CN220324187U - Bending-resistant breakage-proof symmetrical communication cable - Google Patents
Bending-resistant breakage-proof symmetrical communication cable Download PDFInfo
- Publication number
- CN220324187U CN220324187U CN202321742110.6U CN202321742110U CN220324187U CN 220324187 U CN220324187 U CN 220324187U CN 202321742110 U CN202321742110 U CN 202321742110U CN 220324187 U CN220324187 U CN 220324187U
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- shielding layer
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- layer
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- 238000005452 bending Methods 0.000 title claims abstract description 24
- 238000004891 communication Methods 0.000 title claims abstract description 18
- 238000004804 winding Methods 0.000 claims abstract description 33
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims 1
- 239000011162 core material Substances 0.000 abstract description 51
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000004760 aramid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 238000010618 wire wrap Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Insulated Conductors (AREA)
Abstract
The utility model discloses an anti-bending breakage-proof line-type symmetrical communication cable, which comprises eight twisted wire cores, wherein the eight twisted wire cores surround the outer circumference of an AFRP reinforced filling core material at intervals and are twisted together with an aramid fiber filling core material to form a cable core, the outer part of the cable core is sequentially coated with an ETFE resin inner wrapping antifriction layer, an aluminum magnesium wire winding inner shielding layer, a tinned copper wire winding outer shielding layer, a tinned sealing shielding layer, an ETFE resin outer wrapping antifriction layer and a polyvinyl chloride outer sheath, a gap is formed between the ETFE resin inner wrapping antifriction layer and the aluminum magnesium wire winding inner shielding layer, the gap distance is 0.01mm to 0.03mm, the twisted wire cores comprise two insulating wire core pairs, and the insulating wire cores comprise an inner conductor and an XLPE insulating layer. The cable has better bending resistance, effectively slows down the extrusion force born by the twisted wire core, reduces the breakage of the conductor of the twisted wire core, and effectively reduces the attenuation of long-distance transmission of high-frequency signals.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a bending-resistant breakage-proof symmetrical communication cable.
Background
In the intelligent industrial production line, the symmetrical communication cable is applied to signal transmission and control systems in monitoring equipment, electronic computers and information processing equipment. After the common symmetrical communication cable is subjected to repeated bending under normal working conditions, the twisted wire core conductor is easy to break due to the common bending resistance, and the shielding layer is also broken, so that the electrical characteristics of the cable in normal use are seriously affected, and the durability is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the utility model is to provide the bending-resistant breakage-proof symmetrical communication cable, which has better bending resistance, each pair of twisted wire cores in the cable core are uniformly stressed, the extrusion force born by the twisted wire cores is effectively reduced, the breakage of conductors of the twisted wire cores is reduced, the breakage of a shielding layer is not easy, the long-distance transmission attenuation of high-frequency signals is effectively reduced, and the stable electrical characteristics of the cable are ensured.
The utility model solves the technical problems through the following technical proposal.
The utility model provides an anti-bending breakage-proof line type symmetrical communication cable, includes eight pair twisted wire core around the outside circumference interval equipartition of AFRP reinforcement packing core and twines together with aramid fiber packing core and constitute the cable core, the outside cladding of cable core has in proper order in the ETFE resin around package antifriction layer, aluminum magnesium wire winding inner shielding layer, tinned copper wire winding outer shielding layer, tinned fit shielding layer, ETFE resin outer package antifriction layer and polyvinyl chloride oversheath, be formed with clearance and clearance distance between the interior antifriction layer of ETFE resin with the interior shielding layer of aluminum magnesium wire winding is 0.01mm to 0.03mm, pair twisted wire core includes that two insulating wire core pair twist constitutes, insulating wire core includes inner conductor and XLPE insulating layer.
Preferably, the inner conductor is formed by concentrically twisting a plurality of tin-plated copper monofilaments having a diameter of 0.02mm to 0.15 mm.
Preferably, the inner wrapping antifriction layer of the ETFE resin and the outer wrapping antifriction layer of the ETFE resin are of an ETFE resin belt unidirectional spiral lapping and wrapping structure.
Preferably, the ETFE resin tape has a thickness of 0.03mm to 0.2mm.
Preferably, the aluminum magnesium wire winding inner shielding layer is of a side-by-side spiral winding structure of a plurality of aluminum magnesium wires with the wire diameters of 0.08mm to 0.1 mm.
