CN106847390B - Data transmission cable - Google Patents
Data transmission cable Download PDFInfo
- Publication number
- CN106847390B CN106847390B CN201610793947.1A CN201610793947A CN106847390B CN 106847390 B CN106847390 B CN 106847390B CN 201610793947 A CN201610793947 A CN 201610793947A CN 106847390 B CN106847390 B CN 106847390B
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- CN
- China
- Prior art keywords
- conducting wire
- data transmission
- transmission cable
- conductor
- clad
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/08—Flat or ribbon cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
Abstract
The present invention provides a kind of data transmission cable, it includes the first conducting wire being disposed adjacent and the second conducting wire, and first conducting wire and the second conducting wire have the conductor for being located at center position and the clad for being coated on conductor periphery respectively；Foregoing conductor diameter is in 28 to 31 American Wire Gauge（AWG）In the range of, wherein, when conductor diameter uses 28AWG, the center spacing of first conducting wire and the second conducting wire is arranged to 0.51mm to 0.75mm；When conductor diameter uses 29AWG, the center spacing of first conducting wire and the second conducting wire is arranged to 0.38mm to 0.75mm, and when conductor diameter uses 30 to 31AWG, the center spacing of first conducting wire and the second conducting wire is arranged to 0.38mm to 0.62mm.
Description
Technical field
The present invention relates to a kind of data transmission cable, more particularly to one kind meets the requirements and the preferable data of high frequency performance pass
Defeated cable.
Background technology
In 3C industries, transmission cable can be carried out as the medium being electrically connected between two electronic devices and stably
Desired signal transmission operation, therefore, transmission cable is generally applicable to various electronic devices.Wherein, with USB, HDMI,
The transmission cable of the interfaces such as DVI, Displayport connection is with transmission rate height, distance is remote, quality is high and is liked by masses,
Usage quantity also increasingly increases.There is a plurality of plain conductor inside such transmission cable, insulating layer is coated outside plain conductor, with
Short circuit phenomenon occurs between isolation metal signal conducting wire.But with the development of computer technology, the electricity such as hard disc of computer and mainboard
The speed of sub- product data transmission is more and more fast, and transmission frequency is also more and more high, in high frequency, ultra-high-frequency data transmission field, control
The differential impedance of differential signal line processed is very important the integrality of high-speed digital signal, general to require to control in 80 Ω extremely
Between 100 Ω, traditional conducting wire sets and can not meet the requirements.
In view of this, it is necessary to existing data transmission cable is improved, to solve the above problems.
The content of the invention
Meet the requirements it is an object of the invention to provide one kind and the preferable data transmission cable of high frequency performance.
To achieve the above object, the present invention provides on a kind of data transmission cable, it includes first be disposed adjacent
Conducting wire and the second conducting wire, first conducting wire and the second conducting wire have the conductor for being located at center position and are coated on conductor respectively
The clad of periphery；Foregoing conductor diameter is in 28 to 31 American Wire Gauge（AWG）In the range of, wherein, use 28AWG in conductor diameter
When, the center spacing of first conducting wire and the second conducting wire is arranged to 0.51mm to 0.75mm；29AWG is used in conductor diameter
When, the center spacing of first conducting wire and the second conducting wire is arranged to 0.38mm to 0.75mm, conductor diameter using 30 to
During 31AWG, the center spacing of first conducting wire and the second conducting wire is arranged to 0.38mm to 0.62mm.
As a further improvement on the present invention, wherein the data transmission cable further includes and the first conducting wire and the second conducting wire
The privates being arranged side by side, adjacent first conducting wire of the privates or the second conducting wire are set, and are also had and be located at center
Conductor and the clad for being coated on conductor periphery, the conductor lines of first conducting wire, the second conducting wire and privates at position
It is identical to advise specification, and the center spacing and the first conducting wire and second of privates and the first adjacent conducting wire or the second conducting wire are led
The center spacing of line is identical.
As a further improvement on the present invention, it is described wherein first conducting wire and the second conducting wire form Difference signal pair
Privates is earth lead.
As a further improvement on the present invention, wherein foregoing first conducting wire and the second conducting wire form Difference signal pair, and the
The clad of one conducting wire and the second conducting wire is coated on the first clad of conductor periphery and is coated on the first clad respectively
Second clad of periphery, the dielectric coefficient of first clad are less than the dielectric coefficient of the second clad.
As a further improvement on the present invention, wherein first clad use dielectric coefficient for 2.1 to 2.4 insulation
Material is formed.
As a further improvement on the present invention, wherein the dielectric coefficient of the second clad is 3.2 to 3.5.
As a further improvement on the present invention, wherein when the conductor diameter uses 28 to 29AWG, first conducting wire
0.585 to 0.685mm is arranged to the center spacing of the second conducting wire, when conductor diameter uses 30 to 31AWG, described first leads
The center spacing of line and the second conducting wire is arranged to 0.45mm to 0.55mm.
As a further improvement on the present invention, wherein when the conductor diameter uses 28 to 29AWG, first conducting wire
0.635mm is arranged to the center spacing of the second conducting wire, when conductor diameter uses 30 to 31AWG, first conducting wire and the
The center spacing of two conducting wires is arranged to 0.5mm.
As a further improvement on the present invention, wherein the data transmission cable further include and meanwhile be coated on the first conducting wire and
External coating on the outside of second conducting wire, the dielectric coefficient of external coating are 0.8-1.2 times of the second clad dielectric coefficient.
As a further improvement on the present invention, wherein the data transmission cable further includes while covers the first conducting wire and
The cover layer of the upper side and lower side of two conducting wires, the dielectric coefficient of the cover layer are the 0.8-1.2 of the second clad dielectric coefficient
Times.
The present invention is set by the center spacing of above-mentioned conductor diameter and corresponding first conducting wire and the second conducting wire, may be such that
When first conducting wire and the second conducting wire are arranged to Difference signal pair, differential impedance between the two is effectively reduced, effectively control
In 80 Ω between 100 Ω, coupling effect strengthens, and ensures the long distance transmission of high-frequency signal.
Brief description of the drawings
Fig. 1 is the schematic perspective view of one preferred embodiment of data transmission cable of the present invention.
Fig. 2 is the cross-sectional view of data transmission cable shown in Fig. 1.
Specific embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
A preferred embodiment of data transmission cable 100 of the present invention is shown also referring to Fig. 1 and Fig. 2.The data
Transmission cable 100 includes at least a conducting wire group 1.The conducting wire group 1 includes the first conducting wire 11 and second side by side and being disposed adjacent
Conducting wire 12.
In the present embodiment, the data transmission cable 100 is further included with the first conducting wire 11 and the second conducting wire 12 side by side
The privates 2 of setting.Adjacent first conducting wire, 11 or second conducting wire 12 of the privates 2 is set.Wherein, first conducting wire
11 and second conducting wire 12 be Difference signal pair, available for transmitting high-frequency signal.The privates 2 is earth lead, be can be used to
Suppress the signal interference of Difference signal pair side.Data transmission cable 100 includes some groups and passes through ground connection in present embodiment
The spaced Difference signal pair of conducting wire 2, and the Difference signal pair is arranged side by side.The earth lead 2 can be right
Two adjacent groups Difference signal pair produces isolation, prevents from interfering with each other.
Please refer to Fig.1 with shown in Fig. 2, first conducting wire 11, the second conducting wire 12 and privates 2 are respectively with being located at
Conductor 13 at heart position and the clad for being coated on the outside of conductor 3.
Wherein, in the present embodiment, the clad of 11 and second conducting wire 12 of the first conducting wire is coated on respectively leads
First clad 14 of the periphery of body 13, the second clad 15 for being coated on the periphery of the first clad 14.In the present invention, described
The dielectric coefficient of one clad 14 is less than the dielectric coefficient of the second clad 15.
Wherein, the first clad 14 uses dielectric coefficient to be formed for 2.1 to 2.4 insulating materials, with provide conductor 13 compared with
Good signal transmission environment, reduces the propagation delay of signal, reduces the crosstalk between signal, ensures that the high speed of signal effectively passes
It is defeated, reduce signal attenuation.
In addition, to be arranged to dielectric coefficient of a relatively high for second clad 15, use in the present invention dielectric coefficient for
3.2 to 3.5 material is made, it is preferred to use the absorbing material of absorbable electromagnetic wave, which is made, inhales ripple layer, thus, it is possible to utilize the suction
Ripple layer 15 absorbs the electromagnetic wave of extraneous radiation, effectively suppresses outside electromagnetic interference, and conductor 13 and the external world are effectively completely cut off, and protects
Demonstrate,prove high frequency, ultra-high frequency signal transmission；In addition, the suction ripple layer 15 also has the performance such as light weight, heatproof, moisture-proof, anticorrosive, into
And can effectively protect is located at the conductor 13 of inner side, extend the service life of data transmission cable 100 of the present invention；Furthermore the suction
Ripple layer 15 can also be made of high-density plastic's material with absorbing property, to efficiently use the pull resistance of this kind of material, enhancing
The mechanical strength of data transmission cable 100.
In addition, in present embodiment, because the privates 2 is arranged to earth lead, so that its clad only be set
For one layer, which, which adopts, is made from an insulative material, with the conductor 13 to earth lead 2 and the first adjacent conducting wire 11 or the second
The conductor 13 of conducting wire 12 is formed and is dielectrically separated from.
Further, the data transmission cable 100 further includes the first conducting wire 11, the second conducting wire to the conducting wire group 1
12 and the earth lead 2 carry out relative positioning and protection serving 3.The serving 3 can be to be coated on conducting wire group 1 at the same time
With the external coating in the outside of earth lead 2, or the upper side and lower side of conducting wire group 1 and earth lead 2 is covered at the same time to be determined
The cover layer of position.The serving 3 uses weatherability preferably and the material of fatigue resistance is made, such as thermoplastic elastomer (TPE) TPE
（Thermoplastic Elastomer）Material is made, preferable to be formed to internal first, second, and third conducting wire 11,12,2
Protection, improve the service life of data transmission cable 100 of the present invention.
The serving 3 uses dielectric coefficient to be made of 0.8 to 1.2 times of material of 15 dielectric coefficient of the second clad,
To ensure that the dielectric coefficient of serving 3 and 15 dielectric coefficient of the second clad adjacent thereto difference are smaller, into without to this
The overall dielectric coefficient of invention data transmission cable 100 has an impact, and ensures high frequency signal transmission.
Further, in the present invention, the outside diameter of the conductor 13 is arranged at 28 to 31 American Wire Gauge（AWG）Scope
It is interior；Wherein, when 13 outside diameter of conductor uses 28AWG, the center spacing of at least described first conducting wire, 11 and second conducting wire 12 is set
For 0.51mm to 0.75mm；When 13 outside diameter of conductor uses 29AWG, the center of at least described first conducting wire, 11 and second conducting wire 12
Spacing is arranged to 0.38mm to 0.75mm, and when conductor diameter uses 30 to 31AWG, at least described first conducting wire 11 and second is led
The center spacing of line 12 is arranged to 0.38mm to 0.62mm.
Set, may be such that by the center spacing of 11 and second conducting wire 12 of above-mentioned 13 outside diameter of conductor and corresponding first conducting wire
Differential impedance between first conducting wire 11 and the second conducting wire 12 is effectively reduced, and is effectively controlled 80 Ω between 100 Ω, is coupled
Effect strengthens, and ensures the long distance transmission of high-frequency signal.
Preferably, in present embodiment, 13 line gauge of conductor of first conducting wire 11, the second conducting wire 12 and privates 2
Specification and adjacent center spacing between the two are disposed as identical.
In addition, further, set with reference to the clad of above-mentioned first conducting wire, 11 and second conducting wire 12 in present embodiment,
To ensure that the first conducting wire 11 and the second conducting wire 12 are when carrying out high frequency signal transmission in the present invention, differential impedance control between the two
System, between 100 Ω, 11 and second conducting wire 12 of the first conducting wire is further set as follows in 85 Ω：By first conducting wire
11 and second conductor 13 of conducting wire 12 when being arranged to 28 to 29AWG, set the first conducting wire 11 and the center spacing of the second conducting wire 12
0.585 to 0.685mm is set to, is preferably 0.635mm；It is arranged to by the conductor 13 of 11 and second conducting wire 12 of the first conducting wire
When 30 to 31AWG, the first conducting wire 11 and the center spacing of the second conducting wire 12 is arranged to 0.45 to 0.55mm, be preferably 0.5mm；
Thus the long distance transmission of high-frequency signal can be further ensured that.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, it can modify to technical scheme
Or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of data transmission cable, it includes the first conducting wire being disposed adjacent and the second conducting wire, first conducting wire and second
Conducting wire has the conductor for being located at center position and the clad for being coated on conductor periphery respectively；It is characterized in that：Foregoing conductor
Outside diameter is in 28 to 31 American Wire Gauge（AWG）In the range of, wherein, when conductor diameter uses 28AWG, first conducting wire and second
The center spacing of conducting wire is arranged to 0.51mm to 0.75mm；When conductor diameter uses 29AWG, first conducting wire and second is led
The center spacing of line is arranged to 0.38mm to 0.75mm, when conductor diameter uses 30 to 31AWG, first conducting wire and second
The center spacing of conducting wire is arranged to 0.38mm to 0.62mm.
2. data transmission cable as claimed in claim 1, it is characterised in that：The data transmission cable is further included leads with first
The privates that line and the second conducting wire are arranged side by side, adjacent first conducting wire of the privates or the second conducting wire are set, and
With the conductor positioned at center position and the clad for being coated on conductor periphery, first conducting wire, the second conducting wire and the 3rd
The conductor line gauge specification of conducting wire is identical, and privates and the first adjacent conducting wire or the center spacing of the second conducting wire and first
Conducting wire is identical with the center spacing of the second conducting wire.
3. data transmission cable as claimed in claim 2, it is characterised in that：First conducting wire and the second conducting wire form difference
Signal pair, the privates are earth lead.
4. data transmission cable as claimed in claim 1 or 2, it is characterised in that：Foregoing first conducting wire and the second conducting wire are formed
Difference signal pair, and the clad of the first conducting wire and the second conducting wire is coated on the first clad and bag of conductor periphery respectively
The second clad of the first clad periphery is overlying on, the dielectric coefficient of first clad is less than the dielectric system of the second clad
Number.
5. data transmission cable as claimed in claim 4, it is characterised in that：First clad use dielectric coefficient for
2.1 to 2.4 insulating materials is formed.
6. data transmission cable as claimed in claim 5, it is characterised in that：The dielectric coefficient of second clad for 3.2 to
3.5。
7. data transmission cable as claimed in claim 6, it is characterised in that：When the conductor diameter uses 28 to 29AWG,
The center spacing of first conducting wire and the second conducting wire is arranged to 0.585 to 0.685mm, and 30 to 31AWG are used in conductor diameter
When, the center spacing of first conducting wire and the second conducting wire is arranged to 0.45mm to 0.55mm.
8. data transmission cable as claimed in claim 7, it is characterised in that：When the conductor diameter uses 28 to 29AWG,
The center spacing of first conducting wire and the second conducting wire is arranged to 0.635mm, described when conductor diameter uses 30 to 31AWG
The center spacing of first conducting wire and the second conducting wire is arranged to 0.5mm.
9. data transmission cable as claimed in claim 6, it is characterised in that：The data transmission cable is further included while coated
External coating on the outside of the first conducting wire and the second conducting wire, the dielectric coefficient of external coating is the second clad dielectric coefficient
0.8-1.2 times.
10. data transmission cable as claimed in claim 6, it is characterised in that：The data transmission cable is further included while hidden
The cover layer of the upper side and lower side of the first conducting wire of lid and the second conducting wire, the dielectric coefficient of the cover layer is the second clad dielectric
0.8-1.2 times of coefficient.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793947.1A CN106847390B (en) | 2016-08-31 | 2016-08-31 | Data transmission cable |
| PCT/CN2016/111245 WO2018040400A1 (en) | 2016-08-31 | 2016-12-21 | Data transmission cable |
| US15/440,214 US10079082B2 (en) | 2015-07-30 | 2017-02-23 | Data transmission cable |
| PCT/CN2017/098142 WO2018040958A1 (en) | 2016-08-31 | 2017-08-18 | Data transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610793947.1A CN106847390B (en) | 2016-08-31 | 2016-08-31 | Data transmission cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106847390A CN106847390A (en) | 2017-06-13 |
| CN106847390B true CN106847390B (en) | 2018-05-15 |
Family
ID=59145591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610793947.1A Active CN106847390B (en) | 2015-07-30 | 2016-08-31 | Data transmission cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106847390B (en) |
| WO (1) | WO2018040400A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040958A1 (en) * | 2016-08-31 | 2018-03-08 | 凡甲电子(苏州)有限公司 | Data transmission cable |
| CN109390082A (en) * | 2017-08-07 | 2019-02-26 | 凡甲电子(苏州)有限公司 | Data transmission cable |
| CN209980820U (en) * | 2018-06-01 | 2020-01-21 | 凡甲电子(苏州)有限公司 | Circuit board |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629178U (en) * | 2010-01-27 | 2010-11-10 | 东莞市虎门金山电线电缆有限公司 | Computer data transmission wire cable |
| CN102201276A (en) * | 2010-03-23 | 2011-09-28 | 日立电线株式会社 | Differential signal cable, cable assembly and multi-pair differential signal cable |
| CN102870170A (en) * | 2010-08-31 | 2013-01-09 | 3M创新有限公司 | Shielded electrical cable in twinaxial configuration |
| CN203931546U (en) * | 2013-04-15 | 2014-11-05 | 日立金属株式会社 | Differential signal transmission cable and multipair differential signal transmission cable |
| CN105405529A (en) * | 2015-07-30 | 2016-03-16 | 凡甲电子(苏州)有限公司 | Data transmission cable |
| CN206097973U (en) * | 2016-08-31 | 2017-04-12 | 凡甲电子(苏州)有限公司 | Data transfer cable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475006A (en) * | 1981-03-16 | 1984-10-02 | Minnesota Mining And Manufacturing Company | Shielded ribbon cable |
| US6222129B1 (en) * | 1993-03-17 | 2001-04-24 | Belden Wire & Cable Company | Twisted pair cable |
| TW200908025A (en) * | 2007-06-27 | 2009-02-16 | Sumitomo Electric Industries | High-speed differential transmission cable |
-
2016
- 2016-08-31 CN CN201610793947.1A patent/CN106847390B/en active Active
- 2016-12-21 WO PCT/CN2016/111245 patent/WO2018040400A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629178U (en) * | 2010-01-27 | 2010-11-10 | 东莞市虎门金山电线电缆有限公司 | Computer data transmission wire cable |
| CN102201276A (en) * | 2010-03-23 | 2011-09-28 | 日立电线株式会社 | Differential signal cable, cable assembly and multi-pair differential signal cable |
| CN102870170A (en) * | 2010-08-31 | 2013-01-09 | 3M创新有限公司 | Shielded electrical cable in twinaxial configuration |
| CN203931546U (en) * | 2013-04-15 | 2014-11-05 | 日立金属株式会社 | Differential signal transmission cable and multipair differential signal transmission cable |
| CN105405529A (en) * | 2015-07-30 | 2016-03-16 | 凡甲电子(苏州)有限公司 | Data transmission cable |
| CN206097973U (en) * | 2016-08-31 | 2017-04-12 | 凡甲电子(苏州)有限公司 | Data transfer cable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018040400A1 (en) | 2018-03-08 |
| CN106847390A (en) | 2017-06-13 |
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