A waterproof method for photovoltaic cable waterproof SR structure

Abstract

The invention discloses a photovoltaic cable waterproof type SR structure and a waterproof method. The structure comprises an outer waterproof sleeve and is characterized in that the outer waterproof sleeve is internally provided with at least one photovoltaic cable branch assembly, the photovoltaic cable branch assembly comprises an inner waterproof casing, one end of the inner waterproof casing is connected with a single photovoltaic cable, and the other end of the inner waterproof casing is connected at least two photovoltaic cables which are arranged in a single layer. Compared with the prior art, the SR structure and the photovoltaic cables perform line outgoing in a 1*2 horizontal mode at the front end of the outer waterproof sleeve, and perform line outgoing in a 1*4 single layer horizontal mode at the rear end of the outer waterproof sleeve; a plastic barrier is designed between the photovoltaic cables, so that gap water inlet caused by abutted cutting of wires is avoided; an intermediate connecting terminal connecting technology is adopted, so that a problem of mold opening and splitting caused by matrix arrangement of the wires is solved; the exposed parts of the photovoltaic cables are isolated by adopting the inner waterproof casings, so that the first time of electrical and waterproof isolation is realized; and the SR structure adopts TPV plastic molding, a second time of electrical and waterproof isolation is performed, and requirements of waterproofness, ultraviolet protection, aging protection and corrosion protection are guaranteed.

Description

technical field [0001] The invention relates to the field of solar photovoltaic technology, in particular to a waterproof method for a photovoltaic cable waterproof SR structure that can improve the production efficiency and service life of photovoltaic products. Background technique [0002] The existing SR (plastic sleeve) structure is designed as a matrix arrangement of wires and multiple molding processes; if one-time molding is used, it will be difficult to separate the grooves at the mold sealing position, the glue cannot be sealed, and the molding cannot be done; it needs to be changed to three-time molding ;The matrix is ​​disassembled into two sets of horizontal outgoing lines to form; relying on the first and second forming outer molds to make the sealing position, the forming steps are many, the cost is high, it is difficult to open the mold for one-time forming, and the production efficiency is relatively low. Low. Contents of the invention [0003] The purpos...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a waterproof method for photovoltaic cable waterproof SR structure, which solves the technical problems of difficult mold opening and parting, many molding steps, low efficiency, and poor molding appearance of the current SR structure.

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