CN106158136B - Inner shield data signal balanced cable - Google Patents
Inner shield data signal balanced cable Download PDFInfo
- Publication number
- CN106158136B CN106158136B CN201510203643.0A CN201510203643A CN106158136B CN 106158136 B CN106158136 B CN 106158136B CN 201510203643 A CN201510203643 A CN 201510203643A CN 106158136 B CN106158136 B CN 106158136B
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- type star
- inner shield
- star quad
- shield type
- twisted wire
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Abstract
The invention discloses a kind of inner shield data signal balanced cable, including at least four twisted wire units, wherein twisted wire unit is inner shield type star quad or external shield type star quad, and inner shield type star quad and the alternate setting of external shield type star quad, are disposed with band, aluminium sheath, inner sheath, copper strips and oversheath from inside to outside on the outside of twisted wire unit.The inner shield data signal balanced cable of the present invention, the electric property and anti-cross-talk effect of cable are improved using the alternate setting of inner shield type star quad and external shield type star quad.
Description
Technical field
The present invention relates to technical field of electric wires and cables, more particularly to a kind of inner shield data signal balanced cable.
Background technology
The core of balanced cable is the pair twist loop being made up of the wire stranding of two mutually insulateds.Pair twist loop transfer
Signal code be pulsation alternating current, the transmission quality in pair twist loop determines the total quality of balanced cable.In pair twist loop
In, two insulated conductors A and B, actual is exactly the capacitor of one group of pole plate endless, when current phase is in 0~180 °,
Capacitor A pole plates positively charged, B pole plates are negatively charged, when current phase is in 181~360 °, capacitor A pole plates are negatively charged,
B pole plate positively chargeds, next cycle is also so circulated.It is neighbouring by causing when capacitor loops constantly charge, discharged
The electric component such as other pair twist loops and screen layer produces sensing electrically and magnetically.Electric property of AB loops itself and by AB return
Other electric properties caused by road, the comprehensive transmission quality for constituting balanced cable, these electric properties include once transmission ginseng
Number, secondary transmission parameter, interference parameter, a secondary interference parameter etc..Wherein, primary transmission parameter includes：Effective resistance, electricity
Sense, electric capacity, insulation conductance, secondary transmission parameter include：Attenuation constant, phase-shift constant, wave impedance, electromagnetic wavelength and transmission speed
Degree, one time interference parameter includes：Electromagnetic coupled, coupled impedance, secondary interference parameter include：Loop cross-talk, pair between cross-talk.
The stranded mode of balanced cable includes two line groups and quad.Existing digital signal cable impedance is big, electrical resistance
Can be bad, anti-cross-talk performance is not fine.
The content of the invention
It is an object of the invention to provide a kind of good electric property, the inner shield data signal of effective anti-cross-talk is symmetrically electric
Cable.
To achieve the above object, the invention provides a kind of inner shield data signal balanced cable, including at least four twist
Line unit, wherein twisted wire unit are inner shield type star quad and external shield type star quad, and inner shield type star quad stranding
Quad and the alternate setting of external shield type star quad, are disposed with band, aluminium shield from inside to outside on the outside of twisted wire unit
Set, inner sheath, copper strips and oversheath.The inner shield data signal balanced cable of the present invention, utilizes inner shield type star quad
It is alternate with external shield type star quad to set to improve the electric property and anti-cross-talk effect of cable.
As a further improvement on the present invention, it is provided with center in the middle of each described twisted wire unit and bears cored wire；Each
It is additionally provided between the individual twisted wire unit and bears cored wire；Anti- electrochemical coating is provided with the aluminium sheath；The anti-electrification
Coating is ceramic coating or metal carbide ceramic coating.Center, which bears cored wire and bears cored wire, improves the strong of cable
Degree, increases stretching-resisting bending-resisting performance；The anti-electrochemical coating of aluminium sheath can anti-electro-chemical reaction, improve cable using effect and use
Life-span.
Wherein, the outside of inner shield type star quad internally four cored wires is coated with screen layer, external shield type star
Twisting quad integral coating outside whole four cores group has screen layer；The screen layer is compound copper-plastics band, soft copper band or copper
Braid over braid.
The inner shield data signal balanced cable of the present invention, on the basis of original signal cable index is met, is improved
The Universal electric performance of cable, while improving the performances such as impedance, decay, cross-talk.The antijamming capability between line group is improved, it is real
Show with frequency with cable transmission, and when two piece signal cables of the cross-talk with being divided to cable between shielding group under core ground-fault condition
It is equivalent, it is effectively improved the security of system.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is the structural representation of the embodiment of the present invention three；
Wherein, protected in 1- inner shields type star quad, 2- external shield type star quads, 3- bands, 4- aluminium sheaths, 5-
Set, 6- copper strips, 7- oversheaths, 8- bears cored wire, and 9- centers bear cored wire, 10- screen layers.
Embodiment
The optimal technical scheme that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment one
As shown in figure 1, the inner shield data signal balanced cable of the present invention, wherein including four twisted wire units, twisted wire list
Member is inner shield type star quad 1 and external shield type star quad 2, and inner shield type star quad 1 and external shield
Type star quad 2 it is alternate set, be disposed with from inside to outside on the outside of twisted wire unit band 3, aluminium sheath 4, inner sheath 5,
Copper strips 6 and oversheath 7, are provided with anti-electrochemical coating on the aluminium sheath 4；The anti-electrochemical coating is ceramic coating or carbon
Compound metal-cermic coating.Wherein, the outside of internally four cored wires of inner shield type star quad 1 is coated with screen layer
10, the integral coating outside whole four cores group of external shield type star quad 2 has screen layer 10；The screen layer 10 is that copper modeling is multiple
Crossed belt, soft copper band or copper braid over braid.
Embodiment two
As shown in Fig. 2 the inner shield data signal balanced cable of the present invention, wherein including four twisted wire units, twisted wire list
Member is inner shield type star quad 1 and external shield type star quad 2, and inner shield type star quad 1 and external shield
Type star quad 2 it is alternate set, be disposed with from inside to outside on the outside of twisted wire unit band 3, aluminium sheath 4, inner sheath 5,
Copper strips 6 and oversheath 7, in the middle of each described twisted wire unit being provided with center bears cored wire 9；Each described twisted wire unit it
Between be additionally provided with and bear cored wire 8；Anti- electrochemical coating is provided with the aluminium sheath 4；The anti-electrochemical coating is ceramic coating
Or metal carbide ceramic coating.Wherein, the outside of internally four cored wires of inner shield type star quad 1 is coated with screen
Layer 10 is covered, the integral coating outside whole four cores group of external shield type star quad 2 has screen layer 10；The screen layer 10 is copper
Plastic composite strip, soft copper band or copper braid over braid.
Embodiment three
As shown in figure 3, the inner shield data signal balanced cable of the present invention, wherein including six twisted wire units, twisted wire list
Member is inner shield type star quad 1 and external shield type star quad 2, and inner shield type star quad 1 and external shield
Type star quad 2 it is alternate set, be disposed with from inside to outside on the outside of twisted wire unit band 3, aluminium sheath 4, inner sheath 5,
Copper strips 6 and oversheath 7, in the middle of each described twisted wire unit being provided with center bears cored wire 9；Set on the aluminium sheath 4
There is anti-electrochemical coating；The anti-electrochemical coating is ceramic coating or metal carbide ceramic coating.Wherein, inner shield type star quad stranding
The outside of internally four cored wires of quad 1 is coated with screen layer 10, and external shield type star quad 2 is outside whole four cores group
Face integral coating has screen layer 10；The screen layer 10 is compound copper-plastics band, soft copper band or copper braid over braid.
The inner shield data signal balanced cable of the present invention, utilizes inner shield type star quad and external shield type star quad stranding four
Line group is alternate to be set to improve the electric property and anti-cross-talk effect of cable.
Center bears cored wire and bears the intensity that cored wire improves cable, increases stretching-resisting bending-resisting performance；Aluminium sheath it is anti-
Electrochemical coating can anti-electro-chemical reaction, the using effect and service life of raising cable.
The inner shield data signal balanced cable of the present invention, on the basis of original signal cable index is met, is improved
The Universal electric performance of cable, while improving the performances such as impedance, decay, cross-talk.The antijamming capability between line group is improved, it is real
Show with frequency with cable transmission, and when two piece signal cables of the cross-talk with being divided to cable between shielding group under core ground-fault condition
It is equivalent, it is effectively improved the security of system.
Claims (3)
1. a kind of inner shield data signal balanced cable, it is characterised in that：Including at least four twisted wire units, wherein twisted wire unit
For inner shield type star quad and external shield type star quad, and inner shield type star quad and external shield type star quad stranding
Quad is alternate to be set, and is disposed with band, aluminium sheath, inner sheath, copper strips and outer shield from inside to outside on the outside of twisted wire unit
Cover, being provided with center in the middle of each described twisted wire unit bears cored wire, is additionally provided with and holds between each described twisted wire unit
Cored wire is drawn, anti-electrochemical coating is provided with the aluminium sheath, the outside of inner shield type star quad internally four cored wires
Screen layer is coated with, external shield type star quad integral coating outside whole four cores group has screen layer.
2. inner shield data signal balanced cable as claimed in claim 1, it is characterised in that：The screen layer is that copper modeling is compound
Band, soft copper band or copper braid over braid.
3. inner shield data signal balanced cable as claimed in claim 2, it is characterised in that：The anti-electrochemical coating is ceramics
Coating or metal carbide ceramic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203643.0A CN106158136B (en) | 2015-04-27 | 2015-04-27 | Inner shield data signal balanced cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203643.0A CN106158136B (en) | 2015-04-27 | 2015-04-27 | Inner shield data signal balanced cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106158136A CN106158136A (en) | 2016-11-23 |
| CN106158136B true CN106158136B (en) | 2017-10-20 |
Family
ID=57346479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510203643.0A Active CN106158136B (en) | 2015-04-27 | 2015-04-27 | Inner shield data signal balanced cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106158136B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202905246U (en) * | 2012-09-20 | 2013-04-24 | 铜陵市铜都特种线缆厂 | Fireproof flame retardation tensile double shielding cable |
| CN103811120A (en) * | 2012-11-15 | 2014-05-21 | 扬州市金阳光电缆有限公司 | Cable for track traffic |
| CN104252889A (en) * | 2013-06-26 | 2014-12-31 | 申晓华 | High-strength anti-interference variable-frequency cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20016527U1 (en) * | 2000-09-23 | 2000-11-30 | Alcatel Sa | Electrical installation line |
-
2015
- 2015-04-27 CN CN201510203643.0A patent/CN106158136B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202905246U (en) * | 2012-09-20 | 2013-04-24 | 铜陵市铜都特种线缆厂 | Fireproof flame retardation tensile double shielding cable |
| CN103811120A (en) * | 2012-11-15 | 2014-05-21 | 扬州市金阳光电缆有限公司 | Cable for track traffic |
| CN104252889A (en) * | 2013-06-26 | 2014-12-31 | 申晓华 | High-strength anti-interference variable-frequency cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106158136A (en) | 2016-11-23 |
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| GR01 | Patent grant |