CN2881897Y - DVI/HDMI high frequency data transmission cable - Google Patents
DVI/HDMI high frequency data transmission cable Download PDFInfo
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- CN2881897Y CN2881897Y CN 200520121224 CN200520121224U CN2881897Y CN 2881897 Y CN2881897 Y CN 2881897Y CN 200520121224 CN200520121224 CN 200520121224 CN 200520121224 U CN200520121224 U CN 200520121224U CN 2881897 Y CN2881897 Y CN 2881897Y
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Abstract
A DVI/HDMI high frequency data transmission cable comprises a data transmission cable, a shielding layer and a protection jacket. The shield layer wraps the data transmission cable vertically while the protection jacket wraps the shielding layer vertically. The data transmission cable comprises at least a pair of differential data signal wires. Each pair of the differential data signal wires is equipped a single-side signal wire metal foil and a naked signal grounding wire. The metal foil of the single-side wire, with its conducting side inward and insulation side outward, wraps the corresponding pair of differential data signal wire and naked signal grounding wire vertically. The naked signal grounding wire closely contacts the conducting side of the metal foil of the single-side wire. The shielding layer is composed of a transmission cable metal foil which wraps the data transmission cable vertically and a thread type naked transmission grounding wire which contacts the conducting side of the metal foil closely. The utility model provides a DVI/HDMI high frequency data transmission cable of low cost, small size, light weight, effective shielding and robust anti-interference performance.
Description
Technical field
The utility model relates to a kind of data cable, relates in particular to a kind of DVI/HDMI high-frequency data transmission cable.
Background technology
Existing DVI/HDMI high-frequency data transmission cable, contain data line, screen and oversheath, screen vertically is enclosed in the data line periphery, oversheath vertically is wrapped in the screen periphery, every pair of data signal line of data line is shielding not, between a pair of data signal line and another are to data signal line, be easy to cause mutual cross-talk, screen adopts the copper wire mesh grid more, with interference that reaches the shielding external electromagnetic field and the effect that prevents data line signal leakage, but copper wire mesh grid shortcoming is: 1. cost an arm and a leg.2. weaving or twining in the process wiry,, data-signal line insulating layer diameter, concentricity, roundness etc. are being changed, causing the electrical property variation because factors such as powerful extruding cause the dielectric distortion of inner data signal line.3. when high frequency, along with frequency increases, high-frequency energy increases from the scattering effect in copper wire mesh grid slit, reduced the shielding action of copper wire mesh grid to high-frequency signal, and, if use stub cable below 2 meters, under high frequency situations, by copper wire mesh grid ground wire, its far-end crosstalk, data signals transmitted is difficult for passing through.
Utility model patent 02262402.3 discloses a kind of data cable that replaces copper wire mesh grid screen with aluminum foil shielded paper, raising is to the shield effectiveness of high-frequency signal, reduce cost, but because the not shielding of every pair of data signal line of data line causes mutual cross-talk between the holding wire, and, because all wrap insulate layers in data line periphery, aluminum foil shielded paper, cause the weight of data cable to increase, volume increases, and cost increases.
Utility model patent 01266687.4 discloses a kind of every pair of data signal line parcel aluminum foil shielded paper to data line, and replace the data cable of copper wire mesh grid screen with aluminum foil shielded paper, but because every pair of data signal line only wraps up aluminum foil shielded paper, and ground wire is not set, so, shield effectiveness to every pair of data signal line is unsatisfactory, simultaneously, all same wrap insulate layers in the aluminum foil shielded paper of data line periphery, screen, cause the weight of data cable to increase, volume increases, and cost increases.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art exactly, provides that a kind of cost is low, volume is little, in light weight, shield effectiveness good, antijamming capability is strong DVI/HDMI high-frequency data transmission cable.
For achieving the above object, a kind of DVI/HDMI high-frequency data of the utility model transmission cable, comprise data line, screen and oversheath, screen vertically is enclosed in the data line periphery, oversheath vertically is wrapped in the screen periphery, described data line comprises at least one pair of differential data signals line, described at least one pair of differential data signals line, wherein each is to being provided with single face holding wire metal forming and naked signal ground, the conducting surface of this single face holding wire metal forming is inside, insulating surfaces is outside, vertically be enclosed in the periphery of corresponding a pair of differential data signals line and naked signal ground, naked signal ground is close to the conducting surface of single face holding wire metal forming, and described screen is made of transmission line metal forming that vertically is enclosed in the data line periphery and the naked transmission ground wire of linear of being close to this metal forming conducting surface.
The described transmission line metal forming that vertically is enclosed in the data line periphery can be provided with two-layer or two-layer more than, naked transmission ground wire is placed in one, and is close to the wherein conducting surface of transmission line metal forming.
Described two-layer or two-layer above transmission line metal forming, the conducting surface of its transmission line metal forming can be provided with in twos face-to-face, and naked transmission ground wire places between this transmission line metal forming that is provided with face-to-face in twos, is close to the conducting surface of adjacent two transmission line metal formings.
Described transmission line metal forming can adopt aluminium foil.The naked transmission ground wire of described linear can be at least one naked metal wire, also can be the naked metal wire of at least one bundle, and naked metal wire can adopt bare copper wire.
Described at least one pair of differential data signals line can adopt four pairs or seven pairs of differential data signals lines.
Described single face holding wire metal forming can adopt the single face aluminium foil, and described naked signal ground can adopt at least one naked metal wire, also can be the naked metal wire of at least one bundle, and naked metal wire can adopt bare copper wire.
Because screen of the present utility model is made of transmission line metal forming that vertically is enclosed in the data line periphery and the naked transmission ground wire of linear of being close to this metal forming conducting surface, the screen that has replaced the copper wire mesh grid composition of traditional costliness, so the advantage of the utility model screen is: 1. reduce cost; 2. the utility model in process of production, can guarantee the damage minimum of every data signal line of data line, guarantee that transmission line realizes best unit for electrical property parameters, especially ultra-long, parameters such as its signal attenuation, delay inequality are compared with prior art copper wire woven mesh structure, have a more substantial increase, cable is easy to accomplish long; 3. metal forming does not have the slit, and is effective to radioshielding; Because all in the transmission line metal forming, the data line periphery does not have the wrap insulate layer, so volume is little, in light weight again; Owing at each the differential data signals line is provided with single face holding wire metal forming and naked signal ground, improves effectively to each shield effectiveness to the differential data signals line; Again since the impedance of the naked transmission ground wire of linear of the present utility model much larger than the impedance of traditional copper wire mesh grid, so, for the stub cable below 2 meters, under high frequency situations, the naked transmission ground of linear of the present utility model line attenuation from the far-end crosstalk of ground wire, the data line data signals transmitted is passed through smoothly.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram;
Embodiment
As shown in Figure 1, be the utility model example structure schematic diagram, the utility model embodiment comprises data line, screen and oversheath 7, and screen vertically is enclosed in the data line periphery, and oversheath 7 vertically is wrapped in the screen periphery.
Data line comprises four pairs of differential data signals lines 1 and supporting with it electronics line 3, wherein each is provided with single face holding wire aluminium foil 2 and a naked signal ground 8 to differential data signals line 1, naked signal ground 8 adopts bare copper wire, the conducting surface of single face holding wire aluminium foil 2 is inside, insulating surfaces is outside, vertically be enclosed in the periphery of a corresponding a pair of differential data signals line 1 and a naked signal ground 8, naked signal ground 8 is close to the conducting surface of single face holding wire aluminium foil 2, to shield every pair of interference between the differential data signals line 1.
Screen is made of two-layer transmission line aluminium foil 4,5 and a branch of naked transmission ground wire 6, two-layer transmission line aluminium foil 4,5 vertically is enclosed in the data line periphery, the conducting surface of this two-layer transmission line aluminium foil 4,5 is provided with in twos face-to-face, a branch of naked transmission ground wire 6 adopts a branch of bare copper wire, place between this transmission line aluminium foil 4,5 that is provided with face-to-face in twos, be close to the conducting surface of adjacent two transmission line aluminium foils 4,5.
The transmission line aluminium foil of the utility model screen can also be set to individual layer, and shortcoming is that the transmission line aluminium foil separates with the naked transmission ground wire of linear easily, thereby, the shield effectiveness variation of Gan Raoing to external world.
The transmission line aluminium foil of the utility model screen be provided with two-layer or two-layer more than, the naked transmission ground clamp of a branch of or multiwire line strip combines closely the naked transmission ground wire of transmission line aluminium foil and linear between the transmission line aluminium foil, is not easy to separate.
Claims (10)
1, a kind of DVI/HDMI high-frequency data transmission cable, comprise data line, screen and oversheath (7), screen vertically is enclosed in the data line periphery, oversheath (7) vertically is wrapped in the screen periphery, described data line comprises at least one pair of differential data signals line (1), it is characterized in that: described at least one pair of differential data signals line (1), wherein each is to being provided with single face holding wire metal forming (2) and naked signal ground (8), the conducting surface of this single face holding wire metal forming (2) is inside, insulating surfaces is outside, vertically be enclosed in the periphery of corresponding a pair of differential data signals line (1) and naked signal ground (8), naked signal ground (8) is close to the conducting surface of single face holding wire metal forming (2), and described screen is by the transmission line metal forming (4 that vertically is enclosed in the data line periphery, 5) and the naked transmission ground wire of linear (6) of being close to this metal forming conducting surface constitute.
2, according to the described high-frequency data transmission cable of claim 1, it is characterized in that: the described transmission line metal forming (4,5) that vertically is enclosed in the data line periphery be provided with two-layer or two-layer more than, naked transmission ground wire (6) is placed in one, and is close to the wherein conducting surface of transmission line metal forming.
3, high-frequency data transmission cable according to claim 2, it is characterized in that: described two-layer or two-layer above transmission line metal forming (4,5), the conducting surface of its transmission line metal forming is provided with in twos face-to-face, naked transmission ground wire (6) places between this transmission line metal forming (4,5) that is provided with face-to-face in twos, is close to the conducting surface of adjacent two transmission line metal formings (4,5).
4, according to each described high-frequency data transmission cable in the claim 1 to 3, it is characterized in that: described transmission line metal forming (4,5) adopts aluminium foil.
5, according to each described high-frequency data transmission cable in the claim 1 to 3, it is characterized in that: the naked transmission ground wire of described linear (6) is at least one naked metal wire or a branch of at least naked metal wire.
6, high-frequency data transmission cable according to claim 5 is characterized in that: described naked metal wire adopts bare copper wire.
7, high-frequency data transmission cable according to claim 1 is characterized in that: described at least one pair of differential data signals line (1) adopts four pairs or seven pairs of differential data signals lines.
8, according to the described high-frequency data transmission cable of claim 1, it is characterized in that: described single face holding wire metal forming (2) adopts the single face aluminium foil.
9, high-frequency data transmission cable according to claim 1 is characterized in that: described naked signal ground (8) adopts at least one naked metal wire or a branch of at least naked metal wire.
10, high-frequency data transmission cable according to claim 9 is characterized in that: described naked metal wire adopts bare copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121224 CN2881897Y (en) | 2005-12-31 | 2005-12-31 | DVI/HDMI high frequency data transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121224 CN2881897Y (en) | 2005-12-31 | 2005-12-31 | DVI/HDMI high frequency data transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881897Y true CN2881897Y (en) | 2007-03-21 |
Family
ID=37881738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121224 Expired - Fee Related CN2881897Y (en) | 2005-12-31 | 2005-12-31 | DVI/HDMI high frequency data transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881897Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538111A (en) * | 2014-12-30 | 2015-04-22 | 东莞市晟钫实业有限公司 | Two-body HDMI2.0 data line |
| CN104751991A (en) * | 2015-03-30 | 2015-07-01 | 嘉兴奥亿普数据电缆有限公司 | Cable and production method thereof |
| CN105529108A (en) * | 2016-01-27 | 2016-04-27 | 北京小鸟看看科技有限公司 | MHL (mobile high-definition link) cable and virtual reality equipment |
| CN106785758A (en) * | 2017-01-22 | 2017-05-31 | 惠州市升华科技有限公司 | POS data splitting line electrostatic prevention structure and antistatic process method |
| CN107134314A (en) * | 2017-03-22 | 2017-09-05 | 东莞讯滔电子有限公司 | Data wire |
| CN108091437A (en) * | 2018-01-23 | 2018-05-29 | 苏州科宝光电科技有限公司 | Intelligent automobile control system high-frequency data cable |
| US9991023B2 (en) | 2013-01-29 | 2018-06-05 | Creganna Unlimited Company | Interconnect cable having insulated wires with a conductive coating |
| US10037834B2 (en) | 2013-01-29 | 2018-07-31 | Creganna Unlimited Company | Cable having a sparse shield |
| CN112908525A (en) * | 2021-02-24 | 2021-06-04 | 江西博硕电子有限公司 | Data transmission line structure convenient to assemble, placement method of ground wire and application |
| CN113067212A (en) * | 2021-03-30 | 2021-07-02 | 维沃移动通信有限公司 | Data line and electronic equipment |
-
2005
- 2005-12-31 CN CN 200520121224 patent/CN2881897Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9991023B2 (en) | 2013-01-29 | 2018-06-05 | Creganna Unlimited Company | Interconnect cable having insulated wires with a conductive coating |
| US10037834B2 (en) | 2013-01-29 | 2018-07-31 | Creganna Unlimited Company | Cable having a sparse shield |
| CN104538111A (en) * | 2014-12-30 | 2015-04-22 | 东莞市晟钫实业有限公司 | Two-body HDMI2.0 data line |
| CN104751991A (en) * | 2015-03-30 | 2015-07-01 | 嘉兴奥亿普数据电缆有限公司 | Cable and production method thereof |
| CN104751991B (en) * | 2015-03-30 | 2017-10-24 | 嘉兴奥亿普数据电缆有限公司 | A kind of cable and its production method |
| CN105529108A (en) * | 2016-01-27 | 2016-04-27 | 北京小鸟看看科技有限公司 | MHL (mobile high-definition link) cable and virtual reality equipment |
| CN106785758A (en) * | 2017-01-22 | 2017-05-31 | 惠州市升华科技有限公司 | POS data splitting line electrostatic prevention structure and antistatic process method |
| CN106785758B (en) * | 2017-01-22 | 2023-09-08 | 惠州市升华科技有限公司 | POS machine combination data line antistatic structure and antistatic treatment method |
| CN107134314A (en) * | 2017-03-22 | 2017-09-05 | 东莞讯滔电子有限公司 | Data wire |
| CN108091437A (en) * | 2018-01-23 | 2018-05-29 | 苏州科宝光电科技有限公司 | Intelligent automobile control system high-frequency data cable |
| CN112908525A (en) * | 2021-02-24 | 2021-06-04 | 江西博硕电子有限公司 | Data transmission line structure convenient to assemble, placement method of ground wire and application |
| CN113067212A (en) * | 2021-03-30 | 2021-07-02 | 维沃移动通信有限公司 | Data line and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20111231 |