CN203300278U - Strong-shielding weak current cable - Google Patents
Strong-shielding weak current cable Download PDFInfo
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- CN203300278U CN203300278U CN2013202814823U CN201320281482U CN203300278U CN 203300278 U CN203300278 U CN 203300278U CN 2013202814823 U CN2013202814823 U CN 2013202814823U CN 201320281482 U CN201320281482 U CN 201320281482U CN 203300278 U CN203300278 U CN 203300278U
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Abstract
The utility model discloses a strong-shielding weak current cable, which comprises two insulation cores. Each insulation core comprises a conductor, a core insulating layer and a phase-splitting shielding layer arranged on the outer side of the core insulating layer. The strong-shielding weak current cable is characterized in that the conductors are formed by twisting a plurality of tin-plating annealed copper wire bundles; and a general shielding layer is wrapped on the outer sides of the two insulation cores. The general shielding layer has a three-layer structure. The inner layer is composed of aluminum magnesium alloy wires. The middle layer is composed of plastic-aluminum composite films. The outer layer is composed of iron nickel alloy belts. A sheath is further arranged on the outer side of the general shielding layer. Preferably, two high-strength steel wires parallel to each other and arranged along the vertical direction of the cable are arranged on the sheath wall thickness central positions. By means of the above-mentioned structural improvement, the strong-shielding weak current cable which can guarantee weak current signal transmission has great strength and significantly reduces electromagnetic interference. The strong-shielding weak current cable with greater strength is not prone to core breaking and electromagnetic interference generation.
Description
Technical field
The utility model belongs to the cable technology field, is specifically related to a kind of strong shielding weak-current cable.
Background technology
Existing power cable adopts multi-core conductor usually, the problems such as this multi-core conductor ubiquity consumptive material is many, coiling poor performance, and, in actual life, applied environment often exists the phenomenon that many different electric wires are worked simultaneously, a lot of electric equipments are arranged simultaneously in operation, these electric equipments and electric wire inevitably can cause radiation in the course of the work, and this radiation meeting causes the signal transmission of weak-current cable to be affected.For this reason, Chinese patent CN201220277856.X discloses a kind of communication weak-current cable, comprises that two thoroughly do away with the edge core, and described insulated wire cores comprises conductor, core insulating barrier and screen, and described screen is arranged on the outside of core insulating barrier; Described two thoroughly do away with edge core outside is coated with outer shielding layer, and the outer shielding layer outside is provided with external insulation layer; Described conductor forms by many wires are stranded.The advantage of this technical scheme has been to adopt the structure with two parallel conductors, core insulating barrier, screen, outer shielding layer and external insulation layer, fail safe and the practicality of communication weak-current cable have effectively been improved, antijamming capability is stronger, no matter under what kind of pernicious environment, all be conducive to the transmission of signal, and itself can not produce and disturb to other circuit.But, also exist one obviously not enough, that is: insufficient strength, easily broken core, be applied to still can produce electromagnetic interference.
The utility model content
The purpose of this utility model is to provide a kind of strong shielding weak-current cable of new construction, and it not only may guarantee the weak electric signal transmission, and intensity is good, can greatly reduce electromagnetic interference.
For realizing this purpose, the technical solution of the utility model is: a kind of strong shielding weak-current cable, comprise that two thoroughly do away with the edge core, described insulated wire cores comprises conductor, core insulating barrier and is arranged on the phase-splitting screen in the outside of core insulating barrier, described conductor adopts some stranded the forming of tin annealed copper wire bundle, described two thoroughly do away with edge core outside is coated with total screen, described total screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is plastic-aluminum combined film, skin is the iron-nickel alloy band, and described total screen outside is provided with sheath.
As preferably, described sheath wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.
As preferably, the synthetic fibers filler is arranged in the space between described core.
As preferably, between described sheath and total screen, be provided with by the wrapped thermal insulation layer that forms of some polymethyl methacrylate silk ribbons.
With respect to prior art, the utility model has adopted the structure with two parallel conductors, core insulating barrier, screen, outer shielding layer and external insulation layer, has effectively improved fail safe and the practicality of communication weak-current cable.adopt simultaneously aluminum-magnesium alloy wire, three layers of composite shielding structure of plastic-aluminum combined film and iron-nickel alloy band, almag is placed on to innermost layer, a little less than utilizing its magnetic, the characteristics that density is little, can not produce interference and effectively alleviate cable weight, and the iron-nickel alloy band is a kind of strong magnetic material, can effectively overcome the interference of high-intensity magnetic field, using plastic-aluminum combined film as in ask that layer can effectively shield on the one hand, also can isolate on the other hand aluminum-magnesium alloy wire and iron-nickel alloy band, prevent that both from producing coupling effect, influence each other and offset magnetic screen, greatly promoted electromagnetic pulse-resisting performance of the present utility model.In addition; filled core adopts the aramid fiber yarn that percentage elongation is little, tensile strength is large, flexible, not combustion-supporting, corrosion-resistant and line density is little; percentage elongation is little, tensile strength is greatly in the situation that cable is stressed; cable has been played to protective effect, guaranteed the transmission quality of cable, be filled in the gap of cable after stranded aramid fiber yarn; improved the pull-off force of cable; the firm structure of cable, transmit cable, more stable quality in special environment.In the wall thickness middle position setting of sheath, by the high-tensile steel wires of two parallel placements, form tension member, help to promote cable intensity, when cable bears larger pulling force, can play correct protective effect to core.
The accompanying drawing explanation
Fig. 1 is the utility model cross-sectional view.
Wherein: 1 is conductor; 2 is the core insulating barrier; 3 is screen; 4 is outer shielding layer; 5 is sheath.
Embodiment
In conjunction with the embodiments the utility model is further illustrated with reference to the accompanying drawings.
As shown in Figure 1, a kind of strong shielding weak-current cable, comprise that two thoroughly do away with the edge core, described insulated wire cores comprises conductor, core insulating barrier and is arranged on the phase-splitting screen in the outside of core insulating barrier, some stranded forming of tin annealed copper wire bundle of described conductor employing, described two thoroughly do away with edge core outside is coated with total screen, described total screen is three-decker, and internal layer is aluminum-magnesium alloy wire, and intermediate layer is plastic-aluminum combined film, skin is the iron-nickel alloy band, and described total screen outside is provided with sheath.Wherein, described sheath wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.The synthetic fibers filler is arranged in the space between described core.Between described sheath and total screen, be provided with by the wrapped thermal insulation layer that forms of some polymethyl methacrylate silk ribbons.
The improvement that the utility model is done mainly for strong shielding weak-current cable structure, the foregoing is only the utility model preferred embodiment, non-so namely limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as with the utility model specification and graphic content, doing, all should be contained in the scope of the claims of the present utility model.
Claims (4)
1. one kind strong shields weak-current cable, comprise that two thoroughly do away with the edge core, described insulated wire cores comprises conductor, core insulating barrier and is arranged on the phase-splitting screen in the outside of core insulating barrier, it is characterized in that: described conductor adopts some stranded the forming of tin annealed copper wire bundle, and described two thoroughly do away with edge core outside is coated with total screen, and described total screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is plastic-aluminum combined film, and skin is the iron-nickel alloy band, and described total screen outside is provided with sheath.
2. strong shielding weak-current cable according to claim 1, is characterized in that, described sheath wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along the cable longitudinal direction.
3. strong shielding weak-current cable according to claim 1, is characterized in that the synthetic fibers filler is arranged in the space between described core.
4. strong shielding weak-current cable according to claim 1, is characterized in that, between described sheath and total screen, is provided with by the wrapped thermal insulation layer that forms of some polymethyl methacrylate silk ribbons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202814823U CN203300278U (en) | 2013-05-21 | 2013-05-21 | Strong-shielding weak current cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202814823U CN203300278U (en) | 2013-05-21 | 2013-05-21 | Strong-shielding weak current cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300278U true CN203300278U (en) | 2013-11-20 |
Family
ID=49576273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202814823U Expired - Fee Related CN203300278U (en) | 2013-05-21 | 2013-05-21 | Strong-shielding weak current cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300278U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074675A (en) * | 2016-11-15 | 2018-05-25 | 天津慧康溢德科技发展有限公司 | A kind of science service network transmission cable |
| CN109065233A (en) * | 2018-07-25 | 2018-12-21 | 河南师范大学 | Rectangular multiply inner shield signal wire |
-
2013
- 2013-05-21 CN CN2013202814823U patent/CN203300278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074675A (en) * | 2016-11-15 | 2018-05-25 | 天津慧康溢德科技发展有限公司 | A kind of science service network transmission cable |
| CN109065233A (en) * | 2018-07-25 | 2018-12-21 | 河南师范大学 | Rectangular multiply inner shield signal wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20150521 |
|
| EXPY | Termination of patent right or utility model |