WO2019109959A1 - Air conditioning device and method for determining whether operating status thereof is normal - Google Patents

Air conditioning device and method for determining whether operating status thereof is normal Download PDF

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Publication number
WO2019109959A1
WO2019109959A1 PCT/CN2018/119399 CN2018119399W WO2019109959A1 WO 2019109959 A1 WO2019109959 A1 WO 2019109959A1 CN 2018119399 W CN2018119399 W CN 2018119399W WO 2019109959 A1 WO2019109959 A1 WO 2019109959A1
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Prior art keywords
temperature
air conditioner
air
difference
preset
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PCT/CN2018/119399
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French (fr)
Chinese (zh)
Inventor
肖克强
李伟
谢琳琳
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青岛海尔空调器有限总公司
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Publication of WO2019109959A1 publication Critical patent/WO2019109959A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air

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  • the invention relates to a common electrical appliance, in particular to an air conditioning device and a method for determining whether the operating state of the air conditioning device is normal.
  • various abnormal phenomena may occur. For example, when the air-conditioning unit is operated for a long period of time, the refrigerant will gradually leak into the air. When the refrigerant is less than a certain degree, the cooling and heating effect of the entire air-conditioning unit will be straight. decline.
  • the above-mentioned several types of refrigerant quantity detection methods are based on many parameters or complicated acquisition methods, and it is impossible to accurately or accurately determine whether the refrigerant of the air conditioner is missing or insufficient, and even a judgment error may occur.
  • the above-mentioned partial refrigerant amount detecting method is only applicable to a fixed-frequency air conditioner, and the application range is narrow.
  • An object of the first aspect of the present invention is to overcome at least one of the deficiencies in the prior art, and to provide a method that has a wide range of applications and can easily and accurately determine whether the operating state of the air conditioning apparatus is normal.
  • Another object of the first aspect of the present invention is to simplify the internal structure of the air conditioning apparatus and reduce the cost.
  • Still another object of the first aspect of the present invention is to improve the accuracy of the judgment.
  • An object of the second aspect of the present invention is to provide an air conditioning apparatus.
  • the present invention provides a method for determining whether an air conditioner is operating normally, including:
  • the method further includes:
  • the operating frequency of the compressor is sequentially increased by adding one unit hertz each time;
  • the compressor After each lifting of the operating frequency of the compressor, the compressor is stably operated for a second preset period of time, and then the outlet air temperature and the air inlet temperature are acquired again, and the absolute difference between the two is calculated and judged. Whether the value is greater than or equal to the preset temperature difference threshold, and if so, determining that the operating state of the air conditioner is normal; if not, increasing the operating frequency of the compressor again;
  • the method further includes:
  • the abnormality information is transmitted to the display panel of the air conditioner to give a prompt information indicating that the air conditioner is faulty.
  • each of said unit hertz is 0.5 Hz, 1.0 Hz or 1.5 Hz;
  • N 2, 3, 4 or 5.
  • the first preset duration is any time length value ranging between 10 and 15 minutes;
  • the second preset duration is any length of time value ranging between 9 and 11 s.
  • the method further includes determining whether the compressor is allowed to be the highest under the current working condition.
  • the step of running the frequency run which includes:
  • the deviation is 10 times a difference between the set temperature and the indoor temperature
  • the deviation is 10 times the difference between the indoor temperature and the set temperature.
  • the preset temperature difference threshold is matched with a parameter of the air conditioner in a current working condition, where the parameter includes an operation mode, an outdoor temperature of an outdoor environment in which the air conditioner is located, and an indoor environment in which the air conditioner is located Indoor temperature.
  • the air conditioner when the air conditioner is operated in the heating mode, the average of the outdoor temperature and the indoor temperature is larger, and the preset temperature difference threshold is smaller;
  • an air conditioning apparatus comprising:
  • a temperature sensor assembly configured to controlably acquire an air inlet temperature and an air outlet temperature of the air conditioner after the compressor of the air conditioner is stably operated for a first preset period of time at a maximum operating frequency allowed under current operating conditions; as well as
  • a control device coupled to the temperature sensor assembly to calculate an absolute value of a difference between the air outlet temperature and the air inlet temperature obtained by the temperature sensor assembly, and at the air outlet temperature and the It is determined that the operating state of the air conditioner is normal when the absolute value of the difference in the air inlet temperature is greater than or equal to the preset temperature difference threshold.
  • the judging method of the present invention determines whether there is a lack or shortage of refrigerant in the air conditioner by using the absolute value of the difference between the air inlet temperature and the outlet temperature of the air conditioner, thereby determining whether the operation of the air conditioner is normal, and the outlet temperature can directly reflect the air conditioner.
  • the heating and cooling effect of the device, and the electric heating for defrosting or other components that affect the temperature of the airflow are not provided at the air outlet. Therefore, the absolute value of the difference between the temperature of the air inlet and the temperature of the air outlet can accurately and timely reflect the air conditioner.
  • the amount of refrigerant in the refrigeration system of the device improves the accuracy and timeliness of the judgment.
  • the air inlet temperature and the air outlet temperature are obtained in a very simple manner, and the temperature sensor can be directly disposed at the air inlet and the air outlet, which simplifies the internal structure of the air conditioner and reduces the cost.
  • the inventors of the present invention have creatively realized that when the operating frequency of the compressor is unstable, the temperature of the air outlet of the air conditioner is greatly affected by external influences, and it is difficult to judge the temperature of the air outlet in this state. standard.
  • the invention only obtains the air inlet temperature and the air outlet temperature after the compressor is stably operated for a period of time at the highest operating frequency allowed. At this time, the outlet temperature is stable, and the absolute value of the difference between the two can accurately reflect the air conditioner.
  • the amount of refrigerant in the refrigeration system of the device improves the accuracy of the judgment.
  • the inventors of the present invention have recognized that a certain margin is left in designing the maximum operating frequency of the compressor, that is, the actual operating frequency of the compressor can exceed the maximum operating frequency within the margin. Therefore, when the determination method of the present invention first determines that the absolute value of the difference between the tuyere temperature and the air inlet temperature is less than the preset temperature difference threshold, it does not immediately determine that the air conditioner is abnormal, but on the basis of the highest operating frequency. The operation frequency of the compressor is successively increased by adding one unit Hertz, and the operation state of the air conditioner is judged to be normal again in the same manner. This method not only avoids the sudden increase of the actual operating frequency of the compressor, but also avoids judgment errors.
  • FIG. 1 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to a further embodiment of the present invention
  • FIG. 3 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to another further embodiment of the present invention.
  • Fig. 4 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present invention.
  • the embodiment of the invention first provides a method for determining whether the operating state of the air conditioner is normal.
  • 1 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, according to an embodiment of the present invention. Referring to Figure 1, the above method of the present invention comprises:
  • Step S102 after the compressor of the air conditioner is stably operated for the first preset period of time at the highest operating frequency allowed under the current working condition, obtaining the air inlet temperature and the outlet temperature of the air conditioner;
  • Step S104 calculating an absolute value of a difference between the tuyere temperature and the air inlet temperature
  • Step S106 determining whether the absolute value of the difference between the tuyere temperature and the air inlet temperature is greater than or equal to the preset temperature difference threshold, and if yes, executing step S108, that is, when the absolute value of the difference between the outlet temperature and the inlet temperature is greater than or equal to
  • the temperature difference threshold is set, it is determined that the operating state of the air conditioner is normal. That is to say, at this time, the amount of refrigerant in the refrigeration system of the air conditioner is sufficient.
  • the judging method of the present invention determines whether there is a lack or shortage of refrigerant in the air conditioner by using the absolute value of the difference between the air inlet temperature and the outlet temperature of the air conditioner, thereby determining whether the operation of the air conditioner is normal, and the outlet temperature can directly reflect the air conditioner.
  • the heating and cooling effect of the device, and the electric heating for defrosting or other components that affect the temperature of the airflow are not provided at the air outlet. Therefore, the absolute value of the difference between the temperature of the air inlet and the temperature of the air outlet can accurately and timely reflect the air conditioner.
  • the amount of refrigerant in the refrigeration system of the device improves the accuracy and timeliness of the judgment.
  • the air inlet temperature and the air outlet temperature are obtained in a very simple manner, and the temperature sensor can be directly disposed at the air inlet and the air outlet, which simplifies the internal structure of the air conditioner and reduces the cost.
  • the inventors of the present invention have creatively realized that when the operating frequency of the compressor is unstable, the temperature of the air outlet of the air conditioner is greatly affected by external influences, and it is not easy to use the temperature of the air outlet in this state.
  • the invention only obtains the air inlet temperature and the air outlet temperature after the compressor is stably operated for a period of time at the highest operating frequency allowed. At this time, the outlet temperature is stable, and the absolute value of the difference between the two can accurately reflect the air conditioner.
  • the amount of refrigerant in the refrigeration system of the device improves the accuracy of the judgment.
  • the maximum operating frequency of the compressor varies under different operating conditions.
  • operating conditions means the indoor environment in which the air conditioning apparatus is located, the outdoor environment, and the operating mode of the air conditioning apparatus.
  • the first preset duration may be any length of time value ranging between 10 and 15 minutes.
  • the first preset duration may be 10 min, 11 min, 12 min, 13 min, 14 min or 15 min.
  • the selection of the first preset duration may depend on the specific type of air conditioning device.
  • the first preset duration may be 15 min.
  • the first preset duration may be 10 min.
  • the specific condition that the compressor is stably operated for the first preset duration under the current operating frequency can be: the first preset duration before the inverter air conditioner is started, and the inverter air conditioner has been set according to other states.
  • the maximum operating frequency runs for the first preset duration, and the fixed-frequency air conditioner operates stably for the first preset duration.
  • the preset temperature difference threshold is matched with a parameter of the air conditioner in a current operating condition, the parameter including an operation mode, an outdoor temperature of an outdoor environment in which the air conditioner is located, and an indoor environment in which the air conditioner is located Room temperature.
  • the air conditioner when the air conditioner operates in the heating mode, the average value of the outdoor temperature and the indoor temperature is larger, and the preset temperature difference threshold is smaller.
  • the air conditioner When the air conditioner is operated in the cooling mode, the average value of the outdoor temperature and the indoor temperature is larger.
  • the preset temperature difference threshold is larger.
  • the relationship between the preset temperature difference threshold and the outdoor temperature and the indoor temperature can be referred to the following table.
  • FIG. 2 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, in accordance with a further embodiment of the present invention.
  • the method of the present invention further includes:
  • step S202 when the absolute value of the difference between the outlet air temperature and the air inlet temperature is less than the preset temperature difference threshold, the operating frequency of the compressor is sequentially increased by adding one unit hertz each time. After each increase of the operating frequency of the compressor, the compressor is stably operated for a second preset duration, and then step S204 is performed: the outlet temperature and the inlet temperature are again acquired, and the absolute value of the difference between the two is calculated.
  • step S206 determining whether the absolute value of the difference between the tuyere temperature and the air inlet temperature is greater than or equal to the preset temperature difference threshold, and if yes, executing step S108, determining that the operating state of the air conditioner is normal, and if not, returning to step S202, Increase the operating frequency of the compressor again.
  • step S208 and step S210 after the number of times the operating frequency of the compressor is increased N times, if the absolute value of the difference between the outlet air temperature and the air inlet temperature is still less than the preset temperature difference threshold, it is determined that the operating state of the air conditioner is abnormal.
  • the inventors of the present invention have recognized that a certain margin is left in designing the maximum operating frequency of the compressor, that is, the actual operating frequency of the compressor can exceed the maximum operating frequency within the margin. Therefore, when the determination method of the present invention first determines that the absolute value of the difference between the tuyere temperature and the air inlet temperature is less than the preset temperature difference threshold, it does not immediately determine that the air conditioner is abnormal, but on the basis of the highest operating frequency. The operation frequency of the compressor is successively increased by adding one unit Hertz, and the operation state of the air conditioner is judged to be normal again in the same manner. This method not only avoids the sudden increase of the actual operating frequency of the compressor, but also avoids judgment errors.
  • each unit Hertz may be 0.5 Hz, 1.0 Hz, or 1.5 Hz.
  • the value of N can be 2, 3, 4 or 5.
  • the second preset duration may be any length of time value ranging between 9 and 11 s.
  • the second preset duration may be 9s, 10s or 11s.
  • the following is an example of a unit hertz of 1.0 Hz, N of 3, and a second preset duration of 10s.
  • the operating frequency of the compressor is increased by 1 Hz on the basis of the highest operating frequency, and after 10s of stable operation, the outlet temperature is again obtained. Air inlet temperature, and calculate and judge whether the absolute value of the difference between the two is greater than or equal to the preset temperature difference threshold. If yes, it determines that the air conditioner is operating normally. If not, then increase the operating frequency of the compressor by 1 Hz.
  • the outlet temperature and the inlet temperature After running for 10s, obtain the outlet temperature and the inlet temperature again, and calculate and judge whether the absolute value of the difference between the two is greater than or equal to the preset temperature difference threshold. If yes, determine that the air conditioner is operating normally. If not, then The operating frequency of the compressor is increased by 1 Hz. After 10 s of stable operation, the outlet temperature and the inlet temperature are again obtained, and the absolute value of the difference between the two is calculated and judged to be greater than or equal to the preset temperature difference threshold. If yes, the air conditioning device is determined. The operating state is normal, if not, it is determined that the operating state of the air conditioning device is abnormal, that is, the amount of refrigerant in the refrigeration system of the air conditioning device is insufficient. Or inadequate.
  • the method of the present invention further includes: step S212, transmitting the abnormality information to the display panel of the air conditioning device to give a prompt message that the air conditioning device is faulty. Therefore, it is convenient for the user to perform maintenance on the air conditioner.
  • FIG. 3 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, according to another further embodiment of the present invention.
  • the method when the air conditioner is an inverter air conditioner, before acquiring the air inlet temperature and the air outlet temperature of the air conditioner, the method further includes determining whether the compressor is allowed to operate at the highest operating frequency under the current working condition.
  • the steps to run, this step includes:
  • Step S302 obtaining an indoor temperature of an indoor environment in which the air conditioner is located;
  • Step S304 calculating a deviation between the indoor temperature and the set temperature of the air conditioner under the current working condition
  • the method of the present invention further includes: performing PID control on the air conditioner when the operating frequency of the compressor is continuously detected to be less than a set frequency lower than the highest operating frequency for a third predetermined period of time.
  • the deviation is 10 times the difference between the set temperature and the indoor temperature; and when the air conditioner operates in the cooling mode, the deviation is the indoor temperature and the set temperature 10 times the difference.
  • the preset deviation threshold may be any temperature value ranging between 0.5 and 0.7 °C.
  • the preset deviation threshold can be 0.5 ° C, 0.6 ° C or 0.7 ° C.
  • the invention also provides an air conditioning device.
  • Fig. 4 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present invention.
  • the air conditioning apparatus 1 of the present invention includes a temperature sensor assembly 10 and a control device 20.
  • the temperature sensor assembly 10 is configured to controllably acquire the air inlet temperature and the air outlet temperature of the air conditioning device after the compressor of the air conditioning device is stably operated for the first predetermined period of time at the highest operating frequency allowed under the current operating conditions.
  • the control device 20 is connected to the temperature sensor assembly 10 to calculate the absolute value of the difference between the air outlet temperature and the air inlet temperature obtained by the temperature sensor assembly 10, and the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than When it is equal to the preset temperature difference threshold, it is determined that the operating state of the air conditioner is normal.
  • the temperature sensor assembly 10 may include an air inlet temperature sensor disposed at an air inlet of the air conditioner 1 for acquiring an air inlet temperature, and an air outlet temperature sensor disposed at an air outlet of the air conditioner 1 for acquiring a tuyere temperature.

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Abstract

An air conditioning device and a method for determining whether an operating status thereof is normal are provided. The method comprises: after a compressor of an air conditioning device has operated stably for a first preset period of time at the maximum operating frequency permitted for a current operating condition, obtaining an air inlet temperature and an air outlet temperature of the air conditioning device; calculating the absolute value of a difference between the air outlet temperature and the air inlet temperature; and determining that an operating status of the air conditioning device is normal if the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than or equal to a preset temperature difference threshold. When the compressor operates stably at the maximum operating frequency, the air outlet temperature directly reflects a heating or cooling effect of the air conditioning device. Therefore, the absolute value of the difference between the air inlet temperature and the air outlet temperature accurately reflects the amount of a refrigerant in a cooling system of the air conditioning device in a timely manner, thereby improving accuracy and timeliness of determination. The air inlet temperature and the air outlet temperature are easily obtained, thereby simplifying an internal structure of the air conditioning device and reducing costs.

Description

空调装置及用于判断其运行状态是否正常的方法Air conditioner and method for judging whether its operating state is normal 技术领域Technical field
本发明涉及常用电器，特别是涉及一种空调装置及用于判断空调装置运行状态是否正常的方法。The invention relates to a common electrical appliance, in particular to an air conditioning device and a method for determining whether the operating state of the air conditioning device is normal.
背景技术Background technique
空调装置在长期运行后，会出现各种异常现象，例如，当空调装置长期运行时，冷媒会逐渐泄漏到空气中去，当冷媒少于一定程度时，整个空调装置的制冷制热效果会直线下降。After long-term operation of the air-conditioning unit, various abnormal phenomena may occur. For example, when the air-conditioning unit is operated for a long period of time, the refrigerant will gradually leak into the air. When the refrigerant is less than a certain degree, the cooling and heating effect of the entire air-conditioning unit will be straight. decline.
目前，常用的冷媒量检测方式有以下几种：At present, the commonly used refrigerant quantity detection methods are as follows:
(1)利用室外环境温度、室外机配管温度和室内机配管温度综合判断冷媒量是否充足；(1) Using the outdoor ambient temperature, the outdoor unit piping temperature, and the indoor unit piping temperature to comprehensively determine whether the amount of refrigerant is sufficient;
(2)利用室内环境温度和室内热交换器温度的差值判断冷媒量是否充足；(2) determining whether the amount of refrigerant is sufficient by using the difference between the indoor ambient temperature and the indoor heat exchanger temperature;
(3)利用压缩机运行前与压缩机运行后的室内机配管温度之差来判断冷媒量是否充足。(3) Determine whether the amount of refrigerant is sufficient by using the difference between the temperature of the indoor unit and the temperature of the indoor unit after the compressor is operated.
上述几种冷媒量检测方式所依据的参数较多或者获取方式复杂，尝尝无法准确或精确地判断出空调装置的冷媒是否出现缺失或不足的情况，甚至还会出现判断错误。另外，上述部分冷媒量检测方式仅适用于定频空调装置，适用范围较窄。The above-mentioned several types of refrigerant quantity detection methods are based on many parameters or complicated acquisition methods, and it is impossible to accurately or accurately determine whether the refrigerant of the air conditioner is missing or insufficient, and even a judgment error may occur. In addition, the above-mentioned partial refrigerant amount detecting method is only applicable to a fixed-frequency air conditioner, and the application range is narrow.
发明内容Summary of the invention
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，提供一种适用范围广、且能够简单精确地判断空调装置运行状态是否正常的方法。An object of the first aspect of the present invention is to overcome at least one of the deficiencies in the prior art, and to provide a method that has a wide range of applications and can easily and accurately determine whether the operating state of the air conditioning apparatus is normal.
本发明第一方面的另一个目的是简化空调装置的内部结构，降低成本。Another object of the first aspect of the present invention is to simplify the internal structure of the air conditioning apparatus and reduce the cost.
本发明第一方面的又一个目的是提高判断的准确性。Still another object of the first aspect of the present invention is to improve the accuracy of the judgment.
本发明第二方面的目的是提供一种空调装置。An object of the second aspect of the present invention is to provide an air conditioning apparatus.
根据本发明的第一方面，本发明提供一种用于判断空调装置运行状态是否正常的方法，包括：According to a first aspect of the present invention, the present invention provides a method for determining whether an air conditioner is operating normally, including:
当所述空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后，获取所述空调装置的进风口温度和出风口温度；Obtaining an air inlet temperature and an air outlet temperature of the air conditioner after the compressor of the air conditioner is stably operated for a first preset period of time at a maximum operating frequency allowed under the current working condition;
计算所述出风口温度与所述进风口温度之差的绝对值；以及Calculating an absolute value of a difference between the air outlet temperature and the air inlet temperature;
当所述出风口温度与所述进风口温度之差的绝对值大于等于预设温差阈值时判定所述空调装置的运行状态正常。When the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than or equal to a preset temperature difference threshold, it is determined that the operating state of the air conditioner is normal.
可选地，所述方法还包括：Optionally, the method further includes:
当所述出风口温度与所述进风口温度之差的绝对值小于所述预设温差阈值时，按照每次增加一个单位赫兹的方式逐次提升所述压缩机的运行频率；When the absolute value of the difference between the air outlet temperature and the air inlet temperature is less than the preset temperature difference threshold, the operating frequency of the compressor is sequentially increased by adding one unit hertz each time;
每提升一次所述压缩机的运行频率后均使得所述压缩机稳定运行第二预设时长，然后再次获取所述出风口温度与所述进风口温度，并计算和判断二者之差的绝对值是否大于等于所述预设温差阈值，若是，则判定所述空调装置的运行状态正常，若否，则再次提升所述压缩机的运行频率；After each lifting of the operating frequency of the compressor, the compressor is stably operated for a second preset period of time, and then the outlet air temperature and the air inlet temperature are acquired again, and the absolute difference between the two is calculated and judged. Whether the value is greater than or equal to the preset temperature difference threshold, and if so, determining that the operating state of the air conditioner is normal; if not, increasing the operating frequency of the compressor again;
当所述压缩机的运行频率提升次数达到N次后，若所述出风口温度与所述进风口温度之差的绝对值仍然小于所述预设温差阈值，则判定所述空调装置的运行状态异常。After the number of times the operating frequency of the compressor is increased N times, if the absolute value of the difference between the air outlet temperature and the air inlet temperature is still less than the preset temperature difference threshold, determining the operating state of the air conditioner abnormal.
可选地，当判定所述空调装置的运行状态异常后，所述方法还包括：Optionally, after determining that the operating state of the air conditioning device is abnormal, the method further includes:
将异常信息传送至所述空调装置的显示面板，以给出所述空调装置存在故障的提示信息。The abnormality information is transmitted to the display panel of the air conditioner to give a prompt information indicating that the air conditioner is faulty.
可选地，每个所述单位赫兹为0.5赫兹、1.0赫兹或1.5赫兹；且Optionally, each of said unit hertz is 0.5 Hz, 1.0 Hz or 1.5 Hz;
N的取值为2、3、4或5。The value of N is 2, 3, 4 or 5.
可选地，所述第一预设时长为范围在10～15min之间的任一时间长度值；且Optionally, the first preset duration is any time length value ranging between 10 and 15 minutes;
所述第二预设时长为范围在9～11s之间的任一时间长度值。The second preset duration is any length of time value ranging between 9 and 11 s.
可选地，当所述空调装置为变频空调时，在获取所述空调装置的进风口温度和出风口温度之前，所述方法还包括判断所述压缩机是否以当前工况下所允许的最高运行频率运行的步骤，该步骤包括：Optionally, when the air conditioner is an inverter air conditioner, before acquiring the air inlet temperature and the air outlet temperature of the air conditioner, the method further includes determining whether the compressor is allowed to be the highest under the current working condition. The step of running the frequency run, which includes:
获取所述空调装置所处室内环境的室内温度；Obtaining an indoor temperature of an indoor environment in which the air conditioner is located;
计算所述室内温度与当前工况下所述空调装置的设定温度之间的偏差；Calculating a deviation between the indoor temperature and a set temperature of the air conditioner under current operating conditions;
当所述偏差大于等于预设偏差阈值时判定所述压缩机以当前工况下所允许的最高运行频率运行。When the deviation is greater than or equal to the preset deviation threshold, it is determined that the compressor is operated at the highest operating frequency allowed under the current operating condition.
可选地，当所述空调装置以制热模式运行时，所述偏差为所述设定温度与所述室内温度之间差值的10倍；且Optionally, when the air conditioner is operated in a heating mode, the deviation is 10 times a difference between the set temperature and the indoor temperature; and
当所述空调装置以制冷模式运行时，所述偏差为所述室内温度与所述设定温度之间差值的10倍。When the air conditioner operates in the cooling mode, the deviation is 10 times the difference between the indoor temperature and the set temperature.
可选地，所述预设温差阈值与所述空调装置在当前工况下的参数相匹配，所述参数包括运行模式、所述空调装置所处的室外环境的室外温度和所处的室内环境的室内温度。Optionally, the preset temperature difference threshold is matched with a parameter of the air conditioner in a current working condition, where the parameter includes an operation mode, an outdoor temperature of an outdoor environment in which the air conditioner is located, and an indoor environment in which the air conditioner is located Indoor temperature.
可选地，当所述空调装置以制热模式运行时，所述室外温度和所述室内温度的平均值越大，所述预设温差阈值越小；且Optionally, when the air conditioner is operated in the heating mode, the average of the outdoor temperature and the indoor temperature is larger, and the preset temperature difference threshold is smaller;
当所述空调装置以制冷模式运行时，所述室外温度和所述室内温度的平均值越大，所述预设温差阈值越大。When the air conditioner is operated in the cooling mode, the larger the average of the outdoor temperature and the indoor temperature, the larger the preset temperature difference threshold.
根据本发明的第二方面，本发明提供一种空调装置，包括：According to a second aspect of the present invention, there is provided an air conditioning apparatus comprising:
温度传感器组件，配置成在所述空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后受控地获取所述空调装置的进风口温度和出风口温度；以及a temperature sensor assembly configured to controlably acquire an air inlet temperature and an air outlet temperature of the air conditioner after the compressor of the air conditioner is stably operated for a first preset period of time at a maximum operating frequency allowed under current operating conditions; as well as
控制装置，与所述温度传感器组件相连，以根据所述温度传感器组件获取的所述出风口温度与所述进风口温度计算二者之差的绝对值，并在所述出风口温度与所述进风口温度之差的绝对值大于等于预设温差阈值时判定所述空调装置的运行状态正常。a control device coupled to the temperature sensor assembly to calculate an absolute value of a difference between the air outlet temperature and the air inlet temperature obtained by the temperature sensor assembly, and at the air outlet temperature and the It is determined that the operating state of the air conditioner is normal when the absolute value of the difference in the air inlet temperature is greater than or equal to the preset temperature difference threshold.
本发明的判断方法利用空调装置的进风口温度与出风口温度之差的绝对值来判断空调装置是否存在冷媒缺失或不足的情况，从而判断空调装置的运行是否正常，出风口温度能够直接反应空调装置的制热制冷效果，且出风口处不会设置用于除霜的电加热或其他会影响气流温度的部件，因此，进风口温度与出风口温度之差的绝对值能够准确及时地反应空调装置的制冷***中冷媒量情况，提高了判断的准确性和及时性。The judging method of the present invention determines whether there is a lack or shortage of refrigerant in the air conditioner by using the absolute value of the difference between the air inlet temperature and the outlet temperature of the air conditioner, thereby determining whether the operation of the air conditioner is normal, and the outlet temperature can directly reflect the air conditioner. The heating and cooling effect of the device, and the electric heating for defrosting or other components that affect the temperature of the airflow are not provided at the air outlet. Therefore, the absolute value of the difference between the temperature of the air inlet and the temperature of the air outlet can accurately and timely reflect the air conditioner. The amount of refrigerant in the refrigeration system of the device improves the accuracy and timeliness of the judgment.
进一步地，进风口温度和出风口温度的获取方式非常简单，直接在进风口和出风口设置温度传感器即可，简化了空调装置的内部结构，降低了成本。Further, the air inlet temperature and the air outlet temperature are obtained in a very simple manner, and the temperature sensor can be directly disposed at the air inlet and the air outlet, which simplifies the internal structure of the air conditioner and reduces the cost.
进一步地，本发明的发明人创造性地意识到当压缩机的运行频率不稳定时，空调装置的出风口温度受到外界影响较大也不稳定，不易将这种状态下的出风口温度作为判断的标准。本发明仅在压缩机以允许的最高运行频率稳定运行一段时间后才获取进风口温度和出风口温度，此时，出风口温度是稳 定的，二者之差的绝对值才能够准确地反应空调装置的制冷***中冷媒量情况，提高了判断的准确性。Further, the inventors of the present invention have creatively realized that when the operating frequency of the compressor is unstable, the temperature of the air outlet of the air conditioner is greatly affected by external influences, and it is difficult to judge the temperature of the air outlet in this state. standard. The invention only obtains the air inlet temperature and the air outlet temperature after the compressor is stably operated for a period of time at the highest operating frequency allowed. At this time, the outlet temperature is stable, and the absolute value of the difference between the two can accurately reflect the air conditioner. The amount of refrigerant in the refrigeration system of the device improves the accuracy of the judgment.
进一步地，本发明的发明人认识到，在设计压缩机的最高运行频率时都会留有一定的余量，也就是说，压缩机的实际运行频率可以在余量范围内超过最高运行频率。因此，本发明的判断方法在首次判断出风口温度与进风口温度之差的绝对值小于预设温差阈值时，并不立即判定空调装置是异常的，而是在最高运行频率的基础上按照每次增加一个单位赫兹的方式逐次提升压缩机的运行频率，并再次按照相同的方式判断空调装置的运行状态是否正常。这种方式不但避免了压缩机的实际运行频率陡增，而且还能够避免判断错误。Further, the inventors of the present invention have recognized that a certain margin is left in designing the maximum operating frequency of the compressor, that is, the actual operating frequency of the compressor can exceed the maximum operating frequency within the margin. Therefore, when the determination method of the present invention first determines that the absolute value of the difference between the tuyere temperature and the air inlet temperature is less than the preset temperature difference threshold, it does not immediately determine that the air conditioner is abnormal, but on the basis of the highest operating frequency. The operation frequency of the compressor is successively increased by adding one unit Hertz, and the operation state of the air conditioner is judged to be normal again in the same manner. This method not only avoids the sudden increase of the actual operating frequency of the compressor, but also avoids judgment errors.
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。The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <
附图说明DRAWINGS
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：Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:
图1是根据本发明一个实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图；1 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to an embodiment of the present invention;
图2是根据本发明一个进一步实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图；2 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to a further embodiment of the present invention;
图3是根据本发明另一个进一步实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图；3 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal according to another further embodiment of the present invention;
图4是根据本发明一个实施例的空调装置的示意性结构图。Fig. 4 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present invention.
具体实施方式Detailed ways
本发明实施例首先提供一种用于判断空调装置运行状态是否正常的方法。图1是根据本发明一个实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图。参见图1，本发明的上述方法包括：The embodiment of the invention first provides a method for determining whether the operating state of the air conditioner is normal. 1 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, according to an embodiment of the present invention. Referring to Figure 1, the above method of the present invention comprises:
步骤S102，当空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后，获取空调装置的进风口温度和出风口温度；Step S102, after the compressor of the air conditioner is stably operated for the first preset period of time at the highest operating frequency allowed under the current working condition, obtaining the air inlet temperature and the outlet temperature of the air conditioner;
步骤S104，计算出风口温度与进风口温度之差的绝对值；以及Step S104, calculating an absolute value of a difference between the tuyere temperature and the air inlet temperature;
步骤S106，判断出风口温度与进风口温度之差的绝对值是否大于等于预设温差阈值，若是则执行步骤S108，也即是，当出风口温度与进风口温度之差的绝对值大于等于预设温差阈值时判定空调装置的运行状态正常。也就是说，此时，空调装置的制冷***中的冷媒量是足够的。Step S106, determining whether the absolute value of the difference between the tuyere temperature and the air inlet temperature is greater than or equal to the preset temperature difference threshold, and if yes, executing step S108, that is, when the absolute value of the difference between the outlet temperature and the inlet temperature is greater than or equal to When the temperature difference threshold is set, it is determined that the operating state of the air conditioner is normal. That is to say, at this time, the amount of refrigerant in the refrigeration system of the air conditioner is sufficient.
本发明的判断方法利用空调装置的进风口温度与出风口温度之差的绝对值来判断空调装置是否存在冷媒缺失或不足的情况，从而判断空调装置的运行是否正常，出风口温度能够直接反应空调装置的制热制冷效果，且出风口处不会设置用于除霜的电加热或其他会影响气流温度的部件，因此，进风口温度与出风口温度之差的绝对值能够准确及时地反应空调装置的制冷***中冷媒量情况，提高了判断的准确性和及时性。The judging method of the present invention determines whether there is a lack or shortage of refrigerant in the air conditioner by using the absolute value of the difference between the air inlet temperature and the outlet temperature of the air conditioner, thereby determining whether the operation of the air conditioner is normal, and the outlet temperature can directly reflect the air conditioner. The heating and cooling effect of the device, and the electric heating for defrosting or other components that affect the temperature of the airflow are not provided at the air outlet. Therefore, the absolute value of the difference between the temperature of the air inlet and the temperature of the air outlet can accurately and timely reflect the air conditioner. The amount of refrigerant in the refrigeration system of the device improves the accuracy and timeliness of the judgment.
进一步地，进风口温度和出风口温度的获取方式非常简单，直接在进风口和出风口设置温度传感器即可，简化了空调装置的内部结构，降低了成本。Further, the air inlet temperature and the air outlet temperature are obtained in a very simple manner, and the temperature sensor can be directly disposed at the air inlet and the air outlet, which simplifies the internal structure of the air conditioner and reduces the cost.
更重要的是，本发明的发明人创造性地意识到当压缩机的运行频率不稳定时，空调装置的出风口温度受到外界影响较大也不稳定，不易将这种状态下的出风口温度作为判断的标准。More importantly, the inventors of the present invention have creatively realized that when the operating frequency of the compressor is unstable, the temperature of the air outlet of the air conditioner is greatly affected by external influences, and it is not easy to use the temperature of the air outlet in this state. The standard of judgment.
本发明仅在压缩机以允许的最高运行频率稳定运行一段时间后才获取进风口温度和出风口温度，此时，出风口温度是稳定的，二者之差的绝对值才能够准确地反应空调装置的制冷***中冷媒量情况，提高了判断的准确性。The invention only obtains the air inlet temperature and the air outlet temperature after the compressor is stably operated for a period of time at the highest operating frequency allowed. At this time, the outlet temperature is stable, and the absolute value of the difference between the two can accurately reflect the air conditioner. The amount of refrigerant in the refrigeration system of the device improves the accuracy of the judgment.
具体地，在不同的工况下，压缩机的最高运行频率有所不同。本发明所称的“工况”意指空调装置所处的室内环境、室外环境以及空调装置的运行模式。Specifically, the maximum operating frequency of the compressor varies under different operating conditions. The term "operating conditions" as used in the present invention means the indoor environment in which the air conditioning apparatus is located, the outdoor environment, and the operating mode of the air conditioning apparatus.
进一步地，第一预设时长可以为范围在10～15min之间的任一时间长度值。例如，第一预设时长可以为10min、11min、12min、13min、14min或15min。第一预设时长的选择可以依据空调装置的具体类型。Further, the first preset duration may be any length of time value ranging between 10 and 15 minutes. For example, the first preset duration may be 10 min, 11 min, 12 min, 13 min, 14 min or 15 min. The selection of the first preset duration may depend on the specific type of air conditioning device.
例如，当空调装置为特定型号的变频空调时，第一预设时长可以为15min。当空调装置为特定型号的定频空调时，第一预设时长可以为10min。For example, when the air conditioner is a specific type of inverter air conditioner, the first preset duration may be 15 min. When the air conditioner is a fixed air conditioner of a specific model, the first preset duration may be 10 min.
压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长的具体情况可以为：变频空调启动后运行的前第一预设时长、变频空调在其他状态下已按照设定的最高运行频率运行第一预设时长、定频空调稳定运行第一预设时长。The specific condition that the compressor is stably operated for the first preset duration under the current operating frequency can be: the first preset duration before the inverter air conditioner is started, and the inverter air conditioner has been set according to other states. The maximum operating frequency runs for the first preset duration, and the fixed-frequency air conditioner operates stably for the first preset duration.
在本发明的一些实施例中，上述预设温差阈值与空调装置在当前工况下的参数相匹配，该参数包括运行模式、空调装置所处的室外环境的室外温度和所处的室内环境的室内温度。In some embodiments of the present invention, the preset temperature difference threshold is matched with a parameter of the air conditioner in a current operating condition, the parameter including an operation mode, an outdoor temperature of an outdoor environment in which the air conditioner is located, and an indoor environment in which the air conditioner is located Room temperature.
进一步地，当空调装置以制热模式运行时，室外温度和室内温度的平均值越大，预设温差阈值越小，当空调装置以制冷模式运行时，室外温度和室内温度的平均值越大，预设温差阈值越大。Further, when the air conditioner operates in the heating mode, the average value of the outdoor temperature and the indoor temperature is larger, and the preset temperature difference threshold is smaller. When the air conditioner is operated in the cooling mode, the average value of the outdoor temperature and the indoor temperature is larger. The preset temperature difference threshold is larger.
具体地，在一个具体的实施例中，预设温差阈值与室外温度和室内温度之间的关系可参见下表。Specifically, in a specific embodiment, the relationship between the preset temperature difference threshold and the outdoor temperature and the indoor temperature can be referred to the following table.
Figure PCTCN2018119399-appb-000001
Figure PCTCN2018119399-appb-000001
图2是根据本发明一个进一步实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图。在本发明的一些实施例中，参见图2，本发明的方法还包括：2 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, in accordance with a further embodiment of the present invention. In some embodiments of the present invention, referring to FIG. 2, the method of the present invention further includes:
步骤S202，当出风口温度与进风口温度之差的绝对值小于预设温差阈值时，按照每次增加一个单位赫兹的方式逐次提升压缩机的运行频率。每提升一次压缩机的运行频率后均使得压缩机稳定运行第二预设时长，然后再执行步骤S204：再次获取出风口温度与进风口温度，并计算二者之差的绝对值。以及执行步骤S206，判断出风口温度与进风口温度之差的绝对值是否大于等于预设温差阈值，若是，则执行步骤S108，判定空调装置的运行状态正常，若否，则返回执行步骤S202，再次提升压缩机的运行频率。步骤 S208和步骤S210，当压缩机的运行频率提升次数达到N次后，若出风口温度与进风口温度之差的绝对值仍然小于预设温差阈值，则判定空调装置的运行状态异常。In step S202, when the absolute value of the difference between the outlet air temperature and the air inlet temperature is less than the preset temperature difference threshold, the operating frequency of the compressor is sequentially increased by adding one unit hertz each time. After each increase of the operating frequency of the compressor, the compressor is stably operated for a second preset duration, and then step S204 is performed: the outlet temperature and the inlet temperature are again acquired, and the absolute value of the difference between the two is calculated. And executing step S206, determining whether the absolute value of the difference between the tuyere temperature and the air inlet temperature is greater than or equal to the preset temperature difference threshold, and if yes, executing step S108, determining that the operating state of the air conditioner is normal, and if not, returning to step S202, Increase the operating frequency of the compressor again. Step S208 and step S210, after the number of times the operating frequency of the compressor is increased N times, if the absolute value of the difference between the outlet air temperature and the air inlet temperature is still less than the preset temperature difference threshold, it is determined that the operating state of the air conditioner is abnormal.
本发明的发明人认识到，在设计压缩机的最高运行频率时都会留有一定的余量，也就是说，压缩机的实际运行频率可以在余量范围内超过最高运行频率。因此，本发明的判断方法在首次判断出风口温度与进风口温度之差的绝对值小于预设温差阈值时，并不立即判定空调装置是异常的，而是在最高运行频率的基础上按照每次增加一个单位赫兹的方式逐次提升压缩机的运行频率，并再次按照相同的方式判断空调装置的运行状态是否正常。这种方式不但避免了压缩机的实际运行频率陡增，而且还能够避免判断错误。The inventors of the present invention have recognized that a certain margin is left in designing the maximum operating frequency of the compressor, that is, the actual operating frequency of the compressor can exceed the maximum operating frequency within the margin. Therefore, when the determination method of the present invention first determines that the absolute value of the difference between the tuyere temperature and the air inlet temperature is less than the preset temperature difference threshold, it does not immediately determine that the air conditioner is abnormal, but on the basis of the highest operating frequency. The operation frequency of the compressor is successively increased by adding one unit Hertz, and the operation state of the air conditioner is judged to be normal again in the same manner. This method not only avoids the sudden increase of the actual operating frequency of the compressor, but also avoids judgment errors.
具体地，每个单位赫兹可以为0.5赫兹、1.0赫兹或1.5赫兹。N的取值可以为2、3、4或5。第二预设时长可以为范围在9～11s之间的任一时间长度值。例如，第二预设时长可以为9s、10s或11s。Specifically, each unit Hertz may be 0.5 Hz, 1.0 Hz, or 1.5 Hz. The value of N can be 2, 3, 4 or 5. The second preset duration may be any length of time value ranging between 9 and 11 s. For example, the second preset duration may be 9s, 10s or 11s.
下面以单位赫兹为1.0赫兹、N为3、第二预设时长我10s为例进行具体说明。在首次判断出风口温度与进风口温度之差的绝对值小于预设温差阈值时，在最高运行频率的基础上将压缩机的运行频率提升1赫兹，稳定运行10s后，再次获取出风口温度与进风口温度，并计算和判断二者之差的绝对值是否大于等于预设温差阈值，若是，则判定空调装置的运行状态正常，若否，则再将压缩机的运行频率提升1赫兹，稳定运行10s后，再次获取出风口温度与进风口温度，并计算和判断二者之差的绝对值是否大于等于预设温差阈值，若是，则判定空调装置的运行状态正常，若否，则再将压缩机的运行频率提升1赫兹，稳定运行10s后，再次获取出风口温度与进风口温度，并计算和判断二者之差的绝对值是否大于等于预设温差阈值，若是，则判定空调装置的运行状态正常，若否，则判定空调装置的运行状态异常，即空调装置的制冷***中冷媒量缺失或不足。The following is an example of a unit hertz of 1.0 Hz, N of 3, and a second preset duration of 10s. When it is judged for the first time that the absolute value of the difference between the tuyere temperature and the inlet air temperature is less than the preset temperature difference threshold, the operating frequency of the compressor is increased by 1 Hz on the basis of the highest operating frequency, and after 10s of stable operation, the outlet temperature is again obtained. Air inlet temperature, and calculate and judge whether the absolute value of the difference between the two is greater than or equal to the preset temperature difference threshold. If yes, it determines that the air conditioner is operating normally. If not, then increase the operating frequency of the compressor by 1 Hz. After running for 10s, obtain the outlet temperature and the inlet temperature again, and calculate and judge whether the absolute value of the difference between the two is greater than or equal to the preset temperature difference threshold. If yes, determine that the air conditioner is operating normally. If not, then The operating frequency of the compressor is increased by 1 Hz. After 10 s of stable operation, the outlet temperature and the inlet temperature are again obtained, and the absolute value of the difference between the two is calculated and judged to be greater than or equal to the preset temperature difference threshold. If yes, the air conditioning device is determined. The operating state is normal, if not, it is determined that the operating state of the air conditioning device is abnormal, that is, the amount of refrigerant in the refrigeration system of the air conditioning device is insufficient. Or inadequate.
在本发明的一些实施例中，当判定空调装置的运行状态异常后，本发明的方法还包括：步骤S212，将异常信息传送至空调装置的显示面板，以给出空调装置存在故障的提示信息，从而便于用户对空调装置进行维修。In some embodiments of the present invention, after determining that the operating state of the air conditioning device is abnormal, the method of the present invention further includes: step S212, transmitting the abnormality information to the display panel of the air conditioning device to give a prompt message that the air conditioning device is faulty. Therefore, it is convenient for the user to perform maintenance on the air conditioner.
图3是根据本发明另一个进一步实施例的用于判断空调装置运行状态是否正常的方法的示意性流程图。在本发明的一些实施例中，当空调装置为变频空调时，在获取空调装置的进风口温度和出风口温度之前，该方法还包括 判断压缩机是否以当前工况下所允许的最高运行频率运行的步骤，该步骤包括：3 is a schematic flow chart of a method for determining whether an air conditioner operating state is normal, according to another further embodiment of the present invention. In some embodiments of the present invention, when the air conditioner is an inverter air conditioner, before acquiring the air inlet temperature and the air outlet temperature of the air conditioner, the method further includes determining whether the compressor is allowed to operate at the highest operating frequency under the current working condition. The steps to run, this step includes:
步骤S302，获取空调装置所处室内环境的室内温度；Step S302, obtaining an indoor temperature of an indoor environment in which the air conditioner is located;
步骤S304，计算室内温度与当前工况下空调装置的设定温度之间的偏差；以及Step S304, calculating a deviation between the indoor temperature and the set temperature of the air conditioner under the current working condition;
步骤S306和步骤S308，当偏差大于等于预设偏差阈值时判定压缩机以当前工况下所允许的最高运行频率运行。Step S306 and step S308, when the deviation is greater than or equal to the preset deviation threshold, it is determined that the compressor operates at the highest operating frequency allowed under the current working condition.
也就是说，当空调装置为变频空调时，需要预先判断压缩机是否以设定的最高运行频率运行，只有在压缩机以设定的最高运行频率运行时，空调装置运行状态是否正常的判断才是有效的。本发明的方法还包括：当在第三预设时长内持续检测到压缩机的运行频率小于低于最高运行频率的设定频率时，则对空调装置进行PID控制。That is to say, when the air conditioner is an inverter air conditioner, it is necessary to determine in advance whether the compressor operates at the set maximum operating frequency, and only when the compressor is operated at the set maximum operating frequency, whether the air conditioner is in a normal operating state is judged. It's effective. The method of the present invention further includes: performing PID control on the air conditioner when the operating frequency of the compressor is continuously detected to be less than a set frequency lower than the highest operating frequency for a third predetermined period of time.
进一步地，当空调装置以制热模式运行时，上述偏差为设定温度与室内温度之间差值的10倍；且当空调装置以制冷模式运行时，上述偏差为室内温度与设定温度之间差值的10倍。Further, when the air conditioner operates in the heating mode, the deviation is 10 times the difference between the set temperature and the indoor temperature; and when the air conditioner operates in the cooling mode, the deviation is the indoor temperature and the set temperature 10 times the difference.
具体地，上述预设偏差阈值可以为范围在0.5～0.7℃之间的任一温度值。例如，预设偏差阈值可以为0.5℃、0.6℃或0.7℃。Specifically, the preset deviation threshold may be any temperature value ranging between 0.5 and 0.7 °C. For example, the preset deviation threshold can be 0.5 ° C, 0.6 ° C or 0.7 ° C.
本发明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图。本发明的空调装置1包括温度传感器组件10和控制装置20。温度传感器组件10配置成在空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后受控地获取空调装置的进风口温度和出风口温度。控制装20，与温度传感器组件10相连，以根据温度传感器组件10获取的出风口温度与进风口温度计算二者之差的绝对值，并在出风口温度与进风口温度之差的绝对值大于等于预设温差阈值时判定空调装置的运行状态正常。The invention also provides an air conditioning device. Fig. 4 is a schematic structural view of an air conditioning apparatus according to an embodiment of the present invention. The air conditioning apparatus 1 of the present invention includes a temperature sensor assembly 10 and a control device 20. The temperature sensor assembly 10 is configured to controllably acquire the air inlet temperature and the air outlet temperature of the air conditioning device after the compressor of the air conditioning device is stably operated for the first predetermined period of time at the highest operating frequency allowed under the current operating conditions. The control device 20 is connected to the temperature sensor assembly 10 to calculate the absolute value of the difference between the air outlet temperature and the air inlet temperature obtained by the temperature sensor assembly 10, and the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than When it is equal to the preset temperature difference threshold, it is determined that the operating state of the air conditioner is normal.
温度传感器组件10可以包括设置于空调装置1的进风口处以用于获取进风口温度的进风口温度传感器和设置于空调装置1的出风口处以用于获取出风口温度的出风口温度传感器。The temperature sensor assembly 10 may include an air inlet temperature sensor disposed at an air inlet of the air conditioner 1 for acquiring an air inlet temperature, and an air outlet temperature sensor disposed at an air outlet of the air conditioner 1 for acquiring a tuyere temperature.
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。In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims (10)

  1. 一种用于判断空调装置运行状态是否正常的方法，其特征在于，包括：A method for determining whether a running state of an air conditioner is normal, comprising:
    当所述空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后，获取所述空调装置的进风口温度和出风口温度；Obtaining an air inlet temperature and an air outlet temperature of the air conditioner after the compressor of the air conditioner is stably operated for a first preset period of time at a maximum operating frequency allowed under the current working condition;
    计算所述出风口温度与所述进风口温度之差的绝对值；以及Calculating an absolute value of a difference between the air outlet temperature and the air inlet temperature;
    当所述出风口温度与所述进风口温度之差的绝对值大于等于预设温差阈值时判定所述空调装置的运行状态正常。When the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than or equal to a preset temperature difference threshold, it is determined that the operating state of the air conditioner is normal.
  2. 根据权利要求1所述的方法，其特征在于，还包括：The method of claim 1 further comprising:
    当所述出风口温度与所述进风口温度之差的绝对值小于所述预设温差阈值时，按照每次增加一个单位赫兹的方式逐次提升所述压缩机的运行频率；When the absolute value of the difference between the air outlet temperature and the air inlet temperature is less than the preset temperature difference threshold, the operating frequency of the compressor is sequentially increased by adding one unit hertz each time;
    每提升一次所述压缩机的运行频率后均使得所述压缩机稳定运行第二预设时长，然后再次获取所述出风口温度与所述进风口温度，并计算和判断二者之差的绝对值是否大于等于所述预设温差阈值，若是，则判定所述空调装置的运行状态正常，若否，则再次提升所述压缩机的运行频率；After each lifting of the operating frequency of the compressor, the compressor is stably operated for a second preset period of time, and then the outlet air temperature and the air inlet temperature are acquired again, and the absolute difference between the two is calculated and judged. Whether the value is greater than or equal to the preset temperature difference threshold, and if so, determining that the operating state of the air conditioner is normal; if not, increasing the operating frequency of the compressor again;
    当所述压缩机的运行频率提升次数达到N次后，若所述出风口温度与所述进风口温度之差的绝对值仍然小于所述预设温差阈值，则判定所述空调装置的运行状态异常。After the number of times the operating frequency of the compressor is increased N times, if the absolute value of the difference between the air outlet temperature and the air inlet temperature is still less than the preset temperature difference threshold, determining the operating state of the air conditioner abnormal.
  3. 根据权利要求2所述的方法，其特征在于，当判定所述空调装置的运行状态异常后，所述方法还包括：The method according to claim 2, wherein after determining that the operating state of the air conditioning device is abnormal, the method further comprises:
    将异常信息传送至所述空调装置的显示面板，以给出所述空调装置存在故障的提示信息。The abnormality information is transmitted to the display panel of the air conditioner to give a prompt information indicating that the air conditioner is faulty.
  4. 根据权利要求2所述的方法，其特征在于，The method of claim 2 wherein:
    每个所述单位赫兹为0.5赫兹、1.0赫兹或1.5赫兹；且Each of said unit Hertz is 0.5 Hz, 1.0 Hz or 1.5 Hz;
    N的取值为2、3、4或5。The value of N is 2, 3, 4 or 5.
  5. 根据权利要求2所述的方法，其特征在于，The method of claim 2 wherein:
    所述第一预设时长为范围在10～15min之间的任一时间长度值；且The first preset duration is any length of time ranging from 10 to 15 minutes; and
    所述第二预设时长为范围在9～11s之间的任一时间长度值。The second preset duration is any length of time value ranging between 9 and 11 s.
  6. 根据权利要求1所述的方法，其特征在于，当所述空调装置为变频空调时，在获取所述空调装置的进风口温度和出风口温度之前，所述方法还包括判断所述压缩机是否以当前工况下所允许的最高运行频率运行的步骤，该 步骤包括：The method according to claim 1, wherein when the air conditioner is an inverter air conditioner, before acquiring the air inlet temperature and the air outlet temperature of the air conditioner, the method further comprises determining whether the compressor is The step of running at the highest operating frequency allowed under the current operating conditions, which includes:
    获取所述空调装置所处室内环境的室内温度；Obtaining an indoor temperature of an indoor environment in which the air conditioner is located;
    计算所述室内温度与当前工况下所述空调装置的设定温度之间的偏差；Calculating a deviation between the indoor temperature and a set temperature of the air conditioner under current operating conditions;
    当所述偏差大于等于预设偏差阈值时判定所述压缩机以当前工况下所允许的最高运行频率运行。When the deviation is greater than or equal to the preset deviation threshold, it is determined that the compressor is operated at the highest operating frequency allowed under the current operating condition.
  7. 根据权利要求6所述的方法，其特征在于，The method of claim 6 wherein:
    当所述空调装置以制热模式运行时，所述偏差为所述设定温度与所述室内温度之间差值的10倍；且When the air conditioner is operated in a heating mode, the deviation is 10 times a difference between the set temperature and the indoor temperature; and
    当所述空调装置以制冷模式运行时，所述偏差为所述室内温度与所述设定温度之间差值的10倍。When the air conditioner operates in the cooling mode, the deviation is 10 times the difference between the indoor temperature and the set temperature.
  8. 根据权利要求1所述的方法，其特征在于，The method of claim 1 wherein
    所述预设温差阈值与所述空调装置在当前工况下的参数相匹配，所述参数包括运行模式、所述空调装置所处的室外环境的室外温度和所处的室内环境的室内温度。The preset temperature difference threshold is matched with a parameter of the air conditioner under current operating conditions, the parameter including an operation mode, an outdoor temperature of an outdoor environment in which the air conditioner is located, and an indoor temperature of the indoor environment in which the air conditioner is located.
  9. 根据权利要求8所述的方法，其特征在于，The method of claim 8 wherein:
    当所述空调装置以制热模式运行时，所述室外温度和所述室内温度的平均值越大，所述预设温差阈值越小；且When the air conditioner is operated in the heating mode, the larger the average of the outdoor temperature and the indoor temperature, the smaller the preset temperature difference threshold is;
    当所述空调装置以制冷模式运行时，所述室外温度和所述室内温度的平均值越大，所述预设温差阈值越大。When the air conditioner is operated in the cooling mode, the larger the average of the outdoor temperature and the indoor temperature, the larger the preset temperature difference threshold.
  10. 一种空调装置，其特征在于，包括：An air conditioning device, comprising:
    温度传感器组件，配置成在所述空调装置的压缩机以当前工况下所允许的最高运行频率稳定运行第一预设时长后受控地获取所述空调装置的进风口温度和出风口温度；以及a temperature sensor assembly configured to controlably acquire an air inlet temperature and an air outlet temperature of the air conditioner after the compressor of the air conditioner is stably operated for a first preset period of time at a maximum operating frequency allowed under current operating conditions; as well as
    控制装置，与所述温度传感器组件相连，以根据所述温度传感器组件获取的所述出风口温度与所述进风口温度计算二者之差的绝对值，并在所述出风口温度与所述进风口温度之差的绝对值大于等于预设温差阈值时判定所述空调装置的运行状态正常。a control device coupled to the temperature sensor assembly to calculate an absolute value of a difference between the air outlet temperature and the air inlet temperature obtained by the temperature sensor assembly, and at the air outlet temperature and the It is determined that the operating state of the air conditioner is normal when the absolute value of the difference in the air inlet temperature is greater than or equal to the preset temperature difference threshold.
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CN106524418A (en) * 2016-11-10 2017-03-22 邯郸美的制冷设备有限公司 Air conditioner refrigerant leakage detecting method and detecting system and air conditioner
CN108168044A (en) * 2017-12-07 2018-06-15 青岛海尔空调器有限总公司 Air-conditioning device and for judging the whether normal method of its operating status

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