CN217361215U - Light 7-core communication cable with alarm wire core - Google Patents
Light 7-core communication cable with alarm wire core Download PDFInfo
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- CN217361215U CN217361215U CN202221082942.5U CN202221082942U CN217361215U CN 217361215 U CN217361215 U CN 217361215U CN 202221082942 U CN202221082942 U CN 202221082942U CN 217361215 U CN217361215 U CN 217361215U
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Abstract
The utility model discloses a 7 core communication cable of light with warning sinle silk, including three power sinle silk, three control core and two counterpoint type wholly aromatic copolyamides tensile fiber core strip strand around a coaxial sinle silk jointly constitute the cable core, the cable core outside cladding has aramid fiber twisted wire winding layer in proper order, the PET resin area winds the package inoxidizing coating, early broken string warning conductive fiber winding total shield layer and silane grafting crosslinked high density polyethylene oversheath, early broken string warning sinle silk includes conductive fiber stranded conductor and PFA resin insulating layer, conductive fiber bundle is a plurality of thick footpath polyacrylonitrile-based carbon fiber strands and coats copper conductive coating and forms, conductive fiber stranded conductor is a plurality of thin footpath polyacrylonitrile-based carbon fiber strands and coats copper conductive coating and forms. The cable has the advantages that the metal shielding layer is removed, the early-stage wire breakage alarming wire core is added, the early-stage wire breakage alarming function is realized, and the production faults are reduced.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a 7 core communication cables of light with warning sinle silk.
Background
In an automated industrial production line, a multi-core cable is often used for a robot, a mobile drive system, and the like. Due to the rapid development of transmission technology, maintenance testing technology and the like, the communication cable gradually moves to the development of light weight and light weight, and the communication cable brings a great deal of benefits of convenient transportation, low manufacturing cost, economy, practicality, low efficiency and the like for industrial technology. However, the common communication cable adopts a metal shielding layer, so that the amount of copper wires is large, the weight is large, the manufacturing cost is high, and the requirement of light weight and light weight production is not facilitated. In addition, in the process that the metal shielding layer is repeatedly bent and twisted, the metal shielding layer is damaged due to fatigue, the wire breaking condition is easy to occur, the attenuation of a transmission signal is large, the shielding effect is unstable, and the cable does not have the early wire breaking alarm function, so that the fault is sudden, the emergency maintenance is difficult, and the normal production order is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough, the technical problem that solve provides a light 7 core communication cable with warning sinle silk, gets rid of the metallic shield layer, and it is required to realize light lightweight preparation, increases early broken string warning sinle silk, has early broken string alarming function, is favorable to in time maintaining to be changed, reduces production trouble and takes place.
The utility model discloses a make above-mentioned technical problem solve through following technical scheme.
A light 7-core communication cable with an alarm wire core comprises three power wire cores, three control wire cores and two para-type wholly aromatic copolyamide tensile fiber core strips, wherein the three power wire cores and the three control wire cores are jointly stranded around a coaxial wire core to form a cable core, the three power wire cores and the three control wire cores are separately arranged on the left side and the right side of the coaxial wire core through the two para-type wholly aromatic copolyamide tensile fiber core strips, the outer diameter ratio of the coaxial wire core to the control wire core is 1: 0.7-1: 1.85, the outer diameter ratio of the control wire core to the power wire core is 1: 0.6-1: 1.8, an aramid wire winding layer, a PET resin tape wrapping protective layer, an early disconnection alarm conductive fiber winding total shielding layer and a silane grafted cross-linked high-density polyethylene outer sheath are sequentially coated outside the cable core, the early disconnection alarm wire core comprises a conductive fiber stranded wire and a PFA resin insulating layer coated outside the conductive fiber stranded wire, the conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with large diameters and coating a copper conductive coating, the conductive fiber strand is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with small diameters and coating a copper conductive coating, the ratio of the wire diameter of the conductive fiber bundle to the wire diameter of the conductive fiber strand is 1.15:1 to 1.3:1, the wire diameter of the polyacrylonitrile-based carbon fibers with large wire diameters is 15 mu m to 30 mu m, and the wire diameter of the polyacrylonitrile-based carbon fibers with small wire diameters is 8 mu m to 12 mu m.
Preferably, the power supply wire core comprises a first inner conductor and a first silane-grafted cross-linked low-density polyethylene insulating layer.
