CN1725385A - Data communication paired cable with shield in double-conduit - Google Patents
Data communication paired cable with shield in double-conduit Download PDFInfo
- Publication number
- CN1725385A CN1725385A CN 200510024160 CN200510024160A CN1725385A CN 1725385 A CN1725385 A CN 1725385A CN 200510024160 CN200510024160 CN 200510024160 CN 200510024160 A CN200510024160 A CN 200510024160A CN 1725385 A CN1725385 A CN 1725385A
- Authority
- CN
- China
- Prior art keywords
- data communication
- paired cable
- pair
- screen data
- shield clip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Communication Cables (AREA)
Abstract
This invention relates to a data communication paired cable with double sheathings clamping a screen layer including several conductors covered by an insulation layer, a screen layer and an outer sheathing, every two conductors are twisted into a set of paired cable, the outer of more than two sets is wrapped by an internal protection layer, a screen layer wraps the outer of the internal layer, the outer sheathing covers the outer of the screen layer, that is: the screen layer is clamped in the middle of the double sheathings. This invention puts an Al foil screen layer in the double-layer sheathing to protect against outside magnetic interference to increase flexibility of wiring.
Description
Technical field
The present invention relates to cable, particularly a kind of two shield clip screen data communication paired cables of high-performance data transmission usefulness.
Background technology
In the existing high-performance data communication paired cable, the main cross separation frame that adopts is the main unshielded cable of six classes, when this series products of design, what people mainly considered is the electromagnetic interference effect that prevents cable inside, by together with the line strand of different pitches, the cable interior lines that reduce parallel lay-up to greatest extent between electromagnetic interference, though this method can prevent effectively the cable inner wire to electromagnetic interference, the electromagnetic interference between cable and the cable or the external world is comprised that external interference effect is not good.
Briefly, external interference is the inner line of cable to last measurement, from the noise of adjacent cable induction, especially when wiring, normally several Class 6 cables lay simultaneously, at this moment between uncontrollable adjacent two or the many cables line of same lay between distance, thereby increased line to electromagnetic interference.Transmission has and has a strong impact on to the signal of main string loop and interfered loop in this kind interference, can cause distorted signals, error code etc. usually.
Summary of the invention
In order to improve the electromagnetic interference between the adjacent cable, task of the present invention provides a kind of improved pair of shield clip screen data communication paired cable, and it has solved traditional Class 6 cable problems such as external electromagnetic interference between cable and the cable or the external world in use.
Technical scheme of the present invention is as follows:
A kind of pair of shield clip screen data communication paired cable, it comprises several conductors, at the outer insulating barrier that coats of every conductor, and screen and outer protective sleeve, one group of twisted pair wire is formed in per two conductor twistings, and the skin of two groups of above twisted pair wires is coated with sheath, at the skin coating screen of sheath, outer protective sleeve then is coated on the outside of screen, promptly inserts and puts screen in the centre of duplex sheath.
Paired cable of the present invention change on the structure, by traditional unshielded or line set of shield structural change is to sandwich the foil shielding layer structure in the middle of duplex sheath, promptly prevent external electromagnetic interference effectively, the flexibility when having increased wiring by the distance of increase adjacent cables and the dual mode of aluminum foil shielded.Mechanical performance of this cable product and electric property all can satisfy the requirement of the aspects such as industrial standard of world developed country, also can satisfy the desired fire retardant performance in American insurance merchant laboratory, have advantage easy to use, that be convenient to lay.
Required five classes when paired cable of the present invention can satisfy the intelligent building comprehensive wiring, the requirement that surpasses five classes, six classes, surpasses six class paired cables, frequency of utilization reaches as high as 650MHZ.The product appearance rounding can be supported networks such as 100BASET ATM, gigabit Ethernet, token-ring network, is applicable to the built on stilts and pipeline wiring in indoor and outdoor.
Description of drawings
Fig. 1 is the profile of a kind of pair of shield clip screen data communication paired cable of the present invention.
Fig. 2 is the profile of another embodiment of Fig. 1 cable, for the shim situation is arranged.
Embodiment
Referring to Fig. 1, the present invention is an a kind of pair of shield clip screen data communication paired cable, is provided with several conductors 1 in cable, every conductor 1 outer evenly coated insulation layer 2.Cable also is provided with screen 5 and outer protective sleeve 6.
One group of twisted pair wire 7 is formed in per two conductor 1 twistings, and twisted pair wire 7 has more than two groups.The skin of two groups or three groups or four groups twisted pair wires 7 coats sheath 4, in the skin coating screen 5 of sheath 4,6 outsides that are coated on screen 5 of outer protective sleeve.Outer protective sleeve 6 is to mould fat (FEP) material by polyvinyl chloride (PVC) or fluorine to make.
Become cable to coat one deck sheath earlier, promptly sheath 4, vertically coat screen 5 again, coat outer protective sleeve 6 at last; Promptly insert and put one deck screen 5 in the middle of the interlayer of duplex sheath, this screen 5 can be an aluminium foil, can prevent in use between the adjacent cables so effectively or extraneous electromagnetic interference.
Referring to Fig. 2, the requirement different according to product hierarchy, when twisted pair wire 7 is stranded, can adds shim 3 and carry out the stranded cable that is formed into, installing shim 3 between the group of twisted pair wire 7 and group just, inner not collinear to strengthen to having stronger anti-electromagnetic interference capability, so just formed a novel shielding category 6+network.
Shim 3 can be cross shape, or rounded, or in the form of sheets.Cross shape shim 3 is to mould fat (FEP) material by high-density polyethylene (HDPE) or fluorine to make.
The cored wire conductor 1 of paired cable of the present invention is to be that hypoxemia or the oxygen-free copper bar of 2.6mm made through wire drawing, annealing by diameter, and the wire gauge of conductor 1 is (23～24) AWG; The insulating barrier of heart yearn is moulded fat (FEP) material by high density polyethylene (HDPE) (HDPE) or fluorine and is made, thickness of insulating layer be 0.25+/-0.02mm; Two heart yearns of twisted pair wire are the twisting shape, and the four pairs of lines all adopt the back twist technology of (30～60) %; Can adopt between the four pairs of twisted pair wires width be 5.0+/-0.5mm thickness be 0.55+/-the cross shim of 0.1mm; Duplex sheath is moulded fat (FEP) material by polyvinyl chloride (PVC) or fluorine and is made, the thickness of two-layer sheath be 0.45+/-0.02mm, external diameter be 7.8+/-0.2mm; Duplex sheath central longitudinal bag aluminium foil strip, aluminium foil strip width be 28+/-2mm, thickness be 0.25+/-0.05mm.
Paired cable of the present invention has four important unit for electrical property parameters: impedance, decay, electromagnetic interference, return loss the time have taken into full account this balanced relation in design.
Impedance is a parameter the most basic in the electric property, and it is by conductor lines footpath, two conductor centre-to-centre spacing, these three the parameter decisions of insulative dielectric constant, and not matching of any impedance all can cause the error of final acknowledge(ment) signal.Therefore taken into full account the influence of these three factors when design, the conductor lines footpath is big, and low cut can be got well, but cost raises, and finish line footpath is bigger than normal; The conductor lines footpath is little, and decay can be influenced.Consider when producing that pitch is different and tension force is inconsistent, can produce each line two conductor centre-to-centre spacing difference is influenced impedance, go out different insulated wire footpath according to different multiple twin pitch design, guarantee behind the finished product that the right resistance value of every line is controlled at about 100+/-15 ohm.
