CN103491756B - The shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable - Google Patents
The shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable Download PDFInfo
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- CN103491756B CN103491756B CN201310497554.2A CN201310497554A CN103491756B CN 103491756 B CN103491756 B CN 103491756B CN 201310497554 A CN201310497554 A CN 201310497554A CN 103491756 B CN103491756 B CN 103491756B
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Abstract
The shielding processing device of shielding cabin peculiar to vessel penetrating cable, the multi-cable comprising cable penetrating cylinder and be arranged in cable penetrating cylinder, the outer wall of cable penetrating cylinder and the crossing cabin eyelet welding of cabin metallic walls connect, cable comprises metal armoured cable and/or insulating sheath cable, and metal armoured cable is directly through cable penetrating cylinder; Insulating sheath cable is closely wound with some layers of conductive film through the cable position of cable penetrating cylinder, the insulating sheath cable of simultaneously conductive film both sides is wound with flexible ferromagnetic adhesive tape, is provided with certain intervals between flexible ferromagnetic adhesive tape and conductive film, forms common mode choke; Fill in gap between cable and cable and the gap between cable and cable penetrating cylinder and soft have again certain flexible wire ball, wire ball is in compressing shape; Ionic conduction cream is filled at the two ends of wire ball, fills waterproof sealing clay respectively outside the ionic conduction cream at two ends.Beneficial effect of the present invention: do not destroy the construction of cable and intensity, reduces electromagnetic interference.
Description
Technical field
The present invention relates to the shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable, on ship, dissimilar cable is through electromagnetic shielding process during shielding cabin, with the coupled radiation of the leakage and cable that reduce crossing cabin hole on the impact of cabin shielding properties.
Background technology
Along with the development of electronic information technology, the problem of electromagnetic environment and electromagnetic interference becomes increasingly conspicuous.The electromagnetic environment of various spontaneous electromagnetic environment and artificial generation is more and more intensive, particularly by the electromagnetic radiation environment of having a mind to artificially produced, even damages for the purpose of the other side's electronic equipment, constitute great threat to electronic equipment to disturb, to suppress; On the other hand, in many cases, the sensitive equipment of powerful radio frequency emitting devices and highly sensitive low level work is arranged together, as the communication on ship, radar emission machine equipment, radio receiving equipment, computer and messaging device, control appliance etc., electromagnetic interference is as easy as rolling off a log enters sensitive equipment by radiation and conduction two kinds of approach, and communication control processor noise is improved, data transmission fails, control appliance is malfunctioning, and computer system crashes, radar target loss etc.Therefore, the electromagnetic interference controlling to be produced sensitive electronic equipment by all kinds of electromagnetic environment is needed.Controlling radiation field disturbs most effective method to shield exactly, desirable closed metal housing can provide the screening effectiveness of hundreds of dB, but the shielding cabin of boats and ships loading arbitrarily electronic equipment all needs to have personnel's import and export, power supply and Signal transmissions mouth, ventilating opening etc., these openings can reduce the screening effectiveness in metal cabin greatly.The import and export of shielded enclosure under laboratory condition to various opening, hole seam and cable have very strict requirement.The shielding cabin of high-performance ship also using the techniques such as shield door, shielding windows, filter, shielded type cable, to improve the screening effectiveness in cabin, prevents extraneous strong electromagnetic radiation interference from entering impact in shielding cabin.But, because the number of cables that boats and ships use is huge, and model is various, cabin requires watertight, cabling requirements is solid and reliable, the crossing cabin interface board that conventional shielded enclosure cannot be used to commonly use carrys out the cable of connecting cabin indoor and outdoor, to ensure its screening effectiveness, make to shield the screening effectiveness in cabin because the electric current of the direct compromising emanation in cable penetrating hole and the induction of cable skin antenna effect conduct to cabin interior after secondary radiation and greatly reduce.Therefore, affect at present high-performance ship, to shield the principal element of cabin screening effectiveness and technological difficulties are shielding processing technology to penetrating cable.
The various cables that high-performance ship uses are all the cables with certain screening effectiveness, namely have the cable of one deck or two layers of metal wire knitted net screen.Using more is the cable with one deck shielding, outside woven shield, usually has one deck insulating sleeve (hereinafter referred to as insulating sheath cable), have protective effect to cable, can waterproof, antirust, oil-stain-preventing, fire-retardant, increases cable strength.When requiring higher to antijamming capability or signal transmission quality, use two layers of metal wire knitted net shielded type cable, namely add one deck mesh grid screen (hereinafter referred to as metal armoured cable) again at the skin of insulating sleeve.When on boats and ships, cable is through cabin under normal circumstances, position perforate suitable on bulkhead, welding cable crossing cabin cylinder, after cable passes from cable penetrating cylinder, adopts lute in and filler to fill and makes water-proofing treatment, do not carry out shielding process process.Someone proposed several shielding processing method, one method is see application number cable penetrating technology for electromagnetic shielding cabin disclosed in 200610021215.2, the SI semi-insulation sheath of cable in cable penetrating cylinder is removed, expose screen, welding earth connection to be screw-coupled on cable penetrating cylinder and filler wires ball, encapsulation process is carried out again at cable penetrating cylinder two ends, this method is due to complicated construction technique, the screen of as easy as rolling off a log destruction cable, affect the performance of cable, reduce the intensity of cable, so substantially do not adopted.Another kind method is after cable laying completes into water-stop, overlay between cable with aluminium foil or Copper Foil, or be filled between cable and bulkhead with metal envelope block, to shield electromagnetic wave, adopt effect in this way very limited, due to the restriction of construction technology, the space between cable cannot be covered completely, and cable couples cannot be stoped to conduct the secondary radiation caused.
Summary of the invention
The technical problem to be solved in the present invention is, for existing shipboard cable shielding processing above shortcomings, provide the shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable, this device does not destroy structure and the intensity of cable.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
The shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable, comprise cable penetrating cylinder and be arranged in the multi-cable (cable in cylinder is the actual dissimilar cable used on ship) in cable penetrating cylinder, the outer wall of described cable penetrating cylinder and the crossing cabin eyelet welding of cabin metallic walls connect, it is characterized in that: described cable comprises metal armoured cable and/or insulating sheath cable, described metal armoured cable is directly through cable penetrating cylinder; Described insulating sheath cable is closely wound with some layers of conductive film through the cable position of cable penetrating cylinder, the insulating sheath cable of simultaneously conductive film both sides is wound with flexible ferromagnetic adhesive tape, be provided with certain intervals between the ferromagnetic adhesive tape of described flexibility and conductive film, form common mode choke, for the interference induced current absorbed or on reflective isolating jacketed cable screen.
By such scheme, flexible wire ball is filled with in gap between described cable penetrating cylinder inside cable and cable and the gap between cable and cable penetrating cylinder, described wire ball, in compressing shape, ensures conductive film all good contacts that cable penetrating cylinder inwall, the outer shielding layer of metal armoured cable, insulating sheath cable are wound around outward; After cable is fixedly tightened, fill ionic conduction cream at the two ends of wire ball, between the cable that ionic conduction cream fills up cable penetrating cylinder two ends and the gap of cable and cable penetrating cylinder inwall; Waterproof sealing clay is filled respectively again outside the ionic conduction cream at two ends.
By such scheme, external welding in the outer wall of described cable penetrating cylinder and cabin metallic walls 360 °, and Brush for outer wall one deck anticorrosive paint of cable penetrating cylinder.
By such scheme, the inwall of described cable penetrating cylinder removes greasy dirt, brush one deck conductive paint after polishing.
By such scheme, the actinal surface shape of described cable penetrating cylinder and area are selected according to the number of cables of passing and diameter, and the filling rate of cable penetrating cylinder is 55% ~ 65%.
By such scheme, described conductive film is aluminium foil, Copper Foil or conductive tape.
By such scheme, described conductive film is closely wound around the cable position 2 ~ 3 layer of described insulating sheath cable through cable penetrating cylinder.
By such scheme, the ferromagnetic adhesive tape choke of described flexibility substitutes.
By such scheme, described wire ball to be mixed by the proportion of 2:3 ~ 4:3 by stainless steel wire and copper wire that (stainless steel wire has good elasticity, but conductivity is slightly poor, copper wire conductivity is good, but poor flexibility, mixed wire ball has elasticity and conductivity concurrently, and shield effectiveness is good).
By such scheme, the length of described cable penetrating cylinder is 290 ~ 310mm; The coiling length of described conductive film on insulating sheath cable is 310 ~ 330mm, the wide 20 ~ 30mm of the ferromagnetic adhesive tape of described flexibility, thick 3 ~ 5mm, flexible ferromagnetic adhesive tape and conductive film be spaced apart 8 ~ 12mm; The length that described wire ball is filled in cable penetrating cylinder is 210 ~ 230mm; Length filled by ionic conduction cream is 15 ~ 25mm; It is 15 ~ 25mm that waterproof sealing clay fills length.
Described ionic conduction cream and waterproof sealing clay adopt common commercially available prod.
Operation principle of the present invention: form a feedthrough capacitor between conductive film and the screen of insulating sheath cable, feedthrough capacitor and wire ball, cable penetrating cylinder inwall good contact, realize feedthrough capacitor ground connection, thus the hf interference current that insulating sheath cable screen is responded to is imported on hull; Be provided with certain intervals between flexible ferromagnetic adhesive tape and conductive film, form common mode choke, thus the interference induced current on absorption or reflective isolating jacketed cable screen.
The present invention has following beneficial effect:
1, conductive film and the ferromagnetic adhesive tape of flexibility is adopted to be wound around insulating sheath cable, form the conduction of feedthrough capacitor and electromagnetism choke suppression electromagnetic interference, structure is simple, do not destroy structure and the intensity of cable, also can not affect the transmission of cable normal signal, conduct radiation again for the electromagnetic radiation leakage of shield opening seam and the coupling of cable sheath, reduce electromagnetic interference, improve cabin screening effectiveness, successful;
2, elasticity and the gap between the good wire ball filled cable of conductivity and cable and between cable and cable penetrating cylinder inwall, shield effectiveness is better, and continuation is stronger;
3, on the basis that wire ball is filled, then fill ionic conduction cream on wire ball both sides, and further improve electric conductivity with waterproof sealing clay.
Accompanying drawing explanation
Fig. 1 is the structural representation of shielding processing device of the present invention;
In figure, 1-cabin metallic walls, 2-cable penetrating cylinder, 3-conductive paint, 4-wire ball, 5-ionic conduction cream, 6-waterproof sealing clay, 7-conductive film, the flexible ferromagnetic adhesive tape of 8-, 9-insulating sheath cable, 10-metal armoured cable.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
With reference to shown in Fig. 1, the shielding processing device of shielding cabin peculiar to vessel of the present invention penetrating cable, comprise cable penetrating cylinder 2 and be arranged in the multi-cable (cable in cylinder is the actual dissimilar cable used on ship) in cable penetrating cylinder 2, the outer wall of described cable penetrating cylinder 2 and the crossing cabin eyelet welding of cabin metallic walls connect, described cable comprises metal armoured cable 10 and/or insulating sheath cable 9, and described metal armoured cable 10 is directly through cable penetrating cylinder 2; Described insulating sheath cable 10 is closely wound with some layers of conductive film 7 through the cable position of cable penetrating cylinder 2, the insulating sheath cable 9 of simultaneously conductive film 7 both sides is wound with flexible ferromagnetic adhesive tape 8, be provided with certain intervals between the ferromagnetic adhesive tape 8 of described flexibility and conductive film 7, form common mode choke, for the interference induced current absorbed or on reflective isolating jacketed cable 9 screen.
Flexible wire ball 4 is filled with in gap between described cable penetrating cylinder 2 inside cable and cable and the gap between cable and cable penetrating cylinder 2, described wire ball 4 is in compressing shape, ensure cable penetrating cylinder 2 inwall, the outer shielding layer of metal armoured cable 10, the outer conductive film 7 all good contacts be wound around of insulating sheath cable 9, a feedthrough capacitor is formed between the screen of conductive film 7 and insulating sheath cable 9, feedthrough capacitor and wire ball 4, cable penetrating cylinder 2 inwall good contact, realize feedthrough capacitor ground connection, thus the hf interference current that insulating sheath cable 9 screen is responded to is imported on hull, after cable is fixedly tightened, fill ionic conduction cream 5 at the two ends of wire ball 4, between the cable that ionic conduction cream 5 fills up cable penetrating cylinder 2 two ends and the gap of cable and cable penetrating cylinder 2 inwall, waterproof sealing clay 6 is filled respectively again outside the ionic conduction cream 5 at two ends.
External welding in the outer wall of described cable penetrating cylinder 2 and cabin metallic walls 360 °, and Brush for outer wall one deck anticorrosive paint of cable penetrating cylinder; The inwall of described cable penetrating cylinder 2 removes greasy dirt, and after polishing, brush one deck conductive paint, prevents from getting rusty, and keeps satisfactory electrical conductivity; The actinal surface shape of described cable penetrating cylinder 2 and area are selected according to the number of cables of passing and diameter, and the filling rate of cable penetrating cylinder 2 is 55% ~ 65%.
Described conductive film 7 is aluminium foil, Copper Foil or conductive tape, and the skin conduction of conductive film 7 is good; Described conductive film 7 is closely wound around the cable position 2 ~ 3 layer of described insulating sheath cable 9 through cable penetrating cylinder 2.
Described wire ball 4 is mixed by the proportion of 1:1 by stainless steel wire and copper wire, and stainless steel wire has good elasticity, but conductivity is slightly poor, and copper wire conductivity is good, but poor flexibility, mixed wire ball has elasticity and conductivity concurrently, and shield effectiveness is good.
The shielding processing method of the present invention shielding cabin peculiar to vessel penetrating cable, the number of cables of passing first as required and diameter, select the cable penetrating cylinder 2 of suitable actinal surface shape and area, the filling rate of cable penetrating cylinder 2 is about 60%, in embodiment, the length of cable penetrating cylinder 2 is 300mm, cable penetrating cylinder 2 is inserted the crossing cabin hole of the cabin metallic walls 1 in shielding cabin, and the crossing cabin hole of the outer wall of cable penetrating cylinder 2 and cabin metallic walls 1 is carried out external welding in 360 ° and done anticorrosive paint process, the inwall of cable penetrating cylinder 2 removes greasy dirt, and after polishing, brush one deck conductive paint 3, prevents from getting rusty, and keeps satisfactory electrical conductivity, when wearing cable in cable penetrating cylinder 2, if cable is metal armoured cable 10, then metal armoured cable 10 is directly through cable penetrating cylinder 2, if cable is insulating sheath cable 9, then with conductive film 7, the cable position (insulating sleeve) that insulating sheath cable 9 passes cable penetrating cylinder 2 is closely wound around 2 ~ 3 layers, in embodiment, the coiling length of conductive film 7 on insulating sheath cable 9 is 320mm, conductive film 7 is aluminium foils, Copper Foil or conductive tape, the skin conduction of conductive film is good, on the insulating sheath cable 9 of the both sides of conductive film 7, be wound around the wide 20 ~ 30mm of the flexible ferromagnetic adhesive tape 8 of flexible ferromagnetic adhesive tape 8(simultaneously, thick 3 ~ 5mm, can suitably adjust according to actual needs), certain intervals (10mm) is provided with between flexible ferromagnetic adhesive tape 8 and conductive film 7, form common mode choke, for the interference induced current absorbed or on reflective isolating jacketed cable 9 screen, one deck adhesive waterproof tape is wrapped up again outside the ferromagnetic adhesive tape 8 of flexibility, when multi-cable passes, suitably can adjust the position of flexible ferromagnetic adhesive tape 8, (advantage of flexible ferromagnetic adhesive tape 8 is adopted to be the cables going for different-diameter in order to avoid local diameter is excessive, its thickness and width all can adjust as required, flexible ferromagnetic adhesive tape 8 can substitute with the choke that size is suitable, after choke installs, wraps up with adhesive waterproof tape.), in addition, in gap between cable penetrating cylinder 2 inside cable and cable and the gap between cable and cable penetrating cylinder 2, uniform filling wire ball 4, described wire ball 4 is mixed by the proportion of 1:1 by stainless steel wire and copper wire, in compressing shape, stainless steel wire has good elasticity, but conductivity is slightly poor, copper wire conductivity is good, but poor flexibility, mixed wire ball 4 has elasticity and conductivity concurrently, shield effectiveness is good, make cable penetrating cylinder 2 inwall, the outer shielding layer of metal armoured cable 10, the outer conductive film 7 all good contacts be wound around of insulating sheath cable 9, the length that wire ball 4 is filled in cable penetrating cylinder 2 is 220mm, a feedthrough capacitor is formed between the screen of conductive film 7 and insulating sheath cable 9, feedthrough capacitor and wire ball 4, cable penetrating cylinder 2 inwall good contact, realize feedthrough capacitor ground connection, thus the hf interference current that insulating sheath cable 9 screen is responded to is imported on hull, after fixedly being tightened by cable, then fill ionic conduction cream 5 at the two ends of wire ball 4, between the cable that ionic conduction cream 5 fills up cable penetrating cylinder 2 two ends and the gap of cable and cable penetrating cylinder 2 inwall, guarantee conductivity, length filled by ionic conduction cream 5 is 20mm, finally outside the ionic conduction cream 5 at two ends, fill the waterproof sealing clay 6 that length is 20mm respectively, and waterproof sealing clay 6 is compressed floating, fully solidify, the air-tightness needed for guarantee and watertightness.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the shielding processing device of a shielding cabin peculiar to vessel penetrating cable, the multi-cable comprising cable penetrating cylinder and be arranged in cable penetrating cylinder, the outer wall of described cable penetrating cylinder and the crossing cabin eyelet welding of cabin metallic walls connect, it is characterized in that: described cable comprises metal armoured cable and/or insulating sheath cable, described metal armoured cable is directly through cable penetrating cylinder; Described insulating sheath cable is closely wound with some layers of conductive film through the cable position of cable penetrating cylinder, the insulating sheath cable of simultaneously conductive film both sides is wound with flexible ferromagnetic adhesive tape, be provided with certain intervals between the ferromagnetic adhesive tape of described flexibility and conductive film, form common mode choke, for the interference induced current absorbed or on reflective isolating jacketed cable screen.
2. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, it is characterized in that: in the gap between described cable penetrating cylinder inside cable and cable and the gap between cable and cable penetrating cylinder, be filled with flexible wire ball, described wire ball, in compressing shape, ensures conductive film all good contacts that cable penetrating cylinder inwall, the outer shielding layer of metal armoured cable, insulating sheath cable are wound around outward; After cable is fixedly tightened, fill ionic conduction cream at the two ends of wire ball, between the cable that ionic conduction cream fills up cable penetrating cylinder two ends and the gap of cable and cable penetrating cylinder inwall; Waterproof sealing clay is filled respectively again outside the ionic conduction cream at two ends.
3. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: external welding in the outer wall of described cable penetrating cylinder and cabin metallic walls 360 °, and Brush for outer wall one deck anticorrosive paint of cable penetrating cylinder.
4. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: the inwall of described cable penetrating cylinder removes greasy dirt, brush one deck conductive paint after polishing.
5. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: the actinal surface shape of described cable penetrating cylinder and area are selected according to the number of cables of passing and diameter, and the filling rate of cable penetrating cylinder is 55% ~ 65%.
6. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: described conductive film is aluminium foil, Copper Foil or conductive tape.
7. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: described conductive film is closely wound around the cable position 2 ~ 3 layer of described insulating sheath cable through cable penetrating cylinder.
8. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 1 penetrating cable, is characterized in that: the ferromagnetic adhesive tape choke of described flexibility substitutes.
9. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 2 penetrating cable, is characterized in that: described wire ball is mixed by the proportion of 2:3 ~ 4:3 by stainless steel wire and copper wire.
10. the shielding processing device of shielding cabin peculiar to vessel as claimed in claim 2 penetrating cable, is characterized in that: the length of described cable penetrating cylinder is 290 ~ 310mm; The coiling length of described conductive film on insulating sheath cable is 310 ~ 330mm, the wide 20 ~ 30mm of the ferromagnetic adhesive tape of described flexibility, thick 3 ~ 5mm, flexible ferromagnetic adhesive tape and conductive film be spaced apart 8 ~ 12mm; The length that described wire ball is filled in cable penetrating cylinder is 210 ~ 230mm; Length filled by ionic conduction cream is 15 ~ 25mm; It is 15 ~ 25mm that waterproof sealing clay fills length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310497554.2A CN103491756B (en) | 2013-10-22 | 2013-10-22 | The shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310497554.2A CN103491756B (en) | 2013-10-22 | 2013-10-22 | The shielding processing device of a kind of shielding cabin peculiar to vessel penetrating cable |
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| CN103491756A CN103491756A (en) | 2014-01-01 |
| CN103491756B true CN103491756B (en) | 2016-03-09 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG10201502185QA (en) * | 2015-03-20 | 2016-10-28 | Jabil Circuit Singapore Pte Ltd | Rf interference choke device and rf testing apparatus incorporating the same |
| CN108599091A (en) * | 2018-05-31 | 2018-09-28 | 中国舰船研究设计中心 | A kind of underwater coupling arrangement of ship cable |
| CN109899680B (en) * | 2019-02-22 | 2021-02-19 | 太平洋海洋工程（舟山）有限公司 | Cable cabin penetrating sealing device for FSRU |
| CN114554818B (en) * | 2022-02-24 | 2024-05-28 | 北京卫星环境工程研究所 | Conformal structure for enhancing electromagnetic tolerance performance and method thereof |
| CN114696276A (en) * | 2022-04-01 | 2022-07-01 | 中国舰船研究设计中心 | Cable sealing device for ship penetrating through radioactive source storage cabin |
| CN116500348A (en) * | 2023-06-30 | 2023-07-28 | 北京智芯微电子科技有限公司 | Low-frequency electromagnetic measuring device and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192568A (en) * | 1997-03-03 | 1998-09-09 | 马明朴 | Conductive fiber core flexible cable and process for producing same |
| CN101031196A (en) * | 2006-02-28 | 2007-09-05 | 江南造船(集团)有限责任公司 | Cable penetrating technology for electromagnetic shielding cabin |
| CN101841343A (en) * | 2009-03-17 | 2010-09-22 | 索尼公司 | Receiving equipment |
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2013
- 2013-10-22 CN CN201310497554.2A patent/CN103491756B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192568A (en) * | 1997-03-03 | 1998-09-09 | 马明朴 | Conductive fiber core flexible cable and process for producing same |
| CN101031196A (en) * | 2006-02-28 | 2007-09-05 | 江南造船(集团)有限责任公司 | Cable penetrating technology for electromagnetic shielding cabin |
| CN101841343A (en) * | 2009-03-17 | 2010-09-22 | 索尼公司 | Receiving equipment |
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