Preferably, the control wire core comprises two insulating wire core pairs, the insulating wire core comprises a second inner conductor and a second silane grafted cross-linked low-density polyethylene insulating layer, and the outer portion of the wire core is sequentially coated with an iron powder polyethylene resin composite winding layer, a conductive fiber winding sub-shielding layer and a fluororesin winding layer.
Preferably, the iron powder polyethylene resin composite winding layer is of an iron powder polyethylene resin composite belt one-way spiral lapping and covering wrapping structure.
Preferably, the conductive fiber winding sub-shielding layer is in a conductive fiber bundle spiral winding structure, and the weaving density is 95% to 98%.
Preferably, the coaxial cable core comprises a third inner conductor, and a third silane grafted crosslinked low-density polyethylene insulating layer, a conductive fiber woven partial shielding layer and a fluororesin extrusion layer which are sequentially coated outside the third inner conductor.
Preferably, the conductive fiber braided shielding layer is a cylindrical supporting net body formed by lapping and braiding double-layer aramid fiber twisted wires in a reverse spiral mode, and a plurality of conductive fiber bundles are uniformly distributed on the supporting net body in the circumferential direction.
Preferably, the aramid twisted wire winding layer is of an aramid twisted wire unidirectional spiral winding structure, and the diameter of the aramid twisted wire is 0.15mm to 0.28 mm.
Preferably, the thickness of the early-stage wire breakage warning conductive fiber winding total shielding layer is 0.3mm to 0.5 mm.
Preferably, the diameter of the conductive fiber bundle is 0.12mm to 0.28 mm.
The utility model has the advantages that:
1. increasing a total shielding layer of early-stage wire breakage alarm conductive fiber winding, wherein the shielding layer is formed by mixing a plurality of conductive fiber bundles and two early-stage wire breakage alarm wire cores in a one-way spiral winding manner, the wire diameter ratio of the conductive fiber bundles to the conductive fiber stranded wires is 1.15: 1-1.3: 1, the wire diameter of the large-wire-diameter polyacrylonitrile-based carbon fibers forming the conductive fiber bundles is 15-30 mu m, the wire diameter of the small-wire-diameter polyacrylonitrile-based carbon fibers forming the conductive fiber stranded wires is 8-12 mu m, the tensile strength of the conductive fiber bundles is greater than that of the conductive fiber stranded wires of the early-stage wire breakage alarm wire cores, the conductive fiber stranded wires generate fatigue wire breakage earlier than the conductive fiber bundles in the process of repeated bending and twisting of the cable, the shielding characteristic of the total shielding layer is not influenced when the early-stage wire breakage alarm wire cores are broken, and the wire breakage alarm of the early-stage wire breakage alarm wire cores is carried out, can in time deal with, take maintenance change measure, avoid production trouble proruption, be of value to and maintain normal production order.
2. Through getting rid of the metallic shield layer, help light weight production, avoided the broken string emergence of metallic shield layer, early broken string warning conductive fiber winding total shielding layer, conductive fiber winding branch shielding layer's conductive fiber bundle are polyacrylonitrile base carbon fiber transposition and scribble copper conductive coating and form, can effectual replacement metallic material shielding layer, ensure that shielding performance is stable, effectively alleviate cable weight, reduce cost, it is required to realize light weight production. Meanwhile, the iron powder and polyethylene resin composite winding layer is additionally arranged to enhance the capability of shielding signal interference, and the iron powder filler and polyethylene resin composite material is adopted, so that the polyethylene resin base layer can help to reduce stress concentration of the conductive fiber winding sub-shielding layer, reduce torque force, enhance the capability of inhibiting external noise interference, reduce signal attenuation and have better signal transmission characteristics.
3. Through each sinle silk of rational arrangement in cable core inner structure, optimize the outer diameter ratio of power sinle silk, control sinle silk, coaxial sinle silk, add the tensile fibre core strip of counterpoint type wholly aromatic copolyamide simultaneously, help to ensure the cable circular cross section, the pliability and the resistant bending characteristic of cable have been improved, the tensile elastic modulus of the tensile fibre core strip of counterpoint type wholly aromatic copolyamide is big, lateral pressure when making the cable can be better to bear the bending, the cable has high flexibility, the inner conductor that significantly reduces takes place deformation broken silk, guarantee electrical property, durability is better.
Drawings
FIG. 1 is a schematic cross-sectional structural view of an embodiment of the present application;
fig. 2 is a schematic cross-sectional structure diagram of an embodiment of a control line core of the present application.
In the figure: 1-a power supply wire core, 11-a first inner conductor, 12-a first silane grafted crosslinked low-density polyethylene insulating layer, 2-a control wire core, 21-an insulating wire core, 211-a second inner conductor, 212-a second silane grafted crosslinked low-density polyethylene insulating layer, 22-an iron powder polyethylene resin composite winding layer, 23-a conductive fiber winding partial shield layer, 24-a fluororesin winding layer, a 3-para type wholly aromatic copolyamide drawn fiber core strip, 4-a coaxial wire core, 41-a third inner conductor, 42-a third silane grafted crosslinked low-density polyethylene insulating layer, 43-a conductive fiber woven partial shield layer, 44-a fluororesin extrusion layer, a 5-aramid twisted wire winding layer, a 6-PET resin tape winding protective layer, and 7-an early breakage alarm conductive fiber winding total shield layer, an outer sheath of 8-silane grafted cross-linked high density polyethylene.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the utility model provides a light 7-core communication cable with alarm core, including three power core 1, three control core 2 and two counterpoint type wholly aromatic copolyamide tensile fiber core strips 3 around a coaxial sinle silk 4 transposition constitution cable core jointly, three power core 1 with three control core 2 through two counterpoint type wholly aromatic copolyamide tensile fiber core strips 3 separate the setting in the left and right sides of coaxial sinle silk 4, coaxial sinle silk 4 with control core 2 external diameter ratio is 1:0.7 to 1:1.85, control sinle silk 2 with power sinle silk 1 external diameter ratio is 1:0.6 to 1: 1.8.
In one embodiment, the power supply core 1 comprises a first inner conductor 11 and a first silane-grafted crosslinked low density polyethylene insulation layer 12.
In one embodiment, as shown in fig. 2, the control wire core 2 comprises two pairs of insulated wire cores 21 twisted together to form a wire core body, the insulated wire cores 21 comprise a second inner conductor 211 and a second silane-grafted crosslinked low-density polyethylene insulating layer 212, and the wire core body is coated with an iron powder polyethylene resin composite winding layer 22, a conductive fiber winding partial shielding layer 23 and a fluorine resin winding layer 24 in sequence. The iron powder polyethylene resin composite winding layer 22 is of an iron powder polyethylene resin composite tape one-way spiral lapping and covering wrapping structure. The conductive fiber winding sub-shielding layer 23 is a conductive fiber bundle spiral winding structure and has a weaving density of 95% to 98%.
In one embodiment, the coaxial wire core 4 includes a third inner conductor 41, and a third silane-grafted cross-linked low-density polyethylene insulation layer 42, a conductive fiber braided sub-shield layer 43 and a fluororesin extrusion layer 44 sequentially coated outside the third inner conductor 41. The conductive fiber braided sub-shielding layer 43 is a cylindrical supporting net body formed by lapping and braiding double-layer aramid twisted wires in a reverse spiral manner, and a plurality of conductive fiber bundles are uniformly distributed on the supporting net body in the circumferential direction.
The outer portion of the cable core is sequentially coated with an aramid twisted wire winding layer 5, a PET resin tape winding protective layer 6, an early-stage wire breakage alarm conductive fiber winding total shielding layer 7 and a silane grafted cross-linked high-density polyethylene outer sheath 8. In one embodiment, the aramid twisted wire winding layer 5 is an aramid twisted wire unidirectional spiral winding structure, and the diameter of the aramid twisted wire is 0.15mm to 0.28 mm. The early-stage wire breakage alarm conductive fiber winding total shielding layer 7 is formed by spirally winding a plurality of conductive fiber bundles and two early-stage wire breakage alarm wire cores in a mixed single direction, each early-stage wire breakage alarm wire core comprises a conductive fiber stranded wire and a PFA resin insulating layer coated outside the conductive fiber stranded wire, each conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with large diameters and coating a copper conductive coating, each conductive fiber stranded wire is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with small diameters and coating a copper conductive coating, the ratio of the diameter of each conductive fiber bundle to the diameter of each conductive fiber stranded wire is 1.15: 1-1.3: 1, and specifically, the diameter of each conductive fiber bundle is 0.12 mm-0.28 mm. The line diameter of the thick-line-diameter polyacrylonitrile-based carbon fiber is 15-30 μm, and the line diameter of the thin-line-diameter polyacrylonitrile-based carbon fiber is 8-12 μm. Further, the thickness of the early-stage wire breakage alarm conductive fiber winding total shielding layer 7 is 0.3mm to 0.5 mm.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the claims of the present application belong to the protection scope of the present invention.
