Air conditioner and self-cleaning controlling method for outdoor unit of air conditioner
A control method and self-cleaning technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problem of reducing the heat exchange performance of heat exchangers, the performance of air conditioners, and the heat exchange efficiency of outdoor units. and other problems, to achieve the optimization of self-cleaning process, less time consumption, and good self-cleaning effect.
Active Publication Date: 2017-12-29
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Problems solved by technology
These dust and dirt adhere to the heat exchanger of the outdoor unit, on the one hand, it will reduce the heat transfer performance of the heat exchanger, resulting in a decrease in the performance of the air conditioner and an increase in energy consumption.
[0003] The solution adopted by traditional air conditioners generally seldom maintains the outdoor unit, and generally relies on its condensed water or environmental wind and rain for cleaning. This method is difficult to ensure the cleaning effect of the outdoor unit, and long-term operation will greatly reduce the heat exchange efficiency of the outdoor unit.
Method used
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[0027] figure 1 is a schematic functional block diagram of the air conditioner 10 according to one embodiment of the present invention. figure 2 is a schematic diagram of the refrigeration system of the air conditioner 10 according to one embodiment of the present invention.
[0028] The air conditioner 10 can generally include an air conditioner indoor unit 100 and an air conditioner outdoor unit 200. The air conditioner indoor unit 100 and the air conditioner outdoor unit 200 can complete the refrigeration and heating cycles of the air conditioner through effective cooperative operation, thereby realizing Heating and cooling regulation of internal temperature. The refrigerating system of the air conditioner 10 can be realized by using a compression refrigerating cycle, which utilizes the compression phase change cycle of the refrigerant in the compressor 250 , condenser, evaporator, and throttling device 240 to transfer heat. The refrigeration system can also be equipped ...
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The invention provides an air conditioner and a self-cleaning controlling method for an outdoor unit of the air conditioner. An outdoor unit heat exchanging assembly comprises a first outdoor heat exchanger and a second outdoor heat exchanger which are connected in series, wherein the first outdoor heat exchanger is connected to a compressor through a refrigerant flow direction switching device, and an electronic expansion valve is arranged between the first outdoor heat exchanger and the second outdoor heat exchanger. The self-cleaning controlling method comprises the steps that the refrigerant flow direction switching device is adjusted to the state of providing an indoor unit heat exchanging assembly with a compressed refrigerant; opening of the electronic expansion valve is adjusted, so that frosting is continued on the surface of the first outdoor heat exchanger; after the preset first defrosting condition is met, the refrigerant flow direction switching device is switched, so that the flow direction of the refrigerant is reversed, attached pollutant is removed by utilizing water formed by defrosting, and self-cleaning of the first outdoor heat exchanger is realized; and after the preset second defrosting condition is met, opening of the electronic expansion valve is turned to the maximum, so that the second outdoor heat exchanger releases heat, and self-cleaning of the second outdoor heat exchanger is realized.
Description
technical field [0001] The invention relates to a household air conditioner, in particular to an air conditioner and a self-cleaning control method for an outdoor unit thereof. Background technique [0002] After the air conditioner is placed or used for a long time, a large amount of dust will accumulate outdoors. These dust and dirt adhere to the heat exchanger of the outdoor unit. On the one hand, it will reduce the heat transfer performance of the heat exchanger, resulting in a decrease in the performance of the air conditioner and an increase in energy consumption. [0003] The solution adopted by traditional air conditioners generally seldom maintains the outdoor unit, and generally relies on its condensed water or environmental wind and rain for cleaning. This method is difficult to ensure the cleaning effect of the outdoor unit, and long-term operation will greatly reduce the heat exchange efficiency of the outdoor unit. Contents of the invention [0004] An objec...
Claims
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IPC IPC(8): F24F11/00
CPCF24F11/00
Inventor 刘超超杨中锋袁俊军
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD