Solar photovoltaic junction box component

Abstract

The invention discloses a solar photovoltaic junction box component, comprising a box body, a box cover and external cables. An electric connector is arranged in the box body and at least comprises sheet metals which are simultaneously connected with the positive electrode and the negative electrode of a solar-cell panel and connectors which form electric connection with the external cables. Gel potting cavities for injecting gels are formed between access positions of the external cables in the box body and the connectors. Compared with the prior art, the solar photovoltaic junction box component has the advantages that part of the external cables in the box body is in sealing connection with the box body by using the gels, thus being capable of reliably preventing water from entering into the box body through gaps between the box body and the external cables. In addition, first coating forming structures are formed at the access positions between the external wall of the box body and the external cables; second coating forming structures are formed at electric connection positions between bare wires of the external cables in the box body and the connectors; and the first coatingforming structure and the second coating forming structure can be used to reliably fix the external cables on the box body, and have a water-proof function.

Description

technical field [0001] The invention relates to a solar photovoltaic junction box assembly, in particular to an effective waterproof solar photovoltaic junction box assembly. Background technique [0002] In the field of solar photovoltaic junction box technology, there are two important problems: one is to prevent external water from penetrating into the junction box, because this will cause short circuit problems; the other is to prevent the connection of cables and electrical connectors in the junction box from loosening , as this would cause a circuit breaker problem. [0003] In order to solve the above two technical problems, in the prior art, the interior of the junction box is generally sealed with glue to achieve waterproofing, and at the same time, screws and other fasteners are used to fix the cables on the outside of the junction box. Prevents the cable from being pulled relative to the box body. [0004] For this traditional junction box, since special fixing ...

AI Technical Summary

Problems solved by technology

[0002] In the field of solar photovoltaic junction box technology, there are two important problems: one is to prevent external water from penetrating into the junction box, because this will cause short circuit problems; the other is to prevent the connection of cables and electrical connectors in the junction box from loosening , as this would cause a circuit breaker problem

[0004] For this traditional junction box, the structure is complicated and the assembly is difficult due to the need for special fixing parts

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