Control method of air conditioning unit and related equipment

A technology of an air-conditioning unit and a control method, applied in the control field, can solve the problems of running frequency out-of-step, affecting the operation of the air-conditioning unit, etc., and achieve the effect of avoiding out-of-step and improving the control effect.

Active Publication Date: 2018-10-30
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If before entering the oil return control mode or defrost control mode, the operating state of the air conditioning unit is single compressor operation, when exiting the oil return control mode or defrost control mode, each compressor may be out of step due to low operating frequency Phenomenon that affects the operation of the air conditioning unit

Method used

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  • Control method of air conditioning unit and related equipment
  • Control method of air conditioning unit and related equipment
  • Control method of air conditioning unit and related equipment

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Embodiment Construction

[0049] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of methods and associated apparatus consistent with aspects of the present application as recited in the appended claims.

[0050] figure 1 It is a flow chart of an air conditioning unit control method provided by an embodiment of the present application. In this embodiment, the air conditioning unit includes at least two compressors, see figure 1, the control method of this embodiment includes:

[0051] Step 11: Detect the control command for the air conditioner to exit the oil return control mod...

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Abstract

The invention relates to a control method of an air conditioning unit and related equipment. The control method comprises the following steps that a control instruction of an air conditioning unit exiting an oil return control mode or the control instruction of defrosting control mode is detected; if the control instruction is detected, operation states of compressors before the air conditioning unit enters the oil return control mode or the defrosting control mode is obtained, and the operation states of the compressors are single-compressor operation or at least two compressors are operated;and if the operation state of the compressor is the single-compressor operation, each compressor of the air conditioning unit is controlled to operate according to a first target frequency, the firsttarget frequency is larger than or equal to the lowest frequency when all the compressors normally run. Therefore, the frequency requirements of all compressors can be met, the problem that the compressors are out of step due to the fact that the operation frequency is low is avoided, so that the control effect of the air conditioning unit can be improved.

Description

technical field [0001] The present application relates to the technical field of control, and in particular to a control method of an air-conditioning unit and related equipment. Background technique [0002] For an air-conditioning unit including at least two compressors, the operation of at least two compressors can be controlled, and when the cooling or heating load of the air-conditioning unit is low, the operating state can be switched to single-compressor operation. [0003] In the related technology, during the operation of the air conditioning unit, if the air conditioning unit reaches the conditions of the oil return control mode or the defrosting control mode, it normally enters the oil return control mode or the defrosting control mode, and when the air conditioning unit exits the oil return control mode or the defrosting control mode In frost control mode, the average frequency of each compressor before entering oil return control mode or defrost control mode is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/65F24F11/88
CPCF24F11/64F24F11/65F24F11/88
Inventor 李彬王琦李毛古王亚楠邓宇云简卓豪
Owner GREE ELECTRIC APPLIANCES INC
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