CN102573434A - Shielding method for inhibiting link gap leakage of square cabin wall plate - Google Patents
Shielding method for inhibiting link gap leakage of square cabin wall plate Download PDFInfo
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- CN102573434A CN102573434A CN 201010621499 CN201010621499A CN102573434A CN 102573434 A CN102573434 A CN 102573434A CN 201010621499 CN201010621499 CN 201010621499 CN 201010621499 A CN201010621499 A CN 201010621499A CN 102573434 A CN102573434 A CN 102573434A
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- adhesive tape
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Abstract
The invention belongs to the technical field of electromagnetic shielding, and particularly relates to a shielding method for inhibiting link gap leakage of a square cabin wall plate. The shielding method is characterized in that: a gap 5 exists between a metal plate 1 and a metal plate 2; a slippery copper adhesive tape 4 is fixed on the metal plate 1 and the metal plate 2 by adhering and covers the whole gap 5 existing between the metal plate 1 and the metal plate 2; a slippery aluminum adhesive tape 3 is adhered to the upper surface of the slippery copper adhesive tape 4; the area of the slippery aluminum adhesive tape 3 is greater than that of the slippery copper adhesive tape 4; and the slippery aluminum adhesive tape 3 covers the whole upper surface of the slippery copper adhesive tape 4, so that the periphery of the slippery aluminum adhesive tape 3 are fixedly adhered to the metal plate 1 and the metal plate 2. According to the shielding method for inhibiting the link gap leakage of the square cabin wall plate, a treatment method is simple and reliable, and the shielding effect coverage frequency range of joint seams of metal connecting plates and shielding components of shielding facilities can be expanded, so the shielding method is suitable for shielding gap electromagnetic leakage of connections between an electronic square cabin and various shielding facilities.
Description
Technical field
The invention belongs to the electromangnetic spectrum field, particularly a kind of metal fishplate bar, shield member connect a kind of screen method that is used to suppress shelter wallboard link slit leakage of electromagnetic slot-leakage.
Background technology
At present, along with the modern military development of electronic technology, make the residing electromagnetic environment of military electronics embody following characteristics:
● frequency range is towards two extreme expansions fast of low frequency, high frequency, the electromagnetic frequency scope of using at present from infrasonic tens Hz to optical communication, tens GHz such as infrared, photoelectricity are to GHz up to a hundred;
● frequency spectrum is intensive, and a large amount of electronics frequency spectrums mainly concentrate on 9kHz～40GHz;
● the closeness and the integrated level of equipment or system increase greatly, cause originally many efficient ways such as the spatial separation that in little equipment of volume, limited space or system, can adopt, layout to adopt;
● the sensitivity of receiving equipment and system improves, and causes its anti-jamming capacity greatly to weaken;
● the transmitting power of high-power transmitter increases, and causes its interference to other equipment or system to increase;
● many commander's information systems are faced with the requirement that information security is maintained secrecy.
Because the requirement of operational mobility, the shielding shelter has obtained to use widely in military electronic system.Above-mentioned factor makes the electromagnetic environment of equipment or system worsen, and causes the not good electronics shelter of screening effectiveness serious electromagnetic leakage phenomenon to occur.Shelter shielding processing method in the past often adopts the metal solder mode, but tiny hole seam leakage on solder side, occurs easily like this, and electromagnetic interference that not only can not good restraining 9kHz～18GHz has also been wasted great amount of time.Obviously,, screen wide for frequency coverage imitated when requiring high electronics shelter rectification and making and do not met the demands.
Summary of the invention
The object of the present invention is to provide a kind of screen method that reveal in shelter wallboard link slit that is used to suppress; This processing method is simple, reliable; And can make the screening effectiveness covering frequence scope of metal fishplate bar, shield member seam of shield facility wide, be applicable to the shielding that is connected electromagnetic slot-leakage of electronics shelter and various shield facilities.
Technical scheme of the present invention is: a kind of screen method that reveal in shelter wallboard link slit that is used to suppress is provided; It is characterized in that: between two metallic plates 1 and metallic plate 2, have slit 5; Smooth copper adhesive tape 4 is adhesively fixed on two metallic plates 1 and the metallic plate 2 and all covers on the slit 5 that exists between metallic plate 1 and the metallic plate 2; Smooth copper adhesive tape 4 upper surfaces have covered smooth aluminum adhesive tape 3; The area of smooth aluminum adhesive tape 3 is greater than the area of smooth copper adhesive tape 4, and all covers smooth copper adhesive tape 4 upper surfaces, makes smooth aluminum adhesive tape 3 peripheral fixed bondings on two metallic plates 1 and metallic plate 2.
The copper base material thickness of described smooth copper adhesive tape 4 is 0.02mm～0.06mm, and band glue gross thickness is 0.06mm～0.1mm.
The copper substrate intensity of described smooth copper adhesive tape 4 is 35.5～49.7N/m, and adhesive strength is 3.83N/m, and the impedance through adhesive linkage is 0.005 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～80dB.
The aluminium base thickness of described smooth aluminum adhesive tape 3 is 0.03mm～0.07mm; Band glue gross thickness is 0.07mm～0.1mm.
The aluminium base intensity of described smooth aluminum adhesive tape 3 is 35.5～49.7N/m, and adhesive strength is 3.83N/m, and the impedance through adhesive linkage is 0.010 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～70dB.
Be connected with on the described smooth aluminum adhesive tape 3 and reinforce corner fittings 7.
Described reinforcing corner fittings 7 is fixing with metallic plate 2 with two metallic plates 1 through rivet 6 alternating expressions.
Said reinforcing corner fittings 7 is the 90 mutual vertical metal gussets of degree or the metal plate of 180 degree.
Described rivet 6 is the interior flanging formulas that link closely, distance≤5cm between adjacent two rivets 6.
The invention has the beneficial effects as follows: owing to adopt two material shieldings of smooth aluminum adhesive tape 3 and smooth copper adhesive tape 4; Can be good at having concurrently simultaneously skin effect and magnetic conduction effect; Make that shield effectiveness is splendid and the covering frequence scope is wide, method is simple, easy to assemble; Simultaneously this shield also specially to metallic plate with required shield member area is excessive, preponderance, the structure when seam is long, has increased through the fixing reinforcing corner fittings of rivet, because rivet the is interior flanging formula that links closely; Adjacent two rivet pitches≤5cm are not so can produce electromagnetic leakage.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the shield structural representation that embodiment 1 connects electromagnetic slot-leakage;
Fig. 2 is the reinforcing shield structural representation that embodiment 2 connects electromagnetic slot-leakage;
Among the figure: 1, right metallic plate; 2, left metallic plate; 3, smooth aluminum adhesive tape; 4, smooth copper adhesive tape; 5, slit; 6, rivet; 7, reinforce corner fittings.
Embodiment
The computational methods that the present invention is used to suppress the shielding revealed in shelter wallboard link slit are: according to following windage computing formula (following formula belongs to known formula):
For simultaneous a plurality of electromagnetic leakage key element N, establishing each screening effectiveness that leaks key element is SE
iI=1,2 ..., N, then i leakage rate of leaking key element does
In the formula, E
BeforeThe field that the signal field source is produced when shielding for not adding.
Then total leakage field does
The screening effectiveness of shelter
The present invention is not limited only to the foregoing description.The copper base material thickness of described smooth copper adhesive tape 4 is 0.02mm～0.06mm, and band glue gross thickness is 0.06mm～0.1mm.
The copper substrate intensity of described smooth copper adhesive tape 4 is 35.5～49.7N/m, and adhesive strength is 3.83N/m, and the impedance through adhesive linkage is 0.005 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～80dB.
The aluminium base thickness of described smooth aluminum adhesive tape 3 is 0.03mm～0.07mm; Band glue gross thickness is 0.07mm～0.1mm.Be connected with on the described smooth aluminum adhesive tape 3 and reinforce corner fittings 7.
The aluminium base intensity of described smooth aluminum adhesive tape 3 is 35.5～49.7N/m, and adhesive strength is 3.83N/m, and the impedance through adhesive linkage is 0.010 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～70dB.
Described reinforcing corner fittings 7 is fixing with metallic plate 2 with two metallic plates 1 through rivet 6 alternating expressions.
Described reinforcing corner fittings 7 is 90 mutual vertical metal gussets of degree or 180 degree metal plates.
Described rivet 6 is the interior flanging formulas that link closely, distance≤5cm between adjacent two rivets 6.
Claims (9)
1. one kind is used to suppress the screen method that reveal in shelter wallboard link slit; It is characterized in that: between two metallic plates (1) and metallic plate (2), have slit (5); Smooth copper adhesive tape (4) is adhesively fixed on two metallic plates (1) and metallic plate (2) is gone up and all cover on the slit (5) that exists between metallic plate (1) and the metallic plate (2); Smooth copper adhesive tape (4) upper surface has covered smooth aluminum adhesive tape (3); The area of smooth aluminum adhesive tape (3) is greater than the area of smooth copper adhesive tape (4), and all covers smooth copper adhesive tape (4) upper surface, makes the peripheral fixed bonding of smooth aluminum adhesive tape (3) on two metallic plates (1) and metallic plate (2).
2. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 1, it is characterized in that: the copper base material thickness of smooth copper adhesive tape (4) is 0.02mm～0.06mm, and band glue gross thickness is 0.06mm～0.1mm.
3. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 1; It is characterized in that: the copper substrate intensity of smooth copper adhesive tape (4) is 35.5～49.7N/m; Adhesive strength is 3.83N/m; Impedance through adhesive linkage is 0.005 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～80dB.
4. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 1, it is characterized in that: the aluminium base thickness of described smooth aluminum adhesive tape (3) is 0.03mm～0.07mm; Band glue gross thickness is 0.07mm～0.1mm.
5. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 1; It is characterized in that: the aluminium base intensity of described smooth aluminum adhesive tape (3) is 35.5～49.7N/m; Adhesive strength is 3.83N/m; Impedance through adhesive linkage is 0.010 Ω, and operating temperature range is-40 ℃～200 ℃, and screening effectiveness is 60dB～70dB.
6. according to according to the described a kind of screen method that is used to suppress shelter wallboard link slit leakage of claim 1, it is characterized in that: be connected with on the smooth aluminum adhesive tape (3) and reinforce corner fittings (7).
7. according to described a kind of based on suppressing the device that the shelter wallboard links the screen method of revealing in the slit according to claim 6, it is characterized in that: it is fixing with two metallic plates (1) and metallic plate (2) through rivet (6) alternating expression to reinforce corner fittings (7).
8. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 6, it is characterized in that: reinforcing corner fittings (7) is the 90 mutual vertical metal gussets of degree or the metal plate of 180 degree.
9. according to according to the described a kind of screen method that reveal in shelter wallboard link slit that is used to suppress of claim 7, it is characterized in that: rivet (6) is the interior flanging formula that links closely, distance≤5cm between adjacent two rivets (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010621499 CN102573434A (en) | 2010-12-20 | 2010-12-20 | Shielding method for inhibiting link gap leakage of square cabin wall plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010621499 CN102573434A (en) | 2010-12-20 | 2010-12-20 | Shielding method for inhibiting link gap leakage of square cabin wall plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102573434A true CN102573434A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010621499 Pending CN102573434A (en) | 2010-12-20 | 2010-12-20 | Shielding method for inhibiting link gap leakage of square cabin wall plate |
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| Country | Link |
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| CN (1) | CN102573434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502863A (en) * | 2019-08-29 | 2019-11-26 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of gap structure and its electromagnet shield effect appraisal procedure |
-
2010
- 2010-12-20 CN CN 201010621499 patent/CN102573434A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110502863A (en) * | 2019-08-29 | 2019-11-26 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of gap structure and its electromagnet shield effect appraisal procedure |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |