CN103268783A - High definition audio and video transmission line of mobile terminal - Google Patents
High definition audio and video transmission line of mobile terminal Download PDFInfo
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- CN103268783A CN103268783A CN2013101907628A CN201310190762A CN103268783A CN 103268783 A CN103268783 A CN 103268783A CN 2013101907628 A CN2013101907628 A CN 2013101907628A CN 201310190762 A CN201310190762 A CN 201310190762A CN 103268783 A CN103268783 A CN 103268783A
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Abstract
The invention relates to a high definition audio and video transmission line of a mobile terminal. The high definition audio and video transmission line of the mobile terminal comprises five core lines and jackets wrapped on the five core lines, each jacket comprises a sheathing layer and a tinned copper braid from outside in, and the five core lines include two transmission lines, two power lines and one control line. The five core lines are wrapped with aluminum foil layers, the conductors of the transmission lines are made of tinned copper single wires which are twisted together, insulation layers of the transmission lines are of foam-skin structures, the inner layers of the insulation layers are made of foaming polyethylene, the outer layers of the insulation layers are made of solid polyethylene, the two transmission lines are twisted to form one line pair and are wrapped in single-face aluminum foil with a ground line, and a shielding layer made of hot melt polyester tapes is wrapped on the outside of the single-face aluminum foil. By means of the high definition audio and video transmission line of the mobile terminal, the physical size is decreased greatly, the problem that the mobile terminal cannot be charged automatically is solved, the anti-electromagnetic interference capacity of the transmission line is improved, and the audio and video transmission signals of the transmission lines is guaranteed to be low in consumption and stable in synchronous property.
Description
Technical field
The present invention relates to a kind of transmission line, relate in particular to a kind of portable terminal high-definition audio and video transmission line.
Background technology
A kind of portable terminal high-definition audio and video transmission line involved in the present invention, the special type that mainly is based on the exploitation of MHL Application of Interface is transmitted wire rod.MHL(Mobile High-Definition connects Link) Chinese is portable terminal high-definition audio and video standard interface, be to propagate exploitation at mobile phone or portable electric appts audio-video signal specially by mobile high definition interconnection technique alliance (MHL Consortium), and new novel connection and the transmission technology of releasing.MHL interface and USB interface can be installed in cable of the present invention two ends, one end connects mobile terminal devices such as mobile phone, digital camera, Digital Video and portable media player and is connected, the other end connects HDTV (High-Definition Television), high-clear display, high definition projecting apparatus etc. and plays display device, thereby realizes high definition, two-forty, the low-loss transmission of mobile terminal device audio-video signal.In addition, this wire rod also possesses the function for the charging of portable terminal electronic equipment.
Up to the present, the portable terminal field of signal transmissions is most widely used to be HDMI or USB3.0 wire rod, the major defect that these two kinds of wire rods exist: the one, the wire rod physical size is big, and wherein the HDMI wire rod includes 19 heart yearns, and the USB3.0 wire rod includes 10 heart yearns, the finished product external diameter is more than 6.0mm, many heart yearns have improved the welding difficulty of miniature interface, are difficult to guarantee the quality of interface, and external diameter causes high material consumption greatly simultaneously, the corresponding increase of volume and weight is unfavorable for carrying; The 2nd, the transmission electric property is not ideal enough, these two kinds of wire rods all adopt video, audio signal by different lines to transmitting, cause the asynchronous or loss of video, audio signal easily, and at present the high-transmission frequency of technology is 5GHz, is difficult to satisfy the high-speed transfer demand of high-definition signal of new generation.
Summary of the invention
Specification requirement according to the MHL interface standard, defective at existing HDMI line and the existence of USB3.0 line, the invention provides a kind of portable terminal high-definition audio and video transmission line, mainly solve reduce physical size, line to the synchronous transmission audio frequency and video, improve transmission frequency, carry problem such as charging.
In order to realize above-mentioned purpose, the present invention has adopted following technical scheme:
Portable terminal high-definition audio and video transmission line comprises 5 heart yearns and is coated on the outer overcoat of 5 heart yearns that described overcoat comprises restrictive coating and tinned copper braid from outside to inside; Described 5 heart yearns comprise 2 transmission lines, 2 power lines and 1 control line, described 5 heart yearns also coat aluminium foil layer outward, to be that the tin-coated copper monofilament is stranded form the conductor of described transmission line, the transmission line insulating barrier adopts the bubble skin structure, internal layer is polyethylene foamed, and skin is real core polyethylene, 2 transmission lines be twisted into line to after, in ground wire is wrapped in the single face aluminium foil, and outside the single face aluminium foil, coats heat and melt polyester belt and form screen.
As preferably: the count of described tinned copper braid is more than or equal to 85%.
As preferably: described restrictive coating adopts the PVC plastic sheath.
Beneficial effect of the present invention is: because heart yearn of the present invention only is 5, the wire rod external diameter is reduced to 4.2mm from 6.0mm, and it is about 50% that volume reduces, and reduced physical size greatly; Owing to be provided with power line, solved the problem of automatic charging; Because cored wire conductor all adopts the strands structure, both satisfied the transmission requirement of conductor, solved the physical property requirement such as flexibility, mechanical strength of conductor again, conductor designs three layers of shielding from inside to outside simultaneously, improve the anti-electromagnetic interference performance of wire rod, can guarantee low-loss and the stable net synchronization capability of wire rod transmission tone vision signal.Transmission frequency of the present invention improves 20%, brings up to 6GHz from 5GHz, realizes the lifting of signal transmission rate.
Description of drawings
Fig. 1 is cross-sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of portable terminal high-definition audio and video of the present invention transmission line preferred implementation is made detailed description:
A kind of portable terminal high-definition audio and video transmission line as shown in Figure 1 comprises 5 heart yearns and is coated on the outer overcoat of 5 heart yearns that described overcoat comprises restrictive coating 1 and tinned copper braid 2 from outside to inside; Described 5 heart yearns comprise 2 transmission lines 3,2 power lines 6 and 1 control line 9, described 5 heart yearns also coat aluminium foil layer outward, two transmission lines 3 are realized the set synchronous transmission of video and audio signal, the conductor of described transmission line 3 is 19 bursts of stranded forming of the zinc-plated monofilament of 0.064mm, transmission line 3 insulating barriers adopt the bubble skin structure, internal layer is polyethylene foamed (PE), skin is real core polyethylene, 2 transmission lines 3 be twisted into line to after, in ground wire 7 is wrapped in single face aluminium foil 5, and coating heat is melted polyester belt 4 formation screens outside single face aluminium foil 5.
The count of described tinned copper braid 2 is more than or equal to 85%.Described restrictive coating 1 adopts the PVC plastic sheath.
Claims (3)
1. portable terminal high-definition audio and video transmission line is characterized in that: comprise 5 heart yearns and be coated on the outer overcoat of 5 heart yearns, described overcoat comprises restrictive coating (1) and tinned copper braid (2) from outside to inside; Described 5 heart yearns comprise 2 transmission lines (3), 2 power lines (6) and 1 control line (9), described 5 heart yearns also coat aluminium foil layer outward, to be that the tin-coated copper monofilament is stranded form the conductor of described transmission line (3), transmission line (3) insulating barrier adopts the bubble skin structure, internal layer is polyethylene foamed (PE), skin is real core polyethylene, 2 transmission lines (3) be twisted into line to after, in ground wire (7) is wrapped in single face aluminium foil (5), and coating heat is melted polyester belt (4) formation screen outside single face aluminium foil (5).
2. portable terminal high-definition audio and video transmission line according to claim 1, it is characterized in that: the count of described tinned copper braid (2) is more than or equal to 85%.
3. portable terminal high-definition audio and video transmission line according to claim 1 is characterized in that: described restrictive coating (1) employing PVC plastic sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101907628A CN103268783A (en) | 2013-05-22 | 2013-05-22 | High definition audio and video transmission line of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101907628A CN103268783A (en) | 2013-05-22 | 2013-05-22 | High definition audio and video transmission line of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103268783A true CN103268783A (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101907628A Pending CN103268783A (en) | 2013-05-22 | 2013-05-22 | High definition audio and video transmission line of mobile terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN103268783A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680750A (en) * | 2013-11-18 | 2014-03-26 | 青岛歌尔声学科技有限公司 | MHL cable and electronic device |
| CN104767079A (en) * | 2015-04-30 | 2015-07-08 | 小鸟科技有限公司 | Cable coupler component |
| CN106961541A (en) * | 2017-04-07 | 2017-07-18 | 信利光电股份有限公司 | A kind of camera device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001274586A (en) * | 2000-03-27 | 2001-10-05 | Kuraray Co Ltd | Electromagnetic wave shield transmission circuit and manufacturing method thereof |
| CN201117362Y (en) * | 2007-08-31 | 2008-09-17 | 天津德塔科技集团有限公司 | Foamed cover insulated structure cable |
| CN202422811U (en) * | 2011-12-19 | 2012-09-05 | 江苏亨通线缆科技有限公司 | High definition multi-media interface cable for transmitting at high speed |
| CN203242368U (en) * | 2013-05-22 | 2013-10-16 | 浙江兆龙线缆有限公司 | Mobile terminal high-definition video-audio transmission line |
-
2013
- 2013-05-22 CN CN2013101907628A patent/CN103268783A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001274586A (en) * | 2000-03-27 | 2001-10-05 | Kuraray Co Ltd | Electromagnetic wave shield transmission circuit and manufacturing method thereof |
| CN201117362Y (en) * | 2007-08-31 | 2008-09-17 | 天津德塔科技集团有限公司 | Foamed cover insulated structure cable |
| CN202422811U (en) * | 2011-12-19 | 2012-09-05 | 江苏亨通线缆科技有限公司 | High definition multi-media interface cable for transmitting at high speed |
| CN203242368U (en) * | 2013-05-22 | 2013-10-16 | 浙江兆龙线缆有限公司 | Mobile terminal high-definition video-audio transmission line |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680750A (en) * | 2013-11-18 | 2014-03-26 | 青岛歌尔声学科技有限公司 | MHL cable and electronic device |
| CN104767079A (en) * | 2015-04-30 | 2015-07-08 | 小鸟科技有限公司 | Cable coupler component |
| CN106961541A (en) * | 2017-04-07 | 2017-07-18 | 信利光电股份有限公司 | A kind of camera device |
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Application publication date: 20130828 |