Dot-matrix prefabricated optical cable and manufacture method thereof

Abstract

The present invention provides a dot-matrix prefabricated optical cable and a manufacture method thereof. The dot-matrix prefabricated optical cable comprises a cable; a male terminal assembly located at one end in the cable and configured for connection; a female terminal assembly located at one end, far away from the male terminal assembly, in the cable and configured for matching usage with the male terminal assembly; and a mounting base 4 configured to fix and connect the male terminal assembly with the female terminal assembly. The manufacture method provided by the invention comprises: injection molding, solidification, optical fiber cutting, grinding, waxing and the like. According to the dot-matrix prefabricated optical cable, the defects of cable welding construction on site and the deficiency of the ceramic pin prefabricated connector may be overcome; and moreover, the size is small, the optical fiber intensity is high, the insertion is easy and the insertion loss is low, etc. There is not provided the welding technology in the prefabrication process, therefore the standardized design and the industrialized production may be achieved with obvious economic value and high practicability.

Description

technical field [0001] The invention relates to the field of power distribution protection equipment, in particular to a dot-matrix prefabricated optical cable and a manufacturing method thereof. Background technique [0002] With the acceleration of the construction of intelligent substations, the amount of optical cables is increasing. At present, the substations in the national grid system have basically adopted intelligent substations, and the communication in intelligent substations is transmitted by optical cables. The connection of optical cables is divided into two types: welding and small-core prefabrication , due to the complicated welding process and high professionalism, professional welding personnel, welding machines and testing instruments are required. Disadvantages of welding process: [0003] 1. Splice loss is relatively small; [0004] 2. The overall cost and the average cost of a single core are both high; [0005] 3. Complicated production: [0006] 4...

AI Technical Summary

Problems solved by technology

[0004] 2. The overall cost and the average cost of a single core are both high;

[0005] 3. Complicated production:

[0006] 4. Long time:

[0007] 5. The volume of the fusion splicing box is very large:

[0008] 6. Difficulty in maintenance and repair:

[0010] 1. The number of cores is small: 4-core plug-in prefabricated optical cables can generally guarantee an insertion loss of less than 0.35dB. For more than 4 cores, the difficulty of processing and production increases geometrically, and the insertion loss is also around 1dB;

[0011] 2. The prefabricated connectors with more than 4 cores are larger in size, the outer diameter of 4 cores is about 25mm, while the diameter of 8 cores and 12 cores will reach about 40mm

[0012] 3. Due to the geometric increase in the processing difficulty of metal parts, the qualified rate of finished products has also decreased, resulting in a higher average cost of a single core. Under the premise that the insertion loss meets the requirements, the cost of 8 cores is often 2.2 times that of 4 cores. 12 cores The cost is even more astonishingly high!

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