CN216119686U

CN216119686U - Photoelectric composite cable

Info

Publication number: CN216119686U
Application number: CN202120418669.8U
Authority: CN
Inventors: 付天龙; 张桂林; 张洪雷; 李贵男; 陈宁; 王建权
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-03-22
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a photoelectric composite cable which comprises a sheath, wherein a feeder line, a shielding layer covering the feeder line, aramid yarns and a water blocking tape which are used for covering the shielding layer and are sequentially coated inwards along the radial direction on the inner peripheral wall of the sheath, a plurality of butterfly optical cables which are uniformly distributed along the circumferential direction of the shielding layer are arranged between the water blocking tape and the shielding layer, and PP (polypropylene) is filled in gaps among the butterfly optical cables, the shielding layer and the water blocking tape. The utility model solves the technical problem of how to simultaneously transmit optical signals and electric energy in the same cable without mutual interference, and has the advantages of low laying cost, low construction strength, small laying occupation volume, high construction efficiency, high resource utilization rate, good transmission effect and the like.

Description

Photoelectric composite cable

Technical Field

The utility model relates to the technical field of communication, in particular to a photoelectric composite cable.

Background

At present, in FTTH network construction, all adopt the mode of laying independent optical cable and cable to transmit signal and electric energy respectively, it is obvious, this not only lays with high costs, construction strength is big, lay and occupy bulky, the efficiency of construction is low, resource utilization is low, moreover because lack the shielding function between optical cable and the cable, so the mutual interference easily between the two to lead to the transmission effect poor.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to simultaneously transmit optical signals and electric energy in the same cable without mutual interference.

In order to solve the technical problem, the utility model provides a photoelectric composite cable which comprises a sheath, wherein a feeder line, a shielding layer covering the feeder line, aramid yarn and a water blocking tape which are used for covering the shielding layer and are sequentially coated inwards along the radial direction are coaxially arranged in the sheath, a plurality of butterfly optical cables are uniformly distributed along the circumferential direction of the shielding layer and are arranged between the water blocking tape and the shielding layer, and PP is filled in gaps among the butterfly optical cables, the shielding layer and the water blocking tape.

In one embodiment of the utility model, the feeder comprises an insulating sheath and a power conductor coaxially disposed within the insulating sheath.

In an embodiment of the utility model, the butterfly-shaped optical cable comprises a rubber-covered wire sheath, and a plurality of optical fibers and a pair of reinforcing cores which are coated in the rubber-covered wire sheath, wherein the optical fibers are located at the center of the rubber-covered wire sheath, the pair of reinforcing cores are symmetrically located at two sides of the optical fibers and are arranged on the same straight line with the optical fibers, and a pair of notches which are symmetrically located at two sides of the reinforcing cores and point to the optical fibers are arranged on the periphery of the rubber-covered wire sheath.

In one embodiment of the utility model, the reinforcement core is made of a non-metallic resilient material.

In one embodiment of the utility model, a matching aramid yarn is provided between the shielding layer and the feeder at each of the notches.

In one embodiment of the present invention, the shielding layer has a two-layer structure with an inner layer of an aluminum foil layer and an outer layer of a copper mesh braid layer.

In one embodiment of the utility model, the copper mesh braid is a tinned copper wire braid.

In one embodiment of the utility model, the jacket is made of a low smoke, halogen-free, flame retardant elastomeric material.

In one embodiment of the utility model, a tearing rope is further arranged between the water-blocking tape and the shielding layer.

In one embodiment of the utility model, the water-blocking tape is a fiberglass tape.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. the feeder line coaxial with the sheath and the butterfly-shaped optical cables uniformly distributed on the periphery of the feeder line along the circumferential direction of the feeder line are arranged in the sheath, and the periphery of the feeder line is coated with the shielding layer which separates the butterfly-shaped optical cables from the feeder line, so that optical signals and electric energy can be simultaneously transmitted without mutual interference in the same cable.

2. The aramid yarn and the water-blocking tape which surround the butterfly optical cable are sequentially coated on the inner peripheral wall of the sheath along the radial direction inwards, so that the water resistance and the tensile resistance are good.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which

FIG. 1 is a schematic structural view of the present invention;

the specification reference numbers indicate: 1. sheath, 2, feeder line, 21, insulating sheath, 22, power cord, 3, shielding layer, 4, aramid yarn, 5, water-blocking tape, 6, butterfly-shaped optical cable, 61, rubber-covered wire sheath, 611, gap, 62, optical fiber, 63 and reinforcing core.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

11. Referring to fig. 1, a photoelectric composite cable includes a sheath 1, a feeder 2 and a shielding layer 3 covering the feeder 2 are coaxially arranged inside the sheath 1, in this embodiment, the feeder 2 includes an insulating sheath 21 and a power line 22 coaxially arranged in the insulating sheath 21, the shielding layer 3 is a two-layer structure with an inner layer of an aluminum foil layer and an outer layer of a copper mesh braid, and the copper mesh braid is a tinned copper wire braid. The interior perisporium of sheath 1 is gone up to have along radial inside cladding in proper order and all encloses aramid yarn 4 and the water-blocking tape 5 of establishing including shielding layer 3, and aramid yarn 4's setting makes tensile resistance good. The water-resistant property is good due to the arrangement of the water-blocking tape 5, and in the embodiment, the water-blocking tape 5 is a glass fiber tape. A plurality of butterfly optical cables 6 which are uniformly distributed along the circumferential direction of the shielding layer 3 are arranged between the water blocking tape 5 and the shielding layer 3, PP is filled in gaps between the butterfly optical cables 6 and the shielding layer 3 and the water blocking tape 5, the butterfly optical cables 6 and the feeder line 2 are integrated in the same cable through the structural arrangement, and the butterfly optical cables and the feeder line are separated by the shielding layer 3, so that the technical effect of simultaneously carrying out non-interfering transmission on optical signals and electric energy in the same cable is achieved.

In a preferred embodiment of the present invention, the butterfly-shaped optical cable 6 includes a sheath 61, and a plurality of optical fibers 62 and a pair of strength cores 63 covered in the sheath 61, the optical fibers 62 are located at the center of the sheath 61, the pair of strength cores 63 are symmetrically located at two sides of the optical fibers 62 and are arranged on the same straight line with the optical fibers 62, and a pair of notches 611 symmetrically located at two sides of the strength cores 63 and pointing to the optical fibers 62 are formed on the outer periphery of the sheath 61, so that the construction convenience is further improved and the size of the optical-electrical composite cable is reduced.

In a preferred embodiment of the present invention, the reinforcing core 63 is made of a non-metallic elastic material, which reduces the weight of the optical/electrical composite cable while ensuring the strength thereof.

In a preferred embodiment of the present invention, a matched aramid yarn 4 rope is provided between the shielding layer 3 and the feeder 2 at each notch 611, which further improves the tensile strength of the present photoelectric composite cable.

In a preferred embodiment of the present invention, the sheath 1 is made of a low-smoke halogen-free flame-retardant elastic material, so that the present photoelectric composite cable has good flame-retardant performance.

In a preferred embodiment of the present invention, a tearing rope is further provided between the water-blocking tape 5 and the shielding layer 3, so that the construction convenience is improved.

In summary, the feeder line 2 coaxial with the sheath 1 and the butterfly-shaped optical cables 6 uniformly distributed on the periphery of the feeder line 2 along the circumferential direction of the feeder line 2 are arranged in the sheath 1, and the periphery of the feeder line 2 is coated with the shielding layer 3 for separating the butterfly-shaped optical cables 6 from the feeder line 2, so that optical signals and electric energy can be transmitted in the same cable without mutual interference.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The photoelectric composite cable is characterized by comprising a sheath, wherein a feeder line, a shielding layer covering the feeder line, aramid yarns and a water blocking tape which are used for surrounding the shielding layer and are sequentially coated on the inner circumferential wall and the inner circumferential wall inwards in the radial direction are coaxially arranged in the sheath, a plurality of butterfly optical cables are uniformly distributed along the circumferential direction of the shielding layer and arranged between the water blocking tape and the shielding layer, and PP (polypropylene) is filled in gaps among the butterfly optical cables, the shielding layer and the water blocking tape.

2. The optoelectronic composite cable of claim 1, wherein the feeder line comprises an insulating sheath and a power line coaxially disposed within the insulating sheath.

3. The optical-electrical composite cable according to claim 1, wherein the butterfly-shaped optical cable includes a sheath, and a plurality of optical fibers and a pair of strength cores wrapped in the sheath, the optical fibers are located at a center of the sheath, the pair of strength cores are symmetrically located at two sides of the optical fibers and are aligned with the optical fibers, and a pair of notches are formed on an outer periphery of the sheath, symmetrically located at two sides of the strength cores and are directed to the optical fibers.

4. The optical-electrical composite cable of claim 3, wherein the strength core is made of a non-metallic, resilient material.

5. The opto-electric composite cable according to claim 3 wherein a matching aramid yarn is provided between the shielding layer and the feeder at each of the notches.

6. The optical-electrical composite cable according to claim 1, wherein the shielding layer has a two-layer structure with an inner layer of an aluminum foil layer and an outer layer of a copper mesh braid.

7. The opto-electrical composite cable according to claim 6, wherein the copper mesh braid is a tinned copper wire braid.

8. The opto-electrical composite cable according to claim 1, wherein the jacket is made of a low smoke, zero halogen, flame retardant elastomeric material.

9. The optical-electrical composite cable according to claim 1, wherein a tear cord is further disposed between the water-blocking tape and the shielding layer.

10. The opto-electrical composite cable according to claim 1, wherein the water blocking tape is a fiberglass tape.