CN217739566U - Composite optical cable - Google Patents

Abstract

The present disclosure provides a composite optical cable, comprising a power transmission cable assembly and an optical cable assembly, wherein the power transmission cable assembly comprises a sheath layer and a plurality of power lines arranged in the sheath layer, and the optical cable assembly comprises a protective layer and at least one optical fiber arranged in the protective layer; wherein, the sheath layer is connected with the protective layer or integrally formed. The composite optical cable solves the problem of electricity taking of the small base station, realizes optical fiber signal transmission, can be widely applied to optical fiber transmission between indoor 5G base stations, and effectively avoids the problem that the cable needs to be replaced again in technical upgrading iteration.

Description

Composite optical cable

Technical Field

The present disclosure relates to the field of cable technology, and in particular, to a composite optical cable.

Background

With the continuous development of communication technology, optical fiber transmission is increasingly applied to the communication technology, and in the construction of a communication system, optical fibers and power cables need to be applied to many places at the same time, so that the composite optical cable is more and more widely used, and the structural form is more and more. In particular, with the continuous increase of 5G service types and the continuous expansion of industry boundaries, 85% of mobile services will be indoors in the future, and the construction of high-density small base stations will be inevitable for the construction of 5G indoor scenes. However, the problem of power supply of a large number of small base station devices is a difficult problem that must be solved by a network construction unit.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a composite optical cable to at least solve the above technical problems existing in the prior art.

The composite optical cable comprises a power transmission cable assembly, wherein the power transmission cable assembly comprises a sheath layer and a plurality of power wires which are arranged in the sheath layer and used for power transmission; and a fiber optic cable assembly comprising a protective layer and at least one optical fiber disposed within the protective layer; wherein, the restrictive coating is connected with the protective layer or integrated into one piece.

In an embodiment, the sheath layer includes a main body portion, the main body portion covers the peripheries of the power lines, and the main body portion and the protection layer are integrally formed.

In an embodiment, the sheath layer includes a main body portion and at least one suspension wire portion integrally formed with an outer periphery of the main body portion, the main body portion covers outer peripheries of the power lines, and the protection layer is connected to the suspension wire portion.

In an embodiment, the number of the power wires is three, the number of the optical cable assemblies is two, two adjacent power wires contact with each other to form a ring, and the two optical cable assemblies are symmetrically arranged with respect to the center of the body portion on the cross section of the composite optical cable.

In an embodiment, the number of the power lines is three, the number of the optical cable assemblies is two, the protective layers of the two optical cable assemblies are respectively connected with the two suspension wire portions in a one-to-one correspondence manner, two adjacent power lines are in contact with each other to form a ring, and the two optical cable assemblies are symmetrically arranged relative to the center of the body portion on the cross section of the composite optical cable.

In one embodiment, the protective layer and the hanging wire portion are integrally formed.

In one embodiment, the protective layer is connected to the hanging line portion by glue.

In one embodiment, the fiber optic cable assembly further includes a strength member disposed within the protective layer.

In an embodiment, the number of the reinforcing cores is two, two reinforcing cores are located on two sides of at least one optical fiber, and the two reinforcing cores and the at least one optical fiber are in the same straight line.

In an embodiment, the protective layer is provided with two grooves on a cross section of the optical cable assembly, the two grooves are symmetrically arranged relative to at least one optical fiber, and a connecting line of the two grooves and a connecting line of the two reinforcing cores meet a vertical condition.

In the disclosure, the power transmission cable assembly can transmit power and ensure stable line, so as to meet the load requirement; the optical cable assembly is arranged to realize the transmission of optical fiber signals; therefore, the composite optical cable solves the problem of electricity taking of the small base station, realizes optical fiber signal transmission, can be widely applied to optical fiber transmission between indoor 5G base stations, and effectively avoids the problem that the cable needs to be replaced again in technical upgrading iteration. Moreover, the sheath layer of the power transmission cable assembly is connected with or integrally formed with the protective layer of the optical cable assembly, so that the power transmission cable assembly and the optical cable assembly are easy to peel off, and the power transmission cable assembly is convenient to connect with equipment such as a power strip and manufacture and installation of a plug of the optical cable assembly.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

FIG. 1 is a schematic cross-sectional view of a composite optical cable according to an exemplary embodiment of the present disclosure (a sheath layer is connected to a protective layer);

FIG. 2 is a schematic cross-sectional view of a composite optical cable according to an exemplary embodiment of the present disclosure (the jacket layer is integrally formed with the protective layer);

FIG. 3 is a cross-sectional schematic view of one exemplary embodiment of a composite fiber optic cable of the present disclosure (with the cable assembly symmetrically disposed with respect to the body portion);

FIG. 4 is a cross-sectional view of a composite optical cable according to an exemplary embodiment of the present disclosure (protective layer coupled to messenger section);

fig. 5 shows a schematic cross-sectional view of a composite optical cable according to an exemplary embodiment of the present disclosure (the protective layer is integrally formed with the messenger section).

The reference numbers in the figures illustrate: 1. a power transmission cable assembly; 2. an optical cable assembly; 11. a sheath layer; 12. a power line; 21. a protective layer; 22. an optical fiber; 23. a reinforcement core; 111. a body portion; 112. a wire hanging part; 121. an insulating layer; 122. a copper wire; 211. and (4) a groove.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, a composite optical cable according to an exemplary embodiment of the present disclosure includes a power transmission cable assembly 1 and a cable assembly 2, the power transmission cable assembly 1 including a sheathing layer 11 and a plurality of power lines 12 disposed in the sheathing layer 11 to transmit power, each of the power lines 12 including an insulating layer 121 and a plurality of copper wires 122 disposed in the insulating layer 121. The optical cable assembly 2 includes a protective layer 21 and at least one optical fiber 22 (the number of copper wires 122 in each power supply line 12 is nineteen in the illustrated embodiment of the present disclosure, and the number of optical fibers 22 in the optical cable assembly 2 is two for example), which are disposed in the protective layer 21, and the sheathing layer 11 of the power transmission cable assembly 1 is connected to the protective layer 21 of the optical cable assembly 2, or, as shown in fig. 2, the sheathing layer 11 of the power transmission cable assembly 1 is integrally formed with the protective layer 21 of the optical cable assembly 2.

In the present embodiment, the sheath layer 11 and the protective layer 21 are made of the same material, and there are a plurality of materials that can be selected, including but not limited to at least one of polyvinyl chloride, polyethylene, glass fiber reinforced plastic material, low smoke zero halogen material, polyurethane, and thermoplastic polyurethane, so as to protect the internal structures of the power transmission cable assembly 1 and the optical cable assembly 2. Preferably, sheath layer 11 adopts low smoke and zero halogen material to improve composite optical cable's fire resistance, can low smoke, nontoxic gaseous emission when composite optical cable burns, safety ring protects, is applicable to indoor environment more and uses. The insulating layer 121 of the power line 12 is made of polyethylene or other materials that can produce an insulating effect in actual production, and is not limited herein. The optical cable component 2 can specifically adopt a rubber-insulated-wire optical cable, in the prior art, the rubber-insulated-wire optical cable is mostly of a single-core or double-core structure, and can also be made into a four-core structure, the cross section of the rubber-insulated-wire optical cable is 8-shaped, the reinforcing piece is positioned at the center of two circles and can adopt a metal or nonmetal structure, and the optical fiber 22 is positioned at the geometric center of the 8-shaped. The optical fiber 22 in the rubber-insulated-wire cable adopts G.657 small-bending-radius optical fiber, can be laid with a bending radius of 20mm, and is suitable for entering a house in a pipeline mode or a wire laying mode in a building. When the sheath layer 11 and the protective layer 21 are integrally formed, a mold with the same shape as the sheath layer 11 and the protective layer 21 can be used for extrusion molding on a sheath machine in the production process, so that the operation steps are reduced, and the production efficiency is improved.

It can be understood that the composite optical cable in the present disclosure can transmit electricity and ensure the line stability, satisfying the load requirement, through the power transmission cable assembly 1; the optical cable assembly 2 is arranged to realize the transmission of optical fiber signals; therefore, the composite optical cable solves the problem of electricity taking of the small base station, realizes optical fiber signal transmission, can be widely applied to optical fiber transmission between indoor 5G base stations, and effectively avoids the problem that the cable needs to be replaced again in technical upgrading iteration. Moreover, the sheath layer 11 of the power transmission cable assembly 1 is connected with or integrally formed with the protective layer 21 of the optical cable assembly 2, so that the power transmission cable assembly 1 and the optical cable assembly 2 are easy to peel off, and the power transmission cable assembly 1 is convenient to be connected with equipment such as a power strip and the like and the optical cable assembly 2 plug connector is convenient to manufacture and install.

In an embodiment, the sheath layer 11 includes a main body 111, the main body 111 covers the outer peripheries of the plurality of power lines 12, and the main body 111 is integrally formed with the protective layer 21 of the optical cable assembly 2.

In the present embodiment, the main body 111 is annular, and the plurality of power lines 12 are compactly arranged in the main body 111, so that the structure of the composite optical cable is compact and stable; because the body part 111 and the protective layer 21 of the optical cable assembly 2 are integrally formed, in the production process, the mold with the same shape as the body part 111 and the protective layer 21 can be used for extrusion molding on a sheathing machine, so that the operation steps are reduced, and the production efficiency is improved.

In an embodiment, the sheath layer 11 of the power transmission cable assembly 1 includes a body portion 111 and at least one hanging portion 112 integrally formed with an outer periphery of the body portion 111, the body portion 111 covers outer peripheries of the plurality of power lines 12, the protection layer 21 of the cable assembly 2 is integrally formed with the hanging portion 112 of the sheath layer 11, or the protection layer 21 is bonded to the hanging portion 112 by glue.

In the present embodiment, the number of the suspending wire portions 112 corresponds to the number of the optical cable assemblies 2 at all times, regardless of the number of the suspending wire portions 112. Through setting up hanging portion 112, increased the distance between transmission cable subassembly 1 and the optical cable subassembly 2, not only can reduce the signal interference between the two, can also make and peel off more easily between restrictive coating 11 and the protective layer 21, use the manual work to accomplish and peel off. The protective layer 21 is glued to the hanging wire part 112, namely, the protective layer 21 is glued to the hanging wire part 112 by an adhesive; or, preferably, the protective layer 21 and the suspension wire portion 112 are integrally formed, and in the production process, a die having the same shape as the protective layer 21, the suspension wire portion 112 and the body portion 111 may be used for extrusion molding on a sheathing machine, so as to reduce the number of operation steps, improve the production efficiency, and have a stable structure.

Referring to fig. 3, in an embodiment, the number of the power wires 12 is three, the number of the optical cable assemblies 2 is two, two adjacent power wires 12 contact with each other to form a ring, and the two optical cable assemblies 2 are symmetrically arranged with respect to the center of the body 111 in the cross section of the composite optical cable.

In this embodiment, the power transmission cable assembly 1 is disposed between the two sets of optical cable assemblies 2, and every two adjacent power lines 12 contact each other to form a ring, so that the composite optical cable can be made compact in structure and convenient to construct and route on the premise of ensuring the transmission performance of the optical cable assemblies 2. The colors of the three power lines 12 are divided into brown (live line), blue (zero line) and yellow-green (ground line) according to the international standard, and the structure adopting the three power lines 12 is more in accordance with the power utilization safety requirement than the structure adopting only two power lines 12 in the prior art. Preferably, the two sets of cable assemblies 2 are co-linear with the center of the body portion 111.

In an embodiment, the number of the power wires 12 is three, the number of the optical cable assemblies 2 is two, the number of the hanging wire portions 112 of the sheath layer 11 corresponds to the number of the optical cable assemblies 2, and is also two, the protective layers 21 of the two optical cable assemblies 2 are respectively connected with the two hanging wire portions 112 in a one-to-one correspondence manner, every two adjacent power wires 12 in the body portion 111 are in contact with each other to form a ring shape, and the two optical cable assemblies 2 are symmetrically arranged relative to the center of the body portion 111 on the cross section of the composite optical cable.

In this embodiment, by providing the hanging wire portion 112, the distance between the power transmission cable assembly 1 and the optical cable assembly 2 is increased, so that not only can the signal interference between the power transmission cable assembly 1 and the optical cable assembly 2 be reduced, but also the sheath layer 11 and the protective layer 21 can be peeled off more easily, and the peeling can be completed manually, thereby facilitating the connection of the power transmission cable assembly 1 and equipment such as a power strip and the manufacture and installation of a plug of the optical cable assembly 2. The power transmission cable assembly 1 is arranged between the two groups of optical cable assemblies 2, and every two adjacent power lines 12 are in contact with each other to form a ring, so that the composite optical cable can be compact in structure and convenient to construct and wire under the premise of ensuring the transmission performance of the optical cable assemblies 2. The colors of the three power lines 12 are divided into brown (live wire), blue (zero line) and yellow-green (ground wire) according to the international standard, and the structure adopting the three power lines 12 is more in accordance with the power utilization safety requirement than the structure adopting only two power lines 12 in the prior art. Preferably, the two sets of cable assemblies 2 are co-linear with the center of the body portion 111. Referring to fig. 4, the protective layer 21 is adhesively attached to the hanging wire portion 112, that is, the protective layer 21 is adhesively attached to the hanging wire portion 112 by an adhesive; alternatively, as shown in fig. 5, the protective layer 21 and the suspension wire portion 112 are preferably integrally formed, and in the production process, a mold having the same shape as the protective layer 21, the suspension wire portion 112 and the main body portion 111 may be used for extrusion molding on a sheathing machine, so as to reduce the number of operation steps, improve the production efficiency, and have a stable structure.

In one embodiment, cable assembly 2 further includes strength members 23, and strength members 23 are disposed within protective covering 21. Specifically, the number of the two reinforcing cores 23 is two, the two reinforcing cores 23 are located on two sides of the at least one optical fiber 22, and the two reinforcing cores 23 and the at least one optical fiber 22 are in the same straight line.

