CN2552141Y - Electromagnetic shielded signal cable - Google Patents
Electromagnetic shielded signal cable Download PDFInfo
- Publication number
- CN2552141Y CN2552141Y CN02220163U CN02220163U CN2552141Y CN 2552141 Y CN2552141 Y CN 2552141Y CN 02220163 U CN02220163 U CN 02220163U CN 02220163 U CN02220163 U CN 02220163U CN 2552141 Y CN2552141 Y CN 2552141Y
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- strip
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- shielding
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Abstract
The utility model relates to the cable technical field for communications on the extreme climate condition of serious electromagnetic interference in the field or frequent-happening thunderbolt in plateau, in particular to a cable technical field in the field of electron and information technique, and comprises a conductor, an insulator, a four-wire group, a metal belt, a shield, an inner liner layer, a protection layer and an external protection layer. The utility model is characterized in that the shield layer adopts the copper plastic belt and directivity silicon strip combined for shielding or adopts aluminium strip vertical wrap and directivity silicon strip and soft magnetic steel strip combined for shielding. By choosing the magnetic characteristic of the metal belt in the magnetic layer, the wrapping manner and wrapping layer number, the shield layer is formed by adopting the methods of thin copper strip for winded wrapping and aluminium strip for vertical wrapping to screen the electric field. Synchronously, the utility model realizes the good screening of the magnetic field by adopting good-qualified directivity silicon strip instead of the common electromagnetic steel strip.
Description
Technical field
The utility model relates to the serious or plateau thunder and lightning of open-air electromagnetic interference and takes place frequently and wait extreme weather conditions time to use the communication cable technical field, relates in particular to electron and information technology field cable technical field.
Background technology
Since aluminium sheath shielded type cable invention in 1958, level and smooth aluminium sheath and corrugated aluminum sheath shielded type cable become the mainstream product of electromagnetic shielded cable, are bearing the electromagnetic shielding task of wire communication line.
Rapid rising along with energy demand, the new construction of line is on the increase, the ultrahigh voltage power transmission constantly is used, and the Mission Day of the anti-electromagnetic interference of china railway and other commercial signal communication systems is heavy increasingly, and people require further to improve the anti-electromagnetic interference performance of data transfer signal class cable.In addition, the open-air bad weather in the highlands, lithosphere area cable grounding is difficulty very; Thunder and lightning takes place frequently the induced voltage height in the rainforest area.The anti-electromagnetic interference performance of normal signal cable is not competent, perhaps must spend big strength to carry out the processing of good ground connection.
Technical scheme
The utility model is in order to provide a kind of above-mentioned defective that overcomes, the bigger or regional novel anti-electromagnetic interference signal cable that also has good shielding properties of high induction voltage at earth resistance.The utility model comprises conductor, insulation, quad, metal tape shielding, inner covering, protective layer and outer jacket, it is characterized in that screen adopts copper to mould band and shields or adopt the vertical bag of aluminium strip and directivity silicon strip, soft magnetism steel-tape armouring to make up shielding with the combination of directivity silicon strip armouring.
Conductor adopts the copper conductor of GB/T3956 regulation; Electrical insulation properties excellence, low-loss polythene material are adopted in insulation; Stranding adopts star quad stranding formula quad stranding unit, concentric-type cabling, and adopt that high-intensity polyester belt is wrapped to be tightened; Sheath adopts the anti-best polythene material of steam permeability to do outer jacket.
Magnetic properties, coating mode and the coating number of plies of the utility model by selecting the magnetosphere metal tape, the screen that adopts methods such as thin copper belt is wrapped, the vertical bag of aluminium strip to constitute comes electric field shielding, adopts high-quality directivity silicon strip to substitute common soft electromagnetism steel band simultaneously and realizes the good shielding in magnetic field.
Description of drawings
Accompanying drawing 1 is the utility model A type electromagnetic shielding signal cable, and 1 is conductor, the 2nd among the figure, insulation, the 3rd, and quad, the 4th, metal tape, the 5th, copper are moulded band shielding, the 6th, inner covering, the 7th, directivity steel band, the 8th, protective layer, the 9th, outer jacket.
Accompanying drawing 2 is the utility model Type B electromagnetic shielding signal cable.
10 is mild steel steel bands among the figure.
Specific embodiments
The utility model comprises conductor insulation, quad, metal tape, shielding, inner covering, steel-tape armouring, protective layer, external protection, the utility model A type embodiment: comprise being followed successively by conductor 1, insulation 2, quad 3, metal tape 4, shielding 5, inner covering 6, directivity carbon steel band 7, protective layer 8 and outer jacket 9 from the inside to surface.Shielding 5, inner covering 6 and directivity carbon steel band 7 armourings are combined into screen.Type B embodiment: comprise conductor 1, insulation 2, quad 3, metal tape 4, shielding 5, inner covering 6, directivity carbon steel band 7, protective layer 8, outer jacket 9 and mild steel steel band 10 from the inside to surface successively.Shielding 5, inner covering 6, directivity carbon steel band and mild steel steel band 10 armourings are combined into screen.
Claims (2)
1, a kind of novel electromagnetic shielding signal cable; it comprises conductor, insulation, quad, metal tape, shielding, inner covering, protective layer and outer jacket, it is characterized in that screen adopts copper to mould band and shields or adopt the vertical bag of aluminium strip and directivity silicon strip, soft magnetism steel-tape armouring to make up shielding with the combination of directivity silicon strip armouring.
2, electromagnet screen signal cable according to claim 1 is characterised in that conductor adopts the copper conductor of GB/T3956 regulation; Electrical insulation properties excellence, low-loss polythene material are adopted in insulation; Stranding adopts star quad stranding formula quad stranding unit, concentric-type cabling, and adopt that high-intensity polyester belt is wrapped to be tightened; Sheath adopts the anti-best polythene material of steam permeability to do outer jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220163U CN2552141Y (en) | 2002-04-22 | 2002-04-22 | Electromagnetic shielded signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02220163U CN2552141Y (en) | 2002-04-22 | 2002-04-22 | Electromagnetic shielded signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2552141Y true CN2552141Y (en) | 2003-05-21 |
Family
ID=33698511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02220163U Expired - Fee Related CN2552141Y (en) | 2002-04-22 | 2002-04-22 | Electromagnetic shielded signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2552141Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866715A (en) * | 2009-04-14 | 2010-10-20 | 英帕可有限公司 | The flexible flat cable that is used for the reduction EMI of LVDS |
| CN103646687A (en) * | 2013-12-24 | 2014-03-19 | 中天日立射频电缆有限公司 | Multi-composite rail transit communication signal cable with high electromagnetic shielding |
| CN103871555A (en) * | 2014-02-25 | 2014-06-18 | 安徽华成电缆有限公司 | Multi-core conductor shield cable |
| CN104392792A (en) * | 2014-11-26 | 2015-03-04 | 无锡江南电缆有限公司 | Waterproof cable with control cable core at center |
-
2002
- 2002-04-22 CN CN02220163U patent/CN2552141Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866715A (en) * | 2009-04-14 | 2010-10-20 | 英帕可有限公司 | The flexible flat cable that is used for the reduction EMI of LVDS |
| CN103646687A (en) * | 2013-12-24 | 2014-03-19 | 中天日立射频电缆有限公司 | Multi-composite rail transit communication signal cable with high electromagnetic shielding |
| CN103646687B (en) * | 2013-12-24 | 2016-09-21 | 中天日立射频电缆有限公司 | Many compound high electromagnetic shielding track traffic communicaton and signal cables |
| CN103871555A (en) * | 2014-02-25 | 2014-06-18 | 安徽华成电缆有限公司 | Multi-core conductor shield cable |
| CN104392792A (en) * | 2014-11-26 | 2015-03-04 | 无锡江南电缆有限公司 | Waterproof cable with control cable core at center |
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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: 20030521 Termination date: 20100422 |