CN203444783U

CN203444783U - Low loss composite data soft cable

Info

Publication number: CN203444783U
Application number: CN201320362568.9U
Authority: CN
Inventors: 陈虹校; 金春敏; 陆荷英; 王存良; 叶亚军
Original assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Current assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2014-02-19
Anticipated expiration: 2023-06-24

Abstract

This utility model discloses a low loss composite data soft cable, comprising an optical fiber unit constituted by four communication optical fibers within a loose sleeving, a first pair of communication twisted lines and a second pair of communication twisted line which are formed by four first copper conductive lines stranded in pairs and having insulation layers for information communication, a first pair of power twisted lines and a second pair of power twisted lines which are formed by four second copper conductive lines wrapped by insulation layers and stranded in pairs, and a pentagon frame. The surface of the frame of the pentagon is covered by a metal layer. The aluminum layer of an aluminum foil layer is internally positioned so as to form an electric contact with the metal layer of the pentagon frame. A steel wire is tightly lapped on the outer surface of the aluminum foil layer to form an armor layer. A sheath layer wraps the outer surface of the armor layer. The low loss composite data soft cable can effectively prevent the external electromagnetic interference from going into the cable while preventing the internal signals from radiation to affect operation of other equipment, so that the return loss, characteristic impedance and crosstalk attenuation are greatly improved.

Description

Low-loss complex data flexible cable

Technical field

The utility model relates to a kind of flexible cable, relates in particular to a kind of low-loss complex data flexible cable.

Background technology

The structure of common single type telecommunication cable: its primary structure of cable is that copper conductor extrudes one deck insulation outward, stranding after single line pair twist, outside adopts the structure of polyolefin oversheath, said structure limitation due to telecommunication cable, in exterior finish distributing system, automated detection system, cause that stretching is large, quality is unstable, it is loaded down with trivial details to connect up, unreliable and affect serviceability.

Summary of the invention

The utility model provides a kind of low-loss complex data flexible cable, and this low-loss complex data flexible cable improves the surplus of communication cable cross-talk index 1% effectively, has even also improved the 1dB surplus of loss, increases by 1.5% stability of characteristic impedance; Also effectively prevent that external electromagnetic interference from entering cable, also stop internal signal to radiate, disturb the work of miscellaneous equipment, improved greatly return loss, characteristic impedance and the crosstalk attenuation of digital cable simultaneously simultaneously.

For achieving the above object, the technical solution adopted in the utility model is: a kind of low-loss complex data flexible cable, comprising: the fiber unit being formed by four telecommunication optical fibers that are positioned at loose sleeve pipe, four the first copper conductors that are coated with insulating barrier between two stranded form as the first communication twisted wire of information communication to, second communication twisted wire to, four the second copper conductors that are coated with insulating barrier between two stranded form as the first electric power twisted wire of electric power transfer to, the second electric power twisted wire to pentagon star frame; Described pentagon star frame is followed successively by the first cavity, the second cavity, the 3rd cavity, the 4th cavity and the 5th cavity in the counterclockwise direction, described pentagon star frame plated surface is covered with metal level, described fiber unit, the first communication twisted wire to, second communication twisted wire to, the first electric power twisted wire to, the second electric power twisted wire to laying respectively in described the first cavity, the second cavity, the 3rd cavity, the 4th cavity and the 5th cavity; The coated described fiber unit, first of one aluminium foil layer being formed with PET film by aluminium lamination communicate by letter twisted wire to, second communication twisted wire to, the first electric power twisted wire to, the second electric power twisted wire to pentagon star frame, thereby the aluminium lamination of described aluminium foil layer is positioned at inner side, electrically contact with the metal level formation of pentagon star frame; One steel wire is closely wrapped forms armour in described aluminium foil layer outer surface, and a restrictive coating is coated on described armour outer surface;

Described the first communication twisted wire is less than described the first electric power twisted wire to, second electric power twisted wire centering the second copper conductor diameter to, second communication twisted wire centering the first copper conductor diameter.

In technique scheme, further improve technical scheme as follows:

1. in such scheme, the right pitch of described the first communication twisted wire is 15 ~ 15.5mm, the right pitch of described second communication twisted wire is 13.5 ~ 13.9mm, and the right pitch of described the first electric power twisted wire is 14.2 ~ 14.6mm, and the right pitch of described the second electric power twisted wire is 12.7 ~ 13.1mm.

2. in such scheme, described the first communication twisted wire is 0.5mm to, second communication twisted wire centering the first copper conductor diameter, and described the first electric power twisted wire is 0.5mm to, second electric power twisted wire centering the second copper conductor sectional area ².

Because technique scheme is used, the utility model compared with prior art has following advantages:

1. the utility model low-loss complex data flexible cable, adopt steel wire as main stretch, adopt star-like skeleton as main anti-interference element, the hybrid architecture of cable and optical cable, corrosion resistant polyolefine material, have not easy to crack, meet that water does not decompose, stretch-proof, the feature such as corrosion-resistant, greatly increased cable because of environment for use is special, the mutual interference of signal phase affects serviceability ability.

2. the utility model low-loss complex data flexible cable, have the advantages that to substitute traditional single type telecommunication cable, its transmission characteristic can meet corresponding transmission requirement, because cable has adopted the new structure of anti-interference and stretch-proof, effectively improved the mutual interference of signal phase, environment for use is complicated and impact construction wiring and the problem used; Restrictive coating chance water due to cable does not decompose simultaneously, greatly facilitating emergency maintenance, improve maintenance efficiency and repair quality, is a kind of new product with development prospect, the performance index of product meet products standards requirement, have obvious economic benefit and promotional value.

3. the utility model low-loss complex data flexible cable, its pentagon star frame plated surface is covered with metal level, thereby the aluminium lamination of aluminium foil layer is positioned at inner side to be electrically contacted with the metal level formation of pentagon star frame, form five shielding closed inner chambers, effectively prevent that external electromagnetic interference from entering cable, also stop internal signal to radiate, disturb the work of miscellaneous equipment, improved greatly return loss, characteristic impedance and the crosstalk attenuation of digital cable simultaneously.

Accompanying drawing explanation

Accompanying drawing 1 is the utility model low-loss complex data soft cable structure schematic diagram.

In above accompanying drawing: 1, loose sleeve pipe; 2, telecommunication optical fiber; 3, fiber unit; 4, the first copper conductor; 41, the first communication twisted wire pair; 42, second communication twisted wire pair; 5, the second copper conductor; 51, the first electric power twisted wire pair; 52, the second electric power twisted wire pair; 6, pentagon star frame; 61, the first cavity; 62, the second cavity; 63, the 3rd cavity; 64, the 4th cavity; 65, the 5th cavity; 7, metal level; 8, aluminium foil layer; 81, aluminium lamination; 82, PET film; 9, steel wire; 10, restrictive coating; 111, insulating barrier; 112, insulating barrier.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described:

Embodiment 1: a kind of low-loss complex data flexible cable, comprising: the first copper conductor 4 that the fiber unit that is comprised of four telecommunication optical fibers 2 that are positioned at loose sleeve pipe 13, four are coated with insulating barrier 111 is stranded between two to be formed as the first communication twisted wire of information communication 41, second communication twisted wire is to 42, four the second copper conductors 5 that are coated with insulating barrier 112 stranded formation as the first electric power twisted wire of electric power transfer the 51, second electric power twisted wire 52 and pentagon star frame 6 between two; Described pentagon star frame 6 is followed successively by the first cavity 61, the second cavity 62, the 3rd cavity 63, the 4th cavity 64 and the 5th cavity 65 in the counterclockwise direction, described pentagon star frame 6 plated surfaces are covered with metal level 7, described fiber unit 3, the first communication twisted wire to 41, second communication twisted wire lays respectively in described the first cavity 61, the second cavity 62, the 3rd cavity 63, the 4th cavity 64 and the 5th cavity 65 52 the 51, second electric power twisted wire the 42, first electric power twisted wire; The coated described fiber unit 3, first of one aluminium foil layer being formed with PET film 82 by aluminium lamination 81 8 communicate by letter twisted wire to 41, second communication twisted wire to the 42, first electric power twisted wire to the 51, second electric power twisted wire to 52 and pentagon star frame 6, thereby the aluminium lamination 81 of described aluminium foil layer 8 is positioned at inner side, electrically contact with the metal level formation of pentagon star frame 6; One steel wire 9 is closely wrapped forms armour in described aluminium foil layer 8 outer surfaces, and a restrictive coating 10 is coated on described armour outer surface;

Described the first communication twisted wire to 41, second communication twisted wire to the first copper conductor 4 diameters in 42 be less than described the first electric power twisted wire to the 51, second electric power twisted wire to the second copper conductor 5 diameters in 52.

Above-mentioned the first communication twisted wire is 15.3mm to 41 pitch, and described second communication twisted wire is 13.6mm to 42 pitch, and described the first electric power twisted wire is 14.6mm to 51 pitch, and described the second electric power twisted wire is 12.9mm to 52 pitch.

Embodiment 2: a kind of low-loss complex data flexible cable, comprising: the first copper conductor 4 that the fiber unit that is comprised of four telecommunication optical fibers 2 that are positioned at loose sleeve pipe 13, four are coated with insulating barrier 111 is stranded between two to be formed as the first communication twisted wire of information communication 41, second communication twisted wire is to 42, four the second copper conductors 5 that are coated with insulating barrier 112 stranded formation as the first electric power twisted wire of electric power transfer the 51, second electric power twisted wire 52 and pentagon star frame 6 between two; Described pentagon star frame 6 is followed successively by the first cavity 61, the second cavity 62, the 3rd cavity 63, the 4th cavity 64 and the 5th cavity 65 in the counterclockwise direction, described pentagon star frame 6 plated surfaces are covered with metal level 7, described fiber unit 3, the first communication twisted wire to 41, second communication twisted wire lays respectively in described the first cavity 61, the second cavity 62, the 3rd cavity 63, the 4th cavity 64 and the 5th cavity 65 52 the 51, second electric power twisted wire the 42, first electric power twisted wire; The coated described fiber unit 3, first of one aluminium foil layer being formed with PET film 82 by aluminium lamination 81 8 communicate by letter twisted wire to 41, second communication twisted wire to the 42, first electric power twisted wire to the 51, second electric power twisted wire to 52 and pentagon star frame 6, thereby the aluminium lamination 81 of described aluminium foil layer 8 is positioned at inner side, electrically contact with the metal level formation of pentagon star frame 6; One steel wire 9 is closely wrapped forms armour in described aluminium foil layer 8 outer surfaces, and a restrictive coating 10 is coated on described armour outer surface;

Above-mentioned the first communication twisted wire is 15 ~ 15.5mm to 41 pitch, and described second communication twisted wire is 13.5 ~ 13.9mm to 42 pitch, and described the first electric power twisted wire is 14.2 ~ 14.6mm to 51 pitch, and described the second electric power twisted wire is 12.7 ~ 13.1mm to 52 pitch.

Above-mentioned the first communication twisted wire to 41, second communication twisted wire is 0.5mm to the first copper conductor 4 diameters in 42, described the first electric power twisted wire is 0.5mm to the 51, second electric power twisted wire to the second copper conductor 5 sectional areas in 52 ².

