The heat dissipation design of the chassis cabinet is to increase the blackness of the inner and outer surfaces of the chassis, open ventilation holes, etc., which can reduce the temperature. The effect of high blackness on the inner and outer surfaces of the chassis is better than that of low blackness. The heat dissipation effect of high blackness on both sides of the chassis is better than that on one side. On the basis of increasing the blackness on the inner and outer surfaces of the chassis, reasonably improving the ventilation structure and strengthening the convection of the cooling air can significantly reduce the temperature inside the equipment.

The ventilation hole is opened on the chassis cabinet to take advantage of the convection heat transfer effect of cold air, which can be comprehensively considered according to the requirements of heat dissipation and electromagnetic compatibility, and the heat in the ventilation dispersion area is the standard.

The basic principle of opening ventilation holes: the opening of ventilation holes should be conducive to the formation of an effective convection channel for air flow, the air inlet should be aligned with the heating element as much as possible, and the air inlet should be far away from the outlet hole to prevent short circuit of air flow. It should be opened in the corresponding position with a large temperature difference, and the air inlet should pay attention to dust prevention and electromagnetic leakage.

Equipment chassis rack processing analysis of heat dissipation design principles:

1. Improve the heat transfer capacity of the internal electronic components of the equipment, such as the casing.

2. Improve the heat transfer capacity of the chassis to the outside.

3. Minimize the thermal resistance along the heat transfer path to form a low thermal resistance heat flow path to ensure that the equipment operates normally within the allowable temperature range.