CN204792175U - A shielding type coaxial cable for high frequency data transmission - Google Patents
A shielding type coaxial cable for high frequency data transmission Download PDFInfo
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- CN204792175U CN204792175U CN201520376872.8U CN201520376872U CN204792175U CN 204792175 U CN204792175 U CN 204792175U CN 201520376872 U CN201520376872 U CN 201520376872U CN 204792175 U CN204792175 U CN 204792175U
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Abstract
The utility model discloses a shielding type coaxial cable for high frequency data transmission, including cable core, shielding layer and oversheath, cable core outside surface goes up the parcel has a shielding layer, and the outer surface coating oversheath of shielding layer, cable core include many transmission signal lines and many electronics lines, and the shielding layer be the three -layer composite structure, and the shielding layer includes aluminium foil layer, steel band layer and copper foil layer, and the steel band layer is cellular texture, and the steel band in situ is equipped with cellular through -hole. Aluminium foil layer and copper foil layer are laminated respectively on the surface of steel band layer both sides, and between aluminium foil layer and the steel band layer, all laminate fixedly between copper foil layer and the steel band layer through the conducting resin, the conducting resin is shen ru filled inside the cellular through -hole. The utility model discloses a shielding type coaxial cable for high frequency data transmission has that the screening ability is strong, stability height, long service life, pliable and tough moderate and characteristics that wear resistance is good.
Description
Technical field
The utility model relates to electric wire field, specifically refers to a kind of shielded type coaxial cable for high frequency data transfer.
Background technology
Along with the development of the high-definition of the miniaturization of the electronic product such as notebook, mobile phone, slimming, LCD liquid crystal display, the data connecting line connecting computer, mobile phone or LCD liquid crystal display not only needs good mechanism performance and electric property, especially data connecting line its comparation and assessment ability under frequent service condition need improve constantly, to extend the useful life of wire rod.At present, conventional steel band armour, aluminium foil, Copper Foil etc. as the polymeric barrier layer materials of routine, even by different layers compound to improve screening ability requirement further.But in Long-Time Service, no matter be independent steel-tape armouring layer, aluminium foil or Copper Foil or its composite construction, all sharply can decline by screening ability in Long-Time Service, its useful life is generally on the low side.For simple aluminium foil or Copper Foil, suppleness is higher, but mechanical strength is general, in addition thinner, in use owing to too to pull or the tight meeting of long-term tension force causes the breakage of screen; For independent steel-tape armouring layer, its mechanical strength is high, but its pliability is poor, and in cable, can not form Continuous Contact conductive shield in local, screening ability is general; For the composite construction of steel-tape armouring layer, aluminium foil and Copper Foil, totally improve the problem be used alone, but also can be completely exposed along with the prolongation of time for the chronicity of screening ability and stability due to the contact compactness of layer and layer.
Utility model content
The purpose of this utility model is to provide a kind of shielded type coaxial cable for high frequency data transfer, meets user's requirement used in everyday, has that screening ability is strong, stability is high, long service life, a pliable and tough moderate and feature that anti-wear performance is good.
The utility model can be achieved through the following technical solutions:
The utility model discloses a kind of shielded type coaxial cable for high frequency data transfer, comprise cable core, screen and oversheath, cable core outer surface is enclosed with screen, the outer surface parcel oversheath of screen, described cable core comprises many transmission signal lines and many electric wires, and described screen is three-layer composite structure, and described screen comprises aluminium foil layer, steel belt layer and copper foil layer, described steel belt layer is alveolate texture, and described steel belt layer inside is provided with cellular through hole.Described aluminium foil layer and described copper foil layer are fitted in the surface of described steel belt layer both sides respectively, all carry out laminating by conducting resinl between described aluminium foil layer and described steel belt layer, between described copper foil layer and described steel belt layer to fix, it is inner that described cellular through hole deeply filled by described conducting resinl.By the three-layer composite structure of aluminium foil layer, steel belt layer and copper foil layer, steel belt layer increases the service life outside outer effect except structurally having mechanical protection such as enhancing tensile strength, compression strength etc., cable interference free performance can also be improved by shielding protection, copper foil layer and aluminium foil layer is fitted with in the both side surface of steel belt layer, copper foil layer and aluminium foil layer energy shield electromagnetic signals are because they constitute closed shielded enclosure with the metal of surrounding, effectively ensure that the effect of shielding; By arranging cellular through-hole structure on steel belt layer, both effectively saving the material of steel belt layer, effectively reducing again steel belt layer hardness excessive on the flexible impact of coaxial cable; By filling or coated with conductive glue between the different layers and between cellular through hole, the adhesion between each layer is stronger, and conductivity can not be affected along with the prolongation of time, and screening ability is lasting.
Described aluminium foil layer is the aluminium foil that surface-coated has carbon film, and described copper foil layer is zinc-plated Copper Foil.By being coated with carbon film at aluminium foil and copper foil surface.By at aluminium foil surface coating carbon film, effectively improve the contact conductive capability of aluminium foil, promote the screening ability of screen further; By selecting zinc-plated Copper Foil as copper foil layer material, effectively avoid the problem that the screening ability caused because Copper Foil is oxidized in Long-Time Service declines.
The described shielded type coaxial cable for high frequency data transfer also comprises packed layer, described packed layer comprises cotton thread and polyester fiber, described polyester fiber is coated on transmission signal line and the space between electronics heart yearn outer surface and screen inner surface, the space of described cotton covered between screen outer surface and oversheath inner surface.Adding of packed layer, effectively improve the bend resistance ability of wire rod from inside, from another angle, it also avoid the problem that steel belt layer adds coaxial cable hardness is partially hard and effectively alleviate, improve the pliability of coaxial cable.
Described aluminium foil layer inside is coated with transmission signal line and electric wire, and described aluminium foil layer is outside for be coated with steel belt layer and copper foil layer successively.By three-layer composite structure, effectively electromagnetic shielding is carried out to transmission signal line and electric wire.
Described electric wire comprises oxygen-free copper conductor and polyethylene insulator, and described polyethylene insulator is coated on the outer surface of oxygen-free copper conductor, has effectively protected oxygen-free copper conductor.
Described transmission signal line comprises two signal transmission heart yearns, a ground wire and metal conductive shield layer, described signal transmission heart yearn and ground wire stranded mutually, described metal conductive shield layer is coated on signal transmission heart yearn stranded mutually and the outer surface of ground wire, further increases the shielding properties of wire rod.
The outer surface of described metal conductive shield layer is also coated with hot melt wheat drawstring, and equidirectional is coated each other for described hot melt wheat drawstring and metal conductive shield layer, simplifies procedure of processing and flow process.
Described oversheath material is PVC or TPE, effectively protects the inside of wire rod.
Shielded type coaxial cable for high frequency data transfer described in the utility model, compared with high frequency data transfer cable traditional at present, has following beneficial effect:
The first, screening ability is strong, by adopting the three-layer composite structure of aluminium foil layer, steel belt layer and copper foil layer, being ensured the Contact continuous conduction shielding of the inner different layers of screen, effectively promote the screening ability of screen between different layers by conducting resinl;
The second, stability is high, carries out laminating fixing between the inner different layers of screen by conducting resinl, in use can not cause owing to pullling cable the impact producing relative displacement or gap between different layers and cause shield effectiveness;
Three, long service life, by arranging the steel belt layer of cellular through-hole structure, make coaxial cable be provided with good mechanical strength basis, realized the integration of different layers by conducting resinl, avoid the inner arbitrary structures layer of screen to be subject to breakage that external force causes affects the useful life of coaxial cable;
Four, soft moderate, by the cellular through-hole structure of the inner employing of steel belt layer, simultaneously at copper foil layer and the Lv Bocheng of steel belt layer two surface laminating softness, ensure that the degree of flexibility of coaxial cable;
Five, anti-wear performance is good, and the oversheath adopting PVC or TPE material to make, owing to having good resistance to wear, and has high-tensile, high elongation rate, the advantage of anti-aging and long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model for the shielded type coaxial cable of high frequency data transfer;
Fig. 2 is the shielding layer structure schematic diagram of the utility model for the shielded type coaxial cable of high frequency data transfer.
Mark in figure comprises: 1, cable core, and 2, screen, 3, oversheath, 4, transmission signal line, 5, electric wire, 6, packed layer, 7, cotton thread, 8, polyester fiber, 9, Copper Foil layer by layer, 10, aluminium foil layer, 11, oxygen-free copper conductor, 12, polyethylene insulator, 13, signal transmission heart yearn, 14, ground wire, 15, metal conductive shield layer, 16, hot melt wheat drawstring, 17, steel belt layer, 18, conducting resinl.
Embodiment
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with embodiment and accompanying drawing, the utility model product is described in further detail.
As shown in Figure 1 and Figure 2, the utility model discloses a kind of shielded type coaxial cable for high frequency data transfer, comprise cable core 1, screen 2 and oversheath 3, cable core 1 outer surface is enclosed with screen 2, the outer surface parcel oversheath 3 of screen 2, described cable core 1 comprises many transmission signal lines 4 and many electric wires 5, described screen 2 is three-layer composite structure, described screen 2 comprises aluminium foil layer 10, steel belt layer 17 and copper foil layer 9, described steel belt layer 17 is alveolate texture, and described steel belt layer 17 inside is provided with cellular through hole.Described aluminium foil layer 10 and described copper foil layer 9 are fitted in the surface of described steel belt layer 17 both sides respectively, all carry out laminating by conducting resinl 18 between described aluminium foil layer 10 and described steel belt layer 17, between described copper foil layer 9 and described steel belt layer 17 to fix, it is inner that described cellular through hole deeply filled by described conducting resinl 18.Described aluminium foil layer 10 has the aluminium foil of carbon for surface-coated, and described copper foil layer 9 has the Copper Foil of carbon for surface-coated.The described shielded type coaxial cable for high frequency data transfer also comprises packed layer 6, described packed layer 6 comprises cotton thread 7 and polyester fiber 8, described polyester fiber 8 is coated on transmission signal line 4 and the space between electronics heart yearn outer surface and screen 2 inner surface, and described cotton thread 7 is coated on the space between screen 2 outer surface and oversheath 3 inner surface.Described aluminium foil layer 10 inside is coated with transmission signal line 4, electric wire 5 and cotton thread 7, and described aluminium foil layer 10 outside is steel belt layer 17 and copper foil layer 9.Described electric wire 5 comprises oxygen-free copper conductor 11 and polyethylene insulator 12, and described polyethylene insulator 12 is coated on the outer surface of oxygen-free copper conductor 11.Described transmission signal line 4 comprises two signal transmission heart yearns, 13, ground wire 14 and metal conductive shield layer 15, described signal transmission heart yearn 13 and ground wire 14 stranded mutually, described metal conductive shield layer 15 is coated on signal transmission heart yearn 13 stranded mutually and the outer surface of ground wire 14.The outer surface of described metal conductive shield layer 15 is also coated with hot melt wheat and draws 16 bands, and described hot melt wheat draws 16 bands and metal conductive shield layer 15, and equidirectional is coated each other.Described oversheath 3 material is PVC or TPE.
The above, be only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the utility model swimmingly; But all those skilled in the art are not departing within the scope of technical solutions of the utility model, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present utility model; Meanwhile, all according to substantial technological of the present utility model to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection range all still belonging to the technical solution of the utility model.
Claims (8)
1. the shielded type coaxial cable for high frequency data transfer, comprise cable core (1), screen (2) and oversheath (3), cable core (1) outer surface is enclosed with screen (2), outer surface parcel oversheath (3) of screen (2), described cable core (1) comprises many transmission signal lines (4) and many electric wires (5), it is characterized in that: described screen (2) is three-layer composite structure, described screen (2) comprises aluminium foil layer (10), steel belt layer (17) and copper foil layer (9), described steel belt layer (17) is alveolate texture, described steel belt layer (17) inside is provided with cellular through hole, described aluminium foil layer (10) and described copper foil layer (9) are fitted in the surface of described steel belt layer (17) both sides respectively, all carry out laminating by conducting resinl (18) between described aluminium foil layer (10) and described steel belt layer (17), between described copper foil layer (9) and described steel belt layer (17) to fix, it is inner that described cellular through hole deeply filled by described conducting resinl (18).
2. the shielded type coaxial cable for high frequency data transfer according to claim 1, is characterized in that: described aluminium foil layer (10) has the aluminium foil of carbon film for surface-coated, and described copper foil layer (9) is zinc-plated Copper Foil.
3. the shielded type coaxial cable for high frequency data transfer according to claim 1 and 2, it is characterized in that: the described shielded type coaxial cable for high frequency data transfer also comprises packed layer (6), described packed layer (6) comprises cotton thread (7) and polyester fiber (8), described polyester fiber (8) is coated on transmission signal line (4) and the space between electronics heart yearn outer surface and screen (2) inner surface, and described cotton thread (7) is coated on the space between screen (2) outer surface and oversheath (3) inner surface.
4. the shielded type coaxial cable for high frequency data transfer according to claim 3, it is characterized in that: described aluminium foil layer (10) inside is coated with transmission signal line (4), electric wire (5) and cotton thread (7), described aluminium foil layer (10) outside is steel belt layer (17) and copper foil layer (9).
5. the shielded type coaxial cable for high frequency data transfer according to claim 4, it is characterized in that: described electric wire (5) comprises oxygen-free copper conductor (11) and polyethylene insulator (12), described polyethylene insulator (12) is coated on the outer surface of oxygen-free copper conductor (11).
6. the shielded type coaxial cable for high frequency data transfer according to claim 5, it is characterized in that: described transmission signal line (4) comprises two signal transmission heart yearns (13), a ground wire (14) and metal conductive shield layer (15), described signal transmission heart yearn (13) and ground wire (14) stranded mutually, described metal conductive shield layer (15) is coated on signal transmission heart yearn (13) stranded mutually and the outer surface of ground wire (14).
7. the shielded type coaxial cable for high frequency data transfer according to claim 6, it is characterized in that: the outer surface of described metal conductive shield layer (15) is also coated with hot melt wheat and draws (16) to be with, described hot melt wheat draws (16) band, and equidirectional is coated each other with metal conductive shield layer (15).
8. the shielded type coaxial cable for high frequency data transfer according to claim 7, is characterized in that: described oversheath (3) material is PVC or TPE.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520376872.8U CN204792175U (en) | 2015-06-03 | 2015-06-03 | A shielding type coaxial cable for high frequency data transmission |
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| CN201520376872.8U CN204792175U (en) | 2015-06-03 | 2015-06-03 | A shielding type coaxial cable for high frequency data transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018647A (en) * | 2017-05-24 | 2017-08-04 | 合肥工业大学 | A kind of multilayer electromagnetic shielding cabinet with special teeth groove, arc-shaped slot structure |
| CN108346482A (en) * | 2018-04-02 | 2018-07-31 | 杭州东兴电讯材料有限公司 | Communication cable environmentally friendly conductive copper aluminum foil shielded material and preparation method thereof |
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2015
- 2015-06-03 CN CN201520376872.8U patent/CN204792175U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107018647A (en) * | 2017-05-24 | 2017-08-04 | 合肥工业大学 | A kind of multilayer electromagnetic shielding cabinet with special teeth groove, arc-shaped slot structure |
| CN107018647B (en) * | 2017-05-24 | 2024-02-13 | 合肥工业大学 | Multilayer electromagnetic shielding cabinet body with special tooth slot and arc clamping groove structure |
| CN108346482A (en) * | 2018-04-02 | 2018-07-31 | 杭州东兴电讯材料有限公司 | Communication cable environmentally friendly conductive copper aluminum foil shielded material and preparation method thereof |
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