An electrical cabinet with an airflow circulation device

Abstract

The invention relates to an electrical cabinet with an air flow circulating device, include a plate shell, vertical beam, Fan, air inlet cover, the plate and shell are arranged on the outside of the frame composed of the cross beam and the vertical beam to form a sealed cabinet body, The vertical beam and the cross beam are both hollow structures, and are provided with an installation hole and anair outlet hole. The fan is arranged on the upper part of the cabinet body. The air outlet of the fan sucking hot air from the cabinet is connected with the air inlet of the air inlet cover, and the air outlet of the air inlet cover is communicated with the hollow channel of the vertical beam from the upper part of the vertical beam. The invention introduces the hot air in the fan suction cabinetinto the vertical beam through the air inlet cover, An air duct is formed in the inside of the cabinet to realize circulating flow inside the cabinet, and hot air is exchanged with the outside througha metal plate and shell, so that special heat exchange equipment is not required to be added, and the external air of the cabinet body is not required to be sucked into the cabinet body to meet the heat dissipation effect, and the protection level of the cabinet body is ensured.

Description

technical field [0001] The invention relates to an electrical cabinet body, in particular to an electrical cabinet with an air circulation device. Background technique [0002] The electrical cabinet is generally composed of beams and vertical beams, and the outside is equipped with a plate shell to form a square cabinet body. The vertical beams and beams are hollow structures, and equidistant fixing holes are opened on the surface as fixing holes for fixing component mounting plates. When electrical devices are working with electricity, they will generate heat at the same time. In order to ensure that the generated heat does not accumulate in the cabinet, the temperature will rise beyond the normal operating temperature of the electrical devices. Generally, a cooling system is installed on the cabinet body. [0003] At present, the heat dissipation system of the electrical cabinet generally adopts two methods. The first way is to install air supply and exhaust fans on the...

AI Technical Summary

Problems solved by technology

The first way is to install air supply and exhaust fans on the cabinet. When the fan starts, the colder air outside the cabinet is sent into the inside of the cabinet, and the hotter air inside the cabinet is discharged. This method has low cost and good heat dissipation effect. Obviously, but the biggest disadvantage is that the dust and moisture in the air outside the cabinet will inevitably enter the interior of the cabinet, which will easily affect the insulation performance of electrical components

[0004] The second way is to use radiators, such as air-water, air-air, and oil-air radiators. This method can ensure the IP protection level of the unit, but the biggest disadvantage is the high equipment cost, which takes up big space

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