Air conditioner capable of continuously heating and defrosting and control method of air conditioner

Abstract

The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner capable of continuously heating and defrosting and a control method of the air conditioner. The air conditioner capable of continuously heating and defrosting comprises an outdoor heat exchanger, an indoor heat exchanger, a compressor, a throttling device and a four-way valve, wherein the four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port and the second valve port are respectively communicated with the air suction end and the air exhaust end of the compressor, and the third valve port is communicated with the indoor heat exchanger; the outdoor heat exchanger comprises at least two outdoor heat exchanger units which are arranged in parallel, one end of each outdoor heat exchanger unit is connected with a reversing device in series, and each reversing device selectively enables the outdoor heat exchanger units to be communicated with the third valve port or the fourth valve port. Through the structure, low influence on indoor temperature during heating and defrosting processes of the air conditioner is realized, and the using comfort degree of the air conditioner is increased.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner capable of continuous heating and defrosting and a control method thereof. Background technique [0002] The traditional air conditioner system is mainly composed of a compressor, a condenser, a throttle valve, and an evaporator. For cooling and heating conversion, a four-way valve component is added to make the condenser and evaporator interchangeable, so as to realize the demand of cooling and heating at the same time. During the heating process, frost will form on the outer surface of the outdoor heat exchanger, which will affect the heat transfer performance of the outdoor heat exchanger. When it is necessary to remove the frost on the outdoor heat exchanger, the four-way valve needs to be reversed. At this time, the condenser and the evaporator are interchanged, and the indoor heat is used to melt the frost of the condenser, which reduces the indo...

AI Technical Summary

Problems solved by technology

When it is necessary to remove the frost on the outdoor heat exchanger, the four-way valve needs to be reversed. At this time, the condenser and the evaporator are interchanged, and the indoor heat is used to melt the frost of the condenser, which reduces the indoor heating effect and affects comfort

[0003] Aiming at the influence that the defrosting process will have on the indoor temperature, scientific and technological workers have made improvements to the existing air conditioners, such as adding auxiliary heating components (such as electric heaters) to the outdoor heat exchanger, although the auxiliary electric heating components can Defrost the outdoor heat exchanger when the room temperature is affected, but generally the energy consumption of auxiliary heating components is high, and the defrosting efficiency is low

[0004] In view of the above problems, we need a system that can realize that the indoor temperature will not be greatly affected during the heating and defrosting process, and the abnormal throttling noise in the room caused by the shutdown of the air conditioner will not affect the use of the air conditioner. Comfortable air conditioner capable of continuous heating and defrosting with high defrosting efficiency and low energy consumption and its control method

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