CN207624420U - High fire-retardance high frequency active cable for digital communication - Google Patents
High fire-retardance high frequency active cable for digital communication Download PDFInfo
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- CN207624420U CN207624420U CN201721296101.3U CN201721296101U CN207624420U CN 207624420 U CN207624420 U CN 207624420U CN 201721296101 U CN201721296101 U CN 201721296101U CN 207624420 U CN207624420 U CN 207624420U
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- digital communication
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- 238000004891 communication Methods 0.000 title claims abstract description 26
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 239000003063 flame retardant Substances 0.000 claims abstract description 29
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 6
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 241000206672 Gelidium Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 108010059642 isinglass Proteins 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model discloses a kind of high fire-retardance high frequency active cable for digital communication, four couple for constituting cable core is located in four separated regions of cross separation frame line group, is coated with cable shielding layer, flame-retardant layer and fire-retardant oversheath on cable core successively inside-out；The overhanging separation fin of cross separation frame four is mutually perpendicular to intersect and adjacent two separation airfoil root is connected with arc surface transition, the surface of cross separation frame is provided with separation frame shielded layer, each flap apex of cross separation frame is in contact with cable shielding layer；The center of cross separation frame is provided with power cord pair, and in power cord to being coated with power cord to sheath, power cord is to including two mutually twisted power supply core wires, power supply core insulation is coated in each power supply core wire.The high fire-retardance high frequency active cable for digital communication, not only the construction of cable is stable and firm, has high flame resistance and good shield effectiveness, and the dual conduction function with digital signal and electric power.
Description
Technical field
The utility model is related to a kind of cable for digital communication more particularly to a kind of with power supply call wire and separate skeleton
Digital signal cable.
Background technology
With the continuous development of the high speed development and network technology of the communication technology and IT industry, people are to synthesis
The requirement of wiring system is also more and more, the world today, and information undoubtedly has become a kind of critical resource, it must be very smart
Really, it is promptly transmitted between a variety of communication apparatus, data exchange processing equipment and display management device, as wherein communicating
High-frequency digital cable apart from longest physical transmission medium is widely used in government, financial institution, military affairs, medical treatment, consulting industry
Equal high-tech, high Information application department inside buildings, the requirement for the safety, confidentiality of cable is just particularly stringent.
The quality of the performance indicators such as the high-frequency of cable for digital communication, high-speed performance and its impedance, decaying and cross-talk is tight
Close association.In the impedance behavior of cable for digital communication, characteristic impedance is mainly by dielectric constant, insulated electric conductor, conductor diameter
With the influence of unit length twist number, and cable input impedance then largely by conductor diameter, between line group mutually
Position and cable conductor pitch structure are associated.Input impedance will all be caused to line group structure, conductor mutual alignment spacing
Variation, interconductor capacitance value and pad value deviate its ideal value, all obviously cause the fluctuation and decline of cable transmission performance.Cause
This, influence the indexs such as the impedance, decaying and cross-talk of high-frequency digital communication cable performance with its line group position and structure stability
It is directly linked, in other words, only ensures line group mutual alignment and stable structure, just can guarantee the high-performance of cable.
Paired cable is the most frequently used a kind of transmission medium in generic cabling engineering, and the highest a kind of number of cost performance at present
Word communication cable.It is to be twisted into four pairs two-by-two to line group by eight insulation core wires, then by this four couple to line group twisted synthesizing cable, most
After squeeze into oversheath and finished cable be made.To improve the transmission performance of data cable, people develop with ten splitting of words bones
The data cable of frame, the area of space which accommodates space interval in oversheath to line group at four are each
A pair of of line group is equipped in region, this structure can effectively prevent to the mutually nested of line group, but four due to crossing skeleton are outer
It is straight panel structure to stretch skeleton fin, and the contact between line group and corresponding side skeleton fin is point contact, and it is a certain to be located at crossing skeleton
Only two points of cross is leaned on to be supported line group in separated region, it is clear that its stability is still insufficient, and this branch
Support can make to be more susceptible to squeeze deformation and displacement to line group instead to forming line group larger extruding contact stress.Cross simultaneously
There are larger gaps between skeleton fin outer end and cable cover(ing) internal diameter, cause the positioning performance of crossing skeleton insufficient, cross bone
Radial displacement and play may inherently occur in cable jacket for frame, cause space size shared by each pair of line group differ or
Change at any time, causes to the additional extruding of line group and drawing-off, and four pairs of existing crossing skeleton pair does not shield work to line group
With the signal interference and cross-talk between line group cannot be obstructed.
The application range of cable for digital communication is very extensive, and use environment is also extremely complex, both large-scale just like subway etc. to hand over
Logical engineering, and be widely used and carry out the transmission exchange of data between communication apparatus, many use occasions do not require nothing more than data letter
Number cable has higher flame retardant property, and requires signal cable while transmission data signal, can transmit power supply electricity
Power.And existing communication cable and pernicious gas is easily generated when fire occurs without high flame resistance, it transmits
Signal is vulnerable to interference and destruction；Various communication apparatus, data exchange processing equipment and display management device generally require simultaneously
Working power is provided, this just needs in addition to lay power cable, not only increases construction workload, but also bring carrying for cable cost
It is high.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of high fire-retardance high frequency active cable for digital communication, it is not
Only the construction of cable is stable and firm, and has high flame resistance and good shield effectiveness.
In order to solve the above-mentioned technical problem, the high fire-retardance high frequency active cable for digital communication of the utility model, including cable core,
And it is filled in the cross separation frame in cable core, four couple for constituting cable core is located at line group four separations of cross separation frame
In region, mutually it is twisted, is coated successively inside-out on the cable core wired by two insulation core wires per a pair of line group
Cable shielded layer, flame-retardant layer and fire-retardant oversheath；The overhanging separation fin of the cross separation frame four is mutually perpendicular to intersect
And adjacent two are separated airfoil root and are connected with arc surface transition, and the surface of cross separation frame is provided with separation frame shielded layer, ten
Each flap apex of splitting of words frame is in contact with cable shielding layer；The center of cross separation frame is provided with power cord
Right, in power cord to being coated with power cord to sheath, power cord is to including two mutually twisted power supply core wires, at each
Power supply core wire is coated with power supply core insulation.
Preferably, cross separation frame surface is bonded aluminium foil layer or copper foil layer and forms separation frame shielded layer.
Preferably, the separation frame shielded layer is in contact with cable shielding layer.
Preferably, the cable shielding layer is plastic-aluminum combined layer.
Preferably, the flame-retardant layer is flame-retardant mica tape looping layer.
Preferably, the fire-retardant outer jacket is that low smoke halogen-free flame-retardant polyolefin extrudes layer.
In said structure, four due to cross separation frame are separated airfoil root and are connected with arc surface transition face, and ten
The flap apex of splitting of words frame is in contact with cable shielding layer, and the arc radius of the arc surface transition face connects with to line group outer diameter
Closely, make between the two mutually close to and forming face contact fixed bearing so that cross separation frame to line group to forming reliable gripping
Bearing is not likely to produce displacement and vibration to line group, and cable core structure keeps more reliable and more stable location status；Ten splittings of words simultaneously
The flap apex of frame is in contact with cable shielding layer, also greatly strengthens the stability of cable structure, effectively avoids external force to line
Crimp caused by cable；Therefore the utility model is made from location status and contour structures etc. to playing to consolidate to line group
With to ensure that the stability of cable parameters, making the working frequency of cable be improved, data transmission bauds is added
Soon.Again due to being equipped with power cord pair in the center of cross separation frame so that the signal cable had both had the biography of digital signal
Transmission function, and there is electric power conduction function, facilitate making to produce, reduces consumptive material, efficiency more convenient when being laid with
It is high.Due also to cross separation frame, surface is equipped with separation frame shielded layer, and separation frame top is in contact with cable shielding layer again, from
And constitute to the individually shielded of group, both avoiding interfering with each other between line group in each marker space, also prevent extraneous magnetic field
Interference to cable and to line group has fabulous shield effectiveness, using the shielding construction, processes, carries convenient for the making of cable
The high whole anti-electromagnetic interference capability of cable, avoids the error code phenomenon in data transmission.It is coated in cable conductor fire-retardant
Flame retardant coating and fire-retardant oversheath effectively prevent high temperature and flame from being invaded to cable core, and high temperature and flame is avoided to invade the construction of cable pair
The influence and destruction of transmission performance make cable have preferable anti-flammability, are more suitable in intelligent Building wiring and data center,
It is safe and reliable.
Description of the drawings
With reference to the accompanying drawings and detailed description to the utility model high fire-retardance high frequency active cable for digital communication make into
One step explanation.
Fig. 1 is that a kind of cross section structure of specific implementation mode of the utility model high fire-retardance high frequency active cable for digital communication shows
It is intended to.
In figure, 1-cable core, 2-are to line group, 3-insulation core wires, 4-cross separation frames, 5-separation frame shielded layers, 6-
Cable shielding layer, 7-flame-retardant layers, 8-fire-retardant oversheaths, 9-power cords to, 10-power supply core wires, 11-power supply core wires
Insulating layer, 12-power cords are to sheath.
