WO2020133845A1 - 空调器及其控制方法 - Google Patents

空调器及其控制方法 Download PDF

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Publication number
WO2020133845A1
WO2020133845A1 PCT/CN2019/084191 CN2019084191W WO2020133845A1 WO 2020133845 A1 WO2020133845 A1 WO 2020133845A1 CN 2019084191 W CN2019084191 W CN 2019084191W WO 2020133845 A1 WO2020133845 A1 WO 2020133845A1
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Prior art keywords
temperature
wind deflector
air
opening
preset
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PCT/CN2019/084191
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English (en)
French (fr)
Inventor
鞠龙家
张飞
陆建松
李淑云
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青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2020133845A1 publication Critical patent/WO2020133845A1/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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate

Definitions

  • the present application belongs to the technical field of air conditioners, and for example, relates to an air conditioner and a control method thereof.
  • the air circulation method is: the air in the indoor space enters the indoor unit from the air inlet of the indoor unit for convection heat exchange, and the cooled low-temperature air is blown out from the air outlet after heat exchange.
  • condensed water usually occurs on the surface of the wind deflector. If there is a lot of condensed water and dripping occurs, it will cause a poor user experience.
  • the patent discloses a wind deflector structure, including a wind deflector body, an accommodation cavity is provided inside the wind deflector body, and a heating device is provided inside the accommodation cavity, The panel body is heated to avoid condensation on the surface of the wind deflector body.
  • a heating device is provided inside the accommodation cavity, The panel body is heated to avoid condensation on the surface of the wind deflector body.
  • the present disclosure provides an air conditioner
  • the control method of the compressor includes: when the air conditioner is in the cooling operation and the wind deflector is in the up blowing position, comparing the operating frequency of the compressor with the preset frequency; according to the comparison result, selectivity Increase the opening of the wind deflector.
  • the selectively increasing the opening of the wind deflector according to the comparison result includes: when the operating frequency of the compressor is greater than a preset frequency, acquiring the current The first indoor ambient temperature and the second indoor ambient temperature after the first set duration; according to the difference between the first indoor ambient temperature and the second indoor ambient temperature, selectively increase the Opening degree.
  • the selectively increasing the opening of the wind deflector according to the difference between the first indoor ambient temperature and the second indoor ambient temperature includes: In the case where the value is greater than the preset difference, the wind deflector is continuously placed in the upward blowing position.
  • the selectively increasing the opening of the wind deflector according to the difference between the first indoor ambient temperature and the second indoor ambient temperature includes: When the value is less than or equal to the preset difference, obtain the current first exhaust temperature of the compressor; compare the size of the first exhaust temperature with the preset temperature, and selectively increase the guide according to the comparison result The opening of the wind plate.
  • the preset temperature includes a first preset temperature
  • selectively increasing the opening of the wind deflector according to the comparison result includes: if the first exhaust temperature is greater than The first preset temperature increases the opening of the wind deflector.
  • the preset temperature includes a second preset temperature
  • selectively increasing the opening of the wind deflector according to the comparison result includes: if the first exhaust temperature is less than Equal to the first preset temperature and greater than the second preset temperature, increase the opening of the expansion valve and then selectively increase the opening of the wind deflector; if the first exhaust temperature is less than or equal to The second preset temperature keeps the wind deflector in the up blowing position; wherein the second preset temperature is less than the first preset temperature.
  • the increasing the opening degree of the expansion valve to selectively increase the opening degree of the wind deflector includes: after increasing the opening degree of the expansion valve by a second set duration To obtain the current second exhaust temperature of the compressor; compare the second exhaust temperature with the preset temperature, and selectively increase the opening degree of the wind deflector according to the comparison result.
  • the comparing the size of the second exhaust temperature with the preset temperature, and selectively increasing the opening of the wind deflector according to the comparison result includes: if the second If the exhaust temperature is greater than the first preset temperature, increase the opening of the wind deflector to the first opening; if the second exhaust temperature is less than or equal to the first preset temperature and greater than the first Two preset temperatures increase the opening degree of the wind deflector to a second opening degree; wherein, the first opening degree and the second opening degree are the same or different.
  • the comparing the size of the second exhaust temperature with the preset temperature, and selectively increasing the opening of the wind deflector according to the comparison result includes: if the second If the temperature of the exhaust gas is less than or equal to the second preset temperature, the wind deflector is continuously in the upward blowing position.
  • the cooling capacity of the air conditioner is large, the temperature of the airflow blown out of the air outlet is low, the air deflector is in the upward blowing position, and the low temperature airflow blows to the air deflector to make the air guide
  • the air plate has a lower temperature, and the temperature of the air guide plate is lower than the dew point of the indoor air and a large amount of condensation is likely to occur.
  • the opening of the air deflector by increasing the opening of the air deflector, the air flow to the air deflector is reduced, and the air output at the air outlet is increased, which increases the temperature of the air outlet to a certain extent, thereby avoiding the air guide.
  • the temperature of the wind plate is too low and a large amount of condensation occurs on its surface.
  • the control method is used to prevent condensation on the surface of the air deflector, without the need to improve the structure of the air conditioner, reducing the production cost of the air conditioner, and solving the problem of the existing air conditioner by setting a heating device on the air deflector to prevent condensation.
  • the technical solution has the problem of high production cost.
  • the operating frequency of the compressor in the case where the operating frequency of the compressor is greater than the preset frequency, the current first indoor ambient temperature and the second indoor ambient temperature after the first set duration are acquired, and the first indoor ambient temperature The difference from the ambient temperature in the second room selectively increases the opening of the wind deflector.
  • the wind deflector is continuously maintained at the upward blowing position.
  • the operating frequency of the compressor is greater than the preset frequency
  • the indoor ambient temperature decreases after the first set time period is large, it means that the indoor space is tightly closed, outdoor air cannot enter the room, and the indoor environment humidity will not be generated. Affect, and the indoor environment temperature drops greatly, the indoor environment humidity relatively decreases, in this case, the surface of the wind deflector will not produce condensation. At this time, keeping the wind deflector continuously in the upward blowing position can avoid frequent adjustment of the opening degree of the wind deflector and optimize the user experience.
  • the present disclosure also provides an air conditioner, the air conditioner including a controller for performing the control method described in any one of the above. It should be noted that this air conditioner has all the technical effects of the control method of the above air conditioner, which will not be repeated here.
  • FIG. 1 is a flowchart of a control method of a wall-mounted air conditioner of the present disclosure
  • FIG. 2 is a logic schematic diagram of a control method of a wall-mounted air conditioner according to an embodiment of the present disclosure.
  • Wall-mounted air conditioners mainly include outdoor units and indoor units.
  • Indoor units are equipped with indoor heat exchangers, indoor fans, controllers, etc.
  • outdoor units are equipped with compressors, expansion valves, outdoor fans and Outdoor heat exchangers, etc.
  • the air conditioner works in the cooling mode, the surface of the wind deflector is prone to a large amount of condensation and dripping occurs, which greatly affects the user's experience.
  • FIG. 1 is a flowchart of a control method of a wall-mounted air conditioner of the present disclosure.
  • the control method of the air conditioner of the present disclosure includes:
  • the user sets the wind deflector to be in the up-blowing position.
  • the controller obtains the operating frequency of the compressor and compares it with the preset frequency. If the operating frequency of the compressor is greater than the preset frequency, the air deflector is controlled to pivot downward to increase the opening of the air deflector. At this time, the air output of the air outlet of the indoor unit increases, and the The low-temperature airflow on the wind deflector is reduced, which avoids the phenomenon that the temperature of the wind deflector is too low to cause condensation on the surface of the wind deflector and drip in the room, which optimizes the user experience.
  • the controller keeps the air deflector continuously in the upward blowing position, so that the low-temperature airflow blows to the upper part of the indoor space and gradually mixes with the air in the lower part of the indoor space to make the indoor air
  • the temperature is evenly reduced, and at the same time, the wind deflector is directly blown to the user to create discomfort.
  • increasing the opening of the wind deflector is only to increase the opening in a smaller range based on the blowing position of the wind deflector, such as the wind deflector rotating around the pivot axis by 3°, 5°, 8° Wait, while avoiding condensation, and avoid the air outlet blowing directly to the user.
  • This control method avoids condensation on the air deflector during cooling operation of the air conditioner, optimizing the user experience; there is no need to improve the structure of the air conditioner, reducing the production cost of the air conditioner and solving the existing air conditioner
  • the technical solution of the device for preventing condensation by providing a heating device on the wind deflector has a problem of high production cost.
  • the air outlet of the indoor unit is prevented from directly blowing the user, which improves comfort.
  • the control method of the present disclosure prevents condensation from occurring by increasing the opening degree of the wind deflector to avoid The loss of cooling capacity of the air conditioner.
  • the angle of the wind deflector may not be directly increased, such as obtaining the indoor ambient temperature or the amount of change in the indoor ambient temperature, etc., depending on the indoor environment The amount of change in temperature or indoor ambient temperature selectively increases the angle of the wind deflector.
  • FIG. 2 is a logic schematic diagram of a control method of a wall-mounted air conditioner according to an embodiment of the present disclosure.
  • step S200 includes: in a case where the operating frequency of the compressor is greater than a preset frequency, acquiring the current first indoor environmental temperature and the second indoor environmental temperature after the first set duration, according to the first indoor environment The difference between the temperature and the ambient temperature of the second room selectively increases the opening of the wind deflector. If the difference between the first indoor environment temperature and the second indoor environment temperature is greater than the preset difference, keep the wind deflector in the up-blowing position; the difference between the first indoor environment temperature and the second indoor environment temperature In the case of less than or equal to the preset difference, increase the opening of the wind deflector.
  • the temperature sensor on the indoor unit of the air conditioner acquires the current first indoor ambient temperature of 33°C, and the air conditioner operates according to the current operating parameters for the first set duration of 5 minutes.
  • the sensor obtains that the current second indoor environment temperature is 29°C, and the difference between the first indoor environment temperature and the second indoor environment temperature is 4°C.
  • the difference between the first indoor environment temperature and the second indoor environment temperature is greater than the preset value
  • the difference is 3°C.
  • the temperature of the indoor environment is reduced, the humidity of the indoor air is relatively reduced, and there is no more condensation on the surface of the wind deflector.
  • the wind deflector continues to be in the upward blowing position without increasing the opening of the wind deflector, avoiding frequent adjustment of the opening of the wind deflector and optimizing the user experience.
  • the temperature sensor on the indoor unit of the air conditioner acquires the current first indoor ambient temperature of 33°C, and the air conditioner operates the first setting according to the current operating parameters After a duration of 5 minutes, the temperature sensor acquires the current second indoor ambient temperature of 31 °C, the difference between the first indoor ambient temperature and the second indoor ambient temperature is 2 °C, at this time, the difference between the first indoor ambient temperature and the second indoor ambient temperature The difference is less than the preset difference (3°C).
  • the outdoor air can enter the room, so that the humidity of the indoor air is maintained at a high level. In this case, condensation will occur on the surface of the air deflector, which can increase the opening of the air deflector. Avoid condensation on the surface of the wind deflector.
  • the first indoor ambient temperature is 33°C
  • the second indoor ambient temperature is 29°C or 31°C
  • the preset difference is 3°C
  • the first set duration is 5 min, etc.
  • the first indoor environment temperature can be 34°C, 32°C, 30°C, etc. according to the actual measurement.
  • the second indoor environment The temperature may be 33°C, 30°C, 25°C, etc.
  • the preset difference may be 2°C, 4°C, 5°C, etc.
  • the first set duration may be 3min, 8min, 10min, etc.
  • the current first exhaust temperature of the compressor is obtained, and the first exhaust temperature is compared According to the comparison with the preset temperature, the opening degree of the wind deflector is selectively increased according to the comparison result.
  • the preset temperature includes a first preset temperature and a second preset temperature, where the second preset temperature is less than the first preset temperature.
  • the difference between the first indoor ambient temperature and the second indoor ambient temperature is greater than the preset difference, obtain the first exhaust temperature of the compressor, and compare the first exhaust temperature with the first preset temperature and the second The size of the preset temperature.
  • first exhaust temperature is greater than the first preset temperature, increase the opening of the air deflector; if the first exhaust temperature is less than or equal to the second preset temperature, keep the air deflector continuously in the up blowing position; if the first An exhaust temperature is less than or equal to the first preset temperature and greater than the second preset temperature, then the opening degree of the expansion valve is increased and then the opening degree of the wind deflector is selectively increased.
  • the first exhaust temperature of the compressor When the first exhaust temperature of the compressor is high, it means that the compression ratio of the air conditioner compressor is relatively large, and the cooling capacity of the air conditioner is strong. At this time, the air outlet temperature is low, and condensation is likely to occur on the surface of the air deflector.
  • the size of the first exhaust temperature of the compressor With the preset temperature, and selectively increasing the wind deflector according to the comparison result, it can be determined more accurately whether the wind deflector will produce condensation at this time.
  • the compression ratio of the compressor By increasing the valve opening, the compression ratio of the compressor is reduced, so that the temperature of the air-conditioning outlet is relatively reduced, thereby avoiding the occurrence of condensation.
  • the preset temperature may include only the first preset temperature, if the first exhaust temperature is greater than the first preset temperature, the opening degree of the air deflector is increased; if the first exhaust temperature If it is less than or equal to the first preset temperature, the wind deflector is continuously in the upward blowing position.
  • other suitable control can also be performed according to the size of the first exhaust temperature and the first preset temperature.
  • the step of "selectively increasing the opening of the air deflector after increasing the opening of the expansion valve” includes: after increasing the opening of the expansion valve for a second set duration, acquiring the compressor The current second exhaust temperature; comparing the size of the second exhaust temperature with the preset temperature, and selectively increasing the opening of the wind deflector according to the comparison result.
  • the current second exhaust temperature of the compressor is obtained, and if the second exhaust temperature is greater than the first preset temperature, the wind guide is increased The opening of the panel to the first opening; if the second exhaust temperature is less than or equal to the first preset temperature and greater than the second preset temperature, increase the opening of the wind deflector to the second opening; if the second If the temperature of the exhaust gas is less than or equal to the second preset temperature, the wind deflector is continuously placed in the upward blowing position, and the first opening degree is greater than the second opening degree.
  • the opening of the air deflector Up to the first opening, the opening of the air deflector is relatively large, which can effectively reduce the temperature of the air outlet and avoid condensation.
  • the second exhaust temperature is less than or equal to the first preset temperature and greater than the second preset temperature. At this time, the air outlet temperature is relatively high, but it will still cause condensation on the surface of the wind deflector. At this time, the opening of the wind deflector is increased To the second opening degree, condensation on the surface of the wind deflector can be avoided.
  • the opening degree of the expansion valve After increasing the opening degree of the expansion valve and running the second operation time, if the second exhaust temperature is less than or equal to the second preset temperature, it means that the opening degree of the expansion valve is increased so that the compressor exhaust temperature is at a lower value, It means that the cooling capacity has been weakened at this time, the temperature of the outflow is relatively increased, and the surface of the air deflector will not produce condensation. Through such control, the control accuracy is higher.
  • first opening degree and the second opening degree can also be the same, that is, in the case where the second exhaust gas temperature is greater than the first preset temperature and the second exhaust gas temperature is less than or equal to the first In the case where the temperature is set and is greater than the second preset temperature, the wind deflector is increased to the same opening degree.
  • the control method is used to prevent condensation on the surface of the air deflector, without the need to improve the structure of the air conditioner, reducing the production cost of the air conditioner, and solving the problem of the existing air conditioner by setting a heating device on the air deflector to prevent condensation
  • the technical solution has the problem of high production cost.

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Abstract

本申请属于空调技术领域，提供了一种空调器及其控制方法。本公开的空调器的控制方法：在空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小，根据比较结果选择性地增大导风板的开度。通过增大导风板的开度，减少了吹至导风板的气流量，并且增加了出风口处的出风量，在一定程度上提高了出风温度，从而避免了导风板的温度过低而在其表面产生大量凝露的现象出现。采用该控制方法防止导风板表面出现凝露，无需对空调器的结构进行改进，降低了空调器的生产成本，解决了现有空调器通过在导风板上设置加热装置来防凝露的技术方案存在的生产成本高的问题。

Description

空调器及其控制方法
本申请基于申请号为201811603265.5、申请日为2018.12.26的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请属于空调技术领域，例如涉及一种空调器及其控制方法。
背景技术
空调器的室内机在实现制冷功能时，空气的流通方式为：室内空间的空气从室内机的进风口进入室内机内部进行对流换热，换热后被降温的低温空气从出风口吹出。在此过程中，导风板的表面通常会产生凝露水，如果产生的凝露水较多而发生滴落现象时，会导致用户的使用体验差。
作为一种改进，专利(CN108759044A)公开了一种导风板结构，包括导风板本体，所述导风板本体内部设置有容纳腔，在所述容纳腔内部设置有加热装置，对导风板本体进行加热，从而避免在导风板本体的表面出现凝露。不过，需要在现有空气器的基础上改进导风板的结构并安装加热装置，增加了空调器的生产成本。
相应地，本领域需要一种新的技术方案来解决上述问题。
发明内容
为了解决现有技术中的上述问题，即为了解决现有空调器通过在导风板上设置加热装置来防凝露的技术方案存在的生产成本高的问题，一方面本公开提供了一种空调器的控制方法，所述控制方法包括：在所述空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小；根据比较结果，选择性地增大所述导风板的开度。
在一些可选实施例中，所述根据比较结果，选择性地增大所述导风板的开度，包括：在所述压缩机的运行频率大于预设频率的情形下，则获取当前的第一室内环境温度以及第一设定时长后的第二室内环境温度；根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度。
在一些可选实施例中，所述根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度，包括：在所述差值大于预设差值的情形下，使所述导风板持续处于所述上吹位置。
在一些可选实施例中，所述根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度，包括：在所述差值小于等于预设差值的情形下，获取所述压缩机当前的第一排气温度；比较所述第一排气温度与预设温度的大小，根据比较结果选择性地增大所述导风板的开度。
在一些可选实施例中，所述预设温度包括第一预设温度，所述根据比较结果选择 性地增大所述导风板的开度，包括：若所述第一排气温度大于所述第一预设温度，则增大所述导风板的开度。
在一些可选实施例中，所述预设温度包括第二预设温度，所述根据比较结果选择性地增大所述导风板的开度，包括：若所述第一排气温度小于等于所述第一预设温度且大于所述第二预设温度，则增加膨胀阀的开度然后选择性地增大所述导风板的开度；若所述第一排气温度小于等于所述第二预设温度，则使所述导风板持续处于所述上吹位置；其中，所述第二预设温度小于所述第一预设温度。
在一些可选实施例中，所述增加所述膨胀阀的开度后选择性地增大所述导风板的开度，包括：在增加所述膨胀阀的开度第二设定时长之后，获取所述压缩机当前的第二排气温度；比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度。
在一些可选实施例中，所述比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度，包括：若所述第二排气温度大于所述第一预设温度，则增加所述导风板的开度至第一开度；若所述第二排气温度小于等于所述第一预设温度且大于所述第二预设温度，则增加所述导风板的开度至第二开度；其中，所述第一开度和所述第二开度相同或者不同。
在一些可选实施例中，所述比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度，包括：若所述第二排气温度小于等于所述第二预设温度，则使所述导风板持续处于所述上吹位置。
本领域技术人员能够理解的是，在本公开的技术方案中，在空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小，根据比较结果选择性地增大导风板的开度。如在压缩机的运行频率高于预设频率运行时，空调器的制冷量较大，出风口吹出的气流温度较低，导风板处于上吹位置，低温气流吹至导风板而使导风板具有较低的温度，导风板的温度低于室内空气的露点而易出现大量的凝露。在此情况下，通过增大导风板的开度，减少了吹至导风板的气流量，并且增加了出风口处的出风量，在一定程度上提高了出风温度，从而避免了导风板的温度过低而在其表面产生大量凝露的现象出现。采用该控制方法防止导风板表面出现凝露，无需对空调器的结构进行改进，降低了空调器的生产成本，解决了现有空调器通过在导风板上设置加热装置来防凝露的技术方案存在的生产成本高的问题。
在本公开的技术方案中，在压缩机的运行频率大于预设频率的情形下，获取当前的第一室内环境温度以及第一设定时长后的第二室内环境温度，根据第一室内环境温度和第二室内环境温度的差值，选择性地增大导风板的开度。如在压缩机的运行频率大于预设频率且第一室内环境温度和第二室内环境温度的差值大于预设差值的情形下，保持导风板持续处于上吹位置。在压缩机的运行频率大于预设频率的情形下，若经过第一设定时长后室内环境温度降低值较大，说明室内空间封闭比较严密，室外空气不能进入室内，对室内环境湿度不会产生影响，并且室内环境温度降低较大，室内环境湿度相对降低了，此种情况下，导风板表面不会产生凝露。此时，使导风板持续处于上吹位置，能够避免频繁调节导风板的开度，优化了用户的使用体验。
另一方面，本公开还提供了一种空调器，所述空调器包括控制器，所述控制器用于执行上述任一项所述的控制方法。需要说明的是，该空调器具有上述空调器的控制方法的全部技术效果，在此不再赘述。
附图说明
下面参照附图并结合挂壁式空调器的控制方法来描述本公开的实施方式，附图中：
图1是本公开的挂壁式空调器的控制方法的流程图；
图2是本公开一种实施例的挂壁式空调器的控制方法的逻辑示意图。
具体实施方式
本领域技术人员应当理解的是，本节实施方式仅仅用于解释本公开的技术原理，并非用于限制本公开的保护范围。例如，虽然本公开是结合挂壁式空调器来对本公开的空调器的控制方法来进行介绍说明的，但是本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合，如本公开的空调器的控制方法也可以应用于立式空调器、吊顶式空调器等。显然，调整后的技术方案仍将落入本公开的保护范围。
此外，还需要说明的是，在本公开的描述中，除非另有明确的规定和限定，术语“固定”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域技术人员而言，可根据具体情况理解上述术语在本公开中的具体含义。
挂壁式空调器(下文简称空调器)主要包括室外机和室内机，室内机中设置有室内换热器、室内风机、控制器等，室外机中设置有压缩机、膨胀阀、室外风机和室外换热器等。空调器在制冷模式下工作时，导风板表面容易产生大量的凝露而出现滴水的现象，大大影响了用户的使用体验。
参照图1，图1是本公开的挂壁式空调器的控制方法的流程图。如图1所示，本公开的空调器的控制方法包括：
S100、在空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小；
S200、根据比较结果，选择性地增大导风板的开度。
如在空调器处于制冷运行过程中，用户设定导风板处于上吹位置，此时控制器获取压缩机的运行频率并比较与预设频率的大小。如果压缩机的运行频率大于预设频率，则控制导风板向下枢转设定的角度从而增大导风板的开度，此时室内机的出风口的出风量增加，并且使吹至导风板上的低温气流减少，避免了导风板的温度过低导致其表面出现凝露而滴落在室内的现象，优化了用户的使用体验。如果压缩机的运行频率小于等于预设频率，则控制器使导风板持续处于上吹位置，以便于低温气流吹至室内空间的上部，并逐渐与室内空间下部的空气混合而使室内空气的温度均匀降低，同时避免了导风板直吹用户造产生不适感。需要说明的是，增大导风板的开度仅是在导风板上吹位置的基础上增大较小范围的开度，如导风板绕枢转轴转动3°、5°、8°等，在避免产生凝露的同时避免出风口直吹用户。
采用该控制方法，在空调器制冷运行时避免了导风板上产生凝露，优化了用户的使用体验；无需对空调器的结构进行改进，降低了空调器的生产成本，解决了现有空调器通过在导风板上设置加热装置来防凝露的技术方案存在的生产成本高的问题。并且，避免室内机的出风口直吹用户，提高了舒适度。此外，相比直接通过降低频率来升高出风口处的气流温度来防止导风板表面产生凝露的方法，本公开的控制方法通过 增大导风板的开度来防止凝露产生，避免了空调器制冷能力的损失。本领域技术人员可以理解的是，在压缩机的运行频率大于预设频率时，也可以不直接增大导风板的角度，如获取室内环境温度或者室内环境温度的变化量等，根据室内环境温度或者室内环境温度的变化量选择性地增大导风板的角度。
参照图2，图2是本公开一种实施例的挂壁式空调器的控制方法的逻辑示意图。可选地，步骤S200包括：在压缩机的运行频率大于预设频率的情形下，则获取当前的第一室内环境温度以及第一设定时长后的第二室内环境温度，根据第一室内环境温度和第二室内环境温度的差值，选择性地增大导风板的开度。如在第一室内环境温度和第二室内环境温度的差值大于预设差值的情形下，使导风板持续处于上吹位置；在第一室内环境温度和第二室内环境温度的差值小于等于预设差值的情形下，增大导风板的开度。
如在压缩机的运行频率大于预设频率的情形下，空调室内机上的温度传感器获取当前的第一室内环境温度为33℃，空调器按照当前的运行参数运行第一设定时长5min之后，温度传感器获取当前的第二室内环境温度为29℃，第一室内环境温度和第二室内环境温度的差值为4℃，此时第一室内环境温度和第二室内环境温度的差值大于预设差值如3℃。经过第一设定时长，室内环境降温效果明显，这说明室内空间封闭比较严密，室外空气不能进入室内，对室内环境湿度不会产生影响。经过第一设定时长的制冷，室内环境的温度降低，室内空气的湿度相对降低，导风板表面不会产生较多凝露。此时，导风板持续处于上吹位置，无需增大导风板的开度，避免了对导风板开度的频繁调节，优化了用户的使用体验。在门窗未关闭好的情况下，如果压缩机的运行频率大于预设频率，空调室内机上的温度传感器获取当前的第一室内环境温度为33℃，空调器按照当前的运行参数运行第一设定时长5min之后，温度传感器获取当前的第二室内环境温度为31℃，第一室内环境温度和第二室内环境温度的差值为2℃，此时第一室内环境温度和第二室内环境温度的差值小于预设差值(3℃)。门窗未关闭好，室外空气能够进入室内，从而使室内空气的湿度维持在较高的水平，在此种情况下，导风板的表面会产生凝露，可以增大导风板的开度，避免导风板表面产生凝露。
本领域技术人员可以理解的是，第一室内环境温度为33℃、第二室内环境温度为29℃或者31℃、预设差值为3℃、第一设定时长为5min、等均是示例性的描述，本领域将技术人员可以根据需要对其作出调整，以便适应具体的应用场合，如第一室内环境温度根据实际测量后可以是34℃、32℃、30℃等，第二室内环境温度可以是33℃、30℃、25℃等，预设差值可以是2℃、4℃、5℃等，第一设定时长可以是3min、8min、10min等。此外，第一室内环境温度和第二室内环境温度的差值大于预设差值的情形下，增加导风板的角度仅是一种示例性的描述，本领域技术人员可以进一步获取其他参数并根据获取的参数来选择性地增大导风板的开度。
继续参照图2，可选地，在第一室内环境温度和第二室内环境温度的差值大于预设差值的情形下，获取压缩机当前的第一排气温度，比较第一排气温度与预设温度的大小，根据比较结果选择性地增大导风板的开度。
在一些可选实施例中，预设温度包括第一预设温度和第二预设温度，其中第二预设温度小于第一预设温度。在第一室内环境温度和第二室内环境温度的差值大于预设差值的情形下，获取压缩机的第一排气温度，并比较第一排气温度与第一预设温度和第二预设温度的大小。如果第一排气温度大于第一预设温度，则增大导风板的开度； 如果第一排气温度小于等于第二预设温度，则使导风板持续处于上吹位置；如果第一排气温度小于等于第一预设温度且大于第二预设温度，则增加膨胀阀的开度然后选择性地增大导风板的开度。
在压缩机的第一排气温度较高时，说明空调器压缩机的压缩比相对较大，空调器的制冷能力较强，此时出风温度较低，导风板表面易产生凝露。通过比较压缩机的第一排气温度与预设温度的大小，并根据比较结果选择性增大导风板，能够更加准确地判断此时导风板是否会产生凝露。通过增加阀开度，使压缩机的压缩比降低，从而使空调出风的温度相对降低，从而避免凝露的产生。与直接降低压缩机的运行频率来防止导风板表面产生凝露的方法相比，增加阀开度对空调制冷能力的降低相对较小，在防止导风板表面产生凝露的同时，提高了空调器的制冷效果及舒适度，优化了用户体验。
本领域技术人员可以理解的是，预设温度可以仅包括第一预设温度，如果第一排气温度大于第一预设温度，则增大导风板的开度；如果第一排气温度小于等于第一预设温度，则使导风板持续处于上吹位置。当然，还可以根据第一排气温度与第一预设温度的大小，进行其他合适的控制。
继续参照图2，可选地，“增加膨胀阀的开度后选择性地增大导风板的开度”的步骤包括：在增加膨胀阀的开度第二设定时长之后，获取压缩机当前的第二排气温度；比较第二排气温度与预设温度的大小，根据比较结果选择性地增加导风板的开度。
在一些可选实施例中，在增加膨胀阀的开度第二设定时长之后，获取压缩机当前的第二排气温度，若第二排气温度大于第一预设温度，则增加导风板的开度至第一开度；若第二排气温度小于等于第一预设温度且大于第二预设温度，则增加所述导风板的开度至第二开度；若第二排气温度小于等于第二预设温度，则使导风板持续处于上吹位置其中，第一开度大于第二开度。
