CN201302850Y - Ultramicro coaxial-cable for signal transmission - Google Patents
Ultramicro coaxial-cable for signal transmission Download PDFInfo
- Publication number
- CN201302850Y CN201302850Y CNU2008201424720U CN200820142472U CN201302850Y CN 201302850 Y CN201302850 Y CN 201302850Y CN U2008201424720 U CNU2008201424720 U CN U2008201424720U CN 200820142472 U CN200820142472 U CN 200820142472U CN 201302850 Y CN201302850 Y CN 201302850Y
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- ultramicro
- signal transmission
- cable
- coaxial cable
- coaxial
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Abstract
The utility model belongs to cables, and particularly relates to an ultramicro coaxial cable for signal transmission, which comprises a cabling layer and sheaths, and is characterized in that the cabling layer comprises one or more coaxial core wires; insulating layers are arranged outside conductors of the core wires; shielding layers formed by braiding tinned copper wires are arranged outside the insulating layers; low-smoke zero-halogen inner sheaths are arranged outside the shielding layers; the cabling layer with one or more coaxial core wires are covered with polyester films; and low-smoke zero-halogen outer sheaths are arranged outside the polyester films. Compared with the prior art, the utility model is the ultramicro coaxial cable for signal transmission, and has the beneficial effects of stable structure, reliable performance, compact volume, environmental protection, no pollution, and lower industrial manufactue cost.
Description
Technical field
The utility model belongs to cable, particularly a kind of coaxial cable for ultramicro signal transmission.
Background technology
In a telecommunication system, cable spreads all over whole body just as people's blood vessel, is undertaking the normal operation that the system of assurance is transmitted in power supply, signal controlling.Along with the develop rapidly and the progress of field of telecommunications, the extensive application of electronics, communication apparatus, the use amount of signal-transmitting cable sharply increases.Because transmission cable has all adopted the high-tech manufacturing at present, the line footpath is huge, adopts polyvinyl chloride as sheath, and anti-interference is poor.So with regard to a system, the construction of cable and electrical quality it can be appropriate the processing internal signal transmission, again can be with the system that the is sent to outside of the signal integrity of internal system.Therefore, equipment plays an important role in transmission with transmission cable.Because the cable that prior art is produced is bulky, performance is inferior, and the defective of cable itself can influence the signal quality of transmission, thus the interference signal treatment facility, and this is very disadvantageous for signal processing.Because complex structure, it is its assurance that high-end devices also must be arranged in addition, and difficulty of processing, manufacturing cost are higher.The signal type of attachment is that many point-to-points are fixedly connected between existing field apparatus or laboratory equipment, and there is the defective that wiring is complicated, use inconvenience in this kind connected mode.Simultaneously, the existing cable fire retardancy is poor, in case breaking out of fire is very easily lighted.
Summary of the invention
Purpose of the present invention is intended to overcome the deficiency in the prior art, and a kind of Stability Analysis of Structures, dependable performance, volume compact, coaxial cable for ultramicro signal transmission that industrial manufacturing cost is lower are provided.
For realizing that the technical scheme that purpose of the present invention adopts is: a kind of coaxial cable for ultramicro signal transmission, constitute by stranding layer and sheath, it is characterized in that, the stranding layer comprises one or more coaxial inner conductor, each cored wire conductor has insulating barrier outward, the outer screen of forming by the tinned copper wire braiding of its insulating barrier, its screen has the low smoke and zero halogen inner sheath outward; One or more coaxial inner conductor stranding layer outer wrapping polyester film, polyester film has the low smoke and zero halogen oversheath outward.
Described insulating barrier is by the fluoroplastic insulation layer and the polyethylene foamed insulating barrier is compound constitutes.
Described heart yearn has 8, divides two-layer hierarchical sequence according to 1+7 to arrange.
Adopt different spray printing numbers to distinguish mutually between the described heart yearn inner sheath.
Described inside and outside sheath is an environmental protection low smoke and zero halogen material.
Described oversheath is provided with tear line.
The utility model beneficial effect compared with prior art is:
● cost is low
In present same purposes product, have other cables of same function, manufacturing price is quite expensive, and needs to adopt expensive import manufacturing equipment to guarantee its structural stability.And signal-transmitting cable provided by the invention can substitute the import like product fully, and its performance, structural stability all meet or exceed external like product, and through client's use test, fully can import substitutes.
● Stability Analysis of Structures
Present same purposes product not only costs an arm and a leg, and its performance also is unsettled, causes the instability of its technical indicator.The present invention adds a kind of new environmental protection fluoroplastics as insulating material by the change to its structure, forms the traditional polyethylene insulation of double hyer insulation layer replacement that fluorine+polyethylene foamed is formed, and has reduced dielectric constant, makes the microminiaturization of insulation diameter become possibility.Adopt this novel high-quality import exotic material of fluoroplastics, manufacturability improves.The insulation of employing two-layer compound reduces insulation thickness, improves electric property simultaneously, thereby performances such as the impedance of assurance cable, decay reach the application technology index request.Simultaneously, use 0.26mm silver-plated copper conductor, replace original 0.41mm conductor, further reduce physical dimension, saved resource greatly.
● superior performance
Heart yearn of the present invention adopts 0.26 silver-plated conductor to replace original 0.41mm conductor.Under the high frequency state, electronic signal is in the conductive surface transmission, and the electric conductivity of silver obviously is better than copper; Composite foamed dielectric greatly reduces dielectric constant, thereby, signal transmission rate is improved, transmit more stablely, the overall performance electrical performance of cable is got a promotion.Adopted the fluoroplastics material, reduced the cable attenuation constant, improved the uniformity of cable electrical property, increased the antijamming capability of whole cable, thereby improved the anti-high-frequency ability of cable greatly.
● physical property is superior
Close conductor uses one deck fluoroplastics, can improve the tensile strength of conductor, increases break resistance, and oil resistance is strengthened, and fluoroplastics also have good noninflammability simultaneously.The use of low smoke and zero halogen environment-friendly materials, replace traditional PVC sheath material, cable is when burning, polyvinyl chloride can produce a large amount of toxic gases, the low smoke and zero halogen material itself has anti-flaming function, and experiment shows that this material can be from putting out in 30 seconds, do not discharge toxic gas, environmentally safe in the burning.
● work simplification
Present same purposes product, the manufacturing process complexity consumes great human and material resources, financial resources.And transmission cable provided by the invention, technology is simple, and Stability Analysis of Structures can realize on general device with few personnel.Thereby further reduce production costs, enhance productivity.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is a core structure enlarged diagram of the present invention.
Among the figure: 1-8 heart yearn coaxial cable, 9 polyester films, 10 tear lines, 11 oversheaths, 12 silver-plated copper conductors, 13 fluoroplastic insulation layers, 14 polyethylene foamed insulating barriers, 15 screens, 16 inner sheaths
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, details are as follows to embodiment, structure, feature that foundation the utility model provides:
Embodiment sees also Fig. 1, Fig. 2, and cable is made of stranding layer and sheath.The stranding layer becomes cable structure to divide 2 layers of hierarchical sequence according to 1+7 to arrange by 8 heart yearn coaxial cable 1-8, also can be 2 cores, 4 cores, 12 cores, 32 cores or other number.For post-production needs, be printed on 1-8 coding lettering respectively on every heart yearn coaxial cable inner sheath 16 front and back ends.Put in order and arrange by the different letterings of heart yearn inner sheath, one or more coaxial inner conductor stranding layer outer wrapping polyester film 9, polyester film has low smoke and zero halogen oversheath 11 outward, and sheath 11 is provided with tear line 10.Heart yearn is the insulating barrier that 0.26mm silver-plated copper conductor 12, each cored wire conductor have fluoroplastic insulation layer 13 and polyethylene foamed insulating barrier 14 compound formations outward, the outer screen of being made up of the tinned copper wire braiding 15 of its insulating barrier, its screen has low smoke and zero halogen inner sheath 16 outward.
1. the composite insulation layer formed of fluorine (FEP) plastic insulating layer 13 and polyethylene foamed (PE3485) insulating barrier 14.Main effect:
A). reduce the physical dimension of original cable, fluorine (FEP) plastic insulation layer thickness only has 0.08mm, and polyethylene foamed (PE3485) insulating barrier also has only 0.41mm.Make whole construction of cable compactness, line directly dwindles.
B). strengthen signal transmission performance when the high frequency state, fluorine (FEP) material dielectric constant is little, under the high-frequency transmission state, helps the transmission of signal, and it is little to decay, impedance stabilization.
2. adopt the core screen, not only strengthened the whole anti-interference of cable, and also can not be subjected to mutual signal interference between 8 cores, improved the reliability of using.
3. adopt the low smoke and zero halogen material as sheath material, when ignition of cable, can stop propagation of flame, do not produce harmful material in the burning, other metals or electric equipment are not produced corrosion and influence yet.
On industrial production, conductor adopts composite insulation layer outward, be convenient to produce, and economical with materials, and also product structure simplifies very much, and batch process needn't drop into the cost of equipment of great number and huge labour, thereby saves cost.This kind frame mode has been stablized the impedance index, has improved impedance stability, and it is little to decay, and transmission performance is good, has improved the performance of anti-electromagnetic interference and electromagnetic radiation, guarantees that the high-speed transfer signal is steady and audible.The low-smoke non-halogen flame-retardant environment-friendly materials that can alleviate cable weight have further compressed the physical dimension of cable simultaneously as cable cover(ing), and line directly has only original with 1/2 of purposes cable, makes the miniaturization of cable, microminiaturization become possibility.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1, a kind of coaxial cable for ultramicro signal transmission is made of stranding layer and sheath, it is characterized in that, the stranding layer comprises one or more coaxial inner conductor, each cored wire conductor has insulating barrier outward, the outer screen of forming by the tinned copper wire braiding of its insulating barrier, and its screen has the low smoke and zero halogen inner sheath outward; One or more coaxial inner conductor stranding layer outer wrapping polyester film, polyester film has the low smoke and zero halogen oversheath outward.
2, coaxial cable for ultramicro signal transmission according to claim 1 is characterized in that, described insulating barrier is by the fluoroplastic insulation layer and the polyethylene foamed insulating barrier is compound constitutes.
3, coaxial cable for ultramicro signal transmission according to claim 1 is characterized in that, described heart yearn has 8, divides two-layer hierarchical sequence according to 1+7 to arrange.
Coaxial cable for ultramicro signal transmission according to claim 1 is characterized in that, described inside and outside sheath is an environmental protection low smoke and zero halogen material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201424720U CN201302850Y (en) | 2008-10-17 | 2008-10-17 | Ultramicro coaxial-cable for signal transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201424720U CN201302850Y (en) | 2008-10-17 | 2008-10-17 | Ultramicro coaxial-cable for signal transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302850Y true CN201302850Y (en) | 2009-09-02 |
Family
ID=41086479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201424720U Expired - Fee Related CN201302850Y (en) | 2008-10-17 | 2008-10-17 | Ultramicro coaxial-cable for signal transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302850Y (en) |
-
2008
- 2008-10-17 CN CNU2008201424720U patent/CN201302850Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Shengxintuo Technology Development Co., Ltd. Assignor: Tianjin Yixintong Technology Co., Ltd. Contract record no.: 2010120000058 Denomination of utility model: Coaxial cable for ultramicro signal transmission Granted publication date: 20090902 License type: Exclusive License Record date: 20100510 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20131017 |