CN204463850U

CN204463850U - A kind of carrying integrated digital cable waterborne

Info

Publication number: CN204463850U
Application number: CN201520067136.4U
Authority: CN
Inventors: 贾彩云; 李小琴; 肖颖; 徐庭元
Original assignee: Jiangsu Zhongmei Cable Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2015-07-08
Anticipated expiration: 2025-01-30

Abstract

The utility model discloses a kind of carrying integrated digital cable waterborne, comprise cable core, the center of described cable core is provided with the core be made up of four symmetrical digital signal lines, and aramid fiber rope is filled in the gap between digital signal line, the outer copper wire of core is wound around and always shields layer, copper wire is wound around outside total screen layer and extrudes butanone inner sheath, and be provided with power line sandwich layer outside inner sheath, cable core outermost layer extrudes polyurethane outer jacket.The utility model has the features such as good flexibility, radial waterproof, tensile strength, anti-wear performance; Structure of the present utility model is full symmetrical configuration, and magnetic distribution is even, and has the little feature of external diameter compared with non-full symmetrical configuration (namely cable core adopts electric power core in the stranded mode of signal core parallel connection), further reduces the weight of cable.

Description

A kind of carrying integrated digital cable waterborne

Technical field

The utility model relates to electric wire field, refers in particular to a kind of carrying integrated digital cable waterborne.

Background technology

Along with greatly developing of marine industries, various types of cable application is on ship, and the cable that the deck on current ship uses mainly contains the type such as power cable, signal cable, is usually separately laid by the cable of various function and is applied on deck.Cable needs cable weight used above deck is light, and flexibility is good, and pull resistance is strong, water resistance good, and Defend salt fog performance is good.Therefore in actual use, be typically employed in the middle of cable and add steel wire reinforcing layer to realize tensile property by force, in order to ensure Defend salt fog performance, what usually adopt is pvc sheath.

Along with the development of current aquatic products industry, control apparatus equipment waterborne and Communication Development make new advances day by day, common electrical dress cable in stock and communication cable on the water surface through Long-Time Service, affect the insulation resistance of cable on the one hand, 2 pairs of data cables are at the impact easy fracture of the water surface by water wave, affect transfer of data, in order to reach, adaptation is waterborne meets its actual demand, feed cable and signal cable is adopted to carry out composite combined, and highly-flexible is compared in employing, high-tensile aramid fiber rope, as tension, the component of anti-impact force, sheath adopts good waterproof performance, aramid fiber co-extrusion is added in the polyurethane that flexibility is fabulous, form anti-roll around, anti-dilatory, with spreading integrated digital cable

Prior art Problems existing and shortcoming:

(1) existing general mobile occasion power line adopts flexible conductor, because the cross-section of cable is little, monofilament is thin, use procedure for a long time by water wave go out easily broken core, affect useful life, in order to gain in strength use steel wire rope reinforcement, move in water during cable is long-term, cable wire torsional deformation damage cable, and the density 7.8g/cm3 of steel wire, increase the deadweight of cable.

(2) existing power supply line adopts flexible PVC sheath, and easily water suction uses for a long time under water, affects the insulation resistance of cable, becomes large simultaneously, affect the decay in cable transmission process and impedance to digital cable insulation material dielectric constant.

(3) the existing water surface uses the cable that electric equipment power line and multiple twin digital data transmission use, and is separately lay, and adopt built on stilts laying, cost is high.

Utility model content

Technical problem to be solved in the utility model is to overcome prior art defect, provides a kind of lightweight, Stability Analysis of Structures, the good and carrying integrated digital cable waterborne that water preventing ability is good of tensile property.

In order to solve the problems of the technologies described above, the utility model provides a kind of carrying integrated digital cable waterborne, comprise cable core, the center of described cable core is provided with the core be made up of four symmetrical digital signal lines, and aramid fiber rope is filled in the gap between digital signal line, the outer copper wire of core is wound around and always shields layer, and copper wire is wound around outside total screen layer and extrudes butanone inner sheath, be provided with power line sandwich layer outside inner sheath, cable core outermost layer extrudes polyurethane outer jacket.

Further improvement, described digital signal line is made up of two, center twisted pair wire and the Copper Foil sub-shield be extruded in outside twisted pair wire, and fills aramid fiber rope in stranded gap.

Further improvement, described twisted pair wire is made up of stranded conductor and the foaming PE insulating barrier be extruded in outside stranded conductor.

Further improvement, described power line sandwich layer adopts concentric manner to be put together by 4 symmetrical electric power cores and 10 aramid fiber strengthening cores.

Further improvement, described electric power core is made up of conductor 1 and the soft PVC insulating barrier be extruded in outside conductor.

Further improvement, described aramid fiber strengthening core is made up of aramid fiber rope and the soft PVC insulating barrier be extruded in outside aramid fiber rope.

The beneficial effects of the utility model are:

1, protect surrounding in cable gap, twisted signal electric wire and adopt high strength aramid fiber rope, the tensile property reduced, high strength aramid fiber rope on the one hand weight ratio steel wire is light, and tensile strength is stronger thus achieve lightweight, the high situation about taking into account of tensile strength of cable than steel wire on the other hand.

2, the center of cable is signal core, signal core adopts Copper Foil+copper wire to be wound around the shielding mode of shielding, shielding rejection coefficient can be reduced like this, reduce the decay of Signal transmissions, signal core simultaneously after stranding is wound around many copper wires outward and always shields, and can ensure that electromagnetic field that electric power core produces does not affect the transmission of signal in signal core like this.

3, the cable core of cable structure is from inside to outside " signal cable core+inner sheath+electric power cable core ", this structure is full symmetrical configuration, magnetic distribution is even, and compared with non-full symmetrical configuration (namely cable core adopts electric power core in signal core stranded mode in parallel), there is the little feature of external diameter, further reduce the weight of cable.

Protect in the twisted signal cable of 4, cable and adopt fourth silicon protective cover material, both improved the flexibility of cable, simultaneously again can radial waterproof; Displacement can be produced when increasing cable bend, buffering pull-off force simultaneously; Four power line insulation adopt soft polyvinyl chloride Insulation Material, with the flexibility of the electrical property and cable that improve insulation; Displacement can be produced when increasing cable bend, buffering pull-off force simultaneously; Protect the urethane jacket material that have employed and there is good tensile strength and anti-wear performance and resistance to water outward, technique adopts extrusion die extrude, use sheath to be closely extruded on cable core.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated.

As shown in Figure 1, one described in the utility model carrying integrated digital waterborne cable, comprise cable core, the center of described cable core is provided with the core be made up of four symmetrical digital signal lines, and the gap between digital signal line embeds aramid fiber rope 5, the outer copper wire of core is wound around total screen layer 7, copper wire is wound around outside total screen layer 7 and extrudes butanone inner sheath 8, the power line sandwich layer adopting concentric manner to be put together by 4 symmetrical electric power cores and 10 aramid fiber strengthening cores is provided with outside inner sheath 8, in 10 aramid fiber strengthening cores, 4 are had to be that employing two is symmetrical to two modes, 6 are had to be that employing three is symmetrical to three modes, cable core outermost layer extrudes polyurethane outer jacket 9.

Described digital signal line is made up of two, center twisted pair wire and the Copper Foil sub-shield 6 be extruded in outside twisted pair wire, and fills aramid fiber rope 5 in stranded gap; Wherein twisted pair wire is made up of stranded conductor 3 and the foaming PE insulating barrier 4 be extruded in outside stranded conductor 3.

Described aramid fiber strengthening core is made up of aramid fiber rope 5 and the soft PVC insulating barrier 2 be extruded in outside aramid fiber rope.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement under the prerequisite not departing from the utility model principle, these improvement also should be considered as protection range of the present utility model.

Claims

1. a carrying integrated digital cable waterborne, comprise cable core, it is characterized in that: the center of described cable core is provided with the core be made up of four symmetrical digital signal lines, and aramid fiber rope (5) is filled in the gap between digital signal line, the outer copper wire of core is wound around and always shields layer (7), copper wire is wound around always to shield outside layer (7) and extrudes butanone inner sheath (8), and inner sheath is provided with power line sandwich layer outside (8), and cable core outermost layer extrudes polyurethane outer jacket (9).

2. carrying integrated digital cable waterborne according to claim 1, is characterized in that: described digital signal line is made up of two, center twisted pair wire and the Copper Foil sub-shield (6) be extruded in outside twisted pair wire, and fills aramid fiber rope (5) in stranded gap.

3. carrying integrated digital cable waterborne according to claim 2, is characterized in that: described twisted pair wire is by stranded conductor (3) and be extruded in stranded conductor (3) foaming PE insulating barrier (4) outward and form.

4. carrying integrated digital cable waterborne according to claim 1, is characterized in that: described power line sandwich layer adopts concentric manner to be put together by 4 symmetrical electric power cores and 10 aramid fiber strengthening cores.

5. carrying integrated digital cable waterborne according to claim 4, is characterized in that: described electric power core is made up of conductor (1) and the soft PVC insulating barrier (2) be extruded in outside conductor.

6. carrying integrated digital cable waterborne according to claim 5, is characterized in that: described aramid fiber strengthening core is made up of aramid fiber rope (5) and the soft PVC insulating barrier (2) be extruded in outside aramid fiber rope.