CN208507245U - A kind of aerospace shielded cable - Google Patents
A kind of aerospace shielded cable Download PDFInfo
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- CN208507245U CN208507245U CN201820893169.8U CN201820893169U CN208507245U CN 208507245 U CN208507245 U CN 208507245U CN 201820893169 U CN201820893169 U CN 201820893169U CN 208507245 U CN208507245 U CN 208507245U
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- shielded cable
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Abstract
The utility model discloses a kind of aerospace shielded cables, comprising: more have the inner conductor of nickel coating, the cross-linked ethylene tetrafluoroethene insulating layer being arranged in outside the more inner conductors, the shielded layer being arranged in outside the insulating layer and the cross-linked ethylene tetrafluoroethene restrictive coating being arranged in outside the shielded layer；The more inner conductors are twisted by the way of concentric stranding, and the shielded layer is braiding structure.The cable has the characteristics that high slight, high reliablity and high-low temperature resistant.
Description
Technical field
The utility model relates to technical field of electric power, in particular to a kind of aerospace shielded cable.
Background technique
Aerospace industry constant need one kind also can guarantee in harsh environment height reliability, it is light-weight, small in size,
Soft, advantages of good shielding performance and low toxicity cable.So Aircraft Cables designer is finding new material all the time, exploitation is new
Type cable and the configuration for improving whole system performance.What smaller, the lighter cable of volume can reduce cable uses and simplifies wiring,
Electrical and mechanical integrality is realized simultaneously for most challenging application.
The successful maiden voyage of the Chinese domestic single channel jet airliner C919 of first, leads Civil Aviation Industry technological progress
And production efficiency reaches a new stage.Now on the Forecast For Commercial Transport Market being faced with competition, improves production efficiency and reduce and shut down dimension
Repair the task of top priority that the time is planemaker.So to the aerospace cable for undertaking aerospace vehicle central nervous system
Reliability is put forward higher requirements.
General traditional aerospace cable inner conductor uses tinned copper conductor, and shielding uses tinned copper wire and weaves,
Insulation and sheath use the materials such as polytetrafluoroethylene (PTFE), perfluoroethylene-propylene, and such product is in designer's type selecting and subsequent
Aircraft harness process of manufacture often occur the problem that inner conductor is that copper conductor intensity is inadequate, be easily broken off.Conductor is
Tin plating copper product, it is easy to oxidize, influence harness service life.
Summary of the invention
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of aerospace shielded cable.
To achieve the above object, the utility model adopts the technical scheme that
A kind of aerospace shielded cable, comprising: more have the inner conductor of nickel coating, are arranged in the more inner conductors
Outer cross-linked ethylene tetrafluoroethene insulating layer, the shielded layer being arranged in outside the insulating layer and it is arranged outside the shielded layer
Cross-linked ethylene tetrafluoroethene restrictive coating；The more inner conductors are twisted by the way of concentric stranding, and the shielded layer is to compile
Knit structure.
Preferably, the nickel plating copper alloy that the inner conductor is 19/0.1.
Preferably, the shielded layer is that the aramid fiber yarn with silver coating weaves.
Preferably, the count of the shielded layer is greater than 95%.
Preferably, the shielded layer is woven using 16 aramid fiber yarns with silver coating.
Preferably, the shielded layer is using the silver-plated aramid fiber yarn structure braiding of 200D.
Preferably, the insulating layer with a thickness of 0.1-0.2mm.
Preferably, the insulating layer with a thickness of 0.15mm.
Compared with the existing technology, the beneficial effects of the utility model are:
1, high slight, since conductor uses high-strength alloy (nickel plating copper alloy) inner conductor 1, it is strong that braiding uses superelevation
Silver-plated aramid fiber yarn is spent so greatly improving the tensile strength of product, and aircraft designer can choose small section in type selecting
Product be that can reach the requirement of intensity, thus greatly reduce product design weight.
2, light-weight, make the overall weight of shielded layer 3 that can reduce by 80% using the braiding of silver-plated aramid fiber, greatly reduces
The weight of product.The cross-linked ethylene tetrafluoroethene insulating layer and restrictive coating its density of material selected simultaneously are generally 1.7g/
Cm3 is the material that density is most light in fluorine material, is further improved slight.
3, flexible, keep shielded layer 3 more soft than traditional tincopper fuse wire braided armor using the braiding of silver-plated aramid fiber,
Plasticity is more preferable.
4, high-low temperature resistant, since 1 material of inner conductor uses nickel plating layer material, shielded layer 3 uses silver plated fiber material,
And insulation and sheath have been all made of cross-linking radiation ethylene tetrafluoroethylene, and the temperature resistant range high temperature of product is made to can reach 200 DEG C, it is low
Reachable -100 DEG C of of temperature
5, high reliablity, since conductor uses high strength alloy material (nickel plating copper alloy), shielded layer uses superelevation
Strength fiber material (aramid fiber yarn) greatly proposes the stretching resistance performance of product, though product under the action of a fixed load,
It can still guarantee the continuity of product, to 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 utility model aerospace shielded cable.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 provides, the tool of the aerospace shielded cable of the utility model is further illustrated
Body embodiment.The aerospace shielded cable of the utility model is not limited to the following description.
A kind of aerospace shielded cable is provided as shown in Figure 1 comprising: more have the inner conductor 1 of nickel coating, set
Set the cross-linked ethylene tetrafluoroethene insulating layer 2 outside the more inner conductors 1, the shielded layer 3 being arranged in outside the insulating layer 2,
And the cross-linked ethylene tetrafluoroethene restrictive coating 4 outside the shielded layer 3 is set；The more inner conductors 1 use concentric stranding
Mode it is twisted, the shielded layer 3 is braiding structure.
In the present embodiment, the nickel plating copper alloy that the inner conductor 1 is 19/0.1, the nickel plating copper alloy is slightly high, intensity
Also high, intensity can be good at the tensile strength for guaranteeing conductor up to 485Mpa, and nickel coating can guarantee conductors against oxidation
With high and low temperature environment requirement.
In the present embodiment, the shielded layer 3 is that the aramid fiber yarn with silver coating weaves.Silver-plated aramid fiber yarn braiding layer
Count, which can reach, weaves identical density with tin plating round copper wire, plays same shield effectiveness, but the entirety weight of shielded layer
Amount can reduce by 80%, and the weight of product greatly reduces.Silver-plated aramid fiber yarn has superhigh intensity reachable at the same time
2000Mpa, and braiding layer softness is far longer than tincopper fuse wire braided armor.
It is further improved as the present embodiment, the count of the shielded layer 3 is greater than 95%, and the shielded layer uses 16
There is root the aramid fiber yarn of silver coating to weave, and make the shield effectiveness of shielded layer 3 better more than 95% count, using 16
Aramid fiber yarn is woven, so that the density of braiding is guaranteed, braiding softness is more preferable.
As a kind of specific embodiment, the shielded layer 3, in this way can be with using the silver-plated aramid fiber yarn structure braiding of 200D
The thickness for advanced optimizing shielded layer makes it compared with can guarantee enough intensity and shield effectiveness under low thickness.
In the present embodiment, the insulating layer 2 with a thickness of 0.1-0.2mm, as a kind of preferred structure, the insulating layer
2 with a thickness of 0.15mm.
Since conductor uses high-strength alloy (nickel plating copper alloy) inner conductor 1, braiding uses the silver-plated virtue of superhigh intensity
For synthetic fibre silk so greatly improving the tensile strength of product, aircraft designer can choose the product in small section in type selecting i.e.
The requirement that can reach intensity thus greatly reduces product design weight.
In addition, making the overall weight of shielded layer 3 that can reduce by 80% using the braiding of silver-plated aramid fiber, production greatly reduces
The weight of product.The cross-linked ethylene tetrafluoroethene insulating layer and restrictive coating its density of material selected simultaneously are generally 1.7g/cm3, are
The most light material of density in fluorine material further improves slight.
Keep shielded layer 3 more soft than traditional tincopper fuse wire braided armor using the braiding of silver-plated aramid fiber, plasticity is more
It is good.
Due to 1 material of inner conductor use nickel plating layer material, shielded layer 3 use silver plated fiber material, and insulation and
Sheath has been all made of cross-linking radiation ethylene tetrafluoroethylene, so that the temperature resistant range high temperature of product is can reach 200 DEG C, low temperature reachable -100
℃.
Since conductor uses high strength alloy material (nickel plating copper alloy), shielded layer uses superhigh intensity fibrous material
(aramid fiber yarn) greatly proposes the stretching resistance performance of product, even if product under the action of a fixed load, can still guarantee
The continuity of product, to ensure that the reliability of the electrical connection of aerospace harness.
The aerospace shielded cable of the utility model can manufacture to obtain by following technical process:
Being twisted nickel plating copper alloy with electric wire cable wire twisting machine is inner conductor 1, and the preparation process of conductor, which need to use, presses mold
Design, to realize the roundness and outer diameter of conductor.Cross-linked ethylene tetrafluoroethene is squeezed out in 1 external application fluoroplastics extrusion equipment of inner conductor
Then insulating layer 2 selects suitable irradiation dose to be irradiated, in cross-linked ethylene tetrafluoroethene insulating layer by electron accelerator
2 outsides have the aramid fiber yarn of silver coating using the braiding of 16 ingot low speed fibrage machines, are cross-woven and constitute shielded layer 3, are shielding
3 external application fluoroplastics extrusion equipment of layer squeeze out cross-linked ethylene tetrafluoroethene restrictive coating 4, and it is suitable then to select using electron accelerator
Irradiation dose irradiated.
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 (8)
1. a kind of aerospace shielded cable characterized by comprising more have the inner conductor of nickel coating, are arranged described
Cross-linked ethylene tetrafluoroethene insulating layer outside more inner conductors, the shielded layer being arranged in outside the insulating layer and it is arranged in institute
State the cross-linked ethylene tetrafluoroethene restrictive coating outside shielded layer；The more inner conductors are twisted by the way of concentric stranding, described
Shielded layer is braiding structure.
2. aerospace shielded cable according to claim 1, which is characterized in that the nickel plating that the inner conductor is 19/0.1
Copper alloy.
3. aerospace shielded cable according to claim 1, which is characterized in that the shielded layer is with silver coating
Aramid fiber yarn weaves.
4. aerospace shielded cable according to claim 3, which is characterized in that the count of the shielded layer is greater than
95%.
5. aerospace shielded cable according to claim 3, which is characterized in that the shielded layer has plating using 16
The aramid fiber yarn of silver layer weaves.
6. aerospace shielded cable according to claim 3, which is characterized in that the shielded layer uses the silver-plated virtue of 200D
The braiding of synthetic fibre silk structure.
7. aerospace shielded cable according to claim 1, which is characterized in that the insulating layer with a thickness of 0.1-
0.2mm。
8. aerospace shielded cable according to claim 7, which is characterized in that the insulating layer with a thickness of
0.15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893169.8U CN208507245U (en) | 2018-06-06 | 2018-06-06 | A kind of aerospace shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820893169.8U CN208507245U (en) | 2018-06-06 | 2018-06-06 | A kind of aerospace shielded cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507245U true CN208507245U (en) | 2019-02-15 |
Family
ID=65288600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820893169.8U Active CN208507245U (en) | 2018-06-06 | 2018-06-06 | A kind of aerospace shielded cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599290A (en) * | 2020-11-30 | 2021-04-02 | 芜湖航天特种电缆厂股份有限公司 | Self-rolling wave-proof sleeve structure for aerospace |
| CN114709015A (en) * | 2022-03-24 | 2022-07-05 | 深圳市晖耀电子有限公司 | Super-strong toughness cable |
-
2018
- 2018-06-06 CN CN201820893169.8U patent/CN208507245U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599290A (en) * | 2020-11-30 | 2021-04-02 | 芜湖航天特种电缆厂股份有限公司 | Self-rolling wave-proof sleeve structure for aerospace |
| CN114709015A (en) * | 2022-03-24 | 2022-07-05 | 深圳市晖耀电子有限公司 | Super-strong toughness cable |
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