Method and device for controlling an electronic expansion valve, air conditioner, and storage medium

Abstract

The present application relates to the technical field of smart home appliances, and discloses a method for controlling an electronic expansion valve, including: obtaining the compressor frequency and the current operating mode; determining the target temperature according to the current operating mode; determining the defrost correction coefficient according to the current operating mode; determining the target discharge air temperature according to the target temperature, the compressor frequency and the defrost correction coefficient; and controlling the operation of the electronic expansion valve according to the target discharge air temperature. In this way, since different parameters have different effects on the target discharge air temperature under different current operating modes. Therefore, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target discharge air temperature is calculated. The target discharge air temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner. The present application also discloses a device for controlling an electronic expansion valve, an air conditioner and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent household appliances, and for example, relates to a method and device for controlling an electronic expansion valve, an air conditioner, and a storage medium. Background Art

[0002] Generally, during the operation of an air conditioner, it is necessary to control the electronic expansion valve to adjust the cooling capacity of the air conditioner so that the air conditioner can have a better cooling effect. In the related art, the discharge air temperature is usually calculated based on the compressor frequency and the outdoor ambient temperature, and then the electronic expansion valve is controlled according to the discharge air temperature.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art: only calculating the discharge air temperature based on the compressor frequency and the outdoor ambient temperature, the calculated discharge air temperature is unreasonable, resulting in unreasonable control of the electronic expansion valve and poor cooling effect of the air conditioner. Summary of the Invention

[0004] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not an extensive review, nor is it intended to identify key / important elements or delineate the scope of protection of these embodiments. Instead, it serves as a preamble to the following detailed description.

[0005] The embodiments of the present disclosure provide a method and device for controlling an electronic expansion valve, an air conditioner, and a storage medium, so as to improve the cooling effect of the air conditioner.

[0006] In some embodiments, the method for controlling an electronic expansion valve includes: obtaining the compressor frequency and the current operation mode; determining the target temperature according to the current operation mode; determining the defrost correction coefficient according to the current operation mode; determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient; and controlling the operation of the electronic expansion valve according to the target discharge air temperature.

[0007] In some embodiments, the current operation mode is a cooling operation mode or a heating operation mode. Determining the target temperature according to the current operation mode includes: in the case where the current operation mode is a cooling operation mode, obtaining the outdoor ambient temperature; determining the outdoor ambient temperature as the target temperature; and / or, in the case where the current operation mode is a heating operation mode, obtaining the indoor ambient temperature; determining the indoor ambient temperature as the target temperature.

[0008] In some embodiments, the current operating mode is a refrigeration operating mode or a heating operating mode. Determining a defrost correction factor according to the current operating mode includes: when the current operating mode is the refrigeration operating mode, determining a first preset value as the defrost correction factor; and / or when the current operating mode is the heating operating mode, obtaining the outdoor ambient temperature; determining the defrost correction factor according to the outdoor ambient temperature.

[0009] In some embodiments, determining the defrost correction factor according to the outdoor ambient temperature includes: when the outdoor ambient temperature is within a preset range, determining a first preset value as the defrost correction factor; otherwise, calculating according to a first preset algorithm using the outdoor ambient temperature to obtain the defrost correction factor.

[0010] In some embodiments, calculating according to a first preset algorithm using the outdoor ambient temperature to obtain the defrost correction factor includes: calculating d = 2 * │Tao + 2│ - 18 to obtain the defrost correction factor; where d is the defrost correction factor; Tao is the outdoor ambient temperature.

[0011] In some embodiments, determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction factor includes: obtaining a compressor coefficient, an outer ring temperature coefficient, and a conventional coefficient; determining the target discharge air temperature according to the compressor coefficient, the outer ring temperature coefficient, the conventional coefficient, the target temperature, the compressor frequency, and the defrost correction factor.

[0012] In some embodiments, determining the target discharge air temperature according to the compressor coefficient, the outer ring temperature coefficient, the conventional coefficient, the target temperature, the compressor frequency, and the defrost correction factor includes: calculating DisT = K1 * Hz + K2 * Tca + c + d to obtain the target discharge air temperature; where DisT is the target discharge air temperature; K1 is the compressor coefficient; Hz is the compressor frequency; K2 is the outer ring temperature coefficient; Tca is the target temperature; c is the conventional coefficient; d is the defrost correction factor.

[0013] In some embodiments, the device for controlling an electronic expansion valve includes: an acquisition module configured to acquire the compressor frequency and the current operating mode; a target temperature determination module configured to determine a target temperature according to the current operating mode; a defrost correction factor determination module configured to determine a defrost correction factor according to the current operating mode; a target discharge air temperature determination module configured to determine the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction factor; and an operation module configured to control the operation of the electronic expansion valve according to the target discharge air temperature.

[0014] In some embodiments, the air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the above method for controlling the electronic expansion valve when running the program instructions.

[0015] In some embodiments, the storage medium stores program instructions, and the program instructions execute the above method for controlling the electronic expansion valve when running.

[0016] The method, device, air conditioner, and storage medium for controlling an electronic expansion valve provided by the embodiments of the present disclosure can achieve the following technical effects: By obtaining the compressor frequency and the current operating mode. Determining the target temperature according to the current operating mode. Determining the defrost correction coefficient according to the current operating mode. Determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient. Controlling the operation of the electronic expansion valve according to the target discharge air temperature. In this way, since different parameters have different effects on the target discharge air temperature under different current operating modes. Therefore, determining the target temperature and the defrost correction coefficient according to the current operating mode, and then calculating the target discharge air temperature. It is possible to more reasonably determine the target discharge air temperature, thereby more reasonably adjusting the electronic expansion valve and improving the refrigeration effect of the air conditioner.

[0017] The above general description and the following description are only exemplary and explanatory, and are not used to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0019] Figure 1 is a schematic diagram of the first method for controlling an electronic expansion valve provided by the embodiments of the present disclosure;

[0020] Figure 2 is a schematic diagram of the second method for controlling an electronic expansion valve provided by the embodiments of the present disclosure;

[0021] Figure 3 is a schematic diagram of the third method for controlling an electronic expansion valve provided by the embodiments of the present disclosure;

[0022] Figure 4 is a schematic diagram of the fourth method for controlling an electronic expansion valve provided by the embodiments of the present disclosure;

[0023] Figure 5 is a schematic diagram of a device for controlling an electronic expansion valve provided by the embodiments of the present disclosure;

[0024] Figure 6It is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure. Detailed implementation manners

[0025] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other instances, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0026] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0027] Unless otherwise specified, the term "plurality" means two or more.

[0028] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0029] The term "and / or" is a description of the associated relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0030] This application is applied to an air conditioner to improve the refrigeration effect of the air conditioner. By obtaining the compressor frequency and the current operating mode. Determining the target temperature according to the current operating mode. Determining the defrost correction coefficient according to the current operating mode. Determining the target exhalation temperature according to the target temperature, the compressor frequency and the defrost correction coefficient. Controlling the operation of the electronic expansion valve according to the target exhalation temperature. In this way, since different parameters have different effects on the target exhalation temperature under different current operating modes. Therefore, determining the target temperature and the defrost correction coefficient according to the current operating mode, and then calculating the target exhalation temperature. The target exhalation temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0031] Combined with Figure 1 As shown, the first method for controlling an electronic expansion valve provided by the embodiments of the present disclosure includes:

[0032] Step S101, the air conditioner obtains the compressor frequency and the current operating mode.

[0033] Step S102, the air conditioner determines the target temperature according to the current operating mode.

[0034] Step S103, the air conditioner determines the defrost correction coefficient according to the current operating mode.

[0035] Step S104, the air conditioner determines the target exhalation temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient.

[0036] Step S105, the air conditioner controls the operation of the electronic expansion valve according to the target exhalation temperature.

[0037] By using the method for controlling the electronic expansion valve provided in the embodiments of the present disclosure, the compressor frequency and the current operating mode are obtained. The target temperature is determined according to the current operating mode. The defrost correction coefficient is determined according to the current operating mode. The target exhalation temperature is determined according to the target temperature, the compressor frequency, and the defrost correction coefficient. The operation of the electronic expansion valve is controlled according to the target exhalation temperature. In this way, since different parameters have different effects on the target exhalation temperature under different current operating modes. Therefore, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target exhalation temperature is calculated. The target exhalation temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0038] Optionally, the current operating mode is a refrigeration operating mode or a heating operating mode. Determining the target temperature according to the current operating mode includes: when the current operating mode is a refrigeration operating mode, obtaining the outdoor ambient temperature; determining the outdoor ambient temperature as the target temperature; and / or, when the current operating mode is a heating operating mode, obtaining the indoor ambient temperature; determining the indoor ambient temperature as the target temperature. Wherein, the current operating mode is the mode in which the air conditioner operates when executing the instruction to obtain the current operating mode. In this way, since the temperature has different effects on the target exhalation temperature under different current operating modes. When operating in the refrigeration operating mode, the outdoor ambient temperature is obtained as the target temperature. When operating in the heating operating mode, the indoor ambient temperature is obtained as the target temperature. It is more in line with the degree of influence of temperature on the target exhalation temperature. Thus, the target exhalation temperature can be determined more reasonably, so that the electronic expansion valve can be adjusted more reasonably and the refrigeration effect of the air conditioner can be improved.

[0039] Combined with Figure 2 As shown, the embodiments of the present disclosure provide a second method for controlling an electronic expansion valve, including:

[0040] Step S201, the air conditioner obtains the compressor frequency and the current operating mode, and then executes step S202.

[0041] Step S202, the air conditioner determines the defrost correction coefficient according to the current operating mode, and then executes step S203.

[0042] Step S203, the air conditioner determines whether the current operating mode is the cooling operating mode. If the current operating mode is the cooling operating mode, step S204 is executed. If the current operating mode is not the cooling operating mode, step S205 is executed.

[0043] Step S204, the air conditioner obtains the outdoor ambient temperature; determines the outdoor ambient temperature as the target temperature, and then executes step S207.

[0044] Step S205, the air conditioner determines whether the current operating mode is the heating operating mode. If the current operating mode is the heating operating mode, step S206 is executed; if the current operating mode is not the heating operating mode, step S209 is executed.

[0045] Step S206, the air conditioner obtains the indoor ambient temperature; determines the indoor ambient temperature as the target temperature, and then executes step S207.

[0046] Step S207, the air conditioner determines the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient, and then executes step S208.

[0047] Step S208, the air conditioner controls the operation of the electronic expansion valve according to the target discharge air temperature.

[0048] Step S209, end the process.

[0049] By using the method for controlling the electronic expansion valve provided in the embodiments of the present disclosure, the compressor frequency and the current operating mode are obtained. The target temperature is determined according to the current operating mode. The defrost correction coefficient is determined according to the current operating mode. The target discharge air temperature is determined according to the target temperature, the compressor frequency, and the defrost correction coefficient. The operation of the electronic expansion valve is controlled according to the target discharge air temperature. In this way, since different parameters have different effects on the target discharge air temperature under different current operating modes. Therefore, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target discharge air temperature is calculated. The target discharge air temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the cooling effect of the air conditioner.

[0050] In some embodiments, the air conditioner is provided with a temperature sensor, and the outdoor ambient temperature is obtained through the temperature sensor. Or, a temperature sensor is provided outdoors, and the outdoor ambient temperature is transmitted to the air conditioner by the temperature sensor through a wireless transmission method. Or, a temperature sensor is provided outdoors, and the outdoor ambient temperature is transmitted to the server by the temperature sensor through a wireless transmission method, and the air conditioner receives the outdoor ambient temperature sent by the server. Among them, the wireless transmission method includes Bluetooth, wifi, etc.

[0051] In some embodiments, the air conditioner is provided with a temperature sensor to obtain the indoor ambient temperature through the temperature sensor. Alternatively, a temperature sensor is provided indoors, and the temperature sensor transmits the indoor ambient temperature to the air conditioner through a wireless transmission method. Alternatively, a temperature sensor is provided indoors, and the temperature sensor transmits the indoor ambient temperature to the server through a wireless transmission method, and the air conditioner receives the indoor ambient temperature sent by the server. Among them, the wireless transmission method includes Bluetooth, wifi, etc.

[0052] Optionally, determining the defrost correction coefficient according to the current operating mode includes: in the case where the current operating mode is the cooling operating mode, determining the first preset value as the defrost correction coefficient; and / or, in the case where the current operating mode is the heating operating mode, obtaining the outdoor ambient temperature; determining the defrost correction coefficient according to the outdoor ambient temperature. Among them, the first preset value is 0.

[0053] Further, determining the defrost correction coefficient according to the outdoor ambient temperature includes: in the case where the outdoor ambient temperature is within the preset range, determining the first preset value as the defrost correction coefficient; otherwise, calculating according to the first preset algorithm using the outdoor ambient temperature to obtain the defrost correction coefficient. Among them, the preset range is -10 degrees Celsius to 6 degrees Celsius. In this way, since -10 degrees Celsius to 6 degrees Celsius is the frosting area during heating operation. Therefore, when the outdoor ambient temperature is within the preset range, the first preset value is set to represent the influence of air conditioner frosting on the target air outlet temperature. And when the outdoor ambient temperature is not within the preset range, through the first preset algorithm, the influence of air conditioner frosting on the target air outlet temperature is reflected. Adjusting the defrost correction coefficient according to different situations of air conditioner frosting can reasonably determine the target air outlet temperature, thereby reasonably adjusting the operation of the electronic expansion valve and making the control of the electronic expansion valve more reasonable.

[0054] Combined Figure 3 As shown, the third method for controlling the electronic expansion valve provided by the embodiments of the present disclosure includes:

[0055] Step S301, the air conditioner obtains the compressor frequency and the current operating mode, and then executes step S302.

[0056] Step S302, the air conditioner determines the target temperature according to the current operating mode, and then executes step S303.

[0057] Step S303, the air conditioner determines whether the current operating mode is the cooling operating mode. In the case where the current operating mode is the cooling operating mode, execute step S304. In the case where the current operating mode is not the cooling operating mode, execute step S305.

[0058] Step S304, the air conditioner determines the first preset value as the defrost correction coefficient; and then executes step S307.

[0059] Step S305, the air conditioner determines whether the current operating mode is the heating operating mode. If the current operating mode is the heating operating mode, step S306 is executed; if the current operating mode is not the heating operating mode, step S309 is executed.

[0060] Step S306, the air conditioner obtains the outdoor ambient temperature; determines the defrost correction coefficient according to the outdoor ambient temperature; and then executes step S307.

[0061] Step S307, the air conditioner determines the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient, and then executes step S308.

[0062] Step S308, the air conditioner controls the operation of the electronic expansion valve according to the target discharge air temperature.

[0063] Step S309, end the process.

[0064] Adopting the method for controlling the electronic expansion valve provided by the embodiment of the present disclosure, by obtaining the compressor frequency and the current operating mode. Determining the target temperature according to the current operating mode. Determining the defrost correction coefficient according to the current operating mode. Determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient. Controlling the operation of the electronic expansion valve according to the target discharge air temperature. In this way, since different parameters have different effects on the target discharge air temperature under different current operating modes. Therefore, determining the target temperature and the defrost correction coefficient according to the current operating mode, and then calculating the target discharge air temperature. The target discharge air temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0065] Further, calculating the defrost correction coefficient by using the outdoor ambient temperature according to the first preset algorithm, including: obtaining the defrost correction coefficient by calculating d = 2 * │Tao + 2│ - 18; where d is the defrost correction coefficient; Tao is the outdoor ambient temperature. Where, "*" is multiplication.

[0066] Optionally, determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient, including: obtaining the compressor coefficient, the outer ring temperature coefficient, and the conventional coefficient; determining the target discharge air temperature according to the compressor coefficient, the outer ring temperature coefficient, the conventional coefficient, the target temperature, the compressor frequency, and the defrost correction coefficient.

[0067] Further, obtaining the compressor coefficient in the following manner: obtaining the air conditioner model; using the preset first parameter database to perform a look-up operation on the air conditioner model to obtain the compressor coefficient corresponding to the air conditioner model. The first parameter database stores the correspondence between the air conditioner model and the compressor coefficient.

[0068] Further, the outdoor ambient temperature coefficient is obtained in the following manner: Obtain the air conditioner model; Use the preset second parameter database to perform a look-up operation on the air conditioner model to obtain the outdoor ambient temperature coefficient corresponding to the air conditioner model. The second parameter database stores the correspondence between the air conditioner model and the outdoor ambient temperature coefficient.

[0069] Further, the general coefficient is obtained in the following manner: Obtain the air conditioner model; Use the preset third parameter database to perform a look-up operation on the air conditioner model to obtain the general coefficient corresponding to the air conditioner model. The third parameter database stores the correspondence between the air conditioner model and the general coefficient. In some embodiments, the first parameter database, the second parameter database, and the third parameter database are the same database. In this way, the compressor coefficient, the outdoor ambient temperature coefficient, and the general coefficient are matched through the air conditioner model. It can make the calculated target discharge temperature more consistent with the characteristics of the air conditioner itself. Thus, the target discharge temperature can be determined more reasonably, and further, the electronic expansion valve can be controlled more reasonably.

[0070] Further, determining the target discharge temperature according to the compressor coefficient, the outdoor ambient temperature coefficient, the general coefficient, the target temperature, the compressor frequency, and the defrost correction coefficient includes: Obtain the target discharge temperature by calculating DisT = K1*Hz + K2*Tca + c + d; where DisT is the target discharge temperature; K1 is the compressor coefficient; Hz is the compressor frequency; K2 is the outdoor ambient temperature coefficient; Tca is the target temperature; c is the general coefficient; d is the defrost correction coefficient. In this way, the target discharge temperature is determined according to the compressor coefficient, the outdoor ambient temperature coefficient, the general coefficient, the target temperature, the compressor frequency, and the defrost correction coefficient, rather than only calculating the discharge temperature from the compressor frequency and the outdoor ambient temperature. The calculated target discharge temperature is more reasonable, and further, the control of the electronic expansion valve is more reasonable, improving the refrigeration effect of the air conditioner.

[0071] Optionally, controlling the operation of the electronic expansion valve according to the target discharge temperature includes: Use the preset control database to perform a look-up operation on the target discharge temperature to obtain the expansion valve opening corresponding to the target discharge temperature. Control the electronic expansion valve to operate according to the expansion valve opening. The control database stores the correspondence between the target discharge temperature and the expansion valve opening.

[0072] Combined with Figure 4 shown, the fourth method for controlling an electronic expansion valve provided by the embodiments of the present disclosure includes:

[0073] Step S401, the air conditioner obtains the compressor frequency and the current operating mode.

[0074] Step S402, the air conditioner determines the target temperature according to the current operating mode.

[0075] Step S403, the air conditioner determines the defrost correction coefficient according to the current operating mode.

[0076] Step S404, the air conditioner determines the target air discharge temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient.

[0077] Step S405, the air conditioner uses a preset control database to perform a look-up operation on the target air discharge temperature to obtain the expansion valve opening corresponding to the target air discharge temperature; controls the electronic expansion valve to operate according to the expansion valve opening.

[0078] By using the method for controlling an electronic expansion valve provided in the embodiments of the present disclosure, the compressor frequency and the current operating mode are obtained through the air conditioner. The target temperature is determined according to the current operating mode. The defrost correction coefficient is determined according to the current operating mode. The target air discharge temperature is determined according to the target temperature, the compressor frequency, and the defrost correction coefficient. A look-up operation is performed on the target air discharge temperature by using a preset control database to obtain the expansion valve opening corresponding to the target air discharge temperature; controls the electronic expansion valve to operate according to the expansion valve opening. In this way, since different parameters have different effects on the target air discharge temperature under different current operating modes. Therefore, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target air discharge temperature is calculated. The target air discharge temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0079] Combined with Figure 5 As shown, an apparatus 1 for controlling an electronic expansion valve disclosed in the embodiments of the present disclosure includes: an acquisition module 2, a target temperature determination module 3, a defrost correction coefficient determination module 4, a target air discharge temperature determination module 5, and an operation module 6. The acquisition module 2 is configured to acquire the compressor frequency and the current operating mode; the target temperature determination module 3 is configured to determine the target temperature according to the current operating mode; the defrost correction coefficient determination module 4 is configured to determine the defrost correction coefficient according to the current operating mode; the target air discharge temperature determination module 5 is configured to determine the target air discharge temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient; the operation module 6 is configured to control the electronic expansion valve to operate according to the target air discharge temperature.

[0080] Using the device for controlling an electronic expansion valve provided by the embodiments of the present disclosure, the compressor frequency and the current operating mode are obtained by an acquisition module. A target temperature determination module determines a target temperature according to the current operating mode. A defrost correction coefficient determination module determines a defrost correction coefficient according to the current operating mode. A target discharge air temperature determination module determines a target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient. An operation module controls the operation of the electronic expansion valve according to the target discharge air temperature. In this way, since different parameters have different effects on the target discharge air temperature under different current operating modes. Therefore, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target discharge air temperature is calculated. The target discharge air temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0081] Combined with Figure 6 As shown, the embodiments of the present disclosure provide an air conditioner 7, including a processor 8 and a memory 9. Optionally, the device may further include a communication interface 10 and a bus 11. Among them, the processor 8, the communication interface 10, and the memory 9 can complete communication with each other through the bus 11. The communication interface 10 can be used for information transmission. The processor 8 can call the logical instructions in the memory 9 to execute the method for controlling the electronic expansion valve in the above embodiments.

[0082] In addition, when the logical instructions in the above-mentioned memory 9 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.

[0083] The memory 9, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor 8 executes functional applications and data processing by running the program instructions / modules stored in the memory 9, that is, implements the method for controlling the electronic expansion valve in the above embodiments.

[0084] The memory 9 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the air conditioner. In addition, the memory 9 may include a high-speed random access memory and may also include a non-volatile memory.

[0085] Using the air conditioner according to the embodiments of the present disclosure, by obtaining the compressor frequency and the current operating mode, determining the target temperature according to the current operating mode, determining the defrost correction coefficient according to the current operating mode, determining the target air discharge temperature according to the target temperature, the compressor frequency and the defrost correction coefficient, and controlling the operation of the electronic expansion valve according to the target air discharge temperature. In this way, since different parameters have different effects on the target air discharge temperature under different current operating modes, the target temperature and the defrost correction coefficient are determined according to the current operating mode, and then the target air discharge temperature is calculated. The target air discharge temperature can be determined more reasonably, so as to adjust the electronic expansion valve more reasonably and improve the refrigeration effect of the air conditioner.

[0086] The embodiments of the present disclosure provide a storage medium storing program instructions, and when the program instructions are running, they execute the above method for controlling the electronic expansion valve.

[0087] The embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are set to execute the above method for controlling the electronic expansion valve.

[0088] The above computer-readable storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium.

[0089] The technical solution of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The foregoing storage medium may be a non-transient storage medium, including: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs, or may also be a transient storage medium.

[0090] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terms used in this application are only for describing embodiments and do not limit the claims. As used in the description of embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations of one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or apparatus comprising the element. Herein, each embodiment may focus on the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method parts disclosed in the embodiments, the relevant parts may refer to the description of the method parts.

[0091] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person may use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0092] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in the embodiments of the present disclosure, the various functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0093] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the block can occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks can also occur in a different order than that disclosed in the description. Sometimes, there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. Each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an electronic expansion valve, characterized in that, including: Obtain the compressor frequency and the current operating mode; Determine the target temperature according to the current operating mode; Determine the defrost correction coefficient according to the current operating mode; Determine the target discharge air temperature according to the target temperature, the compressor frequency and the defrost correction coefficient; Control the operation of the electronic expansion valve according to the target discharge air temperature; The current operating mode is a cooling operating mode or a heating operating mode. Determining a defrost correction coefficient according to the current operating mode includes: in the case where the current operating mode is a cooling operating mode, determining a first preset value as the defrost correction coefficient; and / or, in the case where the current operating mode is a heating operating mode, obtaining the outdoor ambient temperature; in the case where the outdoor ambient temperature is within a preset range, determining a first preset value as the defrost correction coefficient; otherwise, calculating , to obtain the defrost correction coefficient; where d is the defrost correction coefficient; Tao is the outdoor ambient temperature; Determining the target discharge air temperature according to the target temperature, the compressor frequency, and the defrost correction coefficient includes: obtaining a compressor coefficient, an outer ambient temperature coefficient, and a conventional coefficient; calculating , to obtain the target discharge air temperature; where DisT is the target discharge air temperature; K1 is the compressor coefficient; Hz is the compressor frequency; K2 is the outer ambient temperature coefficient; Tca is the target temperature; c is the conventional coefficient; and d is the defrost correction coefficient.

2. The method according to claim 1, characterized in that, The current operating mode is a refrigeration operating mode or a heating operating mode. Determining the target temperature according to the current operating mode includes: When the current operating mode is a refrigeration operating mode, obtain the outdoor ambient temperature; determine the outdoor ambient temperature as the target temperature; and / or, When the current operating mode is a heating operating mode, obtain the indoor ambient temperature; determine the indoor ambient temperature as the target temperature.

3. A device for controlling an electronic expansion valve, characterized in that, including: An acquisition module configured to acquire the compressor frequency and the current operating mode; A target temperature determination module configured to determine the target temperature according to the current operating mode; A defrost correction coefficient determination module configured to determine the defrost correction coefficient according to the current operating mode; A target discharge air temperature determination module configured to determine the target discharge air temperature according to the target temperature, the compressor frequency and the defrost correction coefficient; An operation module configured to control the operation of the electronic expansion valve according to the target discharge air temperature; The current operating mode is a refrigeration operating mode or a heating operating mode. The defrost correction coefficient determination module is further configured to determine the defrost correction coefficient according to the current operating mode in the following manner: when the current operating mode is a refrigeration operating mode, determine a first preset value as the defrost correction coefficient; and / or, when the current operating mode is a heating operating mode, obtain the outdoor ambient temperature; When the outdoor ambient temperature is within a preset range, determine a first preset value as the defrost correction coefficient; Otherwise, calculate , and obtain a defrost correction coefficient; where d is the defrost correction coefficient; Tao is the outdoor ambient temperature; The target exhalation temperature determination module is further configured to determine the target exhalation temperature based on the target temperature, the compressor frequency, and the defrost correction coefficient in the following manner: obtain the compressor coefficient, the outer ambient temperature coefficient, and the conventional coefficient; calculate , to obtain the target exhalation temperature; where DisT is the target exhalation temperature; K1 is the compressor coefficient; Hz is the compressor frequency; K2 is the outer ambient temperature coefficient; Tca is the target temperature; c is the conventional coefficient; and d is the defrost correction coefficient.

4. An air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the method for controlling an electronic expansion valve according to any one of claims 1 to 2 when running the program instructions.

5. A storage medium storing program instructions, characterized in that, When the program instructions are running, execute the method for controlling an electronic expansion valve according to any one of claims 1 to 2.

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