CN202720960U - Flexible high-frequency digital cable - Google Patents
Flexible high-frequency digital cable Download PDFInfo
- Publication number
- CN202720960U CN202720960U CN 201220392115 CN201220392115U CN202720960U CN 202720960 U CN202720960 U CN 202720960U CN 201220392115 CN201220392115 CN 201220392115 CN 201220392115 U CN201220392115 U CN 201220392115U CN 202720960 U CN202720960 U CN 202720960U
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- digital cable
- conductor
- layer
- wire
- frequency digital
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Abstract
The utility model discloses a flexible high-frequency digital cable. The cable comprises 6 conductor single wires. The two of the 6 conductor single wires are intertwisted with each other so that the 6 conductor single wires form three groups of twisted wire pairs. The conductor single wire is formed by 7 lead filaments which are intertwisted with each other. The lead filament is formed by a steel wire located at the center and a copper layer located on an outer surface. The outer surface of the twisted wire pairs is wrapped with an insulating layer. An outer sheath layer wraps an outer side of the three groups of the twisted wire pairs. A diameter of the lead filament is 0.16mm-0.2mm. The outer sheath layer is a polyethylene layer or a polyvinyl chloride layer. The high-frequency digital cable of the utility model forms a new conductor structure possessing a characteristic which is the same as a pure copper conductor transmission characteristic, is applied in a digital cable and is used to transmit an electrical signal. A product satisfies transmission performance of the digital cable. The good flexibility performance is possessed. Product cost is greatly reduced. Considerable economic benefits and social benefits are possessed.
Description
Technical field
The utility model relates to the transmission conductor field of telecommunication cable, is specifically related to a kind of high-frequency digital cable of flexibility.
Background technology
The existing conductor of conventional digital cable is pure cu conductor, through the oxygen-free copper bar of up-drawing method fabrication process or through the low-oxygen copper pole of continuous casting and rolling fabrication process by 1# electrolysis copper coin, after large, medium and small all kinds of wire drawing machinees draw, anneal, become the copper conductor of digital cable, this copper conductor requires copper content more than 99.95%.
As everyone knows, because the existence of kelvin effect phenomenon, trend towards material outer surface transmission along the line during electric signal transmission, this electric current concentrates on the phenomenon that conductive line surfaces flows in high-frequency circuit, along with the higher kelvin effect phenomenon of frequency is more serious, kelvin effect is at 60 μ m thick-layer faces during such as transmission frequency 1MHz, and skin effect is at 3.0 μ m thick-layer faces during the 500MHz collection, kelvin effect is at 2.1 μ m thick-layer faces during 1GHz, and kelvin effect is at 0.7 μ m thick-layer face during 10GHz.
Summary of the invention
The utility model purpose provides a kind of high-frequency digital cable of flexibility, this high-frequency digital cable forms has the new conductor structure that is equal to the pure cu conductor transmission feature, be applied to conducting electrical signals in the digital cable, product satisfies the transmission performance of digital cable, and has good flexibility performance, product cost reduces greatly, has considerable economic benefit and social benefit.
For achieving the above object, the technical solution adopted in the utility model is: a kind of high-frequency digital cable of flexibility, comprise 6 strands of conductor single lines, thus these 6 strands of conductor single lines stranded three groups of twisted wires pair of forming in twos; Described conductor single line is by 7 bursts of stranded forming of wire, and this wire is comprised of the steel wire that is positioned at the center and the copper layer that is positioned at its outer surface; Described twisted wire is coated with insulating barrier to outer surface, and an external sheath layer is coated on described three groups of twisted wires to the outside.
It is as follows that technique scheme is further improved technical scheme:
1. in the such scheme, described wire diameter is 0.16mm～0.2mm.
2. in the such scheme, described external sheath layer is polyethylene or polyvinyl chloride layer.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The high-frequency digital cable of the utility model flexibility, it utilizes the copper covered steel composite construction, has the advantageous feature such as good, the good electrical property of mechanical and physical performance, low cost of manufacture, is applied to conducting electrical signals in the digital cable, copper plays the effect of conduction weak electric signal, and steel wire is then played a supporting role.Product satisfies the transmission performance of digital cable, and has good flexibility and resistance to bend(ing) energy, and product cost reduces greatly, only has considerable economic benefit and social benefit for 55% of fine copper cost.
Description of drawings
Accompanying drawing 1 is the high-frequency digital cable structural representation of this practical flexibility;
Accompanying drawing 2 is the utility model wire structural representation.
In the above accompanying drawing: 1, conductor single line; 2, twisted wire pair; 3, wire; 31, steel wire; 32, copper layer; 4, insulating barrier; 5, external sheath layer.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of high-frequency digital cable of flexibility, comprise 6 strands of conductor single lines 1, and form three groups of twisted wires to 2 thereby these 6 strands of conductor single lines 1 are stranded in twos; Described conductor single line 1 is by 7 bursts of wire, 3 stranded forming, and this wire 3 is comprised of the steel wire 31 that is positioned at the center and the copper layer 32 that is positioned at its outer surface; Described twisted wire is coated with insulating barrier 4, one external sheath layers 5 to 2 outer surfaces and is coated on described three groups of twisted wires to 2 outsides.
Above-mentioned wire 3 diameters are 0.19mm.
Above-mentioned external sheath layer 5 is the polyvinyl chloride layer.
Production process is as follows:
(1) select the producing steel-in-copper wires meet the demands:
Product operative norm: SJ/T 11411-2010
Range of product size: Φ 0.10mm～1.0mm
The key technical indexes: select soft attitude copper covered steel material, conductance 〉=30%, copper content 〉=10%.
Main technical requirements: copper covered steel material copper layer adopts the smart copper of 99.97% above purity, and copper layer density is high, good conductivity; Realize metallurgical binding between copper layer and steel wire, preferably adaptation is arranged, guarantee not ftracture in the use procedure, good concentricity, tensile strength is higher, percentage elongation is lower; The copper layer along the circumferential direction reaches vertically and is evenly distributed;
(2) adopt strand winder, the copper covered steel wire of 7 gangs of 0.16mm～0.2mm is twisted into cable conductor;
(3) adopt conventional communication cable insulating extrusion apparatus to produce insulated single wire;
(4) insulated single wire forms cable conductor by strand to, stranding operation;
(5) cable core extrudes one deck PE outward or PVC namely finishes the utility model.
Embodiment 2: a kind of high-frequency digital cable of flexibility, comprise 6 strands of conductor single lines 1, and form three groups of twisted wires to 2 thereby these 6 strands of conductor single lines 1 are stranded in twos; Described conductor single line 1 is by 7 bursts of wire, 3 stranded forming, and this wire 3 is comprised of the steel wire 31 that is positioned at the center and the copper layer 32 that is positioned at its outer surface; Described twisted wire is coated with insulating barrier 4, one external sheath layers 5 to 2 outer surfaces and is coated on described three groups of twisted wires to 2 outsides.
Above-mentioned wire 3 diameters are 0.18mm.
Above-mentioned external sheath layer 5 is polyethylene.
Adopt the high-frequency digital cable of the flexibility of above execution mode, it utilizes the copper covered steel composite construction, have the advantageous feature such as good, the good electrical property of mechanical and physical performance, low cost of manufacture, be applied to conducting electrical signals in the digital cable, copper plays the effect of conduction weak electric signal, and steel wire is then played a supporting role.Product satisfies the transmission performance of digital cable, and has good flexibility and resistance to bend(ing) energy, and product cost reduces greatly, only has considerable economic benefit and social benefit for 55% of fine copper cost.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (3)
1. the high-frequency digital cable of a flexibility is characterized in that: comprise 6 strands of conductor single lines (1), these 6 strands of conductor single lines (1) thus strandedly in twos form three groups of twisted wires to (2); Described conductor single line (1) is by stranded the forming of 7 bursts of wire (3), and this wire (3) is comprised of the steel wire that is positioned at the center (31) and the copper layer (32) that is positioned at its outer surface; Described twisted wire is coated with insulating barrier (4) to (2) outer surface, and an external sheath layer (5) is coated on described three groups of twisted wires to (2) outside.
2. high-frequency digital cable according to claim 1, it is characterized in that: described wire (3) diameter is 0.16mm～0.2mm.
3. high-frequency digital cable according to claim 1, it is characterized in that: described external sheath layer (5) is polyethylene or polyvinyl chloride layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392115 CN202720960U (en) | 2012-08-09 | 2012-08-09 | Flexible high-frequency digital cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392115 CN202720960U (en) | 2012-08-09 | 2012-08-09 | Flexible high-frequency digital cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720960U true CN202720960U (en) | 2013-02-06 |
Family
ID=47622774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392115 Expired - Fee Related CN202720960U (en) | 2012-08-09 | 2012-08-09 | Flexible high-frequency digital cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202720960U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783026A (en) * | 2018-07-31 | 2020-02-11 | 住友电气工业株式会社 | Insulated wire and cable |
-
2012
- 2012-08-09 CN CN 201220392115 patent/CN202720960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783026A (en) * | 2018-07-31 | 2020-02-11 | 住友电气工业株式会社 | Insulated wire and cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20130809 |