An air conditioner and its compressor oil return control method, device and storage medium

An oil return control and compressor technology, applied in the field of control, can solve the problems of untimely oil return, affecting the reliability of compressor operation, poor oil return effect, etc., to ensure reliability, ensure long-term reliable operation, and improve service life Effect

Active Publication Date: 2022-07-22
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide an air conditioner and its compressor oil return control method, device and storage medium to solve the problem of sudden refrigerant flow in the system during low temperature operation in the prior art. Increase, the internal unit evaporator is very easy to frost, but the oil return is not timely or the oil return effect is poor, which will affect the reliability of the compressor operation

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  • An air conditioner and its compressor oil return control method, device and storage medium
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  • An air conditioner and its compressor oil return control method, device and storage medium

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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that...

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Abstract

The present invention provides an air conditioner and its compressor oil return control method, device and storage medium. The method includes: when the air conditioner is in refrigeration operation, when a preset oil return condition is satisfied, detecting whether the outdoor ambient temperature is is less than the first preset temperature; if it is detected that the outdoor ambient temperature is less than the first preset temperature, the oil return control is performed according to whether the evaporator tube temperature of the air conditioner is greater than the second preset temperature, wherein, if the temperature is detected When the evaporator tube temperature is greater than the second preset temperature, the oil return control is performed according to the preset first oil return control mode; if it is detected that the evaporator tube temperature is less than or equal to the second preset temperature , the oil return control is performed according to the preset second oil return control mode. The solution provided by the invention can take into account the oil return of the unit and normal refrigeration under the condition of low temperature refrigeration.

Description

technical field [0001] The invention relates to the field of control, in particular to an air conditioner and a method, device and storage medium for controlling oil return of a compressor thereof. Background technique [0002] With the progress of modern life, people's pursuit of quality of life and comfort continues to improve, and the operating environment of air conditioners has also become complicated. For example, some bakeries, the interior spaces of large buildings, and small laboratories need to run refrigeration in winter. . Generally speaking, refrigeration in winter requires less refrigeration than in summer, the operating frequency is low, and the flow of refrigerant in the system is small, which is not conducive to long-term operation. At this time, regular oil return control is required, but oil return control is performed during low temperature operation, and the system refrigerant flow Sudden increase, the evaporator of the internal unit is very easy to fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/49F24F11/64F24F11/61F24F11/65F24F11/70F24F110/12
CPCF24F11/49F24F11/64F24F11/61F24F11/65F24F11/70F24F2110/12
Inventor 潘卫琼闫志斌鲍勇邓伟良杨秋石杜煜昊
Owner GREE ELECTRIC APPLIANCES INC
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