CN204651082U - Aerospace 1553B bus cable - Google Patents
Aerospace 1553B bus cable Download PDFInfo
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- CN204651082U CN204651082U CN201520404570.7U CN201520404570U CN204651082U CN 204651082 U CN204651082 U CN 204651082U CN 201520404570 U CN201520404570 U CN 201520404570U CN 204651082 U CN204651082 U CN 204651082U
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- insulating barrier
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- copper alloy
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Abstract
The utility model is aerospace 1553B bus cable, its structure is two cored structures, every core has a conductor adopting multiply silver-plated copper alloy stranded, copper alloy monofilament silver coating thickness >=1.5 μm that multiply is silver-plated, conductor periphery is the insulating barrier adopting high temperature extrusion equipment to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer PFA material, the surrounding of insulating barrier is packing, the periphery of insulating barrier is screen, monofilament silver coating thickness >=1.5 μm, the periphery of screen adopts high temperature extrusion equipment to extrude perfluoroethylene-propylene material FEP restrictive coating, the bus cable low temperature of resistance to limit the-90 DEG C.Advantage: external diameter little lightweight, decay low, electric capacity is little, impedance stabilization, the low temperature of resistance to the limit, resistance to irradiation, vacuum-resistant ease gas, insulation and nonmetallic materials burning and effusion generation pernicious gas content few, meet Signal transmissions and the control of 1553B bus network on spacecraft under aerospace severe rugged environment, space station and other aerospace equipment.
Description
Technical field
The utility model proposes a kind CNDBC-PFA-24S2SJ-75 type aerospace 1553B bus cable, can adapt to meet the 1553B bus network Signal transmissions on spacecraft under aerospace severe rugged environment, space station and other aerospace equipment and control, there is excellent mechanical performance, electrical property and resistance to aerospace environmental performance (resistance to irradiation), Long-Time Service within the scope of-90 ~+200 DEG C.
Background technology
Existing product is for foundation with GJB/ 773A-2000 " Aero-Space fluoropolymer insulated wire cable ", the single section of specification manufacture that simultaneously have references to American army mark single section of detail specification MIL-C-17/176-0003 and AXON company P512296 product is produced, but the special space environmental performance that this product has lacked general under aerospace environment: as the 1. low temperature of resistance to the limit; 2. high temperature resistant; 3. resistance to irradiation; 4. impedance stabilization, decay little and electric capacity is low; 5. vacuum-resistant ease gas; 6. insulating material smoke density is little with burning generation pernicious gas content; 7. nonmetallic materials pernicious gas escaped quantity is little; 8. the little performance such as lightweight of external diameter.
Summary of the invention
The utility model proposes a kind of CNDBC-PFA-24S2SJ-75 type aerospace 1553B bus cable, its object is intended to overcome and the above-mentioned defect had existing for product, and to formulate according to the particular/special requirement of user, also taken into full account the particular/special requirements such as its applicability and reliability and the resistance to irradiation of aerospace environment and material pernicious gas content are little simultaneously.
Technical solution of the present utility model: aerospace 1553B bus cable, its structure is cored structure between two, every core has a conductor adopting multiply silver-plated copper alloy stranded, copper alloy monofilament silver coating thickness >=1.5 μm that multiply is silver-plated, it is the insulating barrier adopting high temperature extrusion equipment to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer PFA material in the periphery of conductor, the surrounding employing PTFE of insulating barrier pushes packing, the periphery of insulating barrier is the screen adopting the braiding of silver-plated copper alloy monofilament, monofilament silver coating thickness >=1.5 μm of silver-plated copper alloy, the periphery of screen is the restrictive coating of the perfluoroethylene-propylene material FEP adopting high temperature extrusion equipment to extrude, the bus cable low temperature of resistance to limit the-90 DEG C.
The utility model has the following advantages:
(1) low temperature of resistance to limit the: cable can normal laying installation at-90 DEG C, can solve general material due to low temperature and lay problems such as easily causing sclerosis, embrittlement, thus meet the instructions for use of aerospace low temperature environment.
Long-Time Service within the scope of-90 ~+200 DEG C;
(2) external diameter is little and lightweight: the outside diameter of cable is (3.17 ~ 3.37) mm, maximum weight 24g/m.Reduce to lay space, alleviate the weight of product at spacecraft;
(3) electrical property: under frequency 1MHz condition, characteristic impedance: (70 ~ 84) Ω; Decay≤3.93dB/100m; Electric capacity≤75.45pF/m;
(4) mechanical performance: product tensile strength is large, silver-plated copper alloy conductor tensile strength >=380MPa, silver-plated copper alloy woven shield tensile strength >=320Mpa;
(5) resistance to irradiation: the resistance to irradiation accumulated dose of product reaches as high as 1 × 10
7rad(CO
60gamma-rays irradiates);
(6) vacuum-resistant ease gas: the total mass loss (TML)≤1% of insulating material, can condense volatile matter (CVCM)≤0.1%;
(7) nonmetallic materials pernicious gas effusion: normal atmospheric environment, 101.325kPa, 50 DEG C, 72h, the oder levels that electric wire nonmetallic materials discharge excitant and special odor gas is not more than 1.5 grades; Deviate from carbon monoxide and be not more than 25ug/g; Deviate from total organic matter and be not more than 100 μ g/g;
(8) the shielded type cable loss in weight: the loss in weight is not more than 0.4%;
(9) the toxic gas content detection result that insulating material burning produces meets national requirements.
Accompanying drawing illustrates:
Accompanying drawing 1 is the production technological process of aerospace 1553B bus cable.
Accompanying drawing 2 is structural representations of aerospace 1553B bus cable.
In figure 1 is conductor; 2 is insulating barriers; 3 is packings; 4 is screens; 5 is restrictive coatings.
Embodiment:
Aerospace 1553B bus cable, its structure is two cored structures, every core has a conductor 1 adopting multiply silver-plated copper alloy stranded, copper alloy monofilament silver coating thickness >=1.5 μm that multiply is silver-plated, it is the insulating barrier 2 adopting high temperature extrusion equipment to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer PFA material in the periphery of conductor 1, insulating barrier 2 surrounding adopts PTFE to push packing 3, the periphery of insulating barrier 2 is the screens 4 adopting the braiding of silver-plated copper alloy monofilament, monofilament silver coating thickness >=1.5 μm of silver-plated copper alloy, the periphery of screen 4 adopts high temperature extrusion equipment to extrude perfluoroethylene-propylene material FEP restrictive coating 5, the bus cable low temperature of resistance to limit the-90 DEG C.
Described PFA extrudes insulating barrier 2 and FEP extrudes restrictive coating 5, silver-plated copper alloy monofilament woven shield 4, and high-low temperature resistant reaches-90 DEG C ~ 200 DEG C;
Described insulating barrier is single layer dielectrics, and insulation adopts high temperature extrusion machine thin-walled to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) material;
Described bus cable external diameter is 3.17 ~ 3.37mm, maximum weight 24g/m, reduces to lay space, alleviates the weight of product at spacecraft;
Described bus cable electrical property: under frequency 1MHz condition, characteristic impedance: 70 ~ 84 Ω; Decay≤3.93dB/100m; Electric capacity≤75.45pF/m;
The mechanical performance of described bus cable: product tensile strength is large, silver-plated copper alloy conductor tensile strength >=380MPa, silver-plated copper alloy woven shield tensile strength >=320Mpa;
The resistance to irradiation of described bus cable: the resistance to irradiation accumulated dose of product reaches as high as 1 × 10
7rad(CO
60gamma-rays irradiates).
Below in conjunction with accompanying drawing, further describe the technical solution of the utility model:
Contrast accompanying drawing 1, conductor 1 is stranded conductor, stranded with electric wire bunch of cables winch concentric type; Insulation is single layer dielectrics, and insulation adopts high temperature extrusion machine thin-walled to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) material; Adopt the braiding of silver-plated copper alloy silk, screen adopts braiding machine braiding, and material is silver-plated copper alloy silk; Sheath adopts perfluoroethylene-propylene (FEP) material.
Contrast accompanying drawing 2, aerospace 1553B bus cable, its structure is two cored structures, every core has a conductor 1 adopting multiply silver-plated copper alloy stranded, copper alloy monofilament silver coating thickness >=1.5 μm that multiply is silver-plated, it is the insulating barrier 2 adopting high temperature extrusion equipment to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) material in the periphery of conductor 1, insulating barrier 2 surrounding adopts PTFE to push packing 3, the periphery of insulating barrier 2 is the screens 4 adopting the braiding of silver-plated copper alloy monofilament, monofilament silver coating thickness >=1.5 μm of silver-plated copper alloy, the periphery of screen 4 adopts high temperature extrusion equipment to extrude perfluoroethylene-propylene material (FEP) restrictive coating 5.
PFA extrudes insulating barrier 2 and FEP extrudes restrictive coating 5, and silver-plated copper alloy monofilament woven shield 4, high-low temperature resistant reaches-90 DEG C ~ 200 DEG C.
Claims (4)
1. aerospace 1553B bus cable, it is characterized in that cored structure between two, every core has a conductor adopting multiply silver-plated copper alloy stranded, copper alloy monofilament silver coating thickness >=1.5 μm that multiply is silver-plated, it is the insulating barrier adopting high temperature extrusion equipment to extrude tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer PFA material in the periphery of conductor, the surrounding employing PTFE of insulating barrier pushes packing, the periphery of insulating barrier is the screen adopting the braiding of silver-plated copper alloy monofilament, monofilament silver coating thickness >=1.5 μm of silver-plated copper alloy, the periphery of screen is the restrictive coating of the perfluoroethylene-propylene material FEP adopting high temperature extrusion equipment to extrude.
2. high-low temperature resistant aerospace 1553B bus cable according to claim 1, is characterized in that the high-low temperature resistant degree of institute's insulating barrier and restrictive coating, screen :-90 DEG C ~ 200 DEG C.
3. high-low temperature resistant aerospace 1553B bus cable according to claim 1, is characterized in that described insulating barrier is single layer dielectrics.
4. high-low temperature resistant aerospace 1553B bus cable according to claim 1, is characterized in that the external diameter 3.17 ~ 3.37mm of described bus cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404570.7U CN204651082U (en) | 2015-06-12 | 2015-06-12 | Aerospace 1553B bus cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404570.7U CN204651082U (en) | 2015-06-12 | 2015-06-12 | Aerospace 1553B bus cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204651082U true CN204651082U (en) | 2015-09-16 |
Family
ID=54103801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520404570.7U Active CN204651082U (en) | 2015-06-12 | 2015-06-12 | Aerospace 1553B bus cable |
Country Status (1)
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|---|---|
| CN (1) | CN204651082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047298A (en) * | 2015-06-12 | 2015-11-11 | 南京全信传输科技股份有限公司 | 1553B bus cable for astronavigation |
| CN114420348A (en) * | 2022-01-21 | 2022-04-29 | 湖北航天电缆有限公司 | Aviation ultrahigh frequency low-loss high-low temperature resistant high-speed data bus and preparation method thereof |
-
2015
- 2015-06-12 CN CN201520404570.7U patent/CN204651082U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047298A (en) * | 2015-06-12 | 2015-11-11 | 南京全信传输科技股份有限公司 | 1553B bus cable for astronavigation |
| CN114420348A (en) * | 2022-01-21 | 2022-04-29 | 湖北航天电缆有限公司 | Aviation ultrahigh frequency low-loss high-low temperature resistant high-speed data bus and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |