CN201191517Y - High-voltage ignition conductive wire for aerial engine - Google Patents
High-voltage ignition conductive wire for aerial engine Download PDFInfo
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- CN201191517Y CN201191517Y CNU2008200336309U CN200820033630U CN201191517Y CN 201191517 Y CN201191517 Y CN 201191517Y CN U2008200336309 U CNU2008200336309 U CN U2008200336309U CN 200820033630 U CN200820033630 U CN 200820033630U CN 201191517 Y CN201191517 Y CN 201191517Y
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Abstract
The utility model relates to a high-tension ignition cable of an aeroengine, which comprises a conductor wire core, an insulation layer and a sheath, wherein the insulation layer and the sheath are sequentially wrapped around the conductor wire core. The high-tension ignition cable is characterized in that a zero-clearance corona-resistant layer is disposed between the periphery of the conductor wire core and the inner wall of the insulation layer, the conductor wire is single-stranded, every two adjacent layers among the conductor wire core, zero-clearance corona-resistant layer, the insulation layer and the sheath are closely attached to each other. The utility model achieves the purpose of integral zero clearance of the ignition cable through measures including utilizing single-stranded conductor wire core, adding with the zero-clearance corona-resistant layer, closely attaching every two adjacent layers in the ignition cable and the like, thereby substantially inhibiting coronae, and eliminating the coronae from the source. Further, the utility model is additionally provided with the zero-clearance corona-resistant layer capable of resisting coronae, electric arc and partial discharge, and extremely increases the arc resistance performance of the ignition cable. Simultaneously, through utilizing the composite insulation structure of heat resistance, pressure resistance, corona resistance and stable phase, the utility model has dielectric stability of broadband range.
Description
Technical field
The utility model relates to a kind of electric wire, is specifically related to a kind of high-tension ignition lead, and this high-tension ignition lead is mainly used in the high-tension ignition system of equipment medium power devices such as aircraft, airship, guided missile, rocket, nuclear-powered submarine.
Background technology
Along with the continuous lifting of the flying height and the flying speed of modernized aircraft, the in-flight ingition condition of aircraft engine is constantly upgrading also, so the various parameters of engine ignitor become important all the more for the mobility and the reliability of aircraft.Parameters such as the spark energy of engine igniting system, discharging efficiency and spark frequency are vital parameters to aircraft engine reliable ignition, biography flame and burning.Electric arc dielectric breakdown and the thermoelectric field emission of following high pressure to produce during engine ignition, and because the sharp effect of penetrating of the electromagnetism that instantaneous sparkover causes for the destruction of engine periphery electronic instruments and electric machine operation state, is immeasurable.
And present aero-engine harness, though high temperature resistant, high pressure resistant, anti-electric arc, corrosion-resistant, anti-fuel oil, vibration resistance, shock-resistant, ageing-resistant, radiation hardness, environmental protection, the design of fire-retardant grade and manufacture view, all can reach the requirement of national sector standard, but, in actual use, still there is following shortcoming: one, existing aero-engine harness, in order to improve its pliability, often conductor wire core is designed to the rope-lay strand structure, and for resisting high-voltage arc, the ground floor insulating Design is become the wrapped form of polyimide film, but between the conductor strand and between conductor wire core and the polyimide film, all there is the air gap, so under the high voltage electric field effect, the corona that gap location will excite a large amount of free electrons and cation to form, the electric arc that produces is temperature extra-high-speed (reaching 10000 ℃) not only, and mutual high-speed impact, with thermoelectric field emission with pass through gap between polyimide film layer, fill the air around harness, form instantaneous electric path, cause short circuit, or encourage peripheral electric device, cause moment level imbalance; Two, existing aero-engine harness often thinks little of sharp the penetrating with thermoelectric field emission defect problem of electromagnetic field, and this is very unfavorable to airborne vehicle flight stability and reliability.
How to solve the existing problem of existing aero-engine high-tension ignition lead, propose a kind of novel structure and material design technology project that suppresses the highly reliable high-performance harness of corona generation, just become the emphasis of the utility model research.
Summary of the invention
The utility model provides a kind of aero-engine high-tension ignition lead, and its purpose is to suppress the generation of each layer of harness corona, and improves the reliability of whole harness work with this.
For achieving the above object, the technical solution adopted in the utility model is: a kind of aero-engine high-tension ignition lead, comprise conductor wire core, coated insulation layer and sheath successively on the conductor wire core, wherein: between described conductor wire core periphery and the insulating barrier inwall every being provided with the anti-dizzy layer of zero-clearance; Described conductor wire core is a sub-thread; Each adjacent layer is close to mutually in described conductor wire core, the anti-dizzy layer of zero-clearance, insulating barrier and the sheath.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the anti-dizzy layer of described zero-clearance is the no air gap functional layer that a kind of adjacent layer that make with the material of tool corona resisting characteristics and interior (as conductor wire core) closely pastes, the polyimide film that the concrete preferable employing reaction method of this functional layer applies, the anti-corona and the local discharge capability that in use utilize polyimides and had, tolerance is up to the electric arc of 230s, cohere the firm chemical reaction method of fastness because of the anti-dizzy layer employing of zero-clearance simultaneously and manufacture the form that closely pastes, can thoroughly eliminate the air gap that may produce corona.
2, in the such scheme, between the anti-dizzy layer inwall of described conductor wire core periphery and zero-clearance every establishing the voltage gradient screen.Described voltage gradient screen is a kind ofly to be made of semiconductive material, screen with high voltage core gradient effect and absorption electromagnetic wave effect, can overcome the sharp blackberry lily of conventional high-tension harness electromagnetism in use and disturb the defective of destroying insulating barrier with the arc heat electric field transmitted, be good with silicon wafer semiconductive film usually.Described semiconductive material is meant that conductance is to approach the material of conductor, is 10 as conductance
-8～10
-3Ω m.
3, in the such scheme, conductor wire core is designed to sub-thread, reason is the inner no air gap of sub-thread round conductor, and peripheral part is close to the insulation driving fit, has created condition for the elimination high-voltage arc; This sub-thread conductor wire core on material, can adopt all very good metal material of mechanical strength, yield strength, elastic limit, fatigue limit and corrosion resistance constitute (such as, beallon and nickel plating thereof, silver jacketed wire round conductor), compensate for the deficiency of using on the sub-thread conductor flexibility with this.
4, in the such scheme, described insulating barrier is coated successively with outer heat-resisting withstand voltage steady layer mutually and is constituted by interior heat-resisting withstand voltage steady phase layer, heat-resisting withstand voltage anti-dizzy layer.Each layer all finished with the technology that thermoplasticity is extruded, and layer does not have any air gap with interlayer and exists, thereby also can not make electric arc in interlayer migration everywhere and transmission as the lead of traditional around-packing technology manufacturing.
5, in the such scheme, described sheath is a metal seamless tube, the material of best employing high strength, light weight, high-temperature resistant (such as, titanium, titanium alloy), make whole harness have remarkable composite characteristic.
The utility model design principle is: by adopting the sub-thread conductor wire core, increase the anti-dizzy layer of zero-clearance and each adjacent layer in the harness being close to measure such as be provided with, make harness reach void-free purpose on the whole, fundamentally suppress the generation of corona, thereby eliminated electric arc in the source.And,, also extraordinarily improved the anti-electric arc ability of the utility model harness because the utility model has been set up the anti-dizzy layer of the zero-clearance of the anti-corona of tool, electric arc and local discharge capability.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model adopts the sub-thread conductor wire core, the inner no air gap of conductor wire core, the anti-dizzy layer of peripheral part and zero-clearance is close to, harness is tight on the whole, generation from basic inhibition corona, thereby eliminated electric arc in the source, and increased anti-corona ability, prevented the insulation of arc heat electric field transmitted destruction.
2, because the utility model adopts the voltage gradient screen, this voltage gradient screen has reduced the potential difference of conductor wire core as the gradient-structure material, thereby further suppresses the generation of corona, has eliminated electric arc from the source; And the voltage gradient screen also has electromagnetic shielding action, and the electromagnetic field that the high-tension electricity of conductor wire core inside is produced wraps, and prevents from that it from leaking to disturb the operate as normal of extraneous instrument and equipment, improves the fail safe of using.
3,, guaranteed the dielectric stability of higher heat-resisting, voltage endurance capability and wide frequency range because the utility model insulating barrier is coated with outer heat-resisting withstand voltage steady layer mutually successively by interior heat-resisting withstand voltage steady phase layer, heat-resisting withstand voltage anti-dizzy layer constitutes.
4, because the utility model adopts metal seamless tube, this metal seamless tube is to inner electromagnetic wave tool effect of contraction, to external electromagnetic waves tool obstructing capacity, both guaranteed the high strength of harness, further improved harness again to electromagnetic shielding, jamproof effect.
Description of drawings
Accompanying drawing 1 is the utility model embodiment cross-sectional view.
In the above accompanying drawing: 1, conductor wire core; 2, the anti-dizzy layer of zero-clearance; 3, voltage gradient screen; 4, interior heat-resisting withstand voltage steady phase layer; 5, heat-resisting withstand voltage anti-dizzy layer; 6, outer heat-resisting withstand voltage steady phase layer; 7, metal seamless tube.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1,
A kind of aero-engine high-tension ignition lead comprises conductor wire core 1, coats voltage gradient screen 3, the anti-dizzy layer 2 of zero-clearance, insulating barrier and sheath on the conductor wire core 1 successively; Described conductor wire core 1 is a sub-thread, and each adjacent layer is close to mutually in conductor wire core 1, voltage gradient screen 3, the anti-dizzy layer 2 of zero-clearance, insulating barrier and the sheath.Wherein:
The anti-dizzy layer 2 of described zero-clearance is polyimide films that a kind of reaction method applies, the anti-corona and the local discharge capability that in use can utilize polyimides to have, and tolerance is up to the electric arc of 230s; Anti-dizzy layer 2 employing of zero-clearance are cohered the firm chemical reaction method of fastness and are manufactured the form that closely pastes, and can thoroughly eliminate the air gap that may produce corona.
Described voltage gradient screen 3 is a kind of PVCD forensic chemistry vapour deposition monocrystalline or polysilicon semiconductive film, can overcome the sharp blackberry lily of conventional high-tension harness electromagnetism in use and disturb the defective of destroying insulating barrier with the arc heat electric field transmitted.
Described conductor wire core 1 is sub-thread beallon and nickel plating or silver jacketed wire round conductor, the inner no air gap of sub-thread round conductor, and peripheral part is close to the insulation driving fit, has created structural condition for the elimination high-voltage arc; This sub-thread beallon and nickel plating thereof or silver jacketed wire round conductor have good mechanical strength, yield strength, elastic limit, fatigue limit and corrosion resistance, compensate for the deficiency of using on the sub-thread conductor flexibility with this.
Described insulating barrier is coated successively with outer heat-resisting withstand voltage steady layer mutually 6 and is constituted by interior heat-resisting withstand voltage steady phase layer 4, heat-resisting withstand voltage anti-dizzy layer 5.Interior heat-resisting withstand voltage steady phase layer 4 is extruded insulating barrier for polyether-ketone analog thermoplastic plastics such as PEEK, PEEKK, CoPEEK; Heat-resisting withstand voltage anti-dizzy layer 5 is extruded insulating barrier for the thermoplastic polyimide plastics; Outer heat-resisting withstand voltage steady phase layer 6 is extruded insulating barrier for the PTFE fluoroplastics.Each layer all finished with the technology that thermoplasticity is extruded, and layer does not have any air gap with interlayer and exists, thereby also can not make electric arc in interlayer migration everywhere and transmission as the lead of traditional around-packing technology manufacturing.
Described sheath is a metal seamless tube 7.This metal seamless tube 7 does not structurally have the gap with insulating barrier and is provided with, preferable employing high strength, light weight, high-temperature resistant and to the metal material of the obstructing capacity of electromagnetic constraint in inside and external electromagnetic waves (such as, titanium, titanium alloy), make whole harness have remarkable composite characteristic.
The utility model is by adopting sub-thread conductor wire core 1, increase the anti-dizzy layer 2 of zero-clearance and each adjacent layer in the harness being close to measure such as be provided with, make harness reach void-free purpose on the whole, from the generation of basic inhibition corona, thereby eliminated electric arc in the source.And,, also improved the anti-electric arc ability of the utility model harness because utility model has increased the anti-dizzy layer 2 of the zero-clearance of the anti-corona of tool, electric arc and local discharge capability.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (4)
1, a kind of aero-engine high-tension ignition lead comprises conductor wire core (1), and coated insulation layer and sheath successively on the conductor wire core (1) is characterized in that: between described conductor wire core periphery and the insulating barrier inwall every being provided with the anti-dizzy layer of zero-clearance (2); Described conductor wire core (1) is a sub-thread; Each adjacent layer is close to mutually in described conductor wire core (1), the anti-dizzy layer of zero-clearance (2), insulating barrier and the sheath.
2, aero-engine high-tension ignition lead according to claim 1 is characterized in that: between anti-dizzy layer (2) inwall of described conductor wire core (1) periphery and zero-clearance every being provided with voltage gradient screen (3).
3, aero-engine high-tension ignition lead according to claim 1 is characterized in that: described insulating barrier coats formation successively by interior heat-resisting withstand voltage steady phase layer (4), heat-resisting withstand voltage anti-dizzy layer (5) and outer heat-resisting withstand voltage steady layer mutually (6).
4, aero-engine high-tension ignition lead according to claim 1 is characterized in that: described sheath is metal seamless tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336309U CN201191517Y (en) | 2008-03-28 | 2008-03-28 | High-voltage ignition conductive wire for aerial engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336309U CN201191517Y (en) | 2008-03-28 | 2008-03-28 | High-voltage ignition conductive wire for aerial engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201191517Y true CN201191517Y (en) | 2009-02-04 |
Family
ID=40335680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200336309U Expired - Fee Related CN201191517Y (en) | 2008-03-28 | 2008-03-28 | High-voltage ignition conductive wire for aerial engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201191517Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298015A (en) * | 2016-09-20 | 2017-01-04 | 芜湖航天特种电缆厂股份有限公司 | Light high pressure low inductive ignition cable and preparation method thereof |
| CN106575535A (en) * | 2014-08-06 | 2017-04-19 | 耐克森公司 | Electrical conductor for aeronautical applications |
| CN112267966A (en) * | 2013-10-11 | 2021-01-26 | 曼恩能源方案有限公司 | Otto gas motor |
| US10992201B2 (en) | 2017-08-07 | 2021-04-27 | General Electric Company | Electrical propulsion system with corona suppression on a vehicle |
-
2008
- 2008-03-28 CN CNU2008200336309U patent/CN201191517Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267966A (en) * | 2013-10-11 | 2021-01-26 | 曼恩能源方案有限公司 | Otto gas motor |
| CN106575535A (en) * | 2014-08-06 | 2017-04-19 | 耐克森公司 | Electrical conductor for aeronautical applications |
| CN106298015A (en) * | 2016-09-20 | 2017-01-04 | 芜湖航天特种电缆厂股份有限公司 | Light high pressure low inductive ignition cable and preparation method thereof |
| US10992201B2 (en) | 2017-08-07 | 2021-04-27 | General Electric Company | Electrical propulsion system with corona suppression on a vehicle |
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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: 20090204 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |