CN211294724U

CN211294724U - Mixed cable

Info

Publication number: CN211294724U
Application number: CN202020241763.6U
Authority: CN
Inventors: 陈团结; 邱怀兵
Original assignee: Rosenberger Shanghai Technology Co Ltd
Current assignee: Rosenberger Shanghai Technology Co Ltd; Rosenberger Shanghai Communication Technology Co Ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-08-18
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a hybrid cable, including the mixed unit of photoelectricity and wrap up the oversheath outside the mixed unit of photoelectricity, the mixed unit of photoelectricity includes mixed electrical unit and light unit, and electrical unit includes power supply line and recoverable line, and the power supply line includes power supply conductor and wraps up the insulating protective layer outside power supply conductor, and the recoverable line is naked conductor. The utility model discloses mixed cable's return wire is bare conductor, has satisfied required low-cost, the easy installation of communication equipment development, can guarantee performance requirements such as excellent simultaneously again.

Description

Mixed cable

Technical Field

The utility model relates to a photoelectric mixed cable.

Background

At present, optical cables and electric cables are widely used in various fields, but the existing optical cables or electric cables have a defect that only optical signals or electric signals can be transmitted respectively. When many occasions need to transmit optical signals and electric signals simultaneously, the optical cables and the electric cables can only be accessed respectively, and corresponding equipment needs to be added. Therefore, the system is complicated, bulky, and not easy to miniaturize and integrate the system, and also increases much cost. Some opto-electric hybrid cables have emerged that are capable of transmitting both optical and electrical signals.

However, in the conventional hybrid cable, when the direct current is transmitted, each current loop transmits the current through two insulated wires. When a plurality of current loops are included in the hybrid cable, a large number of wires are required, which results in a large outer diameter of the hybrid cable, and further causes the following problems: 1. the installation is difficult; 2. the packaging volume is large, and the corresponding transportation cost is high; 3. the current loops are multiple, and the corresponding loops need to be distinguished by using different colors or digital code spraying marks, otherwise, the corresponding loops are not easy to distinguish; 4. the whole cable has more material consumption and high cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a low cost, easy installation and excellent performance's mixed cable.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hybrid cable, include the mixed unit of photoelectricity and wrap up in the outer oversheath of mixed unit of photoelectricity, the mixed unit of photoelectricity includes mixed power supply unit and optical unit, power supply unit includes power supply line and return line, the power supply line include power supply conductor and wrap up in the outer insulating protective layer of power supply conductor, return line is naked conductor.

Preferably, the power supply unit includes a plurality of power supply lines, and the bare conductor is formed by twisting a plurality of second conductors together.

Preferably, the light unit comprises one or more pairs of optical cores.

Preferably, the hybrid cable further comprises a metal armor wrapped outside the photoelectric hybrid unit, the outer sheath is wrapped outside the metal armor, and the metal armor is electrically connected with the bare conductor.

Preferably, the hybrid cable further comprises a metal wrapping tape located between the photoelectric hybrid unit and the metal armor, the metal wrapping tape wraps the photoelectric hybrid unit, the metal armor wraps the metal wrapping tape, and the metal wrapping tape is electrically connected with the bare conductor.

Preferably, the metal armor is wrapped outside the photoelectric mixing unit by a metal wire along the radial direction or the axial direction of the photoelectric mixing unit.

Preferably, the metal armor is a corrugated armor or an embossed armor.

Preferably, the hybrid cable further comprises an opening cable disposed on the metal armor.

Preferably, the power supply conductor is formed by twisting a plurality of first conductors together.

Preferably, the hybrid cable further comprises a filler filled between the metal sheathing tape and the photovoltaic hybrid unit.

The utility model has the advantages that:

1. all current loops of the hybrid cable share one return line, and under the condition that the current loops have the same number, the outer diameter of the hybrid cable is correspondingly reduced, the weight is reduced, and further the transportation cost and the packaging cost of the hybrid cable are reduced.

2. The return wire adopts a bare conductor, and does not need to extrude an insulating material, so that the process flow is reduced.

3. Metal tape and metal armour may be utilised to carry return current in the current loop with the bare conductor.

4. The production and processing technology of the mixed cable is simplified, and the production cost of the mixed cable is reduced.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the hybrid cable of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a side view schematic of the structure of FIG. 1;

fig. 4 is a schematic perspective view of another embodiment of the hybrid cable of the present invention;

FIG. 5 is a schematic cross-sectional view of FIG. 4;

fig. 6 is a side view schematic of the structure of fig. 4.

Reference numerals:

10. the photoelectric hybrid unit comprises a photoelectric hybrid unit 11, a power supply line 111, a power supply conductor 112, an insulating protective layer 12, a light unit 121, an optical fiber core 13, a bare conductor 20, an outer sheath 30, a metal wrapping tape 40 and a metal armor.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

Referring to fig. 1 and 6, the hybrid cable disclosed in the present invention includes a photoelectric hybrid unit 10, a metal tape 30 wrapped outside the photoelectric hybrid unit 10, a metal sheath 40 wrapped outside the metal tape 30, and an outer sheath 20 wrapped outside the metal sheath 40. The photoelectric mixing unit 10 includes a mixed power supply unit and a light unit 12. The optical unit 12 may be an optical cable or a network cable.

The power supply unit includes nine power supply lines 11 and one return line, and the nine power supply lines 11 and the one return line form nine current loops. The power supply line 11 includes a power supply conductor 111 and an insulating protective layer 112 covering the power supply conductor 111. The power supply conductor 111 is formed by twisting a plurality of first conductors together. The return line is a bare conductor 13, and the bare conductor 13 is formed by twisting a plurality of second conductors together. The optical unit 12 may include one or more pairs of optical fiber cores 121, the specification of the optical fiber cores 121 may be according to the customer's requirement, and may be single mode or multimode, and the number of the optical fiber cores 121 may also be determined according to the customer's requirement. The power supply line 11 serves as the transmission anode for all current loops in the hybrid cable, and the size of the power supply conductor 111 can be selected according to the customer's requirements and can be 12AWG (4 mm)²)，10AWG(6mm²)，8AWG(10mm²) And the material and thickness of the insulating protection layer 112 are required to meet the voltage requirement of 0.6/1 KV. The bare conductor 13, as a return line (i.e., a transmission negative electrode) of all current loops in the hybrid cable, may be formed by one second conductor, or may be formed by twisting a plurality of second conductors, in this embodiment, the bare conductor 13 is formed by twisting a plurality of second conductors. The return wire directly adopts the bare conductor 13, does not need to extrude insulating materials, reduces the process flow of the mixed cable, reduces the volume of the mixed cable, and saves the cost.

In other embodiments, the number of the power supply lines 11 is not limited, and may be one or more; the number of the light units 12 is not limited, and may be one or more.

The photoelectric mixing unit 10 is also wrapped with a metal wrapping tape 30, the metal wrapping tape 30 is electrically connected with the bare conductor 13 and transmits return current in a current loop together, and the metal wrapping tape 30 can play a drainage role and also can prevent the mixed cable from loosening after cabling.

The space between the metal wrapping tape 30 and the photoelectric mixing unit 10 may be filled with a filler (not shown), the filler may play a role in ensuring the roundness of the mixed cable after cabling, and the filler may be filled according to actual needs or not provided during implementation.

The metal wrapping tape 30 is wrapped with a metal armor 40, the metal armor 40 is wrapped outside the metal wrapping tape 30 in a radial or axial direction of the photoelectric mixing unit by metal wires, and the metal wires can be aluminum wires, magnesium wires or copper wires; the metal sheath 40 may also be a metal tape or a plastic tape; the metal armor 40 may also be a corrugated armor or an embossed armor, and the material of the corrugated armor or the embossed armor may be an aluminum tape or a copper tape, etc. The metallic sheath 40 and the bare conductor 13 are electrically connected, together transmitting a return current in a current loop. On the other hand, the metal sheath 40 also serves to reinforce the mechanical strength of the hybrid cable, thereby protecting the hybrid cable from external mechanical forces, chemical gas corrosion, and the like. As shown in fig. 1 to 3, the hybrid cable structure is a schematic diagram of a metal armor 40 that radially wraps a photoelectric hybrid unit with metal wires; as shown in fig. 4 to 6, the hybrid cable structure is schematically illustrated in which the metal armor 40 axially wraps the optical-electrical hybrid unit with a metal wire.

The metal armor 40 may further be provided with a cable opener (not shown) for stripping the hybrid cable, thereby reducing the stripping difficulty of the hybrid cable. The material of the mooring rope can be aramid fiber or a steel wire and the like.

The outer sheath 20 is wrapped around the metal sheath 40, and the material thereof may be preferably an outdoor insulation material with flame resistance and ultraviolet resistance, such as PVC (Polyvinyl chloride), PE (polyethylene), or LSZH (low smoke halogen-free flame retardant polyolefin material).

The utility model discloses the return line of mixing the cable is bare conductor 13, and bare conductor 13 is arranged in the return current in the transmission current return circuit, and in addition, bare conductor 13 also can transmit return current with the common transmission of conductive objects such as metal belting 30, metal armor 40. By the design, the outer diameter of the mixed cable is correspondingly reduced, the weight is reduced, the transportation cost and the packaging cost are reduced, the production and processing technology is simplified, and the requirements of low cost, easiness in installation, excellent performance and the like required by communication equipment development are met.

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.

Claims

1. The utility model provides a hybrid cable, its characterized in that, include the mixed unit of photoelectricity and wrap up in the outer oversheath of mixed unit of photoelectricity, the mixed unit of photoelectricity includes mixed power supply unit and optical unit, power supply unit includes power supply line and return line, the power supply line include the power supply conductor and wrap up in the outer insulating protective layer of power supply conductor, the return line is bare conductor.

2. The hybrid cable according to claim 1, wherein the power supply unit comprises a plurality of power supply wires, the bare conductor being formed by a plurality of second conductors twisted together.

3. The hybrid cable of claim 1, wherein the optical unit includes one or more pairs of optical cores.

4. The hybrid cable of claim 1, further comprising a metal armor wrapped around the optoelectronic hybrid unit, wherein the outer jacket is wrapped around the metal armor, and wherein the metal armor is electrically connected to the bare conductor.

5. The hybrid cable of claim 4, further comprising a metal wrap positioned between the optoelectronic hybrid unit and the metal armor, the metal wrap surrounding the optoelectronic hybrid unit, the metal armor surrounding the metal wrap, the metal wrap being electrically connected to the bare conductor.

6. The hybrid cable according to claim 4, wherein said metallic sheath is wrapped by a metallic wire around said photovoltaic hybrid unit in a radial or axial direction of said unit.

7. The hybrid cable of claim 4, wherein the metallic armor is a corrugated armor or an embossed armor.

8. The hybrid cable of claim 4, further comprising an opening cable disposed on the metal armor.

9. The hybrid cable according to claim 1, wherein said power supply conductor is formed by a plurality of first conductors twisted together.

10. The hybrid cable of claim 5, further comprising a filler material filled between the metal sheathing tapes and the photovoltaic hybrid unit.