Cabinet Blanking Panel

The function of cabinet blanking panel

In the composition of the cabinet accessories, there is an accessory called blind board, with 1U, 2U, 3U specifications, etc. In the selection, few people will choose the blind plate accessory, because most people think that the blind board is designed to make the vacant U look more beautiful and neat, to fill the U height of the vacancy. In fact, people ignore the biggest effect of this blind board, In fact, the designer designed the blind plate to solve the waste gas heat circulation: more effectively blocking the hot air and cold air, Avoid the short-circuit circulation of cold and hot air, The vast majority consider the cabinet as a rack used to carry physical IT equipment, Ignoring that it prevents blocking the hot air from the IT device and avoids entering the air inlet of the IT device, The heat is pressurized, Adding the suction of the cold air inlet may cause the hot air to be redrawn into the air inlet, From the above, we can clearly see that the hot air reaches the air inlet from the vacant U space, Mix the cold air from the air inlet and the hot air from the outlet into the IT equipment, Increase the cold air temperature at the air inlet. According to the parameters of relevant authoritative laboratory, the recycling of hot and cold air will cause the temperature of the IT equipment in the cabinet to rise by 8℃. Considering the cold air, the effective blocking blocks the hot air at the air outlet and avoid the recycling of hot and hot air.

Although the cabinet is generally considered only a mechanical support, it is essential to prevent the hot air excluded by the device from re-entering the device air inlet. The figure shows that the hot air of the cabinet before the installation of the blind plate brings back the hot air into the air inlet of the equipment, that is, the short circuit cycle. After the installation of blind meals, hot air is discharged from the equipment, and the cabinet and its blind plate provide a barrier function, truncating the path of the short circuit cycle of hot air, thus reducing the possibility of hot air entering the air inlet.

Current status of blind board:

Despite strong recommendations by major IT equipment manufacturers, a 90% or higher percentage of computer rooms actually ignore this. Hot air recirculation problems may cause the IT equipment problems to rise by 8℃. It is an extremely simple process that can be applied to almost all data rooms at a very low cost. Some cabinet configurations have exposed other defects that may be similar to the lack of blind installation. For example, the use of an ultra-wide cabinet may allow hot air to short-circuit through the side of the device. In addition, the use of trays to install IT equipment will cause the relevant position of the blind plate can not be installed, thus providing a fully open condition for the short-circuit cycle of hot air. In some standard 19-inch cabinets, air circuits exist around the rail, at the top and bottom of the cabinet. In this case, the installation of the blind plate can not fully control the short circuit circulation of air. These cabinets are not designed to apply to high load density machine room environments. By using blind boards and selecting cabinets that can effectively control the short circuit cycle can reduce the temperature of hot spots in the machine room and significantly improve the system availability.