Adopt when above-mentioned, it adopts steel wire as main stretch, adopt star-like skeleton as main anti-interference element, the hybrid architecture of cable and optical cable, corrosion resistant polyolefine material, have not easy to crack, meet that water does not decompose, stretch-proof, the feature such as corrosion-resistant, greatly increased cable because of environment for use is special, the mutual interference of signal phase affects serviceability ability; Secondly, this low-loss complex data flexible cable has the advantages that to substitute traditional single type telecommunication cable, its transmission characteristic can meet corresponding transmission requirement, because cable has adopted the new structure of anti-interference and stretch-proof, effectively improved the mutual interference of signal phase, environment for use is complicated and impact construction wiring and the problem used; Restrictive coating chance water due to cable does not decompose simultaneously, greatly facilitating emergency maintenance, improve maintenance efficiency and repair quality, is a kind of new product with development prospect, the performance index of product meet products standards requirement, have obvious economic benefit and promotional value; Again, its pentagon star frame plated surface of this low-loss complex data flexible cable is covered with metal level, thereby the aluminium lamination of aluminium foil layer is positioned at inner side to be electrically contacted with the metal level formation of pentagon star frame, form five shielding closed inner chambers, effectively prevent that external electromagnetic interference from entering cable, also stop internal signal to radiate, disturb the work of miscellaneous equipment, improved greatly return loss, characteristic impedance and the crosstalk attenuation of digital cable simultaneously.

Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.

Claims

1. a low-loss complex data flexible cable, is characterized in that: comprising: the first copper conductor (4) that the fiber unit (3) being comprised of four telecommunication optical fibers (2) that are positioned at loose sleeve pipe (1), four are coated with insulating barrier (111) between two stranded form as the first communication twisted wire of information communication to (41), second communication twisted wire to (42), four the second copper conductors (5) that are coated with insulating barrier (112) between two stranded form the first electric power twisted wire as electric power transfer to (51), the second electric power twisted wire to (52) and pentagon star frame (6), described pentagon star frame (6) is followed successively by the first cavity (61) in the counterclockwise direction, the second cavity (62), the 3rd cavity (63), the 4th cavity (64) and the 5th cavity (65), described pentagon star frame (6) plated surface is covered with metal level (7), described fiber unit (3), the first communication twisted wire is to (41), second communication twisted wire is to (42), the first electric power twisted wire is to (51), the second electric power twisted wire lays respectively at described the first cavity (61) to (52), the second cavity (62), the 3rd cavity (63), in the 4th cavity (64) and the 5th cavity (65), the coated described fiber unit (3), first of one aluminium foil layer (8) being formed with PET film (82) by aluminium lamination (81) communicate by letter twisted wire to (41), second communication twisted wire to (42), the first electric power twisted wire to (51), the second electric power twisted wire to (52) and pentagon star frame (6), the aluminium lamination (81) of described aluminium foil layer (8) thus inside being positioned at, electrically contact with the metal level formation of pentagon star frame (6), one steel wire (9) is closely wrapped forms armour in described aluminium foil layer (8) outer surface, and a restrictive coating (10) is coated on described armour outer surface,

Described the first communication twisted wire to (41), second communication twisted wire to the first copper conductor (4) diameter in (42) be less than described the first electric power twisted wire to (51), the second electric power twisted wire to the second copper conductor (5) diameter in (52).

2. low-loss complex data flexible cable according to claim 1, it is characterized in that: described the first communication twisted wire is 15 ~ 15.5mm to the pitch of (41), described second communication twisted wire is 13.5 ~ 13.9mm to the pitch of (42), described the first electric power twisted wire is 14.2 ~ 14.6mm to the pitch of (51), and described the second electric power twisted wire is 12.7 ~ 13.1mm to the pitch of (52).

3. low-loss complex data flexible cable according to claim 1, it is characterized in that: described the first communication twisted wire is 0.5mm to (41), second communication twisted wire to the first copper conductor (4) diameter in (42), and described the first electric power twisted wire is 0.5mm to (51), the second electric power twisted wire to the second copper conductor (5) sectional area in (52) ².