CN103474143A - HDMI (High-Definition Multimedia Interface) digital signal transmission cable device - Google Patents
HDMI (High-Definition Multimedia Interface) digital signal transmission cable device Download PDFInfo
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- CN103474143A CN103474143A CN2013103768102A CN201310376810A CN103474143A CN 103474143 A CN103474143 A CN 103474143A CN 2013103768102 A CN2013103768102 A CN 2013103768102A CN 201310376810 A CN201310376810 A CN 201310376810A CN 103474143 A CN103474143 A CN 103474143A
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- electromagnetic shielding
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Abstract
The invention discloses an HDMI (High-Definition Multimedia Interface) digital signal transmission cable device. The HDMI digital signal transmission cable device is composed of an over sheath, an aluminum-foil Mylar, an anti-electromagnetic interference coiled layer, electromagnetic shielding core wires and single-core wires, wherein ten electromagnetic shielding core wires surround four single-core wires, the anti-electromagnetic interference coiled layer wraps up the ten electromagnetic shielding core wires, the aluminum-foil Mylar wraps up the anti-electromagnetic interference coiled layer, the over sheath wraps up the aluminum-foil Mylar, the electromagnetic shielding core wire is composed of a conductor, a tinned copper woven belt and a PET (polyethylene terephthalate) belt, the tinned copper woven belt wraps up the conductor, and the PET belt wraps up the tinned copper woven belt. The HDMI digital signal transmission cable device has the technical effects that each strand of conductor is externally treated with electromagnetic shielding to form a core wire capable of transmitting signals, thus, a plurality strands of core wires can be concentrated more flexibly, and cross section area is reduced; a frequently-used ground wire is canceled, the grounding function is realized through the tinned copper woven belt, thus, cost is lowered; and each strand of core wire is placed in parallel instead of being twisted in pairs traditionally, which is beneficial for balancing length of each strand of core wire and lowering mismatching of impedance.
Description
Technical field
The invention belongs to the equipment technical field of carry high frequency wideband digital signal, be specifically related to a kind of cable installation of HDMI digital data transmission.
Background technology
HDMI (High-Definition Multimedia Interface, high-definition multimedia digital data transmission interface) be widely used in the multimedia television audio-visual devices, carry high frequency wideband digital signal simultaneously, comprising signal of video signal, voice signal, network signal, compact conformation is just arranged, anti-interference, the characteristics of high-frequency wideband.Along with the acceleration of digital multimedia TV is universal, the HDMI cable installation, as a kind of equipment of carry high frequency wideband digital signal, is more and more used.For the heart yearn to the signal transmission carries out electromagnetic shielding, generally by a pair of signal core line pair twist together, then coated outside tin-coated copper braid over braid and PET are with, after the heart yearn pair twist, it is large that size becomes, and causes the multi cord boundling to produce a large amount of spaces later, and finally cause the chap of HDMI device, cause cost to increase, and reduce the good experience that the user uses.
As can be seen here, still there is defect in above-mentioned existing HDMI cable installation, and is urgently improved.
Summary of the invention
For the shortcoming existed in existing HDMI cable use, the invention provides a kind of cable installation of HDMI digital data transmission, be applied to the high-definition multimedia digital data transmission, solved the problem that needs additional magnet ring.
The present invention realizes like this, a kind of cable installation of HDMI digital data transmission, by outer jacket, aluminium foil wheat draw, anti-electromagnetic interference winding layer, electromagnetic shielding heart yearn and single-core line form, article ten, the electromagnetic shielding heart yearn is around surrounding four single-core lines, ten electromagnetic shielding heart yearns of anti-electromagnetic interference winding layer parcel, the aluminium foil wheat is drawn the anti-electromagnetic interference winding layer of parcel, outer jacket parcel aluminium foil draws by wheat, the electromagnetic shielding heart yearn is comprised of wire, tin-coated copper braid over braid and PET band, tin-coated copper braid over braid parcel wire, PET band parcel tin-coated copper braid over braid.
What better, electromagnetic shielding heart yearn and single-core line were non-pair twist is arranged in parallel.
Better, wire is comprised of metal core wire and plastic layer.
Advantage of the present invention is: often the heart yearn that electromagnetic shielding is treated as transmitting signal is all carried out in one wire outside, when making multiply heart yearn boundling, has more flexibility, has reduced cross-sectional area; Cancelled earth connection commonly used, grounding function weaves and brings realization by tin-coated copper, and then has reduced cost; Each burst of parallel placement of heart yearn, rather than traditional pair twist, be conducive to the length of balanced each strand like this, falls low-impedancely not mate.
The accompanying drawing explanation
Fig. 1 is the cross sectional representation of embodiments of the invention.
Fig. 2 is the cross sectional representation of the electromagnetic shielding heart yearn of embodiments of the invention.
Accompanying drawing explanation: 1, outer jacket; 2, the aluminium foil wheat is drawn; 3, anti-electromagnetic interference winding layer; 4, electromagnetic shielding heart yearn; 5, single-core line; 6, metal core wire; 7, plastic layer; 8, tin-coated copper braid over braid; 9, PET band.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with above-mentioned drawings and Examples, the present invention is described in further detail.
With reference to figure 1 and Fig. 2, a kind of cable installation of HDMI digital data transmission, by outer jacket 1, aluminium foil wheat draw 2, anti-electromagnetic interference winding layer 3, electromagnetic shielding heart yearn 4 and single-core line 5 form, article ten, electromagnetic shielding heart yearn 4 is around surrounding four single-core lines 5, ten electromagnetic shielding heart yearns 4 of anti-electromagnetic interference winding layer 3 parcels, the aluminium foil wheat is drawn the anti-electromagnetic interference winding layer 3 of 2 parcel, outer jacket 1 parcel aluminium foil wheat draws 2, electromagnetic shielding heart yearn 4 is with 9 to form by wire, tin-coated copper braid over braid 8 and PET, tin-coated copper braid over braid 8 parcel wires, PET is with 9 parcel tin-coated copper braid over braids 8.What electromagnetic shielding heart yearn 4 and single-core line 5 were non-pair twist is arranged in parallel.Wire is comprised of metal core wire 6 and plastic layer 7.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, for example, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the cable installation of a HDMI digital data transmission, it is characterized in that: the cable installation of described HDMI digital data transmission is by outer jacket, aluminium foil draws by wheat, anti-electromagnetic interference winding layer, electromagnetic shielding heart yearn and single-core line form, article described ten, the electromagnetic shielding heart yearn is around surrounding four single-core lines, ten electromagnetic shielding heart yearns of described anti-electromagnetic interference winding layer parcel, described aluminium foil wheat is drawn the anti-electromagnetic interference winding layer of parcel, described outer jacket parcel aluminium foil wheat is drawn, described electromagnetic shielding heart yearn is by wire, tin-coated copper braid over braid and PET band form, described tin-coated copper braid over braid parcel wire, described PET band parcel tin-coated copper braid over braid.
2. the cable installation of HDMI digital data transmission according to claim 1, it is characterized in that: what described electromagnetic shielding heart yearn and single-core line were non-pair twist is arranged in parallel.
3. the cable installation of HDMI digital data transmission according to claim 1, it is characterized in that: described wire is comprised of metal core wire and plastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103768102A CN103474143A (en) | 2013-08-27 | 2013-08-27 | HDMI (High-Definition Multimedia Interface) digital signal transmission cable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103768102A CN103474143A (en) | 2013-08-27 | 2013-08-27 | HDMI (High-Definition Multimedia Interface) digital signal transmission cable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103474143A true CN103474143A (en) | 2013-12-25 |
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ID=49798959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103768102A Pending CN103474143A (en) | 2013-08-27 | 2013-08-27 | HDMI (High-Definition Multimedia Interface) digital signal transmission cable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103474143A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162621A (en) * | 2007-10-30 | 2008-04-16 | 李明斌 | Shielding electrical cable for military industry equipment |
| US20100084157A1 (en) * | 2008-10-03 | 2010-04-08 | Sure-Fire Electrical Corporation | Digital audio video cable |
| CN202084315U (en) * | 2011-03-03 | 2011-12-21 | 万泰光电(东莞)有限公司 | Novel HDMI (High-Definition Multimedia Interface) high-definition cable structure |
| CN203377003U (en) * | 2013-08-27 | 2014-01-01 | 深圳市九洲蓉胜科技有限公司 | Cable device for HDMI digital signal transmission |
-
2013
- 2013-08-27 CN CN2013103768102A patent/CN103474143A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162621A (en) * | 2007-10-30 | 2008-04-16 | 李明斌 | Shielding electrical cable for military industry equipment |
| US20100084157A1 (en) * | 2008-10-03 | 2010-04-08 | Sure-Fire Electrical Corporation | Digital audio video cable |
| CN202084315U (en) * | 2011-03-03 | 2011-12-21 | 万泰光电(东莞)有限公司 | Novel HDMI (High-Definition Multimedia Interface) high-definition cable structure |
| CN203377003U (en) * | 2013-08-27 | 2014-01-01 | 深圳市九洲蓉胜科技有限公司 | Cable device for HDMI digital signal transmission |
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| 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: 20131225 |