CN201402675Y - Cable for solo-core non pair-twisting instrument - Google Patents
Cable for solo-core non pair-twisting instrument Download PDFInfo
- Publication number
- CN201402675Y CN201402675Y CN200920053119XU CN200920053119U CN201402675Y CN 201402675 Y CN201402675 Y CN 201402675Y CN 200920053119X U CN200920053119X U CN 200920053119XU CN 200920053119 U CN200920053119 U CN 200920053119U CN 201402675 Y CN201402675 Y CN 201402675Y
- Authority
- CN
- China
- Prior art keywords
- cable
- layer
- core
- conductor
- pair twist
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a cable for a solo-core non pair-twisting instrument, comprising at least two coaxial lead wires, a shielding layer, an inner protective layer and an outer protective layer, wherein the coaxial lead wire comprises a conductor, and an insulating anti-flaming layer is formed by pressing outside the conductor, a metal gauze is weaved outside the insulating anti-flaming layer to form an inner metal gauze weaving layer, an insulating layer is formed by pressing outside the inner metal gauze weaving layer, a metal gauze is weaved outside the insulating layer to form an outer metal gauze weaving layer, the coaxial lead wires are distributed to form a cable core, a wrapping layer is wrapped outside the cable core, the inner protective layer is formed by pressing outsidethe wrapping layer, the inner protective layer is wrapped by the shielding layer, and outer protective layer is formed by pressing outside the shielding layer. As the cable is provided with multipleshielding layers and the insulating layers, the cable has good electromagnetic interference capacity for shielding outside; in addition, as the coaxial lead wires which form the cable core is uniformly arranged in parallel, the cable diameter in the utility model is less than the diameter of conventional cables, the quality is light, raw material is saved, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of cable, relates in particular to a kind of have good reliability, in light weight, the non-pair twist instrument of same core cable that cost is low.
Background technology
Along with the continuous progress and the rapid economy development of social production, data communication and information technology obtain high speed development, under new and high technology and the continuous situation of releasing of high new product, to the constantly variation and the raising of requirement of various basic industries.The quick renewal of network technology and improving constantly of computing power, control, computer-controlled all kinds of instruments are used in a large number with cable as connecting automatically, from separately control separately in the past, develop into to adopt today and many group cable structure form is reached central controlled purpose, line cable industry has dropped into a large amount of research and development strengths both at home and abroad.Simultaneously, also, satisfy the requirement of user Geng Gao bringing in constant renewal in product.
Existing instrument and meter is generally stranded type with the cable core of cable.Stranded molded lines cable promptly twists together several leads that are coated with insulating barrier by certain density mutually, can reduce the degree that signal disturbs, and the electric wave that the electric wave of each root lead radiation in transmission can be sent on other single line is offset.Stranded molded lines cable is divided into two kinds of shielding twisted wire and non-shielding twisted wires.
The shielding twisted wire uses the screen of metal wire braiding to keep out external interference, and after screen was by correct ground connection, the interference signal that receives became electric current, and with the interference signal opposite current that twisted wire forms, both cancel out each other.Shielding twisted wire cost is higher relatively, and when installing than non-shielding conductor difficulty.Non-shielding twisted wire is to eliminate interference by the multiple twin of cable core, and the mutual so stranded purpose of non-shielded cable is exactly to utilize the electromagnetic field interaction that electric current produces in the lead to offset the interference of adjacent wires and the interference that minimizing comes from the outside.Every pair of lead mutual number of times that twines on per inch length has determined the quality of anti-jamming capacity and communication, twine to such an extent that tight more its communication quality is high more, just can support higher network data transfer rate, its cost is also just high more certainly, and high frequency performance is also relatively low simultaneously.
