CN220155219U - High-flexibility coaxial cable with anti-interference capability weakening function - Google Patents
High-flexibility coaxial cable with anti-interference capability weakening function Download PDFInfo
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- CN220155219U CN220155219U CN202321048061.6U CN202321048061U CN220155219U CN 220155219 U CN220155219 U CN 220155219U CN 202321048061 U CN202321048061 U CN 202321048061U CN 220155219 U CN220155219 U CN 220155219U
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- Prior art keywords
- coaxial cable
- layer
- winding
- high flexibility
- conductive fiber
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- 230000003313 weakening effect Effects 0.000 title claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000004760 aramid Substances 0.000 claims abstract description 15
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 15
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims abstract description 14
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 49
- 238000005452 bending Methods 0.000 abstract description 6
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 229920006231 aramid fiber Polymers 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical compound C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 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 a high-flexibility anti-interference-capability weakening type coaxial cable, which is characterized in that a central conductor is formed by concentrically twisting a plurality of strands, the strands are formed by tinned copper monofilament bundles, an aramid yarn twisting winding layer is formed by parallel unidirectional spiral winding of five to twenty aramid yarns with the wire diameters not smaller than 0.02mm outside the central conductor, the winding direction of the aramid yarn twisting winding layer is opposite to that of the strands, an XLPE extrusion inner insulating layer, an ETFE wrapping outer insulating layer, a conductive fiber winding shielding layer and an ethylene propylene diene monomer rubber sheath are sequentially coated outside the aramid yarn twisting winding layer, an EVA adhesive layer is arranged on the outer surface of the ETFE wrapping outer insulating layer, and a gap is formed between the conductive fiber winding shielding layer and the ethylene propylene diene monomer rubber sheath, and the gap distance is not smaller than 0.05mm. The coaxial cable has high flexibility, better bending resistance, less possibility of broken wires and fracture of the shielding layer and better durability, thereby inhibiting the weakening of the anti-interference capability.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a high-flexibility coaxial cable with reduced anti-interference capacity.
Background
Coaxial cable is one of the main varieties of wire and cable. Coaxial cables are required to have good flexibility and shielding properties. In an automatic industrial production line, electrical connection and control of a small robot, an electronic machine, and the like are required to be applied to a coaxial cable, and the coaxial cable must have good assurance in long-distance high-frequency signal transmission characteristics. However, due to the small diameter preparation of the coaxial cable, the coaxial cable is easy to cause insufficient flexibility and poor bending resistance, and when the cable is subjected to repeated bending, the shielding layer is easy to generate wire breakage and fracture, so that the cable has reduced anti-interference capability, is not durable to use, has short service life and high replacement and maintenance cost, and influences the normal and stable production order on the production line.
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 coaxial cable with high flexibility, reduced anti-interference capability, high flexibility, better bending resistance, less possibility of broken wires and fracture of a shielding layer, better durability, reduced anti-interference capability and prolonged service life.
The utility model solves the technical problems through the following technical proposal.
The utility model provides a high flexibility suppresses interference killing feature weakening type coaxial cable, includes the center conductor, the center conductor is the concentric transposition of a plurality of strands and constitutes, the strand is tin-plated copper monofilament bundle and constitutes, the outside of center conductor is through five to twenty lines footpath not less than 0.02mm aramid fiber twisted side by side unidirectional spiral winding formation aramid fiber twisted wire winding layer, aramid fiber twisted wire winding layer winding direction with the strand is twisted to opposite, outside cladding in proper order of aramid fiber twisted wire winding layer has XLPE crowded package inner insulation layer, ETFE around package outer insulation layer, conductive fiber winding shielding layer and ethylene propylene diene monomer sheath, ETFE is equipped with the EVA adhesive linkage around package outer insulation layer surface, conductive fiber winding shielding layer with be formed with clearance and clearance distance between the ethylene propylene diene monomer sheath not 0.05mm.
Preferably, the diameter of the tinned copper monofilament is 0.02mm to 0.08mm.
Preferably, the tinned copper monofilament is twisted in a direction opposite to the strand.
Preferably, the center conductor has a diameter of 0.5mm to 1.6mm.
Preferably, the strand lay is four to twenty times the diameter of the center conductor.
Preferably, the conductive fiber winding shielding layer is in a conductive fiber bundle spiral winding structure, the conductive fiber bundles are formed by twisting two polyacrylonitrile-based carbon fibers with different wire diameters and coating a copper conductive coating, and the wire diameters of the polyacrylonitrile-based carbon fibers are not more than 25 mu m.
Preferably, the winding distance of the aramid twisted wire is 2mm to 4mm.
Preferably, the XLPE extrusion inner insulation layer and the ETFE wrap outer insulation layer together have a thickness of no more than 0.45mm.
Preferably, the gap distance between the conductive fiber winding shielding layer and the ethylene propylene diene monomer rubber sheath is not more than 0.15mm.
Preferably, the ethylene propylene diene monomer rubber sheath has a thickness of 0.3mm to 0.8mm.
The utility model has the beneficial effects that:
1. the central conductor of the cable is formed by concentrically twisting the strands and the strands are formed by twisting tinned copper monofilament bundles, the twisting direction of the tinned copper monofilament bundles is opposite to that of the strands, the flexibility of the central conductor is improved, deformation broken wires are restrained, the wire diameter of the tinned copper monofilament is 0.02-0.08 mm, the high flexibility and the good mechanical strength of the central conductor are considered, the aramid fiber twisted wire winding layer can prevent the central conductor from being twisted and loosened, better signal transmission characteristics and characteristic impedance are ensured, the bending resistance performance is enhanced, and the cable is durable to apply.
The EVA adhesive layer is arranged on the outer surface of the ETFE wrapping outer insulating layer, so that the conductive fiber wrapping shielding layer and the ETFE wrapping outer insulating layer are kept closely connected into a whole, the friction coefficient of the ETFE resin is small, stress concentration of the conductive fiber wrapping shielding layer is reduced, torque force is reduced, gaps are formed between the conductive fiber wrapping shielding layer and the ethylene propylene diene monomer rubber sheath, the gap distance is not smaller than 0.05mm, compared with the gap distance, the cable has higher characteristic impedance, when the cable is bent, the cable is prevented from adhering to the ethylene propylene diene monomer rubber sheath and being twisted and bent, the torque force of the shielding layer is reduced, the bending resistance is improved, the broken line and the fracture of the shielding layer are reduced, the durability is better, the anti-interference capability is inhibited from weakening, and the service life is prolonged.
3. The gap distance between the conductive fiber winding shielding layer and the ethylene propylene diene monomer rubber sheath is not less than 0.05mm and not more than 0.15mm, the gap distance is too large, the heat conduction efficiency is reduced, the temperature of a central conductor is easy to be high, the gap distance is too small, the conductive fiber winding shielding layer and the ethylene propylene diene monomer rubber sheath can be adhered under the high-temperature working state, the shielding layer is easy to break, the anti-interference capability is weakened, and the ethylene propylene diene monomer rubber sheath is not durable to use.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.
In the figure: the cable comprises a 1-central conductor, a 2-aramid yarn twisting winding layer, a 3-XLPE extrusion inner insulating layer, a 4-ETFE wrapping outer insulating layer, a 5-conductive fiber winding shielding layer, a 6-ethylene propylene diene monomer rubber sheath and 7-gaps.
Description of the embodiments
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the coaxial cable with high flexibility and reduced anti-interference capability according to the embodiment of the utility model comprises a central conductor 1, wherein the central conductor 1 is formed by concentrically twisting a plurality of strands, and the strand lay is four to twenty times of the diameter of the central conductor 1. The strand wires are formed by twisting tinned copper monofilament bundles, and specifically, the diameter of each tinned copper monofilament is 0.02mm to 0.08mm. Further, the tinned copper monofilament is twisted opposite the strand. The central conductor 1 has a diameter of 0.5mm to 1.6mm. The outside of the central conductor 1 is formed into an aramid yarn twisting winding layer 2 by parallel unidirectional spiral winding of five to twenty aramid yarn twisting yarns with the wire diameter not smaller than 0.02mm, the winding direction of the aramid yarn twisting winding layer 2 is opposite to the twisting direction of the strands, and further, the winding distance of the aramid yarn twisting yarns is 2mm to 4mm. The outside of the aramid fiber twisted wire winding layer 2 is sequentially coated with an XLPE extrusion inner insulating layer 3, an ETFE wrapping outer insulating layer 4, a conductive fiber winding shielding layer 5 and an ethylene propylene diene monomer rubber sheath 6, and an EVA adhesive layer is arranged on the outer surface of the ETFE wrapping outer insulating layer 4. In one embodiment, the conductive fiber winding shielding layer 5 is a conductive fiber bundle spiral winding structure, the conductive fiber bundle is formed by twisting two polyacrylonitrile-based carbon fibers with different wire diameters and coating a copper conductive coating, and the wire diameter of the polyacrylonitrile-based carbon fibers is not more than 25 μm. And a gap 7 is formed between the conductive fiber winding shielding layer 5 and the ethylene propylene diene monomer rubber sheath 6, the gap distance is not less than 0.05mm, and further, the gap distance is not more than 0.15mm. The sum of the thickness of the XLPE extrusion inner insulating layer 3 and the ETFE wrapping outer insulating layer 4 is not more than 0.45mm. The thickness of the ethylene propylene diene monomer rubber sheath 6 is 0.3mm to 0.8mm.
The present utility model has been described in terms of embodiments, and it will be appreciated by those of skill in the art that various changes can be made to the features and embodiments, or equivalents can be substituted, without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The coaxial cable with the high flexibility and the anti-interference capability weakening type is characterized in that: including center conductor (1), center conductor (1) constitutes for the concentric transposition of a plurality of strands, the strand constitutes for tinned copper monofilament bundle hank, center conductor (1) outside is through five to twenty wire footpath not less than 0.02mm aramid twist parallel unidirectional spiral winding forms aramid twist winding layer (2), aramid twist winding layer (2) wind to with the strand hank is opposite, outside cladding has in proper order XLPE crowded package inner insulation layer (3), ETFE around package outer insulation layer (4), conductive fiber winding shielding layer (5) and ethylene propylene diene monomer rubber sheath (6) of aramid twist winding layer (2), ETFE is equipped with the EVA adhesive linkage around package outer insulation layer (4) surface, conductive fiber winding shielding layer (5) with be formed with clearance (7) and gap distance between ethylene propylene diene monomer rubber sheath (6) and be not less than 0.05mm.
2. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the diameter of the tinned copper monofilament is 0.02mm to 0.08mm.
3. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the tinned copper monofilament is twisted opposite the strand.
4. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the central conductor (1) has a diameter of 0.5mm to 1.6mm.
5. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the strand lay is four to twenty times the diameter of the central conductor (1).
6. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the conductive fiber winding shielding layer (5) is of a conductive fiber bundle spiral winding structure, the conductive fiber bundles are formed by twisting two polyacrylonitrile-based carbon fibers with different wire diameters and coating copper conductive coatings, and the wire diameters of the polyacrylonitrile-based carbon fibers are not more than 25 mu m.
7. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the winding distance of the aramid yarn is 2mm to 4mm.
8. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the sum of the thickness of the XLPE extrusion inner insulating layer (3) and the ETFE wrapping outer insulating layer (4) is not more than 0.45mm.
9. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the gap distance between the conductive fiber winding shielding layer (5) and the ethylene propylene diene monomer rubber sheath (6) is not more than 0.15mm.
10. The high flexibility reduced interference rejection coaxial cable of claim 1, wherein: the thickness of the ethylene propylene diene monomer rubber sheath (6) is 0.3mm to 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321048061.6U CN220155219U (en) | 2023-05-05 | 2023-05-05 | High-flexibility coaxial cable with anti-interference capability weakening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321048061.6U CN220155219U (en) | 2023-05-05 | 2023-05-05 | High-flexibility coaxial cable with anti-interference capability weakening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220155219U true CN220155219U (en) | 2023-12-08 |
Family
ID=89013533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321048061.6U Active CN220155219U (en) | 2023-05-05 | 2023-05-05 | High-flexibility coaxial cable with anti-interference capability weakening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220155219U (en) |
-
2023
- 2023-05-05 CN CN202321048061.6U patent/CN220155219U/en active Active
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