CN203689941U - Signal cable used in cabin of spacecraft - Google Patents
Signal cable used in cabin of spacecraft Download PDFInfo
- Publication number
- CN203689941U CN203689941U CN201320639270.8U CN201320639270U CN203689941U CN 203689941 U CN203689941 U CN 203689941U CN 201320639270 U CN201320639270 U CN 201320639270U CN 203689941 U CN203689941 U CN 203689941U
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- CN
- China
- Prior art keywords
- silver
- plated
- signal cable
- cable
- tetrafluoroethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a signal cable used in a cabin of a spacecraft. The signal cable includes a plurality of conductors. Each conductor is coated with an irradiated crosslinked ethylene-tetrafluoroethylene insulating layer to form an insulating wire core. Each conductor is formed by 19 stranded silver-plated flexible copper wires having a diameter of 0.1mm, and the silvering annealed copper wires are twisted into the conductors. The insulation wire cores are twisted into a harness to form a cable core. Nonadjacent two insulating wire cores in the cable core are covered with silver-plated inner shield layers. The cable core is sequentially coated with a silver-plated outer shield layer and an irradiated crosslinked ethylene-tetrafluoroethylene sheath layer. The silver-plated inner shield layers and the silver-plated outer shield layer are all formed by braided silver-plated flexible copper wires having a diameter of 0.1 mm, and have a shield density of no less than 85%. The structure and the design of the signal cable are novel, and the signal cable has the advantages of small size, light weight, high strength, good wearability, chemical resistance, and flame retardancy, low vacuum air leakage, good shield effects, and the like. The signal cable is especially suitable for signal transmission in the cabin of the spacecraft or for other applications.
Description
Technical field:
The utility model relates to electric wire technology, relates in particular in a kind of spacecraft module and uses signal cable.
Background technology:
In recent years, along with the develop rapidly of space technology, also more and more higher to the requirement with signal cable in spacecraft module, the signal normal transmission not only will meet work time, also will design the construction of cable according to the space size in cabin.Only have 4.7mm because of the space of laying of cable, common signal cable external diameter is far longer than this space, cannot meet instructions for use.
Need to design that soft institute designs that a kind of volume is little, lightweight, intensity is high, resistance to wear good, resistance to chemical attack, the high and low vacuum ease of anti-flammability gas, cable that shield effectiveness is good.
Utility model content:
In order to make up prior art problem, the purpose of this utility model is to provide in a kind of spacecraft module with signal cable, reasonable in design, can make the external diameter of cable be less than and lay space, the advantage such as have that volume is little, lightweight, intensity is high, resistance to wear good, resistance to chemical attack, the high and low vacuum ease of anti-flammability gas, shield effectiveness are good.
The technical solution of the utility model is as follows:
In spacecraft module, use signal cable, comprise many conductors, it is characterized in that: many described conductors are all coated with cross-linking radiation ethylene-tetrafluoroethylene insulating barrier outward and form insulated wire cores, the silver-plated soft copper wire harness strand that it is 0.1mm that many conductors all adopt 19 diameters forms, the mutual stranded bunchy of insulated wire cores forms cable core, in cable core, wherein non-conterminous two insulated wire cores are coated with silver-plated internal shield, cable core is coated with silver-plated outer shielding layer outward successively, cross-linking radiation ethylene-tetrafluoroethylene external sheath layer, described silver-plated internal shield, it is the silver-plated annealed copper wire braiding formation of 0.1mm that silver-plated outer shielding layer all adopts diameter, shielding density is not less than 85%.
In described spacecraft module, with signal cable, it is characterized in that: the nominal thickness of described cross-linking radiation ethylene-tetrafluoroethylene insulating barrier is at 0.1～0.2mm.
In described spacecraft module, with signal cable, it is characterized in that: the nominal thickness of described cross-linking radiation ethylene-tetrafluoroethylene external sheath layer is at 0.2～0.3mm.
The utility model has the advantages that:
The features such as the utility model structural design novelty, has that volume is little, lightweight, intensity is high, and mar proof is good, resistance to chemical attack, fire-retardant, low vacuum ease gas, shield effectiveness are good, are specially adapted to signal in spacecraft module and transmit and other occasion.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1:
In spacecraft module, use signal cable, comprise many conductors 1, the many outer cross-linking radiation ethylene-tetrafluoroethylene insulating barriers 2 that are all coated with of conductor 1 form insulated wire cores, the silver-plated soft copper wire harness strand that it is 0.1mm that many conductors all adopt 19 diameters forms, the mutual stranded bunchy of insulated wire cores forms cable core, in cable core, wherein non-conterminous two insulated wire cores are coated with silver-plated internal shield 3, cable core is coated with silver-plated outer shielding layer 4 outward successively, cross-linking radiation ethylene-tetrafluoroethylene external sheath layer 5, silver-plated internal shield 3, it is the silver-plated annealed copper wire braiding formation of 0.1mm that silver-plated outer shielding layer 4 all adopts diameter, shielding density is not less than 85%.
The nominal thickness of cross-linking radiation ethylene-tetrafluoroethylene insulating barrier 2 is at 0.1～0.2mm.
The nominal thickness of cross-linking radiation ethylene-tetrafluoroethylene external sheath layer 5 is at 0.2～0.3mm.
The utility model material therefor and physical dimension:
Conductor: adopt silver-plated annealed copper wire, structure 19/0.1mm;
Insulation: adopt cross-linking radiation XETFE, nominal thickness 0.15mm;
Shielding: adopt the silver-plated annealed copper wire braid shielded of 0.1mm, shielding density is not less than 85%;
Sheath: adopt cross-linking radiation XETFE, sheath nominal thickness 0.25mm;
Maximum outside diameter 4.5mm after cable cabling.
Claims (3)
1. in a spacecraft module, use signal cable, comprise many conductors, it is characterized in that: many described conductors are all coated with cross-linking radiation ethylene-tetrafluoroethylene insulating barrier outward and form insulated wire cores, the silver-plated soft copper wire harness strand that it is 0.1mm that many conductors all adopt 19 diameters forms, the mutual stranded bunchy of insulated wire cores forms cable core, in cable core, wherein non-conterminous two insulated wire cores are coated with silver-plated internal shield, cable core is coated with silver-plated outer shielding layer outward successively, cross-linking radiation ethylene-tetrafluoroethylene external sheath layer, described silver-plated internal shield, it is the silver-plated annealed copper wire braiding formation of 0.1mm that silver-plated outer shielding layer all adopts diameter, shielding density is not less than 85%.
2. in spacecraft module according to claim 1, use signal cable, it is characterized in that: the nominal thickness of described cross-linking radiation ethylene-tetrafluoroethylene insulating barrier is at 0.1～0.2mm.
3. in spacecraft module according to claim 1, use signal cable, it is characterized in that: the nominal thickness of described cross-linking radiation ethylene-tetrafluoroethylene external sheath layer is at 0.2～0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639270.8U CN203689941U (en) | 2013-10-15 | 2013-10-15 | Signal cable used in cabin of spacecraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639270.8U CN203689941U (en) | 2013-10-15 | 2013-10-15 | Signal cable used in cabin of spacecraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689941U true CN203689941U (en) | 2014-07-02 |
Family
ID=51011815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320639270.8U Expired - Fee Related CN203689941U (en) | 2013-10-15 | 2013-10-15 | Signal cable used in cabin of spacecraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203689941U (en) |
-
2013
- 2013-10-15 CN CN201320639270.8U patent/CN203689941U/en not_active Expired - Fee Related
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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: 20140702 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |