WO2024093390A1 - 壁挂空调器室内机的控制方法、装置与壁挂空调器室内机 - Google Patents

壁挂空调器室内机的控制方法、装置与壁挂空调器室内机 Download PDF

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Publication number
WO2024093390A1
WO2024093390A1 PCT/CN2023/109352 CN2023109352W WO2024093390A1 WO 2024093390 A1 WO2024093390 A1 WO 2024093390A1 CN 2023109352 W CN2023109352 W CN 2023109352W WO 2024093390 A1 WO2024093390 A1 WO 2024093390A1
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WO
WIPO (PCT)
Prior art keywords
wall
temperature
air conditioner
indoor unit
mounted air
Prior art date
Application number
PCT/CN2023/109352
Other languages
English (en)
French (fr)
Inventor
李雅婷
张乃伟
徐昊
卫洁
曹师增
李建萍
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔空调器有限总公司, 青岛海尔空调电子有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2024093390A1 publication Critical patent/WO2024093390A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56Remote control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature

Definitions

  • the present invention relates to the technical field of household appliances, and in particular to a control method and device for an indoor unit of a wall-mounted air conditioner, and the indoor unit of the wall-mounted air conditioner.
  • Air conditioners can be divided into vertical, wall-mounted, ceiling-mounted, etc. according to different installation methods.
  • Vertical air conditioners are mainly used in public places such as living rooms with large areas, schools, hospitals, etc.
  • Wall-mounted air conditioners are mainly used in indoor environments with moderate areas, such as bedrooms at home.
  • the hot air will automatically rise, which sometimes causes the local temperature above the indoor unit of the wall-mounted air conditioner to overheat, causing the indoor unit of the wall-mounted air conditioner to turn on the thermal protection, and the indoor unit of the wall-mounted air conditioner stops heating, thus affecting its heating effect.
  • the indoor unit of the wall-mounted air conditioner often turns on the thermal protection easily and frequently, and directly reducing the frequency or stopping the heating by turning on the thermal protection method will lead to a decrease in the heating amount, affecting the temperature regulation of the indoor environment, thereby affecting the user's comfort experience.
  • An object of the present invention is to reasonably and effectively adjust an indoor unit of a wall-mounted air conditioner operating in a heating mode by comprehensively considering the ambient temperature and the heat exchanger temperature.
  • a further object of the present invention is to enable thermal protection according to actual conditions under the premise that the indoor ambient temperature is evenly distributed, so as to effectively ensure the heating effect of the indoor unit of the wall-mounted air conditioner.
  • the present invention provides a control method for an indoor unit of a wall-mounted air conditioner, comprising: receiving a trigger signal for starting a heating mode of the indoor unit of the wall-mounted air conditioner and obtaining a set temperature of the indoor unit of the wall-mounted air conditioner; detecting the ambient temperature at a diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of a heat exchanger of the indoor unit of the wall-mounted air conditioner; judging whether the ambient temperature is less than a difference between a set temperature and a preset value, and whether the temperature of the heat exchanger is greater than or equal to a preset thermal protection temperature; and if so, adjusting the opening of an expansion valve of the indoor unit of the wall-mounted air conditioner to cool down the heat exchanger of the indoor unit of the wall-mounted air conditioner.
  • the step of adjusting the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner includes: controlling the opening of the expansion valve to increase, thereby increasing the flow rate of the refrigerant entering the heat exchanger.
  • the indoor unit of the wall-mounted air conditioner is controlled to start a thermal protection mode.
  • the step also includes: re-detecting the ambient temperature and the heat exchanger temperature, and when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, controlling the indoor unit of the wall-mounted air conditioner to turn on the thermal protection mode.
  • the step of controlling the indoor unit of the wall-mounted air conditioner to start a thermal protection mode includes: controlling the indoor unit of the wall-mounted air conditioner to turn off a heating mode for a preset time period.
  • the step of controlling the indoor unit of the wall-mounted air conditioner to turn off the heating mode for a preset time it also includes: re-detecting the heat exchanger temperature, and controlling the indoor unit of the wall-mounted air conditioner to turn on the heating mode again when the heat exchanger temperature is lower than the preset thermal protection temperature.
  • the indoor unit of the wall-mounted air conditioner is controlled to maintain the current heating mode unchanged.
  • the indoor unit of the wall-mounted air conditioner is controlled to maintain the current heating mode unchanged.
  • a control device for a wall-mounted air conditioner indoor unit comprising: a processor and a memory, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement any of the above-mentioned control methods for the wall-mounted air conditioner indoor unit.
  • a wall-mounted air conditioner indoor unit which has the control device of the wall-mounted air conditioner indoor unit.
  • the control method, device and indoor unit of a wall-mounted air conditioner of the present invention receive a trigger signal for starting a heating mode of the wall-mounted air conditioner indoor unit and obtain a set temperature of the wall-mounted air conditioner indoor unit, detect the ambient temperature at a diagonal position of the wall-mounted air conditioner indoor unit and the heat exchanger temperature of the wall-mounted air conditioner indoor unit, judge whether the ambient temperature is less than the difference between the set temperature and a preset value, and whether the heat exchanger temperature is greater than or equal to a preset thermal protection temperature, and if the result is yes, adjust the opening of the expansion valve of the wall-mounted air conditioner indoor unit to cool down the heat exchanger of the wall-mounted air conditioner indoor unit, and can comprehensively consider the ambient temperature and the heat exchanger temperature to affect the indoor unit of the wall-mounted air conditioner running in the heating mode.
  • the indoor unit can be adjusted reasonably and effectively to improve the working reliability of the indoor unit of the wall-mounted air conditioner.
  • control method, device and indoor unit of a wall-mounted air conditioner of the present invention control the opening of the expansion valve to increase and increase the flow rate of the refrigerant entering the heat exchanger to cool down the heat exchanger of the indoor unit of the wall-mounted air conditioner when the ambient temperature is less than the difference between the set temperature and the preset value and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature; when the ambient temperature is less than the difference between the set temperature and the preset value and the heat exchanger temperature is less than the preset thermal protection temperature, or when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the heat exchanger temperature is less than the preset thermal protection temperature, determine that the indoor unit of the wall-mounted air conditioner maintains the current heating mode unchanged; when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, determine that the indoor unit of the wall-mounted air conditioner turns on the thermal protection mode, and can
  • FIG1 is a schematic diagram of a control method for an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention
  • FIG. 2 is a detailed flow chart of a control method for an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention
  • FIG. 3 is a schematic block diagram of a control device for an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the overall structure of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention.
  • This embodiment first provides a control method for a wall-mounted air conditioner indoor unit, which can comprehensively consider the ambient temperature and the heat exchanger temperature to reasonably and effectively adjust the wall-mounted air conditioner indoor unit running in the heating mode, thereby improving the working reliability of the wall-mounted air conditioner indoor unit.
  • Step S102 receiving a trigger signal for starting a heating mode of the indoor unit of the wall-mounted air conditioner and obtaining a set temperature of the indoor unit of the wall-mounted air conditioner;
  • Step S104 detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of the heat exchanger of the indoor unit of the wall-mounted air conditioner;
  • Step S106 determining whether the ambient temperature is less than the difference between the set temperature and the preset value, and whether the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, if so, executing step S108;
  • Step S108 adjusting the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner to cool the heat exchanger of the indoor unit of the wall-mounted air conditioner.
  • step S102 receives a trigger signal for turning on the heating mode of the indoor unit of the wall-mounted air conditioner and obtains the set temperature of the indoor unit of the wall-mounted air conditioner.
  • the trigger signal for turning on the heating mode of the indoor unit of the wall-mounted air conditioner and its set temperature can be obtained in a variety of ways. For example, it can be obtained through a remote control, a display device, a voice device of the indoor unit of the wall-mounted air conditioner, or a mobile terminal bound to the indoor unit of the wall-mounted air conditioner.
  • the mobile terminal can be a smart device that is easy to move, such as a smart phone, a tablet computer, etc.
  • Receiving a trigger signal for turning on the heating mode of the indoor unit of the wall-mounted air conditioner means that the indoor unit of the wall-mounted air conditioner starts to operate in the heating mode.
  • Step S104 detects the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the heat exchanger temperature of the indoor unit of the wall-mounted air conditioner, wherein the diagonal position of the indoor unit of the wall-mounted air conditioner and the heat exchanger can be provided with temperature sensors, so that the ambient temperature and the heat exchanger temperature can be detected by the corresponding temperature sensors.
  • the heat exchanger temperature refers to the temperature of the heat exchanger in the indoor unit of the wall-mounted air conditioner, and when the indoor unit of the wall-mounted air conditioner is operated in the heating mode, the heat exchanger works as a condenser.
  • the indoor unit of the wall-mounted air conditioner can be arranged on one wall of the indoor environment, and a temperature sensor for detecting the ambient temperature can be arranged on the other wall opposite to the indoor unit of the wall-mounted air conditioner.
  • the temperature sensor and the indoor unit of the wall-mounted air conditioner can be located at a diagonal position, that is, the temperature sensor detects the ambient temperature at a position far from the indoor unit of the wall-mounted air conditioner.
  • the temperature sensor in addition to being arranged at a diagonal position of the indoor unit of the wall-mounted air conditioner, can also be arranged slightly lower, that is, it does not measure the ambient temperature at a higher position close to the indoor unit of the wall-mounted air conditioner.
  • the hot air generated When the indoor unit of the wall-mounted air conditioner is running in heating mode, the hot air generated will The ambient temperature of the surrounding or upper area will rise automatically, and it may easily reach the set temperature. However, the overall temperature of the indoor environment may not meet the requirements.
  • a temperature sensor By setting a temperature sensor at the diagonal of the indoor unit of the wall-mounted air conditioner, it is possible to accurately understand whether the overall temperature distribution of the indoor environment is uniform, thereby laying the foundation for accurately judging whether the indoor unit of the wall-mounted air conditioner should turn on thermal protection.
  • Step S106 determines whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature. If the judgment result is yes, that is, the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, step S108 is executed to adjust the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner to cool the heat exchanger of the indoor unit of the wall-mounted air conditioner.
  • the thermal protection Since the current wall-mounted air conditioner indoor unit often directly turns on the thermal protection when the heat exchanger temperature reaches the preset thermal protection temperature, the thermal protection is easily and frequently turned on, resulting in a decrease in the heat of the wall-mounted air conditioner indoor unit, affecting the heating effect of the wall-mounted air conditioner indoor unit. In some cases, turning on the thermal protection is often unnecessary, for example, due to insufficient heat circulation, hot air circulates in the upper part, causing the local temperature above the wall-mounted air conditioner indoor unit to be too high, triggering thermal protection.
  • the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner is adjusted to cool down the heat exchanger of the indoor unit of the wall-mounted air conditioner. That is, although the heat exchanger temperature has reached the preset thermal protection temperature, the ambient temperature at the diagonal of the indoor unit of the wall-mounted air conditioner has not reached the difference between the set temperature and the preset value, indicating that the temperature distribution of the indoor environment is uneven, and the heat exchanger temperature rises due to the circulation of hot air in the upper part. Therefore, the thermal protection is not directly turned on, but the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner is adjusted to achieve cooling of the heat exchanger.
  • adjusting the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner in step S108 may include: controlling the opening of the expansion valve to increase, and increasing the flow rate of the refrigerant entering the heat exchanger.
  • the increase in the flow rate of the refrigerant entering the heat exchanger increases the heating capacity of the heat exchanger, promotes the full circulation of hot air into the indoor environment, makes the temperature distribution of the indoor environment uniform, and can avoid a large amount of hot air from gathering above the indoor unit of the wall-mounted air conditioner, thereby avoiding the hot air from coming to the heat exchanger through the air inlet and causing the temperature of the heat exchanger to rise, that is, the temperature of the heat exchanger can be effectively reduced. Eliminating the wrong cause that causes the thermal protection to be turned on ensures the necessity of turning on the thermal protection, effectively reduces the number and frequency of turning on the thermal protection, and thus ensures the heating capacity and heating effect of the indoor unit of the wall-mounted air conditioner.
  • the control method of the wall-mounted air conditioner indoor unit of this embodiment receives the wall-mounted air conditioner indoor unit A trigger signal for turning on the heating mode and obtaining the set temperature of the indoor unit of the wall-mounted air conditioner, detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of the heat exchanger of the indoor unit of the wall-mounted air conditioner, judging whether the ambient temperature is less than the difference between the set temperature and the preset value, and whether the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, and if the result is yes, adjusting the opening of the expansion valve of the indoor unit of the wall-mounted air conditioner to cool down the heat exchanger of the indoor unit of the wall-mounted air conditioner, and being able to comprehensively consider the ambient temperature and the heat exchanger temperature to reasonably and effectively adjust the indoor unit of the wall-mounted air conditioner operating in the heating mode, thereby improving the working reliability of the indoor unit of the wall-mounted air conditioner.
  • the wall-mounted air conditioner indoor unit can achieve higher technical effects by further optimizing and configuring the above steps.
  • the control method of the wall-mounted air conditioner indoor unit of this embodiment is described in detail below in combination with the introduction of an optional execution process of this embodiment. This embodiment is only an example of the execution process. In the specific implementation, the execution order and operating conditions of some steps can be modified according to the specific implementation requirements.
  • Figure 2 is a detailed flow chart of the control method of the wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
  • the control method of the wall-mounted air conditioner indoor unit may include the following steps:
  • Step S202 receiving a trigger signal for starting a heating mode of the indoor unit of the wall-mounted air conditioner and obtaining a set temperature of the indoor unit of the wall-mounted air conditioner;
  • Step S204 detecting the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the temperature of the heat exchanger of the indoor unit of the wall-mounted air conditioner;
  • Step S206 determining whether the ambient temperature is less than the difference between the set temperature and the preset value, and whether the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, if so, executing step S208, if not, executing step S210;
  • Step S208 controlling the opening of the expansion valve to increase, increasing the flow of the refrigerant entering the heat exchanger, so as to cool the heat exchanger of the indoor unit of the wall-mounted air conditioner;
  • Step S210 determining whether the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and whether the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, if so, executing step S212, if not, executing step S214;
  • Step S212 controlling the indoor unit of the wall-mounted air conditioner to start a thermal protection mode
  • Step S214 determining whether the ambient temperature is less than the difference between the set temperature and the preset value, and whether the heat exchanger temperature is less than the preset thermal protection temperature, if so, executing step S218, if not, executing step S216;
  • Step S216 the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature;
  • Step S218, controlling the indoor unit of the wall-mounted air conditioner to maintain the current heating mode unchanged.
  • step S202 and step S204 receive the trigger signal for starting the heating mode of the indoor unit of the wall-mounted air conditioner and obtain the set temperature of the indoor unit of the wall-mounted air conditioner, detect the ambient temperature at the diagonal position of the indoor unit of the wall-mounted air conditioner and the heat exchanger temperature of the indoor unit of the wall-mounted air conditioner, then compare the difference between the ambient temperature and the set temperature with the preset value, compare the heat exchanger temperature with the preset thermal protection temperature, and adjust the working state of the indoor unit of the wall-mounted air conditioner according to the two comparison results.
  • step S206 determines whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature. If the judgment result of step S206 is yes, that is, the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, step S208 is executed to control the opening of the expansion valve to increase, increase the flow rate of the refrigerant entering the evaporator, so as to cool the heat exchanger of the indoor unit of the wall-mounted air conditioner.
  • the heat exchanger temperature has reached the preset thermal protection temperature
  • the ambient temperature at the diagonal of the indoor unit of the wall-mounted air conditioner has not reached the difference between the set temperature and the preset value, indicating that the temperature distribution of the indoor environment is uneven.
  • the heat exchanger temperature increases due to the circulation of hot air in the upper part. Therefore, the thermal protection is not directly turned on, but the opening of the expansion valve is controlled to increase, increasing the flow rate of refrigerant entering the evaporator to cool the heat exchanger of the indoor unit of the wall-mounted air conditioner.
  • the increase in the flow of refrigerant entering the heat exchanger increases the heating capacity of the heat exchanger, promotes the full circulation of hot air into the indoor environment, makes the temperature distribution of the indoor environment uniform, and can prevent a large amount of hot air from gathering above the indoor unit of the wall-mounted air conditioner, thereby preventing hot air from passing through the air inlet to the heat exchanger and causing the temperature of the heat exchanger to rise, which can effectively reduce the temperature of the heat exchanger. Eliminating the wrong cause that causes the thermal protection to be turned on ensures the necessity of turning on the thermal protection, effectively reducing the number and frequency of turning on the thermal protection, thereby ensuring the heating capacity and heating effect of the indoor unit of the wall-mounted air conditioner.
  • step S210 determines whether the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature. And if the judgment result of step S210 is yes, that is, the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, execute step S212 to control the indoor unit of the wall-mounted air conditioner to turn on the thermal protection mode.
  • the heat exchanger temperature has reached the preset thermal protection temperature
  • the ambient temperature at the diagonal of the indoor unit of the wall-mounted air conditioner has also reached the difference between the set temperature and the preset value, indicating that the temperature distribution of the indoor environment is relatively uniform, and the heat exchanger temperature is not increased due to the circulation of hot air in the upper part. Therefore, the indoor unit of the wall-mounted air conditioner can be controlled to turn on the thermal protection mode. Protection mode, this is a situation where it is necessary to turn on thermal protection.
  • the ambient temperature and the heat exchanger temperature can be re-detected, and when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, the indoor unit of the wall-mounted air conditioner is controlled to start the thermal protection mode.
  • the indoor unit of the wall-mounted air conditioner can be controlled to start the thermal protection mode.
  • the expansion valve opening is controlled to increase, the refrigerant flow entering the heat exchanger is increased, the temperature distribution is promoted to be uniform, and the heat exchanger temperature is lowered, the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is lower than the preset thermal protection temperature, that is, when the indoor ambient temperature is evenly distributed, the heat exchanger temperature does not reach the preset thermal protection temperature. At this time, since the conditions for thermal protection activation are not met, the thermal protection can be avoided.
  • step S214 is executed to determine whether the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature. And if the judgment result of step S214 is yes, that is, the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature, step S218 is executed to control the indoor unit of the wall-mounted air conditioner to maintain the current heating mode unchanged.
  • the heat exchanger temperature has not reached the preset thermal protection temperature
  • the ambient temperature at the diagonal of the indoor unit of the wall-mounted air conditioner has not reached the difference between the set temperature and the preset value, so there is no need to turn on the thermal protection, and the indoor unit of the wall-mounted air conditioner can be controlled to maintain the current heating mode unchanged.
  • step S216 the heat exchanger temperature is less than the preset thermal protection temperature.
  • step S218 can be executed to control the indoor unit of the wall-mounted air conditioner to maintain the current heating mode unchanged.
  • the indoor unit of the wall-mounted air conditioner can be controlled to maintain the current heating mode unchanged.
  • the indoor unit of the wall-mounted air conditioner is controlled to keep the current heating mode unchanged, that is, there is no need to turn on the thermal protection or adjust the speed of the indoor fan.
  • step S212 of controlling the indoor unit of the wall-mounted air conditioner to start the thermal protection mode may include: controlling the indoor unit of the wall-mounted air conditioner to turn off the heating mode for a preset time. And after controlling the indoor unit of the wall-mounted air conditioner to turn off the heating mode for a preset time, it is also possible to: re-detect the heat exchanger temperature, and control the indoor unit of the wall-mounted air conditioner to turn on the heating mode again when the heat exchanger temperature is less than the preset thermal protection temperature.
  • the heat exchanger temperature is re-detected. If the heat exchanger temperature is lower than the preset thermal protection temperature, it means that thermal protection is no longer needed.
  • the indoor unit of the wall-mounted air conditioner can be controlled to turn on the heating mode again to continue to provide heat to the indoor environment to meet the user's comfort needs.
  • the preset value may be 1° C.
  • the preset thermal protection temperature may be 58° C. It should be noted that the specific values of the above preset parameters are only for example, and are not intended to limit the present invention. In other embodiments, other specific values may be set according to actual conditions.
  • the set temperature is 23°C
  • the detected ambient temperature is 22°C
  • the heat exchanger temperature is 50°C
  • the set temperature is 23°C
  • the detected ambient temperature is 22°C
  • the heat exchanger temperature is 59°C
  • the set temperature is 23°C, the detected ambient temperature is 20°C, and the heat exchanger temperature is 50°C, it can be determined that the indoor unit of the wall-mounted air conditioner maintains the current heating mode unchanged. If the set temperature is 23°C, the detected ambient temperature is 20°C, and the heat exchanger temperature is 59°C, it can be determined that the speed of the indoor fan of the indoor unit of the wall-mounted air conditioner increases.
  • the control method of the indoor unit of the wall-mounted air conditioner of the present embodiment is as follows: when the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, the opening of the expansion valve is controlled to increase, and the flow rate of the refrigerant entering the heat exchanger is increased to cool down the heat exchanger of the indoor unit of the wall-mounted air conditioner; when the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature, or when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is less than the preset thermal protection temperature, it is determined that the indoor unit of the wall-mounted air conditioner maintains the current heating mode unchanged; when the ambient temperature is greater than or equal to the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, it is determined that the indoor unit of the wall
  • the thermal protection mode can enable thermal protection according to actual conditions under the premise that the indoor ambient temperature is evenly distributed, avoiding the easy and frequent activation of thermal protection of the indoor unit of the wall-mounted air conditioner, effectively ensuring the heating effect of the indoor unit of the wall-mounted air conditioner and improving the user's comfort experience.
  • FIG3 is a schematic block diagram of a control device 200 for a wall-mounted air conditioner indoor unit according to an embodiment of the present invention.
  • the control device 200 for the wall-mounted air conditioner indoor unit includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and the control program 221 is used to implement the control method for the wall-mounted air conditioner indoor unit of any of the above embodiments when executed by the processor 210. That is, the control method for the wall-mounted air conditioner indoor unit of any of the above embodiments is described from the side of the control device 200 of the wall-mounted air conditioner indoor unit, that is, the control device 200 of the wall-mounted air conditioner indoor unit executes the relevant steps.
  • the processor 210 may be a central processing unit (CPU) or a digital processing unit, etc.
  • the processor 210 sends and receives data through a communication interface.
  • the memory 220 is used to store the program executed by the processor 210.
  • the memory 220 is any medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, and may also be a combination of multiple memories 220.
  • the above-mentioned control program 221 can be downloaded from a computer-readable storage medium to a corresponding computing/processing device or downloaded and installed to the control device 200 via a network (e.g., the Internet, a local area network, a wide area network and/or a wireless network).
  • a network e.g., the Internet, a local area network, a wide area network and/or a wireless network.
  • FIG4 is a schematic diagram of the overall structure of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention.
  • the wall-mounted air conditioner indoor unit 100 may have a control device 200 of the wall-mounted air conditioner indoor unit of the above embodiment. That is, the control device 200 of the wall-mounted air conditioner indoor unit may not be arranged outside the wall-mounted air conditioner indoor unit 100, but may be arranged on the wall-mounted air conditioner indoor unit 100.
  • the wall-mounted air conditioner indoor unit 100 of this embodiment may include: a housing 110, and an air outlet 111 may be provided below the housing 110.
  • the interior of the housing 110 defines a cavity, and the indoor fan and the heat exchanger may be provided in the cavity.
  • the heat exchanger in the cavity works as a condenser, and the indoor fan may deliver the hot air after heat exchange by the heat exchanger to the indoor environment through the air outlet 111.
  • a transverse guide plate 112 and a vertical guide plate may be provided at the air outlet 111, wherein the vertical guide plate may adjust the left and right air outlets, and the transverse guide plate 112 may adjust the up and down air outlets.
  • the control method of the indoor unit of the wall-mounted air conditioner in the above embodiment when the ambient temperature is less than the difference between the set temperature and the preset value, and the heat exchanger temperature is greater than or equal to the preset thermal protection temperature, the control The opening of the expansion valve increases, and the flow rate of the refrigerant entering the heat exchanger is increased to cool down the heat exchanger of the wall-mounted air conditioner indoor unit 100.
  • the heat exchanger temperature has reached the preset thermal protection temperature
  • the ambient temperature at the diagonal of the wall-mounted air conditioner indoor unit 100 has not yet reached the difference between the set temperature and the preset value, indicating that the temperature distribution of the indoor environment is uneven, and the heat exchanger temperature rises due to the circulation of hot air in the upper part.
  • the thermal protection is not directly turned on, but the opening of the expansion valve is controlled to increase, and the flow rate of the refrigerant entering the heat exchanger is increased to cool down the heat exchanger of the wall-mounted air conditioner indoor unit 100.
  • the increase in the flow rate of refrigerant entering the heat exchanger increases the heating capacity of the heat exchanger, promotes the full circulation of hot air into the indoor environment, makes the temperature distribution of the indoor environment uniform, and can prevent a large amount of hot air from gathering above the indoor unit 100 of the wall-mounted air conditioner, thereby preventing the hot air from coming to the heat exchanger through the air inlet and causing the temperature of the heat exchanger to rise, that is, the temperature of the heat exchanger can be effectively reduced.
  • other measures can be taken to promote uniform distribution of indoor ambient temperature and reduce the temperature of the heat exchanger without turning on thermal protection.
  • the speed of the indoor fan of the wall-mounted air conditioner indoor unit 100 can be controlled to increase. By increasing the speed of the indoor fan to increase the air flow rate, the indoor ambient air flow is accelerated, and the temperature distribution can be uniformly promoted and the heat exchanger temperature can be reduced.
  • the posture of the transverse guide plate 112 can be adjusted to enable the wall-mounted air conditioner indoor unit 100 to blow air downward.
  • the wall-mounted air conditioner indoor unit 100 can achieve downward blowing, which can prevent a large amount of hot air from gathering above the wall-mounted air conditioner indoor unit 100, thereby preventing the hot air from passing through the air inlet to the heat exchanger to cause the temperature of the heat exchanger to rise, that is, the temperature of the heat exchanger can be effectively reduced, and the hot air can be promoted to fully circulate in the indoor environment, so that the temperature distribution of the indoor environment is uniform.
  • any one of the above measures can be used alone to promote uniform temperature distribution and reduce the temperature of the heat exchanger, or any two or three of them can be used together to promote uniform temperature distribution and reduce the temperature of the heat exchanger.

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Abstract

提供了一种壁挂空调器室内机的控制方法、装置与壁挂空调器室内机。壁挂空调器室内机的控制方法包括:接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度;检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度;判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度;以及若是,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温。在室内环境温度分布均匀的前提条件下再根据实际情况开启热保护,避免壁挂空调器室内机轻易、频繁地开启热保护,保障壁挂空调器室内机的制热效果。

Description

壁挂空调器室内机的控制方法、装置与壁挂空调器室内机 技术领域
本发明涉及家电技术领域,特别是涉及一种壁挂空调器室内机的控制方法、装置与壁挂空调器室内机。
背景技术
随着社会发展以及人们的生活水平不断提高,各种空气调节装置已经成为人们日常生活中不可或缺的电气设备之一。各种空气调节装置可以在环境温度过高或过低时,帮助人们达到一个能够适应的温度。
目前的空气调节装置主要包括各种类型的空调器以及风扇,其中空调器按照设置方式不同可以分为立式、壁挂式、吊顶式等。其中立式空调器主要用于面积较大的客厅、学校、医院等公共场所。壁挂式空调器则主要应用于面积适中的室内环境,例如家中的卧室等。
在壁挂空调器室内机运行于制热模式的过程中,由于热空气会自动上升,有时候会导致壁挂空调器室内机上方局部温度过热,使得壁挂空调器室内机开启热保护,壁挂空调器室内机停止制热从而影响其制热效果。目前的壁挂空调器室内机往往很轻易、频繁地开启热保护,而通过开启热保护的方法直接降频或停止制热会导致制热量降低,影响对室内环境的温度调节,从而影响用户的舒适度体验。
发明内容
本发明的一个目的是综合考虑环境温度和换热器温度对运行于制热模式的壁挂空调器室内机进行合理有效地调节。
本发明一个进一步的目的是在室内环境温度分布均匀的前提条件下再根据实际情况开启热保护,有效保障壁挂空调器室内机的制热效果。
特别地,本发明提供了一种壁挂空调器室内机的控制方法,包括:接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度;检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度;判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度;以及若是,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温。
可选地,调节壁挂空调器室内机的膨胀阀的开度的步骤包括:控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量。
可选地,在环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制壁挂空调器室内机开启热保护模式。
可选地,在调节壁挂空调器室内机的膨胀阀的开度的步骤之后还包括:重新检测环境温度和换热器温度,在环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制壁挂空调器室内机开启热保护模式。
可选地,控制壁挂空调器室内机开启热保护模式的步骤包括:控制壁挂空调器室内机关闭制热模式预设时长。
可选地,在控制壁挂空调器室内机关闭制热模式预设时长的步骤之后还包括:重新检测换热器温度,并在换热器温度小于预设热保护温度的情况下,控制壁挂空调器室内机重新开启制热模式。
可选地,在环境温度小于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,控制壁挂空调器室内机保持当前制热模式不变。
可选地,在环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,控制壁挂空调器室内机保持当前制热模式不变。
根据本发明的另一个方面,还提供了一种壁挂空调器室内机的控制装置,包括:处理器以及存储器,存储器内存储有控制程序,控制程序被处理器执行时用于实现上述任一项的壁挂空调器室内机的控制方法。
根据本发明的再一个方面,还提供了一种壁挂空调器室内机,其具有上述壁挂空调器室内机的控制装置。
本发明的壁挂空调器室内机的控制方法、装置与壁挂空调器室内机,通过接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度,检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度,判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,并在结果为是的情况下,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温,能够综合考虑环境温度和换热器温度对运行于制热模式的壁挂空调器室 内机进行合理有效地调节,提高壁挂空调器室内机的工作可靠性。
进一步地,本发明的壁挂空调器室内机的控制方法、装置与壁挂空调器室内机,在环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,以对壁挂空调器室内机的换热器进行降温;在环境温度小于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,或者在环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,确定壁挂空调器室内机保持当前制热模式不变;在环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,确定壁挂空调器室内机开启热保护模式,能够在室内环境温度分布均匀的前提条件下再根据实际情况开启热保护,避免壁挂空调器室内机轻易、频繁地开启热保护,有效保障壁挂空调器室内机的制热效果,提升用户的舒适度体验。
根据下文结合附图对本发明具体实施例的详细描述,本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解,这些附图未必是按比例绘制的。附图中:
图1是根据本发明一个实施例的壁挂空调器室内机的控制方法的示意图;
图2是根据本发明一个实施例的壁挂空调器室内机的控制方法的详细流程图;
图3是根据本发明一个实施例的壁挂空调器室内机的控制装置的示意框图;以及
图4是根据本发明一个实施例的壁挂空调器室内机的整体结构示意图。
具体实施方式
本实施例首先提供了一种壁挂空调器室内机的控制方法,能够综合考虑环境温度和换热器温度对运行于制热模式的壁挂空调器室内机进行合理有效地调节,提升壁挂空调器室内机的工作可靠性。图1是根据本发明一个实 施例的壁挂空调器室内机的控制方法的示意图。如图1所示,该壁挂空调器室内机的控制方法可以执行以下步骤:
步骤S102,接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度;
步骤S104,检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度;
步骤S106,判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,若是,执行步骤S108;
步骤S108,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温。
在以上步骤中,步骤S102接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度,具体地,壁挂空调器室内机开启制热模式的触发信号和其设定温度均可以通过多种方式获取。例如,可以通过壁挂空调器室内机的遥控器、显示装置、语音装置或者与壁挂空调器室内机绑定的移动终端获取。其中移动终端可以是便于移动的智能设备,例如智能手机、平板电脑等。接收壁挂空调器室内机开启制热模式的触发信号,意味着壁挂空调器室内机开始运行于制热模式。
步骤S104检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度,其中壁挂空调器室内机对角线位置处以及换热器处均可以设置有温度传感器,从而通过对应的温度传感器可以检测得到环境温度和换热器温度。换热器温度指的是壁挂空调器室内机中的换热器的温度,在壁挂空调器室内机运行于制热模式的情况下,该换热器作为冷凝器工作。
需要说明的是,一般地,壁挂空调器室内机可以设置于室内环境的一面墙壁上,与壁挂空调器室内机相对的另一面墙壁上可以设置有用于检测环境温度的温度传感器。并且,该温度传感器与壁挂空调器室内机可以是对角线的位置,即该温度传感器检测得到的是距离壁挂空调器室内机较远位置处的环境温度。在一种优选的实施例中,该温度传感器除了设置于壁挂空调器室内机的对角线处,还可以设置地稍微较低,即其测量的不是靠近壁挂空调器室内机且较高位置处的环境温度。
由于在壁挂空调器室内机运行于制热模式的情况下,产生的热空气会自 动上升,其周围或者上方区域的环境温度很容易升高,可能会很容易就达到设定温度。但是室内环境的整体温度则可能没有达到要求,通过在壁挂空调器室内机的对角线处设置温度传感器,可以准确地了解室内环境的整体温度分布是否均匀,从而可以为后续准确地判断壁挂空调器室内机是否开启热保护奠定基础。
步骤S106判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,并在判断结果为是,即环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,执行步骤S108,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温。
由于目前的壁挂空调器室内机往往在换热器温度达到预设热保护温度的情况下就直接开启热保护,使得热保护轻易、频繁地开启,导致壁挂空调器室内机制热量降低,影响壁挂空调器室内机的制热效果。而一些开启热保护的情况往往是没有必要的,例如由于热量循环不充分,热空气在上部循环导致壁挂空调器室内机上方局部温度过高引发的热保护。
本实施例在环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温。即虽然换热器温度达到了预设热保护温度,但是由于壁挂空调器室内机对角线处的环境温度还没有达到设定温度与预设值之差,说明室内环境的温度分布不均匀,是由于热空气在上部循环导致的换热器温度升高,因此并不直接开启热保护,而是对壁挂空调器室内机的膨胀阀的开度进行调节,实现对换热器的降温。
在一种具体的实施例中,步骤S108中调节壁挂空调器室内机的膨胀阀的开度可以包括:控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量。进入换热器的制冷剂的流量增加,使得换热器的制热量增加,促进热空气进入室内环境充分循环,使得室内环境的温度分布均匀,并可以避免大量热空气在壁挂空调器室内机上方聚集,进而避免热空气通过进风口来到换热器处导致换热器的温度升高,即可以有效降低换热器的温度。排除导致热保护开启的错误原因,保证了热保护开启的必要性,有效减少开启热保护的次数和频率,从而保障壁挂空调器室内机的制热量和制热效果。
本实施例的壁挂空调器室内机的控制方法,通过接收壁挂空调器室内机 开启制热模式的触发信号并获取壁挂空调器室内机的设定温度,检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度,判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,并在结果为是的情况下,调节壁挂空调器室内机的膨胀阀的开度,以对壁挂空调器室内机的换热器进行降温,能够综合考虑环境温度和换热器温度对运行于制热模式的壁挂空调器室内机进行合理有效地调节,提高壁挂空调器室内机的工作可靠性。
在一些可选实施例中,可以通过对上述步骤的进一步优化和配置使得壁挂空调器室内机实现更高的技术效果,以下结合对本实施例的一个可选执行流程的介绍对本实施例的壁挂空调器室内机的控制方法进行详细说明,该实施例仅为对执行流程的举例说明,在具体实施时,可以根据具体实施需求,对部分步骤的执行顺序、运行条件进行修改。图2是根据本发明一个实施例的壁挂空调器室内机的控制方法的详细流程图,该壁挂空调器室内机的控制方法可以包括以下步骤:
步骤S202,接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度;
步骤S204,检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度;
步骤S206,判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,若是,执行步骤S208,若否,执行步骤S210;
步骤S208,控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,以对壁挂空调器室内机的换热器进行降温;
步骤S210,判断环境温度是否大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,若是,执行步骤S212,若否,执行步骤S214;
步骤S212,控制壁挂空调器室内机开启热保护模式;
步骤S214,判断环境温度是否小于设定温度与预设值之差,并且换热器温度小于预设热保护温度,若是,执行步骤S218,若否,执行步骤S216;
步骤S216,环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度;
步骤S218,控制壁挂空调器室内机保持当前制热模式不变。
在以上步骤中,首先执行步骤S202和步骤S204,接收壁挂空调器室内机开启制热模式的触发信号并获取壁挂空调器室内机的设定温度,检测壁挂空调器室内机对角线位置处的环境温度以及壁挂空调器室内机的换热器温度,然后通过将环境温度和设定温度与预设值之差进行比较,将换热器温度与预设热保护温度进行比较,根据两项比较结果对壁挂空调器室内机的工作状态进行调节。
具体地,步骤S206判断环境温度是否小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度,在步骤S206的判断结果为是,即环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,执行步骤S208,控制膨胀阀的开度增大,增加进入蒸发器的制冷剂的流量,以对壁挂空调器室内机的换热器进行降温。
这种情况下,虽然换热器温度达到了预设热保护温度,但是由于壁挂空调器室内机对角线处的环境温度还没有达到设定温度与预设值之差,说明室内环境的温度分布不均匀,是由于热空气在上部循环导致的换热器温度升高,因此并不直接开启热保护,而是控制膨胀阀的开度增大,增加进入蒸发器的制冷剂的流量,以对壁挂空调器室内机的换热器进行降温。
进入换热器的制冷剂的流量增加,使得换热器的制热量增加,促进热空气进入室内环境充分循环,使得室内环境的温度分布均匀,并可以避免大量热空气在壁挂空调器室内机上方聚集,进而避免热空气通过进风口来到换热器处导致换热器的温度升高,即可以有效降低换热器的温度。排除导致热保护开启的错误原因,保证了热保护开启的必要性,有效减少开启热保护的次数和频率,从而保障壁挂空调器室内机的制热量和制热效果。
在步骤S206的判断结果为否的情况下,执行步骤S210,判断环境温度是否大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度。并且在步骤S210的判断结果为是,即环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,执行步骤S212,控制壁挂空调器室内机开启热保护模式。这种情况下,换热器温度达到了预设热保护温度,壁挂空调器室内机对角线处的环境温度也达到了设定温度与预设值之差,说明室内环境的温度分布比较均匀,并不是由于热空气在上部循环导致的换热器温度升高,因此可以控制壁挂空调器室内机开启热 保护模式,此时属于有必要开启热保护的情况。
需要说明的是,在调节壁挂空调器室内机的膨胀阀的开度的步骤之后,即步骤S208控制膨胀阀的开度增大之后可以重新检测环境温度和换热器温度,在环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制壁挂空调器室内机开启热保护模式。也就是说,如果通过控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,促进温度分布均匀、降低换热器温度之后,还是达到了开启热保护的条件,则可以控制壁挂空调器室内机开启热保护模式。
如果通过控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,促进温度分布均匀、降低换热器温度之后,环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度,即室内环境温度分布均匀的情况下,换热器温度没有达到预设热保护温度,此时由于没有达到热保护开启的条件,从而可以避免开启热保护。
在步骤S210的判断结果为否的情况下,执行步骤S214,判断环境温度是否小于设定温度与预设值之差,并且换热器温度小于预设热保护温度。并且在步骤S214的判断结果为是,即环境温度小于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,执行步骤S218,控制壁挂空调器室内机保持当前制热模式不变。这种情况下,换热器温度没有达到预设热保护温度,壁挂空调器室内机对角线处的环境温度也没有达到设定温度与预设值之差,因此无需开启热保护,控制壁挂空调器室内机保持当前制热模式不变即可。
由于将环境温度和设定温度与预设值之差进行比较,换热器温度与预设热保护温度进行比较,二者综合的比较结果总共有四种,按照图2示出的步骤执行顺序,在步骤S214的判断结果为否的情况下,可以准确无误地确定是环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度,即执行步骤S216。并且,在执行步骤S216之后可以执行步骤S218,控制壁挂空调器室内机保持当前制热模式不变。
也就是说,在环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,由于壁挂空调器室内机对角线处的环境温度达到设定温度与预设值之差,但是换热器温度没有达到预设热保护温度,因此无需开启热保护,控制壁挂空调器室内机保持当前制热模式不变即可。 控制壁挂空调器室内机保持当前制热模式不变,即无需开启热保护或对室内风机的转速进行调节。
其中,步骤S212控制壁挂空调器室内机开启热保护模式可以包括:控制壁挂空调器室内机关闭制热模式预设时长。并且,在控制壁挂空调器室内机关闭制热模式预设时长之后还可以:重新检测换热器温度,并在换热器温度小于预设热保护温度的情况下,控制壁挂空调器室内机重新开启制热模式。
也就是说,在控制壁挂空调器室内机开启热保护模式,即关闭制热模式预设时长之后,重新检测换热器温度,如果换热器温度小于预设热保护温度,说明不再需要进行热保护,可以控制壁挂空调器室内机重新开启制热模式,继续向室内环境提供热量,满足用户的舒适度需求。
需要说明的是,在一种具体的实施例中,预设值可以是1℃,预设热保护温度可以是58℃。需要说明的是,上述预设参数的具体数值仅为例举,而并非对本发明的限定。在其他一些实施例中,还可以根据实际情况设置为其他具体数值。
以下对几个具体实施例进行介绍:如果设定温度是23℃,检测到的环境温度是22℃,换热器温度是50℃,那么可以确定壁挂空调器室内机保持当前制热模式不变。如果设定温度是23℃,检测到的环境温度是22℃,换热器温度是59℃,那么可以确定壁挂空调器室内机开启热保护模式。
如果设定温度是23℃,检测到的环境温度是20℃,换热器温度是50℃,那么可以确定壁挂空调器室内机保持当前制热模式不变。如果设定温度是23℃,检测到的环境温度是20℃,换热器温度是59℃,那么可以确定壁挂空调器室内机的室内风机的转速升高。
本实施例的壁挂空调器室内机的控制方法,在环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,以对壁挂空调器室内机的换热器进行降温;在环境温度小于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,或者在环境温度大于等于设定温度与预设值之差,并且换热器温度小于预设热保护温度的情况下,确定壁挂空调器室内机保持当前制热模式不变;在环境温度大于等于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,确定壁挂空调器室内机开 启热保护模式,能够在室内环境温度分布均匀的前提条件下再根据实际情况开启热保护,避免壁挂空调器室内机轻易、频繁地开启热保护,有效保障壁挂空调器室内机的制热效果,提升用户的舒适度体验。
本实施例还提供了一种壁挂空调器室内机的控制装置,图3是根据本发明一个实施例的壁挂空调器室内机的控制装置200的示意框图。该壁挂空调器室内机的控制装置200包括处理器210和存储器220,其中存储器220存储有控制程序221,并且控制程序221被处理器210执行时用于实现上述任一实施例的壁挂空调器室内机的控制方法。即上述任一实施例的壁挂空调器室内机的控制方法均是从壁挂空调器室内机的控制装置200一侧进行描述,即由壁挂空调器室内机的控制装置200执行相关步骤。
处理器210可以是一个中央处理单元(central processing unit,简称CPU),或者为数字处理单元等等。处理器210通过通信接口收发数据。存储器220用于存储处理器210执行的程序。存储器220是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何介质,也可以是多个存储器220的组合。上述控制程序221可以从计算机可读存储介质下载到相应计算/处理设备或者经由网络(例如因特网、局域网、广域网和/或无线网络)下载并安装到控制装置200。
本实施例还提供了一种壁挂空调器室内机,图4是根据本发明一个实施例的壁挂空调器室内机100的整体结构示意图。壁挂空调器室内机100可以具有上述实施例的壁挂空调器室内机的控制装置200。也就是说,壁挂空调器室内机的控制装置200可以不设置于壁挂空调器室内机100以外,而是可以设置在壁挂空调器室内机100上。
如图4所示,本实施例的壁挂空调器室内机100可以包括:壳体110,并且壳体110下方可以设置有出风口111。具体地,壳体110的内部限定有空腔,室内风机和换热器可以设置于空腔中。在壁挂空调器室内机100运行于制热模式的情况下,空腔中的换热器作为冷凝器工作,室内风机可以将换热器换热后的热空气通过出风口111送向室内环境。此外,出风口111处还可以设置有横向导板112和竖向导板,其中竖向导板可以调节左右出风,横向导板112可以调节上下出风。
上文实施例中的壁挂空调器室内机的控制方法,在环境温度小于设定温度与预设值之差,并且换热器温度大于等于预设热保护温度的情况下,控制 膨胀阀的开度增大,增加进入换热器的制冷剂的流量,以对壁挂空调器室内机100的换热器进行降温。虽然换热器温度达到了预设热保护温度,但是由于壁挂空调器室内机100对角线处的环境温度还没有达到设定温度与预设值之差,说明室内环境的温度分布不均匀,是由于热空气在上部循环导致的换热器温度升高。对于因热空气在上部循环导致的换热器温度升高的情况,并不直接开启热保护,而是通过控制膨胀阀的开度增大,增加进入换热器的制冷剂的流量,以对壁挂空调器室内机100的换热器进行降温。
进入换热器的制冷剂的流量增加,使得换热器的制热量增加,促进热空气进入室内环境充分循环,使得室内环境的温度分布均匀,并可以避免大量热空气在壁挂空调器室内机100上方聚集,进而避免热空气通过进风口来到换热器处导致换热器的温度升高,即可以有效降低换热器的温度。
在其他一些实施例中,还可以通过其他措施在不必要开启热保护的情况下促进室内环境温度分布均匀以及对换热器的温度进行降低。例如,可以控制壁挂空调器室内机100的室内风机的转速升高。通过升高室内风机的转速增加空气流速,使得室内环境空气流动加快,也可以促进温度分布均匀,降低换热器温度。
再例如,可以调节横向导板112的姿态,使壁挂空调器室内机100实现向下吹风。壁挂空调器室内机100实现向下吹风,可以避免大量热空气在壁挂空调器室内机100上方聚集,进而避免热空气通过进风口来到换热器处导致换热器的温度升高,即可以有效降低换热器的温度,并可以促进热空气在室内环境中充分循环,使得室内环境的温度分布均匀。
在一些具体的实施例中,对于控制膨胀阀的开度增大、控制室内风机的转速升高、调节横向导板112的姿态,使壁挂空调器室内机100实现向下吹风三种措施,可以单独采用以上任一种措施促进温度分布均匀,降低换热器温度,或者还可以采用其中任意两种或者其中三种共同促进温度分布均匀,降低换热器温度。
至此,本领域技术人员应认识到,虽然本文已详尽示出和描述了本发明的多个示例性实施例,但是,在不脱离本发明精神和范围的情况下,仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此,本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种壁挂空调器室内机的控制方法,包括:
    接收所述壁挂空调器室内机开启制热模式的触发信号并获取所述壁挂空调器室内机的设定温度;
    检测所述壁挂空调器室内机对角线位置处的环境温度以及所述壁挂空调器室内机的换热器温度;
    判断所述环境温度是否小于所述设定温度与预设值之差,并且所述换热器温度大于等于预设热保护温度;以及
    若是,调节所述壁挂空调器室内机的膨胀阀的开度,以对所述壁挂空调器室内机的换热器进行降温。
  2. 根据权利要求1所述的方法,其中调节所述壁挂空调器室内机的膨胀阀的开度的步骤包括:
    控制所述膨胀阀的开度增大,增加进入所述换热器的制冷剂的流量。
  3. 根据权利要求1所述的方法,其中,
    在所述环境温度大于等于所述设定温度与预设值之差,并且所述换热器温度大于等于所述预设热保护温度的情况下,控制所述壁挂空调器室内机开启热保护模式。
  4. 根据权利要求1所述的方法,其中在调节所述壁挂空调器室内机的膨胀阀的开度的步骤之后还包括:
    重新检测所述环境温度和所述换热器温度,在所述环境温度大于等于所述设定温度与预设值之差,并且所述换热器温度大于等于所述预设热保护温度的情况下,控制所述壁挂空调器室内机开启热保护模式。
  5. 根据权利要求3或4所述的方法,其中控制所述壁挂空调器室内机开启热保护模式的步骤包括:
    控制所述壁挂空调器室内机关闭制热模式预设时长。
  6. 根据权利要求5所述的方法,其中在控制所述壁挂空调器室内机关闭 制热模式预设时长的步骤之后还包括:
    重新检测所述换热器温度,并在所述换热器温度小于所述预设热保护温度的情况下,控制所述壁挂空调器室内机重新开启制热模式。
  7. 根据权利要求1-4中任一项所述的方法,其中,
    在所述环境温度小于所述设定温度与预设值之差,并且所述换热器温度小于所述预设热保护温度的情况下,控制所述壁挂空调器室内机保持当前制热模式不变。
  8. 根据权利要求1-4中任一项所述的方法,其中,
    在所述环境温度大于等于所述设定温度与预设值之差,并且所述换热器温度小于所述预设热保护温度的情况下,控制所述壁挂空调器室内机保持当前制热模式不变。
  9. 一种壁挂空调器室内机的控制装置,包括处理器和存储器,其中所述存储器存储有控制程序,并且控制程序被所述处理器执行时用于实现根据权利要求1至8中任一项所述的壁挂空调器室内机的控制方法。
  10. 一种壁挂空调器室内机,其具有根据权利要求9所述的壁挂空调器室内机的控制装置。
PCT/CN2023/109352 2022-10-31 2023-07-26 壁挂空调器室内机的控制方法、装置与壁挂空调器室内机 WO2024093390A1 (zh)

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