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Aluminum ventilated Shielded Window
Aluminum ventilated Shielded Window

Guinea Aluminum ventilated Shielded Window

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.

Category:

GuineaShielded Window

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Product Description

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.

 

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