WO2022127108A1 - Climatiseur et procédé de régulation de température et d'humidité pour celui-ci, et support de stockage lisible par ordinateur - Google Patents

Climatiseur et procédé de régulation de température et d'humidité pour celui-ci, et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2022127108A1
WO2022127108A1 PCT/CN2021/107308 CN2021107308W WO2022127108A1 WO 2022127108 A1 WO2022127108 A1 WO 2022127108A1 CN 2021107308 W CN2021107308 W CN 2021107308W WO 2022127108 A1 WO2022127108 A1 WO 2022127108A1
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WO
WIPO (PCT)
Prior art keywords
dehumidification
air conditioner
temperature
frequency
air
Prior art date
Application number
PCT/CN2021/107308
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English (en)
Chinese (zh)
Inventor
席战利
蔡志昇
毕然
李玉
肖其登
高卓贤
Original Assignee
广东美的制冷设备有限公司
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Publication of WO2022127108A1 publication Critical patent/WO2022127108A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of air conditioners, and in particular, to a temperature and humidity control method, an air conditioner, and a computer-readable storage medium.
  • air conditioners With the development of science and technology and the improvement of people's living standards, air conditioners have been widely used, and people have higher and higher requirements for the use of air conditioners, and the performance of air conditioners has been continuously optimized.
  • current air conditioners generally have a dehumidification function.
  • the air conditioner generally dehumidifies the indoor environment through cooling operation.
  • the indoor heat exchanger is in the evaporating state to absorb heat, which will reduce the indoor ambient temperature.
  • the indoor heat exchanger is in the evaporating state to absorb heat, which will reduce the indoor ambient temperature.
  • the main purpose of the present application is to provide a temperature and humidity control method, which aims to realize that the air conditioner dehumidifies the indoor environment without reducing the indoor temperature, and improves the comfort of indoor users during the dehumidification process.
  • the present application provides a temperature and humidity control method, which is applied to an air conditioner, and the temperature and humidity control method comprises the following steps:
  • Control the heating module to heat the air in the air duct of the air conditioner, and control the dehumidification operation of the air conditioner according to the set dehumidification parameters. threshold;
  • the dehumidification operating parameters include a dehumidification frequency, a dehumidification rotational speed and/or a dehumidification opening, and the dehumidification operating parameters of the air conditioner are adjusted so that the outlet air temperature is greater than or equal to the inlet air temperature.
  • the temperature steps include:
  • control the compressor of the air conditioner When the outlet air temperature is lower than the inlet air temperature, control the compressor of the air conditioner to reduce the dehumidification frequency, control the fan of the air conditioner to reduce the dehumidification speed, and/or control the electronic expansion valve of the air conditioner Increase the dehumidification opening.
  • control of the compressor of the air conditioner to reduce the dehumidification frequency, the control of the fan of the air conditioner to reduce the dehumidification speed, and/or the control of the electronic expansion valve of the air conditioner to increase the dehumidification opening degree. Steps include:
  • the time interval is set, and the fan of the air conditioner is controlled to reduce the dehumidification speed, and/or the electronic expansion valve of the air conditioner is controlled to increase the dehumidification opening.
  • the target component is defined to include the fan and/or the electronic expansion valve
  • the adjustment parameter of the dehumidification operation corresponding to the target component is defined as the first target adjustment parameter
  • the fan that controls the air conditioner is defined as the first target adjustment parameter.
  • the target component is controlled to adjust operating parameters according to the first target adjustment parameters.
  • the first target adjustment parameter includes an adjustment rate and an adjustment range of the operating parameter corresponding to the target component, and the first target adjustment parameter is determined according to the frequency change parameter and the operating power.
  • the steps include:
  • the adjustment range is determined according to the frequency change parameter, and the adjustment rate is determined according to the operating power
  • the adjustment range has an increasing trend with the increase of the frequency change parameter, and the adjustment rate has a decreasing trend with the increase of the operating power.
  • the step of controlling the compressor of the air conditioner to reduce the dehumidification frequency includes:
  • the method for obtaining the target frequency adjustment parameter includes: obtaining a preset frequency adjustment parameter as the target frequency adjustment parameter, and determining the target frequency adjustment parameter according to the temperature deviation between the outlet air temperature and the inlet air temperature, Or, the target frequency adjustment parameter is determined according to a preset frequency coefficient and the current operating frequency of the compressor.
  • the step of controlling the compressor of the air conditioner to reduce the dehumidification frequency it further includes:
  • the fan of the air conditioner In response to the current dehumidification frequency of the compressor being less than or equal to the set minimum frequency, the fan of the air conditioner is controlled to reduce the dehumidification speed, and/or the electronic expansion valve of the air conditioner is controlled to increase the dehumidification opening.
  • the target component is defined to include the fan and/or the electronic expansion valve
  • the adjustment parameter of the dehumidification operation corresponding to the target component is defined as the second target adjustment parameter
  • the control of the fan of the air conditioner reduces the dehumidification.
  • the step of controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening degree includes:
  • the method for obtaining the second target adjustment parameter includes: obtaining a preset adjustment parameter corresponding to the target component as the second target adjustment parameter, and according to the temperature between the outlet air temperature and the inlet air temperature The deviation determines the second target adjustment parameter, or the second target adjustment parameter is determined according to the preset frequency coefficient corresponding to the target component and the current operating frequency of the target component.
  • the setting of the dehumidification parameters includes setting the dehumidification frequency, the dehumidification rotational speed and/or the setting of the dehumidification opening
  • the step of controlling the dehumidification operation of the air conditioner according to the set dehumidification parameters includes:
  • the set dehumidification frequency is less than or equal to the set frequency threshold
  • the set dehumidification speed is less than or equal to the set speed threshold
  • the set dehumidification opening is greater than or equal to the set opening threshold
  • the step of controlling the dehumidification operation of the air conditioner according to the set dehumidification parameters it further includes:
  • the setting of dehumidification parameters includes setting a dehumidification frequency, and the setting dehumidification frequency tends to decrease as the operating power decreases;
  • the setting dehumidification parameters includes setting a dehumidification speed, and the setting dehumidification speed and/or,
  • the set dehumidification parameter includes the dehumidification opening degree, and the set dehumidification opening degree has an increasing trend as the operation power decreases.
  • the step of controlling the dehumidification operation of the air conditioner according to the set dehumidification parameters it further includes:
  • the air conditioner is controlled to avoid the target position to supply air.
  • the present application also proposes an air conditioner, the air conditioner comprising:
  • the heating module is used to heat the air in the outlet air duct
  • control device is connected to the heating module, and the control device includes: a memory, a processor, and a temperature and humidity regulation program stored on the memory and running on the processor, the temperature and humidity When the regulation program is executed by the processor, the steps of the temperature and humidity regulation method described in any one of the above are realized.
  • the present application also proposes a computer-readable storage medium on which a temperature and humidity control program is stored, and when the temperature and humidity control program is executed by a processor, any one of the above is realized.
  • the steps of the temperature and humidity control method are described in detail below.
  • the present application proposes a temperature and humidity control method applied to an air conditioner.
  • the method controls the heating module to heat the air in the air outlet duct and controls the operation of the air conditioner according to the set dehumidification parameters to limit the cooling of the indoor environment by the output cooling capacity of the air conditioner.
  • the dehumidification operation parameters of the air conditioner are adjusted so that the air outlet temperature of the air conditioner can be greater than or equal to the inlet air temperature, so as to ensure that the air conditioner dehumidifies at the same time.
  • the air outlet will not reduce the indoor ambient temperature, and effectively improve the comfort of indoor users during the dehumidification process.
  • FIG. 1 is a schematic diagram of the hardware structure involved in the operation of an embodiment of an air conditioner of the present application
  • FIG. 2 is a schematic flowchart of an embodiment of a temperature and humidity control method of the present application
  • FIG. 3 is a schematic flowchart of another embodiment of the temperature and humidity control method of the present application.
  • FIG. 4 is a schematic flowchart of another embodiment of the temperature and humidity control method of the present application.
  • the main solution of the embodiment of the present application is to control the heating module to heat the air in the air outlet duct of the air conditioner, and control the dehumidification operation of the air conditioner according to the set dehumidification parameters, wherein the air conditioner uses the set dehumidification parameters During operation, the decreasing range of the indoor ambient temperature is less than or equal to the set threshold; adjust the dehumidification operation parameters of the air conditioner so that the air outlet temperature of the air conditioner is greater than or equal to the air inlet temperature of the air conditioner.
  • the air conditioner generally dehumidifies the indoor environment through cooling operation.
  • the indoor heat exchanger is in an evaporating state to absorb heat, which will reduce the indoor ambient temperature, and the user has no cooling demand or cooling demand for the air conditioner.
  • the indoor ambient temperature is too low, which will seriously affect the user's comfortable experience.
  • the present application provides the above solution, which aims to achieve that the air conditioner dehumidifies the indoor environment without reducing the indoor temperature, and improves the comfort of indoor users during the dehumidification process.
  • the embodiment of the present application proposes an air conditioner.
  • the air conditioner can be any air conditioning device with a heat pump system, such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, and a multi-line air conditioner.
  • the air conditioner includes a casing, a refrigerant circulation loop, a fan, a heating module, etc.
  • the refrigerant circulation loop includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger connected in sequence.
  • the second heat exchanger may specifically be an indoor heat exchanger
  • the first heat exchanger may specifically be an outdoor heat exchanger.
  • the fans include indoor fans and outdoor fans. The indoor fans correspond to the indoor heat exchanger settings, and the outdoor fans correspond to the outdoor heat exchanger settings.
  • the throttling device specifically refers to an electronic expansion valve.
  • the throttling device may also be other throttling components whose throttling effect cannot be adjusted, such as a capillary tube and the like.
  • the heating module is specifically an electric auxiliary heating module.
  • the heating module can also be configured as other types of functional modules with heating functions, such as modules heated by radiation, according to actual requirements.
  • an air duct may be provided in the housing, a return air outlet and an air outlet may be arranged on the housing, and the air duct communicates with the return air outlet and the air outlet of the air outlet, and a part of the air duct close to the air outlet may be defined as an air outlet air duct.
  • the indoor heat exchanger, the indoor unit and the heating module are all arranged in the air outlet duct. Specifically, the heating module is located between the indoor heat exchanger and the air outlet.
  • the air in the indoor environment enters the air duct from the return air outlet, and then flows through the indoor heat exchanger for heat exchange (such as cooling and dehumidification) after entering the air outlet air duct.
  • the air after heat exchange by the indoor heat exchanger can be heated by the heating module and sent to the indoor environment from the air outlet.
  • the air conditioner may also be provided with a detection module.
  • the detection module may include a temperature sensor and/or a humidity sensor.
  • the temperature sensor can be set at the air return and/or air outlet of the air conditioner according to actual needs, and is used to detect the air outlet temperature and the air inlet temperature of the air conditioner (it can also be regarded as the indoor ambient temperature).
  • the humidity sensor can also be installed at the air return and/or air outlet of the air conditioner according to actual needs, to detect the air inlet humidity (which can also be considered as indoor ambient humidity) and the air outlet humidity of the air conditioner.
  • the embodiment of the present application proposes a control device, which can be applied to temperature and humidity control of the above-mentioned air conditioner.
  • the control device may be built into the above-mentioned air conditioner, or may be provided independently of the above-mentioned air conditioner according to actual needs.
  • the control apparatus includes: a processor 1001 (eg, a CPU), a memory 1002 , and the like.
  • the memory 1002 may be high-speed RAM memory, or may be non-volatile memory, such as disk memory.
  • the memory 1002 may also be a storage device independent of the aforementioned processor 1001 .
  • the processor 1001 is connected to the memory 1002 .
  • the processor 1001 can also be connected to the above-mentioned compressor 1 , fan 2 , detection module 3 , heating module 4 , and electronic expansion valve 5 .
  • the processor 1001 can control the operation of the compressor 1 , the indoor fan 2 , the heating module 4 and the electronic expansion valve 5 , and can also acquire temperature data collected by the detection module 3 .
  • FIG. 1 does not constitute a limitation to the device, and may include more or less components than the one shown, or combine some components, or arrange different components.
  • the memory 1002 as a computer-readable storage medium may include an air conditioner temperature and humidity control program.
  • the processor 1001 can be used to call the air conditioner temperature and humidity control program stored in the memory 1002, and execute the relevant steps of the air conditioner temperature and humidity control method in the following embodiments.
  • the embodiments of the present application further provide a temperature and humidity control method, which is applied to the above-mentioned air conditioner.
  • the temperature and humidity control method includes:
  • Step S10 controlling the heating module to heat the air in the air outlet duct of the air conditioner, and controlling the dehumidification operation of the air conditioner according to the set dehumidification parameters, wherein the indoor ambient temperature drops when the air conditioner operates with the set dehumidification parameters
  • the amplitude is less than or equal to the set threshold
  • step S10 is performed in a settable dehumidification mode.
  • the setting of the dehumidification mode specifically refers to an operation mode of the air conditioner that reduces the humidity of the indoor environment without lowering the temperature of the indoor environment.
  • the indoor heat exchanger is in an evaporating state, and the humidity of the air after passing through the indoor heat exchanger is lower than that of the air before passing through the indoor heat exchanger, so as to achieve dehumidification.
  • the setting dehumidification mode can be entered when the control command input by the user is received; in addition, the temperature and humidity of the current indoor environment can also be monitored by the air conditioner, and the air conditioner can be controlled to enter the setting mode when the monitored data meets the preset conditions.
  • Set the dehumidification mode for example, when the indoor ambient temperature is lower than the set ambient temperature and the indoor ambient humidity is greater than or equal to the set humidity, the air conditioner is controlled to enter the set dehumidification mode.
  • the heating module is specifically an electric auxiliary heating module, which may be an electric auxiliary heating module with adjustable heating power, or an electric auxiliary heating module with non-adjustable heating power.
  • the heating module heats the air in the outlet air duct, the heating module can operate with a variable heating power or with a fixed heating power.
  • the specific setting of the dehumidification parameters is preset so that the drop rate of the indoor ambient temperature is less than or equal to the set threshold.
  • the air in the indoor environment enters the air conditioner and exchanges heat with the indoor heat exchanger and then dehumidifies the humidity.
  • the temperature before the heat exchange between the air and the indoor heat exchanger is defined as the first temperature.
  • the latter temperature is the second temperature, and the decreasing range of the indoor ambient temperature here refers to the temperature deviation between the first temperature and the second temperature.
  • the set dehumidification parameters can include the operation parameters of the components related to the output cooling capacity during the dehumidification process of the air conditioner, and can include one or more than one, which can be selected according to the actual situation. It is only necessary to ensure that the air conditioner operates according to the set dehumidification parameters.
  • the cooling capacity of the output can be less than or equal to the set threshold.
  • the size of the set threshold here can be specifically determined according to the actual situation.
  • the heat emitted when the heating module is turned on can compensate for the heat absorbed by the air conditioner during cooling and dehumidification, so as to ensure that the outlet air temperature of the air conditioner will not be too low.
  • Step S20 adjusting the dehumidification operation parameters of the air conditioner so that the air outlet temperature of the air conditioner is greater than or equal to the air inlet temperature of the air conditioner.
  • the inlet air temperature represents the temperature of the air entering the air conditioner without temperature and humidity regulation from the indoor environment;
  • the outlet air temperature represents the temperature of the air entering the air conditioner after being regulated by temperature and humidity and sent to the indoor environment.
  • the outlet air temperature can be obtained by acquiring data detected by a temperature sensor provided at the air outlet of the air conditioner.
  • the inlet air temperature can be obtained by acquiring data detected by a temperature sensor disposed at the air return port of the air conditioner.
  • the dehumidification operation parameters specifically refer to the operation parameters of the components related to the outlet air temperature during the current dehumidification operation of the air conditioner.
  • the adjustment parameters may specifically include the adjustment direction (such as increasing, decreasing or maintaining the same), adjustment range, adjustment ratio, adjustment rate, etc. of the dehumidification operation parameters.
  • the corresponding relationship between the outlet air temperature, the inlet air temperature and the adjustment parameters of the dehumidification operation parameters may be preset, and may be a quantitative relationship, a mapping relationship, or the like. Based on the corresponding relationship, the adjustment parameters of the dehumidification operation parameters corresponding to the current outlet air temperature and the inlet air temperature can be determined, and the dehumidification operation parameters of the air conditioner can be adjusted based on the determined adjustment parameters.
  • the target interval is a temperature set greater than or equal to the inlet air temperature.
  • the outlet air temperature and the inlet air temperature can be based on the quantitative relationship between the outlet air temperature and the inlet air temperature (such as temperature deviation, temperature ratio, etc.), based on the magnitude relationship between the outlet air temperature and the inlet air temperature (for example, the outlet air temperature is greater than or equal to the inlet air temperature) temperature and outlet air temperature are lower than inlet air temperature) to determine the corresponding adjustment parameters to adjust the dehumidification operation parameters of the air conditioner.
  • Different temperature deviations correspond to different adjustment ranges or adjustment ratios, and different magnitude relationships can correspond to different adjustment directions. For example, when the outlet air temperature is greater than or equal to the inlet air temperature, the dehumidification operation parameters can be maintained unchanged; when the outlet air temperature is lower than the inlet air temperature, the dehumidification operation parameters can be reduced.
  • the dehumidification operation parameters include a dehumidification frequency, a dehumidification rotational speed, and/or a dehumidification opening. That is, at least one of the dehumidification frequency, the dehumidification rotation speed, and the dehumidification opening degree may be adjusted based on the outlet air temperature and the inlet air temperature.
  • the dehumidification frequency specifically refers to the operating frequency of the compressor during the current dehumidification process
  • the dehumidification speed specifically refers to the operating speed of the fan during the current dehumidification process
  • the dehumidification opening specifically refers to the opening of the electronic expansion valve during the current dehumidification process.
  • step S30 may specifically include acquiring the outlet air temperature and inlet air temperature of the air conditioner, and when the outlet air temperature is lower than the inlet air temperature, at least one or a combination of more than one of the following methods is adopted:
  • Mode 1 when the temperature of the outlet air is lower than the temperature of the inlet air, controlling the compressor of the air conditioner to reduce the frequency of dehumidification;
  • the fan of the air conditioner when the temperature of the outlet air is lower than the temperature of the inlet air, the fan of the air conditioner is controlled to reduce the dehumidification speed;
  • the fan may include an indoor fan and/or an outdoor fan;
  • the electronic expansion valve of the air conditioner is controlled to increase the dehumidification opening degree.
  • Manner 4 When the outlet air temperature is greater than or equal to the inlet air temperature, control the compressor, electronic expansion valve and/or fan of the air conditioner to maintain current operating parameters.
  • any one of the reduction of the dehumidification frequency of the compressor, the reduction of the dehumidification speed of the fan, and the increase of the dehumidification opening of the electronic expansion valve can further reduce the cooling capacity output by the air conditioner, thereby reducing the decline of the indoor ambient temperature.
  • the further reduction of the output cooling capacity of the air conditioner can further increase the outlet air temperature of the air conditioner on the current basis.
  • a temperature and humidity control method proposed in the embodiment of the present application controls the heating module to heat the air in the air outlet duct and controls the operation of the air conditioner according to the set dehumidification parameters to limit the cooling effect of the output cooling capacity of the air conditioner on the indoor environment, thereby
  • the outlet air temperature will not be too low.
  • adjust the dehumidification operation parameters of the air conditioner so that the outlet air temperature of the air conditioner can be greater than or equal to the inlet air temperature, so as to ensure that the air conditioner dehumidifies while the air outlet. It will not reduce the indoor ambient temperature, and effectively improve the comfort of indoor users during the dehumidification process.
  • setting the dehumidification parameters includes setting the dehumidification frequency, setting the dehumidification rotational speed, and/or setting the dehumidification opening.
  • the pre-set dehumidification frequency refers to the pre-set compressor operating frequency that limits the cooling capacity output by the air conditioner to be less than or equal to the set threshold;
  • the fan running speed with a certain threshold can refer to the speed of the indoor fan and/or the outdoor fan;
  • the set dehumidification opening refers to the preset limit of the cooling capacity of the air conditioner output being less than or equal to the set threshold of the electronic expansion valve. opening.
  • the cooling capacity output by the air conditioner is limited to be less than or equal to the set threshold.
  • the fan may specifically include an indoor fan and/or an outdoor fan of the air conditioner.
  • the set dehumidification frequency is less than or equal to the set frequency threshold, the set dehumidification speed is less than or equal to the set speed threshold, and the set dehumidification opening is greater than or equal to the set opening threshold.
  • the compressor can run at a fixed frequency or variable frequency with a dehumidification frequency less than or equal to the set frequency threshold; the fan can run at a fixed speed or a variable speed with a dehumidification speed less than or equal to the set speed threshold; the electronic expansion valve can be less than or equal to the set speed.
  • the dehumidification opening of the opening threshold is operated in a fixed opening or a variable opening.
  • the compressor operates at a low frequency, which can reduce the output capacity of the compressor and reduce the heat exchange capacity of the refrigerant system, thereby reducing the output cooling capacity of the air conditioner and realizing the improvement of indoor environment.
  • the limit of the temperature drop; the set dehumidification speed is less than or equal to the set speed threshold, the fan runs at low speed, and when the indoor fan runs at low speed, the cooling capacity carried by cooling and dehumidification can be sent into the indoor air to reduce, and the outdoor fan
  • the condensing temperature of the outdoor heat exchanger can be raised, thereby increasing the evaporating temperature of the indoor heat exchanger, which can reduce the cooling capacity carried by the indoor air after cooling and dehumidification, and realize the output cooling capacity of the air conditioner.
  • the cooling capacity carried by the indoor air after cooling and dehumidification reduces the output cooling capacity of the air conditioner and limits the range of the indoor ambient temperature drop.
  • the set dehumidification frequency can be selected from a frequency set less than or equal to the set frequency threshold, which can be a preset fixed parameter or a parameter selected from the frequency set based on the actual operation of the air conditioner.
  • the set dehumidification speed can be selected from a speed set less than or equal to the set speed threshold, which can be a preset fixed parameter, or a parameter selected from the speed set based on the actual operation of the air conditioner.
  • the set dehumidification opening degree can be selected from an opening degree set greater than or equal to the set opening degree threshold, which can be a preset fixed parameter, or a parameter selected from the opening degree set based on the actual operation of the air conditioner.
  • the step before the step of controlling the dehumidification operation of the air conditioner according to the set dehumidification parameters, the step further includes: obtaining the operating power of the heating module; obtaining the set dehumidification parameters according to the operating power; Setting dehumidification parameters includes setting a dehumidification frequency, and the set dehumidification frequency tends to decrease as the operating power decreases; the setting dehumidification parameters includes setting a dehumidification speed, and the set dehumidification speed varies with the operating power and/or, the set dehumidification parameter includes the dehumidification opening degree, and the set dehumidification opening degree has an increasing trend as the operating power decreases.
  • different operating powers correspond to different set dehumidification parameters, so that when the operating power of the heating module is higher and the heating efficiency is higher, the output cooling capacity of the air conditioner corresponding to the set dehumidification parameters can be appropriately increased.
  • the increase of the amount is conducive to improving the dehumidification effect of the air conditioner, so as to ensure that the heat emitted by the heating module can offset the cooling output of the air conditioner to ensure that the outlet air temperature will not be too low, so that the indoor temperature and humidity can meet the user's comfort. sexual needs.
  • the target position of the human body in the indoor environment can be obtained;
  • the air conditioner avoids the target position to supply air.
  • the target position here can be input by the user, and can also be automatically detected based on the human body positioning module (eg, infrared detection module, radar, image acquisition module, etc.) set in the air conditioner.
  • the human body positioning module eg, infrared detection module, radar, image acquisition module, etc.
  • the direction other than the direction of the target position can be determined as the air outlet direction of the air conditioner, and the air guide components of the air outlet of the air conditioner are controlled to operate according to the determined air outlet direction, so that the air outlet of the air conditioner can be operated.
  • the direction avoids the location of the user, so as to prevent the low-temperature air from blowing to the user during the dehumidification process, which can further improve the user's comfort during the dehumidification process.
  • the air conditioner can be controlled to avoid the target position to supply air, and then the heating module can be further controlled to turn on and the air conditioner can be operated according to the set dehumidification parameters.
  • the operating power of the heating module and/or the set dehumidification parameters can be based on the output of the air conditioner.
  • the deviation angle of the wind direction relative to the direction of the target position is determined. The larger the deviation angle is, the smaller the operating power can be, and vice versa; The larger the deviation angle is, the smaller the dehumidification opening can be set, and vice versa.
  • multiple components of the air conditioner can cooperate with each other to reduce the indoor ambient humidity while the temperature of the user's location does not decrease, so as to ensure the user's comfort. sex.
  • the step S20 includes:
  • Step S20a obtaining the air outlet temperature and the air inlet temperature of the air conditioner
  • Step S21 when the outlet air temperature is lower than the inlet air temperature, control the compressor of the air conditioner to reduce the dehumidification frequency
  • the adjustment of the compressor frequency may be performed according to preset adjustment parameters, or may be performed based on actually determined adjustment parameters.
  • the adjustment parameters here may specifically include an adjustment range, an adjustment ratio, an adjustment rate, and/or an adjusted target frequency value of the compressor, and the like.
  • the step of controlling the compressor of the air conditioner to reduce the dehumidification frequency includes: obtaining a target frequency adjustment parameter; controlling the compressor to reduce the dehumidification frequency according to the target frequency adjustment parameter; wherein, the method of obtaining the target frequency adjustment parameter includes one of the following ways:
  • Method 1 Obtain a preset frequency adjustment parameter as the target frequency adjustment parameter; specifically, a preset frequency adjustment rate or frequency adjustment range may be used as the target frequency adjustment parameter. For example, reduce 5Hz from the existing frequency.
  • Mode 2 Determine the target frequency adjustment parameter according to the temperature deviation between the outlet air temperature and the inlet air temperature; specifically, the target frequency adjustment parameter increases with the increase of the temperature deviation. For example, the larger the temperature deviation, the lower the frequency. the greater the magnitude.
  • Mode 3 Determine the target frequency adjustment parameter according to the preset frequency coefficient and the current operating frequency of the compressor.
  • Step S22 controlling the fan of the air conditioner to reduce the dehumidification speed at intervals of a set time period, and/or controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening.
  • the set duration here is specifically a preset fixed parameter, or a parameter determined based on the actual operation of the air conditioner (for example, the adjustment parameter of the dehumidification frequency of the compressor, the current operating power of the heating module, etc.).
  • the time point when the compressor frequency is started to be reduced or the time point when the compressor frequency reduction operation is completed can be the starting point of timing, and when the timing period reaches the set period, the fan of the air conditioner is controlled to reduce the dehumidification speed, and/or Or, the electronic expansion valve of the air conditioner is controlled to increase the dehumidification opening degree.
  • the timer will be reset to zero, and the timer will be restarted when the compressor frequency is reduced next time.
  • the adjustment of the fan speed or the opening degree of the electronic expansion valve can be carried out according to the preset adjustment parameters, or can be carried out based on the actually determined adjustment parameters.
  • the adjustment parameters here may specifically include an adjustment range, an adjustment ratio, an adjustment rate, and/or an adjusted target value of the fan or the like.
  • defining the target component to include the fan and/or the electronic expansion valve, defining the adjustment parameter of the dehumidification operation corresponding to the target component as the first target adjustment parameter, and controlling the fan of the air conditioner to reduce the dehumidification speed, and /or, the step of controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening degree includes:
  • Step S221 obtaining the operating power of the heating module and the frequency variation parameter corresponding to the frequency reduction operation of the compressor;
  • the operating power can be obtained through the electrical parameter detection module corresponding to the heating module.
  • the frequency change parameter specifically refers to a parameter that characterizes the frequency change characteristic of the compressor from the time point when the compressor starts to reduce the frequency to the time point when the frequency reduction operation is completed, or from the start of the frequency reduction to the current time point.
  • the frequency change parameter here may include frequency change amplitude, frequency change rate, and the like.
  • the frequency change parameter when the compressor starts to reduce frequency, it is T1, the current time is T2, and the frequency change amplitude from T1 to T2 is ⁇ f, then the frequency change parameter here can be ⁇ f or ⁇ f/ ⁇ T1-T2 ⁇ .
  • Step S222 determining the first target adjustment parameter according to the frequency variation parameter and the operating power
  • the first target adjustment parameter includes a target opening adjustment parameter corresponding to the electronic expansion valve and/or a target rotational speed opening adjustment parameter corresponding to the fan.
  • the dehumidification operating parameters include the fan speed, different frequency change parameters and operating power corresponding to different fan target speed adjustment parameters.
  • the target speed adjustment parameters of the fan corresponding to the current frequency change parameters and operating power can be obtained by calculation or table look-up.
  • the dehumidification operating parameters include when the electronic expansion valve is opened, different frequency change parameters and operating power correspond to different target opening adjustment parameters of the electronic expansion valve.
  • the target opening adjustment parameters of the electronic expansion valve corresponding to the current frequency change parameters and operating power can be obtained by calculation or table look-up through the calculation relationship or mapping relationship between frequency change parameters, operating power and opening adjustment parameters.
  • the adjustment parameters corresponding to the fan and the electronic expansion valve can be determined respectively according to the above method.
  • different frequency change parameters and operating power correspond to different first weights of the electronic expansion valve and second weights of the fan
  • the target opening adjustment parameters of the electronic expansion valve are determined according to the first weight and the set opening adjustment parameters.
  • the second weight and the set opening adjustment parameter determine the target rotational speed adjustment parameter of the fan.
  • Step S223 controlling the target component to adjust the operating parameters according to the first target adjustment parameter.
  • the fan When the first target adjustment parameter includes the target speed adjustment parameter, control the fan to reduce the speed according to the target speed adjustment parameter;
  • the electronic expansion valve is controlled to increase the opening degree according to the target opening degree adjustment parameter.
  • the adjustment parameters of the fan and/or the electronic expansion valve are comprehensively determined based on the frequency change of the compressor adjusted first and the heat dissipation of the heating module, so as to ensure
  • the fan and electronic expansion valve can coordinate and cooperate with the compressor to realize the rapid reduction of the output cooling capacity of the air conditioner, and the heat dissipation of the heating module can effectively offset the cooling capacity output by the adjusted air conditioner, thereby improving the accuracy of the outlet air temperature control and making the outlet air more efficient.
  • the temperature can quickly meet the requirements of being greater than or equal to the inlet air temperature to ensure the satisfaction of the user's comfort during the dehumidification process.
  • the first target adjustment parameter includes the adjustment rate and adjustment range of the operation parameter corresponding to the target component, that is, when the dehumidification operation parameter includes the dehumidification rotational speed, the first target adjustment parameter It includes the speed adjustment rate and the speed adjustment range, and when the dehumidification operation parameter includes the dehumidification opening, the first target adjustment parameter includes the opening adjustment rate and the opening adjustment range.
  • the above-mentioned step S222 includes: determining the adjustment range according to the frequency change parameter, and determining the adjustment rate according to the operating power; wherein, the adjustment range increases as the frequency change parameter increases trend, the adjustment rate has a decreasing trend as the operating power increases.
  • the greater the achievable frequency change the greater the adjustment range of the corresponding fan and/or the electronic expansion valve, thereby ensuring the precise coordination of the refrigeration system to achieve rapid reduction in cooling capacity.
  • the greater the operating power the greater the The larger the heat dissipation, the fan and the electronic expansion valve can be adjusted at a relatively small rate, which is beneficial to ensure that the outlet air temperature can meet the user's comfort needs, and at the same time, the indoor heat exchanger can stay long enough at a relatively low temperature It takes time to achieve the improvement of dehumidification effect, and the temperature and humidity can meet the comfort needs of users.
  • step S21a the step of controlling the compressor of the air conditioner to reduce the dehumidification frequency
  • step S21a the step further includes:
  • Step S01 obtaining the current dehumidification frequency of the compressor when the outlet air temperature is lower than the inlet air temperature
  • Step S02 judging whether the current dehumidification frequency of the compressor is greater than the set minimum frequency
  • step S21a If the current dehumidification frequency of the compressor is greater than the set minimum operating frequency, execute step S21a; if the current dehumidification frequency of the compressor is less than or equal to the set minimum operating frequency, execute step S03.
  • the set minimum frequency specifically refers to the minimum operating frequency of the compressor that is allowed by the noise standard corresponding to the air conditioner and/or the reliable operation requirement of the compressor.
  • Step S03 controlling the fan of the air conditioner to reduce the dehumidification speed, and/or controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening.
  • the adjustment of the fan speed or the opening degree of the electronic expansion valve can be carried out according to the preset adjustment parameters, or can be carried out based on the actually determined adjustment parameters.
  • the adjustment parameters here may specifically include an adjustment range, an adjustment ratio, an adjustment rate, and/or an adjusted target value of the fan or the like.
  • the target component is defined to include the fan and/or the electronic expansion valve
  • the adjustment parameter of the dehumidification operation corresponding to the target component is defined as the second target adjustment parameter
  • the fan of the air conditioner is controlled to reduce the dehumidification speed
  • the step of controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening includes: acquiring the second target adjustment parameter; controlling the target component to adjust the operating parameter according to the second target adjustment parameter; wherein the The method for obtaining the second target adjustment parameter includes: obtaining a preset adjustment parameter corresponding to the target component as the second target adjustment parameter, and determining the second target adjustment parameter according to the temperature deviation between the outlet air temperature and the inlet air temperature.
  • the target adjustment parameter, or, the second target adjustment parameter is determined according to the preset frequency coefficient corresponding to the target component and the current operating frequency of the target component.
  • the step of controlling the fan of the air conditioner to reduce the dehumidification speed includes: obtaining a target speed adjustment parameter; controlling the fan to reduce the dehumidification speed according to the target speed adjustment parameter; wherein, the method of obtaining the target speed adjustment parameter includes one of the following ways:
  • Manner 1 Acquire a preset rotational speed adjustment parameter as the target rotational speed adjustment parameter; specifically, a preset rotational speed adjustment rate or rotational speed adjustment range may be used as the target rotational speed adjustment parameter. For example, reduce 100 rpm from the existing speed.
  • Mode 2 Determine the target speed adjustment parameter according to the temperature deviation between the outlet air temperature and the inlet air temperature; specifically, the target speed adjustment parameter increases with the increase of the temperature deviation. For example, the larger the temperature deviation, the lower the speed. the greater the magnitude.
  • Mode 3 Determine the target rotational speed adjustment parameter according to the preset rotational speed coefficient and the current operating rotational speed of the fan.
  • the step of controlling the electronic expansion valve of the air conditioner to increase the dehumidification opening includes: obtaining a target opening adjustment parameter; controlling the electronic expansion valve to increase the dehumidification opening according to the target opening adjustment parameter; wherein, obtaining the target opening
  • the way to adjust the parameter includes one of the following ways:
  • Method 1 Obtain a preset opening adjustment parameter as the target opening adjustment parameter; specifically, a preset opening adjustment rate or opening adjustment range may be used as the target opening adjustment parameter. For example, increase the fixed step size by k steps on the basis of the existing opening degree.
  • Mode 2 Determine the target opening adjustment parameter according to the temperature deviation between the outlet air temperature and the inlet air temperature; specifically, the target opening adjustment parameter tends to increase with the increase of the temperature deviation. The greater the degree of decrease.
  • Mode 3 Determine the target opening adjustment parameter according to the preset opening coefficient and the current operating opening of the electronic expansion valve.
  • the electronic expansion valve may be adjusted preferentially, and the fan speed may be further adjusted when the opening degree of the electronic expansion valve increases above a preset threshold.
  • the cooling capacity output by the air conditioner is reduced by adjusting the opening degree of the fan and/or the electronic expansion valve, thereby ensuring that the cooling capacity output by the air conditioner can be expanded during the electronic expansion. It can be effectively reduced under the control of the valve and the fan to ensure that the heating effect of the heating module can balance the cooling capacity output by the air conditioner, and to ensure that the outlet air temperature will not drop during the dehumidification process to ensure user comfort.
  • an embodiment of the present application also proposes a computer-readable storage medium, where a temperature and humidity control program is stored on the computer-readable storage medium, and when the temperature and humidity control program is executed by a processor, any one of the above temperature and humidity control methods is implemented Relevant steps of the example.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to the prior art.
  • the computer software products are stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Combustion & Propulsion (AREA)
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Abstract

La présente invention concerne un procédé de régulation de température et d'humidité. Le procédé consiste à : commander un module de chauffage pour chauffer de l'air dans un conduit de sortie d'air d'un climatiseur, et commander l'opération de déshumidification du climatiseur selon des paramètres de déshumidification définis, une amplitude de diminution d'une température ambiante intérieure étant inférieure ou égale à un seuil défini lorsque le climatiseur réalise une opération en utilisant les paramètres de déshumidification définis ; et ajuster des paramètres d'opération de déshumidification du climatiseur de telle sorte qu'une température de sortie d'air du climatiseur soit supérieure ou égale à une température d'entrée d'air du climatiseur. La présente invention concerne en outre un climatiseur et un support de stockage lisible par ordinateur.
PCT/CN2021/107308 2020-12-16 2021-07-20 Climatiseur et procédé de régulation de température et d'humidité pour celui-ci, et support de stockage lisible par ordinateur WO2022127108A1 (fr)

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