Compressor exhaust pressure adjusting method and air conditioner

Abstract

The invention provides a compressor exhaust pressure adjusting method and an air conditioner. The method comprises the steps that S1, the outdoor environment temperature Ta and the condenser coil actual temperature Tc' are detected, and the value of the condenser coil actual temperature Tc' is corrected according to the outdoor environment temperature Ta to obtain the condenser coil temperature Tc; S2, the running frequency adjusting condition P1 of a compressor and the rotating speed adjusting condition V of a fan are determined according to the relation between the condenser coil temperature Tc and the coil temperature threshold value; S3, the running frequency adjusting condition P2 of the compressor is determined according to the relation between the air conditioner running current Ic and the current threshold value; and S4, the running frequency of the compressor and the rotating speed of the fan are adjusted according to the running frequency adjusting conditions P1 and P2 of the compressor and the rotating speed adjusting condition V of the fan. The compressor exhaust pressure adjusting method and the air conditioner have the advantages that the detection accuracy is high, the number of times of air conditioner shutdown protection can be effectively reduced, and the running stability and comfort of the air conditioner are improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for adjusting the discharge pressure of a compressor and an air conditioner. Background technique [0002] With the continuous upgrading of air-conditioning products, consumers have higher and higher requirements for the comfort and stability of air-conditioning products. Generally, after the air conditioner starts running, with the continuous operation of the compressor, the refrigerant forms a high-pressure side and a low-pressure side in different areas of the refrigerant pipeline. Usually, the pressure on the high-pressure side needs to be controlled within a reasonable range to ensure the stability of the air conditioner. Running to avoid potential safety hazards due to excessive pressure. [0003] Especially in high temperature conditions, the cooling load of the air conditioner is large, and the compressor usually runs at the highest frequency. At this t...

AI Technical Summary

Problems solved by technology

[0007] The present invention designs a method for adjusting the exhaust pressure of a compressor and an air conditioner to overcome the low detection accuracy of the exhaust pressure of the compressor in the prior art, which is easy to misjudgment, and cannot detect and predict the exhaust pressure of the compressor. Judgment and adjustment, so that the air conditioner is likely to enter the shutdown protection state frequently, which affects the comfort and stability of the air conditioner.

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