Defrosting speed adjusting method, defrosting speed adjusting device and air conditioner

Abstract

The invention provides a defrosting speed adjusting method, a defrosting speed adjusting device and an air conditioner. The defrosting speed adjusting method comprises the steps of determining the defrosting speed of each refrigerant pipe of multiple refrigerant pipes in a condenser of an outdoor unit of the air conditioner, judging whether the defrosting speed of any refrigerant pipe of the multiple refrigerant pipes is smaller than or equal to preset speed, and adding a refrigerant branch communicated with any refrigerant pipe between any refrigerant pipe and a four-way valve of the air conditioner so as to improve the defrosting speed of any refrigerant pipe when a judgment result is yes. By means of the technical scheme, the defrosting speeds of the multiple refrigerant pipes can be more uniform, the multiple refrigerant pipes can simultaneously complete defrosting basically, accordingly the defrosting time required by the multiple refrigerant pipes is shortened, a refrigerant can be further prevented from continuously flowing through the refrigerant pipes completing defrosting earlier, accordingly heat loss of the refrigerant is reduced, and the heating effect of the air conditioner is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a defrosting rate regulating method, a defrosting rate regulating device and an air conditioner. Background technique [0002] At present, when the air conditioner is in the heating mode, frost condensation will occur in multiple refrigerant pipelines in the condenser of the air conditioner. In the related art, a reverse refrigeration cycle is usually used for defrosting, but the The scheme of defrosting by condensation in multiple refrigerant pipelines has the following two disadvantages: [0003] 1. The defrosting rate is not uniform, and the defrosting rate of each refrigerant pipeline in multiple refrigerant pipelines is different, that is, the defrosting time of each refrigerant pipeline is different, resulting in a long defrosting time as a whole, especially in the In the collecting pipe below the condenser, when the refrigerant flows through multiple refrigerant ...

AI Technical Summary

Problems solved by technology

[0003] 1. The defrosting rate is not uniform, and the defrosting rate of each refrigerant pipeline in multiple refrigerant pipelines is different, that is, the defrosting time of each refrigerant pipeline is different, resulting in a long defrosting time as a whole, especially in the In the collecting pipe below the condenser, when the refrigerant flows through multiple refrigerant pipes and reaches the collecting pipe, the temperature of the refrigerant is already low, resulting in a slow defrosting rate

[0004] 2. Heat waste of refrigerant

The refrigerant pipeline that has been defrosted first continues to have high-temperature refrigerant flowing through it, which causes the heat of the refrigerant to be lost, reduces the utilization efficiency of the refrigerant, and affects the heating effect of the air conditioner

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