Air conditioner control method, device and air conditioner
A control method and air-conditioning technology, which is applied in the field of equipment, air-conditioning, and air-conditioning control methods, and can solve the problems of limiting the compression efficiency of compressors, the heat exchange between the outdoor unit heat exchanger and the outdoor environment, and the inability to meet the requirements of air supplementation and enthalpy increase. , to achieve the effect of improving work performance
Active Publication Date: 2019-10-01
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Problems solved by technology
[0002] For fixed-frequency or variable-frequency air conditioners currently on the market, when the air conditioner is operating in the severe cold winter, due to the low temperature of the external environment, the heat exchange between the outdoor unit heat exchanger and the outdoor environment is too small, resulting in a reduction in the heat generated by the indoor mechanism, which cannot meet the requirements. The demand for heating, so it is generally necessary to supplement the air to increase the enthalpy of the compressor to reduce the exhaust temperature of the compressor and improve the heating capacity of the air conditioner
[0003] The conventional pipeline for supplementing air to increase enthalpy is to install a refrigerant branch pipeline connected to the air supply port of the compressor at the outlet of the heat exchanger of the indoor unit, and during the process of supplementing air to increase the enthalpy of the compressor, most of the refrigerant added is medium Therefore, the state of the refrigerant introduced directly from the heat exchanger of the indoor unit often cannot meet the requirements of replenishing gas and increasing enthalpy, which limits the compression efficiency of the compressor
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[0030] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. Herein, various embodiments may be referred to individually or collectively by the term "invention", which is for convenience only and is not intended to automatically limit the scope of this application if in fact more than one invention is disclosed. A single invention or inventive concept. Herein, relational terms such...
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The invention discloses an air conditioner control method, device and air conditioner, belonging to the technical field of air conditioners. The control method includes: obtaining the outdoor temperature threshold value and the air supply temperature condition; detecting the outdoor temperature, outdoor unit temperature and radiator temperature when the air conditioner is running in heating mode; when the outdoor temperature is not greater than the outdoor temperature threshold value, and the outdoor unit temperature is not greater than the frost condensation When the critical temperature is reached, adjust the opening degree of the first throttling device so that the temperature of the radiator meets the air supply temperature condition. The control method of the present invention can control and open the first throttling device when the outdoor temperature is lower than the critical temperature of frost condensation, so that the refrigerant flowing out of the heat exchanger of the indoor unit can exchange heat with the electric control element through the radiator, thereby utilizing The waste heat generated by the electronic control components increases the heat load of the added refrigerant, so that the refrigerant after heat exchange can reach the state of the refrigerant required by the compressor to replenish air and increase enthalpy, thereby improving the working performance of the compressor.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, device and air conditioner. Background technique [0002] For fixed-frequency or variable-frequency air conditioners currently on the market, when the air conditioner is operating in severe cold in winter, due to the low temperature of the external environment, the heat exchange between the outdoor unit heat exchanger and the outdoor environment is too small, which reduces the heat generated by the indoor mechanism and cannot meet the requirements. Therefore, it is generally necessary to supplement the air to increase the enthalpy of the compressor to reduce the exhaust temperature of the compressor and improve the heating capacity of the air conditioner. [0003] The conventional pipeline for supplementing air to increase enthalpy is to install a refrigerant branch pipeline connected to the air supply port of the compressor at the outl...
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IPC IPC(8): F24F11/64F24F11/88F24F11/42F25B49/02F25B41/06F24F110/10F24F110/12F25B41/31
CPCF24F11/30F24F11/62F25B49/022F24F11/42F24F11/65F25B41/31Y02B30/70
Inventor 罗荣邦
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD