WO2023005388A1 - Procédé et dispositif de commande de dégivrage de climatiseur, et climatiseur - Google Patents

Procédé et dispositif de commande de dégivrage de climatiseur, et climatiseur Download PDF

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Publication number
WO2023005388A1
WO2023005388A1 PCT/CN2022/094903 CN2022094903W WO2023005388A1 WO 2023005388 A1 WO2023005388 A1 WO 2023005388A1 CN 2022094903 W CN2022094903 W CN 2022094903W WO 2023005388 A1 WO2023005388 A1 WO 2023005388A1
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WIPO (PCT)
Prior art keywords
flow regulating
regulating device
temperature
heat exchanger
air conditioner
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PCT/CN2022/094903
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English (en)
Chinese (zh)
Inventor
李鹏辉
周洪进
赵国胜
李海军
贾香慧
王彩平
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 WO2023005388A1 publication Critical patent/WO2023005388A1/fr

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    • 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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0232—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses
    • F25B2313/02322—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses during defrosting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of intelligent air conditioners, for example, to a method and device for air conditioner defrosting control, and an air conditioner.
  • the defrosting mode of the existing air conditioners is mostly the reverse defrosting method (in the case of heating mode, running defrosting means switching to the cooling mode for a short time), the reverse defrosting method can achieve the defrosting effect, but it greatly affects the air conditioner.
  • the energy efficiency level and capacity, and the four-way valve needs to be switched before each defrosting, which reduces the service life of the air conditioner, and the temporary defrosting will also affect the indoor user experience. That is to say, the existing defrosting method needs to stop and reverse operation, which affects the energy efficiency level, capacity and service life of the air conditioner.
  • Embodiments of the present disclosure provide a method and device for air conditioner defrosting control, and an air conditioner, which can realize the defrosting of the outdoor heat exchanger under the premise of maintaining the heating mode, realize non-stop defrosting, and ensure the operation of the air conditioner. Energy efficiency ratings and capabilities.
  • the method for controlling defrosting of an air conditioner includes: when the defrosting condition is met, controlling to open the flow regulating device to conduct the bypass pipeline, so that the part of the refrigerant discharged from the compressor directly flow to the first interface of the outdoor heat exchanger, and flow into the outdoor heat exchanger through the first interface.
  • the device for air conditioner defrost control includes a processor and a memory storing program instructions, and the processor is configured to execute the aforementioned method for air conditioner defrost control when executing the program instructions.
  • the air conditioner includes a device for air conditioner defrosting control, the first end of the bypass line communicates with the outlet of the compressor, and the second end communicates with the first interface of the outdoor unit; the first interface It is the interface connecting the outdoor unit and the throttling device; the flow regulating device is connected to the bypass pipeline.
  • the method and device for air conditioner defrosting control, and the air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:
  • a bypass pipeline and a flow adjustment device are added.
  • part of the refrigerant discharged from the discharge port of the compressor is directly led to the outside through the bypass pipeline group.
  • the first interface of the heat exchanger that is, the refrigerant inlet in the heating mode
  • the refrigerant discharged from the compressor is directly introduced into the outdoor heat exchanger without passing through the indoor heat exchanger and the throttling device, thereby realizing Non-stop defrosting. That is, there is no need to switch the four-way valve for reversing, and switch the heating mode to the cooling mode to perform reverse defrosting.
  • the non-stop defrosting method of the embodiment of the present disclosure saves energy consumption during operation, improves the energy efficiency of the air conditioner in the heating mode, reduces the number of switching times of the four-way valve, increases the service life of the air conditioner, and ensures the continuous heating of the user. user experience.
  • Fig. 1 is a schematic flow chart of a method for air conditioner defrosting control provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic flowchart of another method for air conditioner defrosting control provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic flow chart of a method for air conditioner defrosting control provided by an embodiment of the present disclosure
  • Fig. 4 is a schematic structural diagram of a device for air conditioner defrosting control provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a refrigeration cycle system of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a refrigeration cycle system of an air conditioner provided by an embodiment of the present disclosure
  • Fig. 7 is a schematic structural diagram of a bypass pipeline set provided by an embodiment of the present disclosure.
  • the term "plurality” means two or more.
  • the character "/" indicates that the preceding and following objects are an "or" relationship.
  • A/B means: A or B.
  • the term “and/or” is an associative relationship describing objects, indicating that there can be three relationships.
  • a and/or B means: A or B, or, A and B, these three relationships.
  • An embodiment of the present disclosure provides a method for controlling defrosting of an air conditioner. As shown in FIG. 5 to FIG.
  • the outlet of the machine 21 is connected, and the second end is connected with the first interface of the outdoor heat exchanger 22, and the first interface is the interface connecting the outdoor heat exchanger 22 and the throttling device 23; the flow regulating device 12 is connected to the bypass pipeline 11 .
  • an embodiment of the present disclosure provides a method for controlling defrosting of an air conditioner, including the following steps:
  • the defrosting condition may be a conventional determination condition, for example, the frosting degree of the indoor heat exchanger, the outdoor ambient temperature, and the like.
  • the defrosting condition includes: the outdoor frost point temperature is lower than a first set temperature and lasts for a first set time period.
  • the outdoor frost point temperature can be obtained through a defrosting sensor installed on the outdoor unit.
  • the first set temperature can be a preset temperature value, for example, the first set temperature is the outdoor dew point temperature in the air conditioner installation area (the dew point temperature is the average dew point temperature in the installation area); or, the first set temperature is obtained from the network Real-time dew point temperature for weather forecast data. Not limited, determined according to actual needs.
  • the defrosting condition can more accurately determine whether the outdoor heat exchanger needs to be defrosted.
  • the state of the outdoor frost point temperature being lower than the first set period of time is continuously maintained for the first set period of time. Then it is judged that the outdoor heat exchanger is in a state that is extremely prone to frosting or has already been frosted. If the outdoor frost point temperature is greater than or equal to the first set temperature when the first set time is reached, the timing is interrupted, and When the outdoor frost point temperature is lower than the first set temperature again, start counting again.
  • the first set duration is determined according to the actual situation.
  • the first set duration is greater than or equal to 2min and less than or equal to 5min; optionally, the first set duration is greater than or equal to 2.5min and less than or equal to 4min ; Optionally, the first set duration is 3min, 4min, 2min, 5min or any other duration within the range of [2min, 5min].
  • a bypass pipeline 11 and a flow regulating device 12 are added on the basis of the air-conditioning refrigeration cycle system.
  • the bypass pipeline group (including the bypass pipeline 11 and the flow regulating device 12 ) directly leads to the first interface of the outdoor heat exchanger 22 (that is, the refrigerant inlet in heating mode), that is, the refrigerant discharged by the compressor 21
  • the refrigerant is directly introduced into the outdoor heat exchanger 22 without passing through the indoor heat exchanger 24 and the throttling device 23, thereby realizing non-stop defrosting.
  • the non-stop defrosting method of the embodiment of the present disclosure saves energy consumption during operation, improves the energy efficiency of the air conditioner in the heating mode, reduces the number of switching times of the four-way valve, increases the service life of the air conditioner, and ensures the continuous heating of the user. user experience.
  • bypass line 11 when the defrosting condition is not satisfied, the bypass line 11 is in a closed state, and the air-conditioning refrigeration cycle system operates normally, for example, the air-conditioning refrigeration cycle system normally operates in a heating mode.
  • the flow regulating device 12 includes an electric valve, and the return flow ratio of the return refrigerant can be adjusted by controlling the opening of the electric valve.
  • control and open the flow regulating device to lead the bypass pipeline including:
  • the outdoor dew point temperature may be a preset value, or may be a real-time dew point temperature acquired through network weather forecast data.
  • the outdoor frost point temperature can be obtained through the defrost sensor installed on the outdoor unit.
  • Current temperature difference outdoor dew point temperature - outdoor frost point temperature. Since the defrosting condition for entering defrosting includes that the outdoor frost point temperature is lower than the outdoor dew point temperature, the current temperature difference must be greater than zero.
  • the positive correlation between the temperature difference ⁇ T and the opening of the flow regulating device is a preset relationship, and the larger the temperature difference ⁇ T, the larger the opening.
  • the temperature difference ⁇ T is divided into multiple adjacent temperature difference ranges from small to large, and each temperature difference range corresponds to an opening degree. From the low-order temperature difference range to the high-order temperature difference range, the opening degree of the flow regulating device increases.
