CN201438391U - Improved construction of HF audio and video digital cable - Google Patents
Improved construction of HF audio and video digital cable Download PDFInfo
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- CN201438391U CN201438391U CN2009200094840U CN200920009484U CN201438391U CN 201438391 U CN201438391 U CN 201438391U CN 2009200094840 U CN2009200094840 U CN 2009200094840U CN 200920009484 U CN200920009484 U CN 200920009484U CN 201438391 U CN201438391 U CN 201438391U
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Abstract
The utility model provides an improved construction of an HF (high frequency) audio and video digital cable, particularly to a HF audio and video digital cable, of which the HF signal wire can be coated with a shielding layer. Core wires provided with a plurality of parallel arrays are arranged inside the cable, and coated with insulating layers respectively; the cable is provided with a plurality of LF (lower frequency) signal wires and a plurality of HF signal wires which are arranged in parallel; ground wires are arranged on the sides of the LF signal wires far away from the plurality of HF signal wires; the core wires with a plurality of parallel arrays are coated with protection layers; and the insulating layers of the two adjacent HF signal transmission wires outside the ground wires of the HF signal wires are coated with shielding layers respectively. Therefore, the interference of outside electromagnetic waves and electronic noises can be isolated through the shielding layers to achieve the purpose of more stable audio and video signal transmission of the HF audio and video digital cable.
Description
Technical field
The utility model relates to a kind of improvement structure of audio-visual digital cable, the improvement structure of the audio-visual digital cable of particularly a kind of high frequency.
Background technology
The application of audio ﹠ video is more and more wide in recent years, more and more progressive, and video and audio CD disc, the digital multifunctional laser disc, high definition is analysed number of degrees word TV, audio-visual phone and video conference etc., all get involved among our living environment, and under the leading of new science and technology trend, the information that most of audio-visual video all adopts the mode of total digitalization to come the processed voice image, and application and demand along with different field, have different standard specifications, standard is worked out again and again, revision and renewal, also in order to provide more high-quality, the audio-visual video effect of high-quality more, providing must be more perfect on transmission (signal the is not compressed) speed of digital signal, fast; And in present digital visual interface standard specification, as HDMI (High Definition Multimedia Interface) HDMI, specification interfaces such as digital visual interface DVI and display interface DisplayPort, transmit with digitlization by these interfaces, come the shown picture quality of strengthening electronic equipment, and described interface is for can electrically be plugged in adapter, set-top box, DVD player, PC, holder for TV playing, equipment such as comprehensive enlarger and digital sound, has the transmission rate height, distance, the advantage that quality is high, like and be subjected to masses gradually, the quantity of using also increases day by day, the image quality of digital high-speed transmission can be provided, better video effect is arranged.
And DisplayPort, DVI and the employed cable of HDMI connector, it mostly is the cable structure of round or flat type, and have a plurality of high-frequency signal lines, a plurality of low frequency signal line in cable inside, and when carrying out the signal transmission, be easy to generate signal phase mutual interference each other, the quality rather unstable when causing the signal transmission, and can form interference to peripheral associated electrical part, when using, reality still has many disappearances, as:
(1) present employed cable though inside is equipped with earth connection, can only be done ground connection with the noise in the signals transmission, then can't filtering for the interference of other electromagnetic wave, electronic signal.
(2) holding wire of cable inside, no matter be high-frequency signal line, low frequency signal line, all at the external packets insulating layer coating of a plurality of metal core wire, yet the shield effectiveness of insulating barrier is not good, can't effectively block interference signals, makes heart yearn be subjected to interference of noise easily.
Therefore, how to solve and commonly use the high-frequency signal line when transmission signals, suffered signal each other disturbs, the problem of external noise Electromagnetic Interference, is the relevant manufacturer that is engaged in the industry and desires most ardently the direction that research improves.
The creator is because above-mentioned problem and disappearance, be to collect related data, via assessing in many ways and considering, and to engage in the many years of experience of the industry accumulation, via constantly studying and revising, the beginning is designed the structurally improved utility model patent that this kind can have the audio-visual cable of high-frequency digital of good shielding action.
Summary of the invention
Main purpose of the present utility model is, solves existing high-frequency signal line and be subjected to signal interference each other, the technical problem of external noise Electromagnetic Interference when transmission signals.
For achieving the above object, the utility model provides the improvement structure of the audio-visual digital cable of a kind of high frequency, this cable is inner for being provided with the heart yearn of a plurality of parallel array formulas, for parallel is respectively shown a plurality of low frequency signal lines and a plurality of high-frequency signal line, and away from the low frequency signal line of a plurality of high-frequency signal lines in addition side for being provided with earth connection, again with the insulating barrier outside of two adjacent high-frequency signal transmission wires beyond the earth connection in a plurality of high-frequency signal lines, be coated with screen respectively, can pass through screen isolating exterior electromagnetic wave, the interference of electronic noise is to reach the more purpose of stable transfer video-audio signal of the audio-visual digital cable of high frequency.
The beneficial effects of the utility model are, during a plurality of high-frequency signal line transmission signals, not disturbed by electromagnetic wave or electronic noise, and transmission signals that can be stable makes cable have the stable transfer signal and shielding, jamming-proof advantage are arranged.
Description of drawings
Fig. 1 is a stereo appearance figure of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is the three-dimensional exploded view of the utility model preferred embodiment;
Fig. 4 is the three-dimensional exploded view of the utility model preferred embodiment bottom surface;
Fig. 5 is a simple and easy pin of the present utility model position schematic diagram;
Fig. 6 is the stereo appearance figure of the utility model preferred embodiment;
Fig. 7 is the stereo appearance figure of the utility model user mode.
Description of reference numerals:
The 1-cable; The 11-heart yearn; The 13-separator; The 12-insulating barrier; The 14-protective layer; 2-high-frequency signal line; 21-high frequency earthing line; The 23-high-frequency signal transmission wire; The 22-high-frequency signal transmission wire; The 24-screen; 3-low frequency signal line; The 4-earth connection; The 5-electric connector; The 51-wiring board; 5121-second contact; The 511-first surface; The 52-conversion terminal; The 5111-metallic contact; The 53-docking section; 5112-first contact; The 530-spliced eye; The 512-second surface.
Embodiment
Now illustrate in detail with regard to the feature and the function of the utility model preferred embodiment in conjunction with the accompanying drawings, be beneficial to understand fully technological means and the structure thereof that is adopted.
See also Fig. 1, shown in Figure 2, be stereo appearance figure of the present utility model, vertical view, find out that by knowing shown in the figure the audio-visual cable of the utility model high-frequency digital comprises that at least cable 1, a plurality of high-frequency signal cable 2 and a plurality of low frequency signal cable 3 form, wherein:
This cable 1 has the heart yearn 11 of a plurality of parallel array formulas; and then be coated with insulating barrier 12 respectively in each heart yearn 11 outside; coated separator 13 in insulating barrier 12 outsides of a plurality of heart yearns 11 again; again the protective layer 14 of separator 13 outsides with insulation coated; then constitute the cable 1 of flat; and in the heart yearn 11 of more than 1 parallel array formula of cable; a plurality of high-frequency signal lines 2 that formation is arranged in parallel; 2 on a plurality of high-frequency signal lines are to have a plurality of high frequency earthing lines 21 and a plurality of two adjacent high-frequency signal transmission wires 22; 23 form; and a plurality of high frequency earthing lines 21 outsides are for being coated with the insulating barrier 12 of black; and a plurality of two adjacent high-frequency signal transmission wires 22; 23 outsides then can be coated with white and red insulating barrier 12 respectively; adjacent white in two again; red highs signal transmssion line 22; 23 insulating barrier 12 outsides; utilize screen 24 to coat; for high-frequency signal transmission wire 22; 23 have better shielding; isolation effect; be not vulnerable to electromagnetic interference yet; and show a plurality of low frequency signal lines 3 in adjacent a plurality of high-frequency signal line 2 one side parallel; and a plurality of low frequency signal lines 3 are coated with red insulating barrier 12 respectively in heart yearn 11 outsides; then away from a plurality of high-frequency signal lines 2 in the side in addition of a plurality of low frequency signal lines 3 for being provided with earth connection 4; use group and constitute the audio-visual cable of high-frequency digital of the present utility model, for the stable transfer video-audio signal.
