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A defrosting method for an air-conditioning system and the air-conditioning system

An air-conditioning system, a technology for preset time, applied in heating and ventilation control systems, heating and ventilation safety systems, control inputs involving air characteristics, etc. Effect

Active Publication Date: 2020-12-01
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Considering the design of indoor unit, air duct, evaporator and selection of fans, this solution is difficult to implement and has high cost; the patent document with publication number CN106524399A is to set multiple condensers and use bypass valves to make the required condensation When defrosting the evaporator, other condensers act as evaporators to defrost, which is consistent with the principle of the previous patent document. An additional heat exchanger is set instead of the evaporator to participate in defrosting. This solution also has the problems of difficulty in implementation and high cost

Method used

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  • A defrosting method for an air-conditioning system and the air-conditioning system
  • A defrosting method for an air-conditioning system and the air-conditioning system

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Embodiment Construction

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0039] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or mo...

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Abstract

An air-conditioning system and its control method, the air-conditioning system includes a compressor, a four-way valve, an evaporator, a condenser, a first throttling device, the compressor passes through the four-way valve and the condenser, the first throttling device, and the evaporator The compressor forms the first circuit; the compressor forms the second circuit through the fluid control valve, the defrosting heat exchanger, the second throttling device, and the auxiliary heat exchanger; the defrosting heat exchanger can transfer its own heat through heat conduction Give the condenser to defrost the condenser. The present invention adopts a relatively independent defrosting system, which can reduce the frosting probability of the condenser only by slightly modifying the existing models, and can realize continuous heating of the indoor unit during defrosting without shutting down even if frosting occurs.

Description

technical field [0001] The present invention relates to an air conditioning system and its control method, in particular to an air conditioning system and its defrosting control method. Background technique [0002] In the prior art, when the air-conditioning system, especially the heat pump air-conditioning system, is heating, frosting is prone to occur. When the air-conditioning system is defrosting, a four-way valve, that is, a four-way reversing valve, is used to achieve defrosting. At this time, the air conditioning system needs to stop heating and run cooling, which will lead to poor user experience. [0003] To sum up, it is necessary to propose an air conditioning system capable of continuous heating and its control method. In the patent document whose publication number is CN108131858A, defrosting is realized by setting two evaporators in the indoor unit. When defrosting, one evaporator participates in defrosting, and the other normally heats up. Considering the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/04F25B47/02F24F11/41F24F11/64F24F11/61F24F110/10F24F110/12F24F140/20F25B41/20
CPCF25B13/00F25B47/02F24F11/41F24F11/64F24F11/61F24F2110/10F24F2110/12F24F2140/20F25B41/20
Inventor 柏秋实吴一迪李思怡朱振杨健廉李慧
Owner GREE ELECTRIC APPLIANCES INC
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