CN105261413A - A compression-resistant digital signal cable - Google Patents
A compression-resistant digital signal cable Download PDFInfo
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- CN105261413A CN105261413A CN201510756790.0A CN201510756790A CN105261413A CN 105261413 A CN105261413 A CN 105261413A CN 201510756790 A CN201510756790 A CN 201510756790A CN 105261413 A CN105261413 A CN 105261413A
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- layer
- thermoplastic polyester
- digital signal
- signal cable
- resistant
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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
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Abstract
The invention discloses a compression- resistant digital signal cable comprising a cable core. The cable core is formed by intertwisting quads. The quads are formed by intertwisting insulation wires. Each insulation wire comprises a conductor, a thermoplastic polyester composite inner cover layer, a foam layer and a thermoplastic polyester composite outer cover layer sequentially from the inside to the outside. The external surface of the cable core is provided with a protection layer. The protection layer comprises a non-hygroscopic insulating tape lapped-wrapping layer, a metal sheath, a polyethylene bonding protecting layer, a steel band layer and an oversheath sequentially from the inside to the outside. Slits of the steel band layer integrally wrap the outer side of the polyethylene bonding protecting layer. The steel band layer comprises a basal body. The basal body is sequentially provided with a radiation proof layer, a flame retardation layer, a water proof layer and a wear-resistant layer. The compression-resistant digital signal cable of the invention is obviously raised in compression-resistant performance, and has superior functions such as being shielding, heatproof, moistureproof, compression resistant and anti-animal-biting. Steel bands enable the usability of the steel bands to be improved, the service life to be raised, and enable the cable to be waterproof, radiativity-proof, flame resistant and wear resistant.
Description
Technical field
The present invention relates to a kind of cable, specifically a kind of incompressible digital signal cable.
Background technology
The anti-compression properties of the insulated single wire in existing digital signal cable cable core is lower, TB/T3100 ?2004 standard gauges be decided to be 700N.Cable is laying or in use procedure, insulated single wire is vulnerable to outside destroy, causes insulated single wire insulating barrier to damage, break, thus the conductor of two insulated single wires is contacted with each other, cause digital signal to misinformate; In digital signal cable production process of the prior art, steel band the coated mode mainly adopting wrapped or vertical bag, in wrapped process, gap is had unavoidably between adjacent steel band section, if the external world has water vapor permeable to come in, will enter into cable inside by these gaps, cause cable bad, serious even may cause great electric power accident.Secondly, it does not possess shielding property, and for some special cables, the protective effect that the cable that meeting as this in nuclear cables is subject to serious radiation plays is limited.Moreover it does not have fire resistance, cause its danger coefficient higher, once run into fiery residence, its resistivity is faint, and the intensity of a fire can rapid spread.In addition, its resistance to wear is poor, so cause it easy to wear, and then is reduced in its useful life.
Summary of the invention
The object of the present invention is to provide a kind of incompressible digital signal cable, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of incompressible digital signal cable, comprise cable core, cable core forms by the quad of insulated single wire strand system is stranded, insulated single wire is followed successively by conductor from the inside to the outside, thermoplastic polyester compound endodermis, froth bed, thermoplastic polyester composite skin layer, described conductor is annealed copper conductor, thermoplastic polyester compound endodermis is the endodermis that thermoplastic polyester or fluoroplastics extrude, one polyethylene layer has been extruded outside the endodermis of thermoplastic polyester or fluoroplastics system, froth bed is that polyolefin physics foaming material extrudes and forms froth bed, thermoplastic polyester composite skin layer is the exodermis that thermoplastic polyester or fluoroplastics or HDPE insulating material extrude, cable core outer surface is provided with protective layer, and described protective layer sets gradually non-hygroscopic insulating tape lapping layer, metallic sheath, polyethylene bonding sheath, steel belt layer and oversheath from the inside to the outside, described steel belt layer gap integral coating is outside polyethylene bonding sheath, steel belt layer comprises matrix, matrix is provided with radiation protective layer, flame-retardant layer, watertight composition and wearing layer successively, and watertight composition is melamine core hyperbranched compound coating, and wearing layer is Ni-Al base alloy coat.
As the further scheme of the present invention: described radiation protective layer is sheet lead layer, the thickness of sheet lead layer is between 0.5 micron to 1 micron.
As the present invention's further scheme: described flame-retardant layer is polyolefin coating, polyolefin coating is coated with by one deck polyolefin coatings and forms, and its thickness is between 0.5 micron to 1.5 microns.
As the present invention's further scheme: described Ni-Al base alloy coat is coated with by one Ni-Al base alloy coating and forms, and its thickness is between 1 micron to 3 microns.
As the present invention's further scheme: be provided with desiccant layer between described flame-retardant layer and watertight composition.
As the present invention's further scheme: described oversheath is pe sheath.
Compared with prior art, the invention has the beneficial effects as follows: in cable core of the present invention, insulated single wire is made up of the outer thermoplastic polyester compound endodermis coated successively of conductor and conductor, froth bed, thermoplastic polyester composite skin layer, and its anti-compression properties is improved significantly; By arranging non-hygroscopic insulating tape lapping layer, aluminium sheath or composite sheath, polyethylene bonding sheath and oversheath outside cable core, make the functions such as cable has superior shielding, heatproof, protection against the tide, resistance to compression, anti-animal tooth are stung; And radiation protective layer, flame-retardant layer, watertight composition and wearing layer that steel band has, water proofing property, anti-radiation, anti-flammability and resistance to wear can be brought, steel band serviceability in cable is improved, and useful life improves, and has water proofing property, anti-radiation, anti-flammability and resistance to wear.
Accompanying drawing explanation
Fig. 1 is the structural representation of incompressible digital signal cable;
Fig. 2 is the structural representation of steel band in incompressible digital signal cable;
In figure: 1-insulated single wire, 11-conductor, 12-thermoplastic polyester compound endodermis, 13-froth bed, 14-thermoplastic polyester composite skin layer, 2-cable core, 3-non-hygroscopic insulating tape lapping layer, 4-metallic sheath, 5-polyethylene bonding sheath, 6-steel belt layer, 61-matrix, 62-sheet lead layer, 63-nano-silver layer, 64-polyolefin coating, 65-desiccant layer, 66-melamine core hyperbranched compound coating, 67-Ni-Al base alloy coat, 7-oversheath.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1-2, a kind of incompressible digital signal cable, comprise cable core 2, cable core 2 is twisted by some groups of insulated single wires 1 that the quad of system is stranded to be formed, and insulated single wire 1 is followed successively by conductor 11, thermoplastic polyester compound endodermis 12, froth bed 13, thermoplastic polyester composite skin layer 14 from the inside to the outside.Described conductor 11 is annealed copper conductor, thermoplastic polyester compound endodermis 12 is the endodermis that thermoplastic polyester or fluoroplastics extrude, preferably, one polyethylene layer has been extruded outside the endodermis of thermoplastic polyester or fluoroplastics system, froth bed 13 forms froth bed for polyolefin physics foaming material extrudes, and thermoplastic polyester composite skin layer 14 is the exodermis that thermoplastic polyester or fluoroplastics or HDPE insulating material extrude.
Cable core 2 outer surface is provided with protective layer, and described protective layer sets gradually non-hygroscopic insulating tape lapping layer 3, metallic sheath 4, polyethylene bonding sheath 5, steel belt layer 6 and oversheath 7 from the inside to the outside; Described steel belt layer 6 gap integral coating is outside polyethylene bonding sheath 5, steel belt layer 6 comprises matrix 61, described matrix 61 is provided with radiation protective layer, flame-retardant layer, watertight composition and wearing layer successively, watertight composition is melamine core hyperbranched compound coating 66, and described wearing layer is Ni-Al base alloy coat 67.Melamine core hyperbranched compound coating 66 both ensure that steel band had good water resistance, can absorb formaldehyde again, in time using this cable to install at home, can air in clean room, and improve good living environment.Ni-Al base alloy coat 67 has excellent high-temperature mechanics and antioxygenic property thereof, therefore adopts Ni-Al base alloy as high-temperature wear resistant coating, has resistance to elevated temperatures.
Described radiation protective layer is sheet lead layer 62, and sheet lead layer 62 can stop that X ray and radioactivity are penetrated well, so have good shielding property.The thickness of this sheet lead layer 62 is 0.5 micron or 0.8 micron.Nano-silver layer 63 can also be set on this sheet lead layer 62, because Nano Silver has good sterilization antibacterial effect, air purification effect can be played like this, and Nano Silver has good reflex, common silver-plated glass is 92% to sun light reflectance, and Nano Silver can reach 96.74% to sun light reflectance, reflecting effect is remarkable, add in acrylic emulsion paint Nano Silver it is had good sterilization is antibacterial, reflected sunlight effect.
Described flame-retardant layer is polyolefin coating 64, and this polyolefin coating 64 is coated with by one deck polyolefin coatings and forms, and its thickness is 0.5 micron or 1 micron or 1.5 microns.
Described Ni-Al base alloy coat 67 is coated with by one Ni-Al base alloy coating and forms, and its thickness is 1 micron or 2 microns or 3 microns.
Be provided with desiccant layer 65 between described flame-retardant layer and watertight composition, by arranging this desiccant layer 65, a small amount of steam that infiltration is come in can be absorbed further, reaching the object promoting cable waterproof humidity resistance.
Described oversheath 7 is pe sheath, and its electrical insulating property is good, and chemical stability is strong, and has very low gas permeability and less water absorption, and proportion is little, and non-toxic, meanwhile, plasticity is good, is easy to machine-shaping.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, can also makes a variety of changes under the prerequisite not departing from this patent aim.
Claims (6)
1. an incompressible digital signal cable, comprise cable core, it is characterized in that, cable core forms by the quad of insulated single wire strand system is stranded, insulated single wire is followed successively by conductor from the inside to the outside, thermoplastic polyester compound endodermis, froth bed, thermoplastic polyester composite skin layer, described conductor is annealed copper conductor, thermoplastic polyester compound endodermis is the endodermis that thermoplastic polyester or fluoroplastics extrude, one polyethylene layer has been extruded outside the endodermis of thermoplastic polyester or fluoroplastics system, froth bed is that polyolefin physics foaming material extrudes and forms froth bed, thermoplastic polyester composite skin layer is the exodermis that thermoplastic polyester or fluoroplastics or HDPE insulating material extrude, cable core outer surface is provided with protective layer, and described protective layer sets gradually non-hygroscopic insulating tape lapping layer, metallic sheath, polyethylene bonding sheath, steel belt layer and oversheath from the inside to the outside, described steel belt layer gap integral coating is outside polyethylene bonding sheath, steel belt layer comprises matrix, matrix is provided with radiation protective layer, flame-retardant layer, watertight composition and wearing layer successively, and watertight composition is melamine core hyperbranched compound coating, and wearing layer is Ni-Al base alloy coat.
2. incompressible digital signal cable according to claim 1, is characterized in that, described radiation protective layer is sheet lead layer, and the thickness of sheet lead layer is between 0.5 micron to 1 micron.
3. incompressible digital signal cable according to claim 1 and 2, is characterized in that, described flame-retardant layer is polyolefin coating, and polyolefin coating is coated with by one deck polyolefin coatings and forms, and its thickness is between 0.5 micron to 1.5 microns.
4. incompressible digital signal cable according to claim 3, is characterized in that, described Ni-Al base alloy coat is coated with by one Ni-Al base alloy coating and forms, and its thickness is between 1 micron to 3 microns.
5. the incompressible digital signal cable according to claim 1 or 2 or 4, is characterized in that, be provided with desiccant layer between described flame-retardant layer and watertight composition.
6. incompressible digital signal cable according to claim 5, is characterized in that, described oversheath is pe sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756790.0A CN105261413A (en) | 2015-11-10 | 2015-11-10 | A compression-resistant digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510756790.0A CN105261413A (en) | 2015-11-10 | 2015-11-10 | A compression-resistant digital signal cable |
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| Publication Number | Publication Date |
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| CN105261413A true CN105261413A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510756790.0A Pending CN105261413A (en) | 2015-11-10 | 2015-11-10 | A compression-resistant digital signal cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448854A (en) * | 2016-12-15 | 2017-02-22 | 江苏戴普科技有限公司 | Rail transit flame-retardant network cable |
| CN110364294A (en) * | 2019-07-16 | 2019-10-22 | 安徽徽宁电器仪表集团有限公司 | A kind of computer cable and its preparation process of flame-resistant high-temperature-resistant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08241632A (en) * | 1995-03-06 | 1996-09-17 | Sumitomo Wiring Syst Ltd | Multiple core shield cable and manufacture thereof |
| CN104240821A (en) * | 2013-06-17 | 2014-12-24 | 江苏东强股份有限公司 | Insulating single wire of railway digital signal cable |
| CN204288864U (en) * | 2014-11-18 | 2015-04-22 | 中国西电集团公司 | A kind of high resistance compression railway digital signal cable |
| CN104599780A (en) * | 2015-02-06 | 2015-05-06 | 江苏通鼎光电科技有限公司 | Railway digital signal cable |
| CN204632385U (en) * | 2015-06-10 | 2015-09-09 | 温州万明不锈钢制品有限公司 | For the steel band in cable |
-
2015
- 2015-11-10 CN CN201510756790.0A patent/CN105261413A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08241632A (en) * | 1995-03-06 | 1996-09-17 | Sumitomo Wiring Syst Ltd | Multiple core shield cable and manufacture thereof |
| CN104240821A (en) * | 2013-06-17 | 2014-12-24 | 江苏东强股份有限公司 | Insulating single wire of railway digital signal cable |
| CN204288864U (en) * | 2014-11-18 | 2015-04-22 | 中国西电集团公司 | A kind of high resistance compression railway digital signal cable |
| CN104599780A (en) * | 2015-02-06 | 2015-05-06 | 江苏通鼎光电科技有限公司 | Railway digital signal cable |
| CN204632385U (en) * | 2015-06-10 | 2015-09-09 | 温州万明不锈钢制品有限公司 | For the steel band in cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448854A (en) * | 2016-12-15 | 2017-02-22 | 江苏戴普科技有限公司 | Rail transit flame-retardant network cable |
| CN110364294A (en) * | 2019-07-16 | 2019-10-22 | 安徽徽宁电器仪表集团有限公司 | A kind of computer cable and its preparation process of flame-resistant high-temperature-resistant |
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Application publication date: 20160120 |