Air conditioner and control method thereof

Abstract

The invention aims at providing an air conditioner which is mainly used for solving the problems of poor heat dissipation effect of an electrical appliance box and long defrosting time of an existing air conditioner. The air conditioner is added with a second heat exchanger system on the basis of an original heat exchange system, and further provided with a coolant branch to directly lead a first coolant flowing through a pipeline between an outdoor heat exchanger and an indoor heat exchanger in an air suction port of a first compressor; heat emitted by heating components in the air conditioner is absorbed through the second heat exchanger system and the absorbed heat is transferred to the first coolant in the coolant branch; in such a manner, a suction vapor superheat degree and a mass flow of the first compressor are improved while the heat dissipation problem is well solved, and further, the reliability of the air conditioner is improved and defrosting is accelerated; as a result, the comfort of use for users is improved. Meanwhile, the invention provides a control method of the air conditioner.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an air conditioner and a control method thereof. Background technique [0002] High-power air conditioners, especially multi-connected air conditioners, have more electrical components in the electrical box and generate a lot of heat. At present, the commonly used heat dissipation method for the electrical box generally adopts air-cooled ribs or internal refrigerant branches in the system to dissipate heat. Among them, the air-cooled heat dissipation method is bulky, heavy, and the heat dissipation effect is poor; while the internal refrigerant branch heat dissipation method of the system is to lead a refrigerant from the system to dissipate heat from the electrical box, the heat generation is not easy to control, and the effect is not ideal. . In addition, the current multi-connected defrosting is relatively slow, and the user's comfort level is poor. [0003] In view of the ab...

AI Technical Summary

Problems solved by technology

Among them, the air-cooled heat dissipation method is bulky, heavy, and the heat dissipation effect is poor; while the internal refrigerant branch heat dissipation method of the system is to lead a refrigerant from the system to dissipate heat from the electrical box, the heat generation is not easy to control, and the effect is not ideal.

In addition, the current multi-line defrosting is slow, and the user's comfort is poor

[0003] In view of the above problems, it is urgent to provide a new air conditioner to solve the problems in the prior art that the heat dissipation effect of the electrical box is poor and the defrosting speed of the air conditioner is slow

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