Preferably, the tinned copper wire winding outer shielding layer is of a parallel spiral winding structure of a plurality of tinned copper wires with the wire diameters of 0.05mm to 0.08 mm.
Preferably, the tinned copper wire is wound around the outer surface of the outer shielding layer and electroplated to form a tinned sealing shielding layer.
Preferably, the AFRP reinforced filling core material is formed by twisting a plurality of aramid fiber twisted yarns, wherein the aramid fiber twisted yarns are formed by twisting a plurality of aramid fibers and are integrally bonded with thermoplastic polyurethane resin through hot melting.
Preferably, the aluminum magnesium wire winding inner shielding layer is coated with insulating lubricating silicone grease.
Preferably, the twisting directions of the eight twisted wire cores are the same, and the twisting pitches of the eight twisted wire cores are 10mm to 20mm and are different from each other.
The beneficial effects of the utility model are as follows:
1. the central tensile core material of the cable core adopts an AFRP reinforced filling core material, the mechanical strength and tensile elastic modulus of the AFRP reinforced filling core material are larger than those of the aramid fiber filling core material, the tensile force of the aramid fiber filling core material can be effectively born when the cable is subjected to repeated bending, the extrusion force of the aramid fiber filling core material is slowed down, the structural deformation of the twisted wire core is restrained, the broken wire condition of the twisted wire core conductor is reduced, the stable electrical characteristics are ensured, and the cable is durable to apply.
And 2. A gap is formed between the inner wrapping antifriction layer of the ETFE resin and the inner wrapping antifriction layer of the aluminum-magnesium wire winding, and the optimized gap distance is 0.01-0.03 mm, so that adhesion between the inner wrapping antifriction layer of the aluminum-magnesium wire winding and the inner wrapping antifriction layer of the ETFE resin is avoided, relative movement between the inner wrapping antifriction layer of the aluminum-magnesium wire winding and the inner wrapping antifriction layer of the ETFE resin is maintained in the repeated bending torsion process, the bending resistance of the cable is improved, and the durability is better.
3. The shielding conductor is formed by the aluminum magnesium wire winding inner shielding layer, the tinned copper wire winding outer shielding layer and the tinned sealing shielding layer, the tinned copper wire is high in rigidity, the aluminum magnesium wire is weaker than the tinned copper wire, the tinned copper wire and aluminum magnesium wire double-layer spiral winding shielding structure is adopted, the flexibility of the shielding layer is improved, the tinned copper wires which are spirally wound side by side are connected into a whole in a sealing mode through the tinned sealing shielding layer, bending resistance is greatly improved, loosening of the tinned copper wire and breakage of the shielding layer are effectively avoided, the tinned sealing shielding layer can effectively fill the hole formed by the tinned copper wire winding outer shielding layer, better shielding density is guaranteed, long-distance transmission attenuation of high-frequency signals is effectively reduced, anti-interference capability is improved, and stable electrical characteristics of the cable are guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.
In the figure: the cable comprises a 1-pair twisted cable core, a 2-AFRP reinforced filling core material, a 3-aramid fiber filling core material, a 4-ETFE resin inner wrapping antifriction layer, a 5-aluminum magnesium wire wrapping inner shielding layer, a 6-tinned copper wire wrapping outer shielding layer, a 7-tinned sealing shielding layer, an 8-ETFE resin outer wrapping antifriction layer, a 9-polyvinyl chloride outer sheath, a 10-gap, an 11-insulating cable core, a 12-inner conductor and a 13-XLPE insulating layer.
Description of the embodiments
In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments and the accompanying drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.
Referring to fig. 1, the bending-resistant breakage-proof symmetrical communication cable of the embodiment of the utility model comprises eight twisted wire cores 1 which are circumferentially and alternately distributed around the outside of an AFRP reinforced filling core material 2 and are twisted together with an aramid fiber filling core material 3 to form a cable core, further, the eight twisted wire cores 1 have the same twisting direction, and the twisting pitches of the eight twisted wire cores 1 are 10mm to 20mm and are different from each other. In one embodiment, the AFRP reinforced filling core material 2 is formed by twisting a plurality of aramid fiber twisted yarns, and the aramid fiber twisted yarns are formed by twisting a plurality of aramid fibers and are integrally bonded with thermoplastic polyurethane resin through hot melting. The twisted wire core 1 comprises two insulated wire cores 11 twisted in pairs, wherein each insulated wire core 11 comprises an inner conductor 12 and an XLPE insulating layer 13, and specifically, the inner conductor 12 is formed by concentrically twisting a plurality of tin-plated copper monofilaments with diameters of 0.02mm to 0.15 mm.
