A waterproof combined structure and assembly method for excessive current

Abstract

The present invention is a waterproof combination structure and assembly method for excessive current, including a board end connection combination and a wire end connection combination. The board end connection combination consists of plastic mold parts and Composed of wiring copper bars, the wire end wiring combination is composed of wires that pass through nuts, waterproof rings, insulators, junction boxes, waterproof strips and R-shaped terminals in sequence, wherein the wiring copper bars are molded with plastic The pieces are clamped together, and the R-shaped terminal is locked together with the wiring copper bar. Adopting the technical scheme of the invention can meet the requirements of IP65 protection level and overcurrent requirements of over 100A, and the cost is greatly reduced, the structural space volume is saved, and the assembly and disassembly are convenient.

Description

technical field [0001] The invention mainly belongs to the field of photovoltaic energy storage inverters, and specifically relates to a waterproof composite structure and an assembly method for excessive current. Background technique [0002] In the current industry, it is almost difficult to find connector terminals that can meet IP65 and over-current (above 100A). Very little is used and it is too expensive to produce. In order to find a plug terminal that meets this condition, the terminals in the domestic and foreign markets are either too expensive, too bulky, or unable to meet the requirements of IP65. Waterproof combination structure for excessive current to meet product design requirements. [0003] The following is a detailed description of the combined structure and implementation of the existing plug-in terminals: [0004] The structure of this class is: [0005] 1. Wire end wiring combination: After passing the wire 4 through the nut 5, waterproof ring 6, an...

AI Technical Summary

Problems solved by technology

[0009] 1. In the case of limited design space of the whole machine, since the disassembly and assembly of the terminal is to separate the wire end and the board end by rotating the thread, it is extremely inconvenient for customers to disassemble and assemble (rotate the locking nut 17 hand and another terminal interference)

[0010] 2. Since the conductive copper core 16 of the terminal is produced by machining, the internal buckle locking method is complicated, and there are too many plastic mold parts, resulting in high product cost

[0011] 3. Since the conductive copper core 16 used in this method is too thin, M6 nuts are used to connect with the wiring copper bar 3, so the overcurrent capacity can only meet about 80 amperes

Unable to meet design requirements

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