Method, apparatus and storage medium for detecting an electronic expansion valve

Abstract

The present application relates to the technical field of electronic expansion valve detection, and discloses a method for detecting an electronic expansion valve, including: obtaining the operating frequency of an air conditioner compressor; determining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve when the operating frequency of the compressor is not lower than a preset frequency; and determining the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve. With this solution, it is possible to determine the detection information of the electronic expansion valve by combining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, avoiding the problem that some abnormal situations are ignored, and providing a more accurate electronic expansion valve fault detection solution for users. The present application also discloses a device and a storage medium for detecting an electronic expansion valve.

Description

Technical Field

[0001] This application relates to the technical field of electronic expansion valve detection, for example, to a method, device, and storage medium for detecting an electronic expansion valve. Background Art

[0002] Currently, air conditioners have become a necessity in people's homes. Especially when the outdoor temperature is relatively high or low, users can control the air conditioner to operate in corresponding modes to adjust the temperature of the room where the air conditioner is located. As an essential throttling device in an air conditioner, the fault detection method of the electronic expansion valve has always been the focus of research and development personnel.

[0003] Existing detection schemes for electronic expansion valves include: obtaining the current exhaust temperature of the compressor, and calculating the temperature difference between the exhaust temperature of the compressor when an electronic expansion valve fault detection instruction is detected and the exhaust temperature of the compressor after the current opening of the electronic expansion valve is increased by a preset opening; when the temperature difference is outside the preset temperature difference range, it is determined that the electronic expansion valve has a fault. It can be seen that the existing detection scheme for electronic expansion valves can detect some fault conditions of the electronic expansion valve, but this detection scheme still cannot detect fault conditions caused by improper installation of the electronic expansion valve coil or jamming of the electronic expansion valve, resulting in inaccurate detection information output by the electronic expansion valve. 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 a comprehensive review, nor is it intended to identify key / important constituent elements or delineate the scope of protection of these embodiments. Instead, it serves as a prelude to the detailed description that follows.

[0005] Embodiments of the present disclosure provide a method, device, and storage medium for detecting an electronic expansion valve to provide a more accurate detection method for the electronic expansion valve.

[0006] In some embodiments, the method for detecting an electronic expansion valve includes: obtaining the operating frequency of an air conditioner compressor; when the operating frequency of the compressor is not lower than a preset frequency, determining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve; and determining the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve.

[0007] In some embodiments, the method for detecting an electronic expansion valve includes: determining that the detection information of the electronic expansion valve is a fault when the change amount of the opening degree of the electronic expansion valve is less than a first opening degree threshold and the corrected exhaust temperature amount is less than a first temperature threshold; determining that the detection information of the electronic expansion valve is normal when the change amount of the opening degree of the electronic expansion valve is not less than the first opening degree threshold and not higher than a second opening degree threshold; determining that the detection information of the electronic expansion valve is a fault when the change amount of the opening degree of the electronic expansion valve is greater than the second opening degree threshold and the corrected exhaust temperature amount is greater than a second temperature threshold.

[0008] In some embodiments, the method for detecting an electronic expansion valve includes: obtaining an initial opening degree of the electronic expansion valve when the operating frequency of the compressor is a preset frequency; obtaining the current opening degree of the electronic expansion valve after a preset time period; and determining the difference between the current opening degree and the initial opening degree as the change amount of the opening degree of the electronic expansion valve.

[0009] In some embodiments, the method for detecting an electronic expansion valve includes: obtaining a change amount of the exhaust temperature and a change amount of the ambient temperature; and determining the difference between the change amount of the exhaust temperature and the change amount of the ambient temperature as the corrected exhaust temperature amount.

[0010] In some embodiments, the method for detecting an electronic expansion valve includes: obtaining an initial exhaust temperature of the compressor when the operating frequency of the compressor is a preset frequency; obtaining the current exhaust temperature of the compressor after a preset time period; and using the difference between the current exhaust temperature and the initial exhaust temperature as the change amount of the exhaust temperature.

[0011] In some embodiments, the method for detecting an electronic expansion valve includes: obtaining an initial ambient temperature of the environment where the air conditioner is located when the operating frequency of the compressor is a preset frequency; obtaining the current ambient temperature of the environment where the air conditioner is located after a preset time period; and using the difference between the current ambient temperature and the initial ambient temperature as the change amount of the ambient temperature.

