CN104183316A - Anti-electromagnetic-interference flexible cable - Google Patents
Anti-electromagnetic-interference flexible cable Download PDFInfo
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- CN104183316A CN104183316A CN201410416622.2A CN201410416622A CN104183316A CN 104183316 A CN104183316 A CN 104183316A CN 201410416622 A CN201410416622 A CN 201410416622A CN 104183316 A CN104183316 A CN 104183316A
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Abstract
The invention discloses an anti-electromagnetic-interference flexible cable which comprises a plurality of wire cores. Each wire core comprises a conductor and an insulating layer wrapping the conductor. The wire cores are arranged in parallel, and cable cores composed of filler are arranged in arrangement gaps of the wire cores. A cable core isolation belt, an electromagnetic shielding layer formed by braiding annealed copper wires, a shielding isolation layer and an outer sheath are wrapped on the cable cores in sequence from inside to outside. According to the anti-electromagnetic-interference flexible cable, the electromagnetic shielding layer formed by braiding the annealed copper wires and the shielding isolation layer have very good anti-electromagnetic-interference performance and effectively increase the shielding suppression coefficient, so the anti-electromagnetic-interference flexible cable can be applied to various mobile electrical devices in an environment with complex electromagnetic wave interference, resist interference from external electromagnetic waves, guarantee the safety, stability and reliability of various current signals in transmission without causing distortion, and effectively protect safe operation of the electrical devices at the same time.
Description
Technical field
The present invention relates to cable technology field, especially, relate to a kind of anti-electromagnetic interference flexible cable.
Background technology
Shielding is exactly to carrying out the isolation of metal between two area of space, to control induction and the radiation to another region by a region of electric field, magnetic field and electromagnetic wave.Specifically, with shield, the interference source of component, circuit, sub-assembly, cable or whole system is surrounded exactly, prevents that interfere with electromagnetic field is to outdiffusion; Receiving circuit, equipment or system are surrounded with shield, prevent that they are subject to the impact of external electromagnetic field.Because shield all plays and absorbs energy (eddy current loss), reflected energy (boundary reflection of electromagnetic wave on shield) and counteracting energy (electromagnetic induction produces reverse electromagnetic field on screen the interference electromagnetic wave from outsides such as wire, cable, component, circuit or systems and internal electrical magnetic wave, can offset part and disturb electromagnetic wave) effect, so shield has the function that weakens interference.
In the time that the frequency of interfere with electromagnetic field is higher, utilize the eddy current producing in the metal material of low-resistivity, form and externally carry out electromagnetic negative function, thereby reach the effect of shielding; When disturbing electromagnetic frequency when lower, adopt the material of high permeability, thereby make the magnetic line of force be limited in shield inside, prevent that the space that is diffused into shielding from going; Under some occasion, if while requiring high and low frequency electromagnetic field all to there is good shield effectiveness, often adopt different metal material composition multilayer screen bodies.
450/750V in JB/T 8735 and GB/T 5013 General rubber sleeve cables and following mobile class rubber insulation and jacketed cable, be applicable to various movably electric equipments, electric tool, instrument and household appliance and be used as power line.Such cable adopts thin copper wire multiply bundle to close, be twisted into again after conductor, extrudes rubber insulation layer, after sulfuration, multicore twisted synthesizing cable, then extrude sheath, sulfuration forms.
At present; all kinds of mobile electrical equipment under the complicated interference environment of electromagnetic wave; require cable used in running to there is the interference of resisting external electromagnetic ripple; ensure the various current signal safety and stablization of transmission and reliably and not produce distortion, the safe operation of protective device equipment effectively simultaneously.
And existing General rubber sleeve cable comprises rubber insulation and the use of jacketed cable in this occasion, structure does not have the function of electromagnetic isolation or shielding, thereby can not ensure the safe operation of this electrical equipment, the functional requirement that existing market possesses anti-electromagnetic interference to cable increases increasingly, and its development prospect is very extensive.
Summary of the invention
The object of the invention is to provide a kind of anti-electromagnetic interference flexible cable, does not possess the function of electromagnetic isolation or shielding to solve cable of the prior art, can not ensure the problem of electrical equipment safe operation.
For achieving the above object, the invention provides a kind of anti-electromagnetic interference flexible cable, comprising: some cores, core comprises the insulating barrier of conductor and coating conductor; The setting that some cores are arranged side by side, arranges filler composition cable core in its aligned gaps; On cable core, be coated with successively from inside to outside electro-magnetic screen layer, shielding separator and the oversheath of cable core isolation strip, annealing proof copper-wire braided.
Further, conductor is that some strand bundles close structure or the some strand Shu Hefu structure that tangles, and the twisted wire direction of strand is identical with the twisted wire direction of multiple strand.
Further, insulating barrier is XLPE(Crosslinked Polyethylene, crosslinked polyethylene) insulating barrier of material.
Further, the count of electro-magnetic screen layer is not less than 80%.
Further, shielding separator is thermoplasticity EVA(Ethylene-vinyl Acetate Copo, ethylene-vinyl acetate copolymer) the shielding separator of semiconductive shieldin material.
Further, oversheath is PVC(Polyvinyl chloride polymer, polyvinyl chloride) oversheath.
The present invention has following beneficial effect:
In anti-electromagnetic interference flexible cable of the present invention; the annealing electro-magnetic screen layer of proof copper-wire braided and the shielding separator of thermoplasticity EVA semiconductive shieldin material; there is good anti-electromagnetic interference performance; effectively improve shielding rejection coefficient; can under the complicated environment disturbing of electromagnetic wave, be applied to all kinds of mobile electrical equipment; can resist the interference of external electromagnetic ripple; ensure the various current signals safety, stable and reliable of transmission; and do not produce distortion, the safe operation of protective device equipment effectively simultaneously.
Brief description of the drawings
Below with reference to figure, the present invention is further detailed explanation.The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the anti-electromagnetic interference flexible cable of the present invention preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
Refer to Fig. 1, the preferred embodiments of the present invention provide a kind of anti-electromagnetic interference flexible cable, comprising: some cores, and core comprises the insulating barrier 2 of conductor 1 and coating conductor 1; The setting that some cores are arranged side by side, arranges filler 3,4 composition cable cores in its aligned gaps; On cable core, be coated with successively from inside to outside cable core isolation strip 5, the electro-magnetic screen layer 6 of annealing proof copper-wire braided, shielding separator 7 and the oversheath 8 of thermoplasticity EVA semiconductive shieldin material.
In anti-electromagnetic interference flexible cable of the present invention; the electro-magnetic screen layer 6 of annealing proof copper-wire braided and the shielding separator 7 of thermoplasticity EVA semiconductive shieldin material; there is good anti-electromagnetic interference performance; effectively improve shielding rejection coefficient; can under the complicated environment disturbing of electromagnetic wave, be applied to all kinds of mobile electrical equipment; can resist the interference of external electromagnetic ripple; ensure the various current signals safety, stable and reliable of transmission; and do not produce distortion, the safe operation of protective device equipment effectively simultaneously.
Preferably, conductor 1 closes structure or the some strand Shu Hefu structure that tangles for some strand bundles, for the direct Shu Hecheng conductor 1 of conductor material of small bore, wants first Shu Hehou be twisted into again conductor for the conductor material of larger cross-section.The twisted wire direction of strand is identical with the twisted wire direction of multiple strand.Adopt this structure to have advantages of comparatively outstanding, each strand of the conductor 1 of stranded formation, the slipping property of each interlayer are good, can effectively ensure that the deformation that cable produces in bending and twist process very easily recovers.
The conductor 1 of the cable in the present embodiment in process of production, passes through wire drawing, annealing, Shu He, stranded formation.The wire drawing of copper single line is by completing on wire drawing machine, and annealing completes on tubular annealing unit, and the bundle of conductor 1 is combined on bunching machine and completes, and strand system by implementing on cage stranding machine.
Preferably, insulating barrier 2 is the insulating barrier of XLPE material.Insulating barrier 2 adopts XLPE material, completes insulation and extrudes, and form through warm water crosslinking on plastic extruding machine.The insulating barrier of XLPE material is very easily distortion at high temperature, forms a kind of network structure.Even if this structure at high temperature has very strong non-deformability too.Insulating barrier 2 adopts XLPE material can ensure that cable has good flexibility and non-deformability.
Insulating barrier 2, filler 3,4 complete the cable core that stranded and wrapped cable core isolation strip 5 forms cable on cabler.
Electro-magnetic screen layer 6 adopts annealed copper silk on braiding machine, to complete braid shielded.For ensureing the shield effectiveness of electro-magnetic screen layer 6, the count of electro-magnetic screen layer is not less than 80%.
The shielding separator 7 of thermoplasticity EVA semiconductive shieldin material completes and extrudes on plastic extruding machine.Oversheath 8 adopts soft type PVC protective cover material, completes extruding of sheath on plastic extruding machine.The features such as PVC material has good chemical stability, corrosion resistance, antiultraviolet (ageing-resistant), fire resistant flame retardant (having self-extinguishment), insulation property are reliable, any surface finish is smooth, do not absorb water, indeformable, easy processing.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
In anti-electromagnetic interference flexible cable of the present invention; the electro-magnetic screen layer 6 of annealing proof copper-wire braided and the shielding separator 7 of thermoplasticity EVA semiconductive shieldin material; there is good anti-electromagnetic interference performance; effectively improve shielding rejection coefficient; can under the complicated environment disturbing of electromagnetic wave, be applied to all kinds of mobile electrical equipment; can resist the interference of external electromagnetic ripple; ensure the various current signals safety, stable and reliable of transmission; and do not produce distortion, the safe operation of protective device equipment effectively simultaneously.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention; For a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. an anti-electromagnetic interference flexible cable, is characterized in that, comprising:
Some cores, described core comprises conductor and the insulating barrier that is coated described conductor; The setting arranged side by side of some described cores, arranges filler composition cable core in its aligned gaps; On described cable core, be coated with successively from inside to outside electro-magnetic screen layer, shielding separator and the oversheath of cable core isolation strip, annealing proof copper-wire braided.
2. anti-electromagnetic interference flexible cable according to claim 1, is characterized in that:
Described conductor is that some strand bundles close structure or the some strand Shu Hefu structure that tangles, and the twisted wire direction of described strand is identical with the twisted wire direction of described multiple strand.
3. anti-electromagnetic interference flexible cable according to claim 1, is characterized in that:
Described insulating barrier is the insulating barrier of XLPE material.
4. anti-electromagnetic interference flexible cable according to claim 1, is characterized in that:
The count of described electro-magnetic screen layer is not less than 80%.
5. anti-electromagnetic interference flexible cable according to claim 1, is characterized in that:
Described shielding separator is the shielding separator of thermoplasticity EVA semiconductive shieldin material.
6. anti-electromagnetic interference flexible cable according to claim 1, is characterized in that:
Described oversheath is the oversheath of PVC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416622.2A CN104183316A (en) | 2014-08-22 | 2014-08-22 | Anti-electromagnetic-interference flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416622.2A CN104183316A (en) | 2014-08-22 | 2014-08-22 | Anti-electromagnetic-interference flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104183316A true CN104183316A (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410416622.2A Pending CN104183316A (en) | 2014-08-22 | 2014-08-22 | Anti-electromagnetic-interference flexible cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN104183316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409416A (en) * | 2016-10-25 | 2017-02-15 | 杭州知加网络科技有限公司 | High-flame retardancy fire-resistance low-smoke halogen-free cable wire and manufacturing process thereof |
| CN109872842A (en) * | 2019-04-19 | 2019-06-11 | 远东电缆有限公司 | A kind of airport charging of wisdom energy winds flexible cable and its production technology with intermediate frequency |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095643A (en) * | 1959-02-27 | 1963-07-02 | Submarine Cables Ltd | Method of manufacturing submarine cables |
| CN201489857U (en) * | 2009-08-14 | 2010-05-26 | 安徽蓝德集团股份有限公司 | Metal braided shielding armoured control cable |
| CN201749706U (en) * | 2010-05-05 | 2011-02-16 | 深圳市联嘉祥科技股份有限公司 | Semiconductive EVA plastic screening flexible cable |
| CN203300261U (en) * | 2013-05-17 | 2013-11-20 | 宁波日月电线电缆制造有限公司 | Special cable of variable-frequency system |
| CN204066807U (en) * | 2014-08-22 | 2014-12-31 | 江苏天地龙电缆有限公司 | Electromagnetism interference flexible cable |
-
2014
- 2014-08-22 CN CN201410416622.2A patent/CN104183316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095643A (en) * | 1959-02-27 | 1963-07-02 | Submarine Cables Ltd | Method of manufacturing submarine cables |
| CN201489857U (en) * | 2009-08-14 | 2010-05-26 | 安徽蓝德集团股份有限公司 | Metal braided shielding armoured control cable |
| CN201749706U (en) * | 2010-05-05 | 2011-02-16 | 深圳市联嘉祥科技股份有限公司 | Semiconductive EVA plastic screening flexible cable |
| CN203300261U (en) * | 2013-05-17 | 2013-11-20 | 宁波日月电线电缆制造有限公司 | Special cable of variable-frequency system |
| CN204066807U (en) * | 2014-08-22 | 2014-12-31 | 江苏天地龙电缆有限公司 | Electromagnetism interference flexible cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409416A (en) * | 2016-10-25 | 2017-02-15 | 杭州知加网络科技有限公司 | High-flame retardancy fire-resistance low-smoke halogen-free cable wire and manufacturing process thereof |
| CN109872842A (en) * | 2019-04-19 | 2019-06-11 | 远东电缆有限公司 | A kind of airport charging of wisdom energy winds flexible cable and its production technology with intermediate frequency |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141203 |