CN203444821U - Cable - Google Patents
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- CN203444821U CN203444821U CN201320451718.3U CN201320451718U CN203444821U CN 203444821 U CN203444821 U CN 203444821U CN 201320451718 U CN201320451718 U CN 201320451718U CN 203444821 U CN203444821 U CN 203444821U
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- Prior art keywords
- differential signal
- pair
- signal conductors
- insulator
- cable
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Abstract
The utility model relates to a cable. The cable comprises at least one pair of differential signal conductors, insulators wrapped on each pair of differential signal conductors, and external coating layers wrapped on the external sides of the insulators; metal plated layers are formed on the surfaces of the insulators; the metal plated layers which can replace aluminum foil and copper foil has a signal shielding function; the shape of the metal plated layers and the shape of the insulators are completely consistent, such that distances between the differential signal conductors and the metal plated layers in each direction are consistent, and therefore, the consistence of characteristic impedance of the differential signal conductors can be effectively guaranteed, and signal attenuation and loss of high-frequency transmission can be decreased, and the quality of high-frequency signal transmission can be improved.
Description
Technical field
The utility model relates to a kind of cable, relates in particular to a kind of cable for transmitting high-frequency signal.
Background technology
Along with the development of electronics technology product is universal, 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 that meet high-frequency signal transmission, operated by rotary motion has some to differential signal line, and each root differential signal line generally includes conductor, the insulator that wraps up successively from inside to outside conductor, signal shielding layer, braid, outer quilt, and screen is aluminium foil or Copper Foil.Conductor in every a pair of differential signal line and the distance of screen are highly difficult to keep consistency in all directions, are difficult to guarantee the characteristic impedance consistency of Difference signal pair, have aggravated signal attenuation and the loss of high-speed transfer.
So, be necessary to design a kind of new cable to solve the problems of the technologies described above.
Utility model content
The purpose of this utility model has been to provide a kind of the have signal attenuation of high-frequency transmission of reduction and the cable of loss.
For realizing aforementioned object, the utility model adopts following technical scheme: a kind of cable, the serving that it comprises at least one pair of differential signal conductors, wraps up the insulator of every a pair of differential signal conductors and be wrapped in insulator outside, described insulator surface is formed with the coat of metal.
As further improvement of the utility model, the insulator of the every a pair of differential signal conductors of described parcel is integral type structure.
As further improvement of the utility model, described cable comprises that the wheat of coated insulation body draws layer and be clamped in the coat of metal and wheat is drawn the earthing conductor between layer.
As further improvement of the utility model, described at least one pair of differential signal conductors and an earthing conductor are arranged in the place, three summits of isosceles triangle.
As further improvement of the utility model, the center of described at least one pair of differential signal conductors and an earthing conductor is arranged on same straight line.
As further improvement of the utility model, 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, the 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 earthing conductor and the first pair of differential signal conductors are positioned at the place, three summits of isosceles triangle, 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, the second insulator exterior is coated with a wheat and draws layer, first, the wheat in second pair of differential signal conductors outside draws layer to be abutted against each other together.
As further improvement of the utility model, described cable also comprises that being coated on successively from inside to outside wheat draws aluminium foil layer, braid and the insulation sheath on layer.
As further improvement of the utility model, described cable comprises at least three pairs of differential signal conductors and the some earthing conductors being centered close on same straight line.
As further improvement of the utility model, described cable is circle, ellipse or pancake.
The insulator surface of the utility model cable 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 in full accord, make distance distance in all directions of the relative coat of metal of differential signal conductors consistent, effectively guarantee the characteristic impedance consistency of differential signal conductors, reduce signal attenuation and the loss of high-frequency transmission, improved the quality of high-frequency signal transmission.
Accompanying drawing explanation
Fig. 1 is the generalized section of the utility model the first execution mode cable.
Fig. 2 is the generalized section of the utility model the second execution mode cable.
Fig. 3 is the generalized section of the utility model the 3rd execution mode cable.
Embodiment
Refer to shown in Fig. 1, the utility model the first execution mode 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, the 3rd pair of differential signal conductors 30, in order to some earthing conductors 40 of ground connection and in order to transmit a power conductor 50 of power supply signal, every a pair of differential signal conductors 10, 20, 30 comprise two differential signal conductors i.e. a positive signal conductor and a negative signal conductor, first, second pair of differential signal conductors 10, 20 for transmitting high-frequency signal, the 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, the first insulator 11 be formed in one or by two first insulators 11, by localized heat, melted after combine, make the position of two conductors in first pair of differential signal conductors 10 relatively fixing, electric property is stable, improves the quality of transmitting high-frequency signal.On the outer surface of the first insulator 11, be 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 in full accord, make distance distance in all directions of first pair of differential signal conductors, the 10 relative coats of metal 12 consistent, effectively guarantee the characteristic impedance consistency of first pair of differential signal conductors 10, signal attenuation and the loss of high-frequency transmission have been reduced, improve the quality of high-frequency signal transmission.The first insulator 11 outsides are coated with a wheat and draw layer 13, one earthing conductor 40 to draw between layer 13 and the coat of metal 12 in this wheat.This earthing conductor 40 and the first pair of differential signal conductors 10 are positioned at the place, three summits of isosceles triangle.
The outer surface of second pair of differential signal conductors 20 be coated with the second insulator 21, the first insulators 21 be formed in one or by two second insulators 21, by localized heat, melted after combine.On the outer surface of the second insulator 21, be 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 in full accord, make distance distance in all directions of second pair of differential signal conductors, the 20 relative coats of metal 22 consistent, effectively guarantee the characteristic impedance consistency of second pair of differential signal conductors 20, reduce signal attenuation and the loss of high-frequency transmission, improved the quality of high-frequency signal transmission.The second insulator 21 outsides are coated with a wheat and draw layer 23, one earthing conductor 40 to draw between layer 23 and the coat of metal 22 in this wheat.This earthing conductor 40 and the second pair of differential signal conductors 20 are positioned at the place, three summits of isosceles triangle.
The 3rd pair of differential signal conductors 30 outer surfaces are coated with the 3rd insulator 31, the 3rd insulator 31 designs for split, be that each root differential signal conductors 30 outside is coated with one deck the 3rd insulator 31, coated this two-layer the 3rd insulator 31 of one built-in insulation skin 32, makes this two-layer the 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 surfaces can be set to integral type.
Wherein earthing conductor 40 is adjacent with power conductor 50, and these earthing conductor 40 outer surfaces are coated with the 4th insulator 41, power conductor 50 outer surfaces be coated with the 5th insulator 51, the four, the 5th insulator after within 41,51 minutes, being arranged again mutually by sticking together.
Described built-in insulation skin 32, wheat draw layer the 13,23, the 4th, the 5th insulator 41,51 mutually by the periphery after sticking together, from inside to outside, be coated with respectively an aluminium foil layer 61, a braid 62 and a serving 63, between aluminium foil layer 61 and braid 62, also clamping has an earthing conductor 40, 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, the utility model the second execution mode cable 200 is pancake, it is first years old, second, the 3rd pair of differential signal conductors 15, 25, 35, earthing conductor 45 is centered close on same straight line with power conductor 55, at least one pair of differential signal conductors 15, 25, 35 both sides are placed with respectively an earthing conductor 45, first, second, the 3rd pair of differential signal conductors 15, 25, 35 outsides are enclosed with respectively integration type insulator 16, 26, 36, insulator 16, 26, 36 outsides are electroplate with the coat of metal 17, 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 the coat of metal 17 is set, 27, 37, this cable 200 can be reached the purpose of this utility model equally.
The utility model shown in please refer to the drawing 3 the 3rd execution mode cable 300 is also set to pancake, compare with the second execution mode, in the coat of metal 170,270,30 and wheat, draw the position of the earthing conductor 450 between layer 180,280,380 different, earthing conductor 45 and the first, second, third pair of differential signal conductors 150,250,350 are positioned at the place, three summits of isosceles triangle, by the coat of metal 170,270,370 is set, this cable 300 can be reached the purpose of this utility model equally.
Although be example object, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize, in the situation that not departing from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (9)
1. a cable, the serving that it comprises at least one pair of differential signal conductors, wraps up the insulator of every a pair of differential signal conductors and be wrapped in insulator outside, 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 the every a pair of differential signal conductors of described parcel is integral type structure.
3. cable according to claim 1, is characterized in that: described cable comprises that the wheat of coated insulation body draws layer and be clamped in the coat of metal and wheat is drawn the earthing conductor between layer.
4. cable according to claim 1, is characterized in that: described at least one pair of differential signal conductors and an earthing conductor are arranged in the place, three summits of isosceles triangle.
5. according to the cable described in claim 1, it is characterized in that: the center of described at least one pair of differential signal conductors and an earthing conductor is arranged on same straight line.
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, the 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 earthing conductor and the first pair of differential signal conductors are positioned at the place, three summits of isosceles triangle, 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, the second insulator exterior is coated with a wheat and draws layer, first, the wheat in second pair of differential signal conductors outside draws layer to be abutted against each other together.
7. cable according to claim 6, is characterized in that: described cable also comprises that being coated on successively from inside to outside wheat draws aluminium foil layer, braid and the insulation sheath on layer.
8. cable according to claim 1, is characterized in that: described cable comprises at least three pairs of differential signal conductors and the some earthing conductors being centered close on same straight line.
9. according to claim 1 to 8 cable described in wherein, it is characterized in that: described cable is circular, ellipse or pancake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451718.3U CN203444821U (en) | 2013-07-26 | 2013-07-26 | Cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451718.3U CN203444821U (en) | 2013-07-26 | 2013-07-26 | Cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444821U true CN203444821U (en) | 2014-02-19 |
Family
ID=50095849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451718.3U Expired - Fee Related CN203444821U (en) | 2013-07-26 | 2013-07-26 | Cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347166A (en) * | 2013-07-26 | 2015-02-11 | 昆山联滔电子有限公司 | Cable |
| US20180108455A1 (en) * | 2016-10-19 | 2018-04-19 | Sumitomo Electric Industries, Ltd. | Parallel pair cable |
-
2013
- 2013-07-26 CN CN201320451718.3U patent/CN203444821U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347166A (en) * | 2013-07-26 | 2015-02-11 | 昆山联滔电子有限公司 | Cable |
| US20180108455A1 (en) * | 2016-10-19 | 2018-04-19 | Sumitomo Electric Industries, Ltd. | Parallel pair cable |
| CN107967960A (en) * | 2016-10-19 | 2018-04-27 | 住友电气工业株式会社 | Parallel rays cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20210726 |