CN104882218A

CN104882218A - Light mobile network cable for supporting ship computer

Info

Publication number: CN104882218A
Application number: CN201510255250.4A
Authority: CN
Inventors: 贾彩云; 陈明; 徐海敏
Original assignee: Jiangsu Zhongmei Cable Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2015-05-19
Filing date: 2015-05-19
Publication date: 2015-09-02

Abstract

The invention discloses a light mobile network cable for supporting a ship computer. The cable comprises a cable core, the cable core is formed by the pair twisting of four 2-wire cores employing the pitch no greater than 10 times, reinforced aramid fiber ropes are embedded into the center and edge gaps of the cable core, the outside of the cable core is extruded with a shielding layer, the outside of the shielding layer is extruded with a polyether type polyurethane outer sheath, and the outside of an edge of the polyether type polyurethane outer sheath is connected with a reinforced aramid fiber core via a polyether type polyurethane connecting piece. According to the cable, the pulling-resistant performance is very excellent, the shielding effect is good, the structure is tight, the external diameter of the cable is small, the cable is flexible, the weight is low, and the cable is applicable to be used in small space in ships.

Description

A kind of light-duty carrying naval vessel computer mobile network's cable

Technical field

The present invention relates to and join field of cable technology, particularly relate to a kind of light-duty carrying naval vessel computer mobile network's cable.

Background technology

Together with the cable laying that the computer network cable that naval vessel uses and usual power cable etc. have other functions, its structure is comparatively single, and conductor adopts single core soft copper, and insulation adopts PE insulation, and by core pair twist stranding, outside extrudes PVC sheath.Because ship on ocean is larger by wave effect, cable in board there will be drag, draw, the environment such as pressure, in order to ensure that computer network cable can normally use under so severe operating mode, online core inner increases a steel wire usually, thus ensures the anti-dilatory performance of cable.

Prior art Problems existing and shortcoming

(1) little owing to calculating the general cross-sectional area of conductor of cable, the conductor adopted is a soft copper, soft copper be in for a long time bending, drag, draw, in the environment for use of pressing, easily make distortion of the cable, disconnected core, affect the transmission of signal, this kind of single-core cable does not shield usually in addition, is easily subject to the impact of external electromagnetic field thus affects use.

(2) be increase a steel wire in cable core inside when using in the loaded state, steel wire, under Long-term bend reverses environment, due to the effect of stress, uses steel wire distortion, stabs insulation, affect the useful life of cable, and too increase the deadweight of cable.

Summary of the invention

It is poor to the object of the invention is to provide a kind of shield effectiveness solving existing ruggedized cable, Heavy Weight, tensile property light-duty carrying naval vessel computer mobile network's cable that is poor, the easily problem of disconnected core.

One of the present invention light-duty carrying naval vessel computer mobile network's cable, comprises cable core, and described cable core adopts the pitch pair twist being not more than 10 times to form by four to 2 cores, and embeds reinforcement aramid fiber rope at the center and peripheral gap location of cable core respectively; Outside cable core, extrude screen, outside screen, extrude EU oversheath, by EU connector connection reinforcement aramid fiber core outside EU oversheath edge.

Further improvement, described adopts 6-8 times of twisting pitch to carry out pair twist to 2 cores by two insulated wire cores to form.

Further improvement, described insulated wire cores closely extrudes ultra-thin fluoroplastic insulation layer outward by conductor and conductor to form.

Further improvement, described reinforcement aramid fiber core is by strengthening aramid fiber rope and be extruded in the EU oversheath strengthening aramid fiber rope forming.

Further improvement, described conductor adds one or more aramid yarn by many minimum soft copper silks and makes in bundle strand process.

Compared with prior art, beneficial effect of the present invention is:

1, in order to the tensile property of cable, there is not the phenomenon of disconnected core simultaneously, it is conductor that cable have employed many superfine soft copper silks, adds the aramid yarn (aramid yarns of higher than intensity of steel wire 4 times) of one or more high strength, add the pull-off force of cable conductor and cable core in bundle strand process.Its insulation adopts dielectric constant less than 1.8, insulation resistivity is greater than 1017 Ω .m tensile strength and is greater than 27MPa fluoroplastic insulation, under the requirement meeting cable electrical property and transmission performance, reduce insulation thickness, increase the insulation property of cable and counter-bending and resistance to torsion.

2, outside cable core, utilize a dowel to drag a high-tensile aramid fiber rope.For cable hook, making on cable can suspension hook weight, does not affect the flexibility of whole cable simultaneously.

3, in order to reduce the problem of Signal transmissions decay and cross-talk, insulated wire cores adopts 6-8 times of twisting pitch to carry out pair twist when stranded, and inner four groups of pitches to 2 cores are not identical, and the magnetic distribution so often organized is inconsistent, solves the problem of cross-talk in signals transmission.

4, have tensile property very outstanding, shield effectiveness is good, and close structure, the outside diameter of cable are little, flexibility, the advantage such as lightweight, is suitable for little space, naval vessel and uses.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Embodiment

The light-duty carrying naval vessel of one as shown in Figure 1 computer mobile network's cable, this construction of cable is: many minimum soft copper silks add one or more aramid yarn and make conductor 1 in bundle strand process, extrude the ultra-thin fluoroplastic insulation layer 2 of one deck make insulated wire cores at conductor 1 intimate surface; Adopt 6-8 times of twisting pitch to carry out pair twist two pairs of insulated wire cores and make one group to 2 cores, adopt the pitch being not more than 10 times to carry out stranding by 4 to 2 cores.Embed at center and peripheral gap location respectively in cabling process and strengthen aramid fiber rope 3, screen 4 is woven with again at skin, finally outside screen 4, extrude EU oversheath 6, by EU connector 7 connection reinforcement aramid fiber core outside EU oversheath 6 edge, described reinforcement aramid fiber core is by strengthening aramid fiber rope 5 and be extruded in the EU oversheath 6 strengthening aramid fiber rope forming.

Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.

Claims

1. light-duty carrying naval vessel computer mobile network's cable, comprises cable core, it is characterized in that: described cable core adopts the pitch pair twist being not more than 10 times to form by four to 2 cores, and embeds reinforcement aramid fiber rope at the center and peripheral gap location of cable core respectively; Outside cable core, extrude screen, outside screen, extrude EU oversheath, by EU connector connection reinforcement aramid fiber core outside EU oversheath edge.

2. according to the light-duty carrying naval vessel computer mobile network's cable described in claim 1, it is characterized in that: described adopt 6-8 times of twisting pitch to carry out pair twist to 2 cores by two insulated wire cores to form.

3. according to the light-duty carrying naval vessel computer mobile network's cable described in claim 1, it is characterized in that: described insulated wire cores closely extrudes ultra-thin fluoroplastic insulation layer outward by conductor and conductor to form.

4. according to the light-duty carrying naval vessel computer mobile network's cable described in claim 1, it is characterized in that: described reinforcement aramid fiber core is by strengthening aramid fiber rope and be extruded in the EU oversheath strengthening aramid fiber rope forming.

5. according to the light-duty carrying naval vessel computer mobile network's cable described in claim 3, it is characterized in that: described conductor 1 adds one or more aramid yarn by many minimum soft copper silks and makes in bundle strand process.