Air conditioner and control method thereof

A technology for air conditioning and refrigerant, applied in heating and ventilation control systems, heating methods, household refrigeration devices, etc. The effect of improving the comfort of use

CN105423505AInactive Publication Date: 2016-03-23GREE ELECTRIC APPLIANCES INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-03-23
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0026] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. To avoid obscuring the essence of the present invention, well-known methods, procedures, procedures, and components have not been described in detail.

[0027] The air conditioner provided by the present invention includes a first heat exchange system. The first heat exchange system includes a first compressor, a four-way valve, an outdoor heat exchanger, an outdoor electronic expansion valve, an indoor heat exchanger, and an indoor electronic expansion valve. Through the first The heat exchange system performs conventional heating, cooling and dehumidification.

[0028] The air conditioner also includes a refrigerant branch cir...