CN219832281U - Structure-balanced type multimedia comprehensive shielding cable - Google Patents
Structure-balanced type multimedia comprehensive shielding cable Download PDFInfo
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- CN219832281U CN219832281U CN202320748233.4U CN202320748233U CN219832281U CN 219832281 U CN219832281 U CN 219832281U CN 202320748233 U CN202320748233 U CN 202320748233U CN 219832281 U CN219832281 U CN 219832281U
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- 238000004804 winding Methods 0.000 claims abstract description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000805 composite resin Substances 0.000 claims abstract description 22
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 22
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 239000004677 Nylon Substances 0.000 claims abstract description 5
- 229920001778 nylon Polymers 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims abstract description 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 46
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 238000010618 wire wrap Methods 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 229920006240 drawn fiber Polymers 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 9
- 238000005187 foaming Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 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
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Communication Cables (AREA)
Abstract
The utility model discloses a balanced-structure multimedia comprehensive shielding cable which comprises a power supply wire core, a radio frequency wire core, a differential signal wire core group and a control wire core, wherein the power supply wire core, the radio frequency wire core, the differential signal wire core group and the control wire core are circumferentially arranged in a separated mode through an X-shaped PFA resin isolation core frame and are twisted together to form a cable core, an oval cross-linked fluororubber inner sheath layer is formed outside the cable core in an extrusion mode, an iron powder polyethylene resin composite total winding layer, a copper wire winding total shielding layer, a nylon anti-corrosion layer and a polyurethane outer sheath layer are sequentially coated outside the cable core, the differential signal wire core group is formed by two differential signal wire cores and is arranged opposite to the power supply wire core, the outer diameter of the power supply wire core is 2.2mm to 2.5mm, the outer diameter ratio of the radio frequency wire core to the control wire core is 0.95:1 to 1.05:1, and the outer diameter ratio of the differential signal wire core to the power supply wire core is 0.7:1 to 0.85:1. The cable core structure of the cable is more balanced and stable, local stress concentration of each cable core is effectively slowed down, broken wire and fracture are reduced, and the shielding performance is stable.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a structure-balanced type multimedia comprehensive shielding cable.
Background
Due to rapid development of transmission technology, maintenance testing technology, etc., communication cables are gradually reduced in diameter and weight, and at the same time, they are required to have good impedance characteristics, electrical insulation properties, and chemical stability. On automatic industrial production line, the supervisory equipment, wiring connection, wired control etc. of multiple class mechanical equipment are more suitable for adopting comprehensive cable, and present comprehensive cable need bear extrusion and buckle repeatedly under normal operating condition, and the cable core structure of general comprehensive cable is balanced poor, easily causes local stress concentration, easily causes the broken wire fracture phenomenon of each sinle silk, and shielding effect is unstable, and signal transmission attenuation is big, seriously influences electrical characteristics, and job stabilization nature is poor, and life is short.
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 multimedia comprehensive shielding cable with balanced structure, the cable core structure is more balanced and stable, each wire core is stressed uniformly, the local stress concentration of each wire core is effectively slowed down, the occurrence of broken wires and breakage is reduced, the signal attenuation is reduced, the shielding performance is stable, the electrical characteristics are better, and the service life is prolonged.
The utility model solves the technical problems through the following technical proposal.
The balanced-structure multimedia comprehensive shielding cable comprises a power supply wire core, a radio frequency wire core, a differential signal wire core group and a control wire core, wherein the power supply wire core, the radio frequency wire core, the differential signal wire core group and the control wire core are circumferentially arranged in a separated mode through an X-shaped PFA resin isolation core frame and are twisted together to form a cable core, an oval cross-linked fluororubber inner sheath layer is formed by extruding and wrapping the outside of the cable core, an iron powder polyethylene resin composite total winding layer, a copper wire winding total shielding layer, a nylon anti-corrosion layer and a polyurethane outer sheath layer are sequentially coated on the outside of the oval cross-linked fluororubber inner sheath layer, the differential signal wire core group consists of two differential signal wire cores and is oppositely arranged with the power supply wire core, the control wire core comprises two insulating wire core pairs, the insulating wire core comprises an inner conductor and a silane grafted cross-linked low-density polyethylene insulating layer, the outside of the cable core body is sequentially coated with an iron powder polyethylene resin composite winding layer, a copper wire winding shielding layer and a silane grafted cross-linked high-density polyethylene sheath layer, the outer diameter of the insulating wire core is 1mm to 1.35mm, the outer diameter of the power supply wire core is 2.2mm to 2.5mm, the outer diameter of the radio frequency wire core and the outer diameter of the control wire core is 0.95:1:1.1.1:1.7:1.
Preferably, the insulation core lay length is 20 times to 60 times of the outer diameter of the insulation core.
Preferably, the length-axis ratio of the oval cross-linked fluororubber inner sheath layer is 1.4:1 to 1.8:1.
Preferably, the power supply wire core comprises a power supply conductor and an XLPE insulating layer, wherein the power supply conductor is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.02mm to 0.04mm into a circular conductor structure.
Preferably, the radio frequency wire core comprises a radio frequency conductor, a foamed polypropylene inner insulating layer, an ETFE wrapping outer insulating layer, a shielding reticular conductor layer and a polyester fiber plain weave wrapping layer which are sequentially wrapped outside the radio frequency conductor, and the radio frequency conductor is formed by twisting a plurality of tinned copper monofilaments and para-type wholly aromatic copolyamide drawn fibers together.
Preferably, the differential signal wire core comprises a central conductor, and an FEP insulating layer, a copper wire wrapping shielding layer and a PET resin extrusion coating which are sequentially coated outside the central conductor, wherein the central conductor is a copper monofilament conductor.
Preferably, the copper wire wrapping shielding layer is formed by mixing tin-plated copper wires with two different wire diameters and a wire diameter ratio of 0.9-1 in a unidirectional spiral winding way, and the shielding density is 90-95%.
Preferably, the copper wire winding total shielding layer and the copper wire winding sub-shielding layer are formed by spirally winding double-layer tinned copper wires in opposite directions.
Preferably, the inner conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.01mm to 0.04 mm.
Preferably, the iron powder polyethylene resin composite total winding layer and the iron powder polyethylene resin composite sub-winding layer are both of an iron powder polyethylene resin composite belt multi-layer lapping and wrapping structure.
The utility model has the beneficial effects that:
1. the cable has the advantages that the outer diameter sizes and the proportion of the power supply wire core, the radio frequency wire core, the differential signal wire core group and the control wire core are optimized, tensile stress is dispersed on each wire core in the bending process of the cable, local stress concentration is reduced, the X-shaped PFA resin isolation core frame with a special structure is configured, the electric insulation interval distance between different wire cores is kept, balanced and stable cable core structures are promoted, moreover, the cable core is extruded outside to form an oval crosslinked fluororubber inner sheath layer, the stress concentration inside the cable core is relieved, the occurrence of broken wire of each wire core is reduced, the stable electrical characteristics of the cable are ensured, the lateral pressure and the extrusion force of each wire core in bending are reduced, the extrusion resistance and bending resistance performance are improved, the signal attenuation is reduced, the shielding performance is stable, the durability is better, and the service life is prolonged.
2. The cable core is outside to form the shielding conductor jointly through the total winding layer of iron powder polyethylene resin and the total shielding layer of copper wire winding, effectively reduces signal attenuation, reinforces shielding performance, and the total winding layer of iron powder polyethylene resin can slow down the stress concentration of the total shielding layer of copper wire winding, reduces torque force, helps preventing broken wire and broken wire to take place to can effectually fill the total shielding layer space of copper wire winding, strengthen shielding performance, guarantee shielding characteristic's stability.
3. The outside of the wire core body of the control wire core forms a double-layer shielding conductor through the iron powder polyethylene resin composite sub-winding layer and the copper wire winding sub-shielding layer, and the iron powder polyethylene resin composite sub-winding layer can effectively fill a gap formed by the copper wire winding sub-shielding layer, so that the anti-interference capability is stronger, the shielding performance is enhanced, the signal attenuation is reduced, and the signal transmission performance is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.
Reference numerals illustrate:
the cable comprises a 1-power supply wire core, a 2-radio frequency wire core, a 3-differential signal wire core group, a 4-control wire core, a 5-X-shaped PFA resin isolation core frame, a 6-oval cross-linked fluororubber inner sheath layer, a 7-iron powder polyethylene resin composite total winding layer, an 8-copper wire winding total shielding layer, a 9-nylon corrosion-resistant layer, a 10-polyurethane outer sheath layer, a 11-differential signal wire core, a 12-insulation wire core, a 13-inner conductor, a 14-silane grafted cross-linked low density polyethylene insulating layer, a 15-iron powder polyethylene resin composite sub-winding layer, a 16-copper wire winding sub-shielding layer, a 17-silane grafted cross-linked high density polyethylene sheath layer, a 18-power supply conductor, a 19-XLPE insulating layer, a 20-radio frequency conductor, a 21-foamed polypropylene inner insulating layer, a 22-ETFE winding outer insulating layer, a 23-shielding net conductor layer, a 24-polyester fiber plain-woven cloth winding layer, a 25-center conductor, a 26-FEP insulating layer, a 27-copper wire winding shielding layer and a 28-PET resin extrusion layer.
Description of the embodiments
The terminology used in the description of the embodiments of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model, as will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the balanced-structure multimedia comprehensive shielding cable of the embodiment of the utility model comprises a power wire core 1, a radio frequency wire core 2, a differential signal wire core group 3 and a control wire core 4 which are circumferentially arranged in a separated mode through an X-shaped PFA resin isolation core frame 5 and are stranded together to form a cable core. The outer diameter of the power wire core 1 is 2.2mm to 2.5mm, specifically, the power wire core 1 comprises a power conductor 18 and an XLPE insulating layer 19, and the power conductor 18 is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.02mm to 0.04mm to form a circular conductor structure. In one embodiment, the radio frequency core 2 includes a radio frequency conductor 20, and a foamed polypropylene inner insulating layer 21, an ETFE wrapped outer insulating layer 22, a shielding mesh conductor layer 23 and a polyester fiber plain-weave cloth wrapped layer 24 which are sequentially wrapped outside the radio frequency conductor 20, where the radio frequency conductor 20 is formed by twisting a plurality of tin-plated copper monofilaments and para-type wholly aromatic copolyamide drawn fibers together. The differential signal wire core group 3 is composed of two differential signal wire cores 11 and is arranged opposite to the power wire core 1, specifically, the differential signal wire core 11 comprises a central conductor 25, an FEP insulating layer 26, a copper wire wrapping shielding layer 27 and a PET resin extrusion layer 28, wherein the FEP insulating layer 26, the copper wire wrapping shielding layer 27 and the PET resin extrusion layer 28 are sequentially coated outside the central conductor 25, the central conductor 25 is a copper monofilament conductor, further, the copper wire wrapping shielding layer 27 is formed by mixing unidirectional spiral winding of tin-plated copper wires with two different wire diameters and a wire diameter ratio between 0.9 and 1, and the shielding density is 90% to 95%. The control wire core 4 comprises two insulated wire cores 12 twisted to form a wire core body, and the twisting distance of the insulated wire cores 12 is 20-60 times of the outer diameter of the insulated wire cores 12. The outer diameter of the insulated wire core 12 is 1mm to 1.35mm. The insulated wire core 12 comprises an inner conductor 13 and a silane grafted crosslinked low-density polyethylene insulated layer 14, and specifically, the inner conductor 13 is formed by concentrically twisting a plurality of tin-plated copper monofilaments with diameters of 0.01mm to 0.04 mm. The outside of the wire core body is sequentially coated with an iron powder polyethylene resin composite sub-winding layer 15, a copper wire winding sub-shielding layer 16 and a silane grafted crosslinked high-density polyethylene sheath layer 17. In one embodiment, the iron powder polyethylene resin composite sub-winding layer 15 is an iron powder polyethylene resin composite tape multi-layer lap wrap structure. In one embodiment, the copper wire winding sub-shielding layer 16 is formed by spirally winding double-layer tinned copper wires in opposite directions. The outer diameter ratio of the radio frequency wire core 2 to the control wire core 4 is 0.95:1 to 1.05:1, and the outer diameter ratio of the differential signal wire core 11 to the power wire core 1 is 0.7:1 to 0.85:1.
The cable core is externally extruded to form an oval cross-linked fluororubber inner sheath layer 6, and further, the length-axis ratio of the oval cross-linked fluororubber inner sheath layer (6) is 1.4:1 to 1.8:1. The outside of the oval crosslinked fluororubber inner sheath layer 6 is sequentially coated with an iron powder polyethylene resin composite total winding layer 7, a copper wire winding total shielding layer 8, a nylon anticorrosive layer 9 and a polyurethane outer sheath layer 10. In one embodiment, the iron powder polyethylene resin composite total winding layer 7 is an iron powder polyethylene resin composite belt multi-layer lapping and wrapping structure. In one embodiment, the copper wire winding total shielding layer 8 is formed by spirally winding double-layer tinned copper wires in opposite directions.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present utility model, and are not limited thereto; although embodiments of the present utility model have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The utility model provides a balanced type multi-media comprehensive shielding cable which characterized in that: the cable comprises a power wire core (1), a radio frequency wire core (2), a differential signal wire core group (3) and a control wire core (4), wherein the differential signal wire core group (3) and the control wire core (4) are circumferentially arranged in a separated mode through an X-shaped PFA resin isolation core frame (5) and are twisted together to form a cable core, an oval cross-linked fluororubber inner sheath layer (6) is formed by extruding and wrapping the outside of the cable core, an iron powder polyethylene resin composite total winding layer (7), a copper wire winding total shielding layer (8), a nylon anticorrosive layer (9) and a polyurethane outer sheath layer (10) are sequentially coated on the outside of the oval cross-linked fluororubber inner sheath layer (6), the differential signal wire core group (3) is formed by two differential signal wire cores (11) and are oppositely arranged with the power wire core (1), the control wire core (4) comprises two insulating wire cores (12) which are twisted in pairs, the insulating wire core (12) comprises an inner conductor (13) and a silane grafted cross-linked low-density polyethylene insulating layer (14), the outside of the cable core is sequentially coated with an iron powder resin composite winding layer (15), a copper wire winding shielding layer (16) and a grafted cross-linked high-density polyethylene sheath layer (17), the outer diameter of the iron powder resin composite winding layer (17) is 1.05 mm, the outer diameter of the radio frequency cable core (1.2.5 mm is 2.5mm, the outer diameter of the radio frequency cable core (1.05 mm is 2.2mm, and the outer diameter of the control wire core (1.05 mm is 2.2mm, the outer diameter ratio of the differential signal wire core (11) to the power wire core (1) is 0.7:1 to 0.85:1.
2. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the lay length of the insulated wire core (12) is 20 to 60 times of the outer diameter of the insulated wire core (12).
3. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the length-axis ratio of the oval cross-linked fluororubber inner sheath layer (6) is 1.4:1 to 1.8:1.
4. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the power supply wire core (1) comprises a power supply conductor (18) and an XLPE insulating layer (19), wherein the power supply conductor (18) is formed by twisting and compacting a plurality of soft copper wires with the wire diameters of 0.02mm to 0.04mm to form a circular conductor structure.
5. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the radio frequency wire core (2) comprises a radio frequency conductor (20), and a foaming polypropylene inner insulating layer (21), an ETFE wrapping outer insulating layer (22), a shielding reticular conductor layer (23) and a polyester fiber plain weave cloth wrapping layer (24) which are sequentially wrapped outside the radio frequency conductor (20), wherein the radio frequency conductor (20) is formed by twisting a plurality of tin-plated copper monofilaments and para-type wholly aromatic copolyamide drawn fibers together.
6. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the differential signal wire core (11) comprises a central conductor (25), and an FEP insulating layer (26), a copper wire wrapping shielding layer (27) and a PET resin extrusion layer (28) which are sequentially coated outside the central conductor (25), wherein the central conductor (25) is a copper monofilament conductor.
7. The structurally balanced multimedia composite shielded cable according to claim 6, characterized in that: the copper wire wrapping shielding layer (27) is formed by mixing tin-plated copper wires with two different wire diameters and a wire diameter ratio of 0.9-1 in a unidirectional spiral winding mode, and the shielding density is 90-95%.
8. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the copper wire winding total shielding layer (8) and the copper wire winding sub-shielding layer (16) are formed by mutually reversely spirally winding double-layer tinned copper wires.
9. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the inner conductor (13) is formed by concentrically twisting a plurality of tinned copper monofilaments with diameters of 0.01mm to 0.04 mm.
10. The structurally balanced multimedia composite shielded cable according to claim 1, characterized in that: the iron powder polyethylene resin composite total winding layer (7) and the iron powder polyethylene resin composite sub-winding layer (15) are both of an iron powder polyethylene resin composite belt multi-layer lapping and wrapping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320748233.4U CN219832281U (en) | 2023-04-07 | 2023-04-07 | Structure-balanced type multimedia comprehensive shielding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320748233.4U CN219832281U (en) | 2023-04-07 | 2023-04-07 | Structure-balanced type multimedia comprehensive shielding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219832281U true CN219832281U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320748233.4U Active CN219832281U (en) | 2023-04-07 | 2023-04-07 | Structure-balanced type multimedia comprehensive shielding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219832281U (en) |
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- 2023-04-07 CN CN202320748233.4U patent/CN219832281U/en active Active
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