CN219393024U - Photoelectric composite cable - Google Patents

Abstract

The utility model discloses a photoelectric composite cable. The photoelectric composite cable comprises a control unit, a plurality of power units, an inner sheath, a reinforcing layer and an outer sheath; the control unit and the power units are surrounded by an inner sheath and positioned at the center, the inner sheath is externally wrapped by a reinforcing layer, and the reinforcing layer is externally wrapped by an outer sheath; the control unit comprises an optical fiber element positioned at the center, a control wire core unit arranged around the optical fiber element, a metal shielding layer surrounding the optical fiber element and the control wire core unit, and a control unit sheath layer surrounding the metal shielding layer. The composite cable of the utility model solves the problem that the optical fiber element may be damaged.

Description

Photoelectric composite cable

Technical Field

The utility model relates to a photoelectric composite cable, and belongs to the field of cables.

Background

The ship berthing port is powered by domestic electricity, and because the ship auxiliary engine generator generally burns heavy oil or diesel oil, a large amount of pollution gas can be discharged to the atmosphere, the power supply of the ship fuel oil generator is gradually changed into the shore power supply. The optical cable and the cable used in the general shore power system are manufactured and laid separately, and the port environment is moist and the salt fog is heavier, so the optical cable and the cable all need to have weather resistance, salt fog resistance, hydrolysis resistance, wear resistance and the like. However, many cables are laid and arranged difficultly, the risk of damage exists, the maintenance difficulty is increased, the optical fiber components cannot be well protected, and the hidden danger of broken network exists.

The Chinese utility model bulletin No. CN209912525U discloses a marine shore power cable suitable for a shore power system, wherein the cable comprises a main wire core, a ground wire core, a control wire core and an optical cable core which are stranded to form a cable core; the cable core is sequentially coated with an inner sheath, a braiding layer and an outer sheath; the main sinle silk has three, and the structure of every main sinle silk is: the device comprises a main line core conductor, a first wrapping layer, a shielding layer, a main line core insulating layer and an insulating shielding layer from inside to outside in sequence; the structure of the ground wire core is as follows: the ground wire core conductor and the ground wire core semi-conductive layer are sequentially arranged from inside to outside; the structure of the control wire core is as follows: a plurality of control core insulating layers are extruded and wrapped, and a control wire core of the metal shielding layer is braided outside the insulating layers and surrounds the central reinforcing member, and then a wrapping layer is wrapped outside the control wire core; wrapping a control core sheath around the wrapping layer; the structure of the optical cable core is as follows: the optical cable is formed by twisting a plurality of sleeves for accommodating optical fibers around a central reinforcing member and then coating an optical cable sheath; each main wire core in the cable core is isolated by a filler. The optical cable core in the marine shore power cable adopts various protective layers, and the material cost and the laying cost are increased.

Disclosure of Invention

The present utility model aims to provide an optoelectronic composite cable which can solve the problem that optical fiber elements may be damaged.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an optoelectronic composite cable comprises a control unit, a plurality of power units, an inner sheath, a reinforcing layer and an outer sheath which extend longitudinally; the power unit is structurally characterized in that the control unit and the power units are surrounded by an inner sheath and positioned at the center when seen from a section vertical to the longitudinal direction, the inner sheath is externally wrapped by a reinforcing layer, and the reinforcing layer is externally wrapped by an outer sheath;

the control unit includes an optical fiber element at a central position and a control core unit disposed around the optical fiber element, and a metal shielding layer surrounding the optical fiber element and the control core unit and a control unit sheath layer surrounding the metal shielding layer, as viewed in a cross section perpendicular to the longitudinal direction.

Therefore, the optical fiber element is arranged at the inner center of the control unit, and the protection of the control wire core unit, the metal shielding layer and the control unit sheath layer is realized, so that the problem that the optical fiber part is possibly damaged is solved.

In addition, the optical fiber element is arranged in the center of the control unit, so that the structure is more compact, the wiring space is saved, and the material cost and the laying cost of the photoelectric composite cable are effectively reduced.

According to the embodiment of the utility model, the utility model can be further optimized, and the following technical scheme is formed after the optimization:

in one preferred embodiment, a tension element is provided between the control unit and the plurality of power units. Therefore, the tensile element is filled in the center of the cable, and the tensile performance of the photoelectric composite cable is improved.

In one preferred embodiment, the control wire core unit has at least three groups, and the optical fiber element is located at a central position of the control wire core unit.

In one of the preferred embodiments, the power unit comprises a power core and a power core insulation layer wrapped around the outside of the power core, as seen in a cross section perpendicular to the longitudinal direction.

In one of the preferred embodiments, the control wire core unit comprises a control wire core and a control wire core insulation layer wound around the outer side of the control wire core, seen in a cross section perpendicular to the longitudinal direction.

In one preferred embodiment, the sheath layer, the inner sheath and the outer sheath are all made of chlorinated polyethylene rubber.

In one preferred embodiment, the reinforcing layer is made of aramid yarns. Therefore, the aramid yarn is adopted between the inner sheath and the outer sheath for knitting and reinforcing, and the tensile property of the photoelectric composite cable is improved.

Compared with the prior art, the utility model has the beneficial effects that:

1. the photoelectric composite cable of the utility model has the advantages that the optical fiber element is arranged at the center of the control unit, the structure is compact, and the wiring space is saved.

2. The photoelectric composite cable of the utility model arranges the optical fiber element at the center of the control unit, can effectively protect the optical fiber element, and solves the problem that the optical fiber element is easy to be damaged.

3. The photoelectric composite cable effectively reduces the material cost and the laying cost.

Drawings

Fig. 1 is a schematic structural view of an optoelectronic composite cable.

In the drawings

1-control unit, 11-optical fiber element, 12-control wire core unit, 121-control wire core, 122-control wire core insulating layer, 13-control unit sheath layer, 14-metal shielding layer, 2-power unit, 21-power wire core, 22-power wire core insulating layer, 3-tensile element, 4-inner sheath, 5-reinforcing layer and 6-outer sheath.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

The photoelectric composite cable of the embodiment is a shore power cable, belongs to a low-voltage cable with rated voltage of 0.6/1KV, and as shown in fig. 1, the cable of the embodiment comprises a cable core, and an inner sheath 4, a reinforcing layer 5 and an outer sheath 6 are sequentially coated outside the cable core.

On the vertical longitudinal cross section, the cable core comprises three groups of power units 2 and one group of control units 1, the center of the cable core is provided with a tensile element 3, and the power units 2 and the control units 1 are filled with adhesive tapes after being cabled. The control unit 1 comprises an optical fiber element 11, four groups of control wire core units 12 and a control unit sheath layer 13, wherein the optical fiber element 11 is arranged at the center of the four groups of control wire core units 12. The optical fiber element 11 and the control wire core unit 12 are filled with adhesive tapes and then are coated with the control unit sheath layer 13 after being cabled.

The power unit 2 comprises a power wire core 21, and a power wire core insulating layer 22 is wrapped on the outer side of the power wire core 21. The control wire core unit 12 comprises a control wire core 121, a control wire core insulating layer 122 is extruded outside the control wire core 121, and a metal shielding layer 14 is woven outside the control wire core insulating layer 122. After the optical fiber element 11 is cabled with the control wire core unit 12 woven with the metal shielding layer 14, the outer side of the optical fiber element is coated with the sheath layer 13.

The power wire core 21 and the control wire core 121 are both made of soft tin-plated copper conductors, and the power wire core insulating layer 22 and the control wire core insulating layer 122 are both made of ethylene-propylene rubber materials. The control unit sheath layer 13, the inner sheath 4 and the outer sheath 6 are all made of chlorinated polyethylene rubber materials, and the reinforcing layer 7 is woven and reinforced by aramid yarn materials, so that the tensile property of the shore power cable is improved.

The foregoing examples are set forth in order to provide a more thorough description of the present utility model, and are not intended to limit the scope of the utility model, since modifications of the present utility model, in which equivalents thereof will occur to persons skilled in the art upon reading the present utility model, are intended to fall within the scope of the utility model as defined by the appended claims.

Claims (7)

1. An optoelectronic composite cable comprises a control unit (1) extending longitudinally, a plurality of power units (2), an inner sheath (4), a reinforcing layer (5) and an outer sheath (6); the control unit (1) and the power units (2) are wrapped by an inner sheath (4) and are positioned in the center when seen from a section vertical to the longitudinal direction, the inner sheath (4) is wrapped by a reinforcing layer (5), and the reinforcing layer (5) is wrapped by an outer sheath (6);

the control unit (1) comprises an optical fiber element (11) at a central position and a control wire core unit (12) arranged around the optical fiber element (11), as well as a metal shielding layer (14) surrounding the optical fiber element (11) and the control wire core unit (12) and a control unit sheath layer (13) surrounding the metal shielding layer (14), as seen in a section perpendicular to the longitudinal direction.

2. The photoelectric composite cable according to claim 1, characterized in that a tensile element (3) is arranged between the control unit (1) and the plurality of power units (2).

3. The photoelectric composite cable according to claim 1, characterized in that the control core unit (12) has at least three groups, and the optical fiber element (11) is located at a central position of the control core unit (12).

4. The photoelectric composite cable according to claim 1, characterized in that the power unit (2) comprises a power core (21) and a power core insulation layer (22) wrapped around the outside of the power core (21) as seen in a cross section perpendicular to the longitudinal direction.

5. The photoelectric composite cable according to claim 1, characterized in that the control core unit (12) includes a control core (121) and a control core insulation layer (122) wrapped around an outer side of the control core (121) as seen in a cross section perpendicular to a longitudinal direction.

6. The photoelectric composite cable according to any one of claims 1 to 5, characterized in that the sheath layer (13), the inner sheath (4) and the outer sheath (6) are all made of chlorinated polyethylene rubber.

7. The photoelectric composite cable according to any one of claims 1 to 5, wherein: the reinforcing layer (5) is made of aramid yarns.