CN212934246U - Symmetrical high-speed cable - Google Patents
Symmetrical high-speed cable Download PDFInfo
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- CN212934246U CN212934246U CN202021614442.2U CN202021614442U CN212934246U CN 212934246 U CN212934246 U CN 212934246U CN 202021614442 U CN202021614442 U CN 202021614442U CN 212934246 U CN212934246 U CN 212934246U
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Abstract
The utility model discloses a symmetry high-speed cable, including the oversheath layer, set up two high-speed cable cores in the oversheath layer, every high-speed cable core all includes a plurality of pairs of signal line, every pair of signal line all includes the internal shield layer and is located two wires and two ground wires of internal shield in situ, two ground wire symmetries set up in two wire both sides, wherein two pairs of signal line in the same high-speed cable core form the sinle silk, surplus signal line is arranged and is formed the signal layer around the sinle silk, the outside cladding of signal layer is around the covering, around the outside cladding weaving layer of covering, the outside cladding inner sheath layer of weaving layer, the inner sheath layer outside is the oversheath layer. The utility model provides a symmetry high speed cable, signal transmission is fast, and the decline reduces in the signal transmission process, and mutual interference between the signal line pair is little, solves the cable crosstalk problem, and the stable position of signal line pair, processing is convenient, and overall structure is simple, round, long service life.
Description
Technical Field
The utility model belongs to the technical field of the cable, concretely relates to symmetry high-speed cable.
Background
In many scientific and technological fields such as aerospace, boats and ships, the speed of cable signal transmission, the intensity of noise and the like are all key factors for measuring the technological level. However, the conventional cables are high in power consumption, slow in signal transmission, poor in anti-electromagnetic interference capability between the cables, easy to cause crosstalk and the like, so that the research and development of a novel symmetrical high-speed cable has important practical significance.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that exists among the prior art, the utility model aims to provide a symmetry high-speed cable.
In order to realize the above purpose, reach above-mentioned technological effect, the utility model discloses a technical scheme be:
the utility model provides a symmetry high speed cable, including the oversheath layer, set up two high speed cable cores in the oversheath layer, every high speed cable core all includes a plurality of pairs of signal line, every pair of signal line all includes internal shield layer and is located two wires and two ground wires of internal shield layer, two ground wire symmetries set up in two wire both sides, wherein two pairs of signal line in the same high speed cable core form the sinle silk, surplus signal line is arranged and is formed the signal layer around the sinle silk, the outside cladding of signal layer is around the covering, around the outside cladding weaving layer of covering, the outside cladding inner sheath layer of weaving layer, the inside sheath layer outside is the oversheath layer, the clearance between oversheath layer and two high speed cable cores fills the cable drain.
Two high-speed cable cores are symmetrically arranged in parallel in the outer sheath layer, two pairs of signal lines in the same high-speed cable core are symmetrically arranged at the central position of the high-speed cable cores in an up-and-down mode to form a wire core, a separation sheet is arranged between the two pairs of signal lines, and the rest pairs of signal lines are uniformly distributed on the periphery of the wire core along the circumferential direction.
The separating sheet is in a linear, + -, or I-shaped structure, and is a PP sheet.
The cable core is coated with a sheath, the signal layer is arranged outside the sheath, and the sheath is a PP belt layer.
The lead comprises a conductor and an insulating layer coated outside the conductor.
The conductor is silver-plated copper, the insulating layer is a PE insulating layer, and the thickness is 0.4-0.5 mm.
The braided layer is a tinned copper braided layer, and the coverage rate of the braided layer is not less than 85%.
The inner sheath layer and the outer sheath layer are respectively PVC layers, and the thickness of the inner sheath layer and the outer sheath layer is 0.5-0.6 mm.
The inner shielding layer is an aluminum foil PET layer.
