WO2022198978A1 - 用于控制空调防凝露的方法及装置、空调器 - Google Patents

用于控制空调防凝露的方法及装置、空调器 Download PDF

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Publication number
WO2022198978A1
WO2022198978A1 PCT/CN2021/121866 CN2021121866W WO2022198978A1 WO 2022198978 A1 WO2022198978 A1 WO 2022198978A1 CN 2021121866 W CN2021121866 W CN 2021121866W WO 2022198978 A1 WO2022198978 A1 WO 2022198978A1
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WIPO (PCT)
Prior art keywords
compressor
air conditioner
fan
frequency
change rate
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PCT/CN2021/121866
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English (en)
French (fr)
Inventor
罗荣邦
崔俊
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2022198978A1 publication Critical patent/WO2022198978A1/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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—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
    • 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
    • F24F11/77—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 by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • 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
    • F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of air conditioning control, for example, to a method, a device and an air conditioner for controlling dew condensation of an air conditioner.
  • the air conditioner blows water and soaks the floor or wall, which affects the user's use effect.
  • the temperature of the coil and the air volume of the air outlet of the air conditioner are detected, and when the temperature of the coil tube or the air outlet volume does not meet the preset conditions, the compressor is controlled to reduce the frequency or increase the air volume of the air outlet, so as to prevent the internal unit of the air conditioner. Condensation occurs.
  • the anti-condensation control means are realized by increasing the evaporation temperature.
  • the embodiments of the present disclosure provide a method, a device and an air conditioner for controlling the condensation prevention of an air conditioner, so as to solve the technical problem that the condensation control of the air conditioner is not timely or delayed.
  • the method includes: obtaining the temperature change rate of the coil of the internal air conditioner; and determining the internal unit when the temperature change rate of the coil of the internal air conditioner is greater than or equal to a first threshold and less than a second threshold
  • the operating parameters of the fan are controlled, and the internal unit fan is controlled to operate under the operating parameters; when the temperature change rate of the air conditioner internal unit coil is greater than or equal to the second threshold, the operating frequency of the compressor is obtained; according to The operating frequency of the compressor determines the operating strategy of the compressor or the internal machine fan, and controls the compressor or the internal machine fan to operate under the operating strategy.
  • the apparatus includes: a temperature sensor module configured to obtain the temperature change rate of the inner unit coil of the air conditioner; and a first control module configured to be greater than or equal to the temperature change rate of the inner unit coil unit of the air conditioner
  • the first threshold value is smaller than the second threshold value
  • the operation parameters of the internal unit fan are determined, and the internal unit fan is controlled to operate under the operating parameters
  • the second control module is configured to operate the internal unit coil of the air conditioner.
  • the temperature change rate is greater than or equal to the second threshold
  • the operating frequency of the compressor is obtained; according to the operating frequency of the compressor, the operating strategy of the compressor or the internal fan is determined, and the compressor is controlled The engine or the internal fan operates under the operating strategy.
  • the air conditioner includes: the above-mentioned device for controlling the condensation prevention of the air conditioner.
  • the method, device and air conditioner for controlling condensation prevention of an air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:
  • the embodiment of the present disclosure can quickly and accurately reflect whether the air conditioner may have condensation problem according to the temperature change rate of the inner unit coil of the air conditioner.
  • the combination of the speed of the air conditioner and the fan can prevent condensation of the air conditioner and improve the user experience.
  • FIG. 1 is a schematic diagram of a method for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of another method for controlling anti-condensation of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a device for controlling condensation prevention of an air conditioner provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another device for controlling condensation prevention of an air conditioner provided by an embodiment of the present disclosure.
  • A/B means: A or B.
  • a and/or B means: A or B, or, A and B three relationships.
  • an embodiment of the present disclosure provides a method for controlling anti-condensation of an air conditioner, including:
  • the condition for condensation generation is that the indoor temperature is lower than the indoor dew point temperature. Therefore, the temperature of the inner unit coil of the air conditioner can be used as a condition for judging condensation generation.
  • the inner unit coil On the basis of temperature, combined with parameters such as the air volume of the indoor fan or the air pressure difference on both sides of the filter screen, it is judged whether condensation will occur; in this way, the judgment efficiency is reduced.
  • the temperature change rate is used to judge the generation of condensation, which helps to improve the efficiency. Meanwhile, the temperature change rate can reflect the temperature change trend, which is more accurate than the temperature value.
  • the temperature of the inner unit coil can be obtained by setting a temperature sensor, and the sensor can be set at the inner unit coil or at the air outlet; the temperature collection frequency can be set at a collection period or irregularly.
  • the first threshold is a critical value for determining whether the indoor unit of the air conditioner generates condensation, that is, when the first temperature change rate of the inner unit coil is less than the first threshold, the air conditioner has no risk of condensation. Keep the current operating state for operation; when the first temperature change rate of the inner unit coil is greater than or equal to the first threshold, the air conditioner has the risk of condensation, and the air conditioner performs anti-condensation control.
  • the air conditioner inner unit fan Judging the relationship between the first temperature change rate of the inner unit coil and the second threshold, if the first temperature change rate of the air conditioner inner unit coil is less than the second threshold, the air conditioner inner unit fan is controlled to operate under the operating parameters; wherein, the inner unit fan
  • the determination of the operating parameters can be to increase the air output of the fan, or to increase the speed of the fan, etc.; by increasing the evaporation temperature, condensation can be avoided.
  • the control strategy for anti-condensation of the air conditioner is determined according to the operating frequency of the compressor, that is, the air conditioner compression is determined according to the operating frequency of the compressor.
  • the internal unit of the fan or fan runs under the corresponding operation strategy.
  • the operation of the internal fan of the fan is controlled, and the operation strategy can be to increase the fan speed or increase the air output; or, when the operating frequency of the compressor is less than the preset value, control the compressor
  • the operation strategy can be to reduce the compressor frequency to increase the outlet air temperature, or to control the compressor oil return to increase the frequency to eliminate the oil accumulation inside the copper pipe and improve the heat transfer coefficient, etc.
  • the method for controlling the condensation prevention of the air conditioner provided by the embodiment of the present disclosure, it is possible to quickly and accurately determine whether the air conditioner has the risk of generating condensation, and adopt different control strategies according to different judgment results, thus helping to prevent the condensation of the air conditioner. Dew is generated to improve the user's sense of use.
  • determine the operation strategy of the compressor or the fan of the internal machine including:
  • the oil return of the compressor is controlled, and the operating frequency of the compressor is controlled to increase to the first frequency; after the compressor has been running for a first time, the The operating frequency is restored to the frequency before the increase; when the frequency of the compressor is greater than or equal to the first frequency, the speed of the internal fan is controlled to increase the set speed.
  • the internal fan is controlled to increase the rotational speed; in this case, the compressor operates at a higher frequency, the refrigerant flow rate increases, and the compressor oil return effect is better , the possibility of oil accumulation inside the copper tube is low; if the compressor action is controlled, there is no obvious effect on improving the heat transfer coefficient; therefore, by controlling the internal fan to increase the speed, increase the evaporation temperature, and achieve anti-condensation control.
  • the operating frequency of the compressor is less than the first frequency and greater than the second frequency, control the oil return of the compressor, and increase the operating frequency to the first frequency; in this example, when the operating frequency of the compressor is relatively low, the internal The temperature change rate of the machine coil is relatively large, which may be caused by the accumulation of oil inside the copper pipe, which affects the heat transfer coefficient and reduces the heat conduction effect; therefore, by controlling the oil return of the compressor and increasing the operating frequency, the oil accumulation in the copper pipe can be solved. problem, and then improve the heat conduction effect.
  • the compressor operating frequency after the compressor operating frequency is increased for the first period of time, the compressor operating frequency will return to the operating frequency before the boost; in this way, it can be avoided that the compressor operates at high frequency for a long time, which will cause the air temperature of the air conditioner to drop too quickly, resulting in condensation. risks of.
  • the operating frequency of the compressor when the operating frequency of the compressor is less than the second frequency, control the oil return of the compressor, and control the operating frequency of the compressor to increase to the second frequency; after the compressor has been operated for a second period of time, control the operation of the compressor The frequency is restored to the frequency before the boost; wherein, the first duration is longer than the second duration.
  • the second frequency is set, and the compressor
  • the operating frequency of the compressor is increased to the second frequency, so as to achieve a steady increase in the frequency of the compressor, and at the same time, the oil accumulated in the copper pipe is dredged.
  • the second temperature change rate of the inner unit coil of the air conditioner is obtained; when the second temperature change rate of the inner unit coil of the air conditioner is greater than or equal to the second threshold In this case, control the rotational speed of the indoor fan to increase the set rotational speed.
  • the temperature change rate of the coil unit of the air conditioner that is, the second temperature change rate
  • the second temperature change rate is obtained again, and it is judged whether the second temperature change rate is smaller than the preset second threshold. 2.
  • the temperature change rate is still greater than or equal to the preset second threshold, which means that there may not be oil accumulated inside the copper pipe. Therefore, in this case, the internal fan can be controlled to increase the speed, thereby increasing the evaporation temperature and avoiding condensation. .
  • an embodiment of the present disclosure provides another method for controlling air conditioner anti-condensation, including:
  • the method before acquiring the temperature change rate of the inner unit coil of the air conditioner, the method further includes: acquiring the compressor frequency, the rotational speed of the indoor unit fan, and the rotational speed of the outdoor unit fan; Obtain the temperature of the inner unit coil of the air conditioner when the rotational speed of the unit remains unchanged.
  • the anti-condensation control is to obtain the temperature change rate of the coil of the air conditioner after the air conditioner runs stably to determine whether it is possible Condensation occurs; it is generally believed that when the frequency of the compressor and the rotational speed of the internal and external fans of the air conditioner are relatively unchanged, the air conditioner enters a stable operation stage, that is, the frequency of the compressor fluctuates and the speed fluctuation of the internal and external fans of the air conditioner is within the allowable fluctuation range. , the air conditioner enters the stable operation stage; after the air conditioner operates stably, the anti-condensation control is carried out, which helps to save resources.
  • the rotational speed of the indoor unit fan is increased. Avoid condensation.
  • the setting time can be determined according to the needs. For example, increasing the fan speed may affect the user's sense of use. Therefore, the setting time is generally shorter; but in order to better avoid condensation, it is generally expected that the setting time is longer. long.
  • the set rotation speed can be 30rpm, 50rpm, 600rpm, etc. each time, which can be set according to actual needs.
  • S203 Obtain the third temperature change rate of the inner air conditioner coil; if the third temperature change rate of the inner air conditioner coil is greater than or equal to the first threshold and smaller than the second threshold, control the indoor fan to increase the set speed again.
  • the temperature change rate of the coil unit of the air conditioner can be obtained again to determine whether the third temperature change rate meets the set threshold.
  • the speed of the internal machine can be increased again.
  • the temperature change rate of the coil unit of the air conditioner can be obtained periodically or irregularly. If the temperature change rate still does not meet the threshold, the rotation speed can be continued to increase until the temperature change rate meets the set threshold.
  • the indoor fan is controlled to run at the maximum rotational speed.
  • the maximum rotational speed of the indoor unit of the air conditioner may exceed the maximum rotational speed of the indoor unit of the air conditioner. Yes, without overloading.
  • the air conditioner can prevent condensation from being generated, so as to avoid condensation caused by liquid backflow, which affects the stability of the air conditioner.
  • an embodiment of the present disclosure provides an apparatus for controlling condensation prevention of an air conditioner, including a temperature sensor module 21 , a first control module 22 and a second control module 23 .
  • the temperature sensor module 21 is configured to obtain the temperature change rate of the inner air conditioner coil;
  • the first control module 22 is configured to be greater than or equal to the first threshold and less than the second threshold when the temperature change rate of the inner air conditioner coil is greater than or equal to the second threshold.
  • the second control module 23 is configured to obtain the compressor when the temperature change rate of the internal unit coil of the air conditioner is greater than or equal to the second threshold value. According to the operating frequency of the compressor, determine the operation strategy of the compressor or the internal machine fan, and control the compressor or the internal machine fan to operate under the operating strategy.
  • the use of the device for controlling the condensation prevention of the air conditioner provided by the embodiment of the present disclosure is beneficial to quickly and accurately reflect whether the air conditioner may have a condensation problem according to the temperature change rate of the inner unit coil of the air conditioner.
  • the combination of the speed of the internal fan and the fan achieves anti-condensation.
  • an embodiment of the present disclosure provides an apparatus for controlling condensation prevention of an air conditioner, including a processor (processor) 400 and a memory (memory) 401 .
  • the apparatus may further include a communication interface (Communication Interface) 402 and a bus 403 .
  • the processor 400 , the communication interface 402 , and the memory 401 can communicate with each other through the bus 403 .
  • Communication interface 402 may be used for information transfer.
  • the processor 400 may invoke the logic instructions in the memory 401 to execute the method for controlling the anti-condensation of the air conditioner in the above-mentioned embodiments.
  • logic instructions in the memory 401 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 401 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 400 executes the function application and data processing by running the program instructions/modules stored in the memory 401 , that is, to implement the method for controlling the air conditioner to prevent condensation in the above-mentioned embodiment.
  • the memory 401 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like.
  • the memory 401 may include high-speed random access memory, and may also include non-volatile memory.
  • An embodiment of the present disclosure provides an air conditioner, including the above-mentioned device for controlling the condensation prevention of the air conditioner.
  • Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are configured to execute the foregoing method for controlling condensation prevention of an air conditioner.
  • An embodiment of the present disclosure provides a computer program product, where the computer program product includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions that, when executed by a computer, cause all The computer executes the above-mentioned method for controlling the anti-condensation of the air conditioner.
  • the above-mentioned computer-readable storage medium may be a transient computer-readable storage medium, and may also be a non-transitory computer-readable storage medium.
  • the technical solutions of the embodiments of the present disclosure may be embodied in the form of software products, and the computer software products are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods described in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, removable hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.
  • the term “and/or” as used in this application is meant to include any and all possible combinations of one or more of the associated listings.
  • the term “comprise” and its variations “comprises” and/or including and/or the like refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element qualified by the phrase “comprising a" does not preclude the presence of additional identical elements in the process, method, or device that includes the element.
  • each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other.
  • the methods, products, etc. disclosed in the embodiments if they correspond to the method section disclosed in the embodiments, reference may be made to the description of the method section for relevant parts.
  • the disclosed methods and products may be implemented in other ways.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units may only be a logical function division.
  • there may be other division methods for example, multiple units or components may be combined Either it can be integrated into another system, or some features can be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions.
  • the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.

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Abstract

一种控制空调防凝露方法及装置，该方法包括：获取空调内机盘管第一温度变化率；在所述空调内机盘管第一温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行；在所述空调内机盘管第一温度变化率大于或等于第二阈值的情况下，获取压缩机的运行频率；根据压缩机的运行频率，确定所述压缩机或所述内机风机的运行策略，控制所述压缩机或所述内机风机在所述运行策略下运行。该方法根据空调内机盘管温度变化率，快速准确地判断空调是否可能凝露，通过控制压缩机回油变频和内机风机转速相结合的方式，实现空调凝露预防。

Description

用于控制空调防凝露的方法及装置、空调器
本申请基于申请号为202110303399.0、申请日为2021年3月22日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
本申请涉及空调控制技术领域，例如涉及一种用于控制空调防凝露的方法、装置和空调器。
背景技术
目前，空调在夏季除湿或制冷过程中，存在空调吹水浸湿地板或墙面的现象，影响用户使用效果。相关技术中，采用检测盘管温度和空调出风口风量，在盘管温度或出风量不满足预置条件的情况下，控制压缩机降低频率或调大出风口的风量，用以防止空调内机产生凝露。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
通过采集盘管温度及风量等多参数，结合预设条件判断是否需要进行防凝露控制，多参数判断，降低了判断效率，导致对空调参数控制产生延时，不利于空调凝露问题的预防；此外，防凝露调控手段均采用提高蒸发温度实现。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种用于控制空调防凝露的方法、装置和空调器，以解决空调凝露控制不及时或滞后的技术问题。
在一些实施例中，所述方法包括：获取空调内机盘管温度变化率；在所述空调内机盘管温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行；在所述空调内机盘管温度变化率大于或等于所述第二阈值的情况下，获取压缩机的运行频率；根据所述压缩机的运行频率， 确定所述压缩机或所述内机风机的运行策略，控制所述压缩机或所述内机风机在所述的运行策略下运行。
在一些实施例中，所述装置包括：温度传感器模块，被配置为获取空调内机盘管温度变化率；第一控制模块，被配置为在所述空调内机盘管温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行；第二控制模块，被配置为在所述空调内机盘管温度变化率大于或等于所述第二阈值的情况下，获取压缩机的运行频率；根据所述压缩机的运行频率，确定所述压缩机或所述内机风机的运行策略，控制所述压缩机或所述内机风机在所述的运行策略下运行。
在一些实施例中，所述空调器包括：上述用于控制空调防凝露的装置。
本公开实施例提供的用于控制空调器防凝露的方法、装置和空调器，可以实现以下技术效果：
针对高温高湿环境下，空调易出现凝露的问题，本公开实施例根据空调内机盘管温度变化率，可以快速准确地反映空调是否可能存在产生凝露问题，并通过控制压缩机和内机风机转速相结合的方式，实现空调凝露预防，提高用户的使用体验。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一个用于控制空调防凝露的方法的示意图；
图2是本公开实施例提供的另一个用于控制空调防凝露的方法的示意图；
图3是本公开实施例提供的一个用于控制空调防凝露的装置的示意图；
图4是本公开实施例提供的另一个用于控制空调防凝露的装置的示意图。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充 分理解。然而，在没有这些细节的情况下，一个或多个实施例仍然可以实施。在其它情况下，为简化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开实施例的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
除非另有说明，术语“多个”表示两个或两个以上。
本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
结合图1所示，本公开实施例提供一种用于控制空调防凝露的方法，包括：
S101，获取空调内机盘管第一温度变化率。
本实施例中，在空调器制冷或除湿模式稳定运行后，检测空调内机盘管的温度，通过相邻时刻的温度变化情况获取第一温度变化率；例如，如果空调内机盘管T 0时刻温度为Tp 0，T 1时刻温度为Tp 1，则第一温度变化率R 1＝|(Tp 0-Tp 1)/(T 1-T 0)|。
凝露产生条件是室内温度低于室内露点温度，因此，空调内机盘管温度可以作为判断凝露产生的一个条件，现有技术中，为了提高凝露判断的准确性，在内机盘管温度的基础上，结合内机风机风量或滤网两侧气压差等参数，判断凝露是否会产生；如此，降低了判断效率。本实施例采用温度变化率判断凝露产生，这样，有助于提高效率，同时，温度变化率能反映温度变化趋势，与温度值相比，其准确性更高。
此外，内机盘管温度的获取，可以通过设置温度传感器获取，传感器可以设置在内机盘管处或者设置在出风口处；温度采集频率可以设定采集周期或者不定时采集。
S102，在空调内机盘管第一温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制内机风机在运行参数下运行。
本实施例中，第一阈值是确定空调内机是否产生凝露的临界值，即在内机盘管第一温度变化率小于第一阈值时，空调没有产生凝露的风险，此时，空调保持当前运行状态进行运行；在内机盘管第一温度变化率大于或等于第一阈值时，空调有产生凝露的风险，空调进行防凝露控制。判断内机盘管第一温度变化率与第二阈值的关系，如果空调内机盘管第一温度变化率小于第二阈值，则控制空调内机风机在运行参数下运行；其中， 内机风机运行参数的确定，可以是增加风机的出风量，或者，可以是提升风机转速等；通过提高蒸发温度，避免凝露的产生。
S103，在空调内机盘管第一温度变化率大于或等于第二阈值的情况下，获取压缩机的运行频率；根据压缩机的运行频率，确定压缩机或内机风机的运行策略，控制压缩机或内机风机在运行策略下运行。
本实施例中，如果空调内机盘管第一温度变化率大于或等于第二阈值，则根据压缩机的运行频率确定空调防凝露的控制策略，即根据压缩机的运行频率，确定空调压缩机或风机内机在对应的运行策略下运行。例如，可以是压缩机运行频率大于或等于预设值时，控制风机内机运行，运行策略可以是提高风机转速或者增加出风量；或者，可以是压缩机运行频率小于预设值时，控制压缩机运行，运行策略可以是降低压缩机频率，以调高出风温度，或者可以是控制压缩机回油提高频率，以消除铜管内部的积油，提高换热系数等。
采用本公开实施例提供的用于控制空调防凝露的方法，能快速准确地判断空调是否存在产生凝露的风险，并针对不同判断结果采用不同的控制策略，如此，有助于防止空调凝露产生，提高用户使用感。
可选地，根据压缩机的频率，确定压缩机或内机风机的运行策略，包括：
在压缩机的运行频率小于第一频率且大于第二频率的情况下，控制压缩机回油，并控制压缩机的运行频率提升至第一频率；压缩机运行第一时长后，控制压缩机的运行频率恢复至提升前的频率；在压缩机的频率大于或等于第一频率的情况下，控制内机风机的转速提升设定转速。
本实施例中，如果压缩机频率大于预设的第一频率，则控制内机风机提升转速运行；在这种情况下，压缩机运行频率较高，冷媒流速提高，压缩机回油效果较好，铜管内部积油的可能性较低；如果控制压缩机动作，对于提高换热系数无明显效果；因此，通过控制内机风机提升转速，提高蒸发温度，实现防凝露控制。
如果压缩机的运行频率小于第一频率且大于第二频率，则控制压缩机回油，并将运行频率提升至第一频率；本示例中，在压缩机运行频率相对较低的情况下，内机盘管温度变化率较大，造成这种情形的原因可能是铜管内部积油，影响换热系数，降低热传导效果；因此，通过控制压机回油并提升运行频率，解决铜管积油问题，进而提高热传导效果。
此外，压缩机运行频率提升运行第一时长后，压缩机运行频率恢复至提升前的运 行频率；如此，可以避免压缩机长时间高频运行，造成空调出风温度降低过快，从而产生凝露的风险。
可选地，在压缩机的运行频率小于第二频率的情况下，控制压缩机回油，并控制压缩机的运行频率提升至第二频率；压缩机运行第二时长后，控制压缩机的运行频率恢复至提升前的频率；其中，第一时长长于第二时长。
本实施例中，在控制压缩机运行频率提升的过程中，为了避免压缩机频率提升过高，影响压缩机性能或造成空调出风温度过低产生凝露，设定第二频率，在压缩机运行频率小于第二频率时，将压缩机运行频率提升至第二频率，实现压缩机频率的稳步提升，同时使得铜管内部积油得到疏通。
可选地，控制压缩机的运行频率恢复至提升前的频率后，获取空调内机盘管的第二温度变化率；在空调内机盘管的第二温度变化率大于或等于第二阈值的情况下，控制所述内机风机转速提升设定转速。
本实施例中，控制压缩机在运行策略下运行后，再次获取空调内机盘管的温度变化率即第二温度变化率，判断第二温度变化率是否小于预设的第二阈值，如果第二温度变化率仍大于或等于预设的第二阈值，则说明铜管内部可能并未积油，因此，这种情况下，可以控制内机风机提升转速，从而提高蒸发温度，避免产生凝露。
结合图2所示，本公开实施例提供另一种用于控制空调防凝露的方法，包括：
S201，获取空调内机盘管第一温度变化率。
可选地，获取空调内机盘管的温度变化率前，还包括：获取压缩机频率、内机风机的转速和外机风机的转速；在所述压缩机频率、内机风机和外机风机的转速处于不变状态下，获取空调内机盘管的温度。
空调正常运行出现凝露，通常是在空调稳定运行一段时间后发生，因此，本实施例中，防凝露控制是在空调稳定运行后，获取空调内机盘管的温度变化率，判断是否可能产生凝露；一般认为，压缩机频率、空调内外机风机的转速均处于相对不变状态时，空调进入稳定运行阶段，即压缩机频率波动、空调内外机风机的转速波动在允许波动范围之内，空调进入稳定运行阶段；在空调稳定运行后，进行防凝露控制，有助于节省资源。
S202，在空调内机盘管第一温度变化率大于或等于第一阈值且小于第二阈值的情况下，控制内机风机的转速提升设定转速运行设定时长。
本实施例中，如果空调内机盘管第一温度变化率大于或等于第一阈值、小于第二 阈值，则提升内机风机的转速，通过提升内机风机转速，增加风量，提高蒸发温度，避免产生凝露。设定时长的确定，可以根据需求设定，例如，提高风机转速，可能影响用户的使用感，因此，设定时长一般较短；但为了更好地避免产生凝露，一般期望设定时长较长。此外，设定转速可以是每次提升30rpm、50rpm、600rpm等，可结合实际需求设置。
S203，获取空调内机盘管第三温度变化率；如果空调内机盘管第三温度变化率大于或等于第一阈值且小于第二阈值，则控制内机风机再次提升设定转速。
本实施例中，在空调内机提升转速运行设定时长后，可以再次获取空调内机盘管的温度变化率，即第三温度变化率，判断第三温度变化率是否满足设定阈值，不满足时，可以再次提升内机转速。作为一种示例，在提升转速后，可以定时或不定时地获取空调内机盘管的温度变化率，如果温度变化率仍不满足阈值，可以继续增加转速，直至温度变化率满足设定阈值。
可选地，如果再次提升设定转速后，内机风机的转速超出内机风机的最大转速，则控制内机风机以最大转速运行。
本实施例中，空调内机风机在数次提升转速后，可能会超出空调内机的最大转速，这种情况下，考虑到空调性能、使用寿命等因素，空调内机在最大转速下运行即可，无需超负荷运行。
S204，在空调内机盘管第一温度变化率大于或等于第二阈值的情况下，获取压缩机的运行频率；根据压缩机的运行频率，确定压缩机或内机风机的运行策略，控制压缩机或内机风机在运行策略下运行。
本实施例中，通过控制压缩机和风机内机结合的方式，实现空调防凝露，避免产生凝露造成回液，影响空调稳定性。
结合图3所示，本公开实施例提供一种用于控制空调防凝露的装置，包括温度传感器模块21、第一控制模块22和第二控制模块23。温度传感器模块21，被配置为获取空调内机盘管温度变化率；第一控制模块22，被配置为在空调内机盘管温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制内机风机在运行参数下运行；第二控制模块23，被配置为在空调内机盘管温度变化率大于或等于第二阈值的情况下，获取压缩机的运行频率；根据压缩机的运行频率，确定压缩机或内机风机的运行策略，控制压缩机或内机风机在的运行策略下运行。
采用本公开实施例提供的用于控制空调防凝露的装置，有利于根据空调内机盘管 温度变化率，快速准确地反映空调是否可能存在产生凝露问题，通过控制压缩机回油变频和内机风机转速相结合的方式，实现防凝露。
结合图4所示，本公开实施例提供一种用于控制空调防凝露的装置，包括处理器(processor)400和存储器(memory)401。可选地，该装置还可以包括通信接口(Communication Interface)402和总线403。其中，处理器400、通信接口402、存储器401可以通过总线403完成相互间的通信。通信接口402可以用于信息传输。处理器400可以调用存储器401中的逻辑指令，以执行上述实施例的用于控制空调防凝露的方法。
此外，上述的存储器401中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器401作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令/模块。处理器400通过运行存储在存储器401中的程序指令/模块，从而执行功能应用以及数据处理，即实现上述实施例中用于控制空调防凝露的方法。
存储器401可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器401可以包括高速随机存取存储器，还可以包括非易失性存储器。
本公开实施例提供了一种空调器，包含上述的用于控制空调防凝露的装置。
本公开实施例提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述用于控制空调防凝露的方法。
本公开实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述用于控制空调防凝露的方法。
上述的计算机可读存储介质可以是暂态计算机可读存储介质，也可以是非暂态计算机可读存储介质。
本公开实施例的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等多种 可以存储程序代码的介质，也可以是暂态存储介质。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。而且，本申请中使用的用词仅用于描述实施例并且不用于限制权利要求。如在实施例以及权利要求的描述中使用的，除非上下文清楚地表明，否则单数形式的“一个”(a)、“一个”(an)和“所述”(the)旨在同样包括复数形式。类似地，如在本申请中所使用的术语“和/或”是指包含一个或一个以上相关联的列出的任何以及所有可能的组合。另外，当用于本申请中时，术语“包括”(comprise)及其变型“包括”(comprises)和/或包括(comprising)等指陈述的特征、整体、步骤、操作、元素，和/或组件的存在，但不排除一个或一个以上其它特征、整体、步骤、操作、元素、组件和/或这些的分组的存在或添加。在没有更多限制的情况下，由语句“包括一个...”限定的要素，并不排除在包括所述要素的过程、方法或者设备中还存在另外的相同要素。本文中，每个实施例重点说明的可以是与其他实施例的不同之处，各个实施例之间相同相似部分可以互相参见。对于实施例公开的方法、产品等而言，如果其与实施例公开的方法部分相对应，那么相关之处可以参见方法部分的描述。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，可以取决于技术方案的特定应用和设计约束条件。所述技术人员可以对每个特定的应用来使用不同方法以实现所描述的功能，但是这种实现不应认为超出本公开实施例的范围。所述技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。所述作为分离部 件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例。另外，在本公开实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
附图中的流程图和框图显示了根据本公开实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。在附图中的流程图和框图所对应的描述中，不同的方框所对应的操作或步骤也可以以不同于描述中所披露的顺序发生，有时不同的操作或步骤之间不存在特定的顺序。例如，两个连续的操作或步骤实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。

Claims (10)

  1. 一种用于控制空调防凝露的方法，其特征在于，包括：
    获取空调内机盘管第一温度变化率；
    在所述空调内机盘管第一温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行；
    在所述空调内机盘管第一温度变化率大于或等于所述第二阈值的情况下，获取压缩机的运行频率；
    根据所述压缩机的运行频率，确定所述压缩机或所述内机风机的运行策略，控制所述压缩机或所述内机风机在所述运行策略下运行。
  2. 根据权利要求1所述的方法，其特征在于，所述根据压缩机的频率，确定所述压缩机或所述内机风机的运行策略，包括：
    在所述压缩机的运行频率小于第一频率且大于第二频率的情况下，控制所述压缩机回油，并控制所述压缩机的运行频率提升至所述第一频率；所述压缩机运行第一时长后，控制所述压缩机的运行频率恢复至提升前的运行频率；
    在所述压缩机的频率大于或等于第一频率的情况下，控制所述内机风机的转速提升设定转速。
  3. 根据权利要求2所述的方法，其特征在于，包括：
    在所述压缩机的运行频率小于所述第二频率的情况下，控制所述压缩机回油，并控制所述压缩机的运行频率提升至第二频率；所述压缩机运行第二时长后，控制所述压缩机的运行频率恢复至提升前的运行频率；
    其中，第一时长长于第二时长。
  4. 根据权利要求2所述的方法，其特征在于，所述控制压缩机的频率恢复至提升前的频率后，所述方法还包括：
    获取空调内机盘管第二温度变化率；
    在空调内机盘管第二温度变化率大于或等于第二阈值的情况下，控制所述内机风机转速提升设定转速。
  5. 根据权利要求1所述的方法，其特征在于，所述确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行，包括：
    控制所述内机风机的转速提升设定转速；
    在运行设定时长后，获取空调内机盘管第三温度变化率；
    如果所述空调内机盘管第三温度变化率大于或等于第一阈值且小于第二阈值，则控制所述内机风机再次提升设定转速。
  6. 根据权利要求5所述的方法，其特征在于，所述控制所述内机风机再次提升设定转速，包括：
    如果再次提升设定转速后，所述内机风机的转速超出所述内机风机的最大转速，则控制所述内机风机以最大转速运行。
  7. 根据权利要求1至5任一项所述的方法，其特征在于，所述获取空调内机盘管第一温度变化率前，还包括：
    获取压缩机频率、内机风机的转速和外机风机的转速；
    在所述压缩机频率、内机风机和外机风机的转速处于不变状态下，获取空调内机盘管第一温度变化率。
  8. 一种用于控制空调防凝露的装置，其特征在于，包括：
    温度传感器模块，被配置为获取空调内机盘管温度变化率；
    第一控制模块，被配置为在所述空调内机盘管温度变化率大于或等于第一阈值且小于第二阈值的情况下，确定内机风机的运行参数，控制所述内机风机在所述运行参数下运行；
    第二控制模块，被配置为在所述空调内机盘管温度变化率大于或等于所述第二阈值的情况下，获取压缩机的运行频率；根据所述压缩机的运行频率，确定所述压缩机或所述内机风机的运行策略，控制所述压缩机或所述内机风机在所述的运行策略下运行。
  9. 一种用于控制空调防凝露的装置，包括处理器和存储有程序指令的存储器，其特征在于，所述处理器被配置为在执行所述程序指令时，执行如权利要求1至7任一项所述的用于控制空调防凝露的方法。
  10. 一种空调器，其特征在于，包括如权利要求8或9所述的用于控制空调防凝露的装置。
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