WO2019037721A1 - 空调装置及其控制方法 - Google Patents

空调装置及其控制方法 Download PDF

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Publication number
WO2019037721A1
WO2019037721A1 PCT/CN2018/101578 CN2018101578W WO2019037721A1 WO 2019037721 A1 WO2019037721 A1 WO 2019037721A1 CN 2018101578 W CN2018101578 W CN 2018101578W WO 2019037721 A1 WO2019037721 A1 WO 2019037721A1
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preset
temperature
humidity
outdoor environment
frequency
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PCT/CN2018/101578
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English (en)
French (fr)
Inventor
董志钢
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青岛海尔空调器有限总公司
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Publication of WO2019037721A1 publication Critical patent/WO2019037721A1/zh

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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
    • 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

Definitions

  • the invention relates to an air conditioning defrosting technology, in particular to an air conditioning device and a control method thereof.
  • the outdoor heat exchanger exchanges heat with the low temperature environment, and absorbs heat during the evaporation process.
  • the surface temperature of the outdoor heat exchanger is lower than the ambient dew point temperature, condensed water is generated and adheres to the outdoor heat exchanger area.
  • the condensed water condenses to a certain thickness, a frost layer is formed and even ice is formed. If the frost layer or the ice layer is not removed in time, the heat exchange effect of the outdoor heat exchanger will be seriously affected, and the heat generation in the room will be reduced, and the user experience will become poor, so the outdoor heat exchanger needs to be defrosted.
  • the climate in the south and north is different in winter.
  • the humidity in the south is high and the temperature is higher than that in the north.
  • the humidity in the north is low in winter, and the temperature is below zero.
  • the winter is below minus 20 degrees. Due to the climatic differences between the north and the south, and the temperature and humidity are two factors closely related to the frosting of the outdoor heat exchanger, if the same defrost mode is used for the air conditioning unit used in any area, the effect is not good.
  • the existing defrosting mode may only be applied to areas where the temperature and humidity are between the north and south, and the defrosting effect in the south and north is not particularly good.
  • other existing air conditioning defrosting modes may only be applicable to the south or only to the north.
  • An object of the first aspect of the present invention is to overcome at least one of the deficiencies of the prior art, and to provide a method of controlling an air conditioning apparatus so as to be able to automatically select an optimum defrosting mode according to its use environment.
  • a further object of the first aspect of the invention is to expand the optimal range of use of the air conditioning unit.
  • An object of the second aspect of the present invention is to provide an air conditioning apparatus.
  • a control method of an air conditioning apparatus includes:
  • the first defrost mode is performed when the temperature and humidity of the outdoor environment satisfy any of the following conditions:
  • the temperature of the outdoor environment is higher than the first preset temperature
  • the temperature of the outdoor environment is lower than the second preset temperature
  • the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than or equal to the first preset temperature, and the humidity of the outdoor environment is less than the preset humidity threshold;
  • the second preset temperature is lower than the first preset temperature, and in the first defrosting mode, the compressor of the air conditioner operates at a first preset frequency;
  • the operation of performing the other defrosting mode when the temperature and the humidity of the outdoor environment do not satisfy all the foregoing conditions specifically includes:
  • the third defrost mode is executed when the following conditions are simultaneously satisfied, otherwise the second defrost mode is executed:
  • the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than or equal to the first preset temperature
  • the humidity of the outdoor environment is greater than or equal to the first preset humidity
  • the compressor performs the operation of the switch machine for more than N times in the fourth preset time period before the current time, and does not perform any defrosting operation;
  • the compressors are respectively operated at the second preset frequency and the third preset frequency, and the first preset frequency, the second preset frequency, and the third preset frequency are sequentially Increase.
  • the first preset frequency, the second preset frequency, and the third preset frequency satisfy the following relationship:
  • f 1 is the first preset frequency
  • f 2 is the second preset frequency
  • f 3 is the third preset frequency
  • the compressor runs at a first preset frequency for a first preset duration
  • the compressor runs at a second preset frequency for a second preset duration
  • the compressor operates at a third preset frequency for a third preset duration
  • the first preset duration, the second preset duration, and the third preset duration increase in sequence.
  • the first preset duration, the second preset duration, and the third preset duration satisfy the following relationship:
  • t 1 is a first preset duration
  • t 2 is a second preset duration
  • t 3 is a third preset duration
  • the fourth preset duration is any time length value ranging between 2.5h and 3.5h, and N is any integer ranging between 2 and 4.
  • the operation for obtaining the temperature and humidity of the outdoor environment in which the air conditioner is located specifically includes:
  • the fifth preset duration is any length of time value ranging between 15 min and 25 min.
  • the first preset temperature is any temperature value ranging between 4 ° C and 6 ° C
  • the second preset temperature is any temperature value ranging between -6 ° C and -4 ° C
  • the preset humidity threshold is any relative humidity value ranging between 75% and 85%.
  • an air conditioning apparatus includes an outdoor unit for outdoor installation and an indoor unit for installing indoors, and a compressor for providing compressed refrigerant is provided in the outdoor unit, wherein
  • the air conditioning unit also includes:
  • a temperature detecting device and a humidity detecting device are disposed in the outdoor unit to respectively acquire temperature and humidity of an outdoor environment in which the outdoor unit is located;
  • the control device is configured to control the compressor to perform the first defrosting mode when the temperature and humidity of the outdoor environment meet any of the following conditions, and control the compressor to perform other defrosting modes when the temperature and humidity of the outdoor environment do not satisfy all of the following conditions:
  • the temperature of the outdoor environment is higher than the first preset temperature
  • the temperature of the outdoor environment is lower than the second preset temperature
  • the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than or equal to the first preset temperature, and the humidity of the outdoor environment is less than the preset humidity threshold;
  • the second preset temperature is lower than the first preset temperature, and in the first defrosting mode, the operating frequency of the compressor is lower than the operating frequency in the other defrosting modes.
  • a control apparatus for an air conditioning apparatus includes a memory and a processor, wherein a memory is stored in the control program, and the control program is used by the processor to implement the air conditioner of any of the above The method of control of the device.
  • the control method of the air conditioner of the present invention has different defrosting schemes according to different outdoor environment temperature and humidity, so that the air conditioner can automatically select an appropriate defrosting mode according to the climate difference in which it is located, thereby obtaining the best defrosting Effect and defrosting efficiency.
  • the temperature interval between the second preset temperature and the first preset temperature is a temperature interval in which the outdoor heat exchanger is relatively easy to frost, and other temperature ranges outside the temperature interval, or the temperature is in the In the interval, but the ambient humidity is low, the first defrosting mode with a lower compressor operating frequency can be used.
  • the ambient temperature is between the second preset temperature and the first preset temperature and the ambient humidity is large, another defrosting mode with a higher compressor operating frequency is selected.
  • the other defrosting mode of the present invention can be further subdivided into a second defrosting mode and a third defrosting mode according to the overall operation of the compressor. Specifically, when the compressor performs the operation of the switch machine for more than N times in the fourth preset time period without any defrosting operation, the outdoor heat exchanger is most likely to cause frosting, and the frosting degree is the most serious. In this case, at the same time, the third defrosting mode with the highest operating frequency of the compressor can quickly and effectively remove the frost without affecting the user's use or wasting energy.
  • the air conditioning apparatus to which the control method of the present invention is applied can also exert an optimum defrosting effect in a hotel or the like, and expand the optimal use range of the air conditioning apparatus.
  • FIG. 1 is a schematic flow chart of a control method of an air conditioning apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a control method of an air conditioning apparatus according to another embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of obtaining temperature and humidity of an outdoor environment in which an air conditioning device is located in a control method of an air conditioner according to another embodiment of the present invention
  • FIG. 4 is a schematic structural block diagram of an air conditioning apparatus according to an embodiment of the present invention.
  • Fig. 5 is a block diagram showing a schematic configuration of a control device in an air conditioning apparatus according to an embodiment of the present invention.
  • Embodiments of the present invention first provide a method of controlling an air conditioner.
  • the control method includes:
  • the first defrost mode is performed when the temperature and humidity of the outdoor environment satisfy any of the following conditions:
  • the temperature of the outdoor environment is higher than the first preset temperature
  • the temperature of the outdoor environment is lower than the second preset temperature
  • the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than the first preset temperature, and the humidity of the outdoor environment is less than the preset humidity threshold; wherein the second preset temperature is lower than the first preset temperature, and In a defrosting mode, the compressor of the air conditioning device operates at a first preset frequency;
  • FIG. 1 is a schematic flowchart of a method for controlling an air conditioner according to an embodiment of the present invention.
  • the control method of the present invention may specifically include:
  • Step S301 acquiring temperature and humidity of an outdoor environment in which the air conditioner is located;
  • Step S302 determining whether the temperature of the outdoor environment is higher than the first preset temperature or lower than the second preset temperature, and if yes, proceeding to step S303, if not, proceeding to step S304;
  • Step S303 performing a first defrosting mode, and the compressor operates at a first preset frequency
  • Step S304 determining whether the humidity of the outdoor environment is less than the preset humidity threshold, and if so, proceeding to step S303, if no, proceeding to step S305;
  • step S305 another defrosting mode is executed, and the operating frequency of the compressor is higher than the first preset frequency.
  • the control method of the air conditioner of the present invention has different defrosting schemes according to different outdoor environment temperature and humidity, so that the air conditioner can automatically select an appropriate defrosting mode according to the climatic difference in which it is located, and is more targeted, thereby obtaining The best defrosting effect and defrosting efficiency.
  • the temperature interval between the second preset temperature and the first preset temperature is a temperature interval in which the outdoor heat exchanger is relatively easy to frost, and other temperature ranges outside the temperature interval, or the temperature is in the In the interval, but the ambient humidity is low, the first defrosting mode with lower compressor operating frequency can be used. This situation is mainly applicable to low temperature and low humidity areas in the north.
  • the outdoor heat exchanger is relatively easy to frost.
  • the heat absorption surface area of the heat exchanger increases, and the heat absorption capacity becomes larger.
  • the frost layer is more and more, the fins of the heat exchanger are blocked from the air, and the heat absorption capability is dramatically drop.
  • the humidity and temperature are in the above range, the frosting speed of the outdoor heat exchanger becomes very fast.
  • the frost layer will become thicker and thicker, and even during the defrosting process, the defrosting can not be defrosted, thus forming Vicious circle: the frost layer is getting thicker and thicker, and the heating effect is getting worse. Therefore, choose another defrosting mode with a higher compressor operating frequency. It can be seen that the present invention can automatically select an appropriate defrosting mode according to the temperature and humidity environment in which the air conditioning device is actually located. On the one hand, the best defrosting effect and defrosting efficiency can be obtained, on the other hand, it does not affect the defrosting effect.
  • the normal heating function improves the user experience.
  • the first preset temperature may be any temperature value ranging between 4 ° C and 6 ° C
  • the second preset temperature may be between -6 ° C and -4 ° C. Any temperature value.
  • the first preset temperature may be 4 ° C, 4.5 ° C, 5 ° C, 5.5 ° C, 6 ° C
  • the second preset temperature may be -6 ° C, -5.5 ° C, -5 ° C, -4.5 ° C, -4 ° C.
  • the first preset temperature is 5 ° C and the second preset temperature is -5 ° C, it is more in line with the temperature difference between the north and the south of China. At this time, the defrosting effect of the air conditioner is the best.
  • the preset humidity threshold referred to in the present invention is a relative humidity value.
  • the preset humidity threshold of the present invention may be any relative humidity value ranging between 75% and 85%.
  • the preset humidity threshold can be 75%, 77%, 80%, 82%, 85%.
  • the preset humidity threshold is 80%, it is more in line with the humidity difference between the north and the south of China. At this time, the defrosting effect of the air conditioner is the best.
  • the operations of performing other defrosting modes when the temperature and humidity of the outdoor environment do not satisfy all the above conditions specifically include:
  • the third defrost mode is executed when the following conditions are simultaneously satisfied, otherwise the second defrost mode is executed:
  • the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than or equal to the first preset temperature
  • the humidity of the outdoor environment is higher than or equal to the first preset humidity
  • the compressor 11 performs the switch operation for more than N times in the fourth preset time period before the current time, and does not perform any defrosting operation;
  • the compressor 11 is respectively operated at the second preset frequency and the third preset frequency, and the first preset frequency, the second preset frequency, and the third preset frequency Increase in turn.
  • control method of the present invention may specifically include:
  • Step S401 obtaining temperature and humidity of an outdoor environment in which the air conditioner is located;
  • Step S402 determining whether the temperature of the outdoor environment is higher than the first preset temperature or lower than the second preset temperature, and if so, proceeding to step S403, if not, proceeding to step S404;
  • Step S403 performing a first defrosting mode, and the compressor operates at a first preset frequency
  • Step S404 it is determined whether the humidity of the outdoor environment is less than the preset humidity threshold, and if so, then proceeds to step S403, and if not, then proceeds to step S405;
  • Step S405 it is determined whether the compressor 11 performs the switch operation for more than N times in the fourth preset time period before the current time, and does not perform any defrosting operation, if yes, then go to step S406, if no, go to step S407;
  • Step S406 performing a third defrosting mode, and the compressor is operated at a third preset frequency
  • step S407 the second defrosting mode is executed, and the compressor operates at the second preset frequency.
  • the first preset frequency, the second preset frequency, and the third preset frequency are sequentially increased.
  • the other defrosting modes can be further subdivided into a second defrosting mode and a third defrosting mode according to the overall operation of the compressor.
  • the second defrosting mode with a slightly higher operating frequency of the compressor can be used to effectively perform defrosting, which is more suitable for the general use in the south. Home or business user.
  • the outdoor heat exchanger is most likely to cause frost formation, and is also the time when the frost is the fastest.
  • the third defrosting mode with the highest operating frequency of the compressor can quickly and effectively remove the frost without affecting the user's use or wasting energy.
  • the above situation will mainly occur in the southern hotel, the environment humidity is large, and the user often inserts and removes the room card, which causes the air conditioner to be energized and de-energized multiple times in a short time.
  • the air conditioning apparatus to which the control method of the present invention is applied can also exert an optimum defrosting effect in a hotel or the like, and expand the optimal use range of the air conditioning apparatus.
  • the compressor 11 in the first defrosting mode, the compressor 11 is operated at a first preset frequency for a first predetermined duration, and in the second defrosting mode, the compressor 11 is at a second predetermined frequency.
  • the second preset duration is run, and in the third defrosting mode, the compressor 11 is operated at the third preset frequency for a third preset duration.
  • the first preset duration, the second preset duration, and the third preset duration are sequentially increased, thereby ensuring that each defrosting mode can obtain a better defrosting effect.
  • first preset duration, the second preset duration, and the third preset duration are time length values preset in the air conditioner, and the specific values may be according to different types or models of air conditioners. And it is different.
  • first preset frequency, the second preset frequency, and the third preset frequency are also frequency values preset in the air conditioner, and the specific value may be different according to different types or models of air conditioners. The type of compressor varies.
  • the fourth preset duration may be any time length value ranging between 2.5h and 3.5h, and N may be any integer ranging between 2 and 4.
  • the fourth preset duration may be 2.5h, 2.7h, 3h, 3.2h, or 3.5h, and the value of N may be 2, 3, or 4.
  • the fourth preset duration is 3h, and when the value of N is 3, the determination of which defrosting mode is performed is more accurate, and the defrosting is more thorough.
  • FIG. 3 is a schematic flow chart showing the temperature and humidity of an outdoor environment in which an air conditioning apparatus is located in a control method of an air conditioning apparatus according to another embodiment of the present invention.
  • the operation of obtaining the temperature and humidity of the outdoor environment in which the air conditioning device is located specifically includes:
  • Step S502 detecting the temperature and humidity of the outdoor environment at intervals of a predetermined time period
  • Step S504 for a fifth preset duration, taking an average value of the plurality of temperature values detected within the fifth preset duration as the temperature value of the acquired outdoor environment;
  • Step S506 taking an average value of the plurality of humidity values detected within the fifth preset time period as the acquired humidity value of the outdoor environment.
  • the fifth preset duration may be in the range of 15 min to 25 min. Any time length value between.
  • the fifth preset duration may be 15 min, 17 min, 20 min, 22 min, or 25 min. The best effect is when the fifth preset duration is 20 min.
  • Embodiments of the present invention also provide an air conditioning apparatus.
  • 4 is a schematic structural block diagram of an air conditioning apparatus according to an embodiment of the present invention.
  • an air conditioning apparatus 1 of the present invention includes an outdoor unit 10 for outdoor installation and an indoor unit 20 for indoor installation, outdoor The machine 10 is provided with a compressor 11 for supplying compressed refrigerant and an outdoor heat exchanger 12 for heat exchange with air in an outdoor environment.
  • the air conditioning apparatus 1 further includes a temperature detecting device 13, a humidity detecting device 14, and a control device 15.
  • the temperature detecting device 13 and the humidity detecting device 14 are provided in the outdoor unit 10 for respectively acquiring the temperature and humidity of the outdoor environment in which the outdoor unit 10 is located.
  • the control device 15 is configured to control the compressor 11 to perform the first defrosting mode when the temperature and humidity of the outdoor environment satisfy any of the following conditions, and to control the compressor 11 to perform other defrosting when the temperature and humidity of the outdoor environment do not satisfy all of the following conditions mode.
  • the conditions include: the temperature of the outdoor environment is greater than the first preset temperature; the temperature of the outdoor environment is less than the second preset temperature; the temperature of the outdoor environment is greater than or equal to the second preset temperature and less than or equal to the first preset temperature, and the outdoor environment
  • the humidity is less than the preset humidity threshold.
  • the second preset temperature is less than the first preset temperature, and in the first defrosting mode, the operating frequency of the compressor 11 is lower than the operating frequency in the other defrosting modes.
  • the temperature detecting device 13 and the humidity detecting device 14 may be a temperature sensor and a humidity sensor, respectively.
  • the control device 15 can be the overall controller of the air conditioning device 1.
  • control device 15 is further configured to control compressor 11 to perform a third defrosting mode when the following conditions are simultaneously met, otherwise controlling compressor 11 to perform a second defrosting mode.
  • the conditions include: the temperature of the outdoor environment is higher than or equal to the second preset temperature and lower than the first preset temperature; the humidity of the outdoor environment is greater than or equal to the first preset humidity; and the fourth preset duration of the compressor before the current time
  • the switch is operated for more than N times and no defrosting operation is performed.
  • the compressor 11 is respectively operated at the second preset frequency and the third preset frequency, and the first preset frequency, the second preset frequency, and the third pre-predetermined Set the frequency to increase in turn.
  • control device 15 is further configured to control the compressor 11 to operate at a second predetermined frequency for a second predetermined duration in the second defrosting mode, and to control the compressor 11 in the third defrosting mode.
  • the third preset duration is run at a third preset frequency.
  • the first preset duration, the second preset duration, and the third preset duration are sequentially increased.
  • control device 15 is further configured to control the temperature detecting device 13 and the humidity detecting device 14 to detect the temperature and humidity of the outdoor environment at intervals of a predetermined time period, and continue for a fifth preset duration, and take The average value of the plurality of temperature values detected in the fifth preset time period is taken as the temperature value of the acquired outdoor environment, and the average value of the plurality of humidity values detected within the fifth preset time period is obtained as the obtained The humidity value of the outdoor environment.
  • Fig. 5 is a block diagram showing a schematic configuration of a control device 15 in an air conditioning apparatus 1 according to an embodiment of the present invention.
  • the control device 15 of the present embodiment may include a memory 151 and a processor 153, wherein the control program 152 is stored in the memory 151, and the control method for implementing the air conditioner of any of the above embodiments when the control program 152 is executed by the processor 153 .

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Abstract

一种空调装置（1）及其控制方法，该方法包括：获取空调装置（1）处的室外环境温度和湿度；当室外环境温度高于第一预设温度，或室外环境温度低于第二预设温度，或室外环境温度高于等于第二预设温度且低于等于第一预设温度、且室外环境湿度小于预设湿度阈值，执行第一化霜模式，压缩机（11）以第一预设频率运行，其中第二预设温度低于第一预设温度；否则执行其他化霜模式，压缩机（11）运行频率高于第一预设频率。

Description

空调装置及其控制方法 技术领域
本发明涉及空调除霜技术，特别是涉及一种空调装置及其控制方法。
背景技术
空调在冬天使用制热功能时，室外换热器与低温环境进行热交换，蒸发过程时吸收热量。当室外换热器的表面温度低于环境的露点温度时，就会产生冷凝水，附着在室外换热器面积。当冷凝水凝聚到一定厚度，会形成霜层，甚至会结冰。如果霜层或者冰层不及时除掉，就会严重影响室外换热器的换热效果，降低室内的制热量，用户体验会变得较差，因此需要对室外换热器进行除霜。
在我国，南方和北方冬季的气候有一定的差别，南方冬天湿度大，温度较北方高；北方冬天湿度低，温度在零下居多，尤其是东北地区的冬天长期在零下二十度以下。由于南北方的气候差异，而且温度和湿度是与室外换热器的结霜情况密切相关的两个因素，因此，如果对于无论在什么地区使用的空调装置都采用同一套除霜模式，效果并不好。例如现有的一些空调为了兼顾和平衡各个地区的情况，其除霜模式可能仅适用于温度和湿度介于南北方气候之间的地区，在南方和北方的除霜效果都不是特别好。再例如现有的另一些空调的除霜模式可能仅适用于南方或仅适用于北方。
发明内容
本发明第一方面的一个目的旨在克服现有技术中的至少一个缺陷，提供一种空调装置的控制方法，以便能够根据其使用环境自动选择最佳的化霜模式。
本发明第一方面的一个进一步的目的是扩大空调装置的最佳使用范围。
本发明第二方面的目的是提供一种空调装置。
根据本发明的第一方面，本发明提供一种空调装置的控制方法，包括：
获取空调装置所处的室外环境的温度和湿度；
当室外环境的温度和湿度满足以下任一条件时，执行第一化霜模式：
室外环境的温度高于第一预设温度；
室外环境的温度低于第二预设温度；
室外环境的温度高于等于第二预设温度且低于等于第一预设温度、且室外环境的湿度小于预设湿度阈值；其中
所述第二预设温度低于所述第一预设温度，且在所述第一化霜模式中，所述空调装置的压缩机以第一预设频率运行；以及
当室外环境的温度和湿度不满足上述所有条件时，执行其他化霜模式，在其他化霜模式中，压缩机的运行频率高于第一预设频率。
可选地，当室外环境的温度和湿度不满足上述所有条件时执行其他化霜模式的操作具体包括：
当下列条件同时满足时，执行第三化霜模式，否则执行第二化霜模式：
室外环境的温度高于等于第二预设温度且低于等于第一预设温度；
室外环境的湿度大于等于第一预设湿度；
压缩机在当前时刻之前的第四预设时长内执行开关机操作N次以上、且没有进行任何化霜操作；其中
在第二化霜模式和第三化霜模式下，压缩机分别以第二预设频率和第三预设频率运行，且第一预设频率、第二预设频率和第三预设频率依次增大。
可选地，第一预设频率、第二预设频率和第三预设频率满足下列关系：
f 3＝1.1f 1，f 2＝1.05f 1；
其中，f 1为所述第一预设频率，f 2为所述第二预设频率，f 3为所述第三预设频率。
可选地，在第一化霜模式下，压缩机以第一预设频率运行第一预设时长，在第二化霜模式下，压缩机以第二预设频率运行第二预设时长，在第三化霜模式下，压缩机以第三预设频率运行第三预设时长；且
第一预设时长、第二预设时长和第三预设时长依次增大。
可选地，第一预设时长、第二预设时长和第三预设时长满足下列关系：
t 3＝1.2t 1，t 2＝1.1t 1；
其中，t 1为第一预设时长，t 2为第二预设时长，t 3为第三预设时长。
可选地，第四预设时长为范围在2.5h～3.5h之间的任一时间长度值，N为范围在2～4之间的任一整数。
可选地，获取空调装置所处的室外环境的温度和湿度的操作具体包括：
按照预定的时间周期间隔地检测室外环境的温度和湿度，并持续第五预设时长，取在第五预设时长内检测到的多个温度值的平均值作为所获取到的 室外环境的温度值、取在第五预设时长内检测到的多个湿度值的平均值作为所获取到的室外环境的湿度值。
可选地，第五预设时长为范围在15min～25min之间的任一时间长度值。
可选地，第一预设温度为范围在4℃～6℃之间的任一温度值，第二预设温度为范围在-6℃～-4℃之间的任一温度值；且
预设湿度阈值为范围在75％～85％之间的任一相对湿度值。
根据本发明第二方面，本发明还提供一种空调装置，包括用于安装在室外的室外机和用于安装在室内的室内机，室外机中设有用于提供压缩冷媒的压缩机，其中，空调装置还包括：
温度检测装置和湿度检测装置，设置于室外机，以分别用于获取室外机所处室外环境的温度和湿度；以及
控制装置，配置成在室外环境的温度和湿度满足以下任一条件时控制压缩机执行第一化霜模式、在室外环境的温度和湿度不满足以下所有条件时控制压缩机执行其他化霜模式：
室外环境的温度高于第一预设温度；
室外环境的温度低于第二预设温度；
室外环境的温度高于等于第二预设温度且低于等于第一预设温度、且室外环境的湿度小于预设湿度阈值；其中
第二预设温度低于第一预设温度，且在第一化霜模式中，压缩机的运行频率低于在其他化霜模式中的运行频率。
根据本发明第三方面，本发明还提供一种空调装置的控制装置，其包括存储器以及处理器，其中存储器内存储有控制程序，控制程序被处理器执行时用于实现上述任一种的空调装置的控制方法。
本发明空调装置的控制方法根据不同的室外环境温度和湿度对应具有不同的化霜方案，因此能够使得空调装置根据其所处的气候差异自动选择合适的化霜模式，从而获得最佳的化霜效果和化霜效率。具体地，第二预设温度和第一预设温度之间的温度区间是室外换热器比较容易结霜的温度区间，而在该温度区间之外的其他温度区间，或者，温度虽然在该区间内，但是环境湿度较低的情况，都可以采用压缩机运行频率较低的第一化霜模式。在环境温度处于第二预设温度和第一预设温度之间以及环境湿度较大的情况下则选择压缩机运行频率较高的其他化霜模式。由此，能够根据空调装置实际所处的温湿度环境自动选择合适的化霜模式，一方面，能够获得最佳的化霜 效果和化霜效率，另一方面，还不会影响其正常的制热功能，提高了用户的使用体验。
进一步地，本发明其他的化霜模式又可根据压缩机的整体运行情况进一步细分为第二化霜模式和第三化霜模式。具体地，当压缩机在第四预设时长内执行开关机操作N次以上、且无任何化霜操作的情况下，是室外换热器最容易产生结霜的情况，也是结霜程度最严重的情况，此时，采用压缩机运行频率最高的第三化霜模式既可快速有效地除去结霜，又不会影响用户使用或者浪费能源。上述情况主要会发生在南方宾馆内，环境湿度大，用户经常插拔房卡而导致空调装置短时间内多次通电、断电的现象。由此可见，应用本发明控制方法的空调装置同样能够在宾馆等类似场所发挥最佳的化霜效果，扩大了空调装置的最佳使用范围。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的空调装置的控制方法的示意性流程图；
图2是根据本发明另一个实施例的空调装置的控制方法的示意性流程图；
图3是根据本发明另一个实施例的空调装置的控制方法中获取空调装置所处的室外环境的温度和湿度的示意流程图；
图4是根据本发明一个实施例的空调装置的示意性结构框图；以及
图5是根据本发明一个实施例的空调装置中控制装置的示意性结构框图。
具体实施方式
本发明实施例首先提供一种空调装置的控制方法。该控制方法包括：
获取空调装置所处的室外环境的温度和湿度；
当室外环境的温度和湿度满足以下任一条件时，执行第一化霜模式：
室外环境的温度高于第一预设温度；
室外环境的温度低于第二预设温度；
室外环境的温度高于等于第二预设温度且低于等于第一预设温度、且室外环境的湿度小于预设湿度阈值；其中第二预设温度低于第一预设温度，且在第一化霜模式中，空调装置的压缩机以第一预设频率运行；以及
当室外环境的温度和湿度不满足上述所有条件时，执行其他化霜模式，在其他化霜模式中，压缩机11的运行频率高于第一预设频率。
具体地，图1是根据本发明一个实施例的空调装置的控制方法的示意性流程图，参见图1，本发明的控制方法具体可包括：
步骤S301，获取空调装置所处的室外环境的温度和湿度；
步骤S302，判断室外环境的温度是否高于第一预设温度或是否低于第二预设温度，若是，则转步骤S303，若否，则转步骤S304；
步骤S303，执行第一化霜模式，压缩机以第一预设频率运行；
步骤S304，判断室外环境的湿度是否小于预设湿度阈值，若是，则转步骤S303，若否，则转步骤S305；
步骤S305，执行其他化霜模式，且压缩机的运行频率高于第一预设频率。
本发明空调装置的控制方法根据不同的室外环境温度和湿度对应具有不同的化霜方案，因此能够使得空调装置根据其所处的气候差异自动选择合适的化霜模式，更加有针对性，从而获得最佳的化霜效果和化霜效率。具体地，第二预设温度和第一预设温度之间的温度区间是室外换热器比较容易结霜的温度区间，而在该温度区间之外的其他温度区间，或者，温度虽然在该区间内，但是环境湿度较低的情况，都可以采用压缩机运行频率较低的第一化霜模式，这种情况主要适用于北方低温低湿度的地区。在环境温度处于第二预设温度和第一预设温度之间以及环境湿度较大的情况下，室外换热器比较容易结霜。开始时，由于霜层的存在，换热器的吸热表面积增加，吸热能力会变大；当霜层越来越多，阻碍了换热器的翅片与空气的接触，吸热能力会大幅下降。当湿度和温度在上述区间范围里，室外换热器结霜速度变得很快，如果不及时化霜，霜层会越来越厚，甚至在化霜过程中也不能除霜干净，这样形成恶性循环：霜层越来越厚，制热效果越来越差。因此，选择压缩机运行频率较高的其他化霜模式。由此可见，本发明能够根据空调装置实际所处的温湿度环境自动选择合适的化霜模式，一方面，能够获得最佳的化霜效 果和化霜效率，另一方面，还不会影响其正常的制热功能，提高了用户的使用体验。
在本发明的一些实施例中，第一预设温度可以为范围在4℃～6℃之间的任一温度值，第二预设温度可以为范围在-6℃～-4℃之间的任一温度值。例如第一预设温度可以为4℃、4.5℃、5℃、5.5℃、6℃，第二预设温度可以为-6℃、-5.5℃、-5℃、-4.5℃、-4℃。当第一预设温度为5℃、且第二预设温度为-5℃时更加符合我国南北方的温度差异情况，此时空调装置的化霜效果最佳。
需要强调的是，本发明所说的预设湿度阈值为相对湿度值。进一步地，本发明的预设湿度阈值可以为范围在75％～85％之间的任一相对湿度值。例如，预设湿度阈值可以为75％、77％、80％、82％、85％。当预设湿度阈值为80％更加符合我国南北方的湿度差异情况，此时空调装置的化霜效果最佳。
在本发明的一些实施例中，当室外环境的温度和湿度不满足上述所有条件时执行其他化霜模式的操作具体包括：
当下列条件同时满足时，执行第三化霜模式，否则执行第二化霜模式：
室外环境的温度高于等于第二预设温度且低于等于第一预设温度；
室外环境的湿度高于等于第一预设湿度；
压缩机11在当前时刻之前的第四预设时长内执行开关机操作N次以上、且没有进行任何化霜操作；其中
在第二化霜模式和第三化霜模式下，压缩机11分别以第二预设频率和第三预设频率运行，且第一预设频率、第二预设频率和第三预设频率依次增大。
具体地，图2是根据本发明另一个实施例的空调装置的控制方法的示意性流程图，参见图2，本发明的控制方法具体可包括：
步骤S401，获取空调装置所处的室外环境的温度和湿度；
步骤S402，判断室外环境的温度是否高于第一预设温度或是否低于第二预设温度，若是，则转步骤S403，若否，则转步骤S404；
步骤S403，执行第一化霜模式，压缩机以第一预设频率运行；
步骤S404，判断室外环境的湿度是否小于预设湿度阈值，若是，则转步骤S403，若否，则转步骤S405；
步骤S405，判断压缩机11在当前时刻之前的第四预设时长内是否执行 开关机操作N次以上、且没有进行任何化霜操作，若是，则转步骤S406，若否，则转步骤S407；
步骤S406，执行第三化霜模式，压缩机以第三预设频率运行；
步骤S407，执行第二化霜模式，压缩机以第二预设频率运行。
其中，第一预设频率、第二预设频率和第三预设频率依次增大。
可见，在本发明的进一步实施例中，其他的化霜模式又可根据压缩机的整体运行情况进一步细分为第二化霜模式和第三化霜模式。具体地，当环境温度适中且单纯地只存在室外环境湿度较高的情况时，采用压缩机运行频率稍高的第二化霜模式即可有效地进行化霜，这种情况比较适用于南方普通家庭用户或商业用户。当压缩机在第四预设时长内执行开关机操作N次以上、且无任何化霜操作的情况下，是室外换热器最容易产生结霜的情况，也是结霜最快的时候。此时，采用压缩机运行频率最高的第三化霜模式既可快速有效地除去结霜，又不会影响用户使用或者浪费能源。上述情况主要会发生在南方宾馆内，环境湿度大，用户经常插拔房卡而导致空调装置短时间内多次通电、断电的现象。由此可见，应用本发明控制方法的空调装置同样能够在宾馆等类似场所发挥最佳的化霜效果，扩大了空调装置的最佳使用范围。
在本发明的一些实施例中，第一预设频率、第二预设频率和第三预设频率满足下列关系：f 3＝1.1f 1，f 2＝1.05f 1；其中，f 1为第一预设频率，f 2为第二预设频率，f 3为第三预设频率。由此，能够保证各个化霜模式的化霜效率均比较高。
在本发明的一些实施例中，在第一化霜模式下，压缩机11以第一预设频率运行第一预设时长，在第二化霜模式下，压缩机11以第二预设频率运行第二预设时长，在第三化霜模式下，压缩机11以第三预设频率运行第三预设时长。第一预设时长、第二预设时长和第三预设时长依次增大，由此，可保证各个化霜模式均能够获得较佳的化霜效果。
进一步地，第一预设时长、第二预设时长和第三预设时长满足下列关系：t 3＝1.2t 1，t 2＝1.1t 1；其中，t 1为第一预设时长，t 2为第二预设时长，t 3为第三预设时长，以进一步改善各个化霜模式的化霜效果。
需要说明的是，第一预设时长、第二预设时长和第三预设时长都是预先设置在空调装置中的时间长度值，其具体取值大小可根据不同类型或机型的空调装置而有所不同。同理，第一预设频率、第二预设频率和第三预设频率也都是预先设置在空调装置中的频率值，其具体取值大小可根据不同类型或 机型的空调装置和不同型号的压缩机而有所不同。
在本发明的一些实施例中，第四预设时长可以为范围在2.5h～3.5h之间的任一时间长度值，N可以为范围在2～4之间的任一整数。例如，第四预设时长可以为2.5h、2.7h、3h、3.2h或3.5h，N的取值可以为2、3、4。优选地，当第四预设时长为3h、且当N的取值为3时，执行哪种化霜模式的判断更加准确，化霜更加彻底。
图3是根据本发明另一个实施例的空调装置的控制方法中获取空调装置所处的室外环境的温度和湿度的示意流程图。在本发明的一些实施例中，获取空调装置所处的室外环境的温度和湿度的操作具体包括：
步骤S502，按照预定的时间周期间隔地检测室外环境的温度和湿度；
步骤S504，持续第五预设时长，取在第五预设时长内检测到的多个温度值的平均值作为所获取到的室外环境的温度值；
步骤S506，取在第五预设时长内检测到的多个湿度值的平均值作为所获取到的室外环境的湿度值。
也就是说，在对室外环境的温度和湿度进行检测时，可持续检测一定的时间段，采用多次获取参数值，最后取平均值的方式，以保证所获取的室外温度和湿度的准确性，从而为化霜模式的正确判断和选择奠定基础。
进一步地，第五预设时长的值太大或太小都会影响室外温度和湿度的准确性，因此，在本发明的一些进一步实施例中，第五预设时长可以为范围在15min～25min之间的任一时间长度值。例如，第五预设时长可以为15min、17min、20min、22min或25min。当第五预设时长为20min时效果最佳。
本发明实施例还提供一种空调装置。图4是根据本发明一个实施例的空调装置的示意性结构框图，参见图4，本发明的空调装置1包括用于安装在室外的室外机10和用于安装在室内的室内机20，室外机10中设有用于提供压缩冷媒的压缩机11和用于与室外环境中的空气进行热交换的室外换热器12。
特别地，空调装置1还包括温度检测装置13、湿度检测装置14和控制装置15。温度检测装置13和湿度检测装置14设置于室外机10，以分别用于获取室外机10所处室外环境的温度和湿度。控制装置15配置成在室外环境的温度和湿度满足以下任一条件时控制压缩机11执行第一化霜模式、在室外环境的温度和湿度不满足以下所有条件时控制压缩机11执行其他化霜模式。这些条件包括：室外环境的温度大于第一预设温度；室外环境的温度 小于第二预设温度；室外环境的温度大于等于第二预设温度且小于等于第一预设温度、且室外环境的湿度小于预设湿度阈值。第二预设温度小于第一预设温度，且在第一化霜模式中，压缩机11的运行频率低于在其他化霜模式中的运行频率。
具体地，温度检测装置13和湿度检测装置14可以分别为温度传感器和湿度传感器。控制装置15可以为空调装置1的总控制器。
在本发明的一些实施例中，控制装置15还配置成当下列条件同时满足时控制压缩机11执行第三化霜模式，否则控制压缩机11执行第二化霜模式。这些条件包括：室外环境的温度高于等于第二预设温度且低于等于第一预设温度；室外环境的湿度大于等于第一预设湿度；压缩机在当前时刻之前的第四预设时长内执行开关机操作N次以上、且没有进行任何化霜操作。
并且，在第二化霜模式和第三化霜模式下，压缩机11分别以第二预设频率和第三预设频率运行，且第一预设频率、第二预设频率和第三预设频率依次增大。
在本发明的一些实施例中，控制装置15还配置成在第二化霜模式下控制压缩机11以第二预设频率运行第二预设时长、在第三化霜模式下控制压缩机11以第三预设频率运行第三预设时长。并且，第一预设时长、第二预设时长和第三预设时长依次增大。
在本发明的一些实施例中，控制装置15还配置成控制温度检测装置13和湿度检测装置14按照预定的时间周期间隔地检测室外环境的温度和湿度，并持续第五预设时长，并取在第五预设时长内检测到的多个温度值的平均值作为所获取到的室外环境的温度值、取在第五预设时长内检测到的多个湿度值的平均值作为所获取到的室外环境的湿度值。
图5是根据本发明一个实施例的空调装置1中控制装置15的示意性结构框图。本实施例的控制装置15可以包括存储器151以及处理器153，其中存储器151内存储有控制程序152，控制程序152被处理器153执行时用于实现上述任一种实施例的空调装置的控制方法。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (11)

  1. 一种空调装置的控制方法，包括：
    获取所述空调装置所处的室外环境的温度和湿度；
    当室外环境的温度和湿度满足以下任一条件时，执行第一化霜模式：
    室外环境的温度高于第一预设温度；
    室外环境的温度低于第二预设温度；
    室外环境的温度高于等于第二预设温度且低于等于第一预设温度、且室外环境的湿度小于预设湿度阈值；其中
    所述第二预设温度低于所述第一预设温度，且在所述第一化霜模式中，所述空调装置的压缩机以第一预设频率运行；以及
    当室外环境的温度和湿度不满足上述所有条件时，执行其他化霜模式，在其他化霜模式中，所述压缩机的运行频率高于所述第一预设频率。
  2. 根据权利要求1所述的控制方法，其中
    当室外环境的温度和湿度不满足上述所有条件时执行其他化霜模式的操作具体包括：
    当下列条件同时满足时，执行第三化霜模式，否则执行第二化霜模式：
    室外环境的温度高于等于第二预设温度且低于等于第一预设温度；
    室外环境的湿度大于等于第一预设湿度；
    所述压缩机在当前时刻之前的第四预设时长内执行开关机操作N次以上、且没有进行任何化霜操作；其中
    在所述第二化霜模式和所述第三化霜模式下，所述压缩机分别以第二预设频率和第三预设频率运行，且所述第一预设频率、所述第二预设频率和所述第三预设频率依次增大。
  3. 根据权利要求2所述的控制方法，其中
    所述第一预设频率、所述第二预设频率和所述第三预设频率满足下列关系：
    f 3＝1.1f 1，f 2＝1.05f 1；
    其中，f 1为所述第一预设频率，f 2为所述第二预设频率，f 3为所述第三预设频率。
  4. 根据权利要求2所述的控制方法，其中
    在所述第一化霜模式下，所述压缩机以所述第一预设频率运行第一预设时长，在所述第二化霜模式下，所述压缩机以第二预设频率运行第二预设时长，在所述第三化霜模式下，所述压缩机以第三预设频率运行第三预设时长；且
    所述第一预设时长、所述第二预设时长和所述第三预设时长依次增大。
  5. 根据权利要求4所述的控制方法，其中
    所述第一预设时长、所述第二预设时长和所述第三预设时长满足下列关系：
    t 3＝1.2t 1，t 2＝1.1t 1；
    其中，t 1为所述第一预设时长，t 2为所述第二预设时长，t 3为所述第三预设时长。
  6. 根据权利要求2所述的控制方法，其中
    所述第四预设时长为范围在2.5h～3.5h之间的任一时间长度值，N为范围在2～4之间的任一整数。
  7. 根据权利要求1所述的控制方法，其中
    获取所述空调装置所处的室外环境的温度和湿度的操作具体包括：
    按照预定的时间周期间隔地检测室外环境的温度和湿度，并持续第五预设时长，取在所述第五预设时长内检测到的多个温度值的平均值作为所获取到的室外环境的温度值、取在所述第五预设时长内检测到的多个湿度值的平均值作为所获取到的室外环境的湿度值。
  8. 根据权利要求7所述的控制方法，其中
    所述第五预设时长为范围在15min～25min之间的任一时间长度值。
  9. 根据权利要求1所述的控制方法，其中
    所述第一预设温度为范围在4℃～6℃之间的任一温度值，所述第二预设温度为范围在-6℃～-4℃之间的任一温度值；且
    所述预设湿度阈值为范围在75％～85％之间的任一相对湿度值。
  10. 一种空调装置，包括用于安装在室外的室外机和用于安装在室内的室内机，所述室外机中设有用于提供压缩冷媒的压缩机，其中，所述空调装置还包括：
    温度检测装置和湿度检测装置，设置于所述室外机，以分别用于获取所述室外机所处室外环境的温度和湿度；以及
    控制装置，配置成在室外环境的温度和湿度满足以下任一条件时控制所述压缩机执行第一化霜模式、在室外环境的温度和湿度不满足以下所有条件时控制所述压缩机执行其他化霜模式：
    室外环境的温度高于第一预设温度；
    室外环境的温度低于第二预设温度；
    室外环境的温度高于等于第二预设温度且低于等于第一预设温度、且室外环境的湿度小于预设湿度阈值；其中
    所述第二预设温度低于所述第一预设温度，且在所述第一化霜模式中，所述压缩机的运行频率低于在其他化霜模式中的运行频率。
  11. 一种空调装置的控制装置，其包括存储器以及处理器，其中所述存储器内存储有控制程序，所述控制程序被所述处理器执行时用于实现根据权利要求1至9中任一项所述的空调装置的控制方法。
PCT/CN2018/101578 2017-08-24 2018-08-21 空调装置及其控制方法 WO2019037721A1 (zh)

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