Air conditioner of machine cabinet

Abstract

The invention relates to an air conditioner of a machine cabinet. An inner circulation heat exchanging system is provided with an air inlet inside the cabinet, an air outlet inside the cabinet and an inner circulation heat exchanging cavity formed in enclosing mode. The inner circulation heat exchanging cavity comprises a fan inside the cabinet, an electrical component and an evaporator. An outer circulation heat exchanging system is provided with an air inlet outside the cabinet, an air outlet outside the cabinet and an outer circulation heat exchanging cavity formed in enclosing mode. The outer circulation heat exchanging cavity is provided with a fan outside the cabinet, a compressor and a condenser aligning to the air inlet outside the cabinet or the air outlet outside the cabinet. Sealing strips arranged on the periphery of the air outlet outside the cabinet or the air inlet outside the cabinet and capable of being extruded by the condenser to cause elastic deformation to seal the periphery of the condenser are arranged between the condenser and the air outlet outside the cabinet or the air inlet outside the cabinet. By means of the sealing strips, the direction of hot wind after passing through the condenser is guided so as to avoid affection on heat exchanging effect caused by streaming of hot air and cold air.

Description

technical field [0001] The invention relates to an air conditioner, in particular to a cabinet-specific air conditioner. Background technique [0002] With the acceleration of the industrialization process and the improvement of the automation of various equipment, sophisticated and complex electronic and electrical equipment such as servo amplifiers, PLCs, frequency converters, and uninterruptible power supplies are more and more widely used. These devices will generate a lot of heat when they work, and they are sensitive to high temperature. When the temperature in the control cabinet is higher than 40°C for a long time, the stability and life of the control equipment will be affected. The usual solution is to install an exhaust fan on the control cabinet to cool down. However, when the fan is working, external dust, oil and harmful gases will also enter the control cabinet and be electrostatically adsorbed by the circuit board or other surfaces. Over time, it will cause s...

AI Technical Summary

Problems solved by technology

During this process, it must be ensured that the hot air can only be discharged through the air outlet outside the cabinet, or that the external air can only be introduced through the air inlet outside the cabinet without convection with the air at the air inlet or outlet outside the cabinet, otherwise the hot and cold air will flow together After that, the heat transfer effect will be greatly affected

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