  • the first-order temperature difference range is 0 ⁇ T ⁇ 1, and the corresponding opening is 10%; the second-order temperature difference range is 1 ⁇ T ⁇ 2, and the corresponding opening is 20%; the third-order temperature difference range is 2 ⁇ ⁇ T ⁇ 3, the corresponding opening is 30%; the fourth-order temperature difference range is 3 ⁇ T, and the corresponding opening is 50%; as shown below:
  • the opening degree of the flow regulating device is the percentage of the opening degree in the total opening degree.
  • the range of temperature difference is not limited to the manners listed above, and is determined according to actual needs.
  • the positive correlation between the temperature difference ⁇ T and the opening degree of the flow regulating device is not limited to the above-mentioned manner, and any other manner that can reflect the positive correlation between the two is acceptable.
  • the inner diameter of the bypass pipeline is consistent with the inner diameter of the pipeline of the refrigeration cycle system of the air conditioner. Then, by controlling the opening degree of the flow regulating device, the split ratio of the refrigerant can be determined.
  • the air conditioner further includes a cut-off valve 14, which is respectively connected to the pipelines of the two ports of the flow regulating device 12; then the flow regulating device is controlled to open to the target opening degree, Including: controlling the cut-off valve conduction, and controlling the opening of the flow regulating device to the target opening.
  • the shut-off valve connected to the bypass pipeline can prevent the refrigerant from flowing backward, and ensure that the refrigerant in the bypass pipeline flows from the first end to the second end.
  • the conduction of the control cut-off valve is fully open conduction, which does not play the role of flow adjustment, but only plays the role of intercepting flow.
  • the method for air conditioner defrosting control further includes:
  • the air outlet temperature of the indoor unit is obtained through the temperature sensor arranged at the air outlet of the indoor unit, and the indoor ambient temperature is obtained through the temperature sensor arranged indoors.
  • the air outlet temperature of the indoor unit is greater than or equal to the indoor ambient temperature, so as to ensure that the indoor temperature does not drop during the defrosting period and does not affect the user experience.
  • the air outlet temperature of the indoor unit is lower than the indoor ambient temperature, the air outlet temperature can be increased by reducing the air speed of the indoor unit and the air volume; Large heat transfer, increase the temperature of the air outlet; or reduce the air speed of the indoor unit and reduce the opening of the flow adjustment device at the same time, increase the air speed by reducing the air output and increasing the heat exchange, so as to avoid fluctuations in the indoor ambient temperature and ensure the user Use experience.
  • controlling to reduce the wind speed of the indoor unit includes:
  • the outdoor dew point temperature may be a preset value, or may be a real-time dew point temperature acquired through network weather forecast data.
  • the outdoor frost point temperature can be obtained through the defrost sensor installed on the outdoor unit.
  • Current temperature difference outdoor dew point temperature - outdoor frost point temperature. Since the defrosting condition for entering defrosting includes that the outdoor frost point temperature is lower than the outdoor dew point temperature, the current temperature difference must be greater than zero.
  • the positive correlation between the temperature difference and the wind speed reduction percentage is a preset relationship.
  • the negative correlation between temperature difference and wind speed reduction percentage is as follows:
  • the target wind speed reduction percentage is 30%.
  • the target wind speed reduction percentage is 30%.
  • the negative correlation between the temperature difference and the wind speed reduction percentage is not limited to the above-mentioned method, and other methods that can reflect the negative correlation between the two are also acceptable.
  • the current wind speed can be obtained through the wind speed sensor installed at the air outlet of the indoor unit.
  • the target adjusted wind speed S is obtained by the following formula:
  • S is the adjusted wind speed
  • S is the current wind speed
  • ⁇ is the wind speed reduction percentage
  • the adjustment of the wind speed can be specifically realized by adjusting the rotational speed of the indoor fan.
  • the control to reduce the opening of the flow regulating device includes: controlling the opening of the flow regulating device to decrease to correspond to the low-order temperature difference range adjacent to the current temperature difference range where the current temperature difference is located and the value of the temperature difference range is small of the opening. That is, the opening degree of the control flow regulating device is lowered by one step.
  • the opening of the corresponding flow regulating device is 20%, and if the outlet air temperature of the indoor unit is lower than the indoor ambient temperature, the opening of the controlling flow regulating device is reduced to 10% . That is, the opening degree of the flow regulating device is reduced to within the low-order temperature difference range of 0 ⁇ T ⁇ 1.
  • controlling to reduce the wind speed of the indoor unit and the opening of the flow regulating device includes:
  • controlling to reduce the opening degree of the flow regulating device includes: controlling the opening degree of the flow regulating device to decrease to an opening degree corresponding to a low-order temperature difference range adjacent to the current temperature difference range where the current temperature difference is located and having a small temperature difference range value.
  • the first set opening degree and the second set opening degree are determined according to actual conditions.
  • the first set opening degree is 25% or 30%; the second set opening degree is 10% or 15%.
  • determine the wind speed reduction percentage of the indoor unit wind speed including:
  • control mode of the opening of the flow regulating device and the air outlet wind speed of the indoor unit is as follows:
  • the air outlet temperature of the indoor unit is lower than the indoor ambient temperature. At this time, the air outlet temperature of the indoor unit cannot be raised in time only by reducing the air outlet speed. , so by reducing the opening degree to synergistically ensure the increase of the air outlet temperature of the indoor unit.
  • the method for air conditioner defrosting control further includes:
  • the air outlet temperature of the indoor unit is obtained through the temperature sensor arranged at the air outlet of the indoor unit, and the indoor ambient temperature is obtained through the temperature sensor arranged indoors.
  • control to reduce the wind speed of the indoor unit is performed according to the aforementioned steps S321 to S324.
  • the wind speed of the indoor unit is restored to the wind speed of the indoor unit before the reduction while the opening degree of the flow regulating device is controlled to be reduced.
  • the method for air conditioner defrosting control further includes:
  • the air conditioner When the air conditioner is powered on for the first time and the operation mode is the heating mode, the first running time of the heating operation and/or the second continuous running time of the compressor are obtained.
  • power-on for the first time may refer to power-on operation every time the device is turned on, or may refer to a start-up operation after it has not been turned on for a long time.
  • the long time is not limited, for example, 3-6 months.
  • the second continuous running time refers to the continuous running time of the compressor. Once the compressor stops running, the timing will be stopped and reset to zero, and the timing will be restarted when the compressor is started next time.
  • control to open the flow regulating device to conduct the bypass pipeline Part of the refrigerant discharged from the compressor directly flows to the first interface of the outdoor unit, and then flows into the outdoor heat exchanger through the first interface.
  • the first set running time is 20-40 minutes; optionally, the first set running time is 30 minutes.
  • the second set running time is not less than 3 minutes; optionally, the second set running time is greater than or equal to 3 minutes and less than or equal to 5 minutes.
  • the second set running duration is 3 minutes, 4 minutes or 5 minutes, etc.
  • the flow regulating device is controlled to be closed to block the bypass pipeline, and the operation mode before entering the defrosting mode, for example, the heating mode, is restored.
  • the determination of the end of defrosting is not limited.
  • the method for air conditioner defrosting control further includes:
  • the outdoor heat exchanger temperature may be a coil temperature of the outdoor heat exchanger.
  • control to close the flow regulating device to block the bypass pipeline In the case that the temperature of the outdoor heat exchanger is greater than or equal to the second set temperature, and the duration is greater than or equal to the second set time period, control to close the flow regulating device to block the bypass pipeline.
  • the second set temperature is the lowest temperature value at which the outdoor heat exchanger does not tend to frost.
  • the second set temperature is 4°C, 5°C or 6°C, etc., or any other reasonable set temperature value.
  • the duration refers to the duration during which the temperature of the outdoor heat exchanger is greater than or equal to the second set temperature, and the duration is detected by uninterrupted timing.
  • start timing when it is detected that the temperature of the outdoor heat exchanger is greater than or equal to the second set temperature, start timing; when it is detected that the temperature of the outdoor heat exchanger is greater than or equal to the second set temperature, and the duration is less than the second set time , stop timing and reset to zero.
  • the second set duration is determined according to actual conditions, for example, the second set duration is any value within the range of [25s, 40s].
  • the second set duration is 25s, 30s, 35s or 40s and so on.
  • FIG. 4 provides a device for air conditioner defrosting control, including a processor (processor) 40 and a memory (memory) 41, and may also include a communication interface (Communication Interface) 42 and a bus 43.
  • processor processor
  • memory memory
  • Communication interface 42 may be used for information transfer.
  • the processor 40 can call the logic instructions in the memory 41 to execute the method for air conditioner defrosting control in the above embodiments.
  • logic instructions in the above-mentioned memory 41 may be implemented in the form of software function units and when sold or used as an independent product, they may be stored in a computer-readable storage medium.
  • the memory 41 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 40 executes the function application and data processing by running the program instructions/modules stored in the memory 41 , that is, implements the method for air conditioner defrosting control in the above method embodiments.
  • the memory 41 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the air conditioner, and the like.
  • the memory 41 may include a high-speed random access memory, and may also include a non-volatile memory.
  • An embodiment of the present disclosure provides an air conditioner, including the above-mentioned device for controlling defrosting of an air conditioner.
  • the air conditioner also includes: a bypass pipeline 11 and a flow regulating device 12, the first end of the bypass pipeline 11 communicates with the outlet of the compressor 21, and the second end communicates with the outlet of the outdoor heat exchanger
  • the first interface of 22 is connected; the first interface is the interface connecting the outdoor heat exchanger 22 and the throttling device 23 ; the flow regulating device 12 is connected to the bypass pipeline 11 .
  • the processor 40 of the device for air-conditioning defrosting control can perform the above The method for air conditioner defrosting control of the embodiment.
  • the air conditioner further includes a shut-off valve, and the shut-off valve 14 is respectively connected to the pipelines at the two ports of the flow regulating device 12 .
  • Refrigerant backflow can be avoided, and the refrigerant in the bypass pipeline can be guaranteed to flow from the first end to the second end.
  • the air conditioner further includes a tee 14 respectively disposed at the first end and the second end of the bypass pipeline 11 .
  • a tee 14 respectively disposed at the first end and the second end of the bypass pipeline 11 .
  • To facilitate the bypass line 11 is connected to the pipeline of the refrigeration cycle system.
  • An embodiment of the present disclosure provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned method for controlling defrosting of an air conditioner.
  • An embodiment of the present disclosure provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the The computer executes the above method for air conditioner defrosting control.
  • the above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.
  • the technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc.
  • first element could be called a second element, and likewise, a second element could be called a first element, without changing the meaning of the description, so long as all occurrences of "first element” are renamed consistently and all occurrences of "Second component” can be renamed consistently.
  • the first element and the second element are both elements, but may not be the same element.
  • the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a”, “an” and “the” are intended to include the plural forms as well unless the context clearly indicates otherwise .
  • the term “and/or” as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones.
  • the term “comprise” and its variants “comprises” and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element defined by the phrase “comprising a " does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units may only be a logical function division.
  • multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions.
  • the functions noted in the block may occur out of the order noted in the figures.
  • two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps.
  • each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

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  • Air Conditioning Control Device (AREA)

Abstract

La présente demande concerne le domaine technique des climatiseurs intelligents et divulgue un procédé de commande de dégivrage de climatiseur comprenant les étapes suivantes : lorsqu'une condition de dégivrage est remplie, commander le démarrage du dispositif de régulation de débit pour tourner sur la conduite de dérivation, de sorte qu'une partie d'un fluide frigorigène évacué par un compresseur s'écoule directement vers une première interface d'un échangeur de chaleur extérieur, et s'écoule dans un échangeur de chaleur extérieur à partir de la première interface. Sur la base d'un système de circulation de refroidissement de climatiseur, la conduite de dérivation et le dispositif de régulation de débit sont ajoutés, et lorsque la condition de dégivrage est remplie, la partie du fluide frigorigène évacuée par une sortie du compresseur est directement évacuée vers la première interface de l'échangeur de chaleur extérieur au moyen d'un ensemble de conduites de dérivation, c'est-à-dire que le fluide frigorigène évacué par le compresseur est directement drainé dans l'échangeur de chaleur extérieur sans passer à travers l'échangeur de chaleur intérieur et un dispositif d'étranglement, de sorte à effectuer un dégivrage continu. La présente demande divulgue également un dispositif de commande de dégivrage de climatiseur et un climatiseur.
PCT/CN2022/094903 2021-07-30 2022-05-25 Procédé et dispositif de commande de dégivrage de climatiseur, et climatiseur WO2023005388A1 (fr)

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CN114484739A (zh) * 2022-01-12 2022-05-13 青岛海尔空调器有限总公司 一种空调器除霜控制方法
CN114543267A (zh) * 2022-03-03 2022-05-27 宁波奥克斯电气股份有限公司 一种空调器除霜控制方法、控制装置以及空调器
CN115289647A (zh) * 2022-07-26 2022-11-04 郑州海尔空调器有限公司 用于控制空调的方法、装置、空调和存储介质

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