CN208284272U - A kind of light-duty low fluorine evolution aerospace signal cable - Google Patents
A kind of light-duty low fluorine evolution aerospace signal cable Download PDFInfo
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- CN208284272U CN208284272U CN201820871496.3U CN201820871496U CN208284272U CN 208284272 U CN208284272 U CN 208284272U CN 201820871496 U CN201820871496 U CN 201820871496U CN 208284272 U CN208284272 U CN 208284272U
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- low fluorine
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- signal cable
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Abstract
The utility model discloses a kind of light-duty low fluorine to escape aerospace signal cable, comprising: multiply insulated electric conductor, the shielded layer being arranged in outside the multiply insulated electric conductor and the low fluorine being arranged in outside the shielded layer escape cross-linked ethylene tetrafluoroethene restrictive coating；Wherein, the core of the per share insulated electric conductor is formed by the more silver-plated copper alloy conductor strands with silver coating, it is provided with low fluorine evolution cross-linked ethylene tetrafluoroethene inner insulating layer outside the core of the per share insulated electric conductor, low fluorine evolution cross-linked ethylene tetrafluoroethene external insulation layer is additionally provided with outside the inner insulating layer.There is higher reliability when the cable uses product in the airborne electrical equipment of aerospace, can be less since fluorine escapes corrosion to electronic component and equipment, the service life of component is improved, the service life of aerospace vehicle is improved.
Description
Technical field
The utility model relates to technical field of electric power, in particular to a kind of light-duty low fluorine escapes aerospace signal cable.
Background technique
With the rapid development of Aeronautics and Astronautics and defence engineering, to the signal transmission of aerospace airborne equipment
Cable is put forward higher requirements, and cable develops to directions such as high reliability, low fluorine, lightweight, low temperature resistant, high temperature resistants.It is general to pass
The aerospace signal transmission apparatus of system using the fluorine material such as polytetrafluoroethylene (PTFE), cross-linked ethylene tetrafluoroethene, fluoropolymer as
Insulation and sheath material, such small product size is relatively large, and weight ratio is heavier, works in long term high temperature environment, has fluorine gas
It is precipitated, the precipitation of fluorine gas can corrode aerospace equipment and electronic component for a long time, and it is short to will cause aerospace electronic component
Road and open circuit influence the requirement that equipment life is not able to satisfy aerospace high reliability.
Summary of the invention
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of light-duty low fluorine evolution aerospace letter
Number cable.
To achieve the above object, the utility model adopts the technical scheme that
A kind of light-duty low fluorine evolution aerospace signal cable, comprising: multiply insulated electric conductor, setting are insulated in the multiply
Shielded layer outside electric wire and the low fluorine being arranged in outside shielded layer evolution cross-linked ethylene tetrafluoroethene restrictive coating；Wherein, institute
The core for stating per share insulated electric conductor is formed by the more silver-plated copper alloy conductor strands with silver coating, the per share insulated electric conductor
Core outside be provided with low fluorine evolution cross-linked ethylene tetrafluoroethene inner insulating layer, low fluorine ease is additionally provided with outside the inner insulating layer
Cross-linked ethylene tetrafluoroethene external insulation layer out.
Preferably, the silver-plated copper alloy that the silver-plated copper alloy conductor is 19/0.127.
Preferably, the shielded layer is that the flat filament with silver coating weaves.
Preferably, the flat filament is copper wire.
Preferably, the width of the shielded layer be 0.3mm, thickness 0.03mm.
Preferably, the silver coating of the silver-plated copper alloy conductor is greater than 2.0 μ.
Preferably, the core is twisted with one heart in such a way that 1, center, outer layers diffusion are respectively arranged 6 and 12
It closes.
Preferably, the inner insulating layer with a thickness of 0.08mm, the external insulation layer with a thickness of 0.13mm.
Preferably, the quantity of the insulated electric conductor is 4 strands.
Compared with the existing technology, the beneficial effects of the utility model are:
1, low fluorine evolution: since insulation and sheath have been all made of low fluorine cross-linked ethylene tetrafluoroethene so more poly- than traditional fluorine
Close object material has the evolution of less fluoride low molecule after irradiation, and fluoride precipitation can reach less than 20ppm.Product is set to exist
There is higher reliability when using in the airborne electrical equipment of aerospace, it can be less since fluorine is escaped to electronic component and is set
Standby corrosion improves the service life of component, improves the service life of aerospace vehicle.
2, outer diameter is small, light-weight: this aerospace signal cable overall structure uses light-weight design, primary insulation
The thick silver-plated flat proof copper-wire braided knot of double-layer insulating structure and 0.3mm wide/0.03mm of 0.08mm, outer layer insulation 0.13mm insulation
Structure makes product have smaller product outer diameter.10% can be reduced than traditional aerospace outside diameter of cable and weight.
3, shield effectiveness is high: using silver-plated flat copper silk braid shielded structure and designs, can reach product count
100%.There is better shield effectiveness than traditional round copper wire assembling-disassembling.
4, high-low temperature resistant: since internal conductor material and shielding material have been all made of silver-plated layer material, and insulation and sheath
It has been all made of low fluorine cross-linked ethylene tetrafluoroethene, the temperature resistant range high temperature of product is made to can reach 260 DEG C, reachable -100 DEG C of low temperature.
5, good flame resistance: insulation and sheath material use low fluorine cross-linked ethylene tetrafluoroethene material, and such material can expire
Sufficient aircraft certification requirements have the release of lower poisonous gas and lower smoke density.
6, high reliablity: since conductor uses silver-plated copper alloy material, and insulation uses the low fluorine after irradiation and hands over
Bivinyl tetrafluoroethene material has higher tensile strength than common copper conductor material and insulating materials, makes the whole of product
Body reliability greatly improves, and ensure that the reliability of the electrical connection of aerospace harness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the light-duty low fluorine evolution aerospace signal cable of the utility model.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 provides, the light-duty low fluorine evolution aerospace of the utility model is further illustrated
The specific embodiment of signal cable.The light-duty low fluorine evolution aerospace signal cable of the utility model is not limited to following implementation
The description of example.
A kind of light-duty low fluorine evolution aerospace signal cable is provided as shown in Figure 1 comprising: multiply insulated electric conductor
10, the shielded layer 20 being arranged in outside the multiply insulated electric conductor 10 and the low fluorine being arranged in outside the shielded layer 20 evolution crosslinking
Ethylene tetrafluoroethylene restrictive coating 30；Wherein, the core 11 of the per share insulated electric conductor 10 is by the more silver-plated coppers with silver coating
Alloy conductor is twisted, and is provided in low fluorine evolution cross-linked ethylene tetrafluoroethene outside the core 11 of the per share insulated electric conductor 10
Insulating layer 12 is additionally provided with low fluorine evolution cross-linked ethylene tetrafluoroethene external insulation layer 13 outside the inner insulating layer 12.Due to interior
Insulating layer 12, external insulation layer 13 and restrictive coating 30 have been all made of low fluorine cross-linked ethylene tetrafluoroethene so polymerizeing than traditional fluorine
Object material has the evolution of less fluoride low molecule after irradiation, and fluoride precipitation can reach less than 20ppm.Product is set to navigate
There is higher reliability when using in the empty airborne electrical equipment of space flight, it can be less since fluorine is escaped to electronic component and equipment
Corrosion, improve the service life of component, improve the service life of aerospace vehicle.
In the present embodiment, the silver-plated copper alloy that the silver-plated copper alloy conductor is 19/0.127, using silver-plated copper alloy
Structure type can have better antioxygenic property, while guarantee good electric conductivity.
In the present embodiment, the shielded layer 20 is that the flat filament with silver coating weaves, and silver-plated flat filament can reach
To better shield effectiveness, while the weight and thickness of shielded layer can be reduced, flat filament can also improve braiding other than reducing thickness
Density, count is up to 100%.
As a further improvement, the flat filament is copper wire, and copper wire itself has good shielding, in conjunction with silver coating,
So that shield effectiveness is more preferable.
As a kind of preferred embodiment of the present embodiment, the width of the shielded layer is 0.3mm, thickness 0.03mm, such width
Degree and thickness ensure that the density of braiding and reduces the weight of shielded layer.
In the present embodiment, the silver coating of the silver-plated copper alloy conductor is greater than 2.0 μ, this ensure that cable core conductor
Antioxygenic property and electric conductivity.
In the present embodiment, the core carries out in such a way that 1, center, outer layers diffusion are respectively arranged 6 and 12
Concentric stranding, this lay configuration have good tensile property and anti-bending strength.
In the present embodiment, the inner insulating layer with a thickness of 0.08mm, the external insulation layer with a thickness of 0.13mm.
In the present embodiment, the quantity of the insulated electric conductor is 4 strands.
Based on above embodiments, have compared with the existing technology as follows a little:
1, low fluorine evolution: since insulation and sheath have been all made of low fluorine cross-linked ethylene tetrafluoroethene so more poly- than traditional fluorine
Close object material has the evolution of less fluoride low molecule after irradiation, and fluoride precipitation can reach less than 20ppm.Product is set to exist
There is higher reliability when using in the airborne electrical equipment of aerospace, it can be less since fluorine is escaped to electronic component and is set
Standby corrosion improves the service life of component, improves the service life of aerospace vehicle.
2, outer diameter is small, light-weight: this aerospace signal cable overall structure uses light-weight design, primary insulation
The thick silver-plated flat proof copper-wire braided knot of double-layer insulating structure and 0.3mm wide/0.03mm of 0.08mm, outer layer insulation 0.13mm insulation
Structure makes product have smaller product outer diameter.10% can be reduced than traditional aerospace outside diameter of cable and weight.
3, shield effectiveness is high: using silver-plated flat copper silk braid shielded structure and designs, can reach product count
100%.There is better shield effectiveness than traditional round copper wire assembling-disassembling.
4, high-low temperature resistant: since internal conductor material and shielding material have been all made of silver-plated layer material, and insulation and sheath
It has been all made of low fluorine cross-linked ethylene tetrafluoroethene, the temperature resistant range high temperature of product is made to can reach 260 DEG C, reachable -100 DEG C of low temperature.
5, good flame resistance: insulation and sheath material use low fluorine cross-linked ethylene tetrafluoroethene material, and such material can expire
Sufficient aircraft certification requirements have the release of lower poisonous gas and lower smoke density.
6, high reliablity: since conductor uses silver-plated copper alloy material, and insulation uses the low fluorine after irradiation and hands over
Bivinyl tetrafluoroethene material has higher tensile strength than common copper conductor material and insulating materials, makes the whole of product
Body reliability greatly improves, and ensure that the reliability of the electrical connection of aerospace harness.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (9)
1. a kind of light-duty low fluorine escapes aerospace signal cable characterized by comprising multiply insulated electric conductor is arranged in institute
The low fluorine evolution cross-linked ethylene tetrafluoroethene sheath stating the shielded layer outside multiply insulated electric conductor and being arranged in outside the shielded layer
Layer；Wherein, the core of the per share insulated electric conductor is formed by the more silver-plated copper alloy conductor strands with silver coating, described every
It is provided with low fluorine evolution cross-linked ethylene tetrafluoroethene inner insulating layer outside the core of strand insulation electric wire, is also set outside the inner insulating layer
It is equipped with low fluorine evolution cross-linked ethylene tetrafluoroethene external insulation layer.
2. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the silver-plated copper closes
The silver-plated copper alloy that golden conductor is 19/0.127.
3. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the shielded layer is
Flat filament with silver coating weaves.
4. light-duty low fluorine according to claim 3 escapes aerospace signal cable, which is characterized in that the flat filament is copper
Silk.
5. light-duty low fluorine according to claim 4 escapes aerospace signal cable, which is characterized in that the shielded layer
Width is 0.3mm, thickness 0.03mm.
6. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the silver-plated copper closes
The silver coating of golden conductor is greater than 2.0 μ.
7. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the core uses
The mode that 1, center, outer layers diffusion are respectively arranged 6 and 12 carries out concentric stranding.
8. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the inner insulating layer
With a thickness of 0.08mm, the external insulation layer with a thickness of 0.13mm.
9. light-duty low fluorine according to claim 1 escapes aerospace signal cable, which is characterized in that the insulated electric conductor
Quantity be 4 strands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871496.3U CN208284272U (en) | 2018-06-06 | 2018-06-06 | A kind of light-duty low fluorine evolution aerospace signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820871496.3U CN208284272U (en) | 2018-06-06 | 2018-06-06 | A kind of light-duty low fluorine evolution aerospace signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208284272U true CN208284272U (en) | 2018-12-25 |
Family
ID=64705935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820871496.3U Active CN208284272U (en) | 2018-06-06 | 2018-06-06 | A kind of light-duty low fluorine evolution aerospace signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208284272U (en) |
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2018
- 2018-06-06 CN CN201820871496.3U patent/CN208284272U/en active Active
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