Air conditioner anti-cold air control system, method and air conditioner

Abstract

The invention provides an air-conditioning anti-cold wind control system, method and air-conditioning, the system comprises: an outdoor heat exchanger, a main circuit throttling device, an indoor heat exchanger, a branch circuit throttling device and a refrigerant mixer; an outdoor heat exchanger , The main circuit throttling device and the indoor heat exchanger are connected in series to form the main circuit pipeline, and the branch circuit throttling device and the refrigerant mixer are connected in series to form the branch circuit; the branch circuit throttling device is arranged in the outdoor heat exchanger and the indoor heat exchange The refrigerant mixer is arranged between the main circuit throttling device and the indoor heat exchanger. The invention converts the high-temperature gaseous refrigerant output from the indoor heat exchanger into a high-temperature liquid refrigerant through the branch throttling device, so that the high-temperature liquid refrigerant flows into the refrigerant mixer and is mixed with the low-temperature liquid refrigerant to obtain a higher temperature mixed liquid refrigerant, so that the When the mixed liquid refrigerant flows through the indoor heat exchanger, the temperature of the inner plate of the indoor heat exchanger is increased, so that the temperature of the inner plate can reach the temperature required for heating by the air conditioner more quickly, and the time for preventing cold air can be shortened.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, and in particular, to an air conditioner anti-cold air control system and method, and an air conditioner. Background technique [0002] During the heating process of the air conditioner, since the frost on the outdoor condenser will affect its heating capacity, it is set to automatically defrost when the frost layer of the condenser is too thick (that is, when the temperature of the outer coil is too low). The temperature of the inner coil of the indoor evaporator is often too low, and it needs to run for a certain period of time. When the temperature of the evaporator rises to a certain value, the indoor fan is started and the fan speed is gradually increased to perform normal heating, so as to avoid blowing out cold air and affecting human comfort. After defrosting, the shutdown of the internal fan and the time of low speed are called the anti-cold wind stage. When the anti-col...

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Problems solved by technology

[0003] The invention provides an air conditioner anti-cold wind control system, method and air conditioner to solve the defect of the air conditioner in the prior art that the anti-cold wind time is too long

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