Oil return control method for air conditioner and air conditioner
A technology of oil return control and air conditioner, which is applied in heating and ventilation control systems, applications, refrigerators, etc., and can solve problems such as poor oil return
Active Publication Date: 2022-03-11
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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Problems solved by technology
[0006] In order to solve the above-mentioned problems in the prior art, that is, to solve the problem of poor oil return in existing air conditioners, the present invention provides an oil return control method for an air conditioner. The oil return control method includes: obtaining The operation mode of the air conditioner; obtain the operation time of the air conditioner; obtain the coil temperature of the indoor unit of the air conditioner; according to the operation mode of the air conditioner, the operation time of the air conditioner and the indoor the coil temperature of the air conditioner, selectively put the air conditioner into the oil return mode
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[0020] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that the implementations described below are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
[0021] The existing air conditioners pointed out based on the background technology have the problem of poor oil return. The invention provides an oil return control method for an air conditioner and the air conditioner, aiming at enabling the air conditioner to realize reliable oil return so as to ensure the normal operation of the air conditioner.
[0022] Specifically, the air conditioner of the present invention includes a controller, such as figure 1 As shown, the oil return control method of the present invention includes: obtaining the operating mode of the air conditioner; obtaining the operating time of the air cond...
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The invention belongs to the technical field of air conditioners and aims to solve the problem of poor oil return in existing air conditioners. Therefore, the present invention provides an oil return control method for an air conditioner and the air conditioner. The oil return control method of the present invention includes: obtaining the operating mode of the air conditioner; obtaining the running time of the air conditioner; obtaining the indoor According to the operating mode of the air conditioner, the running time of the air conditioner and the coil temperature of the indoor unit, the air conditioner can be selectively put into the oil return mode. Through such setting, the present invention can selectively make the air conditioner enter the oil return mode according to the operating mode of the air conditioner, the operating time of the air conditioner and the coil temperature of the indoor unit, so that the refrigerating oil in the compressor can always be guaranteed The compressor runs normally, and the present invention can also make the air conditioner enter different oil return modes according to the operating mode of the air conditioner, the operating time of the air conditioner and the coil temperature of the indoor unit, so as to improve the oil return efficiency.
Description
technical field [0001] The invention belongs to the technical field of air conditioners, and specifically provides an oil return control method for an air conditioner and the air conditioner. Background technique [0002] An air conditioner is a device capable of cooling / heating a room. [0003] The air conditioner includes an indoor unit and an outdoor unit, which are connected through gas pipes and liquid pipes. In order to ensure the reliability of the air conditioner, the generally nominal piping length and drop are relatively small. When the compressor discharges the refrigerant, it also discharges a certain amount of refrigerated oil. When the air conditioner is in cooling operation, the discharged refrigerated oil enters the indoor unit with the refrigerant, and the refrigerant gradually evaporates into a gaseous refrigerant in the indoor unit, while the refrigerated oil does not evaporate. Gasification, the flow rate of the refrigerant decreases, and the refrigeran...
Claims
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IPC IPC(8): F24F11/30F24F11/64F24F11/65F24F11/70F24F11/88F25B31/00F24F140/20
CPCF24F11/30F24F11/64F24F11/65F24F11/70F24F11/88F25B31/004F24F2140/20
Inventor 卢大海焦华
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD