CN104347166A - Cable - Google Patents
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- CN104347166A CN104347166A CN201310319528.0A CN201310319528A CN104347166A CN 104347166 A CN104347166 A CN 104347166A CN 201310319528 A CN201310319528 A CN 201310319528A CN 104347166 A CN104347166 A CN 104347166A
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- insulator
- differential signal
- signal conductors
- cable
- pair
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Abstract
The invention relates to a cable which comprises at least one pair of differential signal conductors, an insulator which wraps each pair of differential signal conductors and an outer layer which wraps the insulator. A metal plating layer is formed at the surface of the insulator. Aluminum foil and copper foil can be replaced by the metal plating layer which is provided with a signal shielding function. The shape of the metal shielding layer is completely consistent with that of the insulator such that the distances from the differential signal conductors to the metal plating layer are consistent in each direction, the characteristic impedance consistency of the differential signal conductors is effectively ensured, the signal attenuation and loss of high frequency transmission are reduced, and the quality of high frequency signal transmission is improved.
Description
Technical field
The present invention relates to a kind of cable, particularly relate to a kind of cable for transmitting high-frequency signal.
Background technology
Along with the development of electronics technology product is popularized, cable, as a kind of instrument of signal transmission, is widely used in the connection of the electronic equipments such as consumer electronics, household electrical appliances, instrument and meter.In prior art, cable is the needs meeting high-frequency signal transmission, generally be provided with some to differential signal line, each root differential signal line generally includes conductor, the insulator wrapping up conductor from inside to outside successively, signal shielding layer, braid, outer quilt, and screen is aluminium foil or Copper Foil.Conductor in every a pair differential signal line and the distance of screen are highly difficult to keep consistency in all directions, are difficult to the characteristic impedance consistency ensureing Difference signal pair, exacerbate signal attenuation and the loss of high-speed transfer.
So, be necessary that a kind of new cable of design is to solve the problems of the technologies described above.
Summary of the invention
The object of the present invention is to provide a kind of have reduce the signal attenuation of high-frequency transmission and the cable of loss.
For realizing aforementioned object, the present invention adopts following technical scheme: a kind of cable, it serving comprising at least one pair of differential signal conductors, wrap up the insulator of every a pair differential signal conductors and be wrapped in outside insulator, described insulator surface is formed with the coat of metal.
The insulator surface of cable of the present invention is formed with the coat of metal, the described coat of metal can replace aluminium foil, Copper Foil, there is signal shielding function, the thickness of the coat of metal can regulate according to the power of signal shielding, the shape of the coat of metal and insulator is completely the same, make distance distance in all directions of differential signal conductors opposing metallic coating consistent, the characteristic impedance consistency of effective guarantee differential signal conductors, reduce signal attenuation and the loss of high-frequency transmission, improve the quality of high-frequency signal transmission.
Accompanying drawing explanation
Fig. 1 is the generalized section of first embodiment of the invention cable.
Fig. 2 is the generalized section of second embodiment of the invention cable.
Fig. 3 is the generalized section of third embodiment of the invention cable.
Embodiment
Refer to shown in Fig. 1, first embodiment of the invention cable 100 is in order to USB3.0 host-host protocol, it comprises first pair of differential signal conductors 10, second pair of differential signal conductors 20, 3rd pair of differential signal conductors 30, in order to some earthing conductors 40 of ground connection and the power conductor 50 in order to transmit power supply signal, every a pair differential signal conductors 10, 20, 30 comprise a two differential signal conductors i.e. positive signal conductor and a negative signal conductor, first, second pair of differential signal conductors 10, 20 for transmitting high-frequency signal, 3rd pair of differential signal conductors 30 is for transmitting low frequency signal.
The outer surface of first pair of differential signal conductors 10 is coated with the first insulator 11, first insulator 11 is formed in one or combines after being melted by localized heat by two first insulators 11, make the position of two conductors in first pair of differential signal conductors 10 relatively fixing, electric property is stablized, and improves the quality of transmitting high-frequency signal.The outer surface of the first insulator 11 is electroplate with layer of metal coating 12, this coat of metal 12 can replace aluminium foil, Copper Foil, there is signal shielding function, the thickness of the coat of metal 12 and density can regulate according to the power of signal shielding, the shape of the coat of metal 12 and the first insulator is completely the same, make distance distance in all directions of first pair of differential signal conductors 10 opposing metallic coating 12 consistent, the characteristic impedance consistency of effective guarantee first pair of differential signal conductors 10, reduce signal attenuation and the loss of high-frequency transmission, improve the quality of high-frequency signal transmission.First insulator 11 outside is coated with a wheat and draws layer 13, and an earthing conductor 40 draws between layer 13 and the coat of metal 12 in this wheat.This earthing conductor 40 and the first differential signal conductors 10 are positioned at three summits place of isosceles triangle.
The outer surface of second pair of differential signal conductors 20 is coated with the second insulator 21, first insulator 21 and is formed in one or combines after being melted by localized heat by two second insulators 21.The outer surface of the second insulator 21 is electroplate with layer of metal coating 22, this coat of metal 22 can replace aluminium foil, Copper Foil, there is signal shielding function, the thickness of the coat of metal 22 can regulate according to the power of signal shielding, the shape of the coat of metal 22 and the first insulator is completely the same, make distance distance in all directions of second pair of differential signal conductors 20 opposing metallic coating 22 consistent, the characteristic impedance consistency of effective guarantee second pair of differential signal conductors 20, reduce signal attenuation and the loss of high-frequency transmission, improve the quality of high-frequency signal transmission.Second insulator 21 outside is coated with a wheat and draws layer 23, and an earthing conductor 40 draws between layer 23 and the coat of metal 22 in this wheat.This earthing conductor 40 and the second differential signal conductors 20 are positioned at three summits place of isosceles triangle.
3rd pair of differential signal conductors 30 outer surface is coated with the 3rd insulator 31,3rd insulator 31 designs for split, namely one deck the 3rd insulator 31 is coated with outside each root differential signal conductors 30, one built-in insulation skin 32 this two-layer 3rd insulator 31 coated, makes this two-layer 3rd insulator 31 closely by sticking together.Certainly in other embodiments, two the 3rd insulators 31 of the 3rd pair of differential signal conductors 30 outer surface can be set to integral type.
Wherein earthing conductor 40 is adjacent with power conductor 50, and this earthing conductor 40 outer surface is coated with the 4th insulator 41, power conductor 50 outer surface be coated with the 5th insulator the 51, four, the 5th insulator 41,51 be provided separately after again by sticking together.
Described built-in insulation skin 32, wheat draw layer the 13,23, the 4th, the 5th insulator 41,51 by the periphery after sticking together, from inside to outside, be coated with aluminium foil layer 61, braid 62 and a serving 63 respectively, an earthing conductor 40 is also clamped with between aluminium foil layer 61 and braid 62, this earthing conductor 40 is positioned at the side of power conductor 50, the cross section of cable 100 is circular, can certainly be set to ellipse.
Shown in please refer to the drawing 2, second embodiment of the invention cable 200 is pancake, it is first years old, second, 3rd pair of differential signal conductors 15, 25, 35, earthing conductor 45 is centrally located on same straight line with power conductor 55, at least one pair of differential signal conductors 15, 25, the both sides of 35 are placed with an earthing conductor 45 respectively, first, second, 3rd pair of differential signal conductors 15, 25, integration type insulator 16 is enclosed with respectively outside 35, 26, 36, insulator 16, 26, the coat of metal 17 is electroplate with outside 36, 27, 37, the coat of metal 17, 27, 37 outsides are coated with a wheat and draw layer 18, 28, 38, earthing conductor 45 is clamped in the coat of metal 17, 27, 37 draw layer 18 with wheat, 28, between 38, by arranging the coat of metal 17, 27, 37, this cable 200 can reach object of the present invention equally.
Third embodiment of the invention cable 300 shown in please refer to the drawing 3 is also set to pancake, compared with the second execution mode, draw the position of the earthing conductor 450 between layer 180,280,380 different in the coat of metal 170,270,30 and wheat, earthing conductor 45 and the first, second, third pair of differential signal conductors 150,250,350 are positioned at three summits place of isosceles triangle, by arranging the coat of metal 170,270,370, this cable 300 can reach object of the present invention equally.
Although be example object, disclose the preferred embodiment of the present invention, but those of ordinary skill in the art will recognize, when not departing from scope and spirit of the present invention disclosed in appending claims, various improvement, increase and replacement are possible.
Claims (9)
1. a cable, it serving comprising at least one pair of differential signal conductors, wrap up the insulator of every a pair differential signal conductors and be wrapped in outside insulator, is characterized in that: described insulator surface is formed with the coat of metal.
2. cable according to claim 1, is characterized in that: the insulator of every a pair differential signal conductors of described parcel is integral type structure.
3. cable according to claim 1, is characterized in that: the wheat that described cable comprises coated insulation body is drawn layer and is clamped in the coat of metal and wheat and draws an earthing conductor between layer.
4. cable according to claim 1, is characterized in that: at least one pair of differential signal conductors described and an earthing conductor are arranged in three summits place of isosceles triangle.
5. according to the cable described in claim 1, it is characterized in that: arrange on the same line in the center of at least one pair of differential signal conductors described and an earthing conductor.
6. cable according to claim 1, it is characterized in that: described cable comprises first, second pair of differential signal conductors, the outer surface of first pair of differential signal conductors is coated with the first insulator, the outer surface of the first insulator is provided with layer of metal coating, first insulator exterior is coated with a wheat and draws layer, one earthing conductor draws between layer and the coat of metal in this wheat, this ground connection leads three summits place being positioned at isosceles triangle with the first differential signal conductors, the outer surface of second pair of differential signal conductors is coated with the second insulator, the outer surface of the second insulator is also provided with layer of metal coating, second insulator exterior is coated with a wheat and draws layer, first, wheat outside second differential signal conductors draws layer to be abutted against each other together.
7. cable according to claim 6, is characterized in that: described cable also comprises and is coated on wheat from inside to outside successively and draws aluminium foil layer, braid and insulation sheath on layer.
8. cable according to claim 1, is characterized in that: described cable comprises and is centrally located at least three pairs of differential signal conductors on same straight line and some earthing conductors.
9. according to the cable of claim 1 to 8 wherein described in one, it is characterized in that: described cable is circular, oval or pancake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319528.0A CN104347166A (en) | 2013-07-26 | 2013-07-26 | Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319528.0A CN104347166A (en) | 2013-07-26 | 2013-07-26 | Cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104347166A true CN104347166A (en) | 2015-02-11 |
Family
ID=52502599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310319528.0A Pending CN104347166A (en) | 2013-07-26 | 2013-07-26 | Cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885505A (en) * | 2019-11-30 | 2021-06-01 | 英业达科技有限公司 | Universal serial bus cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010788A (en) * | 1997-12-16 | 2000-01-04 | Tensolite Company | High speed data transmission cable and method of forming same |
| JP3669562B2 (en) * | 1999-09-22 | 2005-07-06 | 東京特殊電線株式会社 | Differential signal transmission cable with excellent terminal processability |
| TWM340531U (en) * | 2008-01-21 | 2008-09-11 | Hon Hai Prec Ind Co Ltd | Cale |
| CN101447249A (en) * | 2008-12-19 | 2009-06-03 | 常熟泓淋电线电缆有限公司 | Cable screening wire |
| CN201378444Y (en) * | 2008-12-16 | 2010-01-06 | 领亚电子科技股份有限公司 | Displayport connecting cable |
| CN201717349U (en) * | 2010-06-30 | 2011-01-19 | 成都普天电缆股份有限公司 | Coaxial cable for transmitting high frequency signals |
| CN203444821U (en) * | 2013-07-26 | 2014-02-19 | 昆山联滔电子有限公司 | Cable |
-
2013
- 2013-07-26 CN CN201310319528.0A patent/CN104347166A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6010788A (en) * | 1997-12-16 | 2000-01-04 | Tensolite Company | High speed data transmission cable and method of forming same |
| JP3669562B2 (en) * | 1999-09-22 | 2005-07-06 | 東京特殊電線株式会社 | Differential signal transmission cable with excellent terminal processability |
| TWM340531U (en) * | 2008-01-21 | 2008-09-11 | Hon Hai Prec Ind Co Ltd | Cale |
| CN201378444Y (en) * | 2008-12-16 | 2010-01-06 | 领亚电子科技股份有限公司 | Displayport connecting cable |
| CN101447249A (en) * | 2008-12-19 | 2009-06-03 | 常熟泓淋电线电缆有限公司 | Cable screening wire |
| CN201717349U (en) * | 2010-06-30 | 2011-01-19 | 成都普天电缆股份有限公司 | Coaxial cable for transmitting high frequency signals |
| CN203444821U (en) * | 2013-07-26 | 2014-02-19 | 昆山联滔电子有限公司 | Cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885505A (en) * | 2019-11-30 | 2021-06-01 | 英业达科技有限公司 | Universal serial bus cable |
| CN112885505B (en) * | 2019-11-30 | 2022-05-27 | 英业达科技有限公司 | Universal serial bus cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |