Miniature high-strength flexible optical cable

Abstract

The invention relates to a miniature high-strength flexible optical cable. The miniature high-strength flexible optical cable includes a cable core and an outer sheath, and is characterized in that the cable core is wrapped in an ultrathin inner sheath, a nonmetal outer reinforced layer is laid outside the ultrathin inner sheath, and the outer sheath wraps the nonmetal outer reinforced layer. The miniature high-strength flexible optical cable is large in number of cores, thin in outer diameter, light in weight and excellent in bending performance, saves wiring space resources, and reduces construction cost; the optical cable has good weather resistance and mechanical property, and satisfies using requirements of multiple fields such as pipelines, indoor, short-distance overhead, jumper wire manufacture, machine rooms, medical treatment, wind power industry and so on; and the optical cable is of an all-dry type structure, all units are arranged reasonably, and the optical cable adapts to requirements for the outer diameter dimension, bending radius and tensile strength of the optical cable in a severe communication environment. A cable opening rope is arranged between the inner and outer sheaths, thereby facilitating direct access to a room after the outer sheath is removed to perform diverging connection, and the miniature high-strength flexible optical cable is more convenient to use and lay.

Description

technical field [0001] The invention relates to a miniature high-strength flexible optical cable, in particular to a high-strength miniature optical cable with excellent tensile performance and weather resistance. Background technique [0002] In recent years, with the development of optical fiber communication in the direction of FTTB (fiber to the building), FTTO (fiber to the office), FTTH (fiber to the home), and users' requirements for fiber to the room, fiber to the desktop, etc. High, micro-optical cables have developed rapidly, and various optical cable manufacturers have also increased investment in research and development and production of micro-optical cables. However, there are more or less problems with the miniature optical cables that appear on the market at present. On the one hand, the existing indoor micro-optical cables contain fewer fiber cores and only one layer of sheath. Although they have a small bending radius, their transmission capacity, weather ...

AI Technical Summary

Problems solved by technology

On the one hand, the existing indoor micro-optical cables contain fewer fiber cores and only one layer of sheath. Although they have a small bending radius, their transmission capacity, weather resistance and tensile properties cannot meet the needs of high-capacity data transmission, overhead , harsh communication environments and other occasions; on the other hand, although the existing outdoor micro-optical cables have the advantages of high fiber cores, they use steel wires or other rigid components as reinforcements and have large bending radii. When wiring in narrow spaces or pipelines, it will affect the use of optical cables, waste pipeline resources, and even cause fiber breakage in optical cables

[0003] Although the optical cable described in Chinese patent 2010205003289.6 is small in size and has good bending performance, its tensile performance and weather resistance are poor, which cannot meet the use requirements in harsh communication environments

The optical cable described in Chinese patent 201220149546.X adopts a spiral armored tube structure. Although it has excellent compressive and tensile properties, the size of the optical cable is large and the weight of the optical cable is heavy, which is not conducive to the use of optical cable wiring in a narrow space.

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