CN105719771A - Photoelectric cable with coaxial electric units - Google Patents
Photoelectric cable with coaxial electric units Download PDFInfo
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- CN105719771A CN105719771A CN201610120212.2A CN201610120212A CN105719771A CN 105719771 A CN105719771 A CN 105719771A CN 201610120212 A CN201610120212 A CN 201610120212A CN 105719771 A CN105719771 A CN 105719771A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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Abstract
The invention belongs to the technical field of cables, and particularly relates to a photoelectric cable with coaxial electric units. The photoelectric cable comprises a cable core, a shielding layer for coating the cable core and an outer sheath arranged on the exterior of the shielding layer in an extruding and coating manner, wherein the cable layer comprises a cable core inner layer and a cable core outer layer positioned outside the cable core inner layer; the photoelectric cable is characterized in that the cable core inner layer comprises a reinforced layer positioned in the center, multiple inner layer coaxial electric units distributed along the outer edge of the reinforced part and filling ropes positioned in outer gaps of the adjacent inner layer coaxial electric units; and the cable core outer layer comprises multiple outer layer coaxial electric units, multiple optical cable units, multiple solid filling strips, a ground wire and tearing ropes. The invention discloses a manufacturing method for the photoelectric hybrid cable. The photoelectric cable has the main following beneficial effects of wider application, better shielding performance, better mechanical performance, smaller diameter, lower cost, easier construction and simple manufacturing method.
Description
The application is that name is called: photoelectric mixed cable containing coaxial electrical unit and manufacture method thereof, the applying date are: December in 2014 18 days, application number be: the divisional application of the patent of invention of 201410785982.X.
Technical field
The invention belongs to technical field of cables, especially relate to optical cable and the manufacture method thereof with coaxial electrical unit.
Background technology
Along with developing rapidly of the communications industry, the application of photoelectric mixed cable is increasing, has been also carried out substantial amounts of research and development for photoelectric mixed cable both at home and abroad.
As name is called: one is resistance to draws high fire-retardant optoelectronic composite cable, application number is: the Chinese patent of CN201310323268.4 discloses a kind of resistance to draws high fire-retardant optoelectronic composite cable, it includes optical cable unit 1, cable unit 2, tension cable 3, band 4 and fire-retardant oversheath 6, cable unit 2 and tension cable 3 are centered around the outside of optical cable unit 1, the outside of cable unit 2 and tension cable 3 is coated with band 4 and fire-retardant oversheath 6 from inside to outside successively, it has high flame resistance, can effectively stop the expansion of the intensity of a fire, enhance the tensile property of cable, and it is easy for installation, economical and practical.
And for example name is called: a kind of optoelectronic composite cable, application number be: the Chinese patent of CN201210365836.2 discloses a kind of optoelectronic composite cable, including cable inner core and the cable outer layer wrapped in outside cable inner core, described cable inner core includes shielding core, optical cable and wire core, shielding core, optical cable and wire core twist together, and extrude inner sheath on cable inner core；Cable outer layer is followed successively by fibrage armor, oversheath from inside to outside；It has the stretching, bending and the twisting resistance that are resistant to repeat；Sheath is durable in use, can bear high-speed starting and braking；The present invention is lightweight, volume is little, it is adaptable to dexterous and efficient crane；The Machine Movement Process such as frequently movement, bending should there is good signal transmission performance.
For another example name is called: a kind of multi-core photoelectric composite cable, application number is: the Chinese patent of CN201310212647.6 discloses a kind of multi-core photoelectric composite cable, it includes oversheath (1), center reinforcement (2), tight tube fiber (3), electric lead (6), waterstop (7) and fill out core (8), the cylindrical structure that the oversheath (1) that fire retardant polyolefin is made is hollow, center reinforcement (2) is coaxially disposed in the center of oversheath (1), many tight tube fibers (3), electric lead (6) and fill out core (8) and be arranged between oversheath (1) and center reinforcement (2), the outside of every tight tube fiber (3) is provided with reinforcement (4) and subunit jacket (5), electric lead (6) is to be closed by multiply fine copper skein silk to form, tight tube fiber (3), electric lead (6) and fill out the appearance of core (8) and be coated with waterstop (7).It is good that it has block-water performance, and tensile strength is high, easy construction, and cost of manufacture is low, and light harvesting fibre, transmission of electricity copper cash, in one, can transmit optical signal and electric power simultaneously.
But, all there is following defect in above-mentioned optoelectronic composite cable: transmitting electricity too much to quantity, structure is excessively complicated, and external diameter is thicker, relatively costly.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to disclose the optical cable with coaxial electrical unit and manufacture method thereof, they realize by the following technical solutions.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is by many outer layer coaxial electrical unit, many optical cable units, many hatching solid bars, ground wire, tear rope to constitute, outer layer coaxial electrical unit, optical cable unit, hatching solid bar is distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit, or ground wire is arranged in the external series gap of adjacent hatching solid bar；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit, or tearing rope and be arranged in the external series gap of adjacent hatching solid bar；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is by many outer layer coaxial electrical unit, a piece optical cable unit, many hatching solid bars, ground wire, tear rope to constitute, outer layer coaxial electrical unit, optical cable unit, hatching solid bar is distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit, or ground wire is arranged in the external series gap of adjacent hatching solid bar；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit, or tearing rope and be arranged in the external series gap of adjacent hatching solid bar；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is by many outer layer coaxial electrical unit, many optical cable units, a piece hatching solid bar, ground wire, tear rope to constitute, outer layer coaxial electrical unit, optical cable unit, hatching solid bar is distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or tearing rope and being arranged in the external series gap of adjacent optical cable unit, or tearing rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer by many outer layer coaxial electrical unit, many optical cable units, ground wires, tear rope and constitute, outer layer coaxial electrical unit, optical cable unit are distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tearing rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is made up of many outer layer coaxial electrical unit, many optical cable units, ground wires, outer layer coaxial electrical unit, optical cable unit are distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer by many outer layer coaxial electrical unit, many optical cable units, tear rope and constitute, outer layer coaxial electrical unit, optical cable unit are distributed around the excircle of cable core internal layer；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tearing rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
Having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is made up of many outer layer coaxial electrical unit, many optical cable units, and outer layer coaxial electrical unit, optical cable unit are distributed around the excircle of cable core internal layer；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
Shaft power source line unit and optical cable unit are organically twisted into cable core, cable core outer cladding metal mask tape by the present invention, outside band, extrude one layer of plastic sheath；It is in 4G base station signal transmission system, from baseband processing unit BBU(BasedBandUnit) simultaneously for wireless radio remote unit RRU(RemoteRadioUnit) transmit optical signal and the choosing of ideal of supply of electric power cable is provided；May be also used in other application scenario of photoelectricity compound.
Cable core outer cladding layer of metal-plastic-metal screen layer in the present invention, be different from prior art use the plastic shielded layer of plastic-metal, there is more excellent shielding properties.
The G.657A2 optical fiber that in the present invention, optical cable unit adopts is the insensitive optical fiber of bending loss, not only good bending property and also compatible with G.652 ordinary optic fibre, the scope that optical cable uses can be widened；Adopt aramid fiber to do optical cable reinforcement, both can guarantee that fiber cable laying, the requirement of tensile strength when using, also meet flexibility when mixing cable lays simultaneously, when through the mechanical stress such as by bending, be beneficial to stablizing of optical fiber property；Optical cable unit sheath adopts LSZH to make sheath, and shrinkage factor, good mechanical property, anti-side pressure are good, it can be ensured that optical fiber property will not because being subject to when external environment affects to produce change.
In the present invention, the structure of inner wire/outer conductor in inside/outside layer coaxial electrical unit, and sectional area is equal, therefore single line can realize an independent power supply transmitting loop, instead of traditional concept only having two power lines can constitute an electric power loop, production for multiple-unit cable can reduce production cost, is also beneficial to resolution when mixing cable unit makes simultaneously, reduces cable laying operation expense.
The present invention has following main beneficial effect: purposes is wider, shielding properties better, mechanical performance is more excellent, diameter is less, lower in cost, be more easy to construction.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of the invention process example 1.
Fig. 2 is the cross-sectional structure schematic diagram of the optical cable unit amplification of Fig. 1.
Fig. 3 is the cross-sectional structure schematic diagram of the coaxial electrical unit amplification of Fig. 1.
Fig. 4 is the cross-sectional structure schematic diagram of the invention process example 2.
Detailed description of the invention
Embodiment 1
Asking for an interview Fig. 1 to Fig. 3, have the optical cable of coaxial electrical unit, it is that the oversheath 13 being coated on outside screen layer by cable core, the screen layer 12 enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement 9, the gasket for packing 10 of the four internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire 4, overlay on outward the insulating barrier 5 outside inner wire, it is positioned at the outer conductor 6 outside insulating barrier, it is positioned at the insulating tape 7 outside outer conductor, the inner sheath 8 that extrusion molding is coated on outside insulating tape is constituted, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer is by five outer layer coaxial electrical unit, three optical cable units 1, two hatching solid bars 2, ground wire 3, tear rope 11 composition, outer layer coaxial electrical unit, optical cable unit, hatching solid bar is distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit, or ground wire is arranged in the external series gap of adjacent hatching solid bar；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit, or tearing rope and be arranged in the external series gap of adjacent hatching solid bar；The cable jacket 105 that described optical cable unit is coated on outside protective layer by 12 tight tube fibers, aramid fiber reinforcement 103 and the protective layer 104 outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber 101 and the tight sleeve layer 102 outside being coated on optical fiber；Or the cable jacket 105 that described optical cable unit is coated on by 12 tight tube fibers, aramid fiber reinforcement 103 and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber 101 and the tight sleeve layer 102 outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint.
The optical cable with coaxial electrical unit described above, it is characterised in that described internal layer coaxial electrical unit can be other many.
The optical cable with coaxial electrical unit described above, it is characterised in that described outer layer coaxial electrical unit can be other many.
The optical cable with coaxial electrical unit described above, it is characterised in that described optical cable unit can be other many；Can also is that one.
The optical cable with coaxial electrical unit described above, it is characterised in that described hatching solid bar can be other many；Can also is that one.
The optical cable with coaxial electrical unit described above, it is characterised in that in described optical cable unit, tight tube fiber is by being other many.
The optical cable with coaxial electrical unit described above, it is characterised in that described ground wire, tear rope and can all not have, it is also possible to only have ground wire, it is also possible to only have and tear rope, when having ground wire, it is possible to for many ground wires；Can be many when tearing rope and tear rope.
The optical cable with coaxial electrical unit described above, it is characterised in that described optical fiber is the G.657A2 insensitive optical fiber of type bending loss or other suitable optical fiber.
The optical cable with coaxial electrical unit described above, it is characterised in that the metal in described shielding band is aluminum or steel or copper.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described ground wire is tinned conductor.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described reinforcement 9 is fiberglass reinforced plastics, English initial is FRP.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described inner wire and outer conductor is all preferably the five tin plating flexible conductors of class.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described insulating barrier is cross-linked polyolefin (i.e. XLPE) or other suitable insulant.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described insulating tape is the material that mica tape or waterstop or non-woven fabrics etc. are conventional.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described inner sheath is low smoke halogen-free flame-retardant polyolefin or other conventional cable jacket materials.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described oversheath is low smoke halogen-free flame-retardant polyolefin or other conventional cable jacket materials.
The optical cable with coaxial electrical unit described above, it is characterised in that the material of described cable jacket is low smoke halogen-free flame-retardant polyolefin or other conventional cable jacket materials.
The optical cable with coaxial electrical unit described above, it is characterised in that the optical cable unit of described cable core outer layer, outer layer coaxial electrical unit can be interspersed or the form such as optical cable unit integrated distribution.
The optical cable with coaxial electrical unit described above, it is characterised in that described inner wire is made up of two-layer, two-layer around to preferably contrary；Identical is also good selection.
The optical cable with coaxial electrical unit described above, it is characterised in that described outer conductor is made up of two-layer, two-layer around to preferably contrary；Identical is also good selection.
The optical cable with coaxial electrical unit described above, it is characterised in that described inner wire is alternatively one layer.
The optical cable with coaxial electrical unit described above, it is characterised in that described outer conductor is alternatively one layer.
The optical cable with coaxial electrical unit described above, it is characterised in that described inner wire also can for be made up of other multilamellar, adjacent layer around on the contrary.
The optical cable with coaxial electrical unit described above, it is characterised in that described outer conductor also can for be made up of other multilamellar, adjacent layer around on the contrary.
The optical cable with coaxial electrical unit described above, non-hygroscopic element also can be filled in all the other spaces of cable core, it is possible to makes cable core structure more rounding, stablize, to ensure cable core structure uniform force, has enough stability.
The optical cable with coaxial electrical unit described above, it is characterised in that its manufacture method comprises the steps of
(1) step of cable core is manufactured:
A) step of cable core internal layer is manufactured:
A.1) form the step of internal layer coaxial electrical unit: taking the soft inner wire that many five class conductor strand are formed, inner wire can be one or more layers, when inner wire is multilamellar, adjacent layer around on the contrary；In the outer extrusion molding cladding of inner wire, cross-linked polyolefin forms insulating barrier；Taking the soft outer conductor that many five class conductor strand are formed again, outer conductor can be one or more layers, when outer conductor is multilamellar, adjacent layer around on the contrary, making guarantee inner wire during outer conductor equal with the cross-sectional area of outer conductor；Take mica tape or waterstop or non-woven fabrics is coated on outside outer conductor and forms insulating tape；Take low-smoke halide-free fireproof composite polyolefine material extrusion molding to be coated on outside insulating tape and form inner sheath, complete the manufacture of single internal layer coaxial electrical unit；Above-mentioned steps repeatedly, forms many internal layer coaxial electrical unit；
A.2) step of cable core internal layer is formed: take fiberglass-reinforced plastic lever, A.1) many internal layer coaxial electrical unit, gasket for packings being formed, cable-former carries out stranding, make that fiberglass-reinforced plastic lever is centrally located, many internal layer coaxial electrical unit are distributed along fiberglass-reinforced plastic lever outer rim, gasket for packing is arranged in the external series gap of adjacent internal layer coaxial electrical unit, makes the outer most edge of all inner sheaths and all gasket for packings on same circumference, forms cable core internal layer；
B) step of cable core outer layer is manufactured:
B.1) form the step of outer layer coaxial electrical unit: taking the soft inner wire that many five class conductor strand are formed, inner wire can be one or more layers, when inner wire is multilamellar, adjacent layer around on the contrary；In the outer extrusion molding cladding of inner wire, cross-linked polyolefin forms insulating barrier；Taking the soft outer conductor that many five class conductor strand are formed again, outer conductor can be one or more layers, when outer conductor is multilamellar, adjacent layer around on the contrary, making guarantee inner wire during outer conductor equal with the cross-sectional area of outer conductor；Take mica tape or waterstop or non-woven fabrics is coated on outside outer conductor and forms insulating tape；Take low-smoke halide-free fireproof composite polyolefine material extrusion molding to be coated on outside insulating tape and form inner sheath, complete the manufacture of single outer layer coaxial electrical unit；Above-mentioned steps repeatedly, forms many outer layer coaxial electrical unit；
B.2) form the step of cable core outer layer: take many optical cable units, many B.1) the outer layer coaxial electrical unit that formed, many hatching solid bars, ground wire, tear rope, A.2) and in the cable core internal layer of formation；Cable-former makes: outer layer coaxial electrical unit, optical cable unit, hatching solid bar is distributed around the excircle of cable core internal layer, ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or ground wire is arranged in the external series gap of adjacent optical cable unit, or ground wire is arranged in the external series gap of adjacent outer layer coaxial electrical unit, or ground wire is arranged in the external series gap of adjacent hatching solid bar；Tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tear rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit and hatching solid bar, or tear rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit, or tearing rope and be arranged in the external series gap of adjacent hatching solid bar；
Wherein, the cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；
(2) step of screen layer it is coated with: take the cable core that (1st) step manufactures, and aluminum plastic aluminium profiles shielding band or the shielding of steel plastics die are with or copper plastics copper type shielding band, in the way of overlap is wrapped or indulge while there is overlap joint outside the mode of bag is coated on cable core, to form screen layer；
(3) step of oversheath is manufactured: low smoke halogen-free flame-retardant polyolefin extrusion molding is coated on outside (2nd) screen layer formed, and completes the manufacture with the optical cable of coaxial electrical unit.Certainly, technical field personnel in place are according to above-mentioned manufacture method, it is possible to speculate the manufacture method of other embodiment above-mentioned.
Embodiment 2
Ask for an interview Fig. 4, and referring to figs. 1 to Fig. 3, there is the optical cable of coaxial electrical unit, substantially with embodiment 1, be different in that described hatching solid bar can be other many；Can also is that one；Can also have little hatching solid bar as Fig. 4, cable core outer layer more rounding can be made.
Hatching solid bar medium and small for Fig. 4 is positioned at by ground wire, is positioned at the centre of two hatching solid bars 2.
Shaft power source line unit and optical cable unit are organically twisted into cable core, cable core outer cladding metal mask tape by the present invention, outside band, extrude one layer of plastic sheath；It is in 4G base station signal transmission system, from baseband processing unit BBU(BasedBandUnit) simultaneously for wireless radio remote unit RRU(RemoteRadioUnit) transmit optical signal and the choosing of ideal of supply of electric power cable is provided；May be also used in other application scenario of photoelectricity compound.
Cable core outer cladding layer of metal-plastic-metal screen layer in the present invention, be different from prior art use the plastic shielded layer of plastic-metal, there is more excellent shielding properties.
The G.657A2 optical fiber that in the present invention, optical cable unit adopts is the insensitive optical fiber of bending loss, not only good bending property and also compatible with G.652 ordinary optic fibre, the scope that optical cable uses can be widened；Adopt aramid fiber to do optical cable reinforcement, both can guarantee that fiber cable laying, the requirement of tensile strength when using, also meet flexibility when mixing cable lays simultaneously, when through the mechanical stress such as by bending, be beneficial to stablizing of optical fiber property；Optical cable unit sheath adopts LSZH to make sheath, and shrinkage factor, good mechanical property, anti-side pressure are good, it can be ensured that optical fiber property will not because being subject to when external environment affects to produce change.
In the present invention, the structure of inner wire/outer conductor in inside/outside layer coaxial electrical unit, and sectional area is equal, therefore single line can realize an independent power supply transmitting loop, instead of traditional concept only having two power lines can constitute an electric power loop, production for multiple-unit cable can reduce production cost, is also beneficial to resolution when mixing cable unit makes simultaneously, reduces cable laying operation expense.
The present invention has following main beneficial effect: purposes is wider, shielding properties better, mechanical performance is more excellent, diameter is less, lower in cost, be more easy to construction；The method of the present invention has the advantages that to manufacture grasp simple, easy.
The present invention is not limited to above-mentioned preferred forms, it will be appreciated that the design of the present invention can be implemented to use by other various forms, and they also fall within protection scope of the present invention.