The outer side of the outer sheath layer is sequentially provided with one or more combinations of an insect repelling layer, a waterproof layer and a fluorescent layer from inside to outside, and the thicknesses of the insect repelling layer, the waterproof layer and the fluorescent layer are respectively 0.05-1.0 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a symmetry high speed cable, including the oversheath layer, set up two high-speed cable cores in the oversheath layer, every high-speed cable core all includes a plurality of pairs of signal line, every pair of signal line all includes the internal shield layer and is located two wires and two ground wires of internal shield layer, two ground wire symmetries set up in two wire both sides and coaxial, wherein two pairs of signal line in the same high-speed cable core form the sinle silk, surplus signal line is arranged and is formed the signal layer around the sinle silk, the outside cladding of signal layer is around the covering, around the outside cladding weaving layer of covering, the outside cladding inner sheath layer of weaving layer, the inner sheath layer outside is the oversheath layer, the clearance between oversheath layer and two high-speed cable cores fills the cable conductor. The utility model provides a symmetry high speed cable, signal transmission is fast, and the decline reduces in the signal transmission process, and mutual interference between the signal line pair is little, solves the cable crosstalk problem, and the stable position of signal line pair, processing is convenient, and shielding property is good, and the cladding sheath prolongs the life of cable, satisfies the requirement and the adverse circumstances normal use of electrical property, and overall structure is simple, round, and low cost has higher practical value.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a wire core according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a signal line pair according to the present invention;
fig. 4 is a schematic structural diagram of a signal layer according to the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 6 is a schematic structural diagram of a wire core according to embodiment 2 of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making the scope of the invention more clearly defined.
Example 1
As shown in fig. 1-4, a symmetric high-speed cable includes an outer sheath layer 7, two high-speed cable cores are disposed in the outer sheath layer 7, each high-speed cable core includes a plurality of pairs of signal lines 10, each pair of signal lines 10 includes an inner shield layer 14, two wires and two ground wires 13 located in the inner shield layer 14, the two ground wires are symmetrically disposed on two sides of the two wires, which are away from each other, central axes of the two wires and the two ground wires 13 are located on the same straight line, two pairs of signal lines 10 in the same high-speed cable core form a wire core 1, the remaining signal lines 10 are arranged around the wire core and form a signal layer 20, the signal layer 20 is externally coated on the wrapping layer 4, the braiding layer 5 is externally coated on the braiding layer 5, the inner sheath layer 6 is externally provided with the outer sheath layer 7, and a gap between the outer sheath layer 7 and the two high-speed cable cores is filled.
Two high-speed cable cores are symmetrically arranged in parallel in the outer sheath layer 7, two pairs of signal lines 10 in the same high-speed cable core are symmetrically arranged at the central position of the high-speed cable cores in an up-and-down mode to form a wire core 1, a separation sheet 2 is arranged between the two pairs of signal lines 10, and the rest pairs of signal lines 10 are uniformly distributed on the periphery of the wire core 1 along the circumferential direction.
The gap between the outer sheath layer 7 and the two high-speed cable cores is triangular, and the gap is filled with a flexible smooth material with low dielectric constant and low dielectric loss.
The separating plate 2 is a PP plate and is in a shape of a straight line, and is used for separating the two pairs of signal lines 10, ensuring the distance between the two pairs of signal lines 10, reducing the mutual signal interference between the signal lines 10, and improving or solving the crosstalk problem of the cable.
The outside cladding sheath 3 of sinle silk, the signal layer is located the sheath 3 outsidely, and sheath 3 is PP belting layer.
The wrapping layer 4 is a PP tape wrapping layer, protects the inner shielding layer 14, and plays roles of buffering and lining.
The braided layer 5 is a tinned copper braided layer, the coverage rate of the braided layer 5 is not less than 85%, and the oxidation resistance is high.
The inner sheath layer 6 and the outer sheath layer 7 are respectively PVC layers, the thickness is 0.5-0.6 mm, the flame retardance is good, the cable can be protected from being damaged by the external environment, and the service life is prolonged.
The central position of the gap between the outer sheath layer 7 and the two high-speed cable cores is filled with a cable drainage wire 8, and the cable drainage wire 8 is made of a tin-plated copper wire, so that the lightning protection effect is achieved, and lightning stroke current is avoided.
The lead comprises a conductor 11 and an insulating layer 12 coated outside the conductor 11, the conductor 11 is a silver-plated copper conductor and can be formed by twisting single wires or multiple wires, according to the skin effect and the transmission of high-frequency signals, most of the signals are transmitted on the surface of the conductor 11, the attenuation coefficient of silver is much smaller than that of copper, and the attenuation of the signals in the transmission process can be reduced and the loss is reduced by adopting the silver-plated copper conductor.
The insulation layer 12 is a PE insulation layer with a thickness of 0.4-0.5 mm.
The inner shielding layer 14 is an aluminum foil PET layer, the aluminum foil of the aluminum foil PET layer is positioned on the outer side of the signal line pair 10, and the shielding performance is good.
In order to improve the functionality of the cable, one or more combinations of an insect repelling layer, a waterproof layer and a fluorescent layer are sequentially arranged on the outer side of the outer sheath layer 7 from inside to outside, so that the comprehensive performance is improved, and the thicknesses of the insect repelling layer, the waterproof layer and the fluorescent layer are respectively 0.05-1.0 mm.
Example 2
As shown in fig. 3-6, a symmetric high-speed cable includes an outer sheath layer 7, two high-speed cable cores are disposed in the outer sheath layer 7, each high-speed cable core includes a plurality of pairs of signal pairs 10, each pair of signal pairs 10 includes an inner shield layer 14, two wires and two ground wires 13 located in the inner shield layer 14, the two ground wires are symmetrically disposed on two sides of the two wires, which are away from each other, central axes of the two wires and the two ground wires 13 are located on the same straight line, two pairs of signal pairs 10 in the same high-speed cable core form a wire core 1, the remaining signal pairs 10 are arranged around the wire core and form a signal layer 20, the signal layer 20 is externally coated on the wrapping layer 4, the braiding layer 5 is externally coated on the braiding layer 5, the outer sheath layer 6 is externally provided with the outer sheath layer 7, and a gap between the outer sheath layer 7 and the two high-speed cable cores is filled.
Two high-speed cable cores are symmetrically arranged in parallel in the outer sheath layer 7, two pairs of signal lines 10 in the same high-speed cable core are symmetrically arranged at the central position of the high-speed cable cores in an up-and-down mode to form a wire core 1, a separation sheet 2 is arranged between the two pairs of signal lines 10, and the rest pairs of signal lines 10 are uniformly distributed on the periphery of the wire core 1 along the circumferential direction.
The gap between the outer sheath layer 7 and the two high-speed cable cores is triangular, and the gap is filled with a flexible smooth material with low dielectric constant and low dielectric loss.
The separating sheet 2 is a PP sheet, is "+" - "shaped, and can be designed into an i-shaped structure for separating two pairs of signal pairs 10, so as to ensure the distance between the two pairs of signal pairs 10, reduce the mutual signal interference between the signal pairs 10, and improve or solve the crosstalk problem of the cable.
The outside cladding sheath 3 of sinle silk, the signal layer is located the sheath 3 outsidely, and sheath 3 is PP belting layer.
The wrapping layer 4 is a PP tape wrapping layer, protects the inner shielding layer 14, and plays roles of buffering and lining.
The braided layer 5 is a tinned copper braided layer, the coverage rate of the braided layer 5 is not less than 85%, and the oxidation resistance is high.
The inner sheath layer 6 and the outer sheath layer 7 are respectively PVC layers, the thickness is 0.5-0.6 mm, the flame retardance is good, the cable can be protected from being damaged by the external environment, and the service life is prolonged.
The central position of the gap between the outer sheath layer 7 and the two high-speed cable cores is filled with a cable drainage wire 8, and the cable drainage wire 8 is made of a tin-plated copper wire, so that the lightning protection effect is achieved, and lightning stroke current is avoided.
The lead comprises a conductor 11 and an insulating layer 12 coated outside the conductor 11, the conductor 11 is a silver-plated copper conductor and can be formed by twisting single wires or multiple wires, according to the skin effect and the transmission of high-frequency signals, most of the signals are transmitted on the surface of the conductor 11, the attenuation coefficient of silver is much smaller than that of copper, and the attenuation of the signals in the transmission process can be reduced and the loss is reduced by adopting the silver-plated copper conductor.
The insulation layer 12 is a PE insulation layer with a thickness of 0.4-0.5 mm.
The inner shielding layer 14 is an aluminum foil PET layer, the aluminum foil of the aluminum foil PET layer is positioned on the outer side of the signal line pair 10, and the shielding performance is good.
In order to improve the functionality of the cable, one or more combinations of an insect repelling layer, a waterproof layer and a fluorescent layer are sequentially arranged on the outer side of the outer sheath layer 7 from inside to outside, so that the comprehensive performance is improved, and the thicknesses of the insect repelling layer, the waterproof layer and the fluorescent layer are respectively 0.05-1.0 mm.
The part of the utility model which is not described in detail can be realized by adopting the prior art, and the description is not repeated here.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a symmetry high speed cable, including the oversheath layer, a serial communication port, set up two high speed cable cores in the oversheath layer, every high speed cable core all includes a plurality of pairs of signal line pair, every pair of signal line pair all includes the internal shield layer and is located two wires and two ground wires of internal shield layer, two ground wires symmetry set up in two wire both sides, wherein two pairs of signal line in the same high speed cable core form the sinle silk, surplus signal line pair is arranged and is formed the signal layer around the sinle silk, the outside cladding of signal layer is around the covering, around the outside cladding weaving layer of covering, the outside cladding inner sheath layer of weaving layer, the outer sheath layer outside is the oversheath layer, the clearance between oversheath layer and two high speed cable cores fills cable drainage.
2. The symmetrical high-speed cable according to claim 1, wherein two high-speed cable cores are symmetrically arranged in parallel in the outer sheath layer, two pairs of signal lines in the same high-speed cable core are symmetrically arranged at the central position of the high-speed cable cores in an up-and-down manner to form a cable core, a separation sheet is arranged between the two pairs of signal lines, and the rest pairs of signal lines are uniformly distributed at the periphery of the cable core along the circumferential direction.
3. The symmetric high-speed cable according to claim 2, wherein the separator is a linear, + -or i-shaped structure, and the separator is a PP sheet.
4. A symmetric high-speed cable according to claim 1 or 2, wherein the core is covered with a sheath on the outside, the signal layer is located on the outside of the sheath, and the sheath is a PP tape layer.
5. A symmetric high-speed cable according to claim 1, wherein the conductor comprises a conductor and an insulating layer covering the conductor.
6. A symmetric high-speed cable according to claim 5, wherein the conductor is silver-plated copper, the insulation layer is PE insulation layer, and the thickness is 0.4-0.5 mm.
7. A symmetric high-speed cable according to claim 1, wherein said braid is a tin-plated copper braid, and the coverage of the braid is not less than 85%.
8. A symmetrical high-speed cable according to claim 1, wherein the inner sheath layer and the outer sheath layer are PVC layers with a thickness of 0.5-0.6 mm.
9. A symmetric high-speed cable according to claim 1, wherein the inner shield layer is a layer of aluminum foil PET.
10. The symmetrical high-speed cable according to claim 1, wherein one or more combinations of an insect-repellent layer, a waterproof layer and a fluorescent layer are sequentially disposed from inside to outside on the outside of the outer sheath layer, and the insect-repellent layer, the waterproof layer and the fluorescent layer have a thickness of 0.05-1.0mm, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021614442.2U CN212934246U (en) | 2020-08-06 | 2020-08-06 | Symmetrical high-speed cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021614442.2U CN212934246U (en) | 2020-08-06 | 2020-08-06 | Symmetrical high-speed cable |
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| Publication Number | Publication Date |
|---|---|
| CN212934246U true CN212934246U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021614442.2U Active CN212934246U (en) | 2020-08-06 | 2020-08-06 | Symmetrical high-speed cable |
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|---|---|
| CN (1) | CN212934246U (en) |
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- 2020-08-06 CN CN202021614442.2U patent/CN212934246U/en active Active
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