Four-way valve defrosting backing up method of air conditioner without shutting down

Abstract

The invention relates to a four-way valve defrosting backing up method of air conditioner without shutting down, an operation method executed when the existing main control program of air conditioner enters defrosting stage, including the following stages: 1) whether the main control program enters the defrosting stage is judged, if no, the main control program is returned and is executed continuously, if yes, the next stage is carried out; 2) defrosting mode is determined and the defrosting stage is carried out; 3) defrosting is finished to return to the main control program. The defrosting mode includes a four-way valve defrosting mode and a compound defrosting mode. In the invention, when the main control program is executed to the defrosting stage, firstly whether an induction heater is normal and whether outdoor temperature is high are judged, and different defrosting modes are adopted according to the judging result. The defrosting mode is avoided to be operated without shutting down under abnormal condition. Thus, the service life of the air conditioner is ensured, defrosting effect under the condition that the air conditioner is not shut down is also ensured, and the service efficiency of the air conditioner is improved.

Description

technical field [0001] The invention relates to a defrosting method for an air conditioner. In particular, it relates to a backup method for defrosting a four-way valve when the air conditioner is not shutting down to ensure the defrosting effect when the air conditioner is not shutting down. Background technique [0002] Generally, an air conditioner is composed of a heater, a refrigerator, a purifier, etc., which can cool or heat or purify indoor air, and can also adjust indoor humidity to create a suitable indoor environment for users. [0003] If roughly classified, air conditioners can be classified into split type air conditioners and integrated type air conditioners. Split type and integrated type have the same function. The split-type air conditioner is provided with an indoor unit with cooling / heat release on the indoor side, and an outdoor unit with heat release / cooling and a compressor on the outdoor side, and the outdoor unit and the indoor unit are connected b...

AI Technical Summary

Problems solved by technology

[0009] 1. There is no process of judging whether the induction heater is faulty in the main control program. Once the induction heater is faulty, it may cause dangerous working conditions;

[0010] 2. There is no process of judging the temperature situation during defrosting in the main control program, because the temperature is too low or too high, it is difficult to run the non-stop defrosting method;

[0011] 3. Incomplete defrosting

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