CN201522889U

CN201522889U - Data bus cable

Info

Publication number: CN201522889U
Application number: CN200920250886XU
Authority: CN
Inventors: 于玉波; 张岩; 贾超; 徐广文; 张明月
Original assignee: TIANJIN YIXINTONG TECHNOLOGY Co Ltd
Current assignee: TIANJIN YIXINTONG TECHNOLOGY Co Ltd
Priority date: 2009-11-26
Filing date: 2009-11-26
Publication date: 2010-07-07
Anticipated expiration: 2019-11-26

Abstract

The utility model relates to a high-temperature and irradiation resistant data bus cable used for transmitting multiple compound signals. The data bus cable comprises insulated conductors, filling cores, shielding layers and sheaths, wherein each insulated conductor is formed by extruding an insulating layer outside an inner conductor, the two insulated conductors and the two filling cores are arranged symmetrically and stranded to be bundles respectively, and the three-layer structured shielding layers and the sheaths are arranged outside the insulated conductors and the filling cores in sequence. The data bus cable has the benefits of high-temperature resistance, low temperature resistance, light weight, excellent flame retardance and electromagnetic compatibility, so that the temperature of a product can reach 200 DEG C, a long-term operating temperature can reach minus 100 DEG C, the weight can be reduced by about 20 percent compared with the FEP material, the oxygen index can reach 40, and the double-layer knitted structure with anti-electromagnetic composite films arranged therein greatly improves the anti-electromagnetic interference capability of the product and ensures the reliable transmission of the signals.

Description

Data bus cable

Technical field

The utility model relates to a kind of cable, particularly a kind of high temperature resistant, radiotolerant data bus cable that is used for field multichannel composite signal transmission usefulness such as Aero-Space, electronics.

Background technology

Along with the develop rapidly of Aeronautics and Astronautics and electronics industry and defence engineering, the cable of signal transmission usefulness is proposed higher requirement, cable develops to directions such as miniaturization, in light weight, high temperature resistant, anti-electromagnetic interference.General data cable is third rare with polyethylene foamed, polyethylene, perfluoroethylene, polytetrafluoroethylene is as insulating material, with the normal temperature material as packing material, these materials are all poor aspect fire-retardant, intensity, signal attenuation index and high and low temperature resistance, can not satisfy the job requirement of complete machine.

Summary of the invention

In view of the deficiency that prior art exists, the utility model provides a kind of high temperature resistant, low temperature resistant, in light weight, data bus cable that antijamming capability is strong.

The utility model for achieving the above object, the technical scheme that is adopted is: a kind of data bus cable, the conductor that included extrudes insulated electric conductor, filled core, screen and the sheath that a layer insulating constitutes outward, it is characterized in that: two described insulated electric conductors, two described filled cores are symmetrical arranged stranded bunchy respectively, are provided with the screen and the sheath of three-decker outside it successively.

The beneficial effects of the utility model are: insulating barrier, filled core, sheath all adopt insulation cross-linking radiation X-ETFE material, and the high temperature resistant heatproof of product that can make reaches 200 ℃; The low temperature resistant temperature that works long hours can reach-100 ℃.In light weight: the density of this kind material is littler than the density of common fluoroplastics, is 1.7g/cm ³The weight of the product that reduces greatly can be than adopting the FEP material to reduce about 20% on the weight.Good flame resistance: have very high fire resistance, oxygen index can reach 40.Electro Magnetic Compatibility: adopted add in the double braid anti-electromagnetism composite membrane structure, the design of three layers of shielding construction can improve the anti-electromagnetic interference capability of product greatly, the shielding attenuation of product can reach 100dB.Stability: between insulation, added round filled core, made product electrical property (electric capacity and impedance decay etc.) stable, guaranteed the reliable transmission of signal.Anti-irradiation: the X-ETFE material of employing has very high anti-irradiation ability, and radiation-resistant property can reach 1 * 10 ⁸Mrad.

Description of drawings

Fig. 1 is a structural representation of the present utility model and as Figure of abstract.

Embodiment

As shown in Figure 1, data bus cable, the conductor 1-1 that included extrudes insulated electric conductor 1, filled core 2, screen 3 and the sheath 4 that a layer insulating 1-2 constitutes outward, two thoroughly do away with edge electric wire 1, two filled cores 2 are symmetrical arranged stranded bunchy respectively, are provided with the screen 3 and the sheath 4 of three-decker outside it successively.

The internal layer of three-decker screen 3 is that silver-plated copper or tincopper fuse wire braided armor 3-1, intermediate layer are anti-electromagnetism aluminium-plastic tape 3-2, outerly are silver-plated copper or tincopper fuse wire braided armor 3-3.Insulating barrier 1-2, filled core 2, sheath 4 all adopt the X-ETFE insulating material.

The utility model can obtain by following technical process manufacturing: use electric wire cable strand machine or the stranded silver-plated copper monofilament of bunching machine as inner wire 1-1, extrude cross-linking radiation X-ETFE insulating barrier 1-2 at inner wire 1-1 external application cable and constitute insulated electric conductor 1, extrude circular cross-linking radiation X-ETFE as filled core 2 with cable machinery, thoroughly do away with edge electric wire 1 with two, two filled cores 2 are symmetrical arranged respectively together, with cabler insulated electric conductor 1 and filled core 2 are twisted together, outside it, adopt braiding machine braiding one deck silver-plated copper or tinned copper wire screen 3-1, the anti-electromagnetism aluminium-plastic tape of wrapped one deck 3-2 outside silver-plated copper or tinned copper wire screen 3-1, outside anti-electromagnetism aluminium-plastic tape 3-2, weave one deck silver-plated copper or tinned copper wire screen 3-3 again, outside silver-plated copper or tinned copper wire screen 3-3, extrude cross-linking radiation X-ETFE as sheath 4.

Claims

1. data bus cable, outer insulated electric conductor (1), filled core (2), screen (3) and the sheath (4) that extrudes a layer insulating (1-2) formation of the conductor (1-1) that included, it is characterized in that: two described insulated electric conductors (1), two described filled cores (2) are symmetrical arranged stranded bunchy respectively, are provided with the screen (3) and the sheath (4) of three-decker outside it successively.

2. data bus cable according to claim 1 is characterized in that: the internal layer of described three-decker screen (3) is that silver-plated copper or tincopper fuse wire braided armor (3-1), intermediate layer are anti-electromagnetism aluminium-plastic tape (3-2), outerly are silver-plated copper or tincopper fuse wire braided armor (3-3).

3. data bus cable according to claim 1 is characterized in that: described insulating barrier (1-2), filled core (2), sheath (4) all adopt the X-ETFE insulating material.