Aluminum ventilated Shielded Window
Classification:
Aluminum ventilated Shielded Window is a hexagonal honeycomb shielding component made of ordinary aluminum foil by special process. It has the advantages of large ventilation volume, light weight and good electrochemical corrosion resistance. It is widely used in various electronic equipment, especially in military equipment. Under the conditions of the same pore size, the same material and the same thickness, the type of conductive coating on the surface determines the shielding efficiency. The aluminum waveguide ventilation window developed and produced by the company adopts conductive oxidation, nickel-phosphorus alloy plating and other surface conductive treatment technology, and installs the screen combination liner with excellent shielding performance in the frame, which not only ensures the installation and maintenance of the ventilation window, but also prevents the electromagnetic leakage in the gap between the frame and the chassis.
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Details Introduction
Honeycomb Shielded Ventilation Panel
| Frequency | 14KHZ | 100KHZ | 100MHZ | 450MHZ | 1GHZ | 10GHZ | 18GHZ | 40GHZ |
| Shielding effect | ≥100dB | ≥110dB | ≥120dB | ≥140dB | ≥140dB | ≥130dB | ≥120dB | ≥100dB |
Commonly used product model specifications
| Model | Flange Frames | Orifice plate area | depth of hole（mm） | aperture（mm） | Applicable frequency（HZ） |
| KAT-2000-181 | 370×370 | 300×300 | 47 | 5.2 | 14K-18G |
| KAT-2000-182 | 370×670 | 300×600 | 47 | 5.2 | 14K-18G |
| KAT-2000-183 | 670×670 | 600×600 | 47 | 5.2 | 14K-18G |
| KAT-2000-401 | 370×370 | 300×300 | 40 | 3.2 | 14K-40G |
| KAT-2000-402 | 370×670 | 300×600 | 40 | 3.2 | 14K-40G |
| KAT-2000-403 | 670×670 | 600×600 | 40 | 3.2 | 14K-40G |
Other specifications can be customized according to customer needs
●Wind resistance characteristic
47mm thick 5.2 hole wind resistance test results
| Air volume (m3/h) inspection items | 680 | 1000 | 1250 | 1630 | 2000 | 2330 | 2657 |
| Static pressure loss (Pa) | 8.88 | 16.56 | 23.42 | 35.94 | 51.29 | 69.06 | 85.31 |
| Total pressure loss (Pa) | 11.52 | 22.28 | 32.35 | 51.13 | 74.15 | 100.09 | 125.66 |
| Drag coefficient | 4.35 | 3.89 | 3.62 | 3.37 | 3.25 | 3.22 | 3.11 |
Note: The effective area of the tested part is 300mm*300mm
40mm thick 3.2 hole wind resistance test results
| Air volume (m3/h) inspection items | 680 | 1000 | 1250 | 1630 | 2000 | 2330 | 2657 |
| Static pressure loss (Pa) | 11.97 | 21.3 | 29.88 | 44.32 | 61.37 | 76.73 | 93.79 |
| Total pressure loss (Pa) | 14.55 | 27.02 | 35.81 | 59.51 | 84.24 | 107.76 | 134.14 |
| Drag coefficient | 5.49 | 4.72 | 4.34 | 3.92 | 3.69 | 3.47 | 3.32 |
Note: The effective area of the tested part is 300mm*300mm
Dedicated shielding ventilation panels for chassis and cabinets
● Wind resistance characteristics
12.7mm thick 3.2 hole wind resistance test result
| Air volume (m3/h) inspection items | 200 | 800 | 1250 | 1500 | 1800 |
| Static pressure loss (Pa) | 6.2 | 46.3 | 95.9 | 131.6 | 178.8 |
| Total pressure loss (Pa) | 9.9 | 104.8 | 238.8 | 337.4 | 475.1 |
| Drag coefficient | 2.7 | 1.79 | 1.67 | 1.64 | 1.6 |
Note: The effective area of the tested part is 150mm*150mm
● Performance comparison
Different types of shielding ventilation components, the shielding mechanism, shielding performance and wind resistance characteristics are not the same, the engineering design should focus on the shielding and ventilation requirements, and take into account the volume, weight, cost, dust, corrosion and other comprehensive requirements to select the appropriate shielding ventilation components. The following is a comparison of the comprehensive performance of several shielded ventilation components (materials).
| Shield Ventilation Component Types | Shielding performance | wind resistance | Dust resistance | Electrochemical corrosion resistance | Thickness, weight | |
| Applicable frequency band (Hz) | Shielding effectiveness (dB) | |||||
| Aluminium waveguide vent window | 150K～18G | 60～100 | Small Poor | dust filter required Better | Good | Thick and light |
| Steel waveguide vent window | 14K～40G | 80～120 | Small Poor | dust filter required Fair | Average | Thick and heavy |
| Foamed metal vent window | 10K～18G | 90～120 | Small Good | Small Good, corrosion resistance Good |
Good
|
Thin thickness, light weight |
Note:
● The surface stroke resistance characteristic is the characteristic of no air filter, if the air filter is installed, the wind resistance will be increased to a certain extent;
● Because the foamed metal ventilation window material is made of metal, it can be used to filter high temperature gas or corrosive gas compared with other ordinary dustproof materials.
Keyword:
Aluminum ventilated Shielded Window
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FACTORY
Contact Information
Tel: +86 139 1078 5105
Add: No. 2402, 24th Floor, Building 2, Shangdu Apartment, Guanggu Pedestrian Street, Wuchang, Wuhan City, Hubei Province
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