CN103065721A - Photoelectricity composite cable with flexible metallic sheath - Google Patents
Photoelectricity composite cable with flexible metallic sheath Download PDFInfo
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- CN103065721A CN103065721A CN2013100117400A CN201310011740A CN103065721A CN 103065721 A CN103065721 A CN 103065721A CN 2013100117400 A CN2013100117400 A CN 2013100117400A CN 201310011740 A CN201310011740 A CN 201310011740A CN 103065721 A CN103065721 A CN 103065721A
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Abstract
The invention relates to the technical field of composition of optical cables and electric cables, in particular to a photoelectricity composite cable with a flexible metallic sheath. The photoelectricity composite cable with the flexible metallic sheath comprises a central strengthening piece, a plurality of feeder lines and a plurality of optical transmission units distributed around the central strengthening piece, a wrapping tape layer coated on the feeder lines and the optical transmission units, a metallic shield armor layer outside the wrapping tape layer, and an outer sheath coated outside the metallic shield armor layer, wherein each feeder lines is composed of an inner conductor layer and an outer insulation layer. The photoelectricity composite cable with the flexible metallic sheath is characterized in that the each optical transmission unit is composed of a plurality of tight-buffered optical fibers, a strengthening core coated outside the tight-buffered optical fibers, and a sheath layer coated outside the strengthening core. The conductor layers are made of flexible conductors. The metallic shield armor layer is made of a corrugation aluminum tube. The photoelectricity composite cable with the flexible metallic sheath has the advantages of being flexible in structure, easy to construct, and high in tensile strength.
Description
Technical field
The present invention relates to the compound technical field of optical cable and cable, especially relate to a kind of optoelectrical cable of soft structure, it both can transmitting optical signal, can realize again power supply.
Background technology
In the prior art, the composite rope of transmission of electric energy and transmitting optical signal has a large amount of research and development, be called stranded feed optical cable such as the disclosed name of CN201020622900.7, it comprises the central reinforce member that is positioned at central authorities, around the stranded intertwist body that forms of central reinforce member, be coated on the outer protective sleeve of intertwist body; Described intertwist body comprises power transmission line, optical cable; Described intertwist body is stranded in the SZ mode around central reinforce member; Described power transmission line is positioned at outside the central reinforce member, and tangent between adjacent two power transmission lines; Described optical cable is positioned in the external series gap that forms between the adjacent power transmission line, and is tangent or slightly gapped with the protective sleeve internal diameter; And for example the disclosed name of CN200710025759.5 is called a kind of optoelectrical cable, it is by the reinforcement that is positioned at central authorities, around the sleeve pipe that contains optical fiber, power transmission line and the gasket for packing of the stranded distribution of reinforcement, be coated on the outer waterstop of intertwist body and be coated on that the outer restrictive coating of waterstop consists of; CN200410014668.8 discloses a kind of railway digital internal-shielded photoelectric comprehensive cable for another example, and it is that quad and the sleeve pipe that contains optical fiber is direct to closing.Although above-mentioned composite rope can both be realized transmission of electric energy and pass the purpose that light signal carries out simultaneously, but, their light cell mesh is all inserted optical fiber in the loose sleeve pipe and is formed, in order to protect the performance of optical fiber, usually be packed into greasy for preventing water in loose sleeve pipe, inserting of greasy for preventing water affected laying and using of comprehensive cable, on the one hand because the conveying of electric power, the heat that power transmission line partly sends constantly evaporates the greasy for preventing water in the loose sleeve pipe, thereby affects optical transmission performance; On the other hand, owing to loose sleeve pipe material soft or hard, be not easy to the construction of small-bend radius, that is to say that the product softness is not good enough.
Summary of the invention
For defects, the purpose of this invention is to provide more soft, the easier construction of a kind of structure, optoelectrical cable that tensile strength is higher.
For achieving the above object, the present invention realizes by the following technical solutions.
A kind of optoelectrical cable with ductile metal sheath of the present invention, is positioned at the metallic shield armour outside the belting layer and is coated on oversheath outside the metallic shield armour many feed lines and a plurality of optical transmission units, the belting layer that envelopes feed line and optical transmission unit that it includes central reinforce member, distribute around central reinforce member; Described feed line consists of by being positioned at inner conductor layer and being positioned at outside insulating barrier; It is characterized in that described optical transmission unit is made of many tight tube fibers, the restrictive coating that envelopes the strengthening core of tight tube fiber and envelope strengthening core; The material of described conductor layer is flexible conductor, and the material of described metallic shield armour is corrugated aluminum pipe.
A kind of optoelectrical cable with ductile metal sheath described above is characterized in that described flexible conductor is 5 class copper conductors or is the stranded conductor that forms of many one metal wires of 0.01mm-0.15mm by diameter range.
A kind of optoelectrical cable with ductile metal sheath described above is characterized in that described belting layer is that pitch one-way spiral with 20mm-30mm is coated on feed line and optical transmission unit is outer; And along central reinforce member axially, not having the distance between overlapping, the adjacent belting layer between the adjacent belting layer is 3mm-10mm; The material of described belting layer is waterstop or nonwoven fabrics.
A kind of optoelectrical cable with ductile metal sheath described above is characterized in that being placed with gasket for packing in the interval of adjacent feed line and optical transmission unit and belting layer three formation; In the interval of adjacent feed line and belting layer formation, be placed with gasket for packing; In the interval of adjacent optical transmission unit and belting layer formation, be placed with gasket for packing.
A kind of optoelectrical cable with ductile metal sheath described above, it is characterized in that described feed line and optical transmission unit be along the parallel distribution of axis of central reinforce member or in the mode of one-way spiral along the axis of central reinforce member.
A kind of optoelectrical cable with ductile metal sheath described above, it is characterized in that many tight tube fibers in the described optical transmission unit are freely to be distributed in the strengthening core in non-mutually stranded mode, or be distributed in the strengthening core in the stranded mode of spiral.
A kind of optoelectrical cable with ductile metal sheath described in first embodiment of the present invention is characterized in that described feed line is two, and optical transmission unit is two, and has two tight tube fibers in each optical transmission unit.
A kind of optoelectrical cable with ductile metal sheath described in second embodiment of the present invention is characterized in that described feed line is three, and optical transmission unit is one, and has two tight tube fibers in the optical transmission unit.
A kind of optoelectrical cable with ductile metal sheath described in the 3rd embodiment of the present invention is characterized in that described feed line is two, and optical transmission unit is two, and has two tight tube fibers in each optical transmission unit; The rope of tearing that between belting layer and metallic shield armour, has peelable metallic shield armour and outer jacket.
A kind of optoelectrical cable with ductile metal sheath described in the 4th embodiment of the present invention is characterized in that described feed line is two, and optical transmission unit is two, and has four tight tube fibers in each optical transmission unit.
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment, the material that it is characterized in that described oversheath are flame-proof polyethylene or low-smoke halogen-free polyolefin or polyvinyl chloride or medium density polyethylene or high density polyethylene (HDPE) or low density polyethylene (LDPE).
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment, the material that it is characterized in that described central reinforce member is nonmetallic materials, preferably fiberglass-reinforced plastic lever.
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that described strengthening core is the mixture of aramid fiber yarn or glass fiber yarn or aramid fiber yarn and glass fiber yarn.
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the optical fiber in the described tight tube fiber is G.652 type or G.655 type or G.657 type or A1a type or A1b type.
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment, the material that it is characterized in that described restrictive coating are flame-proof polyethylene or low-smoke halogen-free polyolefin or polyvinyl chloride.
A kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment, the material that it is characterized in that described insulating barrier is fire proofing.
As further improvement, among the present invention, central reinforce member can also not placed, and in this case, as long as assurance feed line and optical transmission unit are tangent or close, can make like this product more soft during production; In addition, among the present invention, central reinforce member is nonmetal fiberglass reinforced plastics, and intensity can satisfy product requirement but have advantage more soft than metal, do not have electromagnetic interference in product uses.
As further improvement, among the present invention, gasket for packing can arrange as required, and the setting of gasket for packing makes more rounding of product design, is more convenient for producing.
As further improvement, among the present invention, the metallic shield armour can further be simplified, and adopts aluminium foil or province to omit the metallic shield armour, and such structure can make product processing easier, and in addition, product is more soft.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, adopt corrugated aluminum pipe as the metallic shield armour, because bellows is convenient to bending, aluminum is lightweight and cost is low and have the characteristics such as intensity, shield effectiveness, conductance are good, thus product with respect in the prior art directly employing aluminum pipe or steel pipe as the metallic shield armour, have lighter, more flexible, more soft, cost is lower, shielding properties, the better advantage of conductance.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, employing has the optical transmission unit of tight tube fiber, nonmetal strengthening core, restrictive coating as the optical signal transmission part, compare with loose sleeve structure of the prior art, have the advantage that intensity is higher, bending property is more excellent, more soft; In addition, adopt G.657 that the type bend insensitive fiber is used as the main material of tight tube fiber, even make optical transmission unit in the situation of small-bend radius, also can guarantee optical transmission performance.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, along central reinforce member axially, not having the distance between overlapping, the adjacent belting layer between the adjacent belting layer is 3mm-10mm; And of the prior art, along central reinforce member axially, have overlappingly between the adjacent belting layer, namely alleged term overlaps or puts up for having in the industry, the existence that overlaps or put up has reduced the softness of product widely; The applicant adopts the structure of same embodiment 1, employing is axial along central reinforce member, overlap joint between the adjacent belting layer is from 10mm to the nothing overlap joint until the distance between the adjacent belting layer is 10mm, every 1mm is a test sample, by being that diameter is that the fast pulley of 500mm carries out bending equally, evidence, distance is increasing to the power value that overlap joint adopts for 10mm for 10mm, therefore, adopt the coating mode of the mode that does not have overlap joint can make product more soft.
Therefore, the present invention has following beneficial effect: more soft, the easier construction of product structure, tensile strength are higher.
Description of drawings
Fig. 1 is the cross-sectional structure schematic diagram of embodiment 1 among the present invention.
Fig. 2 is the cross-sectional structure schematic diagram of embodiment 2 among the present invention.
Fig. 3 is the cross-sectional structure schematic diagram of embodiment 3 among the present invention.
Fig. 4 is the cross-sectional structure schematic diagram of embodiment 4 among the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, a kind of optoelectrical cable with ductile metal sheath, two feed lines 1 that it includes central reinforce member 3, distribute around central reinforce member and two optical transmission units 2, envelope feed line and optical transmission unit belting layer 5, be positioned at the metallic shield armour 6 outside the belting layer and be coated on oversheath 7 outside the metallic shield armour; Described feed line 1 consists of by being positioned at inner conductor layer 11 and being positioned at outside insulating barrier 12; It is characterized in that described optical transmission unit 2 is made of two tight tube fibers 21, the restrictive coating 23 that envelopes the strengthening core 22 of tight tube fiber and envelope strengthening core; The material of described conductor layer is flexible conductor, and the material of described metallic shield armour is corrugated aluminum pipe; Described flexible conductor is 5 class copper conductors or is the stranded conductor that forms of many one metal wires of 0.01mm-0.15mm by diameter range; Described belting layer is that the pitch one-way spiral with 20mm-30mm is coated on feed line and optical transmission unit is outer; And along central reinforce member axially, not having the distance between overlapping, the adjacent belting layer between the adjacent belting layer is 3mm-10mm; The material of described belting layer is waterstop or nonwoven fabrics; In the interval of adjacent feed line and optical transmission unit and belting layer three formation, be placed with gasket for packing 4; In the interval of adjacent feed line and belting layer formation, be placed with gasket for packing 4; In the interval of adjacent optical transmission unit and belting layer formation, be placed with gasket for packing 4; Described feed line and optical transmission unit be along the parallel distribution of axis of central reinforce member or in the mode of one-way spiral along the axis of central reinforce member; Two tight tube fibers in the described optical transmission unit are freely to be distributed in the strengthening core in non-mutually stranded mode, or are distributed in the strengthening core in the stranded mode of spiral; The material of described oversheath is flame-proof polyethylene; The material of described central reinforce member is for being fiberglass-reinforced plastic lever; Described strengthening core is the aramid fiber yarn; Optical fiber in the described tight tube fiber is type G.657; The material of described restrictive coating is polyvinyl chloride; The material of described insulating barrier is fire proofing.
See also Fig. 2, a kind of optoelectrical cable with ductile metal sheath, substantially with embodiment 1, difference is that described feed line is three, optical transmission unit is one, and has two tight tube fibers in the optical transmission unit; In the interval of adjacent feed line and optical transmission unit and belting layer three formation, be placed with gasket for packing 4; In the interval of adjacent feed line and belting layer formation, be placed with gasket for packing 4.
See also Fig. 3, a kind of optoelectrical cable with ductile metal sheath, substantially with embodiment 1, difference is that described feed line is two, optical transmission unit is two, and has two tight tube fibers in each optical transmission unit; Between belting layer and metallic shield armour, have tearing of peelable metallic shield armour and outer jacket and restrict 8.
See also Fig. 4, a kind of optoelectrical cable with ductile metal sheath, substantially with embodiment 1, difference is that described feed line is two, optical transmission unit is two, and has four tight tube fibers in each optical transmission unit.
Certainly, as further improvement, in above-mentioned arbitrary embodiment, central reinforce member can also not placed, and in this case, as long as assurance feed line and optical transmission unit are tangent or close, can make like this product more soft during production; In addition, among the present invention, central reinforce member is nonmetal fiberglass reinforced plastics, and intensity can satisfy product requirement but have advantage more soft than metal, do not have electromagnetic interference in product uses.
Certainly, as further improvement, in above-mentioned arbitrary embodiment, gasket for packing can arrange as required, and the setting of gasket for packing makes more rounding of product design, is more convenient for producing.
Certainly, as further improvement, in above-mentioned arbitrary embodiment, the metallic shield armour can further be simplified, and adopts aluminium foil or province to omit the metallic shield armour, and such structure can make product processing easier, and in addition, product is more soft.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the material of described oversheath is for also can be low-smoke halogen-free polyolefin or polyvinyl chloride or medium density polyethylene or high density polyethylene (HDPE) or low density polyethylene (LDPE).
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the material of described central reinforce member also can be other nonmetallic materials.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that described strengthening core also can be the mixture of glass fiber yarn or aramid fiber yarn and glass fiber yarn.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the optical fiber in the described tight tube fiber also can be G.652 type or G.655 type or A1a type or A1b type.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the material of described restrictive coating also can be flame-proof polyethylene or low-smoke halogen-free polyolefin.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that described feed line, optical transmission unit also can be other many, such as 4,5,6 etc.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that the tight tube fiber in the described optical transmission unit also can be other many, such as 3,5,6,8 etc.
Certainly, a kind of optoelectrical cable with ductile metal sheath described in above-mentioned arbitrary embodiment is characterized in that all having the rope of tearing of tearing metallic shield armour and outer jacket between described belting layer and the metallic shield armour.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, adopt corrugated aluminum pipe as the metallic shield armour, because bellows is convenient to bending, aluminum is lightweight and cost is low and have the characteristics such as intensity, shield effectiveness, conductance are good, thus product with respect in the prior art directly employing aluminum pipe or steel pipe as the metallic shield armour, have lighter, more flexible, more soft, cost is lower, shielding properties, the better advantage of conductance.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, employing has the optical transmission unit of tight tube fiber, nonmetal strengthening core, restrictive coating as the optical signal transmission part, compare with loose sleeve structure of the prior art, have the advantage that intensity is higher, bending property is more excellent, more soft; In addition, adopt G.657 that the type bend insensitive fiber is used as the main material of tight tube fiber, even make optical transmission unit in the situation of small-bend radius, also can guarantee optical transmission performance.
A kind of optoelectrical cable with ductile metal sheath described in the present invention, along central reinforce member axially, not having the distance between overlapping, the adjacent belting layer between the adjacent belting layer is 3mm-10mm; And of the prior art, along central reinforce member axially, have overlappingly between the adjacent belting layer, namely alleged term overlaps or puts up for having in the industry, the existence that overlaps or put up has reduced the softness of product widely; The applicant adopts the structure of same embodiment 1, employing is axial along central reinforce member, overlap joint between the adjacent belting layer is from 10mm to the nothing overlap joint until the distance between the adjacent belting layer is 10mm, every 1mm is a test sample, by being that diameter is that the fast pulley of 500mm carries out bending equally, evidence, distance is increasing to the power value that overlap joint adopts for 10mm for 10mm, therefore, adopt the coating mode of the mode that does not have overlap joint can make product more soft.
