WO2024027129A1 - Procédé et appareil de commande pour protection contre surchauffe de climatiseur et climatiseur - Google Patents

Procédé et appareil de commande pour protection contre surchauffe de climatiseur et climatiseur Download PDF

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Publication number
WO2024027129A1
WO2024027129A1 PCT/CN2023/075947 CN2023075947W WO2024027129A1 WO 2024027129 A1 WO2024027129 A1 WO 2024027129A1 CN 2023075947 W CN2023075947 W CN 2023075947W WO 2024027129 A1 WO2024027129 A1 WO 2024027129A1
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WIPO (PCT)
Prior art keywords
temperature
mode
determined
preset
preset threshold
Prior art date
Application number
PCT/CN2023/075947
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English (en)
Chinese (zh)
Inventor
赵江龙
张乃伟
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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Publication of WO2024027129A1 publication Critical patent/WO2024027129A1/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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/62—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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • 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
    • F24F11/70—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
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control 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
    • F24F11/84—Control 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 using valves
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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 embodiments of the present application belong to the technical field of air conditioning, and specifically relate to a control method and device for air conditioning overheat protection and an air conditioner.
  • embodiments of the present application provide a control method, device and air conditioner for overheating protection of air conditioners.
  • embodiments of the present application provide a control method for air conditioner overheat protection, including:
  • the preset overheat protection mechanism is activated.
  • the mode of the air guide plate and the rotation speed of the fan are adjusted according to the first mode and the first rotation speed, and the rotation speed of the fan is obtained.
  • the second temperature of the evaporator including:
  • the method further includes: if it is determined that the fourth temperature is less than the preset threshold, restoring the mode of the air guide plate to the first mode.
  • the preset overheat protection mechanism is activated.
  • the preset overheating protection mechanism is activated.
  • the mode of the air guide plate and the rotation speed of the fan are adjusted according to the first mode and the first rotation speed, and the rotation speed of the fan is obtained.
  • the second temperature of the evaporator also includes:
  • the method further includes: if it is determined that the seventh temperature is less than the preset threshold, restoring the mode of the air guide plate to the first mode.
  • the eighth temperature of the evaporator is obtained; if it is determined that the eighth temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated.
  • the preset overheating protection mechanism is activated.
  • the preset overheating protection mechanism includes one or several combinations of the following: reducing the frequency of the compressor in the outdoor unit of the air conditioner; controlling the frequency of the compressor in the outdoor unit of the air conditioner; The throttling device opens the valve.
  • control device for air conditioner overheat protection including:
  • An acquisition unit configured to acquire the first temperature of the evaporator in the indoor unit of the air conditioner, the first mode of the air guide plate in the indoor unit, and the first rotation speed of the fan in the indoor unit;
  • an adjustment unit configured to adjust the mode of the air guide plate and the rotation speed of the fan according to the first mode and the first rotation speed if it is determined that the first temperature is greater than or equal to the preset threshold, and obtain the second temperature of the evaporator;
  • a starting unit configured to start a preset overheat protection mechanism if it is determined that the second temperature is greater than or equal to a preset threshold.
  • embodiments of the present application provide an air conditioner, including: a processor, a memory, and computer program instructions stored in the memory and executable on the processor.
  • the processor executes the computer program instructions, Methods provided for implementing the first aspect and possible designs in the first aspect.
  • embodiments of the present application may provide a computer-readable storage medium, which stores computer-executable instructions. When executed by a processor, the computer-executable instructions are used to implement the first aspect and the Methods provided by each possible design in the first aspect.
  • embodiments of the present application provide a computer program product, including a computer program, which when executed by a processor is used to implement the first aspect and the methods provided by each possible design in the first aspect.
  • the control method, device and air conditioner for air conditioner overheat protection provided by the embodiments of the present application are.
  • the first temperature of the evaporator in the indoor unit of the air conditioner, the air guide plate in the indoor unit are obtained.
  • the first mode and the first speed of the fan in the indoor unit if it is determined that the first temperature is greater than or equal to the preset threshold, adjust the mode of the air guide plate and the speed of the fan according to the first mode and the first speed, And obtain the second temperature of the evaporator; if it is determined that the second temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated.
  • This application provides an overheating protection control method that can improve the heating effect of air conditioning to a certain extent. After detecting that the evaporator temperature reaches the set temperature, first adjust the fan speed and the air guide mode to make the air conditioner blow out Better heat exchange between hot air and indoor cold air can improve the heating effect of the air conditioner to a certain extent. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheating protection mechanism is activated.
  • Figure 1 is a schematic diagram of the scene of the air conditioner in the heating mode provided by the embodiment of the present application.
  • FIG. 2 is a schematic flowchart of Embodiment 1 of the control method for air conditioner overheat protection provided by the embodiment of the present application;
  • FIG. 3 is a schematic flow chart of Embodiment 2 of the control method for overheating protection of air conditioners provided by the embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of Embodiment 1 of a control device for air conditioning overheat protection provided by an embodiment of the present application;
  • Figure 5 is a schematic structural diagram of Embodiment 2 of a control device for air conditioning overheat protection provided by an embodiment of the present application;
  • Figure 6 is a schematic structural diagram of an air conditioner provided by an embodiment of the present application.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a removable connection. to be detachably connected, or to be connected in one piece; may be mechanical
  • a connection can also be an electrical connection; it can be a direct connection or an indirect connection through an intermediary, or it can be an internal connection between two components.
  • connection can also be an electrical connection; it can be a direct connection or an indirect connection through an intermediary, or it can be an internal connection between two components.
  • the frequency of the compressor when it is detected that the temperature of the evaporator in the indoor unit reaches the set temperature, the frequency of the compressor will be reduced to ensure that the indoor unit will not affect the normal use of the air conditioner due to excessive temperature.
  • the inventive concept of the present application is as follows: after detecting that the temperature of the evaporator reaches the set temperature, first by adjusting the speed of the fan and the mode of the air guide plate, the hot air blown by the air conditioner and the indoor cold air can be better matched Heat exchange can improve the heating effect of air conditioners to a certain extent. Then, the temperature of the evaporator is collected, and when the temperature reaches the set temperature, the overheating protection mechanism is activated.
  • This application provides an overheating protection control method that can improve the heating effect of air conditioning to a certain extent.
  • FIG. 2 is a schematic flowchart of Embodiment 1 of the control method for air conditioner overheat protection provided by the embodiment of the present application. As shown in Figure 2, the control method of the air conditioner overheat protection may include the following steps:
  • Step 201 Obtain the first temperature of the evaporator in the indoor unit of the air conditioner, the first mode of the air guide plate in the indoor unit, and the first rotation speed of the fan in the indoor unit.
  • the method provided by this application can be performed by an air conditioner.
  • the air conditioner can be a hanging air conditioner or a vertical air conditioner with a horizontal air deflector.
  • the air conditioner can obtain the current first temperature of the evaporator in the indoor unit, the current first mode of the air guide plate in the indoor unit, and the current first speed of the fan in the indoor unit.
  • a temperature sensor in the evaporator can be used to collect the average value of the evaporator surface temperature, and the average value is used as the first temperature of the evaporator.
  • the air deflector can be used to control the air outlet angle and can also set the high and low air sweep.
  • the fan in the indoor unit can be used to blow the hot air around the evaporator into the room to implement forced convection, causing the indoor temperature to rise, thereby achieving the purpose of regulating the indoor air temperature.
  • the faster the fan rotates the greater the air volume generated, and under the same conditions, the indoor temperature will rise faster.
  • Step 202 If it is determined that the first temperature is greater than or equal to the preset threshold, adjust the mode of the air guide plate and the rotation speed of the fan according to the first mode and the first rotation speed, and obtain the second temperature of the evaporator.
  • the preset threshold is a temperature value preset according to actual conditions, for example, it can be set to 58 degrees Celsius.
  • the air guide can be adjusted first through the currently collected first mode of the air guide plate and the currently collected first speed of the fan.
  • the mode of the panel and the speed of the fan are used to achieve the purpose of strengthening indoor air circulation, so that hot air not only circulates in the upper part of the room, but also makes the whole house meet the heating requirements as much as possible, thereby improving the heating effect of the air conditioner.
  • the second temperature of the evaporator can be collected.
  • Step 203 If it is determined that the second temperature is greater than or equal to the preset threshold, a preset overheating protection mechanism is activated.
  • the preset overheat protection mechanism is a preset overheat protection mechanism for the air conditioner indoor unit.
  • the preset overheating protection mechanism refers to some mechanisms to ensure that the indoor unit will not affect the normal use of the air conditioner due to excessive temperature.
  • this mechanism can be to reduce the frequency of the compressor in the air conditioner.
  • the collected second temperature of the evaporator can be compared with the preset threshold. If it is determined that the second temperature is greater than or equal to the preset threshold, the preset temperature will be started. Set overheating protection mechanism.
  • step 201 is continued.
  • the control method for air conditioner overheat protection includes: obtaining the first temperature of the evaporator in the indoor unit of the air conditioner, the first mode of the air guide plate in the indoor unit, and the first speed of the fan in the indoor unit; if the first If the temperature is greater than or equal to the preset threshold, adjust the mode of the air guide and the rotation speed of the fan according to the first mode and the first rotation speed, and obtain the second temperature of the evaporator; if it is determined that the second temperature is greater than or equal to the preset If the threshold is set, the preset overheating protection mechanism will be activated.
  • FIG 3 is a schematic flowchart of Embodiment 2 of the control method for air conditioner overheat protection provided by the embodiment of the present application.
  • the control method of the air conditioner overheat protection may include the following steps:
  • Step 301 Obtain the first temperature of the evaporator in the indoor unit of the air conditioner, the first mode of the air guide plate in the indoor unit, and the first rotation speed of the fan in the indoor unit.
  • step 301 and step 201 are similar and will not be described again.
  • step 302A or step 302B may be performed.
  • Step 302A if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first rotational speed is less than the preset maximum rotational speed of the fan, then adjust the rotational speed of the fan to the preset maximum rotational speed; after the first time, obtain the The third temperature.
  • the preset maximum speed is the maximum speed of the fan that is preset according to the actual situation.
  • the first time is a time length value preset according to the actual situation.
  • the speed of the fan can be adjusted first, and the speed of the fan can be adjusted from the current first speed to the preset speed. The highest speed, thereby increasing the air volume and strengthening indoor air circulation. And after the first time has elapsed, the collected third temperature of the evaporator is obtained.
  • Step 303 if it is determined that the third temperature is less than the preset threshold, adjust the fan speed to the first speed; or, if it is determined that the third temperature is greater than or equal to the preset threshold, and it is determined that the first mode is not the down-blowing mode, then The mode of the air guide plate is adjusted to the downward blowing mode; after the second time, the fourth temperature of the evaporator is obtained.
  • the second time is a time length value preset according to the actual situation.
  • the third temperature of the evaporator is compared with the preset threshold. If it is determined that the third temperature is less than the preset threshold, the rotation speed of the fan is adjusted from the preset maximum rotation speed to the original first rotation speed. Then, continue to step 301.
  • the mode of the air guide plate is adjusted, and the mode of the air guide plate is adjusted from the current first mode to the down-blowing mode. mode; thereby causing the wind to blow downward to enhance indoor air circulation.
  • the collected fourth temperature of the evaporator is obtained.
  • Step 304 If it is determined that the fourth temperature is less than the preset threshold, the mode of the air guide plate is restored to the first mode; or, if it is determined that the fourth temperature is greater than or equal to the preset threshold, a preset overheating protection mechanism is activated.
  • the fourth temperature of the evaporator is compared with the preset threshold. If it is determined that the fourth temperature is less than the preset threshold, the mode of the air guide plate is restored from the downward blowing mode to the original first mode. At this time, the fan speed still remains at the preset maximum speed. Then, continue with steps Step 301.
  • the preset overheat protection mechanism is activated.
  • the preset overheat protection mechanism includes one or several combinations of the following: reducing the frequency of the compressor in the outdoor unit of the air conditioner; controlling the throttling device in the outdoor unit to open the valve.
  • opening the valve of the throttling device can reduce the exhaust temperature, which in turn can reduce the temperature of the evaporator, thereby ensuring that the indoor unit will not affect the normal use of the air conditioner due to excessive temperature.
  • the mode of the air guide plate is adjusted to Down blow mode; after the second time, the fifth temperature of the evaporator is obtained.
  • the mode of the air guide plate is adjusted to the mode of the air guide plate. Adjust from the first mode to the down-blowing mode; and after the second time, obtain the fifth temperature of the evaporator.
  • the mode of the air deflector is restored to the first mode; or, if it is determined that the fifth temperature is greater than or equal to the preset threshold, a preset overheating protection mechanism is activated.
  • the fifth temperature can be compared with the preset threshold. If it is determined that the fifth temperature is less than the preset threshold, then the mode of the air guide plate is restored from the down-blowing mode to the first mode, and step 301 is continued; or, if it is determined that the fourth temperature is greater than or equal to the preset threshold, the preset overheat protection mechanism is activated.
  • the preset overheating protection mechanism is activated.
  • the first temperature is greater than or equal to the preset threshold, and the first rotational speed is determined to be equal to the preset maximum rotational speed, and the first mode is determined to be the downblowing mode, there is no need to adjust the mode of the air guide plate and the rotational speed of the fan. Adjust and directly activate the preset overheating protection mechanism.
  • Step 302B if it is determined that the first temperature is greater than or equal to the preset threshold, and it is determined that the first mode is not the down-blowing mode, adjust the mode of the air guide plate to the down-blowing mode; after the third time, obtain the sixth value of the evaporator. temperature.
  • the third time is a time length value preset according to the actual situation.
  • the mode of the air guide plate can also be adjusted first, and the mode of the air guide plate is adjusted from the current first mode to Down blow mode, which in turn causes the wind to blow downward to enhance indoor air circulation. And after the third time has elapsed, the collected sixth temperature of the evaporator is obtained.
  • Step 305 If it is determined that the sixth temperature is less than the preset threshold, the mode of the air guide plate is restored to the first mode; or, if it is determined that the sixth temperature is greater than or equal to the preset threshold, and it is determined that the first rotation speed is less than the preset speed of the fan maximum speed, adjust the fan speed to the preset maximum speed; after the fourth time, obtain the seventh temperature of the evaporator.
  • the fourth time is a time length value preset according to the actual situation.
  • the sixth temperature of the evaporator is compared with the preset threshold. If it is determined that the sixth temperature is less than the preset threshold, the mode of the air guide plate is restored from the downward blowing mode to the original first mode. Then, continue to step 301.
  • the speed of the fan is adjusted from the current first speed to the preset speed. maximum speed; and after the fourth time, obtain the seventh temperature of the evaporator.
  • Step 306 If it is determined that the seventh temperature is less than the preset threshold, the mode of the air guide plate is restored to the first mode; or, if it is determined that the seventh temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated.
  • the seventh temperature of the evaporator is compared with the preset threshold. If it is determined that the seventh temperature is less than the preset threshold, then the mode of the air guide plate is restored from the downward blowing mode to the original first mode; and the execution is continued. Step 301.
  • the preset overheating protection mechanism is activated.
  • the rotational speed of the fan is adjusted to the preset maximum speed.
  • the rotational speed of the fan is adjusted from the first rotational speed to Adjust to the preset maximum speed.
  • the eighth temperature of the evaporator is obtained; if it is determined that the eighth temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated.
  • the eighth temperature of the evaporator is obtained; the eighth temperature is compared with the preset temperature. If it is determined that the eighth temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated. Further, if it is determined that the eighth temperature is less than the preset threshold, step 301 is continued.
  • the preset overheating protection mechanism is activated.
  • the first temperature is greater than or equal to the preset threshold, and the first rotational speed is determined to be equal to the preset maximum rotational speed, and the first mode is determined to be the downblowing mode, there is no need to adjust the mode of the air guide plate and the rotational speed of the fan. Adjust and directly activate the preset overheating protection mechanism.
  • FIG 4 is a schematic structural diagram of Embodiment 1 of a control device for air conditioning overheat protection provided by an embodiment of the present application.
  • the air conditioner overheat protection control device 400 includes:
  • the acquisition unit 410 is used to acquire the first temperature of the evaporator in the indoor unit of the air conditioner, the first mode of the air guide plate in the indoor unit, and the first rotation speed of the fan in the indoor unit;
  • the adjustment unit 420 is configured to, if it is determined that the first temperature is greater than or equal to the preset threshold, adjust the mode of the air guide plate and the rotation speed of the fan according to the first mode and the first rotation speed, and obtain the second temperature of the evaporator;
  • the starting unit 430 is configured to start a preset overheating protection mechanism if it is determined that the second temperature is greater than or equal to the preset threshold.
  • FIG. 5 is a schematic structural diagram of Embodiment 2 of a control device for air conditioning overheat protection provided by an embodiment of the present application.
  • the adjustment unit 420 also includes:
  • the first adjustment module 421 is used to adjust the speed of the fan to the preset maximum speed if it is determined that the first speed is less than the preset maximum speed of the fan;
  • the mode of the air guide plate is restored to the first mode.
  • the first adjustment module 421 is also configured to adjust the mode of the air guide plate if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is not the down-blowing mode. It is the down blow mode;
  • the preset overheat protection mechanism is activated.
  • the first adjustment module 421 is also configured to activate the preset overheating protection mechanism if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is the downblowing mode. .
  • the adjustment unit 420 also includes:
  • the second adjustment module 422 is used to adjust the mode of the air guide plate to the down-blowing mode if it is determined that the first mode is not the down-blowing mode;
  • the mode of the air guide plate is restored to the first mode.
  • the second adjustment module 422 is also configured to adjust the speed of the fan to the preset value if it is determined that the first temperature is greater than or equal to the preset threshold, the first speed is determined to be less than the preset maximum speed, and the first mode is the down-blowing mode. Set the maximum speed;
  • the eighth temperature of the evaporator is obtained; if it is determined that the eighth temperature is greater than or equal to the preset threshold, the preset overheating protection mechanism is activated.
  • the second adjustment module 422 is also configured to activate the preset overheating protection mechanism if it is determined that the first temperature is greater than or equal to the preset threshold, the first rotation speed is equal to the preset maximum rotation speed, and the first mode is the downblowing mode. .
  • the preset overheat protection mechanism includes one or several combinations of the following: reducing the frequency of the compressor in the outdoor unit of the air conditioner; controlling the throttling device in the outdoor unit to open the valve.
  • control device for air conditioner overheat protection provided by the embodiments of the present application can be used to execute the control method for air conditioner overheat protection in any of the above embodiments. Its implementation principles and technical effects are similar and will not be described again here.
  • each unit of the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into a physical entity, or they can also be physically separated. And these units can all be implemented in the form of software calling through processing components; they can also all be implemented in the form of hardware; some units can also be implemented in the form of software calling through processing components, and some units can be implemented in the form of hardware. In addition, all or part of these units can be integrated together or implemented independently.
  • the processing element here may be an integrated circuit with signal processing capabilities. During the implementation process, each step of the above method or each of the above units can be completed by instructions in the form of hardware integrated logic circuits or software in the processor element.
  • FIG. 6 is a schematic structural diagram of an air conditioner provided by an embodiment of the present application.
  • the air conditioner may include: a processor 61, a memory 62, and computer program instructions stored in the memory 62 and executable on the processor 61.
  • the processor 61 executes the computer program instructions, any of the foregoing embodiments can be implemented. Provides control methods for air conditioner overheat protection.
  • the air conditioner may also include an interface for interacting with other devices.
  • the above-mentioned components of the air conditioner can be connected through a system bus.
  • the memory 62 may be a separate storage unit or a storage unit integrated in the processor.
  • the number of processors is one or more.
  • the processor 61 can be a central processing unit (Central Processing Unit, CPU), or other general-purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC) wait.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in this application can be directly implemented by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the system bus may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the system bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.
  • Memory may include random access memory (random access memory) access memory (RAM), and may also include non-volatile memory (non-volatile memory, such as at least one disk memory.
  • the aforementioned program can be stored in a readable memory.
  • the steps including the above method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state hard disk, tape (English: magnetic tape), floppy disk (English: floppy disk), optical disk (English: optical disc) and any combination thereof.
  • the air conditioner provided by the embodiments of the present application can be used to execute the control method for air conditioner overheat protection provided by any of the above method embodiments.
  • the implementation principles and technical effects are similar and will not be described again here.
  • Embodiments of the present application provide a computer-readable storage medium.
  • Computer instructions are stored in the computer-readable storage medium. When the computer instructions are run on a computer, they cause the computer to execute the above control method for air conditioner overheat protection.
  • the above-mentioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory, electrically erasable programmable read-only memory Memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic memory, flash memory, magnetic or optical disk.
  • Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
  • a readable storage medium is coupled to the processor such that the processor can read information from the readable storage medium and write information to the readable storage medium.
  • the readable storage medium may also be an integral part of the processor.
  • the processor and readable storage medium may be located in Application Specific Integrated Circuits (ASICs).
  • ASICs Application Specific Integrated Circuits
  • the processor and the readable storage medium may also exist as discrete components in the device.
  • Embodiments of the present application also provide a computer program product.
  • the computer program product includes a computer program.
  • the computer program is stored in a computer-readable storage medium.
  • At least one processor can read the computer program from the computer-readable storage medium. , when at least one processor executes a computer program, the above control method for air conditioner overheat protection can be implemented.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente demande concerne la technologie de climatisation et concerne un procédé et un appareil de commande pour la protection contre la surchauffe d'un climatiseur, ainsi qu'un climatiseur. Le procédé de commande consiste à : acquérir une première température d'un évaporateur dans une unité intérieure d'un climatiseur, un premier mode d'un déflecteur d'air dans l'unité intérieure et une première vitesse de rotation d'un ventilateur dans l'unité intérieure. S'il est déterminé que la première température est supérieure ou égale à un seuil prédéfini, régler le mode du déflecteur d'air et la vitesse de rotation du ventilateur selon le premier mode et la première vitesse de rotation et acquérir une seconde température de l'évaporateur ; et s'il est déterminé que la seconde température est supérieure ou égale au seuil prédéfini, démarrer un mécanisme de protection contre la surchauffe prédéfini. La présente solution fournit un procédé de commande de protection contre la surchauffe permettant d'améliorer l'effet de chauffage de climatiseurs dans une certaine mesure. Après que la température de l'évaporateur a atteint une température définie, tout d'abord, par réglage de la vitesse de rotation du ventilateur et du mode du déflecteur d'air, de l'air chaud soufflé par le climatiseur peut mieux échanger de la chaleur avec de l'air froid intérieur, puis la température de l'évaporateur est collectée et le mécanisme de protection contre la surchauffe est démarré après que la température a atteint la température définie.
PCT/CN2023/075947 2022-08-01 2023-02-14 Procédé et appareil de commande pour protection contre surchauffe de climatiseur et climatiseur WO2024027129A1 (fr)

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CN115540196B (zh) * 2022-08-01 2023-12-15 青岛海尔空调器有限总公司 空调过热保护的控制方法、装置和空调

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