Above-mentioned cable 1 its a plurality of high-frequency signal lines 2, high frequency earthing line 21 with black, the high-frequency signal transmission wire 22 of white and red high-frequency signal transmission wire 23, three kinds of color adjacent bonds merging are in regular turn arranged with the parallel array formula, group constitutes a plurality of high-frequency signal lines 2, and be positioned at a plurality of low frequency signal lines 3 of a plurality of high-frequency signal line 2 sides, then coat 3 groups of structures of a plurality of low frequency signal lines of red insulating barrier 12 with the outside, be combined into one, and can be provided with earth connection 4 in a plurality of low frequency signal lines 3 other sides, promptly by a plurality of black, white, the red high-frequency signal line of arranging in regular turn 2, the low frequency signal line 3 of a plurality of redness and earth connection 4 etc. are arranged cable 1 structure that constitutes this creation with the parallel array formula.
And the wire rod of cable 1 is after making, must disturb (EMI through anti-electromagnetic wave, Electro MagneticInterference) test just can be used for transmission signals, and the test number of traditional wire rod (please consulting simultaneously shown in the annex one), the frequency values of its wire rod (Frequency) all exceeds standard value (Level, about 40dBu V/m), but the wire test of cable 1 of the present utility model (please consulting simultaneously shown in the annex two), its frequency values (Frequency) all is lower than standard value (Level, about 40dBu V/m), allow cable 1 of the present utility model be able in qualified test number, use, can reduce the problem of Electromagnetic Interference, and can promote the stability that the high-frequency digital video-audio signal transmits, can be for transmitting video-audio signal clearly.
See also Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, be vertical view of the present utility model, the three-dimensional exploded view of preferred embodiment, the three-dimensional exploded view of preferred embodiment bottom surface, simple and easy pin position schematic diagram, the aforesaid cable 1 of the utility model, for being provided with 19 heart yearns 11, butt up against on the male of HDMI (High Definition Multimedia Interface) HDMI connector, and 19 arrange in regular turn on heart yearn 11 same planes, its the 1st to the 19th core is respectively: GND-2,2+, 2-, GND-1,1+, 1-, GND-0,0+, 0-, GND-C, C+, C-, CEC, NC, SCL, SDA, GND, + 5V, pin positions such as HPD are on a plurality of metallic contacts 5111 in order to the first surface 511 of the wiring board 51 that is electrically connected at high-frequency electric connecter 5; And a plurality of conversion terminals 52 pin positions of the electric connector 5 of high frequency, can be electric connector 5 patterns of HDMI, its 1 to 19 terminal supportor position then be respectively 2+, GND-2,2-, 1+, GND-1,1-, 0+, GND-0,0-, C+, GND-C, C-, CEC, NC, SCL, SDA, GND ,+the different pin of 5V, HPD position, can be electrically connected at a plurality of first contacts 5112 of wiring board 51 first surfaces 511, a plurality of second contacts 5121 of second surface 512.
And the heart yearn 11 of this cable 1 is set to 20 cores, can butt up against in the male joint of electric connector 5 of display interface DisplayPort; If the heart yearn 11 of this cable 1 at least 24 cores are set, then can butt up against in the male joint of electric connector 5 of the relevant specification of digital visual interface DVI.
As for aforesaid cable 1, a plurality of heart yearns 11 of its inside are that the types of metals material of flexual aluminium, iron, copper is made; And be coated on the screen 24 of insulating barrier 12 outsides of two adjacent high-frequency signal transmission wires 22,23 of a plurality of high-frequency signal lines 2, can be that aluminium foil coats, copper cash twines or copper cash braiding and constituting; And the earth connection 4 of the high frequency earthing line 21 of a plurality of high-frequency signal lines 2, cable 1, the types of metals material that can be zinc-plated (Tinned Copper Wire), copper cash or silver jacketed wire constitutes.
See also Fig. 2, Fig. 3, Fig. 6, shown in Figure 7, be vertical view of the present utility model, the three-dimensional exploded view of preferred embodiment, the stereo appearance figure of preferred embodiment, the stereo appearance figure of user mode, find out by knowing among the figure, the audio-visual cable of high-frequency digital of the present utility model, for can be in a plurality of parallel array formula heart yearns 11 of cable 1, welding respectively, be linked to a plurality of metallic contacts 5111 of wiring board 51 first surfaces 511 of default electric connector 5, and with first surface 511 a plurality of first contacts 5112 of sides in addition, a plurality of conversion terminals 52 for default electric connector 5 weld respectively, link, and a plurality of conversion terminals 52 side in addition then extend to respectively in the spliced eye 530 of the docking section 53 of presetting electric connector 5, cable 1 can be electrically connected at default electric connector 5, and by presetting the docking section 53 of electric connector 5, can relatively electrically peg graft with the connector of the relative pattern in outside, utilize cable 1 and default electric connector 5 to reach, carry out the purpose of high-frequency digital video-audio signal transmission; Default electric connector 5 can be the connecting interface that the digital audio-video video of various types connectors such as HDMI connector, DisplayPort connector, the relevant specification connector of DVI, video-audio signal connector is used.
Therefore; the above only is preferred embodiment of the present utility model; non-so limit to claim of the present utility model; cable 1 of the present utility model is in a plurality of heart yearns 11 of parallel array formula; parallel is shown a plurality of high-frequency signal lines 2, a plurality of low frequency signal line 3 and earth connection 4; and in two adjacent high-frequency signal transmission wires, 22,23 outsides of a plurality of high-frequency signal lines 2; coated screen 24; can reach protection high frequency transmission line 22,23 and not be subjected to the purpose of noise, Electromagnetic Interference, make the transmission signals that a plurality of high-frequency signal lines 2 can be stable.
When the improvement of the audio-visual cable of above-mentioned high-frequency digital of the present utility model is configured in actual use, have following advantage, as:
(1) cable 1 is provided with earth connection 4 except a plurality of heart yearns 11 1 sides of inner parallel array formula, and in two adjacent high-frequency signal transmission wire 22, the 23 outside screens 24 that coat of a plurality of high-frequency signal lines 2, to promote the quality of a plurality of high-frequency signal line 2 transmission signals, be not subject to the interference of other electromagnetic wave, electronic noise, also can be for the stable transmitting audio-video signal of cable 1.
(2) a plurality of heart yearns 11 of cable 1 inner parallel array formula, for with a plurality of high-frequency signal lines 2, a plurality of low frequency signal line 3 with to be arranged in parallel, utilize screen 24 to be coated in 2 on a plurality of high-frequency signal lines again, also can avoid a plurality of high-frequency signal lines 2, a plurality of low frequency signal lines 3 between produce the phenomenon of phase mutual interference, and effectively isolating electromagnetic and noise.
The utility model is mainly; a plurality of heart yearns with the inner parallel array formula of cable; have a plurality of high-frequency signal lines, a plurality of low frequency signal line, earth connection respectively; and in two adjacent high-frequency signal transmission wire outsides of a plurality of high-frequency signal lines; coated screen; and can reach a plurality of high-frequency signal line transmission signals the time; not disturbed by electromagnetic wave or electronic noise and be main key protection point; for cable can be stable transmission signals, be only to make cable have the stable transfer signal and shielding, jamming-proof advantage are arranged.
More than be illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within spirit that claim limits and scope, but they will fall in the protection range of the present utility model all.
Claims (10)
1. the improvement of the audio-visual digital cable of high frequency is constructed; this cable inside is provided with the heart yearn of a plurality of parallel array formulas; each heart yearn outside is coated with an insulating barrier respectively and is coated a separator in described a plurality of core insulation layers outside; this cable also has a plurality of low frequency signal lines and a plurality of high-frequency signal line; and the heart yearn outside of described a plurality of parallel array formulas is coated a protective layer again, it is characterized in that:
The heart yearn of described a plurality of parallel array formulas, for this insulating barrier outside with two adjacent heart yearns of described a plurality of high-frequency signal lines is coated with a screen of insulating electron noise jamming again, and in away from a plurality of low frequency signal lines of described a plurality of high-frequency signal lines in addition side be provided with earth connection.
2. the improvement of the audio-visual digital cable of high frequency structure according to claim 1 is characterized in that, this cable is to be provided with on the male that 19 heart yearns butt up against a HDMI (High Definition Multimedia Interface) HDMI connector.
3. the improvement of the audio-visual digital cable of high frequency structure according to claim 1 is characterized in that, this cable is to be provided with in the male joint that 20 heart yearns butt up against a display interface DisplayPort connector.
4. the improvement of the audio-visual digital cable of high frequency structure according to claim 1 is characterized in that, the butting up against in the male joint of a digital visual interface DVI specification connector at least 24 cores are set of this cable.
5. the improvement of the audio-visual digital cable of high frequency is constructed according to claim 1, it is characterized in that a plurality of heart yearns of this cable are the material of flexual aluminium, iron, copper.
6. the improvement of the audio-visual digital cable of high frequency is constructed according to claim 1, it is characterized in that, this screen is that aluminium foil coats, copper cash twines or the copper cash braiding constitutes.
7. the improvement of the audio-visual digital cable of high frequency is constructed according to claim 1, it is characterized in that this earth connection is the material of tinned wire, copper cash or silver jacketed wire.
8. the improvement of the audio-visual digital cable of high frequency is constructed according to claim 1, it is characterized in that, described a plurality of high-frequency signal lines are for comprising a plurality of high frequency earthing lines and a plurality of two adjacent high-frequency signal transmission wires at least.
9. as the improvement structure of the audio-visual digital cable of high frequency as described in the claim 8, it is characterized in that, described earth connection for outside black insulating barrier, the two adjacent high-frequency signal transmission wires of coating then for coat white, red insulating barrier respectively in the outside.
10. the improvement of the audio-visual digital cable of high frequency is constructed according to claim 1, it is characterized in that, described a plurality of low frequency signal lines are the outside insulating barrier that is coated with redness respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200094840U CN201438391U (en) | 2009-04-02 | 2009-04-02 | Improved construction of HF audio and video digital cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200094840U CN201438391U (en) | 2009-04-02 | 2009-04-02 | Improved construction of HF audio and video digital cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438391U true CN201438391U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200094840U Expired - Fee Related CN201438391U (en) | 2009-04-02 | 2009-04-02 | Improved construction of HF audio and video digital cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201438391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306890A (en) * | 2011-06-28 | 2012-01-04 | 东莞市日新传导科技股份有限公司 | High-frequency high-speed data connector |
| CN103390447A (en) * | 2013-08-07 | 2013-11-13 | 深圳市得润电子股份有限公司 | HDMI wire for high definition video/audio playing equipment |
-
2009
- 2009-04-02 CN CN2009200094840U patent/CN201438391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306890A (en) * | 2011-06-28 | 2012-01-04 | 东莞市日新传导科技股份有限公司 | High-frequency high-speed data connector |
| CN103390447A (en) * | 2013-08-07 | 2013-11-13 | 深圳市得润电子股份有限公司 | HDMI wire for high definition video/audio playing equipment |
| CN103390447B (en) * | 2013-08-07 | 2016-08-24 | 深圳市得润电子股份有限公司 | A kind of HDMI wire for HD video/audio-frequence player device |
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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: 20100414 Termination date: 20140402 |