Optical fiber composite cable

Abstract

The utility model discloses an optical fiber composite cable, which comprises a cable core formed by twisting optical fiber cores and conductor cores, a wrapping layer and a sheath layer, the wrapping layer and the sheath layer are coated on the surface of the outer side of the cable core, an outer shielding layer is arranged between the outer side of the wrapping layer and the inner side of the sheath layer, one optical fiber core is arranged at the center of the cable core, and the other optical fiber core is arranged at the center of the cable core. The plurality of conductor wire cores are sequentially arranged around the optical fiber wire core in the circumferential direction, and gaps formed between the conductor wire cores and the optical fiber wire core and gaps formed between the conductor wire cores and the wrapping layer are filled with elastic water blocking strips extending in the axial direction of the cable core. Wherein at least one reinforcing core wire is arranged in each elastic water-blocking strip filled between the conductor wire core and the optical fiber wire core, and the wrapping layer is formed by winding a water-blocking tape on the outer side of the cable core in an overlapping manner. According to the utility model, while the cable structure is simplified, the overall anti-extrusion and anti-distortion performance can be improved, the overall structural strength and tensile resistance can be improved, and the stability of the optical fiber in the long-term use process can be protected.

Description

Technical Field

[0001] The utility model relates to an optical fiber composite cable, belonging to the technical field of cables. Background Art

[0002] Currently, fiber optic cables still have many shortcomings in practical use. For example, they have a limited functionality, lacking the ability to transmit power, only optical fiber communication capabilities, and are fragile and have poor insulation. Fiber-optic composite power cables combine optical fiber cables with power cables, sharing a protective layer. This saves installation space and costs, allowing both power and data signals to be connected to power systems, power transmission control systems, and other systems simultaneously. However, the issue of fiber fragility still exists. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an optical fiber composite cable, which can improve the overall anti-extrusion and anti-twisting performance while streamlining the cable structure, and can also improve the overall structural strength and tensile resistance, thereby protecting the stability of the optical fiber during long-term use.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fiber optic composite cable, comprising: a cable core formed by twisting an optical fiber core and a conductor core, a cladding layer and a sheath layer coated on the outer surface of the cable core, an outer shielding layer is arranged between the outer side of the cladding layer and the inner side of the sheath layer, one optical fiber core is arranged at the center of the cable core, and a plurality of conductor cores are arranged in sequence along the circumferential direction around the optical fiber core, and the gaps formed between the conductor core and the optical fiber core and the cladding layer are filled with an elastic water-blocking strip extending along the axial direction of the cable core, wherein each of the elastic water-blocking strips filled between the conductor core and the optical fiber core is provided with at least one reinforcing core wire.

[0005] The further improved scheme in the above technical scheme is as follows:

[0006] 1. In the above solution, the optical fiber core includes an optical fiber core and a first insulating layer coated on the outside of the optical fiber core.

[0007] 2. The conductor core comprises: a plurality of copper wires twisted together, an inner shielding layer arranged outside the copper wires, and a second insulating layer covering the outer side of the inner shielding layer.

[0008] 3. The outer shielding layer is woven from copper wire or tinned copper wire.

[0009] 4. The wrapping layer is formed by overlapping the water-blocking tape and wrapping it around the outside of the cable core.

[0010] 5. The reinforcing core wire is a steel wire core wire, a carbon fiber core wire or a polyester fiber core wire.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The utility model discloses an optical fiber composite cable, in which one optical fiber core is arranged at the center of the cable core, and a plurality of conductor cores are arranged in sequence along the circumferential direction around the optical fiber core. The gaps formed between the conductor core, the optical fiber core and the cladding layer are filled with an elastic water-blocking strip extending along the axial direction of the cable core. Each elastic water-blocking strip filled between the conductor core and the optical fiber core is provided with at least one reinforcing core wire. While streamlining the cable structure, the overall anti-extrusion and anti-twisting performance can be improved, and the overall structural strength and tensile resistance can also be improved, thereby protecting the stability of the optical fiber during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 This is a schematic structural diagram of the optical fiber composite cable of the utility model;

[0014] Attachment Figure 2 This is a schematic structural diagram of the conductor core in the optical fiber composite cable of the present invention.

