CN217086205U - Tensile low-attenuation light communication cable - Google Patents
Tensile low-attenuation light communication cable Download PDFInfo
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- CN217086205U CN217086205U CN202220918724.4U CN202220918724U CN217086205U CN 217086205 U CN217086205 U CN 217086205U CN 202220918724 U CN202220918724 U CN 202220918724U CN 217086205 U CN217086205 U CN 217086205U
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- inner conductor
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- stretch
- low attenuation
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- 238000004891 communication Methods 0.000 title claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 36
- 238000004804 winding Methods 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 9
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 9
- 229910000077 silane Inorganic materials 0.000 claims abstract description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 238000005187 foaming Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005253 cladding Methods 0.000 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000017105 transposition Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production 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
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The utility model discloses a stretch-proofing low decay light communication cable, keep mutual interval and transposition formation cable core jointly through Y shape PFA stretch-proofing core strip including three inner conductor, the spacing distance between the inner conductor is not less than 0.5mm, and the external diameter of inner conductor is 0.5mm to 1.2mm, and the cable core outside cladding has the foaming fluororesin area in proper order to wind a packet insulating layer, conductive fiber winding shielding layer and silane grafting crosslinking high density polyethylene oversheath, and the foaming fluororesin area is 0.6 times to 0.75 times for the inner conductor external diameter around a packet insulating layer thickness. The cable has excellent tensile property, the conductor is not easy to break core and wire, the metal shielding layer is removed, the light and lightweight manufacture is realized, the signal attenuation is reduced, and the electrical shielding property is stable.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a stretch-proofing low-attenuation light communication cable.
Background
In an automated industrial production line, communication cables are often used for robots, mobile drive systems, and the like. The communication cable is required to have good flexibility, shielding performance, and electrical characteristics for long-distance transmission. However, in a normal working environment, the cable needs to be repeatedly bent, the tensile strength of a common cable is insufficient, core breaking and wire breaking are easily caused, the shielding effect is unstable, the electrical characteristics are affected, the durability and the usability are poor, and a shielding layer of a common communication cable generally adopts a metal braided shielding structure, so that the amount of copper wires is large, the weight is large, the manufacturing cost is high, and the requirements of light weight and light weight production are not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough, the technical problem that solve provides a stretch-proofing low-attenuation light communication cable, and stretch-proofing performance is excellent, and the conductor is difficult for appearing disconnected core broken string, gets rid of the metallic shield layer, realizes light lightweight preparation, reduces the signal attenuation volume, and electrical shielding performance is stable.
The utility model discloses a make above-mentioned technical problem solve through following technical scheme.
The tensile low-attenuation light communication cable comprises three inner conductors, wherein the three inner conductors are mutually spaced and jointly stranded through a Y-shaped PFA tensile core bar to form a cable core, the spacing distance between the inner conductors is not less than 0.5mm, the outer diameter of each inner conductor is 0.5mm to 1.2mm, a foamed fluororesin tape winding insulating layer, a conductive fiber winding shielding layer and a silane grafted crosslinked high-density polyethylene outer sheath are sequentially coated outside the cable core, and the thickness of the foamed fluororesin tape winding insulating layer is 0.6 times to 0.75 times of the outer diameter of each inner conductor.
Preferably, the inner conductor is formed by stranding a plurality of tinned copper monofilaments with the diameter of 0.01mm to 0.04 mm.
Preferably, the inner conductor lay length is 10 to 20 times the outer diameter of the inner conductor.
Preferably, the thickness of the foamed fluororesin tape is not less than 0.3 mm.
Preferably, the foamed fluororesin tape winding insulating layer is of a foamed fluororesin tape multi-layer winding structure.
Preferably, the thickness of the conductive fiber winding shielding layer is 0.05mm to 0.3 mm.
Preferably, the conductive fiber winding shielding layer is a conductive fiber bundle spiral winding structure, the winding density is 95-98%, and the conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating a copper conductive coating.
Preferably, the polyacrylonitrile-based carbon fiber has a wire diameter of not more than 25 μm.
Preferably, the lay length of the cable core is 15 to 30 times of the outer diameter of the inner conductor.
Preferably, the thickness of the outer sheath of the silane grafted and crosslinked high-density polyethylene is 0.5mm to 2.2 mm.
The utility model has the advantages that:
the special structural design of the Y-shaped PFA stretch-proofing core strip helps to bear lateral pressure during bending and improve the flexibility and stretch-proofing performance of the cable, the Y-shaped PFA stretch-proofing core strip can reduce local stress concentration of an inner conductor, prevent the inner conductor from deforming and breaking wires and ensure the stable electrical characteristics of the cable, and the spacing distance between the inner conductors is not less than 0.5mm, so that better high-frequency signal transmission characteristics are ensured and signal attenuation is restrained.
2. The metal shielding layer is removed, the disconnection of the metal shielding layer is avoided, the conductive fiber bundle wound on the shielding layer is formed by twisting polyacrylonitrile-based carbon fibers and coating copper conductive coatings, the metal shielding layer can be effectively replaced, the signal attenuation is reduced, the shielding performance is stable, the weight of the cable is effectively reduced, the cost is reduced, and the light production is realized.
3. The silane grafted crosslinked high-density polyethylene outer sheath has a small static friction coefficient, is beneficial to improving the flexibility of the cable, has strong capability of adapting to low-temperature working condition environment, is not easy to crack, and has better durability and usability.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present application.
In the figure: the cable comprises an inner conductor 1, a 2-Y-shaped PFA stretch-resistant core strip, a 3-foamed fluororesin tape wrapped insulating layer, a 4-conductive fiber wound shielding layer and a 5-silane grafted cross-linked high-density polyethylene outer sheath.
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 tensile low-attenuation lightweight communication cable according to the embodiment of the present invention includes three inner conductors 1, which are mutually spaced and jointly twisted to form a cable core by Y-shaped PFA tensile core strips 2. The interval distance between the inner conductors 1 is not less than 0.5mm, the external diameter of the inner conductors 1 is 0.5mm to 1.2mm, specifically speaking, the inner conductors 1 are formed by stranding a plurality of tinned copper monofilaments with the diameters of 0.01mm to 0.04mm, and the lay length of the inner conductors 1 is 10 times to 20 times of the external diameter of the inner conductors 1. Further, the lay length of the cable core is 15 to 30 times of the outer diameter of the inner conductor 1.
The cable core outside cladding has the foaming fluororesin area in proper order around package insulating layer 3, conductive fiber winding shielding layer 4 and silane grafting crosslinking high density polyethylene oversheath 5, the foaming fluororesin area is around package insulating layer 3 thickness do 1 external diameter of inner conductor 0.6 times to 0.75 times. In one embodiment, the foamed fluororesin tape is wrapped around the insulating layer 3 in a multi-layer wrapping structure, and preferably, the thickness of the foamed fluororesin tape is not less than 0.3mm around the insulating layer 3. In one embodiment, the conductive fiber winding shielding layer 4 is a conductive fiber bundle spiral winding structure, the winding density is 95% to 98%, the conductive fiber bundle is formed by twisting a plurality of polyacrylonitrile-based carbon fibers and coating the polyacrylonitrile-based carbon fibers with a copper conductive coating, specifically, the wire diameter of the polyacrylonitrile-based carbon fibers is not more than 25 μm, and further, the thickness of the conductive fiber winding shielding layer 4 is 0.05mm to 0.3 mm. The thickness of the silane grafted cross-linked high-density polyethylene outer sheath 5 is 0.5 mm-2.2 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. Stretch-proofing low decay light communication cable, characterized by: the cable comprises three inner conductors (1), wherein the three inner conductors (1) are mutually spaced and jointly stranded through Y-shaped PFA stretch-proof core strips (2) to form a cable core, the spacing distance between the inner conductors (1) is not less than 0.5mm, the outer diameter of each inner conductor (1) is 0.5mm to 1.2mm, the outer portion of the cable core is sequentially coated with a foamed fluororesin tape winding insulating layer (3), a conductive fiber winding shielding layer (4) and a silane grafted and crosslinked high-density polyethylene outer sheath (5), and the thickness of the foamed fluororesin tape winding insulating layer (3) is 0.6 times to 0.75 times of the outer diameter of each inner conductor (1).
2. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the inner conductor (1) is formed by stranding a plurality of tinned copper monofilaments with the diameter of 0.01mm to 0.04 mm.
3. The stretch resistant low attenuation lightweight communications cable of claim 2 further characterized by: the lay length of the inner conductor (1) is 10 to 20 times of the outer diameter of the inner conductor (1).
4. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the thickness of the foamed fluororesin tape winding insulation layer (3) is not less than 0.3 mm.
5. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the foamed fluororesin belt wrapping insulating layer (3) is of a multi-layer wrapping structure of foamed fluororesin belts.
6. The stretch resistant low attenuation lightweight communications cable according to claim 5 further characterized by: the thickness of the conductive fiber winding shielding layer (4) is 0.05mm to 0.3 mm.
7. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the conductive fiber winding shielding layer (4) is of a conductive fiber bundle spiral winding structure, the winding density is 95% -98%, and the conductive fiber bundle is formed by stranding a plurality of polyacrylonitrile-based carbon fibers and coating a copper conductive coating.
8. The stretch resistant low attenuation lightweight communications cable according to claim 7 further characterized by: the wire diameter of the polyacrylonitrile-based carbon fiber is not more than 25 μm.
9. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the lay length of the cable core is 15 to 30 times of the outer diameter of the inner conductor (1).
10. The stretch resistant low attenuation lightweight communications cable of claim 1 further characterized by: the thickness of the silane grafted cross-linked high-density polyethylene outer sheath (5) is 0.5 mm-2.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220918724.4U CN217086205U (en) | 2022-04-20 | 2022-04-20 | Tensile low-attenuation light communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220918724.4U CN217086205U (en) | 2022-04-20 | 2022-04-20 | Tensile low-attenuation light communication cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217086205U true CN217086205U (en) | 2022-07-29 |
Family
ID=82502455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220918724.4U Active CN217086205U (en) | 2022-04-20 | 2022-04-20 | Tensile low-attenuation light communication cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217086205U (en) |
-
2022
- 2022-04-20 CN CN202220918724.4U patent/CN217086205U/en active Active
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