The cable core is externally coated with an ETFE resin inner wrapping antifriction layer 4, an aluminum magnesium wire winding inner shielding layer 5, a tinned copper wire winding outer shielding layer 6, a tinned sealing shielding layer 7, an ETFE resin outer wrapping antifriction layer 8 and a polyvinyl chloride outer sheath 9 in sequence, a gap 10 is formed between the ETFE resin inner wrapping antifriction layer 4 and the aluminum magnesium wire winding inner shielding layer 5, the gap distance is 0.01-0.03 mm, and further, the aluminum magnesium wire winding inner shielding layer 5 is coated with insulating lubricating silicone grease. And the tinned copper wires are wound on the outer surface of the outer shielding layer 6 to form a tinned sealing shielding layer 7 by electroplating. In one embodiment, the ETFE resin inner wrapping antifriction layer 4 and the ETFE resin outer wrapping antifriction layer 8 are both ETFE resin tape unidirectional spiral lapping and wrapping structures, and further, the ETFE resin tape thickness is 0.03mm to 0.2mm. In one embodiment, the aluminum magnesium wire winding inner shielding layer 5 is in a side-by-side spiral winding structure of aluminum magnesium wires with the wire diameters of 0.08mm to 0.1 mm. In one embodiment, the tinned copper wire wound outer shielding layer 6 is a side-by-side spiral winding structure of a plurality of tinned copper wires with wire diameters of 0.05mm to 0.08 mm.
It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.
Claims (9)
1. The utility model provides a bending resistance prevents broken string formula symmetrical communication cable which characterized by: including eight pair twist core (1) around AFRP reinforce packing core (2) outside circumference interval equipartition and with aramid fiber packing core (3) transposition jointly constitute the cable core, the outside cladding of cable core has in proper order in ETFE resin around package antifriction layer (4), aluminum magnesium wire winding inner shielding layer (5), tinned copper wire winding outer shielding layer (6), tinned seal shielding layer (7), ETFE resin is around package antifriction layer (8) and polyvinyl chloride oversheath (9), be formed with clearance (10) and clearance distance be 0.01mm to 0.03mm in the ETFE resin around package antifriction layer (4) with in the aluminum magnesium wire winding inner shielding layer (5), pair twist core (1) include two insulating core (11) pair twist constitution, insulating core (11) include inner conductor (12) and XLPE insulating layer (13).
2. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the inner conductor (12) is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.02mm to 0.15 mm.
3. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the ETFE resin inner wrapping antifriction layer (4) and the ETFE resin outer wrapping antifriction layer (8) are of an ETFE resin belt unidirectional spiral lapping and wrapping structure.
4. A bending-resistant break-resistant symmetrical communications cable according to claim 3, characterized in that: the ETFE resin tape thickness is 0.03mm to 0.2mm.
5. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the aluminum magnesium wire winding inner shielding layer (5) is of a parallel spiral winding structure of aluminum magnesium wires with the wire diameters of 0.08mm to 0.1 mm.
6. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the tinned copper wire winding outer shielding layer (6) is of a parallel spiral winding structure of a plurality of tinned copper wires with the wire diameters of 0.05mm to 0.08 mm.
7. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: and the tinned copper wires are wound on the outer surface of the outer shielding layer (6) and are electroplated to form a tinned sealing shielding layer (7).
8. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the aluminum magnesium wire winding inner shielding layer (5) is coated with insulating lubricating silicone grease.
9. The bending-resistant break-resistant symmetrical communication cable of claim 1, wherein: the twisting directions of the eight twisted wire cores (1) are the same, and the twisting pitches of the eight twisted wire cores (1) are 10mm to 20mm and are different from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742110.6U CN220324187U (en) | 2023-07-05 | 2023-07-05 | Bending-resistant breakage-proof symmetrical communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742110.6U CN220324187U (en) | 2023-07-05 | 2023-07-05 | Bending-resistant breakage-proof symmetrical communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324187U true CN220324187U (en) | 2024-01-09 |
Family
ID=89421837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321742110.6U Active CN220324187U (en) | 2023-07-05 | 2023-07-05 | Bending-resistant breakage-proof symmetrical communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324187U (en) |
-
2023
- 2023-07-05 CN CN202321742110.6U patent/CN220324187U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |