WO2024103687A1 - Control method and control apparatus of air conditioner, and air conditioner - Google Patents

Control method and control apparatus of air conditioner, and air conditioner Download PDF

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Publication number
WO2024103687A1
WO2024103687A1 PCT/CN2023/097178 CN2023097178W WO2024103687A1 WO 2024103687 A1 WO2024103687 A1 WO 2024103687A1 CN 2023097178 W CN2023097178 W CN 2023097178W WO 2024103687 A1 WO2024103687 A1 WO 2024103687A1
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WO
WIPO (PCT)
Prior art keywords
oil return
frequency
mode
compressor
ambient temperature
Prior art date
Application number
PCT/CN2023/097178
Other languages
French (fr)
Chinese (zh)
Inventor
李书佳
崔吉林
黄罡
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202211449503.8A external-priority patent/CN115654671B/en
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 WO2024103687A1 publication Critical patent/WO2024103687A1/en

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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
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of air conditioners, and in particular to a control method and a control device of an air conditioner, and an air conditioner.
  • the lubricating oil is discharged from the compressor along with the refrigerant, and then returns to the compressor after circulation. Where there is refrigerant in and out, there is lubricating oil in and out.
  • the lubricating oil is likely to be stored in a certain component or a certain structural point, resulting in the lubricating oil being unable to flow back to the compressor smoothly, causing the compressor to be short of oil. If the lack of oil is not resolved for a long time, it will lead to insufficient lubrication of the moving parts inside the compressor, dry burning and other faults, greatly accelerating the damage of the compressor. No effective solution has been proposed so far.
  • the present application aims to solve at least one of the technical problems existing in the related art.
  • the present application proposes a control method for an air conditioner, which can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small, which can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
  • the embodiment of the present application also provides a control device for an air conditioner.
  • the embodiment of the present application also provides an air conditioner.
  • a method for controlling an air conditioner comprising:
  • the oil return mode of the compressor is determined according to the heat exchange mode and the ambient temperature.
  • the oil mode includes at least a rapid oil return mode and a normal oil return mode, and the oil return efficiency of the rapid oil return mode is higher than that of the normal oil return mode.
  • the step of determining the oil return mode of the compressor according to the heat exchange mode and the ambient temperature includes:
  • the operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the heat exchange mode and the ambient temperature.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature specifically includes:
  • the operating frequency is adjusted to a first frequency, the oil return time is adjusted to a first duration, and the frequency increase speed is adjusted to a first speed;
  • the first frequency is higher than the second frequency
  • the first duration is shorter than the second duration
  • the first speed is higher than the second speed
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature includes:
  • the operating frequency is adjusted to a third frequency, the oil return time is adjusted to a third duration, and the frequency increase speed is adjusted to a third speed;
  • the third frequency is equal to the first frequency
  • the third duration is equal to the first duration
  • the third speed is lower than the first speed
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
  • the operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the air outlet temperature and the outdoor ambient temperature.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
  • the fourth frequency is higher than the first frequency
  • the fourth duration is greater than the first duration
  • the fourth speed is lower than the first speed
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
  • the fourth frequency is lower than the fifth frequency
  • the fourth duration is greater than the fifth duration
  • the fourth speed is lower than the fifth speed.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
  • the operating frequency is adjusted to the outer ring temperature limit frequency.
  • a control device for an air conditioner comprising:
  • An acquisition module is used to acquire the heat exchange mode and ambient temperature of the air conditioner
  • a control module is used to determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, wherein the oil return mode includes at least a fast oil return mode and a conventional oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode.
  • the air conditioner executes the control method of the air conditioner provided in the first aspect embodiment of the present application when the air conditioner is running, or includes the control device of the air conditioner provided in the second aspect embodiment of the present application.
  • the control method of the air conditioner provided by the embodiment includes the following steps: The heat exchange mode and ambient temperature of the air conditioner are obtained; the oil return mode of the compressor is determined according to the heat exchange mode and the ambient temperature, and the oil return mode includes at least a fast oil return mode and a conventional oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode.
  • the air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, and operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small, which can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
  • FIG1 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present application.
  • FIG2 is a second flow chart of the air conditioner control method provided in the embodiment of the present application.
  • FIG. 3 is a schematic diagram of a control device for an air conditioner provided in an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium.
  • a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • a first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
  • the lubricating oil is likely to be stored in a certain component or a certain structural point, resulting in the lubricating oil being unable to flow back to the compressor smoothly, causing the compressor to be short of oil. If the oil shortage is not resolved for a long time, it will lead to insufficient lubrication of the internal moving parts of the compressor, dry burning and other faults, greatly accelerating the damage of the compressor. At present, there is no effective solution.
  • the heat exchange mode of the air conditioner includes cooling mode and heating mode.
  • the operating frequency of the compressor and the oil return time are set differently, and insufficient oil return may occur.
  • the ambient temperature has a greater impact on the oil return of the compressor.
  • the liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and refrigerant are divided into two layers.
  • the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole, which causes a large amount of lubricating oil to accumulate in the gas-liquid separator and cause the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, the influence of ambient temperature and heat exchange mode should be comprehensively considered.
  • the air conditioner can determine the oil return demand of the compressor according to the heat exchange mode and the ambient temperature, and operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
  • the ambient temperature includes the outdoor ambient temperature and the indoor unit outlet air temperature, etc.
  • the influence of one or more of these factors on the oil return mode can be considered to adjust the oil return mode of the compressor.
  • the influence of the ambient temperature is different in different heat exchange modes.
  • the step of determining the oil return mode of the compressor according to the heat exchange mode and the ambient temperature includes:
  • the oil return mode of the compressor is related to the operating frequency, oil return time and frequency increase speed of the compressor.
  • the oil return efficiency is changed by controlling the operating frequency, the higher the operating frequency of the compressor, the greater the refrigerant flow rate passing through the compressor per unit time, and the speed and density of the refrigerant flowing in the refrigerant pipeline are increased, so the speed of lubricating oil return will naturally increase.
  • the oil return of the compressor is related to the oil return time. When the operating frequency of the compressor is increased too high, a certain oil return time needs to be guaranteed to avoid serious oil shortage in the compressor.
  • the oil return of the compressor is related to the frequency increase speed.
  • the compressor is adjusted from the current operating frequency to the target operating frequency. The faster the frequency increase speed, the more efficient and timely the oil return mode adjustment of the compressor.
  • step S210 the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature specifically includes the following steps.
  • the first frequency is higher than the second frequency
  • the first duration is shorter than the second duration
  • the first speed is higher than the second speed
  • the compressor's oil return demand is relatively large and it is necessary to run the fast oil return mode.
  • the operating frequency of the compressor is adjusted to the first frequency, for example, 68Hz, which is higher than the frequency of the conventional oil return mode, and the oil return rate is increased; the oil return time is adjusted to 30s to avoid the situation where the compressor is seriously short of oil, and at the same time, it also prevents the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase speed is adjusted to the first speed, for example, 3Hz/s, which improves the efficiency of the compressor oil return mode adjustment.
  • the compressor's oil return demand is small and the normal oil return mode needs to be operated.
  • the compressor's operating frequency is adjusted to the second frequency, for example, 58Hz, to meet the compressor's oil return demand;
  • the oil return time is adjusted to 60s to avoid a serious oil shortage in the compressor, and to prevent the compressor from increasing the risk of liquid hammer due to a long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase
  • the speed is adjusted to the second speed, for example 1 Hz/s, to ensure that the compressor oil return mode is switched in time.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature includes:
  • the third frequency is equal to the first frequency
  • the third duration is equal to the first duration
  • the third speed is lower than the first speed
  • the compressor's oil return demand is large and the fast oil return mode needs to be operated.
  • the operating frequency of the compressor is adjusted to the third frequency, for example, 68Hz, which is higher than the frequency of the conventional oil return mode, and the oil return rate is increased;
  • the oil return time is adjusted to 30s to avoid severe oil shortage in the compressor, and at the same time, it also prevents the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return;
  • the frequency increase speed is adjusted to the third speed, for example, 2Hz/s, which improves the timeliness of the adjustment of the compressor oil return mode.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
  • the oil return of the compressor is not only affected by the outdoor ambient temperature, but also by the air outlet temperature of the indoor unit.
  • the influence of the air outlet temperature and the outdoor ambient temperature on the oil return of the compressor should be comprehensively considered, and then the operating frequency, oil return time and frequency increase speed of the compressor should be adjusted.
  • the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
  • S2241 Determine that the outdoor ambient temperature is less than or equal to the second temperature threshold and the air outlet temperature is less than If the temperature is equal to the third temperature threshold, the operating frequency is adjusted to the fourth frequency, the oil return time is adjusted to the fourth duration, and the frequency increase speed is adjusted to the fourth speed;
  • the fourth frequency is higher than the first frequency
  • the fourth duration is greater than the first duration
  • the fourth speed is lower than the first speed
  • the outdoor ambient temperature is less than or equal to the second temperature threshold, for example, less than or equal to -5 degrees Celsius
  • the oil return demand of the compressor is relatively small and it is necessary to run the conventional oil return mode.
  • the outdoor ambient temperature is less than or equal to the second temperature threshold
  • the influence of the indoor unit outlet air temperature must also be considered when the air conditioner is running.
  • the indoor unit outlet air temperature is less than or equal to the third temperature threshold, for example, less than or equal to 35 degrees Celsius, and the compressor can run the conventional oil return mode.
  • the operating frequency of the compressor is adjusted to the fourth frequency, such as 88Hz, to meet the oil return demand of the compressor;
  • the oil return time is adjusted to 60s to avoid severe oil shortage in the compressor, and also to prevent the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return;
  • the frequency increase speed is adjusted to the fourth speed, such as 1Hz/s, to ensure that the compressor oil return mode is switched in time.
  • the steps of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically include:
  • the fourth frequency is lower than the fifth frequency
  • the fourth duration is greater than the fifth duration
  • the fourth speed is lower than the fifth speed.
  • the outdoor ambient temperature is less than or equal to the second temperature threshold, for example, less than or equal to -5 degrees Celsius
  • the oil return demand of the compressor is relatively small and it is necessary to run the conventional oil return mode.
  • the air conditioner is running, the influence of the indoor unit air outlet temperature must also be considered. If the indoor unit air outlet temperature is greater than the third temperature threshold, for example, greater than 35 degrees Celsius, the compressor needs to run the fast oil return mode.
  • the operating frequency of the compressor is adjusted to the fifth frequency, such as 98Hz, to meet the oil return demand of the compressor; the oil return time is adjusted to 30s to avoid severe oil shortage in the compressor, and also to prevent the risk of compressor liquid hammer due to long oil return time, thereby improving the operating stability of the air conditioner and ensuring high Efficient and high-quality oil return; adjust the frequency increase speed to the fifth speed, such as 2Hz/s, to ensure that the compressor oil return mode is switched in time.
  • the fifth frequency such as 98Hz
  • the operating frequency of the compressor can be adjusted according to the heat exchange mode and the ambient temperature.
  • the outer ring temperature limit frequency is given priority when adjusting the operating frequency.
  • step S210 that is, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature, the following steps are further included:
  • the above steps can ensure that the outer ring temperature limit frequency is given priority when adjusting the operating frequency of the compressor. On the one hand, it can ensure that the compressor operating frequency can meet the oil return demand as much as possible. On the other hand, it also fully considers the environmental factors that the compressor itself is subject to, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return.
  • a control device for an air conditioner is provided in an embodiment, as shown in FIG3 , and includes the following modules.
  • the acquisition module 300 is used to acquire the heat exchange mode and the ambient temperature of the air conditioner.
  • the control module 301 is used to determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature.
  • the oil return mode includes at least a fast oil return mode and a normal oil return mode.
  • the oil return efficiency of the fast oil return mode is higher than that of the normal oil return mode.
  • control device signal/electrical connection of the air conditioner is connected to different working modules in the air conditioner to adjust the operating mode of the air conditioner.
  • the operating frequency of the compressor and the oil return time are set differently, and insufficient oil return may occur.
  • the ambient temperature has a greater impact on the oil return of the compressor.
  • the liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and the refrigerant are divided into two layers.
  • the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole, which causes a large amount of lubricating oil to accumulate in the gas-liquid separator and cause the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, it is necessary to comprehensively consider the following aspects. The influence of ambient temperature and heat exchange mode should be taken into consideration.
  • the air conditioner can determine the oil return demand of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
  • the ambient temperature includes the outdoor ambient temperature and the indoor unit outlet air temperature, etc.
  • the influence of one or more of these factors on the oil return mode can be considered to adjust the oil return mode of the compressor.
  • the influence of the ambient temperature is different in different heat exchange modes.
  • the air conditioner executes the control method of the air conditioner provided in the first aspect embodiment of the present application when the air conditioner is running, or includes the control device of the air conditioner provided in the second aspect embodiment of the present application.
  • the operating frequency of the compressor and the oil return time are set differently under different heat exchange modes of the air conditioner, and insufficient oil return may occur.
  • the ambient temperature has a greater impact on the oil return of the compressor.
  • the liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and refrigerant are divided into two layers.
  • the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole. This causes a large amount of lubricating oil to accumulate in the gas-liquid separator, causing the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, the influence of ambient temperature and heat exchange mode should be comprehensively considered.
  • the air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
  • the control method of the air conditioner includes the following steps: obtaining the heat exchange mode and ambient temperature of the air conditioner; determining the oil return mode of the compressor according to the heat exchange mode and ambient temperature, the oil return mode at least including the fast oil return mode and the conventional oil return mode, the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode; The oil return efficiency of the regular oil return mode.
  • the air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature. When the oil return demand of the compressor is large, it runs the fast oil return mode, and when the oil return demand of the compressor is small, it runs the regular oil return mode. It can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.

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

The present application relates to the technical field of air conditioners. Provided are a control method and control apparatus of an air conditioner, and an air conditioner. The control method of an air conditioner comprises the following steps: acquiring a heat exchange mode of an air conditioner and an ambient temperature; and according to the heat exchange mode and the ambient temperature, determining an oil return mode of a compressor, the term "oil return mode" at least comprising a rapid oil return mode and a conventional oil return mode, and the oil return efficiency of the rapid oil return mode being higher than the oil return efficiency of the conventional oil return mode. The air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, and thus starts the rapid oil return mode when the oil return requirement of the compressor is large, and starts the conventional oil return mode when the oil return requirement of the compressor is small, thus meeting the oil return requirements of the compressor in different working modes and environmental conditions, avoiding dry-burning of the compressor, reducing the noise of the compressor, and prolonging the service life of the compressor.

Description

空调器的控制方法、控制装置及空调器Air conditioner control method, control device and air conditioner
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求于2022年11月18日提交的申请号为2022114495038，名称为“空调器的控制方法、控制装置及空调器”的中国专利申请的优先权，其通过引用方式全部并入本文。This application claims priority to Chinese patent application No. 2022114495038, filed on November 18, 2022, and entitled “Control method, control device and air conditioner for air conditioner”, which is incorporated herein by reference in its entirety.
技术领域Technical Field
本申请涉及空调器技术领域，特别是涉及一种空调器的控制方法、控制装置及空调器。The present application relates to the technical field of air conditioners, and in particular to a control method and a control device of an air conditioner, and an air conditioner.
背景技术Background technique
在空调器的运行过程中，润滑油随着冷媒一起排出压缩机，经过循环又回到压缩机。有冷媒出入的地方就有润滑油的出入。在相关技术中，在诸多因素的影响下，润滑油很可能在某个零部件或某个结构点储存，导致润滑油无法顺利回流到压缩机，造成压缩机缺油。如果缺油长时间得不到解决，会导致压缩机内部运动零件润滑不足，出现干烧等故障，大大加速压缩机的损坏。目前尚未提出有效的解决方案。During the operation of the air conditioner, the lubricating oil is discharged from the compressor along with the refrigerant, and then returns to the compressor after circulation. Where there is refrigerant in and out, there is lubricating oil in and out. In the related art, under the influence of many factors, the lubricating oil is likely to be stored in a certain component or a certain structural point, resulting in the lubricating oil being unable to flow back to the compressor smoothly, causing the compressor to be short of oil. If the lack of oil is not resolved for a long time, it will lead to insufficient lubrication of the moving parts inside the compressor, dry burning and other faults, greatly accelerating the damage of the compressor. No effective solution has been proposed so far.
发明内容Summary of the invention
本申请旨在至少解决相关技术中存在的技术问题之一。为此，本申请提出一种空调器的控制方法，空调器可以根据换热模式以及环境温度确定压缩机的回油模式，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a control method for an air conditioner, which can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small, which can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
本申请实施例还提供了一种空调器的控制装置。The embodiment of the present application also provides a control device for an air conditioner.
本申请实施例还提供了一种空调器。The embodiment of the present application also provides an air conditioner.
根据本申请第一方面实施例提供的空调器的控制方法，包括：According to the first aspect of the present application, a method for controlling an air conditioner is provided, comprising:
获取空调器的换热模式以及环境温度；Get the heat exchange mode and ambient temperature of the air conditioner;
根据所述换热模式以及所述环境温度确定压缩机的回油模式，所述回 油模式至少包括快速回油模式和常规回油模式，所述快速回油模式的回油效率高于所述常规回油模式的回油效率。The oil return mode of the compressor is determined according to the heat exchange mode and the ambient temperature. The oil mode includes at least a rapid oil return mode and a normal oil return mode, and the oil return efficiency of the rapid oil return mode is higher than that of the normal oil return mode.
根据本申请的一个实施例，所述根据所述换热模式以及所述环境温度确定压缩机的回油模式的步骤，包括：According to one embodiment of the present application, the step of determining the oil return mode of the compressor according to the heat exchange mode and the ambient temperature includes:
根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度。The operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the heat exchange mode and the ambient temperature.
根据本申请的一个实施例，确定所述换热模式为制冷模式，则所述根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to an embodiment of the present application, when it is determined that the heat exchange mode is a cooling mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature specifically includes:
获取室外环境温度；Get the outdoor ambient temperature;
确定所述室外环境温度大于第一温度阈值，则调整所述运行频率至第一频率，所述回油时间至第一时长，所述升频速度至第一速度；If it is determined that the outdoor ambient temperature is greater than a first temperature threshold, the operating frequency is adjusted to a first frequency, the oil return time is adjusted to a first duration, and the frequency increase speed is adjusted to a first speed;
确定所述室外环境温度小于等于所述第一温度阈值，则调整所述运行频率至第二频率，所述回油时间至第二时长，所述升频速度至第二速度；Determining that the outdoor ambient temperature is less than or equal to the first temperature threshold, adjusting the operating frequency to a second frequency, the oil return time to a second duration, and the frequency increase speed to a second speed;
其中，所述第一频率高于所述第二频率，所述第一时长小于所述第二时长，所述第一速度高于所述第二速度。The first frequency is higher than the second frequency, the first duration is shorter than the second duration, and the first speed is higher than the second speed.
根据本申请的一个实施例，确定所述换热模式为制热模式，则根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，包括：According to an embodiment of the present application, when the heat exchange mode is determined to be a heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature includes:
获取室外环境温度；Get the outdoor ambient temperature;
确定所述室外环境温度大于第二温度阈值，则调整所述运行频率至第三频率，所述回油时间至第三时长，所述升频速度至第三速度；If it is determined that the outdoor ambient temperature is greater than a second temperature threshold, the operating frequency is adjusted to a third frequency, the oil return time is adjusted to a third duration, and the frequency increase speed is adjusted to a third speed;
其中，所述第三频率等于所述第一频率，所述第三时长等于所述第一时长，所述第三速度低于所述第一速度。The third frequency is equal to the first frequency, the third duration is equal to the first duration, and the third speed is lower than the first speed.
根据本申请的一个实施例，确定所述换热模式为制热模式，则根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，还包括：According to an embodiment of the present application, when the heat exchange mode is determined to be a heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
获取室内机的出风温度；Get the air outlet temperature of the indoor unit;
根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度。 The operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the air outlet temperature and the outdoor ambient temperature.
根据本申请的一个实施例，所述根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to an embodiment of the present application, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
确定所述室外环境温度小于等于所述第二温度阈值，且所述出风温度小于等于第三温度阈值，则调整所述运行频率至第四频率，所述回油时间至第四时长，所述升频速度至第四速度；Determining that the outdoor ambient temperature is less than or equal to the second temperature threshold, and the air outlet temperature is less than or equal to the third temperature threshold, adjusting the operating frequency to a fourth frequency, the oil return time to a fourth duration, and the frequency increase speed to a fourth speed;
其中，所述第四频率高于所述第一频率，所述第四时长大于所述第一时长，所述第四速度低于所述第一速度。Among them, the fourth frequency is higher than the first frequency, the fourth duration is greater than the first duration, and the fourth speed is lower than the first speed.
根据本申请的一个实施例，确定所述换热模式为制热模式，则所述根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to an embodiment of the present application, when it is determined that the heat exchange mode is a heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
确定所述室外环境温度小于等于所述第二温度阈值，且所述出风温度大于所述第三温度阈值，则调整所述运行频率至第五频率，所述回油时间至第五时长，所述升频速度至第五速度；Determining that the outdoor ambient temperature is less than or equal to the second temperature threshold, and the air outlet temperature is greater than the third temperature threshold, adjusting the operating frequency to a fifth frequency, the oil return time to a fifth duration, and the frequency increase speed to a fifth speed;
其中，所述第四频率低于所述第五频率，所述第四时长大于所述第五时长，所述第四速度低于所述第五速度。Among them, the fourth frequency is lower than the fifth frequency, the fourth duration is greater than the fifth duration, and the fourth speed is lower than the fifth speed.
根据本申请的一个实施例，所述根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，之后还包括：According to an embodiment of the present application, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
根据所述室外环境温度确定压缩机的外环温限频频率；Determine the outer ring temperature limit frequency of the compressor according to the outdoor ambient temperature;
确定所述运行频率高于所述外环温限频频率，则将所述运行频率调整至所述外环温限频频率。If it is determined that the operating frequency is higher than the outer ring temperature limit frequency, the operating frequency is adjusted to the outer ring temperature limit frequency.
根据本申请第二方面实施例提供的空调器的控制装置，包括：According to the second aspect of the present application, a control device for an air conditioner is provided, comprising:
获取模块，用于获取空调器的换热模式以及环境温度；An acquisition module is used to acquire the heat exchange mode and ambient temperature of the air conditioner;
控制模块，用于根据所述换热模式以及所述环境温度确定压缩机的回油模式，所述回油模式至少包括快速回油模式和常规回油模式，所述快速回油模式的回油效率高于所述常规回油模式的回油效率。A control module is used to determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, wherein the oil return mode includes at least a fast oil return mode and a conventional oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode.
根据本申请第三方面实施例提供的空调器，所述空调器运行时执行根据本申请第一方面实施例提供的空调器的控制方法，或者包括根据本申请第二方面实施例提供的空调器的控制装置。According to the air conditioner provided in the third aspect embodiment of the present application, the air conditioner executes the control method of the air conditioner provided in the first aspect embodiment of the present application when the air conditioner is running, or includes the control device of the air conditioner provided in the second aspect embodiment of the present application.
本申请中的上述一个或多个技术方案，至少具有如下技术效果之一：The above one or more technical solutions in this application have at least one of the following technical effects:
根据本申请第一方面实施例提供的空调器的控制方法，包括以下步骤： 获取空调器的换热模式以及环境温度；根据换热模式以及环境温度确定压缩机的回油模式，回油模式至少包括快速回油模式和常规回油模式，快速回油模式的回油效率高于常规回油模式的回油效率。空调器可以根据换热模式以及环境温度确定压缩机的回油模式，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。According to the first aspect of the present application, the control method of the air conditioner provided by the embodiment includes the following steps: The heat exchange mode and ambient temperature of the air conditioner are obtained; the oil return mode of the compressor is determined according to the heat exchange mode and the ambient temperature, and the oil return mode includes at least a fast oil return mode and a conventional oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode. The air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, and operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small, which can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本申请实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
图1为本申请实施例提供的空调器的控制方法的流程图之一；FIG1 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present application;
图2为本申请实施例提供的空调器的控制方法的流程图之二；FIG2 is a second flow chart of the air conditioner control method provided in the embodiment of the present application;
图3为本申请实施例提供的空调器的控制装置的示意图。FIG. 3 is a schematic diagram of a control device for an air conditioner provided in an embodiment of the present application.
附图标记：300、获取模块；301、控制模块。Reference numerals: 300, acquisition module; 301, control module.
具体实施方式Detailed ways
为使发明的目的、技术方案和优点更加清楚，下面将结合发明中的附图，对发明中的技术方案进行清楚地描述，显然，所描述的实施例是发明一部分实施例，而不是全部的实施例。基于发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于发明保护的范围。In order to make the purpose, technical solution and advantages of the invention clearer, the technical solution in the invention will be clearly described below in conjunction with the drawings in the invention. Obviously, the described embodiments are part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.
在本申请实施例的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申 请实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as restricting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请实施例中的具体含义。In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
在本申请实施例中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请实施例的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
在相关技术中，在诸多因素的影响下，润滑油很可能在某个零部件或某个结构点储存，导致润滑油无法顺利回流到压缩机，造成压缩机缺油，如果缺油长时间得不到解决，会导致压缩机内部运动零件润滑不足，出现干烧等故障，大大加速压缩机的损坏，目前尚未出现有效的解决方案。In related technologies, under the influence of many factors, the lubricating oil is likely to be stored in a certain component or a certain structural point, resulting in the lubricating oil being unable to flow back to the compressor smoothly, causing the compressor to be short of oil. If the oil shortage is not resolved for a long time, it will lead to insufficient lubrication of the internal moving parts of the compressor, dry burning and other faults, greatly accelerating the damage of the compressor. At present, there is no effective solution.
根据本申请第一方面实施例提供的空调器的控制方法，请参阅图1 至图2，包括以下步骤。According to the control method of the air conditioner provided in the first embodiment of the present application, please refer to FIG. To Figure 2, the following steps are included.
S100、获取空调器的换热模式以及环境温度。S100: Obtain a heat exchange mode and an ambient temperature of the air conditioner.
S200、根据换热模式以及环境温度确定压缩机的回油模式，回油模式至少包括快速回油模式和常规回油模式，快速回油模式的回油效率高于常规回油模式的回油效率。S200, determining an oil return mode of the compressor according to a heat exchange mode and an ambient temperature, wherein the oil return mode includes at least a fast oil return mode and a conventional oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode.
可以理解的是，空调器的换热模式包括制冷模式和制热模式等，在不同的换热模式下，压缩机的运行频率以及回油时长等设定不同，可能会出现回油不足的情况。与此同时，环境温度对于压缩机回油的影响较大，气液分离器中的液体是制冷剂和润滑油的混合物，当温度较高时，两者互溶，润滑油和液态制冷剂从回油孔进入制冷压缩机。当温度到了某一临界值，润滑油和制冷剂分为两层。由于润滑油较轻，上层是润滑油，下层是制冷剂，所以从回油孔回到制冷压缩机的只有液态制冷剂，这样使得大量润滑油积存在气液分离器中而造成压缩机缺油。因此在评估压缩机的回油需求时，要综合考虑到环境温度和换热模式的影响。It is understandable that the heat exchange mode of the air conditioner includes cooling mode and heating mode. In different heat exchange modes, the operating frequency of the compressor and the oil return time are set differently, and insufficient oil return may occur. At the same time, the ambient temperature has a greater impact on the oil return of the compressor. The liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and refrigerant are divided into two layers. Since the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole, which causes a large amount of lubricating oil to accumulate in the gas-liquid separator and cause the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, the influence of ambient temperature and heat exchange mode should be comprehensively considered.
根据本申请实施例提供的空调器的控制方法，空调器可以根据换热模式以及环境温度确定压缩机的回油需求，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。According to the control method of the air conditioner provided in the embodiment of the present application, the air conditioner can determine the oil return demand of the compressor according to the heat exchange mode and the ambient temperature, and operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
需要说明的是，环境温度包括室外环境温度以及室内机出风温度等，可以考虑其中一个或者多个因素对于回油模式的影响，进而调整压缩机的回油模式。而且，在不同的换热模式下，环境温度的影响不同。It should be noted that the ambient temperature includes the outdoor ambient temperature and the indoor unit outlet air temperature, etc. The influence of one or more of these factors on the oil return mode can be considered to adjust the oil return mode of the compressor. Moreover, the influence of the ambient temperature is different in different heat exchange modes.
根据本申请的一个实施例，根据换热模式以及环境温度确定压缩机的回油模式的步骤，包括：According to one embodiment of the present application, the step of determining the oil return mode of the compressor according to the heat exchange mode and the ambient temperature includes:
S210、根据换热模式以及环境温度调整压缩机的运行频率、回油时间以及升频速度。S210, adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature.
可以理解的是，压缩机的回油模式与压缩机的运行频率、回油时间以及升频速度有关。通过控制运行频率来改变回油效率时，压缩机的运行频率越高，在单位时间内经过压缩机的制冷剂流量越大，制冷剂在冷媒管道内流动时的速度、密度都有提高，那么润滑油回油的速度自然就 会加快。压缩机回油与回油时间相关，当压缩机的运行频率提升过高时，需要保证一定的回油时间，避免出现压缩机严重缺油的情况；同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高效高质量的回油。压缩机回油与升频速度有关，将压缩机从现有运行频率调整至目标运行频率，升频速度越快，压缩机的回油模式调整越高效、及时。It is understandable that the oil return mode of the compressor is related to the operating frequency, oil return time and frequency increase speed of the compressor. When the oil return efficiency is changed by controlling the operating frequency, the higher the operating frequency of the compressor, the greater the refrigerant flow rate passing through the compressor per unit time, and the speed and density of the refrigerant flowing in the refrigerant pipeline are increased, so the speed of lubricating oil return will naturally increase. The oil return of the compressor is related to the oil return time. When the operating frequency of the compressor is increased too high, a certain oil return time needs to be guaranteed to avoid serious oil shortage in the compressor. At the same time, it also prevents the risk of compressor liquid hammer due to a long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return. The oil return of the compressor is related to the frequency increase speed. The compressor is adjusted from the current operating frequency to the target operating frequency. The faster the frequency increase speed, the more efficient and timely the oil return mode adjustment of the compressor.
根据本申请的一个实施例，确定换热模式为制冷模式，则步骤S210中，根据换热模式以及环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括下述步骤。According to an embodiment of the present application, if the heat exchange mode is determined to be the cooling mode, then in step S210, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature specifically includes the following steps.
S211、获取室外环境温度。S211. Obtain outdoor ambient temperature.
S212、确定室外环境温度大于第一温度阈值，则调整运行频率至第一频率，回油时间至第一时长，升频速度至第一速度。S212: If it is determined that the outdoor ambient temperature is greater than a first temperature threshold, the operating frequency is adjusted to a first frequency, the oil return time is adjusted to a first duration, and the frequency increase speed is adjusted to a first speed.
S213、确定室外环境温度小于等于第一温度阈值，则调整运行频率至第二频率，回油时间至第二时长，升频速度至第二速度。S213: If it is determined that the outdoor ambient temperature is less than or equal to the first temperature threshold, the operating frequency is adjusted to the second frequency, the oil return time is adjusted to the second duration, and the frequency increase speed is adjusted to the second speed.
其中，第一频率高于第二频率，第一时长小于第二时长，第一速度高于第二速度。Among them, the first frequency is higher than the second frequency, the first duration is shorter than the second duration, and the first speed is higher than the second speed.
可以理解的是，在制冷模式下，如果室外环境温度大于第一温度阈值，例如大于18摄氏度，那么此时压缩机的回油需求较大，需要运行快速回油模式。在快速回油模式下，将压缩机的运行频率调整至第一频率，例如68Hz，相较于常规回油模式的频率较高，提升了回油的速率；将回油时间调整至30s，避免出现压缩机严重缺油的情况，同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高效高质量的回油；将升频速度调整至第一速度，例如3Hz/s，提升了压缩机回油模式调整的效率。It is understandable that in cooling mode, if the outdoor ambient temperature is greater than the first temperature threshold, for example, greater than 18 degrees Celsius, then the compressor's oil return demand is relatively large and it is necessary to run the fast oil return mode. In the fast oil return mode, the operating frequency of the compressor is adjusted to the first frequency, for example, 68Hz, which is higher than the frequency of the conventional oil return mode, and the oil return rate is increased; the oil return time is adjusted to 30s to avoid the situation where the compressor is seriously short of oil, and at the same time, it also prevents the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase speed is adjusted to the first speed, for example, 3Hz/s, which improves the efficiency of the compressor oil return mode adjustment.
在制冷模式下，如果室外环境温度小于等于第一温度阈值，例如小于等于18摄氏度，那么此时压缩机的回油需求较小，需要运行常规回油模式。在常规回油模式下，将压缩机的运行频率调整至第二频率，例如58Hz，可以满足压缩机的回油需求；将回油时间调整至60s，避免出现压缩机严重缺油的情况，同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高效高质量的回油；将升频 速度调整至第二速度，例如1Hz/s，确保压缩机回油模式及时切换。In cooling mode, if the outdoor ambient temperature is less than or equal to the first temperature threshold, for example, less than or equal to 18 degrees Celsius, then the compressor's oil return demand is small and the normal oil return mode needs to be operated. In normal oil return mode, the compressor's operating frequency is adjusted to the second frequency, for example, 58Hz, to meet the compressor's oil return demand; the oil return time is adjusted to 60s to avoid a serious oil shortage in the compressor, and to prevent the compressor from increasing the risk of liquid hammer due to a long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase The speed is adjusted to the second speed, for example 1 Hz/s, to ensure that the compressor oil return mode is switched in time.
根据本申请的一个实施例，确定换热模式为制热模式，则根据换热模式以及环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，包括：According to an embodiment of the present application, when the heat exchange mode is determined to be the heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature includes:
S221、获取室外环境温度；S221, obtaining the outdoor ambient temperature;
S222、确定室外环境温度大于第二温度阈值，则调整运行频率至第三频率，回油时间至第三时长，升频速度至第三速度；S222: if it is determined that the outdoor ambient temperature is greater than the second temperature threshold, the operating frequency is adjusted to a third frequency, the oil return time is adjusted to a third duration, and the frequency increase speed is adjusted to a third speed;
其中，第三频率等于第一频率，第三时长等于第一时长，第三速度低于第一速度。The third frequency is equal to the first frequency, the third duration is equal to the first duration, and the third speed is lower than the first speed.
可以理解的是，在制热模式下，如果室外环境温度大于第二温度阈值，例如大于-5摄氏度，那么此时压缩机的回油需求较大，需要运行快速回油模式。在快速回油模式下，将压缩机的运行频率调整至第三频率，例如68Hz，相较于常规回油模式的频率较高，提升了回油的速率；将回油时间调整至30s，避免出现压缩机严重缺油的情况，同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高效高质量的回油；将升频速度调整至第三速度，例如2Hz/s，提升了压缩机回油模式调整的及时性。It is understandable that in heating mode, if the outdoor ambient temperature is greater than the second temperature threshold, for example, greater than -5 degrees Celsius, then the compressor's oil return demand is large and the fast oil return mode needs to be operated. In fast oil return mode, the operating frequency of the compressor is adjusted to the third frequency, for example, 68Hz, which is higher than the frequency of the conventional oil return mode, and the oil return rate is increased; the oil return time is adjusted to 30s to avoid severe oil shortage in the compressor, and at the same time, it also prevents the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase speed is adjusted to the third speed, for example, 2Hz/s, which improves the timeliness of the adjustment of the compressor oil return mode.
根据本申请的一个实施例，确定换热模式为制热模式，则根据换热模式以及环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，还包括：According to an embodiment of the present application, when the heat exchange mode is determined to be the heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further includes:
S223、获取室内机的出风温度。S223: Obtain the air outlet temperature of the indoor unit.
S224、根据出风温度和室外环境温度调整压缩机的运行频率、回油时间以及升频速度。S224, adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature.
可以理解的是，在制热模式下，压缩机的回油不仅受到室外环境温度的影响，还受到室内机的出风温度的影响。综合考虑出风温度和室外环境温度对压缩机回油的影响程度，然后再调整压缩机的运行频率、回油时间以及升频速度。It is understandable that in heating mode, the oil return of the compressor is not only affected by the outdoor ambient temperature, but also by the air outlet temperature of the indoor unit. The influence of the air outlet temperature and the outdoor ambient temperature on the oil return of the compressor should be comprehensively considered, and then the operating frequency, oil return time and frequency increase speed of the compressor should be adjusted.
根据本申请的一个实施例，根据出风温度和室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to one embodiment of the present application, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically includes:
S2241、确定室外环境温度小于等于第二温度阈值，且出风温度小于 等于第三温度阈值，则调整运行频率至第四频率，回油时间至第四时长，升频速度至第四速度；S2241: Determine that the outdoor ambient temperature is less than or equal to the second temperature threshold and the air outlet temperature is less than If the temperature is equal to the third temperature threshold, the operating frequency is adjusted to the fourth frequency, the oil return time is adjusted to the fourth duration, and the frequency increase speed is adjusted to the fourth speed;
其中，第四频率高于第一频率，第四时长大于第一时长，第四速度低于第一速度。Among them, the fourth frequency is higher than the first frequency, the fourth duration is greater than the first duration, and the fourth speed is lower than the first speed.
可以理解的是，在制热模式下，如果室外环境温度小于等于第二温度阈值，例如小于等于-5摄氏度，那么此时压缩机的回油需求较小，需要运行常规回油模式。然而，在室外环境温度小于等于第二温度阈值，空调器运行时还要考虑到室内机出风温度的影响，室内机的出风温度小于等于第三温度阈值，例如小于等于35摄氏度，压缩机运行常规回油模式即可。在常规回油模式下，将压缩机的运行频率调整至第四频率，例如88Hz，可以满足压缩机的回油需求；将回油时间调整至60s，避免出现压缩机严重缺油的情况，同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高效高质量的回油；将升频速度调整至第四速度，例如1Hz/s，确保压缩机回油模式及时切换。It is understandable that in heating mode, if the outdoor ambient temperature is less than or equal to the second temperature threshold, for example, less than or equal to -5 degrees Celsius, then the oil return demand of the compressor is relatively small and it is necessary to run the conventional oil return mode. However, when the outdoor ambient temperature is less than or equal to the second temperature threshold, the influence of the indoor unit outlet air temperature must also be considered when the air conditioner is running. The indoor unit outlet air temperature is less than or equal to the third temperature threshold, for example, less than or equal to 35 degrees Celsius, and the compressor can run the conventional oil return mode. In the conventional oil return mode, the operating frequency of the compressor is adjusted to the fourth frequency, such as 88Hz, to meet the oil return demand of the compressor; the oil return time is adjusted to 60s to avoid severe oil shortage in the compressor, and also to prevent the risk of compressor liquid hammer due to the long oil return time, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return; the frequency increase speed is adjusted to the fourth speed, such as 1Hz/s, to ensure that the compressor oil return mode is switched in time.
在一些实施例中，确定换热模式为制热模式，则根据出风温度和室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：In some embodiments, when the heat exchange mode is determined to be the heating mode, the steps of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically include:
S2242、确定室外环境温度小于等于第二温度阈值，且出风温度大于第三温度阈值，则调整运行频率至第五频率，回油时间至第五时长，升频速度至第五速度；S2242: if it is determined that the outdoor ambient temperature is less than or equal to the second temperature threshold and the air outlet temperature is greater than the third temperature threshold, the operating frequency is adjusted to the fifth frequency, the oil return time is adjusted to the fifth duration, and the frequency increase speed is adjusted to the fifth speed;
其中，第四频率低于第五频率，第四时长大于第五时长，第四速度低于第五速度。Among them, the fourth frequency is lower than the fifth frequency, the fourth duration is greater than the fifth duration, and the fourth speed is lower than the fifth speed.
可以理解的是，在制热模式下，如果室外环境温度小于等于第二温度阈值，例如小于等于-5摄氏度，那么此时压缩机的回油需求较小，需要运行常规回油模式。然而，空调器运行时还要考虑到室内机出风温度的影响，室内机的出风温度大于第三温度阈值，例如大于35摄氏度，则压缩机需要运行快速回油模式。在快速回油模式下，将压缩机的运行频率调整至第五频率，例如98Hz，可以满足压缩机的回油需求；将回油时间调整至30s，避免出现压缩机严重缺油的情况，同时也防止由于回油时间较长而增大压缩机液击风险，从而提高空调器运行稳定性和保证高 效高质量的回油；将升频速度调整至第五速度，例如2Hz/s，确保压缩机回油模式及时切换。It is understandable that in heating mode, if the outdoor ambient temperature is less than or equal to the second temperature threshold, for example, less than or equal to -5 degrees Celsius, then the oil return demand of the compressor is relatively small and it is necessary to run the conventional oil return mode. However, when the air conditioner is running, the influence of the indoor unit air outlet temperature must also be considered. If the indoor unit air outlet temperature is greater than the third temperature threshold, for example, greater than 35 degrees Celsius, the compressor needs to run the fast oil return mode. In the fast oil return mode, the operating frequency of the compressor is adjusted to the fifth frequency, such as 98Hz, to meet the oil return demand of the compressor; the oil return time is adjusted to 30s to avoid severe oil shortage in the compressor, and also to prevent the risk of compressor liquid hammer due to long oil return time, thereby improving the operating stability of the air conditioner and ensuring high Efficient and high-quality oil return; adjust the frequency increase speed to the fifth speed, such as 2Hz/s, to ensure that the compressor oil return mode is switched in time.
在上述各个步骤中，可以根据换热模式以及环境温度调整压缩机的运行频率，在确保压缩机的运行频率能够满足回油需求时，也需要考虑到压缩机自身受到环境因素的限制，避免超出外环温限频频率，即在运行频率调整时优先考虑外环温限频频率。In each of the above steps, the operating frequency of the compressor can be adjusted according to the heat exchange mode and the ambient temperature. When ensuring that the operating frequency of the compressor can meet the oil return demand, it is also necessary to consider that the compressor itself is limited by environmental factors to avoid exceeding the outer ring temperature limit frequency, that is, the outer ring temperature limit frequency is given priority when adjusting the operating frequency.
因此在步骤S210之后，即根据换热模式以及环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，之后还包括：Therefore, after step S210, that is, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature, the following steps are further included:
S230、根据室外环境温度确定压缩机的外环温限频频率。S230. Determine the outer ring temperature limit frequency of the compressor according to the outdoor ambient temperature.
S231、确定运行频率高于外环温限频频率，则将运行频率调整至外环温限频频率。S231: If it is determined that the operating frequency is higher than the outer ring temperature limit frequency, the operating frequency is adjusted to the outer ring temperature limit frequency.
可以理解的是，通过以上步骤可以确保在调整压缩机的运行频率时优先考虑外环温限频频率，一方面尽可能保障压缩机运行频率能够满足回油需求，另一方面也充分考虑到压缩机自身受到的环境因素限制，从而提高空调器运行稳定性和保证高效高质量的回油。It can be understood that the above steps can ensure that the outer ring temperature limit frequency is given priority when adjusting the operating frequency of the compressor. On the one hand, it can ensure that the compressor operating frequency can meet the oil return demand as much as possible. On the other hand, it also fully considers the environmental factors that the compressor itself is subject to, thereby improving the operating stability of the air conditioner and ensuring efficient and high-quality oil return.
根据本申请第二方面实施例提供的空调器的控制装置，请参阅图3，包括下述模块。According to the second aspect of the present application, a control device for an air conditioner is provided in an embodiment, as shown in FIG3 , and includes the following modules.
获取模块300，用于获取空调器的换热模式以及环境温度。The acquisition module 300 is used to acquire the heat exchange mode and the ambient temperature of the air conditioner.
控制模块301，用于根据换热模式以及环境温度确定压缩机的回油模式，回油模式至少包括快速回油模式和常规回油模式，快速回油模式的回油效率高于常规回油模式的回油效率。The control module 301 is used to determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature. The oil return mode includes at least a fast oil return mode and a normal oil return mode. The oil return efficiency of the fast oil return mode is higher than that of the normal oil return mode.
可以理解的是，空调器的控制装置信号/电连接于空调器内的不同工作模块，用以调整空调器的运行模式。在不同的换热模式下，压缩机的运行频率以及回油时长等设定不同，可能会出现回油不足的情况。与此同时，环境温度对于压缩机回油的影响较大，气液分离器中的液体是制冷剂和润滑油的混合物，当温度较高时，两者互溶，润滑油和液态制冷剂从回油孔进入制冷压缩机。当温度到了某一临界值，润滑油和制冷剂分为两层。由于润滑油较轻，上层是润滑油，下层是制冷剂，所以从回油孔回到制冷压缩机的只有液态制冷剂，这样使得大量润滑油积存在气液分离器中而造成压缩机缺油。因此在评估压缩机的回油需求时，要综 合考虑到环境温度和换热模式的影响。It is understandable that the control device signal/electrical connection of the air conditioner is connected to different working modules in the air conditioner to adjust the operating mode of the air conditioner. Under different heat exchange modes, the operating frequency of the compressor and the oil return time are set differently, and insufficient oil return may occur. At the same time, the ambient temperature has a greater impact on the oil return of the compressor. The liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and the refrigerant are divided into two layers. Since the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole, which causes a large amount of lubricating oil to accumulate in the gas-liquid separator and cause the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, it is necessary to comprehensively consider the following aspects. The influence of ambient temperature and heat exchange mode should be taken into consideration.
根据本申请实施例提供的空调器的控制装置，空调器可以根据换热模式以及环境温度确定压缩机的回油需求，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。According to the control device of the air conditioner provided in the embodiment of the present application, the air conditioner can determine the oil return demand of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
需要说明的是，环境温度包括室外环境温度以及室内机出风温度等，可以考虑其中一个或者多个因素对于回油模式的影响，进而调整压缩机的回油模式。而且，在不同的换热模式下，环境温度的影响不同。It should be noted that the ambient temperature includes the outdoor ambient temperature and the indoor unit outlet air temperature, etc. The influence of one or more of these factors on the oil return mode can be considered to adjust the oil return mode of the compressor. Moreover, the influence of the ambient temperature is different in different heat exchange modes.
根据本申请第三方面实施例提供的空调器，空调器运行时执行根据本申请第一方面实施例提供的空调器的控制方法，或者包括根据本申请第二方面实施例提供的空调器的控制装置。According to the air conditioner provided in the third aspect embodiment of the present application, the air conditioner executes the control method of the air conditioner provided in the first aspect embodiment of the present application when the air conditioner is running, or includes the control device of the air conditioner provided in the second aspect embodiment of the present application.
可以理解的是，空调器在不同的换热模式下，压缩机的运行频率以及回油时长等设定不同，可能会出现回油不足的情况。与此同时，环境温度对于压缩机回油的影响较大，气液分离器中的液体是制冷剂和润滑油的混合物，当温度较高时，两者互溶，润滑油和液态制冷剂从回油孔进入制冷压缩机。当温度到了某一临界值，润滑油和制冷剂分为两层。由于润滑油较轻，上层是润滑油，下层是制冷剂，所以从回油孔回到制冷压缩机的只有液态制冷剂。这样使得大量润滑油积存在气液分离器中而造成压缩机缺油。因此在评估压缩机的回油需求时，要综合考虑到环境温度和换热模式的影响。It is understandable that the operating frequency of the compressor and the oil return time are set differently under different heat exchange modes of the air conditioner, and insufficient oil return may occur. At the same time, the ambient temperature has a greater impact on the oil return of the compressor. The liquid in the gas-liquid separator is a mixture of refrigerant and lubricating oil. When the temperature is high, the two are miscible, and the lubricating oil and liquid refrigerant enter the refrigeration compressor from the oil return hole. When the temperature reaches a certain critical value, the lubricating oil and refrigerant are divided into two layers. Since the lubricating oil is lighter, the upper layer is the lubricating oil and the lower layer is the refrigerant, so only the liquid refrigerant returns to the refrigeration compressor from the oil return hole. This causes a large amount of lubricating oil to accumulate in the gas-liquid separator, causing the compressor to lack oil. Therefore, when evaluating the oil return demand of the compressor, the influence of ambient temperature and heat exchange mode should be comprehensively considered.
根据本申请实施例提供的空调器的控制装置，空调器可以根据换热模式以及环境温度确定压缩机的回油模式，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。According to the control device of the air conditioner provided in the embodiment of the present application, the air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature, operate the fast oil return mode when the oil return demand of the compressor is large, and operate the conventional oil return mode when the oil return demand of the compressor is small. This can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
综上所述，根据本申请提供的空调器的控制方法、控制装置及空调器，空调器的控制方法包括以下步骤：获取空调器的换热模式以及环境温度；根据换热模式以及环境温度确定压缩机的回油模式，回油模式至少包括快速回油模式和常规回油模式，快速回油模式的回油效率高于常 规回油模式的回油效率。空调器可以根据换热模式以及环境温度确定压缩机的回油模式，在压缩机的回油需求较大时运行快速回油模式，在压缩机的回油需求较小时运行常规回油模式，能够满足压缩机在不同工作模式以及环境状况下的回油需求，避免压缩机出现干烧的情况，降低了压缩机的噪音，提高了压缩机的使用寿命。In summary, according to the control method, control device and air conditioner provided by the present application, the control method of the air conditioner includes the following steps: obtaining the heat exchange mode and ambient temperature of the air conditioner; determining the oil return mode of the compressor according to the heat exchange mode and ambient temperature, the oil return mode at least including the fast oil return mode and the conventional oil return mode, the oil return efficiency of the fast oil return mode is higher than that of the conventional oil return mode; The oil return efficiency of the regular oil return mode. The air conditioner can determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature. When the oil return demand of the compressor is large, it runs the fast oil return mode, and when the oil return demand of the compressor is small, it runs the regular oil return mode. It can meet the oil return demand of the compressor under different working modes and environmental conditions, avoid dry burning of the compressor, reduce the noise of the compressor, and increase the service life of the compressor.
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。 The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

  1. 一种空调器的控制方法，包括：A method for controlling an air conditioner, comprising:
    获取空调器的换热模式以及环境温度；Get the heat exchange mode and ambient temperature of the air conditioner;
    根据所述换热模式以及所述环境温度确定压缩机的回油模式，Determine the oil return mode of the compressor according to the heat exchange mode and the ambient temperature,
    其中，所述回油模式至少包括快速回油模式和常规回油模式，所述快速回油模式的回油效率高于所述常规回油模式的回油效率。The oil return mode includes at least a rapid oil return mode and a conventional oil return mode, and the oil return efficiency of the rapid oil return mode is higher than that of the conventional oil return mode.
  2. 根据权利要求1所述的空调器的控制方法，其中，所述根据所述换热模式以及所述环境温度确定压缩机的回油模式的步骤，包括：The control method of the air conditioner according to claim 1, wherein the step of determining the oil return mode of the compressor according to the heat exchange mode and the ambient temperature comprises:
    根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度。The operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the heat exchange mode and the ambient temperature.
  3. 根据权利要求2所述的空调器的控制方法，其中，确定所述换热模式为制冷模式，则所述根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to the control method of the air conditioner of claim 2, wherein the heat exchange mode is determined to be a cooling mode, and the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature specifically comprises:
    获取室外环境温度；Get the outdoor ambient temperature;
    确定所述室外环境温度大于第一温度阈值，则调整所述运行频率至第一频率，所述回油时间至第一时长，所述升频速度至第一速度；If it is determined that the outdoor ambient temperature is greater than a first temperature threshold, the operating frequency is adjusted to a first frequency, the oil return time is adjusted to a first duration, and the frequency increase speed is adjusted to a first speed;
    确定所述室外环境温度小于等于所述第一温度阈值，则调整所述运行频率至第二频率，所述回油时间至第二时长，所述升频速度至第二速度，If it is determined that the outdoor ambient temperature is less than or equal to the first temperature threshold, the operating frequency is adjusted to a second frequency, the oil return time is adjusted to a second duration, and the frequency increase speed is adjusted to a second speed.
    其中，所述第一频率高于所述第二频率，所述第一时长小于所述第二时长，所述第一速度高于所述第二速度。The first frequency is higher than the second frequency, the first duration is shorter than the second duration, and the first speed is higher than the second speed.
  4. 根据权利要求3所述的空调器的控制方法，其中，确定所述换热模式为制热模式，则所述根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，包括：According to the control method of the air conditioner of claim 3, wherein the heat exchange mode is determined to be a heating mode, and the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature comprises:
    获取室外环境温度；Get the outdoor ambient temperature;
    确定所述室外环境温度大于第二温度阈值，则调整所述运行频率至第三频率，所述回油时间至第三时长，所述升频速度至第三速度，If it is determined that the outdoor ambient temperature is greater than the second temperature threshold, the operating frequency is adjusted to a third frequency, the oil return time is adjusted to a third duration, and the frequency increase speed is adjusted to a third speed.
    其中，所述第三频率等于所述第一频率，所述第三时长等于所述第一时长，所述第三速度低于所述第一速度。The third frequency is equal to the first frequency, the third duration is equal to the first duration, and the third speed is lower than the first speed.
  5. 根据权利要求4所述的空调器的控制方法，其中，确定所述换热 模式为制热模式，则根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，还包括：The control method of the air conditioner according to claim 4, wherein the heat exchange The mode is a heating mode, and the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature also includes:
    获取室内机的出风温度；Get the air outlet temperature of the indoor unit;
    根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度。The operating frequency, oil return time and frequency increase speed of the compressor are adjusted according to the air outlet temperature and the outdoor ambient temperature.
  6. 根据权利要求5所述的空调器的控制方法，其中，所述根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to the control method of the air conditioner of claim 5, wherein the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the outlet air temperature and the outdoor ambient temperature specifically comprises:
    确定所述室外环境温度小于等于所述第二温度阈值，且所述出风温度小于等于第三温度阈值，则调整所述运行频率至第四频率，所述回油时间至第四时长，所述升频速度至第四速度，Determine that the outdoor ambient temperature is less than or equal to the second temperature threshold, and the air outlet temperature is less than or equal to the third temperature threshold, then adjust the operating frequency to a fourth frequency, the oil return time to a fourth duration, and the frequency increase speed to a fourth speed,
    其中，所述第四频率高于所述第一频率，所述第四时长大于所述第一时长，所述第四速度低于所述第一速度。Among them, the fourth frequency is higher than the first frequency, the fourth duration is greater than the first duration, and the fourth speed is lower than the first speed.
  7. 根据权利要求6所述的空调器的控制方法，其中，确定所述换热模式为制热模式，则所述根据所述出风温度和所述室外环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，具体包括：According to the control method of the air conditioner of claim 6, wherein, when the heat exchange mode is determined to be a heating mode, the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the air outlet temperature and the outdoor ambient temperature specifically comprises:
    确定所述室外环境温度小于等于所述第二温度阈值，且所述出风温度大于所述第三温度阈值，则调整所述运行频率至第五频率，所述回油时间至第五时长，所述升频速度至第五速度，Determine that the outdoor ambient temperature is less than or equal to the second temperature threshold, and the air outlet temperature is greater than the third temperature threshold, then adjust the operating frequency to the fifth frequency, the oil return time to the fifth duration, and the frequency increase speed to the fifth speed,
    其中，所述第四频率低于所述第五频率，所述第四时长大于所述第五时长，所述第四速度低于所述第五速度。Among them, the fourth frequency is lower than the fifth frequency, the fourth duration is greater than the fifth duration, and the fourth speed is lower than the fifth speed.
  8. 根据权利要求2至7任一项所述的空调器的控制方法，其中，所述根据所述换热模式以及所述环境温度调整压缩机的运行频率、回油时间以及升频速度的步骤，之后还包括：The control method of the air conditioner according to any one of claims 2 to 7, wherein the step of adjusting the operating frequency, oil return time and frequency increase speed of the compressor according to the heat exchange mode and the ambient temperature further comprises:
    根据所述室外环境温度确定压缩机的外环温限频频率；Determine the outer ring temperature limit frequency of the compressor according to the outdoor ambient temperature;
    确定所述运行频率高于所述外环温限频频率，则将所述运行频率调整至所述外环温限频频率。If it is determined that the operating frequency is higher than the outer ring temperature limit frequency, the operating frequency is adjusted to the outer ring temperature limit frequency.
  9. 一种空调器的控制装置，包括：A control device for an air conditioner, comprising:
    获取模块，用于获取空调器的换热模式以及环境温度；An acquisition module is used to acquire the heat exchange mode and ambient temperature of the air conditioner;
    控制模块，用于根据所述换热模式以及所述环境温度确定压缩机的 回油模式，所述回油模式至少包括快速回油模式和常规回油模式，所述快速回油模式的回油效率高于所述常规回油模式的回油效率。A control module is used to determine the compressor according to the heat exchange mode and the ambient temperature. The oil return mode includes at least a fast oil return mode and a normal oil return mode, and the oil return efficiency of the fast oil return mode is higher than that of the normal oil return mode.
  10. 一种空调器，其中，所述空调器运行时执行如权利要求1至8任一项所述的空调器的控制方法，或者包括权利要求9所述的空调器的控制装置。 An air conditioner, wherein the air conditioner executes the air conditioner control method according to any one of claims 1 to 8 when the air conditioner is in operation, or comprises the air conditioner control device according to claim 9.
PCT/CN2023/097178 2022-11-18 2023-05-30 Control method and control apparatus of air conditioner, and air conditioner WO2024103687A1 (en)

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CN109539632A (en) * 2018-11-28 2019-03-29 珠海格力电器股份有限公司 Oil return control method and device, storage medium and air conditioner
CN112032979A (en) * 2019-06-04 2020-12-04 青岛海尔空调器有限总公司 Control method of air conditioner
CN111141075A (en) * 2020-01-06 2020-05-12 宁波奥克斯电气股份有限公司 Air conditioner control method and device, air conditioner and storage medium
CN114322267A (en) * 2022-01-04 2022-04-12 广东美的制冷设备有限公司 Control method of air conditioner, air conditioner and storage medium
CN115654671A (en) * 2022-11-18 2023-01-31 青岛海尔空调器有限总公司 Control method and control device of air conditioner and air conditioner

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