CN101252032B - Audio and video connecting signal lines - Google Patents
Audio and video connecting signal lines Download PDFInfo
- Publication number
- CN101252032B CN101252032B CN2008100271614A CN200810027161A CN101252032B CN 101252032 B CN101252032 B CN 101252032B CN 2008100271614 A CN2008100271614 A CN 2008100271614A CN 200810027161 A CN200810027161 A CN 200810027161A CN 101252032 B CN101252032 B CN 101252032B
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- shielding layer
- layer
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- graphite composite
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Abstract
The present invention relates to a connection signal line for audio, video signal transmission, comprising a conductor, and an insulation layer, a shielding layer and an outer sheathing layer, which are orderly coated on the conductor from inside to outside. The shielding layer is a PVC graphite composite shielding layer. When the connection signal line is used as a video monitoring connection signal line, a polyester film isolation layer and a metal wire mesh grid shielding layer can be orderly arranged between the PVC graphite composite shielding layer and the outer sheathing layer. Herein,the PVC graphite composite shielding layer and the metal wire mesh grid layer are combined to be a mixed shielding layer. The signal line not only has the advantages of high production efficiency andlow production cost, but also has good shielding performance. By testing, each technical index of the signal line reaches or exceeds the technical index of the prior double metal wire mesh grid shielding layer video monitoring signal connection signal line. The effective transmission distance of the single-grade signal of the signal line is capable of reaching 400 m.
Description
Technical field:
The present invention relates to the connection holding wire of a kind of audio frequency, video signal transmission.
Background technology:
Existing audio frequency connects holding wire, and mainly insulating barrier, woven wire cloth screen and the external sheath layer of coating constitute successively from inside to outside by electric conductor and from electric conductor; Existing video connects holding wire, especially video monitoring connects holding wire, and mainly insulating barrier, the first woven wire cloth screen, polyester film separator, the second woven wire cloth screen and the external sheath layer of coating constitute successively from inside to outside by electric conductor and from electric conductor.The main effect of woven wire cloth screen is: (1) constitutes signal circuit as outer conductor with electric conductor; (2) prevent outside electromagnetic interference, guarantee the fidelity transmission of signal source; (3) prevent the transmission signals loss that leaks, improve effective propagation path.In order to improve its antijamming capability and to improve effective propagation path, existing video connects holding wire and all adopts double-level-metal silk mesh grid screen.
No matter be that audio frequency connects holding wire or video connects holding wire, owing to adopt the woven wire cloth screen, therefore have following shortcoming: (1) shield effectiveness is relevant with the density of woven wire cloth, and because of wire braid is netted, shield effectiveness is undesirable; (2) consume a large amount of expensive copper materials, production efficiency is low, production cost height, and the own wt of increase holding wire; (3) because shield effectiveness is undesirable, effective propagation path is shorter, the single-stage signal effective propagation path that for example existing video monitoring connects holding wire is 200 meters to the maximum, the distance of camera and host computer surpasses 200 meters, the centre must be provided with amplifier, this not only increases the expense of material, equipment, also sets up the increase difficulty to installation.
Summary of the invention:
The objective of the invention is to connect the shortcoming of holding wire, provide that a kind of shield effectiveness is good, the signal effective propagation path long and the low audio and video connecting signal lines of production cost at existing audio frequency, video.
The present invention comprises electric conductor and the insulating barrier, screen and the external sheath layer that coat successively from inside to outside from electric conductor, and described screen is a PVC graphite composite shielding layer.
The present invention can set up polyester film separator and woven wire cloth screen successively between described PVC graphite composite shielding layer and external sheath layer.
The present invention, the thickness of described PVC graphite composite shielding layer is 0.15-0.30mm.
The present invention, the formation of described PVC graphite composite shielding layer comprises following weight ratio raw material:
Polyvinyl chloride resin 50-60; Plasticizer 40-50; Graphite powder 10-20; Stabilizer 2-5; Lubricant 2-3; Modifier 1-3.
The present invention, it is the Corvic of TK-1000 that described polyvinyl chloride resin can be selected model for use; Described plasticizer can adopt dioctyl phthalate (DOP) or triisooctyl trimellitate (TOTM); Described graphite powder can be selected nickel plating, silver-plated graphite powder for use, to improve its shield effectiveness; Described stabilizer can adopt the Ca-Zn stabilizer; Described lubricant can adopt positive butyl ester or PE wax; Described modifier can adopt elastomer.
The present invention, owing to adopt PVC graphite composite bed as screen, the woven wire cloth screen that replaces original audio frequency connection holding wire is connected the first woven wire cloth screen of holding wire with video monitoring, not only have advantages such as production efficiency height, production cost are low, but also have excellent shield effectiveness.
Description of drawings:
Fig. 1 is the structure principle chart that embodiment 1 audio transmission connects holding wire;
Fig. 2 is the structure principle chart that embodiment 2 video monitorings connect holding wire.
Among the figure, 1, electric conductor 2, insulating barrier 3, PVC graphite composite shielding layer 4, polyester film separator 5, woven wire cloth screen 6, external sheath layer.
Embodiment:
Embodiment 1, audio transmission connect holding wire.
With reference to Fig. 1, this audio transmission connects holding wire, and insulating barrier 2, PVC graphite composite shielding layer 3 and the external sheath layer 6 of coating constitute successively from inside to outside by electric conductor 1 and from electric conductor 1.The formation of described PVC graphite composite shielding layer comprises following raw material (containing the weight multiple): TK-1000 Corvic 60kg; Dioctyl phthalate (DOP) 45kg; Nickel plating, silvering graphite powder (product that can adopt eyebrow depressed place, Xi'an chemical industry Paper Co., Ltd to produce) 18.0kg; Ca-Zn stabilizer 4.0kg; PE wax 2.5kg; Modifier elastomer (TPE) 2.5kg; Described PVC graphite composite shielding layer extrudes common apparatus production through cable, and thickness is 0.20 ± 0.05mm; It is identical that the production method of all the other electric conductors 1, insulating barrier 2 and external sheath layer 6 and technical indicator and existing audio transmission are connected holding wire.
During use, the method for attachment of PVC graphite composite bed is identical with virgin metal silk mesh grid screen.Owing to adopt PVC graphite composite bed as screen, replace the woven wire cloth screen that original audio frequency connects holding wire, not only have advantages such as production efficiency height, production cost be low, but also has excellent shield effectiveness, after testing, every technical indicator arrives or surpasses the technical indicator of existing woven wire cloth screen audio transmission connection holding wire.
With reference to Fig. 2, this video monitoring connects holding wire, and insulating barrier 2, PVC graphite composite shielding layer 3, polyester film separator 4, woven wire cloth screen 5 and the external sheath layer 6 of coating constitute successively from inside to outside by electric conductor 1 and from electric conductor 1.The formation of described PVC graphite composite shielding layer comprises following raw material (containing the weight multiple): TK-1000 Corvic 60kg; Dioctyl phthalate (DOP) 45kg; Nickel plating, silvering graphite powder (product that can adopt eyebrow depressed place, Xi'an chemical industry Paper Co., Ltd to produce) 18kg; Ca-Zn stabilizer 4kg; Positive butyl ester 2.5kg; Modifier elastomer (TPE) 2.5kg, described PVC graphite composite shielding layer extrudes common apparatus production through cable, and thickness is 0.20 ± 0.05mm; It is identical that the production method of all the other electric conductors 1, insulating barrier 2, polyester film separator 4, woven wire cloth screen 5 and external sheath layer 6 and technical indicator and existing video monitoring are connected holding wire.