[0012] In some embodiments, the method for detecting an electronic expansion valve includes: pushing the detection information to a target user so that the target user can know the operating state of the electronic expansion valve.

[0013] In some embodiments, the apparatus for detecting an electronic expansion valve includes: an obtaining module configured to obtain the operating frequency of an air conditioner compressor; a first determining module configured to determine the change amount of the opening degree of the electronic expansion valve and the corrected exhaust temperature amount when the operating frequency of the compressor is not less than a preset frequency; and a second determining module configured to determine the detection information of the electronic expansion valve according to the change amount of the opening degree of the electronic expansion valve and the corrected exhaust temperature amount.

[0014] In some embodiments, the device for detecting an electronic expansion valve includes: a processor and a memory storing program instructions, and the processor is configured to execute the foregoing method for detecting an electronic expansion valve when running the program instructions.

[0015] In some embodiments, the storage medium stores program instructions, and when the program instructions are running, they execute the foregoing method for detecting an electronic expansion valve.

[0016] The method, device, and storage medium for detecting an electronic expansion valve provided by the embodiments of the present disclosure can achieve the following technical effects: by obtaining the operating frequency of the air conditioner compressor; when the operating frequency of the compressor is not lower than a preset frequency, determining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve; and determining the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve. With this solution, it is possible to determine the detection information of the electronic expansion valve by combining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, avoiding the problem that some abnormal situations are ignored, and providing a more accurate electronic expansion valve fault detection solution for users.

[0017] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present 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 proportional limitation, and among them:

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

[0020] Figure 2 is a schematic diagram of a method for determining the opening change amount provided by an embodiment of the present disclosure;

[0021] Figure 3 is a schematic diagram of a method for determining the exhaust temperature correction amount provided by an embodiment of the present disclosure;

[0022] Figure 4 is a schematic diagram of a method for obtaining the exhaust temperature change amount provided by an embodiment of the present disclosure;

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

[0024] Figure 6 is another schematic diagram of a device for detecting an electronic expansion valve provided by an embodiment of the present disclosure. Detailed Implementation Modes

[0025] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, 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 for reference and illustration purposes only and are not intended 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 full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, 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 are not necessarily used to 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 association relationship of an object, indicating that three relationships may exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0030] The term "corresponding" may refer to an association relationship or a binding relationship. A corresponding to B means that there is an association relationship or a binding relationship between A and B.

[0031] In the embodiments of the present disclosure, an intelligent household appliance device refers to a household appliance product formed by introducing microprocessor, sensor technology, and network communication technology into household appliance devices, and has the characteristics of intelligent control, intelligent perception, and intelligent application. The operation process of intelligent household appliance devices often depends on the application and processing of modern technologies such as the Internet of Things, the Internet, and electronic chips. For example, an intelligent household appliance device can be connected to an electronic device to realize remote control and management of the intelligent household appliance device by the user.

[0032] In the embodiments of the present disclosure, a terminal device refers to an electronic device with wireless connection capabilities. The terminal device can communicate with the intelligent household appliance devices as described above by connecting to the Internet, or can directly communicate with the intelligent household appliance devices as described above through means such as Bluetooth and Wi-Fi. In some embodiments, the terminal device is, for example, a mobile device, a computer, or an in-vehicle device built into a hovering vehicle, etc., or any combination thereof. The mobile device can, for example, include a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, etc., or any combination thereof. Among them, the wearable device can, for example, include a smart watch, a smart bracelet, a pedometer, etc.

[0033] Figure 1 is a schematic diagram of a method for detecting an electronic expansion valve provided by an embodiment of the present disclosure; in combination with Figure 1 As shown, an embodiment of the present disclosure provides a method for detecting an electronic expansion valve, including:

[0034] S11, the air conditioner obtains the operating frequency of its compressor.

[0035] S12, when the operating frequency of the compressor is not lower than a preset frequency, the air conditioner determines the opening change amount of the electronic expansion valve and the exhaust temperature correction amount.

[0036] S13, the air conditioner determines the detection information of the electronic expansion valve according to the opening change amount of the electronic expansion valve and the exhaust temperature correction amount.

[0037] In this solution, the air conditioner can obtain the operating frequency of the compressor. Further, the air conditioner can compare the operating frequency of the compressor with a preset frequency, and can determine that the operating frequency of the compressor tends to be stable when the operating frequency of the compressor is not lower than / reaches the preset frequency. Here, the preset frequency can be the frequency when the compressor operates stably. In this way, the acquisition timing of the opening change amount of the electronic expansion valve and the exhaust temperature correction amount can be determined, ensuring that the opening change amount of the electronic expansion valve and the exhaust temperature correction amount with higher accuracy are obtained.

[0038] Further, after determining the opening change amount of the electronic expansion valve and the exhaust temperature correction amount, the air conditioner can determine the detection information of the electronic expansion valve in combination with the opening change amount of the electronic expansion valve and the exhaust temperature correction amount. Here, the detection information of the electronic expansion valve can include a fault or normal.

[0039] By using the method for detecting an electronic expansion valve provided in the embodiments of the present disclosure, the operating frequency of an air-conditioning compressor is obtained; when the operating frequency of the compressor is not lower than a preset frequency, the opening change amount and the exhaust temperature correction amount of the electronic expansion valve are determined; and according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, the detection information of the electronic expansion valve is determined. With this solution, the detection information of the electronic expansion valve can be determined by combining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, avoiding the problem that some abnormal situations are ignored, and providing a more accurate electronic expansion valve fault detection solution for users.

[0040] Optionally, in S13, the air conditioner determines the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, including:

[0041] When the opening change amount of the electronic expansion valve is less than a first opening threshold and the exhaust temperature correction amount is less than a first temperature threshold, the air conditioner determines that the detection information of the electronic expansion valve is a fault. When the opening change amount of the electronic expansion valve is not lower than the first opening threshold and not higher than a second opening threshold, the air conditioner determines that the detection information of the electronic expansion valve is normal. When the opening change amount of the electronic expansion valve is greater than the second opening threshold and the exhaust temperature correction amount is greater than a second temperature threshold, the air conditioner determines that the detection information of the electronic expansion valve is a fault.

[0042] In this solution, when the change amount of the opening degree of the electronic expansion valve is less than the first opening degree threshold and the exhaust temperature correction amount is less than the first temperature threshold, the air conditioner determines that the detection information of the electronic expansion valve is faulty. Here, the first opening degree threshold and the first temperature threshold can be pre-stored in the air conditioner. As an example, the first opening degree threshold can be -50 steps, and the first temperature threshold can be 2°C. In this way, when the change amount of the opening degree of the electronic expansion valve is less than -50 steps and the exhaust temperature correction amount is less than 2°C, the air conditioner determines that the detection information of the electronic expansion valve is faulty; when the change amount of the opening degree of the electronic expansion valve is not lower than the first opening degree threshold and not higher than the second opening degree threshold, the air conditioner determines that the detection information of the electronic expansion valve is normal. Here, the second opening degree threshold can be pre-stored in the air conditioner. As an example, the second opening degree threshold can be 50 steps. In this way, when the change amount of the opening degree of the electronic expansion valve is not lower than -50 steps and not higher than 50 steps, the air conditioner determines that the detection information of the electronic expansion valve is normal; when the change amount of the opening degree of the electronic expansion valve is greater than the second opening degree threshold and the exhaust temperature correction amount is greater than the second temperature threshold, the air conditioner determines that the detection information of the electronic expansion valve is faulty. Here, the second temperature threshold can be pre-stored in the air conditioner. As an example, the second temperature threshold can be -2°C. In this way, when the change amount of the opening degree of the electronic expansion valve is greater than 50 steps and the exhaust temperature correction amount is greater than -2°C, the air conditioner determines that the detection information of the electronic expansion valve is faulty. With this solution, it is possible to comprehensively consider the change situation of the opening degree of the electronic expansion valve and the exhaust temperature correction situation, and determine the detection information of the electronic expansion valve more accurately.

[0043] Figure 2 It is a schematic diagram of a method for determining the change amount of the opening degree provided by an embodiment of the present disclosure; in combination with Figure 2 As shown, optionally, S12, the air conditioner determines the change amount of the opening degree of the electronic expansion valve, including:

[0044] S21, when the operating frequency of the compressor is the preset frequency, the air conditioner obtains the initial opening degree of the electronic expansion valve.

[0045] S22, after a preset time period, the air conditioner obtains the current opening degree of the electronic expansion valve.

[0046] S23, the air conditioner determines the difference between the current opening degree and the initial opening degree as the change amount of the opening degree of the electronic expansion valve.

[0047] In this solution, when the operating frequency of the compressor is the preset frequency and it is determined that the air-conditioning compressor is currently in a stable operating state, the air conditioner can obtain the current opening degree of the electronic expansion valve. Here, the current opening degree of the electronic expansion valve is the opening degree of the electronic expansion valve when the operating frequency of the compressor is the preset frequency. Further, the air conditioner can obtain the current opening degree of the electronic expansion valve after a preset duration. As an example, the preset duration can be 3 minutes. In this way, the air conditioner can combine the initial opening degree of the electronic expansion valve and the current opening degree of the electronic expansion valve to determine the change amount of the opening degree of the electronic expansion valve. Specifically, the change amount of the opening degree of the electronic expansion valve can be determined by the following method: △F = F 当前 - F 初始 ; where △F is the change amount of the opening degree of the electronic expansion valve, F 当前 is the current opening degree of the electronic expansion valve, and F 初始 is the initial opening degree of the electronic expansion valve. With this solution, the difference between the current opening degree and the initial opening degree can be determined as the change amount of the opening degree of the electronic expansion valve, achieving accurate acquisition of the change amount of the opening degree and providing an accurate data basis for determining the detection information of the electronic expansion valve.

[0048] Figure 3 is a schematic diagram of a method for determining the exhaust temperature correction amount provided by an embodiment of the present disclosure; combined with Figure 3 as shown, optionally, S12, the air conditioner determines the exhaust temperature correction amount, including:

[0049] S31, the air conditioner obtains the exhaust temperature change amount and the ambient temperature change amount.

[0050] S32, the air conditioner determines the difference between the exhaust temperature change amount and the ambient temperature change amount as the exhaust temperature correction amount.

[0051] In this solution, in order to determine a more accurate exhaust temperature correction amount, the air conditioner can obtain the exhaust temperature change amount and the ambient temperature change amount, and combine the exhaust temperature change amount and the ambient temperature change amount to determine the exhaust temperature correction amount. Specifically, the exhaust temperature correction amount can be determined by the following method: △U = △T - △S; where △U is the exhaust temperature correction amount, △T is the exhaust temperature change amount, and △S is the ambient temperature change amount. With this solution, the difference between the exhaust temperature change amount and the ambient temperature change amount can be determined as the exhaust temperature correction amount, achieving accurate acquisition of the exhaust temperature correction amount and providing an accurate data basis for determining the detection information of the electronic expansion valve.

[0052] Figure 4 is a schematic diagram of a method for obtaining the exhaust temperature change amount provided by an embodiment of the present disclosure; combined with Figure 4 as shown, optionally, S31, the air conditioner obtains the exhaust temperature change amount, including:

[0053] S41. When the operating frequency of the compressor is the preset frequency, the air conditioner obtains the initial exhaust temperature of the compressor.

[0054] S42. After a preset duration, the air conditioner obtains the current exhaust temperature of the compressor.

[0055] S43. The air conditioner takes the difference between the current exhaust temperature and the initial exhaust temperature as the exhaust temperature change amount.

[0056] In this solution, when the operating frequency of the compressor is the preset frequency and it is determined that the air conditioner compressor is currently in a stable operating state, the air conditioner can obtain the initial exhaust temperature of the compressor. Here, the initial exhaust temperature of the compressor is the exhaust temperature of the compressor when the operating frequency of the compressor is the preset frequency. Further, the air conditioner can obtain the current exhaust temperature of the compressor after a preset duration. As an example, the preset duration can be 3 minutes. In this way, the air conditioner can combine the initial exhaust temperature of the compressor and the current exhaust temperature of the compressor to determine the exhaust temperature change amount. Specifically, the exhaust temperature change amount can be determined in the following way: ΔT = T 当前 - T 初始 ; where ΔT is the exhaust temperature change amount, T 当前 is the current exhaust temperature of the compressor, and T 初始 is the initial exhaust temperature of the compressor. With this solution, the difference between the current exhaust temperature and the initial exhaust temperature can be taken as the exhaust temperature change amount, realizing the accurate acquisition of the exhaust temperature change amount and providing an accurate data basis for determining the exhaust temperature correction amount.

[0057] Optionally, S31. The air conditioner obtains the ambient temperature change amount, including:

[0058] When the operating frequency of the compressor is the preset frequency, the air conditioner obtains the initial ambient temperature of its location environment.

[0059] After a preset duration, the air conditioner obtains the current ambient temperature of its location environment.

[0060] The air conditioner takes the difference between the current ambient temperature and the initial ambient temperature as the ambient temperature change amount.

[0061] In this solution, when the operating frequency of the compressor is the preset frequency and it is determined that the air-conditioning compressor is currently in a stable operating state, the air conditioner can obtain the initial ambient temperature of its location environment. Here, the initial ambient temperature of the air conditioner's location environment is the ambient temperature of the environment where the air conditioner is located when the operating frequency of the compressor is the preset frequency. Further, after a preset duration, the air conditioner can obtain the current ambient temperature of its location environment. As an example, the preset duration can be 3 minutes. In this way, the air conditioner can combine the initial ambient temperature and the current ambient temperature of its location environment to determine the ambient temperature change. Specifically, the ambient temperature change can be determined by the following method: △S = S 当前 - S 初始 ; where △S is the ambient temperature change, S 当前 is the current ambient temperature of the air conditioner's location environment, and S 初始 is the initial ambient temperature of the air conditioner's location environment. With this solution, the difference between the current ambient temperature and the initial ambient temperature can be used as the ambient temperature change to accurately obtain the ambient temperature change, providing an accurate data basis for determining the exhaust temperature correction amount.

[0062] Optionally, after determining the detection information of the electronic expansion valve, it further includes:

[0063] The air conditioner pushes the detection information to the target user so that the target user can know the operating state of the electronic expansion valve.

[0064] In this solution, after determining the detection information of the electronic expansion valve, in order to enable the target user to promptly know the operating state of the electronic expansion valve and take timely and effective countermeasures for the operating state, the air conditioner can be controlled to push the detection information to the target user. Here, the target user can be the user with the highest priority in the household or the maintenance personnel associated with the air conditioner. Specifically, the push method of the detection information is not limited to text push, image push, light push, etc. With this solution, the target user can promptly know the operating state of the electronic expansion valve, which helps to promptly and effectively repair the electronic expansion valve in case of a failure, reducing the adverse impact on the intelligent control of the air conditioner caused by the malfunction of the electronic expansion valve.

[0065] Figure 5 is a schematic diagram of a device for detecting an electronic expansion valve provided by an embodiment of the present disclosure; combined with Figure 5As shown in the figure, an embodiment of the present disclosure provides a device for detecting an electronic expansion valve, including an acquisition module 51, a first determination module 52, and a second determination module 53. The acquisition module 51 is configured to acquire the operating frequency of an air-conditioning compressor; the first determination module 52 is configured to determine the opening change amount and the exhaust temperature correction amount of the electronic expansion valve when the operating frequency of the compressor is not lower than a preset frequency; the second determination module 53 is configured to determine the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve.

[0066] Using the device for detecting an electronic expansion valve provided by the embodiment of the present disclosure, by acquiring the operating frequency of an air-conditioning compressor; when the operating frequency of the compressor is not lower than a preset frequency, determining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve; and determining the detection information of the electronic expansion valve according to the opening change amount and the exhaust temperature correction amount of the electronic expansion valve. With this solution, it is possible to determine the detection information of the electronic expansion valve by combining the opening change amount and the exhaust temperature correction amount of the electronic expansion valve, avoiding the problem that some abnormal situations are ignored, and providing a more accurate electronic expansion valve fault detection solution for users.

[0067] Figure 6 is a schematic diagram of another device for detecting an electronic expansion valve provided by an embodiment of the present disclosure; in combination with Figure 6 As shown in the figure, an embodiment of the present disclosure provides a device for detecting an electronic expansion valve, including a processor 100 and a memory 101. Optionally, the device may further include a communication interface 102 and a bus 103. Among them, the processor 100, the communication interface 102, and the memory 101 can communicate with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the method for detecting an electronic expansion valve in the above embodiment.

[0068] In addition, when the logical instructions in the above-mentioned memory 101 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.

[0069] The memory 101, 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 method in the embodiment of the present disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, that is, implements the method for detecting an electronic expansion valve in the above embodiment.

[0070] The memory 101 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 terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0071] Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the method for detecting an electronic expansion valve described above.

[0072] Embodiments of the present disclosure provide a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to execute the method for detecting an electronic expansion valve described above.

[0073] The above-mentioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium.

[0074] The technical solution of the embodiments of the present disclosure may 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: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, etc., which are various media that can store program codes, or may also be a transient storage medium.

[0075] 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. The 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 the embodiments and do not limit the claims. As used in the description of the embodiments and the 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 of these. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, or device comprising the element. In this document, what each embodiment focuses on may be the differences from other embodiments, and the same or similar parts between 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.

[0076] 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 conciseness 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.

[0077] 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 may be only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the displayed or discussed couplings or direct couplings or communication connections to each other may be through some interfaces. The indirect couplings or communication connections of devices or units may be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, in the embodiments of the present disclosure, each functional unit can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0078] 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 may 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 may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, which may 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 may also occur in a different order than disclosed in the description. Sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, which may 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 detecting an electronic expansion valve, characterized in that, Including: Obtain the operating frequency of the air-conditioning compressor; When the operating frequency of the compressor is not lower than the preset frequency, determine the opening change amount and the exhaust temperature correction amount of the electronic expansion valve; Determine the detection information of the electronic expansion valve according to the opening change amount of the electronic expansion valve and the exhaust temperature correction amount; The determining the detection information of the electronic expansion valve according to the opening change amount of the electronic expansion valve and the exhaust temperature correction amount includes: When the opening change amount of the electronic expansion valve is less than the first opening threshold and the exhaust temperature correction amount is less than the first temperature threshold, determine that the detection information of the electronic expansion valve is a fault; When the opening change amount of the electronic expansion valve is not lower than the first opening threshold and not higher than the second opening threshold, determine that the detection information of the electronic expansion valve is normal; When the opening change amount of the electronic expansion valve is greater than the second opening threshold and the exhaust temperature correction amount is greater than the second temperature threshold, determine that the detection information of the electronic expansion valve is a fault; The determining the exhaust temperature correction amount includes: Obtain the exhaust temperature change amount and the ambient temperature change amount; Determine the difference between the exhaust temperature change amount and the ambient temperature change amount as the exhaust temperature correction amount.

2. The method according to claim 1, wherein The determining the opening change amount of the electronic expansion valve includes: When the operating frequency of the compressor is the preset frequency, obtain the initial opening of the electronic expansion valve; After a preset time period, obtain the current opening of the electronic expansion valve; Determine the difference between the current opening and the initial opening as the opening change amount of the electronic expansion valve.

3. The method according to claim 1, characterized in that, The obtaining the exhaust temperature change amount includes: When the operating frequency of the compressor is the preset frequency, obtain the initial exhaust temperature of the compressor; After a preset time period, obtain the current exhaust temperature of the compressor; Take the difference between the current exhaust temperature and the initial exhaust temperature as the exhaust temperature change amount.

4. The method according to claim 3, wherein The obtaining the ambient temperature change amount includes: When the operating frequency of the compressor is the preset frequency, obtain the initial ambient temperature of the environment where the air conditioner is located; After a preset time period, obtain the current ambient temperature of the environment where the air conditioner is located; Take the difference between the current ambient temperature and the initial ambient temperature as the ambient temperature change amount.

5. The method according to claim 1, wherein After determining the detection information of the electronic expansion valve, the method further includes: Push the detection information to the target user so that the target user can know the operating state of the electronic expansion valve.

6. A device for detecting an electronic expansion valve, characterized in that, Including: An obtaining module configured to obtain the operating frequency of the air-conditioning compressor; A first determining module configured to determine the opening change amount and the exhaust temperature correction amount of the electronic expansion valve when the operating frequency of the compressor is not lower than the preset frequency; A second determining module configured to determine the detection information of the electronic expansion valve according to the opening change amount of the electronic expansion valve and the exhaust temperature correction amount; The determining the detection information of the electronic expansion valve according to the opening change amount of the electronic expansion valve and the exhaust temperature correction amount includes: When the change amount of the opening degree of the electronic expansion valve is less than the first opening degree threshold and the exhaust gas temperature correction amount is less than the first temperature threshold, determine that the detection information of the electronic expansion valve is a fault; When the change amount of the opening degree of the electronic expansion valve is not less than the first opening degree threshold and not higher than the second opening degree threshold, determine that the detection information of the electronic expansion valve is normal; When the change amount of the opening degree of the electronic expansion valve is greater than the second opening degree threshold and the exhaust gas temperature correction amount is greater than the second temperature threshold, determine that the detection information of the electronic expansion valve is a fault; The determination of the exhaust gas temperature correction amount includes: Obtain the change amount of the exhaust gas temperature and the change amount of the ambient temperature; Determine the difference between the change amount of the exhaust gas temperature and the change amount of the ambient temperature as the exhaust gas temperature correction amount.

7. A device for detecting an electronic expansion valve, comprising a processor and a memory storing program instructions, characterized in that The processor is configured to execute the method for detecting an electronic expansion valve according to any one of claims 1 to 5 when running the program instructions.

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

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