In this embodiment, the number of the optical fibers 22 in each group of the optical cable assembly 2 is specifically two, the two strength cores 23 are located on two sides of the two optical fibers 22, the two strength cores 23 and the two optical fibers 22 are located on the same straight line, and the two strength cores 23 and the protective layer 21 jointly play a role in protecting the optical fibers 22. The protective layer 21 is square in shape, so that construction and wiring are more convenient. In the present disclosure, the number of the optical cable assemblies 2 is two, and therefore the number of the strength cores 23 is four in total, and the four strength cores 23 can ensure the tensile strength of the entire composite optical cable, and can fully meet the requirement of laying cables indoors. The reinforcing core 23 may be made of metal material, such as high-strength phosphated steel wire, other non-hydrogen-evolving material, etc.; or with non-metallic materials such as fibre reinforced composites.

Further, in an embodiment, in the cross section of the optical cable assembly 2, the protective layer 21 of the optical cable assembly 2 is provided with two grooves 211, the two grooves 211 are symmetrically arranged relative to the at least one optical fiber 22, and the connection line of the two grooves 211 and the connection line of the two reinforced cores 23 satisfy the vertical condition.

In the present embodiment, the groove 211 is V-shaped, and by providing two grooves 211, the protective layer 21 is easily peeled off, the optical fiber 22 is easily peeled off, and splicing, installation and maintenance are facilitated.

In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the orientation terms is generally based on the orientation or positional relationship shown in the drawings, and is for convenience only to facilitate the description of the present disclosure and to simplify the description, and in the case of not having been stated to the contrary, these orientation terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be taken as limiting the scope of the present disclosure; the terms "inner" and "outer" refer to the interior and exterior of the respective components as they relate to their own contours.

For ease of description, spatially relative terms such as "above … …", "above … …", "above … …", "above", and the like, may be used herein to describe the spatial relationship of one or more components or features to other components or features shown in the figures. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Further, these components or features may also be oriented at 0 at various other angles (e.g., rotated 90 degrees or at other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in other sequences than those illustrated or described herein.

The present disclosure has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the present disclosure to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, and that many variations and modifications may be made in light of the teaching of the present disclosure, all of which fall within the scope of the claimed disclosure. The scope of the disclosure is defined by the appended claims and equivalents thereof.

Claims (10)

1. A composite optical cable, comprising:

the power transmission cable assembly (1) comprises a sheath layer (11) and a plurality of power wires (12) which are arranged in the sheath layer (11) and used for power transmission; and

a cable assembly (2), the cable assembly (2) comprising a protective layer (21) and at least one optical fiber (22) disposed within the protective layer (21);

wherein, the sheath layer (11) is connected with the protective layer (21) or integrally formed.

2. The composite optical cable according to claim 1, wherein the sheath layer (11) includes a body portion (111), the body portion (111) covers the outer peripheries of the plurality of power lines (12), and the body portion (111) and the protective layer (21) are integrally formed.

3. The composite optical cable according to claim 1, wherein the sheath layer (11) includes a main body portion (111) and at least one suspension wire portion (112) integrally formed with an outer periphery of the main body portion (111), the main body portion (111) covers outer peripheries of the plurality of power wires (12), and the protective layer (21) is connected to the suspension wire portion (112).

4. The composite optical cable according to claim 2, wherein the number of the power supply wires (12) is three, the number of the optical cable assemblies (2) is two, two adjacent power supply wires (12) are in contact with each other to form a ring, and the two optical cable assemblies (2) are symmetrically arranged with respect to the center of the body portion (111) in the cross section of the composite optical cable.

5. The composite optical cable according to claim 3, wherein the number of the power wires (12) is three, the number of the optical cable assemblies (2) is two, the protective layers (21) of the two optical cable assemblies (2) are respectively connected with the two hanging wire parts (112) in a one-to-one correspondence manner, the two adjacent power wires (12) are in contact with each other to form a ring shape, and the two optical cable assemblies (2) are symmetrically arranged relative to the center of the body part (111) on the cross section of the composite optical cable.

6. The composite optical cable of claim 3, wherein the protective layer (21) is integrally formed with the messenger section (112).

7. A composite optical cable according to claim 3, wherein the protective layer (21) is glued to the messenger section (112).

8. The composite optical cable of claim 1, wherein the cable assembly (2) further comprises a strength member (23), the strength member (23) being disposed within the protective layer (21).

9. The composite optical cable according to claim 8, wherein the number of the strength cores (23) is two, two strength cores (23) are located on both sides of at least one optical fiber (22), and two strength cores (23) are in the same line with at least one optical fiber (22).

10. The composite optical cable according to claim 9, wherein the protective layer (21) is provided with two grooves (211) in a cross-section of the optical cable assembly (2), the two grooves (211) are symmetrically arranged with respect to at least one optical fiber (22), and a line connecting the two grooves (211) and a line connecting the two strength cores (23) satisfy a perpendicular condition.

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