WO2023093048A1 - 用于保护盘管的方法及装置、空调器 - Google Patents

用于保护盘管的方法及装置、空调器 Download PDF

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Publication number
WO2023093048A1
WO2023093048A1 PCT/CN2022/102722 CN2022102722W WO2023093048A1 WO 2023093048 A1 WO2023093048 A1 WO 2023093048A1 CN 2022102722 W CN2022102722 W CN 2022102722W WO 2023093048 A1 WO2023093048 A1 WO 2023093048A1
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Prior art keywords
difference
coil
opening
speed
air conditioner
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PCT/CN2022/102722
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English (en)
French (fr)
Inventor
李江飞
陈营
陈睿
郭敏
刘帅
周星宇
马玉奇
矫立涛
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 WO2023093048A1 publication Critical patent/WO2023093048A1/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
    • F24F11/62—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
    • F24F11/30—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
    • F24F11/70—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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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 smart home appliances, for example, to a method and device for protecting a coil, and an air conditioner.
  • air conditioners As a daily electrical appliance, air conditioners are widely used in people's lives. Their cooling and heating functions enable consumers to obtain a better living and working environment indoors.
  • the protection of key components has also become the primary task for major manufacturers to solve.
  • the inner coil of the air conditioner will be damaged due to overheating when the air conditioner is heating for a long time, and there is a risk of frost on the surface when the air conditioner is cooling for a long time.
  • the current protection method for the inner coil of the air conditioner is mainly to ensure the normal operation of the air conditioner by adjusting the operating frequency of the compressor.
  • the existing internal disk protection mechanism ensures the normal operation of the air conditioner by raising and lowering the frequency, but this method will lead to poor stability in the operation of the air conditioner.
  • the embodiments of the present disclosure provide a method and device for protecting a coil, and an air conditioner, so as to improve the running stability of the air conditioner.
  • the above method includes: acquiring the coil temperature value; calculating the first difference between the coil temperature value and the protection temperature value; The size of the value adjusts the opening degree of the electronic expansion valve and the fan speed.
  • the above-mentioned apparatus includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for protecting a coil when running the program instructions.
  • the above-mentioned air conditioner includes: the above-mentioned device for protecting the coil.
  • the operation mode of the air conditioner is controlled through the relationship between the coil temperature and the protection temperature difference.
  • the difference between the coil temperature and the protection temperature is small, there is no need to adjust the coil temperature by controlling the frequency of the compressor or shutting down the system, which has a relatively large impact on the system.
  • the rotation speed can achieve the purpose of reducing the coil temperature to protect the coil, thus effectively improving the stability of the air conditioner operation.
  • FIG. 1 is a schematic diagram of a method for protecting a coil provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of another method for protecting a coil provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of another method for protecting a coil provided by an embodiment of the present disclosure.
  • Fig. 4 is a schematic diagram of another method for protecting a coil provided by an embodiment of the present disclosure.
  • Fig. 5 is a schematic diagram of another method for protecting a coil provided by an embodiment of the present disclosure.
  • Fig. 6 is a schematic diagram of a device for protecting a coil 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, these three relationships.
  • correspondence may refer to an association relationship or a binding relationship, and the correspondence between A and B means that there is an association relationship or a binding relationship between A and B.
  • an embodiment of the present disclosure provides a method for protecting coiled pipes, including:
  • the air conditioner obtains the coil temperature value.
  • the air conditioner calculates the first difference between the coil temperature value and the protection temperature value.
  • the air conditioner adjusts the opening degree of the electronic expansion valve and the fan speed according to the magnitude of the first difference when the first difference is less than or equal to the difference threshold.
  • the operation mode of the air conditioner can be controlled through the relationship between the coil temperature and the protection temperature difference.
  • the difference between the coil temperature and the protection temperature is small, there is no need to adjust the coil temperature by controlling the frequency of the compressor or shutting down the system, which has a relatively large impact on the system.
  • the rotation speed can achieve the purpose of reducing the coil temperature to protect the coil, thus effectively improving the stability of the air conditioner operation.
  • an embodiment of the present disclosure provides another method for protecting coiled pipes, including:
  • the air conditioner obtains the coil temperature value.
  • the air conditioner calculates the first difference between the coil temperature value and the protection temperature value.
  • the air conditioner determines an opening compensation value and a rotation speed compensation value corresponding to the first difference when the first difference is less than or equal to the difference threshold.
  • the air conditioner controls the opening of the electronic expansion valve according to the compensation value of the opening, and controls the speed of the fan according to the compensation value of the rotation speed.
  • the temperature adjustment under the condition of small temperature difference can be realized by adjusting the opening degree of the electronic expansion valve and the fan speed, avoiding the impact on the system by directly adjusting the operating frequency of the compressor. the impact caused.
  • the air conditioner is running in cooling mode, if the difference between the calculated coil temperature value and the protection temperature value is less than 3 degrees, it is considered that the coil needs to increase the temperature value.
  • the operating frequency of the compressor to adjust the temperature of the coil, only the opening of the electronic expansion valve and the speed of the fan are compensated accordingly to realize the adjustment of the coil temperature.
  • the air conditioner When the air conditioner is running in heating mode, if the difference between the calculated coil temperature value and the protection temperature value is less than 2 degrees, it is considered that the coil needs to reduce the temperature value. At this time, there is no need to adjust the operating frequency of the compressor to adjust the temperature of the coil, only the opening of the electronic expansion valve and the speed of the fan are compensated accordingly to realize the adjustment of the coil temperature.
  • the air conditioner controls the opening of the electronic expansion valve according to the opening compensation value, and controls the fan speed according to the rotation speed compensation value, including: the air conditioner determines the target opening value according to the initial opening value and the opening compensation value and Adjust the opening of the electronic expansion valve to the target opening value; the air conditioner determines the target speed and adjusts the fan speed to the target speed according to the initial speed and the speed compensation value.
  • the temperature of the coil can be better regulated to avoid damage to the coil due to frost or high temperature.
  • Select the corresponding compensation value according to the size of the difference, so as to adjust the temperature value of the coil without affecting the normal operation of the air conditioner. For example, when the air conditioner is running in heating mode, the calculated difference between the coil temperature value and the protection temperature value is less than 2 degrees and the coil temperature value is greater than the protection temperature value, then the current electronic expansion valve opening and the current The fan speed is set to the initial opening value and initial speed. Through the preset corresponding relationship, the opening compensation value is 80 steps, and the corresponding speed compensation value is 15% of the current fan speed.
  • an embodiment of the present disclosure provides another method for protecting coiled pipes, including:
  • the air conditioner obtains the coil temperature value.
  • the air conditioner calculates the first difference between the coil temperature value and the protection temperature value.
  • the air conditioner determines an opening compensation value and a rotation speed compensation value corresponding to the first difference when the first difference is less than or equal to the difference threshold.
  • the air conditioner controls the opening of the electronic expansion valve according to the compensation value of the opening, and controls the speed of the fan according to the compensation value of the rotation speed.
  • the air conditioner obtains the current coil temperature value when the air conditioner operates according to the target opening degree and the target rotational speed for a time period greater than or equal to the first set time period.
  • the air conditioner controls the operating frequency of the compressor according to the current coil temperature value.
  • the opening of the electronic expansion valve can be adjusted in time by obtaining the temperature of the coil again and fan speed.
  • the air conditioner initially adjusts the electronic expansion valve opening and fan speed, obtain the coil temperature again to correct the electronic expansion valve opening And fan speed, so as to ensure the efficiency of coil temperature regulation.
  • the air conditioner controls the operating frequency of the compressor according to the current coil temperature value, including: the air conditioner calculates a second difference between the current coil temperature value and the protection temperature value; the air conditioner controls the compressor according to the second difference machine operating frequency.
  • the air conditioner controls the operating frequency of the compressor according to the second difference, including: when the second difference is greater than the first difference, the air conditioner controls the compressor to run at the current frequency, and the target opening and the target rotation speed until the preset condition is met; the air conditioner controls the compressor to adjust the operating frequency or stop running when the second difference is less than or equal to the first difference.
  • the inner coil can be better protected from being damaged.
  • the judgment method of comparing the current difference with a fixed value it can be more intuitive to display whether the opening degree of the electronic expansion valve currently running and the speed of the fan are reasonable. If the current difference is smaller than the previous difference, it is considered that the current opening of the electronic expansion valve and the speed of the fan are reasonable, and the operation continues according to the current opening of the electronic expansion valve and the speed of the fan. When the current difference is greater than or equal to the last difference, it is considered that the current opening of the electronic expansion valve and the fan speed are reasonable.
  • the adjustment method is replaced.
  • the coil temperature can be adjusted by properly adjusting the operating frequency of the compressor.
  • the coil temperature can be adjusted by properly adjusting the operating frequency of the compressor.
  • the air conditioner runs according to the target opening degree and the target speed until the preset condition is met, including: when the air conditioner operates according to the target opening degree and the target speed for a period greater than or equal to the second set time length, respectively Adjust the electronic expansion valve opening and fan speed to the initial opening value and initial speed; or, when the coil temperature is greater than or equal to the temperature threshold, the air conditioner adjusts the electronic expansion valve opening and fan speed to the initial opening value respectively. Degree value and initial speed.
  • the temperature adjustment efficiency of the air conditioner can be better maintained.
  • the electronic expansion valve and the fan are controlled to run according to the current state to meet the preset conditions, so as to avoid affecting the indoor temperature adjustment due to the coil temperature adjustment time being too long. For example, when the air conditioner is running in heating mode and the running time after calculating the difference is longer than 5 minutes, control the opening of the electronic expansion valve to decrease at a speed of 10 steps/30 seconds, and control the speed of the fan at 10 rpm. /20 sec speed drop.
  • the opening of the electronic expansion valve is controlled to decrease at a speed of 10 steps/30 seconds, and the speed of the fan is controlled to 10 rpm/20 sec speed drop.
  • an embodiment of the present disclosure provides another method for protecting coiled pipes, including:
  • the air conditioner obtains the coil temperature value.
  • the air conditioner calculates the first difference between the coil temperature value and the protection temperature value.
  • the air conditioner adjusts the opening degree of the electronic expansion valve and the fan speed according to the magnitude of the first difference.
  • the air conditioner controls the compressor to adjust the running frequency or stop running when the first difference is greater than the difference threshold.
  • the inner coil can be better protected from damage.
  • the difference between the air conditioner coil temperature value and the protection temperature value is greater than the difference threshold, it is determined that the effect of protecting the coil cannot be achieved by adjusting the opening of the electronic expansion valve and the fan speed.
  • the opening of the electronic expansion valve and the speed of the fan are supplemented by adjusting the operating frequency of the compressor, so that the compressor can be correspondingly avoided.
  • the impact caused by excessive frequency changes and the efficiency of adjusting the temperature of the coil are improved.
  • an embodiment of the present disclosure provides another method for protecting coiled pipes, including:
  • the air conditioner obtains the coil temperature value.
  • the air conditioner calculates the first difference between the coil temperature value and the protection temperature value.
  • the air conditioner determines an opening compensation value and a rotation speed compensation value corresponding to the first difference when the first difference is less than or equal to the difference threshold.
  • the air conditioner controls the opening of the electronic expansion valve according to the compensation value of the opening, and controls the speed of the fan according to the compensation value of the rotation speed.
  • the air conditioner controls the compressor to adjust the running frequency or stop running when the first difference is greater than the difference threshold.
  • the inner coil can be better protected from damage.
  • the difference between the air conditioner coil temperature value and the protection temperature value is greater than the difference threshold, it is determined that the effect of protecting the coil cannot be achieved by adjusting the opening of the electronic expansion valve and the fan speed.
  • the opening of the electronic expansion valve and the speed of the fan are supplemented by adjusting the operating frequency of the compressor.
  • the target opening value and target speed are obtained by adding the opening compensation value and speed compensation value on the basis of the current electronic expansion valve opening value and the current fan speed, and the opening and speed of the electronic expansion valve are controlled by the target opening value and target speed.
  • the speed of the fan and the adjustment of the operating frequency of the compressor increase the temperature value of the inner coil, thereby avoiding the impact caused by excessive changes in the operating frequency of the compressor and improving the efficiency of adjusting the temperature of the coil.
  • an embodiment of the present disclosure provides a device for protecting a coil, including a processor (processor) 100 and a memory (memory) 101 .
  • the device may also include a communication interface (Communication Interface) 102 and a bus 103.
  • Communication interface 102 may be used for information transfer.
  • the processor 100 can call the logic instructions in the memory 101 to execute the method for protecting the coil in the above embodiment.
  • the above logic instructions in the memory 101 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 101 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 100 executes the program instructions/modules stored in the memory 101 to execute functional applications and data processing, that is, to realize the method for protecting the coil in the above-mentioned embodiments.
  • the memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal device, and the like.
  • the memory 101 may include a high-speed random access memory, and may also include a non-volatile memory.
  • An embodiment of the present disclosure provides an air conditioner, including the above-mentioned device for protecting a coil.
  • An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned method for protecting a coil.
  • the above-mentioned storage medium may be a transient storage medium or a non-transitory storage medium.
  • the technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which 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 perform all or part of the steps of the method described in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, 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 listed ones.
  • the term “comprise” and its variants “comprises” and/or comprising (comprising) etc. 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 defined by the phrase “comprising a " does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units may only be a logical function division.
  • multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions.
  • the functions noted in the block may occur out of the order noted in the figures.
  • two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps.
  • each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

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Abstract

一种用于保护盘管的方法、装置及空调器，该方法包括：获取盘管温度值；计算盘管温度值与保护温度值的第一差值；在第一差值小于或等于差值阈值的情况下，根据第一差值的大小调节电子膨胀阀的开度和风机转速。在内盘管需要进行自保护进程时，通过盘管温度与保护温度差值的大小关系，来控制空调器的运行方式。在盘管温度与保护温度差值较小的情况下，无需通过控制压缩机升降频或停机等对系统冲击比较大的方式来调节盘管温度，只需要通过调节电子膨胀阀的开度和风机转速即可达到降低盘管温度以保护盘管的目的，从而有效的提升了空调器运行的稳定性。

Description

用于保护盘管的方法及装置、空调器
本申请基于申请号为202111415797.8、申请日为2021年11月25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
本申请涉及智能家电技术领域，例如涉及一种用于保护盘管的方法及装置、空调器。
背景技术
空调作为一种日常的生活电器，广泛地应用到人们的生活当中，其制冷、制热的功能使消费者在室内可获得更好的生活、工作环境。
目前，由于空调器利用率的提高，针对关键零部件的保护也成为各大厂商所要解决的首要任务。其中空调器的内盘管在空调器长时间制热的情况下会因为过热而导致损坏，在空调器长时间制冷的情况下存在表面结霜的风险。当前对于空调器的内盘管的保护方式主要是通过调节压缩机的运行频率来保证空调器的正常运行。
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：
现有的内盘保护机制是通过升降频来保证空调器正常运行的，但是此方式会导致空调器运行的平稳性较差。
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保护盘管的方法及装置、空调器，以提升空调器运行的平稳性。
在一些实施例中，上述方法包括：获取盘管温度值；计算盘管温度值与保护温度值的第一差值；在第一差值小于或等于差值阈值的情况下，根据第一差值的大小调节电子膨胀阀的开度和风机转速。
在一些实施例中，上述装置包括：处理器和存储有程序指令的存储器，处理器被配置为在运行程序指令时，执行上述用于保护盘管的方法。
在一些实施例中，上述空调器包括：如上述用于保护盘管的装置。
本公开实施例提供的用于保护盘管的方法及装置、空调器，可以实现以下技术效果：
在内盘管需要进行自保护进程时，通过盘管温度与保护温度差值的大小关系，来控制空调器的运行方式。在盘管温度与保护温度差值较小的情况下，无需通过控制压缩机升降频或停机等对系统冲击比较大的方式来调节盘管温度，只需要通过调节电子膨胀阀的开度和风机转速即可达到降低盘管温度以保护盘管的目的，从而有效的提升了空调器运行的稳定性。
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保护盘管的方法的示意图；
图2是本公开实施例提供的另一个用于保护盘管的方法的示意图；
图3是本公开实施例提供的另一个用于保护盘管的方法的示意图；
图4是本公开实施例提供的另一个用于保护盘管的方法的示意图；
图5是本公开实施例提供的另一个用于保护盘管的方法的示意图；
图6是本公开实施例提供的一个用于保护盘管的装置的示意图。
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。
术语“对应”可以指的是一种关联关系或绑定关系，A与B相对应指的是A与B之间是一种关联关系或绑定关系。
结合图1所示，本公开实施例提供一种用于保护盘管的方法，包括：
S01，空调器获取盘管温度值。
S02，空调器计算盘管温度值与保护温度值的第一差值。
S03，空调器在第一差值小于或等于差值阈值的情况下，根据第一差值的大小调节电子膨胀阀的开度和风机转速。
采用本公开实施例提供的用于保护盘管的方法，能在内盘管需要进行自保护进程时，通过盘管温度与保护温度差值的大小关系，来控制空调器的运行方式。在盘管温度与保护温度差值较小的情况下，无需通过控制压缩机升降频或停机等对系统冲击比较大的方式来调节盘管温度，只需要通过调节电子膨胀阀的开度和风机转速即可达到降低盘管温度以保护盘管的目的，从而有效的提升了空调器运行的稳定性。
结合图2所示，本公开实施例提供另一种用于保护盘管的方法，包括：
S01，空调器获取盘管温度值。
S02，空调器计算盘管温度值与保护温度值的第一差值。
S031，空调器在第一差值小于或等于差值阈值的情况下，确定与第一差值相对应的开度补偿值和转速补偿值。
S032，空调器根据开度补偿值控制电子膨胀阀的开度，并根据转速补偿值控制风机的转速。
采用本公开实施例提供的用于保护盘管的方法，能通过调节电子膨胀阀的开度和风机转速来实现温差较小的情况下的温度调节，避免了直接调节压缩机的运行频率对系统所造成的冲击。例如，在空调器运行制冷模式的情况下，经计算盘管温度值与保护温度值的差值小于3度，则认为盘管需提升温度值。此时，无需通过调节压缩机运行频率的方式来调节盘管温度，仅需对电子膨胀阀的开度及风机转速进行相应的补偿即可实现盘管温度的调节。在空调器运行制热模式的情况下，经计算盘管温度值与保护温度值的差值小于2度，则认为盘管需降低温度值。此时，无需通过调节压缩机运行频率的方式来调节盘管温度，仅需对电子膨胀阀的开度及风机转速进行相应的补偿即可实现盘管温度的调节。
可选地，空调器根据开度补偿值控制电子膨胀阀的开度，并根据转速补偿值控制风机的转速，包括：空调器根据初始开度值与开度补偿值，确定目标开度值并将电子膨胀阀的开度调节至目标开度值；空调器根据初始转速与转速补偿值，确定目标转速并将风机的转速调节至目标转速。
这样，能更好地调节盘管的温度，避免盘管由于结霜或高温造成损坏。通过差值的大小选取相对应的补偿值，以使在不影响空调器正常工作的情况下，调节盘管的温度值。例如，在空调器运行制热模式的情况下，经计算盘管温度值与保护温度值的差值小于2度且盘管温度值大于保护温度值，则将当前电子膨胀阀的开度和当前风机转速设置为初始开度值和初始转速。通过预设的对应关系得到开度补偿值为80步，相应的转速补偿值为当前风机转速的15％。在初始开度值和初始转速的基础上增加开度补偿值和转速补偿值得到目标开度值和目标转速，通过目标开度值和目标转速控制电子膨胀阀的开度和风机的转速，提升内盘管的温度值。
结合图3所示，本公开实施例提供另一种用于保护盘管的方法，包括：
S01，空调器获取盘管温度值。
S02，空调器计算盘管温度值与保护温度值的第一差值。
S031，空调器在第一差值小于或等于差值阈值的情况下，确定与第一差值相对应的开度补偿值和转速补偿值。
S032，空调器根据开度补偿值控制电子膨胀阀的开度，并根据转速补偿值控制风机的转速。
S04，空调器在空调器根据目标开度和目标转速运行的时长大于或等于第一设定时长的情况下，获取当前盘管温度值。
S05，空调器根据当前盘管温度值，控制压缩机的运行频率。
采用本公开实施例提供的用于保护盘管的方法，能在按照调节后的电子膨胀阀的开度和风机的转速运行一段时间后，通过再次获取盘管温度及时调整电子膨胀阀的开度和风机的转速。为了避免当前的电子膨胀阀的开度和风机转速调节盘管温度的效率不足，在空调器初步调整过电子膨胀阀的开度和风机转速后再次获取盘管温度以修正电子膨胀阀的开度和风机转速，从而保证盘管温度调节的效率。
可选地，空调器根据当前盘管温度值，控制压缩机的运行频率，包括：空调器计算当前盘管温度值与保护温度值的第二差值；空调器根据第二差值，控制压缩机的运行频率。
这样，能更好地保证盘管温度调节的效率。通过计算当前盘管温度值与保护温度值的差值，在差值较大的情况下，再次调节电子膨胀阀的开度和风机转速，以避免引起对室内 温度调节的较大波动。在差值较小的情况下，再次调节电子膨胀阀的开度和风机转速，以提升盘管温度调节的效率，避免对盘管造成破坏。
可选地，空调器根据第二差值，控制压缩机的运行频率，包括：空调器在第二差值大于第一差值的情况下，控制压缩机按当前频率运行，并按照目标开度和所述目标转速运行直至满足预设条件；空调器在第二差值小于或等于第一差值的情况下，控制压缩机调节运行频率或停止运行。
这样，能更好地保护内盘管不被损坏。通过当前差值与上次差值的大小，相比于当前差值对比固定值的判定方式，可以更加直观的显示当前运行的电子膨胀阀的开度和风机转速是否合理。在当前差值小于上次差值的情况下，认为当前的电子膨胀阀的开度和风机转速是合理的，则按照当前的电子膨胀阀的开度和风机转速继续运行。在当前差值大于或等于上次差值的情况下，认为当前的电子膨胀阀的开度和风机转速是合理的。此时，判定当前的电子膨胀阀的开度和风机转速对于盘管温度的调节处于无效状态，更换调节方式。在当前差值等于上次差值的情况下，可以通过适当的调节压缩机的运行频率来调节盘管温度。在当前差值大于上次差值的情况下，可以通过适当的调节压缩机的运行频率来调节盘管温度。在当前差值超出上次差值的值大于相应阈值的情况下，判定当前通过调节压缩机频率依旧可能对盘管造成损坏，控制压缩机停止运行以调节盘管温度。
可选地，空调器按照目标开度和所述目标转速运行直至满足预设条件，包括：空调器在按照目标开度和目标转速运行的时长大于或等于第二设定时长的情况下，分别将电子膨胀阀开度和风机转速调整至初始开度值和初始转速；或，空调器在盘管温度大于或等于温度阈值的情况下，分别将电子膨胀阀开度和风机转速调整至初始开度值和初始转速。
这样，能更好地保持空调器的调温效率。在判定当前的电子膨胀阀的开度和风机转速是合理的情况下，控制电子膨胀阀和风机按照当前状态运行至符合预设条件，避免由于盘管温度调节时间过长影响室内温度调节。例如，在空调器运行制热模式且再次计算差值后的运行时长大于5分钟的情况下，控制电子膨胀阀的开度以10步/30秒的速度减小，控制风机的转速以10转/20秒的速度下降。或是，在空调器运行制热模式且检测到盘管温度以达到可以通过余温调节的情况下，控制电子膨胀阀的开度以10步/30秒的速度减小，控制风机的转速以10转/20秒的速度下降。
结合图4所示，本公开实施例提供另一种用于保护盘管的方法，包括：
S01，空调器获取盘管温度值。
S02，空调器计算盘管温度值与保护温度值的第一差值。
S03，空调器在第一差值小于或等于差值阈值的情况下，根据第一差值的大小调节电 子膨胀阀的开度和风机转速。
S06，空调器在第一差值大于差值阈值的情况下，控制压缩机调节运行频率或停止运行。
采用本公开实施例提供的用于保护盘管的方法，能更好地保护内盘管不被损坏。在空调器盘管温度值与保护温度值的差值大于差值阈值的情况下，判定通过调节电子膨胀阀的开度和风机转速已经不能达到保护盘管的效果，此时需要根据差值的大小选取合适的压缩机运行频率，以防止盘管被损坏。同时，为了尽可能的避免压缩机直接停机对空调器运行所带来的冲击，在调节压缩机运行频率的同时辅以调节电子膨胀阀的开度和风机转速，从而可以相应的避免压缩机运行频率变化过大所带来的冲击以及提升调节盘管温度的效率。
结合图5所示，本公开实施例提供另一种用于保护盘管的方法，包括：
S01，空调器获取盘管温度值。
S02，空调器计算盘管温度值与保护温度值的第一差值。
S031，空调器在第一差值小于或等于差值阈值的情况下，确定与第一差值相对应的开度补偿值和转速补偿值。
S032，空调器根据开度补偿值控制电子膨胀阀的开度，并根据转速补偿值控制风机的转速。
S06，空调器在第一差值大于差值阈值的情况下，控制压缩机调节运行频率或停止运行。
采用本公开实施例提供的用于保护盘管的方法，能更好地保护内盘管不被损坏。在空调器盘管温度值与保护温度值的差值大于差值阈值的情况下，判定通过调节电子膨胀阀的开度和风机转速已经不能达到保护盘管的效果，此时需要根据差值的大小选取合适的压缩机运行频率，以防止盘管被损坏。同时，为了尽可能的避免压缩机直接停机对空调器运行所带来的冲击，在调节压缩机运行频率的同时辅以调节电子膨胀阀的开度和风机转速。通过在当前电子膨胀阀开度值和当前风机转速的基础上增加开度补偿值和转速补偿值得到目标开度值和目标转速，通过目标开度值和目标转速控制电子膨胀阀的开度和风机的转速，配合压缩机运行频率的调节提升内盘管的温度值，从而可以相应的避免压缩机运行频率变化过大所带来的冲击以及提升调节盘管温度的效率。
结合图6所示，本公开实施例提供一种用于保护盘管的装置，包括处理器(processor)100和存储器(memory)101。可选地，该装置还可以包括通信接口(Communication Interface)102和总线103。其中，处理器100、通信接口102、存储器101可以通过总线103完成相互间的通信。通信接口102可以用于信息传输。处理器100可以调用存储器101中的逻辑 指令，以执行上述实施例的用于保护盘管的方法。
此外，上述的存储器101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101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100通过运行存储在存储器101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保护盘管的方法。
存储器101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101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，包含上述的用于保护盘管的装置。
本公开实施例提供了一种存储介质，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保护盘管的方法。
上述的存储介质可以是暂态存储介质，也可以是非暂态存储介质。
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. 一种用于保护盘管的方法，其特征在于，包括：
    获取盘管温度值；
    计算盘管温度值与保护温度值的第一差值；
    在所述第一差值小于或等于差值阈值的情况下，根据所述第一差值的大小调节电子膨胀阀的开度和风机转速。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述第一差值的大小调节电子膨胀阀的开度和风机转速，包括：
    确定与所述第一差值相对应的开度补偿值和转速补偿值；
    根据所述开度补偿值控制电子膨胀阀的开度，并根据所述转速补偿值控制风机的转速。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述开度补偿值控制电子膨胀阀的开度，并根据所述转速补偿值控制风机的转速，包括：
    根据初始开度值与所述开度补偿值，确定目标开度值并将电子膨胀阀的开度调节至所述目标开度值；
    根据初始转速与所述转速补偿值，确定目标转速并将风机的转速调节至所述目标转速。
  4. 根据权利要求2所述的方法，其特征在于，在所述根据所述第一差值的大小调节电子膨胀阀的开度和风机转速之后，还包括：
    在空调器根据所述目标开度和所述目标转速运行的时长大于或等于第一设定时长的情况下，获取当前盘管温度值；
    根据所述当前盘管温度值，控制压缩机的运行频率。
  5. 根据权利要求4所述的方法，其特征在于，所述根据所述当前盘管温度值，控制压缩机的运行频率，包括：
    计算所述当前盘管温度值与所述保护温度值的第二差值；
    根据所述第二差值，控制压缩机的运行频率。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述第二差值，控制压缩机的运行频率，包括：
    在所述第二差值大于所述第一差值的情况下，控制压缩机按当前频率运行，并控制空调器按照所述目标开度和所述目标转速运行直至满足预设条件；
    在所述第二差值小于或等于所述第一差值的情况下，控制压缩机调节运行频率或 停止运行。
  7. 根据权利要求6所述的方法，其特征在于，所述控制空调器按照所述目标开度和所述目标转速运行直至满足预设条件，包括：
    在空调器按照所述目标开度和所述目标转速运行的时长大于或等于第二设定时长的情况下，分别将电子膨胀阀开度和风机转速调整至初始开度值和初始转速；或，
    在盘管温度大于或等于温度阈值的情况下，分别将电子膨胀阀开度和风机转速调整至初始开度值和初始转速。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，在所述计算盘管温度值与保护温度值的第一差值之后，还包括：
    在所述第一差值大于差值阈值的情况下，控制压缩机调节运行频率或停止运行。
  9. 一种用于保护盘管的装置，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运行所述程序指令时，执行如权利要求1至8任一项所述的用于保护盘管的方法。
  10. 一种空调器，其特征在于，包括如权利要求9所述的用于保护盘管的装置。
PCT/CN2022/102722 2021-11-25 2022-06-30 用于保护盘管的方法及装置、空调器 WO2023093048A1 (zh)

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