Claims (4)
1. having the optical cable of coaxial electrical unit, it is that the oversheath being coated on outside screen layer by cable core, the screen layer enveloped by cable core, extrusion molding is constituted, and cable core is made up of cable core internal layer and the cable core outer layer outside being positioned at cable core internal layer；It is characterized in that described cable core internal layer is by centrally located reinforcement, the gasket for packing of the many internal layer coaxial electrical unit being distributed along reinforcement outer rim and the external series gap being arranged in adjacent internal layer coaxial electrical unit is constituted, every internal layer coaxial electrical unit is by inner wire, overlay on outward the insulating barrier outside inner wire, it is positioned at the outer conductor outside insulating barrier, it is positioned at the insulating tape outside outer conductor, extrusion molding is coated on the inner sheath outside insulating tape and constitutes, inner wire and outer conductor are all the flexible conductors of five class conductor strand, with on the cross section of the plane of reinforcement axis perpendicular, inner wire is equal with the cross-sectional area of outer conductor, the outer most edge of all inner sheaths and all gasket for packings is on same circumference；Described cable core outer layer by many outer layer coaxial electrical unit, many optical cable units, tear rope and constitute, outer layer coaxial electrical unit, optical cable unit are distributed around the excircle of cable core internal layer；Described outer layer coaxial electrical unit is the structure identical with internal layer coaxial electrical unit；Tearing rope and being arranged in the external series gap of adjacent outer layer coaxial electrical unit and optical cable unit, or tearing rope and be arranged in the external series gap of adjacent optical cable unit, or tearing rope and be arranged in the external series gap of adjacent outer layer coaxial electrical unit；The cable jacket that described optical cable unit is coated on outside protective layer by many tight tube fibers, aramid fiber reinforcement and the protective layer outside being coated on tight tube fiber and aramid fiber reinforcement, extrusion molding is constituted, and tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Or the cable jacket that described optical cable unit is coated on by many tight tube fibers, aramid fiber reinforcement and extrusion molding outside tight tube fiber and aramid fiber reinforcement is constituted, tight tube fiber is made up of optical fiber and the tight sleeve layer outside being coated on optical fiber；Described screen layer is made up of metal level plastic layer metal level, and screen layer is by the way of overlap is wrapped or indulge outside the mode of bag is coated on cable core with having overlap joint；Described outer conductor be made up of two-layer and two-layer around on the contrary.
2. the optical cable with coaxial electrical unit according to claim 1, it is characterised in that described optical fiber is the G.657A2 insensitive optical fiber of type bending loss.
3. the optical cable with coaxial electrical unit according to claim 2, it is characterized in that the metal in described shielding band is aluminum or steel or copper, the material of described ground wire is tinned conductor, the material of reinforcement is fiberglass reinforced plastics, the material of inner wire and outer conductor is all the five tin plating flexible conductors of class, the material of insulating barrier is cross-linked polyolefin, the material of insulating tape is mica tape or waterstop or non-woven fabrics, the material of inner sheath is low smoke halogen-free flame-retardant polyolefin, the material of oversheath is low smoke halogen-free flame-retardant polyolefin, the material of cable jacket is low smoke halogen-free flame-retardant polyolefin.
4. the optical cable with coaxial electrical unit according to claim 1, it is characterised in that described inner wire is made up of multilamellar, adjacent layer around on the contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120212.2A CN105719771A (en) | 2014-12-18 | 2014-12-18 | Photoelectric cable with coaxial electric units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120212.2A CN105719771A (en) | 2014-12-18 | 2014-12-18 | Photoelectric cable with coaxial electric units |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785982.XA Division CN104464951B (en) | 2014-12-18 | 2014-12-18 | Photoelectric mixed cable containing coaxial electrical unit and manufacture method thereof |
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| CN105719771A true CN105719771A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610120212.2A Pending CN105719771A (en) | 2014-12-18 | 2014-12-18 | Photoelectric cable with coaxial electric units |
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Cited By (1)
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| DE102018115210A1 (en) * | 2018-03-23 | 2019-09-26 | Dongguan Sinosyncs Industrial Co., Ltd. | Photoelectric combined HDMI cable and method for its manufacture |
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Application publication date: 20160629 |