CN217982884U

CN217982884U - Special photoelectric composite cable

Info

Publication number: CN217982884U
Application number: CN202221023193.9U
Authority: CN
Inventors: 付天龙; 陈宁; 丛晓红; 刘蒙; 王杨; 王建权
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-12-06
Anticipated expiration: 2032-04-29

Abstract

The utility model relates to the technical field of optical cable auxiliary devices, in particular to a special photoelectric composite cable which has simple structure, improves the transmission quality and efficiency of photoelectric signals, reduces the abrasion during laying and improves the pressure resistance; the device comprises an outer sheath, and an optical unit and an electric unit which are positioned inside the outer sheath; the optical unit comprises an optical fiber assembly and a protective layer wrapping the optical fiber assembly, wherein the protective layer sequentially comprises a flexible steel pipe, an aramid yarn layer I, a metal wire woven layer, an inner sheath, an aramid yarn layer II and a protective sheath from inside to outside.

Description

Special photoelectric composite cable

Technical Field

The utility model relates to an optical cable auxiliary device's technical field especially relates to a special type photoelectricity composite cable.

Background

The photoelectric composite cable is structurally characterized in that optical cable cores are arranged among power transmission wire cores, and the photoelectric composite cable is characterized in that power and optical signals can be transmitted simultaneously. In addition, the temperature of the power wire core can be monitored by using the temperature-sensitive attenuation of the optical fiber. The application of the photoelectric composite cable is gradually expanded due to the technological progress, and the photoelectric composite cable is very suitable for large-span laying in the sea and land, building of rural access networks, equipment needing to provide power supply for a remote end and communication in special areas where the equipment is difficult to maintain. Meanwhile, the photoelectric composite cable is also very suitable to be used as a transmission medium to establish an access network, so that the network integration of telephone, data, television and electric power is realized. With the planning and construction development of the strategy of national information highway and national power grid company intelligent power grid, the photoelectric composite cable is continuously developed.

The photoelectric composite cable in the prior art has the following disadvantages: photoelectric signal transmission quality and efficiency need to be improved, and in the laying process, the resistance that the cable surface received is great, and compressive property needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a special type photoelectric composite cable, its simple structure improves photoelectric signal transmission quality and efficiency, reduces the wearing and tearing when laying and improves compressive capacity.

The utility model relates to a special photoelectric composite cable, which comprises an outer sheath, and an optical unit and an electric unit which are positioned inside the outer sheath; the optical unit comprises an optical fiber assembly and a protective layer wrapping the optical fiber assembly, and the protective layer sequentially comprises a flexible steel pipe, an aramid yarn layer I, a metal wire woven layer, an inner sheath, an aramid yarn layer II and a protective sleeve from inside to outside.

Further, the optical fiber assembly includes an optical fiber and a tight jacket surrounding the optical fiber.

Further, the outer sheath is made of TPU polyurethane.

Further, the metal wire braided layer is made of steel wires.

Further, the electric unit is a tinned copper wire braid and a feeder line from outside to inside in sequence.

Further, PP filling is adopted among the electric unit, the optical unit and the outer sheath.

Compared with the prior art, the beneficial effects of the utility model are that: through the flexible steel pipe, the wire weaving layer, aramid yarn layer one and aramid yarn layer two that set up, improved performances such as tensile and resistance to compression of this photoelectric composite cable greatly to through the wire weaving layer that sets up, external magnetic field that can significantly reduce is to the interference of the signal of telecommunication, improves signal of telecommunication's efficiency and quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

in the drawings, the reference numbers: 1. filling PP; 2. a feed line; 3. an optical fiber; 4. tightening the sleeve; 5. a flexible steel pipe; 6. aramid yarn layer I; 7. a wire braid; 8. an inner sheath; 9. a second aramid yarn layer; 10. a protective sleeve; 11. an outer sheath; 12. tinned wire weaving layer.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1, the special photoelectric composite cable of the present invention includes an outer sheath 11, and an optical unit and an electrical unit located inside the outer sheath 11; the optical unit comprises an optical fiber assembly and a protective layer wrapping the optical fiber assembly, and the protective layer sequentially comprises a flexible steel pipe 5, an aramid yarn layer I6, a metal wire braid layer 7, an inner sheath 8, an aramid yarn layer II 9 and a protective sheath 10 from inside to outside;

in the embodiment, the three groups of electric units are arranged, the electric units and the optical units realize simultaneous transmission of electric signals and electric signals, the tensile property, the compression resistance and other properties of the photoelectric composite cable are greatly improved through the arranged flexible steel pipe 5, the metal wire woven layer 7, the aramid yarn layer I6 and the aramid yarn layer II 9, and the interference of an external magnetic field on the electric signals can be greatly reduced through the arranged metal wire woven layer 7, so that the efficiency and the quality of electric signal transmission are improved;

the materials of the inner sheath 8 and the protective sheath 10 in the device are not described, and all the materials can be adopted and are not described.

Further, the optical fiber assembly includes an optical fiber 3 and a tight sleeve 4 wrapping the optical fiber 3;

in this embodiment, the tight sleeve 4 surrounds the optical fiber 3 to play a role of a wire harness, and further, the outer sheath 11 is made of TPU polyurethane;

in this embodiment, the outer sheath 11 is made of TPU polyurethane, and has the advantage of low friction, so that the cable is less in resistance during laying, and abrasion can be reduced.

Further, the metal wire braid 7 is made of steel wire;

in this embodiment, the metal wire braid 7 is braided by steel wires to perform a shielding function.

Further, the electric unit comprises a tinned copper wire braid 12 and a feeder 2 from outside to inside in sequence;

in this embodiment, the tinned copper wire braid 12 is wrapped outside the feeder 2, so that the interference of an external magnetic field to an electrical signal can be greatly reduced, and the efficiency and quality of electrical signal transmission are improved.

Further, PP is filled between the electric unit, the optical unit and the outer sheath 11 to form a filling 1;

in this embodiment, adopt PP to fill 1 between electric unit, the light unit and the oversheath 11 for the three is more firm, and stability is better.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A special type photoelectric composite cable comprises an outer sheath (11), and an optical unit and an electric unit which are positioned in the outer sheath (11); the optical unit is characterized by comprising an optical fiber assembly and a protective layer wrapping the optical fiber assembly, wherein the protective layer sequentially comprises a flexible steel pipe (5), an aramid yarn layer I (6), a metal wire braid layer (7), an inner sheath (8), an aramid yarn layer II (9) and a protective sleeve (10) from inside to outside.

2. A specialty photoelectric composite cable as claimed in claim 1, wherein said optical fiber assembly comprises optical fibers (3) and a tight jacket (4) surrounding the optical fibers (3).

3. A specialty opto-electrical composite cable as claimed in claim 2, wherein said outer jacket (11) is TPU polyurethane.

4. A specialty optoelectrical composite cable according to claim 3, wherein said metallic braid (7) material is steel wire.

5. A special type of optical/electrical composite cable as claimed in claim 4, characterized in that said electrical elements are, in order from the outside to the inside, a braided layer of tinned copper wire (12) and a feed line (2).

6. A specialty optoelectrical composite cable according to claim 5, wherein PP is used to fill (1) the space between the electrical, optical and outer sheaths (11).