增加膨胀阀的开度并运行第二设定时长之后，通过获取第二排气温度，并根据第二排气温度与预设温度的比较结果选择性地增大导风板的开度，能够避免增大膨胀阀开度之后空调器制冷能力仍然较强，出风温度较低而导致导风板表面产生凝露的现象。增大膨胀阀的开度并运行第二运行时长后，如果第二排气温度大于第一预设温度，说明出风温度较低，产生凝露的现象较为严重，增加导风板的开度至第一开度，导风板的开度相对较大，能够较为有效地降低出风温度，避免产生凝露。第二排气温度小于等于第一预设温度且大于第二预设温度，此时出风温度相对较高，但依然会使导风板表面产生凝露，此时增加导风板的开度至第二开度即可避免导风板表面产生凝露。增大膨胀阀的开度并运行第二运行时长后，如果第二排气温度小于等于第二预设温度，说明增大膨胀阀开度以经使压缩机的排气温度处于较低值，说明此时制冷能力已经减弱，出风温度相对升高，导风板表面不会产生凝露。通过这样的控制，控制精度更高。
本领域技术人员可以理解的是，第一开度和第二开度也可以相同，即在第二排气温度大于第一预设温度的情形下以及在第二排气温度小于等于第一预设温度且大于第二预设温度的情形下，均使导风板增大至相同的开度。
通过以上描述可以看出，在本公开的技术方案中，在空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小，根据比较结果选择性地增大导风板的开度。在压缩机的运行频率大于预设频率的情形下，获取当前 的第一室内环境温度以及第一设定时长后的第二室内环境温度，根据第一室内环境温度和第二室内环境温度的差值，选择性地增大导风板的开度。在差值大于预设差值的情形下，使导风板持续处于上吹位置。在差值小于等于预设差值的情形下，获取压缩机当前的第一排气温度，比较第一排气温度与预设温度的大小，根据比较结果选择性地增大导风板的开度。
根据压缩机的运行频率选择性地增大导风板的开度，减少了吹至导风板的气流量，同时增加了出风口处的出风量，在一定程度上提高了出风口的出风温度，从而避免了导风板的温度过低而在其表面产生大量凝露的现象出现。采用该控制方法防止导风板表面出现凝露，无需对空调器的结构进行改进，降低了空调器的生产成本，解决了现有空调器通过在导风板上设置加热装置来防凝露的技术方案存在的生产成本高的问题。
以上实施例仅表达了本公开的实施方式，其描述较为具体和详细，但并不能因此而理解为对本公开专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开的保护范围。因此，本公开专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种空调器的控制方法，其特征在于，所述控制方法包括：
    在所述空调器处于制冷运行且导风板处于上吹位置的情形下，比较压缩机的运行频率与预设频率的大小；
    根据比较结果，选择性地增大所述导风板的开度。
  2. 根据权利要求1所述的控制方法，其特征在于，所述根据比较结果，选择性地增大所述导风板的开度，包括：
    在所述压缩机的运行频率大于预设频率的情形下，则获取当前的第一室内环境温度以及第一设定时长后的第二室内环境温度；
    根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度。
  3. 根据权利要求2所述的控制方法，其特征在于，所述根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度，包括：
    在所述差值大于预设差值的情形下，使所述导风板持续处于所述上吹位置。
  4. 根据权利要求2所述的控制方法，其特征在于，所述根据所述第一室内环境温度和所述第二室内环境温度的差值，选择性地增大所述导风板的开度，包括：
    在所述差值小于等于预设差值的情形下，获取所述压缩机当前的第一排气温度；
    比较所述第一排气温度与预设温度的大小，根据比较结果选择性地增大所述导风板的开度。
  5. 根据权利要求4所述的控制方法，其特征在于，所述预设温度包括第一预设温度，所述根据比较结果选择性地增大所述导风板的开度，包括：
    若所述第一排气温度大于所述第一预设温度，则增大所述导风板的开度。
  6. 根据权利要求5所述的控制方法，其特征在于，所述预设温度包括第二预设温度，所述根据比较结果选择性地增大所述导风板的开度，包括：
    若所述第一排气温度小于等于所述第一预设温度且大于所述第二预设温度，则增加膨胀阀的开度然后选择性地增大所述导风板的开度；
    若所述第一排气温度小于等于所述第二预设温度，则使所述导风板持续处于所述上吹位置；
    其中，所述第二预设温度小于所述第一预设温度。
  7. 根据权利要求6所述的控制方法，其特征在于，所述增加所述膨胀阀的开度后选择性地增大所述导风板的开度，包括：
    在增加所述膨胀阀的开度第二设定时长之后，获取所述压缩机当前的第二排气温度；
    比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度。
  8. 根据权利要求7所述的控制方法，其特征在于，所述比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度，包括：
    若所述第二排气温度大于所述第一预设温度，则增加所述导风板的开度至第一开度；
    若所述第二排气温度小于等于所述第一预设温度且大于所述第二预设温度，则增 加所述导风板的开度至第二开度；
    其中，所述第一开度和所述第二开度相同或者不同。
  9. 根据权利要求7所述的控制方法，其特征在于，所述比较所述第二排气温度与所述预设温度的大小，根据比较结果选择性地增加所述导风板的开度，包括：
    若所述第二排气温度小于等于所述第二预设温度，则使所述导风板持续处于所述上吹位置。
  10. 一种空调器，其特征在于，所述空调器包括控制器，所述控制器用于执行权利要求1至9中任一项所述的空调器的控制方法。
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