CN202134271U

CN202134271U - Anti-interference super 7 type digital cable

Info

Publication number: CN202134271U
Application number: CN201120208043U
Authority: CN
Inventors: 王惠兵
Original assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Current assignee: Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority date: 2011-06-20
Filing date: 2011-06-20
Publication date: 2012-02-01
Anticipated expiration: 2021-06-20

Abstract

An anti-interference super 7 type digital cable includes eight copper leads. Each of the copper leads is covered by a polyethylene layer outside as an insulating layer; in the eight copper leads, two copper leads comprise a first twisted-pair lead, two copper leads comprise a second twisted-pair lead, two copper leads comprise a third twisted-pair lead, and two copper leads comprise a fourth twisted-pair lead; four double-layer first aluminum foil layers with single surfaces are respectively clad on the first twisted-pair lead, the second twisted-pair lead, the third twisted-pair lead and the fourth twisted-pair lead; each first aluminum foil layer with a single surface comprises an aluminum foil layer and a polyester film layer covered on the aluminum foil layer outside; a polyester belt layer is clad on the four double-layer first aluminum foil layers with single surfaces; a second aluminum foil layer with a single surface is clad on the polyester belt layer; a tin-coated copper filament braided layer is clad on the second aluminum foil layer; a polyvinyl chloride inner cocoon is clad on the tin-coated copper filament braided layer; and a teflon layer is clad on the polyvinyl chloride inner cocoon layer. With the anti-interference super 7 type digital cable provided in the utility model, the self electromagnetic induction of the digital cable is effectively eliminated, and electromagnetic interference to the surrounding cable is minimized.

Description

A kind of anti-interference seven types of digital cables that surpass

Technical field

The utility model relates to a kind of seven types of cables that surpass, and relates in particular to a kind of anti-interference seven types of digital cables that surpass.

Background technology

The sheath of cable: common maritime affairs adopt conventional PVC (polyvinyl chloride) or PE (polyethylene) sheath with data cable.Because usually on the maritime affairs ship; It is bigger that hull is influenced by external environment and ocean climate; Particularly can be regular run under the mal-conditions such as rolling, trim and temperature acute variation, salinity, solar radiation, this protective layer not only causes its useful life very short owing to the influence of environment for use, and because regular rolling, trim; Cause anti-external force damage ability drop, can't guarantee the accuracy of transfer of data.

The screen of cable: the unshielded layer of the transmission unit of common maritime affairs data cable peculiar to vessel (unit group) can not be applicable to the occasion that jamming performance is had relatively high expectations.

Because the said structure limitation of cable, adding upper hull, influenced by external environment and ocean climate bigger, and the interior narrow space of boats and ships in addition, and various kinds of equipment is intensive, and various cable boundlings lay the galvanomagnetic effect of generation and seriously disturbed the stable transfer of signal in the conductor.And the maritime affairs ship is in maintenance, during recovery cable, is easy to influence because of force-extension is crooked its serviceability.

Summary of the invention

The utility model provides a kind of anti-interference seven types of digital cables that surpass, and this surpasses the electromagnetic induction that seven types of digital cables have effectively been eliminated digital cable self, has reduced the electromagnetic interference of cable on every side.

For achieving the above object, the technical scheme that the utility model adopts is: a kind of anti-interference 7 types of digital cables that surpass comprise: eight copper conductors, this copper conductor all cover the polyethylene layer as insulating barrier outward; Two copper conductors are formed first strand to line in said eight copper conductors, and two copper conductors are formed second strand to line; Two copper conductors are formed the 3rd strand to line; Two copper conductors are formed the 4th strand to line;

Four bilayer first single face aluminium foil layers be coated on respectively said first strand to line, second strand to line, the 3rd strand to line and the 4th strand to line, the said first single face aluminium foil layer by aluminum film layer with being overlying on said aluminum film layer outward surperficial laminated polyester film form;

The polyester belt is coated on said four bilayers, the first single face aluminium foil layer;

The second single face aluminium foil layer is coated on said polyester belt;

Tincopper fuse wire braided armor is coated on the said second single face aluminium foil layer;

The polyvinyl chloride sheath is coated on said tincopper fuse wire braided armor;

Polytetrafluoroethylene floor is coated on said polyvinyl chloride sheath.

Related content in the technique scheme is explained as follows:

In the such scheme, said aluminum film layer thickness is 0.05mm, and said polyester film layer thickness is 0.02mm.

Because the technique scheme utilization, the utility model compared with prior art has advantage:

The utility model surpasses the electromagnetic induction that seven types of digital cables have effectively been eliminated digital cable self, has reduced the electromagnetic interference of cable on every side; Secondly, effectively raise the flexibility and the bending resistance of cable, sheath uses the zinc-coated wire armour outward, effectively raises the fire resistance and the anti-collision ability of cable; Once more; The utility model surpasses seven types of digital cables and has improved the cable opposing because the influence of mal-conditions such as temperature acute variation, salinity, solar radiation; When guaranteeing the stable transmission performance of cable; Prolonged the life-span that cable uses, reduced maintenance and the maintenance frequency of warship, had promotion prospect widely with data cable.

Description of drawings

Accompanying drawing 1 surpasses seven types of digital cable structure sketch mapes for the utility model is anti-interference;

Accompanying drawing 2 is the local enlarged diagram in A place in the accompanying drawing 1.

In the above accompanying drawing: 1, copper conductor; 2, polyethylene layer; 3, first strand is to line; 4, second strand is to line; 5, the 3rd strand is to line; 6, the 4th strand is to line; 7, the first single face aluminium foil layer; 8, polyester belt; 9, the second single face aluminium foil layer; 10, tincopper fuse wire braided armor; 11, polyvinyl chloride sheath; 12, polytetrafluoroethylene floor; 13, aluminum film layer; 14, laminated polyester film.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Embodiment: a kind of anti-interference seven types of digital cables that surpass comprise: eight copper conductors 1, this copper conductor 1 all cover the polyethylene layer 2 as insulating barrier outward; Two copper conductors 1 are formed first strand 3, two copper conductors of line are formed second strand to line 4 in said eight copper conductors 1; Two copper conductors are formed the 3rd strand to line 5; Two copper conductors are formed the 4th strand to line 6.

Four bilayer first single face aluminium foil layers 7 be coated on respectively said first strand to line 3, second strand to line 4, the 3rd strand to line 5 and the 4th strand to line 6, the said first single face aluminium foil layer 7 is made up of aluminum film layer 13 laminated polyester film 14 surperficial with being overlying on said aluminum film layer outward; This aluminum film layer thickness is 0.05mm, and said polyester film layer thickness is 0.02mm.

Polyester belt 8 is coated on said four bilayers, the first single face aluminium foil layer 7.

The second single face aluminium foil layer 9 is coated on said polyester belt 8; These the single second single face aluminium foil layer, 9 width * thickness are 28mm*0.07mm.

Tincopper fuse wire braided armor 10 is coated on the said second single face aluminium foil layer 9.

Polyvinyl chloride sheath 11 is coated on said tincopper fuse wire braided armor 10.

Polytetrafluoroethylene floor 12 is coated on said polyvinyl chloride sheath 11; This material uses has good thermally-stabilised and mechanical wear-resisting electrical insulation capability, can anti-strong acid and strong base, corrosion-resistant, fire-resistantly do not fire, the high and low cigarette Halogen of oxygen index, non-ageing PTFE (F4) polytetrafluoroethylmaterial material;

PVDF (F26) fluoroplastics material the key technical indexes:

Long-term serviceability temperature-200--260 degree has remarkable chemical resistance;

Noninflammability: limited oxygen index is below 90.

Adopt above-mentioned anti-interferencely when surpassing seven types of digital cables, can effectively eliminate the electromagnetic induction of digital cable self, reduced the electromagnetic interference of cable on every side; Secondly, effectively raise the flexibility and the bending resistance of cable, sheath uses the zinc-coated wire armour outward, effectively raises the fire resistance and the anti-collision ability of cable; Once more; The utility model surpasses seven types of digital cables and has improved the cable opposing because the influence of mal-conditions such as temperature acute variation, salinity, solar radiation; When guaranteeing the stable transmission performance of cable; Prolonged the life-span that cable uses, reduced maintenance and the maintenance frequency of warship, had promotion prospect widely with data cable.

The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection range of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the utility model.

Claims

1. one kind anti-interferencely surpasses seven types of digital cables, it is characterized in that: comprising: eight copper conductors (1), this copper conductor (1) are all outer to cover the polyethylene layer (2) as insulating barrier; Two copper conductors (1) are formed first strand to line (3) in said eight copper conductors (1), and two copper conductors are formed second strand to line (4); Two copper conductors are formed the 3rd strand to line (5); Two copper conductors are formed the 4th strand to line (6);

Four bilayer first single face aluminium foil layers (7) be coated on respectively said first strand to line (3), second strand to line (4), the 3rd strand to line (5) and the 4th strand to line (6), the said first single face aluminium foil layer (7) is by aluminum film layer (13) and be overlying on the surperficial laminated polyester film (14) of said aluminum film layer outward and form;

Polyester belt (8) is coated on said four bilayers, the first single face aluminium foil layer (7);

The second single face aluminium foil layer (9) is coated on said polyester belt (8);

Tincopper fuse wire braided armor (10) is coated on the said second single face aluminium foil layer (9);

Polyvinyl chloride sheath (11) is coated on said tincopper fuse wire braided armor (10);

Polytetrafluoroethylene floor (12) is coated on said polyvinyl chloride sheath (11).

2. according to claim 1ly surpass seven types of digital cables, it is characterized in that: said aluminum film layer thickness is 0.05mm, and said polyester film layer thickness is 0.02mm.