Owing to adopt PVC graphite composite bed to replace the first metal wire knitted stratum reticulare that the original video monitoring connects holding wire, during use, PVC graphite composite bed is connected from beginning to end with the metal wire knitted stratum reticulare, merge to constitute and mix screen, adopt and mix screen, not only have advantages such as production efficiency height, production cost be low, but also has excellent shield effectiveness, after tested, every technical indicator arrives or surpasses the technical indicator that existing composite wire mesh grid screen video monitoring connects holding wire, and its single-stage signal effective propagation path can reach 400 meters.This video monitoring is connected signal line application monitor in ordinary video, the centre needn't be provided with amplifier, also can reach effect clearly, and this has not only saved the expense of material installation, also sets up to installation and provides convenience.
Claims (2)
1. audio and video connecting signal lines, comprise electric conductor (1) and the insulating barrier (2), screen and the external sheath layer (6) that coat successively from inside to outside from electric conductor (1), it is characterized in that: described screen is a PVC graphite composite shielding layer (3), and its formation comprises the raw material of following weight: TK-1000 Corvic 60kg; Dioctyl phthalate 45kg; Nickel plating, silvering graphite powder 18.0kg; Ca-Zn stabilizer 4.0kg; PE wax or positive butyl ester 2.5kg; Modifier elastomer TPE2.5kg extrudes common apparatus production through cable, and thickness is 0.15-0.30mm.
2. audio and video connecting signal lines according to claim 1 is characterized in that: between described PVC graphite composite shielding layer (3) and external sheath layer (6), be provided with polyester film separator (4) and woven wire cloth screen (5) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100271614A CN101252032B (en) | 2008-03-31 | 2008-03-31 | Audio and video connecting signal lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100271614A CN101252032B (en) | 2008-03-31 | 2008-03-31 | Audio and video connecting signal lines |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101445539A Division CN101335120B (en) | 2008-03-31 | 2008-03-31 | Electro-magnetic shielding composite material for audio and video connection signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252032A CN101252032A (en) | 2008-08-27 |
| CN101252032B true CN101252032B (en) | 2010-07-07 |
Family
ID=39955372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100271614A Expired - Fee Related CN101252032B (en) | 2008-03-31 | 2008-03-31 | Audio and video connecting signal lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101252032B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609732B (en) * | 2009-07-24 | 2012-07-04 | 上海德力西集团有限公司 | Shielding layer structure of flame-retardant cable and production process thereof |
| CN102982877A (en) * | 2012-12-24 | 2013-03-20 | 揭阳市广福电子实业有限公司 | Audio and video signal transmission conduction wire |
| CN102982858A (en) * | 2012-12-24 | 2013-03-20 | 揭阳市广福电子实业有限公司 | Conductive shielding composite for audio and video signal transmission conductor wire |
| CN103772855B (en) * | 2014-01-23 | 2016-02-03 | 揭阳市广福电子实业有限公司 | A kind of matrix material preparing electromagnetic shielding conductive heat-shrink tube |
| CN103871564A (en) * | 2014-03-13 | 2014-06-18 | 苏州科茂电子材料科技有限公司 | Novel micro coaxial cable |
| CN106521981A (en) * | 2016-12-09 | 2017-03-22 | 浙江盖亚纺织有限公司 | Conductive mesh fabric and manufacturing method thereof |
-
2008
- 2008-03-31 CN CN2008100271614A patent/CN101252032B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101252032A (en) | 2008-08-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jieyang Grand Full Electronic Industrial Co., Ltd. Assignor: Xu Fuzhang Contract record no.: 2010440001156 Denomination of invention: Audio and video connecting signal lines Granted publication date: 20100707 License type: Exclusive License Open date: 20080827 Record date: 20100816 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200716 Address after: Pan Dong Zhen Tan Jiao Cun, Jieyang Industrial Park, Jieyang City, Guangdong Province Patentee after: Guangdong Guangfu Electronic Industry Co., Ltd Address before: 522031 Guangdong Province, Jieyang City Dongshan Pandong Tan Kok village Jieyang grandfull Electronic Industrial Co. Ltd. Patentee before: Xu Fuzhang |
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| 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: 20100707 Termination date: 20210331 |