Therefore, the present invention has following beneficial effect: more soft, the easier construction of product structure, tensile strength are higher.
The present invention is not limited to above-mentioned preferred forms, should be appreciated that design of the present invention can be by other various forms enforcement utilizations, and they drop in protection scope of the present invention equally.
Claims (10)
1. optoelectrical cable with ductile metal sheath, is positioned at the metallic shield armour outside the belting layer and is coated on oversheath outside the metallic shield armour many feed lines and a plurality of optical transmission units, the belting layer that envelopes feed line and optical transmission unit that it includes central reinforce member, distribute around central reinforce member; Described feed line consists of by being positioned at inner conductor layer and being positioned at outside insulating barrier; It is characterized in that described optical transmission unit is made of many tight tube fibers, the restrictive coating that envelopes the strengthening core of tight tube fiber and envelope strengthening core; The material of described conductor layer is flexible conductor, and the material of described metallic shield armour is corrugated aluminum pipe; Described belting layer is that the pitch one-way spiral with 20mm-30mm is coated on feed line and optical transmission unit is outer; And along central reinforce member axially, not having the distance between overlapping, the adjacent belting layer between the adjacent belting layer is 3mm-10mm; The material of described belting layer is waterstop or nonwoven fabrics.
2. a kind of optoelectrical cable with ductile metal sheath according to claim 1 is characterized in that described flexible conductor is 5 class copper conductors or is the stranded conductor that forms of many one metal wires of 0.01mm-0.15mm by diameter range.
3. a kind of optoelectrical cable with ductile metal sheath according to claim 1 is characterized in that being placed with gasket for packing in the interval of adjacent feed line and optical transmission unit and belting layer three formation; In the interval of adjacent feed line and belting layer formation, be placed with gasket for packing; In the interval of adjacent optical transmission unit and belting layer formation, be placed with gasket for packing.
4. a kind of optoelectrical cable with ductile metal sheath according to claim 1, it is characterized in that described feed line and optical transmission unit be along the parallel distribution of axis of central reinforce member or in the mode of one-way spiral along the axis of central reinforce member.
5. a kind of optoelectrical cable with ductile metal sheath according to claim 1, it is characterized in that many tight tube fibers in the described optical transmission unit are freely to be distributed in the strengthening core in non-mutually stranded mode, or be distributed in the strengthening core in the stranded mode of spiral.
6. have the optoelectrical cable of ductile metal sheath to claimed in claim 5 any one according to claim 1, it is characterized in that having between described belting layer and the metallic shield armour rope of tearing of peelable metallic shield armour and outer jacket.
7. have the optoelectrical cable of ductile metal sheath to claimed in claim 5 any one according to claim 1, the material that it is characterized in that described oversheath is flame-proof polyethylene or low-smoke halogen-free polyolefin or polyvinyl chloride or medium density polyethylene or high density polyethylene (HDPE) or low density polyethylene (LDPE); The material of described central reinforce member is nonmetallic materials.
8. have the optoelectrical cable of ductile metal sheath to claimed in claim 5 any one according to claim 1, it is characterized in that described strengthening core is the mixture of aramid fiber yarn or glass fiber yarn or aramid fiber yarn and glass fiber yarn.
9. have the optoelectrical cable of ductile metal sheath to claimed in claim 5 any one according to claim 1, it is characterized in that the optical fiber in the described tight tube fiber is G.652 type or G.655 type or G.657 type or A1a type or A1b type.
10. have the optoelectrical cable of ductile metal sheath to claimed in claim 5 any one according to claim 1, the material that it is characterized in that described restrictive coating is flame-proof polyethylene or low-smoke halogen-free polyolefin or polyvinyl chloride.
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| CN201310011740.0A CN103065721B (en) | 2013-01-14 | 2013-01-14 | Photoelectricity composite cable with flexible metallic sheath |
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