For the cable core of stranded molded lines cable, stranded purpose is in order to increase the cross section of lead.In addition, in the process of signal transmission, be subjected to the influence of load current, temperature, environmental change etc., each bar lead is irregular aspect stressed or motion, and is unfavorable for the stability and the reliability of transmission.Simultaneously will form distributed capacitance between the insulating material of cable, cause the absorption of high-frequency signal very greatly, make that the interference of signal cross-talk and environment is very big to the signal transmission between the cable core, and cause the transmission performance of cable not good.Make noise be reduced to minimum, improve signal to noise ratio, this anti-interference, radiation-resistant ability, the Electro Magnetic Compatibility commonly used by line cable industry embodies.
Continuous innovation along with technology, all trades and professions require more and more higher to the Electro Magnetic Compatibility of cable, promptly require cable to have anti-electromagnetic interference capability preferably, simultaneously can not produce excessive electromagnetic radiation, that is to say to require cable in more abominable electromagnetic environment, to work, can not produce simultaneously the work of other equipment and network around the excessive Electromagnetic Interference.Twisted wire is earlier electromagnetic wave to be received, and just be cancelled subsequently, but along with the raising of frequency, the Electro Magnetic Compatibility of cable can descend.
Therefore, be badly in need of a kind of have good data transmission security, reliability, and the overall non-pair twist instrument of the same core cable that cross-sectional area is little, in light weight, production cost is low.
The utility model content
The purpose of this utility model is to provide a kind of have good data transmission security, reliability, and the overall non-pair twist instrument of the same core cable that cross-sectional area is little, in light weight, production cost is low.
For achieving the above object, the technical solution of the utility model is: provide a kind of with the non-pair twist instrument of core cable, comprise at least two concentric conductors, screen, sheath and outer jacket, wherein, described concentric conductor comprises conductor, the outer extrusion molding one deck insulation of described conductor flame-retardant layer, the outer braided metal net of described insulation flame-retardant layer, wire netting braid in forming, outer extrusion molding one layer insulating of wire netting braid in described, the outer braided metal net of described insulating barrier forms outer wire netting braid, and described concentric conductor is arranged and constituted the cable core, the outsourcing of described cable core is around one deck belting layer, the outer extrusion molding sheath of described belting layer, described screen coats described sheath, the outer extrusion molding outer jacket of described screen.
Preferably, have filler in the gap of described cable core, make things convenient for the moulding of cable core, and the concentric conductor that constitutes the cable core is evenly distributed and keep coaxial parallel, weaken outer bound pair concentric conductor and concentric conductor electromagnetic interference each other.
Preferably, stating conductor is the stranded formation of single or many wires, improves the utility model with the mechanical performance of the non-pair twist instrument of core with cable.
Preferably, the sectional area of wire netting braid is identical with the sectional area of described conductor in described, and the wire netting braid is identical with described conductive material in described, wire netting braid outer bound pair conductor of shielding and conductor interference performance to external world in strengthening make the utility model better with the ability and the fail safe of cable transmission signal with the non-pair twist instrument of core.
The utility model compared with prior art, because the utility model constitutes coaxial cable core with cable by even parallel the arranging of concentric conductor with the non-pair twist instrument of core, and has the insulating barrier that multilayer has the screen of shielding action and has insulation property, make the utility model have good shielding outside electromagnetic interference and shielding electromagnetic interference capability to external world with cable with the non-pair twist instrument of core, when can effectively guarantee message transmission rate, improve the transmission safety of data, reliability, because evenly parallel arranging (promptly between the concentric conductor of formation cable core, the cable core is non-pair twist core), make cable of the present utility model have under the situation of identical signaling rate and amount with conventional pair twist cable, cable diameter of the present utility model is littler than conventional cable diameter, reduce thereby the overall sectional of cable of the present utility model is long-pending, therefore light weight and saving raw material reduce production costs.In addition, also have screen and inside and outside sheath, further intercept cable of the present utility model and reach to external world to external world, have fabulous physical property simultaneously and improve communication quality the electromagnetic interference of cable of the present utility model in the belting layer outside.
Description of drawings
Fig. 1 is that the utility model is with the structural representation of the non-pair twist instrument of core with cable.
Fig. 2 is that the utility model is with the sectional view of the non-pair twist instrument of core with cable.
Fig. 3 is the sectional view of the embodiment of two core cables for the utility model with the non-pair twist instrument of core cable.
Embodiment
As shown in Figures 1 and 2, the utility model comprises four concentric conductors 10 with the non-pair twist instrument of core with cable 1, screen 50, sheath 40 and outer jacket 60, wherein, the radical of described concentric conductor 10 is at least two, determining of concrete radical, be decided according to the actual requirements, described concentric conductor 10 comprises conductor 101, described conductor 101 outer extrusion molding one deck insulation flame-retardant layers 102, described insulation flame-retardant layer 102 outer braided metal nets, wire netting braid 103 in forming, wire netting braid 103 outer extrusion molding one layer insulatings 104 in described, described insulating barrier 104 outer braided metal nets form outer wire netting braid 105, and described concentric conductor 10 is arranged and constituted cable core 20, the described cable core 20 outer one deck belting layers 30 that hold, described belting layer 30 outer extrusion molding sheaths 40, described screen 50 coats described sheath 40, described screen 50 outer extrusion molding outer jackets 60.Has packing material 70 in the gap of described cable core 20, make things convenient for the moulding of cable core 20, and the concentric conductor 10 that makes formation cable core 20 evenly distributes and keeps coaxial parallel, weakens outer bound pair concentric conductor 10 and concentric conductor 10 electromagnetic interference each other.
In the present embodiment, the conductor 101 of described concentric conductor 10 is used for transmission signals, and this conductor 101 is the stranded formation of single or many wires, improves the utility model with the mechanical performance of the non-pair twist instrument of core with cable 1.Interior wire sheathing 103, outer metalolic network braid 105 and screen 50 are the metal wire weaving and form, one side is as the common ground of the signal of conductor 101 transmission, thereby for signal provides current circuit, the gauze screen of the signal that transmits as conductor 101 on the other hand, suppress outer bound pair conductor 101 and conductor 101 electromagnetic interference each other, the shield effectiveness excellence, and cost is low, technology is simple, is easy to large-scale production and manufacturing.Insulation flame-retardant layer 102 with insulating properties and anti-flammability between conductor 101 and interior wire sheathing 103, the fail safe and the reliability of the conductor 101 that the transmission signal in the middle of effectively having protected is used.
The sectional area of the interior wire netting braid 103 of concentric conductor 10 is identical with the sectional area of described conductor 101, and wire netting braid 103 is identical with described conductor 101 materials in described, wire netting braid 103 outer bound pair conductor 101 of shielding and conductor 101 interference performances to external world in strengthening make the utility model better with the ability and the fail safe of cable 1 transmission signals with the non-pair twist instrument of core.
Each concentric conductor 10 non-stranded formation cable cores 20, promptly constitute evenly parallel arranging between the concentric conductor 10 of cable core 20, reduce the signal cross-talk between each lead 10 of each cable core 20, reach the stability and the reliability of transmission, have under the situation of identical signaling rate and amount with conventional pair twist cable, cable 1 diameter of the present utility model is littler than conventional cable diameter, reduces thereby the overall sectional of cable of the present utility model 1 is long-pending.Because the stranded increase sectional area of wire of multiple conducting wires of stranded molded lines cable, but, cause the big more unit of the sectional area current-carrying value of stranded molded lines cable low more simultaneously also owing to the heat radiation influence makes the current-carrying value descend.The sectional area of solid conductor increases under not stranded situation, the current-carrying value can increase, but when increasing owing to the stranded sectional area that makes solid conductor, the increase amplitude of the current-carrying value of bringing because of the increase of sectional area is less than because of the stranded solid conductor current-carrying value decline scope that makes, so during identical ampacity, the wire glass of non-stranded cable is littler than stranded molded lines cable lead.Therefore, the utility model with the non-pair twist instrument of core with the overall sectional of cable 1 long-pendingly reduce, weight is light, save raw material, and then reduce production costs.
The utility model can protect whole cable inside not to be mechanically damaged and chemical corrosion with the non-pair twist instrument of core with the outer jacket 60 of cable 1, makes cable suit to use under multiple adverse circumstances.
Can select the radical of the concentric conductor 10 of cable cable core 20 according to actual needs with the cable cable core 20 of cable 1 with the non-pair twist instrument of core at the utility model, the concentric conductor 10 radical differences of cable cable core 20, but common structure sheaf that is had and related material and technology are all identical.Below in conjunction with Fig. 3, the utility model has two concentric conductors 10 with cable 1 cable core 20 with the non-pair twist instrument of core embodiment is described.
Figure is shown in 3, the structural representation that has the embodiment of two concentric conductors 10 for the utility model with the non-pair twist instrument of core with the cable core 20 of cable 1, it comprises at least two concentric conductors 10, screen 50, sheath 40 and outer jacket 60, wherein, described concentric conductor 10 comprises conductor 101, described conductor 101 outer extrusion molding one deck insulation flame-retardant layers 102, described insulation flame-retardant layer 102 outer braided metal nets, wire netting braid 103 in forming, wire netting braid 103 outer extrusion molding one layer insulatings 104 in described, described insulating barrier 104 outer braided metal nets, form outer wire netting braid 105, described concentric conductor 10 is arranged and is constituted cable core 20, the described cable core 20 outer one deck belting layers 30 that hold, described belting layer 30 outer extrusion molding sheaths 40, described screen 50 coats described sheath 40, described screen 50 outer extrusion molding outer jackets 60.Has packing material 70 in the gap of online cable core 20, make things convenient for the moulding of cable core 20, and the concentric conductor 10 that makes formation cable core 20 evenly distributes and keeps coaxial parallel, weakens outer bound pair concentric conductor 10 and concentric conductor 10 electromagnetic interference each other.
Because the utility model constitutes coaxial cable core 20 with cable 1 by concentric conductor 10 even parallel arranging with the non-pair twist instrument of core, and have by interior wire sheathing 103, the multilayer screen layer that outer metalolic network braid 105 and screen 50 are formed reaches by insulation flame-retardant layer 102, insulating barrier 101, belting layer 30, sheath 40, the multilayer dielectric layer that outer jacket 60 is formed, make the utility model have good shielding outside electromagnetic interference and shielding electromagnetic interference capability to external world with cable 1 with the non-pair twist instrument of core, when can effectively guarantee message transmission rate, improve the transmission safety of data, reliability, because evenly parallel arranging (promptly between the concentric conductor 10 of formation cable core 20, the cable core is non-pair twist core), make cable 1 of the present utility model have under the situation of identical signaling rate and amount with conventional pair twist cable, cable diameter of the present utility model is littler than conventional cable diameter, reduce thereby the overall sectional of cable 1 of the present utility model is long-pending, therefore light weight and saving raw material reduce production costs.In addition, also have screen 50 and inside and outside sheath 40,60, further intercept cable of the present utility model and reach to external world to external world, have fabulous physical property simultaneously and improve communication quality the electromagnetic interference of cable of the present utility model in the belting layer outside.
The utility model is with the selection of the non-pair twist instrument of core with concentric conductor 10 numbers of cable 1 related material, parameter and cable core 20, is well known to those of ordinary skill in the art, no longer is described in detail at this.
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (6)
1. one kind with the non-pair twist instrument of core cable, comprise at least two concentric conductors, screen, sheath and outer jacket, it is characterized in that: described concentric conductor comprises conductor, the outer extrusion molding one deck insulation of described conductor flame-retardant layer, the outer braided metal net of described insulation flame-retardant layer, wire netting braid in forming, outer extrusion molding one layer insulating of wire netting braid in described, the outer braided metal net of described insulating barrier, form outer wire netting braid, described concentric conductor is arranged and is constituted the cable core, the outsourcing of described cable core is around one deck belting layer, the outer extrusion molding sheath of described belting layer, described screen coats described sheath, the outer extrusion molding outer jacket of described screen.
2. as claimed in claim 1 with the non-pair twist instrument of core cable, it is characterized in that: have filler in the gap of described cable core.
3. as claimed in claim 1 with the non-pair twist instrument of core cable, it is characterized in that: described conductor is the stranded formation of single or many wires.
4. as claimed in claim 1 with the non-pair twist instrument of core cable, it is characterized in that: the sectional area of wire netting braid is identical with the sectional area of described conductor in described.
5. as claimed in claim 1 with the non-pair twist instrument of core cable, it is characterized in that: the wire netting braid is identical with described conductive material in described.
6. as claimed in claim 1 with the non-pair twist instrument of core cable, it is characterized in that: described screen forms for the metal wire weaving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920053119XU CN201402675Y (en) | 2009-03-23 | 2009-03-23 | Cable for solo-core non pair-twisting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920053119XU CN201402675Y (en) | 2009-03-23 | 2009-03-23 | Cable for solo-core non pair-twisting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402675Y true CN201402675Y (en) | 2010-02-10 |
Family
ID=41662475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920053119XU Expired - Fee Related CN201402675Y (en) | 2009-03-23 | 2009-03-23 | Cable for solo-core non pair-twisting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402675Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310887A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Signal transmission line for gobs of coal mines |
-
2009
- 2009-03-23 CN CN200920053119XU patent/CN201402675Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310887A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Signal transmission line for gobs of coal mines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101494098A (en) | High temperature resistant compensating cable | |
| CN201838364U (en) | High-voltage multi-core shielded signal cable | |
| CN201402675Y (en) | Cable for solo-core non pair-twisting instrument | |
| CN204087878U (en) | A kind of signal controlling drag chain cable | |
| CN204463936U (en) | Novel computer transmission cable | |
| CN105845263A (en) | Novel computer transmission cable and manufacturing method therefor | |
| CN201298383Y (en) | High temperature resistant compensating cable | |
| CN203192440U (en) | Novel computer cable | |
| CN202584911U (en) | Data cable of broadband and high capacity for local area network | |
| CN207800235U (en) | A kind of termite-proof LSOH anti-flaming fireproof power cable of environment protection, rat | |
| CN206497781U (en) | A kind of coaxial cable | |
| CN202650703U (en) | Light-weight and thin-wall insulated communication cable used in ships and warships | |
| CN201489867U (en) | Fire resistant shielding cable | |
| CN206401055U (en) | A kind of profile conductor twisted cable for being beneficial to protection insulating barrier | |
| CN206441558U (en) | HVDC Transmission system electronic module is connected with measurement head uses high Anti-interference cable | |
| CN204904910U (en) | Compound communication cable of resistant oily corrosion resistant acid and alkali -resistance | |
| CN206075922U (en) | A kind of flame retardant cable | |
| CN205406169U (en) | Environment -friendly smart power grids is with compound high voltage power cable | |
| CN105810282A (en) | High temperature resistance unsheathed shielding mounting wire and manufacturing method thereof | |
| CN214336360U (en) | Novel insulating twisted-pair cable | |
| CN220933789U (en) | Shielded anti-interference cable for rolling stock | |
| CN204463849U (en) | A kind of high temperature resistant without sheath twisted-pair shielded wire | |
| CN218525342U (en) | High-flame-retardance no-dripping-object low-smoke-density environment-friendly non-shielded digital communication cable | |
| CN217933231U (en) | High-temperature-resistant light flexible temperature compensation wire | |
| CN201994133U (en) | Coaxial cable and multi-core coaxial cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG NANYANG CABLE GROUP CO., LTD. Free format text: FORMER OWNER: ZHENG ZHONGNAN Effective date: 20100603 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100603 Address after: Taishan Lu Zhu Jin Gong Ye Qu 515000 Longhu District Guangdong city of Shantou province Guangdong Nanyang cable group Limited by Share Ltd Patentee after: Guangdong Nanyang Cable Group Co., Ltd. Address before: Taishan Lu Zhu Jin Gong Ye Qu 515000 Longhu District Guangdong city of Shantou province Guangdong Nanyang cable group Limited by Share Ltd Patentee before: Zheng Zhongnan |
|
| 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: 20100210 Termination date: 20180323 |