Air conditioner, defrost control method and defrost control system

Abstract

The invention provides an air conditioner, a defrosting control method and a defrosting control system. The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, a throttling device, a heat accumulating assembly and a stop valve, wherein the heat accumulating assembly is arranged between the four-way valve and the outdoor heat exchanger, comprises a heat accumulator, a water feeding device, an electric heating piece, a first temperature detecting device and a second temperature detecting device; and the stop valve is arranged between the four-way valve and the outdoor heat exchanger, and is connected in parallel with the heat accumulating assembly. According to the air conditioner disclosed by the invention, the heat accumulating assembly enables the air conditioner to perform defrosting under a heating mode, so that the favorable defrosting effect and the favorable heating effect are guaranteed, and the usage comfort of users is improved; when heat accumulating materials are short of water and the defrosting effect is poor, the water can be supplied by the water feeding device, and the four-way valve is switched, so that the air conditioner performs defrosting under a refrigeration mode, and the favorable defrosting effect is guaranteed; and after water supply is completed, the four-way valve is switched, so that the air conditioner performs defrosting under the heating mode, and the usage comfort of the users is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner, a defrosting control method and a defrosting control system. Background technique [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 i...

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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