Junction box for photovoltaic module

摘要

A junction box includes a cable connecting box, a cover covering the cable connecting box and a cable electrically connecting with the cable connecting box. The cable connecting box including an insulative box and a wire connecting module, the insulative box comprising a plurality of walls extending upwardly and a receiving cavity surround by the walls, the walls including a front wall defining a plurality of mounting holes for the cable passing through. The cover includes a plurality of separating walls extending downwardly from a peripheral of the cover to engage with the walls of the insulative box and a pretending wall being parallel to the separating wall and located in front of the front wall. The adding pretending wall provides a longer distance for the junction box to ensure a safe creepage distance for the user to use the junction box.

主权项

1. A junction box assembly comprising:
a cable connecting box having an insulative box and a wire connecting module, the wire connecting module having an insulative block, a plurality of contacting foils retained in the insulative block and a plurality of diodes connecting with every two neighbor contacting foils: a cover covering the insulative box, the cover having a separating wall extending downwardly from a periphery of the cover and a preventing blade extending downwardly from a rear side of the separating wall, a protrusion formed on one of the preventing blade and the insulative box, and a locking hole formed in the other of said preventing blade and the insulative box to lockably receive said protrusion; a latch portion formed on a front side of the separating wall to cooperate with the protrusion to symmetrically secure the cover to the insulative box; and a cable connecting with the contacting foils.