Claims (10)
1. 7 core communication cable of light with warning sinle silk, characterized by: the cable comprises three power cores (1), three control cores (2) and two para-type wholly aromatic copolyamide tensile fiber core strips (3) which are jointly stranded around a coaxial core (4) to form a cable core, the three power cores (1) and the three control cores (2) are separately arranged on the left side and the right side of the coaxial core (4) through the two para-type wholly aromatic copolyamide tensile fiber core strips (3), the outer diameter ratio of the coaxial core (4) to the control cores (2) is 1:0.7 to 1:1.85, the outer diameter ratio of the control cores (2) to the power cores (1) is 1:0.6 to 1:1.8, an aramid twisted wire winding layer (5), a PET resin tape wrapping protective layer (6), an early breaking alarm conductive fiber winding shielding layer (7) and a silane grafted and crosslinked high-density polyethylene outer sheath (8) are sequentially coated outside the cable core, the early-stage breakage alarm conductive fiber winding total shielding layer (7) is formed by mixing and spirally winding a plurality of conductive fiber bundles and two early-stage breakage alarm wire cores, each early-stage breakage alarm wire core comprises a conductive fiber stranded wire and a PFA resin insulating layer coated outside the conductive fiber stranded wire, each conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with large diameters and coating a copper conductive coating layer, each conductive fiber stranded wire is formed by stranding a plurality of polyacrylonitrile-based carbon fibers with small diameters and coating a copper conductive coating layer, the ratio of the wire diameter of each conductive fiber bundle to the wire diameter of each conductive fiber stranded wire is 1.15: 1-1.3: 1, the wire diameter of each polyacrylonitrile-based carbon fiber with large wire diameter is 15-30 mu m, and the wire diameter of each polyacrylonitrile-based carbon fiber with small wire diameter is 8-12 mu m.
2. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the power supply wire core (1) comprises a first inner conductor (11) and a first silane grafted and crosslinked low-density polyethylene insulating layer (12).
3. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the control sinle silk (2) include that two insulation sinle silks (21) pair twist constitute the line core body, insulation sinle silk (21) include second inner conductor (211) and second silane grafting cross-linking low density polyethylene insulating layer (212), the outside cladding has iron powder polyethylene resin complex winding layer (22), conductive fiber winding shielding layer (23) and fluororesin to wind covering (24) in proper order of the line core body.
4. The lightweight 7-core communications cable with an alarm core as claimed in claim 3, wherein: the iron powder polyethylene resin composite winding layer (22) is of a one-way spiral lapping and covering structure of an iron powder polyethylene resin composite belt.
5. The lightweight 7-core communications cable with an alarm core as claimed in claim 3, wherein: the conductive fiber winding sub-shielding layer (23) is of a conductive fiber bundle spiral winding structure, and the weaving density is 95% -98%.
6. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the coaxial cable core (4) comprises a third inner conductor (41) and a third silane grafted cross-linked low-density polyethylene insulating layer (42), a conductive fiber braided sub-shielding layer (43) and a fluororesin extrusion layer (44) which are sequentially coated outside the third inner conductor (41).
7. The light-weight 7-core communication cable with the alarm wire core according to claim 6, wherein: the conductive fiber braided sub-shielding layer (43) is formed by lapping and braiding double-layer aramid twisted wires in a reverse spiral mode to form a cylindrical supporting net body, and a plurality of conductive fiber bundles are uniformly distributed on the supporting net body in the circumferential direction.
8. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the aramid fiber twisted wire winding layer (5) is of an aramid fiber twisted wire unidirectional spiral winding structure, and the wire diameter of the aramid fiber twisted wire is 0.15 mm-0.28 mm.
9. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the thickness of the early-stage wire breakage alarm conductive fiber winding total shielding layer (7) is 0.3mm to 0.5 mm.
10. The lightweight 7-core communications cable with an alarm core as claimed in claim 1, wherein: the wire diameter of the conductive fiber bundle is 0.12mm to 0.28 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221082942.5U CN217361215U (en) | 2022-05-07 | 2022-05-07 | Light 7-core communication cable with alarm wire core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221082942.5U CN217361215U (en) | 2022-05-07 | 2022-05-07 | Light 7-core communication cable with alarm wire core |
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| Publication Number | Publication Date |
|---|---|
| CN217361215U true CN217361215U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221082942.5U Active CN217361215U (en) | 2022-05-07 | 2022-05-07 | Light 7-core communication cable with alarm wire core |
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| Country | Link |
|---|---|
| CN (1) | CN217361215U (en) |
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2022
- 2022-05-07 CN CN202221082942.5U patent/CN217361215U/en active Active
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