy to occur, and because the crimping block is located above the box body, when the crimping block is loose, there is no external barrier against the movement of the crimping block, so it is extremely It is easy to cause the crimping block to fall off from the top of the box body, thus causing the cable not to be fixed and causing the problem of cable falling off. [0003] Moreover, when the wire crimping block is loose, the strength of the cable fixing will be greatly reduced, causing the cable to become loose, and will ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the cable pressing block of the photovoltaic junction box presses the cable from top to bottom. This cable fixing method is simple to use and low in cost, but after long-term use, due to external force or vibration Affected by the impact, the looseness between the crimping block and the box body is very easy to occur, and because the crimping block is located above the box body, when the crimping block is loose, there is no external barrier against the movement of the crimping block, so it is extremely It is easy to cause the crimping block to fall off from the top of the box, resulting in the cable not being fixed and causing the problem of cable falling off

[0003] Moreover, when the wire crimping block is loose, the strength of the cable fixing will be greatly reduced, causing the cable to become loose, and will affect the connection status between the cable end and the electronic device inside the photovoltaic junction box. Once a short circuit, open circuit or Poor contact may cause safety accidents on transmission lines

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