CN202601261U

CN202601261U - Outdoor special transmission cable

Info

Publication number: CN202601261U
Application number: CN 201220200983
Authority: CN
Inventors: 樊群; 李峰; 肖妙霞; 许宪成; 成绍强; 陈祥楼; 赖洪林
Original assignee: Nanjing Quanxin Cable Technology Co Ltd
Current assignee: Nanjing Quanxin Cable Technology Co Ltd
Priority date: 2012-05-08
Filing date: 2012-05-08
Publication date: 2012-12-12
Anticipated expiration: 2022-05-08

Abstract

The utility model relates to an outdoor special transmission cable, being characterized in that the periphery of a conductor is an insulating layer; the periphery of the insulating layer is a sheath layer; the periphery of the insulating layer is an overall shielding layer; the periphery of the overall shielding layer is a sheath layer; the periphery of the insulating layer can also be a sub shielding layer; the periphery of the sub shielding layer is the overall shielding layer; and the periphery of the overall shielding layer is a sheath layer. The outdoor special transmission cable has the advantages that the insulation uses the tetrafluoroethylene-hexafluoropropylene copolymer FEP with a temperature resistance range of -65 DEG C to 200 DEG C; the sheath uses the soft thermoplastic elastomer TPE with a temperature resistance range of -55 DEG C to 105 DEG C; the temperature resistance range of the product is -55 DEG C to 105 DEG C; the conductor uses a soft-structure conductor; the insulation uses a thin-wall extrusion, thus reducing the structural size of the cable; the sheath layer uses the soft thermoplastic elastomer TPE, thus improving the softness of the cable product; the shielding uses the overall shielding or the sub shielding adding the overall shielding structure scheme, thus preventing electromagnetic interference; and the outdoor special transmission cable can satisfy the requirements for abrasion resistance, flame retardance, salt mist resistance, dampness-heat resistance and mould resistance in the outdoor special environment condition.

Description

Extraordinary transmission cable is used in the field

Technical field

The utility model is the open-air extraordinary transmission cable of using; Product can be applicable to the signal transmission of equipment under the open-air special environment condition; Serviceability temperature wide ranges (55 ℃～+ 105 ℃); Under low temperature environment, can keep flexibility preferably, can satisfy anti-salt fog under the open-air special environment condition, prevent requirements such as damp and hot, mould proof, anti-interference.

Background technology

On the basis with reference to national military standard GJB 773A-2000 " Aero-Space are with fluoropolymer insulated wire cable general specification " and GB/T 11327-1999 " polyvinyl chloride insulation pvc sheath low-frequency communication cable electric wire ", mainly increased the product correlated performance under the particular surroundings in the open air: 1. high-low temperature resistant; 2. soft; 3. anti-salt fog, anti-damp and hot, mould proof; Performance such as 4. anti-interference is formulated according to user's specific (special) requirements, takes into full account its applicability and fail safe, through the sample verification experimental verification designed rationality and reliability.

Summary of the invention

The utility model proposes a kind of field and uses extraordinary transmission cable; Its purpose is intended to increase the product correlated performance under the particular surroundings in the open air: high-low temperature resistant, softness, anti-salt fog, performance such as anti-damp and hot, mould proof, anti-interference are applicable to the signal transmission of equipment under the open-air special environment condition.

The technical solution of the utility model: its structure is that the periphery of the stranded zinc-plated round copper stranded conductor conductor of usefulness bundle winch is to extrude the insulating barrier of perfluoroethylene-propylene FEP material with 300 ℃ of high temperature～380 ℃ of extruder thin-walleds, and the periphery of this insulating barrier is the thermoplasticity soft elastomer TPE restrictive coating of extruding with normal temperature extruder equipment.

The utlity model has following advantage: 1) high-low temperature resistant: perfluoroethylene-propylene FEP is adopted in insulation, temperature resistant range-65 ℃～200 ℃; Sheath adopts soft thermoplastic elastomer (TPE) TPE, temperature resistant range-55 ℃～105 ℃; Make product have the temperature resistant range-55 ℃ of broad～105 ℃, high and low temperature resistance preferably; 2) flexibility: conductor has adopted soft junction structure conductor, and insulation adopts thin-walled to extrude the physical dimension that has reduced cable, and restrictive coating adopts soft thermoplastic elastomer (TPE) TPE, can improve the flexibility of product cable on the whole; Cable can keep flexibility preferably under low temperature environment simultaneously; 3) anti-interference: total shielding is adopted in shielding, or divides shielding totalling shielding construction scheme, and is inner and from the electromagnetic interference of external environment condition to prevent cable; Guarantee the stability of signal transmission; 4) environmental resistance of excellence: can satisfy wear-resisting under the open-air special environment condition, fire-retardant, anti-salt fog, prevent requirements such as damp and hot, mould proof.

Description of drawings

Accompanying drawing 1 is not to be with the structural representation of the field of a minute shielding, total shielding with extraordinary transmission cable.

Accompanying drawing 2 is not to be with the structural representation of the field of total shielding with extraordinary transmission cable.

Accompanying drawing 3 is open-air structural representations with extraordinary transmission cable.

Among the figure 1 is conductor; The 2nd, insulating barrier; The 3rd, sub-shield; The 4th, total screen; The 5th, restrictive coating.

Embodiment

Contrast accompanying drawing 1; Its structure is to comprise conductor 1, insulating barrier 2, restrictive coating 5; Wherein the periphery with the stranded zinc-plated round copper stranded conductor conductor 1 of bundle winch is an insulating barrier 2 of extruding perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature, and the periphery of this insulating barrier is the thermoplasticity soft elastomer TPE restrictive coating of extruding with normal temperature extruder equipment 5.

[0011] Contrast accompanying drawing 2; Its structure is to comprise conductor 1, insulating barrier 2, total screen 4, restrictive coating 5; Wherein the periphery with the stranded zinc-plated round copper stranded conductor conductor 1 of bundle winch is an insulating barrier 2 of extruding perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature; The periphery of extruding the insulating barrier 2 of perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature is the total screen 4 of zinc-plated circular copper wire that after the stranding operation, weaves with braiding machine, and the periphery of the total screen 4 of zinc-plated circular copper wire that after the stranding operation, weaves with braiding machine is thermoplasticity soft elastomer TPE restrictive coatings 5 of extruding with normal temperature extruder equipment.

Contrast accompanying drawing 3; Its structure is to comprise conductor 1, insulating barrier 2, sub-shield 3, total screen 4, restrictive coating 5; Wherein the periphery with the stranded zinc-plated round copper stranded conductor conductor 1 of bundle winch is an insulating barrier 2 of extruding perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature; The periphery of extruding the insulating barrier 2 of perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature is the zinc-plated circular copper wire sub-shield 3 that externally weaves at holding wire with braiding machine; With braiding machine holding wire externally the periphery of the zinc-plated circular copper wire sub-shield 3 of braiding is the total screen 4 of zinc-plated circular copper wire that after the stranding operation, weaves with braiding machine, the periphery of the total screen 4 of zinc-plated circular copper wire that after the stranding operation, weaves with braiding machine is thermoplasticity soft elastomer TPE restrictive coatings 5 of extruding with normal temperature extruder equipment.

Described conductor 1 is with the bundle winch zinc-plated circular copper wire twisted wire to be twisted together.

Described insulating barrier 2 is perfluoroethylene-propylene (FEP) materials of extruding with high temperature extruder thin-walled.

Described sub-shield 3 is the zinc-plated circular copper wires with the braiding machine braiding.

Described total screen 4 is to weave zinc-plated circular copper wire with braiding machine.

Described restrictive coating 5 is to extrude soft thermoplastic elastomer (TPE) TPE with the cable extrusion equipment.

Concrete preparation technology:

With restrainting the stranded zinc-plated round copper stranded conductor of winch as conductor;

Extrude perfluoroethylene-propylene FEP material as insulating barrier with high temperature (300 ℃～380 ℃ of processing temperature scopes) extruder thin-walled; The insulation resistance of insulated wire cores be not less than 1.5 * 10 ³M Ω km;

It is right as holding wire with pair twister two insulated core back twists to be twisted into twisted pair wire;

Externally weave zinc-plated circular copper wire as sub-shield (when needing to divide shielding) with braiding machine at holding wire;

With cabler many to holding wire to or the band sub-shield holding wire strand stranding together, tighten with band;

After the stranding operation, weave zinc-plated circular copper wire as total screen with braiding machine;

With normal temperature extruder equipment extruded thermoplastic soft elastomer (TPE) sheath.

Conductor adopts zinc-plated circular copper wire twisted wire soft junction structure conductor, has improved the flexibility of conductor and cable.Insulating barrier adopts perfluoroethylene-propylene FEP material, and insulating exruded thin thickness under the prerequisite that does not influence electric property and mechanical performance, has reduced the overall dimension and the weight of cable, has high-low temperature resistant and other environmental resistance preferably simultaneously; Total shielding is adopted in shielding, or divides shielding totalling shielding construction, adopts zinc-plated round copper wire braiding, and is inner and from the electromagnetic interference of external environment condition to prevent cable; Sheath material adopts TPE soft elastomer material, makes cable under cryogenic conditions, have flexibility preferably, can satisfy wear-resisting under the open-air special environment condition, fire-retardant, anti-salt fog, prevent requirements such as damp and hot, mould proof.

Claims

1. extraordinary transmission cable is used in the field; It is characterized in that the periphery with the stranded zinc-plated round copper stranded conductor conductor (1) of bundle winch is an insulating barrier (2) of extruding perfluoroethylene-propylene FEP material with 300 ℃～380 ℃ extruder thin-walleds of high temperature, the periphery of this insulating barrier is the thermoplasticity soft elastomer TPE restrictive coating of extruding with normal temperature extruder equipment (5).

2. use extraordinary transmission cable according to the said field of claim 1; The periphery that it is characterized in that insulating barrier can be the total screen of zinc-plated circular copper wire (4) that after the stranding operation, weaves with braiding machine, and the periphery of this total screen is a thermoplasticity soft elastomer TPE restrictive coating (5).

3. use extraordinary transmission cable according to the said field of claim 2; The periphery that it is characterized in that described insulating barrier can also be the zinc-plated circular copper wire sub-shield (3) that externally weaves at holding wire with braiding machine; The periphery of this sub-shield is the total screen of zinc-plated circular copper wire (4) that after the stranding operation, weaves with braiding machine, and the periphery of total screen is a thermoplasticity soft elastomer TPE restrictive coating (5).