CN201796637U

CN201796637U - Cable for data bus

Info

Publication number: CN201796637U
Application number: CN2010205515459U
Authority: CN
Inventors: 栗雪松; 刘丽国; 汪元林; 潘俊平
Original assignee: HUAINAN NEW GUANGSHEN OPTICAL FIBER CABLE CO Ltd
Current assignee: HUAINAN NEW GUANGSHEN OPTICAL FIBER CABLE CO Ltd
Priority date: 2010-09-28
Filing date: 2010-09-28
Publication date: 2011-04-13
Anticipated expiration: 2020-09-28

Abstract

The utility model discloses a cable for a data bus, which is characterized in that a sliver-copper alloy plated conductor is adopted, a conducting core is formed on the outer surface of the conductor by taking a crosslinking ethylene-tetrafluoroethylene copolymer as an insulating layer, a cable core is jointly formed by the conducting core and a crosslinking ethylene-tetrafluoroethylene copolymer filling core, a shielding layer is formed outside the cable core by braiding of silver-copper plated wire, and an outer-layer sheath is formed outside the shielding layer by adopting the crosslinking ethylene-tetrafluoroethylene copolymer. The cable for a data bus is in accordance with 1553B bus protocol, and has light weight, high mechanical strength and excellent environment-resisting performance.

Description

The data/address bus cable

Technical field

The utility model relates to cable, and it is a kind of mainly in Aero-Space, naval vessel and land battlebus more specifically to say so, and carries out internal digital formula time-devision system instruction/response type multiplex data bus cable.

Background technology

Existing data/address bus generally adopts the silver-plated copper conductor, perfluoroethylene-propylene insulating barrier, silver-gilt copper wire woven shield and perfluoroethylene-propylene sheath.

The data/address bus of this version has very dark pair twist lines, the outward appearance out-of-flatness because of two core pair twists, frictional resistance is big, and conductor adopts the silver-plated copper conductor, and resistance to tension is little, the easy drawing-down of conductor is broken when installing and using, and perhaps ruptures easily in crimping or pad conductor; Perfluoroethylene-propylene density is bigger, is 2.25g/cm ³, perfluoroethylene-propylene intensity is less, has only 20～23MPa, and equal instructions for use jacket thickness is thicker, and cable weight is heavier, and insulation and sheath weigh wounded or scratch easily when installing and using; In addition, the not anti-high energy electron irradiation of perfluoroethylene-propylene material, it is just destroyed that radiation dose reaches the 0.1Mrad material, in many environment, uses as being limited in the environment such as high-altitude, the outer space, nuclear power, accelerated electron equipment.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of data/address bus cable is provided, make it meet the 1553B bus protocol, having characteristic in light weight, that mechanical strength is high, environmental resistance is excellent simultaneously.

The utility model technical solution problem adopts following technical scheme:

The utility model data/address bus is to adopt the silver-plated copper alloy conductor with the design feature of cable, in the appearance of conductor is to be that insulating barrier constitutes conductive cores with cross-linked ethylene-TFE copolymer, constitute cable core jointly with conductive cores and cross-linked ethylene-TFE copolymer filled core, outside at cable core forms screen with the silver-gilt copper wire braiding, is to form outer protective sleeve with cross-linked ethylene-TFE copolymer in the outside of described screen.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model adopts the silver-plated copper alloy conductor, has improved the mechanical strength of conductor, and conductor is difficult for drawing-down and breaks when installing and using, and crimping or pad conductor do not rupture.

2, insulation and sheath material adopt cross-linked ethylene-tetrafluoroethene in the utility model, and this density of material is little, is 1.78g/cm ³, material is transformed into cross-linked structure by linear structure behind high-energy electron irradiation, has excellent mechanical strength, reaches 35～40MPa, and equal instructions for use jacket thickness is thinner, therefore has little, the lightweight characteristics of external diameter; Adopt cross-linked ethylene-tetrafluoroethene material to have excellent anti-high energy electron irradiation, radiation dose reaches the 15Mrad material and also is not destroyed, and is applicable to environment such as high-altitude, the outer space, nuclear power, accelerated electron equipment.

3, the utility model adopts cross-linked ethylene-TFE copolymer filled core, makes the construction of cable stable, and electrical property is reliable, and the outward appearance rounding is attractive in appearance, and frictional resistance is little; And when crooked between filled core and the insulation frictional force little, string moves easily each other, crooked flexibility is good.

Description of drawings

Fig. 1 is the utility model structural representation.

Number in the figure: 1 conductor; 2 insulating barriers; 3. filled core; 4 screens; 5 sheaths

Embodiment

Referring to Fig. 1, present embodiment is to adopt silver-plated copper alloy conductor 1, in the appearance of silver-plated copper alloy conductor 1 is to be that insulating barrier 2 constitutes conductive cores with cross-linked ethylene-TFE copolymer, with conductive cores and cross-linked ethylene-TFE copolymer filled core 3 common formation cable cores, outside at cable core forms screen 4 with the silver-gilt copper wire braiding, is to form outer protective sleeve 5 with cross-linked ethylene-TFE copolymer in the outside of screen 4.

In concrete the enforcement, silver-plated copper alloy conductor 1 outer extruded insulation layer 2 is made basic core after high-energy electron beam irradiation is crosslinked, at outer woven shield 4, sheath 5 is extruded in outermost layer behind two cores and two filled core 3 strandings, and sheath is through the high-energy electron accelerator cross-linking radiation.

Claims

1. data/address bus cable, it is characterized in that adopting silver-plated copper alloy conductor (1), in the appearance of conductor (1) is to be that insulating barrier (2) constitutes conductive cores with cross-linked ethylene-TFE copolymer, constitute cable core jointly with described conductive cores and cross-linked ethylene-TFE copolymer filled core (3), outside at described cable core forms screen (4) with the silver-gilt copper wire braiding, is to form outer protective sleeve (5) with cross-linked ethylene-TFE copolymer in the outside of described screen (4).