Specific implementation mode
High fire-retardance high frequency active cable for digital communication as shown in Figure 1 coats on the active digital signal cable cable core 1
There is cable shielded layer 6, is coated with flame-retardant layer 7 again on cable shielded layer 6, fire-retardant outer shield is coated on flame-retardant layer 7
Set 8.Cable shielding layer 6 is formed so that aluminium-plastic tape is wrapped, and it is wrapped that compound copper-plastics band can also be used；Flame-retardant layer 7 is by fire-retardant
The mica content of fire-resistant isinglass belt looping layer, flame-retardant mica tape is more than 55, and fire-retardant oversheath 8 is more than 50 using oxygen index (OI)
Low smoke halogen-free flame-retardant polyolefin extrude, the thickness of fire-retardant oversheath 8 is 0.6mm.
Cross separation frame 4 is also filled in cable core 1, four fins which is mutually perpendicular to intersect are formed
Four marker spaces are equipped with a pair of of line group 2 in each separated region, are mutually twisted by two insulation core wires 3 per a pair of line group
It closes.The root of four overhanging separation fins is connected with arc surface transition, and the radius of the arc surface mutually fits line group outer diameter
It answers.The top of four fins is in contact with the medial surface of cable shielding layer 6.It is equipped on the frame body surface of cross separation frame 4 certainly
It glues aluminium foil or copper foil layer and forms separation frame shielded layer 5, the separation frame shielded layer 5 corresponding to each separated region and cable screen
Layer 6 is covered to constitute to line group shielding space.It is embedded with power cord pair 9 in the center of cross separation frame 4, the power cord pair 9
It is used for transmission connection power supply, power cord pair 9 includes two mutually twisted power supply core wires 10, each 10 appearance of power supply core wire
It is coated with power supply core insulation 11, power supply is coated with to sheath 12 again outside power cord pair 9.
It is that the specific embodiment of the utility model is illustrated and illustrated, but the utility model is not restricted to above
Above example, it is all according to equivalent transformation made by the utility model basic principle, all should the scope of protection of the utility model it
It is interior.
Claims (6)
1. a kind of high fire-retardance high frequency active cable for digital communication, including cable core（1）, and it is filled in cable core（1）In cross point
Shelf（4）, constitute cable core（1）Four couples to line group（2）It is located at cross separation frame（4）Four separated regions in, it is each
To line group（2）By two insulation core wires（3）Mutually it is twisted, it is characterised in that：The cable core（1）On inside-out successively
It is coated with cable shielding layer（6）, flame-retardant layer（7）With fire-retardant oversheath（8）；The cross separation frame（4）Four overhanging
Separation fin is mutually perpendicular to intersect and adjacent two separation airfoil root is connected with arc surface transition, in cross separation frame（4）Table
Face is provided with separation frame shielded layer（5）, cross separation frame（4）Each flap apex with cable shielding layer（6）It is in contact；Ten
Splitting of words frame（4）Center be provided with power cord pair（9）, in power cord pair（9）Power cord is coated with to sheath（12）,
Power cord pair（9）Including two mutually twisted power supply core wires（10）, in each power supply core wire（10）It is coated with power supply core
Line insulating layer（11）.
2. high fire-retardance high frequency active cable for digital communication according to claim 1, it is characterised in that：The cross separation frame
（4）Surface is bonded aluminium foil layer or copper foil layer and forms separation frame shielded layer（5）.
3. high fire-retardance high frequency active cable for digital communication according to claim 1, it is characterised in that：The separation frame shielding
Layer（5）With cable shielding layer（6）It is in contact.
4. high fire-retardance high frequency active cable for digital communication according to claim 1, it is characterised in that：The cable shielding layer
（6）For plastic-aluminum combined layer.
5. high fire-retardance high frequency active cable for digital communication according to claim 1, it is characterised in that：The flame-retardant layer
（7）For flame-retardant mica tape looping layer.
6. high fire-retardance high frequency active cable for digital communication according to claim 1, it is characterised in that：The fire-retardant oversheath
（8）Layer is extruded for low smoke halogen-free flame-retardant polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721296101.3U CN207624420U (en) | 2017-10-10 | 2017-10-10 | High fire-retardance high frequency active cable for digital communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721296101.3U CN207624420U (en) | 2017-10-10 | 2017-10-10 | High fire-retardance high frequency active cable for digital communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207624420U true CN207624420U (en) | 2018-07-17 |
Family
ID=62825900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721296101.3U Active CN207624420U (en) | 2017-10-10 | 2017-10-10 | High fire-retardance high frequency active cable for digital communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207624420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110648788A (en) * | 2019-09-24 | 2020-01-03 | 深圳市英泰格瑞科技有限公司 | High flame retardant network cable |
-
2017
- 2017-10-10 CN CN201721296101.3U patent/CN207624420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110648788A (en) * | 2019-09-24 | 2020-01-03 | 深圳市英泰格瑞科技有限公司 | High flame retardant network cable |
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