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Defrosting frequency control method and air conditioning system

A frequency control and controller technology, applied in heating and ventilation control systems, heating and ventilation safety systems, refrigerators, etc., can solve the problems affecting indoor comfort, low defrosting frequency, indoor temperature drop, etc. The effect of user experience and high comfort

Active Publication Date: 2022-04-22
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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  • Claims
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Problems solved by technology

The defrosting frequency of the compressor is very important to the defrosting process. The defrosting frequency of the existing air conditioners is mostly fixed, which easily leads to the following situations in the defrosting process: 1) The defrosting frequency setting 2) If the defrosting frequency is set high, the indoor temperature will drop significantly in a short period of time, which will affect the comfort of the room.

Method used

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  • Defrosting frequency control method and air conditioning system
  • Defrosting frequency control method and air conditioning system
  • Defrosting frequency control method and air conditioning system

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Embodiment Construction

[0049] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be 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 scope of the invention to those skilled in the art.

[0050]The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of ...

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Abstract

The invention provides a defrosting frequency control method and an air conditioning system, and belongs to the technical field of air conditioners. The method comprises the following steps that a defrosting mode is started, the compressor operation frequency F0 in the heating attenuation period is determined, and initial correction of the compressor operation frequency correction F in the initial defrosting stage is determined; the operation frequency F initial stage of the defrosting initial stage compressor is corrected and determined according to F0 and F initial stage; determining the medium-term correction of the operation frequency correction quantity F of the compressor in the medium-term defrosting; the operation frequency F middle stage of the defrosting middle stage compressor is corrected and determined according to the F initial stage and the F middle stage; determining the last-stage correction of the compressor operation frequency correction F in the last stage of defrosting; and according to the F0 and Flast phase correction, the running frequency Flast phase of the compressor at the defrosting last phase is determined. According to the method, the operation frequency of the compressor in the defrosting mode can be adjusted in stages, so that on the premise that the defrosting effect is guaranteed, the indoor high comfort is kept, and the good use experience is provided for a user.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a defrosting frequency control method and an air conditioning system. Background technique [0002] When the air conditioning system runs in heating mode for a long time in a low-temperature environment in winter, the surface of the outdoor heat exchanger is prone to frost, and the frost layer will affect the heat exchange effect of the air conditioner. The existing common way to solve the frosting of the air conditioner is: when the air conditioner enters the defrosting mode, the air conditioner switches from heating operation to cooling operation, and the frequency of the compressor will be adjusted to the target defrosting frequency. At the same time, other components are controlled cooperatively, so that the higher temperature refrigerant flows through the outdoor heat exchanger, increasing the surface temperature of the heat exchanger, melting the frost layer, and r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/61F24F11/64F24F11/65F24F11/86F24F11/88F25B13/00F25B47/02F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F11/86F24F11/88F25B13/00F25B47/02F24F2140/20Y02B30/70
Inventor 熊绍森廖敏连彩云梁之琦徐耿彬黎优霞
Owner GREE ELECTRIC APPLIANCES INC
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