Air conditioner defrosting method and air conditioner

Abstract

The invention provides a defrosting method of an air conditioner and the air conditioner. The air conditioner comprises a compressor, an indoor heat exchanger, a throttling device and an outdoor heatexchanger, and the compressor, the indoor heat exchanger, the throttling device and the outdoor heat exchanger are connected successively through pipelines to form a circulation path. The defrosting method includes the steps that when the air conditioner meets a first defrosting condition, the air conditioner enters into a first defrosting mode, and in the first defrosting mode, the opening of thethrottling device reaches the maximum. According to the defrosting method of the air conditioner and the air conditioner, the defrosting effect is improved, the large fluctuation of the indoor environment temperature is avoided, and the reversing fault is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting method and the air conditioner. Background technique [0002] An air conditioner is a device capable of regulating indoor ambient temperature, and its operating modes generally include heating and cooling operations. [0003] When the air conditioner is in heating operation, if the temperature of the outdoor coil is too low under certain humidity conditions, it will cause frosting, and the frosting of the outdoor coil will reduce the heat exchange efficiency of the outdoor heat exchanger and affect the cooling performance of the air conditioner. The thermal effect reduces the comfort of the indoor environment and affects the user experience. Therefore, when the air conditioner is in heating operation, timely and effective defrosting of the outdoor coil of the air conditioner is required. [0004] However, the existing defrosting scheme sti...

AI Technical Summary

Problems solved by technology

[0005] 1. The existing reverse defrosting method takes a long time to defrost and consumes a lot of energy, which is likely to cause large fluctuations in the indoor ambient temperature and poor user comfort;

[0006] 2. The defrosting ability of the existing hot gas bypass defrosting method is poor, and its effective use environment is greatly restricted, such as incomplete defrosting below 0°C, which affects the heating effect

[0007] 3. The existing hot gas bypass defrosting method cannot be switched to reverse defrosting after the defrosting is completed, which affects the comfort and reliability of the air conditioner

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