[0015] In the above figures: 1. Optical fiber core; 11. Optical fiber core; 12. First insulation layer; 2. Conductor core; 21. Copper wire; 22. Inner shielding layer; 23. Second insulation layer; 3. Wrapping layer; 4. Outer shielding layer; 5. Sheath layer; 6. Elastic water-blocking strip; 7. Reinforced core wire. DETAILED DESCRIPTION

[0016] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0017] Example 1: An optical fiber composite cable comprises: a cable core formed by twisting an optical fiber core 1 and a conductor core 2, a cladding layer 3 and a sheath layer 5 coated on the outer surface of the cable core, an outer shielding layer 4 is provided between the outer side of the cladding layer 3 and the inner side of the sheath layer 5, one optical fiber core 1 is provided at the center of the cable core, and a plurality of conductor cores 2 are arranged in sequence along the circumferential direction around the optical fiber core 1, and the gaps formed between the conductor core 2 and the optical fiber core 1 and the cladding layer 3 are filled with an elastic water-blocking strip 6 extending along the axial direction of the cable core, wherein each of the elastic water-blocking strips 6 filled between the conductor core 2 and the optical fiber core 1 is provided with at least one reinforcing core wire 7.

[0018] The conductor core 2 comprises a plurality of twisted copper conductors 21 , an inner shielding layer 22 disposed outside the copper conductors 21 , and a second insulating layer 23 covering the outer side of the inner shielding layer 22 .

[0019] The outer shielding layer 4 is woven from copper wires.

[0020] The reinforcing core wire 7 is a carbon fiber core wire.

[0021] Example 2: An optical fiber composite cable comprises: a cable core formed by twisting an optical fiber core 1 and a conductor core 2, a cladding layer 3 and a sheath layer 5 coated on the outer surface of the cable core, an outer shielding layer 4 is provided between the outer side of the cladding layer 3 and the inner side of the sheath layer 5, one optical fiber core 1 is provided at the center of the cable core, and a plurality of conductor cores 2 are arranged in sequence along the circumferential direction around the optical fiber core 1, and the gaps formed between the conductor core 2 and the optical fiber core 1 and the cladding layer 3 are filled with an elastic water-blocking strip 6 extending along the axial direction of the cable core, wherein each of the elastic water-blocking strips 6 filled between the conductor core 2 and the optical fiber core 1 is provided with at least one reinforcing core wire 7.

[0022] The optical fiber core 1 includes an optical fiber core 11 and a first insulating layer 12 covering the outer side of the optical fiber core 11 .

[0023] The conductor core 2 comprises a plurality of twisted copper conductors 21 , an inner shielding layer 22 disposed outside the copper conductors 21 , and a second insulating layer 23 covering the outer side of the inner shielding layer 22 .

[0024] The outer shielding layer 4 is braided from tinned copper wires.

[0025] The wrapping layer 3 is formed by overlapping and winding a water-blocking tape on the outside of the cable core.

[0026] The reinforcing core wire 7 is a polyester fiber core wire.

[0027] The above-mentioned optical fiber composite cable can improve the overall anti-extrusion and anti-twisting performance while streamlining the cable structure, and can also improve the overall structural strength and tensile resistance, thereby protecting the stability of the optical fiber during long-term use.

[0028] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. An optical fiber composite cable comprising: A cable core formed by twisting an optical fiber core (1) and a conductor core (2), a cladding layer (3) and a sheath layer (5) coated on the outer surface of the cable core, an outer shielding layer (4) is provided between the outer side of the cladding layer (3) and the inner side of the sheath layer (5), and is characterized in that: one optical fiber core (1) is provided at the center of the cable core, a plurality of conductor cores (2) are arranged in sequence along the circumferential direction around the optical fiber core (1), and the gaps formed between the conductor core (2) and the optical fiber core (1) and the cladding layer (3) are filled with an elastic water-blocking strip (6) extending along the axial direction of the cable core, wherein each of the elastic water-blocking strips (6) filled between the conductor core (2) and the optical fiber core (1) is provided with at least one reinforcing core wire (7).

2. The optical fiber composite cable according to claim 1, wherein: The optical fiber core (1) comprises an optical fiber core (11) and a first insulating layer (12) coated on the outside of the optical fiber core (11).

3. The optical fiber composite cable according to claim 1, wherein: The conductor core (2) comprises: a plurality of mutually twisted copper conductors (21), an inner shielding layer (22) arranged outside the copper conductors (21), and a second insulating layer (23) covering the outer side of the inner shielding layer (22).

4. The optical fiber composite cable according to claim 1, wherein: The outer shielding layer (4) is woven from copper wires or tinned copper wires.

5. The optical fiber composite cable according to claim 1, wherein: The wrapping layer (3) is formed by overlapping and wrapping a water-blocking tape around the outside of the cable core.

6. The optical fiber composite cable according to claim 1, wherein: The reinforcing core wire (7) is a steel wire core wire, a carbon fiber core wire or a polyester fiber core wire.

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