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Air conditioner and dehumidification control method thereof

A control method and technology for an air conditioner, which are applied to the control input involving air characteristics, space heating and ventilation control input, air conditioning system, etc., can solve the problem of reducing the speed of the dehumidification process, affecting the dehumidification effect, and the ambient dew point temperature of the indoor heat exchanger. Not fixed and other problems, to achieve the effect of rapid response and small fluctuation

Active Publication Date: 2019-06-07
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
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Problems solved by technology

[0002] At present, when the air conditioner is running in dehumidification, the ambient dew point temperature of the indoor heat exchanger of the air conditioner is not fixed, especially when the air conditioner is running in dehumidification, the ambient temperature and humidity of the indoor environment are changing. It will change with the process of dehumidification operation, and the evaporation temperature of the indoor heat exchanger will also change with the indoor and outdoor and the operating parameters of the air conditioner. When the evaporation temperature of the indoor heat exchanger is higher than the dew point temperature of the indoor environment, It will greatly reduce the speed of the dehumidification process and affect the dehumidification effect

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  • Air conditioner and dehumidification control method thereof
  • Air conditioner and dehumidification control method thereof
  • Air conditioner and dehumidification control method thereof

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Embodiment Construction

[0023] figure 1 It is a schematic block diagram of an air conditioner 10 according to an embodiment of the present invention. The air conditioner 10 of an embodiment of the present invention includes a compressor 400, a throttle device 300 and an indoor unit 100, and the indoor unit 100 includes an indoor heat exchanger 110, The throttling device 300 of this embodiment is an electronic expansion valve. The air conditioner 10 of an embodiment of the present invention further includes a controller 200, and the controller 200 includes a processor 220 and a memory 210, wherein the memory 210 stores a control program 211 When the control program 211 is executed by the processor 220, it is used to implement the dehumidification control method of the air conditioner 10. The controller 200 can control the opening degree of the electronic expansion valve.

[0024] The refrigerant is compressed into high-temperature and high-pressure refrigerant vapor in the compressor 400. The refrigerant...

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Abstract

The invention provides an air conditioner and a dehumidification control method thereof. The dehumidification control method of the air conditioner comprises the steps that in a dehumidification mode,the environment dew point temperature is calculated according to the environment temperature and the environment humidity, and a first target threshold value temperature range is determined; the first opening degree of an electronic expansion valve is determined according to the coil pipe detection temperature of an indoor heat exchanger of the air conditioner; the second opening degree of the electronic expansion valve is determined according to the exhaust outlet temperature of a compressor of the air conditioner; and the opening degree of the electronic expansion valve is adjusted to be the small one in the first opening degree and the second opening degree. The environment dew point temperature changes along with changes of the environment temperature and the environment humidity, therefore, it is guaranteed that the coil pipe temperature of the indoor heat exchanger is kept within the target threshold value temperature range, the condition that the coil pipe temperature of the indoor heat exchanger is too high is avoided, and then the condition that water steam in indoor air can not be condensed into water is avoided; and meanwhile, influences of the exhaust outlet temperature of the compressor on the opening degree of the electronic expansion valve are avoided, therefore, the dehumidification effect is guaranteed, and the dehumidification speed is increased.

Description

Technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner and a dehumidification control method thereof. Background technique [0002] At present, when the air conditioner is dehumidifying, the ambient dew point temperature of the indoor heat exchanger of the air conditioner is not fixed. Especially when the air conditioner is dehumidifying, the ambient temperature and humidity of the indoor environment are changing. At this time, the ambient dew point temperature It will change with the process of dehumidification operation, and the evaporation temperature of the indoor heat exchanger will also change with the operating parameters of the indoor and outdoor and air conditioners. When the evaporation temperature of the indoor heat exchanger is higher than the indoor environment dew point temperature, It will greatly reduce the speed of the dehumidification process and affect the dehumidification effect. Summary of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0083F24F11/84F24F11/64F24F110/10F24F110/20F24F140/20
Inventor 杨晓曾繁博李宗攀孙龙刘丙磊耿建龙
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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