CN205122280U - Network data cable - Google Patents
Network data cable Download PDFInfo
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- CN205122280U CN205122280U CN201520810818.XU CN201520810818U CN205122280U CN 205122280 U CN205122280 U CN 205122280U CN 201520810818 U CN201520810818 U CN 201520810818U CN 205122280 U CN205122280 U CN 205122280U
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- cable
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- network data
- data cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The utility model relates to a cable technology field, in particular to network data cable. The utility model discloses a network data cable includes cable pair, first total shielding layer, the interior sheath of semiconduction and oversheath, and the cable pair includes a pair of cable core, and the cable core includes inner conductor, endodermis, foaming layer and exodermis, the utility model discloses in, the inner conductor is used for signal transmission, and the endodermis increases the conductor adhesive force of inner conductor, increases sinle silk structure return loss value, and the foaming layer makes that high frequency signal transmission is low to decline for a short time, and the exodermis prevents that moisture from invading the foaming layer, first total shielding layer is favorable to increasing cable electromagnetic compatibility, and the sheath increase is favorable to the increase to act on according to the anti electrostatic interference of cable in the semiconduction, and the oversheath possesses good physical strength and weatherability to and extensive corrosion resistance and noninflammability, effectively protect inner structure, the utility model discloses have high flame retardant and signal transmission low -loss, characteristic that electromagnetic compatibility is strong.
Description
Technical field
the utility model relates to technical field of cables, particularly a kind of network data cable.
Background technology
Since 20th century the mid-80s, along with the high speed development of data communication and information technology, the fast development of network technology and improving constantly of computing power, the requirement of people to comprehensive wiring system performance is also more and more higher, current network transmission speed from before 10Mb bring up to 100Mb, and gigabit LAN technology, network rate improves day by day, mean the raising of operating frequency, operating frequency is higher, more easily produces electromagnetic radiation and electromagnetic coupled.Can constantly have new electromagnetic interference source to produce in surrounding environment, the radiation of the higher generation of network operating frequencies is also more serious, and the equilibrium response of unshielded data cable has been not enough to offset the electromagnetic radiation of express network itself and the electromagnetic interference in the external world simultaneously.Shield technology then can effectively prevent outside electromagnetic interference from entering cable inside (kelvin effect of metal screen layer), stops cable internal signal to external radiation (reflection effect of metal screen layer) simultaneously.
Being on the increase in addition along with high-rise intelligent building, require also more and more higher to the fire line for building interior data cable, common data cable uses polyethylene as transmission medium body, this kind of material medium constant is 2.1, when high-frequency signal transmits, its signal attenuation is large, and cable affects large especially by environment for use temperature, when being in hot environment, the decay of its Signal transmissions increases with the increase of temperature, do not possess anti-flammability simultaneously, this kind of cable, as inner at skyscraper, can bring serious hidden danger when a fire.But traditional network data cable is for reaching flame retardant effect, use low-smoke non-halogen flame-retardant oversheath, this jacket material possesses certain flame retardant efficiency, but its weatherability is not good, normal serviceability temperature scope is-30 DEG C to 105 DEG C, and data cable is destructurized, affects data transmission performance.
Summary of the invention
in order to overcome deficiency described above, the purpose of this utility model be to provide a kind of there is high flame retardant and Signal transmissions low-loss, network data cable that Electro Magnetic Compatibility is strong.
the technical scheme in the invention for solving the technical problem is:
a kind of network data cable, wherein, comprise cable pair, first total screen, semiconductive sheath and oversheath, described cable pair comprises a pair cable core, described cable core comprises inner wire, endodermis, foaming layer and exodermis, described endodermis is coated on the outer surface of described inner wire, and described foaming layer is coated on the outer surface of described endodermis, and described exodermis is coated on the outer surface of described foaming layer; The coated cable pair described in several of described first total screen; Described semiconductive sheath is coated on the outer surface of described first total screen; Described oversheath is coated on the outer surface of described semiconductive sheath.
improve as one of the present utility model, also comprise channelizing line, the described first coated described cable pair of total screen and described channelizing line.
as further improvement of the utility model, described cable pair also comprises sub-shield, and described sub-shield is coated on the outer surface of described cable pair, the exterior surface of described channelizing line and described sub-shield.
further improve as of the present utility model, also comprise second total screen, described second total screen is coated on the outer surface of described semiconductive sheath, and described oversheath is coated on the outer surface of described second total screen.
further improve as of the present utility model, described inner wire adopts single oxygen-free copper conductor.
further improve as of the present utility model, described endodermis and exodermis adopt perfluoroethylene-propylene material; Described oversheath also adopts perfluoroethylene-propylene material; Described foaming layer adopts perfluoroethylene-propylene high-pressure physics to fill nitrogen foaming structure.
further improve as of the present utility model, described sub-shield adopts two-sided conductive aluminum foil.
further improve as of the present utility model, described channelizing line is the intertwist body of multiply tinned wird and holding wire.
further improve as of the present utility model, described first total screen and second total screen adopt tin-coated copper woven mesh structure.
further improve as of the present utility model, described semiconductive sheath uses semiconductive polythene material
in the utility model, inner wire is used for Signal transmissions, and endodermis increases the conductor adhesive force of inner wire, increase core structure return loss value, foaming layer makes high-frequency signal transmit lowly to decline little, reduce costs, exodermis prevents moisture from invading foaming layer, is conducive to the stability of core characteristic impedance; First total screen is conducive to increasing cable Electro Magnetic Compatibility, the increase of semiconductive sheath is conducive to increasing the antistatic interference effect of data cable, oversheath possesses good physical strength and weatherability, and corrosion resistance and noninflammability widely, carries out available protecting to internal structure; Network data cable of the present utility model has high flame retardant and Signal transmissions low-loss, characteristic that Electro Magnetic Compatibility is strong.
Accompanying drawing explanation
for ease of illustrating, the utility model is described in detail by following preferred embodiment and accompanying drawing.
fig. 1 is structural representation of the present utility model;
reference numeral: 1-cable pair, 11-inner wire, 12-endodermis, 13-foaming layer, 14-exodermis, 2-sub-shield, the total screen of 3-first, 4-semiconductive sheath, the total screen of 5-second, 6-oversheath, 7-channelizing line.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
as shown in Figure 1, a kind of network data cable of the present utility model comprises the total screen 3 of cable pair 1, first, semiconductive sheath 4 and oversheath 5.
in the utility model, cable pair 1 comprises a pair cable core, this cable core comprises inner wire 11, endodermis 12, foaming layer 13 and exodermis 14, endodermis 12 is coated on the outer surface of inner wire 11, foaming layer 13 is coated on the outer surface of endodermis 12, and exodermis 14 is coated on the outer surface of foaming layer 13; First total screen 3 several cable pairs 1 coated; Semiconductive sheath 4 is coated on the outer surface of first total screen 3; Oversheath 6 is coated on the outer surface of semiconductive sheath 4.
in the utility model, inner wire 11 is for Signal transmissions, endodermis 12 increases the conductor adhesive force of inner wire 11, increase core structure return loss value, foaming layer 13 make high-frequency signal transmit low decline little, reduce costs, exodermis 14 prevents moisture from invading foaming layer 13, is conducive to the stability of core characteristic impedance; First total screen 3 is conducive to increasing cable Electro Magnetic Compatibility; semiconductive sheath 4 increase is conducive to increasing the antistatic interference effect of data cable; oversheath 6 possesses good physical strength and weatherability, and corrosion resistance and noninflammability widely, carries out available protecting to internal structure.
further, the first coated cable pair 1 of total screen 3 and channelizing line 7.
further, cable pair 1 also comprises sub-shield 2, and sub-shield 2 is coated on the outer surface of cable pair 1, the exterior surface of channelizing line 7 and sub-shield 2.
again further, the utility model also comprises the outer surface that the total screen 5 of second total screen 5, second is coated on semiconductive sheath 4, and oversheath 6 is coated on the outer surface of second total screen 5.
the utility model provides a kind of execution mode of inner wire 11, and inner wire 11 adopts single oxygen-free copper conductor.
the utility model provides a kind of execution mode of endodermis 12 and exodermis 14, and endodermis 12 and exodermis 14 adopt perfluoroethylene-propylene material.
the utility model provides a kind of execution mode of oversheath 6, and oversheath 6 also adopts perfluoroethylene-propylene material.
the utility model provides a kind of execution mode of foaming layer 13, and foaming layer 13 adopts perfluoroethylene-propylene high-pressure physics to fill nitrogen foaming structure.
the utility model provides a kind of execution mode of sub-shield 2, and sub-shield 2 adopts two-sided conductive aluminum foil.
the utility model provides a kind of execution mode of channelizing line 7, and channelizing line 7 is the intertwist body of multiply tinned wird and holding wire.
the utility model provides a kind of execution mode of first total screen 3 and second total screen 5, and first total screen 3 and second total screen 5 adopt tin-coated copper woven mesh structure.
the utility model provides the one of semiconductive sheath 4 to implement, and semiconductive sheath 4 uses semiconductive polythene material.
the utility model provides a kind of embodiment, and a kind of network data cable of the present utility model comprises cable pair 1, the total screen 5 of the total screen of sub-shield 2, first 3, second, semiconductive sheath 4 and oversheath 6; Cable pair 1 is that employing a pair cable core completes by a constant pitch twisting, and cable core comprises inner wire 11 and is coated on the endodermis 12 of inner wire 1 outer surface, and foaming layer 13 and exodermis 14.Inner wire 1 adopts single copper free wire, and low frequency signal transmission attenuation is little, and endodermis 12 uses the bright alkene material of the perfluoroethylene of 0.05mm to extrude in inner wire 11 surface, and this structure is conducive to increasing conductor adhesive force, increases core structure return loss value.Foaming layer 3 adopts perfluoroethylene-propylene material inflated with nitrogen physical blowing to extrude in endodermis 2 surface, and its foam degrees reaches more than 50%, and this insulating material dielectric constant is little and stable, possesses resistant of high or low temperature requirement, foam structure is even, and high-frequency signal transmission is low to decline little, reduces costs.Exodermis 4 uses perfluoroethylene-propylene material to mix with different colours perfluoroethylene-propylene bed material look mother and extrudes in foaming layer 3 surface, and form different colours line pair, this structure prevents moisture from invading foaming layer, is conducive to the stability of core characteristic impedance.The total screen 3 of separated-shielding 2, first, semiconductive sheath 4 and second total screen 6 is provided with between cable pair 1 and oversheath 10.Sub-shield 2 is made up of the two-sided conductive aluminum foil of 50um, vertical is wrapped in twisted pair wire surface, reduces the mutual interference phenomenon between each holding wire pair further.Channelizing line 7 is formed by multiply tin-coated copper skein silk system, assembles cable with pair twist core, contacts with sub-shield 2 conducting surface, external interference signals is conducive to import the earth, this structure is conducive to being welded in above terminal equipment, electromagnetism noise signal will be disturbed to import the earth, reduce interference.First total screen 3 is coated on screen 2 and channelizing line 7 surface with tin-coated copper mesh grid form in 360 degree, plays comprehensive Electro Magnetic Compatibility effect.Protect 4 use semiconductive polythene materials in semiconductive and be coated on first total screen 3 surface to extrude form, play antistatic property.Second total screen 5 is coated on semiconductive sheath 4 surface with tin-coated copper mesh grid form 360 degree, and second total its density of screen 5 reaches more than 70%, and this structure strengthens the overall electromagnetic compatibility of cable further.Oversheath 6 selects the bright alkene material of perfluoroethylene, and this material possesses good physical strength and weatherability, and corrosion resistance and noninflammability widely.
cable core of the present utility model uses physical blowing perfluoroethylene-propylene insulating barrier on core structure, core average dielectric constant is reduced with this structure, meet the low attenuation requirement of Signal transmissions, improve core transmission rate, reaching under same transmission performance condition, reduce core outside dimension, save insulating material in a large number, thus reduce production cost.Traditional local area network (LAN) data cable adopts real core polyolefin insulating, transmission rate is 65%, and do not possess flame retardant efficiency, the utility model cable uses perfluoroethylene-propylene physical foam insulation, its foaming reaches 50%, transmission rate is 80%, insulating material use amount is 50% of real core insulating material use amount, test its maximum attenuation value when frequency 500MHz and be less than 45.3dB/100m, near-end cross minimum value is 36.8dB, at frequency 1KHz mutual capacitance≤5.6pF/100m, dielectric strength AC, 15KV, 5min do not puncture.Insulation resistance >=5000M Ω .km, surface of insulating layer extrudes one deck perfluoroethylene-propylene exodermis simultaneously, makes its line more stable to structure, and characteristic impedance meets 100 ± 15 Ω at 500MHz.
the utility model is promote Electro Magnetic Compatibility on shielding construction, take separated-shielding and always shield the form combined, namely often pair of line signal carries out aluminium foil separated-shielding separately, always to be shielded with mesh grid by channelizing line and be effectively combined, this structure possesses good Electro Magnetic Compatibility.
in addition, for reducing data cable operationally by electrostatic interference phenomenon, structurally face increases one deck semiconductive sheath, namely one deck semiconductive polyethylene layer is extruded on total screen surface, simultaneously for reducing from external electromagnetic wave interference, increase the total screen of one deck on semiconductive sheath surface, namely use metal net 360 degree to be coated on semiconductive sheath surface.
again and, the utility model data cable insulating material and sheath material all make perfluoroethylene-propylene, this material oxygen index reaches more than 95, do not burn, its light transmittance is more than 90%, in fire place there is not secondary harmfulness in this material data cable, and energy effective guarantee personal security and property safety, this cable overall flame performance meets the requirement of Underwriters Laboratories CMP level fire resistance.
of the present utility model is that one possesses low transmission Decay Rate, strong electromagnetic compatibility and antistatic behaviour, insulating material and sheath have higher physical mechanical strength, there is resistance to various chemical solvent wide especially and oils corrosivity function simultaneously, energy Long-Time Service temperature range in-90 DEG C to 200 DEG C environment, and has the network data cable of not burned effect.This cable is different from the network data cable with traditional above cable core structure at materials'use, traditional cable uses real core polyethylene as transmission medium body, this kind of material medium constant is 2.1, when high-frequency signal transmits, its signal attenuation is large, and cable affects large especially by environment for use temperature, when being in hot environment, the decay of its Signal transmissions increases with the increase of temperature, does not possess anti-flammability simultaneously.Network data cable of the present utility model adopts three-layer co-extruded formula physical blowing polyfluorinated ethylene plastic to insulate as signal transmission medium, its oxygen index is greater than 95, dielectric constant is 1.57, possesses high temperature resistant and noninflammability feature, this cable is when temperature in environment for use reaches about 200 DEG C, and its cable structure can not change.
the utility model uses the three-layer co-extruded formula of physical blowing on core structure, fill nitrogen synchronizer by high-pressure physics to complete insulated wire cores and extrude, namely extrude one deck perfluoroethylene-propylene endodermis on conductor while, complete perfluoroethylene-propylene foaming layer, and synchronously extrude one deck perfluoroethylene-propylene exodermis on foaming layer surface, prevent moisture from invading foaming layer, guarantee that signal transmission performance is more reliable.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a network data cable, it is characterized in that, comprise cable pair, first total screen, semiconductive sheath and oversheath, described cable pair comprises a pair cable core, described cable core comprises inner wire, endodermis, foaming layer and exodermis, described endodermis is coated on the outer surface of described inner wire, and described foaming layer is coated on the outer surface of described endodermis, and described exodermis is coated on the outer surface of described foaming layer; The coated cable pair described in several of described first total screen; Described semiconductive sheath is coated on the outer surface of described first total screen; Described oversheath is coated on the outer surface of described semiconductive sheath.
2. a kind of network data cable according to claim 1, is characterized in that, also comprise channelizing line, the described first coated described cable pair of total screen and described channelizing line.
3. a kind of network data cable according to claim 2, is characterized in that, described cable pair also comprises sub-shield, and described sub-shield is coated on the outer surface of described cable pair, the exterior surface of described channelizing line and described sub-shield.
4. a kind of network data cable according to claim 3, is characterized in that, also comprises second total screen, and described second total screen is coated on the outer surface of described semiconductive sheath, and described oversheath is coated on the outer surface of described second total screen.
5. a kind of network data cable according to claim 4, is characterized in that, described inner wire adopts single oxygen-free copper conductor.
6. a kind of network data cable according to claim 5, is characterized in that, described endodermis and exodermis adopt perfluoroethylene-propylene material; Described oversheath also adopts perfluoroethylene-propylene material; Described foaming layer adopts perfluoroethylene-propylene high-pressure physics to fill nitrogen foaming structure.
7. a kind of network data cable according to claim 6, is characterized in that, described sub-shield adopts two-sided conductive aluminum foil.
8. a kind of network data cable according to claim 7, is characterized in that, described channelizing line is the intertwist body of multiply tinned wird and holding wire.
9. a kind of network data cable according to claim 8, is characterized in that, described first total screen and second total screen adopt tin-coated copper woven mesh structure.
10. a kind of network data cable according to claim 9, is characterized in that, described semiconductive sheath uses semiconductive polythene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810818.XU CN205122280U (en) | 2015-10-20 | 2015-10-20 | Network data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520810818.XU CN205122280U (en) | 2015-10-20 | 2015-10-20 | Network data cable |
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| Publication Number | Publication Date |
|---|---|
| CN205122280U true CN205122280U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520810818.XU Active CN205122280U (en) | 2015-10-20 | 2015-10-20 | Network data cable |
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| CN (1) | CN205122280U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710681A (en) * | 2017-02-23 | 2017-05-24 | 湖北宇洪光电实业有限公司 | 6<+> digital communication cable and manufacturing method therefor |
| CN107731390A (en) * | 2017-09-18 | 2018-02-23 | 维沃移动通信有限公司 | A kind of data wire and preparation method thereof |
| CN112530632A (en) * | 2020-11-10 | 2021-03-19 | 杭州兴发科技股份有限公司 | Salt mist resistant data cable |
-
2015
- 2015-10-20 CN CN201520810818.XU patent/CN205122280U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710681A (en) * | 2017-02-23 | 2017-05-24 | 湖北宇洪光电实业有限公司 | 6<+> digital communication cable and manufacturing method therefor |
| CN107731390A (en) * | 2017-09-18 | 2018-02-23 | 维沃移动通信有限公司 | A kind of data wire and preparation method thereof |
| CN112530632A (en) * | 2020-11-10 | 2021-03-19 | 杭州兴发科技股份有限公司 | Salt mist resistant data cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 402, room 11, 510000 software Road, Guangdong, Guangzhou, Tianhe District Patentee after: Guangzhou Yuhong Polytron Technologies Inc Address before: 511450, No. two, six Industrial Park Street, two fertile farmland Industrial Park, Baiyun District, Guangdong, Guangzhou Patentee before: GUANGZHOU CITY YU-HUNG ELECTRIC WIRE & CABLE INDUSTRY CO., LTD. |