Defrosting control method, defrosting control system and air conditioner

Abstract

The invention provides a defrosting control method, a defrosting control system and an air conditioner. The defrosting control method comprises the following steps of when the air conditioner is under a heating mode, detecting system parameters of the air conditioner; judging whether the system parameters achieve a preset defrosting condition or not; and if yes, controlling a stop valve to close, controlling an electric heating part to operate for heating a heat accumulator, and according to the changing conditions of operating parameters when the air conditioner is heated for defrosting, controlling the working condition of the stop valve and the working condition of the electric heating part, so that the air conditioner operates under different heating modes. According to the defrosting control method provided by the invention, the air conditioner performs defrosting under a heating mode, so that favorable defrosting effects and favorable heating effects are guaranteed, and the using comfortableness of a user is improved; and according to the changing conditions of the operating parameter when the air conditioner is heated for defrosting, the working condition of the stop valve and the working condition of the electric heating part are controlled to enable the air conditioner to operate under different heating modes, so that favorable defrosting effects and favorable heating effects are guaranteed, and the using comfortableness of a user is improved.

Description

Technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a defrosting control method, a defrosting control system and an air conditioner. Background technique [0002] The air conditioner in the related art usually uses the discharge temperature of the compressor for hot gas frosting. When the defrosting starts, the four-way valve reverses to make the outdoor heat exchanger radiate heat, and the indoor heat exchanger absorbs heat, resulting in indoor ambient temperature In this way, in a colder environment, the air conditioner runs the refrigeration cycle, which will cause the room temperature to be hot and cold, affecting the comfort of the user; and during the defrosting process, the frost on the lower part of the outdoor heat exchanger is difficult to remove. When the upper part has been defrosted, it must wait until the lower part of the outdoor heat exchanger is completely defrosted before it can complete the defrost a...

AI Technical Summary

Problems solved by technology

[0002] The air conditioner in the related art usually uses the discharge temperature of the compressor to perform hot air defrosting. When defrosting starts, the four-way valve is reversed so that the outdoor heat exchanger releases heat, and the indoor heat exchanger absorbs heat, resulting in indoor ambient temperature. In this way, in a colder environment, the air conditioner runs a refrigeration cycle, which will cause the room temperature to be hot and cold, affecting the comfort of the user; When the upper part has been defrosted, it must wait until the lower part of the outdoor heat exchanger is completely defrosted to complete the defrosting and enter the normal heating operation state at the same time, so part of the heat is wasted and the defrosting process is prolonged. Reduced heating capacity and reduced overall heating effectiveness

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