CN201340752Y

CN201340752Y - Cable for measurement and computer input

Info

Publication number: CN201340752Y
Application number: CNU200920142730XU
Authority: CN
Inventors: 汤传盛; 常峻; 刘玉明; 黄军
Original assignee: Anhui Wuzhou Special Cable Group Co Ltd
Current assignee: Anhui Wuzhou Special Cable Group Co Ltd
Priority date: 2009-01-14
Filing date: 2009-01-14
Publication date: 2009-11-04
Anticipated expiration: 2019-01-14

Abstract

Disclosed is a cable for measurement and computer input. The cable is characterized in that: a conductor adopts the stranding structure of a single copper conductor or a plurality of copper conductors, an organosilane crosslinked polyethylene layer or a PE insulating layer is formed on the conductor in an extruding manner, and every two insulating wires are stranded into a twisted pair set; the twisted pair set is wrapped with a polyester belt and is placed with a unit copper wire drainage thread and an embossed vertical wrapped copper belt, so as to form a unit shield isolating layer, thereby forming a unit twisted pair set; the unit twisted pair set is sequentially arrayed into the cable to form a cable core, a belting layer is formed at the outer surface of the cable core in a wrapped manner, and an embossed copper belt total shield layer is longitudinally wrapped on the belting layer and a total shield drainage thread; after the belting layer is wrapped outside the total shield layer, low-smoke halogen-free flame-retardant polyolefine sheath materials or TPU elastomer materials are wrapped in an extruding manner, so as to form an outer sheath layer. On high-frequency electromagnetic occasions, the cable has dual functions of good electromagnetic interference resistance property and signal/electric-energy transmission.

Description

Measurements and calculations machine input cable

Technical field

The utility model relates to a kind of electrical instrumentation cable, relates in particular under a kind of high frequency occasion the input of measurements and calculations machine and uses cable, belongs to technical field of electric wires and cables.

Background technology

Along with the industrial automation level improves constantly, the effect of electric apparatus instrument is more and more important, has proposed the performance index of the electric apparatus instrument stube cable of requirements at the higher level simultaneously.Measurements and calculations machine input cable is the connecting line of transfer encoding between each associated equipment electronic unit, message data transmission and electric energy transmitting.Such cable need should have electrical properties such as good anti-electromagnetic interference, low decay, Low ESR, low cross-talk under the high-frequency electromagnetic occasion, need cable to have certain flexibility simultaneously.But, also do not have at present a kind ofly can better satisfy the corresponding requirements cable.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, measurements and calculations machine input cable is provided, make it under the high-frequency electromagnetic occasion, have electrical properties such as good anti-electromagnetic interference, low decay, Low ESR, low cross-talk, have signal transmission, electric energy transmitting dual-use function and certain flexibility simultaneously.

The utility model technical solution problem adopts following technical scheme:

The input of the utility model measurements and calculations machine with the design feature of cable is: conductor adopts single or many copper conductor lay configuration, on conductor, extrude and form organosilane crosslinked polyethylene or PE insulating barrier, per two insulated wires are twisted into the pair twist group, on the pair twist group, be surrounded with the vertical copper-clad band of polyester belt and placement unit drainage thread and embossing and form unit shielding separator, and constitute unit pair twist group with this, unit pair twist group is arranged stranding in order constitute cable core, at the wrapped formation belting layer of the outer surface of cable core, the total screen of vertical bag embossing copper strips on belting layer and total shielding drainage thread extrudes low-smoke and halogen-free flame retardant polyolefin jacket material or TPU elastomeric material and forms external sheath layer behind the wrapped belting layer in outside of total screen.

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

1, insulating barrier has adopted the poly-second insulating material of crosslinked with silicane or the PE of high electrical property and high-mechanical property to expect that material is easy to get, and is easy to process in the utility model, and cost performance is the highest;

2, the unit group adopts copper strips to prick line vertical bag screen and the soft drainage thread of Duo Gen copper wire outward in the utility model, compares with copper wire braiding type shielding, and shield effectiveness is good; Compare with the directly vertical bag of copper strips, it is good to have flexibility;

3, the utility model is set to difference by the many groups unit group twisting pitch in the same cable core, can reduce the influence of cross-talk to the cable transmission signal, guaranteed the stability of cable signal transmission, the line that reduces cable simultaneously to electromagnetic coupled, realize transmission performances such as cable high transfer rate, low transmission impedance, low decay;

4, the unit set of shield is an electromagnetism to be done anti-for the line of realizing reducing cable, and the total shielding of cable core is surrounding environment is produced electromagnetic interference or surrounding environment cable is produced to disturb in order to realize reducing cable.The utility model has adopted copper strips to prick the vertical pack arrangement of line, has improved the cable flexibility on the one hand, and is better than copper wire braid shielded effect on the other hand;

5, external sheath layer adopts low-smoke and halogen-free flame retardant polyolefin jacket material or TPU elastomeric material in the utility model, be environmental protection, safety, recyclable reusable new material, the characteristic of special adverse circumstances such as having humidity, adapt to high salinity, difference variation is big;

6, this class cable is applicable to that rated voltage exchanges 750V or direct current 1100V and control of following system and electric energy transmitting.

7, the utility model is applicable to the connection of the high electronic computer of rated voltage 300/500V and following anti-tampering performance requirement, detecting instrument, instrument, has signal transmission and electric energy transmitting dual-use function, more demonstrates its superior function under the high frequency occasion.

Below in conjunction with drawings and Examples the utility model is further specified.

Description of drawings

Fig. 1 is the utility model structure chart.

Number in the figure: 1 conductor, 2 insulating barriers, 3 pair twist groups, 4 polyester belts, 5 unit drainage threads, Unit 6 shielding separator, 7 unit pair twist groups, 8 cable cores, 9 belting layers, 10 total shielding drainage threads, 11 total screens, 12 belting layers, 13 external sheath layers.

Embodiment

In the present embodiment, conductor 1 adopts single or many copper conductor lay configuration, and on conductor 1, extrude organosilane crosslinked polyethylene or PE insulating barrier 2, per two insulated wires are twisted into pair twist group 3, many groups pair twist group 3 in the cable core is set to different pitches respectively, on pair twist group 3, be surrounded with the vertical copper-clad band of polyester belt 4 and placement unit drainage thread 5 and embossing and form unit shielding separator 6, and constitute unit pair twist group 7 with this, unit pair twist group 7 is arranged stranding in order constitute cable core 8, at the wrapped formation belting layer 9 of the outer surface of cable core 8, the total screen 11 of vertical bag embossing copper strips on belting layer 9 and total shielding drainage thread 10 extrudes low-smoke and halogen-free flame retardant polyolefin jacket material or TPU elastomeric material external sheath layer 13 behind the wrapped belting layer 12 in total screen 11 outsides.

In concrete the enforcement, conductor adopts tin annealed copper wire, and its performance meets the requirement of GB/T3956-1997 the 1st or the 2nd kind of zinc-plated flexible conductor, and specification is 0.5mm ², 0.75mm ², 1.0mm ², 1.5mm ²And 2.5mm ²

Claims

1, measurements and calculations machine input cable, it is characterized in that conductor (1) adopts single or many copper conductor lay configuration, on conductor (1), extrude and form organosilane crosslinked polyethylene or PE insulating barrier (2), per two insulated wires are twisted into pair twist group (3), on described pair twist group (3), be surrounded with the vertical copper-clad band of polyester belt (4) and placement unit copper wire drainage thread (5) and embossing and form unit shielding separator (6), and constitute unit pair twist group (7) with this, described unit pair twist group (7) is arranged stranding in order constitute cable core (8), at the wrapped formation belting layer of the outer surface of cable core (8) (9), go up the vertical bag total screen of embossing copper strips (11) at belting layer (9) and total shielding drainage thread (10), behind the wrapped belting layer in outside (12) of total screen (11), extrude low-smoke and halogen-free flame retardant polyolefin jacket material or TPU elastomeric material and form external sheath layer (13).