Decay is divided into conductor decay and diectric attenuation two parts, and the conductor decay is relevant with resistance, therefore adopts oxygen-free copper or hypoxemia copper product, makes resistance reach minimum; Insulating material selects for use high density polyethylene (HDPE) (HDPE) or fluorine to mould fat (FEP) material, all is the smaller material of dielectric constant and dielectric loss angle.
The superior performance of this wire rod is embodied on the anti-electromagnetic interference.Six class lines all can sandwich a shim in the centre of four pairs of lines when design, distance between its two pairs of lines is strengthened, and keep every pair of line to separate in cavity, the position interfixes each other, not can with other line to contacting, reduced the dielectric constant in the whole cavity substantially.This interlayer can make along the electromagnetic field of conductor transmission decays on vertical minimum degree ground of cable, makes the field decay farthest between each twisted pair wire and another twisted pair wire, thereby improves electromagnetic interference and fade performance.The line that the mode that adds shim only can solve cable inside between electromagnetic interference, for then solving from the electromagnetic interference between adjacent cables, and the present invention had both considered electromagnetic interference in the line group, also considered electromagnetic interference between the line group, because the solution of electromagnetic interference brings realization by two-layer sheath and one deck aluminium foil between the line group.Two-layer sheath had basically both guaranteed that aluminium foil strip can normally bring into play anti-jamming capacity, had also increased the distance between the adjacent lines group, thereby had avoided extraneous electromagnetic interference.
Return loss is subjected to the influence of input impedance, since with load impedance do not match or make in the inhomogeneous point in cycle, thereby the reflection that produces signal, input impedance is fluctuateed up and down at characteristic impedance value, the energy of reflection aggravates along with the increase of frequency, even can produce the sudden change significantly of return loss.The present invention adopts the pre-back twist technology of pair twist, eliminates the influence of periodic inconsistent generation to input impedance, improves the stability of input impedance, thereby optimizes return loss.
Claims (10)
1. two shield clip screen data communication paired cable, it comprises several conductors, at the outer insulating barrier that coats of every conductor, and screen and outer protective sleeve, it is characterized in that one group of twisted pair wire is formed in per two conductor twistings, the skin of two groups of above twisted pair wires is coated with sheath, skin at sheath coats screen, and outer protective sleeve then is coated on the outside of screen, promptly inserts and puts screen in the centre of duplex sheath.
2. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described twisted pair wire has three groups.
3. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described twisted pair wire has four groups.
4. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that, is equiped with shim between described twisted pair wire group and the group.
5. according to claim 4 pair of shield clip screen data communication paired cable is characterized in that described shim is cross shape.
6. according to claim 5 pair of shield clip screen data communication paired cable is characterized in that described cross shape shim is moulded the fat material by high-density polyethylene or fluorine and made.
7. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described shim is rounded.
8. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described shim in the form of sheets.
9. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described screen is an aluminium foil.
10. according to claim 1 pair of shield clip screen data communication paired cable is characterized in that described outer protective sleeve is moulded the fat material by polyvinyl chloride or fluorine and made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024160 CN1725385A (en) | 2005-03-02 | 2005-03-02 | Data communication paired cable with shield in double-conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024160 CN1725385A (en) | 2005-03-02 | 2005-03-02 | Data communication paired cable with shield in double-conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1725385A true CN1725385A (en) | 2006-01-25 |
Family
ID=35924766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510024160 Pending CN1725385A (en) | 2005-03-02 | 2005-03-02 | Data communication paired cable with shield in double-conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1725385A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894612A (en) * | 2010-07-26 | 2010-11-24 | 苏州宝兴电线电缆有限公司 | Multiple-core cable with two extrusion molding out of jacket |
| CN102751026A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Environment-friendly digital symmetrical cable |
| CN102964655A (en) * | 2011-09-01 | 2013-03-13 | 苏州经纬光电器材有限公司 | Flame-retardant polyolefin cross-shaped skeleton |
| CN104303019A (en) * | 2012-05-14 | 2015-01-21 | 株式会社阿米泰克 | Position detection device |
| CN106251972A (en) * | 2016-08-31 | 2016-12-21 | 喜天奇(江苏)电子有限公司 | A kind of LSOH anti-flaming surpass five class netting twines |
| CN106448876A (en) * | 2016-08-31 | 2017-02-22 | 喜天奇(江苏)电子有限公司 | Category 5e unshielded twisted pair cable capable of operating two channels of isolation signals |
-
2005
- 2005-03-02 CN CN 200510024160 patent/CN1725385A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894612A (en) * | 2010-07-26 | 2010-11-24 | 苏州宝兴电线电缆有限公司 | Multiple-core cable with two extrusion molding out of jacket |
| CN101894612B (en) * | 2010-07-26 | 2012-07-11 | 苏州宝兴电线电缆有限公司 | Multiple-core cable with two extrusion molding out of jacket |
| CN102964655A (en) * | 2011-09-01 | 2013-03-13 | 苏州经纬光电器材有限公司 | Flame-retardant polyolefin cross-shaped skeleton |
| CN104303019A (en) * | 2012-05-14 | 2015-01-21 | 株式会社阿米泰克 | Position detection device |
| CN102751026A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Environment-friendly digital symmetrical cable |
| CN106251972A (en) * | 2016-08-31 | 2016-12-21 | 喜天奇(江苏)电子有限公司 | A kind of LSOH anti-flaming surpass five class netting twines |
| CN106448876A (en) * | 2016-08-31 | 2017-02-22 | 喜天奇(江苏)电子有限公司 | Category 5e unshielded twisted pair cable capable of operating two channels of isolation signals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201359878Y (en) | Symmetric paralleled network cable | |
| CN2650300Y (en) | Audio-video signal wire | |
| CN201177998Y (en) | Non-shielding symmetrical data cable for 10G Ethernet | |
| CN203386534U (en) | Super-six unshielded data communication cable | |
| CN201259799Y (en) | Shielding symmetrical data cable for 10G Ethernet | |
| CA2373503A1 (en) | Low delay skew multi-pair cable and method of manufacture | |
| CN1725385A (en) | Data communication paired cable with shield in double-conduit | |
| CN107230525A (en) | Hyperfrequency cable for digital communication and preparation method thereof | |
| CN201616296U (en) | Data communication twisted-pair cable with shielding layer clamped between double sheaths | |
| CN201749728U (en) | UTP data cable of semi-shielded 10G Ethernet | |
| CN204130257U (en) | A kind of 55 core flame-retardant comprehensive transmission cables | |
| CN106981340A (en) | A kind of non-metallic material coats the unmasked type anti-interference data cable and preparation method of cable core | |
| CN200976292Y (en) | Instrument cable for offshore oil platform | |
| CN202434260U (en) | Novel double-sheath filled super-six unshielded paired cable for data communication | |
| CN107086068A (en) | The data transmission cable and preparation method of a kind of discontinuous discontinuous metal tape cladding | |
| CN202534434U (en) | Unshielded braided or inclined packaged symmetrical data cable used in Ethernet | |
| CN202258537U (en) | Double-jacket I-shaped separated super-six-category unshielded twisted-pair data cable | |
| CN2922074Y (en) | Horizontal paired cable with new shielding structure for super seven class data communication | |
| CN201749706U (en) | Semiconductive EVA plastic screening flexible cable | |
| CN204577128U (en) | Ethernet foamed insulation CMP level unmasked horizontal symmetrical data cable | |
| CN202373319U (en) | Multifunctional composite cable | |
| CN105469898A (en) | Overhead low-loss data transmission line composite cable | |
| CN201489901U (en) | Shielded and unshielded symmetric data cable used in Ethernet | |
| CN202196614U (en) | Cross sleeve multi-pair over six shielded twisted-pair cable | |
| CN208093244U (en) | A kind of shielding wire cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |